// Copyright 2024, 2025 The Forgejo Authors. All rights reserved.// SPDX-License-Identifier: MIT package forgefed import (	"database/sql"	"fmt"	"strings"	"time" 	"forgejo.org/modules/timeutil"	"forgejo.org/modules/validation") // FederationHost data type// swagger:modeltype FederationHost struct {	ID             int64                  `xorm:"pk autoincr"`	HostFqdn       string                 `xorm:"host_fqdn UNIQUE INDEX VARCHAR(255) NOT NULL"`	NodeInfo       NodeInfo               `xorm:"extends NOT NULL"`	HostPort       uint16                 `xorm:"NOT NULL DEFAULT 443"`	HostSchema     string                 `xorm:"NOT NULL DEFAULT 'https'"`	LatestActivity time.Time              `xorm:"NOT NULL"`	KeyID          sql.NullString         `xorm:"key_id UNIQUE"`	PublicKey      sql.Null[sql.RawBytes] `xorm:"BLOB"`	Created        timeutil.TimeStamp     `xorm:"created"`	Updated        timeutil.TimeStamp     `xorm:"updated"`} // Factory function for FederationHost. Created struct is asserted to be valid.func NewFederationHost(hostFqdn string, nodeInfo NodeInfo, port uint16, schema string) (FederationHost, error) {	result := FederationHost{		HostFqdn:   strings.ToLower(hostFqdn),		NodeInfo:   nodeInfo,		HostPort:   port,		HostSchema: schema,	}	if valid, err := validation.IsValid(result); !valid {		return FederationHost{}, err	}	return result, nil} // Validate collects error strings in a slice and returns thisfunc (host FederationHost) Validate() []string {	var result []string	result = append(result, validation.ValidateNotEmpty(host.HostFqdn, "HostFqdn")...)	result = append(result, validation.ValidateMaxLen(host.HostFqdn, 255, "HostFqdn")...)	result = append(result, validation.ValidateNotEmpty(host.HostPort, "HostPort")...)	result = append(result, validation.ValidateNotEmpty(host.HostSchema, "HostSchema")...)	result = append(result, host.NodeInfo.Validate()...)	if host.HostFqdn != strings.ToLower(host.HostFqdn) {		result = append(result, fmt.Sprintf("HostFqdn has to be lower case but was: %v", host.HostFqdn))	}	if !host.LatestActivity.IsZero() && host.LatestActivity.After(time.Now().Add(10*time.Minute)) {		result = append(result, fmt.Sprintf("Latest Activity cannot be in the far future: %v", host.LatestActivity))	} 	return result}