run: check module dependencies

fixes  #1938

application/controllers/PhperrorController.php

@@ -2,6 +2,7 @@
 
 namespace Icinga\Module\Director\Controllers;
 
+use Icinga\Application\Icinga;
 use Icinga\Web\Controller;
 
 class PhperrorController extends Controller
@@ -19,4 +20,20 @@ class PhperrorController extends Controller
         $this->view->title = $this->translate('Unsatisfied dependencies');
         $this->view->message = sprintf($msg, PHP_VERSION);
     }
+
+    public function dependenciesAction()
+    {
+        $this->setAutorefreshInterval(15);
+        $this->view->dependencies = $this->Module()->getDependencies();
+        $this->view->modules = Icinga::app()->getModuleManager();
+        $this->getTabs()->add('error', array(
+            'label' => $this->translate('Error'),
+            'url'   => $this->getRequest()->getUrl()
+        ))->activate('error');
+        $msg = $this->translate(
+            "Icinga Director depends on the following modules, please install/upgrade as required"
+        );
+        $this->view->title = $this->translate('Unsatisfied dependencies');
+        $this->view->message = sprintf($msg, PHP_VERSION);
+    }
 }

application/views/scripts/phperror/dependencies.phtml

@@ -0,0 +1,71 @@
+<?php
+
+use Icinga\Application\Modules\Manager;
+
+?>
+<div class="controls">
+<?= $this->tabs ?>
+<h1><?= $this->escape($this->title) ?></h1>
+</div>
+
+<div class="content">
+<p class="error"><?= $this->escape($this->message) ?></p>
+<table class="common-table table-row-selectable">
+<thead>
+<tr>
+    <th><?= $this->translate('Module name') ?></th>
+    <th><?= $this->translate('Required') ?></th>
+    <th><?= $this->translate('Installed') ?></th>
+</tr>
+</thead>
+<tbody data-base-target="_next">
+<?php
+
+foreach ($this->dependencies as $module => $required) {
+    /** @var Manager $this->modules */
+    if ($modules->hasEnabled($module)) {
+        $installed = $modules->getModule($module, false)->getVersion();
+        $installed = \ltrim($installed, 'v'); // v0.6.0 VS 0.6.0
+        if (\preg_match('/^([<>=]+)\s*v?(\d+\.\d+\.\d+)$/', $required, $match)) {
+            $operator = $match[1];
+            $vRequired = $match[2];
+            if (\version_compare($installed, $vRequired, $operator)) {
+                $icon = 'ok';
+            } else {
+                $icon = 'cancel';
+            }
+        } else {
+            $icon = 'cancel';
+        }
+        $link = $this->qlink(
+                $module,
+                'config/module',
+                ['name' => $module],
+                ['class' => "icon-$icon"]
+        );
+    } elseif ($modules->hasInstalled($module)) {
+        $installed = $this->translate('disabled');
+        $link = $this->qlink($module, 'config/module', ['name' => $module], ['class' => 'icon-cancel']);
+    } else {
+        $installed = $this->translate('missing');
+        $link = sprintf(
+            '<a href="#" class="icon-cancel">%s</a> (<a href="https://github.com/Icinga/icingaweb2-module-%s"'
+            . ' target="_blank" rel="noreferrer">%s</a>)',
+            $this->escape($module),
+            $this->escape($module),
+            $this->translate('more')
+        );
+    }
+
+    \printf(
+        '<tr><td>%s</a></td><td>%s</td><td>%s</td></tr>',
+        $link,
+        $this->escape($required),
+        $this->escape($installed)
+    );
+}
+
+?>
+</tbody>
+</table>
+</div>

module.info

@@ -1,6 +1,6 @@
 Name: Icinga Director
 Version: master
-Depends: monitoring
+Depends: reactbundle (>=0.6.0), ipl (>=0.3.0), incubator (>=0.3.0)
 Description: Director - Config tool for Icinga 2
  Icinga Director is a configuration tool that has been designed to make
  Icinga 2 configuration easy and understandable.

run-missingdeps.php

@@ -0,0 +1,23 @@
+<?php
+
+use Icinga\Application\Icinga;
+use Icinga\Exception\IcingaException;
+use Icinga\Web\Url;
+
+if (Icinga::app()->isCli()) {
+    throw new IcingaException(
+        "Missing dependencies, please check "
+    );
+} else {
+    $request = Icinga::app()->getRequest();
+    $path = $request->getPathInfo();
+    if (! preg_match('#^/director#', $path)) {
+        return;
+    }
+    if (preg_match('#^/director/phperror/dependencies#', $path)) {
+        return;
+    }
+
+    header('Location: ' . Url::fromPath('director/phperror/dependencies'));
+    exit;
+}

run.php

@@ -65,3 +65,20 @@ $this->provideHook('cube/Actions', 'CubeLinks');
 
 require_once __DIR__ . '/library/vendor/ipl/Loader/CompatLoader.php';
 CompatLoader::delegateLoadingToIcingaWeb($this->app);
+
+$modules = $this->app->getModuleManager();
+foreach ($this->getDependencies() as $module => $required) {
+    if ($modules->hasEnabled($module)) {
+        $installed = $modules->getModule($module, false)->getVersion();
+        $installed = \ltrim($installed, 'v'); // v0.6.0 VS 0.6.0
+        if (preg_match('/^([<>=]+)\s*v?(\d+\.\d+\.\d+)$/', $required, $match)) {
+            $operator = $match[1];
+            $vRequired = $match[2];
+            if (\version_compare($installed, $vRequired, $operator)) {
+                continue;
+            }
+        }
+        include __DIR__ . '/run-missingdeps.php';
+        return;
+    }
+}