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annotate mod_welcome_page/mod_welcome_page.lua @ 4311:a6c253bc63a5

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End value is index+1 as per the newest revision https://xmpp.org/extensions/xep-0372.html#revision-history-v0.4.0
author Seve Ferrer <seve@delape.net>
date Tue, 22 Dec 2020 11:18:46 +0100
parents 8d1e996034ee
children ffb709728210
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9127fa98ee1e mod_welcome_page: New module to provide a friendly entrypoint to invite-based setups
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1 local st = require "util.stanza";
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2 local url_escape = require "util.http".urlencode;
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3 local render_html_template = require"util.interpolation".new("%b{}", st.xml_escape, {
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4 urlescape = url_escape;
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5 });
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6
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7 local template_path = module:get_option_string("welcome_page_template_path", module:get_directory().."/html");
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8 local user_vars = module:get_option("welcome_page_variables", {});
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9 local site_name = module:get_option("site_name", module.host);
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10 local invite_only = module:get_option_boolean("registration_invite_only", true);
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11 local open_registration = module:get_option_boolean("welcome_page_open_registration", not invite_only);
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12
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13 module:depends("http");
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14 local invites = module:depends("invites");
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15
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16 local function load_template(path)
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17 local template_file, err = io.open(path);
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18 if not template_file then
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19 error("Unable to load template file: "..tostring(err));
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20 end
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21 local template = template_file:read("*a");
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22 template_file:close();
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23 return template;
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24 end
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25
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26 local template = load_template(template_path.."/index.html");
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27
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28 local function serve_page(event)
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29 event.response.headers["Content-Type"] = "text/html; charset=utf-8";
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30 return render_html_template(template, {
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31 site_name = site_name;
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32 request = event.request;
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33 var = user_vars;
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34 });
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35 end
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36
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37 local function handle_submit(event)
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38 local submission = { allowed = open_registration, request = event.request };
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39 module:fire_event("mod_welcome_page/submission", submission);
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40 if not submission.allowed then
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41 event.response.headers["Content-Type"] = "text/html; charset=utf-8";
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42 return render_html_template(template, {
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43 site_name = site_name;
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44 request = event.request;
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45 var = user_vars;
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46 message = {
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47 class = "alert-danger";
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48 text = submission.reason or "Account creation is not possible at this time";
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49 };
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50 });
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51 end
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52
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53 local invite = invites.create_account(nil, { source = module.name });
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54 if not invite then
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55 return 500;
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56 end
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57
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58 event.response.headers.Location = invite.landing_page or invite.uri;
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59
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60 return 303;
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61 end
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62
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63 local http_files = module:depends("http_files");
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64
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65 module:provides("http", {
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66 default_path = "/";
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67 route = {
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68 ["GET"] = serve_page;
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69 ["GET /*"] = http_files.serve({ path = template_path });
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70 ["POST"] = handle_submit;
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71 };
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72 });