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finally fix recursive attachments permissions

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git-marijus 2017-08-01 23:20:39 +02:00
parent aa766b53d6
commit 599b395e24
1 changed files with 79 additions and 54 deletions
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133
include/attach.php
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@ -1605,7 +1605,10 @@ function file_activity($channel_id, $object, $allow_cid, $allow_gid, $deny_cid,
$folder_hash = $object['folder'];
$r_perms = recursive_activity_recipients($arr_allow_cid, $arr_allow_gid, $arr_deny_cid, $arr_deny_gid, $folder_hash);
$r_perms = attach_recursive_perms($arr_allow_cid, $arr_allow_gid, $arr_deny_cid, $arr_deny_gid, $folder_hash);
if($r_perms === false) //nobody has recursive perms - nobody must be notified
return;
//split up returned perms
$arr_allow_cid = $r_perms['allow_cid'];
@ -1768,7 +1771,7 @@ function get_file_activity_object($channel_id, $hash, $url) {
}
/**
* @brief Returns array of channels which have recursive permission for a file
* @brief Returns recursive permissions array or false if nobody has recursive permissions
*
* @param array $arr_allow_cid
* @param array $arr_allow_gid
@ -1776,19 +1779,20 @@ function get_file_activity_object($channel_id, $hash, $url) {
* @param array $arr_deny_gid
* @param string $folder_hash
*/
function recursive_activity_recipients($arr_allow_cid, $arr_allow_gid, $arr_deny_cid, $arr_deny_gid, $folder_hash) {
function attach_recursive_perms($arr_allow_cid, $arr_allow_gid, $arr_deny_cid, $arr_deny_gid, $folder_hash) {
$ret = array();
$parent_arr = array();
$count_values = array();
$poster = App::get_observer();
//turn allow_gid into allow_cid's
foreach($arr_allow_gid as $gid) {
$in_group = group_get_members($gid);
//lookup all channels in sharee group and add them to sharee $arr_allow_cid
if($arr_allow_gid) {
$in_group = expand_groups($arr_allow_gid);
$arr_allow_cid = array_unique(array_merge($arr_allow_cid, $in_group));
}
//count existing parent folders - we will compare to that count later
$count = 0;
while($folder_hash) {
$x = q("SELECT allow_cid, allow_gid, deny_cid, deny_gid, folder FROM attach WHERE hash = '%s' LIMIT 1",
@ -1797,30 +1801,20 @@ function recursive_activity_recipients($arr_allow_cid, $arr_allow_gid, $arr_deny
//only process private folders
if($x[0]['allow_cid'] || $x[0]['allow_gid'] || $x[0]['deny_cid'] || $x[0]['deny_gid']) {
$parent_arr['allow_cid'][] = expand_acl($x[0]['allow_cid']);
$parent_arr['allow_gid'][] = expand_acl($x[0]['allow_gid']);
/**
* @TODO should find a much better solution for the allow_cid <-> allow_gid problem.
* Do not use allow_gid for now. Instead lookup the members of the group directly and add them to allow_cid.
* */
if($parent_arr['allow_gid']) {
foreach($parent_arr['allow_gid'][$count] as $gid) {
$in_group = group_get_members($gid);
$parent_arr['allow_cid'][$count] = array_unique(array_merge($parent_arr['allow_cid'][$count], $in_group));
}
}
$parent_arr['deny_cid'][] = expand_acl($x[0]['deny_cid']);
$parent_arr['deny_gid'][] = expand_acl($x[0]['deny_gid']);
//this is the number of all existing parent folders - we will compare to that count later
$count++;
}
$folder_hash = $x[0]['folder'];
}
//logger(EOL . 'parent_arr: ' . print_r($parent_arr,true));
//if none of the parent folders is private just return file perms
if(!$parent_arr['allow_cid'] && !$parent_arr['allow_gid'] && !$parent_arr['deny_cid'] && !$parent_arr['deny_gid']) {
$ret['allow_gid'] = $arr_allow_gid;
@ -1831,7 +1825,7 @@ function recursive_activity_recipients($arr_allow_cid, $arr_allow_gid, $arr_deny
return $ret;
}
//if there are no perms on the file we get them from the first parent folder
//if there are no perms on the file we will work with the perms from the first parent folder
if(!$arr_allow_cid && !$arr_allow_gid && !$arr_deny_cid && !$arr_deny_gid) {
$arr_allow_cid = $parent_arr['allow_cid'][0];
$arr_allow_gid = $parent_arr['allow_gid'][0];
@ -1839,51 +1833,82 @@ function recursive_activity_recipients($arr_allow_cid, $arr_allow_gid, $arr_deny
$arr_deny_gid = $parent_arr['deny_gid'][0];
}
//allow_cid
$r_arr_allow_cid = false;
foreach ($parent_arr['allow_cid'] as $folder_arr_allow_cid) {
foreach ($folder_arr_allow_cid as $ac_hash) {
$count_values[$ac_hash]++;
/***
*
* check if sharee has perms for all parent folders
*
***/
$r_arr_allow_cid = [];
if($parent_arr['allow_cid']) {
//check sharee arr_allow_cid against allow_cid of all parent folders
foreach($parent_arr['allow_cid'] as $folder_arr_allow_cid) {
foreach($folder_arr_allow_cid as $ac_hash) {
$count_values[$ac_hash]++;
}
}
}
foreach ($arr_allow_cid as $fac_hash) {
if($count_values[$fac_hash] == $count)
$r_arr_allow_cid[] = $fac_hash;
foreach($arr_allow_cid as $fac_hash) {
if($count_values[$fac_hash] == $count)
$r_arr_allow_cid[] = $fac_hash;
}
//logger(EOL . 'r_arr_allow_cid: ' . print_r($r_arr_allow_cid,true));
}
//allow_gid
$r_arr_allow_gid = false;
foreach ($parent_arr['allow_gid'] as $folder_arr_allow_gid) {
foreach ($folder_arr_allow_gid as $ag_hash) {
$count_values[$ag_hash]++;
if($parent_arr['allow_gid']) {
//check sharee arr_allow_cid against members of allow_gid of all parent folders
foreach($parent_arr['allow_gid'] as $folder_arr_allow_gid) {
//get the group members
$folder_arr_allow_cid = expand_groups($folder_arr_allow_gid);
foreach($folder_arr_allow_cid as $ac_hash) {
$count_values[$ac_hash]++;
}
}
foreach($arr_allow_cid as $fac_hash) {
if($count_values[$fac_hash] == $count)
$r_arr_allow_cid[] = $fac_hash;
}
//logger(EOL . 'groups - r_arr_allow_cid: ' . print_r($r_arr_allow_cid,true));
}
foreach ($arr_allow_gid as $fag_hash) {
if($count_values[$fag_hash] == $count)
$r_arr_allow_gid[] = $fag_hash;
/***
*
* check if sharee is denied somewhere in parent folders and deny him if so
*
***/
//deny_cid
$r_arr_deny_cid = [];
if($parent_arr['deny_cid']) {
foreach($parent_arr['deny_cid'] as $folder_arr_deny_cid) {
$r_arr_deny_cid = array_merge($arr_deny_cid, $folder_arr_deny_cid);
}
$r_arr_deny_cid = array_unique($r_arr_deny_cid);
//logger(EOL . 'r_arr_deny_cid: ' . print_r($r_arr_deny_cid,true));
}
//deny_gid
foreach($parent_arr['deny_gid'] as $folder_arr_deny_gid) {
$r_arr_deny_gid = array_merge($arr_deny_gid, $folder_arr_deny_gid);
}
$r_arr_deny_gid = array_unique($r_arr_deny_gid);
$r_arr_deny_gid = [];
//deny_cid
foreach($parent_arr['deny_cid'] as $folder_arr_deny_cid) {
$r_arr_deny_cid = array_merge($arr_deny_cid, $folder_arr_deny_cid);
if($parent_arr['deny_cid']) {
foreach($parent_arr['deny_gid'] as $folder_arr_deny_gid) {
$r_arr_deny_gid = array_merge($arr_deny_gid, $folder_arr_deny_gid);
}
$r_arr_deny_gid = array_unique($r_arr_deny_gid);
//logger(EOL . 'r_arr_deny_gid: ' . print_r($r_arr_dr_arr_deny_gideny_cid,true));
}
$r_arr_deny_cid = array_unique($r_arr_deny_cid);
//if none is allowed restrict to self
if(($r_arr_allow_gid === false) && ($r_arr_allow_cid === false)) {
$ret['allow_cid'] = [$poster['xchan_hash']];
} else {
$ret['allow_gid'] = $r_arr_allow_gid;
$ret['allow_cid'] = $r_arr_allow_cid;
$ret['deny_gid'] = $r_arr_deny_gid;
$ret['deny_cid'] = $r_arr_deny_cid;
}
//if no channel is allowed return false
if(! $r_arr_allow_cid)
return false;
$ret['allow_gid'] = []; // eventual group members are already collected in $r_arr_allow_cid
$ret['allow_cid'] = $r_arr_allow_cid;
$ret['deny_gid'] = $r_arr_deny_gid;
$ret['deny_cid'] = $r_arr_deny_cid;
return $ret;
}