Allow iteration over headers

examples/Headers.js

@@ -0,0 +1,31 @@
+/* Example of looping over all headers (not recommended as production solution,
+ * do NOT use this to "solve" your problems with headers, use ONLY for debugging) */
+
+const uWS = require('../dist/uws.js');
+const port = 9001;
+
+const app = uWS./*SSL*/App({
+  key_file_name: 'misc/key.pem',
+  cert_file_name: 'misc/cert.pem',
+  passphrase: '1234'
+}).get('/*', (res, req) => {
+
+  res.write('<h2>Hello, your headers are:</h2><ul>');
+
+  req.forEach((k, v) => {
+    res.write('<li>');
+    res.write(k);
+    res.write(' = ');
+    res.write(v);
+    res.write('</li>');
+  });
+
+  res.end('</ul>');
+
+}).listen(port, (token) => {
+  if (token) {
+    console.log('Listening to port ' + port);
+  } else {
+    console.log('Failed to listen to port ' + port);
+  }
+});

src/HttpRequestWrapper.h

@@ -16,6 +16,20 @@ struct HttpRequestWrapper {
         return req;
     }
 
+    /* Takes function of string, string. Returns this (doesn't really but should) */
+    static void req_forEach(const FunctionCallbackInfo<Value> &args) {
+        auto *req = getHttpRequest(args);
+        if (req) {
+            Local<Function> cb = Local<Function>::Cast(args[0]);
+
+            for (auto p : *req) {
+                Local<Value> argv[] = {String::NewFromUtf8(isolate, p.first.data(), String::kNormalString, p.first.length()),
+                                       String::NewFromUtf8(isolate, p.second.data(), String::kNormalString, p.second.length())};
+                cb->Call(isolate->GetCurrentContext()->Global(), 2, argv);
+            }
+        }
+    }
+
     /* Takes int, returns string (must be in bounds) */
     static void req_getParameter(const FunctionCallbackInfo<Value> &args) {
         auto *req = getHttpRequest(args);
@@ -83,6 +97,7 @@ struct HttpRequestWrapper {
         reqTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "getUrl"), FunctionTemplate::New(isolate, req_getUrl));
         reqTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "getMethod"), FunctionTemplate::New(isolate, req_getMethod));
         reqTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "getQuery"), FunctionTemplate::New(isolate, req_getQuery));
+        reqTemplateLocal->PrototypeTemplate()->Set(String::NewFromUtf8(isolate, "forEach"), FunctionTemplate::New(isolate, req_forEach));
 
         /* Create the template */
         Local<Object> reqObjectLocal = reqTemplateLocal->GetFunction()->NewInstance(isolate->GetCurrentContext()).ToLocalChecked();

uWebSockets

@@ -1 +1 @@
-Subproject commit cd899fb988bf9bb4306b60acbf6b713b065b7d8c
+Subproject commit 0212ee5bd04a0320a3422a5acafe29730e264f57