WMI resource provider

build.ps1

@@ -119,6 +119,7 @@ $projects = @(
     "tools/test_group_resource",
     "y2j"
     "powershellgroup"
+    "wmigroup"
     "resources/brew"
     "tools/dsctest"
 )

dsc_lib/src/configure/mod.rs

@@ -334,7 +334,8 @@ impl Configurator {
 
             debug!("resource_type {}", &resource.resource_type);
             //TODO: remove this after schema validation for classic PS resources is implemented
-            if resource.resource_type == "DSC/PowerShellGroup" {continue;}
+            if (resource.resource_type == "DSC/PowerShellGroup")
+            || (resource.resource_type == "DSC/WMIGroup") {continue;}
 
             let input = serde_json::to_string(&resource.properties)?;
             let schema = match dsc_resource.schema() {

dsc_lib/src/dscresources/command_resource.rs

@@ -481,7 +481,8 @@ fn verify_json(resource: &ResourceManifest, cwd: &str, json: &str) -> Result<(),
     debug!("resource_type - {}", resource.resource_type);
 
     //TODO: remove this after schema validation for classic PS resources is implemented
-    if resource.resource_type == "DSC/PowerShellGroup" {return Ok(());}
+    if (resource.resource_type == "DSC/PowerShellGroup")
+    || (resource.resource_type == "DSC/WMIGroup") {return Ok(());}
 
     let schema = get_schema(resource, cwd)?;
     let schema: Value = serde_json::from_str(&schema)?;

wmigroup/Tests/test_wmi_config.dsc.yaml

@@ -0,0 +1,13 @@
+# Example configuration for reading data from Windows WMI
+$schema: https://raw.githubusercontent.com/PowerShell/DSC/main/schemas/2023/10/config/document.json
+resources:
+- name: Get info from WMI
+  type: DSC/WMIGroup
+  properties:
+    resources:
+    - name: Get OS Info
+      type: root\cimv2/Win32_OperatingSystem
+    - name: Get OS Info
+      type: root\cimv2/Win32_BIOS
+    - name: Get OS Info
+      type: root\cimv2/Win32_Processor

wmigroup/Tests/wmigroup.tests.ps1

@@ -0,0 +1,41 @@
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT License.
+
+Describe 'PowerShellGroup resource tests' {
+
+    BeforeAll {
+        $OldPSModulePath  = $env:PSModulePath
+        $env:PSModulePath += ";" + $PSScriptRoot
+
+        $configPath = Join-path $PSScriptRoot "test_wmi_config.dsc.yaml"
+    }
+    AfterAll {
+        $env:PSModulePath = $OldPSModulePath
+    }
+
+    It 'List shows WMI resources' -Skip:(!$IsWindows){
+
+        $r = dsc resource list *OperatingSystem*
+        $LASTEXITCODE | Should -Be 0
+        $res = $r | ConvertFrom-Json
+        $res.Count | Should -BeGreaterOrEqual 1
+    }
+
+    It 'Get works on an individual WMI resource' -Skip:(!$IsWindows){
+
+        $r = dsc resource get -r root\cimv2/Win32_OperatingSystem
+        $LASTEXITCODE | Should -Be 0
+        $res = $r | ConvertFrom-Json
+        $res.actualState.CreationClassName | Should -Be "Win32_OperatingSystem"
+    }
+
+    It 'Get works on a config with WMI resources' -Skip:(!$IsWindows){
+
+        $r = Get-Content -Raw $configPath | dsc config get
+        $LASTEXITCODE | Should -Be 0
+        $res = $r | ConvertFrom-Json
+        $res.results[0].result.actualState[0].LastBootUpTime | Should -Not -BeNull
+        $res.results[0].result.actualState[1].BiosCharacteristics | Should -Not -BeNull
+        $res.results[0].result.actualState[2].NumberOfLogicalProcessors | Should -Not -BeNull
+    }
+}

wmigroup/copy_files.txt

@@ -0,0 +1 @@
+wmigroup.resource.ps1

wmigroup/wmigroup.dsc.resource.json

@@ -0,0 +1,37 @@
+{
+    "$schema": "https://raw.githubusercontent.com/PowerShell/DSC/main/schemas/2023/08/bundled/resource/manifest.json",
+    "type": "DSC/WMIGroup",
+    "version": "0.1.0",
+    "description": "Resource provider to WMI resources.",
+    "tags": [
+      "PowerShell"
+    ],
+    "provider": {
+      "list": {
+        "executable": "powershell",
+        "args": [
+          "-NoLogo",
+          "-NonInteractive",
+          "-NoProfile",
+          "-Command",
+          "./wmigroup.resource.ps1 List"
+        ]
+        },
+      "config": "full"
+    },
+    "get": {
+      "executable": "powershell",
+      "args": [
+        "-NoLogo",
+        "-NonInteractive",
+        "-NoProfile",
+        "-Command",
+        "$Input | ./wmigroup.resource.ps1 Get"
+      ],
+      "input": "stdin"
+    },
+    "exitCodes": {
+      "0": "Success",
+      "1": "Error"
+    }
+  }

wmigroup/wmigroup.resource.ps1

@@ -0,0 +1,129 @@
+# Copyright (c) Microsoft Corporation.
+# Licensed under the MIT License.
+
+[CmdletBinding()]
+param(
+    [ValidateSet('List','Get','Set','Test')]
+    $Operation = 'List',
+    [Parameter(ValueFromPipeline)]
+    $stdinput
+)
+
+$ProgressPreference = 'Ignore'
+$WarningPreference = 'Ignore'
+$VerbosePreference = 'Ignore'
+
+if ($Operation -eq 'List')
+{
+    $clases = Get-CimClass
+
+    foreach ($r in $clases)
+    {
+        $version_string = "";
+        $author_string = "";
+        $moduleName = "";
+
+        $propertyList = @()
+        foreach ($p in $r.CimClassProperties)
+        {
+            if ($p.Name)
+            {
+                $propertyList += $p.Name
+            }
+        }
+
+        $namespace = $r.CimSystemProperties.Namespace.ToLower().Replace('/','\')
+        $classname = $r.CimSystemProperties.ClassName
+        $fullResourceTypeName = "$namespace/$classname"
+        $requiresString = "DSC/WMIGroup"
+
+        $z = [pscustomobject]@{
+            type = $fullResourceTypeName;
+            version = $version_string;
+            path = "";
+            directory = "";
+            implementedAs = "";
+            author = $author_string;
+            properties = $propertyList;
+            requires = $requiresString
+        }
+
+        $z | ConvertTo-Json -Compress
+    }
+}
+elseif ($Operation -eq 'Get')
+{
+    $inputobj_pscustomobj = $null
+    if ($stdinput)
+    {
+        $inputobj_pscustomobj = $stdinput | ConvertFrom-Json
+    }
+
+    $result = @()
+
+    if ($inputobj_pscustomobj.resources) # we are processing a config batch
+    {
+        foreach($r in $inputobj_pscustomobj.resources)
+        {
+            $type_fields = $r.type -split "/"
+            $wmi_namespace = $type_fields[0]
+            $wmi_classname = $type_fields[1]
+
+            #TODO: add filtering based on supplied properties of $r
+            $wmi_instances = Get-CimInstance -Namespace $wmi_namespace -ClassName $wmi_classname
+
+            if ($wmi_instances)
+            {
+                $instance_result = @{}
+                $wmi_instance = $wmi_instances[0] # for 'Get' we return just first matching instance; for 'export' we return all instances
+                $wmi_instance.psobject.properties | %{ 
+                    if (($_.Name -ne "type") -and (-not $_.Name.StartsWith("Cim")))
+                    {
+                        $instance_result[$_.Name] = $_.Value
+                    }
+                }
+
+                $result += @($instance_result)
+            }
+            else
+            {
+                $errmsg = "Can not find type " + $r.type + "; please ensure that Get-CimInstance returns this resource type"
+                Write-Error $errmsg
+                exit 1
+            }
+        }
+    }
+    else # we are processing an individual resource call
+    {
+        $type_fields = $inputobj_pscustomobj.type -split "/"
+        $wmi_namespace = $type_fields[0]
+        $wmi_classname = $type_fields[1]
+
+        #TODO: add filtering based on supplied properties of $inputobj_pscustomobj
+        $wmi_instances = Get-CimInstance -Namespace $wmi_namespace -ClassName $wmi_classname
+
+        if ($wmi_instances)
+        {
+            $wmi_instance = $wmi_instances[0] # for 'Get' we return just first matching instance; for 'export' we return all instances
+            $result = @{}
+            $wmi_instance.psobject.properties | %{ 
+                if (($_.Name -ne "type") -and (-not $_.Name.StartsWith("Cim")))
+                {
+                    $result[$_.Name] = $_.Value
+                }
+            }
+        }
+        else
+        {
+            $errmsg = "Can not find type " + $inputobj_pscustomobj.type + "; please ensure that Get-CimInstance returns this resource type"
+            Write-Error $errmsg
+            exit 1
+        }
+    }
+
+    $result | ConvertTo-Json -Compress
+}
+else
+{
+    Write-Error "ERROR: Unsupported operation requested from wmigroup.resource.ps1"
+}