mod/display.php

   1 <?php
   2
   3 use Friendica\App;
   4 use Friendica\Core\System;
   5
   6 require_once('include/dfrn.php');
   7
   8 function display_init(App $a) {
   9
  10         if ((get_config('system','block_public')) && (! local_user()) && (! remote_user())) {
  11                 return;
  12         }
  13
  14         $nick = (($a->argc > 1) ? $a->argv[1] : '');
  15         $profiledata = array();
  16
  17         if ($a->argc == 3) {
  18                 if (substr($a->argv[2], -5) == '.atom') {
  19                         $item_id = substr($a->argv[2], 0, -5);
  20                         displayShowFeed($item_id);
  21                 }
  22         }
  23
  24         // If there is only one parameter, then check if this parameter could be a guid
  25         if ($a->argc == 2) {
  26                 $nick = "";
  27                 $itemuid = 0;
  28                 $r = false;
  29
  30                 // Does the local user have this item?
  31                 if (local_user()) {
  32                         $r = dba::fetch_first("SELECT `id`, `parent`, `author-name`, `author-link`,
  33                                                 `author-avatar`, `network`, `body`, `uid`, `owner-link`
  34                                 FROM `item` WHERE `visible` AND NOT `deleted` AND NOT `moderated`
  35                                         AND `guid` = ? AND `uid` = ? LIMIT 1", $a->argv[1], local_user());
  36                         if (dbm::is_result($r)) {
  37                                 $nick = $a->user["nickname"];
  38                                 $itemuid = local_user();
  39                         }
  40                 }
  41
  42                 // Is it an item with uid=0?
  43                 if (!dbm::is_result($r)) {
  44                         $r = dba::fetch_first("SELECT `id`, `parent`, `author-name`, `author-link`,
  45                                                 `author-avatar`, `network`, `body`, `uid`, `owner-link`
  46                                 FROM `item` WHERE `visible` AND NOT `deleted` AND NOT `moderated`
  47                                         AND `allow_cid` = ''  AND `allow_gid` = ''
  48                                         AND `deny_cid`  = '' AND `deny_gid`  = ''
  49                                         AND NOT `private` AND `uid` = 0
  50                                         AND `guid` = ? LIMIT 1", $a->argv[1]);
  51                 }
  52
  53                 // Or is it anywhere on the server?
  54                 if (!dbm::is_result($r)) {
  55                         $r = dba::fetch_first("SELECT `item`.`id`, `item`.`parent`, `item`.`author-name`, `item`.`author-link`,
  56                                 `item`.`author-avatar`, `item`.`network`, `item`.`body`, `item`.`uid`, `item`.`owner-link`
  57                                 FROM `item` STRAIGHT_JOIN `user` ON `user`.`uid` = `item`.`uid`
  58                                 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
  59                                         AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
  60                                         AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
  61                                         AND NOT `item`.`private` AND NOT `user`.`hidewall`
  62                                         AND `item`.`guid` = ? LIMIT 1", $a->argv[1]);
  63                 }
  64
  65                 if (dbm::is_result($r)) {
  66
  67                         if (strstr($_SERVER['HTTP_ACCEPT'], 'application/atom+xml')) {
  68                                 logger('Directly serving XML for id '.$r["id"], LOGGER_DEBUG);
  69                                 displayShowFeed($r["id"]);
  70                         }
  71
  72                         if ($r["id"] != $r["parent"]) {
  73                                 $r = dba::fetch_first("SELECT `id`, `author-name`, `author-link`, `author-avatar`, `network`, `body`, `uid`, `owner-link` FROM `item`
  74                                         WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
  75                                                 AND `id` = ?", $r["parent"]);
  76                         }
  77
  78                         $profiledata = display_fetchauthor($a, $r);
  79
  80                         if (strstr(normalise_link($profiledata["url"]), normalise_link(System::baseUrl()))) {
  81                                 $nickname = str_replace(normalise_link(System::baseUrl())."/profile/", "", normalise_link($profiledata["url"]));
  82
  83                                 if (($nickname != $a->user["nickname"])) {
  84                                         $r = dba::fetch_first("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
  85                                                 INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
  86                                                 WHERE `user`.`nickname` = ? AND `profile`.`is-default` AND `contact`.`self` LIMIT 1",
  87                                                 $nickname
  88                                         );
  89                                         if (dbm::is_result($r)) {
  90                                                 $profiledata = $r;
  91                                         }
  92                                         $profiledata["network"] = NETWORK_DFRN;
  93                                 } else {
  94                                         $profiledata = array();
  95                                 }
  96                         }
  97                 } else {
  98                         $a->error = 404;
  99                         notice(t('Item not found.') . EOL);
 100                         return;
 101                 }
 102         }
 103
 104         profile_load($a, $nick, 0, $profiledata);
 105 }
 106
 107 function display_fetchauthor($a, $item) {
 108
 109         require_once("include/Contact.php");
 110
 111         $profiledata = array();
 112         $profiledata["uid"] = -1;
 113         $profiledata["nickname"] = $item["author-name"];
 114         $profiledata["name"] = $item["author-name"];
 115         $profiledata["picdate"] = "";
 116         $profiledata["photo"] = $item["author-avatar"];
 117         $profiledata["url"] = $item["author-link"];
 118         $profiledata["network"] = $item["network"];
 119
 120         // Check for a repeated message
 121         $skip = false;
 122         $body = trim($item["body"]);
 123
 124         // Skip if it isn't a pure repeated messages
 125         // Does it start with a share?
 126         if (!$skip && strpos($body, "[share") > 0) {
 127                 $skip = true;
 128         }
 129         // Does it end with a share?
 130         if (!$skip && (strlen($body) > (strrpos($body, "[/share]") + 8))) {
 131                 $skip = true;
 132         }
 133         if (!$skip) {
 134                 $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
 135                 // Skip if there is no shared message in there
 136                 if ($body == $attributes) {
 137                         $skip = true;
 138                 }
 139         }
 140
 141         if (!$skip) {
 142                 $author = "";
 143                 preg_match("/author='(.*?)'/ism", $attributes, $matches);
 144                 if ($matches[1] != "") {
 145                         $profiledata["name"] = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 146                 }
 147                 preg_match('/author="(.*?)"/ism', $attributes, $matches);
 148                 if ($matches[1] != "") {
 149                         $profiledata["name"] = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 150                 }
 151                 $profile = "";
 152                 preg_match("/profile='(.*?)'/ism", $attributes, $matches);
 153                 if ($matches[1] != "") {
 154                         $profiledata["url"] = $matches[1];
 155                 }
 156                 preg_match('/profile="(.*?)"/ism', $attributes, $matches);
 157                 if ($matches[1] != "") {
 158                         $profiledata["url"] = $matches[1];
 159                 }
 160                 $avatar = "";
 161                 preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
 162                 if ($matches[1] != "") {
 163                         $profiledata["photo"] = $matches[1];
 164                 }
 165                 preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
 166                 if ($matches[1] != "") {
 167                         $profiledata["photo"] = $matches[1];
 168                 }
 169                 $profiledata["nickname"] = $profiledata["name"];
 170                 $profiledata["network"] = GetProfileUsername($profiledata["url"], "", false, true);
 171
 172                 $profiledata["address"] = "";
 173                 $profiledata["about"] = "";
 174         }
 175
 176         $profiledata = get_contact_details_by_url($profiledata["url"], local_user(), $profiledata);
 177
 178         $profiledata["photo"] = System::removedBaseUrl($profiledata["photo"]);
 179
 180         if (local_user()) {
 181                 if (in_array($profiledata["network"], array(NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS))) {
 182                         $profiledata["remoteconnect"] = System::baseUrl()."/follow?url=".urlencode($profiledata["url"]);
 183                 }
 184         } elseif ($profiledata["network"] == NETWORK_DFRN) {
 185                 $connect = str_replace("/profile/", "/dfrn_request/", $profiledata["url"]);
 186                 $profiledata["remoteconnect"] = $connect;
 187         }
 188
 189         return($profiledata);
 190 }
 191
 192 function display_content(App $a, $update = 0) {
 193
 194         if ((get_config('system','block_public')) && (! local_user()) && (! remote_user())) {
 195                 notice(t('Public access denied.') . EOL);
 196                 return;
 197         }
 198
 199         require_once('include/security.php');
 200         require_once('include/conversation.php');
 201         require_once('include/acl_selectors.php');
 202
 203
 204         $o = '';
 205
 206         if ($update) {
 207                 $nick = $_REQUEST['nick'];
 208         } else {
 209                 $nick = (($a->argc > 1) ? $a->argv[1] : '');
 210         }
 211
 212         if ($update) {
 213                 $item_id = $_REQUEST['item_id'];
 214                 $a->profile = array('uid' => intval($update), 'profile_uid' => intval($update));
 215         } else {
 216                 $item_id = (($a->argc > 2) ? $a->argv[2] : 0);
 217
 218                 if ($a->argc == 2) {
 219                         $nick = "";
 220
 221                         if (local_user()) {
 222                                 $r = dba::fetch_first("SELECT `id` FROM `item`
 223                                         WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
 224                                                 AND `guid` = ? AND `uid` = ?", $a->argv[1], local_user());
 225                                 if (dbm::is_result($r)) {
 226                                         $item_id = $r["id"];
 227                                         $nick = $a->user["nickname"];
 228                                 }
 229                         }
 230
 231                         if ($nick == "") {
 232                                 $r = dba::fetch_first("SELECT `user`.`nickname`, `item`.`id` FROM `item` STRAIGHT_JOIN `user` ON `user`.`uid` = `item`.`uid`
 233                                         WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
 234                                                 AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
 235                                                 AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
 236                                                 AND NOT `item`.`private` AND NOT `user`.`hidewall`
 237                                                 AND `item`.`guid` = ?", $a->argv[1]);
 238                                 if (dbm::is_result($r)) {
 239                                         $item_id = $r["id"];
 240                                         $nick = $r["nickname"];
 241                                 }
 242                         }
 243                         if ($nick == "") {
 244                                 $r = dba::fetch_first("SELECT `item`.`id` FROM `item`
 245                                         WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
 246                                                 AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
 247                                                 AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
 248                                                 AND NOT `item`.`private` AND `item`.`uid` = 0
 249                                                 AND `item`.`guid` = ?", $a->argv[1]);
 250                                 if (dbm::is_result($r)) {
 251                                         $item_id = $r["id"];
 252                                 }
 253                         }
 254                 }
 255         }
 256
 257         if ($item_id && !is_numeric($item_id)) {
 258                 $r = dba::select('item', array('id'), array('uri' => $item_id, 'uid' => $a->profile['uid']), array('limit' => 1));
 259                 if (dbm::is_result($r)) {
 260                         $item_id = $r["id"];
 261                 } else {
 262                         $item_id = false;
 263                 }
 264         }
 265
 266         if (!$item_id) {
 267                 $a->error = 404;
 268                 notice(t('Item not found.').EOL);
 269                 return;
 270         }
 271
 272         // We are displaying an "alternate" link if that post was public. See issue 2864
 273         $is_public = dba::exists('item', array('id' => $item_id, 'private' => false));
 274         if ($is_public) {
 275                 $alternate = System::baseUrl().'/display/'.$nick.'/'.$item_id.'.atom';
 276         } else {
 277                 $alternate = '';
 278         }
 279
 280         $a->page['htmlhead'] .= replace_macros(get_markup_template('display-head.tpl'),
 281                                 array('$alternate' => $alternate));
 282
 283         $groups = array();
 284
 285         $contact = null;
 286         $remote_contact = false;
 287
 288         $contact_id = 0;
 289
 290         if (is_array($_SESSION['remote'])) {
 291                 foreach ($_SESSION['remote'] as $v) {
 292                         if ($v['uid'] == $a->profile['uid']) {
 293                                 $contact_id = $v['cid'];
 294                                 break;
 295                         }
 296                 }
 297         }
 298
 299         if ($contact_id) {
 300                 $groups = init_groups_visitor($contact_id);
 301                 $r = dba::fetch_first("SELECT * FROM `contact` WHERE `id` = ? AND `uid` = ? LIMIT 1",
 302                         $contact_id,
 303                         $a->profile['uid']
 304                 );
 305                 if (dbm::is_result($r)) {
 306                         $contact = $r;
 307                         $remote_contact = true;
 308                 }
 309         }
 310
 311         if (!$remote_contact) {
 312                 if (local_user()) {
 313                         $contact_id = $_SESSION['cid'];
 314                         $contact = $a->contact;
 315                 }
 316         }
 317
 318         $r = dba::fetch_first("SELECT * FROM `contact` WHERE `uid` = ? AND `self` LIMIT 1", $a->profile['uid']);
 319         if (dbm::is_result($r)) {
 320                 $a->page_contact = $r;
 321         }
 322         $is_owner = ((local_user()) && (local_user() == $a->profile['profile_uid']) ? true : false);
 323
 324         if ($a->profile['hidewall'] && (! $is_owner) && (! $remote_contact)) {
 325                 notice(t('Access to this profile has been restricted.') . EOL);
 326                 return;
 327         }
 328
 329         // We need the editor here to be able to reshare an item.
 330
 331         if ($is_owner) {
 332                 $x = array(
 333                         'is_owner' => true,
 334                         'allow_location' => $a->user['allow_location'],
 335                         'default_location' => $a->user['default-location'],
 336                         'nickname' => $a->user['nickname'],
 337                         'lockstate' => ( (is_array($a->user)) && ((strlen($a->user['allow_cid'])) || (strlen($a->user['allow_gid'])) || (strlen($a->user['deny_cid'])) || (strlen($a->user['deny_gid']))) ? 'lock' : 'unlock'),
 338                         'acl' => populate_acl($a->user, true),
 339                         'bang' => '',
 340                         'visitor' => 'block',
 341                         'profile_uid' => local_user(),
 342                         'acl_data' => construct_acl_data($a, $a->user), // For non-Javascript ACL selector
 343                 );
 344                 $o .= status_editor($a,$x,0,true);
 345         }
 346
 347         $sql_extra = item_permissions_sql($a->profile['uid'],$remote_contact,$groups);
 348
 349         if ($update) {
 350                 $r = dba::p("SELECT `id` FROM `item` WHERE `item`.`uid` = ?
 351                         AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `id` = ?)
 352                         $sql_extra AND `unseen`",
 353                         $a->profile['uid'],
 354                         $item_id
 355                 );
 356
 357                 if (dba::num_rows($r) == 0) {
 358                         return '';
 359                 }
 360         }
 361
 362         $r = dba::p(item_query()."AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `id` = ?)
 363                 $sql_extra
 364                 ORDER BY `parent` DESC, `gravity` ASC, `id` ASC",
 365                 $item_id
 366         );
 367
 368         if (!dbm::is_result($r) && local_user()) {
 369                 // Check if this is another person's link to a post that we have
 370                 $r = dba::fetch_first("SELECT `item`.uri FROM `item`
 371                         WHERE (`item`.`id` = ? OR `item`.`uri` = ?)
 372                         LIMIT 1",
 373                         $item_id,
 374                         $item_id
 375                 );
 376                 if (dbm::is_result($r)) {
 377                         $item_uri = $r['uri'];
 378
 379                         $r = dba::p(item_query()." AND `item`.`uid` = ?
 380                                 AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `uri` = ? AND uid = ?)
 381                                 ORDER BY `parent` DESC, `gravity` ASC, `id` ASC",
 382                                 local_user(),
 383                                 $item_uri,
 384                                 local_user()
 385                         );
 386                 }
 387         }
 388
 389         if (dbm::is_result($r)) {
 390                 $s = dba::inArray($r);
 391
 392                 if ((local_user()) && (local_user() == $a->profile['uid'])) {
 393                         $unseen = dba::select('item', array('id'), array('parent' => $s[0]['parent'], 'unseen' => true), array('limit' => 1));
 394                         if (dbm::is_result($unseen)) {
 395                                 dba::update('item', array('unseen' => false), array('parent' => $s[0]['parent'], 'unseen' => true));
 396                         }
 397                 }
 398
 399                 $items = conv_sort($s, "`commented`");
 400
 401                 if (!$update) {
 402                         $o .= "<script> var netargs = '?f=&nick=" . $nick . "&item_id=" . $item_id . "'; </script>";
 403                 }
 404                 $o .= conversation($a, $items, 'display', $update);
 405
 406                 // Preparing the meta header
 407                 require_once('include/bbcode.php');
 408                 require_once("include/html2plain.php");
 409                 $description = trim(html2plain(bbcode($s[0]["body"], false, false), 0, true));
 410                 $title = trim(html2plain(bbcode($s[0]["title"], false, false), 0, true));
 411                 $author_name = $s[0]["author-name"];
 412
 413                 $image = $a->remove_baseurl($s[0]["author-thumb"]);
 414
 415                 if ($title == "") {
 416                         $title = $author_name;
 417                 }
 418
 419                 // Limit the description to 160 characters
 420                 if (strlen($description) > 160) {
 421                         $description = substr($description, 0, 157) . '...';
 422                 }
 423
 424                 $description = htmlspecialchars($description, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 425                 $title = htmlspecialchars($title, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 426                 $author_name = htmlspecialchars($author_name, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 427
 428                 //<meta name="keywords" content="">
 429                 $a->page['htmlhead'] .= '<meta name="author" content="'.$author_name.'" />'."\n";
 430                 $a->page['htmlhead'] .= '<meta name="title" content="'.$title.'" />'."\n";
 431                 $a->page['htmlhead'] .= '<meta name="fulltitle" content="'.$title.'" />'."\n";
 432                 $a->page['htmlhead'] .= '<meta name="description" content="'.$description.'" />'."\n";
 433
 434                 // Schema.org microdata
 435                 $a->page['htmlhead'] .= '<meta itemprop="name" content="'.$title.'" />'."\n";
 436                 $a->page['htmlhead'] .= '<meta itemprop="description" content="'.$description.'" />'."\n";
 437                 $a->page['htmlhead'] .= '<meta itemprop="image" content="'.$image.'" />'."\n";
 438                 $a->page['htmlhead'] .= '<meta itemprop="author" content="'.$author_name.'" />'."\n";
 439
 440                 // Twitter cards
 441                 $a->page['htmlhead'] .= '<meta name="twitter:card" content="summary" />'."\n";
 442                 $a->page['htmlhead'] .= '<meta name="twitter:title" content="'.$title.'" />'."\n";
 443                 $a->page['htmlhead'] .= '<meta name="twitter:description" content="'.$description.'" />'."\n";
 444                 $a->page['htmlhead'] .= '<meta name="twitter:image" content="'.$image.'" />'."\n";
 445                 $a->page['htmlhead'] .= '<meta name="twitter:url" content="'.$s[0]["plink"].'" />'."\n";
 446
 447                 // Dublin Core
 448                 $a->page['htmlhead'] .= '<meta name="DC.title" content="'.$title.'" />'."\n";
 449                 $a->page['htmlhead'] .= '<meta name="DC.description" content="'.$description.'" />'."\n";
 450
 451                 // Open Graph
 452                 $a->page['htmlhead'] .= '<meta property="og:type" content="website" />'."\n";
 453                 $a->page['htmlhead'] .= '<meta property="og:title" content="'.$title.'" />'."\n";
 454                 $a->page['htmlhead'] .= '<meta property="og:image" content="'.$image.'" />'."\n";
 455                 $a->page['htmlhead'] .= '<meta property="og:url" content="'.$s[0]["plink"].'" />'."\n";
 456                 $a->page['htmlhead'] .= '<meta property="og:description" content="'.$description.'" />'."\n";
 457                 $a->page['htmlhead'] .= '<meta name="og:article:author" content="'.$author_name.'" />'."\n";
 458                 // article:tag
 459
 460                 return $o;
 461         }
 462         $r = dba::fetch_first("SELECT `id`,`deleted` FROM `item` WHERE `id` = ? OR `uri` = ? LIMIT 1",
 463                 $item_id,
 464                 $item_id
 465         );
 466         if (dbm::is_result($r)) {
 467                 if ($r['deleted']) {
 468                         notice(t('Item has been removed.') . EOL);
 469                 } else {
 470                         notice(t('Permission denied.') . EOL);
 471                 }
 472         } else {
 473                 notice(t('Item not found.') . EOL);
 474         }
 475
 476         return $o;
 477 }
 478
 479 function displayShowFeed($item_id) {
 480         $xml = dfrn::itemFeed($item_id);
 481         if ($xml == '') {
 482                 http_status_exit(500);
 483         }
 484         header("Content-type: application/atom+xml");
 485         echo $xml;
 486         killme();
 487 }