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.

4 files changed, 185 insertions, 14 deletions

diff --git a/lang/js/BrowserTestExtension/browsertest.html b/lang/js/BrowserTestExtension/browsertest.html
index ce037a11..d12e03cf 100644
--- a/lang/js/BrowserTestExtension/browsertest.html
+++ b/lang/js/BrowserTestExtension/browsertest.html
@@ -18,6 +18,7 @@
 <!-- insert tests here-->
     <script src="tests/startup.js"></script>
     <script src="tests/encryptTest.js"></script>
+    <script src="tests/encryptDecryptTest.js"></script>
 
 <!-- run tests -->
     <script src="runbrowsertest.js"></script>
diff --git a/lang/js/BrowserTestExtension/tests/encryptDecryptTest.js b/lang/js/BrowserTestExtension/tests/encryptDecryptTest.js
new file mode 100644
index 00000000..7abf2d94
--- /dev/null
+++ b/lang/js/BrowserTestExtension/tests/encryptDecryptTest.js
@@ -0,0 +1,72 @@
+/* gpgme.js - Javascript integration for gpgme
+ * Copyright (C) 2018 Bundesamt für Sicherheit in der Informationstechnik
+ *
+ * This file is part of GPGME.
+ *
+ * GPGME is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as
+ * published by the Free Software Foundation; either version 2.1 of
+ * the License, or (at your option) any later version.
+ *
+ * GPGME is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * SPDX-License-Identifier: LGPL-2.1+
+ */
+
+describe('Encryption and Decryption', function () {
+    it('Successful encrypt and decrypt', function (done) {
+        let prm = Gpgmejs.init();
+        prm.then(function (context) {
+            context.encrypt(
+                inputvalues.encrypt.good.data,
+                inputvalues.encrypt.good.fingerprint).then( function(answer){
+                    expect(answer).to.not.be.empty;
+                    expect(answer.data).to.be.a("string");
+                    expect(answer.data).to.include('BEGIN PGP MESSAGE');
+                    expect(answer.data).to.include('END PGP MESSAGE');
+                    context.decrypt(answer.data).then(function(result){
+                        expect(result).to.not.be.empty;
+                        expect(result.data).to.be.a('string');
+                        expect(result.data).to.equal(inputvalues.encrypt.good.data);
+                        done();
+                    });
+                });
+        });
+    });
+
+/**
+ * Fails with random data! Some bytes (up to 100) of the original are missing in
+ * the result
+ */
+/**
+    for (let i=0; i< 20; i++) {
+        it('Successful encrypt 1 MB '+ i+ '/20', function (done) {
+            let prm = Gpgmejs.init();
+            let data = bigString(0.1);
+                prm.then(function (context) {
+                    context.encrypt(data,
+                        inputvalues.encrypt.good.fingerprint).then(
+                            function (answer){
+                                expect(answer).to.not.be.empty;
+                                expect(answer.data).to.be.a("string");
+                                expect(answer.data).to.include(
+                                    'BEGIN PGP MESSAGE');
+                                expect(answer.data).to.include(
+                                    'END PGP MESSAGE');
+                                context.decrypt(answer.data).then(
+                                    function(result){
+                                        expect(result).to.not.be.empty;
+                                        expect(result.data).to.be.a('string');
+                                        expect(result.data).to.equal(data);
+                                        done();
+                                });
+                        });
+                });
+        }).timeout(10000);
+    };*/
+});
\ No newline at end of file
diff --git a/lang/js/BrowserTestExtension/tests/encryptTest.js b/lang/js/BrowserTestExtension/tests/encryptTest.js
index 2178efac..37b319ed 100644
--- a/lang/js/BrowserTestExtension/tests/encryptTest.js
+++ b/lang/js/BrowserTestExtension/tests/encryptTest.js
@@ -17,47 +17,133 @@
  * License along with this program; if not, see <http://www.gnu.org/licenses/>.
  * SPDX-License-Identifier: LGPL-2.1+
  */
-describe('Encryption', function(){
-    it('Successfull encrypt', function(){
+describe('Encryption', function () {
+    it('Successful encrypt', function (done) {
         let prm = Gpgmejs.init();
-        prm.then(function(context){
+        prm.then(function (context) {
             context.encrypt(
-            inputvalues.encrypt.good.data,
-            inputvalues.encrypt.good.fingerprint).then(function(answer){
+                inputvalues.encrypt.good.data,
+                inputvalues.encrypt.good.fingerprint).then(function (answer) {
                     expect(answer).to.not.be.empty;
                     expect(answer.data).to.be.a("string");
                     expect(answer.data).to.include('BEGIN PGP MESSAGE');
                     expect(answer.data).to.include('END PGP MESSAGE');
+                    done();
                 });
         });
     });
 
-    it('Sending encryption without keys fails', function(){
+    it('Successful encrypt 5 MB', function (done) {
         let prm = Gpgmejs.init();
-        prm.then(function(context){
+        let data = bigString(5);
+        prm.then(function (context) {
+            context.encrypt(
+                data,
+                inputvalues.encrypt.good.fingerprint).then(function (answer) {
+                    expect(answer).to.not.be.empty;
+                    expect(answer.data).to.be.a("string");
+                    expect(answer.data).to.include('BEGIN PGP MESSAGE');
+                    expect(answer.data).to.include('END PGP MESSAGE');
+                    done();
+                });
+        });
+    }).timeout(5000);
+
+    it('Successful encrypt 20 MB', function (done) {
+        let prm = Gpgmejs.init();
+        let data = bigString(20);
+        prm.then(function (context) {
+            context.encrypt(
+                data,
+                inputvalues.encrypt.good.fingerprint).then(function (answer) {
+                    expect(answer).to.not.be.empty;
+                    expect(answer.data).to.be.a("string");
+                    expect(answer.data).to.include('BEGIN PGP MESSAGE');
+                    expect(answer.data).to.include('END PGP MESSAGE');
+                    done();
+                });
+        });
+    }).timeout(20000);
+
+/**
+    it('Successful encrypt 30 MB', function (done) {
+        // TODO: There seems to be a limit imposed at least by chrome at about 21 MB
+        let prm = Gpgmejs.init();
+        let data = bigString(30);
+        prm.then(function (context) {
+            context.encrypt(
+                data,
+                inputvalues.encrypt.good.fingerprint).then(function (answer) {
+                    expect(answer).to.not.be.empty;
+                    expect(answer.data).to.be.a("string");
+                    expect(answer.data).to.include('BEGIN PGP MESSAGE');
+                    expect(answer.data).to.include('END PGP MESSAGE');
+                    done();
+                });
+        });
+    }).timeout(20000);
+*/
+
+    it('Sending encryption without keys fails', function (done) {
+        let prm = Gpgmejs.init();
+        prm.then(function (context) {
             context.encrypt(
                 inputvalues.encrypt.good.data,
-                null).then(function(answer){
+                null).then(function (answer) {
                     expect(answer).to.be.undefined;
                 }, function(error){
                     expect(error).to.be.an('Error');
                     expect(error.code).to.equal('MSG_INCOMPLETE');
-                    //TODO: MSG_INCOMPLETE desired, GNUPG_ERROR coming
+                    done();
                 });
         });
     });
 
-    it('Sending encryption without data fails', function(){
+    it('Sending encryption without data fails', function (done) {
         let prm = Gpgmejs.init();
-        prm.then(function(context){
+        prm.then(function (context) {
             context.encrypt(
-                null,inputvalues.encrypt.good.keyid).then(function(answer){
+                null, inputvalues.encrypt.good.keyid).then(function (answer) {
                     expect(answer).to.be.undefined;
-                }, function(error){
+                }, function (error) {
                     expect(error).to.be.an.instanceof(Error);
-                    expect(error.code).to.equal('PARAM_WRONG');
+                    expect(error.code).to.equal('MSG_INCOMPLETE');
+                    done();
+                });
+        });
+    });
+
+
+    it('Sending encryption with non existing keys fails', function (done) {
+        let prm = Gpgmejs.init();
+        prm.then(function (context) {
+            context.encrypt(
+                inputvalues.encrypt.good.data,
+                inputvalues.encrypt.bad.fingerprint).then(function (answer) {
+                    expect(answer).to.be.undefined;
+                }, function(error){
+                    expect(error).to.be.an('Error');
+                    expect(error.code).to.not.be.undefined;
+                    expect(error.code).to.equal('GNUPG_ERROR');
+                    done();
                 });
         });
     });
+
+    it('Overly large message ( >= 48MB) is rejected', function (done) {
+        let prm = Gpgmejs.init();
+        prm.then(function (context) {
+            context.encrypt(
+                bigString(48),
+                inputvalues.encrypt.good.fingerprint).then(function (answer) {
+                    expect(answer).to.be.undefined;
+                }, function(error){
+                    expect(error).to.be.an.instanceof(Error);
+                    // TODO who is throwing the error here?
+                    // It is not a GPGME_Error!
+                    done();
+                });
+        });
+    }).timeout(8000);
     // TODO check different valid parameter
 });
diff --git a/lang/js/BrowserTestExtension/tests/inputvalues.js b/lang/js/BrowserTestExtension/tests/inputvalues.js
index 1761c82f..3cd1e92a 100644
--- a/lang/js/BrowserTestExtension/tests/inputvalues.js
+++ b/lang/js/BrowserTestExtension/tests/inputvalues.js
@@ -23,6 +23,9 @@ var inputvalues = {
         good:{
             data : 'Hello World.',
             fingerprint : 'CDC3A2B2860625CCBFC5A5A9FC6D1B604967FC40'
+        },
+        bad: {
+            fingerprint: 'CDC3A2B2860625CCBFC5AAAAAC6D1B604967FC4A'
         }
     },
     init: {
@@ -30,3 +33,12 @@ var inputvalues = {
     }
 
 };
+
+function bigString(megabytes){
+    let maxlength = 1024 * 1024 * megabytes;
+    let uint = new Uint8Array(maxlength);
+    for (let i= 0; i < maxlength; i++){
+        uint[i] = Math.random() * Math.floor(256);
+    }
+    return new TextDecoder('utf-8').decode(uint);
+}