From 35260cb5dbc99970b938af20e71f0056a8285e05 Mon Sep 17 00:00:00 2001
From: Tom James Holub <tom@holub.me>
Date: Sat, 30 Jun 2018 04:35:08 +0000
Subject: [PATCH] configurable max uid length | close #724

---
 src/config/config.js | 8 +++++++-
 src/util.js          | 3 +++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/config/config.js b/src/config/config.js
index 630c30a3..d519575e 100644
--- a/src/config/config.js
+++ b/src/config/config.js
@@ -167,5 +167,11 @@ export default {
    * @memberof module:config
    * @property {String} node_store
    */
-  node_store:    "./openpgp.store"
+  node_store:    "./openpgp.store",
+  /**
+   * Max userid string length (used for parsing)
+   * @memberof module:config
+   * @property {Integer} max_userid_length
+   */
+  max_userid_length: 1024 * 5
 };
diff --git a/src/util.js b/src/util.js
index 4f771231..a282ab8f 100644
--- a/src/util.js
+++ b/src/util.js
@@ -591,6 +591,9 @@ export default {
    * Parse user id.
    */
   parseUserId: function(userid) {
+    if(userid.length > config.max_userid_length) {
+      throw new Error('User id string is too long');
+    }
     try {
       const [{ phrase: name, address: email, comment }] = rfc2822.parse(userid);
       return { name, email, comment: comment.replace(/^\(|\)$/g, '') };