NULL_DATE) { $d = datetime_convert(); if($d > $item['comments_closed']) return true; } return false; } function item_normal() { return " and item.item_hidden = 0 and item.item_type = 0 and item.item_deleted = 0 and item.item_unpublished = 0 and item.item_delayed = 0 and item.item_pending_remove = 0 and item.item_blocked = 0 and item.obj_type != '" . ACTIVITY_OBJ_FILE . "' "; } function item_normal_search() { return " and item.item_hidden = 0 and item.item_type in (0,3,6,7) and item.item_deleted = 0 and item.item_unpublished = 0 and item.item_delayed = 0 and item.item_pending_remove = 0 and item.item_blocked = 0 and item.obj_type != '" . ACTIVITY_OBJ_FILE . "' "; } function item_normal_update() { return " and item.item_hidden = 0 and item.item_type = 0 and item.item_unpublished = 0 and item.item_delayed = 0 and item.item_pending_remove = 0 and item.item_blocked = 0 and item.obj_type != '" . ACTIVITY_OBJ_FILE . "' "; } /** * @brief * * This is a compatibility function primarily for plugins, because * in earlier DB schemas this was a much simpler single integer compare * * @param array $item */ function is_item_normal($item) { if(intval($item['item_hidden']) || intval($item['item_type']) || intval($item['item_deleted']) || intval($item['item_unpublished']) || intval($item['item_delayed']) || intval($item['item_pending_remove']) || intval($item['item_blocked']) || ($item['obj_type'] == ACTIVITY_OBJ_FILE)) return false; return true; } /** * @brief Decide if current observer has sufficient privileges to comment on item. * * This function examines the comment_policy attached to an item and decides if the current observer has * sufficient privileges to comment. This will normally be called on a remote site where perm_is_allowed() * will not be suitable because the post owner does not have a local channel_id. * Generally we should look at the item - in particular the author['abook_flags'] and see if ABOOK_FLAG_SELF is set. * If it is, you should be able to use perm_is_allowed( ... 'post_comments'), and if it isn't you need to call * can_comment_on_post() * We also check the comments_closed date/time on the item if this is set. * * @param string $observer_xchan * @param array $item * @return boolean */ function can_comment_on_post($observer_xchan, $item) { // logger('Comment_policy: ' . $item['comment_policy'], LOGGER_DEBUG); $x = [ 'observer_hash' => $observer_xchan, 'item' => $item, 'allowed' => 'unset' ]; /** * @hooks can_comment_on_post * Called when deciding whether or not to present a comment box for a post. * * \e string \b observer_hash * * \e array \b item * * \e boolean \b allowed - return value */ call_hooks('can_comment_on_post', $x); if($x['allowed'] !== 'unset') { return $x['allowed']; } if(! $observer_xchan) { return false; } if($item['comment_policy'] === 'none') { return false; } if(comments_are_now_closed($item)) { return false; } if($observer_xchan === $item['author_xchan'] || $observer_xchan === $item['owner_xchan']) { return true; } switch($item['comment_policy']) { case 'self': if($observer_xchan === $item['author_xchan'] || $observer_xchan === $item['owner_xchan']) { return true; } break; case 'public': case 'authenticated': // We don't really allow or support public comments yet, but anonymous // folks won't ever reach this point (as $observer_xchan will be empty). // This means the viewer has an xchan and we can identify them. return true; break; case 'any connections': case 'contacts': case '': if(local_channel() && get_abconfig(local_channel(),$item['owner_xchan'],'their_perms','post_comments')) { return true; } if(intval($item['item_wall']) && perm_is_allowed($item['uid'],$observer_xchan,'post_comments')) { return true; } break; default: break; } if(strstr($item['comment_policy'],'network:') && strstr($item['comment_policy'],'red')) { return true; } if(strstr($item['comment_policy'],'site:') && strstr($item['comment_policy'],App::get_hostname())) { return true; } return false; } /** * @brief Adds $hash to the item source route specified by $iid. * * $item['route'] contains a comma-separated list of xchans that sent the current message, * somewhat analogous to the * Received: header line in email. We can use this to perform * loop detection and to avoid sending a particular item to any "upstream" sender (they * already have a copy because they sent it to us). * * Modifies item in the database pointed to by $iid. * * @param integer $iid * item['id'] of target item * @param string $hash * xchan_hash of the channel that sent the item */ function add_source_route($iid, $hash) { // logger('add_source_route ' . $iid . ' ' . $hash, LOGGER_DEBUG); if((! $iid) || (! $hash)) return; $r = q("select route from item where id = %d limit 1", intval($iid) ); if($r) { $new_route = (($r[0]['route']) ? $r[0]['route'] . ',' : '') . $hash; q("update item set route = '%s' where id = %d", (dbesc($new_route)), intval($iid) ); } } /** * @brief Post an activity. * * In its simplest form one needs only to set $arr['body'] to post a note to the logged in channel's wall. * Much more complex activities can be created. Permissions are checked. No filtering, tag expansion * or other processing is performed. * * @param array $arr * @param boolean $allow_code (optional) default false * @param boolean $deliver (optional) default true * @returns array * * \e boolean \b success true or false * * \e array \b activity the resulting activity if successful */ function post_activity_item($arr, $allow_code = false, $deliver = true) { $ret = array('success' => false); $is_comment = false; if((($arr['parent']) && $arr['parent'] != $arr['id']) || (($arr['parent_mid']) && $arr['parent_mid'] != $arr['mid'])) $is_comment = true; if(! array_key_exists('item_origin',$arr)) $arr['item_origin'] = 1; if(! array_key_exists('item_wall',$arr) && (! $is_comment)) $arr['item_wall'] = 1; if(! array_key_exists('item_thread_top',$arr) && (! $is_comment)) $arr['item_thread_top'] = 1; $channel = App::get_channel(); $observer = App::get_observer(); $arr['aid'] = ((x($arr,'aid')) ? $arr['aid'] : $channel['channel_account_id']); $arr['uid'] = ((x($arr,'uid')) ? $arr['uid'] : $channel['channel_id']); if(! perm_is_allowed($arr['uid'],$observer['xchan_hash'],(($is_comment) ? 'post_comments' : 'post_wall'))) { $ret['message'] = t('Permission denied'); return $ret; } $arr['public_policy'] = ((array_key_exists('public_policy',$arr)) ? escape_tags($arr['public_policy']) : map_scope(PermissionLimits::Get($channel['channel_id'],'view_stream'),true)); if($arr['public_policy']) $arr['item_private'] = 1; if(! array_key_exists('mimetype',$arr)) $arr['mimetype'] = 'text/bbcode'; $arr['mid'] = ((x($arr,'mid')) ? $arr['mid'] : item_message_id()); $arr['parent_mid'] = ((x($arr,'parent_mid')) ? $arr['parent_mid'] : $arr['mid']); $arr['thr_parent'] = ((x($arr,'thr_parent')) ? $arr['thr_parent'] : $arr['mid']); $arr['owner_xchan'] = ((x($arr,'owner_xchan')) ? $arr['owner_xchan'] : $channel['channel_hash']); $arr['author_xchan'] = ((x($arr,'author_xchan')) ? $arr['author_xchan'] : $observer['xchan_hash']); $arr['verb'] = ((x($arr,'verb')) ? $arr['verb'] : ACTIVITY_POST); $arr['obj_type'] = ((x($arr,'obj_type')) ? $arr['obj_type'] : ACTIVITY_OBJ_NOTE); if(($is_comment) && ($arr['obj_type'] === ACTIVITY_OBJ_NOTE)) $arr['obj_type'] = ACTIVITY_OBJ_COMMENT; if(! ( array_key_exists('allow_cid',$arr) || array_key_exists('allow_gid',$arr) || array_key_exists('deny_cid',$arr) || array_key_exists('deny_gid',$arr))) { $arr['allow_cid'] = $channel['channel_allow_cid']; $arr['allow_gid'] = $channel['channel_allow_gid']; $arr['deny_cid'] = $channel['channel_deny_cid']; $arr['deny_gid'] = $channel['channel_deny_gid']; } $arr['comment_policy'] = map_scope(PermissionLimits::Get($channel['channel_id'],'post_comments')); if ((! $arr['plink']) && (intval($arr['item_thread_top']))) { $arr['plink'] = substr(z_root() . '/channel/' . $channel['channel_address'] . '/?f=&mid=' . urlencode($arr['mid']),0,190); } // for the benefit of plugins, we will behave as if this is an API call rather than a normal online post $_REQUEST['api_source'] = 1; /** * @hooks post_local * Called when an item has been posted on this machine via mod/item.php (also via API). */ call_hooks('post_local', $arr); if(x($arr, 'cancel')) { logger('Post cancelled by plugin.'); return $ret; } $post = item_store($arr,$allow_code,$deliver); if($post['success']) { $post_id = $post['item_id']; $ret['success'] = true; $ret['item_id'] = $post_id; $ret['activity'] = $post['item']; /** * @hooks post_local_end * Called after a local post operation has completed. * * \e array - the item returned from item_store() */ call_hooks('post_local_end', $ret['activity']); } if($post_id && $deliver) { Master::Summon([ 'Notifier','activity',$post_id ]); } $ret['success'] = true; return $ret; } function validate_item_elements($message,$arr) { $result = array('success' => false); if(! array_key_exists('created',$arr)) $result['message'] = 'missing created, possible author/owner lookup failure'; if((! $arr['mid']) || (! $arr['parent_mid'])) $result['message'] = 'missing message-id or parent message-id'; if(array_key_exists('flags',$message) && in_array('relay',$message['flags']) && $arr['mid'] === $arr['parent_mid']) $result['message'] = 'relay set on top level post'; if(! $result['message']) $result['success'] = true; return $result; } /** * @brief Limit length on imported system messages. * * The purpose of this function is to apply system message length limits to * imported messages without including any embedded photos in the length. * * @param string $body * @return string */ function limit_body_size($body) { $maxlen = get_max_import_size(); // If the length of the body, including the embedded images, is smaller // than the maximum, then don't waste time looking for the images if($maxlen && (strlen($body) > $maxlen)) { $orig_body = $body; $new_body = ''; $textlen = 0; $img_start = strpos($orig_body, '[img'); $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false); $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false); while(($img_st_close !== false) && ($img_end !== false)) { $img_st_close++; // make it point to AFTER the closing bracket $img_end += $img_start; $img_end += strlen('[/img]'); if(! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) { // This is an embedded image if( ($textlen + $img_start) > $maxlen ) { if($textlen < $maxlen) { logger('The limit happens before an embedded image', LOGGER_DEBUG); $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen); $textlen = $maxlen; } } else { $new_body = $new_body . substr($orig_body, 0, $img_start); $textlen += $img_start; } $new_body = $new_body . substr($orig_body, $img_start, $img_end - $img_start); } else { if( ($textlen + $img_end) > $maxlen ) { if($textlen < $maxlen) { $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen); $textlen = $maxlen; } } else { $new_body = $new_body . substr($orig_body, 0, $img_end); $textlen += $img_end; } } $orig_body = substr($orig_body, $img_end); if($orig_body === false) // in case the body ends on a closing image tag $orig_body = ''; $img_start = strpos($orig_body, '[img'); $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false); $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false); } if( ($textlen + strlen($orig_body)) > $maxlen) { if($textlen < $maxlen) { $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen); $textlen = $maxlen; } } else { $new_body = $new_body . $orig_body; $textlen += strlen($orig_body); } return $new_body; } else return $body; } function title_is_body($title, $body) { $title = strip_tags($title); $title = trim($title); $title = str_replace(array("\n", "\r", "\t", " "), array("","","",""), $title); $body = strip_tags($body); $body = trim($body); $body = str_replace(array("\n", "\r", "\t", " "), array("","","",""), $body); if (strlen($title) < strlen($body)) $body = substr($body, 0, strlen($title)); if (($title != $body) and (substr($title, -3) == "...")) { $pos = strrpos($title, "..."); if ($pos > 0) { $title = substr($title, 0, $pos); $body = substr($body, 0, $pos); } } return($title == $body); } function get_item_elements($x,$allow_code = false) { $arr = array(); $arr['body'] = $x['body']; $maxlen = get_max_import_size(); if($maxlen && mb_strlen($arr['body']) > $maxlen) { $arr['body'] = mb_substr($arr['body'],0,$maxlen,'UTF-8'); logger('get_item_elements: message length exceeds max_import_size: truncated'); } $arr['created'] = datetime_convert('UTC','UTC',$x['created']); $arr['edited'] = datetime_convert('UTC','UTC',$x['edited']); if($arr['edited'] > datetime_convert()) $arr['edited'] = datetime_convert(); $arr['expires'] = ((x($x,'expires') && $x['expires']) ? datetime_convert('UTC','UTC',$x['expires']) : NULL_DATE); $arr['commented'] = ((x($x,'commented') && $x['commented']) ? datetime_convert('UTC','UTC',$x['commented']) : $arr['created']); $arr['comments_closed'] = ((x($x,'comments_closed') && $x['comments_closed']) ? datetime_convert('UTC','UTC',$x['comments_closed']) : NULL_DATE); $arr['title'] = (($x['title']) ? htmlspecialchars($x['title'], ENT_COMPAT,'UTF-8',false) : ''); if(mb_strlen($arr['title']) > 255) $arr['title'] = mb_substr($arr['title'],0,255); $arr['app'] = (($x['app']) ? htmlspecialchars($x['app'], ENT_COMPAT,'UTF-8',false) : ''); $arr['route'] = (($x['route']) ? htmlspecialchars($x['route'], ENT_COMPAT,'UTF-8',false) : ''); $arr['mid'] = (($x['message_id']) ? htmlspecialchars($x['message_id'], ENT_COMPAT,'UTF-8',false) : ''); $arr['parent_mid'] = (($x['message_top']) ? htmlspecialchars($x['message_top'], ENT_COMPAT,'UTF-8',false) : ''); $arr['thr_parent'] = (($x['message_parent']) ? htmlspecialchars($x['message_parent'], ENT_COMPAT,'UTF-8',false) : ''); $arr['plink'] = (($x['permalink']) ? htmlspecialchars($x['permalink'], ENT_COMPAT,'UTF-8',false) : ''); $arr['location'] = (($x['location']) ? htmlspecialchars($x['location'], ENT_COMPAT,'UTF-8',false) : ''); $arr['coord'] = (($x['longlat']) ? htmlspecialchars($x['longlat'], ENT_COMPAT,'UTF-8',false) : ''); $arr['verb'] = (($x['verb']) ? htmlspecialchars($x['verb'], ENT_COMPAT,'UTF-8',false) : ''); $arr['mimetype'] = (($x['mimetype']) ? htmlspecialchars($x['mimetype'], ENT_COMPAT,'UTF-8',false) : ''); $arr['obj_type'] = (($x['object_type']) ? htmlspecialchars($x['object_type'], ENT_COMPAT,'UTF-8',false) : ''); $arr['tgt_type'] = (($x['target_type']) ? htmlspecialchars($x['target_type'], ENT_COMPAT,'UTF-8',false) : ''); $arr['public_policy'] = (($x['public_scope']) ? htmlspecialchars($x['public_scope'], ENT_COMPAT,'UTF-8',false) : ''); if($arr['public_policy'] === 'public') $arr['public_policy'] = ''; $arr['comment_policy'] = (($x['comment_scope']) ? htmlspecialchars($x['comment_scope'], ENT_COMPAT,'UTF-8',false) : 'contacts'); $arr['sig'] = (($x['signature']) ? htmlspecialchars($x['signature'], ENT_COMPAT,'UTF-8',false) : ''); $arr['obj'] = activity_sanitise($x['object']); $arr['target'] = activity_sanitise($x['target']); $arr['attach'] = activity_sanitise($x['attach']); $arr['term'] = decode_tags($x['tags']); $arr['iconfig'] = decode_item_meta($x['meta']); $arr['item_private'] = ((array_key_exists('flags',$x) && is_array($x['flags']) && in_array('private',$x['flags'])) ? 1 : 0); $arr['item_flags'] = 0; if(array_key_exists('flags',$x)) { if(in_array('consensus',$x['flags'])) $arr['item_consensus'] = 1; if(in_array('deleted',$x['flags'])) $arr['item_deleted'] = 1; if(in_array('notshown',$x['flags'])) $arr['item_notshown'] = 1; if(in_array('obscured',$x['flags'])) $arr['item_obscured'] = 1; // hidden item are no longer propagated - notshown may be a suitable alternative if(in_array('hidden',$x['flags'])) $arr['item_hidden'] = 1; } // Here's the deal - the site might be down or whatever but if there's a new person you've never // seen before sending stuff to your stream, we MUST be able to look them up and import their data from their // hub and verify that they are legit - or else we're going to toss the post. We only need to do this // once, and after that your hub knows them. Sure some info is in the post, but it's only a transit identifier // and not enough info to be able to look you up from your hash - which is the only thing stored with the post. $xchan_hash = import_author_xchan($x['author']); if($xchan_hash) $arr['author_xchan'] = $xchan_hash; else return array(); // save a potentially expensive lookup if author == owner if($arr['author_xchan'] === make_xchan_hash($x['owner']['guid'],$x['owner']['guid_sig'])) $arr['owner_xchan'] = $arr['author_xchan']; else { $xchan_hash = import_author_xchan($x['owner']); if($xchan_hash) { $arr['owner_xchan'] = $xchan_hash; } else { return array(); } } // Check signature on the body text received. // This presents an issue that we aren't verifying the text that is actually displayed // on this site. We are however verifying the received text was exactly as received. // We have every right to strip content that poses a security risk. You are welcome to // create a plugin to verify the content after filtering if this offends you. if($arr['sig']) { // check the supplied signature against the supplied content. // Note that we will purify the content which could change it. $r = q("select xchan_pubkey from xchan where xchan_hash = '%s' limit 1", dbesc($arr['author_xchan']) ); if($r) { if($r[0]['xchan_pubkey']) { if(rsa_verify($x['body'],base64url_decode($arr['sig']),$r[0]['xchan_pubkey'])) { $arr['item_verified'] = 1; } else { logger('get_item_elements: message verification failed.'); } } else { // If we don't have a public key, strip the signature so it won't show as invalid. // This won't happen in normal use, but could happen if import_author_xchan() // failed to load the zot-info packet due to a server failure and had // to create an alternate xchan with network 'unknown' unset($arr['sig']); } } } // if the input is markdown, remove one level of html escaping. // It will be re-applied in item_store() and/or item_store_update(). // Do this after signature checking as the original signature // was generated on the escaped content. if($arr['mimetype'] === 'text/markdown') $arr['body'] = MarkdownSoap::unescape($arr['body']); if(array_key_exists('revision',$x)) { // extended export encoding $arr['revision'] = $x['revision']; $arr['allow_cid'] = $x['allow_cid']; $arr['allow_gid'] = $x['allow_gid']; $arr['deny_cid'] = $x['deny_cid']; $arr['deny_gid'] = $x['deny_gid']; $arr['layout_mid'] = $x['layout_mid']; $arr['postopts'] = $x['postopts']; $arr['resource_id'] = $x['resource_id']; $arr['resource_type'] = $x['resource_type']; $arr['attach'] = $x['attach']; $arr['item_origin'] = $x['item_origin']; $arr['item_unseen'] = $x['item_unseen']; $arr['item_starred'] = $x['item_starred']; $arr['item_uplink'] = $x['item_uplink']; $arr['item_consensus'] = $x['item_consensus']; $arr['item_wall'] = $x['item_wall']; $arr['item_thread_top'] = $x['item_thread_top']; $arr['item_notshown'] = $x['item_notshown']; $arr['item_nsfw'] = $x['item_nsfw']; // local only $arr['item_relay'] = $x['item_relay']; $arr['item_mentionsme'] = $x['item_mentionsme']; $arr['item_nocomment'] = $x['item_nocomment']; $arr['item_obscured'] = $x['item_obscured']; // local only $arr['item_verified'] = $x['item_verified']; $arr['item_retained'] = $x['item_retained']; $arr['item_rss'] = $x['item_rss']; $arr['item_deleted'] = $x['item_deleted']; $arr['item_type'] = $x['item_type']; $arr['item_hidden'] = $x['item_hidden']; $arr['item_unpublished'] = $x['item_unpublished']; $arr['item_delayed'] = $x['item_delayed']; $arr['item_pending_remove'] = $x['item_pending_remove']; $arr['item_blocked'] = $x['item_blocked']; if(array_key_exists('item_flags',$x)) { if($x['item_flags'] & 0x0004) $arr['item_starred'] = 1; if($x['item_flags'] & 0x0008) $arr['item_uplink'] = 1; if($x['item_flags'] & 0x0010) $arr['item_consensus'] = 1; if($x['item_flags'] & 0x0020) $arr['item_wall'] = 1; if($x['item_flags'] & 0x0040) $arr['item_thread_top'] = 1; if($x['item_flags'] & 0x0080) $arr['item_notshown'] = 1; if($x['item_flags'] & 0x0100) $arr['item_nsfw'] = 1; if($x['item_flags'] & 0x0400) $arr['item_mentionsme'] = 1; if($x['item_flags'] & 0x0800) $arr['item_nocomment'] = 1; if($x['item_flags'] & 0x4000) $arr['item_retained'] = 1; if($x['item_flags'] & 0x8000) $arr['item_rss'] = 1; } if(array_key_exists('item_restrict',$x)) { if($x['item_restrict'] & 0x0001) $arr['item_hidden'] = 1; if($x['item_restrict'] & 0x0002) $arr['item_blocked'] = 1; if($x['item_restrict'] & 0x0010) $arr['item_deleted'] = 1; if($x['item_restrict'] & 0x0020) $arr['item_unpublished'] = 1; if($x['item_restrict'] & 0x0040) $arr['item_type'] = ITEM_TYPE_WEBPAGE; if($x['item_restrict'] & 0x0080) $arr['item_delayed'] = 1; if($x['item_restrict'] & 0x0100) $arr['item_type'] = ITEM_TYPE_BLOCK; if($x['item_restrict'] & 0x0200) $arr['item_type'] = ITEM_TYPE_PDL; if($x['item_restrict'] & 0x0400) $arr['item_type'] = ITEM_TYPE_BUG; if($x['item_restrict'] & 0x0800) $arr['item_pending_remove'] = 1; if($x['item_restrict'] & 0x1000) $arr['item_type'] = ITEM_TYPE_DOC; } } return $arr; } function import_author_xchan($x) { $arr = [ 'xchan' => $x, 'xchan_hash' => '' ]; /** * @hooks import_author_xchan * Called when looking up an author of a post by xchan_hash to ensure they have an xchan record on our site. * * \e array \b xchan * * \e string \b xchan_hash - Thre returned value */ call_hooks('import_author_xchan', $arr); if($arr['xchan_hash']) return $arr['xchan_hash']; $y = false; if((! array_key_exists('network', $x)) || ($x['network'] === 'zot')) { $y = import_author_zot($x); } // if we were told that it's a zot connection, don't probe/import anything else if(array_key_exists('network',$x) && $x['network'] === 'zot') return $y; if($x['network'] === 'rss') { $y = import_author_rss($x); } if(! $y) { $y = import_author_unknown($x); } return($y); } /** * @brief Imports an author from a RSS feed. * * @param array $x an associative array with * * \e string \b url * * \e string \b name * * \e string \b guid * @return boolean|string */ function import_author_rss($x) { if(! $x['url']) return false; $r = q("select xchan_hash from xchan where xchan_network = 'rss' and xchan_url = '%s' limit 1", dbesc($x['url']) ); if($r) { logger('In cache' , LOGGER_DEBUG); return $r[0]['xchan_hash']; } $name = trim($x['name']); $r = xchan_store_lowlevel( [ 'xchan_hash' => $x['guid'], 'xchan_guid' => $x['guid'], 'xchan_url' => $x['url'], 'xchan_name' => (($name) ? $name : t('(Unknown)')), 'xchan_name_date' => datetime_convert(), 'xchan_network' => 'rss' ] ); if($r && $x['photo']) { $photos = import_xchan_photo($x['photo']['src'],$x['url']); if($photos) { $r = q("update xchan set xchan_photo_date = '%s', xchan_photo_l = '%s', xchan_photo_m = '%s', xchan_photo_s = '%s', xchan_photo_mimetype = '%s' where xchan_url = '%s' and xchan_network = 'rss'", dbesc(datetime_convert()), dbesc($photos[0]), dbesc($photos[1]), dbesc($photos[2]), dbesc($photos[3]), dbesc($x['url']) ); if($r) return $x['url']; } } return false; } function import_author_unknown($x) { $arr = [ 'author' => $x, 'result' => false ]; /** * @hooks import_author * * \e array \b author * * \e boolean|string \b result - Return value, default false */ call_hooks('import_author', $arr); if($arr['result']) return $arr['result']; if(! $x['url']) return false; $r = q("select xchan_hash from xchan where xchan_network = 'unknown' and xchan_url = '%s' limit 1", dbesc($x['url']) ); if($r) { logger('In cache' , LOGGER_DEBUG); return $r[0]['xchan_hash']; } $name = trim($x['name']); $r = xchan_store_lowlevel( [ 'xchan_hash' => $x['url'], 'xchan_guid' => $x['url'], 'xchan_url' => $x['url'], 'xchan_name' => (($name) ? $name : t('(Unknown)')), 'xchan_name_date' => datetime_convert(), 'xchan_network' => 'unknown' ] ); if($r && $x['photo']) { $photos = import_xchan_photo($x['photo']['src'],$x['url']); if($photos) { $r = q("update xchan set xchan_photo_date = '%s', xchan_photo_l = '%s', xchan_photo_m = '%s', xchan_photo_s = '%s', xchan_photo_mimetype = '%s' where xchan_hash = '%s' and xchan_network = 'unknown'", dbesc(datetime_convert()), dbesc($photos[0]), dbesc($photos[1]), dbesc($photos[2]), dbesc($photos[3]), dbesc($x['url']) ); if($r) return $x['url']; } } return false; } function empty_acl($item) { return (($item['allow_cid'] === EMPTY_STR && $item['allow_gid'] === EMPTY_STR && $item['deny_cid'] === EMPTY_STR && $item['deny_gid'] === EMPTY_STR) ? true : false); } function encode_item($item,$mirror = false) { $x = []; $x['type'] = 'activity'; $x['encoding'] = 'zot'; $r = q("select channel_id from channel where channel_id = %d limit 1", intval($item['uid']) ); if($r) $comment_scope = PermissionLimits::Get($item['uid'],'post_comments'); else $comment_scope = 0; $scope = $item['public_policy']; if(! $scope) $scope = 'public'; $c_scope = map_scope($comment_scope); $key = get_config('system','prvkey'); // If we're trying to backup an item so that it's recoverable or for export/imprt, // add all the attributes we need to recover it if($mirror) { $x['id'] = $item['id']; $x['parent'] = $item['parent']; $x['uid'] = $item['uid']; $x['allow_cid'] = $item['allow_cid']; $x['allow_gid'] = $item['allow_gid']; $x['deny_cid'] = $item['deny_cid']; $x['deny_gid'] = $item['deny_gid']; $x['revision'] = $item['revision']; $x['layout_mid'] = $item['layout_mid']; $x['postopts'] = $item['postopts']; $x['resource_id'] = $item['resource_id']; $x['resource_type'] = $item['resource_type']; $x['attach'] = $item['attach']; $x['item_origin'] = $item['item_origin']; $x['item_unseen'] = $item['item_unseen']; $x['item_starred'] = $item['item_starred']; $x['item_uplink'] = $item['item_uplink']; $x['item_consensus'] = $item['item_consensus']; $x['item_wall'] = $item['item_wall']; $x['item_thread_top'] = $item['item_thread_top']; $x['item_notshown'] = $item['item_notshown']; $x['item_nsfw'] = $item['item_nsfw']; $x['item_relay'] = $item['item_relay']; $x['item_mentionsme'] = $item['item_mentionsme']; $x['item_nocomment'] = $item['item_nocomment']; $x['item_obscured'] = $item['item_obscured']; $x['item_verified'] = $item['item_verified']; $x['item_retained'] = $item['item_retained']; $x['item_rss'] = $item['item_rss']; $x['item_deleted'] = $item['item_deleted']; $x['item_type'] = $item['item_type']; $x['item_hidden'] = $item['item_hidden']; $x['item_unpublished'] = $item['item_unpublished']; $x['item_delayed'] = $item['item_delayed']; $x['item_pending_remove'] = $item['item_pending_remove']; $x['item_blocked'] = $item['item_blocked']; } $x['message_id'] = $item['mid']; $x['message_top'] = $item['parent_mid']; $x['message_parent'] = $item['thr_parent']; $x['created'] = $item['created']; $x['edited'] = $item['edited']; // always send 0's over the wire $x['expires'] = (($item['expires'] == '0001-01-01 00:00:00') ? '0000-00-00 00:00:00' : $item['expires']); $x['commented'] = $item['commented']; $x['mimetype'] = $item['mimetype']; $x['title'] = $item['title']; $x['body'] = $item['body']; $x['app'] = $item['app']; $x['verb'] = $item['verb']; $x['object_type'] = $item['obj_type']; $x['target_type'] = $item['tgt_type']; $x['permalink'] = $item['plink']; $x['location'] = $item['location']; $x['longlat'] = $item['coord']; $x['signature'] = $item['sig']; $x['route'] = $item['route']; $x['owner'] = encode_item_xchan($item['owner']); $x['author'] = encode_item_xchan($item['author']); if($item['obj']) $x['object'] = json_decode($item['obj'],true); if($item['target']) $x['target'] = json_decode($item['target'],true); if($item['attach']) $x['attach'] = json_decode($item['attach'],true); if($y = encode_item_flags($item)) $x['flags'] = $y; if($item['comments_closed'] > NULL_DATE) $x['comments_closed'] = $item['comments_closed']; $x['public_scope'] = $scope; if($item['item_nocomment']) $x['comment_scope'] = 'none'; else $x['comment_scope'] = $c_scope; if($item['term']) $x['tags'] = encode_item_terms($item['term'],$mirror); if($item['iconfig']) $x['meta'] = encode_item_meta($item['iconfig'],$mirror); logger('encode_item: ' . print_r($x,true), LOGGER_DATA); return $x; } /** * @brief * * @param int $scope * @param boolean $strip (optional) default false * @return string */ function map_scope($scope, $strip = false) { switch($scope) { case 0: return 'self'; case PERMS_PUBLIC: if($strip) return ''; return 'public'; case PERMS_NETWORK: return 'network: red'; case PERMS_AUTHED: return 'authenticated'; case PERMS_SITE: return 'site: ' . App::get_hostname(); case PERMS_PENDING: return 'any connections'; case PERMS_CONTACTS: default: return 'contacts'; } } /** * @brief Returns a descriptive text for a given $scope. * * @param string $scope * @return string translated string describing the scope */ function translate_scope($scope) { if(! $scope || $scope === 'public') return t('Visible to anybody on the internet.'); if(strpos($scope,'self') === 0) return t('Visible to you only.'); if(strpos($scope,'network:') === 0) return t('Visible to anybody in this network.'); if(strpos($scope,'authenticated') === 0) return t('Visible to anybody authenticated.'); if(strpos($scope,'site:') === 0) return sprintf( t('Visible to anybody on %s.'), strip_tags(substr($scope,6))); if(strpos($scope,'any connections') === 0) return t('Visible to all connections.'); if(strpos($scope,'contacts') === 0) return t('Visible to approved connections.'); if(strpos($scope,'specific') === 0) return t('Visible to specific connections.'); } /** * @brief * * @param array $xchan * @return array an associative array */ function encode_item_xchan($xchan) { $ret = array(); $ret['name'] = $xchan['xchan_name']; $ret['address'] = $xchan['xchan_addr']; $ret['url'] = $xchan['xchan_url']; $ret['network'] = $xchan['xchan_network']; $ret['photo'] = [ 'mimetype' => $xchan['xchan_photo_mimetype'], 'src' => $xchan['xchan_photo_m'] ]; $ret['guid'] = $xchan['xchan_guid']; $ret['guid_sig'] = $xchan['xchan_guid_sig']; return $ret; } function encode_item_terms($terms,$mirror = false) { $ret = array(); $allowed_export_terms = array( TERM_UNKNOWN, TERM_HASHTAG, TERM_MENTION, TERM_CATEGORY, TERM_BOOKMARK, TERM_COMMUNITYTAG, TERM_FORUM ); if($mirror) { $allowed_export_terms[] = TERM_PCATEGORY; $allowed_export_terms[] = TERM_FILE; } if($terms) { foreach($terms as $term) { if(in_array($term['ttype'],$allowed_export_terms)) $ret[] = array('tag' => $term['term'], 'url' => $term['url'], 'type' => termtype($term['ttype'])); } } return $ret; } function encode_item_meta($meta,$mirror = false) { $ret = array(); if($meta) { foreach($meta as $m) { if($m['sharing'] || $mirror) $ret[] = array('family' => $m['cat'], 'key' => $m['k'], 'value' => $m['v'], 'sharing' => intval($m['sharing'])); } } return $ret; } function decode_item_meta($meta) { $ret = array(); if(is_array($meta) && $meta) { foreach($meta as $m) { $ret[] = array('cat' => escape_tags($m['family']),'k' => escape_tags($m['key']),'v' => $m['value'],'sharing' => $m['sharing']); } } return $ret; } /** * @brief * * @param int $t * @return string */ function termtype($t) { $types = array('unknown','hashtag','mention','category','private_category','file','search','thing','bookmark', 'hierarchy', 'communitytag', 'forum'); return(($types[$t]) ? $types[$t] : 'unknown'); } /** * @brief * * @param array $t * @return array|string empty string or array containing associative arrays with * * \e string \b term * * \e string \b url * * \e int \b type */ function decode_tags($t) { if($t) { $ret = array(); foreach($t as $x) { $tag = array(); $tag['term'] = htmlspecialchars($x['tag'], ENT_COMPAT, 'UTF-8', false); $tag['url'] = htmlspecialchars($x['url'], ENT_COMPAT, 'UTF-8', false); switch($x['type']) { case 'hashtag': $tag['ttype'] = TERM_HASHTAG; break; case 'mention': $tag['ttype'] = TERM_MENTION; break; case 'category': $tag['ttype'] = TERM_CATEGORY; break; case 'private_category': $tag['ttype'] = TERM_PCATEGORY; break; case 'file': $tag['ttype'] = TERM_FILE; break; case 'search': $tag['ttype'] = TERM_SEARCH; break; case 'thing': $tag['ttype'] = TERM_THING; break; case 'bookmark': $tag['ttype'] = TERM_BOOKMARK; break; case 'communitytag': $tag['ttype'] = TERM_COMMUNITYTAG; break; case 'forum': $tag['ttype'] = TERM_FORUM; break; default: case 'unknown': $tag['ttype'] = TERM_UNKNOWN; break; } $ret[] = $tag; } return $ret; } return ''; } /** * @brief Santise a potentially complex array. * * @param array $arr * @return array|string */ function activity_sanitise($arr) { if($arr) { if(is_array($arr)) { $ret = array(); foreach($arr as $k => $x) { if(is_array($x)) $ret[$k] = activity_sanitise($x); else $ret[$k] = htmlspecialchars($x, ENT_COMPAT, 'UTF-8', false); } return $ret; } else { return htmlspecialchars($arr, ENT_COMPAT, 'UTF-8', false); } } return ''; } /** * @brief Sanitise a simple linear array. * * @param array $arr * @return array|string */ function array_sanitise($arr) { if($arr) { $ret = array(); foreach($arr as $x) { $ret[] = htmlspecialchars($x, ENT_COMPAT,'UTF-8',false); } return $ret; } return ''; } function encode_item_flags($item) { // most of item_flags and item_restrict are local settings which don't apply when transmitted. // We may need those for the case of syncing other hub locations which you are attached to. $ret = array(); if(intval($item['item_deleted'])) $ret[] = 'deleted'; if(intval($item['item_hidden'])) $ret[] = 'hidden'; if(intval($item['item_notshown'])) $ret[] = 'notshown'; if(intval($item['item_thread_top'])) $ret[] = 'thread_parent'; if(intval($item['item_nsfw'])) $ret[] = 'nsfw'; if(intval($item['item_consensus'])) $ret[] = 'consensus'; if(intval($item['item_obscured'])) $ret[] = 'obscured'; if(intval($item['item_private'])) $ret[] = 'private'; return $ret; } function encode_mail($item,$extended = false) { $x = []; $x['type'] = 'mail'; $x['encoding'] = 'zot'; if(array_key_exists('mail_obscured',$item) && intval($item['mail_obscured'])) { if($item['title']) $item['title'] = base64url_decode(str_rot47($item['title'])); if($item['body']) $item['body'] = base64url_decode(str_rot47($item['body'])); } $x['message_id'] = $item['mid']; $x['message_parent'] = $item['parent_mid']; $x['created'] = $item['created']; $x['expires'] = $item['expires']; $x['title'] = $item['title']; $x['body'] = $item['body']; $x['from'] = encode_item_xchan($item['from']); $x['to'] = encode_item_xchan($item['to']); $x['raw'] = $item['mail_raw']; $x['mimetype'] = $item['mail_mimetype']; if($item['attach']) $x['attach'] = json_decode($item['attach'],true); $x['flags'] = array(); if(intval($item['mail_recalled'])) { $x['flags'][] = 'recalled'; $x['title'] = ''; $x['body'] = ''; } if($extended) { $x['conv_guid'] = $item['conv_guid']; if(intval($item['mail_deleted'])) $x['flags'][] = 'deleted'; if(intval($item['mail_replied'])) $x['flags'][] = 'replied'; if(intval($item['mail_isreply'])) $x['flags'][] = 'isreply'; if(intval($item['mail_seen'])) $x['flags'][] = 'seen'; } return $x; } function get_mail_elements($x) { $arr = array(); if(intval($x['raw'])) { $arr['mail_raw'] = intval($x['raw']); $arr['body'] = $x['body']; } else { $arr['body'] = (($x['body']) ? htmlspecialchars($x['body'], ENT_COMPAT,'UTF-8',false) : ''); $maxlen = get_max_import_size(); if($maxlen && mb_strlen($arr['body']) > $maxlen) { $arr['body'] = mb_substr($arr['body'],0,$maxlen,'UTF-8'); logger('message length exceeds max_import_size: truncated'); } } $arr['title'] = (($x['title'])? htmlspecialchars($x['title'],ENT_COMPAT,'UTF-8',false) : ''); $arr['mail_mimetype'] = (($x['mimetype']) ? htmlspecialchars($x['mimetype'],ENT_COMPAT,'UTF-8',false) : 'text/bbcode'); $arr['conv_guid'] = (($x['conv_guid'])? htmlspecialchars($x['conv_guid'],ENT_COMPAT,'UTF-8',false) : ''); $arr['created'] = datetime_convert('UTC','UTC',$x['created']); if((! array_key_exists('expires',$x)) || ($x['expires'] <= NULL_DATE)) $arr['expires'] = NULL_DATE; else $arr['expires'] = datetime_convert('UTC','UTC',$x['expires']); $arr['mail_flags'] = 0; if($x['flags'] && is_array($x['flags'])) { if(in_array('recalled',$x['flags'])) { $arr['mail_recalled'] = 1; } if(in_array('replied',$x['flags'])) { $arr['mail_replied'] = 1; } if(in_array('isreply',$x['flags'])) { $arr['mail_isreply'] = 1; } if(in_array('seen',$x['flags'])) { $arr['mail_seen'] = 1; } if(in_array('deleted',$x['flags'])) { $arr['mail_deleted'] = 1; } } $key = get_config('system','pubkey'); $arr['mail_obscured'] = 1; if($arr['body']) { $arr['body'] = str_rot47(base64url_encode($arr['body'])); } if($arr['title']) { $arr['title'] = str_rot47(base64url_encode($arr['title'])); } if($arr['created'] > datetime_convert()) $arr['created'] = datetime_convert(); $arr['mid'] = (($x['message_id']) ? htmlspecialchars($x['message_id'], ENT_COMPAT,'UTF-8',false) : ''); $arr['parent_mid'] = (($x['message_parent']) ? htmlspecialchars($x['message_parent'], ENT_COMPAT,'UTF-8',false) : ''); if($x['attach']) $arr['attach'] = activity_sanitise($x['attach']); if(($xchan_hash = import_author_xchan($x['from'])) !== false) $arr['from_xchan'] = $xchan_hash; else return array(); if(($xchan_hash = import_author_xchan($x['to'])) !== false) $arr['to_xchan'] = $xchan_hash; else return array(); return $arr; } function get_profile_elements($x) { $arr = array(); if(($xchan_hash = import_author_xchan($x['from'])) !== false) $arr['xprof_hash'] = $xchan_hash; else return array(); $arr['desc'] = (($x['title']) ? htmlspecialchars($x['title'],ENT_COMPAT,'UTF-8',false) : ''); $arr['dob'] = datetime_convert('UTC','UTC',$x['birthday'],'Y-m-d'); $arr['age'] = (($x['age']) ? intval($x['age']) : 0); $arr['gender'] = (($x['gender']) ? htmlspecialchars($x['gender'], ENT_COMPAT,'UTF-8',false) : ''); $arr['marital'] = (($x['marital']) ? htmlspecialchars($x['marital'], ENT_COMPAT,'UTF-8',false) : ''); $arr['sexual'] = (($x['sexual']) ? htmlspecialchars($x['sexual'], ENT_COMPAT,'UTF-8',false) : ''); $arr['locale'] = (($x['locale']) ? htmlspecialchars($x['locale'], ENT_COMPAT,'UTF-8',false) : ''); $arr['region'] = (($x['region']) ? htmlspecialchars($x['region'], ENT_COMPAT,'UTF-8',false) : ''); $arr['postcode'] = (($x['postcode']) ? htmlspecialchars($x['postcode'], ENT_COMPAT,'UTF-8',false) : ''); $arr['country'] = (($x['country']) ? htmlspecialchars($x['country'], ENT_COMPAT,'UTF-8',false) : ''); $arr['keywords'] = (($x['keywords'] && is_array($x['keywords'])) ? array_sanitise($x['keywords']) : array()); return $arr; } /** * @brief Signs an item body. * * @param[in,out] array $item */ function item_sign(&$item) { if(array_key_exists('sig',$item) && $item['sig']) return; $r = q("select channel_prvkey from channel where channel_id = %d and channel_hash = '%s' ", intval($item['uid']), dbesc($item['author_xchan']) ); if(! $r) return; $item['sig'] = base64url_encode(rsa_sign($item['body'], $r[0]['channel_prvkey'])); $item['item_verified'] = 1; } /** * @brief Stores an item type record. * * @param array $arr * @param boolean $allow_exec (optional) default false * @param boolean $deliver (optional) default true * * @return array * * \e boolean \b success * * \e int \b item_id */ function item_store($arr, $allow_exec = false, $deliver = true) { $d = [ 'item' => $arr, 'allow_exec' => $allow_exec ]; /** * @hooks item_store * Called when item_store() stores a record of type item. * * \e array \b item * * \e boolean \b allow_exec */ call_hooks('item_store', $d); $arr = $d['item']; $allow_exec = $d['allow_exec']; $ret = array('success' => false, 'item_id' => 0); if(array_key_exists('cancel',$arr) && $arr['cancel']) { logger('cancelled by plugin'); return $ret; } if(! $arr['uid']) { logger('item_store: no uid'); $ret['message'] = 'No uid.'; return $ret; } //$uplinked_comment = false; // If a page layout is provided, ensure it exists and belongs to us. if(array_key_exists('layout_mid',$arr) && $arr['layout_mid']) { $l = q("select item_type from item where mid = '%s' and uid = %d limit 1", dbesc($arr['layout_mid']), intval($arr['uid']) ); if((! $l) || ($l[0]['item_type'] != ITEM_TYPE_PDL)) unset($arr['layout_mid']); } // Don't let anybody set these, either intentionally or accidentally if(array_key_exists('id',$arr)) unset($arr['id']); if(array_key_exists('parent',$arr)) unset($arr['parent']); $arr['mimetype'] = ((x($arr,'mimetype')) ? notags(trim($arr['mimetype'])) : 'text/bbcode'); if(($arr['mimetype'] == 'application/x-php') && (! $allow_exec)) { logger('item_store: php mimetype but allow_exec is denied.'); $ret['message'] = 'exec denied.'; return $ret; } $arr['title'] = ((array_key_exists('title',$arr) && strlen($arr['title'])) ? trim($arr['title']) : ''); $arr['body'] = ((array_key_exists('body',$arr) && strlen($arr['body'])) ? trim($arr['body']) : ''); $arr['allow_cid'] = ((x($arr,'allow_cid')) ? trim($arr['allow_cid']) : ''); $arr['allow_gid'] = ((x($arr,'allow_gid')) ? trim($arr['allow_gid']) : ''); $arr['deny_cid'] = ((x($arr,'deny_cid')) ? trim($arr['deny_cid']) : ''); $arr['deny_gid'] = ((x($arr,'deny_gid')) ? trim($arr['deny_gid']) : ''); $arr['postopts'] = ((x($arr,'postopts')) ? trim($arr['postopts']) : ''); $arr['route'] = ((x($arr,'route')) ? trim($arr['route']) : ''); $arr['item_private'] = ((x($arr,'item_private')) ? intval($arr['item_private']) : 0 ); $arr['item_wall'] = ((x($arr,'item_wall')) ? intval($arr['item_wall']) : 0 ); $arr['item_type'] = ((x($arr,'item_type')) ? intval($arr['item_type']) : 0 ); // obsolete, but needed so as not to throw not-null constraints on some database driveres $arr['item_flags'] = ((x($arr,'item_flags')) ? intval($arr['item_flags']) : 0 ); $arr['lang'] = detect_language($arr['body']); // apply the input filter here $arr['body'] = trim(z_input_filter($arr['body'],$arr['mimetype'],$allow_exec)); item_sign($arr); if(! array_key_exists('sig',$arr)) $arr['sig'] = ''; $allowed_languages = get_pconfig($arr['uid'],'system','allowed_languages'); if((is_array($allowed_languages)) && ($arr['lang']) && (! array_key_exists($arr['lang'],$allowed_languages))) { $translate = [ 'item' => $arr, 'from' => $arr['lang'], 'to' => $allowed_languages, 'translated' => false ]; /** * @hooks item_translate * Called from item_store and item_store_update after the post language has been autodetected. * * \e array \b item * * \e string \b from * * \e string \b to * * \e boolean \b translated */ call_hooks('item_translate', $translate); if((! $translate['translated']) && (intval(get_pconfig($arr['uid'],'system','reject_disallowed_languages')))) { logger('language ' . $arr['lang'] . ' not accepted for uid ' . $arr['uid']); $ret['message'] = 'language not accepted'; return $ret; } $arr = $translate['item']; } if((x($arr,'obj')) && is_array($arr['obj'])) { activity_sanitise($arr['obj']); $arr['obj'] = json_encode($arr['obj']); } if((x($arr,'target')) && is_array($arr['target'])) { activity_sanitise($arr['target']); $arr['target'] = json_encode($arr['target']); } if((x($arr,'attach')) && is_array($arr['attach'])) { activity_sanitise($arr['attach']); $arr['attach'] = json_encode($arr['attach']); } $arr['aid'] = ((x($arr,'aid')) ? intval($arr['aid']) : 0); $arr['mid'] = ((x($arr,'mid')) ? notags(trim($arr['mid'])) : random_string()); $arr['revision'] = ((x($arr,'revision') && intval($arr['revision']) > 0) ? intval($arr['revision']) : 0); $arr['author_xchan'] = ((x($arr,'author_xchan')) ? notags(trim($arr['author_xchan'])) : ''); $arr['owner_xchan'] = ((x($arr,'owner_xchan')) ? notags(trim($arr['owner_xchan'])) : ''); $arr['created'] = ((x($arr,'created') !== false) ? datetime_convert('UTC','UTC',$arr['created']) : datetime_convert()); $arr['edited'] = ((x($arr,'edited') !== false) ? datetime_convert('UTC','UTC',$arr['edited']) : datetime_convert()); $arr['expires'] = ((x($arr,'expires') !== false) ? datetime_convert('UTC','UTC',$arr['expires']) : NULL_DATE); $arr['commented'] = ((x($arr,'commented') !== false) ? datetime_convert('UTC','UTC',$arr['commented']) : datetime_convert()); $arr['comments_closed'] = ((x($arr,'comments_closed') !== false) ? datetime_convert('UTC','UTC',$arr['comments_closed']) : NULL_DATE); $arr['html'] = ((array_key_exists('html',$arr)) ? $arr['html'] : ''); if($deliver) { $arr['received'] = datetime_convert(); $arr['changed'] = datetime_convert(); } else { // When deliver flag is false, we are *probably* performing an import or bulk migration. // If one updates the changed timestamp it will be made available to zotfeed and delivery // will still take place through backdoor methods. Since these fields are rarely used // otherwise, just preserve the original timestamp. $arr['received'] = ((x($arr,'received') !== false) ? datetime_convert('UTC','UTC',$arr['received']) : datetime_convert()); $arr['changed'] = ((x($arr,'changed') !== false) ? datetime_convert('UTC','UTC',$arr['changed']) : datetime_convert()); } $arr['location'] = ((x($arr,'location')) ? notags(trim($arr['location'])) : ''); $arr['coord'] = ((x($arr,'coord')) ? notags(trim($arr['coord'])) : ''); $arr['parent_mid'] = ((x($arr,'parent_mid')) ? notags(trim($arr['parent_mid'])) : ''); $arr['thr_parent'] = ((x($arr,'thr_parent')) ? notags(trim($arr['thr_parent'])) : $arr['parent_mid']); $arr['verb'] = ((x($arr,'verb')) ? notags(trim($arr['verb'])) : ACTIVITY_POST); $arr['obj_type'] = ((x($arr,'obj_type')) ? notags(trim($arr['obj_type'])) : ACTIVITY_OBJ_NOTE); $arr['obj'] = ((x($arr,'obj')) ? trim($arr['obj']) : ''); $arr['tgt_type'] = ((x($arr,'tgt_type')) ? notags(trim($arr['tgt_type'])) : ''); $arr['target'] = ((x($arr,'target')) ? trim($arr['target']) : ''); $arr['plink'] = ((x($arr,'plink')) ? notags(trim($arr['plink'])) : ''); $arr['attach'] = ((x($arr,'attach')) ? notags(trim($arr['attach'])) : ''); $arr['app'] = ((x($arr,'app')) ? notags(trim($arr['app'])) : ''); $arr['public_policy'] = ((x($arr,'public_policy')) ? notags(trim($arr['public_policy'])) : '' ); $arr['comment_policy'] = ((x($arr,'comment_policy')) ? notags(trim($arr['comment_policy'])) : 'contacts' ); if(! array_key_exists('item_unseen',$arr)) $arr['item_unseen'] = 1; if((! array_key_exists('item_nocomment',$arr)) && ($arr['comment_policy'] == 'none')) $arr['item_nocomment'] = 1; // handle time travelers // Allow a bit of fudge in case somebody just has a slightly slow/fast clock $d1 = new DateTime('now +10 minutes', new DateTimeZone('UTC')); $d2 = new DateTime($arr['created'] . '+00:00'); if($d2 > $d1) $arr['item_delayed'] = 1; $arr['llink'] = z_root() . '/display/' . gen_link_id($arr['mid']); if(! $arr['plink']) $arr['plink'] = $arr['llink']; if($arr['parent_mid'] === $arr['mid']) { $parent_id = 0; $parent_deleted = 0; $allow_cid = $arr['allow_cid']; $allow_gid = $arr['allow_gid']; $deny_cid = $arr['deny_cid']; $deny_gid = $arr['deny_gid']; $public_policy = $arr['public_policy']; $comments_closed = $arr['comments_closed']; $arr['item_thread_top'] = 1; } else { // find the parent and snarf the item id and ACL's // and anything else we need to inherit $r = q("SELECT * FROM item WHERE mid = '%s' AND uid = %d ORDER BY id ASC LIMIT 1", dbesc($arr['parent_mid']), intval($arr['uid']) ); if($r) { // in case item_store was killed before the parent's parent attribute got set, // set it now. This happens with some regularity on Dreamhost. This will keep // us from getting notifications for threads that exist but which we can't see. if(($r[0]['mid'] === $r[0]['parent_mid']) && (! intval($r[0]['parent']))) { q("update item set parent = id where id = %d", intval($r[0]['id']) ); } if(comments_are_now_closed($r[0])) { logger('item_store: comments closed'); $ret['message'] = 'Comments closed.'; return $ret; } if(($arr['obj_type'] == ACTIVITY_OBJ_NOTE) && (! $arr['obj'])) $arr['obj_type'] = ACTIVITY_OBJ_COMMENT; // is the new message multi-level threaded? // even though we don't support it now, preserve the info // and re-attach to the conversation parent. if($r[0]['mid'] != $r[0]['parent_mid']) { $arr['parent_mid'] = $r[0]['parent_mid']; $z = q("SELECT * FROM item WHERE mid = '%s' AND parent_mid = '%s' AND uid = %d ORDER BY id ASC LIMIT 1", dbesc($r[0]['parent_mid']), dbesc($r[0]['parent_mid']), intval($arr['uid']) ); if($z && count($z)) $r = $z; } $parent_id = $r[0]['id']; $parent_deleted = $r[0]['item_deleted']; $allow_cid = $r[0]['allow_cid']; $allow_gid = $r[0]['allow_gid']; $deny_cid = $r[0]['deny_cid']; $deny_gid = $r[0]['deny_gid']; $public_policy = $r[0]['public_policy']; $comments_closed = $r[0]['comments_closed']; if(intval($r[0]['item_wall'])) $arr['item_wall'] = 1; // An uplinked comment might arrive with a downstream owner. // Fix it. if($r[0]['owner_xchan'] !== $arr['owner_xchan']) { $arr['owner_xchan'] = $r[0]['owner_xchan']; // $uplinked_comment = true; } // if the parent is private, force privacy for the entire conversation if($r[0]['item_private']) $arr['item_private'] = $r[0]['item_private']; // Edge case. We host a public forum that was originally posted to privately. // The original author commented, but as this is a comment, the permissions // weren't fixed up so it will still show the comment as private unless we fix it here. if(intval($r[0]['item_uplink']) && (! $r[0]['item_private'])) $arr['item_private'] = 0; } else { logger('item_store: item parent was not found - ignoring item'); $ret['message'] = 'parent not found.'; return $ret; } } if($parent_deleted) $arr['item_deleted'] = 1; $r = q("SELECT id FROM item WHERE mid = '%s' AND uid = %d and revision = %d LIMIT 1", dbesc($arr['mid']), intval($arr['uid']), intval($arr['revision']) ); if($r) { logger('duplicate item ignored. ' . print_r($arr,true)); $ret['message'] = 'duplicate post.'; return $ret; } /** * @hooks item_store * Called when item_store() stores a record of type item. */ call_hooks('item_store', $arr); /** * @hooks post_remote * Called when an activity arrives from another site. * This hook remains for backward compatibility. */ call_hooks('post_remote', $arr); if(x($arr, 'cancel')) { logger('Post cancelled by plugin.'); $ret['message'] = 'cancelled.'; return $ret; } // pull out all the taxonomy stuff for separate storage $terms = null; if(array_key_exists('term',$arr)) { $terms = $arr['term']; unset($arr['term']); } $meta = null; if(array_key_exists('iconfig',$arr)) { $meta = $arr['iconfig']; unset($arr['iconfig']); } if(strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid) || strlen($public_policy)) $private = 1; else $private = $arr['item_private']; $arr['parent'] = $parent_id; $arr['allow_cid'] = $allow_cid; $arr['allow_gid'] = $allow_gid; $arr['deny_cid'] = $deny_cid; $arr['deny_gid'] = $deny_gid; $arr['public_policy'] = $public_policy; $arr['item_private'] = $private; $arr['comments_closed'] = $comments_closed; logger('item_store: ' . print_r($arr,true), LOGGER_DATA); create_table_from_array('item',$arr); // find the item we just created $r = q("SELECT * FROM item WHERE mid = '%s' AND uid = %d and revision = %d ORDER BY id ASC ", $arr['mid'], // already dbesc'd intval($arr['uid']), intval($arr['revision']) ); if($r) { // This will gives us a fresh copy of what's now in the DB and undo the db escaping, // which really messes up the notifications $current_post = $r[0]['id']; $arr = $r[0]; logger('item_store: created item ' . $current_post, LOGGER_DEBUG); } else { logger('item_store: could not locate stored item'); $ret['message'] = 'unable to retrieve.'; return $ret; } if(count($r) > 1) { logger('item_store: duplicated post occurred. Removing duplicates.'); q("DELETE FROM item WHERE mid = '%s' AND uid = %d AND id != %d ", $arr['mid'], intval($arr['uid']), intval($current_post) ); } $arr['id'] = $current_post; if(! intval($r[0]['parent'])) { $x = q("update item set parent = id where id = %d", intval($r[0]['id']) ); $arr['parent'] = $r[0]['id']; } // Store taxonomy if(($terms) && (is_array($terms))) { foreach($terms as $t) { q("insert into term (uid,oid,otype,ttype,term,url) values(%d,%d,%d,%d,'%s','%s') ", intval($arr['uid']), intval($current_post), intval(TERM_OBJ_POST), intval($t['ttype']), dbesc($t['term']), dbesc($t['url']) ); } $arr['term'] = $terms; } if($meta) { foreach($meta as $m) { set_iconfig($current_post,$m['cat'],$m['k'],$m['v'],$m['sharing']); } $arr['iconfig'] = $meta; } $ret['item'] = $arr; /** * @hooks post_remote_end * Called after processing a remote post. */ call_hooks('post_remote_end', $arr); item_update_parent_commented($arr); // If _creating_ a deleted item, don't propagate it further or send out notifications. // We need to store the item details just in case the delete came in before the original post, // so that we have an item in the DB that's marked deleted and won't store a fresh post // that isn't aware that we were already told to delete it. if(($deliver) && (! intval($arr['item_deleted']))) { send_status_notifications($current_post,$arr); tag_deliver($arr['uid'],$current_post); } $ret['success'] = true; $ret['item_id'] = $current_post; return $ret; } /** * @brief Update a stored item. * * @param array $arr an item * @param boolean $allow_exec (optional) default false * @param boolean $deliver (optional) default true * @return array */ function item_store_update($arr, $allow_exec = false, $deliver = true) { $d = [ 'item' => $arr, 'allow_exec' => $allow_exec ]; /** * @hooks item_store_update * Called when item_store_update() is called to update a stored item. It * overwrites the function's parameters $arr and $allow_exec. * * \e array \b item * * \e boolean \b allow_exec */ call_hooks('item_store_update', $d); $arr = $d['item']; $allow_exec = $d['allow_exec']; $ret = array('success' => false, 'item_id' => 0); if(array_key_exists('cancel',$arr) && $arr['cancel']) { logger('cancelled by plugin'); return $ret; } if(! intval($arr['uid'])) { logger('no uid'); $ret['message'] = 'no uid.'; return $ret; } if(! intval($arr['id'])) { logger('no id'); $ret['message'] = 'no id.'; return $ret; } $orig_post_id = $arr['id']; $uid = $arr['uid']; $orig = q("select * from item where id = %d and uid = %d limit 1", intval($orig_post_id), intval($uid) ); if(! $orig) { logger('Original post not found: ' . $orig_post_id); $ret['message'] = 'no original'; return $ret; } // override the unseen flag with the original $arr['item_unseen'] = $orig[0]['item_unseen']; if(array_key_exists('edit',$arr)) unset($arr['edit']); $arr['mimetype'] = ((x($arr,'mimetype')) ? notags(trim($arr['mimetype'])) : 'text/bbcode'); if(($arr['mimetype'] == 'application/x-php') && (! $allow_exec)) { logger('item_store: php mimetype but allow_exec is denied.'); $ret['message'] = 'exec denied.'; return $ret; } $arr['lang'] = detect_language($arr['body']); // apply the input filter here $arr['body'] = trim(z_input_filter($arr['body'],$arr['mimetype'],$allow_exec)); item_sign($arr); $allowed_languages = get_pconfig($arr['uid'],'system','allowed_languages'); if((is_array($allowed_languages)) && ($arr['lang']) && (! array_key_exists($arr['lang'],$allowed_languages))) { $translate = [ 'item' => $arr, 'from' => $arr['lang'], 'to' => $allowed_languages, 'translated' => false ]; /** * @hooks item_translate * Called from item_store() and item_store_update() after the post language has been autodetected. * * \e array \b item - returned value * * \e string \b from * * \e string \b to * * \e boolean \b translated - default false, set true if hook translated it and provide it in item */ call_hooks('item_translate', $translate); if((! $translate['translated']) && (intval(get_pconfig($arr['uid'],'system','reject_disallowed_languages')))) { logger('item_store: language ' . $arr['lang'] . ' not accepted for uid ' . $arr['uid']); $ret['message'] = 'language not accepted'; return $ret; } $arr = $translate['item']; } if((array_key_exists('obj',$arr)) && is_array($arr['obj'])) { activity_sanitise($arr['obj']); $arr['obj'] = json_encode($arr['obj']); } if((array_key_exists('target',$arr)) && is_array($arr['target'])) { activity_sanitise($arr['target']); $arr['target'] = json_encode($arr['target']); } if((array_key_exists('attach',$arr)) && is_array($arr['attach'])) { activity_sanitise($arr['attach']); $arr['attach'] = json_encode($arr['attach']); } unset($arr['id']); unset($arr['uid']); unset($arr['aid']); unset($arr['mid']); unset($arr['parent']); unset($arr['parent_mid']); unset($arr['created']); unset($arr['author_xchan']); unset($arr['owner_xchan']); unset($arr['source_xchan']); unset($arr['thr_parent']); unset($arr['llink']); $arr['edited'] = ((x($arr,'edited') !== false) ? datetime_convert('UTC','UTC',$arr['edited']) : datetime_convert()); $arr['expires'] = ((x($arr,'expires') !== false) ? datetime_convert('UTC','UTC',$arr['expires']) : $orig[0]['expires']); $arr['revision'] = ((x($arr,'revision') && $arr['revision'] > 0) ? intval($arr['revision']) : 0); if(array_key_exists('comments_closed',$arr) && $arr['comments_closed'] > NULL_DATE) $arr['comments_closed'] = datetime_convert('UTC','UTC',$arr['comments_closed']); else $arr['comments_closed'] = $orig[0]['comments_closed']; $arr['commented'] = $orig[0]['commented']; $arr['received'] = $orig[0]['received']; $arr['changed'] = $orig[0]['changed']; $arr['route'] = ((array_key_exists('route',$arr)) ? trim($arr['route']) : $orig[0]['route']); $arr['location'] = ((x($arr,'location')) ? notags(trim($arr['location'])) : $orig[0]['location']); $arr['coord'] = ((x($arr,'coord')) ? notags(trim($arr['coord'])) : $orig[0]['coord']); $arr['verb'] = ((x($arr,'verb')) ? notags(trim($arr['verb'])) : $orig[0]['verb']); $arr['obj_type'] = ((x($arr,'obj_type')) ? notags(trim($arr['obj_type'])) : $orig[0]['obj_type']); $arr['obj'] = ((x($arr,'obj')) ? trim($arr['obj']) : $orig[0]['obj']); $arr['tgt_type'] = ((x($arr,'tgt_type')) ? notags(trim($arr['tgt_type'])) : $orig[0]['tgt_type']); $arr['target'] = ((x($arr,'target')) ? trim($arr['target']) : $orig[0]['target']); $arr['plink'] = ((x($arr,'plink')) ? notags(trim($arr['plink'])) : $orig[0]['plink']); $arr['allow_cid'] = ((array_key_exists('allow_cid',$arr)) ? trim($arr['allow_cid']) : $orig[0]['allow_cid']); $arr['allow_gid'] = ((array_key_exists('allow_gid',$arr)) ? trim($arr['allow_gid']) : $orig[0]['allow_gid']); $arr['deny_cid'] = ((array_key_exists('deny_cid',$arr)) ? trim($arr['deny_cid']) : $orig[0]['deny_cid']); $arr['deny_gid'] = ((array_key_exists('deny_gid',$arr)) ? trim($arr['deny_gid']) : $orig[0]['deny_gid']); $arr['item_private'] = ((array_key_exists('item_private',$arr)) ? intval($arr['item_private']) : $orig[0]['item_private']); $arr['title'] = ((array_key_exists('title',$arr) && strlen($arr['title'])) ? trim($arr['title']) : ''); $arr['body'] = ((array_key_exists('body',$arr) && strlen($arr['body'])) ? trim($arr['body']) : ''); $arr['html'] = ((array_key_exists('html',$arr) && strlen($arr['html'])) ? trim($arr['html']) : ''); $arr['attach'] = ((array_key_exists('attach',$arr)) ? notags(trim($arr['attach'])) : $orig[0]['attach']); $arr['app'] = ((array_key_exists('app',$arr)) ? notags(trim($arr['app'])) : $orig[0]['app']); $arr['item_origin'] = ((array_key_exists('item_origin',$arr)) ? intval($arr['item_origin']) : $orig[0]['item_origin'] ); $arr['item_unseen'] = ((array_key_exists('item_unseen',$arr)) ? intval($arr['item_unseen']) : $orig[0]['item_unseen'] ); $arr['item_starred'] = ((array_key_exists('item_starred',$arr)) ? intval($arr['item_starred']) : $orig[0]['item_starred'] ); $arr['item_uplink'] = ((array_key_exists('item_uplink',$arr)) ? intval($arr['item_uplink']) : $orig[0]['item_uplink'] ); $arr['item_consensus'] = ((array_key_exists('item_consensus',$arr)) ? intval($arr['item_consensus']) : $orig[0]['item_consensus'] ); $arr['item_wall'] = ((array_key_exists('item_wall',$arr)) ? intval($arr['item_wall']) : $orig[0]['item_wall'] ); $arr['item_thread_top'] = ((array_key_exists('item_thread_top',$arr)) ? intval($arr['item_thread_top']) : $orig[0]['item_thread_top'] ); $arr['item_notshown'] = ((array_key_exists('item_notshown',$arr)) ? intval($arr['item_notshown']) : $orig[0]['item_notshown'] ); $arr['item_nsfw'] = ((array_key_exists('item_nsfw',$arr)) ? intval($arr['item_nsfw']) : $orig[0]['item_nsfw'] ); $arr['item_relay'] = ((array_key_exists('item_relay',$arr)) ? intval($arr['item_relay']) : $orig[0]['item_relay'] ); $arr['item_mentionsme'] = ((array_key_exists('item_mentionsme',$arr)) ? intval($arr['item_mentionsme']) : $orig[0]['item_mentionsme'] ); $arr['item_nocomment'] = ((array_key_exists('item_nocomment',$arr)) ? intval($arr['item_nocomment']) : $orig[0]['item_nocomment'] ); $arr['item_obscured'] = ((array_key_exists('item_obscured',$arr)) ? intval($arr['item_obscured']) : $orig[0]['item_obscured'] ); $arr['item_verified'] = ((array_key_exists('item_verified',$arr)) ? intval($arr['item_verified']) : $orig[0]['item_verified'] ); $arr['item_retained'] = ((array_key_exists('item_retained',$arr)) ? intval($arr['item_retained']) : $orig[0]['item_retained'] ); $arr['item_rss'] = ((array_key_exists('item_rss',$arr)) ? intval($arr['item_rss']) : $orig[0]['item_rss'] ); $arr['item_deleted'] = ((array_key_exists('item_deleted',$arr)) ? intval($arr['item_deleted']) : $orig[0]['item_deleted'] ); $arr['item_type'] = ((array_key_exists('item_type',$arr)) ? intval($arr['item_type']) : $orig[0]['item_type'] ); $arr['item_hidden'] = ((array_key_exists('item_hidden',$arr)) ? intval($arr['item_hidden']) : $orig[0]['item_hidden'] ); $arr['item_unpublished'] = ((array_key_exists('item_unpublished',$arr)) ? intval($arr['item_unpublished']) : $orig[0]['item_unpublished'] ); $arr['item_delayed'] = ((array_key_exists('item_delayed',$arr)) ? intval($arr['item_delayed']) : $orig[0]['item_delayed'] ); $arr['item_pending_remove'] = ((array_key_exists('item_pending_remove',$arr)) ? intval($arr['item_pending_remove']) : $orig[0]['item_pending_remove'] ); $arr['item_blocked'] = ((array_key_exists('item_blocked',$arr)) ? intval($arr['item_blocked']) : $orig[0]['item_blocked'] ); $arr['sig'] = ((x($arr,'sig')) ? $arr['sig'] : ''); $arr['layout_mid'] = ((array_key_exists('layout_mid',$arr)) ? dbesc($arr['layout_mid']) : $orig[0]['layout_mid'] ); $arr['public_policy'] = ((x($arr,'public_policy')) ? notags(trim($arr['public_policy'])) : $orig[0]['public_policy'] ); $arr['comment_policy'] = ((x($arr,'comment_policy')) ? notags(trim($arr['comment_policy'])) : $orig[0]['comment_policy'] ); /** * @hooks post_remote_update * Called when processing a remote post that involved an edit or update. */ call_hooks('post_remote_update', $arr); if(x($arr, 'cancel')) { logger('Post cancelled by plugin.'); $ret['message'] = 'cancelled.'; return $ret; } // pull out all the taxonomy stuff for separate storage $terms = null; if(array_key_exists('term',$arr)) { $terms = $arr['term']; unset($arr['term']); } $meta = null; if(array_key_exists('iconfig',$arr)) { $meta = $arr['iconfig']; unset($arr['iconfig']); } if(! dbesc_array($arr)) { $ret['message'] = 'DB array malformed'; return $ret; } logger('item_store_update: ' . print_r($arr,true), LOGGER_DATA); $str = ''; foreach($arr as $k => $v) { if($str) $str .= ","; $str .= " " . TQUOT . $k . TQUOT . " = '" . $v . "' "; } $r = dbq("update item set " . $str . " where id = " . $orig_post_id ); if($r) logger('Updated item ' . $orig_post_id, LOGGER_DEBUG); else { logger('Could not update item'); $ret['message'] = 'DB update failed.'; return $ret; } // fetch an unescaped complete copy of the stored item $r = q("select * from item where id = %d", intval($orig_post_id) ); if($r) $arr = $r[0]; $r = q("delete from term where oid = %d and otype = %d", intval($orig_post_id), intval(TERM_OBJ_POST) ); if(is_array($terms)) { foreach($terms as $t) { q("insert into term (uid,oid,otype,ttype,term,url) values(%d,%d,%d,%d,'%s','%s') ", intval($uid), intval($orig_post_id), intval(TERM_OBJ_POST), intval($t['ttype']), dbesc($t['term']), dbesc($t['url']) ); } $arr['term'] = $terms; } $r = q("delete from iconfig where iid = %d", intval($orig_post_id) ); if($meta) { foreach($meta as $m) { set_iconfig($orig_post_id,$m['cat'],$m['k'],$m['v'],$m['sharing']); } $arr['iconfig'] = $meta; } $ret['item'] = $arr; /** * @hooks post_remote_update_end * Called after processing a remote post that involved an edit or update. */ call_hooks('post_remote_update_end', $arr); if($deliver) { send_status_notifications($orig_post_id,$arr); tag_deliver($uid,$orig_post_id); } $ret['success'] = true; $ret['item_id'] = $orig_post_id; return $ret; } function item_update_parent_commented($item) { $update_parent = true; // update the commented timestamp on the parent // - unless this is a moderated comment or a potential clone of an older item // which we don't wish to bring to the surface. As the queue only holds deliveries // for 3 days, it's suspected of being an older cloned item if the creation time //is older than that. if(intval($item['item_blocked']) === ITEM_MODERATED) $update_parent = false; if($item['created'] < datetime_convert('','','now - 4 days')) $update_parent = false; if($update_parent) { $z = q("select max(created) as commented from item where parent_mid = '%s' and uid = %d and item_delayed = 0 ", dbesc($item['parent_mid']), intval($item['uid']) ); q("UPDATE item set commented = '%s', changed = '%s' WHERE id = %d", dbesc(($z) ? $z[0]['commented'] : datetime_convert()), dbesc(datetime_convert()), intval($item['parent']) ); } } function send_status_notifications($post_id,$item) { // only send notifications for comments if($item['mid'] == $item['parent_mid']) return; $notify = false; $unfollowed = false; $parent = 0; if(array_key_exists('verb',$item) && (activity_match($item['verb'], ACTIVITY_LIKE) || activity_match($item['verb'], ACTIVITY_DISLIKE))) { $r = q("select id from item where mid = '%s' and uid = %d limit 1", dbesc($item['thr_parent']), intval($item['uid']) ); $thr_parent_id = $r[0]['id']; } $r = q("select channel_hash from channel where channel_id = %d limit 1", intval($item['uid']) ); if(! $r) return; // my own post - no notification needed if($item['author_xchan'] === $r[0]['channel_hash']) return; // I'm the owner - notify me if($item['owner_hash'] === $r[0]['channel_hash']) $notify = true; // Was I involved in this conversation? $x = q("select * from item where parent_mid = '%s' and uid = %d", dbesc($item['parent_mid']), intval($item['uid']) ); if($x) { foreach($x as $xx) { if($xx['author_xchan'] === $r[0]['channel_hash']) { $notify = true; // check for an unfollow thread activity - we should probably decode the obj and check the id // but it will be extremely rare for this to be wrong. if(($xx['verb'] === ACTIVITY_UNFOLLOW) && ($xx['obj_type'] === ACTIVITY_OBJ_NOTE || $xx['obj_type'] === ACTIVITY_OBJ_PHOTO) && ($xx['parent'] != $xx['id'])) $unfollowed = true; } if($xx['id'] == $xx['parent']) { $parent = $xx['parent']; } } } if($unfollowed) return; $link = z_root() . '/display/' . gen_link_id($item['mid']); $y = q("select id from notify where link = '%s' and uid = %d limit 1", dbesc($link), intval($item['uid']) ); if($y) $notify = false; if(! $notify) return; Enotify::submit(array( 'type' => NOTIFY_COMMENT, 'from_xchan' => $item['author_xchan'], 'to_xchan' => $r[0]['channel_hash'], 'item' => $item, 'link' => $link, 'verb' => $item['verb'], 'otype' => 'item', 'parent' => $thr_parent_id ? $thr_parent_id : $parent, 'parent_mid' => $thr_parent_id ? $item['thr_parent'] : $item['parent_mid'] )); } function get_item_contact($item,$contacts) { if(! count($contacts) || (! is_array($item))) return false; foreach($contacts as $contact) { if($contact['id'] == $item['contact-id']) { return $contact; break; // NOTREACHED } } return false; } /** * @brief Called when we deliver things that might be tagged in ways that require delivery processing. * * Handles community tagging of posts and also look for mention tags and sets up * a second delivery chain if appropriate. * * @param int $uid * @param int $item_id */ function tag_deliver($uid, $item_id) { $mention = false; /* * Fetch stuff we need - a channel and an item */ $u = q("select * from channel left join xchan on channel_hash = xchan_hash where channel_id = %d limit 1", intval($uid) ); if(! $u) return; $i = q("select * from item where id = %d and uid = %d limit 1", intval($item_id), intval($uid) ); if(! $i) return; $i = fetch_post_tags($i); $item = $i[0]; if(($item['source_xchan']) && intval($item['item_uplink']) && intval($item['item_thread_top']) && ($item['edited'] != $item['created'])) { // this is an update (edit) to a post which was already processed by us and has a second delivery chain // Just start the second delivery chain to deliver the updated post // after resetting ownership and permission bits logger('updating edited tag_deliver post for ' . $u[0]['channel_address']); start_delivery_chain($u[0], $item, $item_id, 0, true); return; } /* * Seems like a good place to plug in a poke notification. */ if (stristr($item['verb'],ACTIVITY_POKE)) { $poke_notify = true; if(($item['obj_type'] == "") || ($item['obj_type'] !== ACTIVITY_OBJ_PERSON) || (! $item['obj'])) $poke_notify = false; $obj = json_decode($item['obj'],true); if($obj) { if($obj['id'] !== $u[0]['channel_hash']) $poke_notify = false; } if(intval($item['item_deleted'])) $poke_notify = false; $verb = urldecode(substr($item['verb'],strpos($item['verb'],'#')+1)); if($poke_notify) { Enotify::submit(array( 'to_xchan' => $u[0]['channel_hash'], 'from_xchan' => $item['author_xchan'], 'type' => NOTIFY_POKE, 'item' => $item, 'link' => $i[0]['llink'], 'verb' => ACTIVITY_POKE, 'activity' => $verb, 'otype' => 'item' )); } } /* * Do community tagging */ if($item['obj_type'] === ACTIVITY_OBJ_TAGTERM) { item_community_tag($u[0],$item); } /* * A "union" is a message which our channel has sourced from another channel. * This sets up a second delivery chain just like forum tags do. * Find out if this is a source-able post. */ $union = check_item_source($uid,$item); if($union) logger('check_item_source returns true'); // This might be a followup (e.g. comment) by the original post author to a tagged forum // If so setup a second delivery chain if( ! intval($item['item_thread_top'])) { $x = q("select * from item where id = parent and parent = %d and uid = %d limit 1", intval($item['parent']), intval($uid) ); if(($x) && intval($x[0]['item_uplink'])) { start_delivery_chain($u[0],$item,$item_id,$x[0]); } } /* * Now we've got those out of the way. Let's see if this is a post that's tagged for re-delivery */ $terms = array_merge(get_terms_oftype($item['term'],TERM_MENTION),get_terms_oftype($item['term'],TERM_FORUM)); if($terms) logger('Post mentions: ' . print_r($terms,true), LOGGER_DATA); $max_forums = get_config('system','max_tagged_forums',2); $matched_forums = 0; $link = normalise_link($u[0]['xchan_url']); if($terms) { foreach($terms as $term) { if(! link_compare($term['url'],$link)) { continue; } $mention = true; logger('Mention found for ' . $u[0]['channel_name']); $r = q("update item set item_mentionsme = 1 where id = %d", intval($item_id) ); // At this point we've determined that the person receiving this post was mentioned in it or it is a union. // Now let's check if this mention was inside a reshare so we don't spam a forum // If it's private we may have to unobscure it momentarily so that we can parse it. $body = preg_replace('/\[share(.*?)\[\/share\]/','',$item['body']); $tagged = false; $plustagged = false; $matches = array(); $pattern = '/[\!@]\!?\[[uz]rl\=' . preg_quote($term['url'],'/') . '\](.*?)\[\/[uz]rl\]/'; if(preg_match($pattern,$body,$matches)) $tagged = true; $pattern = '/\[url\=' . preg_quote($term['url'],'/') . '\]\@(.*?)\[\/url\]/'; if(preg_match($pattern,$body,$matches)) $tagged = true; // standard forum tagging sequence !forumname $forumpattern = '/\!\!?\[[uz]rl\=([^\]]*?)\]((?:.(?!\[[uz]rl\=))*?)\[\/[uz]rl\]/'; $forumpattern2 = '/\[[uz]rl\=([^\]]*?)\]\!((?:.(?!\[[uz]rl\=))*?)\[\/[uz]rl\]/'; $matches = array(); if(preg_match_all($forumpattern,$body,$matches,PREG_SET_ORDER)) { foreach($matches as $match) { $matched_forums ++; if($term['url'] === $match[1] && intval($term['ttype']) === TERM_FORUM) { if($matched_forums <= $max_forums) { $plustagged = true; break; } logger('forum ' . $term['term'] . ' exceeded max_tagged_forums - ignoring'); } } } if(preg_match_all($forumpattern2,$body,$matches,PREG_SET_ORDER)) { foreach($matches as $match) { $matched_forums ++; if($term['url'] === $match[1] && intval($term['ttype']) === TERM_FORUM) { if($matched_forums <= $max_forums) { $plustagged = true; break; } logger('forum ' . $term['term'] . ' exceeded max_tagged_forums - ignoring'); } } } if(! ($tagged || $plustagged)) { logger('Mention was in a reshare or exceeded max_tagged_forums - ignoring'); continue; } $arr = [ 'channel_id' => $uid, 'item' => $item, 'body' => $body ]; /** * @hooks tagged * Called when a delivery is processed which results in you being tagged. * * \e number \b channel_id * * \e array \b item * * \e string \b body */ call_hooks('tagged', $arr); /* * Kill two birds with one stone. As long as we're here, send a mention notification. */ Enotify::submit(array( 'to_xchan' => $u[0]['channel_hash'], 'from_xchan' => $item['author_xchan'], 'type' => NOTIFY_TAGSELF, 'item' => $item, 'link' => $i[0]['llink'], 'verb' => ACTIVITY_TAG, 'otype' => 'item' )); // Just a normal tag? if(! $plustagged) { logger('Not a plus tag', LOGGER_DEBUG); continue; } // plustagged - keep going, next check permissions if(! perm_is_allowed($uid,$item['author_xchan'],'tag_deliver')) { logger('tag_delivery denied for uid ' . $uid . ' and xchan ' . $item['author_xchan']); continue; } if(! $mention) { logger('No mention for ' . $u[0]['channel_name']); continue; } // tgroup delivery - setup a second delivery chain // prevent delivery looping - only proceed // if the message originated elsewhere and is a top-level post if(intval($item['item_wall']) || intval($item['item_origin']) || (! intval($item['item_thread_top'])) || ($item['id'] != $item['parent'])) { logger('Item was local or a comment. rejected.'); continue; } logger('Creating second delivery chain.'); start_delivery_chain($u[0],$item,$item_id,null); } } if($union) { if(intval($item['item_wall']) || intval($item['item_origin']) || (! intval($item['item_thread_top'])) || ($item['id'] != $item['parent'])) { logger('Item was local or a comment. rejected.'); return; } logger('Creating second delivery chain.'); start_delivery_chain($u[0],$item,$item_id,null); } } function item_community_tag($channel,$item) { // We received a community tag activity for a post. // See if we are the owner of the parent item and have given permission to tag our posts. // If so tag the parent post. logger('tag_deliver: community tag activity received: channel: ' . $channel['channel_name']); $tag_the_post = false; $p = null; $j_obj = json_decode($item['obj'],true); $j_tgt = json_decode($item['target'],true); if($j_tgt && $j_tgt['id']) { $p = q("select * from item where mid = '%s' and uid = %d limit 1", dbesc($j_tgt['id']), intval($channel['channel_id']) ); } if($p) { xchan_query($p); $items = fetch_post_tags($p,true); $pitem = $items[0]; $auth = get_iconfig($item,'system','communitytagauth'); if($auth) { if(rsa_verify('tagauth.' . $item['mid'],base64url_decode($auth),$pitem['owner']['xchan_pubkey']) || rsa_verify('tagauth.' . $item['mid'],base64url_decode($auth),$pitem['author']['xchan_pubkey'])) { logger('tag_deliver: tagging the post: ' . $channel['channel_name']); $tag_the_post = true; } } else { if(($pitem['owner_xchan'] === $channel['channel_hash']) && (! intval(get_pconfig($channel['channel_id'],'system','blocktags')))) { logger('tag_deliver: community tag recipient: ' . $channel['channel_name']); $tag_the_post = true; $sig = rsa_sign('tagauth.' . $item['mid'],$channel['channel_prvkey']); logger('tag_deliver: setting iconfig for ' . $item['id']); set_iconfig($item['id'],'system','communitytagauth',base64url_encode($sig),1); } } if($tag_the_post) { store_item_tag($channel['channel_id'],$pitem['id'],TERM_OBJ_POST,TERM_COMMUNITYTAG,$j_obj['title'],$j_obj['id']); } else { logger('Tag permission denied for ' . $channel['channel_address']); } } } /** * @brief This function is called pre-deliver to see if a post matches the criteria to be tag delivered. * * We don't actually do anything except check that it matches the criteria. * This is so that the channel with tag_delivery enabled can receive the post even if they turn off * permissions for the sender to send their stream. tag_deliver() can't be called until the post is actually stored. * By then it would be too late to reject it. * * @param number $uid A chnnel_id * @param array $item * @return boolean */ function tgroup_check($uid, $item) { $mention = false; // check that the message originated elsewhere and is a top-level post // or is a followup and we have already accepted the top level post as an uplink if($item['mid'] != $item['parent_mid']) { $r = q("select id from item where mid = '%s' and uid = %d and item_uplink = 1 limit 1", dbesc($item['parent_mid']), intval($uid) ); if($r) return true; return false; } // see if we already have this item. Maybe it is being updated. $r = q("select id from item where mid = '%s' and uid = %d limit 1", dbesc($item['mid']), intval($uid) ); if($r) return true; if(! perm_is_allowed($uid,$item['author_xchan'],'tag_deliver')) return false; $u = q("select * from channel left join xchan on channel_hash = xchan_hash where channel_id = %d limit 1", intval($uid) ); if(! $u) return false; $terms = array_merge(get_terms_oftype($item['term'],TERM_MENTION),get_terms_oftype($item['term'],TERM_FORUM)); if($terms) logger('tgroup_check: post mentions: ' . print_r($terms,true), LOGGER_DATA); $max_forums = get_config('system','max_tagged_forums',2); $matched_forums = 0; $link = normalise_link($u[0]['xchan_url']); if($terms) { foreach($terms as $term) { if(! link_compare($term['url'],$link)) { continue; } $mention = true; logger('tgroup_check: mention found for ' . $u[0]['channel_name']); // At this point we've determined that the person receiving this post was mentioned in it. // Now let's check if this mention was inside a reshare so we don't spam a forum // note: $term has been set to the matching term $body = preg_replace('/\[share(.*?)\[\/share\]/','',$item['body']); $forumpattern = '/\!\!?\[zrl\=([^\]]*?)\]((?:.(?!\[zrl\=))*?)\[\/zrl\]/'; $forumpattern2 = '/\[zrl\=([^\]]*?)\]\!((?:.(?!\[zrl\=))*?)\[\/zrl\]/'; $found = false; $matches = array(); if(preg_match_all($forumpattern,$body,$matches,PREG_SET_ORDER)) { foreach($matches as $match) { $matched_forums ++; if($term['url'] === $match[1] && intval($term['ttype']) === TERM_FORUM) { if($matched_forums <= $max_forums) { $found = true; break; } logger('forum ' . $term['term'] . ' exceeded max_tagged_forums - ignoring'); } } } if(preg_match_all($forumpattern2,$body,$matches,PREG_SET_ORDER)) { foreach($matches as $match) { $matched_forums ++; if($term['url'] === $match[1] && intval($term['ttype']) === TERM_FORUM) { if($matched_forums <= $max_forums) { $found = true; break; } logger('forum ' . $term['term'] . ' exceeded max_tagged_forums - ignoring'); } } } if(! $found) { logger('tgroup_check: mention was in a reshare or exceeded max_tagged_forums - ignoring'); continue; } return true; } } return false; } /** * Sourced and tag-delivered posts are re-targetted for delivery to the connections of the channel * receiving the post. This starts the second delivery chain, by resetting permissions and ensuring * that ITEM_UPLINK is set on the parent post, and storing the current owner_xchan as the source_xchan. * We'll become the new owner. If called without $parent, this *is* the parent post. * * @param array $channel * @param array $item * @param int $item_id * @param boolean $parent */ function start_delivery_chain($channel, $item, $item_id, $parent, $edit = false) { $sourced = check_item_source($channel['channel_id'],$item); if($sourced) { $r = q("select * from source where src_channel_id = %d and ( src_xchan = '%s' or src_xchan = '*' ) limit 1", intval($channel['channel_id']), dbesc(($item['source_xchan']) ? $item['source_xchan'] : $item['owner_xchan']) ); if($r && ! $edit) { $t = trim($r[0]['src_tag']); if($t) { $tags = explode(',',$t); if($tags) { foreach($tags as $tt) { $tt = trim($tt); if($tt) { q("insert into term (uid,oid,otype,ttype,term,url) values(%d,%d,%d,%d,'%s','%s') ", intval($channel['channel_id']), intval($item_id), intval(TERM_OBJ_POST), intval(TERM_CATEGORY), dbesc($tt), dbesc(z_root() . '/channel/' . $channel['channel_address'] . '?f=&cat=' . urlencode($tt)) ); } } } } } // This will change the author to the post owner. Useful for RSS feeds which are to be syndicated // to federated platforms which can't verify the identity of the author. // This MAY cause you to run afoul of copyright law. $rewrite_author = intval(get_abconfig($channel['channel_id'],$item['owner_xchan'],'system','rself')); if($rewrite_author) { $item['author_xchan'] = $channel['channel_hash']; $r = q("update item set author_xchan = '%s' where id = %d", dbesc($item['author_xchan']), intval($item_id) ); } } // Change this copy of the post to a forum head message and deliver to all the tgroup members // also reset all the privacy bits to the forum default permissions $private = (($channel['channel_allow_cid'] || $channel['channel_allow_gid'] || $channel['channel_deny_cid'] || $channel['channel_deny_gid']) ? 1 : 0); $new_public_policy = map_scope(PermissionLimits::Get($channel['channel_id'],'view_stream'),true); if((! $private) && $new_public_policy) $private = 1; $item_wall = 1; $item_origin = 1; $item_uplink = 0; $item_nocomment = 0; $flag_bits = $item['item_flags']; // maintain the original source, which will be the original item owner and was stored in source_xchan // when we created the delivery fork if($parent) { $r = q("update item set source_xchan = '%s' where id = %d", dbesc($parent['source_xchan']), intval($item_id) ); } else { $item_uplink = 1; // if this is an edit, item_store_update() will have already updated the item // with the correct value for source_xchan (by ignoring it). We cannot set to owner_xchan // in this case because owner_xchan will point to the parent of this chain // and not the original sender. if(! $edit) { $r = q("update item set source_xchan = owner_xchan where id = %d", intval($item_id) ); } } $title = $item['title']; $body = $item['body']; $r = q("update item set item_uplink = %d, item_nocomment = %d, item_flags = %d, owner_xchan = '%s', allow_cid = '%s', allow_gid = '%s', deny_cid = '%s', deny_gid = '%s', item_private = %d, public_policy = '%s', comment_policy = '%s', title = '%s', body = '%s', item_wall = %d, item_origin = %d where id = %d", intval($item_uplink), intval($item_nocomment), intval($flag_bits), dbesc($channel['channel_hash']), dbesc($channel['channel_allow_cid']), dbesc($channel['channel_allow_gid']), dbesc($channel['channel_deny_cid']), dbesc($channel['channel_deny_gid']), intval($private), dbesc($new_public_policy), dbesc(map_scope(PermissionLimits::Get($channel['channel_id'],'post_comments'))), dbesc($title), dbesc($body), intval($item_wall), intval($item_origin), intval($item_id) ); if($r) Master::Summon([ 'Notifier','tgroup',$item_id ]); else { logger('start_delivery_chain: failed to update item'); // reset the source xchan to prevent loops $r = q("update item set source_xchan = '' where id = %d", intval($item_id) ); } } /** * @brief * * Checks to see if this item owner is referenced as a source for this channel and if the post * matches the rules for inclusion in this channel. Returns true if we should create a second delivery * chain and false if none of the rules apply, or if the item is private. * * @param int $uid * @param array $item */ function check_item_source($uid, $item) { logger('source: uid: ' . $uid, LOGGER_DEBUG); $xchan = (($item['source_xchan']) ? $item['source_xchan'] : $item['owner_xchan']); $r = q("select * from source where src_channel_id = %d and ( src_xchan = '%s' or src_xchan = '*' ) limit 1", intval($uid), dbesc($xchan) ); if(! $r) { logger('source: no source record for this channel and source', LOGGER_DEBUG); return false; } $x = q("select abook_feed from abook where abook_channel = %d and abook_xchan = '%s' limit 1", intval($uid), dbesc($xchan) ); if(! $x) { logger('source: not connected to this channel.'); return false; } if(! get_abconfig($uid,$xchan,'their_perms','republish')) { logger('source: no republish permission'); return false; } if($item['item_private'] && (! intval($x[0]['abook_feed']))) { logger('source: item is private'); return false; } if($r[0]['src_channel_xchan'] === $xchan) { logger('source: cannot source yourself'); return false; } if (! $r[0]['src_patt']) { logger('source: success'); return true; } if (MessageFilter::evaluate($item, $r[0]['src_patt'], EMPTY_STR)) { logger('source: text filter success'); return true; } logger('source: filter fail'); return false; } function post_is_importable($item,$abook) { if(! $abook) return true; if(($abook['abook_channel']) && (! feature_enabled($abook['abook_channel'],'connfilter'))) return true; if(! $item) return false; if(! ($abook['abook_incl'] || $abook['abook_excl'])) return true; return MessageFilter::evaluate($item,$abook['abook_incl'],$abook['abook_excl']); } function mail_store($arr) { if(! $arr['channel_id']) { logger('mail_store: no uid'); return 0; } $channel = channelx_by_n($arr['channel_id']); if(! $arr['mail_obscured']) { if((strpos($arr['body'],'<') !== false) || (strpos($arr['body'],'>') !== false)) $arr['body'] = escape_tags($arr['body']); } if(array_key_exists('attach',$arr)) { if(is_array($arr['attach'])) { $arr['attach'] = json_encode($arr['attach']); } } else { $arr['attach'] = ''; } $arr['account_id'] = ((x($arr,'account_id')) ? intval($arr['account_id']) : 0); $arr['mid'] = ((x($arr,'mid')) ? notags(trim($arr['mid'])) : random_string()); $arr['from_xchan'] = ((x($arr,'from_xchan')) ? notags(trim($arr['from_xchan'])) : ''); $arr['to_xchan'] = ((x($arr,'to_xchan')) ? notags(trim($arr['to_xchan'])) : ''); $arr['created'] = ((x($arr,'created') !== false) ? datetime_convert('UTC','UTC',$arr['created']) : datetime_convert()); $arr['expires'] = ((x($arr,'expires') !== false) ? datetime_convert('UTC','UTC',$arr['expires']) : NULL_DATE); $arr['title'] = ((x($arr,'title')) ? trim($arr['title']) : ''); $arr['parent_mid'] = ((x($arr,'parent_mid')) ? notags(trim($arr['parent_mid'])) : ''); $arr['body'] = ((x($arr,'body')) ? trim($arr['body']) : ''); $arr['sig'] = ((x($arr,'sig')) ? trim($arr['sig']) : ''); $arr['conv_guid'] = ((x($arr,'conv_guid')) ? trim($arr['conv_guid']) : ''); $arr['mail_mimetype'] = ((x($arr,'mail_mimetype')) ? trim($arr['mail_mimetype']) : 'text/bbcode'); $arr['mail_flags'] = ((x($arr,'mail_flags')) ? intval($arr['mail_flags']) : 0 ); $arr['mail_raw'] = ((x($arr,'mail_raw')) ? intval($arr['mail_raw']) : 0 ); if($arr['parent_mid']) { $parent_item = q("select * from mail where mid = '%s' and channel_id = %d limit 1", dbesc($arr['parent_mid']), intval($arr['channel_id']) ); if(($parent_item) && (! $arr['conv_guid'])) { $arr['conv_guid'] = $parent_item[0]['conv_guid']; } } else { logger('mail_store: missing parent'); $arr['parent_mid'] = $arr['mid']; } if($arr['from_xchan'] === $channel['channel_hash']) $conversant = $arr['to_xchan']; else $conversant = $arr['from_xchan']; if(! $arr['conv_guid']) { $x = create_conversation($channel,$conversant,(($arr['title']) ? base64url_decode(str_rot47($arr['title'])) : '')); $arr['conv_guid'] = (($x) ? $x['guid'] : ''); } $r = q("SELECT id FROM mail WHERE mid = '%s' AND channel_id = %d LIMIT 1", dbesc($arr['mid']), intval($arr['channel_id']) ); if($r) { logger('Duplicate item ignored. ' . print_r($arr,true)); return 0; } if(! $r && $arr['mail_recalled'] == 1) { logger('Recalled item not found. ' . print_r($arr,true)); return 0; } /** * @hooks post_mail * Called when a mail message has been composed. */ call_hooks('post_mail', $arr); if(x($arr,'cancel')) { logger('Post cancelled by plugin.'); return 0; } logger('mail_store: ' . print_r($arr,true), LOGGER_DATA); create_table_from_array('mail', $arr); // find the item we just created $r = q("SELECT id FROM mail WHERE mid = '%s' AND channel_id = %d ORDER BY id ASC ", $arr['mid'], // already dbesc'd intval($arr['channel_id']) ); if($r) { $current_post = $r[0]['id']; logger('Created item ' . $current_post, LOGGER_DEBUG); $arr['id'] = $current_post; // for notification } else { logger('Could not locate created item'); return 0; } if(count($r) > 1) { logger('Duplicated post occurred. Removing duplicates.'); q("DELETE FROM mail WHERE mid = '%s' AND channel_id = %d AND id != %d ", $arr['mid'], intval($arr['channel_id']), intval($current_post) ); } else { $notif_params = array( 'from_xchan' => $arr['from_xchan'], 'to_xchan' => $arr['to_xchan'], 'type' => NOTIFY_MAIL, 'item' => $arr, 'verb' => ACTIVITY_POST, 'otype' => 'mail' ); Enotify::submit($notif_params); } if($arr['conv_guid']) { $c = q("update conv set updated = '%s' where guid = '%s' and uid = %d", dbesc(datetime_convert()), dbesc($arr['conv_guid']), intval($arr['channel_id']) ); } /** * @hooks post_mail_end * Called when a mail message has been delivered. */ call_hooks('post_mail_end', $arr); return $current_post; } function fix_private_photos($s, $uid, $item = null, $cid = 0) { logger('fix_private_photos', LOGGER_DEBUG); $site = substr(z_root(),strpos(z_root(),'://')); $orig_body = $s; $new_body = ''; $img_start = strpos($orig_body, '[zmg'); $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false); $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/zmg]') : false); while( ($img_st_close !== false) && ($img_len !== false) ) { $img_st_close++; // make it point to AFTER the closing bracket $image = substr($orig_body, $img_start + $img_st_close, $img_len); logger('Found photo ' . $image, LOGGER_DEBUG); if(stristr($image , $site . '/photo/')) { // Only embed locally hosted photos $replace = false; $i = basename($image); $x = strpos($i,'-'); if($x) { $res = substr($i,$x+1); $i = substr($i,0,$x); $r = q("SELECT * FROM photo WHERE resource_id = '%s' AND imgscale = %d AND uid = %d", dbesc($i), intval($res), intval($uid) ); if(count($r)) { // Check to see if we should replace this photo link with an embedded image // 1. No need to do so if the photo is public // 2. If there's a contact-id provided, see if they're in the access list // for the photo. If so, embed it. // 3. Otherwise, if we have an item, see if the item permissions match the photo // permissions, regardless of order but first check to see if they're an exact // match to save some processing overhead. if(has_permissions($r[0])) { if($cid) { $recips = enumerate_permissions($r[0]); if(in_array($cid, $recips)) { $replace = true; } } elseif($item) { if(compare_permissions($item,$r[0])) $replace = true; } } if($replace) { $data = $r[0]['data']; $type = $r[0]['type']; // If a custom width and height were specified, apply before embedding if(preg_match("/\[zmg\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) { logger('Scaling photo', LOGGER_DEBUG); $width = intval($match[1]); $height = intval($match[2]); $ph = photo_factory($data, $type); if($ph->is_valid()) { $ph->scaleImage(max($width, $height)); $data = $ph->imageString(); $type = $ph->getType(); } } logger('Replacing photo', LOGGER_DEBUG); $image = 'data:' . $type . ';base64,' . base64_encode($data); logger('Replaced: ' . $image, LOGGER_DATA); } } } } $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/zmg]'; $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/zmg]')); if($orig_body === false) $orig_body = ''; $img_start = strpos($orig_body, '[zmg'); $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false); $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/zmg]') : false); } $new_body = $new_body . $orig_body; return($new_body); } function has_permissions($obj) { if(($obj['allow_cid'] != '') || ($obj['allow_gid'] != '') || ($obj['deny_cid'] != '') || ($obj['deny_gid'] != '')) return true; return false; } function compare_permissions($obj1,$obj2) { // first part is easy. Check that these are exactly the same. if(($obj1['allow_cid'] == $obj2['allow_cid']) && ($obj1['allow_gid'] == $obj2['allow_gid']) && ($obj1['deny_cid'] == $obj2['deny_cid']) && ($obj1['deny_gid'] == $obj2['deny_gid'])) return true; // This is harder. Parse all the permissions and compare the resulting set. $recipients1 = enumerate_permissions($obj1); $recipients2 = enumerate_permissions($obj2); sort($recipients1); sort($recipients2); if($recipients1 == $recipients2) return true; return false; } /** * @brief Returns an array of contact-ids that are allowed to see this object. * * @param object $obj * @return array */ function enumerate_permissions($obj) { require_once('include/group.php'); $allow_people = expand_acl($obj['allow_cid']); $allow_groups = expand_groups(expand_acl($obj['allow_gid'])); $deny_people = expand_acl($obj['deny_cid']); $deny_groups = expand_groups(expand_acl($obj['deny_gid'])); $recipients = array_unique(array_merge($allow_people,$allow_groups)); $deny = array_unique(array_merge($deny_people,$deny_groups)); $recipients = array_diff($recipients,$deny); return $recipients; } function item_getfeedtags($item) { $terms = get_terms_oftype($item['term'],array(TERM_HASHTAG,TERM_MENTION,TERM_COMMUNITYTAG)); $ret = array(); if(count($terms)) { foreach($terms as $term) { if(($term['ttype'] == TERM_HASHTAG) || ($term['ttype'] == TERM_COMMUNITYTAG)) $ret[] = array('#',$term['url'],$term['term']); else $ret[] = array('@',$term['url'],$term['term']); } } return $ret; } function item_getfeedattach($item) { $ret = ''; $arr = explode(',',$item['attach']); if(count($arr)) { foreach($arr as $r) { $matches = false; $cnt = preg_match('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"\[\/attach\]|',$r,$matches); if($cnt) { $ret .= ' unstaged // $stage = 1 => set deleted flag on the item and perform intial notifications // $stage = 2 => perform low level delete at a later stage function drop_item($id,$interactive = true,$stage = DROPITEM_NORMAL,$force = false) { // These resource types have linked items that should only be removed at the same time // as the linked resource; if we encounter one set it to item_hidden rather than item_deleted. $linked_resource_types = [ 'photo' ]; // locate item to be deleted $r = q("SELECT * FROM item WHERE id = %d LIMIT 1", intval($id) ); if((! $r) || (intval($r[0]['item_deleted']) && ($stage === DROPITEM_NORMAL))) { if(! $interactive) return 0; notice( t('Item not found.') . EOL); goaway(z_root() . '/' . $_SESSION['return_url']); } $item = $r[0]; $linked_item = (($item['resource_id'] && $item['resource_type'] && in_array($item['resource_type'], $linked_resource_types)) ? true : false); $ok_to_delete = false; // system deletion if(! $interactive) $ok_to_delete = true; // owner deletion if(local_channel() && local_channel() == $item['uid']) $ok_to_delete = true; // sys owned item, requires site admin to delete $sys = get_sys_channel(); if(is_site_admin() && $sys['channel_id'] == $item['uid']) $ok_to_delete = true; // author deletion $observer = App::get_observer(); if($observer && $observer['xchan_hash'] && ($observer['xchan_hash'] === $item['author_xchan'])) $ok_to_delete = true; if($ok_to_delete) { // set the deleted flag immediately on this item just in case the // hook calls a remote process which loops. We'll delete it properly in a second. if(($linked_item) && (! $force)) { $r = q("UPDATE item SET item_hidden = 1 WHERE id = %d", intval($item['id']) ); } else { $r = q("UPDATE item SET item_deleted = 1 WHERE id = %d", intval($item['id']) ); } $arr = [ 'item' => $item, 'interactive' => $interactive, 'stage' => $stage ]; /** * @hooks drop_item * Called when an 'item' is removed. */ call_hooks('drop_item', $arr); $notify_id = intval($item['id']); $items = q("select * from item where parent = %d and uid = %d", intval($item['id']), intval($item['uid']) ); if($items) { foreach($items as $i) delete_item_lowlevel($i,$stage,$force); } else delete_item_lowlevel($item,$stage,$force); if(! $interactive) return 1; // send the notification upstream/downstream as the case may be // only send notifications to others if this is the owner's wall item. // This isn't optimal. We somehow need to pass to this function whether or not // to call the notifier, or we need to call the notifier from the calling function. // We'll rely on the undocumented behaviour that DROPITEM_PHASE1 is (hopefully) only // set if we know we're going to send delete notifications out to others. if((intval($item['item_wall']) && ($stage != DROPITEM_PHASE2)) || ($stage == DROPITEM_PHASE1)) { Master::Summon([ 'Notifier','drop',$notify_id ]); } goaway(z_root() . '/' . $_SESSION['return_url']); } else { if(! $interactive) return 0; notice( t('Permission denied.') . EOL); goaway(z_root() . '/' . $_SESSION['return_url']); } } /** * @warning This function does not check for permission and does not send * notifications and does not check recursion. * It merely destroys all resources associated with an item. * Please do not use without a suitable wrapper. * * @param array $item * @param int $stage * @param boolean $force * @return boolean */ function delete_item_lowlevel($item, $stage = DROPITEM_NORMAL, $force = false) { $linked_item = (($item['resource_id']) ? true : false); logger('item: ' . $item['id'] . ' stage: ' . $stage . ' force: ' . $force, LOGGER_DATA); switch($stage) { case DROPITEM_PHASE2: $r = q("UPDATE item SET item_pending_remove = 1, body = '', title = '', changed = '%s', edited = '%s' WHERE id = %d", dbesc(datetime_convert()), dbesc(datetime_convert()), intval($item['id']) ); break; case DROPITEM_PHASE1: if($linked_item && ! $force) { $r = q("UPDATE item SET item_hidden = 1, changed = '%s', edited = '%s' WHERE id = %d", dbesc(datetime_convert()), dbesc(datetime_convert()), intval($item['id']) ); } else { $r = q("UPDATE item set item_deleted = 1, changed = '%s', edited = '%s' where id = %d", dbesc(datetime_convert()), dbesc(datetime_convert()), intval($item['id']) ); } break; case DROPITEM_NORMAL: default: if($linked_item && ! $force) { $r = q("UPDATE item SET item_hidden = 1, changed = '%s', edited = '%s' WHERE id = %d", dbesc(datetime_convert()), dbesc(datetime_convert()), intval($item['id']) ); } else { $r = q("DELETE FROM item WHERE id = %d", intval($item['id']) ); } break; } // immediately remove any undesired profile likes. q("delete from likes where iid = %d and channel_id = %d", intval($item['id']), intval($item['uid']) ); // remove delivery reports $c = q("select channel_hash from channel where channel_id = %d limit 1", intval($item['uid']) ); if($c) { q("delete from dreport where dreport_xchan = '%s' and dreport_mid = '%s'", dbesc($c[0]['channel_hash']), dbesc($item['mid']) ); } // network deletion request. Keep the message structure so that we can deliver delete notifications. // Come back after several days (or perhaps a month) to do the lowlevel delete (DROPITEM_PHASE2). if($stage == DROPITEM_PHASE1) return true; $r = q("delete from term where otype = %d and oid = %d", intval(TERM_OBJ_POST), intval($item['id']) ); q("delete from iconfig where iid = %d", intval($item['id']) ); q("delete from term where oid = %d and otype = %d", intval($item['id']), intval(TERM_OBJ_POST) ); /** @FIXME remove notifications for this item */ return true; } /** * @brief Return the first post date. * * @param int $uid * @param boolean $wall (optional) no longer used * @return string|boolean date string, otherwise false */ function first_post_date($uid, $wall = false) { $sql_extra = ''; switch(App::$module) { case 'articles': $sql_extra .= " and item_type = 7 "; $item_normal = " and item.item_hidden = 0 and item.item_type = 7 and item.item_deleted = 0 and item.item_unpublished = 0 and item.item_delayed = 0 and item.item_pending_remove = 0 and item.item_blocked = 0 "; break; case 'channel': $sql_extra = " and item_wall = 1 "; default: $item_normal = item_normal(); break; } $r = q("select id, created from item where uid = %d and id = parent $item_normal $sql_extra order by created asc limit 1", intval($uid) ); if($r) { return substr(datetime_convert('',date_default_timezone_get(),$r[0]['created']),0,10); } return false; } /** * modified posted_dates() {below} to arrange the list in years, which we'll eventually * use to make a menu of years with collapsible sub-menus for the months instead of the * current flat list of all representative dates. * * @param int $uid * @param boolean $wall * @param string $mindate * @return array */ function list_post_dates($uid, $wall, $mindate) { $dnow = datetime_convert('',date_default_timezone_get(),'now','Y-m-d'); if($mindate) $dthen = datetime_convert('',date_default_timezone_get(), $mindate); else $dthen = first_post_date($uid, $wall); if(! $dthen) return array(); // If it's near the end of a long month, backup to the 28th so that in // consecutive loops we'll always get a whole month difference. if(intval(substr($dnow,8)) > 28) $dnow = substr($dnow,0,8) . '28'; if(intval(substr($dthen,8)) > 28) $dthen = substr($dthen,0,8) . '28'; $ret = array(); // Starting with the current month, get the first and last days of every // month down to and including the month of the first post while(substr($dnow, 0, 7) >= substr($dthen, 0, 7)) { $dyear = intval(substr($dnow,0,4)); $dstart = substr($dnow,0,8) . '01'; $dend = substr($dnow,0,8) . get_dim(intval($dnow),intval(substr($dnow,5))); $start_month = datetime_convert('','',$dstart,'Y-m-d'); $end_month = datetime_convert('','',$dend,'Y-m-d'); $str = day_translate(datetime_convert('','',$dnow,'F')); if(! $ret[$dyear]) $ret[$dyear] = array(); $ret[$dyear][] = array($str,$end_month,$start_month); $dnow = datetime_convert('','',$dnow . ' -1 month', 'Y-m-d'); } return $ret; } function posted_dates($uid,$wall) { $dnow = datetime_convert('',date_default_timezone_get(),'now','Y-m-d'); $dthen = first_post_date($uid,$wall); if(! $dthen) return array(); // If it's near the end of a long month, backup to the 28th so that in // consecutive loops we'll always get a whole month difference. if(intval(substr($dnow,8)) > 28) $dnow = substr($dnow,0,8) . '28'; if(intval(substr($dthen,8)) > 28) $dthen = substr($dthen,0,8) . '28'; $ret = array(); // Starting with the current month, get the first and last days of every // month down to and including the month of the first post while(substr($dnow, 0, 7) >= substr($dthen, 0, 7)) { $dstart = substr($dnow,0,8) . '01'; $dend = substr($dnow,0,8) . get_dim(intval($dnow),intval(substr($dnow,5))); $start_month = datetime_convert('','',$dstart,'Y-m-d'); $end_month = datetime_convert('','',$dend,'Y-m-d'); $str = day_translate(datetime_convert('','',$dnow,'F Y')); $ret[] = array($str,$end_month,$start_month); $dnow = datetime_convert('','',$dnow . ' -1 month', 'Y-m-d'); } return $ret; } /** * @brief Extend an item array with the associated tags of the posts. * * @param array $items * @param boolean $link (optional) default false * @return array Return the provided $items array after extended the posts with tags */ function fetch_post_tags($items, $link = false) { $tag_finder = array(); if($items) { foreach($items as $item) { if(is_array($item)) { if(array_key_exists('item_id',$item)) { if(! in_array($item['item_id'],$tag_finder)) $tag_finder[] = $item['item_id']; } else { if(! in_array($item['id'],$tag_finder)) $tag_finder[] = $item['id']; } } } } $tag_finder_str = implode(', ', $tag_finder); if(strlen($tag_finder_str)) { $tags = q("select * from term where oid in ( %s ) and otype = %d", dbesc($tag_finder_str), intval(TERM_OBJ_POST) ); $imeta = q("select * from iconfig where iid in ( %s )", dbesc($tag_finder_str) ); } for($x = 0; $x < count($items); $x ++) { if($tags) { foreach($tags as $t) { if(($link) && ($t['ttype'] == TERM_MENTION)) $t['url'] = chanlink_url($t['url']); if(array_key_exists('item_id',$items[$x])) { if($t['oid'] == $items[$x]['item_id']) { if(! is_array($items[$x]['term'])) $items[$x]['term'] = array(); $items[$x]['term'][] = $t; } } else { if($t['oid'] == $items[$x]['id']) { if(! is_array($items[$x]['term'])) $items[$x]['term'] = array(); $items[$x]['term'][] = $t; } } } } if($imeta) { foreach($imeta as $i) { if(array_key_exists('item_id',$items[$x])) { if($i['iid'] == $items[$x]['item_id']) { if(! is_array($items[$x]['iconfig'])) $items[$x]['iconfig'] = array(); $i['v'] = ((preg_match('|^a:[0-9]+:{.*}$|s',$i['v'])) ? unserialize($i['v']) : $i['v']); $items[$x]['iconfig'][] = $i; } } else { if($i['iid'] == $items[$x]['id']) { if(! is_array($items[$x]['iconfig'])) $items[$x]['iconfig'] = array(); $i['v'] = ((preg_match('|^a:[0-9]+:{.*}$|s',$i['v'])) ? unserialize($i['v']) : $i['v']); $items[$x]['iconfig'][] = $i; } } } } } return $items; } /** * @brief * * @param int $uid * @param string $observer_hash * @param array $arr * @return array */ function zot_feed($uid, $observer_hash, $arr) { $result = array(); $mindate = null; $message_id = null; $wall = true; require_once('include/security.php'); if(array_key_exists('mindate',$arr)) { $mindate = datetime_convert('UTC','UTC',$arr['mindate']); } if(array_key_exists('message_id',$arr)) { $message_id = $arr['message_id']; } if(array_key_exists('wall',$arr)) { $wall = intval($arr['wall']); } if(! $mindate) $mindate = NULL_DATE; $mindate = dbesc($mindate); logger('zot_feed: requested for uid ' . $uid . ' from observer ' . $observer_hash, LOGGER_DEBUG); if($message_id) logger('message_id: ' . $message_id,LOGGER_DEBUG); if(! perm_is_allowed($uid,$observer_hash,'view_stream')) { logger('zot_feed: permission denied.'); return $result; } if(! is_sys_channel($uid)) $sql_extra = item_permissions_sql($uid,$observer_hash); $limit = " LIMIT 5000 "; if($mindate > NULL_DATE) { $sql_extra .= " and ( created > '$mindate' or changed > '$mindate' ) "; } if($message_id) { $sql_extra .= " and mid = '" . dbesc($message_id) . "' "; $limit = ''; } if($wall) { $sql_extra .= " and item_wall = 1 "; } $items = []; $item_normal = item_normal(); if(is_sys_channel($uid)) { $nonsys_uids = q("SELECT channel_id FROM channel WHERE channel_system = 0"); $nonsys_uids_str = ids_to_querystr($nonsys_uids,'channel_id'); $r = q("SELECT parent, postopts FROM item WHERE uid IN ( %s ) AND item_private = 0 $item_normal $sql_extra ORDER BY created ASC $limit", intval($nonsys_uids_str) ); } else { $r = q("SELECT parent, postopts FROM item WHERE uid = %d $item_normal $sql_extra ORDER BY created ASC $limit", intval($uid) ); } $parents = []; if($r) { foreach($r as $rv) { if(array_key_exists($rv['parent'],$parents)) continue; if(strpos($rv['postopts'],'nodeliver') !== false) continue; $parents[$rv['parent']] = $rv; if(count($parents) > 200) break; } $parents_str = ids_to_querystr($parents,'parent'); $sys_query = ((is_sys_channel($uid)) ? $sql_extra : ''); $item_normal = item_normal(); $items = q("SELECT item.*, item.id AS item_id FROM item WHERE item.parent IN ( %s ) $item_normal $sys_query ", dbesc($parents_str) ); } if($items) { xchan_query($items); $items = fetch_post_tags($items); require_once('include/conversation.php'); $items = conv_sort($items,'ascending'); } else $items = array(); logger('zot_feed: number items: ' . count($items),LOGGER_DEBUG); foreach($items as $item) $result[] = encode_item($item); return $result; } function items_fetch($arr,$channel = null,$observer_hash = null,$client_mode = CLIENT_MODE_NORMAL,$module = 'network') { $result = array('success' => false); $sql_extra = ''; $sql_nets = ''; $sql_options = ''; $sql_extra2 = ''; $sql_extra3 = ''; $def_acl = ''; $item_uids = ' true '; $item_normal = item_normal(); if($arr['uid']) { $uid = $arr['uid']; } if($channel) { $uid = $channel['channel_id']; $uidhash = $channel['channel_hash']; $item_uids = " item.uid = " . intval($uid) . " "; } if($arr['star']) $sql_options .= " and item_starred = 1 "; if($arr['wall']) $sql_options .= " and item_wall = 1 "; if($arr['item_id']) $sql_options .= " and parent = " . intval($arr['item_id']) . " "; if($arr['mid']) $sql_options .= " and parent_mid = '" . dbesc($arr['mid']) . "' "; $sql_extra = " AND item.parent IN ( SELECT parent FROM item WHERE item_thread_top = 1 $sql_options $item_normal ) "; if($arr['since_id']) $sql_extra .= " and item.id > " . $since_id . " "; if($arr['cat']) $sql_extra .= protect_sprintf(term_query('item', $arr['cat'], TERM_CATEGORY)); if($arr['gid'] && $uid) { $r = q("SELECT * FROM pgrp WHERE id = %d AND uid = %d LIMIT 1", intval($arr['group']), intval($uid) ); if(! $r) { $result['message'] = t('Privacy group not found.'); return $result; } $contact_str = ''; $contacts = group_get_members($r[0]['id']); if ($contacts) { foreach($contacts as $c) { if($contact_str) $contact_str .= ','; $contact_str .= "'" . $c['xchan'] . "'"; } } else { $contact_str = ' 0 '; $result['message'] = t('Privacy group is empty.'); return $result; } $sql_extra = " AND item.parent IN ( SELECT DISTINCT parent FROM item WHERE true $sql_options AND (( author_xchan IN ( $contact_str ) OR owner_xchan in ( $contact_str)) or allow_gid like '" . protect_sprintf('%<' . dbesc($r[0]['hash']) . '>%') . "' ) and id = parent $item_normal ) "; $x = group_rec_byhash($uid,$r[0]['hash']); $result['headline'] = sprintf( t('Privacy group: %s'),$x['gname']); } elseif($arr['cid'] && $uid) { $r = q("SELECT abook.*, xchan.* from abook left join xchan on abook_xchan = xchan_hash where abook_id = %d and abook_channel = %d and abook_blocked = 0 limit 1", intval($arr['cid']), intval(local_channel()) ); if ($r) { $sql_extra = " AND item.parent IN ( SELECT DISTINCT parent FROM item WHERE true $sql_options AND uid = " . intval($arr['uid']) . " AND ( author_xchan = '" . dbesc($r[0]['abook_xchan']) . "' or owner_xchan = '" . dbesc($r[0]['abook_xchan']) . "' ) $item_normal ) "; $result['headline'] = sprintf( t('Connection: %s'),$r[0]['xchan_name']); } else { $result['message'] = t('Connection not found.'); return $result; } } if($channel && intval($arr['compat']) === 1) { $sql_extra = " AND author_xchan = '" . $channel['channel_hash'] . "' and item_private = 0 $item_normal "; } if ($arr['datequery']) { $sql_extra3 .= protect_sprintf(sprintf(" AND item.created <= '%s' ", dbesc(datetime_convert('UTC','UTC',$arr['datequery'])))); } if ($arr['datequery2']) { $sql_extra3 .= protect_sprintf(sprintf(" AND item.created >= '%s' ", dbesc(datetime_convert('UTC','UTC',$arr['datequery2'])))); } if($arr['search']) { if(strpos($arr['search'],'#') === 0) $sql_extra .= term_query('item',substr($arr['search'],1),TERM_HASHTAG,TERM_COMMUNITYTAG); else $sql_extra .= sprintf(" AND item.body like '%s' ", dbesc(protect_sprintf('%' . $arr['search'] . '%')) ); } if(strlen($arr['file'])) { $sql_extra .= term_query('item',$arr['files'],TERM_FILE); } if($arr['conv'] && $channel) { $sql_extra .= sprintf(" AND parent IN (SELECT distinct parent from item where ( author_xchan like '%s' or item_mentionsme = 1 )) ", dbesc(protect_sprintf($uidhash)) ); } if (($client_mode & CLIENT_MODE_UPDATE) && (! ($client_mode & CLIENT_MODE_LOAD))) { // only setup pagination on initial page view $pager_sql = ''; } else { $itemspage = (($channel) ? get_pconfig($uid,'system','itemspage') : 20); App::set_pager_itemspage(((intval($itemspage)) ? $itemspage : 20)); $pager_sql = sprintf(" LIMIT %d OFFSET %d ", intval(App::$pager['itemspage']), intval(App::$pager['start'])); } if (isset($arr['start']) && isset($arr['records'])) $pager_sql = sprintf(" LIMIT %d OFFSET %d ", intval($arr['records']), intval($arr['start'])); if (array_key_exists('cmin',$arr) || array_key_exists('cmax',$arr)) { if (($arr['cmin'] != 0) || ($arr['cmax'] != 99)) { // Not everybody who shows up in the network stream will be in your address book. // By default those that aren't are assumed to have closeness = 99; but this isn't // recorded anywhere. So if cmax is 99, we'll open the search up to anybody in // the stream with a NULL address book entry. $sql_nets .= " AND "; if ($arr['cmax'] == 99) $sql_nets .= " ( "; $sql_nets .= "( abook.abook_closeness >= " . intval($arr['cmin']) . " "; $sql_nets .= " AND abook.abook_closeness <= " . intval($arr['cmax']) . " ) "; if ($arr['cmax'] == 99) $sql_nets .= " OR abook.abook_closeness IS NULL ) "; } } $simple_update = (($client_mode & CLIENT_MODE_UPDATE) ? " and item.item_unseen = 1 " : ''); if($client_mode & CLIENT_MODE_LOAD) $simple_update = ''; //$start = dba_timer(); require_once('include/security.php'); $sql_extra .= item_permissions_sql($channel['channel_id'],$observer_hash); if($arr['pages']) $item_restrict = " AND item_type = " . ITEM_TYPE_WEBPAGE . " "; else $item_restrict = " AND item_type = 0 "; if($arr['item_type'] === '*') $item_restrict = ''; if ((($arr['compat']) || ($arr['nouveau'] && ($client_mode & CLIENT_MODE_LOAD))) && $channel) { // "New Item View" - show all items unthreaded in reverse created date order $items = q("SELECT item.*, item.id AS item_id FROM item WHERE $item_uids $item_restrict $simple_update $sql_extra $sql_nets $sql_extra3 ORDER BY item.received DESC $pager_sql" ); require_once('include/items.php'); xchan_query($items); $items = fetch_post_tags($items,true); } else { // Normal conversation view if($arr['order'] === 'post') $ordering = "created"; else $ordering = "commented"; if(($client_mode & CLIENT_MODE_LOAD) || ($client_mode == CLIENT_MODE_NORMAL)) { // Fetch a page full of parent items for this page $r = q("SELECT distinct item.id AS item_id, item.$ordering FROM item left join abook on item.author_xchan = abook.abook_xchan WHERE $item_uids $item_restrict AND item.parent = item.id and (abook.abook_blocked = 0 or abook.abook_flags is null) $sql_extra3 $sql_extra $sql_nets ORDER BY item.$ordering DESC $pager_sql " ); } else { // update $r = q("SELECT item.parent AS item_id FROM item left join abook on item.author_xchan = abook.abook_xchan WHERE $item_uids $item_restrict $simple_update and (abook.abook_blocked = 0 or abook.abook_flags is null) $sql_extra3 $sql_extra $sql_nets " ); } //$first = dba_timer(); // Then fetch all the children of the parents that are on this page if($r) { $parents_str = ids_to_querystr($r,'item_id'); if($arr['top']) $sql_extra = ' and id = parent ' . $sql_extra; $items = q("SELECT item.*, item.id AS item_id FROM item WHERE $item_uids $item_restrict AND item.parent IN ( %s ) $sql_extra ", dbesc($parents_str) ); //$second = dba_timer(); xchan_query($items); //$third = dba_timer(); $items = fetch_post_tags($items,false); //$fourth = dba_timer(); require_once('include/conversation.php'); $items = conv_sort($items,$ordering); //logger('items: ' . print_r($items,true)); } else { $items = array(); } if($parents_str && $arr['mark_seen']) $update_unseen = ' AND parent IN ( ' . dbesc($parents_str) . ' )'; /** @FIXME finish mark unseen sql */ } return $items; } function webpage_to_namespace($webpage) { if($webpage == ITEM_TYPE_WEBPAGE) $page_type = 'WEBPAGE'; elseif($webpage == ITEM_TYPE_BLOCK) $page_type = 'BUILDBLOCK'; elseif($webpage == ITEM_TYPE_PDL) $page_type = 'PDL'; elseif($webpage == ITEM_TYPE_CARD) $page_type = 'CARD'; elseif($webpage == ITEM_TYPE_ARTICLE) $page_type = 'ARTICLE'; elseif($webpage == ITEM_TYPE_DOC) $page_type = 'docfile'; else $page_type = 'unknown'; return $page_type; } function update_remote_id($channel,$post_id,$webpage,$pagetitle,$namespace,$remote_id,$mid) { if(! $post_id) return; $page_type = webpage_to_namespace($webpage); if($page_type == 'unknown' && $namespace && $remote_id) { $page_type = $namespace; $pagetitle = $remote_id; } else { $page_type = ''; } if($page_type) { // store page info as an alternate message_id so we can access it via // https://sitename/page/$channelname/$pagetitle // if no pagetitle was given or it couldn't be transliterated into a url, use the first // sixteen bytes of the mid - which makes the link portable and not quite as daunting // as the entire mid. If it were the post_id the link would be less portable. IConfig::Set( intval($post_id), 'system', $page_type, ($pagetitle) ? $pagetitle : substr($mid,0,16), false ); } } /** * @brief Change access control for item with message_id $mid and channel_id $uid. * * @param string $xchan_hash * @param string $mid * @param int $uid */ function item_add_cid($xchan_hash, $mid, $uid) { $r = q("select id from item where mid = '%s' and uid = %d and allow_cid like '%s'", dbesc($mid), intval($uid), dbesc('<' . $xchan_hash . '>') ); if(! $r) { $r = q("update item set allow_cid = concat(allow_cid,'%s') where mid = '%s' and uid = %d", dbesc('<' . $xchan_hash . '>'), dbesc($mid), intval($uid) ); } } function item_remove_cid($xchan_hash,$mid,$uid) { $r = q("select allow_cid from item where mid = '%s' and uid = %d and allow_cid like '%s'", dbesc($mid), intval($uid), dbesc('<' . $xchan_hash . '>') ); if($r) { $x = q("update item set allow_cid = '%s' where mid = '%s' and uid = %d", dbesc(str_replace('<' . $xchan_hash . '>','',$r[0]['allow_cid'])), dbesc($mid), intval($uid) ); } } // Set item permissions based on results obtained from linkify_tags() function set_linkified_perms($linkified, &$str_contact_allow, &$str_group_allow, $profile_uid, $parent_item = false, &$private) { $first_access_tag = true; foreach($linkified as $x) { $access_tag = $x['access_tag']; if(($access_tag) && (! $parent_item)) { logger('access_tag: ' . $tag . ' ' . print_r($access_tag,true), LOGGER_DATA); if ($first_access_tag && (! get_pconfig($profile_uid,'system','no_private_mention_acl_override'))) { // This is a tough call, hence configurable. The issue is that one can type in a @!privacy mention // and also have a default ACL (perhaps from viewing a collection) and could be suprised that the // privacy mention wasn't the only recipient. So the default is to wipe out the existing ACL if a // private mention is found. This can be over-ridden if you wish private mentions to be in // addition to the current ACL settings. $str_contact_allow = ''; $str_group_allow = ''; $first_access_tag = false; } if(strpos($access_tag,'cid:') === 0) { $str_contact_allow .= '<' . substr($access_tag,4) . '>'; $access_tag = ''; $private = 1; } elseif(strpos($access_tag,'gid:') === 0) { $str_group_allow .= '<' . substr($access_tag,4) . '>'; $access_tag = ''; $private = 1; } } } } /** * We can't trust ITEM_ORIGIN to tell us if this is a local comment * which needs to be relayed, because it was misconfigured at one point for several * months and set for some remote items (in alternate delivery chains). This could * cause looping, so use this hackish but accurate method. * * @param array $item * @return boolean */ function comment_local_origin($item) { if(stripos($item['mid'], App::get_hostname()) && ($item['parent'] != $item['id'])) return true; return false; } function send_profile_photo_activity($channel,$photo,$profile) { // for now only create activities for the default profile if(! intval($profile['is_default'])) return; $arr = array(); $arr['item_thread_top'] = 1; $arr['item_origin'] = 1; $arr['item_wall'] = 1; $arr['obj_type'] = ACTIVITY_OBJ_PHOTO; $arr['verb'] = ACTIVITY_UPDATE; $arr['obj'] = json_encode(array( 'type' => $arr['obj_type'], 'id' => z_root() . '/photo/profile/l/' . $channel['channel_id'], 'link' => array('rel' => 'photo', 'type' => $photo['type'], 'href' => z_root() . '/photo/profile/l/' . $channel['channel_id']) )); if(stripos($profile['gender'],t('female')) !== false) $t = t('%1$s updated her %2$s'); elseif(stripos($profile['gender'],t('male')) !== false) $t = t('%1$s updated his %2$s'); else $t = t('%1$s updated their %2$s'); $ptext = '[zrl=' . z_root() . '/photos/' . $channel['channel_address'] . '/image/' . $photo['resource_id'] . ']' . t('profile photo') . '[/zrl]'; $ltext = '[zrl=' . z_root() . '/profile/' . $channel['channel_address'] . ']' . '[zmg=150x150]' . z_root() . '/photo/' . $photo['resource_id'] . '-4[/zmg][/zrl]'; $arr['body'] = sprintf($t,$channel['channel_name'],$ptext) . "\n\n" . $ltext; $acl = new AccessList($channel); $x = $acl->get(); $arr['allow_cid'] = $x['allow_cid']; $arr['allow_gid'] = $x['allow_gid']; $arr['deny_cid'] = $x['deny_cid']; $arr['deny_gid'] = $x['deny_gid']; $arr['uid'] = $channel['channel_id']; $arr['aid'] = $channel['channel_account_id']; $arr['owner_xchan'] = $channel['channel_hash']; $arr['author_xchan'] = $channel['channel_hash']; post_activity_item($arr); } function sync_an_item($channel_id,$item_id) { $r = q("select * from item where id = %d", intval($item_id) ); if($r) { xchan_query($r); $sync_item = fetch_post_tags($r); build_sync_packet($channel_d,array('item' => array(encode_item($sync_item[0],true)))); } } function fix_attached_photo_permissions($uid,$xchan_hash,$body, $str_contact_allow,$str_group_allow,$str_contact_deny,$str_group_deny) { if(get_pconfig($uid,'system','force_public_uploads')) { $str_contact_allow = $str_group_allow = $str_contact_deny = $str_group_deny = ''; } $match = null; // match img and zmg image links if(preg_match_all("/\[[zi]mg(.*?)\](.*?)\[\/[zi]mg\]/",$body,$match)) { $images = $match[2]; if($images) { foreach($images as $image) { if(! stristr($image,z_root() . '/photo/')) continue; $image_uri = substr($image,strrpos($image,'/') + 1); if(strrpos($image_uri,'-') !== false) $image_uri = substr($image_uri,0, strrpos($image_uri,'-')); if(strrpos($image_uri,'.') !== false) $image_uri = substr($image_uri,0, strrpos($image_uri,'.')); if(! strlen($image_uri)) continue; $srch = '<' . $xchan_hash . '>'; $r = q("select folder from attach where hash = '%s' and uid = %d limit 1", dbesc($image_uri), intval($uid) ); if($r && $r[0]['folder']) { $f = q("select * from attach where hash = '%s' and is_dir = 1 and uid = %d limit 1", dbesc($r[0]['folder']), intval($uid) ); if(($f) && (($f[0]['allow_cid']) || ($f[0]['allow_gid']) || ($f[0]['deny_cid']) || ($f[0]['deny_gid']))) { $str_contact_allow = $f[0]['allow_cid']; $str_group_allow = $f[0]['allow_gid']; $str_contact_deny = $f[0]['deny_cid']; $str_group_deny = $f[0]['deny_gid']; } } $r = q("SELECT id FROM photo WHERE allow_cid = '%s' AND allow_gid = '' AND deny_cid = '' AND deny_gid = '' AND resource_id = '%s' AND uid = %d LIMIT 1", dbesc($srch), dbesc($image_uri), intval($uid) ); if($r) { $r = q("UPDATE photo SET allow_cid = '%s', allow_gid = '%s', deny_cid = '%s', deny_gid = '%s' WHERE resource_id = '%s' AND uid = %d ", dbesc($str_contact_allow), dbesc($str_group_allow), dbesc($str_contact_deny), dbesc($str_group_deny), dbesc($image_uri), intval($uid) ); // also update the linked item (which is probably invisible) $r = q("select id from item WHERE allow_cid = '%s' AND allow_gid = '' AND deny_cid = '' AND deny_gid = '' AND resource_id = '%s' and resource_type = 'photo' AND uid = %d LIMIT 1", dbesc($srch), dbesc($image_uri), intval($uid) ); if($r) { $private = (($str_contact_allow || $str_group_allow || $str_contact_deny || $str_group_deny) ? true : false); $r = q("UPDATE item SET allow_cid = '%s', allow_gid = '%s', deny_cid = '%s', deny_gid = '%s', item_private = %d WHERE id = %d AND uid = %d", dbesc($str_contact_allow), dbesc($str_group_allow), dbesc($str_contact_deny), dbesc($str_group_deny), intval($private), intval($r[0]['id']), intval($uid) ); } $r = q("select id from attach where hash = '%s' and uid = %d limit 1", dbesc($image_uri), intval($uid) ); if($r) { q("update attach SET allow_cid = '%s', allow_gid = '%s', deny_cid = '%s', deny_gid = '%s' WHERE id = %d AND uid = %d", dbesc($str_contact_allow), dbesc($str_group_allow), dbesc($str_contact_deny), dbesc($str_group_deny), intval($r[0]['id']), intval($uid) ); } } } } } } function fix_attached_file_permissions($channel,$observer_hash,$body, $str_contact_allow,$str_group_allow,$str_contact_deny,$str_group_deny) { if(get_pconfig($channel['channel_id'],'system','force_public_uploads')) { $str_contact_allow = $str_group_allow = $str_contact_deny = $str_group_deny = ''; } $match = false; if(preg_match_all("/\[attachment\](.*?)\[\/attachment\]/",$body,$match)) { $attaches = $match[1]; if($attaches) { foreach($attaches as $attach) { $hash = substr($attach,0,strpos($attach,',')); $rev = intval(substr($attach,strpos($attach,','))); attach_store($channel,$observer_hash,$options = 'update', array( 'hash' => $hash, 'revision' => $rev, 'allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow, 'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny )); } } } } function item_create_edit_activity($post) { if((! $post) || (! $post['item']) || ($post['item']['item_type'] != ITEM_TYPE_POST)) return; $update_item = $post['item']; $new_item = $update_item; $author = q("select * from xchan where xchan_hash = '%s' limit 1", dbesc($new_item['author_xchan']) ); if($author) $item_author = $author[0]; $new_item['id'] = 0; $new_item['parent'] = 0; $new_item['mid'] = item_message_id(); $new_item['body'] = sprintf( t('[Edited %s]'), (($update_item['item_thread_top']) ? t('Post','edit_activity') : t('Comment','edit_activity'))); $new_item['body'] .= "\n\n"; $new_item['body'] .= $update_item['body']; $new_item['sig'] = ''; $new_item['verb'] = ACTIVITY_UPDATE; $new_item['item_thread_top'] = 0; $new_item['created'] = $new_item['edited'] = datetime_convert(); $new_item['obj_type'] = (($update_item['item_thread_top']) ? ACTIVITY_OBJ_NOTE : ACTIVITY_OBJ_COMMENT); $new_item['obj'] = json_encode(array( 'type' => $new_item['obj_type'], 'id' => $update_item['mid'], 'parent' => $update_item['parent_mid'], 'link' => array(array('rel' => 'alternate','type' => 'text/html', 'href' => $update_item['plink'])), 'title' => $update_item['title'], 'content' => $update_item['body'], 'created' => $update_item['created'], 'edited' => $update_item['edited'], 'author' => array( 'name' => $item_author['xchan_name'], 'address' => $item_author['xchan_addr'], 'guid' => $item_author['xchan_guid'], 'guid_sig' => $item_author['xchan_guid_sig'], 'link' => array( array('rel' => 'alternate', 'type' => 'text/html', 'href' => $item_author['xchan_url']), array('rel' => 'photo', 'type' => $item_author['xchan_photo_mimetype'], 'href' => $item_author['xchan_photo_m'])), ), )); $x = post_activity_item($new_item); $post_id = $x['id']; if($post_id) { $r = q("select * from item where id = %d", intval($post_id) ); if($r) { xchan_query($r); $sync_item = fetch_post_tags($r); build_sync_packet($new_item['uid'],array('item' => array(encode_item($sync_item[0],true)))); } } Master::Summon([ 'Notifier', 'edit_activity', $post_id ]); } /** * @brief copies an entire conversation from the pubstream to this channel's stream * which will allow you to interact with it. */ function copy_of_pubitem($channel,$mid) { $result = null; $syschan = get_sys_channel(); // logger('copy_of_pubitem: ' . $channel['channel_id'] . ' mid: ' . $mid); $r = q("select * from item where mid = '%s' and uid = %d limit 1", dbesc($mid), intval($channel['channel_id']) ); if($r) { logger('exists'); $item = fetch_post_tags($r,true); return $item[0]; } $r = q("select * from item where parent_mid = (select parent_mid from item where mid = '%s' and uid = %d ) order by id ", dbesc($mid), intval($syschan['channel_id']) ); if($r) { $items = fetch_post_tags($r,true); foreach($items as $rv) { $d = q("select id from item where mid = '%s' and uid = %d limit 1", dbesc($rv['mid']), intval($channel['channel_id']) ); if($d) { continue; } unset($rv['id']); unset($rv['parent']); $rv['aid'] = $channel['channel_account_id']; $rv['uid'] = $channel['channel_id']; $rv['item_wall'] = 0; $rv['item_origin'] = 0; $x = item_store($rv); if($x['item_id'] && $x['item']['mid'] === $mid) { $result = $x['item']; } } } return $result; }