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XHR file added - handles terminal work & return info

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This commit is contained in:
Matt Pass
2016-10-22 17:30:22 +01:00
parent 132d78b128
commit caf80ea971
1 changed files with 93 additions and 0 deletions
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lib/terminal-xhr.php Normal file
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<?php
include(dirname(__FILE__)."/headers.php");
include(dirname(__FILE__)."/settings.php");
$aliases = array(
'la' => 'ls -la',
'll' => 'ls -lvhF',
);
// Get current working dir
$cwd = getcwd();
// If we have a command
if(!empty($_REQUEST['command'])) {
// Strip any slashes from it
if(get_magic_quotes_gpc()) {
$_REQUEST['command'] = stripslashes($_REQUEST['command']);
}
// Begin output with prompt and user command
$output = "<span style=\"color: #fff\">".$cwd."\n$&gt; ".$_REQUEST['command']."</span>\n\n";
}
// If command contains cd but no dir
if (preg_match('/^[[:blank:]]*cd[[:blank:]]*$/', @$_REQUEST['command'])) {
$_SESSION['cwd'] = getcwd(); //dirname(__FILE__);
// Else cd to a dir
} elseif (preg_match('/^[[:blank:]]*cd[[:blank:]]+([^;]+)$/', @$_REQUEST['command'], $regs)) {
// The current command is 'cd', which we have to handle as an internal shell command
// Absolute/relative path ?
($regs[1][0] == '/') ? $newDir = $regs[1] : $newDir = $_SESSION['cwd'].'/'.$regs[1];
// Tidy up appearance on /./
while (strpos($newDir, '/./') !== false) {
$newDir = str_replace('/./', '/', $newDir);
}
// Tidy up appearance on //
while (strpos($newDir, '//') !== false) {
$newDir = str_replace('//', '/', $newDir);
}
// Tidy up appearance on other variations
while (preg_match('|/\.\.(?!\.)|', $newDir)) {
$newDir = preg_replace('|/?[^/]+/\.\.(?!\.)|', '', $newDir);
}
// Empty dir
if(empty($newDir)) {
$newDir = "/";
}
// Test if we could change to that dir, else display error
(@chdir($newDir)) ? $_SESSION['cwd'] = $newDir : $output .= "\n\nCould not change to: $newDir\n\n";
} else {
// The command is not a 'cd' command, so we execute it after
// changing the directory and save the output.
chdir($_SESSION['cwd']);
// Alias expansion
$length = strcspn(@$_REQUEST['command'], " \t");
$token = substr(@$_REQUEST['command'], 0, $length);
if (isset($aliases[$token])) {
$_REQUEST['command'] = $aliases[$token].substr($_REQUEST['command'], $length);
}
// Open a proc with array and $io return
$p = proc_open(
@$_REQUEST['command'],
array(
1 => array('pipe', 'w'),
2 => array('pipe', 'w')
),
$io
);
// Read output sent to stdout
while (!feof($io[1])) {
$output .= htmlspecialchars(fgets($io[1]),ENT_COMPAT, 'UTF-8');
}
// Read output sent to stderr
while (!feof($io[2])) {
$output .= htmlspecialchars(fgets($io[2]),ENT_COMPAT, 'UTF-8');
}
$output .= "\n";
// Close everything off
fclose($io[1]);
fclose($io[2]);
proc_close($p);
}
// Finally, output our string
echo $output;
?>