friendica_2021-01/src/Worker/Delivery.php

521 lines
15 KiB
PHP

<?php
/**
* @file src/Worker/Delivery.php
*/
namespace Friendica\Worker;
use Friendica\Core\Config;
use Friendica\Core\L10n;
use Friendica\Core\System;
use Friendica\Database\DBM;
use Friendica\Model\Contact;
use Friendica\Model\Item;
use Friendica\Model\Queue;
use Friendica\Model\User;
use Friendica\Protocol\DFRN;
use Friendica\Protocol\Diaspora;
use Friendica\Protocol\Email;
use dba;
require_once 'include/html2plain.php';
require_once 'include/items.php';
require_once 'include/bbcode.php';
/// @todo This is some ugly code that needs to be split into several methods
class Delivery {
public static function execute($cmd, $item_id, $contact_id) {
global $a;
logger('delivery: invoked: '.$cmd.': '.$item_id.' to '.$contact_id, LOGGER_DEBUG);
$mail = false;
$fsuggest = false;
$relocate = false;
$top_level = false;
$recipients = [];
$url_recipients = [];
$followup = false;
$normal_mode = true;
$recipients[] = $contact_id;
if ($cmd === 'mail') {
$normal_mode = false;
$mail = true;
$message = q("SELECT * FROM `mail` WHERE `id` = %d LIMIT 1",
intval($item_id)
);
if (!count($message)) {
return;
}
$uid = $message[0]['uid'];
$recipients[] = $message[0]['contact-id'];
$item = $message[0];
} elseif ($cmd === 'suggest') {
$normal_mode = false;
$fsuggest = true;
$suggest = q("SELECT * FROM `fsuggest` WHERE `id` = %d LIMIT 1",
intval($item_id)
);
if (!count($suggest)) {
return;
}
$uid = $suggest[0]['uid'];
$recipients[] = $suggest[0]['cid'];
$item = $suggest[0];
} elseif ($cmd === 'relocate') {
$normal_mode = false;
$relocate = true;
$uid = $item_id;
} else {
// find ancestors
$target_item = dba::fetch_first("SELECT `item`.*, `contact`.`uid` AS `cuid` FROM `item`
INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
WHERE `item`.`id` = ? AND `visible` AND NOT `moderated`", $item_id);
if (!DBM::is_result($target_item) || !intval($target_item['parent'])) {
return;
}
$parent_id = intval($target_item['parent']);
$uid = $target_item['cuid'];
$updated = $target_item['edited'];
$items = q("SELECT `item`.*, `sign`.`signed_text`,`sign`.`signature`,`sign`.`signer`
FROM `item` LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id` WHERE `parent` = %d AND visible = 1 AND moderated = 0 ORDER BY `id` ASC",
intval($parent_id)
);
if (!count($items)) {
return;
}
$icontacts = null;
$contacts_arr = [];
foreach ($items as $item) {
if (!in_array($item['contact-id'],$contacts_arr)) {
$contacts_arr[] = intval($item['contact-id']);
}
}
if (count($contacts_arr)) {
$str_contacts = implode(',',$contacts_arr);
$icontacts = q("SELECT * FROM `contact`
WHERE `id` IN ( $str_contacts ) "
);
}
if ( !($icontacts && count($icontacts))) {
return;
}
// avoid race condition with deleting entries
if ($items[0]['deleted']) {
foreach ($items as $item) {
$item['deleted'] = 1;
}
}
// When commenting too fast after delivery, a post wasn't recognized as top level post.
// The count then showed more than one entry. The additional check should help.
// The check for the "count" should be superfluous, but I'm not totally sure by now, so we keep it.
if ((($items[0]['id'] == $item_id) || (count($items) == 1)) && ($items[0]['uri'] === $items[0]['parent-uri'])) {
logger('delivery: top level post');
$top_level = true;
}
}
$owner = User::getOwnerDataById($uid);
if (!$owner) {
return;
}
// We don't treat Forum posts as "wall-to-wall" to be able to post them via Diaspora
$walltowall = $top_level && ($owner['id'] != $items[0]['contact-id']) & ($owner['account-type'] != ACCOUNT_TYPE_COMMUNITY);
$public_message = true;
if (!$mail && !$fsuggest && !$relocate) {
$parent = $items[0];
// This is IMPORTANT!!!!
// We will only send a "notify owner to relay" or followup message if the referenced post
// originated on our system by virtue of having our hostname somewhere
// in the URI, AND it was a comment (not top_level) AND the parent originated elsewhere.
// if $parent['wall'] == 1 we will already have the parent message in our array
// and we will relay the whole lot.
$localhost = $a->get_hostname();
if (strpos($localhost,':')) {
$localhost = substr($localhost,0,strpos($localhost,':'));
}
/**
*
* Be VERY CAREFUL if you make any changes to the following line. Seemingly innocuous changes
* have been known to cause runaway conditions which affected several servers, along with
* permissions issues.
*
*/
$relay_to_owner = false;
if (!$top_level && ($parent['wall'] == 0) && stristr($target_item['uri'], $localhost)) {
$relay_to_owner = true;
}
if ($relay_to_owner) {
logger('followup '.$target_item["guid"], LOGGER_DEBUG);
// local followup to remote post
$followup = true;
}
if (strlen($parent['allow_cid'])
|| strlen($parent['allow_gid'])
|| strlen($parent['deny_cid'])
|| strlen($parent['deny_gid'])
|| $parent["private"]) {
$public_message = false; // private recipients, not public
}
}
$r = q("SELECT * FROM `contact` WHERE `id` = %d AND `blocked` = 0 AND `pending` = 0",
intval($contact_id)
);
if (DBM::is_result($r)) {
$contact = $r[0];
}
if ($contact['self']) {
return;
}
$deliver_status = 0;
// Transmit via Diaspora if not possible via Friendica
if (($item['uid'] == 0) && ($contact['network'] == NETWORK_DFRN)) {
$contact['network'] = NETWORK_DIASPORA;
}
logger("main delivery by delivery: followup=$followup mail=$mail fsuggest=$fsuggest relocate=$relocate - network ".$contact['network']);
switch ($contact['network']) {
case NETWORK_DFRN:
logger('notifier: '.$target_item["guid"].' dfrndelivery: '.$contact['name']);
if ($mail) {
$item['body'] = Item::fixPrivatePhotos($item['body'],$owner['uid'],null,$message[0]['contact-id']);
$atom = DFRN::mail($item, $owner);
} elseif ($fsuggest) {
$atom = DFRN::fsuggest($item, $owner);
q("DELETE FROM `fsuggest` WHERE `id` = %d LIMIT 1", intval($item['id']));
} elseif ($relocate) {
$atom = DFRN::relocate($owner, $uid);
} elseif ($followup) {
$msgitems = [];
foreach ($items as $item) { // there is only one item
if (!$item['parent']) {
return;
}
if ($item['id'] == $item_id) {
logger('followup: item: '. print_r($item,true), LOGGER_DATA);
$msgitems[] = $item;
}
}
$atom = DFRN::entries($msgitems,$owner);
} else {
$msgitems = [];
foreach ($items as $item) {
if (!$item['parent']) {
return;
}
// private emails may be in included in public conversations. Filter them.
if ($public_message && $item['private']) {
return;
}
$item_contact = self::getItemContact($item,$icontacts);
if (!$item_contact) {
return;
}
if ($normal_mode) {
if ($item_id == $item['id'] || $item['id'] == $item['parent']) {
$item["entry:comment-allow"] = true;
$item["entry:cid"] = (($top_level) ? $contact['id'] : 0);
$msgitems[] = $item;
}
} else {
$item["entry:comment-allow"] = true;
$msgitems[] = $item;
}
}
$atom = DFRN::entries($msgitems,$owner);
}
logger('notifier entry: '.$contact["url"].' '.$target_item["guid"].' entry: '.$atom, LOGGER_DEBUG);
logger('notifier: '.$atom, LOGGER_DATA);
$basepath = implode('/', array_slice(explode('/',$contact['url']),0,3));
// perform local delivery if we are on the same site
if (link_compare($basepath,System::baseUrl())) {
$nickname = basename($contact['url']);
if ($contact['issued-id']) {
$sql_extra = sprintf(" AND `dfrn-id` = '%s' ", dbesc($contact['issued-id']));
} else {
$sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($contact['dfrn-id']));
}
$x = q("SELECT `contact`.*, `contact`.`uid` AS `importer_uid`,
`contact`.`pubkey` AS `cpubkey`,
`contact`.`prvkey` AS `cprvkey`,
`contact`.`thumb` AS `thumb`,
`contact`.`url` as `url`,
`contact`.`name` as `senderName`,
`user`.*
FROM `contact`
INNER JOIN `user` ON `contact`.`uid` = `user`.`uid`
WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0
AND `contact`.`network` = '%s' AND `user`.`nickname` = '%s'
$sql_extra
AND `user`.`account_expired` = 0 AND `user`.`account_removed` = 0 LIMIT 1",
dbesc(NETWORK_DFRN),
dbesc($nickname)
);
if ($x && count($x)) {
$write_flag = ((($x[0]['rel']) && ($x[0]['rel'] != CONTACT_IS_SHARING)) ? true : false);
if ((($owner['page-flags'] == PAGE_COMMUNITY) || $write_flag) && !$x[0]['writable']) {
q("UPDATE `contact` SET `writable` = 1 WHERE `id` = %d",
intval($x[0]['id'])
);
$x[0]['writable'] = 1;
}
$ssl_policy = Config::get('system','ssl_policy');
$x[0] = Contact::updateSslPolicy($x[0], $ssl_policy);
// If we are setup as a soapbox we aren't accepting top level posts from this person
if (($x[0]['page-flags'] == PAGE_SOAPBOX) && $top_level) {
break;
}
logger('mod-delivery: local delivery');
DFRN::import($atom, $x[0]);
break;
}
}
if (!Queue::wasDelayed($contact['id'])) {
$deliver_status = DFRN::deliver($owner, $contact, $atom);
} else {
$deliver_status = (-1);
}
logger('notifier: dfrn_delivery to '.$contact["url"].' with guid '.$target_item["guid"].' returns '.$deliver_status);
if ($deliver_status < 0) {
logger('notifier: delivery failed: queuing message');
Queue::add($contact['id'], NETWORK_DFRN, $atom, false, $target_item['guid']);
// The message could not be delivered. We mark the contact as "dead"
Contact::markForArchival($contact);
} else {
// We successfully delivered a message, the contact is alive
Contact::unmarkForArchival($contact);
}
break;
case NETWORK_OSTATUS:
// Do not send to otatus if we are not configured to send to public networks
if ($owner['prvnets']) {
break;
}
if (Config::get('system','ostatus_disabled') || Config::get('system','dfrn_only')) {
break;
}
// There is currently no code here to distribute anything to OStatus.
// This is done in "notifier.php" (See "url_recipients" and "push_notify")
break;
case NETWORK_MAIL:
if (Config::get('system','dfrn_only')) {
break;
}
// WARNING: does not currently convert to RFC2047 header encodings, etc.
$addr = $contact['addr'];
if (!strlen($addr)) {
break;
}
if ($cmd === 'wall-new' || $cmd === 'comment-new') {
$it = null;
if ($cmd === 'wall-new') {
$it = $items[0];
} else {
$r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
intval($item_id)
);
if (DBM::is_result($r)) {
$it = $r[0];
}
}
if (!$it) {
break;
}
$local_user = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
intval($uid)
);
if (!count($local_user)) {
break;
}
$reply_to = '';
$r1 = q("SELECT * FROM `mailacct` WHERE `uid` = %d LIMIT 1",
intval($uid)
);
if ($r1 && $r1[0]['reply_to']) {
$reply_to = $r1[0]['reply_to'];
}
$subject = (($it['title']) ? Email::encodeHeader($it['title'],'UTF-8') : L10n::t("\x28no subject\x29")) ;
// only expose our real email address to true friends
if (($contact['rel'] == CONTACT_IS_FRIEND) && !$contact['blocked']) {
if ($reply_to) {
$headers = 'From: '.Email::encodeHeader($local_user[0]['username'],'UTF-8').' <'.$reply_to.'>'."\n";
$headers .= 'Sender: '.$local_user[0]['email']."\n";
} else {
$headers = 'From: '.Email::encodeHeader($local_user[0]['username'],'UTF-8').' <'.$local_user[0]['email'].'>'."\n";
}
} else {
$headers = 'From: '. Email::encodeHeader($local_user[0]['username'],'UTF-8') .' <'. L10n::t('noreply') .'@'.$a->get_hostname() .'>'. "\n";
}
//if ($reply_to)
// $headers .= 'Reply-to: '.$reply_to . "\n";
$headers .= 'Message-Id: <'. Email::iri2msgid($it['uri']).'>'. "\n";
//logger("Mail: uri: ".$it['uri']." parent-uri ".$it['parent-uri'], LOGGER_DEBUG);
//logger("Mail: Data: ".print_r($it, true), LOGGER_DEBUG);
//logger("Mail: Data: ".print_r($it, true), LOGGER_DATA);
if ($it['uri'] !== $it['parent-uri']) {
$headers .= "References: <".Email::iri2msgid($it["parent-uri"]).">";
// If Threading is enabled, write down the correct parent
if (($it["thr-parent"] != "") && ($it["thr-parent"] != $it["parent-uri"])) {
$headers .= " <".Email::iri2msgid($it["thr-parent"]).">";
}
$headers .= "\n";
if (!$it['title']) {
$r = q("SELECT `title` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
dbesc($it['parent-uri']),
intval($uid));
if (DBM::is_result($r) && ($r[0]['title'] != '')) {
$subject = $r[0]['title'];
} else {
$r = q("SELECT `title` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d LIMIT 1",
dbesc($it['parent-uri']),
intval($uid));
if (DBM::is_result($r) && ($r[0]['title'] != '')) {
$subject = $r[0]['title'];
}
}
}
if (strncasecmp($subject,'RE:',3)) {
$subject = 'Re: '.$subject;
}
}
Email::send($addr, $subject, $headers, $it);
}
break;
case NETWORK_DIASPORA:
if ($public_message) {
$loc = 'public batch '.$contact['batch'];
} else {
$loc = $contact['name'];
}
logger('delivery: diaspora batch deliver: '.$loc);
if (Config::get('system','dfrn_only') || !Config::get('system','diaspora_enabled')) {
break;
}
if ($mail) {
Diaspora::sendMail($item,$owner,$contact);
break;
}
if (!$normal_mode) {
break;
}
if (!$contact['pubkey'] && !$public_message) {
break;
}
if (($target_item['deleted']) && (($target_item['uri'] === $target_item['parent-uri']) || $followup)) {
// top-level retraction
logger('diaspora retract: '.$loc);
Diaspora::sendRetraction($target_item,$owner,$contact,$public_message);
break;
} elseif ($relocate) {
Diaspora::sendAccountMigration($owner, $contact, $uid);
break;
} elseif ($followup) {
// send comments and likes to owner to relay
logger('diaspora followup: '.$loc);
Diaspora::sendFollowup($target_item,$owner,$contact,$public_message);
break;
} elseif ($target_item['uri'] !== $target_item['parent-uri']) {
// we are the relay - send comments, likes and relayable_retractions to our conversants
logger('diaspora relay: '.$loc);
Diaspora::sendRelay($target_item,$owner,$contact,$public_message);
break;
} elseif ($top_level && !$walltowall) {
// currently no workable solution for sending walltowall
logger('diaspora status: '.$loc);
Diaspora::sendStatus($target_item,$owner,$contact,$public_message);
break;
}
logger('delivery: diaspora unknown mode: '.$contact['name']);
break;
default:
break;
}
return;
}
private static function getItemContact($item, $contacts)
{
if (!count($contacts) || !is_array($item)) {
return false;
}
foreach ($contacts as $contact) {
if ($contact['id'] == $item['contact-id']) {
return $contact;
}
}
return false;
}
}