YYXC_School/LN_School/NetManager.m

//
//  NetManager.m
//  LN_School
//
//  Created by apple on 2017/4/6.
//  Copyright © 2017年 Danson. All rights reserved.
//

#import "NetManager.h"
#import "AFNetworking.h"
#import "DES3Util.h"

//网络是否可以连接
#import <SystemConfiguration/SystemConfiguration.h>
#import <netdb.h>


@implementation NetManager

//判断网络是否连接
+ (BOOL) connectedToNetWork
{
    return YES;//2017/10/9 临时处理
//    @try {
//        //创建零地址，0.0.0.0的地址表示查询本机的网络连接状态
//        struct sockaddr_in zeroAddress;
//        bzero(&zeroAddress, sizeof(zeroAddress));
//        zeroAddress.sin_len = sizeof(zeroAddress);
//        zeroAddress.sin_family = AF_INET;
//
//        /**
//         * SCNetworkReachabilityRef: 用来保存创建测试连接返回的引用
//         *
//         * SCNetworkReachabilityCreateWithAddress: 根据传入的地址测试连接.
//         * 第一个参数可以为NULL或kCFAllocatorDefault
//         * 第二个参数为需要测试连接的IP地址，当为0.0.0.0时则可以查询本机的网络连接状态
//         * 同时返回一个引用必须在用完后释放
//         * PS: SCNetworkReachabilityCreateWithName: 这是个根据传入的网络测试连接，
//         * 第二个参数比如为“www.apple.com”，其他和上一个一样
//         *
//         * SCNetworkReachabilityGetFlags：这个函数用来获得测试连接的状态，
//         * 第一个参数为之前建立的测试连接的引用，
//         * 第二个参数用来保存获得的状态，
//         * 如果能获得状态则返回TRUE，否则返回FALSE。
//         *
//         */
//
//        SCNetworkReachabilityRef defaultRouteReachability = SCNetworkReachabilityCreateWithAddress(NULL, (struct sockaddr *)&zeroAddress);
//        SCNetworkReachabilityFlags flags;
//
//        BOOL didRetrieveFlags = SCNetworkReachabilityGetFlags(defaultRouteReachability, &flags);
//        CFRelease(defaultRouteReachability);
//
//        if (!didRetrieveFlags) {
//            printf("Error. Could not recover network reachability flags");
//            return NO;
//        }
//
//        /**
//         *  kSCNetworkReachabilityFlagsReachable: 能够连接网络
//         *  kSCNetworkReachabilityFlagsConnectionRequired: 能够连接网络，但是首先得建立连接过程
//         *  kSCNetworkReachabilityFlagsIsWWAN: 判断是否通过蜂窝网覆盖的连接，
//         *  比如EDGE，GPRS或者目前的3G.主要是区别通过WiFi的连接
//         */
//        BOOL isReachable = ((flags & kSCNetworkReachabilityFlagsReachable) != 0);
//        BOOL needsConnection = ((flags & kSCNetworkReachabilityFlagsConnectionRequired) != 0);
//
//        return (isReachable && !needsConnection) ? YES : NO;
//    }
//    @catch (NSException *exception) {
//        return NO;
//    }
}


//生成带有签名的URL
+ (NSString *)getURLWithDict:(NSDictionary *)dic urlPre:(NSString *)urlP
{
    
    //生成带有签名的URL
    NSString *httpUrl = defUser.defaultHttp;
    if (!isOfficial) {
        httpUrl = defaultHttp2;
    }
    
    NSString *urlDefault = defaultHttpUrl;
    
    if ([urlP isEqualToString:@"getLoginIps"]) {
        httpUrl = @"http://app.lnjppt.com/appservice/";//该接口调学员端服务
        urlDefault = defaultCommonUrl;
    }
    
//    //公共请求
//    NSArray *commonArray = @[@""];
//    if ([commonArray containsObject:urlP]) {
//        urlDefault = defaultCommonUrl;
//    }
    
    
    NSTimeInterval timeI = [[NSDate date] timeIntervalSince1970] * 1000;//获取时间戳 单位：s      *1000毫秒
    NSString *urlS = @"";
    if (dic == nil) {
        urlS = [NSString stringWithFormat:@"%@%@%@?ts=%@&user=ios&v=ln",httpUrl,urlDefault,urlP,[NSString stringWithFormat:@"%.0f",timeI]];
        if ([urlDefault isEqualToString:defaultCommonUrl]) {
            urlS = [urlS stringByReplacingOccurrencesOfString:@"tmsappservice" withString:@"appservice"];
        }
        
    }else{
        
        //添加key字段
        NSMutableString *contentString = [NSMutableString stringWithString:[self getSignStringWithDictionary:dic]];
        [contentString appendFormat:@"key=%@", [NSString stringWithFormat:@"%.0f",timeI]];
        //        NSString *strUrl1 = [contentString stringByReplacingOccurrencesOfString:@"  " withString:@""];
        //        //    NSString *strUrl2 = [strUrl1 stringByReplacingOccurrencesOfString:@"\t" withString:@""];
        //        NSString *strUrl3 = [strUrl1 stringByReplacingOccurrencesOfString:@"\n" withString:@""];
        
        urlS = [NSString stringWithFormat:@"%@%@%@?ts=%@&sign=%@&user=ios&v=ln",httpUrl,urlDefault,urlP,[NSString stringWithFormat:@"%.0f",timeI],[[contentString md5Encrypt] uppercaseString]];
    }
    return urlS;
}

+ (NSString *)getSignStringWithDictionary:(NSDictionary *)dic
{
    NSMutableString *contentString  =[NSMutableString string];
    NSDictionary* dict = [NSDictionary dictionaryWithDictionary:dic];
    NSArray *keys = [dict allKeys];
    //按字母顺序排序
    NSArray *sortedArray = [keys sortedArrayUsingComparator:^NSComparisonResult(id obj1, id obj2) {
        return [obj1 compare:obj2 options:NSNumericSearch];
    }];
    //拼接字符串
    for (NSString *categoryId in sortedArray) {
        if (![categoryId isEqualToString:@"sign"] && ![categoryId isEqualToString:@"timestamp"]){
            if([categoryId isEqualToString:@"biz_content"]){
                NSError *error = nil;
                NSDictionary* bizDict = [dict objectForKey:@"biz_content"];
                NSData *jsonData = [NSJSONSerialization dataWithJSONObject:bizDict options:NSJSONWritingPrettyPrinted error: &error];
                NSMutableData *tempJsonData = [NSMutableData dataWithData:jsonData];
                NSString* jsonString1 = [[NSString alloc] initWithData:tempJsonData encoding:NSUTF8StringEncoding];
                NSString *jsonString2 = [jsonString1 stringByReplacingOccurrencesOfString:@" : " withString:@":"];
                [contentString appendFormat:@"biz_content=%@&",jsonString2];
            }else{
                [contentString appendFormat:@"%@=%@&", categoryId, [dict valueForKey:categoryId]];
            }
        }
    }
    
    return contentString;
}

+ (void)requestAnythingWithURL:(NSString *)urlString dictionary:(NSDictionary *)aDictionary dataArray:(NSArray *)dataArray completion:(MyBlockType)finishBlock
{
    if (dataArray) {//有媒体数据上传的请求
        
        NSString *httpUrl = isOfficial == YES ? defUser.defaultHttp : defaultHttp2;
        NSString *defaultUpload = defaultUploadUrl;
        NSString *urlS = [NSString stringWithFormat:@"%@%@%@",httpUrl,defaultUpload,urlString];
        [urlS stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
        
        AFHTTPSessionManager *afSessionManager = [AFHTTPSessionManager manager];
        afSessionManager.requestSerializer  = [AFHTTPRequestSerializer serializer];
        afSessionManager.responseSerializer = [AFHTTPResponseSerializer serializer];
        afSessionManager.responseSerializer.acceptableContentTypes = [afSessionManager.responseSerializer.acceptableContentTypes setByAddingObject:@"text/html"];
        afSessionManager.requestSerializer.timeoutInterval = 25;
        
        [afSessionManager POST:urlS parameters:nil headers:nil constructingBodyWithBlock:^(id<AFMultipartFormData>  _Nonnull formData) {
            
            int k = 0;
            for (NSData *uplownData in dataArray) {
                NSString *typeString = [Tools typeForImageData:uplownData];
                NSString *fileType = [NSString stringWithFormat:@"image.%@",typeString];
                NSString *mimeType = [NSString stringWithFormat:@"image/%@",typeString];
                
                k ++;
                [formData appendPartWithFileData:uplownData
                                            name:[NSString stringWithFormat:@"photo%d",k]
                                        fileName:fileType
                                        mimeType:mimeType];
            }
        } progress:^(NSProgress * _Nonnull uploadProgress) {
            
            //NSLog(@"uploadProgress----><>%@-----><>%@",urlS,uploadProgress);
            
        } success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
            
            //如果返回空的data 返回失败好了
            if (responseObject == nil) {
                NSDictionary *dic = nil;
                finishBlock(dic);
                return;
            }
            
            NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:responseObject
                                                                options:NSJSONReadingMutableContainers
                                                                  error:nil];
            
            //NSLog(@"上传图片-----><>%@----><>%@",urlS,dic);
            finishBlock(dic);
        } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
            
            //失败的时候 要把失败的事情传输回去
            NSDictionary *dic = nil;
            finishBlock(dic);
        }];
    }else{
        
        NSString *urlS = [NetManager getURLWithDict:aDictionary urlPre:urlString];
        
         NSLog(@"POST请求-------><>%@ \n-------><>%@ \n----",urlS,aDictionary);
        //设置请求管理器
        AFHTTPSessionManager *afSessionManager = [AFHTTPSessionManager manager];
        afSessionManager.requestSerializer  = [AFJSONRequestSerializer serializer];
        afSessionManager.responseSerializer = [AFHTTPResponseSerializer serializer];
        afSessionManager.requestSerializer.timeoutInterval = 15;
        
        [afSessionManager POST:urlS parameters:aDictionary headers:nil progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
            //请求成功
            //如果返回空的data 返回失败好了
            if (responseObject == nil) {
                NSDictionary *dic = nil;
                finishBlock(dic);
                return;
            }


            NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:responseObject
                                                                options:NSJSONReadingMutableContainers
                                                                  error:nil];
            
            NSLog(@"POST请求成功-------><>%@\n-------><>%@",urlS,dic);
            
            
            for (NSString *akey in dic.allKeys) {
                id obj = dic[akey];
                if ([obj isEqual:[NSNull null]]) {
                    [dic setValue:@"" forKey:akey];
                }
            }
            
            
            finishBlock(dic);
            
        } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
            //失败的时候 要把失败的事情传输回去
            NSLog(@"POST请求失败-------><>%@ \n-------><>%@ \n-------><>%@",urlS,aDictionary,error);
            NSDictionary *dic = nil;
            finishBlock(dic);
        }];
    }
}



+ (void)requestGetAnythingWithURL:(NSString *)urlString completion:(MyBlockType)finishBlock
{
    //生成请求加密后的url
    NSString *urlS = [NetManager getURLWithDict:nil urlPre:urlString];
    
    //设置请求管理器
    AFHTTPSessionManager *afSessionManager = [AFHTTPSessionManager manager];
    afSessionManager.requestSerializer  = [AFJSONRequestSerializer serializer];
    afSessionManager.responseSerializer = [AFHTTPResponseSerializer serializer];
    
    [afSessionManager GET:urlS parameters:nil headers:nil progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id  _Nullable responseObject) {
        
        //如果返回空的data 返回失败好了
        if (responseObject == nil) {
            NSDictionary *dic = nil;
            finishBlock(dic);
            return;
        }
        
        NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:responseObject
                                                            options:NSJSONReadingMutableContainers
                                                              error:nil];
//        NSLog(@"GET请求成功-------><>%@ \n-------><>%@",urlS,dic);
        finishBlock(dic);
    } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
//        NSLog(@"GET请求失败-------><>%@",urlS);
        //失败的时候 要把失败的事情传输回去 @{@"code":@"1",@"body":@"请求失败"}
        NSDictionary *dic = nil;
        finishBlock(dic);
    }];
}


@end