net/http/http_basic_state.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "net/http/http_basic_state.h"
   6
   7 #include "base/basictypes.h"
   8 #include "base/logging.h"
   9 #include "net/base/io_buffer.h"
  10 #include "net/http/http_request_info.h"
  11 #include "net/http/http_response_body_drainer.h"
  12 #include "net/http/http_stream_parser.h"
  13 #include "net/http/http_util.h"
  14 #include "net/socket/client_socket_handle.h"
  15 #include "url/gurl.h"
  16
  17 namespace net {
  18
  19 HttpBasicState::HttpBasicState(ClientSocketHandle* connection, bool using_proxy)
  20     : read_buf_(new GrowableIOBuffer()),
  21       connection_(connection),
  22       using_proxy_(using_proxy),
  23       request_info_(NULL) {}
  24
  25 HttpBasicState::~HttpBasicState() {}
  26
  27 int HttpBasicState::Initialize(const HttpRequestInfo* request_info,
  28                                RequestPriority priority,
  29                                const BoundNetLog& net_log,
  30                                const CompletionCallback& callback) {
  31   DCHECK(!parser_.get());
  32   request_info_ = request_info;
  33   parser_.reset(new HttpStreamParser(
  34       connection_.get(), request_info, read_buf_.get(), net_log));
  35   return OK;
  36 }
  37
  38 scoped_ptr<ClientSocketHandle> HttpBasicState::ReleaseConnection() {
  39   return connection_.Pass();
  40 }
  41
  42 void HttpBasicState::DeleteParser() { parser_.reset(); }
  43
  44 std::string HttpBasicState::GenerateRequestLine() const {
  45   static const char kSuffix[] = " HTTP/1.1\r\n";
  46   const size_t kSuffixLen = arraysize(kSuffix) - 1;
  47   DCHECK(request_info_);
  48   const GURL& url = request_info_->url;
  49   const std::string path = using_proxy_ ? HttpUtil::SpecForRequest(url)
  50                                         : HttpUtil::PathForRequest(url);
  51   // Don't use StringPrintf for concatenation because it is very inefficient.
  52   std::string request_line;
  53   const size_t expected_size = request_info_->method.size() + 1 + path.size() +
  54       kSuffixLen;
  55   request_line.reserve(expected_size);
  56   request_line.append(request_info_->method);
  57   request_line.append(1, ' ');
  58   request_line.append(path);
  59   request_line.append(kSuffix, kSuffixLen);
  60   DCHECK_EQ(expected_size, request_line.size());
  61   return request_line;
  62 }
  63
  64 }  // namespace net