| public GetRelationships ( ) : PackageRelationshipCollection | ||
| Результат | PackageRelationshipCollection | |
public static int ExtractFiles(string packagefile, string destFolder)
{
//extract the package content to temp folder
string tempfolder = Path.Combine(destFolder,
Path.GetFileNameWithoutExtension(packagefile));
// Path.GetFileNameWithoutExtension(fileFullPath)
if (Directory.Exists(tempfolder))
{
Directory.Delete(tempfolder, true);
//Wait till folder is deleted
Thread.Sleep(1000);
}
Directory.CreateDirectory(tempfolder);
try
{
using (System.IO.Packaging.Package ABpackage = System.IO.Packaging.Package.Open(@packagefile, FileMode.Open, FileAccess.Read, FileShare.Read))
{
PackageRelationshipCollection relationships = ABpackage.GetRelationships();
PackagePartCollection parts = ABpackage.GetParts();
List <ZipEntry> files = GetPackageFile(packagefile);
if (files.Count() - 1 != parts.Count()) //[Content_Types].xml is not considered as file part
{
if (files.Count() - 1 > parts.Count())
{
Console.WriteLine(String.Format("Package {0} is corrupt. Additional files found", packagefile));
return(-1);
}
else if (files.Count() - 1 < parts.Count())
{
Console.WriteLine(String.Format("Package {0} is corrupt. Some files are missing", packagefile));
return(-1);
}
}
List <PackagePart> originalParts = new List <PackagePart>();
foreach (PackagePart item in parts)
{
if ((item.ContentType == "application/vnd.openxmlformats-package.relationships+xml") ||
(item.ContentType == "application/vnd.openxmlformats-package.digital-signature-origin") ||
(item.ContentType == "application/vnd.openxmlformats-package.digital-signature-xmlsignature+xml"))
{
}
else
{
originalParts.Add(item);
}
}
//if (originalParts.Count != relationships.Count() - 1)
//{
// if (originalParts.Count > relationships.Count() - 1)
// {
// // ErrorBase.WriteToLog(String.Format("Package {0} is corrupt. Additional files found", packagefile));
// return -1;
// }
// else if (originalParts.Count > relationships.Count() - 1)
// {
// //ErrorBase.WriteToLog(String.Format("Package {0} is corrupt. Some files are missing", packagefile));
// return -1;
// }
//}
foreach (PackageRelationship rel in relationships)
{
PackagePart packagePart = ABpackage.GetPart(rel.TargetUri);
if (!packagePart.ContentType.Contains("part/"))
{
continue;
}
string lastModified = String.Empty;
ZipEntry entry = files.Find(e => e.Name.Equals(packagePart.Uri.ToString().TrimStart('/'), StringComparison.InvariantCultureIgnoreCase));
if (entry == null)
{
continue;
}
//prepare file path information
string partRelativePath = Uri.UnescapeDataString(packagePart.Uri.ToString());
//partRelativePath = (partRelativePath.TrimStart('/')).Replace("%20", " ");
//partRelativePath = partRelativePath.Replace("%7b", "{");
//partRelativePath = partRelativePath.Replace("%7d", "}");
//partRelativePath = partRelativePath.Replace("%7B", "{");
//partRelativePath = partRelativePath.Replace("%7D", "}");
//partRelativePath = partRelativePath.Replace("%C2%A0", " ");
//partRelativePath = partRelativePath.Replace("%C3%84", "Ä");
//partRelativePath = partRelativePath.Replace("%C3%A4", "ä");
//partRelativePath = partRelativePath.Replace("%C3%96", "Ö");
//partRelativePath = partRelativePath.Replace("%C3%B6", "ö");
//partRelativePath = partRelativePath.Replace("%C3%9C", "Ü");
//partRelativePath = partRelativePath.Replace("%C3%BC", "ü");
//partRelativePath = partRelativePath.Replace("%C3%9F", "ß");
//partRelativePath = partRelativePath.Replace("/", "\\");
string absolutePath = Path.Combine(tempfolder, partRelativePath.TrimStart('/'));
if (!Directory.Exists(Path.GetDirectoryName(absolutePath)))
{
Directory.CreateDirectory(Path.GetDirectoryName(absolutePath));
}
FileInfo extractFileInfo = new FileInfo(absolutePath);
//Hp --> Logic: Check if the zip entry is older than the file system version
//if yes don't overwrite the file system version.
if ((extractFileInfo.Exists) &&
(DateTime.Compare(extractFileInfo.LastWriteTime, entry.DateTime) >= 0))
{
continue;
}
// Create the file with the Part content
using (FileStream fileStream = new FileStream(absolutePath, FileMode.Create))
{
//ErrorBase.WriteToLog("Extracting file: " + absolutePath);
try
{
packagePart.GetStream().CopyTo(fileStream);
}
catch (Exception ex)
{
//ErrorBase.WriteToLog(ex.Message);
return(1);
}
}
extractFileInfo.Refresh();
//Hp --> Always remove ReadOnly file attribute
extractFileInfo.Attributes &= ~FileAttributes.ReadOnly;
//set creation and modification date to zipped file date
extractFileInfo.CreationTime = entry.DateTime;
extractFileInfo.LastWriteTime = entry.DateTime;
}
}
return(1);
}
catch (Exception ex)
{
//ErrorBase.WriteToLog(packagefile + "extraction encountered an exception." + ex.Message);
//ErrorBase.WriteToLog("Cleanup extracted files / folders...");
if (Directory.Exists(tempfolder))
{
Directory.Delete(tempfolder, true);
//Wait till folder is deleted
Thread.Sleep(1000);
}
return(-1);
}
}