The options "inet", "inet6" and "backlog" are valid listen options, but are
currently logged as errors (even though they do work):
2018-02-28 16:08:44.141 [error] <0.338.0>@ejabberd_listener:validate_module_option:630 unknown listen option 'backlog' for 'ejabberd_c2s' will be likely ignored, available options are: access, shaper, certfile, ciphers, dhfile, cafile, client_cafile, protocol_options, tls, tls_compression, starttls, starttls_required, tls_verify, zlib, max_fsm_queue
This adds the necessary validators so they are correctly recognized.
Call Mod:handle_auth_success/4 and Mod:handle_auth_failure/4 before
sending the SASL response rather than afterwards. This way, callbacks
can send a custom response and disconnect.
Incoming MUC PMs aren't carbon-copied, as the MUC service usually forks
them. However, don't suppress copying of outgoing PMs, where no such
forking takes place.
The option can be used to specify a period (in seconds) for a stream
negotiation to complete. If the timer fires, the stream is considered
as failed and the underlying connection gets closed. This is a global
option (you cannot set it per domain) and the default is 30 seconds.
The option is supposed to be used when `allow_local_users`
and `allow_transports` are not enough. It's an ACL where `deny`
means the message will be rejected (or a CAPTCHA would be
generated for a presence), and `allow` means the sender is
whitelisted and the stanza will pass through.
The default value is `none`, which means nothing is whitelisted.
The option emulates legacy behaviour which registers all routes
defined in `hosts` on a component connected. This behaviour
is considered harmful in the case when it's desired to multiplex
different components on the same port, so, to disable it,
set `global_routes` to `false`. The default value is `true`,
e.g. legacy behaviour is emulated: the only reason for this is
to maintain backward compatibility with existing deployments.
Since we got rid of all bottle-neck processes and we have
a connection pool for every database, the option is no longer
needed and in fact is detrimental: in practice what you get
is just a bunch of overloaded processes in the IQ handlers pool
no matter how much you increase the `iqdisc` value.
Given that there are close to zero operators understanding
the meaning of the option and, hence, not using it all,
it's not simply deprecated but completely removed.
The commit also deprecates the following functions:
- gen_iq_handler:add_iq_handler/6
- gen_iq_handler:handle/5
- gen_iq_handler:iqdisc/1
If the client acknowledged more stanzas than the server sent, close the
connection with a stream error rather than hiding client bugs by silently
adjusting the server's count.
