Fix bug #72333 (fwrite() on non-blocking SSL sockets does not work)

Author: bukka

ext/openssl/tests/bug72333.phpt

@@ -0,0 +1,54 @@
+--TEST--
+Bug #72333: fwrite() on non-blocking SSL sockets doesn't work
+--SKIPIF--
+<?php
+if (!extension_loaded("openssl")) die("skip openssl not loaded");
+if (!function_exists("proc_open")) die("skip no proc_open");
+?>
+--FILE--
+<?php
+$serverCode = <<<'CODE'
+	$context = stream_context_create(['ssl' => ['local_cert' => __DIR__ . '/bug54992.pem']]);
+
+	$flags = STREAM_SERVER_BIND|STREAM_SERVER_LISTEN;
+	$fp = stream_socket_server("ssl://127.0.0.1:10011", $errornum, $errorstr, $flags, $context);
+	phpt_notify();
+	$conn = stream_socket_accept($fp);
+
+	for ($i = 0; $i < 5; $i++) {
+		fread($conn, 100000);
+		usleep(200000);
+	}
+CODE;
+
+$clientCode = <<<'CODE'
+	$context = stream_context_create(['ssl' => ['verify_peer' => false, 'peer_name' => 'bug54992.local']]);
+
+	phpt_wait();
+	$fp = stream_socket_client("ssl://127.0.0.1:10011", $errornum, $errorstr, 3000, STREAM_CLIENT_CONNECT, $context);
+	stream_set_blocking($fp, 0);
+
+	function blocking_fwrite($fp, $buf) {
+		$write = [$fp];
+		$total = 0;
+		while (stream_select($read, $write, $except, 180)) {
+			$result = fwrite($fp, $buf);
+			$total += $result;
+			if ($total >= strlen($buf)) {
+				return $total;
+			}
+			$buf = substr($buf, $total);
+		}
+	}
+
+	$str1 = str_repeat("a", 5000000);
+	blocking_fwrite($fp, $str1);
+	echo "done";
+CODE;
+
+include 'ServerClientTestCase.inc';
+ServerClientTestCase::getInstance()->run($clientCode, $serverCode);
+?>
+--EXPECT--
+done
+

ext/openssl/xp_ssl.c

@@ -1814,6 +1814,14 @@ static int php_openssl_enable_crypto(php_stream *stream,
 
 		if (SUCCESS == php_set_sock_blocking(sslsock->s.socket, 0)) {
 			sslsock->s.is_blocked = 0;
+			SSL_set_mode(
+				sslsock->ssl_handle,
+				(
+					SSL_get_mode(sslsock->ssl_handle) |
+					SSL_MODE_ENABLE_PARTIAL_WRITE |
+					SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER
+				)
+			);
 		}
 
 		timeout = sslsock->is_client ? &sslsock->connect_timeout : &sslsock->s.timeout;