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      1 // Copyright 2014 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/apps/drive/drive_app_provider.h"
      6 
      7 #include <vector>
      8 
      9 #include "base/bind.h"
     10 #include "base/bind_helpers.h"
     11 #include "base/logging.h"
     12 #include "base/message_loop/message_loop.h"
     13 #include "base/stl_util.h"
     14 #include "chrome/browser/apps/drive/drive_app_converter.h"
     15 #include "chrome/browser/apps/drive/drive_app_mapping.h"
     16 #include "chrome/browser/apps/drive/drive_service_bridge.h"
     17 #include "chrome/browser/drive/drive_app_registry.h"
     18 #include "chrome/browser/extensions/extension_service.h"
     19 #include "chrome/browser/profiles/profile.h"
     20 #include "chrome/common/extensions/manifest_handlers/app_launch_info.h"
     21 #include "extensions/browser/extension_registry.h"
     22 #include "extensions/browser/extension_registry_factory.h"
     23 #include "extensions/browser/extension_system.h"
     24 #include "extensions/browser/uninstall_reason.h"
     25 #include "extensions/common/extension.h"
     26 
     27 using extensions::Extension;
     28 using extensions::ExtensionRegistry;
     29 
     30 namespace {
     31 
     32 void IgnoreUninstallResult(google_apis::GDataErrorCode) {
     33 }
     34 
     35 }  // namespace
     36 
     37 DriveAppProvider::DriveAppProvider(Profile* profile)
     38     : profile_(profile),
     39       service_bridge_(DriveServiceBridge::Create(profile).Pass()),
     40       mapping_(new DriveAppMapping(profile->GetPrefs())),
     41       weak_ptr_factory_(this) {
     42   service_bridge_->GetAppRegistry()->AddObserver(this);
     43   ExtensionRegistry::Get(profile_)->AddObserver(this);
     44 }
     45 
     46 DriveAppProvider::~DriveAppProvider() {
     47   ExtensionRegistry::Get(profile_)->RemoveObserver(this);
     48   service_bridge_->GetAppRegistry()->RemoveObserver(this);
     49 }
     50 
     51 // static
     52 void DriveAppProvider::AppendDependsOnFactories(
     53     std::set<BrowserContextKeyedServiceFactory*>* factories) {
     54   factories->insert(extensions::ExtensionRegistryFactory::GetInstance());
     55   DriveServiceBridge::AppendDependsOnFactories(factories);
     56 }
     57 
     58 void DriveAppProvider::SetDriveServiceBridgeForTest(
     59     scoped_ptr<DriveServiceBridge> test_bridge) {
     60   service_bridge_->GetAppRegistry()->RemoveObserver(this);
     61   service_bridge_ = test_bridge.Pass();
     62   service_bridge_->GetAppRegistry()->AddObserver(this);
     63 }
     64 
     65 void DriveAppProvider::UpdateMappingAndExtensionSystem(
     66     const std::string& drive_app_id,
     67     const Extension* new_app,
     68     bool is_new_app_generated) {
     69   const std::string& new_chrome_app_id = new_app->id();
     70 
     71   const std::string existing_chrome_app_id =
     72       mapping_->GetChromeApp(drive_app_id);
     73   if (existing_chrome_app_id == new_chrome_app_id)
     74     return;
     75 
     76   const bool is_existing_app_generated =
     77       mapping_->IsChromeAppGenerated(existing_chrome_app_id);
     78   mapping_->Add(drive_app_id, new_chrome_app_id, is_new_app_generated);
     79 
     80   const Extension* existing_app =
     81       ExtensionRegistry::Get(profile_)->GetExtensionById(
     82           existing_chrome_app_id, ExtensionRegistry::EVERYTHING);
     83   if (existing_app && is_existing_app_generated) {
     84     extensions::ExtensionSystem::Get(profile_)
     85         ->extension_service()
     86         ->UninstallExtension(existing_chrome_app_id,
     87                              extensions::UNINSTALL_REASON_SYNC,
     88                              base::Bind(&base::DoNothing),
     89                              NULL);
     90   }
     91 }
     92 
     93 void DriveAppProvider::ProcessDeferredOnExtensionInstalled(
     94     const std::string drive_app_id,
     95     const std::string chrome_app_id) {
     96   const Extension* app = ExtensionRegistry::Get(profile_)->GetExtensionById(
     97       chrome_app_id, ExtensionRegistry::EVERYTHING);
     98   if (!app)
     99     return;
    100 
    101   UpdateMappingAndExtensionSystem(drive_app_id, app, false);
    102 }
    103 
    104 void DriveAppProvider::SchedulePendingConverters() {
    105   if (pending_converters_.empty())
    106     return;
    107 
    108   if (!pending_converters_.front()->IsStarted())
    109     pending_converters_.front()->Start();
    110 }
    111 
    112 void DriveAppProvider::OnLocalAppConverted(const DriveAppConverter* converter,
    113                                            bool success) {
    114   DCHECK_EQ(pending_converters_.front(), converter);
    115 
    116   if (success) {
    117     const bool was_generated =
    118         mapping_->GetDriveApp(converter->extension()->id()) ==
    119             converter->drive_app_info().app_id &&
    120         mapping_->IsChromeAppGenerated(converter->extension()->id());
    121     UpdateMappingAndExtensionSystem(
    122         converter->drive_app_info().app_id,
    123         converter->extension(),
    124         converter->is_new_install() || was_generated);
    125   } else {
    126     LOG(WARNING) << "Failed to convert drive app to web app, "
    127                  << "drive app id= " << converter->drive_app_info().app_id
    128                  << ", name=" << converter->drive_app_info().app_name;
    129   }
    130 
    131   pending_converters_.erase(pending_converters_.begin());
    132   SchedulePendingConverters();
    133 }
    134 
    135 bool DriveAppProvider::IsMappedUrlAppUpToDate(
    136     const drive::DriveAppInfo& drive_app) const {
    137   const std::string& url_app_id = mapping_->GetChromeApp(drive_app.app_id);
    138   if (url_app_id.empty())
    139     return false;
    140 
    141   const Extension* url_app = ExtensionRegistry::Get(profile_)->GetExtensionById(
    142       url_app_id, ExtensionRegistry::EVERYTHING);
    143   if (!url_app)
    144     return false;
    145   DCHECK(url_app->is_hosted_app() && url_app->from_bookmark());
    146 
    147   return drive_app.app_name == url_app->name() &&
    148          drive_app.create_url ==
    149              extensions::AppLaunchInfo::GetLaunchWebURL(url_app);
    150 }
    151 
    152 void DriveAppProvider::AddOrUpdateDriveApp(
    153     const drive::DriveAppInfo& drive_app) {
    154   const Extension* chrome_app =
    155       ExtensionRegistry::Get(profile_)->GetExtensionById(
    156           drive_app.product_id, ExtensionRegistry::EVERYTHING);
    157   if (chrome_app) {
    158     UpdateMappingAndExtensionSystem(drive_app.app_id, chrome_app, false);
    159     return;
    160   }
    161 
    162   if (IsMappedUrlAppUpToDate(drive_app))
    163     return;
    164 
    165   ScopedVector<DriveAppConverter>::iterator it = pending_converters_.begin();
    166   while (it != pending_converters_.end()) {
    167     if (!(*it)->IsStarted() &&
    168         (*it)->drive_app_info().app_id == drive_app.app_id) {
    169       it = pending_converters_.erase(it);
    170     } else {
    171       ++it;
    172     }
    173   }
    174 
    175   pending_converters_.push_back(
    176       new DriveAppConverter(profile_,
    177                             drive_app,
    178                             base::Bind(&DriveAppProvider::OnLocalAppConverted,
    179                                        base::Unretained(this))));
    180 }
    181 
    182 void DriveAppProvider::ProcessRemovedDriveApp(const std::string& drive_app_id) {
    183   const std::string chrome_app_id = mapping_->GetChromeApp(drive_app_id);
    184   const bool is_generated = mapping_->IsChromeAppGenerated(chrome_app_id);
    185   mapping_->Remove(drive_app_id);
    186 
    187   if (chrome_app_id.empty() || !is_generated)
    188     return;
    189 
    190   const Extension* existing_app =
    191       ExtensionRegistry::Get(profile_)
    192           ->GetExtensionById(chrome_app_id, ExtensionRegistry::EVERYTHING);
    193   if (!existing_app)
    194     return;
    195 
    196   extensions::ExtensionSystem::Get(profile_)
    197       ->extension_service()
    198       ->UninstallExtension(chrome_app_id,
    199                            extensions::UNINSTALL_REASON_SYNC,
    200                            base::Bind(&base::DoNothing),
    201                            NULL);
    202 }
    203 
    204 void DriveAppProvider::OnDriveAppRegistryUpdated() {
    205   service_bridge_->GetAppRegistry()->GetAppList(&drive_apps_);
    206 
    207   IdSet current_ids;
    208   for (size_t i = 0; i < drive_apps_.size(); ++i)
    209     current_ids.insert(drive_apps_[i].app_id);
    210 
    211   const IdSet existing_ids = mapping_->GetDriveAppIds();
    212   const IdSet ids_to_remove =
    213       base::STLSetDifference<IdSet>(existing_ids, current_ids);
    214   for (IdSet::const_iterator it = ids_to_remove.begin();
    215        it != ids_to_remove.end();
    216        ++it) {
    217     ProcessRemovedDriveApp(*it);
    218   }
    219 
    220   for (size_t i = 0; i < drive_apps_.size(); ++i) {
    221     AddOrUpdateDriveApp(drive_apps_[i]);
    222   }
    223   SchedulePendingConverters();
    224 }
    225 
    226 void DriveAppProvider::OnExtensionInstalled(
    227     content::BrowserContext* browser_context,
    228     const Extension* extension,
    229     bool is_update) {
    230   // Bail if the |extension| is installed from a converter. The post install
    231   // processing will be handled in OnLocalAppConverted.
    232   if (!pending_converters_.empty() &&
    233       pending_converters_.front()->IsInstalling(extension->id())) {
    234     return;
    235   }
    236 
    237   // Only user installed app reaches here. If it is mapped, make sure it is not
    238   // tagged as generated.
    239   const std::string drive_app_id = mapping_->GetDriveApp(extension->id());
    240   if (!drive_app_id.empty() &&
    241       mapping_->IsChromeAppGenerated(extension->id())) {
    242     mapping_->Add(drive_app_id, extension->id(), false);
    243     return;
    244   }
    245 
    246   for (size_t i = 0; i < drive_apps_.size(); ++i) {
    247     if (drive_apps_[i].product_id == extension->id()) {
    248       // Defer the processing because it touches the extensions system and
    249       // it is better to let the current task finish to avoid unexpected
    250       // incomplete status.
    251       base::MessageLoop::current()->PostTask(
    252           FROM_HERE,
    253           base::Bind(&DriveAppProvider::ProcessDeferredOnExtensionInstalled,
    254                      weak_ptr_factory_.GetWeakPtr(),
    255                      drive_apps_[i].app_id,
    256                      extension->id()));
    257       return;
    258     }
    259   }
    260 }
    261 
    262 void DriveAppProvider::OnExtensionUninstalled(
    263     content::BrowserContext* browser_context,
    264     const Extension* extension,
    265     extensions::UninstallReason reason) {
    266   std::string drive_app_id = mapping_->GetDriveApp(extension->id());
    267   if (drive_app_id.empty())
    268     return;
    269 
    270   service_bridge_->GetAppRegistry()->UninstallApp(
    271       drive_app_id, base::Bind(&IgnoreUninstallResult));
    272 }
    273