first commit

pkg/token/token_url.go

@@ -0,0 +1,48 @@
+package token
+
+import (
+	"crypto/md5"
+	"encoding/base64"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"net/url"
+	"strings"
+)
+
+// UrlSign
+// path 请求的路径 (不附带 querystring)
+func (t *token) UrlSign(path string, method string, params url.Values) (tokenString string, err error) {
+	// 合法的 Methods
+	methods := map[string]bool{
+		"get":     true,
+		"post":    true,
+		"put":     true,
+		"path":    true,
+		"delete":  true,
+		"head":    true,
+		"options": true,
+	}
+
+	methodName := strings.ToLower(method)
+	if !methods[methodName] {
+		err = errors.New("method param error")
+		return
+	}
+
+	// Encode() 方法中自带 sorted by key
+	sortParamsEncode := params.Encode()
+
+	// 加密字符串规则 path + method + sortParamsEncode + secret
+	encryptStr := fmt.Sprintf("%s%s%s%s", path, methodName, sortParamsEncode, t.secret)
+
+	// 对加密字符串进行 md5
+	s := md5.New()
+	s.Write([]byte(encryptStr))
+	md5Str := hex.EncodeToString(s.Sum(nil))
+
+	// 对 md5Str 进行 base64 encode
+	tokenString = base64.StdEncoding.EncodeToString([]byte(md5Str))
+
+	return
+}