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wikihttpd.php
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wikihttpd.php
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<?php
//
// MoniWiki Web Server by Won-kyu Park <wkpark at kldp.org>
//
// * phpserv is a PhpLanguage based webserver
// Copyright (C) 2002 Daniel Lorch <daniel at lorch.cc>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
/*
* Implementation of the HTT-protocol (also known as Webserver)
*
* This is a quite simple webserver. It can serve static files but
* nothing more. I carefully check every request to not serve
* files which are outside the document root and I also try to be
* as "RFC-ish" as possible. For example I send back the correct
* MIME-type (according to the file extension), but there is not
* yet a support for multiple, succeding requests in one connection
* (Connection: Keep-Alive). Also file-resuming is not yet
* implemented.
*
*/
if (!empty($_SERVER['SERVER_SOFTWARE']) || !isset($argv) || $argv[0] != 'wikihttpd.php') {
echo '<html><head></head><body><h2>Invalid request</h2></body></html>';
exit;
}
class simple_server {
var $runing=false;
var $document_root;
var $directory_index='index.html';
var $servername = "MoniWiki/1.1 Server";
var $wiki_prefix = "/wiki/";
function __construct($address=0,$port=8080,$root='htdocs') {
@set_time_limit(0);
$this->document_root=$root;
if($this->pre_init() === false)
return false;
if(($this->socket = socket_create(AF_INET, SOCK_STREAM, 0)) < 0)
return false;
if(@socket_bind($this->socket, $address, $port) < 0)
return false;
if(@socket_listen($this->socket, 5)< 0)
return false;
# $this->error_handle = @fopen($this->error_file, "a");
# if(!$this->error_handle)
# return false;
# $this->log_handle = @fopen($this->log_file, "a");
# if(!$this->log_handle)
# return false;
if($this->post_init() === false)
return false;
register_shutdown_function(array(&$this,'close'));
return $this->running = true;
}
/* public: this is the absolutely first function called in the constructor.
be careful! you still have superuser privileges at this stage */
function pre_init() {
return true;
}
/* public: this function is called after everything is set up
(server has bind it's port etc..) */
function post_init() {
return true;
}
function read($size, $mode=PHP_BINARY_READ) {
return socket_read($this->child, $size, $mode);
}
/* public: use this function to write to the socket */
function write($data) {
return socket_write($this->child, $data, strlen($data));
}
function get_request() {
// handle request
while(($buf= $this->read(2048)) !== false) {
$request_headers.= $buf;
#if(preg_match("'\r\n\r\n$'s", $request_headers))
if(strstr($request_headers,"\r\n\r\n"))
break;
}
# M$IE bug workaround XXX
if (!preg_match("'\r\n\r\n$'s", $request_headers)) {
list($request_headers,$content) = explode("\r\n\r\n", $request_headers);
$this->content=$content;
}
$request_headers = explode("\r\n", $request_headers);
// parse
list($request,$data) = $this->parse_request($request_headers);
return array($request,$data);
}
function process($request) {
// now respond
$today= gmdate("D, d M Y G:i:s")." GMT";
if(!$this->is_path_allowed($request['PATH_TRANSLATED'])) {
$header="HTTP/1.0 403 Forbidden\r\n".
"Date: $today\r\n".
"Server: ".$this->servername."\r\n".
"Connection: close\r\n".
"Content-type: text/html\r\n\r\n";
$this->write($header);
$html="<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">
<head>
<style>
h1 {font-family:tahoma,verdana,sans-serif;}
</style>
</head>
<body><h1>Forbidden</h1>
<p>You performed an illegal request $request[REQUEST_URI]</p>
<address>$this->servername</address></body></html>\n";
$this->write($html);
} else {
// if user requests a directory search for directory index file
if(is_dir($request['PATH_TRANSLATED'])) {
if(file_exists($this->strip_trailing_slash($request['PATH_TRANSLATED']) . '/' . $this->directory_index)) {
$request['PATH_TRANSLATED'].= '/'.$this->directory_index;
}
}
if(file_exists($request['PATH_TRANSLATED']) && is_file($request['PATH_TRANSLATED'])) {
$mime=$this->mime_type($this->file_ext($request['PATH_TRANSLATED']));
$header="HTTP/1.0 200 OK\r\n".
"Date: $today\r\n".
"Server: ".$this->servername."\r\n".
"Connection: close\r\n".
"Content-type: ".$mime."\r\n\r\n";
/* We're not yet supporting Keep-Alive connections */
$this->write($header);
$fp= fopen($request['PATH_TRANSLATED'], "r");
if ($fp) {
while(!feof($fp) && ($this->write(fread($fp, 2048)) !== false));
fclose($fp);
}
} else {
$header="HTTP/1.0 404 Not Found\r\n".
"Date: $today\r\n".
"Server: ".$this->servername."\r\n".
"Connection: close\r\n".
"Content-type: text/html\r\n\r\n";
$this->write($header);
$html="<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">
<html><head><title>404 Not Found</title>
<style>
h1 {font-family:tahoma,verdana,sans-serif;}
</style>
</head><body>
<h1>404 Not Found</h1>
<p>The request URL $request[REQUEST_URI] was not found on this server.</p>
<hr />
<address>$this->servername</address>
</body></html>\n";
$this->write($html);
}
}
#$this->log("[".$remote_addr."] ".$request['REQUEST_METHOD'].
# " ".$request['REQUEST_URI']);
#print("[".$remote_addr."] ".$request['REQUEST_METHOD'].
# " ".$request['REQUEST_URI']);
#print("\n");
}
function parse_request($request) {
if(preg_match("'^(GET|POST) ([^ ]+) (HTTP/[^ ]+)$'", $request[0], $matches))
;
else if(preg_match("'^(GET|POST) ([^ ]+)$'", $request[0], $matches)) {
$matches[]='HTTP/1.0';
print_r($matches);
} else {
return false;
}
list(, $req['REQUEST_METHOD'], $req['REQUEST_URI'], $req['SERVER_PROTOCOL']) = $matches;
#print $request[0]."\n";
if(($p = $this->parse_path($req['REQUEST_URI'])) !== false) {
$req['PATH_INFO'] = $p['PATH_INFO'];
$req['QUERY_STRING'] = $p['QUERY_STRING'];
$req['PATH_TRANSLATED'] = $this->condense_path($this->document_root . $req['REQUEST_URI']);
}
if (substr($req['REQUEST_URI'],0,strlen($this->wiki_prefix)) ==
$this->wiki_prefix) {
$req['SCRIPT_NAME']= substr($this->wiki_prefix,0,-1);
}
$remote_ip=getenv('REMOTE_ADDR');
if (!$remote_ip) $req['REMOTE_ADDR']="127.0.0.1";
else $req['REMOTE_ADDR']=$remote_ip;
unset($request[0]);
foreach ($request as $line) {
if (!$line) continue;
$key=strtoupper(strtok($line,":"));
$val=trim(strtok(""));
$HTTP[$key]=$val;
}
#print $HTTP['CONTENT-LENGTH']."\n";
if ($HTTP['CONTENT-LENGTH']) {
if (strpos($HTTP['USER-AGENT'],'MSIE') > 0) {
if ($this->content) {
$content=$this->content;
$this->content='';
} else {
$content= $this->read($HTTP['CONTENT-LENGTH']);
# M$IE bug workaround XXX
# emit trailing garbage
$dummy= $this->read(1024);
}
} else {
$content= $this->read($HTTP['CONTENT-LENGTH']);
}
}
if ($req['REQUEST_METHOD']=='POST') {
if ($HTTP['CONTENT-TYPE']!='application/x-www-form-urlencoded') {
$GLOBALS['HTTP_RAW_POST_DATA']=$content;
} else {
parse_str($content,$data);
}
}
$req=array_merge($HTTP,$req);
return array($req,$data);
}
function parse_path(&$path) {
if(!preg_match("'([^?]*)(?:\?([^#]*))?(?:#.*)? *'", $path, $matches))
return false;
list(, $p['PATH_INFO'], $p['QUERY_STRING']) = $matches;
if (!file_exists($this->document_root.$path)) {
$new_uri=$path;
while(!@is_file($this->document_root.$new_uri) && $new_uri) {
$new_uri=substr($new_uri, 0, strrpos($new_uri, "/"));
}
}
if ($new_uri) {
// Path_info found
$p['PATH_INFO']=substr($path, strlen($new_uri));
$path=$new_uri;
}
return $p;
}
function condense_path($path) {
while (preg_match("'/[^/]+/\.\./'" , $path))
$path = preg_replace("'/[^/]+/\.\./'", "/", $path);
return $path;
}
function is_path_allowed($path) {
return strpos($path, $this->document_root) === 0;
}
function strip_trailing_slash($path) {
if (preg_match("'(.*?)/?$'", $path, $matches))
return $matches[1];
}
function file_ext($path) {
if (!preg_match("'\.([^/.]+)$'", $path, $matches))
return '';
return $matches[1];
}
function mime_type($ext) {
switch($ext) {
case 'hqx':
return 'application/mac-binhex40';
case 'cpt':
return 'application/mac-compactpro';
case 'doc':
return 'application/msword';
case 'bin':
case 'dms':
case 'lha':
case 'lzh':
case 'exe':
case 'class':
case 'so':
case 'dll':
return 'application/octet-stream';
case 'oda':
return 'application/oda';
case 'pdf':
return 'application/pdf';
case 'ai':
case 'eps':
case 'ps':
return 'application/postscript';
case 'smi':
case 'smil':
return 'application/smil';
case 'xls':
return 'application/ms-excel';
case 'ppt':
return 'application/vnd.ms-powerpoint';
case 'wbxml':
return 'application/vnd.wap.wbxml';
case 'wmlc':
return 'application/vnd.wap.wmlc';
case 'wmlsc':
return 'application/vnd.wap.wmlscriptc';
case 'bcpio':
return 'application/x-bcpio';
case 'vcd':
return 'application/x-cdlink';
case 'pgn':
return 'application/x-chess-pgn';
case 'cpio':
return 'application/x-cpio';
case 'csh':
return 'application/x-csh';
case 'dcr':
case 'dir':
case 'dxr':
return 'application/x-director';
case 'dvi':
return 'application/x-dvi';
case 'spl':
return 'application/x-futuresplash';
case 'gtar':
return 'application/x-gtar';
case 'hdf':
return 'application/x-hdf';
case 'js':
return 'application/x-javascript';
case 'skp':
case 'skd':
case 'skt':
case 'skm':
return 'application/x-koan';
case 'latex':
return 'application/x-latex';
case 'nc':
case 'cdf':
return 'application/x-netcdf';
case 'sh':
return 'application/x-sh';
case 'shar':
return 'application/x-shar';
case 'swf':
return 'application/x-shockwave-flash';
case 'sit':
return 'application/x-stuffit';
case 'sv4cpio':
return 'application/x-sv4cpio';
case 'sv4crc':
return 'application/x-sv4crc';
case 'tar':
return 'application/x-tar';
case 'tcl':
return 'application/x-tcl';
case 'tex':
return 'application/x-tex';
case 'texinfo':
case 'texi':
return 'application/x-texinfo';
case 't':
case 'tr':
case 'troff':
return 'application/x-troff';
case 'man':
return 'application/x-troff-man';
case 'me':
return 'application/x-troff-me';
case 'ms':
return 'application/x-troff-ms';
case 'ustar':
return 'application/x-ustar';
case 'src':
return 'application/x-wais-source';
case 'zip':
return 'application/zip';
case 'au':
case 'snd':
return 'audio/basic';
case 'mid':
case 'midi':
case 'kar':
return 'audio/midi';
case 'mpga':
case 'mp2':
case 'mp3':
return 'audio/mpeg';
case 'aif':
case 'aiff':
case 'aifc':
return 'audio/x-aiff';
case 'm3u':
return 'audio/x-mpegurl';
case 'ram':
case 'rm':
return 'audio/x-pn-realaudio';
case 'rpm':
return 'audio/x-pn-realaudio-plugin';
case 'ra':
return 'audio/x-realaudio';
case 'wav':
return 'audio/x-wav';
case 'pdb':
return 'chemical/x-pdb';
case 'xyz':
return 'chemical/x-xyz';
case 'bmp':
return 'image/bmp';
case 'gif':
return 'image/gif';
case 'ief':
return 'image/ief';
case 'jpeg':
case 'jpg':
case 'jpe':
return 'image/jpeg';
case 'png':
return 'image/png';
case 'tiff':
case 'tif':
return 'image/tiff';
case 'wbmp':
return 'image/vnd.wap.wbmp';
case 'ras':
return 'image/x-cmu-raster';
case 'pnm':
return 'image/x-portable-anymap';
case 'pbm':
return 'image/x-portable-bitmap';
case 'pgm':
return 'image/x-portable-graymap';
case 'ppm':
return 'image/x-portable-pixmap';
case 'rgb':
return 'image/x-rgb';
case 'xbm':
return 'image/x-xbitmap';
case 'xpm':
return 'image/xpixmap';
case 'xwd':
return 'image/xwindowdump';
case 'igs':
case 'iges':
return 'model/iges';
case 'msh':
case 'mesh':
case 'silo':
return 'model/mesh';
case 'wrl':
case 'vrml':
return 'model/vrml';
case 'css':
return 'text/css';
case 'html':
case 'htm':
return 'text/html';
case 'asc':
case 'txt':
return 'text/plain';
case 'rtx':
return 'text/richtext';
case 'rtf':
return 'text/rtf';
case 'sgml':
case 'sgm':
return 'text/sgml';
case 'tsv':
return 'text/tab-seperated-values';
case 'wml':
return 'text/vnd.wap.wml';
case 'wmls':
return 'text/vnd.wap.wmlscript';
case 'etx':
return 'text/x-setext';
case 'xml':
case 'xsl':
return 'text/xml';
case 'mpeg':
case 'mpg':
case 'mpe':
return 'video/mpeg';
case 'qt':
case 'mov':
return 'video/quicktime';
case 'mxu':
return 'video/vnd.mpegurl';
case 'avi':
return 'video/x-msvideo';
case 'movie':
return 'video/x-sgi-movie';
case 'ice':
return 'x-conference/x-cooltalk';
default:
return 'text/plain';
}
}
/* public: log messages */
function log($message) {
fputs($this->log_handle, $message . "\n");
}
/* public: log errors */
function log_error($message) {
fputs($this->error_handle, $message . "\n");
}
function loop() {
do {
if (($child = socket_accept($this->socket)) < 0) {
echo "socket_accept() failed: reason: ".socket_strerror($msgsock)."\n";
break;
}
$this->child=$child;
list($request,$data)=$this->get_request();
$this->process($request);
#socket_shutdown($this->child);
socket_close($this->child);
} while(true);
}
function close() {
socket_close ($this->socket);
}
} // end of simple_server
echo "MoniWiki Web Server !\r\n";
ob_implicit_flush();
#$httpd=new simple_server('localhost',8080,"c:\htdocs");
define('INC_MONIWIKI', 1);
# Start Main
require_once("wiki.php");
$Config = getConfig('config.php', array('init'=>1));
require_once("wikilib.php");
require_once("lib/win32fix.php");
require_once("lib/wikiconfig.php");
require_once("lib/cache.text.php");
require_once("lib/timer.php");
$options = array();
if (class_exists('Timer')) {
$timing = new Timer();
$options['timer'] = &$timing;
$options['timer']->Check("load");
}
$ccache = new Cache_text('settings', array('depth'=>0));
if (!($conf = $ccache->fetch('config'))) {
$Config = wikiConfig($Config);
$ccache->update('config', $Config, 0, array('deps'=>array('config.php', 'lib/wikiconfig.php')));
} else {
$Config = &$conf;
}
$DBInfo= new WikiDB($Config);
if (isset($options['timer']) and is_object($options['timer'])) {
$options['timer']->Check("load");
}
$lang= set_locale($DBInfo->lang,$DBInfo->charset);
init_locale($lang);
init_requests($options);
if (!isset($options['pagename'][0])) $options['pagename']= get_frontpage($lang);
$DBInfo->lang=$lang;
$DBInfo->query_prefix='/';
if ($DBInfo->httpd_docs)
$httpd=new simple_server('localhost',8080,$DBInfo->httpd_docs);
else
$httpd=new simple_server('localhost',8080,"c:\htdocs");
$wiki_prefix= $httpd->wiki_prefix;
// Initialize Wiki
//$httpd->loop();
//
//exit;
do {
if (($child = socket_accept($httpd->socket)) < 0) {
echo "socket_accept() failed: reason: ".socket_strerror($msgsock)."\n";
break;
}
$httpd->child=$child;
$options['timer']=new Timer();
list($_SERVER,$data)=$httpd->get_request();
parse_str($_SERVER['QUERY_STRING'],$temp);
if ($_SERVER['REQUEST_METHOD']=='GET') {
$_GET=$temp;
} else if ($_SERVER['REQUEST_METHOD']=='POST') {
if ($data) $_POST=$data;
} else {
print "Invalid request error!\n";
}
if (substr($_SERVER['REQUEST_URI'],0,strlen($wiki_prefix)) == $wiki_prefix) {
# WikiPage
$today= gmdate("D, d M Y G:i:s")." GMT";
$mime="text/html";
$status="HTTP/1.0 200 OK\r\n";
$header="Date: $today\r\n".
"Server: ".$httpd->servername."\r\n".
"Connection: close\r\n".
"Content-type: ".$mime."\r\n";
/* We're not yet supporting Keep-Alive connections */
$pagename=urldecode(substr($_SERVER['PATH_INFO'],strlen($wiki_prefix)));
if (!$pagename) $pagename=$DBInfo->frontpage;
$options['pagename'] = $pagename;
ob_start();
wiki_main($options);
$html=ob_get_contents();
ob_end_clean();
# header hack XXX
$extra_header='';
if ($GLOBALS['http_header']) {
$extra_header=$GLOBALS['http_header'];
print($GLOBALS['http_header']);
}
if ($GLOBALS['http_status'])
$status="HTTP/1.0 ".$GLOBALS['http_status']."\r\n";
$GLOBALS['http_header']='';
$GLOBALS['http_status']='';
#
$httpd->write($status.$header.$extra_header."\r\n");
$httpd->write($html);
# print $html;
} else {
$httpd->process($_SERVER);
}
socket_close($httpd->child);
#socket_shutdown($httpd->child);
} while(true);