Add setEncoding to CryptoStream

lib/tls.js

@@ -86,6 +86,12 @@ CryptoStream.prototype.setNoDelay = function() {
 };
 
 
+CryptoStream.prototype.setEncoding = function(encoding) {
+  var StringDecoder = require('string_decoder').StringDecoder; // lazy load
+  this._decoder = new StringDecoder(encoding);
+};
+
+
 // EG '/C=US/ST=CA/L=SF/O=Joyent/OU=Node.js/CN=ca1/emailAddress=ry@clouds.org'
 function parseCertString(s) {
   var out = {};
@@ -205,10 +211,15 @@ CryptoStream.prototype._blow = function() {
     } while ((chunkBytes > 0) && (pool.used + bytesRead < pool.length));
 
     if (bytesRead > 0) {
-      if (this._events && this._events['data']) {
       chunk = pool.slice(0, bytesRead);
+      if (this._decoder) {
+        var string = this._decoder.write(chunk);
+        if (string.length) this.emit('data', string);
+      } else {
+        if (this._events && this._events['data']) {
           this.emit('data', chunk);
         }
+      }
 
       // Optimization: emit the original buffer with end points
       if (this.ondata) this.ondata(pool, 0, bytesRead);

test/simple/test-tls-set-encoding.js

@@ -0,0 +1,45 @@
+var common = require('../common');
+var assert = require('assert');
+var tls = require('tls');
+var fs = require('fs');
+
+
+var options = {
+  key: fs.readFileSync(common.fixturesDir + '/keys/agent2-key.pem'),
+  cert: fs.readFileSync(common.fixturesDir + '/keys/agent2-cert.pem')
+};
+
+var connections = 0;
+var message = "hello world\n";
+
+
+var server = tls.Server(options, function(socket) {
+  socket.end(message);
+  connections++;
+});
+
+
+server.listen(common.PORT, function() {
+  var client = tls.connect(common.PORT);
+
+  var buffer = '';
+
+  client.setEncoding('utf8');
+
+  client.on('data', function(d) {
+    assert.ok(typeof d === 'string');
+    buffer += d;
+  });
+
+
+  client.on('close', function() {
+    assert.equal(buffer, message);
+    console.log(message);
+    server.close();
+  });
+});
+
+
+process.on('exit', function() {
+  assert.equal(1, connections);
+});