0 ", intval($item['uid']), intval(ABOOK_FLAG_SELF|ABOOK_FLAG_PENDING|ABOOK_FLAG_ARCHIVED) ); if($r) { foreach($r as $rr) { $recipients[] = $rr['abook_xchan']; } } } $deny_people = expand_acl($item['deny_cid']); $deny_groups = expand_groups(expand_acl($item['deny_gid'])); $deny = array_unique(array_merge($deny_people,$deny_groups)); // Don't deny anybody if nobody was allowed (e.g. they were all filtered out) // That would lead to array_diff doing the wrong thing. // This will result in a private post that won't be delivered to anybody. if($recipients && $deny) $recipients = array_diff($recipients,$deny); $private_envelope = true; } else { // if the post is marked private but there are no recipients and public_policy/scope = self, // only add the author and owner as recipients. The ACL for the post may live on the hub of // a different clone. We need to get the post to that hub. // The post may be private by virtue of not being visible to anybody on the internet, // but there are no envelope recipients, so set this to false. Delivery is controlled // by the directives in $item['public_policy']. $private_envelope = false; require_once('include/identity.php'); //$sys = get_sys_channel(); if(array_key_exists('public_policy',$item) && $item['public_policy'] !== 'self') { $r = q("select abook_xchan, xchan_network from abook left join xchan on abook_xchan = xchan_hash where abook_channel = %d and not (abook_flags & %d)>0 ", intval($item['uid']), intval(ABOOK_FLAG_SELF|ABOOK_FLAG_PENDING|ABOOK_FLAG_ARCHIVED) ); if($r) { // filter out restrictive public_policy settings from remote networks // which don't have this concept and will treat them as public. $policy = substr($item['public_policy'],0,3); foreach($r as $rr) { switch($policy) { case 'net': case 'aut': case 'sit': case 'any': case 'con': if($rr['xchan_network'] != 'zot') break; case 'pub': case '': default: $recipients[] = $rr['abook_xchan']; break; } } } // we probably want to check that discovery channel delivery is allowed before uncommenting this. // if($policy === 'pub') // $recipients[] = $sys['xchan_hash']; } } // This is a somewhat expensive operation but important. // Don't send this item to anybody who isn't allowed to see it $recipients = check_list_permissions($item['uid'],$recipients,'view_stream'); // remove any upstream recipients from our list. // If it is ourself we'll add it back in a second. // This should prevent complex delivery chains from getting overly complex by not // sending to anybody who is on our list of those who sent it to us. if($item['route']) { $route = explode(',',$item['route']); if(count($route)) { $route = array_unique($route); $recipients = array_diff($recipients,$route); } } // add ourself just in case we have nomadic clones that need to get a copy. $recipients[] = $item['author_xchan']; if($item['owner_xchan'] != $item['author_xchan']) $recipients[] = $item['owner_xchan']; return $recipients; } /** * If channel is configured to filter insecure members of privacy groups * (those whose networks leak privacy via email notifications or other criteria) * remove them from any privacy groups (collections) that were included in a post. * They can still be addressed individually. * Networks may need to be added or removed from this list as circumstances change. * * Update: this may need to be the default, which will force people to opt-in to * sending stuff privately to insecure platforms. * * @param int $channel_id * @param array $arr * @return array containing the sane xchan_hashes */ function filter_insecure($channel_id, $arr) { $insecure_nets = " and not xchan_network in ('diaspora', 'friendica-over-diaspora') "; $ret = array(); if((! intval(get_config($channel_id, 'system', 'filter_insecure_collections'))) || (! $arr)) return $arr; $str = ''; foreach($arr as $rr) { if(strlen($str)) $str .= ','; $str .= "'" . dbesc($rr) . "'"; } $r = q("select xchan_hash from xchan where xchan_hash in ($str) $insecure_nets"); if($r) { foreach($r as $rr) { $ret[] = $rr['xchan_hash']; } } return $ret; } function comments_are_now_closed($item) { if($item['comments_closed'] !== NULL_DATE) { $d = datetime_convert(); if($d > $item['comments_closed']) return true; } return false; } /** * @brief * * 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['book_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('can_comment_on_post: comment_policy: ' . $item['comment_policy'], LOGGER_DEBUG); 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 === $item['owner_xchan']) return true; break; case 'public': // We don't allow public comments yet, until a policy // for dealing with anonymous comments is in place with // a means to moderate comments. Until that time, return // false. return false; break; case 'any connections': case 'contacts': case 'authenticated': case '': if(array_key_exists('owner',$item)) { if(($item['owner']['abook_xchan']) && ($item['owner']['abook_their_perms'] & PERMS_W_COMMENT)) 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'],get_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 preg_match function when fixing 'naked' links in mod item.php. * * Check if we've got a hubloc for the site and use a zrl if we do, a url if we don't. * Remove any existing zid= param which may have been pasted by mistake - and will have * the author's credentials. zid's are dynamic and can't really be passed around like * that. * * @param array $matches * @return string */ function red_zrl_callback($matches) { require_once('include/hubloc.php'); $zrl = is_matrix_url($matches[2]); $t = strip_zids($matches[2]); if($t !== $matches[2]) { $zrl = true; $matches[2] = $t; } if($matches[1] === '#^') $matches[1] = ''; if($zrl) return $matches[1] . '#^[zrl=' . $matches[2] . ']' . $matches[2] . '[/zrl]'; return $matches[1] . '#^[url=' . $matches[2] . ']' . $matches[2] . '[/url]'; } /** * If we've got a url or zrl tag with a naked url somewhere in the link text, * escape it with quotes unless the naked url is a linked photo. * * @param array $matches * @return string */ function red_escape_zrl_callback($matches) { // Uncertain why the url/zrl forms weren't picked up by the non-greedy regex. if((strpos($matches[3], 'zmg') !== false) || (strpos($matches[3], 'img') !== false) || (strpos($matches[3],'zrl') !== false) || (strpos($matches[3],'url') !== false)) return $matches[0]; return '[' . $matches[1] . 'rl' . $matches[2] . ']' . $matches[3] . '"' . $matches[4] . '"' . $matches[5] . '[/' . $matches[6] . 'rl]'; } function red_escape_codeblock($m) { return '[$b64' . $m[2] . base64_encode($m[1]) . '[/' . $m[2] . ']'; } function red_unescape_codeblock($m) { return '[' . $m[2] . base64_decode($m[1]) . '[/' . $m[2] . ']'; } function red_zrlify_img_callback($matches) { require_once('include/hubloc.php'); $zrl = is_matrix_url($matches[2]); $t = strip_zids($matches[2]); if($t !== $matches[2]) { $zrl = true; $matches[2] = $t; } if($zrl) return '[zmg' . $matches[1] . ']' . $matches[2] . '[/zmg]'; return $matches[0]; } /** * @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 $arr * @returns array * * \e boolean \b success true or false * * \e array \b activity the resulting activity if successful */ function post_activity_item($arr) { $ret = array('success' => false); $is_comment = false; if((($arr['parent']) && $arr['parent'] != $arr['id']) || (($arr['parent_mid']) && $arr['parent_mid'] != $arr['mid'])) $is_comment = true; if(! x($arr,'item_flags')) { if($is_comment) $arr['item_flags'] = ITEM_ORIGIN; else $arr['item_flags'] = ITEM_ORIGIN | ITEM_WALL | ITEM_THREAD_TOP; } $channel = get_app()->get_channel(); $observer = get_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; } $arr['public_policy'] = ((x($_REQUEST,'public_policy')) ? escape_tags($_REQUEST['public_policy']) : map_scope($channel['channel_r_stream'],true)); if($arr['public_policy']) $arr['item_private'] = 1; if(! array_key_exists('mimetype',$arr)) $arr['mimetype'] = 'text/bbcode'; if(array_key_exists('item_private',$arr) && $arr['item_private']) { $arr['body'] = z_input_filter($arr['uid'],$arr['body'],$arr['mimetype']); if($channel) { if($channel['channel_hash'] === $arr['author_xchan']) { $arr['sig'] = base64url_encode(rsa_sign($arr['body'],$channel['channel_prvkey'])); $arr['item_flags'] = $arr['item_flags'] | ITEM_VERIFIED; } } logger('Encrypting local storage'); $key = get_config('system','pubkey'); $arr['item_flags'] = $arr['item_flags'] | ITEM_OBSCURED; if($arr['title']) $arr['title'] = json_encode(crypto_encapsulate($arr['title'],$key)); if($arr['body']) $arr['body'] = json_encode(crypto_encapsulate($arr['body'],$key)); } $arr['mid'] = ((x($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; $arr['allow_cid'] = ((x($arr,'allow_cid')) ? $arr['allow_cid'] : $channel['channel_allow_cid']); $arr['allow_gid'] = ((x($arr,'allow_gid')) ? $arr['allow_gid'] : $channel['channel_allow_gid']); $arr['deny_cid'] = ((x($arr,'deny_cid')) ? $arr['deny_cid'] : $channel['channel_deny_cid']); $arr['deny_gid'] = ((x($arr,'deny_gid')) ? $arr['deny_gid'] : $channel['channel_deny_gid']); $arr['comment_policy'] = map_scope($channel['channel_w_comment']); if ((! $arr['plink']) && ($arr['item_flags'] & ITEM_THREAD_TOP)) { $arr['plink'] = z_root() . '/channel/' . $channel['channel_address'] . '/?f=&mid=' . $arr['mid']; } // for the benefit of plugins, we will behave as if this is an API call rather than a normal online post $_REQUEST['api_source'] = 1; call_hooks('post_local',$arr); if(x($arr,'cancel')) { logger('post_activity_item: post cancelled by plugin.'); return $ret; } $post = item_store($arr); if($post['success']) $post_id = $post['item_id']; if($post_id) { $arr['id'] = $post_id; call_hooks('post_local_end', $arr); proc_run('php','include/notifier.php','activity',$post_id); $ret['success'] = true; $r = q("select * from item where id = %d limit 1", intval($post_id) ); if($r) $ret['activity'] = $r[0]; } return $ret; } /** * @brief Generate an Atom feed. * * @param array $channel * @param array $params */ function get_public_feed($channel, $params) { $type = 'xml'; $begin = NULL_DATE; $end = ''; $start = 0; $records = 40; $direction = 'desc'; $pages = 0; if(! $params) $params = array(); $params['type'] = ((x($params,'type')) ? $params['type'] : 'xml'); $params['begin'] = ((x($params,'begin')) ? $params['begin'] : NULL_DATE); $params['end'] = ((x($params,'end')) ? $params['end'] : datetime_convert('UTC','UTC','now')); $params['start'] = ((x($params,'start')) ? $params['start'] : 0); $params['records'] = ((x($params,'records')) ? $params['records'] : 40); $params['direction'] = ((x($params,'direction')) ? $params['direction'] : 'desc'); $params['pages'] = ((x($params,'pages')) ? intval($params['pages']) : 0); $params['top'] = ((x($params,'top')) ? intval($params['top']) : 0); switch($params['type']) { case 'json': header("Content-type: application/atom+json"); break; case 'xml': default: header("Content-type: application/atom+xml"); break; } return get_feed_for($channel, get_observer_hash(), $params); } /** * @brief * * @param array $channel * @param string $observer_hash * @param array $params * @return string */ function get_feed_for($channel, $observer_hash, $params) { if(! channel) http_status_exit(401); if($params['pages']) { if(! perm_is_allowed($channel['channel_id'],$observer_hash,'view_pages')) http_status_exit(403); } else { if(! perm_is_allowed($channel['channel_id'],$observer_hash,'view_stream')) http_status_exit(403); } $items = items_fetch(array( 'wall' => '1', 'datequery' => $params['begin'], 'datequery2' => $params['end'], 'start' => $params['start'], // FIXME 'records' => $params['records'], // FIXME 'direction' => $params['direction'], // FIXME 'pages' => $params['pages'], 'order' => 'post', 'top' => $params['top'] ), $channel, $observer_hash, CLIENT_MODE_NORMAL, get_app()->module); $feed_template = get_markup_template('atom_feed.tpl'); $atom = ''; $atom .= replace_macros($feed_template, array( '$version' => xmlify(RED_VERSION), '$red' => xmlify(PLATFORM_NAME), '$feed_id' => xmlify($channel['xchan_url']), '$feed_title' => xmlify($channel['channel_name']), '$feed_updated' => xmlify(datetime_convert('UTC', 'UTC', 'now' , ATOM_TIME)) , '$hub' => '', // feed_hublinks(), '$salmon' => '', // feed_salmonlinks($channel['channel_address']), '$name' => xmlify($channel['channel_name']), '$profile_page' => xmlify($channel['xchan_url']), '$mimephoto' => xmlify($channel['xchan_photo_mimetype']), '$photo' => xmlify($channel['xchan_photo_l']), '$thumb' => xmlify($channel['xchan_photo_m']), '$picdate' => '', '$uridate' => '', '$namdate' => '', '$birthday' => '', '$community' => '', )); call_hooks('atom_feed', $atom); if($items) { $type = 'html'; foreach($items as $item) { if($item['item_private']) continue; /** @BUG $owner is undefined in this call */ $atom .= atom_entry($item, $type, null, $owner, true); } } call_hooks('atom_feed_end', $atom); $atom .= '' . "\r\n"; return $atom; } /** * @brief * * @param array $item an associative array with * * \b string \b verb * @return string item's verb if set, default ACTIVITY_POST see boot.php */ function construct_verb($item) { if ($item['verb']) return $item['verb']; return ACTIVITY_POST; } function construct_activity_object($item) { if($item['object']) { $o = '' . "\r\n"; $r = json_decode($item['object'],false); if(! $r) return ''; if($r->type) $o .= '' . xmlify($r->type) . '' . "\r\n"; if($r->id) $o .= '' . xmlify($r->id) . '' . "\r\n"; if($r->title) $o .= '' . "\r\n"; if($r->links) { /** @FIXME!! */ if(substr($r->link,0,1) === '<') { $r->link = preg_replace('/\/','',$r->link); $o .= $r->link; } else $o .= '' . "\r\n"; } if($r->content) $o .= '' . xmlify(bbcode($r->content)) . '' . "\r\n"; $o .= '' . "\r\n"; return $o; } return ''; } function construct_activity_target($item) { if($item['target']) { $o = '' . "\r\n"; $r = json_decode($item['target'],false); if(! $r) return ''; if($r->type) $o .= '' . xmlify($r->type) . '' . "\r\n"; if($r->id) $o .= '' . xmlify($r->id) . '' . "\r\n"; if($r->title) $o .= '' . "\r\n"; if($r->links) { /** @FIXME !!! */ if(substr($r->link,0,1) === '<') { if(strstr($r->link,'&') && (! strstr($r->link,'&'))) $r->link = str_replace('&','&', $r->link); $r->link = preg_replace('/\/','',$r->link); $o .= $r->link; } else $o .= '' . "\r\n"; } if($r->content) $o .= '' . xmlify(bbcode($r->content)) . '' . "\r\n"; $o .= '' . "\r\n"; return $o; } return ''; } /** * @brief Limit lenght 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('limit_body_size: 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) { $arr = array(); $arr['body'] = (($x['body']) ? htmlspecialchars($x['body'],ENT_COMPAT,'UTF-8',false) : ''); $key = get_config('system','pubkey'); $maxlen = get_max_import_size(); if($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['created'] > datetime_convert()) $arr['created'] = datetime_convert(); if($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) : ''); $arr['diaspora_meta'] = (($x['diaspora_signature']) ? json_encode(crypto_encapsulate($x['diaspora_signature'],$key)) : ''); $arr['object'] = activity_sanitise($x['object']); $arr['target'] = activity_sanitise($x['target']); $arr['attach'] = activity_sanitise($x['attach']); $arr['term'] = decode_tags($x['tags']); $arr['item_private'] = ((array_key_exists('flags',$x) && is_array($x['flags']) && in_array('private',$x['flags'])) ? 1 : 0); $arr['item_flags'] = 0; if(array_key_exists('flags',$x) && in_array('consensus',$x['flags'])) $arr['item_flags'] |= ITEM_CONSENSUS; if(array_key_exists('flags',$x) && in_array('deleted',$x['flags'])) $arr['item_restrict'] |= ITEM_DELETED; if(array_key_exists('flags',$x) && in_array('hidden',$x['flags'])) $arr['item_restrict'] |= ITEM_HIDDEN; // Here's the deal - the site might be down or whatever but if there's a new person you've never // seen before sending stuff to your stream, we MUST be able to look them up and import their data from their // hub and verify that they are legit - or else we're going to toss the post. We only need to do this // once, and after that your hub knows them. Sure some info is in the post, but it's only a transit identifier // and not enough info to be able to look you up from your hash - which is the only thing stored with the post. if(($xchan_hash = import_author_xchan($x['author'])) !== false) $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'] = $arr['author_xchan']; else { if(($xchan_hash = import_author_xchan($x['owner'])) !== false) $arr['owner_xchan'] = $xchan_hash; else return array(); } if($arr['sig']) { $r = q("select xchan_pubkey from xchan where xchan_hash = '%s' limit 1", dbesc($arr['author_xchan']) ); if($r && rsa_verify($x['body'],base64url_decode($arr['sig']),$r[0]['xchan_pubkey'])) $arr['item_flags'] |= ITEM_VERIFIED; else logger('get_item_elements: message verification failed.'); } // if it's a private post, encrypt it in the DB. // We have to do that here because we need to cleanse the input and prevent bad stuff from getting in, // and we need plaintext to do that. if(intval($arr['item_private'])) { $arr['item_flags'] = $arr['item_flags'] | ITEM_OBSCURED; if($arr['title']) $arr['title'] = json_encode(crypto_encapsulate($arr['title'],$key)); if($arr['body']) $arr['body'] = json_encode(crypto_encapsulate($arr['body'],$key)); } if(array_key_exists('revision',$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['item_restrict'] = $x['item_restrict']; $arr['item_flags'] = $x['item_flags']; $arr['attach'] = $x['attach']; } return $arr; } function import_author_xchan($x) { $arr = array('xchan' => $x, 'xchan_hash' => ''); call_hooks('import_author_xchan',$arr); if($arr['xchan_hash']) return $arr['xchan_hash']; if((! array_key_exists('network', $x)) || ($x['network'] === 'zot')) { $y = import_author_zot($x); } if(! $y) $y = import_author_diaspora($x); if($x['network'] === 'rss') { $y = import_author_rss($x); } if($x['network'] === 'unknown') { $y = import_author_unknown($x); } return(($y) ? $y : false); } /** * @brief Imports an author from Diaspora. * * @param array $x an associative array with * * \e string \b address * @return boolean|string false on error, otherwise xchan_hash of the new entry */ function import_author_diaspora($x) { if(! $x['address']) return false; if(discover_by_webbie($x['address'])) { $r = q("select xchan_hash from xchan where xchan_addr = '%s' limit 1", dbesc($x['address']) ); if($r) return $r[0]['xchan_hash']; } return false; } /** * @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('import_author_rss: in cache' , LOGGER_DEBUG); return $r[0]['xchan_hash']; } $name = trim($x['name']); $r = q("insert into xchan ( xchan_hash, xchan_guid, xchan_url, xchan_name, xchan_network ) values ( '%s', '%s', '%s', '%s', '%s' )", dbesc($x['guid']), dbesc($x['guid']), dbesc($x['url']), dbesc(($name) ? $name : t('(Unknown)')), dbesc('rss') ); if($r && $x['photo']) { $photos = import_profile_photo($x['photo']['src'],$x['url']); if($photos) { /** @bug $arr is undefined in this SQL query */ $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('UTC', 'UTC', $arr['photo_updated'])), dbesc($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) { 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('import_author_unknown: in cache' , LOGGER_DEBUG); return $r[0]['xchan_hash']; } $name = trim($x['name']); $r = q("insert into xchan ( xchan_hash, xchan_guid, xchan_url, xchan_name, xchan_network ) values ( '%s', '%s', '%s', '%s', '%s' )", dbesc($x['url']), dbesc($x['url']), dbesc($x['url']), dbesc(($name) ? $name : t('(Unknown)')), dbesc('unknown') ); if($r && $x['photo']) { $photos = import_profile_photo($x['photo']['src'],$x['url']); if($photos) { /** @bug $arr is undefined in this SQL query */ $r = q("update xchan set xchan_photo_date = '%s', xchan_photo_l = '%s', xchan_photo_m = '%s', xchan_photo_s = '%s', xchan_photo_mimetype = '%s' where xchan_url = '%s' and xchan_network = 'unknown'", dbesc(datetime_convert('UTC','UTC',$arr['photo_updated'])), dbesc($photos[0]), dbesc($photos[1]), dbesc($photos[2]), dbesc($photos[3]), dbesc($x['url']) ); if($r) return $x['url']; } } return false; } function encode_item($item,$mirror = false) { $x = array(); $x['type'] = 'activity'; $x['encoding'] = 'zot'; // logger('encode_item: ' . print_r($item,true)); $r = q("select channel_r_stream, channel_w_comment from channel where channel_id = %d limit 1", intval($item['uid']) ); if($r) $comment_scope = $r[0]['channel_w_comment']; else $comment_scope = 0; $scope = $item['public_policy']; if(! $scope) $scope = 'public'; $c_scope = map_scope($comment_scope); $key = get_config('system','prvkey'); if(array_key_exists('item_flags',$item) && ($item['item_flags'] & ITEM_OBSCURED)) { if($item['title']) $item['title'] = crypto_unencapsulate(json_decode_plus($item['title']),$key); if($item['body']) $item['body'] = crypto_unencapsulate(json_decode_plus($item['body']),$key); } // If we're trying to backup an item so that it's recoverable or for export/imprt, // add all the attributes we need to recover it if($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['item_restrict'] = $item['item_restrict']; $x['item_flags'] = $item['item_flags']; $x['attach'] = $item['attach']; } $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['object']) $x['object'] = json_decode_plus($item['object']); if($item['target']) $x['target'] = json_decode_plus($item['target']); if($item['attach']) $x['attach'] = json_decode_plus($item['attach']); 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_flags'] & ITEM_NOCOMMENT) $x['comment_scope'] = 'none'; else $x['comment_scope'] = $c_scope; if($item['term']) $x['tags'] = encode_item_terms($item['term']); if($item['diaspora_meta']) $x['diaspora_signature'] = crypto_unencapsulate(json_decode($item['diaspora_meta'],true),$key); logger('encode_item: ' . print_r($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: ' . get_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['hubloc_url']) ? $xchan['hubloc_url'] : $xchan['xchan_url']); $ret['network'] = $xchan['xchan_network']; $ret['photo'] = array('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) { $ret = array(); $allowed_export_terms = array( TERM_UNKNOWN, TERM_HASHTAG, TERM_MENTION, TERM_CATEGORY, TERM_BOOKMARK ); if($terms) { foreach($terms as $term) { if(in_array($term['type'],$allowed_export_terms)) $ret[] = array('tag' => $term['term'], 'url' => $term['url'], 'type' => termtype($term['type'])); } } return $ret; } /** * @brief * * @param int $t * @return string */ function termtype($t) { $types = array('unknown','hashtag','mention','category','private_category','file','search','thing','bookmark'); return(($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['type'] = TERM_HASHTAG; break; case 'mention': $tag['type'] = TERM_MENTION; break; case 'category': $tag['type'] = TERM_CATEGORY; break; case 'private_category': $tag['type'] = TERM_PCATEGORY; break; case 'file': $tag['type'] = TERM_FILE; break; case 'search': $tag['type'] = TERM_SEARCH; break; case 'thing': $tag['type'] = TERM_THING; break; case 'bookmark': $tag['type'] = TERM_BOOKMARK; break; default: case 'unknown': $tag['type'] = 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. $ret = array(); if($item['item_restrict'] & ITEM_DELETED) $ret[] = 'deleted'; if($item['item_restrict'] & ITEM_HIDDEN) $ret[] = 'hidden'; if($item['item_flags'] & ITEM_THREAD_TOP) $ret[] = 'thread_parent'; if($item['item_flags'] & ITEM_NSFW) $ret[] = 'nsfw'; if($item['item_flags'] & ITEM_CONSENSUS) $ret[] = 'consensus'; if($item['item_private']) $ret[] = 'private'; return $ret; } function encode_mail($item) { $x = array(); $x['type'] = 'mail'; $x['encoding'] = 'zot'; if(array_key_exists('mail_flags',$item) && ($item['mail_flags'] & MAIL_OBSCURED)) { $key = get_config('system','prvkey'); if($item['title']) $item['title'] = crypto_unencapsulate(json_decode_plus($item['title']),$key); if($item['body']) $item['body'] = crypto_unencapsulate(json_decode_plus($item['body']),$key); } $x['message_id'] = $item['mid']; $x['message_parent'] = $item['parent_mid']; $x['created'] = $item['created']; $x['expires'] = $item['expires']; $x['diaspora_meta'] = $item['diaspora_meta']; $x['title'] = $item['title']; $x['body'] = $item['body']; $x['from'] = encode_item_xchan($item['from']); $x['to'] = encode_item_xchan($item['to']); if($item['attach']) $x['attach'] = json_decode_plus($item['attach']); $x['flags'] = array(); if($item['mail_flags'] & MAIL_RECALLED) { $x['flags'][] = 'recalled'; $x['title'] = ''; $x['body'] = ''; } return $x; } function get_mail_elements($x) { $arr = array(); $arr['body'] = (($x['body']) ? htmlspecialchars($x['body'], ENT_COMPAT,'UTF-8',false) : ''); $arr['title'] = (($x['title'])? htmlspecialchars($x['title'],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_flags'] |= MAIL_RECALLED; } } $key = get_config('system','pubkey'); $arr['mail_flags'] |= MAIL_OBSCURED; $arr['body'] = htmlspecialchars($arr['body'],ENT_COMPAT,'UTF-8',false); if($arr['body']) $arr['body'] = json_encode(crypto_encapsulate($arr['body'],$key)); $arr['title'] = htmlspecialchars($arr['title'],ENT_COMPAT,'UTF-8',false); if($arr['title']) $arr['title'] = json_encode(crypto_encapsulate($arr['title'],$key)); if($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; } /** * @param object $feed * @param array $item * @param[out] array $author * @return multitype:multitype: string NULL number Ambigous Ambigous Ambigous , multitype:multitype:string unknown > multitype:NULL unknown */ function get_atom_elements($feed, $item, &$author) { //$best_photo = array(); $res = array(); $found_author = $item->get_author(); if($found_author) { $author['author_name'] = unxmlify($found_author->get_name()); $author['author_link'] = unxmlify($found_author->get_link()); $author['author_is_feed'] = false; } else { $author['author_name'] = unxmlify($feed->get_title()); $author['author_link'] = unxmlify($feed->get_permalink()); $author['author_is_feed'] = true; } if(substr($author['author_link'],-1,1) == '/') $author['author_link'] = substr($author['author_link'],0,-1); $res['mid'] = base64url_encode(unxmlify($item->get_id())); $res['title'] = unxmlify($item->get_title()); $res['body'] = unxmlify($item->get_content()); $res['plink'] = unxmlify($item->get_link(0)); $res['item_flags'] = ITEM_RSS; // removing the content of the title if its identically to the body // This helps with auto generated titles e.g. from tumblr if (title_is_body($res["title"], $res["body"])) $res['title'] = ""; if($res['plink']) $base_url = implode('/', array_slice(explode('/',$res['plink']),0,3)); else $base_url = ''; // look for a photo. We should check media size and find the best one, // but for now let's just find any author photo $rawauthor = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author'); if($rawauthor && $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) { $base = $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']; foreach($base as $link) { if(!x($author, 'author_photo') || ! $author['author_photo']) { if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar') $author['author_photo'] = unxmlify($link['attribs']['']['href']); } } } $rawactor = $item->get_item_tags(NAMESPACE_ACTIVITY, 'actor'); if($rawactor && activity_match($rawactor[0]['child'][NAMESPACE_ACTIVITY]['obj_type'][0]['data'],ACTIVITY_OBJ_PERSON)) { $base = $rawactor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']; if($base && count($base)) { foreach($base as $link) { if($link['attribs']['']['rel'] === 'alternate' && (! $res['author_link'])) $author['author_link'] = unxmlify($link['attribs']['']['href']); if(!x($author, 'author_photo') || ! $author['author_photo']) { if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo') $author['author_photo'] = unxmlify($link['attribs']['']['href']); } } } } // check for a yahoo media element (github etc.) if(! $author['author_photo']) { $rawmedia = $item->get_item_tags(NAMESPACE_YMEDIA,'thumbnail'); if($rawmedia && $rawmedia[0]['attribs']['']['url']) { $author['author_photo'] = strip_tags(unxmlify($rawmedia[0]['attribs']['']['url'])); } } // No photo/profile-link on the item - look at the feed level if((! (x($author,'author_link'))) || (! (x($author,'author_photo')))) { $rawauthor = $feed->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author'); if($rawauthor && $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) { $base = $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']; foreach($base as $link) { if($link['attribs']['']['rel'] === 'alternate' && (! $author['author_link'])) { $author['author_link'] = unxmlify($link['attribs']['']['href']); $author['author_is_feed'] = true; } if(! $author['author_photo']) { if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar') $author['author_photo'] = unxmlify($link['attribs']['']['href']); } } } $rawactor = $feed->get_feed_tags(NAMESPACE_ACTIVITY, 'subject'); if($rawactor && activity_match($rawactor[0]['child'][NAMESPACE_ACTIVITY]['obj_type'][0]['data'],ACTIVITY_OBJ_PERSON)) { $base = $rawactor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']; if($base && count($base)) { foreach($base as $link) { if($link['attribs']['']['rel'] === 'alternate' && (! $res['author_link'])) $author['author_link'] = unxmlify($link['attribs']['']['href']); if(! (x($author,'author_photo'))) { if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo') $author['author_photo'] = unxmlify($link['attribs']['']['href']); } } } } } $apps = $item->get_item_tags(NAMESPACE_STATUSNET,'notice_info'); if($apps && $apps[0]['attribs']['']['source']) { $res['app'] = strip_tags(unxmlify($apps[0]['attribs']['']['source'])); } /* * If there's a copy of the body content which is guaranteed to have survived mangling in transit, use it. */ $have_real_body = false; $rawenv = $item->get_item_tags(NAMESPACE_DFRN, 'env'); if($rawenv) { $have_real_body = true; $res['body'] = $rawenv[0]['data']; $res['body'] = str_replace(array(' ',"\t","\r","\n"), array('','','',''),$res['body']); // make sure nobody is trying to sneak some html tags by us $res['body'] = notags(base64url_decode($res['body'])); // We could probably turn these old Friendica bbcode bookmarks into bookmark tags but we'd have to // create a term table item for them. For now just make sure they stay as links. $res['body'] = preg_replace('/\[bookmark(.*?)\](.*?)\[\/bookmark\]/','[url$1]$2[/url]',$res['body']); } $res['body'] = limit_body_size($res['body']); // It isn't certain at this point whether our content is plaintext or html and we'd be foolish to trust // the content type. Our own network only emits text normally, though it might have been converted to // html if we used a pubsubhubbub transport. But if we see even one html tag in our text, we will // have to assume it is all html and needs to be purified. // It doesn't matter all that much security wise - because before this content is used anywhere, we are // going to escape any tags we find regardless, but this lets us import a limited subset of html from // the wild, by sanitising it and converting supported tags to bbcode before we rip out any remaining // html. if((strpos($res['body'],'<') !== false) && (strpos($res['body'],'>') !== false)) { $res['body'] = reltoabs($res['body'],$base_url); $res['body'] = html2bb_video($res['body']); $res['body'] = oembed_html2bbcode($res['body']); $res['body'] = purify_html($res['body']); $res['body'] = @html2bbcode($res['body']); } elseif(! $have_real_body) { // it's not one of our messages and it has no tags // so it's probably just text. We'll escape it just to be safe. $res['body'] = escape_tags($res['body']); } if($res['plink'] && $res['title']) { $res['body'] = '#^[url=' . $res['plink'] . ']' . $res['title'] . '[/url]' . "\n\n" . $res['body']; $terms = array(); $terms[] = array( 'otype' => TERM_OBJ_POST, 'type' => TERM_BOOKMARK, 'url' => $res['plink'], 'term' => $res['title'], ); } elseif($res['plink']) { $res['body'] = '#^[url]' . $res['plink'] . '[/url]' . "\n\n" . $res['body']; $terms = array(); $terms[] = array( 'otype' => TERM_OBJ_POST, 'type' => TERM_BOOKMARK, 'url' => $res['plink'], 'term' => $res['plink'], ); } $private = $item->get_item_tags(NAMESPACE_DFRN,'private'); if($private && intval($private[0]['data']) > 0) $res['item_private'] = ((intval($private[0]['data'])) ? 1 : 0); else $res['item_private'] = 0; $rawlocation = $item->get_item_tags(NAMESPACE_DFRN, 'location'); if($rawlocation) $res['location'] = unxmlify($rawlocation[0]['data']); $rawcreated = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'published'); if($rawcreated) $res['created'] = unxmlify($rawcreated[0]['data']); $rawedited = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'updated'); if($rawedited) $res['edited'] = unxmlify($rawedited[0]['data']); if((x($res,'edited')) && (! (x($res,'created')))) $res['created'] = $res['edited']; if(! $res['created']) $res['created'] = $item->get_date('c'); if(! $res['edited']) $res['edited'] = $item->get_date('c'); // Disallow time travelling posts $d1 = strtotime($res['created']); $d2 = strtotime($res['edited']); $d3 = strtotime('now'); if($d1 > $d3) $res['created'] = datetime_convert(); if($d2 > $d3) $res['edited'] = datetime_convert(); $res['created'] = datetime_convert('UTC','UTC',$res['created']); $res['edited'] = datetime_convert('UTC','UTC',$res['edited']); $rawowner = $item->get_item_tags(NAMESPACE_DFRN, 'owner'); if(! $rawowner) $rawowner = $item->get_item_tags(NAMESPACE_ZOT,'owner'); if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']) $author['owner_name'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']); elseif($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data']) $author['owner_name'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data']); if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']) $author['owner_link'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']); elseif($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data']) $author['owner_link'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data']); if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) { $base = $rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']; foreach($base as $link) { if(!x($author, 'owner_photo') || ! $author['owner_photo']) { if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar') $author['owner_photo'] = unxmlify($link['attribs']['']['href']); } } } $rawgeo = $item->get_item_tags(NAMESPACE_GEORSS,'point'); if($rawgeo) $res['coord'] = unxmlify($rawgeo[0]['data']); $rawverb = $item->get_item_tags(NAMESPACE_ACTIVITY, 'verb'); // select between supported verbs if($rawverb) { $res['verb'] = unxmlify($rawverb[0]['data']); } // translate OStatus unfollow to activity streams if it happened to get selected if((x($res,'verb')) && ($res['verb'] === 'http://ostatus.org/schema/1.0/unfollow')) $res['verb'] = ACTIVITY_UNFOLLOW; $cats = $item->get_categories(); if($cats) { if(is_null($terms)) $terms = array(); foreach($cats as $cat) { $term = $cat->get_term(); if(! $term) $term = $cat->get_label(); $scheme = $cat->get_scheme(); $termurl = ''; if($scheme && $term && stristr($scheme,'X-DFRN:')) { $termtype = ((substr($scheme,7,1) === '#') ? TERM_HASHTAG : TERM_MENTION); $termurl = unxmlify(substr($scheme,9)); } else { $termtype = TERM_CATEGORY; } $termterm = notags(trim(unxmlify($term))); if($termterm) { $terms[] = array( 'otype' => TERM_OBJ_POST, 'type' => $termtype, 'url' => $termurl, 'term' => $termterm, ); } } } if(! is_null($terms)) $res['term'] = $terms; $attach = $item->get_enclosures(); if($attach) { $res['attach'] = array(); foreach($attach as $att) { $len = intval($att->get_length()); $link = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_link())))); $title = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_title())))); $type = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_type())))); if(strpos($type,';')) $type = substr($type,0,strpos($type,';')); if((! $link) || (strpos($link,'http') !== 0)) continue; if(! $title) $title = ' '; if(! $type) $type = 'application/octet-stream'; $res['attach'][] = array('href' => $link, 'length' => $len, 'type' => $type, 'title' => $title ); } } $rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'object'); if($rawobj) { $obj = array(); $child = $rawobj[0]['child']; if($child[NAMESPACE_ACTIVITY]['obj_type'][0]['data']) { $res['obj_type'] = $child[NAMESPACE_ACTIVITY]['obj_type'][0]['data']; $obj['type'] = $child[NAMESPACE_ACTIVITY]['obj_type'][0]['data']; } if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'id') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data']) $obj['id'] = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data']; if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'link') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['link']) $obj['link'] = encode_rel_links($child[SIMPLEPIE_NAMESPACE_ATOM_10]['link']); if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'title') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data']) $obj['title'] = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data']; if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'content') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']) { $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']; if(! $body) $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['summary'][0]['data']; // preserve a copy of the original body content in case we later need to parse out any microformat information, e.g. events $obj['orig'] = xmlify($body); if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) { $body = purify_html($body); $body = html2bbcode($body); } $obj['content'] = $body; } $res['object'] = $obj; } $rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'target'); if($rawobj) { $obj = array(); $child = $rawobj[0]['child']; if($child[NAMESPACE_ACTIVITY]['obj_type'][0]['data']) { $res['tgt_type'] = $child[NAMESPACE_ACTIVITY]['obj_type'][0]['data']; $obj['type'] = $child[NAMESPACE_ACTIVITY]['obj_type'][0]['data']; } if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'id') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data']) $obj['id'] = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data']; if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'link') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['link']) $obj['link'] = encode_rel_links($child[SIMPLEPIE_NAMESPACE_ATOM_10]['link']); if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'title') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data']) $obj['title'] = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data']; if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'content') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']) { $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']; if(! $body) $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['summary'][0]['data']; // preserve a copy of the original body content in case we later need to parse out any microformat information, e.g. events $obj['orig'] = xmlify($body); if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) { $body = purify_html($body); $body = html2bbcode($body); } $obj['content'] = $body; } $res['target'] = $obj; } $res['public_policy'] = 'specific'; $res['comment_policy'] = 'none'; $arr = array('feed' => $feed, 'item' => $item, 'result' => $res); call_hooks('parse_atom', $arr); logger('get_atom_elements: author: ' . print_r($author,true),LOGGER_DATA); logger('get_atom_elements: ' . print_r($res,true),LOGGER_DATA); return $res; } function encode_rel_links($links) { $o = ''; if(! ((is_array($links)) && (count($links)))) return $o; foreach($links as $link) { $o .= ' $arr, 'allow_exec' => $allow_exec); call_hooks('item_store', $d ); $arr = $d['item']; $allow_exec = $d['allow_exec']; $ret = array('success' => false, 'item_id' => 0); 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']) { $l = q("select item_restrict from item where mid = '%s' and uid = %d limit 1", dbesc($arr['layout_mid']), intval($arr['uid']) ); if((! $l) || (! ($l[0]['item_restrict'] & ITEM_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']) : ''); $arr['diaspora_meta'] = ((x($arr,'diaspora_meta')) ? $arr['diaspora_meta'] : ''); $arr['allow_cid'] = ((x($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']) : ''); $arr['item_private'] = ((x($arr,'item_private')) ? intval($arr['item_private']) : 0 ); $arr['item_flags'] = ((x($arr,'item_flags')) ? intval($arr['item_flags']) : 0 ); // only detect language if we have text content, and if the post is private but not yet // obscured, make it so. if(! ($arr['item_flags'] & ITEM_OBSCURED)) { $arr['lang'] = detect_language($arr['body']); // apply the input filter here - if it is obscured it has been filtered already $arr['body'] = z_input_filter($arr['uid'],$arr['body'],$arr['mimetype']); if(local_channel() && (! $arr['sig'])) { $channel = get_app()->get_channel(); if($channel['channel_hash'] === $arr['author_xchan']) { $arr['sig'] = base64url_encode(rsa_sign($arr['body'],$channel['channel_prvkey'])); $arr['item_flags'] |= ITEM_VERIFIED; } } $allowed_languages = get_pconfig($arr['uid'],'system','allowed_languages'); if((is_array($allowed_languages)) && ($arr['lang']) && (! array_key_exists($arr['lang'],$allowed_languages))) { $translate = array('item' => $arr, 'from' => $arr['lang'], 'to' => $allowed_languages, 'translated' => false); 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 = $translate['item']; } if($arr['item_private']) { $key = get_config('system','pubkey'); $arr['item_flags'] = $arr['item_flags'] | ITEM_OBSCURED; if($arr['title']) $arr['title'] = json_encode(crypto_encapsulate($arr['title'],$key)); if($arr['body']) $arr['body'] = json_encode(crypto_encapsulate($arr['body'],$key)); } } if((x($arr,'object')) && is_array($arr['object'])) { activity_sanitise($arr['object']); $arr['object'] = json_encode($arr['object']); } 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()); $arr['author_xchan'] = ((x($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['received'] = datetime_convert(); $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); $arr['object'] = ((x($arr,'object')) ? trim($arr['object']) : ''); $arr['tgt_type'] = ((x($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'])) : ''); $arr['item_restrict'] = ((x($arr,'item_restrict')) ? intval($arr['item_restrict']) : 0 ); $arr['public_policy'] = ((x($arr,'public_policy')) ? notags(trim($arr['public_policy'])) : '' ); $arr['comment_policy'] = ((x($arr,'comment_policy')) ? notags(trim($arr['comment_policy'])) : 'contacts' ); $arr['item_unseen'] = ((array_key_exists('item_unseen',$arr)) ? intval($arr['item_unseen']) : 1); if($arr['comment_policy'] == 'none') $arr['item_flags'] = $arr['item_flags'] | ITEM_NOCOMMENT; // 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_restrict'] = $arr['item_restrict'] | ITEM_DELAYED_PUBLISH; $arr['llink'] = z_root() . '/display/' . $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_flags'] = $arr['item_flags'] | ITEM_THREAD_TOP; } 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) $arr['obj_type'] = ACTIVITY_OBJ_COMMENT; // is the new message multi-level threaded? // even though we don't support it now, preserve the info // and re-attach to the conversation parent. if($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_restrict'] & 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 = $r[0]['comments_closed']; if($r[0]['item_flags'] & ITEM_WALL) $arr['item_flags'] = $arr['item_flags'] | ITEM_WALL; // An uplinked comment might arrive with a downstream owner. // Fix it. if($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_flags']) & 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_restrict'] = $arr['item_restrict'] | ITEM_DELETED; $r = q("SELECT `id` FROM `item` WHERE `mid` = '%s' AND `uid` = %d LIMIT 1", dbesc($arr['mid']), intval($arr['uid']) ); if($r) { logger('item_store: duplicate item ignored. ' . print_r($arr,true)); $ret['message'] = 'duplicate post.'; return $ret; } call_hooks('item_store',$arr); // This hook remains for backward compatibility. call_hooks('post_remote',$arr); if(x($arr,'cancel')) { logger('item_store: 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']); } 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); dbesc_array($arr); $r = dbq("INSERT INTO `item` (`" . implode("`, `", array_keys($arr)) . "`) VALUES ('" . implode("', '", array_values($arr)) . "')" ); // find the item we just created $r = q("SELECT * FROM `item` WHERE `mid` = '%s' AND `uid` = %d ORDER BY `id` ASC ", $arr['mid'], // already dbesc'd intval($arr['uid']) ); if($r && count($r)) { $current_post = $r[0]['id']; $arr = $r[0]; // 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 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']) ); } // Store taxonomy if(($terms) && (is_array($terms))) { foreach($terms as $t) { q("insert into term (uid,oid,otype,type,term,url) values(%d,%d,%d,%d,'%s','%s') ", intval($arr['uid']), intval($current_post), intval(TERM_OBJ_POST), intval($t['type']), dbesc($t['term']), dbesc($t['url']) ); } $arr['term'] = $terms; } call_hooks('post_remote_end',$arr); // update the commented timestamp on the parent $z = q("select max(created) as commented from item where parent_mid = '%s' and uid = %d and not ( item_restrict & %d )>0 ", dbesc($arr['parent_mid']), intval($arr['uid']), intval(ITEM_DELAYED_PUBLISH) ); q("UPDATE item set commented = '%s', changed = '%s' WHERE id = %d", dbesc(($z) ? $z[0]['commented'] : (datetime_convert())), dbesc(datetime_convert()), intval($parent_id) ); // 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(! ($arr['item_restrict'] & ITEM_DELETED)) { send_status_notifications($current_post,$arr); tag_deliver($arr['uid'],$current_post); } $ret['success'] = true; $ret['item_id'] = $current_post; return $ret; } function item_store_update($arr,$allow_exec = false) { $d = array('item' => $arr, 'allow_exec' => $allow_exec); call_hooks('item_store_update', $d ); $arr = $d['item']; $allow_exec = $d['allow_exec']; $ret = array('success' => false, 'item_id' => 0); if(! intval($arr['uid'])) { logger('item_store_update: no uid'); $ret['message'] = 'no uid.'; return $ret; } if(! intval($arr['id'])) { logger('item_store_update: 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('item_store_update: original post not found: ' . $orig_post_id); $ret['message'] = 'no original'; return $ret; } // override the unseen flag with the original if(intval($arr['item_flags'])) $arr['item_unseen'] = 0; if($orig[0]['item_flags'] & ITEM_VERIFIED) $orig[0]['item_flags'] = $orig[0]['item_flags'] ^ ITEM_VERIFIED; if($orig[0]['item_flags'] & ITEM_OBSCURED) $orig[0]['item_flags'] = $orig[0]['item_flags'] ^ ITEM_OBSCURED; $arr['item_flags'] = intval($arr['item_flags']) | $orig[0]['item_flags']; $arr['item_restrict'] = intval($arr['item_restrict']) | $orig[0]['item_restrict']; if(array_key_exists('edit',$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 $ret; } if(! ($arr['item_flags'] & ITEM_OBSCURED)) { $arr['lang'] = detect_language($arr['body']); // apply the input filter here - if it is obscured it has been filtered already $arr['body'] = z_input_filter($arr['uid'],$arr['body'],$arr['mimetype']); if(local_channel() && (! $arr['sig'])) { $channel = get_app()->get_channel(); if($channel['channel_hash'] === $arr['author_xchan']) { $arr['sig'] = base64url_encode(rsa_sign($arr['body'],$channel['channel_prvkey'])); $arr['item_flags'] |= ITEM_VERIFIED; } } $allowed_languages = get_pconfig($arr['uid'],'system','allowed_languages'); if((is_array($allowed_languages)) && ($arr['lang']) && (! array_key_exists($arr['lang'],$allowed_languages))) { $translate = array('item' => $arr, 'from' => $arr['lang'], 'to' => $allowed_languages, 'translated' => false); 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 = $translate['item']; } if($arr['item_private']) { $key = get_config('system','pubkey'); $arr['item_flags'] = $arr['item_flags'] | ITEM_OBSCURED; if($arr['title']) $arr['title'] = json_encode(crypto_encapsulate($arr['title'],$key)); if($arr['body']) $arr['body'] = json_encode(crypto_encapsulate($arr['body'],$key)); } } if((x($arr,'object')) && is_array($arr['object'])) { activity_sanitise($arr['object']); $arr['object'] = json_encode($arr['object']); } 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']); } 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['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']) : $orig[0]['expires']); if(array_key_exists('comments_closed',$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'] = datetime_convert(); $arr['changed'] = datetime_convert(); $arr['route'] = ((array_key_exists('route',$arr)) ? trim($arr['route']) : $orig[0]['route']); $arr['diaspora_meta'] = ((x($arr,'diaspora_meta')) ? $arr['diaspora_meta'] : $orig[0]['diaspora_meta']); $arr['location'] = ((x($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']); $arr['object'] = ((x($arr,'object')) ? trim($arr['object']) : $orig[0]['object']); $arr['tgt_type'] = ((x($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']) : ''); $arr['attach'] = ((x($arr,'attach')) ? notags(trim($arr['attach'])) : $orig[0]['attach']); $arr['app'] = ((x($arr,'app')) ? notags(trim($arr['app'])) : $orig[0]['app']); // $arr['item_restrict'] = ((x($arr,'item_restrict')) ? intval($arr['item_restrict']) : $orig[0]['item_restrict'] ); // $arr['item_flags'] = ((x($arr,'item_flags')) ? intval($arr['item_flags']) : $orig[0]['item_flags'] ); $arr['sig'] = ((x($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'])) : $orig[0]['comment_policy'] ); call_hooks('post_remote_update',$arr); if(x($arr,'cancel')) { logger('item_store_update: 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']); } dbesc_array($arr); logger('item_store_update: ' . print_r($arr,true), LOGGER_DATA); $str = ''; foreach($arr as $k => $v) { if($str) $str .= ","; $str .= " `" . $k . "` = '" . $v . "' "; } $r = dbq("update `item` set " . $str . " where id = " . $orig_post_id ); if($r) logger('item_store_update: updated item ' . $orig_post_id, LOGGER_DEBUG); else { logger('item_store_update: could not update item'); $ret['message'] = 'DB update failed.'; return $ret; } $r = q("delete from term where oid = %d and otype = %d", intval($orig_post_id), intval(TERM_OBJ_POST) ); if(($terms) && (is_array($terms))) { foreach($terms as $t) { q("insert into term (uid,oid,otype,type,term,url) values(%d,%d,%d,%d,'%s','%s') ", intval($uid), intval($orig_post_id), intval(TERM_OBJ_POST), intval($t['type']), dbesc($t['term']), dbesc($t['url']) ); } $arr['term'] = $terms; } call_hooks('post_remote_update_end',$arr); send_status_notifications($orig_post_id,$arr); tag_deliver($uid,$orig_post_id); $ret['success'] = true; $ret['item_id'] = $orig_post_id; return $ret; } function store_diaspora_comment_sig($datarray, $channel, $parent_item, $post_id, $walltowall = false) { // We won't be able to sign Diaspora comments for authenticated visitors // - we don't have their private key // since Diaspora doesn't handle edits we can only do this for the original text and not update it. require_once('include/bb2diaspora.php'); $signed_body = bb2diaspora_itembody($datarray,$walltowall); if($walltowall) { logger('wall to wall comment',LOGGER_DEBUG); // post will come across with the owner's identity. Throw a preamble onto the post to indicate the true author. $signed_body = "\n\n" . '![' . $datarray['author']['xchan_name'] . '](' . $datarray['author']['xchan_photo_m'] . ')' . '[' . $datarray['author']['xchan_name'] . '](' . $datarray['author']['xchan_url'] . ')' . "\n\n" . $signed_body; } logger('storing diaspora comment signature',LOGGER_DEBUG); $diaspora_handle = $channel['channel_address'] . '@' . get_app()->get_hostname(); $signed_text = $datarray['mid'] . ';' . $parent_item['mid'] . ';' . $signed_body . ';' . $diaspora_handle; /** @FIXME $uprvkey is undefined, do we still need this if-statement? */ if( $uprvkey !== false ) $authorsig = base64_encode(rsa_sign($signed_text, $channel['channel_prvkey'], 'sha256')); else $authorsig = ''; $x = array('signer' => $diaspora_handle, 'body' => $signed_body, 'signed_text' => $signed_text, 'signature' => base64_encode($authorsig)); $key = get_config('system','pubkey'); $y = crypto_encapsulate(json_encode($x),$key); $r = q("update item set diaspora_meta = '%s' where id = %d", dbesc(json_encode($y)), intval($post_id) ); if(! $r) logger('store_diaspora_comment_sig: DB write failed'); return; } function send_status_notifications($post_id,$item) { $notify = false; $parent = 0; $r = q("select channel_hash from channel where channel_id = %d limit 1", intval($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']) { $notify = true; } if($xx['id'] == $xx['parent']) { $parent = $xx['parent']; } } } $link = get_app()->get_baseurl() . '/display/' . $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; require_once('include/enotify.php'); notification(array( 'type' => NOTIFY_COMMENT, 'from_xchan' => $item['author_xchan'], 'to_xchan' => $r[0]['channel_hash'], 'item' => $item, 'link' => $link, 'verb' => ACTIVITY_POST, 'otype' => 'item', 'parent' => $parent, 'parent_mid' => $item['parent_mid'] )); } function get_item_contact($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']) && ($item['item_flags'] & ITEM_UPLINK) && ($item['item_flags'] & ITEM_THREAD_TOP) && ($item['edited'] != $item['created'])) { // this is an update (edit) to a post which was already processed by us and has a second delivery chain // Just start the second delivery chain to deliver the updated post proc_run('php','include/notifier.php','tgroup',$item['id']); 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['object'])) $poke_notify = false; $obj = json_decode_plus($item['object']); if($obj) { if($obj['id'] !== $u[0]['channel_hash']) $poke_notify = false; } if($item['item_restrict'] & ITEM_DELETED) $poke_notify = false; $verb = urldecode(substr($item['verb'],strpos($item['verb'],'#')+1)); if($poke_notify) { require_once('include/enotify.php'); notification(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) { // 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'); if(($item['owner_xchan'] === $u[0]['channel_hash']) && (! get_pconfig($u[0]['channel_id'],'system','blocktags'))) { logger('tag_deliver: community tag recipient: ' . $u[0]['channel_name']); $j_tgt = json_decode_plus($item['target']); if($j_tgt && $j_tgt['id']) { $p = q("select * from item where mid = '%s' and uid = %d limit 1", dbesc($j_tgt['id']), intval($u[0]['channel_id']) ); if($p) { $j_obj = json_decode_plus($item['object']); logger('tag_deliver: tag object: ' . print_r($j_obj,true), LOGGER_DATA); if($j_obj && $j_obj['id'] && $j_obj['title']) { if(is_array($j_obj['link'])) $taglink = get_rel_link($j_obj['link'],'alternate'); store_item_tag($u[0]['channel_id'],$p[0]['id'],TERM_OBJ_POST,TERM_HASHTAG,$j_obj['title'],$j_obj['id']); $x = q("update item set edited = '%s', received = '%s', changed = '%s' where mid = '%s' and uid = %d", dbesc(datetime_convert()), dbesc(datetime_convert()), dbesc(datetime_convert()), dbesc($j_tgt['id']), intval($u[0]['channel_id']) ); proc_run('php','include/notifier.php','edit_post',$p[0]['id']); } } } } else logger('tag_deliver: tag permission denied for ' . $u[0]['channel_address']); } /* * 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( ! ($item['item_flags'] & 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) && ($x[0]['item_flags'] & ITEM_UPLINK)) { start_delivery_chain($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 */ $terms = get_terms_oftype($item['term'],TERM_MENTION); if($terms) logger('tag_deliver: post mentions: ' . print_r($terms,true), LOGGER_DATA); $link = normalise_link($u[0]['xchan_url']); if($terms) { foreach($terms as $term) { if(link_compare($term['url'],$link)) { $mention = true; break; } } } if($mention) { logger('tag_deliver: mention found for ' . $u[0]['channel_name']); $r = q("update item set item_flags = ( item_flags | %d ) where id = %d", intval(ITEM_MENTIONSME), intval($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. $body = ''; if($item['item_flags'] & ITEM_OBSCURED) { $key = get_config('system','prvkey'); if($item['body']) $body = crypto_unencapsulate(json_decode_plus($item['body']),$key); } else $body = $item['body']; $body = preg_replace('/\[share(.*?)\[\/share\]/','',$body); $tagged = false; $plustagged = false; $matches = array(); $pattern = '/@\!?\[zrl\=' . preg_quote($term['url'],'/') . '\]' . preg_quote($term['term'],'/') . '\[\/zrl\]/'; if(preg_match($pattern,$body,$matches)) $tagged = true; $pattern = '/@\!?\[zrl\=([^\]]*?)\]((?:.(?!\[zrl\=))*?)\+\[\/zrl\]/'; if(preg_match_all($pattern,$body,$matches,PREG_SET_ORDER)) { $max_forums = get_config('system','max_tagged_forums'); if(! $max_forums) $max_forums = 2; $matched_forums = 0; foreach($matches as $match) { $matched_forums ++; if($term['url'] === $match[1] && $term['term'] === $match[2]) { if($matched_forums <= $max_forums) { $plustagged = true; break; } logger('forum ' . $term['term'] . ' exceeded max_tagged_forums - ignoring'); } } } if(! ($tagged || $plustagged)) { logger('tag_deliver: mention was in a reshare or exceeded max_tagged_forums - ignoring'); return; } $arr = array('channel_id' => $uid, 'item' => $item, 'body' => $body); call_hooks('tagged',$arr); /* * Kill two birds with one stone. As long as we're here, send a mention notification. */ require_once('include/enotify.php'); notification(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(! $plustagged) { logger('tag_deliver: not a plus tag', LOGGER_DEBUG); return; } // plustagged - keep going, next check permissions if(! perm_is_allowed($uid,$item['author_xchan'],'tag_deliver')) { logger('tag_delivery denied for uid ' . $uid . ' and xchan ' . $item['author_xchan']); return; } } if((! $mention) && (! $union)) { logger('tag_deliver: no mention and no union.'); return; } // tgroup delivery - setup a second delivery chain // prevent delivery looping - only proceed // if the message originated elsewhere and is a top-level post if(($item['item_flags'] & ITEM_WALL) || ($item['item_flags'] & ITEM_ORIGIN) || (!($item['item_flags'] & ITEM_THREAD_TOP)) || ($item['id'] != $item['parent'])) { logger('tag_deliver: item was local or a comment. rejected.'); return; } logger('tag_deliver: creating second delivery chain.'); start_delivery_chain($u[0],$item,$item_id,null); } /** * @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. */ 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']) { $r = q("select id from item where mid = '%s' and uid = %d and ( item_flags & %d )>0 limit 1", dbesc($item['parent_mid']), intval($uid), intval(ITEM_UPLINK) ); if($r) return true; return false; } 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; $terms = get_terms_oftype($item['term'],TERM_MENTION); if($terms) logger('tgroup_check: post mentions: ' . print_r($terms,true), LOGGER_DATA); $link = normalise_link($u[0]['xchan_url']); if($terms) { foreach($terms as $term) { if(link_compare($term['url'],$link)) { $mention = true; break; } } } if($mention) { logger('tgroup_check: mention found for ' . $u[0]['channel_name']); } else return false; // 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 = $item['body']; if(array_key_exists('item_flags',$item) && ($item['item_flags'] & ITEM_OBSCURED) && $body) { $key = get_config('system','prvkey'); $body = crypto_unencapsulate(json_decode($body,true),$key); } $body = preg_replace('/\[share(.*?)\[\/share\]/','',$body); // $pattern = '/@\!?\[zrl\=' . preg_quote($term['url'],'/') . '\]' . preg_quote($term['term'] . '+','/') . '\[\/zrl\]/'; $pattern = '/@\!?\[zrl\=([^\]]*?)\]((?:.(?!\[zrl\=))*?)\+\[\/zrl\]/'; $found = false; $matches = array(); if(preg_match_all($pattern,$body,$matches,PREG_SET_ORDER)) { $max_forums = get_config('system','max_tagged_forums'); if(! $max_forums) $max_forums = 2; $matched_forums = 0; foreach($matches as $match) { $matched_forums ++; if($term['url'] === $match[1] && $term['term'] === $match[2]) { if($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'); return false; } return true; } /** * 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) { // 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); $new_public_policy = map_scope($channel['channel_r_stream'],true); if((! $private) && $new_public_policy) $private = 1; $flag_bits = $item['item_flags'] | ITEM_WALL; // The message didn't necessarily originate on this site, (we'll honour it if it did), // but the parent post of this thread will be reset as a local post, as it is the top of // this delivery chain and is coming from this site, regardless of where the original // originated. if(! $parent) $flag_bits = $flag_bits | ITEM_ORIGIN; // unset the nocomment bit if it's there. if($flag_bits & ITEM_NOCOMMENT) $flag_bits = $flag_bits ^ ITEM_NOCOMMENT; // maintain the original source, which will be the original item owner and was stored in source_xchan // when we created the delivery fork if($parent) { $r = q("update item set source_xchan = '%s' where id = %d", dbesc($parent['source_xchan']), intval($item_id) ); } else { $flag_bits = $flag_bits | ITEM_UPLINK; $r = q("update item set source_xchan = owner_xchan where id = %d", intval($item_id) ); } $title = $item['title']; $body = $item['body']; if($private) { if(!($flag_bits & ITEM_OBSCURED)) { $key = get_config('system','pubkey'); $flag_bits = $flag_bits|ITEM_OBSCURED; if($title) $title = json_encode(crypto_encapsulate($title,$key)); if($body) $body = json_encode(crypto_encapsulate($body,$key)); } } else { if($flag_bits & ITEM_OBSCURED) { $key = get_config('system','prvkey'); $flag_bits = $flag_bits ^ ITEM_OBSCURED; if($title) $title = crypto_unencapsulate(json_decode($title,true),$key); if($body) $body = crypto_unencapsulate(json_decode($body,true),$key); } } $r = q("update item set item_flags = %d, owner_xchan = '%s', allow_cid = '%s', allow_gid = '%s', deny_cid = '%s', deny_gid = '%s', item_private = %d, public_policy = '%s', comment_policy = '%s', title = '%s', body = '%s' where id = %d", intval($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($new_public_policy), dbesc(map_scope($channel['channel_w_comment'])), dbesc($title), dbesc($body), intval($item_id) ); if($r) proc_run('php','include/notifier.php','tgroup',$item_id); else logger('start_delivery_chain: failed to update item'); } /** * @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) { $r = q("select * from source where src_channel_id = %d and ( src_xchan = '%s' or src_xchan = '*' ) limit 1", intval($uid), dbesc(($item['source_xchan']) ? $item['source_xchan'] : $item['owner_xchan']) ); if(! $r) return false; $x = q("select abook_their_perms, abook_flags from abook where abook_channel = %d and abook_xchan = '%s' limit 1", intval($uid), dbesc($item['owner_xchan']) ); if(! $x) return false; if(! ($x[0]['abook_their_perms'] & PERMS_A_REPUBLISH)) return false; if($item['item_private'] && (! ($x[0]['abook_flags'] & ABOOK_FLAG_FEED))) return false; if($r[0]['src_channel_xchan'] === $item['owner_xchan']) return false; if(! $r[0]['src_patt']) return true; require_once('include/html2plain.php'); $text = prepare_text($item['body'],$item['mimetype']); $text = html2plain($text); /** @BUG $items is undefined, should this be $item? */ $tags = ((count($items['term'])) ? $items['term'] : false); $words = explode("\n",$r[0]['src_patt']); if($words) { foreach($words as $word) { if(substr($word,0,1) === '#' && $tags) { foreach($tags as $t) if(($t['type'] == TERM_HASHTAG) && ((substr($t,1) === substr($word,1)) || (substr($word,1) === '*'))) return true; } if(stristr($text,$word) !== false) return true; } } return false; } function mail_store($arr) { if(! $arr['channel_id']) { logger('mail_store: no uid'); return 0; } if((strpos($arr['body'],'<') !== false) || (strpos($arr['body'],'>') !== false)) $arr['body'] = escape_tags($arr['body']); if(array_key_exists('attach',$arr) && is_array($arr['attach'])) $arr['attach'] = json_encode($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')) ? notags(trim($arr['title'])) : ''); $arr['parent_mid'] = ((x($arr,'parent_mid')) ? notags(trim($arr['parent_mid'])) : ''); $arr['body'] = ((x($arr,'body')) ? trim($arr['body']) : ''); $arr['mail_flags'] = ((x($arr,'mail_flags')) ? intval($arr['mail_flags']) : 0 ); if(! $arr['parent_mid']) { logger('mail_store: missing parent'); $arr['parent_mid'] = $arr['mid']; } $r = q("SELECT `id` FROM mail WHERE `mid` = '%s' AND channel_id = %d LIMIT 1", dbesc($arr['mid']), intval($arr['channel_id']) ); if($r) { logger('mail_store: duplicate item ignored. ' . print_r($arr,true)); return 0; } call_hooks('post_mail',$arr); if(x($arr,'cancel')) { logger('mail_store: post cancelled by plugin.'); return 0; } dbesc_array($arr); logger('mail_store: ' . print_r($arr,true), LOGGER_DATA); $r = dbq("INSERT INTO mail (`" . implode("`, `", array_keys($arr)) . "`) VALUES ('" . implode("', '", array_values($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('mail_store: created item ' . $current_post, LOGGER_DEBUG); $arr['id'] = $current_post; // for notification } else { logger('mail_store: could not locate created item'); return 0; } if(count($r) > 1) { logger('mail_store: 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 { require_once('include/enotify.php'); $notif_params = array( 'from_xchan' => $arr['from_xchan'], 'to_xchan' => $arr['to_xchan'], 'type' => NOTIFY_MAIL, 'item' => $arr, 'verb' => ACTIVITY_POST, 'otype' => 'mail' ); notification($notif_params); } call_hooks('post_mail_end',$arr); return $current_post; } /** * @brief Process atom feed and update anything/everything we might need to update. * * $hub = should we find a hub declation in the feed, pass it back to our calling process, who might (or * might not) try and subscribe to it. * $datedir sorts in reverse order * * @param array $xml * The (atom) feed to consume - RSS isn't as fully supported but may work for simple feeds. * @param $importer * The contact_record (joined to user_record) of the local user who owns this * relationship. It is this person's stuff that is going to be updated. * @param $contact * The person who is sending us stuff. If not set, we MAY be processing a "follow" activity * from an external network and MAY create an appropriate contact record. Otherwise, we MUST * have a contact record. * @param int $pass by default ($pass = 0) we cannot guarantee that a parent item has been * imported prior to its children being seen in the stream unless we are certain * of how the feed is arranged/ordered. * * With $pass = 1, we only pull parent items out of the stream. * * With $pass = 2, we only pull children (comments/likes). * * So running this twice, first with pass 1 and then with pass 2 will do the right * thing regardless of feed ordering. This won't be adequate in a fully-threaded * model where comments can have sub-threads. That would require some massive sorting * to get all the feed items into a mostly linear ordering, and might still require * recursion. */ function consume_feed($xml, $importer, &$contact, $pass = 0) { require_once('library/simplepie/simplepie.inc'); if(! strlen($xml)) { logger('consume_feed: empty input'); return; } $feed = new SimplePie(); $feed->set_raw_data($xml); $feed->init(); if($feed->error()) logger('consume_feed: Error parsing XML: ' . $feed->error()); $permalink = $feed->get_permalink(); // Check at the feed level for updated contact name and/or photo // process any deleted entries $del_entries = $feed->get_feed_tags(NAMESPACE_TOMB, 'deleted-entry'); if(is_array($del_entries) && count($del_entries) && $pass != 2) { foreach($del_entries as $dentry) { $deleted = false; if(isset($dentry['attribs']['']['ref'])) { $mid = $dentry['attribs']['']['ref']; $deleted = true; if(isset($dentry['attribs']['']['when'])) { $when = $dentry['attribs']['']['when']; $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s'); } else $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s'); } if($deleted && is_array($contact)) { $r = q("SELECT * from item where mid = '%s' and author_xchan = '%s' and uid = %d limit 1", dbesc(base64url_encode($mid)), dbesc($contact['xchan_hash']), intval($importer['channel_id']) ); if($r) { $item = $r[0]; if(! ($item['item_restrict'] & ITEM_DELETED)) { logger('consume_feed: deleting item ' . $item['id'] . ' mid=' . base64url_decode($item['mid']), LOGGER_DEBUG); drop_item($item['id'],false); } } } } } // Now process the feed if($feed->get_item_quantity()) { logger('consume_feed: feed item count = ' . $feed->get_item_quantity(), LOGGER_DEBUG); $items = $feed->get_items(); foreach($items as $item) { $is_reply = false; $item_id = base64url_encode($item->get_id()); logger('consume_feed: processing ' . $item_id, LOGGER_DEBUG); $rawthread = $item->get_item_tags( NAMESPACE_THREAD,'in-reply-to'); if(isset($rawthread[0]['attribs']['']['ref'])) { $is_reply = true; $parent_mid = base64url_encode($rawthread[0]['attribs']['']['ref']); } if($is_reply) { if($pass == 1) continue; // Have we seen it? If not, import it. $item_id = base64url_encode($item->get_id()); $author = array(); $datarray = get_atom_elements($feed,$item,$author); if((! x($author,'author_name')) || ($author['author_is_feed'])) $author['author_name'] = $contact['xchan_name']; if((! x($author,'author_link')) || ($author['author_is_feed'])) $author['author_link'] = $contact['xchan_url']; if((! x($author,'author_photo'))|| ($author['author_is_feed'])) $author['author_photo'] = $contact['xchan_photo_m']; $datarray['author_xchan'] = ''; if($author['author_link'] != $contact['xchan_url']) { $x = import_author_unknown(array('name' => $author['author_name'],'url' => $author['author_link'],'photo' => array('src' => $author['author_photo']))); if($x) $datarray['author_xchan'] = $x; } if(! $datarray['author_xchan']) $datarray['author_xchan'] = $contact['xchan_hash']; $datarray['owner_xchan'] = $contact['xchan_hash']; $r = q("SELECT edited FROM item WHERE mid = '%s' AND uid = %d LIMIT 1", dbesc($item_id), intval($importer['channel_id']) ); // Update content if 'updated' changes if($r) { if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) { // do not accept (ignore) an earlier edit than one we currently have. if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited']) continue; update_feed_item($importer['channel_id'],$datarray); } continue; } $datarray['parent_mid'] = $parent_mid; $datarray['uid'] = $importer['channel_id']; logger('consume_feed: ' . print_r($datarray,true),LOGGER_DATA); $xx = item_store($datarray); $r = $xx['item_id']; continue; } else { // Head post of a conversation. Have we seen it? If not, import it. $item_id = base64url_encode($item->get_id()); $author = array(); $datarray = get_atom_elements($feed,$item,$author); if(is_array($contact)) { if((! x($author,'author_name')) || ($author['author_is_feed'])) $author['author_name'] = $contact['xchan_name']; if((! x($author,'author_link')) || ($author['author_is_feed'])) $author['author_link'] = $contact['xchan_url']; if((! x($author,'author_photo'))|| ($author['author_is_feed'])) $author['author_photo'] = $contact['xchan_photo_m']; } if((! x($author,'author_name')) || (! x($author,'author_link'))) { logger('consume_feed: no author information! ' . print_r($author,true)); continue; } $datarray['author_xchan'] = ''; if($author['author_link'] != $contact['xchan_url']) { $x = import_author_unknown(array('name' => $author['author_name'],'url' => $author['author_link'],'photo' => array('src' => $author['author_photo']))); if($x) $datarray['author_xchan'] = $x; } if(! $datarray['author_xchan']) $datarray['author_xchan'] = $contact['xchan_hash']; $datarray['owner_xchan'] = $contact['xchan_hash']; $r = q("SELECT edited FROM item WHERE mid = '%s' AND uid = %d LIMIT 1", dbesc($item_id), intval($importer['channel_id']) ); // Update content if 'updated' changes if($r) { if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) { // do not accept (ignore) an earlier edit than one we currently have. if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited']) continue; update_feed_item($importer['channel_id'],$datarray); } continue; } $datarray['parent_mid'] = $item_id; $datarray['uid'] = $importer['channel_id']; if(! link_compare($author['owner_link'],$contact['xchan_url'])) { logger('consume_feed: Correcting item owner.', LOGGER_DEBUG); $author['owner_name'] = $contact['name']; $author['owner_link'] = $contact['url']; $author['owner_avatar'] = $contact['thumb']; } logger('consume_feed: author ' . print_r($author,true),LOGGER_DEBUG); logger('consume_feed: ' . print_r($datarray,true),LOGGER_DATA); $xx = item_store($datarray); $r = $xx['item_id']; continue; } } } } function update_feed_item($uid,$datarray) { logger('update_feed_item: not implemented! ' . $uid . ' ' . print_r($datarray,true), LOGGER_DATA); } function handle_feed($uid,$abook_id,$url) { require_once('include/Contact.php'); $channel = channelx_by_n($uid); if(! $channel) return; $x = q("select * from abook left join xchan on abook_xchan = xchan_hash where abook_id = %d and abook_channel = %d limit 1", dbesc($abook_id), intval($uid) ); $recurse = 0; $z = z_fetch_url($url,false,$recurse,array('novalidate' => true)); //logger('handle_feed:' . print_r($z,true)); if($z['success']) { consume_feed($z['body'],$channel,$x[0],0); consume_feed($z['body'],$channel,$x[0],1); } } function atom_author($tag,$name,$uri,$h,$w,$type,$photo) { $o = ''; if(! $tag) return $o; $name = xmlify($name); $uri = xmlify($uri); $h = intval($h); $w = intval($w); $photo = xmlify($photo); $o .= "<$tag>\r\n"; $o .= "$name\r\n"; $o .= "$uri\r\n"; $o .= '' . "\r\n"; $o .= '' . "\r\n"; call_hooks('atom_author', $o); $o .= "\r\n"; return $o; } function atom_entry($item,$type,$author,$owner,$comment = false,$cid = 0) { if(! $item['parent']) return; if($item['deleted']) return '' . "\r\n"; if($item['allow_cid'] || $item['allow_gid'] || $item['deny_cid'] || $item['deny_gid']) $body = fix_private_photos($item['body'],$owner['uid'],$item,$cid); else $body = $item['body']; $o = "\r\n\r\n\r\n"; if(is_array($author)) $o .= atom_author('author',$author['xchan_name'],$author['xchan_url'],80,80,$author['xchan_photo_mimetype'],$author['xchan_photo_m']); else $o .= atom_author('author',$item['author']['xchan_name'],$item['author']['xchan_url'],80,80,$item['author']['xchan_photo_mimetype'], $item['author']['xchan_photo_m']); $o .= atom_author('zot:owner',$item['owner']['xchan_name'],$item['owner']['xchan_url'],80,80,$item['owner']['xchan_photo_mimetype'],$item['owner']['xchan_photo_m']); if(($item['parent'] != $item['id']) || ($item['parent_mid'] !== $item['mid']) || (($item['thr_parent'] !== '') && ($item['thr_parent'] !== $item['mid']))) { $parent_item = (($item['thr_parent']) ? $item['thr_parent'] : $item['parent_mid']); $o .= '' . "\r\n"; } $o .= '' . xmlify($item['mid']) . '' . "\r\n"; $o .= '' . "\r\n"; $o .= '' . xmlify(datetime_convert('UTC','UTC',$item['created'] . '+00:00',ATOM_TIME)) . '' . "\r\n"; $o .= '' . xmlify(datetime_convert('UTC','UTC',$item['edited'] . '+00:00',ATOM_TIME)) . '' . "\r\n"; $o .= '' . xmlify(prepare_text($body,$item['mimetype'])) . '' . "\r\n"; $o .= '' . "\r\n"; if($item['location']) { $o .= '' . xmlify($item['location']) . '' . "\r\n"; $o .= '' . xmlify($item['location']) . '' . "\r\n"; } if($item['coord']) $o .= '' . xmlify($item['coord']) . '' . "\r\n"; if(($item['item_private']) || strlen($item['allow_cid']) || strlen($item['allow_gid']) || strlen($item['deny_cid']) || strlen($item['deny_gid'])) $o .= '' . (($item['item_private']) ? $item['item_private'] : 1) . '' . "\r\n"; if($item['app']) $o .= '' . "\r\n"; $verb = construct_verb($item); $o .= '' . xmlify($verb) . '' . "\r\n"; $actobj = construct_activity_object($item); if(strlen($actobj)) $o .= $actobj; $actarg = construct_activity_target($item); if(strlen($actarg)) $o .= $actarg; // FIXME // $tags = item_getfeedtags($item); // if(count($tags)) { // foreach($tags as $t) { // $o .= '' . "\r\n"; // } // } // FIXME // $o .= item_getfeedattach($item); // $mentioned = get_mentions($item,$tags); // if($mentioned) // $o .= $mentioned; call_hooks('atom_entry', $o); $o .= '' . "\r\n"; return $o; } function fix_private_photos($s, $uid, $item = null, $cid = 0) { $a = get_app(); logger('fix_private_photos', LOGGER_DEBUG); $site = substr($a->get_baseurl(),strpos($a->get_baseurl(),'://')); $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('fix_private_photos: 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); $r = q("SELECT * FROM `photo` WHERE `resource_id` = '%s' AND `scale` = %d AND `uid` = %d", dbesc($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('fix_private_photos: 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('fix_private_photos: replacing photo', LOGGER_DEBUG); $image = 'data:' . $type . ';base64,' . base64_encode($data); logger('fix_private_photos: 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)); $ret = array(); if(count($terms)) { foreach($terms as $term) { if($term['type'] == TERM_HASHTAG) $ret[] = array('#',$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) { $a = get_app(); // locate item to be deleted $r = q("SELECT * FROM item WHERE id = %d LIMIT 1", intval($id) ); if((! $r) || (($r[0]['item_restrict'] & ITEM_DELETED) && ($stage === DROPITEM_NORMAL))) { if(! $interactive) return 0; notice( t('Item not found.') . EOL); goaway($a->get_baseurl() . '/' . $_SESSION['return_url']); } $item = $r[0]; $linked_item = (($item['resource_id']) ? 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 = $a->get_observer(); if($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. $r = q("UPDATE item SET item_restrict = ( item_restrict | %d ) WHERE id = %d", intval(($linked_item && ! $force) ? ITEM_HIDDEN : ITEM_DELETED), intval($item['id']) ); $arr = array('item' => $item, 'interactive' => $interactive, 'stage' => $stage); 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(! $interactive) return 1; // send the notification upstream/downstream as the case may be // only send notifications to others if this is the owner's wall item. // This isn't optimal. We somehow need to pass to this function whether or not // to call the notifier, or we need to call the notifier from the calling function. // We'll rely on the undocumented behaviour that DROPITEM_PHASE1 is (hopefully) only // set if we know we're going to send delete notifications out to others. if((($item['item_flags'] & ITEM_WALL) && ($stage != DROPITEM_PHASE2)) || ($stage == DROPITEM_PHASE1)) proc_run('php','include/notifier.php','drop',$notify_id); goaway($a->get_baseurl() . '/' . $_SESSION['return_url']); } else { if(! $interactive) return 0; notice( t('Permission denied.') . EOL); goaway($a->get_baseurl() . '/' . $_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 . ' stage: ' . $stage . ' force: ' . $force, LOGGER_DATA); switch($stage) { case DROPITEM_PHASE2: $r = q("UPDATE item SET item_restrict = ( item_restrict | %d ), body = '', title = '', changed = '%s', edited = '%s' WHERE id = %d", intval(ITEM_PENDING_REMOVE), dbesc(datetime_convert()), dbesc(datetime_convert()), intval($item['id']) ); break; case DROPITEM_PHASE1: $r = q("UPDATE item SET item_restrict = ( item_restrict | %d ), changed = '%s', edited = '%s' WHERE id = %d", intval(($linked_item && ! $force) ? ITEM_HIDDEN : ITEM_DELETED), dbesc(datetime_convert()), dbesc(datetime_convert()), intval($item['id']) ); break; case DROPITEM_NORMAL: default: if($linked_item && ! $force) { $r = q("UPDATE item SET item_restrict = ( item_restrict | %d ), changed = '%s', edited = '%s' WHERE id = %d", intval(ITEM_HIDDEN), dbesc(datetime_convert()), dbesc(datetime_convert()), intval($item['id']) ); } else { $r = q("UPDATE item SET item_restrict = ( item_restrict | %d ), body = '', title = '', changed = '%s', edited = '%s' WHERE id = %d", intval(ITEM_DELETED), dbesc(datetime_convert()), dbesc(datetime_convert()), intval($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']) ); // 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 item_id where iid = %d and uid = %d", intval($item['id']), intval($item['uid']) ); q("delete from term where oid = %d and otype = %d", intval($item['id']), intval(TERM_OBJ_POST) ); /** @FIXME remove notifications for this item */ return true; } function first_post_date($uid,$wall = false) { $wall_sql = (($wall) ? sprintf(" and (item_flags & %d)>0 ", ITEM_WALL) : "" ); $r = q("select id, created from item where item_restrict = %d and uid = %d and id = parent $wall_sql order by created asc limit 1", intval(ITEM_VISIBLE), intval($uid) ); if($r) { // logger('first_post_date: ' . $r[0]['id'] . ' ' . $r[0]['created'], LOGGER_DATA); return substr(datetime_convert('',date_default_timezone_get(),$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 unknown $wall * @param unknown $mindate * @return array */ function list_post_dates($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 $ret; } function fetch_post_tags($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) ); } for($x = 0; $x < count($items); $x ++) { if($tags) { foreach($tags as $t) { if(($link) && ($t['type'] == 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; } } } } } return $items; } function zot_feed($uid,$observer_hash,$arr) { $result = array(); $mindate = null; $message_id = null; require_once('include/security.php'); if(array_key_exists('mindate',$arr)) { $mindate = datetime_convert('UTC','UTC',$arr['mindate']); } if(array_key_exists('message_id',$arr)) { $message_id = $arr['message_id']; } if(! $mindate) $mindate = NULL_DATE; $mindate = dbesc($mindate); logger('zot_feed: requested for uid ' . $uid . ' from observer ' . $observer_xchan, LOGGER_DEBUG); if($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)) { require_once('include/security.php'); $sql_extra = item_permissions_sql($uid,$observer_hash); } $limit = " LIMIT 100 "; if($mindate != NULL_DATE) { $sql_extra .= " and ( created > '$mindate' or changed > '$mindate' ) "; } if($message_id) { $sql_extra .= " and mid = '" . dbesc($message_id) . "' "; $limit = ''; } $items = array(); /** @FIXME fix this part for PostgreSQL */ if(ACTIVE_DBTYPE == DBTYPE_POSTGRES) { return array(); } if(is_sys_channel($uid)) { $r = q("SELECT parent, created, postopts from item WHERE uid != %d AND item_private = 0 AND item_restrict = 0 AND uid in (" . stream_perms_api_uids(PERMS_PUBLIC,10,1) . ") AND (item_flags & %d) > 0 $sql_extra GROUP BY parent ORDER BY created ASC $limit", intval($uid), intval(ITEM_WALL) ); } else { $r = q("SELECT parent, created, postopts from item WHERE uid = %d AND item_restrict = 0 AND (item_flags & %d) > 0 $sql_extra GROUP BY parent ORDER BY created ASC $limit", intval($uid), intval(ITEM_WALL) ); } if($r) { for($x = 0; $x < count($r); $x ++) { if(strpos($r[$x]['postopts'],'nodeliver') !== false) { unset($r[$x]); } } $parents_str = ids_to_querystr($r,'parent'); $sys_query = ((is_sys_channel($uid)) ? $sql_extra : ''); $items = q("SELECT `item`.*, `item`.`id` AS `item_id` FROM `item` WHERE `item`.`item_restrict` = 0 AND `item`.`parent` IN ( %s ) $sys_query ", dbesc($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); $a = get_app(); $sql_extra = ''; $sql_nets = ''; $sql_options = ''; $sql_extra2 = ''; $sql_extra3 = ''; $def_acl = ''; $item_uids = ' true '; if ($arr['uid']) $uid= $arr['uid']; if($channel) { $uid = $channel['channel_id']; $uidhash = $channel['channel_hash']; $item_uids = " item.uid = " . intval($uid) . " "; } if($arr['star']) $sql_options .= " and (item_flags & " . intval(ITEM_STARRED) . ")>0 "; if($arr['wall']) $sql_options .= " and (item_flags & " . intval(ITEM_WALL) . ")>0 "; $sql_extra = " AND item.parent IN ( SELECT parent FROM item WHERE (item_flags & " . intval(ITEM_THREAD_TOP) . ")>0 $sql_options ) "; if($arr['since_id']) $sql_extra .= " and item.id > " . $since_id . " "; if($arr['gid'] && $uid) { $r = q("SELECT * FROM `groups` WHERE id = %d AND uid = %d LIMIT 1", intval($arr['group']), intval($uid) ); if(! $r) { $result['message'] = t('Collection not found.'); return $result; } $contact_str = ''; /** @FIXME $group is undefined */ $contacts = group_get_members($group); if ($contacts) { foreach($contacts as $c) { if($contact_str) $contact_str .= ','; $contact_str .= "'" . $c['xchan'] . "'"; } } else { $contact_str = ' 0 '; $result['message'] = t('Collection 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 and item_restrict = 0 ) "; $x = group_rec_byhash($uid,$r[0]['hash']); $result['headline'] = sprintf( t('Collection: %s'),$x['name']); } elseif($arr['cid'] && $uid) { $r = q("SELECT abook.*, xchan.* from abook left join xchan on abook_xchan = xchan_hash where abook_id = %d and abook_channel = %d and not ( abook_flags & " . intval(ABOOK_FLAG_BLOCKED) . ")>0 limit 1", intval($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']) . "' ) and item_restrict = 0 ) "; $result['headline'] = sprintf( t('Connection: %s'),$r[0]['xchan_name']); } else { $result['message'] = t('Connection not found.'); return $result; } } if ($arr['datequery']) { $sql_extra3 .= protect_sprintf(sprintf(" AND item.created <= '%s' ", dbesc(datetime_convert(date_default_timezone_get(),'',$arr['datequery'])))); } if ($arr['datequery2']) { $sql_extra3 .= protect_sprintf(sprintf(" AND item.created >= '%s' ", dbesc(datetime_convert(date_default_timezone_get(),'',$arr['datequery2'])))); } if(! array_key_exists('nouveau',$arr)) { $sql_extra2 = " AND item.parent = item.id "; $sql_extra3 = ''; } if($arr['search']) { if(strpos($arr['search'],'#') === 0) $sql_extra .= term_query('item',substr($arr['search'],1),TERM_HASHTAG); 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) { $sql_extra .= sprintf(" AND parent IN (SELECT distinct parent from item where ( author_xchan like '%s' or ( item_flags & %d )>0)) ", dbesc(protect_sprintf($uidhash)), intval(ITEM_MENTIONSME) ); } 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); $a->set_pager_itemspage(((intval($itemspage)) ? $itemspage : 20)); $pager_sql = sprintf(" LIMIT %d OFFSET %d ", intval(get_app()->pager['itemspage']), intval(get_app()->pager['start'])); } if (isset($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']) . " ) "; /** @fixme dead code, $cmax is undefined */ if ($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_restrict & " . ITEM_WEBPAGE . ") "; else $item_restrict = " AND item_restrict = 0 "; if ($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 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_flags & %d) = 0 or abook.abook_flags is null) $sql_extra3 $sql_extra $sql_nets ORDER BY item.$ordering DESC $pager_sql ", intval(ABOOK_FLAG_BLOCKED) ); } 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_flags & %d) = 0 or abook.abook_flags is null) $sql_extra3 $sql_extra $sql_nets ", intval(ABOOK_FLAG_BLOCKED) ); } //$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,true); //$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 $items; } function update_remote_id($channel,$post_id,$webpage,$pagetitle,$namespace,$remote_id,$mid) { $page_type = ''; if(! $post_id) return; if($webpage & ITEM_WEBPAGE) $page_type = 'WEBPAGE'; elseif($webpage & ITEM_BUILDBLOCK) $page_type = 'BUILDBLOCK'; elseif($webpage & ITEM_PDL) $page_type = 'PDL'; elseif($namespace && $remote_id) { $page_type = $namespace; $pagetitle = $remote_id; } if($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. $r = q("select * from item_id where iid = %d and uid = %d and service = '%s' limit 1", intval($post_id), intval($channel['channel_id']), dbesc($page_type) ); if($r) { q("update item_id set sid = '%s' where id = %d", dbesc(($pagetitle) ? $pagetitle : substr($mid,0,16)), intval($r[0]['id']) ); } else { q("insert into item_id ( iid, uid, sid, service ) values ( %d, %d, '%s','%s' )", intval($post_id), intval($channel['channel_id']), dbesc(($pagetitle) ? $pagetitle : substr($mid,0,16)), dbesc($page_type) ); } } } /** * @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($item['mid'], get_app()->get_hostname()) && ($item['parent'] != $item['id'])) return true; return false; }