mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-18 05:53:24 +01:00
548 lines
15 KiB
PHP
548 lines
15 KiB
PHP
<?php
|
|
/**************************************************************************\
|
|
* eGroupWare API - HTTP protocol class *
|
|
* http://www.egroupware.org/api *
|
|
* ------------------------------------------------------------------------ *
|
|
* This is not part of eGroupWare, but is used by eGroupWare. *
|
|
* ------------------------------------------------------------------------ *
|
|
* 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. *
|
|
\**************************************************************************/
|
|
|
|
/* $Id$ */
|
|
|
|
class http
|
|
{
|
|
var $host_name = '';
|
|
var $host_port = 80;
|
|
var $proxy_host_name = '';
|
|
var $proxy_host_port = 80;
|
|
|
|
var $request_method = 'GET';
|
|
var $user_agent = 'Manuel Lemos HTTP class test script';
|
|
var $request_uri = '';
|
|
var $protocol_version = '1.0';
|
|
var $debug = 0;
|
|
var $support_cookies = 1;
|
|
var $cookies = array();
|
|
|
|
/* private variables - DO NOT ACCESS */
|
|
|
|
var $state = 'Disconnected';
|
|
var $connection = 0;
|
|
var $content_length = 0;
|
|
var $read_length = 0;
|
|
var $request_host = '';
|
|
var $months = array(
|
|
'Jan' => '01',
|
|
'Feb' => '02',
|
|
'Mar' => '03',
|
|
'Apr' => '04',
|
|
'May' => '05',
|
|
'Jun' => '06',
|
|
'Jul' => '07',
|
|
'Aug' => '08',
|
|
'Sep' => '09',
|
|
'Oct' => '10',
|
|
'Nov' => '11',
|
|
'Dec' => '12'
|
|
);
|
|
|
|
/* Private methods - DO NOT CALL */
|
|
|
|
function OutputDebug($message)
|
|
{
|
|
echo $message,"\n";
|
|
}
|
|
|
|
function GetLine()
|
|
{
|
|
for($line='';;)
|
|
{
|
|
if(feof($this->connection) || !($part=fgets($this->connection,100)))
|
|
{
|
|
return(0);
|
|
}
|
|
$line.=$part;
|
|
$length=strlen($line);
|
|
if($length>=2 && substr($line,$length-2,2)=="\r\n")
|
|
{
|
|
$line=substr($line,0,$length-2);
|
|
if($this->debug)
|
|
{
|
|
$this->OutputDebug("< $line");
|
|
}
|
|
return($line);
|
|
}
|
|
}
|
|
}
|
|
|
|
function PutLine($line)
|
|
{
|
|
if($this->debug)
|
|
{
|
|
$this->OutputDebug("> $line");
|
|
}
|
|
return(fputs($this->connection,"$line\r\n"));
|
|
}
|
|
|
|
function PutData($data)
|
|
{
|
|
if($this->debug)
|
|
{
|
|
$this->OutputDebug("> $data");
|
|
}
|
|
return(fputs($this->connection,$data));
|
|
}
|
|
|
|
function Readbytes($length)
|
|
{
|
|
if($this->debug)
|
|
{
|
|
if(($bytes=fread($this->connection,$length))!="")
|
|
{
|
|
$this->OutputDebug("< $bytes");
|
|
}
|
|
return($bytes);
|
|
}
|
|
else
|
|
{
|
|
return(fread($this->connection,$length));
|
|
}
|
|
}
|
|
|
|
function EndOfInput()
|
|
{
|
|
return(feof($this->connection));
|
|
}
|
|
|
|
function Connect($host_name,$host_port)
|
|
{
|
|
if($this->debug)
|
|
{
|
|
$this->OutputDebug("Connecting to $host_name...");
|
|
}
|
|
if(($this->connection=fsockopen($host_name,$host_port,&$error))==0)
|
|
{
|
|
switch($error)
|
|
{
|
|
case -3:
|
|
return('-3 socket could not be created');
|
|
case -4:
|
|
return('-4 dns lookup on hostname "'.$host_name.'" failed');
|
|
case -5:
|
|
return('-5 connection refused or timed out');
|
|
case -6:
|
|
return('-6 fdopen() call failed');
|
|
case -7:
|
|
return('-7 setvbuf() call failed');
|
|
default:
|
|
return($error.' could not connect to the host "'.$host_name.'"');
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if($this->debug)
|
|
{
|
|
$this->OutputDebug("Connected to $host_name");
|
|
}
|
|
$this->state='Connected';
|
|
return("");
|
|
}
|
|
}
|
|
|
|
function Disconnect()
|
|
{
|
|
if($this->debug)
|
|
{
|
|
$this->OutputDebug('Disconnected from '.$this->host_name);
|
|
}
|
|
fclose($this->connection);
|
|
return('');
|
|
}
|
|
|
|
/* Public methods */
|
|
|
|
function Open($arguments)
|
|
{
|
|
if($this->state!='Disconnected')
|
|
{
|
|
return('1 already connected');
|
|
}
|
|
if(IsSet($arguments['HostName']))
|
|
{
|
|
$this->host_name=$arguments['HostName'];
|
|
}
|
|
if(IsSet($arguments['HostPort']))
|
|
{
|
|
$this->host_port=$arguments['HostPort'];
|
|
}
|
|
if(IsSet($arguments['ProxyHostName']))
|
|
{
|
|
$this->proxy_host_name=$arguments['ProxyHostName'];
|
|
}
|
|
if(IsSet($arguments['ProxyHostPort']))
|
|
{
|
|
$this->proxy_host_port=$arguments['ProxyHostPort'];
|
|
}
|
|
if(strlen($this->proxy_host_name)==0)
|
|
{
|
|
if(strlen($this->host_name)==0)
|
|
{
|
|
return('2 it was not specified a valid hostname');
|
|
}
|
|
$host_name = $this->host_name;
|
|
$host_port = $this->host_port;
|
|
}
|
|
else
|
|
{
|
|
$host_name = $this->proxy_host_name;
|
|
$host_port = $this->proxy_host_port;
|
|
}
|
|
$error = $this->Connect($host_name,$host_port);
|
|
if(strlen($error)==0)
|
|
{
|
|
$this->state = 'Connected';
|
|
}
|
|
return($error);
|
|
}
|
|
|
|
function Close()
|
|
{
|
|
if($this->state == 'Disconnected')
|
|
{
|
|
return('1 already disconnected');
|
|
}
|
|
$error = $this->Disconnect();
|
|
if(strlen($error) == 0)
|
|
{
|
|
$this->state = 'Disconnected';
|
|
}
|
|
return($error);
|
|
}
|
|
|
|
function SendRequest($arguments)
|
|
{
|
|
switch($this->state)
|
|
{
|
|
case 'Disconnected':
|
|
return('1 connection was not yet established');
|
|
case 'Connected':
|
|
break;
|
|
default:
|
|
return('2 can not send request in the current connection state');
|
|
}
|
|
if(IsSet($arguments['RequestMethod']))
|
|
{
|
|
$this->request_method = $arguments['RequestMethod'];
|
|
}
|
|
if(IsSet($arguments['User-Agent']))
|
|
{
|
|
$this->user_agent = $arguments['User-Agent'];
|
|
}
|
|
if(strlen($this->request_method) == 0)
|
|
{
|
|
return('3 it was not specified a valid request method');
|
|
}
|
|
if(IsSet($arguments['RequestURI']))
|
|
{
|
|
$this->request_uri = $arguments['RequestURI'];
|
|
}
|
|
if(strlen($this->request_uri) == 0 || substr($this->request_uri,0,1) != '/')
|
|
{
|
|
return('4 it was not specified a valid request URI');
|
|
}
|
|
$request_body = '';
|
|
$headers=(IsSet($arguments['Headers']) ? $arguments['Headers'] : array());
|
|
if($this->request_method == 'POST')
|
|
{
|
|
if(IsSet($arguments['PostValues']))
|
|
{
|
|
$values = $arguments['PostValues'];
|
|
if(!@is_array($values))
|
|
{
|
|
return('5 it was not specified a valid POST method values array');
|
|
}
|
|
for($request_body = '',Reset($values),$value=0;$value<count($values);Next($values),$value++)
|
|
{
|
|
if($value>0)
|
|
{
|
|
$request_body .= '&';
|
|
}
|
|
$request_body.=Key($values).'='.UrlEncode($values[Key($values)]);
|
|
}
|
|
$headers['Content-type'] = 'application/x-www-form-urlencoded';
|
|
}
|
|
}
|
|
if(strlen($this->proxy_host_name) == 0)
|
|
{
|
|
$request_uri = $this->request_uri;
|
|
}
|
|
else
|
|
{
|
|
$request_uri = 'http://'.$this->host_name.($this->host_port==80 ? '' : ':'.$this->host_port).$this->request_uri;
|
|
}
|
|
if(($success = $this->PutLine($this->request_method.' '.$request_uri.' HTTP/'.$this->protocol_version)))
|
|
{
|
|
if(($body_length = strlen($request_body)))
|
|
{
|
|
$headers['Content-length'] = $body_length;
|
|
}
|
|
for($host_set=0,Reset($headers),$header=0;$header<count($headers);Next($headers),$header++)
|
|
{
|
|
$header_name = Key($headers);
|
|
$header_value = $headers[$header_name];
|
|
if(@is_array($header_value))
|
|
{
|
|
for(Reset($header_value),$value=0;$value<count($header_value);Next($header_value),$value++)
|
|
{
|
|
if(!$success = $this->PutLine("$header_name: ".$header_value[Key($header_value)]))
|
|
{
|
|
break 2;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(!$success = $this->PutLine("$header_name: $header_value"))
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
if(strtolower(Key($headers)) == 'host')
|
|
{
|
|
$this->request_host = strtolower($header_value);
|
|
$host_set = 1;
|
|
}
|
|
}
|
|
if($success)
|
|
{
|
|
if(!$host_set)
|
|
{
|
|
$success = $this->PutLine('Host: '.$this->host_name);
|
|
$this->request_host = strtolower($this->host_name);
|
|
}
|
|
if(count($this->cookies) && IsSet($this->cookies[0]))
|
|
{
|
|
$now = gmdate('Y-m-d H-i-s');
|
|
for($cookies = array(),$domain=0,Reset($this->cookies[0]);$domain<count($this->cookies[0]);Next($this->cookies[0]),$domain++)
|
|
{
|
|
$domain_pattern = Key($this->cookies[0]);
|
|
$match = strlen($this->request_host)-strlen($domain_pattern);
|
|
if($match >= 0 &&
|
|
!strcmp($domain_pattern,substr($this->request_host,$match)) &&
|
|
($match == 0 || $domain_pattern[0] == '.' || $this->request_host[$match-1] == '.'))
|
|
{
|
|
for(Reset($this->cookies[0][$domain_pattern]),$path_part=0;$path_part<count($this->cookies[0][$domain_pattern]);Next($this->cookies[0][$domain_pattern]),$path_part++)
|
|
{
|
|
$path = Key($this->cookies[0][$domain_pattern]);
|
|
if(strlen($this->request_uri) >= strlen($path) && substr($this->request_uri,0,strlen($path)) == $path)
|
|
{
|
|
for(Reset($this->cookies[0][$domain_pattern][$path]),$cookie = 0;$cookie<count($this->cookies[0][$domain_pattern][$path]);Next($this->cookies[0][$domain_pattern][$path]),$cookie++)
|
|
{
|
|
$cookie_name = Key($this->cookies[0][$domain_pattern][$path]);
|
|
$expires = $this->cookies[0][$domain_pattern][$path][$cookie_name]['expires'];
|
|
if($expires == '' || strcmp($now,$expires)<0)
|
|
{
|
|
$cookies[$cookie_name] = $this->cookies[0][$domain_pattern][$path][$cookie_name];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
for(Reset($cookies),$cookie=0;$cookie<count($cookies);Next($cookies),$cookie++)
|
|
{
|
|
$cookie_name = Key($cookies);
|
|
if(!($success = $this->PutLine('Cookie: '.UrlEncode($cookie_name).'='.$cookies[$cookie_name]['value'].';')))
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if($success)
|
|
{
|
|
if($success)
|
|
{
|
|
$success = $this->PutLine('');
|
|
if($body_length && $success)
|
|
{
|
|
$success = $this->PutData($request_body);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if(!$success)
|
|
{
|
|
return('5 could not send the HTTP request');
|
|
}
|
|
$this->state = 'RequestSent';
|
|
return('');
|
|
}
|
|
|
|
function ReadReplyHeaders(&$headers)
|
|
{
|
|
switch($this->state)
|
|
{
|
|
case 'Disconnected':
|
|
return('1 connection was not yet established');
|
|
case 'Connected':
|
|
return('2 request was not sent');
|
|
case 'RequestSent':
|
|
break;
|
|
default:
|
|
return('3 can not get request headers in the current connection state');
|
|
}
|
|
$headers = array();
|
|
$this->content_length = $this->read_length = 0;
|
|
$this->content_length_set = 0;
|
|
for(;;)
|
|
{
|
|
$line = $this->GetLine();
|
|
if(!is_string($line))
|
|
{
|
|
return('4 could not read request reply');
|
|
}
|
|
if($line == '')
|
|
{
|
|
$this->state = 'GotReplyHeaders';
|
|
return('');
|
|
}
|
|
$header_name = strtolower(strtok($line,':'));
|
|
$header_value = Trim(Chop(strtok("\r\n")));
|
|
if(IsSet($headers[$header_name]))
|
|
{
|
|
if(is_string($headers[$header_name]))
|
|
{
|
|
$headers[$header_name] = array($headers[$header_name]);
|
|
}
|
|
$headers[$header_name][] = $header_value;
|
|
}
|
|
else
|
|
{
|
|
$headers[$header_name] = $header_value;
|
|
}
|
|
switch($header_name)
|
|
{
|
|
case 'content-length':
|
|
$this->content_length = (int)$headers[$header_name];
|
|
$this->content_length_set = 1;
|
|
break;
|
|
case 'set-cookie':
|
|
if($this->support_cookies)
|
|
{
|
|
$cookie_name = trim(strtok($headers[$header_name],'='));
|
|
$cookie_value = strtok(';');
|
|
$domain = $this->request_host;
|
|
$path = '/';
|
|
$expires = '';
|
|
$secure = 0;
|
|
while(($name=strtolower(trim(strtok('=')))) != '')
|
|
{
|
|
$value=UrlDecode(strtok(';'));
|
|
switch($name)
|
|
{
|
|
case 'domain':
|
|
if($value == '' || !strpos($value,'.',$value[0] == '.'))
|
|
{
|
|
break;
|
|
}
|
|
$domain = strtolower($value);
|
|
break;
|
|
case 'path':
|
|
if($value != '' && $value[0] == '/')
|
|
{
|
|
$path = $value;
|
|
}
|
|
break;
|
|
case 'expires':
|
|
if(ereg("^((Mon|Monday|Tue|Tuesday|Wed|Wednesday|Thu|Thursday|Fri|Friday|Sat|Saturday|Sun|Sunday), )?([0-9]{2})\\-(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\\-([0-9]{2,4}) ([0-9]{2})\\:([0-9]{2})\\:([0-9]{2}) GMT$",$value,$matches))
|
|
{
|
|
$year = (int)$matches[5];
|
|
if($year<1900)
|
|
{
|
|
$year += ($year<70 ? 2000 : 1900);
|
|
}
|
|
$expires = "$year-".$this->months[$matches[4]].'-'.$matches[3].' '.$matches[6].':'.$matches[7].':'.$matches[8];
|
|
}
|
|
break;
|
|
case 'secure':
|
|
$secure = 1;
|
|
break;
|
|
}
|
|
}
|
|
$this->cookies[$secure][$domain][$path][$cookie_name] = array(
|
|
'name' => $cookie_name,
|
|
'value' => $cookie_value,
|
|
'domain' => $domain,
|
|
'path' => $path,
|
|
'expires' => $expires,
|
|
'secure' => $secure
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
function ReadReplyBody(&$body,$length)
|
|
{
|
|
switch($this->state)
|
|
{
|
|
case 'Disconnected':
|
|
return('1 connection was not yet established');
|
|
case 'Connected':
|
|
return('2 request was not sent');
|
|
case 'RequestSent':
|
|
if(($error = $this->ReadReplyHeaders(&$headers)) != '')
|
|
{
|
|
return($error);
|
|
}
|
|
break;
|
|
case 'GotReplyHeaders':
|
|
break;
|
|
default:
|
|
return('3 can not get request headers in the current connection state');
|
|
}
|
|
$body = '';
|
|
if($this->content_length_set)
|
|
{
|
|
$length = min($this->content_length-$this->read_length,$length);
|
|
}
|
|
if($length>0 && !$this->EndOfInput() && ($body = $this->ReadBytes($length)) == '')
|
|
{
|
|
return('4 could not get the request reply body');
|
|
}
|
|
return('');
|
|
}
|
|
|
|
function GetPersistentCookies(&$cookies)
|
|
{
|
|
$now = gmdate('Y-m-d H-i-s');
|
|
$cookies = array();
|
|
for($secure_cookies = 0,Reset($this->cookies);$secure_cookies<count($this->cookies);Next($this->cookies),$secure_cookies++)
|
|
{
|
|
$secure = Key($this->cookies);
|
|
for($domain = 0,Reset($this->cookies[$secure]);$domain<count($this->cookies[$secure]);Next($this->cookies[$secure]),$domain++)
|
|
{
|
|
$domain_pattern = Key($this->cookies[$secure]);
|
|
for(Reset($this->cookies[$secure][$domain_pattern]),$path_part=0;$path_part<count($this->cookies[$secure][$domain_pattern]);Next($this->cookies[$secure][$domain_pattern]),$path_part++)
|
|
{
|
|
$path=Key($this->cookies[$secure][$domain_pattern]);
|
|
for(Reset($this->cookies[$secure][$domain_pattern][$path]),$cookie=0;$cookie<count($this->cookies[$secure][$domain_pattern][$path]);Next($this->cookies[$secure][$domain_pattern][$path]),$cookie++)
|
|
{
|
|
$cookie_name = Key($this->cookies[$secure][$domain_pattern][$path]);
|
|
$expires = $this->cookies[$secure][$domain_pattern][$path][$cookie_name]['expires'];
|
|
if($expires != '' && strcmp($now,$expires)<0)
|
|
{
|
|
$cookies[$secure][$domain_pattern][$path][$cookie_name] = $this->cookies[$secure][$domain_pattern][$path][$cookie_name];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|