+#region
+/* -----------------------------------------------------------------------
+ * <copyright file="ObjectInfo.cs" company="GRNet">
+ *
+ * Copyright 2011-2012 GRNET S.A. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ *
+ * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and
+ * documentation are those of the authors and should not be
+ * interpreted as representing official policies, either expressed
+ * or implied, of GRNET S.A.
+ * </copyright>
+ * -----------------------------------------------------------------------
+ */
+#endregion
using System;
using System.Collections.Generic;
+using System.Diagnostics;
+using System.Diagnostics.Contracts;
+using System.Dynamic;
using System.Globalization;
using System.IO;
+using System.Linq;
+using System.Text;
+using Newtonsoft.Json;
namespace Pithos.Interfaces
{
- public class ObjectInfo
+ [DebuggerDisplay("Name {Name}")]
+ public class ObjectInfo//:DynamicObject
{
+ private readonly List<string> _knownContainers= new List<string>{"trash"};
public string Name { get; set; }
+
+ public string ETag { get; set; }
+
public string Hash { get; set; }
+
+ public string X_Object_Hash { get { return Hash; } set { Hash = value; } }
+
+ [JsonProperty("x_object_uuid")]
+ public string UUID { get; set; }
+
public long Bytes { get; set; }
public string Content_Type { get; set; }
public DateTime Last_Modified { get; set; }
ExtractKnownExtensions();
}
}
+
+
+ private Dictionary<string, string> _permissions=new Dictionary<string, string>();
+ [JsonProperty("x_object_sharing")]
+ [JsonConverter(typeof(PermissionConverter))]
+ public Dictionary<string, string> Permissions
+ {
+ get { return _permissions; }
+ set
+ {
+ _permissions = value;
+ }
+ }
+ /// <summary>
+ /// Version number
+ /// </summary>
+ [JsonProperty("x_object_version")]
public long? Version { get; set; }
- public DateTime? VersionTimeStamp { get; set; }
+
+
+ /// <summary>
+ /// Shared object permissions can be Read or Write
+ /// </summary>
+ [JsonProperty("x_object_allowed_to")]
+ public string AllowedTo { get; set; }
+
+
+ /// <summary>
+ /// Version timestamp
+ /// </summary>
+ [JsonProperty("X_Object_Version_Timestamp"), JsonConverter(typeof(PithosDateTimeConverter))]
+ public DateTime? VersionTimestamp { get; set; }
+
+ [JsonProperty("X_Object_Modified_By")]
+ public string ModifiedBy { get; set; }
+
public Stream Stream { get; set; }
+ public Uri StorageUri { get; set; }
+
+ public string Account { get; set; }
+
+ public string Container { get; set; }
+
+ public Uri Uri
+ {
+ get
+ {
+ var relativeUrl=String.Format("{0}/{1}/{2}",Account, Container,Name);
+ return StorageUri==null
+ ? new Uri(relativeUrl,UriKind.Relative)
+ : new Uri(StorageUri, relativeUrl);
+ }
+ }
+
+ public string ContendDisposition { get; set; }
+
+ public string ContentEncoding { get; set; }
+
+ public string Manifest { get; set; }
+
+ public bool IsPublic
+ {
+ get { return !String.IsNullOrWhiteSpace(PublicUrl); }
+ set
+ {
+ if (!value)
+ PublicUrl = null;
+ else if (String.IsNullOrWhiteSpace(PublicUrl))
+ PublicUrl="true";
+ }
+ }
+
+ [JsonProperty("X_Object_Public")]
+ public string PublicUrl { get; set; }
+
+ public string PreviousHash { get; set; }
+
+ public ObjectInfo()
+ {}
+
+ public ObjectInfo(string accountPath,string accountName,FileSystemInfo fileInfo)
+ {
+ if (String.IsNullOrWhiteSpace(accountPath))
+ throw new ArgumentNullException("accountPath");
+ if (string.IsNullOrWhiteSpace(accountName))
+ throw new ArgumentNullException("accountName");
+ if (fileInfo == null)
+ throw new ArgumentNullException("fileInfo");
+ Contract.EndContractBlock();
+
+ var relativeUrl = fileInfo.WithProperCapitalization().AsRelativeUrlTo(accountPath);
+ //The first part of the URL is the container
+ var slashIndex = relativeUrl.IndexOf('/');
+ var container = relativeUrl.Substring(0, slashIndex);
+ //The second is the file's url relative to the container
+ var fileUrl = relativeUrl.Substring(slashIndex + 1);
+
+ Account = accountName;
+ Container = container;
+ Name = fileUrl;
+ }
+
+
private void ExtractKnownExtensions()
{
- Version=GetLong("X-Object-Version");
- VersionTimeStamp = GetTimestamp("X-Object-Version-TimeStamp");
+ Version=GetLong(KnownExtensions.X_Object_Version);
+ VersionTimestamp = GetTimestamp(KnownExtensions.X_Object_Version_Timestamp);
+ ModifiedBy = GetString(KnownExtensions.X_Object_Modified_By);
}
+ private string GetString(string name)
+ {
+ string value;
+ _extensions.TryGetValue(name, out value);
+ return value ;
+ }
+
private long? GetLong(string name)
{
string version;
long value;
- if (_extensions.TryGetValue(name, out version) && long.TryParse(version, out value))
- {
- return value;
- }
- return null;
+ return _extensions.TryGetValue(name, out version) && long.TryParse(version, out value)
+ ? (long?) value
+ : null;
}
private DateTime? GetTimestamp(string name)
Hash = String.Empty,
Bytes = 0,
Content_Type = String.Empty,
- Last_Modified = DateTime.MinValue
+ Last_Modified = DateTime.MinValue,
+ Exists=false
};
+
+ private bool _exists=true;
+
+ public bool Exists
+ {
+ get {
+ return _exists;
+ }
+ set {
+ _exists = value;
+ }
+ }
+
+
+ public string RelativeUrlToFilePath(string currentAccount)
+ {
+ if (Name==null)
+ throw new InvalidOperationException("Name can't be null");
+ if (String.IsNullOrWhiteSpace(currentAccount))
+ throw new ArgumentNullException("currentAccount");
+ Contract.EndContractBlock();
+
+ if (this == Empty)
+ return String.Empty;
+
+ var unescaped = Uri.UnescapeDataString(Name);
+ var path = unescaped.Replace("/", "\\");
+ var pathParts=new Stack<string>();
+ pathParts.Push(path);
+ if (!String.IsNullOrWhiteSpace(Container) && !_knownContainers.Contains(Container))
+ pathParts.Push(Container);
+ if (!currentAccount.Equals(Account, StringComparison.InvariantCultureIgnoreCase))
+ {
+ if (Account != null)
+ {
+ pathParts.Push(Account);
+ pathParts.Push(FolderConstants.OthersFolder);
+ }
+ }
+ var finalPath=Path.Combine(pathParts.ToArray());
+ return finalPath;
+ }
+
+/*
+ public override bool TrySetMember(SetMemberBinder binder, object value)
+ {
+ if (binder.Name.StartsWith("x_object_meta"))
+ {
+ Tags[binder.Name] = value.ToString();
+ }
+ return false;
+ }
+*/
+
+ public string GetPermissionString()
+ {
+ if (Permissions==null)
+ throw new InvalidOperationException();
+ Contract.EndContractBlock();
+
+ if (Permissions.Count == 0)
+ return "~";
+ var permissionBuilder = new StringBuilder();
+ var groupings = Permissions.GroupBy(pair => pair.Value.Trim(), pair => pair.Key.Trim());
+ foreach (var grouping in groupings)
+ {
+ permissionBuilder.AppendFormat("{0}={1};", grouping.Key, String.Join(",", grouping));
+ }
+ var permissions = Uri.EscapeDataString(permissionBuilder.ToString().Trim(';'));
+ return permissions;
+ }
+
+ public void SetPermissions(string permissions)
+ {
+ if (String.IsNullOrWhiteSpace(permissions))
+ return;
+
+ Permissions = PermissionConverter.ParsePermissions(permissions);
+ }
+
+ //The previous values that correspond to a NoModification object
+ //have the same account, container and possibly the same folder
+ public bool CorrespondsTo(ObjectInfo other)
+ {
+ return other.Account == this.Account
+ && other.Container == this.Container
+ && (this.Name == null || other.Name.StartsWith(this.Name));
+ }
+
+ public bool IsWritable(string account)
+ {
+ //If the Allowed To header has no value, try to determine the Share permissions
+ if (AllowedTo == null)
+ {
+ //If this file has no permissions defined, we can probably write it
+ //This case should occur only when the info comes from a listing of the user's own files
+ if (Permissions == null || Permissions.Count == 0)
+ return true;
+ string perms;
+
+ //Do we have an explicit write share to this account?
+ return Permissions.TryGetValue(account, out perms)
+ && perms.Equals("write",StringComparison.InvariantCultureIgnoreCase);
+
+ }
+ //Otherwise return the permissions specified by AllowedTo
+ return AllowedTo.Equals("write",StringComparison.InvariantCultureIgnoreCase) ;
+ }
+
+ public ObjectInfo Previous { get; private set; }
+
+ public bool IsDirectory
+ {
+ get
+ {
+ if (Content_Type == null)
+ return false;
+ if (Content_Type.StartsWith(@"application/directory",StringComparison.InvariantCultureIgnoreCase))
+ return true;
+ if (Content_Type.StartsWith(@"application/folder",StringComparison.InvariantCultureIgnoreCase))
+ return true;
+ return false;
+ }
+ }
+
+ public Uri AccountKey
+ {
+ get { return new Uri(StorageUri,"../" + Account); }
+ }
+
+ public ObjectInfo SetPrevious(ObjectInfo previous)
+ {
+ Previous = previous;
+ PreviousHash = previous.Hash;
+ return this;
+ }
+
+ public bool? IsShared
+ {
+ get
+ {
+ if (Uri == null || StorageUri == null)
+ return null;
+ var isShared = !Uri.ToString().StartsWith(StorageUri.ToString());
+ return isShared;
+ }
+ }
}
}
\ No newline at end of file