web

package
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 Go to latest Published: Jul 12, 2018 License: Apache-2.0 Imports: 46 Imported by: 0

Documentation

Overview

Package web implements web proxy handler that provides web interface to view and connect to teleport nodes

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func ClearSession added in v1.0.0 

func ClearSession(w http.ResponseWriter) error

func ConstructSSHResponse added in v1.0.0 

func ConstructSSHResponse(response AuthParams) (*url.URL, error)

ConstructSSHResponse creates a special SSH response for SSH login method that encodes everything using the client's secret key 

func CreateSignupLink(token string) string

CreateSignupLink generates and returns a URL which is given to a new user to complete registration with Teleport via Web UI

func EncodeCookie 

func EncodeCookie(user, sid string) (string, error)

func NewStaticFileSystem added in v1.2.6 

func NewStaticFileSystem(debugMode bool) (http.FileSystem, error)

NewStaticFileSystem returns the initialized implementation of http.FileSystem interface which can be used to serve Teleport Proxy Web UI

If 'debugMode' is true, it will load the web assets from the same git repo directory where the executable is, otherwise it will load them from the embedded zip archive.

func SetPlugin 

func SetPlugin(p Plugin)

SetPlugin sets plugin for the web handler

func SetSession added in v1.0.0 

func SetSession(w http.ResponseWriter, user, sid string) error

Types

type AuthParams 

type AuthParams struct {
	// Username is authenticated teleport username
	Username string
	// Identity contains validated OIDC identity
	Identity services.ExternalIdentity
	// Web session will be generated by auth server if requested in OIDCAuthRequest
	Session services.WebSession
	// Cert will be generated by certificate authority
	Cert []byte
	// HostSigners is a list of signing host public keys
	// trusted by proxy, used in console login
	HostSigners []services.CertAuthority
	// ClientRedirectURL is a URL to redirect client to
	ClientRedirectURL string
}

AuthParams are used to construct redirect URL containing auth information back to tsh login

type ClusterHandler 

type ClusterHandler func(w http.ResponseWriter, r *http.Request, p httprouter.Params, ctx *SessionContext, site reversetunnel.RemoteSite) (interface{}, error)

ClusterHandler is a authenticated handler that is called for some existing remote cluster

type Config added in v1.0.0 

type Config struct {
	// Proxy is a reverse tunnel proxy that handles connections
	// to various sites
	Proxy reversetunnel.Server
	// AuthServers is a list of auth servers this proxy talks to
	AuthServers utils.NetAddr
	// DomainName is a domain name served by web handler
	DomainName string
	// ProxyClient is a client that authenticated as proxy
	ProxyClient auth.ClientI
	// DisableUI allows to turn off serving web based UI
	DisableUI bool
	// ProxySSHAddr points to the SSH address of the proxy
	ProxySSHAddr utils.NetAddr
	// ProxyWebAddr points to the web (HTTPS) address of the proxy
	ProxyWebAddr utils.NetAddr
}

Config represents web handler configuration parameters

type ContextHandler 

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

ContextHandler is a handler called with the auth context, what means it is authenticated and ready to work

type CreateSessionResponse added in v1.0.0 

type CreateSessionResponse struct {
	// Type is token type (bearer)
	Type string `json:"type"`
	// Token value
	Token string `json:"token"`
	// ExpiresIn sets seconds before this token is not valid
	ExpiresIn int `json:"expires_in"`
}

CreateSessionResponse returns OAuth compabible data about access token: https://tools.ietf.org/html/rfc6749

func NewSessionResponse added in v1.0.0 

func NewSessionResponse(ctx *SessionContext) (*CreateSessionResponse, error)

type Handler added in v1.0.0 

type Handler struct {
	sync.Mutex
	httprouter.Router
	// contains filtered or unexported fields
}

Handler is HTTP web proxy handler

func (*Handler) AuthenticateRequest added in v1.0.0 

func (h *Handler) AuthenticateRequest(w http.ResponseWriter, r *http.Request, checkBearerToken bool) (*SessionContext, error)

AuthenticateRequest authenticates request using combination of a session cookie and bearer token

func (*Handler) Close added in v1.0.0 

func (h *Handler) Close() error

Close closes associated session cache operations

func (*Handler) GetProxyClient 

func (h *Handler) GetProxyClient() auth.ClientI

GetProxyClient returns authenticated auth server client

func (*Handler) ProxyHostPort 

func (h *Handler) ProxyHostPort() string

ProxyHostPort returns the address of the proxy server using --proxy notation, i.e. "localhost:8030,8023"

func (*Handler) String added in v1.0.0 

func (h *Handler) String() string

func (*Handler) WithAuth 

func (h *Handler) WithAuth(fn ContextHandler) httprouter.Handle

WithAuth ensures that request is authenticated

func (*Handler) WithClusterAuth 

func (h *Handler) WithClusterAuth(fn ClusterHandler) httprouter.Handle

WithClusterAuth ensures that request is authenticated and is issued for existing cluster

type HandlerOption added in v1.0.0 

type HandlerOption func(h *Handler) error

HandlerOption is a functional argument - an option that can be passed to NewHandler function

func SetSessionStreamPollPeriod added in v1.0.0 

func SetSessionStreamPollPeriod(period time.Duration) HandlerOption

SetSessionStreamPollPeriod sets polling period for session streams

type NodeProvider 

type NodeProvider interface {
	GetNodes(namespace string) ([]services.Server, error)
}

NodeProvider is a provider of nodes for namespace

type Plugin 

type Plugin interface {
	// AddHandlers adds handlers to the web API handler
	AddHandlers(h *Handler)
}

Plugin is API Server extension setter if set, it will add handler methods during web handler initialization

func GetPlugin 

func GetPlugin() Plugin

GetPlugin returns web API plugin that

type ResourceMap added in v1.2.6 

type ResourceMap map[string]*zip.File

func (ResourceMap) Open added in v1.2.6 

func (rm ResourceMap) Open(name string) (http.File, error)

type RewritingHandler 

type RewritingHandler struct {
	http.Handler
	// contains filtered or unexported fields
}

func NewHandler added in v1.0.0 

func NewHandler(cfg Config, opts ...HandlerOption) (*RewritingHandler, error)

NewHandler returns a new instance of web proxy handler

func (*RewritingHandler) Close 

func (r *RewritingHandler) Close() error

func (*RewritingHandler) GetHandler 

func (r *RewritingHandler) GetHandler() *Handler

type SessionContext added in v1.0.0 

type SessionContext struct {
	sync.Mutex
	*log.Entry
	// contains filtered or unexported fields
}

SessionContext is a context associated with users' web session, it stores connected client that persists between requests for example to avoid connecting to the auth server on every page hit

func (*SessionContext) AddClosers added in v1.0.0 

func (c *SessionContext) AddClosers(closers ...io.Closer)

func (*SessionContext) Close added in v1.0.0 

func (c *SessionContext) Close() error

Close cleans up connections associated with requests

func (*SessionContext) ExtendWebSession added in v1.0.0 

func (c *SessionContext) ExtendWebSession() (services.WebSession, error)

ExtendWebSession creates a new web session for this user based on the previous session

func (*SessionContext) GetAgent added in v1.0.0 

func (c *SessionContext) GetAgent() (auth.AgentCloser, error)

GetAgent returns agent that can we used to answer challenges for the web to ssh connection

func (*SessionContext) GetClient added in v1.0.0 

func (c *SessionContext) GetClient() (*auth.TunClient, error)

GetClient returns the client connected to the auth server

func (*SessionContext) GetUser added in v1.0.0 

func (c *SessionContext) GetUser() string

GetUser returns the authenticated teleport user

func (*SessionContext) GetUserClient 

func (c *SessionContext) GetUserClient(site reversetunnel.RemoteSite) (auth.ClientI, error)

GetUserClient will return an auth.ClientI with the role of the user at the requested site. If the site is local a client with the users local role is returned. If the site is remote a client with the users remote role is returned.

func (*SessionContext) GetWebSession added in v1.0.0 

func (c *SessionContext) GetWebSession() services.WebSession

GetWebSession returns a web session

func (*SessionContext) Invalidate added in v1.0.0 

func (c *SessionContext) Invalidate() error

func (*SessionContext) RemoveCloser 

func (c *SessionContext) RemoveCloser(closer io.Closer)

func (*SessionContext) TransferClosers added in v1.0.0 

func (c *SessionContext) TransferClosers() []io.Closer

func (*SessionContext) UpdateSessionTerminal added in v1.0.0 

func (c *SessionContext) UpdateSessionTerminal(
	siteAPI auth.ClientI, namespace string, sessionID session.ID, params session.TerminalParams) error

UpdateSessionTerminal is called when a browser window is resized and we need to update PTY on the server side

type SessionCookie added in v1.0.0 

type SessionCookie struct {
	User string `json:"user"`
	SID  string `json:"sid"`
}

SessionCookie stores information about active user and session

func DecodeCookie 

func DecodeCookie(b string) (*SessionCookie, error)

type TerminalHandler 

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

TerminalHandler connects together an SSH session with a web-based terminal via a web socket.

func NewTerminal 

func NewTerminal(req TerminalRequest, provider NodeProvider, ctx *SessionContext) (*TerminalHandler, error)

newTerminal creates a web-based terminal based on WebSockets and returns a new TerminalHandler

func (*TerminalHandler) Close 

func (t *TerminalHandler) Close() error

func (*TerminalHandler) Run 

func (t *TerminalHandler) Run(w http.ResponseWriter, r *http.Request)

Run creates a new websocket connection to the SSH server and runs the "loop" piping the input/output of the SSH session into the js-based terminal.

type TerminalRequest 

type TerminalRequest struct {
	// Server describes a server to connect to (serverId|hostname[:port])
	Server string `json:"server_id"`
	// User is linux username to connect as
	Login string `json:"login"`
	// Term sets PTY params like width and height
	Term session.TerminalParams `json:"term"`
	// SessionID is a teleport session ID to join as
	SessionID session.ID `json:"sid"`
	// Namespace is node namespace
	Namespace string `json:"namespace"`
	// Proxy server address
	ProxyHostPort string `json:"-"`
	// Remote cluster name
	Cluster string `json:"-"`
	// InteractiveCommand is a command to execute
	InteractiveCommand []string `json:"-"`
}

TerminalRequest describes a request to crate a web-based terminal to a remote SSH server

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