chrome/browser/upload_list.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 "chrome/browser/upload_list.h"
   6
   7 #include <algorithm>
   8 #include <iterator>
   9
  10 #include "base/bind.h"
  11 #include "base/file_util.h"
  12 #include "base/strings/string_number_conversions.h"
  13 #include "base/strings/string_split.h"
  14 #include "content/public/browser/browser_thread.h"
  15
  16 using content::BrowserThread;
  17
  18 UploadList::UploadInfo::UploadInfo(const std::string& c, const base::Time& t)
  19     : id(c), time(t) {}
  20
  21 UploadList::UploadInfo::~UploadInfo() {}
  22
  23 UploadList::UploadList(Delegate* delegate,
  24                        const base::FilePath& upload_log_path)
  25     : delegate_(delegate),
  26       upload_log_path_(upload_log_path) {}
  27
  28 UploadList::~UploadList() {}
  29
  30 void UploadList::LoadUploadListAsynchronously() {
  31   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  32   BrowserThread::PostBlockingPoolTask(
  33       FROM_HERE,
  34       base::Bind(&UploadList::LoadUploadListAndInformDelegateOfCompletion,
  35                  this));
  36 }
  37
  38 void UploadList::ClearDelegate() {
  39   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  40   delegate_ = NULL;
  41 }
  42
  43 void UploadList::LoadUploadListAndInformDelegateOfCompletion() {
  44   LoadUploadList();
  45   BrowserThread::PostTask(
  46       BrowserThread::UI,
  47       FROM_HERE,
  48       base::Bind(&UploadList::InformDelegateOfCompletion, this));
  49 }
  50
  51 void UploadList::LoadUploadList() {
  52   if (base::PathExists(upload_log_path_)) {
  53     std::string contents;
  54     file_util::ReadFileToString(upload_log_path_, &contents);
  55     std::vector<std::string> log_entries;
  56     base::SplitStringAlongWhitespace(contents, &log_entries);
  57     ParseLogEntries(log_entries);
  58   }
  59 }
  60
  61 void UploadList::AppendUploadInfo(const UploadInfo& info) {
  62   uploads_.push_back(info);
  63 }
  64
  65 void UploadList::ParseLogEntries(
  66     const std::vector<std::string>& log_entries) {
  67   std::vector<std::string>::const_reverse_iterator i;
  68   for (i = log_entries.rbegin(); i != log_entries.rend(); ++i) {
  69     std::vector<std::string> components;
  70     base::SplitString(*i, ',', &components);
  71     // Skip any blank (or corrupted) lines.
  72     if (components.size() != 2)
  73       continue;
  74     double seconds_since_epoch;
  75     if (!base::StringToDouble(components[0], &seconds_since_epoch))
  76       continue;
  77     UploadInfo info(components[1],
  78                     base::Time::FromDoubleT(seconds_since_epoch));
  79     uploads_.push_back(info);
  80   }
  81 }
  82
  83 void UploadList::InformDelegateOfCompletion() {
  84   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  85   if (delegate_)
  86     delegate_->OnUploadListAvailable();
  87 }
  88
  89 void UploadList::GetUploads(unsigned int max_count,
  90                             std::vector<UploadInfo>* uploads) {
  91   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
  92   std::copy(uploads_.begin(),
  93             uploads_.begin() + std::min<size_t>(uploads_.size(), max_count),
  94             std::back_inserter(*uploads));
  95 }