Merge pull request #13 from gambtho/thgamble/azureadid

update azidentity to 0.13.1

README.md

@@ -130,6 +130,7 @@ The credential type is determined by the new `fedauth` connection string paramet
 * `fedauth=ActiveDirectoryDefault` - authenticates using a chained set of credentials. The chain is built from EnvironmentCredential -> ManagedIdentityCredential->AzureCLICredential.  See [DefaultAzureCredential docs](https://github.com/Azure/azure-sdk-for-go/wiki/Set-up-Your-Environment-for-Authentication#configure-defaultazurecredential) for instructions on setting up your host environment to use it. Using this option allows you to have the same connection string in a service deployment as on your interactive development machine.
 * `fedauth=ActiveDirectoryManagedIdentity` or `fedauth=ActiveDirectoryMSI` - authenticates using a system-assigned or user-assigned Azure Managed Identity.
   * `user id=<identity id>` - optional id of user-assigned managed identity. If empty, system-assigned managed identity is used.
+  * `resource id=<resource id>` - optional resource id of user-assigned managed identity.  If empty, system-assigned managed identity or user id are used (if both user id and resource id are provided, resource id will be used)
 * `fedauth=ActiveDirectoryInteractive` - authenticates using credentials acquired from an external web browser. Only suitable for use with human interaction.
   * `applicationclientid=<application id>` - This guid identifies an Azure Active Directory enterprise application that the AAD admin has approved for accessing Azure SQL database resources in the tenant. This driver does not have an associated application id of its own.
 

azuread/configuration.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"os"
 	"strings"
 
 	"github.com/Azure/azure-sdk-for-go/sdk/azcore"
@@ -38,6 +39,7 @@ type azureFedAuthConfig struct {
 	tenantID        string
 	clientSecret    string
 	certificatePath string
+	resourceID      string
 
 	// AD password/managed identity/interactive
 	user                string
@@ -92,6 +94,7 @@ func (p *azureFedAuthConfig) validateParameters(params map[string]string) error
 		// When using MSI, to request a specific client ID or user-assigned identity,
 		// provide the ID in the "user id" parameter
 		p.adalWorkflow = mssql.FedAuthADALWorkflowMSI
+		p.resourceID, _ = params["resource id"]
 		p.clientID, _ = splitTenantAndClientID(params["user id"])
 	case strings.EqualFold(fedAuthWorkflow, ActiveDirectoryApplication) || strings.EqualFold(fedAuthWorkflow, ActiveDirectoryServicePrincipal):
 		p.adalWorkflow = mssql.FedAuthADALWorkflowPassword
@@ -164,16 +167,28 @@ func (p *azureFedAuthConfig) provideActiveDirectoryToken(ctx context.Context, se
 	case ActiveDirectoryServicePrincipal, ActiveDirectoryApplication:
 		switch {
 		case p.certificatePath != "":
-			cred, err = azidentity.NewClientCertificateCredential(tenant, p.clientID, p.certificatePath, &azidentity.ClientCertificateCredentialOptions{Password: p.clientSecret})
+			certData, err := os.ReadFile(p.certificatePath)
+			if err != nil {
+			certs, key, err := azidentity.ParseCertificates(certData, []byte(p.clientSecret))
+			if err != nil {
+			cred, err = azidentity.NewClientCertificateCredential(tenant, p.clientID, certs, key, nil)
+			}
+		}
 		default:
 			cred, err = azidentity.NewClientSecretCredential(tenant, p.clientID, p.clientSecret, nil)
 		}
 	case ActiveDirectoryPassword:
 		cred, err = azidentity.NewUsernamePasswordCredential(tenant, p.applicationClientID, p.user, p.password, nil)
 	case ActiveDirectoryMSI, ActiveDirectoryManagedIdentity:
-		cred, err = azidentity.NewManagedIdentityCredential(p.clientID, nil)
+		if p.resourceID != "" {
+			cred, err = azidentity.NewManagedIdentityCredential(&azidentity.ManagedIdentityCredentialOptions{ID: azidentity.ResourceID(p.resourceID)})
+		} else if p.clientID != "" {
+			cred, err = azidentity.NewManagedIdentityCredential(&azidentity.ManagedIdentityCredentialOptions{ID: azidentity.ClientID(p.clientID)})
+		} else {
+			cred, err = azidentity.NewManagedIdentityCredential(nil)
+		}
 	case ActiveDirectoryInteractive:
-		cred, err = azidentity.NewInteractiveBrowserCredential(&azidentity.InteractiveBrowserCredentialOptions{AuthorityHost: authority, ClientID: p.applicationClientID})
+		cred, err = azidentity.NewInteractiveBrowserCredential(&azidentity.InteractiveBrowserCredentialOptions{AuthorityHost: azidentity.AuthorityHost(authority), ClientID: p.applicationClientID})
 
 	default:
 		// Integrated just uses Default until azidentity adds Windows-specific authentication

azuread/configuration_test.go

@@ -84,8 +84,17 @@ func TestValidateParameters(t *testing.T) {
 			dsn:  "server=someserver.database.windows.net;fedauth=ActiveDirectoryManagedIdentity;user id=identity-client-id",
 			expected: &azureFedAuthConfig{
 				adalWorkflow:    mssql.FedAuthADALWorkflowMSI,
-				clientID:        "identity-client-id",
-				fedAuthWorkflow: ActiveDirectoryManagedIdentity,
+				clientID: "identity-client-id",
+			    fedAuthWorkflow: ActiveDirectoryManagedIdentity,
+			},
+		},
+		{
+			name: "managed identity with resource id",
+			dsn:  "server=someserver.database.windows.net;fedauth=ActiveDirectoryManagedIdentity;resource id=/subscriptions/{guid}/resourceGroups/{resource-group-name}/{resource-provider-namespace}/{resource-type}/{resource-name}",
+			expected: &azureFedAuthConfig{
+				adalWorkflow:        mssql.FedAuthADALWorkflowMSI,
+				resourceID:          "/subscriptions/{guid}/resourceGroups/{resource-group-name}/{resource-provider-namespace}/{resource-type}/{resource-name}",
+				fedAuthWorkflow:     ActiveDirectoryManagedIdentity,
 			},
 		},
 	}

go.mod

@@ -3,9 +3,15 @@ module github.com/microsoft/go-mssqldb
 go 1.13
 
 require (
-	github.com/Azure/azure-sdk-for-go/sdk/azcore v0.19.0
-	github.com/Azure/azure-sdk-for-go/sdk/azidentity v0.11.0
+	github.com/Azure/azure-sdk-for-go/sdk/azcore v0.21.1
+	github.com/Azure/azure-sdk-for-go/sdk/azidentity v0.13.1
+	github.com/dnaeon/go-vcr v1.2.0 // indirect
+	github.com/golang-jwt/jwt v3.2.2+incompatible // indirect
 	github.com/golang-sql/civil v0.0.0-20190719163853-cb61b32ac6fe
 	github.com/golang-sql/sqlexp v0.1.0
-	golang.org/x/crypto v0.0.0-20201016220609-9e8e0b390897
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/pkg/browser v0.0.0-20210911075715-681adbf594b8 // indirect
+	golang.org/x/crypto v0.0.0-20220214200702-86341886e292
+	golang.org/x/net v0.0.0-20220225172249-27dd8689420f // indirect
+	golang.org/x/sys v0.0.0-20220224120231-95c6836cb0e7 // indirect
 )

go.sum

@@ -1,45 +1,80 @@
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