mod/display.php

   1 <?php
   2
   3 use Friendica\App;
   4 use Friendica\Core\Config;
   5 use Friendica\Core\System;
   6 use Friendica\Database\DBM;
   7 use Friendica\Model\Contact;
   8 use Friendica\Protocol\DFRN;
   9
  10 function display_init(App $a) {
  11         if (Config::get('system','block_public') && !local_user() && !remote_user()) {
  12                 return;
  13         }
  14
  15         $nick = (($a->argc > 1) ? $a->argv[1] : '');
  16         $profiledata = array();
  17
  18         if ($a->argc == 3) {
  19                 if (substr($a->argv[2], -5) == '.atom') {
  20                         $item_id = substr($a->argv[2], 0, -5);
  21                         displayShowFeed($item_id, false);
  22                 }
  23         }
  24
  25         if ($a->argc == 4) {
  26                 if ($a->argv[3] == 'conversation.atom') {
  27                         $item_id = $a->argv[2];
  28                         displayShowFeed($item_id, true);
  29                 }
  30         }
  31
  32         $r = false;
  33
  34         // If there is only one parameter, then check if this parameter could be a guid
  35         if ($a->argc == 2) {
  36                 $nick = "";
  37                 $r = false;
  38
  39                 // Does the local user have this item?
  40                 if (local_user()) {
  41                         $r = dba::fetch_first("SELECT `id`, `parent`, `author-name`, `author-link`,
  42                                                 `author-avatar`, `network`, `body`, `uid`, `owner-link`
  43                                 FROM `item` WHERE `visible` AND NOT `deleted` AND NOT `moderated`
  44                                         AND `guid` = ? AND `uid` = ? LIMIT 1", $a->argv[1], local_user());
  45                         if (DBM::is_result($r)) {
  46                                 $nick = $a->user["nickname"];
  47                         }
  48                 }
  49
  50                 // Is it an item with uid=0?
  51                 if (!DBM::is_result($r)) {
  52                         $r = dba::fetch_first("SELECT `id`, `parent`, `author-name`, `author-link`,
  53                                                 `author-avatar`, `network`, `body`, `uid`, `owner-link`
  54                                 FROM `item` WHERE `visible` AND NOT `deleted` AND NOT `moderated`
  55                                         AND NOT `private` AND `uid` = 0
  56                                         AND `guid` = ? LIMIT 1", $a->argv[1]);
  57                 }
  58
  59                 if (!DBM::is_result($r)) {
  60                         $a->error = 404;
  61                         notice(t('Item not found.') . EOL);
  62                         return;
  63                 }
  64         } elseif (($a->argc == 3) && ($nick == 'feed-item')) {
  65                 $r = dba::fetch_first("SELECT `id`, `parent`, `author-name`, `author-link`,
  66                                         `author-avatar`, `network`, `body`, `uid`, `owner-link`
  67                         FROM `item` WHERE `visible` AND NOT `deleted` AND NOT `moderated`
  68                                 AND NOT `private` AND `uid` = 0
  69                                 AND `id` = ? LIMIT 1", $a->argv[2]);
  70         }
  71
  72         if (DBM::is_result($r)) {
  73                 if (strstr($_SERVER['HTTP_ACCEPT'], 'application/atom+xml')) {
  74                         logger('Directly serving XML for id '.$r["id"], LOGGER_DEBUG);
  75                         displayShowFeed($r["id"], false);
  76                 }
  77
  78                 if ($r["id"] != $r["parent"]) {
  79                         $r = dba::fetch_first("SELECT `id`, `author-name`, `author-link`, `author-avatar`, `network`, `body`, `uid`, `owner-link` FROM `item`
  80                                 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
  81                                         AND `id` = ?", $r["parent"]);
  82                 }
  83
  84                 $profiledata = display_fetchauthor($a, $r);
  85
  86                 if (strstr(normalise_link($profiledata["url"]), normalise_link(System::baseUrl()))) {
  87                         $nickname = str_replace(normalise_link(System::baseUrl())."/profile/", "", normalise_link($profiledata["url"]));
  88
  89                         if (($nickname != $a->user["nickname"])) {
  90                                 $r = dba::fetch_first("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
  91                                         INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
  92                                         WHERE `user`.`nickname` = ? AND `profile`.`is-default` AND `contact`.`self` LIMIT 1",
  93                                         $nickname
  94                                 );
  95                                 if (DBM::is_result($r)) {
  96                                         $profiledata = $r;
  97                                 }
  98                                 $profiledata["network"] = NETWORK_DFRN;
  99                         } else {
 100                                 $profiledata = array();
 101                         }
 102                 }
 103         }
 104
 105         profile_load($a, $nick, 0, $profiledata);
 106 }
 107
 108 function display_fetchauthor($a, $item) {
 109         $profiledata = array();
 110         $profiledata["uid"] = -1;
 111         $profiledata["nickname"] = $item["author-name"];
 112         $profiledata["name"] = $item["author-name"];
 113         $profiledata["picdate"] = "";
 114         $profiledata["photo"] = $item["author-avatar"];
 115         $profiledata["url"] = $item["author-link"];
 116         $profiledata["network"] = $item["network"];
 117
 118         // Check for a repeated message
 119         $skip = false;
 120         $body = trim($item["body"]);
 121
 122         // Skip if it isn't a pure repeated messages
 123         // Does it start with a share?
 124         if (!$skip && strpos($body, "[share") > 0) {
 125                 $skip = true;
 126         }
 127         // Does it end with a share?
 128         if (!$skip && (strlen($body) > (strrpos($body, "[/share]") + 8))) {
 129                 $skip = true;
 130         }
 131         if (!$skip) {
 132                 $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
 133                 // Skip if there is no shared message in there
 134                 if ($body == $attributes) {
 135                         $skip = true;
 136                 }
 137         }
 138
 139         if (!$skip) {
 140                 $author = "";
 141                 preg_match("/author='(.*?)'/ism", $attributes, $matches);
 142                 if ($matches[1] != "") {
 143                         $profiledata["name"] = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 144                 }
 145                 preg_match('/author="(.*?)"/ism', $attributes, $matches);
 146                 if ($matches[1] != "") {
 147                         $profiledata["name"] = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 148                 }
 149                 $profile = "";
 150                 preg_match("/profile='(.*?)'/ism", $attributes, $matches);
 151                 if ($matches[1] != "") {
 152                         $profiledata["url"] = $matches[1];
 153                 }
 154                 preg_match('/profile="(.*?)"/ism', $attributes, $matches);
 155                 if ($matches[1] != "") {
 156                         $profiledata["url"] = $matches[1];
 157                 }
 158                 $avatar = "";
 159                 preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
 160                 if ($matches[1] != "") {
 161                         $profiledata["photo"] = $matches[1];
 162                 }
 163                 preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
 164                 if ($matches[1] != "") {
 165                         $profiledata["photo"] = $matches[1];
 166                 }
 167                 $profiledata["nickname"] = $profiledata["name"];
 168                 $profiledata["network"] = GetProfileUsername($profiledata["url"], "", false, true);
 169
 170                 $profiledata["address"] = "";
 171                 $profiledata["about"] = "";
 172         }
 173
 174         $profiledata = Contact::getDetailsByURL($profiledata["url"], local_user(), $profiledata);
 175
 176         $profiledata["photo"] = System::removedBaseUrl($profiledata["photo"]);
 177
 178         if (local_user()) {
 179                 if (in_array($profiledata["network"], array(NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS))) {
 180                         $profiledata["remoteconnect"] = System::baseUrl()."/follow?url=".urlencode($profiledata["url"]);
 181                 }
 182         } elseif ($profiledata["network"] == NETWORK_DFRN) {
 183                 $connect = str_replace("/profile/", "/dfrn_request/", $profiledata["url"]);
 184                 $profiledata["remoteconnect"] = $connect;
 185         }
 186
 187         return($profiledata);
 188 }
 189
 190 function display_content(App $a, $update = false, $update_uid = 0) {
 191         if (Config::get('system','block_public') && !local_user() && !remote_user()) {
 192                 notice(t('Public access denied.') . EOL);
 193                 return;
 194         }
 195
 196         require_once 'include/security.php';
 197         require_once 'include/conversation.php';
 198         require_once 'include/acl_selectors.php';
 199
 200         $o = '';
 201
 202         if ($update) {
 203                 $item_id = $_REQUEST['item_id'];
 204                 $item = dba::select('item', ['uid', 'parent'], ['id' => $item_id], ['limit' => 1]);
 205                 $a->profile = array('uid' => intval($item['uid']), 'profile_uid' => intval($item['uid']));
 206                 $item_parent = $item['parent'];
 207         } else {
 208                 $item_id = (($a->argc > 2) ? $a->argv[2] : 0);
 209
 210                 if ($a->argc == 2) {
 211                         $item_parent = 0;
 212
 213                         if (local_user()) {
 214                                 $r = dba::fetch_first("SELECT `id`, `parent` FROM `item`
 215                                         WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
 216                                                 AND `guid` = ? AND `uid` = ?", $a->argv[1], local_user());
 217                                 if (DBM::is_result($r)) {
 218                                         $item_id = $r["id"];
 219                                         $item_parent = $r["parent"];
 220                                 }
 221                         }
 222
 223                         if ($item_parent == 0) {
 224                                 $r = dba::fetch_first("SELECT `item`.`id`, `item`.`parent` FROM `item`
 225                                         WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
 226                                                 AND NOT `item`.`private` AND `item`.`uid` = 0
 227                                                 AND `item`.`guid` = ?", $a->argv[1]);
 228                                 if (DBM::is_result($r)) {
 229                                         $item_id = $r["id"];
 230                                         $item_parent = $r["parent"];
 231                                 }
 232                         }
 233                 }
 234         }
 235
 236         if (!$item_id) {
 237                 $a->error = 404;
 238                 notice(t('Item not found.').EOL);
 239                 return;
 240         }
 241
 242         // We are displaying an "alternate" link if that post was public. See issue 2864
 243         $is_public = dba::exists('item', array('id' => $item_id, 'private' => false));
 244         if ($is_public) {
 245                 // For the atom feed the nickname doesn't matter at all, we only need the item id.
 246                 $alternate = System::baseUrl().'/display/feed-item/'.$item_id.'.atom';
 247                 $conversation = System::baseUrl().'/display/feed-item/'.$item_parent.'/conversation.atom';
 248         } else {
 249                 $alternate = '';
 250                 $conversation = '';
 251         }
 252
 253         $a->page['htmlhead'] .= replace_macros(get_markup_template('display-head.tpl'),
 254                                 array('$alternate' => $alternate,
 255                                         '$conversation' => $conversation));
 256
 257         $groups = array();
 258
 259         $contact = null;
 260         $remote_contact = false;
 261
 262         $contact_id = 0;
 263
 264         if (x($_SESSION, 'remote') && is_array($_SESSION['remote'])) {
 265                 foreach ($_SESSION['remote'] as $v) {
 266                         if ($v['uid'] == $a->profile['uid']) {
 267                                 $contact_id = $v['cid'];
 268                                 break;
 269                         }
 270                 }
 271         }
 272
 273         if ($contact_id) {
 274                 $groups = init_groups_visitor($contact_id);
 275                 $r = dba::fetch_first("SELECT * FROM `contact` WHERE `id` = ? AND `uid` = ? LIMIT 1",
 276                         $contact_id,
 277                         $a->profile['uid']
 278                 );
 279                 if (DBM::is_result($r)) {
 280                         $contact = $r;
 281                         $remote_contact = true;
 282                 }
 283         }
 284
 285         if (!$remote_contact) {
 286                 if (local_user()) {
 287                         $contact_id = $_SESSION['cid'];
 288                         $contact = $a->contact;
 289                 }
 290         }
 291
 292         $r = dba::fetch_first("SELECT * FROM `contact` WHERE `uid` = ? AND `self` LIMIT 1", $a->profile['uid']);
 293         if (DBM::is_result($r)) {
 294                 $a->page_contact = $r;
 295         }
 296         $is_owner = (local_user() && (in_array($a->profile['profile_uid'], [local_user(), 0])) ? true : false);
 297
 298         if (x($a->profile, 'hidewall') && !$is_owner && !$remote_contact) {
 299                 notice(t('Access to this profile has been restricted.') . EOL);
 300                 return;
 301         }
 302
 303         // We need the editor here to be able to reshare an item.
 304         if ($is_owner) {
 305                 $x = array(
 306                         'is_owner' => true,
 307                         'allow_location' => $a->user['allow_location'],
 308                         'default_location' => $a->user['default-location'],
 309                         'nickname' => $a->user['nickname'],
 310                         'lockstate' => (is_array($a->user) && (strlen($a->user['allow_cid']) || strlen($a->user['allow_gid']) || strlen($a->user['deny_cid']) || strlen($a->user['deny_gid'])) ? 'lock' : 'unlock'),
 311                         'acl' => populate_acl($a->user, true),
 312                         'bang' => '',
 313                         'visitor' => 'block',
 314                         'profile_uid' => local_user(),
 315                         'acl_data' => construct_acl_data($a, $a->user), // For non-Javascript ACL selector
 316                 );
 317                 $o .= status_editor($a,$x,0,true);
 318         }
 319
 320         $sql_extra = item_permissions_sql($a->profile['uid'], $remote_contact, $groups);
 321
 322         if ($update) {
 323                 $r = dba::p("SELECT `id` FROM `item` WHERE
 324                         `item`.`parent` = (SELECT `parent` FROM `item` WHERE `id` = ?)
 325                         $sql_extra AND `unseen`",
 326                         $item_id
 327                 );
 328
 329                 if (dba::num_rows($r) == 0) {
 330                         return '';
 331                 }
 332         }
 333
 334         $r = dba::p(item_query()."AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `id` = ?)
 335                 $sql_extra
 336                 ORDER BY `parent` DESC, `gravity` ASC, `id` ASC",
 337                 $item_id
 338         );
 339
 340         if (!DBM::is_result($r)) {
 341                 notice(t('Item not found.') . EOL);
 342                 return $o;
 343         }
 344
 345         $s = dba::inArray($r);
 346
 347         if (local_user() && (local_user() == $a->profile['uid'])) {
 348                 $unseen = dba::select('item', array('id'), array('parent' => $s[0]['parent'], 'unseen' => true), array('limit' => 1));
 349                 if (DBM::is_result($unseen)) {
 350                         dba::update('item', array('unseen' => false), array('parent' => $s[0]['parent'], 'unseen' => true));
 351                 }
 352         }
 353
 354         $items = conv_sort($s, "`commented`");
 355
 356         if (!$update) {
 357                 $o .= "<script> var netargs = '?f=&item_id=" . $item_id . "'; </script>";
 358         }
 359         $o .= conversation($a, $items, 'display', $update_uid);
 360
 361         // Preparing the meta header
 362         require_once 'include/bbcode.php';
 363         require_once 'include/html2plain.php';
 364         $description = trim(html2plain(bbcode($s[0]["body"], false, false), 0, true));
 365         $title = trim(html2plain(bbcode($s[0]["title"], false, false), 0, true));
 366         $author_name = $s[0]["author-name"];
 367
 368         $image = $a->remove_baseurl($s[0]["author-thumb"]);
 369
 370         if ($title == "") {
 371                 $title = $author_name;
 372         }
 373
 374         // Limit the description to 160 characters
 375         if (strlen($description) > 160) {
 376                 $description = substr($description, 0, 157) . '...';
 377         }
 378
 379         $description = htmlspecialchars($description, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 380         $title = htmlspecialchars($title, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 381         $author_name = htmlspecialchars($author_name, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 382
 383         //<meta name="keywords" content="">
 384         $a->page['htmlhead'] .= '<meta name="author" content="'.$author_name.'" />'."\n";
 385         $a->page['htmlhead'] .= '<meta name="title" content="'.$title.'" />'."\n";
 386         $a->page['htmlhead'] .= '<meta name="fulltitle" content="'.$title.'" />'."\n";
 387         $a->page['htmlhead'] .= '<meta name="description" content="'.$description.'" />'."\n";
 388
 389         // Schema.org microdata
 390         $a->page['htmlhead'] .= '<meta itemprop="name" content="'.$title.'" />'."\n";
 391         $a->page['htmlhead'] .= '<meta itemprop="description" content="'.$description.'" />'."\n";
 392         $a->page['htmlhead'] .= '<meta itemprop="image" content="'.$image.'" />'."\n";
 393         $a->page['htmlhead'] .= '<meta itemprop="author" content="'.$author_name.'" />'."\n";
 394
 395         // Twitter cards
 396         $a->page['htmlhead'] .= '<meta name="twitter:card" content="summary" />'."\n";
 397         $a->page['htmlhead'] .= '<meta name="twitter:title" content="'.$title.'" />'."\n";
 398         $a->page['htmlhead'] .= '<meta name="twitter:description" content="'.$description.'" />'."\n";
 399         $a->page['htmlhead'] .= '<meta name="twitter:image" content="'.System::baseUrl().'/'.$image.'" />'."\n";
 400         $a->page['htmlhead'] .= '<meta name="twitter:url" content="'.$s[0]["plink"].'" />'."\n";
 401
 402         // Dublin Core
 403         $a->page['htmlhead'] .= '<meta name="DC.title" content="'.$title.'" />'."\n";
 404         $a->page['htmlhead'] .= '<meta name="DC.description" content="'.$description.'" />'."\n";
 405
 406         // Open Graph
 407         $a->page['htmlhead'] .= '<meta property="og:type" content="website" />'."\n";
 408         $a->page['htmlhead'] .= '<meta property="og:title" content="'.$title.'" />'."\n";
 409         $a->page['htmlhead'] .= '<meta property="og:image" content="'.System::baseUrl().'/'.$image.'" />'."\n";
 410         $a->page['htmlhead'] .= '<meta property="og:url" content="'.$s[0]["plink"].'" />'."\n";
 411         $a->page['htmlhead'] .= '<meta property="og:description" content="'.$description.'" />'."\n";
 412         $a->page['htmlhead'] .= '<meta name="og:article:author" content="'.$author_name.'" />'."\n";
 413         // article:tag
 414
 415         return $o;
 416 }
 417
 418 function displayShowFeed($item_id, $conversation) {
 419         $xml = DFRN::itemFeed($item_id, $conversation);
 420         if ($xml == '') {
 421                 http_status_exit(500);
 422         }
 423         header("Content-type: application/atom+xml");
 424         echo $xml;
 425         killme();
 426 }