prosody-modules
36b6e3e3f9e2
mod_conversejs/mod_conversejs.lua

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mod_conversejs/mod_conversejs.lua @ 4047:36b6e3e3f9e2

mod_conversejs: Disable automatic BOSH/WS endpoint discovery Converse.js 7.0 will enable this by default, but when using this module the BOSH and WebSocket endpoints are provided in the generated HTML, so automatic discovery is not needed and unlikely to work without an additional module.
author Kim Alvefur <zash@zash.se>
date Thu, 18 Jun 2020 15:24:34 +0200
parent 3737:49e65a7e9415
child 4147:3a06dea21ea1
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 -- mod_conversejs
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2 -- Copyright (C) 2017 Kim Alvefur
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3
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4 local json_encode = require"util.json".encode;
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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, { json = json_encode });
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7
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8 module:depends"http";
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9
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10 local has_bosh = pcall(function ()
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11 module:depends"bosh";
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12 end);
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13
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14 local has_ws = pcall(function ()
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15 module:depends("websocket");
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16 end);
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17
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18 pcall(function ()
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19 module:depends("bookmarks");
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20 end);
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21
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22 local cdn_url = module:get_option_string("conversejs_cdn", "https://cdn.conversejs.org");
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23
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24 local version = module:get_option_string("conversejs_version", "");
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25 if version ~= "" then version = "/" .. version end
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26 local js_url = module:get_option_string("conversejs_script", cdn_url..version.."/dist/converse.min.js");
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27 local css_url = module:get_option_string("conversejs_css", cdn_url..version.."/dist/converse.min.css");
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29 local html_template;
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31 do
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32 local template_filename = module:get_option_string(module.name .. "_html_template", "template.html");
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33 local template_file, err = module:load_resource(template_filename);
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34 if template_file then
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35 html_template, err = template_file:read("*a");
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36 template_file:close();
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37 end
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38 if not html_template then
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39 module:log("error", "Error loading HTML template: %s", err);
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40 html_template = render("<h1>mod_{module} could not read the template</h1>\
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41 <p>Tried to open <b>{filename}</b></p>\
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42 <pre>{error}</pre>",
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43 { module = module.name, filename = template_filename, error = err });
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44 end
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45 end
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46
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47 local js_template;
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48 do
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49 local template_filename = module:get_option_string(module.name .. "_js_template", "template.js");
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50 local template_file, err = module:load_resource(template_filename);
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51 if template_file then
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52 js_template, err = template_file:read("*a");
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53 template_file:close();
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54 end
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55 if not js_template then
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56 module:log("error", "Error loading JS template: %s", err);
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57 js_template = render("console.log(\"mod_{module} could not read the JS template: %s\", {error|json})",
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58 { module = module.name, filename = template_filename, error = err });
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59 end
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60 end
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61
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62 local user_options = module:get_option("conversejs_options");
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63
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64 local function get_converse_options()
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65 local allow_registration = module:get_option_boolean("allow_registration", false);
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66 local converse_options = {
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67 bosh_service_url = has_bosh and module:http_url("bosh","/http-bind") or nil;
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68 websocket_url = has_ws and module:http_url("websocket","xmpp-websocket"):gsub("^http", "ws") or nil;
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69 authentication = module:get_option_string("authentication") == "anonymous" and "anonymous" or "login";
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70 discover_connection_methods = false;
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71 jid = module.host;
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72 default_domain = module.host;
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73 domain_placeholder = module.host;
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74 allow_registration = allow_registration;
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75 registration_domain = allow_registration and module.host or nil;
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76 view_mode = "fullscreen";
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77 };
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78
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79 if type(user_options) == "table" then
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80 for k,v in pairs(user_options) do
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81 converse_options[k] = v;
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82 end
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83 end
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84
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85 return converse_options;
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86 end
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87
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88 local add_tags = module:get_option_array("conversejs_tags", {});
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89
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90 module:provides("http", {
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91 title = "Converse.js";
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92 route = {
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93 GET = function (event)
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94 local converse_options = get_converse_options();
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95
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96 event.response.headers.content_type = "text/html";
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97 return render(html_template, {
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98 service_name = module:get_option_string("name");
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99 header_scripts = { js_url };
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100 header_style = { css_url };
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101 header_tags = add_tags;
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102 conversejs = {
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103 options = converse_options;
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104 startup = { script = js_template:format(json_encode(converse_options)); }
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105 };
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106 });
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107 end;
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108
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109 ["GET /prosody-converse.js"] = function (event)
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110 local converse_options = get_converse_options();
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111
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112 event.response.headers.content_type = "application/javascript";
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113 return js_template:format(json_encode(converse_options));
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114 end;
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115 }
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116 });
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117