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Merge pull request #14 from huangxingx/master
支付宝添加企业付款功能和RSA2加密
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,152 @@ | ||
| package client | ||
|
|
||
| import ( | ||
| "crypto" | ||
| "crypto/rand" | ||
| "crypto/rsa" | ||
| "crypto/sha1" | ||
| "crypto/sha256" | ||
| "encoding/base64" | ||
| "encoding/json" | ||
| "errors" | ||
| "fmt" | ||
| "github.com/milkbobo/gopay/common" | ||
| "hash" | ||
| "net/url" | ||
| "sort" | ||
| "strings" | ||
| "time" | ||
| ) | ||
|
|
||
| type AliPayClient struct { | ||
| AppID string // 应用ID | ||
|
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| PrivateKey *rsa.PrivateKey | ||
| PublicKey *rsa.PublicKey | ||
|
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| RSAType string // RSA or RSA2 | ||
| } | ||
|
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||
| func (this *AliPayClient) PayToClient(charge *common.Charge) (map[string]string, error) { | ||
| var result = make(map[string]string) | ||
| var m = make(map[string]string) | ||
| var bizContent = make(map[string]string) | ||
| m["app_id"] = this.AppID | ||
| m["method"] = "alipay.fund.trans.toaccount.transfer" | ||
| m["format"] = "JSON" | ||
| m["charset"] = "utf-8" | ||
| m["timestamp"] = time.Now().Format("2006-01-02 15:04:05") | ||
| m["version"] = "1.0" | ||
| m["sign_type"] = this.RSAType | ||
|
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| bizContent["out_biz_no"] = charge.TradeNum | ||
| bizContent["amount"] = AliyunMoneyFeeToString(charge.MoneyFee) | ||
| bizContent["payee_account"] = charge.AliAccount | ||
| bizContent["payee_type"] = charge.AliAccountType | ||
|
|
||
| bizContent["remark"] = TruncatedText(charge.Describe, 32) | ||
|
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| bizContentJson, err := json.Marshal(bizContent) | ||
| if err != nil { | ||
| return result, errors.New("json.Marshal: " + err.Error()) | ||
| } | ||
| m["biz_content"] = string(bizContentJson) | ||
|
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| m["sign"] = this.GenSign(m) | ||
|
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| requestUrl := fmt.Sprintf("%s?%s", "https://openapi.alipay.com/gateway.do", this.ToURL(m)) | ||
|
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| var resp map[string]interface{} | ||
| bytes, err := HTTPSC.GetData(requestUrl) | ||
| if err != nil { | ||
| return result, err | ||
| } | ||
| err = json.Unmarshal(bytes, &resp) | ||
| if err != nil { | ||
| return result, err | ||
| } | ||
|
|
||
| result, ok := resp["alipay_fund_trans_toaccount_transfer_response"].(map[string]string) | ||
| if !ok { | ||
| return result, errors.New(fmt.Sprintf("返回结果错误:%s", resp)) | ||
| } | ||
|
|
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| return result, nil | ||
| } | ||
|
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| // GenSign 产生签名 | ||
| func (this *AliPayClient) GenSign(m map[string]string) string { | ||
| var data []string | ||
|
|
||
| for k, v := range m { | ||
| if v != "" && k != "sign" { | ||
| data = append(data, fmt.Sprintf(`%s=%s`, k, v)) | ||
| } | ||
| } | ||
| sort.Strings(data) | ||
| signData := strings.Join(data, "&") | ||
|
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| s := this.getHash(this.RSAType) | ||
|
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| _, err := s.Write([]byte(signData)) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| hashByte := s.Sum(nil) | ||
| signByte, err := this.PrivateKey.Sign(rand.Reader, hashByte, crypto.SHA256) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
|
|
||
| return base64.StdEncoding.EncodeToString(signByte) | ||
| } | ||
|
|
||
| // CheckSign 检测签名 | ||
| func (this *AliPayClient) CheckSign(signData, sign string) { | ||
| signByte, err := base64.StdEncoding.DecodeString(sign) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| s := this.getHash(this.RSAType) | ||
| _, err = s.Write([]byte(signData)) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| hashByte := s.Sum(nil) | ||
| err = rsa.VerifyPKCS1v15(this.PublicKey, this.getCrypto(), hashByte, signByte) | ||
| if err != nil { | ||
| panic(err) | ||
| } | ||
| } | ||
|
|
||
| // ToURL | ||
| func (this *AliPayClient) ToURL(m map[string]string) string { | ||
| var buf []string | ||
| for k, v := range m { | ||
| buf = append(buf, fmt.Sprintf("%s=%s", k, url.QueryEscape(v))) | ||
| } | ||
| return strings.Join(buf, "&") | ||
| } | ||
|
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||
| func (this *AliPayClient) getRsa() string { | ||
| if this.RSAType == "" { | ||
| this.RSAType = "RSA" | ||
| } | ||
|
|
||
| return this.RSAType | ||
| } | ||
|
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| func (this *AliPayClient) getCrypto() crypto.Hash { | ||
| if this.RSAType == "RSA2" { | ||
| return crypto.SHA256 | ||
| } | ||
| return crypto.SHA1 | ||
|
|
||
| } | ||
|
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| func (this *AliPayClient) getHash(rasType string) hash.Hash { | ||
| if rasType == "RSA2" { | ||
| return sha256.New() | ||
| } | ||
| return sha1.New() | ||
| } |
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