friendica_2021-01/mod/subthread.php

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<?php
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/**
* @file mod/subthread.php
*/
use Friendica\App;
use Friendica\Core\Addon;
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use Friendica\Core\L10n;
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use Friendica\Core\System;
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use Friendica\Database\DBM;
use Friendica\Model\Item;
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require_once 'include/security.php';
require_once 'include/items.php';
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function subthread_content(App $a) {
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if (!local_user() && !remote_user()) {
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return;
}
$activity = ACTIVITY_FOLLOW;
$item_id = (($a->argc > 1) ? notags(trim($a->argv[1])) : 0);
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$condition = ["`parent` = ? OR `parent-uri` = ? AND `parent` = `id`", $item_id, $item_id];
$item = Item::selectFirst(local_user(), [], $condition);
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if (empty($item_id) || !DBM::is_result($item)) {
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logger('subthread: no item ' . $item_id);
return;
}
$owner_uid = $item['uid'];
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if (!can_write_wall($owner_uid)) {
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return;
}
$remote_owner = null;
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if (!$item['wall']) {
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// The top level post may have been written by somebody on another system
$r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
intval($item['contact-id']),
intval($item['uid'])
);
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if (!DBM::is_result($r)) {
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return;
}
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if (!$r[0]['self']) {
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$remote_owner = $r[0];
}
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}
$owner = null;
// this represents the post owner on this system.
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$r = q("SELECT `contact`.*, `user`.`nickname` FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
WHERE `contact`.`self` = 1 AND `contact`.`uid` = %d LIMIT 1",
intval($owner_uid)
);
if (DBM::is_result($r)) {
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$owner = $r[0];
}
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if (!$owner) {
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logger('like: no owner');
return;
}
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if (!$remote_owner) {
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$remote_owner = $owner;
}
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$contact = null;
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// This represents the person posting
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if (local_user() && (local_user() == $owner_uid)) {
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$contact = $owner;
} else {
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$r = q("SELECT * FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
intval($_SESSION['visitor_id']),
intval($owner_uid)
);
if (DBM::is_result($r)) {
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$contact = $r[0];
}
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}
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if (!$contact) {
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return;
}
$uri = item_new_uri($a->get_hostname(),$owner_uid);
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$post_type = (($item['resource-id']) ? L10n::t('photo') : L10n::t('status'));
$objtype = (($item['resource-id']) ? ACTIVITY_OBJ_IMAGE : ACTIVITY_OBJ_NOTE );
$link = xmlify('<link rel="alternate" type="text/html" href="' . System::baseUrl() . '/display/' . $owner['nickname'] . '/' . $item['id'] . '" />' . "\n") ;
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$body = $item['body'];
$obj = <<< EOT
<object>
<type>$objtype</type>
<local>1</local>
<id>{$item['uri']}</id>
<link>$link</link>
<title></title>
<content>$body</content>
</object>
EOT;
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$bodyverb = L10n::t('%1$s is following %2$s\'s %3$s');
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if (!isset($bodyverb)) {
return;
}
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$arr = [];
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$arr['guid'] = get_guid(32);
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$arr['uri'] = $uri;
$arr['uid'] = $owner_uid;
$arr['contact-id'] = $contact['id'];
$arr['type'] = 'activity';
$arr['wall'] = $item['wall'];
$arr['origin'] = 1;
$arr['gravity'] = GRAVITY_LIKE;
$arr['parent'] = $item['id'];
$arr['parent-uri'] = $item['uri'];
$arr['thr-parent'] = $item['uri'];
$arr['owner-name'] = $remote_owner['name'];
$arr['owner-link'] = $remote_owner['url'];
$arr['owner-avatar'] = $remote_owner['thumb'];
$arr['author-name'] = $contact['name'];
$arr['author-link'] = $contact['url'];
$arr['author-avatar'] = $contact['thumb'];
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$ulink = '[url=' . $contact['url'] . ']' . $contact['name'] . '[/url]';
$alink = '[url=' . $item['author-link'] . ']' . $item['author-name'] . '[/url]';
$plink = '[url=' . System::baseUrl() . '/display/' . $owner['nickname'] . '/' . $item['id'] . ']' . $post_type . '[/url]';
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$arr['body'] = sprintf( $bodyverb, $ulink, $alink, $plink );
$arr['verb'] = $activity;
$arr['object-type'] = $objtype;
$arr['object'] = $obj;
$arr['allow_cid'] = $item['allow_cid'];
$arr['allow_gid'] = $item['allow_gid'];
$arr['deny_cid'] = $item['deny_cid'];
$arr['deny_gid'] = $item['deny_gid'];
$arr['visible'] = 1;
$arr['unseen'] = 1;
$post_id = Item::insert($arr);
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if (!$item['visible']) {
Item::update(['visible' => true], ['id' => $item['id']]);
}
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$arr['id'] = $post_id;
Addon::callHooks('post_local_end', $arr);
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killme();
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}