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connector: fix path that connectors listen on

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When Dex uses a non-root issuer URL, it current assumes that all
path prefixes will be trimmed by an upstream proxy (e.g. nginx).
This means that all paths rendered in HTML will be absolute to the
prefix, but the handlers still listen at the root.

Connectors are currently the only component that registers at a
non-root URL. Make this conform with the rest of Dex by having the
server determine the path the connector listens as rather than the
connector itself.
This commit is contained in:
Eric Chiang 2016-07-25 12:37:24 -07:00
parent 216d26913f
commit 8216a3d992
7 changed files with 20 additions and 16 deletions
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6
connector/connector_ldap.go
View file

@ -251,9 +251,9 @@ func (c *LDAPConnector) LoginURL(sessionKey, prompt string) (string, error) {
return path.Join(c.namespace.Path, "login") + "?" + enc, nil
}
func (c *LDAPConnector) Register(mux *http.ServeMux, errorURL url.URL) {
route := path.Join(c.namespace.Path, "login")
mux.Handle(route, handlePasswordLogin(c.loginFunc, c.loginTpl, c, route, errorURL))
func (c *LDAPConnector) Handler(errorURL url.URL) http.Handler {
route := path.Join(c.namespace.Path, "/login")
return handlePasswordLogin(c.loginFunc, c.loginTpl, c, route, errorURL)
}
func (c *LDAPConnector) Sync() chan struct{} {

6
connector/connector_local.go
View file

@ -85,9 +85,9 @@ func (c *LocalConnector) LoginURL(sessionKey, prompt string) (string, error) {
return path.Join(c.namespace.Path, "login") + "?" + enc, nil
}
func (c *LocalConnector) Register(mux *http.ServeMux, errorURL url.URL) {
route := c.namespace.Path + "/login"
mux.Handle(route, handlePasswordLogin(c.loginFunc, c.loginTpl, c.idp, route, errorURL))
func (c *LocalConnector) Handler(errorURL url.URL) http.Handler {
route := path.Join(c.namespace.Path, "/login")
return handlePasswordLogin(c.loginFunc, c.loginTpl, c.idp, route, errorURL)
}
func (c *LocalConnector) Sync() chan struct{} {

4
connector/connector_oauth2.go
View file

@ -53,8 +53,8 @@ func (c *OAuth2Connector) LoginURL(sessionKey, prompt string) (string, error) {
return c.conn.Client().AuthCodeURL(sessionKey, oauth2.GrantTypeAuthCode, prompt), nil
}
func (c *OAuth2Connector) Register(mux *http.ServeMux, errorURL url.URL) {
mux.Handle(c.cbURL.Path, c.handleCallbackFunc(c.loginFunc, errorURL))
func (c *OAuth2Connector) Handler(errorURL url.URL) http.Handler {
return c.handleCallbackFunc(c.loginFunc, errorURL)
}
func (c *OAuth2Connector) handleCallbackFunc(lf oidc.LoginFunc, errorURL url.URL) http.HandlerFunc {

4
connector/connector_oidc.go
View file

@ -90,8 +90,8 @@ func (c *OIDCConnector) LoginURL(sessionKey, prompt string) (string, error) {
return oac.AuthCodeURL(sessionKey, "", prompt), nil
}
func (c *OIDCConnector) Register(mux *http.ServeMux, errorURL url.URL) {
mux.Handle(c.cbURL.Path, c.handleCallbackFunc(c.loginFunc, errorURL))
func (c *OIDCConnector) Handler(errorURL url.URL) http.Handler {
return c.handleCallbackFunc(c.loginFunc, errorURL)
}
func (c *OIDCConnector) Sync() chan struct{} {

8
connector/interface.go
View file

@ -21,12 +21,12 @@ type Connector interface {
// and OAuth2 prompt type.
LoginURL(sessionKey, prompt string) (string, error)
// Register allows connectors to register a callback handler with the
// Handler allows connectors to register a callback handler with the
// dex server.
//
// Connectors should register with a path that extends the namespace
// URL provided when the Connector is instantiated.
Register(mux *http.ServeMux, errorURL url.URL)
// Connectors will handle any path that extends the namespace URL provided
// when the Connector is instantiated.
Handler(errorURL url.URL) http.Handler
// Sync triggers any long-running tasks needed to maintain the
// Connector's operation. For example, this would encompass

4
server/http_test.go
View file

@ -40,7 +40,9 @@ func (f *fakeConnector) LoginURL(sessionKey, prompt string) (string, error) {
return f.loginURL, nil
}
func (f *fakeConnector) Register(mux *http.ServeMux, errorURL url.URL) {}
func (f *fakeConnector) Handler(errorURL url.URL) http.Handler {
return http.HandlerFunc(http.NotFound)
}
func (f *fakeConnector) Sync() chan struct{} {
return nil

4
server/server.go
View file

@ -269,7 +269,9 @@ func (s *Server) HTTPHandler() http.Handler {
if err != nil {
log.Fatal(err)
}
idpc.Register(mux, *errorURL)
// NOTE(ericchiang): This path MUST end in a "/" in order to indicate a
// path prefix rather than an absolute path.
mux.Handle(path.Join(httpPathAuth, idpc.ID())+"/", idpc.Handler(*errorURL))
}
apiBasePath := path.Join(httpPathAPI, APIVersion)