From bfea26d3e3d12de6ce9bbc01ad24a42d846021e5 Mon Sep 17 00:00:00 2001
From: Dan Finlay <dan@danfinlay.com>
Date: Tue, 6 Sep 2016 18:56:26 -0700
Subject: [PATCH 1/2] Ensure listener is cleaned up

Also fixed bug when validating a tx with no value.
---
 app/scripts/background.js           |  1 +
 app/scripts/lib/listener-manager.js | 25 +++++++++++++++++++++++++
 app/scripts/metamask-controller.js  |  2 +-
 3 files changed, 27 insertions(+), 1 deletion(-)
 create mode 100644 app/scripts/lib/listener-manager.js

diff --git a/app/scripts/background.js b/app/scripts/background.js
index 21a5eea65..18aaed7bf 100644
--- a/app/scripts/background.js
+++ b/app/scripts/background.js
@@ -86,6 +86,7 @@ function setupControllerConnection (stream) {
   stream.pipe(dnode).pipe(stream)
   dnode.on('remote', (remote) => {
     // push updates to popup
+    controller.ethStore.removeListener('update', controller.sendUpdate.bind(controller))
     controller.ethStore.on('update', controller.sendUpdate.bind(controller))
     controller.listeners.push(remote)
     idStore.on('update', controller.sendUpdate.bind(controller))
diff --git a/app/scripts/lib/listener-manager.js b/app/scripts/lib/listener-manager.js
new file mode 100644
index 000000000..9e3c71afc
--- /dev/null
+++ b/app/scripts/lib/listener-manager.js
@@ -0,0 +1,25 @@
+module.exports = class ListenerManager {
+
+  constructor() {
+    this.cleaners = {}
+  }
+
+  setup (name) {
+    if (!(name in this.cleaners)) {
+      this.cleaners[name] = []
+    }
+  }
+
+  addCleanup (name, cleaner) {
+    this.setup(name)
+  }
+
+  cleanupOldListeners (name) {
+    this.setup(name)
+    this.cleaners[name].forEach((cleaner) => {
+      cleaner()
+    })
+    this.cleaners[name] = []
+  }
+
+}
diff --git a/app/scripts/metamask-controller.js b/app/scripts/metamask-controller.js
index 83827ec76..5373cf0d9 100644
--- a/app/scripts/metamask-controller.js
+++ b/app/scripts/metamask-controller.js
@@ -220,7 +220,7 @@ module.exports = class MetamaskController {
   }
 
   enforceTxValidations (txParams) {
-    if (txParams.value.indexOf('-') === 0) {
+    if (('value' in txParams) && txParams.value.indexOf('-') === 0) {
       const msg = `Invalid transaction value of ${txParams.value} not a positive number.`
       return new Error(msg)
     }

From 2564c0c51c39e428540e38b80558e45ec44357a8 Mon Sep 17 00:00:00 2001
From: Dan Finlay <dan@danfinlay.com>
Date: Tue, 6 Sep 2016 18:57:18 -0700
Subject: [PATCH 2/2] Bump changelog

---
 CHANGELOG.md                        |  1 +
 app/scripts/lib/listener-manager.js | 25 -------------------------
 2 files changed, 1 insertion(+), 25 deletions(-)
 delete mode 100644 app/scripts/lib/listener-manager.js

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9021fdf01..bea356ab6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 
 - On fresh install, open a new tab with the MetaMask Introduction video.
 - Block negative values from transactions.
+- Fixed a memory leak.
 
 ## 2.10.2 2016-09-02
 
diff --git a/app/scripts/lib/listener-manager.js b/app/scripts/lib/listener-manager.js
deleted file mode 100644
index 9e3c71afc..000000000
--- a/app/scripts/lib/listener-manager.js
+++ /dev/null
@@ -1,25 +0,0 @@
-module.exports = class ListenerManager {
-
-  constructor() {
-    this.cleaners = {}
-  }
-
-  setup (name) {
-    if (!(name in this.cleaners)) {
-      this.cleaners[name] = []
-    }
-  }
-
-  addCleanup (name, cleaner) {
-    this.setup(name)
-  }
-
-  cleanupOldListeners (name) {
-    this.setup(name)
-    this.cleaners[name].forEach((cleaner) => {
-      cleaner()
-    })
-    this.cleaners[name] = []
-  }
-
-}