1// Copyright 2014 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 "components/metrics/net/net_metrics_log_uploader.h"
6
7#include "base/metrics/histogram.h"
8#include "net/base/load_flags.h"
9#include "net/url_request/url_fetcher.h"
10#include "url/gurl.h"
11
12namespace metrics {
13
14NetMetricsLogUploader::NetMetricsLogUploader(
15    net::URLRequestContextGetter* request_context_getter,
16    const std::string& server_url,
17    const std::string& mime_type,
18    const base::Callback<void(int)>& on_upload_complete)
19    : MetricsLogUploader(server_url, mime_type, on_upload_complete),
20      request_context_getter_(request_context_getter) {
21}
22
23NetMetricsLogUploader::~NetMetricsLogUploader() {
24}
25
26bool NetMetricsLogUploader::UploadLog(const std::string& compressed_log_data,
27                                      const std::string& log_hash) {
28  current_fetch_.reset(
29      net::URLFetcher::Create(GURL(server_url_), net::URLFetcher::POST, this));
30  current_fetch_->SetRequestContext(request_context_getter_);
31  current_fetch_->SetUploadData(mime_type_, compressed_log_data);
32
33  // Tell the server that we're uploading gzipped protobufs.
34  current_fetch_->SetExtraRequestHeaders("content-encoding: gzip");
35
36  DCHECK(!log_hash.empty());
37  current_fetch_->AddExtraRequestHeader("X-Chrome-UMA-Log-SHA1: " + log_hash);
38
39  // We already drop cookies server-side, but we might as well strip them out
40  // client-side as well.
41  current_fetch_->SetLoadFlags(net::LOAD_DO_NOT_SAVE_COOKIES |
42                               net::LOAD_DO_NOT_SEND_COOKIES);
43  current_fetch_->Start();
44  return true;
45}
46
47void NetMetricsLogUploader::OnURLFetchComplete(const net::URLFetcher* source) {
48  // We're not allowed to re-use the existing |URLFetcher|s, so free them here.
49  // Note however that |source| is aliased to the fetcher, so we should be
50  // careful not to delete it too early.
51  DCHECK_EQ(current_fetch_.get(), source);
52
53  int response_code = source->GetResponseCode();
54  if (response_code == net::URLFetcher::RESPONSE_CODE_INVALID)
55    response_code = -1;
56  on_upload_complete_.Run(response_code);
57  current_fetch_.reset();
58}
59
60}  // namespace metrics
61