Login via OpenID-2.0 (#618)

routers/user/setting_openid.go

@@ -0,0 +1,142 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package user
+
+import (
+
+	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/modules/auth"
+	"code.gitea.io/gitea/modules/auth/openid"
+	"code.gitea.io/gitea/modules/base"
+	"code.gitea.io/gitea/modules/context"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+)
+
+const (
+	tplSettingsOpenID       base.TplName = "user/settings/openid"
+)
+
+// SettingsOpenID renders change user's openid page
+func SettingsOpenID(ctx *context.Context) {
+	ctx.Data["Title"] = ctx.Tr("settings")
+	ctx.Data["PageIsSettingsOpenID"] = true
+
+	if ctx.Query("openid.return_to") != "" {
+		settingsOpenIDVerify(ctx)
+		return
+	}
+
+	openid, err := models.GetUserOpenIDs(ctx.User.ID)
+	if err != nil {
+		ctx.Handle(500, "GetUserOpenIDs", err)
+		return
+	}
+	ctx.Data["OpenIDs"] = openid
+
+	ctx.HTML(200, tplSettingsOpenID)
+}
+
+// SettingsOpenIDPost response for change user's openid
+func SettingsOpenIDPost(ctx *context.Context, form auth.AddOpenIDForm) {
+	ctx.Data["Title"] = ctx.Tr("settings")
+	ctx.Data["PageIsSettingsOpenID"] = true
+
+	if ctx.HasError() {
+		ctx.HTML(200, tplSettingsOpenID)
+		return
+	}
+
+	// WARNING: specifying a wrong OpenID here could lock
+	// a user out of her account, would be better to
+	// verify/confirm the new OpenID before storing it
+
+	// Also, consider allowing for multiple OpenID URIs
+
+	id, err := openid.Normalize(form.Openid)
+	if err != nil {
+		ctx.RenderWithErr(err.Error(), tplSettingsOpenID, &form)
+		return;
+	}
+	form.Openid = id
+        log.Trace("Normalized id: " + id)
+
+	oids, err := models.GetUserOpenIDs(ctx.User.ID)
+	if err != nil {
+		ctx.Handle(500, "GetUserOpenIDs", err)
+		return
+	}
+	ctx.Data["OpenIDs"] = oids
+
+	// Check that the OpenID is not already used
+	for _, obj := range oids {
+		if obj.URI == id {
+			ctx.RenderWithErr(ctx.Tr("form.openid_been_used", id), tplSettingsOpenID, &form)
+			return
+		}
+	}
+
+
+	redirectTo := setting.AppURL + "user/settings/openid"
+	url, err := openid.RedirectURL(id, redirectTo, setting.AppURL)
+        if err != nil {
+		ctx.RenderWithErr(err.Error(), tplSettingsOpenID, &form)
+                return;
+        }
+	ctx.Redirect(url)
+}
+
+func settingsOpenIDVerify(ctx *context.Context) {
+        log.Trace("Incoming call to: " + ctx.Req.Request.URL.String())
+
+        fullURL := setting.AppURL + ctx.Req.Request.URL.String()[1:]
+        log.Trace("Full URL: " + fullURL)
+
+	oids, err := models.GetUserOpenIDs(ctx.User.ID)
+	if err != nil {
+		ctx.Handle(500, "GetUserOpenIDs", err)
+		return
+	}
+	ctx.Data["OpenIDs"] = oids
+
+	id, err := openid.Verify(fullURL)
+	if err != nil {
+		ctx.RenderWithErr(err.Error(), tplSettingsOpenID, &auth.AddOpenIDForm{
+			Openid: id,
+		})
+		return
+	}
+
+	log.Trace("Verified ID: " + id)
+
+	oid := &models.UserOpenID{UID:ctx.User.ID, URI:id}
+	if err = models.AddUserOpenID(oid); err != nil {
+		if models.IsErrOpenIDAlreadyUsed(err) {
+			ctx.RenderWithErr(ctx.Tr("form.openid_been_used", id), tplSettingsOpenID, &auth.AddOpenIDForm{ Openid: id })
+			return
+		}
+		ctx.Handle(500, "AddUserOpenID", err)
+		return
+	}
+	log.Trace("Associated OpenID %s to user %s", id, ctx.User.Name)
+	ctx.Flash.Success(ctx.Tr("settings.add_openid_success"))
+
+	ctx.Redirect(setting.AppSubURL + "/user/settings/openid")
+}
+
+// DeleteOpenID response for delete user's openid
+func DeleteOpenID(ctx *context.Context) {
+	if err := models.DeleteUserOpenID(&models.UserOpenID{ID: ctx.QueryInt64("id"), UID: ctx.User.ID}); err != nil {
+		ctx.Handle(500, "DeleteUserOpenID", err)
+		return
+	}
+	log.Trace("OpenID address deleted: %s", ctx.User.Name)
+
+	ctx.Flash.Success(ctx.Tr("settings.openid_deletion_success"))
+	ctx.JSON(200, map[string]interface{}{
+		"redirect": setting.AppSubURL + "/user/settings/openid",
+	})
+}
+