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-- original file : mime.lua
-- for more into : see util-soc.lua
local type, tostring = type, tostring
local mime = mime or package.loaded.mime or require("mime.core")
local ltn12 = ltn12 or package.loaded.ltn12 or require("ltn12")
local filtercycle = ltn12.filter.cycle
local function report(fmt,first,...)
if logs then
report = logs and logs.reporter("mime")
report(fmt,first,...)
elseif fmt then
fmt = "mime: " .. fmt
if first then
print(format(fmt,first,...))
else
print(fmt)
end
end
end
mime.report = report
local encodet = { }
local decodet = { }
local wrapt = { }
mime.encodet = encodet
mime.decodet = decodet
mime.wrapt = wrapt
local mime_b64 = mime.b64
local mime_qp = mime.qp
local mime_unb64 = mime.unb64
local mime_unqp = mime.unqp
local mime_wrp = mime.wrp
local mime_qpwrp = mime.qpwrp
local mime_eol = mime_eol
local mime_dot = mime_dot
encodet['base64'] = function()
return filtercycle(mime_b64,"")
end
encodet['quoted-printable'] = function(mode)
return filtercycle(mime_qp, "", mode == "binary" and "=0D=0A" or "\r\n")
end
decodet['base64'] = function()
return filtercycle(mime_unb64, "")
end
decodet['quoted-printable'] = function()
return filtercycle(mime_unqp, "")
end
local wraptext = function(length)
if not length then
length = 76
end
return filtercycle(mime_wrp, length, length)
end
local wrapquoted = function()
return filtercycle(mime_qpwrp, 76, 76)
end
wrapt['text'] = wraptext
wrapt['base64'] = wraptext
wrapt['default'] = wraptext
wrapt['quoted-printable'] = wrapquoted
function mime.normalize(marker)
return filtercycle(mime_eol, 0, marker)
end
function mime.stuff()
return filtercycle(mime_dot, 2)
end
local function choose(list)
return function(name, opt1, opt2)
if type(name) ~= "string" then
name, opt1, opt2 = "default", name, opt1
end
local filter = list[name or "nil"]
if filter then
return filter(opt1, opt2)
else
report("error: unknown key '%s'",tostring(name))
end
end
end
mime.encode = choose(encodet)
mime.decode = choose(decodet)
mime.wrap = choose(wrapt)
package.loaded["mime"] = mime
return mime
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