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