refactor: Remove file system bindings #516

XavierChanth · 2023-10-04T21:38:48Z

- What I did

Updated key arguments:
- Added -i just like ssh, -s is now a bool which sends the public key associated with -i
Renamed SSHNPImpl to SSHNPCore since it is abstract, it isn't really an implementation
A major overhaul to local file and ssh key management
- Added AtSSHKeyPair which holds a set of ssh keys
- Added LocalSSHKeyUtil and DartSSHKeyUtil to manage keys depending on what is available to store / create SSH Keys
- Added SSHNPDLocalSSHKeyHandler (a mixin on SSHNPCore) which exposes LocalSSHKeyUtil safely
- Added SSHNPDDartSSHKeyHandler (a mixin on SSHNPForwardDart) which exposes DartSSHKeyUtil safely
Split the ForwardDart implementation into two:
- one which expects that the local file system is still available, so it can output an ssh command
- another which expects that there is no local file system available and just passes a handler to the dartssh2 SSHClient
- The reason for this design decision is that I expect we will want to run the first in a separate isolate so that we can exit the main program safely, but then we can no longer access the SSHClient so it is not suitable for use in sshnp_gui
- I have not implemented these design decisions as I am leaving them open ended for an architecture discussion
Deferred payload handling from sshnpd to mixins, since it is implementation specific
- The default payload handler mixin exposes the ephemeralPrivateKey safely
Added type-safety to
- DefaultArgs
- String names in SSHNPArg/SSHNPParams
Replaced the rsa boolean with an enum of sshAlgorithms
- currently just ed25519 (default) and rsa

Several Action items come out of these changes:

Write new unit tests for arg parsing which validate against the new argument changes to:
- -i, -s, -r
Modify the GUI to be able to input the new arguments
- Need to write UI for handling SSH key management
Architecture discussion
- How to handle the ForwardDart Implementations

- How to verify it

NB - Ignore the failed client-trunk test, it is being provided the -i arg and doesn't know how to handle it.

- Description for the changelog
refactor: Remove file system bindings

… key management is not pure dart with it)

XavierChanth · 2023-10-06T22:38:00Z

Trunk test is failing because of the breaking change caused by adding the -i option, this makes me wonder if we even need the trunk test, or if it should be disabled by default like the backward tests.

XavierChanth · 2023-10-06T23:38:55Z

packages/noports_core/lib/src/sshnpd/sshnpd_params.dart

+  final String rootDomain;
+  final int localSshdPort;
+  final String ephemeralPermissions;
+  final SupportedSSHAlgorithm sshAlgorithm;


Remove late from all of these, which means I had to change how they get set below

XavierChanth · 2023-10-06T23:39:20Z

packages/noports_core/lib/src/sshrv/sshrv.dart

@@ -4,8 +4,6 @@ import 'package:noports_core/src/sshrv/sshrv_impl.dart';
 import 'package:socket_connector/socket_connector.dart';
 import 'package:noports_core/src/common/default_args.dart';

-typedef SSHRVGenerator = SSHRV Function(String, int, {int localSshdPort});


Moved this to src/common/types.dart

XavierChanth · 2023-10-06T23:41:16Z

packages/noports_core/lib/sshnp_core.dart

@@ -0,0 +1,3 @@
+library noports_core_sshnp_core;
+
+export 'src/sshnp/sshnp_core.dart';


Exported this so it can implemented in a flutter library later

If we want to optimize down the road

XavierChanth · 2023-10-06T23:42:08Z

packages/noports_core/pubspec.yaml

  at_utils: ^3.0.15
-  crypton: ^2.1.0
+  cryptography: ^2.7.0


Cryptography is used for generating ed25519 keys in pure dart

XavierChanth · 2023-10-06T23:42:48Z

packages/noports_core/pubspec.yaml

  meta: ^1.9.1
+  openssh_ed25519: ^1.1.0


openssh_ed25519 is used for converting the generated ed25519 keys to openssh format

XavierChanth · 2023-10-06T23:43:57Z

packages/noports_core/pubspec.yaml

  path: ^1.8.3
+  posix: ^5.0.0


posix is used for calling chmod to modify the written ephemeral keys

We will have to assess if this method works on windows, I have yet to test it

XavierChanth and others added 14 commits October 3, 2023 14:05

feat: checkin webserver code

be15739

feat: add webserver portion

62a51da

fix: path to binary dart files

c3f4826

fix: mount path

8f08ed5

chore: cleanup webserver setup

8770687

chore: setup mobile endpoints code

ae190ee

chore: safely guarantee a homeDirectory in noports_core

4bb2409

chore: remove unused import

8c2c18a

chore: flatten webserver demo

173144e

checkin webserver demo

a23bc41

chore: prevent double init completion on error

59a1c87

chore: decouple local filesystem from SSHNPImpl family

c5ab1ce

docs: add sshnp_class_diagrams.md

b0aa277

Merge branch 'trunk' into remove-file-system-bindings

2a05805

XavierChanth changed the title ~~DRAFT: Remove file system bindings~~ chore(DRAFT): Remove file system bindings Oct 4, 2023

XavierChanth added 15 commits October 4, 2023 18:25

chore: organize utils and remove dependency on path_provider

f3ce8f1

fix: remove path_provider dep

4025f49

chore: use new guarantees

6163de5

fix: DefaultArg typings

342f9d5

feat: complete sshKeyPair implementation in sshnp params

f76285a

fix: avoid late init errors

f394e84

fix: file system binding removal

9832956

fix: entrypoints for new -i arg

fe4dcab

fix: use -e for arg replacement

c5bb379

fix: escape sed expression

d0224af

fix: use non-path delimiter

7d91e3f

fix:

5c2fa2b

fix: try to prevent globbing

8dc51a0

fix: try no eval

25fe4ec

docs: comment a design decision

d747e04

XavierChanth added 8 commits October 6, 2023 16:45

chore: log notification value

693984f

chore: log all inits

e7319d0

chore: log when the ephemeral privateKey is set

76b400f

fix: build ephemeral affter requesting an ssh connection

1471bc1

chore: cleanup logging

8cbca2a

chore: print params during init

07b5d58

fix: add typesafety to sshnp args in sshnp params

5a8667f

chore: rename cliArg for ssh-client from pure-dart to dart (since ssh…

5c7d6e1

… key management is not pure dart with it)

XavierChanth added 5 commits October 6, 2023 18:39

chore: add a todo

f91cdca

chore: add a todo

589f735

docs: update diagrams

cb83e69

chore: remove identityType (not needed)

51d7c0f

chore: comment

985e013

XavierChanth commented Oct 6, 2023

View reviewed changes

chore: change import file name

9be9001

XavierChanth commented Oct 6, 2023

View reviewed changes

chore: remove unused dep

659f604

XavierChanth commented Oct 6, 2023

View reviewed changes

XavierChanth changed the title ~~refactor(DRAFT): Remove file system bindings~~ refactor: Remove file system bindings Oct 6, 2023

XavierChanth requested review from gkc and cconstab October 6, 2023 23:50

XavierChanth self-assigned this Oct 6, 2023

XavierChanth marked this pull request as ready for review October 6, 2023 23:50

gkc approved these changes Oct 9, 2023

View reviewed changes

gkc merged commit 982bb5a into trunk Oct 9, 2023
12 of 13 checks passed

gkc deleted the remove-file-system-bindings branch October 9, 2023 11:40

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refactor: Remove file system bindings #516

refactor: Remove file system bindings #516

XavierChanth commented Oct 4, 2023 •

edited

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XavierChanth commented Oct 6, 2023

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XavierChanth Oct 6, 2023

		@@ -0,0 +1,3 @@
		library noports_core_sshnp_core;

		export 'src/sshnp/sshnp_core.dart';

refactor: Remove file system bindings #516

refactor: Remove file system bindings #516

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XavierChanth commented Oct 4, 2023 • edited Loading

XavierChanth commented Oct 6, 2023

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XavierChanth commented Oct 4, 2023 •

edited

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