net/url_request/url_request_simple_job.cc

   1 // Copyright (c) 2011 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/url_request/url_request_simple_job.h"
   6
   7 #include "base/compiler_specific.h"
   8 #include "base/message_loop.h"
   9 #include "net/base/io_buffer.h"
  10 #include "net/base/net_errors.h"
  11 #include "net/url_request/url_request_status.h"
  12
  13 namespace net {
  14
  15 URLRequestSimpleJob::URLRequestSimpleJob(URLRequest* request)
  16     : URLRequestJob(request),
  17       data_offset_(0),
  18       ALLOW_THIS_IN_INITIALIZER_LIST(method_factory_(this)) {}
  19
  20 void URLRequestSimpleJob::Start() {
  21   // Start reading asynchronously so that all error reporting and data
  22   // callbacks happen as they would for network requests.
  23   MessageLoop::current()->PostTask(
  24       FROM_HERE,
  25       method_factory_.NewRunnableMethod(&URLRequestSimpleJob::StartAsync));
  26 }
  27
  28 bool URLRequestSimpleJob::GetMimeType(std::string* mime_type) const {
  29   *mime_type = mime_type_;
  30   return true;
  31 }
  32
  33 bool URLRequestSimpleJob::GetCharset(std::string* charset) {
  34   *charset = charset_;
  35   return true;
  36 }
  37
  38 URLRequestSimpleJob::~URLRequestSimpleJob() {}
  39
  40 bool URLRequestSimpleJob::ReadRawData(IOBuffer* buf, int buf_size,
  41                                       int* bytes_read) {
  42   DCHECK(bytes_read);
  43   int remaining = static_cast<int>(data_.size()) - data_offset_;
  44   if (buf_size > remaining)
  45     buf_size = remaining;
  46   memcpy(buf->data(), data_.data() + data_offset_, buf_size);
  47   data_offset_ += buf_size;
  48   *bytes_read = buf_size;
  49   return true;
  50 }
  51
  52 void URLRequestSimpleJob::StartAsync() {
  53   if (!request_)
  54     return;
  55
  56   if (GetData(&mime_type_, &charset_, &data_)) {
  57     // Notify that the headers are complete
  58     NotifyHeadersComplete();
  59   } else {
  60     // what should the error code be?
  61     NotifyStartError(URLRequestStatus(URLRequestStatus::FAILED,
  62                                       ERR_INVALID_URL));
  63   }
  64 }
  65
  66 }  // namespace net