1 files changed, 41 insertions, 0 deletions
diff --git a/src/web/helpers/ldap.php b/src/web/helpers/ldap.php
new file mode 100644
index 0000000..f3697cc
--- /dev/null
+++ b/src/web/helpers/ldap.php
@@ -0,0 +1,41 @@
+<?php /* Copyright (c) 2024 Freya Murphy */
+
+function ldap_auth($auth_username, $auth_password) {
+	$url = getenv("LDAP_URL");
+	$bind = getenv("LDAP_BIND_DN");
+	$password = getenv("LDAP_BIND_PASSWORD");
+	$bound = getenv("LDAP_BASE_DN");
+	$filter = getenv("LDAP_FILTER");
+	$uid = getenv("LDAP_UID");
+
+	$conn = @ldap_connect($url);
+	if (!$conn) {
+		return NULL;
+	}
+	ldap_set_option($conn, LDAP_OPT_PROTOCOL_VERSION, 3);
+
+	$bind_conn = @ldap_bind($conn, $bind, $password);
+	if (!$bind_conn) {
+		return NULL;
+	}
+
+	$search = @ldap_search($conn, $bound, $filter);
+
+	$info = @ldap_get_entries($conn, $search);
+	$user = NULL;
+	for ($i=0; $i<$info['count']; $i++) {
+		$user = $info[$i];
+		if (!array_key_exists($uid, $user))
+			continue;
+		if ($user[$uid][0] == $auth_username)
+			break;
+	}
+
+	if ($user == NULL) {
+		return FALSE;
+	}
+
+	$succ = @ldap_bind($conn, $user['dn'], $auth_password);
+	return !!$succ;
+}
+