CoreSLS : Get client and server ip address

1. add : get client & server ip address feature added.

Closes https://corelab.mkcl.org/MKCLOS/coreosv3/corestudio/issues/559

routebuildermdl/routebuilder_fasthttp.go

@@ -219,7 +219,7 @@ func RestrictedHandler(c *routing.Context) error {
 		c.SetStatusCode(412)
 		return err
 	}
-	pricipalObj.ClientIP = c.RemoteIP().String()
+	// pricipalObj.ClientIP = c.RemoteIP().String()
 	commonHandler(c, true, false, false, pricipalObj)
 	return nil
 }
@@ -234,7 +234,7 @@ func RoleBasedHandler(c *routing.Context) error {
 		c.SetStatusCode(412)
 		return err
 	}
-	pricipalObj.ClientIP = c.RemoteIP().String()
+	// pricipalObj.ClientIP = c.RemoteIP().String()
 	commonHandler(c, true, true, false, pricipalObj)
 	return nil
 }
@@ -259,7 +259,7 @@ func HeavyRestrictedHandler(c *routing.Context) error {
 		c.SetStatusCode(412)
 		return err
 	}
-	pricipalObj.ClientIP = c.RemoteIP().String()
+	// pricipalObj.ClientIP = c.RemoteIP().String()
 	commonHandler(c, true, false, true, pricipalObj)
 	return nil
 }
@@ -274,7 +274,7 @@ func HeavyRoleBasedHandler(c *routing.Context) error {
 		c.SetStatusCode(412)
 		return err
 	}
-	pricipalObj.ClientIP = c.RemoteIP().String()
+	// pricipalObj.ClientIP = c.RemoteIP().String()
 	commonHandler(c, true, true, true, pricipalObj)
 	return nil
 }
@@ -323,11 +323,6 @@ func extractPricipalObject(c *routing.Context) (servicebuildermdl.Principal, err
 		return principal, errormdl.CheckErr(grperr)
 	}
 	userID, _ := claim["userId"].(string)
-	// if !ok {
-	// 	loggermdl.LogError("Unable to parse UserID from JWT Token")
-	// 	return principal, errormdl.Wrap("Unable to parse UserID from JWT Token")
-	// }
-
 	if len(userID) < 2 {
 		loggermdl.LogError("UserID length is less than 2")
 		return principal, errormdl.Wrap("UserID length is less than 2")
@@ -345,5 +340,19 @@ func extractPricipalObject(c *routing.Context) (servicebuildermdl.Principal, err
 	principal.Groups = groups
 	principal.UserID = userID
 	principal.Token = string(c.Request.Header.Peek("Authorization"))
+	// set client ip
+	principal.ClientIP = getClientIP(c)
 	return principal, nil
 }
+
+// getClientIP - returns respected header value from request header
+func getClientIP(c *routing.Context) string {
+	clientIP := string(c.Request.Header.Peek("X-Real-Ip"))
+	if clientIP == "" {
+		clientIP = string(c.Request.Header.Peek("X-Forwarded-For"))
+	}
+	if clientIP == "" {
+		clientIP = c.RemoteIP().String()
+	}
+	return clientIP
+}