| // Copyright (c) 2011 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/policy/policy_path_parser.h" |
| |
| #import <Cocoa/Cocoa.h> |
| #include <stddef.h> |
| #import <SystemConfiguration/SCDynamicStore.h> |
| #import <SystemConfiguration/SCDynamicStoreCopySpecific.h> |
| #import <SystemConfiguration/SystemConfiguration.h> |
| |
| #include <string> |
| |
| #include "base/files/file_path.h" |
| #include "base/logging.h" |
| #include "base/mac/foundation_util.h" |
| #include "base/mac/scoped_cftyperef.h" |
| #include "base/macros.h" |
| #include "base/strings/sys_string_conversions.h" |
| #include "components/policy/policy_constants.h" |
| |
| namespace policy { |
| |
| namespace path_parser { |
| |
| const char kUserNamePolicyVarName[] = "${user_name}"; |
| const char kMachineNamePolicyVarName[] = "${machine_name}"; |
| const char kMacUsersDirectory[] = "${users}"; |
| const char kMacDocumentsFolderVarName[] = "${documents}"; |
| |
| struct MacFolderNamesToSPDMapping { |
| const char* name; |
| NSSearchPathDirectory id; |
| }; |
| |
| // Mapping from variable names to MacOS NSSearchPathDirectory ids. |
| const MacFolderNamesToSPDMapping mac_folder_mapping[] = { |
| {kMacUsersDirectory, NSUserDirectory}, |
| {kMacDocumentsFolderVarName, NSDocumentDirectory}}; |
| |
| // Replaces all variable occurrences in the policy string with the respective |
| // system settings values. |
| base::FilePath::StringType ExpandPathVariables( |
| const base::FilePath::StringType& untranslated_string) { |
| base::FilePath::StringType result(untranslated_string); |
| if (result.length() == 0) |
| return result; |
| // Sanitize quotes in case of any around the whole string. |
| if (result.length() > 1 && |
| ((result.front() == '"' && result.back() == '"') || |
| (result.front() == '\'' && result.back() == '\''))) { |
| // Strip first and last char which should be matching quotes now. |
| result = result.substr(1, result.length() - 2); |
| } |
| // First translate all path variables we recognize. |
| for (const auto& mapping : mac_folder_mapping) { |
| size_t position = result.find(mapping.name); |
| if (position != std::string::npos) { |
| NSArray* searchpaths = NSSearchPathForDirectoriesInDomains( |
| mapping.id, NSAllDomainsMask, true); |
| if ([searchpaths count] > 0) { |
| NSString *variable_value = [searchpaths objectAtIndex:0]; |
| result.replace(position, strlen(mapping.name), |
| base::SysNSStringToUTF8(variable_value)); |
| } |
| } |
| } |
| // Next translate two special variables ${user_name} and ${machine_name} |
| size_t position = result.find(kUserNamePolicyVarName); |
| if (position != std::string::npos) { |
| NSString* username = NSUserName(); |
| if (username) { |
| result.replace(position, strlen(kUserNamePolicyVarName), |
| base::SysNSStringToUTF8(username)); |
| } else { |
| LOG(ERROR) << "Username variable can not be resolved."; |
| } |
| } |
| position = result.find(kMachineNamePolicyVarName); |
| if (position != std::string::npos) { |
| SCDynamicStoreContext context = {0, nullptr, nullptr, nullptr}; |
| base::ScopedCFTypeRef<SCDynamicStoreRef> store(SCDynamicStoreCreate( |
| kCFAllocatorDefault, CFSTR("policy_subsystem"), nullptr, &context)); |
| base::ScopedCFTypeRef<CFStringRef> machinename( |
| SCDynamicStoreCopyLocalHostName(store)); |
| if (machinename) { |
| result.replace(position, strlen(kMachineNamePolicyVarName), |
| base::SysCFStringRefToUTF8(machinename)); |
| } else { |
| int error = SCError(); |
| LOG(ERROR) << "Machine name variable can not be resolved. Error: " |
| << error << " - " << SCErrorString(error); |
| // Revert to a safe default if it is impossible to fetch the real name. |
| result.replace(position, strlen(kMachineNamePolicyVarName), "localhost"); |
| } |
| } |
| return result; |
| } |
| |
| void CheckUserDataDirPolicy(base::FilePath* user_data_dir) { |
| // Since the configuration management infrastructure is not initialized when |
| // this code runs, read the policy preference directly. |
| #if defined(GOOGLE_CHROME_BUILD) |
| // Explicitly access the "com.google.Chrome" bundle ID, no matter what this |
| // app's bundle ID actually is. All channels of Chrome should obey the same |
| // policies. |
| CFStringRef bundle_id = CFSTR("com.google.Chrome"); |
| #else |
| base::ScopedCFTypeRef<CFStringRef> bundle_id( |
| base::SysUTF8ToCFStringRef(base::mac::BaseBundleID())); |
| #endif |
| |
| base::ScopedCFTypeRef<CFStringRef> key( |
| base::SysUTF8ToCFStringRef(policy::key::kUserDataDir)); |
| base::ScopedCFTypeRef<CFPropertyListRef> value( |
| CFPreferencesCopyAppValue(key, bundle_id)); |
| |
| if (!value || !CFPreferencesAppValueIsForced(key, bundle_id)) |
| return; |
| CFStringRef value_string = base::mac::CFCast<CFStringRef>(value); |
| if (!value_string) |
| return; |
| |
| // Now replace any vars the user might have used. |
| std::string string_value = base::SysCFStringRefToUTF8(value_string); |
| string_value = policy::path_parser::ExpandPathVariables(string_value); |
| *user_data_dir = base::FilePath(string_value); |
| } |
| |
| void CheckDiskCacheDirPolicy(base::FilePath* user_data_dir) { |
| // This function is not implemented in Mac because it's only used by the |
| // feature in Windows. |
| NOTREACHED(); |
| } |
| |
| } // namespace path_parser |
| |
| } // namespace policy |