installapp.php

<?php

$output_filename = "apps_add.html";

if (isset($_POST['install'])) {
    $app_name = htmlspecialchars($_POST['app_name']);
    $install_domain = '';
    $freedns_code = '';

    // Note that this value can be changed by install_web_admin
    $onion_only=false;

    $continue_install=true;

    if(! $onion_only) {
        $install_domain = $_POST['install_domain'];
        if (!strpos($install_domain, '.')) {
            // No domain was provided
            $continue_install=false;
        }
        $freedns_code = $_POST['freedns_code'];
    }

    if($continue_install) {
        if(file_exists("pending_removes.txt")) {
            // Is this app in the pending_removes list?
            if(exec('grep '.escapeshellarg("remove_".$app_name).' ./pending_removes.txt')) {
                if(! exec('grep '.escapeshellarg("remove_".$app_name).'_running ./pending_removes.txt')) {
                    // Not Removing yet so remove from schedule
                    exec('sed -i "/'.escapeshellarg("remove_".$app_name).'/d ./pending_removes.txt');
                }
                else {
                    // Removing so don't continue
                    $continue_install=false;
                }
            }
        }
    }

    if($continue_install) {
        if(! file_exists("pending_installs.txt")) {
            $pending_installs = fopen("pending_installs.txt", "w") or die("Unable to create installs file");
            fclose($pending_installs);
        }

        if(! exec('grep '.escapeshellarg("install_".$app_name).' ./pending_installs.txt')) {
            $pending_installs = fopen("pending_installs.txt", "a") or die("Unable to append to installs file");
            fwrite($pending_installs, "install_".$app_name.",".$install_domain.",".$freedns_code."\n");
            fclose($pending_installs);
            $output_filename = "app_installing.html";
        }
        else {
            // The app is already scheduled for installation
            $output_filename = "app_scheduled.html";
        }
    }
}

$htmlfile = fopen("$output_filename", "r") or die("Unable to open $output_filename");
echo fread($htmlfile,filesize("$output_filename"));
fclose($htmlfile);

?>