let __makeFile(name, type, data) = do
    let save(path) = do
        let file = file.write(path)
        file.buffer(data)
        file.close()
    File.save = save

let __multipart(req, res) = do
    let boundary = buffer().from(req.headers.splitN("boundary=", 2))
    let newLineSplit = buffer().from("\r\n\r\n")
    let parts = req.buffer.body.split(boundary)
    if (true) do
        let str = parts.to("string")
        if (str == "" || str=="--" || str=="--\r\n") do
        str = null
        let headers = []
        let lines = parts.splitN(newLineSplit, 2)
        let headerLines = lines.to("string").split("\r\n")
        if (true) do
            let header = headerLines.splitN(": ", 2)
            if (header.length != 2) do
            headers = header
        if (lines.length != 2) do
        let body = lines
        if (i != parts.length-1) do
            body = body.slice(0, body.length-4)
        if ("content-disposition" in headers) do
            let disposition = headers.split("; ")
            if (disposition == "form-data") do
                let name = json.parse(disposition.splitN("=", 2))
                if (disposition.length >= 3) do
                    let filename = json.parse(disposition.splitN("=", 2))
                    req.files = __makeFile(filename, headers, body)
                else do
                    req.formdata = body.to("string")
    res.next()
    

let formdata(req, res) = do
    req.formdata = {}
    req.files = {}

    if (req.method != "POST") return res.next()
    if ("content-type" not in req.headers) return res.next()
    let loweredContentType = req.headers["content-type"].lower()
    if (loweredContentType.startswith("multipart/form-data")) return __multipart(req, res)
    else if (loweredContentType.startswith("application/x-www-form-urlencoded")) req.formdata = url.decodeURLQuery(req.buffer.body.to("string"))
    else if (loweredContentType.startswith("application/json")) req.formdata = json.parse(req.buffer.body.to("string"))
    else req.files.file = __makeFile("file", req.headers["content-type"], req.buffer.body)
    res.next()