diff options
Diffstat (limited to 'include/zot.php')
| -rw-r--r-- | include/zot.php | 1620 |
1 files changed, 1388 insertions, 232 deletions
diff --git a/include/zot.php b/include/zot.php index 524f958ad..9e69aea96 100644 --- a/include/zot.php +++ b/include/zot.php @@ -1,12 +1,29 @@ -<?php +<?php /** @file */ require_once('include/crypto.php'); require_once('include/items.php'); /** + * Red implementation of zot protocol. + * + * https://github.com/friendica/red/wiki/zot + * https://github.com/friendica/red/wiki/Zot---A-High-Level-Overview + * + */ + + +/** * * @function zot_new_uid($channel_nick) - * @channel_id = unique nickname of controlling entity + * + * Generates a unique string for use as a zot guid using our DNS-based url, the channel nickname and some entropy. + * The entropy ensures uniqueness against re-installs where the same URL and nickname are chosen. + * NOTE: zot doesn't require this to be unique. Internally we use a whirlpool hash of this guid and the signature + * of this guid signed with the channel private key. This can be verified and should make the probability of + * collision of the verified result negligible within the constraints of our immediate universe. + * + * @param string channel_nickname = unique nickname of controlling entity + * * @returns string * */ @@ -18,69 +35,58 @@ function zot_new_uid($channel_nick) { /** - * - * Given an array of zot hashes, return all distinct hubs - * If primary is true, return only primary hubs - * Result is ordered by url to assist in batching. - * Return only the first primary hub as there should only be one. + * @function zot_get_hublocs($hash) + * Given a zot hash, return all distinct hubs. + * This function is used in building the zot discovery packet + * and therefore should only be used by channels which are defined + * on this hub + * @param string $hash - xchan_hash + * @retuns array of hubloc (hub location structures) + * hubloc_id int + * hubloc_guid char(255) + * hubloc_guid_sig text + * hubloc_hash char(255) + * hubloc_addr char(255) + * hubloc_flags int + * hubloc_status int + * hubloc_url char(255) + * hubloc_url_sig text + * hubloc_host char(255) + * hubloc_callback char(255) + * hubloc_connect char(255) + * hubloc_sitekey text + * hubloc_updated datetime + * hubloc_connected datetime * */ -function zot_get_hubloc($arr,$primary = false) { +function zot_get_hublocs($hash) { - $tmp = ''; - - if(is_array($arr)) { - foreach($arr as $e) { - if(strlen($tmp)) - $tmp .= ','; - $tmp .= "'" . dbesc($e) . "'" ; - } - } - - if(! strlen($tmp)) - return array(); - - $sql_extra = (($primary) ? " and hubloc_flags & " . intval(HUBLOC_FLAGS_PRIMARY) : "" ); - $limit = (($primary) ? " limit 1 " : ""); - return q("select * from hubloc where hubloc_hash in ( $tmp ) $sql_extra order by hubloc_url $limit"); - -} - -function zot_notify($channel,$url,$type = 'notify',$recipients = null, $remote_key = null) { + /** Only search for active hublocs - e.g. those that haven't been marked deleted */ - $params = array( - 'type' => $type, - 'sender' => json_encode(array( - 'guid' => $channel['channel_guid'], - 'guid_sig' => base64url_encode(rsa_sign($channel['channel_guid'],$channel['channel_prvkey'])), - 'url' => z_root(), - 'url_sig' => base64url_encode(rsa_sign(z_root(),$channel['channel_prvkey'])) - )), - 'callback' => '/post', - 'version' => ZOT_REVISION + $ret = q("select * from hubloc where hubloc_hash = '%s' and not ( hubloc_flags & %d ) group by hubloc_url ", + dbesc($hash), + intval(HUBLOC_FLAGS_DELETED) ); - - - if($recipients) - $params['recipients'] = json_encode($recipients); - - // Hush-hush ultra top-secret mode - - if($remote_key) { - $params = aes_encapsulate($params,$remote_key); - } - - $x = z_post_url($url,$params); - return($x); + return $ret; } - -/* + +/** + * + * @function zot_build_packet($channel,$type = 'notify',$recipients = null, $remote_key = null, $secret = null) + * builds a zot notification packet that you can either + * store in the queue with a message array or call zot_zot to immediately + * zot it to the other side * - * zot_build_packet builds a notification packet that you can either - * store in the queue with a message array or call zot_zot to immediately - * zot it to the other side + * @param array $channel => sender channel structure + * @param string $type => packet type: one of 'ping', 'pickup', 'purge', 'refresh', 'force_refresh', 'notify', 'auth_check' + * @param array $recipients => envelope information, array ( 'guid' => string, 'guid_sig' => string ); empty for public posts + * @param string $remote_key => optional public site key of target hub used to encrypt entire packet + * NOTE: remote_key and encrypted packets are required for 'auth_check' packets, optional for all others + * @param string $secret => random string, required for packets which require verification/callback + * e.g. 'pickup', 'purge', 'notify', 'auth_check'. Packet types 'ping', 'force_refresh', and 'refresh' do not require verification * + * @returns string json encoded zot packet */ function zot_build_packet($channel,$type = 'notify',$recipients = null, $remote_key = null, $secret = null) { @@ -110,18 +116,43 @@ function zot_build_packet($channel,$type = 'notify',$recipients = null, $remote_ // Hush-hush ultra top-secret mode if($remote_key) { - $data = aes_encapsulate(json_encode($data),$remote_key); + $data = crypto_encapsulate(json_encode($data),$remote_key); } return json_encode($data); } +/** + * @function: zot_zot + * @param: string $url + * @param: array $data + * + * @returns: array => see z_post_url for returned data format + */ + + + function zot_zot($url,$data) { return z_post_url($url,array('data' => $data)); } -function zot_finger($webbie,$channel) { +/** + * @function: zot_finger + * + * Look up information about channel + * @param: string $webbie + * does not have to be host qualified e.g. 'foo' is treated as 'foo@thishub' + * @param: array $channel + * (optional), if supplied permissions will be enumerated specifically for $channel + * @param: boolean $autofallback + * fallback/failover to http if https connection cannot be established. Default is true. + * + * @returns: array => see z_post_url and mod/zfinger.php + */ + + +function zot_finger($webbie,$channel,$autofallback = true) { if(strpos($webbie,'@') === false) { @@ -135,10 +166,19 @@ function zot_finger($webbie,$channel) { $xchan_addr = $address . '@' . $host; + if((! $address) || (! $xchan_addr)) { + logger('zot_finger: no address :' . $webbie); + return array('success' => false); + } + + // potential issue here; the xchan_addr points to the primary hub. + // The webbie we were called with may not, so it might not be found + // unless we query for hubloc_addr instead of xchan_addr + $r = q("select xchan.*, hubloc.* from xchan left join hubloc on xchan_hash = hubloc_hash where xchan_addr = '%s' and (hubloc_flags & %d) limit 1", - dbesc($xchan_address), + dbesc($xchan_addr), intval(HUBLOC_FLAGS_PRIMARY) ); @@ -152,7 +192,7 @@ function zot_finger($webbie,$channel) { $rhs = '/.well-known/zot-info'; $https = ((strpos($url,'https://') === 0) ? true : false); - logger('zot_finger: ' . $url, LOGGER_DEBUG); + logger('zot_finger: ' . $address . ' at ' . $url, LOGGER_DEBUG); if($channel) { $postvars = array( @@ -165,7 +205,7 @@ function zot_finger($webbie,$channel) { $result = z_post_url($url . $rhs,$postvars); - if(! $result['success']) { + if((! $result['success']) && ($autofallback)) { if($https) { logger('zot_finger: https failed. falling back to http'); $result = z_post_url('http://' . $host . $rhs,$postvars); @@ -176,7 +216,7 @@ function zot_finger($webbie,$channel) { $rhs .= '?f=&address=' . urlencode($address); $result = z_fetch_url($url . $rhs); - if(! $result['success']) { + if((! $result['success']) && ($autofallback)) { if($https) { logger('zot_finger: https failed. falling back to http'); $result = z_fetch_url('http://' . $host . $rhs); @@ -191,7 +231,31 @@ function zot_finger($webbie,$channel) { } -function zot_refresh($them,$channel = null) { +/** + * @function: zot_refresh($them, $channel = null, $force = false) + * + * zot_refresh is typically invoked when somebody has changed permissions of a channel and they are notified + * to fetch new permissions via a finger/discovery operation. This may result in a new connection + * (abook entry) being added to a local channel and it may result in auto-permissions being granted. + * + * Friending in zot is accomplished by sending a refresh packet to a specific channel which indicates a + * permission change has been made by the sender which affects the target channel. The hub controlling + * the target channel does targetted discovery (a zot-finger request requesting permissions for the local + * channel). These are decoded here, and if necessary and abook structure (addressbook) is created to store + * the permissions assigned to this channel. + * + * Initially these abook structures are created with a 'pending' flag, so that no reverse permissions are + * implied until this is approved by the owner channel. A channel can also auto-populate permissions in + * return and send back a refresh packet of its own. This is used by forum and group communication channels + * so that friending and membership in the channel's "club" is automatic. + * + * @param array $them => xchan structure of sender + * @param array $channel => local channel structure of target recipient, required for "friending" operations + * + * @returns boolean true if successful, else false + */ + +function zot_refresh($them,$channel = null, $force = false) { logger('zot_refresh: them: ' . print_r($them,true), LOGGER_DATA); if($channel) @@ -245,7 +309,7 @@ function zot_refresh($them,$channel = null) { return false; } - $x = import_xchan($j); + $x = import_xchan($j,(($force) ? UPDATE_FLAGS_FORCED : UPDATE_FLAGS_UPDATED)); if(! $x['success']) return false; @@ -258,7 +322,7 @@ function zot_refresh($them,$channel = null) { if($channel) { $global_perms = get_perms(); if($j['permissions']['data']) { - $permissions = aes_unencapsulate(array( + $permissions = crypto_unencapsulate(array( 'data' => $j['permissions']['data'], 'key' => $j['permissions']['key'], 'iv' => $j['permissions']['iv']), @@ -270,8 +334,15 @@ function zot_refresh($them,$channel = null) { else $permissions = $j['permissions']; + $connected_set = false; + if($permissions && is_array($permissions)) { foreach($permissions as $k => $v) { + // The connected permission means you are in their address book + if($k === 'connected') { + $connected_set = intval($v); + continue; + } if($v) { $their_perms = $their_perms | intval($global_perms[$k][1]); } @@ -284,7 +355,10 @@ function zot_refresh($them,$channel = null) { intval(ABOOK_FLAG_SELF) ); - if($r) { + if($r) { + + $current_abook_connected = (($r[0]['abook_flags'] & ABOOK_FLAG_UNCONNECTED) ? 0 : 1); + $y = q("update abook set abook_their_perms = %d where abook_xchan = '%s' and abook_channel = %d and not (abook_flags & %d) limit 1", @@ -293,8 +367,29 @@ function zot_refresh($them,$channel = null) { intval($channel['channel_id']), intval(ABOOK_FLAG_SELF) ); + +// if(($connected_set === 0 || $connected_set === 1) && ($connected_set !== $current_abook_unconnected)) { + + // if they are in your address book but you aren't in theirs, and/or this does not + // match your current connected state setting, toggle it. + +// $y1 = q("update abook set abook_flags = (abook_flags ^ %d) +// where abook_xchan = '%s' and abook_channel = %d +// and not (abook_flags & %d) limit 1", +// intval(ABOOK_FLAG_UNCONNECTED), +// dbesc($x['hash']), +// intval($channel['channel_id']), +// intval(ABOOK_FLAG_SELF) +// ); +// } + if(! $y) logger('abook update failed'); + else { + // if we were just granted read stream permission and didn't have it before, try to pull in some posts + if((! ($r[0]['abook_their_perms'] & PERMS_R_STREAM)) && ($their_perms & PERMS_R_STREAM)) + proc_run('php','include/onepoll.php',$r[0]['abook_id']); + } } else { $default_perms = 0; @@ -319,7 +414,6 @@ function zot_refresh($them,$channel = null) { ); if($y) { - logger("New introduction received for {$channel['channel_name']}"); if($default_perms) { // send back a permissions update for auto-friend/auto-permissions @@ -329,29 +423,25 @@ function zot_refresh($them,$channel = null) { intval(ABOOK_FLAG_SELF) ); if($z) - proc_run('php','include/notifier.php','permissions_update',$z[0]['abook_id']); + proc_run('php','include/notifier.php','permission_update',$z[0]['abook_id']); } - } - } - } - else { - - logger('zot_refresh: importing profile if available'); - - // Are we a directory server of some kind? - $dirmode = intval(get_config('system','directory_mode')); - if($dirmode != DIRECTORY_MODE_NORMAL) { - if(array_key_exists('profile',$x) && is_array($x['profile'])) { - import_directory_profile($x['hash'],$x['profile']); - } - else { - // they may have made it private - $r = q("delete from xprof where xprof_hash = '%s' limit 1", - dbesc($x['hash']) - ); - $r = q("delete from xtag where xtag_hash = '%s' limit 1", + $new_connection = q("select abook_id, abook_flags from abook where abook_channel = %d and abook_xchan = '%s' order by abook_created desc limit 1", + intval($channel['channel_id']), dbesc($x['hash']) ); + if(($new_connection) && (! $default_perms)) { + require_once('include/enotify.php'); + notification(array( + 'type' => NOTIFY_INTRO, + 'from_xchan' => $x['hash'], + 'to_xchan' => $channel['channel_hash'], + 'link' => z_root() . '/connedit/' . $new_connection[0]['abook_id'], + )); + } + + if($new_connection && (! ($new_connection[0]['abook_flags'] & ABOOK_FLAG_PENDING)) && ($their_perms & PERMS_R_STREAM)) + proc_run('php','include/onepoll.php',$new_connection[0]['abook_id']); + } } } @@ -360,6 +450,25 @@ function zot_refresh($them,$channel = null) { return false; } +/** + * @function: zot_gethub + * + * A guid and a url, both signed by the sender, distinguish a known sender at a known location + * This function looks these up to see if the channel is known and therefore previously verified. + * If not, we will need to verify it. + * + * @param array $arr + * $arr must contain: + * string $arr['guid'] => guid of conversant + * string $arr['guid_sig'] => guid signed with conversant's private key + * string $arr['url'] => URL of the origination hub of this communication + * string $arr['url_sig'] => URL signed with conversant's private key + * + * + * @returns: array => hubloc record + */ + + function zot_gethub($arr) { @@ -378,10 +487,31 @@ function zot_gethub($arr) { return $r[0]; } } - logger('zot_gethub: not found', LOGGER_DEBUG); + logger('zot_gethub: not found: ' . print_r($arr,true), LOGGER_DEBUG); return null; } +/** + * @function zot_register_hub($arr) + * + * A communication has been received which has an unknown (to us) sender. + * Perform discovery based on our calculated hash of the sender at the origination address. + * This will fetch the discovery packet of the sender, which contains the public key we + * need to verify our guid and url signatures. + * + * @param array $arr + * $arr must contain: + * string $arr['guid'] => guid of conversant + * string $arr['guid_sig'] => guid signed with conversant's private key + * string $arr['url'] => URL of the origination hub of this communication + * string $arr['url_sig'] => URL signed with conversant's private key + * + * + * @returns array => 'success' (boolean true or false) + * 'message' (optional error string only if success is false) + */ + + function zot_register_hub($arr) { $result = array('success' => false); @@ -400,23 +530,64 @@ function zot_register_hub($arr) { if($x['success']) { $record = json_decode($x['body'],true); - $c = import_xchan($record); - if($c['success']) - $result['success'] = true; + + /* + * We now have a key - only continue registration if our signatures are valid + * AND the guid and guid sig in the returned packet match those provided in + * our current communication. + */ + + if((rsa_verify($arr['guid'],base64url_decode($arr['guid_sig']),$record['key'])) + && (rsa_verify($arr['url'],base64url_decode($arr['url_sig']),$record['key'])) + && ($arr['guid'] === $record['guid']) + && ($arr['guid_sig'] === $record['guid_sig'])) { + + $c = import_xchan($record); + if($c['success']) + $result['success'] = true; + } + else { + logger('zot_register_hub: failure to verify returned packet.'); + } } } return $result; } +/** + * @function import_xchan($arr,$ud_flags = UPDATE_FLAGS_UPDATED) + * Takes an associative array of a fetched discovery packet and updates + * all internal data structures which need to be updated as a result. + * + * @param array $arr => json_decoded discovery packet + * @param int $ud_flags + * Determines whether to create a directory update record if any changes occur, default is UPDATE_FLAGS_UPDATED (true) + * $ud_flags = UPDATE_FLAGS_FORCED indicates a forced refresh where we unconditionally create a directory update record + * this typically occurs once a month for each channel as part of a scheduled ping to notify the directory + * that the channel still exists + * + * @returns array => 'success' (boolean true or false) + * 'message' (optional error string only if success is false) + */ -// Takes a json associative array from zot_finger and imports the xchan and hublocs -// If the xchan already exists, update the name and photo if these have changed. -// +function import_xchan($arr,$ud_flags = UPDATE_FLAGS_UPDATED) { -function import_xchan($arr) { + + call_hooks('import_xchan', $arr); $ret = array('success' => false); + $dirmode = intval(get_config('system','directory_mode')); + + $changed = false; + $what = ''; + + if(! (is_array($arr) && array_key_exists('success',$arr) && $arr['success'])) { + logger('import_xchan: invalid data packet: ' . print_r($arr,true)); + $ret['message'] = t('Invalid data packet'); + return $ret; + } + $xchan_hash = base64url_encode(hash('whirlpool',$arr['guid'] . $arr['guid_sig'], true)); $import_photos = false; @@ -427,10 +598,17 @@ function import_xchan($arr) { return $ret; } + logger('import_xchan: ' . $xchan_hash, LOGGER_DEBUG); + $r = q("select * from xchan where xchan_hash = '%s' limit 1", dbesc($xchan_hash) ); + if(! array_key_exists('connect_url', $arr)) + $arr['connect_url'] = ''; + + if(strpos($arr['address'],'/') !== false) + $arr['address'] = substr($arr['address'],0,strpos($arr['address'],'/')); if($r) { if($r[0]['xchan_photo_date'] != $arr['photo_updated']) @@ -452,23 +630,66 @@ function import_xchan($arr) { $new_flags = $r[0]['xchan_flags'] ^ XCHAN_FLAGS_HIDDEN; else $new_flags = $r[0]['xchan_flags']; - - - if(($r[0]['xchan_name_date'] != $arr['name_updated']) || ($r[0]['xchan_connurl'] != $arr['connections_url']) || ($r[0]['xchan_flags'] != $new_flags)) { - $r = q("update xchan set xchan_name = '%s', xchan_name_date = '%s', xchan_connurl = '%s', xchan_flags = %d where xchan_hash = '%s' limit 1", + + $adult = (($r[0]['xchan_flags'] & XCHAN_FLAGS_SELFCENSORED) ? true : false); + $adult_changed = ((intval($adult) != intval($arr['adult_content'])) ? true : false); + if($adult_changed) + $new_flags = $new_flags ^ XCHAN_FLAGS_SELFCENSORED; + + $deleted = (($r[0]['xchan_flags'] & XCHAN_FLAGS_DELETED) ? true : false); + $deleted_changed = ((intval($deleted) != intval($arr['deleted'])) ? true : false); + if($deleted_changed) + $new_flags = $new_flags ^ XCHAN_FLAGS_DELETED; + + if(($r[0]['xchan_name_date'] != $arr['name_updated']) + || ($r[0]['xchan_connurl'] != $arr['connections_url']) + || ($r[0]['xchan_flags'] != $new_flags) + || ($r[0]['xchan_addr'] != $arr['address']) + || ($r[0]['xchan_follow'] != $arr['follow_url']) + || ($r[0]['xchan_connpage'] != $arr['connect_url']) + || ($r[0]['xchan_url'] != $arr['url'])) { + $r = q("update xchan set xchan_name = '%s', xchan_name_date = '%s', xchan_connurl = '%s', xchan_follow = '%s', + xchan_connpage = '%s', xchan_flags = %d, + xchan_addr = '%s', xchan_url = '%s' where xchan_hash = '%s' limit 1", dbesc($arr['name']), dbesc($arr['name_updated']), dbesc($arr['connections_url']), + dbesc($arr['follow_url']), + dbesc($arr['connect_url']), intval($new_flags), + dbesc($arr['address']), + dbesc($arr['url']), dbesc($xchan_hash) ); + + logger('import_xchan: existing: ' . print_r($r[0],true), LOGGER_DATA); + logger('import_xchan: new: ' . print_r($arr,true), LOGGER_DATA); + $what .= 'xchan '; + $changed = true; } } else { $import_photos = true; + + + if((($arr['site']['directory_mode'] === 'standalone') || ($dirmode & DIRECTORY_MODE_STANDALONE)) +&& ($arr['site']['url'] != z_root())) + $arr['searchable'] = false; + + $hidden = (1 - intval($arr['searchable'])); + + if($hidden) + $new_flags = XCHAN_FLAGS_HIDDEN; + else + $new_flags = 0; + if($arr['adult_content']) + $new_flags |= XCHAN_FLAGS_SELFCENSORED; + if(array_key_exists('deleted',$arr) && $arr['deleted']) + $new_flags |= XCHAN_FLAGS_DELETED; + $x = q("insert into xchan ( xchan_hash, xchan_guid, xchan_guid_sig, xchan_pubkey, xchan_photo_mimetype, - xchan_photo_l, xchan_addr, xchan_url, xchan_connurl, xchan_name, xchan_network, xchan_photo_date, xchan_name_date) - values ( '%s', '%s', '%s', '%s' , '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s') ", + xchan_photo_l, xchan_addr, xchan_url, xchan_connurl, xchan_follow, xchan_connpage, xchan_name, xchan_network, xchan_photo_date, xchan_name_date, xchan_flags) + values ( '%s', '%s', '%s', '%s' , '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d) ", dbesc($xchan_hash), dbesc($arr['guid']), dbesc($arr['guid_sig']), @@ -478,32 +699,95 @@ function import_xchan($arr) { dbesc($arr['address']), dbesc($arr['url']), dbesc($arr['connections_url']), + dbesc($arr['follow_url']), + dbesc($arr['connect_url']), dbesc($arr['name']), dbesc('zot'), dbesc($arr['photo_updated']), - dbesc($arr['name_updated']) + dbesc($arr['name_updated']), + intval($new_flags) ); + $what .= 'new_xchan'; + $changed = true; + } if($import_photos) { - require_once("Photo.php"); + require_once('include/photo/photo_driver.php'); - $photos = import_profile_photo($arr['photo'],$xchan_hash); - $r = q("update xchan set xchan_photo_date = '%s', xchan_photo_l = '%s', xchan_photo_m = '%s', xchan_photo_s = '%s', xchan_photo_mimetype = '%s' - where xchan_hash = '%s' limit 1", - dbesc($arr['photo_updated']), - dbesc($photos[0]), - dbesc($photos[1]), - dbesc($photos[2]), - dbesc($photos[3]), - dbesc($xchan_hash) + // see if this is a channel clone that's hosted locally - which we treat different from other xchans/connections + + $local = q("select channel_account_id, channel_id from channel where channel_hash = '%s' limit 1", + dbesc($xchan_hash) ); + if($local) { + $ph = z_fetch_url($arr['photo'],true); + if($ph['success']) { + import_channel_photo($ph['body'], $arr['photo_mimetype'], $local[0]['channel_account_id'],$local[0]['channel_id']); + // reset the names in case they got messed up when we had a bug in this function + $photos = array( + z_root() . '/photo/profile/l/' . $local[0]['channel_id'], + z_root() . '/photo/profile/m/' . $local[0]['channel_id'], + z_root() . '/photo/profile/s/' . $local[0]['channel_id'], + $arr['photo_mimetype'], + false + ); + } + } + else { + $photos = import_profile_photo($arr['photo'],$xchan_hash); + } + if($photos) { + if($photos[4]) { + // importing the photo failed somehow. Leave the photo_date alone so we can try again at a later date. + // This often happens when somebody joins the matrix with a bad cert. + $r = q("update xchan set xchan_photo_l = '%s', xchan_photo_m = '%s', xchan_photo_s = '%s', xchan_photo_mimetype = '%s' + where xchan_hash = '%s' limit 1", + dbesc($photos[0]), + dbesc($photos[1]), + dbesc($photos[2]), + dbesc($photos[3]), + dbesc($xchan_hash) + ); + } + else { + $r = q("update xchan set xchan_photo_date = '%s', xchan_photo_l = '%s', xchan_photo_m = '%s', xchan_photo_s = '%s', xchan_photo_mimetype = '%s' + where xchan_hash = '%s' limit 1", + dbesc(datetime_convert('UTC','UTC',$arr['photo_updated'])), + dbesc($photos[0]), + dbesc($photos[1]), + dbesc($photos[2]), + dbesc($photos[3]), + dbesc($xchan_hash) + ); + } + $what .= 'photo '; + $changed = true; + } } + // what we are missing for true hub independence is for any changes in the primary hub to + // get reflected not only in the hublocs, but also to update the URLs and addr in the appropriate xchan + if($arr['locations']) { + + $xisting = q("select hubloc_id, hubloc_url, hubloc_sitekey from hubloc where hubloc_hash = '%s'", + dbesc($xchan_hash) + ); + + // See if a primary is specified + + $has_primary = false; + foreach($arr['locations'] as $location) { + if($location['primary']) { + $has_primary = true; + break; + } + } + foreach($arr['locations'] as $location) { if(! rsa_verify($location['url'],base64url_decode($location['url_sig']),$arr['key'])) { logger('import_xchan: Unable to verify site signature for ' . $location['url']); @@ -511,22 +795,97 @@ function import_xchan($arr) { continue; } - $r = q("select * from hubloc where hubloc_hash = '%s' and hubloc_url = '%s' limit 1", + // Ensure that they have one primary hub + + if(! $has_primary) + $location['primary'] = true; + + + for($x = 0; $x < count($xisting); $x ++) { + if(($xisting[$x]['hubloc_url'] === $location['url']) && ($xisting[$x]['hubloc_sitekey'] === $location['sitekey'])) { + $xisting[$x]['updated'] = true; + } + } + + if(! $location['sitekey']) { + logger('import_xchan: empty hubloc sitekey. ' . print_r($location,true)); + continue; + } + + // Catch some malformed entries from the past which still exist + + if(strpos($location['address'],'/') !== false) + $location['address'] = substr($location['address'],0,strpos($location['address'],'/')); + + // match as many fields as possible in case anything at all changed. + + $r = q("select * from hubloc where hubloc_hash = '%s' and hubloc_guid = '%s' and hubloc_guid_sig = '%s' and hubloc_url = '%s' and hubloc_url_sig = '%s' and hubloc_host = '%s' and hubloc_addr = '%s' and hubloc_callback = '%s' and hubloc_sitekey = '%s' ", dbesc($xchan_hash), - dbesc($location['url']) + dbesc($arr['guid']), + dbesc($arr['guid_sig']), + dbesc($location['url']), + dbesc($location['url_sig']), + dbesc($location['host']), + dbesc($location['address']), + dbesc($location['callback']), + dbesc($location['sitekey']) ); if($r) { - if(($r[0]['hubloc_flags'] & HUBLOC_FLAGS_PRIMARY) && (! $location['primary'])) { - $r = q("update hubloc set hubloc_flags = (hubloc_flags ^ %d) where hubloc_id = %d limit 1", + logger('import_xchan: hub exists: ' . $location['url']); + // update connection timestamp if this is the site we're talking to + if($location['url'] == $arr['site']['url']) { + q("update hubloc set hubloc_connected = '%s', hubloc_updated = '%s' where hubloc_id = %d limit 1", + dbesc(datetime_convert()), + dbesc(datetime_convert()), + intval($r[0]['hubloc_id']) + ); + } + + // Remove pure duplicates + if(count($r) > 1) { + for($h = 1; $h < count($r); $h ++) { + q("delete from hubloc where hubloc_id = %d limit 1", + intval($r[$h]['hubloc_id']) + ); + } + } + + if((($r[0]['hubloc_flags'] & HUBLOC_FLAGS_PRIMARY) && (! $location['primary'])) + || ((! ($r[0]['hubloc_flags'] & HUBLOC_FLAGS_PRIMARY)) && ($location['primary']))) { + $r = q("update hubloc set hubloc_flags = (hubloc_flags ^ %d), hubloc_updated = '%s' where hubloc_id = %d limit 1", intval(HUBLOC_FLAGS_PRIMARY), + dbesc(datetime_convert()), + intval($r[0]['hubloc_id']) + ); + $what = 'primary_hub '; + $changed = true; + } + if((($r[0]['hubloc_flags'] & HUBLOC_FLAGS_DELETED) && (! $location['deleted'])) + || ((! ($r[0]['hubloc_flags'] & HUBLOC_FLAGS_DELETED)) && ($location['deleted']))) { + $r = q("update hubloc set hubloc_flags = (hubloc_flags ^ %d), hubloc_updated = '%s' where hubloc_id = %d limit 1", + intval(HUBLOC_FLAGS_DELETED), + dbesc(datetime_convert()), intval($r[0]['hubloc_id']) ); + $what = 'delete_hub '; + $changed = true; } continue; } - $r = q("insert into hubloc ( hubloc_guid, hubloc_guid_sig, hubloc_hash, hubloc_addr, hubloc_flags, hubloc_url, hubloc_url_sig, hubloc_host, hubloc_callback, hubloc_sitekey) - values ( '%s','%s','%s','%s', %d ,'%s','%s','%s','%s','%s')", + // new hub claiming to be primary. Make it so. + + if(intval($location['primary'])) { + $r = q("update hubloc set hubloc_flags = (hubloc_flags ^ %d), hubloc_updated = '%s' where hubloc_hash = '%s' and (hubloc_flags & %d )", + intval(HUBLOC_FLAGS_PRIMARY), + dbesc(datetime_convert()), + dbesc($xchan_hash), + intval(HUBLOC_FLAGS_PRIMARY) + ); + } + logger('import_xchan: new hub: ' . $location['url']); + $r = q("insert into hubloc ( hubloc_guid, hubloc_guid_sig, hubloc_hash, hubloc_addr, hubloc_flags, hubloc_url, hubloc_url_sig, hubloc_host, hubloc_callback, hubloc_sitekey, hubloc_updated, hubloc_connected) + values ( '%s','%s','%s','%s', %d ,'%s','%s','%s','%s','%s','%s','%s')", dbesc($arr['guid']), dbesc($arr['guid_sig']), dbesc($xchan_hash), @@ -536,11 +895,80 @@ function import_xchan($arr) { dbesc($location['url_sig']), dbesc($location['host']), dbesc($location['callback']), - dbesc($location['sitekey']) + dbesc($location['sitekey']), + dbesc(datetime_convert()), + dbesc(datetime_convert()) ); + $what .= 'newhub '; + $changed = true; } + // get rid of any hubs we have for this channel which weren't reported. + // This was needed at one time to resolve complicated cross-site inconsistencies, but can cause sync conflict. + // currently disabled. + +// if($xisting) { +// foreach($xisting as $x) { +// if(! array_key_exists('updated',$x)) { +// logger('import_xchan: removing unreferenced hub location ' . $x['hubloc_url']); +// $r = q("delete from hubloc where hubloc_id = %d limit 1", +// intval($x['hubloc_id']) +// ); +// $what .= 'removed_hub'; +// $changed = true; +// } +// } +// } + + } + + + + + + // Are we a directory server of some kind? + + if($dirmode != DIRECTORY_MODE_NORMAL) { + if(array_key_exists('profile',$arr) && is_array($arr['profile'])) { + $profile_changed = import_directory_profile($xchan_hash,$arr['profile'],$arr['address'],$ud_flags, 1); + if($profile_changed) { + $what .= 'profile '; + $changed = true; + } + } + else { + logger('import_xchan: profile not available - hiding'); + // they may have made it private + $r = q("delete from xprof where xprof_hash = '%s' limit 1", + dbesc($xchan_hash) + ); + $r = q("delete from xtag where xtag_hash = '%s' limit 1", + dbesc($xchan_hash) + ); + } + } + + if(array_key_exists('site',$arr) && is_array($arr['site'])) { + $profile_changed = import_site($arr['site'],$arr['key']); + if($profile_changed) { + $what .= 'site '; + $changed = true; + } + } + + if(($changed) || ($ud_flags == UPDATE_FLAGS_FORCED)) { + $guid = random_string() . '@' . get_app()->get_hostname(); + update_modtime($xchan_hash,$guid,$arr['address'],$ud_flags); + logger('import_xchan: changed: ' . $what,LOGGER_DEBUG); + } + elseif(! $ud_flags) { + // nothing changed but we still need to update the updates record + q("update updates set ud_flags = ( ud_flags | %d ) where ud_addr = '%s' and not (ud_flags & %d) ", + intval(UPDATE_FLAGS_UPDATED), + dbesc($arr['address']), + intval(UPDATE_FLAGS_UPDATED) + ); } if(! x($ret,'message')) { @@ -548,10 +976,26 @@ function import_xchan($arr) { $ret['hash'] = $xchan_hash; } + + logger('import_xchan: result: ' . print_r($ret,true), LOGGER_DATA); return $ret; } +/** + * @function zot_process_response($hub,$arr,$outq) { + * Called immediately after sending a zot message which is using queue processing + * Updates the queue item according to the response result and logs any information + * returned to aid communications troubleshooting. + * + * @param string $hub - url of site we just contacted + * @param array $arr - output of z_post_url() + * @param array $outq - The queue structure attached to this request + * + * @returns nothing + */ + + function zot_process_response($hub,$arr,$outq) { if(! $arr['success']) { @@ -586,6 +1030,20 @@ function zot_process_response($hub,$arr,$outq) { logger('zot_process_response: ' . print_r($x,true), LOGGER_DATA); } +/** + * @function zot_fetch($arr) + * + * We received a notification packet (in mod/post.php) that a message is waiting for us, and we've verified the sender. + * Now send back a pickup message, using our message tracking ID ($arr['secret']), which we will sign with our site private key. + * The entire pickup message is encrypted with the remote site's public key. + * If everything checks out on the remote end, we will receive back a packet containing one or more messages, + * which will be processed and delivered before this function ultimately returns. + * + * @param array $arr + * decrypted and json decoded notify packet from remote site + */ + + function zot_fetch($arr) { logger('zot_fetch: ' . print_r($arr,true), LOGGER_DATA); @@ -594,13 +1052,9 @@ function zot_fetch($arr) { $ret_hub = zot_gethub($arr['sender']); if(! $ret_hub) { - logger('zot_fetch: not ret_hub'); + logger('zot_fetch: no hub: ' . print_r($arr['sender'],true)); return; } - - - $ret_secret = json_encode(array($arr['secret'],'secret_sig' => base64url_encode(rsa_sign($arr['secret'],get_config('system','prvkey'))))); - $data = array( 'type' => 'pickup', @@ -611,19 +1065,32 @@ function zot_fetch($arr) { 'secret_sig' => base64url_encode(rsa_sign($arr['secret'],get_config('system','prvkey'))) ); - - $datatosend = json_encode(aes_encapsulate(json_encode($data),$ret_hub['hubloc_sitekey'])); + $datatosend = json_encode(crypto_encapsulate(json_encode($data),$ret_hub['hubloc_sitekey'])); $fetch = zot_zot($url,$datatosend); - - $result = zot_import($fetch); + $result = zot_import($fetch, $arr['sender']['url']); return $result; } +/** + * @function zot_import + * + * Process an incoming array of messages which were obtained via pickup, and + * import, update, delete as directed. + * + * @param array $arr => 'pickup' structure returned from remote site + * @param string $sender_url => the url specified by the sender in the initial communication + * we will verify the sender and url in each returned message structure and also verify + * that all the messages returned match the site url that we are currently processing. + * + * The message types handled here are 'activity' (e.g. posts), 'mail' , 'profile', and 'channel_sync' + * + * @returns array => array ( [0] => string $channel_hash, [1] => string $delivery_status, [2] => string $address ) + * suitable for logging remotely, enumerating the processing results of each message/recipient combination. + * + */ -function zot_import($arr) { - -// logger('zot_import: ' . print_r($arr,true), LOGGER_DATA); +function zot_import($arr, $sender_url) { $data = json_decode($arr['body'],true); @@ -632,14 +1099,10 @@ function zot_import($arr) { return array(); } -// logger('zot_import: data1: ' . print_r($data,true)); - if(array_key_exists('iv',$data)) { - $data = json_decode(aes_unencapsulate($data,get_config('system','prvkey')),true); + $data = json_decode(crypto_unencapsulate($data,get_config('system','prvkey')),true); } - logger('zot_import: data' . print_r($data,true), LOGGER_DATA); - $incoming = $data['pickup']; $return = array(); @@ -649,11 +1112,18 @@ function zot_import($arr) { $result = null; if(array_key_exists('iv',$i['notify'])) { - $i['notify'] = json_decode(aes_unencapsulate($i['notify'],get_config('system','prvkey')),true); + $i['notify'] = json_decode(crypto_unencapsulate($i['notify'],get_config('system','prvkey')),true); } logger('zot_import: notify: ' . print_r($i['notify'],true), LOGGER_DATA); + $hub = zot_gethub($i['notify']['sender']); + if((! $hub) || ($hub['hubloc_url'] != $sender_url)) { + logger('zot_import: potential forgery: wrong site for sender: ' . $sender_url . ' != ' . print_r($i['notify'],true)); + continue; + } + + $i['notify']['sender']['hash'] = base64url_encode(hash('whirlpool',$i['notify']['sender']['guid'] . $i['notify']['sender']['guid_sig'], true)); $deliveries = null; @@ -665,7 +1135,9 @@ function zot_import($arr) { } stringify_array_elms($recip_arr); $recips = implode(',',$recip_arr); - $r = q("select channel_hash as hash from channel where channel_hash in ( " . $recips . " ) "); + $r = q("select channel_hash as hash from channel where channel_hash in ( " . $recips . " ) and not ( channel_pageflags & %d ) ", + intval(PAGE_REMOVED) + ); if(! $r) { logger('recips: no recipients on this site'); continue; @@ -677,25 +1149,52 @@ function zot_import($arr) { } else { + if(($i['message']) && (array_key_exists('flags',$i['message'])) && (in_array('private',$i['message']['flags']))) { + // This should not happen but until we can stop it... + logger('private message was delivered with no recipients.'); + continue; + } + logger('public post'); // Public post. look for any site members who are or may be accepting posts from this sender // and who are allowed to see them based on the sender's permissions $deliveries = allowed_public_recips($i); + } + + // Go through the hash array and remove duplicates. array_unique() won't do this because the array is more than one level. + + $no_dups = array(); + if($deliveries) { + foreach($deliveries as $d) { + if(! in_array($d['hash'],$no_dups)) + $no_dups[] = $d['hash']; + } + + if($no_dups) { + $deliveries = array(); + foreach($no_dups as $n) { + $deliveries[] = array('hash' => $n); + } + } + } + if(! $deliveries) { logger('zot_import: no deliveries on this site'); continue; } - + if($i['message']) { if($i['message']['type'] === 'activity') { $arr = get_item_elements($i['message']); + if(! array_key_exists('created',$arr)) { logger('Activity rejected: probable failure to lookup author/owner. ' . print_r($i['message'],true)); continue; } + logger('Activity received: ' . print_r($arr,true), LOGGER_DATA); logger('Activity recipients: ' . print_r($deliveries,true), LOGGER_DATA); @@ -722,9 +1221,20 @@ function zot_import($arr) { $result = process_profile_delivery($i['notify']['sender'],$arr,$deliveries); } + elseif($i['message']['type'] === 'channel_sync') { +// $arr = get_channelsync_elements($i['message']); + + $arr = $i['message']; + + logger('Channel sync received: ' . print_r($arr,true), LOGGER_DATA); + logger('Channel sync recipients: ' . print_r($deliveries,true), LOGGER_DATA); + + $result = process_channel_sync_delivery($i['notify']['sender'],$arr,$deliveries); + } } - if($result) + if($result){ $return = array_merge($return,$result); + } } } @@ -743,14 +1253,24 @@ function zot_import($arr) { function public_recips($msg) { + $check_mentions = false; if($msg['message']['type'] === 'activity') { + $col = 'channel_w_stream'; + $field = PERMS_W_STREAM; if(array_key_exists('flags',$msg['message']) && in_array('thread_parent', $msg['message']['flags'])) { - $col = 'channel_w_stream'; - $field = PERMS_W_STREAM; + // check mention recipient permissions on top level posts only + $check_mentions = true; } else { - $col = 'channel_w_comment'; - $field = PERMS_W_COMMENT; + // if this is a comment and it wasn't sent by the post owner, check to see who is allowing them to comment. + // We should have one specific recipient and this step shouldn't be needed unless somebody stuffed up their software. + // We may need this step to protect us from bad guys intentionally stuffing up their software. + // If it is sent by the post owner, we don't need to do this. We only need to see who is receiving the + // owner's stream (which was already set above) - as they control the comment permissions + if($msg['notify']['sender']['guid_sig'] != $msg['message']['owner']['guid_sig']) { + $col = 'channel_w_comment'; + $field = PERMS_W_COMMENT; + } } } elseif($msg['message']['type'] === 'mail') { @@ -761,18 +1281,21 @@ function public_recips($msg) { if(! $col) return NULL; + if($msg['notify']['sender']['url'] === z_root()) - $sql = " where (( " . $col . " & " . PERMS_NETWORK . " ) or ( " . $col . " & " . PERMS_SITE . " )) "; + $sql = " where (( " . $col . " & " . PERMS_NETWORK . " ) or ( " . $col . " & " . PERMS_SITE . " ) or ( " . $col . " & " . PERMS_PUBLIC . ")) "; else - $sql = " where ( " . $col . " & " . PERMS_NETWORK . " ) " ; + $sql = " where (( " . $col . " & " . PERMS_NETWORK . " ) or ( " . $col . " & " . PERMS_PUBLIC . ")) "; + - $r = q("select channel_hash as hash from channel " . $sql ); + $r = q("select channel_hash as hash from channel $sql or channel_hash = '%s' ", + dbesc($msg['notify']['sender']['hash']) + ); if(! $r) $r = array(); - $x = q("select channel_hash as hash from channel left join abook on abook_channel = channel_id where abook_xchan = '%s' - and (( " . $col . " & " . PERMS_SPECIFIC . " ) OR ( " . $col . " & " . PERMS_CONTACTS . " )) and ( abook_my_perms & " . $field . " ) ", + $x = q("select channel_hash as hash from channel left join abook on abook_channel = channel_id where abook_xchan = '%s' and not ( channel_pageflags & " . PAGE_REMOVED . " ) and (( " . $col . " & " . PERMS_SPECIFIC . " ) and ( abook_my_perms & " . $field . " )) OR ( " . $col . " & " . PERMS_CONTACTS . " ) ", dbesc($msg['notify']['sender']['hash']) ); @@ -781,6 +1304,27 @@ function public_recips($msg) { $r = array_merge($r,$x); + // look for any public mentions on this site + // They will get filtered by tgroup_check() so we don't need to check permissions now + + if($check_mentions && $msg['message']['tags']) { + if(is_array($msg['message']['tags']) && $msg['message']['tags']) { + foreach($msg['message']['tags'] as $tag) { + if(($tag['type'] === 'mention') && (strpos($tag['url'],z_root()) !== false)) { + $address = basename($tag['url']); + if($address) { + $z = q("select channel_hash as hash from channel where channel_address = '%s' limit 1", + dbesc($address) + ); + if($z) + $r = array_merge($r,$z); + } + } + } + } + } + + logger('public_recips: ' . print_r($r,true), LOGGER_DATA); return $r; } @@ -803,11 +1347,6 @@ function allowed_public_recips($msg) { if(array_key_exists('public_scope',$msg['message'])) $scope = $msg['message']['public_scope']; - // we can pull out these two lines once everybody has upgraded to >= 2013-02-15.225 - - else - $scope = 'public'; - $hash = base64url_encode(hash('whirlpool',$msg['notify']['sender']['guid'] . $msg['notify']['sender']['guid_sig'], true)); if($scope === 'public' || $scope === 'network: red') @@ -832,8 +1371,9 @@ function allowed_public_recips($msg) { $condensed_recips[] = $rr['hash']; $results = array(); - $r = q("select channel_hash as hash from channel left join abook on abook_channel = channel_id where abook_hash = '%s' ", - dbesc($hash) + $r = q("select channel_hash as hash from channel left join abook on abook_channel = channel_id where abook_xchan = '%s' and not ( channel_pageflags & %d ) ", + dbesc($hash), + intval(PAGE_REMOVED) ); if($r) { foreach($r as $rr) @@ -847,9 +1387,19 @@ function allowed_public_recips($msg) { } -function process_delivery($sender,$arr,$deliveries,$relay) { +function process_delivery($sender,$arr,$deliveries,$relay,$public = false) { $result = array(); + + + // We've validated the sender. Now make sure that the sender is the owner or author + + if(! $public) { + if($sender['hash'] != $arr['owner_xchan'] && $sender['hash'] != $arr['author_xchan']) { + logger("process_delivery: sender {$sender['hash']} is not owner {$arr['owner_xchan']} or author {$arr['author_xchan']} - mid {$arr['mid']}"); + return; + } + } foreach($deliveries as $d) { $r = q("select * from channel where channel_hash = '%s' limit 1", @@ -857,50 +1407,68 @@ function process_delivery($sender,$arr,$deliveries,$relay) { ); if(! $r) { - $result[] = array($d['hash'],'not found'); + $result[] = array($d['hash'],'recipients not found'); continue; } $channel = $r[0]; - $perm = (($arr['uri'] == $arr['parent_uri']) ? 'send_stream' : 'post_comments'); + $tag_delivery = tgroup_check($channel['channel_id'],$arr); + + $perm = (($arr['mid'] == $arr['parent_mid']) ? 'send_stream' : 'post_comments'); - if(! perm_is_allowed($channel['channel_id'],$sender['hash'],$perm)) { - logger("permission denied for delivery {$channel['channel_id']}"); - $result[] = array($d['hash'],'permission denied'); + // This is our own post, possibly coming from a channel clone + + if($arr['owner_xchan'] == $d['hash']) { + $arr['item_flags'] = $arr['item_flags'] | ITEM_WALL; + } + else { + // clear the wall flag if it is set + if($arr['item_flags'] & ITEM_WALL) { + $arr['item_flags'] = ($arr['item_flags'] ^ ITEM_WALL); + } + } + + if((! perm_is_allowed($channel['channel_id'],$sender['hash'],$perm)) && (! $tag_delivery) && (! $public)) { + logger("permission denied for delivery to channel {$channel['channel_id']} {$channel['channel_address']}"); + $result[] = array($d['hash'],'permission denied',$channel['channel_name'] . ' <' . $channel['channel_address'] . '@' . get_app()->get_hostname() . '>',$arr['mid']); continue; } if($arr['item_restrict'] & ITEM_DELETED) { + + // remove_community_tag is a no-op if this isn't a community tag activity + remove_community_tag($sender,$arr,$channel['channel_id']); + $item_id = delete_imported_item($sender,$arr,$channel['channel_id']); - $result[] = array($d['hash'],'deleted'); + $result[] = array($d['hash'],(($item_id) ? 'deleted' : 'delete_failed'),$channel['channel_name'] . ' <' . $channel['channel_address'] . '@' . get_app()->get_hostname() . '>',$arr['mid']); if($relay && $item_id) { logger('process_delivery: invoking relay'); proc_run('php','include/notifier.php','relay',intval($item_id)); - $result[] = array($d['hash'],'relayed'); + $result[] = array($d['hash'],'relayed',$channel['channel_name'] . ' <' . $channel['channel_address'] . '@' . get_app()->get_hostname() . '>',$arr['mid']); } continue; } - // for events, extract the event info and create and event linked to an item + // for events, extract the event info and create an event linked to an item if((x($arr,'obj_type')) && (activity_match($arr['obj_type'],ACTIVITY_OBJ_EVENT))) { require_once('include/event.php'); $ev = bbtoevent($arr['body']); - if(x($ev,'desc') && x($ev,'start')) { + if(x($ev,'description') && x($ev,'start')) { $ev['event_xchan'] = $arr['author_xchan']; $ev['uid'] = $channel['channel_id']; $ev['account'] = $channel['channel_account_id']; $ev['edited'] = $arr['edited']; - $ev['uri'] = $arr['uri']; + $ev['mid'] = $arr['mid']; $ev['private'] = $arr['item_private']; // is this an edit? - $r = q("SELECT resource_id FROM item where uri = '%s' and uid = %d and resource_type = 'event' limit 1", - dbesc($arr['uri']), + $r = q("SELECT resource_id FROM item where mid = '%s' and uid = %d and resource_type = 'event' limit 1", + dbesc($arr['mid']), intval($channel['channel_id']) ); if($r) { @@ -908,40 +1476,45 @@ function process_delivery($sender,$arr,$deliveries,$relay) { } $xyz = event_store($ev); + add_source_route($xyz,$sender['hash']); - $result = array($d['hash'],'event processed'); + $result = array($d['hash'],'event processed',$channel['channel_name'] . ' <' . $channel['channel_address'] . '@' . get_app()->get_hostname() . '>',$arr['mid']); continue; } } - - - $r = q("select id, edited from item where uri = '%s' and uid = %d limit 1", - dbesc($arr['uri']), + $r = q("select id, edited from item where mid = '%s' and uid = %d limit 1", + dbesc($arr['mid']), intval($channel['channel_id']) ); if($r) { - if($arr['edited'] > $r[0]['edited']) + if($arr['edited'] > $r[0]['edited']) { + $arr['id'] = $r[0]['id']; + $arr['uid'] = $channel['channel_id']; update_imported_item($sender,$arr,$channel['channel_id']); - $result[] = array($d['hash'],'updated'); + } + $result[] = array($d['hash'],'updated',$channel['channel_name'] . ' <' . $channel['channel_address'] . '@' . get_app()->get_hostname() . '>',$arr['mid']); $item_id = $r[0]['id']; } else { $arr['aid'] = $channel['channel_account_id']; $arr['uid'] = $channel['channel_id']; - $item_id = item_store($arr); - $result[] = array($d['hash'],'posted'); + $item_result = item_store($arr); + $item_id = $item_result['item_id']; + add_source_route($item_id,$sender['hash']); + + $result[] = array($d['hash'],(($item_id) ? 'posted' : 'storage failed:' . $item_result['message']),$channel['channel_name'] . ' <' . $channel['channel_address'] . '@' . get_app()->get_hostname() . '>',$arr['mid']); } if($relay && $item_id) { logger('process_delivery: invoking relay'); proc_run('php','include/notifier.php','relay',intval($item_id)); - $result[] = array($d['hash'],'relayed'); + $result[] = array($d['hash'],'relayed',$channel['channel_name'] . ' <' . $channel['channel_address'] . '@' . get_app()->get_hostname() . '>',$arr['mid']); } } if(! $deliveries) - $result[] = array('','no recipients'); + $result[] = array('','no recipients','',$arr['mid']); logger('process_delivery: local results: ' . print_r($result,true), LOGGER_DEBUG); @@ -949,9 +1522,75 @@ function process_delivery($sender,$arr,$deliveries,$relay) { } +function remove_community_tag($sender,$arr,$uid) { + + if(! (activity_match($arr['verb'],ACTIVITY_TAG) && ($arr['obj_type'] == ACTIVITY_OBJ_TAGTERM))) + return; + + logger('remove_community_tag: invoked'); + + + if(! get_pconfig($uid,'system','blocktags')) { + logger('remove_community tag: permission denied.'); + return; + } + + $r = q("select * from item where mid = '%s' and uid = %d limit 1", + dbesc($arr['mid']), + intval($uid) + ); + if(! $r) { + logger('remove_community_tag: no item'); + return; + } + + if(($sender['hash'] != $r[0]['owner_xchan']) && ($sender['hash'] != $r[0]['author_xchan'])) { + logger('remove_community_tag: sender not authorised.'); + return; + } + + $i = $r[0]; + + if($i['target']) + $i['target'] = json_decode_plus($i['target']); + if($i['object']) + $i['object'] = json_decode_plus($i['object']); + + if(! ($i['target'] && $i['object'])) { + logger('remove_community_tag: no target/object'); + return; + } + + $message_id = $i['target']['id']; + + $r = q("select id from item where mid = '%s' and uid = %d limit 1", + dbesc($message_id), + intval($uid) + ); + if(! $r) { + logger('remove_community_tag: no parent message'); + return; + } + + $x = q("delete from term where uid = %d and oid = %d and otype = %d and type = %d and term = '%s' and url = '%s' limit 1", + intval($uid), + intval($r[0]['id']), + intval(TERM_OBJ_POST), + intval(TERM_HASHTAG), + dbesc($i['object']['title']), + dbesc(get_rel_link($i['object']['link'],'alternate')) + ); + + return; +} + function update_imported_item($sender,$item,$uid) { -// FIXME - logger('update_imported_item'); + + $x = item_store_update($item); + if(! $x['item_id']) + logger('update_imported_item: failed: ' . $x['message']); + else + logger('update_imported_item'); } @@ -959,11 +1598,12 @@ function delete_imported_item($sender,$item,$uid) { logger('delete_imported_item invoked',LOGGER_DEBUG); - $r = q("select id from item where ( author_xchan = '%s' or owner_xchan = '%s' ) - and uri = '%s' and uid = %d limit 1", + $r = q("select id, item_restrict from item where ( author_xchan = '%s' or owner_xchan = '%s' or source_xchan = '%s' ) + and mid = '%s' and uid = %d limit 1", + dbesc($sender['hash']), dbesc($sender['hash']), dbesc($sender['hash']), - dbesc($item['uri']), + dbesc($item['mid']), intval($uid) ); @@ -971,44 +1611,88 @@ function delete_imported_item($sender,$item,$uid) { logger('delete_imported_item: failed: ownership issue'); return false; } + + if($r[0]['item_restrict'] & ITEM_DELETED) { + logger('delete_imported_item: item was already deleted'); + return false; + } require_once('include/items.php'); - drop_item($r[0]['id'],false); + + // FIXME issue #230 is related + // Chicken/egg problem because we have to drop_item, but this removes information that tag_deliver may need to do its stuff. + // We can't reverse the order because drop_item refuses to run if the item already has the deleted flag set and we need to + // set that flag prior to calling tag_deliver. + + // Use phased deletion to set the deleted flag, call both tag_deliver and the notifier to notify downstream channels + // and then clean up after ourselves with a cron job after several days to do the delete_item_lowlevel() (DROPITEM_PHASE2). + + drop_item($r[0]['id'],false, DROPITEM_PHASE1); + + tag_deliver($uid,$r[0]['id']); + return $r[0]['id']; } function process_mail_delivery($sender,$arr,$deliveries) { + + + $result = array(); + + + if($sender['hash'] != $arr['from_xchan']) { + logger('process_mail_delivery: sender is not mail author'); + return; + } + + foreach($deliveries as $d) { $r = q("select * from channel where channel_hash = '%s' limit 1", dbesc($d['hash']) ); - if(! $r) + if(! $r) { + $result[] = array($d['hash'],'not found'); continue; + } $channel = $r[0]; if(! perm_is_allowed($channel['channel_id'],$sender['hash'],'post_mail')) { logger("permission denied for mail delivery {$channel['channel_id']}"); + $result[] = array($d['hash'],'permission denied',$channel['channel_name'],$arr['mid']); continue; } - $r = q("select id from mail where uri = '%s' and channel_id = %d limit 1", - dbesc($arr['uri']), + $r = q("select id from mail where mid = '%s' and channel_id = %d limit 1", + dbesc($arr['mid']), intval($channel['channel_id']) ); if($r) { - logger('duplicate mail received'); + if($arr['mail_flags'] & MAIL_RECALLED) { + $x = q("delete from mail where id = %d and channel_id = %d limit 1", + intval($r[0]['id']), + intval($channel['channel_id']) + ); + $result[] = array($d['hash'],'mail recalled',$channel['channel_name'],$arr['mid']); + logger('mail_recalled'); + } + else { + $result[] = array($d['hash'],'duplicate mail received',$channel['channel_name'],$arr['mid']); + logger('duplicate mail received'); + } continue; } else { $arr['account_id'] = $channel['channel_account_id']; $arr['channel_id'] = $channel['channel_id']; $item_id = mail_store($arr); + $result[] = array($d['hash'],'mail delivered',$channel['channel_name'],$arr['mid']); } } + return $result; } function process_profile_delivery($sender,$arr,$deliveries) { @@ -1016,74 +1700,124 @@ function process_profile_delivery($sender,$arr,$deliveries) { // deliveries is irrelevant, what to do about birthday notification....? logger('process_profile_delivery', LOGGER_DEBUG); - import_directory_profile($sender['hash'],$arr); + + $r = q("select xchan_addr from xchan where xchan_hash = '%s' limit 1", + dbesc($sender['hash']) + ); + if($r) + import_directory_profile($sender['hash'],$arr,$r[0]['xchan_addr'], UPDATE_FLAGS_UPDATED, 0); } -function import_directory_profile($hash,$profile) { + +/* + * @function import_directory_profile + * + * @returns boolean $updated if something changed + * + */ + +function import_directory_profile($hash,$profile,$addr,$ud_flags = UPDATE_FLAGS_UPDATED, $suppress_update = 0) { logger('import_directory_profile', LOGGER_DEBUG); if(! $hash) - return; + return false; $arr = array(); $arr['xprof_hash'] = $hash; - $arr['xprof_desc'] = (($profile['description']) ? htmlentities($profile['description'], ENT_COMPAT,'UTF-8',false) : ''); $arr['xprof_dob'] = datetime_convert('','',$profile['birthday'],'Y-m-d'); // !!!! check this for 0000 year - $arr['xprof_gender'] = (($profile['gender']) ? htmlentities($profile['gender'], ENT_COMPAT,'UTF-8',false) : ''); - $arr['xprof_marital'] = (($profile['marital']) ? htmlentities($profile['marital'], ENT_COMPAT,'UTF-8',false) : ''); - $arr['xprof_sexual'] = (($profile['sexual']) ? htmlentities($profile['sexual'], ENT_COMPAT,'UTF-8',false) : ''); - $arr['xprof_locale'] = (($profile['locale']) ? htmlentities($profile['locale'], ENT_COMPAT,'UTF-8',false) : ''); - $arr['xprof_region'] = (($profile['region']) ? htmlentities($profile['region'], ENT_COMPAT,'UTF-8',false) : ''); - $arr['xprof_postcode'] = (($profile['postcode']) ? htmlentities($profile['postcode'], ENT_COMPAT,'UTF-8',false) : ''); - $arr['xprof_country'] = (($profile['country']) ? htmlentities($profile['country'], ENT_COMPAT,'UTF-8',false) : ''); + $arr['xprof_age'] = (($profile['age']) ? intval($profile['age']) : 0); + $arr['xprof_desc'] = (($profile['description']) ? htmlspecialchars($profile['description'], ENT_COMPAT,'UTF-8',false) : ''); + $arr['xprof_gender'] = (($profile['gender']) ? htmlspecialchars($profile['gender'], ENT_COMPAT,'UTF-8',false) : ''); + $arr['xprof_marital'] = (($profile['marital']) ? htmlspecialchars($profile['marital'], ENT_COMPAT,'UTF-8',false) : ''); + $arr['xprof_sexual'] = (($profile['sexual']) ? htmlspecialchars($profile['sexual'], ENT_COMPAT,'UTF-8',false) : ''); + $arr['xprof_locale'] = (($profile['locale']) ? htmlspecialchars($profile['locale'], ENT_COMPAT,'UTF-8',false) : ''); + $arr['xprof_region'] = (($profile['region']) ? htmlspecialchars($profile['region'], ENT_COMPAT,'UTF-8',false) : ''); + $arr['xprof_postcode'] = (($profile['postcode']) ? htmlspecialchars($profile['postcode'], ENT_COMPAT,'UTF-8',false) : ''); + $arr['xprof_country'] = (($profile['country']) ? htmlspecialchars($profile['country'], ENT_COMPAT,'UTF-8',false) : ''); + $arr['xprof_about'] = (($profile['about']) ? htmlspecialchars($profile['about'], ENT_COMPAT,'UTF-8',false) : ''); + $arr['xprof_homepage'] = (($profile['homepage']) ? htmlspecialchars($profile['homepage'], ENT_COMPAT,'UTF-8',false) : ''); + $arr['xprof_hometown'] = (($profile['hometown']) ? htmlspecialchars($profile['hometown'], ENT_COMPAT,'UTF-8',false) : ''); $clean = array(); if(array_key_exists('keywords',$profile) and is_array($profile['keywords'])) { import_directory_keywords($hash,$profile['keywords']); foreach($profile['keywords'] as $kw) { - $kw = trim(htmlentities($kw,ENT_COMPAT,'UTF-8',false)); + $kw = trim(htmlspecialchars($kw,ENT_COMPAT,'UTF-8',false)); + $kw = trim($kw,','); + $clean[] = $kw; } - $clean[] = $kw; } $arr['xprof_keywords'] = implode(' ',$clean); + // Self censored, make it so + // These are not translated, so the German "erwachsenen" keyword will not censor the directory profile. Only the English form - "adult". + + + if(in_arrayi('nsfw',$clean) || in_arrayi('adult',$clean)) { + q("update xchan set xchan_flags = (xchan_flags | %d) where xchan_hash = '%s' limit 1", + intval(XCHAN_FLAGS_SELFCENSORED), + dbesc($hash) + ); + } + $r = q("select * from xprof where xprof_hash = '%s' limit 1", dbesc($hash) ); if($r) { - $x = q("update xprof set - xprof_desc = '%s', - xprof_dob = '%s', - xprof_gender = '%s', - xprof_marital = '%s', - xprof_sexual = '%s', - xprof_locale = '%s', - xprof_region = '%s', - xprof_postcode = '%s', - xprof_country = '%s', - xprof_keywords = '%s' - where xprof_hash = '%s' limit 1", - dbesc($arr['xprof_desc']), - dbesc($arr['xprof_dob']), - dbesc($arr['xprof_gender']), - dbesc($arr['xprof_marital']), - dbesc($arr['xprof_sexual']), - dbesc($arr['xprof_locale']), - dbesc($arr['xprof_region']), - dbesc($arr['xprof_postcode']), - dbesc($arr['xprof_country']), - dbesc($arr['xprof_keywords']), - dbesc($arr['xprof_hash']) - ); + $update = false; + foreach($r[0] as $k => $v) { + if((array_key_exists($k,$arr)) && ($arr[$k] != $v)) { + logger('import_directory_profile: update' . $k . ' => ' . $arr[$k]); + $update = true; + break; + } + } + if($update) { + $x = q("update xprof set + xprof_desc = '%s', + xprof_dob = '%s', + xprof_age = %d, + xprof_gender = '%s', + xprof_marital = '%s', + xprof_sexual = '%s', + xprof_locale = '%s', + xprof_region = '%s', + xprof_postcode = '%s', + xprof_country = '%s', + xprof_about = '%s', + xprof_homepage = '%s', + xprof_hometown = '%s', + xprof_keywords = '%s' + where xprof_hash = '%s' limit 1", + dbesc($arr['xprof_desc']), + dbesc($arr['xprof_dob']), + intval($arr['xprof_age']), + dbesc($arr['xprof_gender']), + dbesc($arr['xprof_marital']), + dbesc($arr['xprof_sexual']), + dbesc($arr['xprof_locale']), + dbesc($arr['xprof_region']), + dbesc($arr['xprof_postcode']), + dbesc($arr['xprof_country']), + dbesc($arr['xprof_about']), + dbesc($arr['xprof_homepage']), + dbesc($arr['xprof_hometown']), + dbesc($arr['xprof_keywords']), + dbesc($arr['xprof_hash']) + ); + } } else { - $x = q("insert into xprof (xprof_hash, xprof_desc, xprof_dob, xprof_gender, xprof_marital, xprof_sexual, xprof_locale, xprof_region, xprof_postcode, xprof_country, xprof_keywords) values ('%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s') ", + $update = true; + logger('import_directory_profile: new profile'); + $x = q("insert into xprof (xprof_hash, xprof_desc, xprof_dob, xprof_age, xprof_gender, xprof_marital, xprof_sexual, xprof_locale, xprof_region, xprof_postcode, xprof_country, xprof_about, xprof_homepage, xprof_hometown, xprof_keywords) values ('%s', '%s', '%s', %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s') ", dbesc($arr['xprof_hash']), dbesc($arr['xprof_desc']), dbesc($arr['xprof_dob']), + intval($arr['xprof_age']), dbesc($arr['xprof_gender']), dbesc($arr['xprof_marital']), dbesc($arr['xprof_sexual']), @@ -1091,11 +1825,19 @@ function import_directory_profile($hash,$profile) { dbesc($arr['xprof_region']), dbesc($arr['xprof_postcode']), dbesc($arr['xprof_country']), + dbesc($arr['xprof_about']), + dbesc($arr['xprof_homepage']), + dbesc($arr['xprof_hometown']), dbesc($arr['xprof_keywords']) ); } - return; + $d = array('xprof' => $arr, 'profile' => $profile, 'update' => $update); + call_hooks('import_directory_profile', $d); + + if(($d['update']) && (! $suppress_update)) + update_modtime($arr['xprof_hash'],random_string() . '@' . get_app()->get_hostname(), $addr, $ud_flags); + return $d['update']; } function import_directory_keywords($hash,$keywords) { @@ -1112,7 +1854,8 @@ function import_directory_keywords($hash,$keywords) { $clean = array(); foreach($keywords as $kw) { - $kw = trim(htmlentities($kw,ENT_COMPAT,'UTF-8',false)); + $kw = trim(htmlspecialchars($kw,ENT_COMPAT,'UTF-8',false)); + $kw = trim($kw,','); $clean[] = $kw; } @@ -1125,9 +1868,422 @@ function import_directory_keywords($hash,$keywords) { } foreach($clean as $x) { if(! in_array($x,$existing)) - $r = q("insert int xtag ( xtag_hash, xtag_term) values ( '%s' ,'%s' )", + $r = q("insert into xtag ( xtag_hash, xtag_term) values ( '%s' ,'%s' )", dbesc($hash), dbesc($x) ); } -}
\ No newline at end of file +} + + +function update_modtime($hash,$guid,$addr,$flags = 0) { + + $dirmode = intval(get_config('system','directory_mode')); + + if($dirmode == DIRECTORY_MODE_NORMAL) + return; + + if($flags) { + q("insert into updates (ud_hash, ud_guid, ud_date, ud_flags, ud_addr ) values ( '%s', '%s', '%s', %d, '%s' )", + dbesc($hash), + dbesc($guid), + dbesc(datetime_convert()), + intval($flags), + dbesc($addr) + ); + } + else { + q("update updates set ud_flags = ( ud_flags | %d ) where ud_addr = '%s' and not (ud_flags & %d) ", + intval(UPDATE_FLAGS_UPDATED), + dbesc($addr), + intval(UPDATE_FLAGS_UPDATED) + ); + } +} + + +function import_site($arr,$pubkey) { + if( (! is_array($arr)) || (! $arr['url']) || (! $arr['url_sig'])) + return false; + + if(! rsa_verify($arr['url'],base64url_decode($arr['url_sig']),$pubkey)) { + logger('import_site: bad url_sig'); + return false; + } + + $update = false; + $exists = false; + + $r = q("select * from site where site_url = '%s' limit 1", + dbesc($arr['url']) + ); + if($r) { + $exists = true; + $siterecord = $r[0]; + } + + $site_directory = 0; + if($arr['directory_mode'] == 'normal') + $site_directory = DIRECTORY_MODE_NORMAL; + + if($arr['directory_mode'] == 'primary') + $site_directory = DIRECTORY_MODE_PRIMARY; + if($arr['directory_mode'] == 'secondary') + $site_directory = DIRECTORY_MODE_SECONDARY; + if($arr['directory_mode'] == 'standalone') + $site_directory = DIRECTORY_MODE_STANDALONE; + + $register_policy = 0; + if($arr['register_policy'] == 'closed') + $register_policy = REGISTER_CLOSED; + if($arr['register_policy'] == 'open') + $register_policy = REGISTER_OPEN; + if($arr['register_policy'] == 'approve') + $register_policy = REGISTER_APPROVE; + + $access_policy = 0; + if(array_key_exists('access_policy',$arr)) { + if($arr['access_policy'] === 'private') + $access_policy = ACCESS_PRIVATE; + if($arr['access_policy'] === 'paid') + $access_policy = ACCESS_PAID; + if($arr['access_policy'] === 'free') + $access_policy = ACCESS_FREE; + if($arr['access_policy'] === 'tiered') + $access_policy = ACCESS_TIERED; + } + + // don't let insecure sites register as public hubs + + if(strpos($arr['url'],'https://') === false) + $access_policy = ACCESS_PRIVATE; + + if($access_policy != ACCESS_PRIVATE) { + $x = z_fetch_url($arr['url'] . '/siteinfo/json'); + if(! $x['success']) + $access_policy = ACCESS_PRIVATE; + } + + $directory_url = htmlspecialchars($arr['directory_url'],ENT_COMPAT,'UTF-8',false); + $url = htmlspecialchars($arr['url'],ENT_COMPAT,'UTF-8',false); + $sellpage = htmlspecialchars($arr['sellpage'],ENT_COMPAT,'UTF-8',false); + $site_location = htmlspecialchars($arr['location'],ENT_COMPAT,'UTF-8',false); + + if($exists) { + if(($siterecord['site_flags'] != $site_directory) + || ($siterecord['site_access'] != $access_policy) + || ($siterecord['site_directory'] != $directory_url) + || ($siterecord['site_sellpage'] != $sellpage) + || ($siterecord['site_location'] != $site_location) + || ($siterecord['site_register'] != $register_policy)) { + $update = true; + +// logger('import_site: input: ' . print_r($arr,true)); +// logger('import_site: stored: ' . print_r($siterecord,true)); + + $r = q("update site set site_location = '%s', site_flags = %d, site_access = %d, site_directory = '%s', site_register = %d, site_update = '%s', site_sellpage = '%s' + where site_url = '%s' limit 1", + dbesc($site_location), + intval($site_directory), + intval($access_policy), + dbesc($directory_url), + intval($register_policy), + dbesc(datetime_convert()), + dbesc($sellpage), + dbesc($url) + ); + if(! $r) { + logger('import_site: update failed. ' . print_r($arr,true)); + } + } + } + else { + $update = true; + $r = q("insert into site ( site_location, site_url, site_access, site_flags, site_update, site_directory, site_register, site_sellpage ) + values ( '%s', '%s', %d, %d, '%s', '%s', %d, '%s' )", + dbesc($site_location), + dbesc($url), + intval($access_policy), + intval($site_directory), + dbesc(datetime_convert()), + dbesc($directory_url), + intval($register_policy), + dbesc($sellpage) + ); + if(! $r) { + logger('import_site: record create failed. ' . print_r($arr,true)); + } + } + + return $update; + +} + + + +/** + * Send a zot packet to all hubs where this channel is duplicated, refreshing + * such things as personal settings, channel permissions, address book updates, etc. + */ + +function build_sync_packet($uid = 0, $packet = null) { + + $a = get_app(); + + logger('build_sync_packet'); + + if(! $uid) + $uid = local_user(); + + if(! $uid) + return; + + $r = q("select * from channel where channel_id = %d limit 1", + intval($uid) + ); + if(! $r) + return; + + $channel = $r[0]; + + $h = q("select * from hubloc where hubloc_hash = '%s'", + dbesc($channel['channel_hash']) + ); + + if(! $h) + return; + + $synchubs = array(); + + foreach($h as $x) { + if($x['hubloc_host'] == $a->get_hostname()) + continue; + $synchubs[] = $x; + } + + if(! $synchubs) + return; + + $r = q("select xchan_guid, xchan_guid_sig from xchan where xchan_hash = '%s' limit 1", + dbesc($channel['channel_hash']) + ); + if(! $r) + return; + + $env_recips = array(); + $env_recips[] = array('guid' => $r[0]['xchan_guid'],'guid_sig' => $r[0]['xchan_guid_sig']); + + $info = (($packet) ? $packet : array()); + $info['type'] = 'channel_sync'; + + if(array_key_exists($uid,$a->config) && array_key_exists('transient',$a->config[$uid])) { + $settings = $a->config[$uid]['transient']; + if($settings) { + $info['config'] = $settings; + } + } + + if($channel) { + $info['channel'] = array(); + foreach($channel as $k => $v) { + + // filter out any joined tables like xchan + + if(strpos($k,'channel_') !== 0) + continue; + + // don't pass these elements, they should not be synchronised + + $disallowed = array('channel_id','channel_account_id','channel_primary','channel_prvkey','channel_address'); + + if(in_array($k,$disallowed)) + continue; + + $info['channel'][$k] = $v; + } + } + + $interval = ((get_config('system','delivery_interval') !== false) + ? intval(get_config('system','delivery_interval')) : 2 ); + + + logger('build_sync_packet: packet: ' . print_r($info,true), LOGGER_DATA); + + foreach($synchubs as $hub) { + $hash = random_string(); + $n = zot_build_packet($channel,'notify',$env_recips,$hub['hubloc_sitekey'],$hash); + q("insert into outq ( outq_hash, outq_account, outq_channel, outq_driver, outq_posturl, outq_async, outq_created, outq_updated, outq_notify, outq_msg ) values ( '%s', %d, %d, '%s', '%s', %d, '%s', '%s', '%s', '%s' )", + dbesc($hash), + intval($channel['channel_account']), + intval($channel['channel_id']), + dbesc('zot'), + dbesc($hub['hubloc_callback']), + intval(1), + dbesc(datetime_convert()), + dbesc(datetime_convert()), + dbesc($n), + dbesc(json_encode($info)) + ); + + proc_run('php','include/deliver.php',$hash); + if($interval) + @time_sleep_until(microtime(true) + (float) $interval); + } + + +} + +function process_channel_sync_delivery($sender,$arr,$deliveries) { + +// FIXME - this will sync red structures (channel, pconfig and abook). Eventually we need to make this application agnostic. +// TODO: missing group membership changes + + $result = array(); + + foreach($deliveries as $d) { + $r = q("select * from channel where channel_hash = '%s' limit 1", + dbesc($d['hash']) + ); + + if(! $r) { + $result[] = array($d['hash'],'not found'); + continue; + } + + $channel = $r[0]; + + if($channel['channel_hash'] != $sender['hash']) { + logger('process_channel_sync_delivery: possible forgery. Sender ' . $sender['hash'] . ' is not ' . $channel['channel_hash']); + $result[] = array($d['hash'],'channel mismatch',$channel['channel_name'],''); + continue; + } + + if(array_key_exists('config',$arr) && is_array($arr['config']) && count($arr['config'])) { + foreach($arr['config'] as $cat => $k) { + foreach($arr['config'][$cat] as $k => $v) + set_pconfig($channel['channel_id'],$cat,$k,$v); + } + } + + if(array_key_exists('channel',$arr) && is_array($arr['channel']) && count($arr['channel'])) { + $disallowed = array('channel_id','channel_account_id','channel_primary','channel_prvkey', 'channel_address', 'channel_notifyflags'); + + $clean = array(); + foreach($arr['channel'] as $k => $v) { + if(in_array($k,$disallowed)) + continue; + $clean[$k] = $v; + } + if(count($clean)) { + foreach($clean as $k => $v) { + $r = dbq("UPDATE channel set " . dbesc($k) . " = '" . dbesc($v) + . "' where channel_id = " . intval($channel['channel_id']) . " limit 1"); + } + } + } + + + if(array_key_exists('abook',$arr) && is_array($arr['abook']) && count($arr['abook'])) { + + $disallowed = array('abook_id','abook_account','abook_channel'); + + $clean = array(); + foreach($arr['abook'] as $abook) { + + // Perform discovery if the referenced xchan hasn't ever been seen on this hub. + // This relies on the undocumented behaviour that red sites send xchan info with the abook + + if($abook['abook_xchan'] && $abook['xchan_address']) { + $h = zot_get_hublocs($abook['abook_xchan']); + if(! $h) { + $f = zot_finger($abook['xchan_address'],$channel); + if(! $f['success']) { + logger('process_channel_sync_delivery: abook not probe-able' . $abook['xchan_address']); + continue; + } + $j = json_decode($f['body'],true); + if(! ($j['success'] && $j['guid'])) { + logger('process_channel_sync_delivery: probe failed.'); + continue; + } + + $x = import_xchan($j); + + if(! $x['success']) { + logger('process_channel_sync_delivery: import failed.'); + continue; + } + } + } + + foreach($abook as $k => $v) { + if(in_array($k,$disallowed) || (strpos($k,'abook') !== 0)) + continue; + $clean[$k] = $v; + } + + if(! array_key_exists('abook_xchan',$clean)) + continue; + + $r = q("select * from abook where abook_xchan = '%s' and abook_channel = %d limit 1", + dbesc($clean['abook_xchan']), + intval($channel['channel_id']) + ); + + // make sure we have an abook entry for this xchan on this system + + if(! $r) { + q("insert into abook ( abook_xchan, abook_channel ) values ('%s', %d ) ", + dbesc($clean['abook_xchan']), + intval($channel['channel_id']) + ); + } + + if(count($clean)) { + foreach($clean as $k => $v) { + $r = dbq("UPDATE abook set " . dbesc($k) . " = '" . dbesc($v) + . "' where abook_xchan = '" . dbesc($clean['abook_xchan']) . "' and abook_channel = " . intval($channel['channel_id']) + . " limit 1"); + } + } + } + } + + $result[] = array($d['hash'],'channel sync updated',$channel['channel_name'],''); + + + } + return $result; +} + +// We probably should make rpost discoverable. + +function get_rpost_path($observer) { + if(! $observer) + return ''; + $parsed = parse_url($observer['xchan_url']); + return $parsed['scheme'] . '://' . $parsed['host'] . (($parsed['port']) ? ':' . $parsed['port'] : '') . '/rpost?f='; + +} + +function import_author_zot($x) { + $hash = base64url_encode(hash('whirlpool',$x['guid'] . $x['guid_sig'], true)); + $r = q("select hubloc_url from hubloc where hubloc_guid = '%s' and hubloc_guid_sig = '%s' and (hubloc_flags & %d) limit 1", + dbesc($x['guid']), + dbesc($x['guid_sig']), + intval(HUBLOC_FLAGS_PRIMARY) + ); + + if($r) { + logger('import_author_zot: in cache', LOGGER_DEBUG); + return $hash; + } + + logger('import_author_zot: entry not in cache - probing: ' . print_r($x,true), LOGGER_DEBUG); + + $them = array('hubloc_url' => $x['url'],'xchan_guid' => $x['guid'], 'xchan_guid_sig' => $x['guid_sig']); + if(zot_refresh($them)) + return $hash; + return false; +} + |