chrome/browser/download/save_package_file_picker.cc

   1 // Copyright (c) 2012 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/download/save_package_file_picker.h"
   6
   7 #include "base/bind.h"
   8 #include "base/command_line.h"
   9 #include "base/i18n/file_util_icu.h"
  10 #include "base/metrics/histogram.h"
  11 #include "base/prefs/pref_member.h"
  12 #include "base/prefs/pref_service.h"
  13 #include "base/strings/utf_string_conversions.h"
  14 #include "chrome/browser/download/chrome_download_manager_delegate.h"
  15 #include "chrome/browser/download/download_prefs.h"
  16 #include "chrome/browser/platform_util.h"
  17 #include "chrome/browser/profiles/profile.h"
  18 #include "chrome/browser/ui/chrome_select_file_policy.h"
  19 #include "chrome/common/chrome_switches.h"
  20 #include "chrome/grit/generated_resources.h"
  21 #include "content/public/browser/download_manager.h"
  22 #include "content/public/browser/render_process_host.h"
  23 #include "content/public/browser/save_page_type.h"
  24 #include "content/public/browser/web_contents.h"
  25 #include "ui/base/l10n/l10n_util.h"
  26
  27 #if defined(OS_CHROMEOS)
  28 #include "chrome/browser/chromeos/drive/download_handler.h"
  29 #include "chrome/browser/chromeos/drive/file_system_core_util.h"
  30 #endif
  31
  32 using content::RenderProcessHost;
  33 using content::SavePageType;
  34 using content::WebContents;
  35
  36 namespace {
  37
  38 // If false, we don't prompt the user as to where to save the file.  This
  39 // exists only for testing.
  40 bool g_should_prompt_for_filename = true;
  41
  42 void OnSavePackageDownloadCreated(content::DownloadItem* download) {
  43   ChromeDownloadManagerDelegate::DisableSafeBrowsing(download);
  44 }
  45
  46 #if defined(OS_CHROMEOS)
  47 void OnSavePackageDownloadCreatedChromeOS(
  48     Profile* profile,
  49     const base::FilePath& drive_path,
  50     content::DownloadItem* download) {
  51   drive::DownloadHandler::GetForProfile(profile)->SetDownloadParams(
  52       drive_path, download);
  53   OnSavePackageDownloadCreated(download);
  54 }
  55
  56 // Trampoline callback between SubstituteDriveDownloadPath() and |callback|.
  57 void ContinueSettingUpDriveDownload(
  58     const content::SavePackagePathPickedCallback& callback,
  59     content::SavePageType save_type,
  60     Profile* profile,
  61     const base::FilePath& drive_path,
  62     const base::FilePath& drive_tmp_download_path) {
  63   if (drive_tmp_download_path.empty())  // Substitution failed.
  64     return;
  65   callback.Run(drive_tmp_download_path, save_type, base::Bind(
  66       &OnSavePackageDownloadCreatedChromeOS, profile, drive_path));
  67 }
  68 #endif
  69
  70 // Adds "Webpage, HTML Only" type to FileTypeInfo.
  71 void AddHtmlOnlyFileTypeInfo(
  72     ui::SelectFileDialog::FileTypeInfo* file_type_info,
  73     const base::FilePath::StringType& extra_extension) {
  74   file_type_info->extension_description_overrides.push_back(
  75       l10n_util::GetStringUTF16(IDS_SAVE_PAGE_DESC_HTML_ONLY));
  76
  77   std::vector<base::FilePath::StringType> extensions;
  78   extensions.push_back(FILE_PATH_LITERAL("html"));
  79   extensions.push_back(FILE_PATH_LITERAL("htm"));
  80   if (!extra_extension.empty())
  81     extensions.push_back(extra_extension);
  82   file_type_info->extensions.push_back(extensions);
  83 }
  84
  85 // Adds "Web Archive, Single File" type to FileTypeInfo.
  86 void AddSingleFileFileTypeInfo(
  87     ui::SelectFileDialog::FileTypeInfo* file_type_info) {
  88   file_type_info->extension_description_overrides.push_back(
  89       l10n_util::GetStringUTF16(IDS_SAVE_PAGE_DESC_SINGLE_FILE));
  90
  91   std::vector<base::FilePath::StringType> extensions;
  92   extensions.push_back(FILE_PATH_LITERAL("mhtml"));
  93   file_type_info->extensions.push_back(extensions);
  94 }
  95
  96 // Chrome OS doesn't support HTML-Complete. crbug.com/154823
  97 #if !defined(OS_CHROMEOS)
  98 // Adds "Webpage, Complete" type to FileTypeInfo.
  99 void AddCompleteFileTypeInfo(
 100     ui::SelectFileDialog::FileTypeInfo* file_type_info,
 101     const base::FilePath::StringType& extra_extension) {
 102   file_type_info->extension_description_overrides.push_back(
 103       l10n_util::GetStringUTF16(IDS_SAVE_PAGE_DESC_COMPLETE));
 104
 105   std::vector<base::FilePath::StringType> extensions;
 106   extensions.push_back(FILE_PATH_LITERAL("htm"));
 107   extensions.push_back(FILE_PATH_LITERAL("html"));
 108   if (!extra_extension.empty())
 109     extensions.push_back(extra_extension);
 110   file_type_info->extensions.push_back(extensions);
 111 }
 112 #endif
 113
 114 }  // anonymous namespace
 115
 116 bool SavePackageFilePicker::ShouldSaveAsMHTML() const {
 117 #if !defined(OS_CHROMEOS)
 118   if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
 119           switches::kSavePageAsMHTML))
 120     return false;
 121 #endif
 122   return can_save_as_complete_;
 123 }
 124
 125 SavePackageFilePicker::SavePackageFilePicker(
 126     content::WebContents* web_contents,
 127     const base::FilePath& suggested_path,
 128     const base::FilePath::StringType& default_extension,
 129     bool can_save_as_complete,
 130     DownloadPrefs* download_prefs,
 131     const content::SavePackagePathPickedCallback& callback)
 132     : render_process_id_(web_contents->GetRenderProcessHost()->GetID()),
 133       can_save_as_complete_(can_save_as_complete),
 134       download_prefs_(download_prefs),
 135       callback_(callback) {
 136   base::FilePath suggested_path_copy = suggested_path;
 137   base::FilePath::StringType default_extension_copy = default_extension;
 138   int file_type_index = 0;
 139   ui::SelectFileDialog::FileTypeInfo file_type_info;
 140
 141   file_type_info.support_drive = true;
 142
 143   if (can_save_as_complete_) {
 144     // The option index is not zero-based. Put a dummy entry.
 145     save_types_.push_back(content::SAVE_PAGE_TYPE_UNKNOWN);
 146
 147     base::FilePath::StringType extra_extension;
 148     if (ShouldSaveAsMHTML()) {
 149       default_extension_copy = FILE_PATH_LITERAL("mhtml");
 150       suggested_path_copy = suggested_path_copy.ReplaceExtension(
 151           default_extension_copy);
 152     } else {
 153       if (!suggested_path_copy.FinalExtension().empty() &&
 154           !suggested_path_copy.MatchesExtension(FILE_PATH_LITERAL(".htm")) &&
 155           !suggested_path_copy.MatchesExtension(FILE_PATH_LITERAL(".html"))) {
 156         extra_extension = suggested_path_copy.FinalExtension().substr(1);
 157       }
 158     }
 159
 160     AddHtmlOnlyFileTypeInfo(&file_type_info, extra_extension);
 161     save_types_.push_back(content::SAVE_PAGE_TYPE_AS_ONLY_HTML);
 162
 163     if (ShouldSaveAsMHTML()) {
 164       AddSingleFileFileTypeInfo(&file_type_info);
 165       save_types_.push_back(content::SAVE_PAGE_TYPE_AS_MHTML);
 166     }
 167
 168 #if !defined(OS_CHROMEOS)
 169     AddCompleteFileTypeInfo(&file_type_info, extra_extension);
 170     save_types_.push_back(content::SAVE_PAGE_TYPE_AS_COMPLETE_HTML);
 171 #endif
 172
 173     file_type_info.include_all_files = false;
 174
 175     content::SavePageType preferred_save_type =
 176         static_cast<content::SavePageType>(download_prefs_->save_file_type());
 177     if (ShouldSaveAsMHTML())
 178       preferred_save_type = content::SAVE_PAGE_TYPE_AS_MHTML;
 179
 180     // Select the item saved in the pref.
 181     for (size_t i = 0; i < save_types_.size(); ++i) {
 182       if (save_types_[i] == preferred_save_type) {
 183         file_type_index = i;
 184         break;
 185       }
 186     }
 187
 188     // If the item saved in the pref was not found, use the last item.
 189     if (!file_type_index)
 190       file_type_index = save_types_.size() - 1;
 191   } else {
 192     // The contents can not be saved as complete-HTML, so do not show the file
 193     // filters.
 194     file_type_info.extensions.resize(1);
 195     file_type_info.extensions[0].push_back(
 196         suggested_path_copy.FinalExtension());
 197
 198     if (!file_type_info.extensions[0][0].empty()) {
 199       // Drop the .
 200       file_type_info.extensions[0][0].erase(0, 1);
 201     }
 202
 203     file_type_info.include_all_files = true;
 204     file_type_index = 1;
 205   }
 206
 207   if (g_should_prompt_for_filename) {
 208     select_file_dialog_ = ui::SelectFileDialog::Create(
 209         this, new ChromeSelectFilePolicy(web_contents));
 210     select_file_dialog_->SelectFile(
 211         ui::SelectFileDialog::SELECT_SAVEAS_FILE,
 212         base::string16(),
 213         suggested_path_copy,
 214         &file_type_info,
 215         file_type_index,
 216         default_extension_copy,
 217         platform_util::GetTopLevel(web_contents->GetNativeView()),
 218         NULL);
 219   } else {
 220     // Just use 'suggested_path_copy' instead of opening the dialog prompt.
 221     // Go through FileSelected() for consistency.
 222     FileSelected(suggested_path_copy, file_type_index, NULL);
 223   }
 224 }
 225
 226 SavePackageFilePicker::~SavePackageFilePicker() {
 227 }
 228
 229 void SavePackageFilePicker::SetShouldPromptUser(bool should_prompt) {
 230   g_should_prompt_for_filename = should_prompt;
 231 }
 232
 233 void SavePackageFilePicker::FileSelected(
 234     const base::FilePath& path, int index, void* unused_params) {
 235   scoped_ptr<SavePackageFilePicker> delete_this(this);
 236   RenderProcessHost* process = RenderProcessHost::FromID(render_process_id_);
 237   if (!process)
 238     return;
 239   SavePageType save_type = content::SAVE_PAGE_TYPE_UNKNOWN;
 240
 241   if (can_save_as_complete_) {
 242     DCHECK_LT(index, static_cast<int>(save_types_.size()));
 243     save_type = save_types_[index];
 244     if (select_file_dialog_.get() &&
 245         select_file_dialog_->HasMultipleFileTypeChoices())
 246       download_prefs_->SetSaveFileType(save_type);
 247
 248     UMA_HISTOGRAM_ENUMERATION("Download.SavePageType",
 249                               save_type,
 250                               content::SAVE_PAGE_TYPE_MAX);
 251   } else {
 252     // Use "HTML Only" type as a dummy.
 253     save_type = content::SAVE_PAGE_TYPE_AS_ONLY_HTML;
 254   }
 255
 256   base::FilePath path_copy(path);
 257   base::i18n::NormalizeFileNameEncoding(&path_copy);
 258
 259   download_prefs_->SetSaveFilePath(path_copy.DirName());
 260
 261 #if defined(OS_CHROMEOS)
 262   if (drive::util::IsUnderDriveMountPoint(path_copy)) {
 263     // Here's a map to the callback chain:
 264     // SubstituteDriveDownloadPath ->
 265     //   ContinueSettingUpDriveDownload ->
 266     //     callback_ = SavePackage::OnPathPicked ->
 267     //       download_created_callback = OnSavePackageDownloadCreatedChromeOS
 268     Profile* profile = Profile::FromBrowserContext(
 269         process->GetBrowserContext());
 270     drive::DownloadHandler* drive_download_handler =
 271         drive::DownloadHandler::GetForProfile(profile);
 272     drive_download_handler->SubstituteDriveDownloadPath(
 273         path_copy, NULL, base::Bind(&ContinueSettingUpDriveDownload,
 274                                     callback_,
 275                                     save_type,
 276                                     profile,
 277                                     path_copy));
 278     return;
 279   }
 280 #endif
 281
 282   callback_.Run(path_copy, save_type,
 283                 base::Bind(&OnSavePackageDownloadCreated));
 284 }
 285
 286 void SavePackageFilePicker::FileSelectionCanceled(void* unused_params) {
 287   delete this;
 288 }