[v11.0.x] JWT: Find login and email claims with JMESPATH (#86357)

JWT: Find login and email claims with JMESPATH (#85305)

* add function to static function to static service

* find email and login claims with jmespath

* rename configuration files

* Replace JWTClaims struct for map

* check for subclaims error

(cherry picked from commit e4250a72db)

Co-authored-by: linoman <2051016+linoman@users.noreply.github.com>

pkg/setting/setting_jwt.go

@@ -21,6 +21,8 @@ type AuthJWTSettings struct {
 	AllowAssignGrafanaAdmin bool
 	SkipOrgRoleSync         bool
 	GroupsAttributePath     string
+	EmailAttributePath      string
+	UsernameAttributePath   string
 }
 
 func (cfg *Cfg) readAuthJWTSettings() {
@@ -43,6 +45,8 @@ func (cfg *Cfg) readAuthJWTSettings() {
 	jwtSettings.AllowAssignGrafanaAdmin = authJWT.Key("allow_assign_grafana_admin").MustBool(false)
 	jwtSettings.SkipOrgRoleSync = authJWT.Key("skip_org_role_sync").MustBool(false)
 	jwtSettings.GroupsAttributePath = valueAsString(authJWT, "groups_attribute_path", "")
+	jwtSettings.EmailAttributePath = valueAsString(authJWT, "email_attribute_path", "")
+	jwtSettings.UsernameAttributePath = valueAsString(authJWT, "username_attribute_path", "")
 
 	cfg.JWTAuth = jwtSettings
 }