<?php
namespace Zotlabs\Module;
/**
* @file mod/setup.php
*
* Controller for the initial setup/installation.
*
* @todo This setup module could need some love and improvements.
*/
/**
* @brief Initialisation for the setup module.
*
*/
class Setup extends \Zotlabs\Web\Controller {
private static $install_wizard_pass = 1;
function init() {
// Ensure that if somebody hasn't read the install documentation and doesn't have all
// the required modules or has a totally borked shared hosting provider and they can't
// figure out what the hell is going on - that we at least spit out an error message which
// we can inquire about when they write to tell us that our software doesn't work.
// The worst thing we can do at this point is throw a white screen of death and rely on
// them knowing about servers and php modules and logfiles enough so that we can guess
// at the source of the problem. As ugly as it may be, we need to throw a technically worded
// PHP error message in their face. Once installation is complete application errors will
// throw a white screen because these error messages divulge information which can
// potentially be useful to hackers.
error_reporting(E_ERROR | E_WARNING | E_PARSE );
ini_set('log_errors', '0');
ini_set('display_errors', '1');
// $baseurl/setup/testrwrite to test if rewite in .htaccess is working
if (argc() == 2 && argv(1) == "testrewrite") {
echo 'ok';
killme();
}
if (x($_POST, 'pass'))
$this->install_wizard_pass = intval($_POST['pass']);
else
$this->install_wizard_pass = 1;
}
/**
* @brief Handle the actions of the different setup steps.
*
*/
function post() {
switch($this->install_wizard_pass) {
case 1:
case 2:
return;
// implied break;
case 3:
$urlpath = \App::get_path();
$dbhost = trim($_POST['dbhost']);
$dbport = intval(trim($_POST['dbport']));
$dbuser = trim($_POST['dbuser']);
$dbpass = trim($_POST['dbpass']);
$dbdata = trim($_POST['dbdata']);
$dbtype = intval(trim($_POST['dbtype']));
$phpath = trim($_POST['phpath']);
$adminmail = trim($_POST['adminmail']);
$siteurl = trim($_POST['siteurl']);
$advanced = ((intval($_POST['advanced'])) ? 1 : 0);
// $siteurl should not have a trailing slash
$siteurl = rtrim($siteurl,'/');
require_once('include/dba/dba_driver.php');
$db = \DBA::dba_factory($dbhost, $dbport, $dbuser, $dbpass, $dbdata, $dbtype, true);
if(! \DBA::$dba->connected) {
echo 'Database Connect failed: ' . DBA::$dba->error;
killme();
}
return;
// implied break;
case 4:
$urlpath = \App::get_path();
$dbhost = notags(trim($_POST['dbhost']));
$dbport = intval(notags(trim($_POST['dbport'])));
$dbuser = notags(trim($_POST['dbuser']));
$dbpass = notags(trim($_POST['dbpass']));
$dbdata = notags(trim($_POST['dbdata']));
$dbtype = intval(notags(trim($_POST['dbtype'])));
$phpath = notags(trim($_POST['phpath']));
$timezone = notags(trim($_POST['timezone']));
$adminmail = notags(trim($_POST['adminmail']));
$siteurl = notags(trim($_POST['siteurl']));
$advanced = ((intval($_POST['advanced'])) ? 1 : 0);
if($siteurl != z_root()) {
$test = z_fetch_url($siteurl."/setup/testrewrite");
if((! $test['success']) || ($test['body'] != 'ok')) {
\App::$data['url_fail'] = true;
\App::$data['url_error'] = $test['error'];
return;
}
}
if(! \DBA::$dba->connected) {
// connect to db
$db = \DBA::dba_factory($dbhost, $dbport, $dbuser, $dbpass, $dbdata, $dbtype, true);
}
if(! \DBA::$dba->connected) {
echo 'CRITICAL: DB not connected.';
killme();
}
$tpl = get_intltext_template('htconfig.tpl');
$txt = replace_macros($tpl,array(
'$dbhost' => $dbhost,
'$dbport' => $dbport,
'$dbuser' => $dbuser,
'$dbpass' => $dbpass,
'$dbdata' => $dbdata,
'$dbtype' => $dbtype,
'$uno' => 1 - $advanced,
'$timezone' => $timezone,
'$siteurl' => $siteurl,
'$site_id' => random_string(),
'$phpath' => $phpath,
'$adminmail' => $adminmail
));
$result = file_put_contents('.htconfig.php', $txt);
if(! $result) {
\App::$data['txt'] = $txt;
}
$errors = $this->load_database($db);
if($errors)
\App::$data['db_failed'] = $errors;
else
\App::$data['db_installed'] = true;
return;
// implied break;
default:
break;
}
}
function get_db_errno() {
if(class_exists('mysqli'))
return mysqli_connect_errno();
else
return mysql_errno();
}
/**
* @brief Get output for the setup page.
*
* Depending on the state we are currently in it returns different content.
*
* @return string parsed HTML output
*/
function get() {
$o = '';
$wizard_status = '';
$install_title = t('$Projectname Server - Setup');
if(x(\App::$data, 'db_conn_failed')) {
$this->install_wizard_pass = 2;
$wizard_status = t('Could not connect to database.');
}
if(x(\App::$data, 'url_fail')) {
$this->install_wizard_pass = 3;
$wizard_status = t('Could not connect to specified site URL. Possible SSL certificate or DNS issue.');
if(\App::$data['url_error'])
$wizard_status .= ' ' . \App::$data['url_error'];
}
if(x(\App::$data, 'db_create_failed')) {
$this->install_wizard_pass = 2;
$wizard_status = t('Could not create table.');
}
$db_return_text = '';
if(x(\App::$data, 'db_installed')) {
$txt = '<p style="font-size: 130%;">';
$txt .= t('Your site database has been installed.') . EOL;
$db_return_text .= $txt;
}
if(x(\App::$data, 'db_failed')) {
$txt = t('You may need to import the file "install/schema_xxx.sql" manually using a database client.') . EOL;
$txt .= t('Please see the file "install/INSTALL.txt".') . EOL ."<hr>" ;
$txt .= "<pre>".\App::$data['db_failed'] . "</pre>". EOL ;
$db_return_text .= $txt;
}
if(\DBA::$dba && \DBA::$dba->connected) {
$r = q("SELECT COUNT(*) as `total` FROM `account`");
if($r && count($r) && $r[0]['total']) {
$tpl = get_markup_template('install.tpl');
return replace_macros($tpl, array(
'$title' => $install_title,
'$pass' => '',
'$status' => t('Permission denied.'),
'$text' => '',
));
}
}
if(x(\App::$data, 'txt') && strlen(\App::$data['txt'])) {
$db_return_text .= $this->manual_config($a);
}
if ($db_return_text != "") {
$tpl = get_markup_template('install.tpl');
return replace_macros($tpl, array(
'$title' => $install_title,
'$pass' => '',
'$text' => $db_return_text . $this->what_next(),
));
}
switch ($this->install_wizard_pass){
case 1: { // System check
$checks = array();
$this->check_funcs($checks);
$this->check_htconfig($checks);
$this->check_store($checks);
$this->check_smarty3($checks);
$this->check_keys($checks);
if (x($_POST, 'phpath'))
$phpath = notags(trim($_POST['phpath']));
$this->check_php($phpath, $checks);
$this->check_phpconfig($checks);
$this->check_htaccess($checks);
$checkspassed = array_reduce($checks, "self::check_passed", true);
$tpl = get_markup_template('install_checks.tpl');
$o .= replace_macros($tpl, array(
'$title' => $install_title,
'$pass' => t('System check'),
'$checks' => $checks,
'$passed' => $checkspassed,
'$see_install' => t('Please see the file "install/INSTALL.txt".'),
'$next' => t('Next'),
'$reload' => t('Check again'),
'$phpath' => $phpath,
'$baseurl' => z_root(),
));
return $o;
}; break;
case 2: { // Database config
$dbhost = ((x($_POST,'dbhost')) ? notags(trim($_POST['dbhost'])) : '127.0.0.1');
$dbuser = notags(trim($_POST['dbuser']));
$dbport = intval(notags(trim($_POST['dbport'])));
$dbpass = notags(trim($_POST['dbpass']));
$dbdata = notags(trim($_POST['dbdata']));
$dbtype = intval(notags(trim($_POST['dbtype'])));
$phpath = notags(trim($_POST['phpath']));
$adminmail = notags(trim($_POST['adminmail']));
$siteurl = notags(trim($_POST['siteurl']));
$tpl = get_markup_template('install_db.tpl');
$o .= replace_macros($tpl, array(
'$title' => $install_title,
'$pass' => t('Database connection'),
'$info_01' => t('In order to install $Projectname we need to know how to connect to your database.'),
'$info_02' => t('Please contact your hosting provider or site administrator if you have questions about these settings.'),
'$info_03' => t('The database you specify below should already exist. If it does not, please create it before continuing.'),
'$status' => $wizard_status,
'$dbhost' => array('dbhost', t('Database Server Name'), $dbhost, t('Default is 127.0.0.1')),
'$dbport' => array('dbport', t('Database Port'), $dbport, t('Communication port number - use 0 for default')),
'$dbuser' => array('dbuser', t('Database Login Name'), $dbuser, ''),
'$dbpass' => array('dbpass', t('Database Login Password'), $dbpass, ''),
'$dbdata' => array('dbdata', t('Database Name'), $dbdata, ''),
'$dbtype' => array('dbtype', t('Database Type'), $dbtype, '', array( 0=>'MySQL', 1=>'PostgreSQL' )),
'$adminmail' => array('adminmail', t('Site administrator email address'), $adminmail, t('Your account email address must match this in order to use the web admin panel.')),
'$siteurl' => array('siteurl', t('Website URL'), z_root(), t('Please use SSL (https) URL if available.')),
'$lbl_10' => t('Please select a default timezone for your website'),
'$baseurl' => z_root(),
'$phpath' => $phpath,
'$submit' => t('Submit'),
));
return $o;
}; break;
case 3: { // Site settings
require_once('include/datetime.php');
$dbhost = ((x($_POST,'dbhost')) ? notags(trim($_POST['dbhost'])) : '127.0.0.1');
$dbport = intval(notags(trim($_POST['dbuser'])));
$dbuser = notags(trim($_POST['dbuser']));
$dbpass = notags(trim($_POST['dbpass']));
$dbdata = notags(trim($_POST['dbdata']));
$dbtype = intval(notags(trim($_POST['dbtype'])));
$phpath = notags(trim($_POST['phpath']));
$adminmail = notags(trim($_POST['adminmail']));
$siteurl = notags(trim($_POST['siteurl']));
$timezone = ((x($_POST,'timezone')) ? ($_POST['timezone']) : 'America/Los_Angeles');
$tpl = get_markup_template('install_settings.tpl');
$o .= replace_macros($tpl, array(
'$title' => $install_title,
'$pass' => t('Site settings'),
'$status' => $wizard_status,
'$dbhost' => $dbhost,
'$dbport' => $dbport,
'$dbuser' => $dbuser,
'$dbpass' => $dbpass,
'$dbdata' => $dbdata,
'$phpath' => $phpath,
'$dbtype' => $dbtype,
'$adminmail' => array('adminmail', t('Site administrator email address'), $adminmail, t('Your account email address must match this in order to use the web admin panel.')),
'$siteurl' => array('siteurl', t('Website URL'), z_root(), t('Please use SSL (https) URL if available.')),
'$advanced' => array('advanced', t('Enable $Projectname <strong>advanced</strong> features?'), 1, t('Some advanced features, while useful - may be best suited for technically proficient audiences')),
'$timezone' => array('timezone', t('Please select a default timezone for your website'), $timezone, '', get_timezones()),
'$baseurl' => z_root(),
'$submit' => t('Submit'),
));
return $o;
}; break;
}
}
/**
* @brief Add a check result to the array for output.
*
* @param[in,out] array &$checks array passed to template
* @param string $title a title for the check
* @param boolean $status
* @param boolean $required
* @param[optional] string $help optional help string
*/
function check_add(&$checks, $title, $status, $required, $help = '') {
$checks[] = array(
'title' => $title,
'status' => $status,
'required' => $required,
'help' => $help
);
}
/**
* @brief Checks the PHP environment.
*
* @param[in,out] string &$phpath
* @param[out] array &$checks
*/
function check_php(&$phpath, &$checks) {
$help = '';
if(version_compare(PHP_VERSION, '5.4') < 0) {
$help .= t('PHP version 5.4 or greater is required.');
$this->check_add($checks, t('PHP version'), false, false, $help);
}
if (strlen($phpath)) {
$passed = file_exists($phpath);
} else {
if(is_windows())
$phpath = trim(shell_exec('where php'));
else
$phpath = trim(shell_exec('which php'));
$passed = strlen($phpath);
}
if(!$passed) {
$help .= t('Could not find a command line version of PHP in the web server PATH.'). EOL;
$help .= t('If you don\'t have a command line version of PHP installed on server, you will not be able to run background polling via cron.') . EOL;
$help .= EOL . EOL ;
$tpl = get_markup_template('field_input.tpl');
$help .= replace_macros($tpl, array(
'$field' => array('phpath', t('PHP executable path'), $phpath, t('Enter full path to php executable. You can leave this blank to continue the installation.')),
));
$phpath = '';
}
$this->check_add($checks, t('Command line PHP').($passed?" (<tt>$phpath</tt>)":""), $passed, false, $help);
if($passed) {
$str = autoname(8);
$cmd = "$phpath install/testargs.php $str";
$result = trim(shell_exec($cmd));
$passed2 = $result == $str;
$help = '';
if(!$passed2) {
$help .= t('The command line version of PHP on your system does not have "register_argc_argv" enabled.'). EOL;
$help .= t('This is required for message delivery to work.');
}
$this->check_add($checks, t('PHP register_argc_argv'), $passed, true, $help);
}
}
/**
* @brief Some PHP configuration checks.
*
* @todo Change how we display such informational text. Add more description
* how to change them.
*
* @param[out] array &$checks
*/
function check_phpconfig(&$checks) {
require_once 'include/environment.php';
$help = '';
$result = getPhpiniUploadLimits();
$help = sprintf(t('Your max allowed total upload size is set to %s. Maximum size of one file to upload is set to %s. You are allowed to upload up to %d files at once.'),
userReadableSize($result['post_max_size']),
userReadableSize($result['max_upload_filesize']),
$result['max_file_uploads']
);
$help .= '<br>' . t('You can adjust these settings in the servers php.ini.');
$this->check_add($checks, t('PHP upload limits'), true, false, $help);
}
/**
* @brief Check if the openssl implementation can generate keys.
*
* @param[out] array $checks
*/
function check_keys(&$checks) {
$help = '';
$res = false;
if (function_exists('openssl_pkey_new')) {
$res = openssl_pkey_new(array(
'digest_alg' => 'sha1',
'private_key_bits' => 4096,
'encrypt_key' => false)
);
}
// Get private key
if (! $res) {
$help .= t('Error: the "openssl_pkey_new" function on this system is not able to generate encryption keys'). EOL;
$help .= t('If running under Windows, please see "http://www.php.net/manual/en/openssl.installation.php".');
}
$this->check_add($checks, t('Generate encryption keys'), $res, true, $help);
}
/**
* @brief Check for some PHP functions and modules.
*
* @param[in,out] array &$checks
*/
function check_funcs(&$checks) {
$ck_funcs = array();
// add check metadata, the real check is done bit later and return values set
$this->check_add($ck_funcs, t('libCurl PHP module'), true, true);
$this->check_add($ck_funcs, t('GD graphics PHP module'), true, true);
$this->check_add($ck_funcs, t('OpenSSL PHP module'), true, true);
$this->check_add($ck_funcs, t('mysqli or postgres PHP module'), true, true);
$this->check_add($ck_funcs, t('mb_string PHP module'), true, true);
$this->check_add($ck_funcs, t('mcrypt PHP module'), true, true);
$this->check_add($ck_funcs, t('xml PHP module'), true, true);
if(function_exists('apache_get_modules')){
if (! in_array('mod_rewrite', apache_get_modules())) {
$this->check_add($ck_funcs, t('Apache mod_rewrite module'), false, true, t('Error: Apache webserver mod-rewrite module is required but not installed.'));
} else {
$this->check_add($ck_funcs, t('Apache mod_rewrite module'), true, true);
}
}
if((! function_exists('proc_open')) || strstr(ini_get('disable_functions'),'proc_open')) {
$this->check_add($ck_funcs, t('proc_open'), false, true, t('Error: proc_open is required but is either not installed or has been disabled in php.ini'));
}
else {
$this->check_add($ck_funcs, t('proc_open'), true, true);
}
if(! function_exists('curl_init')) {
$ck_funcs[0]['status'] = false;
$ck_funcs[0]['help'] = t('Error: libCURL PHP module required but not installed.');
}
if(! function_exists('imagecreatefromjpeg')) {
$ck_funcs[1]['status'] = false;
$ck_funcs[1]['help'] = t('Error: GD graphics PHP module with JPEG support required but not installed.');
}
if(! function_exists('openssl_public_encrypt')) {
$ck_funcs[2]['status'] = false;
$ck_funcs[2]['help'] = t('Error: openssl PHP module required but not installed.');
}
if(! function_exists('mysqli_connect') && !function_exists('pg_connect')) {
$ck_funcs[3]['status'] = false;
$ck_funcs[3]['help'] = t('Error: mysqli or postgres PHP module required but neither are installed.');
}
if(! function_exists('mb_strlen')) {
$ck_funcs[4]['status'] = false;
$ck_funcs[4]['help'] = t('Error: mb_string PHP module required but not installed.');
}
if(! function_exists('mcrypt_encrypt')) {
$ck_funcs[5]['status'] = false;
$ck_funcs[5]['help'] = t('Error: mcrypt PHP module required but not installed.');
}
if(! extension_loaded('xml')) {
$ck_funcs[6]['status'] = false;
$ck_funcs[6]['help'] = t('Error: xml PHP module required for DAV but not installed.');
}
$checks = array_merge($checks, $ck_funcs);
}
/**
* @brief Check for .htconfig requirements.
*
* @param[out] array &$checks
*/
function check_htconfig(&$checks) {
$status = true;
$help = '';
if( (file_exists('.htconfig.php') && !is_writable('.htconfig.php')) ||
(!file_exists('.htconfig.php') && !is_writable('.')) ) {
$status = false;
$help = t('The web installer needs to be able to create a file called ".htconfig.php" in the top folder of your web server and it is unable to do so.') .EOL;
$help .= t('This is most often a permission setting, as the web server may not be able to write files in your folder - even if you can.').EOL;
$help .= t('At the end of this procedure, we will give you a text to save in a file named .htconfig.php in your Red top folder.').EOL;
$help .= t('You can alternatively skip this procedure and perform a manual installation. Please see the file "install/INSTALL.txt" for instructions.').EOL;
}
$this->check_add($checks, t('.htconfig.php is writable'), $status, false, $help);
}
/**
* @brief Checks for our templating engine Smarty3 requirements.
*
* @param[out] array &$checks
*/
function check_smarty3(&$checks) {
$status = true;
$help = '';
if(! is_writable(TEMPLATE_BUILD_PATH) ) {
$status = false;
$help = t('Red uses the Smarty3 template engine to render its web views. Smarty3 compiles templates to PHP to speed up rendering.') .EOL;
$help .= sprintf( t('In order to store these compiled templates, the web server needs to have write access to the directory %s under the top level web folder.'), TEMPLATE_BUILD_PATH) . EOL;
$help .= t('Please ensure that the user that your web server runs as (e.g. www-data) has write access to this folder.').EOL;
$help .= sprintf( t('Note: as a security measure, you should give the web server write access to %s only--not the template files (.tpl) that it contains.'), TEMPLATE_BUILD_PATH) . EOL;
}
$this->check_add($checks, sprintf( t('%s is writable'), TEMPLATE_BUILD_PATH), $status, true, $help);
}
/**
* @brief Check for store directory.
*
* @param[out] array &$checks
*/
function check_store(&$checks) {
$status = true;
$help = '';
@os_mkdir(TEMPLATE_BUILD_PATH, STORAGE_DEFAULT_PERMISSIONS, true);
if(! is_writable('store')) {
$status = false;
$help = t('Red uses the store directory to save uploaded files. The web server needs to have write access to the store directory under the Red top level folder') . EOL;
$help .= t('Please ensure that the user that your web server runs as (e.g. www-data) has write access to this folder.').EOL;
}
$this->check_add($checks, t('store is writable'), $status, true, $help);
}
/**
* @brief Check URL rewrite und SSL certificate.
*
* @param[out] array &$checks
*/
function check_htaccess(&$checks) {
$a = get_app();
$status = true;
$help = '';
$ssl_error = false;
$url = z_root() . '/setup/testrewrite';
if (function_exists('curl_init')){
$test = z_fetch_url($url);
if(! $test['success']) {
if(strstr($url,'https://')) {
$test = z_fetch_url($url,false,0,array('novalidate' => true));
if($test['success']) {
$ssl_error = true;
}
}
else {
$test = z_fetch_url(str_replace('http://','https://',$url),false,0,array('novalidate' => true));
if($test['success']) {
$ssl_error = true;
}
}
if($ssl_error) {
$help = t('SSL certificate cannot be validated. Fix certificate or disable https access to this site.') . EOL;
$help .= t('If you have https access to your website or allow connections to TCP port 443 (the https: port), you MUST use a browser-valid certificate. You MUST NOT use self-signed certificates!') . EOL;
$help .= t('This restriction is incorporated because public posts from you may for example contain references to images on your own hub.') . EOL;
$help .= t('If your certificate is not recognized, members of other sites (who may themselves have valid certificates) will get a warning message on their own site complaining about security issues.') . EOL;
$help .= t('This can cause usability issues elsewhere (not just on your own site) so we must insist on this requirement.') .EOL;
$help .= t('Providers are available that issue free certificates which are browser-valid.'). EOL;
$this->check_add($checks, t('SSL certificate validation'), false, true, $help);
}
}
if ((! $test['success']) || ($test['body'] != "ok")) {
$status = false;
$help = t('Url rewrite in .htaccess is not working. Check your server configuration.'.'Test: '.var_export($test,true));
}
$this->check_add($checks, t('Url rewrite is working'), $status, true, $help);
} else {
// cannot check modrewrite if libcurl is not installed
}
}
function manual_config(&$a) {
$data = htmlspecialchars(\App::$data['txt'], ENT_COMPAT, 'UTF-8');
$o = t('The database configuration file ".htconfig.php" could not be written. Please use the enclosed text to create a configuration file in your web server root.');
$o .= "<textarea rows=\"24\" cols=\"80\" >$data</textarea>";
return $o;
}
function load_database_rem($v, $i){
$l = trim($i);
if (strlen($l)>1 && ($l[0]=="-" || ($l[0]=="/" && $l[1]=="*"))){
return $v;
} else {
return $v."\n".$i;
}
}
function load_database($db) {
$str = file_get_contents(\DBA::$dba->get_install_script());
$arr = explode(';',$str);
$errors = false;
foreach($arr as $a) {
if(strlen(trim($a))) {
$r = dbq(trim($a));
if(! $r) {
$errors .= t('Errors encountered creating database tables.') . $a . EOL;
}
}
}
return $errors;
}
function what_next() {
$a = get_app();
// install the standard theme
set_config('system', 'allowed_themes', 'redbasic');
// Set a lenient list of ciphers if using openssl. Other ssl engines
// (e.g. NSS used in RedHat) require different syntax, so hopefully
// the default curl cipher list will work for most sites. If not,
// this can set via config. Many distros are now disabling RC4,
// but many Red sites still use it and are unable to change it.
// We do not use SSL for encryption, only to protect session cookies.
// z_fetch_url() is also used to import shared links and other content
// so in theory most any cipher could show up and we should do our best
// to make the content available rather than tell folks that there's a
// weird SSL error which they can't do anything about.
$x = curl_version();
if(stristr($x['ssl_version'],'openssl'))
set_config('system','curl_ssl_ciphers','ALL:!eNULL');
// Create a system channel
require_once ('include/channel.php');
create_sys_channel();
$baseurl = z_root();
return
t('<h1>What next</h1>')
."<p>".t('IMPORTANT: You will need to [manually] setup a scheduled task for the poller.')
.t('Please see the file "install/INSTALL.txt".')
."</p><p>"
.t("Go to your new hub <a href='$baseurl/register'>registration page</a> and register as new member. Remember to use the same email you have entered as administrator email. This will allow you to enter the site admin panel.")
."</p>";
}
static private function check_passed($v, $c) {
if ($c['required'])
$v = $v && $c['status'];
return $v;
}
}
