prosody
736e7ec8cd2e
plugins/mod_http_files.lua

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plugins/mod_http_files.lua @ 5263:736e7ec8cd2e

mod_http_files: Replace file listing with an event, allowing a different plugin to generate it
author Kim Alvefur <zash@zash.se>
date Fri, 21 Dec 2012 20:08:33 +0100
parent 5262:4e58fde55594
child 5264:700ff21a0451
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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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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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
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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10 local server = require"net.http.server";
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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)
Matthew Wild <mwild1@gmail.com>
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11 local lfs = require "lfs";
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12
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e0373e0dd048 mod_http_files: Add Last-Modified header
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13 local os_date = os.date;
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14 local open = io.open;
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Matthew Wild <mwild1@gmail.com>
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15 local stat = lfs.attributes;
5257
b125892e187c mod_http_files: Escape paths in redirects
Kim Alvefur <zash@zash.se>
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16 local build_path = require"socket.url".build_path;
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17
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
Kim Alvefur <zash@zash.se>
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18 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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19 local dir_indices = module:get_option("http_index_files", { "index.html", "index.htm" });
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20 local directory_index = module:get_option_boolean("http_dir_listing");
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21
5237
b1038f449e15 mod_http_files: Have mimetypes in a shared table. Get mimetypes from /etc/mime.types if exists.
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22 local mime_map = module:shared("mime").types;
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23 if not mime_map then
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24 mime_map = {
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25 html = "text/html", htm = "text/html",
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26 xml = "application/xml",
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27 txt = "text/plain",
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28 css = "text/css",
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29 js = "application/javascript",
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30 png = "image/png",
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31 gif = "image/gif",
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32 jpeg = "image/jpeg", jpg = "image/jpeg",
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33 svg = "image/svg+xml",
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34 };
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35 module:shared("mime").types = mime_map;
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36
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37 local mime_types, err = open(module:get_option_string("mime_types_file", "/etc/mime.types"),"r");
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38 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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39 local mime_data = mime_types:read("*a");
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40 mime_types:close();
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41 setmetatable(mime_map, {
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42 __index = function(t, ext)
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43 local typ = mime_data:match("\n(%S+)[^\n]*%s"..(ext:lower()).."%s") or "application/octet-stream";
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44 t[ext] = typ;
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45 return typ;
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46 end
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47 });
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48 end
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49 end
2771
c9834f338a4e mod_httpserver: Return Content-Type header based on file extension.
Waqas Hussain <waqas20@gmail.com>
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50
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51 local cache = setmetatable({}, { __mode = "kv" }); -- Let the garbage collector have it if it wants to.
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52
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53 function serve(opts)
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54 local base_path = opts.path;
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55 local dir_indices = opts.index_files or dir_indices;
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56 local directory_index = opts.directory_index;
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57 local function serve_file(event, path)
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58 local request, response = event.request, event.response;
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59 local orig_path = request.path;
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60 local full_path = base_path .. (path and "/"..path or "");
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61 local attr = stat(full_path);
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62 if not attr then
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63 return 404;
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64 end
5248
13553f4132a8 mod_http_files: Compare If-Modified-Since to last modification date
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65
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66 local request_headers, response_headers = request.headers, response.headers;
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67
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68 local last_modified = os_date('!%a, %d %b %Y %H:%M:%S GMT', attr.modification);
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69 response_headers.last_modified = last_modified;
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70
5262
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71 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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72 response_headers.etag = etag;
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73
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74 local if_none_match = request_headers.if_none_match
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75 local if_modified_since = request_headers.if_modified_since;
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76 if etag == if_none_match
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77 or (not if_none_match and last_modified == if_modified_since) then
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78 return 304;
4868
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79 end
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80
5262
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81 local data = cache[path];
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82 if data and data.etag == etag then
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83 response_headers.content_type = data.content_type;
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84 data = data.data;
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85 elseif attr.mode == "directory" then
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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86 if full_path:sub(-1) ~= "/" then
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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87 local path = { is_absolute = true, is_directory = true };
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88 for dir in orig_path:gmatch("[^/]+") do path[#path+1]=dir; end
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89 response_headers.location = build_path(path);
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90 return 301;
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91 end
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92 for i=1,#dir_indices do
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93 if stat(full_path..dir_indices[i], "mode") == "file" then
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94 return serve_file(event, path..dir_indices[i]);
5238
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95 end
0cc0359d8c39 mod_http_files: Generate simple directory index.
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96 end
5262
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97
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98 if directory_index then
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99 data = server._events.fire_event("directory-index", { path = request.path, full_path = full_path });
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100 end
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101 if not data then
5262
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102 return 403;
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103 end
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104 cache[path] = { data = data, content_type = mime_map.html; etag = etag; };
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105 response_headers.content_type = mime_map.html;
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106
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107 else
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108 local f, err = open(full_path, "rb");
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109 if f then
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110 data, err = f:read("*a");
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111 f:close();
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112 end
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113 if not data then
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114 module:log("debug", "Could not open or read %s. Error was %s", full_path, err);
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115 return 403;
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116 end
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117 local ext = path:match("%.([^./]+)$");
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118 local content_type = ext and mime_map[ext];
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119 cache[path] = { data = data; content_type = content_type; etag = etag };
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120 response_headers.content_type = content_type;
5238
0cc0359d8c39 mod_http_files: Generate simple directory index.
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121 end
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122
5262
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123 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)
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124 end
5233
342c46e62f50 mod_http_files: Return 404 faster if file does not exist
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125
5262
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126 return serve_file;
1667
c7bb2264e3b8 mod_httpserver: Set default file handler (you can now request static files as /*) and restructure code a bit
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127 end
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3e17002221eb mod_httpserver: Backport from trunk more thorough validation of URLs prior to processing
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128
1667
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129
5262
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130 if base_path then
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131 module:provides("http", {
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132 route = {
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133 ["GET /*"] = serve {
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134 path = base_path;
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135 directory_index = directory_index;
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136 }
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137 };
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138 });
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diff changeset
139 else
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140 module:log("debug", "http_files_dir not set, assuming use by some other module");
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141 end
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diff changeset
142