public bool YieldFromSwidtag(DynamicElement provider, string requiredVersion, string minimumVersion, string maximumVersion, string searchKey)
{
if (provider == null)
{
throw new ArgumentNullException("provider");
}
var name = provider.Attributes["name"];
FourPartVersion version = provider.Attributes["version"];
var versionScheme = provider.Attributes["versionScheme"];
var packageFilename = provider.XPath("/swid:SoftwareIdentity/swid:Meta[@targetFilename]").GetAttribute("targetFilename");
var summary = provider.XPath("/swid:SoftwareIdentity/swid:Meta[@summary]").GetAttribute("summary");
if (AnyNullOrEmpty(name, version, versionScheme, packageFilename))
{
Debug("Skipping yield on swid due to missing field \r\n", provider.ToString());
return(true);
}
if (!string.IsNullOrEmpty(requiredVersion) && version != requiredVersion)
{
return(true);
}
if (!string.IsNullOrEmpty(minimumVersion) && version < minimumVersion)
{
return(true);
}
if (!string.IsNullOrEmpty(maximumVersion) && version > maximumVersion)
{
return(true);
}
if (YieldSoftwareIdentity(name, name, version, versionScheme, summary, null, searchKey, null, packageFilename))
{
// note: temporary until we actaully support swidtags in the core.
// yield all the meta/attributes
if (provider.XPath("/swid:SoftwareIdentity/swid:Meta").Any(
meta => meta.Attributes.Any(attribute => !YieldSoftwareMetadata(name, attribute.Name.LocalName, attribute.Value))))
{
return(false);
}
if (provider.XPath("/swid:SoftwareIdentity/swid:Link").Any(
link => !YieldLink(name, link.Attributes["href"], link.Attributes["rel"], link.Attributes["type"], link.Attributes["ownership"], link.Attributes["use"], link.Attributes["media"], link.Attributes["artifact"])))
{
return(false);
}
if (provider.XPath("/swid:SoftwareIdentity/swid:Entity").Any(
entity => !YieldEntity(name, entity.Attributes["name"], entity.Attributes["regid"], entity.Attributes["role"], entity.Attributes["thumbprint"])))
{
return(false);
}
if (!YieldSoftwareMetadata(name, "FromTrustedSource", true.ToString()))
{
return(false);
}
}
return(true);
}
internal IEnumerable <DynamicElement> GetProviders(DynamicElement document)
{
var artifacts = document.XPath("/swid:SoftwareIdentity/swid:Link[@rel='component' and @oneget:type='provider']").GetAttributes("artifact").Distinct().ToArray();
return(artifacts.Select(each => GetProvider(document, each)).Where(each => each != null));
}
internal DynamicElement GetProvider(DynamicElement document, string name)
{
var links = document.XPath("/swid:SoftwareIdentity/swid:Link[@rel='component' and @artifact='{0}' and @oneget:type='provider']", name.ToLowerInvariant());
return(DownloadSwidtag(links.GetAttributes("href")));
}
private void InstallAssemblyProvider(DynamicElement provider, string fastPath, BootstrapRequest request)
{
if (!Directory.Exists(request.DestinationPath))
{
request.Error(ErrorCategory.InvalidOperation, fastPath, Constants.Messages.DestinationPathNotSet);
return;
}
var targetFilename = provider.XPath("/swid:SoftwareIdentity/swid:Meta[@targetFilename]").GetAttribute("targetFilename");
if (string.IsNullOrEmpty(targetFilename))
{
request.Error(ErrorCategory.InvalidOperation, fastPath, Constants.Messages.InvalidFilename);
return;
}
targetFilename = Path.GetFileName(targetFilename);
var targetFile = Path.Combine(request.DestinationPath, targetFilename);
string tmpFile = null;
var failedBecauseInvalid = false;
// download the file
foreach (var link in provider.XPath("/swid:SoftwareIdentity/swid:Link[@rel = 'installationmedia']"))
{
var href = link.Attributes["href"];
if (string.IsNullOrEmpty(href) || !Uri.IsWellFormedUriString(href, UriKind.Absolute))
{
request.Debug("Bad or missing uri: {0}", href);
continue;
}
try {
tmpFile = targetFilename.GenerateTemporaryFilename();
request.Debug("Downloading '{0}' to '{1}'", href, tmpFile);
if (!request.DownloadFileToLocation(new Uri(href), tmpFile))
{
request.Debug("Failed download of '{0}'", href);
continue;
}
request.Debug("Verifying the package");
var valid = request.IsSignedAndTrusted(tmpFile, request);
if (!valid)
{
request.Debug("Not Valid file '{0}' => '{1}'", href, tmpFile);
failedBecauseInvalid = true;
request.Warning(Constants.Messages.FileFailedVerification, href);
#if !DEBUG
tmpFile.TryHardToDelete();
continue;
#endif
}
// looks good! let's keep it
if (File.Exists(targetFile))
{
request.Debug("Removing old file '{0}'", targetFile);
targetFile.TryHardToDelete();
}
// is that file still there?
if (File.Exists(targetFile))
{
request.Error(ErrorCategory.InvalidOperation, fastPath, Constants.Messages.UnableToRemoveFile, targetFile);
return;
}
request.Debug("Copying file '{0}' to '{1}'", tmpFile, targetFile);
File.Copy(tmpFile, targetFile);
if (File.Exists(targetFile))
{
// looks good to me.
request.YieldFromSwidtag(provider, null, null, null, fastPath);
PackageManager._instance.LoadProviders(request);
return;
}
}
catch (Exception e) {
e.Dump();
}
finally {
if (!string.IsNullOrEmpty(tmpFile))
{
tmpFile.TryHardToDelete();
}
}
}
if (failedBecauseInvalid)
{
request.Error(ErrorCategory.InvalidData, fastPath, Constants.Messages.FileFailedVerification, fastPath);
}
}
private void InstallModuleProvider(DynamicElement provider, string fastPath, BootstrapRequest request)
{
// This is a prototype for a general provider installer
// really, this is going away as soon as we have a real swidtag provider.
// 'package' may not be the best rel= type.
foreach (var link in provider.XPath("/swid:SoftwareIdentity/swid:Link[@rel = 'package']"))
{
var href = link.Attributes["href"];
// NOT THIS -> at this point href should either be url to a location (that a provider will recognize)
// JUST THIS -> or more likely should be a prototype canonical id: <provider>:<packagename>[/version][#source]
//
if (string.IsNullOrEmpty(href) || !Uri.IsWellFormedUriString(href, UriKind.Absolute))
{
request.Debug("Bad or missing uri: {0}", href);
continue;
}
var artifact = link.Attributes["artifact"];
try {
var uri = new Uri(href);
var providers = request.SelectProviders(uri.Scheme, request).ToArray();
if (providers.Length == 0)
{
// no known provider by that name right now.
continue;
}
var packageId = uri.Host;
var packageVersion = uri.PathAndQuery;
var source = uri.Fragment;
if (string.IsNullOrEmpty(packageId))
{
continue;
}
var customRequest = request.Extend <Request>(new {
GetSources = new Func <IEnumerable <string> >(() => {
if (string.IsNullOrWhiteSpace(source))
{
return(new string[0]);
}
return(new string[] {
source
});
})
});
var packages = providers[0].FindPackage(packageId, packageVersion, null, null, 0, customRequest).Wait(60);
var pkgs = packages.ToArray();
if (pkgs.Length < 1)
{
if (string.IsNullOrWhiteSpace(packageVersion))
{
request.Warning("Unable to find package '{0}' to bootstrap", packageId);
}
else
{
request.Warning("Unable to find package '{0}/{1}' to bootstrap", packageId, packageVersion);
}
continue;
}
if (pkgs.Length > 1)
{
if (string.IsNullOrWhiteSpace(packageVersion))
{
request.Warning("Package '{0}' matched more than one package", packageId);
}
else
{
request.Warning("Package '{0}/{1}' matched more than one package", packageId, packageVersion);
}
continue;
}
var installedPackages = providers[0].InstallPackage(pkgs[0], customRequest).Wait(120).ToArray();
if (request.IsCanceled)
{
return;
}
bool installed = false;
foreach (var pkg in installedPackages)
{
installed = true;
request.YieldSoftwareIdentity(pkg.FastPackageReference, pkg.Name, pkg.Version, pkg.VersionScheme, pkg.Summary, pkg.Source, pkg.SearchKey, pkg.FullPath, pkg.PackageFilename);
}
if (request.IsCanceled)
{
return;
}
if (installed)
{
// it installed ok!
PackageManager._instance.LoadProviders(request);
}
else
{
request.Error(ErrorCategory.InvalidOperation, fastPath, Constants.Messages.FailedProviderBootstrap, fastPath);
}
}
catch (Exception e) {
e.Dump();
}
}
}
private void InstallProviderFromInstaller(DynamicElement provider, string fastPath, BootstrapRequest request)
{
string tmpFile = null;
var failedBecauseInvalid = false;
// download the file
foreach (var link in provider.XPath("/swid:SoftwareIdentity/swid:Link[@rel = 'installationmedia']"))
{
var href = link.Attributes["href"];
if (string.IsNullOrEmpty(href) || !Uri.IsWellFormedUriString(href, UriKind.Absolute))
{
request.Debug("Bad or missing uri: {0}", href);
continue;
}
var artifact = link.Attributes["artifact"];
try {
tmpFile = artifact.GenerateTemporaryFilename();
request.Debug("Downloading '{0}' to '{1}'", href, tmpFile);
if (!request.DownloadFileToLocation(new Uri(href), tmpFile))
{
request.Debug("Failed download of '{0}'", href);
continue;
}
request.Debug("Verifying the package");
var valid = request.IsSignedAndTrusted(tmpFile, request);
if (!valid)
{
request.Debug("Not Valid file '{0}' => '{1}'", href, tmpFile);
failedBecauseInvalid = true;
request.Warning(Constants.Messages.FileFailedVerification, href);
#if !DEBUG
tmpFile.TryHardToDelete();
continue;
#endif
}
// we have a valid file.
// run the installer
if (request.Install(tmpFile, "", request))
{
// it installed ok!
request.YieldFromSwidtag(provider, null, null, null, fastPath);
PackageManager._instance.LoadProviders(request);
}
else
{
request.Error(ErrorCategory.InvalidOperation, fastPath, Constants.Messages.FailedProviderBootstrap, fastPath);
}
} catch (Exception e) {
e.Dump();
}
finally {
if (!string.IsNullOrEmpty(tmpFile))
{
tmpFile.TryHardToDelete();
}
}
}
if (failedBecauseInvalid)
{
request.Error(ErrorCategory.InvalidData, fastPath, Constants.Messages.FileFailedVerification, fastPath);
}
}
