230 lines
9.5 KiB
Objective-C
230 lines
9.5 KiB
Objective-C
//
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// FINExtensionHelper.m
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// finclip_custom_demo
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//
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// Created by Haley on 2020/12/3.
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//
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#import "FINExtensionHelper.h"
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#import <FinApplet/FinApplet.h>
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#import <WechatOpenSDK/WXApi.h>
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#import <CommonCrypto/CommonDigest.h>
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#import <CommonCrypto/CommonHMAC.h>
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@interface FINExtensionHelper () <WXApiDelegate>
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// 支付时，支付的回调是异步的，故这里将小程序的回调持有，在适当的时机调用（用户可根据自己的场景自行实现自己调用的逻辑）
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@property (nonatomic, copy) FATExtensionApiCallback callback;
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@end
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static FINExtensionHelper *instance = nil;
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@implementation FINExtensionHelper
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+ (instancetype)sharedHelper {
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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instance = [[FINExtensionHelper alloc] init];
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});
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return instance;
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}
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+ (instancetype)allocWithZone:(struct _NSZone *)zone {
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static dispatch_once_t onceToken;
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dispatch_once(&onceToken, ^{
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instance = [super allocWithZone:zone];
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});
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return instance;
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}
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- (id)copy {
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return instance;
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}
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// 注入自定义api
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- (void)registerCustomApis {
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[[FATClient sharedClient] registerExtensionApi:@"onNative" handler:^(FATAppletInfo *appletInfo, id param, FATExtensionApiCallback callback) {
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NSString *inputText = @"床前明月光，疑是地上霜。举头望明月，低头思故乡。";
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callback(FATExtensionCodeSuccess, @{@"text":inputText});
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}];
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[[FATClient sharedClient] fat_registerWebApi:@"user_define_native" handler:^(FATAppletInfo *appletInfo, id param, FATExtensionApiCallback callback) {
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NSString *inputText = @"鹅鹅鹅，曲项向天歌，白毛浮绿水，红掌拨清波。";
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callback(FATExtensionCodeSuccess, @{@"text":inputText});
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}];
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// 注入获取用户信息
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[[FATClient sharedClient] registerExtensionApi:@"getUserProfile" handler:^(FATAppletInfo *appletInfo, id param, FATExtensionApiCallback callback) {
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NSDictionary *userInfo = @{@"nickName":@"张三",@"avatarUrl":@"",@"gender":@1,@"country":@"中国",@"province":@"广东省",@"city":@"深圳",@"language":@"zh_CN"};
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NSDictionary *resDic = @{@"userInfo":userInfo};
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callback(FATExtensionCodeSuccess,resDic);
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}];
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// 注入登录方法
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[[FATClient sharedClient] registerExtensionApi:@"login" handler:^(FATAppletInfo *appletInfo, id param, FATExtensionApiCallback callback) {
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// 处理小程序登录逻辑后，调用小程序回调
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// 登录成功回调示例
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NSString *wxid = appletInfo.wechatLoginInfo[@"wechatOriginId"];
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NSString *path = appletInfo.wechatLoginInfo[@"profileUrl"];
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BOOL canWXLogin = [WXApi isWXAppInstalled] && [wxid length] > 0 && [path length] > 0;
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if (canWXLogin) {
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self.callback = callback;
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WXLaunchMiniProgramReq *req = [WXLaunchMiniProgramReq object];
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req.userName = wxid;
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req.path = path;
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req.miniProgramType = WXMiniProgramTypeRelease;
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[WXApi sendReq:req completion:^(BOOL success) {
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NSLog(@"打开微信:%d", success);
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}];
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}
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else {
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callback(FATExtensionCodeSuccess,@{@"desc":@"登录成功"});
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}
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}];
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// 注入微信支付方法
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__weak typeof(self) weakSelf = self;
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[[FATClient sharedClient] registerExtensionApi:@"requestPayment" handler:^(FATAppletInfo *appletInfo, id param, FATExtensionApiCallback callback) {
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// 支付有两种方式实现：
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// 1.利用app实现支付，结果通过回调通告小程序
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[weakSelf getTestPayment:callback];
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// 2.使用微信小程序实现支付
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// [weakSelf wechatMiniProgramPayment:appletInfo param:param callback:callback];
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}];
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}
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#pragma mark - WXPay
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// 模拟向服务请求支付订单
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- (void)getTestPayment:(FATExtensionApiCallback)callback {
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// 以下只是示例代码，演示自行实现的过程
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// 1.请求自己业务后台的订单信息
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// 2.调用app的微信支付功能支付
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// 3.返回支付结果给小程序
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NSString *urlString = @"https://finclip-testing.finogeeks.club/mop/wechat-auth/api/order";
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NSURL *url = [NSURL URLWithString:urlString];
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NSMutableURLRequest *requset = [NSMutableURLRequest requestWithURL:url];
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requset.HTTPMethod = @"POST";
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__weak typeof(self) weakSelf = self;
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NSURLSessionTask *task = [[NSURLSession sharedSession] dataTaskWithRequest:requset completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {
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NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse *)response;
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if (httpResponse.statusCode == 200) {
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NSString *appId = @"wx85663af68a0cbbc8";
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NSString *partnerId = @"1600932850";
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NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:nil];
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NSString *prepayId = dict[@"data"][@"prepay_id"];
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NSString *nonceStr = @"5K8264ILTKCH16CQ2502SI8ZNMTM67VS"; // 随机字符串，这里就不模拟了
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UInt32 timeStamp = [[NSDate date] timeIntervalSince1970];
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NSString *text = [NSString stringWithFormat:@"%@\n%ld\n%@\n%@\n", appId, (long)timeStamp, nonceStr, prepayId];
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NSString *sign = [weakSelf sha256:text];
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PayReq *request = [[PayReq alloc] init];
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request.partnerId = partnerId;
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request.prepayId = prepayId;
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request.package = @"Sign=WXPay";
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request.nonceStr = nonceStr;
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request.timeStamp = timeStamp;
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request.sign= sign;
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dispatch_async(dispatch_get_main_queue(), ^{
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[WXApi sendReq:request completion:^(BOOL success) {
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if (success) {
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weakSelf.callback = callback;
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} else {
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callback(FATExtensionCodeFailure, nil);
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}
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}];
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});
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return;
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}
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callback(FATExtensionCodeFailure, nil);
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}];
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[task resume];
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}
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- (void)wechatMiniProgramPayment:(FATAppletInfo *)appletInfo
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param:(NSDictionary *)param
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callback:(FATExtensionApiCallback)callback
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{
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NSDictionary *info = appletInfo.wechatLoginInfo;
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NSString *wxid = appletInfo.wechatLoginInfo[@"wechatOriginId"];
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NSString *path = appletInfo.wechatLoginInfo[@"paymentUrl"];
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if (wxid.length == 0 || path.length == 0) {
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callback(FATExtensionCodeFailure, @{@"desc":@"微信小程序关联信息异常"});
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return;
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}
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NSDictionary *dataDic = param;
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NSString *payString = [NSString stringWithFormat:@"?appId=%@&nonceStr=%@&package=%@&paySign=%@&signType=%@&timeStamp=%@&type=%@", dataDic[@"appId"], dataDic[@"nonceStr"], dataDic[@"package"], dataDic[@"paySign"], dataDic[@"signType"], dataDic[@"timeStamp"], dataDic[@"type"]];
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// 需要appDelegate 里注册微信开放SDK。
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WXLaunchMiniProgramReq *launchMiniProgramReq = [WXLaunchMiniProgramReq object];
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launchMiniProgramReq.userName = wxid;
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launchMiniProgramReq.path = [NSString stringWithFormat:@"%@%@", wxid, payString];
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if (appletInfo.appletVersionType == FATAppletVersionTypeRelease) {
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launchMiniProgramReq.miniProgramType = WXMiniProgramTypeRelease; //正式版
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} else if (appletInfo.appletVersionType == FATAppletVersionTypeTrial) {
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launchMiniProgramReq.miniProgramType = WXMiniProgramTypePreview; //体验版
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} else {
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launchMiniProgramReq.miniProgramType = WXMiniProgramTypeTest; //开发版
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}
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[WXApi sendReq:launchMiniProgramReq completion:^(BOOL success) {
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NSLog(@"打开微信:%d", success);
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if (success) {
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callback(FATExtensionCodeSuccess, @{@"desc":@"支付成功"});
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return;
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}
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callback(FATExtensionCodeFailure, @{@"desc":@"支付失败"});
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}];
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}
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// 签名加密（正常是放在后台处理，由上面的请求接口返回
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- (NSString *)sha256:(NSString *)shaStr {
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NSData *data = [shaStr dataUsingEncoding:NSUTF8StringEncoding];
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uint8_t digest[CC_SHA256_DIGEST_LENGTH];
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CC_SHA256(data.bytes, (CC_LONG)data.length, digest);
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NSData *adata = [[NSData alloc] initWithBytes:digest length:CC_SHA256_DIGEST_LENGTH];
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adata = [adata base64EncodedDataWithOptions:0];
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NSString *ret = [[NSString alloc] initWithData:adata encoding:NSUTF8StringEncoding];
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return ret;
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}
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#pragma mark - WXApiDelegate
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//发起支付请求回调
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- (void)onReq:(BaseReq *)req {
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}
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//微信结果回调
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- (void)onResp:(BaseResp *)resp {
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FATExtensionCode code = FATExtensionCodeSuccess;
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if (resp.errCode != WXSuccess) {
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code = FATExtensionCodeFailure;
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}
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if ([resp isKindOfClass:[PayResp class]]) {//支付
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self.callback(code, nil);
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}
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else if ([resp isKindOfClass:[WXLaunchMiniProgramResp class]]) {//打开小程序
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NSString *extMsg = ((WXLaunchMiniProgramResp *)resp).extMsg;
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if (extMsg.length <= 0) {
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self.callback(FATExtensionCodeFailure, nil);
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}
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else {
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self.callback(code, [self dictionaryWithJsonString:extMsg]);
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}
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}
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}
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- (NSDictionary *)dictionaryWithJsonString:(NSString *)jsonString {
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if (jsonString == nil) return nil;
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NSData *jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
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NSError *err;
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NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:&err];
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if(err) {
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NSLog(@"json解析失败：%@",err);
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return nil;
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}
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return dic;
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}
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@end
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