From d42f86e2189efd5d097209542210e0d80b4dca3b Mon Sep 17 00:00:00 2001
From: Michael <heluecht@pirati.ca>
Date: Thu, 8 Feb 2018 22:18:34 +0000
Subject: [PATCH] We can now delegate again like before

---
 boot.php                     |  2 +-
 include/security.php         | 33 ++++++++++++++++++++++++++++-----
 mod/manage.php               | 34 ++++++++++++++++++++++++++++------
 src/Database/DBStructure.php |  1 +
 4 files changed, 58 insertions(+), 12 deletions(-)

diff --git a/boot.php b/boot.php
index feca503997..6816915417 100644
--- a/boot.php
+++ b/boot.php
@@ -39,7 +39,7 @@ define('FRIENDICA_PLATFORM',     'Friendica');
 define('FRIENDICA_CODENAME',     'Asparagus');
 define('FRIENDICA_VERSION',      '3.6-dev');
 define('DFRN_PROTOCOL_VERSION',  '2.23');
-define('DB_UPDATE_VERSION',      1251);
+define('DB_UPDATE_VERSION',      1252);
 define('NEW_UPDATE_ROUTINE_VERSION', 1170);
 
 /**
diff --git a/include/security.php b/include/security.php
index 45f8d86b10..af424df26c 100644
--- a/include/security.php
+++ b/include/security.php
@@ -107,12 +107,35 @@ function authenticate_success($user_record, $login_initial = false, $interactive
 		}
 	}
 
-	$r = dba::select('user', ['uid', 'username', 'nickname'],
-		['password' => $master_record['password'], 'email' => $master_record['email'], 'account_removed' => false]);
-	if (DBM::is_result($r)) {
-		$a->identities = dba::inArray($r);
+	if ($master_record['parent-uid'] == 0) {
+		// First add our own entry
+		$a->identities = [['uid' => $master_record['uid'],
+				'username' => $master_record['username'],
+				'nickname' => $master_record['nickname']]];
+
+		// Then add all the children
+		$r = dba::select('user', ['uid', 'username', 'nickname'],
+			['parent-uid' => $master_record['uid'], 'account_removed' => false]);
+		if (DBM::is_result($r)) {
+			$a->identities = array_merge($a->identities, dba::inArray($r));
+		}
 	} else {
+		// Just ensure that the array is always defined
 		$a->identities = [];
+
+		// First entry is our parent
+		$r = dba::select('user', ['uid', 'username', 'nickname'],
+			['uid' => $master_record['parent-uid'], 'account_removed' => false]);
+		if (DBM::is_result($r)) {
+			$a->identities = dba::inArray($r);
+		}
+
+		// Then add all siblings
+		$r = dba::select('user', ['uid', 'username', 'nickname'],
+			['parent-uid' => $master_record['parent-uid'], 'account_removed' => false]);
+		if (DBM::is_result($r)) {
+			$a->identities = array_merge($a->identities, dba::inArray($r));
+		}
 	}
 
 	$r = dba::p("SELECT `user`.`uid`, `user`.`username`, `user`.`nickname`
@@ -146,7 +169,7 @@ function authenticate_success($user_record, $login_initial = false, $interactive
 
 		// Set the login date for all identities of the user
 		dba::update('user', ['login_date' => DateTimeFormat::utcNow()],
-			['password' => $master_record['password'], 'email' => $master_record['email'], 'account_removed' => false]);
+			['parent-uid' => $master_record['uid'], 'account_removed' => false]);
 	}
 
 	if ($login_initial) {
diff --git a/mod/manage.php b/mod/manage.php
index a454d41473..0f60e704e4 100644
--- a/mod/manage.php
+++ b/mod/manage.php
@@ -35,8 +35,8 @@ function manage_post(App $a) {
 
 	$submanage = $r;
 
-	$identity = ((x($_POST['identity'])) ? intval($_POST['identity']) : 0);
-	if (! $identity) {
+	$identity = (x($_POST['identity']) ? intval($_POST['identity']) : 0);
+	if (!$identity) {
 		return;
 	}
 
@@ -57,14 +57,36 @@ function manage_post(App $a) {
 			intval($limited_id)
 		);
 	} else {
-		$r = q("SELECT * FROM `user` WHERE `uid` = %d AND `email` = '%s' AND `password` = '%s' LIMIT 1",
+		// Check if the target user is one of our children
+		$r = q("SELECT * FROM `user` WHERE `uid` = %d AND `parent-uid` = %d LIMIT 1",
 			intval($identity),
-			dbesc($orig_record['email']),
-			dbesc($orig_record['password'])
+			dbesc($orig_record['uid'])
 		);
+
+		// Check if the target user is one of our siblings
+		if (!DBM::is_result($r) && ($orig_record['parent-uid'] != 0)) {
+			$r = q("SELECT * FROM `user` WHERE `uid` = %d AND `parent-uid` = %d LIMIT 1",
+				intval($identity),
+				dbesc($orig_record['parent-uid'])
+			);
+		}
+
+		// Check if it's our parent
+		if (!DBM::is_result($r) && ($orig_record['parent-uid'] != 0) && ($orig_record['parent-uid'] == $identity)) {
+			$r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
+				intval($identity)
+			);
+		}
+
+		// Finally check if it's out own user
+		if (!DBM::is_result($r) && ($orig_record['uid'] != 0) && ($orig_record['uid'] == $identity)) {
+			$r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
+				intval($identity)
+			);
+		}
 	}
 
-	if (! DBM::is_result($r)) {
+	if (!DBM::is_result($r)) {
 		return;
 	}
 
diff --git a/src/Database/DBStructure.php b/src/Database/DBStructure.php
index 9ab866de9d..9c3c0d82a3 100644
--- a/src/Database/DBStructure.php
+++ b/src/Database/DBStructure.php
@@ -1707,6 +1707,7 @@ class DBStructure
 				"comment" => "The local users",
 				"fields" => [
 						"uid" => ["type" => "mediumint", "not null" => "1", "extra" => "auto_increment", "primary" => "1", "comment" => ""],
+						"parent-uid" => ["type" => "mediumint", "not null" => "1", "default" => "0", "relation" => ["user" => "uid"], "comment" => "The parent user that has full control about this user"],
 						"guid" => ["type" => "varchar(64)", "not null" => "1", "default" => "", "comment" => ""],
 						"username" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],
 						"password" => ["type" => "varchar(255)", "not null" => "1", "default" => "", "comment" => ""],