private static bool CanAddFileAssociation(FileAssociation fileAssociation)
{
try
{
using (RegistryKey key = Registry.CurrentUser.OpenSubKey(@"Software\Classes"))
{
using (RegistryKey key2 = key.OpenSubKey(fileAssociation.Extension))
{
using (RegistryKey key3 = key.OpenSubKey(fileAssociation.ProgID))
{
if ((key2 != null) || (key3 != null))
{
Logger.AddWarningInformation(string.Format(CultureInfo.CurrentUICulture, Resources.GetString("SkippedFileAssoc"), new object[] { fileAssociation.Extension }));
Logger.AddInternalState("File association for " + fileAssociation.Extension + " skipped, since another application is using it.");
return false;
}
}
}
}
}
catch (SecurityException exception)
{
Logger.AddInternalState("Exception reading registry key : " + exception.StackTrace);
Logger.AddInternalState("File association for " + fileAssociation.Extension + " skipped");
return false;
}
return true;
}
private static void AddFileAssociation(FileAssociation fileAssociation, DefinitionIdentity subId, Uri deploymentProviderUri)
{
if (CanAddFileAssociation(fileAssociation))
{
string str = Guid.NewGuid().ToString("B");
string str2 = subId.ToString();
using (RegistryKey key = Registry.CurrentUser.CreateSubKey(@"Software\Classes"))
{
using (RegistryKey key2 = key.CreateSubKey(fileAssociation.Extension))
{
key2.SetValue(null, fileAssociation.ProgID);
key2.SetValue("AppId", str2);
key2.SetValue("Guid", str);
key2.SetValue("DeploymentProviderUrl", deploymentProviderUri.AbsoluteUri);
}
using (RegistryKey key3 = key.CreateSubKey(fileAssociation.ProgID))
{
key3.SetValue(null, fileAssociation.Description);
key3.SetValue("AppId", str2);
key3.SetValue("Guid", str);
key3.SetValue("DeploymentProviderUrl", deploymentProviderUri.AbsoluteUri);
using (RegistryKey key4 = key3.CreateSubKey("shell"))
{
key4.SetValue(null, "open");
using (RegistryKey key5 = key4.CreateSubKey(@"open\command"))
{
key5.SetValue(null, "rundll32.exe dfshim.dll, ShOpenVerbExtension " + str + " %1");
Logger.AddInternalState("File association created. Extension=" + fileAssociation.Extension + " value=rundll32.exe dfshim.dll, ShOpenVerbExtension " + str + " %1");
}
using (RegistryKey key6 = key3.CreateSubKey(@"shellex\IconHandler"))
{
key6.SetValue(null, str);
Logger.AddInternalState("File association icon handler created. Extension=" + fileAssociation.Extension + " value=" + str);
}
}
}
using (RegistryKey key7 = key.CreateSubKey("CLSID"))
{
using (RegistryKey key8 = key7.CreateSubKey(str))
{
key8.SetValue(null, "Shell Icon Handler For " + fileAssociation.Description);
key8.SetValue("AppId", str2);
key8.SetValue("DeploymentProviderUrl", deploymentProviderUri.AbsoluteUri);
key8.SetValue("IconFile", fileAssociation.DefaultIcon);
using (RegistryKey key9 = key8.CreateSubKey("InProcServer32"))
{
key9.SetValue(null, "dfshim.dll");
key9.SetValue("ThreadingModel", "Apartment");
}
}
}
}
}
}
private static string RemoveFileAssociationProgIDInfo(FileAssociation fileAssociation, DefinitionIdentity subId, RegistryKey classesKey, string productName)
{
string str = null;
using (RegistryKey key = classesKey.OpenSubKey(fileAssociation.ProgID, true))
{
if (key == null)
{
return null;
}
object obj2 = key.GetValue("AppId");
if (!(obj2 is string))
{
return null;
}
string a = (string) obj2;
if (!string.Equals(a, subId.ToString(), StringComparison.Ordinal))
{
return null;
}
str = (string) key.GetValue("Guid");
try
{
classesKey.DeleteSubKeyTree(fileAssociation.ProgID);
}
catch (ArgumentException exception)
{
throw new DeploymentException(ExceptionTypes.InvalidARPEntry, string.Format(CultureInfo.CurrentUICulture, Resources.GetString("Ex_FileAssocProgIdDeleteFailed"), new object[] { fileAssociation.ProgID, productName }), exception);
}
}
return str;
}
private static void RemoveFileAssociationExtentionInfo(FileAssociation fileAssociation, DefinitionIdentity subId, RegistryKey classesKey, string productName)
{
using (RegistryKey key = classesKey.OpenSubKey(fileAssociation.Extension, true))
{
if (key != null)
{
object obj2 = key.GetValue("AppId");
if (obj2 is string)
{
string a = (string) obj2;
if (string.Equals(a, subId.ToString(), StringComparison.Ordinal))
{
try
{
classesKey.DeleteSubKeyTree(fileAssociation.Extension);
}
catch (ArgumentException exception)
{
throw new DeploymentException(ExceptionTypes.InvalidARPEntry, string.Format(CultureInfo.CurrentUICulture, Resources.GetString("Ex_FileAssocExtDeleteFailed"), new object[] { fileAssociation.Extension, productName }), exception);
}
}
}
}
}
}
private static void RemoveFileAssociation(FileAssociation fileAssociation, DefinitionIdentity subId, string productName)
{
using (RegistryKey key = Registry.CurrentUser.OpenSubKey(@"Software\Classes", true))
{
if (key != null)
{
Logger.AddMethodCall("RemoveFileAssociation(" + fileAssociation.ToString() + ") called.");
RemoveFileAssociationExtentionInfo(fileAssociation, subId, key, productName);
string clsIdString = RemoveFileAssociationProgIDInfo(fileAssociation, subId, key, productName);
if (clsIdString != null)
{
RemoveFileAssociationCLSIDInfo(fileAssociation, subId, key, clsIdString, productName);
}
}
}
}
