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Dynamic_Add_Media v2 (#11550)
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bcb6565483
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bbfae0cc67
@ -269,27 +269,8 @@ function core.cancel_shutdown_requests()
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end
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-- Callback handling for dynamic_add_media
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local dynamic_add_media_raw = core.dynamic_add_media_raw
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core.dynamic_add_media_raw = nil
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function core.dynamic_add_media(filepath, callback)
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local ret = dynamic_add_media_raw(filepath)
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if ret == false then
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return ret
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end
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if callback == nil then
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core.log("deprecated", "Calling minetest.dynamic_add_media without "..
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"a callback is deprecated and will stop working in future versions.")
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else
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-- At the moment async loading is not actually implemented, so we
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-- immediately call the callback ourselves
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for _, name in ipairs(ret) do
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callback(name)
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end
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end
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return true
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end
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-- Used for callback handling with dynamic_add_media
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core.dynamic_media_callbacks = {}
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-- PNG encoder safety wrapper
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@ -5649,22 +5649,33 @@ Server
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* Returns a code (0: successful, 1: no such player, 2: player is connected)
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* `minetest.remove_player_auth(name)`: remove player authentication data
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* Returns boolean indicating success (false if player nonexistant)
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* `minetest.dynamic_add_media(filepath, callback)`
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* `minetest.dynamic_add_media(options, callback)`
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* `options`: table containing the following parameters
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* `filepath`: path to a media file on the filesystem
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* `callback`: function with arguments `name`, where name is a player name
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(previously there was no callback argument; omitting it is deprecated)
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* Adds the file to the media sent to clients by the server on startup
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and also pushes this file to already connected clients.
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The file must be a supported image, sound or model format. It must not be
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modified, deleted, moved or renamed after calling this function.
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The list of dynamically added media is not persisted.
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* `to_player`: name of the player the media should be sent to instead of
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all players (optional)
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* `ephemeral`: boolean that marks the media as ephemeral,
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it will not be cached on the client (optional, default false)
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* `callback`: function with arguments `name`, which is a player name
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* Pushes the specified media file to client(s). (details below)
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The file must be a supported image, sound or model format.
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Dynamically added media is not persisted between server restarts.
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* Returns false on error, true if the request was accepted
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* The given callback will be called for every player as soon as the
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media is available on the client.
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Old clients that lack support for this feature will not see the media
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unless they reconnect to the server. (callback won't be called)
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* Since media transferred this way currently does not use client caching
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or HTTP transfers, dynamic media should not be used with big files.
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* Details/Notes:
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* If `ephemeral`=false and `to_player` is unset the file is added to the media
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sent to clients on startup, this means the media will appear even on
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old clients if they rejoin the server.
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* If `ephemeral`=false the file must not be modified, deleted, moved or
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renamed after calling this function.
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* Regardless of any use of `ephemeral`, adding media files with the same
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name twice is not possible/guaranteed to work. An exception to this is the
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use of `to_player` to send the same, already existent file to multiple
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chosen players.
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* Clients will attempt to fetch files added this way via remote media,
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this can make transfer of bigger files painless (if set up). Nevertheless
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it is advised not to use dynamic media for big media files.
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Bans
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----
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@ -555,6 +555,29 @@ void Client::step(float dtime)
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m_media_downloader = NULL;
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}
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}
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{
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// Acknowledge dynamic media downloads to server
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std::vector<u32> done;
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for (auto it = m_pending_media_downloads.begin();
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it != m_pending_media_downloads.end();) {
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assert(it->second->isStarted());
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it->second->step(this);
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if (it->second->isDone()) {
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done.emplace_back(it->first);
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it = m_pending_media_downloads.erase(it);
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} else {
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it++;
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}
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if (done.size() == 255) { // maximum in one packet
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sendHaveMedia(done);
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done.clear();
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}
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}
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if (!done.empty())
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sendHaveMedia(done);
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}
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/*
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If the server didn't update the inventory in a while, revert
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@ -770,7 +793,8 @@ void Client::request_media(const std::vector<std::string> &file_requests)
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Send(&pkt);
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infostream << "Client: Sending media request list to server ("
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<< file_requests.size() << " files. packet size)" << std::endl;
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<< file_requests.size() << " files, packet size "
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<< pkt.getSize() << ")" << std::endl;
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}
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void Client::initLocalMapSaving(const Address &address,
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@ -1295,6 +1319,19 @@ void Client::sendPlayerPos()
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Send(&pkt);
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}
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void Client::sendHaveMedia(const std::vector<u32> &tokens)
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{
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NetworkPacket pkt(TOSERVER_HAVE_MEDIA, 1 + tokens.size() * 4);
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sanity_check(tokens.size() < 256);
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pkt << static_cast<u8>(tokens.size());
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for (u32 token : tokens)
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pkt << token;
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Send(&pkt);
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}
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void Client::removeNode(v3s16 p)
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{
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std::map<v3s16, MapBlock*> modified_blocks;
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@ -53,6 +53,7 @@ class ISoundManager;
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class NodeDefManager;
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//class IWritableCraftDefManager;
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class ClientMediaDownloader;
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class SingleMediaDownloader;
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struct MapDrawControl;
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class ModChannelMgr;
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class MtEventManager;
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@ -245,6 +246,7 @@ public:
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void sendDamage(u16 damage);
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void sendRespawn();
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void sendReady();
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void sendHaveMedia(const std::vector<u32> &tokens);
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ClientEnvironment& getEnv() { return m_env; }
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ITextureSource *tsrc() { return getTextureSource(); }
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@ -536,9 +538,13 @@ private:
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bool m_activeobjects_received = false;
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bool m_mods_loaded = false;
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std::vector<std::string> m_remote_media_servers;
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// Media downloader, only exists during init
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ClientMediaDownloader *m_media_downloader;
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// Set of media filenames pushed by server at runtime
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std::unordered_set<std::string> m_media_pushed_files;
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// Pending downloads of dynamic media (key: token)
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std::vector<std::pair<u32, std::unique_ptr<SingleMediaDownloader>>> m_pending_media_downloads;
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// time_of_day speed approximation for old protocol
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bool m_time_of_day_set = false;
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@ -49,7 +49,6 @@ bool clientMediaUpdateCache(const std::string &raw_hash, const std::string &file
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*/
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ClientMediaDownloader::ClientMediaDownloader():
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m_media_cache(getMediaCacheDir()),
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m_httpfetch_caller(HTTPFETCH_DISCARD)
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{
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}
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@ -66,6 +65,12 @@ ClientMediaDownloader::~ClientMediaDownloader()
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delete remote;
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}
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bool ClientMediaDownloader::loadMedia(Client *client, const std::string &data,
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const std::string &name)
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{
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return client->loadMedia(data, name);
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}
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void ClientMediaDownloader::addFile(const std::string &name, const std::string &sha1)
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{
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assert(!m_initial_step_done); // pre-condition
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@ -105,7 +110,7 @@ void ClientMediaDownloader::addRemoteServer(const std::string &baseurl)
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{
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assert(!m_initial_step_done); // pre-condition
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#ifdef USE_CURL
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#ifdef USE_CURL
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if (g_settings->getBool("enable_remote_media_server")) {
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infostream << "Client: Adding remote server \""
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@ -117,13 +122,13 @@ void ClientMediaDownloader::addRemoteServer(const std::string &baseurl)
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m_remotes.push_back(remote);
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}
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#else
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#else
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infostream << "Client: Ignoring remote server \""
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<< baseurl << "\" because cURL support is not compiled in"
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<< std::endl;
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#endif
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#endif
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}
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void ClientMediaDownloader::step(Client *client)
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@ -172,36 +177,21 @@ void ClientMediaDownloader::initialStep(Client *client)
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// Check media cache
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m_uncached_count = m_files.size();
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for (auto &file_it : m_files) {
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std::string name = file_it.first;
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const std::string &name = file_it.first;
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FileStatus *filestatus = file_it.second;
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const std::string &sha1 = filestatus->sha1;
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std::ostringstream tmp_os(std::ios_base::binary);
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bool found_in_cache = m_media_cache.load(hex_encode(sha1), tmp_os);
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// If found in cache, try to load it from there
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if (found_in_cache) {
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bool success = checkAndLoad(name, sha1,
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tmp_os.str(), true, client);
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if (success) {
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if (tryLoadFromCache(name, sha1, client)) {
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filestatus->received = true;
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m_uncached_count--;
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}
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}
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}
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assert(m_uncached_received_count == 0);
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// Create the media cache dir if we are likely to write to it
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if (m_uncached_count != 0) {
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bool did = fs::CreateAllDirs(getMediaCacheDir());
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if (!did) {
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errorstream << "Client: "
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<< "Could not create media cache directory: "
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<< getMediaCacheDir()
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<< std::endl;
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}
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}
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if (m_uncached_count != 0)
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createCacheDirs();
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// If we found all files in the cache, report this fact to the server.
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// If the server reported no remote servers, immediately start
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@ -301,8 +291,7 @@ void ClientMediaDownloader::remoteHashSetReceived(
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// available on this server, add this server
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// to the available_remotes array
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for(std::map<std::string, FileStatus*>::iterator
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it = m_files.upper_bound(m_name_bound);
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for(auto it = m_files.upper_bound(m_name_bound);
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it != m_files.end(); ++it) {
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FileStatus *f = it->second;
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if (!f->received && sha1_set.count(f->sha1))
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@ -328,8 +317,7 @@ void ClientMediaDownloader::remoteMediaReceived(
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std::string name;
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{
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std::unordered_map<unsigned long, std::string>::iterator it =
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m_remote_file_transfers.find(fetch_result.request_id);
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auto it = m_remote_file_transfers.find(fetch_result.request_id);
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assert(it != m_remote_file_transfers.end());
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name = it->second;
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m_remote_file_transfers.erase(it);
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@ -398,8 +386,7 @@ void ClientMediaDownloader::startRemoteMediaTransfers()
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{
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bool changing_name_bound = true;
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for (std::map<std::string, FileStatus*>::iterator
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files_iter = m_files.upper_bound(m_name_bound);
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for (auto files_iter = m_files.upper_bound(m_name_bound);
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files_iter != m_files.end(); ++files_iter) {
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// Abort if active fetch limit is exceeded
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@ -477,19 +464,18 @@ void ClientMediaDownloader::startConventionalTransfers(Client *client)
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}
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}
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void ClientMediaDownloader::conventionalTransferDone(
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bool ClientMediaDownloader::conventionalTransferDone(
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const std::string &name,
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const std::string &data,
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Client *client)
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{
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// Check that file was announced
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std::map<std::string, FileStatus*>::iterator
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file_iter = m_files.find(name);
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auto file_iter = m_files.find(name);
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if (file_iter == m_files.end()) {
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errorstream << "Client: server sent media file that was"
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<< "not announced, ignoring it: \"" << name << "\""
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<< std::endl;
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return;
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return false;
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}
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FileStatus *filestatus = file_iter->second;
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assert(filestatus != NULL);
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@ -499,7 +485,7 @@ void ClientMediaDownloader::conventionalTransferDone(
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errorstream << "Client: server sent media file that we already"
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<< "received, ignoring it: \"" << name << "\""
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<< std::endl;
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return;
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return true;
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}
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// Mark file as received, regardless of whether loading it works and
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@ -512,9 +498,45 @@ void ClientMediaDownloader::conventionalTransferDone(
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// Check that received file matches announced checksum
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// If so, load it
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checkAndLoad(name, filestatus->sha1, data, false, client);
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return true;
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}
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bool ClientMediaDownloader::checkAndLoad(
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/*
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IClientMediaDownloader
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*/
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IClientMediaDownloader::IClientMediaDownloader():
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m_media_cache(getMediaCacheDir()), m_write_to_cache(true)
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{
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}
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void IClientMediaDownloader::createCacheDirs()
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{
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if (!m_write_to_cache)
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return;
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std::string path = getMediaCacheDir();
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if (!fs::CreateAllDirs(path)) {
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errorstream << "Client: Could not create media cache directory: "
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<< path << std::endl;
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}
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}
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bool IClientMediaDownloader::tryLoadFromCache(const std::string &name,
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const std::string &sha1, Client *client)
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{
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std::ostringstream tmp_os(std::ios_base::binary);
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bool found_in_cache = m_media_cache.load(hex_encode(sha1), tmp_os);
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// If found in cache, try to load it from there
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if (found_in_cache)
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return checkAndLoad(name, sha1, tmp_os.str(), true, client);
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return false;
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}
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bool IClientMediaDownloader::checkAndLoad(
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const std::string &name, const std::string &sha1,
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const std::string &data, bool is_from_cache, Client *client)
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{
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@ -544,7 +566,7 @@ bool ClientMediaDownloader::checkAndLoad(
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}
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// Checksum is ok, try loading the file
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bool success = client->loadMedia(data, name);
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bool success = loadMedia(client, data, name);
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if (!success) {
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infostream << "Client: "
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<< "Failed to load " << cached_or_received << " media: "
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@ -559,7 +581,7 @@ bool ClientMediaDownloader::checkAndLoad(
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<< std::endl;
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// Update cache (unless we just loaded the file from the cache)
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if (!is_from_cache)
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if (!is_from_cache && m_write_to_cache)
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m_media_cache.update(sha1_hex, data);
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return true;
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@ -587,12 +609,10 @@ std::string ClientMediaDownloader::serializeRequiredHashSet()
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// Write list of hashes of files that have not been
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// received (found in cache) yet
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for (std::map<std::string, FileStatus*>::iterator
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it = m_files.begin();
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it != m_files.end(); ++it) {
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if (!it->second->received) {
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FATAL_ERROR_IF(it->second->sha1.size() != 20, "Invalid SHA1 size");
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os << it->second->sha1;
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for (const auto &it : m_files) {
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if (!it.second->received) {
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FATAL_ERROR_IF(it.second->sha1.size() != 20, "Invalid SHA1 size");
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os << it.second->sha1;
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}
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}
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@ -628,3 +648,145 @@ void ClientMediaDownloader::deSerializeHashSet(const std::string &data,
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result.insert(data.substr(pos, 20));
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}
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}
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/*
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SingleMediaDownloader
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*/
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SingleMediaDownloader::SingleMediaDownloader(bool write_to_cache):
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m_httpfetch_caller(HTTPFETCH_DISCARD)
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{
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m_write_to_cache = write_to_cache;
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}
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SingleMediaDownloader::~SingleMediaDownloader()
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{
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if (m_httpfetch_caller != HTTPFETCH_DISCARD)
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httpfetch_caller_free(m_httpfetch_caller);
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}
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bool SingleMediaDownloader::loadMedia(Client *client, const std::string &data,
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const std::string &name)
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{
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return client->loadMedia(data, name, true);
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}
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void SingleMediaDownloader::addFile(const std::string &name, const std::string &sha1)
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{
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assert(m_stage == STAGE_INIT); // pre-condition
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assert(!name.empty());
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assert(sha1.size() == 20);
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FATAL_ERROR_IF(!m_file_name.empty(), "Cannot add a second file");
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m_file_name = name;
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m_file_sha1 = sha1;
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}
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void SingleMediaDownloader::addRemoteServer(const std::string &baseurl)
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{
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assert(m_stage == STAGE_INIT); // pre-condition
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if (g_settings->getBool("enable_remote_media_server"))
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m_remotes.emplace_back(baseurl);
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}
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void SingleMediaDownloader::step(Client *client)
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{
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if (m_stage == STAGE_INIT) {
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m_stage = STAGE_CACHE_CHECKED;
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initialStep(client);
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}
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// Remote media: check for completion of fetches
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if (m_httpfetch_caller != HTTPFETCH_DISCARD) {
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HTTPFetchResult fetch_result;
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while (httpfetch_async_get(m_httpfetch_caller, fetch_result)) {
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remoteMediaReceived(fetch_result, client);
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}
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}
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}
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bool SingleMediaDownloader::conventionalTransferDone(const std::string &name,
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const std::string &data, Client *client)
|
||||
{
|
||||
if (name != m_file_name)
|
||||
return false;
|
||||
|
||||
// Mark file as received unconditionally and try to load it
|
||||
m_stage = STAGE_DONE;
|
||||
checkAndLoad(name, m_file_sha1, data, false, client);
|
||||
return true;
|
||||
}
|
||||
|
||||
void SingleMediaDownloader::initialStep(Client *client)
|
||||
{
|
||||
if (tryLoadFromCache(m_file_name, m_file_sha1, client))
|
||||
m_stage = STAGE_DONE;
|
||||
if (isDone())
|
||||
return;
|
||||
|
||||
createCacheDirs();
|
||||
|
||||
// If the server reported no remote servers, immediately fall back to
|
||||
// conventional transfer.
|
||||
if (!USE_CURL || m_remotes.empty()) {
|
||||
startConventionalTransfer(client);
|
||||
} else {
|
||||
// Otherwise start by requesting the file from the first remote media server
|
||||
m_httpfetch_caller = httpfetch_caller_alloc();
|
||||
m_current_remote = 0;
|
||||
startRemoteMediaTransfer();
|
||||
}
|
||||
}
|
||||
|
||||
void SingleMediaDownloader::remoteMediaReceived(
|
||||
const HTTPFetchResult &fetch_result, Client *client)
|
||||
{
|
||||
sanity_check(!isDone());
|
||||
sanity_check(m_current_remote >= 0);
|
||||
|
||||
// If fetch succeeded, try to load it
|
||||
if (fetch_result.succeeded) {
|
||||
bool success = checkAndLoad(m_file_name, m_file_sha1,
|
||||
fetch_result.data, false, client);
|
||||
if (success) {
|
||||
m_stage = STAGE_DONE;
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
// Otherwise try the next remote server or fall back to conventional transfer
|
||||
m_current_remote++;
|
||||
if (m_current_remote >= (int)m_remotes.size()) {
|
||||
infostream << "Client: Failed to remote-fetch \"" << m_file_name
|
||||
<< "\". Requesting it the usual way." << std::endl;
|
||||
m_current_remote = -1;
|
||||
startConventionalTransfer(client);
|
||||
} else {
|
||||
startRemoteMediaTransfer();
|
||||
}
|
||||
}
|
||||
|
||||
void SingleMediaDownloader::startRemoteMediaTransfer()
|
||||
{
|
||||
std::string url = m_remotes.at(m_current_remote) + hex_encode(m_file_sha1);
|
||||
verbosestream << "Client: Requesting remote media file "
|
||||
<< "\"" << m_file_name << "\" " << "\"" << url << "\"" << std::endl;
|
||||
|
||||
HTTPFetchRequest fetch_request;
|
||||
fetch_request.url = url;
|
||||
fetch_request.caller = m_httpfetch_caller;
|
||||
fetch_request.request_id = m_httpfetch_next_id;
|
||||
fetch_request.timeout = g_settings->getS32("curl_file_download_timeout");
|
||||
httpfetch_async(fetch_request);
|
||||
|
||||
m_httpfetch_next_id++;
|
||||
}
|
||||
|
||||
void SingleMediaDownloader::startConventionalTransfer(Client *client)
|
||||
{
|
||||
std::vector<std::string> requests;
|
||||
requests.emplace_back(m_file_name);
|
||||
client->request_media(requests);
|
||||
}
|
||||
|
@ -21,6 +21,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
|
||||
#include "irrlichttypes.h"
|
||||
#include "filecache.h"
|
||||
#include "util/basic_macros.h"
|
||||
#include <ostream>
|
||||
#include <map>
|
||||
#include <set>
|
||||
@ -38,7 +39,62 @@ struct HTTPFetchResult;
|
||||
bool clientMediaUpdateCache(const std::string &raw_hash,
|
||||
const std::string &filedata);
|
||||
|
||||
class ClientMediaDownloader
|
||||
// more of a base class than an interface but this name was most convenient...
|
||||
class IClientMediaDownloader
|
||||
{
|
||||
public:
|
||||
DISABLE_CLASS_COPY(IClientMediaDownloader)
|
||||
|
||||
virtual bool isStarted() const = 0;
|
||||
|
||||
// If this returns true, the downloader is done and can be deleted
|
||||
virtual bool isDone() const = 0;
|
||||
|
||||
// Add a file to the list of required file (but don't fetch it yet)
|
||||
virtual void addFile(const std::string &name, const std::string &sha1) = 0;
|
||||
|
||||
// Add a remote server to the list; ignored if not built with cURL
|
||||
virtual void addRemoteServer(const std::string &baseurl) = 0;
|
||||
|
||||
// Steps the media downloader:
|
||||
// - May load media into client by calling client->loadMedia()
|
||||
// - May check media cache for files
|
||||
// - May add files to media cache
|
||||
// - May start remote transfers by calling httpfetch_async
|
||||
// - May check for completion of current remote transfers
|
||||
// - May start conventional transfers by calling client->request_media()
|
||||
// - May inform server that all media has been loaded
|
||||
// by calling client->received_media()
|
||||
// After step has been called once, don't call addFile/addRemoteServer.
|
||||
virtual void step(Client *client) = 0;
|
||||
|
||||
// Must be called for each file received through TOCLIENT_MEDIA
|
||||
// returns true if this file belongs to this downloader
|
||||
virtual bool conventionalTransferDone(const std::string &name,
|
||||
const std::string &data, Client *client) = 0;
|
||||
|
||||
protected:
|
||||
IClientMediaDownloader();
|
||||
virtual ~IClientMediaDownloader() = default;
|
||||
|
||||
// Forwards the call to the appropriate Client method
|
||||
virtual bool loadMedia(Client *client, const std::string &data,
|
||||
const std::string &name) = 0;
|
||||
|
||||
void createCacheDirs();
|
||||
|
||||
bool tryLoadFromCache(const std::string &name, const std::string &sha1,
|
||||
Client *client);
|
||||
|
||||
bool checkAndLoad(const std::string &name, const std::string &sha1,
|
||||
const std::string &data, bool is_from_cache, Client *client);
|
||||
|
||||
// Filesystem-based media cache
|
||||
FileCache m_media_cache;
|
||||
bool m_write_to_cache;
|
||||
};
|
||||
|
||||
class ClientMediaDownloader : public IClientMediaDownloader
|
||||
{
|
||||
public:
|
||||
ClientMediaDownloader();
|
||||
@ -52,39 +108,29 @@ public:
|
||||
return 0.0f;
|
||||
}
|
||||
|
||||
bool isStarted() const {
|
||||
bool isStarted() const override {
|
||||
return m_initial_step_done;
|
||||
}
|
||||
|
||||
// If this returns true, the downloader is done and can be deleted
|
||||
bool isDone() const {
|
||||
bool isDone() const override {
|
||||
return m_initial_step_done &&
|
||||
m_uncached_received_count == m_uncached_count;
|
||||
}
|
||||
|
||||
// Add a file to the list of required file (but don't fetch it yet)
|
||||
void addFile(const std::string &name, const std::string &sha1);
|
||||
void addFile(const std::string &name, const std::string &sha1) override;
|
||||
|
||||
// Add a remote server to the list; ignored if not built with cURL
|
||||
void addRemoteServer(const std::string &baseurl);
|
||||
void addRemoteServer(const std::string &baseurl) override;
|
||||
|
||||
// Steps the media downloader:
|
||||
// - May load media into client by calling client->loadMedia()
|
||||
// - May check media cache for files
|
||||
// - May add files to media cache
|
||||
// - May start remote transfers by calling httpfetch_async
|
||||
// - May check for completion of current remote transfers
|
||||
// - May start conventional transfers by calling client->request_media()
|
||||
// - May inform server that all media has been loaded
|
||||
// by calling client->received_media()
|
||||
// After step has been called once, don't call addFile/addRemoteServer.
|
||||
void step(Client *client);
|
||||
void step(Client *client) override;
|
||||
|
||||
// Must be called for each file received through TOCLIENT_MEDIA
|
||||
void conventionalTransferDone(
|
||||
bool conventionalTransferDone(
|
||||
const std::string &name,
|
||||
const std::string &data,
|
||||
Client *client);
|
||||
Client *client) override;
|
||||
|
||||
protected:
|
||||
bool loadMedia(Client *client, const std::string &data,
|
||||
const std::string &name) override;
|
||||
|
||||
private:
|
||||
struct FileStatus {
|
||||
@ -107,13 +153,9 @@ private:
|
||||
void startRemoteMediaTransfers();
|
||||
void startConventionalTransfers(Client *client);
|
||||
|
||||
bool checkAndLoad(const std::string &name, const std::string &sha1,
|
||||
const std::string &data, bool is_from_cache,
|
||||
Client *client);
|
||||
|
||||
std::string serializeRequiredHashSet();
|
||||
static void deSerializeHashSet(const std::string &data,
|
||||
std::set<std::string> &result);
|
||||
std::string serializeRequiredHashSet();
|
||||
|
||||
// Maps filename to file status
|
||||
std::map<std::string, FileStatus*> m_files;
|
||||
@ -121,9 +163,6 @@ private:
|
||||
// Array of remote media servers
|
||||
std::vector<RemoteServerStatus*> m_remotes;
|
||||
|
||||
// Filesystem-based media cache
|
||||
FileCache m_media_cache;
|
||||
|
||||
// Has an attempt been made to load media files from the file cache?
|
||||
// Have hash sets been requested from remote servers?
|
||||
bool m_initial_step_done = false;
|
||||
@ -149,3 +188,63 @@ private:
|
||||
std::string m_name_bound = "";
|
||||
|
||||
};
|
||||
|
||||
// A media downloader that only downloads a single file.
|
||||
// It does/doesn't do several things the normal downloader does:
|
||||
// - won't fetch hash sets from remote servers
|
||||
// - will mark loaded media as coming from file push
|
||||
// - writing to file cache is optional
|
||||
class SingleMediaDownloader : public IClientMediaDownloader
|
||||
{
|
||||
public:
|
||||
SingleMediaDownloader(bool write_to_cache);
|
||||
~SingleMediaDownloader();
|
||||
|
||||
bool isStarted() const override {
|
||||
return m_stage > STAGE_INIT;
|
||||
}
|
||||
|
||||
bool isDone() const override {
|
||||
return m_stage >= STAGE_DONE;
|
||||
}
|
||||
|
||||
void addFile(const std::string &name, const std::string &sha1) override;
|
||||
|
||||
void addRemoteServer(const std::string &baseurl) override;
|
||||
|
||||
void step(Client *client) override;
|
||||
|
||||
bool conventionalTransferDone(const std::string &name,
|
||||
const std::string &data, Client *client) override;
|
||||
|
||||
protected:
|
||||
bool loadMedia(Client *client, const std::string &data,
|
||||
const std::string &name) override;
|
||||
|
||||
private:
|
||||
void initialStep(Client *client);
|
||||
void remoteMediaReceived(const HTTPFetchResult &fetch_result, Client *client);
|
||||
void startRemoteMediaTransfer();
|
||||
void startConventionalTransfer(Client *client);
|
||||
|
||||
enum Stage {
|
||||
STAGE_INIT,
|
||||
STAGE_CACHE_CHECKED, // we have tried to load the file from cache
|
||||
STAGE_DONE
|
||||
};
|
||||
|
||||
// Information about the one file we want to fetch
|
||||
std::string m_file_name;
|
||||
std::string m_file_sha1;
|
||||
s32 m_current_remote;
|
||||
|
||||
// Array of remote media servers
|
||||
std::vector<std::string> m_remotes;
|
||||
|
||||
enum Stage m_stage = STAGE_INIT;
|
||||
|
||||
// Status of remote transfers
|
||||
unsigned long m_httpfetch_caller;
|
||||
unsigned long m_httpfetch_next_id = 0;
|
||||
|
||||
};
|
||||
|
@ -21,8 +21,10 @@ with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
#include "util/string.h"
|
||||
#include <iostream>
|
||||
#include <cstdio>
|
||||
#include <cstdlib>
|
||||
#include <cstring>
|
||||
#include <cerrno>
|
||||
#include <unistd.h>
|
||||
#include <fstream>
|
||||
#include "log.h"
|
||||
#include "config.h"
|
||||
@ -811,5 +813,15 @@ bool Rename(const std::string &from, const std::string &to)
|
||||
return rename(from.c_str(), to.c_str()) == 0;
|
||||
}
|
||||
|
||||
std::string CreateTempFile()
|
||||
{
|
||||
std::string path = TempPath() + DIR_DELIM "MT_XXXXXX";
|
||||
int fd = mkstemp(&path[0]); // modifies path
|
||||
if (fd == -1)
|
||||
return "";
|
||||
close(fd);
|
||||
return path;
|
||||
}
|
||||
|
||||
} // namespace fs
|
||||
|
||||
|
@ -71,6 +71,10 @@ bool DeleteSingleFileOrEmptyDirectory(const std::string &path);
|
||||
// Returns path to temp directory, can return "" on error
|
||||
std::string TempPath();
|
||||
|
||||
// Returns path to securely-created temporary file (will already exist when this function returns)
|
||||
// can return "" on error
|
||||
std::string CreateTempFile();
|
||||
|
||||
/* Returns a list of subdirectories, including the path itself, but excluding
|
||||
hidden directories (whose names start with . or _)
|
||||
*/
|
||||
|
@ -204,7 +204,7 @@ const ServerCommandFactory serverCommandFactoryTable[TOSERVER_NUM_MSG_TYPES] =
|
||||
null_command_factory, // 0x3e
|
||||
null_command_factory, // 0x3f
|
||||
{ "TOSERVER_REQUEST_MEDIA", 1, true }, // 0x40
|
||||
null_command_factory, // 0x41
|
||||
{ "TOSERVER_HAVE_MEDIA", 2, true }, // 0x41
|
||||
null_command_factory, // 0x42
|
||||
{ "TOSERVER_CLIENT_READY", 1, true }, // 0x43
|
||||
null_command_factory, // 0x44
|
||||
|
@ -670,20 +670,18 @@ void Client::handleCommand_AnnounceMedia(NetworkPacket* pkt)
|
||||
m_media_downloader->addFile(name, sha1_raw);
|
||||
}
|
||||
|
||||
try {
|
||||
{
|
||||
std::string str;
|
||||
|
||||
*pkt >> str;
|
||||
|
||||
Strfnd sf(str);
|
||||
while(!sf.at_end()) {
|
||||
while (!sf.at_end()) {
|
||||
std::string baseurl = trim(sf.next(","));
|
||||
if (!baseurl.empty())
|
||||
if (!baseurl.empty()) {
|
||||
m_remote_media_servers.emplace_back(baseurl);
|
||||
m_media_downloader->addRemoteServer(baseurl);
|
||||
}
|
||||
}
|
||||
catch(SerializationError& e) {
|
||||
// not supported by server or turned off
|
||||
}
|
||||
|
||||
m_media_downloader->step(this);
|
||||
@ -716,31 +714,38 @@ void Client::handleCommand_Media(NetworkPacket* pkt)
|
||||
if (num_files == 0)
|
||||
return;
|
||||
|
||||
if (!m_media_downloader || !m_media_downloader->isStarted()) {
|
||||
const char *problem = m_media_downloader ?
|
||||
"media has not been requested" :
|
||||
"all media has been received already";
|
||||
errorstream << "Client: Received media but "
|
||||
<< problem << "! "
|
||||
<< " bunch " << bunch_i << "/" << num_bunches
|
||||
<< " files=" << num_files
|
||||
<< " size=" << pkt->getSize() << std::endl;
|
||||
return;
|
||||
}
|
||||
bool init_phase = m_media_downloader && m_media_downloader->isStarted();
|
||||
|
||||
if (init_phase) {
|
||||
// Mesh update thread must be stopped while
|
||||
// updating content definitions
|
||||
sanity_check(!m_mesh_update_thread.isRunning());
|
||||
}
|
||||
|
||||
for (u32 i=0; i < num_files; i++) {
|
||||
std::string name;
|
||||
for (u32 i = 0; i < num_files; i++) {
|
||||
std::string name, data;
|
||||
|
||||
*pkt >> name;
|
||||
data = pkt->readLongString();
|
||||
|
||||
std::string data = pkt->readLongString();
|
||||
|
||||
m_media_downloader->conventionalTransferDone(
|
||||
name, data, this);
|
||||
bool ok = false;
|
||||
if (init_phase) {
|
||||
ok = m_media_downloader->conventionalTransferDone(name, data, this);
|
||||
} else {
|
||||
// Check pending dynamic transfers, one of them must be it
|
||||
for (const auto &it : m_pending_media_downloads) {
|
||||
if (it.second->conventionalTransferDone(name, data, this)) {
|
||||
ok = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (!ok) {
|
||||
errorstream << "Client: Received media \"" << name
|
||||
<< "\" but no downloads pending. " << num_bunches << " bunches, "
|
||||
<< num_files << " in this one. (init_phase=" << init_phase
|
||||
<< ")" << std::endl;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -1497,25 +1502,38 @@ void Client::handleCommand_PlayerSpeed(NetworkPacket *pkt)
|
||||
void Client::handleCommand_MediaPush(NetworkPacket *pkt)
|
||||
{
|
||||
std::string raw_hash, filename, filedata;
|
||||
u32 token;
|
||||
bool cached;
|
||||
|
||||
*pkt >> raw_hash >> filename >> cached;
|
||||
if (m_proto_ver >= 40)
|
||||
*pkt >> token;
|
||||
else
|
||||
filedata = pkt->readLongString();
|
||||
|
||||
if (raw_hash.size() != 20 || filedata.empty() || filename.empty() ||
|
||||
if (raw_hash.size() != 20 || filename.empty() ||
|
||||
(m_proto_ver < 40 && filedata.empty()) ||
|
||||
!string_allowed(filename, TEXTURENAME_ALLOWED_CHARS)) {
|
||||
throw PacketError("Illegal filename, data or hash");
|
||||
}
|
||||
|
||||
verbosestream << "Server pushes media file \"" << filename << "\" with "
|
||||
<< filedata.size() << " bytes of data (cached=" << cached
|
||||
<< ")" << std::endl;
|
||||
verbosestream << "Server pushes media file \"" << filename << "\" ";
|
||||
if (filedata.empty())
|
||||
verbosestream << "to be fetched ";
|
||||
else
|
||||
verbosestream << "with " << filedata.size() << " bytes ";
|
||||
verbosestream << "(cached=" << cached << ")" << std::endl;
|
||||
|
||||
if (m_media_pushed_files.count(filename) != 0) {
|
||||
// Silently ignore for synchronization purposes
|
||||
// Ignore (but acknowledge). Previously this was for sync purposes,
|
||||
// but even in new versions media cannot be replaced at runtime.
|
||||
if (m_proto_ver >= 40)
|
||||
sendHaveMedia({ token });
|
||||
return;
|
||||
}
|
||||
|
||||
if (!filedata.empty()) {
|
||||
// LEGACY CODEPATH
|
||||
// Compute and check checksum of data
|
||||
std::string computed_hash;
|
||||
{
|
||||
@ -1537,6 +1555,19 @@ void Client::handleCommand_MediaPush(NetworkPacket *pkt)
|
||||
// Cache file for the next time when this client joins the same server
|
||||
if (cached)
|
||||
clientMediaUpdateCache(raw_hash, filedata);
|
||||
return;
|
||||
}
|
||||
|
||||
m_media_pushed_files.insert(filename);
|
||||
|
||||
// create a downloader for this file
|
||||
auto downloader = new SingleMediaDownloader(cached);
|
||||
m_pending_media_downloads.emplace_back(token, downloader);
|
||||
downloader->addFile(filename, raw_hash);
|
||||
for (const auto &baseurl : m_remote_media_servers)
|
||||
downloader->addRemoteServer(baseurl);
|
||||
|
||||
downloader->step(this);
|
||||
}
|
||||
|
||||
/*
|
||||
|
@ -207,6 +207,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
Minimap modes
|
||||
PROTOCOL VERSION 40:
|
||||
Added 'basic_debug' privilege
|
||||
TOCLIENT_MEDIA_PUSH changed, TOSERVER_HAVE_MEDIA added
|
||||
*/
|
||||
|
||||
#define LATEST_PROTOCOL_VERSION 40
|
||||
@ -317,9 +318,8 @@ enum ToClientCommand
|
||||
/*
|
||||
std::string raw_hash
|
||||
std::string filename
|
||||
u32 callback_token
|
||||
bool should_be_cached
|
||||
u32 len
|
||||
char filedata[len]
|
||||
*/
|
||||
|
||||
// (oops, there is some gap here)
|
||||
@ -938,7 +938,13 @@ enum ToServerCommand
|
||||
}
|
||||
*/
|
||||
|
||||
TOSERVER_RECEIVED_MEDIA = 0x41, // Obsolete
|
||||
TOSERVER_HAVE_MEDIA = 0x41,
|
||||
/*
|
||||
u8 number of callback tokens
|
||||
for each:
|
||||
u32 token
|
||||
*/
|
||||
|
||||
TOSERVER_BREATH = 0x42, // Obsolete
|
||||
|
||||
TOSERVER_CLIENT_READY = 0x43,
|
||||
|
@ -89,7 +89,7 @@ const ToServerCommandHandler toServerCommandTable[TOSERVER_NUM_MSG_TYPES] =
|
||||
null_command_handler, // 0x3e
|
||||
null_command_handler, // 0x3f
|
||||
{ "TOSERVER_REQUEST_MEDIA", TOSERVER_STATE_STARTUP, &Server::handleCommand_RequestMedia }, // 0x40
|
||||
null_command_handler, // 0x41
|
||||
{ "TOSERVER_HAVE_MEDIA", TOSERVER_STATE_INGAME, &Server::handleCommand_HaveMedia }, // 0x41
|
||||
null_command_handler, // 0x42
|
||||
{ "TOSERVER_CLIENT_READY", TOSERVER_STATE_STARTUP, &Server::handleCommand_ClientReady }, // 0x43
|
||||
null_command_handler, // 0x44
|
||||
@ -167,7 +167,7 @@ const ClientCommandFactory clientCommandFactoryTable[TOCLIENT_NUM_MSG_TYPES] =
|
||||
{ "TOCLIENT_TIME_OF_DAY", 0, true }, // 0x29
|
||||
{ "TOCLIENT_CSM_RESTRICTION_FLAGS", 0, true }, // 0x2A
|
||||
{ "TOCLIENT_PLAYER_SPEED", 0, true }, // 0x2B
|
||||
{ "TOCLIENT_MEDIA_PUSH", 0, true }, // 0x2C (sent over channel 1 too)
|
||||
{ "TOCLIENT_MEDIA_PUSH", 0, true }, // 0x2C (sent over channel 1 too if legacy)
|
||||
null_command_factory, // 0x2D
|
||||
null_command_factory, // 0x2E
|
||||
{ "TOCLIENT_CHAT_MESSAGE", 0, true }, // 0x2F
|
||||
|
@ -362,16 +362,15 @@ void Server::handleCommand_RequestMedia(NetworkPacket* pkt)
|
||||
session_t peer_id = pkt->getPeerId();
|
||||
infostream << "Sending " << numfiles << " files to " <<
|
||||
getPlayerName(peer_id) << std::endl;
|
||||
verbosestream << "TOSERVER_REQUEST_MEDIA: " << std::endl;
|
||||
verbosestream << "TOSERVER_REQUEST_MEDIA: requested file(s)" << std::endl;
|
||||
|
||||
for (u16 i = 0; i < numfiles; i++) {
|
||||
std::string name;
|
||||
|
||||
*pkt >> name;
|
||||
|
||||
tosend.push_back(name);
|
||||
verbosestream << "TOSERVER_REQUEST_MEDIA: requested file "
|
||||
<< name << std::endl;
|
||||
tosend.emplace_back(name);
|
||||
verbosestream << " " << name << std::endl;
|
||||
}
|
||||
|
||||
sendRequestedMedia(peer_id, tosend);
|
||||
@ -1801,3 +1800,30 @@ void Server::handleCommand_ModChannelMsg(NetworkPacket *pkt)
|
||||
|
||||
broadcastModChannelMessage(channel_name, channel_msg, peer_id);
|
||||
}
|
||||
|
||||
void Server::handleCommand_HaveMedia(NetworkPacket *pkt)
|
||||
{
|
||||
std::vector<u32> tokens;
|
||||
u8 numtokens;
|
||||
|
||||
*pkt >> numtokens;
|
||||
for (u16 i = 0; i < numtokens; i++) {
|
||||
u32 n;
|
||||
*pkt >> n;
|
||||
tokens.emplace_back(n);
|
||||
}
|
||||
|
||||
const session_t peer_id = pkt->getPeerId();
|
||||
auto player = m_env->getPlayer(peer_id);
|
||||
|
||||
for (const u32 token : tokens) {
|
||||
auto it = m_pending_dyn_media.find(token);
|
||||
if (it == m_pending_dyn_media.end())
|
||||
continue;
|
||||
if (it->second.waiting_players.count(peer_id)) {
|
||||
it->second.waiting_players.erase(peer_id);
|
||||
if (player)
|
||||
getScriptIface()->on_dynamic_media_added(token, player->getName());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
@ -20,6 +20,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
#include "cpp_api/s_server.h"
|
||||
#include "cpp_api/s_internal.h"
|
||||
#include "common/c_converter.h"
|
||||
#include "util/numeric.h" // myrand
|
||||
|
||||
bool ScriptApiServer::getAuth(const std::string &playername,
|
||||
std::string *dst_password,
|
||||
@ -196,3 +197,68 @@ std::string ScriptApiServer::formatChatMessage(const std::string &name,
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
u32 ScriptApiServer::allocateDynamicMediaCallback(int f_idx)
|
||||
{
|
||||
lua_State *L = getStack();
|
||||
|
||||
if (f_idx < 0)
|
||||
f_idx = lua_gettop(L) + f_idx + 1;
|
||||
|
||||
lua_getglobal(L, "core");
|
||||
lua_getfield(L, -1, "dynamic_media_callbacks");
|
||||
luaL_checktype(L, -1, LUA_TTABLE);
|
||||
|
||||
// Find a randomly generated token that doesn't exist yet
|
||||
int tries = 100;
|
||||
u32 token;
|
||||
while (1) {
|
||||
token = myrand();
|
||||
lua_rawgeti(L, -2, token);
|
||||
bool is_free = lua_isnil(L, -1);
|
||||
lua_pop(L, 1);
|
||||
if (is_free)
|
||||
break;
|
||||
if (--tries < 0)
|
||||
FATAL_ERROR("Ran out of callbacks IDs?!");
|
||||
}
|
||||
|
||||
// core.dynamic_media_callbacks[token] = callback_func
|
||||
lua_pushvalue(L, f_idx);
|
||||
lua_rawseti(L, -2, token);
|
||||
|
||||
lua_pop(L, 2);
|
||||
|
||||
verbosestream << "allocateDynamicMediaCallback() = " << token << std::endl;
|
||||
return token;
|
||||
}
|
||||
|
||||
void ScriptApiServer::freeDynamicMediaCallback(u32 token)
|
||||
{
|
||||
lua_State *L = getStack();
|
||||
|
||||
verbosestream << "freeDynamicMediaCallback(" << token << ")" << std::endl;
|
||||
|
||||
// core.dynamic_media_callbacks[token] = nil
|
||||
lua_getglobal(L, "core");
|
||||
lua_getfield(L, -1, "dynamic_media_callbacks");
|
||||
luaL_checktype(L, -1, LUA_TTABLE);
|
||||
lua_pushnil(L);
|
||||
lua_rawseti(L, -2, token);
|
||||
lua_pop(L, 2);
|
||||
}
|
||||
|
||||
void ScriptApiServer::on_dynamic_media_added(u32 token, const char *playername)
|
||||
{
|
||||
SCRIPTAPI_PRECHECKHEADER
|
||||
|
||||
int error_handler = PUSH_ERROR_HANDLER(L);
|
||||
lua_getglobal(L, "core");
|
||||
lua_getfield(L, -1, "dynamic_media_callbacks");
|
||||
luaL_checktype(L, -1, LUA_TTABLE);
|
||||
lua_rawgeti(L, -1, token);
|
||||
luaL_checktype(L, -1, LUA_TFUNCTION);
|
||||
|
||||
lua_pushstring(L, playername);
|
||||
PCALL_RES(lua_pcall(L, 1, 0, error_handler));
|
||||
}
|
||||
|
@ -49,6 +49,12 @@ public:
|
||||
const std::string &password);
|
||||
bool setPassword(const std::string &playername,
|
||||
const std::string &password);
|
||||
|
||||
/* dynamic media handling */
|
||||
u32 allocateDynamicMediaCallback(int f_idx);
|
||||
void freeDynamicMediaCallback(u32 token);
|
||||
void on_dynamic_media_added(u32 token, const char *playername);
|
||||
|
||||
private:
|
||||
void getAuthHandler();
|
||||
void readPrivileges(int index, std::set<std::string> &result);
|
||||
|
@ -453,29 +453,37 @@ int ModApiServer::l_sound_fade(lua_State *L)
|
||||
}
|
||||
|
||||
// dynamic_add_media(filepath)
|
||||
int ModApiServer::l_dynamic_add_media_raw(lua_State *L)
|
||||
int ModApiServer::l_dynamic_add_media(lua_State *L)
|
||||
{
|
||||
NO_MAP_LOCK_REQUIRED;
|
||||
|
||||
if (!getEnv(L))
|
||||
throw LuaError("Dynamic media cannot be added before server has started up");
|
||||
Server *server = getServer(L);
|
||||
|
||||
std::string filepath;
|
||||
std::string to_player;
|
||||
bool ephemeral = false;
|
||||
|
||||
if (lua_istable(L, 1)) {
|
||||
getstringfield(L, 1, "filepath", filepath);
|
||||
getstringfield(L, 1, "to_player", to_player);
|
||||
getboolfield(L, 1, "ephemeral", ephemeral);
|
||||
} else {
|
||||
filepath = readParam<std::string>(L, 1);
|
||||
}
|
||||
if (filepath.empty())
|
||||
luaL_typerror(L, 1, "non-empty string");
|
||||
luaL_checktype(L, 2, LUA_TFUNCTION);
|
||||
|
||||
std::string filepath = readParam<std::string>(L, 1);
|
||||
CHECK_SECURE_PATH(L, filepath.c_str(), false);
|
||||
|
||||
std::vector<RemotePlayer*> sent_to;
|
||||
bool ok = getServer(L)->dynamicAddMedia(filepath, sent_to);
|
||||
if (ok) {
|
||||
// (see wrapper code in builtin)
|
||||
lua_createtable(L, sent_to.size(), 0);
|
||||
int i = 0;
|
||||
for (RemotePlayer *player : sent_to) {
|
||||
lua_pushstring(L, player->getName());
|
||||
lua_rawseti(L, -2, ++i);
|
||||
}
|
||||
} else {
|
||||
lua_pushboolean(L, false);
|
||||
}
|
||||
u32 token = server->getScriptIface()->allocateDynamicMediaCallback(2);
|
||||
|
||||
bool ok = server->dynamicAddMedia(filepath, token, to_player, ephemeral);
|
||||
if (!ok)
|
||||
server->getScriptIface()->freeDynamicMediaCallback(token);
|
||||
lua_pushboolean(L, ok);
|
||||
|
||||
return 1;
|
||||
}
|
||||
@ -519,7 +527,7 @@ void ModApiServer::Initialize(lua_State *L, int top)
|
||||
API_FCT(sound_play);
|
||||
API_FCT(sound_stop);
|
||||
API_FCT(sound_fade);
|
||||
API_FCT(dynamic_add_media_raw);
|
||||
API_FCT(dynamic_add_media);
|
||||
|
||||
API_FCT(get_player_information);
|
||||
API_FCT(get_player_privs);
|
||||
|
@ -71,7 +71,7 @@ private:
|
||||
static int l_sound_fade(lua_State *L);
|
||||
|
||||
// dynamic_add_media(filepath)
|
||||
static int l_dynamic_add_media_raw(lua_State *L);
|
||||
static int l_dynamic_add_media(lua_State *L);
|
||||
|
||||
// get_player_privs(name, text)
|
||||
static int l_get_player_privs(lua_State *L);
|
||||
|
177
src/server.cpp
177
src/server.cpp
@ -665,6 +665,17 @@ void Server::AsyncRunStep(bool initial_step)
|
||||
} else {
|
||||
m_lag_gauge->increment(dtime/100);
|
||||
}
|
||||
|
||||
{
|
||||
float &counter = m_step_pending_dyn_media_timer;
|
||||
counter += dtime;
|
||||
if (counter >= 5.0f) {
|
||||
stepPendingDynMediaCallbacks(counter);
|
||||
counter = 0;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
#if USE_CURL
|
||||
// send masterserver announce
|
||||
{
|
||||
@ -2527,6 +2538,8 @@ void Server::sendMediaAnnouncement(session_t peer_id, const std::string &lang_co
|
||||
std::string lang_suffix;
|
||||
lang_suffix.append(".").append(lang_code).append(".tr");
|
||||
for (const auto &i : m_media) {
|
||||
if (i.second.no_announce)
|
||||
continue;
|
||||
if (str_ends_with(i.first, ".tr") && !str_ends_with(i.first, lang_suffix))
|
||||
continue;
|
||||
media_sent++;
|
||||
@ -2535,6 +2548,8 @@ void Server::sendMediaAnnouncement(session_t peer_id, const std::string &lang_co
|
||||
pkt << media_sent;
|
||||
|
||||
for (const auto &i : m_media) {
|
||||
if (i.second.no_announce)
|
||||
continue;
|
||||
if (str_ends_with(i.first, ".tr") && !str_ends_with(i.first, lang_suffix))
|
||||
continue;
|
||||
pkt << i.first << i.second.sha1_digest;
|
||||
@ -2553,11 +2568,9 @@ struct SendableMedia
|
||||
std::string path;
|
||||
std::string data;
|
||||
|
||||
SendableMedia(const std::string &name_="", const std::string &path_="",
|
||||
const std::string &data_=""):
|
||||
name(name_),
|
||||
path(path_),
|
||||
data(data_)
|
||||
SendableMedia(const std::string &name, const std::string &path,
|
||||
std::string &&data):
|
||||
name(name), path(path), data(std::move(data))
|
||||
{}
|
||||
};
|
||||
|
||||
@ -2584,40 +2597,19 @@ void Server::sendRequestedMedia(session_t peer_id,
|
||||
continue;
|
||||
}
|
||||
|
||||
//TODO get path + name
|
||||
std::string tpath = m_media[name].path;
|
||||
const auto &m = m_media[name];
|
||||
|
||||
// Read data
|
||||
std::ifstream fis(tpath.c_str(), std::ios_base::binary);
|
||||
if(!fis.good()){
|
||||
errorstream<<"Server::sendRequestedMedia(): Could not open \""
|
||||
<<tpath<<"\" for reading"<<std::endl;
|
||||
std::string data;
|
||||
if (!fs::ReadFile(m.path, data)) {
|
||||
errorstream << "Server::sendRequestedMedia(): Failed to read \""
|
||||
<< name << "\"" << std::endl;
|
||||
continue;
|
||||
}
|
||||
std::ostringstream tmp_os(std::ios_base::binary);
|
||||
bool bad = false;
|
||||
for(;;) {
|
||||
char buf[1024];
|
||||
fis.read(buf, 1024);
|
||||
std::streamsize len = fis.gcount();
|
||||
tmp_os.write(buf, len);
|
||||
file_size_bunch_total += len;
|
||||
if(fis.eof())
|
||||
break;
|
||||
if(!fis.good()) {
|
||||
bad = true;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (bad) {
|
||||
errorstream<<"Server::sendRequestedMedia(): Failed to read \""
|
||||
<<name<<"\""<<std::endl;
|
||||
continue;
|
||||
}
|
||||
/*infostream<<"Server::sendRequestedMedia(): Loaded \""
|
||||
<<tname<<"\""<<std::endl;*/
|
||||
file_size_bunch_total += data.size();
|
||||
|
||||
// Put in list
|
||||
file_bunches[file_bunches.size()-1].emplace_back(name, tpath, tmp_os.str());
|
||||
file_bunches.back().emplace_back(name, m.path, std::move(data));
|
||||
|
||||
// Start next bunch if got enough data
|
||||
if(file_size_bunch_total >= bytes_per_bunch) {
|
||||
@ -2660,6 +2652,33 @@ void Server::sendRequestedMedia(session_t peer_id,
|
||||
}
|
||||
}
|
||||
|
||||
void Server::stepPendingDynMediaCallbacks(float dtime)
|
||||
{
|
||||
MutexAutoLock lock(m_env_mutex);
|
||||
|
||||
for (auto it = m_pending_dyn_media.begin(); it != m_pending_dyn_media.end();) {
|
||||
it->second.expiry_timer -= dtime;
|
||||
bool del = it->second.waiting_players.empty() || it->second.expiry_timer < 0;
|
||||
|
||||
if (!del) {
|
||||
it++;
|
||||
continue;
|
||||
}
|
||||
|
||||
const auto &name = it->second.filename;
|
||||
if (!name.empty()) {
|
||||
assert(m_media.count(name));
|
||||
// if no_announce isn't set we're definitely deleting the wrong file!
|
||||
sanity_check(m_media[name].no_announce);
|
||||
|
||||
fs::DeleteSingleFileOrEmptyDirectory(m_media[name].path);
|
||||
m_media.erase(name);
|
||||
}
|
||||
getScriptIface()->freeDynamicMediaCallback(it->first);
|
||||
it = m_pending_dyn_media.erase(it);
|
||||
}
|
||||
}
|
||||
|
||||
void Server::SendMinimapModes(session_t peer_id,
|
||||
std::vector<MinimapMode> &modes, size_t wanted_mode)
|
||||
{
|
||||
@ -3457,15 +3476,19 @@ void Server::deleteParticleSpawner(const std::string &playername, u32 id)
|
||||
SendDeleteParticleSpawner(peer_id, id);
|
||||
}
|
||||
|
||||
bool Server::dynamicAddMedia(const std::string &filepath,
|
||||
std::vector<RemotePlayer*> &sent_to)
|
||||
bool Server::dynamicAddMedia(std::string filepath,
|
||||
const u32 token, const std::string &to_player, bool ephemeral)
|
||||
{
|
||||
std::string filename = fs::GetFilenameFromPath(filepath.c_str());
|
||||
if (m_media.find(filename) != m_media.end()) {
|
||||
auto it = m_media.find(filename);
|
||||
if (it != m_media.end()) {
|
||||
// Allow the same path to be "added" again in certain conditions
|
||||
if (ephemeral || it->second.path != filepath) {
|
||||
errorstream << "Server::dynamicAddMedia(): file \"" << filename
|
||||
<< "\" already exists in media cache" << std::endl;
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
// Load the file and add it to our media cache
|
||||
std::string filedata, raw_hash;
|
||||
@ -3473,35 +3496,91 @@ bool Server::dynamicAddMedia(const std::string &filepath,
|
||||
if (!ok)
|
||||
return false;
|
||||
|
||||
if (ephemeral) {
|
||||
// Create a copy of the file and swap out the path, this removes the
|
||||
// requirement that mods keep the file accessible at the original path.
|
||||
filepath = fs::CreateTempFile();
|
||||
bool ok = ([&] () -> bool {
|
||||
if (filepath.empty())
|
||||
return false;
|
||||
std::ofstream os(filepath.c_str(), std::ios::binary);
|
||||
if (!os.good())
|
||||
return false;
|
||||
os << filedata;
|
||||
os.close();
|
||||
return !os.fail();
|
||||
})();
|
||||
if (!ok) {
|
||||
errorstream << "Server: failed to create a copy of media file "
|
||||
<< "\"" << filename << "\"" << std::endl;
|
||||
m_media.erase(filename);
|
||||
return false;
|
||||
}
|
||||
verbosestream << "Server: \"" << filename << "\" temporarily copied to "
|
||||
<< filepath << std::endl;
|
||||
|
||||
m_media[filename].path = filepath;
|
||||
m_media[filename].no_announce = true;
|
||||
// stepPendingDynMediaCallbacks will clean this up later.
|
||||
} else if (!to_player.empty()) {
|
||||
m_media[filename].no_announce = true;
|
||||
}
|
||||
|
||||
// Push file to existing clients
|
||||
NetworkPacket pkt(TOCLIENT_MEDIA_PUSH, 0);
|
||||
pkt << raw_hash << filename << (bool) true;
|
||||
pkt.putLongString(filedata);
|
||||
pkt << raw_hash << filename << (bool)ephemeral;
|
||||
|
||||
NetworkPacket legacy_pkt = pkt;
|
||||
|
||||
// Newer clients get asked to fetch the file (asynchronous)
|
||||
pkt << token;
|
||||
// Older clients have an awful hack that just throws the data at them
|
||||
legacy_pkt.putLongString(filedata);
|
||||
|
||||
std::unordered_set<session_t> delivered, waiting;
|
||||
m_clients.lock();
|
||||
for (auto &pair : m_clients.getClientList()) {
|
||||
if (pair.second->getState() < CS_DefinitionsSent)
|
||||
continue;
|
||||
if (pair.second->net_proto_version < 39)
|
||||
const auto proto_ver = pair.second->net_proto_version;
|
||||
if (proto_ver < 39)
|
||||
continue;
|
||||
|
||||
if (auto player = m_env->getPlayer(pair.second->peer_id))
|
||||
sent_to.emplace_back(player);
|
||||
const session_t peer_id = pair.second->peer_id;
|
||||
if (!to_player.empty() && getPlayerName(peer_id) != to_player)
|
||||
continue;
|
||||
|
||||
if (proto_ver < 40) {
|
||||
delivered.emplace(peer_id);
|
||||
/*
|
||||
FIXME: this is a very awful hack
|
||||
The network layer only guarantees ordered delivery inside a channel.
|
||||
Since the very next packet could be one that uses the media, we have
|
||||
to push the media over ALL channels to ensure it is processed before
|
||||
it is used.
|
||||
In practice this means we have to send it twice:
|
||||
- channel 1 (HUD)
|
||||
- channel 0 (everything else: e.g. play_sound, object messages)
|
||||
it is used. In practice this means channels 1 and 0.
|
||||
*/
|
||||
m_clients.send(pair.second->peer_id, 1, &pkt, true);
|
||||
m_clients.send(pair.second->peer_id, 0, &pkt, true);
|
||||
m_clients.send(peer_id, 1, &legacy_pkt, true);
|
||||
m_clients.send(peer_id, 0, &legacy_pkt, true);
|
||||
} else {
|
||||
waiting.emplace(peer_id);
|
||||
Send(peer_id, &pkt);
|
||||
}
|
||||
}
|
||||
m_clients.unlock();
|
||||
|
||||
// Run callback for players that already had the file delivered (legacy-only)
|
||||
for (session_t peer_id : delivered) {
|
||||
if (auto player = m_env->getPlayer(peer_id))
|
||||
getScriptIface()->on_dynamic_media_added(token, player->getName());
|
||||
}
|
||||
|
||||
// Save all others in our pending state
|
||||
auto &state = m_pending_dyn_media[token];
|
||||
state.waiting_players = std::move(waiting);
|
||||
// regardless of success throw away the callback after a while
|
||||
state.expiry_timer = 60.0f;
|
||||
if (ephemeral)
|
||||
state.filename = filename;
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
|
22
src/server.h
22
src/server.h
@ -43,6 +43,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
#include <list>
|
||||
#include <map>
|
||||
#include <vector>
|
||||
#include <unordered_set>
|
||||
|
||||
class ChatEvent;
|
||||
struct ChatEventChat;
|
||||
@ -81,12 +82,14 @@ enum ClientDeletionReason {
|
||||
struct MediaInfo
|
||||
{
|
||||
std::string path;
|
||||
std::string sha1_digest;
|
||||
std::string sha1_digest; // base64-encoded
|
||||
bool no_announce; // true: not announced in TOCLIENT_ANNOUNCE_MEDIA (at player join)
|
||||
|
||||
MediaInfo(const std::string &path_="",
|
||||
const std::string &sha1_digest_=""):
|
||||
path(path_),
|
||||
sha1_digest(sha1_digest_)
|
||||
sha1_digest(sha1_digest_),
|
||||
no_announce(false)
|
||||
{
|
||||
}
|
||||
};
|
||||
@ -197,6 +200,7 @@ public:
|
||||
void handleCommand_FirstSrp(NetworkPacket* pkt);
|
||||
void handleCommand_SrpBytesA(NetworkPacket* pkt);
|
||||
void handleCommand_SrpBytesM(NetworkPacket* pkt);
|
||||
void handleCommand_HaveMedia(NetworkPacket *pkt);
|
||||
|
||||
void ProcessData(NetworkPacket *pkt);
|
||||
|
||||
@ -257,7 +261,8 @@ public:
|
||||
|
||||
void deleteParticleSpawner(const std::string &playername, u32 id);
|
||||
|
||||
bool dynamicAddMedia(const std::string &filepath, std::vector<RemotePlayer*> &sent_to);
|
||||
bool dynamicAddMedia(std::string filepath, u32 token,
|
||||
const std::string &to_player, bool ephemeral);
|
||||
|
||||
ServerInventoryManager *getInventoryMgr() const { return m_inventory_mgr.get(); }
|
||||
void sendDetachedInventory(Inventory *inventory, const std::string &name, session_t peer_id);
|
||||
@ -395,6 +400,12 @@ private:
|
||||
float m_timer = 0.0f;
|
||||
};
|
||||
|
||||
struct PendingDynamicMediaCallback {
|
||||
std::string filename; // only set if media entry and file is to be deleted
|
||||
float expiry_timer;
|
||||
std::unordered_set<session_t> waiting_players;
|
||||
};
|
||||
|
||||
void init();
|
||||
|
||||
void SendMovement(session_t peer_id);
|
||||
@ -466,6 +477,7 @@ private:
|
||||
void sendMediaAnnouncement(session_t peer_id, const std::string &lang_code);
|
||||
void sendRequestedMedia(session_t peer_id,
|
||||
const std::vector<std::string> &tosend);
|
||||
void stepPendingDynMediaCallbacks(float dtime);
|
||||
|
||||
// Adds a ParticleSpawner on peer with peer_id (PEER_ID_INEXISTENT == all)
|
||||
void SendAddParticleSpawner(session_t peer_id, u16 protocol_version,
|
||||
@ -650,6 +662,10 @@ private:
|
||||
// media files known to server
|
||||
std::unordered_map<std::string, MediaInfo> m_media;
|
||||
|
||||
// pending dynamic media callbacks, clients inform the server when they have a file fetched
|
||||
std::unordered_map<u32, PendingDynamicMediaCallback> m_pending_dyn_media;
|
||||
float m_step_pending_dyn_media_timer = 0.0f;
|
||||
|
||||
/*
|
||||
Sounds
|
||||
*/
|
||||
|
Loading…
Reference in New Issue
Block a user