dex/connector/connector_local.go

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2015-08-18 05:57:27 +05:30
package connector
import (
"fmt"
"html/template"
"net/http"
"net/url"
"path"
phttp "github.com/coreos/dex/pkg/http"
"github.com/coreos/dex/pkg/log"
"github.com/coreos/dex/user"
"github.com/coreos/go-oidc/oauth2"
"github.com/coreos/go-oidc/oidc"
)
const (
LocalConnectorType = "local"
LoginPageTemplateName = "local-login.html"
)
func init() {
RegisterConnectorConfigType(LocalConnectorType, func() ConnectorConfig { return &LocalConnectorConfig{} })
}
type LocalConnectorConfig struct {
ID string `json:"id"`
PasswordInfos []user.PasswordInfo `json:"passwordInfos"`
}
func (cfg *LocalConnectorConfig) ConnectorID() string {
return cfg.ID
}
func (cfg *LocalConnectorConfig) ConnectorType() string {
return LocalConnectorType
}
func (cfg *LocalConnectorConfig) Connector(ns url.URL, lf oidc.LoginFunc, tpls *template.Template) (Connector, error) {
tpl := tpls.Lookup(LoginPageTemplateName)
if tpl == nil {
return nil, fmt.Errorf("unable to find necessary HTML template")
}
idpc := &LocalConnector{
id: cfg.ID,
namespace: ns,
loginFunc: lf,
loginTpl: tpl,
}
return idpc, nil
}
type LocalConnector struct {
id string
idp *LocalIdentityProvider
namespace url.URL
loginFunc oidc.LoginFunc
loginTpl *template.Template
}
type Page struct {
PostURL string
Name string
Error bool
Message string
SessionKey string
}
func (c *LocalConnector) ID() string {
return c.id
}
func (c *LocalConnector) Healthy() error {
return nil
}
func (c *LocalConnector) SetLocalIdentityProvider(idp *LocalIdentityProvider) {
c.idp = idp
}
func (c *LocalConnector) LoginURL(sessionKey, prompt string) (string, error) {
q := url.Values{}
q.Set("session_key", sessionKey)
q.Set("prompt", prompt)
enc := q.Encode()
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, handleLoginFunc(c.loginFunc, c.loginTpl, c.idp, route, errorURL))
}
func (c *LocalConnector) Sync() chan struct{} {
return make(chan struct{})
}
func (c *LocalConnector) TrustedEmailProvider() bool {
return false
}
func redirectPostError(w http.ResponseWriter, errorURL url.URL, q url.Values) {
redirectURL := phttp.MergeQuery(errorURL, q)
w.Header().Set("Location", redirectURL.String())
w.WriteHeader(http.StatusSeeOther)
}
func handleLoginFunc(lf oidc.LoginFunc, tpl *template.Template, idp *LocalIdentityProvider, localErrorPath string, errorURL url.URL) http.HandlerFunc {
handleGET := func(w http.ResponseWriter, r *http.Request, errMsg string) {
q := r.URL.Query()
sessionKey := q.Get("session_key")
p := &Page{PostURL: r.URL.String(), Name: "Local", SessionKey: sessionKey}
if errMsg != "" {
p.Error = true
p.Message = errMsg
}
if err := tpl.Execute(w, p); err != nil {
phttp.WriteError(w, http.StatusInternalServerError, err.Error())
}
}
handlePOST := func(w http.ResponseWriter, r *http.Request) {
if err := r.ParseForm(); err != nil {
msg := fmt.Sprintf("unable to parse form from body: %v", err)
phttp.WriteError(w, http.StatusBadRequest, msg)
return
}
userid := r.PostForm.Get("userid")
if userid == "" {
handleGET(w, r, "missing email address")
return
}
password := r.PostForm.Get("password")
if password == "" {
handleGET(w, r, "missing password")
return
}
ident, err := idp.Identity(userid, password)
log.Errorf("IDENTITY: err: %v", err)
if ident == nil || err != nil {
handleGET(w, r, "invalid login")
return
}
q := r.URL.Query()
sessionKey := r.FormValue("session_key")
if sessionKey == "" {
q.Set("error", oauth2.ErrorInvalidRequest)
q.Set("error_description", "missing session_key")
redirectPostError(w, errorURL, q)
return
}
redirectURL, err := lf(*ident, sessionKey)
if err != nil {
log.Errorf("Unable to log in %#v: %v", *ident, err)
q.Set("error", oauth2.ErrorAccessDenied)
q.Set("error_description", "login failed")
redirectPostError(w, errorURL, q)
return
}
w.Header().Set("Location", redirectURL)
w.WriteHeader(http.StatusFound)
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}
return func(w http.ResponseWriter, r *http.Request) {
switch r.Method {
case "POST":
handlePOST(w, r)
case "GET":
handleGET(w, r, "")
default:
w.Header().Set("Allow", "GET, POST")
phttp.WriteError(w, http.StatusMethodNotAllowed, "GET and POST only acceptable methods")
}
}
}
type LocalIdentityProvider struct {
PasswordInfoRepo user.PasswordInfoRepo
UserRepo user.UserRepo
}
func (m *LocalIdentityProvider) Identity(email, password string) (*oidc.Identity, error) {
user, err := m.UserRepo.GetByEmail(nil, email)
if err != nil {
return nil, err
}
id := user.ID
pi, err := m.PasswordInfoRepo.Get(nil, id)
if err != nil {
return nil, err
}
return pi.Authenticate(password)
}