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 
226
227    fn config(&mut self) -> JsonValue {
228        todo!()
229    }
230
231
232    fn auth(&mut self, _code: &str) -> Result<JsonValue, String> {
233        todo!()
234    }
235    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> {
236        let url = match types {
237            Types::Jsapi => "/v3/pay/partner/transactions/jsapi",
238            Types::Native => "/v3/pay/partner/transactions/native",
239            Types::H5 => "/v3/pay/partner/transactions/h5",
240            Types::MiniJsapi => "/v3/pay/partner/transactions/jsapi",
241            Types::App => "/v3/pay/partner/transactions/app",
242            Types::Micropay => "/pay/micropay"
243        };
244        let total = format!("{:.0}", total_fee * 100.0);
245        let mut body = object! {
246            "sp_appid" => self.appid.clone(),
247            "sp_mchid"=> self.sp_mchid.clone(),
248            "sub_mchid"=> sub_mchid,
249            "description"=>description,
250            "out_trade_no"=>out_trade_no,
251            "notify_url"=>self.notify_url.clone(),
252            "support_fapiao"=>true,
253            "amount"=>object! {
254                total: total.parse::<i64>().unwrap(),
255                currency:"CNY"
256            }
257        };
258        match types {
259            Types::Native => {}
260            _ => {
261                body["payer"] = object! {
262                sp_openid:sp_openid
263            };
264            }
265        };
266        match self.http(url, Method::POST, body) {
267            Ok(e) => {
268                match types {
269                    Types::Native => {
270                        if e.has_key("code_url") {
271                            Ok(e["code_url"].clone())
272                        } else {
273                            Err(e["message"].to_string())
274                        }
275                    }
276                    Types::Jsapi | Types::MiniJsapi => {
277                        if e.has_key("prepay_id") {
278                            let signinfo = self.paysign(format!("prepay_id={}", e["prepay_id"]).as_str())?;
279                            Ok(signinfo)
280                        } else {
281                            Err(e["message"].to_string())
282                        }
283                    }
284                    _ => {
285                        Ok(e)
286                    }
287                }
288            }
289            Err(e) => Err(e),
290        }
291    }
292
293    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> {
294        let url = "/pay/micropay";
295        let total = format!("{:.0}", total_fee * 100.0);
296
297        let nonce_str: String = rand::rng().sample_iter(&Alphanumeric).take(32).map(char::from).collect();
298
299        let mut body = object! {
300            "appid": self.appid.clone(),
301            "mch_id"=> self.sp_mchid.clone(),
302            "sub_mch_id"=> sub_mchid,
303            "nonce_str"=>nonce_str,
304            "body"=> description,
305            "out_trade_no"=>out_trade_no,
306            "total_fee"=>total.parse::<i64>().unwrap(),
307            "fee_type":"CNY",
308            "spbill_create_ip":ip,
309            "device_info":org_openid,
310            "auth_code":auth_code
311        };
312        body["sign"] = self.sign_v2(body.clone())?.into();
313        let mut xml = vec!["<xml>".to_owned()];
314        for (key, value) in body.entries() {
315            let t = format!("<{}>{}</{00}>", key, value.clone().clone());
316            xml.push(t);
317        }
318        xml.push("</xml>".to_owned());
319        let xml = xml.join("");
320        let mut http = br_reqwest::Client::new();
321        match http.post(format!("https://api.mch.weixin.qq.com{url}").as_str()).header("Content-Type", "application/xml").raw_xml(xml.into()).send()?.xml() {
322            Ok(e) => Ok(e),
323            Err(e) => Err(e),
324        }
325    }
326
327    fn close(&mut self, out_trade_no: &str, sub_mchid: &str) -> Result<JsonValue, String> {
328        let url = format!("/v3/pay/partner/transactions/out-trade-no/{out_trade_no}/close");
329        let body = object! {
330            "sp_mchid"=> self.sp_mchid.clone(),
331            "sub_mchid"=> sub_mchid
332        };
333        match self.http(&url, Method::POST, body) {
334            Ok(_) => Ok(true.into()),
335            Err(e) => Err(e)
336        }
337    }
338
339    fn pay_query(&mut self, out_trade_no: &str, sub_mchid: &str) -> Result<JsonValue, String> {
340        let url = format!(
341            "/v3/pay/partner/transactions/out-trade-no/{}?sub_mchid={}&sp_mchid={}",
342            out_trade_no, sub_mchid, self.sp_mchid
343        );
344        match self.http(&url, Method::GET, "".into()) {
345            Ok(e) => {
346                if e.has_key("message") {
347                    return Err(e["message"].to_string());
348                }
349                let res = PayNotify {
350                    trade_type: TradeType::from(e["trade_type"].to_string().as_str()),
351                    out_trade_no: e["out_trade_no"].as_str().unwrap().to_string(),
352                    sp_mchid: e["sp_mchid"].as_str().unwrap().to_string(),
353                    sub_mchid: e["sub_mchid"].as_str().unwrap().to_string(),
354                    sp_appid: e["sp_appid"].as_str().unwrap().to_string(),
355                    transaction_id: e["transaction_id"].to_string(),
356                    success_time: PayNotify::success_time(e["success_time"].as_str().unwrap_or("")),
357                    sp_openid: e["payer"]["sp_openid"].to_string(),
358                    sub_openid: e["payer"]["sub_openid"].to_string(),
359                    total: e["amount"]["total"].as_f64().unwrap_or(0.0) / 100.0,
360                    currency: e["amount"]["currency"].to_string(),
361                    payer_total: e["amount"]["payer_total"].as_f64().unwrap_or(0.0) / 100.0,
362                    payer_currency: e["amount"]["payer_currency"].to_string(),
363                    trade_state: TradeState::from(e["trade_state"].as_str().unwrap()),
364                };
365                Ok(res.json())
366            }
367            Err(e) => Err(e),
368        }
369    }
370
371    fn pay_micropay_query(&mut self, out_trade_no: &str, sub_mchid: &str) -> Result<JsonValue, String> {
372        let nonce_str: String = rand::rng().sample_iter(&Alphanumeric).take(32).map(char::from).collect();
373        let mut body = object! {
374            "appid": self.appid.clone(),
375            "mch_id"=> self.sp_mchid.clone(),
376            "sub_mch_id"=> sub_mchid,
377            "nonce_str"=>nonce_str,
378            "out_trade_no"=>out_trade_no
379        };
380        body["sign"] = self.sign_v2(body.clone())?.into();
381        let mut xml = vec!["<xml>".to_owned()];
382        for (key, value) in body.entries() {
383            let t = format!("<{}>{}</{00}>", key, value.clone().clone());
384            xml.push(t);
385        }
386        xml.push("</xml>".to_owned());
387        let xml = xml.join("");
388        let mut http = br_reqwest::Client::new();
389        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() {
390            Ok(e) => {
391                if e.has_key("result_code") && e["result_code"] != "SUCCESS" {
392                    error!("pay_micropay_query: {e:#}");
393                    return Err(e["return_msg"].to_string());
394                }
395
396                let res = PayNotify {
397                    trade_type: TradeType::from(e["trade_type"].to_string().as_str()),
398                    out_trade_no: e["out_trade_no"].as_str().unwrap().to_string(),
399                    sp_mchid: e["mch_id"].as_str().unwrap().to_string(),
400                    sub_mchid: e["sub_mch_id"].as_str().unwrap().to_string(),
401                    sp_appid: e["appid"].as_str().unwrap().to_string(),
402                    transaction_id: e["transaction_id"].to_string(),
403                    success_time: PayNotify::datetime_to_timestamp(e["time_end"].as_str().unwrap_or(""), "%Y%m%d%H%M%S"),
404                    sp_openid: e["device_info"].to_string(),
405                    sub_openid: e["openid"].to_string(),
406                    total: e["total_fee"].to_string().parse::<f64>().unwrap_or(0.0) / 100.0,
407                    currency: e["fee_type"].to_string(),
408                    payer_total: e["cash_fee"].to_string().parse::<f64>().unwrap_or(0.0) / 100.0,
409                    payer_currency: e["cash_fee_type"].to_string(),
410                    trade_state: TradeState::from(e["trade_state"].as_str().unwrap()),
411                };
412                Ok(res.json())
413            }
414            Err(e) => Err(e),
415        }
416    }
417    fn pay_notify(&mut self, nonce: &str, ciphertext: &str, associated_data: &str) -> Result<JsonValue, String> {
418        if self.apikey.is_empty() {
419            return Err("apikey 不能为空".to_string());
420        }
421        let key = Key::<Aes256Gcm>::from_slice(self.apikey.as_bytes());
422        let cipher = Aes256Gcm::new(key);
423        let nonce = Nonce::from_slice(nonce.as_bytes());
424        let data = match STANDARD.decode(ciphertext) {
425            Ok(e) => e,
426            Err(e) => return Err(format!("Invalid data received from API :{e}"))
427        };
428        // 组合 Payload（带 aad）
429        let payload = Payload {
430            msg: &data,
431            aad: associated_data.as_bytes(),
432        };
433
434        // 解密
435        let plaintext = match cipher.decrypt(nonce, payload) {
436            Ok(e) => e,
437            Err(e) => {
438                return Err(format!("解密 API:{e}"));
439            }
440        };
441        let rr = match String::from_utf8(plaintext) {
442            Ok(d) => d,
443            Err(_) => return Err("utf8 error".to_string())
444        };
445        let json = match json::parse(rr.as_str()) {
446            Ok(e) => e,
447            Err(_) => return Err("json error".to_string())
448        };
449        let res = PayNotify {
450            trade_type: TradeType::from(json["trade_type"].as_str().unwrap()),
451            out_trade_no: json["out_trade_no"].as_str().unwrap().to_string(),
452            sp_mchid: json["sp_mchid"].as_str().unwrap().to_string(),
453            sub_mchid: json["sub_mchid"].as_str().unwrap().to_string(),
454            sp_appid: json["sp_appid"].as_str().unwrap().to_string(),
455            transaction_id: json["transaction_id"].as_str().unwrap().to_string(),
456            success_time: PayNotify::success_time(json["success_time"].as_str().unwrap_or("")),
457            sp_openid: json["payer"]["sp_openid"].as_str().unwrap().to_string(),
458            sub_openid: json["payer"]["sub_openid"].as_str().unwrap().to_string(),
459            total: json["amount"]["total"].to_string().parse::<f64>().unwrap_or(0.0) / 100.0,
460            payer_total: json["amount"]["payer_total"].to_string().parse::<f64>().unwrap_or(0.0) / 100.0,
461            currency: json["amount"]["currency"].to_string(),
462            payer_currency: json["amount"]["payer_currency"].to_string(),
463            trade_state: TradeState::from(json["trade_state"].as_str().unwrap()),
464        };
465        Ok(res.json())
466    }
467
468    fn refund(
469        &mut self,
470        sub_mchid: &str,
471        out_trade_no: &str,
472        transaction_id: &str,
473        out_refund_no: &str,
474        amount: f64,
475        total: f64,
476        currency: &str,
477    ) -> Result<JsonValue, String> {
478        let url = "/v3/refund/domestic/refunds";
479
480        let refund = format!("{:.0}", amount * 100.0);
481        let total = format!("{:.0}", total * 100.0);
482
483        let body = object! {
484            "sub_mchid"=> sub_mchid,
485            "transaction_id"=>transaction_id,
486            "out_trade_no"=>out_trade_no,
487            "out_refund_no"=>out_refund_no,
488            "amount"=>object! {
489                refund: refund.parse::<i64>().unwrap(),
490                total: total.parse::<i64>().unwrap(),
491                currency:currency
492            }
493        };
494        match self.http(url, Method::POST, body) {
495            Ok(e) => {
496                if e.is_empty() {
497                    return Err("已执行".to_string());
498                }
499                if e.has_key("message") {
500                    return Err(e["message"].to_string());
501                }
502                let mut refund_time = 0.0;
503                if e.has_key("success_time") {
504                    let success_time = e["success_time"].as_str().unwrap_or("").to_string();
505                    if !success_time.is_empty() {
506                        let datetime = DateTime::parse_from_rfc3339(success_time.as_str()).unwrap();
507                        refund_time = datetime.timestamp() as f64;
508                    }
509                }
510
511                let status = match e["status"].as_str().unwrap() {
512                    "PROCESSING" => "退款中",
513                    "SUCCESS" => "已退款",
514                    _ => "无退款",
515                };
516                let info = object! {
517                    refund_id: e["refund_id"].clone(),
518                    user_received_account:e["user_received_account"].clone(),
519                    status:status,
520                    refund_time:refund_time,
521                    out_refund_no: e["out_refund_no"].clone(),
522                };
523                Ok(info)
524            }
525            Err(e) => Err(e)
526        }
527    }
528
529    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> {
530        let refund = format!("{:.0}", amount * 100.0);
531        let total = format!("{:.0}", total * 100.0);
532
533
534        let nonce_str: String = rand::rng().sample_iter(&Alphanumeric).take(32).map(char::from).collect();
535        let mut body = object! {
536            "appid": self.appid.clone(),
537            "mch_id"=> self.sp_mchid.clone(),
538            "sub_mch_id"=> sub_mchid,
539            "nonce_str"=>nonce_str,
540            "out_trade_no"=>out_trade_no,
541            "transaction_id"=>transaction_id,
542            "out_refund_no"=>out_refund_no,
543            "total_fee"=>total,
544            "refund_fee"=>refund,
545            "refund_fee_type"=> currency,
546            "refund_desc"=>refund_text
547        };
548        body["sign"] = self.sign_v2(body.clone())?.into();
549        let mut xml = vec!["<xml>".to_owned()];
550        for (key, value) in body.entries() {
551            let t = format!("<{}>{}</{00}>", key, value.clone().clone());
552            xml.push(t);
553        }
554        xml.push("</xml>".to_owned());
555        let xml = xml.join("");
556        let mut http = br_reqwest::Client::new();
557        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() {
558            Ok(e) => {
559                println!("{e:#}");
560                if e.is_empty() {
561                    return Err("已执行".to_string());
562                }
563                if e.has_key("message") {
564                    return Err(e["message"].to_string());
565                }
566                let mut refund_time = 0.0;
567                if e.has_key("success_time") {
568                    let success_time = e["success_time"].as_str().unwrap_or("").to_string();
569                    if !success_time.is_empty() {
570                        let datetime = DateTime::parse_from_rfc3339(success_time.as_str()).unwrap();
571                        refund_time = datetime.timestamp() as f64;
572                    }
573                }
574
575                let status = match e["status"].as_str().unwrap() {
576                    "PROCESSING" => "退款中",
577                    "SUCCESS" => "已退款",
578                    _ => "无退款",
579                };
580                let info = object! {
581                    refund_id: e["refund_id"].clone(),
582                    user_received_account:e["user_received_account"].clone(),
583                    status:status,
584                    refund_time:refund_time,
585                    out_refund_no: e["out_refund_no"].clone(),
586                };
587                Ok(info)
588            }
589            Err(e) => Err(e),
590        }
591    }
592
593    fn refund_notify(&mut self, nonce: &str, ciphertext: &str, associated_data: &str) -> Result<JsonValue, String> {
594        if self.apikey.is_empty() {
595            return Err("apikey 不能为空".to_string());
596        }
597        let key = Key::<Aes256Gcm>::from_slice(self.apikey.as_bytes());
598        let cipher = Aes256Gcm::new(key);
599        let nonce = Nonce::from_slice(nonce.as_bytes());
600        let data = match STANDARD.decode(ciphertext) {
601            Ok(e) => e,
602            Err(e) => return Err(format!("Invalid data received from API :{e}"))
603        };
604        // 组合 Payload（带 aad）
605        let payload = Payload {
606            msg: &data,
607            aad: associated_data.as_bytes(),
608        };
609
610        // 解密
611        let plaintext = match cipher.decrypt(nonce, payload) {
612            Ok(e) => e,
613            Err(e) => {
614                return Err(format!("解密 API:{e}"));
615            }
616        };
617        let rr = match String::from_utf8(plaintext) {
618            Ok(d) => d,
619            Err(_) => return Err("utf8 error".to_string())
620        };
621        let json = match json::parse(rr.as_str()) {
622            Ok(e) => e,
623            Err(_) => return Err("json error".to_string())
624        };
625        let res = RefundNotify {
626            out_trade_no: json["out_trade_no"].to_string(),
627            refund_no: json["out_refund_no"].to_string(),
628            refund_id: json["refund_id"].to_string(),
629            sp_mchid: json["sp_mchid"].as_str().unwrap().to_string(),
630            sub_mchid: json["sub_mchid"].as_str().unwrap().to_string(),
631            transaction_id: json["transaction_id"].as_str().unwrap().to_string(),
632            success_time: PayNotify::success_time(json["success_time"].as_str().unwrap_or("")),
633            total: json["amount"]["total"].as_f64().unwrap_or(0.0) / 100.0,
634            refund: json["amount"]["refund"].as_f64().unwrap_or(0.0) / 100.0,
635            payer_total: json["amount"]["payer_total"].as_f64().unwrap() / 100.0,
636            payer_refund: json["amount"]["payer_refund"].as_f64().unwrap() / 100.0,
637            status: RefundStatus::from(json["refund_status"].as_str().unwrap()),
638        };
639        Ok(res.json())
640    }
641
642    fn refund_query(&mut self, _trade_no: &str, out_refund_no: &str, sub_mchid: &str) -> Result<JsonValue, String> {
643        let url = format!("/v3/refund/domestic/refunds/{out_refund_no}?sub_mchid={sub_mchid}");
644        match self.http(&url, Method::GET, "".into()) {
645            Ok(e) => {
646                if e.is_empty() {
647                    return Err("已执行".to_string());
648                }
649                if e.has_key("message") {
650                    return Err(e["message"].to_string());
651                }
652
653
654                let res = RefundNotify {
655                    out_trade_no: e["out_trade_no"].to_string(),
656                    refund_no: e["out_refund_no"].to_string(),
657                    sp_mchid: "".to_string(),
658                    sub_mchid: sub_mchid.to_string(),
659                    transaction_id: e["transaction_id"].to_string(),
660                    refund_id: e["refund_id"].to_string(),
661                    success_time: PayNotify::success_time(e["success_time"].as_str().unwrap_or("")),
662                    total: e["amount"]["total"].to_string().parse::<f64>().unwrap(),
663                    payer_total: e["amount"]["total"].to_string().parse::<f64>().unwrap(),
664                    refund: e["amount"]["refund"].to_string().parse::<f64>().unwrap(),
665                    payer_refund: e["amount"]["refund"].to_string().parse::<f64>().unwrap(),
666                    status: RefundStatus::from(e["status"].as_str().unwrap()),
667                };
668
669                Ok(res.json())
670            }
671            Err(e) => Err(e),
672        }
673    }
674
675    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> {
676        let contact_info_data = object! {
677            // 超级管理员类型 LEGAL: 经营者/法人 SUPER: 经办人
678            contact_type:contact_info["contact_type"].clone(),
679            contact_name:contact_info["contact_name"].clone(),
680        };
681
682        let body = object! {
683            business_code:business_code,
684            contact_info:contact_info_data
685        };
686        println!("{body:#}");
687        match self.http("/v3/applyment4sub/applyment/", Method::POST, body) {
688            Ok(e) => {
689                println!("{e:#}");
690                if e.is_empty() {
691                    return Err("已执行".to_string());
692                }
693                if e.has_key("message") {
694                    return Err(e["message"].to_string());
695                }
696                Ok(e)
697            }
698            Err(e) => Err(e),
699        }
700    }
701}
br_pay/wechat.rs

br_pay/
wechat.rs
