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-rw-r--r--Zotlabs/Storage/BasicAuth.php212
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+<?php
+
+namespace Zotlabs\Storage;
+
+use Sabre\DAV;
+
+/**
+ * @brief Authentication backend class for DAV.
+ *
+ * This class also contains some data which is not necessary for authentication
+ * like timezone settings.
+ *
+ * @extends Sabre\DAV\Auth\Backend\AbstractBasic
+ *
+ * @link http://github.com/friendica/red
+ * @license http://opensource.org/licenses/mit-license.php The MIT License (MIT)
+ */
+class BasicAuth extends DAV\Auth\Backend\AbstractBasic {
+
+ /**
+ * @brief This variable holds the currently logged-in channel_address.
+ *
+ * It is used for building path in filestorage/.
+ *
+ * @var string|null
+ */
+ protected $channel_name = null;
+ /**
+ * channel_id of the current channel of the logged-in account.
+ *
+ * @var int
+ */
+ public $channel_id = 0;
+ /**
+ * channel_hash of the current channel of the logged-in account.
+ *
+ * @var string
+ */
+ public $channel_hash = '';
+ /**
+ * Set in mod/cloud.php to observer_hash.
+ *
+ * @var string
+ */
+ public $observer = '';
+ /**
+ *
+ * @see Browser::set_writeable()
+ * @var \Sabre\DAV\Browser\Plugin
+ */
+ public $browser;
+ /**
+ * channel_id of the current visited path. Set in Directory::getDir().
+ *
+ * @var int
+ */
+ public $owner_id = 0;
+ /**
+ * channel_name of the current visited path. Set in Directory::getDir().
+ *
+ * Used for creating the path in cloud/
+ *
+ * @var string
+ */
+ public $owner_nick = '';
+ /**
+ * Timezone from the visiting channel's channel_timezone.
+ *
+ * Used in @ref RedBrowser
+ *
+ * @var string
+ */
+ protected $timezone = '';
+
+
+ /**
+ * @brief Validates a username and password.
+ *
+ * Guest access is granted with the password "+++".
+ *
+ * @see \Sabre\DAV\Auth\Backend\AbstractBasic::validateUserPass
+ * @param string $username
+ * @param string $password
+ * @return bool
+ */
+ protected function validateUserPass($username, $password) {
+ if (trim($password) === '+++') {
+ logger('guest: ' . $username);
+ return true;
+ }
+
+ require_once('include/auth.php');
+ $record = account_verify_password($username, $password);
+ if ($record && $record['account_default_channel']) {
+ $r = q("SELECT * FROM channel WHERE channel_account_id = %d AND channel_id = %d LIMIT 1",
+ intval($record['account_id']),
+ intval($record['account_default_channel'])
+ );
+ if ($r) {
+ return $this->setAuthenticated($r[0]);
+ }
+ }
+ $r = q("SELECT * FROM channel WHERE channel_address = '%s' LIMIT 1",
+ dbesc($username)
+ );
+ if ($r) {
+ $x = q("SELECT account_flags, account_salt, account_password FROM account WHERE account_id = %d LIMIT 1",
+ intval($r[0]['channel_account_id'])
+ );
+ if ($x) {
+ // @fixme this foreach should not be needed?
+ foreach ($x as $record) {
+ if (($record['account_flags'] == ACCOUNT_OK) || ($record['account_flags'] == ACCOUNT_UNVERIFIED)
+ && (hash('whirlpool', $record['account_salt'] . $password) === $record['account_password'])) {
+ logger('password verified for ' . $username);
+ return $this->setAuthenticated($r[0]);
+ }
+ }
+ }
+ }
+
+ $error = 'password failed for ' . $username;
+ logger($error);
+ log_failed_login($error);
+
+ return false;
+ }
+
+ /**
+ * @brief Sets variables and session parameters after successfull authentication.
+ *
+ * @param array $r
+ * Array with the values for the authenticated channel.
+ * @return bool
+ */
+ protected function setAuthenticated($r) {
+ $this->channel_name = $r['channel_address'];
+ $this->channel_id = $r['channel_id'];
+ $this->channel_hash = $this->observer = $r['channel_hash'];
+ $_SESSION['uid'] = $r['channel_id'];
+ $_SESSION['account_id'] = $r['channel_account_id'];
+ $_SESSION['authenticated'] = true;
+ return true;
+ }
+
+ /**
+ * Sets the channel_name from the currently logged-in channel.
+ *
+ * @param string $name
+ * The channel's name
+ */
+ public function setCurrentUser($name) {
+ $this->channel_name = $name;
+ }
+ /**
+ * Returns information about the currently logged-in channel.
+ *
+ * If nobody is currently logged in, this method should return null.
+ *
+ * @see \Sabre\DAV\Auth\Backend\AbstractBasic::getCurrentUser
+ * @return string|null
+ */
+ public function getCurrentUser() {
+ return $this->channel_name;
+ }
+
+ /**
+ * @brief Sets the timezone from the channel in RedBasicAuth.
+ *
+ * Set in mod/cloud.php if the channel has a timezone set.
+ *
+ * @param string $timezone
+ * The channel's timezone.
+ * @return void
+ */
+ public function setTimezone($timezone) {
+ $this->timezone = $timezone;
+ }
+ /**
+ * @brief Returns the timezone.
+ *
+ * @return string
+ * Return the channel's timezone.
+ */
+ public function getTimezone() {
+ return $this->timezone;
+ }
+
+ /**
+ * @brief Set browser plugin for SabreDAV.
+ *
+ * @see RedBrowser::set_writeable()
+ * @param \Sabre\DAV\Browser\Plugin $browser
+ */
+ public function setBrowserPlugin($browser) {
+ $this->browser = $browser;
+ }
+
+ /**
+ * @brief Prints out all BasicAuth variables to logger().
+ *
+ * @return void
+ */
+ public function log() {
+ logger('channel_name ' . $this->channel_name, LOGGER_DATA);
+ logger('channel_id ' . $this->channel_id, LOGGER_DATA);
+ logger('channel_hash ' . $this->channel_hash, LOGGER_DATA);
+ logger('observer ' . $this->observer, LOGGER_DATA);
+ logger('owner_id ' . $this->owner_id, LOGGER_DATA);
+ logger('owner_nick ' . $this->owner_nick, LOGGER_DATA);
+ }
+} \ No newline at end of file