FileServer

rednet.open("back")

while true do
         id,request = rednet.receive()
         if request == "balance" then
                  id,name = rednet.receive(.5)
                  id,pass = rednet.receive(.5)
                  --#if pass ~= nil or name ~= nil then
                  if pass ~= nil and name ~= nil then
                           --#check if exist
                           if not fs.exists('Accounts/'..name) then return; end
                           local account = fs.open("Accounts/"..name,"r")
                           local accountInfo = {}
                           for line in account.readLine do
                                        accountInfo[#accountInfo+1] = line
                           end
                           account.close()
                           if accountInfo[1] == pass then
                                        rednet.send(id,accountInfo[2])
                           end
                  end
         elseif request == "transfer" then
                  --#got rid of id cause its not being used
                  _,name = rednet.receive(.5)
                  _,pass = rednet.receive(.5)
                  _,to = rednet.receive(.5)
                  _,ammount = rednet.receive(.5)

                  --#if name ~= nil or pass ~= nil or to ~= nil or ammount ~= nil then
                  if name ~= nil and pass ~= nil and to ~= nil and ammount ~= nil then
                           --#check if exist
                           if not fs.exists('Accounts/'..name) then return; end
                           if not fs.exists('Accounts/'..to) then return; end
                           local account = fs.open("Accounts/"..name,"r")
                           local accountInfo = {}
                           for line in account.readLine do
                                        print(line)
                                        --#accountInfo[#accountInfo+1] = line  --this one is just preference
                                        table.insert(accountInfo,line)
                           end
                           account.close()
                           if pass == accountInfo[1] then
                                        if fs.exists("Accounts/"..to) == true then
                                                 local tmpPerson = fs.open("Accounts/"..to,"r")
                                                 local personInfo = {}
                                                 for line in tmpPerson.readLine do
                                                          --#personInfo[#personInfo+1] = line  --this one is just preference
                                                          table.insert(personInfo,line)
                                                 end
                                                 tmpPerson.close()
                                                 if tonumber(accountInfo[2]) >= ammount then
                                                          personInfo[2] = tonumber(personInfo[2])+ammount
                                                          print('added '..personInfo[2])
                                                          local person = fs.open("Accounts/"..to,"w")
                                                          --#for i=0, #personInfo do --mainly causing the java error i believe
                                                          for i=1, #personInfo do
                                                                   person.writeLine(personInfo[i])
                                                          end
                                                          person.close()
                                                          local account = fs.open("Accounts/"..name,"w")
                                                          accountInfo[2] = tonumber(accountInfo[2])-ammount
                                                          --#for i=0, #accountInfo do --mainly causing the java error i believe
                                                          for i=1, #accountInfo do
                                                                   --#person.writeLine(accountInfo[i])
                                                                   account.writeLine(accountInfo[i])
                                                          end
                                                          account.close()
                                                          --#person.close() moved higher up
                                                 end
                                        end
                           end
                  end
         end
end