private static bool HasInvalidParameters(SearchRequest request, string packageType)
{
// Requests with bad parameters yield no results. For the package type case, by specification a package type
// valid characters are the same as a package ID.
return(request.Skip > MaximumSkip ||
(packageType != null && !PackageIdValidator.IsValidPackageIdWithTimeout(packageType)));
}
private void CleanDownloadData(DownloadData data)
{
var invalidIdCount = 0;
var invalidVersionCount = 0;
var nonNormalizedVersionCount = 0;
foreach (var id in data.Keys.ToList())
{
var isValidId = id.Length <= PackageIdValidator.MaxPackageIdLength &&
PackageIdValidator.IsValidPackageIdWithTimeout(id);
if (!isValidId)
{
invalidIdCount++;
}
foreach (var version in data[id].Keys.ToList())
{
var isValidVersion = NuGetVersion.TryParse(version, out var parsedVersion);
if (!isValidVersion)
{
invalidVersionCount++;
}
if (!isValidId || !isValidVersion)
{
// Clear the download count if the ID or version is invalid.
data.SetDownloadCount(id, version, 0);
continue;
}
var normalizedVersion = parsedVersion.ToNormalizedString();
var isNormalizedVersion = StringComparer.OrdinalIgnoreCase.Equals(version, normalizedVersion);
if (!isNormalizedVersion)
{
nonNormalizedVersionCount++;
// Use the normalized version string if the original was not normalized.
var downloads = data.GetDownloadCount(id, version);
data.SetDownloadCount(id, version, 0);
data.SetDownloadCount(id, normalizedVersion, downloads);
}
}
}
_logger.LogInformation(
"There were {InvalidIdCount} invalid IDs, {InvalidVersionCount} invalid versions, and " +
"{NonNormalizedVersionCount} non-normalized IDs.",
invalidIdCount,
invalidVersionCount,
nonNormalizedVersionCount);
}
private bool TryGetSinglePackageId(
ParsedQuery parsed,
out string packageId)
{
if (parsed.Grouping.TryGetValue(QueryField.PackageId, out var terms) &&
terms.Count == 1)
{
packageId = terms.First();
if (packageId.Length <= PackageIdValidator.MaxPackageIdLength &&
PackageIdValidator.IsValidPackageIdWithTimeout(packageId))
{
return(true);
}
}
packageId = null;
return(false);
}
private void ApplySearchIndexFilter(
SearchParameters searchParameters,
SearchRequest request,
bool isDefaultSearch,
string packageType)
{
var searchFilters = GetSearchFilters(request);
var filterString = $"{IndexFields.Search.SearchFilters} eq '{DocumentUtilities.GetSearchFilterString(searchFilters)}'";
if (isDefaultSearch)
{
filterString += $" and ({IndexFields.Search.IsExcludedByDefault} eq false or {IndexFields.Search.IsExcludedByDefault} eq null)";
}
// Verify that the package type only has valid package ID characters so we don't need to worry about
// escaping quotes and such.
if (packageType != null && PackageIdValidator.IsValidPackageIdWithTimeout(packageType))
{
filterString += $" and {IndexFields.Search.FilterablePackageTypes}/any(p: p eq '{packageType.ToLowerInvariant()}')";
}
searchParameters.Filter = filterString;
}
private static bool IsId(string query)
{
return(query.Length <= PackageIdValidator.MaxPackageIdLength &&
PackageIdValidator.IsValidPackageIdWithTimeout(query));
}
