0cache Gravatar WordPress local

Publié par & déposé sous Wordpress.

J'aime avoir des avatars montrés pour les personnes qui commentent sur mon blog. WordPress prend en charge le service gravatar nativement permettant ainsi ce qui est très facile. Cependant, il est livré avec un coût - l'accès à des fichiers externes à partir d'un autre domaine ajoute beaucoup de temps de charge supplémentaire sous la forme de nouveaux DNS lookups, nouveau SSL les connexions pour, etc. Ne serait-il pas agréable d'avoir gravatars stocké localement et servi à partir de votre propre serveur. Eh bien, c'est ce que je fais depuis un certain temps, si vous voulez savoir comment, continuer à lire…

In case you’re still won­der­ing just why you’d want to do this, let me offer a few more bene­fits — images served loc­ally can be com­pressed before serving them, for example ‑all my images are con­ver­ted into webp ver­sions, and any browser which sup­ports webp gets the webp ver­sion. This is in addi­tion to the reduc­tion from not hav­ing to con­nect to an extern­al serv­er. The loc­al resources can also have a cach­ing head­er set on them so that browsers will cache them. Gravatar does­n’t provide for a very long cache time.

I have cre­ated 3 cus­tom func­tions, que je place tout simplement dans le functions.php de mon thème. The first is a cus­tom fil­ter for the nat­ive word­press get_avatar(). La deuxième avatars grappins de gravatar et Google Appelée, and the third cre­ates a daily cronjob which refreshes the gravatars — in case they’ve been changed, or a pre­vi­ously unavail­able one is now available.

You will need to do a little bit of tinker­ing to make it com­pat­ible with your theme — I use the “bones” frame­work as you’ll notice in the 3rd func­tion I’ve reused some code that it provided. You will also need to cre­ate, or cus­tom­ise the path to store the gravatars, which in my case are stored in the theme folder in the sub­path “/library/images/gravatars/”

/*********************************************\
* Filtre get_avatar à utiliser avatars locaux seulement *
\*********************************************/
fonction bones_gravatar($avatar, $id_or_email, $taille, $défaut, $alt)
{
$root_path = get_template_directory_uri() . '/ Bibliothèque / images / gravatars /';
$root_path_local = get_template_directory() . '/ Bibliothèque / images / gravatars /';
$gravatar_path = $ root_path . 'Default_avatar';
$gravatar_path_hidpi = « data-gravatar-HiDPI ="». Root_path $ . « Default_avatar-hidpi.png"»;

//shamelessly reuse original code to get the e-mail address

$email = '';
si ( is_numeric($id_or_email) )
{
$id = (int) $id_or_email;
$user = get_userdata($la);
si ( $utilisateur ) $email = $ user->user_email;
}
elseif ( is_object($id_or_email) )
{
// No avatar for pingbacks or trackbacks
$allowed_comment_types = apply_filters( '' get_avatar_comment_types, tableau( «Commentaire» ) );
si ( ! vide( $id_or_email->comment_type ) && ! in_array( $id_or_email->comment_type, (tableau) $allowed_comment_types ) ) return false;
si ( !vide($id_or_email->identifiant d'utilisateur) )
{
$id = (int) $id_or_email->identifiant d'utilisateur;
$user = get_userdata($la);
si ( $utilisateur) $email = $ user->user_email;
}
elseif ( !vide($id_or_email->comment_author_email) )
{
$email = $ id_or_email->comment_author_email;
}
}
autre
{
$email = $ id_or_email;
}

si ( !vide($email) )
{
$email_hash = md5( strtolower( réduire( $email ) ) );
si(le fichier existe($root_path_local . $email_hash . '.png'))
{
//if we have a local cache then use it
$gravatar_path= $root_path . $email_hash ;
$gravatar_path_hidpi = « data-gravatar-HiDPI ="». Root_path $ . $email_hash . « -hidpi.png"»;
}
}
si($taille >= 47) $avatar = '<classe img ="charge gravatar avatar avatar - '$ size.' photo" width ="'$ Taille.'" hauteur ="'$ Taille.'" src ="» . $gravatar_path . « -hidpi.png" alt ="gravatar" />»;
Sinon $ avatar = '<classe img ="charge gravatar avatar avatar - '$ size.' photo" width ="'$ Taille.'" hauteur ="'$ Taille.'" src ="» . $gravatar_path . » .png" alt ="gravatar" » . $gravatar_path_hidpi . '/>»;

retour avatar $;
}

add_filter('Get_avatar', 'Bones_gravatar', 10, 5);






/***********************\
* Créer cache gravatar *
\***********************/
fonction grab_avatar($comment_id,$commentaire,$rafraîchir = false,$email = '')
{
tu dors(20);
$root_path = get_template_directory_uri() . '/ Bibliothèque / images / gravatars /';
$root_path_local = get_template_directory() . '/ Bibliothèque / images / gravatars /';
si($rafraîchir == false) $img_name = md5( get_comment_author_email($comment_id) );
autre img_name = $ md5( $email );
si(!le fichier existe($root_path_local . $img_name . '.png') || $rafraîchir == true)
{
si($rafraîchir == false) $bgauthemail = get_comment_author_email();
Sinon $ bgauthemail = $ email;
//try google first
$domain= explode("@",$bgauthemail);
si($domaine[1]=="gmail.com")
{
$ch = curl_init();
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, faux);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, vrai);
curl_setopt($ch, CURLOPT_URL, "https://picasaweb.google.com/data/entry/api/user/" . $bgauthemail . "?alt = json");
$résultat = curl_exec($ch);
curl_close($ch);

$obj = json_decode($résultat,vrai);
$avatar_from_gmail = $ obj['entrée']["GPhoto $ miniature"]['$ T'];

$extension = strrchr($avatar_from_gmail, '');

$ch = curl_init($avatar_from_gmail);
curl_setopt( $ch, CURLOPT_NOBODY, vrai );
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, faux );
curl_setopt( $ch, CURLOPT_HEADER, faux );
curl_setopt( $ch, CURLOPT_FOLLOWLOCATION, vrai );
curl_setopt( $ch, CURLOPT_MAXREDIRS, 3 );
curl_exec( $ch );
$headers = curl_getinfo( $ch );
curl_close( $ch );
si($têtes['HTTP_CODE'] === 200)
{
$ch = curl_init($avatar_from_gmail);
$fp = fopen($root_path_local . $img_name . '-hidpi' . $extension, 'Wb');
curl_setopt($ch,CURLOPT_USERAGENT,« Mozilla / 5.0 (windows NT 6.1; Win64; x64) AppleWebKit / 537,36 (KHTML, comme Gecko) Chrome / Safari 39.0.2171.62 / 537,36');
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_HEADER, 0);

curl_exec($ch);
curl_close($ch);

fclose($fp);

$usegravatar = false;

$small_image = wp_get_image_editor($root_path_local . $img_name . '-hidpi' . $extension);
si ( ! is_wp_error( $small_image ) )
{
//vérifier est pas une image de l'homme blanc, si c'est le cas, delete it
if (md5_file($root_path_local . $img_name . '-hidpi.jpg') == strtolower("686E5C46776BA0E5C488853C1C0B492C"))
{
//delete
unlink($root_path_local . $img_name . '-hidpi.jpg');
//try gravatar
$usegravatar=true;
}
else if (md5_file($root_path_local . $img_name . '-hidpi.jpg') == strtolower("6D4083BE95FB32358A5110F5A83B9979"))
{
//delete
unlink($root_path_local . $img_name . '-hidpi.jpg');
//try gravatar
$usegravatar=true;
}
autre
{
//always convert to png because some plugins expect all gravatars to be pngs
$small_image->enregistrer($root_path_local . $img_name . '-hidpi.png','Image / jpeg');
$small_image->redimensionner(40, 40, vrai);
$small_image->set_quality( 10 );
$small_image->enregistrer($root_path_local . $img_name . '.png','Image / jpeg');
si($l'extension ==".jpg") séparer($root_path_local . $img_name . '-hidpi.jpg');
}
}
}

}
//check e-mail isnt a blank generic one
else if($bgauthemail!=="noemail@intensedebate.com" || $usegravatar == true)
{
$avatar_from_gravatar = "https://www.gravatar.com/avatar/" . $img_name . "?s = 80&d = 404";
$ch = curl_init($avatar_from_gravatar);
curl_setopt( $ch, CURLOPT_NOBODY, vrai );
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, faux );
curl_setopt( $ch, CURLOPT_HEADER, faux );
curl_setopt( $ch, CURLOPT_FOLLOWLOCATION, vrai );
curl_setopt( $ch, CURLOPT_MAXREDIRS, 3 );
curl_exec( $ch );
$headers = curl_getinfo( $ch );
curl_close( $ch );
si($têtes['HTTP_CODE'] === 200)
{
$ch = curl_init($avatar_from_gravatar);
$fp = fopen($root_path_local . $img_name . '-hidpi.png', 'Wb');
curl_setopt($ch,CURLOPT_USERAGENT,« Mozilla / 5.0 (windows NT 6.1; Win64; x64) AppleWebKit / 537,36 (KHTML, comme Gecko) Chrome / Safari 39.0.2171.62 / 537,36');
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_HEADER, 0);

curl_exec($ch);
curl_close($ch);

fclose($fp);

$small_image = wp_get_image_editor($root_path_local . $img_name . '-hidpi.png');
si ( ! is_wp_error( $small_image ) )
{
$small_image->redimensionner(40, 40, vrai);
$small_image->enregistrer($root_path_local . $img_name . '.png');
}
}
}
}
}
add_action('Wp_insert_comment', 'Grab_avatar');






/********************************************\
* Actualiser cache gravatar en arrière-plan quotidien *
\********************************************/
add_action( 'Wp', 'Bones_setup_schedule' );
fonction bones_setup_schedule() {
si ( ! wp_next_scheduled( 'Bones_daily_event' ) ) {
wp_schedule_event( temps(), 'du quotidien', 'Bones_daily_event');
}
}

add_action( 'Bones_daily_event', '' bones_refresh_gravatars );
fonction bones_refresh_gravatars()
{
//get list of gravatars somehow
global $wpdb;
$comment_author_emails = $ wpdb->get_results( "SELECT DISTINCT(comment_author_email) DE " . $wpdb->préfixe . "commentaires" );
pour chaque($comment_author_emails comme $ key => $val)
{
pour chaque($val comme $ a => $b)
{
grab_avatar('','',vrai,$b);
}
}
}

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