Implement pdf signing on the client

new library function signPdf(passportUUID /string/, pdfRaw /array buffer|Uint8Array/)

Closes #32 (closed)

javascript/src/iframe/viamapi-iframe.js

@@ -16,6 +16,9 @@ import {
   decryptMessage,
   encryptMessage, signEmail
 } from '../utilities/signingUtilities';
+import {
+  signPdf
+} from '../utilities/pdfUtilities';
 import CryptoData from '../CryptoData';
 import Identity from '../Identity';
 import {STATUS_DEVICE_REVOKED} from '../constants/statuses';
@@ -935,6 +938,64 @@ const connection = Penpal.connectToParent({
 
       return encodeResponse("200", response.data, "Email signed");
     },
+    signPdf: async (passportUUID, pdfRaw /*array buffer*/) => {
+
+        //TODO api is not finished
+
+        const authenticationPublicKey = localStorage.getItem("authenticatedIdentity");
+
+        if (
+            !authenticationPublicKey ||
+            !window.loadedIdentities[authenticationPublicKey] ||
+            !extendPinCodeTtl(authenticationPublicKey)
+        ) {
+            return encodeResponse("400", "", "Identity not authenticated");
+        }
+
+        let response = await getCertificateForPassport(passportUUID, true);
+
+        if (response.code !== "200") {
+            return encodeResponse("400", "", response.status);
+        }
+
+        const {
+            x509Certificate: passportCertificate,
+            privateKey: passportPrivateKey,
+            chain: passportChain
+        } = response.data;
+
+        const keys =
+            await createOneTimePassportCertificate(
+                makeid() + "-" + passportUUID, null, passportPrivateKey, passportCertificate);
+
+        const { privateKeyPEM: privateKeyOneTime, certificatePEM: certificateOneTime } = keys;
+
+        passportChain.push(passportCertificate);
+
+        const signedPdf = await signPdf(pdfRaw, certificateOneTime, passportChain, privateKeyOneTime);
+
+        //for test
+        response.data.signedPdf = signedPdf;
+        //for test
+
+        // response = await executeRestfulFunction(
+        //     "private", window.viamApi, window.viamApi.passportGetEmailWithHeaderByPassport, null, passportUUID, emailMessage);
+        //
+        // if (response.code !== "200") {
+        //     return encodeResponse("400", "", response.status);
+        // }
+        //
+        // const signedEmail = await signEmail(response.data, certificateOneTime, passportChain, privateKeyOneTime);
+        //
+        // response = await executeRestfulFunction(
+        //     "private", window.viamApi, window.viamApi.signResignEmail, null, passportUUID, signedEmail);
+        //
+        // if (response.code !== "200") {
+        //     return encodeResponse("400", "", response.status);
+        // }
+
+        return encodeResponse("200", response.data, "PDF signed");
+    },
     documentCreateDocument: async (path, passportUUID, contenttype) => {
       const authenticationPublicKey = localStorage.getItem("authenticatedIdentity");
       if (