Merge pull request #10545 from Mazyod/ios-http-request-leaks

Fix major memory leaks in iOS http request

cocos/network/HttpAsynConnection.h

@@ -36,7 +36,7 @@
 
 @property (strong) NSString *sslFile;
 
-@property (strong) NSDictionary *responseHeader;
+@property (copy) NSDictionary *responseHeader;
 
 @property (strong) NSMutableData *responseData;
 

cocos/network/HttpAsynConnection.m

@@ -24,6 +24,12 @@
 
 #import "HttpAsynConnection.h"
 
+@interface HttpAsynConnection ()
+
+@property (readwrite) NSString *statusString;
+
+@end
+
 @implementation HttpAsynConnection
 
 @synthesize srcURL;
@@ -38,19 +44,33 @@
 @synthesize finish;
 @synthesize runLoop;
 
+- (void)dealloc
+{
+    [srcURL release];
+    [sslFile release];
+    [responseHeader release];
+    [responseData release];
+    [statusString release];
+    [responseError release];
+    [conn release];
+    [runLoop release];
+    
+    [super dealloc];
+}
+
 - (void) startRequest:(NSURLRequest *)request
 {
     NSLog(@"Starting to load %@", srcURL);
     finish = false;
 
-    responseData = [NSMutableData new];
+    self.responseData = [NSMutableData data];
     getDataTime = 0;
-    responseError = nil;
+    self.responseError = nil;
     
     // create the connection with the target request and this class as the delegate
-    self.conn = [[NSURLConnection alloc] initWithRequest:request
-                                                delegate:self
-                                        startImmediately:NO];
+    self.conn = [[[NSURLConnection alloc] initWithRequest:request
+                                                 delegate:self
+                                         startImmediately:NO] autorelease];
     
     [self.conn scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode];
     
@@ -71,12 +91,12 @@
     
     NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;
     //NSLog(@"All headers = %@", [httpResponse allHeaderFields]);
-    responseHeader = [[httpResponse allHeaderFields] copy];
+    self.responseHeader = [httpResponse allHeaderFields];
 
     responseCode = httpResponse.statusCode;
-    statusString = [[NSHTTPURLResponse localizedStringForStatusCode:responseCode] copy];
+    self.statusString = [NSHTTPURLResponse localizedStringForStatusCode:responseCode];
     if(responseCode == 200)
-        statusString = @"OK";
+        self.statusString = @"OK";
  
     /*The individual values of the numeric status codes defined for HTTP/1.1
     | “200”  ; OK
@@ -118,7 +138,7 @@
   didFailWithError:(NSError *)error
 {
     //NSLog(@"Load failed with error %@", [error localizedDescription]);
-    responseError = [error copy];
+    self.responseError = error;
     
     finish = true;
 }

cocos/network/HttpClient-ios.mm

@@ -77,8 +77,8 @@ void HttpClient::networkThread()
 {    
     auto scheduler = Director::getInstance()->getScheduler();
     
-    while (true) 
-    {
+    while (true) @autoreleasepool {
+        
         HttpRequest *request;
 
         // step 1: send http request if the requestQueue isn't empty
@@ -224,16 +224,16 @@ static int processTask(HttpRequest *request, NSString* requestType, void *stream
         }
     }
     
-    HttpAsynConnection *httpAsynConn = [HttpAsynConnection new];
+    HttpAsynConnection *httpAsynConn = [[HttpAsynConnection new] autorelease];
     httpAsynConn.srcURL = urlstring;
     httpAsynConn.sslFile = nil;
-    NSString *sslFile = nil;
+    
     if(!s_sslCaFilename.empty())
     {
         long len = s_sslCaFilename.length();
         long pos = s_sslCaFilename.rfind('.', len-1);
-        [sslFile initWithUTF8String:s_sslCaFilename.substr(0, pos-1).c_str()];
-        httpAsynConn.sslFile = sslFile;
+        
+        httpAsynConn.sslFile = [NSString stringWithUTF8String:s_sslCaFilename.substr(0, pos-1).c_str()];
     }
     [httpAsynConn startRequest:nsrequest];
     
@@ -281,8 +281,8 @@ static int processTask(HttpRequest *request, NSString* requestType, void *stream
     }
     
     //handle response header
-    NSMutableString *header = [NSMutableString new];
-    [header appendFormat:@"HTTP/1.1 %ld %@\n", httpAsynConn.responseCode, httpAsynConn.statusString];
+    NSMutableString *header = [NSMutableString string];
+    [header appendFormat:@"HTTP/1.1 %ld %@\n", (long)httpAsynConn.responseCode, httpAsynConn.statusString];
     for (id key in httpAsynConn.responseHeader)
     {
         [header appendFormat:@"%@: %@\n", key, [httpAsynConn.responseHeader objectForKey:key]];