httplib

Documentation

Overview

Package httplib implements common utility functions for writing classic HTTP handlers

Package httplib implements common utility functions for writing classic HTTP handlers

Index

• func ConvertResponse(re *roundtrip.Response, err error) (*roundtrip.Response, error)
• func MakeHandler(fn HandlerFunc) httprouter.Handle
• func MakeHandlerWithErrorWriter(fn HandlerFunc, errWriter ErrorWriter) httprouter.Handle
• func MakeSecurityHeaderHandler(h http.Handler) http.Handler
• func MakeStdHandlerWithErrorWriter(fn StdHandlerFunc, errWriter ErrorWriter) http.HandlerFunc
• func MakeTracingHandler(h http.Handler, component string) http.Handler
• func MakeTracingMiddleware(component string) func(http.Handler) http.Handler
• func OriginLocalRedirectURI(redirectURL string) (string, error)
• func ParseBool(q url.Values, name string) (bool, bool, error)
• func ReadJSON(r *http.Request, val interface{}) error
• func RewritePaths(next http.Handler, rewrites ...RewritePair) http.Handler
• func SetAppLaunchContentSecurityPolicy(h http.Header, applicationURL string)
• func SetCacheHeaders(h http.Header, maxAge time.Duration)
• func SetDefaultSecurityHeaders(h http.Header)
• func SetIndexContentSecurityPolicy(h http.Header, cfg proto.Features, urlPath string)
• func SetNoCacheHeaders(h http.Header)
• func SetRedirectPageContentSecurityPolicy(h http.Header, scriptSrc string)
• func SetScriptHeaders(h http.Header)
• func SetWebConfigHeaders(h http.Header)
• func WithCSRFProtection(fn HandlerFunc) httprouter.Handle
• func WrapSyscallConn(rawConn, newConn net.Conn) net.Conn
• type ErrorWriter
• type HandlerFunc
• type ResponseStatusRecorder
  • func NewResponseStatusRecorder(w http.ResponseWriter) *ResponseStatusRecorder
  • func (r *ResponseStatusRecorder) Flush()
  • func (r *ResponseStatusRecorder) Hijack() (net.Conn, *bufio.ReadWriter, error)
  • func (r *ResponseStatusRecorder) Status() int
  • func (r *ResponseStatusRecorder) WriteHeader(status int)
• type RewritePair
  • func Rewrite(in, out string) RewritePair
• type StdHandlerFunc
• type TLSCreds
  • func (c *TLSCreds) ClientHandshake(ctx context.Context, authority string, rawConn net.Conn) (_ net.Conn, _ credentials.AuthInfo, err error)
  • func (c *TLSCreds) Clone() credentials.TransportCredentials
  • func (c TLSCreds) Info() credentials.ProtocolInfo
  • func (c *TLSCreds) OverrideServerName(serverNameOverride string) error
  • func (c *TLSCreds) ServerHandshake(rawConn net.Conn) (net.Conn, credentials.AuthInfo, error)

Functions

func ConvertResponse

func ConvertResponse(re *roundtrip.Response, err error) (*roundtrip.Response, error)

ConvertResponse converts http error to internal error type based on HTTP response code and HTTP body contents

func MakeHandler

func MakeHandler(fn HandlerFunc) httprouter.Handle

MakeHandler returns a new httprouter.Handle func from a handler func

func MakeHandlerWithErrorWriter

func MakeHandlerWithErrorWriter(fn HandlerFunc, errWriter ErrorWriter) httprouter.Handle

MakeHandlerWithErrorWriter returns a httprouter.Handle from the HandlerFunc, and sends all errors to ErrorWriter.

func MakeSecurityHeaderHandler

func MakeSecurityHeaderHandler(h http.Handler) http.Handler

MakeSecurityHeaderHandler returns a new httprouter.Handle func that wraps the provided handler func with one that will ensure the headers from SetDefaultSecurityHeaders are applied.

func MakeStdHandlerWithErrorWriter

func MakeStdHandlerWithErrorWriter(fn StdHandlerFunc, errWriter ErrorWriter) http.HandlerFunc

MakeStdHandlerWithErrorWriter returns a http.HandlerFunc from the StdHandlerFunc, and sends all errors to ErrorWriter.

func MakeTracingHandler

func MakeTracingHandler(h http.Handler, component string) http.Handler

MakeTracingHandler returns a new httprouter.Handle func that wraps the provided handler func with one that will add a tracing span for each request.

func MakeTracingMiddleware

func MakeTracingMiddleware(component string) func(http.Handler) http.Handler

MakeTracingMiddleware returns an HTTP middleware that makes tracing handlers.

func OriginLocalRedirectURI

func OriginLocalRedirectURI(redirectURL string) (string, error)

OriginLocalRedirectURI will take an incoming URL including optionally the host and scheme and return the URI associated with the URL. Additionally, it will ensure that the URI does not include any techniques potentially used to redirect to a different origin.

func ParseBool

func ParseBool(q url.Values, name string) (bool, bool, error)

ParseBool will parse boolean variable from url query returns value, ok, error

func ReadJSON

func ReadJSON(r *http.Request, val interface{}) error

ReadJSON reads HTTP json request and unmarshals it into passed interface{} obj

func RewritePaths

func RewritePaths(next http.Handler, rewrites ...RewritePair) http.Handler

RewritePaths creates a middleware that rewrites paths in incoming request

func SetAppLaunchContentSecurityPolicy

func SetAppLaunchContentSecurityPolicy(h http.Header, applicationURL string)

SetAppLaunchContentSecurityPolicy sets the Content-Security-Policy header for /web/launch

func SetCacheHeaders

func SetCacheHeaders(h http.Header, maxAge time.Duration)

SetCacheHeaders tells proxies and browsers to cache the content

func SetDefaultSecurityHeaders

func SetDefaultSecurityHeaders(h http.Header)

SetDefaultSecurityHeaders adds headers that should generally be considered safe defaults. It is expected that all responses should be able to add these headers without negative impact.

func SetIndexContentSecurityPolicy

func SetIndexContentSecurityPolicy(h http.Header, cfg proto.Features, urlPath string)

SetIndexContentSecurityPolicy sets the Content-Security-Policy header for main index.html page

func SetNoCacheHeaders

func SetNoCacheHeaders(h http.Header)

SetNoCacheHeaders tells proxies and browsers do not cache the content

func SetRedirectPageContentSecurityPolicy

func SetRedirectPageContentSecurityPolicy(h http.Header, scriptSrc string)

func SetScriptHeaders

func SetScriptHeaders(h http.Header)

SetScriptHeaders sets headers for the teleport install script

func SetWebConfigHeaders

func SetWebConfigHeaders(h http.Header)

SetWebConfigHeaders sets headers for webConfig.js

func WithCSRFProtection

func WithCSRFProtection(fn HandlerFunc) httprouter.Handle

WithCSRFProtection ensures that request to unauthenticated API is checked against CSRF attacks

func WrapSyscallConn

func WrapSyscallConn(rawConn, newConn net.Conn) net.Conn

WrapSyscallConn tries to wrap rawConn and newConn into a net.Conn that implements syscall.Conn. rawConn will be used to support syscall, and newConn will be used for read/write.

This function returns newConn if rawConn doesn't implement syscall.Conn.

Types

type ErrorWriter

type ErrorWriter func(w http.ResponseWriter, err error)

ErrorWriter is a function responsible for writing the error into response body.

type HandlerFunc

type HandlerFunc func(w http.ResponseWriter, r *http.Request, p httprouter.Params) (interface{}, error)

HandlerFunc specifies HTTP handler function that returns error

type ResponseStatusRecorder

type ResponseStatusRecorder struct {
	http.ResponseWriter
	// contains filtered or unexported fields
}

ResponseStatusRecorder is an http.ResponseWriter that records the response status code.

func NewResponseStatusRecorder

func NewResponseStatusRecorder(w http.ResponseWriter) *ResponseStatusRecorder

NewResponseStatusRecorder makes and returns a ResponseStatusRecorder.

func (*ResponseStatusRecorder) Flush

func (r *ResponseStatusRecorder) Flush()

Flush optionally flushes the inner ResponseWriter if it supports that. Otherwise, Flush is a noop.

Flush is optionally used by github.com/gravitational/oxy/forward to flush pending data on streaming HTTP responses (like streaming pod logs).

Without this, oxy/forward will handle streaming responses by accumulating ~32kb of response in a buffer before flushing it.

func (*ResponseStatusRecorder) Hijack

func (r *ResponseStatusRecorder) Hijack() (net.Conn, *bufio.ReadWriter, error)

Hijack implements the http.Hijacker interface.

func (*ResponseStatusRecorder) Status

func (r *ResponseStatusRecorder) Status() int

Status returns the recorded status after WriteHeader is called, or StatusOK if WriteHeader hasn't been called explicitly.

func (*ResponseStatusRecorder) WriteHeader

func (r *ResponseStatusRecorder) WriteHeader(status int)

WriteHeader sends an HTTP response header with the provided status code and save the status code in the recorder.

type RewritePair

type RewritePair struct {
	// Expr is matching expression
	Expr *regexp.Regexp
	// Replacement is replacement
	Replacement string
}

RewritePair is a rewrite expression

func Rewrite

func Rewrite(in, out string) RewritePair

Rewrite creates a rewrite pair, panics if in epxression is not a valid regular expressoin

type StdHandlerFunc

type StdHandlerFunc func(w http.ResponseWriter, r *http.Request) (interface{}, error)

StdHandlerFunc specifies HTTP handler function that returns error

type TLSCreds

type TLSCreds struct {
	// TLS configuration
	Config *tls.Config
}

TLSCreds is the credentials required for authenticating a connection using TLS.

func (*TLSCreds) ClientHandshake

func (c *TLSCreds) ClientHandshake(ctx context.Context, authority string, rawConn net.Conn) (_ net.Conn, _ credentials.AuthInfo, err error)

ClientHandshake callback is called to perform client handshake on the tls conn

func (*TLSCreds) Clone

func (c *TLSCreds) Clone() credentials.TransportCredentials

Clone clones transport credentials

func (TLSCreds) Info

func (c TLSCreds) Info() credentials.ProtocolInfo

Info returns protocol info

func (*TLSCreds) OverrideServerName

func (c *TLSCreds) OverrideServerName(serverNameOverride string) error

OverrideServerName overrides server name in the TLS config

func (*TLSCreds) ServerHandshake

func (c *TLSCreds) ServerHandshake(rawConn net.Conn) (net.Conn, credentials.AuthInfo, error)

ServerHandshake callback is called to perform server TLS handshake this wrapper makes sure that the connection is already tls and handshake has been performed