Esempio n. 1
0
 function post()
 {
     // This will change. Figure out who the observer is and whether or not
     // they have permission to post here. Else ignore the post.
     if (!local_channel() && !remote_channel() && !x($_REQUEST, 'commenter')) {
         return;
     }
     require_once 'include/security.php';
     $uid = local_channel();
     $channel = null;
     $observer = null;
     /**
      * Is this a reply to something?
      */
     $parent = x($_REQUEST, 'parent') ? intval($_REQUEST['parent']) : 0;
     $parent_mid = x($_REQUEST, 'parent_mid') ? trim($_REQUEST['parent_mid']) : '';
     $remote_xchan = x($_REQUEST, 'remote_xchan') ? trim($_REQUEST['remote_xchan']) : false;
     $r = q("select * from xchan where xchan_hash = '%s' limit 1", dbesc($remote_xchan));
     if ($r) {
         $remote_observer = $r[0];
     } else {
         $remote_xchan = $remote_observer = false;
     }
     $profile_uid = x($_REQUEST, 'profile_uid') ? intval($_REQUEST['profile_uid']) : 0;
     require_once 'include/channel.php';
     $sys = get_sys_channel();
     if ($sys && $profile_uid && $sys['channel_id'] == $profile_uid && is_site_admin()) {
         $uid = intval($sys['channel_id']);
         $channel = $sys;
         $observer = $sys;
     }
     if (x($_REQUEST, 'dropitems')) {
         require_once 'include/items.php';
         $arr_drop = explode(',', $_REQUEST['dropitems']);
         drop_items($arr_drop);
         $json = array('success' => 1);
         echo json_encode($json);
         killme();
     }
     call_hooks('post_local_start', $_REQUEST);
     //	 logger('postvars ' . print_r($_REQUEST,true), LOGGER_DATA);
     $api_source = x($_REQUEST, 'api_source') && $_REQUEST['api_source'] ? true : false;
     $consensus = intval($_REQUEST['consensus']);
     $nocomment = intval($_REQUEST['nocomment']);
     // 'origin' (if non-zero) indicates that this network is where the message originated,
     // for the purpose of relaying comments to other conversation members.
     // If using the API from a device (leaf node) you must set origin to 1 (default) or leave unset.
     // If the API is used from another network with its own distribution
     // and deliveries, you may wish to set origin to 0 or false and allow the other
     // network to relay comments.
     // If you are unsure, it is prudent (and important) to leave it unset.
     $origin = $api_source && array_key_exists('origin', $_REQUEST) ? intval($_REQUEST['origin']) : 1;
     // To represent message-ids on other networks - this will create an iconfig record
     $namespace = $api_source && array_key_exists('namespace', $_REQUEST) ? strip_tags($_REQUEST['namespace']) : '';
     $remote_id = $api_source && array_key_exists('remote_id', $_REQUEST) ? strip_tags($_REQUEST['remote_id']) : '';
     $owner_hash = null;
     $message_id = x($_REQUEST, 'message_id') && $api_source ? strip_tags($_REQUEST['message_id']) : '';
     $created = x($_REQUEST, 'created') ? datetime_convert(date_default_timezone_get(), 'UTC', $_REQUEST['created']) : datetime_convert();
     $post_id = x($_REQUEST, 'post_id') ? intval($_REQUEST['post_id']) : 0;
     $app = x($_REQUEST, 'source') ? strip_tags($_REQUEST['source']) : '';
     $return_path = x($_REQUEST, 'return') ? $_REQUEST['return'] : '';
     $preview = x($_REQUEST, 'preview') ? intval($_REQUEST['preview']) : 0;
     $categories = x($_REQUEST, 'category') ? escape_tags($_REQUEST['category']) : '';
     $webpage = x($_REQUEST, 'webpage') ? intval($_REQUEST['webpage']) : 0;
     $pagetitle = x($_REQUEST, 'pagetitle') ? escape_tags(urlencode($_REQUEST['pagetitle'])) : '';
     $layout_mid = x($_REQUEST, 'layout_mid') ? escape_tags($_REQUEST['layout_mid']) : '';
     $plink = x($_REQUEST, 'permalink') ? escape_tags($_REQUEST['permalink']) : '';
     $obj_type = x($_REQUEST, 'obj_type') ? escape_tags($_REQUEST['obj_type']) : ACTIVITY_OBJ_NOTE;
     // allow API to bulk load a bunch of imported items with sending out a bunch of posts.
     $nopush = x($_REQUEST, 'nopush') ? intval($_REQUEST['nopush']) : 0;
     /*
      * Check service class limits
      */
     if ($uid && !x($_REQUEST, 'parent') && !x($_REQUEST, 'post_id')) {
         $ret = $this->item_check_service_class($uid, $_REQUEST['webpage'] == ITEM_TYPE_WEBPAGE ? true : false);
         if (!$ret['success']) {
             notice(t($ret['message']) . EOL);
             if (x($_REQUEST, 'return')) {
                 goaway(z_root() . "/" . $return_path);
             }
             killme();
         }
     }
     if ($pagetitle) {
         require_once 'library/urlify/URLify.php';
         $pagetitle = strtolower(\URLify::transliterate($pagetitle));
     }
     $item_flags = $item_restrict = 0;
     $route = '';
     $parent_item = null;
     $parent_contact = null;
     $thr_parent = '';
     $parid = 0;
     $r = false;
     if ($parent || $parent_mid) {
         if (!x($_REQUEST, 'type')) {
             $_REQUEST['type'] = 'net-comment';
         }
         if ($obj_type == ACTIVITY_OBJ_POST) {
             $obj_type = ACTIVITY_OBJ_COMMENT;
         }
         if ($parent) {
             $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1", intval($parent));
         } elseif ($parent_mid && $uid) {
             // This is coming from an API source, and we are logged in
             $r = q("SELECT * FROM `item` WHERE `mid` = '%s' AND `uid` = %d LIMIT 1", dbesc($parent_mid), intval($uid));
         }
         // if this isn't the real parent of the conversation, find it
         if ($r !== false && count($r)) {
             $parid = $r[0]['parent'];
             $parent_mid = $r[0]['mid'];
             if ($r[0]['id'] != $r[0]['parent']) {
                 $r = q("SELECT * FROM `item` WHERE `id` = `parent` AND `parent` = %d LIMIT 1", intval($parid));
             }
         }
         if ($r === false || !count($r)) {
             notice(t('Unable to locate original post.') . EOL);
             if (x($_REQUEST, 'return')) {
                 goaway(z_root() . "/" . $return_path);
             }
             killme();
         }
         // can_comment_on_post() needs info from the following xchan_query
         // This may be from the discover tab which means we need to correct the effective uid
         xchan_query($r, true, $r[0]['uid'] == local_channel() ? 0 : local_channel());
         $parent_item = $r[0];
         $parent = $r[0]['id'];
         // multi-level threading - preserve the info but re-parent to our single level threading
         $thr_parent = $parent_mid;
         $route = $parent_item['route'];
     }
     if (!$observer) {
         $observer = \App::get_observer();
     }
     if ($parent) {
         logger('mod_item: item_post parent=' . $parent);
         $can_comment = false;
         if (array_key_exists('owner', $parent_item) && intval($parent_item['owner']['abook_self'])) {
             $can_comment = perm_is_allowed($profile_uid, $observer['xchan_hash'], 'post_comments');
         } else {
             $can_comment = can_comment_on_post($observer['xchan_hash'], $parent_item);
         }
         if (!$can_comment) {
             notice(t('Permission denied.') . EOL);
             if (x($_REQUEST, 'return')) {
                 goaway(z_root() . "/" . $return_path);
             }
             killme();
         }
     } else {
         if (!perm_is_allowed($profile_uid, $observer['xchan_hash'], $webpage ? 'write_pages' : 'post_wall')) {
             notice(t('Permission denied.') . EOL);
             if (x($_REQUEST, 'return')) {
                 goaway(z_root() . "/" . $return_path);
             }
             killme();
         }
     }
     // is this an edited post?
     $orig_post = null;
     if ($namespace && $remote_id) {
         // It wasn't an internally generated post - see if we've got an item matching this remote service id
         $i = q("select iid from iconfig where cat = 'system' and k = '%s' and v = '%s' limit 1", dbesc($namespace), dbesc($remote_id));
         if ($i) {
             $post_id = $i[0]['iid'];
         }
     }
     $iconfig = null;
     if ($post_id) {
         $i = q("SELECT * FROM `item` WHERE `uid` = %d AND `id` = %d LIMIT 1", intval($profile_uid), intval($post_id));
         if (!count($i)) {
             killme();
         }
         $orig_post = $i[0];
         $iconfig = q("select * from iconfig where iid = %d", intval($post_id));
     }
     if (!$channel) {
         if ($uid && $uid == $profile_uid) {
             $channel = \App::get_channel();
         } else {
             // posting as yourself but not necessarily to a channel you control
             $r = q("select * from channel left join account on channel_account_id = account_id where channel_id = %d LIMIT 1", intval($profile_uid));
             if ($r) {
                 $channel = $r[0];
             }
         }
     }
     if (!$channel) {
         logger("mod_item: no channel.");
         if (x($_REQUEST, 'return')) {
             goaway(z_root() . "/" . $return_path);
         }
         killme();
     }
     $owner_xchan = null;
     $r = q("select * from xchan where xchan_hash = '%s' limit 1", dbesc($channel['channel_hash']));
     if ($r && count($r)) {
         $owner_xchan = $r[0];
     } else {
         logger("mod_item: no owner.");
         if (x($_REQUEST, 'return')) {
             goaway(z_root() . "/" . $return_path);
         }
         killme();
     }
     $walltowall = false;
     $walltowall_comment = false;
     if ($remote_xchan) {
         $observer = $remote_observer;
     }
     if ($observer) {
         logger('mod_item: post accepted from ' . $observer['xchan_name'] . ' for ' . $owner_xchan['xchan_name'], LOGGER_DEBUG);
         // wall-to-wall detection.
         // For top-level posts, if the author and owner are different it's a wall-to-wall
         // For comments, We need to additionally look at the parent and see if it's a wall post that originated locally.
         if ($observer['xchan_name'] != $owner_xchan['xchan_name']) {
             if ($parent_item && ($parent_item['item_wall'] && $parent_item['item_origin'])) {
                 $walltowall_comment = true;
                 $walltowall = true;
             }
             if (!$parent) {
                 $walltowall = true;
             }
         }
     }
     $acl = new \Zotlabs\Access\AccessList($channel);
     $view_policy = \Zotlabs\Access\PermissionLimits::Get($channel['channel_id'], 'view_stream');
     $comment_policy = \Zotlabs\Access\PermissionLimits::Get($channel['channel_id'], 'post_comments');
     $public_policy = x($_REQUEST, 'public_policy') ? escape_tags($_REQUEST['public_policy']) : map_scope($view_policy, true);
     if ($webpage) {
         $public_policy = '';
     }
     if ($public_policy) {
         $private = 1;
     }
     if ($orig_post) {
         $private = 0;
         // webpages are allowed to change ACLs after the fact. Normal conversation items aren't.
         if ($webpage) {
             $acl->set_from_array($_REQUEST);
         } else {
             $acl->set($orig_post);
             $public_policy = $orig_post['public_policy'];
             $private = $orig_post['item_private'];
         }
         if ($private || $public_policy || $acl->is_private()) {
             $private = 1;
         }
         $location = $orig_post['location'];
         $coord = $orig_post['coord'];
         $verb = $orig_post['verb'];
         $app = $orig_post['app'];
         $title = escape_tags(trim($_REQUEST['title']));
         $body = trim($_REQUEST['body']);
         $item_flags = $orig_post['item_flags'];
         $item_origin = $orig_post['item_origin'];
         $item_unseen = $orig_post['item_unseen'];
         $item_starred = $orig_post['item_starred'];
         $item_uplink = $orig_post['item_uplink'];
         $item_consensus = $orig_post['item_consensus'];
         $item_wall = $orig_post['item_wall'];
         $item_thread_top = $orig_post['item_thread_top'];
         $item_notshown = $orig_post['item_notshown'];
         $item_nsfw = $orig_post['item_nsfw'];
         $item_relay = $orig_post['item_relay'];
         $item_mentionsme = $orig_post['item_mentionsme'];
         $item_nocomment = $orig_post['item_nocomment'];
         $item_obscured = $orig_post['item_obscured'];
         $item_verified = $orig_post['item_verified'];
         $item_retained = $orig_post['item_retained'];
         $item_rss = $orig_post['item_rss'];
         $item_deleted = $orig_post['item_deleted'];
         $item_type = $orig_post['item_type'];
         $item_hidden = $orig_post['item_hidden'];
         $item_unpublished = $orig_post['item_unpublished'];
         $item_delayed = $orig_post['item_delayed'];
         $item_pending_remove = $orig_post['item_pending_remove'];
         $item_blocked = $orig_post['item_blocked'];
         $postopts = $orig_post['postopts'];
         $created = $orig_post['created'];
         $mid = $orig_post['mid'];
         $parent_mid = $orig_post['parent_mid'];
         $plink = $orig_post['plink'];
     } else {
         if (!$walltowall) {
             if (array_key_exists('contact_allow', $_REQUEST) || array_key_exists('group_allow', $_REQUEST) || array_key_exists('contact_deny', $_REQUEST) || array_key_exists('group_deny', $_REQUEST)) {
                 $acl->set_from_array($_REQUEST);
             } elseif (!$api_source) {
                 // if no ACL has been defined and we aren't using the API, the form
                 // didn't send us any parameters. This means there's no ACL or it has
                 // been reset to the default audience.
                 // If $api_source is set and there are no ACL parameters, we default
                 // to the channel permissions which were set in the ACL contructor.
                 $acl->set(array('allow_cid' => '', 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => ''));
             }
         }
         $location = notags(trim($_REQUEST['location']));
         $coord = notags(trim($_REQUEST['coord']));
         $verb = notags(trim($_REQUEST['verb']));
         $title = escape_tags(trim($_REQUEST['title']));
         $body = trim($_REQUEST['body']);
         $body .= trim($_REQUEST['attachment']);
         $postopts = '';
         $private = intval($acl->is_private() || $public_policy);
         // If this is a comment, set the permissions from the parent.
         if ($parent_item) {
             $private = 0;
             $acl->set($parent_item);
             $private = intval($acl->is_private() || $parent_item['item_private']);
             $public_policy = $parent_item['public_policy'];
             $owner_hash = $parent_item['owner_xchan'];
         }
         if (!strlen($body)) {
             if ($preview) {
                 killme();
             }
             info(t('Empty post discarded.') . EOL);
             if (x($_REQUEST, 'return')) {
                 goaway(z_root() . "/" . $return_path);
             }
             killme();
         }
     }
     $expires = NULL_DATE;
     if (feature_enabled($profile_uid, 'content_expire')) {
         if (x($_REQUEST, 'expire')) {
             $expires = datetime_convert(date_default_timezone_get(), 'UTC', $_REQUEST['expire']);
             if ($expires <= datetime_convert()) {
                 $expires = NULL_DATE;
             }
         }
     }
     $mimetype = notags(trim($_REQUEST['mimetype']));
     if (!$mimetype) {
         $mimetype = 'text/bbcode';
     }
     if ($preview) {
         $body = z_input_filter($profile_uid, $body, $mimetype);
     }
     // Verify ability to use html or php!!!
     $execflag = false;
     if ($mimetype !== 'text/bbcode') {
         $z = q("select account_id, account_roles, channel_pageflags from account left join channel on channel_account_id = account_id where channel_id = %d limit 1", intval($profile_uid));
         if ($z && ($z[0]['account_roles'] & ACCOUNT_ROLE_ALLOWCODE || $z[0]['channel_pageflags'] & PAGE_ALLOWCODE)) {
             if ($uid && get_account_id() == $z[0]['account_id']) {
                 $execflag = true;
             } else {
                 notice(t('Executable content type not permitted to this channel.') . EOL);
                 if (x($_REQUEST, 'return')) {
                     goaway(z_root() . "/" . $return_path);
                 }
                 killme();
             }
         }
     }
     $gacl = $acl->get();
     $str_contact_allow = $gacl['allow_cid'];
     $str_group_allow = $gacl['allow_gid'];
     $str_contact_deny = $gacl['deny_cid'];
     $str_group_deny = $gacl['deny_gid'];
     if ($mimetype === 'text/bbcode') {
         require_once 'include/text.php';
         // Markdown doesn't work correctly. Do not re-enable unless you're willing to fix it and support it.
         // Sample that will probably give you grief - you must preserve the linebreaks
         // and provide the correct markdown interpretation and you cannot allow unfiltered HTML
         // Markdown
         // ========
         //
         // **bold** abcde
         // fghijkl
         // *italic*
         // <img src="javascript:alert('hacked');" />
         //		if($uid && $uid == $profile_uid && feature_enabled($uid,'markdown')) {
         //			require_once('include/bb2diaspora.php');
         //			$body = escape_tags(trim($body));
         //			$body = str_replace("\n",'<br />', $body);
         //			$body = preg_replace_callback('/\[share(.*?)\]/ism','\share_shield',$body);
         //			$body = diaspora2bb($body,true);
         //			$body = preg_replace_callback('/\[share(.*?)\]/ism','\share_unshield',$body);
         //		}
         // BBCODE alert: the following functions assume bbcode input
         // and will require alternatives for alternative content-types (text/html, text/markdown, text/plain, etc.)
         // we may need virtual or template classes to implement the possible alternatives
         // Work around doubled linefeeds in Tinymce 3.5b2
         // First figure out if it's a status post that would've been
         // created using tinymce. Otherwise leave it alone.
         $plaintext = true;
         //		$plaintext = ((feature_enabled($profile_uid,'richtext')) ? false : true);
         //		if((! $parent) && (! $api_source) && (! $plaintext)) {
         //			$body = fix_mce_lf($body);
         //		}
         // If we're sending a private top-level message with a single @-taggable channel as a recipient, @-tag it, if our pconfig is set.
         if (!$parent && get_pconfig($profile_uid, 'system', 'tagifonlyrecip') && substr_count($str_contact_allow, '<') == 1 && $str_group_allow == '' && $str_contact_deny == '' && $str_group_deny == '') {
             $x = q("select abook_id, abconfig.v from abook left join abconfig on abook_xchan = abconfig.xchan and abook_channel = abconfig.chan and cat= 'their_perms' and abconfig.k = 'tag_deliver' and abconfig.v = 1 and abook_xchan = '%s' and abook_channel = %d limit 1", dbesc(str_replace(array('<', '>'), array('', ''), $str_contact_allow)), intval($profile_uid));
             if ($x) {
                 $body .= "\n\n@group+" . $x[0]['abook_id'] . "\n";
             }
         }
         /**
          * fix naked links by passing through a callback to see if this is a hubzilla site
          * (already known to us) which will get a zrl, otherwise link with url, add bookmark tag to both.
          * First protect any url inside certain bbcode tags so we don't double link it.
          */
         $body = preg_replace_callback('/\\[code(.*?)\\[\\/(code)\\]/ism', '\\red_escape_codeblock', $body);
         $body = preg_replace_callback('/\\[url(.*?)\\[\\/(url)\\]/ism', '\\red_escape_codeblock', $body);
         $body = preg_replace_callback('/\\[zrl(.*?)\\[\\/(zrl)\\]/ism', '\\red_escape_codeblock', $body);
         $body = preg_replace_callback("/([^\\]\\='" . '"' . "\\/]|^|\\#\\^)(https?\\:\\/\\/[a-zA-Z0-9\\:\\/\\-\\?\\&\\;\\.\\=\\@\\_\\~\\#\\%\$\\!\\+\\,]+)/ism", 'nakedoembed', $body);
         $body = preg_replace_callback("/([^\\]\\='" . '"' . "\\/]|^|\\#\\^)(https?\\:\\/\\/[a-zA-Z0-9\\:\\/\\-\\?\\&\\;\\.\\=\\@\\_\\~\\#\\%\$\\!\\+\\,]+)/ism", '\\red_zrl_callback', $body);
         $body = preg_replace_callback('/\\[\\$b64zrl(.*?)\\[\\/(zrl)\\]/ism', '\\red_unescape_codeblock', $body);
         $body = preg_replace_callback('/\\[\\$b64url(.*?)\\[\\/(url)\\]/ism', '\\red_unescape_codeblock', $body);
         $body = preg_replace_callback('/\\[\\$b64code(.*?)\\[\\/(code)\\]/ism', '\\red_unescape_codeblock', $body);
         // fix any img tags that should be zmg
         $body = preg_replace_callback('/\\[img(.*?)\\](.*?)\\[\\/img\\]/ism', '\\red_zrlify_img_callback', $body);
         $body = bb_translate_video($body);
         /**
          * Fold multi-line [code] sequences
          */
         $body = preg_replace('/\\[\\/code\\]\\s*\\[code\\]/ism', "\n", $body);
         $body = scale_external_images($body, false);
         // Look for tags and linkify them
         $results = linkify_tags($a, $body, $uid ? $uid : $profile_uid);
         if ($results) {
             // Set permissions based on tag replacements
             set_linkified_perms($results, $str_contact_allow, $str_group_allow, $profile_uid, $parent_item, $private);
             $post_tags = array();
             foreach ($results as $result) {
                 $success = $result['success'];
                 if ($success['replaced']) {
                     $post_tags[] = array('uid' => $profile_uid, 'ttype' => $success['termtype'], 'otype' => TERM_OBJ_POST, 'term' => $success['term'], 'url' => $success['url']);
                 }
             }
         }
         /**
          *
          * When a photo was uploaded into the message using the (profile wall) ajax 
          * uploader, The permissions are initially set to disallow anybody but the
          * owner from seeing it. This is because the permissions may not yet have been
          * set for the post. If it's private, the photo permissions should be set
          * appropriately. But we didn't know the final permissions on the post until
          * now. So now we'll look for links of uploaded photos and attachments that are in the
          * post and set them to the same permissions as the post itself.
          *
          * If the post was end-to-end encrypted we can't find images and attachments in the body,
          * use our media_str input instead which only contains these elements - but only do this
          * when encrypted content exists because the photo/attachment may have been removed from 
          * the post and we should keep it private. If it's encrypted we have no way of knowing
          * so we'll set the permissions regardless and realise that the media may not be 
          * referenced in the post. 
          *
          * What is preventing us from being able to upload photos into comments is dealing with
          * the photo and attachment permissions, since we don't always know who was in the 
          * distribution for the top level post.
          * 
          * We might be able to provide this functionality with a lot of fiddling:
          * - if the top level post is public (make the photo public)
          * - if the top level post was written by us or a wall post that belongs to us (match the top level post)
          * - if the top level post has privacy mentions, add those to the permissions.
          * - otherwise disallow the photo *or* make the photo public. This is the part that gets messy. 
          */
         if (!$preview) {
             fix_attached_photo_permissions($profile_uid, $owner_xchan['xchan_hash'], strpos($body, '[/crypt]') ? $_POST['media_str'] : $body, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny);
             fix_attached_file_permissions($channel, $observer['xchan_hash'], strpos($body, '[/crypt]') ? $_POST['media_str'] : $body, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny);
         }
         $attachments = '';
         $match = false;
         if (preg_match_all('/(\\[attachment\\](.*?)\\[\\/attachment\\])/', $body, $match)) {
             $attachments = array();
             $i = 0;
             foreach ($match[2] as $mtch) {
                 $attach_link = '';
                 $hash = substr($mtch, 0, strpos($mtch, ','));
                 $rev = intval(substr($mtch, strpos($mtch, ',')));
                 $r = attach_by_hash_nodata($hash, $rev);
                 if ($r['success']) {
                     $attachments[] = array('href' => z_root() . '/attach/' . $r['data']['hash'], 'length' => $r['data']['filesize'], 'type' => $r['data']['filetype'], 'title' => urlencode($r['data']['filename']), 'revision' => $r['data']['revision']);
                 }
                 $ext = substr($r['data']['filename'], strrpos($r['data']['filename'], '.'));
                 if (strpos($r['data']['filetype'], 'audio/') !== false) {
                     $attach_link = '[audio]' . z_root() . '/attach/' . $r['data']['hash'] . '/' . $r['data']['revision'] . ($ext ? $ext : '') . '[/audio]';
                 } elseif (strpos($r['data']['filetype'], 'video/') !== false) {
                     $attach_link = '[video]' . z_root() . '/attach/' . $r['data']['hash'] . '/' . $r['data']['revision'] . ($ext ? $ext : '') . '[/video]';
                 }
                 $body = str_replace($match[1][$i], $attach_link, $body);
                 $i++;
             }
         }
     }
     // BBCODE end alert
     if (strlen($categories)) {
         $cats = explode(',', $categories);
         foreach ($cats as $cat) {
             $post_tags[] = array('uid' => $profile_uid, 'ttype' => TERM_CATEGORY, 'otype' => TERM_OBJ_POST, 'term' => trim($cat), 'url' => $owner_xchan['xchan_url'] . '?f=&cat=' . urlencode(trim($cat)));
         }
     }
     if ($orig_post) {
         // preserve original tags
         $t = q("select * from term where oid = %d and otype = %d and uid = %d and ttype in ( %d, %d, %d )", intval($orig_post['id']), intval(TERM_OBJ_POST), intval($profile_uid), intval(TERM_UNKNOWN), intval(TERM_FILE), intval(TERM_COMMUNITYTAG));
         if ($t) {
             foreach ($t as $t1) {
                 $post_tags[] = array('uid' => $profile_uid, 'ttype' => $t1['type'], 'otype' => TERM_OBJ_POST, 'term' => $t1['term'], 'url' => $t1['url']);
             }
         }
     }
     $item_unseen = local_channel() != $profile_uid ? 1 : 0;
     $item_wall = $post_type === 'wall' || $post_type === 'wall-comment' ? 1 : 0;
     $item_origin = $origin ? 1 : 0;
     $item_consensus = $consensus ? 1 : 0;
     $item_nocomment = $nocomment ? 1 : 0;
     // determine if this is a wall post
     if ($parent) {
         $item_wall = $parent_item['item_wall'];
     } else {
         if (!$webpage) {
             $item_wall = 1;
         }
     }
     if ($moderated) {
         $item_blocked = ITEM_MODERATED;
     }
     if (!strlen($verb)) {
         $verb = ACTIVITY_POST;
     }
     $notify_type = $parent ? 'comment-new' : 'wall-new';
     if (!$mid) {
         $mid = $message_id ? $message_id : item_message_id();
     }
     if (!$parent_mid) {
         $parent_mid = $mid;
     }
     if ($parent_item) {
         $parent_mid = $parent_item['mid'];
     }
     // Fallback so that we alway have a thr_parent
     if (!$thr_parent) {
         $thr_parent = $mid;
     }
     $datarray = array();
     $item_thread_top = !$parent ? 1 : 0;
     if (!$plink && $item_thread_top) {
         $plink = z_root() . '/channel/' . $channel['channel_address'] . '/?f=&mid=' . $mid;
     }
     $datarray['aid'] = $channel['channel_account_id'];
     $datarray['uid'] = $profile_uid;
     $datarray['owner_xchan'] = $owner_hash ? $owner_hash : $owner_xchan['xchan_hash'];
     $datarray['author_xchan'] = $observer['xchan_hash'];
     $datarray['created'] = $created;
     $datarray['edited'] = $orig_post ? datetime_convert() : $created;
     $datarray['expires'] = $expires;
     $datarray['commented'] = $orig_post ? datetime_convert() : $created;
     $datarray['received'] = $orig_post ? datetime_convert() : $created;
     $datarray['changed'] = $orig_post ? datetime_convert() : $created;
     $datarray['mid'] = $mid;
     $datarray['parent_mid'] = $parent_mid;
     $datarray['mimetype'] = $mimetype;
     $datarray['title'] = $title;
     $datarray['body'] = $body;
     $datarray['app'] = $app;
     $datarray['location'] = $location;
     $datarray['coord'] = $coord;
     $datarray['verb'] = $verb;
     $datarray['obj_type'] = $obj_type;
     $datarray['allow_cid'] = $str_contact_allow;
     $datarray['allow_gid'] = $str_group_allow;
     $datarray['deny_cid'] = $str_contact_deny;
     $datarray['deny_gid'] = $str_group_deny;
     $datarray['attach'] = $attachments;
     $datarray['thr_parent'] = $thr_parent;
     $datarray['postopts'] = $postopts;
     $datarray['item_unseen'] = intval($item_unseen);
     $datarray['item_wall'] = intval($item_wall);
     $datarray['item_origin'] = intval($item_origin);
     $datarray['item_type'] = $webpage;
     $datarray['item_private'] = intval($private);
     $datarray['item_thread_top'] = intval($item_thread_top);
     $datarray['item_unseen'] = intval($item_unseen);
     $datarray['item_starred'] = intval($item_starred);
     $datarray['item_uplink'] = intval($item_uplink);
     $datarray['item_consensus'] = intval($item_consensus);
     $datarray['item_notshown'] = intval($item_notshown);
     $datarray['item_nsfw'] = intval($item_nsfw);
     $datarray['item_relay'] = intval($item_relay);
     $datarray['item_mentionsme'] = intval($item_mentionsme);
     $datarray['item_nocomment'] = intval($item_nocomment);
     $datarray['item_obscured'] = intval($item_obscured);
     $datarray['item_verified'] = intval($item_verified);
     $datarray['item_retained'] = intval($item_retained);
     $datarray['item_rss'] = intval($item_rss);
     $datarray['item_deleted'] = intval($item_deleted);
     $datarray['item_hidden'] = intval($item_hidden);
     $datarray['item_unpublished'] = intval($item_unpublished);
     $datarray['item_delayed'] = intval($item_delayed);
     $datarray['item_pending_remove'] = intval($item_pending_remove);
     $datarray['item_blocked'] = intval($item_blocked);
     $datarray['layout_mid'] = $layout_mid;
     $datarray['public_policy'] = $public_policy;
     $datarray['comment_policy'] = map_scope($comment_policy);
     $datarray['term'] = $post_tags;
     $datarray['plink'] = $plink;
     $datarray['route'] = $route;
     if ($iconfig) {
         $datarray['iconfig'] = $iconfig;
     }
     // preview mode - prepare the body for display and send it via json
     if ($preview) {
         require_once 'include/conversation.php';
         $datarray['owner'] = $owner_xchan;
         $datarray['author'] = $observer;
         $datarray['attach'] = json_encode($datarray['attach']);
         $o = conversation($a, array($datarray), 'search', false, 'preview');
         //		logger('preview: ' . $o, LOGGER_DEBUG);
         echo json_encode(array('preview' => $o));
         killme();
     }
     if ($orig_post) {
         $datarray['edit'] = true;
     }
     // suppress duplicates, *unless* you're editing an existing post. This could get picked up
     // as a duplicate if you're editing it very soon after posting it initially and you edited
     // some attribute besides the content, such as title or categories.
     if (feature_enabled($profile_uid, 'suppress_duplicates') && !$orig_post) {
         $z = q("select created from item where uid = %d and created > %s - INTERVAL %s and body = '%s' limit 1", intval($profile_uid), db_utcnow(), db_quoteinterval('2 MINUTE'), dbesc($body));
         if ($z) {
             $datarray['cancel'] = 1;
             notice(t('Duplicate post suppressed.') . EOL);
             logger('Duplicate post. Faking plugin cancel.');
         }
     }
     call_hooks('post_local', $datarray);
     if (x($datarray, 'cancel')) {
         logger('mod_item: post cancelled by plugin or duplicate suppressed.');
         if ($return_path) {
             goaway(z_root() . "/" . $return_path);
         }
         $json = array('cancel' => 1);
         $json['reload'] = z_root() . '/' . $_REQUEST['jsreload'];
         echo json_encode($json);
         killme();
     }
     if (mb_strlen($datarray['title']) > 255) {
         $datarray['title'] = mb_substr($datarray['title'], 0, 255);
     }
     if (array_key_exists('item_private', $datarray) && $datarray['item_private']) {
         $datarray['body'] = trim(z_input_filter($datarray['uid'], $datarray['body'], $datarray['mimetype']));
         if ($uid) {
             if ($channel['channel_hash'] === $datarray['author_xchan']) {
                 $datarray['sig'] = base64url_encode(rsa_sign($datarray['body'], $channel['channel_prvkey']));
                 $datarray['item_verified'] = 1;
             }
         }
     }
     if ($webpage) {
         Zlib\IConfig::Set($datarray, 'system', webpage_to_namespace($webpage), $pagetitle ? $pagetitle : substr($datarray['mid'], 0, 16), true);
     } elseif ($namespace) {
         Zlib\IConfig::Set($datarray, 'system', $namespace, $remote_id ? $remote_id : substr($datarray['mid'], 0, 16), true);
     }
     if ($orig_post) {
         $datarray['id'] = $post_id;
         $x = item_store_update($datarray, $execflag);
         if (!$parent) {
             $r = q("select * from item where id = %d", intval($post_id));
             if ($r) {
                 xchan_query($r);
                 $sync_item = fetch_post_tags($r);
                 build_sync_packet($profile_uid, array('item' => array(encode_item($sync_item[0], true))));
             }
         }
         if (!$nopush) {
             \Zotlabs\Daemon\Master::Summon(array('Notifier', 'edit_post', $post_id));
         }
         if (x($_REQUEST, 'return') && strlen($return_path)) {
             logger('return: ' . $return_path);
             goaway(z_root() . "/" . $return_path);
         }
         killme();
     } else {
         $post_id = 0;
     }
     $post = item_store($datarray, $execflag);
     $post_id = $post['item_id'];
     $datarray = $post['item'];
     if ($post_id) {
         logger('mod_item: saved item ' . $post_id);
         if ($parent) {
             // only send comment notification if this is a wall-to-wall comment,
             // otherwise it will happen during delivery
             if ($datarray['owner_xchan'] != $datarray['author_xchan'] && intval($parent_item['item_wall'])) {
                 Zlib\Enotify::submit(array('type' => NOTIFY_COMMENT, 'from_xchan' => $datarray['author_xchan'], 'to_xchan' => $datarray['owner_xchan'], 'item' => $datarray, 'link' => z_root() . '/display/' . $datarray['mid'], 'verb' => ACTIVITY_POST, 'otype' => 'item', 'parent' => $parent, 'parent_mid' => $parent_item['mid']));
             }
         } else {
             $parent = $post_id;
             if ($datarray['owner_xchan'] != $datarray['author_xchan'] && $datarray['item_type'] == ITEM_TYPE_POST) {
                 Zlib\Enotify::submit(array('type' => NOTIFY_WALL, 'from_xchan' => $datarray['author_xchan'], 'to_xchan' => $datarray['owner_xchan'], 'item' => $datarray, 'link' => z_root() . '/display/' . $datarray['mid'], 'verb' => ACTIVITY_POST, 'otype' => 'item'));
             }
             if ($uid && $uid == $profile_uid && is_item_normal($datarray)) {
                 q("update channel set channel_lastpost = '%s' where channel_id = %d", dbesc(datetime_convert()), intval($uid));
             }
         }
         // photo comments turn the corresponding item visible to the profile wall
         // This way we don't see every picture in your new photo album posted to your wall at once.
         // They will show up as people comment on them.
         if (intval($parent_item['item_hidden'])) {
             $r = q("UPDATE item SET item_hidden = 0 WHERE id = %d", intval($parent_item['id']));
         }
     } else {
         logger('mod_item: unable to retrieve post that was just stored.');
         notice(t('System error. Post not saved.') . EOL);
         goaway(z_root() . "/" . $return_path);
         // NOTREACHED
     }
     if ($parent && $parent != $post_id) {
         // Store the comment signature information in case we need to relay to Diaspora
         //$ditem = $datarray;
         //$ditem['author'] = $observer;
         //store_diaspora_comment_sig($ditem,$channel,$parent_item, $post_id, (($walltowall_comment) ? 1 : 0));
     } else {
         $r = q("select * from item where id = %d", intval($post_id));
         if ($r) {
             xchan_query($r);
             $sync_item = fetch_post_tags($r);
             build_sync_packet($profile_uid, array('item' => array(encode_item($sync_item[0], true))));
         }
     }
     $datarray['id'] = $post_id;
     $datarray['llink'] = z_root() . '/display/' . $channel['channel_address'] . '/' . $post_id;
     call_hooks('post_local_end', $datarray);
     if (!$nopush) {
         \Zotlabs\Daemon\Master::Summon(array('Notifier', $notify_type, $post_id));
     }
     logger('post_complete');
     // figure out how to return, depending on from whence we came
     if ($api_source) {
         return $post;
     }
     if ($return_path) {
         goaway(z_root() . "/" . $return_path);
     }
     $json = array('success' => 1);
     if (x($_REQUEST, 'jsreload') && strlen($_REQUEST['jsreload'])) {
         $json['reload'] = z_root() . '/' . $_REQUEST['jsreload'];
     }
     logger('post_json: ' . print_r($json, true), LOGGER_DEBUG);
     echo json_encode($json);
     killme();
     // NOTREACHED
 }
Esempio n. 2
0
function item_post(&$a)
{
    // This will change. Figure out who the observer is and whether or not
    // they have permission to post here. Else ignore the post.
    if (!local_channel() && !remote_channel() && !x($_REQUEST, 'commenter')) {
        return;
    }
    require_once 'include/security.php';
    $uid = local_channel();
    $channel = null;
    $observer = null;
    /**
     * Is this a reply to something?
     */
    $parent = x($_REQUEST, 'parent') ? intval($_REQUEST['parent']) : 0;
    $parent_mid = x($_REQUEST, 'parent_mid') ? trim($_REQUEST['parent_mid']) : '';
    $remote_xchan = x($_REQUEST, 'remote_xchan') ? trim($_REQUEST['remote_xchan']) : false;
    $r = q("select * from xchan where xchan_hash = '%s' limit 1", dbesc($remote_xchan));
    if ($r) {
        $remote_observer = $r[0];
    } else {
        $remote_xchan = $remote_observer = false;
    }
    $profile_uid = x($_REQUEST, 'profile_uid') ? intval($_REQUEST['profile_uid']) : 0;
    require_once 'include/identity.php';
    $sys = get_sys_channel();
    if ($sys && $profile_uid && $sys['channel_id'] == $profile_uid && is_site_admin()) {
        $uid = intval($sys['channel_id']);
        $channel = $sys;
        $observer = $sys;
    }
    if (x($_REQUEST, 'dropitems')) {
        require_once 'include/items.php';
        $arr_drop = explode(',', $_REQUEST['dropitems']);
        drop_items($arr_drop);
        $json = array('success' => 1);
        echo json_encode($json);
        killme();
    }
    call_hooks('post_local_start', $_REQUEST);
    //	 logger('postvars ' . print_r($_REQUEST,true), LOGGER_DATA);
    $api_source = x($_REQUEST, 'api_source') && $_REQUEST['api_source'] ? true : false;
    $consensus = intval($_REQUEST['consensus']);
    // 'origin' (if non-zero) indicates that this network is where the message originated,
    // for the purpose of relaying comments to other conversation members.
    // If using the API from a device (leaf node) you must set origin to 1 (default) or leave unset.
    // If the API is used from another network with its own distribution
    // and deliveries, you may wish to set origin to 0 or false and allow the other
    // network to relay comments.
    // If you are unsure, it is prudent (and important) to leave it unset.
    $origin = $api_source && array_key_exists('origin', $_REQUEST) ? intval($_REQUEST['origin']) : 1;
    // To represent message-ids on other networks - this will create an item_id record
    $namespace = $api_source && array_key_exists('namespace', $_REQUEST) ? strip_tags($_REQUEST['namespace']) : '';
    $remote_id = $api_source && array_key_exists('remote_id', $_REQUEST) ? strip_tags($_REQUEST['remote_id']) : '';
    $owner_hash = null;
    $message_id = x($_REQUEST, 'message_id') && $api_source ? strip_tags($_REQUEST['message_id']) : '';
    $created = x($_REQUEST, 'created') ? datetime_convert('UTC', 'UTC', $_REQUEST['created']) : datetime_convert();
    $post_id = x($_REQUEST, 'post_id') ? intval($_REQUEST['post_id']) : 0;
    $app = x($_REQUEST, 'source') ? strip_tags($_REQUEST['source']) : '';
    $return_path = x($_REQUEST, 'return') ? $_REQUEST['return'] : '';
    $preview = x($_REQUEST, 'preview') ? intval($_REQUEST['preview']) : 0;
    $categories = x($_REQUEST, 'category') ? escape_tags($_REQUEST['category']) : '';
    $webpage = x($_REQUEST, 'webpage') ? intval($_REQUEST['webpage']) : 0;
    $pagetitle = x($_REQUEST, 'pagetitle') ? escape_tags(urlencode($_REQUEST['pagetitle'])) : '';
    $layout_mid = x($_REQUEST, 'layout_mid') ? escape_tags($_REQUEST['layout_mid']) : '';
    $plink = x($_REQUEST, 'permalink') ? escape_tags($_REQUEST['permalink']) : '';
    $obj_type = x($_REQUEST, 'obj_type') ? escape_tags($_REQUEST['obj_type']) : ACTIVITY_OBJ_NOTE;
    // allow API to bulk load a bunch of imported items with sending out a bunch of posts.
    $nopush = x($_REQUEST, 'nopush') ? intval($_REQUEST['nopush']) : 0;
    /*
     * Check service class limits
     */
    if ($uid && !x($_REQUEST, 'parent') && !x($_REQUEST, 'post_id')) {
        $ret = item_check_service_class($uid, $_REQUEST['webpage'] == ITEM_WEBPAGE ? true : false);
        if (!$ret['success']) {
            notice(t($ret['message']) . EOL);
            if (x($_REQUEST, 'return')) {
                goaway($a->get_baseurl() . "/" . $return_path);
            }
            killme();
        }
    }
    if ($pagetitle) {
        require_once 'library/urlify/URLify.php';
        $pagetitle = strtolower(URLify::transliterate($pagetitle));
    }
    $item_flags = $item_restrict = 0;
    $route = '';
    $parent_item = null;
    $parent_contact = null;
    $thr_parent = '';
    $parid = 0;
    $r = false;
    if ($parent || $parent_mid) {
        if (!x($_REQUEST, 'type')) {
            $_REQUEST['type'] = 'net-comment';
        }
        if ($obj_type == ACTIVITY_OBJ_POST) {
            $obj_type = ACTIVITY_OBJ_COMMENT;
        }
        if ($parent) {
            $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1", intval($parent));
        } elseif ($parent_mid && $uid) {
            // This is coming from an API source, and we are logged in
            $r = q("SELECT * FROM `item` WHERE `mid` = '%s' AND `uid` = %d LIMIT 1", dbesc($parent_mid), intval($uid));
        }
        // if this isn't the real parent of the conversation, find it
        if ($r !== false && count($r)) {
            $parid = $r[0]['parent'];
            $parent_mid = $r[0]['mid'];
            if ($r[0]['id'] != $r[0]['parent']) {
                $r = q("SELECT * FROM `item` WHERE `id` = `parent` AND `parent` = %d LIMIT 1", intval($parid));
            }
        }
        if ($r === false || !count($r)) {
            notice(t('Unable to locate original post.') . EOL);
            if (x($_REQUEST, 'return')) {
                goaway($a->get_baseurl() . "/" . $return_path);
            }
            killme();
        }
        // can_comment_on_post() needs info from the following xchan_query
        xchan_query($r);
        $parent_item = $r[0];
        $parent = $r[0]['id'];
        // multi-level threading - preserve the info but re-parent to our single level threading
        $thr_parent = $parent_mid;
        $route = $parent_item['route'];
    }
    if (!$observer) {
        $observer = $a->get_observer();
    }
    if ($parent) {
        logger('mod_item: item_post parent=' . $parent);
        $can_comment = false;
        if (array_key_exists('owner', $parent_item) && $parent_item['owner']['abook_flags'] & ABOOK_FLAG_SELF) {
            $can_comment = perm_is_allowed($profile_uid, $observer['xchan_hash'], 'post_comments');
        } else {
            $can_comment = can_comment_on_post($observer['xchan_hash'], $parent_item);
        }
        if (!$can_comment) {
            notice(t('Permission denied.') . EOL);
            if (x($_REQUEST, 'return')) {
                goaway($a->get_baseurl() . "/" . $return_path);
            }
            killme();
        }
    } else {
        if (!perm_is_allowed($profile_uid, $observer['xchan_hash'], 'post_wall')) {
            notice(t('Permission denied.') . EOL);
            if (x($_REQUEST, 'return')) {
                goaway($a->get_baseurl() . "/" . $return_path);
            }
            killme();
        }
    }
    // is this an edited post?
    $orig_post = null;
    if ($namespace && $remote_id) {
        // It wasn't an internally generated post - see if we've got an item matching this remote service id
        $i = q("select iid from item_id where service = '%s' and sid = '%s' limit 1", dbesc($namespace), dbesc($remote_id));
        if ($i) {
            $post_id = $i[0]['iid'];
        }
    }
    if ($post_id) {
        $i = q("SELECT * FROM `item` WHERE `uid` = %d AND `id` = %d LIMIT 1", intval($profile_uid), intval($post_id));
        if (!count($i)) {
            killme();
        }
        $orig_post = $i[0];
    }
    if (!$channel) {
        if ($uid && $uid == $profile_uid) {
            $channel = $a->get_channel();
        } else {
            // posting as yourself but not necessarily to a channel you control
            $r = q("select * from channel left join account on channel_account_id = account_id where channel_id = %d LIMIT 1", intval($profile_uid));
            if ($r) {
                $channel = $r[0];
            }
        }
    }
    if (!$channel) {
        logger("mod_item: no channel.");
        if (x($_REQUEST, 'return')) {
            goaway($a->get_baseurl() . "/" . $return_path);
        }
        killme();
    }
    $owner_xchan = null;
    $r = q("select * from xchan where xchan_hash = '%s' limit 1", dbesc($channel['channel_hash']));
    if ($r && count($r)) {
        $owner_xchan = $r[0];
    } else {
        logger("mod_item: no owner.");
        if (x($_REQUEST, 'return')) {
            goaway($a->get_baseurl() . "/" . $return_path);
        }
        killme();
    }
    $walltowall = false;
    $walltowall_comment = false;
    if ($remote_xchan) {
        $observer = $remote_observer;
    }
    if ($observer) {
        logger('mod_item: post accepted from ' . $observer['xchan_name'] . ' for ' . $owner_xchan['xchan_name'], LOGGER_DEBUG);
        // wall-to-wall detection.
        // For top-level posts, if the author and owner are different it's a wall-to-wall
        // For comments, We need to additionally look at the parent and see if it's a wall post that originated locally.
        if ($observer['xchan_name'] != $owner_xchan['xchan_name']) {
            if ($parent_item && ($parent_item['item_flags'] & (ITEM_WALL | ITEM_ORIGIN)) == (ITEM_WALL | ITEM_ORIGIN)) {
                $walltowall_comment = true;
                $walltowall = true;
            }
            if (!$parent) {
                $walltowall = true;
            }
        }
    }
    $public_policy = x($_REQUEST, 'public_policy') ? escape_tags($_REQUEST['public_policy']) : map_scope($channel['channel_r_stream'], true);
    if ($webpage) {
        $public_policy = '';
    }
    if ($public_policy) {
        $private = 1;
    }
    if ($orig_post) {
        $private = 0;
        // webpages are allowed to change ACLs after the fact. Normal conversation items aren't.
        if ($webpage) {
            $str_group_allow = perms2str($_REQUEST['group_allow']);
            $str_contact_allow = perms2str($_REQUEST['contact_allow']);
            $str_group_deny = perms2str($_REQUEST['group_deny']);
            $str_contact_deny = perms2str($_REQUEST['contact_deny']);
        } else {
            $str_group_allow = $orig_post['allow_gid'];
            $str_contact_allow = $orig_post['allow_cid'];
            $str_group_deny = $orig_post['deny_gid'];
            $str_contact_deny = $orig_post['deny_cid'];
            $public_policy = $orig_post['public_policy'];
            $private = $orig_post['item_private'];
        }
        if (strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny) || strlen($public_policy) || $private) {
            $private = 1;
        }
        $location = $orig_post['location'];
        $coord = $orig_post['coord'];
        $verb = $orig_post['verb'];
        $app = $orig_post['app'];
        $title = escape_tags(trim($_REQUEST['title']));
        $body = trim($_REQUEST['body']);
        $item_flags = $orig_post['item_flags'];
        // force us to recalculate if we need to obscure this post
        if ($item_flags & ITEM_OBSCURED) {
            $item_flags = $item_flags ^ ITEM_OBSCURED;
        }
        $item_restrict = $orig_post['item_restrict'];
        $postopts = $orig_post['postopts'];
        $created = $orig_post['created'];
        $mid = $orig_post['mid'];
        $parent_mid = $orig_post['parent_mid'];
        $plink = $orig_post['plink'];
    } else {
        // if coming from the API and no privacy settings are set,
        // use the user default permissions - as they won't have
        // been supplied via a form.
        if ($api_source && !array_key_exists('contact_allow', $_REQUEST) && !array_key_exists('group_allow', $_REQUEST) && !array_key_exists('contact_deny', $_REQUEST) && !array_key_exists('group_deny', $_REQUEST)) {
            $str_group_allow = $channel['channel_allow_gid'];
            $str_contact_allow = $channel['channel_allow_cid'];
            $str_group_deny = $channel['channel_deny_gid'];
            $str_contact_deny = $channel['channel_deny_cid'];
        } elseif ($walltowall) {
            // use the channel owner's default permissions
            $str_group_allow = $channel['channel_allow_gid'];
            $str_contact_allow = $channel['channel_allow_cid'];
            $str_group_deny = $channel['channel_deny_gid'];
            $str_contact_deny = $channel['channel_deny_cid'];
        } else {
            // use the posted permissions
            $str_group_allow = perms2str($_REQUEST['group_allow']);
            $str_contact_allow = perms2str($_REQUEST['contact_allow']);
            $str_group_deny = perms2str($_REQUEST['group_deny']);
            $str_contact_deny = perms2str($_REQUEST['contact_deny']);
        }
        $location = notags(trim($_REQUEST['location']));
        $coord = notags(trim($_REQUEST['coord']));
        $verb = notags(trim($_REQUEST['verb']));
        $title = escape_tags(trim($_REQUEST['title']));
        $body = trim($_REQUEST['body']);
        $body .= trim($_REQUEST['attachment']);
        $postopts = '';
        $private = strlen($str_group_allow) || strlen($str_contact_allow) || strlen($str_group_deny) || strlen($str_contact_deny) || strlen($public_policy) ? 1 : 0;
        // If this is a comment, set the permissions from the parent.
        if ($parent_item) {
            $private = 0;
            if ($parent_item['item_private'] || strlen($parent_item['allow_cid']) || strlen($parent_item['allow_gid']) || strlen($parent_item['deny_cid']) || strlen($parent_item['deny_gid']) || strlen($parent_item['public_policy'])) {
                $private = $parent_item['item_private'] ? $parent_item['item_private'] : 1;
            }
            $public_policy = $parent_item['public_policy'];
            $str_contact_allow = $parent_item['allow_cid'];
            $str_group_allow = $parent_item['allow_gid'];
            $str_contact_deny = $parent_item['deny_cid'];
            $str_group_deny = $parent_item['deny_gid'];
            $owner_hash = $parent_item['owner_xchan'];
        }
        if (!strlen($body)) {
            if ($preview) {
                killme();
            }
            info(t('Empty post discarded.') . EOL);
            if (x($_REQUEST, 'return')) {
                goaway($a->get_baseurl() . "/" . $return_path);
            }
            killme();
        }
    }
    $expires = NULL_DATE;
    if (feature_enabled($profile_uid, 'content_expire')) {
        if (x($_REQUEST, 'expire')) {
            $expires = datetime_convert(date_default_timezone_get(), 'UTC', $_REQUEST['expire']);
            if ($expires <= datetime_convert()) {
                $expires = NULL_DATE;
            }
        }
    }
    $mimetype = notags(trim($_REQUEST['mimetype']));
    if (!$mimetype) {
        $mimetype = 'text/bbcode';
    }
    if ($preview) {
        $body = z_input_filter($profile_uid, $body, $mimetype);
    }
    // Verify ability to use html or php!!!
    $execflag = false;
    if ($mimetype === 'application/x-php') {
        $z = q("select account_id, account_roles, channel_pageflags from account left join channel on channel_account_id = account_id where channel_id = %d limit 1", intval($profile_uid));
        if ($z && ($z[0]['account_roles'] & ACCOUNT_ROLE_ALLOWCODE || $z[0]['channel_pageflags'] & PAGE_ALLOWCODE)) {
            if ($uid && get_account_id() == $z[0]['account_id']) {
                $execflag = true;
            } else {
                notice(t('Executable content type not permitted to this channel.') . EOL);
                if (x($_REQUEST, 'return')) {
                    goaway($a->get_baseurl() . "/" . $return_path);
                }
                killme();
            }
        }
    }
    if ($mimetype === 'text/bbcode') {
        require_once 'include/text.php';
        if ($uid && $uid == $profile_uid && feature_enabled($uid, 'markdown')) {
            require_once 'include/bb2diaspora.php';
            $body = escape_tags($body);
            $body = preg_replace_callback('/\\[share(.*?)\\]/ism', 'share_shield', $body);
            $body = diaspora2bb($body, true);
            $body = preg_replace_callback('/\\[share(.*?)\\]/ism', 'share_unshield', $body);
        }
        // BBCODE alert: the following functions assume bbcode input
        // and will require alternatives for alternative content-types (text/html, text/markdown, text/plain, etc.)
        // we may need virtual or template classes to implement the possible alternatives
        // Work around doubled linefeeds in Tinymce 3.5b2
        // First figure out if it's a status post that would've been
        // created using tinymce. Otherwise leave it alone.
        $plaintext = true;
        //		$plaintext = ((feature_enabled($profile_uid,'richtext')) ? false : true);
        //		if((! $parent) && (! $api_source) && (! $plaintext)) {
        //			$body = fix_mce_lf($body);
        //		}
        // If we're sending a private top-level message with a single @-taggable channel as a recipient, @-tag it, if our pconfig is set.
        if (!$parent && get_pconfig($profile_uid, 'system', 'tagifonlyrecip') && substr_count($str_contact_allow, '<') == 1 && $str_group_allow == '' && $str_contact_deny == '' && $str_group_deny == '') {
            $x = q("select abook_id, abook_their_perms from abook where abook_xchan = '%s' and abook_channel = %d limit 1", dbesc(str_replace(array('<', '>'), array('', ''), $str_contact_allow)), intval($profile_uid));
            if ($x && $x[0]['abook_their_perms'] & PERMS_W_TAGWALL) {
                $body .= "\n\n@group+" . $x[0]['abook_id'] . "\n";
            }
        }
        /**
         * fix naked links by passing through a callback to see if this is a red site
         * (already known to us) which will get a zrl, otherwise link with url, add bookmark tag to both.
         * First protect any url inside certain bbcode tags so we don't double link it.
         */
        $body = preg_replace_callback('/\\[code(.*?)\\[\\/(code)\\]/ism', 'red_escape_codeblock', $body);
        $body = preg_replace_callback('/\\[url(.*?)\\[\\/(url)\\]/ism', 'red_escape_codeblock', $body);
        $body = preg_replace_callback('/\\[zrl(.*?)\\[\\/(zrl)\\]/ism', 'red_escape_codeblock', $body);
        $body = preg_replace_callback("/([^\\]\\='" . '"' . "\\/]|^|\\#\\^)(https?\\:\\/\\/[a-zA-Z0-9\\:\\/\\-\\?\\&\\;\\.\\=\\@\\_\\~\\#\\%\$\\!\\+\\,]+)/ism", 'red_zrl_callback', $body);
        $body = preg_replace_callback('/\\[\\$b64zrl(.*?)\\[\\/(zrl)\\]/ism', 'red_unescape_codeblock', $body);
        $body = preg_replace_callback('/\\[\\$b64url(.*?)\\[\\/(url)\\]/ism', 'red_unescape_codeblock', $body);
        $body = preg_replace_callback('/\\[\\$b64code(.*?)\\[\\/(code)\\]/ism', 'red_unescape_codeblock', $body);
        // fix any img tags that should be zmg
        $body = preg_replace_callback('/\\[img(.*?)\\](.*?)\\[\\/img\\]/ism', 'red_zrlify_img_callback', $body);
        $body = bb_translate_video($body);
        /**
         * Fold multi-line [code] sequences
         */
        $body = preg_replace('/\\[\\/code\\]\\s*\\[code\\]/ism', "\n", $body);
        $body = scale_external_images($body, false);
        // Look for tags and linkify them
        $results = linkify_tags($a, $body, $uid ? $uid : $profile_uid);
        if ($results) {
            // Set permissions based on tag replacements
            set_linkified_perms($results, $str_contact_allow, $str_group_allow, $profile_uid, $parent_item, $private);
            $post_tags = array();
            foreach ($results as $result) {
                $success = $result['success'];
                if ($success['replaced']) {
                    $post_tags[] = array('uid' => $profile_uid, 'type' => $success['termtype'], 'otype' => TERM_OBJ_POST, 'term' => $success['term'], 'url' => $success['url']);
                }
            }
        }
        /**
         *
         * When a photo was uploaded into the message using the (profile wall) ajax 
         * uploader, The permissions are initially set to disallow anybody but the
         * owner from seeing it. This is because the permissions may not yet have been
         * set for the post. If it's private, the photo permissions should be set
         * appropriately. But we didn't know the final permissions on the post until
         * now. So now we'll look for links of uploaded photos and attachments that are in the
         * post and set them to the same permissions as the post itself.
         *
         * If the post was end-to-end encrypted we can't find images and attachments in the body,
         * use our media_str input instead which only contains these elements - but only do this
         * when encrypted content exists because the photo/attachment may have been removed from 
         * the post and we should keep it private. If it's encrypted we have no way of knowing
         * so we'll set the permissions regardless and realise that the media may not be 
         * referenced in the post. 
         *
         * What is preventing us from being able to upload photos into comments is dealing with
         * the photo and attachment permissions, since we don't always know who was in the 
         * distribution for the top level post.
         * 
         * We might be able to provide this functionality with a lot of fiddling:
         * - if the top level post is public (make the photo public)
         * - if the top level post was written by us or a wall post that belongs to us (match the top level post)
         * - if the top level post has privacy mentions, add those to the permissions.
         * - otherwise disallow the photo *or* make the photo public. This is the part that gets messy. 
         */
        if (!$preview) {
            fix_attached_photo_permissions($profile_uid, $owner_xchan['xchan_hash'], strpos($body, '[/crypt]') ? $_POST['media_str'] : $body, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny);
            fix_attached_file_permissions($channel, $observer['xchan_hash'], strpos($body, '[/crypt]') ? $_POST['media_str'] : $body, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny);
        }
        $attachments = '';
        $match = false;
        if (preg_match_all('/(\\[attachment\\](.*?)\\[\\/attachment\\])/', $body, $match)) {
            $attachments = array();
            foreach ($match[2] as $mtch) {
                $hash = substr($mtch, 0, strpos($mtch, ','));
                $rev = intval(substr($mtch, strpos($mtch, ',')));
                $r = attach_by_hash_nodata($hash, $rev);
                if ($r['success']) {
                    $attachments[] = array('href' => $a->get_baseurl() . '/attach/' . $r['data']['hash'], 'length' => $r['data']['filesize'], 'type' => $r['data']['filetype'], 'title' => urlencode($r['data']['filename']), 'revision' => $r['data']['revision']);
                }
                $body = str_replace($match[1], '', $body);
            }
        }
    }
    // BBCODE end alert
    if (strlen($categories)) {
        $cats = explode(',', $categories);
        foreach ($cats as $cat) {
            $post_tags[] = array('uid' => $profile_uid, 'type' => TERM_CATEGORY, 'otype' => TERM_OBJ_POST, 'term' => trim($cat), 'url' => $owner_xchan['xchan_url'] . '?f=&cat=' . urlencode(trim($cat)));
        }
    }
    $item_unseen = 1;
    // determine if this is a wall post
    if ($parent) {
        if ($parent_item['item_flags'] & ITEM_WALL) {
            $item_flags = $item_flags | ITEM_WALL;
        }
    } else {
        if (!$webpage) {
            $item_flags = $item_flags | ITEM_WALL;
        }
    }
    if ($origin) {
        $item_flags = $item_flags | ITEM_ORIGIN;
    }
    if ($moderated) {
        $item_restrict = $item_restrict | ITEM_MODERATED;
    }
    if ($webpage) {
        $item_restrict = $item_restrict | $webpage;
    }
    if (!strlen($verb)) {
        $verb = ACTIVITY_POST;
    }
    $notify_type = $parent ? 'comment-new' : 'wall-new';
    if (!$mid) {
        $mid = $message_id ? $message_id : item_message_id();
    }
    if (!$parent_mid) {
        $parent_mid = $mid;
    }
    if ($parent_item) {
        $parent_mid = $parent_item['mid'];
    }
    // Fallback so that we alway have a thr_parent
    if (!$thr_parent) {
        $thr_parent = $mid;
    }
    $datarray = array();
    if (!$parent) {
        $item_flags = $item_flags | ITEM_THREAD_TOP;
    }
    if ($consensus) {
        $item_flags |= ITEM_CONSENSUS;
    }
    if (!$plink && $item_flags & ITEM_THREAD_TOP) {
        $plink = z_root() . '/channel/' . $channel['channel_address'] . '/?f=&mid=' . $mid;
    }
    $datarray['aid'] = $channel['channel_account_id'];
    $datarray['uid'] = $profile_uid;
    $datarray['owner_xchan'] = $owner_hash ? $owner_hash : $owner_xchan['xchan_hash'];
    $datarray['author_xchan'] = $observer['xchan_hash'];
    $datarray['created'] = $created;
    $datarray['edited'] = $orig_post ? datetime_convert() : $created;
    $datarray['expires'] = $expires;
    $datarray['commented'] = $orig_post ? datetime_convert() : $created;
    $datarray['received'] = $orig_post ? datetime_convert() : $created;
    $datarray['changed'] = $orig_post ? datetime_convert() : $created;
    $datarray['mid'] = $mid;
    $datarray['parent_mid'] = $parent_mid;
    $datarray['mimetype'] = $mimetype;
    $datarray['title'] = $title;
    $datarray['body'] = $body;
    $datarray['app'] = $app;
    $datarray['location'] = $location;
    $datarray['coord'] = $coord;
    $datarray['verb'] = $verb;
    $datarray['obj_type'] = $obj_type;
    $datarray['allow_cid'] = $str_contact_allow;
    $datarray['allow_gid'] = $str_group_allow;
    $datarray['deny_cid'] = $str_contact_deny;
    $datarray['deny_gid'] = $str_group_deny;
    $datarray['item_private'] = $private;
    $datarray['attach'] = $attachments;
    $datarray['thr_parent'] = $thr_parent;
    $datarray['postopts'] = $postopts;
    $datarray['item_restrict'] = $item_restrict;
    $datarray['item_flags'] = $item_flags;
    $datarray['layout_mid'] = $layout_mid;
    $datarray['public_policy'] = $public_policy;
    $datarray['comment_policy'] = map_scope($channel['channel_w_comment']);
    $datarray['term'] = $post_tags;
    $datarray['plink'] = $plink;
    $datarray['route'] = $route;
    $datarray['item_unseen'] = $item_unseen;
    // preview mode - prepare the body for display and send it via json
    if ($preview) {
        require_once 'include/conversation.php';
        $datarray['owner'] = $owner_xchan;
        $datarray['author'] = $observer;
        $datarray['attach'] = json_encode($datarray['attach']);
        $o = conversation($a, array($datarray), 'search', false, 'preview');
        //		logger('preview: ' . $o, LOGGER_DEBUG);
        echo json_encode(array('preview' => $o));
        killme();
    }
    if ($orig_post) {
        $datarray['edit'] = true;
    }
    call_hooks('post_local', $datarray);
    if (x($datarray, 'cancel')) {
        logger('mod_item: post cancelled by plugin.');
        if ($return_path) {
            goaway($a->get_baseurl() . "/" . $return_path);
        }
        $json = array('cancel' => 1);
        if (x($_REQUEST, 'jsreload') && strlen($_REQUEST['jsreload'])) {
            $json['reload'] = $a->get_baseurl() . '/' . $_REQUEST['jsreload'];
        }
        echo json_encode($json);
        killme();
    }
    if (mb_strlen($datarray['title']) > 255) {
        $datarray['title'] = mb_substr($datarray['title'], 0, 255);
    }
    if (array_key_exists('item_private', $datarray) && $datarray['item_private']) {
        $datarray['body'] = trim(z_input_filter($datarray['uid'], $datarray['body'], $datarray['mimetype']));
        if ($uid) {
            if ($channel['channel_hash'] === $datarray['author_xchan']) {
                $datarray['sig'] = base64url_encode(rsa_sign($datarray['body'], $channel['channel_prvkey']));
                $datarray['item_flags'] = $datarray['item_flags'] | ITEM_VERIFIED;
            }
        }
        logger('Encrypting local storage');
        $key = get_config('system', 'pubkey');
        $datarray['item_flags'] = $datarray['item_flags'] | ITEM_OBSCURED;
        if ($datarray['title']) {
            $datarray['title'] = json_encode(crypto_encapsulate($datarray['title'], $key));
        }
        if ($datarray['body']) {
            $datarray['body'] = json_encode(crypto_encapsulate($datarray['body'], $key));
        }
    }
    if ($orig_post) {
        $datarray['id'] = $post_id;
        item_store_update($datarray, $execflag);
        update_remote_id($channel, $post_id, $webpage, $pagetitle, $namespace, $remote_id, $mid);
        if (!$nopush) {
            proc_run('php', "include/notifier.php", 'edit_post', $post_id);
        }
        if (x($_REQUEST, 'return') && strlen($return_path)) {
            logger('return: ' . $return_path);
            goaway($a->get_baseurl() . "/" . $return_path);
        }
        killme();
    } else {
        $post_id = 0;
    }
    $post = item_store($datarray, $execflag);
    $post_id = $post['item_id'];
    if ($post_id) {
        logger('mod_item: saved item ' . $post_id);
        if ($parent) {
            // only send comment notification if this is a wall-to-wall comment,
            // otherwise it will happen during delivery
            if ($datarray['owner_xchan'] != $datarray['author_xchan'] && $parent_item['item_flags'] & ITEM_WALL) {
                notification(array('type' => NOTIFY_COMMENT, 'from_xchan' => $datarray['author_xchan'], 'to_xchan' => $datarray['owner_xchan'], 'item' => $datarray, 'link' => $a->get_baseurl() . '/display/' . $datarray['mid'], 'verb' => ACTIVITY_POST, 'otype' => 'item', 'parent' => $parent, 'parent_mid' => $parent_item['mid']));
            }
        } else {
            $parent = $post_id;
            if ($datarray['owner_xchan'] != $datarray['author_xchan']) {
                notification(array('type' => NOTIFY_WALL, 'from_xchan' => $datarray['author_xchan'], 'to_xchan' => $datarray['owner_xchan'], 'item' => $datarray, 'link' => $a->get_baseurl() . '/display/' . $datarray['mid'], 'verb' => ACTIVITY_POST, 'otype' => 'item'));
            }
            if ($uid && $uid == $profile_uid && !$datarray['item_restrict']) {
                q("update channel set channel_lastpost = '%s' where channel_id = %d", dbesc(datetime_convert()), intval($uid));
            }
        }
        // photo comments turn the corresponding item visible to the profile wall
        // This way we don't see every picture in your new photo album posted to your wall at once.
        // They will show up as people comment on them.
        if ($parent_item['item_restrict'] & ITEM_HIDDEN) {
            $r = q("UPDATE `item` SET `item_restrict` = %d WHERE `id` = %d", intval($parent_item['item_restrict'] - ITEM_HIDDEN), intval($parent_item['id']));
        }
    } else {
        logger('mod_item: unable to retrieve post that was just stored.');
        notice(t('System error. Post not saved.') . EOL);
        goaway($a->get_baseurl() . "/" . $return_path);
        // NOTREACHED
    }
    if ($parent) {
        // Store the comment signature information in case we need to relay to Diaspora
        $ditem = $datarray;
        $ditem['author'] = $observer;
        store_diaspora_comment_sig($ditem, $channel, $parent_item, $post_id, $walltowall_comment ? 1 : 0);
    }
    update_remote_id($channel, $post_id, $webpage, $pagetitle, $namespace, $remote_id, $mid);
    $datarray['id'] = $post_id;
    $datarray['llink'] = $a->get_baseurl() . '/display/' . $channel['channel_address'] . '/' . $post_id;
    call_hooks('post_local_end', $datarray);
    if (!$nopush) {
        proc_run('php', 'include/notifier.php', $notify_type, $post_id);
    }
    logger('post_complete');
    // figure out how to return, depending on from whence we came
    if ($api_source) {
        return $post;
    }
    if ($return_path) {
        goaway($a->get_baseurl() . "/" . $return_path);
    }
    $json = array('success' => 1);
    if (x($_REQUEST, 'jsreload') && strlen($_REQUEST['jsreload'])) {
        $json['reload'] = $a->get_baseurl() . '/' . $_REQUEST['jsreload'];
    }
    logger('post_json: ' . print_r($json, true), LOGGER_DEBUG);
    echo json_encode($json);
    killme();
    // NOTREACHED
}
Esempio n. 3
0
function import_items($channel, $items, $sync = false, $relocate = null)
{
    if ($channel && $items) {
        $allow_code = false;
        $r = q("select account_id, account_roles, channel_pageflags from account left join channel on channel_account_id = account_id \n\t\t\twhere channel_id = %d limit 1", intval($channel['channel_id']));
        if ($r) {
            if ($r[0]['account_roles'] & ACCOUNT_ROLE_ALLOWCODE || $r[0]['channel_pageflags'] & PAGE_ALLOWCODE) {
                $allow_code = true;
            }
        }
        $deliver = false;
        // Don't deliver any messages or notifications when importing
        foreach ($items as $i) {
            $item_result = false;
            $item = get_item_elements($i, $allow_code);
            if (!$item) {
                continue;
            }
            if ($relocate && $item['mid'] === $item['parent_mid']) {
                item_url_replace($channel, $item, $relocate['url'], z_root(), $relocate['channel_address']);
            }
            $r = q("select id, edited from item where mid = '%s' and uid = %d limit 1", dbesc($item['mid']), intval($channel['channel_id']));
            if ($r) {
                // flags may have changed and we are probably relocating the post,
                // so force an update even if we have the same timestamp
                if ($item['edited'] >= $r[0]['edited']) {
                    $item['id'] = $r[0]['id'];
                    $item['uid'] = $channel['channel_id'];
                    $item_result = item_store_update($item, $allow_code, $deliver);
                }
            } else {
                $item['aid'] = $channel['channel_account_id'];
                $item['uid'] = $channel['channel_id'];
                $item_result = item_store($item, $allow_code, $deliver);
            }
            fix_attached_photo_permissions($channel['channel_id'], $item['author_xchan'], $item['body'], $item['allow_cid'], $item['allow_gid'], $item['deny_cid'], $item['deny_gid']);
            fix_attached_file_permissions($channel, $item['author_xchan'], $item['body'], $item['allow_cid'], $item['allow_gid'], $item['deny_cid'], $item['deny_gid']);
            if ($sync && $item['item_wall']) {
                // deliver singletons if we have any
                if ($item_result && $item_result['success']) {
                    Zotlabs\Daemon\Master::Summon(['Notifier', 'single_activity', $item_result['item_id']]);
                }
            }
        }
    }
}