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// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
package model
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)
}
// IsValidPluginId 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 IsValidPluginId(id string) bool {
if utf8.RuneCountInString(id) < MinIdLength {
return false
}
if utf8.RuneCountInString(id) > MaxIdLength {
return false
}
return validId.MatchString(id)
}
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