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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/pdf_unsupported_feature.h"
#include "base/utf_string_conversions.h"
#include "base/values.h"
#include "base/version.h"
#include "chrome/browser/plugin_service.h"
#include "chrome/browser/renderer_host/render_process_host.h"
#include "chrome/browser/renderer_host/render_view_host.h"
#include "chrome/browser/tab_contents/infobar_delegate.h"
#include "chrome/browser/tab_contents/interstitial_page.h"
#include "chrome/browser/tab_contents/tab_contents.h"
#include "chrome/common/jstemplate_builder.h"
#include "grit/browser_resources.h"
#include "grit/generated_resources.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/resource/resource_bundle.h"
#include "webkit/plugins/npapi/plugin_group.h"
#include "webkit/plugins/npapi/plugin_list.h"
#include "webkit/plugins/npapi/webplugininfo.h"
using webkit::npapi::PluginGroup;
using webkit::npapi::PluginList;
using webkit::npapi::WebPluginInfo;
// Only launch Adobe Reader X or later.
static const uint16 kMinReaderVersionToUse = 10;
namespace {
// Launch the url to get the latest Adbobe Reader installer.
void OpenReaderUpdateURL(TabContents* tab) {
tab->OpenURL(GURL(PluginGroup::kAdobeReaderUpdateURL), GURL(), CURRENT_TAB,
PageTransition::LINK);
}
// Opens the PDF using Adobe Reader.
void OpenUsingReader(TabContents* tab, const WebPluginInfo& reader_plugin) {
PluginService::OverriddenPlugin plugin;
plugin.render_process_id = tab->GetRenderProcessHost()->id();
plugin.render_view_id = tab->render_view_host()->routing_id();
plugin.url = tab->GetURL();
plugin.plugin = reader_plugin;
PluginService::GetInstance()->OverridePluginForTab(plugin);
tab->render_view_host()->ReloadFrame();
}
// An interstitial to be used when the user chooses to open a PDF using Adobe
// Reader, but it is out of date.
class PDFUnsupportedFeatureInterstitial : public InterstitialPage {
public:
PDFUnsupportedFeatureInterstitial(
TabContents* tab,
const WebPluginInfo& reader_webplugininfo)
: InterstitialPage(tab, false, tab->GetURL()),
reader_webplugininfo_(reader_webplugininfo) {
}
protected:
// InterstitialPage implementation.
virtual std::string GetHTMLContents() {
DictionaryValue strings;
strings.SetString(
"title",
l10n_util::GetStringUTF16(IDS_READER_OUT_OF_DATE_BLOCKING_PAGE_TITLE));
strings.SetString(
"headLine",
l10n_util::GetStringUTF16(IDS_READER_OUT_OF_DATE_BLOCKING_PAGE_BODY));
strings.SetString(
"update",
l10n_util::GetStringUTF16(IDS_READER_OUT_OF_DATE_BLOCKING_PAGE_UPDATE));
strings.SetString(
"open_with_reader",
l10n_util::GetStringUTF16(
IDS_READER_OUT_OF_DATE_BLOCKING_PAGE_PROCEED));
strings.SetString(
"ok",
l10n_util::GetStringUTF16(IDS_READER_OUT_OF_DATE_BLOCKING_PAGE_OK));
strings.SetString(
"cancel",
l10n_util::GetStringUTF16(IDS_READER_OUT_OF_DATE_BLOCKING_PAGE_CANCEL));
base::StringPiece html(ResourceBundle::GetSharedInstance().
GetRawDataResource(IDR_READER_OUT_OF_DATE_HTML));
return jstemplate_builder::GetI18nTemplateHtml(html, &strings);
}
virtual void CommandReceived(const std::string& command) {
if (command == "0") {
DontProceed();
return;
}
if (command == "1") {
OpenReaderUpdateURL(tab());
} else if (command == "2") {
OpenUsingReader(tab(), reader_webplugininfo_);
} else {
NOTREACHED();
}
Proceed();
}
private:
WebPluginInfo reader_webplugininfo_;
DISALLOW_COPY_AND_ASSIGN(PDFUnsupportedFeatureInterstitial);
};
// The info bar delegate used to inform the user that we don't support a feature
// in the PDF.
class PDFUnsupportedFeatureConfirmInfoBarDelegate
: public ConfirmInfoBarDelegate {
public:
PDFUnsupportedFeatureConfirmInfoBarDelegate(
TabContents* tab_contents,
PluginGroup* reader_group) // NULL if Adobe Reader isn't installed.
: ConfirmInfoBarDelegate(tab_contents),
tab_contents_(tab_contents),
reader_installed_(!!reader_group),
reader_vulnerable_(false) {
if (reader_installed_) {
std::vector<WebPluginInfo> plugins = reader_group->web_plugin_infos();
DCHECK_EQ(plugins.size(), 1u);
reader_webplugininfo_ = plugins[0];
reader_vulnerable_ = reader_group->IsVulnerable();
if (!reader_vulnerable_) {
scoped_ptr<Version> version(PluginGroup::CreateVersionFromString(
reader_webplugininfo_.version));
if (version.get()) {
if (version->components()[0] < kMinReaderVersionToUse)
reader_vulnerable_ = true;
}
}
}
}
// ConfirmInfoBarDelegate
virtual void InfoBarClosed() {
delete this;
}
virtual Type GetInfoBarType() {
return PAGE_ACTION_TYPE;
}
virtual bool Accept() {
LaunchReader();
return true;
}
virtual int GetButtons() const {
return BUTTON_OK | BUTTON_CANCEL;
}
virtual string16 GetButtonLabel(InfoBarButton button) const {
switch (button) {
case BUTTON_OK:
return l10n_util::GetStringUTF16(
IDS_CONFIRM_MESSAGEBOX_YES_BUTTON_LABEL);
case BUTTON_CANCEL:
return l10n_util::GetStringUTF16(
IDS_CONFIRM_MESSAGEBOX_NO_BUTTON_LABEL);
default:
// All buttons are labeled above.
NOTREACHED() << "Bad button id " << button;
return string16();
}
}
virtual string16 GetMessageText() const {
return l10n_util::GetStringUTF16(reader_installed_ ?
IDS_PDF_INFOBAR_QUESTION_READER_INSTALLED :
IDS_PDF_INFOBAR_QUESTION_READER_NOT_INSTALLED);
}
private:
void LaunchReader() {
if (!reader_installed_) {
OpenReaderUpdateURL(tab_contents_);
return;
}
if (reader_vulnerable_) {
PDFUnsupportedFeatureInterstitial* interstitial = new
PDFUnsupportedFeatureInterstitial(
tab_contents_, reader_webplugininfo_);
interstitial->Show();
return;
}
OpenUsingReader(tab_contents_, reader_webplugininfo_);
}
TabContents* tab_contents_;
bool reader_installed_;
bool reader_vulnerable_;
WebPluginInfo reader_webplugininfo_;
DISALLOW_IMPLICIT_CONSTRUCTORS(PDFUnsupportedFeatureConfirmInfoBarDelegate);
};
} // namespace
void PDFHasUnsupportedFeature(TabContents* tab) {
#if !defined(OS_WIN)
// Only works for Windows for now. For Mac, we'll have to launch the file
// externally since Adobe Reader doesn't work inside Chrome.
return;
#endif
PluginGroup* reader_group = NULL;
std::vector<PluginGroup> plugin_groups;
PluginList::Singleton()->GetPluginGroups(
false, &plugin_groups);
string16 reader_group_name(UTF8ToUTF16(PluginGroup::kAdobeReaderGroupName));
for (size_t i = 0; i < plugin_groups.size(); ++i) {
if (plugin_groups[i].GetGroupName() == reader_group_name) {
reader_group = &plugin_groups[i];
break;
}
}
// If the plugin is disabled by policy or by the user, don't prompt them.
if (reader_group && !reader_group->Enabled())
return;
tab->AddInfoBar(new PDFUnsupportedFeatureConfirmInfoBarDelegate(
tab, reader_group));
}
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