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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,85 @@ | ||
| #import "CodePush.h" | ||
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| @implementation CodePushDownloadHandler | ||
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| - (id)init:(NSString *)downloadFilePath | ||
| progressCallback:(void (^)(long, long))progressCallback | ||
| doneCallback:(void (^)())doneCallback | ||
| failCallback:(void (^)(NSError *err))failCallback { | ||
| self.outputFileStream = [NSOutputStream outputStreamToFileAtPath:downloadFilePath | ||
| append:NO]; | ||
| self.receivedContentLength = 0; | ||
| self.progressCallback = progressCallback; | ||
| self.doneCallback = doneCallback; | ||
| self.failCallback = failCallback; | ||
| return self; | ||
| } | ||
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| -(void)download:(NSString*)url { | ||
| NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:url] | ||
| cachePolicy:NSURLRequestUseProtocolCachePolicy | ||
| timeoutInterval:60.0]; | ||
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| NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request | ||
| delegate:self | ||
| startImmediately:NO]; | ||
| [connection scheduleInRunLoop:[NSRunLoop mainRunLoop] | ||
| forMode:NSDefaultRunLoopMode]; | ||
| [connection start]; | ||
| } | ||
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| #pragma mark NSURLConnection Delegate Methods | ||
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| - (NSCachedURLResponse *)connection:(NSURLConnection *)connection | ||
| willCacheResponse:(NSCachedURLResponse*)cachedResponse { | ||
| // Return nil to indicate not necessary to store a cached response for this connection | ||
| return nil; | ||
| } | ||
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| -(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response { | ||
| self.expectedContentLength = response.expectedContentLength; | ||
| [self.outputFileStream open]; | ||
| } | ||
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| -(void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { | ||
| self.receivedContentLength = self.receivedContentLength + [data length]; | ||
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| NSInteger bytesLeft = [data length]; | ||
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| do { | ||
| NSInteger bytesWritten = [self.outputFileStream write:[data bytes] | ||
| maxLength:bytesLeft]; | ||
| if (bytesWritten == -1) { | ||
| break; | ||
| } | ||
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| bytesLeft -= bytesWritten; | ||
| } while (bytesLeft > 0); | ||
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| self.progressCallback(self.expectedContentLength, self.receivedContentLength); | ||
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| // bytesLeft should not be negative. | ||
| assert(bytesLeft >= 0); | ||
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| if (bytesLeft) { | ||
| [self.outputFileStream close]; | ||
| [connection cancel]; | ||
| self.failCallback([self.outputFileStream streamError]); | ||
| } | ||
| } | ||
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| - (void)connection:(NSURLConnection*)connection didFailWithError:(NSError*)error | ||
| { | ||
| [self.outputFileStream close]; | ||
| self.failCallback(error); | ||
| } | ||
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| -(void)connectionDidFinishLoading:(NSURLConnection *)connection { | ||
| // We should have received all of the bytes if this is called. | ||
| assert(self.receivedContentLength == self.expectedContentLength); | ||
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| [self.outputFileStream close]; | ||
| self.doneCallback(); | ||
| } | ||
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| @end |
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