[System.Security.SecurityCritical] // auto-generated
#endif
public void Remove()
{
#if !FEATURE_LEGACYNETCF
bool removedAll = true;
FileLock groupLock = FileLock.GetFileLock(Path.Combine(IsolatedStorageFile.IsolatedStorageRoot, IsolatedStorageFile.s_LockPathPrefix), IsolatedStorageFile.s_GroupPathPrefix + "-" + m_ObfuscatedId);
try {
groupLock.Lock();
foreach (string storeDir in Directory.UnsafeGetDirectories(Path.Combine(IsolatedStorageFile.IsolatedStorageRoot, IsolatedStorageFile.s_StorePathPrefix), "*", SearchOption.TopDirectoryOnly))
{
string groupFile = Path.Combine(storeDir, IsolatedStorageFile.s_GroupFileName);
if (m_ObfuscatedId.Equals(File.UnsafeReadAllText(groupFile)))
{
IsolatedStorageFile f = IsolatedStorageFile.GetUserStoreFromGroupAndStorePath(Group, storeDir);
removedAll = removedAll & f.TryRemove();
}
}
IsolatedStorageFile.TouchFile(Path.Combine(m_GroupPath, IsolatedStorageFile.s_CleanupFileName));
if (removedAll)
{
IsolatedStorageAccountingInfo.RemoveAccountingInfo(m_GroupPath);
File.UnsafeDelete(Path.Combine(m_GroupPath, IsolatedStorageFile.s_IdFileName));
File.UnsafeDelete(Path.Combine(m_GroupPath, IsolatedStorageFile.s_CleanupFileName));
Directory.UnsafeDelete(m_GroupPath, false);
}
} catch (IOException) {
// There isn't anything we can really do about this. Ignoring these sorts of issues shouldn't lead to corruption.
} catch (UnauthorizedAccessException) {
// There isn't anything we can really do about this. Ignoring these sorts of issues shouldn't lead to corruption.
} finally {
groupLock.Unlock();
}
#else // !FEATURE_LEGACYNETCF
try {
using (IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication()) {
isf.Remove();
}
} catch (IOException) {
// There isn't anything we can really do about this. Ignoring these sorts of issues shouldn't lead to corruption.
} catch (UnauthorizedAccessException) {
// There isn't anything we can really do about this. Ignoring these sorts of issues shouldn't lead to corruption.
}
#endif // !FEATURE_LEGACYNETCF
}
[System.Security.SecurityCritical] // auto-generated
#endif
private static string FetchOrCreateGroup(string groupName, out IsolatedStorageAccountingInfo accountInfo, bool retry) {
string obfuscatedGroupName = GetHash(groupName);
string groupRootPath = GetGroupPathFromName(groupName);
FileLock rootLock = FileLock.GetFileLock(IsolatedStorageRoot);
try {
rootLock.Lock();
if(Directory.UnsafeExists(groupRootPath)) {
if(File.UnsafeExists(Path.Combine(groupRootPath, s_CleanupFileName))) {
if (retry) {
// The IsolatedStorageGroup object we construct here has dummy data for the Quota and Used Size,
// But it doesn't really matter, since we won't use that information for anything. We just want
// to use the Group's Remove method.
(new IsolatedStorageGroup(groupName, 0, 0, groupRootPath)).Remove();
return FetchOrCreateGroup(groupName, out accountInfo, false);
} else {
throw new IsolatedStorageException(Environment.GetResourceString("IsolatedStorage_Init"));
}
} else {
// We should ensure that the id.dat, quota.dat and used.dat files exist.
if (!File.UnsafeExists(Path.Combine(groupRootPath, s_IdFileName))) {
// We can simply recreate the id.dat file if it is missing
File.UnsafeWriteAllText(Path.Combine(groupRootPath, s_IdFileName), groupName);
} else {
// Check for colision.
if (!groupName.Equals(File.UnsafeReadAllText(Path.Combine(groupRootPath, s_IdFileName)))) {
throw new IsolatedStorageException(Environment.GetResourceString("IsolatedStorage_Init"));
}
}
if (!IsolatedStorageAccountingInfo.IsAccountingInfoValid(groupRootPath)) {
// We'll delete all the stuff tied to this group and recreate these files.
if (!DeleteStoresForGroup(obfuscatedGroupName)) {
// We couldn't clean an existing store that belongs to this group. So we will fail to create the group, doing
// so would mess up our bookkeeping information.
throw new IsolatedStorageException(Environment.GetResourceString("IsolatedStorage_Init"));
}
}
accountInfo = new IsolatedStorageAccountingInfo(groupRootPath);
return groupRootPath;
}
} else {
// We might be in a weird state where the "g" directory got deleted but there are stores still in that group around
// This could happen if a someone deleted the "g" directory with Windows Explorer or Finder or something. We should
// ensure there are no stores for this group here.
if (!DeleteStoresForGroup(obfuscatedGroupName)) {
// We couldn't clean an existing store that belongs to this group. So we will fail to create the group, doing
// so would mess up our bookkeeping information.
throw new IsolatedStorageException(Environment.GetResourceString("IsolatedStorage_Init"));
}
Directory.UnsafeCreateDirectory(groupRootPath);
TouchFile(Path.Combine(groupRootPath, s_CleanupFileName));
File.UnsafeWriteAllText(Path.Combine(groupRootPath, s_IdFileName), groupName);
File.UnsafeDelete(Path.Combine(groupRootPath, s_CleanupFileName));
accountInfo = new IsolatedStorageAccountingInfo(groupRootPath);
return groupRootPath;
}
} catch(IOException e) {
throw GetIsolatedStorageException("IsolatedStorage_Init", e);
} catch (UnauthorizedAccessException e) {
throw GetIsolatedStorageException("IsolatedStorage_Init", e);
} finally {
rootLock.Unlock();
}
}
[System.Security.SecurityCritical] // auto-generated
#endif
private static string FetchOrCreateGroup(string groupName, out IsolatedStorageAccountingInfo accountInfo) {
return FetchOrCreateGroup(groupName, out accountInfo, true);
}
[System.Security.SecurityCritical] // auto-generated
#endif
public static IEnumerable<IsolatedStorageGroup> GetGroups() {
List<IsolatedStorageGroup> groups = new List<IsolatedStorageGroup>();
#if !FEATURE_LEGACYNETCF
try {
foreach (string groupDir in Directory.UnsafeGetDirectories(Path.Combine(IsolatedStorageFile.IsolatedStorageRoot, IsolatedStorageFile.s_GroupPathPrefix), "*", SearchOption.TopDirectoryOnly)) {
string idFile = Path.Combine(groupDir, IsolatedStorageFile.s_IdFileName);
string id;
FileLock groupLock = FileLock.GetFileLock(Path.Combine(IsolatedStorageFile.IsolatedStorageRoot, IsolatedStorageFile.s_LockPathPrefix), IsolatedStorageFile.s_GroupPathPrefix + "-" + DirectoryInfo.UnsafeCreateDirectoryInfo(groupDir).Name);
try {
groupLock.Lock();
if(!File.UnsafeExists(Path.Combine(groupDir, IsolatedStorageFile.s_CleanupFileName))) {
id = File.UnsafeReadAllText(idFile);
if (IsolatedStorageAccountingInfo.IsAccountingInfoValid(groupDir)) {
using (IsolatedStorageAccountingInfo accountingInfo = new IsolatedStorageAccountingInfo(groupDir)) {
groups.Add(new IsolatedStorageGroup(id, accountingInfo.Quota, accountingInfo.UsedSize, groupDir));
}
} else {
// In this case we've tried to deseriaize a group that doesn't have valid data. We'll try to remove it.
try {
new IsolatedStorageGroup(id, 0, 0, groupDir).Remove();
} catch (Exception) {
// We couldn't remove the group for some reason. Ignore it and move on.
}
}
}
} catch (IOException) {
// There isn't anything we can really do about this. Ignoring these sorts of issues shouldn't lead to corruption.
} catch (UnauthorizedAccessException) {
// There isn't anything we can really do about this. Ignoring these sorts of issues shouldn't lead to corruption.
} finally {
groupLock.Unlock();
}
}
} catch (IOException) {
// There isn't anything we can really do about this. Ignoring these sorts of issues shouldn't lead to corruption.
} catch (UnauthorizedAccessException) {
// There isn't anything we can really do about this. Ignoring these sorts of issues shouldn't lead to corruption.
}
#else
try {
using (IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication()) {
groups.Add(new IsolatedStorageGroup(isf.GroupName, Int64.MaxValue, 0, IsolatedStorageFile.IsolatedStorageRoot));
}
} catch (IOException) {
// There isn't anything we can really do about this. Ignoring these sorts of issues shouldn't lead to corruption.
} catch (UnauthorizedAccessException) {
// There isn't anything we can really do about this. Ignoring these sorts of issues shouldn't lead to corruption.
} catch (IsolatedStorageException) {
// There isn't anything we can really do about this. Ignoring these sorts of issues shouldn't lead to corruption.
}
#endif
return groups;
}
[System.Security.SecurityCritical] // auto-generated
#endif
public static IEnumerable <IsolatedStorageGroup> GetGroups()
{
List <IsolatedStorageGroup> groups = new List <IsolatedStorageGroup>();
#if !FEATURE_LEGACYNETCF
try {
foreach (string groupDir in Directory.UnsafeGetDirectories(Path.Combine(IsolatedStorageFile.IsolatedStorageRoot, IsolatedStorageFile.s_GroupPathPrefix), "*", SearchOption.TopDirectoryOnly))
{
string idFile = Path.Combine(groupDir, IsolatedStorageFile.s_IdFileName);
string id;
FileLock groupLock = FileLock.GetFileLock(Path.Combine(IsolatedStorageFile.IsolatedStorageRoot, IsolatedStorageFile.s_LockPathPrefix), IsolatedStorageFile.s_GroupPathPrefix + "-" + DirectoryInfo.UnsafeCreateDirectoryInfo(groupDir).Name);
try {
groupLock.Lock();
if (!File.UnsafeExists(Path.Combine(groupDir, IsolatedStorageFile.s_CleanupFileName)))
{
id = File.UnsafeReadAllText(idFile);
if (IsolatedStorageAccountingInfo.IsAccountingInfoValid(groupDir))
{
using (IsolatedStorageAccountingInfo accountingInfo = new IsolatedStorageAccountingInfo(groupDir)) {
groups.Add(new IsolatedStorageGroup(id, accountingInfo.Quota, accountingInfo.UsedSize, groupDir));
}
}
else
{
// In this case we've tried to deseriaize a group that doesn't have valid data. We'll try to remove it.
try {
new IsolatedStorageGroup(id, 0, 0, groupDir).Remove();
} catch (Exception) {
// We couldn't remove the group for some reason. Ignore it and move on.
}
}
}
} catch (IOException) {
// There isn't anything we can really do about this. Ignoring these sorts of issues shouldn't lead to corruption.
} catch (UnauthorizedAccessException) {
// There isn't anything we can really do about this. Ignoring these sorts of issues shouldn't lead to corruption.
} finally {
groupLock.Unlock();
}
}
} catch (IOException) {
// There isn't anything we can really do about this. Ignoring these sorts of issues shouldn't lead to corruption.
} catch (UnauthorizedAccessException) {
// There isn't anything we can really do about this. Ignoring these sorts of issues shouldn't lead to corruption.
}
#else
try {
using (IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication()) {
groups.Add(new IsolatedStorageGroup(isf.GroupName, Int64.MaxValue, 0, IsolatedStorageFile.IsolatedStorageRoot));
}
} catch (IOException) {
// There isn't anything we can really do about this. Ignoring these sorts of issues shouldn't lead to corruption.
} catch (UnauthorizedAccessException) {
// There isn't anything we can really do about this. Ignoring these sorts of issues shouldn't lead to corruption.
} catch (IsolatedStorageException) {
// There isn't anything we can really do about this. Ignoring these sorts of issues shouldn't lead to corruption.
}
#endif
return(groups);
}
