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if not modules then modules = { } end modules ['data-crl'] = {
version = 1.001,
comment = "companion to luat-lib.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
-- this one is replaced by data-sch.lua --
curl = curl or { }
local gsub = string.gsub
local finders, openers, loaders = resolvers.finders, resolvers.openers, resolvers.loaders
local cached = { }
function curl.fetch(protocol, name) -- todo: use socket library
local cleanname = gsub(name,"[^%a%d%.]+","-")
local cachename = caches.setfirstwritablefile(cleanname,"curl")
if not cached[name] then
if not io.exists(cachename) then
cached[name] = cachename
local command = "curl --silent --create-dirs --output " .. cachename .. " " .. name -- no protocol .. "://"
os.spawn(command)
end
if io.exists(cachename) then
cached[name] = cachename
else
cached[name] = ""
end
end
return cached[name]
end
function finders.curl(protocol,filename)
local foundname = curl.fetch(protocol, filename)
return finders.generic(protocol,foundname,filetype)
end
function openers.curl(protocol,filename)
return openers.generic(protocol,filename)
end
function loaders.curl(protocol,filename)
return loaders.generic(protocol,filename)
end
-- todo: metamethod
function curl.install(protocol)
finders[protocol] = function (filename,filetype) return finders.curl(protocol,filename) end
openers[protocol] = function (filename) return openers.curl(protocol,filename) end
loaders[protocol] = function (filename) return loaders.curl(protocol,filename) end
end
curl.install('http')
curl.install('https')
curl.install('ftp')
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