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if not modules then modules = { } end modules ['util-soc'] = {
version = 1.001,
comment = "support for sockets / protocols",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
--[[--
In LuaTeX we provide the socket library that is more or less the standard one for
Lua. It has been around for a while and seems to be pretty stable. The binary
module is copmpiled into LuaTeX and the accompanying .lua files are preloaded.
These files are mostly written by Diego Nehab, Andre Carregal, Javier Guerra, and
Fabio Mascarenhas with contributions from Diego Nehab, Mike Pall, David Burgess,
Leonardo Godinho, Thomas Harning Jr., and Gary NG. The originals are part of and
copyrighted by the Kepler project.
Here we reload a slightly reworked version of these .lua files. We keep the same
(documented) interface but streamlined some fo the code. No more modules, no more
pre 5.2 Lua, etc. Also, as it loads into the ConTeXt ecosystem, we plug in some
logging. (and maybe tracing in the future). As we don't support serial ports in
LuaTeX, related code has been dropped.
The files are reformatted so that we can more easilly add additional features
and/or tracing options. Any error introduced there is our fault! The url module
might be replaced by the one in ConTeXt. When we need mbox a suitable variant
will be provided.
--]]--
local format = string.format
local smtp = require("socket.smtp")
local ltn12 = require("ltn12")
local mime = require("mime")
local mail = utilities.mail or { }
utilities.mail = mail
local report_mail = logs.reporter("mail")
function mail.send(specification)
local presets = specification.presets
if presets then
table.setmetatableindex(specification,presets)
end
local server = specification.server or ""
if not server then
report_mail("no server specified")
return false, "invalid server"
end
local to = specification.to or specification.recepient or ""
if to == "" then
report_mail("no recipient specified")
return false, "invalid recipient"
end
local from = specification.from or specification.sender or ""
if from == "" then
report_mail("no sender specified")
return false, "invalid sender"
end
local message = { }
local body = specification.body
if body then
message[#message+1] = {
body = body
}
end
local files = specification.files
if files then
for i=1,#files do
local filename = files[i]
local handle = io.open(filename, "rb")
if handle then
report_mail("attaching file %a",filename)
message[#message+1] = {
headers = {
["content-type"] = format('application/pdf; name="%s"',filename),
["content-disposition"] = format('attachment; filename="%s"',filename),
["content-description"] = format('file: %s',filename),
["content-transfer-encoding"] = "BASE64"
},
body = ltn12.source.chain(
ltn12.source.file(handle),
ltn12.filter.chain(mime.encode("base64"),mime.wrap())
)
}
else
report_mail("file %a not found",filename)
end
end
end
local user = specification.user
local password = specification.password
local result, detail = smtp.send {
server = specification.server,
port = specification.port,
user = user ~= "" and user or nil,
password = password ~= "" and password or nil,
from = from,
rcpt = to,
source = smtp.message {
headers = {
to = to,
from = from,
cc = specification.cc,
subject = specification.subject or "no subject",
},
body = message
},
}
if detail then
report_mail("error: %s",detail)
return false, detail
else
report_mail("message sent")
return true
end
end
-- for now we have this here:
if socket then
math.initialseed = tonumber(string.sub(string.reverse(tostring(math.ceil(socket.gettime()*10000))),1,6))
math.randomseed(math.initialseed)
end
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