[go: nahoru, domu]

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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#import "chrome/updater/policy/mac/managed_preference_policy_manager_impl.h"
#include <Foundation/Foundation.h>
#include "base/apple/foundation_util.h"
#include "base/enterprise_util.h"
#include "chrome/updater/constants.h"
#include "chrome/updater/policy/manager.h"
// Constants for managed preference policy keys.
static NSString* kGlobalPolicyKey = @"global";
static NSString* kUpdateDefaultKey = @"UpdateDefault";
static NSString* kDownloadPreferenceKey = @"DownloadPreference";
static NSString* kUpdatesSuppressedStartHourKey = @"UpdatesSuppressedStartHour";
static NSString* kUpdatesSuppressedStartMinuteKey =
@"UpdatesSuppressedStartMin";
static NSString* kUpdatesSuppressedDurationMinuteKey =
@"UpdatesSuppressedDurationMin";
static NSString* kTargetChannelKey = @"TargetChannel";
static NSString* kTargetVersionPrefixKey = @"TargetVersionPrefix";
static NSString* kRollbackToTargetVersionKey = @"RollbackToTargetVersion";
namespace updater {
namespace {
// Extracts an integer value from a NSString or NSNumber. Returns kPolicyNotSet
// for all unexpected cases.
int ReadPolicyInteger(id value) {
if (!value)
return kPolicyNotSet;
NSInteger result = kPolicyNotSet;
if ([value isKindOfClass:[NSString class]]) {
NSScanner* scanner = [NSScanner scannerWithString:(NSString*)value];
if (![scanner scanInteger:&result]) {
return kPolicyNotSet;
}
} else if ([value isKindOfClass:[NSNumber class]]) {
result = [(NSNumber*)value intValue];
}
return static_cast<int>(result);
}
// For historical reasons, "update" policy has different enum values in Manage
// Preferences from the Device Management. This function converts the former
// to latter.
// +----------------+---------------------+--------------------+
// | Update policy | Managed Preferences | Device Management |
// +----------------+---------------------+--------------------+
// | Enabled | 0 | 1 |
// +----------------+---------------------+--------------------+
// | Automatic only | 1 | 3 |
// +----------------+---------------------+--------------------+
// | Manual only | 2 | 2 |
// +----------------+---------------------+--------------------+
// | Disabled | 3 | 0 |
// +----------------+---------------------+--------------------+
// | Machine only | 4 | 4 |
// +----------------+---------------------+--------------------+
int TranslateUpdatePolicyValue(int update_policy_from_managed_preferences) {
switch (update_policy_from_managed_preferences) {
case 0:
return kPolicyEnabled;
case 1:
return kPolicyAutomaticUpdatesOnly;
case 2:
return kPolicyManualUpdatesOnly;
case 3:
return kPolicyDisabled;
case 4:
return kPolicyEnabledMachineOnly;
default:
return kPolicyNotSet;
}
}
} // namespace
} // namespace updater
/// Class that manages Mac global-level policies.
@interface CRUManagedPreferenceGlobalPolicySettings : NSObject {
NSString* __strong _downloadPreference;
};
@property(nonatomic, readonly) int lastCheckPeriodMinutes;
@property(nonatomic, readonly) int defaultUpdatePolicy;
@property(nonatomic, readonly, nullable) NSString* downloadPreference;
@property(nonatomic, readonly, nullable) NSString* proxyMode;
@property(nonatomic, readonly, nullable) NSString* proxyServer;
@property(nonatomic, readonly, nullable) NSString* proxyPacURL;
@property(nonatomic, readonly)
updater::UpdatesSuppressedTimes updatesSuppressed;
@end
@implementation CRUManagedPreferenceGlobalPolicySettings
@synthesize defaultUpdatePolicy = _defaultUpdatePolicy;
@synthesize updatesSuppressed = _updatesSuppressed;
- (instancetype)initWithDictionary:(CRUAppPolicyDictionary*)policyDict {
if (([super init])) {
_downloadPreference =
base::apple::ObjCCast<NSString>(policyDict[kDownloadPreferenceKey]);
_defaultUpdatePolicy = updater::TranslateUpdatePolicyValue(
updater::ReadPolicyInteger(policyDict[kUpdateDefaultKey]));
_updatesSuppressed.start_hour_ =
updater::ReadPolicyInteger(policyDict[kUpdatesSuppressedStartHourKey]);
_updatesSuppressed.start_minute_ = updater::ReadPolicyInteger(
policyDict[kUpdatesSuppressedStartMinuteKey]);
_updatesSuppressed.duration_minute_ = updater::ReadPolicyInteger(
policyDict[kUpdatesSuppressedDurationMinuteKey]);
}
return self;
}
- (int)lastCheckPeriodMinutes {
// LastCheckPeriodMinutes is not supported in Managed Preference policy.
return updater::kPolicyNotSet;
}
- (NSString*)downloadPreference {
if (_downloadPreference) {
return _downloadPreference;
} else {
return nil;
}
}
- (NSString*)proxyMode {
return nil; // ProxyMode is not supported in Managed Preference policy.
}
- (NSString*)proxyServer {
return nil; // ProxyServer is not supported in Managed Preference policy.
}
- (NSString*)proxyPacURL {
return nil; // ProxyPacURL is not supported in Managed Preference policy.
}
@end
/// Class that manages policies for a single App.
@interface CRUManagedPreferenceAppPolicySettings : NSObject {
NSString* __strong _targetChannel;
NSString* __strong _targetVersionPrefix;
}
@property(nonatomic, readonly) int updatePolicy;
@property(nonatomic, readonly) int rollbackToTargetVersion;
@property(nonatomic, readonly, nullable) NSString* targetChannel;
@property(nonatomic, readonly, nullable) NSString* targetVersionPrefix;
@end
@implementation CRUManagedPreferenceAppPolicySettings
@synthesize updatePolicy = _updatePolicy;
@synthesize rollbackToTargetVersion = _rollbackToTargetVersion;
- (instancetype)initWithDictionary:(CRUAppPolicyDictionary*)policyDict {
if (([super init])) {
_updatePolicy = updater::TranslateUpdatePolicyValue(
updater::ReadPolicyInteger(policyDict[kUpdateDefaultKey]));
_targetChannel =
base::apple::ObjCCast<NSString>(policyDict[kTargetChannelKey]);
_targetVersionPrefix =
base::apple::ObjCCast<NSString>(policyDict[kTargetVersionPrefixKey]);
_rollbackToTargetVersion =
updater::ReadPolicyInteger(policyDict[kRollbackToTargetVersionKey]);
}
return self;
}
- (NSString*)targetChannel {
if (_targetChannel) {
return [NSString stringWithString:_targetChannel];
} else {
return nil;
}
}
- (NSString*)targetVersionPrefix {
if (_targetVersionPrefix) {
return [NSString stringWithString:_targetVersionPrefix];
} else {
return nil;
}
}
@end
@implementation CRUManagedPreferencePolicyManager {
CRUManagedPreferenceGlobalPolicySettings* __strong _globalPolicy;
NSMutableDictionary<NSString*, CRUManagedPreferenceAppPolicySettings*>*
__strong _appPolicies;
}
@synthesize hasActivePolicy = _hasActivePolicy;
- (instancetype)initWithDictionary:(CRUUpdatePolicyDictionary*)policies {
if (([super init])) {
_hasActivePolicy = policies.count > 0;
// Always create a global policy instance for default values.
_globalPolicy = [[CRUManagedPreferenceGlobalPolicySettings alloc]
initWithDictionary:nil];
_appPolicies = [[NSMutableDictionary alloc] init];
for (NSString* __strong appid in policies.allKeys) {
if (![policies[appid] isKindOfClass:[CRUAppPolicyDictionary class]])
continue;
CRUAppPolicyDictionary* policyDict = policies[appid];
appid = appid.lowercaseString;
if ([appid isEqualToString:kGlobalPolicyKey]) {
_globalPolicy = [[CRUManagedPreferenceGlobalPolicySettings alloc]
initWithDictionary:policyDict];
} else {
CRUManagedPreferenceAppPolicySettings* appSettings =
[[CRUManagedPreferenceAppPolicySettings alloc]
initWithDictionary:policyDict];
[_appPolicies setObject:appSettings forKey:appid];
}
}
}
return self;
}
- (NSString*)source {
return [NSString
stringWithUTF8String:updater::kSourceManagedPreferencePolicyManager];
}
- (NSString*)downloadPreference {
return [_globalPolicy downloadPreference];
}
- (NSString*)proxyMode {
return [_globalPolicy proxyMode];
}
- (NSString*)proxyServer {
return [_globalPolicy proxyServer];
}
- (NSString*)proxyPacURL {
return [_globalPolicy proxyPacURL];
}
- (int)lastCheckPeriodMinutes {
return [_globalPolicy lastCheckPeriodMinutes];
}
- (int)defaultUpdatePolicy {
return [_globalPolicy defaultUpdatePolicy];
}
- (updater::UpdatesSuppressedTimes)updatesSuppressed {
return [_globalPolicy updatesSuppressed];
}
- (int)appUpdatePolicy:(NSString*)appid {
appid = appid.lowercaseString;
if (![_appPolicies objectForKey:appid])
return updater::kPolicyNotSet;
return [_appPolicies objectForKey:appid].updatePolicy;
}
- (NSString*)targetChannel:(NSString*)appid {
appid = appid.lowercaseString;
return [_appPolicies objectForKey:appid].targetChannel;
}
- (NSString*)targetVersionPrefix:(NSString*)appid {
appid = appid.lowercaseString;
return [_appPolicies objectForKey:appid].targetVersionPrefix;
}
- (int)rollbackToTargetVersion:(NSString*)appid {
appid = appid.lowercaseString;
if (![_appPolicies objectForKey:appid])
return updater::kPolicyNotSet;
return [_appPolicies objectForKey:appid].rollbackToTargetVersion;
}
- (NSArray<NSString*>*)appsWithPolicy {
return [_appPolicies allKeys];
}
@end