br_pay/
wechat.rs

1use std::collections::HashMap;
2use crate::{PayMode, PayNotify, RefundNotify, RefundStatus, TradeState, TradeType, Types};
3use base64::engine::general_purpose::STANDARD;
4use base64::{Engine};
5use json::{object, JsonValue};
6use aes_gcm::{Aes256Gcm, Key, KeyInit, Nonce};
7use aes_gcm::aead::{Aead, Payload};
8use br_reqwest::Method;
9
10
11#[derive(Clone, Debug)]
12pub struct Wechat {
13    /// 服务商APPID
14    pub appid: String,
15    /// 服务商户号
16    pub sp_mchid: String,
17    /// 证书号
18    pub serial_no: String,
19    /// API证书私钥
20    pub app_private: String,
21    /// APIv3密钥
22    pub apikey: String,
23    /// APIv2密钥
24    pub apiv2: String,
25    pub notify_url: String,
26
27}
28
29use chrono::{DateTime, Local, Utc};
30use log::error;
31use openssl::hash::MessageDigest;
32use openssl::pkey::{PKey};
33use openssl::rsa::Rsa;
34use openssl::sign::Signer;
35use rand::distr::Alphanumeric;
36use rand::{rng, Rng};
37
38impl Wechat {
39    pub fn http(&mut self, url: &str, method: Method, body: JsonValue) -> Result<JsonValue, String> {
40        let sign = self.sign(method.to_str().to_uppercase().as_str(), url, body.to_string().as_str())?;
41        let mut http = br_reqwest::Client::new();
42        let url = format!("https://api.mch.weixin.qq.com{url}");
43        let send = match method {
44            Method::GET => http.get(url.as_str()),
45            Method::POST => http.post(url.as_str()).raw_json(body),
46            _ => http.post(url.as_str()),
47        };
48        match send.header("Accept", "application/json").header("User-Agent", "api").header("Content-Type", "application/json").header("Authorization", sign.as_str()).send()?.json() {
49            Ok(e) => Ok(e),
50            Err(e) => Err(e)
51        }
52    }
53
54    pub fn sign_v2(&mut self, body: JsonValue) -> Result<String, String> {
55        let mut map = HashMap::new();
56        for (key, value) in body.entries() {
57            if key == "sign" {
58                continue;
59            }
60            if value.is_empty() {
61                continue;
62            }
63            map.insert(key, value);
64        }
65        let mut keys: Vec<_> = map.keys().cloned().collect();
66        keys.sort();
67        let mut txt = vec![];
68        for key in keys {
69            txt.push(format!("{}={}", key, map.get(&key).unwrap()));
70        }
71        let txt = txt.join("&");
72        let string_sign_temp = format!("{}&key={}", txt, self.apiv2);
73
74        let sign = br_crypto::md5::encrypt_hex(string_sign_temp.as_bytes()).to_uppercase();
75        Ok(sign)
76    }
77
78    pub fn sign(&mut self, method: &str, url: &str, body: &str) -> Result<String, String> {
79        let timestamp = Utc::now().timestamp(); // 秒级时间戳
80        let random_string: String = rng().sample_iter(&Alphanumeric) // 生成随机字母+数字
81                                         .take(10) // 指定长度
82                                         .map(char::from).collect();
83
84        let sign_txt = format!("{method}\n{url}\n{timestamp}\n{random_string}\n{body}\n");
85        if self.app_private.contains("-----BEGIN PRIVATE KEY-----") {
86            self.app_private = self.app_private.replace("-----BEGIN PRIVATE KEY-----", "");
87            self.app_private = self.app_private.replace("-----END PRIVATE KEY-----", "");
88            self.app_private = self.app_private.replace(" ", "");
89            self.app_private = self.app_private.replace("\n", "");
90            self.app_private = self.app_private.trim().to_string();
91        }
92        let mut formatted = String::from("-----BEGIN PRIVATE KEY-----\n");
93        for chunk in self.app_private.as_bytes().chunks(64) {
94            formatted.push_str(&String::from_utf8_lossy(chunk));
95            formatted.push('\n');
96        }
97        formatted.push_str("-----END PRIVATE KEY-----\n");
98        self.app_private = formatted;
99
100        // 加载 RSA 私钥
101        let rsa = match Rsa::private_key_from_pem(self.app_private.as_bytes()) {
102            Ok(e) => e,
103            Err(e) => {
104                return Err(format!("加载RSA私钥失败: {e}"));
105            }
106        };
107        let pkey = match PKey::from_rsa(rsa) {
108            Ok(e) => e,
109            Err(e) => {
110                return Err(format!("Failed to create PKey: {e}"))
111            }
112        };
113        // 创建签名器
114        let mut signer = match Signer::new(MessageDigest::sha256(), &pkey) {
115            Ok(e) => e,
116            Err(e) => {
117                return Err(format!("Failed to create signer:{e}"));
118            }
119        };
120        // 输入待签名数据
121        match signer.update(sign_txt.as_bytes()) {
122            Ok(_) => {}
123            Err(e) => {
124                return Err(e.to_string())
125            }
126        };
127        // 生成签名
128        let signature = match signer.sign_to_vec() {
129            Ok(e) => e,
130            Err(e) => {
131                return Err(format!("Failed to sign: {e}"));
132            }
133        };
134        let signature_b64 = STANDARD.encode(signature);
135        let sign = format!(
136            r#"WECHATPAY2-SHA256-RSA2048 mchid="{}",nonce_str="{random_string}",signature="{signature_b64}",timestamp="{timestamp}",serial_no="{}""#,
137            self.sp_mchid.as_str(),
138            self.serial_no
139        );
140        Ok(sign)
141    }
142
143    pub fn paysign(&mut self, prepay_id: &str) -> Result<JsonValue, String> {
144        let timestamp = Utc::now().timestamp(); // 秒级时间戳
145        let random_string: String = rng().sample_iter(&Alphanumeric) // 生成随机字母+数字
146                                         .take(10) // 指定长度
147                                         .map(char::from).collect();
148
149        let sign_txt = format!(
150            "{}\n{timestamp}\n{random_string}\n{prepay_id}\n",
151            self.appid
152        );
153
154        // 加载 RSA 私钥
155        let rsa = match Rsa::private_key_from_pem(self.app_private.as_bytes()) {
156            Ok(e) => e,
157            Err(e) => {
158                return Err(e.to_string())
159            }
160        };
161        let pkey = match PKey::from_rsa(rsa) {
162            Ok(e) => e,
163            Err(e) => {
164                return Err(format!("Failed to create PKey: {e}"))
165            }
166        };
167        // 创建签名器
168        let mut signer = match Signer::new(MessageDigest::sha256(), &pkey) {
169            Ok(e) => e,
170            Err(e) => {
171                return Err(format!("Failed to create signer:{e}"));
172            }
173        };
174        // 输入待签名数据
175        match signer.update(sign_txt.as_bytes()) {
176            Ok(_) => {}
177            Err(e) => {
178                return Err(e.to_string())
179            }
180        };
181        // 生成签名
182        let signature = match signer.sign_to_vec() {
183            Ok(e) => e,
184            Err(e) => {
185                return Err(format!("Failed to sign: {e}"));
186            }
187        };
188        let signature_b64 = STANDARD.encode(signature);
189        let sign = signature_b64;
190        Ok(object! {
191            timeStamp:timestamp,
192            nonceStr:random_string,
193            package:prepay_id,
194            signType:"RSA",
195            paySign:sign
196        })
197    }
198}
199impl PayMode for Wechat {
200    fn check(&mut self) -> Result<bool, String> {
201        let timestamp = Utc::now().timestamp(); // 获取微秒级时间戳
202        let now = Local::now();
203        let formatted = now.format("%Y%m%d").to_string();
204        let order_no = format!("test_{formatted}_{timestamp}");
205        match self.clone().pay("", Types::MiniJsapi, self.sp_mchid.as_str(), order_no.as_str(), "测试", 0.01, "") {
206            Ok(_) => Ok(true),
207            Err(e) => {
208                if e.contains("受理机构发起支付时, 子商户mchid不能与自身mchid相同") {
209                    return Ok(true);
210                }
211                Ok(false)
212            }
213        }
214    }
215
216    fn get_sub_mchid(&mut self, sub_mchid: &str) -> Result<JsonValue, String> {
217        let url = format!("/v3/apply4sub/sub_merchants/{sub_mchid}/settlement");
218        let res = self.http(url.as_str(), Method::GET, "".into())?;
219        if res.has_key("verify_result") && res["verify_result"] == "VERIFY_SUCCESS" {
220            return Ok(true.into());
221        }
222        Err(res.to_string())
223    }
224
225    fn notify(&mut self, _data: JsonValue) -> Result<JsonValue, String> {
226        todo!()
227    }
228
229    fn config(&mut self) -> JsonValue {
230        todo!()
231    }
232
233
234    fn auth(&mut self, _code: &str) -> Result<JsonValue, String> {
235        todo!()
236    }
237    fn pay(&mut self, _channel: &str, types: Types, sub_mchid: &str, out_trade_no: &str, description: &str, total_fee: f64, sp_openid: &str) -> Result<JsonValue, String> {
238        let url = match types {
239            Types::Jsapi => "/v3/pay/partner/transactions/jsapi",
240            Types::Native => "/v3/pay/partner/transactions/native",
241            Types::H5 => "/v3/pay/partner/transactions/h5",
242            Types::MiniJsapi => "/v3/pay/partner/transactions/jsapi",
243            Types::App => "/v3/pay/partner/transactions/app",
244            Types::Micropay => "/pay/micropay"
245        };
246        let total = format!("{:.0}", total_fee * 100.0);
247        let mut body = object! {
248            "sp_appid" => self.appid.clone(),
249            "sp_mchid"=> self.sp_mchid.clone(),
250            "sub_mchid"=> sub_mchid,
251            "description"=>description,
252            "out_trade_no"=>out_trade_no,
253            "notify_url"=>self.notify_url.clone(),
254            "support_fapiao"=>true,
255            "amount"=>object! {
256                total: total.parse::<i64>().unwrap(),
257                currency:"CNY"
258            }
259        };
260        match types {
261            Types::Native => {}
262            _ => {
263                body["payer"] = object! {
264                sp_openid:sp_openid
265            };
266            }
267        };
268        match self.http(url, Method::POST, body) {
269            Ok(e) => {
270                match types {
271                    Types::Native => {
272                        if e.has_key("code_url") {
273                            Ok(e["code_url"].clone())
274                        } else {
275                            Err(e["message"].to_string())
276                        }
277                    }
278                    Types::Jsapi | Types::MiniJsapi => {
279                        if e.has_key("prepay_id") {
280                            let signinfo = self.paysign(format!("prepay_id={}", e["prepay_id"]).as_str())?;
281                            Ok(signinfo)
282                        } else {
283                            Err(e["message"].to_string())
284                        }
285                    }
286                    _ => {
287                        Ok(e)
288                    }
289                }
290            }
291            Err(e) => Err(e),
292        }
293    }
294
295    fn micropay(&mut self, _channel: &str, auth_code: &str, sub_mchid: &str, out_trade_no: &str, description: &str, total_fee: f64, org_openid: &str, ip: &str) -> Result<JsonValue, String> {
296        let url = "/pay/micropay";
297        let total = format!("{:.0}", total_fee * 100.0);
298
299        let nonce_str: String = rand::rng().sample_iter(&Alphanumeric).take(32).map(char::from).collect();
300
301        let mut body = object! {
302            "appid": self.appid.clone(),
303            "mch_id"=> self.sp_mchid.clone(),
304            "sub_mch_id"=> sub_mchid,
305            "nonce_str"=>nonce_str,
306            "body"=> description,
307            "out_trade_no"=>out_trade_no,
308            "total_fee"=>total.parse::<i64>().unwrap(),
309            "fee_type":"CNY",
310            "spbill_create_ip":ip,
311            "device_info":org_openid,
312            "auth_code":auth_code
313        };
314        body["sign"] = self.sign_v2(body.clone())?.into();
315        let mut xml = vec!["<xml>".to_owned()];
316        for (key, value) in body.entries() {
317            let t = format!("<{}>{}</{00}>", key, value.clone().clone());
318            xml.push(t);
319        }
320        xml.push("</xml>".to_owned());
321        let xml = xml.join("");
322        let mut http = br_reqwest::Client::new();
323        match http.post(format!("https://api.mch.weixin.qq.com{url}").as_str()).header("Content-Type", "application/xml").raw_xml(xml.into()).send()?.xml() {
324            Ok(e) => Ok(e),
325            Err(e) => Err(e),
326        }
327    }
328
329    fn close(&mut self, out_trade_no: &str, sub_mchid: &str) -> Result<JsonValue, String> {
330        let url = format!("/v3/pay/partner/transactions/out-trade-no/{out_trade_no}/close");
331        let body = object! {
332            "sp_mchid"=> self.sp_mchid.clone(),
333            "sub_mchid"=> sub_mchid
334        };
335        match self.http(&url, Method::POST, body) {
336            Ok(_) => Ok(true.into()),
337            Err(e) => Err(e)
338        }
339    }
340
341    fn pay_query(&mut self, out_trade_no: &str, sub_mchid: &str) -> Result<JsonValue, String> {
342        let url = format!(
343            "/v3/pay/partner/transactions/out-trade-no/{}?sub_mchid={}&sp_mchid={}",
344            out_trade_no, sub_mchid, self.sp_mchid
345        );
346        match self.http(&url, Method::GET, "".into()) {
347            Ok(e) => {
348                if e.has_key("message") {
349                    return Err(e["message"].to_string());
350                }
351                let res = PayNotify {
352                    trade_type: TradeType::from(e["trade_type"].to_string().as_str()),
353                    out_trade_no: e["out_trade_no"].as_str().unwrap().to_string(),
354                    sp_mchid: e["sp_mchid"].as_str().unwrap().to_string(),
355                    sub_mchid: e["sub_mchid"].as_str().unwrap().to_string(),
356                    sp_appid: e["sp_appid"].as_str().unwrap().to_string(),
357                    transaction_id: e["transaction_id"].to_string(),
358                    success_time: PayNotify::success_time(e["success_time"].as_str().unwrap_or("")),
359                    sp_openid: e["payer"]["sp_openid"].to_string(),
360                    sub_openid: e["payer"]["sub_openid"].to_string(),
361                    total: e["amount"]["total"].as_f64().unwrap_or(0.0) / 100.0,
362                    currency: e["amount"]["currency"].to_string(),
363                    payer_total: e["amount"]["payer_total"].as_f64().unwrap_or(0.0) / 100.0,
364                    payer_currency: e["amount"]["payer_currency"].to_string(),
365                    trade_state: TradeState::from(e["trade_state"].as_str().unwrap()),
366                };
367                Ok(res.json())
368            }
369            Err(e) => Err(e),
370        }
371    }
372
373    fn pay_micropay_query(&mut self, out_trade_no: &str, sub_mchid: &str) -> Result<JsonValue, String> {
374        let nonce_str: String = rand::rng().sample_iter(&Alphanumeric).take(32).map(char::from).collect();
375        let mut body = object! {
376            "appid": self.appid.clone(),
377            "mch_id"=> self.sp_mchid.clone(),
378            "sub_mch_id"=> sub_mchid,
379            "nonce_str"=>nonce_str,
380            "out_trade_no"=>out_trade_no
381        };
382        body["sign"] = self.sign_v2(body.clone())?.into();
383        let mut xml = vec!["<xml>".to_owned()];
384        for (key, value) in body.entries() {
385            let t = format!("<{}>{}</{00}>", key, value.clone().clone());
386            xml.push(t);
387        }
388        xml.push("</xml>".to_owned());
389        let xml = xml.join("");
390        let mut http = br_reqwest::Client::new();
391        match http.post("https://api.mch.weixin.qq.com/pay/orderquery".to_string().as_str()).header("Content-Type", "application/xml").raw_xml(xml.into()).send()?.xml() {
392            Ok(e) => {
393                if e.has_key("result_code") && e["result_code"] != "SUCCESS" {
394                    error!("pay_micropay_query: {e:#}");
395                    return Err(e["return_msg"].to_string());
396                }
397
398                let res = PayNotify {
399                    trade_type: TradeType::from(e["trade_type"].to_string().as_str()),
400                    out_trade_no: e["out_trade_no"].as_str().unwrap().to_string(),
401                    sp_mchid: e["mch_id"].as_str().unwrap().to_string(),
402                    sub_mchid: e["sub_mch_id"].as_str().unwrap().to_string(),
403                    sp_appid: e["appid"].as_str().unwrap().to_string(),
404                    transaction_id: e["transaction_id"].to_string(),
405                    success_time: PayNotify::datetime_to_timestamp(e["time_end"].as_str().unwrap_or(""), "%Y%m%d%H%M%S"),
406                    sp_openid: e["device_info"].to_string(),
407                    sub_openid: e["openid"].to_string(),
408                    total: e["total_fee"].to_string().parse::<f64>().unwrap_or(0.0) / 100.0,
409                    currency: e["fee_type"].to_string(),
410                    payer_total: e["cash_fee"].to_string().parse::<f64>().unwrap_or(0.0) / 100.0,
411                    payer_currency: e["cash_fee_type"].to_string(),
412                    trade_state: TradeState::from(e["trade_state"].as_str().unwrap()),
413                };
414                Ok(res.json())
415            }
416            Err(e) => Err(e),
417        }
418    }
419    fn pay_notify(&mut self, nonce: &str, ciphertext: &str, associated_data: &str) -> Result<JsonValue, String> {
420        if self.apikey.is_empty() {
421            return Err("apikey 不能为空".to_string());
422        }
423        let key = Key::<Aes256Gcm>::from_slice(self.apikey.as_bytes());
424        let cipher = Aes256Gcm::new(key);
425        let nonce = Nonce::from_slice(nonce.as_bytes());
426        let data = match STANDARD.decode(ciphertext) {
427            Ok(e) => e,
428            Err(e) => return Err(format!("Invalid data received from API :{e}"))
429        };
430        // 组合 Payload（带 aad）
431        let payload = Payload {
432            msg: &data,
433            aad: associated_data.as_bytes(),
434        };
435
436        // 解密
437        let plaintext = match cipher.decrypt(nonce, payload) {
438            Ok(e) => e,
439            Err(e) => {
440                return Err(format!("解密 API:{e}"));
441            }
442        };
443        let rr = match String::from_utf8(plaintext) {
444            Ok(d) => d,
445            Err(_) => return Err("utf8 error".to_string())
446        };
447        let json = match json::parse(rr.as_str()) {
448            Ok(e) => e,
449            Err(_) => return Err("json error".to_string())
450        };
451        let res = PayNotify {
452            trade_type: TradeType::from(json["trade_type"].as_str().unwrap()),
453            out_trade_no: json["out_trade_no"].as_str().unwrap().to_string(),
454            sp_mchid: json["sp_mchid"].as_str().unwrap().to_string(),
455            sub_mchid: json["sub_mchid"].as_str().unwrap().to_string(),
456            sp_appid: json["sp_appid"].as_str().unwrap().to_string(),
457            transaction_id: json["transaction_id"].as_str().unwrap().to_string(),
458            success_time: PayNotify::success_time(json["success_time"].as_str().unwrap_or("")),
459            sp_openid: json["payer"]["sp_openid"].as_str().unwrap().to_string(),
460            sub_openid: json["payer"]["sub_openid"].as_str().unwrap().to_string(),
461            total: json["amount"]["total"].to_string().parse::<f64>().unwrap_or(0.0) / 100.0,
462            payer_total: json["amount"]["payer_total"].to_string().parse::<f64>().unwrap_or(0.0) / 100.0,
463            currency: json["amount"]["currency"].to_string(),
464            payer_currency: json["amount"]["payer_currency"].to_string(),
465            trade_state: TradeState::from(json["trade_state"].as_str().unwrap()),
466        };
467        Ok(res.json())
468    }
469
470    fn refund(
471        &mut self,
472        sub_mchid: &str,
473        out_trade_no: &str,
474        transaction_id: &str,
475        out_refund_no: &str,
476        amount: f64,
477        total: f64,
478        currency: &str,
479    ) -> Result<JsonValue, String> {
480        let url = "/v3/refund/domestic/refunds";
481
482        let refund = format!("{:.0}", amount * 100.0);
483        let total = format!("{:.0}", total * 100.0);
484
485        let body = object! {
486            "sub_mchid"=> sub_mchid,
487            "transaction_id"=>transaction_id,
488            "out_trade_no"=>out_trade_no,
489            "out_refund_no"=>out_refund_no,
490            "amount"=>object! {
491                refund: refund.parse::<i64>().unwrap(),
492                total: total.parse::<i64>().unwrap(),
493                currency:currency
494            }
495        };
496        match self.http(url, Method::POST, body) {
497            Ok(e) => {
498                if e.is_empty() {
499                    return Err("已执行".to_string());
500                }
501                if e.has_key("message") {
502                    return Err(e["message"].to_string());
503                }
504                let mut refund_time = 0.0;
505                if e.has_key("success_time") {
506                    let success_time = e["success_time"].as_str().unwrap_or("").to_string();
507                    if !success_time.is_empty() {
508                        let datetime = DateTime::parse_from_rfc3339(success_time.as_str()).unwrap();
509                        refund_time = datetime.timestamp() as f64;
510                    }
511                }
512
513                let status = match e["status"].as_str().unwrap() {
514                    "PROCESSING" => "退款中",
515                    "SUCCESS" => "已退款",
516                    _ => "无退款",
517                };
518                let info = object! {
519                    refund_id: e["refund_id"].clone(),
520                    user_received_account:e["user_received_account"].clone(),
521                    status:status,
522                    refund_time:refund_time,
523                    out_refund_no: e["out_refund_no"].clone(),
524                };
525                Ok(info)
526            }
527            Err(e) => Err(e)
528        }
529    }
530
531    fn micropay_refund(&mut self, sub_mchid: &str, out_trade_no: &str, transaction_id: &str, out_refund_no: &str, amount: f64, total: f64, currency: &str, refund_text: &str) -> Result<JsonValue, String> {
532        let refund = format!("{:.0}", amount * 100.0);
533        let total = format!("{:.0}", total * 100.0);
534
535
536        let nonce_str: String = rand::rng().sample_iter(&Alphanumeric).take(32).map(char::from).collect();
537        let mut body = object! {
538            "appid": self.appid.clone(),
539            "mch_id"=> self.sp_mchid.clone(),
540            "sub_mch_id"=> sub_mchid,
541            "nonce_str"=>nonce_str,
542            "out_trade_no"=>out_trade_no,
543            "transaction_id"=>transaction_id,
544            "out_refund_no"=>out_refund_no,
545            "total_fee"=>total,
546            "refund_fee"=>refund,
547            "refund_fee_type"=> currency,
548            "refund_desc"=>refund_text
549        };
550        body["sign"] = self.sign_v2(body.clone())?.into();
551        let mut xml = vec!["<xml>".to_owned()];
552        for (key, value) in body.entries() {
553            let t = format!("<{}>{}</{00}>", key, value.clone().clone());
554            xml.push(t);
555        }
556        xml.push("</xml>".to_owned());
557        let xml = xml.join("");
558        let mut http = br_reqwest::Client::new();
559        match http.post("https://api.mch.weixin.qq.com/secapi/pay/refund".to_string().as_str()).header("Content-Type", "application/xml").raw_xml(xml.into()).send()?.xml() {
560            Ok(e) => {
561                println!("{e:#}");
562                if e.is_empty() {
563                    return Err("已执行".to_string());
564                }
565                if e.has_key("message") {
566                    return Err(e["message"].to_string());
567                }
568                let mut refund_time = 0.0;
569                if e.has_key("success_time") {
570                    let success_time = e["success_time"].as_str().unwrap_or("").to_string();
571                    if !success_time.is_empty() {
572                        let datetime = DateTime::parse_from_rfc3339(success_time.as_str()).unwrap();
573                        refund_time = datetime.timestamp() as f64;
574                    }
575                }
576
577                let status = match e["status"].as_str().unwrap() {
578                    "PROCESSING" => "退款中",
579                    "SUCCESS" => "已退款",
580                    _ => "无退款",
581                };
582                let info = object! {
583                    refund_id: e["refund_id"].clone(),
584                    user_received_account:e["user_received_account"].clone(),
585                    status:status,
586                    refund_time:refund_time,
587                    out_refund_no: e["out_refund_no"].clone(),
588                };
589                Ok(info)
590            }
591            Err(e) => Err(e),
592        }
593    }
594
595    fn refund_notify(&mut self, nonce: &str, ciphertext: &str, associated_data: &str) -> Result<JsonValue, String> {
596        if self.apikey.is_empty() {
597            return Err("apikey 不能为空".to_string());
598        }
599        let key = Key::<Aes256Gcm>::from_slice(self.apikey.as_bytes());
600        let cipher = Aes256Gcm::new(key);
601        let nonce = Nonce::from_slice(nonce.as_bytes());
602        let data = match STANDARD.decode(ciphertext) {
603            Ok(e) => e,
604            Err(e) => return Err(format!("Invalid data received from API :{e}"))
605        };
606        // 组合 Payload（带 aad）
607        let payload = Payload {
608            msg: &data,
609            aad: associated_data.as_bytes(),
610        };
611
612        // 解密
613        let plaintext = match cipher.decrypt(nonce, payload) {
614            Ok(e) => e,
615            Err(e) => {
616                return Err(format!("解密 API:{e}"));
617            }
618        };
619        let rr = match String::from_utf8(plaintext) {
620            Ok(d) => d,
621            Err(_) => return Err("utf8 error".to_string())
622        };
623        let json = match json::parse(rr.as_str()) {
624            Ok(e) => e,
625            Err(_) => return Err("json error".to_string())
626        };
627        let res = RefundNotify {
628            out_trade_no: json["out_trade_no"].to_string(),
629            refund_no: json["out_refund_no"].to_string(),
630            refund_id: json["refund_id"].to_string(),
631            sp_mchid: json["sp_mchid"].as_str().unwrap().to_string(),
632            sub_mchid: json["sub_mchid"].as_str().unwrap().to_string(),
633            transaction_id: json["transaction_id"].as_str().unwrap().to_string(),
634            success_time: PayNotify::success_time(json["success_time"].as_str().unwrap_or("")),
635            total: json["amount"]["total"].as_f64().unwrap_or(0.0) / 100.0,
636            refund: json["amount"]["refund"].as_f64().unwrap_or(0.0) / 100.0,
637            payer_total: json["amount"]["payer_total"].as_f64().unwrap() / 100.0,
638            payer_refund: json["amount"]["payer_refund"].as_f64().unwrap() / 100.0,
639            status: RefundStatus::from(json["refund_status"].as_str().unwrap()),
640        };
641        Ok(res.json())
642    }
643
644    fn refund_query(&mut self, _trade_no: &str, out_refund_no: &str, sub_mchid: &str) -> Result<JsonValue, String> {
645        let url = format!("/v3/refund/domestic/refunds/{out_refund_no}?sub_mchid={sub_mchid}");
646        match self.http(&url, Method::GET, "".into()) {
647            Ok(e) => {
648                if e.is_empty() {
649                    return Err("已执行".to_string());
650                }
651                if e.has_key("message") {
652                    return Err(e["message"].to_string());
653                }
654
655
656                let res = RefundNotify {
657                    out_trade_no: e["out_trade_no"].to_string(),
658                    refund_no: e["out_refund_no"].to_string(),
659                    sp_mchid: "".to_string(),
660                    sub_mchid: sub_mchid.to_string(),
661                    transaction_id: e["transaction_id"].to_string(),
662                    refund_id: e["refund_id"].to_string(),
663                    success_time: PayNotify::success_time(e["success_time"].as_str().unwrap_or("")),
664                    total: e["amount"]["total"].to_string().parse::<f64>().unwrap(),
665                    payer_total: e["amount"]["total"].to_string().parse::<f64>().unwrap(),
666                    refund: e["amount"]["refund"].to_string().parse::<f64>().unwrap(),
667                    payer_refund: e["amount"]["refund"].to_string().parse::<f64>().unwrap(),
668                    status: RefundStatus::from(e["status"].as_str().unwrap()),
669                };
670
671                Ok(res.json())
672            }
673            Err(e) => Err(e),
674        }
675    }
676
677    fn incoming(&mut self, business_code: &str, contact_info: JsonValue, _subject_info: JsonValue, _business_info: JsonValue, _settlement_info: JsonValue, _bank_account_info: JsonValue) -> Result<JsonValue, String> {
678        let contact_info_data = object! {
679            // 超级管理员类型 LEGAL: 经营者/法人 SUPER: 经办人
680            contact_type:contact_info["contact_type"].clone(),
681            contact_name:contact_info["contact_name"].clone(),
682        };
683
684        let body = object! {
685            business_code:business_code,
686            contact_info:contact_info_data
687        };
688        println!("{body:#}");
689        match self.http("/v3/applyment4sub/applyment/", Method::POST, body) {
690            Ok(e) => {
691                println!("{e:#}");
692                if e.is_empty() {
693                    return Err("已执行".to_string());
694                }
695                if e.has_key("message") {
696                    return Err(e["message"].to_string());
697                }
698                Ok(e)
699            }
700            Err(e) => Err(e),
701        }
702    }
703}
br_pay/wechat.rs

br_pay/
wechat.rs
