Files
mattermost/plugin/valid.go
Jesús Espino a63684fcb5 Consistent license message for all the go files (#13235)
* Consistent license message for all the go files

* Fixing the last set of unconsistencies with the license headers

* Addressing PR review comments

* Fixing busy.go and busy_test.go license header
2019-11-29 12:59:40 +01:00

40 lines
888 B
Go

// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
package plugin
import (
"regexp"
"unicode/utf8"
)
const (
MinIdLength = 3
MaxIdLength = 190
ValidIdRegex = `^[a-zA-Z0-9-_\.]+$`
)
// ValidId constrains the set of valid plugin identifiers:
// ^[a-zA-Z0-9-_\.]+
var validId *regexp.Regexp
func init() {
validId = regexp.MustCompile(ValidIdRegex)
}
// IsValidId verifies that the plugin id has a minimum length of 3, maximum length of 190, and
// contains only alphanumeric characters, dashes, underscores and periods.
//
// These constraints are necessary since the plugin id is used as part of a filesystem path.
func IsValidId(id string) bool {
if utf8.RuneCountInString(id) < MinIdLength {
return false
}
if utf8.RuneCountInString(id) > MaxIdLength {
return false
}
return validId.MatchString(id)
}