Add metadata converter to admin module

modules/admin/lib/FederationController.php

@@ -11,6 +11,10 @@ use SimpleSAML\Module\saml\IdP\SAML1 as SAML1_IdP;
 use SimpleSAML\Module\saml\IdP\SAML2 as SAML2_IdP;
 use SimpleSAML\Utils\Auth;
 
+use SimpleSAML\HTTP\RunnableResponse;
+use SimpleSAML\Utils\HTTP;
+use Symfony\Component\HttpFoundation\Request;
+
 /**
  * Controller class for the admin module.
  *
@@ -371,4 +375,70 @@ class FederationController
 
         return $entities;
     }
+
+    /**
+     * Metadata converter
+     *
+     * @param Request $request The current request.
+     *
+     * @return \SimpleSAML\XHTML\Template
+     */
+    public function metadataConverter(Request $request)
+    {
+        \SimpleSAML\Utils\Auth::requireAdmin();
+
+        if ($xmlfile = $request->files->get('xmlfile')) {
+            $xmldata = trim(file_get_contents($xmlfile));
+        } elseif ($xmldata = $request->request->get('xmldata')) {
+            $xmldata = trim($xmldata);
+        }
+
+        if (!empty($xmldata)) {
+            \SimpleSAML\Utils\XML::checkSAMLMessage($xmldata, 'saml-meta');
+            $entities = \SimpleSAML\Metadata\SAMLParser::parseDescriptorsString($xmldata);
+
+            // get all metadata for the entities
+            foreach ($entities as &$entity) {
+                $entity = [
+                    'shib13-sp-remote'  => $entity->getMetadata1xSP(),
+                    'shib13-idp-remote' => $entity->getMetadata1xIdP(),
+                    'saml20-sp-remote'  => $entity->getMetadata20SP(),
+                    'saml20-idp-remote' => $entity->getMetadata20IdP(),
+                ];
+            }
+
+            // transpose from $entities[entityid][type] to $output[type][entityid]
+            $output = \SimpleSAML\Utils\Arrays::transpose($entities);
+
+            // merge all metadata of each type to a single string which should be added to the corresponding file
+            foreach ($output as $type => &$entities) {
+                $text = '';
+                foreach ($entities as $entityId => $entityMetadata) {
+                    if ($entityMetadata === null) {
+                        continue;
+                    }
+
+                    // remove the entityDescriptor element because it is unused, and only makes the output harder to read
+                    unset($entityMetadata['entityDescriptor']);
+
+                    $text .= '$metadata['.var_export($entityId, true).'] = '.
+                        var_export($entityMetadata, true).";\n";
+                }
+                $entities = $text;
+            }
+        } else {
+            $xmldata = '';
+            $output = [];
+        }
+
+        $t = new \SimpleSAML\XHTML\Template($this->config, 'admin:metadata_converter.twig');
+        $t->data = [
+            'logouturl' => \SimpleSAML\Utils\Auth::getAdminLogoutURL(),
+            'xmldata' => $xmldata,
+            'output' => $output,
+        ];
+
+        $this->menu->addOption('logout', \SimpleSAML\Utils\Auth::getAdminLogoutURL(), Translate::noop('Log out'));
+        return $this->menu->insert($t);
+    }
 }

modules/admin/routes.yaml

@@ -13,3 +13,6 @@ admin-test:
 admin-fed:
     path:       /federation
     defaults:   { _controller: 'SimpleSAML\Module\admin\FederationController::main' }
+admin-fed-converter:
+    path:       /metadata-converter
+    defaults:   { _controller: 'SimpleSAML\Module\admin\FederationController::metadataConverter' }

modules/admin/templates/metadata_converter.twig

+{% set pagetitle = 'Metadata parser'|trans %}
+{% set frontpage_section = 'federation' %}
+{% extends "base.twig" %}
+
+{%  set i=1 %}
+{% block content %}
+    {%- include "@admin/includes/menu.twig" %}
+
+    <h2>{{ pagetitle }}</h2>
+    <form method="post" class="pure-form" enctype="multipart/form-data">
+        <h3> {% trans 'XML metadata' %}</h3>
+        <div class="pure-control-group">
+            <textarea name="xmldata" rows="20" class="text-area edge">{{ xmldata }}</textarea>
+        </div>
+        <br>
+        <div class="center">
+            <div class="pure-button-group two-elements" role="group">
+                <label class="pure-button">
+                    <span class="fa fa-folder-open"></span>{{ 'or select a file:'|trans }}
+                    <input type="file" name="xmlfile" class="hidden" multiple>
+                </label>
+                {#needs translation#}
+                <label id="show-file" class="pure-button hollow show-files" disabled>No file selected.</label>
+            </div>
+            <br>
+            <button class="pure-button pure-button-red pure-input-1-3">{{ 'Parse'|trans }}</button>
+        </div>
+    </form>
+
+    {% if output -%}
+    <br>
+    <h2>{{ 'Converted metadata'|trans }}</h2>
+        {% for type, text in output if text -%}
+{# spaceless is to work around a clipboard.js bug that would add extra whitespace #}
+{% spaceless %}
+    <div class="code-box">
+        <div class="code-box-title">
+            <h3>{{ type }}</h3>
+            <button data-clipboard-target="#metadata{{ loop.index }}" id="btn{{ loop.index }}" class="pure-button right clipboard-btn copy">
+                <i class="fa fa-copy"></i>
+            </button>
+        </div>
+        <div class="code-box-content">
+            <pre id="metadata{{ loop.index }}">{{ text|escape }}</pre>
+        </div>
+    </div>
+{% endspaceless %}
+            <br><br>
+            {%- set i=i+1 %}
+        {%- endfor -%}
+    {% endif -%}
+{% endblock content -%}
+