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Corrected bug that put the UTI instead of mimeType in retrieved assets

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Summary:
This pull request corrects a bug  found in `RCTAssetsLibraryRequestHandler` which used the asset UTI as the mimeType.

The code for finding the mimeType is based on the implementation used in `RCTImageLoader` and `RCTImageUtils`.
Closes https://github.com/facebook/react-native/pull/7349

Differential Revision: D3252796

Pulled By: nicklockwood

fb-gh-sync-id: b9303a99333e4744dfe23045f4a2755307305772
fbshipit-source-id: b9303a99333e4744dfe23045f4a2755307305772
This commit is contained in:
Yedidya Kennard 2016-05-03 08:51:58 -07:00 committed by Facebook Github Bot 1
parent 46ba1532fd
commit 55c8158c44
1 changed files with 5 additions and 1 deletions
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6
Libraries/CameraRoll/RCTAssetsLibraryRequestHandler.m
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@ -11,6 +11,7 @@
#import <AssetsLibrary/AssetsLibrary.h> #import <AssetsLibrary/AssetsLibrary.h>
#import <libkern/OSAtomic.h> #import <libkern/OSAtomic.h>
#import <MobileCoreServices/MobileCoreServices.h>
#import "RCTBridge.h" #import "RCTBridge.h"
#import "RCTUtils.h" #import "RCTUtils.h"
@ -54,9 +55,12 @@ RCT_EXPORT_MODULE()
ALAssetRepresentation *representation = [asset defaultRepresentation]; ALAssetRepresentation *representation = [asset defaultRepresentation];
NSInteger length = (NSInteger)representation.size; NSInteger length = (NSInteger)representation.size;
CFStringRef MIMEType = UTTypeCopyPreferredTagWithClass((__bridge CFStringRef _Nonnull)(representation.UTI), kUTTagClassMIMEType);
NSURLResponse *response = NSURLResponse *response =
[[NSURLResponse alloc] initWithURL:request.URL [[NSURLResponse alloc] initWithURL:request.URL
MIMEType:representation.UTI MIMEType:(__bridge NSString *)(MIMEType)
expectedContentLength:length expectedContentLength:length
textEncodingName:nil]; textEncodingName:nil];