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<?php
/**
* BouncingOrange SPIP SEO plugin
*
* @category SEO
* @package SPIP\SEO\Fonctions
* @author Pierre ROUSSET (p.rousset@gmail.com)
* @copyright Copyright (c) 2009 BouncingOrange (http://www.bouncingorange.com)
* @license http://opensource.org/licenses/gpl-2.0.php General Public License (GPL 2.0)
*/
if (!defined('_ECRIRE_INC_VERSION')) {
return;
}
include_spip('inc/texte');
function seo_interprete_contexte($contexte) {
static $infos;
$s = serialize($contexte);
if (isset($infos[$s])) {
return $infos[$s];
}
$infos[$s] = array('objet' => 'sommaire');
if (isset($contexte['page'])) {
$infos[$s] = array('objet' => $contexte['page']);
}
if (isset($contexte['type-page'])) {
$infos[$s]['objet'] = $contexte['type-page'];
if ($infos[$s]['objet']!=='sommaire'
and $primary = id_table_objet($infos[$s]['objet'])
and isset($contexte[$primary])) {
$infos[$s]['id_objet'] = $contexte[$primary];
$infos[$s]['primary'] = $primary;
$infos[$s]['table_sql'] = table_objet_sql($infos[$s]['objet']);
}
return $infos[$s];
}
// d'abord les rubriques
if (isset($contexte['id_rubrique'])) {
$infos[$s] = array(
'objet'=>'rubrique',
'id_objet'=>$contexte['id_rubrique'],
'primary'=>'id_rubrique',
'table_sql'=>'spip_rubriques'
);
}
// puis voyons si on trouve un objet plus precis
$tables = lister_tables_objets_sql();
foreach ($tables as $t => $d) {
if ($t!=='spip_rubriques'
and isset($d['key']['PRIMARY KEY'])
and ($infos[$s]['objet']!=='rubrique'
or isset($d['field']['id_rubrique']))
) {
$primary = $d['key']['PRIMARY KEY'];
if (isset($contexte[$primary])) {
$infos[$s]['objet'] = $d['type'];
$infos[$s]['id_objet'] = $contexte[$primary];
$infos[$s]['primary'] = $primary;
$infos[$s]['table_sql'] = $t;
return $infos[$s];
}
}
}
return $infos[$s];
}
/**
* Remplace les meta du head par celles calculees par le plugin
* utilise par le squelette inclure/seo-head
*
* @param string $head
* @param array $contexte
* @return string
*/
function seo_insere_remplace_metas($head, $contexte) {
$append = '<!--seo_insere-->';
// on ne fait rien si deja insere
if (strpos($head, $append) !== false) {
return $head;
}
include_spip('inc/config');
$config = lire_config('seo/');
$i = seo_interprete_contexte($contexte);
$is_sommaire = ($i['objet']=='sommaire');
if (isset($config['meta_tags']['activate']) and $config['meta_tags']['activate']=='yes') {
/* d'abord les meta tags */
$meta_tags = seo_generer_meta_tags(null, $contexte);
foreach ($meta_tags as $key => $meta) {
$preg = '';
if ($key=='title') {
/**
* Si le tag est <title>
*/
$preg = "/(<{$key}[^>]*>.*<\/{$key}[^>]*>)/Uims";
} else {
/**
* Le tag est une <meta>
*/
$preg = "/(<meta\s+name=['\"]{$key}['\"][^>]*>)/Uims";
}
// remplacer la meta si on la trouve
if ($preg and preg_match($preg, $head, $match)) {
if (stristr($match[0], "data-strict") === FALSE)
$head = str_replace($match[0], $meta, $head);
} else {
$append .= "$meta\n";
}
}
}
/* META GOOGLE WEBMASTER TOOLS */
if (isset($config['webmaster_tools'])
and isset($config['webmaster_tools']['activate'])
and $config['webmaster_tools']['activate']=='yes'
and $is_sommaire) {
$append .= "\n" . seo_generer_webmaster_tools();
}
if (isset($config['bing'])
and isset($config['bing']['activate'])
and $config['bing']['activate'] == 'yes'
and $is_sommaire) {
$append .= "\n" . seo_generer_bing();
}
/* CANONICAL URL */
if (isset($config['canonical_url'])
and isset($config['canonical_url']['activate'])
and $config['canonical_url']['activate']=='yes') {
$append .= "\n" . seo_generer_urls_canoniques($contexte);
}
/* GOOGLE ANALYTICS */
if (isset($config['analytics'])
and isset($config['analytics']['activate'])
and $config['analytics']['activate']=='yes') {
$append .= "\n" . seo_generer_google_analytics();
}
/* ALEXA */
if (isset($config['alexa'])
and isset($config['alexa']['activate'])
and $config['alexa']['activate'] == 'yes'
and $is_sommaire) {
$append .= "\n" . seo_generer_alexa();
}
if ($append) {
$append = "\n$append\n";
// sinon ajouter en fin de </head>
if ($p = stripos($head, '</head>')) {
$head = substr_replace($head, $append, $p, 0);
} else {
$head .= $append;
}
}
return $head;
}
/**
* Renvoyer la balise <link> pour URL CANONIQUES
*
* @param array $contexte
* @return string
*/
function seo_generer_urls_canoniques($contexte) {
include_spip('inc/urls');
$i = seo_interprete_contexte($contexte);
if (isset($i['id_objet'])) {
return '<link rel="canonical" href="' . generer_url_entite_absolue($i['id_objet'], $i['objet']) . '" />';
} elseif ($i['objet'] == 'sommaire') {
return '<link rel="canonical" href="' . url_de_base() . '" />';
}
return '';
}
/**
* Renvoyer la balise SCRIPT de Google Analytics
*
* @return string
*/
function seo_generer_google_analytics() {
include_spip('inc/config');
/* GOOGLE ANALYTICS */
if ($id = lire_config('seo/analytics/id')) {
$id = texte_script($id);
// Nouvelle balise : http://www.google.com/support/analytics/bin/answer.py?hl=fr_FR&answer=174090&utm_id=ad
if (!lire_config('seo/analytics/universal')) {
return "<script type=\"text/javascript\">
var _gaq = _gaq || [];
_gaq.push(['_setAccount', '$id']);
_gaq.push(['_trackPageview']);
(function() {
var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
})();
</script>
";
} else {
return "<script type=\"text/javascript\">
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
ga('create', '$id', 'auto');
ga('send', 'pageview');
</script>
";
}
}
return '';
}
/**
* Renvoyer les META Classiques
* - Meta Titre / Description / etc.
*
* @param null|array $contexte
* @return array
*/
function seo_calculer_meta_tags($contexte = null) {
include_spip('inc/config');
include_spip('inc/filtres');
$config = lire_config('seo/');
if (is_null($contexte)) {
$contexte = $GLOBALS['contexte'];
}
$i = seo_interprete_contexte($contexte);
/* META TAGS */
// If the meta tags configuration is activate
$meta_tags = array();
if (isset($i['id_objet'])) {
$trouver_table = charger_fonction('trouver_table', 'base');
$desc = $trouver_table($i['table_sql']);
$select = array();
if (isset($desc['titre'])) {
$select[] = $desc['titre'];
} elseif (isset($desc['field']['titre'])) {
$select[] = 'titre';
}
if (isset($desc['field']['descriptif'])) {
$select[] = 'descriptif';
}
if (isset($desc['field']['chapo'])) {
$select[] = 'chapo';
}
if (isset($desc['field']['texte'])) {
$select[] = 'texte';
}
$tag = array();
if (count($select)) {
$select = implode(',', $select);
$row = sql_fetsel($select, $i['table_sql'], $i['primary'].'=' . intval($i['id_objet']));
if ($row) {
if (isset($row['titre'])) {
$tag['title'] = couper(extraire_multi($row['titre'], isset($contexte['lang']) ? $contexte['lang'] : $GLOBALS['spip_lang']), 64);
unset($row['titre']);
}
if (isset($row['lang'])) {
unset($row['lang']);
}
if (count($row)) {
$tag['description'] = couper(implode(' ', $row), 150, '');
}
}
}
// Get the value set by default
if (isset($config['meta_tags']['default']) and is_array($config['meta_tags']['default'])) {
foreach ($config['meta_tags']['default'] as $name => $option) {
$meta_tags[$name] = array();
if (in_array($option, array('page', 'page_sommaire'))) {
if (isset($tag[$name])) {
$meta_tags[$name][] = $tag[$name];
}
}
if (in_array($option, array('sommaire','page_sommaire'))) {
if (isset($config['meta_tags']['tag'][$name])) {
$meta_tags[$name][] = $config['meta_tags']['tag'][$name];
}
}
if (count($meta_tags[$name])) {
$meta_tags[$name] = implode(' - ', $meta_tags[$name]);
} else {
unset($meta_tags[$name]);
}
}
}
// If the meta tags rubrique and articles editing is activate (should overwrite other setting)
if (isset($config['meta_tags']['activate_editing'])
and $config['meta_tags']['activate_editing'] == 'yes') {
$result = sql_select('*', 'spip_seo', 'id_objet=' . intval($i['id_objet']) . ' AND objet=' . sql_quote($i['objet']));
while ($r = sql_fetch($result)) {
if ($r['meta_content'] != '') {
$meta_tags[$r['meta_name']] = $r['meta_content'];
}
}
}
} elseif ($i['objet'] == 'sommaire') {
$meta_tags = isset($config['meta_tags']['tag'])?$config['meta_tags']['tag']:array();
}
$meta_tags = pipeline('post_seo', array
(
'args' => array(
'contexte' => $contexte,
'config' => $config
),
'data' => $meta_tags
)
);
return $meta_tags;
}
/**
* @param null|array $contexte
* @param null|array $meta_tags
* @return array
*/
function seo_generer_meta_tags($meta_tags = null, $contexte = null) {
$tags = array();
//Set meta list if not provided
if (!is_array($meta_tags)) {
$meta_tags = seo_calculer_meta_tags($contexte);
}
// Print the result on the page
foreach ($meta_tags as $name => $content) {
if ($content!='') {
if ($name == 'title') {
$tags[$name] = '<title>' . trim(entites_html(supprimer_numero(textebrut(propre($content))))) . '</title>';
} else {
$tags[$name] = '<meta name="' . $name . '" content="' . trim(attribut_html(textebrut(propre($content)))) . '" />';
}
}
}
return $tags;
}
/**
* Renvoyer une META toute seule (hors balise)
* @param string $nom
* @return string
*/
function seo_generer_meta_brute($nom) {
include_spip('inc/config');
return lire_config("seo/meta_tags/tag/$nom", '');
}
/**
* Renvoyer la META GOOGLE WEBMASTER TOOLS
* @return string
*/
function seo_generer_webmaster_tools() {
include_spip('inc/config');
if ($id = lire_config('seo/webmaster_tools/id')) {
return '<meta name="google-site-verification" content="' . texte_script($id) . '" />';
}
}
/**
* Renvoyer la META BING TOOLS
* @return string
*/
function seo_generer_bing() {
include_spip('inc/config');
if ($id=lire_config('seo/bing/id')) {
return '<meta name="msvalidate.01" content="' . texte_script($id) . '" />';
}
}
/**
* Renvoyer la META ALEXA
* @return string
*/
function seo_generer_alexa() {
include_spip('inc/config');
if ($id=lire_config('seo/alexa/id')) {
return '<meta name="alexaVerifyID" content="' . texte_script($id) . '" />';
}
}
/**
* #SEO_URL
* Renvoyer la balise <link> pour URL CANONIQUES
* @param $p
*/
function balise_SEO_URL_dist($p) {
$p->code = "seo_generer_urls_canoniques(\$Pile[0])";
$p->interdire_scripts = false;
return $p;
}
/**
* #SEO_GA
* Renvoyer la balise SCRIPT de Google Analytics
* @param $p
*/
function balise_SEO_GA_dist($p) {
$p->code = "seo_generer_google_analytics()";
$p->interdire_scripts = false;
return $p;
}
/**
* #SEO_META_TAGS
* Renvoyer les META editoriales
* - Meta Titre / Description / etc.
* @param $p
*/
function balise_SEO_META_TAGS_dist($p) {
$p->code = 'implode("\\n",seo_generer_meta_tags(null,$Pile[0]))';
$p->interdire_scripts = false;
return $p;
}
/**
* #SEO_META_BRUTE{nom_de_la_meta}
* Renvoyer la valeur de la meta appelée (sans balise)
* @param $p
*/
function balise_SEO_META_BRUTE_dist($p) {
$_nom = str_replace("'", '', interprete_argument_balise(1, $p));
$p->code = "table_valeur(seo_calculer_meta_tags(),$_nom,'')";
$p->interdire_scripts = false;
return $p;
}
/**
* #SEO_GWT
* Renvoyer la META GOOGLE WEBMASTER TOOLS
* @param $p
*/
function balise_SEO_GWT_dist($p) {
$p->code = "seo_generer_webmaster_tools()";
$p->interdire_scripts = false;
return $p;
}
/**
* #SEO : insere toutes les meta d'un coup, a l'endroit indique
* @param $p
*/
function balise_SEO_dist($p) {
$p->code = "seo_insere_remplace_metas('',\$Pile[0])";
$p->interdire_scripts = false;
return $p;
}