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C# ZipHelperStream.ReadDataDescriptor方法代码示例

本文整理汇总了C#中ICSharpCode.SharpZipLib.Zip.ZipHelperStream.ReadDataDescriptor方法的典型用法代码示例。如果您正苦于以下问题:C# ZipHelperStream.ReadDataDescriptor方法的具体用法?C# ZipHelperStream.ReadDataDescriptor怎么用?C# ZipHelperStream.ReadDataDescriptor使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在ICSharpCode.SharpZipLib.Zip.ZipHelperStream的用法示例。


在下文中一共展示了ZipHelperStream.ReadDataDescriptor方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: TestArchive

		/// <summary>
		/// Test an archive for integrity/validity
		/// </summary>
		/// <param name="testData">Perform low level data Crc check</param>
		/// <param name="strategy">The <see cref="TestStrategy"></see> to apply.</param>
		/// <param name="resultHandler">The <see cref="ZipTestResultHandler"></see> handler to call during testing.</param>
		/// <returns>true if all tests pass, false otherwise</returns>
		/// <exception cref="ObjectDisposedException">The object has already been closed.</exception>
		public bool TestArchive(bool testData, TestStrategy strategy, ZipTestResultHandler resultHandler)
		{
			if (isDisposed_) {
				throw new ObjectDisposedException("ZipFile");
			}
			
			TestStatus status = new TestStatus(this);

			if ( resultHandler != null ) {
				resultHandler(status, null);
			}

			HeaderTest test = testData ? (HeaderTest.Header | HeaderTest.Extract) : HeaderTest.Header;

			bool testing = true;

			try {
				int entryIndex = 0;

				while ( testing && (entryIndex < Count) ) {
					if ( resultHandler != null ) {
						status.SetEntry(this[entryIndex]);
						status.SetOperation(TestOperation.EntryHeader);
						resultHandler(status, null);
					}

					try	{
						TestLocalHeader(this[entryIndex], test);
					}
					catch(ZipException ex) {
						status.AddError();

						if ( resultHandler != null ) {
							resultHandler(status,
								string.Format("Exception during test - '{0}'", ex.Message));
						}

						if ( strategy == TestStrategy.FindFirstError ) {
							testing = false; 
						}
					}

					if ( testing && testData && this[entryIndex].IsFile ) {
						if ( resultHandler != null ) {
							status.SetOperation(TestOperation.EntryData);
							resultHandler(status, null);
						}

                        Crc32 crc = new Crc32();

                        using (Stream entryStream = this.GetInputStream(this[entryIndex]))
                        {

                            byte[] buffer = new byte[4096];
                            long totalBytes = 0;
                            int bytesRead;
                            while ((bytesRead = entryStream.Read(buffer, 0, buffer.Length)) > 0)
                            {
                                crc.Update(buffer, 0, bytesRead);

                                if (resultHandler != null)
                                {
                                    totalBytes += bytesRead;
                                    status.SetBytesTested(totalBytes);
                                    resultHandler(status, null);
                                }
                            }
                        }

						if (this[entryIndex].Crc != crc.Value) {
							status.AddError();
							
							if ( resultHandler != null ) {
								resultHandler(status, "CRC mismatch");
							}

							if ( strategy == TestStrategy.FindFirstError ) {
								testing = false;
							}
						}

						if (( this[entryIndex].Flags & (int)GeneralBitFlags.Descriptor) != 0 ) {
							ZipHelperStream helper = new ZipHelperStream(baseStream_);
							DescriptorData data = new DescriptorData();
							helper.ReadDataDescriptor(this[entryIndex].LocalHeaderRequiresZip64, data);
							if (this[entryIndex].Crc != data.Crc) {
								status.AddError();
							}

							if (this[entryIndex].CompressedSize != data.CompressedSize) {
								status.AddError();
							}
//.........这里部分代码省略.........
开发者ID:jamesbascle,项目名称:SharpZipLib,代码行数:101,代码来源:ZipFile.cs

示例2: TestArchive

 public bool TestArchive(bool testData, TestStrategy strategy, ZipTestResultHandler resultHandler)
 {
     if (this.isDisposed_)
     {
         throw new ObjectDisposedException("ZipFile");
     }
     TestStatus status = new TestStatus(this);
     if (resultHandler != null)
     {
         resultHandler(status, null);
     }
     HeaderTest tests = testData ? (HeaderTest.Header | HeaderTest.Extract) : HeaderTest.Header;
     bool flag = true;
     try
     {
         for (int i = 0; flag && (i < this.Count); i++)
         {
             if (resultHandler != null)
             {
                 status.SetEntry(this[i]);
                 status.SetOperation(TestOperation.EntryHeader);
                 resultHandler(status, null);
             }
             try
             {
                 this.TestLocalHeader(this[i], tests);
             }
             catch (ZipException exception)
             {
                 status.AddError();
                 if (resultHandler != null)
                 {
                     resultHandler(status, string.Format("Exception during test - '{0}'", exception.Message));
                 }
                 if (strategy == TestStrategy.FindFirstError)
                 {
                     flag = false;
                 }
             }
             if ((flag && testData) && this[i].IsFile)
             {
                 if (resultHandler != null)
                 {
                     status.SetOperation(TestOperation.EntryData);
                     resultHandler(status, null);
                 }
                 Crc32 crc = new Crc32();
                 using (Stream stream = this.GetInputStream(this[i]))
                 {
                     int num3;
                     byte[] buffer = new byte[0x1000];
                     long num2 = 0L;
                     while ((num3 = stream.Read(buffer, 0, buffer.Length)) > 0)
                     {
                         crc.Update(buffer, 0, num3);
                         if (resultHandler != null)
                         {
                             num2 += num3;
                             status.SetBytesTested(num2);
                             resultHandler(status, null);
                         }
                     }
                 }
                 if (this[i].Crc != crc.Value)
                 {
                     status.AddError();
                     if (resultHandler != null)
                     {
                         resultHandler(status, "CRC mismatch");
                     }
                     if (strategy == TestStrategy.FindFirstError)
                     {
                         flag = false;
                     }
                 }
                 if ((this[i].Flags & 8) != 0)
                 {
                     ZipHelperStream stream2 = new ZipHelperStream(this.baseStream_);
                     DescriptorData data = new DescriptorData();
                     stream2.ReadDataDescriptor(this[i].LocalHeaderRequiresZip64, data);
                     if (this[i].Crc != data.Crc)
                     {
                         status.AddError();
                     }
                     if (this[i].CompressedSize != data.CompressedSize)
                     {
                         status.AddError();
                     }
                     if (this[i].Size != data.Size)
                     {
                         status.AddError();
                     }
                 }
             }
             if (resultHandler != null)
             {
                 status.SetOperation(TestOperation.EntryComplete);
                 resultHandler(status, null);
             }
         }
//.........这里部分代码省略.........
开发者ID:huaminglee,项目名称:myyyyshop,代码行数:101,代码来源:ZipFile.cs


注:本文中的ICSharpCode.SharpZipLib.Zip.ZipHelperStream.ReadDataDescriptor方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。