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prosodyctl check: Warn about invalid domain names in the config file

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This ensures that domain names of virtual hosts and components are valid in
XMPP, and that they are encoded correctly.
This commit is contained in:
Matthew Wild 2024-03-27 15:35:15 +00:00
parent f7b35d516f
commit 655c972a7d
1 changed files with 51 additions and 0 deletions
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51
util/prosodyctl/check.lua
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@ -738,6 +738,57 @@ local function check(arg)
end
end
-- Check hostname validity
do
local idna = require "util.encodings".idna;
local invalid_hosts = {};
local alabel_hosts = {};
for host in it.filter("*", pairs(configmanager.getconfig())) do
local _, h, _ = jid_split(host);
if not h or not idna.to_ascii(h) then
table.insert(invalid_hosts, host);
else
for label in h:gmatch("[^%.]+") do
if label:match("^xn%-%-") then
table.insert(alabel_hosts, host);
break;
end
end
end
end
if #invalid_hosts > 0 then
table.sort(invalid_hosts);
print("");
print(" Your configuration contains invalid host names:");
print(" "..table.concat(invalid_hosts, "\n "));
print("");
print(" Clients may not be able to log in to these hosts, or you may not be able to");
print(" communicate with remote servers.");
print(" Use a valid domain name to correct this issue.");
end
if #alabel_hosts > 0 then
table.sort(alabel_hosts);
print("");
print(" Your configuration contains incorrectly-encoded hostnames:");
for _, ahost in ipairs(alabel_hosts) do
print((" '%s' (should be '%s')"):format(ahost, idna.to_unicode(ahost)));
end
print("");
print(" Clients may not be able to log in to these hosts, or you may not be able to");
print(" communicate with remote servers.");
print(" To correct this issue, use the Unicode version of the domain in Prosody's config file.");
end
if #invalid_hosts > 0 or #alabel_hosts > 0 then
print("");
print("WARNING: Changing the name of a VirtualHost in Prosody's config file");
print(" WILL NOT migrate any existing data (user accounts, etc.) to the new name.");
ok = false;
end
end
print("Done.\n");
end
if not what or what == "dns" then