1 files changed, 64 insertions, 0 deletions
diff --git a/Swiften/Network/NATPMPNATTraversalGetPublicIPRequest.cpp b/Swiften/Network/NATPMPNATTraversalGetPublicIPRequest.cpp
new file mode 100644
index 0000000..06a21a3
--- /dev/null
+++ b/Swiften/Network/NATPMPNATTraversalGetPublicIPRequest.cpp
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2011 Tobias Markmann
+ * Licensed under the simplified BSD license.
+ * See Documentation/Licenses/BSD-simplified.txt for more information.
+ */
+
+#include "NATPMPNATTraversalGetPublicIPRequest.h"
+
+#include <natpmp.h>
+
+#include <Swiften/Base/Log.h>
+
+namespace Swift {
+
+NATPMPNATTraversalGetPublicIPRequest::NATPMPNATTraversalGetPublicIPRequest(PlatformNATTraversalWorker* worker) : PlatformNATTraversalGetPublicIPRequest(worker) {
+
+}
+
+NATPMPNATTraversalGetPublicIPRequest::~NATPMPNATTraversalGetPublicIPRequest() {
+
+}
+
+/*
+TODO: a non-blocking solution should be possible too here
+void NATPMPNATTraversalGetPublicIPRequest::run() {
+	// we can run directly since libnatpmp's API is asynchronous
+	runBlocking();
+}*/
+
+void NATPMPNATTraversalGetPublicIPRequest::runBlocking() {
+	boost::optional<HostAddress> result;
+
+	natpmp_t natpmp;
+	natpmpresp_t response;
+	initnatpmp(&natpmp, 0, 0);
+
+	do {
+		if (sendpublicaddressrequest(&natpmp) != 2) {
+			SWIFT_LOG(debug) << "Failed to send NAT-PMP public address request!" << std::endl;
+			break;
+		}
+		int r = 0;
+
+		do {
+		  fd_set fds;
+		  struct timeval timeout;
+		  FD_ZERO(&fds);
+		  FD_SET(natpmp.s, &fds);
+		  getnatpmprequesttimeout(&natpmp, &timeout);
+		  select(FD_SETSIZE, &fds, NULL, NULL, &timeout);
+		  r = readnatpmpresponseorretry(&natpmp, &response);
+		} while(r == NATPMP_TRYAGAIN);
+
+		if (r == 0) {
+			result = boost::optional<HostAddress>(HostAddress(reinterpret_cast<const unsigned char*>(&(response.pnu.publicaddress.addr)), 4));
+		} else {
+			SWIFT_LOG(debug) << "Inavlid NAT-PMP response." << std::endl;
+		}
+	} while(false);
+	closenatpmp(&natpmp);
+	onResult(result);
+}
+
+}