Commit Graph

110 Commits

Author SHA1 Message Date
b1f7304eeb Now rendering the index.html using the Templ library.
This is in preparation for:
1. creating a base page
2. using tabs: Home, Using, Downloads, Status
3. htmx
2024-07-28 21:31:17 +02:00
d17ad9bc3e Added pprof to convergeserver and optionally to
the agent if PPROF_PORT is set.

Fixed issue with converge server not cleaning up goroutines because of blocking channel. Made sure to create channels with > 1 size everywhere it can be done. The blocking behavior of a default channel size is mostly in the way.

Known issue: Killing the SSH client will lead to the server side process not being terminated and some goroutines still running in the agent. This would require additional investigation to solve. The remote processes are still being cleaned up ok (at least on linux) when the agent exits.

This should not be an issue at all since the agent is a short-lived process and when running in a containerized environment with containers running on demand the cleanup will definitely work.
2024-07-28 11:48:31 +02:00
7a51e3ac45 Unique ids for clients generated by converge server and made available to the ssh session through a net.Conn extension that passes the ID to the SSH session through the LocalAddr(). 2024-07-27 22:37:40 +02:00
5a492f3855 initialization of username, password on client (from server) and initialization of agentinfo on server is now done as soon as the agent registered and not through a side channel.
Making use of some simple utilities for GOB to make it easy to send objects over the line.
2024-07-27 20:46:53 +02:00
621bbd8ca6 GOB channel for easily and asynchronously using GOB on a single network connection, also dealing with timeouts and errors in a good way.
Protocol version is now checked when the agent connects to the converge server.

Next up: sending connection metadata and username password from server to agent and sending environment information back to the server. This means then that the side channel will only be used for expiry time messages and session type with the client id passed in so the converge server can than correlate the results back to the correct channel.
2024-07-27 11:21:35 +02:00
f82601d07c Lots of refactoring.
Now hijacking the ssh connection setup in the listener to exchange some information before passing the connection on to the SSH server.

Next step is to do the full exchange of required information and to make it easy some simple Read and Write methods with timeouts are needed that use gob.
2024-07-26 22:40:56 +02:00
b7f3de88bb Updated deployment with username and password settings.
index.html template now also uses the configured password.
2024-07-26 21:11:40 +02:00
37bef8814c user security best practice of having no default passwords. 2024-07-26 20:57:04 +02:00
d02b7eade3 password of converge now configurable through
CONVERGE_USERNAME and CONVERGE_PASSWORD environment
variables.
2024-07-26 20:51:05 +02:00
514e57768f good url validation. 2024-07-26 20:40:01 +02:00
Erik Brakkee
a59011b00c Some cleanup in the agent code.
Now supporting authorized SSH keys in the
.authorized_keys file.
2024-07-25 21:40:51 +02:00
Erik Brakkee
2ed81c3174 communication between agent and server. Removed the flags libray for command-line parsing.
Heartbeat mechanism from client to server over the custom connection for sending events to guarantee that the connectoin stays up.
2024-07-25 19:51:11 +02:00
d9f490a2b6 removed read and write dead lines. Appears to be still working. 2024-07-24 22:26:15 +02:00
78819f1ebe status update now reported to the server. More robustness needed. 2024-07-24 22:03:12 +02:00
459300b0d3 First version with basic communication from agent to server working. 2024-07-24 21:39:14 +02:00
5bd3795534 direct communication channel now setup between agent and converge server 2024-07-24 20:23:33 +02:00
20ce37a1cb Extraction of communication setup in separate entity with client and related server code close together to make the setup easier to understand. 2024-07-24 20:04:35 +02:00
Erik Brakkee
bdedef12f0 welcome message for users now specific for windows and linux
monitoring of hold file changes and messaging to users to provide more
  interactivity
2024-07-24 18:46:25 +02:00
1ed49c638e added fsnotify example, to check bahavior on windows. 2024-07-23 22:55:03 +02:00
be3e6b7c4a added insecure flag to allow invalid certificates. 2024-07-23 22:27:09 +02:00
0b57a31eaa command-line argument parsing with error handling for all commands that are referred to on the docs page. 2024-07-23 21:51:48 +02:00
bc12d13c16 converge now uses flags for the command-line parsing. 2024-07-23 21:07:41 +02:00
ff1c13cc98 fileserver now uses go template language.
updated docs for windows.
2024-07-23 20:47:51 +02:00
cd477b7b0a moved fileserver to separate file. 2024-07-23 19:36:35 +02:00
633b79fae4 eliminated unused setWindowSize files. 2024-07-23 19:31:43 +02:00
Erik Brakkee
75ac9a46f3 * fixes for windows
* detect kill ssh session
* include sftp session in the count of ssh sessions
* log session type in the agent
2024-07-23 19:26:59 +02:00
b016917bdc list of shells to try in windows. 2024-07-22 23:57:36 +02:00
3bd0e3f3e1 refactoring to support both windows and linux with totally different Pty code. 2024-07-22 23:05:51 +02:00
Erik Brakkee
1ebee30c8c cross compilation on windows working.
pty.Start() is not supported on windows
2024-07-22 19:34:26 +02:00
982977e796 renamed cidebug module to converge 2024-07-21 23:12:04 +02:00
cd1eb7338d agent now giving the exact commands to run to use it from the client
side.
2024-07-21 23:02:54 +02:00
7e6b4d9272 lots of work to make it actually work.
Icluding the server keep alive interval.
Fix where expiry duration was added twice.
2024-07-21 22:36:17 +02:00
12ecb72329 Lots of work on docuemtation. The docs page now shows the correct
installation dependent URLs. For now using ServerALiveInterval
to avoid disconnects.
2024-07-21 21:41:53 +02:00
21f50a4005 updated docs for new proxycommand. 2024-07-21 19:00:01 +02:00
0508ce0daf added proxycomamnd to be used directly by ssh 2024-07-21 18:51:30 +02:00
33e23b69bd redirect all non-matched urls to the docs. 2024-07-21 15:43:54 +02:00
1307295e20 now with online downloads and docs. 2024-07-21 15:33:31 +02:00
7461167484 now serving files from a downloads directory so that the executables
can be downloaded from a ci job
2024-07-21 14:30:01 +02:00
22a3589d1d simple session management solution with a .hold file and messages to the
user with better formatting.
2024-07-21 14:12:53 +02:00
134c72d8d0 basic session management is now implemented. 2024-07-21 12:34:34 +02:00
c25129a9bf agent now uses a fixed host key using the go embed package.
Printing welcome message when user logs in.
2024-07-21 11:22:05 +02:00
8981efd0b5 lots of restructuring.
Experimensts with websockets over yamux failed. Now going to use a
second connection to the server from the agent.
2024-07-20 21:55:34 +02:00
98e46ff7cc moved websocket utils to separate package to allow use by the agent. 2024-07-20 19:37:17 +02:00
c55af94857 generating key automatically on the agent side. Should be done later at the rendez-vous server since there will be many agents running on different servers 2024-07-20 18:40:22 +02:00
e90c3ed57a easy switching between different service types.
Working now with ssh as well.
2024-07-20 14:29:47 +02:00
5055cebb7c structuring into packages 2024-07-20 14:09:04 +02:00
cfccf04f9d working server
* administration appears coorect
* multiple clients for one agent
* logging of active connections
* simple echo server on the agent.
2024-07-20 13:35:49 +02:00
6c8e0adccf agent is now setting up ws connection to server.
Next: adding multiplexing and listening on a socket.
2024-07-20 10:56:14 +02:00
f3cbd9012a First agent version, passing in external listener fo ssh so it can be used later with yamux as well. 2024-07-20 10:43:38 +02:00
3b2b9162ba cleanup now works. Clients and agents can connect and disconnect at will. 2024-07-19 21:48:54 +02:00
8842c37a66 dynamic publicId now working with single connection to agent. Cleanup is not working yet. 2024-07-19 21:13:57 +02:00
e2c2cbd0ef rendezvous mechanism with fixed id is now working. 2024-07-19 20:29:51 +02:00
f59c8368ea first rendez vous:
1. two websocket clients connecting: one as agent and one as client
2. bidirectional communication between the two
2024-07-19 19:31:34 +02:00
ada8dee0aa further generalizatio of synchronizing two streams of data. 2024-07-18 21:25:00 +02:00
650b40dfec now using in wstotcp as well. 2024-07-18 21:18:40 +02:00
188d949d65 moved websocket wrapper to iowrappers package. 2024-07-18 21:14:23 +02:00
46a7588896 generalizing websocket connection to reader/writer. 2024-07-18 20:58:15 +02:00
4eb83d033a ssh client -> tcptows -> wstotcp -> sshserver works. 2024-07-18 19:48:06 +02:00
cc35288d8a added makefile for building. 2024-07-18 19:12:09 +02:00
9cbfa812ca restructuring. 2024-07-18 19:04:33 +02:00