adding in optional ability to add headers

easywsclient.cpp

@@ -1,4 +1,5 @@
 
+#include <map>
 #ifdef _WIN32
     #if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)
         #define _CRT_SECURE_NO_WARNINGS // _CRT_SECURE_NO_WARNINGS for sscanf errors in MSVC2013 Express
@@ -454,7 +455,7 @@ class _RealWebSocket : public easywsclient::WebSocket
 };
 
 
-easywsclient::WebSocket::pointer from_url(const std::string& url, bool useMask, const std::string& origin) {
+easywsclient::WebSocket::pointer from_url(const std::string& url, bool useMask, const std::string& origin, const std::map<std::string, std::string>& extraHeaders) {
     char host[512];
     int port;
     char path[512];
@@ -506,6 +507,12 @@ easywsclient::WebSocket::pointer from_url(const std::string& url, bool useMask,
         if (!origin.empty()) {
             snprintf(line, 1024, "Origin: %s\r\n", origin.c_str()); ::send(sockfd, line, strlen(line), 0);
         }
+        if (!extraHeaders.empty()) {
+          for (auto header : extraHeaders) {
+            snprintf(line, 1024, "%s: %s\r\n", header.first.c_str(), header.second.c_str());
+            ::send(sockfd, line, strlen(line), 0);
+          }
+        }
         snprintf(line, 1024, "Sec-WebSocket-Key: x3JJHMbDL1EzLkh9GBhXDw==\r\n"); ::send(sockfd, line, strlen(line), 0);
         snprintf(line, 1024, "Sec-WebSocket-Version: 13\r\n"); ::send(sockfd, line, strlen(line), 0);
         snprintf(line, 1024, "\r\n"); ::send(sockfd, line, strlen(line), 0);
@@ -543,12 +550,20 @@ WebSocket::pointer WebSocket::create_dummy() {
 }
 
 
-WebSocket::pointer WebSocket::from_url(const std::string& url, const std::string& origin) {
+WebSocket::pointer WebSocket::from_url(
-    return ::from_url(url, true, origin);
+    const std::string& url,
+    const std::string& origin,
+    const std::map<std::string, std::string>& extraHeaders
+  ) {
+    return ::from_url(url, true, origin, extraHeaders);
 }
 
-WebSocket::pointer WebSocket::from_url_no_mask(const std::string& url, const std::string& origin) {
+WebSocket::pointer WebSocket::from_url_no_mask(
-    return ::from_url(url, false, origin);
+    const std::string& url,
+    const std::string& origin,
+    const std::map<std::string, std::string>& extraHeaders
+  ) {
+    return ::from_url(url, false, origin, extraHeaders);
 }
 
 

easywsclient.hpp

@@ -8,6 +8,7 @@
 // wget https://raw.github.com/dhbaird/easywsclient/master/easywsclient.hpp
 // wget https://raw.github.com/dhbaird/easywsclient/master/easywsclient.cpp
 
+#include <map>
 #include <string>
 #include <vector>
 
@@ -23,8 +24,16 @@ class WebSocket {
 
     // Factories:
     static pointer create_dummy();
-    static pointer from_url(const std::string& url, const std::string& origin = std::string());
+    static pointer from_url(
-    static pointer from_url_no_mask(const std::string& url, const std::string& origin = std::string());
+        const std::string& url,
+        const std::string& origin = std::string(),
+        const std::map<std::string, std::string>& extraHeaders = std::map<std::string, std::string>()
+    );
+    static pointer from_url_no_mask(
+        const std::string& url,
+        const std::string& origin = std::string(),
+        const std::map<std::string, std::string>& extraHeaders = std::map<std::string, std::string>()
+    );
 
     // Interfaces:
     virtual ~WebSocket() { }