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annotate mod_debug_omemo/mod_debug_omemo.lua @ 4686:76af816739f3

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mod_debug_omemo: Fix traceback in case of zero devices Turns out ipairs(nil) in Lua 5.4 does not throw until the first iterator.
author Kim Alvefur <zash@zash.se>
date Mon, 13 Sep 2021 21:47:01 +0200
parents 07b6f444bafb
children 41ddb782320c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
4682
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1 local array = require "util.array";
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2 local jid = require "util.jid";
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3 local set = require "util.set";
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4 local st = require "util.stanza";
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5 local url_escape = require "util.http".urlencode;
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6
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7 local base_url = "https://"..module.host.."/";
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8
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9 local render_html_template = require"util.interpolation".new("%b{}", st.xml_escape, {
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10 urlescape = url_escape;
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11 lower = string.lower;
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12 classname = function (s) return (s:gsub("%W+", "-")); end;
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13 relurl = function (s)
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14 if s:match("^%w+://") then
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15 return s;
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16 end
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17 return base_url.."/"..s;
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18 end;
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19 });
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20 local render_url = require "util.interpolation".new("%b{}", url_escape, {
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21 urlescape = url_escape;
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22 noscheme = function (url)
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23 return (url:gsub("^[^:]+:", ""));
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24 end;
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25 });
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26
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27 local mod_pep = module:depends("pep");
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28
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29 local mam = module:open_store("archive", "archive");
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30
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31 local function get_user_omemo_info(username)
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32 local everything_valid = true;
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33 local any_device = false;
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34 local omemo_status = {};
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35 local omemo_devices;
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36 local pep_service = mod_pep.get_pep_service(username);
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37 if pep_service and pep_service.nodes then
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38 local ok, _, device_list = pep_service:get_last_item("eu.siacs.conversations.axolotl.devicelist", true);
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39 if ok and device_list then
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40 device_list = device_list:get_child("list", "eu.siacs.conversations.axolotl");
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41 end
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42 if device_list then
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43 omemo_devices = {};
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44 for device_entry in device_list:childtags("device") do
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45 any_device = true;
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46 local device_info = {};
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47 local device_id = tonumber(device_entry.attr.id or "");
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48 if device_id then
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49 device_info.id = device_id;
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50 local bundle_id = ("eu.siacs.conversations.axolotl.bundles:%d"):format(device_id);
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51 local have_bundle, _, bundle = pep_service:get_last_item(bundle_id, true);
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52 if have_bundle and bundle and bundle:get_child("bundle", "eu.siacs.conversations.axolotl") then
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53 device_info.have_bundle = true;
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54 local config_ok, bundle_config = pep_service:get_node_config(bundle_id, true);
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55 if config_ok and bundle_config then
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56 device_info.bundle_config = bundle_config;
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57 if bundle_config.max_items == 1
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58 and bundle_config.access_model == "open"
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59 and bundle_config.persist_items == true
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60 and bundle_config.publish_model == "publishers" then
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61 device_info.valid = true;
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62 end
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63 end
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64 end
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65 end
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66 if device_info.valid == nil then
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67 device_info.valid = false;
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68 everything_valid = false;
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69 end
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70 table.insert(omemo_devices, device_info);
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71 end
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72
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73 local config_ok, list_config = pep_service:get_node_config("eu.siacs.conversations.axolotl.devicelist", true);
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74 if config_ok and list_config then
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75 omemo_status.config = list_config;
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76 if list_config.max_items == 1
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77 and list_config.access_model == "open"
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78 and list_config.persist_items == true
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79 and list_config.publish_model == "publishers" then
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80 omemo_status.config_valid = true;
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81 end
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82 end
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83 if omemo_status.config_valid == nil then
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84 omemo_status.config_valid = false;
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85 everything_valid = false;
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86 end
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87 end
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88 end
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89 omemo_status.valid = everything_valid and any_device;
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90 return {
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91 status = omemo_status;
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92 devices = omemo_devices;
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93 };
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94 end
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95
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96 local access_model_text = {
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97 open = "Public";
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98 whitelist = "Private";
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99 roster = "Contacts only";
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100 presence = "Contacts only";
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101 };
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102
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103 local function render_message(event, path)
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104 local username, message_id = path:match("^([^/]+)/(.+)$");
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105 if not username then
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106 return 400;
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107 end
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108 local message;
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109 for _, result in mam:find(username, { key = message_id }) do
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110 message = result;
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111 end
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112 if not message then
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113 return 404;
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114 end
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115
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116 local user_omemo_status = get_user_omemo_info(username);
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117
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118 local user_rids = set.new(array.pluck(user_omemo_status.devices or {}, "id")) / tostring;
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119
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120 local message_omemo_header = message:find("{eu.siacs.conversations.axolotl}encrypted/header");
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121 local message_rids = set.new();
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122 local rid_info = {};
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123 if message_omemo_header then
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124 for key_el in message_omemo_header:childtags("key") do
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125 local rid = key_el.attr.rid;
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126 if rid then
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127 message_rids:add(rid);
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128 local prekey = key_el.attr.prekey;
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129 rid_info = {
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130 prekey = prekey and (prekey == "1" or prekey:lower() == "true");
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131 };
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132 end
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133 end
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134 end
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135
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136 local rids = user_rids + message_rids;
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137
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138 local direction = jid.bare(message.attr.to) == (username.."@"..module.host) and "incoming" or "outgoing";
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139
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140 local is_encrypted = not not message_omemo_header;
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141
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142 local sender_id = message_omemo_header and message_omemo_header.attr.sid or nil;
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143
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144 local f = module:load_resource("view.tpl.html");
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145 if not f then
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146 return 500;
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147 end
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148 local tpl = f:read("*a");
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149
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150 local data = { user = username, rids = {} };
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151 for rid in rids do
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152 data.rids[rid] = {
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153 status = message_rids:contains(rid) and "Encrypted" or user_rids:contains(rid) and "Missing" or nil;
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parents:
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154 prekey = rid_info.prekey;
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155 };
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parents:
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156 end
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157
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158 data.message = {
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159 type = message.attr.type or "normal";
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160 direction = direction;
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161 encryption = is_encrypted and "encrypted" or "unencrypted";
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162 };
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parents:
diff changeset
163
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164 data.omemo = {
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165 sender_id = sender_id;
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166 status = user_omemo_status.status.valid and "no known issues" or "problems";
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parents:
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167 };
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parents:
diff changeset
168
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169 data.omemo.devices = {};
4686
76af816739f3 mod_debug_omemo: Fix traceback in case of zero devices
Kim Alvefur <zash@zash.se>
parents: 4685
diff changeset
170 if user_omemo_status.devices then
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Kim Alvefur <zash@zash.se>
parents: 4685
diff changeset
171 for _, device_info in ipairs(user_omemo_status.devices) do
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parents: 4685
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172 data.omemo.devices[("%d"):format(device_info.id)] = {
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parents: 4685
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173 status = device_info.valid and "OK" or "Problem";
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Kim Alvefur <zash@zash.se>
parents: 4685
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174 bundle = device_info.have_bundle and "Published" or "Missing";
76af816739f3 mod_debug_omemo: Fix traceback in case of zero devices
Kim Alvefur <zash@zash.se>
parents: 4685
diff changeset
175 access_model = access_model_text[device_info.bundle_config and device_info.bundle_config.access_model or nil];
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Kim Alvefur <zash@zash.se>
parents: 4685
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176 };
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Kim Alvefur <zash@zash.se>
parents: 4685
diff changeset
177 end
76af816739f3 mod_debug_omemo: Fix traceback in case of zero devices
Kim Alvefur <zash@zash.se>
parents: 4685
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178 else
76af816739f3 mod_debug_omemo: Fix traceback in case of zero devices
Kim Alvefur <zash@zash.se>
parents: 4685
diff changeset
179 data.omemo.devices[false] = { status = "No devices", };
4682
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parents:
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180 end
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181
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182 event.response.headers.content_type = "text/html; charset=utf-8";
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parents:
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183 return render_html_template(tpl, data);
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parents:
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184 end
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parents:
diff changeset
185
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186 local function check_omemo_fallback(event)
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187 local message = event.stanza;
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188
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189 local message_omemo_header = message:find("{eu.siacs.conversations.axolotl}encrypted/header");
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parents:
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190 if not message_omemo_header then return; end
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
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191
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192 local to_bare = jid.bare(message.attr.to);
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
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parents:
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193
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194 local archive_stanza_id;
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parents:
diff changeset
195 for stanza_id_tag in message:childtags("stanza-id", "urn:xmpp:sid:0") do
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parents:
diff changeset
196 if stanza_id_tag.attr.by == to_bare then
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
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parents:
diff changeset
197 archive_stanza_id = stanza_id_tag.attr.id;
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parents:
diff changeset
198 end
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parents:
diff changeset
199 end
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parents:
diff changeset
200 if not archive_stanza_id then
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parents:
diff changeset
201 return;
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parents:
diff changeset
202 end
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
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parents:
diff changeset
203
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
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parents:
diff changeset
204 local debug_url = render_url(module:http_url().."/view/{username}/{message_id}", {
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
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parents:
diff changeset
205 username = jid.node(to_bare);
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
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parents:
diff changeset
206 message_id = archive_stanza_id;
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
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parents:
diff changeset
207 });
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
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parents:
diff changeset
208
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
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parents:
diff changeset
209 local body = message:get_child("body");
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
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parents:
diff changeset
210 if not body then
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
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parents:
diff changeset
211 body = st.stanza("body")
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parents:
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212 :text("This message is encrypted using OMEMO, but could not be decrypted by your device.\nFor more information see: "..debug_url);
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
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parents:
diff changeset
213 message:reset():add_child(body);
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
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parents:
diff changeset
214 else
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
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parents:
diff changeset
215 body:text("\n\nOMEMO debug information: "..debug_url);
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
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parents:
diff changeset
216 end
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
217 end
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
218
4685
07b6f444bafb mod_debug_omemo: Adjust priority to act after mod_mam archived
Kim Alvefur <zash@zash.se>
parents: 4682
diff changeset
219 module:hook("message/bare", check_omemo_fallback, -0.5);
07b6f444bafb mod_debug_omemo: Adjust priority to act after mod_mam archived
Kim Alvefur <zash@zash.se>
parents: 4682
diff changeset
220 module:hook("message/full", check_omemo_fallback, -0.5);
4682
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
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parents:
diff changeset
221
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
222 module:depends("http")
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
223 module:provides("http", {
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
224 route = {
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
225 ["GET /view/*"] = render_message;
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
226 };
e4e5474420e6 mod_debug_omemo: OMEMO debugging tool
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
227 });