plugins/mod_httpserver.lua
author Matthew Wild <mwild1@gmail.com>
Sat, 03 Oct 2009 00:57:26 +0100
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child 2771 c9834f338a4e
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mod_httpserver: Update to use new httpserver.new_from_config syntax
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-- Prosody IM
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-- Copyright (C) 2008-2009 Matthew Wild
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-- Copyright (C) 2008-2009 Waqas Hussain
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-- 
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-- This project is MIT/X11 licensed. Please see the
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-- COPYING file in the source package for more information.
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--
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local httpserver = require "net.httpserver";
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local open = io.open;
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local t_concat = table.concat;
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local http_base = config.get("*", "core", "http_path") or "www_files";
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local response_400 = { status = "400 Bad Request", body = "<h1>Bad Request</h1>Sorry, we didn't understand your request :(" };
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local response_404 = { status = "404 Not Found", body = "<h1>Page Not Found</h1>Sorry, we couldn't find what you were looking for :(" };
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local function preprocess_path(path)
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	if path:sub(1,1) ~= "/" then
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		path = "/"..path;
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	end
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	local level = 0;
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	for component in path:gmatch("([^/]+)/") do
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		if component == ".." then
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			level = level - 1;
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		elseif component ~= "." then
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			level = level + 1;
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		end
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		if level < 0 then
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			return nil;
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		end
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	end
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	return path;
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end
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function serve_file(path)
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	local f, err = open(http_base..path, "r");
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	if not f then return response_404; end
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	local data = f:read("*a");
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	f:close();
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	return data;
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end
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local function handle_file_request(method, body, request)
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	local path = preprocess_path(request.url.path);
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	if not path then return response_400; end
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	path = path:gsub("^/[^/]+", ""); -- Strip /files/
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	return serve_file(path);
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end
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local function handle_default_request(method, body, request)
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	local path = preprocess_path(request.url.path);
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	if not path then return response_400; end
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	return serve_file(path);
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end
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local ports = config.get(module.host, "core", "http_ports") or { 5280 };
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httpserver.set_default_handler(handle_default_request);
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httpserver.new_from_config(ports, handle_file_request, { base = "files" });