mirror of
https://git.shadowkat.net/izaya/OC-PsychOS2.git
synced 2024-11-16 01:28:10 -05:00
134 lines
3.6 KiB
Lua
134 lines
3.6 KiB
Lua
local net = require "minitel"
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local dl = {}
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dl.protos = {}
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-- Stolen from the old exec/fget
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local function parseURL(url)
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local proto,addr = url:match("(.-)://(.+)")
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addr = addr or url
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local hp, path = addr:match("(.-)(/.*)")
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hp, path = hp or addr, path or "/"
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local host, port = hp:match("(.+):(.+)")
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host = host or hp
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return proto, host, port, path
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end
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function dl.protos.fget(host, optPort, path, dest) -- string string string number -- boolean -- Downloads path from host (on optPort or 70), printing the directory listing, or saving the file to dest.
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local socket = assert(net.open(host, optPort or 70))
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socket:write(string.format("t%s\n", path))
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local status
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repeat
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coroutine.yield()
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status = socket:read(1)
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until status ~= ""
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if status == "d" then
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io.write("Directory Listing:\n")
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local tmp = ""
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repeat
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coroutine.yield()
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tmp = socket:read("*a")
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io.write(tmp)
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until socket.state == "closed" and tmp == ""
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return true
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elseif status == "y" then
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if not dest then
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error("Must provide local path to save remote files.")
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end
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io.write(string.format("Saving %s to %s...\n", path, dest))
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local f = assert(io.open(dest, "wb"))
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local tmp = ""
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repeat
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coroutine.yield()
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tmp = socket:read("*a")
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f:write(tmp)
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until socket.state == "closed" and tmp == ""
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f:close()
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print("Done.")
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return true
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else
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local err, tmp = "", ""
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repeat
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coroutine.yield()
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tmp = socket:read("*a")
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err = err .. tmp
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until socket.state == "closed" and tmp == ""
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error(string.format("Got error from remote host: %s", err))
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end
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end
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function dl.protos.http(host, optPort, path, dest, url) -- string string string number -- boolean -- Downloads *url* to *dest* via the internet card, if available.
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if not component.list("internet")() then
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local proto,host,sPort,path = parseURL(url)
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local proxy = os.getenv(proto:upper().."_PROXY")
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if not proxy and fs.exists("/boot/cfg/"..proto.."_proxy") then
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local f = io.open("/boot/cfg/"..proto.."_proxy","rb")
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proxy = f:read()
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f:close()
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end
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if not proxy then error("No internet card or HTTP(S) proxy available") end
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print("Internet card unavailable, falling back to proxy "..proxy)
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if optPort then host=string.format("%s:%i",host,optPort) end
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return dl.wget(string.format("%s/%s%s",proxy,host,path),dest)
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end
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if not dest then
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error("Must provide local path to save remote files.")
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end
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local R,r=component.invoke(component.list("internet")(),"request",url)
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if not R then error(r) end
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repeat
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ok, err = R.finishConnect()
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if type(ok) ~= "boolean" then
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if err == url then
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return 404, "This is a bug in OC, I think?"
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end
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return -1, err or "Connection Error"
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end
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coroutine.yield()
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until ok
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local code, messsage, headers
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repeat
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coroutine.yield()
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code, message, headers = R.response()
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until code or message
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if code > 299 or code < 200 then
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return false, code, message
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end
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local f=io.open(dest,"wb")
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if not f then error("Unable to open file "..dest) end
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io.write(string.format("Saving %s to %s...\n", url, dest))
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repeat
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coroutine.yield()
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ns = R.read()
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f:write(ns or "")
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until not ns
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f:close()
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print("Done.")
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return true
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end
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dl.protos.https = dl.protos.http
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function dl.wget(remotePath, dest) -- string string -- -- Downloads from remote *remotePath* to *dest*
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local proto, host, sPort, path = parseURL(remotePath)
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if dl.protos[proto] then
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local port
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if sPort then
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port = tonumber(sPort)
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end
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dl.protos[proto](host, port, path, dest, remotePath)
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else
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error("Unsupported protocol: " .. tostring(proto))
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end
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end
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return setmetatable(dl,{__call=function(_,path,dest) return dl.wget(path,dest) end})
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