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annotate mod_http_dir_index/http_dir_index/mod_http_dir_index.lua @ 886:1647b4fac445

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mod_http_dir_index: Add. Handle generation of directory listings for mod_http_files. Included icons from the Tango project are Public Domain
author Kim Alvefur <zash@zash.se>
date Sun, 23 Dec 2012 15:36:33 +0100
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1647b4fac445 mod_http_dir_index: Add. Handle generation of directory listings for mod_http_files. Included icons from the Tango project are Public Domain
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1 -- Prosody IM
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2 -- Copyright (C) 2012 Kim Alvefur
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3 --
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4 -- This project is MIT/X11 licensed. Please see the
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5 -- COPYING file in the source package for more information.
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6 --
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7
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8 module:set_global();
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9 local server = require"net.http.server";
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10 local lfs = require "lfs";
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11 local stat = lfs.attributes;
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12 local build_path = require"socket.url".build_path;
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13 local base64_encode = require"util.encodings".base64.encode;
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14 local tag = require"util.stanza".stanza;
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15 local template = require"util.template";
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16
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17 local function get_resource(resource)
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18 local fh = assert(module:load_resource(resource));
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19 local data = fh:read"*a";
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20 fh:close();
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21 return data;
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22 end
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23
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24 local dir_index_template = template(get_resource("resources/template.html"));
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25 local style = get_resource("resources/style.css"):gsub("url%((.-)%)", function(url)
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26 --module:log("debug", "Inlineing %s", url);
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27 return "url(data:image/png;base64,"..base64_encode(get_resource("resources/"..url))..")";
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28 end);
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29
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30 local function generate_directory_index(path, full_path)
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31 local filelist = tag("ul", { class = "filelist" } ):text"\n";
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32 if path ~= "/" then
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33 filelist:tag("li", { class = "parent directory" })
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34 :tag("a", { href = "..", rel = "up" }):text("Parent Directory"):up():up():text"\n"
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35 end
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36 for file in lfs.dir(full_path) do
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37 if file:sub(1,1) ~= "." then
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38 local attr = stat(full_path..file) or {};
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39 local path = { file };
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40 path.is_directory = attr.mode == "directory";
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41 filelist:tag("li", { class = attr.mode })
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42 :tag("a", { href = build_path(path) }):text(file):up()
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43 :up():text"\n";
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44 end
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45 end
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46 return "<!DOCTYPE html>\n"..tostring(dir_index_template.apply{
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47 path = path,
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48 style = style,
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49 filelist = filelist,
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50 footer = "Prosody "..prosody.version,
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51 });
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52 end
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53
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54 module:hook_object_event(server, "directory-index", function (event)
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55 local ok, data = pcall(generate_directory_index, event.path, event.full_path);
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56 if ok then return data end
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57 module:log("warn", data);
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58 end);