Seems to be working.

This commit is contained in:
Diego Nehab 2004-03-19 05:04:03 +00:00
parent 2c160627e5
commit e896454e6c
4 changed files with 111 additions and 69 deletions

View File

@ -16,7 +16,7 @@ local function second(a, b)
return b
end
local function skip(a, b, c)
local function shift(a, b, c)
return b, c
end
@ -69,7 +69,7 @@ function source.file(handle, io_err)
if not chunk then handle:close() end
return chunk
end
else source.error(io_err or "unable to open file") end
else return source.error(io_err or "unable to open file") end
end
-- turns a fancy source into a simple source
@ -114,6 +114,7 @@ function source.chain(src, f)
local co = coroutine.create(function()
while true do
local chunk, err = src()
if err then return nil, err end
local filtered = f(chunk)
local done = chunk and ""
while true do
@ -121,11 +122,10 @@ function source.chain(src, f)
if filtered == done then break end
filtered = f(done)
end
if not chunk then return nil, err end
end
end)
return function()
return skip(coroutine.resume(co))
return shift(coroutine.resume(co))
end
end
@ -141,7 +141,7 @@ function source.cat(...)
end
end)
return source.simplify(function()
return second(coroutine.resume(co))
return shift(coroutine.resume(co))
end)
end

View File

@ -6,9 +6,9 @@ setmetatable(mime, { __index = _G })
setfenv(1, mime)
-- encode, decode and wrap algorithm tables
local et = {}
local dt = {}
local wt = {}
encodet = {}
decodet = {}
wrapt = {}
-- creates a function that chooses a filter by name from a given table
local function choose(table)
@ -20,40 +20,40 @@ local function choose(table)
end
-- define the encoding filters
et['base64'] = function()
encodet['base64'] = function()
return ltn12.filter.cycle(b64, "")
end
et['quoted-printable'] = function(mode)
encodet['quoted-printable'] = function(mode)
return ltn12.filter.cycle(qp, "",
(mode == "binary") and "=0D=0A" or "\13\10")
end
-- define the decoding filters
dt['base64'] = function()
decodet['base64'] = function()
return ltn12.filter.cycle(unb64, "")
end
dt['quoted-printable'] = function()
decodet['quoted-printable'] = function()
return ltn12.filter.cycle(unqp, "")
end
-- define the line-wrap filters
wt['text'] = function(length)
wrapt['text'] = function(length)
length = length or 76
return ltn12.filter.cycle(wrp, length, length)
end
wt['base64'] = wt['text']
wrapt['base64'] = wrapt['text']
wt['quoted-printable'] = function()
wrapt['quoted-printable'] = function()
return ltn12.filter.cycle(qpwrp, 76, 76)
end
-- function that choose the encoding, decoding or wrap algorithm
encode = choose(et)
decode = choose(dt)
-- there is different because there is a default wrap filter
local cwt = choose(wt)
encode = choose(encodet)
decode = choose(decodet)
-- it's different because there is a default wrap filter
local cwt = choose(wrapt)
function wrap(mode_or_length, length)
if type(mode_or_length) ~= "string" then
length = mode_or_length

View File

@ -10,23 +10,27 @@ socket.smtp = smtp
setmetatable(smtp, { __index = _G })
setfenv(1, smtp)
-- default server used to send e-mails
SERVER = "localhost"
-- default port
PORT = 25
-- domain used in HELO command and default sendmail
-- If we are under a CGI, try to get from environment
DOMAIN = os.getenv("SERVER_NAME") or "localhost"
-- default server used to send e-mails
SERVER = "localhost"
-- default time zone (means we don't know)
ZONE = "-0000"
function stuff()
return ltn12.filter.cycle(dot, 2)
end
local function skip(a, b, c)
local function shift(a, b, c)
return b, c
end
-- send message or throw an exception
function psend(control, mailt)
socket.try(control:check("2.."))
socket.try(control:command("EHLO", mailt.domain or DOMAIN))
socket.try(control:check("2.."))
socket.try(control:command("MAIL", "FROM:" .. mailt.from))
@ -34,11 +38,12 @@ function psend(control, mailt)
if type(mailt.rcpt) == "table" then
for i,v in ipairs(mailt.rcpt) do
socket.try(control:command("RCPT", "TO:" .. v))
socket.try(control:check("2.."))
end
else
socket.try(control:command("RCPT", "TO:" .. mailt.rcpt))
end
socket.try(control:check("2.."))
end
socket.try(control:command("DATA"))
socket.try(control:check("3.."))
socket.try(control:source(ltn12.source.chain(mailt.source, stuff())))
@ -48,6 +53,7 @@ function psend(control, mailt)
socket.try(control:check("2.."))
end
-- returns a hopefully unique mime boundary
local seqno = 0
local function newboundary()
seqno = seqno + 1
@ -55,18 +61,13 @@ local function newboundary()
math.random(0, 99999), seqno)
end
local function sendmessage(mesgt)
-- send headers
if mesgt.headers then
for i,v in pairs(mesgt.headers) do
coroutine.yield(i .. ':' .. v .. "\r\n")
end
end
-- deal with multipart
if type(mesgt.body) == "table" then
-- sendmessage forward declaration
local sendmessage
-- yield multipart message body from a multipart message table
local function sendmultipart(mesgt)
local bd = newboundary()
-- define boundary and finish headers
coroutine.yield('mime-version: 1.0\r\n')
coroutine.yield('content-type: multipart/mixed; boundary="' ..
bd .. '"\r\n\r\n')
-- send preamble
@ -80,37 +81,78 @@ local function sendmessage(mesgt)
coroutine.yield("\r\n--" .. bd .. "--\r\n\r\n")
-- send epilogue
if mesgt.body.epilogue then coroutine.yield(mesgt.body.epilogue) end
-- deal with a source
elseif type(mesgt.body) == "function" then
end
-- yield message body from a source
local function sendsource(mesgt)
-- set content-type if user didn't override
if not mesgt.headers or not mesgt.headers["content-type"] then
coroutine.yield('content-type: text/plain; charset="iso-88591"\r\n')
end
-- finish headers
coroutine.yield("\r\n")
-- send body from source
while true do
local chunk, err = mesgt.body()
if err then return nil, err
if err then coroutine.yield(nil, err)
elseif chunk then coroutine.yield(chunk)
else break end
end
-- deal with a simple string
else
end
-- yield message body from a string
local function sendstring(mesgt)
-- set content-type if user didn't override
if not mesgt.headers or not mesgt.headers["content-type"] then
coroutine.yield('content-type: text/plain; charset="iso-88591"\r\n')
end
-- finish headers
coroutine.yield("\r\n")
-- send body from string
coroutine.yield(mesgt.body)
end
-- yield the headers one by one
local function sendheaders(mesgt)
if mesgt.headers then
for i,v in pairs(mesgt.headers) do
coroutine.yield(i .. ':' .. v .. "\r\n")
end
end
end
-- message source
function sendmessage(mesgt)
sendheaders(mesgt)
if type(mesgt.body) == "table" then sendmultipart(mesgt)
elseif type(mesgt.body) == "function" then sendsource(mesgt)
else sendstring(mesgt) end
end
-- set defaul headers
local function adjustheaders(mesgt)
mesgt.headers = mesgt.headers or {}
mesgt.headers["mime-version"] = "1.0"
mesgt.headers["date"] = mesgt.headers["date"] or
os.date("%a, %d %b %Y %H:%M:%S") .. (mesgt.zone or ZONE)
mesgt.headers["x-mailer"] = mesgt.headers["x-mailer"] or socket.version
end
function message(mesgt)
adjustheaders(mesgt)
-- create and return message source
local co = coroutine.create(function() sendmessage(mesgt) end)
return function() return skip(coroutine.resume(co)) end
return function() return shift(coroutine.resume(co)) end
end
function send(mailt)
local control, err = socket.tp.connect(mailt.server or SERVER,
mailt.port or PORT)
if not control then return nil, err end
local status, err = pcall(psend, control, mailt)
control:close()
if status then return true
else return nil, err end
local c, e = socket.tp.connect(mailt.server or SERVER, mailt.port or PORT)
if not c then return nil, e end
local s, e = pcall(psend, c, mailt)
c:close()
if s then return true
else return nil, e end
end
return smtp

View File

@ -82,7 +82,7 @@ function metatable.__index:source(src, instr)
while true do
local chunk, err = src()
if not chunk then return not err, err end
local ret, err = try_sending(self.sock, chunk)
local ret, err = self.sock:send(chunk)
if not ret then return nil, err end
end
end
@ -95,7 +95,7 @@ end
-- connect with server and return sock object
function connect(host, port)
local sock, err = socket.connect(host, port)
if not sock then return nil, message end
if not sock then return nil, err end
sock:settimeout(TIMEOUT)
return setmetatable({sock = sock}, metatable)
end