fix: the bug when htpasswd has multiple creds

earlier, when you had more than one creds in htpasswd file separated by
newline, it used to only read the first cred in the file and ignore the
rest.

pkg/api/auth.go

@@ -141,15 +141,16 @@ func basicAuthHandler(c *Controller) mux.MiddlewareFunc {
 			if err != nil {
 				panic(err)
 			}
+			defer f.Close()
 
-			for {
-				r := bufio.NewReader(f)
-				line, err := r.ReadString('\n')
-				if err != nil {
-					break
+			scanner := bufio.NewScanner(f)
+
+			for scanner.Scan() {
+				line := scanner.Text()
+				if strings.Contains(line, ":") {
+					tokens := strings.Split(scanner.Text(), ":")
+					credMap[tokens[0]] = tokens[1]
 				}
-				tokens := strings.Split(line, ":")
-				credMap[tokens[0]] = tokens[1]
 			}
 		}
 	}