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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><!-- written by Rexy -->
<HEAD>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<TITLE>ALCASAR DNS filtering</TITLE>
<link rel="stylesheet" href="/css/style.css" type="text/css">
</HEAD>
<body>
<?
function form_filter ($form_content)
{
// réencodage iso + format unix + rc fin de ligne (ouf...)
$list = str_replace("\r\n", "\n", utf8_decode($form_content));
if (strlen($list) != 0){
if ($list[strlen($list)-1] != "\n") { $list[strlen($list)]="\n";} ;} ;
return $list;
}
function form_filter_ip($form_content, $color)
{
//# reconstruction des ip
$list = explode("\n", form_filter($form_content));
$new_list = "";
foreach($list as &$value)
{
if(preg_match('/([0-9]{1,3}.){3}[0-9]{1,3}/', $value))
{
$new_list = $new_list.$value."\n";
}
}
if($color == "white")
{
return preg_replace("/(.*)\n/", "add whitelist_ip_allowed $1\n", $new_list);
}
else
{
return preg_replace("/(.*)\n/", "add blacklist_ip_blocked $1\n", $new_list);
}
}
function echo_file ($filename)
{
if (file_exists($filename))
{
if (filesize($filename) != 0)
{
$pointeur=fopen($filename,"r");
$tampon = fread($pointeur, filesize($filename));
fclose($pointeur);
echo $tampon;
}
}
else
{
echo "$filename doesn't exist";
}
}
function echo_ip_file ($filename)
{
exec("cat $filename | cut -d ' ' -f3", $resultat);
for($i=0; $i<exec("wc -l $filename"); $i++)
{
echo $resultat[$i]."\n";
}
}
#maximum length for top-level DNS
function max_tld()
{
$url_tld = "http://data.iana.org/TLD/tlds-alpha-by-domain.txt";
$result_tld = file_get_contents($url_tld,false);
$max_tld = 18; #valeur de base si le site ne répond plus
if($result_tld !== FALSE){
foreach(explode("\n", $result_tld) as $line)
{
if((strpos($line,'-') === false) and (strpos($line,'#') === false))
{
if(strlen($line) > $max_tld)
{
$max_tld = strlen($line);
}
}
}
}
return $max_tld;
}
# Choice of language
$Language = 'en';
if(isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])){
$Langue = explode(",",$_SERVER['HTTP_ACCEPT_LANGUAGE']);
$Language = strtolower(substr(chop($Langue[0]),0,2)); }
if($Language == 'fr'){
$l_bl="Liste noire générale";
$l_list_version="Version de la liste : ";
$l_bl_categories="Sélectionnez les catégories à filtrer";
$l_download_bl="Télécharger la dernière version";
$l_fingerprint="L'empreinte numérique du fichier téléchargé est : ";
$l_fingerprint2="Vérifiez-là en suivant ce lien (ligne 'blacklists.tar.gz') : ";
$l_activate_bl="Activer la nouvelle version";
$l_reject_bl="Rejeter";
$l_warning="Temps estimé : une minute.";
$l_specific_filtering="Filtrage special";
$l_forbidden_dns="Noms de domaine filtrés";
$l_one_dns="Entrez un nom de domaine par ligne (exemple : .domaine.org)";
$l_maj_rehabilitated="Noms de domaine ou IP réhabilités";
$l_rehabilitated_dns="Noms de domaine réhabilités";
$l_rehabilitated_dns_explain="Entrez ici des noms de domaine bloqués par la liste noire <BR> que vous souhaitez réhabiliter.";
$l_add_to_bl="Noms de domaine ou IP ajoutés à la liste noire";
$l_forbidden_ip="IP filtrées";
$l_forbidden_ip_explain="Entrez une IP par ligne (exemple : 123.123.123.123)<br/>ou une ADRESSE RESEAU (exemple : 123.123.0.0/16)";
$l_rehabilitated_ip="IP réhabilitées";
$l_rehabilitated_ip_explain="Entrez ici des IP bloquées par la liste noire <BR> que vous souhaitez réhabiliter.";
$l_one_ip="Entrez une IP par ligne (exemple : 123.123.123.123)";
$l_record="Enregistrer les modifications";
$l_wait="Une fois validées, 10 secondes sont nécessaires pour traiter vos modifications";
$l_ip_filtering="Filtrer les URLs contenant une adresse IP au lieu d'un nom de domaine (ex: http://25.56.58.59/index.htm)";
$l_safe_searching="Activer le contrôle scolaire/parental des moteurs de recherche : google, yahoo, bing, metacrawler et Youtube.";
$l_safe_youtube="Pour Youtube, entrez votre identifiant ici : ";
$l_youtube_id="(<a href='http://www.youtube.com/education_signup' target='cat_help' onclick=window.open('http://www.youtube.com/education_signup','cat_help','width=800,height=600,toolbar=no,scrollbars=yes,resizable=yes') title='Youtube for school'>lien pour créer un identifiant Youtube (Id)</a>)";
$l_error_open_file="Erreur d'ouverture du fichier";
$l_additional_file_title="Fichiers de 'listes noires' additionnels";
$l_file_list="Liste des fichiers";
$l_add_file="Ajouter un fichier";
$l_add_file_explain="Chaque ligne du fichier doit être une adresse IP ou un nom de domaine";
$l_file_name="Nom du fichier";
$l_file_remove="Supprimer";
$l_error_upload="Erreur d'envoi du fichier";
$l_remove="Supprimer";
$l_submit="Envoyer";
$l_nb_ip="Nombre d'IP";
$l_nb_domain_names="Nombre de noms de domaine";
$l_nbDomainNames="Noms de domaine :";
$l_nbUrl="Url :";
$l_nbIp="Ip :";
}
else {
$l_bl="BlackList";
$l_list_version="List version : ";
$l_bl_categories="Select the categories to filter";
$l_download_bl="Download the last version";
$l_fingerprint="The digital fingerprint of the downloaded blacklist is : ";
$l_fingerprint2="Verify it with this link (line 'blacklists.tar.gz') : ";
$l_activate_bl="Activate the new version";
$l_reject_bl="Reject";
$l_warning="Estimated time : one minute.";
$l_specific_filtering="Specific filtering";
$l_forbidden_dns="Filtered domain names";
$l_allowed_dns="Allowed domain names";
$l_one_dns="Enter one domain name per row (example : .domain.org)";
$l_maj_rehabilitated="Domain names or IP rehabilitated";
$l_rehabilitated_dns="Rehabilitated domain names";
$l_rehabilitated_dns_explain="Enter here domain names that are blocked by the blacklist <BR> and you want to rehabilitate.";
$l_add_to_bl="Domain names or IP to add to blacklist";
$l_forbidden_ip="Filtered IP";
$l_forbidden_ip_explain="Enter one IP per row (example : 123.123.123.123)<br/>or a NETWORK ADDRESS (example : 123.123.0.0/16)";
$l_rehabilitated_ip="Rehabilitated IP";
$l_rehabilitated_ip_explain="Enter here IP that are blocked by the blacklist <BR> and you want to rehabilitate.";
$l_one_ip="Enter one IP per row (example : 123.123.123.123)";
$l_record="Save changes";
$l_wait="Once validated, 10 seconds are necessary to compute your modifications";
$l_ip_filtering="Filtering URLs that contain an IP address instead of a domain name (ie: http://25.56.58.59/index.htm)";
$l_safe_searching="Enabling school/parental control for the search engines google, yahoo, bing, metacrawler and Youtube.";
$l_safe_youtube="For Youtube, enter your ID here : ";
$l_youtube_id="(<a href='http://www.youtube.com/education_signup' target='cat_help' onclick=window.open('http://www.youtube.com/education_signup','cat_help','width=800,height=600,toolbar=no,scrollbars=yes,resizable=yes') title='Youtube for school'>link to create a Youtube Id</a>)";
$l_error_open_file="Error opening file";
$l_additional_file_title="Additional blacklist files";
$l_file_list="Files list";
$l_add_file="Add a file";
$l_add_file_explain="Each line of the file must be an IP address or a domain name";
$l_file_name="Filename";
$l_file_remove="Remove";
$l_error_upload="Error during the upload process";
$l_remove="Delete";
$l_submit="Submit";
$l_nb_ip="Number of IP";
$l_nb_domain_names="Number of domain names";
$l_nbDomainNames="Domain names :";
$l_nbUrl="Url :";
$l_nbIp="Ip :";
}
$dir_etc="/usr/local/etc/";
$dir_dg="/etc/dansguardian/lists/";
$dir_bl_ip="/usr/local/share/iptables-bl/";
$bl_categories=$dir_etc."alcasar-bl-categories";
$bl_categories_enabled=$dir_etc."alcasar-bl-categories-enabled";
$conf_file=$dir_etc."alcasar.conf";
$dir_blacklist=$dir_dg."blacklist/";
$urlregex_file=$dir_dg."urlregexplist";
$bannedsite_file=$dir_dg."bannedsitelist";
$dir_tmp="/tmp/blacklists";
$upload_dir_ip = "/usr/local/share/iptables-bl-enabled/";
$upload_dir_domain_names = "/usr/local/share/dnsmasq-bl-enabled/";
# default values
if (is_file ($conf_file))
{
$tab=file($conf_file);
if ($tab)
{
foreach ($tab as $line)
{
$field=explode("=", $line);
if ($field[0] == "YOUTUBE_ID")
{
$YOUTUBE_ID=trim($field[1]);
}
if ($field[0] == "PRIVATE_IP")
{
$PRIVATE_IP_MASK=trim($field[1]);
$tmp = explode("/",$PRIVATE_IP_MASK);
$PRIVATE_IP=$tmp[0];
}
}
}
}
else { echo "$l_error_open_file $conf_file";}
if (isset($_POST['choix'])){ $choix=$_POST['choix']; } else { $choix=""; }
switch ($choix)
{
case 'Download_list' :
exec ("sudo /usr/local/bin/alcasar-bl.sh --download");
break;
case 'Active_list' :
exec ("sudo /usr/local/bin/alcasar-bl.sh --adapt");
exec ("sudo /usr/local/bin/alcasar-bl.sh --reload");
break;
case 'Reject_list' :
unlink ("$dir_tmp/blacklists.tar.gz"); unlink ("$dir_tmp/md5sum");
break;
case 'MAJ_cat_bl' :
if (file_exists($bl_categories_enabled))
{
$pointeur=fopen($bl_categories_enabled, "w+");
foreach ($_POST as $key => $value)
{
if (strstr($key,'chk-'))
{
$line=str_replace('chk-','',$key)."\n";
fwrite($pointeur,$line);
}
}
fclose($pointeur);
}
else {echo "$l_error_open_file $bl_categories_enabled";}
$fichier=fopen($dir_dg."blacklists/ossi/domains","w+");
fputs($fichier, form_filter($_POST['OSSI_bl_domains']));
fclose($fichier);
unset($_POST['OSSI_bl_domains']);
$fichier=fopen($dir_dg."exceptionsitelist","w+");
fputs($fichier, form_filter($_POST['BL_rehabilited_domains']));
fclose($fichier);
unset($_POST['BL_rehabilited_domains']);
$fichier=fopen($dir_bl_ip."ossi","w+");
fputs($fichier, form_filter_ip($_POST['OSSI_bl_ip'], "black"));
fclose($fichier);
unset($_POST['OSSI_bl_ip']);
$fichier=fopen($dir_dg."exceptioniplist","w+");
fputs($fichier, form_filter($_POST['BL_rehabilited_ip']));
fclose($fichier);
unset($_POST['BL_rehabilited_ip']);
exec ("sudo /usr/local/bin/alcasar-bl.sh --reload");
break;
case 'Specific_filtering' :
$pureip="-pureip_off"; $safesearch="-safesearch_off"; ;
foreach ($_POST as $key => $value)
{
if (strstr($key,'chk-ip')) $pureip="-pureip_on";
if (strstr($key,'chk-safesearch')) $safesearch="-safesearch_on";
}
if ($_POST['Youtube_ID'] == '') { $New_ID="ABCD1234567890abcdef";} // default ID (no action)
else {$New_ID=$_POST['Youtube_ID'];}
file_put_contents($conf_file, str_replace("YOUTUBE_ID=$YOUTUBE_ID", "YOUTUBE_ID=$New_ID", file_get_contents($conf_file)));
$YOUTUBE_ID=$New_ID;
exec ("sudo /usr/local/bin/alcasar-url_filter.sh $safesearch $pureip");
break;
case 'MAJ_ip_file_delete' :
foreach($_POST as $fichier => $value)
{
if($fichier != "choix")
{
exec("rm -rf $upload_dir_ip$fichier");
exec("rm -rf $upload_dir_domain_names$fichier");
exec ("sudo /usr/local/bin/alcasar-bl.sh --reload");
}
}
break;
case 'MAJ_ip_file_upload' :
$nom = str_replace (".", "_",basename($_FILES['fichier_ip']['name']));
# Si un fichier a été choisi
if(!empty($nom))
{
# On l'upload
if(move_uploaded_file($_FILES['fichier_ip']['tmp_name'], $upload_dir_ip.$nom))
{
# On extrait uniquement les ip du fichier
exec("grep -Eo '([0-9]{1,3}\.){3}[0-9]{1,3}' $upload_dir_ip$nom > $upload_dir_ip\ossi-ip");
# Suppression des doublons
exec("sort -u $upload_dir_ip\ossi-ip > $upload_dir_ip\ossi-$nom && rm -f $upload_dir_ip\ossi-ip");
# On adapte le fichier à la sauvegarde du set
exec("sed -i \"s/^/add blacklist_ip_blocked /g\" $upload_dir_ip\ossi-$nom");
# On extrait uniquement les noms de domaine
# max_tld() retourne le nombre max de charactere pour un top-level dns
exec("grep -Eo '([a-zA-Z0-9_-]+\.){1,2}[a-zA-Z]{2,".max_tld()."}' $upload_dir_ip$nom > $upload_dir_domain_names\ossi-domain_names");
# Suppression des doublons
exec("sort -u $upload_dir_domain_names\ossi-domain_names > $upload_dir_domain_names\ossi-$nom && rm -f $upload_dir_domain_names\ossi-domain_names");
# On adapte le fichier pour Dnsmasq
exec("sed -i \"s/^/address=\//g\" $upload_dir_domain_names\ossi-$nom");
exec("sed -i \"s/$/\/$PRIVATE_IP/g\" $upload_dir_domain_names\ossi-$nom");
# Suppression du fichier
exec("rm -f $upload_dir_ip$nom");
}
else
{
echo $l_error_upload;
}
exec ("sudo /usr/local/bin/alcasar-bl.sh --reload");
}
break;
}
?>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr><th>
<?php echo $l_list_version; echo date ("F d Y", filemtime ('/etc/dansguardian/lists/blacklists/README'));?>
</th></tr>
<tr bgcolor="#FFCC66"><td><img src="/images/pix.gif" width="1" height="2"></td></tr>
</table>
<TABLE width="100%" border=1 cellspacing=0 cellpadding=1>
<tr><td valign="middle" align="left" colspan=10>
<FORM action='bl_filter.php' method=POST>
<?php
if ((file_exists("$dir_tmp/blacklists.tar.gz")) && (file_exists("$dir_tmp/md5sum")))
{
echo "$l_fingerprint"; echo_file ("$dir_tmp/md5sum");
echo "<br>$l_fingerprint2<a href='http://dsi.ut-capitole.fr/blacklists/download/MD5SUM.LST' target='cat_help' onclick=window.open('http://dsi.ut-capitole.fr/blacklists/download/MD5SUM.LST','cat_help','width=600,height=150,toolbar=no,scrollbars=yes,resizable=yes') title='verify fingerprint'>dsi.ut-capitole.fr/blacklists/download/MD5SUM.LST</a><br>";
echo "<input type='hidden' name='choix' value='Active_list'>";
echo "<input type='submit' value='$l_activate_bl'> ($l_warning)</FORM>";
echo "<FORM action='bl_filter.php' method=POST>";
echo "<input type='hidden' name='choix' value='Reject_list'>";
echo "<input type='submit' value='$l_reject_bl'></form>";
}
else
{
echo "<input type='hidden' name='choix' value='Download_list'>";
echo "<input type='submit' value='$l_download_bl'>";
echo " ($l_warning)";
}
?>
</FORM>
</td></tr>
</table><br/>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr><th><?php echo $l_bl; ?></th></tr>
<tr bgcolor="#FFCC66"><td><img src="/images/pix.gif" width="1" height="2"></td></tr>
</table>
<table width="100%" border=1 cellspacing=0 cellpadding=1>
<tr><td valign="middle" align="left" colspan=10>
<FORM action='bl_filter.php' method=POST>
<input type='hidden' name='choix' value='MAJ_cat_bl'>
<?php
echo "<center>";
$nbDomainNames = exec ("wc -l /usr/local/share/dnsmasq-bl/* | tail -n 1 | awk '{print $1}'");
$nbUrl = exec ("for file in `find /etc/dansguardian/lists/blacklists/ -name 'urls'`; do nb=$((nb+$(wc -l \$file | awk '{print $1}'))); done; echo \$nb");
$nbIp = exec ("wc -l /usr/local/share/iptables-bl/* | tail -n 1 | awk '{print $1}'");
echo "<b>$l_nbDomainNames</b> $nbDomainNames, <b>$l_nbUrl</b> $nbUrl, <b>$l_nbIp</b> $nbIp<br/>";
echo "$l_bl_categories</center></td></tr>";
//on lit et on interprete le fichier de catégories
$cols=1;
if (file_exists($bl_categories))
{
$pointeur=fopen($bl_categories,"r");
while (!feof ($pointeur))
{
$ligne=fgets($pointeur, 4096);
if ($ligne)
{
if ($cols == 1) { echo "<tr>";}
$categorie=trim(basename($ligne));
if($categorie != "ossi")
{
echo "<td><a href='bl_categories_help.php?liste=bl&cat=$categorie' target='cat_help' onclick=window.open('bl_categories_help.php','cat_help','width=600,height=450,toolbar=no,scrollbars=yes,resizable=yes') title='categories help page'>$categorie</a><br>";
echo "<input type='checkbox' name='chk-$categorie'";
// si la ligne est commentée -> categorie non selectionnée
if (preg_match('/^#/',$ligne, $r)) { echo ">";}
else { echo "checked>"; }
echo "</td>";
$cols++;
}
if ($cols > 10) {
echo "</tr>";
$cols=1; }
}
}
fclose($pointeur);
}
else {
echo "$l_error_open_file $bl_categories";
}
echo "</td></tr>";
echo "<tr><td valign='middle' align='left' colspan=10>";
echo "<center><b>$l_maj_rehabilitated</b></center></td></tr>";
echo "<tr><td width=50% colspan=5 align=center>";
echo "<H3>$l_rehabilitated_dns</H3>$l_rehabilitated_dns_explain<BR>$l_one_dns<BR>";
echo "<textarea name='BL_rehabilited_domains' rows=3 cols=40>";
echo_file ($dir_dg."exceptionsitelist");
echo "</textarea></td>";
echo "<td width=50% colspan=5 align=center>";
echo "<H3>$l_rehabilitated_ip</H3>$l_rehabilitated_ip_explain<BR>$l_one_ip<BR>";
echo "<textarea name='BL_rehabilited_ip' rows=3 cols=40>";
echo_file ($dir_dg."exceptioniplist");
echo "</textarea></td></tr><tr><td width=50% colspan=10>";
echo "<tr><td valign='middle' align='left' colspan=10>";
echo "<center><b>$l_add_to_bl</b></center></td></tr>";
echo "<tr><td width=50% colspan=5 align=center>";
echo "<H3>$l_forbidden_dns</H3>$l_one_dns<BR>";
echo "<textarea name='OSSI_bl_domains' rows=3 cols=40>";
echo_file ($dir_dg."blacklists/ossi/domains");
echo "</textarea></td>";
echo "<td width=50% colspan=5 align=center>";
echo "<H3>$l_forbidden_ip</H3>$l_forbidden_ip_explain<BR>";
echo "<textarea name='OSSI_bl_ip' rows=3 cols=40>";
echo_ip_file ($dir_bl_ip."ossi");
echo "</textarea></td></tr><tr><td colspan=10>";
echo "<input type='submit' value='$l_record'>";
echo "</form> ($l_wait)";
echo "</td></tr></table><br/>";
?>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr><th><?php echo $l_additional_file_title; ?></th></tr>
<tr bgcolor="#FFCC66"><td><img src="/images/pix.gif" width="1" height="2"></td></tr>
</table>
<table width="100%" border=1 cellspacing=0 cellpadding=1>
<form action='bl_filter.php' method='POST'>
<input type='hidden' name='choix' value='MAJ_ip_file_delete'>
<?php
echo "<tr><td width=50% colspan=5 align=center>";
echo "<H3>$l_file_list</H3>";
echo "<table cellspacing=2 cellpadding=3 border=1><tr><th>$l_file_name<th>$l_nb_ip<th>$l_nb_domain_names<th>$l_file_remove</tr>";
exec("cd $upload_dir_ip && ls ossi-*", $fichiersIp);
foreach($fichiersIp as $fichier => $value)
{
echo "<tr><td><center>".exec("sed 's/^.....//g' <<< $value")."</center></td><td><center>".exec("wc -l $upload_dir_ip$value | awk '{print $1}'")."</center></td><td><center>".exec("wc -l $upload_dir_domain_names$value | awk '{print $1}'")."</center></td><td><center><input type='submit' name='$value' value='$l_remove'></center></td></tr>";
}
echo "</table><br/></td></form><form action='bl_filter.php' method='POST' enctype='multipart/form-data'>";
echo "<input type='hidden' name='choix' value='MAJ_ip_file_upload'><td width=50% colspan=5 align=center>";
echo "<H3>$l_add_file</H3>";
echo "$l_add_file_explain";
echo "<input type='file' name='fichier_ip'>";
echo "<input type='submit' value='$l_submit'>";
echo "</td></tr>";
echo "</form>";
echo "</table><br/>";
?>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr><th><?php echo $l_specific_filtering; ?></th></tr>
<tr bgcolor="#FFCC66"><td><img src="/images/pix.gif" width="1" height="2"></td></tr>
</table>
<TABLE width="100%" border=1 cellspacing=0 cellpadding=1>
<FORM action='bl_filter.php' method='POST'>
<input type='hidden' name='choix' value='Specific_filtering'>
<tr><td>
<input type='checkbox' name='chk-ip'
<?php
// verify "pureip" filtering state
if (file_exists($bannedsite_file))
{
$pointeur=fopen($bannedsite_file,"r");
while (!feof ($pointeur))
{
$ligne=fgets($pointeur, 4096);
if ($ligne)
{
if (preg_match('/^\*ip$/',$ligne, $r))
{
echo " checked";
break;
}
}
}
fclose($pointeur);
}
else {
echo "$l_error_open_file $bannedsite_file";
}
echo "> $l_ip_filtering";
?>
</td></tr>
<tr><td>
<input type='checkbox' name='chk-safesearch'
<?php
// verify "safesearch" filtering state
if (file_exists($urlregex_file))
{
$pointeur=fopen($urlregex_file,"r");
while (!feof ($pointeur))
{
$ligne=fgets($pointeur, 4096);
if ($ligne)
{
if (preg_match('/^\"\(\^http\:\/\/\[0\-9a\-z\]\+\\\.google/',$ligne, $r))
{
echo " checked";
break;
}
}
}
fclose($pointeur);
}
else {
echo "$l_error_open_file $urlregex_file";
}
echo "> $l_safe_searching";
echo "<br>$l_safe_youtube";
echo "<input type='text' name='Youtube_ID' size='30' value='";
if ($YOUTUBE_ID == "ABCD1234567890abcdef") // generic ID (do nothing)
{
echo "'>";
}
else {
echo "$YOUTUBE_ID'>";
}
echo " $l_youtube_id<tr><td>";
echo "<input type='submit' value='$l_record'></td></tr>";
?>
</FORM>
</TABLE>
</BODY>
</HTML>