470 lines
13 KiB
PHP
470 lines
13 KiB
PHP
<?php
|
|
|
|
/**
|
|
* @brief Calculate the hash that is needed for the "Friendica" cookie
|
|
*
|
|
* @param array $user Record from "user" table
|
|
*
|
|
* @return string Hashed data
|
|
*/
|
|
function cookie_hash($user) {
|
|
return(hash("sha256", get_config("system", "site_prvkey").
|
|
$user["uprvkey"].
|
|
$user["password"]));
|
|
}
|
|
|
|
/**
|
|
* @brief Set the "Friendica" cookie
|
|
*
|
|
* @param int $time
|
|
* @param array $user Record from "user" table
|
|
*/
|
|
function new_cookie($time, $user = array()) {
|
|
|
|
if ($time != 0) {
|
|
$time = $time + time();
|
|
}
|
|
|
|
if ($user) {
|
|
$value = json_encode(array("uid" => $user["uid"],
|
|
"hash" => cookie_hash($user),
|
|
"ip" => $_SERVER['REMOTE_ADDR']));
|
|
}
|
|
else {
|
|
$value = "";
|
|
}
|
|
|
|
setcookie("Friendica", $value, $time, "/", "",
|
|
(get_config('system', 'ssl_policy') == SSL_POLICY_FULL), true);
|
|
|
|
}
|
|
|
|
function authenticate_success($user_record, $login_initial = false, $interactive = false, $login_refresh = false) {
|
|
|
|
$a = get_app();
|
|
|
|
$_SESSION['uid'] = $user_record['uid'];
|
|
$_SESSION['theme'] = $user_record['theme'];
|
|
$_SESSION['mobile-theme'] = get_pconfig($user_record['uid'], 'system', 'mobile_theme');
|
|
$_SESSION['authenticated'] = 1;
|
|
$_SESSION['page_flags'] = $user_record['page-flags'];
|
|
$_SESSION['my_url'] = App::get_baseurl() . '/profile/' . $user_record['nickname'];
|
|
$_SESSION['my_address'] = $user_record['nickname'] . '@' . substr(App::get_baseurl(),strpos(App::get_baseurl(),'://')+3);
|
|
$_SESSION['addr'] = $_SERVER['REMOTE_ADDR'];
|
|
|
|
$a->user = $user_record;
|
|
|
|
if ($interactive) {
|
|
if ($a->user['login_date'] === '0000-00-00 00:00:00') {
|
|
$_SESSION['return_url'] = 'profile_photo/new';
|
|
$a->module = 'profile_photo';
|
|
info( t("Welcome ") . $a->user['username'] . EOL);
|
|
info( t('Please upload a profile photo.') . EOL);
|
|
}
|
|
else
|
|
info( t("Welcome back ") . $a->user['username'] . EOL);
|
|
}
|
|
|
|
$member_since = strtotime($a->user['register_date']);
|
|
if (time() < ($member_since + ( 60 * 60 * 24 * 14)))
|
|
$_SESSION['new_member'] = true;
|
|
else
|
|
$_SESSION['new_member'] = false;
|
|
if (strlen($a->user['timezone'])) {
|
|
date_default_timezone_set($a->user['timezone']);
|
|
$a->timezone = $a->user['timezone'];
|
|
}
|
|
|
|
$master_record = $a->user;
|
|
|
|
if ((x($_SESSION,'submanage')) && intval($_SESSION['submanage'])) {
|
|
$r = q("select * from user where uid = %d limit 1",
|
|
intval($_SESSION['submanage'])
|
|
);
|
|
if (dbm::is_result($r))
|
|
$master_record = $r[0];
|
|
}
|
|
|
|
$r = q("SELECT `uid`,`username`,`nickname` FROM `user` WHERE `password` = '%s' AND `email` = '%s' AND `account_removed` = 0 ",
|
|
dbesc($master_record['password']),
|
|
dbesc($master_record['email'])
|
|
);
|
|
if (dbm::is_result($r))
|
|
$a->identities = $r;
|
|
else
|
|
$a->identities = array();
|
|
|
|
$r = q("select `user`.`uid`, `user`.`username`, `user`.`nickname`
|
|
from manage INNER JOIN user on manage.mid = user.uid where `user`.`account_removed` = 0
|
|
and `manage`.`uid` = %d",
|
|
intval($master_record['uid'])
|
|
);
|
|
if (dbm::is_result($r))
|
|
$a->identities = array_merge($a->identities,$r);
|
|
|
|
if ($login_initial)
|
|
logger('auth_identities: ' . print_r($a->identities,true), LOGGER_DEBUG);
|
|
if ($login_refresh)
|
|
logger('auth_identities refresh: ' . print_r($a->identities,true), LOGGER_DEBUG);
|
|
|
|
$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
|
|
intval($_SESSION['uid']));
|
|
if (dbm::is_result($r)) {
|
|
$a->contact = $r[0];
|
|
$a->cid = $r[0]['id'];
|
|
$_SESSION['cid'] = $a->cid;
|
|
}
|
|
|
|
header('X-Account-Management-Status: active; name="' . $a->user['username'] . '"; id="' . $a->user['nickname'] .'"');
|
|
|
|
if ($login_initial || $login_refresh) {
|
|
|
|
q("UPDATE `user` SET `login_date` = '%s' WHERE `uid` = %d",
|
|
dbesc(datetime_convert()),
|
|
intval($_SESSION['uid'])
|
|
);
|
|
|
|
// Set the login date for all identities of the user
|
|
q("UPDATE `user` SET `login_date` = '%s' WHERE `password` = '%s' AND `email` = '%s' AND `account_removed` = 0",
|
|
dbesc(datetime_convert()),
|
|
dbesc($master_record['password']),
|
|
dbesc($master_record['email'])
|
|
);
|
|
|
|
|
|
}
|
|
|
|
if ($login_initial) {
|
|
// If the user specified to remember the authentication, then set a cookie
|
|
// that expires after one week (the default is when the browser is closed).
|
|
// The cookie will be renewed automatically.
|
|
// The week ensures that sessions will expire after some inactivity.
|
|
if ($_SESSION['remember']) {
|
|
logger('Injecting cookie for remembered user '. $_SESSION['remember_user']['nickname']);
|
|
new_cookie(604800, $user_record);
|
|
unset($_SESSION['remember']);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
if ($login_initial) {
|
|
call_hooks('logged_in', $a->user);
|
|
|
|
if (($a->module !== 'home') && isset($_SESSION['return_url'])) {
|
|
goaway(App::get_baseurl() . '/' . $_SESSION['return_url']);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
function can_write_wall(App $a, $owner) {
|
|
|
|
static $verified = 0;
|
|
|
|
if ((! (local_user())) && (! (remote_user()))) {
|
|
return false;
|
|
}
|
|
|
|
$uid = local_user();
|
|
|
|
if (($uid) && ($uid == $owner)) {
|
|
return true;
|
|
}
|
|
|
|
if (remote_user()) {
|
|
|
|
// use remembered decision and avoid a DB lookup for each and every display item
|
|
// DO NOT use this function if there are going to be multiple owners
|
|
|
|
// We have a contact-id for an authenticated remote user, this block determines if the contact
|
|
// belongs to this page owner, and has the necessary permissions to post content
|
|
|
|
if ($verified === 2) {
|
|
return true;
|
|
} elseif ($verified === 1) {
|
|
return false;
|
|
} else {
|
|
$cid = 0;
|
|
|
|
if (is_array($_SESSION['remote'])) {
|
|
foreach ($_SESSION['remote'] as $visitor) {
|
|
if ($visitor['uid'] == $owner) {
|
|
$cid = $visitor['cid'];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (! $cid) {
|
|
return false;
|
|
}
|
|
|
|
$r = q("SELECT `contact`.*, `user`.`page-flags` FROM `contact` INNER JOIN `user` on `user`.`uid` = `contact`.`uid`
|
|
WHERE `contact`.`uid` = %d AND `contact`.`id` = %d AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0
|
|
AND `user`.`blockwall` = 0 AND `readonly` = 0 AND ( `contact`.`rel` IN ( %d , %d ) OR `user`.`page-flags` = %d ) LIMIT 1",
|
|
intval($owner),
|
|
intval($cid),
|
|
intval(CONTACT_IS_SHARING),
|
|
intval(CONTACT_IS_FRIEND),
|
|
intval(PAGE_COMMUNITY)
|
|
);
|
|
|
|
if (dbm::is_result($r)) {
|
|
$verified = 2;
|
|
return true;
|
|
}
|
|
else {
|
|
$verified = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
function permissions_sql($owner_id,$remote_verified = false,$groups = null) {
|
|
|
|
$local_user = local_user();
|
|
$remote_user = remote_user();
|
|
|
|
/**
|
|
* Construct permissions
|
|
*
|
|
* default permissions - anonymous user
|
|
*/
|
|
|
|
$sql = " AND allow_cid = ''
|
|
AND allow_gid = ''
|
|
AND deny_cid = ''
|
|
AND deny_gid = ''
|
|
";
|
|
|
|
/**
|
|
* Profile owner - everything is visible
|
|
*/
|
|
|
|
if (($local_user) && ($local_user == $owner_id)) {
|
|
$sql = '';
|
|
}
|
|
|
|
/**
|
|
* Authenticated visitor. Unless pre-verified,
|
|
* check that the contact belongs to this $owner_id
|
|
* and load the groups the visitor belongs to.
|
|
* If pre-verified, the caller is expected to have already
|
|
* done this and passed the groups into this function.
|
|
*/
|
|
|
|
elseif ($remote_user) {
|
|
|
|
if (! $remote_verified) {
|
|
$r = q("SELECT id FROM contact WHERE id = %d AND uid = %d AND blocked = 0 LIMIT 1",
|
|
intval($remote_user),
|
|
intval($owner_id)
|
|
);
|
|
if (dbm::is_result($r)) {
|
|
$remote_verified = true;
|
|
$groups = init_groups_visitor($remote_user);
|
|
}
|
|
}
|
|
if ($remote_verified) {
|
|
|
|
$gs = '<<>>'; // should be impossible to match
|
|
|
|
if (is_array($groups) && count($groups)) {
|
|
foreach ($groups as $g)
|
|
$gs .= '|<' . intval($g) . '>';
|
|
}
|
|
|
|
/*$sql = sprintf(
|
|
" AND ( allow_cid = '' OR allow_cid REGEXP '<%d>' )
|
|
AND ( deny_cid = '' OR NOT deny_cid REGEXP '<%d>' )
|
|
AND ( allow_gid = '' OR allow_gid REGEXP '%s' )
|
|
AND ( deny_gid = '' OR NOT deny_gid REGEXP '%s')
|
|
",
|
|
intval($remote_user),
|
|
intval($remote_user),
|
|
dbesc($gs),
|
|
dbesc($gs)
|
|
);*/
|
|
$sql = sprintf(
|
|
" AND ( NOT (deny_cid REGEXP '<%d>' OR deny_gid REGEXP '%s')
|
|
AND ( allow_cid REGEXP '<%d>' OR allow_gid REGEXP '%s' OR ( allow_cid = '' AND allow_gid = '') )
|
|
)
|
|
",
|
|
intval($remote_user),
|
|
dbesc($gs),
|
|
intval($remote_user),
|
|
dbesc($gs)
|
|
);
|
|
}
|
|
}
|
|
return $sql;
|
|
}
|
|
|
|
|
|
function item_permissions_sql($owner_id,$remote_verified = false,$groups = null) {
|
|
|
|
$local_user = local_user();
|
|
$remote_user = remote_user();
|
|
|
|
/**
|
|
* Construct permissions
|
|
*
|
|
* default permissions - anonymous user
|
|
*/
|
|
|
|
$sql = " AND `item`.allow_cid = ''
|
|
AND `item`.allow_gid = ''
|
|
AND `item`.deny_cid = ''
|
|
AND `item`.deny_gid = ''
|
|
AND `item`.private = 0
|
|
";
|
|
|
|
/**
|
|
* Profile owner - everything is visible
|
|
*/
|
|
|
|
if ($local_user && ($local_user == $owner_id)) {
|
|
$sql = '';
|
|
}
|
|
|
|
/**
|
|
* Authenticated visitor. Unless pre-verified,
|
|
* check that the contact belongs to this $owner_id
|
|
* and load the groups the visitor belongs to.
|
|
* If pre-verified, the caller is expected to have already
|
|
* done this and passed the groups into this function.
|
|
*/
|
|
|
|
elseif ($remote_user) {
|
|
|
|
if (! $remote_verified) {
|
|
$r = q("SELECT id FROM contact WHERE id = %d AND uid = %d AND blocked = 0 LIMIT 1",
|
|
intval($remote_user),
|
|
intval($owner_id)
|
|
);
|
|
if (dbm::is_result($r)) {
|
|
$remote_verified = true;
|
|
$groups = init_groups_visitor($remote_user);
|
|
}
|
|
}
|
|
if ($remote_verified) {
|
|
|
|
$gs = '<<>>'; // should be impossible to match
|
|
|
|
if (is_array($groups) && count($groups)) {
|
|
foreach ($groups as $g) {
|
|
$gs .= '|<' . intval($g) . '>';
|
|
}
|
|
}
|
|
|
|
$sql = sprintf(
|
|
/*" AND ( private = 0 OR ( private in (1,2) AND wall = 1 AND ( allow_cid = '' OR allow_cid REGEXP '<%d>' )
|
|
AND ( deny_cid = '' OR NOT deny_cid REGEXP '<%d>' )
|
|
AND ( allow_gid = '' OR allow_gid REGEXP '%s' )
|
|
AND ( deny_gid = '' OR NOT deny_gid REGEXP '%s')))
|
|
",
|
|
intval($remote_user),
|
|
intval($remote_user),
|
|
dbesc($gs),
|
|
dbesc($gs)
|
|
*/
|
|
" AND ( `item`.private = 0 OR ( `item`.private in (1,2) AND `item`.`wall` = 1
|
|
AND ( NOT (`item`.deny_cid REGEXP '<%d>' OR `item`.deny_gid REGEXP '%s')
|
|
AND ( `item`.allow_cid REGEXP '<%d>' OR `item`.allow_gid REGEXP '%s' OR ( `item`.allow_cid = '' AND `item`.allow_gid = '')))))
|
|
",
|
|
intval($remote_user),
|
|
dbesc($gs),
|
|
intval($remote_user),
|
|
dbesc($gs)
|
|
);
|
|
}
|
|
}
|
|
|
|
return $sql;
|
|
}
|
|
|
|
|
|
/*
|
|
* Functions used to protect against Cross-Site Request Forgery
|
|
* The security token has to base on at least one value that an attacker can't know - here it's the session ID and the private key.
|
|
* In this implementation, a security token is reusable (if the user submits a form, goes back and resubmits the form, maybe with small changes;
|
|
* or if the security token is used for ajax-calls that happen several times), but only valid for a certain amout of time (3hours).
|
|
* The "typename" seperates the security tokens of different types of forms. This could be relevant in the following case:
|
|
* A security token is used to protekt a link from CSRF (e.g. the "delete this profile"-link).
|
|
* If the new page contains by any chance external elements, then the used security token is exposed by the referrer.
|
|
* Actually, important actions should not be triggered by Links / GET-Requests at all, but somethimes they still are,
|
|
* so this mechanism brings in some damage control (the attacker would be able to forge a request to a form of this type, but not to forms of other types).
|
|
*/
|
|
function get_form_security_token($typename = '') {
|
|
$a = get_app();
|
|
|
|
$timestamp = time();
|
|
$sec_hash = hash('whirlpool', $a->user['guid'] . $a->user['prvkey'] . session_id() . $timestamp . $typename);
|
|
|
|
return $timestamp . '.' . $sec_hash;
|
|
}
|
|
|
|
function check_form_security_token($typename = '', $formname = 'form_security_token') {
|
|
if (!x($_REQUEST, $formname)) return false;
|
|
$hash = $_REQUEST[$formname];
|
|
|
|
$max_livetime = 10800; // 3 hours
|
|
|
|
$a = get_app();
|
|
|
|
$x = explode('.', $hash);
|
|
if (time() > (IntVal($x[0]) + $max_livetime)) return false;
|
|
|
|
$sec_hash = hash('whirlpool', $a->user['guid'] . $a->user['prvkey'] . session_id() . $x[0] . $typename);
|
|
|
|
return ($sec_hash == $x[1]);
|
|
}
|
|
|
|
function check_form_security_std_err_msg() {
|
|
return t('The form security token was not correct. This probably happened because the form has been opened for too long (>3 hours) before submitting it.') . EOL;
|
|
}
|
|
function check_form_security_token_redirectOnErr($err_redirect, $typename = '', $formname = 'form_security_token') {
|
|
if (!check_form_security_token($typename, $formname)) {
|
|
$a = get_app();
|
|
logger('check_form_security_token failed: user ' . $a->user['guid'] . ' - form element ' . $typename);
|
|
logger('check_form_security_token failed: _REQUEST data: ' . print_r($_REQUEST, true), LOGGER_DATA);
|
|
notice( check_form_security_std_err_msg() );
|
|
goaway(App::get_baseurl() . $err_redirect );
|
|
}
|
|
}
|
|
function check_form_security_token_ForbiddenOnErr($typename = '', $formname = 'form_security_token') {
|
|
if (!check_form_security_token($typename, $formname)) {
|
|
$a = get_app();
|
|
logger('check_form_security_token failed: user ' . $a->user['guid'] . ' - form element ' . $typename);
|
|
logger('check_form_security_token failed: _REQUEST data: ' . print_r($_REQUEST, true), LOGGER_DATA);
|
|
header('HTTP/1.1 403 Forbidden');
|
|
killme();
|
|
}
|
|
}
|
|
|
|
// Returns an array of group id's this contact is a member of.
|
|
// This array will only contain group id's related to the uid of this
|
|
// DFRN contact. They are *not* neccessarily unique across the entire site.
|
|
|
|
|
|
if (! function_exists('init_groups_visitor')) {
|
|
function init_groups_visitor($contact_id) {
|
|
$groups = array();
|
|
$r = q("SELECT `gid` FROM `group_member`
|
|
WHERE `contact-id` = %d ",
|
|
intval($contact_id)
|
|
);
|
|
if (dbm::is_result($r)) {
|
|
foreach ($r as $rr)
|
|
$groups[] = $rr['gid'];
|
|
}
|
|
return $groups;
|
|
}}
|
|
|