CLOUD: Add port override for LocalWebserver

It's enabled only when NETWORKING_LOCALWEBSERVER_ENABLE_PORT_OVERRIDE is
defined.

It's not defined, because override means we have to reconfigure our
redirect links somehow to use the override port.

2 files changed, 18 insertions, 6 deletions

diff --git a/backends/networking/sdl_net/localwebserver.cpp b/backends/networking/sdl_net/localwebserver.cpp
index 1480418b70..7c3edfc17f 100644
--- a/backends/networking/sdl_net/localwebserver.cpp
+++ b/backends/networking/sdl_net/localwebserver.cpp
@@ -30,6 +30,7 @@
 #include "common/timer.h"
 #include "common/translation.h"
 #include <SDL/SDL_net.h>
+#include <common/config-manager.h>
 
 #ifdef POSIX
 #include <sys/types.h>
@@ -48,7 +49,7 @@ DECLARE_SINGLETON(Networking::LocalWebserver);
 namespace Networking {
 
 LocalWebserver::LocalWebserver(): _set(nullptr), _serverSocket(nullptr), _timerStarted(false),
-	_stopOnIdle(false), _clients(0), _idlingFrames(0) {
+	_stopOnIdle(false), _clients(0), _idlingFrames(0), _serverPort(DEFAULT_SERVER_PORT) {
 	addPathHandler("/", _indexPageHandler.getHandler());
 	addPathHandler("/files", _filesPageHandler.getHandler());
 	addPathHandler("/create", _createDirectoryHandler.getHandler());
@@ -84,6 +85,7 @@ void LocalWebserver::stopTimer() {
 
 void LocalWebserver::start() {
 	_handleMutex.lock();
+	_serverPort = getPort();
 	_stopOnIdle = false;
 	if (_timerStarted) {
 		_handleMutex.unlock();
@@ -93,7 +95,7 @@ void LocalWebserver::start() {
 
 	// Create a listening TCP socket
 	IPaddress ip;	
-	if (SDLNet_ResolveHost(&ip, NULL, SERVER_PORT) == -1) {
+	if (SDLNet_ResolveHost(&ip, NULL, _serverPort) == -1) {
 		error("SDLNet_ResolveHost: %s\n", SDLNet_GetError());
 	}
 
@@ -166,6 +168,14 @@ bool LocalWebserver::isRunning() {
 	return result;
 }
 
+uint32 LocalWebserver::getPort() {
+#ifdef NETWORKING_LOCALWEBSERVER_ENABLE_PORT_OVERRIDE
+	if (ConfMan.hasKey("local_server_port"))
+		return ConfMan.getInt("local_server_port");
+#endif
+	return DEFAULT_SERVER_PORT;
+}
+
 void LocalWebserver::handle() {
 	_handleMutex.lock();
 	int numready = SDLNet_CheckSockets(_set, 0);
@@ -241,7 +251,7 @@ void LocalWebserver::resolveAddress(void *ipAddress) {
 	IPaddress *ip = (IPaddress *)ipAddress;
 
 	// not resolved
-	_address = Common::String::format("http://127.0.0.1:%u/ (unresolved)", SERVER_PORT);
+	_address = Common::String::format("http://127.0.0.1:%u/ (unresolved)", _serverPort);
 
 	// default way (might work everywhere, surely works on Windows)
 	const char *name = SDLNet_ResolveIP(ip);
@@ -249,13 +259,13 @@ void LocalWebserver::resolveAddress(void *ipAddress) {
 		warning("SDLNet_ResolveHost: %s\n", SDLNet_GetError());
 	} else {
 		IPaddress localIp;
-		if (SDLNet_ResolveHost(&localIp, name, SERVER_PORT) == -1) {
+		if (SDLNet_ResolveHost(&localIp, name, _serverPort) == -1) {
 			warning("SDLNet_ResolveHost: %s\n", SDLNet_GetError());
 		} else {
 			_address = Common::String::format(
 				"http://%u.%u.%u.%u:%u/",
 				localIp.host & 0xFF, (localIp.host >> 8) & 0xFF, (localIp.host >> 16) & 0xFF, (localIp.host >> 24) & 0xFF,
-				SERVER_PORT
+				_serverPort
 			);
 		}
 	}
diff --git a/backends/networking/sdl_net/localwebserver.h b/backends/networking/sdl_net/localwebserver.h
index 1185cda890..3512583605 100644
--- a/backends/networking/sdl_net/localwebserver.h
+++ b/backends/networking/sdl_net/localwebserver.h
@@ -50,7 +50,7 @@ namespace Networking {
 class LocalWebserver : public Common::Singleton<LocalWebserver> {
 	static const uint32 FRAMES_PER_SECOND = 20;
 	static const uint32 TIMER_INTERVAL = 1000000 / FRAMES_PER_SECOND;
-	static const uint32 SERVER_PORT = 12345;
+	static const uint32 DEFAULT_SERVER_PORT = 12345;
 	static const uint32 MAX_CONNECTIONS = 10;
 
 	friend void localWebserverTimer(void *); //calls handle()
@@ -73,6 +73,7 @@ class LocalWebserver : public Common::Singleton<LocalWebserver> {
 	uint32 _idlingFrames;
 	Common::Mutex _handleMutex;
 	Common::String _address;
+	uint32 _serverPort;
 
 	void startTimer(int interval = TIMER_INTERVAL);
 	void stopTimer();
@@ -95,6 +96,7 @@ public:
 	Common::String getAddress();
 	IndexPageHandler &indexPageHandler();
 	bool isRunning();
+	static uint32 getPort();
 
 	static void setClientGetHandler(Client &client, Common::String response, long code = 200, const char *mimeType = nullptr);
 	static void setClientGetHandler(Client &client, Common::SeekableReadStream *responseStream, long code = 200, const char *mimeType = nullptr);