[SPIP][PLUGINS] v3.0-->v3.2
[lhc/web/www.git] / www / plugins-dist / sites / inc / syndic.php
index 86e100d..fb6cec7 100644 (file)
  *  Pour plus de details voir le fichier COPYING.txt ou l'aide en ligne.   *
 \***************************************************************************/
 
-if (!defined("_ECRIRE_INC_VERSION")) return;
+/**
+ * Gestion de syndication (RSS,...)
+ *
+ * @package SPIP\Sites\Syndication
+ **/
+
+if (!defined("_ECRIRE_INC_VERSION")) {
+       return;
+}
 
 // ATTENTION
 // Cette inclusion charge executer_une_syndication pour compatibilite,
@@ -19,16 +27,27 @@ if (!defined("_ECRIRE_INC_VERSION")) return;
 // Voir un exemple dans action/editer/site
 include_spip('genie/syndic');
 
-// prend un fichier backend et retourne un tableau des items lus,
-// et une chaine en cas d'erreur
-// https://code.spip.net/@analyser_backend
-function analyser_backend($rss, $url_syndic='') {
+
+/**
+ * Analyse un texte de backend
+ *
+ * @param string $rss
+ *     Texte du fichier de backend
+ * @param string $url_syndic
+ *     URL du site d'où à été extrait le texte
+ * @return array|string
+ *     - array : tableau des items lus,
+ *     - string : texte d'erreur
+ **/
+function analyser_backend($rss, $url_syndic = '') {
        include_spip('inc/texte'); # pour couper()
 
        $rss = pipeline('pre_syndication', $rss);
 
-       // si true, les URLs de type feedburner sont dereferencees
-       define('_SYNDICATION_DEREFERENCER_URL', false);
+       if (!defined('_SYNDICATION_DEREFERENCER_URL')) {
+               /** si true, les URLs de type feedburner sont déréférencées */
+               define('_SYNDICATION_DEREFERENCER_URL', false);
+       }
 
        // Echapper les CDATA
        cdata_echappe($rss, $echappe_cdata);
@@ -42,26 +61,32 @@ function analyser_backend($rss, $url_syndic='') {
        // chercher auteur/lang dans le fil au cas ou les items n'en auraient pas
        list($header) = preg_split(',<(item|entry)\b,', $rss, 2);
        if (preg_match_all(
-       ',<(author|creator)\b(.*)</\1>,Uims',
-       $header, $regs, PREG_SET_ORDER)) {
+               ',<(author|creator)\b(.*)</\1>,Uims',
+               $header, $regs, PREG_SET_ORDER)) {
                $les_auteurs_du_site = array();
                foreach ($regs as $reg) {
                        $nom = $reg[2];
-                       if (preg_match(',<name>(.*)</name>,Uims', $nom, $reg))
+                       if (preg_match(',<name>(.*)</name>,Uims', $nom, $reg)) {
                                $nom = $reg[1];
+                       }
                        $les_auteurs_du_site[] = trim(textebrut(filtrer_entites($nom)));
                }
                $les_auteurs_du_site = join(', ', array_unique($les_auteurs_du_site));
-       } else
+       } else {
                $les_auteurs_du_site = '';
-       if ((preg_match(',<([^>]*xml:)?lang(uage)?'.'>([^<>]+)<,i',
-       $header, $match) AND $l = $match[3])
-       OR ($l = extraire_attribut(extraire_balise($header, 'feed'), 'xml:lang'))
-       )
+       }
+
+       $langue_du_site = '';
+
+       if ((preg_match(',<([^>]*xml:)?lang(uage)?' . '>([^<>]+)<,i',
+                               $header, $match) and $l = $match[3])
+               or ($l = extraire_attribut(extraire_balise($header, 'feed'), 'xml:lang'))
+       ) {
                $langue_du_site = $l;
-       // atom
-       elseif (preg_match(',<feed\s[^>]*xml:lang=[\'"]([^<>\'"]+)[\'"],i', $header, $match))
+       // atom
+       elseif (preg_match(',<feed\s[^>]*xml:lang=[\'"]([^<>\'"]+)[\'"],i', $header, $match)) {
                $langue_du_site = $match[1];
+       }
 
        // Recuperer les blocs item et entry
        $items = array_merge(extraire_balises($rss, 'item'), extraire_balises($rss, 'entry'));
@@ -71,7 +96,9 @@ function analyser_backend($rss, $url_syndic='') {
        // Analyser chaque <item>...</item> du backend et le transformer en tableau
        //
 
-       if (!count($items)) return _T('sites:avis_echec_syndication_01');
+       if (!count($items)) {
+               return _T('sites:avis_echec_syndication_01');
+       }
 
        if (!defined('_SYNDICATION_MAX_ITEMS')) define('_SYNDICATION_MAX_ITEMS',1000);
        $nb_items = 0;
@@ -87,64 +114,86 @@ function analyser_backend($rss, $url_syndic='') {
                // attention la valeur par defaut est 'true' ce qui oblige a quelque
                // gymnastique
                if (preg_match(',<guid.*>[[:space:]]*(https?:[^<]*)</guid>,Uims',
-               $item, $regs) AND preg_match(',^(true|1)?$,i',
-               extraire_attribut($regs[0], 'ispermalink')))
-                       $data['url'] = $regs[1];
-               // contourner les redirections feedburner
-               else if (_SYNDICATION_DEREFERENCER_URL
-               AND preg_match(',<feedburner:origLink>(.*)<,Uims',
-               $item, $regs))
-                       $data['url'] = $regs[1];
-               // <link>, plus classique
-               else if (preg_match(
-               ',<link[^>]*[[:space:]]rel=["\']?alternate[^>]*>(.*)</link>,Uims',
-               $item, $regs))
-                       $data['url'] = $regs[1];
-               else if (preg_match(',<link[^>]*[[:space:]]rel=.alternate[^>]*>,Uims',
-               $item, $regs))
-                       $data['url'] = extraire_attribut($regs[0], 'href');
-               else if (preg_match(',<link[^>]*>\s*([^\s]+)\s*</link>,Uims', $item, $regs))
+                               $item, $regs) and preg_match(',^(true|1)?$,i',
+                               extraire_attribut($regs[0], 'ispermalink'))
+               ) {
                        $data['url'] = $regs[1];
-               else if (preg_match(',<link[^>]*>,Uims', $item, $regs))
-                       $data['url'] = extraire_attribut($regs[0], 'href');
-
-               // Aucun link ni guid, mais une enclosure
-               else if (preg_match(',<enclosure[^>]*>,ims', $item, $regs)
-               AND $url = extraire_attribut($regs[0], 'url'))
-                       $data['url'] = $url;
-
-               // pas d'url, c'est genre un compteur...
-               else
-                       $data['url'] = '';
+               } // contourner les redirections feedburner
+               else {
+                       if (_SYNDICATION_DEREFERENCER_URL
+                               and preg_match(',<feedburner:origLink>(.*)<,Uims',
+                                       $item, $regs)
+                       ) {
+                               $data['url'] = $regs[1];
+                       } // <link>, plus classique
+                       else {
+                               if (preg_match(
+                                       ',<link[^>]*[[:space:]]rel=["\']?alternate[^>]*>(.*)</link>,Uims',
+                                       $item, $regs)) {
+                                       $data['url'] = $regs[1];
+                               } else {
+                                       if (preg_match(',<link[^>]*[[:space:]]rel=.alternate[^>]*>,Uims',
+                                               $item, $regs)) {
+                                               $data['url'] = extraire_attribut($regs[0], 'href');
+                                       } else {
+                                               if (preg_match(',<link[^>]*>\s*([^\s]+)\s*</link>,Uims', $item, $regs)) {
+                                                       $data['url'] = $regs[1];
+                                               } else {
+                                                       if (preg_match(',<link[^>]*>,Uims', $item, $regs)) {
+                                                               $data['url'] = extraire_attribut($regs[0], 'href');
+                                                       } // Aucun link ni guid, mais une enclosure
+                                                       else {
+                                                               if (preg_match(',<enclosure[^>]*>,ims', $item, $regs)
+                                                                       and $url = extraire_attribut($regs[0], 'url')
+                                                               ) {
+                                                                       $data['url'] = $url;
+                                                               } // pas d'url, c'est genre un compteur...
+                                                               else {
+                                                                       $data['url'] = '';
+                                                               }
+                                                       }
+                                               }
+                                       }
+                               }
+                       }
+               }
 
                // Titre (semi-obligatoire)
-               if (preg_match(",<title[^>]*>(.*?)</title>,ims",$item,$match))
+               if (preg_match(",<title[^>]*>(.*?)</title>,ims", $item, $match)) {
                        $data['titre'] = $match[1];
-               else if (preg_match(',<link[[:space:]][^>]*>,Uims',$item,$mat)
-               AND $title = extraire_attribut($mat[0], 'title'))
-                       $data['titre'] = $title; 
-               if (!strlen($data['titre'] = trim($data['titre'])))
+               } else {
+                       if (preg_match(',<link[[:space:]][^>]*>,Uims', $item, $mat)
+                               and $title = extraire_attribut($mat[0], 'title')
+                       ) {
+                               $data['titre'] = $title;
+                       }
+               }
+               if (!strlen($data['titre'] = trim($data['titre']))) {
                        $data['titre'] = _T('ecrire:info_sans_titre');
+               }
 
                // Date
                $la_date = '';
                if (preg_match(',<(published|modified|issued)>([^<]*)<,Uims',
-               $item,$match)) {
+                       $item, $match)) {
                        cdata_echappe_retour($match[2], $echappe_cdata);
                        $la_date = my_strtotime($match[2], $langue_du_site);
                }
-               if (!$la_date AND
-               preg_match(',<(pubdate)>([^<]*)<,Uims',$item, $match)) {
+               if (!$la_date and
+                       preg_match(',<(pubdate)>([^<]*)<,Uims', $item, $match)
+               ) {
                        cdata_echappe_retour($match[2], $echappe_cdata);
                        $la_date = my_strtotime($match[2], $langue_du_site);
                }
-               if (!$la_date AND
-               preg_match(',<([a-z]+:date)>([^<]*)<,Uims',$item,$match)) {
+               if (!$la_date and
+                       preg_match(',<([a-z]+:date)>([^<]*)<,Uims', $item, $match)
+               ) {
                        cdata_echappe_retour($match[2], $echappe_cdata);
                        $la_date = my_strtotime($match[2], $langue_du_site);
                }
-               if (!$la_date AND
-               preg_match(',<date>([^<]*)<,Uims',$item,$match)) {
+               if (!$la_date and
+                       preg_match(',<date>([^<]*)<,Uims', $item, $match)
+               ) {
                        cdata_echappe_retour($match[1], $echappe_cdata);
                        $la_date = my_strtotime($match[1], $langue_du_site);
                }
@@ -155,64 +204,74 @@ function analyser_backend($rss, $url_syndic='') {
                // plus lourd que vraiment utile)
                if ($GLOBALS['controler_dates_rss']) {
                        if (!$la_date
-                               OR $la_date > time() + 48 * 3600)
+                               or $la_date > time() + 48 * 3600
+                       ) {
                                $la_date = time();
+                       }
                }
 
-               if ($la_date)
+               if ($la_date) {
                        $data['date'] = $la_date;
+               }
 
                // Honorer le <lastbuilddate> en forcant la date
                if (preg_match(',<(lastbuilddate|updated|modified)>([^<>]+)</\1>,i',
-               $item, $regs)
-               AND $lastbuilddate = my_strtotime(trim($regs[2]), $langue_du_site)
-               // pas dans le futur
-               AND $lastbuilddate < time())
+                               $item, $regs)
+                       and $lastbuilddate = my_strtotime(trim($regs[2]), $langue_du_site)
+                       // pas dans le futur
+                       and $lastbuilddate < time()
+               ) {
                        $data['lastbuilddate'] = $lastbuilddate;
+               }
 
                // Auteur(s)
                if (preg_match_all(
-               ',<(author|creator)\b[^>]*>(.*)</\1>,Uims',
-               $item, $regs, PREG_SET_ORDER)) {
+                       ',<(author|creator)\b[^>]*>(.*)</\1>,Uims',
+                       $item, $regs, PREG_SET_ORDER)) {
                        $auteurs = array();
                        foreach ($regs as $reg) {
                                $nom = $reg[2];
-                               if (preg_match(',<name\b[^>]*>(.*)</name>,Uims', $nom, $reg))
+                               if (preg_match(',<name\b[^>]*>(.*)</name>,Uims', $nom, $reg)) {
                                        $nom = $reg[1];
+                               }
                                // Cas particulier d'un auteur Flickr
-                               if (preg_match(',nobody@flickr.com \((.*)\),Uims', $nom, $reg))
+                               if (preg_match(',nobody@flickr.com \((.*)\),Uims', $nom, $reg)) {
                                        $nom = $reg[1];
+                               }
                                $auteurs[] = trim(textebrut(filtrer_entites($nom)));
                        }
                        $data['lesauteurs'] = join(', ', array_unique($auteurs));
-               }
-               else
+               } else {
                        $data['lesauteurs'] = $les_auteurs_du_site;
+               }
 
                // Description
                if (preg_match(',<(description|summary)\b.*'
-               .'>(.*)</\1\b,Uims',$item,$match)) {
+                       . '>(.*)</\1\b,Uims', $item, $match)) {
                        $data['descriptif'] = trim($match[2]);
                }
                if (preg_match(',<(content)\b.*'
-               .'>(.*)</\1\b,Uims',$item,$match)) {
+                       . '>(.*)</\1\b,Uims', $item, $match)) {
                        $data['content'] = trim($match[2]);
                }
 
                // lang
-               if (preg_match(',<([^>]*xml:)?lang(uage)?'.'>([^<>]+)<,i',
-                       $item, $match))
+               if (preg_match(',<([^>]*xml:)?lang(uage)?' . '>([^<>]+)<,i',
+                       $item, $match)) {
                        $data['lang'] = trim($match[3]);
-               else if ($lang = trim(extraire_attribut($item, 'xml:lang')))
-                       $data['lang'] = $lang;
-               else
-                       $data['lang'] = trim($langue_du_site);
+               } else {
+                       if ($lang = trim(extraire_attribut($item, 'xml:lang'))) {
+                               $data['lang'] = $lang;
+                       } else {
+                               $data['lang'] = trim($langue_du_site);
+                       }
+               }
 
                // source et url_source  (pas trouve d'exemple en ligne !!)
                # <source url="http://www.truc.net/music/uatsap.mp3" length="19917" />
                # <source url="http://www.truc.net/rss">Site source</source>
                if (preg_match(',(<source[^>]*>)(([^<>]+)</source>)?,i',
-               $item, $match)) {
+                       $item, $match)) {
                        $data['source'] = trim($match[3]);
                        $data['url_source'] = str_replace('&amp;', '&',
                                trim(extraire_attribut($match[1], 'url')));
@@ -226,15 +285,17 @@ function analyser_backend($rss, $url_syndic='') {
                # http://microformats.org/wiki/rel-directory-fr
                $tags = array();
                if (preg_match_all(
-               ',<(([a-z]+:)?(subject|category|directory|keywords?|tags?|type))[^>]*>'
-               .'(.*?)</\1>,ims',
-               $item, $matches, PREG_SET_ORDER))
-                       $tags = ajouter_tags($matches, $item); # array()
+                       ',<(([a-z]+:)?(subject|category|directory|keywords?|tags?|type))[^>]*>'
+                       . '(.*?)</\1>,ims',
+                       $item, $matches, PREG_SET_ORDER)) {
+                       $tags = ajouter_tags($matches, $item);
+               } # array()
                elseif (preg_match_all(
-               ',<(([a-z]+:)?(subject|category|directory|keywords?|tags?|type))[^>]*/>'
-               .',ims',
-               $item, $matches, PREG_SET_ORDER))
-                       $tags = ajouter_tags($matches, $item); # array()
+                       ',<(([a-z]+:)?(subject|category|directory|keywords?|tags?|type))[^>]*/>'
+                       . ',ims',
+                       $item, $matches, PREG_SET_ORDER)) {
+                       $tags = ajouter_tags($matches, $item);
+               } # array()
                // Pieces jointes :
                // chercher <enclosure> au format RSS et les passer en microformat
                // ou des microformats relEnclosure,
@@ -245,17 +306,17 @@ function analyser_backend($rss, $url_syndic='') {
                        # rss 2
                        if (preg_match_all(',<enclosure[[:space:]][^<>]+>,i',
                                $item, $matches, PREG_PATTERN_ORDER)) {
-                                       $enclosures += array_map('enclosure2microformat', $matches[0]);
+                               $enclosures += array_map('enclosure2microformat', $matches[0]);
                        }
                        # atom
-                       if (preg_match_all(',<link\b[^<>]+rel=["\']?enclosure["\']?[^<>]+>,i', 
+                       if (preg_match_all(',<link\b[^<>]+rel=["\']?enclosure["\']?[^<>]+>,i',
                                $item, $matches, PREG_PATTERN_ORDER)) {
-                                       $enclosures += array_map('enclosure2microformat', $matches[0]);
+                               $enclosures += array_map('enclosure2microformat', $matches[0]);
                        }
                        # media rss
-                       if (preg_match_all(',<media:content\b[^<>]+>,i', 
+                       if (preg_match_all(',<media:content\b[^<>]+>,i',
                                $item, $matches, PREG_PATTERN_ORDER)) {
-                                       $enclosures += array_map('enclosure2microformat', $matches[0]);
+                               $enclosures += array_map('enclosure2microformat', $matches[0]);
                        }
                        $data['enclosures'] = join(', ', array_unique($enclosures));
                        unset($enclosures);
@@ -270,14 +331,18 @@ function analyser_backend($rss, $url_syndic='') {
                $data['url'] = url_absolue(filtrer_entites($data['url']), $url_syndic);
 
                // si on demande un dereferencement de l'URL, il faut verifier que ce n'est pas une redirection
-               if (_SYNDICATION_DEREFERENCER_URL){
+               if (_SYNDICATION_DEREFERENCER_URL) {
                        $target = $data['url'];
                        include_spip("inc/distant");
-                       for ($i = 0; $i<10; $i++){
+                       for ($i = 0; $i < 10; $i++) {
                                // on fait un GET et pas un HEAD car les vieux SPIP ne repondent pas la redirection avec un HEAD (honte) sur un article virtuel
                                $res = recuperer_lapage($target, false, "GET", 4096);
-                               if (!$res) break; // c'est pas bon signe car on a pas trouve l'URL...
-                               if (is_array($res))     break; // on a trouve la page, donc on a l'URL finale
+                               if (!$res) {
+                                       break;
+                               } // c'est pas bon signe car on a pas trouve l'URL...
+                               if (is_array($res)) {
+                                       break;
+                               } // on a trouve la page, donc on a l'URL finale
                                $target = $res; // c'est une redirection, on la suit pour voir ou elle mene
                        }
                        // ici $target est l'URL finale de la page
@@ -286,16 +351,17 @@ function analyser_backend($rss, $url_syndic='') {
 
                // Trouver les microformats (ecrase les <category> et <dc:subject>)
                if (preg_match_all(
-               ',<a[[:space:]]([^>]+[[:space:]])?rel=[^>]+>.*</a>,Uims',
-               $data['item'], $regs, PREG_PATTERN_ORDER)) {
+                       ',<a[[:space:]]([^>]+[[:space:]])?rel=[^>]+>.*</a>,Uims',
+                       $data['item'], $regs, PREG_PATTERN_ORDER)) {
                        $tags = $regs[0];
                }
                // Cas particulier : tags Connotea sous la forme <a class="postedtag">
                if (preg_match_all(
-               ',<a[[:space:]][^>]+ class="postedtag"[^>]*>.*</a>,Uims',
-               $data['item'], $regs, PREG_PATTERN_ORDER))
+                       ',<a[[:space:]][^>]+ class="postedtag"[^>]*>.*</a>,Uims',
+                       $data['item'], $regs, PREG_PATTERN_ORDER)) {
                        $tags = preg_replace(', class="postedtag",i',
-                       ' rel="tag"', $regs[0]);
+                               ' rel="tag"', $regs[0]);
+               }
 
                $data['tags'] = $tags;
                // enlever le html des titre pour etre homogene avec les autres objets spip
@@ -308,82 +374,106 @@ function analyser_backend($rss, $url_syndic='') {
 }
 
 
-// helas strtotime ne reconnait pas le format W3C
-// http://www.w3.org/TR/NOTE-datetime
-// https://code.spip.net/@my_strtotime
-function my_strtotime($la_date, $lang=null) {
+/**
+ * Strtotime même avec le format W3C !
+ *
+ * Car hélàs, strtotime ne le reconnait pas tout seul !
+ *
+ * @link http://www.w3.org/TR/NOTE-datetime Format datetime du W3C
+ *
+ * @param string $la_date
+ *     Date à parser
+ * @return int
+ *     Timestamp
+ **/
+function my_strtotime($la_date, $lang = null) {
        // format complet
        if (preg_match(
-       ',^(\d+-\d+-\d+[T ]\d+:\d+(:\d+)?)(\.\d+)?'
-       .'(Z|([-+]\d{2}):\d+)?$,',
-       $la_date, $match)) {
-               $la_date = str_replace("T", " ", $match[1])." GMT";
+               ',^(\d+-\d+-\d+[T ]\d+:\d+(:\d+)?)(\.\d+)?'
+               . '(Z|([-+]\d{2}):\d+)?$,',
+               $la_date, $match)) {
+               $match = array_pad($match, 6, null);
+               $la_date = str_replace("T", " ", $match[1]) . " GMT";
+
                return strtotime($la_date) - intval($match[5]) * 3600;
        }
 
        // YYYY
-       if (preg_match(',^\d{4}$,', $la_date, $match))
-               return strtotime($match[0]."-01-01");
+       if (preg_match(',^\d{4}$,', $la_date, $match)) {
+               return strtotime($match[0] . "-01-01");
+       }
 
        // YYYY-MM
-       if (preg_match(',^\d{4}-\d{2}$,', $la_date, $match))
-               return strtotime($match[0]."-01");
+       if (preg_match(',^\d{4}-\d{2}$,', $la_date, $match)) {
+               return strtotime($match[0] . "-01");
+       }
 
        // YYYY-MM-DD hh:mm:ss
-       if (preg_match(',^\d{4}-\d{2}-\d{2}\s+\d{2}:\d{2}:\d{2}\b,', $la_date, $match))
+       if (preg_match(',^\d{4}-\d{2}-\d{2}\s+\d{2}:\d{2}:\d{2}\b,', $la_date, $match)) {
                return strtotime($match[0]);
+       }
 
        // utiliser strtotime en dernier ressort
        // en nettoyant le jour qui prefixe parfois la date, suivi d'une virgule
        // et les UT qui sont en fait des UTC
-       $la_date_c = preg_replace("/^\w+,\s*/ms","",$la_date);
-       $la_date_c = preg_replace("/UT\s*$/ms","UTC",$la_date_c);
-       if ($s=strtotime($la_date)
-         OR $s=strtotime($la_date_c))
+       $la_date_c = preg_replace("/^\w+,\s*/ms", "", $la_date);
+       $la_date_c = preg_replace("/UT\s*$/ms", "UTC", $la_date_c);
+       if ($s = strtotime($la_date)
+               or $s = strtotime($la_date_c)
+       ) {
                return $s;
+       }
 
        // essayons de voir si le nom du mois est dans la langue du flux et remplacons le
        // par la version anglaise avant de faire strtotime
-       if ($lang){
+       if ($lang) {
                // "fr-fr"
                list($lang) = explode("-", $lang);
                static $months = null;
-               if (!isset($months[$lang])){
+               if (!isset($months[$lang])) {
                        $prev_lang = $GLOBALS['spip_lang'];
                        changer_langue($lang);
-                       foreach(range(1,12) as $m){
+                       foreach (range(1, 12) as $m) {
                                $s = _T("date_mois_$m");
-                               $months[$lang][$s] = date("M",strtotime("2013-$m-01"));
-                               $s = _T("date_mois_".$m."_abbr");
-                               $months[$lang][$s] = date("M",strtotime("2013-$m-01"));
-                               $months[$lang][trim($s,".")] = date("M",strtotime("2013-$m-01"));
+                               $months[$lang][$s] = date("M", strtotime("2013-$m-01"));
+                               $s = _T("date_mois_" . $m . "_abbr");
+                               $months[$lang][$s] = date("M", strtotime("2013-$m-01"));
+                               $months[$lang][trim($s, ".")] = date("M", strtotime("2013-$m-01"));
                        }
                        changer_langue($prev_lang);
                }
-               spip_log($la_date_c,"dbgs");
-               foreach($months[$lang] as $loc=>$en){
-                       if (stripos($la_date_c,$loc)!==false){
-                               $s=str_ireplace($loc,$en,$la_date_c);
-                               if ($s=strtotime($s))
+               spip_log($la_date_c, "dbgs");
+               foreach ($months[$lang] as $loc => $en) {
+                       if (stripos($la_date_c, $loc) !== false) {
+                               $s = str_ireplace($loc, $en, $la_date_c);
+                               if ($s = strtotime($s)) {
                                        return $s;
+                               }
                        }
                }
        }
 
        // erreur
        spip_log("Impossible de lire le format de date '$la_date'");
+
        return false;
 }
+
 // A partir d'un <dc:subject> ou autre essayer de recuperer
 // le mot et son url ; on cree <a href="url" rel="tag">mot</a>
 // https://code.spip.net/@creer_tag
-function creer_tag($mot,$type,$url) {
-       if (!strlen($mot = trim($mot))) return '';
+function creer_tag($mot, $type, $url) {
+       if (!strlen($mot = trim($mot))) {
+               return '';
+       }
        $mot = "<a rel=\"tag\">$mot</a>";
-       if ($url)
+       if ($url) {
                $mot = inserer_attribut($mot, 'href', $url);
-       if ($type)
+       }
+       if ($type) {
                $mot = inserer_attribut($mot, 'rel', $type);
+       }
+
        return $mot;
 }
 
@@ -393,58 +483,70 @@ function ajouter_tags($matches, $item) {
        include_spip('inc/filtres');
        $tags = array();
        foreach ($matches as $match) {
-               $type = ($match[3] == 'category' OR $match[3] == 'directory')
-                       ? 'directory':'tag';
+               $type = ($match[3] == 'category' or $match[3] == 'directory')
+                       ? 'directory' : 'tag';
                $mot = supprimer_tags($match[0]);
                if (!strlen($mot)
-               AND !strlen($mot = extraire_attribut($match[0], 'label')))
+                       and !strlen($mot = extraire_attribut($match[0], 'label'))
+               ) {
                        break;
+               }
                // rechercher un url
                if ($url = extraire_attribut($match[0], 'domain')) {
                        // category@domain est la racine d'une url qui se prolonge
                        // avec le contenu text du tag <category> ; mais dans SPIP < 2.0
                        // on donnait category@domain = #URL_RUBRIQUE, et
                        // text = #TITRE_RUBRIQUE ; d'ou l'heuristique suivante sur le slash
-                       if (substr($url, -1) == '/')
+                       if (substr($url, -1) == '/') {
                                $url .= rawurlencode($mot);
-               }
-               else if ($url = extraire_attribut($match[0], 'resource')
-               OR $url = extraire_attribut($match[0], 'url')
-               )
-                       {}
-
-               ## cas particuliers
-               else if (extraire_attribut($match[0], 'scheme') == 'urn:flickr:tags') {
-                       foreach(explode(' ', $mot) as $petit)
-                               if ($t = creer_tag($petit, $type,
-                               'http://www.flickr.com/photos/tags/'.rawurlencode($petit).'/'))
-                                       $tags[] = $t;
-                       $mot = '';
-               }
-               else if (
-                       // cas atom1, a faire apres flickr
-                       $term = extraire_attribut($match[0], 'term')
-               ) {
-                       if ($scheme = extraire_attribut($match[0], 'scheme'))
-                               $url = suivre_lien($scheme,$term);
-                       else
-                               $url = $term;
-               }
-               else {
-                       # type delicious.com
-                       foreach(explode(' ', $mot) as $petit)
-                               if (preg_match(',<rdf\b[^>]*\bresource=["\']([^>]*/'
-                               .preg_quote(rawurlencode($petit),',').')["\'],i',
-                               $item, $m)) {
+                       }
+               } else {
+                       if ($url = extraire_attribut($match[0], 'resource')
+                               or $url = extraire_attribut($match[0], 'url')
+                       ) {
+                       } ## cas particuliers
+                       else {
+                               if (extraire_attribut($match[0], 'scheme') == 'urn:flickr:tags') {
+                                       foreach (explode(' ', $mot) as $petit) {
+                                               if ($t = creer_tag($petit, $type,
+                                                       'http://www.flickr.com/photos/tags/' . rawurlencode($petit) . '/')
+                                               ) {
+                                                       $tags[] = $t;
+                                               }
+                                       }
                                        $mot = '';
-                                       if ($t = creer_tag($petit, $type, $m[1]))
-                                               $tags[] = $t;
+                               } else {
+                                       if (
+                                               // cas atom1, a faire apres flickr
+                                       $term = extraire_attribut($match[0], 'term')
+                                       ) {
+                                               if ($scheme = extraire_attribut($match[0], 'scheme')) {
+                                                       $url = suivre_lien($scheme, $term);
+                                               } else {
+                                                       $url = $term;
+                                               }
+                                       } else {
+                                               # type delicious.com
+                                               foreach (explode(' ', $mot) as $petit) {
+                                                       if (preg_match(',<rdf\b[^>]*\bresource=["\']([^>]*/'
+                                                               . preg_quote(rawurlencode($petit), ',') . ')["\'],i',
+                                                               $item, $m)) {
+                                                               $mot = '';
+                                                               if ($t = creer_tag($petit, $type, $m[1])) {
+                                                                       $tags[] = $t;
+                                                               }
+                                                       }
+                                               }
+                                       }
                                }
+                       }
                }
 
-               if ($t = creer_tag($mot, $type, $url))
+               if ($t = creer_tag($mot, $type, $url)) {
                        $tags[] = $t;
+               }
        }
+
        return $tags;
 }
 
@@ -454,7 +556,7 @@ function ajouter_tags($matches, $item) {
 function cdata_echappe(&$rss, &$echappe_cdata) {
        $echappe_cdata = array();
        if (preg_match_all(',<!\[CDATA\[(.*)]]>,Uims', $rss,
-       $regs, PREG_SET_ORDER)) {
+               $regs, PREG_SET_ORDER)) {
                foreach ($regs as $n => $reg) {
                        if (strpos($reg[1],'<')!==false
                          or strpos($reg[1],'>')!==false) {
@@ -464,8 +566,9 @@ function cdata_echappe(&$rss, &$echappe_cdata) {
                                        $echappe_cdata["@@@SPIP_CDATA$n@@@"] = $reg[1];
                                        $rss = str_replace($reg[0], "@@@SPIP_CDATA$n@@@", $rss);
                                }
-                       } else
+                       } else {
                                $rss = str_replace($reg[0], $reg[1], $rss);
+                       }
                }
        }
 }
@@ -480,11 +583,11 @@ function cdata_echappe_retour(&$x, &$echappe_cdata) {
                if (strpos($x, '@@@SPIP_CDATA') !== false){
                        $x = str_replace( array_keys($echappe_cdata), array_values($echappe_cdata), $x);
                }
-       }
-
-       else if (is_array($x)) {
-               foreach($x as $k => &$v)
-                       cdata_echappe_retour($v, $echappe_cdata);
+       } else {
+               if (is_array($x)) {
+                       foreach ($x as $k => &$v) {
+                               cdata_echappe_retour($v, $echappe_cdata);
+                       }
+               }
        }
 }
-?>