golang update

README_EN.md

@@ -0,0 +1,24 @@
+## Note
+This project is the go implementation of tls-sig-api-v2. Previous asymmetric keys cannot use APIs of this version. To enable them to use APIs of this version,[see here](https://github.com/tencentyun/tls-sig-api-golang).
+
+## use
+``` go
+import (
+	"github.com/tencentyun/tls-sig-api-v2-golang/tencentyun"
+	"fmt"
+)
+
+const (
+	sdkappid = 1400000000
+	key = "5bd2850fff3ecb11d7c805251c51ee463a25727bddc2385f3fa8bfee1bb93b5e"
+)
+
+func main()  {
+	sig, err := tencentyun.GenSig(sdkappid, key, "xiaojun", 86400*180)
+	if err != nil {
+		fmt.Println(err.Error())
+	} else {
+		fmt.Println(sig)
+	}
+}
+```

tencentyun/TLSSigAPI.go

@@ -22,6 +22,16 @@ import (
  * userid - 用户id，限制长度为32字节，只允许包含大小写英文字母（a-zA-Z）、数字（0-9）及下划线和连词符。
  * expire - UserSig 票据的过期时间，单位是秒，比如 86400 代表生成的 UserSig 票据在一天后就无法再使用了。
  */
+
+ /**
+ * Function: Used to issue UserSig that is required by the TRTC and IM services.
+ *
+ * Parameter description:
+ * sdkappid - Application ID
+ * userid - User ID. The value can be up to 32 bytes in length and contain letters (a-z and A-Z), digits (0-9), underscores (_), and hyphens (-).
+ * key - The encryption key used to calculate usersig can be obtained from the console.
+ * expire - UserSig expiration time, in seconds. For example, 86400 indicates that the generated UserSig will expire one day after being generated.
+ */
 func GenUserSig(sdkappid int, key string, userid string, expire int) (string, error) {
 	return genSig(sdkappid, key, userid, expire, nil)
 }
@@ -56,6 +66,35 @@ func GenUserSigWithBuf(sdkappid int, key string, userid string, expire int, buf
  *  - privilegeMap == 1111 1111 == 255 代表该 userid 在该 roomid 房间内的所有功能权限。
  *  - privilegeMap == 0010 1010 == 42  代表该 userid 拥有加入房间和接收音视频数据的权限，但不具备其他权限。
  */
+
+/**
+ * Function:
+ * Used to issue PrivateMapKey that is optional for room entry.
+ * PrivateMapKey must be used together with UserSig but with more powerful permission control capabilities.
+ *  - UserSig can only control whether a UserID has permission to use the TRTC service. As long as the UserSig is correct, the user with the corresponding UserID can enter or leave any room.
+ *  - PrivateMapKey specifies more stringent permissions for a UserID, including whether the UserID can be used to enter a specific room and perform audio/video upstreaming in the room.
+ * To enable stringent PrivateMapKey permission bit verification, you need to enable permission key in TRTC console > Application Management > Application Info.
+ *
+ * Parameter description:
+ * sdkappid - Application ID
+ * userid - User ID. The value can be up to 32 bytes in length and contain letters (a-z and A-Z), digits (0-9), underscores (_), and hyphens (-).
+ * key - The encryption key used to calculate usersig can be obtained from the console.
+ * roomid - ID of the room to which the specified UserID can enter.
+ * expire - PrivateMapKey expiration time, in seconds. For example, 86400 indicates that the generated PrivateMapKey will expire one day after being generated.
+ * privilegeMap - Permission bits. Eight bits in the same byte are used as the permission switches of eight specific features:
+ *  - Bit 1: 0000 0001 = 1, permission for room creation
+ *  - Bit 2: 0000 0010 = 2, permission for room entry
+ *  - Bit 3: 0000 0100 = 4, permission for audio sending
+ *  - Bit 4: 0000 1000 = 8, permission for audio receiving
+ *  - Bit 5: 0001 0000 = 16, permission for video sending
+ *  - Bit 6: 0010 0000 = 32, permission for video receiving
+ *  - Bit 7: 0100 0000 = 64, permission for substream video sending (screen sharing)
+ *  - Bit 8: 1000 0000 = 200, permission for substream video receiving (screen sharing)
+ *  - privilegeMap == 1111 1111 == 255: Indicates that the UserID has all feature permissions of the room specified by roomid.
+ *  - privilegeMap == 0010 1010 == 42: Indicates that the UserID has only the permissions to enter the room and receive audio/video data.
+ */
+
+
 func GenPrivateMapKey(sdkappid int, key string, userid string, expire int, roomid uint32, privilegeMap uint32) (string, error) {
 	var userbuf []byte = genUserBuf(userid, sdkappid, roomid, expire, privilegeMap, 0, "")
 	return genSig(sdkappid, key, userid, expire, userbuf)
@@ -87,6 +126,33 @@ func GenPrivateMapKey(sdkappid int, key string, userid string, expire int, roomi
  *  - privilegeMap == 1111 1111 == 255 代表该 userid 在该 roomid 房间内的所有功能权限。
  *  - privilegeMap == 0010 1010 == 42  代表该 userid 拥有加入房间和接收音视频数据的权限，但不具备其他权限。
  */
+
+/**
+ * Function:
+ * Used to issue PrivateMapKey that is optional for room entry.
+ * PrivateMapKey must be used together with UserSig but with more powerful permission control capabilities.
+ *  - UserSig can only control whether a UserID has permission to use the TRTC service. As long as the UserSig is correct, the user with the corresponding UserID can enter or leave any room.
+ *  - PrivateMapKey specifies more stringent permissions for a UserID, including whether the UserID can be used to enter a specific room and perform audio/video upstreaming in the room.
+ * To enable stringent PrivateMapKey permission bit verification, you need to enable permission key in TRTC console > Application Management > Application Info.
+ *
+ * Parameter description:
+ * sdkappid - Application ID
+ * userid - User ID. The value can be up to 32 bytes in length and contain letters (a-z and A-Z), digits (0-9), underscores (_), and hyphens (-).
+ * key - The encryption key used to calculate usersig can be obtained from the console.
+ * roomstr - ID of the room to which the specified UserID can enter.
+ * expire - PrivateMapKey expiration time, in seconds. For example, 86400 indicates that the generated PrivateMapKey will expire one day after being generated.
+ * privilegeMap - Permission bits. Eight bits in the same byte are used as the permission switches of eight specific features:
+ *  - Bit 1: 0000 0001 = 1, permission for room creation
+ *  - Bit 2: 0000 0010 = 2, permission for room entry
+ *  - Bit 3: 0000 0100 = 4, permission for audio sending
+ *  - Bit 4: 0000 1000 = 8, permission for audio receiving
+ *  - Bit 5: 0001 0000 = 16, permission for video sending
+ *  - Bit 6: 0010 0000 = 32, permission for video receiving
+ *  - Bit 7: 0100 0000 = 64, permission for substream video sending (screen sharing)
+ *  - Bit 8: 1000 0000 = 200, permission for substream video receiving (screen sharing)
+ *  - privilegeMap == 1111 1111 == 255: Indicates that the UserID has all feature permissions of the room specified by roomid.
+ *  - privilegeMap == 0010 1010 == 42: Indicates that the UserID has only the permissions to enter the room and receive audio/video data.
+ */
 func GenPrivateMapKeyWithStringRoomID(sdkappid int, key string, userid string, expire int, roomStr string, privilegeMap uint32) (string, error) {
 	var userbuf []byte = genUserBuf(userid, sdkappid, 0, expire, privilegeMap, 0, roomStr)
 	return genSig(sdkappid, key, userid, expire, userbuf)
@@ -235,6 +301,7 @@ func genSig(sdkappid int, key string, identifier string, expire int, userbuf []b
 }
 
 // VerifyUserSig 检验UserSig在now时间点时是否有效
+// VerifyUserSig Check if UserSig is valid at now time
 func VerifyUserSig(sdkappid uint64, key string, userid string, usersig string, now time.Time) error {
 	sig, err := newUserSig(usersig)
 	if err != nil {
@@ -244,6 +311,7 @@ func VerifyUserSig(sdkappid uint64, key string, userid string, usersig string, n
 }
 
 // VerifyUserSigWithBuf 检验带UserBuf的UserSig在now时间点是否有效
+// VerifyUserSigWithBuf Check if UserSig with UserBuf is valid at now
 func VerifyUserSigWithBuf(sdkappid uint64, key string, userid string, usersig string, now time.Time, userbuf []byte) error {
 	sig, err := newUserSig(usersig)
 	if err != nil {