prior to this change, allow_anonymous is only true | false
when set to 'false', even if the client is connected without
a username, the auth backends will be invoked.
this commit introduced a new config value `false_quick_deny`
to deny access immediately without involving auth backends
Fixes https://github.com/emqx/emqx-lua-hook/issues/118
1) If the Lua hook returns an empty list, it should replace the final
topic filter list.
2) The subscribed topics after running the 'client.subscribe' hook
should not contain topics filtered out by the hooks.
If there is no information in the `ClientInfo` map that can be used to
template a placeholder, then we should avoid letting the literal
placeholder match. Otherwise, the literal placeholder will allow
messages to be published/received unintentionally.
One can still use `{eq, <<"%c">>}` if matching the placeholder is
really desired.
Port of #7108 .
Sometimes, the `emqx_sys_mon:procinfo/1` might be called with
something that is not a port, like `[]`. Not sure on the conditions
for this to happen.
```
2022-02-18T20:05:02.671592+00:00 [error] Generic server emqx_sys_mon terminating. Reason: {badarg,[{erlang,port_info,[[]],[{error_info,#{module => erl_erts_errors}}]},{emqx_sys_mon,portinfo,1,[{file,"/emqx/apps/emqx/src/emqx_sys_mon.erl"},{line,205}]},{emqx_sys_mon,'-handle_info/2-fun-5-',2,[{file,"/emqx/apps/emqx/src/emqx_sys_mon.erl"},{line,150}]},{emqx_sys_mon,suppress,3,[{file,"/emqx/apps/emqx/src/emqx_sys_mon.erl"},{line,184}]},{gen_server,try_dispatch,4,[{file,"gen_server.erl"},{line,695}]},{gen_server,handle_msg,6,[{file,"gen_server.erl"},{line,771}]},{proc_lib,wake_up,3,[{file,"proc_lib.erl"},{line,236}]}]}. Last message: {monitor,<0.7796.0>,busy_dist_port,[]}. State: #{events => [{busy_dist_port,#Port<0.127>}],timer => #Ref<0.2758388682.1853620226.133920>}.
```
Without passing an empty argument list to `emqx_ctl:print`, formatting
instructions like `~n` are being printed literally.
```
Ignore.~nJoin the cluster successfully.~nCluster status: #{running_nodes =>
['emqx@emqx-0.int.thalesmg','emqx@emqx-1.int.thalesmg',
'emqx@emqx-2.int.thalesmg','emqx@emqx-3.int.thalesmg',
'emqx@emqx-4.int.thalesmg'],
stopped_nodes => []}
```
As described in the 5.0 specification, we should disconnect clients that
exceed the receive-maximum limit.
> If it receives more than Receive Maximum QoS 1 and QoS 2 PUBLISH packets
where it has not sent a PUBACK or PUBCOMP in response, **the Server uses a
DISCONNECT packet with Reason Code 0x9**
fix: #6447
(Same as #6289 )
This adds the information from `proc_lib:initial_call/1` and the
current stacktrace from the process info to `emqx_sys_mon:procinfo/1`
to aid in debugging some warnings with no context such as the
following:
```
2021-11-23T12:33:59.387818+00:00 [warning] info: [{old_heap_block_size,45988046},{heap_block_size,22177879},{mbuf_size,0},{stack_size,40},{old_heap_size,22354134},{heap_size,7106339}], line: 130, mfa: emqx_sys_mon:handle_info/2, msg: large_heap, procinfo: [{pid,<0.2667.0>},{memory,579763664},{total_heap_size,68510672},{heap_size,22177879},{stack_size,40},{min_heap_size,233},{initial_call,{proc_lib,init_p,5}},{current_function,{gen,do_call,4}},{registered_name,[]},{status,running},{message_queue_len,360945},{group_leader,<0.1660.0>},{priority,normal},{trap_exit,false},{reductions,16493271},{last_calls,false},{catchlevel,4},{trace,0},{suspending,[]},{sequential_trace_token,[]},{error_handler,error_handler}]
```
Prior to this fix, 'kick' and 'discard' calls may timeout (or
fail for other reason), failures lead to only a log, then
continue to allow the new session to get registered.
As a result, in case a client is stuck, there is no way to
force it to step down, end up with multiple connections (sessions)
for the client ID in dashboard.
After this fix, the stale pids are notified to shutdown
via a gen_server:call, and forced with a exit(Pid, kill) for any
exception happend to the gen_server:call
Prior to this commit, there was a bug in emqx_frame:split/2
the tail number of bytes was used for header number of bytes
whens split. As a result, if the tail happens to be longer
then haeder, the parsing state becomes invalid and it crashes
when the next packet arrives
The split was a over-engineered micro-optimization, so it
has been deleted instead of fixed
Prior to this change, plugin config files are only allowed
to be placed in the collective config dir etc/plugins.
In order to support external plugin's drop-in deployment,
this commit made emqx_plugins module to read conf file
in application's etc dir
This commit refactors emqx_trie implementation
with mainly two changes
1. Deleted the edge table.
In the old implementation, trie consist of nodes and edges.
e.g. for topic 'a/b/+/d', node 'a' with edge 'b'
points to node 'a/b' and so on.
However, edges can be computed at runtime,
so there is no need to store them in a table.
* feat(http_lib): Add uri parse to emqx_http_lib
* fix(webhook): call emqx_http_lib to parse uri
* fix(auth-http): Call emqx_http_lib to parse uri
* fix(rule-engine): call emqx_http_lib to parse uri
emqx_moduels for enterprise is refactored as a lib/plugin
in order to avoid merge conflicts, we make sure they can
co-exist in the same branch, because lib-opensource is compiled
in opensource project and lib-enterprise (to be added) is
compiled in enterprise project
* fix(share sub): fix the issue that the number of subscriptions dropped to 0 during the picking subscriber and caused a crash
* Connection Busy Alarms (#3992)
feat(emqx_connection): improve port_busy alarm
* fix(emqx_connection): tune the congestion alarm params
* chore(deps): upgrade esockd to 5.7.5
* fix(appup): correct the appup file
Future plugins will require emqx as a dependency.
This commit also brings back bcrypt to the system which was temporary
removed when converting to umbrella project
Ilya Averyanov