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// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
package web
import (
b64 "encoding/base64"
"net/http"
"strings"
"github.com/mattermost/mattermost-server/mlog"
"github.com/mattermost/mattermost-server/model"
)
func (w *Web) InitSaml() {
w.MainRouter.Handle("/login/sso/saml", w.NewHandler(loginWithSaml)).Methods("GET")
w.MainRouter.Handle("/login/sso/saml", w.NewHandler(completeSaml)).Methods("POST")
}
func loginWithSaml(c *Context, w http.ResponseWriter, r *http.Request) {
samlInterface := c.App.Saml
if samlInterface == nil {
c.Err = model.NewAppError("loginWithSaml", "api.user.saml.not_available.app_error", nil, "", http.StatusFound)
return
}
teamId, err := c.App.GetTeamIdFromQuery(r.URL.Query())
if err != nil {
c.Err = err
return
}
action := r.URL.Query().Get("action")
redirectTo := r.URL.Query().Get("redirect_to")
extensionId := r.URL.Query().Get("extension_id")
relayProps := map[string]string{}
relayState := ""
if len(action) != 0 {
relayProps["team_id"] = teamId
relayProps["action"] = action
if action == model.OAUTH_ACTION_EMAIL_TO_SSO {
relayProps["email"] = r.URL.Query().Get("email")
}
}
if len(redirectTo) != 0 {
relayProps["redirect_to"] = redirectTo
}
if len(extensionId) != 0 {
relayProps["extension_id"] = extensionId
err := c.App.ValidateExtension(extensionId)
if err != nil {
c.Err = err
return
}
}
if len(relayProps) > 0 {
relayState = b64.StdEncoding.EncodeToString([]byte(model.MapToJson(relayProps)))
}
if data, err := samlInterface.BuildRequest(relayState); err != nil {
c.Err = err
return
} else {
w.Header().Set("Content-Type", "application/x-www-form-urlencoded")
http.Redirect(w, r, data.URL, http.StatusFound)
}
}
func completeSaml(c *Context, w http.ResponseWriter, r *http.Request) {
samlInterface := c.App.Saml
if samlInterface == nil {
c.Err = model.NewAppError("completeSaml", "api.user.saml.not_available.app_error", nil, "", http.StatusFound)
return
}
//Validate that the user is with SAML and all that
encodedXML := r.FormValue("SAMLResponse")
relayState := r.FormValue("RelayState")
relayProps := make(map[string]string)
if len(relayState) > 0 {
stateStr := ""
if b, err := b64.StdEncoding.DecodeString(relayState); err != nil {
c.Err = model.NewAppError("completeSaml", "api.user.authorize_oauth_user.invalid_state.app_error", nil, err.Error(), http.StatusFound)
return
} else {
stateStr = string(b)
}
relayProps = model.MapFromJson(strings.NewReader(stateStr))
}
action := relayProps["action"]
if user, err := samlInterface.DoLogin(encodedXML, relayProps); err != nil {
if action == model.OAUTH_ACTION_MOBILE {
err.Translate(c.T)
w.Write([]byte(err.ToJson()))
} else {
c.Err = err
c.Err.StatusCode = http.StatusFound
}
return
} else {
if err := c.App.CheckUserAllAuthenticationCriteria(user, ""); err != nil {
c.Err = err
c.Err.StatusCode = http.StatusFound
return
}
switch action {
case model.OAUTH_ACTION_SIGNUP:
teamId := relayProps["team_id"]
if len(teamId) > 0 {
c.App.Go(func() {
if err := c.App.AddUserToTeamByTeamId(teamId, user); err != nil {
mlog.Error(err.Error())
} else {
c.App.AddDirectChannels(teamId, user)
}
})
}
case model.OAUTH_ACTION_EMAIL_TO_SSO:
if err := c.App.RevokeAllSessions(user.Id); err != nil {
c.Err = err
return
}
c.LogAuditWithUserId(user.Id, "Revoked all sessions for user")
c.App.Go(func() {
if err := c.App.SendSignInChangeEmail(user.Email, strings.Title(model.USER_AUTH_SERVICE_SAML)+" SSO", user.Locale, c.App.GetSiteURL()); err != nil {
mlog.Error(err.Error())
}
})
}
session, err := c.App.DoLogin(w, r, user, "")
if err != nil {
c.Err = err
return
}
c.Session = *session
if val, ok := relayProps["redirect_to"]; ok {
http.Redirect(w, r, c.GetSiteURLHeader()+val, http.StatusFound)
return
}
if action == model.OAUTH_ACTION_MOBILE {
ReturnStatusOK(w)
} else if action == model.OAUTH_ACTION_CLIENT {
err = c.App.SendMessageToExtension(w, relayProps["extension_id"], c.Session.Token)
if err != nil {
c.Err = err
return
}
} else {
http.Redirect(w, r, c.GetSiteURLHeader(), http.StatusFound)
}
}
}
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