Hook into 'identity_form' plugin hook and add list of matching private keys

plugins/enigma/enigma.php

@@ -75,6 +75,7 @@ class enigma extends rcube_plugin
             $this->add_hook('preferences_sections_list', array($this, 'preferences_sections_list'));
             $this->add_hook('preferences_list', array($this, 'preferences_list'));
             $this->add_hook('preferences_save', array($this, 'preferences_save'));
+            $this->add_hook('identity_form', array($this, 'identity_form'));
 
             // register handler for keys/certs management
             $this->register_action('plugin.enigmakeys', array($this, 'preferences_ui'));
@@ -423,6 +424,66 @@ class enigma extends rcube_plugin
         $this->ui->init();
     }
 
+    /**
+     * Handler for 'identity_form' plugin hook.
+     *
+     * This will list private keys matching this identity
+     * and add a link to enigma key management action.
+     *
+     * @param array Original parameters
+     *
+     * @return array Modified parameters
+     */
+    function identity_form($p)
+    {
+        if (isset($p['form']['encryption']) && !empty($p['record']['identity_id'])) {
+            $content = '';
+
+            // find private keys for this identity
+            if ($p['record']['email']) {
+                $listing = array();
+                $engine = $this->load_engine();
+                $keys = (array)$engine->list_keys($p['record']['email']);
+
+                foreach ($keys as $key) {
+                    if ($key->get_type() === enigma_key::TYPE_KEYPAIR) {
+                        $listing[] = html::tag('li', null,
+                            html::tag('span', 'identity', html::quote($key->name)) .
+                            ' ' .
+                            html::tag('strong', 'uid', html::quote($key->id))
+                        );
+                    }
+                }
+
+                if (count($listing)) {
+                    $content .= html::p(null, $this->gettext(array('name' => 'identitymatchingprivkeys', 'vars' => array('nr' => count($listing)))));
+                    $content .= html::tag('ul', 'keylist', join('\n', $listing));
+                } else {
+                    $content .= html::p(null, $this->gettext('identitynoprivkeys'));
+                }
+            }
+
+            // add button linking to enigma key management
+            $content .= html::p(
+                null,
+                html::a(
+                    array(
+                        'class' => 'button',
+                        'href' => $this->rc->url(array('action' => 'plugin.enigmakeys')),
+                        'target' => '_parent',
+                    ),
+                    $this->gettext('managekeys'))
+            );
+
+            // rename class to avoid Mailvelope key management to kick in
+            $p['form']['encryption']['attrs'] = array('class' => 'enigma-identity-encryption');
+            // fill fieldset content with our stuff
+            $p['form']['encryption']['content'] = html::div('identity-encryption-block', $content);
+        }
+
+        return $p;
+    }
+
     /**
      * Handler for message_body_prefix hook.
      * Called for every displayed (content) part of the message.

plugins/enigma/localization/en_US.inc

@@ -94,6 +94,10 @@ $labels['findkey'] = 'Search on key server(s)';
 $labels['keyimportlabel'] = 'Import from file';
 $labels['keyimportsearchlabel'] = 'Search on key server(s)';
 
+$labels['managekeys'] = 'Manage PGP keys';
+$labels['identitymatchingprivkeys'] = 'You have $nr matching PGP private keys stored in your keyring:';
+$labels['identitynoprivkeys'] = 'This sender identity doesn\'t yet have a PGP private key stored in your keyring.';
+
 $messages = array();
 $messages['sigvalid'] = 'Verified signature from $sender.';
 $messages['sigvalidpartial'] = 'Verified signature from $sender, but part of the body was not signed.';