prosody
408a19977125
plugins/mod_httpserver.lua

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plugins/mod_httpserver.lua @ 3680:408a19977125

fallbacks/lxp.lua: Pure Lua pseudo-XML parser. Implements the same API as LuaExpat.
author Waqas Hussain <waqas20@gmail.com>
date Thu, 02 Dec 2010 17:11:51 +0500
parent 3353:cd3cbf361f8f
child 4670:bd5e5e23942a
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 --
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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10 local httpserver = require "net.httpserver";
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11 local lfs = require "lfs";
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12
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13 local open = io.open;
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14 local t_concat = table.concat;
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15 local stat = lfs.attributes;
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16
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17 local http_base = config.get("*", "core", "http_path") or "www_files";
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18
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19 local response_400 = { status = "400 Bad Request", body = "<h1>Bad Request</h1>Sorry, we didn't understand your request :(" };
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20 local response_403 = { status = "403 Forbidden", body = "<h1>Forbidden</h1>You don't have permission to view the contents of this directory :(" };
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21 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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23 -- TODO: Should we read this from /etc/mime.types if it exists? (startup time...?)
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24 local mime_map = {
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25 html = "text/html";
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26 htm = "text/html";
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27 xml = "text/xml";
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28 xsl = "text/xml";
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29 txt = "text/plain; charset=utf-8";
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30 js = "text/javascript";
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31 css = "text/css";
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32 };
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33
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34 local function preprocess_path(path)
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35 if path:sub(1,1) ~= "/" then
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36 path = "/"..path;
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37 end
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38 local level = 0;
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39 for component in path:gmatch("([^/]+)/") do
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40 if component == ".." then
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41 level = level - 1;
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42 elseif component ~= "." then
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43 level = level + 1;
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44 end
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45 if level < 0 then
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46 return nil;
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47 end
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48 end
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49 return path;
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50 end
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51
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52 function serve_file(path)
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53 local full_path = http_base..path;
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54 if stat(full_path, "mode") == "directory" then
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55 if stat(full_path.."/index.html", "mode") == "file" then
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56 return serve_file(path.."/index.html");
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57 end
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58 return response_403;
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59 end
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60 local f, err = open(full_path, "rb");
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61 if not f then return response_404; end
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62 local data = f:read("*a");
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63 f:close();
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64 if not data then
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65 return response_403;
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66 end
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67 local ext = path:match("%.([^.]*)$");
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68 local mime = mime_map[ext]; -- Content-Type should be nil when not known
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69 return {
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70 headers = { ["Content-Type"] = mime; };
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71 body = data;
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72 };
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73 end
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74
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75 local function handle_file_request(method, body, request)
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76 local path = preprocess_path(request.url.path);
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77 if not path then return response_400; end
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78 path = path:gsub("^/[^/]+", ""); -- Strip /files/
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79 return serve_file(path);
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80 end
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81
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82 local function handle_default_request(method, body, request)
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83 local path = preprocess_path(request.url.path);
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84 if not path then return response_400; end
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85 return serve_file(path);
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86 end
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87
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88 local function setup()
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89 local ports = config.get(module.host, "core", "http_ports") or { 5280 };
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90 httpserver.set_default_handler(handle_default_request);
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91 httpserver.new_from_config(ports, handle_file_request, { base = "files" });
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92 end
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93 if prosody.start_time then -- already started
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94 setup();
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95 else
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96 prosody.events.add_handler("server-started", setup);
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97 end