prosody
d336b28b4002
plugins/mod_http_errors.lua

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plugins/mod_http_errors.lua @ 11395:d336b28b4002

mod_http_errors: Style tweak Weird to have the background all the way to the edge of the viewport. Would be nice if this could be done without the extra span.
author Kim Alvefur <zash@zash.se>
date Sun, 21 Feb 2021 07:59:17 +0100
parent 11390:226fd5d3a295
child 11403:747e8245f180
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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{margin-top:14%;text-align:center;background-color:#f8f8f8;font-family:sans-serif}
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30 h1{font-size:xx-large}
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31 p{font-size:x-large}
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32 p.warning>span{font-size:large;background-color:yellow}
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33 p.extra{font-size:large;font-family:courier}
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34 @media(prefers-color-scheme:dark){
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35 body{background-color:#161616;color:#eee}
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36 p.warning>span{background-color:inherit;color:yellow}
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37 }
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38 </style>
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39 </head>
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40 <body>
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41 <h1>{title}</h1>
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42 <p>{message}</p>
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43 {warning&<p class="warning"><span>&#9888; {warning?} &#9888;</span></p>}
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44 {extra&<p class="extra">{extra?}</p>}
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45 </body>
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46 </html>
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47 ]];
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48
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49 local function get_page(code, extra)
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50 local message = messages[code];
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51 if always_serve or message then
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52 message = message or default_message;
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53 return render(html, {
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54 title = rawget(codes, code) or ("Code "..tostring(code));
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55 message = message[1]:gsub("%%", function ()
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56 return message[math.random(2, math.max(#message,2))];
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57 end);
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58 extra = extra;
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59 });
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60 end
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61 end
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62
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63 module:hook_object_event(server, "http-error", function (event)
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64 if event.response then
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65 event.response.headers.content_type = "text/html; charset=utf-8";
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66 end
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67 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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68 end);
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69
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70 module:hook("http-message", function (event)
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71 if event.response then
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72 event.response.headers.content_type = "text/html; charset=utf-8";
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73 end
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74 return render(html, event);
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75 end);
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76
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77 module:hook_object_event(server, "http-error", function (event)
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78 local request, response = event.request, event.response;
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79 if request and response and request.path == "/" and response.status_code == 404 then
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80 response.headers.content_type = "text/html; charset=utf-8";
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81 return render(html, {
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82 title = "Prosody is running!";
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83 message = "Welcome to the XMPP world!";
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84 });
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85 end
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86 end, 1);
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87