moodle/admin/uploaduserlib.php
2011-03-27 23:48:41 +02:00

351 lines
11 KiB
PHP

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Bulk user registration functions
*
* @package core
* @subpackage admin
* @copyright 2004 onwards Martin Dougiamas (http://dougiamas.com)
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
define('UU_USER_ADDNEW', 0);
define('UU_USER_ADDINC', 1);
define('UU_USER_ADD_UPDATE', 2);
define('UU_USER_UPDATE', 3);
define('UU_UPDATE_NOCHANGES', 0);
define('UU_UPDATE_FILEOVERRIDE', 1);
define('UU_UPDATE_ALLOVERRIDE', 2);
define('UU_UPDATE_MISSING', 3);
define('UU_BULK_NONE', 0);
define('UU_BULK_NEW', 1);
define('UU_BULK_UPDATED', 2);
define('UU_BULK_ALL', 3);
define('UU_PWRESET_NONE', 0);
define('UU_PWRESET_WEAK', 1);
define('UU_PWRESET_ALL', 2);
/**
* Tracking of processed users.
*
* This class prints user information into a html table.
*
* @package core
* @subpackage admin
* @copyright 2007 Petr Skoda {@link http://skodak.org}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class uu_progress_tracker {
private $_row;
public $columns = array('status', 'line', 'id', 'username', 'firstname', 'lastname', 'email', 'password', 'auth', 'enrolments', 'deleted');
/**
* Print table header.
* @return void
*/
public function start() {
$ci = 0;
echo '<table id="uuresults" class="generaltable boxaligncenter flexible-wrap" summary="'.get_string('uploadusersresult', 'admin').'">';
echo '<tr class="heading r0">';
echo '<th class="header c'.$ci++.'" scope="col">'.get_string('status').'</th>';
echo '<th class="header c'.$ci++.'" scope="col">'.get_string('uucsvline', 'admin').'</th>';
echo '<th class="header c'.$ci++.'" scope="col">ID</th>';
echo '<th class="header c'.$ci++.'" scope="col">'.get_string('username').'</th>';
echo '<th class="header c'.$ci++.'" scope="col">'.get_string('firstname').'</th>';
echo '<th class="header c'.$ci++.'" scope="col">'.get_string('lastname').'</th>';
echo '<th class="header c'.$ci++.'" scope="col">'.get_string('email').'</th>';
echo '<th class="header c'.$ci++.'" scope="col">'.get_string('password').'</th>';
echo '<th class="header c'.$ci++.'" scope="col">'.get_string('authentication').'</th>';
echo '<th class="header c'.$ci++.'" scope="col">'.get_string('enrolments', 'enrol').'</th>';
echo '<th class="header c'.$ci++.'" scope="col">'.get_string('delete').'</th>';
echo '</tr>';
$this->_row = null;
}
/**
* Flush previous line and start a new one.
* @return void
*/
public function flush() {
if (empty($this->_row) or empty($this->_row['line']['normal'])) {
// Nothing to print - each line has to have at least number
$this->_row = array();
foreach ($this->columns as $col) {
$this->_row[$col] = array('normal'=>'', 'info'=>'', 'warning'=>'', 'error'=>'');
}
return;
}
$ci = 0;
$ri = 1;
echo '<tr class="r'.$ri.'">';
foreach ($this->_row as $key=>$field) {
foreach ($field as $type=>$content) {
if ($field[$type] !== '') {
$field[$type] = '<span class="uu'.$type.'">'.$field[$type].'</span>';
} else {
unset($field[$type]);
}
}
echo '<td class="cell c'.$ci++.'">';
if (!empty($field)) {
echo implode('<br />', $field);
} else {
echo '&nbsp;';
}
echo '</td>';
}
echo '</tr>';
foreach ($this->columns as $col) {
$this->_row[$col] = array('normal'=>'', 'info'=>'', 'warning'=>'', 'error'=>'');
}
}
/**
* Add tracking info
* @param string $col name of column
* @param string $msg message
* @param string $level 'normal', 'warning' or 'error'
* @param bool $merge true means add as new line, false means override all previous text of the same type
* @return void
*/
public function track($col, $msg, $level = 'normal', $merge = true) {
if (empty($this->_row)) {
$this->flush(); //init arrays
}
if (!in_array($col, $this->columns)) {
debugging('Incorrect column:'.$col);
return;
}
if ($merge) {
if ($this->_row[$col][$level] != '') {
$this->_row[$col][$level] .='<br />';
}
$this->_row[$col][$level] .= $msg;
} else {
$this->_row[$col][$level] = $msg;
}
}
/**
* Print the table end
* @return void
*/
public function close() {
$this->flush();
echo '</table>';
}
}
/**
* Validation callback function - verified the column line of csv file.
* Converts column names to lowercase too.
* @param csv_import_reader $cir
* @param array standard user fields
* @param array custom profile fields
* @param moodle_url $returnurl return url in case of any error
* @return array list of fields
*/
function uu_validate_user_upload_columns(csv_import_reader $cir, $stdfields, $frofilefields, moodle_url $returnurl) {
$columns = $cir->get_columns();
if (empty($columns)) {
$cir->close();
$cir->cleanup();
print_error('cannotreadtmpfile', 'error', $returnurl);
}
if (count($columns) < 2) {
$cir->close();
$cir->cleanup();
print_error('csvfewcolumns', 'error', $returnurl);
}
// test columns
$processed = array();
foreach ($columns as $key=>$unused) {
$field = strtolower($columns[$key]); // no unicode expected here, ignore case
if (!in_array($field, $stdfields) && !in_array($field, $frofilefields) &&// if not a standard field and not an enrolment field, then we have an error
!preg_match('/^course\d+$/', $field) && !preg_match('/^group\d+$/', $field) &&
!preg_match('/^type\d+$/', $field) && !preg_match('/^role\d+$/', $field) &&
!preg_match('/^enrolperiod\d+$/', $field)) {
print_error('invalidfieldname', 'error', $returnurl, $field);
}
if (in_array($field, $processed)) {
$cir->close();
$cir->cleanup();
print_error('duplicatefieldname', 'error', $returnurl, $field);
}
$processed[$key] = $field;
}
return $processed;
}
/**
* Increments username - increments trailing number or adds it if not present.
* Varifies that the new username does not exist yet
* @param string $username
* @return incremented username which does not exist yet
*/
function uu_increment_username($username) {
global $DB, $CFG;
if (!preg_match_all('/(.*?)([0-9]+)$/', $username, $matches)) {
$username = $username.'2';
} else {
$username = $matches[1][0].($matches[2][0]+1);
}
if ($DB->record_exists('user', array('username'=>$username, 'mnethostid'=>$CFG->mnet_localhost_id))) {
return uu_increment_username($username);
} else {
return $username;
}
}
/**
* Check if default field contains templates and apply them.
* @param string template - potential tempalte string
* @param object user object- we need username, firstname and lastname
* @return string field value
*/
function uu_process_template($template, $user) {
if (is_array($template)) {
// hack for for support of text editors with format
$t = $template['text'];
} else {
$t = $template;
}
if (strpos($t, '%') === false) {
return $template;
}
$username = isset($user->username) ? $user->username : '';
$firstname = isset($user->firstname) ? $user->firstname : '';
$lastname = isset($user->lastname) ? $user->lastname : '';
$callback = partial('uu_process_template_callback', $username, $firstname, $lastname);
$result = preg_replace_callback('/(?<!%)%([+-~])?(\d)*([flu])/', $callback, $t);
if (is_null($result)) {
return $template; //error during regex processing??
}
if (is_array($template)) {
$template['text'] = $result;
return $t;
} else {
return $result;
}
}
/**
* Internal callback function.
*/
function uu_process_template_callback($username, $firstname, $lastname, $block) {
$textlib = textlib_get_instance();
switch ($block[3]) {
case 'u':
$repl = $username;
break;
case 'f':
$repl = $firstname;
break;
case 'l':
$repl = $lastname;
break;
default:
return $block[0];
}
switch ($block[1]) {
case '+':
$repl = $textlib->strtoupper($repl);
break;
case '-':
$repl = $textlib->strtolower($repl);
break;
case '~':
$repl = $textlib->strtotitle($repl);
break;
}
if (!empty($block[2])) {
$repl = $textlib->substr($repl, 0 , $block[2]);
}
return $repl;
}
/**
* Returns list of auth plugins that are enabled and known to work.
*
* If ppl want to use some other auth type they have to include it
* in the CSV file next on each line.
*
* @return array type=>name
*/
function uu_supported_auths() {
// only following plugins are guaranteed to work properly
$whitelist = array('manual', 'nologin', 'none', 'email');
$plugins = get_enabled_auth_plugins();
$choices = array();
foreach ($plugins as $plugin) {
if (!in_array($plugin, $whitelist)) {
continue;
}
$choices[$plugin] = get_string('pluginname', "auth_{$plugin}");
}
return $choices;
}
/**
* Returns list of roles that are assignable in courses
* @return array
*/
function uu_allowed_roles() {
// let's cheat a bit, frontpage is guaranteed to exist and has the same list of roles ;-)
$roles = get_assignable_roles(get_context_instance(CONTEXT_COURSE, SITEID), ROLENAME_ORIGINALANDSHORT);
return array_reverse($roles, true);
}
/**
* Returns mapping of all roles using short role name as index.
* @return array
*/
function uu_allowed_roles_cache() {
$allowedroles = get_assignable_roles(get_context_instance(CONTEXT_COURSE, SITEID), ROLENAME_SHORT);
foreach ($allowedroles as $rid=>$rname) {
$rolecache[$rid] = new stdClass();
$rolecache[$rid]->id = $rid;
$rolecache[$rid]->name = $rname;
if (!is_numeric($rname)) { // only non-numeric shortnames are supported!!!
$rolecache[$rname] = new stdClass();
$rolecache[$rname]->id = $rid;
$rolecache[$rname]->name = $rname;
}
}
return $rolecache;
}