UIWebView实现https双向认证请求
编程技术 / houtizong 发布于 3年前 100
什么是HTTPS双向认证我已在先前的博文 ASIHTTPRequest实现https双向认证请求
中有讲述，不理解的读者可以先复习一下。本文是用UIWebView来实现对需要客户端证书验证的服务请求，网上有些文章中有涉及到此内容，但都只言片语，没有讲完全，更没有完整的代码，让人困扰不已。但是此知识点其实还是比较重要并且是有一定难度的，在安全性要求比较高的场合比如银行APP中应该比较常用，当然你也可以用在你自己的项目中，为您的应用增加安全保护。
废话我就少说点了，来看看关键代码吧。
@interface RootViewController : UIViewController<UIWebViewDelegate,NSURLConnectionDelegate>{ UIWebView *webView; UIActivityIndicatorView *activityIndicatorView; //当前的url NSURL *_currenURL; NSURLConnection* reUrlConnection;//重发请求 NSURLRequest* originRequest;}@property(nonatomic,assign,getter =isAuthed)BOOL authed;@property(nonatomic,strong)NSURL *currenURL;@end
以上代码是UIWebView的视图控制器的声明代码，实现以下两个代理UIWebViewDelegate,NSURLConnectionDelegate
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{ NSString *url=[[request URL]absoluteString]; if ([url hasPrefix:@"protocol://"]) { UIAlertView* alert=[[UIAlertView alloc]initWithTitle:@"Called by JavaScript" message:@"You've called iPhone provided control from javascript!!" delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:nil]; [alert show]; return NO; } NSString* scheme = [[request URL] scheme]; NSLog(@"scheme = %@",scheme); //判断是不是https if ([scheme isEqualToString:@"https"]) { //如果是https:的话，那么就用NSURLConnection来重发请求。从而在请求的过程当中吧要请求的URL做信任处理。 if (!self.isAuthed) { originRequest = request; NSURLConnection* conn = [[NSURLConnection alloc] initWithRequest:request delegate:self]; [conn start]; [webView stopLoading]; return NO; } } return YES;} 以上代码重载了UIWebViewDelegate中的shouldStartLoadWithRequest 方法。
- (void)connection: (NSURLConnection *)connection willSendRequestForAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge{ if ([challenge previousFailureCount]== 0) { _authed = YES; NSString *path = [[NSBundle mainBundle]pathForResource:@"wenfeng.xu" ofType:@"pfx"]; NSData *p12data = [NSData dataWithContentsOfFile:path]; CFDataRef inP12data = (__bridge CFDataRef)p12data; SecIdentityRef myIdentity; SecTrustRef myTrust; extractIdentityAndTrust(inP12data, &myIdentity, &myTrust); long count = SecTrustGetCertificateCount(myTrust); NSMutableArray* myCertificates = nil; if(count > 1) { myCertificates = [NSMutableArray arrayWithCapacity:count]; for(int i = 1; i < count; ++i) { [myCertificates addObject:(__bridge id)SecTrustGetCertificateAtIndex(myTrust, i)]; } } NSURLCredential *credential = [NSURLCredential credentialWithIdentity:myIdentity certificates:nil persistence:NSURLCredentialPersistenceNone]; assert(credential != nil); NSLog(@"User: %@, certificates %@ identity:%@", [credential user], [credential certificates], [credential identity]); [[challenge sender] useCredential:credential forAuthenticationChallenge:challenge]; }else{ [challenge.sender cancelAuthenticationChallenge:challenge]; }}
NSString *path = [[NSBundle mainBundle]pathForResource:@"wenfeng.xu" ofType:@"pfx"];
以上代码声明客户端证书的类型与名称
OSStatus extractIdentityAndTrust(CFDataRef inP12data, SecIdentityRef *identity, SecTrustRef *trust){ OSStatus securityError = errSecSuccess; CFStringRef password = CFSTR("p@ssw0rd888"); const void *keys[] = { kSecImportExportPassphrase }; const void *values[] = { password }; CFDictionaryRef options = CFDictionaryCreate(NULL, keys, values, 1, NULL, NULL); CFArrayRef items = CFArrayCreate(NULL, 0, 0, NULL); securityError = SecPKCS12Import(inP12data, options, &items); if (securityError == 0) { CFDictionaryRef myIdentityAndTrust = CFArrayGetValueAtIndex(items, 0); const void *tempIdentity = NULL; tempIdentity = CFDictionaryGetValue(myIdentityAndTrust, kSecImportItemIdentity); *identity = (SecIdentityRef)tempIdentity; const void *tempTrust = NULL; tempTrust = CFDictionaryGetValue(myIdentityAndTrust, kSecImportItemTrust); *trust = (SecTrustRef)tempTrust; CFIndex count = CFArrayGetCount(items); NSLog(@"Certificates found: %ld",count); } if (options) { CFRelease(options); } return securityError;} 以上代码实现请求前公钥与私钥的提取
CFStringRef password = CFSTR("p@ssw0rd888"); 以上代码声明证书的访问密码
完整的代码已在附件中，支持自签名的服务器证书，有任何问题请联系qq 359709421 如果您觉得我的文章对您有帮助，有劳参观并收藏我的网店，谢谢。 http://mrs-x.taobao.com/
上一篇：说说自信
请勿发布不友善或者负能量的内容。与人为善，比聪明更重要！
技术博客集 - 网站简介：
前后端技术：
后端基于Hyperf2.1框架开发,前端使用Bootstrap可视化布局系统生成
网站主要作用：
1.编程技术分享及讨论交流，内置聊天系统;
2.测试交流框架问题，比如：Hyperf、Laravel、TP、beego;
3.本站数据是基于大数据采集等爬虫技术为基础助力分享知识，如有侵权请发邮件到站长邮箱，站长会尽快处理;
4.站长邮箱：[email protected];
文章归档
文章标签
友情链接
