buffer/buffer.php

   1 <?php
   2 /**
   3  * Name: Buffer Post Connector
   4  * Description: Post to Buffer (Facebook, Google+, LinkedIn, Twitter)
   5  * Version: 0.2
   6  * Author: Michael Vogel <http://pirati.ca/profile/heluecht>
   7  */
   8 require 'addon/buffer/bufferapp.php';
   9
  10 use Friendica\App;
  11 use Friendica\Content\Text\Plaintext;
  12 use Friendica\Core\Addon;
  13 use Friendica\Core\Config;
  14 use Friendica\Core\L10n;
  15 use Friendica\Core\PConfig;
  16 use Friendica\Core\Protocol;
  17 use Friendica\Database\DBA;
  18 use Friendica\Model\ItemContent;
  19 use Friendica\Util\Proxy as ProxyUtils;
  20
  21 function buffer_install()
  22 {
  23         Addon::registerHook('post_local',           'addon/buffer/buffer.php', 'buffer_post_local');
  24         Addon::registerHook('notifier_normal',      'addon/buffer/buffer.php', 'buffer_send');
  25         Addon::registerHook('jot_networks',         'addon/buffer/buffer.php', 'buffer_jot_nets');
  26         Addon::registerHook('connector_settings',      'addon/buffer/buffer.php', 'buffer_settings');
  27         Addon::registerHook('connector_settings_post', 'addon/buffer/buffer.php', 'buffer_settings_post');
  28 }
  29
  30 function buffer_uninstall()
  31 {
  32         Addon::unregisterHook('post_local',              'addon/buffer/buffer.php', 'buffer_post_local');
  33         Addon::unregisterHook('notifier_normal',         'addon/buffer/buffer.php', 'buffer_send');
  34         Addon::unregisterHook('jot_networks',            'addon/buffer/buffer.php', 'buffer_jot_nets');
  35         Addon::unregisterHook('connector_settings',      'addon/buffer/buffer.php', 'buffer_settings');
  36         Addon::unregisterHook('connector_settings_post', 'addon/buffer/buffer.php', 'buffer_settings_post');
  37 }
  38
  39 function buffer_module()
  40 {
  41 }
  42
  43 function buffer_content(App $a)
  44 {
  45         if (! local_user()) {
  46                 notice(L10n::t('Permission denied.') . EOL);
  47                 return '';
  48         }
  49
  50         require_once "mod/settings.php";
  51         settings_init($a);
  52
  53         if (isset($a->argv[1])) {
  54                 switch ($a->argv[1]) {
  55                         case "connect":
  56                                 $o = buffer_connect($a);
  57                                 break;
  58
  59                         default:
  60                                 $o = print_r($a->argv, true);
  61                                 break;
  62                 }
  63         } else {
  64                 $o = buffer_connect($a);
  65         }
  66
  67         return $o;
  68 }
  69
  70 function buffer_addon_admin(App $a, &$o)
  71 {
  72         $t = get_markup_template("admin.tpl", "addon/buffer/");
  73
  74         $o = replace_macros($t, [
  75                 '$submit' => L10n::t('Save Settings'),
  76                 // name, label, value, help, [extra values]
  77                 '$client_id' => ['client_id', L10n::t('Client ID'), Config::get('buffer', 'client_id'), ''],
  78                 '$client_secret' => ['client_secret', L10n::t('Client Secret'), Config::get('buffer', 'client_secret'), ''],
  79         ]);
  80 }
  81
  82 function buffer_addon_admin_post(App $a)
  83 {
  84         $client_id     = ((!empty($_POST['client_id']))     ? notags(trim($_POST['client_id']))     : '');
  85         $client_secret = ((!empty($_POST['client_secret'])) ? notags(trim($_POST['client_secret'])) : '');
  86
  87         Config::set('buffer', 'client_id'    , $client_id);
  88         Config::set('buffer', 'client_secret', $client_secret);
  89
  90         info(L10n::t('Settings updated.'). EOL);
  91 }
  92
  93 function buffer_connect(App $a)
  94 {
  95         if (isset($_REQUEST["error"])) {
  96                 $o = L10n::t('Error when registering buffer connection:')." ".$_REQUEST["error"];
  97                 return $o;
  98         }
  99
 100         // Start a session.  This is necessary to hold on to  a few keys the callback script will also need
 101         session_start();
 102
 103         // Define the needed keys
 104         $client_id = Config::get('buffer','client_id');
 105         $client_secret = Config::get('buffer','client_secret');
 106
 107         // The callback URL is the script that gets called after the user authenticates with buffer
 108         $callback_url = $a->get_baseurl()."/buffer/connect";
 109
 110         $buffer = new BufferApp($client_id, $client_secret, $callback_url);
 111
 112         if (!$buffer->ok) {
 113                 $o .= '<a href="' . $buffer->get_login_url() . '">Connect to Buffer!</a>';
 114         } else {
 115                 logger("buffer_connect: authenticated");
 116                 $o .= L10n::t("You are now authenticated to buffer. ");
 117                 $o .= '<br /><a href="' . $a->get_baseurl() . '/settings/connectors">' . L10n::t("return to the connector page") . '</a>';
 118                 PConfig::set(local_user(), 'buffer','access_token', $buffer->access_token);
 119         }
 120
 121         return $o;
 122 }
 123
 124 function buffer_jot_nets(App $a, &$b)
 125 {
 126         if (!local_user()) {
 127                 return;
 128         }
 129
 130         $buffer_post = PConfig::get(local_user(), 'buffer', 'post');
 131
 132         if (intval($buffer_post) == 1) {
 133                 $buffer_defpost = PConfig::get(local_user(), 'buffer', 'post_by_default');
 134                 $selected = ((intval($buffer_defpost) == 1) ? ' checked="checked" ' : '');
 135                 $b .= '<div class="profile-jot-net"><input type="checkbox" name="buffer_enable"' . $selected . ' value="1" /> '
 136                     . L10n::t('Post to Buffer') . '</div>';
 137         }
 138 }
 139
 140 function buffer_settings(App $a, &$s)
 141 {
 142         if (! local_user()) {
 143                 return;
 144         }
 145
 146         /* Add our stylesheet to the page so we can make our settings look nice */
 147
 148         $a->page['htmlhead'] .= '<link rel="stylesheet"  type="text/css" href="' . $a->get_baseurl() . '/addon/buffer/buffer.css' . '" media="all" />' . "\r\n";
 149
 150         /* Get the current state of our config variables */
 151
 152         $enabled = PConfig::get(local_user(),'buffer','post');
 153         $checked = (($enabled) ? ' checked="checked" ' : '');
 154         $css = (($enabled) ? '' : '-disabled');
 155
 156         $def_enabled = PConfig::get(local_user(),'buffer','post_by_default');
 157         $def_checked = (($def_enabled) ? ' checked="checked" ' : '');
 158
 159         /* Add some HTML to the existing form */
 160
 161         $s .= '<span id="settings_buffer_inflated" class="settings-block fakelink" style="display: block;" onclick="openClose(\'settings_buffer_expanded\'); openClose(\'settings_buffer_inflated\');">';
 162         $s .= '<img class="connector'.$css.'" src="images/buffer.png" /><h3 class="connector">'. L10n::t('Buffer Export').'</h3>';
 163         $s .= '</span>';
 164         $s .= '<div id="settings_buffer_expanded" class="settings-block" style="display: none;">';
 165         $s .= '<span class="fakelink" onclick="openClose(\'settings_buffer_expanded\'); openClose(\'settings_buffer_inflated\');">';
 166         $s .= '<img class="connector'.$css.'" src="images/buffer.png" /><h3 class="connector">'. L10n::t('Buffer Export').'</h3>';
 167         $s .= '</span>';
 168
 169         $client_id = Config::get("buffer", "client_id");
 170         $client_secret = Config::get("buffer", "client_secret");
 171         $access_token = PConfig::get(local_user(), "buffer", "access_token");
 172
 173         $s .= '<div id="buffer-password-wrapper">';
 174
 175         if ($access_token == "") {
 176                 $s .= '<div id="buffer-authenticate-wrapper">';
 177                 $s .= '<a href="'.$a->get_baseurl().'/buffer/connect">'.L10n::t("Authenticate your Buffer connection").'</a>';
 178                 $s .= '</div><div class="clear"></div>';
 179         } else {
 180                 $s .= '<div id="buffer-enable-wrapper">';
 181                 $s .= '<label id="buffer-enable-label" for="buffer-checkbox">' . L10n::t('Enable Buffer Post Addon') . '</label>';
 182                 $s .= '<input id="buffer-checkbox" type="checkbox" name="buffer" value="1" ' . $checked . '/>';
 183                 $s .= '</div><div class="clear"></div>';
 184
 185                 $s .= '<div id="buffer-bydefault-wrapper">';
 186                 $s .= '<label id="buffer-bydefault-label" for="buffer-bydefault">' . L10n::t('Post to Buffer by default') . '</label>';
 187                 $s .= '<input id="buffer-bydefault" type="checkbox" name="buffer_bydefault" value="1" ' . $def_checked . '/>';
 188                 $s .= '</div><div class="clear"></div>';
 189
 190                 $s .= '<div id="buffer-delete-wrapper">';
 191                 $s .= '<label id="buffer-delete-label" for="buffer-delete">' . L10n::t('Check to delete this preset') . '</label>';
 192                 $s .= '<input id="buffer-delete" type="checkbox" name="buffer_delete" value="1" />';
 193                 $s .= '</div><div class="clear"></div>';
 194
 195                 // The callback URL is the script that gets called after the user authenticates with buffer
 196                 $callback_url = $a->get_baseurl() . '/buffer/connect';
 197
 198                 $buffer = new BufferApp($client_id, $client_secret, $callback_url, $access_token);
 199
 200                 $profiles = $buffer->go('/profiles');
 201                 if (is_array($profiles)) {
 202                         $s .= '<div id="buffer-accounts-wrapper">';
 203                         $s .= L10n::t("Posts are going to all accounts that are enabled by default:");
 204                         $s .= "<ul>";
 205                         foreach ($profiles as $profile) {
 206                                 if (!$profile->default)
 207                                         continue;
 208                                 $s .= "<li>";
 209                                 //$s .= "<img src='".$profile->avatar_https."' width='16' />";
 210                                 $s .= " ".$profile->formatted_username." (".$profile->formatted_service.")";
 211                                 $s .= "</li>";
 212                         }
 213                         $s .= "</ul>";
 214                         $s .= '</div><div class="clear"></div>';
 215                 }
 216
 217         }
 218
 219         $s .= '</div><div class="clear"></div>';
 220
 221         /* provide a submit button */
 222
 223         $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>';
 224 }
 225
 226
 227 function buffer_settings_post(App $a, array &$b)
 228 {
 229         if (!empty($_POST['buffer-submit'])) {
 230                 if (!empty($_POST['buffer_delete'])) {
 231                         PConfig::set(local_user(), 'buffer', 'access_token'   , '');
 232                         PConfig::set(local_user(), 'buffer', 'post'           , false);
 233                         PConfig::set(local_user(), 'buffer', 'post_by_default', false);
 234                 } else {
 235                         PConfig::set(local_user(), 'buffer', 'post'           , intval($_POST['buffer']));
 236                         PConfig::set(local_user(), 'buffer', 'post_by_default', intval($_POST['buffer_bydefault']));
 237                 }
 238         }
 239 }
 240
 241 function buffer_post_local(App $a, array &$b)
 242 {
 243         if (!local_user() || (local_user() != $b['uid'])) {
 244                 return;
 245         }
 246
 247         $buffer_post   = intval(PConfig::get(local_user(),'buffer','post'));
 248
 249         $buffer_enable = (($buffer_post && !empty($_REQUEST['buffer_enable'])) ? intval($_REQUEST['buffer_enable']) : 0);
 250
 251         if ($b['api_source'] && intval(PConfig::get(local_user(),'buffer','post_by_default'))) {
 252                 $buffer_enable = 1;
 253         }
 254
 255         if (!$buffer_enable) {
 256                 return;
 257         }
 258
 259         if (strlen($b['postopts'])) {
 260                 $b['postopts'] .= ',';
 261         }
 262
 263         $b['postopts'] .= 'buffer';
 264 }
 265
 266 function buffer_send(App $a, array &$b)
 267 {
 268         if ($b['deleted'] || $b['private'] || ($b['created'] !== $b['edited'])) {
 269                 return;
 270         }
 271
 272         if (!strstr($b['postopts'],'buffer')) {
 273                 return;
 274         }
 275
 276         if ($b['parent'] != $b['id']) {
 277                 return;
 278         }
 279
 280         // Dont't post if the post doesn't belong to us.
 281         // This is a check for forum postings
 282         $self = DBA::selectFirst('contact', ['id'], ['uid' => $b['uid'], 'self' => true]);
 283         if ($b['contact-id'] != $self['id']) {
 284                 return;
 285         }
 286
 287         // if post comes from buffer don't send it back
 288         //if($b['app'] == "Buffer")
 289         //      return;
 290
 291         $client_id = Config::get("buffer", "client_id");
 292         $client_secret = Config::get("buffer", "client_secret");
 293         $access_token = PConfig::get($b['uid'], "buffer","access_token");
 294         $callback_url = "";
 295
 296         if ($access_token) {
 297                 $buffer = new BufferApp($client_id, $client_secret, $callback_url, $access_token);
 298
 299                 $profiles = $buffer->go('/profiles');
 300                 if (is_array($profiles)) {
 301                         logger("Will send these parameter ".print_r($b, true), LOGGER_DEBUG);
 302
 303                         foreach ($profiles as $profile) {
 304                                 if (!$profile->default)
 305                                         continue;
 306
 307                                 $send = false;
 308
 309                                 switch ($profile->service) {
 310                                         case 'facebook':
 311                                                 $send = ($b["extid"] != Protocol::FACEBOOK);
 312                                                 $limit = 0;
 313                                                 $markup = false;
 314                                                 $includedlinks = false;
 315                                                 $htmlmode = 9;
 316                                                 break;
 317
 318                                         case 'google':
 319                                                 $send = ($b["extid"] != Protocol::GPLUS);
 320                                                 $limit = 0;
 321                                                 $markup = true;
 322                                                 $includedlinks = false;
 323                                                 $htmlmode = 9;
 324                                                 break;
 325
 326                                         case 'twitter':
 327                                                 $send = ($b["extid"] != Protocol::TWITTER);
 328                                                 $limit = 280;
 329                                                 $markup = false;
 330                                                 $includedlinks = true;
 331                                                 $htmlmode = 8;
 332                                                 break;
 333
 334                                         case 'linkedin':
 335                                                 $send = ($b["extid"] != Protocol::LINKEDIN);
 336                                                 $limit = 700;
 337                                                 $markup = false;
 338                                                 $includedlinks = true;
 339                                                 $htmlmode = 2;
 340                                                 break;
 341                                 }
 342
 343                                 if (!$send)
 344                                         continue;
 345
 346                                 $item = $b;
 347
 348                                 // Markup for Google+
 349                                 if ($markup) {
 350                                         if ($item["title"] != "") {
 351                                                 $item["title"] = "*" . $item["title"] . "*";
 352                                         }
 353
 354                                         $item["body"] = preg_replace("(\[b\](.*?)\[\/b\])ism", '*$1*', $item["body"]);
 355                                         $item["body"] = preg_replace("(\[i\](.*?)\[\/i\])ism", '_$1_', $item["body"]);
 356                                         $item["body"] = preg_replace("(\[s\](.*?)\[\/s\])ism", '-$1-', $item["body"]);
 357                                 }
 358
 359                                 $post = ItemContent::getPlaintextPost($item, $limit, $includedlinks, $htmlmode);
 360                                 logger("buffer_send: converted message ".$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"] .= " " . $post["url"];
 375                                 } elseif ($profile->service == "google") {
 376                                         $post["text"] .= html_entity_decode("&#x00A0;", ENT_QUOTES, 'UTF-8'); // Send a special blank to identify the post through the "fromgplus" addon
 377                                 }
 378
 379                                 $message = [];
 380                                 $message["text"] = $post["text"];
 381                                 $message["profile_ids[]"] = $profile->id;
 382                                 $message["shorten"] = false;
 383                                 $message["now"] = true;
 384
 385                                 if (isset($post["title"])) {
 386                                         $message["media[title]"] = $post["title"];
 387                                 }
 388
 389                                 if (isset($post["description"])) {
 390                                         $message["media[description]"] = $post["description"];
 391                                 }
 392
 393                                 if (isset($post["url"]) && ($post["type"] != "photo")) {
 394                                         $message["media[link]"] = $post["url"];
 395                                 }
 396
 397                                 if (isset($post["image"])) {
 398                                         $message["media[picture]"] = $post["image"];
 399
 400                                         if ($post["type"] == "photo") {
 401                                                 $message["media[thumbnail]"] = $post["image"];
 402                                         }
 403                                 }
 404
 405                                 if (isset($post["preview"])) {
 406                                         $message["media[thumbnail]"] = $post["preview"];
 407                                 }
 408
 409                                 //print_r($message);
 410                                 logger("buffer_send: data for message " . $b["id"] . ": " . print_r($message, true), LOGGER_DEBUG);
 411                                 $ret = $buffer->go('/updates/create', $message);
 412                                 logger("buffer_send: send message " . $b["id"] . " result: " . print_r($ret, true), LOGGER_DEBUG);
 413                         }
 414                 }
 415         }
 416 }