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    fn login(&mut self, _code: &str) -> Result<JsonValue, String> {
234        todo!()
235    }
236
237
238    fn auth(&mut self, _code: &str) -> Result<JsonValue, String> {
239        todo!()
240    }
241    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> {
242        let url = match types {
243            Types::Jsapi => "/v3/pay/partner/transactions/jsapi",
244            Types::Native => "/v3/pay/partner/transactions/native",
245            Types::H5 => "/v3/pay/partner/transactions/h5",
246            Types::MiniJsapi => "/v3/pay/partner/transactions/jsapi",
247            Types::App => "/v3/pay/partner/transactions/app",
248            Types::Micropay => "/pay/micropay"
249        };
250        let total = format!("{:.0}", total_fee * 100.0);
251        let mut body = object! {
252            "sp_appid" => self.appid.clone(),
253            "sp_mchid"=> self.sp_mchid.clone(),
254            "sub_mchid"=> sub_mchid,
255            "description"=>description,
256            "out_trade_no"=>out_trade_no,
257            "notify_url"=>self.notify_url.clone(),
258            "support_fapiao"=>true,
259            "amount"=>object! {
260                total: total.parse::<i64>().unwrap(),
261                currency:"CNY"
262            }
263        };
264        match types {
265            Types::Native => {}
266            _ => {
267                body["payer"] = object! {
268                sp_openid:sp_openid
269            };
270            }
271        };
272        match self.http(url, Method::POST, body) {
273            Ok(e) => {
274                match types {
275                    Types::Native => {
276                        if e.has_key("code_url") {
277                            Ok(e["code_url"].clone())
278                        } else {
279                            Err(e["message"].to_string())
280                        }
281                    }
282                    Types::Jsapi | Types::MiniJsapi => {
283                        if e.has_key("prepay_id") {
284                            let signinfo = self.paysign(format!("prepay_id={}", e["prepay_id"]).as_str())?;
285                            Ok(signinfo)
286                        } else {
287                            Err(e["message"].to_string())
288                        }
289                    }
290                    _ => {
291                        Ok(e)
292                    }
293                }
294            }
295            Err(e) => Err(e),
296        }
297    }
298
299    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> {
300        let url = "/pay/micropay";
301        let total = format!("{:.0}", total_fee * 100.0);
302
303        let nonce_str: String = rand::rng().sample_iter(&Alphanumeric).take(32).map(char::from).collect();
304
305        let mut body = object! {
306            "appid": self.appid.clone(),
307            "mch_id"=> self.sp_mchid.clone(),
308            "sub_mch_id"=> sub_mchid,
309            "nonce_str"=>nonce_str,
310            "body"=> description,
311            "out_trade_no"=>out_trade_no,
312            "total_fee"=>total.parse::<i64>().unwrap(),
313            "fee_type":"CNY",
314            "spbill_create_ip":ip,
315            "device_info":org_openid,
316            "auth_code":auth_code
317        };
318        body["sign"] = self.sign_v2(body.clone())?.into();
319        let mut xml = vec!["<xml>".to_owned()];
320        for (key, value) in body.entries() {
321            let t = format!("<{}>{}</{00}>", key, value.clone().clone());
322            xml.push(t);
323        }
324        xml.push("</xml>".to_owned());
325        let xml = xml.join("");
326        let mut http = br_reqwest::Client::new();
327        match http.post(format!("https://api.mch.weixin.qq.com{url}").as_str()).header("Content-Type", "application/xml").raw_xml(xml.into()).send()?.xml() {
328            Ok(e) => Ok(e),
329            Err(e) => Err(e),
330        }
331    }
332
333    fn close(&mut self, out_trade_no: &str, sub_mchid: &str) -> Result<JsonValue, String> {
334        let url = format!("/v3/pay/partner/transactions/out-trade-no/{out_trade_no}/close");
335        let body = object! {
336            "sp_mchid"=> self.sp_mchid.clone(),
337            "sub_mchid"=> sub_mchid
338        };
339        match self.http(&url, Method::POST, body) {
340            Ok(_) => Ok(true.into()),
341            Err(e) => Err(e)
342        }
343    }
344
345    fn pay_query(&mut self, out_trade_no: &str, sub_mchid: &str) -> Result<JsonValue, String> {
346        let url = format!(
347            "/v3/pay/partner/transactions/out-trade-no/{}?sub_mchid={}&sp_mchid={}",
348            out_trade_no, sub_mchid, self.sp_mchid
349        );
350        match self.http(&url, Method::GET, "".into()) {
351            Ok(e) => {
352                if e.has_key("message") {
353                    return Err(e["message"].to_string());
354                }
355                let res = PayNotify {
356                    trade_type: TradeType::from(e["trade_type"].to_string().as_str()),
357                    out_trade_no: e["out_trade_no"].as_str().unwrap().to_string(),
358                    sp_mchid: e["sp_mchid"].as_str().unwrap().to_string(),
359                    sub_mchid: e["sub_mchid"].as_str().unwrap().to_string(),
360                    sp_appid: e["sp_appid"].as_str().unwrap().to_string(),
361                    transaction_id: e["transaction_id"].to_string(),
362                    success_time: PayNotify::success_time(e["success_time"].as_str().unwrap_or("")),
363                    sp_openid: e["payer"]["sp_openid"].to_string(),
364                    sub_openid: e["payer"]["sub_openid"].to_string(),
365                    total: e["amount"]["total"].as_f64().unwrap_or(0.0) / 100.0,
366                    currency: e["amount"]["currency"].to_string(),
367                    payer_total: e["amount"]["payer_total"].as_f64().unwrap_or(0.0) / 100.0,
368                    payer_currency: e["amount"]["payer_currency"].to_string(),
369                    trade_state: TradeState::from(e["trade_state"].as_str().unwrap()),
370                };
371                Ok(res.json())
372            }
373            Err(e) => Err(e),
374        }
375    }
376
377    fn pay_micropay_query(&mut self, out_trade_no: &str, sub_mchid: &str) -> Result<JsonValue, String> {
378        let nonce_str: String = rand::rng().sample_iter(&Alphanumeric).take(32).map(char::from).collect();
379        let mut body = object! {
380            "appid": self.appid.clone(),
381            "mch_id"=> self.sp_mchid.clone(),
382            "sub_mch_id"=> sub_mchid,
383            "nonce_str"=>nonce_str,
384            "out_trade_no"=>out_trade_no
385        };
386        body["sign"] = self.sign_v2(body.clone())?.into();
387        let mut xml = vec!["<xml>".to_owned()];
388        for (key, value) in body.entries() {
389            let t = format!("<{}>{}</{00}>", key, value.clone().clone());
390            xml.push(t);
391        }
392        xml.push("</xml>".to_owned());
393        let xml = xml.join("");
394        let mut http = br_reqwest::Client::new();
395        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() {
396            Ok(e) => {
397                if e.has_key("result_code") && e["result_code"] != "SUCCESS" {
398                    error!("pay_micropay_query: {e:#}");
399                    return Err(e["return_msg"].to_string());
400                }
401
402                let res = PayNotify {
403                    trade_type: TradeType::from(e["trade_type"].to_string().as_str()),
404                    out_trade_no: e["out_trade_no"].as_str().unwrap().to_string(),
405                    sp_mchid: e["mch_id"].as_str().unwrap().to_string(),
406                    sub_mchid: e["sub_mch_id"].as_str().unwrap().to_string(),
407                    sp_appid: e["appid"].as_str().unwrap().to_string(),
408                    transaction_id: e["transaction_id"].to_string(),
409                    success_time: PayNotify::datetime_to_timestamp(e["time_end"].as_str().unwrap_or(""), "%Y%m%d%H%M%S"),
410                    sp_openid: e["device_info"].to_string(),
411                    sub_openid: e["openid"].to_string(),
412                    total: e["total_fee"].to_string().parse::<f64>().unwrap_or(0.0) / 100.0,
413                    currency: e["fee_type"].to_string(),
414                    payer_total: e["cash_fee"].to_string().parse::<f64>().unwrap_or(0.0) / 100.0,
415                    payer_currency: e["cash_fee_type"].to_string(),
416                    trade_state: TradeState::from(e["trade_state"].as_str().unwrap()),
417                };
418                Ok(res.json())
419            }
420            Err(e) => Err(e),
421        }
422    }
423    fn pay_notify(&mut self, nonce: &str, ciphertext: &str, associated_data: &str) -> Result<JsonValue, String> {
424        if self.apikey.is_empty() {
425            return Err("apikey 不能为空".to_string());
426        }
427        let key = Key::<Aes256Gcm>::from_slice(self.apikey.as_bytes());
428        let cipher = Aes256Gcm::new(key);
429        let nonce = Nonce::from_slice(nonce.as_bytes());
430        let data = match STANDARD.decode(ciphertext) {
431            Ok(e) => e,
432            Err(e) => return Err(format!("Invalid data received from API :{e}"))
433        };
434        // 组合 Payload（带 aad）
435        let payload = Payload {
436            msg: &data,
437            aad: associated_data.as_bytes(),
438        };
439
440        // 解密
441        let plaintext = match cipher.decrypt(nonce, payload) {
442            Ok(e) => e,
443            Err(e) => {
444                return Err(format!("解密 API:{e}"));
445            }
446        };
447        let rr = match String::from_utf8(plaintext) {
448            Ok(d) => d,
449            Err(_) => return Err("utf8 error".to_string())
450        };
451        let json = match json::parse(rr.as_str()) {
452            Ok(e) => e,
453            Err(_) => return Err("json error".to_string())
454        };
455        let res = PayNotify {
456            trade_type: TradeType::from(json["trade_type"].as_str().unwrap()),
457            out_trade_no: json["out_trade_no"].as_str().unwrap().to_string(),
458            sp_mchid: json["sp_mchid"].as_str().unwrap().to_string(),
459            sub_mchid: json["sub_mchid"].as_str().unwrap().to_string(),
460            sp_appid: json["sp_appid"].as_str().unwrap().to_string(),
461            transaction_id: json["transaction_id"].as_str().unwrap().to_string(),
462            success_time: PayNotify::success_time(json["success_time"].as_str().unwrap_or("")),
463            sp_openid: json["payer"]["sp_openid"].as_str().unwrap().to_string(),
464            sub_openid: json["payer"]["sub_openid"].as_str().unwrap().to_string(),
465            total: json["amount"]["total"].to_string().parse::<f64>().unwrap_or(0.0) / 100.0,
466            payer_total: json["amount"]["payer_total"].to_string().parse::<f64>().unwrap_or(0.0) / 100.0,
467            currency: json["amount"]["currency"].to_string(),
468            payer_currency: json["amount"]["payer_currency"].to_string(),
469            trade_state: TradeState::from(json["trade_state"].as_str().unwrap()),
470        };
471        Ok(res.json())
472    }
473
474    fn refund(
475        &mut self,
476        sub_mchid: &str,
477        out_trade_no: &str,
478        transaction_id: &str,
479        out_refund_no: &str,
480        amount: f64,
481        total: f64,
482        currency: &str,
483    ) -> Result<JsonValue, String> {
484        let url = "/v3/refund/domestic/refunds";
485
486        let refund = format!("{:.0}", amount * 100.0);
487        let total = format!("{:.0}", total * 100.0);
488
489        let body = object! {
490            "sub_mchid"=> sub_mchid,
491            "transaction_id"=>transaction_id,
492            "out_trade_no"=>out_trade_no,
493            "out_refund_no"=>out_refund_no,
494            "amount"=>object! {
495                refund: refund.parse::<i64>().unwrap(),
496                total: total.parse::<i64>().unwrap(),
497                currency:currency
498            }
499        };
500        match self.http(url, Method::POST, body) {
501            Ok(e) => {
502                if e.is_empty() {
503                    return Err("已执行".to_string());
504                }
505                if e.has_key("message") {
506                    return Err(e["message"].to_string());
507                }
508                let mut refund_time = 0.0;
509                if e.has_key("success_time") {
510                    let success_time = e["success_time"].as_str().unwrap_or("").to_string();
511                    if !success_time.is_empty() {
512                        let datetime = DateTime::parse_from_rfc3339(success_time.as_str()).unwrap();
513                        refund_time = datetime.timestamp() as f64;
514                    }
515                }
516
517                let status = match e["status"].as_str().unwrap() {
518                    "PROCESSING" => "退款中",
519                    "SUCCESS" => "已退款",
520                    _ => "无退款",
521                };
522                let info = object! {
523                    refund_id: e["refund_id"].clone(),
524                    user_received_account:e["user_received_account"].clone(),
525                    status:status,
526                    refund_time:refund_time,
527                    out_refund_no: e["out_refund_no"].clone(),
528                };
529                Ok(info)
530            }
531            Err(e) => Err(e)
532        }
533    }
534
535    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> {
536        let refund = format!("{:.0}", amount * 100.0);
537        let total = format!("{:.0}", total * 100.0);
538
539
540        let nonce_str: String = rand::rng().sample_iter(&Alphanumeric).take(32).map(char::from).collect();
541        let mut body = object! {
542            "appid": self.appid.clone(),
543            "mch_id"=> self.sp_mchid.clone(),
544            "sub_mch_id"=> sub_mchid,
545            "nonce_str"=>nonce_str,
546            "out_trade_no"=>out_trade_no,
547            "transaction_id"=>transaction_id,
548            "out_refund_no"=>out_refund_no,
549            "total_fee"=>total,
550            "refund_fee"=>refund,
551            "refund_fee_type"=> currency,
552            "refund_desc"=>refund_text
553        };
554        body["sign"] = self.sign_v2(body.clone())?.into();
555        let mut xml = vec!["<xml>".to_owned()];
556        for (key, value) in body.entries() {
557            let t = format!("<{}>{}</{00}>", key, value.clone().clone());
558            xml.push(t);
559        }
560        xml.push("</xml>".to_owned());
561        let xml = xml.join("");
562        let mut http = br_reqwest::Client::new();
563        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() {
564            Ok(e) => {
565                println!("{e:#}");
566                if e.is_empty() {
567                    return Err("已执行".to_string());
568                }
569                if e.has_key("message") {
570                    return Err(e["message"].to_string());
571                }
572                let mut refund_time = 0.0;
573                if e.has_key("success_time") {
574                    let success_time = e["success_time"].as_str().unwrap_or("").to_string();
575                    if !success_time.is_empty() {
576                        let datetime = DateTime::parse_from_rfc3339(success_time.as_str()).unwrap();
577                        refund_time = datetime.timestamp() as f64;
578                    }
579                }
580
581                let status = match e["status"].as_str().unwrap() {
582                    "PROCESSING" => "退款中",
583                    "SUCCESS" => "已退款",
584                    _ => "无退款",
585                };
586                let info = object! {
587                    refund_id: e["refund_id"].clone(),
588                    user_received_account:e["user_received_account"].clone(),
589                    status:status,
590                    refund_time:refund_time,
591                    out_refund_no: e["out_refund_no"].clone(),
592                };
593                Ok(info)
594            }
595            Err(e) => Err(e),
596        }
597    }
598
599    fn refund_notify(&mut self, nonce: &str, ciphertext: &str, associated_data: &str) -> Result<JsonValue, String> {
600        if self.apikey.is_empty() {
601            return Err("apikey 不能为空".to_string());
602        }
603        let key = Key::<Aes256Gcm>::from_slice(self.apikey.as_bytes());
604        let cipher = Aes256Gcm::new(key);
605        let nonce = Nonce::from_slice(nonce.as_bytes());
606        let data = match STANDARD.decode(ciphertext) {
607            Ok(e) => e,
608            Err(e) => return Err(format!("Invalid data received from API :{e}"))
609        };
610        // 组合 Payload（带 aad）
611        let payload = Payload {
612            msg: &data,
613            aad: associated_data.as_bytes(),
614        };
615
616        // 解密
617        let plaintext = match cipher.decrypt(nonce, payload) {
618            Ok(e) => e,
619            Err(e) => {
620                return Err(format!("解密 API:{e}"));
621            }
622        };
623        let rr = match String::from_utf8(plaintext) {
624            Ok(d) => d,
625            Err(_) => return Err("utf8 error".to_string())
626        };
627        let json = match json::parse(rr.as_str()) {
628            Ok(e) => e,
629            Err(_) => return Err("json error".to_string())
630        };
631        let res = RefundNotify {
632            out_trade_no: json["out_trade_no"].to_string(),
633            refund_no: json["out_refund_no"].to_string(),
634            refund_id: json["refund_id"].to_string(),
635            sp_mchid: json["sp_mchid"].as_str().unwrap().to_string(),
636            sub_mchid: json["sub_mchid"].as_str().unwrap().to_string(),
637            transaction_id: json["transaction_id"].as_str().unwrap().to_string(),
638            success_time: PayNotify::success_time(json["success_time"].as_str().unwrap_or("")),
639            total: json["amount"]["total"].as_f64().unwrap_or(0.0) / 100.0,
640            refund: json["amount"]["refund"].as_f64().unwrap_or(0.0) / 100.0,
641            payer_total: json["amount"]["payer_total"].as_f64().unwrap() / 100.0,
642            payer_refund: json["amount"]["payer_refund"].as_f64().unwrap() / 100.0,
643            status: RefundStatus::from(json["refund_status"].as_str().unwrap()),
644        };
645        Ok(res.json())
646    }
647
648    fn refund_query(&mut self, _trade_no: &str, out_refund_no: &str, sub_mchid: &str) -> Result<JsonValue, String> {
649        let url = format!("/v3/refund/domestic/refunds/{out_refund_no}?sub_mchid={sub_mchid}");
650        match self.http(&url, Method::GET, "".into()) {
651            Ok(e) => {
652                if e.is_empty() {
653                    return Err("已执行".to_string());
654                }
655                if e.has_key("message") {
656                    return Err(e["message"].to_string());
657                }
658
659
660                let res = RefundNotify {
661                    out_trade_no: e["out_trade_no"].to_string(),
662                    refund_no: e["out_refund_no"].to_string(),
663                    sp_mchid: "".to_string(),
664                    sub_mchid: sub_mchid.to_string(),
665                    transaction_id: e["transaction_id"].to_string(),
666                    refund_id: e["refund_id"].to_string(),
667                    success_time: PayNotify::success_time(e["success_time"].as_str().unwrap_or("")),
668                    total: e["amount"]["total"].to_string().parse::<f64>().unwrap(),
669                    payer_total: e["amount"]["total"].to_string().parse::<f64>().unwrap(),
670                    refund: e["amount"]["refund"].to_string().parse::<f64>().unwrap(),
671                    payer_refund: e["amount"]["refund"].to_string().parse::<f64>().unwrap(),
672                    status: RefundStatus::from(e["status"].as_str().unwrap()),
673                };
674
675                Ok(res.json())
676            }
677            Err(e) => Err(e),
678        }
679    }
680
681    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> {
682        let contact_info_data = object! {
683            // 超级管理员类型 LEGAL: 经营者/法人 SUPER: 经办人
684            contact_type:contact_info["contact_type"].clone(),
685            contact_name:contact_info["contact_name"].clone(),
686        };
687
688        let body = object! {
689            business_code:business_code,
690            contact_info:contact_info_data
691        };
692        println!("{body:#}");
693        match self.http("/v3/applyment4sub/applyment/", Method::POST, body) {
694            Ok(e) => {
695                println!("{e:#}");
696                if e.is_empty() {
697                    return Err("已执行".to_string());
698                }
699                if e.has_key("message") {
700                    return Err(e["message"].to_string());
701                }
702                Ok(e)
703            }
704            Err(e) => Err(e),
705        }
706    }
707}
br_pay/wechat.rs

br_pay/
wechat.rs
