fingerprint

type ClientHints struct {
	// Low-entropy hints (always sent by Chrome)
	UA         string // Sec-Ch-Ua
	UAMobile   string // Sec-Ch-Ua-Mobile
	UAPlatform string // Sec-Ch-Ua-Platform

	// High-entropy hints (only sent after Accept-CH)
	UAArch            string // Sec-Ch-Ua-Arch
	UABitness         string // Sec-Ch-Ua-Bitness
	UAFullVersionList string // Sec-Ch-Ua-Full-Version-List
	UAModel           string // Sec-Ch-Ua-Model
	UAPlatformVersion string // Sec-Ch-Ua-Platform-Version
}

type FetchDest string

type FetchMode string

type FetchSite string

type HTTP2Settings struct {
	HeaderTableSize      uint32
	EnablePush           bool
	MaxConcurrentStreams uint32
	InitialWindowSize    uint32
	MaxFrameSize         uint32
	MaxHeaderListSize    uint32
	// Window update and stream settings
	ConnectionWindowUpdate uint32
	StreamWeight           uint16 // Chrome uses 256
	StreamExclusive        bool
}

type HeaderCoherence struct {
	// contains filtered or unexported fields
}

type PlatformInfo struct {
	UserAgentOS        string // e.g., "(Windows NT 10.0; Win64; x64)" or "(X11; Linux x86_64)"
	Platform           string // e.g., "Windows", "Linux", "macOS"
	Arch               string // e.g., "x86", "arm"
	PlatformVersion    string // e.g., "10.0.0", "6.12.0", "14.7.0"
	FirefoxUserAgentOS string // Firefox has slightly different format
}

type Preset struct {
	Name                 string
	ClientHelloID        tls.ClientHelloID // For TCP/TLS (HTTP/1.1, HTTP/2)
	PSKClientHelloID     tls.ClientHelloID // For TCP/TLS with PSK (session resumption)
	QUICClientHelloID    tls.ClientHelloID // For QUIC/HTTP/3 (different TLS extensions)
	QUICPSKClientHelloID tls.ClientHelloID // For QUIC/HTTP/3 with PSK (session resumption)
	UserAgent            string
	Headers              map[string]string
	HTTP2Settings        HTTP2Settings
	SupportHTTP3         bool
}

type RequestContext struct {
	// Mode is the fetch mode (navigate, cors, no-cors, same-origin)
	Mode FetchMode
	// Dest is the resource destination type
	Dest FetchDest
	// Site is the relationship between request origin and target
	Site FetchSite
	// IsUserTriggered indicates if the request was user-initiated (affects Sec-Fetch-User)
	IsUserTriggered bool
	// Referrer is the page that initiated the request (for Sec-Fetch-Site calculation)
	Referrer string
	// TargetURL is the URL being requested
	TargetURL string
}

type SecFetchHeaders struct {
	Site string
	Mode string
	Dest string
	User string // "?1" for user-triggered, empty otherwise
}