JSPatch部署JS代码控制OC代码

    //这里是bmob的key自己去申请个账号，创建一个应用就有了
    [Bmob registerWithAppKey:@"这里填写自己的key"];
    BmobQuery   *bquery = [BmobQuery queryWithClassName:@"JSPathString"];
    //约束,只取版本号为1的
    [bquery whereKey:@"version" equalTo:@"1"]; //是1得就取得
    [bquery findObjectsInBackgroundWithBlock:^(NSArray *array, NSError *error) {
        //删除操作，如果。。。。删除文件。。。。
        if (!error) {
            if (array.count > 0) {
                BmobObject *object = array[0];
                NSString *PrivateMD5String = [object objectForKey:@"PrivkeyMD5String"];
                BmobFile *file = (BmobFile*)[object objectForKey:@"JSData"];
                NSArray *path = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
                //取得第一个Documents文件夹的路径
                NSString *filePath = [path objectAtIndex:0];
                //                NSLog(@"%@",filePath);
                [self downloadFileURL:file.url savePath:filePath fileName:file.name tag:0 PrivateMD5String:PrivateMD5String];

            }
        }else {
            NSLog(@"失败的情况。。。");
        }
    }];

/**
 * 下载文件,这是用的，网络请求，要换，现在都是af3.0了
 */
+ (void)downloadFileURL:(NSString *)aUrl savePath:(NSString *)aSavePath fileName:(NSString *)aFileName tag:(NSInteger)aTag PrivateMD5String:(NSString *)PrivateMD5String
{
    NSFileManager *fileManager = [NSFileManager defaultManager];
    
    //检查本地文件是否已存在
    NSString *fileName = [NSString stringWithFormat:@"%@/%@", aSavePath, aFileName];
    
    //检查附件是否存在
    if ([fileManager fileExistsAtPath:fileName]) {
        //        NSLog(@"本地已经存在");
        [self doJSPathWith:PrivateMD5String fileName:fileName];
        
    }else{
        //创建附件存储目录
        if (![fileManager fileExistsAtPath:aSavePath]) {
            [fileManager createDirectoryAtPath:aSavePath withIntermediateDirectories:YES attributes:nil error:nil];
        }
        
        //下载附件
        NSURL *url = [[NSURL alloc] initWithString:aUrl];
        NSURLRequest *request = [NSURLRequest requestWithURL:url];
        
        AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
        operation.inputStream   = [NSInputStream inputStreamWithURL:url];
        operation.outputStream  = [NSOutputStream outputStreamToFileAtPath:fileName append:NO];
        
        //下载进度控制
        
        [operation setDownloadProgressBlock:^(NSUInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead) {
            NSLog(@"is download：%f", (float)totalBytesRead/totalBytesExpectedToRead);
        }];
        
        //已经完成下载
        [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation * operation, id responseObject) {
            //下载的数据
            NSLog(@"下载成功");
            [self doJSPathWith:PrivateMD5String fileName:fileName];
        } failure:^(AFHTTPRequestOperation * operation, NSError * error) {
            NSLog(@"下载失败");
        }];
        [operation start];
    }
}

+ (void)doJSPathWith:(NSString *)PrivateMD5String fileName:(NSString *)fileName{
#pragma mark - 客户端操作，可以等待服务器，等待时间可以10‘s左右,网络请求后得到数据，然后还可以加一个开关按钮，可决定是否传这个js文件，以免出现BUG
    //公钥
    NSString *pubkey = @"MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDCiw8lUn/RkpTFrIsC49i9ETR1\nRZuc265x7emOYgSLF4E2LkvxZk0klIC74MBDABhyN+TFQ2J9FkJX8XkzQkrnTv/G\nh0td+U+0D84tK81NJzBa1+pPXE55JjarwNLzf1VEfUBUWMoGKTVQV05sC0JjsYyX\nm6mbFq8j9v7ygO/FQQIDAQAB";
    
    //服务器返回的RSA私钥加密的字符串字符串
    NSString *fuwuqiMD5String = PrivateMD5String;
    //服务器返回的JS字符串
    NSString *script = [NSString stringWithContentsOfFile:fileName encoding:NSUTF8StringEncoding error:nil];;
    
    //公钥解密得到解密后的MD5字符串
    NSString *decWithPrivKey = [RSA decryptString:fuwuqiMD5String publicKey:pubkey];
    [JPEngine startEngine];
    if ([[self md5:script] isEqualToString:decWithPrivKey]) {
        //        NSLog(@"匹配成功");
        [JPEngine evaluateScript:script];
    }else {
        //        NSLog(@"匹配失败");
    }
}

//md5加密
+ (NSString *)md5:(NSString *)input {
    const char* str = [input UTF8String];
    unsigned char result[CC_MD5_DIGEST_LENGTH];
    CC_MD5(str, (unsigned)strlen((const char *)str), result);
    NSMutableString *ret = [NSMutableString string];
    for(int i = 0; i<16; i++) {
        [ret appendFormat:@"%02X",result[i]];
    }
    return ret;
}