public static StorageRoot Decode(G2Header header)
{
StorageRoot root = new StorageRoot();
G2Header child = new G2Header(header.Data);
while (G2Protocol.ReadNextChild(header, child) == G2ReadResult.PACKET_GOOD)
{
if (!G2Protocol.ReadPayload(child))
{
continue;
}
switch (child.Name)
{
case Packet_Project:
root.ProjectID = BitConverter.ToUInt32(child.Data, child.PayloadPos);
break;
}
}
return(root);
}
private void LoadHeaderFile(string path, OpStorage storage, bool reload, bool working)
{
try
{
if (!File.Exists(path))
{
return;
}
bool cached = Network.Routing.InCacheArea(storage.UserID);
bool local = false;
byte[] key = working ? LocalFileKey : storage.File.Header.FileKey;
using (TaggedStream filex = new TaggedStream(path, Network.Protocol))
using (IVCryptoStream crypto = IVCryptoStream.Load(filex, key))
{
PacketStream stream = new PacketStream(crypto, Protocol, FileAccess.Read);
G2Header header = null;
ulong currentUID = 0;
while (stream.ReadPacket(ref header))
{
if (!working && header.Name == StoragePacket.Root)
{
StorageRoot packet = StorageRoot.Decode(header);
local = Core.UserID == storage.UserID ||
GetHigherRegion(Core.UserID, packet.ProjectID).Contains(storage.UserID) ||
Trust.GetDownlinkIDs(Core.UserID, packet.ProjectID, 1).Contains(storage.UserID);
}
if (header.Name == StoragePacket.File)
{
StorageFile packet = StorageFile.Decode(header);
if (packet == null)
{
continue;
}
bool historyFile = true;
if (packet.UID != currentUID)
{
historyFile = false;
currentUID = packet.UID;
}
OpFile file = null;
if (!FileMap.SafeTryGetValue(packet.HashID, out file))
{
file = new OpFile(packet);
FileMap.SafeAdd(packet.HashID, file);
}
InternalFileMap.SafeAdd(packet.InternalHashID, file);
if (!reload)
{
file.References++;
}
if (!working) // if one ref is public, then whole file is marked public
{
file.Working = false;
}
if (packet.HashID == 0 || packet.InternalHash == null)
{
Debug.Assert(false);
continue;
}
string filepath = GetFilePath(packet.HashID);
file.Downloaded = File.Exists(filepath);
if (Loading && file.Downloaded && !ReferencedPaths.Contains(filepath))
{
ReferencedPaths.Add(filepath);
}
if (!file.Downloaded)
{
// if in local range only store latest
if (local && !historyFile)
{
DownloadFile(storage.UserID, packet);
}
// if storage is in cache range, download all files
else if (Network.Established && cached)
{
DownloadFile(storage.UserID, packet);
}
}
// on link update, if in local range, get latest files
// (handled by location update, when it sees a new version of storage component is available)
}
}
}
}
catch (Exception ex)
{
Core.Network.UpdateLog("Storage", "Error loading files " + ex.Message);
}
}
public void SaveLocal(uint project)
{
try
{
string tempPath = Core.GetTempPath();
byte[] key = Utilities.GenerateKey(Core.StrongRndGen, 256);
using (IVCryptoStream stream = IVCryptoStream.Save(tempPath, key))
{
// write loaded projects
WorkingStorage working = null;
if (Working.ContainsKey(project))
{
working = Working[project];
}
if (working != null)
{
Protocol.WriteToFile(new StorageRoot(working.ProjectID), stream);
working.WriteWorkingFile(stream, working.RootFolder, true);
working.Modified = false;
try { File.Delete(GetWorkingPath(project)); }
catch { }
}
// open old file and copy entries, except for working
OpStorage local = GetStorage(Core.UserID);
if (local != null)
{
string oldPath = GetFilePath(local);
if (File.Exists(oldPath))
{
using (TaggedStream file = new TaggedStream(oldPath, Network.Protocol))
using (IVCryptoStream crypto = IVCryptoStream.Load(file, local.File.Header.FileKey))
{
PacketStream oldStream = new PacketStream(crypto, Protocol, FileAccess.Read);
bool write = false;
G2Header g2header = null;
while (oldStream.ReadPacket(ref g2header))
{
if (g2header.Name == StoragePacket.Root)
{
StorageRoot root = StorageRoot.Decode(g2header);
write = (root.ProjectID != project);
}
//copy packet right to new file
if (write) //crit test
{
stream.Write(g2header.Data, g2header.PacketPos, g2header.PacketSize);
}
}
}
}
}
stream.WriteByte(0); // signal last packet
stream.FlushFinalBlock();
}
SavingLocal = true; // prevents auto-integrate from re-calling saveLocal
OpVersionedFile vfile = Cache.UpdateLocal(tempPath, key, BitConverter.GetBytes(Core.TimeNow.ToUniversalTime().ToBinary()));
SavingLocal = false;
Store.PublishDirect(Core.Trust.GetLocsAbove(), Core.UserID, ServiceID, FileTypeCache, vfile.SignedHeader);
}
catch (Exception ex)
{
Core.Network.UpdateLog("Storage", "Error updating local " + ex.Message);
}
if (StorageUpdate != null)
{
Core.RunInGuiThread(StorageUpdate, GetStorage(Core.UserID));
}
}
public static StorageRoot Decode(G2Header header)
{
StorageRoot root = new StorageRoot();
G2Header child = new G2Header(header.Data);
while (G2Protocol.ReadNextChild(header, child) == G2ReadResult.PACKET_GOOD)
{
if (!G2Protocol.ReadPayload(child))
continue;
switch (child.Name)
{
case Packet_Project:
root.ProjectID = BitConverter.ToUInt32(child.Data, child.PayloadPos);
break;
}
}
return root;
}
