YunoHost-Apps/hubzilla_ynh
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hubzilla_ynh/sources/include/dir_fns.php

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PHP
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<?php
/**
* @file include/dir_fns.php
*/
require_once('include/permissions.php');
/**
* @brief
*
* @param int $dirmode
* @return array
*/
function find_upstream_directory($dirmode) {
global $DIRECTORY_FALLBACK_SERVERS;
$preferred = get_config('system','directory_server');
if (! $preferred) {
/*
* No directory has yet been set. For most sites, pick one at random
* from our list of directory servers. However, if we're a directory
* server ourself, point at the local instance
* We will then set this value so this should only ever happen once.
* Ideally there will be an admin setting to change to a different
* directory server if you don't like our choice or if circumstances change.
*/
$dirmode = intval(get_config('system','directory_mode'));
if ($dirmode == DIRECTORY_MODE_NORMAL) {
$toss = mt_rand(0,count($DIRECTORY_FALLBACK_SERVERS));
$preferred = $DIRECTORY_FALLBACK_SERVERS[$toss];
set_config('system','directory_server',$preferred);
} else{
set_config('system','directory_server',z_root());
}
}
return array('url' => $preferred);
}
/**
* Directories may come and go over time. We will need to check that our
* directory server is still valid occasionally, and reset to something that
* is if our directory has gone offline for any reason
*/
function check_upstream_directory() {
$directory = get_config('system', 'directory_server');
// it's possible there is no directory server configured and the local hub is being used.
// If so, default to preserving the absence of a specific server setting.
$isadir = true;
if ($directory) {
$h = parse_url($directory);
if ($h) {
$x = zot_finger('[system]@' . $h['host']);
if ($x['success']) {
$j = json_decode($x['body'], true);
if (array_key_exists('site', $j) && array_key_exists('directory_mode', $j['site'])) {
if ($j['site']['directory_mode'] === 'normal') {
$isadir = false;
}
}
}
}
}
if (! $isadir)
set_config('system', 'directory_server', '');
}
function get_directory_setting($observer, $setting) {
if ($observer)
$ret = get_xconfig($observer, 'directory', $setting);
else
$ret = ((array_key_exists($setting,$_SESSION)) ? intval($_SESSION[$setting]) : false);
if($ret === false)
$ret = get_config('directory', $setting);
if($setting == 'safemode' && $ret === false)
$ret = 1;
return $ret;
}
/**
* @brief Called by the directory_sort widget.
*/
function dir_sort_links() {
$safe_mode = 1;
$observer = get_observer_hash();
$safe_mode = get_directory_setting($observer, 'safemode');
$globaldir = get_directory_setting($observer, 'globaldir');
$pubforums = get_directory_setting($observer, 'pubforums');
// Build urls without order and pubforums so it's easy to tack on the changed value
// Probably there's an easier way to do this
$directory_sort_order = get_config('system','directory_sort_order');
if(! $directory_sort_order)
$directory_sort_order = 'date';
$current_order = (($_REQUEST['order']) ? $_REQUEST['order'] : $directory_sort_order);
$suggest = (($_REQUEST['suggest']) ? '&suggest=' . $_REQUEST['suggest'] : '');
$url = 'directory?f=';
$tmp = array_merge($_GET,$_POST);
unset($tmp['suggest']);
unset($tmp['pubforums']);
unset($tmp['global']);
unset($tmp['safe']);
unset($tmp['q']);
unset($tmp['f']);
$forumsurl = $url . http_build_query($tmp) . $suggest;
$o = replace_macros(get_markup_template('dir_sort_links.tpl'), array(
'$header' => t('Directory Options'),
'$forumsurl' => $forumsurl,
'$safemode' => array('safemode', t('Safe Mode'),$safe_mode,'',array(t('No'), t('Yes')),' onchange=\'window.location.href="' . $forumsurl . '&safe="+(this.checked ? 1 : 0)\''),
'$pubforums' => array('pubforums', t('Public Forums Only'),$pubforums,'',array(t('No'), t('Yes')),' onchange=\'window.location.href="' . $forumsurl . '&pubforums="+(this.checked ? 1 : 0)\''),
'$globaldir' => array('globaldir', t('This Website Only'), 1-intval($globaldir),'',array(t('No'), t('Yes')),' onchange=\'window.location.href="' . $forumsurl . '&global="+(this.checked ? 0 : 1)\''),
));
return $o;
}
/**
* @brief Checks the directory mode of this hub.
*
* Checks the directory mode of this hub to see if it is some form of directory server. If it is,
* get the directory realm of this hub. Fetch a list of all other directory servers in this realm and request
* a directory sync packet. This will contain both directory updates and new ratings. Store these all in the DB.
* In the case of updates, we will query each of them asynchronously from a poller task. Ratings are stored
* directly if the rater's signature matches.
*
* @param int $dirmode;
*/
function sync_directories($dirmode) {
if ($dirmode == DIRECTORY_MODE_STANDALONE || $dirmode == DIRECTORY_MODE_NORMAL)
return;
$realm = get_directory_realm();
if ($realm == DIRECTORY_REALM) {
$r = q("select * from site where (site_flags & %d) > 0 and site_url != '%s' and site_type = %d and ( site_realm = '%s' or site_realm = '') ",
intval(DIRECTORY_MODE_PRIMARY|DIRECTORY_MODE_SECONDARY),
dbesc(z_root()),
intval(SITE_TYPE_ZOT),
dbesc($realm)
);
} else {
$r = q("select * from site where (site_flags & %d) > 0 and site_url != '%s' and site_realm like '%s' and site_type = %d ",
intval(DIRECTORY_MODE_PRIMARY|DIRECTORY_MODE_SECONDARY),
dbesc(z_root()),
dbesc(protect_sprintf('%' . $realm . '%')),
intval(SITE_TYPE_ZOT)
);
}
// If there are no directory servers, setup the fallback master
/** @FIXME What to do if we're in a different realm? */
if ((! $r) && (z_root() != DIRECTORY_FALLBACK_MASTER)) {
$r = array();
$r[] = array(
'site_url' => DIRECTORY_FALLBACK_MASTER,
'site_flags' => DIRECTORY_MODE_PRIMARY,
'site_update' => NULL_DATE,
'site_directory' => DIRECTORY_FALLBACK_MASTER . '/dirsearch',
'site_realm' => DIRECTORY_REALM,
'site_valid' => 1
);
$x = q("insert into site ( site_url, site_flags, site_update, site_directory, site_realm, site_valid )
values ( '%s', %d, '%s', '%s', '%s', %d ) ",
dbesc($r[0]['site_url']),
intval($r[0]['site_flags']),
dbesc($r[0]['site_update']),
dbesc($r[0]['site_directory']),
dbesc($r[0]['site_realm']),
intval($r[0]['site_valid'])
);
$r = q("select * from site where (site_flags & %d) > 0 and site_url != '%s' and site_type = %d ",
intval(DIRECTORY_MODE_PRIMARY|DIRECTORY_MODE_SECONDARY),
dbesc(z_root()),
intval(SITE_TYPE_ZOT)
);
}
if (! $r)
return;
foreach ($r as $rr) {
if (! $rr['site_directory'])
continue;
logger('sync directories: ' . $rr['site_directory']);
// for brand new directory servers, only load the last couple of days.
// It will take about a month for a new directory to obtain the full current repertoire of channels.
/** @FIXME Go back and pick up earlier ratings if this is a new directory server. These do not get refreshed. */
$token = get_config('system','realm_token');
$syncdate = (($rr['site_sync'] === NULL_DATE) ? datetime_convert('UTC','UTC','now - 2 days') : $rr['site_sync']);
$x = z_fetch_url($rr['site_directory'] . '?f=&sync=' . urlencode($syncdate) . (($token) ? '&t=' . $token : ''));
if (! $x['success'])
continue;
$j = json_decode($x['body'],true);
if (!($j['transactions']) || ($j['ratings']))
continue;
q("update site set site_sync = '%s' where site_url = '%s'",
dbesc(datetime_convert()),
dbesc($rr['site_url'])
);
logger('sync_directories: ' . $rr['site_url'] . ': ' . print_r($j,true), LOGGER_DATA);
if (is_array($j['transactions']) && count($j['transactions'])) {
foreach ($j['transactions'] as $t) {
$r = q("select * from updates where ud_guid = '%s' limit 1",
dbesc($t['transaction_id'])
);
if($r)
continue;
$ud_flags = 0;
if (is_array($t['flags']) && in_array('deleted',$t['flags']))
$ud_flags |= UPDATE_FLAGS_DELETED;
if (is_array($t['flags']) && in_array('forced',$t['flags']))
$ud_flags |= UPDATE_FLAGS_FORCED;
$z = q("insert into updates ( ud_hash, ud_guid, ud_date, ud_flags, ud_addr )
values ( '%s', '%s', '%s', %d, '%s' ) ",
dbesc($t['hash']),
dbesc($t['transaction_id']),
dbesc($t['timestamp']),
intval($ud_flags),
dbesc($t['address'])
);
}
}
if (is_array($j['ratings']) && count($j['ratings'])) {
foreach ($j['ratings'] as $rr) {
$x = q("select * from xlink where xlink_xchan = '%s' and xlink_link = '%s' and xlink_static = 1",
dbesc($rr['channel']),
dbesc($rr['target'])
);
if ($x && $x[0]['xlink_updated'] >= $rr['edited'])
continue;
// Ratings are signed by the rater. We need to verify before we can accept it.
/** @TODO Queue or defer if the xchan is not yet present on our site */
$y = q("select xchan_pubkey from xchan where xchan_hash = '%s' limit 1",
dbesc($rr['channel'])
);
if (! $y) {
logger('key unavailable on this site for ' . $rr['channel']);
continue;
}
if (! rsa_verify($rr['target'] . '.' . $rr['rating'] . '.' . $rr['rating_text'], base64url_decode($rr['signature']),$y[0]['xchan_pubkey'])) {
logger('failed to verify rating');
continue;
}
if ($x) {
$z = q("update xlink set xlink_rating = %d, xlink_rating_text = '%s', xlink_sig = '%s', xlink_updated = '%s' where xlink_id = %d",
intval($rr['rating']),
dbesc($rr['rating_text']),
dbesc($rr['signature']),
dbesc(datetime_convert()),
intval($x[0]['xlink_id'])
);
logger('rating updated');
} else {
$z = q("insert into xlink ( xlink_xchan, xlink_link, xlink_rating, xlink_rating_text, xlink_sig, xlink_updated, xlink_static ) values( '%s', '%s', %d, '%s', '%s', '%s', 1 ) ",
dbesc($rr['channel']),
dbesc($rr['target']),
intval($rr['rating']),
dbesc($rr['rating_text']),
dbesc($rr['signature']),
dbesc(datetime_convert())
);
logger('rating created');
}
}
}
}
}
/**
* @brief
*
* Given an update record, probe the channel, grab a zot-info packet and refresh/sync the data.
*
* Ignore updating records marked as deleted.
*
* If successful, sets ud_last in the DB to the current datetime for this
* reddress/webbie.
*
* @param array $ud Entry from update table
*/
function update_directory_entry($ud) {
logger('update_directory_entry: ' . print_r($ud,true), LOGGER_DATA);
if ($ud['ud_addr'] && (! ($ud['ud_flags'] & UPDATE_FLAGS_DELETED))) {
$success = false;
$x = zot_finger($ud['ud_addr'], '');
if ($x['success']) {
$j = json_decode($x['body'], true);
if ($j)
$success = true;
$y = import_xchan($j, 0, $ud);
}
if (! $success) {
q("update updates set ud_last = '%s' where ud_addr = '%s'",
dbesc(datetime_convert()),
dbesc($ud['ud_addr'])
);
}
}
}
/**
* @brief Push local channel updates to a local directory server.
*
* This is called from include/directory.php if a profile is to be pushed to the
* directory and the local hub in this case is any kind of directory server.
*
* @param int $uid
* @param boolean $force
*/
function local_dir_update($uid, $force) {
logger('local_dir_update: uid: ' . $uid, LOGGER_DEBUG);
$p = q("select channel.channel_hash, channel_address, channel_timezone, profile.* from profile left join channel on channel_id = uid where uid = %d and is_default = 1",
intval($uid)
);
$profile = array();
$profile['encoding'] = 'zot';
if ($p) {
$hash = $p[0]['channel_hash'];
$profile['description'] = $p[0]['pdesc'];
$profile['birthday'] = $p[0]['dob'];
if ($age = age($p[0]['dob'],$p[0]['channel_timezone'],''))
$profile['age'] = $age;
$profile['gender'] = $p[0]['gender'];
$profile['marital'] = $p[0]['marital'];
$profile['sexual'] = $p[0]['sexual'];
$profile['locale'] = $p[0]['locality'];
$profile['region'] = $p[0]['region'];
$profile['postcode'] = $p[0]['postal_code'];
$profile['country'] = $p[0]['country_name'];
$profile['about'] = $p[0]['about'];
$profile['homepage'] = $p[0]['homepage'];
$profile['hometown'] = $p[0]['hometown'];
if ($p[0]['keywords']) {
$tags = array();
$k = explode(' ', $p[0]['keywords']);
if ($k)
foreach ($k as $kk)
if (trim($kk))
$tags[] = trim($kk);
if ($tags)
$profile['keywords'] = $tags;
}
$hidden = (1 - intval($p[0]['publish']));
logger('hidden: ' . $hidden);
$r = q("select xchan_hidden from xchan where xchan_hash = '%s' limit 1",
dbesc($p[0]['channel_hash'])
);
if(intval($r[0]['xchan_hidden']) != $hidden) {
$r = q("update xchan set xchan_hidden = %d where xchan_hash = '%s'",
intval($hidden),
dbesc($p[0]['channel_hash'])
);
}
$arr = array('channel_id' => $uid, 'hash' => $hash, 'profile' => $profile);
call_hooks('local_dir_update', $arr);
$address = $p[0]['channel_address'] . '@' . get_app()->get_hostname();
if (perm_is_allowed($uid, '', 'view_profile')) {
import_directory_profile($hash, $arr['profile'], $address, 0);
} else {
// they may have made it private
$r = q("delete from xprof where xprof_hash = '%s'",
dbesc($hash)
);
$r = q("delete from xtag where xtag_hash = '%s'",
dbesc($hash)
);
}
}
$ud_hash = random_string() . '@' . get_app()->get_hostname();
update_modtime($hash, $ud_hash, $p[0]['channel_address'] . '@' . get_app()->get_hostname(),(($force) ? UPDATE_FLAGS_FORCED : UPDATE_FLAGS_UPDATED));
}
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