340 lines
12 KiB
C#
340 lines
12 KiB
C#
/*
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*
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* (c) Copyright Ascensio System Limited 2010-2018
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*
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* This program is freeware. You can redistribute it and/or modify it under the terms of the GNU
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* General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html).
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* In accordance with Section 7(a) of the GNU GPL its Section 15 shall be amended to the effect that
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* Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
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*
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* THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR
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* FITNESS FOR A PARTICULAR PURPOSE. For more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
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*
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* You can contact Ascensio System SIA by email at sales@onlyoffice.com
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*
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* The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display
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* Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
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*
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* Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains
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* relevant author attributions when distributing the software. If the display of the logo in its graphic
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* form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE"
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* in every copy of the program you distribute.
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* Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
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*
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*/
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using System;
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using System.ComponentModel;
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using System.Globalization;
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using System.Runtime.Serialization;
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using ASC.Core;
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using Newtonsoft.Json;
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namespace ASC.Api.Core
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{
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[DataContract(Name = "date", Namespace = "")]
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[JsonConverter(typeof(ApiDateTimeConverter))]
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[TypeConverter(typeof(ApiDateTimeTypeConverter))]
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public class ApiDateTime : IComparable<ApiDateTime>, IComparable
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{
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private static readonly string[] Formats = new[]
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{
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"o",
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"yyyy'-'MM'-'dd'T'HH'-'mm'-'ss'.'fffffffK",
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"yyyy'-'MM'-'dd'T'HH'-'mm'-'ss'.'fffK",
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"yyyy'-'MM'-'dd'T'HH':'mm':'ss'.'fffK",
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"yyyy'-'MM'-'dd'T'HH'-'mm'-'ssK",
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"yyyy'-'MM'-'dd'T'HH':'mm':'ssK",
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"yyyy'-'MM'-'dd"
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};
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public ApiDateTime()
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: this(null)
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{
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}
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public ApiDateTime(DateTime? dateTime)
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: this(dateTime, null)
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{
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}
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public ApiDateTime(DateTime? dateTime, TimeZoneInfo timeZone)
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{
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if (dateTime.HasValue && dateTime.Value > DateTime.MinValue && dateTime.Value < DateTime.MaxValue)
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{
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SetDate(dateTime.Value, timeZone);
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}
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else
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{
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UtcTime = DateTime.MinValue;
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TimeZoneOffset = TimeSpan.Zero;
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}
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}
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public ApiDateTime(DateTime utcTime, TimeSpan offset)
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{
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UtcTime = new DateTime(utcTime.Ticks, DateTimeKind.Utc);
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TimeZoneOffset = offset;
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}
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public static ApiDateTime Parse(string data)
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{
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return Parse(data, null);
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}
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public static ApiDateTime Parse(string data, TimeZoneInfo tz)
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{
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if (string.IsNullOrEmpty(data)) throw new ArgumentNullException("data");
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if (data.Length < 7) throw new ArgumentException("invalid date time format");
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var offsetPart = data.Substring(data.Length - 6, 6);
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DateTime dateTime;
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if (DateTime.TryParseExact(data, Formats, CultureInfo.InvariantCulture, DateTimeStyles.AdjustToUniversal, out dateTime))
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{
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//Parse time
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TimeSpan tzOffset = TimeSpan.Zero;
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if (offsetPart.Contains(":") && TimeSpan.TryParse(offsetPart.TrimStart('+'), out tzOffset))
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{
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return new ApiDateTime(dateTime, tzOffset);
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}
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if (!data.EndsWith("Z", true, CultureInfo.InvariantCulture))
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{
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if (tz == null)
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{
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tz = GetTimeZoneInfo();
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}
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tzOffset = tz.GetUtcOffset(dateTime);
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dateTime = dateTime.Subtract(tzOffset);
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}
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return new ApiDateTime(dateTime, tzOffset);
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}
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throw new ArgumentException("invalid date time format: " + data);
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}
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private void SetDate(DateTime value, TimeZoneInfo timeZone)
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{
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TimeZoneOffset = TimeSpan.Zero;
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UtcTime = DateTime.MinValue;
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if (timeZone == null)
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{
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timeZone = GetTimeZoneInfo();
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}
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//Hack
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if (timeZone.IsInvalidTime(new DateTime(value.Ticks, DateTimeKind.Unspecified)))
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{
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value = value.AddHours(1);
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}
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if (value.Kind == DateTimeKind.Local)
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{
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value = TimeZoneInfo.ConvertTimeToUtc(new DateTime(value.Ticks, DateTimeKind.Unspecified), timeZone);
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}
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if (value.Kind == DateTimeKind.Unspecified)
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{
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//Assume it's utc
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value = new DateTime(value.Ticks, DateTimeKind.Utc);
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}
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if (value.Kind == DateTimeKind.Utc)
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{
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UtcTime = value; //Set UTC time
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TimeZoneOffset = timeZone.GetUtcOffset(value);
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}
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}
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private static TimeZoneInfo GetTimeZoneInfo()
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{
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var timeZone = TimeZoneInfo.Local;
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try
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{
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timeZone = CoreContext.TenantManager.GetCurrentTenant().TimeZone;
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}
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catch (Exception)
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{
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//Tenant failed
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}
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return timeZone;
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}
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private string ToRoundTripString(DateTime date, TimeSpan offset)
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{
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var dateString = date.ToString("yyyy'-'MM'-'dd'T'HH':'mm':'ss'.'fffffff", CultureInfo.InvariantCulture);
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var offsetString = offset.Ticks == 0 ? "Z" : ((offset < TimeSpan.Zero) ? "-" : "+") + offset.ToString("hh\\:mm", CultureInfo.InvariantCulture);
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return dateString + offsetString;
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}
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public static explicit operator ApiDateTime(DateTime d)
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{
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var date = new ApiDateTime(d);
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return date;
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}
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public static explicit operator ApiDateTime(DateTime? d)
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{
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if (d.HasValue)
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{
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var date = new ApiDateTime(d);
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return date;
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}
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return null;
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}
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public static bool operator >(ApiDateTime left, ApiDateTime right)
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{
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if (ReferenceEquals(left, right)) return false;
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if (left == null) return false;
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return left.CompareTo(right) > 0;
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}
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public static bool operator >=(ApiDateTime left, ApiDateTime right)
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{
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if (ReferenceEquals(left, right)) return false;
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if (left == null) return false;
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return left.CompareTo(right) >= 0;
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}
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public static bool operator <=(ApiDateTime left, ApiDateTime right)
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{
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return !(left >= right);
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}
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public static bool operator <(ApiDateTime left, ApiDateTime right)
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{
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return !(left > right);
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}
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public static bool operator ==(ApiDateTime left, ApiDateTime right)
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{
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return Equals(left, right);
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}
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public static bool operator !=(ApiDateTime left, ApiDateTime right)
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{
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return !(left == right);
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}
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public static implicit operator DateTime(ApiDateTime d)
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{
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if (d == null) return DateTime.MinValue;
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return d.UtcTime;
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}
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public static implicit operator DateTime?(ApiDateTime d)
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{
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if (d == null) return null;
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return d.UtcTime;
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}
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public int CompareTo(DateTime other)
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{
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return this.CompareTo(new ApiDateTime(other));
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}
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public int CompareTo(ApiDateTime other)
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{
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if (other == null) return 1;
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return UtcTime.CompareTo(other.UtcTime);
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}
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public override bool Equals(object obj)
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{
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if (ReferenceEquals(null, obj)) return false;
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if (ReferenceEquals(this, obj)) return true;
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if (obj.GetType() != typeof(ApiDateTime)) return false;
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return Equals((ApiDateTime)obj);
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}
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public bool Equals(ApiDateTime other)
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{
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if (ReferenceEquals(null, other)) return false;
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if (ReferenceEquals(this, other)) return true;
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return UtcTime.Equals(other.UtcTime) && TimeZoneOffset.Equals(other.TimeZoneOffset);
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}
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public override int GetHashCode()
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{
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unchecked
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{
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return UtcTime.GetHashCode() * 397 + TimeZoneOffset.GetHashCode();
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}
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}
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public int CompareTo(object obj)
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{
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if (obj is DateTime)
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return CompareTo((DateTime)obj);
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return obj is ApiDateTime ? CompareTo((ApiDateTime)obj) : 0;
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}
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public override string ToString()
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{
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DateTime localUtcTime = UtcTime;
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if (!UtcTime.Equals(DateTime.MinValue))
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localUtcTime = UtcTime.Add(TimeZoneOffset);
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return ToRoundTripString(localUtcTime, TimeZoneOffset);
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}
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public DateTime UtcTime { get; private set; }
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public TimeSpan TimeZoneOffset { get; private set; }
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public static ApiDateTime GetSample()
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{
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return new ApiDateTime(DateTime.UtcNow, TimeSpan.Zero);
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}
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}
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public class ApiDateTimeTypeConverter : DateTimeConverter
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{
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public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
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{
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if (destinationType == typeof(string))
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return value.ToString();
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return base.ConvertTo(context, culture, value, destinationType);
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}
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public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
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{
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if (value is string)
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{
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return ApiDateTime.Parse((string)value);
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}
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if (value is DateTime)
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{
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return new ApiDateTime((DateTime)value);
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}
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return base.ConvertFrom(context, culture, value);
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}
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}
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public class ApiDateTimeConverter : JsonConverter
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{
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public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
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{
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if (value is ApiDateTime)
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{
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writer.WriteValue(value.ToString());
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}
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}
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public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
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{
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throw new NotImplementedException();
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}
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public override bool CanConvert(Type objectType)
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{
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return typeof(ApiDateTime).IsAssignableFrom(objectType);
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}
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}
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} |