+++ /dev/null
-package PVE::RPCEnvironment;
-
-use strict;
-use warnings;
-
-use PVE::RESTEnvironment;
-
-use PVE::Exception qw(raise raise_perm_exc);
-use PVE::SafeSyslog;
-use PVE::Tools;
-use PVE::INotify;
-use PVE::Cluster;
-use PVE::ProcFSTools;
-use PVE::AccessControl;
-
-use base qw(PVE::RESTEnvironment);
-
-# ACL cache
-
-my $compile_acl_path = sub {
- my ($self, $user, $path) = @_;
-
- my $cfg = $self->{user_cfg};
-
- return undef if !$cfg->{roles};
-
- die "internal error" if $user eq 'root@pam';
-
- my $cache = $self->{aclcache};
- $cache->{$user} = {} if !$cache->{$user};
- my $data = $cache->{$user};
-
- my ($username, undef) = PVE::AccessControl::split_tokenid($user, 1);
- die "internal error" if $username && $username ne 'root@pam' && !defined($cache->{$username});
-
- if (!$data->{poolroles}) {
- $data->{poolroles} = {};
-
- foreach my $pool (keys %{$cfg->{pools}}) {
- my $d = $cfg->{pools}->{$pool};
- my @ra = PVE::AccessControl::roles($cfg, $user, "/pool/$pool"); # pool roles
- next if !scalar(@ra);
- foreach my $vmid (keys %{$d->{vms}}) {
- for my $role (@ra) {
- $data->{poolroles}->{"/vms/$vmid"}->{$role} = 1;
- }
- }
- foreach my $storeid (keys %{$d->{storage}}) {
- for my $role (@ra) {
- $data->{poolroles}->{"/storage/$storeid"}->{$role} = 1;
- }
- }
- }
- }
-
- my @ra = PVE::AccessControl::roles($cfg, $user, $path);
-
- # apply roles inherited from pools
- # Note: assume we do not want to propagate those privs
- if ($data->{poolroles}->{$path}) {
- if (!($ra[0] && $ra[0] eq 'NoAccess')) {
- if ($data->{poolroles}->{$path}->{NoAccess}) {
- @ra = ('NoAccess');
- } else {
- foreach my $role (keys %{$data->{poolroles}->{$path}}) {
- push @ra, $role;
- }
- }
- }
- }
-
- $data->{roles}->{$path} = [ @ra ];
-
- my $privs = {};
- foreach my $role (@ra) {
- if (my $privset = $cfg->{roles}->{$role}) {
- foreach my $p (keys %$privset) {
- $privs->{$p} = 1;
- }
- }
- }
-
- if ($username && $username ne 'root@pam') {
- # intersect user and token permissions
- my $user_privs = $cache->{$username}->{privs}->{$path};
- $privs = { map { $_ => 1 } grep { $user_privs->{$_} } keys %$privs };
- }
-
- $data->{privs}->{$path} = $privs;
-
- return $privs;
-};
-
-sub permissions {
- my ($self, $user, $path) = @_;
-
- if ($user eq 'root@pam') { # root can do anything
- my $cfg = $self->{user_cfg};
- return $cfg->{roles}->{'Administrator'};
- }
-
- if (PVE::AccessControl::pve_verify_tokenid($user, 1)) {
- my ($username, $token) = PVE::AccessControl::split_tokenid($user);
- my $cfg = $self->{user_cfg};
- my $token_info = $cfg->{users}->{$username}->{tokens}->{$token};
- return {} if !$token_info;
-
- # ensure cache for user is populated
- my $user_perms = $self->permissions($username, $path);
-
- # return user privs for non-privsep tokens
- return $user_perms if !$token_info->{privsep};
- } else {
- $user = PVE::AccessControl::verify_username($user, 1);
- return {} if !$user;
- }
-
- my $cache = $self->{aclcache};
- $cache->{$user} = {} if !$cache->{$user};
-
- my $acl = $cache->{$user};
-
- my $perm = $acl->{privs}->{$path};
- return $perm if $perm;
-
- return &$compile_acl_path($self, $user, $path);
-}
-
-sub check {
- my ($self, $user, $path, $privs, $noerr) = @_;
-
- my $perm = $self->permissions($user, $path);
-
- foreach my $priv (@$privs) {
- PVE::AccessControl::verify_privname($priv);
- if (!$perm->{$priv}) {
- return undef if $noerr;
- raise_perm_exc("$path, $priv");
- }
- };
-
- return 1;
-};
-
-sub check_any {
- my ($self, $user, $path, $privs, $noerr) = @_;
-
- my $perm = $self->permissions($user, $path);
-
- my $found = 0;
- foreach my $priv (@$privs) {
- PVE::AccessControl::verify_privname($priv);
- if ($perm->{$priv}) {
- $found = 1;
- last;
- }
- };
-
- return 1 if $found;
-
- return undef if $noerr;
-
- raise_perm_exc("$path, " . join("|", @$privs));
-};
-
-sub check_full {
- my ($self, $username, $path, $privs, $any, $noerr) = @_;
- if ($any) {
- return $self->check_any($username, $path, $privs, $noerr);
- } else {
- return $self->check($username, $path, $privs, $noerr);
- }
-}
-
-sub check_user_enabled {
- my ($self, $user, $noerr) = @_;
-
- my $cfg = $self->{user_cfg};
- return PVE::AccessControl::check_user_enabled($cfg, $user, $noerr);
-}
-
-sub check_user_exist {
- my ($self, $user, $noerr) = @_;
-
- my $cfg = $self->{user_cfg};
- return PVE::AccessControl::check_user_exist($cfg, $user, $noerr);
-}
-
-sub check_pool_exist {
- my ($self, $pool, $noerr) = @_;
-
- my $cfg = $self->{user_cfg};
-
- return 1 if $cfg->{pools}->{$pool};
-
- return undef if $noerr;
-
- raise_perm_exc("pool '$pool' does not exist");
-}
-
-sub check_vm_perm {
- my ($self, $user, $vmid, $pool, $privs, $any, $noerr) = @_;
-
- my $cfg = $self->{user_cfg};
-
- if ($pool) {
- return if $self->check_full($user, "/pool/$pool", $privs, $any, 1);
- }
- return $self->check_full($user, "/vms/$vmid", $privs, $any, $noerr);
-};
-
-sub is_group_member {
- my ($self, $group, $user) = @_;
-
- my $cfg = $self->{user_cfg};
-
- return 0 if !$cfg->{groups}->{$group};
-
- return defined($cfg->{groups}->{$group}->{users}->{$user});
-}
-
-sub filter_groups {
- my ($self, $user, $privs, $any) = @_;
-
- my $cfg = $self->{user_cfg};
-
- my $groups = {};
- foreach my $group (keys %{$cfg->{groups}}) {
- my $path = "/access/groups/$group";
- if ($self->check_full($user, $path, $privs, $any, 1)) {
- $groups->{$group} = $cfg->{groups}->{$group};
- }
- }
-
- return $groups;
-}
-
-sub group_member_join {
- my ($self, $grouplist) = @_;
-
- my $users = {};
-
- my $cfg = $self->{user_cfg};
- foreach my $group (@$grouplist) {
- my $data = $cfg->{groups}->{$group};
- next if !$data;
- foreach my $user (keys %{$data->{users}}) {
- $users->{$user} = 1;
- }
- }
-
- return $users;
-}
-
-sub check_perm_modify {
- my ($self, $username, $path, $noerr) = @_;
-
- return $self->check($username, '/access', [ 'Permissions.Modify' ], $noerr) if !$path;
-
- my $testperms = [ 'Permissions.Modify' ];
- if ($path =~ m|^/storage/.+$|) {
- push @$testperms, 'Datastore.Allocate';
- } elsif ($path =~ m|^/vms/.+$|) {
- push @$testperms, 'VM.Allocate';
- } elsif ($path =~ m|^/pool/.+$|) {
- push @$testperms, 'Pool.Allocate';
- }
-
- return $self->check_any($username, $path, $testperms, $noerr);
-}
-
-sub exec_api2_perm_check {
- my ($self, $check, $username, $param, $noerr) = @_;
-
- # syslog("info", "CHECK " . join(', ', @$check));
-
- my $ind = 0;
- my $test = $check->[$ind++];
- die "no permission test specified" if !$test;
-
- if ($test eq 'and') {
- while (my $subcheck = $check->[$ind++]) {
- $self->exec_api2_perm_check($subcheck, $username, $param);
- }
- return 1;
- } elsif ($test eq 'or') {
- while (my $subcheck = $check->[$ind++]) {
- return 1 if $self->exec_api2_perm_check($subcheck, $username, $param, 1);
- }
- return 0 if $noerr;
- raise_perm_exc();
- } elsif ($test eq 'perm') {
- my ($t, $tmplpath, $privs, %options) = @$check;
- my $any = $options{any};
- die "missing parameters" if !($tmplpath && $privs);
- my $require_param = $options{require_param};
- if ($require_param && !defined($param->{$require_param})) {
- return 0 if $noerr;
- raise_perm_exc();
- }
- my $path = PVE::Tools::template_replace($tmplpath, $param);
- $path = PVE::AccessControl::normalize_path($path);
- return $self->check_full($username, $path, $privs, $any, $noerr);
- } elsif ($test eq 'userid-group') {
- my $userid = $param->{userid};
- my ($t, $privs, %options) = @$check;
- return 0 if !$options{groups_param} && !$self->check_user_exist($userid, $noerr);
- if (!$self->check_any($username, "/access/groups", $privs, 1)) {
- my $groups = $self->filter_groups($username, $privs, 1);
- if ($options{groups_param}) {
- my @group_param = PVE::Tools::split_list($param->{groups});
- raise_perm_exc("/access/groups, " . join("|", @$privs)) if !scalar(@group_param);
- foreach my $pg (@group_param) {
- raise_perm_exc("/access/groups/$pg, " . join("|", @$privs))
- if !$groups->{$pg};
- }
- } else {
- my $allowed_users = $self->group_member_join([keys %$groups]);
- if (!$allowed_users->{$userid}) {
- return 0 if $noerr;
- raise_perm_exc();
- }
- }
- }
- return 1;
- } elsif ($test eq 'userid-param') {
- my ($userid, undef, $realm) = PVE::AccessControl::verify_username($param->{userid});
- my ($t, $subtest) = @$check;
- die "missing parameters" if !$subtest;
- if ($subtest eq 'self') {
- return 0 if !$self->check_user_exist($userid, $noerr);
- return 1 if $username eq $userid;
- return 0 if $noerr;
- raise_perm_exc();
- } elsif ($subtest eq 'Realm.AllocateUser') {
- my $path = "/access/realm/$realm";
- return $self->check($username, $path, ['Realm.AllocateUser'], $noerr);
- } else {
- die "unknown userid-param test";
- }
- } elsif ($test eq 'perm-modify') {
- my ($t, $tmplpath) = @$check;
- my $path = PVE::Tools::template_replace($tmplpath, $param);
- $path = PVE::AccessControl::normalize_path($path);
- return $self->check_perm_modify($username, $path, $noerr);
- } else {
- die "unknown permission test";
- }
-};
-
-sub check_api2_permissions {
- my ($self, $perm, $username, $param) = @_;
-
- return 1 if !$username && $perm->{user} && $perm->{user} eq 'world';
-
- raise_perm_exc("user != null") if !$username;
-
- return 1 if $username eq 'root@pam';
-
- raise_perm_exc('user != root@pam') if !$perm;
-
- return 1 if $perm->{user} && $perm->{user} eq 'all';
-
- return $self->exec_api2_perm_check($perm->{check}, $username, $param)
- if $perm->{check};
-
- raise_perm_exc();
-}
-
-sub log_cluster_msg {
- my ($self, $pri, $user, $msg) = @_;
-
- PVE::Cluster::log_msg($pri, $user, $msg);
-}
-
-sub broadcast_tasklist {
- my ($self, $tlist) = @_;
-
- PVE::Cluster::broadcast_tasklist($tlist);
-}
-
-# initialize environment - must be called once at program startup
-sub init {
- my ($class, $type, %params) = @_;
-
- $class = ref($class) || $class;
-
- my $self = $class->SUPER::init($type, %params);
-
- $self->{user_cfg} = {};
- $self->{aclcache} = {};
- $self->{aclversion} = undef;
-
- return $self;
-};
-
-
-# init_request - must be called before each RPC request
-sub init_request {
- my ($self, %params) = @_;
-
- PVE::Cluster::cfs_update();
-
- $self->{result_attributes} = {};
-
- my $userconfig; # we use this for regression tests
- foreach my $p (keys %params) {
- if ($p eq 'userconfig') {
- $userconfig = $params{$p};
- } else {
- die "unknown parameter '$p'";
- }
- }
-
- eval {
- $self->{aclcache} = {};
- if ($userconfig) {
- my $ucdata = PVE::Tools::file_get_contents($userconfig);
- my $cfg = PVE::AccessControl::parse_user_config($userconfig, $ucdata);
- $self->{user_cfg} = $cfg;
- } else {
- my $ucvers = PVE::Cluster::cfs_file_version('user.cfg');
- if (!$self->{aclcache} || !defined($self->{aclversion}) ||
- !defined($ucvers) || ($ucvers ne $self->{aclversion})) {
- $self->{aclversion} = $ucvers;
- my $cfg = PVE::Cluster::cfs_read_file('user.cfg');
- $self->{user_cfg} = $cfg;
- }
- }
- };
- if (my $err = $@) {
- $self->{user_cfg} = {};
- die "Unable to load access control list: $err";
- }
-}
-
-# hacks: to provide better backwards compatibiliy
-
-# old code uses PVE::RPCEnvironment::get();
-# new code should use PVE::RPCEnvironment->get();
-sub get {
- return PVE::RESTEnvironment->get();
-}
-
-# old code uses PVE::RPCEnvironment::is_worker();
-# new code should use PVE::RPCEnvironment->is_worker();
-sub is_worker {
- return PVE::RESTEnvironment->is_worker();
-}
-
-1;
projects / pve-access-control.git / blobdiff