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duplicati/Duplicati/Library/Backend/OpenStack/OpenStackStorage.cs
T

681 lines
30 KiB
C#

// Copyright (C) 2025, The Duplicati Team
// https://duplicati.com, hello@duplicati.com
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using Duplicati.Library.Interface;
using Duplicati.Library.Utility;
using Newtonsoft.Json;
using Newtonsoft.Json.Converters;
using System.Net;
using System.Text;
using Duplicati.Library.Common.IO;
using System.Runtime.CompilerServices;
using Duplicati.Library.Utility.Options;
using System.Threading.Tasks;
namespace Duplicati.Library.Backend.OpenStack
{
public class OpenStackStorage : IBackend, IStreamingBackend
{
private const string DOMAINNAME_OPTION = "openstack-domain-name";
private const string TENANTNAME_OPTION = "openstack-tenant-name";
private const string AUTHURI_OPTION = "openstack-authuri";
private const string VERSION_OPTION = "openstack-version";
private const string APIKEY_OPTION = "openstack-apikey";
private const string REGION_OPTION = "openstack-region";
private const int PAGE_LIMIT = 500;
private readonly string m_container;
private readonly string m_prefix;
private readonly string? m_domainName;
private readonly string m_username;
private readonly string? m_password;
private readonly string m_authUri;
private readonly string? m_version;
private readonly string? m_tenantName;
private readonly string? m_apikey;
private readonly string? m_region;
private readonly TimeoutOptionsHelper.Timeouts m_timeouts;
protected string? m_simplestorageendpoint;
private readonly WebHelper m_helper;
private OpenStackAuthResponse.TokenClass? m_accessToken;
public static readonly KeyValuePair<string, string>[] KNOWN_OPENSTACK_PROVIDERS = {
new KeyValuePair<string, string>("Rackspace US", "https://identity.api.rackspacecloud.com/v2.0"),
new KeyValuePair<string, string>("Rackspace UK", "https://lon.identity.api.rackspacecloud.com/v2.0"),
new KeyValuePair<string, string>("OVH Cloud Storage", "https://auth.cloud.ovh.net/v3"),
new KeyValuePair<string, string>("Selectel Cloud Storage", "https://auth.selcdn.ru"),
new KeyValuePair<string, string>("Memset Cloud Storage", "https://auth.storage.memset.com"),
new KeyValuePair<string, string>("Infomaniak Swiss Backup cluster 1", "https://swiss-backup.infomaniak.com/identity/v3"),
new KeyValuePair<string, string>("Infomaniak Swiss Backup cluster 2", "https://swiss-backup02.infomaniak.com/identity/v3"),
new KeyValuePair<string, string>("Infomaniak Swiss Backup cluster 3", "https://swiss-backup03.infomaniak.com/identity/v3"),
new KeyValuePair<string, string>("Infomaniak Swiss Backup cluster 4", "https://swiss-backup04.infomaniak.com/identity/v3"),
new KeyValuePair<string, string>("Infomaniak Public Cloud 1", "https://api.pub1.infomaniak.cloud/identity/v3"),
new KeyValuePair<string, string>("Infomaniak Public Cloud 2", "https://api.pub2.infomaniak.cloud/identity/v3"),
new KeyValuePair<string, string>("Catalyst Cloud - nz-hlz-1 (NZ)", "https://api.nz-hlz-1.catalystcloud.io:5000/v3"),
new KeyValuePair<string, string>("Catalyst Cloud - nz-por-1 (NZ)", "https://api.nz-por-1.catalystcloud.io:5000/v3"),
};
public static readonly KeyValuePair<string, string>[] OPENSTACK_VERSIONS = {
new KeyValuePair<string, string>("v2.0", "v2"),
new KeyValuePair<string, string>("v3", "v3"),
};
private class Keystone3AuthRequest
{
public class AuthContainer
{
public Identity? identity { get; set; }
public Scope? scope { get; set; }
}
public class Identity
{
[JsonProperty(ItemConverterType = typeof(StringEnumConverter))]
public IdentityMethods[] methods { get; set; }
[JsonProperty("password", NullValueHandling = NullValueHandling.Ignore)]
public PasswordBasedRequest? PasswordCredentials { get; set; }
public Identity()
{
this.methods = new[] { IdentityMethods.password };
}
}
public class Scope
{
public Project? project;
}
public enum IdentityMethods
{
password,
}
public class PasswordBasedRequest
{
public UserCredentials? user { get; set; }
}
public class UserCredentials
{
public Domain domain { get; set; }
public string name { get; set; }
public string password { get; set; }
public UserCredentials()
{
domain = null!;
name = null!;
password = null!;
}
public UserCredentials(Domain domain, string name, string password)
{
this.domain = domain;
this.name = name;
this.password = password;
}
}
public class Domain
{
public string? name { get; set; }
public Domain(string? name)
{
this.name = name;
}
}
public class Project
{
public Domain domain { get; set; }
public string name { get; set; }
public Project(Domain domain, string name)
{
this.domain = domain;
this.name = name;
}
}
public AuthContainer auth { get; set; }
public Keystone3AuthRequest(string? domain_name, string username, string? password, string? project_name)
{
Domain domain = new Domain(domain_name);
this.auth = new AuthContainer();
this.auth.identity = new Identity();
this.auth.identity.PasswordCredentials = new PasswordBasedRequest();
this.auth.identity.PasswordCredentials.user = new UserCredentials(domain, username, password!);
this.auth.scope = new Scope();
this.auth.scope.project = new Project(domain, project_name!);
}
}
private class OpenStackAuthRequest
{
public class AuthContainer
{
[JsonProperty("RAX-KSKEY:apiKeyCredentials", NullValueHandling = NullValueHandling.Ignore)]
public ApiKeyBasedRequest? ApiCredentials { get; set; }
[JsonProperty("passwordCredentials", NullValueHandling = NullValueHandling.Ignore)]
public PasswordBasedRequest? PasswordCredentials { get; set; }
[JsonProperty("tenantName", NullValueHandling = NullValueHandling.Ignore)]
public string? TenantName { get; set; }
[JsonProperty("token", NullValueHandling = NullValueHandling.Ignore)]
public TokenBasedRequest? Token { get; set; }
}
public class ApiKeyBasedRequest
{
public string? username { get; set; }
public string? apiKey { get; set; }
}
public class PasswordBasedRequest
{
public string? username { get; set; }
public string? password { get; set; }
public string? tenantName { get; set; }
}
public class TokenBasedRequest
{
public string? id { get; set; }
}
public AuthContainer auth { get; set; }
public OpenStackAuthRequest(string? tenantname, string username, string? password, string? apikey)
{
this.auth = new AuthContainer();
this.auth.TenantName = tenantname;
if (string.IsNullOrEmpty(apikey))
{
this.auth.PasswordCredentials = new PasswordBasedRequest
{
username = username,
password = password,
};
}
else
{
this.auth.ApiCredentials = new ApiKeyBasedRequest
{
username = username,
apiKey = apikey
};
}
}
}
private class Keystone3AuthResponse
{
public TokenClass? token { get; set; }
public class EndpointItem
{
// 'interface' is a reserved keyword, so we need this decorator to map it
[JsonProperty(PropertyName = "interface")]
public string? interface_name { get; set; }
public string? region { get; set; }
public string? url { get; set; }
}
public class CatalogItem
{
public EndpointItem[]? endpoints { get; set; }
public string? name { get; set; }
public string? type { get; set; }
}
public class TokenClass
{
public CatalogItem[]? catalog { get; set; }
public DateTime? expires_at { get; set; }
}
}
private class OpenStackAuthResponse
{
public AccessClass? access { get; set; }
public class TokenClass
{
public string? id { get; set; }
public DateTime? expires { get; set; }
}
public class EndpointItem
{
public string? region { get; set; }
public string? tenantId { get; set; }
public string? publicURL { get; set; }
public string? internalURL { get; set; }
}
public class ServiceItem
{
public string? name { get; set; }
public string? type { get; set; }
public EndpointItem[]? endpoints { get; set; }
}
public class AccessClass
{
public TokenClass? token { get; set; }
public ServiceItem[]? serviceCatalog { get; set; }
}
}
private class OpenStackStorageItem
{
public string? name { get; set; }
public DateTime? last_modified { get; set; }
public long? bytes { get; set; }
public string? content_type { get; set; }
public string? subdir { get; set; }
}
private class WebHelper : JSONWebHelper
{
private readonly OpenStackStorage m_parent;
public WebHelper(OpenStackStorage parent) { m_parent = parent; }
public override HttpWebRequest CreateRequest(string url, string? method = null)
{
var req = base.CreateRequest(url, method);
req.Headers["X-Auth-Token"] = m_parent.GetAccessToken(CancellationToken.None).Await();
return req;
}
}
public OpenStackStorage()
{
m_container = null!;
m_prefix = null!;
m_timeouts = null!;
m_username = null!;
m_authUri = null!;
m_helper = null!;
}
public OpenStackStorage(string url, Dictionary<string, string?> options)
{
var uri = new Utility.Uri(url);
m_container = uri.Host;
m_prefix = Util.AppendDirSeparator("/" + uri.Path, "/");
m_timeouts = TimeoutOptionsHelper.Parse(options);
// For OpenStack we do not use a leading slash
if (m_prefix.StartsWith("/", StringComparison.Ordinal))
m_prefix = m_prefix.Substring(1);
var auth = AuthOptionsHelper.Parse(options, uri);
options.TryGetValue(DOMAINNAME_OPTION, out m_domainName);
options.TryGetValue(TENANTNAME_OPTION, out m_tenantName);
options.TryGetValue(VERSION_OPTION, out m_version);
options.TryGetValue(APIKEY_OPTION, out m_apikey);
options.TryGetValue(REGION_OPTION, out m_region);
if (!auth.HasUsername)
throw new UserInformationException(Strings.OpenStack.MissingOptionError(AuthOptionsHelper.AuthUsernameOption), "OpenStackMissingUsername");
m_username = auth.Username!;
m_password = auth.Password;
var authUri = options.GetValueOrDefault(AUTHURI_OPTION);
if (string.IsNullOrWhiteSpace(authUri))
throw new UserInformationException(Strings.OpenStack.MissingOptionError(AUTHURI_OPTION), "OpenStackMissingAuthUri");
m_authUri = authUri;
if (string.IsNullOrWhiteSpace(m_version) && m_authUri.EndsWith("/v3", StringComparison.OrdinalIgnoreCase))
m_version = "v3";
switch (m_version)
{
case "v3":
if (string.IsNullOrWhiteSpace(m_password))
throw new UserInformationException(Strings.OpenStack.MissingOptionError(AuthOptionsHelper.AuthPasswordOption), "OpenStackMissingPassword");
if (string.IsNullOrWhiteSpace(m_domainName))
throw new UserInformationException(Strings.OpenStack.MissingOptionError(DOMAINNAME_OPTION), "OpenStackMissingDomainName");
if (string.IsNullOrWhiteSpace(m_tenantName))
throw new UserInformationException(Strings.OpenStack.MissingOptionError(TENANTNAME_OPTION), "OpenStackMissingTenantName");
break;
case "v2":
default:
if (string.IsNullOrWhiteSpace(m_apikey))
{
if (string.IsNullOrWhiteSpace(m_password))
throw new UserInformationException(Strings.OpenStack.MissingOptionError(AuthOptionsHelper.AuthPasswordOption), "OpenStackMissingPassword");
if (string.IsNullOrWhiteSpace(m_tenantName))
throw new UserInformationException(Strings.OpenStack.MissingOptionError(TENANTNAME_OPTION), "OpenStackMissingTenantName");
}
break;
}
m_helper = new WebHelper(this);
}
protected async Task<string> GetAccessToken(CancellationToken cancelToken)
{
if (m_accessToken == null || (m_accessToken.expires.HasValue && (m_accessToken.expires.Value - DateTime.UtcNow).TotalSeconds < 30))
await GetAuthResponse(cancelToken).ConfigureAwait(false);
return m_accessToken!.id!;
}
private static string JoinUrls(string uri, string fragment)
{
fragment = fragment ?? "";
return uri + (uri.EndsWith("/", StringComparison.Ordinal) ? "" : "/") + (fragment.StartsWith("/", StringComparison.Ordinal) ? fragment.Substring(1) : fragment);
}
private static string JoinUrls(string uri, string fragment1, string fragment2)
{
return JoinUrls(JoinUrls(uri, fragment1), fragment2);
}
private Task GetAuthResponse(CancellationToken cancellationToken)
{
switch (this.m_version)
{
case "v3":
return GetKeystone3AuthResponse(cancellationToken);
case "v2":
default:
return GetOpenstackAuthResponse(cancellationToken);
}
}
private async Task<Keystone3AuthResponse> GetKeystone3AuthResponse(CancellationToken cancellationToken)
{
var helper = new JSONWebHelper();
var req = helper.CreateRequest(JoinUrls(m_authUri, "auth/tokens"));
req.Accept = "application/json";
req.Method = "POST";
var data = Encoding.UTF8.GetBytes(
JsonConvert.SerializeObject(
new Keystone3AuthRequest(m_domainName, m_username, m_password, m_tenantName)
));
req.ContentLength = data.Length;
req.ContentType = "application/json; charset=UTF-8";
await Utility.Utility.WithTimeout(m_timeouts.ShortTimeout, cancellationToken, async ct =>
{
using (var rs = req.GetRequestStream())
await rs.WriteAsync(data, 0, data.Length, ct);
}).ConfigureAwait(false);
var http_response = await Utility.Utility.WithTimeout(m_timeouts.ShortTimeout, cancellationToken, ct => req.GetResponse()).ConfigureAwait(false);
var resp = await Utility.Utility.WithTimeout(m_timeouts.ShortTimeout, cancellationToken, ct =>
{
using (var reader = new StreamReader(http_response.GetResponseStream()))
return JsonConvert.DeserializeObject<Keystone3AuthResponse>(reader.ReadToEnd())
?? throw new Exception("Failed to parse response");
}).ConfigureAwait(false);
if (resp.token == null)
throw new Exception("No token received");
var token = http_response.Headers["X-Subject-Token"];
if (string.IsNullOrWhiteSpace(token))
throw new Exception("No token received");
this.m_accessToken = new OpenStackAuthResponse.TokenClass()
{
id = token,
expires = resp.token.expires_at
};
// Grab the endpoint now that we have received it anyway
var fileservice = (resp.token.catalog ?? []).FirstOrDefault(x => string.Equals(x.type, "object-store", StringComparison.OrdinalIgnoreCase));
if (fileservice == null)
throw new Exception("No object-store service found, is this service supported by the provider?");
if (fileservice.endpoints == null || fileservice.endpoints.Length == 0)
throw new Exception("No endpoints found for object-store service");
var endpoint = fileservice.endpoints.FirstOrDefault(x => (string.Equals(m_region, x.region) && string.Equals(x.interface_name, "public", StringComparison.OrdinalIgnoreCase))) ?? fileservice.endpoints.First();
m_simplestorageendpoint = endpoint.url;
return resp;
}
private async Task<OpenStackAuthResponse> GetOpenstackAuthResponse(CancellationToken cancellationToken)
{
var helper = new JSONWebHelper();
var req = helper.CreateRequest(JoinUrls(m_authUri, "tokens"));
req.Accept = "application/json";
req.Method = "POST";
var resp = await Utility.Utility.WithTimeout(m_timeouts.ShortTimeout, cancellationToken, ct => helper.ReadJSONResponse<OpenStackAuthResponse>(
req,
new OpenStackAuthRequest(m_tenantName, m_username, m_password, m_apikey)
)).ConfigureAwait(false);
if (resp.access?.token == null)
throw new Exception("No token received");
m_accessToken = resp.access.token;
// Grab the endpoint now that we have received it anyway
var fileservice = (resp.access.serviceCatalog ?? []).FirstOrDefault(x => string.Equals(x.type, "object-store", StringComparison.OrdinalIgnoreCase));
if (fileservice == null)
throw new Exception("No object-store service found, is this service supported by the provider?");
var fileserviceendpoints = fileservice.endpoints ?? [];
var endpoint = fileserviceendpoints.FirstOrDefault(x => string.Equals(m_region, x.region))
?? fileserviceendpoints.FirstOrDefault();
if (endpoint == null)
throw new Exception("No endpoint found for object-store service");
m_simplestorageendpoint = endpoint.publicURL;
return resp;
}
protected async Task<string> GetSimpleStorageEndPoint(CancellationToken cancelToken)
{
if (m_simplestorageendpoint == null)
await GetAuthResponse(cancelToken);
return m_simplestorageendpoint!;
}
#region IStreamingBackend implementation
public async Task PutAsync(string remotename, Stream stream, CancellationToken cancelToken)
{
var url = JoinUrls(await GetSimpleStorageEndPoint(cancelToken).ConfigureAwait(false), m_container, Utility.Uri.UrlPathEncode(m_prefix + remotename));
using (var ts = stream.ObserveReadTimeout(m_timeouts.ShortTimeout, false))
using (await m_helper.GetResponseAsync(url, cancelToken, ts, "PUT").ConfigureAwait(false))
{ }
}
public async Task GetAsync(string remotename, Stream stream, CancellationToken cancelToken)
{
var url = JoinUrls(await GetSimpleStorageEndPoint(cancelToken).ConfigureAwait(false), m_container, Utility.Uri.UrlPathEncode(m_prefix + remotename));
try
{
using (var resp = await Utility.Utility.WithTimeout(m_timeouts.ShortTimeout, cancelToken, ct => m_helper.GetResponse(url)).ConfigureAwait(false))
using (var rs = AsyncHttpRequest.TrySetTimeout(await Utility.Utility.WithTimeout(m_timeouts.ShortTimeout, cancelToken, ct => resp.GetResponseStream()).ConfigureAwait(false)))
using (var ts = rs.ObserveReadTimeout(m_timeouts.ShortTimeout))
await Utility.Utility.CopyStreamAsync(ts, stream, cancelToken).ConfigureAwait(false);
}
catch (WebException wex)
{
if (wex.Response is HttpWebResponse response && response.StatusCode == HttpStatusCode.NotFound)
throw new FileMissingException();
else
throw;
}
}
#endregion
#region IBackend implementation
private async Task<T> HandleListExceptions<T>(Func<Task<T>> func)
{
try
{
return await func().ConfigureAwait(false);
}
catch (WebException wex)
{
if (wex.Response is HttpWebResponse response && (response.StatusCode == HttpStatusCode.NotFound))
throw new FolderMissingException();
else
throw;
}
}
/// <inheritdoc />
public async IAsyncEnumerable<IFileEntry> ListAsync([EnumeratorCancellation] CancellationToken cancelToken)
{
var plainurl = JoinUrls(await GetSimpleStorageEndPoint(cancelToken).ConfigureAwait(false), m_container) + string.Format("?format=json&delimiter=/&limit={0}", PAGE_LIMIT);
if (!string.IsNullOrEmpty(m_prefix))
plainurl += "&prefix=" + Utility.Uri.UrlEncode(m_prefix);
var url = plainurl;
while (true)
{
var req = m_helper.CreateRequest(url);
req.Accept = "application/json";
var items = await HandleListExceptions(async () => await Utility.Utility.WithTimeout(m_timeouts.ListTimeout, cancelToken, ct => m_helper.ReadJSONResponseAsync<OpenStackStorageItem[]>(req, ct))).ConfigureAwait(false);
foreach (var n in items)
{
var name = n.name;
if (string.IsNullOrWhiteSpace(name))
continue;
if (name.StartsWith(m_prefix, StringComparison.Ordinal))
name = name.Substring(m_prefix.Length);
if (n.bytes == null)
yield return new FileEntry(name);
else if (n.last_modified == null)
yield return new FileEntry(name, n.bytes.Value);
else
yield return new FileEntry(name, n.bytes.Value, n.last_modified.Value, n.last_modified.Value);
}
if (items.Length != PAGE_LIMIT)
yield break;
// Prepare next listing entry
url = plainurl + string.Format("&marker={0}", Library.Utility.Uri.UrlEncode(items.Last().name));
}
}
public async Task PutAsync(string remotename, string filename, CancellationToken cancelToken)
{
using (FileStream fs = File.OpenRead(filename))
await PutAsync(remotename, fs, cancelToken);
}
public async Task GetAsync(string remotename, string filename, CancellationToken cancelToken)
{
using (FileStream fs = File.Create(filename))
await GetAsync(remotename, fs, cancelToken).ConfigureAwait(false);
}
public async Task DeleteAsync(string remotename, CancellationToken cancelToken)
{
var url = JoinUrls(await GetSimpleStorageEndPoint(cancelToken).ConfigureAwait(false), m_container, Library.Utility.Uri.UrlPathEncode(m_prefix + remotename));
await Utility.Utility.WithTimeout(m_timeouts.ShortTimeout, cancelToken, ct => m_helper.ReadJSONResponseAsync<object>(url, ct, null, "DELETE")).ConfigureAwait(false);
}
public Task TestAsync(CancellationToken cancelToken)
=> this.TestListAsync(cancelToken);
public async Task CreateFolderAsync(CancellationToken cancelToken)
{
var url = JoinUrls(await GetSimpleStorageEndPoint(cancelToken).ConfigureAwait(false), m_container);
using (await Utility.Utility.WithTimeout(m_timeouts.ShortTimeout, cancelToken, ct => m_helper.GetResponseAsync(url, cancelToken, null, "PUT")).ConfigureAwait(false))
{ }
}
public string DisplayName => Strings.OpenStack.DisplayName;
public string ProtocolKey => "openstack";
public IList<ICommandLineArgument> SupportedCommands
{
get
{
var authuris = new StringBuilder();
foreach (var s in KNOWN_OPENSTACK_PROVIDERS)
authuris.AppendLine(string.Format("{0}: {1}", s.Key, s.Value));
return [
new CommandLineArgument(DOMAINNAME_OPTION, CommandLineArgument.ArgumentType.String, Strings.OpenStack.DomainnameOptionShort, Strings.OpenStack.DomainnameOptionLong),
new CommandLineArgument(AuthOptionsHelper.AuthUsernameOption, CommandLineArgument.ArgumentType.String, Strings.OpenStack.UsernameOptionShort, Strings.OpenStack.UsernameOptionLong),
new CommandLineArgument(AuthOptionsHelper.AuthPasswordOption, CommandLineArgument.ArgumentType.Password, Strings.OpenStack.PasswordOptionShort, Strings.OpenStack.PasswordOptionLong(TENANTNAME_OPTION)),
new CommandLineArgument(TENANTNAME_OPTION, CommandLineArgument.ArgumentType.String, Strings.OpenStack.TenantnameOptionShort, Strings.OpenStack.TenantnameOptionLong),
new CommandLineArgument(APIKEY_OPTION, CommandLineArgument.ArgumentType.Password, Strings.OpenStack.ApikeyOptionShort, Strings.OpenStack.ApikeyOptionLong),
new CommandLineArgument(AUTHURI_OPTION, CommandLineArgument.ArgumentType.String, Strings.OpenStack.AuthuriOptionShort, Strings.OpenStack.AuthuriOptionLong(authuris.ToString())),
new CommandLineArgument(VERSION_OPTION, CommandLineArgument.ArgumentType.String, Strings.OpenStack.VersionOptionShort, Strings.OpenStack.VersionOptionLong),
new CommandLineArgument(REGION_OPTION, CommandLineArgument.ArgumentType.String, Strings.OpenStack.RegionOptionShort, Strings.OpenStack.RegionOptionLong),
.. TimeoutOptionsHelper.GetOptions(),
];
}
}
public string Description => Strings.OpenStack.Description;
public Task<string[]> GetDNSNamesAsync(CancellationToken cancelToken) => Task.FromResult(new[] {
new System.Uri(m_authUri).Host,
string.IsNullOrWhiteSpace(m_simplestorageendpoint) ? null : new System.Uri(m_simplestorageendpoint).Host
}
.WhereNotNullOrWhiteSpace()
.ToArray());
#endregion
#region IDisposable implementation
public void Dispose()
{
}
#endregion
}
}