t('PostgreSQL username and/or password not valid'),
$l->t('You need to enter either an existing account or the administrator.'));
}
$e_user = pg_escape_string($dbuser);
//check for roles creation rights in postgresql
$query="SELECT 1 FROM pg_roles WHERE rolcreaterole=TRUE AND rolname='$e_user'";
$result = pg_query($connection, $query);
if($result and pg_num_rows($result) > 0) {
//use the admin login data for the new database user
//add prefix to the postgresql user name to prevent collisions
$dbusername='oc_'.$username;
//create a new password so we don't need to store the admin config in the config file
$dbpassword=OC_Util::generate_random_bytes(30);
self::createDBUser($dbusername, $dbpassword, $connection);
\OC_Config::setValue('dbuser', $dbusername);
\OC_Config::setValue('dbpassword', $dbpassword);
//create the database
self::createDatabase($dbname, $dbusername, $connection);
}
else {
\OC_Config::setValue('dbuser', $dbuser);
\OC_Config::setValue('dbpassword', $dbpass);
//create the database
self::createDatabase($dbname, $dbuser, $connection);
}
// the connection to dbname=postgres is not needed anymore
pg_close($connection);
// connect to the ownCloud database (dbname=$dbname) and check if it needs to be filled
$dbuser = \OC_Config::getValue('dbuser');
$dbpass = \OC_Config::getValue('dbpassword');
$e_host = addslashes($dbhost);
$e_dbname = addslashes($dbname);
$e_user = addslashes($dbuser);
$e_password = addslashes($dbpass);
$connection_string = "host='$e_host' dbname='$e_dbname' user='$e_user' password='$e_password'";
$connection = @pg_connect($connection_string);
if(!$connection) {
throw new DatabaseSetupException($l->t('PostgreSQL username and/or password not valid'),
$l->t('You need to enter either an existing account or the administrator.'));
}
$query = "select count(*) FROM pg_class WHERE relname='{$dbtableprefix}users' limit 1";
$result = pg_query($connection, $query);
if($result) {
$row = pg_fetch_row($result);
}
if(!$result or $row[0]==0) {
\OC_DB::createDbFromStructure('db_structure.xml');
}
}
private static function createDatabase($name, $user, $connection) {
//we cant use OC_BD functions here because we need to connect as the administrative user.
$l = \OC_Setup::getTrans();
$e_name = pg_escape_string($name);
$e_user = pg_escape_string($user);
$query = "select datname from pg_database where datname = '$e_name'";
$result = pg_query($connection, $query);
if(!$result) {
$entry = $l->t('DB Error: "%s"', array(pg_last_error($connection))) . '
';
$entry .= $l->t('Offending command was: "%s"', array($query)) . '
';
\OC_Log::write('setup.pg', $entry, \OC_Log::WARN);
}
if(! pg_fetch_row($result)) {
//The database does not exists... let's create it
$query = "CREATE DATABASE \"$e_name\" OWNER \"$e_user\"";
$result = pg_query($connection, $query);
if(!$result) {
$entry = $l->t('DB Error: "%s"', array(pg_last_error($connection))) . '
';
$entry .= $l->t('Offending command was: "%s"', array($query)) . '
';
\OC_Log::write('setup.pg', $entry, \OC_Log::WARN);
}
else {
$query = "REVOKE ALL PRIVILEGES ON DATABASE \"$e_name\" FROM PUBLIC";
pg_query($connection, $query);
}
}
}
private static function createDBUser($name, $password, $connection) {
$l = \OC_Setup::getTrans();
$e_name = pg_escape_string($name);
$e_password = pg_escape_string($password);
$query = "select * from pg_roles where rolname='$e_name';";
$result = pg_query($connection, $query);
if(!$result) {
$entry = $l->t('DB Error: "%s"', array(pg_last_error($connection))) . '
';
$entry .= $l->t('Offending command was: "%s"', array($query)) . '
';
\OC_Log::write('setup.pg', $entry, \OC_Log::WARN);
}
if(! pg_fetch_row($result)) {
//user does not exists let's create it :)
$query = "CREATE USER \"$e_name\" CREATEDB PASSWORD '$e_password';";
$result = pg_query($connection, $query);
if(!$result) {
$entry = $l->t('DB Error: "%s"', array(pg_last_error($connection))) . '
';
$entry .= $l->t('Offending command was: "%s"', array($query)) . '
';
\OC_Log::write('setup.pg', $entry, \OC_Log::WARN);
}
}
else { // change password of the existing role
$query = "ALTER ROLE \"$e_name\" WITH PASSWORD '$e_password';";
$result = pg_query($connection, $query);
if(!$result) {
$entry = $l->t('DB Error: "%s"', array(pg_last_error($connection))) . '
';
$entry .= $l->t('Offending command was: "%s"', array($query)) . '
';
\OC_Log::write('setup.pg', $entry, \OC_Log::WARN);
}
}
}
}