Official Addons for the Friendica Communications Platform. (please note that this is a clone of the repository at github, issues are handled there)
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<?php
/**
* Name: Buffer Post Connector
* Description: Post to Buffer (Facebook Pages, LinkedIn, Twitter)
* Version: 0.2
* Author: Michael Vogel <http://pirati.ca/profile/heluecht>
*/
require 'addon/buffer/bufferapp.php';
use Friendica\App;
use Friendica\Core\Config;
use Friendica\Core\Hook;
use Friendica\Core\L10n;
use Friendica\Core\Logger;
use Friendica\Core\PConfig;
use Friendica\Core\Protocol;
use Friendica\Core\Renderer;
use Friendica\Database\DBA;
use Friendica\Model\ItemContent;
use Friendica\Util\Proxy as ProxyUtils;
use Friendica\Util\Strings;
function buffer_install()
{
Hook::register('hook_fork', 'addon/buffer/buffer.php', 'buffer_hook_fork');
Hook::register('post_local', 'addon/buffer/buffer.php', 'buffer_post_local');
Hook::register('notifier_normal', 'addon/buffer/buffer.php', 'buffer_send');
Hook::register('jot_networks', 'addon/buffer/buffer.php', 'buffer_jot_nets');
Hook::register('connector_settings', 'addon/buffer/buffer.php', 'buffer_settings');
Hook::register('connector_settings_post', 'addon/buffer/buffer.php', 'buffer_settings_post');
}
function buffer_uninstall()
{
Hook::unregister('hook_fork', 'addon/buffer/buffer.php', 'buffer_hook_fork');
Hook::unregister('post_local', 'addon/buffer/buffer.php', 'buffer_post_local');
Hook::unregister('notifier_normal', 'addon/buffer/buffer.php', 'buffer_send');
Hook::unregister('jot_networks', 'addon/buffer/buffer.php', 'buffer_jot_nets');
Hook::unregister('connector_settings', 'addon/buffer/buffer.php', 'buffer_settings');
Hook::unregister('connector_settings_post', 'addon/buffer/buffer.php', 'buffer_settings_post');
}
function buffer_module()
{
}
function buffer_content(App $a)
{
if (! local_user()) {
notice(L10n::t('Permission denied.') . EOL);
return '';
}
require_once "mod/settings.php";
settings_init($a);
if (isset($a->argv[1])) {
switch ($a->argv[1]) {
case "connect":
$o = buffer_connect($a);
break;
default:
$o = print_r($a->argv, true);
break;
}
} else {
$o = buffer_connect($a);
}
return $o;
}
function buffer_addon_admin(App $a, &$o)
{
$t = Renderer::getMarkupTemplate("admin.tpl", "addon/buffer/");
$o = Renderer::replaceMacros($t, [
'$submit' => L10n::t('Save Settings'),
// name, label, value, help, [extra values]
'$client_id' => ['client_id', L10n::t('Client ID'), Config::get('buffer', 'client_id'), ''],
'$client_secret' => ['client_secret', L10n::t('Client Secret'), Config::get('buffer', 'client_secret'), ''],
]);
}
function buffer_addon_admin_post(App $a)
{
$client_id = (!empty($_POST['client_id']) ? Strings::escapeTags(trim($_POST['client_id'])) : '');
$client_secret = (!empty($_POST['client_secret']) ? Strings::escapeTags(trim($_POST['client_secret'])) : '');
Config::set('buffer', 'client_id' , $client_id);
Config::set('buffer', 'client_secret', $client_secret);
info(L10n::t('Settings updated.'). EOL);
}
function buffer_connect(App $a)
{
if (isset($_REQUEST["error"])) {
$o = L10n::t('Error when registering buffer connection:')." ".$_REQUEST["error"];
return $o;
}
// Start a session. This is necessary to hold on to a few keys the callback script will also need
session_start();
// Define the needed keys
$client_id = Config::get('buffer','client_id');
$client_secret = Config::get('buffer','client_secret');
// The callback URL is the script that gets called after the user authenticates with buffer
$callback_url = $a->getBaseURL()."/buffer/connect";
$buffer = new BufferApp($client_id, $client_secret, $callback_url);
if (!$buffer->ok) {
$o = '<a href="' . $buffer->get_login_url() . '">Connect to Buffer!</a>';
} else {
Logger::log("buffer_connect: authenticated");
$o = L10n::t("You are now authenticated to buffer. ");
$o .= '<br /><a href="' . $a->getBaseURL() . '/settings/connectors">' . L10n::t("return to the connector page") . '</a>';
PConfig::set(local_user(), 'buffer','access_token', $buffer->access_token);
}
return $o;
}
function buffer_jot_nets(App $a, array &$jotnets_fields)
{
if (!local_user()) {
return;
}
if (PConfig::get(local_user(), 'buffer', 'post')) {
$jotnets_fields[] = [
'type' => 'checkbox',
'field' => [
'buffer_enable',
L10n::t('Post to Buffer'),
PConfig::get(local_user(), 'buffer', 'post_by_default')
]
];
}
}
function buffer_settings(App $a, &$s)
{
if (! local_user()) {
return;
}
/* Add our stylesheet to the page so we can make our settings look nice */
$a->page['htmlhead'] .= '<link rel="stylesheet" type="text/css" href="' . $a->getBaseURL() . '/addon/buffer/buffer.css' . '" media="all" />' . "\r\n";
/* Get the current state of our config variables */
$enabled = PConfig::get(local_user(),'buffer','post');
$checked = (($enabled) ? ' checked="checked" ' : '');
$css = (($enabled) ? '' : '-disabled');
$def_enabled = PConfig::get(local_user(),'buffer','post_by_default');
$def_checked = (($def_enabled) ? ' checked="checked" ' : '');
/* Add some HTML to the existing form */
$s .= '<span id="settings_buffer_inflated" class="settings-block fakelink" style="display: block;" onclick="openClose(\'settings_buffer_expanded\'); openClose(\'settings_buffer_inflated\');">';
$s .= '<img class="connector'.$css.'" src="images/buffer.png" /><h3 class="connector">'. L10n::t('Buffer Export').'</h3>';
$s .= '</span>';
$s .= '<div id="settings_buffer_expanded" class="settings-block" style="display: none;">';
$s .= '<span class="fakelink" onclick="openClose(\'settings_buffer_expanded\'); openClose(\'settings_buffer_inflated\');">';
$s .= '<img class="connector'.$css.'" src="images/buffer.png" /><h3 class="connector">'. L10n::t('Buffer Export').'</h3>';
$s .= '</span>';
$client_id = Config::get("buffer", "client_id");
$client_secret = Config::get("buffer", "client_secret");
$access_token = PConfig::get(local_user(), "buffer", "access_token");
$s .= '<div id="buffer-password-wrapper">';
if ($access_token == "") {
$s .= '<div id="buffer-authenticate-wrapper">';
$s .= '<a href="'.$a->getBaseURL().'/buffer/connect">'.L10n::t("Authenticate your Buffer connection").'</a>';
$s .= '</div><div class="clear"></div>';
} else {
$s .= '<div id="buffer-enable-wrapper">';
$s .= '<label id="buffer-enable-label" for="buffer-checkbox">' . L10n::t('Enable Buffer Post Addon') . '</label>';
$s .= '<input id="buffer-checkbox" type="checkbox" name="buffer" value="1" ' . $checked . '/>';
$s .= '</div><div class="clear"></div>';
$s .= '<div id="buffer-bydefault-wrapper">';
$s .= '<label id="buffer-bydefault-label" for="buffer-bydefault">' . L10n::t('Post to Buffer by default') . '</label>';
$s .= '<input id="buffer-bydefault" type="checkbox" name="buffer_bydefault" value="1" ' . $def_checked . '/>';
$s .= '</div><div class="clear"></div>';
$s .= '<div id="buffer-delete-wrapper">';
$s .= '<label id="buffer-delete-label" for="buffer-delete">' . L10n::t('Check to delete this preset') . '</label>';
$s .= '<input id="buffer-delete" type="checkbox" name="buffer_delete" value="1" />';
$s .= '</div><div class="clear"></div>';
// The callback URL is the script that gets called after the user authenticates with buffer
$callback_url = $a->getBaseURL() . '/buffer/connect';
$buffer = new BufferApp($client_id, $client_secret, $callback_url, $access_token);
$profiles = $buffer->go('/profiles');
if (is_array($profiles)) {
$s .= '<div id="buffer-accounts-wrapper">';
$s .= L10n::t("Posts are going to all accounts that are enabled by default:");
$s .= "<ul>";
foreach ($profiles as $profile) {
if (!$profile->default)
continue;
$s .= "<li>";
//$s .= "<img src='".$profile->avatar_https."' width='16' />";
$s .= " ".$profile->formatted_username." (".$profile->formatted_service.")";
$s .= "</li>";
}
$s .= "</ul>";
$s .= '</div><div class="clear"></div>';
}
}
$s .= '</div><div class="clear"></div>';
/* provide a submit button */
$s .= '<div class="settings-submit-wrapper" ><input type="submit" id="buffer-submit" name="buffer-submit" class="settings-submit" value="' . L10n::t('Save Settings') . '" /></div></div>';
}
function buffer_settings_post(App $a, array &$b)
{
if (!empty($_POST['buffer-submit'])) {
if (!empty($_POST['buffer_delete'])) {
PConfig::set(local_user(), 'buffer', 'access_token' , '');
PConfig::set(local_user(), 'buffer', 'post' , false);
PConfig::set(local_user(), 'buffer', 'post_by_default', false);
} else {
PConfig::set(local_user(), 'buffer', 'post' , intval(defaults($_POST, 'buffer', false)));
PConfig::set(local_user(), 'buffer', 'post_by_default', intval(defaults($_POST, 'buffer_bydefault', false)));
}
}
}
function buffer_post_local(App $a, array &$b)
{
if (!local_user() || (local_user() != $b['uid'])) {
return;
}
$buffer_post = intval(PConfig::get(local_user(),'buffer','post'));
$buffer_enable = (($buffer_post && !empty($_REQUEST['buffer_enable'])) ? intval($_REQUEST['buffer_enable']) : 0);
if ($b['api_source'] && intval(PConfig::get(local_user(),'buffer','post_by_default'))) {
$buffer_enable = 1;
}
if (!$buffer_enable) {
return;
}
if (strlen($b['postopts'])) {
$b['postopts'] .= ',';
}
$b['postopts'] .= 'buffer';
}
function buffer_hook_fork(&$a, &$b)
{
if ($b['name'] != 'notifier_normal') {
return;
}
$post = $b['data'];
if ($post['deleted'] || $post['private'] || ($post['created'] !== $post['edited']) ||
!strstr($post['postopts'], 'buffer') || ($post['parent'] != $post['id'])) {
$b['execute'] = false;
return;
}
}
function buffer_send(App $a, array &$b)
{
if ($b['deleted'] || $b['private'] || ($b['created'] !== $b['edited'])) {
return;
}
if (!strstr($b['postopts'],'buffer')) {
return;
}
if ($b['parent'] != $b['id']) {
return;
}
// Dont't post if the post doesn't belong to us.
// This is a check for forum postings
$self = DBA::selectFirst('contact', ['id'], ['uid' => $b['uid'], 'self' => true]);
if ($b['contact-id'] != $self['id']) {
return;
}
// if post comes from buffer don't send it back
//if($b['app'] == "Buffer")
// return;
$client_id = Config::get("buffer", "client_id");
$client_secret = Config::get("buffer", "client_secret");
$access_token = PConfig::get($b['uid'], "buffer","access_token");
$callback_url = "";
if ($access_token) {
$buffer = new BufferApp($client_id, $client_secret, $callback_url, $access_token);
$profiles = $buffer->go('/profiles');
if (is_array($profiles)) {
Logger::log("Will send these parameter ".print_r($b, true), Logger::DEBUG);
foreach ($profiles as $profile) {
if (!$profile->default)
continue;
$send = false;
switch ($profile->service) {
case 'facebook':
$send = ($b["extid"] != Protocol::FACEBOOK);
$limit = 0;
$markup = false;
$includedlinks = false;
$htmlmode = 9;
break;
case 'google':
$send = ($b["extid"] != Protocol::GPLUS);
$limit = 0;
$markup = true;
$includedlinks = false;
$htmlmode = 9;
break;
case 'twitter':
$send = ($b["extid"] != Protocol::TWITTER);
$limit = 280;
$markup = false;
$includedlinks = true;
$htmlmode = 8;
break;
case 'linkedin':
$send = ($b["extid"] != Protocol::LINKEDIN);
$limit = 700;
$markup = false;
$includedlinks = true;
$htmlmode = 2;
break;
}
if (!$send)
continue;
$item = $b;
// Markup for Google+
if ($markup) {
if ($item["title"] != "") {
$item["title"] = "*" . $item["title"] . "*";
}
$item["body"] = preg_replace("(\[b\](.*?)\[\/b\])ism", '*$1*', $item["body"]);
$item["body"] = preg_replace("(\[i\](.*?)\[\/i\])ism", '_$1_', $item["body"]);
$item["body"] = preg_replace("(\[s\](.*?)\[\/s\])ism", '-$1-', $item["body"]);
}
$post = ItemContent::getPlaintextPost($item, $limit, $includedlinks, $htmlmode);
Logger::log("buffer_send: converted message ".$b["id"]." result: ".print_r($post, true), Logger::DEBUG);
// The image proxy is used as a sanitizer. Buffer seems to be really picky about pictures
if (isset($post["image"])) {
$post["image"] = ProxyUtils::proxifyUrl($post["image"]);
}
if (isset($post["preview"])) {
$post["preview"] = ProxyUtils::proxifyUrl($post["preview"]);
}
// Seems like a bug to me
// Buffer doesn't add links to Twitter (but pictures)
if (($profile->service == "twitter") && isset($post["url"]) && ($post["type"] != "photo")) {
$post["text"] .= " " . $post["url"];
} elseif ($profile->service == "google") {
$post["text"] .= html_entity_decode("&#x00A0;", ENT_QUOTES, 'UTF-8'); // Send a special blank to identify the post through the "fromgplus" addon
}
$message = [];
$message["text"] = $post["text"];
$message["profile_ids[]"] = $profile->id;
$message["shorten"] = false;
$message["now"] = true;
if (isset($post["title"])) {
$message["media[title]"] = $post["title"];
}
if (isset($post["description"])) {
$message["media[description]"] = $post["description"];
}
if (isset($post["url"]) && ($post["type"] != "photo")) {
$message["media[link]"] = $post["url"];
}
if (isset($post["image"])) {
$message["media[picture]"] = $post["image"];
if ($post["type"] == "photo") {
$message["media[thumbnail]"] = $post["image"];
}
}
if (isset($post["preview"])) {
$message["media[thumbnail]"] = $post["preview"];
}
//print_r($message);
Logger::log("buffer_send: data for message " . $b["id"] . ": " . print_r($message, true), Logger::DEBUG);
$ret = $buffer->go('/updates/create', $message);
Logger::log("buffer_send: send message " . $b["id"] . " result: " . print_r($ret, true), Logger::DEBUG);
}
}
}
}