Revert 167627 - HTTP server for testing Google APIs

chrome/browser/google_apis/test_server/http_request.h

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CHROME_BROWSER_GOOGLE_APIS_TEST_SERVER_HTTP_REQUEST_H_
-#define CHROME_BROWSER_GOOGLE_APIS_TEST_SERVER_HTTP_REQUEST_H_
-
-#include <map>
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/string_piece.h"
-#include "googleurl/src/gurl.h"
-
-namespace drive {
-namespace test_server {
-
-enum HttpMethod {
-  UNKNOWN,
-  GET,
-  HEAD,
-  POST,
-  PUT,
-  DELETE,
-};
-
-// Represents a HTTP request. Since it can be big, use scoped_ptr to pass it
-// instead of copying.
-struct HttpRequest {
-  HttpRequest();
-  ~HttpRequest();
-
-  GURL url;
-  HttpMethod method;
-  std::map<std::string, std::string> headers;
-  std::string content;
-  bool has_content;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(HttpRequest);
-};
-
-// Parses the input data and produces a valid HttpRequest object. If there is
-// more than one request in one chunk, then only the first one will be parsed.
-// The common use is as below:
-// HttpRequestParser parser;
-// (...)
-// void OnDataChunkReceived(Socket* socket, const char* data, int size) {
-//   parser.ProcessChunk(std::string(data, size));
-//   if (parser.ParseRequest() == HttpRequestParser::ACCEPTED) {
-//     scoped_ptr<HttpRequest> request = parser.GetRequest();
-//     (... process the request ...)
-//   }
-class HttpRequestParser {
- public:
-  // Parsing result.
-  enum ParseResult {
-    WAITING,  // A request is not completed yet, waiting for more data.
-    ACCEPTED,  // A request has been parsed and it is ready to be processed.
-  };
-
-  // Parser state.
-  enum State {
-    STATE_HEADERS,  // Waiting for a request headers.
-    STATE_CONTENT,  // Waiting for content data.
-    STATE_ACCEPTED,  // Request has been parsed.
-  };
-
-  HttpRequestParser();
-  ~HttpRequestParser();
-
-  // Adds chunk of data into the internal buffer.
-  void ProcessChunk(const base::StringPiece& data);
-
-  // Parses the http request (including data - if provided).
-  // If returns ACCEPTED, then it means that the whole request has been found
-  // in the internal buffer (and parsed). After calling GetRequest(), it will be
-  // ready to parse another request.
-  ParseResult ParseRequest();
-
-  // Retrieves parsed request. Can be only called, when the parser is in
-  // STATE_ACCEPTED state. After calling it, the parser is ready to parse
-  // another request.
-  scoped_ptr<HttpRequest> GetRequest();
-
- private:
-  scoped_ptr<HttpRequest> http_request_;
-  std::string buffer_;
-  size_t buffer_position_;  // Current position in the internal buffer.
-  State state_;
-  // Content length of the request currently being parsed.
-  size_t declared_content_length_;
-
-  HttpMethod GetMethodType(const std::string& token) const;
-
-  // Parses headers and returns ACCEPTED if whole request was parsed. Otherwise
-  // returns WAITING.
-  ParseResult ParseHeaders();
-
-  // Parses request's content data and returns ACCEPTED if all of it have been
-  // processed. Chunked Transfer Encoding *is not* supported.
-  ParseResult ParseContent();
-
-  // Fetches the next line from the buffer. Result does not contain \r\n.
-  // Returns an empty string for an empty line. It will assert if there is
-  // no line available.
-  std::string ShiftLine();
-};
-
-}  // namespace test_server
-}  // namespace drive
-
-#endif  // CHROME_BROWSER_GOOGLE_APIS_TEST_SERVER_HTTP_REQUEST_H_