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<?php
/*
Plugin Name: Publicize With Hashtags
Plugin URI: http://www.ryadel.com/works/publicize-with-hashtags/
Description: Automatically append hashtags to any content sent by Jetpack's Publicize module: hashtags will be created using post tags: dupe check and an optional length-based threshold are also included.
Version: 0.1.4
License: GPLv2 or later
Author: Darkseal
Author URI: http://www.ryadel.com/
*/
/*
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
// If Jetpack is not installed or Publicize module isn't active, just exit now.
if (!class_exists('Jetpack') || !Jetpack::is_module_active('publicize')) return;
// Main function
function publicize_with_hashtags($ignorePostStatus = false) {
// Set an optional character threshold (set to null to disable).
// If you set it as a positive integer, hashtags will be appended only until this threshold is reached.
// Default is 118, which is good for Twitter considering a default, non-https url length, which is 22 chars as stated by Twitter standards.
// For more info, see https://dev.twitter.com/overview/api/counting-characters and https://dev.twitter.com/overview/t.co Twitter official docs.
// Suggested values:
// 118 if you plan to use only HTTP URLs
// 117 if you plan to use both HTTP and HTTPS (or only HTTPS) URLs
// 140 if you don't plan to append URL infos to your posts
// 0 or <null> or <false>, if you want to tufn-off this check and append hashtags without any char limits - good if you're only using Facebook sharing.
$mess_max_length = 118;
// Set it to TRUE to strip all spaces when converting Tags to Hashtags, i.e. 'Windows 8' -> '#Windows8', FALSE to keep only first.
// Default is TRUE (strip all spaces).
$strip_spaces = true;
// meta tag used by Publicize to store social message. Change this only if you're really know what you're doing.
// If you do and you feel like you should, please contact me so I'll update the plugin aswell.
$meta = '_wpas_mess';
$p = get_post();
if (empty($p)) return;
// If the post is already published do nothing, unless $ignorePostStatus is set to TRUE
if (!$ignorePostStatus && $p->post_status === 'publish') return;
// Get the current post social message
$mess = get_post_meta($p->ID, $meta, true);
// If there's no current post social message, get the title
if (empty($mess)) $mess = $p->post_title;
else {
// Safety net: if the post contains hashtags only, prepend the title.
// This fixes an edge-case scenario when the post get auto-saved before having a proper title set.
if ($mess[0] == "#") {
$a = explode(" ", $mess);
$onlyHashtags = true;
foreach ($a as $w) {
if ($w[0] != "#") {
$onlyHashtags = false;
break;
}
}
if ($onlyHashtags) $mess = $p->post_title ." ". $mess;
}
}
// Performance-wise length check: do nothing if we've already reached or surpassed the threshold (if set).
if (!empty($mess) && !empty($mess_max_length) && $mess_max_length <= (strlen($mess))) return;
// Get the post tags array
$ta = get_the_tags($p->ID);
// Performance-wise tag check: do nothing if we don't (yet) have tags to process.
if (empty($ta)) return;
// From now on, we mean business. Let's start by initializing the social message (if needed).
if (empty($mess)) $mess = '';
// Create list of tags with hashtags in front of them until threshold is reached
foreach ($ta as $t) {
// Create the hashtag, stripping spaces if needed.
$ht = '#' . (($strip_spaces) ? str_replace(' ', '', $t->name) : $t->name);
// only process newly-added hashtags, skipping duplicate ones
if (stripos($mess,$ht) === false) {
if (!empty($mess_max_length) && $mess_max_length <= (strlen($mess) + strlen($ht))) break;
$mess .= ' '.$ht;
}
}
// Update the new social message
update_post_meta($p->ID, $meta, $mess);
}
// Hook the plugin action to 'save_post' handler.
add_action('save_post', 'publicize_with_hashtags', 99);
?>
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