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MDL-15244, add ability to block ip addresses for HEAD.

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This commit is contained in:
dongsheng 2008-07-14 08:14:31 +00:00
parent fb94cd4848
commit ab99c8f014
4 changed files with 60 additions and 0 deletions
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44
admin/ipblocker.php Normal file
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@ -0,0 +1,44 @@
<?php // $Id$
require('../config.php');
require_once($CFG->libdir.'/adminlib.php');
$iplist = optional_param('list', '', PARAM_CLEAN);
admin_externalpage_setup('ipblocker');
if ($form = data_submitted()) {
if (confirm_sesskey()) {
$ips = explode("\n", $iplist);
$result = array();
foreach($ips as $ip) {
if(preg_match('#^(\d{1,3})(\.\d{1,3}){0,3}$#', $ip, $match) ||
preg_match('#^(\d{1,3})(\.\d{1,3}){0,3}(\/\d{1,2})$#', $ip, $match) ||
preg_match('#^(\d{1,3})(\.\d{1,3}){3}(-\d{1,3})$#', $ip, $match)) {
$result[] = $ip;
}
}
set_config('blockedip', serialize($result));
}
}
admin_externalpage_print_header();
$iplist = unserialize(get_config(null, 'blockedip'));
if(empty($iplist)) {
$iplist = array();
}
$str = '';
foreach($iplist as $ip){
$str .= $ip."\n";
}
echo '<div style="text-align:center;">';
echo '<form method="post">';
echo '<h1>'.get_string('blockediplist', 'admin').'</h1>';
print_textarea(false, 20, 50, 600, 400, "list", $str);
echo '<p><input type="hidden" name="sesskey" value="'.sesskey().'" />';
echo '<input type="submit" value="'.get_string('submit').'" />';
echo helpbutton('blockip', 'Help');
echo '</p>';
echo '</form>';
echo '</div>';
admin_externalpage_print_footer();
?>

2
admin/settings/server.php
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@ -161,6 +161,8 @@ $ADMIN->add('server', $temp);
$ADMIN->add('server', new admin_externalpage('maintenancemode', get_string('sitemaintenancemode', 'admin'), "$CFG->wwwroot/$CFG->admin/maintenance.php"));
$ADMIN->add('server', new admin_externalpage('ipblocker', get_string('ipblocker', 'admin'), "$CFG->wwwroot/$CFG->admin/ipblocker.php"));
$temp = new admin_settingpage('cleanup', get_string('cleanup', 'admin'));
$temp->add(new admin_setting_configselect('longtimenosee', get_string('longtimenosee', 'admin'), get_string('configlongtimenosee', 'admin'), 120, array(0 => get_string('never'),

2
lang/en_utf8/admin.php
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@ -27,6 +27,7 @@ $string['backups'] = 'Backups';
$string['badwordsconfig'] = 'Enter your list of bad words separated by commas.';
$string['badwordsdefault'] = 'If the custom list is empty, a default list from the language pack will be used.';
$string['badwordslist'] = 'Custom bad words list';
$string['blockediplist'] = 'Blocked IP Address List';
$string['blockinstances'] = 'Instances';
$string['blockmultiple'] = 'Multiple';
$string['blocksettings'] = 'Manage blocks';
@ -413,6 +414,7 @@ $string['installedlangs'] = 'Installed language packs';
$string['intcachemax'] = 'Int. cache max';
$string['invalidsection'] = 'Invalid section.';
$string['invaliduserchangeme'] = 'Username \"changeme\" is reserved -- you cannot create an account with it.';
$string['ipblocker'] = 'IP Blocker';
$string['iplookup'] = 'IP address lookup';
$string['iplookupinfo'] = '
By default Moodle uses the free online NetGeo (The Internet Geographic Database) server to lookup location of IP addresses, unfortunately this database is not maintained anymore and may return <em>wildly incorrect</em> data.

12
lib/setup.php
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@ -527,6 +527,18 @@ global $HTTPSPAGEREQUIRED;
}
}
$iplist = unserialize(get_config(null, 'blockedip'));
if(!empty($iplist)) {
foreach($iplist as $ip) {
if(address_in_subnet(getremoteaddr(), $ip)){
// Telling the banned user the site is not
// available currently.
echo get_string('sitemaintenance', 'admin');
die;
}
}
}
/// note: we can not block non utf-8 installatrions here, because empty mysql database
/// might be converted to utf-8 in admin/index.php during installation
?>