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Copy pathalipay_handle_wap.go
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alipay_handle_wap.go
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package alipay
import (
"encoding/xml"
"errors"
"fmt"
"io"
"log"
"net/http"
"net/url"
"regexp"
)
func AlipayWapRequest(alipayConfig *AlipayConfig, r *AlipayWebRequest, w io.Writer) error {
var format = "xml"
var v = "2.0"
args := []interface{}{}
args = append(args, alipayConfig.Notify_url)
args = append(args, alipayConfig.Wap_callback_url)
args = append(args, alipayConfig.Seller_id)
args = append(args, r.OutTradeNo)
args = append(args, r.Subject)
args = append(args, fmt.Sprintf("%.2f", r.TotalFee))
args = append(args, alipayConfig.Wap_merchant_url)
var token_req_data = fmt.Sprintf("<direct_trade_create_req><notify_url>%v</notify_url><call_back_url>%v</call_back_url><seller_account_name>%v</seller_account_name><out_trade_no>%v</out_trade_no><subject>%v</subject><total_fee>%v</total_fee><merchant_url>%v</merchant_url></direct_trade_create_req>", args...)
log.Println("token_req_data = %v", token_req_data)
p := Kvpairs{
Kvpair{`service`, alipayConfig.Wap_Service},
Kvpair{`partner`, alipayConfig.Partner},
Kvpair{`sec_id`, alipayConfig.Sign_type},
Kvpair{`format`, format},
Kvpair{`v`, v},
Kvpair{`req_id`, r.OutTradeNo},
Kvpair{`req_data`, token_req_data},
Kvpair{`_input_charset`, alipayConfig.Input_charset},
}
paraFilter(&p)
argSort(&p)
buildRequestPara(&p, alipayConfig)
log.Println("pararms is = %v", p)
origin_token, err := getHttpResponsePOST(wap_alipayGatewayNew, "", alipayConfig.Input_charset, &p)
if nil != err {
log.Println("get token fail : %v", err)
return err
}
log.Println("origin_token = %v", origin_token)
origin_token, _ = url.QueryUnescape(origin_token)
log.Println("origin_token url.QueryUnescape = %v", origin_token)
token := ParseOriginTokenMsg(origin_token, alipayConfig)
if token == "" {
fmt.Fprintln(w, origin_token)
return errors.New("解析token失败")
}
var trade_req_data = fmt.Sprintf("<auth_and_execute_req><request_token>%v</request_token></auth_and_execute_req>", token)
p2 := Kvpairs{
Kvpair{`service`, alipayConfig.Service},
Kvpair{`partner`, alipayConfig.Partner},
Kvpair{`sec_id`, alipayConfig.Sign_type},
Kvpair{`format`, format},
Kvpair{`v`, v},
Kvpair{`req_id`, r.OutTradeNo},
Kvpair{`req_data`, trade_req_data},
Kvpair{`_input_charset`, alipayConfig.Input_charset},
}
paraFilter(&p2)
argSort(&p2)
buildRequestPara(&p2, alipayConfig)
// log.Println("pararm2 = %v", p2)
fmt.Fprintln(w, `<html><head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head><body>`)
fmt.Fprintf(w, `<form name='alipaysubmit' action='%s_input_charset=utf-8' method='get'> `, wap_alipayGatewayNew)
for _, kv := range p2 {
fmt.Fprintf(w, `<input type='hidden' name='%s' value='%s' />`, kv.K, kv.V)
}
fmt.Fprintln(w, `<script>document.forms['alipaysubmit'].submit();</script>`)
fmt.Fprintln(w, `</body></html>`)
return nil
}
/**
* 验证消息是否是支付宝发出的合法消息
* @return 验证结果
*/
func VerifyWapNotify(r *http.Request, alipayConfig *AlipayConfig) (Notify, error) {
log.Println("VerifyWapNotify begin")
p := &Kvpairs{}
sign := ""
sign_type := ""
notify_data := ""
var alipayNotify Notify
for k := range r.Form {
v := r.Form.Get(k)
switch k {
case "sign":
sign = v
continue
case "sign_type":
sign_type = v
continue
case "notify_data":
notify_data = v
}
*p = append(*p, Kvpair{k, v})
}
//除去待签名参数数组中的空值和签名参数
paraFilter(p)
//对待签名参数数组排序
argSort(p)
if notify_data == "" {
log.Println("notify_data is null")
return alipayNotify, errors.New("notify_data is null")
}
err := xml.Unmarshal([]byte(notify_data), &alipayNotify)
if err != nil {
log.Println("xml Unmarshal err : %v", err)
return alipayNotify, err
}
// log.Println("p = %v", p)
p2 := sortNotifyPara(p)
// log.Println("p2 = %v", p2)
//把数组所有元素，按照“参数=参数值”的模式用“&”字符拼接成字符串
prestr := createLinkStringNoUrl(&p2)
log.Println("VerifyWapNotify prestr is : %v ", prestr)
log.Println("VerifyWapNotify sign is : %v , sign_type is %v", sign, sign_type)
switch alipayConfig.Sign_type {
case "MD5":
if md5Sign(prestr, alipayConfig.Key) != sign {
return alipayNotify, fmt.Errorf("sign invalid")
}
break
default:
return alipayNotify, fmt.Errorf("no right sign_type")
}
log.Println("VerifyWapNotify Notify is %v", alipayNotify)
notify_id := alipayNotify.Notify_id
//获取支付宝远程服务器ATN结果（验证是否是支付宝发来的消息）(1分钟认证)
responseTxt, err := getResponse(notify_id, alipayConfig)
if err != nil {
return alipayNotify, err
}
log.Println("VerifyWapNotify responseTxt is: %v", responseTxt)
reg := regexp.MustCompile(`true`)
if 0 == len(reg.FindAllString(responseTxt, -1)) {
log.Println("VerifyWapNotify responseTxt verify fail ")
return alipayNotify, fmt.Errorf("VerifyWapNotify responseTxt is wrong")
}
log.Println("VerifyWapNotify responseTxt verify success ")
return alipayNotify, nil
}
/**
* 验证消息是否是支付宝发出的合法消息
* @return 验证结果
*/
func VerifyWapCallback(r *http.Request, alipayConfig *AlipayConfig) error {
log.Println("VerifyWapCallback begin")
p := &Kvpairs{}
sign := ""
sign_type := ""
for k := range r.Form {
v := r.Form.Get(k)
switch k {
case "sign":
sign = v
continue
case "sign_type":
sign_type = v
continue
}
*p = append(*p, Kvpair{k, v})
}
//除去待签名参数数组中的空值和签名参数
paraFilter(p)
//对待签名参数数组排序
argSort(p)
// log.Println("VerifyWapCallback p = %v", p)
//把数组所有元素，按照“参数=参数值”的模式用“&”字符拼接成字符串
prestr := createLinkStringNoUrl(p)
log.Println("VerifyWapCallback prestr is : %v ", prestr)
log.Println("VerifyWapCallback sign is : %v , sign_type is %v", sign, sign_type)
switch sign_type {
case "MD5":
if md5Sign(prestr, alipayConfig.Key) != sign {
return fmt.Errorf("sign invalid")
}
break
default:
return fmt.Errorf("no right sign_type")
}
log.Println("VerifyWapCallback success")
return nil
}