Add InvRef:get_location()
[oweals/minetest.git] / src / client.cpp
index 865cf71ee449f8975e2c6f21b6c8323cc8919743..216d86cd412c6d0ffa0e9ae3cd1d8593614887e5 100644 (file)
@@ -44,21 +44,17 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "hex.h"
 #include "IMeshCache.h"
 #include "util/serialize.h"
+#include "config.h"
+
+#if USE_CURL
+#include <curl/curl.h>
+#endif
 
 static std::string getMediaCacheDir()
 {
        return porting::path_user + DIR_DELIM + "cache" + DIR_DELIM + "media";
 }
 
-struct MediaRequest
-{
-       std::string name;
-
-       MediaRequest(const std::string &name_=""):
-               name(name_)
-       {}
-};
-
 /*
        QueuedMeshUpdate
 */
@@ -223,6 +219,46 @@ void * MeshUpdateThread::Thread()
        return NULL;
 }
 
+void * MediaFetchThread::Thread()
+{
+       ThreadStarted();
+
+       log_register_thread("MediaFetchThread");
+
+       DSTACK(__FUNCTION_NAME);
+
+       BEGIN_DEBUG_EXCEPTION_HANDLER
+
+       #if USE_CURL
+       CURL *curl;
+       CURLcode res;
+       for (core::list<MediaRequest>::Iterator i = m_file_requests.begin();
+                       i != m_file_requests.end(); i++) {
+               curl = curl_easy_init();
+               assert(curl);
+               curl_easy_setopt(curl, CURLOPT_NOSIGNAL, 1);
+               curl_easy_setopt(curl, CURLOPT_URL, (m_remote_url + i->name).c_str());
+               curl_easy_setopt(curl, CURLOPT_FAILONERROR, true);
+               std::ostringstream stream;
+               curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, curl_write_data);
+               curl_easy_setopt(curl, CURLOPT_WRITEDATA, &stream);
+               res = curl_easy_perform(curl);
+               if (res == CURLE_OK) {
+                       std::string data = stream.str();
+                       m_file_data.push_back(make_pair(i->name, data));
+               } else {
+                       m_failed.push_back(*i);
+                       infostream << "cURL request failed for " << i->name << std::endl;
+               }
+               curl_easy_cleanup(curl);
+       }
+       #endif
+
+       END_DEBUG_EXCEPTION_HANDLER(errorstream)
+
+       return NULL;
+}
+
 Client::Client(
                IrrlichtDevice *device,
                const char *playername,
@@ -263,8 +299,9 @@ Client::Client(
        m_password(password),
        m_access_denied(false),
        m_media_cache(getMediaCacheDir()),
-       m_media_receive_progress(0),
-       m_media_received(false),
+       m_media_receive_started(false),
+       m_media_count(0),
+       m_media_received_count(0),
        m_itemdef_received(false),
        m_nodedef_received(false),
        m_time_of_day_set(false),
@@ -296,6 +333,9 @@ Client::Client(
 
                m_env.addPlayer(player);
        }
+
+       for (size_t i = 0; i < g_settings->getU16("media_fetch_threads"); ++i)
+               m_media_fetch_threads.push_back(new MediaFetchThread(this));
 }
 
 Client::~Client()
@@ -319,6 +359,10 @@ Client::~Client()
                        delete i->second;
                }
        }
+
+       for (core::list<MediaFetchThread*>::Iterator i = m_media_fetch_threads.begin();
+                       i != m_media_fetch_threads.end(); i++)
+               delete *i;
 }
 
 void Client::connect(Address address)
@@ -730,6 +774,62 @@ void Client::step(float dtime)
                        g_profiler->graphAdd("num_processed_meshes", num_processed_meshes);
        }
 
+       /*
+               Load fetched media
+       */
+       if (m_media_receive_started) {
+               bool all_stopped = true;
+               for (core::list<MediaFetchThread*>::Iterator thread = m_media_fetch_threads.begin();
+                               thread != m_media_fetch_threads.end(); thread++) {
+                       all_stopped &= !(*thread)->IsRunning();
+                       while ((*thread)->m_file_data.size() > 0) {
+                               std::pair <std::string, std::string> out = (*thread)->m_file_data.pop_front();
+                               ++m_media_received_count;
+
+                               bool success = loadMedia(out.second, out.first);
+                               if(success){
+                                       verbosestream<<"Client: Loaded received media: "
+                                                       <<"\""<<out.first<<"\". Caching."<<std::endl;
+                               } else{
+                                       infostream<<"Client: Failed to load received media: "
+                                                       <<"\""<<out.first<<"\". Not caching."<<std::endl;
+                                       continue;
+                               }
+
+                               bool did = fs::CreateAllDirs(getMediaCacheDir());
+                               if(!did){
+                                       errorstream<<"Could not create media cache directory"
+                                                       <<std::endl;
+                               }
+
+                               {
+                                       core::map<std::string, std::string>::Node *n;
+                                       n = m_media_name_sha1_map.find(out.first);
+                                       if(n == NULL)
+                                               errorstream<<"The server sent a file that has not "
+                                                               <<"been announced."<<std::endl;
+                                       else
+                                               m_media_cache.update_sha1(out.second);
+                               }
+                       }
+               }
+               if (all_stopped) {
+                       core::list<MediaRequest> fetch_failed;
+                       for (core::list<MediaFetchThread*>::Iterator thread = m_media_fetch_threads.begin();
+                                       thread != m_media_fetch_threads.end(); thread++) {
+                               for (core::list<MediaRequest>::Iterator request = (*thread)->m_failed.begin();
+                                               request != (*thread)->m_failed.end(); request++)
+                                       fetch_failed.push_back(*request);
+                               (*thread)->m_failed.clear();
+                       }
+                       if (fetch_failed.size() > 0) {
+                               infostream << "Failed to remote-fetch " << fetch_failed.size() << " files. "
+                                               << "Requesting them the usual way." << std::endl;
+                               request_media(fetch_failed);
+                       }
+               }
+       }
+
        /*
                If the server didn't update the inventory in a while, revert
                the local inventory (so the player notices the lag problem
@@ -907,6 +1007,34 @@ void Client::deletingPeer(con::Peer *peer, bool timeout)
                        <<"(timeout="<<timeout<<")"<<std::endl;
 }
 
+/*
+       u16 command
+       u16 number of files requested
+       for each file {
+               u16 length of name
+               string name
+       }
+*/
+void Client::request_media(const core::list<MediaRequest> &file_requests)
+{
+       std::ostringstream os(std::ios_base::binary);
+       writeU16(os, TOSERVER_REQUEST_MEDIA);
+       writeU16(os, file_requests.size());
+
+       for(core::list<MediaRequest>::ConstIterator i = file_requests.begin();
+                       i != file_requests.end(); i++) {
+               os<<serializeString(i->name);
+       }
+
+       // Make data buffer
+       std::string s = os.str();
+       SharedBuffer<u8> data((u8*)s.c_str(), s.size());
+       // Send as reliable
+       Send(0, data, true);
+       infostream<<"Client: Sending media request list to server ("
+                       <<file_requests.size()<<" files)"<<std::endl;
+}
+
 void Client::ReceiveAll()
 {
        DSTACK(__FUNCTION_NAME);
@@ -1514,37 +1642,52 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
                        file_requests.push_back(MediaRequest(name));
                }
 
-               ClientEvent event;
-               event.type = CE_TEXTURES_UPDATED;
-               m_client_event_queue.push_back(event);
+               std::string remote_media = "";
+               try {
+                       remote_media = deSerializeString(is);
+               }
+               catch(SerializationError) {
+                       // not supported by server or turned off
+               }
 
-               /*
-                       u16 command
-                       u16 number of files requested
-                       for each file {
-                               u16 length of name
-                               string name
+               m_media_count = file_requests.size();
+               m_media_receive_started = true;
+
+               if (remote_media == "" || !USE_CURL) {
+                       request_media(file_requests);
+               } else {
+                       #if USE_CURL
+                       core::list<MediaFetchThread*>::Iterator cur = m_media_fetch_threads.begin();
+                       for(core::list<MediaRequest>::Iterator i = file_requests.begin();
+                                       i != file_requests.end(); i++) {
+                               (*cur)->m_file_requests.push_back(*i);
+                               cur++;
+                               if (cur == m_media_fetch_threads.end())
+                                       cur = m_media_fetch_threads.begin();
                        }
-               */
-               std::ostringstream os(std::ios_base::binary);
-               writeU16(os, TOSERVER_REQUEST_MEDIA);
-               writeU16(os, file_requests.size());
+                       for (core::list<MediaFetchThread*>::Iterator i = m_media_fetch_threads.begin();
+                                       i != m_media_fetch_threads.end(); i++) {
+                               (*i)->m_remote_url = remote_media;
+                               (*i)->Start();
+                       }
+                       #endif
 
-               for(core::list<MediaRequest>::Iterator i = file_requests.begin();
-                               i != file_requests.end(); i++) {
-                       os<<serializeString(i->name);
+                       // notify server we received everything
+                       std::ostringstream os(std::ios_base::binary);
+                       writeU16(os, TOSERVER_RECEIVED_MEDIA);
+                       std::string s = os.str();
+                       SharedBuffer<u8> data((u8*)s.c_str(), s.size());
+                       // Send as reliable
+                       Send(0, data, true);
                }
-
-               // Make data buffer
-               std::string s = os.str();
-               SharedBuffer<u8> data((u8*)s.c_str(), s.size());
-               // Send as reliable
-               Send(0, data, true);
-               infostream<<"Client: Sending media request list to server ("
-                               <<file_requests.size()<<" files)"<<std::endl;
+               ClientEvent event;
+               event.type = CE_TEXTURES_UPDATED;
+               m_client_event_queue.push_back(event);
        }
        else if(command == TOCLIENT_MEDIA)
        {
+               if (m_media_count == 0)
+                       return;
                std::string datastring((char*)&data[2], datasize-2);
                std::istringstream is(datastring, std::ios_base::binary);
 
@@ -1566,17 +1709,12 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
                */
                int num_bunches = readU16(is);
                int bunch_i = readU16(is);
-               if(num_bunches >= 2)
-                       m_media_receive_progress = (float)bunch_i / (float)(num_bunches - 1);
-               else
-                       m_media_receive_progress = 1.0;
-               if(bunch_i == num_bunches - 1)
-                       m_media_received = true;
                int num_files = readU32(is);
                infostream<<"Client: Received files: bunch "<<bunch_i<<"/"
                                <<num_bunches<<" files="<<num_files
                                <<" size="<<datasize<<std::endl;
                for(int i=0; i<num_files; i++){
+                       m_media_received_count++;
                        std::string name = deSerializeString(is);
                        std::string data = deSerializeLongString(is);
 
@@ -1762,6 +1900,20 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
                }
                inv->deSerialize(is);
        }
+       else if(command == TOCLIENT_SHOW_FORMSPEC)
+       {
+               std::string datastring((char*)&data[2], datasize-2);
+               std::istringstream is(datastring, std::ios_base::binary);
+
+               std::string formspec = deSerializeLongString(is);
+
+               ClientEvent event;
+               event.type = CE_SHOW_FORMSPEC;
+               // pointer is required as event is a struct only!
+               // adding a std:string to a struct isn't possible
+               event.show_formspec.formspec = new std::string(formspec);
+               m_client_event_queue.push_back(event);
+       }
        else
        {
                infostream<<"Client: Ignoring unknown command "
@@ -1976,10 +2128,24 @@ void Client::sendPlayerPos()
 {
        //JMutexAutoLock envlock(m_env_mutex); //bulk comment-out
        
-       Player *myplayer = m_env.getLocalPlayer();
+       LocalPlayer *myplayer = m_env.getLocalPlayer();
        if(myplayer == NULL)
                return;
-       
+
+       // Save bandwidth by only updating position when something changed
+       if(myplayer->last_position == myplayer->getPosition() &&
+                       myplayer->last_speed == myplayer->getSpeed() &&
+                       myplayer->last_pitch == myplayer->getPitch() &&
+                       myplayer->last_yaw == myplayer->getYaw() &&
+                       myplayer->last_keyPressed == myplayer->keyPressed)
+               return;
+
+       myplayer->last_position = myplayer->getPosition();
+       myplayer->last_speed = myplayer->getSpeed();
+       myplayer->last_pitch = myplayer->getPitch();
+       myplayer->last_yaw = myplayer->getYaw();
+       myplayer->last_keyPressed = myplayer->keyPressed;
+
        u16 our_peer_id;
        {
                //JMutexAutoLock lock(m_con_mutex); //bulk comment-out
@@ -2444,7 +2610,7 @@ void Client::afterContentReceived()
        infostream<<"Client::afterContentReceived() started"<<std::endl;
        assert(m_itemdef_received);
        assert(m_nodedef_received);
-       assert(m_media_received);
+       assert(texturesReceived());
        
        // remove the information about which checksum each texture
        // ought to have