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-rw-r--r--Zotlabs/Module/Articles.php12
-rw-r--r--Zotlabs/Module/Channel.php21
-rw-r--r--include/opengraph.php71
3 files changed, 86 insertions, 18 deletions
diff --git a/Zotlabs/Module/Articles.php b/Zotlabs/Module/Articles.php
index ca132c01e..e3ad54be8 100644
--- a/Zotlabs/Module/Articles.php
+++ b/Zotlabs/Module/Articles.php
@@ -9,6 +9,7 @@ use Zotlabs\Lib\PermissionDescription;
require_once('include/channel.php');
require_once('include/conversation.php');
require_once('include/acl_selectors.php');
+require_once('include/opengraph.php');
class Articles extends Controller {
@@ -192,7 +193,7 @@ class Articles extends Controller {
$parents_str = ids_to_querystr($r,'id');
- $items = q("SELECT item.*, item.id AS item_id
+ $r = q("SELECT item.*, item.id AS item_id
FROM item
WHERE item.uid = %d $item_normal
AND item.parent IN ( %s )
@@ -200,15 +201,18 @@ class Articles extends Controller {
intval(App::$profile['profile_uid']),
dbesc($parents_str)
);
- if($items) {
- xchan_query($items);
- $items = fetch_post_tags($items, true);
+ if($r) {
+ xchan_query($r);
+ $items = fetch_post_tags($r, true);
$items = conv_sort($items,'updated');
}
else
$items = [];
}
+ // Add Opengraph markup
+ opengraph_add_meta(((! empty($items)) ? $r[0] : array()), App::$profile);
+
$mode = 'articles';
if(get_pconfig(local_channel(),'system','articles_list_mode') && (! $selected_card))
diff --git a/Zotlabs/Module/Channel.php b/Zotlabs/Module/Channel.php
index b1639b213..3f617fd18 100644
--- a/Zotlabs/Module/Channel.php
+++ b/Zotlabs/Module/Channel.php
@@ -13,6 +13,7 @@ require_once('include/items.php');
require_once('include/security.php');
require_once('include/conversation.php');
require_once('include/acl_selectors.php');
+require_once('include/opengraph.php');
/**
@@ -111,17 +112,6 @@ class Channel extends Controller {
// we start loading content
profile_load($which,$profile);
-
- App::$page['htmlhead'] .= '<meta property="og:title" content="' . htmlspecialchars($channel['channel_name']) . '">' . "\r\n";
- App::$page['htmlhead'] .= '<meta property="og:image" content="' . $channel['xchan_photo_l'] . '">' . "\r\n";
-
- if(App::$profile['about'] && perm_is_allowed($channel['channel_id'],get_observer_hash(),'view_profile')) {
- App::$page['htmlhead'] .= '<meta property="og:description" content="' . htmlspecialchars(App::$profile['about']) . '">' . "\r\n";
- }
- else {
- App::$page['htmlhead'] .= '<meta property="og:description" content="' . htmlspecialchars(sprintf( t('This is the home page of %s.'), $channel['channel_name'])) . '">' . "\r\n";
- }
-
}
function get($update = 0, $load = false) {
@@ -362,7 +352,7 @@ class Channel extends Controller {
$parents_str = ids_to_querystr($r,'item_id');
- $items = q("SELECT item.*, item.id AS item_id
+ $r = q("SELECT item.*, item.id AS item_id
FROM item
WHERE item.uid = %d $item_normal
AND item.parent IN ( %s )
@@ -371,8 +361,8 @@ class Channel extends Controller {
dbesc($parents_str)
);
- xchan_query($items);
- $items = fetch_post_tags($items, true);
+ xchan_query($r);
+ $items = fetch_post_tags($r, true);
$items = conv_sort($items,$ordering);
if($load && $mid && (! count($items))) {
@@ -385,6 +375,9 @@ class Channel extends Controller {
$items = array();
}
+ // Add Opengraph markup
+ opengraph_add_meta((isset($decoded) && (! empty($items)) ? $r[0] : array()), App::$profile);
+
if((! $update) && (! $load)) {
if($decoded)
diff --git a/include/opengraph.php b/include/opengraph.php
new file mode 100644
index 000000000..2d72ffca1
--- /dev/null
+++ b/include/opengraph.php
@@ -0,0 +1,71 @@
+<?php
+/**
+ * @file include/opengraph.php
+ * @brief Add Opengraph metadata and related functions.
+ */
+
+
+ /**
+ * @brief Adds Opengraph meta tags into HTML head
+ *
+ * @param array $item
+ * @param array $profile
+ *
+ */
+
+ function opengraph_add_meta($item, $profile) {
+
+ if(! empty($item)) {
+
+ if(! empty($item['title']))
+ $ogtitle = $item['title'];
+
+ // find first image if exist
+ if(preg_match("/\[[zi]mg(=[0-9]+x[0-9]+)?\]([^\[]+)/is", $item['body'], $matches))
+ $ogimage = $matches[2];
+
+ // use summary as description if exist
+ $ogdesc = (empty($item['summary']) ? $item['body'] : $item['summary'] );
+
+ $ogdesc = str_replace("#^[", "[", $ogdesc);
+
+ $ogdesc = bbcode($ogdesc, [ 'tryoembed' => false ]);
+ $ogdesc = trim(html2plain($ogdesc, 0, true));
+ $ogdesc = html_entity_decode($ogdesc, ENT_QUOTES, 'UTF-8');
+
+ // remove all URLs
+ $ogdesc = preg_replace("/https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,\@]+/", "", $ogdesc);
+
+ // shorten description
+ $ogdesc = substr($ogdesc, 0, 300);
+ $ogdesc = str_replace("\n", " ", $ogdesc);
+ while (strpos($ogdesc, " ") !== false)
+ $ogdesc = str_replace(" ", " ", $ogdesc);
+ $ogdesc = rtrim(substr($ogdesc, 0, strrpos($ogdesc, " ")), "?.,:;!-") . "...";
+
+ $ogtype = "article";
+ }
+
+ $channel = channelx_by_n($profile['profile_uid']);
+
+ if(! isset($ogdesc)) {
+ if($profile['about'] && perm_is_allowed($channel['channel_id'],get_observer_hash(),'view_profile')) {
+ $ogdesc = $profile['about'];
+ }
+ else {
+ $ogdesc = sprintf( t('This is the home page of %s.'), $channel['channel_name']);
+ }
+ }
+
+ if(! isset($ogimage))
+ $ogimage = $channel['xchan_photo_l'];
+
+ App::$page['htmlhead'] .= '<meta property="og:title" content="' . htmlspecialchars((isset($ogtitle) ? $ogtitle : $channel['channel_name'])) . '">' . "\r\n";
+ App::$page['htmlhead'] .= '<meta property="og:image" content="' . $ogimage . '">' . "\r\n";
+ App::$page['htmlhead'] .= '<meta property="og:image:type" content="' . guess_image_type($ogimage) . '">' . "\r\n";
+ App::$page['htmlhead'] .= '<meta property="og:description" content="' . htmlspecialchars($ogdesc) . '">' . "\r\n";
+ App::$page['htmlhead'] .= '<meta property="og:type" content="' . (isset($ogtype) ? $ogtype : "profile") . '">' . "\r\n";
+
+ return true;
+ }
+ \ No newline at end of file