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<?php // $Id: setuplib.php,v 1.3.2.1 2006/08/28 21:13:12 skodak Exp $
// These functions are required very early in the Moodle
// setup process, before any of the main libraries are
// loaded.
/**
* Initializes our performance info early.
*
* Pairs up with get_performance_info() which is actually
* in moodlelib.php. This function is here so that we can
* call it before all the libs are pulled in.
*
* @uses $PERF
*/
function init_performance_info() {
global $PERF;
$PERF = new Object;
$PERF->dbqueries = 0;
$PERF->logwrites = 0;
if (function_exists('microtime')) {
$PERF->starttime = microtime();
}
if (function_exists('memory_get_usage')) {
$PERF->startmemory = memory_get_usage();
}
if (function_exists('posix_times')) {
$PERF->startposixtimes = posix_times();
}
}
/**
* Create a directory.
*
* @uses $CFG
* @param string $directory a string of directory names under $CFG->dataroot eg stuff/assignment/1
* param bool $shownotices If true then notification messages will be printed out on error.
* @return string|false Returns full path to directory if successful, false if not
*/
function make_upload_directory($directory, $shownotices=true) {
global $CFG;
$currdir = $CFG->dataroot;
umask(0000);
if (!file_exists($currdir)) {
if (! mkdir($currdir, $CFG->directorypermissions)) {
if ($shownotices) {
echo '<div class="notifyproblem" align="center">ERROR: You need to create the directory '.
$currdir .' with web server write access</div>'."<br />\n";
}
return false;
}
if ($handle = fopen($currdir.'/.htaccess', 'w')) { // For safety
@fwrite($handle, "deny from all\r\nAllowOverride None\r\n");
@fclose($handle);
}
}
$dirarray = explode('/', $directory);
foreach ($dirarray as $dir) {
$currdir = $currdir .'/'. $dir;
if (! file_exists($currdir)) {
if (! mkdir($currdir, $CFG->directorypermissions)) {
if ($shownotices) {
echo '<div class="notifyproblem" align="center">ERROR: Could not find or create a directory ('.
$currdir .')</div>'."<br />\n";
}
return false;
}
//@chmod($currdir, $CFG->directorypermissions); // Just in case mkdir didn't do it
}
}
return $currdir;
}
/**
* This function will introspect inside DB to detect it it's a UTF-8 DB or no
* Used from setup.php to set correctly "set names" when the installation
* process is performed without the initial and beautiful installer
*/
function setup_is_unicodedb() {
global $CFG, $db;
$unicodedb = false;
switch ($CFG->dbtype) {
case 'mysql':
/// Get MySQL character_set_database value
$rs = $db->Execute("SHOW VARIABLES LIKE 'character_set_database'");
if ($rs && $rs->RecordCount() > 0) {
$records = $rs->GetAssoc(true);
$encoding = $records['character_set_database']['Value'];
if (strtoupper($encoding) == 'UTF8') {
$unicodedb = true;
}
}
break;
case 'postgres7':
/// Get PostgreSQL server_encoding value
$rs = $db->Execute("SHOW server_encoding");
if ($rs && $rs->RecordCount() > 0) {
$encoding = $rs->fields['server_encoding'];
if (strtoupper($encoding) == 'UNICODE' || strtoupper($encoding) == 'UTF8') {
$unicodedb = true;
}
}
break;
}
return $unicodedb;
}
?>
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