Add sshdconfig get

dsc/tests/dsc_sshdconfig.tests.ps1

@@ -0,0 +1,136 @@
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT License.
+BeforeDiscovery {
+    if ($IsWindows) {
+        $identity = [System.Security.Principal.WindowsIdentity]::GetCurrent()
+        $principal = [System.Security.Principal.WindowsPrincipal]::new($identity)
+        $isElevated = $principal.IsInRole([System.Security.Principal.WindowsBuiltInRole]::Administrator)
+        $sshdExists = ($null -ne (Get-Command sshd -CommandType Application -ErrorAction Ignore))
+        $skipTest = !$isElevated -or !$sshdExists
+    }
+}
+
+Describe 'SSHDConfig resource tests' -Skip:(!$IsWindows -or $skipTest) {
+    BeforeAll {
+        # set a non-default value in a temporary sshd_config file
+        "LogLevel Debug3`nPasswordAuthentication no" | Set-Content -Path $TestDrive/test_sshd_config
+        $filepath = Join-Path $TestDrive 'test_sshd_config'
+        $yaml = @"
+`$schema: https://aka.ms/dsc/schemas/v3/bundled/config/document.json
+metadata:
+  Microsoft.DSC:
+    securityContext: elevated
+resources:
+- name: sshdconfig
+  type: Microsoft.OpenSSH.SSHD/sshd_config
+  properties:
+    _metadata:
+      filepath: $filepath
+"@
+    }
+
+    It '<command> works' -TestCases @(
+        @{ command = 'get' }
+        @{ command = 'export' }
+    ) {
+        param($command)
+        $out = dsc config $command -i "$yaml" | ConvertFrom-Json -Depth 10
+        $LASTEXITCODE | Should -Be 0
+        if ($command -eq 'export') {
+            $out.resources.count | Should -Be 1
+            $out.resources[0].properties | Should -Not -BeNullOrEmpty
+            $out.resources[0].properties.port | Should -BeNullOrEmpty
+            $out.resources[0].properties.passwordAuthentication | Should -Be 'no'
+            $out.resources[0].properties._inheritedDefaults | Should -BeNullOrEmpty
+        } else {
+            $out.results.count | Should -Be 1
+            $out.results.result.actualState | Should -Not -BeNullOrEmpty
+            $out.results.result.actualState.port[0] | Should -Be 22
+            $out.results.result.actualState.passwordAuthentication | Should -Be 'no'
+            $out.results.result.actualState._inheritedDefaults | Should -Contain 'port'
+        }
+    }
+
+    It 'Export with filter works' {
+        $export_yaml = @"
+`$schema: https://aka.ms/dsc/schemas/v3/bundled/config/document.json
+metadata:
+    Microsoft.DSC:
+        securityContext: elevated
+resources:
+- name: sshdconfig
+  type: Microsoft.OpenSSH.SSHD/sshd_config
+  properties:
+    passwordauthentication: 'yes'
+    _metadata:
+      filepath: $filepath
+"@
+        $out = dsc config export -i "$export_yaml" | ConvertFrom-Json -Depth 10
+        $LASTEXITCODE | Should -Be 0
+        $out.resources.count | Should -Be 1
+        ($out.resources[0].properties.psobject.properties | Measure-Object).count | Should -Be 1
+        $out.resources[0].properties.passwordAuthentication | Should -Be 'no'
+    }
+
+    It '<command> with _includeDefaults specified works' -TestCases @(
+        @{ command = 'get'; includeDefaults = $false }
+        @{ command = 'export'; includeDefaults = $true }
+    ) {
+        param($command, $includeDefaults)
+        $filepath = Join-Path $TestDrive 'test_sshd_config'
+        $input = @"
+`$schema: https://aka.ms/dsc/schemas/v3/bundled/config/document.json
+metadata:
+  Microsoft.DSC:
+    securityContext: elevated
+resources:
+- name: sshdconfig
+  type: Microsoft.OpenSSH.SSHD/sshd_config
+  properties:
+    _includeDefaults: $includeDefaults
+    _metadata:
+        filepath: $filepath
+"@
+        $out = dsc config $command -i "$input" | ConvertFrom-Json -Depth 10
+        $LASTEXITCODE | Should -Be 0
+        if ($command -eq 'export') {
+            $out.resources.count | Should -Be 1
+            $out.resources[0].properties.loglevel | Should -Be 'debug3'
+            $out.resources[0].properties.port | Should -Be 22
+            $out.resources[0].properties._inheritedDefaults | Should -BeNullOrEmpty
+        } else {
+            $out.results.count | Should -Be 1
+            ($out.results.result.actualState.psobject.properties | Measure-Object).count | Should -Be 2
+            $out.results.result.actualState.loglevel | Should -Be 'debug3'
+            $out.results.result.actualState._inheritedDefaults | Should -BeNullOrEmpty
+        }
+    }
+
+    Context 'Surface a default value that has been set in file' {
+        BeforeAll {
+            "Port 22" | Set-Content -Path $TestDrive/test_sshd_config
+        }
+
+        It '<command> works' -TestCases @(
+            @{ command = 'get' }
+            @{ command = 'export' }
+        ) {
+            param($command)
+            $out = dsc config $command -i "$yaml" | ConvertFrom-Json -Depth 10
+            $LASTEXITCODE | Should -Be 0
+            if ($command -eq 'export') {
+                $out.resources.count | Should -Be 1
+                $out.resources[0].properties | Should -Not -BeNullOrEmpty
+                $out.resources[0].properties.port[0] | Should -Be 22
+                $out.resources[0].properties.passwordauthentication | Should -BeNullOrEmpty
+                $out.resources[0].properties._inheritedDefaults | Should -BeNullOrEmpty
+            } else {
+                $out.results.count | Should -Be 1
+                $out.results.result.actualState | Should -Not -BeNullOrEmpty
+                $out.results.result.actualState.port | Should -Be 22
+                $out.results.result.actualState.passwordAuthentication | Should -Be 'yes'
+                $out.results.result.actualState._inheritedDefaults | Should -Not -Contain 'port'
+            }
+        }
+    }
+}

sshdconfig/Cargo.toml

@@ -21,6 +21,7 @@ rust-i18n = { version = "3.1" }
 schemars = "1.0"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = { version = "1.0", features = ["preserve_order"] }
+tempfile = "3.8"
 thiserror = { version = "2.0" }
 tracing = "0.1.37"
 tracing-subscriber = { version = "0.3.17", features = ["ansi", "env-filter", "json"] }

sshdconfig/locales/en-us.toml

@@ -1,16 +1,19 @@
 _version = 1
 
 [args]
+getInput = "input to get for sshd_config or default shell settings"
+exportInput = "input to export from sshd_config"
 setInput = "input to set in sshd_config"
 
 [error]
 command = "Command"
 invalidInput = "Invalid Input"
+io = "IO"
 json = "JSON"
 language = "Language"
-notImplemented = "Not Implemented"
 parser = "Parser"
 parseInt = "Parse Integer"
+persist = "Persist"
 registry = "Registry"
 
 [get]
@@ -19,11 +22,10 @@ defaultShellCmdOptionMustBeString = "cmdOption must be a string"
 defaultShellEscapeArgsMustBe0Or1 = "'%{input}' must be a 0 or 1"
 defaultShellEscapeArgsMustBeDWord = "escapeArguments must be a DWord"
 defaultShellMustBeString = "shell must be a string"
-notImplemented = "get not yet implemented for Microsoft.OpenSSH.SSHD/sshd_config"
 windowsOnly = "Microsoft.OpenSSH.SSHD/Windows is only applicable to Windows"
 
 [main]
-export = "Export"
+export = "Export command: %{input}"
 schema = "Schema command:"
 set = "Set command: '%{input}'"
 
@@ -51,5 +53,9 @@ shellPathDoesNotExist = "shell path does not exist: '%{shell}'"
 shellPathMustNotBeRelative = "shell path must not be relative"
 
 [util]
+includeDefaultsMustBeBoolean = "_includeDefaults must be true or false"
+inputMustBeEmpty = "get command does not support filtering based on input settings"
+sshdConfigNotFound = "sshd_config not found at path: '%{path}'"
+sshdConfigReadFailed = "failed to read sshd_config at path: '%{path}'"
 sshdElevation = "elevated security context required"
 tracingInitError = "Failed to initialize tracing"

sshdconfig/src/args.rs

@@ -14,8 +14,10 @@ pub struct Args {
 
 #[derive(Subcommand)]
 pub enum Command {
-    /// Get default shell, eventually to be used for `sshd_config` and repeatable keywords
+    /// Get default shell and `sshd_config`, eventually to be used for repeatable keywords
     Get {
+        #[clap(short = 'i', long, help = t!("args.getInput").to_string())]
+        input: Option<String>,
         #[clap(short = 's', long, hide = true)]
         setting: Setting,
     },
@@ -24,8 +26,11 @@ pub enum Command {
         #[clap(short = 'i', long, help = t!("args.setInput").to_string())]
         input: String
     },
-    /// Export `sshd_config`
-    Export,
+    /// Export `sshd_config`, eventually to be used for repeatable keywords
+    Export {
+        #[clap(short = 'i', long, help = t!("args.exportInput").to_string())]
+        input: Option<String>
+    },
     Schema {
         // Used to inform which schema to generate
         #[clap(short = 's', long, hide = true)]

sshdconfig/src/error.rs

@@ -2,6 +2,7 @@
 // Licensed under the MIT License.
 
 use rust_i18n::t;
+use tempfile::PersistError;
 use thiserror::Error;
 
 #[derive(Debug, Error)]
@@ -10,16 +11,18 @@ pub enum SshdConfigError {
     CommandError(String),
     #[error("{t}: {0}", t = t!("error.invalidInput"))]
     InvalidInput(String),
+    #[error("{t}: {0}", t = t!("error.io"))]
+    IOError(#[from] std::io::Error),
     #[error("{t}: {0}", t = t!("error.json"))]
     Json(#[from] serde_json::Error),
     #[error("{t}: {0}", t = t!("error.language"))]
     LanguageError(#[from] tree_sitter::LanguageError),
-    #[error("{t}: {0}", t = t!("error.notImplemented"))]
-    NotImplemented(String),
     #[error("{t}: {0}", t = t!("error.parser"))]
     ParserError(String),
     #[error("{t}: {0}", t = t!("error.parseInt"))]
     ParseIntError(#[from] std::num::ParseIntError),
+    #[error("{t}: {0}", t = t!("error.persist"))]
+    PersistError(#[from] PersistError),
     #[cfg(windows)]
     #[error("{t}: {0}", t = t!("error.registry"))]
     RegistryError(#[from] registry_lib::error::RegistryError),