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