blob: ad5ddd2532653a0099dd04055238d6d2aa706091 [file] [log] [blame]
// Copyright (c) 2012 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/ash/file_manager/file_tasks.h"
#include <stddef.h>
#include <map>
#include <string>
#include <utility>
#include "apps/launcher.h"
#include "ash/constants/ash_features.h"
#include "base/bind.h"
#include "base/containers/contains.h"
#include "base/feature_list.h"
#include "base/metrics/histogram_macros.h"
#include "base/strings/string_split.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/browser/apps/app_service/app_icon/app_icon_source.h"
#include "chrome/browser/apps/app_service/app_launch_params.h"
#include "chrome/browser/apps/app_service/app_service_proxy.h"
#include "chrome/browser/apps/app_service/app_service_proxy_factory.h"
#include "chrome/browser/apps/app_service/metrics/app_platform_metrics.h"
#include "chrome/browser/apps/app_service/metrics/app_service_metrics.h"
#include "chrome/browser/ash/crostini/crostini_features.h"
#include "chrome/browser/ash/drive/file_system_util.h"
#include "chrome/browser/ash/file_manager/app_id.h"
#include "chrome/browser/ash/file_manager/app_service_file_tasks.h"
#include "chrome/browser/ash/file_manager/arc_file_tasks.h"
#include "chrome/browser/ash/file_manager/file_browser_handlers.h"
#include "chrome/browser/ash/file_manager/file_tasks_notifier.h"
#include "chrome/browser/ash/file_manager/fileapi_util.h"
#include "chrome/browser/ash/file_manager/guest_os_file_tasks.h"
#include "chrome/browser/ash/file_manager/open_util.h"
#include "chrome/browser/ash/file_manager/open_with_browser.h"
#include "chrome/browser/ash/file_manager/url_util.h"
#include "chrome/browser/ash/file_manager/web_file_tasks.h"
#include "chrome/browser/chromeos/fileapi/file_system_backend.h"
#include "chrome/browser/extensions/extension_tab_util.h"
#include "chrome/browser/extensions/launch_util.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/web_applications/system_web_app_ui_utils.h"
#include "chrome/browser/ui/webui/extensions/extension_icon_source.h"
#include "chrome/browser/web_applications/web_app_id_constants.h"
#include "chrome/common/chrome_features.h"
#include "chrome/common/extensions/api/file_browser_handlers/file_browser_handler.h"
#include "chrome/common/extensions/api/file_manager_private.h"
#include "chrome/common/extensions/extension_constants.h"
#include "chrome/common/pref_names.h"
#include "components/drive/drive_api_util.h"
#include "components/prefs/pref_service.h"
#include "components/prefs/scoped_user_pref_update.h"
#include "components/services/app_service/public/cpp/file_handler.h"
#include "components/services/app_service/public/cpp/file_handler_info.h"
#include "components/services/app_service/public/mojom/types.mojom.h"
#include "extensions/browser/api/file_handlers/mime_util.h"
#include "extensions/browser/entry_info.h"
#include "extensions/browser/extension_host.h"
#include "extensions/browser/extension_prefs.h"
#include "extensions/browser/extension_registry.h"
#include "extensions/browser/extension_system.h"
#include "extensions/browser/extension_util.h"
#include "extensions/common/constants.h"
#include "extensions/common/extension_set.h"
#include "net/base/mime_util.h"
#include "storage/browser/file_system/file_system_url.h"
#include "third_party/blink/public/common/features.h"
#include "third_party/blink/public/common/mime_util/mime_util.h"
#include "ui/base/window_open_disposition.h"
#include "ui/shell_dialogs/select_file_dialog.h"
#include "url/gurl.h"
using extensions::Extension;
using extensions::api::file_manager_private::Verb;
using storage::FileSystemURL;
namespace file_manager {
namespace file_tasks {
const char kActionIdView[] = "view";
const char kActionIdSend[] = "send";
const char kActionIdSendMultiple[] = "send_multiple";
namespace {
// The values "file" and "app" are confusing, but cannot be changed easily as
// these are used in default task IDs stored in preferences.
const char kFileBrowserHandlerTaskType[] = "file";
const char kFileHandlerTaskType[] = "app";
const char kArcAppTaskType[] = "arc";
const char kCrostiniAppTaskType[] = "crostini";
const char kPluginVmAppTaskType[] = "pluginvm";
const char kWebAppTaskType[] = "web";
// Returns true if path_mime_set contains a Google document.
bool ContainsGoogleDocument(const std::vector<extensions::EntryInfo>& entries) {
for (const auto& it : entries) {
if (drive::util::HasHostedDocumentExtension(it.path))
return true;
}
return false;
}
// Removes all tasks except tasks handled by file manager.
void KeepOnlyFileManagerInternalTasks(std::vector<FullTaskDescriptor>* tasks) {
std::vector<FullTaskDescriptor> filtered;
for (FullTaskDescriptor& task : *tasks) {
if (task.task_descriptor.app_id == kFileManagerAppId)
filtered.push_back(task);
}
tasks->swap(filtered);
}
// Removes task |actions| handled by file manager.
void RemoveFileManagerInternalActions(const std::set<std::string>& actions,
std::vector<FullTaskDescriptor>* tasks) {
std::vector<FullTaskDescriptor> filtered;
for (FullTaskDescriptor& task : *tasks) {
const auto& action = task.task_descriptor.action_id;
if (task.task_descriptor.app_id != kFileManagerAppId) {
filtered.push_back(task);
} else if (actions.find(action) == actions.end()) {
filtered.push_back(task);
}
}
tasks->swap(filtered);
}
// Adjusts |tasks| to reflect the product decision that chrome://media-app
// should behave more like a user-installed app than a fallback handler.
// Specifically, only apps set as the default in user prefs should be preferred
// over chrome://media-app.
void AdjustTasksForMediaApp(const std::vector<extensions::EntryInfo>& entries,
std::vector<FullTaskDescriptor>* tasks) {
const auto task_for_app = [&](const std::string& app_id) {
return std::find_if(tasks->begin(), tasks->end(), [&](const auto& task) {
return task.task_descriptor.app_id == app_id;
});
};
const auto media_app_task = task_for_app(web_app::kMediaAppId);
if (media_app_task == tasks->end())
return;
// TOOD(crbug/1071289): For a while is_file_extension_match would always be
// false for System Web App manifests, even when specifying extension matches.
// So this line can be removed once the media app manifest is updated with a
// full complement of image file extensions.
media_app_task->is_file_extension_match = true;
// The logic in ChooseAndSetDefaultTask() also requires the following to hold.
// This should only fail if the media app is configured for "*".
// "image/*" does not count as "generic".
DCHECK(!media_app_task->is_generic_file_handler);
// Otherwise, build a new list with Media App at the front.
if (media_app_task == tasks->begin())
return;
std::vector<FullTaskDescriptor> new_tasks;
new_tasks.push_back(*media_app_task);
for (auto it = tasks->begin(); it != tasks->end(); ++it) {
if (it != media_app_task)
new_tasks.push_back(std::move(*it));
}
std::swap(*tasks, new_tasks);
}
// Returns true if the given task is a handler by built-in apps like the Files
// app itself or QuickOffice etc. They are used as the initial default app.
bool IsFallbackFileHandler(const FullTaskDescriptor& task) {
if ((task.task_descriptor.task_type !=
file_tasks::TASK_TYPE_FILE_BROWSER_HANDLER &&
task.task_descriptor.task_type != file_tasks::TASK_TYPE_FILE_HANDLER) ||
task.is_generic_file_handler) {
return false;
}
// Note that web_app::kMediaAppId does not appear in the
// list of built-in apps below. Doing so would mean the presence of any other
// handler of image files (e.g. Keep, Photos) would take precedence. But we
// want that only to occur if the user has explicitly set the preference for
// an app other than kMediaAppId to be the default (b/153387960).
constexpr const char* kBuiltInApps[] = {
kFileManagerAppId,
kTextEditorAppId,
kAudioPlayerAppId,
extension_misc::kQuickOfficeComponentExtensionId,
extension_misc::kQuickOfficeInternalExtensionId,
extension_misc::kQuickOfficeExtensionId};
return base::Contains(kBuiltInApps, task.task_descriptor.app_id);
}
// Gets the profile in which a file task owned by |extension| should be
// launched - for example, it makes sure that a file task is not handled in OTR
// profile for platform apps (outside a guest session).
Profile* GetProfileForExtensionTask(Profile* profile,
const extensions::Extension& extension) {
// In guest profile, all available task handlers are in OTR profile.
if (profile->IsGuestSession()) {
DCHECK(profile->IsOffTheRecord());
return profile;
}
// Outside guest sessions, if the task is handled by a platform app, launch
// the handler in the original profile.
if (extension.is_platform_app())
return profile->GetOriginalProfile();
return profile;
}
GURL GetIconURL(Profile* profile, const Extension& extension) {
if (apps::AppServiceProxyFactory::IsAppServiceAvailableForProfile(profile) &&
apps::AppServiceProxyFactory::GetForProfile(profile)
->AppRegistryCache()
.GetAppType(extension.id()) != apps::mojom::AppType::kUnknown) {
return apps::AppIconSource::GetIconURL(
extension.id(), extension_misc::EXTENSION_ICON_SMALL);
}
return extensions::ExtensionIconSource::GetIconURL(
&extension, extension_misc::EXTENSION_ICON_SMALL,
ExtensionIconSet::MATCH_BIGGER,
false); // grayscale
}
void ExecuteByArcAfterMimeTypesCollected(
Profile* profile,
const TaskDescriptor& task,
const std::vector<FileSystemURL>& file_urls,
FileTaskFinishedCallback done,
extensions::app_file_handler_util::MimeTypeCollector* mime_collector,
std::unique_ptr<std::vector<std::string>> mime_types) {
if (task.action_id == kActionIdSend ||
task.action_id == kActionIdSendMultiple) {
ExecuteAppServiceTask(profile, task, file_urls, *mime_types,
std::move(done));
return;
}
apps::RecordAppLaunchMetrics(
profile, apps::mojom::AppType::kArc, task.app_id,
apps::mojom::LaunchSource::kFromFileManager,
apps::mojom::LaunchContainer::kLaunchContainerWindow);
ExecuteArcTask(profile, task, file_urls, *mime_types, std::move(done));
}
void PostProcessFoundTasks(
Profile* profile,
const std::vector<extensions::EntryInfo>& entries,
FindTasksCallback callback,
std::unique_ptr<std::vector<FullTaskDescriptor>> result_list) {
// Google documents can only be handled by internal handlers.
if (ContainsGoogleDocument(entries))
KeepOnlyFileManagerInternalTasks(result_list.get());
std::set<std::string> disabled_actions;
// kFilesArchivemount is whether we allow "mount-archive" for every filename
// extension listed in ui/file_manager/file_manager/manifest.json (when the
// feature flag is true) or only for ".rar" and ".zip" (when the feature flag
// is false). False corresponds to the status quo as of milestone M92. This
// feature flag will be introduced in M93 (https://crrev.com/c/3017636), false
// by default.
//
// TODO(nigeltao): some time after M94, remove the kFilesArchivemount feature
// flag (scheduled to expire in M100) by hard-coding it to true, so that this
// if-block is never taken and can be deleted.
if (!base::FeatureList::IsEnabled(ash::features::kFilesArchivemount)) {
for (const auto& entry : entries) {
if (!entry.path.MatchesExtension(".rar") &&
!entry.path.MatchesExtension(".zip")) {
disabled_actions.emplace("mount-archive");
break;
}
}
}
// Remove file manager internal view-pdf and view-swf actions if needed.
if (!util::ShouldBeOpenedWithPlugin(profile, FILE_PATH_LITERAL(".pdf"), ""))
disabled_actions.emplace("view-pdf");
if (!util::ShouldBeOpenedWithPlugin(profile, FILE_PATH_LITERAL(".swf"), ""))
disabled_actions.emplace("view-swf");
if (!disabled_actions.empty())
RemoveFileManagerInternalActions(disabled_actions, result_list.get());
AdjustTasksForMediaApp(entries, result_list.get());
ChooseAndSetDefaultTask(*profile->GetPrefs(), entries, result_list.get());
std::move(callback).Run(std::move(result_list));
}
// Returns true if |extension_id| and |action_id| indicate that the file
// currently being handled should be opened with the browser. This function
// is used to handle certain action IDs of the file manager.
bool ShouldBeOpenedWithBrowser(const std::string& extension_id,
const std::string& action_id) {
return extension_id == kFileManagerAppId &&
(action_id == "view-pdf" || action_id == "view-swf" ||
action_id == "view-in-browser" ||
action_id == "open-hosted-generic" ||
action_id == "open-hosted-gdoc" ||
action_id == "open-hosted-gsheet" ||
action_id == "open-hosted-gslides");
}
// Opens the files specified by |file_urls| with the browser for |profile|.
// Returns true on success. It's a failure if no files are opened.
bool OpenFilesWithBrowser(Profile* profile,
const std::vector<FileSystemURL>& file_urls,
const std::string& action_id) {
int num_opened = 0;
for (const FileSystemURL& file_url : file_urls) {
if (chromeos::FileSystemBackend::CanHandleURL(file_url)) {
num_opened +=
util::OpenFileWithBrowser(profile, file_url, action_id) ? 1 : 0;
}
}
return num_opened > 0;
}
} // namespace
// Converts a string to a TaskType. Returns TASK_TYPE_UNKNOWN on error.
TaskType StringToTaskType(const std::string& str) {
if (str == kFileBrowserHandlerTaskType)
return TASK_TYPE_FILE_BROWSER_HANDLER;
if (str == kFileHandlerTaskType)
return TASK_TYPE_FILE_HANDLER;
if (str == kArcAppTaskType)
return TASK_TYPE_ARC_APP;
if (str == kCrostiniAppTaskType)
return TASK_TYPE_CROSTINI_APP;
if (str == kWebAppTaskType)
return TASK_TYPE_WEB_APP;
if (str == kPluginVmAppTaskType)
return TASK_TYPE_PLUGIN_VM_APP;
return TASK_TYPE_UNKNOWN;
}
// Converts a TaskType to a string.
std::string TaskTypeToString(TaskType task_type) {
switch (task_type) {
case TASK_TYPE_FILE_BROWSER_HANDLER:
return kFileBrowserHandlerTaskType;
case TASK_TYPE_FILE_HANDLER:
return kFileHandlerTaskType;
case TASK_TYPE_ARC_APP:
return kArcAppTaskType;
case TASK_TYPE_CROSTINI_APP:
return kCrostiniAppTaskType;
case TASK_TYPE_WEB_APP:
return kWebAppTaskType;
case TASK_TYPE_PLUGIN_VM_APP:
return kPluginVmAppTaskType;
case TASK_TYPE_UNKNOWN:
case DEPRECATED_TASK_TYPE_DRIVE_APP:
case NUM_TASK_TYPE:
break;
}
NOTREACHED();
return "";
}
FullTaskDescriptor::FullTaskDescriptor(const TaskDescriptor& in_task_descriptor,
const std::string& in_task_title,
const Verb in_task_verb,
const GURL& in_icon_url,
bool in_is_default,
bool in_is_generic_file_handler,
bool in_is_file_extension_match)
: task_descriptor(in_task_descriptor),
task_title(in_task_title),
task_verb(in_task_verb),
icon_url(in_icon_url),
is_default(in_is_default),
is_generic_file_handler(in_is_generic_file_handler),
is_file_extension_match(in_is_file_extension_match) {}
FullTaskDescriptor::FullTaskDescriptor(const FullTaskDescriptor& other) =
default;
FullTaskDescriptor& FullTaskDescriptor::operator=(
const FullTaskDescriptor& other) = default;
void UpdateDefaultTask(PrefService* pref_service,
const TaskDescriptor& task_descriptor,
const std::set<std::string>& suffixes,
const std::set<std::string>& mime_types) {
if (!pref_service)
return;
std::string task_id = TaskDescriptorToId(task_descriptor);
if (!mime_types.empty()) {
DictionaryPrefUpdate mime_type_pref(pref_service,
prefs::kDefaultTasksByMimeType);
for (const std::string& mime_type : mime_types) {
mime_type_pref->SetKey(mime_type, base::Value(task_id));
}
}
if (!suffixes.empty()) {
DictionaryPrefUpdate mime_type_pref(pref_service,
prefs::kDefaultTasksBySuffix);
for (const std::string& suffix : suffixes) {
// Suffixes are case insensitive.
std::string lower_suffix = base::ToLowerASCII(suffix);
mime_type_pref->SetKey(lower_suffix, base::Value(task_id));
}
}
}
bool GetDefaultTaskFromPrefs(const PrefService& pref_service,
const std::string& mime_type,
const std::string& suffix,
TaskDescriptor* task_out) {
VLOG(1) << "Looking for default for MIME type: " << mime_type
<< " and suffix: " << suffix;
if (!mime_type.empty()) {
const base::DictionaryValue* mime_task_prefs =
pref_service.GetDictionary(prefs::kDefaultTasksByMimeType);
DCHECK(mime_task_prefs);
LOG_IF(ERROR, !mime_task_prefs) << "Unable to open MIME type prefs";
if (mime_task_prefs) {
const std::string* task_id = mime_task_prefs->FindStringKey(mime_type);
if (task_id) {
VLOG(1) << "Found MIME default handler: " << *task_id;
return ParseTaskID(*task_id, task_out);
}
}
}
const base::DictionaryValue* suffix_task_prefs =
pref_service.GetDictionary(prefs::kDefaultTasksBySuffix);
DCHECK(suffix_task_prefs);
LOG_IF(ERROR, !suffix_task_prefs) << "Unable to open suffix prefs";
std::string lower_suffix = base::ToLowerASCII(suffix);
if (!suffix_task_prefs)
return false;
const std::string* task_id = suffix_task_prefs->FindStringKey(lower_suffix);
if (!task_id || task_id->empty())
return false;
VLOG(1) << "Found suffix default handler: " << *task_id;
return ParseTaskID(*task_id, task_out);
}
std::string MakeTaskID(const std::string& app_id,
TaskType task_type,
const std::string& action_id) {
return base::StringPrintf("%s|%s|%s",
app_id.c_str(),
TaskTypeToString(task_type).c_str(),
action_id.c_str());
}
std::string TaskDescriptorToId(const TaskDescriptor& task_descriptor) {
return MakeTaskID(task_descriptor.app_id,
task_descriptor.task_type,
task_descriptor.action_id);
}
bool ParseTaskID(const std::string& task_id, TaskDescriptor* task) {
DCHECK(task);
std::vector<std::string> result = base::SplitString(
task_id, "|", base::KEEP_WHITESPACE, base::SPLIT_WANT_NONEMPTY);
// Parse a legacy task ID that only contain two parts. The legacy task IDs
// can be stored in preferences.
if (result.size() == 2) {
task->task_type = TASK_TYPE_FILE_BROWSER_HANDLER;
task->app_id = result[0];
task->action_id = result[1];
return true;
}
if (result.size() != 3)
return false;
TaskType task_type = StringToTaskType(result[1]);
if (task_type == TASK_TYPE_UNKNOWN)
return false;
task->app_id = result[0];
task->task_type = task_type;
task->action_id = result[2];
return true;
}
bool ExecuteFileTask(Profile* profile,
const GURL& source_url,
const TaskDescriptor& task,
const std::vector<FileSystemURL>& file_urls,
FileTaskFinishedCallback done) {
UMA_HISTOGRAM_ENUMERATION("FileBrowser.ViewingTaskType", task.task_type,
NUM_TASK_TYPE);
if (drive::util::GetDriveConnectionStatus(profile) ==
drive::util::DRIVE_DISCONNECTED_NONETWORK) {
UMA_HISTOGRAM_ENUMERATION("FileBrowser.ViewingTaskType.Offline",
task.task_type, NUM_TASK_TYPE);
} else {
UMA_HISTOGRAM_ENUMERATION("FileBrowser.ViewingTaskType.Online",
task.task_type, NUM_TASK_TYPE);
}
// TODO(crbug.com/1005640): Move recording this metric to the App Service when
// file handling is supported there.
apps::RecordAppLaunch(task.app_id,
apps::mojom::LaunchSource::kFromFileManager);
if (auto* notifier = FileTasksNotifier::GetForProfile(profile)) {
notifier->NotifyFileTasks(file_urls);
}
// ARC apps needs mime types for launching. Retrieve them first.
if (task.task_type == TASK_TYPE_ARC_APP) {
extensions::app_file_handler_util::MimeTypeCollector* mime_collector =
new extensions::app_file_handler_util::MimeTypeCollector(profile);
mime_collector->CollectForURLs(
file_urls, base::BindOnce(&ExecuteByArcAfterMimeTypesCollected, profile,
task, file_urls, std::move(done),
base::Owned(mime_collector)));
return true;
}
if (task.task_type == TASK_TYPE_CROSTINI_APP ||
task.task_type == TASK_TYPE_PLUGIN_VM_APP) {
DCHECK_EQ(kGuestOsAppActionID, task.action_id);
ExecuteGuestOsTask(profile, task, file_urls, std::move(done));
return true;
}
if (task.task_type == TASK_TYPE_WEB_APP) {
ExecuteWebTask(profile, task, file_urls, std::move(done));
return true;
}
// Some action IDs of the file manager's file browser handlers require the
// files to be directly opened with the browser. In a multiprofile session
// this will always open on the current desktop, regardless of which profile
// owns the files, so return TASK_RESULT_OPENED.
if (ShouldBeOpenedWithBrowser(task.app_id, task.action_id)) {
const bool result =
OpenFilesWithBrowser(profile, file_urls, task.action_id);
if (result && done) {
std::move(done).Run(
extensions::api::file_manager_private::TASK_RESULT_OPENED, "");
}
return result;
}
// When the FilesSWA is enabled: Open Files SWA if the task is for Files app.
if (ash::features::IsFileManagerSwaEnabled() &&
task.app_id == kFileManagerAppId) {
std::u16string title;
const GURL destination_entry =
file_urls.size() ? file_urls[0].ToGURL() : GURL();
GURL files_swa_url =
::file_manager::util::GetFileManagerMainPageUrlWithParams(
ui::SelectFileDialog::SELECT_NONE, title,
/*current_directory_url=*/{},
/*selection_url=*/destination_entry,
/*target_name=*/{},
/*file_types=*/nullptr,
/*file_type_index=*/0,
/*search_query=*/{},
/*show_android_picker_apps=*/false);
web_app::SystemAppLaunchParams params;
params.url = files_swa_url;
web_app::LaunchSystemWebAppAsync(
profile, web_app::SystemAppType::FILE_MANAGER, params);
if (done) {
std::move(done).Run(
extensions::api::file_manager_private::TASK_RESULT_OPENED, "");
}
return true;
}
// Get the extension.
const Extension* extension = extensions::ExtensionRegistry::Get(
profile)->enabled_extensions().GetByID(task.app_id);
if (!extension)
return false;
Profile* extension_task_profile =
GetProfileForExtensionTask(profile, *extension);
// Execute the task.
if (task.task_type == TASK_TYPE_FILE_BROWSER_HANDLER) {
return file_browser_handlers::ExecuteFileBrowserHandler(
extension_task_profile, extension, task.action_id, file_urls,
std::move(done));
} else if (task.task_type == TASK_TYPE_FILE_HANDLER) {
std::vector<base::FilePath> paths;
for (const FileSystemURL& file_url : file_urls)
paths.push_back(file_url.path());
DCHECK(!extension->from_bookmark());
apps::LaunchPlatformAppWithFileHandler(extension_task_profile, extension,
task.action_id, paths);
// In a multiprofile session, platform apps will open on the desktop
// corresponding to the profile that owns the files, so return
// TASK_RESULT_MESSAGE_SENT.
if (!done.is_null())
std::move(done).Run(
extensions::api::file_manager_private::TASK_RESULT_MESSAGE_SENT, "");
return true;
}
NOTREACHED();
return false;
}
bool IsGoodMatchAppsFileHandler(
const apps::FileHandler& file_handler,
const std::vector<extensions::EntryInfo>& entries) {
std::set<std::string> mime_types =
apps::GetMimeTypesFromFileHandler(file_handler);
std::set<std::string> file_extensions =
apps::GetFileExtensionsFromFileHandler(file_handler);
if (mime_types.count("*") || mime_types.count("*/*") ||
file_extensions.count("*"))
return false;
// If a "text/*" file handler matches with an unsupported text MIME type, we
// don't regard it as a good match.
if (mime_types.count("text/*")) {
for (const auto& entry : entries) {
if (blink::IsUnsupportedTextMimeType(entry.mime_type))
return false;
}
}
// We consider it a good match if no directories are selected.
for (const auto& entry : entries) {
if (entry.is_directory)
return false;
}
return true;
}
void FindFileBrowserHandlerTasks(
Profile* profile,
const std::vector<GURL>& file_urls,
std::vector<FullTaskDescriptor>* result_list) {
DCHECK(!file_urls.empty());
DCHECK(result_list);
file_browser_handlers::FileBrowserHandlerList common_tasks =
file_browser_handlers::FindFileBrowserHandlers(profile, file_urls);
if (common_tasks.empty())
return;
const extensions::ExtensionSet& enabled_extensions =
extensions::ExtensionRegistry::Get(profile)->enabled_extensions();
for (const FileBrowserHandler* handler : common_tasks) {
const std::string extension_id = handler->extension_id();
const Extension* extension = enabled_extensions.GetByID(extension_id);
DCHECK(extension);
// TODO(zelidrag): Figure out how to expose icon URL that task defined in
// manifest instead of the default extension icon.
const GURL icon_url = GetIconURL(profile, *extension);
result_list->push_back(FullTaskDescriptor(
TaskDescriptor(extension_id, file_tasks::TASK_TYPE_FILE_BROWSER_HANDLER,
handler->id()),
handler->title(), Verb::VERB_NONE /* no verb for FileBrowserHandler */,
icon_url, false /* is_default */, false /* is_generic_file_handler */,
false /* is_file_extension_match */));
}
}
void FindExtensionAndAppTasks(
Profile* profile,
const std::vector<extensions::EntryInfo>& entries,
const std::vector<GURL>& file_urls,
FindTasksCallback callback,
std::unique_ptr<std::vector<FullTaskDescriptor>> result_list) {
std::vector<FullTaskDescriptor>* result_list_ptr = result_list.get();
// 2. Find and append file browser handler tasks. We know there aren't
// duplicates because "file_browser_handlers" and "file_handlers" shouldn't
// be used in the same manifest.json.
FindFileBrowserHandlerTasks(profile, file_urls, result_list_ptr);
// 3. Web tasks file_handlers (View/Open With), and Chrome app file_handlers.
FindAppServiceTasks(profile, entries, file_urls, result_list_ptr);
// 4. Find and append Guest OS tasks.
FindGuestOsTasks(profile, entries, file_urls, result_list_ptr,
// Done. Apply post-filtering and callback.
base::BindOnce(PostProcessFoundTasks, profile, entries,
std::move(callback), std::move(result_list)));
}
void FindAllTypesOfTasks(Profile* profile,
const std::vector<extensions::EntryInfo>& entries,
const std::vector<GURL>& file_urls,
FindTasksCallback callback) {
DCHECK(profile);
std::unique_ptr<std::vector<FullTaskDescriptor>> result_list(
new std::vector<FullTaskDescriptor>);
// 1. Find and append ARC handler tasks.
FindArcTasks(profile, entries, file_urls, std::move(result_list),
base::BindOnce(&FindExtensionAndAppTasks, profile, entries,
file_urls, std::move(callback)));
}
void ChooseAndSetDefaultTask(const PrefService& pref_service,
const std::vector<extensions::EntryInfo>& entries,
std::vector<FullTaskDescriptor>* tasks) {
// Collect the default tasks from the preferences into a set.
std::set<TaskDescriptor> default_tasks;
for (const extensions::EntryInfo& entry : entries) {
const base::FilePath& file_path = entry.path;
const std::string& mime_type = entry.mime_type;
TaskDescriptor default_task;
if (file_tasks::GetDefaultTaskFromPrefs(
pref_service, mime_type, file_path.Extension(), &default_task)) {
default_tasks.insert(default_task);
}
}
// Go through all the tasks from the beginning and see if there is any
// default task. If found, pick and set it as default and return.
for (FullTaskDescriptor& task : *tasks) {
DCHECK(!task.is_default);
if (base::Contains(default_tasks, task.task_descriptor)) {
task.is_default = true;
return;
}
}
// No default task, check for an explicit file extension match (without
// MIME match) in the extension manifest and pick that over the fallback
// handlers below (see crbug.com/803930)
for (FullTaskDescriptor& task : *tasks) {
if (task.is_file_extension_match && !task.is_generic_file_handler &&
!IsFallbackFileHandler(task)) {
task.is_default = true;
return;
}
}
// Prefer a fallback app over viewing in the browser (crbug.com/1111399).
// Unless it's HTML which should open in the browser (crbug.com/1121396).
for (FullTaskDescriptor& task : *tasks) {
if (IsFallbackFileHandler(task) &&
task.task_descriptor.action_id != "view-in-browser") {
const extensions::EntryInfo entry = entries[0];
const base::FilePath& file_path = entry.path;
if (IsHtmlFile(file_path)) {
break;
}
task.is_default = true;
return;
}
}
// No default tasks found. If there is any fallback file browser handler,
// make it as default task, so it's selected by default.
for (FullTaskDescriptor& task : *tasks) {
DCHECK(!task.is_default);
if (IsFallbackFileHandler(task)) {
task.is_default = true;
return;
}
}
}
bool IsHtmlFile(const base::FilePath& path) {
constexpr const char* kHtmlExtensions[] = {".htm", ".html", ".mhtml",
".xht", ".xhtm", ".xhtml"};
for (const char* extension : kHtmlExtensions) {
if (path.MatchesExtension(extension))
return true;
}
return false;
}
} // namespace file_tasks
} // namespace file_manager