Thu, 02 Dec 2010 22:55:42 +0500
net.server_select: Made some globals local.
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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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9 | |
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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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22 | |
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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 |