118 lines
3.7 KiB
Objective-C
118 lines
3.7 KiB
Objective-C
/*
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* Copyright 2019 Google
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#import "FIRInstanceIDBackupExcludedPlist.h"
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#import "FIRInstanceIDLogger.h"
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@interface FIRInstanceIDBackupExcludedPlist ()
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@property(nonatomic, readwrite, copy) NSString *fileName;
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@property(nonatomic, readwrite, copy) NSString *subDirectoryName;
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@property(nonatomic, readwrite, strong) NSDictionary *cachedPlistContents;
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@end
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@implementation FIRInstanceIDBackupExcludedPlist
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- (instancetype)initWithFileName:(NSString *)fileName subDirectory:(NSString *)subDirectory {
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self = [super init];
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if (self) {
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_fileName = [fileName copy];
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_subDirectoryName = [subDirectory copy];
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}
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return self;
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}
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- (BOOL)writeDictionary:(NSDictionary *)dict error:(NSError **)error {
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NSString *path = [self plistPathInDirectory];
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if (![dict writeToFile:path atomically:YES]) {
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FIRInstanceIDLoggerError(kFIRInstanceIDMessageCodeBackupExcludedPlist000,
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@"Failed to write to %@.plist", self.fileName);
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return NO;
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}
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// Successfully wrote contents -- change the in-memory contents
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self.cachedPlistContents = [dict copy];
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NSURL *URL = [NSURL fileURLWithPath:path];
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if (error) {
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*error = nil;
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}
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NSDictionary *preferences = [URL resourceValuesForKeys:@[ NSURLIsExcludedFromBackupKey ]
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error:error];
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if ([preferences[NSURLIsExcludedFromBackupKey] boolValue]) {
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return YES;
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}
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BOOL success = [URL setResourceValue:@(YES) forKey:NSURLIsExcludedFromBackupKey error:error];
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if (!success) {
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FIRInstanceIDLoggerError(kFIRInstanceIDMessageCodeBackupExcludedPlist001,
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@"Error excluding %@ from backup, %@", [URL lastPathComponent],
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error ? *error : @"");
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}
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return success;
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}
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- (BOOL)deleteFile:(NSError **)error {
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BOOL success = YES;
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NSString *path = [self plistPathInDirectory];
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if ([[NSFileManager defaultManager] fileExistsAtPath:path]) {
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success = [[NSFileManager defaultManager] removeItemAtPath:path error:error];
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}
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// remove the in-memory contents
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self.cachedPlistContents = nil;
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return success;
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}
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- (NSDictionary *)contentAsDictionary {
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if (!self.cachedPlistContents) {
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NSString *path = [self plistPathInDirectory];
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if ([[NSFileManager defaultManager] fileExistsAtPath:path]) {
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self.cachedPlistContents = [[NSDictionary alloc] initWithContentsOfFile:path];
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}
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}
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return self.cachedPlistContents;
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}
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- (BOOL)doesFileExist {
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NSString *path = [self plistPathInDirectory];
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return [[NSFileManager defaultManager] fileExistsAtPath:path];
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}
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#pragma mark - Private
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- (NSString *)plistPathInDirectory {
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NSArray *directoryPaths;
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NSString *plistNameWithExtension = [NSString stringWithFormat:@"%@.plist", self.fileName];
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directoryPaths =
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NSSearchPathForDirectoriesInDomains([self supportedDirectory], NSUserDomainMask, YES);
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NSArray *components = @[ directoryPaths.lastObject, _subDirectoryName, plistNameWithExtension ];
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return [NSString pathWithComponents:components];
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}
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- (NSSearchPathDirectory)supportedDirectory {
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#if TARGET_OS_TV
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return NSCachesDirectory;
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#else
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return NSApplicationSupportDirectory;
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#endif
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}
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@end
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