prosody-modules
8ed1989e99f9
mod_cloud_notify_encrypted/mod_cloud_notify_encrypted.lua

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mod_cloud_notify_encrypted/mod_cloud_notify_encrypted.lua @ 4456:8ed1989e99f9

mod_cloud_notify_encrypted: Update to latest spec, fixes unreliable call notifications
author Matthew Wild <mwild1@gmail.com>
date Mon, 22 Feb 2021 13:11:35 +0000
parent 4373:41ac0941b217
child 4457:091d06c7d724
comparison
equal deleted inserted replaced
4455:89e54247ade6 4456:8ed1989e99f9
1 local array = require "util.array";
1 local base64 = require "util.encodings".base64; 2 local base64 = require "util.encodings".base64;
2 local ciphers = require "openssl.cipher"; 3 local ciphers = require "openssl.cipher";
3 local jid = require "util.jid"; 4 local jid = require "util.jid";
4 local json = require "util.json"; 5 local json = require "util.json";
5 local random = require "util.random"; 6 local random = require "util.random";
7 local set = require "util.set";
6 local st = require "util.stanza"; 8 local st = require "util.stanza";
7 9
8 local xmlns_jmi = "urn:xmpp:jingle-message:0"; 10 local xmlns_jmi = "urn:xmpp:jingle-message:0";
9 local xmlns_push = "urn:xmpp:push:0"; 11 local xmlns_push = "urn:xmpp:push:0";
10 local xmlns_push_encrypt = "tigase:push:encrypt:0"; 12 local xmlns_push_encrypt = "tigase:push:encrypt:0";
74 elseif original_stanza.attr.type ~= "error" then 76 elseif original_stanza.attr.type ~= "error" then
75 local jmi_propose = original_stanza:get_child("propose", xmlns_jmi); 77 local jmi_propose = original_stanza:get_child("propose", xmlns_jmi);
76 if jmi_propose then 78 if jmi_propose then
77 push_payload.type = "call"; 79 push_payload.type = "call";
78 push_payload.sid = jmi_propose.attr.id; 80 push_payload.sid = jmi_propose.attr.id;
81 local media_types = set.new();
82 for description in jmi_propose:childtags("description") do
83 local media_type = description.attr.media;
84 if media_type then
85 media_types:add(media_type);
86 end
87 end
88 push_payload.media = array.collect(media_types:items());
79 else 89 else
80 push_payload.type = "chat"; 90 push_payload.type = "chat";
81 end 91 end
82 end 92 end
83 elseif original_stanza.name == "presence" 93 elseif original_stanza.name == "presence"
92 -- FIXME: luaossl does not expose the EVP_CTRL_GCM_GET_TAG API, so we append 16 NUL bytes 102 -- FIXME: luaossl does not expose the EVP_CTRL_GCM_GET_TAG API, so we append 16 NUL bytes
93 -- Siskin does not validate the tag anyway. 103 -- Siskin does not validate the tag anyway.
94 local encrypted_payload = base64.encode(ciphers.new("AES-128-GCM"):encrypt(key_binary, iv):final(push_json)..string.rep("\0", 16)); 104 local encrypted_payload = base64.encode(ciphers.new("AES-128-GCM"):encrypt(key_binary, iv):final(push_json)..string.rep("\0", 16));
95 local encrypted_element = st.stanza("encrypted", { xmlns = xmlns_push_encrypt, iv = base64.encode(iv) }) 105 local encrypted_element = st.stanza("encrypted", { xmlns = xmlns_push_encrypt, iv = base64.encode(iv) })
96 :text(encrypted_payload); 106 :text(encrypted_payload);
107 if push_payload.type == "call" then
108 encrypted_payload.attr.type = "voip";
109 event.important = true;
110 end
97 -- Replace the unencrypted notification data with the encrypted one 111 -- Replace the unencrypted notification data with the encrypted one
98 event.notification_payload 112 event.notification_payload
99 :remove_children("x", "jabber:x:data") 113 :remove_children("x", "jabber:x:data")
100 :add_child(encrypted_element); 114 :add_child(encrypted_element);
101 end 115 end
102 116
103 module:hook("cloud_notify/registration", handle_register); 117 module:hook("cloud_notify/registration", handle_register);
104 module:hook("cloud_notify/push", handle_push); 118 module:hook("cloud_notify/push", handle_push, 1);