Subversion Repositories ALCASAR

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Rev 1899 | Rev 1954 | Go to most recent revision | Blame | Compare with Previous | Last modification | View Log 

<!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 Whitelist 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 wl_ip_allowed $1\n", $new_list);
        }
        else
        {
                return preg_replace("/(.*)\n/", "add bl_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));
                        $line = split("\n", $tampon);
                        foreach( $line as $x)
                        {
                                if(isset(split('/',$x)[1]))
                                echo split('/',$x)[1]."\n";
                        }
                        fclose($pointeur);
                        }
                }
        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_wl="Liste blanche";
        $l_load="Chargement...";
        $l_list_version="Version de la liste : ";
        $l_specific_filtering="Filtrage special";
        $l_wl_categories="Sélectionnez les catégories à autoriser";
        $l_allowed_dns="Noms de domaine autorisés";
        $l_one_dns="Entrez un nom de domaine par ligne (exemple : .domaine.org)";
        $l_add_to_wl="Noms de domaine ou IP ajoutés à la liste blanche";
        $l_forbidden_ip_explain="Entrez une IP par ligne (exemple : 123.123.123.123)<br/>ou une adresse de réseau (exemple : 123.123.0.0/16)";
        $l_allowed_ip="IP autorisées";
        $l_record="Enregistrer les modifications";
        $l_wait="Une fois validées, 10 secondes sont nécessaires pour traiter vos modifications";
        $l_error_open_file="Erreur d'ouverture du fichier";
        $l_additional_file_title="Fichiers de 'listes blanche' 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 :";
        $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 restreint, suivez les étapes ici pour chaque poste : "; 
        $l_youtube_id="(<a href='https://support.google.com/youtube/answer/174084?hl=fr' target='cat_help' onclick=window.open('https://support.google.com/youtube/answer/174084?hl=fr','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_disable="Désactiver";
        $l_enable="Activer";
        $l_file_state="Etat";
}
else {
        $l_wl="WhiteList";
        $l_load="Loading...";
        $l_list_version="List version : ";
        $l_wl_categories="Select the categories to allow";
        $l_allowed_dns="Allowed domain names";
        $l_one_dns="Enter one domain name per row (example : .domain.org)";
        $l_add_to_wl="Domain names or IP to add to whitelist";
        $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_allowed_ip="Allowed IP";
        $l_record="Save changes";
        $l_wait="Once validated, 10 seconds are necessary to compute your modifications";
        $l_error_open_file="Error opening file";
        $l_additional_file_title="Additional whitelist 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 :";
        $l_ip_filtering="Filtering URLs that contain an IP address instead of a domain name (ie: http://25.56.58.59/index.htm)";
        $l_specific_filtering="Specific filtering";
        $l_safe_youtube="For safe Youtube, follow steps here for each computer "; 
        $l_youtube_id="(<a href='https://support.google.com/youtube/answer/174084?hl=en' target='cat_help' onclick=window.open('https://support.google.com/youtube/answer/174084?hl=en','cat_help','width=800,height=600,toolbar=no,scrollbars=yes,resizable=yes') title='Youtube for school'>link to create a Youtube Id</a>)";
        $l_safe_searching="Enabling school/parental control for the search engines google."; 
        $l_disable="Disable";
        $l_enable="Enable";
        $l_file_state="State";
}
$dir_etc="/usr/local/etc/";
$dir_dg="/etc/dansguardian/lists/";
$file_wl_domains="/usr/local/share/dnsmasq-wl/ossi.conf";
$file_wl_ip="/usr/local/share/iptables-wl-enabled/ossi";
$wl_categories=$dir_etc."alcasar-wl-categories";
$wl_categories_enabled=$dir_etc."alcasar-wl-categories-enabled";
$conf_file=$dir_etc."alcasar.conf";
$tinyproxy_conf="/etc/tinyproxy/tinyproxy.conf";
$dnsmasq_conf="/etc/dnsmasq-whitelist.conf";
$dir_tmp="/tmp/";
$upload_dir_ip = "/usr/local/share/iptables-wl-enabled/";
$upload_dir_domain_names = "/usr/local/share/dnsmasq-wl-enabled/";
$dir_ip = "/usr/local/share/iptables-wl/";
$dir_domain_names = "/usr/local/share/dnsmasq-wl/";
# default values
if (is_file ($conf_file))
        {
        $tab=file($conf_file);
        if ($tab)
                {
                foreach ($tab as $line)
                        {
                        $field=explode("=", $line);
                        if ($field[0] == "DNS1")
                                {
                                        $DNS1=trim($field[1]);
                                }
                        }
                }
        }
else { echo "$l_error_open_file $conf_file";}

if (isset($_POST['choix'])){ $choix=$_POST['choix']; } else { $choix=""; }
switch ($choix)
{
case 'Specific_filtering' :
        $safesearch="-safesearch_off"; ;
        foreach ($_POST as $key => $value)
        {
                if (strstr($key,'chk-safesearch')) $safesearch="-safesearch_on";
        }
        exec ("sudo /usr/local/bin/alcasar-url_filter_wl.sh $safesearch");
        break;
case 'MAJ_cat_wl' :
        if (file_exists($wl_categories_enabled))
                {
                $pointeur=fopen($wl_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 $wl_categories_enabled";}
        $fichier=fopen($file_wl_domains,"w+");
        fputs($fichier, form_filter($_POST['OSSI_wl_domains']));
        fclose($fichier);
        unset($_POST['OSSI_wl_domains']);
        $fichier=fopen($file_wl_ip, "w+");
        fputs($fichier, form_filter_ip($_POST['OSSI_wl_ip'], "white"));
        fclose($fichier);
        unset($_POST['OSSI_wl_ip']);
        exec ("sudo /usr/local/bin/alcasar-bl.sh --reload");
        break;
        case 'MAJ_ip_file_delete' :
        foreach($_POST as $fichier => $value)
        {
                if($fichier != "choix")
                {
                        $action=$_POST[$fichier];
                        if($action == $l_remove) //delete
                        {
                                exec("rm -rf $upload_dir_ip$fichier");
                                exec("rm -rf $upload_dir_domain_names$fichier");
                                exec("rm -rf $dir_ip$fichier");
                                exec("rm -rf $dir_domain_names$fichier");
                                exec ("sudo /usr/local/bin/alcasar-bl.sh --reload");
                        }
                        if($action == $l_disable) //disable
                        {
                                exec("mv -f $upload_dir_ip$fichier $dir_ip$fichier");
                                exec("mv -f $upload_dir_domain_names$fichier $dir_domain_names$fichier");
                                exec("sudo /usr/local/bin/alcasar-bl.sh --reload");
                        }
                        if($action == $l_enable) //enable
                        {
                                exec("mv -f $dir_ip$fichier $upload_dir_ip$fichier");
                                exec("mv -f $dir_domain_names$fichier $upload_dir_domain_names$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 wl_ip_allowed /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/^/server=\//g\" $upload_dir_domain_names\ossi-$nom");
                exec("sed -i \"s/$/\/$DNS1/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_wl; ?></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='wl_filter.php' method=POST>
<input type='hidden' name='choix' value='MAJ_cat_wl'>
<?php
echo "<center>";
$nbDomainNames = exec ("wc -l /usr/local/share/dnsmasq-wl/* | tail -n 1 | awk '{print $1}'");
$nbUrl = 0;
$nbIp = 0;
echo "<b>$l_nbDomainNames</b> $nbDomainNames, <b>$l_nbUrl</b> $nbUrl, <b>$l_nbIp</b> $nbIp<br/>";
echo "$l_wl_categories</center></td></tr>";
//on lit et on interprete le fichier de catégories
$cols=1; 
if (file_exists($wl_categories))
        {
        $pointeur=fopen($wl_categories,"r");
        while (!feof ($pointeur))
                {
                $ligne=fgets($pointeur, 4096);
                if ($ligne)
                        {
                        if ($cols == 1) { echo "<tr>";}
                        $categorie=trim(basename($ligne));
                        echo "<td><a href='bl_categories_help.php?liste=wl&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 $wl_categories";
        }
echo "<tr><td valign='middle' align='left' colspan=10>";
echo "<center><b>$l_add_to_wl</b></center></td></tr>";
echo "<tr><td width=50% colspan=5 align=center>";
echo "<H3>$l_allowed_dns</H3>$l_one_dns<BR>";
echo "<textarea name='OSSI_wl_domains' rows=3 cols=40>";
echo_file ($file_wl_domains);
echo "</textarea></td>";
echo "<td width=50% colspan=5 align=center>";
echo "<H3>$l_allowed_ip</H3>$l_forbidden_ip_explain<BR>";
echo "<textarea name='OSSI_wl_ip' rows=3 cols=40>";
echo_ip_file ($file_wl_ip);
echo "</textarea></td></tr>";
echo "<tr><td colspan=10>";
echo "<input type='submit' onClick=\"this.disabled=true; this.value='$l_load';\" value='$l_record'></form></td></tr>";
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='wl_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>$l_file_state<th>$l_file_remove</tr>";

//liste des fichiers activés
$fichiersIp = array_diff(scandir($upload_dir_ip), array('ossi','ossi-ip-safesearch','..','.'));
$fichiersIp = preg_grep("/^ossi-/",$fichiersIp);
foreach($fichiersIp as $fichier => $value)
{
        echo "<tr><td><center><a href='bl_categories_help.php?liste=wl&cat=$value&ossi=yes&filtre=domain' target='cat_help' onclick=window.open('bl_categories_help','cat_help','width=600,height=450,toolbar=no,scrollbars=yes,resizable=yes') title='categories help page'>".exec("sed 's/^.....//g' <<< $value")."</a></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='$l_disable'></center></td><td><center><input type='submit' name='$value' value='$l_remove'></center></td></tr>";
}
//liste des fichiers desactivés
$fichiersIp = array_diff(scandir($dir_ip), array('ossi','ossi-ip-safesearch','..','.'));
$fichiersIp = preg_grep("/^ossi-/",$fichiersIp);
foreach($fichiersIp as $fichier => $value)
{
        echo "<tr><td bgcolor='BEBEBE'><center><a href='bl_categories_help.php?liste=wl&cat=$value&ossi=yes&filtre=domain&state=disable' target='cat_help' onclick=window.open('bl_categories_help','cat_help','width=600,height=450,toolbar=no,scrollbars=yes,resizable=yes') title='categories help page'>".exec("sed 's/^.....//g' <<< $value")."</a></center></td><td bgcolor='BEBEBE'><center>".exec("wc -l $dir_ip$value | awk '{print $1}'")."</center></td><td bgcolor='BEBEBE'><center>".exec("wc -l $dir_domain_names$value | awk '{print $1}'")."</center></td><td bgcolor='BEBEBE'><center><input type='submit' name='$value' value='$l_enable'></center></td><td bgcolor='BEBEBE'><center><input type='submit' name='$value' value='$l_remove'></center></td></tr>";
}


echo "</table><br/></td></form><form action='wl_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' onClick=\"this.disabled=true; this.value='$l_load';\" value='$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='wl_filter.php' method='POST'>
<input type='hidden' name='choix' value='Specific_filtering'>
<tr><td>

<input type='checkbox' name='chk-safesearch'
<?php
//verification du safesearch
if(file_exists($dnsmasq_conf))
{
        $f=fopen($dnsmasq_conf, 'r');
        while(!feof($f))
        {
                $line=fgets($f,4096);
                if($line && preg_match('/^address=\/\.google/',$line,$r))
                {
                        echo "checked";
                        break;
                }
        }
        fclose($f);
}
else
        echo "$l_error_open_file $dnsmasq_conf";
echo "> $l_safe_searching";

echo "<br></br>$l_safe_youtube";
echo " $l_youtube_id<tr><td>";

echo "<input type='submit' onClick=\"this.disabled=true; this.value='$l_load';\" value='$l_record'></form></td></tr>";
?>

</TABLE><br/>
</BODY>
</HTML>