Merge pull request #3879 from MetaMask/normalize-transactions

Normalize transactions

1 files changed, 45 insertions, 0 deletions

diff --git a/app/scripts/migrations/024.js b/app/scripts/migrations/024.js
new file mode 100644
index 000000000..7a0391805
--- /dev/null
+++ b/app/scripts/migrations/024.js
@@ -0,0 +1,45 @@
+
+const version = 24
+
+/*
+
+This migration ensures that the from address in txParams is to lower case for
+all unapproved transactions
+
+*/
+
+const clone = require('clone')
+
+module.exports = {
+  version,
+
+  migrate: function (originalVersionedData) {
+    const versionedData = clone(originalVersionedData)
+    versionedData.meta.version = version
+    try {
+      const state = versionedData.data
+      const newState = transformState(state)
+      versionedData.data = newState
+    } catch (err) {
+      console.warn(`MetaMask Migration #${version}` + err.stack)
+    }
+    return Promise.resolve(versionedData)
+  },
+}
+
+function transformState (state) {
+  const newState = state
+  const transactions = newState.TransactionController.transactions
+
+  newState.TransactionController.transactions = transactions.map((txMeta, _, txList) => {
+    if (
+      txMeta.status === 'unapproved' &&
+      txMeta.txParams &&
+      txMeta.txParams.from
+      ) {
+      txMeta.txParams.from = txMeta.txParams.from.toLowerCase()
+    }
+    return txMeta
+  })
+  return newState
+}