Add tests for socket file length check

Author: JoshuaBehrens

sapi/fpm/tests/gh11066-fpm-unix-socket-too-long-filename-but-starts-anyway.phpt

@@ -0,0 +1,66 @@
+--TEST--
+FPM: gh11066 - listen filename is too long for OS socket path limitation but starts anyway
+--SKIPIF--
+<?php
+include "skipif.inc"; ?>
+--FILE--
+<?php
+
+require_once "tester.inc";
+$tempDir = sys_get_temp_dir();
+$socketFilePrefix = $tempDir . '/socket-file';
+$socketFile = $socketFilePrefix . '-that-is-too-long' . str_repeat('-0000', 18) . '.sock';
+$cfg = <<<EOT
+[global]
+error_log = {{FILE:LOG}}
+
+[fpm_pool]
+listen = $socketFile
+pm = static
+pm.max_children = 1
+catch_workers_output = yes
+EOT;
+
+$tester = new FPM\Tester($cfg);
+$tester->start();
+$tester->expectLogStartNotices();
+
+$warningPattern = sprintf(
+    '/\[pool fpm_pool\] cannot bind to UNIX socket \'%s\' as path is too long \(found length: %d, maximal length: \d+\), trying cut socket path instead \'.+\'/',
+    preg_quote($socketFile, '/'),
+    strlen($socketFile)
+);
+$tester->expectLogPattern($warningPattern, true);
+
+$files = glob($socketFilePrefix . '*');
+
+if ($files === []) {
+    echo 'Socket files were not found.' . PHP_EOL;
+}
+
+if ($socketFile === $files[0]) {
+    // this means the socket file path length is not an issue (anymore). Might be not long enough
+    echo 'Socket file is the same as configured.' . PHP_EOL;
+}
+
+$tester->terminate();
+$tester->expectLogTerminatingNotices();
+$tester->close();
+?>
+Done
+--EXPECT--
+Done
+--CLEAN--
+<?php
+require_once "tester.inc";
+FPM\Tester::clean();
+
+// cleanup socket file if php-fpm was not killed
+$tempDir = sys_get_temp_dir();
+$socketFilePrefix = $tempDir . '/socket-file';
+$socketFile = $socketFilePrefix . '-that-is-too-long' . str_repeat('-0000', 18) . '.sock';
+
+if (is_file($socketFile)) {
+    unlink($socketFile);
+}
+?>

sapi/fpm/tests/gh11066-fpm-unix-socket-too-long-filename-for-test.phpt

@@ -0,0 +1,44 @@
+--TEST--
+FPM: gh11066 - listen filename is too long for OS socket path limitation any fails configuration test
+--SKIPIF--
+<?php
+include "skipif.inc"; ?>
+--FILE--
+<?php
+
+require_once "tester.inc";
+$tempDir = sys_get_temp_dir();
+$socketFilePrefix = $tempDir . '/socket-file';
+$socketFile = $socketFilePrefix . '-that-is-too-long' . str_repeat('-0000', 18) . '.sock';
+$cfg = <<<EOT
+[global]
+error_log = {{FILE:LOG}}
+
+[fpm_pool]
+listen = $socketFile
+pm = static
+pm.max_children = 1
+catch_workers_output = yes
+EOT;
+
+$tester = new FPM\Tester($cfg);
+$tester->testConfig();
+
+$errorPattern = sprintf(
+    '/\[pool fpm_pool\] cannot bind to UNIX socket \'%s\' as path is too long \(found length: %d, maximal length: \d+\)/',
+    preg_quote($socketFile, '/'),
+    strlen($socketFile)
+);
+$tester->expectLogPattern($errorPattern, true);
+$tester->expectLogPattern('/FPM initialization failed/', true);
+$tester->terminate();
+$tester->close();
+?>
+Done
+--EXPECT--
+Done
+--CLEAN--
+<?php
+require_once "tester.inc";
+FPM\Tester::clean();
+?>