mirror of
https://github.com/YunoHost-Apps/hubzilla_ynh.git
synced 2024-09-03 19:26:21 +02:00
441 lines
14 KiB
PHP
441 lines
14 KiB
PHP
<?php
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/**
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* @file include/dir_fns.php
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*/
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require_once('include/permissions.php');
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/**
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* @brief
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*
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* @param int $dirmode
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* @return array
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*/
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function find_upstream_directory($dirmode) {
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global $DIRECTORY_FALLBACK_SERVERS;
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$preferred = get_config('system','directory_server');
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// Thwart attempts to use a private directory
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if(($preferred) && ($preferred != z_root())) {
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$r = q("select * from site where site_url = '%s' limit 1",
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dbesc($preferred)
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);
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if(($r) && ($r[0]['site_flags'] & DIRECTORY_MODE_STANDALONE)) {
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$preferred = '';
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}
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}
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if (! $preferred) {
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/*
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* No directory has yet been set. For most sites, pick one at random
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* from our list of directory servers. However, if we're a directory
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* server ourself, point at the local instance
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* We will then set this value so this should only ever happen once.
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* Ideally there will be an admin setting to change to a different
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* directory server if you don't like our choice or if circumstances change.
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*/
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$dirmode = intval(get_config('system','directory_mode'));
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if ($dirmode == DIRECTORY_MODE_NORMAL) {
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$toss = mt_rand(0,count($DIRECTORY_FALLBACK_SERVERS));
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$preferred = $DIRECTORY_FALLBACK_SERVERS[$toss];
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set_config('system','directory_server',$preferred);
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} else{
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set_config('system','directory_server',z_root());
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}
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}
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return array('url' => $preferred);
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}
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/**
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* Directories may come and go over time. We will need to check that our
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* directory server is still valid occasionally, and reset to something that
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* is if our directory has gone offline for any reason
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*/
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function check_upstream_directory() {
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$directory = get_config('system', 'directory_server');
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// it's possible there is no directory server configured and the local hub is being used.
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// If so, default to preserving the absence of a specific server setting.
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$isadir = true;
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if ($directory) {
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$h = parse_url($directory);
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if ($h) {
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$x = zot_finger('[system]@' . $h['host']);
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if ($x['success']) {
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$j = json_decode($x['body'], true);
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if (array_key_exists('site', $j) && array_key_exists('directory_mode', $j['site'])) {
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if ($j['site']['directory_mode'] === 'normal') {
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$isadir = false;
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}
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}
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}
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}
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}
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if (! $isadir)
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set_config('system', 'directory_server', '');
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}
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function get_directory_setting($observer, $setting) {
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if ($observer)
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$ret = get_xconfig($observer, 'directory', $setting);
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else
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$ret = ((array_key_exists($setting,$_SESSION)) ? intval($_SESSION[$setting]) : false);
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if($ret === false)
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$ret = get_config('directory', $setting);
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if($setting == 'safemode' && $ret === false)
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$ret = 1;
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return $ret;
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}
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/**
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* @brief Called by the directory_sort widget.
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*/
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function dir_sort_links() {
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$safe_mode = 1;
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$observer = get_observer_hash();
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$safe_mode = get_directory_setting($observer, 'safemode');
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$globaldir = get_directory_setting($observer, 'globaldir');
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$pubforums = get_directory_setting($observer, 'pubforums');
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// Build urls without order and pubforums so it's easy to tack on the changed value
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// Probably there's an easier way to do this
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$directory_sort_order = get_config('system','directory_sort_order');
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if(! $directory_sort_order)
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$directory_sort_order = 'date';
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$current_order = (($_REQUEST['order']) ? $_REQUEST['order'] : $directory_sort_order);
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$suggest = (($_REQUEST['suggest']) ? '&suggest=' . $_REQUEST['suggest'] : '');
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$url = 'directory?f=';
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$tmp = array_merge($_GET,$_POST);
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unset($tmp['suggest']);
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unset($tmp['pubforums']);
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unset($tmp['global']);
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unset($tmp['safe']);
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unset($tmp['q']);
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unset($tmp['f']);
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$forumsurl = $url . http_build_query($tmp) . $suggest;
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$o = replace_macros(get_markup_template('dir_sort_links.tpl'), array(
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'$header' => t('Directory Options'),
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'$forumsurl' => $forumsurl,
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'$safemode' => array('safemode', t('Safe Mode'),$safe_mode,'',array(t('No'), t('Yes')),' onchange=\'window.location.href="' . $forumsurl . '&safe="+(this.checked ? 1 : 0)\''),
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'$pubforums' => array('pubforums', t('Public Forums Only'),$pubforums,'',array(t('No'), t('Yes')),' onchange=\'window.location.href="' . $forumsurl . '&pubforums="+(this.checked ? 1 : 0)\''),
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'$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)\''),
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));
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return $o;
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}
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/**
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* @brief Checks the directory mode of this hub.
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*
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* Checks the directory mode of this hub to see if it is some form of directory server. If it is,
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* get the directory realm of this hub. Fetch a list of all other directory servers in this realm and request
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* a directory sync packet. This will contain both directory updates and new ratings. Store these all in the DB.
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* In the case of updates, we will query each of them asynchronously from a poller task. Ratings are stored
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* directly if the rater's signature matches.
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*
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* @param int $dirmode;
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*/
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function sync_directories($dirmode) {
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if ($dirmode == DIRECTORY_MODE_STANDALONE || $dirmode == DIRECTORY_MODE_NORMAL)
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return;
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$realm = get_directory_realm();
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if ($realm == DIRECTORY_REALM) {
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$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 = '') ",
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intval(DIRECTORY_MODE_PRIMARY|DIRECTORY_MODE_SECONDARY),
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dbesc(z_root()),
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intval(SITE_TYPE_ZOT),
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dbesc($realm)
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);
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} else {
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$r = q("select * from site where (site_flags & %d) > 0 and site_url != '%s' and site_realm like '%s' and site_type = %d ",
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intval(DIRECTORY_MODE_PRIMARY|DIRECTORY_MODE_SECONDARY),
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dbesc(z_root()),
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dbesc(protect_sprintf('%' . $realm . '%')),
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intval(SITE_TYPE_ZOT)
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);
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}
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// If there are no directory servers, setup the fallback master
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/** @FIXME What to do if we're in a different realm? */
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if ((! $r) && (z_root() != DIRECTORY_FALLBACK_MASTER)) {
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$r = array();
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$r[] = array(
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'site_url' => DIRECTORY_FALLBACK_MASTER,
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'site_flags' => DIRECTORY_MODE_PRIMARY,
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'site_update' => NULL_DATE,
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'site_directory' => DIRECTORY_FALLBACK_MASTER . '/dirsearch',
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'site_realm' => DIRECTORY_REALM,
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'site_valid' => 1
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);
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$x = q("insert into site ( site_url, site_flags, site_update, site_directory, site_realm, site_valid )
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values ( '%s', %d, '%s', '%s', '%s', %d ) ",
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dbesc($r[0]['site_url']),
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intval($r[0]['site_flags']),
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dbesc($r[0]['site_update']),
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dbesc($r[0]['site_directory']),
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dbesc($r[0]['site_realm']),
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intval($r[0]['site_valid'])
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);
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$r = q("select * from site where site_flags in (%d, %d) and site_url != '%s' and site_type = %d ",
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intval(DIRECTORY_MODE_PRIMARY),
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intval(DIRECTORY_MODE_SECONDARY),
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dbesc(z_root()),
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intval(SITE_TYPE_ZOT)
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);
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}
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if (! $r)
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return;
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foreach ($r as $rr) {
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if (! $rr['site_directory'])
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continue;
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logger('sync directories: ' . $rr['site_directory']);
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// for brand new directory servers, only load the last couple of days.
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// It will take about a month for a new directory to obtain the full current repertoire of channels.
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/** @FIXME Go back and pick up earlier ratings if this is a new directory server. These do not get refreshed. */
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$token = get_config('system','realm_token');
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$syncdate = (($rr['site_sync'] === NULL_DATE) ? datetime_convert('UTC','UTC','now - 2 days') : $rr['site_sync']);
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$x = z_fetch_url($rr['site_directory'] . '?f=&sync=' . urlencode($syncdate) . (($token) ? '&t=' . $token : ''));
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if (! $x['success'])
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continue;
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$j = json_decode($x['body'],true);
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if (!($j['transactions']) || ($j['ratings']))
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continue;
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q("update site set site_sync = '%s' where site_url = '%s'",
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dbesc(datetime_convert()),
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dbesc($rr['site_url'])
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);
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logger('sync_directories: ' . $rr['site_url'] . ': ' . print_r($j,true), LOGGER_DATA);
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if (is_array($j['transactions']) && count($j['transactions'])) {
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foreach ($j['transactions'] as $t) {
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$r = q("select * from updates where ud_guid = '%s' limit 1",
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dbesc($t['transaction_id'])
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);
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if($r)
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continue;
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$ud_flags = 0;
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if (is_array($t['flags']) && in_array('deleted',$t['flags']))
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$ud_flags |= UPDATE_FLAGS_DELETED;
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if (is_array($t['flags']) && in_array('forced',$t['flags']))
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$ud_flags |= UPDATE_FLAGS_FORCED;
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$z = q("insert into updates ( ud_hash, ud_guid, ud_date, ud_flags, ud_addr )
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values ( '%s', '%s', '%s', %d, '%s' ) ",
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dbesc($t['hash']),
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dbesc($t['transaction_id']),
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dbesc($t['timestamp']),
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intval($ud_flags),
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dbesc($t['address'])
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);
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}
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}
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if (is_array($j['ratings']) && count($j['ratings'])) {
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foreach ($j['ratings'] as $rr) {
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$x = q("select * from xlink where xlink_xchan = '%s' and xlink_link = '%s' and xlink_static = 1",
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dbesc($rr['channel']),
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dbesc($rr['target'])
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);
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if ($x && $x[0]['xlink_updated'] >= $rr['edited'])
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continue;
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// Ratings are signed by the rater. We need to verify before we can accept it.
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/** @TODO Queue or defer if the xchan is not yet present on our site */
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$y = q("select xchan_pubkey from xchan where xchan_hash = '%s' limit 1",
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dbesc($rr['channel'])
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);
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if (! $y) {
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logger('key unavailable on this site for ' . $rr['channel']);
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continue;
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}
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if (! rsa_verify($rr['target'] . '.' . $rr['rating'] . '.' . $rr['rating_text'], base64url_decode($rr['signature']),$y[0]['xchan_pubkey'])) {
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logger('failed to verify rating');
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continue;
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}
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if ($x) {
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$z = q("update xlink set xlink_rating = %d, xlink_rating_text = '%s', xlink_sig = '%s', xlink_updated = '%s' where xlink_id = %d",
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intval($rr['rating']),
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dbesc($rr['rating_text']),
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dbesc($rr['signature']),
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dbesc(datetime_convert()),
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intval($x[0]['xlink_id'])
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);
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logger('rating updated');
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} else {
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$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 ) ",
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dbesc($rr['channel']),
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dbesc($rr['target']),
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intval($rr['rating']),
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dbesc($rr['rating_text']),
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dbesc($rr['signature']),
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dbesc(datetime_convert())
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);
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logger('rating created');
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}
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}
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}
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}
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}
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/**
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* @brief
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*
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* Given an update record, probe the channel, grab a zot-info packet and refresh/sync the data.
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*
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* Ignore updating records marked as deleted.
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*
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* If successful, sets ud_last in the DB to the current datetime for this
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* reddress/webbie.
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*
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* @param array $ud Entry from update table
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*/
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function update_directory_entry($ud) {
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logger('update_directory_entry: ' . print_r($ud,true), LOGGER_DATA);
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if ($ud['ud_addr'] && (! ($ud['ud_flags'] & UPDATE_FLAGS_DELETED))) {
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$success = false;
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$x = zot_finger($ud['ud_addr'], '');
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if ($x['success']) {
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$j = json_decode($x['body'], true);
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if ($j)
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$success = true;
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$y = import_xchan($j, 0, $ud);
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}
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if (! $success) {
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q("update updates set ud_last = '%s' where ud_addr = '%s'",
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dbesc(datetime_convert()),
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dbesc($ud['ud_addr'])
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);
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}
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}
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}
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/**
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* @brief Push local channel updates to a local directory server.
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*
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* This is called from include/directory.php if a profile is to be pushed to the
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* directory and the local hub in this case is any kind of directory server.
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*
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* @param int $uid
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* @param boolean $force
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*/
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function local_dir_update($uid, $force) {
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logger('local_dir_update: uid: ' . $uid, LOGGER_DEBUG);
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$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",
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intval($uid)
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);
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$profile = array();
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$profile['encoding'] = 'zot';
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if ($p) {
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$hash = $p[0]['channel_hash'];
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$profile['description'] = $p[0]['pdesc'];
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$profile['birthday'] = $p[0]['dob'];
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if ($age = age($p[0]['dob'],$p[0]['channel_timezone'],''))
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$profile['age'] = $age;
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$profile['gender'] = $p[0]['gender'];
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$profile['marital'] = $p[0]['marital'];
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$profile['sexual'] = $p[0]['sexual'];
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$profile['locale'] = $p[0]['locality'];
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$profile['region'] = $p[0]['region'];
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$profile['postcode'] = $p[0]['postal_code'];
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$profile['country'] = $p[0]['country_name'];
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$profile['about'] = $p[0]['about'];
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$profile['homepage'] = $p[0]['homepage'];
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$profile['hometown'] = $p[0]['hometown'];
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if ($p[0]['keywords']) {
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$tags = array();
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$k = explode(' ', $p[0]['keywords']);
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if ($k)
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foreach ($k as $kk)
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if (trim($kk))
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$tags[] = trim($kk);
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if ($tags)
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$profile['keywords'] = $tags;
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}
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$hidden = (1 - intval($p[0]['publish']));
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logger('hidden: ' . $hidden);
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$r = q("select xchan_hidden from xchan where xchan_hash = '%s' limit 1",
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dbesc($p[0]['channel_hash'])
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);
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if(intval($r[0]['xchan_hidden']) != $hidden) {
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$r = q("update xchan set xchan_hidden = %d where xchan_hash = '%s'",
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intval($hidden),
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dbesc($p[0]['channel_hash'])
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);
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}
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$arr = array('channel_id' => $uid, 'hash' => $hash, 'profile' => $profile);
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call_hooks('local_dir_update', $arr);
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$address = $p[0]['channel_address'] . '@' . get_app()->get_hostname();
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if (perm_is_allowed($uid, '', 'view_profile')) {
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import_directory_profile($hash, $arr['profile'], $address, 0);
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} else {
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// they may have made it private
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$r = q("delete from xprof where xprof_hash = '%s'",
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dbesc($hash)
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);
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$r = q("delete from xtag where xtag_hash = '%s'",
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dbesc($hash)
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);
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}
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}
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$ud_hash = random_string() . '@' . get_app()->get_hostname();
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update_modtime($hash, $ud_hash, $p[0]['channel_address'] . '@' . get_app()->get_hostname(),(($force) ? UPDATE_FLAGS_FORCED : UPDATE_FLAGS_UPDATED));
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}
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