checks; } /** * Returns the PHP path * * @return string the PHP Path * @throws \Friendica\Network\HTTPException\InternalServerErrorException */ public function getPHPPath() { // if not set, determine the PHP path if (!isset($this->phppath)) { $this->checkPHP(); $this->resetChecks(); } return $this->phppath; } /** * Resets all checks */ public function resetChecks() { $this->checks = []; } /** * Install constructor. * */ public function __construct() { $this->checks = []; } /** * Checks the current installation environment. There are optional and mandatory checks. * * @param string $baseurl The baseurl of Friendica * @param string $phpath Optional path to the PHP binary * * @return bool if the check succeed * @throws \Friendica\Network\HTTPException\InternalServerErrorException */ public function checkEnvironment($baseurl, $phpath = null) { $returnVal = true; if (isset($phpath)) { if (!$this->checkPHP($phpath)) { $returnVal = false; } } if (!$this->checkFunctions()) { $returnVal = false; } if (!$this->checkImagick()) { $returnVal = false; } if (!$this->checkLocalIni()) { $returnVal = false; } if (!$this->checkSmarty3()) { $returnVal = false; } if (!$this->checkKeys()) { $returnVal = false; } if (!$this->checkHtAccess($baseurl)) { $returnVal = false; } return $returnVal; } /** * Executes the installation of Friendica in the given environment. * - Creates `config/local.config.php` * - Installs Database Structure * * @param string $phppath Path to the PHP-Binary (optional, if not set e.g. 'php' or '/usr/bin/php') * @param string $urlpath Path based on the URL of Friendica (e.g. '/friendica') * @param string $dbhost Hostname/IP of the Friendica Database * @param string $dbuser Username of the Database connection credentials * @param string $dbpass Password of the Database connection credentials * @param string $dbdata Name of the Database * @param string $timezone Timezone of the Friendica Installaton (e.g. 'Europe/Berlin') * @param string $language 2-letter ISO 639-1 code (eg. 'en') * @param string $adminmail Mail-Adress of the administrator * @param string $basepath The basepath of Friendica * * @return bool true if the config was created, otherwise false * @throws \Friendica\Network\HTTPException\InternalServerErrorException */ public function createConfig($phppath, $urlpath, $dbhost, $dbuser, $dbpass, $dbdata, $timezone, $language, $adminmail, $basepath) { $tpl = Renderer::getMarkupTemplate('local.config.tpl'); $txt = Renderer::replaceMacros($tpl, [ '$phpath' => $phppath, '$dbhost' => $dbhost, '$dbuser' => $dbuser, '$dbpass' => $dbpass, '$dbdata' => $dbdata, '$timezone' => $timezone, '$language' => $language, '$urlpath' => $urlpath, '$adminmail' => $adminmail, ]); $result = file_put_contents($basepath . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR . 'local.config.php', $txt); if (!$result) { $this->addCheck(L10n::t('The database configuration file "config/local.config.php" could not be written. Please use the enclosed text to create a configuration file in your web server root.'), false, false, htmlentities($txt, ENT_COMPAT, 'UTF-8')); } return $result; } /*** * Installs the DB-Scheme for Friendica * * @return bool true if the installation was successful, otherwise false * @throws Exception */ public function installDatabase() { $result = DBStructure::update(false, true, true); if ($result) { $txt = L10n::t('You may need to import the file "database.sql" manually using phpmyadmin or mysql.') . EOL; $txt .= L10n::t('Please see the file "INSTALL.txt".'); $this->addCheck($txt, false, true, htmlentities($result, ENT_COMPAT, 'UTF-8')); return false; } return true; } /** * Adds new checks to the array $checks * * @param string $title The title of the current check * @param bool $status 1 = check passed, 0 = check not passed * @param bool $required 1 = check is mandatory, 0 = check is optional * @param string $help A help-string for the current check * @param string $error_msg Optional. A error message, if the current check failed */ private function addCheck($title, $status, $required, $help, $error_msg = "") { array_push($this->checks, [ 'title' => $title, 'status' => $status, 'required' => $required, 'help' => $help, 'error_msg' => $error_msg, ]); } /** * PHP Check * * Checks the PHP environment. * * - Checks if a PHP binary is available * - Checks if it is the CLI version * - Checks if "register_argc_argv" is enabled * * @param string $phppath Optional. The Path to the PHP-Binary * @param bool $required Optional. If set to true, the PHP-Binary has to exist (Default false) * * @return bool false if something required failed * @throws \Friendica\Network\HTTPException\InternalServerErrorException */ public function checkPHP($phppath = null, $required = false) { $passed3 = false; if (!isset($phppath)) { $phppath = 'php'; } $passed = file_exists($phppath); if (!$passed) { $phppath = trim(shell_exec('which ' . $phppath)); $passed = strlen($phppath); } $help = ""; if (!$passed) { $help .= L10n::t('Could not find a command line version of PHP in the web server PATH.') . EOL; $help .= L10n::t("If you don't have a command line version of PHP installed on your server, you will not be able to run the background processing. See 'Setup the worker'") . EOL; $help .= EOL . EOL; $tpl = Renderer::getMarkupTemplate('field_input.tpl'); $help .= Renderer::replaceMacros($tpl, [ '$field' => ['phpath', L10n::t('PHP executable path'), $phppath, L10n::t('Enter full path to php executable. You can leave this blank to continue the installation.')], ]); $phppath = ""; } $this->addCheck(L10n::t('Command line PHP') . ($passed ? " ($phppath)" : ""), $passed, false, $help); if ($passed) { $cmd = "$phppath -v"; $result = trim(shell_exec($cmd)); $passed2 = (strpos($result, "(cli)") !== false); list($result) = explode("\n", $result); $help = ""; if (!$passed2) { $help .= L10n::t("PHP executable is not the php cli binary \x28could be cgi-fgci version\x29") . EOL; $help .= L10n::t('Found PHP version: ') . "$result"; } $this->addCheck(L10n::t('PHP cli binary'), $passed2, true, $help); } else { // return if it was required return !$required; } if ($passed2) { $str = Strings::getRandomName(8); $cmd = "$phppath bin/testargs.php $str"; $result = trim(shell_exec($cmd)); $passed3 = $result == $str; $help = ""; if (!$passed3) { $help .= L10n::t('The command line version of PHP on your system does not have "register_argc_argv" enabled.') . EOL; $help .= L10n::t('This is required for message delivery to work.'); } else { $this->phppath = $phppath; } $this->addCheck(L10n::t('PHP register_argc_argv'), $passed3, true, $help); } // passed2 & passed3 are required if first check passed return $passed2 && $passed3; } /** * OpenSSL Check * * Checks the OpenSSL Environment * * - Checks, if the command "openssl_pkey_new" is available * * @return bool false if something required failed */ public function checkKeys() { $help = ''; $res = false; $status = true; if (function_exists('openssl_pkey_new')) { $res = openssl_pkey_new([ 'digest_alg' => 'sha1', 'private_key_bits' => 4096, 'encrypt_key' => false ]); } // Get private key if (!$res) { $help .= L10n::t('Error: the "openssl_pkey_new" function on this system is not able to generate encryption keys') . EOL; $help .= L10n::t('If running under Windows, please see "http://www.php.net/manual/en/openssl.installation.php".'); $status = false; } $this->addCheck(L10n::t('Generate encryption keys'), $res, true, $help); return $status; } /** * PHP basic function check * * @param string $name The name of the function * @param string $title The (localized) title of the function * @param string $help The (localized) help of the function * @param boolean $required If true, this check is required * * @return bool false, if the check failed */ private function checkFunction($name, $title, $help, $required) { $currHelp = ''; $status = true; if (!function_exists($name)) { $currHelp = $help; $status = false; } $this->addCheck($title, $status, $required, $currHelp); return $status || (!$status && !$required); } /** * PHP functions Check * * Checks the following PHP functions * - libCurl * - GD Graphics * - OpenSSL * - PDO or MySQLi * - mb_string * - XML * - iconv * - POSIX * * @return bool false if something required failed */ public function checkFunctions() { $returnVal = true; $help = ''; $status = true; if (function_exists('apache_get_modules')) { if (!in_array('mod_rewrite', apache_get_modules())) { $help = L10n::t('Error: Apache webserver mod-rewrite module is required but not installed.'); $status = false; $returnVal = false; } } $this->addCheck(L10n::t('Apache mod_rewrite module'), $status, true, $help); $help = ''; $status = true; if (!function_exists('mysqli_connect') && !class_exists('pdo')) { $status = false; $help = L10n::t('Error: PDO or MySQLi PHP module required but not installed.'); $returnVal = false; } else { if (!function_exists('mysqli_connect') && class_exists('pdo') && !in_array('mysql', \PDO::getAvailableDrivers())) { $status = false; $help = L10n::t('Error: The MySQL driver for PDO is not installed.'); $returnVal = false; } } $this->addCheck(L10n::t('PDO or MySQLi PHP module'), $status, true, $help); // check for XML DOM Documents being able to be generated $help = ''; $status = true; try { new DOMDocument(); } catch (Exception $e) { $help = L10n::t('Error, XML PHP module required but not installed.'); $status = false; $returnVal = false; } $this->addCheck(L10n::t('XML PHP module'), $status, true, $help); $status = $this->checkFunction('curl_init', L10n::t('libCurl PHP module'), L10n::t('Error: libCURL PHP module required but not installed.'), true ); $returnVal = $returnVal ? $status : false; $status = $this->checkFunction('imagecreatefromjpeg', L10n::t('GD graphics PHP module'), L10n::t('Error: GD graphics PHP module with JPEG support required but not installed.'), true ); $returnVal = $returnVal ? $status : false; $status = $this->checkFunction('openssl_public_encrypt', L10n::t('OpenSSL PHP module'), L10n::t('Error: openssl PHP module required but not installed.'), true ); $returnVal = $returnVal ? $status : false; $status = $this->checkFunction('mb_strlen', L10n::t('mb_string PHP module'), L10n::t('Error: mb_string PHP module required but not installed.'), true ); $returnVal = $returnVal ? $status : false; $status = $this->checkFunction('iconv_strlen', L10n::t('iconv PHP module'), L10n::t('Error: iconv PHP module required but not installed.'), true ); $returnVal = $returnVal ? $status : false; $status = $this->checkFunction('posix_kill', L10n::t('POSIX PHP module'), L10n::t('Error: POSIX PHP module required but not installed.'), true ); $returnVal = $returnVal ? $status : false; $status = $this->checkFunction('json_encode', L10n::t('JSON PHP module'), L10n::t('Error: JSON PHP module required but not installed.'), true ); $returnVal = $returnVal ? $status : false; return $returnVal; } /** * "config/local.config.php" - Check * * Checks if it's possible to create the "config/local.config.php" * * @return bool false if something required failed */ public function checkLocalIni() { $status = true; $help = ""; if ((file_exists('config/local.config.php') && !is_writable('config/local.config.php')) || (!file_exists('config/local.config.php') && !is_writable('.'))) { $status = false; $help = L10n::t('The web installer needs to be able to create a file called "local.config.php" in the "config" folder of your web server and it is unable to do so.') . EOL; $help .= L10n::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 .= L10n::t('At the end of this procedure, we will give you a text to save in a file named local.config.php in your Friendica "config" folder.') . EOL; $help .= L10n::t('You can alternatively skip this procedure and perform a manual installation. Please see the file "INSTALL.txt" for instructions.') . EOL; } $this->addCheck(L10n::t('config/local.config.php is writable'), $status, false, $help); // Local INI File is not required return true; } /** * Smarty3 Template Check * * Checks, if the directory of Smarty3 is writable * * @return bool false if something required failed */ public function checkSmarty3() { $status = true; $help = ""; if (!is_writable('view/smarty3')) { $status = false; $help = L10n::t('Friendica uses the Smarty3 template engine to render its web views. Smarty3 compiles templates to PHP to speed up rendering.') . EOL; $help .= L10n::t('In order to store these compiled templates, the web server needs to have write access to the directory view/smarty3/ under the Friendica top level folder.') . EOL; $help .= L10n::t("Please ensure that the user that your web server runs as \x28e.g. www-data\x29 has write access to this folder.") . EOL; $help .= L10n::t("Note: as a security measure, you should give the web server write access to view/smarty3/ only--not the template files \x28.tpl\x29 that it contains.") . EOL; } $this->addCheck(L10n::t('view/smarty3 is writable'), $status, true, $help); return $status; } /** * ".htaccess" - Check * * Checks, if "url_rewrite" is enabled in the ".htaccess" file * * @param string $baseurl The baseurl of the app * @return bool false if something required failed * @throws \Friendica\Network\HTTPException\InternalServerErrorException */ public function checkHtAccess($baseurl) { $status = true; $help = ""; $error_msg = ""; if (function_exists('curl_init')) { $fetchResult = Network::fetchUrlFull($baseurl . "/install/testrewrite"); $url = Strings::normaliseLink($baseurl . "/install/testrewrite"); if ($fetchResult->getReturnCode() != 204) { $fetchResult = Network::fetchUrlFull($url); } if ($fetchResult->getReturnCode() != 204) { $status = false; $help = L10n::t('Url rewrite in .htaccess is not working. Make sure you copied .htaccess-dist to .htaccess.'); $error_msg = []; $error_msg['head'] = L10n::t('Error message from Curl when fetching'); $error_msg['url'] = $fetchResult->getRedirectUrl(); $error_msg['msg'] = $fetchResult->getError(); } $this->addCheck(L10n::t('Url rewrite is working'), $status, true, $help, $error_msg); } else { // cannot check modrewrite if libcurl is not installed /// @TODO Maybe issue warning here? } return $status; } /** * Imagick Check * * Checks, if the imagick module is available * * @return bool false if something required failed */ public function checkImagick() { $imagick = false; $gif = false; if (class_exists('Imagick')) { $imagick = true; $supported = Image::supportedTypes(); if (array_key_exists('image/gif', $supported)) { $gif = true; } } if (!$imagick) { $this->addCheck(L10n::t('ImageMagick PHP extension is not installed'), $imagick, false, ""); } else { $this->addCheck(L10n::t('ImageMagick PHP extension is installed'), $imagick, false, ""); if ($imagick) { $this->addCheck(L10n::t('ImageMagick supports GIF'), $gif, false, ""); } } // Imagick is not required return true; } /** * Checking the Database connection and if it is available for the current installation * * @param string $dbhost Hostname/IP of the Friendica Database * @param string $dbuser Username of the Database connection credentials * @param string $dbpass Password of the Database connection credentials * @param string $dbdata Name of the Database * * @return bool true if the check was successful, otherwise false * @throws Exception */ public function checkDB($dbhost, $dbuser, $dbpass, $dbdata) { if (!DBA::connect($dbhost, $dbuser, $dbpass, $dbdata)) { $this->addCheck(L10n::t('Could not connect to database.'), false, true, ''); return false; } if (DBA::connected()) { if (DBStructure::existsTable('user')) { $this->addCheck(L10n::t('Database already in use.'), false, true, ''); return false; } } return true; } }