buffer/buffer.php

   1 <?php
   2 /**
   3  * Name: Buffer Post Connector
   4  * Description: Post to Buffer (Facebook Pages, LinkedIn, Twitter)
   5  * Version: 0.2
   6  * Author: Michael Vogel <http://pirati.ca/profile/heluecht>
   7  * Status: Unsupported
   8  */
   9 require 'addon/buffer/bufferapp.php';
  10
  11 use Friendica\App;
  12 use Friendica\Core\Config;
  13 use Friendica\Core\Hook;
  14 use Friendica\Core\L10n;
  15 use Friendica\Core\Logger;
  16 use Friendica\Core\Protocol;
  17 use Friendica\Core\Renderer;
  18 use Friendica\Database\DBA;
  19 use Friendica\DI;
  20 use Friendica\Model\ItemContent;
  21 use Friendica\Util\Proxy as ProxyUtils;
  22 use Friendica\Util\Strings;
  23
  24 function buffer_install()
  25 {
  26         Hook::register('hook_fork',            'addon/buffer/buffer.php', 'buffer_hook_fork');
  27         Hook::register('post_local',           'addon/buffer/buffer.php', 'buffer_post_local');
  28         Hook::register('notifier_normal',      'addon/buffer/buffer.php', 'buffer_send');
  29         Hook::register('jot_networks',         'addon/buffer/buffer.php', 'buffer_jot_nets');
  30         Hook::register('connector_settings',      'addon/buffer/buffer.php', 'buffer_settings');
  31         Hook::register('connector_settings_post', 'addon/buffer/buffer.php', 'buffer_settings_post');
  32 }
  33
  34 function buffer_uninstall()
  35 {
  36         Hook::unregister('hook_fork',               'addon/buffer/buffer.php', 'buffer_hook_fork');
  37         Hook::unregister('post_local',              'addon/buffer/buffer.php', 'buffer_post_local');
  38         Hook::unregister('notifier_normal',         'addon/buffer/buffer.php', 'buffer_send');
  39         Hook::unregister('jot_networks',            'addon/buffer/buffer.php', 'buffer_jot_nets');
  40         Hook::unregister('connector_settings',      'addon/buffer/buffer.php', 'buffer_settings');
  41         Hook::unregister('connector_settings_post', 'addon/buffer/buffer.php', 'buffer_settings_post');
  42 }
  43
  44 function buffer_module()
  45 {
  46 }
  47
  48 function buffer_content(App $a)
  49 {
  50         if (! local_user()) {
  51                 notice(L10n::t('Permission denied.') . EOL);
  52                 return '';
  53         }
  54
  55         require_once "mod/settings.php";
  56         settings_init($a);
  57
  58         if (isset($a->argv[1])) {
  59                 switch ($a->argv[1]) {
  60                         case "connect":
  61                                 $o = buffer_connect($a);
  62                                 break;
  63
  64                         default:
  65                                 $o = print_r($a->argv, true);
  66                                 break;
  67                 }
  68         } else {
  69                 $o = buffer_connect($a);
  70         }
  71
  72         return $o;
  73 }
  74
  75 function buffer_addon_admin(App $a, &$o)
  76 {
  77         $t = Renderer::getMarkupTemplate("admin.tpl", "addon/buffer/");
  78
  79         $o = Renderer::replaceMacros($t, [
  80                 '$submit' => L10n::t('Save Settings'),
  81                 // name, label, value, help, [extra values]
  82                 '$client_id' => ['client_id', L10n::t('Client ID'), Config::get('buffer', 'client_id'), ''],
  83                 '$client_secret' => ['client_secret', L10n::t('Client Secret'), Config::get('buffer', 'client_secret'), ''],
  84         ]);
  85 }
  86
  87 function buffer_addon_admin_post(App $a)
  88 {
  89         $client_id     = (!empty($_POST['client_id'])     ? Strings::escapeTags(trim($_POST['client_id']))     : '');
  90         $client_secret = (!empty($_POST['client_secret']) ? Strings::escapeTags(trim($_POST['client_secret'])) : '');
  91
  92         Config::set('buffer', 'client_id'    , $client_id);
  93         Config::set('buffer', 'client_secret', $client_secret);
  94
  95         info(L10n::t('Settings updated.'). EOL);
  96 }
  97
  98 function buffer_connect(App $a)
  99 {
 100         if (isset($_REQUEST["error"])) {
 101                 $o = L10n::t('Error when registering buffer connection:')." ".$_REQUEST["error"];
 102                 return $o;
 103         }
 104
 105         // Start a session.  This is necessary to hold on to  a few keys the callback script will also need
 106         session_start();
 107
 108         // Define the needed keys
 109         $client_id = Config::get('buffer','client_id');
 110         $client_secret = Config::get('buffer','client_secret');
 111
 112         // The callback URL is the script that gets called after the user authenticates with buffer
 113         $callback_url = DI::baseUrl()->get()."/buffer/connect";
 114
 115         $buffer = new BufferApp($client_id, $client_secret, $callback_url);
 116
 117         if (!$buffer->ok) {
 118                 $o = '<a href="' . $buffer->get_login_url() . '">Connect to Buffer!</a>';
 119         } else {
 120                 Logger::log("buffer_connect: authenticated");
 121                 $o = L10n::t("You are now authenticated to buffer. ");
 122                 $o .= '<br /><a href="' . DI::baseUrl()->get() . '/settings/connectors">' . L10n::t("return to the connector page") . '</a>';
 123                 DI::pConfig()->set(local_user(), 'buffer','access_token', $buffer->access_token);
 124         }
 125
 126         return $o;
 127 }
 128
 129 function buffer_jot_nets(App $a, array &$jotnets_fields)
 130 {
 131         if (!local_user()) {
 132                 return;
 133         }
 134
 135         if (DI::pConfig()->get(local_user(), 'buffer', 'post')) {
 136                 $jotnets_fields[] = [
 137                         'type' => 'checkbox',
 138                         'field' => [
 139                                 'buffer_enable',
 140                                 L10n::t('Post to Buffer'),
 141                                 DI::pConfig()->get(local_user(), 'buffer', 'post_by_default')
 142                         ]
 143                 ];
 144         }
 145 }
 146
 147 function buffer_settings(App $a, &$s)
 148 {
 149         if (! local_user()) {
 150                 return;
 151         }
 152
 153         /* Add our stylesheet to the page so we can make our settings look nice */
 154
 155         DI::page()['htmlhead'] .= '<link rel="stylesheet"  type="text/css" href="' . DI::baseUrl()->get() . '/addon/buffer/buffer.css' . '" media="all" />' . "\r\n";
 156
 157         /* Get the current state of our config variables */
 158
 159         $enabled = DI::pConfig()->get(local_user(),'buffer','post');
 160         $checked = (($enabled) ? ' checked="checked" ' : '');
 161         $css = (($enabled) ? '' : '-disabled');
 162
 163         $def_enabled = DI::pConfig()->get(local_user(),'buffer','post_by_default');
 164         $def_checked = (($def_enabled) ? ' checked="checked" ' : '');
 165
 166         /* Add some HTML to the existing form */
 167
 168         $s .= '<span id="settings_buffer_inflated" class="settings-block fakelink" style="display: block;" onclick="openClose(\'settings_buffer_expanded\'); openClose(\'settings_buffer_inflated\');">';
 169         $s .= '<img class="connector'.$css.'" src="images/buffer.png" /><h3 class="connector">'. L10n::t('Buffer Export').'</h3>';
 170         $s .= '</span>';
 171         $s .= '<div id="settings_buffer_expanded" class="settings-block" style="display: none;">';
 172         $s .= '<span class="fakelink" onclick="openClose(\'settings_buffer_expanded\'); openClose(\'settings_buffer_inflated\');">';
 173         $s .= '<img class="connector'.$css.'" src="images/buffer.png" /><h3 class="connector">'. L10n::t('Buffer Export').'</h3>';
 174         $s .= '</span>';
 175
 176         $client_id = Config::get("buffer", "client_id");
 177         $client_secret = Config::get("buffer", "client_secret");
 178         $access_token = DI::pConfig()->get(local_user(), "buffer", "access_token");
 179
 180         $s .= '<div id="buffer-password-wrapper">';
 181
 182         if ($access_token == "") {
 183                 $s .= '<div id="buffer-authenticate-wrapper">';
 184                 $s .= '<a href="'.DI::baseUrl()->get().'/buffer/connect">'.L10n::t("Authenticate your Buffer connection").'</a>';
 185                 $s .= '</div><div class="clear"></div>';
 186         } else {
 187                 $s .= '<div id="buffer-enable-wrapper">';
 188                 $s .= '<label id="buffer-enable-label" for="buffer-checkbox">' . L10n::t('Enable Buffer Post Addon') . '</label>';
 189                 $s .= '<input id="buffer-checkbox" type="checkbox" name="buffer" value="1" ' . $checked . '/>';
 190                 $s .= '</div><div class="clear"></div>';
 191
 192                 $s .= '<div id="buffer-bydefault-wrapper">';
 193                 $s .= '<label id="buffer-bydefault-label" for="buffer-bydefault">' . L10n::t('Post to Buffer by default') . '</label>';
 194                 $s .= '<input id="buffer-bydefault" type="checkbox" name="buffer_bydefault" value="1" ' . $def_checked . '/>';
 195                 $s .= '</div><div class="clear"></div>';
 196
 197                 $s .= '<div id="buffer-delete-wrapper">';
 198                 $s .= '<label id="buffer-delete-label" for="buffer-delete">' . L10n::t('Check to delete this preset') . '</label>';
 199                 $s .= '<input id="buffer-delete" type="checkbox" name="buffer_delete" value="1" />';
 200                 $s .= '</div><div class="clear"></div>';
 201
 202                 // The callback URL is the script that gets called after the user authenticates with buffer
 203                 $callback_url = DI::baseUrl()->get() . '/buffer/connect';
 204
 205                 $buffer = new BufferApp($client_id, $client_secret, $callback_url, $access_token);
 206
 207                 $profiles = $buffer->go('/profiles');
 208                 if (is_array($profiles)) {
 209                         $s .= '<div id="buffer-accounts-wrapper">';
 210                         $s .= L10n::t("Posts are going to all accounts that are enabled by default:");
 211                         $s .= "<ul>";
 212                         foreach ($profiles as $profile) {
 213                                 if (!$profile->default)
 214                                         continue;
 215                                 $s .= "<li>";
 216                                 //$s .= "<img src='".$profile->avatar_https."' width='16' />";
 217                                 $s .= " ".$profile->formatted_username." (".$profile->formatted_service.")";
 218                                 $s .= "</li>";
 219                         }
 220                         $s .= "</ul>";
 221                         $s .= '</div><div class="clear"></div>';
 222                 }
 223
 224         }
 225
 226         $s .= '</div><div class="clear"></div>';
 227
 228         /* provide a submit button */
 229
 230         $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>';
 231 }
 232
 233
 234 function buffer_settings_post(App $a, array &$b)
 235 {
 236         if (!empty($_POST['buffer-submit'])) {
 237                 if (!empty($_POST['buffer_delete'])) {
 238                         DI::pConfig()->set(local_user(), 'buffer', 'access_token'   , '');
 239                         DI::pConfig()->set(local_user(), 'buffer', 'post'           , false);
 240                         DI::pConfig()->set(local_user(), 'buffer', 'post_by_default', false);
 241                 } else {
 242                         DI::pConfig()->set(local_user(), 'buffer', 'post'           , intval($_POST['buffer'] ?? false));
 243                         DI::pConfig()->set(local_user(), 'buffer', 'post_by_default', intval($_POST['buffer_bydefault'] ?? false));
 244                 }
 245         }
 246 }
 247
 248 function buffer_post_local(App $a, array &$b)
 249 {
 250         if (!local_user() || (local_user() != $b['uid'])) {
 251                 return;
 252         }
 253
 254         $buffer_post   = intval(DI::pConfig()->get(local_user(),'buffer','post'));
 255
 256         $buffer_enable = (($buffer_post && !empty($_REQUEST['buffer_enable'])) ? intval($_REQUEST['buffer_enable']) : 0);
 257
 258         if ($b['api_source'] && intval(DI::pConfig()->get(local_user(),'buffer','post_by_default'))) {
 259                 $buffer_enable = 1;
 260         }
 261
 262         if (!$buffer_enable) {
 263                 return;
 264         }
 265
 266         if (strlen($b['postopts'])) {
 267                 $b['postopts'] .= ',';
 268         }
 269
 270         $b['postopts'] .= 'buffer';
 271 }
 272
 273 function buffer_hook_fork(&$a, &$b)
 274 {
 275         if ($b['name'] != 'notifier_normal') {
 276                 return;
 277         }
 278
 279         $post = $b['data'];
 280
 281         if ($post['deleted'] || $post['private'] || ($post['created'] !== $post['edited']) ||
 282                 !strstr($post['postopts'], 'buffer') || ($post['parent'] != $post['id'])) {
 283                 $b['execute'] = false;
 284                 return;
 285         }
 286 }
 287
 288 function buffer_send(App $a, array &$b)
 289 {
 290         if ($b['deleted'] || $b['private'] || ($b['created'] !== $b['edited'])) {
 291                 return;
 292         }
 293
 294         if (!strstr($b['postopts'],'buffer')) {
 295                 return;
 296         }
 297
 298         if ($b['parent'] != $b['id']) {
 299                 return;
 300         }
 301
 302         // Dont't post if the post doesn't belong to us.
 303         // This is a check for forum postings
 304         $self = DBA::selectFirst('contact', ['id'], ['uid' => $b['uid'], 'self' => true]);
 305         if ($b['contact-id'] != $self['id']) {
 306                 return;
 307         }
 308
 309         // if post comes from buffer don't send it back
 310         //if($b['app'] == "Buffer")
 311         //      return;
 312
 313         $client_id = Config::get("buffer", "client_id");
 314         $client_secret = Config::get("buffer", "client_secret");
 315         $access_token = DI::pConfig()->get($b['uid'], "buffer","access_token");
 316         $callback_url = "";
 317
 318         if ($access_token) {
 319                 $buffer = new BufferApp($client_id, $client_secret, $callback_url, $access_token);
 320
 321                 $profiles = $buffer->go('/profiles');
 322                 if (is_array($profiles)) {
 323                         Logger::log("Will send these parameter ".print_r($b, true), Logger::DEBUG);
 324
 325                         foreach ($profiles as $profile) {
 326                                 if (!$profile->default)
 327                                         continue;
 328
 329                                 $send = false;
 330
 331                                 switch ($profile->service) {
 332                                         case 'facebook':
 333                                                 $send = ($b["extid"] != Protocol::FACEBOOK);
 334                                                 $limit = 0;
 335                                                 $includedlinks = false;
 336                                                 $htmlmode = 9;
 337                                                 break;
 338
 339                                         case 'twitter':
 340                                                 $send = ($b["extid"] != Protocol::TWITTER);
 341                                                 $limit = 280;
 342                                                 $includedlinks = true;
 343                                                 $htmlmode = 8;
 344                                                 break;
 345
 346                                         case 'linkedin':
 347                                                 $send = ($b["extid"] != Protocol::LINKEDIN);
 348                                                 $limit = 700;
 349                                                 $includedlinks = true;
 350                                                 $htmlmode = 2;
 351                                                 break;
 352                                 }
 353
 354                                 if (!$send)
 355                                         continue;
 356
 357                                 $item = $b;
 358
 359                                 $post = ItemContent::getPlaintextPost($item, $limit, $includedlinks, $htmlmode);
 360                                 Logger::log("buffer_send: converted message ".$b["id"]." result: ".print_r($post, true), Logger::DEBUG);
 361
 362                                 // The image proxy is used as a sanitizer. Buffer seems to be really picky about pictures
 363                                 if (isset($post["image"])) {
 364                                         $post["image"] = ProxyUtils::proxifyUrl($post["image"]);
 365                                 }
 366
 367                                 if (isset($post["preview"])) {
 368                                         $post["preview"] = ProxyUtils::proxifyUrl($post["preview"]);
 369                                 }
 370
 371                                 // Seems like a bug to me
 372                                 // Buffer doesn't add links to Twitter (but pictures)
 373                                 if (($profile->service == "twitter") && isset($post["url"]) && ($post["type"] != "photo")) {
 374                                         $post["text"] .= " " . $post["url"];
 375                                 }
 376
 377                                 $message = [];
 378                                 $message["text"] = $post["text"];
 379                                 $message["profile_ids[]"] = $profile->id;
 380                                 $message["shorten"] = false;
 381                                 $message["now"] = true;
 382
 383                                 if (isset($post["title"])) {
 384                                         $message["media[title]"] = $post["title"];
 385                                 }
 386
 387                                 if (isset($post["description"])) {
 388                                         $message["media[description]"] = $post["description"];
 389                                 }
 390
 391                                 if (isset($post["url"]) && ($post["type"] != "photo")) {
 392                                         $message["media[link]"] = $post["url"];
 393                                 }
 394
 395                                 if (isset($post["image"])) {
 396                                         $message["media[picture]"] = $post["image"];
 397
 398                                         if ($post["type"] == "photo") {
 399                                                 $message["media[thumbnail]"] = $post["image"];
 400                                         }
 401                                 }
 402
 403                                 if (isset($post["preview"])) {
 404                                         $message["media[thumbnail]"] = $post["preview"];
 405                                 }
 406
 407                                 //print_r($message);
 408                                 Logger::log("buffer_send: data for message " . $b["id"] . ": " . print_r($message, true), Logger::DEBUG);
 409                                 $ret = $buffer->go('/updates/create', $message);
 410                                 Logger::log("buffer_send: send message " . $b["id"] . " result: " . print_r($ret, true), Logger::DEBUG);
 411                         }
 412                 }
 413         }
 414 }