Commit:    283f56af6696f57400bdbf8ce29ee66e64249c0d
Author:    Adam Harvey <ahar...@php.net>         Wed, 19 Jun 2013 11:32:37 -0700
Parents:   b5978e239ee308e425843e40eb6ab2a9f0beba83
Branches:  PHP-5.4 PHP-5.5 master

Link:       
http://git.php.net/?p=php-src.git;a=commitdiff;h=283f56af6696f57400bdbf8ce29ee66e64249c0d

Log:
Change the search in get_status_string() to correctly handle unknown codes.

This previously used a buggy implementation of binary search that would loop
infinitely for unknown codes when searching in reason arrays of particular
sizes (such as the one we have at the moment). Since C provides bsearch(),
we'll just use that instead, since libc authors hopefully get this right.

There was also an additional bug that was masked by the first one: the design
was that an unknown code would result in get_status_string() returning NULL,
which would then result in a segfault in append_http_status_line(), since it
assumed that it would always receive a valid string pointer that could be
handed off to smart_str_appends_ex(). We'll now return a placeholder in that
case.

Fixes bug #65066 (Cli server not responsive when responding with 422 http
status code).

Bugs:
https://bugs.php.net/65066

Changed paths:
  M  NEWS
  M  sapi/cli/php_cli_server.c
  A  sapi/cli/tests/bug65066_100.phpt
  A  sapi/cli/tests/bug65066_422.phpt
  A  sapi/cli/tests/bug65066_511.phpt


Diff:
diff --git a/NEWS b/NEWS
index 46fa7f0..9612928 100644
--- a/NEWS
+++ b/NEWS
@@ -2,6 +2,10 @@ PHP                                                            
            NEWS
 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 ?? ??? 2013, PHP 5.4.18
 
+- CLI server:
+  . Fixed bug #65066 (Cli server not responsive when responding with 422 http
+    status code). (Adam)
+
 ?? ??? 2013, PHP 5.4.17
 
 - Core:
diff --git a/sapi/cli/php_cli_server.c b/sapi/cli/php_cli_server.c
index 903f042..268beeb 100644
--- a/sapi/cli/php_cli_server.c
+++ b/sapi/cli/php_cli_server.c
@@ -20,6 +20,7 @@
 /* $Id: php_cli.c 306938 2011-01-01 02:17:06Z felipe $ */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <fcntl.h>
 #include <assert.h>
 
@@ -333,23 +334,38 @@ static char *get_last_error() /* {{{ */
        return pestrdup(strerror(errno), 1);
 } /* }}} */
 
+static int status_comp(const void *a, const void *b) /* {{{ */
+{
+       const php_cli_server_http_reponse_status_code_pair *pa = (const 
php_cli_server_http_reponse_status_code_pair *) a;
+       const php_cli_server_http_reponse_status_code_pair *pb = (const 
php_cli_server_http_reponse_status_code_pair *) b;
+
+       if (pa->code < pb->code) {
+               return -1;
+       } else if (pa->code > pb->code) {
+               return 1;
+       }
+
+       return 0;
+} /* }}} */
+
 static const char *get_status_string(int code) /* {{{ */
 {
-       size_t e = (sizeof(status_map) / 
sizeof(php_cli_server_http_reponse_status_code_pair));
-       size_t s = 0;
+       php_cli_server_http_reponse_status_code_pair needle, *result = NULL;
 
-       while (e != s) {
-               size_t c = MIN((e + s + 1) / 2, e - 1);
-               int d = status_map[c].code;
-               if (d > code) {
-                       e = c;
-               } else if (d < code) {
-                       s = c;
-               } else {
-                       return status_map[c].str;
-               }
+       needle.code = code;
+       needle.str = NULL;
+
+       result = bsearch(&needle, status_map, sizeof(status_map) / 
sizeof(needle), sizeof(needle), status_comp);
+
+       if (result) {
+               return result->str;
        }
-       return NULL;
+
+       /* Returning NULL would require complicating append_http_status_line() 
to
+        * not segfault in that case, so let's just return a placeholder, since 
RFC
+        * 2616 requires a reason phrase. This is basically what a lot of other 
Web
+        * servers do in this case anyway. */
+       return "Unknown Status Code";
 } /* }}} */
 
 static const char *get_template_string(int code) /* {{{ */
diff --git a/sapi/cli/tests/bug65066_100.phpt b/sapi/cli/tests/bug65066_100.phpt
new file mode 100644
index 0000000..3a97c7e
--- /dev/null
+++ b/sapi/cli/tests/bug65066_100.phpt
@@ -0,0 +1,39 @@
+--TEST--
+Bug #65066 (Cli server not responsive when responding with 422 http status 
code): 100 status code
+--INI--
+allow_url_fopen=1
+--SKIPIF--
+<?php
+include "skipif.inc"; 
+?>
+--FILE--
+<?php
+include "php_cli_server.inc";
+php_cli_server_start('http_response_code(100);');
+
+list($host, $port) = explode(':', PHP_CLI_SERVER_ADDRESS);
+$port = intval($port)?:80;
+
+$fp = fsockopen($host, $port, $errno, $errstr, 0.5);
+if (!$fp) {
+  die("connect failed");
+}
+
+if(fwrite($fp, <<<HEADER
+GET / HTTP/1.1
+Host: {$host}
+
+
+HEADER
+)) {
+       while (!feof($fp)) {
+               echo fgets($fp);
+       }
+}
+?>
+--EXPECTF--
+HTTP/1.1 100 Continue
+Host: %s
+Connection: close
+X-Powered-By: PHP/%s
+Content-type: text/html
diff --git a/sapi/cli/tests/bug65066_422.phpt b/sapi/cli/tests/bug65066_422.phpt
new file mode 100644
index 0000000..2552d1d
--- /dev/null
+++ b/sapi/cli/tests/bug65066_422.phpt
@@ -0,0 +1,39 @@
+--TEST--
+Bug #65066 (Cli server not responsive when responding with 422 http status 
code): 422 status code
+--INI--
+allow_url_fopen=1
+--SKIPIF--
+<?php
+include "skipif.inc"; 
+?>
+--FILE--
+<?php
+include "php_cli_server.inc";
+php_cli_server_start('http_response_code(422);');
+
+list($host, $port) = explode(':', PHP_CLI_SERVER_ADDRESS);
+$port = intval($port)?:80;
+
+$fp = fsockopen($host, $port, $errno, $errstr, 0.5);
+if (!$fp) {
+  die("connect failed");
+}
+
+if(fwrite($fp, <<<HEADER
+GET / HTTP/1.1
+Host: {$host}
+
+
+HEADER
+)) {
+       while (!feof($fp)) {
+               echo fgets($fp);
+       }
+}
+?>
+--EXPECTF--
+HTTP/1.1 422 Unknown Status Code
+Host: %s
+Connection: close
+X-Powered-By: PHP/%s
+Content-type: text/html
diff --git a/sapi/cli/tests/bug65066_511.phpt b/sapi/cli/tests/bug65066_511.phpt
new file mode 100644
index 0000000..aa4a9a0
--- /dev/null
+++ b/sapi/cli/tests/bug65066_511.phpt
@@ -0,0 +1,39 @@
+--TEST--
+Bug #65066 (Cli server not responsive when responding with 422 http status 
code): 511 status code
+--INI--
+allow_url_fopen=1
+--SKIPIF--
+<?php
+include "skipif.inc"; 
+?>
+--FILE--
+<?php
+include "php_cli_server.inc";
+php_cli_server_start('http_response_code(511);');
+
+list($host, $port) = explode(':', PHP_CLI_SERVER_ADDRESS);
+$port = intval($port)?:80;
+
+$fp = fsockopen($host, $port, $errno, $errstr, 0.5);
+if (!$fp) {
+  die("connect failed");
+}
+
+if(fwrite($fp, <<<HEADER
+GET / HTTP/1.1
+Host: {$host}
+
+
+HEADER
+)) {
+       while (!feof($fp)) {
+               echo fgets($fp);
+       }
+}
+?>
+--EXPECTF--
+HTTP/1.1 511 Network Authentication Required
+Host: %s
+Connection: close
+X-Powered-By: PHP/%s
+Content-type: text/html


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