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Diffstat (limited to 'Firebase/Storage/FIRStorageUtils.m')
| -rw-r--r-- | Firebase/Storage/FIRStorageUtils.m | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/Firebase/Storage/FIRStorageUtils.m b/Firebase/Storage/FIRStorageUtils.m new file mode 100644 index 0000000..e0abe0a --- /dev/null +++ b/Firebase/Storage/FIRStorageUtils.m @@ -0,0 +1,121 @@ +// Copyright 2017 Google +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +#import <MobileCoreServices/MobileCoreServices.h> + +#import "FIRStorageUtils.h" + +#import "FIRStorageConstants_Private.h" +#import "FIRStoragePath.h" + +#import "FirebaseStorage.h" + +#import "GTMSessionFetcher.h" + +// This is the list at https://cloud.google.com/storage/docs/json_api/ without & and +. +NSString *const kGCSObjectAllowedCharacterSet = + @"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-._~!$'()*,;=:@"; + +@implementation FIRStorageUtils + ++ (nullable NSString *)GCSEscapedString:(NSString *)string { + NSCharacterSet *allowedCharacters = + [NSCharacterSet characterSetWithCharactersInString:kGCSObjectAllowedCharacterSet]; + + return [string stringByAddingPercentEncodingWithAllowedCharacters:allowedCharacters]; +} + ++ (nullable NSString *)MIMETypeForExtension:(NSString *)extension { + if (extension == nil) { + return nil; + } + + CFStringRef pathExtension = (__bridge_retained CFStringRef)extension; + CFStringRef type = + UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension, pathExtension, NULL); + NSString *mimeType = + (__bridge_transfer NSString *)UTTypeCopyPreferredTagWithClass(type, kUTTagClassMIMEType); + CFRelease(pathExtension); + if (type != NULL) { + CFRelease(type); + } + + return mimeType; +} + ++ (NSString *)queryStringForDictionary:(nullable NSDictionary *)dictionary { + if (!dictionary) { + return @""; + } + + __block NSMutableArray *queryItems = [[NSMutableArray alloc] initWithCapacity:[dictionary count]]; + [dictionary enumerateKeysAndObjectsUsingBlock:^(NSString *_Nonnull name, NSString *_Nonnull value, + BOOL *_Nonnull stop) { + NSString *item = + [FIRStorageUtils GCSEscapedString:[NSString stringWithFormat:@"%@=%@", name, value]]; + [queryItems addObject:item]; + }]; + return [queryItems componentsJoinedByString:@"&"]; +} + ++ (NSURLRequest *)defaultRequestForPath:(FIRStoragePath *)path { + NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init]; + NSURLComponents *components = [[NSURLComponents alloc] init]; + [components setScheme:kFIRStorageScheme]; + [components setHost:kFIRStorageHost]; + NSString *encodedPath = [self encodedURLForPath:path]; + [components setPercentEncodedPath:encodedPath]; + [request setURL:components.URL]; + return request; +} + ++ (NSString *)encodedURLForPath:(FIRStoragePath *)path { + NSString *bucketName = [FIRStorageUtils GCSEscapedString:path.bucket]; + NSString *objectName = [FIRStorageUtils GCSEscapedString:path.object]; + NSString *bucketFormat = [NSString stringWithFormat:kFIRStorageBucketPathFormat, bucketName]; + NSString *urlPath = [@"/" stringByAppendingPathComponent:bucketFormat]; + if (objectName) { + NSString *objectFormat = [NSString stringWithFormat:kFIRStorageObjectPathFormat, objectName]; + urlPath = [urlPath stringByAppendingFormat:@"/%@", objectFormat]; + } else { + urlPath = [urlPath stringByAppendingString:@"/o"]; + } + return [@"/" stringByAppendingString:[kFIRStorageVersionPath stringByAppendingString:urlPath]]; +} + +@end + +@implementation NSDictionary (FIRStorageNSDictionaryJSONHelpers) + ++ (nullable instancetype)frs_dictionaryFromJSONData:(nullable NSData *)data { + if (!data) { + return nil; + } + return [NSJSONSerialization JSONObjectWithData:data + options:NSJSONReadingMutableContainers + error:nil]; +} + +@end + +@implementation NSData (FIRStorageNSDataJSONHelpers) + ++ (nullable instancetype)frs_dataFromJSONDictionary:(nullable NSDictionary *)dictionary { + if (!dictionary) { + return nil; + } + return [NSJSONSerialization dataWithJSONObject:dictionary options:0 error:nil]; +} + +@end
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