blob: ca463de5f1e438ee43b6d03feacc731e6b5489ad [file] [log] [blame]
// Copyright 2013 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 "apps/launcher.h"
#include <utility>
#include <set>
#include "base/command_line.h"
#include "base/file_util.h"
#include "base/files/file_path.h"
#include "base/logging.h"
#include "base/memory/ref_counted.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/browser/extensions/api/file_handlers/app_file_handler_util.h"
#include "chrome/browser/extensions/api/file_handlers/mime_util.h"
#include "chrome/browser/extensions/api/file_system/file_system_api.h"
#include "chrome/browser/profiles/profile.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/url_constants.h"
#include "extensions/browser/api/app_runtime/app_runtime_api.h"
#include "extensions/browser/event_router.h"
#include "extensions/browser/extension_host.h"
#include "extensions/browser/extension_prefs.h"
#include "extensions/browser/extension_system.h"
#include "extensions/browser/granted_file_entry.h"
#include "extensions/browser/lazy_background_task_queue.h"
#include "extensions/browser/process_manager.h"
#include "extensions/common/api/app_runtime.h"
#include "extensions/common/extension.h"
#include "extensions/common/extension_messages.h"
#include "extensions/common/manifest_handlers/kiosk_mode_info.h"
#include "net/base/filename_util.h"
#include "net/base/net_util.h"
#include "url/gurl.h"
#if defined(OS_CHROMEOS)
#include "chrome/browser/chromeos/login/users/user_manager.h"
#endif
namespace app_runtime = extensions::core_api::app_runtime;
using content::BrowserThread;
using extensions::AppRuntimeEventRouter;
using extensions::app_file_handler_util::CreateFileEntry;
using extensions::app_file_handler_util::FileHandlerCanHandleFile;
using extensions::app_file_handler_util::FileHandlerForId;
using extensions::app_file_handler_util::FirstFileHandlerForFile;
using extensions::app_file_handler_util::HasFileSystemWritePermission;
using extensions::app_file_handler_util::PrepareFilesForWritableApp;
using extensions::EventRouter;
using extensions::Extension;
using extensions::ExtensionHost;
using extensions::ExtensionSystem;
using extensions::GrantedFileEntry;
namespace apps {
namespace {
const char kFallbackMimeType[] = "application/octet-stream";
bool DoMakePathAbsolute(const base::FilePath& current_directory,
base::FilePath* file_path) {
DCHECK(file_path);
if (file_path->IsAbsolute())
return true;
if (current_directory.empty()) {
*file_path = base::MakeAbsoluteFilePath(*file_path);
return !file_path->empty();
}
if (!current_directory.IsAbsolute())
return false;
*file_path = current_directory.Append(*file_path);
return true;
}
// Helper method to launch the platform app |extension| with no data. This
// should be called in the fallback case, where it has been impossible to
// load or obtain file launch data.
void LaunchPlatformAppWithNoData(Profile* profile, const Extension* extension) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
AppRuntimeEventRouter::DispatchOnLaunchedEvent(profile, extension);
}
// Class to handle launching of platform apps to open specific paths.
// An instance of this class is created for each launch. The lifetime of these
// instances is managed by reference counted pointers. As long as an instance
// has outstanding tasks on a message queue it will be retained; once all
// outstanding tasks are completed it will be deleted.
class PlatformAppPathLauncher
: public base::RefCountedThreadSafe<PlatformAppPathLauncher> {
public:
PlatformAppPathLauncher(Profile* profile,
const Extension* extension,
const std::vector<base::FilePath>& file_paths)
: profile_(profile),
extension_(extension),
file_paths_(file_paths),
collector_(profile) {}
PlatformAppPathLauncher(Profile* profile,
const Extension* extension,
const base::FilePath& file_path)
: profile_(profile), extension_(extension), collector_(profile) {
if (!file_path.empty())
file_paths_.push_back(file_path);
}
void Launch() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
if (file_paths_.empty()) {
LaunchPlatformAppWithNoData(profile_, extension_);
return;
}
for (size_t i = 0; i < file_paths_.size(); ++i) {
DCHECK(file_paths_[i].IsAbsolute());
}
if (HasFileSystemWritePermission(extension_)) {
PrepareFilesForWritableApp(
file_paths_,
profile_,
false,
base::Bind(&PlatformAppPathLauncher::OnFilesValid, this),
base::Bind(&PlatformAppPathLauncher::OnFilesInvalid, this));
return;
}
OnFilesValid();
}
void LaunchWithHandler(const std::string& handler_id) {
handler_id_ = handler_id;
Launch();
}
void LaunchWithRelativePath(const base::FilePath& current_directory) {
BrowserThread::PostTask(
BrowserThread::FILE,
FROM_HERE,
base::Bind(&PlatformAppPathLauncher::MakePathAbsolute,
this,
current_directory));
}
private:
friend class base::RefCountedThreadSafe<PlatformAppPathLauncher>;
virtual ~PlatformAppPathLauncher() {}
void MakePathAbsolute(const base::FilePath& current_directory) {
DCHECK_CURRENTLY_ON(BrowserThread::FILE);
for (std::vector<base::FilePath>::iterator it = file_paths_.begin();
it != file_paths_.end();
++it) {
if (!DoMakePathAbsolute(current_directory, &*it)) {
LOG(WARNING) << "Cannot make absolute path from " << it->value();
BrowserThread::PostTask(
BrowserThread::UI,
FROM_HERE,
base::Bind(&PlatformAppPathLauncher::LaunchWithNoLaunchData, this));
return;
}
}
BrowserThread::PostTask(BrowserThread::UI,
FROM_HERE,
base::Bind(&PlatformAppPathLauncher::Launch, this));
}
void OnFilesValid() {
collector_.CollectForLocalPaths(
file_paths_,
base::Bind(&PlatformAppPathLauncher::OnMimeTypesCollected, this));
}
void OnFilesInvalid(const base::FilePath& /* error_path */) {
LaunchWithNoLaunchData();
}
void LaunchWithNoLaunchData() {
// This method is required as an entry point on the UI thread.
LaunchPlatformAppWithNoData(profile_, extension_);
}
void OnMimeTypesCollected(scoped_ptr<std::vector<std::string> > mime_types) {
DCHECK(file_paths_.size() == mime_types->size());
// If fetching a mime type failed, then use a fallback one.
for (size_t i = 0; i < mime_types->size(); ++i) {
const std::string mime_type =
!(*mime_types)[i].empty() ? (*mime_types)[i] : kFallbackMimeType;
mime_types_.push_back(mime_type);
}
// Find file handler from the platform app for the file being opened.
const extensions::FileHandlerInfo* handler = NULL;
if (!handler_id_.empty()) {
handler = FileHandlerForId(*extension_, handler_id_);
if (handler) {
for (size_t i = 0; i < file_paths_.size(); ++i) {
if (!FileHandlerCanHandleFile(
*handler, mime_types_[i], file_paths_[i])) {
LOG(WARNING)
<< "Extension does not provide a valid file handler for "
<< file_paths_[i].value();
handler = NULL;
break;
}
}
}
} else {
std::set<std::pair<base::FilePath, std::string> > path_and_file_type_set;
for (size_t i = 0; i < file_paths_.size(); ++i) {
path_and_file_type_set.insert(
std::make_pair(file_paths_[i], mime_types_[i]));
}
const std::vector<const extensions::FileHandlerInfo*>& handlers =
extensions::app_file_handler_util::FindFileHandlersForFiles(
*extension_, path_and_file_type_set);
if (!handlers.empty())
handler = handlers[0];
}
// If this app doesn't have a file handler that supports the file, launch
// with no launch data.
if (!handler) {
LOG(WARNING) << "Extension does not provide a valid file handler.";
LaunchWithNoLaunchData();
return;
}
if (handler_id_.empty())
handler_id_ = handler->id;
// Access needs to be granted to the file for the process associated with
// the extension. To do this the ExtensionHost is needed. This might not be
// available, or it might be in the process of being unloaded, in which case
// the lazy background task queue is used to load the extension and then
// call back to us.
extensions::LazyBackgroundTaskQueue* const queue =
ExtensionSystem::Get(profile_)->lazy_background_task_queue();
if (queue->ShouldEnqueueTask(profile_, extension_)) {
queue->AddPendingTask(
profile_,
extension_->id(),
base::Bind(&PlatformAppPathLauncher::GrantAccessToFilesAndLaunch,
this));
return;
}
extensions::ProcessManager* const process_manager =
ExtensionSystem::Get(profile_)->process_manager();
ExtensionHost* const host =
process_manager->GetBackgroundHostForExtension(extension_->id());
DCHECK(host);
GrantAccessToFilesAndLaunch(host);
}
void GrantAccessToFilesAndLaunch(ExtensionHost* host) {
// If there was an error loading the app page, |host| will be NULL.
if (!host) {
LOG(ERROR) << "Could not load app page for " << extension_->id();
return;
}
std::vector<GrantedFileEntry> file_entries;
for (size_t i = 0; i < file_paths_.size(); ++i) {
file_entries.push_back(
CreateFileEntry(profile_,
extension_,
host->render_process_host()->GetID(),
file_paths_[i],
false));
}
AppRuntimeEventRouter::DispatchOnLaunchedEventWithFileEntries(
profile_, extension_, handler_id_, mime_types_, file_entries);
}
// The profile the app should be run in.
Profile* profile_;
// The extension providing the app.
// TODO(benwells): Hold onto the extension ID instead of a pointer as it
// is possible the extension will be unloaded while we're doing our thing.
// See http://crbug.com/372270 for details.
const Extension* extension_;
// The path to be passed through to the app.
std::vector<base::FilePath> file_paths_;
std::vector<std::string> mime_types_;
// The ID of the file handler used to launch the app.
std::string handler_id_;
extensions::app_file_handler_util::MimeTypeCollector collector_;
DISALLOW_COPY_AND_ASSIGN(PlatformAppPathLauncher);
};
} // namespace
void LaunchPlatformAppWithCommandLine(Profile* profile,
const Extension* extension,
const CommandLine& command_line,
const base::FilePath& current_directory) {
// An app with "kiosk_only" should not be installed and launched
// outside of ChromeOS kiosk mode in the first place. This is a defensive
// check in case this scenario does occur.
if (extensions::KioskModeInfo::IsKioskOnly(extension)) {
bool in_kiosk_mode = false;
#if defined(OS_CHROMEOS)
chromeos::UserManager* user_manager = chromeos::UserManager::Get();
in_kiosk_mode = user_manager && user_manager->IsLoggedInAsKioskApp();
#endif
if (!in_kiosk_mode) {
LOG(ERROR) << "App with 'kiosk_only' attribute must be run in "
<< " ChromeOS kiosk mode.";
NOTREACHED();
return;
}
}
#if defined(OS_WIN)
base::CommandLine::StringType about_blank_url(
base::ASCIIToWide(url::kAboutBlankURL));
#else
base::CommandLine::StringType about_blank_url(url::kAboutBlankURL);
#endif
CommandLine::StringVector args = command_line.GetArgs();
// Browser tests will add about:blank to the command line. This should
// never be interpreted as a file to open, as doing so with an app that
// has write access will result in a file 'about' being created, which
// causes problems on the bots.
if (args.empty() || (command_line.HasSwitch(switches::kTestType) &&
args[0] == about_blank_url)) {
LaunchPlatformAppWithNoData(profile, extension);
return;
}
base::FilePath file_path(command_line.GetArgs()[0]);
scoped_refptr<PlatformAppPathLauncher> launcher =
new PlatformAppPathLauncher(profile, extension, file_path);
launcher->LaunchWithRelativePath(current_directory);
}
void LaunchPlatformAppWithPath(Profile* profile,
const Extension* extension,
const base::FilePath& file_path) {
scoped_refptr<PlatformAppPathLauncher> launcher =
new PlatformAppPathLauncher(profile, extension, file_path);
launcher->Launch();
}
void LaunchPlatformApp(Profile* profile, const Extension* extension) {
LaunchPlatformAppWithCommandLine(profile,
extension,
CommandLine(CommandLine::NO_PROGRAM),
base::FilePath());
}
void LaunchPlatformAppWithFileHandler(
Profile* profile,
const Extension* extension,
const std::string& handler_id,
const std::vector<base::FilePath>& file_paths) {
scoped_refptr<PlatformAppPathLauncher> launcher =
new PlatformAppPathLauncher(profile, extension, file_paths);
launcher->LaunchWithHandler(handler_id);
}
void RestartPlatformApp(Profile* profile, const Extension* extension) {
EventRouter* event_router = EventRouter::Get(profile);
bool listening_to_restart = event_router->
ExtensionHasEventListener(extension->id(),
app_runtime::OnRestarted::kEventName);
if (listening_to_restart) {
AppRuntimeEventRouter::DispatchOnRestartedEvent(profile, extension);
return;
}
extensions::ExtensionPrefs* extension_prefs =
extensions::ExtensionPrefs::Get(profile);
bool had_windows = extension_prefs->IsActive(extension->id());
extension_prefs->SetIsActive(extension->id(), false);
bool listening_to_launch = event_router->
ExtensionHasEventListener(extension->id(),
app_runtime::OnLaunched::kEventName);
if (listening_to_launch && had_windows)
LaunchPlatformAppWithNoData(profile, extension);
}
void LaunchPlatformAppWithUrl(Profile* profile,
const Extension* extension,
const std::string& handler_id,
const GURL& url,
const GURL& referrer_url) {
AppRuntimeEventRouter::DispatchOnLaunchedEventWithUrl(
profile, extension, handler_id, url, referrer_url);
}
} // namespace apps