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Fix issue 7449: Image permissions are now set like before

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This commit is contained in:
Michael 2019-08-02 16:38:50 +00:00
parent e9f0c4dbfb
commit d95ef96cca
2 changed files with 59 additions and 35 deletions
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37
mod/item.php
View file

@ -469,43 +469,10 @@ function item_post(App $a) {
$match = null;
/// @todo these lines should be moved to Model/Photo
if (!$preview && preg_match_all("/\[img([\=0-9x]*?)\](.*?)\[\/img\]/",$body,$match)) {
$images = $match[2];
if (count($images)) {
$objecttype = ACTIVITY_OBJ_IMAGE;
foreach ($images as $image) {
if (!stristr($image, System::baseUrl() . '/photo/')) {
continue;
}
$image_uri = substr($image,strrpos($image,'/') + 1);
$image_uri = substr($image_uri,0, strpos($image_uri,'-'));
if (!strlen($image_uri)) {
continue;
}
// Ensure to only modify photos that you own
$srch = '<' . intval($original_contact_id) . '>';
$condition = [
'allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
'resource-id' => $image_uri, 'uid' => $profile_uid
];
if (!Photo::exists($condition)) {
continue;
}
$fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
$condition = ['resource-id' => $image_uri, 'uid' => $profile_uid];
Photo::update($fields, $condition);
}
}
if (!$preview && Photo::setPermissionFromBody($body, $profile_uid, $original_contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)) {
$objecttype = ACTIVITY_OBJ_IMAGE;
}
/*
* Next link in any attachment references we find in the post.
*/

57
src/Model/Photo.php
View file

@ -10,6 +10,7 @@ use Friendica\BaseObject;
use Friendica\Core\Cache;
use Friendica\Core\Config;
use Friendica\Core\L10n;
use Friendica\Core\Logger;
use Friendica\Core\StorageManager;
use Friendica\Core\System;
use Friendica\Database\DBA;
@ -607,4 +608,60 @@ class Photo extends BaseObject
{
return System::createGUID(32, false);
}
/**
* Generate a unique photo ID.
*
* @todo This function currently does have some flaws:
* - Sharing a post with a form will create a photo that only the forum can see.
* - Sharing a photo non public that been share non public before doesn't alter the permissions.
*
* @return string
* @throws \Exception
*/
public static function setPermissionFromBody($body, $uid, $original_contact_id, $str_contact_allow, $str_group_allow, $str_contact_deny, $str_group_deny)
{
// Simplify image codes
$img_body = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $body);
$img_body = preg_replace("/\[img\=(.*?)\](.*?)\[\/img\]/ism", '[img]$1[/img]', $img_body);
// Search for images
if (!preg_match_all("/\[img\](.*?)\[\/img\]/", $img_body, $match)) {
return false;
}
$images = $match[1];
if (empty($images)) {
return false;
}
foreach ($images as $image) {
if (!stristr($image, System::baseUrl() . '/photo/')) {
continue;
}
$image_uri = substr($image,strrpos($image,'/') + 1);
$image_uri = substr($image_uri,0, strpos($image_uri,'-'));
if (!strlen($image_uri)) {
continue;
}
// Ensure to only modify photos that you own
$srch = '<' . intval($original_contact_id) . '>';
$condition = [
'allow_cid' => $srch, 'allow_gid' => '', 'deny_cid' => '', 'deny_gid' => '',
'resource-id' => $image_uri, 'uid' => $uid
];
if (!Photo::exists($condition)) {
continue;
}
$fields = ['allow_cid' => $str_contact_allow, 'allow_gid' => $str_group_allow,
'deny_cid' => $str_contact_deny, 'deny_gid' => $str_group_deny];
$condition = ['resource-id' => $image_uri, 'uid' => $uid];
Logger::info('Set permissions', ['condition' => $condition, 'permissions' => $fields]);
Photo::update($fields, $condition);
}
return true;
}
}