core/api/azure/resourcemanagement/helpers/subscription/Get-MonkeyAzSubscriptionPolicyAssignment.ps1

# Monkey365 - the PowerShell Cloud Security Tool for Azure and Microsoft 365 (copyright 2022) by Juan Garrido
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

Function Get-MonkeyAzSubscriptionPolicyAssignment {
    <#
        .SYNOPSIS
        Get subscription policy from Azure
 
        .DESCRIPTION
        Get subscription policy from Azure
 
        .INPUTS
 
        .OUTPUTS
 
        .EXAMPLE
 
        .NOTES
            Author : Juan Garrido
            Twitter : @tr1ana
            File Name : Get-MonkeyAzSubscriptionPolicyAssignment
            Version : 1.0
 
        .LINK
            https://github.com/silverhack/monkey365
    #>

    [CmdletBinding(DefaultParameterSetName = 'All')]
    Param (
        [parameter(Mandatory=$false, ParameterSetName = 'PolicyDefinitionId', ValueFromPipeline = $True)]
        [String]$PolicyDefinitionId,

        [parameter(Mandatory=$false, ParameterSetName = 'PolicySetDefinitionId', ValueFromPipeline = $True)]
        [String]$PolicySetDefinitionId
    )
    Begin{
        #Get resource management Auth
        $rmAuth = $O365Object.auth_tokens.ResourceManager
        #Get API version
        $apiDetails = $O365Object.internal_config.resourceManager | Where-Object {$_.Name -eq 'azureAuthorization'} | Select-Object -ExpandProperty resource -ErrorAction Ignore
        if($null -eq $apiDetails){
            $msg = @{
                MessageData = ($message.MonkeyInternalConfigError);
                callStack = (Get-PSCallStack | Select-Object -First 1);
                logLevel = 'verbose';
                InformationAction = $O365Object.InformationAction;
                Tags = @('Monkey365ConfigError');
            }
            Write-Verbose @msg
            break
        }
        #set var
        $policy = $null
    }
    Process{
        if($PSCmdlet.ParameterSetName -eq 'PolicyDefinitionId'){
            $msg = @{
                MessageData = ($message.AzureSbsPolicyAssignment -f $PolicyDefinitionId);
                callStack = (Get-PSCallStack | Select-Object -First 1);
                logLevel = 'info';
                InformationAction = $O365Object.InformationAction;
                Tags = @('AzureSubscriptionInfo');
            }
            Write-Information @msg
            $filter = ("policyDefinitionId eq '/providers/Microsoft.Authorization/policyDefinitions/{0}'" -f $PolicyDefinitionId)
            #Set params
            $p = @{
                Authentication = $rmAuth;
                Environment = $O365Object.Environment;
                Provider = $apiDetails.provider;
                ObjectType = "policyAssignments";
                Filter = $filter;
                APIVersion= '2019-09-01';
                InformationAction = $O365Object.InformationAction;
                Verbose = $O365Object.verbose;
                Debug = $O365Object.debug;
            }
            $policy = Get-MonkeyRMObject @p
            #return policy
            return $policy
        }
        elseif($PSCmdlet.ParameterSetName -eq 'PolicySetDefinitionId'){
            $msg = @{
                MessageData = ($message.AzureSbsPolicyAssignment -f $PolicySetDefinitionId);
                callStack = (Get-PSCallStack | Select-Object -First 1);
                logLevel = 'info';
                InformationAction = $O365Object.InformationAction;
                Tags = @('AzureSubscriptionInfo');
            }
            Write-Information @msg
            $filter = ("policyDefinitionId eq '/providers/Microsoft.Authorization/policySetDefinitions/{0}'" -f $PolicyDefinitionId)
            #Set params
            $p = @{
                Authentication = $rmAuth;
                Environment = $O365Object.Environment;
                Provider = $apiDetails.provider;
                ObjectType = "policyAssignments";
                Filter = $filter;
                APIVersion= '2019-09-01';
                InformationAction = $O365Object.InformationAction;
                Verbose = $O365Object.verbose;
                Debug = $O365Object.debug;
            }
            $policy = Get-MonkeyRMObject @p
            #return policy
            return $policy
        }
        else{
            $msg = @{
                MessageData = $message.AzureSbsPolicyAssignmentAll;
                callStack = (Get-PSCallStack | Select-Object -First 1);
                logLevel = 'info';
                InformationAction = $O365Object.InformationAction;
                Tags = @('AzureSubscriptionInfo');
            }
            Write-Information @msg
            #Set params
            $p = @{
                Authentication = $rmAuth;
                Environment = $O365Object.Environment;
                Provider = $apiDetails.provider;
                ObjectType = "policyAssignments";
                APIVersion= '2019-09-01';
                InformationAction = $O365Object.InformationAction;
                Verbose = $O365Object.verbose;
                Debug = $O365Object.debug;
            }
            $policy = Get-MonkeyRMObject @p
            #return policy
            return $policy
        }
    }
    End{
        #nothing to do here
    }
}