mod/display.php

   1 <?php
   2
   3 use Friendica\App;
   4
   5 require_once('include/dfrn.php');
   6
   7 function display_init(App $a) {
   8
   9         if ((get_config('system','block_public')) && (! local_user()) && (! remote_user())) {
  10                 return;
  11         }
  12
  13         $nick = (($a->argc > 1) ? $a->argv[1] : '');
  14         $profiledata = array();
  15
  16         if ($a->argc == 3) {
  17                 if (substr($a->argv[2], -5) == '.atom') {
  18                         $item_id = substr($a->argv[2], 0, -5);
  19                         $xml = dfrn::itemFeed($item_id);
  20                         if ($xml == '') {
  21                                 http_status_exit(500);
  22                         }
  23                         header("Content-type: application/atom+xml");
  24                         echo $xml;
  25                         killme();
  26                 }
  27         }
  28
  29         // If there is only one parameter, then check if this parameter could be a guid
  30         if ($a->argc == 2) {
  31                 $nick = "";
  32                 $itemuid = 0;
  33
  34                 // Does the local user have this item?
  35                 if (local_user()) {
  36                         $r = dba::fetch_first("SELECT `id`, `parent`, `author-name`, `author-link`, `author-avatar`, `network`, `body`, `uid`, `owner-link` FROM `item`
  37                                 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
  38                                         AND `guid` = ? AND `uid` = ? LIMIT 1", $a->argv[1], local_user());
  39                         if (dbm::is_result($r)) {
  40                                 $nick = $a->user["nickname"];
  41                                 $itemuid = local_user();
  42                         }
  43                 }
  44
  45                 // Or is it anywhere on the server?
  46                 if ($nick == "") {
  47                         $r = dba::fetch_first("SELECT `user`.`nickname`, `item`.`id`, `item`.`parent`, `item`.`author-name`,
  48                                 `item`.`author-link`, `item`.`author-avatar`, `item`.`network`, `item`.`uid`, `item`.`owner-link`, `item`.`body`
  49                                 FROM `item` STRAIGHT_JOIN `user` ON `user`.`uid` = `item`.`uid`
  50                                 WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
  51                                         AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
  52                                         AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
  53                                         AND NOT `item`.`private` AND NOT `user`.`hidewall`
  54                                         AND `item`.`guid` = ? LIMIT 1", $a->argv[1]);
  55                         if (dbm::is_result($r)) {
  56                                 $nick = $r["nickname"];
  57                                 $itemuid = $r["uid"];
  58                         }
  59                 }
  60
  61                 // Is it an item with uid=0?
  62                 if ($nick == "") {
  63                         $r = dba::fetch_first("SELECT `item`.`id`, `item`.`parent`, `item`.`author-name`, `item`.`author-link`,
  64                                 `item`.`author-avatar`, `item`.`network`, `item`.`uid`, `item`.`owner-link`, `item`.`body`
  65                                 FROM `item` WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
  66                                         AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
  67                                         AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
  68                                         AND NOT `item`.`private` AND `item`.`uid` = 0
  69                                         AND `item`.`guid` = ? LIMIT 1", $a->argv[1]);
  70                 }
  71                 if (dbm::is_result($r)) {
  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` = %d", $r["parent"]);
  76                         }
  77                         if (($itemuid != local_user()) && local_user()) {
  78                                 // Do we know this contact but we haven't got this item?
  79                                 // Copy the wohle thread to our local storage so that we can interact.
  80                                 // We really should change this need for the future since it scales very bad.
  81                                 $contactid = get_contact($r['owner-link'], local_user());
  82                                 if ($contactid) {
  83                                         $items = dba::p("SELECT * FROM `item` WHERE `parent` = ? ORDER BY `id`", $r["id"]);
  84                                         while ($item = self::fetch($items)) {
  85                                                 $itemcontactid = get_contact($item['owner-link'], local_user());
  86                                                 if (!$itemcontactid) {
  87                                                         $itemcontactid = $contactid;
  88                                                 }
  89                                                 unset($item['id']);
  90                                                 $item['uid'] = local_user();
  91                                                 $item['origin'] = 0;
  92                                                 $item['contact-id'] = $itemcontactid;
  93                                                 $local_copy = item_store($item, false, false, true);
  94                                                 logger("Stored local copy for post ".$item['guid']." under id ".$local_copy, LOGGER_DEBUG);
  95                                         }
  96                                         dba::close($items);
  97                                 }
  98                         }
  99
 100                         $profiledata = display_fetchauthor($a, $r);
 101
 102                         if (strstr(normalise_link($profiledata["url"]), normalise_link(App::get_baseurl()))) {
 103                                 $nickname = str_replace(normalise_link(App::get_baseurl())."/profile/", "", normalise_link($profiledata["url"]));
 104
 105                                 if (($nickname != $a->user["nickname"])) {
 106                                         $r = dba::fetch_first("SELECT `profile`.`uid` AS `profile_uid`, `profile`.* , `contact`.`avatar-date` AS picdate, `user`.* FROM `profile`
 107                                                 INNER JOIN `contact` on `contact`.`uid` = `profile`.`uid` INNER JOIN `user` ON `profile`.`uid` = `user`.`uid`
 108                                                 WHERE `user`.`nickname` = ? AND `profile`.`is-default` AND `contact`.`self` LIMIT 1",
 109                                                 $nickname
 110                                         );
 111                                         if (dbm::is_result($r)) {
 112                                                 $profiledata = $r;
 113                                         }
 114                                         $profiledata["network"] = NETWORK_DFRN;
 115                                 } else {
 116                                         $profiledata = array();
 117                                 }
 118                         }
 119                 } else {
 120                         $a->error = 404;
 121                         notice(t('Item not found.') . EOL);
 122                         return;
 123                 }
 124         }
 125
 126         profile_load($a, $nick, 0, $profiledata);
 127 }
 128
 129 function display_fetchauthor($a, $item) {
 130
 131         require_once("include/Contact.php");
 132
 133         $profiledata = array();
 134         $profiledata["uid"] = -1;
 135         $profiledata["nickname"] = $item["author-name"];
 136         $profiledata["name"] = $item["author-name"];
 137         $profiledata["picdate"] = "";
 138         $profiledata["photo"] = $item["author-avatar"];
 139         $profiledata["url"] = $item["author-link"];
 140         $profiledata["network"] = $item["network"];
 141
 142         // Check for a repeated message
 143         $skip = false;
 144         $body = trim($item["body"]);
 145
 146         // Skip if it isn't a pure repeated messages
 147         // Does it start with a share?
 148         if (!$skip && strpos($body, "[share") > 0) {
 149                 $skip = true;
 150         }
 151         // Does it end with a share?
 152         if (!$skip && (strlen($body) > (strrpos($body, "[/share]") + 8))) {
 153                 $skip = true;
 154         }
 155         if (!$skip) {
 156                 $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
 157                 // Skip if there is no shared message in there
 158                 if ($body == $attributes) {
 159                         $skip = true;
 160                 }
 161         }
 162
 163         if (!$skip) {
 164                 $author = "";
 165                 preg_match("/author='(.*?)'/ism", $attributes, $matches);
 166                 if ($matches[1] != "") {
 167                         $profiledata["name"] = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 168                 }
 169                 preg_match('/author="(.*?)"/ism', $attributes, $matches);
 170                 if ($matches[1] != "") {
 171                         $profiledata["name"] = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
 172                 }
 173                 $profile = "";
 174                 preg_match("/profile='(.*?)'/ism", $attributes, $matches);
 175                 if ($matches[1] != "") {
 176                         $profiledata["url"] = $matches[1];
 177                 }
 178                 preg_match('/profile="(.*?)"/ism', $attributes, $matches);
 179                 if ($matches[1] != "") {
 180                         $profiledata["url"] = $matches[1];
 181                 }
 182                 $avatar = "";
 183                 preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
 184                 if ($matches[1] != "") {
 185                         $profiledata["photo"] = $matches[1];
 186                 }
 187                 preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
 188                 if ($matches[1] != "") {
 189                         $profiledata["photo"] = $matches[1];
 190                 }
 191                 $profiledata["nickname"] = $profiledata["name"];
 192                 $profiledata["network"] = GetProfileUsername($profiledata["url"], "", false, true);
 193
 194                 $profiledata["address"] = "";
 195                 $profiledata["about"] = "";
 196         }
 197
 198         $profiledata = get_contact_details_by_url($profiledata["url"], local_user(), $profiledata);
 199
 200         $profiledata["photo"] = App::remove_baseurl($profiledata["photo"]);
 201
 202         if (local_user()) {
 203                 if (in_array($profiledata["network"], array(NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS))) {
 204                         $profiledata["remoteconnect"] = App::get_baseurl()."/follow?url=".urlencode($profiledata["url"]);
 205                 }
 206         } elseif ($profiledata["network"] == NETWORK_DFRN) {
 207                 $connect = str_replace("/profile/", "/dfrn_request/", $profiledata["url"]);
 208                 $profiledata["remoteconnect"] = $connect;
 209         }
 210
 211         return($profiledata);
 212 }
 213
 214 function display_content(App $a, $update = 0) {
 215
 216         if ((get_config('system','block_public')) && (! local_user()) && (! remote_user())) {
 217                 notice(t('Public access denied.') . EOL);
 218                 return;
 219         }
 220
 221         require_once('include/security.php');
 222         require_once('include/conversation.php');
 223         require_once('include/acl_selectors.php');
 224
 225
 226         $o = '';
 227
 228         if ($update) {
 229                 $nick = $_REQUEST['nick'];
 230         } else {
 231                 $nick = (($a->argc > 1) ? $a->argv[1] : '');
 232         }
 233
 234         if ($update) {
 235                 $item_id = $_REQUEST['item_id'];
 236                 $a->profile = array('uid' => intval($update), 'profile_uid' => intval($update));
 237         } else {
 238                 $item_id = (($a->argc > 2) ? $a->argv[2] : 0);
 239
 240                 if ($a->argc == 2) {
 241                         $nick = "";
 242
 243                         if (local_user()) {
 244                                 $r = dba::fetch_first("SELECT `id` FROM `item`
 245                                         WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
 246                                                 AND `guid` = ? AND `uid` = ?", $a->argv[1], local_user());
 247                                 if (dbm::is_result($r)) {
 248                                         $item_id = $r["id"];
 249                                         $nick = $a->user["nickname"];
 250                                 }
 251                         }
 252
 253                         if ($nick == "") {
 254                                 $r = dba::fetch_first("SELECT `user`.`nickname`, `item`.`id` FROM `item` STRAIGHT_JOIN `user` ON `user`.`uid` = `item`.`uid`
 255                                         WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
 256                                                 AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
 257                                                 AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
 258                                                 AND NOT `item`.`private` AND NOT `user`.`hidewall`
 259                                                 AND `item`.`guid` = ?", $a->argv[1]);
 260                                 if (dbm::is_result($r)) {
 261                                         $item_id = $r["id"];
 262                                         $nick = $r["nickname"];
 263                                 }
 264                         }
 265                         if ($nick == "") {
 266                                 $r = dba::fetch_first("SELECT `item`.`id` FROM `item`
 267                                         WHERE `item`.`visible` AND NOT `item`.`deleted` AND NOT `item`.`moderated`
 268                                                 AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
 269                                                 AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
 270                                                 AND NOT `item`.`private` AND `item`.`uid` = 0
 271                                                 AND `item`.`guid` = ?", $a->argv[1]);
 272                                 if (dbm::is_result($r)) {
 273                                         $item_id = $r["id"];
 274                                 }
 275                         }
 276                 }
 277         }
 278
 279         if ($item_id && !is_numeric($item_id)) {
 280                 $r = dba::select('item', array('id'), array('uri' => $item_id, 'uid' => $a->profile['uid']), array('limit' => 1));
 281                 if (dbm::is_result($r)) {
 282                         $item_id = $r["id"];
 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         $items = dba::select('item', array('id'), array('id' => $item_id, 'private' => false, 'wall' => true));
 296         if (dbm::is_result($items)) {
 297                 $alternate = App::get_baseurl().'/display/'.$nick.'/'.$item_id.'.atom';
 298         } else {
 299                 $alternate = '';
 300         }
 301
 302         $a->page['htmlhead'] .= replace_macros(get_markup_template('display-head.tpl'),
 303                                 array('$alternate' => $alternate));
 304
 305         $groups = array();
 306
 307         $contact = null;
 308         $remote_contact = false;
 309
 310         $contact_id = 0;
 311
 312         if (is_array($_SESSION['remote'])) {
 313                 foreach ($_SESSION['remote'] as $v) {
 314                         if ($v['uid'] == $a->profile['uid']) {
 315                                 $contact_id = $v['cid'];
 316                                 break;
 317                         }
 318                 }
 319         }
 320
 321         if ($contact_id) {
 322                 $groups = init_groups_visitor($contact_id);
 323                 $r = dba::fetch_first("SELECT * FROM `contact` WHERE `id` = ? AND `uid` = ? LIMIT 1",
 324                         $contact_id,
 325                         $a->profile['uid']
 326                 );
 327                 if (dbm::is_result($r)) {
 328                         $contact = $r;
 329                         $remote_contact = true;
 330                 }
 331         }
 332
 333         if (!$remote_contact) {
 334                 if (local_user()) {
 335                         $contact_id = $_SESSION['cid'];
 336                         $contact = $a->contact;
 337                 }
 338         }
 339
 340         $r = dba::fetch_first("SELECT * FROM `contact` WHERE `uid` = ? AND `self` LIMIT 1", $a->profile['uid']);
 341         if (dbm::is_result($r)) {
 342                 $a->page_contact = $r;
 343         }
 344         $is_owner = ((local_user()) && (local_user() == $a->profile['profile_uid']) ? true : false);
 345
 346         if ($a->profile['hidewall'] && (! $is_owner) && (! $remote_contact)) {
 347                 notice(t('Access to this profile has been restricted.') . EOL);
 348                 return;
 349         }
 350
 351         // We need the editor here to be able to reshare an item.
 352
 353         if ($is_owner) {
 354                 $x = array(
 355                         'is_owner' => true,
 356                         'allow_location' => $a->user['allow_location'],
 357                         'default_location' => $a->user['default-location'],
 358                         'nickname' => $a->user['nickname'],
 359                         'lockstate' => ( (is_array($a->user)) && ((strlen($a->user['allow_cid'])) || (strlen($a->user['allow_gid'])) || (strlen($a->user['deny_cid'])) || (strlen($a->user['deny_gid']))) ? 'lock' : 'unlock'),
 360                         'acl' => populate_acl($a->user, true),
 361                         'bang' => '',
 362                         'visitor' => 'block',
 363                         'profile_uid' => local_user(),
 364                         'acl_data' => construct_acl_data($a, $a->user), // For non-Javascript ACL selector
 365                 );
 366                 $o .= status_editor($a,$x,0,true);
 367         }
 368
 369         $sql_extra = item_permissions_sql($a->profile['uid'],$remote_contact,$groups);
 370
 371         if ($update) {
 372                 $r = dba::exists("SELECT `id` FROM `item` WHERE `item`.`uid` = ?
 373                         AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `id` = ?)
 374                         $sql_extra AND `unseen`",
 375                         $a->profile['uid'],
 376                         $item_id
 377                 );
 378
 379                 if (!$r) {
 380                         return '';
 381                 }
 382         }
 383
 384         $r = dba::p(item_query()." AND `item`.`uid` = ?
 385                 AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `id` = ?)
 386                 $sql_extra
 387                 ORDER BY `parent` DESC, `gravity` ASC, `id` ASC",
 388                 $a->profile['uid'],
 389                 $item_id
 390         );
 391
 392         if (!dbm::is_result($r) && local_user()) {
 393                 // Check if this is another person's link to a post that we have
 394                 $r = dba::fetch_first("SELECT `item`.uri FROM `item`
 395                         WHERE (`item`.`id` = ? OR `item`.`uri` = ?)
 396                         LIMIT 1",
 397                         $item_id,
 398                         $item_id
 399                 );
 400                 if (dbm::is_result($r)) {
 401                         $item_uri = $r['uri'];
 402
 403                         $r = dba::p(item_query()." AND `item`.`uid` = ?
 404                                 AND `item`.`parent` = (SELECT `parent` FROM `item` WHERE `uri` = ? AND uid = ?)
 405                                 ORDER BY `parent` DESC, `gravity` ASC, `id` ASC",
 406                                 local_user(),
 407                                 $item_uri,
 408                                 local_user()
 409                         );
 410                 }
 411         }
 412
 413         if (dbm::is_result($r)) {
 414                 $s = dba::inArray($r);
 415
 416                 if ((local_user()) && (local_user() == $a->profile['uid'])) {
 417                         $unseen = dba::select('item', array('id'), array('parent' => $s[0]['parent'], 'unseen' => true), array('limit' => 1));
 418                         if (dbm::is_result($unseen)) {
 419                                 dba::update('item', array('unseen' => false), array('parent' => $s[0]['parent'], 'unseen' => true));
 420                         }
 421                 }
 422
 423                 $items = conv_sort($s, "`commented`");
 424
 425                 if (!$update) {
 426                         $o .= "<script> var netargs = '?f=&nick=" . $nick . "&item_id=" . $item_id . "'; </script>";
 427                 }
 428                 $o .= conversation($a, $items, 'display', $update);
 429
 430                 // Preparing the meta header
 431                 require_once('include/bbcode.php');
 432                 require_once("include/html2plain.php");
 433                 $description = trim(html2plain(bbcode($s[0]["body"], false, false), 0, true));
 434                 $title = trim(html2plain(bbcode($s[0]["title"], false, false), 0, true));
 435                 $author_name = $s[0]["author-name"];
 436
 437                 $image = $a->remove_baseurl($s[0]["author-thumb"]);
 438
 439                 if ($title == "") {
 440                         $title = $author_name;
 441                 }
 442
 443                 // Limit the description to 160 characters
 444                 if (strlen($description) > 160) {
 445                         $description = substr($description, 0, 157) . '...';
 446                 }
 447
 448                 $description = htmlspecialchars($description, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 449                 $title = htmlspecialchars($title, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 450                 $author_name = htmlspecialchars($author_name, ENT_COMPAT, 'UTF-8', true); // allow double encoding here
 451
 452                 //<meta name="keywords" content="">
 453                 $a->page['htmlhead'] .= '<meta name="author" content="'.$author_name.'" />'."\n";
 454                 $a->page['htmlhead'] .= '<meta name="title" content="'.$title.'" />'."\n";
 455                 $a->page['htmlhead'] .= '<meta name="fulltitle" content="'.$title.'" />'."\n";
 456                 $a->page['htmlhead'] .= '<meta name="description" content="'.$description.'" />'."\n";
 457
 458                 // Schema.org microdata
 459                 $a->page['htmlhead'] .= '<meta itemprop="name" content="'.$title.'" />'."\n";
 460                 $a->page['htmlhead'] .= '<meta itemprop="description" content="'.$description.'" />'."\n";
 461                 $a->page['htmlhead'] .= '<meta itemprop="image" content="'.$image.'" />'."\n";
 462                 $a->page['htmlhead'] .= '<meta itemprop="author" content="'.$author_name.'" />'."\n";
 463
 464                 // Twitter cards
 465                 $a->page['htmlhead'] .= '<meta name="twitter:card" content="summary" />'."\n";
 466                 $a->page['htmlhead'] .= '<meta name="twitter:title" content="'.$title.'" />'."\n";
 467                 $a->page['htmlhead'] .= '<meta name="twitter:description" content="'.$description.'" />'."\n";
 468                 $a->page['htmlhead'] .= '<meta name="twitter:image" content="'.$image.'" />'."\n";
 469                 $a->page['htmlhead'] .= '<meta name="twitter:url" content="'.$s[0]["plink"].'" />'."\n";
 470
 471                 // Dublin Core
 472                 $a->page['htmlhead'] .= '<meta name="DC.title" content="'.$title.'" />'."\n";
 473                 $a->page['htmlhead'] .= '<meta name="DC.description" content="'.$description.'" />'."\n";
 474
 475                 // Open Graph
 476                 $a->page['htmlhead'] .= '<meta property="og:type" content="website" />'."\n";
 477                 $a->page['htmlhead'] .= '<meta property="og:title" content="'.$title.'" />'."\n";
 478                 $a->page['htmlhead'] .= '<meta property="og:image" content="'.$image.'" />'."\n";
 479                 $a->page['htmlhead'] .= '<meta property="og:url" content="'.$s[0]["plink"].'" />'."\n";
 480                 $a->page['htmlhead'] .= '<meta property="og:description" content="'.$description.'" />'."\n";
 481                 $a->page['htmlhead'] .= '<meta name="og:article:author" content="'.$author_name.'" />'."\n";
 482                 // article:tag
 483
 484                 return $o;
 485         }
 486
 487         $r = dba::fetch_first("SELECT `id`,`deleted` FROM `item` WHERE `id` = ? OR `uri` = ? LIMIT 1",
 488                 $item_id,
 489                 $item_id
 490         );
 491         if ($r) {
 492                 if ($r['deleted']) {
 493                         notice(t('Item has been removed.') . EOL);
 494                 } else {
 495                         notice(t('Permission denied.') . EOL);
 496                 }
 497         } else {
 498                 notice(t('Item not found.') . EOL);
 499         }
 500
 501         return $o;
 502 }
 503