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60 lines
2.1 KiB
Lua
60 lines
2.1 KiB
Lua
-- load the smtp support and its friends
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local smtp = require("smtp")
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local mime = require("mime")
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local ltn12 = require("ltn12")
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-- creates a source to send a message with two parts. The first part is
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-- plain text, the second part is a PNG image, encoded as base64.
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source = smtp.message{
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headers = {
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-- Remember that headers are *ignored* by smtp.send.
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from = "Sicrano <sicrano@tecgraf.puc-rio.br>",
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to = "Fulano <fulano@tecgraf.puc-rio.br>",
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subject = "Here is a message with attachments"
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},
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body = {
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preamble = "If your client doesn't understand attachments, \r\n" ..
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"it will still display the preamble and the epilogue.\r\n" ..
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"Preamble might show up even in a MIME enabled client.",
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-- first part: No headers means plain text, us-ascii.
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-- The mime.eol low-level filter normalizes end-of-line markers.
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[1] = {
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body = mime.eol(0, [[
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Lines in a message body should always end with CRLF.
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The smtp module will *NOT* perform translation. It will
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perform necessary stuffing, though.
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]])
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},
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-- second part: Headers describe content the to be an image,
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-- sent under the base64 transfer content encoding.
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-- Notice that nothing happens until the message is sent. Small
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-- chunks are loaded into memory and translation happens on the fly.
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[2] = {
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headers = {
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["content-type"] = 'image/png; name="image.png"',
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["content-disposition"] = 'attachment; filename="image.png"',
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["content-description"] = 'a beautiful image',
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["content-transfer-encoding"] = "BASE64"
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},
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body = ltn12.source.chain(
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ltn12.source.file(io.open("image.png", "rb")),
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ltn12.filter.chain(
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mime.encode("base64"),
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mime.wrap()
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)
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)
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},
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epilogue = "This might also show up, but after the attachments"
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}
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}
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-- finally send it
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r, e = smtp.send{
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rcpt = "<diego@cs.princeton.edu>",
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from = "<diego@cs.princeton.edu>",
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source = source,
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server = "mail.cs.princeton.edu"
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}
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print(r, e)
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