phpmyadmin working

1 files changed, 602 insertions, 0 deletions

diff --git a/srcs/phpmyadmin/libraries/classes/ReplicationGui.php b/srcs/phpmyadmin/libraries/classes/ReplicationGui.php
new file mode 100644
index 0000000..a6cbf58
--- /dev/null
+++ b/srcs/phpmyadmin/libraries/classes/ReplicationGui.php
@@ -0,0 +1,602 @@
+<?php
+/* vim: set expandtab sw=4 ts=4 sts=4: */
+/**
+ * Functions for the replication GUI
+ *
+ * @package PhpMyAdmin
+ */
+declare(strict_types=1);
+
+namespace PhpMyAdmin;
+
+/**
+ * Functions for the replication GUI
+ *
+ * @package PhpMyAdmin
+ */
+class ReplicationGui
+{
+    /**
+     * @var Replication
+     */
+    private $replication;
+
+    /**
+     * @var Template
+     */
+    private $template;
+
+    /**
+     * ReplicationGui constructor.
+     *
+     * @param Replication $replication Replication instance
+     * @param Template    $template    Template instance
+     */
+    public function __construct(Replication $replication, Template $template)
+    {
+        $this->replication = $replication;
+        $this->template = $template;
+    }
+
+    /**
+     * returns HTML for error message
+     *
+     * @return string HTML code
+     */
+    public function getHtmlForErrorMessage()
+    {
+        $html = '';
+        if (isset($_SESSION['replication']['sr_action_status'])
+            && isset($_SESSION['replication']['sr_action_info'])
+        ) {
+            if ($_SESSION['replication']['sr_action_status'] == 'error') {
+                $error_message = $_SESSION['replication']['sr_action_info'];
+                $html .= Message::error($error_message)->getDisplay();
+                $_SESSION['replication']['sr_action_status'] = 'unknown';
+            } elseif ($_SESSION['replication']['sr_action_status'] == 'success') {
+                $success_message = $_SESSION['replication']['sr_action_info'];
+                $html .= Message::success($success_message)->getDisplay();
+                $_SESSION['replication']['sr_action_status'] = 'unknown';
+            }
+        }
+        return $html;
+    }
+
+    /**
+     * returns HTML for master replication
+     *
+     * @return string HTML code
+     */
+    public function getHtmlForMasterReplication()
+    {
+        if (! isset($_POST['repl_clear_scr'])) {
+            $masterStatusTable = $this->getHtmlForReplicationStatusTable('master', true, false);
+            $slaves = $GLOBALS['dbi']->fetchResult('SHOW SLAVE HOSTS', null, null);
+
+            $urlParams = $GLOBALS['url_params'];
+            $urlParams['mr_adduser'] = true;
+            $urlParams['repl_clear_scr'] = true;
+        }
+
+        if (isset($_POST['mr_adduser'])) {
+            $masterAddSlaveUser = $this->getHtmlForReplicationMasterAddSlaveUser();
+        }
+
+        return $this->template->render('server/replication/master_replication', [
+            'clear_screen' => isset($_POST['repl_clear_scr']),
+            'master_status_table' => $masterStatusTable ?? '',
+            'slaves' => $slaves ?? [],
+            'url_params' => $urlParams ?? [],
+            'master_add_user' => isset($_POST['mr_adduser']),
+            'master_add_slave_user' => $masterAddSlaveUser ?? '',
+        ]);
+    }
+
+    /**
+     * returns HTML for master replication configuration
+     *
+     * @return string HTML code
+     */
+    public function getHtmlForMasterConfiguration()
+    {
+        $databaseMultibox = $this->getHtmlForReplicationDbMultibox();
+
+        return $this->template->render('server/replication/master_configuration', [
+            'database_multibox' => $databaseMultibox,
+        ]);
+    }
+
+    /**
+     * returns HTML for slave replication configuration
+     *
+     * @param bool  $serverSlaveStatus      Whether it is Master or Slave
+     * @param array $serverSlaveReplication Slave replication
+     *
+     * @return string HTML code
+     */
+    public function getHtmlForSlaveConfiguration(
+        $serverSlaveStatus,
+        array $serverSlaveReplication
+    ) {
+        $serverSlaveMultiReplication = $GLOBALS['dbi']->fetchResult(
+            'SHOW ALL SLAVES STATUS'
+        );
+        if ($serverSlaveStatus) {
+            $urlParams = $GLOBALS['url_params'];
+            $urlParams['sr_take_action'] = true;
+            $urlParams['sr_slave_server_control'] = true;
+
+            if ($serverSlaveReplication[0]['Slave_IO_Running'] == 'No') {
+                $urlParams['sr_slave_action'] = 'start';
+            } else {
+                $urlParams['sr_slave_action'] = 'stop';
+            }
+
+            $urlParams['sr_slave_control_parm'] = 'IO_THREAD';
+            $slaveControlIoLink = Url::getCommon($urlParams, '');
+
+            if ($serverSlaveReplication[0]['Slave_SQL_Running'] == 'No') {
+                $urlParams['sr_slave_action'] = 'start';
+            } else {
+                $urlParams['sr_slave_action'] = 'stop';
+            }
+
+            $urlParams['sr_slave_control_parm'] = 'SQL_THREAD';
+            $slaveControlSqlLink = Url::getCommon($urlParams, '');
+
+            if ($serverSlaveReplication[0]['Slave_IO_Running'] == 'No'
+                || $serverSlaveReplication[0]['Slave_SQL_Running'] == 'No'
+            ) {
+                $urlParams['sr_slave_action'] = 'start';
+            } else {
+                $urlParams['sr_slave_action'] = 'stop';
+            }
+
+            $urlParams['sr_slave_control_parm'] = null;
+            $slaveControlFullLink = Url::getCommon($urlParams, '');
+
+            $urlParams['sr_slave_action'] = 'reset';
+            $slaveControlResetLink = Url::getCommon($urlParams, '');
+
+            $urlParams = $GLOBALS['url_params'];
+            $urlParams['sr_take_action'] = true;
+            $urlParams['sr_slave_skip_error'] = true;
+            $slaveSkipErrorLink = Url::getCommon($urlParams, '');
+
+            $urlParams = $GLOBALS['url_params'];
+            $urlParams['sl_configure'] = true;
+            $urlParams['repl_clear_scr'] = true;
+
+            $reconfigureMasterLink =  Url::getCommon($urlParams, '');
+
+            $slaveStatusTable = $this->getHtmlForReplicationStatusTable('slave', true, false);
+
+            $slaveIoRunning = $serverSlaveReplication[0]['Slave_IO_Running'] !== 'No';
+            $slaveSqlRunning = $serverSlaveReplication[0]['Slave_SQL_Running'] !== 'No';
+        }
+
+        return $this->template->render('server/replication/slave_configuration', [
+            'server_slave_multi_replication' => $serverSlaveMultiReplication,
+            'url_params' => $GLOBALS['url_params'],
+            'master_connection' => $_POST['master_connection'] ?? '',
+            'server_slave_status' => $serverSlaveStatus,
+            'slave_status_table' => $slaveStatusTable ?? '',
+            'slave_sql_running' => $slaveSqlRunning ?? false,
+            'slave_io_running' => $slaveIoRunning ?? false,
+            'slave_control_full_link' => $slaveControlFullLink ?? '',
+            'slave_control_reset_link' => $slaveControlResetLink ?? '',
+            'slave_control_sql_link' => $slaveControlSqlLink ?? '',
+            'slave_control_io_link' => $slaveControlIoLink ?? '',
+            'slave_skip_error_link' => $slaveSkipErrorLink ?? '',
+            'reconfigure_master_link' => $reconfigureMasterLink ?? '',
+            'has_slave_configure' => isset($_POST['sl_configure']),
+        ]);
+    }
+
+    /**
+     * returns HTML code for selecting databases
+     *
+     * @return string HTML code
+     */
+    public function getHtmlForReplicationDbMultibox()
+    {
+        $databases = [];
+        foreach ($GLOBALS['dblist']->databases as $database) {
+            if (! $GLOBALS['dbi']->isSystemSchema($database)) {
+                $databases[] = $database;
+            }
+        }
+
+        return $this->template->render('server/replication/database_multibox', [
+            'databases' => $databases,
+        ]);
+    }
+
+    /**
+     * returns HTML for changing master
+     *
+     * @param string $submitName submit button name
+     *
+     * @return string HTML code
+     */
+    public function getHtmlForReplicationChangeMaster($submitName)
+    {
+        list(
+            $usernameLength,
+            $hostnameLength
+        ) = $this->getUsernameHostnameLength();
+
+        return $this->template->render('server/replication/change_master', [
+            'server_id' => time(),
+            'username_length' => $usernameLength,
+            'hostname_length' => $hostnameLength,
+            'submit_name' => $submitName,
+        ]);
+    }
+
+    /**
+     * This function returns html code for table with replication status.
+     *
+     * @param string  $type     either master or slave
+     * @param boolean $isHidden if true, then default style is set to hidden,
+     *                          default value false
+     * @param boolean $hasTitle if true, then title is displayed, default true
+     *
+     * @return string HTML code
+     */
+    public function getHtmlForReplicationStatusTable(
+        $type,
+        $isHidden = false,
+        $hasTitle = true
+    ): string {
+        global $master_variables, $slave_variables;
+        global $master_variables_alerts, $slave_variables_alerts;
+        global $master_variables_oks, $slave_variables_oks;
+        global $server_master_replication, $server_slave_replication;
+
+        $replicationVariables = $master_variables;
+        $variablesAlerts = $master_variables_alerts;
+        $variablesOks = $master_variables_oks;
+        $serverReplication = $server_master_replication;
+        if ($type === 'slave') {
+            $replicationVariables = $slave_variables;
+            $variablesAlerts = $slave_variables_alerts;
+            $variablesOks = $slave_variables_oks;
+            $serverReplication = $server_slave_replication;
+        }
+
+        $variables = [];
+        foreach ($replicationVariables as $variable) {
+            $serverReplicationVariable = is_array($serverReplication) && isset($serverReplication[0]) ? $serverReplication[0][$variable] : '';
+
+            $variables[$variable] = [
+                'name' => $variable,
+                'status' => '',
+                'value' => $serverReplicationVariable,
+            ];
+
+            if (isset($variablesAlerts[$variable])
+                && $variablesAlerts[$variable] === $serverReplicationVariable
+            ) {
+                $variables[$variable]['status'] = 'attention';
+            } elseif (isset($variablesOks[$variable])
+                && $variablesOks[$variable] === $serverReplicationVariable
+            ) {
+                $variables[$variable]['status'] = 'allfine';
+            }
+
+            $variablesWrap = [
+                'Replicate_Do_DB',
+                'Replicate_Ignore_DB',
+                'Replicate_Do_Table',
+                'Replicate_Ignore_Table',
+                'Replicate_Wild_Do_Table',
+                'Replicate_Wild_Ignore_Table',
+            ];
+            if (in_array($variable, $variablesWrap)) {
+                $variables[$variable]['value'] = str_replace(
+                    ',',
+                    ', ',
+                    $serverReplicationVariable
+                );
+            }
+        }
+
+        return $this->template->render('server/replication/status_table', [
+            'type' => $type,
+            'is_hidden' => $isHidden,
+            'has_title' => $hasTitle,
+            'variables' => $variables,
+        ]);
+    }
+
+    /**
+     * get the correct username and hostname lengths for this MySQL server
+     *
+     * @return array   username length, hostname length
+     */
+    public function getUsernameHostnameLength()
+    {
+        $fields_info = $GLOBALS['dbi']->getColumns('mysql', 'user');
+        $username_length = 16;
+        $hostname_length = 41;
+        foreach ($fields_info as $val) {
+            if ($val['Field'] == 'User') {
+                strtok($val['Type'], '()');
+                $v = strtok('()');
+                if (is_int($v)) {
+                    $username_length = $v;
+                }
+            } elseif ($val['Field'] == 'Host') {
+                strtok($val['Type'], '()');
+                $v = strtok('()');
+                if (is_int($v)) {
+                    $hostname_length = $v;
+                }
+            }
+        }
+        return [
+            $username_length,
+            $hostname_length,
+        ];
+    }
+
+    /**
+     * returns html code to add a replication slave user to the master
+     *
+     * @return string HTML code
+     */
+    public function getHtmlForReplicationMasterAddSlaveUser()
+    {
+        list(
+            $usernameLength,
+            $hostnameLength
+        ) = $this->getUsernameHostnameLength();
+
+        if (isset($_POST['username']) && strlen($_POST['username']) === 0) {
+            $GLOBALS['pred_username'] = 'any';
+        }
+
+        $username = '';
+        if (! empty($_POST['username'])) {
+            $username = $GLOBALS['new_username'] ?? $_POST['username'];
+        }
+
+        $currentUser = $GLOBALS['dbi']->fetchValue('SELECT USER();');
+        if (! empty($currentUser)) {
+            $userHost = str_replace(
+                "'",
+                '',
+                mb_substr(
+                    $currentUser,
+                    mb_strrpos($currentUser, '@') + 1
+                )
+            );
+            if ($userHost !== 'localhost' && $userHost !== '127.0.0.1') {
+                $thisHost = $userHost;
+            }
+        }
+
+        // when we start editing a user, $GLOBALS['pred_hostname'] is not defined
+        if (! isset($GLOBALS['pred_hostname']) && isset($_POST['hostname'])) {
+            switch (mb_strtolower($_POST['hostname'])) {
+                case 'localhost':
+                case '127.0.0.1':
+                    $GLOBALS['pred_hostname'] = 'localhost';
+                    break;
+                case '%':
+                    $GLOBALS['pred_hostname'] = 'any';
+                    break;
+                default:
+                    $GLOBALS['pred_hostname'] = 'userdefined';
+                    break;
+            }
+        }
+
+        return $this->template->render('server/replication/master_add_slave_user', [
+            'username_length' => $usernameLength,
+            'hostname_length' => $hostnameLength,
+            'has_username' => isset($_POST['username']),
+            'username' => $username,
+            'hostname' => $_POST['hostname'] ?? '',
+            'predefined_username' => $GLOBALS['pred_username'] ?? '',
+            'predefined_hostname' => $GLOBALS['pred_hostname'] ?? '',
+            'this_host' => $thisHost ?? null,
+        ]);
+    }
+
+    /**
+     * handle control requests
+     *
+     * @return void
+     */
+    public function handleControlRequest()
+    {
+        if (isset($_POST['sr_take_action'])) {
+            $refresh = false;
+            $result = false;
+            $messageSuccess = null;
+            $messageError = null;
+
+            if (isset($_POST['slave_changemaster']) && ! $GLOBALS['cfg']['AllowArbitraryServer']) {
+                $_SESSION['replication']['sr_action_status'] = 'error';
+                $_SESSION['replication']['sr_action_info'] = __('Connection to server is disabled, please enable $cfg[\'AllowArbitraryServer\'] in phpMyAdmin configuration.');
+            } elseif (isset($_POST['slave_changemaster'])) {
+                $result = $this->handleRequestForSlaveChangeMaster();
+            } elseif (isset($_POST['sr_slave_server_control'])) {
+                $result = $this->handleRequestForSlaveServerControl();
+                $refresh = true;
+
+                switch ($_POST['sr_slave_action']) {
+                    case 'start':
+                        $messageSuccess = __('Replication started successfully.');
+                        $messageError = __('Error starting replication.');
+                        break;
+                    case 'stop':
+                        $messageSuccess = __('Replication stopped successfully.');
+                        $messageError = __('Error stopping replication.');
+                        break;
+                    case 'reset':
+                        $messageSuccess = __('Replication resetting successfully.');
+                        $messageError = __('Error resetting replication.');
+                        break;
+                    default:
+                        $messageSuccess = __('Success.');
+                        $messageError = __('Error.');
+                        break;
+                }
+            } elseif (isset($_POST['sr_slave_skip_error'])) {
+                $result = $this->handleRequestForSlaveSkipError();
+            }
+
+            if ($refresh) {
+                $response = Response::getInstance();
+                if ($response->isAjax()) {
+                    $response->setRequestStatus($result);
+                    $response->addJSON(
+                        'message',
+                        $result
+                        ? Message::success($messageSuccess)
+                        : Message::error($messageError)
+                    );
+                } else {
+                    Core::sendHeaderLocation(
+                        './server_replication.php'
+                        . Url::getCommonRaw($GLOBALS['url_params'])
+                    );
+                }
+            }
+            unset($refresh);
+        }
+    }
+
+    /**
+     * handle control requests for Slave Change Master
+     *
+     * @return boolean
+     */
+    public function handleRequestForSlaveChangeMaster()
+    {
+        $sr = [];
+        $_SESSION['replication']['m_username'] = $sr['username']
+            = $GLOBALS['dbi']->escapeString($_POST['username']);
+        $_SESSION['replication']['m_password'] = $sr['pma_pw']
+            = $GLOBALS['dbi']->escapeString($_POST['pma_pw']);
+        $_SESSION['replication']['m_hostname'] = $sr['hostname']
+            = $GLOBALS['dbi']->escapeString($_POST['hostname']);
+        $_SESSION['replication']['m_port']     = $sr['port']
+            = $GLOBALS['dbi']->escapeString($_POST['text_port']);
+        $_SESSION['replication']['m_correct']  = '';
+        $_SESSION['replication']['sr_action_status'] = 'error';
+        $_SESSION['replication']['sr_action_info'] = __('Unknown error');
+
+        // Attempt to connect to the new master server
+        $link_to_master = $this->replication->connectToMaster(
+            $sr['username'],
+            $sr['pma_pw'],
+            $sr['hostname'],
+            $sr['port']
+        );
+
+        if (! $link_to_master) {
+            $_SESSION['replication']['sr_action_status'] = 'error';
+            $_SESSION['replication']['sr_action_info'] = sprintf(
+                __('Unable to connect to master %s.'),
+                htmlspecialchars($sr['hostname'])
+            );
+        } else {
+            // Read the current master position
+            $position = $this->replication->slaveBinLogMaster($link_to_master);
+
+            if (empty($position)) {
+                $_SESSION['replication']['sr_action_status'] = 'error';
+                $_SESSION['replication']['sr_action_info']
+                    = __(
+                        'Unable to read master log position. '
+                        . 'Possible privilege problem on master.'
+                    );
+            } else {
+                $_SESSION['replication']['m_correct']  = true;
+
+                if (! $this->replication->slaveChangeMaster(
+                    $sr['username'],
+                    $sr['pma_pw'],
+                    $sr['hostname'],
+                    $sr['port'],
+                    $position,
+                    true,
+                    false
+                )
+                ) {
+                    $_SESSION['replication']['sr_action_status'] = 'error';
+                    $_SESSION['replication']['sr_action_info']
+                        = __('Unable to change master!');
+                } else {
+                    $_SESSION['replication']['sr_action_status'] = 'success';
+                    $_SESSION['replication']['sr_action_info'] = sprintf(
+                        __('Master server changed successfully to %s.'),
+                        htmlspecialchars($sr['hostname'])
+                    );
+                }
+            }
+        }
+
+        return $_SESSION['replication']['sr_action_status'] === 'success';
+    }
+
+    /**
+     * handle control requests for Slave Server Control
+     *
+     * @return boolean
+     */
+    public function handleRequestForSlaveServerControl()
+    {
+        if (empty($_POST['sr_slave_control_parm'])) {
+            $_POST['sr_slave_control_parm'] = null;
+        }
+        if ($_POST['sr_slave_action'] == 'reset') {
+            $qStop = $this->replication->slaveControl("STOP", null, DatabaseInterface::CONNECT_USER);
+            $qReset = $GLOBALS['dbi']->tryQuery("RESET SLAVE;");
+            $qStart = $this->replication->slaveControl("START", null, DatabaseInterface::CONNECT_USER);
+
+            $result = ($qStop !== false && $qStop !== -1 &&
+                $qReset !== false && $qReset !== -1 &&
+                $qStart !== false && $qStart !== -1);
+        } else {
+            $qControl = $this->replication->slaveControl(
+                $_POST['sr_slave_action'],
+                $_POST['sr_slave_control_parm'],
+                DatabaseInterface::CONNECT_USER
+            );
+
+            $result = ($qControl !== false && $qControl !== -1);
+        }
+
+        return $result;
+    }
+
+    /**
+     * handle control requests for Slave Skip Error
+     *
+     * @return boolean
+     */
+    public function handleRequestForSlaveSkipError()
+    {
+        $count = 1;
+        if (isset($_POST['sr_skip_errors_count'])) {
+            $count = $_POST['sr_skip_errors_count'] * 1;
+        }
+
+        $qStop = $this->replication->slaveControl("STOP", null, DatabaseInterface::CONNECT_USER);
+        $qSkip = $GLOBALS['dbi']->tryQuery(
+            "SET GLOBAL SQL_SLAVE_SKIP_COUNTER = " . $count . ";"
+        );
+        $qStart = $this->replication->slaveControl("START", null, DatabaseInterface::CONNECT_USER);
+
+        $result = ($qStop !== false && $qStop !== -1 &&
+            $qSkip !== false && $qSkip !== -1 &&
+            $qStart !== false && $qStart !== -1);
+
+        return $result;
+    }
+}