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      1 // Copyright (c) 2011 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/gtk/external_protocol_dialog_gtk.h"
      6 
      7 #include <gtk/gtk.h>
      8 
      9 #include <string>
     10 
     11 #include "base/message_loop.h"
     12 #include "base/metrics/histogram.h"
     13 #include "base/string_util.h"
     14 #include "base/utf_string_conversions.h"
     15 #include "chrome/browser/external_protocol_handler.h"
     16 #include "chrome/browser/tab_contents/tab_util.h"
     17 #include "chrome/browser/ui/gtk/gtk_util.h"
     18 #include "grit/chromium_strings.h"
     19 #include "grit/generated_resources.h"
     20 #include "ui/base/l10n/l10n_util.h"
     21 #include "ui/base/text/text_elider.h"
     22 
     23 namespace {
     24 
     25 const int kMessageWidth = 400;
     26 
     27 }  // namespace
     28 
     29 ///////////////////////////////////////////////////////////////////////////////
     30 // ExternalProtocolHandler
     31 
     32 // static
     33 void ExternalProtocolHandler::RunExternalProtocolDialog(
     34     const GURL& url, int render_process_host_id, int routing_id) {
     35   new ExternalProtocolDialogGtk(url);
     36 }
     37 
     38 ///////////////////////////////////////////////////////////////////////////////
     39 // ExternalProtocolDialogGtk
     40 
     41 ExternalProtocolDialogGtk::ExternalProtocolDialogGtk(const GURL& url)
     42     : url_(url),
     43       creation_time_(base::TimeTicks::Now()) {
     44   DCHECK_EQ(MessageLoop::TYPE_UI, MessageLoop::current()->type());
     45 
     46   dialog_ = gtk_dialog_new_with_buttons(
     47       l10n_util::GetStringUTF8(IDS_EXTERNAL_PROTOCOL_TITLE).c_str(),
     48       NULL,
     49       GTK_DIALOG_NO_SEPARATOR,
     50       NULL);
     51 
     52   // Add the response buttons.
     53   gtk_util::AddButtonToDialog(dialog_,
     54       l10n_util::GetStringUTF8(
     55           IDS_EXTERNAL_PROTOCOL_CANCEL_BUTTON_TEXT).c_str(),
     56       GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT);
     57   gtk_util::AddButtonToDialog(dialog_,
     58       l10n_util::GetStringUTF8(IDS_EXTERNAL_PROTOCOL_OK_BUTTON_TEXT).c_str(),
     59       GTK_STOCK_OK, GTK_RESPONSE_ACCEPT);
     60 
     61   // Construct the message text.
     62   const int kMaxUrlWithoutSchemeSize = 256;
     63   const int kMaxCommandSize = 256;
     64   string16 elided_url_without_scheme;
     65   string16 elided_command;
     66   ui::ElideString(ASCIIToUTF16(url.possibly_invalid_spec()),
     67       kMaxUrlWithoutSchemeSize, &elided_url_without_scheme);
     68   ui::ElideString(ASCIIToUTF16(std::string("xdg-open ") + url.spec()),
     69       kMaxCommandSize, &elided_command);
     70 
     71   std::string message_text = l10n_util::GetStringFUTF8(
     72       IDS_EXTERNAL_PROTOCOL_INFORMATION,
     73       ASCIIToUTF16(url.scheme() + ":"),
     74       elided_url_without_scheme) + "\n\n";
     75 
     76   message_text += l10n_util::GetStringFUTF8(
     77       IDS_EXTERNAL_PROTOCOL_APPLICATION_TO_LAUNCH, elided_command) + "\n\n";
     78 
     79   message_text += l10n_util::GetStringUTF8(IDS_EXTERNAL_PROTOCOL_WARNING);
     80 
     81   // Create the content-holding vbox.
     82   GtkWidget* vbox = gtk_vbox_new(FALSE, gtk_util::kControlSpacing);
     83   gtk_container_set_border_width(GTK_CONTAINER(vbox),
     84                                  gtk_util::kContentAreaBorder);
     85 
     86   // Add the message text.
     87   GtkWidget* label = gtk_label_new(message_text.c_str());
     88   gtk_util::SetLabelWidth(label, kMessageWidth);
     89   gtk_box_pack_start(GTK_BOX(vbox), label, TRUE, TRUE, 0);
     90 
     91   // Add the checkbox.
     92   checkbox_ = gtk_check_button_new_with_label(
     93       l10n_util::GetStringUTF8(IDS_EXTERNAL_PROTOCOL_CHECKBOX_TEXT).c_str());
     94   gtk_box_pack_start(GTK_BOX(vbox), checkbox_,
     95                      FALSE, FALSE, 0);
     96 
     97   // Add our vbox to the dialog.
     98   gtk_box_pack_start(GTK_BOX(GTK_DIALOG(dialog_)->vbox), vbox,
     99                      FALSE, FALSE, 0);
    100 
    101   g_signal_connect(dialog_, "response", G_CALLBACK(OnResponseThunk), this);
    102 
    103   gtk_window_set_resizable(GTK_WINDOW(dialog_), FALSE);
    104   gtk_widget_show_all(dialog_);
    105 }
    106 
    107 ExternalProtocolDialogGtk::~ExternalProtocolDialogGtk() {
    108 }
    109 
    110 void ExternalProtocolDialogGtk::OnResponse(GtkWidget* dialog, int response_id) {
    111   if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(checkbox_))) {
    112     if (response_id == GTK_RESPONSE_ACCEPT) {
    113       ExternalProtocolHandler::SetBlockState(
    114           url_.scheme(), ExternalProtocolHandler::DONT_BLOCK);
    115     } else if (response_id == GTK_RESPONSE_REJECT) {
    116       ExternalProtocolHandler::SetBlockState(
    117           url_.scheme(), ExternalProtocolHandler::BLOCK);
    118     }
    119     // If the response is GTK_RESPONSE_DELETE, triggered by the user closing
    120     // the dialog, do nothing.
    121   }
    122 
    123   if (response_id == GTK_RESPONSE_ACCEPT) {
    124     UMA_HISTOGRAM_LONG_TIMES("clickjacking.launch_url",
    125                              base::TimeTicks::Now() - creation_time_);
    126 
    127     ExternalProtocolHandler::LaunchUrlWithoutSecurityCheck(url_);
    128   }
    129 
    130   gtk_widget_destroy(dialog_);
    131   delete this;
    132 }
    133