Auto fail transactions that have been approved for over 12 hours (#5765)

* Auto fail transactions that have been approved for over 12 hours

Converts txs using a migration.

This migration uses a new helper function that generates tx-failing
migrations, and only requires a version, error message, and condition to
run on each transaction.

* Linted

* Only migrate approved txs to failed

* Cleanup

* Cleanup

* Small lint fixes

1 files changed, 41 insertions, 0 deletions

diff --git a/app/scripts/migrations/fail-tx.js b/app/scripts/migrations/fail-tx.js
new file mode 100644
index 000000000..98e3ffddb
--- /dev/null
+++ b/app/scripts/migrations/fail-tx.js
@@ -0,0 +1,41 @@
+const clone = require('clone')
+
+module.exports = function (version, reason, condition) {
+  return function (originalVersionedData) {
+    const versionedData = clone(originalVersionedData)
+    versionedData.meta.version = version
+    try {
+      const state = versionedData.data
+      const newState = transformState(state, condition, reason)
+      versionedData.data = newState
+    } catch (err) {
+      console.warn(`MetaMask Migration #${version}` + err.stack)
+    }
+    return Promise.resolve(versionedData)
+
+  }
+}
+
+function transformState (state, condition, reason) {
+  const newState = state
+  const { TransactionController } = newState
+  if (TransactionController && TransactionController.transactions) {
+    const transactions = TransactionController.transactions
+
+    newState.TransactionController.transactions = transactions.map((txMeta) => {
+      if (!condition(txMeta)) {
+        return txMeta
+      }
+
+      txMeta.status = 'failed'
+      txMeta.err = {
+        message: reason,
+        note: `Tx automatically failed by migration because ${reason}`,
+      }
+
+      return txMeta
+    })
+  }
+  return newState
+}
+