Imported Node: Don't break view if source config file is faulty

library/Businessprocess/BpConfig.php

@@ -130,6 +130,9 @@ class BpConfig
     /** @var ProcessChanges */
     protected $appliedChanges;
 
+    /** @var bool Whether the config is faulty */
+    protected $isFaulty = false;
+
     public function __construct()
     {
     }
@@ -577,7 +580,13 @@ class BpConfig
     public function getImportedConfig($name)
     {
         if (! isset($this->importedConfigs[$name])) {
-            $import = $this->storage()->loadProcess($name);
+            try {
+                $import = $this->storage()->loadProcess($name);
+            } catch (Exception $e) {
+                $import = (new static())
+                    ->setName($name)
+                    ->setFaulty();
+            }
 
             if ($this->usesSoftStates()) {
                 $import->useSoftStates();
@@ -687,9 +696,17 @@ class BpConfig
     {
         if ($this->hasBpNode($name)) {
             return $this->nodes[$name];
-        } else {
-            throw new NotFoundError('Trying to access a missing business process node "%s"', $name);
         }
+
+        $msg = $this->isFaulty()
+            ? sprintf(
+                t('Trying to import node "%s" from faulty config file "%s.conf"'),
+                $name,
+                $this->getName()
+            )
+            : sprintf(t('Trying to access a missing business process node "%s"'), $name);
+
+        throw new NotFoundError($msg);
     }
 
     /**
@@ -1070,4 +1087,28 @@ class BpConfig
 
         return array_pad($parts, 2, null);
     }
+
+    /**
+     * Set whether the config is faulty
+     *
+     * @param bool $isFaulty
+     *
+     * @return $this
+     */
+    public function setFaulty(bool $isFaulty = true): self
+    {
+        $this->isFaulty = $isFaulty;
+
+        return $this;
+    }
+
+    /**
+     * Get whether the config is faulty
+     *
+     * @return bool
+     */
+    public function isFaulty(): bool
+    {
+        return $this->isFaulty;
+    }
 }

library/Businessprocess/ImportedNode.php

@@ -90,6 +90,15 @@ class ImportedNode extends BpNode
         return $this->childNames;
     }
 
+    public function isMissing()
+    {
+        if ($this->missing === null && $this->getBpConfig()->isFaulty()) {
+            $this->missing = true;
+        }
+
+        return parent::isMissing();
+    }
+
     /**
      * @return BpNode
      */
@@ -121,10 +130,9 @@ class ImportedNode extends BpNode
         ));
         $node->setBpConfig($this->getBpConfig());
         $node->setState(2);
-        $node->setMissing(false)
+        $node->setMissing()
             ->setDowntime(false)
-            ->setAck(false)
-            ->setAlias($e->getMessage());
+            ->setAck(false);
 
         return $node;
     }

library/Businessprocess/Renderer/TileRenderer/NodeTile.php

@@ -12,6 +12,7 @@ use Icinga\Web\Url;
 use ipl\Html\BaseHtmlElement;
 use ipl\Html\Html;
 use ipl\Web\Widget\Icon;
+use ipl\Web\Widget\Link;
 use ipl\Web\Widget\StateBall;
 
 class NodeTile extends BaseHtmlElement
@@ -102,11 +103,7 @@ class NodeTile extends BaseHtmlElement
 
             $this->add($link);
         } else {
-            $this->add(Html::tag(
-                'span',
-                ['class' => 'missing-node-msg'],
-                sprintf('Trying to access a missing business process node "%s"', $node->getNodeName())
-            ));
+            $this->add(new Link($node->getAlias(), $this->getMainNodeUrl($node)->getAbsoluteUrl()));
         }
 
         if ($this->renderer->rendersSubNode()
@@ -210,12 +207,15 @@ class NodeTile extends BaseHtmlElement
                 new Icon('sitemap')
             ));
             if ($node instanceof ImportedNode) {
-                if ($node->getBpConfig()->hasNode($node->getName())) {
+                $bpConfig = $node->getBpConfig();
+                if ($bpConfig->isFaulty() || $bpConfig->hasNode($node->getName())) {
                     $this->actions()->add(Html::tag(
                         'a',
                         [
                             'data-base-target'  => '_next',
-                            'href'              => $this->renderer->getSourceUrl($node)->getAbsoluteUrl(),
+                            'href'              => $bpConfig->isFaulty()
+                                ? $this->renderer->getBaseUrl()->setParam('config', $bpConfig->getName())
+                                : $this->renderer->getSourceUrl($node)->getAbsoluteUrl(),
                             'title'             => mt(
                                 'businessprocess',
                                 'Show this process as part of its original configuration'

library/Businessprocess/Renderer/TreeRenderer.php

@@ -234,7 +234,9 @@ class TreeRenderer extends Renderer
         } elseif ($differentConfig) {
             $summary->add($this->actionIcon(
                 'share',
-                $this->getSourceUrl($node)->addParams(['mode' => 'tree'])->getAbsoluteUrl(),
+                $node->getBpConfig()->isFaulty()
+                    ? $this->getBaseUrl()->setParam('config', $node->getBpConfig()->getName())
+                    : $this->getSourceUrl($node)->addParams(['mode' => 'tree'])->getAbsoluteUrl(),
                 mt('businessprocess', 'Show this process as part of its original configuration')
             )->addAttributes(['data-base-target' => '_next']));
         }

public/css/module.less

@@ -481,8 +481,7 @@ td > a > .state-badges {
         border: 1px solid @body-bg-color;
     }
 
-    > a,
-    .missing-node-msg {
+    > a {
         display: block;
         text-decoration: none;
         font-size: 0.7em;
@@ -492,10 +491,6 @@ td > a > .state-badges {
         word-wrap: break-word;
     }
 
-    .missing-node-msg {
-        font-size: 0.5em;
-    }
-
     &:hover {
         box-shadow: 0 0 .2em @gray;
     }