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remote_call.php
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remote_call.php
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<?php session_start();
/**********************************
Web interface for calling a remote CLI application via SSH
**********************************/
// Including case-specific configuration
include 'config.php';
// Local session ID
function getLocalSession()
{
return session_id()."_".date('Y_m_d_H_i_s');
}
// Copies the files from $workingdir to RemoteHost, runs the supplied
function withInputOnRemoteHost($workingdir, $remotedir, $commands) {
global $sshOpts, $resultFile, $remoteHost, $wwwdir, $resultFiles, $eraseRemoteDir;
exec("ssh $sshOpts $remoteHost 'rm $remotedir/*'");
exec("ssh $sshOpts $remoteHost 'mkdir -p $remotedir'");
// echo("ssh $sshOpts $remoteHost 'mkdir -p $remotedir'");
exec("ssh $sshOpts $remoteHost 'echo $remotedir >> test_res.txt'");
exec("scp $sshOpts $workingdir/* $remoteHost:$remotedir");
foreach($commands as $command){
// echo("ssh $sshOpts $remoteHost " . $command);
exec("ssh $sshOpts $remoteHost " . $command);
}
exec("scp $sshOpts $remoteHost:$remotedir/$resultFile $workingdir/");
foreach(array_keys($resultFiles) as $file_id){
exec("mkdir -p $wwwdir");
exec("scp $sshOpts $remoteHost:$remotedir/".$resultFiles[$file_id]["remote"]." $wwwdir/");
}
if($eraseRemoteDir) {
exec("ssh $sshOpts $remoteHost 'rm -r $remotedir'");
}
}
function prettyError($msg) {
echo("<table><tr><td style='width: 10px'><img src='error.png' /></td> <td >$msg</td></tr></table><br />");
}
// If the output contains a remote error, outputs the error and returns
// 1. Otherwise returns 0.
function handleremoteError($output) {
if(preg_match("/ERROR:/", $output)) {
// remote has complained, let's just get the error message and
// show it.
$parts = preg_split("/ERROR:/", $output);
prettyError($parts[1]);
return 1;
}
return 0;
}
?>
<html>
<head>
<?php if(isset($page_title)){ ?>
<title><?php echo($page_title); ?></title>
<?php }
if(isset($head)){
echo($head);
}
?>
<!-- <link rel='stylesheet' id='graphene-stylesheet-css' href='http://combio.abo.fi/wp-content/themes/graphene/style.css?ver=3.9' type='text/css' media='screen' /> -->
</head>
<style>
<?php
if(isset($style)){
echo($style);
}
?>
</style>
<script>
function getPageHeight() {
var rect = document.getElementById("bottomAnchor").getBoundingClientRect();
return rect.top;
}
<?php
if(isset($script)){
echo($script);
}
?>
</script>
<body onload="parent.setFrameSize(getPageHeight());">
<?php
// HTML code before the fields
if(isset($header)){
echo($header);
}
// Some error codes.
define("SUCCESS", 0);
define("NO_INPUT_SPECIFIED", 1);
define("NO_SUCH_FIELD", 2);
define("FILE_COPY_ERROR", 3);
// If the use inputs any text into the form field called $field, puts
// that into $filename. Otherwise tries seeing if $fallbackFile got
// uploaded and moves it to $filename. If everything works out
// nicely, returns SUCCESS, otherwise it returns an error code.
function process_input($field, $filename) {
if(isset($_POST[$field])) {
$content = trim($_POST[$field]);
if($content == "") {
// The user specified nothing.
return NO_INPUT_SPECIFIED;
} else {
// The user has actually written something in the text
// field.
$handle = fopen($filename, "w");
if(!$handle)
die("FATAL: Could not create the file " . $filename . ".");
fwrite($handle, $content);
fclose($handle);
return SUCCESS;
}
} else {
return NO_SUCH_FIELD;
}
}
function process_input_file($file, $filename) {
// echo("file=$file<br>");
// echo("filename=$filename<br>");
// echo($_FILES[$file]["tmp_name"]);
if(isset($_FILES[$file]))
{
// echo($_FILES[$file]["tmp_name"]);
// echo("<br>");
if(strlen($_FILES[$file]["tmp_name"])>0){
if(copy($_FILES[$file]["tmp_name"],$filename)){
return SUCCESS;}
else{
return FILE_COPY_ERROR;}
}
else
{
return NO_SUCH_FIELD;
}
}
else
{
return NO_SUCH_FIELD;
}
}
function detect_button() {
global $buttons;
foreach(array_keys($buttons) as $name)
if(isset($_POST[$name]))
return($name);
return "";
}
function list_all_results($id){
global $app_id;
global $wwwdir;
$app_dir="/var/www/html/".$app_id;
echo("<details>\n\t<summary>PREVIOUS RUNS:</summary>\n\t<br>\n\t<ul>");
foreach (glob($id."*") as $filename){
echo("\t\t<li><a href=\"$filename/result.html\" target=\"_new\">".str_replace($id."_","",$filename)."</a></li>\n");
}
echo("\t</ul>\n</details>");
}
$button = detect_button();
if($button != "") {
// We have a result to process and then show, before showing the
// form.
// We will put all the files specific to this system in the
// directory with this session name under $tmpdir.
$workingdir = $tmpdir . "/" . getLocalSession() . "/";
exec("rm $workingdir/*");
mkdir($workingdir, 0777, true);
// Get all stuff from the user and put it into files.
foreach(array_keys($fields) as $field)
process_input($field, $workingdir . $field);
foreach(array_keys($_FILES) as $file)
process_input_file($file, $workingdir . $file);
// Execute the command associated with the button the user
// clicked.
$buttons[$button]["command"]($workingdir);
// Retrieve the result.
$resSize = filesize($workingdir . $resultFile);
if($resSize > $maxResultSize) {
prettyError($tooBigResError);
} else {
$handle = fopen($workingdir . $resultFile, "r");
$res = fread($handle, $resSize);
fclose($handle);
$buttons[$button]["prettify"]($res);
}
// Generating link to the resulting files left from the last run
foreach(array_keys($resultFiles) as $file_id)
{
echo("<br><a href=\"".$resurl."/".$resultFiles[$file_id]["remote"]."\" target=\"_new\">".$resultFiles[$file_id]["link_text"]."</a>");
}
echo("<hr>");
list_all_results(session_id());
echo("<hr>");
// Now clean up everything.
foreach(array_keys($fields) as $field)
unlink($workingdir . $field);
unlink($workingdir . $resultFile);
rmdir($workingdir);
}
?>
<p />
<?php if(isset($form_class)){ ?>
<form method="post" action="remote_call.php" class=<?php echo("\"$form_class\""); ?> enctype="multipart/form-data">
<?php
}else{
?>
<form method="post" action="remote_call.php" enctype="multipart/form-data">
<?php
}
?>
<?php
foreach($fields as $field => $info) {
if(isset($form_row_class)){
?><div class=<?php echo("\"$form_row_class\""); ?>><?php
}
switch($info["type"]) {
case "inline":echo($info["desc"]);break;
case "textarea":
?>
<label><span>
<?php echo($info["desc"]); ?></span>
<textarea name=<?php echo("\"$field\"") ?> >
<?php if(isset($_POST[$field])) echo($_POST[$field]); ?>
</textarea></label><br />
<?php break;
case "email":?>
<label><span>
<?php echo($info["desc"]); ?></span>
<input type="email" name=<?php echo("\"$field\"") ?>
<?php if(isset($_POST[$field])) echo("value=\"$_POST[$field]\""); ?> >
</input></label><br />
<?php break;
case "checkbox":?>
<?php if(isset($info["label"])){
?> <label><span><?php echo($info["label"]); ?></span></label>
<?php }
if(isset($form_checkbox_class)){
?>
<div class=<?php echo("\"$form_checkbox_class\""); ?> >
<?php }
else{
?><br /><?php
}
?>
<label>
<input type="checkbox" name=<?php echo("\"$field\""); if(isset($_POST[$field])) echo("checked") ?>
/>
<span><?php echo($info["desc"]) ?></span>
</label>
<?php
if(isset($form_checkbox_class)){
?>
</div>
<?php } ?>
<?php break; ?>
<?php case "select":?>
<label><span>
<?php echo($info["desc"]); ?></span>
<select name=<?php echo("\"$field\""); ?> >
<?php foreach($info["options"] as $option => $opt_item) {
if(is_array($opt_item)){
?><optgroup label=<?php echo("\"$option\""); ?> ><?php
foreach($opt_item as $sub_option => $opt_text){
?>
<option value=<?php echo("\"$sub_option\"");
if(isset($_POST[$field])){
if(strcmp($_POST[$field],$sub_option)==0){
echo(" selected=\"selected\"");
}
}
?> ><?php echo($opt_text); ?></option>
<?php
}?>
</optgroup>
<?php
}
else{
?>
<option value=<?php echo("\"$option\"");
if(isset($_POST[$field])){
if(strcmp($_POST[$field],$option)==0){
echo(" selected=\"selected\"");
}
}
?> ><?php echo($opt_item); ?></option>
<?php }
}
?>
</select></label>
<?php break; ?>
<?php case "file":?>
<label><span>
<?php echo($info["desc"]); ?></span>
<input type="file"
name=<?php echo("\"$field\"") ?>
id=<?php echo("\"{$info['id']}\"") ?>
/></label>
<?php break; ?>
<?php }
if(isset($form_row_class)){
?></div><?php
}
} ?>
<?php foreach($buttons as $name => $desc) { ?>
<input type ="submit"
name =<?php echo("\"$name\"") ?>
value=<?php echo("\"{$desc['value']}\"")?>
/>
<?php } ?>
</form>
<div id="bottomAnchor" style="height: 0px" />
<?php
// HTML code after the fields
if(isset($footer)){
echo($footer);
}
?>
</body>
</html>