<?php namespace Zotlabs\Module; use Zotlabs\Lib\Config; use Zotlabs\Lib\IConfig; use Zotlabs\Lib\Enotify; use Zotlabs\Web\Controller; use Zotlabs\Daemon\Master; use Zotlabs\Lib\Activity; use Zotlabs\Lib\ActivityStreams; use Zotlabs\Lib\LDSignatures; use Zotlabs\Web\HTTPSig; use Zotlabs\Lib\Libzot; use Zotlabs\Lib\Libsync; use Zotlabs\Lib\ThreadListener; use Zotlabs\Access\PermissionRoles; use App; require_once('include/crypto.php'); require_once('include/items.php'); require_once('include/security.php'); require_once('include/conversation.php'); /** * * This is the POST destination for most all locally posted * text stuff. This function handles status, wall-to-wall status, * local comments, and remote coments that are posted on this site * (as opposed to being delivered in a feed). * Also processed here are posts and comments coming through the * statusnet/twitter API. * All of these become an "item" which is our basic unit of * information. * Posts that originate externally or do not fall into the above * posting categories go through item_store() instead of this function. * */ class Item extends Controller { function init() { if (Libzot::is_zot_request()) { $conversation = false; $item_id = argv(1); if(! $item_id) http_status_exit(404, 'Not found'); $portable_id = EMPTY_STR; $item_normal_extra = sprintf(" and not verb in ('%s', '%s') ", dbesc(ACTIVITY_FOLLOW), dbesc(ACTIVITY_UNFOLLOW) ); $item_normal = " and item.item_hidden = 0 and item.item_type = 0 and item.item_unpublished = 0 and item.item_delayed = 0 and item.item_blocked = 0 $item_normal_extra "; $i = null; // do we have the item (at all)? $r = q("select * from item where mid = '%s' $item_normal limit 1", dbesc(z_root() . '/item/' . $item_id) ); if (! $r) { http_status_exit(404,'Not found'); } // process an authenticated fetch $sigdata = HTTPSig::verify(($_SERVER['REQUEST_METHOD'] === 'POST') ? file_get_contents('php://input') : EMPTY_STR); if ($sigdata['portable_id'] && $sigdata['header_valid']) { $portable_id = $sigdata['portable_id']; if (! check_channelallowed($portable_id)) { http_status_exit(403, 'Permission denied'); } if (! check_siteallowed($sigdata['signer'])) { http_status_exit(403, 'Permission denied'); } observer_auth($portable_id); $i = q("select id as item_id from item where mid = '%s' $item_normal and owner_xchan = '%s' limit 1", dbesc($r[0]['parent_mid']), dbesc($portable_id) ); } elseif (Config::get('system','require_authenticated_fetch',false)) { http_status_exit(403,'Permission denied'); } // if we don't have a parent id belonging to the signer see if we can obtain one as a visitor that we have permission to access // with a bias towards those items owned by channels on this site (item_wall = 1) $sql_extra = item_permissions_sql(0); if (! $i) { $i = q("select id as item_id from item where mid = '%s' $item_normal $sql_extra order by item_wall desc limit 1", dbesc($r[0]['parent_mid']) ); } if(! $i) { http_status_exit(403,'Forbidden'); } $parents_str = ids_to_querystr($i,'item_id'); $items = q("SELECT item.*, item.id AS item_id FROM item WHERE item.parent IN ( %s ) $item_normal order by item.id asc", dbesc($parents_str) ); if(! $items) { http_status_exit(404, 'Not found'); } xchan_query($items,true); $items = fetch_post_tags($items,true); if(! $items) http_status_exit(404, 'Not found'); $chan = channelx_by_n($items[0]['uid']); if(! $chan) http_status_exit(404, 'Not found'); if(! perm_is_allowed($chan['channel_id'],get_observer_hash(),'view_stream')) http_status_exit(403, 'Forbidden'); $i = Activity::encode_item_collection($items, 'conversation/' . $item_id, 'OrderedCollection'); if(! $i) http_status_exit(404, 'Not found'); if($portable_id && (! intval($items[0]['item_private']))) { ThreadListener::store(z_root() . '/item/' . $item_id, $portable_id); } $x = array_merge(['@context' => [ ACTIVITYSTREAMS_JSONLD_REV, 'https://w3id.org/security/v1', z_root() . ZOT_APSCHEMA_REV ]], $i); $headers = []; $headers['Content-Type'] = 'application/x-zot+json' ; $x['signature'] = LDSignatures::sign($x,$chan); $ret = json_encode($x, JSON_UNESCAPED_SLASHES); $headers['Digest'] = HTTPSig::generate_digest_header($ret); $headers['(request-target)'] = strtolower($_SERVER['REQUEST_METHOD']) . ' ' . $_SERVER['REQUEST_URI']; $h = HTTPSig::create_sig($headers,$chan['channel_prvkey'],channel_url($chan)); HTTPSig::set_headers($h); echo $ret; killme(); } if(ActivityStreams::is_as_request()) { $item_id = argv(1); if(! $item_id) http_status_exit(404, 'Not found'); $portable_id = EMPTY_STR; $item_normal_extra = sprintf(" and not verb in ('%s', '%s') ", dbesc(ACTIVITY_FOLLOW), dbesc(ACTIVITY_UNFOLLOW) ); $item_normal = " and item.item_hidden = 0 and item.item_type = 0 and item.item_unpublished = 0 and item.item_delayed = 0 and item.item_blocked = 0 $item_normal_extra "; $i = null; // do we have the item (at all)? // add preferential bias to item owners (item_wall = 1) $r = q("select * from item where mid = '%s' or uuid = '%s' $item_normal order by item_wall desc limit 1", dbesc(z_root() . '/item/' . $item_id), dbesc($item_id) ); if (! $r) { http_status_exit(404,'Not found'); } // process an authenticated fetch $sigdata = HTTPSig::verify(EMPTY_STR); if ($sigdata['portable_id'] && $sigdata['header_valid']) { $portable_id = $sigdata['portable_id']; if (! check_channelallowed($portable_id)) { http_status_exit(403, 'Permission denied'); } if (! check_siteallowed($sigdata['signer'])) { http_status_exit(403, 'Permission denied'); } observer_auth($portable_id); $i = q("select id as item_id from item where mid = '%s' $item_normal and owner_xchan = '%s' limit 1 ", dbesc($r[0]['parent_mid']), dbesc($portable_id) ); } elseif (Config::get('system','require_authenticated_fetch',false)) { http_status_exit(403,'Permission denied'); } // if we don't have a parent id belonging to the signer see if we can obtain one as a visitor that we have permission to access // with a bias towards those items owned by channels on this site (item_wall = 1) $sql_extra = item_permissions_sql(0); if (! $i) { $i = q("select id as item_id from item where mid = '%s' $item_normal $sql_extra order by item_wall desc limit 1", dbesc($r[0]['parent_mid']) ); } if(! $i) { http_status_exit(403,'Forbidden'); } // If we get to this point we have determined we can access the original in $r (fetched much further above), so use it. xchan_query($r,true); $items = fetch_post_tags($r,false); $chan = channelx_by_n($items[0]['uid']); if(! $chan) http_status_exit(404, 'Not found'); if(! perm_is_allowed($chan['channel_id'],get_observer_hash(),'view_stream')) http_status_exit(403, 'Forbidden'); $i = Activity::encode_item($items[0],true); if(! $i) http_status_exit(404, 'Not found'); if ($portable_id && (! intval($items[0]['item_private']))) { $c = q("select abook_id from abook where abook_channel = %d and abook_xchan = '%s'", intval($items[0]['uid']), dbesc($portable_id) ); if (! $c) { ThreadListener::store(z_root() . '/item/' . $item_id, $portable_id); } } $x = array_merge(['@context' => [ ACTIVITYSTREAMS_JSONLD_REV, 'https://w3id.org/security/v1', z_root() . ZOT_APSCHEMA_REV ]], $i); $headers = []; $headers['Content-Type'] = 'application/ld+json; profile="https://www.w3.org/ns/activitystreams"' ; $x['signature'] = LDSignatures::sign($x,$chan); $ret = json_encode($x, JSON_UNESCAPED_SLASHES); $headers['Date'] = datetime_convert('UTC','UTC', 'now', 'D, d M Y H:i:s \\G\\M\\T'); $headers['Digest'] = HTTPSig::generate_digest_header($ret); $headers['(request-target)'] = strtolower($_SERVER['REQUEST_METHOD']) . ' ' . $_SERVER['REQUEST_URI']; $h = HTTPSig::create_sig($headers,$chan['channel_prvkey'],channel_url($chan)); HTTPSig::set_headers($h); echo $ret; killme(); } if(argc() > 1 && argv(1) !== 'drop') { $x = q("select uid, item_wall, llink, mid from item where mid = '%s' or mid = '%s' ", dbesc(z_root() . '/item/' . argv(1)), dbesc(z_root() . '/activity/' . argv(1)) ); if($x) { foreach($x as $xv) { if (intval($xv['item_wall'])) { $c = channelx_by_n($xv['uid']); if ($c) { goaway($c['xchan_url'] . '?mid=' . gen_link_id($xv['mid'])); } } } goaway($x[0]['llink']); } http_status_exit(404, 'Not found'); } } function post() { // This will change. Figure out who the observer is and whether or not // they have permission to post here. Else ignore the post. if((! local_channel()) && (! remote_channel()) && (! x($_REQUEST,'anonname'))) return; $uid = local_channel(); $channel = null; $observer = null; $datarray = []; /** * Is this a reply to something? */ $parent = ((x($_REQUEST,'parent')) ? intval($_REQUEST['parent']) : 0); $parent_mid = ((x($_REQUEST,'parent_mid')) ? trim($_REQUEST['parent_mid']) : ''); $mode = (($_REQUEST['conv_mode'] === 'channel') ? 'channel' : 'network'); $remote_xchan = ((x($_REQUEST,'remote_xchan')) ? trim($_REQUEST['remote_xchan']) : false); $r = q("select * from xchan where xchan_hash = '%s' limit 1", dbesc($remote_xchan) ); if($r) $remote_observer = $r[0]; else $remote_xchan = $remote_observer = false; $profile_uid = ((x($_REQUEST,'profile_uid')) ? intval($_REQUEST['profile_uid']) : 0); require_once('include/channel.php'); $sys = get_sys_channel(); if($sys && $profile_uid && ($sys['channel_id'] == $profile_uid) && is_site_admin()) { $uid = intval($sys['channel_id']); $channel = $sys; $observer = $sys; } if(x($_REQUEST,'dropitems')) { require_once('include/items.php'); $arr_drop = explode(',',$_REQUEST['dropitems']); drop_items($arr_drop); $json = array('success' => 1); echo json_encode($json); killme(); } call_hooks('post_local_start', $_REQUEST); // logger('postvars ' . print_r($_REQUEST,true), LOGGER_DATA); $api_source = ((x($_REQUEST,'api_source') && $_REQUEST['api_source']) ? true : false); $consensus = intval($_REQUEST['consensus']); $nocomment = intval($_REQUEST['nocomment']); $is_poll = ((trim($_REQUEST['poll_answers'][0]) != '' && trim($_REQUEST['poll_answers'][1]) != '') ? true : false); // 'origin' (if non-zero) indicates that this network is where the message originated, // for the purpose of relaying comments to other conversation members. // If using the API from a device (leaf node) you must set origin to 1 (default) or leave unset. // If the API is used from another network with its own distribution // and deliveries, you may wish to set origin to 0 or false and allow the other // network to relay comments. // If you are unsure, it is prudent (and important) to leave it unset. $origin = (($api_source && array_key_exists('origin',$_REQUEST)) ? intval($_REQUEST['origin']) : 1); // To represent message-ids on other networks - this will create an iconfig record $namespace = (($api_source && array_key_exists('namespace',$_REQUEST)) ? strip_tags($_REQUEST['namespace']) : ''); $remote_id = (($api_source && array_key_exists('remote_id',$_REQUEST)) ? strip_tags($_REQUEST['remote_id']) : ''); $owner_hash = null; $message_id = ((x($_REQUEST,'message_id') && $api_source) ? strip_tags($_REQUEST['message_id']) : ''); $created = ((x($_REQUEST,'created')) ? datetime_convert(date_default_timezone_get(),'UTC',$_REQUEST['created']) : datetime_convert()); $post_id = ((x($_REQUEST,'post_id')) ? intval($_REQUEST['post_id']) : 0); $app = ((x($_REQUEST,'source')) ? strip_tags($_REQUEST['source']) : ''); $return_path = ((x($_REQUEST,'return')) ? $_REQUEST['return'] : ''); $preview = ((x($_REQUEST,'preview')) ? intval($_REQUEST['preview']) : 0); $categories = ((x($_REQUEST,'category')) ? escape_tags($_REQUEST['category']) : ''); $webpage = ((x($_REQUEST,'webpage')) ? intval($_REQUEST['webpage']) : 0); $item_obscured = ((x($_REQUEST,'obscured')) ? intval($_REQUEST['obscured']) : 0); $pagetitle = ((x($_REQUEST,'pagetitle')) ? escape_tags(urlencode($_REQUEST['pagetitle'])) : ''); $layout_mid = ((x($_REQUEST,'layout_mid')) ? escape_tags($_REQUEST['layout_mid']): ''); $plink = ((x($_REQUEST,'permalink')) ? escape_tags($_REQUEST['permalink']) : ''); $obj_type = ((x($_REQUEST,'obj_type')) ? escape_tags($_REQUEST['obj_type']) : ACTIVITY_OBJ_NOTE); // allow API to bulk load a bunch of imported items with sending out a bunch of posts. $nopush = ((x($_REQUEST,'nopush')) ? intval($_REQUEST['nopush']) : 0); /* * Check service class limits */ if ($uid && !(x($_REQUEST,'parent')) && !(x($_REQUEST,'post_id'))) { $ret = $this->item_check_service_class($uid,(($_REQUEST['webpage'] == ITEM_TYPE_WEBPAGE) ? true : false)); if (!$ret['success']) { notice( t($ret['message']) . EOL) ; if($api_source) return ( [ 'success' => false, 'message' => 'service class exception' ] ); if(x($_REQUEST,'return')) goaway(z_root() . "/" . $return_path ); killme(); } } if($pagetitle) { require_once('library/urlify/URLify.php'); $pagetitle = strtolower(\URLify::transliterate($pagetitle)); } $item_flags = $item_restrict = 0; $expires = NULL_DATE; $route = ''; $parent_item = null; $parent_contact = null; $thr_parent = ''; $parid = 0; $r = false; if($parent || $parent_mid) { if(! x($_REQUEST,'type')) $_REQUEST['type'] = 'net-comment'; if($obj_type == ACTIVITY_OBJ_NOTE) $obj_type = ACTIVITY_OBJ_COMMENT; if($parent) { $r = q("SELECT * FROM item WHERE id = %d LIMIT 1", intval($parent) ); } elseif($parent_mid && $uid) { // This is coming from an API source, and we are logged in $r = q("SELECT * FROM item WHERE mid = '%s' AND uid = %d LIMIT 1", dbesc($parent_mid), intval($uid) ); } // if this isn't the real parent of the conversation, find it if($r) { $parid = $r[0]['parent']; $parent_mid = $r[0]['mid']; if($r[0]['id'] != $r[0]['parent']) { $r = q("SELECT * FROM item WHERE id = parent AND parent = %d LIMIT 1", intval($parid) ); } // if interacting with a pubstream item, // create a copy of the parent in your stream if($r[0]['uid'] === $sys['channel_id'] && local_channel()) { $r = [ copy_of_pubitem(\App::get_channel(), $r[0]['mid']) ]; } } if(! $r) { notice( t('Unable to locate original post.') . EOL); if($api_source) return ( [ 'success' => false, 'message' => 'invalid post id' ] ); if(x($_REQUEST,'return')) goaway(z_root() . "/" . $return_path ); killme(); } xchan_query($r,true); $parent_item = $r[0]; $parent = $r[0]['id']; // multi-level threading - preserve the info but re-parent to our single level threading $thr_parent = $parent_mid; $route = $parent_item['route']; } $moderated = false; if(! $observer) { $observer = \App::get_observer(); if(! $observer) { $observer = anon_identity_init($_REQUEST); if($observer) { $moderated = true; $remote_xchan = $remote_observer = $observer; } } } if(! $observer) { notice( t('Permission denied.') . EOL) ; if($api_source) return ( [ 'success' => false, 'message' => 'permission denied' ] ); if(x($_REQUEST,'return')) goaway(z_root() . "/" . $return_path ); killme(); } if($parent) { logger('mod_item: item_post parent=' . $parent); $can_comment = false; $can_comment = can_comment_on_post($observer['xchan_hash'],$parent_item); if (!$can_comment) { if((array_key_exists('owner',$parent_item)) && intval($parent_item['owner']['abook_self'])==1 ) $can_comment = perm_is_allowed($profile_uid,$observer['xchan_hash'],'post_comments'); } if(! $can_comment) { notice( t('Permission denied.') . EOL) ; if($api_source) return ( [ 'success' => false, 'message' => 'permission denied' ] ); if(x($_REQUEST,'return')) goaway(z_root() . "/" . $return_path ); killme(); } } else { if(! perm_is_allowed($profile_uid,$observer['xchan_hash'],($webpage) ? 'write_pages' : 'post_wall')) { notice( t('Permission denied.') . EOL) ; if($api_source) return ( [ 'success' => false, 'message' => 'permission denied' ] ); if(x($_REQUEST,'return')) goaway(z_root() . "/" . $return_path ); killme(); } } // is this an edited post? $orig_post = null; if($namespace && $remote_id) { // It wasn't an internally generated post - see if we've got an item matching this remote service id $i = q("select iid from iconfig where cat = 'system' and k = '%s' and v = '%s' limit 1", dbesc($namespace), dbesc($remote_id) ); if($i) $post_id = $i[0]['iid']; } $iconfig = null; if($post_id) { $i = q("SELECT * FROM item WHERE uid = %d AND id = %d LIMIT 1", intval($profile_uid), intval($post_id) ); if(! count($i)) killme(); $orig_post = $i[0]; $iconfig = q("select * from iconfig where iid = %d", intval($post_id) ); } if(! $channel) { if($uid && $uid == $profile_uid) { $channel = \App::get_channel(); } else { // posting as yourself but not necessarily to a channel you control $r = q("select * from channel left join account on channel_account_id = account_id where channel_id = %d LIMIT 1", intval($profile_uid) ); if($r) $channel = $r[0]; } } if(! $channel) { logger("mod_item: no channel."); if($api_source) return ( [ 'success' => false, 'message' => 'no channel' ] ); if(x($_REQUEST,'return')) goaway(z_root() . "/" . $return_path ); killme(); } $owner_xchan = null; $r = q("select * from xchan where xchan_hash = '%s' limit 1", dbesc($channel['channel_hash']) ); if($r && count($r)) { $owner_xchan = $r[0]; } else { logger("mod_item: no owner."); if($api_source) return ( [ 'success' => false, 'message' => 'no owner' ] ); if(x($_REQUEST,'return')) goaway(z_root() . "/" . $return_path ); killme(); } $walltowall = false; $walltowall_comment = false; if($remote_xchan && ! $moderated) $observer = $remote_observer; if($observer) { logger('mod_item: post accepted from ' . $observer['xchan_name'] . ' for ' . $owner_xchan['xchan_name'], LOGGER_DEBUG); // wall-to-wall detection. // For top-level posts, if the author and owner are different it's a wall-to-wall // For comments, We need to additionally look at the parent and see if it's a wall post that originated locally. if($observer['xchan_name'] != $owner_xchan['xchan_name']) { if(($parent_item) && ($parent_item['item_wall'] && $parent_item['item_origin'])) { $walltowall_comment = true; $walltowall = true; } if(! $parent) { $walltowall = true; } } } $acl = new \Zotlabs\Access\AccessList($channel); $view_policy = \Zotlabs\Access\PermissionLimits::Get($channel['channel_id'],'view_stream'); $comment_policy = \Zotlabs\Access\PermissionLimits::Get($channel['channel_id'],'post_comments'); $public_policy = ((x($_REQUEST,'public_policy')) ? escape_tags($_REQUEST['public_policy']) : map_scope($view_policy,true)); if($webpage) $public_policy = ''; if($public_policy) $private = 1; if($orig_post) { $private = 0; // webpages are allowed to change ACLs after the fact. Normal conversation items aren't. if($webpage) { $acl->set_from_array($_REQUEST); } else { $acl->set($orig_post); $public_policy = $orig_post['public_policy']; $private = $orig_post['item_private']; } if($public_policy || $acl->is_private()) { $private = (($private) ? $private : 1); } $location = $orig_post['location']; $coord = $orig_post['coord']; $verb = $orig_post['verb']; $app = $orig_post['app']; $title = escape_tags(trim($_REQUEST['title'])); $summary = trim($_REQUEST['summary']); $body = trim($_REQUEST['body']); $item_flags = $orig_post['item_flags']; $item_origin = $orig_post['item_origin']; $item_unseen = $orig_post['item_unseen']; $item_starred = $orig_post['item_starred']; $item_uplink = $orig_post['item_uplink']; $item_consensus = $orig_post['item_consensus']; $item_wall = $orig_post['item_wall']; $item_thread_top = $orig_post['item_thread_top']; $item_notshown = $orig_post['item_notshown']; $item_nsfw = $orig_post['item_nsfw']; $item_relay = $orig_post['item_relay']; $item_mentionsme = $orig_post['item_mentionsme']; $item_nocomment = $orig_post['item_nocomment']; $item_obscured = $orig_post['item_obscured']; $item_verified = $orig_post['item_verified']; $item_retained = $orig_post['item_retained']; $item_rss = $orig_post['item_rss']; $item_deleted = $orig_post['item_deleted']; $item_type = $orig_post['item_type']; $item_hidden = $orig_post['item_hidden']; $item_unpublished = $orig_post['item_unpublished']; $item_delayed = $orig_post['item_delayed']; $item_pending_remove = $orig_post['item_pending_remove']; $item_blocked = $orig_post['item_blocked']; $postopts = $orig_post['postopts']; $created = $orig_post['created']; $expires = $orig_post['expires']; $mid = $orig_post['mid']; $parent_mid = $orig_post['parent_mid']; $plink = $orig_post['plink']; } else { if(! $walltowall) { if((array_key_exists('contact_allow',$_REQUEST)) || (array_key_exists('group_allow',$_REQUEST)) || (array_key_exists('contact_deny',$_REQUEST)) || (array_key_exists('group_deny',$_REQUEST))) { $acl->set_from_array($_REQUEST); } elseif(! $api_source) { // if no ACL has been defined and we aren't using the API, the form // didn't send us any parameters. This means there's no ACL or it has // been reset to the default audience. // If $api_source is set and there are no ACL parameters, we default // to the channel permissions which were set in the ACL contructor. $acl->set(array('allow_cid' => '', 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '')); } } $location = notags(trim($_REQUEST['location'])); $coord = notags(trim($_REQUEST['coord'])); $verb = notags(trim($_REQUEST['verb'])); $title = escape_tags(trim($_REQUEST['title'])); $summary = trim($_REQUEST['summary']); $body = trim($_REQUEST['body']); $body .= trim($_REQUEST['attachment']); $postopts = ''; $allow_empty = ((array_key_exists('allow_empty',$_REQUEST)) ? intval($_REQUEST['allow_empty']) : 0); $private = (($private) ? $private : intval($acl->is_private() || ($public_policy))); // If this is a comment, set the permissions from the parent. if($parent_item) { $acl->set($parent_item); $private = intval($acl->is_private() || $parent_item['item_private']); $public_policy = $parent_item['public_policy']; $owner_hash = $parent_item['owner_xchan']; $webpage = $parent_item['item_type']; } if((! $allow_empty) && (! strlen($body))) { if($preview) killme(); info( t('Empty post discarded.') . EOL ); if($api_source) return ( [ 'success' => false, 'message' => 'no content' ] ); if(x($_REQUEST,'return')) goaway(z_root() . "/" . $return_path ); killme(); } } if(feature_enabled($profile_uid,'content_expire')) { if(x($_REQUEST,'expire')) { $expires = datetime_convert(date_default_timezone_get(),'UTC', $_REQUEST['expire']); if($expires <= datetime_convert()) $expires = NULL_DATE; } } $mimetype = notags(trim($_REQUEST['mimetype'])); if(! $mimetype) $mimetype = 'text/bbcode'; $execflag = ((intval($uid) == intval($profile_uid) && ($channel['channel_pageflags'] & PAGE_ALLOWCODE)) ? true : false); if($preview) { $summary = z_input_filter($summary,$mimetype,$execflag); $body = z_input_filter($body,$mimetype,$execflag); } $arr = [ 'profile_uid' => $profile_uid, 'summary' => $summary, 'content' => $body, 'mimetype' => $mimetype ]; call_hooks('post_content',$arr); $summary = $arr['summary']; $body = $arr['content']; $mimetype = $arr['mimetype']; $gacl = $acl->get(); $str_contact_allow = $gacl['allow_cid']; $str_group_allow = $gacl['allow_gid']; $str_contact_deny = $gacl['deny_cid']; $str_group_deny = $gacl['deny_gid']; $groupww = false; // if this is a wall-to-wall post to a group, turn it into a direct message $role = get_pconfig($profile_uid,'system','permissions_role'); $rolesettings = PermissionRoles::role_perms($role); $channel_type = isset($rolesettings['channel_type']) ? $rolesettings['channel_type'] : 'normal'; $is_group = (($channel_type === 'group') ? true : false); if (($is_group) && ($walltowall) && (! $walltowall_comment)) { $groupww = true; $str_contact_allow = $owner_xchan['xchan_hash']; $str_group_allow = ''; } $post_tags = []; if($mimetype === 'text/bbcode') { require_once('include/text.php'); // BBCODE alert: the following functions assume bbcode input // and will require alternatives for alternative content-types (text/html, text/markdown, text/plain, etc.) // we may need virtual or template classes to implement the possible alternatives $body = cleanup_bbcode($body); // Look for tags and linkify them $results = linkify_tags($body, ($uid) ? $uid : $profile_uid); if($results) { // Set permissions based on tag replacements set_linkified_perms($results, $str_contact_allow, $str_group_allow, $profile_uid, $private, $parent_item); foreach($results as $result) { $success = $result['success']; if($success['replaced']) { $post_tags[] = array( 'uid' => $profile_uid, 'ttype' => $success['termtype'], 'otype' => TERM_OBJ_POST, 'term' => $success['term'], 'url' => $success['url'] ); } } } if(($str_contact_allow) && (! $str_group_allow)) { // direct message - private between individual channels but not groups $private = 2; } /** * * When a photo was uploaded into the message using the (profile wall) ajax * uploader, The permissions are initially set to disallow anybody but the * owner from seeing it. This is because the permissions may not yet have been * set for the post. If it's private, the photo permissions should be set * appropriately. But we didn't know the final permissions on the post until * now. So now we'll look for links of uploaded photos and attachments that are in the * post and set them to the same permissions as the post itself. * * If the post was end-to-end encrypted we can't find images and attachments in the body, * use our media_str input instead which only contains these elements - but only do this * when encrypted content exists because the photo/attachment may have been removed from * the post and we should keep it private. If it's encrypted we have no way of knowing * so we'll set the permissions regardless and realise that the media may not be * referenced in the post. * */ if(! $preview) { fix_attached_photo_permissions($profile_uid,$owner_xchan['xchan_hash'],((strpos($body,'[/crypt]')) ? $_POST['media_str'] : $body),$str_contact_allow,$str_group_allow,$str_contact_deny,$str_group_deny); fix_attached_photo_permissions($profile_uid,$owner_xchan['xchan_hash'],((strpos($summary,'[/crypt]')) ? $_POST['media_str'] : $summary),$str_contact_allow,$str_group_allow,$str_contact_deny,$str_group_deny); fix_attached_file_permissions($channel,$observer['xchan_hash'],((strpos($body,'[/crypt]')) ? $_POST['media_str'] : $body),$str_contact_allow,$str_group_allow,$str_contact_deny,$str_group_deny); } $attachments = ''; $match = false; if(preg_match_all('/(\[attachment\](.*?)\[\/attachment\])/',$body,$match)) { $attachments = array(); $i = 0; foreach($match[2] as $mtch) { $attach_link = ''; $hash = substr($mtch,0,strpos($mtch,',')); $rev = intval(substr($mtch,strpos($mtch,','))); $r = attach_by_hash_nodata($hash, $observer['xchan_hash'], $rev); if($r['success']) { $attachments[] = array( 'href' => z_root() . '/attach/' . $r['data']['hash'], 'length' => $r['data']['filesize'], 'type' => $r['data']['filetype'], 'title' => urlencode($r['data']['filename']), 'revision' => $r['data']['revision'] ); } $body = str_replace($match[1][$i],$attach_link,$body); $i++; } } if(preg_match_all('/(\[share=(.*?)\](.*?)\[\/share\])/',$body,$match)) { // process share by id $i = 0; foreach($match[2] as $mtch) { $reshare = new \Zotlabs\Lib\Share($mtch); $body = str_replace($match[1][$i],$reshare->bbcode(),$body); $i++; } } // BBCODE end alert } if(strlen($categories)) { $cats = explode(',',$categories); foreach($cats as $cat) { if($webpage == ITEM_TYPE_CARD) { $catlink = z_root() . '/cards/' . $channel['channel_address'] . '?f=&cat=' . urlencode(trim($cat)); } elseif($webpage == ITEM_TYPE_ARTICLE) { $catlink = z_root() . '/articles/' . $channel['channel_address'] . '?f=&cat=' . urlencode(trim($cat)); } else { $catlink = $owner_xchan['xchan_url'] . '?f=&cat=' . urlencode(trim($cat)); } $post_tags[] = array( 'uid' => $profile_uid, 'ttype' => TERM_CATEGORY, 'otype' => TERM_OBJ_POST, 'term' => trim($cat), 'url' => $catlink ); } } if($orig_post) { // preserve original tags $t = q("select * from term where oid = %d and otype = %d and uid = %d and ttype in ( %d, %d, %d )", intval($orig_post['id']), intval(TERM_OBJ_POST), intval($profile_uid), intval(TERM_UNKNOWN), intval(TERM_FILE), intval(TERM_COMMUNITYTAG) ); if($t) { foreach($t as $t1) { $post_tags[] = array( 'uid' => $profile_uid, 'ttype' => $t1['ttype'], 'otype' => TERM_OBJ_POST, 'term' => $t1['term'], 'url' => $t1['url'], ); } } } $item_unseen = ((local_channel() != $profile_uid) ? 1 : 0); $item_wall = (($_REQUEST['type'] === 'wall' || $_REQUEST['type'] === 'wall-comment') ? 1 : 0); $item_origin = (($origin) ? 1 : 0); $item_consensus = (($consensus) ? 1 : 0); $item_nocomment = (($nocomment) ? 1 : 0); // determine if this is a wall post if($parent) { $item_wall = $parent_item['item_wall']; } else { if(! $webpage) { $item_wall = 1; } } if($moderated) $item_blocked = ITEM_MODERATED; if(! strlen($verb)) $verb = ACTIVITY_POST ; $notify_type = (($parent) ? 'comment-new' : 'wall-new' ); if(! $mid) { $uuid = (($message_id) ? $message_id : item_message_id()); $mid = z_root() . '/item/' . $uuid; } if($is_poll) { $poll = [ 'question' => $body, 'answers' => $_REQUEST['poll_answers'], 'multiple_answers' => $_REQUEST['poll_multiple_answers'], 'expire_value' => $_REQUEST['poll_expire_value'], 'expire_unit' => $_REQUEST['poll_expire_unit'] ]; $obj = $this->extract_poll_data($poll, [ 'item_private' => $private, 'allow_cid' => $str_contact_allow, 'allow_gid' => $str_contact_deny ]); } else { $obj = $this->extract_bb_poll_data($body,[ 'item_private' => $private, 'allow_cid' => $str_contact_allow, 'allow_gid' => $str_contact_deny ]); } if ($obj) { $obj['url'] = $mid; $obj['attributedTo'] = channel_url($channel); $datarray['obj'] = $obj; $obj_type = 'Question'; } if(! $parent_mid) { $parent_mid = $mid; } if($parent_item) $parent_mid = $parent_item['mid']; // Fallback so that we alway have a thr_parent if(!$thr_parent) $thr_parent = $mid; $item_thread_top = ((! $parent) ? 1 : 0); // fix permalinks for cards if($webpage == ITEM_TYPE_CARD) { $plink = z_root() . '/cards/' . $channel['channel_address'] . '/' . (($pagetitle) ? $pagetitle : $uuid); } if(($parent_item) && ($parent_item['item_type'] == ITEM_TYPE_CARD)) { $r = q("select v from iconfig where iconfig.cat = 'system' and iconfig.k = 'CARD' and iconfig.iid = %d limit 1", intval($parent_item['id']) ); if($r) { $plink = z_root() . '/cards/' . $channel['channel_address'] . '/' . $r[0]['v']; } } if($webpage == ITEM_TYPE_ARTICLE) { $plink = z_root() . '/articles/' . $channel['channel_address'] . '/' . (($pagetitle) ? $pagetitle : $uuid); } if(($parent_item) && ($parent_item['item_type'] == ITEM_TYPE_ARTICLE)) { $r = q("select v from iconfig where iconfig.cat = 'system' and iconfig.k = 'ARTICLE' and iconfig.iid = %d limit 1", intval($parent_item['id']) ); if($r) { $plink = z_root() . '/articles/' . $channel['channel_address'] . '/' . $r[0]['v']; } } if ((! $plink) && ($item_thread_top)) { // $plink = z_root() . '/channel/' . $channel['channel_address'] . '/?f=&mid=' . gen_link_id($mid); // $plink = substr($plink,0,190); $plink = $mid; } if ($datarray['obj']) { $datarray['obj']['id'] = $mid; } $datarray['aid'] = $channel['channel_account_id']; $datarray['uid'] = $profile_uid; $datarray['uuid'] = $uuid; $datarray['owner_xchan'] = (($owner_hash) ? $owner_hash : $owner_xchan['xchan_hash']); $datarray['author_xchan'] = $observer['xchan_hash']; $datarray['created'] = $created; $datarray['edited'] = (($orig_post) ? datetime_convert() : $created); $datarray['expires'] = $expires; $datarray['commented'] = (($orig_post) ? datetime_convert() : $created); $datarray['received'] = (($orig_post) ? datetime_convert() : $created); $datarray['changed'] = (($orig_post) ? datetime_convert() : $created); $datarray['mid'] = $mid; $datarray['parent_mid'] = $parent_mid; $datarray['mimetype'] = $mimetype; $datarray['title'] = $title; $datarray['summary'] = $summary; $datarray['body'] = $body; $datarray['app'] = $app; $datarray['location'] = $location; $datarray['coord'] = $coord; $datarray['verb'] = $verb; $datarray['obj_type'] = $obj_type; $datarray['allow_cid'] = $str_contact_allow; $datarray['allow_gid'] = $str_group_allow; $datarray['deny_cid'] = $str_contact_deny; $datarray['deny_gid'] = $str_group_deny; $datarray['attach'] = $attachments; $datarray['thr_parent'] = $thr_parent; $datarray['postopts'] = $postopts; $datarray['item_unseen'] = intval($item_unseen); $datarray['item_wall'] = intval($item_wall); $datarray['item_origin'] = intval($item_origin); $datarray['item_type'] = $webpage; $datarray['item_private'] = intval($private); $datarray['item_thread_top'] = intval($item_thread_top); $datarray['item_unseen'] = intval($item_unseen); $datarray['item_starred'] = intval($item_starred); $datarray['item_uplink'] = intval($item_uplink); $datarray['item_consensus'] = intval($item_consensus); $datarray['item_notshown'] = intval($item_notshown); $datarray['item_nsfw'] = intval($item_nsfw); $datarray['item_relay'] = intval($item_relay); $datarray['item_mentionsme'] = intval($item_mentionsme); $datarray['item_nocomment'] = intval($item_nocomment); $datarray['item_obscured'] = intval($item_obscured); $datarray['item_verified'] = intval($item_verified); $datarray['item_retained'] = intval($item_retained); $datarray['item_rss'] = intval($item_rss); $datarray['item_deleted'] = intval($item_deleted); $datarray['item_hidden'] = intval($item_hidden); $datarray['item_unpublished'] = intval($item_unpublished); $datarray['item_delayed'] = intval($item_delayed); $datarray['item_pending_remove'] = intval($item_pending_remove); $datarray['item_blocked'] = intval($item_blocked); $datarray['layout_mid'] = $layout_mid; $datarray['public_policy'] = $public_policy; $datarray['comment_policy'] = map_scope($comment_policy); $datarray['term'] = array_unique($post_tags, SORT_REGULAR); $datarray['plink'] = $plink; $datarray['route'] = $route; // A specific ACL over-rides public_policy completely if(! empty_acl($datarray)) $datarray['public_policy'] = ''; if($iconfig) $datarray['iconfig'] = $iconfig; // preview mode - prepare the body for display and send it via json if($preview) { require_once('include/conversation.php'); $datarray['owner'] = $owner_xchan; $datarray['author'] = $observer; $datarray['attach'] = json_encode($datarray['attach']); $o = conversation(array($datarray),'search',false,'preview'); // logger('preview: ' . $o, LOGGER_DEBUG); echo json_encode(array('preview' => $o)); killme(); } if($orig_post) $datarray['edit'] = true; // suppress duplicates, *unless* you're editing an existing post. This could get picked up // as a duplicate if you're editing it very soon after posting it initially and you edited // some attribute besides the content, such as title or categories. if(feature_enabled($profile_uid,'suppress_duplicates') && (! $orig_post)) { $z = q("select created from item where uid = %d and created > %s - INTERVAL %s and body = '%s' limit 1", intval($profile_uid), db_utcnow(), db_quoteinterval('2 MINUTE'), dbesc($body) ); if($z) { $datarray['cancel'] = 1; notice( t('Duplicate post suppressed.') . EOL); logger('Duplicate post. Faking plugin cancel.'); } } call_hooks('post_local',$datarray); if(x($datarray,'cancel')) { logger('mod_item: post cancelled by plugin or duplicate suppressed.'); if($return_path) goaway(z_root() . "/" . $return_path); if($api_source) return ( [ 'success' => false, 'message' => 'operation cancelled' ] ); $json = array('cancel' => 1); $json['reload'] = z_root() . '/' . $_REQUEST['jsreload']; echo json_encode($json); killme(); } if(mb_strlen($datarray['title']) > 191) $datarray['title'] = mb_substr($datarray['title'],0,191); if($webpage) { IConfig::Set($datarray,'system', webpage_to_namespace($webpage), (($pagetitle) ? $pagetitle : basename($datarray['mid'])), true); } elseif($namespace) { IConfig::Set($datarray,'system', $namespace, (($remote_id) ? $remote_id : basename($datarray['mid'])), true); } if($orig_post) { $datarray['id'] = $post_id; $x = item_store_update($datarray,$execflag); // We only need edit activities for other federated protocols // which do not support edits natively. While this does federate // edits, it presents a number of issues locally - such as #757 and #758. // The SQL check for an edit activity would not perform that well so to fix these issues // requires an additional item flag (perhaps 'item_edit_activity') that we can add to the // query for searches and notifications. // For now we'll just forget about trying to make edits work on network protocols that // don't support them. // item_create_edit_activity($x); if(! $parent) { $r = q("select * from item where id = %d", intval($post_id) ); if($r) { xchan_query($r); $sync_item = fetch_post_tags($r); Libsync::build_sync_packet($profile_uid,array('item' => array(encode_item($sync_item[0],true)))); } } if(! $nopush) Master::Summon([ 'Notifier', 'edit_post', $post_id ]); if($api_source) return($x); if((x($_REQUEST,'return')) && strlen($return_path)) { logger('return: ' . $return_path); goaway(z_root() . "/" . $return_path ); } killme(); } else $post_id = 0; $post = item_store($datarray,$execflag); $post_id = $post['item_id']; $datarray = $post['item']; if($post_id) { logger('mod_item: saved item ' . $post_id); if($parent) { // prevent conversations which you are involved from being expired if(local_channel()) retain_item($parent); // only send comment notification if this is a wall-to-wall comment, // otherwise it will happen during delivery if(($datarray['owner_xchan'] != $datarray['author_xchan']) && (intval($parent_item['item_wall']))) { Enotify::submit(array( 'type' => NOTIFY_COMMENT, 'from_xchan' => $datarray['author_xchan'], 'to_xchan' => $datarray['owner_xchan'], 'item' => $datarray, 'link' => z_root() . '/display/' . gen_link_id($datarray['mid']), 'verb' => ACTIVITY_POST, 'otype' => 'item', 'parent' => $parent, 'parent_mid' => $parent_item['mid'] )); } } else { $parent = $post_id; if(($datarray['owner_xchan'] != $datarray['author_xchan']) && ($datarray['item_type'] == ITEM_TYPE_POST)) { Enotify::submit(array( 'type' => NOTIFY_WALL, 'from_xchan' => $datarray['author_xchan'], 'to_xchan' => $datarray['owner_xchan'], 'item' => $datarray, 'link' => z_root() . '/display/' . gen_link_id($datarray['mid']), 'verb' => ACTIVITY_POST, 'otype' => 'item' )); } if($uid && $uid == $profile_uid && (is_item_normal($datarray))) { q("update channel set channel_lastpost = '%s' where channel_id = %d", dbesc(datetime_convert()), intval($uid) ); } } // photo comments turn the corresponding item visible to the profile wall // This way we don't see every picture in your new photo album posted to your wall at once. // They will show up as people comment on them. if(intval($parent_item['item_hidden'])) { $r = q("UPDATE item SET item_hidden = 0 WHERE id = %d", intval($parent_item['id']) ); } } else { logger('mod_item: unable to retrieve post that was just stored.'); notice( t('System error. Post not saved.') . EOL); if($return_path) goaway(z_root() . "/" . $return_path ); if($api_source) return ( [ 'success' => false, 'message' => 'system error' ] ); killme(); } if($parent || $datarray['item_private'] == 1) { $r = q("select * from item where id = %d", intval($post_id) ); if($r) { xchan_query($r); $sync_item = fetch_post_tags($r); Libsync::build_sync_packet($profile_uid,array('item' => array(encode_item($sync_item[0],true)))); } } $datarray['id'] = $post_id; $datarray['llink'] = z_root() . '/display/' . gen_link_id($datarray['mid']); call_hooks('post_local_end', $datarray); if ($groupww) { $nopush = false; } if(! $nopush) Master::Summon([ 'Notifier', $notify_type, $post_id ]); logger('post_complete'); if($moderated) { info(t('Your comment is awaiting approval.') . EOL); } // figure out how to return, depending on from whence we came if($api_source) return $post; if($return_path) { goaway(z_root() . "/" . $return_path); } if($mode === 'channel') profile_load($channel['channel_address']); $item[] = $datarray; $item[0]['owner'] = $owner_xchan; $item[0]['author'] = $observer; $item[0]['attach'] = $datarray['attach']; $json = [ 'success' => 1, 'id' => $post_id, 'html' => conversation($item,$mode,true,'r_preview'), ]; if(x($_REQUEST,'jsreload') && strlen($_REQUEST['jsreload'])) $json['reload'] = z_root() . '/' . $_REQUEST['jsreload']; logger('post_json: ' . print_r($json,true), LOGGER_DEBUG); echo json_encode($json); killme(); // NOTREACHED } function get() { if((! local_channel()) && (! remote_channel())) return; if((argc() == 3) && (argv(1) === 'drop') && intval(argv(2))) { require_once('include/items.php'); $i = q("select id, uid, item_origin, author_xchan, owner_xchan, source_xchan, item_type from item where id = %d limit 1", intval(argv(2)) ); if($i) { $can_delete = false; $local_delete = false; if(local_channel() && local_channel() == $i[0]['uid']) { $local_delete = true; } $ob_hash = get_observer_hash(); if($ob_hash && ($ob_hash === $i[0]['author_xchan'] || $ob_hash === $i[0]['owner_xchan'] || $ob_hash === $i[0]['source_xchan'])) { $can_delete = true; } // The site admin can delete any post/item on the site. // If the item originated on this site+channel the deletion will propagate downstream. // Otherwise just the local copy is removed. if(is_site_admin()) { $local_delete = true; if(intval($i[0]['item_origin'])) $can_delete = true; } if(! ($can_delete || $local_delete)) { notice( t('Permission denied.') . EOL); return; } // if this is a different page type or it's just a local delete // but not by the item author or owner, do a simple deletion $complex = false; if(intval($i[0]['item_type']) || ($local_delete && (! $can_delete))) { drop_item($i[0]['id']); } else { // complex deletion that needs to propagate and be performed in phases drop_item($i[0]['id'],true,DROPITEM_PHASE1); $complex = true; } $r = q("select * from item where id = %d", intval($i[0]['id']) ); if($r) { xchan_query($r); $sync_item = fetch_post_tags($r); Libsync::build_sync_packet($i[0]['uid'],array('item' => array(encode_item($sync_item[0],true)))); } if($complex) { tag_deliver($i[0]['uid'],$i[0]['id']); } } } } function item_check_service_class($channel_id,$iswebpage) { $ret = array('success' => false, 'message' => ''); if ($iswebpage) { $r = q("select count(i.id) as total from item i right join channel c on (i.author_xchan=c.channel_hash and i.uid=c.channel_id ) and i.parent=i.id and i.item_type = %d and i.item_deleted = 0 and i.uid= %d ", intval(ITEM_TYPE_WEBPAGE), intval($channel_id) ); } else { $r = q("select count(id) as total from item where parent = id and item_wall = 1 and uid = %d " . item_normal(), intval($channel_id) ); } if(! $r) { $ret['message'] = t('Unable to obtain post information from database.'); return $ret; } if (!$iswebpage) { $max = engr_units_to_bytes(service_class_fetch($channel_id,'total_items')); if(! service_class_allows($channel_id,'total_items',$r[0]['total'])) { $result['message'] .= upgrade_message() . sprintf( t('You have reached your limit of %1$.0f top level posts.'),$max); return $result; } } else { $max = engr_units_to_bytes(service_class_fetch($channel_id,'total_pages')); if(! service_class_allows($channel_id,'total_pages',$r[0]['total'])) { $result['message'] .= upgrade_message() . sprintf( t('You have reached your limit of %1$.0f webpages.'),$max); return $result; } } $ret['success'] = true; return $ret; } function extract_bb_poll_data(&$body,$item) { $multiple = false; if (strpos($body,'[/question]') === false && strpos($body,'[/answer]') === false) { return false; } if (strpos($body,'[nobb]') !== false) { return false; } $obj = []; $ptr = []; $matches = null; $obj['type'] = 'Question'; if (preg_match_all('/\[answer\](.*?)\[\/answer\]/ism',$body,$matches,PREG_SET_ORDER)) { foreach ($matches as $match) { $ptr[] = [ 'name' => $match[1], 'type' => 'Note', 'replies' => [ 'type' => 'Collection', 'totalItems' => 0 ]]; $body = str_replace('[answer]' . $match[1] . '[/answer]', EMPTY_STR, $body); } } $matches = null; if (preg_match('/\[question\](.*?)\[\/question\]/ism',$body,$matches)) { $obj['content'] = bbcode($matches[1]); $body = str_replace('[question]' . $matches[1] . '[/question]', $matches[1], $body); $obj['oneOf'] = $ptr; } $matches = null; if (preg_match('/\[question=multiple\](.*?)\[\/question\]/ism',$body,$matches)) { $obj['content'] = bbcode($matches[1]); $body = str_replace('[question=multiple]' . $matches[1] . '[/question]', $matches[1], $body); $obj['anyOf'] = $ptr; } $matches = null; if (preg_match('/\[ends\](.*?)\[\/ends\]/ism',$body,$matches)) { $obj['endTime'] = datetime_convert(date_default_timezone_get(),'UTC', $matches[1],ATOM_TIME); $body = str_replace('[ends]' . $matches[1] . '[/ends]', EMPTY_STR, $body); } if ($item['item_private']) { $obj['to'] = Activity::map_acl($item); } else { $obj['to'] = [ ACTIVITY_PUBLIC_INBOX ]; } return $obj; } function extract_poll_data($poll, $item) { $multiple = intval($poll['multiple_answers']); $expire_value = intval($poll['expire_value']); $expire_unit = $poll['expire_unit']; $question = $poll['question']; $answers = $poll['answers']; $obj = []; $ptr = []; $obj['type'] = 'Question'; $obj['content'] = bbcode($question); foreach($answers as $answer) { if(trim($answer)) $ptr[] = [ 'name' => escape_tags($answer), 'type' => 'Note', 'replies' => [ 'type' => 'Collection', 'totalItems' => 0 ]]; } if($multiple) { $obj['anyOf'] = $ptr; } else { $obj['oneOf'] = $ptr; } $obj['endTime'] = datetime_convert(date_default_timezone_get(), 'UTC', 'now + ' . $expire_value . ' ' . $expire_unit, ATOM_TIME); if ($item['item_private']) { $obj['to'] = Activity::map_acl($item); } else { $obj['to'] = [ ACTIVITY_PUBLIC_INBOX ]; } return $obj; } }