gpluspost/gpluspost.php

   1 <?php
   2
   3 /**
   4  * Name: G+ Post
   5  * Description: Posts to a Google+ page with the help of Seesmic
   6  * Version: 0.1
   7  * Author: Michael Vogel <https://pirati.ca/profile/heluecht>
   8  */
   9
  10 function gpluspost_install() {
  11         register_hook('post_local',           'addon/gpluspost/gpluspost.php', 'gpluspost_post_local');
  12         register_hook('notifier_normal',      'addon/gpluspost/gpluspost.php', 'gpluspost_send');
  13         register_hook('jot_networks',         'addon/gpluspost/gpluspost.php', 'gpluspost_jot_nets');
  14         register_hook('connector_settings',      'addon/gpluspost/gpluspost.php', 'gpluspost_settings');
  15         register_hook('connector_settings_post', 'addon/gpluspost/gpluspost.php', 'gpluspost_settings_post');
  16 }
  17
  18
  19 function gpluspost_uninstall() {
  20         unregister_hook('post_local',       'addon/gpluspost/gpluspost.php', 'gpluspost_post_local');
  21         unregister_hook('notifier_normal',  'addon/gpluspost/gpluspost.php', 'gpluspost_send');
  22         unregister_hook('jot_networks',     'addon/gpluspost/gpluspost.php', 'gpluspost_jot_nets');
  23         unregister_hook('connector_settings',      'addon/gpluspost/gpluspost.php', 'gpluspost_settings');
  24         unregister_hook('connector_settings_post', 'addon/gpluspost/gpluspost.php', 'gpluspost_settings_post');
  25 }
  26
  27 function gpluspost_jot_nets(&$a,&$b) {
  28         if(! local_user())
  29                 return;
  30
  31         $post = get_pconfig(local_user(),'gpluspost','post');
  32         if(intval($post) == 1) {
  33                 $defpost = get_pconfig(local_user(),'gpluspost','post_by_default');
  34                 $selected = ((intval($defpost) == 1) ? ' checked="checked" ' : '');
  35                 $b .= '<div class="profile-jot-net"><input type="checkbox" name="gpluspost_enable"' . $selected . ' value="1" /> '
  36                         . t('Post to Google+') . '</div>';
  37     }
  38 }
  39
  40 function gpluspost_settings(&$a,&$s) {
  41
  42         if(! local_user())
  43                 return;
  44
  45         $enabled = get_pconfig(local_user(),'gpluspost','post');
  46         $checked = (($enabled) ? ' checked="checked" ' : '');
  47
  48         $def_enabled = get_pconfig(local_user(),'gpluspost','post_by_default');
  49         $def_checked = (($def_enabled) ? ' checked="checked" ' : '');
  50
  51         $noloop_enabled = get_pconfig(local_user(),'gpluspost','no_loop_prevention');
  52         $noloop_checked = (($noloop_enabled) ? ' checked="checked" ' : '');
  53
  54         $s .= '<div class="settings-block">';
  55         $s .= '<h3>' . t('Google+ Post Settings') . '</h3>';
  56         $s .= '<div id="gpluspost-enable-wrapper">';
  57         $s .= '<label id="gpluspost-enable-label" for="gpluspost-checkbox">' . t('Enable Google+ Post Plugin') . '</label>';
  58         $s .= '<input id="gpluspost-checkbox" type="checkbox" name="gpluspost" value="1" ' . $checked . '/>';
  59         $s .= '</div><div class="clear"></div>';
  60
  61         $s .= '<div id="gpluspost-bydefault-wrapper">';
  62         $s .= '<label id="gpluspost-bydefault-label" for="gpluspost-bydefault">' . t('Post to Google+ by default') . '</label>';
  63         $s .= '<input id="gpluspost-bydefault" type="checkbox" name="gpluspost_bydefault" value="1" ' . $def_checked . '/>';
  64         $s .= '</div><div class="clear"></div>';
  65
  66         $s .= '<div id="gpluspost-noloopprevention-wrapper">';
  67         $s .= '<label id="gpluspost-noloopprevention-label" for="gpluspost-noloopprevention">' . t('Do not prevent posting loops') . '</label>';
  68         $s .= '<input id="gpluspost-noloopprevention" type="checkbox" name="gpluspost_noloopprevention" value="1" ' . $noloop_checked . '/>';
  69         $s .= '</div><div class="clear"></div>';
  70
  71         /* provide a submit button */
  72
  73         $s .= '<div class="settings-submit-wrapper" ><input type="submit" id="gpluspost-submit" name="gpluspost-submit" class="settings-submit" value="' . t('Submit') . '" /></div>';
  74         $s .= 'Register an account at <a href="https://hootsuite.com">Hootsuite</a>, add your G+ page and add the feed-url there.<br />';
  75         $s .= 'Feed-url: '.$a->get_baseurl().'/gpluspost/'.urlencode($a->user["nickname"]).'</div>';
  76 }
  77
  78 function gpluspost_settings_post(&$a,&$b) {
  79
  80         if(x($_POST,'gpluspost-submit')) {
  81                 set_pconfig(local_user(),'gpluspost','post',intval($_POST['gpluspost']));
  82                 set_pconfig(local_user(),'gpluspost','post_by_default',intval($_POST['gpluspost_bydefault']));
  83                 set_pconfig(local_user(),'gpluspost','no_loop_prevention',intval($_POST['gpluspost_noloopprevention']));
  84         }
  85 }
  86
  87 function gpluspost_post_local(&$a,&$b) {
  88
  89         if($b['edit'])
  90                 return;
  91
  92         if((! local_user()) || (local_user() != $b['uid']))
  93                 return;
  94
  95         if($b['private'] || $b['parent'])
  96                 return;
  97
  98         $post   = intval(get_pconfig(local_user(),'gpluspost','post'));
  99
 100         $enable = (($post && x($_REQUEST,'gpluspost_enable')) ? intval($_REQUEST['gpluspost_enable']) : 0);
 101
 102         if($_REQUEST['api_source'] && intval(get_pconfig(local_user(),'gpluspost','post_by_default')))
 103                 $enable = 1;
 104
 105         if(!$enable)
 106                 return;
 107
 108         if(strlen($b['postopts']))
 109                 $b['postopts'] .= ',';
 110
 111         $b['postopts'] .= 'gplus';
 112 }
 113
 114 function gpluspost_send(&$a,&$b) {
 115
 116         logger('gpluspost_send: invoked for post '.$b['id']." ".$b['app']);
 117
 118         if($b['deleted'] || $b['private'] || ($b['created'] !== $b['edited']))
 119                 return;
 120
 121         if(! strstr($b['postopts'],'gplus'))
 122                 return;
 123
 124         if($b['parent'] != $b['id'])
 125                 return;
 126
 127         // if post comes from Google+ don't send it back
 128         if (!get_pconfig($b["uid"],'gpluspost','no_loop_prevention') and ($b['app'] == "Google+"))
 129                 return;
 130
 131         $itemlist = get_pconfig($b["uid"],'gpluspost','itemlist');
 132         $items = explode(",", $itemlist);
 133
 134         $i = 0;
 135         $newitems = array($b['id']);
 136         foreach ($items AS $item)
 137                 if ($i++ < 9)
 138                         $newitems[] = $item;
 139
 140         $itemlist = implode(",", $newitems);
 141
 142         logger('gpluspost_send: new itemlist: '.$itemlist." for uid ".$b["uid"]);
 143
 144         set_pconfig($b["uid"],'gpluspost','itemlist', $itemlist);
 145 }
 146
 147 function gpluspost_module() {}
 148
 149 function gpluspost_init() {
 150         global $a, $_SERVER;
 151
 152         $uid = 0;
 153
 154         if (isset($a->argv[1])) {
 155                 $uid = (int)$a->argv[1];
 156                 if ($uid == 0) {
 157                         $contacts = q("SELECT `username`, `uid` FROM `user` WHERE `nickname` = '%s' LIMIT 1", dbesc($a->argv[1]));
 158                         if ($contacts) {
 159                                 $uid = $contacts[0]["uid"];
 160                                 $nick = $a->argv[1];
 161                         }
 162                 } else {
 163                         $contacts = q("SELECT `username` FROM `user` WHERE `uid`=%d LIMIT 1", intval($uid));
 164                         $nick = $uid;
 165                 }
 166         }
 167
 168         header("content-type: application/atom+xml");
 169         echo '<?xml version="1.0" encoding="UTF-8"?>'."\n";
 170         echo '<feed xmlns="http://www.w3.org/2005/Atom" xmlns:dc="http://purl.org/dc/elements/1.1/">'."\n";
 171         echo "\t".'<title type="html"><![CDATA['.$a->config['sitename'].']]></title>'."\n";
 172         if ($uid != 0) {
 173                 echo "\t".'<subtitle type="html"><![CDATA['.$contacts[0]["username"]."]]></subtitle>\n";
 174                 echo "\t".'<link rel="self" href="'.$a->get_baseurl().'/gpluspost/'.$nick.'"/>'."\n";
 175         } else
 176                 echo "\t".'<link rel="self" href="'.$a->get_baseurl().'/gpluspost"/>'."\n";
 177         echo "\t<id>".$a->get_baseurl()."/</id>\n";
 178         echo "\t".'<link rel="alternate" type="text/html" href="'.$a->get_baseurl().'"/>'."\n";
 179         echo "\t<updated>".date("c")."</updated>\n"; // To-Do
 180         // <rights>Copyright ... </rights>
 181         echo "\t".'<generator uri="'.$a->get_baseurl().'">'.$a->config['sitename'].'</generator>'."\n";
 182
 183         if ($uid != 0) {
 184                 $itemlist = get_pconfig($uid,'gpluspost','itemlist');
 185                 $items = explode(",", $itemlist);
 186
 187                 foreach ($items AS $item)
 188                         gpluspost_feeditem($item, $uid);
 189         } else {
 190                 $items = q("SELECT `id` FROM `item` FORCE INDEX (`received`) WHERE `item`.`visible` = 1 AND `item`.`deleted` = 0 and `item`.`moderated` = 0 AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = '' AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = '' AND `item`.`private` = 0 AND `item`.`wall` = 1 AND `item`.`id` = `item`.`parent` ORDER BY `received` DESC LIMIT 10");
 191                 foreach ($items AS $item)
 192                         gpluspost_feeditem($item["id"], $uid);
 193         }
 194         echo "</feed>\n";
 195         killme();
 196 }
 197
 198 function gpluspost_original_url($url, $depth=1) {
 199
 200         if ($depth > 10)
 201                 return($url);
 202
 203         $siteinfo = array();
 204         $ch = curl_init();
 205         curl_setopt($ch, CURLOPT_URL, $url);
 206         curl_setopt($ch, CURLOPT_HEADER, 1);
 207         curl_setopt($ch, CURLOPT_NOBODY, 0);
 208         curl_setopt($ch, CURLOPT_TIMEOUT, 3);
 209         curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 210         curl_setopt($ch,CURLOPT_USERAGENT,'Opera/9.64(Windows NT 5.1; U; de) Presto/2.1.1');
 211
 212         $header = curl_exec($ch);
 213         $curl_info = @curl_getinfo($ch);
 214         $http_code = $curl_info['http_code'];
 215         curl_close($ch);
 216
 217         if ((($curl_info['http_code'] == "301") OR ($curl_info['http_code'] == "302"))
 218                 AND (($curl_info['redirect_url'] != "") OR ($curl_info['location'] != ""))) {
 219                 if ($curl_info['redirect_url'] != "")
 220                         return(gpluspost_original_url($curl_info['redirect_url'], ++$depth));
 221                 else
 222                         return(gpluspost_original_url($curl_info['location'], ++$depth));
 223         }
 224
 225         $pos = strpos($header, "\r\n\r\n");
 226
 227         if ($pos)
 228                 $body = trim(substr($header, $pos));
 229         else
 230                 $body = $header;
 231
 232         $doc = new DOMDocument();
 233         @$doc->loadHTML($body);
 234
 235         $xpath = new DomXPath($doc);
 236
 237         $list = $xpath->query("//meta[@content]");
 238         foreach ($list as $node) {
 239                 $attr = array();
 240                 if ($node->attributes->length)
 241                         foreach ($node->attributes as $attribute)
 242                                 $attr[$attribute->name] = $attribute->value;
 243
 244                 if (@$attr["http-equiv"] == 'refresh') {
 245                         $path = $attr["content"];
 246                         $pathinfo = explode(";", $path);
 247                         $content = "";
 248                         foreach ($pathinfo AS $value)
 249                                 if (substr(strtolower($value), 0, 4) == "url=")
 250                                         return(gpluspost_original_url(substr($value, 4), ++$depth));
 251                 }
 252         }
 253
 254         return($url);
 255 }
 256
 257 function gpluspost_ShareAttributes($match) {
 258
 259         $attributes = $match[1];
 260
 261         $author = "";
 262         preg_match("/author='(.*?)'/ism", $attributes, $matches);
 263         if ($matches[1] != "")
 264                 $author = $matches[1];
 265
 266         preg_match('/author="(.*?)"/ism', $attributes, $matches);
 267         if ($matches[1] != "")
 268                 $author = $matches[1];
 269
 270         $headline = '<div class="shared_header">';
 271
 272         $headline .= sprintf(t('%s:'), $author);
 273
 274         $headline .= "</div>";
 275
 276         //$text = "<br />".$headline."</strong><blockquote>".$match[2]."</blockquote>";
 277         //$text = "\n\t".$match[2].":\t";
 278         $text = html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').$author.": ".$match[2];
 279
 280         return($text);
 281 }
 282
 283 function gpluspost_feeditem($pid, $uid) {
 284         global $a;
 285
 286         require_once('include/bbcode.php');
 287         require_once("include/html2plain.php");
 288
 289         $max_char = 140;
 290
 291         $items = q("SELECT `uri`, `plink`, `author-link`, `author-name`, `created`, `edited`, `id`, `title`, `body` from `item` WHERE id=%d", intval($pid));
 292         foreach ($items AS $item) {
 293
 294                 // Looking for the first image
 295                 $image = '';
 296                 if(preg_match("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/is",$item['body'],$matches))
 297                         $image = $matches[3];
 298
 299                 if ($image == '')
 300                         if(preg_match("/\[img\](.*?)\[\/img\]/is",$item['body'],$matches))
 301                                 $image = $matches[1];
 302
 303                 $multipleimages = (strpos($item['body'], "[img") != strrpos($item['body'], "[img"));
 304
 305                 // When saved into the database the content is sent through htmlspecialchars
 306                 // That means that we have to decode all image-urls
 307                 $image = htmlspecialchars_decode($image);
 308
 309                 $link = '';
 310                 // look for bookmark-bbcode and handle it with priority
 311                 if(preg_match("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/is",$item['body'],$matches))
 312                         $link = $matches[1];
 313
 314                 $multiplelinks = (strpos($item['body'], "[bookmark") != strrpos($item['body'], "[bookmark"));
 315
 316                 $body = $item['body'];
 317                 $body = preg_replace_callback("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]/ism","gpluspost_ShareAttributes", $body);
 318
 319                 $html = bbcode($body, false, false);
 320                 $msg = trim(html2plain($html, 0, true));
 321
 322                 // If there is no bookmark element then take the first link
 323                 if ($link == '') {
 324                         $links = collecturls($html);
 325                         if (sizeof($links) > 0) {
 326                                 reset($links);
 327                                 $link = current($links);
 328                         }
 329                         $multiplelinks = (sizeof($links) > 1);
 330                 }
 331
 332                 $msglink = "";
 333                 if ($multiplelinks)
 334                         $msglink = $item["plink"];
 335                 else if ($link != "")
 336                         $msglink = $link;
 337                 else if ($multipleimages)
 338                         $msglink = $item["plink"];
 339                 else if ($image != "")
 340                         $msglink = $image;
 341
 342                 if ($msglink == "")
 343                         $msglink = $item["plink"];
 344
 345                 // Fetching the title - or the first line
 346                 if ($item["title"] != "")
 347                         $title = $item["title"];
 348                 else {
 349                         $lines = explode("\n", $msg);
 350                         $title = $lines[0];
 351                 }
 352
 353                 if ($image != $msglink)
 354                         $html = trim(str_replace($msglink, "", $html));
 355
 356                 $title = trim(str_replace($msglink, "", $title));
 357
 358                 $msglink = gpluspost_original_url($msglink);
 359
 360                 if ($uid == 0)
 361                         $title = $item["author-name"].": ".$title;
 362
 363                 $title = str_replace("&", "&amp;", $title);
 364                 //$html = str_replace("&", "&amp;", $html);
 365
 366                 echo "\t".'<entry xmlns="http://www.w3.org/2005/Atom">'."\n";
 367                 echo "\t\t".'<title type="html" xml:space="preserve"><![CDATA['.$title."]]></title>\n";
 368                 echo "\t\t".'<link rel="alternate" type="text/html" href="'.$msglink.'" />'."\n";
 369                 // <link rel="enclosure" type="audio/mpeg" length="1337" href="http://example.org/audio/ph34r_my_podcast.mp3"/>
 370                 echo "\t\t<id>".$item["uri"]."</id>\n";
 371                 echo "\t\t<updated>".date("c", strtotime($item["edited"]))."</updated>\n";
 372                 echo "\t\t<published>".date("c", strtotime($item["created"]))."</published>\n";
 373                 echo "\t\t<author>\n\t\t\t<name><![CDATA[".$item["author-name"]."]]></name>\n";
 374                 echo "\t\t\t<uri>".$item["author-link"]."</uri>\n\t\t</author>\n";
 375                 //echo '<content type="image/png" src="http://media.example.org/the_beach.png"/>';
 376                 echo "\t\t".'<content type="html" xml:space="preserve" xml:base="'.$item["plink"].'"><![CDATA['.$html."]]></content>\n";
 377                 echo "\t</entry>\n";
 378         }
 379 }