prosody-modules
1921ae4449b8
mod_conversejs/mod_conversejs.lua

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mod_conversejs/mod_conversejs.lua @ 3598:1921ae4449b8

mod_conversejs: Separate out templates into separate configurable files (breaks 0.9 compat)
author Kim Alvefur <zash@zash.se>
date Thu, 16 May 2019 08:45:41 +0200
parent 3494:4feab7e87675
child 3599:42fa833169bb
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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.."/css/converse.min.css");
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28
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29 local html_template;
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30
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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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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 jid = module.host;
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71 default_domain = module.host;
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72 domain_placeholder = module.host;
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73 allow_registration = allow_registration;
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74 registration_domain = allow_registration and module.host or nil;
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75 };
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76
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77 if type(user_options) == "table" then
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78 for k,v in pairs(user_options) do
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79 converse_options[k] = v;
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80 end
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81 end
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82
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83 return converse_options;
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84 end
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85
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86 local add_tags = module:get_option_array("conversejs_tags", {});
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87
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88 module:provides("http", {
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89 title = "Converse.js";
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90 route = {
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91 GET = function (event)
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92 local converse_options = get_converse_options();
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93
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94 event.response.headers.content_type = "text/html";
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95 return render(html_template, {
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96 header_scripts = { js_url };
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97 header_style = { css_url };
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98 header_tags = add_tags;
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99 conversejs = {
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100 options = converse_options;
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101 startup = { script = js_template:format(json_encode(converse_options)); }
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102 };
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103 });
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104 end;
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105
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106 ["GET /prosody-converse.js"] = function (event)
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107 local converse_options = get_converse_options();
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108
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109 event.response.headers.content_type = "application/javascript";
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110 return js_template:format(json_encode(converse_options));
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111 end;
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112 }
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113 });
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114