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| 1 | +namespace Microsoft.ComponentDetection.Detectors.NuGet; |
| 2 | + |
| 3 | +using System; |
| 4 | +using System.Collections.Generic; |
| 5 | +using System.Linq; |
| 6 | +using System.Threading; |
| 7 | +using Microsoft.Build.Locator; |
| 8 | +using Microsoft.Build.Logging.StructuredLogger; |
| 9 | +using Microsoft.ComponentDetection.Contracts; |
| 10 | +using Microsoft.ComponentDetection.Contracts.Internal; |
| 11 | +using Microsoft.ComponentDetection.Contracts.TypedComponent; |
| 12 | +using Microsoft.Extensions.Logging; |
| 13 | + |
| 14 | +using Task = System.Threading.Tasks.Task; |
| 15 | + |
| 16 | +public class NuGetMSBuildBinaryLogComponentDetector : FileComponentDetector |
| 17 | +{ |
| 18 | + private static readonly HashSet<string> TopLevelPackageItemNames = new HashSet<string>(StringComparer.OrdinalIgnoreCase) |
| 19 | + { |
| 20 | + "PackageReference", |
| 21 | + }; |
| 22 | + |
| 23 | + // the items listed below represent collection names that NuGet will resolve a package into, along with the metadata value names to get the package name and version |
| 24 | + private static readonly Dictionary<string, (string NameMetadata, string VersionMetadata)> ResolvedPackageItemNames = new Dictionary<string, (string, string)>(StringComparer.OrdinalIgnoreCase) |
| 25 | + { |
| 26 | + ["NativeCopyLocalItems"] = ("NuGetPackageId", "NuGetPackageVersion"), |
| 27 | + ["ResourceCopyLocalItems"] = ("NuGetPackageId", "NuGetPackageVersion"), |
| 28 | + ["RuntimeCopyLocalItems"] = ("NuGetPackageId", "NuGetPackageVersion"), |
| 29 | + ["ResolvedAnalyzers"] = ("NuGetPackageId", "NuGetPackageVersion"), |
| 30 | + ["_PackageDependenciesDesignTime"] = ("Name", "Version"), |
| 31 | + }; |
| 32 | + |
| 33 | + private static bool isMSBuildRegistered; |
| 34 | + |
| 35 | + public NuGetMSBuildBinaryLogComponentDetector( |
| 36 | + IObservableDirectoryWalkerFactory walkerFactory, |
| 37 | + ILogger<NuGetMSBuildBinaryLogComponentDetector> logger) |
| 38 | + { |
| 39 | + this.Scanner = walkerFactory; |
| 40 | + this.Logger = logger; |
| 41 | + } |
| 42 | + |
| 43 | + public override string Id { get; } = "NuGetMSBuildBinaryLog"; |
| 44 | + |
| 45 | + public override IEnumerable<string> Categories => new[] { Enum.GetName(typeof(DetectorClass), DetectorClass.NuGet) }; |
| 46 | + |
| 47 | + public override IList<string> SearchPatterns { get; } = new List<string> { "*.binlog" }; |
| 48 | + |
| 49 | + public override IEnumerable<ComponentType> SupportedComponentTypes { get; } = new[] { ComponentType.NuGet }; |
| 50 | + |
| 51 | + public override int Version { get; } = 1; |
| 52 | + |
| 53 | + private static void ProcessResolvedPackageReference(Dictionary<string, HashSet<string>> topLevelDependencies, Dictionary<string, Dictionary<string, string>> projectResolvedDependencies, NamedNode node) |
| 54 | + { |
| 55 | + var doRemoveOperation = node is RemoveItem; |
| 56 | + var doAddOperation = node is AddItem; |
| 57 | + if (TopLevelPackageItemNames.Contains(node.Name)) |
| 58 | + { |
| 59 | + var projectEvaluation = node.GetNearestParent<ProjectEvaluation>(); |
| 60 | + if (projectEvaluation is not null) |
| 61 | + { |
| 62 | + foreach (var child in node.Children.OfType<Item>()) |
| 63 | + { |
| 64 | + var packageName = child.Name; |
| 65 | + if (!topLevelDependencies.TryGetValue(projectEvaluation.ProjectFile, out var topLevel)) |
| 66 | + { |
| 67 | + topLevel = new(StringComparer.OrdinalIgnoreCase); |
| 68 | + topLevelDependencies[projectEvaluation.ProjectFile] = topLevel; |
| 69 | + } |
| 70 | + |
| 71 | + if (doRemoveOperation) |
| 72 | + { |
| 73 | + topLevel.Remove(packageName); |
| 74 | + } |
| 75 | + |
| 76 | + if (doAddOperation) |
| 77 | + { |
| 78 | + topLevel.Add(packageName); |
| 79 | + } |
| 80 | + } |
| 81 | + } |
| 82 | + } |
| 83 | + else if (ResolvedPackageItemNames.TryGetValue(node.Name, out var metadataNames)) |
| 84 | + { |
| 85 | + var nameMetadata = metadataNames.NameMetadata; |
| 86 | + var versionMetadata = metadataNames.VersionMetadata; |
| 87 | + var originalProject = node.GetNearestParent<Project>(); |
| 88 | + if (originalProject is not null) |
| 89 | + { |
| 90 | + foreach (var child in node.Children.OfType<Item>()) |
| 91 | + { |
| 92 | + var packageName = GetChildMetadataValue(child, nameMetadata); |
| 93 | + var packageVersion = GetChildMetadataValue(child, versionMetadata); |
| 94 | + if (packageName is not null && packageVersion is not null) |
| 95 | + { |
| 96 | + var project = originalProject; |
| 97 | + while (project is not null) |
| 98 | + { |
| 99 | + if (!projectResolvedDependencies.TryGetValue(project.ProjectFile, out var projectDependencies)) |
| 100 | + { |
| 101 | + projectDependencies = new(StringComparer.OrdinalIgnoreCase); |
| 102 | + projectResolvedDependencies[project.ProjectFile] = projectDependencies; |
| 103 | + } |
| 104 | + |
| 105 | + if (doRemoveOperation) |
| 106 | + { |
| 107 | + projectDependencies.Remove(packageName); |
| 108 | + } |
| 109 | + |
| 110 | + if (doAddOperation) |
| 111 | + { |
| 112 | + projectDependencies[packageName] = packageVersion; |
| 113 | + } |
| 114 | + |
| 115 | + project = project.GetNearestParent<Project>(); |
| 116 | + } |
| 117 | + } |
| 118 | + } |
| 119 | + } |
| 120 | + } |
| 121 | + } |
| 122 | + |
| 123 | + private static string GetChildMetadataValue(TreeNode node, string metadataItemName) |
| 124 | + { |
| 125 | + var metadata = node.Children.OfType<Metadata>(); |
| 126 | + var metadataValue = metadata.FirstOrDefault(m => m.Name.Equals(metadataItemName, StringComparison.OrdinalIgnoreCase))?.Value; |
| 127 | + return metadataValue; |
| 128 | + } |
| 129 | + |
| 130 | + protected override Task OnFileFoundAsync(ProcessRequest processRequest, IDictionary<string, string> detectorArgs, CancellationToken cancellationToken = default) |
| 131 | + { |
| 132 | + try |
| 133 | + { |
| 134 | + if (!isMSBuildRegistered) |
| 135 | + { |
| 136 | + // this must happen once per process, and never again |
| 137 | + var defaultInstance = MSBuildLocator.QueryVisualStudioInstances().First(); |
| 138 | + MSBuildLocator.RegisterInstance(defaultInstance); |
| 139 | + isMSBuildRegistered = true; |
| 140 | + } |
| 141 | + |
| 142 | + var singleFileComponentRecorder = this.ComponentRecorder.CreateSingleFileComponentRecorder(processRequest.ComponentStream.Location); |
| 143 | + var buildRoot = BinaryLog.ReadBuild(processRequest.ComponentStream.Stream); |
| 144 | + this.RecordLockfileVersion(buildRoot.FileFormatVersion); |
| 145 | + this.ProcessBinLog(buildRoot, singleFileComponentRecorder); |
| 146 | + } |
| 147 | + catch (Exception e) |
| 148 | + { |
| 149 | + // If something went wrong, just ignore the package |
| 150 | + this.Logger.LogError(e, "Failed to process MSBuild binary log {BinLogFile}", processRequest.ComponentStream.Location); |
| 151 | + } |
| 152 | + |
| 153 | + return Task.CompletedTask; |
| 154 | + } |
| 155 | + |
| 156 | + protected override Task OnDetectionFinishedAsync() |
| 157 | + { |
| 158 | + return Task.CompletedTask; |
| 159 | + } |
| 160 | + |
| 161 | + private void ProcessBinLog(Build buildRoot, ISingleFileComponentRecorder componentRecorder) |
| 162 | + { |
| 163 | + // maps a project path to a set of resolved dependencies |
| 164 | + var projectTopLevelDependencies = new Dictionary<string, HashSet<string>>(StringComparer.OrdinalIgnoreCase); |
| 165 | + var projectResolvedDependencies = new Dictionary<string, Dictionary<string, string>>(StringComparer.OrdinalIgnoreCase); |
| 166 | + buildRoot.VisitAllChildren<BaseNode>(node => |
| 167 | + { |
| 168 | + switch (node) |
| 169 | + { |
| 170 | + case NamedNode namedNode when namedNode is AddItem or RemoveItem: |
| 171 | + ProcessResolvedPackageReference(projectTopLevelDependencies, projectResolvedDependencies, namedNode); |
| 172 | + break; |
| 173 | + default: |
| 174 | + break; |
| 175 | + } |
| 176 | + }); |
| 177 | + |
| 178 | + // dependencies were resolved per project, we need to re-arrange them to be per package/version |
| 179 | + var projectsPerPackage = new Dictionary<string, HashSet<string>>(StringComparer.OrdinalIgnoreCase); |
| 180 | + foreach (var projectPath in projectResolvedDependencies.Keys) |
| 181 | + { |
| 182 | + var projectDependencies = projectResolvedDependencies[projectPath]; |
| 183 | + foreach (var (packageName, packageVersion) in projectDependencies) |
| 184 | + { |
| 185 | + var key = $"{packageName}/{packageVersion}"; |
| 186 | + if (!projectsPerPackage.TryGetValue(key, out var projectPaths)) |
| 187 | + { |
| 188 | + projectPaths = new HashSet<string>(StringComparer.OrdinalIgnoreCase); |
| 189 | + projectsPerPackage[key] = projectPaths; |
| 190 | + } |
| 191 | + |
| 192 | + projectPaths.Add(projectPath); |
| 193 | + } |
| 194 | + } |
| 195 | + |
| 196 | + // report it all |
| 197 | + foreach (var (packageNameAndVersion, projectPaths) in projectsPerPackage) |
| 198 | + { |
| 199 | + var parts = packageNameAndVersion.Split('/', 2); |
| 200 | + var packageName = parts[0]; |
| 201 | + var packageVersion = parts[1]; |
| 202 | + var component = new NuGetComponent(packageName, packageVersion); |
| 203 | + var libraryComponent = new DetectedComponent(component); |
| 204 | + foreach (var projectPath in projectPaths) |
| 205 | + { |
| 206 | + libraryComponent.FilePaths.Add(projectPath); |
| 207 | + } |
| 208 | + |
| 209 | + componentRecorder.RegisterUsage(libraryComponent); |
| 210 | + } |
| 211 | + } |
| 212 | +} |
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