Annotate

plugins/mod_http_errors.lua @ 11369:87105a9a11df

util.datamanager: Support iterating over any file extension The 'typ' argument to all other functions is the actual file extension, but not here for some reason. May need this for iterating over the .bin files created by mod_http_file_share in the future.
author Kim Alvefur <zash@zash.se>
date Sun, 07 Feb 2021 19:23:33 +0100
parent 11155:8d692a8a8f48
child 11388:60a61c509d87
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1 module:set_global();
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2
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3 local server = require "net.http.server";
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4 local codes = require "net.http.codes";
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5 local xml_escape = require "util.stanza".xml_escape;
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6 local render = require "util.interpolation".new("%b{}", xml_escape);
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7
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8 local show_private = module:get_option_boolean("http_errors_detailed", false);
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9 local always_serve = module:get_option_boolean("http_errors_always_show", true);
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10 local default_message = { module:get_option_string("http_errors_default_message", "That's all I know.") };
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11 local default_messages = {
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12 [400] = { "What kind of request do you call that??" };
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13 [403] = { "You're not allowed to do that." };
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14 [404] = { "Whatever you were looking for is not here. %";
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15 "Where did you put it?", "It's behind you.", "Keep looking." };
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16 [500] = { "% Check your error log for more info.";
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17 "Gremlins.", "It broke.", "Don't look at me." };
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18 };
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19
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20 local messages = setmetatable(module:get_option("http_errors_messages", {}), { __index = default_messages });
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21
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22 local html = [[
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23 <!DOCTYPE html>
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24 <html>
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25 <head>
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26 <meta charset="utf-8">
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27 <title>{title}</title>
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28 <style>
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29 body {
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30 margin-top : 14%;
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31 text-align : center;
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32 background-color : #F8F8F8;
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33 font-family : sans-serif
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34 }
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35
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36 h1 {
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37 font-size : xx-large
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38 }
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39
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40 p {
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41 font-size : x-large
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42 }
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43
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44 p.extra {
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45 font-size : large;
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46 font-family : courier
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47 }
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48
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49 @media(prefers-color-scheme: dark) {
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50 body {
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51 background-color: #161616;
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52 color: #eee
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53 }
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54 }
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55 </style>
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56 </head>
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57 <body>
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58 <h1>{title}</h1>
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59 <p>{message}</p>
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60 {extra&<p class="extra">{extra?}</p>}
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61 </body>
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62 </html>
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63 ]];
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64
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65 local function get_page(code, extra)
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66 local message = messages[code];
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67 if always_serve or message then
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68 message = message or default_message;
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69 return render(html, {
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70 title = rawget(codes, code) or ("Code "..tostring(code));
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71 message = message[1]:gsub("%%", function ()
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72 return message[math.random(2, math.max(#message,2))];
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73 end);
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74 extra = extra;
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75 });
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76 end
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77 end
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78
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79 module:hook_object_event(server, "http-error", function (event)
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80 if event.response then
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81 event.response.headers.content_type = "text/html; charset=utf-8";
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82 end
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83 return get_page(event.code, (show_private and event.private_message) or event.message or (event.error and event.error.text));
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84 end);
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85
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86 module:hook_object_event(server, "http-error", function (event)
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87 local request, response = event.request, event.response;
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88 if request and response and request.path == "/" and response.status_code == 404 then
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89 response.headers.content_type = "text/html; charset=utf-8";
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90 return render(html, {
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91 title = "Prosody is running!";
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92 message = "Welcome to the XMPP world!";
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93 });
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94 end
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95 end, 1);
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96