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annotate mod_jsxc/mod_jsxc.lua @ 5869:faf1f1c833e8

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mod_pubsub_serverinfo: update reference to XEP.
author Guus der Kinderen <guus.der.kinderen@gmail.com>
date Thu, 14 Mar 2024 09:55:46 +0100
parents 75b6e5df65f9
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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4bdfd83e091f mod_jsxc: Demo module serving JSXC relatively easily from Prosody
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1 -- mod_jsxc
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2 -- Copyright (C) 2021 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 module:depends"bosh";
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10 module:depends"http_libjs";
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11
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12 local jquery_url = module:get_option_string("jquery_url", "/share/jquery/jquery.min.js");
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13
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14 local cdn_url = module:get_option_string("jsxc_cdn", "");
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15
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16 local version = module:get_option_string("jsxc_version", "");
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17 if version ~= "" then version = "/" .. version end
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18
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19 local serve_dist = nil;
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20 local resources = module:get_option_path("jsxc_resources");
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21 if resources then
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22 local serve;
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23 if prosody.process_type == "prosody" then
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24 -- Prosody >= trunk / 0.12
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25 local http_files = require "net.http.files";
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26 serve = http_files.serve;
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27 else
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28 -- Prosody <= 0.11
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29 serve = module:depends "http_files".serve;
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30 end
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31 local mime_map = module:shared("/*/http_files/mime").types or { css = "text/css", js = "application/javascript" };
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32 serve_dist = serve({ path = resources, mime_map = mime_map });
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33
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34 cdn_url = module:http_url();
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35 end
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36
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37 local js_url = module:get_option_string("jsxc_script", cdn_url..version.."/dist/jsxc.bundle.js");
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38 local css_url = module:get_option_string("jsxc_css", cdn_url..version.."/dist/styles/jsxc.bundle.css");
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39
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40 local html_template;
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41
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42 do
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43 local template_filename = module:get_option_string(module.name .. "_html_template", "templates/template.html");
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44 local template_file, err = module:load_resource(template_filename);
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45 if template_file then
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46 html_template, err = template_file:read("*a");
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47 template_file:close();
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48 end
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49 if not html_template then
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50 module:log("error", "Error loading HTML template: %s", err);
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51 html_template = render("<h1>mod_{module} could not read the template</h1>\
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52 <p>Tried to open <b>{filename}</b></p>\
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53 <pre>{error}</pre>",
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54 { module = module.name, filename = template_filename, error = err });
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55 end
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56 end
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58 local js_template;
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59 do
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60 local template_filename = module:get_option_string(module.name .. "_js_template", "templates/template.js");
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61 local template_file, err = module:load_resource(template_filename);
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62 if template_file then
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63 js_template, err = template_file:read("*a");
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64 template_file:close();
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65 end
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66 if not js_template then
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67 module:log("error", "Error loading JS template: %s", err);
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68 js_template = render("console.log(\"mod_{module} could not read the JS template: %s\", {error|json})",
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69 { module = module.name, filename = template_filename, error = err });
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70 end
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71 end
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72
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73 local function get_jsxc_options()
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74 return { xmpp = { url = module:http_url("bosh", "/http-bind"), domain = module.host } };
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75 end
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76
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77 local add_tags = module:get_option_array("jsxc_tags", {});
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78
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79 module:provides("http", {
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80 title = "jsxc.js";
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81 route = {
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82 GET = function (event)
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83 local jsxc_options = get_jsxc_options();
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84
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85 event.response.headers.content_type = "text/html";
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86 return render(html_template, {
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87 service_name = module:get_option_string("name");
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88 header_scripts = { jquery_url, js_url };
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89 header_style = { css_url };
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90 header_tags = add_tags;
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91 jsxcjs = {
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92 options = jsxc_options;
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93 startup = { script = js_template:format(json_encode(jsxc_options)); }
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94 };
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95 });
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96 end;
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97
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98 ["GET /prosody-jsxc.js"] = function (event)
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99 local jsxc_options = get_jsxc_options();
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100
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101 event.response.headers.content_type = "application/javascript";
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102 return js_template:format(json_encode(jsxc_options));
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103 end;
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104 ["GET /dist/*"] = serve_dist;
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105 }
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106 });
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107