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friendica/src/Worker/OnePoll.php

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<?php
/**
* @file src/Worker/OnePoll.php
*/
namespace Friendica\Worker;
use Friendica\BaseObject;
use Friendica\Content\Text\BBCode;
use Friendica\Core\Config;
use Friendica\Core\PConfig;
use Friendica\Core\Protocol;
use Friendica\Database\DBA;
use Friendica\Model\Contact;
use Friendica\Model\Item;
use Friendica\Protocol\Email;
use Friendica\Protocol\ActivityPub;
use Friendica\Protocol\PortableContact;
use Friendica\Util\DateTimeFormat;
use Friendica\Util\Network;
use Friendica\Util\XML;
require_once 'include/dba.php';
class OnePoll
{
public static function execute($contact_id = 0, $command = '')
{
$a = BaseObject::getApp();
require_once 'include/items.php';
logger('start');
$manual_id = 0;
$generation = 0;
$hub_update = false;
$force = false;
$restart = false;
if ($command == "force") {
$force = true;
}
if (!$contact_id) {
logger('no contact');
return;
}
$d = DateTimeFormat::utcNow();
$contact = DBA::selectFirst('contact', [], ['id' => $contact_id]);
if (!DBA::isResult($contact)) {
logger('Contact not found or cannot be used.');
return;
}
$importer_uid = $contact['uid'];
// Possibly switch the remote contact to AP
if ($contact['network'] === Protocol::OSTATUS) {
ActivityPub\Receiver::switchContact($contact['id'], $importer_uid, $contact['url']);
$contact = DBA::selectFirst('contact', [], ['id' => $contact_id]);
}
// We currently don't do anything with AP here
if ($contact['network'] === Protocol::ACTIVITYPUB) {
return;
}
// load current friends if possible.
if (($contact['poco'] != "") && ($contact['success_update'] > $contact['failure_update'])) {
$r = q("SELECT count(*) AS total FROM glink
WHERE `cid` = %d AND updated > UTC_TIMESTAMP() - INTERVAL 1 DAY",
intval($contact['id'])
);
if (DBA::isResult($r)) {
if (!$r[0]['total']) {
PortableContact::loadWorker($contact['id'], $importer_uid, 0, $contact['poco']);
}
}
}
// Diaspora users, archived users and followers are only checked if they still exist.
if ($contact['archive'] || ($contact["network"] == Protocol::DIASPORA) || ($contact["rel"] == Contact::FOLLOWER)) {
$last_updated = PortableContact::lastUpdated($contact["url"], true);
$updated = DateTimeFormat::utcNow();
if ($last_updated) {
logger('Contact '.$contact['id'].' had last update on '.$last_updated, LOGGER_DEBUG);
// The last public item can be older than the last item we got
if ($last_updated < $contact['last-item']) {
$last_updated = $contact['last-item'];
}
$fields = ['last-item' => DateTimeFormat::utc($last_updated), 'last-update' => $updated, 'success_update' => $updated];
self::updateContact($contact, $fields);
Contact::unmarkForArchival($contact);
} else {
self::updateContact($contact, ['last-update' => $updated, 'failure_update' => $updated]);
Contact::markForArchival($contact);
logger('Contact '.$contact['id'].' is marked for archival', LOGGER_DEBUG);
}
return;
}
$xml = false;
$t = $contact['last-update'];
if ($contact['subhub']) {
$poll_interval = Config::get('system', 'pushpoll_frequency', 3);
$contact['priority'] = intval($poll_interval);
$hub_update = false;
if (DateTimeFormat::utcNow() > DateTimeFormat::utc($t . " + 1 day")) {
$hub_update = true;
}
} else {
$hub_update = false;
}
$last_update = (($contact['last-update'] <= NULL_DATE)
? DateTimeFormat::utc('now - 7 days', DateTimeFormat::ATOM)
: DateTimeFormat::utc($contact['last-update'], DateTimeFormat::ATOM)
);
// Update the contact entry
if (($contact['network'] === Protocol::OSTATUS) || ($contact['network'] === Protocol::DIASPORA) || ($contact['network'] === Protocol::DFRN)) {
if (!PortableContact::reachable($contact['url'])) {
logger("Skipping probably dead contact ".$contact['url']);
// set the last-update so we don't keep polling
DBA::update('contact', ['last-update' => DateTimeFormat::utcNow()], ['id' => $contact['id']]);
return;
}
if (!Contact::updateFromProbe($contact["id"])) {
Contact::markForArchival($contact);
logger('Contact is marked dead');
// set the last-update so we don't keep polling
DBA::update('contact', ['last-update' => DateTimeFormat::utcNow()], ['id' => $contact['id']]);
return;
} else {
Contact::unmarkForArchival($contact);
}
}
if (!in_array($contact['network'], [Protocol::FEED, Protocol::MAIL]) && Config::get('system', 'disable_polling')) {
return;
}
if ($importer_uid == 0) {
logger('Ignore public contacts');
// set the last-update so we don't keep polling
DBA::update('contact', ['last-update' => DateTimeFormat::utcNow()], ['id' => $contact['id']]);
return;
}
$r = q("SELECT `contact`.*, `user`.`page-flags` FROM `contact` INNER JOIN `user` on `contact`.`uid` = `user`.`uid` WHERE `user`.`uid` = %d AND `contact`.`self` = 1 LIMIT 1",
intval($importer_uid)
);
if (!DBA::isResult($r)) {
logger('No self contact for user '.$importer_uid);
// set the last-update so we don't keep polling
DBA::update('contact', ['last-update' => DateTimeFormat::utcNow()], ['id' => $contact['id']]);
return;
}
$importer = $r[0];
$url = '';
logger("poll: ({$contact['network']}-{$contact['id']}) IMPORTER: {$importer['name']}, CONTACT: {$contact['name']}");
if ($contact['network'] === Protocol::DFRN) {
$idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
if (intval($contact['duplex']) && $contact['dfrn-id']) {
$idtosend = '0:' . $orig_id;
}
if (intval($contact['duplex']) && $contact['issued-id']) {
$idtosend = '1:' . $orig_id;
}
// they have permission to write to us. We already filtered this in the contact query.
$perm = 'rw';
// But this may be our first communication, so set the writable flag if it isn't set already.
if (!intval($contact['writable'])) {
$fields = ['writable' => true];
DBA::update('contact', $fields, ['id' => $contact['id']]);
}
$url = $contact['poll'] . '?dfrn_id=' . $idtosend
. '&dfrn_version=' . DFRN_PROTOCOL_VERSION
. '&type=data&last_update=' . $last_update
. '&perm=' . $perm ;
$curlResult = Network::curl($url);
if (!$curlResult->isSuccess() && ($curlResult->getErrorNumber() == CURLE_OPERATION_TIMEDOUT)) {
// set the last-update so we don't keep polling
DBA::update('contact', ['last-update' => DateTimeFormat::utcNow()], ['id' => $contact['id']]);
Contact::markForArchival($contact);
return;
}
$handshake_xml = $curlResult->getBody();
$html_code = $curlResult->getReturnCode();
logger('handshake with url ' . $url . ' returns xml: ' . $handshake_xml, LOGGER_DATA);
if (!strlen($handshake_xml) || ($html_code >= 400) || !$html_code) {
logger("$url appears to be dead - marking for death ");
// dead connection - might be a transient event, or this might
// mean the software was uninstalled or the domain expired.
// Will keep trying for one month.
Contact::markForArchival($contact);
// set the last-update so we don't keep polling
$fields = ['last-update' => DateTimeFormat::utcNow(), 'failure_update' => DateTimeFormat::utcNow()];
self::updateContact($contact, $fields);
return;
}
if (!strstr($handshake_xml, '<')) {
logger('response from ' . $url . ' did not contain XML.');
Contact::markForArchival($contact);
$fields = ['last-update' => DateTimeFormat::utcNow(), 'failure_update' => DateTimeFormat::utcNow()];
self::updateContact($contact, $fields);
return;
}
$res = XML::parseString($handshake_xml);
if (intval($res->status) == 1) {
logger("$url replied status 1 - marking for death ");
// we may not be friends anymore. Will keep trying for one month.
// set the last-update so we don't keep polling
$fields = ['last-update' => DateTimeFormat::utcNow(), 'failure_update' => DateTimeFormat::utcNow()];
self::updateContact($contact, $fields);
Contact::markForArchival($contact);
} elseif ($contact['term-date'] > NULL_DATE) {
logger("$url back from the dead - removing mark for death");
Contact::unmarkForArchival($contact);
}
if ((intval($res->status) != 0) || !strlen($res->challenge) || !strlen($res->dfrn_id)) {
// set the last-update so we don't keep polling
DBA::update('contact', ['last-update' => DateTimeFormat::utcNow()], ['id' => $contact['id']]);
return;
}
if (((float)$res->dfrn_version > 2.21) && ($contact['poco'] == '')) {
$fields = ['poco' => str_replace('/profile/', '/poco/', $contact['url'])];
DBA::update('contact', $fields, ['id' => $contact['id']]);
}
$postvars = [];
$sent_dfrn_id = hex2bin((string) $res->dfrn_id);
$challenge = hex2bin((string) $res->challenge);
$final_dfrn_id = '';
if ($contact['duplex'] && strlen($contact['prvkey'])) {
openssl_private_decrypt($sent_dfrn_id, $final_dfrn_id, $contact['prvkey']);
openssl_private_decrypt($challenge, $postvars['challenge'], $contact['prvkey']);
} else {
openssl_public_decrypt($sent_dfrn_id, $final_dfrn_id, $contact['pubkey']);
openssl_public_decrypt($challenge, $postvars['challenge'], $contact['pubkey']);
}
$final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
if (strpos($final_dfrn_id, ':') == 1) {
$final_dfrn_id = substr($final_dfrn_id, 2);
}
if ($final_dfrn_id != $orig_id) {
// did not decode properly - cannot trust this site
logger('ID did not decode: ' . $contact['id'] . ' orig: ' . $orig_id . ' final: ' . $final_dfrn_id);
// set the last-update so we don't keep polling
DBA::update('contact', ['last-update' => DateTimeFormat::utcNow()], ['id' => $contact['id']]);
Contact::markForArchival($contact);
return;
}
$postvars['dfrn_id'] = $idtosend;
$postvars['dfrn_version'] = DFRN_PROTOCOL_VERSION;
$postvars['perm'] = 'rw';
$xml = Network::post($contact['poll'], $postvars)->getBody();
} elseif (($contact['network'] === Protocol::OSTATUS)
|| ($contact['network'] === Protocol::DIASPORA)
|| ($contact['network'] === Protocol::FEED)) {
// Upgrading DB fields from an older Friendica version
// Will only do this once per notify-enabled OStatus contact
// or if relationship changes
$stat_writeable = ((($contact['notify']) && ($contact['rel'] == Contact::FOLLOWER || $contact['rel'] == Contact::FRIEND)) ? 1 : 0);
// Contacts from OStatus are always writable
if ($contact['network'] === Protocol::OSTATUS) {
$stat_writeable = 1;
}
if ($stat_writeable != $contact['writable']) {
$fields = ['writable' => $stat_writeable];
DBA::update('contact', $fields, ['id' => $contact['id']]);
}
// Are we allowed to import from this person?
if ($contact['rel'] == Contact::FOLLOWER || $contact['blocked']) {
// set the last-update so we don't keep polling
DBA::update('contact', ['last-update' => DateTimeFormat::utcNow()], ['id' => $contact['id']]);
return;
}
$cookiejar = tempnam(get_temppath(), 'cookiejar-onepoll-');
$curlResult = Network::curl($contact['poll'], false, $redirects, ['cookiejar' => $cookiejar]);
unlink($cookiejar);
if ($curlResult->isTimeout()) {
// set the last-update so we don't keep polling
DBA::update('contact', ['last-update' => DateTimeFormat::utcNow()], ['id' => $contact['id']]);
Contact::markForArchival($contact);
return;
}
$xml = $curlResult->getBody();
} elseif ($contact['network'] === Protocol::MAIL) {
logger("Mail: Fetching for ".$contact['addr'], LOGGER_DEBUG);
$mail_disabled = ((function_exists('imap_open') && !Config::get('system', 'imap_disabled')) ? 0 : 1);
if ($mail_disabled) {
// set the last-update so we don't keep polling
DBA::update('contact', ['last-update' => DateTimeFormat::utcNow()], ['id' => $contact['id']]);
Contact::markForArchival($contact);
return;
}
logger("Mail: Enabled", LOGGER_DEBUG);
$mbox = null;
$user = DBA::selectFirst('user', ['prvkey'], ['uid' => $importer_uid]);
$condition = ["`server` != '' AND `uid` = ?", $importer_uid];
$mailconf = DBA::selectFirst('mailacct', [], $condition);
if (DBA::isResult($user) && DBA::isResult($mailconf)) {
$mailbox = Email::constructMailboxName($mailconf);
$password = '';
openssl_private_decrypt(hex2bin($mailconf['pass']), $password, $user['prvkey']);
$mbox = Email::connect($mailbox, $mailconf['user'], $password);
unset($password);
logger("Mail: Connect to " . $mailconf['user']);
if ($mbox) {
$fields = ['last_check' => DateTimeFormat::utcNow()];
DBA::update('mailacct', $fields, ['id' => $mailconf['id']]);
logger("Mail: Connected to " . $mailconf['user']);
} else {
logger("Mail: Connection error ".$mailconf['user']." ".print_r(imap_errors(), true));
}
}
if ($mbox) {
$msgs = Email::poll($mbox, $contact['addr']);
if (count($msgs)) {
logger("Mail: Parsing ".count($msgs)." mails from ".$contact['addr']." for ".$mailconf['user'], LOGGER_DEBUG);
$metas = Email::messageMeta($mbox, implode(',', $msgs));
if (count($metas) != count($msgs)) {
logger("for " . $mailconf['user'] . " there are ". count($msgs) . " messages but received " . count($metas) . " metas", LOGGER_DEBUG);
} else {
$msgs = array_combine($msgs, $metas);
foreach ($msgs as $msg_uid => $meta) {
logger("Mail: Parsing mail ".$msg_uid, LOGGER_DATA);
$datarray = [];
$datarray['verb'] = ACTIVITY_POST;
$datarray['object-type'] = ACTIVITY_OBJ_NOTE;
$datarray['network'] = Protocol::MAIL;
// $meta = Email::messageMeta($mbox, $msg_uid);
$datarray['uri'] = Email::msgid2iri(trim($meta->message_id, '<>'));
// Have we seen it before?
$fields = ['deleted', 'id'];
$condition = ['uid' => $importer_uid, 'uri' => $datarray['uri']];
$item = Item::selectFirst($fields, $condition);
if (DBA::isResult($item)) {
logger("Mail: Seen before ".$msg_uid." for ".$mailconf['user']." UID: ".$importer_uid." URI: ".$datarray['uri'],LOGGER_DEBUG);
// Only delete when mails aren't automatically moved or deleted
if (($mailconf['action'] != 1) && ($mailconf['action'] != 3))
if ($meta->deleted && ! $item['deleted']) {
$fields = ['deleted' => true, 'changed' => DateTimeFormat::utcNow()];
Item::update($fields, ['id' => $item['id']]);
}
switch ($mailconf['action']) {
case 0:
logger("Mail: Seen before ".$msg_uid." for ".$mailconf['user'].". Doing nothing.", LOGGER_DEBUG);
break;
case 1:
logger("Mail: Deleting ".$msg_uid." for ".$mailconf['user']);
imap_delete($mbox, $msg_uid, FT_UID);
break;
case 2:
logger("Mail: Mark as seen ".$msg_uid." for ".$mailconf['user']);
imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
break;
case 3:
logger("Mail: Moving ".$msg_uid." to ".$mailconf['movetofolder']." for ".$mailconf['user']);
imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
if ($mailconf['movetofolder'] != "") {
imap_mail_move($mbox, $msg_uid, $mailconf['movetofolder'], FT_UID);
}
break;
}
continue;
}
// look for a 'references' or an 'in-reply-to' header and try to match with a parent item we have locally.
$raw_refs = ((property_exists($meta, 'references')) ? str_replace("\t", '', $meta->references) : '');
if (!trim($raw_refs)) {
$raw_refs = ((property_exists($meta, 'in_reply_to')) ? str_replace("\t", '', $meta->in_reply_to) : '');
}
$raw_refs = trim($raw_refs); // Don't allow a blank reference in $refs_arr
if ($raw_refs) {
$refs_arr = explode(' ', $raw_refs);
if (count($refs_arr)) {
for ($x = 0; $x < count($refs_arr); $x ++) {
$refs_arr[$x] = Email::msgid2iri(str_replace(['<', '>', ' '],['', '', ''], $refs_arr[$x]));
}
}
$condition = ['uri' => $refs_arr, 'uid' => $importer_uid];
$parent = Item::selectFirst(['parent-uri'], $condition);
if (DBA::isResult($parent)) {
$datarray['parent-uri'] = $parent['parent-uri']; // Set the parent as the top-level item
}
}
// Decoding the header
$subject = imap_mime_header_decode($meta->subject);
$datarray['title'] = "";
foreach ($subject as $subpart) {
if ($subpart->charset != "default") {
$datarray['title'] .= iconv($subpart->charset, 'UTF-8//IGNORE', $subpart->text);
} else {
$datarray['title'] .= $subpart->text;
}
}
$datarray['title'] = notags(trim($datarray['title']));
//$datarray['title'] = notags(trim($meta->subject));
$datarray['created'] = DateTimeFormat::utc($meta->date);
// Is it a reply?
$reply = ((substr(strtolower($datarray['title']), 0, 3) == "re:") ||
(substr(strtolower($datarray['title']), 0, 3) == "re-") ||
($raw_refs != ""));
// Remove Reply-signs in the subject
$datarray['title'] = self::RemoveReply($datarray['title']);
// If it seems to be a reply but a header couldn't be found take the last message with matching subject
if (empty($datarray['parent-uri']) && $reply) {
$condition = ['title' => $datarray['title'], 'uid' => importer_uid, 'network' => Protocol::MAIL];
$params = ['order' => ['created' => true]];
$parent = Item::selectFirst(['parent-uri'], $condition, $params);
if (DBA::isResult($parent)) {
$datarray['parent-uri'] = $parent['parent-uri'];
}
}
if (empty($datarray['parent-uri'])) {
$datarray['parent-uri'] = $datarray['uri'];
}
$r = Email::getMessage($mbox, $msg_uid, $reply);
if (!$r) {
logger("Mail: can't fetch msg ".$msg_uid." for ".$mailconf['user']);
continue;
}
$datarray['body'] = escape_tags($r['body']);
$datarray['body'] = BBCode::limitBodySize($datarray['body']);
logger("Mail: Importing ".$msg_uid." for ".$mailconf['user']);
/// @TODO Adding a gravatar for the original author would be cool
$from = imap_mime_header_decode($meta->from);
$fromdecoded = "";
foreach ($from as $frompart) {
if ($frompart->charset != "default") {
$fromdecoded .= iconv($frompart->charset, 'UTF-8//IGNORE', $frompart->text);
} else {
$fromdecoded .= $frompart->text;
}
}
$fromarr = imap_rfc822_parse_adrlist($fromdecoded, $a->getHostName());
$frommail = $fromarr[0]->mailbox."@".$fromarr[0]->host;
if (isset($fromarr[0]->personal)) {
$fromname = $fromarr[0]->personal;
} else {
$fromname = $frommail;
}
$datarray['author-name'] = $fromname;
$datarray['author-link'] = "mailto:".$frommail;
$datarray['author-avatar'] = $contact['photo'];
$datarray['owner-name'] = $contact['name'];
$datarray['owner-link'] = "mailto:".$contact['addr'];
$datarray['owner-avatar'] = $contact['photo'];
$datarray['uid'] = $importer_uid;
$datarray['contact-id'] = $contact['id'];
if ($datarray['parent-uri'] === $datarray['uri']) {
$datarray['private'] = 1;
}
if (($contact['network'] === Protocol::MAIL) && !PConfig::get($importer_uid, 'system', 'allow_public_email_replies')) {
$datarray['private'] = 1;
$datarray['allow_cid'] = '<' . $contact['id'] . '>';
}
$stored_item = Item::insert($datarray);
switch ($mailconf['action']) {
case 0:
logger("Mail: Seen before ".$msg_uid." for ".$mailconf['user'].". Doing nothing.", LOGGER_DEBUG);
break;
case 1:
logger("Mail: Deleting ".$msg_uid." for ".$mailconf['user']);
imap_delete($mbox, $msg_uid, FT_UID);
break;
case 2:
logger("Mail: Mark as seen ".$msg_uid." for ".$mailconf['user']);
imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
break;
case 3:
logger("Mail: Moving ".$msg_uid." to ".$mailconf['movetofolder']." for ".$mailconf['user']);
imap_setflag_full($mbox, $msg_uid, "\\Seen", ST_UID);
if ($mailconf['movetofolder'] != "") {
imap_mail_move($mbox, $msg_uid, $mailconf['movetofolder'], FT_UID);
}
break;
}
}
}
} else {
logger("Mail: no mails for ".$mailconf['user']);
}
logger("Mail: closing connection for ".$mailconf['user']);
imap_close($mbox);
}
}
if ($xml) {
logger('received xml : ' . $xml, LOGGER_DATA);
if (!strstr($xml, '<')) {
logger('post_handshake: response from ' . $url . ' did not contain XML.');
$fields = ['last-update' => DateTimeFormat::utcNow(), 'failure_update' => DateTimeFormat::utcNow()];
self::updateContact($contact, $fields);
Contact::markForArchival($contact);
return;
}
logger("Consume feed of contact ".$contact['id']);
consume_feed($xml, $importer, $contact, $hub);
// do it a second time for DFRN so that any children find their parents.
if ($contact['network'] === Protocol::DFRN) {
consume_feed($xml, $importer, $contact, $hub);
}
$hubmode = 'subscribe';
if ($contact['network'] === Protocol::DFRN || $contact['blocked']) {
$hubmode = 'unsubscribe';
}
if (($contact['network'] === Protocol::OSTATUS || $contact['network'] == Protocol::FEED) && (! $contact['hub-verify'])) {
$hub_update = true;
}
if ($force) {
$hub_update = true;
}
logger("Contact ".$contact['id']." returned hub: ".$hub." Network: ".$contact['network']." Relation: ".$contact['rel']." Update: ".$hub_update);
if (strlen($hub) && $hub_update && (($contact['rel'] != Contact::FOLLOWER) || $contact['network'] == Protocol::FEED)) {
logger('hub ' . $hubmode . ' : ' . $hub . ' contact name : ' . $contact['name'] . ' local user : ' . $importer['name']);
$hubs = explode(',', $hub);
if (count($hubs)) {
foreach ($hubs as $h) {
$h = trim($h);
if (!strlen($h)) {
continue;
}
subscribe_to_hub($h, $importer, $contact, $hubmode);
}
}
}
$updated = DateTimeFormat::utcNow();
self::updateContact($contact, ['last-update' => $updated, 'success_update' => $updated]);
DBA::update('gcontact', ['last_contact' => $updated], ['nurl' => $contact['nurl']]);
Contact::unmarkForArchival($contact);
} elseif (in_array($contact["network"], [Protocol::DFRN, Protocol::DIASPORA, Protocol::OSTATUS, Protocol::FEED])) {
$updated = DateTimeFormat::utcNow();
self::updateContact($contact, ['last-update' => $updated, 'failure_update' => $updated]);
DBA::update('gcontact', ['last_failure' => $updated], ['nurl' => $contact['nurl']]);
Contact::markForArchival($contact);
} else {
$updated = DateTimeFormat::utcNow();
DBA::update('contact', ['last-update' => $updated], ['id' => $contact['id']]);
}
return;
}
private static function RemoveReply($subject)
{
while (in_array(strtolower(substr($subject, 0, 3)), ["re:", "aw:"])) {
$subject = trim(substr($subject, 4));
}
return $subject;
}
/**
* @brief Updates a personal contact entry and the public contact entry
*
* @param array $contact The personal contact entry
* @param array $fields The fields that are updated
*/
private static function updateContact(array $contact, array $fields)
{
DBA::update('contact', $fields, ['id' => $contact['id']]);
DBA::update('contact', $fields, ['uid' => 0, 'nurl' => $contact['nurl']]);
}
}
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