/// <summary> /// Downloads all required signature files from the backend. /// </summary> /// <param name="backend">The backend to read from</param> /// <param name="entries">The flattened list of manifests</param> /// <param name="tempfolder">The tempfolder set for this operation</param> /// <param name="allowHashFail">True to ignore files with failed hash signature</param> /// <returns>A list of file archives</returns> private List<KeyValuePair<ManifestEntry, Library.Interface.ICompression>> FindPatches(BackendWrapper backend, List<ManifestEntry> entries, string tempfolder, bool allowHashFail, CommunicationStatistics stat) { List<KeyValuePair<ManifestEntry, Library.Interface.ICompression>> patches = new List<KeyValuePair<ManifestEntry, Library.Interface.ICompression>>(); using (new Logging.Timer("Reading incremental data")) { OperationProgress(this, GetOperationType(), stat.OperationMode, (int)(m_progress * 100), -1, Strings.Interface.StatusReadingIncrementalData, ""); //Calculate the total number of files to download //, and verify their order int incCount = 0; foreach (ManifestEntry be in entries) { int volNo = 0; //Prevent order based bugs if (entries.IndexOf(be) > 0) if (entries[entries.IndexOf(be) - 1].Time >= be.Time) throw new Exception(Strings.Interface.BadSortingDetectedError); incCount++; foreach (KeyValuePair<SignatureEntry, ContentEntry> bes in be.Volumes) { incCount++; if (volNo + 1 != bes.Key.Volumenumber || bes.Key.Volumenumber != bes.Value.Volumenumber) throw new Exception(Strings.Interface.BadVolumeSortOrder); volNo++; } } //The incremental part has a fixed cost, and each file has a fixed fraction of that double unitCost = m_incrementalFraction / incCount; //Ensure that the manifest chain has not been tampered with // since we will read all manifest files anyway, there is no harm in doing it here if (!m_options.DontReadManifests && entries.Count > 0) VerifyManifestChain(backend, entries[entries.Count - 1]); foreach (ManifestEntry be in entries) { m_progress += unitCost; Manifestfile manifest = GetManifest(backend, be); foreach (KeyValuePair<SignatureEntry, ContentEntry> bes in be.Volumes) { m_progress += unitCost; //Skip non-listed incrementals if (manifest.SignatureHashes != null && bes.Key.Volumenumber > manifest.SignatureHashes.Count) { backend.AddOrphan(bes.Key); backend.AddOrphan(bes.Value); continue; } OperationProgress(this, GetOperationType(), stat.OperationMode, (int)(m_progress * 100), -1, string.Format(Strings.Interface.StatusReadingSignatureFile, be.Time.ToShortDateString() + " " + be.Time.ToShortTimeString(), bes.Key.Volumenumber), ""); string filename = System.IO.Path.Combine(tempfolder, "patch-" + patches.Count.ToString() + ".zip"); //Check just before we download stuff CheckLiveControl(); try { using (new Logging.Timer("Get " + bes.Key.Filename)) backend.Get(bes.Key, manifest, filename, manifest.SignatureHashes == null ? null : manifest.SignatureHashes[bes.Key.Volumenumber - 1]); } catch (BackendWrapper.HashMismathcException hme) { if (allowHashFail) { if (stat != null) stat.LogError(string.Format(Strings.Interface.FileHashFailure, hme.Message), hme); continue; } else throw; } patches.Add(new KeyValuePair<ManifestEntry,XervBackup.Library.Interface.ICompression>(be, DynamicLoader.CompressionLoader.GetModule(bes.Key.Compression, filename, m_options.RawOptions))); } } } backend.DeleteOrphans(true); return patches; }
/// <summary> /// Will attempt to read the manifest file, optionally reverting to the secondary manifest if reading one fails. /// </summary> /// <param name="backend">The backendwrapper to read from</param> /// <param name="entry">The manifest to read</param> /// <returns>The parsed manifest</returns> private Manifestfile GetManifest(BackendWrapper backend, ManifestEntry entry) { if (m_options.DontReadManifests) { Manifestfile mf = new Manifestfile(); mf.SignatureHashes = null; mf.ContentHashes = null; return mf; } if (entry.ParsedManifest != null) return entry.ParsedManifest; else if (entry.Alternate != null && entry.Alternate.ParsedManifest != null) return entry.Alternate.ParsedManifest; if (OperationProgress != null && backend.Statistics != null) OperationProgress(this, GetOperationType(), backend.Statistics.OperationMode, (int)(m_progress * 100), -1, string.Format(Strings.Interface.StatusReadingManifest, entry.Time.ToShortDateString() + " " + entry.Time.ToShortTimeString()), ""); bool tryAlternateManifest = false; //This method has some very special logic to ensure correct handling of errors //The assumption is that it is possible to determine if the error occurred due to a // transfer problem or a corrupt file. If the former happens, the operation should // be retried, and thus an exception is thrown. If the latter, the file should // be ignored and the backup file should be used. // //We detect a parsing error, either directly or indirectly through CryptographicException, // and assume that a parsing error is an indication of a broken file. //All other errors are assumed to be transfer problems, and throws exceptions. // //This holds as long as the backend always throws an exception if a partial file // was downloaded. The FTP backend may not honor this, and some webservers // may ommit the "Content-Length" header, which will cause problems. //There is a guard agains partial downloads in BackendWrapper.GetInternal() using (new Logging.Timer("Get " + entry.Filename)) using (Utility.TempFile tf = new XervBackup.Library.Utility.TempFile()) { try { backend.Get(entry, null, tf, null); //We now have the file decrypted, if the next step fails, // its a broken xml or invalid content tryAlternateManifest = true; Manifestfile mf = new Manifestfile(tf, m_options.SkipFileHashChecks); if (string.IsNullOrEmpty(mf.SelfFilename)) mf.SelfFilename = entry.Filename; if (mf.ContentHashes != null && entry.Alternate != null) { //Special case, the manifest has not recorded all volumes, // we must see if the alternate manifest has more volumes if (entry.Volumes.Count > mf.ContentHashes.Count) { //Do not try the alternate, we just did tryAlternateManifest = false; Logging.Log.WriteMessage(string.Format(Strings.Interface.ReadingSecondaryManifestLogMessage, entry.Alternate.Filename), XervBackup.Library.Logging.LogMessageType.Information); Manifestfile amf = null; //Read the alternate file and try to differentiate between a defect file or a partial one bool defectFile = false; try { System.IO.File.Delete(tf); backend.Get(entry.Alternate, null, tf, null); } catch (System.Security.Cryptography.CryptographicException cex) { //We assume that CryptoException means partial file Logging.Log.WriteMessage(string.Format(Strings.Interface.SecondaryManifestReadErrorLogMessage, entry.Alternate.Filename, cex), XervBackup.Library.Logging.LogMessageType.Warning); defectFile = true; } if (!defectFile) { try { amf = new Manifestfile(tf, m_options.SkipFileHashChecks); } catch (Exception ex) { //Parsing error means partial file Logging.Log.WriteMessage(string.Format(Strings.Interface.SecondaryManifestReadErrorLogMessage, entry.Alternate.Filename, ex), XervBackup.Library.Logging.LogMessageType.Warning); defectFile = true; } } //If the alternate manifest is correct, assign it so we have a copy if (!defectFile && amf != null) { if (string.IsNullOrEmpty(amf.SelfFilename)) amf.SelfFilename = entry.Alternate.Filename; //If the alternate manifest has more files than the primary, we use that one if (amf.ContentHashes != null && amf.ContentHashes.Count > mf.ContentHashes.Count) { entry.Alternate.ParsedManifest = amf; if (m_options.SkipFileHashChecks) { mf.SignatureHashes = null; mf.ContentHashes = null; } return amf; } } } } if (m_options.SkipFileHashChecks) { mf.SignatureHashes = null; mf.ContentHashes = null; } entry.ParsedManifest = mf; return mf; } catch (Exception ex) { //Only try secondary if the parsing/decrypting fails, not if the transfer fails if (entry.Alternate != null && (ex is System.Security.Cryptography.CryptographicException || tryAlternateManifest)) { //TODO: If it is a version error, there is no need to read the alternate version Logging.Log.WriteMessage(string.Format(Strings.Interface.PrimaryManifestReadErrorLogMessage, entry.Filename, ex.Message), XervBackup.Library.Logging.LogMessageType.Warning); try { Logging.Log.WriteMessage(string.Format(Strings.Interface.ReadingSecondaryManifestLogMessage, entry.Alternate.Filename), XervBackup.Library.Logging.LogMessageType.Information); return GetManifest(backend, entry.Alternate); } catch (Exception ex2) { Logging.Log.WriteMessage(string.Format(Strings.Interface.SecondaryManifestReadErrorLogMessage, entry.Alternate.Filename, ex2.Message), XervBackup.Library.Logging.LogMessageType.Warning); } } //Report the original error throw; } } }
public List<KeyValuePair<BackupEntryBase, Exception>> VerifyBackupChain() { CommunicationStatistics stats = new CommunicationStatistics(XervBackupOperationMode.Verify); SetupCommonOptions(stats); List<KeyValuePair<BackupEntryBase, Exception>> results = new List<KeyValuePair<BackupEntryBase, Exception>>(); if (m_options.DontReadManifests) throw new InvalidOperationException(Strings.Interface.ManifestsMustBeRead); if (m_options.SkipFileHashChecks) throw new InvalidOperationException(Strings.Interface.CannotVerifyWithoutHashes); if (!string.IsNullOrEmpty(m_options.SignatureCachePath)) { stats.LogWarning(Strings.Interface.DisablingSignatureCacheForVerification, null); m_options.SignatureCachePath = null; } using (BackendWrapper backend = new BackendWrapper(stats, m_backend, m_options)) { //Find the spot in the chain where we start ManifestEntry bestFit = backend.GetBackupSet(m_options.RestoreTime); //Get the list of manifests to validate List<ManifestEntry> entries = new List<ManifestEntry>(); entries.Add(bestFit); entries.AddRange(bestFit.Incrementals); entries.Reverse(); foreach (ManifestEntry me in entries) { Manifestfile mf = null; try { mf = GetManifest(backend, me); VerifyBackupChainWithFiles(backend, me); if (mf.SignatureHashes.Count != me.Volumes.Count) results.Add(new KeyValuePair<BackupEntryBase,Exception>(me, new Exception(string.Format(Strings.Interface.ManifestAndFileCountMismatchError, mf.SelfFilename, mf.SignatureHashes.Count, me.Volumes.Count)))); else results.Add(new KeyValuePair<BackupEntryBase,Exception>(me, null)); } catch (Exception ex) { results.Add(new KeyValuePair<BackupEntryBase,Exception>(me, ex)); } if (mf != null) { int volumes = Math.Min(mf.SignatureHashes.Count, me.Volumes.Count); for(int i = 0; i <volumes; i++) { if (m_options.Verificationlevel == VerificationLevel.Signature || m_options.Verificationlevel == VerificationLevel.Full) { try { using(Utility.TempFile tf = new XervBackup.Library.Utility.TempFile()) backend.Get(me.Volumes[i].Key, mf, tf, mf.SignatureHashes[i]); results.Add(new KeyValuePair<BackupEntryBase, Exception>(me.Volumes[i].Key, null)); } catch (Exception ex) { results.Add(new KeyValuePair<BackupEntryBase,Exception>(me.Volumes[i].Key, ex)); } } if (m_options.Verificationlevel == VerificationLevel.Full) { try { using(Utility.TempFile tf = new XervBackup.Library.Utility.TempFile()) backend.Get(me.Volumes[i].Value, mf, tf, mf.ContentHashes[i]); results.Add(new KeyValuePair<BackupEntryBase, Exception>(me.Volumes[i].Value, null)); } catch (Exception ex) { results.Add(new KeyValuePair<BackupEntryBase,Exception>(me.Volumes[i].Value, ex)); } } } } } //Re-generate verification file if (m_options.CreateVerificationFile) { //Stop any async operations if (m_options.AsynchronousUpload) backend.ExtractPendingUploads(); VerificationFile vf = new VerificationFile(entries, new FilenameStrategy(m_options)); using (Utility.TempFile tf = new XervBackup.Library.Utility.TempFile()) { vf.Save(tf); tf.Protected = true; backend.Put(new VerificationEntry(entries[entries.Count - 1].Time), tf); } } } return results; }
/// <summary> /// Restores control files added to a backup. /// </summary> /// <param name="target">The folder into which to restore the files</param> /// <returns>A restore report</returns> public string RestoreControlFiles(string target) { RestoreStatistics rs = new RestoreStatistics(XervBackupOperationMode.RestoreControlfiles); SetupCommonOptions(rs); BackendWrapper backend = null; using (new Logging.Timer("Restore control files from " + m_backend + " to " + target)) { try { if (OperationStarted != null) OperationStarted(this, XervBackupOperation.Restore, rs.OperationMode, 0, -1, Strings.Interface.StatusStarted, ""); backend = new BackendWrapper(rs, m_backend, m_options); List<ManifestEntry> attempts = backend.GetBackupSets(); List<ManifestEntry> flatlist = new List<ManifestEntry>(); foreach (ManifestEntry be in attempts) { flatlist.Add(be); flatlist.AddRange(be.Incrementals); } flatlist.Reverse(); string prefix = Utility.Utility.AppendDirSeparator(RSync.RSyncDir.CONTROL_ROOT); foreach (ManifestEntry be in flatlist) { if (be.Volumes.Count > 0) using(Utility.TempFile z = new XervBackup.Library.Utility.TempFile()) { OperationProgress(this, XervBackupOperation.Restore, rs.OperationMode, 0, -1, string.Format(Strings.Interface.StatusReadingIncrementalFile, be.Volumes[0].Key.Filename), ""); Manifestfile mf = GetManifest(backend, be); OperationProgress(this, XervBackupOperation.Restore, rs.OperationMode, 0, -1, string.Format(Strings.Interface.StatusReadingIncrementalFile, be.Volumes[0].Key.Filename), ""); using (new Logging.Timer("Get " + be.Volumes[0].Key.Filename)) backend.Get(be.Volumes[0].Key, mf, z, mf.SignatureHashes == null ? null : mf.SignatureHashes[0]); using(Library.Interface.ICompression fz = DynamicLoader.CompressionLoader.GetModule(be.Volumes[0].Key.Compression, z, m_options.RawOptions)) { bool any = false; foreach (string f in fz.ListFiles(prefix)) { any = true; using (System.IO.Stream s1 = fz.OpenRead(f)) using (System.IO.Stream s2 = System.IO.File.Create(System.IO.Path.Combine(target, f.Substring(prefix.Length)))) Utility.Utility.CopyStream(s1, s2); } if (any) break; rs.LogError(string.Format(Strings.Interface.FailedToFindControlFilesMessage, be.Volumes[0].Key.Filename), null); } } } } finally { if (backend != null) backend.Dispose(); if (OperationCompleted != null) OperationCompleted(this, XervBackupOperation.Restore, rs.OperationMode, 100, -1, Strings.Interface.StatusCompleted, ""); } } rs.EndTime = DateTime.Now; return rs.ToString(); }
public string Restore(string[] target) { RestoreStatistics rs = new RestoreStatistics(XervBackupOperationMode.Restore); SetupCommonOptions(rs); m_progress = 0; BackendWrapper backend = null; m_restorePatches = 0; using (new Logging.Timer("Restore from " + m_backend + " to " + string.Join(System.IO.Path.PathSeparator.ToString(), target))) { try { if (OperationStarted != null) OperationStarted(this, XervBackupOperation.Restore, rs.OperationMode, -1, -1, Strings.Interface.StatusStarted, ""); OperationProgress(this, XervBackupOperation.Restore, rs.OperationMode, -1, -1, Strings.Interface.StatusStarted, ""); Utility.FilenameFilter filter = m_options.Filter; //Filter is prefered, if both file and filter is specified if (!m_options.HasFilter && !string.IsNullOrEmpty(m_options.FileToRestore)) { List<Utility.IFilenameFilter> list = new List<XervBackup.Library.Utility.IFilenameFilter>(); list.Add(new Utility.FilelistFilter(true, m_options.FileToRestore.Split(System.IO.Path.PathSeparator))); list.Add(new Utility.RegularExpressionFilter(false, ".*")); filter = new XervBackup.Library.Utility.FilenameFilter(list); } backend = new BackendWrapper(rs, m_backend, m_options); backend.ProgressEvent += new XervBackup.Library.Main.RSync.RSyncDir.ProgressEventDelegate(BackupTransfer_ProgressEvent); OperationProgress(this, XervBackupOperation.Restore, rs.OperationMode, (int)(m_progress * 100), -1, Strings.Interface.StatusReadingIncrementals, ""); ManifestEntry bestFit = backend.GetBackupSet(m_options.RestoreTime); //We will need all the manifests downloaded anyway if (!m_options.DontReadManifests) { if (bestFit.Incrementals.Count > 0) VerifyManifestChain(backend, bestFit.Incrementals[bestFit.Incrementals.Count - 1]); else VerifyManifestChain(backend, bestFit); OperationProgress(this, XervBackupOperation.Restore, rs.OperationMode, (int)(m_progress * 100), -1, Strings.Interface.StatusReadingIncrementals, ""); } m_progress = INCREMENAL_COST; List<ManifestEntry> entries = new List<ManifestEntry>(); entries.Add(bestFit); entries.AddRange(bestFit.Incrementals); int patchno = 0; foreach (ManifestEntry be in entries) m_restorePatches += be.Volumes.Count; Manifestfile rootManifest = GetManifest(backend, bestFit); int sourceDirCount = (rootManifest.SourceDirs == null || rootManifest.SourceDirs.Length == 0) ? 1 : rootManifest.SourceDirs.Length; //After reading the first manifest, we know the source folder count if ((rootManifest.SourceDirs == null || rootManifest.SourceDirs.Length == 0) && target.Length > 1) { //V1 support rs.LogWarning(string.Format(Strings.Interface.TooManyTargetFoldersWarning, 1, target.Length), null); Array.Resize(ref target, 1); } else if (target.Length > sourceDirCount) { //If we get too many, we can just cut them off rs.LogWarning(string.Format(Strings.Interface.TooManyTargetFoldersWarning, sourceDirCount, target.Length), null); Array.Resize(ref target, rootManifest.SourceDirs.Length); } else if (target.Length != 1 && target.Length < sourceDirCount) { //If we get too few, we have to bail throw new Exception(string.Format(Strings.Interface.TooFewTargetFoldersError, sourceDirCount, target.Length)); } else if (target.Length == 1 && sourceDirCount > 1) { //If there is just one target folder, we automatically compose target subfolders string[] newtargets = new string[rootManifest.SourceDirs.Length]; List<string> suggestions = new List<string>(); for (int i = 0; i < rootManifest.SourceDirs.Length; i++) { string s = rootManifest.SourceDirs[i]; //HACK: We use a leading / in the path name to detect source OS // all paths are absolute, so this detects all unix like systems string dirSepChar = s.StartsWith("/") ? "/" : "\\"; if (s.EndsWith(dirSepChar)) s = s.Substring(0, s.Length - 1); int lix = s.LastIndexOf(dirSepChar); if (lix < 0 || lix + 1 >= s.Length) s = i.ToString(); else s = s.Substring(lix + 1); foreach (char c in System.IO.Path.GetInvalidFileNameChars()) s = s.Replace(c, '_'); suggestions.Add(s); } Dictionary<string, int> duplicates = new Dictionary<string, int>(Library.Utility.Utility.ClientFilenameStringComparer); for (int i = 0; i < suggestions.Count; i++) if (duplicates.ContainsKey(suggestions[i])) duplicates[suggestions[i]]++; else duplicates[suggestions[i]] = 1; for (int i = 0; i < newtargets.Length; i++) { string suffix = duplicates[suggestions[i]] > 1 ? i.ToString() : suggestions[i]; newtargets[i] = System.IO.Path.Combine(target[0], suffix); } target = newtargets; } //Make sure all targets exist foreach(string s in target) if (!System.IO.Directory.Exists(s)) System.IO.Directory.CreateDirectory(s); using (RSync.RSyncDir sync = new XervBackup.Library.Main.RSync.RSyncDir(target, rs, filter)) { sync.ProgressEvent += new XervBackup.Library.Main.RSync.RSyncDir.ProgressEventDelegate(RestoreRSyncDir_ProgressEvent); foreach (ManifestEntry be in entries) { m_progress = ((1.0 - INCREMENAL_COST) * (patchno / (double)m_restorePatches)) + INCREMENAL_COST; CheckLiveControl(); Manifestfile manifest = be == bestFit ? rootManifest : GetManifest(backend, be); CheckLiveControl(); foreach (KeyValuePair<SignatureEntry, ContentEntry> vol in be.Volumes) { ContentEntry contentVol = vol.Value; SignatureEntry signatureVol = vol.Key; m_progress = ((1.0 - INCREMENAL_COST) * (patchno / (double)m_restorePatches)) + INCREMENAL_COST; //Skip nonlisted if (manifest.ContentHashes != null && contentVol.Volumenumber > manifest.ContentHashes.Count) { Logging.Log.WriteMessage(string.Format(Strings.Interface.SkippedContentVolumeLogMessage, contentVol.Volumenumber), XervBackup.Library.Logging.LogMessageType.Warning); rs.LogWarning(string.Format(Strings.Interface.SkippedContentVolumeLogMessage, contentVol.Volumenumber), null); patchno++; continue; } using (Utility.TempFile patchzip = new XervBackup.Library.Utility.TempFile()) { OperationProgress(this, XervBackupOperation.Restore, rs.OperationMode, (int)(m_progress * 100), -1, string.Format(Strings.Interface.StatusPatching, patchno + 1), ""); CheckLiveControl(); if (m_options.HasFilter || !string.IsNullOrEmpty(m_options.FileToRestore)) { bool hasFiles = false; using (Utility.TempFile sigFile = new XervBackup.Library.Utility.TempFile()) { OperationProgress(this, XervBackupOperation.Restore, rs.OperationMode, (int)(m_progress * 100), -1, string.Format(Strings.Interface.StatusDownloadingSignatureVolume, patchno + 1), ""); try { using (new Logging.Timer("Get " + signatureVol.Filename)) backend.Get(signatureVol, manifest, sigFile, manifest.SignatureHashes == null ? null : manifest.SignatureHashes[signatureVol.Volumenumber - 1]); } catch (BackendWrapper.HashMismathcException hme) { hasFiles = true; rs.LogError(string.Format(Strings.Interface.FileHashFailure, hme.Message), hme); } if (!hasFiles) using (Library.Interface.ICompression patch = DynamicLoader.CompressionLoader.GetModule(signatureVol.Compression, sigFile, m_options.RawOptions)) { foreach(KeyValuePair<RSync.RSyncDir.PatchFileType, string> k in sync.ListPatchFiles(patch)) if (filter.ShouldInclude("", System.IO.Path.DirectorySeparatorChar.ToString() + k.Value)) { //TODO: Perhaps a bit much to download the content archive // if the file is only marked for deletion? hasFiles = true; break; } } } if (!hasFiles) { //Avoid downloading the content file patchno++; continue; } } OperationProgress(this, XervBackupOperation.Restore, rs.OperationMode, (int)(m_progress * 100), -1, string.Format(Strings.Interface.StatusDownloadingContentVolume, patchno + 1), ""); using (new Logging.Timer("Get " + contentVol.Filename)) backend.Get(contentVol, manifest, patchzip, manifest.ContentHashes == null ? null : manifest.ContentHashes[contentVol.Volumenumber - 1]); OperationProgress(this, XervBackupOperation.Restore, rs.OperationMode, (int)(m_progress * 100), -1, string.Format(Strings.Interface.StatusPatching, patchno + 1), ""); using (new Logging.Timer((patchno == 0 ? "Full restore to: " : "Incremental restore " + patchno.ToString() + " to: ") + string.Join(System.IO.Path.PathSeparator.ToString(), target))) using (Library.Interface.ICompression patch = DynamicLoader.CompressionLoader.GetModule(contentVol.Compression, patchzip, m_options.RawOptions)) sync.Patch(target, patch); } patchno++; } //Make sure there are no partial files, as partial files are not allowed to span backup sets sync.FinalizeRestore(); } } } finally { if (backend != null) backend.Dispose(); if (OperationCompleted != null) OperationCompleted(this, XervBackupOperation.Restore, rs.OperationMode, 100, -1, Strings.Interface.StatusCompleted, ""); OperationProgress(this, XervBackupOperation.Restore, rs.OperationMode, 100, -1, Strings.Interface.StatusCompleted, ""); } } rs.EndTime = DateTime.Now; return rs.ToString(); }
public string[] ListSourceFolders() { RestoreStatistics rs = new RestoreStatistics(XervBackupOperationMode.ListSourceFolders); SetupCommonOptions(rs); if (m_options.DontReadManifests) throw new Exception(Strings.Interface.ManifestsMustBeRead); DateTime timelimit = m_options.RestoreTime; if (OperationStarted != null) OperationStarted(this, XervBackupOperation.List, rs.OperationMode, 0, -1, Strings.Interface.StatusStarted, ""); string[] res; using (BackendWrapper backend = new BackendWrapper(rs, m_backend, m_options)) using (Utility.TempFile mfile = new XervBackup.Library.Utility.TempFile()) { ManifestEntry bestFit = backend.GetBackupSet(timelimit); backend.Get(bestFit, null, mfile, null); res = new Manifestfile(mfile, m_options.SkipFileHashChecks).SourceDirs; } if (OperationCompleted != null) OperationCompleted(this, XervBackupOperation.List, rs.OperationMode, 100, -1, Strings.Interface.StatusCompleted, ""); return res; }
/// <summary> /// Reads through a backup and finds the last backup entry that has a specific file /// </summary> /// <returns></returns> public List<KeyValuePair<string, DateTime>> FindLastFileVersion() { CommunicationStatistics stats = new CommunicationStatistics(XervBackupOperationMode.FindLastFileVersion); SetupCommonOptions(stats); if (m_options.DontReadManifests) throw new Exception(Strings.Interface.ManifestsMustBeRead); if (string.IsNullOrEmpty(m_options.FileToRestore)) throw new Exception(Strings.Interface.NoFilesGivenError); string[] filesToFind = m_options.FileToRestore.Split(System.IO.Path.PathSeparator); KeyValuePair<string, DateTime>[] results = new KeyValuePair<string, DateTime>[filesToFind.Length]; for (int i = 0; i < results.Length; i++) results[i] = new KeyValuePair<string, DateTime>(filesToFind[i], new DateTime(0)); using (BackendWrapper backend = new BackendWrapper(stats, m_backend, m_options)) { //Extract the full backup set list List<ManifestEntry> fulls = backend.GetBackupSets(); //Flatten the list List<ManifestEntry> workList = new List<ManifestEntry>(); //The list is oldest first, this function work newest first fulls.Reverse(); foreach (ManifestEntry f in fulls) { f.Incrementals.Reverse(); workList.AddRange(f.Incrementals); workList.Add(f); } bool warned_manifest_v1 = false; foreach (ManifestEntry mf in workList) { List<Manifestfile.HashEntry> signatureHashes = null; Manifestfile mfi; using(Utility.TempFile tf = new XervBackup.Library.Utility.TempFile()) { backend.Get(mf, null, tf, null); mfi = new Manifestfile(tf, m_options.SkipFileHashChecks); if (!m_options.SkipFileHashChecks) signatureHashes = mfi.SignatureHashes; } //If there are no volumes, don't stop here bool any_unmatched = true; if (stats != null && !warned_manifest_v1 && (mfi.SourceDirs == null || mfi.SourceDirs.Length == 0)) { warned_manifest_v1 = true; stats.LogWarning(Strings.Interface.ManifestVersionRequiresRelativeNamesWarning, null); } foreach(KeyValuePair<SignatureEntry, ContentEntry> e in mf.Volumes) using (Utility.TempFile tf = new XervBackup.Library.Utility.TempFile()) { //Skip non-approved signature files if (signatureHashes != null && e.Key.Volumenumber > signatureHashes.Count) { stats.LogWarning(string.Format(Strings.Interface.SkippedUnlistedSignatureFileWarning, e.Key.Filename), null); continue; } backend.Get(e.Key, mfi, tf, signatureHashes == null ? null : signatureHashes[e.Key.Volumenumber - 1]); any_unmatched = false; RSync.RSyncDir.ContainsFile(mfi, filesToFind, DynamicLoader.CompressionLoader.GetModule(e.Key.Compression, tf, m_options.RawOptions)); for (int i = 0; i < filesToFind.Length; i++) { if (results[i].Value.Ticks == 0 && string.IsNullOrEmpty(filesToFind[i])) results[i] = new KeyValuePair<string,DateTime>(results[i].Key, mf.Time); else any_unmatched = true; } if (!any_unmatched) break; } if (!any_unmatched) break; } return new List<KeyValuePair<string,DateTime>>(results); } }