components/metrics/net/net_metrics_log_uploader.cc

   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/base/network_change_notifier.h"
  10 #include "net/url_request/url_fetcher.h"
  11 #include "url/gurl.h"
  12
  13 namespace {
  14
  15 // Records the network connection type if upload was successful.
  16 void RecordConnectionType(int response_code) {
  17   if (response_code == 200) {
  18     UMA_HISTOGRAM_ENUMERATION("UMA.LogUpload.ConnetionType",
  19                               net::NetworkChangeNotifier::GetConnectionType(),
  20                               net::NetworkChangeNotifier::CONNECTION_LAST);
  21   }
  22 }
  23
  24 }  // namespace
  25
  26 namespace metrics {
  27
  28 NetMetricsLogUploader::NetMetricsLogUploader(
  29     net::URLRequestContextGetter* request_context_getter,
  30     const std::string& server_url,
  31     const std::string& mime_type,
  32     const base::Callback<void(int)>& on_upload_complete)
  33     : MetricsLogUploader(server_url, mime_type, on_upload_complete),
  34       request_context_getter_(request_context_getter) {
  35 }
  36
  37 NetMetricsLogUploader::~NetMetricsLogUploader() {
  38 }
  39
  40 bool NetMetricsLogUploader::UploadLog(const std::string& compressed_log_data,
  41                                       const std::string& log_hash) {
  42   current_fetch_ =
  43       net::URLFetcher::Create(GURL(server_url_), net::URLFetcher::POST, this);
  44   current_fetch_->SetRequestContext(request_context_getter_);
  45   current_fetch_->SetUploadData(mime_type_, compressed_log_data);
  46
  47   // Tell the server that we're uploading gzipped protobufs.
  48   current_fetch_->SetExtraRequestHeaders("content-encoding: gzip");
  49
  50   DCHECK(!log_hash.empty());
  51   current_fetch_->AddExtraRequestHeader("X-Chrome-UMA-Log-SHA1: " + log_hash);
  52
  53   // We already drop cookies server-side, but we might as well strip them out
  54   // client-side as well.
  55   current_fetch_->SetLoadFlags(net::LOAD_DO_NOT_SAVE_COOKIES |
  56                                net::LOAD_DO_NOT_SEND_COOKIES);
  57   current_fetch_->Start();
  58   return true;
  59 }
  60
  61 void NetMetricsLogUploader::OnURLFetchComplete(const net::URLFetcher* source) {
  62   // We're not allowed to re-use the existing |URLFetcher|s, so free them here.
  63   // Note however that |source| is aliased to the fetcher, so we should be
  64   // careful not to delete it too early.
  65   DCHECK_EQ(current_fetch_.get(), source);
  66
  67   int response_code = source->GetResponseCode();
  68   if (response_code == net::URLFetcher::RESPONSE_CODE_INVALID)
  69     response_code = -1;
  70   current_fetch_.reset();
  71   RecordConnectionType(response_code);
  72   on_upload_complete_.Run(response_code);
  73 }
  74
  75 }  // namespace metrics