feat: python sshnpd direct ssh

[Xlin123]

- What I did
Added Direct SSH
Fixed : #399, #400 #404
- How I did it
Direct SSH implemented
--> Added socket_connector and sshrv
Created more proper threading for several ssh connections
Added -s flag to sshnpd

- How to verify it
Tested Reverse tunnel with client version 3.4.2
Tested direct ssh with latest client release on windows (4.0.0-rc.8)

- Description for the changelog
feat: python sshnpd direct ssh

[Xlin123]

My forward ssh is still failing with sshnp failed: with sshnpd acknowledgement errors on refactor/noports_core

{"payload": 
  {"status": "connected", 
  "sessionId": "fab1aff1-6473-4b85-a92e-ee5f31541a87", 
 "ephemeralPrivateKey": "-----BEGIN OPENSSH PRIVATE KEY-----
  gibberish
  ----END OPENSSH PRIVATE KEY-----\n"
  }, 
"signature": "Qq9c6j5k7sht02v+TI+TxDWhi+luS64j8IaIIkbmGYSDplkpPe1g5g/jCHw2IinnAPLO19by3Kfh7eu6DZfcY+mw+v1mo099hr2yJLxfWgWaw+RY+beoSTxOfLOXBXh2EoSstPcT03R8QRhj2Zk31jBiQRLYWgIIFdFX8tfy0WZD7UQc1voR2cGGHnYuKprrSGoiTjMTBxh5QcVL8089Bcd07wnPObiHiaa4zO+gGUOF0iaUqS1RBvbJwLPwn0JmIv6B7gFZHmcPj+qf0r0Z6wHLr2PqTj9LNKtBlWfT/iXktWOH0/0wW9+R/8IEMrYo2PP1iiSbRfV1NX7MyhgY5w==", 
"signingAlgo": "rsa2048", 
"hashingAlgo": "sha256"
} 

@XavierChanth Is my payload wrong? Should I be encrypting the ssh pkey?
@cpswan This PR should fix whatever issues you're running into right now. If you want to merge is ASAP I can fix whatever is wrong with forward ssh later.

[XavierChanth]

@XavierChanth Is my payload wrong? Should I be encrypting the ssh pkey?

e.g.

{"payload":
   {"status":"connected",
   "sessionId":"e0bd9e24-8e5c-4c9d-b8ef-bf06185edcfa",
   "ephemeralPrivateKey":"-----BEGIN OPENSSH PRIVATE KEY-----\n
    ...
    -----END OPENSSH PRIVATE KEY-----\n"
   },
"signature":"IRIKMR4V+LUpyXJO6kScz74BcpZ7PZ9jQeMHBh1MwRl1U9rP44E0Hv78mMvI9ip9Qv8s3e+xsj9S6CKbC7DfNbZf3U2xnl+pWY2tm7m3skxZ3QCMK1w57EYRg8DSN8jd9AQ0G0+8tO00FCUMdT1AJYeNe50gMeG+z0uMsMqt9SyzN3+ICFyL0MeJFPJOP2PV6RFwFHvZpX7MIWACYVfHuXbJmI2oMluKA6g2zgm4XXj203TldvbMWnjQexpNaQqvEMX01bPrZwWB7J0u2KaKB1DbUoT73631sZfjeUOEAXGWebJskQYLRIUh1PWzJj/DnqwubNt0au9PDwiH+z0aoQ==",
"hashingAlgo":"sha256",
"signingAlgo":"rsa2048"}

Payload looks fine, what client version are you using?

[Xlin123]

@XavierChanth Is my payload wrong? Should I be encrypting the ssh pkey?

e.g.

{"payload":
   {"status":"connected",
   "sessionId":"e0bd9e24-8e5c-4c9d-b8ef-bf06185edcfa",
   "ephemeralPrivateKey":"-----BEGIN OPENSSH PRIVATE KEY-----\n
    ...
    -----END OPENSSH PRIVATE KEY-----\n"
   },
"signature":"IRIKMR4V+LUpyXJO6kScz74BcpZ7PZ9jQeMHBh1MwRl1U9rP44E0Hv78mMvI9ip9Qv8s3e+xsj9S6CKbC7DfNbZf3U2xnl+pWY2tm7m3skxZ3QCMK1w57EYRg8DSN8jd9AQ0G0+8tO00FCUMdT1AJYeNe50gMeG+z0uMsMqt9SyzN3+ICFyL0MeJFPJOP2PV6RFwFHvZpX7MIWACYVfHuXbJmI2oMluKA6g2zgm4XXj203TldvbMWnjQexpNaQqvEMX01bPrZwWB7J0u2KaKB1DbUoT73631sZfjeUOEAXGWebJskQYLRIUh1PWzJj/DnqwubNt0au9PDwiH+z0aoQ==",
"hashingAlgo":"sha256",
"signingAlgo":"rsa2048"}

Payload looks fine, what client version are you using?

I'm dart compiling the binary on refactor/noports_core.

[XavierChanth]

@XavierChanth Is my payload wrong? Should I be encrypting the ssh pkey?

e.g.

{"payload":
   {"status":"connected",
   "sessionId":"e0bd9e24-8e5c-4c9d-b8ef-bf06185edcfa",
   "ephemeralPrivateKey":"-----BEGIN OPENSSH PRIVATE KEY-----\n
    ...
    -----END OPENSSH PRIVATE KEY-----\n"
   },
"signature":"IRIKMR4V+LUpyXJO6kScz74BcpZ7PZ9jQeMHBh1MwRl1U9rP44E0Hv78mMvI9ip9Qv8s3e+xsj9S6CKbC7DfNbZf3U2xnl+pWY2tm7m3skxZ3QCMK1w57EYRg8DSN8jd9AQ0G0+8tO00FCUMdT1AJYeNe50gMeG+z0uMsMqt9SyzN3+ICFyL0MeJFPJOP2PV6RFwFHvZpX7MIWACYVfHuXbJmI2oMluKA6g2zgm4XXj203TldvbMWnjQexpNaQqvEMX01bPrZwWB7J0u2KaKB1DbUoT73631sZfjeUOEAXGWebJskQYLRIUh1PWzJj/DnqwubNt0au9PDwiH+z0aoQ==",
"hashingAlgo":"sha256",
"signingAlgo":"rsa2048"}

Payload looks fine, what client version are you using?

I'm dart compiling the binary on refactor/noports_core.

That's a little outdated, try from trunk

[XavierChanth]

I just published 4.0.0-rc.7, give that a try

[Xlin123]

I'll dig into the code a bit today, I might need to update or change how I'm signing the data.

INFO|2023-10-16 10:24:59.455026| sshnp |Signing Verification Result: ResultType: bool, Result: false, SigningMetadata: {HashingAlgo: sha256, SigningAlgo: rsa2048, SignatureTimestamp: 2023-10-16 14:24:59.454482Z} 
INFO|2023-10-16 10:24:59.455128| sshnp |svr.result is a bool 
INFO|2023-10-16 10:24:59.455159| sshnp |svr.result is false 
SHOUT|2023-10-16 10:24:59.455227| sshnp |Failed to verify signature of msg from @chess69 
SHOUT|2023-10-16 10:24:59.455261| sshnp |Exception: Exception: signature verification returned false using cached public key for @chess69 <privateKey>
SHOUT|2023-10-16 10:24:59.455298| sshnp |Notification value: {"payload": {"status": "connected", "sessionId": "2fae5f9f-658f-498e-a3c5-5469fc60446b", "ephemeralPrivateKey": "-----BEGIN OPENSSH PRIVATE KEY-----
.....
n-----END OPENSSH PRIVATE KEY-----\n"}, "signature": "SZq9Fzr/s5JYxZ/Z04WuUWUNkBgDSshZF24b6VsHdafLQ+rMOfdvwA37J2KDOwGb9qt4OLGLD0K1CSaf3JdVvv8xzJZLEAZ52A8cq3N/tSs3ja9/bXv4RY3o73z34JJXwtUQA0qyGim01LlUtX8ZPjIX0CodoYOEjglFEew38MlUWZoJ3J9U8LjEMhyJ53JjYDZqxojKbPrCbXMa87/WxB5ICKYE1BZNgMrun4nuiG06+FJoTe/N1GF0sY9R1bLJqSozZgC4N8NYAUao2+oXIyjFBVWhSigeopp2Ew69d79aQ4spmL1ZaxEQ4i/hrxG96D8cQKy1yvB5IqVWoV5n8w==", "signingAlgo": "rsa2048", "hashingAlgo": "sha256"} 
sshnp failed: with sshnpd acknowledgement errors

Stack Trace: #0      SSHNPForward.requestSocketTunnelFromDaemon (package:noports_core/src/sshnp/forward_direction/sshnp_forward.dart:60)
<asynchronous suspension>
#1      SSHNPForwardExecImpl.run (package:noports_core/src/sshnp/forward_direction/sshnp_forward_exec_impl.dart:40)
<asynchronous suspension>
#2      main.<anonymous closure> (file:///home/xavier/sshnoports/packages/sshnoports/bin/sshnp.dart:83)
<asynchronous suspension>
#3      main (file:///home/xavier/sshnoports/packages/sshnoports/bin/sshnp.dart:37)
<asynchronous suspension>

[cpswan]

@Xlin123 is this ready for review again?

[Xlin123]

@cpswan @XavierChanth Sorry for the long wait. Ready for review now.

The below at_python PR needs approving before this one.

[XavierChanth]

Following this PR, I'm going to open a discussion item to address how we want to handle releases for the python daemon

It would be nice for it to match the cadence of the dart daemon, but that's not realistic