protected SourceValidationResult ValidateSource(string source)
{
// If source string is not specified, get the current active package source from the host.
if (string.IsNullOrEmpty(source))
{
source = (string)GetPropertyValueFromHost(ActivePackageSourceKey);
}
// Look through all available sources (including those disabled) by matching source name and URL (or path).
var matchingSource = GetMatchingSource(source);
if (matchingSource != null)
{
return(SourceValidationResult.Valid(
source,
_sourceRepositoryProvider?.CreateRepository(matchingSource)));
}
// If we really can't find a source string, return an empty validation result.
if (string.IsNullOrEmpty(source))
{
return(SourceValidationResult.None);
}
return(CheckSourceValidity(source));
}
/// <summary>
/// If a relative local URI is passed, it converts it into an absolute URI.
/// If the local URI does not exist or it is neither http nor local type, then the source is rejected.
/// If the URI is not relative then no action is taken.
/// </summary>
/// <param name="source">The source string specified by -Source switch.</param>
/// <returns>The source validation result.</returns>
private SourceValidationResult CheckSourceValidity(string inputSource)
{
// Convert file:// to a local path if needed, this noops for other types
var source = UriUtility.GetLocalPath(inputSource);
// Convert a relative local URI into an absolute URI
var packageSource = new PackageSource(source);
Uri sourceUri;
if (Uri.TryCreate(source, UriKind.Relative, out sourceUri))
{
string outputPath;
bool? exists;
string errorMessage;
if (PSPathUtility.TryTranslatePSPath(SessionState, source, out outputPath, out exists, out errorMessage) &&
exists == true)
{
source = outputPath;
packageSource = new PackageSource(source);
}
else if (exists == false)
{
return(SourceValidationResult.UnknownSource(source));
}
}
else if (!packageSource.IsHttp)
{
// Throw and unknown source type error if the specified source is neither local nor http
return(SourceValidationResult.UnknownSourceType(source));
}
// Check if the source is a valid HTTP URI.
if (packageSource.IsHttp && packageSource.TrySourceAsUri == null)
{
return(SourceValidationResult.UnknownSource(source));
}
var sourceRepository = CreateRepositoryFromSource(source);
return(SourceValidationResult.Valid(source, sourceRepository));
}