chrome/browser/ui/webui/extensions/install_extension_handler.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/ui/webui/extensions/install_extension_handler.h"
   6
   7 #include "base/bind.h"
   8 #include "base/strings/string_util.h"
   9 #include "base/strings/utf_string_conversions.h"
  10 #include "chrome/browser/extensions/crx_installer.h"
  11 #include "chrome/browser/extensions/extension_install_prompt.h"
  12 #include "chrome/browser/extensions/extension_service.h"
  13 #include "chrome/browser/extensions/unpacked_installer.h"
  14 #include "chrome/browser/extensions/zipfile_installer.h"
  15 #include "chrome/browser/profiles/profile.h"
  16 #include "chrome/grit/generated_resources.h"
  17 #include "content/public/browser/web_contents.h"
  18 #include "content/public/browser/web_ui.h"
  19 #include "content/public/browser/web_ui_data_source.h"
  20 #include "content/public/common/drop_data.h"
  21 #include "extensions/browser/extension_system.h"
  22 #include "extensions/common/feature_switch.h"
  23 #include "net/base/filename_util.h"
  24 #include "ui/base/l10n/l10n_util.h"
  25
  26 namespace extensions {
  27
  28 InstallExtensionHandler::InstallExtensionHandler() {
  29 }
  30
  31 InstallExtensionHandler::~InstallExtensionHandler() {
  32 }
  33
  34 void InstallExtensionHandler::GetLocalizedValues(
  35     content::WebUIDataSource* source) {
  36   source->AddString(
  37       "extensionSettingsInstallDropTarget",
  38       l10n_util::GetStringUTF16(IDS_EXTENSIONS_INSTALL_DROP_TARGET));
  39   source->AddBoolean(
  40       "offStoreInstallEnabled",
  41       FeatureSwitch::easy_off_store_install()->IsEnabled());
  42 }
  43
  44 void InstallExtensionHandler::RegisterMessages() {
  45   web_ui()->RegisterMessageCallback(
  46       "startDrag",
  47       base::Bind(&InstallExtensionHandler::HandleStartDragMessage,
  48                  base::Unretained(this)));
  49   web_ui()->RegisterMessageCallback(
  50       "stopDrag",
  51       base::Bind(&InstallExtensionHandler::HandleStopDragMessage,
  52                  base::Unretained(this)));
  53   web_ui()->RegisterMessageCallback(
  54       "installDroppedFile",
  55       base::Bind(&InstallExtensionHandler::HandleInstallMessage,
  56                  base::Unretained(this)));
  57   web_ui()->RegisterMessageCallback(
  58       "installDroppedDirectory",
  59       base::Bind(&InstallExtensionHandler::HandleInstallDirectoryMessage,
  60                  base::Unretained(this)));
  61 }
  62
  63 void InstallExtensionHandler::HandleStartDragMessage(
  64     const base::ListValue* args) {
  65   content::DropData* drop_data =
  66       web_ui()->GetWebContents()->GetDropData();
  67   if (!drop_data) {
  68     DLOG(ERROR) << "No current drop data.";
  69     return;
  70   }
  71
  72   if (drop_data->filenames.empty()) {
  73     DLOG(ERROR) << "Current drop data contains no files.";
  74     return;
  75   }
  76
  77   const ui::FileInfo& file_info = drop_data->filenames.front();
  78
  79   file_to_install_ = file_info.path;
  80   // Use the display name if provided, for checking file names
  81   // (.path is likely a random hash value in that case).
  82   file_display_name_ =
  83       file_info.display_name.empty() ? file_info.path : file_info.display_name;
  84 }
  85
  86 void InstallExtensionHandler::HandleStopDragMessage(
  87     const base::ListValue* args) {
  88   file_to_install_.clear();
  89   file_display_name_.clear();
  90 }
  91
  92 void InstallExtensionHandler::HandleInstallMessage(
  93     const base::ListValue* args) {
  94   if (file_to_install_.empty()) {
  95     LOG(ERROR) << "No file captured to install.";
  96     return;
  97   }
  98
  99   Profile* profile = Profile::FromBrowserContext(
 100       web_ui()->GetWebContents()->GetBrowserContext());
 101
 102   if (file_display_name_.MatchesExtension(FILE_PATH_LITERAL(".zip"))) {
 103     ZipFileInstaller::Create(ExtensionSystem::Get(profile)->extension_service())
 104         ->LoadFromZipFile(file_to_install_);
 105   } else {
 106     scoped_ptr<ExtensionInstallPrompt> prompt(
 107         new ExtensionInstallPrompt(web_ui()->GetWebContents()));
 108     scoped_refptr<CrxInstaller> crx_installer(CrxInstaller::Create(
 109         ExtensionSystem::Get(profile)->extension_service(), prompt.Pass()));
 110     crx_installer->set_error_on_unsupported_requirements(true);
 111     crx_installer->set_off_store_install_allow_reason(
 112         CrxInstaller::OffStoreInstallAllowedFromSettingsPage);
 113     crx_installer->set_install_immediately(true);
 114
 115     if (file_display_name_.MatchesExtension(FILE_PATH_LITERAL(".user.js"))) {
 116       crx_installer->InstallUserScript(
 117           file_to_install_, net::FilePathToFileURL(file_to_install_));
 118     } else if (file_display_name_.MatchesExtension(FILE_PATH_LITERAL(".crx"))) {
 119       crx_installer->InstallCrx(file_to_install_);
 120     } else {
 121       CHECK(false);
 122     }
 123   }
 124
 125   file_to_install_.clear();
 126   file_display_name_.clear();
 127 }
 128
 129 void InstallExtensionHandler::HandleInstallDirectoryMessage(
 130     const base::ListValue* args) {
 131   Profile* profile = Profile::FromBrowserContext(
 132       web_ui()->GetWebContents()->GetBrowserContext());
 133   UnpackedInstaller::Create(
 134       ExtensionSystem::Get(profile)->
 135           extension_service())->Load(file_to_install_);
 136 }
 137
 138 }  // namespace extensions