SDWebImage 加载Https自签名证书时的图片问题

你是否遇到了这种情况，好不容易把自签名HTTPS证书配置好了，访问https接口也成功了，但是图片加载不出来？

传了SDWebImageAllowInvalidSSLCertificates 还是没效果没效果（这种情况只适用于CA我觉得），

并且一直 HTTP load failed (error code: -999 [1:89])，

经过不懈努力，终于找到了在不修改SDWebimageDownloader.m源码的情况下的解决方案；

通过创建SDWebimageDownloader的分类来实现，如下：

.h 文件

1 #import "SDWebImageDownloader.h"

@interface SDWebImageDownloader (AFNHttps)

@end

#import <SDWebImageDownloader.h>
#import "SDWebImageDownloader+AFNHttps.h"

@implementation SDWebImageDownloader (AFNHttps)

+ (void)load {
　　　　 //设置SDWebImageDownloader的证书
    [SDWebImageDownloader sharedDownloader].urlCredential = [self myUrlCredential];
}

+ (NSURLCredential *)myUrlCredential {
    
    NSString *thePath = [[NSBundle mainBundle] pathForResource:@"p12证书名" ofType:@"p12"];
    //倒入证书       NSLog(@"thePath===========%@",thePath);
    NSData *PKCS12Data = [[NSData alloc] initWithContentsOfFile:thePath];
    CFDataRef inPKCS12Data = (__bridge CFDataRef)PKCS12Data;
    
    SecIdentityRef identity = NULL;
    // extract the ideneity from the certificate
    [self mosM_extractIdentity:inPKCS12Data toIdentity:&identity];
    
    SecCertificateRef certificate = NULL;
    SecIdentityCopyCertificate (identity, &certificate);
    
    return [NSURLCredential credentialWithIdentity:identity certificates:nil persistence:NSURLCredentialPersistencePermanent];;
}


+ (OSStatus)extractIdentity:(CFDataRef)inP12Data toIdentity:(SecIdentityRef*)identity {
    OSStatus securityError = errSecSuccess;
    CFStringRef password = CFSTR("p12证书密码");
    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 ident = CFArrayGetValueAtIndex(items,0);
        const void *tempIdentity = NULL;
        tempIdentity = CFDictionaryGetValue(ident, kSecImportItemIdentity);
        *identity = (SecIdentityRef)tempIdentity;
    }
    if (options) {
        CFRelease(options);
    }
    return securityError;
}