get_hostname())) return true; return false; } /** * @function red_zrl_callback * 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. * */ function red_zrl_callback($matches) { $m = @parse_url($matches[2]); $zrl = false; if($m['host']) { $r = q("select hubloc_url from hubloc where hubloc_host = '%s' limit 1", dbesc($m['host']) ); if($r) $zrl = true; } if($zrl) return $matches[1] . '[zrl=' . $matches[2] . ']' . $matches[2] . '[/zrl]'; return $matches[0]; } /** * @function post_activity_item($arr) * * post an activity * * @param array $arr * * In its simplest form one needs only to set $arr['body'] to post a note to the logged in channel's wall. * Much more complex activities can be created. Permissions are checked. No filtering, tag expansion * or other processing is performed. * * @returns array * 'success' => true or false * 'activity' => the resulting activity if successful */ function post_activity_item($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 $ret; } if(! array_key_exists('mimetype',$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']) $arr['title'] = json_encode(aes_encapsulate($arr['title'],$key)); if($arr['body']) $arr['body'] = json_encode(aes_encapsulate($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); $arr['allow_cid'] = ((x($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 $ret; } function get_public_feed($channel,$params) { $type = 'xml'; $begin = '0000-00-00 00:00:00'; $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'] : '0000-00-00 00:00:00'); $params['end'] = ((x($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($params['pages']) : 0); switch($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); } 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' ), $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(RED_PLATFORM), '$feed_id' => xmlify($channel['channel_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['channel_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; $atom .= atom_entry($item,$type,null,$owner,true); } } call_hooks('atom_feed_end', $atom); $atom .= '' . "\r\n"; return $atom; } function construct_verb($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 $o; } return ''; } /* limit_body_size() * * The purpose of this function is to apply system message length limits to * imported messages without including any embedded photos in the length */ function limit_body_size($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; $max_found = false; $img_start = strpos($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) : ''); $arr['created'] = datetime_convert('UTC','UTC',$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']) : '0000-00-00 00:00:00'); $arr['commented'] = ((x($x,'commented') && $x['commented']) ? datetime_convert('UTC','UTC',$x['commented']) : $arr['created']); $arr['title'] = (($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) : ''); $arr['mid'] = (($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) : ''); $arr['comment_policy'] = (($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) : ''); $arr['object'] = activity_sanitise($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('deleted',$x['flags'])) $arr['item_restrict'] = ITEM_DELETED; // Here's the deal - the site might be down or whatever but if there's a new person you've never // seen before sending stuff to your stream, we MUST be able to look them up and import their data from their // hub and verify that they are legit - or else we're going to toss the post. We only need to do this // once, and after that your hub knows them. Sure some info is in the post, but it's only a transit identifier // and not enough info to be able to look you up from your hash - which is the only thing stored with the post. if(($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'] === base64url_encode(hash('whirlpool',$x['owner']['guid'] . $x['owner']['guid_sig'], true))) $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; $key = get_config('system','pubkey'); if($arr['title']) $arr['title'] = json_encode(crypto_encapsulate($arr['title'],$key)); if($arr['body']) $arr['body'] = json_encode(crypto_encapsulate($arr['body'],$key)); } 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')) { return import_author_zot($x); } // TODO: create xchans for other common and/or aligned networks return false; } function encode_item($item) { $x = array(); $x['type'] = 'activity'; // logger('encode_item: ' . print_r($item,true)); $r = q("select channel_r_stream, channel_w_comment from channel where channel_id = %d limit 1", intval($item['uid']) ); if($r) { $public_scope = $r[0]['channel_r_stream']; $comment_scope = $r[0]['channel_w_comment']; } else { $public_scope = 0; $comment_scope = 0; } $scope = map_scope($public_scope); $c_scope = map_scope($comment_scope); if(array_key_exists('item_flags',$item) && ($item['item_flags'] & ITEM_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']),$key); } if($item['item_restrict'] & ITEM_DELETED) { $x['message_id'] = $item['mid']; $x['created'] = $item['created']; $x['flags'] = array('deleted'); $x['owner'] = encode_item_xchan($item['owner']); $x['author'] = encode_item_xchan($item['author']); return $x; } $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']; $x['expires'] = $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']; $x['owner'] = encode_item_xchan($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'] = $y; if(! in_array('private',$y)) $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']); logger('encode_item: ' . print_r($x,true)); return $x; } function map_scope($scope) { switch($scope) { case 0: return 'self'; case PERMS_PUBLIC: return 'public'; case PERMS_NETWORK: return 'network: red'; case PERMS_SITE: return 'site: ' . get_app()->get_hostname(); case PERMS_CONTACTS: default: return 'contacts'; } } function encode_item_xchan($xchan) { $ret = array(); $ret['name'] = $xchan['xchan_name']; $ret['address'] = $xchan['xchan_addr']; $ret['url'] = $xchan['hubloc_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(); $allowed_export_terms = array( TERM_UNKNOWN, TERM_HASHTAG, TERM_MENTION, TERM_CATEGORY ); if($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 $ret; } function termtype($t) { $types = array('unknown','hashtag','mention','category','private_category','file','search'); return(($types[$t]) ? $types[$t] : 'unknown'); } 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; default: case 'unknown': $tag['type'] = TERM_UNKNOWN; break; } $ret[] = $tag; } return $ret; } return ''; } // santise a potentially complex array function activity_sanitise($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 ''; } // sanitise a simple linear array 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. // ITEM_DELETED is handled in encode_item directly so we don't need to handle it here. $ret = array(); if($item['item_flags'] & ITEM_THREAD_TOP) $ret[] = 'thread_parent'; if($item['item_flags'] & ITEM_NSFW) $ret[] = 'nsfw'; if($item['item_private']) $ret[] = 'private'; return $ret; } function encode_mail($item) { $x = array(); $x['type'] = 'mail'; if(array_key_exists('mail_flags',$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['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'] === '0000-00-00 00:00:00')) $arr['expires'] = '0000-00-00 00:00:00'; 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 $arr; } function get_atom_elements($feed,$item) { $best_photo = array(); $res = array(); $author = $item->get_author(); if($author) { $res['author-name'] = unxmlify($author->get_name()); $res['author-link'] = unxmlify($author->get_link()); } else { $res['author-name'] = unxmlify($feed->get_title()); $res['author-link'] = unxmlify($feed->get_permalink()); } $res['mid'] = unxmlify($item->get_id()); $res['title'] = unxmlify($item->get_title()); $res['body'] = unxmlify($item->get_content()); $res['plink'] = unxmlify($item->get_link(0)); // 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 $link) { if(!x($res, 'author-avatar') || !$res['author-avatar']) { if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar') $res['author-avatar'] = unxmlify($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'])) $res['author-link'] = unxmlify($link['attribs']['']['href']); if(!x($res, 'author-avatar') || !$res['author-avatar']) { if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo') $res['author-avatar'] = unxmlify($link['attribs']['']['href']); } } } } // No photo/profile-link on the item - look at the feed level if((! (x($res,'author-link'))) || (! (x($res,'author-avatar')))) { $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' && (! $res['author-link'])) $res['author-link'] = unxmlify($link['attribs']['']['href']); if(! $res['author-avatar']) { if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar') $res['author-avatar'] = unxmlify($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'])) $res['author-link'] = unxmlify($link['attribs']['']['href']); if(! (x($res,'author-avatar'))) { if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo') $res['author-avatar'] = unxmlify($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'])); } $res['body'] = limit_body_size($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']); } $private = $item->get_item_tags(NAMESPACE_DFRN,'private'); if($private && intval($private[0]['data']) > 0) $res['private'] = intval($private[0]['data']); else $res['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(); $rawowner = $item->get_item_tags(NAMESPACE_DFRN, 'owner'); if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']) $res['owner-name'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']); elseif($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data']) $res['owner-name'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data']); if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']) $res['owner-link'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']); elseif($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data']) $res['owner-link'] = unxmlify($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 $link) { if(!x($res, 'owner-avatar') || !$res['owner-avatar']) { if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar') $res['owner-avatar'] = unxmlify($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) { $terms = array(); foreach($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_UNKNOWN; } $termterm = notags(trim(unxmlify($term))); if($termterm) { $terms = array( 'otype' => TERM_OBJ_POST, 'type' => $termtype, 'url' => $termurl, 'term' => $termterm, ); } } $res['term'] = implode(',', $tag_arr); } $attach = $item->get_enclosures(); if($attach) { $att_arr = array(); foreach($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'; $att_arr[] = '[attach]href="' . $link . '" length="' . $len . '" type="' . $type . '" title="' . $title . '"[/attach]'; } $res['attach'] = implode(',', $att_arr); } $rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'object'); if($rawobj) { $res['object'] = '' . "\n"; } $rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'target'); if($rawobj) { $res['target'] = '' . "\n"; $child = $rawobj[0]['child']; if($child[NAMESPACE_ACTIVITY]['obj_type'][0]['data']) { $res['target'] .= '' . $child[NAMESPACE_ACTIVITY]['obj_type'][0]['data'] . '' . "\n"; } if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'id') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data']) $res['target'] .= '' . $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'] . '' . "\n"; if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'link') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['link']) $res['target'] .= '' . encode_rel_links($child[SIMPLEPIE_NAMESPACE_ATOM_10]['link']) . '' . "\n"; if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'data') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data']) $res['target'] .= '' . "\n"; if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'data') && $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 $res['target'] .= '' . xmlify($body) . '' . "\n"; if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) { $body = purify_html($body); $body = html2bbcode($body); } $res['target'] .= '' . $body . '' . "\n"; } $res['target'] .= '' . "\n"; } // This is some experimental stuff. By now retweets are shown with "RT:" // But: There is data so that the message could be shown similar to native retweets // There is some better way to parse this array - but it didn't worked for me. $child = $item->feed->data["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["feed"][0]["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["entry"][0]["child"]["http://activitystrea.ms/spec/1.0/"][object][0]["child"]; if (is_array($child)) { $message = $child["http://activitystrea.ms/spec/1.0/"]["object"][0]["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["content"][0]["data"]; $author = $child[SIMPLEPIE_NAMESPACE_ATOM_10]["author"][0]["child"][SIMPLEPIE_NAMESPACE_ATOM_10]; $uri = $author["uri"][0]["data"]; $name = $author["name"][0]["data"]; $avatar = @array_shift($author["link"][2]["attribs"]); $avatar = $avatar["href"]; if (($name != "") and ($uri != "") and ($avatar != "") and ($message != "")) { $res["owner-name"] = $res["author-name"]; $res["owner-link"] = $res["author-link"]; $res["owner-avatar"] = $res["author-avatar"]; $res["author-name"] = $name; $res["author-link"] = $uri; $res["author-avatar"] = $avatar; $res["body"] = html2bbcode($message); } } $arr = array('feed' => $feed, 'item' => $item, 'result' => $res); call_hooks('parse_atom', $arr); logger('get_atom_elements: ' . print_r($res,true)); 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('result' => 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; } $arr['title'] = ((x($arr,'title')) ? notags(trim($arr['title'])) : ''); $arr['body'] = ((x($arr,'body')) ? trim($arr['body']) : ''); $arr['allow_cid'] = ((x($arr,'allow_cid')) ? trim($arr['allow_cid']) : ''); $arr['allow_gid'] = ((x($arr,'allow_gid')) ? trim($arr['allow_gid']) : ''); $arr['deny_cid'] = ((x($arr,'deny_cid')) ? trim($arr['deny_cid']) : ''); $arr['deny_gid'] = ((x($arr,'deny_gid')) ? trim($arr['deny_gid']) : ''); $arr['item_private'] = ((x($arr,'item_private')) ? intval($arr['item_private']) : 0 ); $arr['item_flags'] = ((x($arr,'item_flags')) ? intval($arr['item_flags']) : 0 ); $arr['title'] = escape_tags($arr['title']); // 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_user() && (! $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']) : '0000-00-00 00:00:00'); $arr['commented'] = ((x($arr,'commented') !== false) ? datetime_convert('UTC','UTC',$arr['commented']) : datetime_convert()); $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'])) : ''); $arr['obj_type'] = ((x($arr,'obj_type')) ? notags(trim($arr['obj_type'])) : ''); $arr['object'] = ((x($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 ); $arr['comment_policy'] = ((x($arr,'comment_policy')) ? notags(trim($arr['comment_policy'])) : 'contacts' ); $arr['item_flags'] = $arr['item_flags'] | ITEM_UNSEEN; if($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']; $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) { // 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 = $r[0]['deny_gid']; if($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']; $uplinked_comment = true; } // if the parent is private, force privacy for the entire conversation // This differs from the above settings as it subtly allows comments from // email correspondents to be private even if the overall thread is not. if($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 $ret; } call_hooks('post_remote',$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']); } 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) ); } if((! $parent_id) || ($arr['parent_mid'] === $arr['mid'])) $parent_id = $current_post; if(strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid)) $private = 1; else $private = $arr['item_private']; // Set parent id - and also make sure to inherit the parent's ACL's. $r = q("UPDATE item SET parent = %d, allow_cid = '%s', allow_gid = '%s', deny_cid = '%s', deny_gid = '%s', item_private = %d WHERE id = %d LIMIT 1", intval($parent_id), dbesc($allow_cid), dbesc($allow_gid), dbesc($deny_cid), dbesc($deny_gid), intval($private), intval($current_post) ); // These are probably redundant now that we've queried the just stored post $arr['id'] = $current_post; $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['item_private'] = $private; // Store taxonomy if(($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 $z = q("select max(created) as commented from item where parent_mid = '%s' and uid = %d ", dbesc($arr['parent_mid']), intval($arr['uid']) ); q("UPDATE item set commented = '%s', changed = '%s' WHERE id = %d LIMIT 1", dbesc(($z) ? $z[0]['commented'] : (datetime_convert())), dbesc(datetime_convert()), intval($parent_id) ); 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']; $ret = array('result' => false, 'item_id' => 0); if(! intval($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 $ret; } // override the unseen flag with the original if($arr['item_flags'] & ITEM_UNSEEN) $arr['item_flags'] = $arr['item_flags'] ^ ITEM_UNSEEN; if($orig[0]['item_flags'] & ITEM_VERIFIED) $orig[0]['item_flags'] = $orig[0]['item_flags'] ^ ITEM_VERIFIED; $arr['item_flags'] = intval($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_user() && (! $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']); $arr['commented'] = $orig[0]['commented']; $arr['received'] = datetime_convert(); $arr['changed'] = datetime_convert(); $arr['title'] = ((x($arr,'title')) ? notags(trim($arr['title'])) : ''); $arr['location'] = ((x($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']); $arr['allow_cid'] = ((x($arr,'allow_cid')) ? trim($arr['allow_cid']) : $orig[0]['allow_cid']); $arr['allow_gid'] = ((x($arr,'allow_gid')) ? trim($arr['allow_gid']) : $orig[0]['allow_gid']); $arr['deny_cid'] = ((x($arr,'deny_cid')) ? trim($arr['deny_cid']) : $orig[0]['deny_cid']); $arr['deny_gid'] = ((x($arr,'deny_gid')) ? trim($arr['deny_gid']) : $orig[0]['deny_gid']); $arr['item_private'] = ((x($arr,'item_private')) ? intval($arr['item_private']) : $orig[0]['item_private']); $arr['body'] = ((x($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'] : ''); $arr['layout_mid'] = ((x($arr,'layout_mid')) ? dbesc($arr['layout_mid']) : $orig[0]['layout_mid'] ); call_hooks('post_remote_update',$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 = " . $orig_post_id . " limit 1"); if($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 $ret; } function send_status_notifications($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']; } } } 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' => get_app()->get_baseurl() . '/display/' . $item['mid'], 'verb' => ACTIVITY_POST, 'otype' => 'item', 'parent' => $parent, 'parent_mid' => $item['parent_mid'] )); return; } function get_item_contact($item,$contacts) { if(! count($contacts) || (! is_array($item))) return false; foreach($contacts as $contact) { if($contact['id'] == $item['contact-id']) { return $contact; break; // NOTREACHED } } return false; } function tag_deliver($uid,$item_id) { // 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 $a = get_app(); $mention = false; $u = q("select * from channel where channel_id = %d limit 1", intval($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'] != $item['created'])) { // this is an update to a post which was already processed by us and has a second delivery chain // Just start the second delivery chain to deliver the updated post proc_run('php','include/notifier.php','tgroup',$item['id']); return; } 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'))) { $j_tgt = json_decode_plus($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']); proc_run('php','include/notifier.php','edit_post',$p[0]['id']); } } } } else logger('tag_deliver: tag permission denied for ' . $u[0]['channel_address']); } $union = check_item_source($uid,$item); if($union) logger('check_item_source returns true'); // This might be a followup by the original post author to a tagged forum // If so setup a second delivery chain $r = null; if( ! ($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)) { logger('tag_deliver: creating second delivery chain for comment to tagged post.'); // now 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 $private = (($u[0]['allow_cid'] || $u[0]['allow_gid'] || $u[0]['deny_cid'] || $u[0]['deny_gid']) ? 1 : 0); $flag_bits = ITEM_WALL|ITEM_ORIGIN; // maintain the original source, which will be the original item owner and was stored in source_xchan // when we created the delivery fork $r = q("update item set source_xchan = '%s' where id = %d limit 1", dbesc($x[0]['source_xchan']), intval($item_id) ); $r = q("update item set item_flags = ( item_flags | %d ), owner_xchan = '%s', allow_cid = '%s', allow_gid = '%s', deny_cid = '%s', deny_gid = '%s', item_private = %d where id = %d limit 1", intval($flag_bits), dbesc($u[0]['channel_hash']), dbesc($u[0]['allow_cid']), dbesc($u[0]['allow_gid']), dbesc($u[0]['deny_cid']), dbesc($u[0]['deny_gid']), intval($private), intval($item_id) ); if($r) proc_run('php','include/notifier.php','tgroup',$item_id); else logger('tag_deliver: failed to update item'); } } $terms = get_terms_oftype($item['term'],TERM_MENTION); if($terms) logger('tag_deliver: post mentions: ' . print_r($terms,true), LOGGER_DATA); $link = normalise_link($a->get_baseurl() . '/channel/' . $u[0]['channel_address']); if($terms) { foreach($terms as $term) { if((strcasecmp($term['term'],$u[0]['channel_name']) == 0) && link_compare($term['url'],$link)) { $mention = true; break; } } } if($mention) { logger('tag_deliver: mention found for ' . $u[0]['channel_name']); $r = q("update item set item_flags = ( item_flags | %d ) where id = %d limit 1", intval(ITEM_MENTIONSME), intval($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); $pattern = '/@\!?\[zrl\=' . preg_quote($term['url'],'/') . '\]' . preg_quote($u[0]['channel_name'],'/') . '\[\/zrl\]/'; if(! preg_match($pattern,$body,$matches)) { logger('tag_deliver: mention was in a reshare - ignoring'); return; } // All good. // Send a 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' => $i[0]['llink'], 'verb' => ACTIVITY_TAG, 'otype' => 'item' )); if(! perm_is_allowed($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.'); // now 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 $private = (($u[0]['allow_cid'] || $u[0]['allow_gid'] || $u[0]['deny_cid'] || $u[0]['deny_gid']) ? 1 : 0); $flag_bits = ITEM_WALL|ITEM_ORIGIN|ITEM_UPLINK; // preserve the source $r = q("update item set source_xchan = owner_xchan where id = %d limit 1", intval($item_id) ); $r = q("update item set item_flags = ( item_flags | %d ), owner_xchan = '%s', allow_cid = '%s', allow_gid = '%s', deny_cid = '%s', deny_gid = '%s', item_private = %d where id = %d limit 1", intval($flag_bits), dbesc($u[0]['channel_hash']), dbesc($u[0]['allow_cid']), dbesc($u[0]['allow_gid']), dbesc($u[0]['deny_cid']), dbesc($u[0]['deny_gid']), intval($private), intval($item_id) ); if($r) proc_run('php','include/notifier.php','tgroup',$item_id); else logger('tag_deliver: failed to update item'); } function tgroup_check($uid,$item) { $a = get_app(); $mention = false; // check that the message originated elsewhere and is a top-level post // or is a followup and we have already accepted the top level post as an uplink if($item['mid'] != $item['parent_mid']) { $r = q("select id from item where mid = '%s' and uid = %d and ( item_flags & %d ) limit 1", dbesc($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; $u = q("select * from channel where channel_id = %d limit 1", intval($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); $link = normalise_link($a->get_baseurl() . '/channel/' . $u[0]['channel_address']); if($terms) { foreach($terms as $term) { if(($term['term'] == $u[0]['channel_name']) && link_compare($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 $body = preg_replace('/\[share(.*?)\[\/share\]/','',$item['body']); $pattern = '/@\!?\[zrl\=' . preg_quote($term['url'],'/') . '\]' . preg_quote($u[0]['channel_name'],'/') . '\[\/zrl\]/'; if(! preg_match($pattern,$body,$matches)) { logger('tgroup_check: mention was in a reshare - ignoring'); return false; } return true; } /** * @function check_item_source($uid,$item) * @param $uid * @param $item * * @description * Checks to see if this item owner is referenced as a source for this channel and if the post * matches the rules for inclusion in this channel. Returns true if we should create a second delivery * chain and false if none of the rules apply, or if the item is private. */ function check_item_source($uid,$item) { if($item['item_private']) return false; $r = q("select * from source where src_channel_id = %d and src_xchan = '%s' limit 1", intval($uid), dbesc(($item['source_xchan']) ? $item['source_xchan'] : $item['owner_xchan']) ); if(! $r) return false; $x = q("select abook_their_perms from abook where abook_channel = %d and abook_xchan = '%s' limit 1", intval($uid), dbesc($item['owner_xchan']) ); if(! $x) return false; if(! ($x[0]['abook_their_perms'] & PERMS_A_REPUBLISH)) return false; if($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); $tags = ((count($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) === $word) return true; } if(stristr($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']) : '0000-00-00 00:00:00'); $arr['title'] = ((x($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; } /** * * consume_feed - process atom feed and update anything/everything we might need to update * * $xml = the (atom) feed to consume - RSS isn't as fully supported but may work for simple feeds. * * $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. * $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. * $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 * $pass - by default ($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, &$hub, $datedir = 0, $pass = 0) { require_once('library/simplepie/simplepie.inc'); if(! strlen($xml)) { logger('consume_feed: empty input'); return; } // Want to see this work as a content source for the matrix? // Read this: https://github.com/friendica/red/wiki/Service_Federation $feed = new SimplePie(); $feed->set_raw_data($xml); if($datedir) $feed->enable_order_by_date(true); else $feed->enable_order_by_date(false); $feed->init(); if($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)) { /* $r = q("SELECT `item`.*, `contact`.`self` FROM `item` left join `contact` on `item`.`contact-id` = `contact`.`id` WHERE `mid` = '%s' AND `item`.`uid` = %d AND `contact-id` = %d AND NOT `item`.`file` LIKE '%%[%%' LIMIT 1", dbesc($mid), intval($importer['channel_id']), intval($contact['id']) ); */ if(count($r)) { $item = $r[0]; if(! $item['deleted']) logger('consume_feed: deleting item ' . $item['id'] . ' mid=' . $item['mid'], LOGGER_DEBUG); if($item['mid'] == $item['parent_mid']) { $r = q("UPDATE `item` SET item_restrict = (item_restrict | %d), `edited` = '%s', `changed` = '%s', `body` = '', `title` = '' WHERE `parent_mid` = '%s' AND `uid` = %d", intval(ITEM_DELETED), dbesc($when), dbesc(datetime_convert()), dbesc($item['mid']), intval($importer['channel_id']) ); } else { $r = q("UPDATE `item` SET item_restrict = ( item_restrict | %d ), `edited` = '%s', `changed` = '%s', `body` = '', `title` = '' WHERE `mid` = '%s' AND `uid` = %d LIMIT 1", intval(ITEM_DELETED), dbesc($when), dbesc(datetime_convert()), dbesc($mid), intval($importer['channel_id']) ); } } } } } // Now process the feed if($feed->get_item_quantity()) { logger('consume_feed: feed item count = ' . $feed->get_item_quantity()); // in inverse date order if ($datedir) $items = array_reverse($feed->get_items()); else $items = $feed->get_items(); foreach($items as $item) { $is_reply = false; $item_id = $item->get_id(); logger('consume_feed: processing ' . $item_id); $rawthread = $item->get_item_tags( NAMESPACE_THREAD,'in-reply-to'); if(isset($rawthread[0]['attribs']['']['ref'])) { $is_reply = true; $parent_mid = $rawthread[0]['attribs']['']['ref']; } if($is_reply) { if($pass == 1) continue; // Have we seen it? If not, import it. $item_id = $item->get_id(); $datarray = get_atom_elements($feed,$item); if((! x($datarray,'author-name')) && ($contact['network'] != NETWORK_DFRN)) $datarray['author-name'] = $contact['name']; if((! x($datarray,'author-link')) && ($contact['network'] != NETWORK_DFRN)) $datarray['author-link'] = $contact['url']; if((! x($datarray,'author-avatar')) && ($contact['network'] != NETWORK_DFRN)) $datarray['author-avatar'] = $contact['thumb']; if((! x($datarray,'author-name')) || (! x($datarray,'author-link'))) { logger('consume_feed: no author information! ' . print_r($datarray,true)); continue; } $r = q("SELECT `uid`, `edited`, `body` FROM `item` WHERE `mid` = '%s' AND `uid` = %d LIMIT 1", dbesc($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; $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `edited` = '%s' WHERE `mid` = '%s' AND `uid` = %d LIMIT 1", dbesc($datarray['title']), dbesc($datarray['body']), dbesc(datetime_convert('UTC','UTC',$datarray['edited'])), dbesc($item_id), intval($importer['channel_id']) ); } continue; } $datarray['parent_mid'] = $parent_mid; $datarray['uid'] = $importer['channel_id']; $datarray['contact-id'] = $contact['id']; if((activity_match($datarray['verb'],ACTIVITY_LIKE)) || (activity_match($datarray['verb'],ACTIVITY_DISLIKE))) { $datarray['type'] = 'activity'; $datarray['gravity'] = GRAVITY_LIKE; // only one like or dislike per person $r = q("select id from item where uid = %d and `contact-id` = %d and verb ='%s' and deleted = 0 and (`parent_mid` = '%s' OR `thr_parent` = '%s') limit 1", intval($datarray['uid']), intval($datarray['contact-id']), dbesc($datarray['verb']), dbesc($parent_mid), dbesc($parent_mid) ); if($r && count($r)) continue; } if(($datarray['verb'] === ACTIVITY_TAG) && ($datarray['obj_type'] === ACTIVITY_OBJ_TAGTERM)) { $xo = parse_xml_string($datarray['object'],false); $xt = parse_xml_string($datarray['target'],false); if($xt->type == ACTIVITY_OBJ_NOTE) { $r = q("select * from item where `mid` = '%s' AND `uid` = %d limit 1", dbesc($xt->id), intval($importer['channel_id']) ); if(! count($r)) continue; // extract tag, if not duplicate, add to parent item if($xo->id && $xo->content) { $newtag = '#[zrl=' . $xo->id . ']'. $xo->content . '[/zrl]'; if(! (stristr($r[0]['tag'],$newtag))) { q("UPDATE item SET tag = '%s' WHERE id = %d LIMIT 1", dbesc($r[0]['tag'] . (strlen($r[0]['tag']) ? ',' : '') . $newtag), intval($r[0]['id']) ); } } } } logger('consume_feed: ' . print_r($datarray,true)); // $xx = item_store($datarray); $r = $xx['item_id']; continue; } else { // Head post of a conversation. Have we seen it? If not, import it. $item_id = $item->get_id(); $datarray = get_atom_elements($feed,$item); if(is_array($contact)) { if((! x($datarray,'author-name')) && ($contact['network'] != NETWORK_DFRN)) $datarray['author-name'] = $contact['name']; if((! x($datarray,'author-link')) && ($contact['network'] != NETWORK_DFRN)) $datarray['author-link'] = $contact['url']; if((! x($datarray,'author-avatar')) && ($contact['network'] != NETWORK_DFRN)) $datarray['author-avatar'] = $contact['thumb']; } if((! x($datarray,'author-name')) || (! x($datarray,'author-link'))) { logger('consume_feed: no author information! ' . print_r($datarray,true)); continue; } // special handling for events if((x($datarray,'obj_type')) && ($datarray['obj_type'] === ACTIVITY_OBJ_EVENT)) { $ev = bbtoevent($datarray['body']); if(x($ev,'desc') && x($ev,'start')) { $ev['uid'] = $importer['channel_id']; $ev['mid'] = $item_id; $ev['edited'] = $datarray['edited']; $ev['private'] = $datarray['private']; if(is_array($contact)) $ev['cid'] = $contact['id']; $r = q("SELECT * FROM `event` WHERE `mid` = '%s' AND `uid` = %d LIMIT 1", dbesc($item_id), intval($importer['channel_id']) ); if(count($r)) $ev['id'] = $r[0]['id']; // $xyz = event_store($ev); continue; } } $r = q("SELECT `uid`, `edited`, `body` FROM `item` WHERE `mid` = '%s' AND `uid` = %d LIMIT 1", dbesc($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; $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `edited` = '%s' WHERE `mid` = '%s' AND `uid` = %d LIMIT 1", dbesc($datarray['title']), dbesc($datarray['body']), dbesc(datetime_convert('UTC','UTC',$datarray['edited'])), dbesc($item_id), intval($importer['channel_id']) ); } continue; } if(activity_match($datarray['verb'],ACTIVITY_FOLLOW)) { logger('consume-feed: New follower'); new_follower($importer,$contact,$datarray,$item); return; } if(activity_match($datarray['verb'],ACTIVITY_UNFOLLOW)) { lose_follower($importer,$contact,$datarray,$item); return; } if(activity_match($datarray['verb'],ACTIVITY_REQ_FRIEND)) { logger('consume-feed: New friend request'); new_follower($importer,$contact,$datarray,$item,true); return; } if(activity_match($datarray['verb'],ACTIVITY_UNFRIEND)) { lose_sharer($importer,$contact,$datarray,$item); return; } // if(! is_array($contact)) // return; // This is my contact on another system, but it's really me. // Turn this into a wall post. if($contact['remote_self']) { $datarray['wall'] = 1; } $datarray['parent_mid'] = $item_id; $datarray['uid'] = $importer['channel_id']; $datarray['contact-id'] = $contact['id']; if(! link_compare($datarray['owner-link'],$contact['url'])) { // The item owner info is not our contact. It's OK and is to be expected if this is a tgroup delivery, // but otherwise there's a possible data mixup on the sender's system. // the tgroup delivery code called from item_store will correct it if it's a forum, // but we're going to unconditionally correct it here so that the post will always be owned by our contact. logger('consume_feed: Correcting item owner.', LOGGER_DEBUG); $datarray['owner-name'] = $contact['name']; $datarray['owner-link'] = $contact['url']; $datarray['owner-avatar'] = $contact['thumb']; } // We've allowed "followers" to reach this point so we can decide if they are // posting an @-tag delivery, which followers are allowed to do for certain // page types. Now that we've parsed the post, let's check if it is legit. Otherwise ignore it. if(($contact['rel'] == CONTACT_IS_FOLLOWER) && (! tgroup_check($importer['channel_id'],$datarray))) continue; logger('consume_feed: ' . print_r($datarray,true)); // $xx = item_store($datarray); $r = $xx['item_id']; continue; } } } } function atom_author($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) { $a = get_app(); 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 == $recipients2) return true; return false; } // returns an array of contact-ids that are allowed to see this object function enumerate_permissions($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 .= 'get_baseurl() . '/' . $_SESSION['return_url']); } $item = $r[0]; $ok_to_delete = false; // system deletion if(! $interactive) $ok_to_delete = true; // owner deletion if(local_user() && local_user() == $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. $r = q("UPDATE item SET item_restrict = ( item_restrict | %d ) WHERE id = %d LIMIT 1", intval(ITEM_DELETED), intval($item['id']) ); $arr = array('item' => $item); 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); } else delete_item_lowlevel($item); if(! $interactive) return 1; // send the notification upstream/downstream as the case may be // only send notifications to others if this is the owner's wall item. if($item['item_flags'] & ITEM_WALL) 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() . '/' . $_SESSION['return_url']); } } // This function does not check for permission and does not send notifications and does not check recursion. // It merely destroys all resources associated with an item. // Please do not use without a suitable wrapper. function delete_item_lowlevel($item) { $r = q("UPDATE item SET item_restrict = ( item_restrict | %d ), title = '', body = '', changed = '%s', edited = '%s' WHERE id = %d LIMIT 1", intval(ITEM_DELETED), dbesc(datetime_convert()), dbesc(datetime_convert()), intval($item['id']) ); $r = q("delete from term where otype = %d and oid = %d limit 1", intval(TERM_OBJ_POST), intval($item['id']) ); // If item is a link to a photo resource, nuke all the associated photos // This only applies to photos uploaded from the photos page. Photos inserted into a post do not // generate a resource_id and therefore aren't intimately linked to the item. if(strlen($item['resource_id'])) { if($item['resource_type'] === 'event') { q("delete from event where event_hash = '%s' and uid = %d limit 1", dbesc($item['resource_id']), intval($item['uid']) ); } elseif($item['resource_type'] === 'photo') { q("DELETE FROM `photo` WHERE `resource_id` = '%s' AND `uid` = %d ", dbesc($item['resource_id']), intval($item['uid']) ); } } q("delete from item_id where iid = %d and uid = %d limit 1", intval($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 ", 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(count($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; } 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) $dnow = substr($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 $ret; } function posted_date_widget($url,$uid,$wall) { $o = ''; if(! feature_enabled($uid,'archives')) return $o; $ret = posted_dates($uid,$wall); if(! count($ret)) return $o; $o = replace_macros(get_markup_template('posted_date_widget.tpl'),array( '$title' => t('Archives'), '$size' => ((count($ret) > 6) ? 6 : count($ret)), '$url' => $url, '$dates' => $ret )); return $o; } function fetch_post_tags($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,$observer_xchan,$mindate) { $result = array(); $mindate = datetime_convert('UTC','UTC',$mindate); if(! $mindate) $mindate = '0000-00-00 00:00:00'; $mindate = dbesc($mindate); logger('zot_feed: ' . $uid); if(! perm_is_allowed($uid,$observer_xchan,'view_stream')) { logger('zot_feed: permission denied.'); return $result; } require_once('include/security.php'); $sql_extra = item_permissions_sql($uid); if($mindate != '0000-00-00 00:00:00') { $sql_extra .= " and created > '$mindate' "; $limit = ""; } else $limit = " limit 0, 50 "; $items = array(); $r = q("SELECT item.*, item.id as item_id from item WHERE uid = %d AND item_restrict = 0 and id = parent AND (item_flags & %d) $sql_extra ORDER BY created ASC $limit", intval($uid), intval(ITEM_WALL) ); if($r) { $parents_str = ids_to_querystr($r,'id'); $items = q("SELECT `item`.*, `item`.`id` AS `item_id` FROM `item` WHERE `item`.`uid` = %d AND `item`.`item_restrict` = 0 AND `item`.`parent` IN ( %s ) ", intval($uid), dbesc($parents_str) ); } if($items) { xchan_query($items); $items = fetch_post_tags($items); require_once('include/conversation.php'); $items = conv_sort($items,'ascending'); } else $items = array(); foreach($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']) $sql_options .= " and (item_flags & " . intval(ITEM_STARRED) . ") "; if($arr['wall']) $sql_options .= " and (item_flags & " . intval(ITEM_WALL) . ") "; $sql_extra = " AND item.parent IN ( SELECT parent FROM item WHERE (item_flags & " . intval(ITEM_THREAD_TOP) . ") $sql_options ) "; if($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 = ''; $contacts = group_get_members($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) { $r = q("SELECT abook.*, xchan.* from abook left join xchan on abook_xchan = xchan_hash where abook_id = %d and abook_channel = %d and not ( abook_flags & " . intval(ABOOK_FLAG_BLOCKED) . ") limit 1", intval($arr['cid']), intval(local_user()) ); 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) { $sql_extra .= sprintf(" AND parent IN (SELECT distinct parent from item where ( author_xchan like '%s' or ( item_flags & %d ))) ", dbesc(protect_sprintf($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)); $pager_sql = sprintf(" LIMIT %d, %d ",intval(get_app()->pager['start']), intval(get_app()->pager['itemspage'])); } if(($arr['cmin'] != 0) || ($arr['cmax'] != 99)) { // Not everybody who shows up in the network stream will be in your address book. // By default those that aren't are assumed to have closeness = 99; but this isn't // recorded anywhere. So if cmax is 99, we'll open the search up to anybody in // the stream with a NULL address book entry. $sql_nets .= " AND "; if($arr['cmax'] == 99) $sql_nets .= " ( "; $sql_nets .= "( abook.abook_closeness >= " . intval($arr['cmin']) . " "; $sql_nets .= " AND abook.abook_closeness <= " . intval($arr['cmax']) . " ) "; if($cmax == 99) $sql_nets .= " OR abook.abook_closeness IS NULL ) "; } $simple_update = (($client_mode & CLIENT_MODE_UPDATE) ? " and ( item.item_flags & " . intval(ITEM_UNSEEN) . " ) " : ''); if($client_mode & CLIENT_MODE_LOAD) $simple_update = ''; $start = dba_timer(); require_once('include/security.php'); $sql_extra .= item_permissions_sql($channel['channel_id']); if($arr['pages']) $item_restrict = " AND (item_restrict & " . ITEM_WEBPAGE . ") "; else $item_restrict = " AND item_restrict = 0 "; if($arr['nouveau'] && ($client_mode & CLIENT_MODELOAD) && $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 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'); $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) { $page_type = ''; if($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($r) { q("update item_id set sid = '%s' where id = %d limit 1", dbesc(($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) ); } } }