Framework/Core/SVT/ADO/ADO.Release.ps1

Set-StrictMode -Version Latest 
class Release: ADOSVTBase
{   

    hidden [PSObject] $ReleaseObj;
    hidden [string] $ProjectId;
    hidden static [string] $securityNamespaceId = $null;
    hidden static [PSObject] $ReleaseVarNames = @{};
    hidden [PSObject] $releaseActivityDetail = @{isReleaseActive = $true; latestReleaseTriggerDate = $null; releaseCreationDate = $null; message = $null; isComputed = $false};
    
    Release([string] $organizationName, [SVTResource] $svtResource): Base($organizationName,$svtResource) 
    {
        [system.gc]::Collect();
        # Get release object
        $releaseId =  ($this.ResourceContext.ResourceId -split "release/")[-1]
        $this.ProjectId = ($this.ResourceContext.ResourceId -split "project/")[-1].Split('/')[0]
        $apiURL = "https://vsrm.dev.azure.com/$($this.OrganizationContext.OrganizationName)/$($this.ProjectId)/_apis/Release/definitions/$($releaseId)?api-version=6.0"
        $this.ReleaseObj = [WebRequestHelper]::InvokeGetWebRequest($apiURL);
        # Get security namespace identifier of current release pipeline.
        if ([string]::IsNullOrEmpty([Release]::SecurityNamespaceId)) {
            $apiURL = "https://dev.azure.com/{0}/_apis/securitynamespaces?api-version=6.0" -f $($this.OrganizationContext.OrganizationName)
            $securityNamespacesObj = [WebRequestHelper]::InvokeGetWebRequest($apiURL);
            [Release]::SecurityNamespaceId = ($securityNamespacesObj | Where-Object { ($_.Name -eq "ReleaseManagement") -and ($_.actions.name -contains "ViewReleaseDefinition")}).namespaceId
    
            $securityNamespacesObj = $null;
        }

        # if release activity check function is not computed, then first compute the function to get the correct status of release.
        if($this.releaseActivityDetail.isComputed -eq $false)
        {
            $this.CheckActiveReleases()
        }

        # overiding the '$this.isResourceActive' global variable based on the current status of release.
        if ($this.releaseActivityDetail.isReleaseActive)
        {
            $this.isResourceActive = $true
        }
        else
        {
            $this.isResourceActive = $false
        }

        # calculating the inactivity period in days for the release. If there is no release history, then setting it with negative value.
        # This will ensure inactive period is always computed irrespective of whether inactive control is scanned or not.
        if ($null -ne $this.releaseActivityDetail.latestReleaseTriggerDate)
        {
            $this.InactiveFromDays = ((Get-Date) - $this.releaseActivityDetail.latestReleaseTriggerDate).Days
        }
    }

    hidden [ControlResult] CheckCredInReleaseVariables([ControlResult] $controlResult)
    {
        if([Helpers]::CheckMember([ConfigurationManager]::GetAzSKSettings(),"SecretsScanToolFolder"))
        {
            $ToolFolderPath =  [ConfigurationManager]::GetAzSKSettings().SecretsScanToolFolder
            $SecretsScanToolName = [ConfigurationManager]::GetAzSKSettings().SecretsScanToolName
            if((-not [string]::IsNullOrEmpty($ToolFolderPath)) -and (Test-Path $ToolFolderPath) -and (-not [string]::IsNullOrEmpty($SecretsScanToolName)))
            {
                $ToolPath = Get-ChildItem -Path $ToolFolderPath -File -Filter $SecretsScanToolName -Recurse 
                if($ToolPath)
                { 
                    if($this.ReleaseObj)
                    {
                        try
                        {
                            $releaseDefFileName = $($this.ResourceContext.ResourceName).Replace(" ","")
                            $releaseDefPath = [Constants]::AzSKTempFolderPath + "\Releases\"+ $releaseDefFileName + "\";
                            if(-not (Test-Path -Path $releaseDefPath))
                            {
                                New-Item -ItemType Directory -Path $releaseDefPath -Force | Out-Null
                            }

                            $this.ReleaseObj | ConvertTo-Json -Depth 5 | Out-File "$releaseDefPath\$releaseDefFileName.json"
                            $searcherPath = Get-ChildItem -Path $($ToolPath.Directory.FullName) -Include "buildsearchers.xml" -Recurse
                            ."$($Toolpath.FullName)" -I $releaseDefPath -S "$($searcherPath.FullName)" -f csv -Ve 1 -O "$releaseDefPath\Scan"    
                            
                            $scanResultPath = Get-ChildItem -Path $releaseDefPath -File -Include "*.csv"
                            
                            if($scanResultPath -and (Test-Path $scanResultPath.FullName))
                            {
                                $credList = Get-Content -Path $scanResultPath.FullName | ConvertFrom-Csv 
                                if(($credList | Measure-Object).Count -gt 0)
                                {
                                    $controlResult.AddMessage("No. of credentials found:" + ($credList | Measure-Object).Count )
                                    $controlResult.AddMessage([VerificationResult]::Failed,"Found credentials in variables")
                                    $controlResult.AdditionalInfo += "No. of credentials found: " + ($credList | Measure-Object).Count;
                                }
                                else {
                                    $controlResult.AddMessage([VerificationResult]::Passed,"No credentials found in variables")
                                }
                            }
                        }
                        catch {
                            #Publish Exception
                            $this.PublishException($_);
                        }
                        finally
                        {
                            #Clean temp folders
                            Remove-ITem -Path $releaseDefPath -Recurse
                        }
                    }
                }
            }

        }
       else
       {
            try {    
                $patterns = $this.ControlSettings.Patterns | where {$_.RegexCode -eq "SecretsInRelease"} | Select-Object -Property RegexList;
                $exclusions = $this.ControlSettings.Release.ExcludeFromSecretsCheck;
                $varList = @();
                $varGrpList = @();
                $noOfCredFound = 0;  
                $restrictedVarGrp = $false;  

                if(($patterns | Measure-Object).Count -gt 0)
                {     
                    if([Helpers]::CheckMember($this.ReleaseObj,"variables")) 
                    {
                        Get-Member -InputObject $this.ReleaseObj.variables -MemberType Properties | ForEach-Object {
                            if([Helpers]::CheckMember($this.ReleaseObj.variables.$($_.Name),"value") -and  (-not [Helpers]::CheckMember($this.ReleaseObj.variables.$($_.Name),"isSecret")))
                            {
                                $releaseVarName = $_.Name
                                $releaseVarValue = $this.ReleaseObj[0].variables.$releaseVarName.value 
                                <# code to collect stats for var names
                                    if ([Release]::ReleaseVarNames.Keys -contains $releaseVarName)
                                    {
                                            [Release]::ReleaseVarNames.$releaseVarName++
                                    }
                                    else
                                    {
                                        [Release]::ReleaseVarNames.$releaseVarName = 1
                                    }
                                #>

                                if ($exclusions -notcontains $releaseVarName)
                                {
                                    for ($i = 0; $i -lt $patterns.RegexList.Count; $i++) {
                                        #Note: We are using '-cmatch' here.
                                        #When we compile the regex, we don't specify ignoreCase flag.
                                        #If regex is in text form, the match will be case-sensitive.
                                        if ($releaseVarValue -cmatch $patterns.RegexList[$i]) { 
                                            $noOfCredFound +=1
                                            $varList += "$releaseVarName";   
                                            break;  
                                        }
                                    }
                                }
                            } 
                        }
                    }

                    if([Helpers]::CheckMember($this.ReleaseObj[0],"variableGroups") -and (($this.ReleaseObj[0].variableGroups) | Measure-Object).Count -gt 0) 
                    {
                        $varGrps = @();
                        $varGrps += $this.ReleaseObj[0].variableGroups
                        $envCount = ($this.ReleaseObj[0].environments).Count

                        if ($envCount -gt 0) 
                        {
                            # Each release pipeline has atleast 1 env.
                            for($i=0; $i -lt $envCount; $i++)
                            {
                                if((($this.ReleaseObj[0].environments[$i].variableGroups) | Measure-Object).Count -gt 0)
                                {
                                    $varGrps += $this.ReleaseObj[0].environments[$i].variableGroups
                                }
                            }

                            $varGrpObj = @();
                            $varGrps | ForEach-Object {
                                try
                                {
                                    $varGrpURL = ("https://dev.azure.com/{0}/{1}/_apis/distributedtask/variablegroups/{2}?api-version=6.1-preview.2") -f $($this.OrganizationContext.OrganizationName), $this.ProjectId, $_;
                                    $varGrpObj += [WebRequestHelper]::InvokeGetWebRequest($varGrpURL);
                                }
                                catch
                                {
                                    #eat exception if api failure occurs
                                }
                            }

                            $varGrpObj| ForEach-Object {
                            $varGrp = $_
                            if([Helpers]::CheckMember($_ ,"variables")){
                                Get-Member -InputObject $_.variables -MemberType Properties | ForEach-Object {

                                    if([Helpers]::CheckMember($varGrp.variables.$($_.Name) ,"value") -and  (-not [Helpers]::CheckMember($varGrp.variables.$($_.Name) ,"isSecret")))
                                    {
                                        $varName = $_.Name
                                        $varValue = $varGrp.variables.$($_.Name).value 
                                        if ($exclusions -notcontains $varName)
                                        {
                                            for ($i = 0; $i -lt $patterns.RegexList.Count; $i++) {
                                                #Note: We are using '-cmatch' here.
                                                #When we compile the regex, we don't specify ignoreCase flag.
                                                #If regex is in text form, the match will be case-sensitive.
                                                if ($varValue -cmatch $patterns.RegexList[$i]) { 
                                                    $noOfCredFound +=1
                                                    $varGrpList += "[$($varGrp.Name)]:$varName";   
                                                    break  
                                                    }
                                                }
                                            }
                                        }
                                    }
                                }
                                else{
                                    $restrictedVarGrp = $true;  
                                }
                            }
                        }
                    }
                    if($restrictedVarGrp -eq $true)
                    {
                        $controlResult.AddMessage([VerificationResult]::Manual, "Could not evaluate release definition as one or more variable group has restricted access.");
                    }
                    elseif($noOfCredFound -eq 0) 
                    {
                        $controlResult.AddMessage([VerificationResult]::Passed, "No secrets found in release definition.");
                    }
                    else {
                        $controlResult.AddMessage([VerificationResult]::Failed, "Found secrets in release definition.");
                        $stateData = @{
                            VariableList = @();
                            VariableGroupList = @();
                        };
                        if(($varList | Measure-Object).Count -gt 0 )
                        {
                            $varList = $varList | select -Unique | Sort-object
                            $stateData.VariableList += $varList
                            $controlResult.AddMessage("`nTotal number of variable(s) containing secret: ", ($varList | Measure-Object).Count);
                            $controlResult.AddMessage("`nList of variable(s) containing secret: ", $varList);
                            $controlResult.AdditionalInfo += "Total number of variable(s) containing secret: " + ($varList | Measure-Object).Count;
                        }
                        if(($varGrpList | Measure-Object).Count -gt 0 )
                        {
                            $varGrpList = $varGrpList | select -Unique | Sort-object
                            $stateData.VariableGroupList += $varGrpList
                            $controlResult.AddMessage("`nTotal number of variable(s) containing secret in variable group(s): ", ($varGrpList | Measure-Object).Count);
                            $controlResult.AddMessage("`nList of variable(s) containing secret in variable group(s): ", $varGrpList);
                            $controlResult.AdditionalInfo += "Total number of variable(s) containing secret in variable group(s): " + ($varGrpList | Measure-Object).Count;
                        }
                        $controlResult.SetStateData("List of variable and variable group containing secret: ", $stateData );
                    }
                    $patterns = $null;
                }
                else 
                {
                    $controlResult.AddMessage([VerificationResult]::Manual, "Regular expressions for detecting credentials in pipeline variables are not defined in your organization.");    
                }
            }
            catch {
                $controlResult.AddMessage([VerificationResult]::Manual, "Could not evaluate release definition.");
                $controlResult.AddMessage($_);
            }    

         }
     
        return $controlResult;
    }

    hidden [ControlResult] CheckForInactiveReleases([ControlResult] $controlResult)
    {        
        try
        {
            if ($this.releaseActivityDetail.message -eq 'Could not fetch release details.')
            {
                $controlResult.AddMessage([VerificationResult]::Error, $this.releaseActivityDetail.message);
            }
            elseif ($this.releaseActivityDetail.isReleaseActive)
            {
                $controlResult.AddMessage([VerificationResult]::Passed, $this.releaseActivityDetail.message);
            }
            else
            {
                if ($null -ne $this.releaseActivityDetail.releaseCreationDate)
                {
                    $inactiveLimit = $this.ControlSettings.Release.ReleaseHistoryPeriodInDays
                    if ((((Get-Date) - $this.releaseActivityDetail.releaseCreationDate).Days) -lt $inactiveLimit)
                    {
                        $controlResult.AddMessage([VerificationResult]::Passed, "Release was created within last $inactiveLimit days but never triggered.");
                    }
                    else 
                    {
                        $controlResult.AddMessage([VerificationResult]::Failed, $this.releaseActivityDetail.message);
                    }
                    $controlResult.AddMessage("The release pipeline was created on: $($this.releaseActivityDetail.releaseCreationDate)");
                    $controlResult.AdditionalInfo += "The release pipeline was created on: " + $this.releaseActivityDetail.releaseCreationDate;
                }
                else 
                {
                    $controlResult.AddMessage([VerificationResult]::Failed, $this.releaseActivityDetail.message);
                }
            }

            if ($null -ne $this.releaseActivityDetail.latestReleaseTriggerDate)
            {
                $controlResult.AddMessage("Last release date of pipeline: $($this.releaseActivityDetail.latestReleaseTriggerDate)");
                $controlResult.AdditionalInfo += "Last release date of pipeline: " + $this.releaseActivityDetail.latestReleaseTriggerDate;
                $releaseInactivePeriod = ((Get-Date) - $this.releaseActivityDetail.latestReleaseTriggerDate).Days
                $controlResult.AddMessage("The release was inactive from last $($releaseInactivePeriod) days.");
            }
        }
        catch
        {
            $controlResult.AddMessage([VerificationResult]::Error, "Could not fetch release details.");
        }

        # below code provide the details of build artifacts associated with release pipeline
        if ($this.ReleaseObj)
        {
            if([Helpers]::CheckMember($this.ReleaseObj[0], "artifacts.definitionReference.definition"))
            {
                #$associatedBuildArtifacts = $this.ReleaseObj[0].artifacts | where-object {$_.type -eq "Build"}
                $allArtifacts = $this.ReleaseObj[0].artifacts | Select-Object @{Label="Type"; Expression={$_.type}},  @{Label="Id"; Expression={$_.definitionReference.definition.id}}, @{Label="Name"; Expression={$_.definitionReference.definition.name}}
                $buildArtifacts = $allArtifacts | where-object {$_.Type -eq "Build"}
                $otherArtifacts = $allArtifacts | where-object {$_.Type -ne "Build"}
                if(($null -ne $buildArtifacts) -and ($buildArtifacts | Measure-Object).Count -gt 0)
                {
                    $controlResult.AddMessage("Build artifacts associated with release pipeline: ", $buildArtifacts);
                    $controlResult.AdditionalInfo += "Build artifacts associated with release pipeline: " + [JsonHelper]::ConvertToJsonCustomCompressed($buildArtifacts);
                }
                if(($null -ne $otherArtifacts) -and ($otherArtifacts | Measure-Object).Count -gt 0)
                {
                    $controlResult.AddMessage("Other artifacts associated with release pipeline: ", $otherArtifacts);
                    $controlResult.AdditionalInfo += "Other artifacts associated with release pipeline: " + [JsonHelper]::ConvertToJsonCustomCompressed($otherArtifacts);
                }
            }
        }

        return $controlResult
    }

    hidden [ControlResult] CheckInheritedPermissions([ControlResult] $controlResult)
    {
        # Here 'permissionSet' = security namespace identifier, 'token' = project id
        $apiURL = "https://dev.azure.com/{0}/{1}/_admin/_security/index?useApiUrl=true&permissionSet={2}&token={3}%2F{4}&style=min" -f $($this.OrganizationContext.OrganizationName), $($this.ProjectId), $([Release]::SecurityNamespaceId), $($this.ProjectId), $($this.ReleaseObj.id);
        $header = [WebRequestHelper]::GetAuthHeaderFromUri($apiURL);
        $responseObj = Invoke-RestMethod -Method Get -Uri $apiURL -Headers $header -UseBasicParsing
        $responseObj = ($responseObj.SelectNodes("//script") | Where-Object { $_.class -eq "permissions-context" }).InnerXML | ConvertFrom-Json; 
        if($responseObj.inheritPermissions -eq $true)
        {
            $controlResult.AddMessage([VerificationResult]::Failed,"Inherited permissions are enabled on release pipeline.");
        }
        else 
        {
            $controlResult.AddMessage([VerificationResult]::Passed,"Inherited permissions are disabled on release pipeline.");
        }
        $header = $null;
        $responseObj = $null;
        return $controlResult
    }

    hidden [ControlResult] CheckPreDeploymentApproval ([ControlResult] $controlResult)
    {
        $releaseStages = $this.ReleaseObj.environments;# | Where-Object { $this.ControlSettings.Release.RequirePreDeployApprovals -contains $_.name.Trim()}
        if($releaseStages)
        {
            $nonComplaintStages = $releaseStages | ForEach-Object { 
                $releaseStage = $_
                if([Helpers]::CheckMember($releaseStage,"preDeployApprovals.approvals.isAutomated") -and $releaseStage.preDeployApprovals.approvals.isAutomated -eq $true) 
                {
                    return $($releaseStage | Select-Object id,name, @{Name = "Owner"; Expression = {$_.owner.displayName}}) 
                }
            }

            if(($nonComplaintStages | Measure-Object).Count -gt 0)
            {
                $controlResult.AddMessage([VerificationResult]::Failed,"Pre-deployment approvals is not enabled for following release stages in [$($this.ReleaseObj.name)] pipeline.", $nonComplaintStages);
            }
            else 
            {
                $complaintStages = $releaseStages | ForEach-Object {
                    $releaseStage = $_
                    return  $($releaseStage | Select-Object id,name, @{Name = "Owner"; Expression = {$_.owner.displayName}})
                }
                $controlResult.AddMessage([VerificationResult]::Passed,"Pre-deployment approvals is enabled for following release stages.", $complaintStages);
                $complaintStages = $null;
            }
            $nonComplaintStages =$null;
        }
        else
        {
            $otherStages = $this.ReleaseObj.environments | ForEach-Object {
                $releaseStage = $_
                if([Helpers]::CheckMember($releaseStage,"preDeployApprovals.approvals.isAutomated") -and $releaseStage.preDeployApprovals.approvals.isAutomated -ne $true) 
                {
                    return $($releaseStage | Select-Object id,name, @{Name = "Owner"; Expression = {$_.owner.displayName}}) 
                }
            }
            
            if ($otherStages) {
                $controlResult.AddMessage([VerificationResult]::Verify,"No release stage found matching to $($this.ControlSettings.Release.RequirePreDeployApprovals -join ", ") in [$($this.ReleaseObj.name)] pipeline. Verify that pre-deployment approval is enabled for below found environments.");
                $controlResult.AddMessage($otherStages)
            }
            else {
                $controlResult.AddMessage([VerificationResult]::Passed,"No release stage found matching to $($this.ControlSettings.Release.RequirePreDeployApprovals -join ", ") in [$($this.ReleaseObj.name)] pipeline. Found pre-deployment approval is enabled for present environments.");
            }
            $otherStages =$null;
        }
        $releaseStages = $null;
        return $controlResult
    }

    hidden [ControlResult] CheckPreDeploymentApprovers ([ControlResult] $controlResult)
    {
        $releaseStages = $this.ReleaseObj.environments | Where-Object { $this.ControlSettings.Release.RequirePreDeployApprovals -contains $_.name.Trim()}
        if($releaseStages)
        {
            $approversList = $releaseStages | ForEach-Object { 
                $releaseStage = $_
                if([Helpers]::CheckMember($releaseStage,"preDeployApprovals.approvals.isAutomated") -and $($releaseStage.preDeployApprovals.approvals.isAutomated -eq $false))
                {
                    if([Helpers]::CheckMember($releaseStage,"preDeployApprovals.approvals.approver"))
                    {
                        return @{ ReleaseStageName= $releaseStage.Name; Approvers = $releaseStage.preDeployApprovals.approvals.approver }
                    }
                }
            }
            if(($approversList | Measure-Object).Count -eq 0)
            {
                $controlResult.AddMessage([VerificationResult]::Failed,"No approvers found. Please ensure that pre-deployment approval is enabled for production release stages");
            }
            else
            {
                $stateData = @();
                $stateData += $approversList;
                $controlResult.AddMessage([VerificationResult]::Verify,"Validate users/groups added as approver within release pipeline.",$stateData);
                $controlResult.SetStateData("List of approvers for each release stage: ", $stateData);
            }
            $approversList = $null;
        }
        else
        {
            $controlResult.AddMessage([VerificationResult]::Passed,"No release stage found matching to $($this.ControlSettings.Release.RequirePreDeployApprovals -join ", ") in [$($this.ReleaseObj.name)] pipeline.");
        }
        $releaseStages = $null;
        return $controlResult
    }

    hidden [ControlResult] CheckRBACAccess ([ControlResult] $controlResult)
    {
        $failMsg = $null
        try
        {
            # This functions is to check users permissions on release definition. Groups' permissions check is not added here.
            $releaseDefinitionPath = $this.ReleaseObj.Path.Trim("\").Replace(" ","+").Replace("\","%2F")
            $apiURL = "https://dev.azure.com/{0}/{1}/_api/_security/ReadExplicitIdentitiesJson?__v=5&permissionSetId={2}&permissionSetToken={3}%2F{4}%2F{5}" -f $($this.OrganizationContext.OrganizationName), $($this.ProjectId), $([Release]::SecurityNamespaceId), $($this.ProjectId), $($releaseDefinitionPath) ,$($this.ReleaseObj.id);

            $sw = [System.Diagnostics.Stopwatch]::StartNew();
            $responseObj = [WebRequestHelper]::InvokeGetWebRequest($apiURL);
            $sw.Stop()

            $accessList = @()
            $exemptedUserIdentities = @()

            #Below code added to send perf telemtry
            if ($this.IsAIEnabled)
            {
                $properties =  @{ 
                    TimeTakenInMs = $sw.ElapsedMilliseconds;
                    ApiUrl = $apiURL; 
                    Resourcename = $this.ResourceContext.ResourceName;
                    ResourceType = $this.ResourceContext.ResourceType;
                    PartialScanIdentifier = $this.PartialScanIdentifier;
                    CalledBy = "CheckRBACAccess";
                }
                [AIOrgTelemetryHelper]::PublishEvent( "Api Call Trace",$properties, @{})
            }

            # Fetch detailed permissions of each of group/user from above api call
            # To be evaluated only when -DetailedScan flag is used in GADS command along with control ids or when controls are to be attested
            if([AzSKRoot]::IsDetailedScanRequired -eq $true)
            {
                # exclude release owner
                $exemptedUserIdentities += $this.ReleaseObj.createdBy.id
                if([Helpers]::CheckMember($responseObj,"identities") -and ($responseObj.identities|Measure-Object).Count -gt 0)
                {
                    $exemptedUserIdentities += $responseObj.identities | Where-Object { $_.IdentityType -eq "user" }| ForEach-Object {
                        $identity = $_
                        $exemptedIdentity = $this.ControlSettings.Release.ExemptedUserIdentities | Where-Object { $_.Domain -eq $identity.Domain -and $_.DisplayName -eq $identity.DisplayName }
                        if(($exemptedIdentity | Measure-Object).Count -gt 0)
                        {
                            return $identity.TeamFoundationId
                        }
                    }

                    $accessList += $responseObj.identities | Where-Object { $_.IdentityType -eq "user" } | ForEach-Object {
                        $identity = $_ 
                        if($exemptedUserIdentities -notcontains $identity.TeamFoundationId)
                        {
                            $apiURL = "https://dev.azure.com/{0}/{1}/_api/_security/DisplayPermissions?__v=5&tfid={2}&permissionSetId={3}&permissionSetToken={4}%2F{5}%2F{6}" -f $($this.OrganizationContext.OrganizationName), $($this.ProjectId), $($identity.TeamFoundationId) ,$([Release]::SecurityNamespaceId), $($this.ProjectId), $($releaseDefinitionPath), $($this.ReleaseObj.id);
                            $identityPermissions = [WebRequestHelper]::InvokeGetWebRequest($apiURL);
                            $configuredPermissions = $identityPermissions.Permissions | Where-Object {$_.permissionDisplayString -ne 'Not set'}
                            return @{ IdentityName = $identity.DisplayName; IdentityType = $identity.IdentityType; Permissions = ($configuredPermissions | Select-Object @{Name="Name"; Expression = {$_.displayName}},@{Name="Permission"; Expression = {$_.permissionDisplayString}}) }
                        }
                    }

                    $accessList += $responseObj.identities | Where-Object { $_.IdentityType -eq "group" } | ForEach-Object {
                        $identity = $_ 
                        $apiURL = "https://dev.azure.com/{0}/{1}/_api/_security/DisplayPermissions?__v=5&tfid={2}&permissionSetId={3}&permissionSetToken={4}%2F{5}%2F{6}" -f $($this.OrganizationContext.OrganizationName), $($this.ProjectId), $($identity.TeamFoundationId) ,$([Release]::SecurityNamespaceId), $($this.ProjectId), $($releaseDefinitionPath), $($this.ReleaseObj.id);
                        $identityPermissions = [WebRequestHelper]::InvokeGetWebRequest($apiURL);
                        $configuredPermissions = $identityPermissions.Permissions | Where-Object {$_.permissionDisplayString -ne 'Not set'}
                        return @{ IdentityName = $identity.DisplayName; IdentityType = $identity.IdentityType; IsAadGroup = $identity.IsAadGroup ;Permissions = ($configuredPermissions | Select-Object @{Name="Name"; Expression = {$_.displayName}},@{Name="Permission"; Expression = {$_.permissionDisplayString}}) }
                    }
                }
                
                if(($accessList | Measure-Object).Count -ne 0)
                {
                    $accessList= $accessList | Select-Object -Property @{Name="IdentityName"; Expression = {$_.IdentityName}},@{Name="IdentityType"; Expression = {$_.IdentityType}},@{Name="Permissions"; Expression = {$_.Permissions}}
                    $controlResult.AddMessage("Total number of identities that have access to release pipeline: ", ($accessList | Measure-Object).Count);
                    $controlResult.AddMessage([VerificationResult]::Verify,"Validate that the following identities have been provided with minimum RBAC access to [$($this.ResourceContext.ResourceName)] pipeline", $accessList);
                    $controlResult.SetStateData("Release pipeline access list: ", ($responseObj.identities | Select-Object -Property @{Name="IdentityName"; Expression = {$_.FriendlyDisplayName}},@{Name="IdentityType"; Expression = {$_.IdentityType}},@{Name="Scope"; Expression = {$_.Scope}}));
                    $controlResult.AdditionalInfo += "Total number of identities that have access to release pipeline: " + ($accessList | Measure-Object).Count;
                    $controlResult.AdditionalInfo += "Total number of user identities that have access to release pipeline: " + (($accessList | Where-Object {$_.IdentityType -eq 'user'}) | Measure-Object).Count;
                    $controlResult.AdditionalInfo += "Total number of group identities that have access to release pipeline: " + (($accessList | Where-Object {$_.IdentityType -eq 'group'}) | Measure-Object).Count;
                }
                else
                {
                    $controlResult.AddMessage([VerificationResult]::Passed,"No identities have been explicitly provided with RBAC access to [$($this.ResourceContext.ResourceName)] pipeline other than release pipeline owner and default groups");
                    $controlResult.AddMessage("Total number of exempted user identities:",($exemptedUserIdentities | Measure-Object).Count);
                    $controlResult.AddMessage("List of exempted user identities:",$exemptedUserIdentities)
                    $controlResult.AdditionalInfo += "Total number of exempted user identities: " + ($exemptedUserIdentities | Measure-Object).Count;
                }
            }
            else{
                # Non detailed scan results
                if(($responseObj.identities|Measure-Object).Count -gt 0)
                {
                    $accessList= $responseObj.identities | Select-Object -Property @{Name="IdentityName"; Expression = {$_.FriendlyDisplayName}},@{Name="IdentityType"; Expression = {$_.IdentityType}},@{Name="Scope"; Expression = {$_.Scope}}
                    $controlResult.AddMessage("Total number of identities that have access to release pipeline: ", ($accessList | Measure-Object).Count);
                    $controlResult.AddMessage([VerificationResult]::Verify,"Validate that the following identities have been provided with minimum RBAC access to [$($this.ResourceContext.ResourceName)] pipeline.", $accessList);
                    $controlResult.SetStateData("Release pipeline access list: ", $accessList);
                    $controlResult.AdditionalInfo += "Total number of identities that have access to release pipeline: " + ($accessList | Measure-Object).Count;
                    $controlResult.AdditionalInfo += "Total number of user identities that have access to release pipeline: " + (($accessList | Where-Object {$_.IdentityType -eq 'user'}) | Measure-Object).Count;
                    $controlResult.AdditionalInfo += "Total number of group identities that have access to release pipeline: " + (($accessList | Where-Object {$_.IdentityType -eq 'group'}) | Measure-Object).Count;
                }
            }

            $accessList = $null;
            $exemptedUserIdentities =$null;
            $responseObj = $null;
        }
        catch
        {
            $failMsg = $_
        }
        if(![string]::IsNullOrEmpty($failMsg))
        {
            $controlResult.AddMessage([VerificationResult]::Manual,"Unable to fetch release pipeline details. $($failMsg)Please verify from portal all teams/groups are granted minimum required permissions on release definition.");
        }       
        return $controlResult
    }

    hidden [ControlResult] CheckExternalSources([ControlResult] $controlResult)
    {
        if(($this.ReleaseObj | Measure-Object).Count -gt 0)
        {
            if( [Helpers]::CheckMember($this.ReleaseObj[0],"artifacts") -and ($this.ReleaseObj[0].artifacts | Measure-Object).Count -gt 0){
               # $sourcetypes = @();
                $sourcetypes = $this.ReleaseObj[0].artifacts;
                $nonadoresource = $sourcetypes | Where-Object { $_.type -ne 'Git'} ;
               
               if( ($nonadoresource | Measure-Object).Count -gt 0){
                   $nonadoresource = $nonadoresource | Select-Object -Property @{Name="alias"; Expression = {$_.alias}},@{Name="Type"; Expression = {$_.type}}
                   $stateData = @();
                   $stateData += $nonadoresource;
                   $controlResult.AddMessage([VerificationResult]::Verify,"Pipeline contains artifacts from below external sources.", $stateData);    
                   $controlResult.SetStateData("Pipeline contains artifacts from below external sources.", $stateData);  
                   $controlResult.AdditionalInfo += "Pipeline contains artifacts from these external sources: " + [JsonHelper]::ConvertToJsonCustomCompressed($stateData);
               }
               else {
                $controlResult.AddMessage([VerificationResult]::Passed,"Pipeline does not contain artifacts from external sources");   
               }
               $sourcetypes = $null;
               $nonadoresource = $null;
           }
           else {
            $controlResult.AddMessage([VerificationResult]::Passed,"Pipeline does not contain any source repositories");   
           } 
        }

        return $controlResult;
    }

    hidden [ControlResult] CheckSettableAtReleaseTime([ControlResult] $controlResult)
    {
      try { 
        
        if([Helpers]::CheckMember($this.ReleaseObj[0],"variables")) 
        {
           $setablevar =@();
           $nonsetablevar =@();
          
           Get-Member -InputObject $this.ReleaseObj[0].variables -MemberType Properties | ForEach-Object {
            if([Helpers]::CheckMember($this.ReleaseObj[0].variables.$($_.Name),"allowOverride") )
            {
                $setablevar +=  $_.Name;
            }
            else {
                $nonsetablevar +=$_.Name;  
            }
           } 
           if(($setablevar | Measure-Object).Count -gt 0){
                $controlResult.AddMessage("Total number of variables that are settable at release time: ", ($setablevar | Measure-Object).Count);
                $controlResult.AddMessage([VerificationResult]::Verify,"The below variables are settable at release time: ",$setablevar);
                $controlResult.AdditionalInfo += "Total number of variables that are settable at release time: " + ($setablevar | Measure-Object).Count;
                $controlResult.SetStateData("Variables settable at release time: ", $setablevar);
                if ($nonsetablevar) {
                    $controlResult.AddMessage("The below variables are not settable at release time: ",$nonsetablevar);      
                } 
           }
           else 
           {
                $controlResult.AddMessage([VerificationResult]::Passed, "No variables were found in the release pipeline that are settable at release time.");   
           }
                 
        }
        else {
            $controlResult.AddMessage([VerificationResult]::Passed,"No variables were found in the release pipeline");   
        }
       }  
       catch {
           $controlResult.AddMessage([VerificationResult]::Manual,"Could not fetch release pipeline variables.");   
       }
     return $controlResult;
    }

    hidden [ControlResult] CheckSettableAtReleaseTimeForURL([ControlResult] $controlResult) 
    {
        try 
        { 
            if ([Helpers]::CheckMember($this.ReleaseObj[0], "variables")) 
            {
                $settableURLVars = @();
                $count = 0;
                $patterns = $this.ControlSettings.Patterns | where {$_.RegexCode -eq "URLs"} | Select-Object -Property RegexList;

                if(($patterns | Measure-Object).Count -gt 0){                
                    Get-Member -InputObject $this.ReleaseObj[0].variables -MemberType Properties | ForEach-Object {
                        if ([Helpers]::CheckMember($this.ReleaseObj[0].variables.$($_.Name), "allowOverride") )
                        {
                            $varName = $_.Name;
                            $varValue = $this.ReleaseObj[0].variables.$($varName).value;
                            for ($i = 0; $i -lt $patterns.RegexList.Count; $i++) {
                                if ($varValue -match $patterns.RegexList[$i]) { 
                                    $count +=1
                                    $settableURLVars += @( [PSCustomObject] @{ Name = $varName; Value = $varValue } )  
                                    break  
                                }
                            }
                        }
                    } 
                    if ($count -gt 0) 
                    {
                        $controlResult.AddMessage("Total number of variables that are settable at release time and contain URL value: ", ($settableURLVars | Measure-Object).Count);
                        $controlResult.AddMessage([VerificationResult]::Failed, "Found variables that are settable at release time and contain URL value: ", $settableURLVars);
                        $controlResult.AdditionalInfo += "Total number of variables that are settable at release time and contain URL value: " + ($settableURLVars | Measure-Object).Count;
                        $controlResult.SetStateData("List of variables settable at release time and containing URL value: ", $settableURLVars);
                    }
                    else {
                        $controlResult.AddMessage([VerificationResult]::Passed, "No variables were found in the release pipeline that are settable at release time and contain URL value.");   
                    }
                }
                else 
                {
                    $controlResult.AddMessage([VerificationResult]::Manual, "Regular expressions for detecting URLs in pipeline variables are not defined in your organization.");    
                }
            }
            else 
            {
                $controlResult.AddMessage([VerificationResult]::Passed, "No variables were found in the release pipeline.");   
            }
        }  
        catch 
        {
            $controlResult.AddMessage([VerificationResult]::Manual, "Could not fetch variables of the release pipeline.");   
        }
        return $controlResult;
    }
    hidden [ControlResult] CheckTaskGroupEditPermission([ControlResult] $controlResult)
    {
        $taskGroups = @();

        #fetch all envs of pipeline.
        $releaseEnv = $this.ReleaseObj[0].environments

        #filter task groups in each such env.
        $releaseEnv | ForEach-Object {
            #Task groups have type 'metaTask' whereas individual tasks have type 'task'
            $_.deployPhases[0].workflowTasks | ForEach-Object { 
                if(([Helpers]::CheckMember($_ ,"definitiontype")) -and ($_.definitiontype -eq 'metaTask'))
                {
                    $taskGroups += $_
                }              
            }
        } 
        #Filtering unique task groups used in release pipeline.
        $taskGroups = $taskGroups | Sort-Object -Property taskId -Unique

        $editableTaskGroups = @();
        
        if(($taskGroups | Measure-Object).Count -gt 0)
        {   
            $apiURL = "https://dev.azure.com/{0}/_apis/Contribution/HierarchyQuery?api-version=5.0-preview.1" -f $($this.OrganizationContext.OrganizationName)
            $projectName = $this.ResourceContext.ResourceGroupName
            
            try
            {
                $taskGroups | ForEach-Object {
                    $taskGrpId = $_.taskId
                    $taskGrpURL="https://dev.azure.com/{0}/{1}/_taskgroup/{2}" -f $($this.OrganizationContext.OrganizationName), $($projectName), $($taskGrpId)
                    $permissionSetToken = "$($this.projectId)/$taskGrpId"
                    
                    #permissionSetId = 'f6a4de49-dbe2-4704-86dc-f8ec1a294436' is the std. namespaceID. Refer: https://docs.microsoft.com/en-us/azure/devops/organizations/security/manage-tokens-namespaces?view=azure-devops#namespaces-and-their-ids
                    $inputbody = "{
                        'contributionIds': [
                            'ms.vss-admin-web.security-view-members-data-provider'
                        ],
                        'dataProviderContext': {
                            'properties': {
                                'permissionSetId': 'f6a4de49-dbe2-4704-86dc-f8ec1a294436',
                                'permissionSetToken': '$permissionSetToken',
                                'sourcePage': {
                                    'url': '$taskGrpURL',
                                    'routeId':'ms.vss-distributed-task.hub-task-group-edit-route',
                                    'routeValues': {
                                        'project': '$projectName',
                                        'taskGroupId': '$taskGrpId',
                                        'controller':'Apps',
                                        'action':'ContributedHub',
                                        'viewname':'task-groups-edit'
                                    }
                                }
                            }
                        }
                    }"
 | ConvertFrom-Json

                    # This web request is made to fetch all identities having access to task group - it will contain descriptor for each of them.
                    # We need contributor's descriptor to fetch its permissions on task group.
                    $responseObj = [WebRequestHelper]::InvokePostWebRequest($apiURL,$inputbody);

                    #Filtering out Contributors group.
                    if([Helpers]::CheckMember($responseObj[0],"dataProviders") -and ($responseObj[0].dataProviders.'ms.vss-admin-web.security-view-members-data-provider') -and ([Helpers]::CheckMember($responseObj[0].dataProviders.'ms.vss-admin-web.security-view-members-data-provider',"identities")))
                    {

                        $contributorObj = $responseObj[0].dataProviders.'ms.vss-admin-web.security-view-members-data-provider'.identities | Where-Object {$_.subjectKind -eq 'group' -and $_.principalName -eq "[$projectName]\Contributors"}
                        # $contributorObj would be null if none of its permissions are set i.e. all perms are 'Not Set'.
                        if($contributorObj)
                        {
                            $contributorInputbody = "{
                                'contributionIds': [
                                    'ms.vss-admin-web.security-view-permissions-data-provider'
                                ],
                                'dataProviderContext': {
                                    'properties': {
                                        'subjectDescriptor': '$($contributorObj.descriptor)',
                                        'permissionSetId': 'f6a4de49-dbe2-4704-86dc-f8ec1a294436',
                                        'permissionSetToken': '$permissionSetToken',
                                        'accountName': '$(($contributorObj.principalName).Replace('\','\\'))',
                                        'sourcePage': {
                                            'url': '$taskGrpURL',
                                            'routeId':'ms.vss-distributed-task.hub-task-group-edit-route',
                                            'routeValues': {
                                                'project': '$projectName',
                                                'taskGroupId': '$taskGrpId',
                                                'controller':'Apps',
                                                'action':'ContributedHub',
                                                'viewname':'task-groups-edit'
                                            }
                                        }
                                    }
                                }
                            }"
 | ConvertFrom-Json
                        
                            #Web request to fetch RBAC permissions of Contributors group on task group.
                            $contributorResponseObj = [WebRequestHelper]::InvokePostWebRequest($apiURL,$contributorInputbody);
                            $contributorRBACObj = $contributorResponseObj[0].dataProviders.'ms.vss-admin-web.security-view-permissions-data-provider'.subjectPermissions
                            $editPerms = $contributorRBACObj | Where-Object {$_.displayName -eq 'Edit task group'}
                            #effectivePermissionValue equals to 1 implies edit task group perms is set to 'Allow'. Its value is 3 if it is set to Allow (inherited). This param is not available if it is 'Not Set'.
                            if([Helpers]::CheckMember($editPerms,"effectivePermissionValue") -and (($editPerms.effectivePermissionValue -eq 1) -or ($editPerms.effectivePermissionValue -eq 3)))
                            {
                                $editableTaskGroups += $_.name
                            }
                        }
                    }
                }
                if(($editableTaskGroups | Measure-Object).Count -gt 0)
                {
                    $controlResult.AddMessage("Total number of task groups on which contributors have edit permissions in release definition: ", ($editableTaskGroups | Measure-Object).Count);
                    $controlResult.AdditionalInfo += "Total number of task groups on which contributors have edit permissions in release definition: " + ($editableTaskGroups | Measure-Object).Count;
                    $controlResult.AddMessage([VerificationResult]::Failed,"Contributors have edit permissions on the below task groups used in release definition: ", $editableTaskGroups);
                    $controlResult.SetStateData("List of task groups used in release definition that contributors can edit: ", $editableTaskGroups); 
                }
                else 
                {
                    $controlResult.AddMessage([VerificationResult]::Passed,"Contributors do not have edit permissions on any task groups used in release definition.");    
                }
            }
            catch
            {
                $controlResult.AddMessage([VerificationResult]::Error,"Could not fetch the RBAC details of task groups used in the pipeline.");
            }

        }
        else 
        {
            $controlResult.AddMessage([VerificationResult]::Passed,"No task groups found in release definition.");
        }
        return $controlResult;
    }

    hidden [ControlResult] CheckVariableGroupEditPermission([ControlResult] $controlResult)
    {
        
        $varGrps = @();
        $projectName = $this.ResourceContext.ResourceGroupName
        $editableVarGrps = @();

        #add var groups scoped at release scope.
        if((($this.ReleaseObj[0].variableGroups) | Measure-Object).Count -gt 0)
        {
            $varGrps += $this.ReleaseObj[0].variableGroups
        }

        # Each release pipeline has atleast 1 env.
        $envCount = ($this.ReleaseObj[0].environments).Count

        for($i=0; $i -lt $envCount; $i++)
        {
            if((($this.ReleaseObj[0].environments[$i].variableGroups) | Measure-Object).Count -gt 0)
            {
                $varGrps += $this.ReleaseObj[0].environments[$i].variableGroups
            }
        }
        
        if(($varGrps | Measure-Object).Count -gt 0)
        {
            try
            {   
                $varGrps | ForEach-Object{
                    $url = 'https://dev.azure.com/{0}/_apis/securityroles/scopes/distributedtask.variablegroup/roleassignments/resources/{1}%24{2}?api-version=6.1-preview.1' -f $($this.OrganizationContext.OrganizationName), $($this.ProjectId), $($_);
                    $responseObj = [WebRequestHelper]::InvokeGetWebRequest($url);
                    if(($responseObj | Measure-Object).Count -gt 0)
                    {
                        $contributorsObj = $responseObj | Where-Object {$_.identity.uniqueName -eq "[$projectName]\Contributors"}
                        if((-not [string]::IsNullOrEmpty($contributorsObj)) -and ($contributorsObj.role.name -ne 'Reader')){
                            
                            #Release object doesn't capture variable group name. We need to explicitly look up for its name via a separate web request.
                            $varGrpURL = ("https://dev.azure.com/{0}/{1}/_apis/distributedtask/variablegroups/{2}?api-version=6.1-preview.2") -f $($this.OrganizationContext.OrganizationName), $($this.ProjectId), $($_);
                            $varGrpObj = [WebRequestHelper]::InvokeGetWebRequest($varGrpURL);
                            
                            $editableVarGrps += $varGrpObj[0].name
                        } 
                    }
                }

                if(($editableVarGrps | Measure-Object).Count -gt 0)
                {
                    $controlResult.AddMessage("Total number of variable groups on which contributors have edit permissions in release definition: ", ($editableVarGrps | Measure-Object).Count);
                    $controlResult.AdditionalInfo += "Total number of variable groups on which contributors have edit permissions in release definition: " + ($editableVarGrps | Measure-Object).Count;
                    $controlResult.AddMessage([VerificationResult]::Failed,"Contributors have edit permissions on the below variable groups used in release definition: ", $editableVarGrps);
                    $controlResult.SetStateData("List of variable groups used in release definition that contributors can edit: ", $editableVarGrps); 
                }
                else 
                {
                    $controlResult.AddMessage([VerificationResult]::Passed,"Contributors do not have edit permissions on any variable groups used in release definition.");    
                }
            }
            catch
            {
                $controlResult.AddMessage([VerificationResult]::Error,"Could not fetch the RBAC details of variable groups used in the pipeline.");
            }
             
        }
        else 
        {
            $controlResult.AddMessage([VerificationResult]::Passed,"No variable groups found in release definition.");
        }

        return $controlResult
    }
    hidden [ControlResult] CheckPipelineEditPermission([ControlResult] $controlResult)
    {

        $orgName = $($this.OrganizationContext.OrganizationName)
        $projectName = $this.ResourceContext.ResourceGroupName
        $releaseId = $this.ReleaseObj.id
        $permissionSetToken = "$($this.projectId)/$releaseId"
        $releaseURL = "https://dev.azure.com/$orgName/$projectName/_release?_a=releases&view=mine&definitionId=$releaseId"
        
        $apiURL = "https://dev.azure.com/{0}/_apis/Contribution/HierarchyQuery/project/{1}?api-version=5.0-preview.1" -f $orgName, $($this.projectId)
        $inputbody = "{
            'contributionIds': [
                'ms.vss-admin-web.security-view-members-data-provider'
            ],
            'dataProviderContext': {
                'properties': {
                    'permissionSetId': '$([Release]::SecurityNamespaceId)',
                    'permissionSetToken': '$permissionSetToken',
                    'sourcePage': {
                        'url': '$releaseURL',
                        'routeId': 'ms.vss-releaseManagement-web.hub-explorer-3-default-route',
                        'routeValues': {
                            'project': '$projectName',
                            'viewname': 'details',
                            'controller': 'ContributedPage',
                            'action': 'Execute'
                        }
                    }
                }
            }
        }"
 | ConvertFrom-Json

        try
        {
            $responseObj = [WebRequestHelper]::InvokePostWebRequest($apiURL,$inputbody);
            if([Helpers]::CheckMember($responseObj[0],"dataProviders") -and ($responseObj[0].dataProviders.'ms.vss-admin-web.security-view-members-data-provider') -and ([Helpers]::CheckMember($responseObj[0].dataProviders.'ms.vss-admin-web.security-view-members-data-provider',"identities")))
            {
    
                $contributorObj = $responseObj[0].dataProviders.'ms.vss-admin-web.security-view-members-data-provider'.identities | Where-Object {$_.subjectKind -eq 'group' -and $_.principalName -eq "[$projectName]\Contributors"}
                # $contributorObj would be null if none of its permissions are set i.e. all perms are 'Not Set'.

                if($contributorObj)
                {
                    $contributorInputbody = "{
                        'contributionIds': [
                            'ms.vss-admin-web.security-view-permissions-data-provider'
                        ],
                        'dataProviderContext': {
                            'properties': {
                                'subjectDescriptor': '$($contributorObj.descriptor)',
                                'permissionSetId': '$([Release]::SecurityNamespaceId)',
                                'permissionSetToken': '$permissionSetToken',
                                'accountName': '$(($contributorObj.principalName).Replace('\','\\'))',
                                'sourcePage': {
                                    'url': '$releaseURL',
                                    'routeId': 'ms.vss-releaseManagement-web.hub-explorer-3-default-route',
                                    'routeValues': {
                                        'project': '$projectName',
                                        'viewname': 'details',
                                        'controller': 'ContributedPage',
                                        'action': 'Execute'
                                    }
                                }
                            }
                        }
                    }"
 | ConvertFrom-Json
                
                    #Web request to fetch RBAC permissions of Contributors group on task group.
                    $contributorResponseObj = [WebRequestHelper]::InvokePostWebRequest($apiURL,$contributorInputbody);
                    $contributorRBACObj = $contributorResponseObj[0].dataProviders.'ms.vss-admin-web.security-view-permissions-data-provider'.subjectPermissions
                    $editPerms = $contributorRBACObj | Where-Object {$_.displayName -eq 'Edit release pipeline'}
                   
                    if([Helpers]::CheckMember($editPerms,"effectivePermissionValue"))
                    {
                        #effectivePermissionValue equals to 1 implies edit release pipeline perms is set to 'Allow'. Its value is 3 if it is set to Allow (inherited). This param is not available if it is 'Not Set'.
                        if(($editPerms.effectivePermissionValue -eq 1) -or ($editPerms.effectivePermissionValue -eq 3))
                        {
                            $controlResult.AddMessage([VerificationResult]::Failed,"Contributors have edit permissions on the release pipeline.");
                        }
                        else 
                        {
                            $controlResult.AddMessage([VerificationResult]::Passed,"Contributors do not have edit permissions on the release pipeline.");    
                        }   
                    }
                    else 
                    {
                        $controlResult.AddMessage([VerificationResult]::Passed,"Contributors do not have edit permissions on the release pipeline.");
                    }
                }
                else 
                {
                    $controlResult.AddMessage([VerificationResult]::Passed,"Contributors do not have access to the release pipeline.");
                }
            }
            else 
            {
                $controlResult.AddMessage([VerificationResult]::Error,"Could not fetch RBAC details of the pipeline.");
            }
        }
        catch
        {
            $controlResult.AddMessage([VerificationResult]::Error,"Could not fetch RBAC details of the pipeline.");
        }

        return $controlResult;
    }

    hidden CheckActiveReleases()
    {
        try
        {
            if($this.ReleaseObj)
            {
                $apiURL = "https://dev.azure.com/{0}/_apis/Contribution/HierarchyQuery/project/{1}?api-version=5.0-preview.1" -f $($this.OrganizationContext.OrganizationName),$this.ProjectId;
                $inputbody =  "{
                    'contributionIds': [
                        'ms.vss-releaseManagement-web.releases-list-data-provider'
                    ],
                    'dataProviderContext': {
                        'properties': {
                            'definitionIds': '$($this.ReleaseObj.id)',
                            'definitionId': '$($this.ReleaseObj.id)',
                            'fetchAllReleases': true,
                            'sourcePage': {
                                'url': 'https://dev.azure.com/$($this.OrganizationContext.OrganizationName)/$($this.ResourceContext.ResourceGroupName)/_release?_a=releases&view=mine&definitionId=$($this.ReleaseObj.id)',
                                'routeId': 'ms.vss-releaseManagement-web.hub-explorer-3-default-route',
                                'routeValues': {
                                    'project': '$($this.ResourceContext.ResourceGroupName)',
                                    'viewname': 'hub-explorer-3-view',
                                    'controller': 'ContributedPage',
                                    'action': 'Execute'
                                }
                            }
                        }
                    }
                }"
  | ConvertFrom-Json 

            $responseObj = [WebRequestHelper]::InvokePostWebRequest($apiURL,$inputbody);

            if([Helpers]::CheckMember($responseObj,"dataProviders") -and $responseObj.dataProviders.'ms.vss-releaseManagement-web.releases-list-data-provider')
            {

                $releases = $responseObj.dataProviders.'ms.vss-releaseManagement-web.releases-list-data-provider'.releases

                if(($releases | Measure-Object).Count -gt 0 )
                {
                    $recentReleases = @()
                    $releases | ForEach-Object { 
                        if([datetime]::Parse( $_.createdOn) -gt (Get-Date).AddDays(-$($this.ControlSettings.Release.ReleaseHistoryPeriodInDays)))
                        {
                            $recentReleases+=$_
                        }
                    }
                    
                    if(($recentReleases | Measure-Object).Count -gt 0 )
                    {
                        $this.releaseActivityDetail.isReleaseActive = $true;
                        $this.releaseActivityDetail.message = "Found recent releases triggered within $($this.ControlSettings.Release.ReleaseHistoryPeriodInDays) days";
                    }
                    else
                    {
                        $this.releaseActivityDetail.isReleaseActive = $false;
                        $this.releaseActivityDetail.message = "No recent release history found in last $($this.ControlSettings.Release.ReleaseHistoryPeriodInDays) days";
                    }
                    $latestReleaseTriggerDate = [datetime]::Parse($releases[0].createdOn);
                    $this.releaseActivityDetail.latestReleaseTriggerDate = $latestReleaseTriggerDate;
                }
                else
                {
                    # no release history ever.
                    $this.releaseActivityDetail.isReleaseActive = $false;
                    [datetime] $createdDate = $this.ReleaseObj.createdOn
                    $this.releaseActivityDetail.releaseCreationDate = $createdDate
                    $this.releaseActivityDetail.message = "No release history found.";
                }
            
            }
            else
            {
                $this.releaseActivityDetail.isReleaseActive = $false;
                $this.releaseActivityDetail.message = "No release history found. Release is inactive.";
            }

            $responseObj = $null;
            }
        }
        catch
        {
            $this.releaseActivityDetail.message = "Could not fetch release details.";
        }
        $this.releaseActivityDetail.isComputed = $true
    }
}

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