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plugins/mod_http_errors.lua @ 10689:c6c904e4776e
MUC: Persist affiliation_data in new MUC format!
author | Matthew Wild <mwild1@gmail.com> |
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date | Thu, 12 Mar 2020 20:32:07 +0000 |
parent | 10574:f70c874b7936 |
child | 11153:e4075ca84a1a |
rev | line source |
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mod_http_errors: Module to handle HTTP errors with a HTML page
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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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30 margin-top : 14%; | |
31 text-align : center; | |
32 background-color : #F8F8F8; | |
33 font-family : sans-serif | |
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34 } |
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36 h1 { | |
37 font-size : xx-large | |
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38 } |
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40 p { | |
41 font-size : x-large | |
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42 } |
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44 p+p { |
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46 font-family : courier | |
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47 } |
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48 </style> |
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49 </head> |
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50 <body> |
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51 <h1>{title}</h1> |
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52 <p>{message}</p> |
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53 <p>{extra?}</p> |
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54 </body> |
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55 </html> |
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56 ]]; |
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57 |
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58 local function get_page(code, extra) |
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59 local message = messages[code]; |
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60 if always_serve or message then |
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61 message = message or default_message; |
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62 return render(html, { |
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63 title = rawget(codes, code) or ("Code "..tostring(code)); |
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64 message = message[1]:gsub("%%", function () |
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65 return message[math.random(2, math.max(#message,2))]; |
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66 end); |
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67 extra = extra; |
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68 }); |
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69 end |
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70 end |
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71 |
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72 module:hook_object_event(server, "http-error", function (event) |
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73 if event.response then |
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74 event.response.headers.content_type = "text/html; charset=utf-8"; |
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75 end |
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76 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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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 local request, response = event.request, event.response; |
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81 if request and response and request.path == "/" and response.status_code == 404 then |
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82 response.headers.content_type = "text/html; charset=utf-8"; |
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83 return render(html, { |
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84 title = "Prosody is running!"; |
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85 message = "Welcome to the XMPP world!"; |
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86 }); |
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87 end |
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88 end, 1); |
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89 |