forked from Azzhag/azure-sdk-tools
/
CloudBaseCmdlet.cs
392 lines (337 loc) · 13.3 KB
/
CloudBaseCmdlet.cs
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// ----------------------------------------------------------------------------------
//
// 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.
// ----------------------------------------------------------------------------------
namespace Microsoft.WindowsAzure.Commands.Utilities.Common
{
using System;
using System.Globalization;
using System.Linq;
using System.Management.Automation;
using System.Net;
using System.ServiceModel;
using System.ServiceModel.Channels;
using System.ServiceModel.Security;
using System.ServiceModel.Web;
using System.Threading;
using Microsoft.WindowsAzure.Commands.Utilities.Properties;
using ServiceManagement;
public abstract class CloudBaseCmdlet<T> : CmdletWithSubscriptionBase
where T : class
{
private Binding _serviceBinding;
private string _serviceEndpoint;
public string CurrentServiceEndpoint { get; set; }
public Binding ServiceBinding
{
get
{
if (_serviceBinding == null)
{
_serviceBinding = ConfigurationConstants.WebHttpBinding(MaxStringContentLength);
}
return _serviceBinding;
}
set { _serviceBinding = value; }
}
public string ServiceEndpoint
{
get
{
if (!string.IsNullOrEmpty(CurrentServiceEndpoint))
{
_serviceEndpoint = CurrentServiceEndpoint;
}
else if (CurrentSubscription != null && !string.IsNullOrEmpty(CurrentSubscription.ServiceEndpoint))
{
_serviceEndpoint = CurrentSubscription.ServiceEndpoint;
}
else
{
// Use default endpoint
_serviceEndpoint = ConfigurationConstants.ServiceManagementEndpoint;
}
return _serviceEndpoint;
}
set
{
_serviceEndpoint = value;
}
}
public T Channel
{
get;
set;
}
protected override void OnCurrentSubscriptionUpdated()
{
// Recreate the channel if necessary
if (!ShareChannel)
{
InitChannelCurrentSubscription(true);
}
}
public int MaxStringContentLength
{
get;
set;
}
/// <summary>
/// Sets the current subscription to the passed subscription name. If null, no changes.
/// </summary>
/// <param name="subscriptionName">The subscription name</param>
public void SetCurrentSubscription(string subscriptionName)
{
if (!string.IsNullOrEmpty(subscriptionName))
{
GlobalSettingsManager globalSettingsManager = GlobalSettingsManager.Load(GlobalPathInfo.GlobalSettingsDirectory);
CurrentSubscription = globalSettingsManager.Subscriptions.Values.First(sub => sub.SubscriptionName == subscriptionName);
}
}
protected void InitChannelCurrentSubscription()
{
InitChannelCurrentSubscription(false);
}
protected virtual void InitChannelCurrentSubscription(bool force)
{
if (CurrentSubscription == null)
{
throw new ArgumentException(Resources.InvalidCurrentSubscription);
}
if (CurrentSubscription.Certificate == null)
{
throw new ArgumentException(Resources.InvalidCurrentSuscriptionCertificate);
}
if (string.IsNullOrEmpty(CurrentSubscription.SubscriptionId))
{
throw new ArgumentException(Resources.InvalidCurrentSubscriptionId);
}
if (Channel == null || force)
{
Channel = CreateChannel();
}
}
protected virtual void OnProcessRecord()
{
// Intentionally left blank
}
protected override void ProcessRecord()
{
Validate.ValidateInternetConnection();
InitChannelCurrentSubscription();
base.ProcessRecord();
OnProcessRecord();
}
/// <summary>
/// Gets or sets a flag indicating whether CreateChannel should share
/// the command's current Channel when asking for a new one. This is
/// only used for testing.
/// </summary>
public bool ShareChannel { get; set; }
protected virtual T CreateChannel()
{
// If ShareChannel is set by a unit test, use the same channel that
// was passed into out constructor. This allows the test to submit
// a mock that we use for all network calls.
if (ShareChannel)
{
return Channel;
}
return ChannelHelper.CreateServiceManagementChannel<T>(
ServiceBinding,
new Uri(ServiceEndpoint),
CurrentSubscription.Certificate,
new HttpRestMessageInspector(WriteDebug));
}
protected void RetryCall(Action<string> call)
{
RetryCall(CurrentSubscription.SubscriptionId, call);
}
protected void RetryCall(string subsId, Action<string> call)
{
try
{
call(subsId);
}
catch (MessageSecurityException ex)
{
var webException = ex.InnerException as WebException;
if (webException == null)
{
throw;
}
var webResponse = webException.Response as HttpWebResponse;
if (webResponse != null && webResponse.StatusCode == HttpStatusCode.Forbidden)
{
WriteError(new ErrorRecord(new Exception(Resources.CommunicationCouldNotBeEstablished, ex), string.Empty, ErrorCategory.InvalidData, null));
}
else
{
throw;
}
}
}
protected TResult RetryCall<TResult>(Func<string, TResult> call)
{
return RetryCall(CurrentSubscription.SubscriptionId, call);
}
protected TResult RetryCall<TResult>(string subsId, Func<string, TResult> call)
{
try
{
return call(subsId);
}
catch (MessageSecurityException ex)
{
var webException = ex.InnerException as WebException;
if (webException == null)
{
throw;
}
var webResponse = webException.Response as HttpWebResponse;
if (webResponse != null && webResponse.StatusCode == HttpStatusCode.Forbidden)
{
WriteError(new ErrorRecord(new Exception(Resources.CommunicationCouldNotBeEstablished, ex), string.Empty, ErrorCategory.InvalidData, null));
throw;
}
throw;
}
}
protected virtual Operation WaitForOperation(string opdesc)
{
return WaitForOperation(opdesc, false);
}
protected virtual Operation WaitForOperation(string opdesc, bool silent)
{
string operationId = RetrieveOperationId();
Operation operation = null;
if (!string.IsNullOrEmpty(operationId))
{
try
{
SubscriptionData currentSubscription = this.GetCurrentSubscription();
operation = RetryCall(s => GetOperationStatus(currentSubscription.SubscriptionId, operationId));
var activityId = new Random().Next(1, 999999);
var progress = new ProgressRecord(activityId, opdesc, "Operation Status: " + operation.Status);
while (string.Compare(operation.Status, OperationState.Succeeded, StringComparison.OrdinalIgnoreCase) != 0 &&
string.Compare(operation.Status, OperationState.Failed, StringComparison.OrdinalIgnoreCase) != 0)
{
if (silent == false)
{
WriteProgress(progress);
}
Thread.Sleep(1 * 1000);
operation = RetryCall(s => GetOperationStatus(currentSubscription.SubscriptionId, operationId));
}
if (string.Compare(operation.Status, OperationState.Failed, StringComparison.OrdinalIgnoreCase) == 0)
{
var errorMessage = string.Format(CultureInfo.InvariantCulture, "{0}: {1}", operation.Status, operation.Error.Message);
var exception = new Exception(errorMessage);
WriteError(new ErrorRecord(exception, string.Empty, ErrorCategory.CloseError, null));
}
if (silent == false)
{
progress = new ProgressRecord(activityId, opdesc, "Operation Status: " + operation.Status);
WriteProgress(progress);
}
}
catch (CommunicationException ex)
{
WriteErrorDetails(ex);
}
}
else
{
operation = new Operation
{
OperationTrackingId = string.Empty,
Status = OperationState.Failed
};
}
return operation;
}
/// <summary>
/// Invoke the given operation within an OperationContextScope if the
/// channel supports it.
/// </summary>
/// <param name="action">The action to invoke.</param>
protected virtual void InvokeInOperationContext(Action action)
{
IContextChannel contextChannel = Channel as IContextChannel;
if (contextChannel != null)
{
using (new OperationContextScope(contextChannel))
{
action();
}
}
else
{
action();
}
}
protected virtual Operation GetOperationStatus(string subscriptionId, string operationId)
{
var channel = (IServiceManagement)Channel;
return channel.GetOperationStatus(subscriptionId, operationId);
}
protected virtual void WriteErrorDetails(CommunicationException exception)
{
ServiceManagementError error;
ErrorRecord errorRecord = null;
string operationId;
if (ErrorHelper.TryGetExceptionDetails(exception, out error, out operationId))
{
string errorDetails = string.Format(
CultureInfo.InvariantCulture,
"HTTP Status Code: {0} - HTTP Error Message: {1}\nOperation ID: {2}",
error.Code,
error.Message,
operationId);
errorRecord = new ErrorRecord(
new CommunicationException(errorDetails),
string.Empty,
ErrorCategory.CloseError,
null);
}
else
{
errorRecord = new ErrorRecord(exception, string.Empty, ErrorCategory.CloseError, null);
}
if (CommandRuntime != null)
{
WriteError(errorRecord);
}
}
/// <summary>
/// Wrap the base Cmdlet's WriteError call so that it will not throw
/// a NotSupportedException when called without a CommandRuntime (i.e.,
/// when not called from within Powershell).
/// </summary>
/// <param name="errorRecord">The error to write.</param>
protected void WriteWindowsAzureError(ErrorRecord errorRecord)
{
// If the exception is an Azure Service Management error, pull the
// Azure message out to the front instead of the generic response.
errorRecord = AzureServiceManagementException.WrapExistingError(errorRecord);
}
protected static string RetrieveOperationId()
{
var operationId = string.Empty;
if ((WebOperationContext.Current != null) && (WebOperationContext.Current.IncomingResponse != null))
{
operationId = WebOperationContext.Current.IncomingResponse.Headers[ServiceManagement.Constants.OperationTrackingIdHeader];
}
return operationId;
}
}
}