prisma-field-encryption fails with large strings due to RangeError: Maximum call stack size exceeded

[aloisklink]

Issue

Trying to query a large field (approx 4 MiB or larger) fails with the following error:

[prisma-field-encryption] Error: decryption error(s) encountered in operation findFirst:
  Decryption error for TABLE.COLUMN at TABLE.0.COLUMN: RangeError: Maximum call stack size exceeded

This is due to the cloakedStringRegex in @47ng/cloak failing on large strings, due to limitations in V8's regex engine.

Potential fix

I've got a PR fixing this in 47ng/cloak#411, but once it's merged and released, we'd also have to update

prisma-field-encryption/src/encryption.ts

Line 179 in c17354c

if (!cloakedStringRegex.test(cipherText)) {

to something like:

diff --git a/package.json b/package.json
index 1d25e97..c6ee11c 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
     "migrate": "ts-node ./src/tests/migrate.ts"
   },
   "dependencies": {
-    "@47ng/cloak": "^1.1.0",
+    "@47ng/cloak": "^1.2.0",
     "@prisma/generator-helper": "^5.9.1",
     "debug": "^4.3.4",
     "immer": "^10.0.3",
diff --git a/src/encryption.ts b/src/encryption.ts
index 8ba0fea..7472382 100644
--- a/src/encryption.ts
+++ b/src/encryption.ts
@@ -1,11 +1,11 @@
 import {
-  cloakedStringRegex,
   CloakKeychain,
   decryptStringSync,
   encryptStringSync,
   findKeyForMessage,
   makeKeychainSync,
   ParsedCloakKey,
+  parseCloakedString,
   parseKeySync
 } from '@47ng/cloak'
 import { Draft, produce } from 'immer'
@@ -176,7 +176,7 @@ export function decryptOnRead<Models extends string, Actions extends string>(
       field
     }) {
       try {
-        if (!cloakedStringRegex.test(cipherText)) {
+        if (!parseCloakedString(cipherText)) {
           return
         }
         const decryptionKey = findKeyForMessage(cipherText, keys.keychain)