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// Copyright 2023 LiveKit, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package utils
import (
"fmt"
"regexp"
"strings"
)
// rtmp urls must be of format rtmp(s)://{host}(/{path})/{app}/{stream_key}( live=1)
var rtmpRegexp = regexp.MustCompile("^(rtmps?:\\/\\/)(.*\\/)(.*\\/)(\\S*)( live=1)?$")
func RedactStreamKey(url string) (string, bool) {
match := rtmpRegexp.FindStringSubmatch(url)
if len(match) != 6 {
return url, false
}
match[4] = RedactIdentifier(match[4])
return strings.Join(match[1:], ""), true
}
func RedactIdentifier(identifier string) string {
var prefix, suffix string
for i := 3; i > 0; i-- {
if len(identifier) >= i*3 {
prefix = identifier[:i]
suffix = identifier[len(identifier)-i:]
break
}
}
return fmt.Sprintf("{%s...%s}", prefix, suffix)
}
func Redact(s, name string) string {
if s != "" {
return name
}
return ""
}