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\Database\DBA;
  17 use Friendica\Model\ItemContent;
  18 use Friendica\Util\Proxy as ProxyUtils;
  19
  20 function buffer_install()
  21 {
  22         Addon::registerHook('post_local',           'addon/buffer/buffer.php', 'buffer_post_local');
  23         Addon::registerHook('notifier_normal',      'addon/buffer/buffer.php', 'buffer_send');
  24         Addon::registerHook('jot_networks',         'addon/buffer/buffer.php', 'buffer_jot_nets');
  25         Addon::registerHook('connector_settings',      'addon/buffer/buffer.php', 'buffer_settings');
  26         Addon::registerHook('connector_settings_post', 'addon/buffer/buffer.php', 'buffer_settings_post');
  27 }
  28
  29 function buffer_uninstall()
  30 {
  31         Addon::unregisterHook('post_local',              'addon/buffer/buffer.php', 'buffer_post_local');
  32         Addon::unregisterHook('notifier_normal',         'addon/buffer/buffer.php', 'buffer_send');
  33         Addon::unregisterHook('jot_networks',            'addon/buffer/buffer.php', 'buffer_jot_nets');
  34         Addon::unregisterHook('connector_settings',      'addon/buffer/buffer.php', 'buffer_settings');
  35         Addon::unregisterHook('connector_settings_post', 'addon/buffer/buffer.php', 'buffer_settings_post');
  36 }
  37
  38 function buffer_module()
  39 {
  40 }
  41
  42 function buffer_content(App $a)
  43 {
  44         if (! local_user()) {
  45                 notice(L10n::t('Permission denied.') . EOL);
  46                 return '';
  47         }
  48
  49         require_once "mod/settings.php";
  50         settings_init($a);
  51
  52         if (isset($a->argv[1])) {
  53                 switch ($a->argv[1]) {
  54                         case "connect":
  55                                 $o = buffer_connect($a);
  56                                 break;
  57
  58                         default:
  59                                 $o = print_r($a->argv, true);
  60                                 break;
  61                 }
  62         } else {
  63                 $o = buffer_connect($a);
  64         }
  65
  66         return $o;
  67 }
  68
  69 function buffer_addon_admin(App $a, &$o)
  70 {
  71         $t = get_markup_template("admin.tpl", "addon/buffer/");
  72
  73         $o = replace_macros($t, [
  74                 '$submit' => L10n::t('Save Settings'),
  75                 // name, label, value, help, [extra values]
  76                 '$client_id' => ['client_id', L10n::t('Client ID'), Config::get('buffer', 'client_id'), ''],
  77                 '$client_secret' => ['client_secret', L10n::t('Client Secret'), Config::get('buffer', 'client_secret'), ''],
  78         ]);
  79 }
  80
  81 function buffer_addon_admin_post(App $a)
  82 {
  83         $client_id     = ((!empty($_POST['client_id']))     ? notags(trim($_POST['client_id']))     : '');
  84         $client_secret = ((!empty($_POST['client_secret'])) ? notags(trim($_POST['client_secret'])) : '');
  85
  86         Config::set('buffer', 'client_id'    , $client_id);
  87         Config::set('buffer', 'client_secret', $client_secret);
  88
  89         info(L10n::t('Settings updated.'). EOL);
  90 }
  91
  92 function buffer_connect(App $a)
  93 {
  94         if (isset($_REQUEST["error"])) {
  95                 $o = L10n::t('Error when registering buffer connection:')." ".$_REQUEST["error"];
  96                 return $o;
  97         }
  98
  99         // Start a session.  This is necessary to hold on to  a few keys the callback script will also need
 100         session_start();
 101
 102         // Define the needed keys
 103         $client_id = Config::get('buffer','client_id');
 104         $client_secret = Config::get('buffer','client_secret');
 105
 106         // The callback URL is the script that gets called after the user authenticates with buffer
 107         $callback_url = $a->get_baseurl()."/buffer/connect";
 108
 109         $buffer = new BufferApp($client_id, $client_secret, $callback_url);
 110
 111         if (!$buffer->ok) {
 112                 $o .= '<a href="' . $buffer->get_login_url() . '">Connect to Buffer!</a>';
 113         } else {
 114                 logger("buffer_connect: authenticated");
 115                 $o .= L10n::t("You are now authenticated to buffer. ");
 116                 $o .= '<br /><a href="' . $a->get_baseurl() . '/settings/connectors">' . L10n::t("return to the connector page") . '</a>';
 117                 PConfig::set(local_user(), 'buffer','access_token', $buffer->access_token);
 118         }
 119
 120         return $o;
 121 }
 122
 123 function buffer_jot_nets(App $a, &$b)
 124 {
 125         if (!local_user()) {
 126                 return;
 127         }
 128
 129         $buffer_post = PConfig::get(local_user(), 'buffer', 'post');
 130
 131         if (intval($buffer_post) == 1) {
 132                 $buffer_defpost = PConfig::get(local_user(), 'buffer', 'post_by_default');
 133                 $selected = ((intval($buffer_defpost) == 1) ? ' checked="checked" ' : '');
 134                 $b .= '<div class="profile-jot-net"><input type="checkbox" name="buffer_enable"' . $selected . ' value="1" /> '
 135                     . L10n::t('Post to Buffer') . '</div>';
 136         }
 137 }
 138
 139 function buffer_settings(App $a, &$s)
 140 {
 141         if (! local_user()) {
 142                 return;
 143         }
 144
 145         /* Add our stylesheet to the page so we can make our settings look nice */
 146
 147         $a->page['htmlhead'] .= '<link rel="stylesheet"  type="text/css" href="' . $a->get_baseurl() . '/addon/buffer/buffer.css' . '" media="all" />' . "\r\n";
 148
 149         /* Get the current state of our config variables */
 150
 151         $enabled = PConfig::get(local_user(),'buffer','post');
 152         $checked = (($enabled) ? ' checked="checked" ' : '');
 153         $css = (($enabled) ? '' : '-disabled');
 154
 155         $def_enabled = PConfig::get(local_user(),'buffer','post_by_default');
 156         $def_checked = (($def_enabled) ? ' checked="checked" ' : '');
 157
 158         /* Add some HTML to the existing form */
 159
 160         $s .= '<span id="settings_buffer_inflated" class="settings-block fakelink" style="display: block;" onclick="openClose(\'settings_buffer_expanded\'); openClose(\'settings_buffer_inflated\');">';
 161         $s .= '<img class="connector'.$css.'" src="images/buffer.png" /><h3 class="connector">'. L10n::t('Buffer Export').'</h3>';
 162         $s .= '</span>';
 163         $s .= '<div id="settings_buffer_expanded" class="settings-block" style="display: none;">';
 164         $s .= '<span class="fakelink" onclick="openClose(\'settings_buffer_expanded\'); openClose(\'settings_buffer_inflated\');">';
 165         $s .= '<img class="connector'.$css.'" src="images/buffer.png" /><h3 class="connector">'. L10n::t('Buffer Export').'</h3>';
 166         $s .= '</span>';
 167
 168         $client_id = Config::get("buffer", "client_id");
 169         $client_secret = Config::get("buffer", "client_secret");
 170         $access_token = PConfig::get(local_user(), "buffer", "access_token");
 171
 172         $s .= '<div id="buffer-password-wrapper">';
 173
 174         if ($access_token == "") {
 175                 $s .= '<div id="buffer-authenticate-wrapper">';
 176                 $s .= '<a href="'.$a->get_baseurl().'/buffer/connect">'.L10n::t("Authenticate your Buffer connection").'</a>';
 177                 $s .= '</div><div class="clear"></div>';
 178         } else {
 179                 $s .= '<div id="buffer-enable-wrapper">';
 180                 $s .= '<label id="buffer-enable-label" for="buffer-checkbox">' . L10n::t('Enable Buffer Post Addon') . '</label>';
 181                 $s .= '<input id="buffer-checkbox" type="checkbox" name="buffer" value="1" ' . $checked . '/>';
 182                 $s .= '</div><div class="clear"></div>';
 183
 184                 $s .= '<div id="buffer-bydefault-wrapper">';
 185                 $s .= '<label id="buffer-bydefault-label" for="buffer-bydefault">' . L10n::t('Post to Buffer by default') . '</label>';
 186                 $s .= '<input id="buffer-bydefault" type="checkbox" name="buffer_bydefault" value="1" ' . $def_checked . '/>';
 187                 $s .= '</div><div class="clear"></div>';
 188
 189                 $s .= '<div id="buffer-delete-wrapper">';
 190                 $s .= '<label id="buffer-delete-label" for="buffer-delete">' . L10n::t('Check to delete this preset') . '</label>';
 191                 $s .= '<input id="buffer-delete" type="checkbox" name="buffer_delete" value="1" />';
 192                 $s .= '</div><div class="clear"></div>';
 193
 194                 // The callback URL is the script that gets called after the user authenticates with buffer
 195                 $callback_url = $a->get_baseurl() . '/buffer/connect';
 196
 197                 $buffer = new BufferApp($client_id, $client_secret, $callback_url, $access_token);
 198
 199                 $profiles = $buffer->go('/profiles');
 200                 if (is_array($profiles)) {
 201                         $s .= '<div id="buffer-accounts-wrapper">';
 202                         $s .= L10n::t("Posts are going to all accounts that are enabled by default:");
 203                         $s .= "<ul>";
 204                         foreach ($profiles as $profile) {
 205                                 if (!$profile->default)
 206                                         continue;
 207                                 $s .= "<li>";
 208                                 //$s .= "<img src='".$profile->avatar_https."' width='16' />";
 209                                 $s .= " ".$profile->formatted_username." (".$profile->formatted_service.")";
 210                                 $s .= "</li>";
 211                         }
 212                         $s .= "</ul>";
 213                         $s .= '</div><div class="clear"></div>';
 214                 }
 215
 216         }
 217
 218         $s .= '</div><div class="clear"></div>';
 219
 220         /* provide a submit button */
 221
 222         $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>';
 223 }
 224
 225
 226 function buffer_settings_post(App $a, array &$b)
 227 {
 228         if (!empty($_POST['buffer-submit'])) {
 229                 if (!empty($_POST['buffer_delete'])) {
 230                         PConfig::set(local_user(), 'buffer', 'access_token'   , '');
 231                         PConfig::set(local_user(), 'buffer', 'post'           , false);
 232                         PConfig::set(local_user(), 'buffer', 'post_by_default', false);
 233                 } else {
 234                         PConfig::set(local_user(), 'buffer', 'post'           , intval($_POST['buffer']));
 235                         PConfig::set(local_user(), 'buffer', 'post_by_default', intval($_POST['buffer_bydefault']));
 236                 }
 237         }
 238 }
 239
 240 function buffer_post_local(App $a, array &$b)
 241 {
 242         if (!local_user() || (local_user() != $b['uid'])) {
 243                 return;
 244         }
 245
 246         $buffer_post   = intval(PConfig::get(local_user(),'buffer','post'));
 247
 248         $buffer_enable = (($buffer_post && !empty($_REQUEST['buffer_enable'])) ? intval($_REQUEST['buffer_enable']) : 0);
 249
 250         if ($b['api_source'] && intval(PConfig::get(local_user(),'buffer','post_by_default'))) {
 251                 $buffer_enable = 1;
 252         }
 253
 254         if (!$buffer_enable) {
 255                 return;
 256         }
 257
 258         if (strlen($b['postopts'])) {
 259                 $b['postopts'] .= ',';
 260         }
 261
 262         $b['postopts'] .= 'buffer';
 263 }
 264
 265 function buffer_send(App $a, array &$b)
 266 {
 267         if ($b['deleted'] || $b['private'] || ($b['created'] !== $b['edited'])) {
 268                 return;
 269         }
 270
 271         if (!strstr($b['postopts'],'buffer')) {
 272                 return;
 273         }
 274
 275         if ($b['parent'] != $b['id']) {
 276                 return;
 277         }
 278
 279         // Dont't post if the post doesn't belong to us.
 280         // This is a check for forum postings
 281         $self = DBA::selectFirst('contact', ['id'], ['uid' => $b['uid'], 'self' => true]);
 282         if ($b['contact-id'] != $self['id']) {
 283                 return;
 284         }
 285
 286         // if post comes from buffer don't send it back
 287         //if($b['app'] == "Buffer")
 288         //      return;
 289
 290         $client_id = Config::get("buffer", "client_id");
 291         $client_secret = Config::get("buffer", "client_secret");
 292         $access_token = PConfig::get($b['uid'], "buffer","access_token");
 293         $callback_url = "";
 294
 295         if ($access_token) {
 296                 $buffer = new BufferApp($client_id, $client_secret, $callback_url, $access_token);
 297
 298                 $profiles = $buffer->go('/profiles');
 299                 if (is_array($profiles)) {
 300                         logger("Will send these parameter ".print_r($b, true), LOGGER_DEBUG);
 301
 302                         foreach ($profiles as $profile) {
 303                                 if (!$profile->default)
 304                                         continue;
 305
 306                                 $send = false;
 307
 308                                 switch ($profile->service) {
 309                                         case 'facebook':
 310                                                 $send = ($b["extid"] != NETWORK_FACEBOOK);
 311                                                 $limit = 0;
 312                                                 $markup = false;
 313                                                 $includedlinks = false;
 314                                                 $htmlmode = 9;
 315                                                 break;
 316
 317                                         case 'google':
 318                                                 $send = ($b["extid"] != NETWORK_GPLUS);
 319                                                 $limit = 0;
 320                                                 $markup = true;
 321                                                 $includedlinks = false;
 322                                                 $htmlmode = 9;
 323                                                 break;
 324
 325                                         case 'twitter':
 326                                                 $send = ($b["extid"] != NETWORK_TWITTER);
 327                                                 $limit = 280;
 328                                                 $markup = false;
 329                                                 $includedlinks = true;
 330                                                 $htmlmode = 8;
 331                                                 break;
 332
 333                                         case 'linkedin':
 334                                                 $send = ($b["extid"] != NETWORK_LINKEDIN);
 335                                                 $limit = 700;
 336                                                 $markup = false;
 337                                                 $includedlinks = true;
 338                                                 $htmlmode = 2;
 339                                                 break;
 340                                 }
 341
 342                                 if (!$send)
 343                                         continue;
 344
 345                                 $item = $b;
 346
 347                                 // Markup for Google+
 348                                 if ($markup) {
 349                                         if ($item["title"] != "") {
 350                                                 $item["title"] = "*" . $item["title"] . "*";
 351                                         }
 352
 353                                         $item["body"] = preg_replace("(\[b\](.*?)\[\/b\])ism", '*$1*', $item["body"]);
 354                                         $item["body"] = preg_replace("(\[i\](.*?)\[\/i\])ism", '_$1_', $item["body"]);
 355                                         $item["body"] = preg_replace("(\[s\](.*?)\[\/s\])ism", '-$1-', $item["body"]);
 356                                 }
 357
 358                                 $post = ItemContent::getPlaintextPost($item, $limit, $includedlinks, $htmlmode);
 359                                 logger("buffer_send: converted message ".$b["id"]." result: ".print_r($post, true), LOGGER_DEBUG);
 360
 361                                 // The image proxy is used as a sanitizer. Buffer seems to be really picky about pictures
 362                                 if (isset($post["image"])) {
 363                                         $post["image"] = ProxyUtils::proxifyUrl($post["image"]);
 364                                 }
 365
 366                                 if (isset($post["preview"])) {
 367                                         $post["preview"] = ProxyUtils::proxifyUrl($post["preview"]);
 368                                 }
 369
 370                                 // Seems like a bug to me
 371                                 // Buffer doesn't add links to Twitter (but pictures)
 372                                 if (($profile->service == "twitter") && isset($post["url"]) && ($post["type"] != "photo")) {
 373                                         $post["text"] .= " " . $post["url"];
 374                                 } elseif ($profile->service == "google") {
 375                                         $post["text"] .= html_entity_decode("&#x00A0;", ENT_QUOTES, 'UTF-8'); // Send a special blank to identify the post through the "fromgplus" addon
 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("buffer_send: data for message " . $b["id"] . ": " . print_r($message, true), LOGGER_DEBUG);
 410                                 $ret = $buffer->go('/updates/create', $message);
 411                                 logger("buffer_send: send message " . $b["id"] . " result: " . print_r($ret, true), LOGGER_DEBUG);
 412                         }
 413                 }
 414         }
 415 }