root / trunk / Pithos.Interfaces / ObjectInfo.cs @ 06f11e8b
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using System; |
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using System.Collections.Generic; |
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using System.Diagnostics.Contracts; |
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using System.Dynamic; |
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using System.Globalization; |
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using System.IO; |
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using System.Linq; |
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using System.Text; |
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using Newtonsoft.Json; |
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|
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namespace Pithos.Interfaces |
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{ |
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public class ObjectInfo:DynamicObject |
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{ |
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private readonly List<string> _knownContainers= new List<string>{"trash"}; |
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public string Name { get; set; } |
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public string Hash { get; set; } |
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public string X_Object_Hash { get { return Hash; } set { Hash = value; } } |
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[JsonProperty("x_object_uuid")] |
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public string UUID { get; set; } |
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|
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public long Bytes { get; set; } |
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public string Content_Type { get; set; } |
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public DateTime Last_Modified { get; set; } |
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|
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private Dictionary<string, string> _tags=new Dictionary<string, string>(); |
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public Dictionary<string, string> Tags |
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{ |
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get { return _tags; } |
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set { _tags = value; } |
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} |
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|
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private Dictionary<string, string> _extensions=new Dictionary<string, string>(); |
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public Dictionary<string, string> Extensions |
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{ |
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get { return _extensions; } |
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set |
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{ |
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_extensions = value; |
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ExtractKnownExtensions(); |
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} |
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} |
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private Dictionary<string, string> _permissions=new Dictionary<string, string>(); |
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[JsonProperty("x_object_sharing")] |
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[JsonConverter(typeof(PermissionConverter))] |
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public Dictionary<string, string> Permissions |
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{ |
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get { return _permissions; } |
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set |
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{ |
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_permissions = value; |
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} |
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} |
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|
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/// <summary> |
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/// Version number |
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/// </summary> |
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[JsonProperty("x_object_version")] |
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public long? Version { get; set; } |
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|
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/// <summary> |
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/// Shared object permissions can be Read or Write |
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/// </summary> |
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[JsonProperty("x_object_allowed_to")] |
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public string AllowedTo { get; set; } |
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|
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|
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/// <summary> |
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/// Version timestamp |
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/// </summary> |
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[JsonProperty("X_Object_Version_Timestamp"), JsonConverter(typeof(PithosDateTimeConverter))] |
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public DateTime? VersionTimestamp { get; set; } |
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|
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[JsonProperty("X_Object_Modified_By")] |
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public string ModifiedBy { get; set; } |
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public Stream Stream { get; set; } |
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public string Account { get; set; } |
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public string Container { get; set; } |
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public string ContendDisposition { get; set; } |
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public string ContentEncoding { get; set; } |
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public string Manifest { get; set; } |
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public bool IsPublic |
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{ |
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get { return !String.IsNullOrWhiteSpace(PublicUrl); } |
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set |
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{ |
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if (!value) |
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PublicUrl = null; |
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else if (String.IsNullOrWhiteSpace(PublicUrl)) |
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PublicUrl="true"; |
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} |
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} |
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|
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[JsonProperty("X_Object_Public")] |
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public string PublicUrl { get; set; } |
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|
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public ObjectInfo() |
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{} |
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public ObjectInfo(string accountPath,string accountName,FileInfo fileInfo) |
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{ |
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var relativeUrl = fileInfo.AsRelativeUrlTo(accountPath); |
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//The first part of the URL is the container |
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var slashIndex = relativeUrl.IndexOf('/'); |
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var container = relativeUrl.Substring(0, slashIndex); |
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//The second is the file's url relative to the container |
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var fileUrl = relativeUrl.Substring(slashIndex + 1); |
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|
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Account = accountName; |
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Container = container; |
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Name = fileUrl; |
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} |
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private void ExtractKnownExtensions() |
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{ |
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Version=GetLong(KnownExtensions.X_Object_Version); |
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VersionTimestamp = GetTimestamp(KnownExtensions.X_Object_Version_Timestamp); |
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ModifiedBy = GetString(KnownExtensions.X_Object_Modified_By); |
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} |
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|
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private string GetString(string name) |
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{ |
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string value; |
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_extensions.TryGetValue(name, out value); |
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return value ; |
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} |
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|
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private long? GetLong(string name) |
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{ |
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string version; |
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long value; |
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return _extensions.TryGetValue(name, out version) && long.TryParse(version, out value) |
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? (long?) value |
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: null; |
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} |
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|
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private DateTime? GetTimestamp(string name) |
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{ |
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string version; |
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DateTime value; |
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if (_extensions.TryGetValue(name, out version) && |
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DateTime.TryParse(version,CultureInfo.InvariantCulture,DateTimeStyles.AdjustToUniversal, out value)) |
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{ |
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return value; |
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} |
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return null; |
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} |
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|
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|
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public static ObjectInfo Empty = new ObjectInfo |
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{ |
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Name = String.Empty, |
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Hash = String.Empty, |
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Bytes = 0, |
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Content_Type = String.Empty, |
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Last_Modified = DateTime.MinValue |
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}; |
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|
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public string RelativeUrlToFilePath(string currentAccount) |
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{ |
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if (Name==null) |
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throw new InvalidOperationException("Name can't be null"); |
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if (String.IsNullOrWhiteSpace(currentAccount)) |
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throw new ArgumentNullException("currentAccount"); |
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Contract.EndContractBlock(); |
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|
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if (this == Empty) |
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return String.Empty; |
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var unescaped = Uri.UnescapeDataString(Name); |
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var path = unescaped.Replace("/", "\\"); |
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var pathParts=new Stack<string>(); |
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pathParts.Push(path); |
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if (!String.IsNullOrWhiteSpace(Container) && !_knownContainers.Contains(Container)) |
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pathParts.Push(Container); |
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if (!currentAccount.Equals(Account, StringComparison.InvariantCultureIgnoreCase)) |
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{ |
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if (Account != null) |
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{ |
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pathParts.Push(Account); |
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pathParts.Push("others"); |
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} |
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} |
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var finalPath=Path.Combine(pathParts.ToArray()); |
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return finalPath; |
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} |
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public override bool TrySetMember(SetMemberBinder binder, object value) |
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{ |
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if (binder.Name.StartsWith("x_object_meta")) |
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{ |
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Tags[binder.Name] = value.ToString(); |
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} |
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return false; |
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} |
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public string GetPermissionString() |
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{ |
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if (Permissions==null) |
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throw new InvalidOperationException(); |
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Contract.EndContractBlock(); |
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|
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var permissionBuilder = new StringBuilder(); |
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var groupings = Permissions.GroupBy(pair => pair.Value, pair => pair.Key); |
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foreach (var grouping in groupings) |
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{ |
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permissionBuilder.AppendFormat("{0}={1};", grouping.Key, String.Join(",", grouping)); |
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} |
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var permissions = permissionBuilder.ToString().Trim(';'); |
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return permissions; |
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} |
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|
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public void SetPermissions(string permissions) |
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{ |
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if (String.IsNullOrWhiteSpace(permissions)) |
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return; |
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|
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var permDict=new Dictionary<string, string>(); |
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var perms=permissions.Split(';'); |
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foreach (var perm in perms) |
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{ |
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var permPairs=perm.Split('='); |
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var right = permPairs[0]; |
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var users= permPairs[1].Split(new[]{','},StringSplitOptions.RemoveEmptyEntries); |
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foreach (var user in users) |
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{ |
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permDict[user] = right; |
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} |
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} |
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Permissions = permDict; |
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} |
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} |
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} |