Sending Files Server Side to Client Side

[deltamta]

Hello guys,

I was just wondering if there is a way to transmit Server Side files within maps to Client Side Cache. I already looped through a map's file but I can't seem to understand how to transfer the actual file to client side. The reason I wanna do that is cause I'm running clientside scripts on 'pcall ( loadstring )' and no meta file from the actual map is read. So I can't play the music files etc etc. I tried something like that :

Server Side :

for Index, MapFile in ipairs( g_RaceFiles ) do -- For all the scripts read them completely. 
        g_RaceFiles[Index] = { } 
        g_RaceFiles[Index].names = MapFile 
        g_RaceFiles[Index].files = readMapFile ( readMapFile ( ":"..MapResourceName.."/"..MapFile ) ) 
end 
triggerLatentClientEvent ( Player, 'onClientReceiveMap', 9999999999999, false, Player, g_Vehicles, g_Spawnpoints, g_Checkpoints, g_Objects, g_Pickups, g_RaceScriptFiles, g_RaceFiles ) 

ReadMapFile Server Side Function :

function readMapFile ( MapFile ) 
    local file = fileOpen( MapFile )  
    if ( file ) then 
        local scriptInformation = fileRead( file, fileGetSize( file ) )  
        fileClose( file ) 
        return scriptInformation 
    end 
    return false 
end 

Client Side :

for i, file in ipairs ( g_RaceFiles ) do 
    outputChatBox ( file.files ) 
    local RaceFile = fileCreate( file.names ) 
    if ( RaceFile ) then 
        local RaceWrite = fileWrite ( RaceFile, file.files ) 
        if ( RaceWrite ) then 
            fileClose ( RaceFile ) 
            outputChatBox ( "#ff8c00* #ffffffSuccessfully have written inside the file.", 255, 255, 255, true ) 
        end 
    end 
end 

This though doesn't seem to work... I would appreciate some help

Regards,

Delta

[ixjf]

triggerLatentClientEvent ( Player, 'onClientReceiveMap', 9999999999999, false, Player, g_Vehicles, g_Spawnpoints, g_Checkpoints, g_Objects, g_Pickups, g_RaceScriptFiles, g_RaceFiles ) 

Doing this doesn't help much, triggerLatentClientEvent is useless the way you're using it.

And server scripts aren't supposed to be downloaded to the client's cache, they're run from the server.

[deltamta]

And server scripts aren't supposed to be downloaded to the client's cache, they're run from the server.

Not if you want to do what I'm trying to succeed. I want to make a server with many gamemodes inside and to succeed that I have to trigger the map elements, scripts and files Client Side to load them for the specific player that has joinned the specific gamemode. All I want to know is how to trigger a file from server side to client side so I can stick it in cache.

Regards,

Delta.

[ixjf]

And why would you save the script on the client's computer? The script can't be run on the client side.

[deltamta]

I don't wanna save a freakin' script I wanna save a file. For example lets say a music file. In order to be ran I need to save it in the client cache. Since I'm using 'pcall ( loadstring )' I have to transfer everything manually. And even if you don't understand can't you just tell me how to move a file from serverside to clientside. I know why I wanna do that.

Regards,

Delta.

[ixjf]

I'm sorry for the misunderstanding, I didn't read carefully.

Just read the file with the MTA file functions and send the bytes with triggerLatentClientEvent. Then, on the client side, re-create the file.

Edited April 7, 2013 by Guest

[GTX]

Would you like to cache client-side scripts? If so, you first need to get script name's and their location and send them to client. Put them in a table. (You don't need latent event.)

local scriptsTable = {} 
    for index, node in ipairs( xmlNodeGetChildren(meta) ) do 
        local ntype = xmlNodeGetName(node) 
        if ntype == 'script' then 
            local filePath = xmlNodeGetAttribute(node,'src') 
            if filePath then 
                table.insert(scriptsTable, filePath) 
            end 
        end 
    end 
    triggerClientEvent(a, "checkCache", a, resName, scriptsTable) 

Then you need to check if script is already cached. Do that by:

  
function checkCache(resName, tScripts) 
    for i, v in ipairs(tScripts) do 
        if not fileExists("mapscripts/"..resName.."/"..v) then 
            triggerServerEvent("requestDownload", source, resName, v) 
        else 
                 
        end 
    end 
end 
addEvent("checkCache", true) 
addEventHandler("checkCache", root, checkCache) 

On the server-side, you need to read that file and send it back to client.

addEvent("requestDownload", true) 
addEventHandler("requestDownload", root, 
    function(resName, scriptName) 
        if fileExists(":"..resName.."/"..scriptName) then 
            file = fileOpen(":"..resName.."/"..scriptName) 
            if file then 
                fileSize = fileGetSize(file) 
                fileContent = fileRead(file, fileSize) 
                triggerLatentClientEvent(source, "onClientDownloadRecieve", source, fileContent, resName, scriptName) 
            end 
        end 
    end 
) 

When server will send the code back, client will cache it.

function cacheFiles(content, resName, scriptName) 
    local newFile = fileCreate("mapscripts/"..resName.."/"..scriptName) 
    if newFile then 
        fileWrite(newFile, content) 
        fileClose(newFile) 
    end 
end 
addEvent("onClientDownloadRecieve", true) 
addEventHandler("onClientDownloadRecieve", root, cacheFiles) 

That's it It works fine for me!

EDIT: Do the same for files like music. You can stream music also.

[deltamta]

It works awesome and well and thanks GTX. But when I run the scripts shouldn't it like play the music and load the files etc. ? Cause it doesn't although the files are downloaded. If you could help me with that guys would be awesome.

Regards,

Delta.

[GTX]

You're welcome.

You must use loadstring and do the wrappers. Like:

  
-- Override the function. 
_playSound = playSound 
  
sounds = {} 
  
res = "" 
  
function playSound(filepath, looped) 
    local music = _playSound("cache/"..res.."/"..filepath, looped) -- Filepath is song (music.mp3) 
    if music then 
        table.insert(sounds, music) -- You can unload it later. Just loop through this table and use stopSound. 
    end 
end 
  
function loadScript(content, resourceName) 
    res = resourceName -- Your map name. 
    local loadit = loadstring(content) 
    local loaded = pcall(loadit) 
    if loaded then 
        -- ? 
    end 
end