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//
// AddinRegistryUpdater.cs
//
// Author:
// Lluis Sanchez <llsan@microsoft.com>
//
// Copyright (c) 2018 Microsoft
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
using System;
using System.IO;
namespace Mono.Addins.Database
{
class AddinRegistryUpdater: AddinFolderVisitor
{
AddinDatabase database;
AddinScanFolderInfo currentFolderInfo;
AddinScanResult scanResult;
public AddinRegistryUpdater (AddinDatabase database, AddinScanResult scanResult): base (database)
{
this.database = database;
this.scanResult = scanResult;
ScanContext = scanResult.ScanContext;
}
protected override void OnVisitFolder (IProgressStatus monitor, string path, string domain, bool recursive)
{
AddinScanFolderInfo folderInfo;
if (!database.GetFolderInfoForPath (monitor, path, out folderInfo)) {
// folderInfo file was corrupt.
// Just in case, we are going to regenerate all relation data.
if (!FileSystem.DirectoryExists (path))
scanResult.RegenerateRelationData = true;
} else {
// Directory is included but it doesn't exist. Ignore it.
if (folderInfo == null && !FileSystem.DirectoryExists (path))
return;
}
// if domain is null it means that a new domain has to be created.
// Look for an add-in scan data index file. If it is present, it means the folder has been pre-scanned
var dirScanDataIndex = AddinScanDataIndex.LoadFromFolder (monitor, path);
if (dirScanDataIndex != null && scanResult.CleanGeneratedAddinScanDataFiles) {
// Remove any existing dir.addindata if data is being generated
dirScanDataIndex.Delete ();
dirScanDataIndex = null;
}
bool sharedFolder = domain == AddinDatabase.GlobalDomain;
bool isNewFolder = folderInfo == null;
bool folderHasIndex = dirScanDataIndex != null;
if (isNewFolder) {
// No folder info. It is the first time this folder is scanned.
// There is no need to store this object if the folder does not
// contain add-ins.
folderInfo = new AddinScanFolderInfo (path);
folderInfo.FolderHasScanDataIndex = folderHasIndex;
} else if (folderInfo.FolderHasScanDataIndex != folderHasIndex) {
// A scan data index appeared or disappeared. The information in folderInfo is not reliable.
// Update the folder info and regenerate everything.
scanResult.RegenerateRelationData = true;
folderInfo.Reset ();
scanResult.RegisterModifiedFolderInfo (folderInfo);
folderInfo.FolderHasScanDataIndex = folderHasIndex;
}
if (!sharedFolder && (folderInfo.SharedFolder || folderInfo.Domain != domain)) {
// If the folder already has a domain, reuse it
if (domain == null && folderInfo.RootsDomain != null && folderInfo.RootsDomain != AddinDatabase.GlobalDomain)
domain = folderInfo.RootsDomain;
else if (domain == null) {
folderInfo.Domain = domain = database.GetUniqueDomainId ();
scanResult.RegenerateRelationData = true;
} else {
folderInfo.Domain = domain;
if (!isNewFolder) {
// Domain has changed. Update the folder info and regenerate everything.
scanResult.RegenerateRelationData = true;
scanResult.RegisterModifiedFolderInfo (folderInfo);
}
}
} else if (!folderInfo.SharedFolder && sharedFolder) {
scanResult.RegenerateRelationData = true;
}
folderInfo.SharedFolder = sharedFolder;
// If there is no domain assigned to the host, get one now
if (scanResult.Domain == AddinDatabase.UnknownDomain)
scanResult.Domain = domain;
// Discard folders not belonging to the required domain
if (scanResult.Domain != null && domain != scanResult.Domain && domain != AddinDatabase.GlobalDomain)
return;
if (monitor.LogLevel > 1)
monitor.Log ("Checking: " + path);
if (dirScanDataIndex != null) {
// Instead of scanning the folder, just register the files in the index
foreach (var file in dirScanDataIndex.Files)
RegisterFileToScan (monitor, file.FileName, folderInfo, file);
foreach (var file in dirScanDataIndex.Assemblies)
scanResult.AssemblyIndex.AddAssemblyLocation (file);
} else {
currentFolderInfo = folderInfo;
base.OnVisitFolder (monitor, path, domain, recursive);
if (!FileSystem.DirectoryExists (path)) {
// The folder has been deleted. All add-ins defined in that folder should also be deleted.
scanResult.RegenerateRelationData = true;
scanResult.ChangesFound = true;
if (scanResult.CheckOnly)
return;
database.DeleteFolderInfo (monitor, folderInfo);
}
}
// Look for deleted add-ins.
UpdateDeletedAddins (monitor, folderInfo);
}
protected override void OnVisitAddinManifestFile (IProgressStatus monitor, string file)
{
RegisterFileToScan (monitor, file, currentFolderInfo, null);
}
protected override void OnVisitAssemblyFile (IProgressStatus monitor, string file)
{
RegisterFileToScan (monitor, file, currentFolderInfo, null);
scanResult.AssemblyIndex.AddAssemblyLocation (file);
}
public void UpdateDeletedAddins (IProgressStatus monitor, AddinScanFolderInfo folderInfo)
{
var missing = folderInfo.GetMissingAddins (FileSystem);
if (missing.Count > 0) {
if (FileSystem.DirectoryExists (folderInfo.Folder))
scanResult.RegisterModifiedFolderInfo (folderInfo);
scanResult.ChangesFound = true;
if (scanResult.CheckOnly)
return;
foreach (AddinFileInfo info in missing) {
database.UninstallAddin (monitor, info.Domain, info.AddinId, info.File, scanResult);
}
}
}
void RegisterFileToScan (IProgressStatus monitor, string file, AddinScanFolderInfo folderInfo, AddinScanData scanData)
{
AddinFileInfo finfo = folderInfo.GetAddinFileInfo (file);
bool added = false;
if (finfo != null && (!finfo.IsAddin || finfo.Domain == folderInfo.GetDomain (finfo.IsRoot)) && !finfo.HasChanged (FileSystem, scanData?.MD5) && !scanResult.RegenerateAllData) {
if (finfo.ScanError) {
// Always schedule the file for scan if there was an error in a previous scan.
// However, don't set ChangesFound=true, in this way if there isn't any other
// change in the registry, the file won't be scanned again.
scanResult.AddFileToScan (file, folderInfo, scanData);
added = true;
}
if (!finfo.IsAddin)
return;
if (database.AddinDescriptionExists (finfo.Domain, finfo.AddinId)) {
// It is an add-in and it has not changed. Paths in the ignore list
// are still valid, so they can be used.
if (finfo.IgnorePaths != null)
scanResult.ScanContext.AddPathsToIgnore (finfo.IgnorePaths);
return;
}
}
scanResult.ChangesFound = true;
if (!scanResult.CheckOnly && !added)
scanResult.AddFileToScan (file, folderInfo, scanData);
}
}
}
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