annotate mod_register_redirect/mod_register_redirect.lua @ 4954:e8a487c42b36 default tip

merge upstream
author Goffi <goffi@goffi.org>
date Sat, 28 May 2022 16:43:04 +0200
parents 2023cba9ead0
children
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1 -- (C) 2010-2011 Marco Cirillo (LW.Org)
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2 -- (C) 2011 Kim Alvefur
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3 --
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4 -- Registration Redirect module for Prosody
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5 --
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6 -- Redirects IP addresses not in the whitelist to a web page or another method to complete the registration.
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8 local st = require "util.stanza"
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9 local cman = require "core.configmanager"
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10
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11 local ip_wl = module:get_option_set("registration_whitelist", { "127.0.0.1", "::1" })
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12 local url = module:get_option_string("registration_url", nil)
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13 local inst_text = module:get_option_string("registration_text", nil)
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14 local oob = module:get_option_boolean("registration_oob", true)
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15 local admins_g = cman.get("*", "core", "admins")
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16 local admins_l = cman.get(module:get_host(), "core", "admins")
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17 local no_wl = module:get_option_boolean("no_registration_whitelist", false)
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18
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19 if type(admins_g) ~= "table" then admins_g = nil end
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20 if type(admins_l) ~= "table" then admins_l = nil end
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21
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22 function reg_redirect(event)
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23 local stanza, origin = event.stanza, event.origin
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24
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25 if not no_wl and ip_wl:contains(origin.ip) then return; end
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26
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27 -- perform checks to set default responses and sanity checks.
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28 if not inst_text then
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29 if url and oob then
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30 if url:match("^%w+[:].*$") then
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31 if url:match("^(%w+)[:].*$") == "http" or url:match("^(%w+)[:].*$") == "https" then
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32 inst_text = "Please visit "..url.." to register an account on this server."
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33 elseif url:match("^(%w+)[:].*$") == "mailto" then
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34 inst_text = "Please send an e-mail at "..url:match("^%w+[:](.*)$").." to register an account on this server."
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35 elseif url:match("^(%w+)[:].*$") == "xmpp" then
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36 inst_text = "Please contact "..module:get_host().."'s server administrator via xmpp to register an account on this server at: "..url:match("^%w+[:](.*)$")
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37 else
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38 module:log("error", "This module supports only http/https, mailto or xmpp as URL formats.")
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39 module:log("error", "If you want to use personalized instructions without an Out-Of-Band method,")
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40 module:log("error", "specify: register_oob = false; -- in your configuration along your banner string (register_text).")
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41 return origin.send(st.error_reply(stanza, "wait", "internal-server-error")) -- bouncing request.
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42 end
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43 else
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44 module:log("error", "Please check your configuration, the URL you specified is invalid")
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45 return origin.send(st.error_reply(stanza, "wait", "internal-server-error")) -- bouncing request.
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46 end
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47 else
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48 if admins_l then
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49 local ajid; for _,v in ipairs(admins_l) do ajid = v ; break end
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50 inst_text = "Please contact "..module:get_host().."'s server administrator via xmpp to register an account on this server at: "..ajid
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51 else
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52 if admins_g then
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53 local ajid; for _,v in ipairs(admins_g) do ajid = v ; break end
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54 inst_text = "Please contact "..module:get_host().."'s server administrator via xmpp to register an account on this server at: "..ajid
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55 else
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56 module:log("error", "Please be sure to, _at the very least_, configure one server administrator either global or hostwise...")
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57 module:log("error", "if you want to use this module, or read it's configuration wiki at: https://modules.prosody.im/mod_register_redirect.html")
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58 return origin.send(st.error_reply(stanza, "wait", "internal-server-error")) -- bouncing request.
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59 end
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60 end
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61 end
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62 elseif inst_text and url and oob then
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63 if not url:match("^%w+[:].*$") then
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64 module:log("error", "Please check your configuration, the URL specified is not valid.")
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65 return origin.send(st.error_reply(stanza, "wait", "internal-server-error")) -- bouncing request.
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66 end
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67 end
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68
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69 -- Prepare replies.
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70 local reply = st.reply(event.stanza)
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71 if oob then
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72 reply:query("jabber:iq:register")
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73 :tag("instructions"):text(inst_text):up()
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74 :tag("x", {xmlns = "jabber:x:oob"})
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75 :tag("url"):text(url);
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76 else
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77 reply:query("jabber:iq:register")
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78 :tag("instructions"):text(inst_text):up()
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79 end
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80
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81 if stanza.attr.type == "get" then
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82 return origin.send(reply)
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83 else
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84 return origin.send(st.error_reply(stanza, "cancel", "not-authorized"))
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85 end
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86 end
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87
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88 module:hook("stanza/iq/jabber:iq:register:query", reg_redirect, 10)