external_protocol_handler.cc revision 2a99a7e74a7f215066514fe81d2bfa6639d9eddd
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/browser/external_protocol/external_protocol_handler.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <set> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/bind.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/logging.h" 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/message_loop.h" 122a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/prefs/pref_registry_simple.h" 132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#include "base/prefs/pref_service.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/string_util.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/threading/thread.h" 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "build/build_config.h" 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/browser/browser_process.h" 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/browser/platform_util.h" 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/browser/prefs/scoped_user_pref_update.h" 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/common/pref_names.h" 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/public/browser/browser_thread.h" 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "googleurl/src/gurl.h" 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "net/base/escape.h" 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)using content::BrowserThread; 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Whether we accept requests for launching external protocols. This is set to 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// false every time an external protocol is requested, and set back to true on 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// each user gesture. This variable should only be accessed from the UI thread. 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static bool g_accept_requests = true; 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace { 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Functions enabling unit testing. Using a NULL delegate will use the default 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// behavior; if a delegate is provided it will be used instead. 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ShellIntegration::DefaultProtocolClientWorker* CreateShellWorker( 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ShellIntegration::DefaultWebClientObserver* observer, 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const std::string& protocol, 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ExternalProtocolHandler::Delegate* delegate) { 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!delegate) 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return new ShellIntegration::DefaultProtocolClientWorker(observer, 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) protocol); 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return delegate->CreateShellWorker(observer, protocol); 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ExternalProtocolHandler::BlockState GetBlockStateWithDelegate( 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const std::string& scheme, 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ExternalProtocolHandler::Delegate* delegate) { 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!delegate) 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return ExternalProtocolHandler::GetBlockState(scheme); 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return delegate->GetBlockState(scheme); 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void RunExternalProtocolDialogWithDelegate( 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const GURL& url, 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int render_process_host_id, 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int routing_id, 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ExternalProtocolHandler::Delegate* delegate) { 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!delegate) { 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ExternalProtocolHandler::RunExternalProtocolDialog(url, 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) render_process_host_id, 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) routing_id); 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delegate->RunExternalProtocolDialog(url, render_process_host_id, 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) routing_id); 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void LaunchUrlWithoutSecurityCheckWithDelegate( 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const GURL& url, 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ExternalProtocolHandler::Delegate* delegate) { 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!delegate) 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ExternalProtocolHandler::LaunchUrlWithoutSecurityCheck(url); 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delegate->LaunchUrlWithoutSecurityCheck(url); 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// When we are about to launch a URL with the default OS level application, 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// we check if that external application will be us. If it is we just ignore 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// the request. 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class ExternalDefaultProtocolObserver 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : public ShellIntegration::DefaultWebClientObserver { 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ExternalDefaultProtocolObserver(const GURL& escaped_url, 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int render_process_host_id, 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int tab_contents_id, 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool prompt_user, 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ExternalProtocolHandler::Delegate* delegate) 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : delegate_(delegate), 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) escaped_url_(escaped_url), 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) render_process_host_id_(render_process_host_id), 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) tab_contents_id_(tab_contents_id), 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) prompt_user_(prompt_user) {} 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void SetDefaultWebClientUIState( 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ShellIntegration::DefaultWebClientUIState state) OVERRIDE { 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_EQ(MessageLoop::TYPE_UI, MessageLoop::current()->type()); 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // If we are still working out if we're the default, or we've found 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // out we definately are the default, we end here. 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (state == ShellIntegration::STATE_PROCESSING) { 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (delegate_) 1085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delegate_->FinishedProcessingCheck(); 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (state == ShellIntegration::STATE_IS_DEFAULT) { 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (delegate_) 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delegate_->BlockRequest(); 1135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // If we get here, either we are not the default or we cannot work out 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // what the default is, so we proceed. 1185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (prompt_user_) { 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Ask the user if they want to allow the protocol. This will call 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // LaunchUrlWithoutSecurityCheck if the user decides to accept the 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // protocol. 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) RunExternalProtocolDialogWithDelegate(escaped_url_, 1235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) render_process_host_id_, tab_contents_id_, delegate_); 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) LaunchUrlWithoutSecurityCheckWithDelegate(escaped_url_, delegate_); 1285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual bool IsOwnedByWorker() OVERRIDE { return true; } 1315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 1335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ExternalProtocolHandler::Delegate* delegate_; 1345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GURL escaped_url_; 1355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int render_process_host_id_; 1365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int tab_contents_id_; 1375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool prompt_user_; 1385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace 1415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 1435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ExternalProtocolHandler::PrepopulateDictionary(DictionaryValue* win_pref) { 1445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static bool is_warm = false; 1455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (is_warm) 1465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 1475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) is_warm = true; 1485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static const char* const denied_schemes[] = { 1505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "afp", 1515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "data", 1525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "disk", 1535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "disks", 1545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // ShellExecuting file:///C:/WINDOWS/system32/notepad.exe will simply 1555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // execute the file specified! Hopefully we won't see any "file" schemes 1565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // because we think of file:// URLs as handled URLs, but better to be safe 1575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // than to let an attacker format the user's hard drive. 1585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "file", 1595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "hcp", 1605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "javascript", 1615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "ms-help", 1625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "nntp", 1635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "shell", 1645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "vbscript", 1655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // view-source is a special case in chrome. When it comes through an 1665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // iframe or a redirect, it looks like an external protocol, but we don't 1675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // want to shellexecute it. 1685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "view-source", 1695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "vnd.ms.radio", 1705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 1715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) static const char* const allowed_schemes[] = { 1735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "mailto", 1745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "news", 1755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) "snews", 1762a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#if defined(OS_WIN) 1772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) "ms-windows-store", 1782a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)#endif 1795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 1805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool should_block; 1825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (size_t i = 0; i < arraysize(denied_schemes); ++i) { 1835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!win_pref->GetBoolean(denied_schemes[i], &should_block)) { 1845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) win_pref->SetBoolean(denied_schemes[i], true); 1855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) for (size_t i = 0; i < arraysize(allowed_schemes); ++i) { 1895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!win_pref->GetBoolean(allowed_schemes[i], &should_block)) { 1905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) win_pref->SetBoolean(allowed_schemes[i], false); 1915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 1935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 1965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)ExternalProtocolHandler::BlockState ExternalProtocolHandler::GetBlockState( 1975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) const std::string& scheme) { 1985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // If we are being carpet bombed, block the request. 1995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!g_accept_requests) 2005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return BLOCK; 2015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (scheme.length() == 1) { 2035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // We have a URL that looks something like: 2045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // C:/WINDOWS/system32/notepad.exe 2055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // ShellExecuting this URL will cause the specified program to be executed. 2065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return BLOCK; 2075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Check the stored prefs. 2105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // TODO(pkasting): http://b/1119651 This kind of thing should go in the 2115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // preferences on the profile, not in the local state. 2125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PrefService* pref = g_browser_process->local_state(); 2135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (pref) { // May be NULL during testing. 2145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DictionaryPrefUpdate update_excluded_schemas(pref, prefs::kExcludedSchemes); 2155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Warm up the dictionary if needed. 2175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PrepopulateDictionary(update_excluded_schemas.Get()); 2185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool should_block; 2205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (update_excluded_schemas->GetBoolean(scheme, &should_block)) 2215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return should_block ? BLOCK : DONT_BLOCK; 2225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return UNKNOWN; 2255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 2285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ExternalProtocolHandler::SetBlockState(const std::string& scheme, 2295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) BlockState state) { 2305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Set in the stored prefs. 2315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // TODO(pkasting): http://b/1119651 This kind of thing should go in the 2325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // preferences on the profile, not in the local state. 2335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PrefService* pref = g_browser_process->local_state(); 2345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (pref) { // May be NULL during testing. 2355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DictionaryPrefUpdate update_excluded_schemas(pref, prefs::kExcludedSchemes); 2365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (state == UNKNOWN) { 2385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) update_excluded_schemas->Remove(scheme, NULL); 2395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } else { 2405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) update_excluded_schemas->SetBoolean(scheme, (state == BLOCK)); 2415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 2465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ExternalProtocolHandler::LaunchUrlWithDelegate(const GURL& url, 2475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int render_process_host_id, 2485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) int tab_contents_id, 2495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) Delegate* delegate) { 2505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_EQ(MessageLoop::TYPE_UI, MessageLoop::current()->type()); 2515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Escape the input scheme to be sure that the command does not 2535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // have parameters unexpected by the external program. 2545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) std::string escaped_url_string = net::EscapeExternalHandlerValue(url.spec()); 2555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GURL escaped_url(escaped_url_string); 2565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) BlockState block_state = GetBlockStateWithDelegate(escaped_url.scheme(), 2575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delegate); 2585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (block_state == BLOCK) { 2595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (delegate) 2605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delegate->BlockRequest(); 2615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return; 2625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 2635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_accept_requests = false; 2655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The worker creates tasks with references to itself and puts them into 2675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // message loops. When no tasks are left it will delete the observer and 2685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // eventually be deleted itself. 2695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ShellIntegration::DefaultWebClientObserver* observer = 2705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) new ExternalDefaultProtocolObserver(url, 2715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) render_process_host_id, 2725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) tab_contents_id, 2735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) block_state == UNKNOWN, 2745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) delegate); 2755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) scoped_refptr<ShellIntegration::DefaultProtocolClientWorker> worker = 2765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) CreateShellWorker(observer, escaped_url.scheme(), delegate); 2775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Start the check process running. This will send tasks to the FILE thread 2795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // and when the answer is known will send the result back to the observer on 2805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // the UI thread. 2815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) worker->StartCheckIsDefault(); 2825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 2855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ExternalProtocolHandler::LaunchUrlWithoutSecurityCheck(const GURL& url) { 2865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_MACOSX) 2875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // This must run on the UI thread on OS X. 2885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) platform_util::OpenExternal(url); 2895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 2905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Otherwise put this work on the file thread. On Windows ShellExecute may 2915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // block for a significant amount of time, and it shouldn't hurt on Linux. 2925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) BrowserThread::PostTask( 2935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) BrowserThread::FILE, 2945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) FROM_HERE, 2955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::Bind(&platform_util::OpenExternal, url)); 2965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 2975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 2985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 2995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 3002a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)void ExternalProtocolHandler::RegisterPrefs(PrefRegistrySimple* registry) { 3012a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) registry->RegisterDictionaryPref(prefs::kExcludedSchemes); 3025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 3035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 3045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// static 3055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void ExternalProtocolHandler::PermitLaunchUrl() { 3065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DCHECK_EQ(MessageLoop::TYPE_UI, MessageLoop::current()->type()); 3075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_accept_requests = true; 3085821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 309