/// <summary>
/// Reads a message from a message file.
/// </summary>
/// <param name="msgID">The message ID.</param>
/// <param name="path">The file path.</param>
/// <returns>A <see cref="QueuedMsg" />.</returns>
internal QueuedMsg ReadMessage(Guid msgID, string path)
{
QueuedMsgInfo msgInfo;
byte[] body;
byte[] md5Hash;
long savePos;
using (var fsMsg = new EnhancedFileStream(path, FileMode.Open, FileAccess.ReadWrite))
{
try
{
// Read the message file header
if (fsMsg.ReadInt32() != MsgMagic) // Magic Number
{
throw new Exception();
}
if (fsMsg.ReadInt32() != 0) // Format Version
{
throw new Exception();
}
fsMsg.ReadInt32(); // Reserved
// Verify that the MD5 hash saved in then file matches the
// hash computed for the remainder of the file as it exists
// right now.
md5Hash = fsMsg.ReadBytes(MD5Hasher.DigestSize);
savePos = fsMsg.Position;
if (!Helper.ArrayEquals(md5Hash, MD5Hasher.Compute(fsMsg, fsMsg.Length - fsMsg.Position)))
{
throw new FormatException(string.Format("Message file [{0}] is corrupt. MD5 digests do not match.", path));
}
fsMsg.Position = savePos;
// Read the message body
body = fsMsg.ReadBytes32();
// Read the metadata and add the provider specific information
msgInfo = new QueuedMsgInfo(fsMsg.ReadString16());
msgInfo.PersistID = msgInfo.ID;
msgInfo.ProviderData = path;
if (msgID != msgInfo.ID)
{
throw new FormatException("Message ID does not match the metadata.");
}
return(new QueuedMsg(msgInfo, body, false));
}
catch
{
throw new FormatException(string.Format("Bad message file [{0}].", path));
}
}
}
public void Package_AddFile()
{
Package package;
EnhancedStream fs;
EnhancedMemoryStream es = new EnhancedMemoryStream();
PackageEntry entry;
byte[] buf;
string inputFile;
string outputFile;
inputFile = Path.GetTempFileName();
outputFile = Path.GetTempFileName();
try
{
buf = new byte[37000];
for (int i = 0; i < buf.Length; i++)
{
buf[i] = (byte)i;
}
fs = new EnhancedFileStream(inputFile, FileMode.OpenOrCreate);
fs.WriteBytes32(buf);
fs.Close();
//-------------------------
package = new Package();
package.Create(es);
entry = package.AddFile("/Foo/Bar/Test1.dat", inputFile);
Assert.IsTrue(entry.IsFile);
Assert.IsTrue(package["/Foo"].IsFolder);
Assert.IsTrue(package["/Foo/Bar"].IsFolder);
Assert.IsTrue(package["/Foo/Bar/Test1.dat"].IsFile);
package.Close(true);
//-------------------------
package = new Package(es);
Assert.IsTrue(entry.IsFile);
Assert.IsTrue(package["/Foo"].IsFolder);
Assert.IsTrue(package["/Foo/Bar"].IsFolder);
Assert.IsTrue(package["/Foo/Bar/Test1.dat"].IsFile);
package["/Foo/Bar/Test1.dat"].GetContents(outputFile);
fs = new EnhancedFileStream(outputFile, FileMode.Open);
try
{
CollectionAssert.AreEqual(buf, fs.ReadBytes32());
}
finally
{
fs.Close();
}
package.Close();
}
finally
{
File.Delete(inputFile);
File.Delete(outputFile);
}
}