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192 lines
4.2 KiB
PHP
192 lines
4.2 KiB
PHP
<?php
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namespace Zotlabs\Zot6;
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use Zotlabs\Lib\Libzot;
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use Zotlabs\Lib\Queue;
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class Zot6Handler implements IHandler {
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function Notify($data,$hub) {
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return self::reply_notify($data,$hub);
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}
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function Rekey($sender,$data,$hub) {
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return self::reply_rekey_request($sender,$data,$hub);
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}
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function Refresh($sender,$recipients,$hub) {
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return self::reply_refresh($sender,$recipients,$hub);
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}
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function Purge($sender,$recipients,$hub) {
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return self::reply_purge($sender,$recipients,$hub);
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}
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// Implementation of specific methods follows;
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// These generally do a small amout of validation and call Libzot
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// to do any heavy lifting
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static function reply_notify($data,$hub) {
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$ret = [ 'success' => false ];
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logger('notify received from ' . $hub['hubloc_url']);
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$x = Libzot::fetch($data,$hub);
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$ret['delivery_report'] = $x;
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$ret['success'] = true;
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return $ret;
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}
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/**
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* @brief Remote channel info (such as permissions or photo or something)
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* has been updated. Grab a fresh copy and sync it.
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*
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* The difference between refresh and force_refresh is that force_refresh
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* unconditionally creates a directory update record, even if no changes were
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* detected upon processing.
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*
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* @param array $sender
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* @param array $recipients
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*
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* @return json_return_and_die()
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*/
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static function reply_refresh($sender, $recipients,$hub) {
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$ret = array('success' => false);
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if($recipients) {
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// This would be a permissions update, typically for one connection
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foreach ($recipients as $recip) {
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$r = q("select channel.*,xchan.* from channel
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left join xchan on channel_hash = xchan_hash
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where channel_hash ='%s' limit 1",
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dbesc($recip)
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);
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$x = Libzot::refresh( [ 'hubloc_id_url' => $hub['hubloc_id_url'] ], $r[0], (($msgtype === 'force_refresh') ? true : false));
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}
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}
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else {
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// system wide refresh
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$x = Libzot::refresh( [ 'hubloc_id_url' => $hub['hubloc_id_url'] ], null, (($msgtype === 'force_refresh') ? true : false));
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}
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$ret['success'] = true;
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return $ret;
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}
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static function rekey_request($sender,$data,$hub) {
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$ret = array('success' => false);
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// newsig is newkey signed with oldkey
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// The original xchan will remain. In Zot/Receiver we will have imported the new xchan and hubloc to verify
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// the packet authenticity. What we will do now is verify that the keychange operation was signed by the
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// oldkey, and if so change all the abook, abconfig, group, and permission elements which reference the
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// old xchan_hash.
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if((! $data['old_key']) && (! $data['new_key']) && (! $data['new_sig']))
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return $ret;
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$old = null;
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if(Libzot::verify($data['old_guid'],$data['old_guid_sig'],$data['old_key'])) {
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$oldhash = make_xchan_hash($data['old_guid'],$data['old_key']);
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$old = q("select * from xchan where xchan_hash = '%s' limit 1",
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dbesc($oldhash)
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);
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}
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else
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return $ret;
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if(! $old) {
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return $ret;
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}
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$xchan = $old[0];
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if(! Libzot::verify($data['new_key'],$data['new_sig'],$xchan['xchan_pubkey'])) {
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return $ret;
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}
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$r = q("select * from xchan where xchan_hash = '%s' limit 1",
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dbesc($sender)
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);
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$newxchan = $r[0];
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// @todo
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// if ! $update create a linked identity
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xchan_change_key($xchan,$newxchan,$data);
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$ret['success'] = true;
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return $ret;
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}
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/**
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* @brief
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*
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* @param array $sender
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* @param array $recipients
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*
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* return json_return_and_die()
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*/
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static function reply_purge($sender, $recipients, $hub) {
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$ret = array('success' => false);
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if (! $sender) {
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return $ret;
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}
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if ($recipients) {
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// basically this means "unfriend"
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foreach ($recipients as $recip) {
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$r = q("select channel.*,xchan.* from channel
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left join xchan on channel_hash = xchan_hash
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where channel_hash = '%s' limit 1",
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dbesc($recip)
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);
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if ($r) {
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$r = q("select abook_id from abook where uid = %d and abook_xchan = '%s' limit 1",
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intval($r[0]['channel_id']),
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dbesc($sender)
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);
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if ($r) {
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contact_remove($r[0]['channel_id'],$r[0]['abook_id']);
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}
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}
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}
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$ret['success'] = true;
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}
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else {
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// Unfriend everybody - basically this means the channel has committed suicide
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remove_all_xchan_resources($sender);
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$ret['success'] = true;
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}
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return $ret;
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}
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}
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