js: fixing errors found by testing: encrypt/decrypt

--

* Key.js: Error code for wrong parameter in createKey should be
  "PARAM_WRONG"
* Helpers.js: The property openpgpjs-like Objects were checked for in
  toKeyIdArray was not defined.
* src/permittedOperations.js: updated more expectations and assumptions
  for the native API

* new Problems:
  - There seems to be a message size limit of about 21 MB for
    nativeMessaging, much lower than the documented 4GB.
  - Some bytes are lost with random data in an encrypt-decrypt
    roundtrip. The culprit is unclear.

1 files changed, 17 insertions, 2 deletions

diff --git a/lang/js/src/Message.js b/lang/js/src/Message.js
index c42480f2..6a59c3e0 100644
--- a/lang/js/src/Message.js
+++ b/lang/js/src/Message.js
@@ -84,9 +84,22 @@ export class GPGME_Message {
         let checktype = function(val){
             switch(typeof(val)){
                 case 'string':
+                    if (poparam.allowed.indexOf(typeof(val)) >= 0
+                        && val.length > 0) {
+                        return true;
+                    }
+                    return gpgme_error('PARAM_WRONG');
+                    break;
                 case 'number':
+                    if (
+                        poparam.allowed.indexOf('number') >= 0
+                        && isNaN(value) === false){
+                            return true;
+                    }
+                    return gpgme_error('PARAM_WRONG');
+                    break;
                 case 'boolean':
-                    if (poparam.allowed.indexOf(typeof(val)) >= 0){
+                    if (poparam.allowed.indexOf('boolean') >= 0){
                         return true;
                     }
                     return gpgme_error('PARAM_WRONG');
@@ -102,7 +115,9 @@ export class GPGME_Message {
                                 return res;
                             }
                         }
-                        return true;
+                        if (val.length > 0) {
+                            return true;
+                        }
                     } else if (val instanceof Uint8Array){
                         if (poparam.allowed.indexOf('Uint8Array') >= 0){
                             return true;