prosody
b125892e187c
plugins/mod_http_files.lua

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plugins/mod_http_files.lua @ 5257:b125892e187c

mod_http_files: Escape paths in redirects
author Kim Alvefur <zash@zash.se>
date Fri, 21 Dec 2012 09:04:02 +0100
parent 5256:a77c6eba461e
child 5260:87f72452a893
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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Matthew Wild <mwild1@gmail.com>
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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 --
569d58d21612 Add copyright header to those files missing one
Matthew Wild <mwild1@gmail.com>
parents: 1384
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5 -- This project is MIT/X11 licensed. Please see the
569d58d21612 Add copyright header to those files missing one
Matthew Wild <mwild1@gmail.com>
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6 -- COPYING file in the source package for more information.
569d58d21612 Add copyright header to those files missing one
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7 --
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8
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9 module:depends("http");
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10 local lfs = require "lfs";
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11
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e0373e0dd048 mod_http_files: Add Last-Modified header
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12 local os_date = os.date;
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13 local open = io.open;
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14 local stat = lfs.attributes;
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15 local build_path = require"socket.url".build_path;
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16
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684ea42ca77a mod_http_files: Change option name from http_path to http_files_dir
Matthew Wild <mwild1@gmail.com>
parents: 4701
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17 local http_base = module:get_option_string("http_files_dir", module:get_option_string("http_path", "www_files"));
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18 local dir_indices = module:get_option("http_files_index", { "index.html", "index.htm" });
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19 local show_file_list = module:get_option_boolean("http_files_show_list");
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20
5237
b1038f449e15 mod_http_files: Have mimetypes in a shared table. Get mimetypes from /etc/mime.types if exists.
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21 local mime_map = module:shared("mime").types;
b1038f449e15 mod_http_files: Have mimetypes in a shared table. Get mimetypes from /etc/mime.types if exists.
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22 if not mime_map then
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23 mime_map = {
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24 html = "text/html", htm = "text/html",
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25 xml = "application/xml",
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26 txt = "text/plain",
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27 css = "text/css",
b1038f449e15 mod_http_files: Have mimetypes in a shared table. Get mimetypes from /etc/mime.types if exists.
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28 js = "application/javascript",
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29 png = "image/png",
b1038f449e15 mod_http_files: Have mimetypes in a shared table. Get mimetypes from /etc/mime.types if exists.
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30 gif = "image/gif",
b1038f449e15 mod_http_files: Have mimetypes in a shared table. Get mimetypes from /etc/mime.types if exists.
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31 jpeg = "image/jpeg", jpg = "image/jpeg",
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32 svg = "image/svg+xml",
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33 };
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34 module:shared("mime").types = mime_map;
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35
b1038f449e15 mod_http_files: Have mimetypes in a shared table. Get mimetypes from /etc/mime.types if exists.
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36 local mime_types, err = open(module:get_option_string("mime_types_file", "/etc/mime.types"),"r");
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37 if mime_types then
b1038f449e15 mod_http_files: Have mimetypes in a shared table. Get mimetypes from /etc/mime.types if exists.
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38 local mime_data = mime_types:read("*a");
b1038f449e15 mod_http_files: Have mimetypes in a shared table. Get mimetypes from /etc/mime.types if exists.
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39 mime_types:close();
b1038f449e15 mod_http_files: Have mimetypes in a shared table. Get mimetypes from /etc/mime.types if exists.
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40 setmetatable(mime_map, {
b1038f449e15 mod_http_files: Have mimetypes in a shared table. Get mimetypes from /etc/mime.types if exists.
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parents: 5236
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41 __index = function(t, ext)
b1038f449e15 mod_http_files: Have mimetypes in a shared table. Get mimetypes from /etc/mime.types if exists.
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42 local typ = mime_data:match("\n(%S+)[^\n]*%s"..(ext:lower()).."%s") or "application/octet-stream";
b1038f449e15 mod_http_files: Have mimetypes in a shared table. Get mimetypes from /etc/mime.types if exists.
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43 t[ext] = typ;
b1038f449e15 mod_http_files: Have mimetypes in a shared table. Get mimetypes from /etc/mime.types if exists.
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44 return typ;
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45 end
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46 });
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47 end
b1038f449e15 mod_http_files: Have mimetypes in a shared table. Get mimetypes from /etc/mime.types if exists.
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diff changeset
48 end
2771
c9834f338a4e mod_httpserver: Return Content-Type header based on file extension.
Waqas Hussain <waqas20@gmail.com>
parents: 1870
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49
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50 local cache = setmetatable({}, { __mode = "kv" }); -- Let the garbage collector have it if it wants to.
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51
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52 function serve_file(event, path)
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53 local request, response = event.request, event.response;
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54 local orig_path = request.path;
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55 local full_path = http_base.."/"..path;
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56 local attr = stat(full_path);
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57 if not attr then
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58 return 404;
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59 end
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60
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61 local request_headers, response_headers = request.headers, response.headers;
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62
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13553f4132a8 mod_http_files: Compare If-Modified-Since to last modification date
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63 local last_modified = os_date('!%a, %d %b %Y %H:%M:%S GMT', attr.modification);
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64 response_headers.last_modified = last_modified;
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a9f0a1becc66 mod_http_files: Add ETag and check If-None-Match to allow client-side cache
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65
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66 local etag = ("%02x-%x-%x-%x"):format(attr.dev or 0, attr.ino or 0, attr.size or 0, attr.modification or 0);
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67 response_headers.etag = etag;
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68
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69 local if_none_match = request_headers.if_none_match
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70 local if_modified_since = request_headers.if_modified_since;
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71 if etag == if_none_match
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72 or (not if_none_match and last_modified == if_modified_since) then
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73 return 304;
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74 end
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75
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76 local data = cache[path];
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77 if data and data.etag == etag then
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78 response_headers.content_type = data.content_type;
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79 data = data.data;
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80 elseif attr.mode == "directory" then
4868
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81 if full_path:sub(-1) ~= "/" then
5257
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82 local path = { is_absolute = true, is_directory = true };
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83 for dir in orig_path:gmatch("[^/]+") do path[#path+1]=dir; end
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84 response_headers.location = build_path(path);
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85 return 301;
3353
cd3cbf361f8f mod_httpserver: Serve index.html if a request is made for a directory and it contains one (thanks Brian Cully)
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diff changeset
86 end
5232
c9bb5879e193 mod_http_files: Configurable number of index files to check for
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87 for i=1,#dir_indices do
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88 if stat(full_path..dir_indices[i], "mode") == "file" then
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89 return serve_file(event, path..dir_indices[i]);
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90 end
4868
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Kim Alvefur <zash@zash.se>
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91 end
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Kim Alvefur <zash@zash.se>
parents: 4722
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92
5238
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Kim Alvefur <zash@zash.se>
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93 if not show_file_list then
0cc0359d8c39 mod_http_files: Generate simple directory index.
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94 return 403;
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95 else
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Kim Alvefur <zash@zash.se>
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diff changeset
96 local html = require"util.stanza".stanza("html")
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97 :tag("head"):tag("title"):text(path):up()
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98 :tag("meta", { charset="utf-8" }):up()
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99 :up()
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100 :tag("body"):tag("h1"):text(path):up()
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Kim Alvefur <zash@zash.se>
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101 :tag("ul");
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Kim Alvefur <zash@zash.se>
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102 for file in lfs.dir(full_path) do
0cc0359d8c39 mod_http_files: Generate simple directory index.
Kim Alvefur <zash@zash.se>
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103 if file:sub(1,1) ~= "." then
0cc0359d8c39 mod_http_files: Generate simple directory index.
Kim Alvefur <zash@zash.se>
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104 local attr = stat(full_path..file) or {};
0cc0359d8c39 mod_http_files: Generate simple directory index.
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diff changeset
105 html:tag("li", { class = attr.mode })
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diff changeset
106 :tag("a", { href = file }):text(file)
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diff changeset
107 :up():up();
0cc0359d8c39 mod_http_files: Generate simple directory index.
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108 end
0cc0359d8c39 mod_http_files: Generate simple directory index.
Kim Alvefur <zash@zash.se>
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109 end
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Kim Alvefur <zash@zash.se>
parents: 5237
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110 data = "<!DOCTYPE html>\n"..tostring(html);
5255
bf34f1ee08ee mod_http_files: Only serve cached data if etag is unchanged.
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111 cache[path] = { data = data, content_type = mime_map.html; etag = etag; };
5253
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112 response_headers.content_type = mime_map.html;
5238
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113 end
0cc0359d8c39 mod_http_files: Generate simple directory index.
Kim Alvefur <zash@zash.se>
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114
5236
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115 else
5252
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Kim Alvefur <zash@zash.se>
parents: 5248
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116 local f, err = open(full_path, "rb");
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117 if f then
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118 data = f:read("*a");
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parents: 5248
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119 f:close();
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120 end
5236
8d116a0cdacd mod_http_files: Cache data read from disk in a weak table
Kim Alvefur <zash@zash.se>
parents: 5235
diff changeset
121 if not data then
8d116a0cdacd mod_http_files: Cache data read from disk in a weak table
Kim Alvefur <zash@zash.se>
parents: 5235
diff changeset
122 return 403;
8d116a0cdacd mod_http_files: Cache data read from disk in a weak table
Kim Alvefur <zash@zash.se>
parents: 5235
diff changeset
123 end
5254
df3552822054 mod_http_files: Make sure file extensions are not nil or empty string
Kim Alvefur <zash@zash.se>
parents: 5253
diff changeset
124 local ext = path:match("%.([^./]+)$");
df3552822054 mod_http_files: Make sure file extensions are not nil or empty string
Kim Alvefur <zash@zash.se>
parents: 5253
diff changeset
125 local content_type = ext and mime_map[ext];
5255
bf34f1ee08ee mod_http_files: Only serve cached data if etag is unchanged.
Kim Alvefur <zash@zash.se>
parents: 5254
diff changeset
126 cache[path] = { data = data; content_type = content_type; etag = etag };
5253
ad45612199e0 mod_http_files: Avoid a bunch of table lookups
Kim Alvefur <zash@zash.se>
parents: 5252
diff changeset
127 response_headers.content_type = content_type;
3353
cd3cbf361f8f mod_httpserver: Serve index.html if a request is made for a directory and it contains one (thanks Brian Cully)
Matthew Wild <mwild1@gmail.com>
parents: 2925
diff changeset
128 end
5233
342c46e62f50 mod_http_files: Return 404 faster if file does not exist
Kim Alvefur <zash@zash.se>
parents: 5232
diff changeset
129
4670
bd5e5e23942a mod_httpserver: Adapt to use the new HTTP API
Kim Alvefur <zash@zash.se>
parents: 3353
diff changeset
130 return response:send(data);
1667
c7bb2264e3b8 mod_httpserver: Set default file handler (you can now request static files as /*) and restructure code a bit
Matthew Wild <mwild1@gmail.com>
parents: 1552
diff changeset
131 end
1770
3e17002221eb mod_httpserver: Backport from trunk more thorough validation of URLs prior to processing
Matthew Wild <mwild1@gmail.com>
parents: 1552
diff changeset
132
4670
bd5e5e23942a mod_httpserver: Adapt to use the new HTTP API
Kim Alvefur <zash@zash.se>
parents: 3353
diff changeset
133 module:provides("http", {
bd5e5e23942a mod_httpserver: Adapt to use the new HTTP API
Kim Alvefur <zash@zash.se>
parents: 3353
diff changeset
134 route = {
4722
1138fd3d5846 mod_http_files: Specify method in HTTP route
Matthew Wild <mwild1@gmail.com>
parents: 4716
diff changeset
135 ["GET /*"] = serve_file;
4670
bd5e5e23942a mod_httpserver: Adapt to use the new HTTP API
Kim Alvefur <zash@zash.se>
parents: 3353
diff changeset
136 };
bd5e5e23942a mod_httpserver: Adapt to use the new HTTP API
Kim Alvefur <zash@zash.se>
parents: 3353
diff changeset
137 });
1667
c7bb2264e3b8 mod_httpserver: Set default file handler (you can now request static files as /*) and restructure code a bit
Matthew Wild <mwild1@gmail.com>
parents: 1552
diff changeset
138