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// Copyright 2017 Frédéric Guillot. All rights reserved.
// Use of this source code is governed by the Apache 2.0
// license that can be found in the LICENSE file.
package controller
import (
"github.com/miniflux/miniflux/config"
"github.com/miniflux/miniflux/logger"
"github.com/miniflux/miniflux/model"
"github.com/miniflux/miniflux/server/cookie"
"github.com/miniflux/miniflux/server/core"
"github.com/miniflux/miniflux/server/oauth2"
"github.com/tomasen/realip"
)
// OAuth2Redirect redirects the user to the consent page to ask for permission.
func (c *Controller) OAuth2Redirect(ctx *core.Context, request *core.Request, response *core.Response) {
provider := request.StringParam("provider", "")
if provider == "" {
logger.Error("[OAuth2] Invalid or missing provider: %s", provider)
response.Redirect(ctx.Route("login"))
return
}
authProvider, err := getOAuth2Manager(c.cfg).Provider(provider)
if err != nil {
logger.Error("[OAuth2] %v", err)
response.Redirect(ctx.Route("login"))
return
}
response.Redirect(authProvider.GetRedirectURL(ctx.GenerateOAuth2State()))
}
// OAuth2Callback receives the authorization code and create a new session.
func (c *Controller) OAuth2Callback(ctx *core.Context, request *core.Request, response *core.Response) {
provider := request.StringParam("provider", "")
if provider == "" {
logger.Error("[OAuth2] Invalid or missing provider")
response.Redirect(ctx.Route("login"))
return
}
code := request.QueryStringParam("code", "")
if code == "" {
logger.Error("[OAuth2] No code received on callback")
response.Redirect(ctx.Route("login"))
return
}
state := request.QueryStringParam("state", "")
if state == "" || state != ctx.OAuth2State() {
logger.Error(`[OAuth2] Invalid state value: got "%s" instead of "%s"`, state, ctx.OAuth2State())
response.Redirect(ctx.Route("login"))
return
}
authProvider, err := getOAuth2Manager(c.cfg).Provider(provider)
if err != nil {
logger.Error("[OAuth2] %v", err)
response.Redirect(ctx.Route("login"))
return
}
profile, err := authProvider.GetProfile(code)
if err != nil {
logger.Error("[OAuth2] %v", err)
response.Redirect(ctx.Route("login"))
return
}
if ctx.IsAuthenticated() {
user := ctx.LoggedUser()
if err := c.store.UpdateExtraField(user.ID, profile.Key, profile.ID); err != nil {
response.HTML().ServerError(err)
return
}
ctx.SetFlashMessage(ctx.Translate("Your external account is now linked !"))
response.Redirect(ctx.Route("settings"))
return
}
user, err := c.store.UserByExtraField(profile.Key, profile.ID)
if err != nil {
response.HTML().ServerError(err)
return
}
if user == nil {
if c.cfg.GetInt("OAUTH2_USER_CREATION", 0) == 0 {
response.HTML().Forbidden()
return
}
user = model.NewUser()
user.Username = profile.Username
user.IsAdmin = false
user.Extra[profile.Key] = profile.ID
if err := c.store.CreateUser(user); err != nil {
response.HTML().ServerError(err)
return
}
}
sessionToken, err := c.store.CreateUserSession(
user.Username,
request.Request().UserAgent(),
realip.RealIP(request.Request()),
)
if err != nil {
response.HTML().ServerError(err)
return
}
logger.Info("[Controller:OAuth2Callback] username=%s just logged in", user.Username)
response.SetCookie(cookie.New(cookie.CookieUserSessionID, sessionToken, request.IsHTTPS()))
response.Redirect(ctx.Route("unread"))
}
// OAuth2Unlink unlink an account from the external provider.
func (c *Controller) OAuth2Unlink(ctx *core.Context, request *core.Request, response *core.Response) {
provider := request.StringParam("provider", "")
if provider == "" {
logger.Info("[OAuth2] Invalid or missing provider")
response.Redirect(ctx.Route("login"))
return
}
authProvider, err := getOAuth2Manager(c.cfg).Provider(provider)
if err != nil {
logger.Error("[OAuth2] %v", err)
response.Redirect(ctx.Route("settings"))
return
}
user := ctx.LoggedUser()
if err := c.store.RemoveExtraField(user.ID, authProvider.GetUserExtraKey()); err != nil {
response.HTML().ServerError(err)
return
}
response.Redirect(ctx.Route("settings"))
return
}
func getOAuth2Manager(cfg *config.Config) *oauth2.Manager {
return oauth2.NewManager(
cfg.Get("OAUTH2_CLIENT_ID", ""),
cfg.Get("OAUTH2_CLIENT_SECRET", ""),
cfg.Get("OAUTH2_REDIRECT_URL", ""),
)
}
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