3 files changed, 98 insertions, 0 deletions
diff --git a/show_additional_headers/composer.json b/show_additional_headers/composer.json
new file mode 100644
index 0000000..d100754
--- /dev/null
+++ b/show_additional_headers/composer.json
@@ -0,0 +1,24 @@
+{
+    "name": "roundcube/show_additional_headers",
+    "type": "roundcube-plugin",
+    "description": "Proof-of-concept plugin which will fetch additional headers and display them in the message view.",
+    "license": "GPLv3+",
+    "version": "2.0",
+    "authors": [
+        {
+            "name": "Thomas Bruederli",
+            "email": "roundcube@gmail.com",
+            "role": "Lead"
+        }
+    ],
+    "repositories": [
+        {
+            "type": "composer",
+            "url": "http://plugins.roundcube.net"
+        }
+    ],
+    "require": {
+        "php": ">=5.3.0",
+        "roundcube/plugin-installer": ">=0.1.3"
+    }
+}
diff --git a/show_additional_headers/show_additional_headers.php b/show_additional_headers/show_additional_headers.php
new file mode 100644
index 0000000..b7f0110
--- /dev/null
+++ b/show_additional_headers/show_additional_headers.php
@@ -0,0 +1,51 @@
+<?php
+
+/**
+ * Show additional message headers
+ *
+ * Proof-of-concept plugin which will fetch additional headers
+ * and display them in the message view.
+ *
+ * Enable the plugin in config.inc.php and add your desired headers:
+ *   $config['show_additional_headers'] = array('User-Agent');
+ *
+ * @version @package_version@
+ * @author Thomas Bruederli
+ * @license GNU GPLv3+
+ */
+class show_additional_headers extends rcube_plugin
+{
+  public $task = 'mail';
+
+  function init()
+  {
+    $rcmail = rcmail::get_instance();
+    if ($rcmail->action == 'show' || $rcmail->action == 'preview') {
+      $this->add_hook('storage_init', array($this, 'storage_init'));
+      $this->add_hook('message_headers_output', array($this, 'message_headers'));
+    } else if ($rcmail->action == '') {
+      // with enabled_caching we're fetching additional headers before show/preview
+      $this->add_hook('storage_init', array($this, 'storage_init'));
+    }
+  }
+
+  function storage_init($p)
+  {
+    $rcmail = rcmail::get_instance();
+    if ($add_headers = (array)$rcmail->config->get('show_additional_headers', array()))
+      $p['fetch_headers'] = trim($p['fetch_headers'].' ' . strtoupper(join(' ', $add_headers)));
+
+    return $p;
+  }
+
+  function message_headers($p)
+  {
+    $rcmail = rcmail::get_instance();
+    foreach ((array)$rcmail->config->get('show_additional_headers', array()) as $header) {
+      if ($value = $p['headers']->get($header))
+        $p['output'][$header] = array('title' => $header, 'value' => $value);
+    }
+
+    return $p;
+  }
+}
diff --git a/show_additional_headers/tests/ShowAdditionalHeaders.php b/show_additional_headers/tests/ShowAdditionalHeaders.php
new file mode 100644
index 0000000..ab77351
--- /dev/null
+++ b/show_additional_headers/tests/ShowAdditionalHeaders.php
@@ -0,0 +1,23 @@
+<?php
+
+class ShowAdditionalHeaders_Plugin extends PHPUnit_Framework_TestCase
+{
+
+    function setUp()
+    {
+        include_once __DIR__ . '/../show_additional_headers.php';
+    }
+
+    /**
+     * Plugin object construction test
+     */
+    function test_constructor()
+    {
+        $rcube  = rcube::get_instance();
+        $plugin = new show_additional_headers($rcube->api);
+
+        $this->assertInstanceOf('show_additional_headers', $plugin);
+        $this->assertInstanceOf('rcube_plugin', $plugin);
+    }
+}
+