public static bool VerifyUnpackedFolder(string folder, UpdateInfo version = null)
{
try
{
UpdateInfo update;
FileEntry manifest;
var sha256 = System.Security.Cryptography.SHA256.Create();
var md5 = System.Security.Cryptography.MD5.Create();
using(var fs = System.IO.File.OpenRead(System.IO.Path.Combine(folder, UPDATE_MANIFEST_FILENAME)))
{
using(var ss = new SignatureReadingStream(fs, SIGN_KEY))
using(var tr = new System.IO.StreamReader(ss))
using(var jr = new Newtonsoft.Json.JsonTextReader(tr))
update = new Newtonsoft.Json.JsonSerializer().Deserialize<UpdateInfo>(jr);
sha256.Initialize();
md5.Initialize();
fs.Position = 0;
var h1 = Convert.ToBase64String(sha256.ComputeHash(fs));
fs.Position = 0;
var h2 = Convert.ToBase64String(md5.ComputeHash(fs));
manifest = new FileEntry() {
Path = UPDATE_MANIFEST_FILENAME,
Ignore = false,
LastWriteTime = update.ReleaseTime,
SHA256 = h1,
MD5 = h2
};
}
if (version != null && (update.Displayname != version.Displayname || update.ReleaseTime != version.ReleaseTime))
throw new Exception("The found version was not the expected version");
var paths = update.Files.Where(x => !x.Ignore).ToDictionary(x => x.Path.Replace('/', System.IO.Path.DirectorySeparatorChar), Library.Utility.Utility.ClientFilenameStringComparer);
paths.Add(manifest.Path, manifest);
var ignores = (from x in update.Files where x.Ignore select Library.Utility.Utility.AppendDirSeparator(x.Path.Replace('/', System.IO.Path.DirectorySeparatorChar))).ToList();
folder = Library.Utility.Utility.AppendDirSeparator(folder);
var baselen = folder.Length;
foreach(var file in Library.Utility.Utility.EnumerateFileSystemEntries(folder))
{
var relpath = file.Substring(baselen);
if (string.IsNullOrWhiteSpace(relpath))
continue;
FileEntry fe;
if (!paths.TryGetValue(relpath, out fe))
{
var ignore = false;
foreach(var c in ignores)
if (ignore = relpath.StartsWith(c))
break;
if (ignore)
continue;
throw new Exception(string.Format("Found unexpected file: {0}", file));
}
paths.Remove(relpath);
if (fe.Path.EndsWith("/"))
continue;
sha256.Initialize();
md5.Initialize();
using(var fs = System.IO.File.OpenRead(file))
{
if (Convert.ToBase64String(sha256.ComputeHash(fs)) != fe.SHA256)
throw new Exception(string.Format("Invalid sha256 hash for file: {0}", file));
fs.Position = 0;
if (Convert.ToBase64String(md5.ComputeHash(fs)) != fe.MD5)
throw new Exception(string.Format("Invalid md5 hash for file: {0}", file));
}
}
var filteredpaths = (from p in paths
where !string.IsNullOrWhiteSpace(p.Key) && !p.Key.EndsWith("/")
select p.Key).ToList();
if (filteredpaths.Count == 1)
throw new Exception(string.Format("Folder {0} is missing: {1}", folder, filteredpaths.First()));
else if (filteredpaths.Count > 0)
throw new Exception(string.Format("Folder {0} is missing {1} and {2} other file(s)", folder, filteredpaths.First(), filteredpaths.Count - 1));
return true;
}
catch (Exception ex)
{
if (OnError != null)
OnError(ex);
}
return false;
}
public static bool VerifyUnpackedFolder(string folder, UpdateInfo version = null)
{
try
{
UpdateInfo update;
FileEntry manifest;
var sha256 = System.Security.Cryptography.SHA256.Create();
var md5 = System.Security.Cryptography.MD5.Create();
using (var fs = System.IO.File.OpenRead(System.IO.Path.Combine(folder, UPDATE_MANIFEST_FILENAME)))
{
using (var ss = new SignatureReadingStream(fs, SIGN_KEY))
using (var tr = new System.IO.StreamReader(ss))
using (var jr = new Newtonsoft.Json.JsonTextReader(tr))
update = new Newtonsoft.Json.JsonSerializer().Deserialize <UpdateInfo>(jr);
sha256.Initialize();
md5.Initialize();
fs.Position = 0;
var h1 = Convert.ToBase64String(sha256.ComputeHash(fs));
fs.Position = 0;
var h2 = Convert.ToBase64String(md5.ComputeHash(fs));
manifest = new FileEntry()
{
Path = UPDATE_MANIFEST_FILENAME,
Ignore = false,
LastWriteTime = update.ReleaseTime,
SHA256 = h1,
MD5 = h2
};
}
if (version != null && (update.Displayname != version.Displayname || update.ReleaseTime != version.ReleaseTime))
{
throw new Exception("The found version was not the expected version");
}
var paths = update.Files.Where(x => !x.Ignore).ToDictionary(x => x.Path.Replace('/', System.IO.Path.DirectorySeparatorChar), Library.Utility.Utility.ClientFilenameStringComparer);
paths.Add(manifest.Path, manifest);
var ignores = (from x in update.Files where x.Ignore select Library.Utility.Utility.AppendDirSeparator(x.Path.Replace('/', System.IO.Path.DirectorySeparatorChar))).ToList();
folder = Library.Utility.Utility.AppendDirSeparator(folder);
var baselen = folder.Length;
foreach (var file in Library.Utility.Utility.EnumerateFileSystemEntries(folder))
{
var relpath = file.Substring(baselen);
if (string.IsNullOrWhiteSpace(relpath))
{
continue;
}
FileEntry fe;
if (!paths.TryGetValue(relpath, out fe))
{
var ignore = false;
foreach (var c in ignores)
{
if (ignore = relpath.StartsWith(c))
{
break;
}
}
if (ignore)
{
continue;
}
throw new Exception(string.Format("Found unexpected file: {0}", file));
}
paths.Remove(relpath);
if (fe.Path.EndsWith("/"))
{
continue;
}
sha256.Initialize();
md5.Initialize();
using (var fs = System.IO.File.OpenRead(file))
{
if (Convert.ToBase64String(sha256.ComputeHash(fs)) != fe.SHA256)
{
throw new Exception(string.Format("Invalid sha256 hash for file: {0}", file));
}
fs.Position = 0;
if (Convert.ToBase64String(md5.ComputeHash(fs)) != fe.MD5)
{
throw new Exception(string.Format("Invalid md5 hash for file: {0}", file));
}
}
}
var filteredpaths = (from p in paths
where !string.IsNullOrWhiteSpace(p.Key) && !p.Key.EndsWith("/")
select p.Key).ToList();
if (filteredpaths.Count == 1)
{
throw new Exception(string.Format("Folder {0} is missing: {1}", folder, filteredpaths.First()));
}
else if (filteredpaths.Count > 0)
{
throw new Exception(string.Format("Folder {0} is missing {1} and {2} other file(s)", folder, filteredpaths.First(), filteredpaths.Count - 1));
}
return(true);
}
catch (Exception ex)
{
if (OnError != null)
{
OnError(ex);
}
}
return(false);
}
