135 lines
3.2 KiB
Lua
135 lines
3.2 KiB
Lua
local hlib = {}
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local fmt = string.format
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local g_version = "1.1"
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local g_status_msg = {
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[100] = "Continue",
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[101] = "Switching Protocols",
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[102] = "Processing",
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[200] = "OK",
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[201] = "Created",
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[202] = "Accepted",
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[203] = "Non-authoritative Information",
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[204] = "No Content",
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[205] = "Reset Content",
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[206] = "Partial Content",
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[207] = "Multi-Status",
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[208] = "Already Reported",
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[226] = "IM Used",
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[300] = "Multiple Choices",
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[301] = "Moved Permanently",
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[302] = "Found",
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[303] = "See Other",
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[304] = "Not Modified",
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[305] = "Use Proxy",
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[307] = "Temporary Redirect",
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[308] = "Permanent Redirect",
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[400] = "Bad Request",
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[401] = "Unauthorized",
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[402] = "Payment Required",
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[403] = "Forbidden",
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[404] = "Not Found",
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[405] = "Method Not Allowed",
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[406] = "Not Acceptable",
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[407] = "Proxy Authentication Required",
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[408] = "Request Timeout",
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[409] = "Conflict",
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[410] = "Gone",
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[411] = "Length Required",
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[412] = "Precondition Failed",
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[413] = "Payload Too Large",
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[414] = "Request-URI Too Long",
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[415] = "Unsupported Media Type",
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[416] = "Requested Range Not Satisfiable",
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[417] = "Expectation Failed",
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[418] = "I’m a teapot",
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[421] = "Misdirected Request",
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[422] = "Unprocessable Entity",
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[423] = "Locked",
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[424] = "Failed Dependency",
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[426] = "Upgrade Required",
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[428] = "Precondition Required",
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[429] = "Too Many Requests",
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[431] = "Request Header Fields Too Large",
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[444] = "Connection Closed Without Response",
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[451] = "Unavailable For Legal Reasons",
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[499] = "Client Closed Request",
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[500] = "Internal Server Error",
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[501] = "Not Implemented",
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[502] = "Bad Gateway",
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[503] = "Service Unavailable",
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[504] = "Gateway Timeout",
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[505] = "HTTP Version Not Supported",
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[506] = "Variant Also Negotiates",
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[507] = "Insufficient Storage",
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[508] = "Loop Detected",
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[510] = "Not Extended",
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[511] = "Network Authentication Required",
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[599] = "Network Connect Timeout Error",
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}
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function push_headers(headers, add)
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for k,v in pairs(add) do
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headers[k] = v
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end
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return headers
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end
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function get_content_length(body)
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return {["Content-Length"] = #body+1}
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end
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function get_content_type(body)
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return {["Content-Type"] = "text/html"}
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end
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local header_functions = {
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get_content_length,
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get_content_type
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}
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function hlib.parse_request(r)
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local request = {
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method = nil,
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path = nil,
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version = nil,
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headers = {}
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}
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local lines = string.gmatch(r, "[^\n]+")
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local head_msg = lines()
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local _, _, method, path, version = string.find(head_msg, "(%u+) ([%w/]+) ([%w/%.]+)")
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request.method = method
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request.path = path
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request.version = version
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for line in lines do
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local _, _, a, b = string.find(line, "([%w-]+): (.+)")
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if a then
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request.headers[a] = b
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end
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end
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return request
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end
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function hlib.response(path, status, body)
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local resp = {
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version = fmt("HTTP/%s", g_version),
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status = status,
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status_msg = g_status_msg[status],
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body = body,
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headers = {}
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}
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for k,v in pairs(header_functions) do
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resp.headers = push_headers(resp.headers, v(body))
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end
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local r = fmt(
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[[%s %s %s
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Content-Length: %d
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%s
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]], resp.version, resp.status, resp.status_msg, #resp.body+1, resp.body)
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return r
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end
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return hlib
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