Fixes for community tickets

src/client/v2/algod/sendRawTransaction.js

@@ -1,8 +1,16 @@
+const assert = require('assert');
+
 class SendRawTransaction {
 	constructor(c, stx_or_stxs) {
 		let forPosting = stx_or_stxs;
+		function isByteArray(array) {
+			return !!(array && array.byteLength !== undefined);
+		}
 		if (Array.isArray(stx_or_stxs)) {
+			assert(stx_or_stxs.every(isByteArray));
 			forPosting = Array.prototype.concat(...stx_or_stxs.map(arr => Array.from(arr)));
+		} else {
+			assert(isByteArray(forPosting));
 		}
 		this.txnBytesToPost = forPosting;
 		this.c = c;

src/logicsig.js

@@ -16,6 +16,14 @@ class LogicSig {
         this.tag = Buffer.from("Program");
 
         assert(logic.checkProgram(program, args));
+        if (args) {
+            assert(Array.isArray(args))
+            function checkType(arg) {
+                let theType = typeof arg;
+                return ((theType == "string") || (theType == "number") || (arg.constructor == Uint8Array) || (Buffer.isBuffer(arg)));
+            }
+            assert(args.every(checkType))
+        }
 
         this.logic = program;
         this.args = args;

src/main.js

@@ -50,7 +50,10 @@ function signTransaction(txn, sk) {
         let key = nacl.keyPairFromSecretKey(sk);
         txn.from = address.encodeAddress(key.publicKey);
     }
-    let algoTxn = new txnBuilder.Transaction(txn);
+    let algoTxn = txn;
+    if (! (txn instanceof txnBuilder.Transaction)) {
+        algoTxn = new txnBuilder.Transaction(txn);
+    }
 
     return {"txID": algoTxn.txID().toString(), "blob": algoTxn.signTxn(sk)};
 }