security.lib.php
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<?php
/*
File: security.lib.php
Author: Chris
Date: 2000/12/14
Owl: Copyright Chris Vincent <cvincent@project802.net>
You should have received a copy of the GNU Public
License along with this package; if not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* Get the security policy for a specified folder
*
* @param id folder id
*
* @return int 1 = permission granted, 0 = permission denied
*/
function getfolderpolicy($id) {
global $default;
$sql = new Owl_DB; $sql->query("select security from $default->owl_folders_table where id = '$id'");
while ($sql->next_record()) return $sql->f("security");
}
/**
* Get the security policy for a specified file
*
* @param id file id
*
* @return int security policy
*/
function getfilepolicy($id) {
global $default;
$sql = new Owl_DB; $sql->query("select security from $default->owl_files_table where id = '$id'");
while ($sql->next_record()) return $sql->f("security");
}
/**
* This function is simple...it returns either a 1 or 0
* If the authentication is good, it returns 1
* If the authentication is bad, it returns 0
*
* Policy key for FILES:
*
* 0 = World read
* 1 = World edit
* 2 = Group read
* 3 = Group edit
* 4 = Creator edit
* 5 = Group edit no delete
* 6 = World edit no delete
* 7 = Group edit, World read
* 8 = Group edit, World read - no delete
*
* Policy key for FOLDERS:
*
* 50 = Anyone can read
* 51 = Anyone can upload/create folders
* 56 = Anyone can upload/create folders but not delete
* 52 = Only the group can read
* 53 = Only the group can upload/create folders
* 55 = Only the group can upload/create folders but not delete; except the creator
* 54 = Only the creator can upload/create folders
* 57 = Only the group can upload/create folders but anyone can read
* 58 = Only the group can upload/create folders (no delete) but anyone can read
*/
function check_auth($id, $action, $userid) {
global $default;
$usergroup = owlusergroup($userid);
$filecreator = owlfilecreator($id);
$foldercreator = owlfoldercreator($id);
$filegroup = owlfilegroup($id);
$foldergroup = owlfoldergroup($id);
if (($action == "folder_modify") ||
($action == "folder_view") ||
($action == "folder_delete") ||
($action == "folder_property")) {
$policy = getfolderpolicy($id);
} else {
$policy = getfilepolicy($id);
}
//if policy is: world read
if ($policy == "0") {
//if the user want to delete/modify
if (($action == "file_delete") || ($action == "file_modify")) {
//if the user is not the file create
if ($userid != $filecreator) {
$authorization = "0";
} else {
$authorization = "1";
}
} else {
$authorization = "1";
}
}
//if the policy is: world edit
if ($policy == "1") {
$authorization = "1";
}
//if the policy is: group read
if ($policy == "2") {
//if the user wants to delete/modify the file
if (($action == "file_delete") || ($action == "file_modify")) {
if ($userid != $filecreator) {
$authorization = "0";
} else {
$authorization = "1";
}
} else {
// Bozz Change Begin
$sql = new Owl_DB;
$sql->query("SELECT * FROM $default->owl_users_grpmem_table WHERE userid = '$userid' and groupid = '$filegroup'");
//if the user is in the group
if ($filegroup == $usergroup || $sql->num_rows($sql) > 0) {
// Bozz Change End
$authorization = "1";
} else {
$authorization = "0";
}
}
}
//if the policy is: group edit
if ($policy == "3") {
if (($action == "file_delete") || ($action == "file_modify") || ($action == "file_download")) {
// Bozz Change Begin
$sql = new Owl_DB;
$sql->query("SELECT * FROM $default->owl_users_grpmem_table WHERE userid = '$userid' and groupid = '$filegroup'");
// Bozz Change End
//if the user is not in the group
if ($usergroup != $filegroup && $sql->num_rows($sql) == 0) {
$authorization = "0";
} else {
$authorization = "1";
}
}
}
//if the policy is: creator edit
if ($policy == "4") {
//if the user is the creator
if ($filecreator == $userid) {
$authorization = "1";
} else {
$authorization = "0";
}
}
//if the policy is: group edit no delete
if ($policy == "5") {
if (($action == "file_modify") || ($action == "file_download")) {
// Bozz Change Begin
$sql = new Owl_DB;
$sql->query("SELECT * FROM $default->owl_users_grpmem_table WHERE userid = '$userid' and groupid = '$filegroup'");
// Bozz Change End
//if the user is in the group
if ($usergroup != $filegroup && $sql->num_rows($sql) == 0) {
$authorization = "0";
} else {
$authorization = "1";
}
}
if ($action == "file_delete") {
//if the user is the file creator
if ($filecreator == $userid) {
$authorization = "1";
} else {
$authorization = "0";
}
}
}
//if the policy is: world edit no delete
if ($policy == "6") {
$authorization = "1";
if ($action == "file_delete") {
//if the user is the creator
if ($filecreator == $userid) {
$authorization = "1";
} else {
$authorization = "0";
}
}
}
//if the policy is: group edit world read
if ($policy == "7") {
if (($action == "file_delete") || ($action == "file_modify")) {
$sql = new Owl_DB;
$sql->query("SELECT * FROM $default->owl_users_grpmem_table WHERE userid = '$userid' and groupid = '$filegroup'");
//if the user is not in the group
if ($usergroup != $filegroup && $sql->num_rows($sql) == 0) {
$authorization = "0";
} else {
$authorization = "1";
}
}
if ($action == "file_download") {
$authorization = "1";
}
}
//if the policy is: group edit, world read, no delete
if ($policy == "8") {
if ($action == "file_modify") {
$sql = new Owl_DB;
$sql->query("SELECT * FROM $default->owl_users_grpmem_table WHERE userid = '$userid' and groupid = '$filegroup'");
//if the user is not in the group
if ($usergroup != $filegroup && $sql->num_rows($sql) == 0) {
$authorization = "0";
} else {
$authorization = "1";
}
}
if ($action == "file_download") {
$authorization = "1";
}
if ($action == "file_delete") {
//if the user is the creator
if ($filecreator == $userid) {
$authorization = "1";
} else {
$authorization = "0";
}
}
}
//if the policy is: anyone can read
if ($policy == "50") {
if (($action == "folder_delete") ||
($action == "folder_property") ||
($action == "folder_modify")) {
//if the user is not the creator
if ($userid != $foldercreator) {
$authorization = "0";
} else {
$authorization = "1";
}
} else {
$authorization = "1";
}
}
//if the policy is: anyone can upload/create folders
if ($policy == "51") {
$authorization = "1";
}
//if the policy is: only the group can read folders
if ($policy == "52") {
if (($action == "folder_delete") ||
($action == "folder_property") ||
($action == "folder_modify")) {
if ($userid != $foldercreator) {
$authorization = "0";
} else {
$authorization = "1";
}
} else {
// Bozz Change Begin
$sql = new Owl_DB;
$sql->query("SELECT * FROM $default->owl_users_grpmem_table WHERE userid = '$userid' and groupid = '$foldergroup'");
if ($foldergroup == $usergroup || $sql->num_rows($sql) > 0) {
// Bozz Change End
$authorization = "1";
} else {
$authorization = "0";
}
}
}
//if the policy is: only the group can upload/create folders
if ($policy == "53") {
if (($action == "folder_delete") ||
($action == "folder_modify") ||
($action == "folder_property") ||
($action == "folder_view")) {
// Bozz Change Begin
$sql = new Owl_DB;
$sql->query("SELECT * FROM $default->owl_users_grpmem_table WHERE userid = '$userid' and groupid = '$foldergroup'");
//if the user is not in the group
if ($usergroup != $foldergroup && $sql->num_rows($sql) == 0) {
// Bozz Change End
$authorization = "0";
} else {
$authorization = "1";
}
}
}
//if the policy is: only the creator can upload/change files
if ($policy == "54") {
//if the user is the creator
if ($foldercreator == $userid) {
$authorization = "1";
} else {
$authorization = "0";
}
}
//if the policy is: only the group can upload/create folders but not delete; except the creator
if ($policy == "55") {
if (($action == "folder_modify") || ($action == "folder_view")) {
// Bozz Change Begin
$sql = new Owl_DB;
$sql->query("SELECT * FROM $default->owl_users_grpmem_table WHERE userid = '$userid' and groupid = '$foldergroup'");
if ($usergroup != $foldergroup && $sql->num_rows($sql) == 0) {
// Bozz Change End
$authorization = "0";
} else {
$authorization = "1";
}
}
if (($action == "folder_delete") ||
($action == "folder_property")) {
if ($foldercreator == $userid) {
$authorization = "1";
} else {
$authorization = "0";
}
}
}
//if the policy is: anyone can upload/create folders but not delete
if ($policy == "56") {
$authorization = "1";
if (($action == "folder_delete") ||
($action == "folder_property")) {
//if the user is the creator
if ($foldercreator == $userid) {
$authorization = "1";
} else {
$authorization = "0";
}
}
}
//if the policy is: only the group can upload/create folders but anyone can read
if ($policy == "57") {
if (($action == "folder_modify") || ($action == "folder_delete")) {
$sql = new Owl_DB;
$sql->query("SELECT * FROM $default->owl_users_grpmem_table WHERE userid = '$userid' and groupid = '$foldergroup'");
//if the user is not in the group
if (($usergroup != $foldergroup) && ($sql->num_rows($sql) == 0)) {
$authorization = "0";
} else {
$authorization = "1";
}
}
if ($action == "folder_property") {
//if the user is the creator
if ($foldercreator == $userid) {
$authorization = "1";
} else {
$authorization = "0";
}
}
if ($action == "folder_view") {
$authorization = "1";
}
}
//if the policy is: only the group can upload/create folders (no delete) but anyone can read
if ($policy == "58") {
if ($action == "folder_modify") {
$sql = new Owl_DB;
$sql->query("SELECT * FROM $default->owl_users_grpmem_table WHERE userid = '$userid' and groupid = '$foldergroup'");
//if the user is not in the group
if ($usergroup != $foldergroup && $sql->num_rows($sql) == 0) {
$authorization = "0";
} else {
$authorization = "1";
}
}
if ($action == "folder_property") {
//if the user is the creator
if ($foldercreator == $userid) {
$authorization = "1";
} else {
$authorization = "0";
}
}
if ($action == "folder_delete") {
//if the user is the creator
if ($foldercreator == $userid) {
$authorization = "1";
} else {
$authorization = "0";
}
}
if ($action == "folder_view") {
$authorization = "1";
}
}
// Bozz Change Begin
// I Think that the Admin Group should
// have the same rights as the admin user
if ($userid == 1 || $usergroup == 0) {
// Bozz Change End
$authorization = "1";
}
// cv change bug #504298
// this call must be recursive through the parent directories
// continue recursion?
if( $authorization == 1 ) {
if( ($policy > 49) && ($id == 1) ) {
// stop if we are at the doc root
return $authorization;
} else {
// continue;
if($policy < 50) {
$parent = owlfileparent($id);
} else {
$parent = owlfolderparent($id);
}
return check_auth($parent, "folder_view", $userid);
}
} else {
// dont continue because authorization is 0
return $authorization;
}
}