friendica/mod/item.php

273 lines
7.1 KiB
PHP
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<?php
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function sanitise_acl(&$item) {
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$item = '<' . intval(notags(trim($item))) . '>';
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}
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function item_post(&$a) {
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if((! local_user()) && (! remote_user()))
return;
require_once('include/security.php');
$uid = $_SESSION['uid'];
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$parent = ((x($_POST,'parent')) ? intval($_POST['parent']) : 0);
$parent_item = null;
if($parent) {
$r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
intval($parent)
);
if(! count($r)) {
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notice( t('Unable to locate original post.') . EOL);
goaway($a->get_baseurl() . "/" . $_POST['return'] );
}
$parent_item = $r[0];
}
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$profile_uid = ((x($_POST,'profile_uid')) ? intval($_POST['profile_uid']) : 0);
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if(! can_write_wall($a,$profile_uid)) {
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notice("Permission denied." . EOL) ;
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return;
}
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$str_group_allow = '';
$group_allow = $_POST['group_allow'];
if(is_array($group_allow)) {
array_walk($group_allow,'sanitise_acl');
$str_group_allow = implode('',$group_allow);
}
$str_contact_allow = '';
$contact_allow = $_POST['contact_allow'];
if(is_array($contact_allow)) {
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array_walk($contact_allow,'sanitise_acl');
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$str_contact_allow = implode('',$contact_allow);
}
$str_group_deny = '';
$group_deny = $_POST['group_deny'];
if(is_array($group_deny)) {
array_walk($group_deny,'sanitise_acl');
$str_group_deny = implode('',$group_deny);
}
$str_contact_deny = '';
$contact_deny = $_POST['contact_deny'];
if(is_array($contact_deny)) {
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array_walk($contact_deny,'sanitise_acl');
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$str_contact_deny = implode('',$contact_deny);
}
$title = notags(trim($_POST['title']));
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$body = escape_tags(trim($_POST['body']));
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if(! strlen($body)) {
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notice( t('Empty post discarded.') . EOL );
goaway($a->get_baseurl() . "/" . $_POST['return'] );
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}
// get contact info for poster
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if((x($_SESSION,'visitor_id')) && (intval($_SESSION['visitor_id']))) {
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$contact_id = $_SESSION['visitor_id'];
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}
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else {
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$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
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intval($_SESSION['uid']));
if(count($r))
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$contact_id = $r[0]['id'];
}
// get contact info for owner
$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
intval($profile_uid)
);
if(count($r))
$contact_record = $r[0];
$post_type == notags(trim($_POST['type']));
if($post_type == 'net-comment') {
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if($parent_item !== null) {
if($parent_item['type'] == 'remote')
$post_type = 'remote-comment';
else
$post_type = 'wall-comment';
}
}
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$notify_type = (($parent) ? 'comment-new' : 'wall-new' );
if(($_POST['type'] == 'wall') || ($_POST['type'] == 'wall-comment') || ($_POST['type'] == 'net-comment')) {
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do {
$dups = false;
$hash = random_string();
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$uri = "urn:X-dfrn:" . $a->get_hostname() . ':' . $profile_uid . ':' . $hash;
$r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
dbesc($uri));
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if(count($r))
$dups = true;
} while($dups == true);
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$r = q("INSERT INTO `item` (`uid`,`type`,`contact-id`,`owner-name`,`owner-link`,`owner-avatar`, `created`,
`edited`, `uri`, `title`, `body`, `allow_cid`, `allow_gid`, `deny_cid`, `deny_gid`)
VALUES( %d, '%s', %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s' )",
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intval($profile_uid),
dbesc($_POST['type']),
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intval($contact_id),
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dbesc($contact_record['name']),
dbesc($contact_record['url']),
dbesc($contact_record['thumb']),
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datetime_convert(),
datetime_convert(),
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dbesc($uri),
dbesc($title),
dbesc($body),
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dbesc($str_contact_allow),
dbesc($str_group_allow),
dbesc($str_contact_deny),
dbesc($str_group_deny)
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);
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$r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
dbesc($uri));
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if(count($r)) {
$post_id = $r[0]['id'];
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if($parent) {
// This item is the last leaf and gets the comment box, clear any ancestors
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$r = q("UPDATE `item` SET `last-child` = 0 WHERE `parent` = %d ",
intval($parent)
);
// Inherit ACL's from the parent item.
// TODO merge with subsequent UPDATE operation and save a db write
$r = q("UPDATE `item` SET `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s'
WHERE `id` = %d LIMIT 1",
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dbesc($parent_item['allow_cid']),
dbesc($parent_item['allow_gid']),
dbesc($parent_item['deny_cid']),
dbesc($parent_item['deny_gid']),
intval($post_id)
);
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}
else {
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$parent = $post_id;
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}
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$r = q("UPDATE `item` SET `parent` = %d, `parent-uri` = '%s', `last-child` = 1, `visible` = 1
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WHERE `id` = %d LIMIT 1",
intval($parent),
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dbesc(($parent == $post_id) ? $uri : $parent_item['uri']),
intval($post_id)
);
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// photo comments turn the corresponding item visible to the profile wall
if(! $parent_item['visible']) {
$r = q("UPDATE `item` SET `visible = 1 WHERE `id` = %d LIMIT 1",
intval($parent_item['id'])
);
}
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}
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$url = $a->get_baseurl();
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proc_close(proc_open("php include/notifier.php \"$url\" \"$notify_type\" \"$post_id\" > notify.log &",
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array(),$foo));
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}
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goaway($a->get_baseurl() . "/" . $_POST['return'] );
return; // NOTREACHED
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}
function item_content(&$a) {
if((! local_user()) && (! remote_user()))
return;
require_once('include/security.php');
$uid = $_SESSION['uid'];
if(($a->argc == 3) && ($a->argv[1] == 'drop') && intval($a->argv[2])) {
// locate item to be deleted
$r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
intval($a->argv[2])
);
if(! count($r)) {
notice("Item not found." . EOL);
goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
}
$item = $r[0];
// check if logged in user is either the author or owner of this item
if(($_SESSION['visitor_id'] == $item['contact-id']) || ($_SESSION['uid'] == $item['uid'])) {
// delete the item
$r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s' WHERE `id` = %d LIMIT 1",
dbesc(datetime_convert()),
intval($item['id'])
);
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// If item is a link to a photo resource, nuke all the associated photos
// (visitors will not have photo resources)
// This only applies to photos uploaded from the photos page. Photos inserted into a post do not
// generate a resource-id and therefore aren't intimately linked to the item.
if(strlen($item['resource-id'])) {
$q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `uid` = %d ",
dbesc($item['resource-id']),
intval($item['uid'])
);
// ignore the result
}
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// If it's the parent of a comment thread, kill all the kids
if($item['uri'] == $item['parent-uri']) {
$r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s'
WHERE `parent-uri` = '%s' AND `uid` = %d ",
dbesc(datetime_convert()),
dbesc($item['parent-uri']),
intval($item['uid'])
);
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// ignore the result
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}
$url = $a->get_baseurl();
$drop_id = intval($item['id']);
// send the notification upstream/downstream as the case may be
proc_close(proc_open("php include/notifier.php \"$url\" \"drop\" \"$drop_id\" > notify.log &",
array(),$foo));
goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
return; //NOTREACHED
}
else {
notice("Permission denied." . EOL);
goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
return; //NOTREACHED
}
}
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}