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
  12         if ((Config::get('system','block_public')) && (! local_user()) && (! remote_user())) {
  13                 return;
  14         }
  15
  16         $nick = (($a->argc > 1) ? $a->argv[1] : '');
  17         $profiledata = array();
  18
  19         if ($a->argc == 3) {
  20                 if (substr($a->argv[2], -5) == '.atom') {
  21                         $item_id = substr($a->argv[2], 0, -5);
  22                         displayShowFeed($item_id, false);
  23                 }
  24         }
  25
  26         if ($a->argc == 4) {
  27                 if ($a->argv[3] == 'conversation.atom') {
  28                         $item_id = $a->argv[2];
  29                         displayShowFeed($item_id, true);
  30                 }
  31         }
  32
  33         $r = false;
  34
  35         // If there is only one parameter, then check if this parameter could be a guid
  36         if ($a->argc == 2) {
  37                 $nick = "";
  38                 $r = false;
  39
  40                 // Does the local user have this item?
  41                 if (local_user()) {
  42                         $r = dba::fetch_first("SELECT `id`, `parent`, `author-name`, `author-link`,
  43                                                 `author-avatar`, `network`, `body`, `uid`, `owner-link`
  44                                 FROM `item` WHERE `visible` AND NOT `deleted` AND NOT `moderated`
  45                                         AND `guid` = ? AND `uid` = ? LIMIT 1", $a->argv[1], local_user());
  46                         if (DBM::is_result($r)) {
  47                                 $nick = $a->user["nickname"];
  48                         }
  49                 }
  50
  51                 // Is it an item with uid=0?
  52                 if (!DBM::is_result($r)) {
  53                         $r = dba::fetch_first("SELECT `id`, `parent`, `author-name`, `author-link`,
  54                                                 `author-avatar`, `network`, `body`, `uid`, `owner-link`
  55                                 FROM `item` WHERE `visible` AND NOT `deleted` AND NOT `moderated`
  56                                         AND `allow_cid` = ''  AND `allow_gid` = ''
  57                                         AND `deny_cid`  = '' AND `deny_gid`  = ''
  58                                         AND NOT `private` AND `uid` = 0
  59                                         AND `guid` = ? LIMIT 1", $a->argv[1]);
  60                 }
  61
  62                 // Or is it anywhere on the server?
  63                 if (!DBM::is_result($r)) {
  64                         $r = dba::fetch_first("SELECT `item`.`id`, `item`.`parent`, `item`.`author-name`, `item`.`author-link`,
  65                                 `item`.`author-avatar`, `item`.`network`, `item`.`body`, `item`.`uid`, `item`.`owner-link`
  66                                 FROM `item` STRAIGHT_JOIN `user` ON `user`.`uid` = `item`.`uid`
  67                                 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
  68                                         AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
  69                                         AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
  70                                         AND NOT `item`.`private` AND NOT `user`.`hidewall`
  71                                         AND `item`.`guid` = ? LIMIT 1", $a->argv[1]);
  72                 }
  73
  74                 if (!DBM::is_result($r)) {
  75                         $a->error = 404;
  76                         notice(t('Item not found.') . EOL);
  77                         return;
  78                 }
  79         } elseif (($a->argc == 3) && ($nick == '_feed_')) {
  80                 $r = dba::fetch_first("SELECT `id`, `parent`, `author-name`, `author-link`,
  81                                         `author-avatar`, `network`, `body`, `uid`, `owner-link`
  82                         FROM `item` WHERE `visible` AND NOT `deleted` AND NOT `moderated`
  83                                 AND `allow_cid` = ''  AND `allow_gid` = ''
  84                                 AND `deny_cid`  = '' AND `deny_gid`  = ''
  85                                 AND NOT `private` AND `uid` = 0
  86                                 AND `id` = ? LIMIT 1", $a->argv[2]);
  87         }
  88
  89         if (DBM::is_result($r)) {
  90                 if (strstr($_SERVER['HTTP_ACCEPT'], 'application/atom+xml')) {
  91                         logger('Directly serving XML for id '.$r["id"], LOGGER_DEBUG);
  92                         displayShowFeed($r["id"], false);
  93                 }
  94
  95                 if ($r["id"] != $r["parent"]) {
  96                         $r = dba::fetch_first("SELECT `id`, `author-name`, `author-link`, `author-avatar`, `network`, `body`, `uid`, `owner-link` FROM `item`
  97                                 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
  98                                         AND `id` = ?", $r["parent"]);
  99                 }
 100
 101                 $profiledata = display_fetchauthor($a, $r);
 102
 103                 if (strstr(normalise_link($profiledata["url"]), normalise_link(System::baseUrl()))) {
 104                         $nickname = str_replace(normalise_link(System::baseUrl())."/profile/", "", normalise_link($profiledata["url"]));
 105
 106                         if (($nickname != $a->user["nickname"])) {
 107                                 $r = dba::fetch_first("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
 108                                         INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
 109                                         WHERE `user`.`nickname` = ? AND `profile`.`is-default` AND `contact`.`self` LIMIT 1",
 110                                         $nickname
 111                                 );
 112                                 if (DBM::is_result($r)) {
 113                                         $profiledata = $r;
 114                                 }
 115                                 $profiledata["network"] = NETWORK_DFRN;
 116                         } else {
 117                                 $profiledata = array();
 118                         }
 119                 }
 120         }
 121
 122         profile_load($a, $nick, 0, $profiledata);
 123 }
 124
 125 function display_fetchauthor($a, $item) {
 126
 127         $profiledata = array();
 128         $profiledata["uid"] = -1;
 129         $profiledata["nickname"] = $item["author-name"];
 130         $profiledata["name"] = $item["author-name"];
 131         $profiledata["picdate"] = "";
 132         $profiledata["photo"] = $item["author-avatar"];
 133         $profiledata["url"] = $item["author-link"];
 134         $profiledata["network"] = $item["network"];
 135
 136         // Check for a repeated message
 137         $skip = false;
 138         $body = trim($item["body"]);
 139
 140         // Skip if it isn't a pure repeated messages
 141         // Does it start with a share?
 142         if (!$skip && strpos($body, "[share") > 0) {
 143                 $skip = true;
 144         }
 145         // Does it end with a share?
 146         if (!$skip && (strlen($body) > (strrpos($body, "[/share]") + 8))) {
 147                 $skip = true;
 148         }
 149         if (!$skip) {
 150                 $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
 151                 // Skip if there is no shared message in there
 152                 if ($body == $attributes) {
 153                         $skip = true;
 154                 }
 155         }
 156
 157         if (!$skip) {
 158                 $author = "";
 159                 preg_match("/author='(.*?)'/ism", $attributes, $matches);
 160                 if ($matches[1] != "") {
 161                         $profiledata["name"] = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 162                 }
 163                 preg_match('/author="(.*?)"/ism', $attributes, $matches);
 164                 if ($matches[1] != "") {
 165                         $profiledata["name"] = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 166                 }
 167                 $profile = "";
 168                 preg_match("/profile='(.*?)'/ism", $attributes, $matches);
 169                 if ($matches[1] != "") {
 170                         $profiledata["url"] = $matches[1];
 171                 }
 172                 preg_match('/profile="(.*?)"/ism', $attributes, $matches);
 173                 if ($matches[1] != "") {
 174                         $profiledata["url"] = $matches[1];
 175                 }
 176                 $avatar = "";
 177                 preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
 178                 if ($matches[1] != "") {
 179                         $profiledata["photo"] = $matches[1];
 180                 }
 181                 preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
 182                 if ($matches[1] != "") {
 183                         $profiledata["photo"] = $matches[1];
 184                 }
 185                 $profiledata["nickname"] = $profiledata["name"];
 186                 $profiledata["network"] = GetProfileUsername($profiledata["url"], "", false, true);
 187
 188                 $profiledata["address"] = "";
 189                 $profiledata["about"] = "";
 190         }
 191
 192         $profiledata = Contact::getDetailsByURL($profiledata["url"], local_user(), $profiledata);
 193
 194         $profiledata["photo"] = System::removedBaseUrl($profiledata["photo"]);
 195
 196         if (local_user()) {
 197                 if (in_array($profiledata["network"], array(NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS))) {
 198                         $profiledata["remoteconnect"] = System::baseUrl()."/follow?url=".urlencode($profiledata["url"]);
 199                 }
 200         } elseif ($profiledata["network"] == NETWORK_DFRN) {
 201                 $connect = str_replace("/profile/", "/dfrn_request/", $profiledata["url"]);
 202                 $profiledata["remoteconnect"] = $connect;
 203         }
 204
 205         return($profiledata);
 206 }
 207
 208 function display_content(App $a, $update = false, $update_uid = 0) {
 209
 210         if (Config::get('system','block_public') && !local_user() && !remote_user()) {
 211                 notice(t('Public access denied.') . EOL);
 212                 return;
 213         }
 214
 215         require_once('include/security.php');
 216         require_once('include/conversation.php');
 217         require_once('include/acl_selectors.php');
 218
 219
 220         $o = '';
 221
 222         if ($update) {
 223                 $nick = $_REQUEST['nick'];
 224         } else {
 225                 $nick = (($a->argc > 1) ? $a->argv[1] : '');
 226         }
 227
 228         if ($update) {
 229                 $item_id = $_REQUEST['item_id'];
 230                 $item = dba::select('item', ['uid'], ['id' => $item_id], ['limit' => 1]);
 231                 $a->profile = array('uid' => intval($item['uid']), 'profile_uid' => intval($item['uid']));
 232         } else {
 233                 $item_id = (($a->argc > 2) ? $a->argv[2] : 0);
 234
 235                 if ($a->argc == 2) {
 236                         $item_parent = 0;
 237                         $nick = "";
 238
 239                         if (local_user()) {
 240                                 $r = dba::fetch_first("SELECT `id`, `parent` FROM `item`
 241                                         WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
 242                                                 AND `guid` = ? AND `uid` = ?", $a->argv[1], local_user());
 243                                 if (DBM::is_result($r)) {
 244                                         $item_id = $r["id"];
 245                                         $item_parent = $r["parent"];
 246                                         $nick = $a->user["nickname"];
 247                                 }
 248                         }
 249
 250                         if ($item_parent == 0) {
 251                                 $r = dba::fetch_first("SELECT `item`.`id`, `item`.`parent` FROM `item`
 252                                         WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
 253                                                 AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
 254                                                 AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
 255                                                 AND NOT `item`.`private` AND `item`.`uid` = 0
 256                                                 AND `item`.`guid` = ?", $a->argv[1]);
 257                                 if (DBM::is_result($r)) {
 258                                         $item_id = $r["id"];
 259                                         $item_parent = $r["parent"];
 260                                 }
 261                         }
 262                         if ($item_parent == 0) {
 263                                 $r = dba::fetch_first("SELECT `user`.`nickname`, `item`.`id`, `item`.`parent` FROM `item` STRAIGHT_JOIN `user` ON `user`.`uid` = `item`.`uid`
 264                                         WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
 265                                                 AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
 266                                                 AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
 267                                                 AND NOT `item`.`private` AND NOT `user`.`hidewall`
 268                                                 AND `item`.`guid` = ?", $a->argv[1]);
 269                                 if (DBM::is_result($r)) {
 270                                         $item_id = $r["id"];
 271                                         $item_parent = $r["parent"];
 272                                         $nick = $r["nickname"];
 273                                 }
 274                         }
 275                 }
 276         }
 277
 278         if ($item_id && !is_numeric($item_id)) {
 279                 $r = dba::select('item', array('id', 'parent'), array('uri' => $item_id, 'uid' => $a->profile['uid']), array('limit' => 1));
 280                 if (DBM::is_result($r)) {
 281                         $item_id = $r["id"];
 282                         $item_parent = $r["parent"];
 283                 } else {
 284                         $item_id = false;
 285                 }
 286         }
 287
 288         if (!$item_id) {
 289                 $a->error = 404;
 290                 notice(t('Item not found.').EOL);
 291                 return;
 292         }
 293
 294         // We are displaying an "alternate" link if that post was public. See issue 2864
 295         $is_public = dba::exists('item', array('id' => $item_id, 'private' => false));
 296         if ($is_public) {
 297                 // For the atom feed the nickname doesn't matter at all, we only need the item id.
 298                 if ($nick == '') {
 299                         $nick = '_feed_';
 300                 }
 301                 $alternate = System::baseUrl().'/display/'.$nick.'/'.$item_id.'.atom';
 302                 $conversation = System::baseUrl().'/display/'.$nick.'/'.$item_parent.'/conversation.atom';
 303         } else {
 304                 $alternate = '';
 305                 $conversation = '';
 306         }
 307
 308         $a->page['htmlhead'] .= replace_macros(get_markup_template('display-head.tpl'),
 309                                 array('$alternate' => $alternate,
 310                                         '$conversation' => $conversation));
 311
 312         $groups = array();
 313
 314         $contact = null;
 315         $remote_contact = false;
 316
 317         $contact_id = 0;
 318
 319         if (is_array($_SESSION['remote'])) {
 320                 foreach ($_SESSION['remote'] as $v) {
 321                         if ($v['uid'] == $a->profile['uid']) {
 322                                 $contact_id = $v['cid'];
 323                                 break;
 324                         }
 325                 }
 326         }
 327
 328         if ($contact_id) {
 329                 $groups = init_groups_visitor($contact_id);
 330                 $r = dba::fetch_first("SELECT * FROM `contact` WHERE `id` = ? AND `uid` = ? LIMIT 1",
 331                         $contact_id,
 332                         $a->profile['uid']
 333                 );
 334                 if (DBM::is_result($r)) {
 335                         $contact = $r;
 336                         $remote_contact = true;
 337                 }
 338         }
 339
 340         if (!$remote_contact) {
 341                 if (local_user()) {
 342                         $contact_id = $_SESSION['cid'];
 343                         $contact = $a->contact;
 344                 }
 345         }
 346
 347         $r = dba::fetch_first("SELECT * FROM `contact` WHERE `uid` = ? AND `self` LIMIT 1", $a->profile['uid']);
 348         if (DBM::is_result($r)) {
 349                 $a->page_contact = $r;
 350         }
 351         $is_owner = (local_user() && (local_user() == $a->profile['profile_uid']) ? true : false);
 352
 353         if ($a->profile['hidewall'] && !$is_owner && !$remote_contact) {
 354                 notice(t('Access to this profile has been restricted.') . EOL);
 355                 return;
 356         }
 357
 358         // We need the editor here to be able to reshare an item.
 359
 360         if ($is_owner) {
 361                 $x = array(
 362                         'is_owner' => true,
 363                         'allow_location' => $a->user['allow_location'],
 364                         'default_location' => $a->user['default-location'],
 365                         'nickname' => $a->user['nickname'],
 366                         'lockstate' => ( (is_array($a->user)) && ((strlen($a->user['allow_cid'])) || (strlen($a->user['allow_gid'])) || (strlen($a->user['deny_cid'])) || (strlen($a->user['deny_gid']))) ? 'lock' : 'unlock'),
 367                         'acl' => populate_acl($a->user, true),
 368                         'bang' => '',
 369                         'visitor' => 'block',
 370                         'profile_uid' => local_user(),
 371                         'acl_data' => construct_acl_data($a, $a->user), // For non-Javascript ACL selector
 372                 );
 373                 $o .= status_editor($a,$x,0,true);
 374         }
 375
 376         $sql_extra = item_permissions_sql($a->profile['uid'],$remote_contact,$groups);
 377
 378         if ($update) {
 379                 $r = dba::p("SELECT `id` FROM `item` WHERE
 380                         `item`.`parent` = (SELECT `parent` FROM `item` WHERE `id` = ?)
 381                         $sql_extra AND `unseen`",
 382                         $item_id
 383                 );
 384
 385                 if (dba::num_rows($r) == 0) {
 386                         return '';
 387                 }
 388         }
 389
 390         $r = dba::p(item_query()."AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `id` = ?)
 391                 $sql_extra
 392                 ORDER BY `parent` DESC, `gravity` ASC, `id` ASC",
 393                 $item_id
 394         );
 395
 396         if (!DBM::is_result($r) && local_user()) {
 397                 // Check if this is another person's link to a post that we have
 398                 $r = dba::fetch_first("SELECT `item`.uri FROM `item`
 399                         WHERE (`item`.`id` = ? OR `item`.`uri` = ?)
 400                         LIMIT 1",
 401                         $item_id,
 402                         $item_id
 403                 );
 404                 if (DBM::is_result($r)) {
 405                         $item_uri = $r['uri'];
 406
 407                         $r = dba::p(item_query()." AND `item`.`uid` = ?
 408                                 AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `uri` = ? AND uid = ?)
 409                                 ORDER BY `parent` DESC, `gravity` ASC, `id` ASC",
 410                                 local_user(),
 411                                 $item_uri,
 412                                 local_user()
 413                         );
 414                 }
 415         }
 416
 417         if (DBM::is_result($r)) {
 418                 $s = dba::inArray($r);
 419
 420                 if ((local_user()) && (local_user() == $a->profile['uid'])) {
 421                         $unseen = dba::select('item', array('id'), array('parent' => $s[0]['parent'], 'unseen' => true), array('limit' => 1));
 422                         if (DBM::is_result($unseen)) {
 423                                 dba::update('item', array('unseen' => false), array('parent' => $s[0]['parent'], 'unseen' => true));
 424                         }
 425                 }
 426
 427                 $items = conv_sort($s, "`commented`");
 428
 429                 if (!$update) {
 430                         $o .= "<script> var netargs = '?f=&nick=" . $nick . "&item_id=" . $item_id . "'; </script>";
 431                 }
 432                 $o .= conversation($a, $items, 'display', $update_uid);
 433
 434                 // Preparing the meta header
 435                 require_once('include/bbcode.php');
 436                 require_once("include/html2plain.php");
 437                 $description = trim(html2plain(bbcode($s[0]["body"], false, false), 0, true));
 438                 $title = trim(html2plain(bbcode($s[0]["title"], false, false), 0, true));
 439                 $author_name = $s[0]["author-name"];
 440
 441                 $image = $a->remove_baseurl($s[0]["author-thumb"]);
 442
 443                 if ($title == "") {
 444                         $title = $author_name;
 445                 }
 446
 447                 // Limit the description to 160 characters
 448                 if (strlen($description) > 160) {
 449                         $description = substr($description, 0, 157) . '...';
 450                 }
 451
 452                 $description = htmlspecialchars($description, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 453                 $title = htmlspecialchars($title, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 454                 $author_name = htmlspecialchars($author_name, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 455
 456                 //<meta name="keywords" content="">
 457                 $a->page['htmlhead'] .= '<meta name="author" content="'.$author_name.'" />'."\n";
 458                 $a->page['htmlhead'] .= '<meta name="title" content="'.$title.'" />'."\n";
 459                 $a->page['htmlhead'] .= '<meta name="fulltitle" content="'.$title.'" />'."\n";
 460                 $a->page['htmlhead'] .= '<meta name="description" content="'.$description.'" />'."\n";
 461
 462                 // Schema.org microdata
 463                 $a->page['htmlhead'] .= '<meta itemprop="name" content="'.$title.'" />'."\n";
 464                 $a->page['htmlhead'] .= '<meta itemprop="description" content="'.$description.'" />'."\n";
 465                 $a->page['htmlhead'] .= '<meta itemprop="image" content="'.$image.'" />'."\n";
 466                 $a->page['htmlhead'] .= '<meta itemprop="author" content="'.$author_name.'" />'."\n";
 467
 468                 // Twitter cards
 469                 $a->page['htmlhead'] .= '<meta name="twitter:card" content="summary" />'."\n";
 470                 $a->page['htmlhead'] .= '<meta name="twitter:title" content="'.$title.'" />'."\n";
 471                 $a->page['htmlhead'] .= '<meta name="twitter:description" content="'.$description.'" />'."\n";
 472                 $a->page['htmlhead'] .= '<meta name="twitter:image" content="'.System::baseUrl().'/'.$image.'" />'."\n";
 473                 $a->page['htmlhead'] .= '<meta name="twitter:url" content="'.$s[0]["plink"].'" />'."\n";
 474
 475                 // Dublin Core
 476                 $a->page['htmlhead'] .= '<meta name="DC.title" content="'.$title.'" />'."\n";
 477                 $a->page['htmlhead'] .= '<meta name="DC.description" content="'.$description.'" />'."\n";
 478
 479                 // Open Graph
 480                 $a->page['htmlhead'] .= '<meta property="og:type" content="website" />'."\n";
 481                 $a->page['htmlhead'] .= '<meta property="og:title" content="'.$title.'" />'."\n";
 482                 $a->page['htmlhead'] .= '<meta property="og:image" content="'.System::baseUrl().'/'.$image.'" />'."\n";
 483                 $a->page['htmlhead'] .= '<meta property="og:url" content="'.$s[0]["plink"].'" />'."\n";
 484                 $a->page['htmlhead'] .= '<meta property="og:description" content="'.$description.'" />'."\n";
 485                 $a->page['htmlhead'] .= '<meta name="og:article:author" content="'.$author_name.'" />'."\n";
 486                 // article:tag
 487
 488                 return $o;
 489         }
 490         $r = dba::fetch_first("SELECT `id`,`deleted` FROM `item` WHERE `id` = ? OR `uri` = ? LIMIT 1",
 491                 $item_id,
 492                 $item_id
 493         );
 494         if (DBM::is_result($r)) {
 495                 if ($r['deleted']) {
 496                         notice(t('Item has been removed.') . EOL);
 497                 } else {
 498                         notice(t('Permission denied.') . EOL);
 499                 }
 500         } else {
 501                 notice(t('Item not found.') . EOL);
 502         }
 503
 504         return $o;
 505 }
 506
 507 function displayShowFeed($item_id, $conversation) {
 508         $xml = DFRN::itemFeed($item_id, $conversation);
 509         if ($xml == '') {
 510                 http_status_exit(500);
 511         }
 512         header("Content-type: application/atom+xml");
 513         echo $xml;
 514         killme();
 515 }