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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 --
local gsub = string.gsub
local exists = io.exists
local resolvers = resolvers
local finders = resolvers.finders
local openers = resolvers.openers
local loaders = resolvers.loaders
local setfirstwritablefile = caches.setfirstwritablefile
local curl = resolvers.curl or { }
resolvers.curl = curl
local cached = { }
local runner = sandbox.registerrunner {
name = "curl resolver",
method = "execute",
program = "curl",
template = '--silent --insecure --create-dirs --output "%cachename%" "%original%"',
checkers = {
cachename = "cache",
original = "url",
}
}
local function runcurl(specification)
local original = specification.original
-- local scheme = specification.scheme
local cleanname = gsub(original,"[^%a%d%.]+","-")
local cachename = setfirstwritablefile(cleanname,"curl")
if not cached[original] then
if not exists(cachename) then
cached[original] = cachename
runner {
cachename = cachename,
original = original,
}
end
if exists(cachename) then
cached[original] = cachename
else
cached[original] = ""
end
end
return cached[original]
end
-- old code: we could be cleaner using specification (see schemes)
local function finder(specification,filetype)
return resolvers.methodhandler("finders",runcurl(specification),filetype)
end
local opener = openers.file
local loader = loaders.file
local function install(scheme)
finders[scheme] = finder
openers[scheme] = opener
loaders[scheme] = loader
end
resolvers.curl.install = install
install('http')
install('https')
install('ftp')
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