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\Hook;
  13 use Friendica\Core\Logger;
  14 use Friendica\Core\Protocol;
  15 use Friendica\Core\Renderer;
  16 use Friendica\Database\DBA;
  17 use Friendica\DI;
  18 use Friendica\Model\ItemContent;
  19 use Friendica\Util\Proxy as ProxyUtils;
  20 use Friendica\Util\Strings;
  21
  22 function buffer_install()
  23 {
  24         Hook::register('hook_fork',            'addon/buffer/buffer.php', 'buffer_hook_fork');
  25         Hook::register('post_local',           'addon/buffer/buffer.php', 'buffer_post_local');
  26         Hook::register('notifier_normal',      'addon/buffer/buffer.php', 'buffer_send');
  27         Hook::register('jot_networks',         'addon/buffer/buffer.php', 'buffer_jot_nets');
  28         Hook::register('connector_settings',      'addon/buffer/buffer.php', 'buffer_settings');
  29         Hook::register('connector_settings_post', 'addon/buffer/buffer.php', 'buffer_settings_post');
  30 }
  31
  32 function buffer_uninstall()
  33 {
  34         Hook::unregister('hook_fork',               'addon/buffer/buffer.php', 'buffer_hook_fork');
  35         Hook::unregister('post_local',              'addon/buffer/buffer.php', 'buffer_post_local');
  36         Hook::unregister('notifier_normal',         'addon/buffer/buffer.php', 'buffer_send');
  37         Hook::unregister('jot_networks',            'addon/buffer/buffer.php', 'buffer_jot_nets');
  38         Hook::unregister('connector_settings',      'addon/buffer/buffer.php', 'buffer_settings');
  39         Hook::unregister('connector_settings_post', 'addon/buffer/buffer.php', 'buffer_settings_post');
  40 }
  41
  42 function buffer_module()
  43 {
  44 }
  45
  46 function buffer_content(App $a)
  47 {
  48         if (! local_user()) {
  49                 notice(DI::l10n()->t('Permission denied.') . EOL);
  50                 return '';
  51         }
  52
  53         require_once "mod/settings.php";
  54         settings_init($a);
  55
  56         if (isset($a->argv[1])) {
  57                 switch ($a->argv[1]) {
  58                         case "connect":
  59                                 $o = buffer_connect($a);
  60                                 break;
  61
  62                         default:
  63                                 $o = print_r($a->argv, true);
  64                                 break;
  65                 }
  66         } else {
  67                 $o = buffer_connect($a);
  68         }
  69
  70         return $o;
  71 }
  72
  73 function buffer_addon_admin(App $a, &$o)
  74 {
  75         $t = Renderer::getMarkupTemplate("admin.tpl", "addon/buffer/");
  76
  77         $o = Renderer::replaceMacros($t, [
  78                 '$submit' => DI::l10n()->t('Save Settings'),
  79                 // name, label, value, help, [extra values]
  80                 '$client_id' => ['client_id', DI::l10n()->t('Client ID'), DI::config()->get('buffer', 'client_id'), ''],
  81                 '$client_secret' => ['client_secret', DI::l10n()->t('Client Secret'), DI::config()->get('buffer', 'client_secret'), ''],
  82         ]);
  83 }
  84
  85 function buffer_addon_admin_post(App $a)
  86 {
  87         $client_id     = (!empty($_POST['client_id'])     ? Strings::escapeTags(trim($_POST['client_id']))     : '');
  88         $client_secret = (!empty($_POST['client_secret']) ? Strings::escapeTags(trim($_POST['client_secret'])) : '');
  89
  90         DI::config()->set('buffer', 'client_id'    , $client_id);
  91         DI::config()->set('buffer', 'client_secret', $client_secret);
  92 }
  93
  94 function buffer_connect(App $a)
  95 {
  96         if (isset($_REQUEST["error"])) {
  97                 $o = DI::l10n()->t('Error when registering buffer connection:')." ".$_REQUEST["error"];
  98                 return $o;
  99         }
 100
 101         // Start a session.  This is necessary to hold on to  a few keys the callback script will also need
 102         session_start();
 103
 104         // Define the needed keys
 105         $client_id = DI::config()->get('buffer','client_id');
 106         $client_secret = DI::config()->get('buffer','client_secret');
 107
 108         // The callback URL is the script that gets called after the user authenticates with buffer
 109         $callback_url = DI::baseUrl()->get()."/buffer/connect";
 110
 111         $buffer = new BufferApp($client_id, $client_secret, $callback_url);
 112
 113         if (!$buffer->ok) {
 114                 $o = '<a href="' . $buffer->get_login_url() . '">Connect to Buffer!</a>';
 115         } else {
 116                 Logger::log("buffer_connect: authenticated");
 117                 $o = DI::l10n()->t("You are now authenticated to buffer. ");
 118                 $o .= '<br /><a href="' . DI::baseUrl()->get() . '/settings/connectors">' . DI::l10n()->t("return to the connector page") . '</a>';
 119                 DI::pConfig()->set(local_user(), 'buffer','access_token', $buffer->access_token);
 120         }
 121
 122         return $o;
 123 }
 124
 125 function buffer_jot_nets(App $a, array &$jotnets_fields)
 126 {
 127         if (!local_user()) {
 128                 return;
 129         }
 130
 131         if (DI::pConfig()->get(local_user(), 'buffer', 'post')) {
 132                 $jotnets_fields[] = [
 133                         'type' => 'checkbox',
 134                         'field' => [
 135                                 'buffer_enable',
 136                                 DI::l10n()->t('Post to Buffer'),
 137                                 DI::pConfig()->get(local_user(), 'buffer', 'post_by_default')
 138                         ]
 139                 ];
 140         }
 141 }
 142
 143 function buffer_settings(App $a, &$s)
 144 {
 145         if (! local_user()) {
 146                 return;
 147         }
 148
 149         /* Add our stylesheet to the page so we can make our settings look nice */
 150
 151         DI::page()['htmlhead'] .= '<link rel="stylesheet"  type="text/css" href="' . DI::baseUrl()->get() . '/addon/buffer/buffer.css' . '" media="all" />' . "\r\n";
 152
 153         /* Get the current state of our config variables */
 154
 155         $enabled = DI::pConfig()->get(local_user(),'buffer','post');
 156         $checked = (($enabled) ? ' checked="checked" ' : '');
 157         $css = (($enabled) ? '' : '-disabled');
 158
 159         $def_enabled = DI::pConfig()->get(local_user(),'buffer','post_by_default');
 160         $def_checked = (($def_enabled) ? ' checked="checked" ' : '');
 161
 162         /* Add some HTML to the existing form */
 163
 164         $s .= '<span id="settings_buffer_inflated" class="settings-block fakelink" style="display: block;" onclick="openClose(\'settings_buffer_expanded\'); openClose(\'settings_buffer_inflated\');">';
 165         $s .= '<img class="connector'.$css.'" src="images/buffer.png" /><h3 class="connector">'. DI::l10n()->t('Buffer Export').'</h3>';
 166         $s .= '</span>';
 167         $s .= '<div id="settings_buffer_expanded" class="settings-block" style="display: none;">';
 168         $s .= '<span class="fakelink" onclick="openClose(\'settings_buffer_expanded\'); openClose(\'settings_buffer_inflated\');">';
 169         $s .= '<img class="connector'.$css.'" src="images/buffer.png" /><h3 class="connector">'. DI::l10n()->t('Buffer Export').'</h3>';
 170         $s .= '</span>';
 171
 172         $client_id = DI::config()->get("buffer", "client_id");
 173         $client_secret = DI::config()->get("buffer", "client_secret");
 174         $access_token = DI::pConfig()->get(local_user(), "buffer", "access_token");
 175
 176         $s .= '<div id="buffer-password-wrapper">';
 177
 178         if ($access_token == "") {
 179                 $s .= '<div id="buffer-authenticate-wrapper">';
 180                 $s .= '<a href="'.DI::baseUrl()->get().'/buffer/connect">'.DI::l10n()->t("Authenticate your Buffer connection").'</a>';
 181                 $s .= '</div><div class="clear"></div>';
 182         } else {
 183                 $s .= '<div id="buffer-enable-wrapper">';
 184                 $s .= '<label id="buffer-enable-label" for="buffer-checkbox">' . DI::l10n()->t('Enable Buffer Post Addon') . '</label>';
 185                 $s .= '<input id="buffer-checkbox" type="checkbox" name="buffer" value="1" ' . $checked . '/>';
 186                 $s .= '</div><div class="clear"></div>';
 187
 188                 $s .= '<div id="buffer-bydefault-wrapper">';
 189                 $s .= '<label id="buffer-bydefault-label" for="buffer-bydefault">' . DI::l10n()->t('Post to Buffer by default') . '</label>';
 190                 $s .= '<input id="buffer-bydefault" type="checkbox" name="buffer_bydefault" value="1" ' . $def_checked . '/>';
 191                 $s .= '</div><div class="clear"></div>';
 192
 193                 $s .= '<div id="buffer-delete-wrapper">';
 194                 $s .= '<label id="buffer-delete-label" for="buffer-delete">' . DI::l10n()->t('Check to delete this preset') . '</label>';
 195                 $s .= '<input id="buffer-delete" type="checkbox" name="buffer_delete" value="1" />';
 196                 $s .= '</div><div class="clear"></div>';
 197
 198                 // The callback URL is the script that gets called after the user authenticates with buffer
 199                 $callback_url = DI::baseUrl()->get() . '/buffer/connect';
 200
 201                 $buffer = new BufferApp($client_id, $client_secret, $callback_url, $access_token);
 202
 203                 $profiles = $buffer->go('/profiles');
 204                 if (is_array($profiles)) {
 205                         $s .= '<div id="buffer-accounts-wrapper">';
 206                         $s .= DI::l10n()->t("Posts are going to all accounts that are enabled by default:");
 207                         $s .= "<ul>";
 208                         foreach ($profiles as $profile) {
 209                                 if (!$profile->default)
 210                                         continue;
 211                                 $s .= "<li>";
 212                                 //$s .= "<img src='".$profile->avatar_https."' width='16' />";
 213                                 $s .= " ".$profile->formatted_username." (".$profile->formatted_service.")";
 214                                 $s .= "</li>";
 215                         }
 216                         $s .= "</ul>";
 217                         $s .= '</div><div class="clear"></div>';
 218                 }
 219
 220         }
 221
 222         $s .= '</div><div class="clear"></div>';
 223
 224         /* provide a submit button */
 225
 226         $s .= '<div class="settings-submit-wrapper" ><input type="submit" id="buffer-submit" name="buffer-submit" class="settings-submit" value="' . DI::l10n()->t('Save Settings') . '" /></div></div>';
 227 }
 228
 229
 230 function buffer_settings_post(App $a, array &$b)
 231 {
 232         if (!empty($_POST['buffer-submit'])) {
 233                 if (!empty($_POST['buffer_delete'])) {
 234                         DI::pConfig()->set(local_user(), 'buffer', 'access_token'   , '');
 235                         DI::pConfig()->set(local_user(), 'buffer', 'post'           , false);
 236                         DI::pConfig()->set(local_user(), 'buffer', 'post_by_default', false);
 237                 } else {
 238                         DI::pConfig()->set(local_user(), 'buffer', 'post'           , intval($_POST['buffer'] ?? false));
 239                         DI::pConfig()->set(local_user(), 'buffer', 'post_by_default', intval($_POST['buffer_bydefault'] ?? false));
 240                 }
 241         }
 242 }
 243
 244 function buffer_post_local(App $a, array &$b)
 245 {
 246         if (!local_user() || (local_user() != $b['uid'])) {
 247                 return;
 248         }
 249
 250         $buffer_post   = intval(DI::pConfig()->get(local_user(),'buffer','post'));
 251
 252         $buffer_enable = (($buffer_post && !empty($_REQUEST['buffer_enable'])) ? intval($_REQUEST['buffer_enable']) : 0);
 253
 254         if ($b['api_source'] && intval(DI::pConfig()->get(local_user(),'buffer','post_by_default'))) {
 255                 $buffer_enable = 1;
 256         }
 257
 258         if (!$buffer_enable) {
 259                 return;
 260         }
 261
 262         if (strlen($b['postopts'])) {
 263                 $b['postopts'] .= ',';
 264         }
 265
 266         $b['postopts'] .= 'buffer';
 267 }
 268
 269 function buffer_hook_fork(&$a, &$b)
 270 {
 271         if ($b['name'] != 'notifier_normal') {
 272                 return;
 273         }
 274
 275         $post = $b['data'];
 276
 277         if ($post['deleted'] || $post['private'] || ($post['created'] !== $post['edited']) ||
 278                 !strstr($post['postopts'], 'buffer') || ($post['parent'] != $post['id'])) {
 279                 $b['execute'] = false;
 280                 return;
 281         }
 282 }
 283
 284 function buffer_send(App $a, array &$b)
 285 {
 286         if ($b['deleted'] || $b['private'] || ($b['created'] !== $b['edited'])) {
 287                 return;
 288         }
 289
 290         if (!strstr($b['postopts'],'buffer')) {
 291                 return;
 292         }
 293
 294         if ($b['parent'] != $b['id']) {
 295                 return;
 296         }
 297
 298         // Dont't post if the post doesn't belong to us.
 299         // This is a check for forum postings
 300         $self = DBA::selectFirst('contact', ['id'], ['uid' => $b['uid'], 'self' => true]);
 301         if ($b['contact-id'] != $self['id']) {
 302                 return;
 303         }
 304
 305         // if post comes from buffer don't send it back
 306         //if($b['app'] == "Buffer")
 307         //      return;
 308
 309         $client_id = DI::config()->get("buffer", "client_id");
 310         $client_secret = DI::config()->get("buffer", "client_secret");
 311         $access_token = DI::pConfig()->get($b['uid'], "buffer","access_token");
 312         $callback_url = "";
 313
 314         if ($access_token) {
 315                 $buffer = new BufferApp($client_id, $client_secret, $callback_url, $access_token);
 316
 317                 $profiles = $buffer->go('/profiles');
 318                 if (is_array($profiles)) {
 319                         Logger::log("Will send these parameter ".print_r($b, true), Logger::DEBUG);
 320
 321                         foreach ($profiles as $profile) {
 322                                 if (!$profile->default)
 323                                         continue;
 324
 325                                 $send = false;
 326
 327                                 switch ($profile->service) {
 328                                         case 'facebook':
 329                                                 $send = ($b["extid"] != Protocol::FACEBOOK);
 330                                                 $limit = 0;
 331                                                 $includedlinks = false;
 332                                                 $htmlmode = 9;
 333                                                 break;
 334
 335                                         case 'twitter':
 336                                                 $send = ($b["extid"] != Protocol::TWITTER);
 337                                                 $limit = 280;
 338                                                 $includedlinks = true;
 339                                                 $htmlmode = 8;
 340                                                 break;
 341
 342                                         case 'linkedin':
 343                                                 $send = ($b["extid"] != Protocol::LINKEDIN);
 344                                                 $limit = 700;
 345                                                 $includedlinks = true;
 346                                                 $htmlmode = 2;
 347                                                 break;
 348                                 }
 349
 350                                 if (!$send)
 351                                         continue;
 352
 353                                 $item = $b;
 354
 355                                 $post = ItemContent::getPlaintextPost($item, $limit, $includedlinks, $htmlmode);
 356                                 Logger::log("buffer_send: converted message ".$b["id"]." result: ".print_r($post, true), Logger::DEBUG);
 357
 358                                 // The image proxy is used as a sanitizer. Buffer seems to be really picky about pictures
 359                                 if (isset($post["image"])) {
 360                                         $post["image"] = ProxyUtils::proxifyUrl($post["image"]);
 361                                 }
 362
 363                                 if (isset($post["preview"])) {
 364                                         $post["preview"] = ProxyUtils::proxifyUrl($post["preview"]);
 365                                 }
 366
 367                                 // Seems like a bug to me
 368                                 // Buffer doesn't add links to Twitter (but pictures)
 369                                 if (($profile->service == "twitter") && isset($post["url"]) && ($post["type"] != "photo")) {
 370                                         $post["text"] .= " " . $post["url"];
 371                                 }
 372
 373                                 $message = [];
 374                                 $message["text"] = $post["text"];
 375                                 $message["profile_ids[]"] = $profile->id;
 376                                 $message["shorten"] = false;
 377                                 $message["now"] = true;
 378
 379                                 if (isset($post["title"])) {
 380                                         $message["media[title]"] = $post["title"];
 381                                 }
 382
 383                                 if (isset($post["description"])) {
 384                                         $message["media[description]"] = $post["description"];
 385                                 }
 386
 387                                 if (isset($post["url"]) && ($post["type"] != "photo")) {
 388                                         $message["media[link]"] = $post["url"];
 389                                 }
 390
 391                                 if (isset($post["image"])) {
 392                                         $message["media[picture]"] = $post["image"];
 393
 394                                         if ($post["type"] == "photo") {
 395                                                 $message["media[thumbnail]"] = $post["image"];
 396                                         }
 397                                 }
 398
 399                                 if (isset($post["preview"])) {
 400                                         $message["media[thumbnail]"] = $post["preview"];
 401                                 }
 402
 403                                 //print_r($message);
 404                                 Logger::log("buffer_send: data for message " . $b["id"] . ": " . print_r($message, true), Logger::DEBUG);
 405                                 $ret = $buffer->go('/updates/create', $message);
 406                                 Logger::log("buffer_send: send message " . $b["id"] . " result: " . print_r($ret, true), Logger::DEBUG);
 407                         }
 408                 }
 409         }
 410 }