address: better network validation.

lib/http/server.js

@@ -378,10 +378,8 @@ HTTPServer.prototype._init = function _init() {
           enforce(typeof output.address === 'string',
             'Address must be a string.');
           output.address = Address.fromBase58(output.address);
-          if (this.network.type === 'main') {
-            enforce(output.address.network === this.network,
-              'Wrong network for address.');
-          }
+          enforce(output.address.verifyNetwork(this.network),
+            'Wrong network for address.');
         } else if (output.script) {
           enforce(typeof output.script === 'string',
             'Script must be a string.');

lib/primitives/address.js

@@ -90,6 +90,30 @@ Address.prototype.getHash = function getHash(enc) {
   return this.hash;
 };
 
+/**
+ * Get a network address prefix for the address.
+ * @param {Network?} network
+ * @returns {Number}
+ */
+
+Address.prototype.getPrefix = function getPrefix(network) {
+  if (!network)
+    network = this.network;
+  network = Network.get(network);
+  return Address.getPrefix(this.type, network);
+};
+
+/**
+ * Verify an address network (compares prefixes).
+ * @param {Network} network
+ * @returns {Boolean}
+ */
+
+Address.prototype.verifyNetwork = function verifyNetwork(network) {
+  assert(network);
+  return this.getPrefix() === this.getPrefix(network);
+};
+
 /**
  * Get the address type as a string.
  * @returns {AddressType}