iphone - iPhone 上的同步 SSL 证书处理

Question

我想知道是否有人可以帮助我了解如何将 SSL 证书处理添加到同步连接到 https 服务。

我知道如何使用异步连接执行此操作，但不知道如何使用同步连接。

                NSString *URLpath = @"https://mydomain.com/";
    NSURL *myURL = [[NSURL alloc] initWithString:URLpath];
    NSMutableURLRequest *myURLRequest = [NSMutableURLRequest requestWithURL:myURL cachePolicy:NSURLRequestReloadIgnoringLocalCacheData timeoutInterval:60];
    [myURL release];
    [myURLRequest setHTTPMethod:@"POST"];

    NSString *httpBodystr = @"setting1=1";
    [myURLRequest setHTTPBody:[httpBodystr dataUsingEncoding:NSUTF8StringEncoding]];

    NSHTTPURLResponse* myURLResponse; 
    NSError* myError;
    NSData* myDataResult = [NSURLConnection sendSynchronousRequest:myURLRequest returningResponse:&myURLResponse error:&myError];

            //I guess I am meant to put some SSL handling code here

谢谢。

Answer 1

使用静态 sendSynchronousRequest 函数是不可能的，但我找到了一个替代方法。

首先像这样的NSURLConnectionDataDelegate对象

FailCertificateDelegate.h

@interface FailCertificateDelegate : NSObject <NSURLConnectionDataDelegate>
   @property(atomic,retain)NSCondition *downloaded;
   @property(nonatomic,retain)NSData *dataDownloaded;
   -(NSData *)getData;
@end

FailCertificateDelegate.m

#import "FailCertificateDelegate.h"

@implementation FailCertificateDelegate
@synthesize dataDownloaded,downloaded;
-(id)init{
    self = [super init];
    if (self){
        dataDownloaded=nil;
        downloaded=[[NSCondition alloc] init];   
    }
    return self;
}


- (BOOL)connection:(NSURLConnection *)connection canAuthenticateAgainstProtectionSpace:    (NSURLProtectionSpace *)protectionSpace {
    NSLog(@"canAuthenticateAgainstProtectionSpace:");
    return [protectionSpace.authenticationMethod         isEqualToString:NSURLAuthenticationMethodServerTrust];
}


- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:    (NSURLAuthenticationChallenge *)challenge {
     NSLog(@"didReceiveAuthenticationChallenge:");
    [challenge.sender useCredential:[NSURLCredential     credentialForTrust:challenge.protectionSpace.serverTrust]     forAuthenticationChallenge:challenge];
}


- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
    [downloaded signal]; 
    [downloaded unlock];
    self.hasFinnishLoading = YES; 
} 
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data{
    [dataDownloaded appendData:data];
    [downloaded lock]; 
} 

-(NSData *)getData{
    if (!self.hasFinnishLoading){
        [downloaded lock]; 
        [downloaded wait]; 
        [downloaded unlock]; 
    } 

    return dataDownloaded; 
}

@end

为了使用它

FailCertificateDelegate *fcd=[[FailCertificateDelegate alloc] init];
NSURLConnection *c=[[NSURLConnection alloc] initWithRequest:request delegate:fcd startImmediately:NO];
[c setDelegateQueue:[[NSOperationQueue alloc] init]];
[c start];    
NSData *d=[fcd getData];

现在您将拥有异步使用 nsurlconnection 的所有好处和简单同步连接的好处，线程将被阻塞，直到您在委托(delegate)上下载所有数据，但您可以改进它，在 FailCertificateDelegate 类上添加一些错误控制

编辑:修复大数据。基于 Nikolay DS 评论。非常感谢