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<?php
/*
#
# Part of OpenME interface to connect PHP (web requests) to CK
#
# See CK LICENSE.txt for licensing details
# See CK COPYRIGHT.txt for copyright details
#
# Developer: Grigori Fursin, 2014-2015
#
*/
function openme_web_to_array($web, $prefix, $remove=true)
{
if ($prefix=="")
$r=$web;
else
$r=array();
foreach ($web as $key => $value)
if ($prefix==substr($key, 0, strlen($prefix)))
{
if ($remove) $key=substr($key,strlen($prefix));
$r[$key]=$value;
}
return $r;
}
function openme_web_file_to_array($web)
{
$r=array();
foreach ($web as $key => $value)
{
if (array_key_exists('tmp_name', $value))
{
$r[$key.'_uploaded']=$value['tmp_name'];
}
}
return $r;
}
function openme_web_err($cfg, $tp, $err, $str)
{
if ($tp=='json')
{
$a=array('return' => strval($err), 'error' => $str);
$s=json_encode($a);
}
else if ($tp=='con')
{
$s=$str;
}
else
{
$tp='html';
$s='<html><body><pre>'.$str.'</pre></html></body>';
}
return openme_web_out($cfg, $tp, $s, '');
}
function openme_web_out($cfg, $tp, $str, $filename)
{
if ($tp=='' || $tp=='web')
$tp='html';
$tpx1=$cfg['content_types'];
if (!array_key_exists($tp, $tpx1))
$tp='unknown';
$tpx=$cfg['content_types'][$tp];
foreach ($tpx as $key => $value)
{
$x=$key.': '.$value;
$y=str_replace('$#filename#$',$filename, $x);
header($y);
}
print $str;
return;
}
function openme_ck_access($i, $output=true)
{
# Convert to json and call CK
# FGG: in the future we may want to connect through socket
# Get action
if (!array_key_exists('action', $i))
return array("return"=>1,"error"=>"action is not defined");
$action=$i["action"];
unset($i["cm_action"]);
# Check that no special characters, otherwise can run any command from CMD
if (preg_match('/[^A-Za-z_\-0-9]/i', $action))
return array("return"=>1,"error"=>"action contains illegal characters");
# Decode dict to json and save to temp file
$str=json_encode($i);
$ftmp=tempnam("", "ck-");
$f=fopen($ftmp, "w");
fwrite($f, $str);
fclose($f);
# Prepare call to CK
$ckr=getenv("CK_ROOT");
if ($ckr=="") $ckr=getcwd();
$ck=$ckr . '/bin/ck';
if (!file_exists($ck)) $ck='ck';
$cmd=$ck." ".$action." @".$ftmp;
#Add cmd if Windows (FGG:TODO maybe can be done cleaner?)
if (substr(strtoupper(PHP_OS),0,3)=="WIN")
$cmd="cmd /c ".$cmd;
#FGG: important note for Windows: stderr pipe should be "a" not "w"
# see http://www.php.net/manual/en/function.proc-open.php Luceo 28-Mar-2010 07:39
$tmpfname = tempnam("", "ck-err-");
$descriptorspec = array(0 => array("pipe", "r"), 1 => array("pipe", "w"), 2 => array("file", $tmpfname, "w"));
$process = proc_open($cmd, $descriptorspec, $pipes, NULL, NULL);
$tout='';
$terr='';
$rv=0;
if (is_resource($process))
{
fclose($pipes[0]);
$tout=stream_get_contents($pipes[1]);
fclose($pipes[1]);
$rv = proc_close($process);
}
# Read and delete temporal file with error output
$terr=file_get_contents($tmpfname);
unlink($tmpfname);
if ($output)
{
echo $tout;
echo $terr;
}
# Delete temporal input file
if (file_exists($ftmp))
unlink($ftmp);
$r=array("return"=>$rv, "stdout"=>$tout, "stderr"=>$terr, "std"=>$tout.$terr);
if ($rv>0)
$r["error"]=$tout.$terr;
return $r;
}
function urlsafe_b64decode($s)
{
# return str_replace(array('-','_','.'), array('+','/','='), $s);
return base64_decode(str_replace(array('-','_'), array('+','/'), $s));
}
?>
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