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