src/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/extension_system.h"
  14 #include "chrome/browser/extensions/unpacked_installer.h"
  15 #include "chrome/browser/profiles/profile.h"
  16 #include "chrome/common/extensions/feature_switch.h"
  17 #include "content/public/browser/web_contents.h"
  18 #include "content/public/browser/web_contents_view.h"
  19 #include "content/public/browser/web_ui.h"
  20 #include "content/public/browser/web_ui_data_source.h"
  21 #include "content/public/common/drop_data.h"
  22 #include "grit/generated_resources.h"
  23 #include "net/base/net_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(const ListValue* args) {
  64   content::DropData* drop_data =
  65       web_ui()->GetWebContents()->GetView()->GetDropData();
  66   if (!drop_data) {
  67     DLOG(ERROR) << "No current drop data.";
  68     return;
  69   }
  70
  71   if (drop_data->filenames.empty()) {
  72     DLOG(ERROR) << "Current drop data contains no files.";
  73     return;
  74   }
  75
  76   const content::DropData::FileInfo& file_info = drop_data->filenames.front();
  77
  78   file_to_install_ = base::FilePath::FromUTF16Unsafe(file_info.path);
  79   // Use the display name if provided, for checking file names
  80   // (.path is likely a random hash value in that case).
  81   file_display_name_ =
  82       file_info.display_name.empty() ? file_info.path : file_info.display_name;
  83 }
  84
  85 void InstallExtensionHandler::HandleStopDragMessage(const ListValue* args) {
  86   file_to_install_.clear();
  87   file_display_name_.clear();
  88 }
  89
  90 void InstallExtensionHandler::HandleInstallMessage(const ListValue* args) {
  91   if (file_to_install_.empty()) {
  92     LOG(ERROR) << "No file captured to install.";
  93     return;
  94   }
  95
  96   Profile* profile = Profile::FromBrowserContext(
  97       web_ui()->GetWebContents()->GetBrowserContext());
  98   scoped_ptr<ExtensionInstallPrompt> prompt(
  99       new ExtensionInstallPrompt(web_ui()->GetWebContents()));
 100   scoped_refptr<CrxInstaller> crx_installer(CrxInstaller::Create(
 101       ExtensionSystem::Get(profile)->extension_service(),
 102       prompt.Pass()));
 103   crx_installer->set_error_on_unsupported_requirements(true);
 104   crx_installer->set_off_store_install_allow_reason(
 105       CrxInstaller::OffStoreInstallAllowedFromSettingsPage);
 106   crx_installer->set_install_wait_for_idle(false);
 107
 108   const bool kCaseSensitive = false;
 109
 110   if (EndsWith(file_display_name_, ASCIIToUTF16(".user.js"), kCaseSensitive)) {
 111     crx_installer->InstallUserScript(
 112         file_to_install_,
 113         net::FilePathToFileURL(file_to_install_));
 114   } else if (EndsWith(file_display_name_,
 115                       ASCIIToUTF16(".crx"),
 116                       kCaseSensitive)) {
 117     crx_installer->InstallCrx(file_to_install_);
 118   } else {
 119     CHECK(false);
 120   }
 121
 122   file_to_install_.clear();
 123   file_display_name_.clear();
 124 }
 125
 126 void InstallExtensionHandler::HandleInstallDirectoryMessage(
 127     const ListValue* args) {
 128   Profile* profile = Profile::FromBrowserContext(
 129       web_ui()->GetWebContents()->GetBrowserContext());
 130   UnpackedInstaller::Create(
 131       ExtensionSystem::Get(profile)->
 132           extension_service())->Load(file_to_install_);
 133 }
 134
 135 }  // namespace extensions