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rcmail_install.php
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<?php
/**
+-----------------------------------------------------------------------+
| rcmail_install.php |
| |
| This file is part of the Roundcube Webmail package |
| Copyright (C) 2008-2016, The Roundcube Dev Team |
| |
| Licensed under the GNU General Public License version 3 or |
| any later version with exceptions for skins & plugins. |
| See the README file for a full license statement. |
+-----------------------------------------------------------------------+
*/
/**
* Class to control the installation process of the Roundcube Webmail package
*
* @category Install
* @package Roundcube
* @author Thomas Bruederli
*/
class rcmail_install
{
public $step;
public $last_error;
public $is_post = false;
public $failures = 0;
public $config = array();
public $configured = false;
public $legacy_config = false;
public $email_pattern = '([a-z0-9][a-z0-9\-\.\+\_]*@[a-z0-9]([a-z0-9\-][.]?)*[a-z0-9])';
public $bool_config_props = array();
public $local_config = array('db_dsnw', 'default_host', 'support_url', 'des_key', 'plugins');
public $obsolete_config = array('db_backend', 'db_max_length', 'double_auth');
public $replaced_config = array(
'skin_path' => 'skin',
'locale_string' => 'language',
'multiple_identities' => 'identities_level',
'addrbook_show_images' => 'show_images',
'imap_root' => 'imap_ns_personal',
'pagesize' => 'mail_pagesize',
'top_posting' => 'reply_mode',
'keep_alive' => 'refresh_interval',
'min_keep_alive' => 'min_refresh_interval',
);
// list of supported database drivers
public $supported_dbs = array(
'MySQL' => 'pdo_mysql',
'PostgreSQL' => 'pdo_pgsql',
'SQLite' => 'pdo_sqlite',
'SQLite (v2)' => 'pdo_sqlite2',
'SQL Server (SQLSRV)' => 'pdo_sqlsrv',
'SQL Server (DBLIB)' => 'pdo_dblib',
'Oracle' => 'oci8',
);
/**
* Constructor
*/
public function __construct()
{
$this->step = intval($_REQUEST['_step']);
$this->is_post = $_SERVER['REQUEST_METHOD'] == 'POST';
}
/**
* Singleton getter
*/
public static function get_instance()
{
static $inst;
if (!$inst) {
$inst = new rcmail_install();
}
return $inst;
}
/**
* Read the local config files and store properties
*/
public function load_config()
{
// defaults
if ($config = $this->load_config_file(RCUBE_CONFIG_DIR . 'defaults.inc.php')) {
$this->config = (array) $config;
$this->defaults = $this->config;
}
$config = null;
// config
if ($config = $this->load_config_file(RCUBE_CONFIG_DIR . 'config.inc.php')) {
$this->config = array_merge($this->config, $config);
}
else {
if ($config = $this->load_config_file(RCUBE_CONFIG_DIR . 'main.inc.php')) {
$this->config = array_merge($this->config, $config);
$this->legacy_config = true;
}
if ($config = $this->load_config_file(RCUBE_CONFIG_DIR . 'db.inc.php')) {
$this->config = array_merge($this->config, $config);
$this->legacy_config = true;
}
}
$this->configured = !empty($config);
}
/**
* Read the default config file and store properties
*/
public function load_config_file($file)
{
if (!is_readable($file)) {
return;
}
include $file;
// read comments from config file
if (function_exists('token_get_all')) {
$tokens = token_get_all(file_get_contents($file));
$in_config = false;
$buffer = '';
for ($i = 0; $i < count($tokens); $i++) {
$token = $tokens[$i];
if ($token[0] == T_VARIABLE && ($token[1] == '$config' || $token[1] == '$rcmail_config')) {
$in_config = true;
if ($buffer && $tokens[$i+1] == '[' && $tokens[$i+2][0] == T_CONSTANT_ENCAPSED_STRING) {
$propname = trim($tokens[$i+2][1], "'\"");
$this->comments[$propname] = $buffer;
$buffer = '';
$i += 3;
}
}
else if ($in_config && $token[0] == T_COMMENT) {
$buffer .= strtr($token[1], array('\n' => "\n"));
}
}
}
// deprecated name of config variable
if (is_array($rcmail_config)) {
return $rcmail_config;
}
return $config;
}
/**
* Getter for a certain config property
*
* @param string Property name
* @param string Default value
*
* @return string The property value
*/
public function getprop($name, $default = '')
{
$value = $this->config[$name];
if ($name == 'des_key' && !$this->configured && !isset($_REQUEST["_$name"])) {
$value = rcube_utils::random_bytes(24);
}
return $value !== null && $value !== '' ? $value : $default;
}
/**
* Create configuration file that contains parameters
* that differ from default values.
*
* @return string The complete config file content
*/
public function create_config()
{
$config = array();
foreach ($this->config as $prop => $default) {
$is_default = !isset($_POST["_$prop"]);
$value = !$is_default || $this->bool_config_props[$prop] ? $_POST["_$prop"] : $default;
// always disable installer
if ($prop == 'enable_installer') {
$value = false;
}
// reset useragent to default (keeps version up-to-date)
if ($prop == 'useragent' && stripos($value, 'Roundcube Webmail/') !== false) {
$value = $this->defaults[$prop];
}
// generate new encryption key, never use the default value
if ($prop == 'des_key' && $value == $this->defaults[$prop]) {
$value = rcube_utils::random_bytes(24);
}
// convert some form data
if ($prop == 'debug_level' && !$is_default) {
if (is_array($value)) {
$val = 0;
foreach ($value as $dbgval) {
$val += intval($dbgval);
}
$value = $val;
}
}
else if ($prop == 'db_dsnw' && !empty($_POST['_dbtype'])) {
if ($_POST['_dbtype'] == 'sqlite') {
$value = sprintf('%s://%s?mode=0646', $_POST['_dbtype'],
$_POST['_dbname']{0} == '/' ? '/' . $_POST['_dbname'] : $_POST['_dbname']);
}
else if ($_POST['_dbtype']) {
$value = sprintf('%s://%s:%s@%s/%s', $_POST['_dbtype'],
rawurlencode($_POST['_dbuser']), rawurlencode($_POST['_dbpass']), $_POST['_dbhost'], $_POST['_dbname']);
}
}
else if ($prop == 'smtp_auth_type' && $value == '0') {
$value = '';
}
else if ($prop == 'default_host' && is_array($value)) {
$value = self::_clean_array($value);
if (count($value) <= 1) {
$value = $value[0];
}
}
else if ($prop == 'mail_pagesize' || $prop == 'addressbook_pagesize') {
$value = max(2, intval($value));
}
else if ($prop == 'smtp_user' && !empty($_POST['_smtp_user_u'])) {
$value = '%u';
}
else if ($prop == 'smtp_pass' && !empty($_POST['_smtp_user_u'])) {
$value = '%p';
}
else if (is_bool($default)) {
$value = (bool) $value;
}
else if (is_numeric($value)) {
$value = intval($value);
}
else if ($prop == 'plugins' && !empty($_POST['submit'])) {
$value = array();
foreach (array_keys($_POST) as $key) {
if (preg_match('/^_plugins_*/', $key)) {
array_push($value, $_POST[$key]);
}
}
}
// skip this property
if ($value == $this->defaults[$prop]
&& (!in_array($prop, $this->local_config)
|| in_array($prop, array_merge($this->obsolete_config, array_keys($this->replaced_config)))
|| preg_match('/^db_(table|sequence)_/', $prop)
)
) {
continue;
}
// save change
$this->config[$prop] = $value;
$config[$prop] = $value;
}
$out = "<?php\n\n";
$out .= "/* Local configuration for Roundcube Webmail */\n\n";
foreach ($config as $prop => $value) {
// copy option descriptions from existing config or defaults.inc.php
$out .= $this->comments[$prop];
$out .= "\$config['$prop'] = " . self::_dump_var($value, $prop) . ";\n\n";
}
return $out;
}
/**
* save generated config file in RCUBE_CONFIG_DIR
*
* @return boolean True if the file was saved successfully, false if not
*/
public function save_configfile($config)
{
if (is_writable(RCUBE_CONFIG_DIR)) {
return file_put_contents(RCUBE_CONFIG_DIR . 'config.inc.php', $config);
}
return false;
}
/**
* Check the current configuration for missing properties
* and deprecated or obsolete settings
*
* @return array List with problems detected
*/
public function check_config()
{
$this->load_config();
if (!$this->configured) {
return;
}
$out = $seen = array();
// iterate over the current configuration
foreach (array_keys($this->config) as $prop) {
if ($replacement = $this->replaced_config[$prop]) {
$out['replaced'][] = array('prop' => $prop, 'replacement' => $replacement);
$seen[$replacement] = true;
}
else if (!$seen[$prop] && in_array($prop, $this->obsolete_config)) {
$out['obsolete'][] = array('prop' => $prop);
$seen[$prop] = true;
}
}
// the old default mime_magic reference is obsolete
if ($this->config['mime_magic'] == '/usr/share/misc/magic') {
$out['obsolete'][] = array(
'prop' => 'mime_magic',
'explain' => "Set value to null in order to use system default"
);
}
// check config dependencies and contradictions
if ($this->config['enable_spellcheck'] && $this->config['spellcheck_engine'] == 'pspell') {
if (!extension_loaded('pspell')) {
$out['dependencies'][] = array(
'prop' => 'spellcheck_engine',
'explain' => "This requires the <tt>pspell</tt> extension which could not be loaded."
);
}
else if (!empty($this->config['spellcheck_languages'])) {
foreach ($this->config['spellcheck_languages'] as $lang => $descr) {
if (!@pspell_new($lang)) {
$out['dependencies'][] = array(
'prop' => 'spellcheck_languages',
'explain' => "You are missing pspell support for language $lang ($descr)"
);
}
}
}
}
if ($this->config['log_driver'] == 'syslog') {
if (!function_exists('openlog')) {
$out['dependencies'][] = array(
'prop' => 'log_driver',
'explain' => "This requires the <tt>syslog</tt> extension which could not be loaded."
);
}
if (empty($this->config['syslog_id'])) {
$out['dependencies'][] = array(
'prop' => 'syslog_id',
'explain' => "Using <tt>syslog</tt> for logging requires a syslog ID to be configured"
);
}
}
// check ldap_public sources having global_search enabled
if (is_array($this->config['ldap_public']) && !is_array($this->config['autocomplete_addressbooks'])) {
foreach ($this->config['ldap_public'] as $ldap_public) {
if ($ldap_public['global_search']) {
$out['replaced'][] = array(
'prop' => 'ldap_public::global_search',
'replacement' => 'autocomplete_addressbooks'
);
break;
}
}
}
return $out;
}
/**
* Merge the current configuration with the defaults
* and copy replaced values to the new options.
*/
public function merge_config()
{
$current = $this->config;
$this->config = array();
foreach ($this->replaced_config as $prop => $replacement) {
if (isset($current[$prop])) {
if ($prop == 'skin_path') {
$this->config[$replacement] = preg_replace('#skins/(\w+)/?$#', '\\1', $current[$prop]);
}
else if ($prop == 'multiple_identities') {
$this->config[$replacement] = $current[$prop] ? 2 : 0;
}
else {
$this->config[$replacement] = $current[$prop];
}
}
unset($current[$prop]);
}
foreach ($this->obsolete_config as $prop) {
unset($current[$prop]);
}
// add all ldap_public sources having global_search enabled to autocomplete_addressbooks
if (is_array($current['ldap_public'])) {
foreach ($current['ldap_public'] as $key => $ldap_public) {
if ($ldap_public['global_search']) {
$this->config['autocomplete_addressbooks'][] = $key;
unset($current['ldap_public'][$key]['global_search']);
}
}
}
$this->config = array_merge($this->config, $current);
foreach (array_keys((array) $current['ldap_public']) as $key) {
$this->config['ldap_public'][$key] = $current['ldap_public'][$key];
}
}
/**
* Compare the local database schema with the reference schema
* required for this version of Roundcube
*
* @param rcube_db Database object
*
* @return boolean True if the schema is up-to-date, false if not or an error occurred
*/
public function db_schema_check($DB)
{
if (!$this->configured) {
return false;
}
// read reference schema from mysql.initial.sql
$db_schema = $this->db_read_schema(INSTALL_PATH . 'SQL/mysql.initial.sql');
$errors = array();
// check list of tables
$existing_tables = $DB->list_tables();
foreach ($db_schema as $table => $cols) {
$table = $this->config['db_prefix'] . $table;
if (!in_array($table, $existing_tables)) {
$errors[] = "Missing table '".$table."'";
}
else { // compare cols
$db_cols = $DB->list_cols($table);
$diff = array_diff(array_keys($cols), $db_cols);
if (!empty($diff)) {
$errors[] = "Missing columns in table '$table': " . join(',', $diff);
}
}
}
return !empty($errors) ? $errors : false;
}
/**
* Utility function to read database schema from an .sql file
*/
private function db_read_schema($schemafile)
{
$lines = file($schemafile);
$table_block = false;
$schema = array();
$keywords = array('PRIMARY','KEY','INDEX','UNIQUE','CONSTRAINT','REFERENCES','FOREIGN');
foreach ($lines as $line) {
if (preg_match('/^\s*create table `?([a-z0-9_]+)`?/i', $line, $m)) {
$table_block = $m[1];
}
else if ($table_block && preg_match('/^\s*`?([a-z0-9_-]+)`?\s+([a-z]+)/', $line, $m)) {
$col = $m[1];
if (!in_array(strtoupper($col), $keywords)) {
$schema[$table_block][$col] = $m[2];
}
}
}
return $schema;
}
/**
* Try to detect some file's mimetypes to test the correct behavior of fileinfo
*/
public function check_mime_detection()
{
$errors = array();
$files = array(
'skins/larry/images/roundcube_logo.png' => 'image/png',
'program/resources/blank.tif' => 'image/tiff',
'program/resources/blocked.gif' => 'image/gif',
'skins/larry/README' => 'text/plain',
);
foreach ($files as $path => $expected) {
$mimetype = rcube_mime::file_content_type(INSTALL_PATH . $path, basename($path));
if ($mimetype != $expected) {
$errors[] = array($path, $mimetype, $expected);
}
}
return $errors;
}
/**
* Check the correct configuration of the 'mime_types' mapping option
*/
public function check_mime_extensions()
{
$errors = array();
$types = array(
'application/zip' => 'zip',
'text/css' => 'css',
'application/pdf' => 'pdf',
'image/gif' => 'gif',
'image/svg+xml' => 'svg',
);
foreach ($types as $mimetype => $expected) {
$ext = rcube_mime::get_mime_extensions($mimetype);
if (!in_array($expected, (array) $ext)) {
$errors[] = array($mimetype, $ext, $expected);
}
}
return $errors;
}
/**
* Getter for the last error message
*
* @return string Error message or null if none exists
*/
public function get_error()
{
return $this->last_error['message'];
}
/**
* Return a list with all imap hosts configured
*
* @return array Clean list with imap hosts
*/
public function get_hostlist()
{
$default_hosts = (array) $this->getprop('default_host');
$out = array();
foreach ($default_hosts as $key => $name) {
if (!empty($name)) {
$out[] = rcube_utils::parse_host(is_numeric($key) ? $name : $key);
}
}
return $out;
}
/**
* Create a HTML dropdown to select a previous version of Roundcube
*/
public function versions_select($attrib = array())
{
$select = new html_select($attrib);
$select->add(array(
'0.1-stable', '0.1.1',
'0.2-alpha', '0.2-beta', '0.2-stable',
'0.3-stable', '0.3.1',
'0.4-beta', '0.4.2',
'0.5-beta', '0.5', '0.5.1', '0.5.2', '0.5.3', '0.5.4',
'0.6-beta', '0.6',
'0.7-beta', '0.7', '0.7.1', '0.7.2', '0.7.3', '0.7.4',
'0.8-beta', '0.8-rc', '0.8.0', '0.8.1', '0.8.2', '0.8.3', '0.8.4', '0.8.5', '0.8.6',
'0.9-beta', '0.9-rc', '0.9-rc2',
// Note: Do not add newer versions here
));
return $select;
}
/**
* Return a list with available subfolders of the skin directory
*/
public function list_skins()
{
$skins = array();
$skindir = INSTALL_PATH . 'skins/';
foreach (glob($skindir . '*') as $path) {
if (is_dir($path) && is_readable($path)) {
$skins[] = substr($path, strlen($skindir));
}
}
return $skins;
}
/**
* Return a list with available subfolders of the plugins directory
* (with their associated description in composer.json)
*/
public function list_plugins()
{
$plugins = array();
$plugin_dir = INSTALL_PATH . 'plugins/';
foreach (glob($plugin_dir . '*') as $path) {
if (!is_dir($path)) {
continue;
}
if (is_readable($path . '/composer.json')) {
$file_json = json_decode(file_get_contents($path . '/composer.json'));
$plugin_desc = $file_json->description ?: 'N/A';
}
else {
$plugin_desc = 'N/A';
}
$name = substr($path, strlen($plugin_dir));
$plugins[] = array(
'name' => $name,
'desc' => $plugin_desc,
'enabled' => in_array($name, (array) $this->config['plugins'])
);
}
return $plugins;
}
/**
* Display OK status
*
* @param string Test name
* @param string Confirm message
*/
public function pass($name, $message = '')
{
echo rcube::Q($name) . ':&nbsp; <span class="success">OK</span>';
$this->_showhint($message);
}
/**
* Display an error status and increase failure count
*
* @param string Test name
* @param string Error message
* @param string URL for details
* @param bool Do not count this failure
*/
public function fail($name, $message = '', $url = '', $optional=false)
{
if (!$optional) {
$this->failures++;
}
echo rcube::Q($name) . ':&nbsp; <span class="fail">NOT OK</span>';
$this->_showhint($message, $url);
}
/**
* Display an error status for optional settings/features
*
* @param string Test name
* @param string Error message
* @param string URL for details
*/
public function optfail($name, $message = '', $url = '')
{
echo rcube::Q($name) . ':&nbsp; <span class="na">NOT OK</span>';
$this->_showhint($message, $url);
}
/**
* Display warning status
*
* @param string Test name
* @param string Warning message
* @param string URL for details
*/
public function na($name, $message = '', $url = '')
{
echo rcube::Q($name) . ':&nbsp; <span class="na">NOT AVAILABLE</span>';
$this->_showhint($message, $url);
}
private function _showhint($message, $url = '')
{
$hint = rcube::Q($message);
if ($url) {
$hint .= ($hint ? '; ' : '') . 'See <a href="' . rcube::Q($url) . '" target="_blank">' . rcube::Q($url) . '</a>';
}
if ($hint) {
echo '<span class="indent">(' . $hint . ')</span>';
}
}
private static function _clean_array($arr)
{
$out = array();
foreach (array_unique($arr) as $k => $val) {
if (!empty($val)) {
if (is_numeric($k)) {
$out[] = $val;
}
else {
$out[$k] = $val;
}
}
}
return $out;
}
private static function _dump_var($var, $name=null)
{
// special values
switch ($name) {
case 'syslog_facility':
$list = array(32 => 'LOG_AUTH', 80 => 'LOG_AUTHPRIV', 72 => ' LOG_CRON',
24 => 'LOG_DAEMON', 0 => 'LOG_KERN', 128 => 'LOG_LOCAL0',
136 => 'LOG_LOCAL1', 144 => 'LOG_LOCAL2', 152 => 'LOG_LOCAL3',
160 => 'LOG_LOCAL4', 168 => 'LOG_LOCAL5', 176 => 'LOG_LOCAL6',
184 => 'LOG_LOCAL7', 48 => 'LOG_LPR', 16 => 'LOG_MAIL',
56 => 'LOG_NEWS', 40 => 'LOG_SYSLOG', 8 => 'LOG_USER', 64 => 'LOG_UUCP'
);
if ($val = $list[$var]) {
return $val;
}
break;
case 'mail_header_delimiter':
$var = str_replace(array("\r", "\n"), array('\r', '\n'), $var);
return '"' . $var. '"';
/*
// RCMAIL_VERSION is undefined here
case 'useragent':
if (preg_match('|^(.*)/('.preg_quote(RCMAIL_VERSION, '|').')$|i', $var, $m)) {
return '"' . addcslashes($var, '"') . '/" . RCMAIL_VERSION';
}
break;
*/
}
if (is_array($var)) {
if (empty($var)) {
return 'array()';
}
else { // check if all keys are numeric
$isnum = true;
foreach (array_keys($var) as $key) {
if (!is_numeric($key)) {
$isnum = false;
break;
}
}
if ($isnum) {
return 'array(' . join(', ', array_map(array('rcmail_install', '_dump_var'), $var)) . ')';
}
}
}
return var_export($var, true);
}
/**
* Initialize the database with the according schema
*
* @param object rcube_db Database connection
* @return boolen True on success, False on error
*/
public function init_db($DB)
{
$engine = $DB->db_provider;
// read schema file from /SQL/*
$fname = INSTALL_PATH . "SQL/$engine.initial.sql";
if ($sql = @file_get_contents($fname)) {
$DB->set_option('table_prefix', $this->config['db_prefix']);
$DB->exec_script($sql);
}
else {
$this->fail('DB Schema', "Cannot read the schema file: $fname");
return false;
}
if ($err = $this->get_error()) {
$this->fail('DB Schema', "Error creating database schema: $err");
return false;
}
return true;
}
/**
* Update database schema
*
* @param string Version to update from
*
* @return boolen True on success, False on error
*/
public function update_db($version)
{
return rcmail_utils::db_update(INSTALL_PATH . 'SQL',
'roundcube', $version, array('quiet' => true));
}
/**
* Handler for Roundcube errors
*/
public function raise_error($p)
{
$this->last_error = $p;
}
}

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