From f9a699f6c3aa7acea922242a0f14731f6b829742 Mon Sep 17 00:00:00 2001
From: Anatol Belski <ab@php.net>
Date: Fri, 23 Sep 2016 16:02:50 +0200
Subject: [PATCH] Fixed bug #73037 SoapServer reports Bad Request when gzipped

(cherry picked from commit 410c68788ae4826807e8ced3f4a02e676142b22a)
---
 ext/soap/soap.c              |   2 +
 ext/soap/tests/bug73037.phpt | 196 +++++++++++++++++++++++++++++++++++
 main/streams/streams.c       |   2 +-
 3 files changed, 199 insertions(+), 1 deletion(-)
 create mode 100644 ext/soap/tests/bug73037.phpt

diff --git a/ext/soap/soap.c b/ext/soap/soap.c
index f0e26bf19d0..f79d84c8a1f 100644
--- a/ext/soap/soap.c
+++ b/ext/soap/soap.c
@@ -1598,6 +1598,8 @@ PHP_METHOD(SoapServer, handle)
 
 					if (zf) {
 						php_stream_filter_append(&SG(request_info).request_body->readfilters, zf);
+						SG(request_info).request_body->flags &= ~PHP_STREAM_FLAG_NO_BUFFER;
+
 					} else {
 						php_error_docref(NULL TSRMLS_CC, E_WARNING,"Can't uncompress compressed request");
 						return;
diff --git a/ext/soap/tests/bug73037.phpt b/ext/soap/tests/bug73037.phpt
new file mode 100644
index 00000000000..bb90538b9bb
--- /dev/null
+++ b/ext/soap/tests/bug73037.phpt
@@ -0,0 +1,196 @@
+--TEST--
+Bug #73037 SoapServer reports Bad Request when gzipped, var 0
+--SKIPIF--
+<?php 
+	require_once('skipif.inc');
+	if (!extension_loaded("zlib")) {
+		echo "skip zlib is required for this test";
+	}
+?>
+--FILE--
+<?php
+
+function get_data($max)
+{
+	$piece = "<CD>
+		<TITLE>Empire Burlesque</TITLE>
+		<ARTIST>Bob Dylan</ARTIST>
+		<COUNTRY>USA</COUNTRY>
+		<COMPANY>Columbia</COMPANY>
+		<PRICE>10.90</PRICE>
+		<YEAR>1985</YEAR>
+	</CD>";
+
+	$begin = '<?xml version="1.0" encoding="UTF-8"?><soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><soapenv:Body><CATALOG>';
+	$end = '</CATALOG></soapenv:Body></soapenv:Envelope>';
+
+	$min = strlen($begin) + strlen($piece) + strlen($end);
+	$max = $max < $min ? $min : $max;
+
+	$data = $begin;
+	$data .= $piece;
+	while (strlen($data) + strlen($end) < $max) {
+		/* Randomize a bit, taking gzip in account. */
+		$tmp = str_replace(
+			array(
+				"Empire Burlesque",
+				"Bob Dylan",
+			),
+			array(
+				md5(uniqid()),
+				sha1(uniqid()),
+			),
+			$piece
+		);
+
+		if (strlen($begin) + strlen($tmp) + strlen($end) > $max) {
+			break;
+		}
+
+		$data .= $tmp;
+	}
+	$data .= $end;
+
+	return $data;
+}
+
+$code = <<<'PHP'
+$s = new SoapServer(NULL, array('uri' => 'http://here'));
+$s->setObject(new stdclass());
+$s->handle();
+PHP;
+
+$router = "bug73037_server.php";
+file_put_contents(dirname(__FILE__) . DIRECTORY_SEPARATOR . $router, '<?php ' . $code . ' ?>');
+	
+$host = "localhost";
+$port = "8965";
+$desc = array(
+	0 => STDIN,
+	1 => STDOUT,
+	2 => STDERR,
+);
+/*$desc = array(
+	array("pipe", "r"),
+	array("pipe", "w"),
+	array("pipe", "w")
+);*/
+if (substr(PHP_OS, 0, 3) == 'WIN') {
+	$cmd = getenv('TEST_PHP_EXECUTABLE') . " -t " . dirname(__FILE__) .  " -S $host:$port";
+	$handle = proc_open($cmd, $desc, $pipes, dirname(__FILE__), NULL, array("bypass_shell" => true,  "suppress_errors" => true));
+} else {
+	$cmd = getenv('TEST_PHP_EXECUTABLE') . " -t " . dirname(__FILE__) .  " -S $host:$port 2>/dev/null";
+	$handle = proc_open($cmd, $desc, $pipes, dirname(__FILE__));
+}
+//echo stream_get_contents($pipes[1]), "\n", stream_get_contents($pipes[2]);
+
+foreach (array(1024-1, 1024*8-3, 1024*9+1, 1024*16-1, 1024*32-5, 1024*64+3, 1024*128-7) as $k => $i) {
+	echo "Iteration $k\n\n";
+
+	/* with and without compression */
+	foreach (array(false, true) as $b) {
+		$data = get_data($i);
+		if ($b) {
+			$data = gzencode($data);
+		}
+		$len = strlen($data);
+
+		//echo "len=$len\n";
+
+		$hdrs = <<<HDRS
+POST /bug73037_server.php HTTP/1.1
+Content-Type: application/soap+xml; charset=UTF-8
+Accept: application/soap+xml, application/dime, multipart/related, text/*
+SOAPAction: "urn:adressen#adressen#SetAda"
+Expect: 100-continue
+Content-Length: ${len}
+HDRS;
+		if ($b) {
+			$hdrs .="\nContent-Encoding: gzip";		
+		}
+		//echo "Headers sent:\n$hdrs\n\n";
+		$fp = fsockopen($host, $port, $errno, $errstr, 5);
+		if (!$fp) {
+		  die("connect failed");
+		}
+
+		if(fwrite($fp, "$hdrs\n\n$data")) {
+			$out = "";
+			while (!feof($fp)) {
+				$out .= fread($fp, 1024);
+			}
+
+			$pos = strpos($out, "<env:Text>");
+			if (false === $pos) {
+				echo $out;
+				goto cleanup;
+			}
+			$pos0 = $pos + strlen("<env:Text>");
+			$pos = strpos($out, "</env:Text>");
+			if (false === $pos) {
+				echo $out;
+				goto cleanup;
+			}
+			$len = $pos - $pos0;
+			echo substr($out, $pos0, $len);
+		}
+
+cleanup:
+		fclose($fp);
+
+		echo "\n\n";
+		}
+}
+
+proc_terminate($handle);
+
+?>
+==DONE==
+--CLEAN--
+<?php
+unlink(dirname(__FILE__) . DIRECTORY_SEPARATOR . "bug73037_server.php");
+?>
+--EXPECT--
+Iteration 0
+
+Function 'CATALOG' doesn't exist
+
+Function 'CATALOG' doesn't exist
+
+Iteration 1
+
+Function 'CATALOG' doesn't exist
+
+Function 'CATALOG' doesn't exist
+
+Iteration 2
+
+Function 'CATALOG' doesn't exist
+
+Function 'CATALOG' doesn't exist
+
+Iteration 3
+
+Function 'CATALOG' doesn't exist
+
+Function 'CATALOG' doesn't exist
+
+Iteration 4
+
+Function 'CATALOG' doesn't exist
+
+Function 'CATALOG' doesn't exist
+
+Iteration 5
+
+Function 'CATALOG' doesn't exist
+
+Function 'CATALOG' doesn't exist
+
+Iteration 6
+
+Function 'CATALOG' doesn't exist
+
+Function 'CATALOG' doesn't exist
+
+==DONE==
diff --git a/main/streams/streams.c b/main/streams/streams.c
index 4e00cd1be39..4446f9ecd58 100644
--- a/main/streams/streams.c
+++ b/main/streams/streams.c
@@ -1289,7 +1289,7 @@ PHPAPI int _php_stream_seek(php_stream *stream, off_t offset, int whence TSRMLS_
 				}
 				break;
 			case SEEK_SET:
-				if (offset > stream->position &&
+				if (offset >= stream->position &&
 						offset <= stream->position + stream->writepos - stream->readpos) {
 					stream->readpos += offset - stream->position;
 					stream->position = offset;