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Merge pull request #32 from Azure/key-store-refactor
Allow for SPN context persistence in .NET Core
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112 changes: 112 additions & 0 deletions
112
src/Authentication.ResourceManager/AzureRmServicePrincipalKeyStore.Netcore.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| // ---------------------------------------------------------------------------------- | ||
| // | ||
| // Copyright Microsoft Corporation | ||
| // 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. | ||
| // ---------------------------------------------------------------------------------- | ||
| using Microsoft.Azure.Commands.Common.Authentication; | ||
| using Microsoft.Azure.Commands.Common.Authentication.Abstractions; | ||
| using Microsoft.Azure.Commands.Common.Authentication.Models; | ||
| using Microsoft.Azure.Commands.Common.Authentication.ResourceManager; | ||
| using System; | ||
| using System.Collections; | ||
| using System.Collections.Generic; | ||
| using System.IO; | ||
| using System.Linq; | ||
| using System.Security; | ||
|
|
||
| namespace Microsoft.Azure.Commands.ResourceManager.Common | ||
| { | ||
| /// <summary> | ||
| /// Helper class to store service principal keys and retrieve them | ||
| /// from the Windows Credential Store. | ||
| /// </summary> | ||
| public class AzureRmServicePrincipalKeyStore : IServicePrincipalKeyStore | ||
| { | ||
| public const string Name = "ServicePrincipalKeyStore"; | ||
| private IDictionary<string, SecureString> _credentials { get; set; } | ||
|
|
||
| public AzureRmServicePrincipalKeyStore() : this(null) { } | ||
|
|
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| public AzureRmServicePrincipalKeyStore(IAzureContextContainer profile) | ||
| { | ||
| _credentials = new Dictionary<string, SecureString>(); | ||
| if (profile != null && profile.Accounts != null) | ||
| { | ||
| foreach (var account in profile.Accounts) | ||
| { | ||
| if (account != null && account.ExtendedProperties.ContainsKey(AzureAccount.Property.ServicePrincipalSecret)) | ||
| { | ||
| var appId = account.Id; | ||
| var tenantId = account.GetTenants().FirstOrDefault(); | ||
| var key = CreateKey(appId, tenantId); | ||
| var servicePrincipalSecret = account.ExtendedProperties[AzureAccount.Property.ServicePrincipalSecret]; | ||
| _credentials[key] = ConvertToSecureString(servicePrincipalSecret); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| public void SaveKey(string appId, string tenantId, SecureString serviceKey) | ||
| { | ||
| var key = CreateKey(appId, tenantId); | ||
| _credentials[key] = serviceKey; | ||
| } | ||
|
|
||
| public SecureString GetKey(string appId, string tenantId) | ||
| { | ||
| IntPtr pCredential = IntPtr.Zero; | ||
| try | ||
| { | ||
| var key = CreateKey(appId, tenantId); | ||
| return _credentials[key]; | ||
|
|
||
| } | ||
| catch | ||
| { | ||
| // we could be running in an environment that does not have credentials store | ||
| } | ||
|
|
||
| return null; | ||
| } | ||
|
|
||
|
|
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| public void DeleteKey(string appId, string tenantId) | ||
| { | ||
| try | ||
| { | ||
| var key = CreateKey(appId, tenantId); | ||
| _credentials.Remove(key); | ||
| } | ||
| catch | ||
| { | ||
| } | ||
| } | ||
|
|
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| private string CreateKey(string appId, string tenantId) | ||
| { | ||
| return $"{appId}_{tenantId}"; | ||
| } | ||
|
|
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| internal SecureString ConvertToSecureString(string password) | ||
| { | ||
| if (password == null) | ||
| throw new ArgumentNullException("password"); | ||
|
|
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| var securePassword = new SecureString(); | ||
|
|
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| foreach (char c in password) | ||
| securePassword.AppendChar(c); | ||
|
|
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| securePassword.MakeReadOnly(); | ||
| return securePassword; | ||
| } | ||
| } | ||
| } |
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