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