Move the auth handler out of JS. #7

src/http.h

@@ -196,6 +196,15 @@ void tf_http_request_unref(tf_http_request_t* request);
 */
 const char* tf_http_request_get_header(tf_http_request_t* request, const char* name);
 
+/**
+** Get a cookie value from request headers.
+** @param cookie_header The value of the "Cookie" header of the form
+** "name1=value1; name2=value2".
+** @param name The cookie name.
+** @return The cookie value, if found, or NULL.  Must be freed with tf_free().
+*/
+const char* tf_http_get_cookie(const char* cookie_header, const char* name);
+
 /**
 ** Send a websocket message.
 ** @param request The HTTP request which was previously updated to a websocket