a

backend/node_modules/mongoose/lib/cast/uuid.js

@@ -0,0 +1,35 @@
+'use strict';
+
+const UUID = require('mongodb/lib/bson').UUID;
+
+const UUID_FORMAT = /[0-9a-f]{8}-[0-9a-f]{4}-[0-9][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}/i;
+
+module.exports = function castUUID(value) {
+  if (value == null) {
+    return value;
+  }
+
+  if (value instanceof UUID) {
+    return value;
+  }
+  if (typeof value === 'string') {
+    if (UUID_FORMAT.test(value)) {
+      return new UUID(value);
+    } else {
+      throw new Error(`"${value}" is not a valid UUID string`);
+    }
+  }
+
+  // Re: gh-647 and gh-3030, we're ok with casting using `toString()`
+  // **unless** its the default Object.toString, because "[object Object]"
+  // doesn't really qualify as useful data
+  if (value.toString && value.toString !== Object.prototype.toString) {
+    if (UUID_FORMAT.test(value.toString())) {
+      return new UUID(value.toString());
+    }
+  }
+
+  throw new Error(`"${value}" cannot be casted to a UUID`);
+};
+
+module.exports.UUID_FORMAT = UUID_FORMAT;