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\PConfig;
  17 use Friendica\Core\Protocol;
  18 use Friendica\Core\Renderer;
  19 use Friendica\Database\DBA;
  20 use Friendica\DI;
  21 use Friendica\Model\ItemContent;
  22 use Friendica\Util\Proxy as ProxyUtils;
  23 use Friendica\Util\Strings;
  24
  25 function buffer_install()
  26 {
  27         Hook::register('hook_fork',            'addon/buffer/buffer.php', 'buffer_hook_fork');
  28         Hook::register('post_local',           'addon/buffer/buffer.php', 'buffer_post_local');
  29         Hook::register('notifier_normal',      'addon/buffer/buffer.php', 'buffer_send');
  30         Hook::register('jot_networks',         'addon/buffer/buffer.php', 'buffer_jot_nets');
  31         Hook::register('connector_settings',      'addon/buffer/buffer.php', 'buffer_settings');
  32         Hook::register('connector_settings_post', 'addon/buffer/buffer.php', 'buffer_settings_post');
  33 }
  34
  35 function buffer_uninstall()
  36 {
  37         Hook::unregister('hook_fork',               'addon/buffer/buffer.php', 'buffer_hook_fork');
  38         Hook::unregister('post_local',              'addon/buffer/buffer.php', 'buffer_post_local');
  39         Hook::unregister('notifier_normal',         'addon/buffer/buffer.php', 'buffer_send');
  40         Hook::unregister('jot_networks',            'addon/buffer/buffer.php', 'buffer_jot_nets');
  41         Hook::unregister('connector_settings',      'addon/buffer/buffer.php', 'buffer_settings');
  42         Hook::unregister('connector_settings_post', 'addon/buffer/buffer.php', 'buffer_settings_post');
  43 }
  44
  45 function buffer_module()
  46 {
  47 }
  48
  49 function buffer_content(App $a)
  50 {
  51         if (! local_user()) {
  52                 notice(L10n::t('Permission denied.') . EOL);
  53                 return '';
  54         }
  55
  56         require_once "mod/settings.php";
  57         settings_init($a);
  58
  59         if (isset($a->argv[1])) {
  60                 switch ($a->argv[1]) {
  61                         case "connect":
  62                                 $o = buffer_connect($a);
  63                                 break;
  64
  65                         default:
  66                                 $o = print_r($a->argv, true);
  67                                 break;
  68                 }
  69         } else {
  70                 $o = buffer_connect($a);
  71         }
  72
  73         return $o;
  74 }
  75
  76 function buffer_addon_admin(App $a, &$o)
  77 {
  78         $t = Renderer::getMarkupTemplate("admin.tpl", "addon/buffer/");
  79
  80         $o = Renderer::replaceMacros($t, [
  81                 '$submit' => L10n::t('Save Settings'),
  82                 // name, label, value, help, [extra values]
  83                 '$client_id' => ['client_id', L10n::t('Client ID'), Config::get('buffer', 'client_id'), ''],
  84                 '$client_secret' => ['client_secret', L10n::t('Client Secret'), Config::get('buffer', 'client_secret'), ''],
  85         ]);
  86 }
  87
  88 function buffer_addon_admin_post(App $a)
  89 {
  90         $client_id     = (!empty($_POST['client_id'])     ? Strings::escapeTags(trim($_POST['client_id']))     : '');
  91         $client_secret = (!empty($_POST['client_secret']) ? Strings::escapeTags(trim($_POST['client_secret'])) : '');
  92
  93         Config::set('buffer', 'client_id'    , $client_id);
  94         Config::set('buffer', 'client_secret', $client_secret);
  95
  96         info(L10n::t('Settings updated.'). EOL);
  97 }
  98
  99 function buffer_connect(App $a)
 100 {
 101         if (isset($_REQUEST["error"])) {
 102                 $o = L10n::t('Error when registering buffer connection:')." ".$_REQUEST["error"];
 103                 return $o;
 104         }
 105
 106         // Start a session.  This is necessary to hold on to  a few keys the callback script will also need
 107         session_start();
 108
 109         // Define the needed keys
 110         $client_id = Config::get('buffer','client_id');
 111         $client_secret = Config::get('buffer','client_secret');
 112
 113         // The callback URL is the script that gets called after the user authenticates with buffer
 114         $callback_url = DI::baseUrl()->get()."/buffer/connect";
 115
 116         $buffer = new BufferApp($client_id, $client_secret, $callback_url);
 117
 118         if (!$buffer->ok) {
 119                 $o = '<a href="' . $buffer->get_login_url() . '">Connect to Buffer!</a>';
 120         } else {
 121                 Logger::log("buffer_connect: authenticated");
 122                 $o = L10n::t("You are now authenticated to buffer. ");
 123                 $o .= '<br /><a href="' . DI::baseUrl()->get() . '/settings/connectors">' . L10n::t("return to the connector page") . '</a>';
 124                 PConfig::set(local_user(), 'buffer','access_token', $buffer->access_token);
 125         }
 126
 127         return $o;
 128 }
 129
 130 function buffer_jot_nets(App $a, array &$jotnets_fields)
 131 {
 132         if (!local_user()) {
 133                 return;
 134         }
 135
 136         if (PConfig::get(local_user(), 'buffer', 'post')) {
 137                 $jotnets_fields[] = [
 138                         'type' => 'checkbox',
 139                         'field' => [
 140                                 'buffer_enable',
 141                                 L10n::t('Post to Buffer'),
 142                                 PConfig::get(local_user(), 'buffer', 'post_by_default')
 143                         ]
 144                 ];
 145         }
 146 }
 147
 148 function buffer_settings(App $a, &$s)
 149 {
 150         if (! local_user()) {
 151                 return;
 152         }
 153
 154         /* Add our stylesheet to the page so we can make our settings look nice */
 155
 156         DI::page()['htmlhead'] .= '<link rel="stylesheet"  type="text/css" href="' . DI::baseUrl()->get() . '/addon/buffer/buffer.css' . '" media="all" />' . "\r\n";
 157
 158         /* Get the current state of our config variables */
 159
 160         $enabled = PConfig::get(local_user(),'buffer','post');
 161         $checked = (($enabled) ? ' checked="checked" ' : '');
 162         $css = (($enabled) ? '' : '-disabled');
 163
 164         $def_enabled = PConfig::get(local_user(),'buffer','post_by_default');
 165         $def_checked = (($def_enabled) ? ' checked="checked" ' : '');
 166
 167         /* Add some HTML to the existing form */
 168
 169         $s .= '<span id="settings_buffer_inflated" class="settings-block fakelink" style="display: block;" onclick="openClose(\'settings_buffer_expanded\'); openClose(\'settings_buffer_inflated\');">';
 170         $s .= '<img class="connector'.$css.'" src="images/buffer.png" /><h3 class="connector">'. L10n::t('Buffer Export').'</h3>';
 171         $s .= '</span>';
 172         $s .= '<div id="settings_buffer_expanded" class="settings-block" style="display: none;">';
 173         $s .= '<span class="fakelink" onclick="openClose(\'settings_buffer_expanded\'); openClose(\'settings_buffer_inflated\');">';
 174         $s .= '<img class="connector'.$css.'" src="images/buffer.png" /><h3 class="connector">'. L10n::t('Buffer Export').'</h3>';
 175         $s .= '</span>';
 176
 177         $client_id = Config::get("buffer", "client_id");
 178         $client_secret = Config::get("buffer", "client_secret");
 179         $access_token = PConfig::get(local_user(), "buffer", "access_token");
 180
 181         $s .= '<div id="buffer-password-wrapper">';
 182
 183         if ($access_token == "") {
 184                 $s .= '<div id="buffer-authenticate-wrapper">';
 185                 $s .= '<a href="'.DI::baseUrl()->get().'/buffer/connect">'.L10n::t("Authenticate your Buffer connection").'</a>';
 186                 $s .= '</div><div class="clear"></div>';
 187         } else {
 188                 $s .= '<div id="buffer-enable-wrapper">';
 189                 $s .= '<label id="buffer-enable-label" for="buffer-checkbox">' . L10n::t('Enable Buffer Post Addon') . '</label>';
 190                 $s .= '<input id="buffer-checkbox" type="checkbox" name="buffer" value="1" ' . $checked . '/>';
 191                 $s .= '</div><div class="clear"></div>';
 192
 193                 $s .= '<div id="buffer-bydefault-wrapper">';
 194                 $s .= '<label id="buffer-bydefault-label" for="buffer-bydefault">' . L10n::t('Post to Buffer by default') . '</label>';
 195                 $s .= '<input id="buffer-bydefault" type="checkbox" name="buffer_bydefault" value="1" ' . $def_checked . '/>';
 196                 $s .= '</div><div class="clear"></div>';
 197
 198                 $s .= '<div id="buffer-delete-wrapper">';
 199                 $s .= '<label id="buffer-delete-label" for="buffer-delete">' . L10n::t('Check to delete this preset') . '</label>';
 200                 $s .= '<input id="buffer-delete" type="checkbox" name="buffer_delete" value="1" />';
 201                 $s .= '</div><div class="clear"></div>';
 202
 203                 // The callback URL is the script that gets called after the user authenticates with buffer
 204                 $callback_url = DI::baseUrl()->get() . '/buffer/connect';
 205
 206                 $buffer = new BufferApp($client_id, $client_secret, $callback_url, $access_token);
 207
 208                 $profiles = $buffer->go('/profiles');
 209                 if (is_array($profiles)) {
 210                         $s .= '<div id="buffer-accounts-wrapper">';
 211                         $s .= L10n::t("Posts are going to all accounts that are enabled by default:");
 212                         $s .= "<ul>";
 213                         foreach ($profiles as $profile) {
 214                                 if (!$profile->default)
 215                                         continue;
 216                                 $s .= "<li>";
 217                                 //$s .= "<img src='".$profile->avatar_https."' width='16' />";
 218                                 $s .= " ".$profile->formatted_username." (".$profile->formatted_service.")";
 219                                 $s .= "</li>";
 220                         }
 221                         $s .= "</ul>";
 222                         $s .= '</div><div class="clear"></div>';
 223                 }
 224
 225         }
 226
 227         $s .= '</div><div class="clear"></div>';
 228
 229         /* provide a submit button */
 230
 231         $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>';
 232 }
 233
 234
 235 function buffer_settings_post(App $a, array &$b)
 236 {
 237         if (!empty($_POST['buffer-submit'])) {
 238                 if (!empty($_POST['buffer_delete'])) {
 239                         PConfig::set(local_user(), 'buffer', 'access_token'   , '');
 240                         PConfig::set(local_user(), 'buffer', 'post'           , false);
 241                         PConfig::set(local_user(), 'buffer', 'post_by_default', false);
 242                 } else {
 243                         PConfig::set(local_user(), 'buffer', 'post'           , intval($_POST['buffer'] ?? false));
 244                         PConfig::set(local_user(), 'buffer', 'post_by_default', intval($_POST['buffer_bydefault'] ?? false));
 245                 }
 246         }
 247 }
 248
 249 function buffer_post_local(App $a, array &$b)
 250 {
 251         if (!local_user() || (local_user() != $b['uid'])) {
 252                 return;
 253         }
 254
 255         $buffer_post   = intval(PConfig::get(local_user(),'buffer','post'));
 256
 257         $buffer_enable = (($buffer_post && !empty($_REQUEST['buffer_enable'])) ? intval($_REQUEST['buffer_enable']) : 0);
 258
 259         if ($b['api_source'] && intval(PConfig::get(local_user(),'buffer','post_by_default'))) {
 260                 $buffer_enable = 1;
 261         }
 262
 263         if (!$buffer_enable) {
 264                 return;
 265         }
 266
 267         if (strlen($b['postopts'])) {
 268                 $b['postopts'] .= ',';
 269         }
 270
 271         $b['postopts'] .= 'buffer';
 272 }
 273
 274 function buffer_hook_fork(&$a, &$b)
 275 {
 276         if ($b['name'] != 'notifier_normal') {
 277                 return;
 278         }
 279
 280         $post = $b['data'];
 281
 282         if ($post['deleted'] || $post['private'] || ($post['created'] !== $post['edited']) ||
 283                 !strstr($post['postopts'], 'buffer') || ($post['parent'] != $post['id'])) {
 284                 $b['execute'] = false;
 285                 return;
 286         }
 287 }
 288
 289 function buffer_send(App $a, array &$b)
 290 {
 291         if ($b['deleted'] || $b['private'] || ($b['created'] !== $b['edited'])) {
 292                 return;
 293         }
 294
 295         if (!strstr($b['postopts'],'buffer')) {
 296                 return;
 297         }
 298
 299         if ($b['parent'] != $b['id']) {
 300                 return;
 301         }
 302
 303         // Dont't post if the post doesn't belong to us.
 304         // This is a check for forum postings
 305         $self = DBA::selectFirst('contact', ['id'], ['uid' => $b['uid'], 'self' => true]);
 306         if ($b['contact-id'] != $self['id']) {
 307                 return;
 308         }
 309
 310         // if post comes from buffer don't send it back
 311         //if($b['app'] == "Buffer")
 312         //      return;
 313
 314         $client_id = Config::get("buffer", "client_id");
 315         $client_secret = Config::get("buffer", "client_secret");
 316         $access_token = PConfig::get($b['uid'], "buffer","access_token");
 317         $callback_url = "";
 318
 319         if ($access_token) {
 320                 $buffer = new BufferApp($client_id, $client_secret, $callback_url, $access_token);
 321
 322                 $profiles = $buffer->go('/profiles');
 323                 if (is_array($profiles)) {
 324                         Logger::log("Will send these parameter ".print_r($b, true), Logger::DEBUG);
 325
 326                         foreach ($profiles as $profile) {
 327                                 if (!$profile->default)
 328                                         continue;
 329
 330                                 $send = false;
 331
 332                                 switch ($profile->service) {
 333                                         case 'facebook':
 334                                                 $send = ($b["extid"] != Protocol::FACEBOOK);
 335                                                 $limit = 0;
 336                                                 $includedlinks = false;
 337                                                 $htmlmode = 9;
 338                                                 break;
 339
 340                                         case 'twitter':
 341                                                 $send = ($b["extid"] != Protocol::TWITTER);
 342                                                 $limit = 280;
 343                                                 $includedlinks = true;
 344                                                 $htmlmode = 8;
 345                                                 break;
 346
 347                                         case 'linkedin':
 348                                                 $send = ($b["extid"] != Protocol::LINKEDIN);
 349                                                 $limit = 700;
 350                                                 $includedlinks = true;
 351                                                 $htmlmode = 2;
 352                                                 break;
 353                                 }
 354
 355                                 if (!$send)
 356                                         continue;
 357
 358                                 $item = $b;
 359
 360                                 $post = ItemContent::getPlaintextPost($item, $limit, $includedlinks, $htmlmode);
 361                                 Logger::log("buffer_send: converted message ".$b["id"]." result: ".print_r($post, true), Logger::DEBUG);
 362
 363                                 // The image proxy is used as a sanitizer. Buffer seems to be really picky about pictures
 364                                 if (isset($post["image"])) {
 365                                         $post["image"] = ProxyUtils::proxifyUrl($post["image"]);
 366                                 }
 367
 368                                 if (isset($post["preview"])) {
 369                                         $post["preview"] = ProxyUtils::proxifyUrl($post["preview"]);
 370                                 }
 371
 372                                 // Seems like a bug to me
 373                                 // Buffer doesn't add links to Twitter (but pictures)
 374                                 if (($profile->service == "twitter") && isset($post["url"]) && ($post["type"] != "photo")) {
 375                                         $post["text"] .= " " . $post["url"];
 376                                 }
 377
 378                                 $message = [];
 379                                 $message["text"] = $post["text"];
 380                                 $message["profile_ids[]"] = $profile->id;
 381                                 $message["shorten"] = false;
 382                                 $message["now"] = true;
 383
 384                                 if (isset($post["title"])) {
 385                                         $message["media[title]"] = $post["title"];
 386                                 }
 387
 388                                 if (isset($post["description"])) {
 389                                         $message["media[description]"] = $post["description"];
 390                                 }
 391
 392                                 if (isset($post["url"]) && ($post["type"] != "photo")) {
 393                                         $message["media[link]"] = $post["url"];
 394                                 }
 395
 396                                 if (isset($post["image"])) {
 397                                         $message["media[picture]"] = $post["image"];
 398
 399                                         if ($post["type"] == "photo") {
 400                                                 $message["media[thumbnail]"] = $post["image"];
 401                                         }
 402                                 }
 403
 404                                 if (isset($post["preview"])) {
 405                                         $message["media[thumbnail]"] = $post["preview"];
 406                                 }
 407
 408                                 //print_r($message);
 409                                 Logger::log("buffer_send: data for message " . $b["id"] . ": " . print_r($message, true), Logger::DEBUG);
 410                                 $ret = $buffer->go('/updates/create', $message);
 411                                 Logger::log("buffer_send: send message " . $b["id"] . " result: " . print_r($ret, true), Logger::DEBUG);
 412                         }
 413                 }
 414         }
 415 }