diff --git a/inc-urls-propres.php3 b/inc-urls-propres.php3
new file mode 100644
index 0000000000000000000000000000000000000000..173fd2a72564348b258c5607bb251f601a23d4d1
--- /dev/null
+++ b/inc-urls-propres.php3
@@ -0,0 +1,168 @@
+<?php
+
+// executer une seule fois
+if (defined("_INC_URLS2")) return;
+define("_INC_URLS2", "1");
+
+
+/*
+
+- Comment utiliser ce jeu d'URLs ?
+
+Il faut recopier le fichier htaccess-propre.txt sous le nom .htaccess
+dans le repertoire de base du site SPIP (attention a ne pas ecraser
+d'autres reglages que vous pourriez avoir mis dans ce fichier)
+
+*/
+
+
+function _generer_url_propre($type, $id_objet) {
+	$table = "spip_".$type."s";
+	$col_id = "id_".$type;
+
+	// D'abord, essayer de recuperer l'URL existante si possible
+	$query = "SELECT url_propre, titre FROM $table WHERE $col_id=$id_objet";
+	$result = spip_query($query);
+	if (!($row = spip_fetch_array($result))) return "";
+	if ($row['url_propre']) return $row['url_propre'];
+
+	// Sinon, creer l'URL
+	include_ecrire("inc_filtres.php3");
+	include_ecrire("inc_charsets.php3");
+	$url = translitteration(corriger_caracteres(supprimer_tags(supprimer_numero($row['titre']))));
+	$url = @preg_replace(',[[:punct:][:space:]]+,u', ' ', $url);
+	// S'il reste des caracteres non latins, utiliser l'id a la place
+	if (preg_match(",[^a-zA-Z0-9 ],", $url)) {
+		$url = $type.$id_objet;
+	}
+	else {
+		$mots = explode(' ', $url);
+		$url = '';
+		foreach ($mots as $mot) {
+			if (!$mot) continue;
+			$url2 = $url.'-'.$mot;
+			if (strlen($url2) > 35) {
+				break;
+			}
+			$url = $url2;
+		}
+		$url = substr($url, 1);
+		//echo "$url<br>";
+		if (strlen($url) < 2) $url = $type.$id_objet;
+	}
+
+	// Verifier les eventuels doublons et mettre a jour
+	$lock = "url $type $id_objet";
+	spip_get_lock($lock, 10);
+	$query = "SELECT $col_id FROM $table WHERE url_propre='".addslashes($url)."'";
+	if (spip_num_rows(spip_query($query)) > 0) {
+		$url = $url.','.$id_objet;
+	}
+	$query = "UPDATE $table SET url_propre='".addslashes($url)."' WHERE $col_id=$id_objet";
+	spip_query($query);
+	spip_release_lock($lock);
+
+	return $url;
+}
+
+function generer_url_article($id_article) {
+	$url = _generer_url_propre('article', $id_article);
+	if (!$url) $url = "article.php3?id_article=$id_article";
+	return $url;
+}
+
+function generer_url_rubrique($id_rubrique) {
+	$url = _generer_url_propre('rubrique', $id_rubrique);
+	if (!$url) $url = "rubrique.php3?id_rubrique=$id_rubrique";
+	else $url = '-'.$url.'-';
+	return $url;
+}
+
+function generer_url_breve($id_breve) {
+	$url = _generer_url_propre('breve', $id_breve);
+	if (!$url) $url = "breve.php3?id_breve=$id_breve";
+	else $url = '+'.$url.'+';
+	return $url;
+}
+
+function generer_url_forum($id_forum) {
+	return "forum.php3?id_forum=$id_forum";
+}
+
+function generer_url_mot($id_mot) {
+	$url = _generer_url_propre('mot', $id_mot);
+	if (!$url) $url = "mot.php3?id_mot=$id_mot";
+	else $url = '+-'.$url.'-+';
+	return $url;
+}
+
+function generer_url_auteur($id_auteur) {
+	return "auteur.php3?id_auteur=$id_auteur";
+}
+
+function generer_url_document($id_document) {
+	if ($id_document > 0) {
+		$query = "SELECT fichier FROM spip_documents WHERE id_document = $id_document";
+		$result = spip_query($query);
+		if ($row = spip_fetch_array($result)) {
+			$url = $row['fichier'];
+		}
+	}
+	return $url;
+}
+
+function recuperer_parametres_url($fond, $url) {
+	global $contexte;
+
+	// Migration depuis anciennes URLs ?
+	if ($GLOBALS['HTTP_SERVER_VARS']['REQUEST_METHOD'] != 'POST' &&
+		preg_match(',(^|/)(article|breve|rubrique|mot)\.php3?([\?&].*)?$,', $url, $regs)) {
+		$type = $regs[2];
+		$id_objet = intval($GLOBALS['id_'.$type]);
+		if ($id_objet) {
+			$func = "generer_url_$type";
+			$url_propre = $func($id_objet);
+			if ($url_propre) {
+				http_status(301);
+				Header("Location: $url_propre");
+				exit;
+			}
+		}
+		return;
+	}
+
+	$url_propre = $GLOBALS['HTTP_SERVER_VARS']['REDIRECT_url_propre'];
+	if (!$url_propre) $url_propre = $GLOBALS['HTTP_ENV_VARS']['url_propre'];
+	if (!$url_propre) $url_propre = substr($url, strrpos($url, '/') + 1);
+	if (!$url_propre) return;
+
+	// Detecter les differents types d'objets demandes
+	if (preg_match(',^\+-(.*)-\+$,', $url_propre, $regs)) {
+		$type = 'mot';
+		$url_propre = $regs[1];
+	}
+	else if (preg_match(',^-(.*)-$,', $url_propre, $regs)) {
+		$type = 'rubrique';
+		$url_propre = $regs[1];
+	}
+	else if (preg_match(',^\+(.*)\+$,', $url_propre, $regs)) {
+		$type = 'breve';
+		$url_propre = $regs[1];
+	}
+	else {
+		$type = 'article';
+	}
+
+	$table = "spip_".$type."s";
+	$col_id = "id_".$type;
+	$query = "SELECT $col_id FROM $table WHERE url_propre='".addslashes($url_propre)."'";
+	$result = spip_query($query);
+	if (spip_num_rows($result) == 1) {
+		$row = spip_fetch_array($result);
+		$contexte[$col_id] = $row[$col_id];
+	}
+
+	return;
+}
+
+?>
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