public void CabLib_CabExtract_4()
{
string compPath = Path.Combine(TestHelper.BaseDir, "ex4.cab");
string decompDir = Path.Combine(TestHelper.DestDir, "ex4");
using (FileStream fs = new FileStream(compPath, FileMode.Open, FileAccess.Read, FileShare.Read))
using (CabExtract cab = new CabExtract(fs))
{
Assert.IsTrue(cab.ExtractAll(decompDir, out List <string> fileList));
Assert.IsTrue(fileList.Count == 3);
Assert.IsTrue(fileList.Contains("ex1.jpg"));
Assert.IsTrue(fileList.Contains("ex2.jpg"));
Assert.IsTrue(fileList.Contains("ex3.jpg"));
}
// Compare SHA256 Digest
byte[] originDigest1 = TestHelper.SHA256Digest(Path.Combine(TestHelper.BaseDir, "ex1.jpg"));
byte[] decompDigest1 = TestHelper.SHA256Digest(Path.Combine(decompDir, "ex1.jpg"));
Assert.IsTrue(decompDigest1.SequenceEqual(originDigest1));
byte[] originDigest2 = TestHelper.SHA256Digest(Path.Combine(TestHelper.BaseDir, "ex2.jpg"));
byte[] decompDigest2 = TestHelper.SHA256Digest(Path.Combine(decompDir, "ex2.jpg"));
Assert.IsTrue(decompDigest2.SequenceEqual(originDigest2));
byte[] originDigest3 = TestHelper.SHA256Digest(Path.Combine(TestHelper.BaseDir, "ex3.jpg"));
byte[] decompDigest3 = TestHelper.SHA256Digest(Path.Combine(decompDir, "ex3.jpg"));
Assert.IsTrue(decompDigest3.SequenceEqual(originDigest3));
}
public void CabLib_CabExtract_2()
{
string originPath = Path.Combine(TestHelper.BaseDir, "ex2.jpg");
string compPath = Path.Combine(TestHelper.BaseDir, "ex2.cab");
string decompDir = Path.Combine(TestHelper.DestDir, "ex2");
using (FileStream fs = new FileStream(compPath, FileMode.Open, FileAccess.Read, FileShare.Read))
using (CabExtract cab = new CabExtract(fs))
{
Assert.IsFalse(cab.ExtractSingleFile("ex3.jpg", decompDir)); // ex3.jpg does not exist in ex2.cab
Assert.IsTrue(cab.ExtractSingleFile("ex2.jpg", decompDir));
}
// Compare SHA256 Digest
byte[] originDigest = TestHelper.SHA256Digest(originPath);
byte[] decompDigest = TestHelper.SHA256Digest(Path.Combine(decompDir, "ex2.jpg"));
Assert.IsTrue(decompDigest.SequenceEqual(originDigest));
}
private static void InternalCopyOrExpand(EngineState s, List <LogInfo> logs, CodeInfo_CopyOrExpand info, string srcFile, string destPath)
{
string srcFileName = Path.GetFileName(srcFile);
bool destIsDir = Directory.Exists(destPath);
bool destIsFile = File.Exists(destPath);
if (!destIsDir)
{
if (destIsFile)
{
if (info.Preserve)
{
logs.Add(new LogInfo(info.NoWarn ? LogState.Ignore : LogState.Warning, $"Cannot overwrite [{destPath}]"));
return;
}
else
{
logs.Add(new LogInfo(info.NoWarn ? LogState.Ignore : LogState.Warning, $"[{destPath}] will be overwritten"));
}
}
}
if (File.Exists(srcFile))
{ // SrcFile is uncompressed, just copy!
string destFullPath = destPath;
if (destIsDir)
{
destFullPath = Path.Combine(destPath, srcFileName);
}
else if (!destIsFile)
{
Directory.CreateDirectory(FileHelper.GetDirNameEx(destPath));
}
File.Copy(srcFile, destFullPath, !info.Preserve);
logs.Add(new LogInfo(LogState.Success, $"[{srcFile}] copied to [{destPath}]"));
}
else
{ // Extract Cabinet from _ (Ex) EXPLORER.EX_ -> EXPLORER.EXE
string destDir;
if (destIsDir)
{
destDir = destPath;
}
else
{
destDir = Path.GetDirectoryName(destPath);
}
string srcCab = srcFile.Substring(0, srcFile.Length - 1) + "_";
if (File.Exists(srcCab))
{
// Get Temp Dir
string tempDir;
{
string tempDirName = Path.GetTempFileName();
File.Delete(tempDirName);
tempDir = Path.Combine(Path.GetTempPath(), tempDirName);
}
Directory.CreateDirectory(tempDir);
try
{
bool result;
using (FileStream fs = new FileStream(srcCab, FileMode.Open, FileAccess.Read, FileShare.Read))
using (CabExtract cab = new CabExtract(fs))
{
result = cab.ExtractAll(tempDir, out List <string> fileList);
if (2 < fileList.Count)
{ // WB082 behavior : Expand/CopyOrExpand only supports single-file cabinet
logs.Add(new LogInfo(LogState.Error, $"Cabinet [{srcFileName}] should contain single file"));
return;
}
}
if (result)
{ // Extract Success
string tempFullPath = Path.Combine(tempDir, srcFileName);
if (File.Exists(tempFullPath))
{
string destFullPath;
if (destIsDir)
{
destFullPath = Path.Combine(destDir, srcFileName);
}
else // Move to new name
{
destFullPath = Path.Combine(destDir, Path.GetFileName(destPath));
}
if (File.Exists(destFullPath))
{
logs.Add(new LogInfo(LogState.Warning, $"File [{destFullPath}] already exists, will be overwritten"));
}
try
{
if (!Directory.Exists(Path.GetDirectoryName(destFullPath)))
{
Directory.CreateDirectory(Path.GetDirectoryName(destFullPath));
}
File.Copy(tempFullPath, destFullPath, true);
logs.Add(new LogInfo(LogState.Success, $"[{srcFileName}] from [{srcCab}] extracted to [{destFullPath}]"));
}
finally
{
File.Delete(tempFullPath);
}
}
else
{ // Unable to find srcFile
logs.Add(new LogInfo(LogState.Error, $"Cabinet [{srcFileName}] does not contains [{Path.GetFileName(destPath)}]"));
}
}
else
{ // Extract Fail
logs.Add(new LogInfo(LogState.Error, $"Failed to extract [{srcCab}]"));
}
}
finally
{
Directory.Delete(tempDir, true);
}
}
else
{ // Error
logs.Add(new LogInfo(LogState.Error, $"[{srcFile}] nor [{srcCab}] not found"));
}
}
}
