La nouvelle version avec le telnet complexe comme à marchotter, mais il y a encore pleins de trucs à améliorer

This commit is contained in:
Christian Zufferey
2020-02-09 19:31:06 +01:00
parent 2f64ee456c
commit 2e27bd68aa
3 changed files with 212 additions and 7 deletions

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@@ -0,0 +1,211 @@
-- tests connection reverse telnet
-- commande à faire tourner sur le serveur
--[[
socat TCP-LISTEN:23002,fork,reuseaddr STDIO
socat TCP-LISTEN:23002,reuseaddr,fork TCP-LISTEN:24002,reuseaddr,bind=127.0.0.1
]]
print("\n 0_tst3_socat.lua zf200209.1924 \n")
local node, table, tmr, wifi, uwrite, tostring =
node, table, tmr, wifi, uart.write, tostring
local function telnet_listener(socket)
local insert, remove, concat, heap, gc =
table.insert, table.remove, table.concat, node.heap, collectgarbage
local fifo1, fifo1l, fifo2, fifo2l = {}, 0, {}, 0
local s -- s is a copy of the TCP socket if and only if sending is in progress
local wdclr, cnt = tmr.wdclr, 0
local function debug(fmt, ...)
if (...) then fmt = fmt:format(...) end
uwrite(0, "\r\nDBG: ",fmt,"\r\n" )
cnt = cnt + 1
if cnt % 10 then wdclr() end
end
local function flushGarbage()
if heap() < 13440 then gc() end
end
local function sendLine()
if not s then return end
if fifo2l + fifo1l == 0 then -- both FIFOs empty, so clear down s
s = nil
return
end
flushGarbage()
if #fifo2 < 4 then -- Flush FIFO1 into FIFO2
insert(fifo2,concat(fifo1))
fifo2l, fifo1, fifo1l = fifo2l + fifo1l, {}, 0
end
local rec = remove(fifo2,1) .. (remove(fifo2,1) or '') ..
(remove(fifo2,1) or '') .. (remove(fifo2,1) or '')
fifo2l = fifo2l - #rec
flushGarbage()
s:send(rec)
end
local F1_SIZE = 256
local function queueLine(str)
while #str > 0 do -- this is because str might be longer than the packet size!
local k, l = F1_SIZE - fifo1l, #str
local chunk
if #fifo1 >= 32 or (k < l and k < 16) then
insert(fifo2, concat(fifo1))
fifo2l, fifo1, fifo1l, k = fifo2l + fifo1l, {}, 0, F1_SIZE
end
if l > k+16 then -- also tolerate a size overrun of 16 bytes to avoid a split
chunk, str = str:sub(1,k), str:sub(k+1)
else
chunk, str = str, ''
end
insert(fifo1, chunk)
fifo1l = fifo1l + #chunk
end
if not s and socket then
s = socket
sendLine()
else
flushGarbage()
end
end
local function receiveLine(s, line)
node.input(line)
end
local function disconnect(s)
fifo1, fifo1l, fifo2, fifo2l, s = {}, 0, {}, 0, nil
node.output(nil)
end
--zzz
local function zconnection(s)
print("Welcome to NodeMCU world.")
end
socket:on("connection", zconnection)
socket:on("receive", receiveLine)
socket:on("disconnection", disconnect)
socket:on("sent", sendLine)
node.output(queueLine, 0)
end
--net.createServer(net.TCP, 180):listen(23, telnet_listener)
--print("Telnet server running...\nUsage: telnet -rN ip\n")
srv_rt = net.createConnection(net.TCP, 0)
srv_rt:on("connection", function(sck)
print("c'est connected...")
telnet_listener(sck)
end)
srv_rt:connect(console_port,console_host)
print("Telnet server running...\nUsage: telnet -rN ip\n")
tmr_socat1=tmr.create()
tmr_socat1:alarm(3*1000, tmr.ALARM_AUTO , function()
gpio.write(zLED, gpio.LOW) tmr.delay(10000) gpio.write(zLED, gpio.HIGH)
if console_port == srv_rt:getpeer() then
gpio.write(zLED, gpio.LOW)
else
gpio.write(zLED, gpio.HIGH)
print("trying...")
srv_rt:connect(console_port,console_host)
end
end)
--[[
srv_rt = net.createConnection(net.TCP, 0)
srv_rt:on("connection", function(sck)
print("c'est connected...")
function s_output(str)
if(sck~=nil)
then sck:send(str)
end
end
node.output(s_output, 0)
-- re-direct output to function s_ouput.
sck:on("receive",function(c,l)
node.input(l)
--like pcall(loadstring(l)), support multiple separate lines
end)
sck:on("disconnection",function(c)
node.output(nil)
print("c'est disconnected...")
--unregist redirect output function, output goes to serial
end)
sck:on("reconnection",function(c)
print("c'est reconnection...")
end)
print("Welcome to NodeMcu world.")
end)
tmr_socat1=tmr.create()
tmr_socat1:alarm(3*1000, tmr.ALARM_AUTO , function()
gpio.write(zLED, gpio.LOW) tmr.delay(10000) gpio.write(zLED, gpio.HIGH)
if console_port == srv_rt:getpeer() then
gpio.write(zLED, gpio.LOW)
else
gpio.write(zLED, gpio.HIGH)
print("trying...")
srv_rt:connect(console_port,console_host)
end
end)
]]
--[[
print(srv_rt:getpeer())
srv_rt:connect(console_port,console_host)
gpio.write(zLED, gpio.LOW) tmr.delay(10000) gpio.write(zLED, gpio.HIGH)
if console_port == srv_rt:getpeer() then
gpio.write(zLED, gpio.LOW)
else
gpio.write(zLED, gpio.HIGH)
end
]]

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@@ -1,5 +1,5 @@
-- fonction cat() pour afficher le contenu d'un fichier dans la flash
print("\n cat.lua zf200209.1630 \n")
print("\n cat.lua zf191124.2204 \n")
function zread_line()
local zline = ""
@@ -15,13 +15,7 @@ function cat(zfile)
zf = file.open(zfile, "r")
while true do
zline = zread_line() if zline == nil then break end
tmr.delay(100*1000)
print(zline)
end
zf:close()
print("-------------------------------")