mattermost-plugin-bridge-xmpp/server/model/strings.go

40 lines
1.1 KiB
Go

package model
import "strings"
// sanitizeShareName creates a valid ShareName matching the regex: ^[a-z0-9]+([a-z\-\_0-9]+|(__)?)[a-z0-9]*$
func SanitizeShareName(name string) string {
// Convert to lowercase and replace spaces with hyphens
shareName := strings.ToLower(name)
shareName = strings.ReplaceAll(shareName, " ", "-")
// Remove any characters that aren't lowercase letters, numbers, hyphens, or underscores
var validShareName strings.Builder
for _, r := range shareName {
if (r >= 'a' && r <= 'z') || (r >= '0' && r <= '9') || r == '-' || r == '_' {
validShareName.WriteRune(r)
}
}
result := validShareName.String()
if result == "" {
return "matrixbridge" // fallback if no valid characters
}
// Ensure it starts with alphanumeric
for result != "" && (result[0] == '-' || result[0] == '_') {
result = result[1:]
}
// Ensure it ends with alphanumeric
for result != "" && (result[len(result)-1] == '-' || result[len(result)-1] == '_') {
result = result[:len(result)-1]
}
// Final fallback check
if result == "" {
return "matrixbridge"
}
return result
}