/// <summary>
/// Load assembly binding redirects from a configuration file.
/// </summary>
/// <param name="configFile">The configuration filename</param>
/// <returns>A collection containing the assembly binding redirects</returns>
public static Collection <BindingRedirectSettings> FromConfigFile(
string configFile)
{
XmlNamespaceManager nsm;
XmlDocument config;
XPathNavigator navConfig;
Collection <BindingRedirectSettings> redirects =
new Collection <BindingRedirectSettings>();
config = new XmlDocument();
config.Load(configFile);
nsm = new XmlNamespaceManager(config.NameTable);
nsm.AddNamespace("binding", "urn:schemas-microsoft-com:asm.v1");
navConfig = config.CreateNavigator();
foreach (XPathNavigator nav in navConfig.Select("configuration/" +
"runtime/binding:assemblyBinding/binding:dependentAssembly", nsm))
{
redirects.Add(BindingRedirectSettings.FromXPathNavigator(
nav, nsm, "binding"));
}
return(redirects);
}
//=====================================================================
/// <summary>
/// Constructor
/// </summary>
/// <param name="configuration">The configuration navigator</param>
public BindingRedirectResolver(XPathNavigator configuration) :
base(configuration)
{
Collection <BindingRedirectSettings> importedSettings;
BindingRedirectSettings brs;
Type type;
System.Reflection.FieldInfo field;
Assembly asm = Assembly.GetExecutingAssembly();
FileVersionInfo fvi = FileVersionInfo.GetVersionInfo(asm.Location);
// Log the use of the resolver in case it crashes
ConsoleApplication.WriteMessage(LogLevel.Info, String.Format(
CultureInfo.InvariantCulture, "\r\n[{0}, version {1}]\r\n" +
"Binding Redirect Assembly Resolver Component.\r\n{2}\r\n" +
"http://SHFB.CodePlex.com", fvi.ProductName,
fvi.ProductVersion, fvi.LegalCopyright));
// Unfortunately, the base class doesn't expose its cache so we
// have to use Reflection to get at it.
type = this.GetType().BaseType;
field = type.GetField("cache", System.Reflection.BindingFlags.NonPublic |
System.Reflection.BindingFlags.Instance);
cache = (Dictionary <string, AssemblyNode>)field.GetValue(this);
// Load assembly binding redirects
redirects = new Collection <BindingRedirectSettings>();
foreach (XPathNavigator nav in configuration.Select(
"assemblyBinding/dependentAssembly"))
{
brs = BindingRedirectSettings.FromXPathNavigator(nav, null, null);
// Import settings from a configuration file?
if (!String.IsNullOrEmpty(brs.ConfigurationFile))
{
importedSettings = BindingRedirectSettings.FromConfigFile(
brs.ConfigurationFile);
foreach (BindingRedirectSettings imported in importedSettings)
{
ConsoleApplication.WriteMessage(LogLevel.Info,
imported.ToString());
redirects.Add(imported);
}
}
else
{
ConsoleApplication.WriteMessage(LogLevel.Info, brs.ToString());
redirects.Add(brs);
}
}
}
//=====================================================================
/// <summary>
/// Create a binding redirect settings instance from an XPath navigator
/// containing the settings.
/// </summary>
/// <param name="navigator">The XPath navigator from which to
/// obtain the settings.</param>
/// <param name="resolver">An optional namespace resolver. Pass null
/// if one is not needed.</param>
/// <param name="namespacePrefix">The namespace to prefix the elements
/// with if needed. This is ignored if <c>resolver</c> is null.</param>
/// <returns>A <see cref="BindingRedirectSettings"/> object containing
/// the settings from the XPath navigator.</returns>
/// <remarks>It should contain an element called <c>dependentAssembly</c>
/// with a configFile attribute or a nested <c>assemblyIdentity</c> and
/// <c>bindingRedirect</c> element that define the settings.</remarks>
public static BindingRedirectSettings FromXPathNavigator(
XPathNavigator navigator, IXmlNamespaceResolver resolver,
string namespacePrefix)
{
BindingRedirectSettings brs = new BindingRedirectSettings();
XPathNavigator nav;
string value;
string[] versions;
Version tempVersion;
if (navigator != null)
{
value = navigator.GetAttribute("importFrom", String.Empty).Trim();
if (value.Length != 0)
{
brs.ConfigurationFile = value;
}
else
{
if (resolver != null)
{
if (!String.IsNullOrEmpty(namespacePrefix))
{
namespacePrefix += ":";
}
else
{
namespacePrefix = String.Empty;
}
}
else
{
namespacePrefix = String.Empty;
}
nav = navigator.SelectSingleNode(namespacePrefix +
"assemblyIdentity", resolver);
if (nav != null)
{
brs.AssemblyName = nav.GetAttribute("name",
String.Empty).Trim();
brs.PublicKeyToken = nav.GetAttribute("publicKeyToken",
String.Empty).Trim();
brs.Culture = nav.GetAttribute("culture",
String.Empty).Trim();
}
nav = navigator.SelectSingleNode(namespacePrefix +
"bindingRedirect", resolver);
if (nav != null)
{
value = nav.GetAttribute("newVersion", String.Empty).Trim();
if (value.Length != 0)
{
brs.NewVersion = new Version(value);
}
value = nav.GetAttribute("oldVersion", String.Empty).Trim();
versions = value.Split('-');
if (versions.Length == 2)
{
if (versions[0].Trim().Length != 0)
{
brs.OldVersion = new Version(versions[0]);
}
if (versions[1].Trim().Length != 0)
{
brs.OldVersionTo = new Version(versions[1]);
}
if (brs.OldVersion > brs.oldVersionTo)
{
tempVersion = brs.OldVersion;
brs.OldVersion = brs.oldVersionTo;
brs.oldVersionTo = tempVersion;
}
}
else
{
brs.OldVersion = new Version(versions[0]);
}
}
}
}
return(brs);
}
//=====================================================================
/// <summary>
/// Create a binding redirect settings instance from an XPath navigator
/// containing the settings.
/// </summary>
/// <param name="navigator">The XPath navigator from which to
/// obtain the settings.</param>
/// <param name="resolver">An optional namespace resolver. Pass null
/// if one is not needed.</param>
/// <param name="namespacePrefix">The namespace to prefix the elements
/// with if needed. This is ignored if <c>resolver</c> is null.</param>
/// <returns>A <see cref="BindingRedirectSettings"/> object containing
/// the settings from the XPath navigator.</returns>
/// <remarks>It should contain an element called <c>dependentAssembly</c>
/// with a configFile attribute or a nested <c>assemblyIdentity</c> and
/// <c>bindingRedirect</c> element that define the settings.</remarks>
public static BindingRedirectSettings FromXPathNavigator(
XPathNavigator navigator, IXmlNamespaceResolver resolver,
string namespacePrefix)
{
BindingRedirectSettings brs = new BindingRedirectSettings();
XPathNavigator nav;
string value;
string[] versions;
Version tempVersion;
if(navigator != null)
{
value = navigator.GetAttribute("importFrom", String.Empty).Trim();
if(value.Length != 0)
brs.ConfigurationFile = value;
else
{
if(resolver != null)
{
if(!String.IsNullOrEmpty(namespacePrefix))
namespacePrefix += ":";
else
namespacePrefix = String.Empty;
}
else
namespacePrefix = String.Empty;
nav = navigator.SelectSingleNode(namespacePrefix +
"assemblyIdentity", resolver);
if(nav != null)
{
brs.AssemblyName = nav.GetAttribute("name",
String.Empty).Trim();
brs.PublicKeyToken = nav.GetAttribute("publicKeyToken",
String.Empty).Trim();
brs.Culture = nav.GetAttribute("culture",
String.Empty).Trim();
}
nav = navigator.SelectSingleNode(namespacePrefix +
"bindingRedirect", resolver);
if(nav != null)
{
value = nav.GetAttribute("newVersion", String.Empty).Trim();
if(value.Length != 0)
brs.NewVersion = new Version(value);
value = nav.GetAttribute("oldVersion", String.Empty).Trim();
versions = value.Split('-');
if(versions.Length == 2)
{
if(versions[0].Trim().Length != 0)
brs.OldVersion = new Version(versions[0]);
if(versions[1].Trim().Length != 0)
brs.OldVersionTo = new Version(versions[1]);
if(brs.OldVersion > brs.oldVersionTo)
{
tempVersion = brs.OldVersion;
brs.OldVersion = brs.oldVersionTo;
brs.oldVersionTo = tempVersion;
}
}
else
brs.OldVersion = new Version(versions[0]);
}
}
}
return brs;
}
