utils

Documentation

Index

• Constants
• Variables
• func CacheBust() string
• func ClearCookie(name string, w http.ResponseWriter, r *http.Request)
• func EnsureNoOpenRedirect(redirect string) (string, error)
• func FetchTags(backend http.Handler, uri *url.URL, kinds ...string) (result []html.Node)
• func GetRemoteAddress(ctx context.Context) *netip.AddrPort
• func GetRequestAddress(r *http.Request, clientHeader string) netip.AddrPort
• func GetRequestScheme(r *http.Request) string
• func MakeReverseProxy(target string, goDns bool, dialTimeout time.Duration) (*httputil.ReverseProxy, error)
• func NewServer(handler http.Handler, tlsConfig *tls.Config) *http.Server
• func SelectHTTPHandler(backends map[string]http.Handler, host string) http.Handler
• func SetCookie(name, value string, expiry time.Time, w http.ResponseWriter, r *http.Request)
• func SetRemoteAddress(r *http.Request, addrPort netip.AddrPort) *http.Request
• type Cache
  • func CacheDirectory(directory string) (Cache, error)
  • func CachePrefix(c Cache, prefix string) Cache
• type DNSBL
  • func NewDNSBL(target string, resolver *net.Resolver) *DNSBL
  • func (bl DNSBL) Lookup(ctx context.Context, ip net.IP) (DNSBLResponse, error)
• type DNSBLResponse
  • func (r DNSBLResponse) Bad() bool
• type DecayMap
  • func NewDecayMap[K comparable, V any]() *DecayMap[K, V]
  • func (m *DecayMap[K, V]) Decay()
  • func (m *DecayMap[K, V]) Get(key K) (V, bool)
  • func (m *DecayMap[K, V]) Set(key K, value V, ttl time.Duration)
• type DecayMapEntry
• type RADb
  • func NewRADb() (*RADb, error)
  • func (db *RADb) FetchASNets(asn int) (result []net.IPNet, err error)
  • func (db *RADb) FetchIPInfo(ip net.IP) (result []string, err error)
• type Strings
  • func NewStrings[T ~map[string]string](v T) Strings
  • func (s Strings) Get(value string) template.HTML
• type TLSFingerprint
  • func GetTLSFingerprint(r *http.Request) *TLSFingerprint
  • func (f *TLSFingerprint) JA3N() *TLSFingerprintJA3N
  • func (f *TLSFingerprint) JA4() *TLSFingerprintJA4
• type TLSFingerprintJA3N
  • func (f TLSFingerprintJA3N) String() string
• type TLSFingerprintJA4
  • func (f TLSFingerprintJA4) String() string
• type UnixRoundTripper
  • func (t UnixRoundTripper) RoundTrip(req *http.Request) (*http.Response, error)

Constants

const (
	ResponseGood    = DNSBLResponse(0)
	ResponseUnknown = DNSBLResponse(255)
)

const RADBServer = "whois.radb.net:43"

Variables

var DefaultCookiePrefix = ".go-away-"

var ErrExpired = errors.New("key expired")

Functions

func CacheBust

func CacheBust() string

func ClearCookie

func ClearCookie(name string, w http.ResponseWriter, r *http.Request)

func EnsureNoOpenRedirect

func EnsureNoOpenRedirect(redirect string) (string, error)

func FetchTags

func FetchTags(backend http.Handler, uri *url.URL, kinds ...string) (result []html.Node)

func GetRemoteAddress

func GetRemoteAddress(ctx context.Context) *netip.AddrPort

func GetRequestAddress

func GetRequestAddress(r *http.Request, clientHeader string) netip.AddrPort

func GetRequestScheme

func GetRequestScheme(r *http.Request) string

func MakeReverseProxy

func MakeReverseProxy(target string, goDns bool, dialTimeout time.Duration) (*httputil.ReverseProxy, error)

func NewServer

func NewServer(handler http.Handler, tlsConfig *tls.Config) *http.Server

func SelectHTTPHandler

func SelectHTTPHandler(backends map[string]http.Handler, host string) http.Handler

func SetCookie

func SetCookie(name, value string, expiry time.Time, w http.ResponseWriter, r *http.Request)

func SetRemoteAddress

func SetRemoteAddress(r *http.Request, addrPort netip.AddrPort) *http.Request

Types

type Cache

type Cache interface {
	Get(key string, maxAge time.Duration) ([]byte, error)

	Set(key string, value []byte) error
}

func CacheDirectory

func CacheDirectory(directory string) (Cache, error)

func CachePrefix

func CachePrefix(c Cache, prefix string) Cache

type DNSBL

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

func NewDNSBL

func NewDNSBL(target string, resolver *net.Resolver) *DNSBL

func (DNSBL) Lookup

func (bl DNSBL) Lookup(ctx context.Context, ip net.IP) (DNSBLResponse, error)

type DNSBLResponse

type DNSBLResponse uint8

func (DNSBLResponse) Bad

func (r DNSBLResponse) Bad() bool

type DecayMap

type DecayMap[K comparable, V any] struct {
	// contains filtered or unexported fields
}

func NewDecayMap

func NewDecayMap[K comparable, V any]() *DecayMap[K, V]

func (*DecayMap[K, V]) Decay

func (m *DecayMap[K, V]) Decay()

func (*DecayMap[K, V]) Get

func (m *DecayMap[K, V]) Get(key K) (V, bool)

func (*DecayMap[K, V]) Set

func (m *DecayMap[K, V]) Set(key K, value V, ttl time.Duration)

type DecayMapEntry

type DecayMapEntry[V any] struct {
	Value V
	// contains filtered or unexported fields
}

type RADb

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

func NewRADb

func NewRADb() (*RADb, error)

func (*RADb) FetchASNets

func (db *RADb) FetchASNets(asn int) (result []net.IPNet, err error)

func (*RADb) FetchIPInfo

func (db *RADb) FetchIPInfo(ip net.IP) (result []string, err error)

type Strings

type Strings map[string]string

func NewStrings

func NewStrings[T ~map[string]string](v T) Strings

func (Strings) Get

func (s Strings) Get(value string) template.HTML

type TLSFingerprint

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

func GetTLSFingerprint

func GetTLSFingerprint(r *http.Request) *TLSFingerprint

func (*TLSFingerprint) JA3N

func (f *TLSFingerprint) JA3N() *TLSFingerprintJA3N

func (*TLSFingerprint) JA4

func (f *TLSFingerprint) JA4() *TLSFingerprintJA4

type TLSFingerprintJA3N

type TLSFingerprintJA3N [md5.Size]byte

func (TLSFingerprintJA3N) String

func (f TLSFingerprintJA3N) String() string

type TLSFingerprintJA4

type TLSFingerprintJA4 struct {
	A [10]byte
	B [6]byte
	C [6]byte
}

func (TLSFingerprintJA4) String

func (f TLSFingerprintJA4) String() string

type UnixRoundTripper

type UnixRoundTripper struct {
	Transport *http.Transport
}

UnixRoundTripper https://github.com/oauth2-proxy/oauth2-proxy/blob/master/pkg/upstream/http.go#L124

func (UnixRoundTripper) RoundTrip

func (t UnixRoundTripper) RoundTrip(req *http.Request) (*http.Response, error)

RoundTrip set bare minimum stuff