iphone - RackSpace身份验证

Question

我正在尝试使用RackSpace API进行身份验证以使用ASIHttp库获取Auth-Token
但是我的问题是有时它可以正常工作，但是大多数时候我都遇到了崩溃

libobjc.A.dylib`objc_release:
0x16cd090:  pushl  %ebp
0x16cd091:  movl   %esp, %ebp
0x16cd093:  subl   $8, %esp
0x16cd096:  calll  0x16cd09b                 ; objc_release + 11
0x16cd09b:  popl   %ecx
0x16cd09c:  movl   8(%ebp), %eax
0x16cd09f:  testl  %eax, %eax
0x16cd0a1:  je     0x16cd0d5                 ; objc_release + 69
0x16cd0a3:  movl   (%eax), %edx
0x16cd0a5:  movl   16(%edx), %edx
0x16cd0a8:  andl   $-4, %edx
0x16cd0ab:  testb  $2, 2(%edx)
0x16cd0af:  je     0x16cd0c5                 ; objc_release + 53
0x16cd0b1:  movl   1002149(%ecx), %ecx
0x16cd0b7:  movl   %ecx, 4(%esp)
0x16cd0bb:  movl   %eax, (%esp)
0x16cd0be:  calll  0x16cc08c                 ; objc_msgSend
0x16cd0c3:  jmp    0x16cd0d5                 ; objc_release + 69
0x16cd0c5:  movl   %eax, (%esp)
0x16cd0c8:  movl   $0, 4(%esp)
0x16cd0d0:  calll  0x16ce9d0                 ; -[NSObject release]
0x16cd0d5:  addl   $8, %esp
0x16cd0d8:  popl   %ebp
0x16cd0d9:  ret

我无法理解实际出了什么问题。请帮助我解决此问题。

编辑:

这是我正在使用的代码

+ (void)authenticate
{
    [accessDetailsLock lock];
    ASIHTTPRequest *request = [[ASIHTTPRequest alloc] initWithURL:[NSURL URLWithString:RACSPACE_AUTHENTICATE_API]];
    [request addRequestHeader:@"Content-type" value:@"application/json"];

    NSMutableDictionary *dic = [[NSMutableDictionary alloc] init];
    [dic setObject:RACSPACE_USER_NAME forKey:@"username"];
    [dic setObject:RACSPACE_PASSWORD forKey:@"apiKey"];

    NSMutableDictionary *dic1 = [[NSMutableDictionary alloc] init];
    [dic1 setObject:dic forKey:@"RAX-KSKEY:apiKeyCredentials"];

    NSMutableDictionary *finalDic = [[NSMutableDictionary alloc] init];
    [finalDic setObject:dic1 forKey:@"auth"];

    SBJSON *sbJson= [[SBJSON alloc] init];
    NSString *strJson =[sbJson stringWithObject:finalDic];
    NSLog(@"%@",strJson);
    [request setPostBody:(NSMutableData*)[strJson dataUsingEncoding:NSUTF8StringEncoding]];

    [strJson release];
    [dic release];
    [dic1 release];
    [finalDic release];
    [request startSynchronous];

    if (![request error])
    {
        NSDictionary *responseHeaders = [request responseHeaders];
        NSLog(@"Response%@",[responseHeaders description]);
        NSLog(@"Response 2=%@",[request responseString]);
        SBJSON *parser = [[SBJSON alloc] init];
        NSDictionary *jsonObject = [[parser objectWithString:[request responseString]] objectForKey:@"access"];
        [parser release];

        authToken = [[jsonObject objectForKey:@"token"] objectForKey:@"id"];

        NSArray *services = [jsonObject objectForKey:@"serviceCatalog"];

        for (NSDictionary *service in services)
        {
            if ([[service valueForKey:@"type"] isEqualToString:@"object-store"])
            {
                if ([[service valueForKey:@"name"] isEqualToString:@"cloudFiles"])
                {

                    NSDictionary *endpoint = [[service valueForKey:@"endpoints"] objectAtIndex:0];
                    storageURL = [NSURL URLWithString:[endpoint valueForKey:@"publicURL"]];

                }
            }
            else if([[service valueForKey:@"type"] isEqualToString:@"rax:object-cdn"])
            {
                if ([[service valueForKey:@"name"] isEqualToString:@"cloudFilesCDN"])
                {
                    NSDictionary *endpoint = [[service valueForKey:@"endpoints"] objectAtIndex:0];
                    cdnManagementURL = [NSURL URLWithString:[endpoint valueForKey:@"publicURL"]];

                }
            }
        }
        [request release];
        [accessDetailsLock unlock];
    }

}

Answer 1

据我所知，看起来您正在释放一个已经在自动释放池中的对象。

看一下这一行:

NSString *strJson = [sbJson stringWithObject:finalDic];

从 SBJson source中，我可以看到它返回了自动释放的NSString。然后，您在此行下面释放:

[strJson release];

这导致了EXC_BAD_ACCESS。

我在Rackspace的Mobile团队工作，所以请告诉我是否对您有帮助，或者我可以通过其他任何方式提供帮助。