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 `allow_cid` = ''  AND `allow_gid` = ''
  56                                         AND `deny_cid`  = '' AND `deny_gid`  = ''
  57                                         AND NOT `private` AND `uid` = 0
  58                                         AND `guid` = ? LIMIT 1", $a->argv[1]);
  59                 }
  60
  61                 if (!DBM::is_result($r)) {
  62                         $a->error = 404;
  63                         notice(t('Item not found.') . EOL);
  64                         return;
  65                 }
  66         } elseif (($a->argc == 3) && ($nick == 'feed-item')) {
  67                 $r = dba::fetch_first("SELECT `id`, `parent`, `author-name`, `author-link`,
  68                                         `author-avatar`, `network`, `body`, `uid`, `owner-link`
  69                         FROM `item` WHERE `visible` AND NOT `deleted` AND NOT `moderated`
  70                                 AND `allow_cid` = ''  AND `allow_gid` = ''
  71                                 AND `deny_cid`  = '' AND `deny_gid`  = ''
  72                                 AND NOT `private` AND `uid` = 0
  73                                 AND `id` = ? LIMIT 1", $a->argv[2]);
  74         }
  75
  76         if (DBM::is_result($r)) {
  77                 if (strstr($_SERVER['HTTP_ACCEPT'], 'application/atom+xml')) {
  78                         logger('Directly serving XML for id '.$r["id"], LOGGER_DEBUG);
  79                         displayShowFeed($r["id"], false);
  80                 }
  81
  82                 if ($r["id"] != $r["parent"]) {
  83                         $r = dba::fetch_first("SELECT `id`, `author-name`, `author-link`, `author-avatar`, `network`, `body`, `uid`, `owner-link` FROM `item`
  84                                 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
  85                                         AND `id` = ?", $r["parent"]);
  86                 }
  87
  88                 $profiledata = display_fetchauthor($a, $r);
  89
  90                 if (strstr(normalise_link($profiledata["url"]), normalise_link(System::baseUrl()))) {
  91                         $nickname = str_replace(normalise_link(System::baseUrl())."/profile/", "", normalise_link($profiledata["url"]));
  92
  93                         if (($nickname != $a->user["nickname"])) {
  94                                 $r = dba::fetch_first("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
  95                                         INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
  96                                         WHERE `user`.`nickname` = ? AND `profile`.`is-default` AND `contact`.`self` LIMIT 1",
  97                                         $nickname
  98                                 );
  99                                 if (DBM::is_result($r)) {
 100                                         $profiledata = $r;
 101                                 }
 102                                 $profiledata["network"] = NETWORK_DFRN;
 103                         } else {
 104                                 $profiledata = array();
 105                         }
 106                 }
 107         }
 108
 109         profile_load($a, $nick, 0, $profiledata);
 110 }
 111
 112 function display_fetchauthor($a, $item) {
 113         $profiledata = array();
 114         $profiledata["uid"] = -1;
 115         $profiledata["nickname"] = $item["author-name"];
 116         $profiledata["name"] = $item["author-name"];
 117         $profiledata["picdate"] = "";
 118         $profiledata["photo"] = $item["author-avatar"];
 119         $profiledata["url"] = $item["author-link"];
 120         $profiledata["network"] = $item["network"];
 121
 122         // Check for a repeated message
 123         $skip = false;
 124         $body = trim($item["body"]);
 125
 126         // Skip if it isn't a pure repeated messages
 127         // Does it start with a share?
 128         if (!$skip && strpos($body, "[share") > 0) {
 129                 $skip = true;
 130         }
 131         // Does it end with a share?
 132         if (!$skip && (strlen($body) > (strrpos($body, "[/share]") + 8))) {
 133                 $skip = true;
 134         }
 135         if (!$skip) {
 136                 $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
 137                 // Skip if there is no shared message in there
 138                 if ($body == $attributes) {
 139                         $skip = true;
 140                 }
 141         }
 142
 143         if (!$skip) {
 144                 $author = "";
 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                 preg_match('/author="(.*?)"/ism', $attributes, $matches);
 150                 if ($matches[1] != "") {
 151                         $profiledata["name"] = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 152                 }
 153                 $profile = "";
 154                 preg_match("/profile='(.*?)'/ism", $attributes, $matches);
 155                 if ($matches[1] != "") {
 156                         $profiledata["url"] = $matches[1];
 157                 }
 158                 preg_match('/profile="(.*?)"/ism', $attributes, $matches);
 159                 if ($matches[1] != "") {
 160                         $profiledata["url"] = $matches[1];
 161                 }
 162                 $avatar = "";
 163                 preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
 164                 if ($matches[1] != "") {
 165                         $profiledata["photo"] = $matches[1];
 166                 }
 167                 preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
 168                 if ($matches[1] != "") {
 169                         $profiledata["photo"] = $matches[1];
 170                 }
 171                 $profiledata["nickname"] = $profiledata["name"];
 172                 $profiledata["network"] = GetProfileUsername($profiledata["url"], "", false, true);
 173
 174                 $profiledata["address"] = "";
 175                 $profiledata["about"] = "";
 176         }
 177
 178         $profiledata = Contact::getDetailsByURL($profiledata["url"], local_user(), $profiledata);
 179
 180         $profiledata["photo"] = System::removedBaseUrl($profiledata["photo"]);
 181
 182         if (local_user()) {
 183                 if (in_array($profiledata["network"], array(NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS))) {
 184                         $profiledata["remoteconnect"] = System::baseUrl()."/follow?url=".urlencode($profiledata["url"]);
 185                 }
 186         } elseif ($profiledata["network"] == NETWORK_DFRN) {
 187                 $connect = str_replace("/profile/", "/dfrn_request/", $profiledata["url"]);
 188                 $profiledata["remoteconnect"] = $connect;
 189         }
 190
 191         return($profiledata);
 192 }
 193
 194 function display_content(App $a, $update = false, $update_uid = 0) {
 195         if (Config::get('system','block_public') && !local_user() && !remote_user()) {
 196                 notice(t('Public access denied.') . EOL);
 197                 return;
 198         }
 199
 200         require_once('include/security.php');
 201         require_once('include/conversation.php');
 202         require_once('include/acl_selectors.php');
 203
 204         $o = '';
 205
 206         if ($update) {
 207                 $item_id = $_REQUEST['item_id'];
 208                 $item = dba::select('item', ['uid'], ['id' => $item_id], ['limit' => 1]);
 209                 $a->profile = array('uid' => intval($item['uid']), 'profile_uid' => intval($item['uid']));
 210         } else {
 211                 $item_id = (($a->argc > 2) ? $a->argv[2] : 0);
 212
 213                 if ($a->argc == 2) {
 214                         $item_parent = 0;
 215
 216                         if (local_user()) {
 217                                 $r = dba::fetch_first("SELECT `id`, `parent` FROM `item`
 218                                         WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
 219                                                 AND `guid` = ? AND `uid` = ?", $a->argv[1], local_user());
 220                                 if (DBM::is_result($r)) {
 221                                         $item_id = $r["id"];
 222                                         $item_parent = $r["parent"];
 223                                 }
 224                         }
 225
 226                         if ($item_parent == 0) {
 227                                 $r = dba::fetch_first("SELECT `item`.`id`, `item`.`parent` FROM `item`
 228                                         WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
 229                                                 AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
 230                                                 AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
 231                                                 AND NOT `item`.`private` AND `item`.`uid` = 0
 232                                                 AND `item`.`guid` = ?", $a->argv[1]);
 233                                 if (DBM::is_result($r)) {
 234                                         $item_id = $r["id"];
 235                                         $item_parent = $r["parent"];
 236                                 }
 237                         }
 238                 }
 239         }
 240
 241         if (!$item_id) {
 242                 $a->error = 404;
 243                 notice(t('Item not found.').EOL);
 244                 return;
 245         }
 246
 247         // We are displaying an "alternate" link if that post was public. See issue 2864
 248         $is_public = dba::exists('item', array('id' => $item_id, 'private' => false));
 249         if ($is_public) {
 250                 // For the atom feed the nickname doesn't matter at all, we only need the item id.
 251                 $alternate = System::baseUrl().'/display/feed-item/'.$item_id.'.atom';
 252                 $conversation = System::baseUrl().'/display/feed-item/'.$item_parent.'/conversation.atom';
 253         } else {
 254                 $alternate = '';
 255                 $conversation = '';
 256         }
 257
 258         $a->page['htmlhead'] .= replace_macros(get_markup_template('display-head.tpl'),
 259                                 array('$alternate' => $alternate,
 260                                         '$conversation' => $conversation));
 261
 262         $groups = array();
 263
 264         $contact = null;
 265         $remote_contact = false;
 266
 267         $contact_id = 0;
 268
 269         if (is_array($_SESSION['remote'])) {
 270                 foreach ($_SESSION['remote'] as $v) {
 271                         if ($v['uid'] == $a->profile['uid']) {
 272                                 $contact_id = $v['cid'];
 273                                 break;
 274                         }
 275                 }
 276         }
 277
 278         if ($contact_id) {
 279                 $groups = init_groups_visitor($contact_id);
 280                 $r = dba::fetch_first("SELECT * FROM `contact` WHERE `id` = ? AND `uid` = ? LIMIT 1",
 281                         $contact_id,
 282                         $a->profile['uid']
 283                 );
 284                 if (DBM::is_result($r)) {
 285                         $contact = $r;
 286                         $remote_contact = true;
 287                 }
 288         }
 289
 290         if (!$remote_contact) {
 291                 if (local_user()) {
 292                         $contact_id = $_SESSION['cid'];
 293                         $contact = $a->contact;
 294                 }
 295         }
 296
 297         $r = dba::fetch_first("SELECT * FROM `contact` WHERE `uid` = ? AND `self` LIMIT 1", $a->profile['uid']);
 298         if (DBM::is_result($r)) {
 299                 $a->page_contact = $r;
 300         }
 301         $is_owner = (local_user() && (in_array($a->profile['profile_uid'], [local_user(), 0])) ? true : false);
 302
 303         if ($a->profile['hidewall'] && !$is_owner && !$remote_contact) {
 304                 notice(t('Access to this profile has been restricted.') . EOL);
 305                 return;
 306         }
 307
 308         // We need the editor here to be able to reshare an item.
 309         if ($is_owner) {
 310                 $x = array(
 311                         'is_owner' => true,
 312                         'allow_location' => $a->user['allow_location'],
 313                         'default_location' => $a->user['default-location'],
 314                         'nickname' => $a->user['nickname'],
 315                         'lockstate' => (is_array($a->user) && (strlen($a->user['allow_cid']) || strlen($a->user['allow_gid']) || strlen($a->user['deny_cid']) || strlen($a->user['deny_gid'])) ? 'lock' : 'unlock'),
 316                         'acl' => populate_acl($a->user, true),
 317                         'bang' => '',
 318                         'visitor' => 'block',
 319                         'profile_uid' => local_user(),
 320                         'acl_data' => construct_acl_data($a, $a->user), // For non-Javascript ACL selector
 321                 );
 322                 $o .= status_editor($a,$x,0,true);
 323         }
 324
 325         $sql_extra = item_permissions_sql($a->profile['uid'], $remote_contact, $groups);
 326
 327         if ($update) {
 328                 $r = dba::p("SELECT `id` FROM `item` WHERE
 329                         `item`.`parent` = (SELECT `parent` FROM `item` WHERE `id` = ?)
 330                         $sql_extra AND `unseen`",
 331                         $item_id
 332                 );
 333
 334                 if (dba::num_rows($r) == 0) {
 335                         return '';
 336                 }
 337         }
 338
 339         $r = dba::p(item_query()."AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `id` = ?)
 340                 $sql_extra
 341                 ORDER BY `parent` DESC, `gravity` ASC, `id` ASC",
 342                 $item_id
 343         );
 344
 345         if (!DBM::is_result($r)) {
 346                 notice(t('Item not found.') . EOL);
 347                 return $o;
 348         }
 349
 350         $s = dba::inArray($r);
 351
 352         if (local_user() && (local_user() == $a->profile['uid'])) {
 353                 $unseen = dba::select('item', array('id'), array('parent' => $s[0]['parent'], 'unseen' => true), array('limit' => 1));
 354                 if (DBM::is_result($unseen)) {
 355                         dba::update('item', array('unseen' => false), array('parent' => $s[0]['parent'], 'unseen' => true));
 356                 }
 357         }
 358
 359         $items = conv_sort($s, "`commented`");
 360
 361         if (!$update) {
 362                 $o .= "<script> var netargs = '?f=&item_id=" . $item_id . "'; </script>";
 363         }
 364         $o .= conversation($a, $items, 'display', $update_uid);
 365
 366         // Preparing the meta header
 367         require_once('include/bbcode.php');
 368         require_once("include/html2plain.php");
 369         $description = trim(html2plain(bbcode($s[0]["body"], false, false), 0, true));
 370         $title = trim(html2plain(bbcode($s[0]["title"], false, false), 0, true));
 371         $author_name = $s[0]["author-name"];
 372
 373         $image = $a->remove_baseurl($s[0]["author-thumb"]);
 374
 375         if ($title == "") {
 376                 $title = $author_name;
 377         }
 378
 379         // Limit the description to 160 characters
 380         if (strlen($description) > 160) {
 381                 $description = substr($description, 0, 157) . '...';
 382         }
 383
 384         $description = htmlspecialchars($description, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 385         $title = htmlspecialchars($title, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 386         $author_name = htmlspecialchars($author_name, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 387
 388         //<meta name="keywords" content="">
 389         $a->page['htmlhead'] .= '<meta name="author" content="'.$author_name.'" />'."\n";
 390         $a->page['htmlhead'] .= '<meta name="title" content="'.$title.'" />'."\n";
 391         $a->page['htmlhead'] .= '<meta name="fulltitle" content="'.$title.'" />'."\n";
 392         $a->page['htmlhead'] .= '<meta name="description" content="'.$description.'" />'."\n";
 393
 394         // Schema.org microdata
 395         $a->page['htmlhead'] .= '<meta itemprop="name" content="'.$title.'" />'."\n";
 396         $a->page['htmlhead'] .= '<meta itemprop="description" content="'.$description.'" />'."\n";
 397         $a->page['htmlhead'] .= '<meta itemprop="image" content="'.$image.'" />'."\n";
 398         $a->page['htmlhead'] .= '<meta itemprop="author" content="'.$author_name.'" />'."\n";
 399
 400         // Twitter cards
 401         $a->page['htmlhead'] .= '<meta name="twitter:card" content="summary" />'."\n";
 402         $a->page['htmlhead'] .= '<meta name="twitter:title" content="'.$title.'" />'."\n";
 403         $a->page['htmlhead'] .= '<meta name="twitter:description" content="'.$description.'" />'."\n";
 404         $a->page['htmlhead'] .= '<meta name="twitter:image" content="'.System::baseUrl().'/'.$image.'" />'."\n";
 405         $a->page['htmlhead'] .= '<meta name="twitter:url" content="'.$s[0]["plink"].'" />'."\n";
 406
 407         // Dublin Core
 408         $a->page['htmlhead'] .= '<meta name="DC.title" content="'.$title.'" />'."\n";
 409         $a->page['htmlhead'] .= '<meta name="DC.description" content="'.$description.'" />'."\n";
 410
 411         // Open Graph
 412         $a->page['htmlhead'] .= '<meta property="og:type" content="website" />'."\n";
 413         $a->page['htmlhead'] .= '<meta property="og:title" content="'.$title.'" />'."\n";
 414         $a->page['htmlhead'] .= '<meta property="og:image" content="'.System::baseUrl().'/'.$image.'" />'."\n";
 415         $a->page['htmlhead'] .= '<meta property="og:url" content="'.$s[0]["plink"].'" />'."\n";
 416         $a->page['htmlhead'] .= '<meta property="og:description" content="'.$description.'" />'."\n";
 417         $a->page['htmlhead'] .= '<meta name="og:article:author" content="'.$author_name.'" />'."\n";
 418         // article:tag
 419
 420         return $o;
 421 }
 422
 423 function displayShowFeed($item_id, $conversation) {
 424         $xml = DFRN::itemFeed($item_id, $conversation);
 425         if ($xml == '') {
 426                 http_status_exit(500);
 427         }
 428         header("Content-type: application/atom+xml");
 429         echo $xml;
 430         killme();
 431 }