prosody
4e58fde55594
plugins/mod_http_files.lua

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plugins/mod_http_files.lua @ 5262:4e58fde55594

mod_http_files: Export function can be used by other modules to serve files. Don't serve files by default unless http_files_dir is set
author Kim Alvefur <zash@zash.se>
date Fri, 21 Dec 2012 17:54:43 +0100
parent 5261:b14f02671439
child 5263:736e7ec8cd2e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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569d58d21612 Add copyright header to those files missing one
Matthew Wild <mwild1@gmail.com>
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diff changeset
1 -- Prosody IM
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b7049746bd29 Update copyright headers for 2010
Matthew Wild <mwild1@gmail.com>
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2 -- Copyright (C) 2008-2010 Matthew Wild
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Matthew Wild <mwild1@gmail.com>
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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Matthew Wild <mwild1@gmail.com>
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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>
parents: 1384
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6 -- COPYING file in the source package for more information.
569d58d21612 Add copyright header to those files missing one
Matthew Wild <mwild1@gmail.com>
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7 --
569d58d21612 Add copyright header to those files missing one
Matthew Wild <mwild1@gmail.com>
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8
4670
bd5e5e23942a mod_httpserver: Adapt to use the new HTTP API
Kim Alvefur <zash@zash.se>
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9 module:depends("http");
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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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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;
5257
b125892e187c mod_http_files: Escape paths in redirects
Kim Alvefur <zash@zash.se>
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15 local build_path = require"socket.url".build_path;
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16
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Kim Alvefur <zash@zash.se>
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17 local base_path = module:get_option_string("http_files_dir", module:get_option_string("http_path"));
5261
b14f02671439 mod_http_files: Rename config options and variable names
Kim Alvefur <zash@zash.se>
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18 local dir_indices = module:get_option("http_index_files", { "index.html", "index.htm" });
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19 local directory_index = module:get_option_boolean("http_dir_listing");
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20
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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;
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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",
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28 js = "application/javascript",
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29 png = "image/png",
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30 gif = "image/gif",
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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
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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
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38 local mime_data = mime_types:read("*a");
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39 mime_types:close();
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40 setmetatable(mime_map, {
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41 __index = function(t, ext)
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42 local typ = mime_data:match("\n(%S+)[^\n]*%s"..(ext:lower()).."%s") or "application/octet-stream";
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43 t[ext] = typ;
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44 return typ;
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45 end
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46 });
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47 end
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48 end
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c9834f338a4e mod_httpserver: Return Content-Type header based on file extension.
Waqas Hussain <waqas20@gmail.com>
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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(opts)
4e58fde55594 mod_http_files: Export function can be used by other modules to serve files. Don't serve files by default unless http_files_dir is set
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53 local base_path = opts.path;
4e58fde55594 mod_http_files: Export function can be used by other modules to serve files. Don't serve files by default unless http_files_dir is set
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54 local dir_indices = opts.index_files or dir_indices;
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55 local directory_index = opts.directory_index;
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56 local function serve_file(event, path)
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57 local request, response = event.request, event.response;
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58 local orig_path = request.path;
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59 local full_path = base_path .. (path and "/"..path or "");
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60 local attr = stat(full_path);
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61 if not attr then
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62 return 404;
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63 end
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13553f4132a8 mod_http_files: Compare If-Modified-Since to last modification date
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64
5262
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65 local request_headers, response_headers = request.headers, response.headers;
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66
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67 local last_modified = os_date('!%a, %d %b %Y %H:%M:%S GMT', attr.modification);
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68 response_headers.last_modified = last_modified;
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69
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70 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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71 response_headers.etag = etag;
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72
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73 local if_none_match = request_headers.if_none_match
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74 local if_modified_since = request_headers.if_modified_since;
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75 if etag == if_none_match
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76 or (not if_none_match and last_modified == if_modified_since) then
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77 return 304;
4868
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78 end
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79
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80 local data = cache[path];
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81 if data and data.etag == etag then
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82 response_headers.content_type = data.content_type;
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83 data = data.data;
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84 elseif attr.mode == "directory" then
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85 if full_path:sub(-1) ~= "/" then
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86 local path = { is_absolute = true, is_directory = true };
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87 for dir in orig_path:gmatch("[^/]+") do path[#path+1]=dir; end
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88 response_headers.location = build_path(path);
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89 return 301;
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90 end
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91 for i=1,#dir_indices do
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92 if stat(full_path..dir_indices[i], "mode") == "file" then
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93 return serve_file(event, path..dir_indices[i]);
5238
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94 end
0cc0359d8c39 mod_http_files: Generate simple directory index.
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95 end
5262
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96
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97 if not directory_index then
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98 return 403;
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99 else
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100 local html = require"util.stanza".stanza("html")
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101 :tag("head"):tag("title"):text(path):up()
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102 :tag("meta", { charset="utf-8" }):up()
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103 :up()
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104 :tag("body"):tag("h1"):text(path):up()
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105 :tag("ul");
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106 for file in lfs.dir(full_path) do
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107 if file:sub(1,1) ~= "." then
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parents: 5261
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108 local attr = stat(full_path..file) or {};
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109 html:tag("li", { class = attr.mode })
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110 :tag("a", { href = file }):text(file)
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diff changeset
111 :up():up();
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112 end
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113 end
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114 data = "<!DOCTYPE html>\n"..tostring(html);
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diff changeset
115 cache[path] = { data = data, content_type = mime_map.html; etag = etag; };
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116 response_headers.content_type = mime_map.html;
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117 end
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diff changeset
118
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119 else
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120 local f, err = open(full_path, "rb");
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121 if f then
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122 data, err = f:read("*a");
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parents: 5261
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123 f:close();
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124 end
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125 if not data then
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126 module:log("debug", "Could not open or read %s. Error was %s", full_path, err);
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127 return 403;
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128 end
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129 local ext = path:match("%.([^./]+)$");
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130 local content_type = ext and mime_map[ext];
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131 cache[path] = { data = data; content_type = content_type; etag = etag };
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132 response_headers.content_type = content_type;
5238
0cc0359d8c39 mod_http_files: Generate simple directory index.
Kim Alvefur <zash@zash.se>
parents: 5237
diff changeset
133 end
0cc0359d8c39 mod_http_files: Generate simple directory index.
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parents: 5237
diff changeset
134
5262
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135 return response:send(data);
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
136 end
5233
342c46e62f50 mod_http_files: Return 404 faster if file does not exist
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parents: 5232
diff changeset
137
5262
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138 return serve_file;
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
139 end
1770
3e17002221eb mod_httpserver: Backport from trunk more thorough validation of URLs prior to processing
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parents: 1552
diff changeset
140
1667
c7bb2264e3b8 mod_httpserver: Set default file handler (you can now request static files as /*) and restructure code a bit
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parents: 1552
diff changeset
141
5262
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diff changeset
142 if base_path then
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Kim Alvefur <zash@zash.se>
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diff changeset
143 module:provides("http", {
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diff changeset
144 route = {
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145 ["GET /*"] = serve {
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diff changeset
146 path = base_path;
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147 directory_index = directory_index;
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148 }
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parents: 5261
diff changeset
149 };
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parents: 5261
diff changeset
150 });
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parents: 5261
diff changeset
151 else
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diff changeset
152 module:log("debug", "http_files_dir not set, assuming use by some other module");
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153 end
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diff changeset
154