/// <summary>
/// Fetches the file content from the provided <paramref name="uri"/> as a <see cref="ContentResourceInfo"/>.
/// </summary>
/// <param name="uri">The URI of the content.</param>
/// <returns>A <see cref="ContentResourceInfo"/> containing the content from the <paramref name="uri"/>.</returns>
public static ContentResourceInfo ResolveFromFile(Uri uri)
{
if (uri == null)
{
throw new ArgumentNullException(nameof(uri));
}
if (uri.IsAbsoluteUri && !uri.IsFile)
{
throw new ArgumentException("Absolute uri is not in a file form.");
}
Assembly assembly = Assembly.GetEntryAssembly();
if (!uri.IsAbsoluteUri && assembly != null) // Relative to current directory
{
string currentDirectory = Path.GetDirectoryName(assembly.Location) + "\\";
Uri baseUri = new Uri(currentDirectory);
uri = new Uri(baseUri, uri);
}
WebRequest webRequest = WebRequest.Create(uri);
WebResponse webResponse = webRequest.GetResponse();
ContentResourceInfo contentResourceInfo = new ContentResourceInfo(webResponse.GetResponseStream(), webResponse.ContentType, UriResolutionType.File);
return(contentResourceInfo);
}
private static ContentResourceInfo ResolveByTrial(Uri uri, params UriResolutionType[] trialResolutionTypes)
{
ContentResourceInfo contentResourceInfo = null;
foreach (UriResolutionType trialResolutionType in trialResolutionTypes)
{
try
{
contentResourceInfo = trialResolutionType switch
{
UriResolutionType.Web => ResolveFromWeb(uri),
UriResolutionType.File => ResolveFromFile(uri),
UriResolutionType.PackageResource => ResolveFromPackageResource(uri),
UriResolutionType.PackageContent => ResolveFromPackageContent(uri),
UriResolutionType.PackageSiteOfOrigin => ResolveFromPackageSiteOfOrigin(uri)
};
if (contentResourceInfo != null)
{
break;
}
}
catch { /* Ignored */ }
}
return(contentResourceInfo);
}
/// <summary>
/// Fetches the package resource content from the provided <paramref name="uri"/> as a <see cref="ContentResourceInfo"/>.
/// </summary>
/// <param name="uri">The URI of the content.</param>
/// <returns>A <see cref="ContentResourceInfo"/> containing the content from the <paramref name="uri"/>. Returns null if content is not found.</returns>
public static ContentResourceInfo ResolveFromPackageResource(Uri uri)
{
StreamResourceInfo streamResourceInfo = Application.GetResourceStream(uri);
ContentResourceInfo contentResourceInfo = null;
if (streamResourceInfo != null)
{
contentResourceInfo = new ContentResourceInfo(streamResourceInfo, UriResolutionType.PackageResource);
}
return(contentResourceInfo);
}
/// <summary>
/// Fetches the web content from the provided <paramref name="uri"/> as a <see cref="ContentResourceInfo"/>.
/// </summary>
/// <param name="uri">The URI of the content.</param>
/// <returns>A <see cref="ContentResourceInfo"/> containing the content from the <paramref name="uri"/>.</returns>
public static ContentResourceInfo ResolveFromWeb(Uri uri)
{
if (uri == null)
{
throw new ArgumentNullException(nameof(uri));
}
WebRequest webRequest = WebRequest.Create(uri);
WebResponse webResponse = webRequest.GetResponse();
ContentResourceInfo contentResourceInfo = new ContentResourceInfo(webResponse.GetResponseStream(), webResponse.ContentType, UriResolutionType.Web);
return(contentResourceInfo);
}
