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)#ifndef CHROME_BROWSER_EXTENSIONS_EXTERNAL_PREF_LOADER_H_ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define CHROME_BROWSER_EXTENSIONS_EXTERNAL_PREF_LOADER_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "chrome/browser/extensions/external_loader.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <string> 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/compiler_specific.h" 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/memory/scoped_ptr.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/values.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace extensions { 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// A specialization of the ExternalLoader that uses a json file to 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// look up which external extensions are registered. 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Instances of this class are expected to be created and destroyed on the UI 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// thread and they are expecting public method calls from the UI thread. 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class ExternalPrefLoader : public ExternalLoader { 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) enum Options { 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) NONE = 0, 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Ensure that only root can force an external install by checking 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // that all components of the path to external extensions files are 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // owned by root and not writable by any non-root user. 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ENSURE_PATH_CONTROLLED_BY_ADMIN = 1 << 0 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // |base_path_id| is the directory containing the external_extensions.json 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // file or the standalone extension manifest files. Relative file paths to 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // extension files are resolved relative to this path. 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ExternalPrefLoader(int base_path_id, Options options); 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 382a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual const base::FilePath GetBaseCrxFilePath() OVERRIDE; 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) protected: 4158e6fbe4ee35d65e14b626c557d37565bf8ad179Ben Murdoch virtual ~ExternalPrefLoader() {} 4258e6fbe4ee35d65e14b626c557d37565bf8ad179Ben Murdoch 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void StartLoading() OVERRIDE; 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool IsOptionSet(Options option) { 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return (options_ & option) != 0; 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 4868043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles) // The resource id of the base path with the information about the json 4968043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles) // file containing which extensions to load. 5068043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles) const int base_path_id_; 5168043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles) 5268043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles) const Options options_; 5368043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles) 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) friend class base::RefCountedThreadSafe<ExternalLoader>; 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Actually searches for and loads candidate standalone extension preference 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // files in the path corresponding to |base_path_id|. 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Must be called on the file thread. 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void LoadOnFileThread(); 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Extracts the information contained in an external_extension.json file 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // regarding which extensions to install. |prefs| will be modified to 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // receive the extracted extension information. 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Must be called from the File thread. 665d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) void ReadExternalExtensionPrefFile(base::DictionaryValue* prefs); 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Extracts the information contained in standalone external extension 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // json files (<extension id>.json) regarding what external extensions 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // to install. |prefs| will be modified to receive the extracted extension 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // information. 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Must be called from the File thread. 735d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) void ReadStandaloneExtensionPrefFiles(base::DictionaryValue* prefs); 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // The path (coresponding to |base_path_id_| containing the json files 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // describing which extensions to load. 772a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::FilePath base_path_; 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(ExternalPrefLoader); 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// A simplified version of ExternalPrefLoader that loads the dictionary 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// from json data specified in a string. 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class ExternalTestingLoader : public ExternalLoader { 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) ExternalTestingLoader(const std::string& json_data, 872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const base::FilePath& fake_base_path); 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual const base::FilePath GetBaseCrxFilePath() OVERRIDE; 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) protected: 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void StartLoading() OVERRIDE; 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 945821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) friend class base::RefCountedThreadSafe<ExternalLoader>; 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~ExternalTestingLoader(); 985821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 992a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::FilePath fake_base_path_; 1005d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) scoped_ptr<base::DictionaryValue> testing_prefs_; 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(ExternalTestingLoader); 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace extensions 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // CHROME_BROWSER_EXTENSIONS_EXTERNAL_PREF_LOADER_H_ 108