{
    "file_diffs": [
        {
            "old_file_content": "import asyncio\nimport binascii\nimport collections\nimport cgi\nimport http.cookies\nimport io\nimport json\nimport re\nimport weakref\n\nfrom urllib.parse import urlsplit, parse_qsl, unquote\n\nfrom .abc import AbstractRouter, AbstractMatchInfo\nfrom .multidict import (CaseInsensitiveMultiDict,\n                        CaseInsensitiveMutableMultiDict,\n                        MultiDict,\n                        MutableMultiDict)\nfrom .protocol import Response as ResponseImpl, HttpVersion, HttpVersion11\nfrom .server import ServerHttpProtocol\nfrom .streams import EOF_MARKER\n\n\n__all__ = [\n    'Application',\n    'HttpVersion',\n    'Request',\n    'StreamResponse',\n    'Response',\n    'UrlDispatcher',\n    'UrlMappingMatchInfo',\n    'HTTPException',\n    'HTTPError',\n    'HTTPRedirection',\n    'HTTPSuccessful',\n    'HTTPOk',\n    'HTTPCreated',\n    'HTTPAccepted',\n    'HTTPNonAuthoritativeInformation',\n    'HTTPNoContent',\n    'HTTPResetContent',\n    'HTTPPartialContent',\n    'HTTPMultipleChoices',\n    'HTTPMovedPermanently',\n    'HTTPFound',\n    'HTTPSeeOther',\n    'HTTPNotModified',\n    'HTTPUseProxy',\n    'HTTPTemporaryRedirect',\n    'HTTPClientError',\n    'HTTPBadRequest',\n    'HTTPUnauthorized',\n    'HTTPPaymentRequired',\n    'HTTPForbidden',\n    'HTTPNotFound',\n    'HTTPMethodNotAllowed',\n    'HTTPNotAcceptable',\n    'HTTPProxyAuthenticationRequired',\n    'HTTPRequestTimeout',\n    'HTTPConflict',\n    'HTTPGone',\n    'HTTPLengthRequired',\n    'HTTPPreconditionFailed',\n    'HTTPRequestEntityTooLarge',\n    'HTTPRequestURITooLong',\n    'HTTPUnsupportedMediaType',\n    'HTTPRequestRangeNotSatisfiable',\n    'HTTPExpectationFailed',\n    'HTTPServerError',\n    'HTTPInternalServerError',\n    'HTTPNotImplemented',\n    'HTTPBadGateway',\n    'HTTPServiceUnavailable',\n    'HTTPGatewayTimeout',\n    'HTTPVersionNotSupported',\n    ]\n\n\nsentinel = object()\n\n\nclass HeadersMixin:\n\n    _content_type = None\n    _content_dict = None\n    _stored_content_type = sentinel\n\n    def _parse_content_type(self, raw):\n        self._stored_content_type = raw\n        if raw is None:\n            # default value according to RFC 2616\n            self._content_type = 'application/octet-stream'\n            self._content_dict = {}\n        else:\n            self._content_type, self._content_dict = cgi.parse_header(raw)\n\n    @property\n    def content_type(self):\n        \"\"\"The value of content part for Content-Type HTTP header.\"\"\"\n        raw = self.headers.get('Content-Type')\n        if self._stored_content_type != raw:\n            self._parse_content_type(raw)\n        return self._content_type\n\n    @property\n    def charset(self):\n        \"\"\"The value of charset part for Content-Type HTTP header.\"\"\"\n        # Assumes that charset is UTF8 if not specified\n        raw = self.headers.get('Content-Type')\n        if self._stored_content_type != raw:\n            self._parse_content_type(raw)\n        return self._content_dict.get('charset')\n\n    @property\n    def content_length(self):\n        \"\"\"The value of Content-Length HTTP header.\"\"\"\n        l = self.headers.get('Content-Length')\n        if l is None:\n            return None\n        else:\n            return int(l)\n\n\n############################################################\n# HTTP Request\n############################################################\n\n\nclass Request(HeadersMixin):\n\n    def __init__(self, app, message, payload, writer):\n        self._app = app\n        self._version = message.version\n        self._writer = writer\n        self._method = message.method\n        self._host = message.headers.get('HOST')\n        path = unquote(message.path)\n        self._path_qs = path\n        res = urlsplit(path)\n        self._path = res.path\n        self._query_string = res.query\n        self._get = None\n        self._post = None\n        self._headers = CaseInsensitiveMultiDict._from_uppercase_multidict(\n            message.headers)\n\n        if self._version < HttpVersion11:\n            self._keep_alive = False\n        elif message.should_close:\n            self._keep_alive = False\n        else:\n            self._keep_alive = True\n\n        # matchdict, route_name, handler\n        # or information about traversal lookup\n        self._match_info = None  # initialized after route resolving\n\n        self._payload = payload\n        self._response = None\n        self._cookies = None\n\n    @property\n    def method(self):\n        \"\"\"Read only property for getting HTTP method.\n\n        The value is upper-cased str like 'GET', 'POST', 'PUT' etc.\n        \"\"\"\n        return self._method\n\n    @property\n    def version(self):\n        \"\"\"Read only property for getting HTTP version of request.\n\n        Returns aiohttp.protocol.HttpVersion instance.\n        \"\"\"\n        return self._version\n\n    @property\n    def host(self):\n        \"\"\"Read only property for getting *HOST* header of request.\n\n        Returns str or None if HTTP request has no HOST header.\n        \"\"\"\n        return self._host\n\n    @property\n    def path_qs(self):\n        \"\"\"The URL including PATH_INFO and the query string.\n\n        E.g, /app/blog?id=10\n        \"\"\"\n        return self._path_qs\n\n    @property\n    def path(self):\n        \"\"\"The URL including *PATH INFO* without the host or scheme.\n\n        E.g., ``/app/blog``\n        \"\"\"\n        return self._path\n\n    @property\n    def query_string(self):\n        \"\"\"The query string in the URL.\n\n        E.g., id=10\n        \"\"\"\n        return self._query_string\n\n    @property\n    def GET(self):\n        \"\"\"A multidict with all the variables in the query string.\n\n        Lazy property.\n        \"\"\"\n        if self._get is None:\n            self._get = MultiDict(parse_qsl(self._query_string))\n        return self._get\n\n    @property\n    def headers(self):\n        \"\"\"A case-insensitive multidict with all headers.\n\n        Lazy property.\n        \"\"\"\n        return self._headers\n\n    @property\n    def keep_alive(self):\n        \"\"\"Is keepalive enabled by client?\"\"\"\n        return self._keep_alive\n\n    @property\n    def match_info(self):\n        \"\"\"Result of route resolving.\"\"\"\n        return self._match_info\n\n    @property\n    def app(self):\n        \"\"\"Application instance.\"\"\"\n        return self._app\n\n    @property\n    def cookies(self):\n        \"\"\"Return request cookies.\n\n        A read-only dictionary-like object.\n        \"\"\"\n        if self._cookies is None:\n            raw = self.headers.get('COOKIE', '')\n            parsed = http.cookies.SimpleCookie(raw)\n            self._cookies = MultiDict({key: val.value\n                                       for key, val in parsed.items()})\n        return self._cookies\n\n    @property\n    def payload(self):\n        \"\"\"Return raw paiload stream.\"\"\"\n        return self._payload\n\n    @asyncio.coroutine\n    def release(self):\n        \"\"\"Release request.\n\n        Eat unread part of HTTP BODY if present.\n        \"\"\"\n        chunk = yield from self._payload.readany()\n        while chunk is not EOF_MARKER or chunk:\n            chunk = yield from self._payload.readany()\n\n    @asyncio.coroutine\n    def read(self):\n        \"\"\"Read request body if present.\n\n        Returns bytes object with full request content.\n        \"\"\"\n\n        body = bytearray()\n        while True:\n            chunk = yield from self._payload.readany()\n            body.extend(chunk)\n            if chunk is EOF_MARKER:\n                break\n        return bytes(body)\n\n    @asyncio.coroutine\n    def text(self):\n        \"\"\"Return BODY as text using encoding from .charset.\"\"\"\n        bytes_body = yield from self.read()\n        encoding = self.charset or 'utf-8'\n        return bytes_body.decode(encoding)\n\n    @asyncio.coroutine\n    def json(self, *, loader=json.loads):\n        \"\"\"Return BODY as JSON.\"\"\"\n        body = yield from self.text()\n        return loader(body)\n\n    @asyncio.coroutine\n    def POST(self):\n        \"\"\"Return POST parameters.\"\"\"\n        if self._post is not None:\n            return self._post\n        if self.method not in ('POST', 'PUT', 'PATCH'):\n            self._post = MultiDict()\n            return self._post\n        content_type = self.content_type\n        if (content_type not in ('',\n                                 'application/x-www-form-urlencoded',\n                                 'multipart/form-data')):\n            self._post = MultiDict()\n            return self._post\n\n        body = yield from self.read()\n        content_charset = self.charset or 'utf-8'\n\n        environ = {'REQUEST_METHOD': self.method,\n                   'CONTENT_LENGTH': str(len(body)),\n                   'QUERY_STRING': '',\n                   'CONTENT_TYPE': self.headers.get('CONTENT-TYPE')}\n\n        fs = cgi.FieldStorage(fp=io.BytesIO(body),\n                              environ=environ,\n                              keep_blank_values=True,\n                              encoding=content_charset)\n\n        supported_tranfer_encoding = {\n            'base64': binascii.a2b_base64,\n            'quoted-printable': binascii.a2b_qp\n        }\n        out = MutableMultiDict()\n        for field in fs.list or ():\n            charset = field.type_options.get('charset', 'utf-8')\n            transfer_encoding = field.headers.get('Content-Transfer-Encoding',\n                                                  None)\n            if charset == 'utf-8':\n                decode = lambda b: b\n            else:\n                decode = lambda b: b.encode('utf-8').decode(charset)\n            if field.filename:\n                field.filename = decode(field.filename)\n                out.add(field.name, field)\n            else:\n                value = field.value\n                if transfer_encoding in supported_tranfer_encoding:\n                    # binascii accepts bytes\n                    value = value.encode('utf-8')\n                    value = supported_tranfer_encoding[\n                        transfer_encoding](value)\n                    # binascii returns bytes\n                    value = value.decode('utf-8')\n                out.add(field.name, decode(value))\n        self._post = MultiDict(out)\n        return self._post\n\n    @asyncio.coroutine\n    def start_websocket(self):\n        \"\"\"Upgrade connection to websocket.\n\n        Returns (reader, writer) pair.\n        \"\"\"\n\n############################################################\n# HTTP Response classes\n############################################################\n\n\nclass StreamResponse(HeadersMixin):\n\n    def __init__(self, request, *, status=200, reason=None):\n        self._request = request\n        self._headers = CaseInsensitiveMutableMultiDict()\n        self._status = int(status)\n        if reason is None:\n            reason = ResponseImpl.calc_reason(status)\n        self._reason = reason\n        self._cookies = http.cookies.SimpleCookie()\n        self._deleted_cookies = set()\n        self._keep_alive = request.keep_alive\n\n        self._resp_impl = None\n        self._eof_sent = False\n\n    def _copy_cookies(self):\n        for cookie in self._cookies.values():\n            value = cookie.output(header='')[1:]\n            self.headers.add('Set-Cookie', value)\n\n    def _check_sending_started(self):\n        resp = self._request._response\n        if resp is not None:\n            resp = resp()  # dereference weakref\n        if resp is not None:\n            raise RuntimeError((\"Response {!r} already started to send\"\n                                \" data\").format(resp))\n\n    @property\n    def request(self):\n        return self._request\n\n    @property\n    def status(self):\n        return self._status\n\n    @property\n    def reason(self):\n        return self._reason\n\n    @property\n    def keep_alive(self):\n        return self._keep_alive\n\n    def force_close(self):\n        self._keep_alive = False\n\n    @property\n    def headers(self):\n        return self._headers\n\n    @property\n    def cookies(self):\n        return self._cookies\n\n    def set_cookie(self, name, value, *, expires=None,\n                   domain=None, max_age=None, path=None,\n                   secure=None, httponly=None, version=None):\n        \"\"\"Set or update response cookie.\n\n        Sets new cookie or updates existent with new value.\n        Also updates only those params which are not None.\n        \"\"\"\n\n        self._check_sending_started()\n        if name in self._deleted_cookies:\n            self._deleted_cookies.remove(name)\n            self._cookies.pop(name, None)\n\n        self._cookies[name] = value\n        c = self._cookies[name]\n        if expires is not None:\n            c['expires'] = expires\n        if domain is not None:\n            c['domain'] = domain\n        if max_age is not None:\n            c['max-age'] = max_age\n        if path is not None:\n            c['path'] = path\n        if secure is not None:\n            c['secure'] = secure\n        if httponly is not None:\n            c['httponly'] = httponly\n        if version is not None:\n            c['version'] = version\n\n    def del_cookie(self, name, *, domain=None, path=None):\n        \"\"\"Delete cookie.\n\n        Creates new empty expired cookie.\n        \"\"\"\n        # TODO: do we need domain/path here?\n        self._check_sending_started()\n        self._cookies.pop(name, None)\n        self.set_cookie(name, '', max_age=0, domain=domain, path=path)\n        self._deleted_cookies.add(name)\n\n    @property\n    def content_length(self):\n        # Just a placeholder for adding setter\n        return super().content_length\n\n    @content_length.setter\n    def content_length(self, value):\n        self._check_sending_started()\n        if value is not None:\n            value = int(value)\n            # TODO: raise error if chunked enabled\n            self.headers['Content-Length'] = str(value)\n        elif 'Content-Length' in self.headers:\n            del self.headers['Content-Length']\n\n    @property\n    def content_type(self):\n        # Just a placeholder for adding setter\n        return super().content_type\n\n    @content_type.setter\n    def content_type(self, value):\n        self._check_sending_started()\n        self.content_type  # read header values if needed\n        self._content_type = str(value)\n        self._generate_content_type_header()\n\n    @property\n    def charset(self):\n        # Just a placeholder for adding setter\n        return super().charset\n\n    @charset.setter\n    def charset(self, value):\n        self._check_sending_started()\n        ctype = self.content_type  # read header values if needed\n        if ctype == 'application/octet-stream':\n            raise RuntimeError(\"Setting charset for application/octet-stream \"\n                               \"doesn't make sense, setup content_type first\")\n        if value is None:\n            self._content_dict.pop('charset', None)\n        else:\n            self._content_dict['charset'] = str(value)\n        self._generate_content_type_header()\n\n    def _generate_content_type_header(self):\n        params = '; '.join(\"%s=%s\" % i for i in self._content_dict.items())\n        if params:\n            ctype = self._content_type + '; ' + params\n        else:\n            ctype = self._content_type\n        self.headers['Content-Type'] = ctype\n\n    def set_chunked(self, chunk_size, buffered=True):\n        if self.content_length is not None:\n            raise RuntimeError(\n                \"Cannot use chunked encoding with Content-Length set up\")\n\n    def send_headers(self):\n        if self._resp_impl is not None:\n            raise RuntimeError(\"HTTP headers are already sent\")\n\n        self._check_sending_started()\n        self._request._response = weakref.ref(self)\n\n        resp_impl = self._resp_impl = ResponseImpl(\n            self._request._writer,\n            self._status,\n            self._request.version,\n            not self._keep_alive,\n            self._reason)\n\n        self._copy_cookies()\n\n        headers = self.headers.items(getall=True)\n        for key, val in headers:\n            resp_impl.add_header(key, val)\n\n        resp_impl.send_headers()\n\n    def write(self, data):\n        if not isinstance(data, (bytes, bytearray, memoryview)):\n            raise TypeError('data argument must be byte-ish (%r)',\n                            type(data))\n\n        if self._eof_sent:\n            raise RuntimeError(\"Cannot call write() after write_eof()\")\n        if self._resp_impl is None:\n            self.send_headers()\n\n        if data:\n            self._resp_impl.write(data)\n\n    @asyncio.coroutine\n    def write_eof(self):\n        if self._eof_sent:\n            return\n        if self._resp_impl is None:\n            raise RuntimeError(\"No headers has been sent\")\n\n        yield from self._resp_impl.write_eof()\n        self._eof_sent = True\n\n\nclass Response(StreamResponse):\n\n    def __init__(self, request, body=None, *,\n                 status=200, reason=None, headers=None):\n        super().__init__(request, status=status, reason=reason)\n        self.body = body\n        if headers is not None:\n            self.headers.extend(headers)\n\n    @property\n    def body(self):\n        return self._body\n\n    @body.setter\n    def body(self, body):\n        if body is not None and not isinstance(body, bytes):\n            raise TypeError('body argument must be bytes (%r)',\n                            type(body))\n        self._check_sending_started()\n        self._body = body\n        if body is not None:\n            self.content_length = len(body)\n        else:\n            self.content_length = 0\n\n    @asyncio.coroutine\n    def write_eof(self):\n        body = self._body\n        if self._resp_impl is None:\n            self.send_headers()\n        if body is not None:\n            self.write(body)\n        yield from super().write_eof()\n\n############################################################\n# HTTP Exceptions\n############################################################\n\n\nclass HTTPException(Response, Exception):\n\n    # You should set in subclasses:\n    # status = 200\n\n    status_code = None\n\n    def __init__(self, request, *, headers=None, reason=None):\n        Response.__init__(self, request, status=self.status_code,\n                          headers=headers, reason=reason)\n        Exception.__init__(self, self.reason)\n\n\nclass HTTPError(HTTPException):\n    \"\"\"Base class for exceptions with status codes in the 400s and 500s.\"\"\"\n\n\nclass HTTPRedirection(HTTPException):\n    \"\"\"Base class for exceptions with status codes in the 300s.\"\"\"\n\n\nclass HTTPSuccessful(HTTPException):\n    \"\"\"Base class for exceptions with status codes in the 200s.\"\"\"\n\n\nclass HTTPOk(HTTPSuccessful):\n    status_code = 200\n\n\nclass HTTPCreated(HTTPSuccessful):\n    status_code = 201\n\n\nclass HTTPAccepted(HTTPSuccessful):\n    status_code = 202\n\n\nclass HTTPNonAuthoritativeInformation(HTTPSuccessful):\n    status_code = 203\n\n\nclass HTTPNoContent(HTTPSuccessful):\n    status_code = 204\n\n\nclass HTTPResetContent(HTTPSuccessful):\n    status_code = 205\n\n\nclass HTTPPartialContent(HTTPSuccessful):\n    status_code = 206\n\n\n############################################################\n# 3xx redirection\n############################################################\n\n\nclass _HTTPMove(HTTPRedirection):\n\n    def __init__(self, request, location, *,  headers=None, reason=None):\n        if not location:\n            raise ValueError(\"HTTP redirects need a location to redirect to.\")\n        super().__init__(request, headers=headers, reason=reason)\n        self.headers['Location'] = location\n        self.location = location\n\n\nclass HTTPMultipleChoices(_HTTPMove):\n    status_code = 300\n\n\nclass HTTPMovedPermanently(_HTTPMove):\n    status_code = 301\n\n\nclass HTTPFound(_HTTPMove):\n    status_code = 302\n\n\n# This one is safe after a POST (the redirected location will be\n# retrieved with GET):\nclass HTTPSeeOther(_HTTPMove):\n    status_code = 303\n\n\nclass HTTPNotModified(HTTPRedirection):\n    # FIXME: this should include a date or etag header\n    status_code = 304\n\n\nclass HTTPUseProxy(_HTTPMove):\n    # Not a move, but looks a little like one\n    status_code = 305\n\n\nclass HTTPTemporaryRedirect(_HTTPMove):\n    status_code = 307\n\n\n############################################################\n# 4xx client error\n############################################################\n\n\nclass HTTPClientError(HTTPError):\n    pass\n\n\nclass HTTPBadRequest(HTTPClientError):\n    status_code = 400\n\n\nclass HTTPUnauthorized(HTTPClientError):\n    status_code = 401\n\n\nclass HTTPPaymentRequired(HTTPClientError):\n    status_code = 402\n\n\nclass HTTPForbidden(HTTPClientError):\n    status_code = 403\n\n\nclass HTTPNotFound(HTTPClientError):\n    status_code = 404\n\n\nclass HTTPMethodNotAllowed(HTTPClientError):\n    status_code = 405\n\n    def __init__(self, request, method, allowed_methods, *,\n                 headers=None, reason=None):\n        allow = ','.join(sorted(allowed_methods))\n        super().__init__(request, headers=headers, reason=reason)\n        self.headers['Allow'] = allow\n        self.allowed_methods = allowed_methods\n        self.method = method.upper()\n\n\nclass HTTPNotAcceptable(HTTPClientError):\n    status_code = 406\n\n\nclass HTTPProxyAuthenticationRequired(HTTPClientError):\n    status_code = 407\n\n\nclass HTTPRequestTimeout(HTTPClientError):\n    status_code = 408\n\n\nclass HTTPConflict(HTTPClientError):\n    status_code = 409\n\n\nclass HTTPGone(HTTPClientError):\n    status_code = 410\n\n\nclass HTTPLengthRequired(HTTPClientError):\n    status_code = 411\n\n\nclass HTTPPreconditionFailed(HTTPClientError):\n    status_code = 412\n\n\nclass HTTPRequestEntityTooLarge(HTTPClientError):\n    status_code = 413\n\n\nclass HTTPRequestURITooLong(HTTPClientError):\n    status_code = 414\n\n\nclass HTTPUnsupportedMediaType(HTTPClientError):\n    status_code = 415\n\n\nclass HTTPRequestRangeNotSatisfiable(HTTPClientError):\n    status_code = 416\n\n\nclass HTTPExpectationFailed(HTTPClientError):\n    status_code = 417\n\n\n############################################################\n# 5xx Server Error\n############################################################\n#  Response status codes beginning with the digit \"5\" indicate cases in\n#  which the server is aware that it has erred or is incapable of\n#  performing the request. Except when responding to a HEAD request, the\n#  server SHOULD include an entity containing an explanation of the error\n#  situation, and whether it is a temporary or permanent condition. User\n#  agents SHOULD display any included entity to the user. These response\n#  codes are applicable to any request method.\n\n\nclass HTTPServerError(HTTPError):\n    pass\n\n\nclass HTTPInternalServerError(HTTPServerError):\n    status_code = 500\n\n\nclass HTTPNotImplemented(HTTPServerError):\n    status_code = 501\n\n\nclass HTTPBadGateway(HTTPServerError):\n    status_code = 502\n\n\nclass HTTPServiceUnavailable(HTTPServerError):\n    status_code = 503\n\n\nclass HTTPGatewayTimeout(HTTPServerError):\n    status_code = 504\n\n\nclass HTTPVersionNotSupported(HTTPServerError):\n    status_code = 505\n\n\n############################################################\n# UrlDispatcher implementation\n############################################################\n\n\nclass UrlMappingMatchInfo(dict, AbstractMatchInfo):\n\n    def __init__(self, match_dict, entry):\n        super().__init__(match_dict)\n        self._entry = entry\n\n    @property\n    def handler(self):\n        return self._entry.handler\n\n\nEntry = collections.namedtuple('Entry', 'regex method handler')\n\n\nclass UrlDispatcher(AbstractRouter):\n\n    DYN = re.compile(r'^\\{[_a-zA-Z][_a-zA-Z0-9]*\\}$')\n    GOOD = r'[^{}/]+'\n    PLAIN = re.compile('^'+GOOD+'$')\n\n    METHODS = {'POST', 'GET', 'PUT', 'DELETE', 'PATCH', 'HEAD', 'OPTIONS'}\n\n    def __init__(self):\n        super().__init__()\n        self._urls = []\n\n    @asyncio.coroutine\n    def resolve(self, request):\n        path = request.path\n        method = request.method\n        allowed_methods = set()\n        for entry in self._urls:\n            match = entry.regex.match(path)\n            if match is None:\n                continue\n            if entry.method != method:\n                allowed_methods.add(entry.method)\n            else:\n                break\n        else:\n            if allowed_methods:\n                raise HTTPMethodNotAllowed(request, method, allowed_methods)\n            else:\n                raise HTTPNotFound(request)\n\n        matchdict = match.groupdict()\n        return UrlMappingMatchInfo(matchdict, entry)\n\n    def add_route(self, method, path, handler):\n        assert path.startswith('/')\n        assert callable(handler), handler\n        method = method.upper()\n        assert method in self.METHODS, method\n        regexp = []\n        for part in path.split('/'):\n            if not part:\n                continue\n            if self.DYN.match(part):\n                regexp.append('(?P<'+part[1:-1]+'>'+self.GOOD+')')\n            elif self.PLAIN.match(part):\n                regexp.append(part)\n            else:\n                raise ValueError(\"Invalid path '{}'['{}']\".format(path, part))\n        pattern = '/' + '/'.join(regexp)\n        if path.endswith('/') and pattern != '/':\n            pattern += '/'\n        try:\n            compiled = re.compile('^' + pattern + '$')\n        except re.error:\n            raise ValueError(\"Invalid path '{}'\".format(path))\n        self._urls.append(Entry(compiled, method, handler))\n\n\n############################################################\n# Application implementation\n############################################################\n\n\nclass RequestHandler(ServerHttpProtocol):\n\n    def __init__(self, app, **kwargs):\n        super().__init__(**kwargs)\n        self._app = app\n\n    @asyncio.coroutine\n    def handle_request(self, message, payload):\n        request = Request(self._app, message, payload, self.writer)\n        try:\n            match_info = yield from self._app.router.resolve(request)\n\n            request._match_info = match_info\n            handler = match_info.handler\n\n            resp = handler(request)\n            if (asyncio.iscoroutine(resp) or\n                    isinstance(resp, asyncio.Future)):\n                resp = yield from resp\n            if not isinstance(resp, StreamResponse):\n                raise RuntimeError((\"Handler should return response \"\n                                    \"instance, got {!r}\")\n                                   .format(type(resp)))\n        except HTTPException as exc:\n            resp = exc\n\n        yield from resp.write_eof()\n        if resp.keep_alive:\n            # Don't need to read request body if any on closing connection\n            yield from request.release()\n        self.keep_alive(resp.keep_alive)\n\n\nclass Application(dict):\n\n    def __init__(self, loop=None, *, router=None, **kwargs):\n        # TODO: explicitly accept *debug* param\n        if loop is None:\n            loop = asyncio.get_event_loop()\n        self._kwargs = kwargs\n        if router is None:\n            router = UrlDispatcher()\n        self._router = router\n        self._loop = loop\n        self._finish_callbacks = []\n\n    @property\n    def router(self):\n        return self._router\n\n    @property\n    def loop(self):\n        return self._loop\n\n    def make_handler(self):\n        return RequestHandler(self, loop=self._loop, **self._kwargs)\n\n    @asyncio.coroutine\n    def finish(self):\n        for (cb, args, kwargs) in self._finish_callbacks:\n            try:\n                res = cb(*args, **kwargs)\n                if (asyncio.iscoroutine(res) or\n                        isinstance(res, asyncio.Future)):\n                    yield from res\n            except Exception as exc:\n                self._loop.call_exception_handler({\n                    'message': \"Error in finish callback\",\n                    'exception': exc,\n                    'application': self,\n                })\n\n    def register_on_finish(self, cb, *args, **kwargs):\n        self._finish_callbacks.append((cb, args, kwargs))\n",
            "new_file_content": "import asyncio\nimport binascii\nimport collections\nimport cgi\nimport http.cookies\nimport io\nimport json\nimport re\nimport weakref\n\nfrom urllib.parse import urlsplit, parse_qsl, unquote\n\nfrom .abc import AbstractRouter, AbstractMatchInfo\nfrom .multidict import (CaseInsensitiveMultiDict,\n                        CaseInsensitiveMutableMultiDict,\n                        MultiDict,\n                        MutableMultiDict)\nfrom .protocol import Response as ResponseImpl, HttpVersion, HttpVersion11\nfrom .server import ServerHttpProtocol\nfrom .streams import EOF_MARKER\n\n\n__all__ = [\n    'Application',\n    'HttpVersion',\n    'Request',\n    'StreamResponse',\n    'Response',\n    'UrlDispatcher',\n    'UrlMappingMatchInfo',\n    'HTTPException',\n    'HTTPError',\n    'HTTPRedirection',\n    'HTTPSuccessful',\n    'HTTPOk',\n    'HTTPCreated',\n    'HTTPAccepted',\n    'HTTPNonAuthoritativeInformation',\n    'HTTPNoContent',\n    'HTTPResetContent',\n    'HTTPPartialContent',\n    'HTTPMultipleChoices',\n    'HTTPMovedPermanently',\n    'HTTPFound',\n    'HTTPSeeOther',\n    'HTTPNotModified',\n    'HTTPUseProxy',\n    'HTTPTemporaryRedirect',\n    'HTTPClientError',\n    'HTTPBadRequest',\n    'HTTPUnauthorized',\n    'HTTPPaymentRequired',\n    'HTTPForbidden',\n    'HTTPNotFound',\n    'HTTPMethodNotAllowed',\n    'HTTPNotAcceptable',\n    'HTTPProxyAuthenticationRequired',\n    'HTTPRequestTimeout',\n    'HTTPConflict',\n    'HTTPGone',\n    'HTTPLengthRequired',\n    'HTTPPreconditionFailed',\n    'HTTPRequestEntityTooLarge',\n    'HTTPRequestURITooLong',\n    'HTTPUnsupportedMediaType',\n    'HTTPRequestRangeNotSatisfiable',\n    'HTTPExpectationFailed',\n    'HTTPServerError',\n    'HTTPInternalServerError',\n    'HTTPNotImplemented',\n    'HTTPBadGateway',\n    'HTTPServiceUnavailable',\n    'HTTPGatewayTimeout',\n    'HTTPVersionNotSupported',\n    ]\n\n\nsentinel = object()\n\n\nclass HeadersMixin:\n\n    _content_type = None\n    _content_dict = None\n    _stored_content_type = sentinel\n\n    def _parse_content_type(self, raw):\n        self._stored_content_type = raw\n        if raw is None:\n            # default value according to RFC 2616\n            self._content_type = 'application/octet-stream'\n            self._content_dict = {}\n        else:\n            self._content_type, self._content_dict = cgi.parse_header(raw)\n\n    @property\n    def content_type(self):\n        \"\"\"The value of content part for Content-Type HTTP header.\"\"\"\n        raw = self.headers.get('Content-Type')\n        if self._stored_content_type != raw:\n            self._parse_content_type(raw)\n        return self._content_type\n\n    @property\n    def charset(self):\n        \"\"\"The value of charset part for Content-Type HTTP header.\"\"\"\n        # Assumes that charset is UTF8 if not specified\n        raw = self.headers.get('Content-Type')\n        if self._stored_content_type != raw:\n            self._parse_content_type(raw)\n        return self._content_dict.get('charset')\n\n    @property\n    def content_length(self):\n        \"\"\"The value of Content-Length HTTP header.\"\"\"\n        l = self.headers.get('Content-Length')\n        if l is None:\n            return None\n        else:\n            return int(l)\n\n\n############################################################\n# HTTP Request\n############################################################\n\n\nclass Request(HeadersMixin):\n\n    def __init__(self, app, message, payload, writer):\n        self._app = app\n        self._version = message.version\n        self._writer = writer\n        self._method = message.method\n        self._host = message.headers.get('HOST')\n        path = unquote(message.path)\n        self._path_qs = path\n        res = urlsplit(path)\n        self._path = res.path\n        self._query_string = res.query\n        self._get = None\n        self._post = None\n        self._headers = CaseInsensitiveMultiDict._from_uppercase_multidict(\n            message.headers)\n\n        if self._version < HttpVersion11:\n            self._keep_alive = False\n        elif message.should_close:\n            self._keep_alive = False\n        else:\n            self._keep_alive = True\n\n        # matchdict, route_name, handler\n        # or information about traversal lookup\n        self._match_info = None  # initialized after route resolving\n\n        self._payload = payload\n        self._response = None\n        self._cookies = None\n\n    @property\n    def method(self):\n        \"\"\"Read only property for getting HTTP method.\n\n        The value is upper-cased str like 'GET', 'POST', 'PUT' etc.\n        \"\"\"\n        return self._method\n\n    @property\n    def version(self):\n        \"\"\"Read only property for getting HTTP version of request.\n\n        Returns aiohttp.protocol.HttpVersion instance.\n        \"\"\"\n        return self._version\n\n    @property\n    def host(self):\n        \"\"\"Read only property for getting *HOST* header of request.\n\n        Returns str or None if HTTP request has no HOST header.\n        \"\"\"\n        return self._host\n\n    @property\n    def path_qs(self):\n        \"\"\"The URL including PATH_INFO and the query string.\n\n        E.g, /app/blog?id=10\n        \"\"\"\n        return self._path_qs\n\n    @property\n    def path(self):\n        \"\"\"The URL including *PATH INFO* without the host or scheme.\n\n        E.g., ``/app/blog``\n        \"\"\"\n        return self._path\n\n    @property\n    def query_string(self):\n        \"\"\"The query string in the URL.\n\n        E.g., id=10\n        \"\"\"\n        return self._query_string\n\n    @property\n    def GET(self):\n        \"\"\"A multidict with all the variables in the query string.\n\n        Lazy property.\n        \"\"\"\n        if self._get is None:\n            self._get = MultiDict(parse_qsl(self._query_string))\n        return self._get\n\n    @property\n    def headers(self):\n        \"\"\"A case-insensitive multidict with all headers.\n\n        Lazy property.\n        \"\"\"\n        return self._headers\n\n    @property\n    def keep_alive(self):\n        \"\"\"Is keepalive enabled by client?\"\"\"\n        return self._keep_alive\n\n    @property\n    def match_info(self):\n        \"\"\"Result of route resolving.\"\"\"\n        return self._match_info\n\n    @property\n    def app(self):\n        \"\"\"Application instance.\"\"\"\n        return self._app\n\n    @property\n    def cookies(self):\n        \"\"\"Return request cookies.\n\n        A read-only dictionary-like object.\n        \"\"\"\n        if self._cookies is None:\n            raw = self.headers.get('COOKIE', '')\n            parsed = http.cookies.SimpleCookie(raw)\n            self._cookies = MultiDict({key: val.value\n                                       for key, val in parsed.items()})\n        return self._cookies\n\n    @property\n    def payload(self):\n        \"\"\"Return raw paiload stream.\"\"\"\n        return self._payload\n\n    @asyncio.coroutine\n    def release(self):\n        \"\"\"Release request.\n\n        Eat unread part of HTTP BODY if present.\n        \"\"\"\n        chunk = yield from self._payload.readany()\n        while chunk is not EOF_MARKER or chunk:\n            chunk = yield from self._payload.readany()\n\n    @asyncio.coroutine\n    def read(self):\n        \"\"\"Read request body if present.\n\n        Returns bytes object with full request content.\n        \"\"\"\n\n        body = bytearray()\n        while True:\n            chunk = yield from self._payload.readany()\n            body.extend(chunk)\n            if chunk is EOF_MARKER:\n                break\n        return bytes(body)\n\n    @asyncio.coroutine\n    def text(self):\n        \"\"\"Return BODY as text using encoding from .charset.\"\"\"\n        bytes_body = yield from self.read()\n        encoding = self.charset or 'utf-8'\n        return bytes_body.decode(encoding)\n\n    @asyncio.coroutine\n    def json(self, *, loader=json.loads):\n        \"\"\"Return BODY as JSON.\"\"\"\n        body = yield from self.text()\n        return loader(body)\n\n    @asyncio.coroutine\n    def POST(self):\n        \"\"\"Return POST parameters.\"\"\"\n        if self._post is not None:\n            return self._post\n        if self.method not in ('POST', 'PUT', 'PATCH'):\n            self._post = MultiDict()\n            return self._post\n        content_type = self.content_type\n        if (content_type not in ('',\n                                 'application/x-www-form-urlencoded',\n                                 'multipart/form-data')):\n            self._post = MultiDict()\n            return self._post\n\n        body = yield from self.read()\n        content_charset = self.charset or 'utf-8'\n\n        environ = {'REQUEST_METHOD': self.method,\n                   'CONTENT_LENGTH': str(len(body)),\n                   'QUERY_STRING': '',\n                   'CONTENT_TYPE': self.headers.get('CONTENT-TYPE')}\n\n        fs = cgi.FieldStorage(fp=io.BytesIO(body),\n                              environ=environ,\n                              keep_blank_values=True,\n                              encoding=content_charset)\n\n        supported_tranfer_encoding = {\n            'base64': binascii.a2b_base64,\n            'quoted-printable': binascii.a2b_qp\n        }\n        out = MutableMultiDict()\n        for field in fs.list or ():\n            charset = field.type_options.get('charset', 'utf-8')\n            transfer_encoding = field.headers.get('Content-Transfer-Encoding',\n                                                  None)\n            if charset == 'utf-8':\n                decode = lambda b: b\n            else:\n                decode = lambda b: b.encode('utf-8').decode(charset)\n            if field.filename:\n                field.filename = decode(field.filename)\n                out.add(field.name, field)\n            else:\n                value = field.value\n                if transfer_encoding in supported_tranfer_encoding:\n                    # binascii accepts bytes\n                    value = value.encode('utf-8')\n                    value = supported_tranfer_encoding[\n                        transfer_encoding](value)\n                    # binascii returns bytes\n                    value = value.decode('utf-8')\n                out.add(field.name, decode(value))\n        self._post = MultiDict(out)\n        return self._post\n\n    @asyncio.coroutine\n    def start_websocket(self):\n        \"\"\"Upgrade connection to websocket.\n\n        Returns (reader, writer) pair.\n        \"\"\"\n\n############################################################\n# HTTP Response classes\n############################################################\n\n\nclass StreamResponse(HeadersMixin):\n\n    def __init__(self, request, *, status=200, reason=None):\n        self._request = request\n        self._headers = CaseInsensitiveMutableMultiDict()\n        self._status = int(status)\n        if reason is None:\n            reason = ResponseImpl.calc_reason(status)\n        self._reason = reason\n        self._cookies = http.cookies.SimpleCookie()\n        self._deleted_cookies = set()\n        self._keep_alive = request.keep_alive\n\n        self._resp_impl = None\n        self._eof_sent = False\n\n    def _copy_cookies(self):\n        for cookie in self._cookies.values():\n            value = cookie.output(header='')[1:]\n            self.headers.add('Set-Cookie', value)\n\n    def _check_sending_started(self):\n        resp = self._request._response\n        if resp is not None:\n            resp = resp()  # dereference weakref\n        if resp is not None:\n            raise RuntimeError((\"Response {!r} already started to send\"\n                                \" data\").format(resp))\n\n    @property\n    def request(self):\n        return self._request\n\n    @property\n    def status(self):\n        return self._status\n\n    @property\n    def reason(self):\n        return self._reason\n\n    @property\n    def keep_alive(self):\n        return self._keep_alive\n\n    def force_close(self):\n        self._keep_alive = False\n\n    @property\n    def headers(self):\n        return self._headers\n\n    @property\n    def cookies(self):\n        return self._cookies\n\n    def set_cookie(self, name, value, *, expires=None,\n                   domain=None, max_age=None, path=None,\n                   secure=None, httponly=None, version=None):\n        \"\"\"Set or update response cookie.\n\n        Sets new cookie or updates existent with new value.\n        Also updates only those params which are not None.\n        \"\"\"\n\n        self._check_sending_started()\n        if name in self._deleted_cookies:\n            self._deleted_cookies.remove(name)\n            self._cookies.pop(name, None)\n\n        self._cookies[name] = value\n        c = self._cookies[name]\n        if expires is not None:\n            c['expires'] = expires\n        if domain is not None:\n            c['domain'] = domain\n        if max_age is not None:\n            c['max-age'] = max_age\n        if path is not None:\n            c['path'] = path\n        if secure is not None:\n            c['secure'] = secure\n        if httponly is not None:\n            c['httponly'] = httponly\n        if version is not None:\n            c['version'] = version\n\n    def del_cookie(self, name, *, domain=None, path=None):\n        \"\"\"Delete cookie.\n\n        Creates new empty expired cookie.\n        \"\"\"\n        # TODO: do we need domain/path here?\n        self._check_sending_started()\n        self._cookies.pop(name, None)\n        self.set_cookie(name, '', max_age=0, domain=domain, path=path)\n        self._deleted_cookies.add(name)\n\n    @property\n    def content_length(self):\n        # Just a placeholder for adding setter\n        return super().content_length\n\n    @content_length.setter\n    def content_length(self, value):\n        self._check_sending_started()\n        if value is not None:\n            value = int(value)\n            # TODO: raise error if chunked enabled\n            self.headers['Content-Length'] = str(value)\n        elif 'Content-Length' in self.headers:\n            del self.headers['Content-Length']\n\n    @property\n    def content_type(self):\n        # Just a placeholder for adding setter\n        return super().content_type\n\n    @content_type.setter\n    def content_type(self, value):\n        self._check_sending_started()\n        self.content_type  # read header values if needed\n        self._content_type = str(value)\n        self._generate_content_type_header()\n\n    @property\n    def charset(self):\n        # Just a placeholder for adding setter\n        return super().charset\n\n    @charset.setter\n    def charset(self, value):\n        self._check_sending_started()\n        ctype = self.content_type  # read header values if needed\n        if ctype == 'application/octet-stream':\n            raise RuntimeError(\"Setting charset for application/octet-stream \"\n                               \"doesn't make sense, setup content_type first\")\n        if value is None:\n            self._content_dict.pop('charset', None)\n        else:\n            self._content_dict['charset'] = str(value)\n        self._generate_content_type_header()\n\n    def _generate_content_type_header(self):\n        params = '; '.join(\"%s=%s\" % i for i in self._content_dict.items())\n        if params:\n            ctype = self._content_type + '; ' + params\n        else:\n            ctype = self._content_type\n        self.headers['Content-Type'] = ctype\n\n    def set_chunked(self, chunk_size, buffered=True):\n        if self.content_length is not None:\n            raise RuntimeError(\n                \"Cannot use chunked encoding with Content-Length set up\")\n\n    def send_headers(self):\n        if self._resp_impl is not None:\n            raise RuntimeError(\"HTTP headers are already sent\")\n\n        self._check_sending_started()\n        self._request._response = weakref.ref(self)\n\n        resp_impl = self._resp_impl = ResponseImpl(\n            self._request._writer,\n            self._status,\n            self._request.version,\n            not self._keep_alive,\n            self._reason)\n\n        self._copy_cookies()\n\n        headers = self.headers.items(getall=True)\n        for key, val in headers:\n            resp_impl.add_header(key, val)\n\n        resp_impl.send_headers()\n\n    def write(self, data):\n        if not isinstance(data, (bytes, bytearray, memoryview)):\n            raise TypeError('data argument must be byte-ish (%r)',\n                            type(data))\n\n        if self._eof_sent:\n            raise RuntimeError(\"Cannot call write() after write_eof()\")\n        if self._resp_impl is None:\n            self.send_headers()\n\n        if data:\n            self._resp_impl.write(data)\n\n    @asyncio.coroutine\n    def write_eof(self):\n        if self._eof_sent:\n            return\n        if self._resp_impl is None:\n            raise RuntimeError(\"No headers has been sent\")\n\n        yield from self._resp_impl.write_eof()\n        self._eof_sent = True\n\n\nclass Response(StreamResponse):\n\n    def __init__(self, request, body=None, *,\n                 status=200, reason=None, headers=None):\n        super().__init__(request, status=status, reason=reason)\n        self.body = body\n        if headers is not None:\n            self.headers.extend(headers)\n\n    @property\n    def body(self):\n        return self._body\n\n    @body.setter\n    def body(self, body):\n        if body is not None and not isinstance(body, bytes):\n            raise TypeError('body argument must be bytes (%r)',\n                            type(body))\n        self._check_sending_started()\n        self._body = body\n        if body is not None:\n            self.content_length = len(body)\n        else:\n            self.content_length = 0\n\n    @asyncio.coroutine\n    def write_eof(self):\n        body = self._body\n        if self._resp_impl is None:\n            self.send_headers()\n        if body is not None:\n            self.write(body)\n        yield from super().write_eof()\n\n############################################################\n# HTTP Exceptions\n############################################################\n\n\nclass HTTPException(Response, Exception):\n\n    # You should set in subclasses:\n    # status = 200\n\n    status_code = None\n\n    def __init__(self, request, *, headers=None, reason=None):\n        Response.__init__(self, request, status=self.status_code,\n                          headers=headers, reason=reason)\n        Exception.__init__(self, self.reason)\n\n\nclass HTTPError(HTTPException):\n    \"\"\"Base class for exceptions with status codes in the 400s and 500s.\"\"\"\n\n\nclass HTTPRedirection(HTTPException):\n    \"\"\"Base class for exceptions with status codes in the 300s.\"\"\"\n\n\nclass HTTPSuccessful(HTTPException):\n    \"\"\"Base class for exceptions with status codes in the 200s.\"\"\"\n\n\nclass HTTPOk(HTTPSuccessful):\n    status_code = 200\n\n\nclass HTTPCreated(HTTPSuccessful):\n    status_code = 201\n\n\nclass HTTPAccepted(HTTPSuccessful):\n    status_code = 202\n\n\nclass HTTPNonAuthoritativeInformation(HTTPSuccessful):\n    status_code = 203\n\n\nclass HTTPNoContent(HTTPSuccessful):\n    status_code = 204\n\n\nclass HTTPResetContent(HTTPSuccessful):\n    status_code = 205\n\n\nclass HTTPPartialContent(HTTPSuccessful):\n    status_code = 206\n\n\n############################################################\n# 3xx redirection\n############################################################\n\n\nclass _HTTPMove(HTTPRedirection):\n\n    def __init__(self, request, location, *,  headers=None, reason=None):\n        if not location:\n            raise ValueError(\"HTTP redirects need a location to redirect to.\")\n        super().__init__(request, headers=headers, reason=reason)\n        self.headers['Location'] = location\n        self.location = location\n\n\nclass HTTPMultipleChoices(_HTTPMove):\n    status_code = 300\n\n\nclass HTTPMovedPermanently(_HTTPMove):\n    status_code = 301\n\n\nclass HTTPFound(_HTTPMove):\n    status_code = 302\n\n\n# This one is safe after a POST (the redirected location will be\n# retrieved with GET):\nclass HTTPSeeOther(_HTTPMove):\n    status_code = 303\n\n\nclass HTTPNotModified(HTTPRedirection):\n    # FIXME: this should include a date or etag header\n    status_code = 304\n\n\nclass HTTPUseProxy(_HTTPMove):\n    # Not a move, but looks a little like one\n    status_code = 305\n\n\nclass HTTPTemporaryRedirect(_HTTPMove):\n    status_code = 307\n\n\n############################################################\n# 4xx client error\n############################################################\n\n\nclass HTTPClientError(HTTPError):\n    pass\n\n\nclass HTTPBadRequest(HTTPClientError):\n    status_code = 400\n\n\nclass HTTPUnauthorized(HTTPClientError):\n    status_code = 401\n\n\nclass HTTPPaymentRequired(HTTPClientError):\n    status_code = 402\n\n\nclass HTTPForbidden(HTTPClientError):\n    status_code = 403\n\n\nclass HTTPNotFound(HTTPClientError):\n    status_code = 404\n\n\nclass HTTPMethodNotAllowed(HTTPClientError):\n    status_code = 405\n\n    def __init__(self, request, method, allowed_methods, *,\n                 headers=None, reason=None):\n        allow = ','.join(sorted(allowed_methods))\n        super().__init__(request, headers=headers, reason=reason)\n        self.headers['Allow'] = allow\n        self.allowed_methods = allowed_methods\n        self.method = method.upper()\n\n\nclass HTTPNotAcceptable(HTTPClientError):\n    status_code = 406\n\n\nclass HTTPProxyAuthenticationRequired(HTTPClientError):\n    status_code = 407\n\n\nclass HTTPRequestTimeout(HTTPClientError):\n    status_code = 408\n\n\nclass HTTPConflict(HTTPClientError):\n    status_code = 409\n\n\nclass HTTPGone(HTTPClientError):\n    status_code = 410\n\n\nclass HTTPLengthRequired(HTTPClientError):\n    status_code = 411\n\n\nclass HTTPPreconditionFailed(HTTPClientError):\n    status_code = 412\n\n\nclass HTTPRequestEntityTooLarge(HTTPClientError):\n    status_code = 413\n\n\nclass HTTPRequestURITooLong(HTTPClientError):\n    status_code = 414\n\n\nclass HTTPUnsupportedMediaType(HTTPClientError):\n    status_code = 415\n\n\nclass HTTPRequestRangeNotSatisfiable(HTTPClientError):\n    status_code = 416\n\n\nclass HTTPExpectationFailed(HTTPClientError):\n    status_code = 417\n\n\n############################################################\n# 5xx Server Error\n############################################################\n#  Response status codes beginning with the digit \"5\" indicate cases in\n#  which the server is aware that it has erred or is incapable of\n#  performing the request. Except when responding to a HEAD request, the\n#  server SHOULD include an entity containing an explanation of the error\n#  situation, and whether it is a temporary or permanent condition. User\n#  agents SHOULD display any included entity to the user. These response\n#  codes are applicable to any request method.\n\n\nclass HTTPServerError(HTTPError):\n    pass\n\n\nclass HTTPInternalServerError(HTTPServerError):\n    status_code = 500\n\n\nclass HTTPNotImplemented(HTTPServerError):\n    status_code = 501\n\n\nclass HTTPBadGateway(HTTPServerError):\n    status_code = 502\n\n\nclass HTTPServiceUnavailable(HTTPServerError):\n    status_code = 503\n\n\nclass HTTPGatewayTimeout(HTTPServerError):\n    status_code = 504\n\n\nclass HTTPVersionNotSupported(HTTPServerError):\n    status_code = 505\n\n\n############################################################\n# UrlDispatcher implementation\n############################################################\n\n\nclass UrlMappingMatchInfo(dict, AbstractMatchInfo):\n\n    def __init__(self, match_dict, entry):\n        super().__init__(match_dict)\n        self._entry = entry\n\n    @property\n    def handler(self):\n        return self._entry.handler\n\n\nEntry = collections.namedtuple('Entry', 'regex method handler')\n\n\nclass UrlDispatcher(AbstractRouter):\n\n    DYN = re.compile(r'^\\{[_a-zA-Z][_a-zA-Z0-9]*\\}$')\n    GOOD = r'[^{}/]+'\n    PLAIN = re.compile('^'+GOOD+'$')\n\n    METHODS = {'POST', 'GET', 'PUT', 'DELETE', 'PATCH', 'HEAD', 'OPTIONS'}\n\n    def __init__(self):\n        super().__init__()\n        self._urls = []\n\n    @asyncio.coroutine\n    def resolve(self, request):\n        path = request.path\n        method = request.method\n        allowed_methods = set()\n        for entry in self._urls:\n            match = entry.regex.match(path)\n            if match is None:\n                continue\n            if entry.method != method:\n                allowed_methods.add(entry.method)\n            else:\n                break\n        else:\n            if allowed_methods:\n                raise HTTPMethodNotAllowed(request, method, allowed_methods)\n            else:\n                raise HTTPNotFound(request)\n\n        matchdict = match.groupdict()\n        return UrlMappingMatchInfo(matchdict, entry)\n\n    def add_route(self, method, path, handler):\n        assert path.startswith('/')\n        assert callable(handler), handler\n        method = method.upper()\n        assert method in self.METHODS, method\n        regexp = []\n        for part in path.split('/'):\n            if not part:\n                continue\n            if self.DYN.match(part):\n                regexp.append('(?P<'+part[1:-1]+'>'+self.GOOD+')')\n            elif self.PLAIN.match(part):\n                regexp.append(re.escape(part))\n            else:\n                raise ValueError(\"Invalid path '{}'['{}']\".format(path, part))\n        pattern = '/' + '/'.join(regexp)\n        if path.endswith('/') and pattern != '/':\n            pattern += '/'\n        try:\n            compiled = re.compile('^' + pattern + '$')\n        except re.error:\n            raise ValueError(\"Invalid path '{}'\".format(path))\n        self._urls.append(Entry(compiled, method, handler))\n\n\n############################################################\n# Application implementation\n############################################################\n\n\nclass RequestHandler(ServerHttpProtocol):\n\n    def __init__(self, app, **kwargs):\n        super().__init__(**kwargs)\n        self._app = app\n\n    @asyncio.coroutine\n    def handle_request(self, message, payload):\n        request = Request(self._app, message, payload, self.writer)\n        try:\n            match_info = yield from self._app.router.resolve(request)\n\n            request._match_info = match_info\n            handler = match_info.handler\n\n            resp = handler(request)\n            if (asyncio.iscoroutine(resp) or\n                    isinstance(resp, asyncio.Future)):\n                resp = yield from resp\n            if not isinstance(resp, StreamResponse):\n                raise RuntimeError((\"Handler should return response \"\n                                    \"instance, got {!r}\")\n                                   .format(type(resp)))\n        except HTTPException as exc:\n            resp = exc\n\n        yield from resp.write_eof()\n        if resp.keep_alive:\n            # Don't need to read request body if any on closing connection\n            yield from request.release()\n        self.keep_alive(resp.keep_alive)\n\n\nclass Application(dict):\n\n    def __init__(self, loop=None, *, router=None, **kwargs):\n        # TODO: explicitly accept *debug* param\n        if loop is None:\n            loop = asyncio.get_event_loop()\n        self._kwargs = kwargs\n        if router is None:\n            router = UrlDispatcher()\n        self._router = router\n        self._loop = loop\n        self._finish_callbacks = []\n\n    @property\n    def router(self):\n        return self._router\n\n    @property\n    def loop(self):\n        return self._loop\n\n    def make_handler(self):\n        return RequestHandler(self, loop=self._loop, **self._kwargs)\n\n    @asyncio.coroutine\n    def finish(self):\n        for (cb, args, kwargs) in self._finish_callbacks:\n            try:\n                res = cb(*args, **kwargs)\n                if (asyncio.iscoroutine(res) or\n                        isinstance(res, asyncio.Future)):\n                    yield from res\n            except Exception as exc:\n                self._loop.call_exception_handler({\n                    'message': \"Error in finish callback\",\n                    'exception': exc,\n                    'application': self,\n                })\n\n    def register_on_finish(self, cb, *args, **kwargs):\n        self._finish_callbacks.append((cb, args, kwargs))\n",
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                            {
                                "content": "            if self.DYN.match(part):",
                                "type": "context"
                            },
                            {
                                "content": "                regexp.append('(?P<'+part[1:-1]+'>'+self.GOOD+')')",
                                "type": "context"
                            },
                            {
                                "content": "            elif self.PLAIN.match(part):",
                                "type": "context"
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                                "type": "context"
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                            {
                                "content": "                raise ValueError(\"Invalid path '{}'['{}']\".format(path, part))",
                                "type": "context"
                            },
                            {
                                "content": "        pattern = '/' + '/'.join(regexp)",
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                    "modified_entities": [
                        {
                            "file_name": "aiohttp/web.py",
                            "type": "method",
                            "name": "UrlDispatcher.add_route",
                            "content": "class UrlDispatcher(AbstractRouter):\n\n    DYN = re.compile(r'^\\{[_a-zA-Z][_a-zA-Z0-9]*\\}$')\n    GOOD = r'[^{}/]+'\n    PLAIN = re.compile('^'+GOOD+'$')\n\n    METHODS = {'POST', 'GET', 'PUT', 'DELETE', 'PATCH', 'HEAD', 'OPTIONS'}\n\n    def __init__(self):\n        super().__init__()\n        self._urls = []\n\n    @asyncio.coroutine\n    def resolve(self, request):\n        path = request.path\n        method = request.method\n        allowed_methods = set()\n        for entry in self._urls:\n            match = entry.regex.match(path)\n            if match is None:\n                continue\n            if entry.method != method:\n                allowed_methods.add(entry.method)\n            else:\n                break\n        else:\n            if allowed_methods:\n                raise HTTPMethodNotAllowed(request, method, allowed_methods)\n            else:\n                raise HTTPNotFound(request)\n\n        matchdict = match.groupdict()\n        return UrlMappingMatchInfo(matchdict, entry)\n\n    def add_route(self, method, path, handler):\n        assert path.startswith('/')\n        assert callable(handler), handler\n        method = method.upper()\n        assert method in self.METHODS, method\n        regexp = []\n        for part in path.split('/'):\n            if not part:\n                continue\n            if self.DYN.match(part):\n                regexp.append('(?P<'+part[1:-1]+'>'+self.GOOD+')')\n            elif self.PLAIN.match(part):\n                regexp.append(part)\n            else:\n                raise ValueError(\"Invalid path '{}'['{}']\".format(path, part))\n        pattern = '/' + '/'.join(regexp)\n        if path.endswith('/') and pattern != '/':\n            pattern += '/'\n        try:\n            compiled = re.compile('^' + pattern + '$')\n        except re.error:\n            raise ValueError(\"Invalid path '{}'\".format(path))\n        self._urls.append(Entry(compiled, method, handler))",
                            "ast_type_str": "ClassDef",
                            "start_lineno": 890,
                            "end_lineno": 912,
                            "parent": {
                                "file_name": "aiohttp/web.py",
                                "type": "class",
                                "name": "UrlDispatcher",
                                "content": "class UrlDispatcher(AbstractRouter):\n\n    DYN = re.compile(r'^\\{[_a-zA-Z][_a-zA-Z0-9]*\\}$')\n    GOOD = r'[^{}/]+'\n    PLAIN = re.compile('^'+GOOD+'$')\n\n    METHODS = {'POST', 'GET', 'PUT', 'DELETE', 'PATCH', 'HEAD', 'OPTIONS'}\n\n    def __init__(self):\n        super().__init__()\n        self._urls = []\n\n    @asyncio.coroutine\n    def resolve(self, request):\n        path = request.path\n        method = request.method\n        allowed_methods = set()\n        for entry in self._urls:\n            match = entry.regex.match(path)\n            if match is None:\n                continue\n            if entry.method != method:\n                allowed_methods.add(entry.method)\n            else:\n                break\n        else:\n            if allowed_methods:\n                raise HTTPMethodNotAllowed(request, method, allowed_methods)\n            else:\n                raise HTTPNotFound(request)\n\n        matchdict = match.groupdict()\n        return UrlMappingMatchInfo(matchdict, entry)\n\n    def add_route(self, method, path, handler):\n        assert path.startswith('/')\n        assert callable(handler), handler\n        method = method.upper()\n        assert method in self.METHODS, method\n        regexp = []\n        for part in path.split('/'):\n            if not part:\n                continue\n            if self.DYN.match(part):\n                regexp.append('(?P<'+part[1:-1]+'>'+self.GOOD+')')\n            elif self.PLAIN.match(part):\n                regexp.append(part)\n            else:\n                raise ValueError(\"Invalid path '{}'['{}']\".format(path, part))\n        pattern = '/' + '/'.join(regexp)\n        if path.endswith('/') and pattern != '/':\n            pattern += '/'\n        try:\n            compiled = re.compile('^' + pattern + '$')\n        except re.error:\n            raise ValueError(\"Invalid path '{}'\".format(path))\n        self._urls.append(Entry(compiled, method, handler))",
                                "ast_type_str": "ClassDef",
                                "start_lineno": 856,
                                "end_lineno": 912,
                                "parent": null
                            }
                        },
                        {
                            "file_name": "aiohttp/web.py",
                            "type": "class",
                            "name": "UrlDispatcher",
                            "content": "class UrlDispatcher(AbstractRouter):\n\n    DYN = re.compile(r'^\\{[_a-zA-Z][_a-zA-Z0-9]*\\}$')\n    GOOD = r'[^{}/]+'\n    PLAIN = re.compile('^'+GOOD+'$')\n\n    METHODS = {'POST', 'GET', 'PUT', 'DELETE', 'PATCH', 'HEAD', 'OPTIONS'}\n\n    def __init__(self):\n        super().__init__()\n        self._urls = []\n\n    @asyncio.coroutine\n    def resolve(self, request):\n        path = request.path\n        method = request.method\n        allowed_methods = set()\n        for entry in self._urls:\n            match = entry.regex.match(path)\n            if match is None:\n                continue\n            if entry.method != method:\n                allowed_methods.add(entry.method)\n            else:\n                break\n        else:\n            if allowed_methods:\n                raise HTTPMethodNotAllowed(request, method, allowed_methods)\n            else:\n                raise HTTPNotFound(request)\n\n        matchdict = match.groupdict()\n        return UrlMappingMatchInfo(matchdict, entry)\n\n    def add_route(self, method, path, handler):\n        assert path.startswith('/')\n        assert callable(handler), handler\n        method = method.upper()\n        assert method in self.METHODS, method\n        regexp = []\n        for part in path.split('/'):\n            if not part:\n                continue\n            if self.DYN.match(part):\n                regexp.append('(?P<'+part[1:-1]+'>'+self.GOOD+')')\n            elif self.PLAIN.match(part):\n                regexp.append(part)\n            else:\n                raise ValueError(\"Invalid path '{}'['{}']\".format(path, part))\n        pattern = '/' + '/'.join(regexp)\n        if path.endswith('/') and pattern != '/':\n            pattern += '/'\n        try:\n            compiled = re.compile('^' + pattern + '$')\n        except re.error:\n            raise ValueError(\"Invalid path '{}'\".format(path))\n        self._urls.append(Entry(compiled, method, handler))",
                            "ast_type_str": "ClassDef",
                            "start_lineno": 856,
                            "end_lineno": 912,
                            "parent": null
                        }
                    ],
                    "added_entities": [],
                    "deleted_entities": []
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        },
        {
            "old_file_content": "import asyncio\nimport unittest\nfrom unittest import mock\nfrom aiohttp.web import (UrlDispatcher, Request, Response,\n                         HTTPMethodNotAllowed, HTTPNotFound)\nfrom aiohttp.multidict import MultiDict\nfrom aiohttp.protocol import HttpVersion, RawRequestMessage\n\n\nclass TestUrlDispatcher(unittest.TestCase):\n\n    def setUp(self):\n        self.loop = asyncio.new_event_loop()\n        asyncio.set_event_loop(None)\n        self.router = UrlDispatcher()\n\n    def tearDown(self):\n        self.loop.close()\n\n    def make_request(self, method, path, headers=MultiDict(), *,\n                     version=HttpVersion(1, 1), closing=False):\n        self.app = mock.Mock()\n        message = RawRequestMessage(method, path, version, headers, closing,\n                                    False)\n        self.payload = mock.Mock()\n        self.writer = mock.Mock()\n        req = Request(self.app, message, self.payload, self.writer)\n        return req\n\n    def test_add_route_root(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/', handler)\n        req = self.make_request('GET', '/')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual(0, len(info))\n        self.assertIs(handler, info.handler)\n\n    def test_add_route_simple(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/handler/to/path', handler)\n        req = self.make_request('GET', '/handler/to/path')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual(0, len(info))\n        self.assertIs(handler, info.handler)\n\n    def test_add_with_matchdict(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/handler/{to}', handler)\n        req = self.make_request('GET', '/handler/tail')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual({'to': 'tail'}, info)\n        self.assertIs(handler, info.handler)\n\n    def test_add_with_tailing_slash(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/handler/to/path/', handler)\n        req = self.make_request('GET', '/handler/to/path/')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual({}, info)\n        self.assertIs(handler, info.handler)\n\n    def test_add_invalid_path(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('GET', '/{/', lambda req: None)\n\n    def test_add_url_invalid1(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id', lambda: None)\n\n    def test_add_url_invalid2(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id{}}', lambda: None)\n\n    def test_add_url_invalid3(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id{}', lambda: None)\n\n    def test_add_url_invalid4(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id\"}', lambda: None)\n\n    def test_add_url_invalid5(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post\"{id}', lambda: None)\n\n    def test_match_second_result_in_table(self):\n        handler1 = lambda req: Response(req)\n        handler2 = lambda req: Response(req)\n        self.router.add_route('GET', '/h1', handler1)\n        self.router.add_route('POST', '/h2', handler2)\n        req = self.make_request('POST', '/h2')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual({}, info)\n        self.assertIs(handler2, info.handler)\n\n    def test_raise_method_not_allowed(self):\n        handler1 = lambda req: Response(req)\n        handler2 = lambda req: Response(req)\n        self.router.add_route('GET', '/', handler1)\n        self.router.add_route('POST', '/', handler2)\n        req = self.make_request('PUT', '/')\n\n        with self.assertRaises(HTTPMethodNotAllowed) as ctx:\n            self.loop.run_until_complete(self.router.resolve(req))\n\n        exc = ctx.exception\n        self.assertEqual('PUT', exc.method)\n        self.assertEqual(405, exc.status)\n        self.assertEqual({'POST', 'GET'}, exc.allowed_methods)\n\n    def test_raise_method_not_found(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/a', handler)\n        req = self.make_request('GET', '/b')\n\n        with self.assertRaises(HTTPNotFound) as ctx:\n            self.loop.run_until_complete(self.router.resolve(req))\n\n        exc = ctx.exception\n        self.assertEqual(404, exc.status)\n",
            "new_file_content": "import asyncio\nimport unittest\nfrom unittest import mock\nfrom aiohttp.web import (UrlDispatcher, Request, Response,\n                         HTTPMethodNotAllowed, HTTPNotFound)\nfrom aiohttp.multidict import MultiDict\nfrom aiohttp.protocol import HttpVersion, RawRequestMessage\n\n\nclass TestUrlDispatcher(unittest.TestCase):\n\n    def setUp(self):\n        self.loop = asyncio.new_event_loop()\n        asyncio.set_event_loop(None)\n        self.router = UrlDispatcher()\n\n    def tearDown(self):\n        self.loop.close()\n\n    def make_request(self, method, path, headers=MultiDict(), *,\n                     version=HttpVersion(1, 1), closing=False):\n        self.app = mock.Mock()\n        message = RawRequestMessage(method, path, version, headers, closing,\n                                    False)\n        self.payload = mock.Mock()\n        self.writer = mock.Mock()\n        req = Request(self.app, message, self.payload, self.writer)\n        return req\n\n    def test_add_route_root(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/', handler)\n        req = self.make_request('GET', '/')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual(0, len(info))\n        self.assertIs(handler, info.handler)\n\n    def test_add_route_simple(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/handler/to/path', handler)\n        req = self.make_request('GET', '/handler/to/path')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual(0, len(info))\n        self.assertIs(handler, info.handler)\n\n    def test_add_with_matchdict(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/handler/{to}', handler)\n        req = self.make_request('GET', '/handler/tail')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual({'to': 'tail'}, info)\n        self.assertIs(handler, info.handler)\n\n    def test_add_with_tailing_slash(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/handler/to/path/', handler)\n        req = self.make_request('GET', '/handler/to/path/')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual({}, info)\n        self.assertIs(handler, info.handler)\n\n    def test_add_invalid_path(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('GET', '/{/', lambda req: None)\n\n    def test_add_url_invalid1(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id', lambda: None)\n\n    def test_add_url_invalid2(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id{}}', lambda: None)\n\n    def test_add_url_invalid3(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id{}', lambda: None)\n\n    def test_add_url_invalid4(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id\"}', lambda: None)\n\n    def test_add_url_invalid5(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post\"{id}', lambda: None)\n\n    def test_add_url_escaping(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/+$', handler)\n\n        req = self.make_request('GET', '/+$')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertIs(handler, info.handler)\n\n    def test_match_second_result_in_table(self):\n        handler1 = lambda req: Response(req)\n        handler2 = lambda req: Response(req)\n        self.router.add_route('GET', '/h1', handler1)\n        self.router.add_route('POST', '/h2', handler2)\n        req = self.make_request('POST', '/h2')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual({}, info)\n        self.assertIs(handler2, info.handler)\n\n    def test_raise_method_not_allowed(self):\n        handler1 = lambda req: Response(req)\n        handler2 = lambda req: Response(req)\n        self.router.add_route('GET', '/', handler1)\n        self.router.add_route('POST', '/', handler2)\n        req = self.make_request('PUT', '/')\n\n        with self.assertRaises(HTTPMethodNotAllowed) as ctx:\n            self.loop.run_until_complete(self.router.resolve(req))\n\n        exc = ctx.exception\n        self.assertEqual('PUT', exc.method)\n        self.assertEqual(405, exc.status)\n        self.assertEqual({'POST', 'GET'}, exc.allowed_methods)\n\n    def test_raise_method_not_found(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/a', handler)\n        req = self.make_request('GET', '/b')\n\n        with self.assertRaises(HTTPNotFound) as ctx:\n            self.loop.run_until_complete(self.router.resolve(req))\n\n        exc = ctx.exception\n        self.assertEqual(404, exc.status)\n",
            "header": {
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                    "path": "tests/test_urldispatch.py"
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            },
            "index_line": {
                "old_commit_hash": "82762126",
                "new_commit_hash": "6dc8536b",
                "mode": "100644"
            },
            "is_binary_file": false,
            "binary_line": null,
            "minus_file": {
                "path": "a/tests/test_urldispatch.py"
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            },
            "hunks": [
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                        "old_range": {
                            "start": 87,
                            "length": 6
                        },
                        "new_range": {
                            "start": 87,
                            "length": 15
                        },
                        "section": "class TestUrlDispatcher(unittest.TestCase):"
                    },
                    "line_group": {
                        "all_lines": [
                            {
                                "content": "        with self.assertRaises(ValueError):",
                                "type": "context"
                            },
                            {
                                "content": "            self.router.add_route('post', '/post\"{id}', lambda: None)",
                                "type": "context"
                            },
                            {
                                "content": "",
                                "type": "context"
                            },
                            {
                                "content": "    def test_add_url_escaping(self):",
                                "type": "added"
                            },
                            {
                                "content": "        handler = lambda req: Response(req)",
                                "type": "added"
                            },
                            {
                                "content": "        self.router.add_route('GET', '/+$', handler)",
                                "type": "added"
                            },
                            {
                                "content": "",
                                "type": "added"
                            },
                            {
                                "content": "        req = self.make_request('GET', '/+$')",
                                "type": "added"
                            },
                            {
                                "content": "        info = self.loop.run_until_complete(self.router.resolve(req))",
                                "type": "added"
                            },
                            {
                                "content": "        self.assertIsNotNone(info)",
                                "type": "added"
                            },
                            {
                                "content": "        self.assertIs(handler, info.handler)",
                                "type": "added"
                            },
                            {
                                "content": "",
                                "type": "added"
                            },
                            {
                                "content": "    def test_match_second_result_in_table(self):",
                                "type": "context"
                            },
                            {
                                "content": "        handler1 = lambda req: Response(req)",
                                "type": "context"
                            },
                            {
                                "content": "        handler2 = lambda req: Response(req)",
                                "type": "context"
                            },
                            {
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                                "type": "context"
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                    },
                    "modified_entities": [
                        {
                            "file_name": "tests/test_urldispatch.py",
                            "type": "class",
                            "name": "TestUrlDispatcher",
                            "content": "class TestUrlDispatcher(unittest.TestCase):\n\n    def setUp(self):\n        self.loop = asyncio.new_event_loop()\n        asyncio.set_event_loop(None)\n        self.router = UrlDispatcher()\n\n    def tearDown(self):\n        self.loop.close()\n\n    def make_request(self, method, path, headers=MultiDict(), *,\n                     version=HttpVersion(1, 1), closing=False):\n        self.app = mock.Mock()\n        message = RawRequestMessage(method, path, version, headers, closing,\n                                    False)\n        self.payload = mock.Mock()\n        self.writer = mock.Mock()\n        req = Request(self.app, message, self.payload, self.writer)\n        return req\n\n    def test_add_route_root(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/', handler)\n        req = self.make_request('GET', '/')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual(0, len(info))\n        self.assertIs(handler, info.handler)\n\n    def test_add_route_simple(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/handler/to/path', handler)\n        req = self.make_request('GET', '/handler/to/path')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual(0, len(info))\n        self.assertIs(handler, info.handler)\n\n    def test_add_with_matchdict(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/handler/{to}', handler)\n        req = self.make_request('GET', '/handler/tail')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual({'to': 'tail'}, info)\n        self.assertIs(handler, info.handler)\n\n    def test_add_with_tailing_slash(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/handler/to/path/', handler)\n        req = self.make_request('GET', '/handler/to/path/')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual({}, info)\n        self.assertIs(handler, info.handler)\n\n    def test_add_invalid_path(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('GET', '/{/', lambda req: None)\n\n    def test_add_url_invalid1(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id', lambda: None)\n\n    def test_add_url_invalid2(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id{}}', lambda: None)\n\n    def test_add_url_invalid3(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id{}', lambda: None)\n\n    def test_add_url_invalid4(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id\"}', lambda: None)\n\n    def test_add_url_invalid5(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post\"{id}', lambda: None)\n\n    def test_add_url_escaping(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/+$', handler)\n\n        req = self.make_request('GET', '/+$')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertIs(handler, info.handler)\n\n    def test_match_second_result_in_table(self):\n        handler1 = lambda req: Response(req)\n        handler2 = lambda req: Response(req)\n        self.router.add_route('GET', '/h1', handler1)\n        self.router.add_route('POST', '/h2', handler2)\n        req = self.make_request('POST', '/h2')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual({}, info)\n        self.assertIs(handler2, info.handler)\n\n    def test_raise_method_not_allowed(self):\n        handler1 = lambda req: Response(req)\n        handler2 = lambda req: Response(req)\n        self.router.add_route('GET', '/', handler1)\n        self.router.add_route('POST', '/', handler2)\n        req = self.make_request('PUT', '/')\n\n        with self.assertRaises(HTTPMethodNotAllowed) as ctx:\n            self.loop.run_until_complete(self.router.resolve(req))\n\n        exc = ctx.exception\n        self.assertEqual('PUT', exc.method)\n        self.assertEqual(405, exc.status)\n        self.assertEqual({'POST', 'GET'}, exc.allowed_methods)\n\n    def test_raise_method_not_found(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/a', handler)\n        req = self.make_request('GET', '/b')\n\n        with self.assertRaises(HTTPNotFound) as ctx:\n            self.loop.run_until_complete(self.router.resolve(req))\n\n        exc = ctx.exception\n        self.assertEqual(404, exc.status)",
                            "ast_type_str": "ClassDef",
                            "start_lineno": 10,
                            "end_lineno": 134,
                            "parent": null
                        }
                    ],
                    "added_entities": [
                        {
                            "file_name": "tests/test_urldispatch.py",
                            "type": "method",
                            "name": "TestUrlDispatcher.test_add_url_escaping",
                            "content": "class TestUrlDispatcher(unittest.TestCase):\n\n    def setUp(self):\n        self.loop = asyncio.new_event_loop()\n        asyncio.set_event_loop(None)\n        self.router = UrlDispatcher()\n\n    def tearDown(self):\n        self.loop.close()\n\n    def make_request(self, method, path, headers=MultiDict(), *,\n                     version=HttpVersion(1, 1), closing=False):\n        self.app = mock.Mock()\n        message = RawRequestMessage(method, path, version, headers, closing,\n                                    False)\n        self.payload = mock.Mock()\n        self.writer = mock.Mock()\n        req = Request(self.app, message, self.payload, self.writer)\n        return req\n\n    def test_add_route_root(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/', handler)\n        req = self.make_request('GET', '/')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual(0, len(info))\n        self.assertIs(handler, info.handler)\n\n    def test_add_route_simple(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/handler/to/path', handler)\n        req = self.make_request('GET', '/handler/to/path')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual(0, len(info))\n        self.assertIs(handler, info.handler)\n\n    def test_add_with_matchdict(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/handler/{to}', handler)\n        req = self.make_request('GET', '/handler/tail')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual({'to': 'tail'}, info)\n        self.assertIs(handler, info.handler)\n\n    def test_add_with_tailing_slash(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/handler/to/path/', handler)\n        req = self.make_request('GET', '/handler/to/path/')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual({}, info)\n        self.assertIs(handler, info.handler)\n\n    def test_add_invalid_path(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('GET', '/{/', lambda req: None)\n\n    def test_add_url_invalid1(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id', lambda: None)\n\n    def test_add_url_invalid2(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id{}}', lambda: None)\n\n    def test_add_url_invalid3(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id{}', lambda: None)\n\n    def test_add_url_invalid4(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id\"}', lambda: None)\n\n    def test_add_url_invalid5(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post\"{id}', lambda: None)\n\n    def test_add_url_escaping(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/+$', handler)\n\n        req = self.make_request('GET', '/+$')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertIs(handler, info.handler)\n\n    def test_match_second_result_in_table(self):\n        handler1 = lambda req: Response(req)\n        handler2 = lambda req: Response(req)\n        self.router.add_route('GET', '/h1', handler1)\n        self.router.add_route('POST', '/h2', handler2)\n        req = self.make_request('POST', '/h2')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual({}, info)\n        self.assertIs(handler2, info.handler)\n\n    def test_raise_method_not_allowed(self):\n        handler1 = lambda req: Response(req)\n        handler2 = lambda req: Response(req)\n        self.router.add_route('GET', '/', handler1)\n        self.router.add_route('POST', '/', handler2)\n        req = self.make_request('PUT', '/')\n\n        with self.assertRaises(HTTPMethodNotAllowed) as ctx:\n            self.loop.run_until_complete(self.router.resolve(req))\n\n        exc = ctx.exception\n        self.assertEqual('PUT', exc.method)\n        self.assertEqual(405, exc.status)\n        self.assertEqual({'POST', 'GET'}, exc.allowed_methods)\n\n    def test_raise_method_not_found(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/a', handler)\n        req = self.make_request('GET', '/b')\n\n        with self.assertRaises(HTTPNotFound) as ctx:\n            self.loop.run_until_complete(self.router.resolve(req))\n\n        exc = ctx.exception\n        self.assertEqual(404, exc.status)",
                            "ast_type_str": "ClassDef",
                            "start_lineno": 90,
                            "end_lineno": 97,
                            "parent": {
                                "file_name": "tests/test_urldispatch.py",
                                "type": "class",
                                "name": "TestUrlDispatcher",
                                "content": "class TestUrlDispatcher(unittest.TestCase):\n\n    def setUp(self):\n        self.loop = asyncio.new_event_loop()\n        asyncio.set_event_loop(None)\n        self.router = UrlDispatcher()\n\n    def tearDown(self):\n        self.loop.close()\n\n    def make_request(self, method, path, headers=MultiDict(), *,\n                     version=HttpVersion(1, 1), closing=False):\n        self.app = mock.Mock()\n        message = RawRequestMessage(method, path, version, headers, closing,\n                                    False)\n        self.payload = mock.Mock()\n        self.writer = mock.Mock()\n        req = Request(self.app, message, self.payload, self.writer)\n        return req\n\n    def test_add_route_root(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/', handler)\n        req = self.make_request('GET', '/')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual(0, len(info))\n        self.assertIs(handler, info.handler)\n\n    def test_add_route_simple(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/handler/to/path', handler)\n        req = self.make_request('GET', '/handler/to/path')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual(0, len(info))\n        self.assertIs(handler, info.handler)\n\n    def test_add_with_matchdict(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/handler/{to}', handler)\n        req = self.make_request('GET', '/handler/tail')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual({'to': 'tail'}, info)\n        self.assertIs(handler, info.handler)\n\n    def test_add_with_tailing_slash(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/handler/to/path/', handler)\n        req = self.make_request('GET', '/handler/to/path/')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual({}, info)\n        self.assertIs(handler, info.handler)\n\n    def test_add_invalid_path(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('GET', '/{/', lambda req: None)\n\n    def test_add_url_invalid1(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id', lambda: None)\n\n    def test_add_url_invalid2(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id{}}', lambda: None)\n\n    def test_add_url_invalid3(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id{}', lambda: None)\n\n    def test_add_url_invalid4(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id\"}', lambda: None)\n\n    def test_add_url_invalid5(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post\"{id}', lambda: None)\n\n    def test_add_url_escaping(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/+$', handler)\n\n        req = self.make_request('GET', '/+$')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertIs(handler, info.handler)\n\n    def test_match_second_result_in_table(self):\n        handler1 = lambda req: Response(req)\n        handler2 = lambda req: Response(req)\n        self.router.add_route('GET', '/h1', handler1)\n        self.router.add_route('POST', '/h2', handler2)\n        req = self.make_request('POST', '/h2')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual({}, info)\n        self.assertIs(handler2, info.handler)\n\n    def test_raise_method_not_allowed(self):\n        handler1 = lambda req: Response(req)\n        handler2 = lambda req: Response(req)\n        self.router.add_route('GET', '/', handler1)\n        self.router.add_route('POST', '/', handler2)\n        req = self.make_request('PUT', '/')\n\n        with self.assertRaises(HTTPMethodNotAllowed) as ctx:\n            self.loop.run_until_complete(self.router.resolve(req))\n\n        exc = ctx.exception\n        self.assertEqual('PUT', exc.method)\n        self.assertEqual(405, exc.status)\n        self.assertEqual({'POST', 'GET'}, exc.allowed_methods)\n\n    def test_raise_method_not_found(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/a', handler)\n        req = self.make_request('GET', '/b')\n\n        with self.assertRaises(HTTPNotFound) as ctx:\n            self.loop.run_until_complete(self.router.resolve(req))\n\n        exc = ctx.exception\n        self.assertEqual(404, exc.status)",
                                "ast_type_str": "ClassDef",
                                "start_lineno": 10,
                                "end_lineno": 134,
                                "parent": null
                            }
                        }
                    ],
                    "deleted_entities": []
                }
            ]
        }
    ],
    "old_commit_hash": "fca116274b5e7bc3fba09de23330c34ce78fc13b^",
    "new_commit_hash": "fca116274b5e7bc3fba09de23330c34ce78fc13b",
    "commit_message": "Add regex escaping for add_route",
    "commit_date": "2014-10-23T10:36:00-07:00",
    "metadata": {}
}
{
    "repo_name": "aiohttp",
    "new_commit_hash": "fca116274b5e7bc3fba09de23330c34ce78fc13b",
    "test_file_codes": [
        "import asyncio\nimport unittest\nfrom unittest import mock\nfrom aiohttp.web import (UrlDispatcher, Request, Response,\n                         HTTPMethodNotAllowed, HTTPNotFound)\nfrom aiohttp.multidict import MultiDict\nfrom aiohttp.protocol import HttpVersion, RawRequestMessage\n\n\nclass TestUrlDispatcher(unittest.TestCase):\n\n    def setUp(self):\n        self.loop = asyncio.new_event_loop()\n        asyncio.set_event_loop(None)\n        self.router = UrlDispatcher()\n\n    def tearDown(self):\n        self.loop.close()\n\n    def make_request(self, method, path, headers=MultiDict(), *,\n                     version=HttpVersion(1, 1), closing=False):\n        self.app = mock.Mock()\n        message = RawRequestMessage(method, path, version, headers, closing,\n                                    False)\n        self.payload = mock.Mock()\n        self.writer = mock.Mock()\n        req = Request(self.app, message, self.payload, self.writer)\n        return req\n\n    def test_add_route_root(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/', handler)\n        req = self.make_request('GET', '/')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual(0, len(info))\n        self.assertIs(handler, info.handler)\n\n    def test_add_route_simple(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/handler/to/path', handler)\n        req = self.make_request('GET', '/handler/to/path')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual(0, len(info))\n        self.assertIs(handler, info.handler)\n\n    def test_add_with_matchdict(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/handler/{to}', handler)\n        req = self.make_request('GET', '/handler/tail')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual({'to': 'tail'}, info)\n        self.assertIs(handler, info.handler)\n\n    def test_add_with_tailing_slash(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/handler/to/path/', handler)\n        req = self.make_request('GET', '/handler/to/path/')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual({}, info)\n        self.assertIs(handler, info.handler)\n\n    def test_add_invalid_path(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('GET', '/{/', lambda req: None)\n\n    def test_add_url_invalid1(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id', lambda: None)\n\n    def test_add_url_invalid2(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id{}}', lambda: None)\n\n    def test_add_url_invalid3(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id{}', lambda: None)\n\n    def test_add_url_invalid4(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post/{id\"}', lambda: None)\n\n    def test_add_url_invalid5(self):\n        with self.assertRaises(ValueError):\n            self.router.add_route('post', '/post\"{id}', lambda: None)\n\n    def test_add_url_escaping(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/+$', handler)\n\n        req = self.make_request('GET', '/+$')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertIs(handler, info.handler)\n\n    def test_match_second_result_in_table(self):\n        handler1 = lambda req: Response(req)\n        handler2 = lambda req: Response(req)\n        self.router.add_route('GET', '/h1', handler1)\n        self.router.add_route('POST', '/h2', handler2)\n        req = self.make_request('POST', '/h2')\n        info = self.loop.run_until_complete(self.router.resolve(req))\n        self.assertIsNotNone(info)\n        self.assertEqual({}, info)\n        self.assertIs(handler2, info.handler)\n\n    def test_raise_method_not_allowed(self):\n        handler1 = lambda req: Response(req)\n        handler2 = lambda req: Response(req)\n        self.router.add_route('GET', '/', handler1)\n        self.router.add_route('POST', '/', handler2)\n        req = self.make_request('PUT', '/')\n\n        with self.assertRaises(HTTPMethodNotAllowed) as ctx:\n            self.loop.run_until_complete(self.router.resolve(req))\n\n        exc = ctx.exception\n        self.assertEqual('PUT', exc.method)\n        self.assertEqual(405, exc.status)\n        self.assertEqual({'POST', 'GET'}, exc.allowed_methods)\n\n    def test_raise_method_not_found(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/a', handler)\n        req = self.make_request('GET', '/b')\n\n        with self.assertRaises(HTTPNotFound) as ctx:\n            self.loop.run_until_complete(self.router.resolve(req))\n\n        exc = ctx.exception\n        self.assertEqual(404, exc.status)\n"
    ],
    "test_file_names": [
        "test_1.py"
    ],
    "setup_res_code": 0,
    "setup_res_stdout": "Transforming aiohttp/worker.py\nTransforming aiohttp/server.py\nTransforming aiohttp/client.py\n",
    "setup_res_stderr": "Using CPython 3.9.21\nCreating virtual environment at: .venv\nActivate with: source .venv/bin/activate\nmake: *** No rule to make target '.develop'.  Stop.\nResolved 26 packages in 21ms\nInstalled 26 packages in 17ms\n + async-generator==1.10\n + async-timeout==5.0.1\n + brotlipy==0.7.0\n + cffi==1.17.1\n + chardet==5.2.0\n + coverage==7.6.10\n + cryptography==44.0.0\n + cython==3.0.11\n + exceptiongroup==1.2.2\n + gunicorn==23.0.0\n + idna==3.10\n + iniconfig==2.0.0\n + multdict==0.0.5\n + multidict==6.1.0\n + packaging==24.2\n + pluggy==1.5.0\n + propcache==0.2.1\n + pycparser==2.22\n + pytest==8.3.4\n + pytest-asyncio==0.25.1\n + pytest-cov==6.0.0\n + pytest-mock==3.14.0\n + tomli==2.2.1\n + trustme==1.2.1\n + typing-extensions==4.12.2\n + yarl==1.18.3\n",
    "new_commit_res_code": 0,
    "new_commit_res_stdout": "============================= test session starts ==============================\nplatform linux -- Python 3.9.21, pytest-8.3.4, pluggy-1.5.0\nrootdir: /home/gcpuser/buckets/local_repoeval_bucket/repos/aiohttp_fca116274b5e7bc3fba09de23330c34ce78fc13b\nplugins: mock-3.14.0, asyncio-0.25.1, cov-6.0.0\nasyncio: mode=strict, asyncio_default_fixture_loop_scope=None\ncollected 14 items\n\nr2e_tests/test_1.py ..............                                       [100%]\n\n==================================== PASSES ====================================\n=========================== short test summary info ============================\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_add_invalid_path\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_add_route_root\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_add_route_simple\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_add_url_escaping\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_add_url_invalid1\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_add_url_invalid2\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_add_url_invalid3\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_add_url_invalid4\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_add_url_invalid5\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_add_with_matchdict\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_add_with_tailing_slash\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_match_second_result_in_table\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_raise_method_not_allowed\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_raise_method_not_found\n============================== 14 passed in 0.33s ==============================\n",
    "new_commit_res_stderr": "/home/gcpuser/buckets/local_repoeval_bucket/repos/aiohttp_fca116274b5e7bc3fba09de23330c34ce78fc13b/.venv/lib/python3.9/site-packages/pytest_asyncio/plugin.py:207: PytestDeprecationWarning: The configuration option \"asyncio_default_fixture_loop_scope\" is unset.\nThe event loop scope for asynchronous fixtures will default to the fixture caching scope. Future versions of pytest-asyncio will default the loop scope for asynchronous fixtures to function scope. Set the default fixture loop scope explicitly in order to avoid unexpected behavior in the future. Valid fixture loop scopes are: \"function\", \"class\", \"module\", \"package\", \"session\"\n\n  warnings.warn(PytestDeprecationWarning(_DEFAULT_FIXTURE_LOOP_SCOPE_UNSET))\n",
    "old_commit_res_code": 1,
    "old_commit_res_stdout": "============================= test session starts ==============================\nplatform linux -- Python 3.9.21, pytest-8.3.4, pluggy-1.5.0\nrootdir: /home/gcpuser/buckets/local_repoeval_bucket/repos/aiohttp_fca116274b5e7bc3fba09de23330c34ce78fc13b\nplugins: mock-3.14.0, asyncio-0.25.1, cov-6.0.0\nasyncio: mode=strict, asyncio_default_fixture_loop_scope=None\ncollected 14 items\n\nr2e_tests/test_1.py ...F..........                                       [100%]\n\n=================================== FAILURES ===================================\n___________________ TestUrlDispatcher.test_add_url_escaping ____________________\n\nself = <r2e_tests.test_1.TestUrlDispatcher testMethod=test_add_url_escaping>\n\n    def test_add_url_escaping(self):\n        handler = lambda req: Response(req)\n        self.router.add_route('GET', '/+$', handler)\n    \n        req = self.make_request('GET', '/+$')\n>       info = self.loop.run_until_complete(self.router.resolve(req))\n\nr2e_tests/test_1.py:95: \n_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ \n../../../../.local/share/uv/python/cpython-3.9.21-linux-x86_64-gnu/lib/python3.9/asyncio/base_events.py:647: in run_until_complete\n    return future.result()\n../../../../.local/share/uv/python/cpython-3.9.21-linux-x86_64-gnu/lib/python3.9/asyncio/coroutines.py:124: in coro\n    res = func(*args, **kw)\n_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ \n\nself = <aiohttp.web.UrlDispatcher object at 0x75b5b5cc77f0>\nrequest = <aiohttp.web.Request object at 0x75b5b5cc7580>\n\n    @asyncio.coroutine\n    def resolve(self, request):\n        path = request.path\n        method = request.method\n        allowed_methods = set()\n        for entry in self._urls:\n            match = entry.regex.match(path)\n            if match is None:\n                continue\n            if entry.method != method:\n                allowed_methods.add(entry.method)\n            else:\n                break\n        else:\n            if allowed_methods:\n                raise HTTPMethodNotAllowed(request, method, allowed_methods)\n            else:\n>               raise HTTPNotFound(request)\nE               aiohttp.web.HTTPNotFound: Not Found\n\naiohttp/web.py:885: HTTPNotFound\n==================================== PASSES ====================================\n=========================== short test summary info ============================\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_add_invalid_path\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_add_route_root\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_add_route_simple\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_add_url_invalid1\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_add_url_invalid2\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_add_url_invalid3\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_add_url_invalid4\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_add_url_invalid5\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_add_with_matchdict\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_add_with_tailing_slash\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_match_second_result_in_table\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_raise_method_not_allowed\nPASSED r2e_tests/test_1.py::TestUrlDispatcher::test_raise_method_not_found\nFAILED r2e_tests/test_1.py::TestUrlDispatcher::test_add_url_escaping - aiohtt...\n========================= 1 failed, 13 passed in 0.23s =========================\n",
    "old_commit_res_stderr": "/home/gcpuser/buckets/local_repoeval_bucket/repos/aiohttp_fca116274b5e7bc3fba09de23330c34ce78fc13b/.venv/lib/python3.9/site-packages/pytest_asyncio/plugin.py:207: PytestDeprecationWarning: The configuration option \"asyncio_default_fixture_loop_scope\" is unset.\nThe event loop scope for asynchronous fixtures will default to the fixture caching scope. Future versions of pytest-asyncio will default the loop scope for asynchronous fixtures to function scope. Set the default fixture loop scope explicitly in order to avoid unexpected behavior in the future. Valid fixture loop scopes are: \"function\", \"class\", \"module\", \"package\", \"session\"\n\n  warnings.warn(PytestDeprecationWarning(_DEFAULT_FIXTURE_LOOP_SCOPE_UNSET))\n"
}
aiohttp/web.py tests/test_urldispatch.py
We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
[ISSUE]
**Title:** Adding routes with special regex characters like '/+$' results in unresolved routes

**Description:**
When adding a route that includes special regex characters, such as `'/+$'`, the route fails to resolve correctly. This leads to the router not recognizing the path and returning a "Not Found" error.

**Example Code:**
```python
def test_add_url_escaping(self):
    handler = lambda req: Response(req)
    self.router.add_route('GET', '/+$', handler)

    req = self.make_request('GET', '/+$')
    info = self.loop.run_until_complete(self.router.resolve(req))
    # Expected to find the handler, but it fails to resolve
```

**Expected Behavior:**
The route `'/+$'` should be correctly escaped and resolved by the router, allowing the associated handler to be called without any errors.

**Actual Behavior:**
The router fails to recognize the route `'/+$'` due to unescaped special characters, resulting in a `HTTPNotFound` error when attempting to resolve the path.

[/ISSUE]
--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.

--- BEGIN FILE ---
```
### aiohttp/web.py
import asyncio
import binascii
import collections
import cgi
import http.cookies
import io
import json
import re
import weakref

from urllib.parse import urlsplit, parse_qsl, unquote

from .abc import AbstractRouter, AbstractMatchInfo
from .multidict import (CaseInsensitiveMultiDict,
                        CaseInsensitiveMutableMultiDict,
                        MultiDict,
                        MutableMultiDict)
from .protocol import Response as ResponseImpl, HttpVersion, HttpVersion11
from .server import ServerHttpProtocol
from .streams import EOF_MARKER


__all__ = [
    'Application',
    'HttpVersion',
    'Request',
    'StreamResponse',
    'Response',
    'UrlDispatcher',
    'UrlMappingMatchInfo',
    'HTTPException',
    'HTTPError',
    'HTTPRedirection',
    'HTTPSuccessful',
    'HTTPOk',
    'HTTPCreated',
    'HTTPAccepted',
    'HTTPNonAuthoritativeInformation',
    'HTTPNoContent',
    'HTTPResetContent',
    'HTTPPartialContent',
    'HTTPMultipleChoices',
    'HTTPMovedPermanently',
    'HTTPFound',
    'HTTPSeeOther',
    'HTTPNotModified',
    'HTTPUseProxy',
    'HTTPTemporaryRedirect',
    'HTTPClientError',
    'HTTPBadRequest',
    'HTTPUnauthorized',
    'HTTPPaymentRequired',
    'HTTPForbidden',
    'HTTPNotFound',
    'HTTPMethodNotAllowed',
    'HTTPNotAcceptable',
    'HTTPProxyAuthenticationRequired',
    'HTTPRequestTimeout',
    'HTTPConflict',
    'HTTPGone',
    'HTTPLengthRequired',
    'HTTPPreconditionFailed',
    'HTTPRequestEntityTooLarge',
    'HTTPRequestURITooLong',
    'HTTPUnsupportedMediaType',
    'HTTPRequestRangeNotSatisfiable',
    'HTTPExpectationFailed',
    'HTTPServerError',
    'HTTPInternalServerError',
    'HTTPNotImplemented',
    'HTTPBadGateway',
    'HTTPServiceUnavailable',
    'HTTPGatewayTimeout',
    'HTTPVersionNotSupported',
    ]


sentinel = object()


class HeadersMixin:

    _content_type = None
    _content_dict = None
    _stored_content_type = sentinel

    def _parse_content_type(self, raw):
        self._stored_content_type = raw
        if raw is None:
            # default value according to RFC 2616
            self._content_type = 'application/octet-stream'
            self._content_dict = {}
        else:
            self._content_type, self._content_dict = cgi.parse_header(raw)

    @property
    def content_type(self):
        """The value of content part for Content-Type HTTP header."""
        raw = self.headers.get('Content-Type')
        if self._stored_content_type != raw:
            self._parse_content_type(raw)
        return self._content_type

    @property
    def charset(self):
        """The value of charset part for Content-Type HTTP header."""
        # Assumes that charset is UTF8 if not specified
        raw = self.headers.get('Content-Type')
        if self._stored_content_type != raw:
            self._parse_content_type(raw)
        return self._content_dict.get('charset')

    @property
    def content_length(self):
        """The value of Content-Length HTTP header."""
        l = self.headers.get('Content-Length')
        if l is None:
            return None
        else:
            return int(l)


############################################################
# HTTP Request
############################################################


class Request(HeadersMixin):

    def __init__(self, app, message, payload, writer):
        self._app = app
        self._version = message.version
        self._writer = writer
        self._method = message.method
        self._host = message.headers.get('HOST')
        path = unquote(message.path)
        self._path_qs = path
        res = urlsplit(path)
        self._path = res.path
        self._query_string = res.query
        self._get = None
        self._post = None
        self._headers = CaseInsensitiveMultiDict._from_uppercase_multidict(
            message.headers)

        if self._version < HttpVersion11:
            self._keep_alive = False
        elif message.should_close:
            self._keep_alive = False
        else:
            self._keep_alive = True

        # matchdict, route_name, handler
        # or information about traversal lookup
        self._match_info = None  # initialized after route resolving

        self._payload = payload
        self._response = None
        self._cookies = None

    @property
    def method(self):
        """Read only property for getting HTTP method.

        The value is upper-cased str like 'GET', 'POST', 'PUT' etc.
        """
        return self._method

    @property
    def version(self):
        """Read only property for getting HTTP version of request.

        Returns aiohttp.protocol.HttpVersion instance.
        """
        return self._version

    @property
    def host(self):
        """Read only property for getting *HOST* header of request.

        Returns str or None if HTTP request has no HOST header.
        """
        return self._host

    @property
    def path_qs(self):
        """The URL including PATH_INFO and the query string.

        E.g, /app/blog?id=10
        """
        return self._path_qs

    @property
    def path(self):
        """The URL including *PATH INFO* without the host or scheme.

        E.g., ``/app/blog``
        """
        return self._path

    @property
    def query_string(self):
        """The query string in the URL.

        E.g., id=10
        """
        return self._query_string

    @property
    def GET(self):
        """A multidict with all the variables in the query string.

        Lazy property.
        """
        if self._get is None:
            self._get = MultiDict(parse_qsl(self._query_string))
        return self._get

    @property
    def headers(self):
        """A case-insensitive multidict with all headers.

        Lazy property.
        """
        return self._headers

    @property
    def keep_alive(self):
        """Is keepalive enabled by client?"""
        return self._keep_alive

    @property
    def match_info(self):
        """Result of route resolving."""
        return self._match_info

    @property
    def app(self):
        """Application instance."""
        return self._app

    @property
    def cookies(self):
        """Return request cookies.

        A read-only dictionary-like object.
        """
        if self._cookies is None:
            raw = self.headers.get('COOKIE', '')
            parsed = http.cookies.SimpleCookie(raw)
            self._cookies = MultiDict({key: val.value
                                       for key, val in parsed.items()})
        return self._cookies

    @property
    def payload(self):
        """Return raw paiload stream."""
        return self._payload

    @asyncio.coroutine
    def release(self):
        """Release request.

        Eat unread part of HTTP BODY if present.
        """
        chunk = yield from self._payload.readany()
        while chunk is not EOF_MARKER or chunk:
            chunk = yield from self._payload.readany()

    @asyncio.coroutine
    def read(self):
        """Read request body if present.

        Returns bytes object with full request content.
        """

        body = bytearray()
        while True:
            chunk = yield from self._payload.readany()
            body.extend(chunk)
            if chunk is EOF_MARKER:
                break
        return bytes(body)

    @asyncio.coroutine
    def text(self):
        """Return BODY as text using encoding from .charset."""
        bytes_body = yield from self.read()
        encoding = self.charset or 'utf-8'
        return bytes_body.decode(encoding)

    @asyncio.coroutine
    def json(self, *, loader=json.loads):
        """Return BODY as JSON."""
        body = yield from self.text()
        return loader(body)

    @asyncio.coroutine
    def POST(self):
        """Return POST parameters."""
        if self._post is not None:
            return self._post
        if self.method not in ('POST', 'PUT', 'PATCH'):
            self._post = MultiDict()
            return self._post
        content_type = self.content_type
        if (content_type not in ('',
                                 'application/x-www-form-urlencoded',
                                 'multipart/form-data')):
            self._post = MultiDict()
            return self._post

        body = yield from self.read()
        content_charset = self.charset or 'utf-8'

        environ = {'REQUEST_METHOD': self.method,
                   'CONTENT_LENGTH': str(len(body)),
                   'QUERY_STRING': '',
                   'CONTENT_TYPE': self.headers.get('CONTENT-TYPE')}

        fs = cgi.FieldStorage(fp=io.BytesIO(body),
                              environ=environ,
                              keep_blank_values=True,
                              encoding=content_charset)

        supported_tranfer_encoding = {
            'base64': binascii.a2b_base64,
            'quoted-printable': binascii.a2b_qp
        }
        out = MutableMultiDict()
        for field in fs.list or ():
            charset = field.type_options.get('charset', 'utf-8')
            transfer_encoding = field.headers.get('Content-Transfer-Encoding',
                                                  None)
            if charset == 'utf-8':
                decode = lambda b: b
            else:
                decode = lambda b: b.encode('utf-8').decode(charset)
            if field.filename:
                field.filename = decode(field.filename)
                out.add(field.name, field)
            else:
                value = field.value
                if transfer_encoding in supported_tranfer_encoding:
                    # binascii accepts bytes
                    value = value.encode('utf-8')
                    value = supported_tranfer_encoding[
                        transfer_encoding](value)
                    # binascii returns bytes
                    value = value.decode('utf-8')
                out.add(field.name, decode(value))
        self._post = MultiDict(out)
        return self._post

    @asyncio.coroutine
    def start_websocket(self):
        """Upgrade connection to websocket.

        Returns (reader, writer) pair.
        """

############################################################
# HTTP Response classes
############################################################


class StreamResponse(HeadersMixin):

    def __init__(self, request, *, status=200, reason=None):
        self._request = request
        self._headers = CaseInsensitiveMutableMultiDict()
        self._status = int(status)
        if reason is None:
            reason = ResponseImpl.calc_reason(status)
        self._reason = reason
        self._cookies = http.cookies.SimpleCookie()
        self._deleted_cookies = set()
        self._keep_alive = request.keep_alive

        self._resp_impl = None
        self._eof_sent = False

    def _copy_cookies(self):
        for cookie in self._cookies.values():
            value = cookie.output(header='')[1:]
            self.headers.add('Set-Cookie', value)

    def _check_sending_started(self):
        resp = self._request._response
        if resp is not None:
            resp = resp()  # dereference weakref
        if resp is not None:
            raise RuntimeError(("Response {!r} already started to send"
                                " data").format(resp))

    @property
    def request(self):
        return self._request

    @property
    def status(self):
        return self._status

    @property
    def reason(self):
        return self._reason

    @property
    def keep_alive(self):
        return self._keep_alive

    def force_close(self):
        self._keep_alive = False

    @property
    def headers(self):
        return self._headers

    @property
    def cookies(self):
        return self._cookies

    def set_cookie(self, name, value, *, expires=None,
                   domain=None, max_age=None, path=None,
                   secure=None, httponly=None, version=None):
        """Set or update response cookie.

        Sets new cookie or updates existent with new value.
        Also updates only those params which are not None.
        """

        self._check_sending_started()
        if name in self._deleted_cookies:
            self._deleted_cookies.remove(name)
            self._cookies.pop(name, None)

        self._cookies[name] = value
        c = self._cookies[name]
        if expires is not None:
            c['expires'] = expires
        if domain is not None:
            c['domain'] = domain
        if max_age is not None:
            c['max-age'] = max_age
        if path is not None:
            c['path'] = path
        if secure is not None:
            c['secure'] = secure
        if httponly is not None:
            c['httponly'] = httponly
        if version is not None:
            c['version'] = version

    def del_cookie(self, name, *, domain=None, path=None):
        """Delete cookie.

        Creates new empty expired cookie.
        """
        # TODO: do we need domain/path here?
        self._check_sending_started()
        self._cookies.pop(name, None)
        self.set_cookie(name, '', max_age=0, domain=domain, path=path)
        self._deleted_cookies.add(name)

    @property
    def content_length(self):
        # Just a placeholder for adding setter
        return super().content_length

    @content_length.setter
    def content_length(self, value):
        self._check_sending_started()
        if value is not None:
            value = int(value)
            # TODO: raise error if chunked enabled
            self.headers['Content-Length'] = str(value)
        elif 'Content-Length' in self.headers:
            del self.headers['Content-Length']

    @property
    def content_type(self):
        # Just a placeholder for adding setter
        return super().content_type

    @content_type.setter
    def content_type(self, value):
        self._check_sending_started()
        self.content_type  # read header values if needed
        self._content_type = str(value)
        self._generate_content_type_header()

    @property
    def charset(self):
        # Just a placeholder for adding setter
        return super().charset

    @charset.setter
    def charset(self, value):
        self._check_sending_started()
        ctype = self.content_type  # read header values if needed
        if ctype == 'application/octet-stream':
            raise RuntimeError("Setting charset for application/octet-stream "
                               "doesn't make sense, setup content_type first")
        if value is None:
            self._content_dict.pop('charset', None)
        else:
            self._content_dict['charset'] = str(value)
        self._generate_content_type_header()

    def _generate_content_type_header(self):
        params = '; '.join("%s=%s" % i for i in self._content_dict.items())
        if params:
            ctype = self._content_type + '; ' + params
        else:
            ctype = self._content_type
        self.headers['Content-Type'] = ctype

    def set_chunked(self, chunk_size, buffered=True):
        if self.content_length is not None:
            raise RuntimeError(
                "Cannot use chunked encoding with Content-Length set up")

    def send_headers(self):
        if self._resp_impl is not None:
            raise RuntimeError("HTTP headers are already sent")

        self._check_sending_started()
        self._request._response = weakref.ref(self)

        resp_impl = self._resp_impl = ResponseImpl(
            self._request._writer,
            self._status,
            self._request.version,
            not self._keep_alive,
            self._reason)

        self._copy_cookies()

        headers = self.headers.items(getall=True)
        for key, val in headers:
            resp_impl.add_header(key, val)

        resp_impl.send_headers()

    def write(self, data):
        if not isinstance(data, (bytes, bytearray, memoryview)):
            raise TypeError('data argument must be byte-ish (%r)',
                            type(data))

        if self._eof_sent:
            raise RuntimeError("Cannot call write() after write_eof()")
        if self._resp_impl is None:
            self.send_headers()

        if data:
            self._resp_impl.write(data)

    @asyncio.coroutine
    def write_eof(self):
        if self._eof_sent:
            return
        if self._resp_impl is None:
            raise RuntimeError("No headers has been sent")

        yield from self._resp_impl.write_eof()
        self._eof_sent = True


class Response(StreamResponse):

    def __init__(self, request, body=None, *,
                 status=200, reason=None, headers=None):
        super().__init__(request, status=status, reason=reason)
        self.body = body
        if headers is not None:
            self.headers.extend(headers)

    @property
    def body(self):
        return self._body

    @body.setter
    def body(self, body):
        if body is not None and not isinstance(body, bytes):
            raise TypeError('body argument must be bytes (%r)',
                            type(body))
        self._check_sending_started()
        self._body = body
        if body is not None:
            self.content_length = len(body)
        else:
            self.content_length = 0

    @asyncio.coroutine
    def write_eof(self):
        body = self._body
        if self._resp_impl is None:
            self.send_headers()
        if body is not None:
            self.write(body)
        yield from super().write_eof()

############################################################
# HTTP Exceptions
############################################################


class HTTPException(Response, Exception):

    # You should set in subclasses:
    # status = 200

    status_code = None

    def __init__(self, request, *, headers=None, reason=None):
        Response.__init__(self, request, status=self.status_code,
                          headers=headers, reason=reason)
        Exception.__init__(self, self.reason)


class HTTPError(HTTPException):
    """Base class for exceptions with status codes in the 400s and 500s."""


class HTTPRedirection(HTTPException):
    """Base class for exceptions with status codes in the 300s."""


class HTTPSuccessful(HTTPException):
    """Base class for exceptions with status codes in the 200s."""


class HTTPOk(HTTPSuccessful):
    status_code = 200


class HTTPCreated(HTTPSuccessful):
    status_code = 201


class HTTPAccepted(HTTPSuccessful):
    status_code = 202


class HTTPNonAuthoritativeInformation(HTTPSuccessful):
    status_code = 203


class HTTPNoContent(HTTPSuccessful):
    status_code = 204


class HTTPResetContent(HTTPSuccessful):
    status_code = 205


class HTTPPartialContent(HTTPSuccessful):
    status_code = 206


############################################################
# 3xx redirection
############################################################


class _HTTPMove(HTTPRedirection):

    def __init__(self, request, location, *,  headers=None, reason=None):
        if not location:
            raise ValueError("HTTP redirects need a location to redirect to.")
        super().__init__(request, headers=headers, reason=reason)
        self.headers['Location'] = location
        self.location = location


class HTTPMultipleChoices(_HTTPMove):
    status_code = 300


class HTTPMovedPermanently(_HTTPMove):
    status_code = 301


class HTTPFound(_HTTPMove):
    status_code = 302


# This one is safe after a POST (the redirected location will be
# retrieved with GET):
class HTTPSeeOther(_HTTPMove):
    status_code = 303


class HTTPNotModified(HTTPRedirection):
    # FIXME: this should include a date or etag header
    status_code = 304


class HTTPUseProxy(_HTTPMove):
    # Not a move, but looks a little like one
    status_code = 305


class HTTPTemporaryRedirect(_HTTPMove):
    status_code = 307


############################################################
# 4xx client error
############################################################


class HTTPClientError(HTTPError):
    pass


class HTTPBadRequest(HTTPClientError):
    status_code = 400


class HTTPUnauthorized(HTTPClientError):
    status_code = 401


class HTTPPaymentRequired(HTTPClientError):
    status_code = 402


class HTTPForbidden(HTTPClientError):
    status_code = 403


class HTTPNotFound(HTTPClientError):
    status_code = 404


class HTTPMethodNotAllowed(HTTPClientError):
    status_code = 405

    def __init__(self, request, method, allowed_methods, *,
                 headers=None, reason=None):
        allow = ','.join(sorted(allowed_methods))
        super().__init__(request, headers=headers, reason=reason)
        self.headers['Allow'] = allow
        self.allowed_methods = allowed_methods
        self.method = method.upper()


class HTTPNotAcceptable(HTTPClientError):
    status_code = 406


class HTTPProxyAuthenticationRequired(HTTPClientError):
    status_code = 407


class HTTPRequestTimeout(HTTPClientError):
    status_code = 408


class HTTPConflict(HTTPClientError):
    status_code = 409


class HTTPGone(HTTPClientError):
    status_code = 410


class HTTPLengthRequired(HTTPClientError):
    status_code = 411


class HTTPPreconditionFailed(HTTPClientError):
    status_code = 412


class HTTPRequestEntityTooLarge(HTTPClientError):
    status_code = 413


class HTTPRequestURITooLong(HTTPClientError):
    status_code = 414


class HTTPUnsupportedMediaType(HTTPClientError):
    status_code = 415


class HTTPRequestRangeNotSatisfiable(HTTPClientError):
    status_code = 416


class HTTPExpectationFailed(HTTPClientError):
    status_code = 417


############################################################
# 5xx Server Error
############################################################
#  Response status codes beginning with the digit "5" indicate cases in
#  which the server is aware that it has erred or is incapable of
#  performing the request. Except when responding to a HEAD request, the
#  server SHOULD include an entity containing an explanation of the error
#  situation, and whether it is a temporary or permanent condition. User
#  agents SHOULD display any included entity to the user. These response
#  codes are applicable to any request method.


class HTTPServerError(HTTPError):
    pass


class HTTPInternalServerError(HTTPServerError):
    status_code = 500


class HTTPNotImplemented(HTTPServerError):
    status_code = 501


class HTTPBadGateway(HTTPServerError):
    status_code = 502


class HTTPServiceUnavailable(HTTPServerError):
    status_code = 503


class HTTPGatewayTimeout(HTTPServerError):
    status_code = 504


class HTTPVersionNotSupported(HTTPServerError):
    status_code = 505


############################################################
# UrlDispatcher implementation
############################################################


class UrlMappingMatchInfo(dict, AbstractMatchInfo):

    def __init__(self, match_dict, entry):
        super().__init__(match_dict)
        self._entry = entry

    @property
    def handler(self):
        return self._entry.handler


Entry = collections.namedtuple('Entry', 'regex method handler')


class UrlDispatcher(AbstractRouter):

    DYN = re.compile(r'^\{[_a-zA-Z][_a-zA-Z0-9]*\}$')
    GOOD = r'[^{}/]+'
    PLAIN = re.compile('^'+GOOD+'$')

    METHODS = {'POST', 'GET', 'PUT', 'DELETE', 'PATCH', 'HEAD', 'OPTIONS'}

    def __init__(self):
        super().__init__()
        self._urls = []

    @asyncio.coroutine
    def resolve(self, request):
        path = request.path
        method = request.method
        allowed_methods = set()
        for entry in self._urls:
            match = entry.regex.match(path)
            if match is None:
                continue
            if entry.method != method:
                allowed_methods.add(entry.method)
            else:
                break
        else:
            if allowed_methods:
                raise HTTPMethodNotAllowed(request, method, allowed_methods)
            else:
                raise HTTPNotFound(request)

        matchdict = match.groupdict()
        return UrlMappingMatchInfo(matchdict, entry)

    def add_route(self, method, path, handler):
        assert path.startswith('/')
        assert callable(handler), handler
        method = method.upper()
        assert method in self.METHODS, method
        regexp = []
        for part in path.split('/'):
            if not part:
                continue
            if self.DYN.match(part):
                regexp.append('(?P<'+part[1:-1]+'>'+self.GOOD+')')
            elif self.PLAIN.match(part):
                regexp.append(part)
            else:
                raise ValueError("Invalid path '{}'['{}']".format(path, part))
        pattern = '/' + '/'.join(regexp)
        if path.endswith('/') and pattern != '/':
            pattern += '/'
        try:
            compiled = re.compile('^' + pattern + '$')
        except re.error:
            raise ValueError("Invalid path '{}'".format(path))
        self._urls.append(Entry(compiled, method, handler))


############################################################
# Application implementation
############################################################


class RequestHandler(ServerHttpProtocol):

    def __init__(self, app, **kwargs):
        super().__init__(**kwargs)
        self._app = app

    @asyncio.coroutine
    def handle_request(self, message, payload):
        request = Request(self._app, message, payload, self.writer)
        try:
            match_info = yield from self._app.router.resolve(request)

            request._match_info = match_info
            handler = match_info.handler

            resp = handler(request)
            if (asyncio.iscoroutine(resp) or
                    isinstance(resp, asyncio.Future)):
                resp = yield from resp
            if not isinstance(resp, StreamResponse):
                raise RuntimeError(("Handler should return response "
                                    "instance, got {!r}")
                                   .format(type(resp)))
        except HTTPException as exc:
            resp = exc

        yield from resp.write_eof()
        if resp.keep_alive:
            # Don't need to read request body if any on closing connection
            yield from request.release()
        self.keep_alive(resp.keep_alive)


class Application(dict):

    def __init__(self, loop=None, *, router=None, **kwargs):
        # TODO: explicitly accept *debug* param
        if loop is None:
            loop = asyncio.get_event_loop()
        self._kwargs = kwargs
        if router is None:
            router = UrlDispatcher()
        self._router = router
        self._loop = loop
        self._finish_callbacks = []

    @property
    def router(self):
        return self._router

    @property
    def loop(self):
        return self._loop

    def make_handler(self):
        return RequestHandler(self, loop=self._loop, **self._kwargs)

    @asyncio.coroutine
    def finish(self):
        for (cb, args, kwargs) in self._finish_callbacks:
            try:
                res = cb(*args, **kwargs)
                if (asyncio.iscoroutine(res) or
                        isinstance(res, asyncio.Future)):
                    yield from res
            except Exception as exc:
                self._loop.call_exception_handler({
                    'message': "Error in finish callback",
                    'exception': exc,
                    'application': self,
                })

    def register_on_finish(self, cb, *args, **kwargs):
        self._finish_callbacks.append((cb, args, kwargs))

```
--- END FILE ---

Please first localize the bug based on the issue statement, and then generate *SEARCH/REPLACE* edits to fix the issue.

Every *SEARCH/REPLACE* edit must use this format:
1. The file path
2. The start of search block: <<<<<<< SEARCH
3. A contiguous chunk of lines to search for in the existing source code
4. The dividing line: =======
5. The lines to replace into the source code
6. The end of the replace block: >>>>>>> REPLACE

Here is an example:

```python
### mathweb/flask/app.py
<<<<<<< SEARCH
from flask import Flask
=======
import math
from flask import Flask
>>>>>>> REPLACE
```
</solution>

Please note that the *SEARCH/REPLACE* edit REQUIRES PROPER INDENTATION. If you would like to add the line '        print(x)', you must fully write that out, with all those spaces before the code!
Wrap each *SEARCH/REPLACE* edit in a code block as shown in the example above. If you have multiple *SEARCH/REPLACE* edits, use a separate code block for each one.
[ISSUE]
**Title:** Adding routes with special regex characters like '/+$' results in unresolved routes

**Description:**
When adding a route that includes special regex characters, such as `'/+$'`, the route fails to resolve correctly. This leads to the router not recognizing the path and returning a "Not Found" error.

**Example Code:**
```python
def test_add_url_escaping(self):
    handler = lambda req: Response(req)
    self.router.add_route('GET', '/+$', handler)

    req = self.make_request('GET', '/+$')
    info = self.loop.run_until_complete(self.router.resolve(req))
    # Expected to find the handler, but it fails to resolve
```

**Expected Behavior:**
The route `'/+$'` should be correctly escaped and resolved by the router, allowing the associated handler to be called without any errors.

**Actual Behavior:**
The router fails to recognize the route `'/+$'` due to unescaped special characters, resulting in a `HTTPNotFound` error when attempting to resolve the path.

[/ISSUE]
{
    "TestUrlDispatcher.test_add_invalid_path": "PASSED",
    "TestUrlDispatcher.test_add_route_root": "PASSED",
    "TestUrlDispatcher.test_add_route_simple": "PASSED",
    "TestUrlDispatcher.test_add_url_escaping": "PASSED",
    "TestUrlDispatcher.test_add_url_invalid1": "PASSED",
    "TestUrlDispatcher.test_add_url_invalid2": "PASSED",
    "TestUrlDispatcher.test_add_url_invalid3": "PASSED",
    "TestUrlDispatcher.test_add_url_invalid4": "PASSED",
    "TestUrlDispatcher.test_add_url_invalid5": "PASSED",
    "TestUrlDispatcher.test_add_with_matchdict": "PASSED",
    "TestUrlDispatcher.test_add_with_tailing_slash": "PASSED",
    "TestUrlDispatcher.test_match_second_result_in_table": "PASSED",
    "TestUrlDispatcher.test_raise_method_not_allowed": "PASSED",
    "TestUrlDispatcher.test_raise_method_not_found": "PASSED"
}
diff --git a/aiohttp/web.py b/aiohttp/web.py
index 9c65c609..29eb7ef5 100644
--- a/aiohttp/web.py
+++ b/aiohttp/web.py
@@ -899,7 +899,7 @@ class UrlDispatcher(AbstractRouter):
             if self.DYN.match(part):
                 regexp.append('(?P<'+part[1:-1]+'>'+self.GOOD+')')
             elif self.PLAIN.match(part):
-                regexp.append(part)
+                regexp.append(re.escape(part))
             else:
                 raise ValueError("Invalid path '{}'['{}']".format(path, part))
         pattern = '/' + '/'.join(regexp)

{"aiohttp/web.py": "import asyncio\nimport binascii\nimport collections\nimport cgi\nimport http.cookies\nimport io\nimport json\nimport re\nimport weakref\n\nfrom urllib.parse import urlsplit, parse_qsl, unquote\n\nfrom .abc import AbstractRouter, AbstractMatchInfo\nfrom .multidict import (CaseInsensitiveMultiDict,\n                        CaseInsensitiveMutableMultiDict,\n                        MultiDict,\n                        MutableMultiDict)\nfrom .protocol import Response as ResponseImpl, HttpVersion, HttpVersion11\nfrom .server import ServerHttpProtocol\nfrom .streams import EOF_MARKER\n\n\n__all__ = [\n    'Application',\n    'HttpVersion',\n    'Request',\n    'StreamResponse',\n    'Response',\n    'UrlDispatcher',\n    'UrlMappingMatchInfo',\n    'HTTPException',\n    'HTTPError',\n    'HTTPRedirection',\n    'HTTPSuccessful',\n    'HTTPOk',\n    'HTTPCreated',\n    'HTTPAccepted',\n    'HTTPNonAuthoritativeInformation',\n    'HTTPNoContent',\n    'HTTPResetContent',\n    'HTTPPartialContent',\n    'HTTPMultipleChoices',\n    'HTTPMovedPermanently',\n    'HTTPFound',\n    'HTTPSeeOther',\n    'HTTPNotModified',\n    'HTTPUseProxy',\n    'HTTPTemporaryRedirect',\n    'HTTPClientError',\n    'HTTPBadRequest',\n    'HTTPUnauthorized',\n    'HTTPPaymentRequired',\n    'HTTPForbidden',\n    'HTTPNotFound',\n    'HTTPMethodNotAllowed',\n    'HTTPNotAcceptable',\n    'HTTPProxyAuthenticationRequired',\n    'HTTPRequestTimeout',\n    'HTTPConflict',\n    'HTTPGone',\n    'HTTPLengthRequired',\n    'HTTPPreconditionFailed',\n    'HTTPRequestEntityTooLarge',\n    'HTTPRequestURITooLong',\n    'HTTPUnsupportedMediaType',\n    'HTTPRequestRangeNotSatisfiable',\n    'HTTPExpectationFailed',\n    'HTTPServerError',\n    'HTTPInternalServerError',\n    'HTTPNotImplemented',\n    'HTTPBadGateway',\n    'HTTPServiceUnavailable',\n    'HTTPGatewayTimeout',\n    'HTTPVersionNotSupported',\n    ]\n\n\nsentinel = object()\n\n\nclass HeadersMixin:\n\n    _content_type = None\n    _content_dict = None\n    _stored_content_type = sentinel\n\n    def _parse_content_type(self, raw):\n        self._stored_content_type = raw\n        if raw is None:\n            # default value according to RFC 2616\n            self._content_type = 'application/octet-stream'\n            self._content_dict = {}\n        else:\n            self._content_type, self._content_dict = cgi.parse_header(raw)\n\n    @property\n    def content_type(self):\n        \"\"\"The value of content part for Content-Type HTTP header.\"\"\"\n        raw = self.headers.get('Content-Type')\n        if self._stored_content_type != raw:\n            self._parse_content_type(raw)\n        return self._content_type\n\n    @property\n    def charset(self):\n        \"\"\"The value of charset part for Content-Type HTTP header.\"\"\"\n        # Assumes that charset is UTF8 if not specified\n        raw = self.headers.get('Content-Type')\n        if self._stored_content_type != raw:\n            self._parse_content_type(raw)\n        return self._content_dict.get('charset')\n\n    @property\n    def content_length(self):\n        \"\"\"The value of Content-Length HTTP header.\"\"\"\n        l = self.headers.get('Content-Length')\n        if l is None:\n            return None\n        else:\n            return int(l)\n\n\n############################################################\n# HTTP Request\n############################################################\n\n\nclass Request(HeadersMixin):\n\n    def __init__(self, app, message, payload, writer):\n        self._app = app\n        self._version = message.version\n        self._writer = writer\n        self._method = message.method\n        self._host = message.headers.get('HOST')\n        path = unquote(message.path)\n        self._path_qs = path\n        res = urlsplit(path)\n        self._path = res.path\n        self._query_string = res.query\n        self._get = None\n        self._post = None\n        self._headers = CaseInsensitiveMultiDict._from_uppercase_multidict(\n            message.headers)\n\n        if self._version < HttpVersion11:\n            self._keep_alive = False\n        elif message.should_close:\n            self._keep_alive = False\n        else:\n            self._keep_alive = True\n\n        # matchdict, route_name, handler\n        # or information about traversal lookup\n        self._match_info = None  # initialized after route resolving\n\n        self._payload = payload\n        self._response = None\n        self._cookies = None\n\n    @property\n    def method(self):\n        \"\"\"Read only property for getting HTTP method.\n\n        The value is upper-cased str like 'GET', 'POST', 'PUT' etc.\n        \"\"\"\n        return self._method\n\n    @property\n    def version(self):\n        \"\"\"Read only property for getting HTTP version of request.\n\n        Returns aiohttp.protocol.HttpVersion instance.\n        \"\"\"\n        return self._version\n\n    @property\n    def host(self):\n        \"\"\"Read only property for getting *HOST* header of request.\n\n        Returns str or None if HTTP request has no HOST header.\n        \"\"\"\n        return self._host\n\n    @property\n    def path_qs(self):\n        \"\"\"The URL including PATH_INFO and the query string.\n\n        E.g, /app/blog?id=10\n        \"\"\"\n        return self._path_qs\n\n    @property\n    def path(self):\n        \"\"\"The URL including *PATH INFO* without the host or scheme.\n\n        E.g., ``/app/blog``\n        \"\"\"\n        return self._path\n\n    @property\n    def query_string(self):\n        \"\"\"The query string in the URL.\n\n        E.g., id=10\n        \"\"\"\n        return self._query_string\n\n    @property\n    def GET(self):\n        \"\"\"A multidict with all the variables in the query string.\n\n        Lazy property.\n        \"\"\"\n        if self._get is None:\n            self._get = MultiDict(parse_qsl(self._query_string))\n        return self._get\n\n    @property\n    def headers(self):\n        \"\"\"A case-insensitive multidict with all headers.\n\n        Lazy property.\n        \"\"\"\n        return self._headers\n\n    @property\n    def keep_alive(self):\n        \"\"\"Is keepalive enabled by client?\"\"\"\n        return self._keep_alive\n\n    @property\n    def match_info(self):\n        \"\"\"Result of route resolving.\"\"\"\n        return self._match_info\n\n    @property\n    def app(self):\n        \"\"\"Application instance.\"\"\"\n        return self._app\n\n    @property\n    def cookies(self):\n        \"\"\"Return request cookies.\n\n        A read-only dictionary-like object.\n        \"\"\"\n        if self._cookies is None:\n            raw = self.headers.get('COOKIE', '')\n            parsed = http.cookies.SimpleCookie(raw)\n            self._cookies = MultiDict({key: val.value\n                                       for key, val in parsed.items()})\n        return self._cookies\n\n    @property\n    def payload(self):\n        \"\"\"Return raw paiload stream.\"\"\"\n        return self._payload\n\n    @asyncio.coroutine\n    def release(self):\n        \"\"\"Release request.\n\n        Eat unread part of HTTP BODY if present.\n        \"\"\"\n        chunk = yield from self._payload.readany()\n        while chunk is not EOF_MARKER or chunk:\n            chunk = yield from self._payload.readany()\n\n    @asyncio.coroutine\n    def read(self):\n        \"\"\"Read request body if present.\n\n        Returns bytes object with full request content.\n        \"\"\"\n\n        body = bytearray()\n        while True:\n            chunk = yield from self._payload.readany()\n            body.extend(chunk)\n            if chunk is EOF_MARKER:\n                break\n        return bytes(body)\n\n    @asyncio.coroutine\n    def text(self):\n        \"\"\"Return BODY as text using encoding from .charset.\"\"\"\n        bytes_body = yield from self.read()\n        encoding = self.charset or 'utf-8'\n        return bytes_body.decode(encoding)\n\n    @asyncio.coroutine\n    def json(self, *, loader=json.loads):\n        \"\"\"Return BODY as JSON.\"\"\"\n        body = yield from self.text()\n        return loader(body)\n\n    @asyncio.coroutine\n    def POST(self):\n        \"\"\"Return POST parameters.\"\"\"\n        if self._post is not None:\n            return self._post\n        if self.method not in ('POST', 'PUT', 'PATCH'):\n            self._post = MultiDict()\n            return self._post\n        content_type = self.content_type\n        if (content_type not in ('',\n                                 'application/x-www-form-urlencoded',\n                                 'multipart/form-data')):\n            self._post = MultiDict()\n            return self._post\n\n        body = yield from self.read()\n        content_charset = self.charset or 'utf-8'\n\n        environ = {'REQUEST_METHOD': self.method,\n                   'CONTENT_LENGTH': str(len(body)),\n                   'QUERY_STRING': '',\n                   'CONTENT_TYPE': self.headers.get('CONTENT-TYPE')}\n\n        fs = cgi.FieldStorage(fp=io.BytesIO(body),\n                              environ=environ,\n                              keep_blank_values=True,\n                              encoding=content_charset)\n\n        supported_tranfer_encoding = {\n            'base64': binascii.a2b_base64,\n            'quoted-printable': binascii.a2b_qp\n        }\n        out = MutableMultiDict()\n        for field in fs.list or ():\n            charset = field.type_options.get('charset', 'utf-8')\n            transfer_encoding = field.headers.get('Content-Transfer-Encoding',\n                                                  None)\n            if charset == 'utf-8':\n                decode = lambda b: b\n            else:\n                decode = lambda b: b.encode('utf-8').decode(charset)\n            if field.filename:\n                field.filename = decode(field.filename)\n                out.add(field.name, field)\n            else:\n                value = field.value\n                if transfer_encoding in supported_tranfer_encoding:\n                    # binascii accepts bytes\n                    value = value.encode('utf-8')\n                    value = supported_tranfer_encoding[\n                        transfer_encoding](value)\n                    # binascii returns bytes\n                    value = value.decode('utf-8')\n                out.add(field.name, decode(value))\n        self._post = MultiDict(out)\n        return self._post\n\n    @asyncio.coroutine\n    def start_websocket(self):\n        \"\"\"Upgrade connection to websocket.\n\n        Returns (reader, writer) pair.\n        \"\"\"\n\n############################################################\n# HTTP Response classes\n############################################################\n\n\nclass StreamResponse(HeadersMixin):\n\n    def __init__(self, request, *, status=200, reason=None):\n        self._request = request\n        self._headers = CaseInsensitiveMutableMultiDict()\n        self._status = int(status)\n        if reason is None:\n            reason = ResponseImpl.calc_reason(status)\n        self._reason = reason\n        self._cookies = http.cookies.SimpleCookie()\n        self._deleted_cookies = set()\n        self._keep_alive = request.keep_alive\n\n        self._resp_impl = None\n        self._eof_sent = False\n\n    def _copy_cookies(self):\n        for cookie in self._cookies.values():\n            value = cookie.output(header='')[1:]\n            self.headers.add('Set-Cookie', value)\n\n    def _check_sending_started(self):\n        resp = self._request._response\n        if resp is not None:\n            resp = resp()  # dereference weakref\n        if resp is not None:\n            raise RuntimeError((\"Response {!r} already started to send\"\n                                \" data\").format(resp))\n\n    @property\n    def request(self):\n        return self._request\n\n    @property\n    def status(self):\n        return self._status\n\n    @property\n    def reason(self):\n        return self._reason\n\n    @property\n    def keep_alive(self):\n        return self._keep_alive\n\n    def force_close(self):\n        self._keep_alive = False\n\n    @property\n    def headers(self):\n        return self._headers\n\n    @property\n    def cookies(self):\n        return self._cookies\n\n    def set_cookie(self, name, value, *, expires=None,\n                   domain=None, max_age=None, path=None,\n                   secure=None, httponly=None, version=None):\n        \"\"\"Set or update response cookie.\n\n        Sets new cookie or updates existent with new value.\n        Also updates only those params which are not None.\n        \"\"\"\n\n        self._check_sending_started()\n        if name in self._deleted_cookies:\n            self._deleted_cookies.remove(name)\n            self._cookies.pop(name, None)\n\n        self._cookies[name] = value\n        c = self._cookies[name]\n        if expires is not None:\n            c['expires'] = expires\n        if domain is not None:\n            c['domain'] = domain\n        if max_age is not None:\n            c['max-age'] = max_age\n        if path is not None:\n            c['path'] = path\n        if secure is not None:\n            c['secure'] = secure\n        if httponly is not None:\n            c['httponly'] = httponly\n        if version is not None:\n            c['version'] = version\n\n    def del_cookie(self, name, *, domain=None, path=None):\n        \"\"\"Delete cookie.\n\n        Creates new empty expired cookie.\n        \"\"\"\n        # TODO: do we need domain/path here?\n        self._check_sending_started()\n        self._cookies.pop(name, None)\n        self.set_cookie(name, '', max_age=0, domain=domain, path=path)\n        self._deleted_cookies.add(name)\n\n    @property\n    def content_length(self):\n        # Just a placeholder for adding setter\n        return super().content_length\n\n    @content_length.setter\n    def content_length(self, value):\n        self._check_sending_started()\n        if value is not None:\n            value = int(value)\n            # TODO: raise error if chunked enabled\n            self.headers['Content-Length'] = str(value)\n        elif 'Content-Length' in self.headers:\n            del self.headers['Content-Length']\n\n    @property\n    def content_type(self):\n        # Just a placeholder for adding setter\n        return super().content_type\n\n    @content_type.setter\n    def content_type(self, value):\n        self._check_sending_started()\n        self.content_type  # read header values if needed\n        self._content_type = str(value)\n        self._generate_content_type_header()\n\n    @property\n    def charset(self):\n        # Just a placeholder for adding setter\n        return super().charset\n\n    @charset.setter\n    def charset(self, value):\n        self._check_sending_started()\n        ctype = self.content_type  # read header values if needed\n        if ctype == 'application/octet-stream':\n            raise RuntimeError(\"Setting charset for application/octet-stream \"\n                               \"doesn't make sense, setup content_type first\")\n        if value is None:\n            self._content_dict.pop('charset', None)\n        else:\n            self._content_dict['charset'] = str(value)\n        self._generate_content_type_header()\n\n    def _generate_content_type_header(self):\n        params = '; '.join(\"%s=%s\" % i for i in self._content_dict.items())\n        if params:\n            ctype = self._content_type + '; ' + params\n        else:\n            ctype = self._content_type\n        self.headers['Content-Type'] = ctype\n\n    def set_chunked(self, chunk_size, buffered=True):\n        if self.content_length is not None:\n            raise RuntimeError(\n                \"Cannot use chunked encoding with Content-Length set up\")\n\n    def send_headers(self):\n        if self._resp_impl is not None:\n            raise RuntimeError(\"HTTP headers are already sent\")\n\n        self._check_sending_started()\n        self._request._response = weakref.ref(self)\n\n        resp_impl = self._resp_impl = ResponseImpl(\n            self._request._writer,\n            self._status,\n            self._request.version,\n            not self._keep_alive,\n            self._reason)\n\n        self._copy_cookies()\n\n        headers = self.headers.items(getall=True)\n        for key, val in headers:\n            resp_impl.add_header(key, val)\n\n        resp_impl.send_headers()\n\n    def write(self, data):\n        if not isinstance(data, (bytes, bytearray, memoryview)):\n            raise TypeError('data argument must be byte-ish (%r)',\n                            type(data))\n\n        if self._eof_sent:\n            raise RuntimeError(\"Cannot call write() after write_eof()\")\n        if self._resp_impl is None:\n            self.send_headers()\n\n        if data:\n            self._resp_impl.write(data)\n\n    @asyncio.coroutine\n    def write_eof(self):\n        if self._eof_sent:\n            return\n        if self._resp_impl is None:\n            raise RuntimeError(\"No headers has been sent\")\n\n        yield from self._resp_impl.write_eof()\n        self._eof_sent = True\n\n\nclass Response(StreamResponse):\n\n    def __init__(self, request, body=None, *,\n                 status=200, reason=None, headers=None):\n        super().__init__(request, status=status, reason=reason)\n        self.body = body\n        if headers is not None:\n            self.headers.extend(headers)\n\n    @property\n    def body(self):\n        return self._body\n\n    @body.setter\n    def body(self, body):\n        if body is not None and not isinstance(body, bytes):\n            raise TypeError('body argument must be bytes (%r)',\n                            type(body))\n        self._check_sending_started()\n        self._body = body\n        if body is not None:\n            self.content_length = len(body)\n        else:\n            self.content_length = 0\n\n    @asyncio.coroutine\n    def write_eof(self):\n        body = self._body\n        if self._resp_impl is None:\n            self.send_headers()\n        if body is not None:\n            self.write(body)\n        yield from super().write_eof()\n\n############################################################\n# HTTP Exceptions\n############################################################\n\n\nclass HTTPException(Response, Exception):\n\n    # You should set in subclasses:\n    # status = 200\n\n    status_code = None\n\n    def __init__(self, request, *, headers=None, reason=None):\n        Response.__init__(self, request, status=self.status_code,\n                          headers=headers, reason=reason)\n        Exception.__init__(self, self.reason)\n\n\nclass HTTPError(HTTPException):\n    \"\"\"Base class for exceptions with status codes in the 400s and 500s.\"\"\"\n\n\nclass HTTPRedirection(HTTPException):\n    \"\"\"Base class for exceptions with status codes in the 300s.\"\"\"\n\n\nclass HTTPSuccessful(HTTPException):\n    \"\"\"Base class for exceptions with status codes in the 200s.\"\"\"\n\n\nclass HTTPOk(HTTPSuccessful):\n    status_code = 200\n\n\nclass HTTPCreated(HTTPSuccessful):\n    status_code = 201\n\n\nclass HTTPAccepted(HTTPSuccessful):\n    status_code = 202\n\n\nclass HTTPNonAuthoritativeInformation(HTTPSuccessful):\n    status_code = 203\n\n\nclass HTTPNoContent(HTTPSuccessful):\n    status_code = 204\n\n\nclass HTTPResetContent(HTTPSuccessful):\n    status_code = 205\n\n\nclass HTTPPartialContent(HTTPSuccessful):\n    status_code = 206\n\n\n############################################################\n# 3xx redirection\n############################################################\n\n\nclass _HTTPMove(HTTPRedirection):\n\n    def __init__(self, request, location, *,  headers=None, reason=None):\n        if not location:\n            raise ValueError(\"HTTP redirects need a location to redirect to.\")\n        super().__init__(request, headers=headers, reason=reason)\n        self.headers['Location'] = location\n        self.location = location\n\n\nclass HTTPMultipleChoices(_HTTPMove):\n    status_code = 300\n\n\nclass HTTPMovedPermanently(_HTTPMove):\n    status_code = 301\n\n\nclass HTTPFound(_HTTPMove):\n    status_code = 302\n\n\n# This one is safe after a POST (the redirected location will be\n# retrieved with GET):\nclass HTTPSeeOther(_HTTPMove):\n    status_code = 303\n\n\nclass HTTPNotModified(HTTPRedirection):\n    # FIXME: this should include a date or etag header\n    status_code = 304\n\n\nclass HTTPUseProxy(_HTTPMove):\n    # Not a move, but looks a little like one\n    status_code = 305\n\n\nclass HTTPTemporaryRedirect(_HTTPMove):\n    status_code = 307\n\n\n############################################################\n# 4xx client error\n############################################################\n\n\nclass HTTPClientError(HTTPError):\n    pass\n\n\nclass HTTPBadRequest(HTTPClientError):\n    status_code = 400\n\n\nclass HTTPUnauthorized(HTTPClientError):\n    status_code = 401\n\n\nclass HTTPPaymentRequired(HTTPClientError):\n    status_code = 402\n\n\nclass HTTPForbidden(HTTPClientError):\n    status_code = 403\n\n\nclass HTTPNotFound(HTTPClientError):\n    status_code = 404\n\n\nclass HTTPMethodNotAllowed(HTTPClientError):\n    status_code = 405\n\n    def __init__(self, request, method, allowed_methods, *,\n                 headers=None, reason=None):\n        allow = ','.join(sorted(allowed_methods))\n        super().__init__(request, headers=headers, reason=reason)\n        self.headers['Allow'] = allow\n        self.allowed_methods = allowed_methods\n        self.method = method.upper()\n\n\nclass HTTPNotAcceptable(HTTPClientError):\n    status_code = 406\n\n\nclass HTTPProxyAuthenticationRequired(HTTPClientError):\n    status_code = 407\n\n\nclass HTTPRequestTimeout(HTTPClientError):\n    status_code = 408\n\n\nclass HTTPConflict(HTTPClientError):\n    status_code = 409\n\n\nclass HTTPGone(HTTPClientError):\n    status_code = 410\n\n\nclass HTTPLengthRequired(HTTPClientError):\n    status_code = 411\n\n\nclass HTTPPreconditionFailed(HTTPClientError):\n    status_code = 412\n\n\nclass HTTPRequestEntityTooLarge(HTTPClientError):\n    status_code = 413\n\n\nclass HTTPRequestURITooLong(HTTPClientError):\n    status_code = 414\n\n\nclass HTTPUnsupportedMediaType(HTTPClientError):\n    status_code = 415\n\n\nclass HTTPRequestRangeNotSatisfiable(HTTPClientError):\n    status_code = 416\n\n\nclass HTTPExpectationFailed(HTTPClientError):\n    status_code = 417\n\n\n############################################################\n# 5xx Server Error\n############################################################\n#  Response status codes beginning with the digit \"5\" indicate cases in\n#  which the server is aware that it has erred or is incapable of\n#  performing the request. Except when responding to a HEAD request, the\n#  server SHOULD include an entity containing an explanation of the error\n#  situation, and whether it is a temporary or permanent condition. User\n#  agents SHOULD display any included entity to the user. These response\n#  codes are applicable to any request method.\n\n\nclass HTTPServerError(HTTPError):\n    pass\n\n\nclass HTTPInternalServerError(HTTPServerError):\n    status_code = 500\n\n\nclass HTTPNotImplemented(HTTPServerError):\n    status_code = 501\n\n\nclass HTTPBadGateway(HTTPServerError):\n    status_code = 502\n\n\nclass HTTPServiceUnavailable(HTTPServerError):\n    status_code = 503\n\n\nclass HTTPGatewayTimeout(HTTPServerError):\n    status_code = 504\n\n\nclass HTTPVersionNotSupported(HTTPServerError):\n    status_code = 505\n\n\n############################################################\n# UrlDispatcher implementation\n############################################################\n\n\nclass UrlMappingMatchInfo(dict, AbstractMatchInfo):\n\n    def __init__(self, match_dict, entry):\n        super().__init__(match_dict)\n        self._entry = entry\n\n    @property\n    def handler(self):\n        return self._entry.handler\n\n\nEntry = collections.namedtuple('Entry', 'regex method handler')\n\n\nclass UrlDispatcher(AbstractRouter):\n\n    DYN = re.compile(r'^\\{[_a-zA-Z][_a-zA-Z0-9]*\\}$')\n    GOOD = r'[^{}/]+'\n    PLAIN = re.compile('^'+GOOD+'$')\n\n    METHODS = {'POST', 'GET', 'PUT', 'DELETE', 'PATCH', 'HEAD', 'OPTIONS'}\n\n    def __init__(self):\n        super().__init__()\n        self._urls = []\n\n    @asyncio.coroutine\n    def resolve(self, request):\n        path = request.path\n        method = request.method\n        allowed_methods = set()\n        for entry in self._urls:\n            match = entry.regex.match(path)\n            if match is None:\n                continue\n            if entry.method != method:\n                allowed_methods.add(entry.method)\n            else:\n                break\n        else:\n            if allowed_methods:\n                raise HTTPMethodNotAllowed(request, method, allowed_methods)\n            else:\n                raise HTTPNotFound(request)\n\n        matchdict = match.groupdict()\n        return UrlMappingMatchInfo(matchdict, entry)\n\n    def add_route(self, method, path, handler):\n        assert path.startswith('/')\n        assert callable(handler), handler\n        method = method.upper()\n        assert method in self.METHODS, method\n        regexp = []\n        for part in path.split('/'):\n            if not part:\n                continue\n            if self.DYN.match(part):\n                regexp.append('(?P<'+part[1:-1]+'>'+self.GOOD+')')\n            elif self.PLAIN.match(part):\n                regexp.append(part)\n            else:\n                raise ValueError(\"Invalid path '{}'['{}']\".format(path, part))\n        pattern = '/' + '/'.join(regexp)\n        if path.endswith('/') and pattern != '/':\n            pattern += '/'\n        try:\n            compiled = re.compile('^' + pattern + '$')\n        except re.error:\n            raise ValueError(\"Invalid path '{}'\".format(path))\n        self._urls.append(Entry(compiled, method, handler))\n\n\n############################################################\n# Application implementation\n############################################################\n\n\nclass RequestHandler(ServerHttpProtocol):\n\n    def __init__(self, app, **kwargs):\n        super().__init__(**kwargs)\n        self._app = app\n\n    @asyncio.coroutine\n    def handle_request(self, message, payload):\n        request = Request(self._app, message, payload, self.writer)\n        try:\n            match_info = yield from self._app.router.resolve(request)\n\n            request._match_info = match_info\n            handler = match_info.handler\n\n            resp = handler(request)\n            if (asyncio.iscoroutine(resp) or\n                    isinstance(resp, asyncio.Future)):\n                resp = yield from resp\n            if not isinstance(resp, StreamResponse):\n                raise RuntimeError((\"Handler should return response \"\n                                    \"instance, got {!r}\")\n                                   .format(type(resp)))\n        except HTTPException as exc:\n            resp = exc\n\n        yield from resp.write_eof()\n        if resp.keep_alive:\n            # Don't need to read request body if any on closing connection\n            yield from request.release()\n        self.keep_alive(resp.keep_alive)\n\n\nclass Application(dict):\n\n    def __init__(self, loop=None, *, router=None, **kwargs):\n        # TODO: explicitly accept *debug* param\n        if loop is None:\n            loop = asyncio.get_event_loop()\n        self._kwargs = kwargs\n        if router is None:\n            router = UrlDispatcher()\n        self._router = router\n        self._loop = loop\n        self._finish_callbacks = []\n\n    @property\n    def router(self):\n        return self._router\n\n    @property\n    def loop(self):\n        return self._loop\n\n    def make_handler(self):\n        return RequestHandler(self, loop=self._loop, **self._kwargs)\n\n    @asyncio.coroutine\n    def finish(self):\n        for (cb, args, kwargs) in self._finish_callbacks:\n            try:\n                res = cb(*args, **kwargs)\n                if (asyncio.iscoroutine(res) or\n                        isinstance(res, asyncio.Future)):\n                    yield from res\n            except Exception as exc:\n                self._loop.call_exception_handler({\n                    'message': \"Error in finish callback\",\n                    'exception': exc,\n                    'application': self,\n                })\n\n    def register_on_finish(self, cb, *args, **kwargs):\n        self._finish_callbacks.append((cb, args, kwargs))\n"}
A user will ask you to solve a task. You should first draft your thinking process (inner monologue). Then, generate the solution.

Your response format must follow the template below:
<think>
Your thoughts or/and draft, like working through an exercise on scratch paper. Be as casual and as long as you want until you are confident to generate a correct solution.
</think>
<solution>
Final solution presented to the user.
</solution>
system
We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
[ISSUE]
**Title:** Adding routes with special regex characters like '/+$' results in unresolved routes

**Description:**
When adding a route that includes special regex characters, such as `'/+$'`, the route fails to resolve correctly. This leads to the router not recognizing the path and returning a "Not Found" error.

**Example Code:**
```python
def test_add_url_escaping(self):
    handler = lambda req: Response(req)
    self.router.add_route('GET', '/+$', handler)

    req = self.make_request('GET', '/+$')
    info = self.loop.run_until_complete(self.router.resolve(req))
    # Expected to find the handler, but it fails to resolve
```

**Expected Behavior:**
The route `'/+$'` should be correctly escaped and resolved by the router, allowing the associated handler to be called without any errors.

**Actual Behavior:**
The router fails to recognize the route `'/+$'` due to unescaped special characters, resulting in a `HTTPNotFound` error when attempting to resolve the path.

[/ISSUE]
--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.

--- BEGIN FILE ---
```
### aiohttp/web.py
import asyncio
import binascii
import collections
import cgi
import http.cookies
import io
import json
import re
import weakref

from urllib.parse import urlsplit, parse_qsl, unquote

from .abc import AbstractRouter, AbstractMatchInfo
from .multidict import (CaseInsensitiveMultiDict,
                        CaseInsensitiveMutableMultiDict,
                        MultiDict,
                        MutableMultiDict)
from .protocol import Response as ResponseImpl, HttpVersion, HttpVersion11
from .server import ServerHttpProtocol
from .streams import EOF_MARKER


__all__ = [
    'Application',
    'HttpVersion',
    'Request',
    'StreamResponse',
    'Response',
    'UrlDispatcher',
    'UrlMappingMatchInfo',
    'HTTPException',
    'HTTPError',
    'HTTPRedirection',
    'HTTPSuccessful',
    'HTTPOk',
    'HTTPCreated',
    'HTTPAccepted',
    'HTTPNonAuthoritativeInformation',
    'HTTPNoContent',
    'HTTPResetContent',
    'HTTPPartialContent',
    'HTTPMultipleChoices',
    'HTTPMovedPermanently',
    'HTTPFound',
    'HTTPSeeOther',
    'HTTPNotModified',
    'HTTPUseProxy',
    'HTTPTemporaryRedirect',
    'HTTPClientError',
    'HTTPBadRequest',
    'HTTPUnauthorized',
    'HTTPPaymentRequired',
    'HTTPForbidden',
    'HTTPNotFound',
    'HTTPMethodNotAllowed',
    'HTTPNotAcceptable',
    'HTTPProxyAuthenticationRequired',
    'HTTPRequestTimeout',
    'HTTPConflict',
    'HTTPGone',
    'HTTPLengthRequired',
    'HTTPPreconditionFailed',
    'HTTPRequestEntityTooLarge',
    'HTTPRequestURITooLong',
    'HTTPUnsupportedMediaType',
    'HTTPRequestRangeNotSatisfiable',
    'HTTPExpectationFailed',
    'HTTPServerError',
    'HTTPInternalServerError',
    'HTTPNotImplemented',
    'HTTPBadGateway',
    'HTTPServiceUnavailable',
    'HTTPGatewayTimeout',
    'HTTPVersionNotSupported',
    ]


sentinel = object()


class HeadersMixin:

    _content_type = None
    _content_dict = None
    _stored_content_type = sentinel

    def _parse_content_type(self, raw):
        self._stored_content_type = raw
        if raw is None:
            # default value according to RFC 2616
            self._content_type = 'application/octet-stream'
            self._content_dict = {}
        else:
            self._content_type, self._content_dict = cgi.parse_header(raw)

    @property
    def content_type(self):
        """The value of content part for Content-Type HTTP header."""
        raw = self.headers.get('Content-Type')
        if self._stored_content_type != raw:
            self._parse_content_type(raw)
        return self._content_type

    @property
    def charset(self):
        """The value of charset part for Content-Type HTTP header."""
        # Assumes that charset is UTF8 if not specified
        raw = self.headers.get('Content-Type')
        if self._stored_content_type != raw:
            self._parse_content_type(raw)
        return self._content_dict.get('charset')

    @property
    def content_length(self):
        """The value of Content-Length HTTP header."""
        l = self.headers.get('Content-Length')
        if l is None:
            return None
        else:
            return int(l)


############################################################
# HTTP Request
############################################################


class Request(HeadersMixin):

    def __init__(self, app, message, payload, writer):
        self._app = app
        self._version = message.version
        self._writer = writer
        self._method = message.method
        self._host = message.headers.get('HOST')
        path = unquote(message.path)
        self._path_qs = path
        res = urlsplit(path)
        self._path = res.path
        self._query_string = res.query
        self._get = None
        self._post = None
        self._headers = CaseInsensitiveMultiDict._from_uppercase_multidict(
            message.headers)

        if self._version < HttpVersion11:
            self._keep_alive = False
        elif message.should_close:
            self._keep_alive = False
        else:
            self._keep_alive = True

        # matchdict, route_name, handler
        # or information about traversal lookup
        self._match_info = None  # initialized after route resolving

        self._payload = payload
        self._response = None
        self._cookies = None

    @property
    def method(self):
        """Read only property for getting HTTP method.

        The value is upper-cased str like 'GET', 'POST', 'PUT' etc.
        """
        return self._method

    @property
    def version(self):
        """Read only property for getting HTTP version of request.

        Returns aiohttp.protocol.HttpVersion instance.
        """
        return self._version

    @property
    def host(self):
        """Read only property for getting *HOST* header of request.

        Returns str or None if HTTP request has no HOST header.
        """
        return self._host

    @property
    def path_qs(self):
        """The URL including PATH_INFO and the query string.

        E.g, /app/blog?id=10
        """
        return self._path_qs

    @property
    def path(self):
        """The URL including *PATH INFO* without the host or scheme.

        E.g., ``/app/blog``
        """
        return self._path

    @property
    def query_string(self):
        """The query string in the URL.

        E.g., id=10
        """
        return self._query_string

    @property
    def GET(self):
        """A multidict with all the variables in the query string.

        Lazy property.
        """
        if self._get is None:
            self._get = MultiDict(parse_qsl(self._query_string))
        return self._get

    @property
    def headers(self):
        """A case-insensitive multidict with all headers.

        Lazy property.
        """
        return self._headers

    @property
    def keep_alive(self):
        """Is keepalive enabled by client?"""
        return self._keep_alive

    @property
    def match_info(self):
        """Result of route resolving."""
        return self._match_info

    @property
    def app(self):
        """Application instance."""
        return self._app

    @property
    def cookies(self):
        """Return request cookies.

        A read-only dictionary-like object.
        """
        if self._cookies is None:
            raw = self.headers.get('COOKIE', '')
            parsed = http.cookies.SimpleCookie(raw)
            self._cookies = MultiDict({key: val.value
                                       for key, val in parsed.items()})
        return self._cookies

    @property
    def payload(self):
        """Return raw paiload stream."""
        return self._payload

    @asyncio.coroutine
    def release(self):
        """Release request.

        Eat unread part of HTTP BODY if present.
        """
        chunk = yield from self._payload.readany()
        while chunk is not EOF_MARKER or chunk:
            chunk = yield from self._payload.readany()

    @asyncio.coroutine
    def read(self):
        """Read request body if present.

        Returns bytes object with full request content.
        """

        body = bytearray()
        while True:
            chunk = yield from self._payload.readany()
            body.extend(chunk)
            if chunk is EOF_MARKER:
                break
        return bytes(body)

    @asyncio.coroutine
    def text(self):
        """Return BODY as text using encoding from .charset."""
        bytes_body = yield from self.read()
        encoding = self.charset or 'utf-8'
        return bytes_body.decode(encoding)

    @asyncio.coroutine
    def json(self, *, loader=json.loads):
        """Return BODY as JSON."""
        body = yield from self.text()
        return loader(body)

    @asyncio.coroutine
    def POST(self):
        """Return POST parameters."""
        if self._post is not None:
            return self._post
        if self.method not in ('POST', 'PUT', 'PATCH'):
            self._post = MultiDict()
            return self._post
        content_type = self.content_type
        if (content_type not in ('',
                                 'application/x-www-form-urlencoded',
                                 'multipart/form-data')):
            self._post = MultiDict()
            return self._post

        body = yield from self.read()
        content_charset = self.charset or 'utf-8'

        environ = {'REQUEST_METHOD': self.method,
                   'CONTENT_LENGTH': str(len(body)),
                   'QUERY_STRING': '',
                   'CONTENT_TYPE': self.headers.get('CONTENT-TYPE')}

        fs = cgi.FieldStorage(fp=io.BytesIO(body),
                              environ=environ,
                              keep_blank_values=True,
                              encoding=content_charset)

        supported_tranfer_encoding = {
            'base64': binascii.a2b_base64,
            'quoted-printable': binascii.a2b_qp
        }
        out = MutableMultiDict()
        for field in fs.list or ():
            charset = field.type_options.get('charset', 'utf-8')
            transfer_encoding = field.headers.get('Content-Transfer-Encoding',
                                                  None)
            if charset == 'utf-8':
                decode = lambda b: b
            else:
                decode = lambda b: b.encode('utf-8').decode(charset)
            if field.filename:
                field.filename = decode(field.filename)
                out.add(field.name, field)
            else:
                value = field.value
                if transfer_encoding in supported_tranfer_encoding:
                    # binascii accepts bytes
                    value = value.encode('utf-8')
                    value = supported_tranfer_encoding[
                        transfer_encoding](value)
                    # binascii returns bytes
                    value = value.decode('utf-8')
                out.add(field.name, decode(value))
        self._post = MultiDict(out)
        return self._post

    @asyncio.coroutine
    def start_websocket(self):
        """Upgrade connection to websocket.

        Returns (reader, writer) pair.
        """

############################################################
# HTTP Response classes
############################################################


class StreamResponse(HeadersMixin):

    def __init__(self, request, *, status=200, reason=None):
        self._request = request
        self._headers = CaseInsensitiveMutableMultiDict()
        self._status = int(status)
        if reason is None:
            reason = ResponseImpl.calc_reason(status)
        self._reason = reason
        self._cookies = http.cookies.SimpleCookie()
        self._deleted_cookies = set()
        self._keep_alive = request.keep_alive

        self._resp_impl = None
        self._eof_sent = False

    def _copy_cookies(self):
        for cookie in self._cookies.values():
            value = cookie.output(header='')[1:]
            self.headers.add('Set-Cookie', value)

    def _check_sending_started(self):
        resp = self._request._response
        if resp is not None:
            resp = resp()  # dereference weakref
        if resp is not None:
            raise RuntimeError(("Response {!r} already started to send"
                                " data").format(resp))

    @property
    def request(self):
        return self._request

    @property
    def status(self):
        return self._status

    @property
    def reason(self):
        return self._reason

    @property
    def keep_alive(self):
        return self._keep_alive

    def force_close(self):
        self._keep_alive = False

    @property
    def headers(self):
        return self._headers

    @property
    def cookies(self):
        return self._cookies

    def set_cookie(self, name, value, *, expires=None,
                   domain=None, max_age=None, path=None,
                   secure=None, httponly=None, version=None):
        """Set or update response cookie.

        Sets new cookie or updates existent with new value.
        Also updates only those params which are not None.
        """

        self._check_sending_started()
        if name in self._deleted_cookies:
            self._deleted_cookies.remove(name)
            self._cookies.pop(name, None)

        self._cookies[name] = value
        c = self._cookies[name]
        if expires is not None:
            c['expires'] = expires
        if domain is not None:
            c['domain'] = domain
        if max_age is not None:
            c['max-age'] = max_age
        if path is not None:
            c['path'] = path
        if secure is not None:
            c['secure'] = secure
        if httponly is not None:
            c['httponly'] = httponly
        if version is not None:
            c['version'] = version

    def del_cookie(self, name, *, domain=None, path=None):
        """Delete cookie.

        Creates new empty expired cookie.
        """
        # TODO: do we need domain/path here?
        self._check_sending_started()
        self._cookies.pop(name, None)
        self.set_cookie(name, '', max_age=0, domain=domain, path=path)
        self._deleted_cookies.add(name)

    @property
    def content_length(self):
        # Just a placeholder for adding setter
        return super().content_length

    @content_length.setter
    def content_length(self, value):
        self._check_sending_started()
        if value is not None:
            value = int(value)
            # TODO: raise error if chunked enabled
            self.headers['Content-Length'] = str(value)
        elif 'Content-Length' in self.headers:
            del self.headers['Content-Length']

    @property
    def content_type(self):
        # Just a placeholder for adding setter
        return super().content_type

    @content_type.setter
    def content_type(self, value):
        self._check_sending_started()
        self.content_type  # read header values if needed
        self._content_type = str(value)
        self._generate_content_type_header()

    @property
    def charset(self):
        # Just a placeholder for adding setter
        return super().charset

    @charset.setter
    def charset(self, value):
        self._check_sending_started()
        ctype = self.content_type  # read header values if needed
        if ctype == 'application/octet-stream':
            raise RuntimeError("Setting charset for application/octet-stream "
                               "doesn't make sense, setup content_type first")
        if value is None:
            self._content_dict.pop('charset', None)
        else:
            self._content_dict['charset'] = str(value)
        self._generate_content_type_header()

    def _generate_content_type_header(self):
        params = '; '.join("%s=%s" % i for i in self._content_dict.items())
        if params:
            ctype = self._content_type + '; ' + params
        else:
            ctype = self._content_type
        self.headers['Content-Type'] = ctype

    def set_chunked(self, chunk_size, buffered=True):
        if self.content_length is not None:
            raise RuntimeError(
                "Cannot use chunked encoding with Content-Length set up")

    def send_headers(self):
        if self._resp_impl is not None:
            raise RuntimeError("HTTP headers are already sent")

        self._check_sending_started()
        self._request._response = weakref.ref(self)

        resp_impl = self._resp_impl = ResponseImpl(
            self._request._writer,
            self._status,
            self._request.version,
            not self._keep_alive,
            self._reason)

        self._copy_cookies()

        headers = self.headers.items(getall=True)
        for key, val in headers:
            resp_impl.add_header(key, val)

        resp_impl.send_headers()

    def write(self, data):
        if not isinstance(data, (bytes, bytearray, memoryview)):
            raise TypeError('data argument must be byte-ish (%r)',
                            type(data))

        if self._eof_sent:
            raise RuntimeError("Cannot call write() after write_eof()")
        if self._resp_impl is None:
            self.send_headers()

        if data:
            self._resp_impl.write(data)

    @asyncio.coroutine
    def write_eof(self):
        if self._eof_sent:
            return
        if self._resp_impl is None:
            raise RuntimeError("No headers has been sent")

        yield from self._resp_impl.write_eof()
        self._eof_sent = True


class Response(StreamResponse):

    def __init__(self, request, body=None, *,
                 status=200, reason=None, headers=None):
        super().__init__(request, status=status, reason=reason)
        self.body = body
        if headers is not None:
            self.headers.extend(headers)

    @property
    def body(self):
        return self._body

    @body.setter
    def body(self, body):
        if body is not None and not isinstance(body, bytes):
            raise TypeError('body argument must be bytes (%r)',
                            type(body))
        self._check_sending_started()
        self._body = body
        if body is not None:
            self.content_length = len(body)
        else:
            self.content_length = 0

    @asyncio.coroutine
    def write_eof(self):
        body = self._body
        if self._resp_impl is None:
            self.send_headers()
        if body is not None:
            self.write(body)
        yield from super().write_eof()

############################################################
# HTTP Exceptions
############################################################


class HTTPException(Response, Exception):

    # You should set in subclasses:
    # status = 200

    status_code = None

    def __init__(self, request, *, headers=None, reason=None):
        Response.__init__(self, request, status=self.status_code,
                          headers=headers, reason=reason)
        Exception.__init__(self, self.reason)


class HTTPError(HTTPException):
    """Base class for exceptions with status codes in the 400s and 500s."""


class HTTPRedirection(HTTPException):
    """Base class for exceptions with status codes in the 300s."""


class HTTPSuccessful(HTTPException):
    """Base class for exceptions with status codes in the 200s."""


class HTTPOk(HTTPSuccessful):
    status_code = 200


class HTTPCreated(HTTPSuccessful):
    status_code = 201


class HTTPAccepted(HTTPSuccessful):
    status_code = 202


class HTTPNonAuthoritativeInformation(HTTPSuccessful):
    status_code = 203


class HTTPNoContent(HTTPSuccessful):
    status_code = 204


class HTTPResetContent(HTTPSuccessful):
    status_code = 205


class HTTPPartialContent(HTTPSuccessful):
    status_code = 206


############################################################
# 3xx redirection
############################################################


class _HTTPMove(HTTPRedirection):

    def __init__(self, request, location, *,  headers=None, reason=None):
        if not location:
            raise ValueError("HTTP redirects need a location to redirect to.")
        super().__init__(request, headers=headers, reason=reason)
        self.headers['Location'] = location
        self.location = location


class HTTPMultipleChoices(_HTTPMove):
    status_code = 300


class HTTPMovedPermanently(_HTTPMove):
    status_code = 301


class HTTPFound(_HTTPMove):
    status_code = 302


# This one is safe after a POST (the redirected location will be
# retrieved with GET):
class HTTPSeeOther(_HTTPMove):
    status_code = 303


class HTTPNotModified(HTTPRedirection):
    # FIXME: this should include a date or etag header
    status_code = 304


class HTTPUseProxy(_HTTPMove):
    # Not a move, but looks a little like one
    status_code = 305


class HTTPTemporaryRedirect(_HTTPMove):
    status_code = 307


############################################################
# 4xx client error
############################################################


class HTTPClientError(HTTPError):
    pass


class HTTPBadRequest(HTTPClientError):
    status_code = 400


class HTTPUnauthorized(HTTPClientError):
    status_code = 401


class HTTPPaymentRequired(HTTPClientError):
    status_code = 402


class HTTPForbidden(HTTPClientError):
    status_code = 403


class HTTPNotFound(HTTPClientError):
    status_code = 404


class HTTPMethodNotAllowed(HTTPClientError):
    status_code = 405

    def __init__(self, request, method, allowed_methods, *,
                 headers=None, reason=None):
        allow = ','.join(sorted(allowed_methods))
        super().__init__(request, headers=headers, reason=reason)
        self.headers['Allow'] = allow
        self.allowed_methods = allowed_methods
        self.method = method.upper()


class HTTPNotAcceptable(HTTPClientError):
    status_code = 406


class HTTPProxyAuthenticationRequired(HTTPClientError):
    status_code = 407


class HTTPRequestTimeout(HTTPClientError):
    status_code = 408


class HTTPConflict(HTTPClientError):
    status_code = 409


class HTTPGone(HTTPClientError):
    status_code = 410


class HTTPLengthRequired(HTTPClientError):
    status_code = 411


class HTTPPreconditionFailed(HTTPClientError):
    status_code = 412


class HTTPRequestEntityTooLarge(HTTPClientError):
    status_code = 413


class HTTPRequestURITooLong(HTTPClientError):
    status_code = 414


class HTTPUnsupportedMediaType(HTTPClientError):
    status_code = 415


class HTTPRequestRangeNotSatisfiable(HTTPClientError):
    status_code = 416


class HTTPExpectationFailed(HTTPClientError):
    status_code = 417


############################################################
# 5xx Server Error
############################################################
#  Response status codes beginning with the digit "5" indicate cases in
#  which the server is aware that it has erred or is incapable of
#  performing the request. Except when responding to a HEAD request, the
#  server SHOULD include an entity containing an explanation of the error
#  situation, and whether it is a temporary or permanent condition. User
#  agents SHOULD display any included entity to the user. These response
#  codes are applicable to any request method.


class HTTPServerError(HTTPError):
    pass


class HTTPInternalServerError(HTTPServerError):
    status_code = 500


class HTTPNotImplemented(HTTPServerError):
    status_code = 501


class HTTPBadGateway(HTTPServerError):
    status_code = 502


class HTTPServiceUnavailable(HTTPServerError):
    status_code = 503


class HTTPGatewayTimeout(HTTPServerError):
    status_code = 504


class HTTPVersionNotSupported(HTTPServerError):
    status_code = 505


############################################################
# UrlDispatcher implementation
############################################################


class UrlMappingMatchInfo(dict, AbstractMatchInfo):

    def __init__(self, match_dict, entry):
        super().__init__(match_dict)
        self._entry = entry

    @property
    def handler(self):
        return self._entry.handler


Entry = collections.namedtuple('Entry', 'regex method handler')


class UrlDispatcher(AbstractRouter):

    DYN = re.compile(r'^\{[_a-zA-Z][_a-zA-Z0-9]*\}$')
    GOOD = r'[^{}/]+'
    PLAIN = re.compile('^'+GOOD+'$')

    METHODS = {'POST', 'GET', 'PUT', 'DELETE', 'PATCH', 'HEAD', 'OPTIONS'}

    def __init__(self):
        super().__init__()
        self._urls = []

    @asyncio.coroutine
    def resolve(self, request):
        path = request.path
        method = request.method
        allowed_methods = set()
        for entry in self._urls:
            match = entry.regex.match(path)
            if match is None:
                continue
            if entry.method != method:
                allowed_methods.add(entry.method)
            else:
                break
        else:
            if allowed_methods:
                raise HTTPMethodNotAllowed(request, method, allowed_methods)
            else:
                raise HTTPNotFound(request)

        matchdict = match.groupdict()
        return UrlMappingMatchInfo(matchdict, entry)

    def add_route(self, method, path, handler):
        assert path.startswith('/')
        assert callable(handler), handler
        method = method.upper()
        assert method in self.METHODS, method
        regexp = []
        for part in path.split('/'):
            if not part:
                continue
            if self.DYN.match(part):
                regexp.append('(?P<'+part[1:-1]+'>'+self.GOOD+')')
            elif self.PLAIN.match(part):
                regexp.append(part)
            else:
                raise ValueError("Invalid path '{}'['{}']".format(path, part))
        pattern = '/' + '/'.join(regexp)
        if path.endswith('/') and pattern != '/':
            pattern += '/'
        try:
            compiled = re.compile('^' + pattern + '$')
        except re.error:
            raise ValueError("Invalid path '{}'".format(path))
        self._urls.append(Entry(compiled, method, handler))


############################################################
# Application implementation
############################################################


class RequestHandler(ServerHttpProtocol):

    def __init__(self, app, **kwargs):
        super().__init__(**kwargs)
        self._app = app

    @asyncio.coroutine
    def handle_request(self, message, payload):
        request = Request(self._app, message, payload, self.writer)
        try:
            match_info = yield from self._app.router.resolve(request)

            request._match_info = match_info
            handler = match_info.handler

            resp = handler(request)
            if (asyncio.iscoroutine(resp) or
                    isinstance(resp, asyncio.Future)):
                resp = yield from resp
            if not isinstance(resp, StreamResponse):
                raise RuntimeError(("Handler should return response "
                                    "instance, got {!r}")
                                   .format(type(resp)))
        except HTTPException as exc:
            resp = exc

        yield from resp.write_eof()
        if resp.keep_alive:
            # Don't need to read request body if any on closing connection
            yield from request.release()
        self.keep_alive(resp.keep_alive)


class Application(dict):

    def __init__(self, loop=None, *, router=None, **kwargs):
        # TODO: explicitly accept *debug* param
        if loop is None:
            loop = asyncio.get_event_loop()
        self._kwargs = kwargs
        if router is None:
            router = UrlDispatcher()
        self._router = router
        self._loop = loop
        self._finish_callbacks = []

    @property
    def router(self):
        return self._router

    @property
    def loop(self):
        return self._loop

    def make_handler(self):
        return RequestHandler(self, loop=self._loop, **self._kwargs)

    @asyncio.coroutine
    def finish(self):
        for (cb, args, kwargs) in self._finish_callbacks:
            try:
                res = cb(*args, **kwargs)
                if (asyncio.iscoroutine(res) or
                        isinstance(res, asyncio.Future)):
                    yield from res
            except Exception as exc:
                self._loop.call_exception_handler({
                    'message': "Error in finish callback",
                    'exception': exc,
                    'application': self,
                })

    def register_on_finish(self, cb, *args, **kwargs):
        self._finish_callbacks.append((cb, args, kwargs))

```
--- END FILE ---

Please first localize the bug based on the issue statement, and then generate *SEARCH/REPLACE* edits to fix the issue.

Every *SEARCH/REPLACE* edit must use this format:
1. The file path
2. The start of search block: <<<<<<< SEARCH
3. A contiguous chunk of lines to search for in the existing source code
4. The dividing line: =======
5. The lines to replace into the source code
6. The end of the replace block: >>>>>>> REPLACE

Here is an example:

```python
### mathweb/flask/app.py
<<<<<<< SEARCH
from flask import Flask
=======
import math
from flask import Flask
>>>>>>> REPLACE
```
</solution>

Please note that the *SEARCH/REPLACE* edit REQUIRES PROPER INDENTATION. If you would like to add the line '        print(x)', you must fully write that out, with all those spaces before the code!
Wrap each *SEARCH/REPLACE* edit in a code block as shown in the example above. If you have multiple *SEARCH/REPLACE* edits, use a separate code block for each one.
user