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      1 // Copyright 2013 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 "extensions/common/manifest_handlers/kiosk_mode_info.h"
      6 
      7 #include "base/memory/scoped_ptr.h"
      8 #include "base/strings/string16.h"
      9 #include "base/strings/string_util.h"
     10 #include "base/strings/utf_string_conversions.h"
     11 #include "base/values.h"
     12 #include "extensions/common/manifest_constants.h"
     13 
     14 namespace extensions {
     15 
     16 namespace keys = manifest_keys;
     17 
     18 KioskModeInfo::KioskModeInfo(KioskStatus kiosk_status)
     19     : kiosk_status(kiosk_status) {
     20 }
     21 
     22 KioskModeInfo::~KioskModeInfo() {
     23 }
     24 
     25 // static
     26 bool KioskModeInfo::IsKioskEnabled(const Extension* extension) {
     27   KioskModeInfo* info = static_cast<KioskModeInfo*>(
     28       extension->GetManifestData(keys::kKioskMode));
     29   return info ? info->kiosk_status != NONE : false;
     30 }
     31 
     32 // static
     33 bool KioskModeInfo::IsKioskOnly(const Extension* extension) {
     34   KioskModeInfo* info = static_cast<KioskModeInfo*>(
     35       extension->GetManifestData(keys::kKioskMode));
     36   return info ? info->kiosk_status == ONLY : false;
     37 }
     38 
     39 KioskModeHandler::KioskModeHandler() {
     40   supported_keys_.push_back(keys::kKioskEnabled);
     41   supported_keys_.push_back(keys::kKioskOnly);
     42 }
     43 
     44 KioskModeHandler::~KioskModeHandler() {
     45 }
     46 
     47 bool KioskModeHandler::Parse(Extension* extension, base::string16* error) {
     48   const Manifest* manifest = extension->manifest();
     49   DCHECK(manifest->HasKey(keys::kKioskEnabled) ||
     50          manifest->HasKey(keys::kKioskOnly));
     51 
     52   bool kiosk_enabled = false;
     53   if (manifest->HasKey(keys::kKioskEnabled) &&
     54       !manifest->GetBoolean(keys::kKioskEnabled, &kiosk_enabled)) {
     55     *error = base::ASCIIToUTF16(manifest_errors::kInvalidKioskEnabled);
     56     return false;
     57   }
     58 
     59   bool kiosk_only = false;
     60   if (manifest->HasKey(keys::kKioskOnly) &&
     61       !manifest->GetBoolean(keys::kKioskOnly, &kiosk_only)) {
     62     *error = base::ASCIIToUTF16(manifest_errors::kInvalidKioskOnly);
     63     return false;
     64   }
     65 
     66   if (kiosk_only && !kiosk_enabled) {
     67     *error = base::ASCIIToUTF16(
     68         manifest_errors::kInvalidKioskOnlyButNotEnabled);
     69     return false;
     70   }
     71 
     72   // All other use cases should be already filtered out by manifest feature
     73   // checks.
     74   DCHECK(extension->is_platform_app());
     75 
     76   KioskModeInfo::KioskStatus kiosk_status = KioskModeInfo::NONE;
     77   if (kiosk_enabled)
     78     kiosk_status = kiosk_only ? KioskModeInfo::ONLY : KioskModeInfo::ENABLED;
     79 
     80   extension->SetManifestData(keys::kKioskMode,
     81       new KioskModeInfo(kiosk_status));
     82 
     83   return true;
     84 }
     85 
     86 const std::vector<std::string> KioskModeHandler::Keys() const {
     87   return supported_keys_;
     88 }
     89 
     90 }  // namespace extensions
     91