Charon/backend/internal/models/proxy_host.go

package models

import (
	"time"
)

// ProxyHost represents a reverse proxy configuration.
type ProxyHost struct {
	ID                   uint            `json:"-" gorm:"primaryKey"`
	UUID                 string          `json:"uuid" gorm:"uniqueIndex;not null"`
	Name                 string          `json:"name" gorm:"index"`
	DomainNames          string          `json:"domain_names" gorm:"not null;index"` // Comma-separated list
	ForwardScheme        string          `json:"forward_scheme" gorm:"default:http"`
	ForwardHost          string          `json:"forward_host" gorm:"not null;index"`
	ForwardPort          int             `json:"forward_port" gorm:"not null"`
	SSLForced            bool            `json:"ssl_forced" gorm:"default:false"`
	HTTP2Support         bool            `json:"http2_support" gorm:"default:true"`
	HSTSEnabled          bool            `json:"hsts_enabled" gorm:"default:false"`
	HSTSSubdomains       bool            `json:"hsts_subdomains" gorm:"default:false"`
	BlockExploits        bool            `json:"block_exploits" gorm:"default:true"`
	WebsocketSupport     bool            `json:"websocket_support" gorm:"default:false"`
	Application          string          `json:"application" gorm:"default:none"` // none, plex, jellyfin, emby, homeassistant, nextcloud, vaultwarden
	Enabled              bool            `json:"enabled" gorm:"default:true;index"`
	CertificateID        *uint           `json:"certificate_id" gorm:"index"`
	Certificate          *SSLCertificate `json:"certificate" gorm:"foreignKey:CertificateID"`
	AccessListID         *uint           `json:"access_list_id" gorm:"index"`
	AccessList           *AccessList     `json:"access_list" gorm:"foreignKey:AccessListID"`
	Locations            []Location      `json:"locations" gorm:"foreignKey:ProxyHostID;constraint:OnDelete:CASCADE"`
	AdvancedConfig       string          `json:"advanced_config" gorm:"type:text"`
	AdvancedConfigBackup string          `json:"advanced_config_backup" gorm:"type:text"`

	// Forward Auth / User Gateway settings
	// When enabled, Caddy will use forward_auth to verify user access via Charon
	ForwardAuthEnabled bool `json:"forward_auth_enabled" gorm:"default:false"`

	// WAF override - when true, disables WAF for this specific host
	WAFDisabled bool `json:"waf_disabled" gorm:"default:false"`

	// Security Headers Configuration
	// Either reference a profile OR use inline settings
	SecurityHeaderProfileID *uint                  `json:"security_header_profile_id" gorm:"index"`
	SecurityHeaderProfile   *SecurityHeaderProfile `json:"security_header_profile" gorm:"foreignKey:SecurityHeaderProfileID"`

	// Inline security header settings (used when no profile is selected)
	// These override profile settings if both are set
	SecurityHeadersEnabled bool   `json:"security_headers_enabled" gorm:"default:true"`
	SecurityHeadersCustom  string `json:"security_headers_custom" gorm:"type:text"` // JSON for custom headers

	// EnableStandardHeaders controls whether standard proxy headers are added
	// Default: true for NEW hosts, false for EXISTING hosts (via migration/seed update)
	// When true: Adds X-Real-IP, X-Forwarded-Proto, X-Forwarded-Host, X-Forwarded-Port
	// When false: Old behavior (headers only with WebSocket or application-specific)
	// X-Forwarded-For is handled natively by Caddy (not explicitly set)
	EnableStandardHeaders *bool `json:"enable_standard_headers,omitempty" gorm:"default:true"`

	// DNS Challenge configuration
	DNSProviderID   *uint        `json:"dns_provider_id,omitempty" gorm:"index"`
	DNSProvider     *DNSProvider `json:"dns_provider,omitempty" gorm:"foreignKey:DNSProviderID"`
	UseDNSChallenge bool         `json:"use_dns_challenge" gorm:"default:false"`

	CreatedAt time.Time `json:"created_at"`
	UpdatedAt time.Time `json:"updated_at"`
}