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Remove executeRequest from HttpManager. It has some show-stopping bugs, like leaking semaphore counts (since it never waited) and being generally thread-unsafe. Implementing it in a way that would be asynchronous and thread-safe is a non-trivial task, so I've opted to remove it and change callers to use executeRequestSynchronously.

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This commit is contained in:
Cameron Gutman
2015-07-08 21:26:01 -07:00
parent c0b2bbe552
commit 6bb559303b
4 changed files with 10 additions and 15 deletions
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1
Limelight/Network/HttpManager.h
View File

@@ -27,7 +27,6 @@
- (NSURLRequest*) newQuitAppRequest;
- (NSURLRequest*) newAppAssetRequestWithAppId:(NSString*)appId;
- (void) executeRequestSynchronously:(HttpRequest*)request;
- (void) executeRequest:(HttpRequest*)request;
@end

4
Limelight/Network/HttpManager.m
View File

@@ -62,10 +62,6 @@ static const NSString* PORT = @"47984";
_errorOccurred = false;
}
- (void) executeRequest:(HttpRequest*)request {
[NSURLConnection connectionWithRequest:request.request delegate:self];
}
- (NSURLRequest*) createRequestFromString:(NSString*) urlString enableTimeout:(BOOL)normalTimeout {
NSURL* url = [[NSURL alloc] initWithString:urlString];
NSMutableURLRequest* request = [NSMutableURLRequest requestWithURL:url];

18
Limelight/Network/PairManager.m
View File

@@ -60,7 +60,7 @@
}
NSInteger pairedStatus;
if (![pairResp getIntTag:@"paired" value:&pairedStatus] || !pairedStatus) {
[_httpManager executeRequest:[HttpRequest requestWithUrlRequest:[_httpManager newUnpairRequest]]];
[_httpManager executeRequestSynchronously:[HttpRequest requestWithUrlRequest:[_httpManager newUnpairRequest]]];
[_callback pairFailed:@"Pairing was declined by the target."];
return;
}
@@ -79,7 +79,7 @@
return;
}
if (![challengeResp getIntTag:@"paired" value:&pairedStatus] || !pairedStatus) {
[_httpManager executeRequest:[HttpRequest requestWithUrlRequest:[_httpManager newUnpairRequest]]];
[_httpManager executeRequestSynchronously:[HttpRequest requestWithUrlRequest:[_httpManager newUnpairRequest]]];
[_callback pairFailed:@"Pairing stage #2 failed"];
return;
}
@@ -100,7 +100,7 @@
return;
}
if (![secretResp getIntTag:@"paired" value:&pairedStatus] || !pairedStatus) {
[_httpManager executeRequest:[HttpRequest requestWithUrlRequest:[_httpManager newUnpairRequest]]];
[_httpManager executeRequestSynchronously:[HttpRequest requestWithUrlRequest:[_httpManager newUnpairRequest]]];
[_callback pairFailed:@"Pairing stage #3 failed"];
return;
}
@@ -110,14 +110,14 @@
NSData* serverSignature = [serverSecretResp subdataWithRange:NSMakeRange(16, 256)];
if (![cryptoMan verifySignature:serverSecret withSignature:serverSignature andCert:[Utils hexToBytes:plainCert]]) {
[_httpManager executeRequest:[HttpRequest requestWithUrlRequest:[_httpManager newUnpairRequest]]];
[_httpManager executeRequestSynchronously:[HttpRequest requestWithUrlRequest:[_httpManager newUnpairRequest]]];
[_callback pairFailed:@"Server certificate invalid"];
return;
}
NSData* serverChallengeRespHash = [cryptoMan SHA1HashData:[self concatData:[self concatData:randomChallenge with:[CryptoManager getSignatureFromCert:[Utils hexToBytes:plainCert]]] with:serverSecret]];
if (![serverChallengeRespHash isEqual:serverResponse]) {
[_httpManager executeRequest:[HttpRequest requestWithUrlRequest:[_httpManager newUnpairRequest]]];
[_httpManager executeRequestSynchronously:[HttpRequest requestWithUrlRequest:[_httpManager newUnpairRequest]]];
[_callback pairFailed:@"Incorrect PIN"];
return;
}
@@ -129,7 +129,7 @@
return;
}
if (![clientSecretResp getIntTag:@"paired" value:&pairedStatus] || !pairedStatus) {
[_httpManager executeRequest:[HttpRequest requestWithUrlRequest:[_httpManager newUnpairRequest]]];
[_httpManager executeRequestSynchronously:[HttpRequest requestWithUrlRequest:[_httpManager newUnpairRequest]]];
[_callback pairFailed:@"Pairing stage #4 failed"];
return;
}
@@ -140,7 +140,7 @@
return;
}
if (![clientPairChallengeResp getIntTag:@"paired" value:&pairedStatus] || !pairedStatus) {
[_httpManager executeRequest:[HttpRequest requestWithUrlRequest:[_httpManager newUnpairRequest]]];
[_httpManager executeRequestSynchronously:[HttpRequest requestWithUrlRequest:[_httpManager newUnpairRequest]]];
[_callback pairFailed:@"Pairing stage #5 failed"];
return;
}
@@ -149,11 +149,11 @@
- (BOOL) verifyResponseStatus:(HttpResponse*)resp {
if (resp == nil) {
[_httpManager executeRequest:[HttpRequest requestWithUrlRequest:[_httpManager newUnpairRequest]]];
[_httpManager executeRequestSynchronously:[HttpRequest requestWithUrlRequest:[_httpManager newUnpairRequest]]];
[_callback pairFailed:@"Network error occured."];
return false;
} else if (![resp isStatusOk]) {
[_httpManager executeRequest:[HttpRequest requestWithUrlRequest:[_httpManager newUnpairRequest]]];
[_httpManager executeRequestSynchronously:[HttpRequest requestWithUrlRequest:[_httpManager newUnpairRequest]]];
[_callback pairFailed:resp.statusMessage];
return false;
} else {

2
Limelight/ViewControllers/MainFrameViewController.m
View File

@@ -160,7 +160,7 @@ static NSArray* appList;
[longClickAlert addAction:[UIAlertAction actionWithTitle:@"Unpair" style:UIAlertActionStyleDefault handler:^(UIAlertAction* action){
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
HttpManager* hMan = [[HttpManager alloc] initWithHost:host.address uniqueId:_uniqueId deviceName:deviceName cert:_cert];
[hMan executeRequest:[HttpRequest requestWithUrlRequest:[hMan newUnpairRequest]]];
[hMan executeRequestSynchronously:[HttpRequest requestWithUrlRequest:[hMan newUnpairRequest]]];
});
}]];
} else {