/// <summary>
/// Registers a URL protocol in the current system.
/// </summary>
/// <param name="target">The application being integrated.</param>
/// <param name="urlProtocol">The URL protocol to register.</param>
/// <param name="machineWide">Register the URL protocol machine-wide instead of just for the current user.</param>
/// <param name="iconStore">Stores icon files downloaded from the web as local files.</param>
/// <param name="accessPoint">Indicates that the handler shall become the default handler for the protocol.</param>
/// <exception cref="OperationCanceledException">The user canceled the task.</exception>
/// <exception cref="IOException">A problem occurred while writing to the filesystem or registry.</exception>
/// <exception cref="WebException">A problem occurred while downloading additional data (such as icons).</exception>
/// <exception cref="UnauthorizedAccessException">Write access to the filesystem or registry is not permitted.</exception>
/// <exception cref="InvalidDataException">The data in <paramref name="urlProtocol"/> is invalid.</exception>
public static void Register(FeedTarget target, Model.Capabilities.UrlProtocol urlProtocol, IIconStore iconStore, bool machineWide, bool accessPoint = false)
{
#region Sanity checks
if (urlProtocol == null)
{
throw new ArgumentNullException(nameof(urlProtocol));
}
if (iconStore == null)
{
throw new ArgumentNullException(nameof(iconStore));
}
#endregion
if (string.IsNullOrEmpty(urlProtocol.ID))
{
throw new InvalidDataException("Missing ID");
}
using var classesKey = RegistryClasses.OpenHive(machineWide);
if (urlProtocol.KnownPrefixes.Count == 0)
{
if (accessPoint)
{ // Can only be registered invasively by registering protocol ProgID (will replace existing and become default)
using var progIDKey = classesKey.CreateSubKeyChecked(urlProtocol.ID);
progIDKey.SetValue("", urlProtocol.Descriptions.GetBestLanguage(CultureInfo.CurrentUICulture) ?? urlProtocol.ID);
RegistryClasses.Register(progIDKey, target, urlProtocol, iconStore, machineWide);
progIDKey.SetValue(ProtocolIndicator, "");
}
}
else
{ // Can be registered non-invasively by registering custom ProgID (without becoming default)
using (var progIDKey = classesKey.CreateSubKeyChecked(RegistryClasses.Prefix + urlProtocol.ID))
{
progIDKey.SetValue("", urlProtocol.Descriptions.GetBestLanguage(CultureInfo.CurrentUICulture) ?? urlProtocol.ID);
progIDKey.SetValue(accessPoint ? RegistryClasses.PurposeFlagAccessPoint : RegistryClasses.PurposeFlagCapability, "");
RegistryClasses.Register(progIDKey, target, urlProtocol, iconStore, machineWide);
progIDKey.SetValue(ProtocolIndicator, "");
}
if (accessPoint)
{
foreach (var prefix in urlProtocol.KnownPrefixes)
{
if (WindowsUtils.IsWindowsVista && !machineWide)
{
using var userChoiceKey = Registry.CurrentUser.CreateSubKeyChecked($@"{RegKeyUserVistaUrlAssoc}\{prefix.Value}\UserChoice");
userChoiceKey.SetValue("ProgID", RegistryClasses.Prefix + urlProtocol.ID);
}
else
{
// Setting default invasively by registering protocol ProgID
using var progIDKey = classesKey.CreateSubKeyChecked(prefix.Value);
RegistryClasses.Register(progIDKey, target, urlProtocol, iconStore, machineWide);
progIDKey.SetValue(ProtocolIndicator, "");
}
}
}
}
}
/// <summary>
/// Unregisters a URL protocol in the current system.
/// </summary>
/// <param name="urlProtocol">The URL protocol to remove.</param>
/// <param name="machineWide">Unregister the URL protocol machine-wide instead of just for the current user.</param>
/// <param name="accessPoint">Indicates that the handler was the default handler for the protocol.</param>
/// <exception cref="IOException">A problem occurred while writing to the filesystem or registry.</exception>
/// <exception cref="UnauthorizedAccessException">Write access to the filesystem or registry is not permitted.</exception>
/// <exception cref="InvalidDataException">The data in <paramref name="urlProtocol"/> is invalid.</exception>
public static void Unregister(Model.Capabilities.UrlProtocol urlProtocol, bool machineWide, bool accessPoint = false)
{
#region Sanity checks
if (urlProtocol == null)
{
throw new ArgumentNullException(nameof(urlProtocol));
}
#endregion
if (string.IsNullOrEmpty(urlProtocol.ID))
{
throw new InvalidDataException("Missing ID");
}
using var classesKey = RegistryClasses.OpenHive(machineWide);
if (urlProtocol.KnownPrefixes.Count == 0)
{
if (accessPoint) // Was registered invasively by registering protocol ProgID
{
classesKey.DeleteSubKeyTree(urlProtocol.ID, throwOnMissingSubKey: false);
}
}
else
{ // Was registered non-invasively by registering custom ProgID
if (accessPoint)
{
foreach (var prefix in urlProtocol.KnownPrefixes)
{
// TODO: Restore previous default
}
}
// Remove appropriate purpose flag and check if there are others
bool otherFlags;
using (var progIDKey = classesKey.OpenSubKey(RegistryClasses.Prefix + urlProtocol.ID, writable: true))
{
if (progIDKey == null)
{
otherFlags = false;
}
else
{
progIDKey.DeleteValue(accessPoint ? RegistryClasses.PurposeFlagAccessPoint : RegistryClasses.PurposeFlagCapability, throwOnMissingValue: false);
otherFlags = progIDKey.GetValueNames().Any(name => name.StartsWith(RegistryClasses.PurposeFlagPrefix));
}
}
// Delete ProgID if there are no other references
if (!otherFlags)
{
classesKey.DeleteSubKeyTree(RegistryClasses.Prefix + urlProtocol.ID, throwOnMissingSubKey: false);
}
}
#endregion
}
/// <summary>
/// Removes an AutoPlay handler registration from the current system.
/// </summary>
/// <param name="autoPlay">The AutoPlay handler information to be removed.</param>
/// <param name="machineWide">Remove the handler machine-wide instead of just for the current user.</param>
/// <param name="accessPoint">Indicates that the handler should was the default handler for all <see cref="Model.Capabilities.AutoPlay.Events"/>.</param>
/// <exception cref="IOException">A problem occurred while writing to the filesystem or registry.</exception>
/// <exception cref="UnauthorizedAccessException">Write access to the filesystem or registry is not permitted.</exception>
/// <exception cref="InvalidDataException">The data in <paramref name="autoPlay"/> is invalid.</exception>
public static void Unregister(Model.Capabilities.AutoPlay autoPlay, bool machineWide, bool accessPoint = false)
{
#region Sanity checks
if (autoPlay == null)
{
throw new ArgumentNullException(nameof(autoPlay));
}
#endregion
if (string.IsNullOrEmpty(autoPlay.ID))
{
throw new InvalidDataException("Missing ID");
}
var hive = machineWide ? Registry.LocalMachine : Registry.CurrentUser;
string handlerName = RegistryClasses.Prefix + autoPlay.ID;
string progId = RegistryClasses.Prefix + "AutoPlay." + autoPlay.ID;
if (accessPoint)
{
// TODO: Restore previous default
}
// Remove appropriate purpose flag and check if there are others
bool otherFlags;
using (var handlerKey = hive.OpenSubKey($@"{RegKeyHandlers}\{handlerName}", writable: true))
{
if (handlerKey == null)
{
otherFlags = false;
}
else
{
handlerKey.DeleteValue(accessPoint ? RegistryClasses.PurposeFlagAccessPoint : RegistryClasses.PurposeFlagCapability, throwOnMissingValue: false);
otherFlags = handlerKey.GetValueNames().Any(name => name.StartsWith(RegistryClasses.PurposeFlagPrefix));
}
}
// Delete handler key and ProgID if there are no other references
if (!otherFlags)
{
foreach (var autoPlayEvent in autoPlay.Events.Except(x => string.IsNullOrEmpty(x.Name)))
{
using var eventKey = hive.OpenSubKey($@"{RegKeyAssocs}\{autoPlayEvent.Name}", writable: true);
eventKey?.DeleteValue(handlerName, throwOnMissingValue: false);
}
hive.DeleteSubKeyTree($@"{RegKeyHandlers}\{handlerName}", throwOnMissingSubKey: false);
using var classesKey = RegistryClasses.OpenHive(machineWide);
classesKey.DeleteSubKeyTree(progId, throwOnMissingSubKey: false);
}
}
/// <summary>
/// Adds an AutoPlay handler registration to the current system.
/// </summary>
/// <param name="target">The application being integrated.</param>
/// <param name="autoPlay">The AutoPlay handler information to be applied.</param>
/// <param name="machineWide">Register the handler machine-wide instead of just for the current user.</param>
/// <param name="iconStore">Stores icon files downloaded from the web as local files.</param>
/// <param name="accessPoint">Indicates that the handler should become the default handler for all <see cref="Model.Capabilities.AutoPlay.Events"/>.</param>
/// <exception cref="OperationCanceledException">The user canceled the task.</exception>
/// <exception cref="IOException">A problem occurred while writing to the filesystem or registry.</exception>
/// <exception cref="WebException">A problem occurred while downloading additional data (such as icons).</exception>
/// <exception cref="UnauthorizedAccessException">Write access to the filesystem or registry is not permitted.</exception>
/// <exception cref="InvalidDataException">The data in <paramref name="autoPlay"/> is invalid.</exception>
public static void Register(FeedTarget target, Model.Capabilities.AutoPlay autoPlay, IIconStore iconStore, bool machineWide, bool accessPoint = false)
{
#region Sanity checks
if (autoPlay == null)
{
throw new ArgumentNullException(nameof(autoPlay));
}
if (iconStore == null)
{
throw new ArgumentNullException(nameof(iconStore));
}
#endregion
if (string.IsNullOrEmpty(autoPlay.ID))
{
throw new InvalidDataException("Missing ID");
}
if (string.IsNullOrEmpty(autoPlay.Provider))
{
throw new InvalidDataException("Missing provider");
}
var verb = autoPlay.Verb;
if (verb == null)
{
throw new InvalidDataException("Missing verb");
}
if (string.IsNullOrEmpty(verb.Name))
{
throw new InvalidDataException("Missing verb name");
}
string handlerName = RegistryClasses.Prefix + autoPlay.ID;
string progId = RegistryClasses.Prefix + "AutoPlay." + autoPlay.ID;
using (var classesKey = RegistryClasses.OpenHive(machineWide))
using (var verbKey = classesKey.CreateSubKeyChecked($@"{progId}\shell\{verb.Name}"))
RegistryClasses.Register(verbKey, target, verb, iconStore, machineWide);
var hive = machineWide ? Registry.LocalMachine : Registry.CurrentUser;
using (var handlerKey = hive.CreateSubKeyChecked($@"{RegKeyHandlers}\{handlerName}"))
{
handlerKey.SetValue(accessPoint ? RegistryClasses.PurposeFlagAccessPoint : RegistryClasses.PurposeFlagCapability, "");
handlerKey.SetValue(RegValueProgID, progId);
handlerKey.SetValue(RegValueVerb, verb.Name);
handlerKey.SetValue(RegValueProvider, autoPlay.Provider);
handlerKey.SetValue(RegValueDescription, autoPlay.Descriptions.GetBestLanguage(CultureInfo.CurrentUICulture) ?? verb.Name);
var icon = autoPlay.GetIcon(Icon.MimeTypeIco) ?? target.Feed.GetIcon(Icon.MimeTypeIco, verb.Command);
if (icon != null)
{
handlerKey.SetValue(RegValueIcon, iconStore.GetPath(icon) + ",0");
}
}
foreach (var autoPlayEvent in autoPlay.Events.Except(x => string.IsNullOrEmpty(x.Name)))
{
using (var eventKey = hive.CreateSubKeyChecked($@"{RegKeyAssocs}\{autoPlayEvent.Name}"))
eventKey.SetValue(handlerName, "");
if (accessPoint)
{
using var chosenEventKey = hive.CreateSubKeyChecked($@"{RegKeyChosenAssocs}\{autoPlayEvent.Name}");
chosenEventKey.SetValue("", handlerName);
}
}
}
/// <summary>
/// Registers a file type in the current system.
/// </summary>
/// <param name="target">The application being integrated.</param>
/// <param name="fileType">The file type to register.</param>
/// <param name="machineWide">Register the file type machine-wide instead of just for the current user.</param>
/// <param name="iconStore">Stores icon files downloaded from the web as local files.</param>
/// <param name="accessPoint">Indicates that the file associations shall become default handlers for their respective types.</param>
/// <exception cref="OperationCanceledException">The user canceled the task.</exception>
/// <exception cref="IOException">A problem occurred while writing to the filesystem or registry.</exception>
/// <exception cref="WebException">A problem occurred while downloading additional data (such as icons).</exception>
/// <exception cref="UnauthorizedAccessException">Write access to the filesystem or registry is not permitted.</exception>
/// <exception cref="InvalidDataException">The data in <paramref name="fileType"/> is invalid.</exception>
public static void Register(FeedTarget target, Model.Capabilities.FileType fileType, IIconStore iconStore, bool machineWide, bool accessPoint = false)
{
#region Sanity checks
if (fileType == null)
{
throw new ArgumentNullException(nameof(fileType));
}
if (iconStore == null)
{
throw new ArgumentNullException(nameof(iconStore));
}
#endregion
if (string.IsNullOrEmpty(fileType.ID))
{
throw new InvalidDataException("Missing ID");
}
using var classesKey = RegistryClasses.OpenHive(machineWide);
// Register ProgID
using (var progIDKey = classesKey.CreateSubKeyChecked(RegistryClasses.Prefix + fileType.ID))
{
progIDKey.SetValue("", fileType.Descriptions.GetBestLanguage(CultureInfo.CurrentUICulture) ?? fileType.ID);
progIDKey.SetValue(accessPoint ? RegistryClasses.PurposeFlagAccessPoint : RegistryClasses.PurposeFlagCapability, "");
RegistryClasses.Register(progIDKey, target, fileType, iconStore, machineWide);
}
foreach (var extension in fileType.Extensions.Except(x => string.IsNullOrEmpty(x.Value)))
{
// Register extensions
using (var extensionKey = classesKey.CreateSubKeyChecked(extension.Value))
{
if (!string.IsNullOrEmpty(extension.MimeType))
{
extensionKey.SetValue(RegValueContentType, extension.MimeType);
}
if (!string.IsNullOrEmpty(extension.PerceivedType))
{
extensionKey.SetValue(RegValuePerceivedType, extension.PerceivedType);
}
using (var openWithKey = extensionKey.CreateSubKeyChecked(RegSubKeyOpenWith))
openWithKey.SetValue(RegistryClasses.Prefix + fileType.ID, "");
if (accessPoint)
{
if (!machineWide && WindowsUtils.IsWindowsVista)
{ // Windows Vista and later store per-user file extension overrides
using var overridesKey = Registry.CurrentUser.OpenSubKeyChecked(RegKeyOverrides, writable: true);
using var extensionOverrideKey = overridesKey.CreateSubKeyChecked(extension.Value);
// Only mess with this part of the registry when necessary
bool alreadySet;
using (var userChoiceKey = extensionOverrideKey.OpenSubKey("UserChoice", writable: false))
{
if (userChoiceKey == null)
{
alreadySet = false;
}
else
{
alreadySet = ((userChoiceKey.GetValue("Progid") ?? "").ToString() == RegistryClasses.Prefix + fileType.ID);
}
}
if (!alreadySet)
{
// Must delete and recreate instead of direct modification due to wicked ACLs
extensionOverrideKey.DeleteSubKeyTree("UserChoice", throwOnMissingSubKey: false);
try
{
using var userChoiceKey = extensionOverrideKey.CreateSubKeyChecked("UserChoice");
userChoiceKey.SetValue("Progid", RegistryClasses.Prefix + fileType.ID);
}
catch (UnauthorizedAccessException ex)
{
// Windows may try to prevent modifications to this key
Log.Debug(ex);
}
}
}
else
{
extensionKey.SetValue("", RegistryClasses.Prefix + fileType.ID);
}
}
}
// Register MIME types
if (!string.IsNullOrEmpty(extension.MimeType))
{
using var mimeKey = classesKey.CreateSubKeyChecked($@"{RegSubKeyMimeType}\{extension.MimeType}");
mimeKey.SetValue(RegValueExtension, extension.Value);
}
}
}
/// <summary>
/// Unregisters a file type in the current system.
/// </summary>
/// <param name="fileType">The file type to remove.</param>
/// <param name="machineWide">Unregister the file type machine-wide instead of just for the current user.</param>
/// <param name="accessPoint">Indicates that the file associations were default handlers for their respective types.</param>
/// <exception cref="IOException">A problem occurred while writing to the filesystem or registry.</exception>
/// <exception cref="UnauthorizedAccessException">Write access to the filesystem or registry is not permitted.</exception>
/// <exception cref="InvalidDataException">The data in <paramref name="fileType"/> is invalid.</exception>
public static void Unregister(Model.Capabilities.FileType fileType, bool machineWide, bool accessPoint = false)
{
#region Sanity checks
if (fileType == null)
{
throw new ArgumentNullException(nameof(fileType));
}
#endregion
if (string.IsNullOrEmpty(fileType.ID))
{
throw new InvalidDataException("Missing ID");
}
using var classesKey = RegistryClasses.OpenHive(machineWide);
foreach (var extension in fileType.Extensions.Except(extension => string.IsNullOrEmpty(extension.Value)))
{
// Unregister MIME types
// if (!string.IsNullOrEmpty(extension.MimeType))
// {
// using (var extensionKey = classesKey.CreateSubKeyChecked(extension.Value))
// {
// // TODO: Restore previous default
// extensionKey.SetValue("", fileType.PreviousID);
// }
//
// if (!machineWide && WindowsUtils.IsWindowsVista && !WindowsUtils.IsWindows8)
// {
// // Windows Vista and later store per-user file extension overrides, Windows 8 blocks programmatic modification with hash values
// using (var overridesKey = hive.OpenSubKey(RegKeyOverrides, true))
// using (var extensionOverrideKey = overridesKey.CreateSubKeyChecked(extension.Value))
// {
// // Must delete and recreate instead of direct modification due to wicked ACLs
// extensionOverrideKey.DeleteSubKeyTree("UserChoice", throwOnMissingSubKey: false);
// using (var userChoiceKey = extensionOverrideKey.CreateSubKeyChecked("UserChoice"))
// userChoiceKey.SetValue("ProgID", fileType.PreviousID);
// }
// }
// }
// Unregister extensions
using var extensionKey = classesKey.OpenSubKey(extension.Value, writable: true);
if (extensionKey != null)
{
using var openWithKey = extensionKey.OpenSubKey(RegSubKeyOpenWith, writable: true);
openWithKey?.DeleteValue(RegistryClasses.Prefix + fileType.ID, throwOnMissingValue: false);
}
if (accessPoint)
{
// TODO: Restore previous default
}
}
// Remove appropriate purpose flag and check if there are others
bool otherFlags;
using (var progIDKey = classesKey.OpenSubKey(RegistryClasses.Prefix + fileType.ID, writable: true))
{
if (progIDKey == null)
{
otherFlags = false;
}
else
{
progIDKey.DeleteValue(accessPoint ? RegistryClasses.PurposeFlagAccessPoint : RegistryClasses.PurposeFlagCapability, throwOnMissingValue: false);
otherFlags = progIDKey.GetValueNames().Any(name => name.StartsWith(RegistryClasses.PurposeFlagPrefix));
}
}
// Delete ProgID if there are no other references
if (!otherFlags)
{
classesKey.DeleteSubKeyTree(RegistryClasses.Prefix + fileType.ID, throwOnMissingSubKey: false);
}
}