[INITIAL] Working version checks

* Check DB structure version, config file version and MPOS core version
* Added new Admin Dashboard to show this core information
* Cronjobs will be disabled if SQL files are not imported
 * SQL files must re-set the db_upgrade_required setting
* Cronjobs will disabled if config files are not updated
 * Simple config file update and version string update will fix this
* Added MPOS status overview
 * Cronjobs and Wallet information for now, others may be added later
* Added new navigation link for Admin Panel Dashboard
* Added new version file
 * Will require updates whenever DB or configs are updated
* Update SQL file that adds the DB_VERSION setting

This will address #1242 and already includes a huge chunk of changes
required to make this work.

cronjobs/shared.inc.php

@@ -64,6 +64,12 @@ if ($monitoring->isDisabled($cron_name)) {
   $monitoring->endCronjob($cron_name, 'E0018', 1, true, false);
 }
 
+// Check if we need to halt our crons due to an outstanding upgrade
+if ($setting->getValue('db_upgrade_required') == 1 || $setting->getValue('config_upgrade_required')) {
+  $log->logFatal('Cronjob is currently disabled due to required upgrades. Import any outstanding SQL files and check your configuration file.');
+  $monitoring->endCronjob($cron_name, 'E0075', 0, true, false);
+}
+
 // Mark cron as running for monitoring
 $log->logDebug('Marking cronjob as running for monitoring');
 $monitoring->setStatus($cron_name . '_starttime', 'date', time());

public/include/autoloader.inc.php

@@ -61,4 +61,7 @@ require_once(CLASS_DIR . '/api.class.php');
 require_once(INCLUDE_DIR . '/lib/Michelf/Markdown.php');
 require_once(INCLUDE_DIR . '/lib/scrypt.php');
 
+// Include our versions
+require_once(INCLUDE_DIR . '/version.inc.php');
+
 ?>

public/include/config/error_codes.inc.php

@@ -72,4 +72,5 @@ $aErrorCodes['E0065'] = 'Remaining balance is greater than 0';
 $aErrorCodes['E0072'] = 'Worker names must be alphanumeric';
 $aErrorCodes['E0073'] = 'Worker name is too long; try entering a shorter name';
 $aErrorCodes['E0074'] = 'Failed deleting expired tokens';
+$aErrorCodes['E0075'] = 'Upgrade required';
 ?>

public/include/config/global.inc.dist.php

@@ -2,6 +2,13 @@
 // Make sure we are called from index.php
 if (!defined('SECURITY')) die('Hacking attempt');
 
+/**
+ * Do not edit this unless you have confirmed that your config has been updated!
+ * This is used in the version check to ensure you run the latest version of the configuration file.
+ * Once you upgraded your config, change the version here too.
+ **/
+$config['version'] = '0.0.1';
+
 // Our include directory for additional features
 define('INCLUDE_DIR', BASEPATH . 'include');
 

public/include/pages/admin/dashboard.inc.php

@@ -0,0 +1,45 @@
+<?php
+
+// Make sure we are called from index.php
+if (!defined('SECURITY')) die('Hacking attempt');
+
+// Check user to ensure they are admin
+if (!$user->isAuthenticated() || !$user->isAdmin($_SESSION['USERDATA']['id'])) {
+  header("HTTP/1.1 404 Page not found");
+  die("404 Page not found");
+}
+
+if ($bitcoin->can_connect() === true){
+  $aGetInfo = $bitcoin->query('getinfo');
+} else {
+  $aGetInfo = array('errors' => 'Unable to connect');
+  $_SESSION['POPUP'][] = array('CONTENT' => 'Unable to connect to wallet RPC service: ' . $bitcoin->can_connect(), 'TYPE' => 'errormsg');
+}
+
+// Fetch version information
+$version['CURRENT'] = array('DB' => DB_VERSION, 'CONFIG' => CONFIG_VERSION, 'CORE' => MPOS_VERSION);
+$version['INSTALLED'] = array('DB' => $setting->getValue('DB_VERSION'), 'CONFIG' => $config['version'], 'CORE' => MPOS_VERSION);
+
+// Fetch cron information
+$aCrons = array('statistics','payouts','token_cleanup','archive_cleanup','blockupdate','findblock','notifications','tickerupdate');
+// Data array for template
+$cron_errors = 0;
+$cron_disabled = 0;
+foreach ($aCrons as $strCron) {
+  $status = $monitoring->getStatus($strCron . '_status');
+  $disabled = $monitoring->isDisabled($strCron);
+  if ($status['value'] != 0)
+    $cron_errors++;
+  if ($disabled['value'] == 1)
+    $cron_disabled++;
+}
+$smarty->assign('CRON_ERROR', $cron_errors);
+$smarty->assign('CRON_DISABLED', $cron_disabled);
+
+// Wallet status
+$smarty->assign('WALLET_ERROR', $aGetInfo['errors']);
+
+// Tempalte specifics
+$smarty->assign('VERSION', $version);
+$smarty->assign("CONTENT", "default.tpl");
+?>

public/include/version.inc.php

@@ -0,0 +1,24 @@
+<?php
+
+define('DB_VERSION', '0.0.1');
+define('CONFIG_VERSION', '0.0.1');
+define('MPOS_VERSION', '0.0.1');
+
+// Fetch installed database version
+$db_version = $setting->getValue('DB_VERSION');
+if ($db_version != DB_VERSION) {
+  $setting->setValue('db_upgrade_required', 1);
+  // Notify admins via error popup
+  if (isset($_SESSION['USERDATA']) && $user->isAdmin($_SESSION['USERDATA']['id']))
+    $_SESSION['POPUP'][] = array('CONTENT' => 'Database version mismatch (Installed: ' . $db_version . ', Current: ' . DB_VERSION . '). Database update required, please import any new SQL files. Cronjobs have been halted.', 'TYPE' => 'errormsg');
+}
+
+if (@$config['version'] != CONFIG_VERSION) {
+  $setting->setValue('config_upgrade_required', 1);
+  // Notify admins via error popup
+  if (isset($_SESSION['USERDATA']) && $user->isAdmin($_SESSION['USERDATA']['id']))
+    $_SESSION['POPUP'][] = array('CONTENT' => 'Configuration file version mismatch (Installed: ' . @$config['version'] . ', Current: ' . CONFIG_VERSION . '). Configuration update required, please check dist config for changes. Cronjobs have been halted.', 'TYPE' => 'errormsg');
+} else {
+  // Reset option, maybe there is a better way?
+  $setting->setValue('config_upgrade_required', 0);
+}

public/templates/mpos/admin/dashboard/default.tpl

@@ -0,0 +1,66 @@
+{nocache}
+<article class="module width_quarter">
+  <header><h3>MPOS Version Information</h3></header>
+  <table width="25%" class="tablesorter" cellspacing="0">
+    <thead>
+      <tr>
+        <th>Component</th>
+        <th align="center">Current</th>
+        <th align="center">Installed</th>
+      </tr>
+    </thead>
+    <tbody>
+      <tr>
+        <td><strong>MPOS</strong></td>
+        <td align="center"><font color="green">{$VERSION['CURRENT']['CORE']}</font></td>
+        <td align="center">
+          <font color="{if $VERSION['INSTALLED']['CORE'] == $VERSION['CURRENT']['CORE']}green{else}red{/if}">{$VERSION['INSTALLED']['CORE']}</font>
+        </td>
+      </tr>
+      <tr>
+        <td><strong>Config</strong></td>
+        <td align="center"><font color="green">{$VERSION['CURRENT']['CONFIG']}</font></td>
+        <td align="center">
+          <font color="{if $VERSION['INSTALLED']['CONFIG'] == $VERSION['CURRENT']['CONFIG']}green{else}red{/if}">{$VERSION['INSTALLED']['CONFIG']}</font>
+        </td>
+      </tr>
+      <tr>
+        <td><strong>Database</strong></td>
+        <td align="center"><font color="green">{$VERSION['CURRENT']['DB']}</font></td>
+        <td align="center">
+          <font color="{if $VERSION['INSTALLED']['DB'] == $VERSION['CURRENT']['DB']}green{else}red{/if}">{$VERSION['INSTALLED']['DB']}</font>
+        </td>
+      </tr>
+    </tbody>
+  </table>
+</article>
+<article class="module width_quarter">
+  <header><h3>MPOS Status</h3></header>
+  <table class="tablesorter" cellspacing="0">
+    <thead>
+      <tr>
+        <th colspan="2" align="center">Cronjobs</th>
+        <th align="center">Wallet</th>
+      </tr>
+      <tr>
+        <th align="center"><strong>Errors</strong></th>
+        <th align="center"><strong>Disabled</strong></th>
+        <th align="center"><strong>Errors</strong></th>
+      </tr>
+    </thead>
+    <tbody>
+      <tr>
+        <td align="center">
+          <a href="{$smarty.server.PHP_SELF}?page=admin&action=monitoring">{if $CRON_ERROR == 0}None - OK{else}{$CRON_ERROR}{/if}</a>
+        </td>
+        <td align="center">
+          <a href="{$smarty.server.PHP_SELF}?page=admin&action=monitoring">{if $CRON_DISABLED == 0}None - OK{else}{$CRON_DISABLED}{/if}</a>
+        </td>
+        <td align="center">
+          <a href="{$smarty.server.PHP_SELF}?page=admin&action=wallet">{$WALLET_ERROR|default:"None - OK"}</a>
+        </td>
+      </tr>
+    </tbody>
+  </table>
+</article>
+{/nocache}

public/templates/mpos/global/navigation.tpl

@@ -16,6 +16,7 @@
     {if $smarty.session.AUTHENTICATED|default:"0" == 1 && $GLOBAL.userdata.is_admin == 1}
     <h3>Admin Panel</h3>
     <ul class="toggle">
+      <li class="icon-gauge"><a href="{$smarty.server.PHP_SELF}?page=admin&action=dashboard">Dashboard</a></li>
       <li class="icon-bell"><a href="{$smarty.server.PHP_SELF}?page=admin&action=monitoring">Monitoring</a></li>
       <li class="icon-torso"><a href="{$smarty.server.PHP_SELF}?page=admin&action=user">User Info</a></li>
       <li class="icon-money"><a href="{$smarty.server.PHP_SELF}?page=admin&action=wallet">Wallet Info</a></li>

sql/000_base_structure.sql

@@ -99,6 +99,8 @@ CREATE TABLE IF NOT EXISTS `notification_settings` (
   PRIMARY KEY (`id`)
 ) ENGINE=InnoDB  DEFAULT CHARSET=utf8;
 
+INSERT INTO `settings` (`name`, `value`) VALUES ('DB_VERSION', '0.0.1');
+
 CREATE TABLE IF NOT EXISTS `payouts` (
   `id` int(11) NOT NULL AUTO_INCREMENT,
   `account_id` int(11) NOT NULL,

sql/012_db_version.sql

@@ -0,0 +1,2 @@
+INSERT INTO `settings` (`name`, `value`) VALUES ('DB_VERSION', '0.0.1') ON DUPLICATE KEY UPDATE `value` = '0.0.1';
+INSERT INTO `settings` (`name`, `value`) VALUES ('db_upgrade_required', 0) ON DUPLICATE KEY UPDATE `value` = 0;