Class SignedCatalog

A wrapper around a Catalog adding and XSL stylesheet and a digital signature.

Inheritance

Object

SignedCatalog

Namespace: ZeroInstall.Publish

Assembly: ZeroInstall.Publish.dll

Syntax

public class SignedCatalog : Object

Constructors

SignedCatalog(Catalog, OpenPgpSecretKey, IOpenPgp)

Creates a new signed catalog.

Declaration

public SignedCatalog(Catalog catalog, OpenPgpSecretKey secretKey, IOpenPgp openPgp = null)

Parameters

Type	Name	Description
Catalog	catalog	The wrapped Catalog.
OpenPgpSecretKey	secretKey	The secret key used to sign the Catalog; null for no signature.
IOpenPgp	openPgp	The OpenPGP-compatible system used to create the signatures; null for default.

Properties

Catalog

The wrapped Catalog.

Declaration

public Catalog Catalog { get; }

Property Value

Type	Description
Catalog

SecretKey

The secret key used to sign the Catalog; null for no signature.

Declaration

public OpenPgpSecretKey SecretKey { get; set; }

Property Value

Type	Description
OpenPgpSecretKey

Methods

Load(String)

Loads a Catalog from an XML file and identifies the signature (if any).

Declaration

public static SignedCatalog Load(string path)

Parameters

Type	Name	Description
String	path	The file to load from.

Returns

Type	Description
SignedCatalog	The loaded SignedCatalog.

Exceptions

Type	Condition
IOException	A problem occurred while reading the file.
UnauthorizedAccessException	Read access to the file is not permitted.
InvalidDataException	A problem occurred while deserializing the XML data.

Save(String, String)

Saves Catalog to an XML file, adds the default stylesheet and sign it it with SecretKey (if specified).

Declaration

public void Save(string path, string passphrase = null)

Parameters

Type	Name	Description
String	path	The file to save in.
String	passphrase	The passphrase to use to unlock the secret key; can be null if SecretKey is null.

Remarks

Writing and signing the catalog file are performed as an atomic operation (i.e. if signing fails an existing file remains unchanged).

Exceptions

Type	Condition
IOException	A problem occurred while writing the file.
UnauthorizedAccessException	Write access to the file is not permitted.
KeyNotFoundException	The specified SecretKey could not be found on the system.
WrongPassphraseException	passphrase was incorrect.