作为起点,您可能会发现以下程序很有帮助。它旨在运行 Python 程序:
<?php
// Check that test is not FALSE; otherwise, show user an error.
function assert_($test)
{
if ($test === FALSE)
{
echo '<html><head><title>Proxy</title></head><body><h1>Fatal Error</h1></body></html>';
exit(1);
}
}
// Patch this version of PHP with curl_setopt_array as needed.
if (!function_exists('curl_setopt_array')) {
function curl_setopt_array($ch, $curl_options)
{
foreach ($curl_options as $option => $value) {
if (!curl_setopt($ch, $option, $value)) {
return FALSE;
}
}
return TRUE;
}
}
// Fetch the URL by logging into proxy with credentials.
function fetch($url, $proxy, $port, $user, $pwd)
{
$ch = curl_init($url);
assert_($ch);
$options = array(
CURLOPT_PROXY => $proxy . ':' . $port,
CURLOPT_PROXYAUTH => CURLAUTH_NTLM,
CURLOPT_PROXYUSERPWD => $user . ':' . $pwd,
CURLOPT_RETURNTRANSFER => TRUE
);
assert_(curl_setopt_array($ch, $options));
$transfer = curl_exec($ch);
curl_close($ch);
assert_($transfer);
return $transfer;
}
// Run path with stdin and return program's status code.
function order($path, $stdin, &$stdout, &$stderr)
{
$cmd = './' . basename($path);
$descriptorspec = array(
array('pipe', 'r'),
array('pipe', 'w'),
array('pipe', 'w')
);
$cwd = dirname($path);
$process = proc_open($cmd, $descriptorspec, $pipes, $cwd, $_REQUEST);
assert_($process);
for ($total = 0; $total < strlen($stdin); $total += $written)
{
$written = fwrite($pipes[0], substr($stdin, $total));
assert_($written);
}
assert_(fclose($pipes[0]));
$stdout = stream_get_contents($pipes[1]);
assert_($stdout);
assert_(fclose($pipes[1]));
$stderr = stream_get_contents($pipes[2]);
assert_($stderr);
assert_(fclose($pipes[2]));
return proc_close($process);
}
// Collect information to run over the proxy.
@ $user = $_REQUEST['user'];
@ $pwd = $_REQUEST['pwd'];
// Fetch the URL and process it with the backend.
$transfer = fetch('http://rssblog.whatisrss.com/feed/', 'labproxy.pcci.edu', 8080, $user, $pwd);
$status = order('/home/Chappell_Stephen/public_html/backend.py', $transfer, $stdout, $stderr);
// Check for errors and display the final output.
assert_(strlen($stderr) == 0);
echo $stdout;
?>