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From bae86dbeb0ad68a205454e98e76985dc393183d4 Mon Sep 17 00:00:00 2001
From: Ieva <ieva.vasiljeva@grafana.com>
Date: Tue, 6 Jun 2023 17:45:31 +0100
Subject: [PATCH] Auth: Remove Email Lookup from oauth integrations 9.2 (#898)

backport https://github.com/grafana/grafana-private-mirror/pull/894 to 9.3.x
---
 pkg/api/login_oauth.go | 17 +++++++++--------
 pkg/setting/setting.go |  5 ++++-
 2 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/pkg/api/login_oauth.go b/pkg/api/login_oauth.go
index 22014aee433c2..af00c56a68ccd 100644
--- a/pkg/api/login_oauth.go
+++ b/pkg/api/login_oauth.go
@@ -302,16 +302,17 @@ func (hs *HTTPServer) SyncUser(
 	connect social.SocialConnector,
 ) (*user.User, error) {
 	oauthLogger.Debug("Syncing Grafana user with corresponding OAuth profile")
+	lookupParams := models.UserLookupParams{}
+	if hs.Cfg.OAuthAllowInsecureEmailLookup {
+		lookupParams.Email = &extUser.Email
+	}
+
 	// add/update user in Grafana
 	cmd := &models.UpsertUserCommand{
-		ReqContext:    ctx,
-		ExternalUser:  extUser,
-		SignupAllowed: connect.IsSignupAllowed(),
-		UserLookupParams: models.UserLookupParams{
-			Email:  &extUser.Email,
-			UserID: nil,
-			Login:  nil,
-		},
+		ReqContext:       ctx,
+		ExternalUser:     extUser,
+		SignupAllowed:    connect.IsSignupAllowed(),
+		UserLookupParams: lookupParams,
 	}
 
 	if err := hs.Login.UpsertUser(ctx.Req.Context(), cmd); err != nil {
diff --git a/pkg/setting/setting.go b/pkg/setting/setting.go
index 20e8f78a2f55c..03aa5c17d8682 100644
--- a/pkg/setting/setting.go
+++ b/pkg/setting/setting.go
@@ -318,7 +318,8 @@ type Cfg struct {
 	AuthProxySyncTTL          int
 
 	// OAuth
-	OAuthCookieMaxAge int
+	OAuthCookieMaxAge             int
+	OAuthAllowInsecureEmailLookup bool
 
 	// JWT Auth
 	JWTAuthEnabled                 bool
@@ -1305,6 +1306,8 @@ func readAuthSettings(iniFile *ini.File, cfg *Cfg) (err error) {
 		return err
 	}
 
+	cfg.OAuthAllowInsecureEmailLookup = auth.Key("oauth_allow_insecure_email_lookup").MustBool(false)
+
 	const defaultMaxLifetime = "30d"
 	maxLifetimeDurationVal := valueAsString(auth, "login_maximum_lifetime_duration", defaultMaxLifetime)
 	cfg.LoginMaxLifetime, err = gtime.ParseDuration(maxLifetimeDurationVal)