From 8c8b8cad912bae036dfc8617625b3d92e13e384d Mon Sep 17 00:00:00 2001
From: Martin Guibert <martin@cloudskiff.com>
Date: Tue, 19 Jul 2022 16:41:56 +0200
Subject: [PATCH] fix: fix #1558 by ignoring FeatureNotSupported

---
 .../remote/azurerm/repository/storage.go      | 28 +++++++++++++--
 .../remote/azurerm/repository/storage_test.go | 35 +++++++++++++++++++
 .../azurerm_storage_container/terraform.tf    |  9 +++++
 3 files changed, 70 insertions(+), 2 deletions(-)

diff --git a/enumeration/remote/azurerm/repository/storage.go b/enumeration/remote/azurerm/repository/storage.go
index 94cc3e87..595db2cc 100644
--- a/enumeration/remote/azurerm/repository/storage.go
+++ b/enumeration/remote/azurerm/repository/storage.go
@@ -3,6 +3,10 @@ package repository
 import (
 	"context"
 	"fmt"
+	"strings"
+
+	"github.com/Azure/azure-sdk-for-go/sdk/storage/azblob"
+	"github.com/sirupsen/logrus"
 	"github.com/snyk/driftctl/enumeration/remote/azurerm/common"
 	"github.com/snyk/driftctl/enumeration/remote/cache"
 
@@ -111,7 +115,9 @@ func (s *storageRepository) ListAllStorageContainer(account *armstorage.StorageA
 	for pager.NextPage(context.Background()) {
 		resp := pager.PageResponse()
 		if err := pager.Err(); err != nil {
-			return nil, err
+			if !shouldIgnoreStorageContainerError(err) {
+				return nil, err
+			}
 		}
 		for _, item := range resp.BlobContainersListResult.ListContainerItems.Value {
 			results = append(results, fmt.Sprintf("%s%s", *account.Properties.PrimaryEndpoints.Blob, *item.Name))
@@ -119,10 +125,28 @@ func (s *storageRepository) ListAllStorageContainer(account *armstorage.StorageA
 	}
 
 	if err := pager.Err(); err != nil {
-		return nil, err
+		if !shouldIgnoreStorageContainerError(err) {
+			return nil, err
+		}
 	}
 
 	s.cache.Put(cacheKey, results)
 
 	return results, nil
 }
+
+func shouldIgnoreStorageContainerError(err error) bool {
+	azureErr, ok := err.(azblob.ResponseError)
+	if !ok {
+		return false
+	}
+	unwrapped := azureErr.Unwrap().Error()
+	if strings.Contains(unwrapped, "FeatureNotSupportedForAccount") {
+		logrus.WithFields(logrus.Fields{
+			"repository": "StorageRepository",
+			"error":      err,
+		}).Debug("Ignoring ListStorageContainer error ...")
+		return true
+	}
+	return false
+}
diff --git a/enumeration/remote/azurerm/repository/storage_test.go b/enumeration/remote/azurerm/repository/storage_test.go
index 2deea26e..c8e4461e 100644
--- a/enumeration/remote/azurerm/repository/storage_test.go
+++ b/enumeration/remote/azurerm/repository/storage_test.go
@@ -4,6 +4,7 @@ import (
 	"reflect"
 	"testing"
 
+	"github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime"
 	"github.com/Azure/azure-sdk-for-go/sdk/azcore/to"
 	"github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/storage/armstorage"
 	"github.com/pkg/errors"
@@ -371,3 +372,37 @@ func Test_ListAllStorageContainer_Error(t *testing.T) {
 	assert.Nil(t, got)
 	assert.Equal(t, expectedErr, err)
 }
+
+func Test_ListAllStorageContainer_IgnoredError(t *testing.T) {
+
+	account := armstorage.StorageAccount{
+		TrackedResource: armstorage.TrackedResource{
+			Resource: armstorage.Resource{
+				ID:   to.StringPtr("/subscriptions/00000000-0000-0000-0000-000000000000/resourceGroups/foobar/providers/Microsoft.Storage/storageAccounts/testeliedriftctl"),
+				Name: to.StringPtr("testeliedriftctl"),
+			},
+		},
+	}
+
+	fakeClient := &mockBlobContainerClient{}
+	mockPager := &mockBlobContainerListPager{}
+	mockPager.On("NextPage", mock.Anything).Return(false).Times(1)
+	mockPager.On("Err").Return(runtime.NewResponseError(
+		errors.New("{\"error\":{\"code\":\"FeatureNotSupportedForAccount\",\"message\":\"Blob is not supported for the account.\"}}"),
+		nil),
+	).Times(1)
+
+	fakeClient.On("List", "foobar", "testeliedriftctl", (*armstorage.BlobContainersListOptions)(nil)).Return(mockPager)
+
+	s := &storageRepository{
+		blobContainerClient: fakeClient,
+		cache:               cache.New(0),
+	}
+	got, err := s.ListAllStorageContainer(&account)
+
+	fakeClient.AssertExpectations(t)
+	mockPager.AssertExpectations(t)
+
+	assert.Empty(t, got)
+	assert.Equal(t, nil, err)
+}
diff --git a/pkg/resource/azurerm/testdata/acc/azurerm_storage_container/terraform.tf b/pkg/resource/azurerm/testdata/acc/azurerm_storage_container/terraform.tf
index 14d355c9..6857ef4e 100644
--- a/pkg/resource/azurerm/testdata/acc/azurerm_storage_container/terraform.tf
+++ b/pkg/resource/azurerm/testdata/acc/azurerm_storage_container/terraform.tf
@@ -27,6 +27,15 @@ resource "azurerm_storage_account" "example" {
     }
 }
 
+resource "azurerm_storage_account" "noblob" {
+    name                     = "testaccdriftctlnoblob"
+    resource_group_name      = data.azurerm_resource_group.qa1.name
+    location                 = data.azurerm_resource_group.qa1.location
+    account_tier             = "Premium"
+    account_replication_type = "LRS"
+    account_kind = "FileStorage"
+}
+
 resource "azurerm_storage_container" "private" {
     name                  = "private"
     storage_account_name  = azurerm_storage_account.example.name