567 lines
26 KiB
C#
567 lines
26 KiB
C#
using System.Formats.Tar;
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using System.IO.Compression;
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using System.Text;
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using System.Text.Json;
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using Microsoft.EntityFrameworkCore;
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using Microsoft.Extensions.DependencyInjection;
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using Tiku.Application.Assets;
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using Tiku.Application.Content;
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using Tiku.Application.Security;
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using Tiku.Application.Storage;
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using Tiku.Application.Tenancy;
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using Tiku.Domain.Commerce;
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using Tiku.Domain.Content;
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using Tiku.Domain.Operations;
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using Tiku.Domain.Tenancy;
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using Tiku.Infrastructure.Persistence;
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namespace Tiku.Infrastructure.Jobs;
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internal sealed partial class BackgroundJobService
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{
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private async Task<JsonElement> ProcessCoreAsync(
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IServiceProvider scopedProvider,
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BackgroundJob job,
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CancellationToken cancellationToken)
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{
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cancellationToken.ThrowIfCancellationRequested();
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var scopedDbContext = scopedProvider.GetRequiredService<TikuDbContext>();
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var handlers = new Dictionary<string, Func<Task<JsonElement>>>(StringComparer.Ordinal)
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{
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["content_export"] = () => ProcessContentExportAsync(scopedDbContext, job, cancellationToken),
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["content_import"] = () => ProcessContentImportAsync(scopedProvider, job, cancellationToken),
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["asset_security_scan"] = () =>
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ProcessAssetSecurityScanAsync(scopedProvider, scopedDbContext, job, cancellationToken),
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["tenant_export"] = () => ProcessTenantExportAsync(scopedProvider, scopedDbContext, job, cancellationToken),
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["statistics_aggregation"] = () =>
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ProcessStatisticsAggregationAsync(scopedProvider, scopedDbContext, job, cancellationToken),
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["commerce_reconciliation"] =
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() => ProcessCommerceReconciliationAsync(scopedDbContext, job, cancellationToken),
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["tenant_domain_recheck"] = () => ProcessTenantDomainRecheckAsync(scopedProvider, cancellationToken)
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};
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return handlers.TryGetValue(job.JobType, out var handler)
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? await handler()
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: throw new InvalidOperationException($"Unsupported background job type '{job.JobType}'.");
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}
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private static async Task<JsonElement> ProcessContentImportAsync(
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IServiceProvider scopedProvider,
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BackgroundJob job,
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CancellationToken cancellationToken)
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{
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var directContentService = scopedProvider.GetRequiredService<IDirectContentService>();
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var createdBy = GetJsonGuid(job.Payload, "createdBy") ?? Guid.Empty;
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if (createdBy == Guid.Empty) throw new InvalidOperationException("content_import job requires createdBy.");
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var command = new SimpleImportCommand(
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GetJsonString(job.Payload, "importType") ??
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throw new InvalidOperationException("content_import job requires importType."),
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GetJsonString(job.Payload, "sourceFormat"),
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GetJsonString(job.Payload, "sourceName"),
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GetJsonGuid(job.Payload, "regionId"),
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GetJsonGuid(job.Payload, "entryId"),
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GetJsonGuid(job.Payload, "contentNodeId"),
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GetJsonGuid(job.Payload, "subjectId"),
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GetJsonGuid(job.Payload, "categoryId"),
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GetJsonGuid(job.Payload, "questionBankId"),
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GetJsonGuid(job.Payload, "collectionId"),
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GetJsonArray(job.Payload, "items"),
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false);
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var result = await directContentService.ExecuteImportAsync(
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new DirectContentActor(job.TenantId, createdBy),
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command,
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cancellationToken);
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return JsonSerializer.SerializeToElement(new
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{
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importJobId = result.Job.Id,
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result.Job.ImportType,
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result.Job.Status,
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result.Job.TotalCount,
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result.Job.InsertedCount,
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result.Job.UpdatedCount,
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result.Job.ErrorCount
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});
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}
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private static async Task<JsonElement> ProcessAssetSecurityScanAsync(
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IServiceProvider scopedProvider,
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TikuDbContext scopedDbContext,
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BackgroundJob job,
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CancellationToken cancellationToken)
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{
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var assetId = GetJsonGuid(job.Payload, "assetId") ??
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throw new InvalidOperationException("asset_security_scan job requires assetId.");
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var asset = await scopedDbContext.ContentAssets.SingleOrDefaultAsync(
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item => item.TenantId == job.TenantId && item.Id == assetId,
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cancellationToken) ?? throw new InvalidOperationException("Asset security scan target was not found.");
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if (asset.UploadStatus != AssetUploadStatus.Verified ||
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string.IsNullOrWhiteSpace(asset.Bucket) ||
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string.IsNullOrWhiteSpace(asset.ObjectKey))
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throw new InvalidOperationException("Asset must have a verified object location before security scanning.");
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asset.SecurityScanStatus = AssetSecurityScanStatus.Scanning;
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await scopedDbContext.SaveChangesAsync(cancellationToken);
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var scanner = scopedProvider.GetRequiredService<IAssetSecurityScanner>();
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var storage = scopedProvider.GetRequiredService<IObjectStorageService>();
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await using var content = await storage.OpenReadAsync(
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new ObjectStorageReadRequest(
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job.TenantId,
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asset.StorageProvider switch
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{
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AssetStorageProvider.AliyunOss => ObjectStorageProviders.AliyunOss,
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AssetStorageProvider.LocalDev => ObjectStorageProviders.LocalDev,
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_ => throw new InvalidOperationException(
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"Asset storage provider does not support security scanning.")
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},
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asset.Bucket,
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asset.ObjectKey),
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cancellationToken);
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var result =
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await scanner.ScanAsync(content, asset.VerifiedSizeBytes ?? asset.FileSizeBytes, cancellationToken);
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var infected = result.Verdict == AssetSecurityScanVerdict.Infected;
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asset.SecurityScanStatus = infected ? AssetSecurityScanStatus.Failed : AssetSecurityScanStatus.Passed;
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asset.SecurityScannedAt = DateTimeOffset.UtcNow;
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asset.SecurityScanProvider = result.Provider;
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asset.SecurityScanSummary = JsonSerializer.SerializeToElement(new
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{
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verdict = result.Verdict.ToString(),
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result.Signature,
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result.BytesScanned
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});
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scopedDbContext.ContentAssetSecurityScanEvents.Add(new ContentAssetSecurityScanEvent
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{
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TenantId = job.TenantId,
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AssetId = asset.Id,
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Provider = result.Provider,
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ScanStatus = asset.SecurityScanStatus,
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RiskLevel = infected ? AssetSecurityRiskLevel.Critical : AssetSecurityRiskLevel.None,
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IssueCodes = infected ? [result.Signature ?? "malware_detected"] : [],
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Details = asset.SecurityScanSummary
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});
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await scopedDbContext.SaveChangesAsync(cancellationToken);
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return JsonSerializer.SerializeToElement(new
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{
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assetId = asset.Id,
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status = asset.SecurityScanStatus.ToString(),
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result.Signature,
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result.BytesScanned
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});
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}
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private async Task RecordAssetScanRetryAsync(
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BackgroundJob job,
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AssetSecurityScannerException exception,
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CancellationToken cancellationToken)
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{
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var assetId = GetJsonGuid(job.Payload, "assetId");
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if (assetId is null) return;
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var asset = await dbContext.ContentAssets.SingleOrDefaultAsync(
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item => item.TenantId == job.TenantId && item.Id == assetId,
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cancellationToken);
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if (asset is null) return;
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asset.SecurityScanStatus = AssetSecurityScanStatus.Pending;
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asset.SecurityScanProvider = "clamav";
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asset.SecurityScanSummary = JsonSerializer.SerializeToElement(new { errorCode = exception.Code });
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dbContext.ContentAssetSecurityScanEvents.Add(new ContentAssetSecurityScanEvent
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{
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TenantId = job.TenantId,
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AssetId = asset.Id,
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Provider = "clamav",
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ScanStatus = AssetSecurityScanStatus.Pending,
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RiskLevel = AssetSecurityRiskLevel.None,
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IssueCodes = [exception.Code],
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Details = asset.SecurityScanSummary
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});
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await dbContext.SaveChangesAsync(cancellationToken);
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}
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private static async Task<JsonElement> ProcessTenantExportAsync(
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IServiceProvider scopedProvider,
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TikuDbContext scopedDbContext,
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BackgroundJob job,
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CancellationToken cancellationToken)
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{
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var operationId = GetJsonGuid(job.Payload, "operationId") ??
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throw new InvalidOperationException("tenant_export job requires operationId.");
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var operation = await scopedDbContext.TenantLifecycleOperations.SingleOrDefaultAsync(item =>
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item.TenantId == job.TenantId && item.Id == operationId &&
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item.OperationType == TenantLifecycleOperationType.Export,
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cancellationToken) ?? throw new InvalidOperationException("Tenant export operation was not found.");
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operation.Status = TenantLifecycleOperationStatus.Processing;
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operation.StartedAt ??= DateTimeOffset.UtcNow;
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operation.LastError = null;
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await scopedDbContext.SaveChangesAsync(cancellationToken);
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var temporaryPath = Path.Combine(Path.GetTempPath(), $"tiku-tenant-export-{operation.Id:N}.tar.gz");
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try
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{
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var tenant = await scopedDbContext.Tenants.AsNoTracking()
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.SingleAsync(item => item.Id == job.TenantId, cancellationToken);
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var memberships = await scopedDbContext.TenantMemberships.AsNoTracking()
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.Where(item => item.TenantId == job.TenantId)
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.Select(item => new { item.UserId, item.Role, item.Status, item.CreatedAt, item.UpdatedAt })
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.ToArrayAsync(cancellationToken);
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var domains = await scopedDbContext.TenantDomains.AsNoTracking()
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.Where(item => item.TenantId == job.TenantId)
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.Select(item => new
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{
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item.Id, item.Host, item.DomainType, item.Status, item.IsPrimary, item.CreatedAt, item.UpdatedAt
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})
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.ToArrayAsync(cancellationToken);
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var assets = await scopedDbContext.ContentAssets.AsNoTracking()
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.Where(item => item.TenantId == job.TenantId && item.Status == ContentStatus.Active)
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.ToArrayAsync(cancellationToken);
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var storage = scopedProvider.GetRequiredService<IObjectStorageService>();
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await using (var file = new FileStream(temporaryPath, FileMode.CreateNew, FileAccess.Write, FileShare.None,
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128 * 1024, FileOptions.Asynchronous))
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await using (var gzip = new GZipStream(file, CompressionLevel.Fastest, false))
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await using (var archive = new TarWriter(gzip, TarEntryFormat.Pax, false))
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{
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await WriteJsonEntryAsync(archive, "manifest.json", new
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{
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format = "tiku-tenant-export",
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version = 1,
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tenantId = job.TenantId,
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operationId,
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generatedAt = DateTimeOffset.UtcNow,
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exclusions = new[]
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{
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"password_hashes", "auth_tokens", "refresh_tokens", "secret_plaintext", "data_protection_keys",
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"global_platform_data"
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},
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tables = new[] { "tenant", "tenant_memberships", "tenant_domains", "content_assets" }
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}, cancellationToken);
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await WriteJsonLinesEntryAsync(archive, "data/tenant.jsonl", new[]
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{
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new
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{
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tenant.Id, tenant.Slug, tenant.Name, tenant.LegalName, tenant.Status, tenant.Mode,
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tenant.BillingStatus, tenant.OwnerUserId, tenant.CreatedAt, tenant.UpdatedAt
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}
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}, cancellationToken);
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await WriteJsonLinesEntryAsync(archive, "data/tenant_memberships.jsonl", memberships,
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cancellationToken);
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await WriteJsonLinesEntryAsync(archive, "data/tenant_domains.jsonl", domains, cancellationToken);
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await WriteJsonLinesEntryAsync(archive, "data/content_assets.jsonl", assets.Select(item => new
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{
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item.Id,
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item.AssetKey,
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item.Title,
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item.FileName,
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item.StorageProvider,
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item.Bucket,
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item.ObjectKey,
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item.MimeType,
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item.FileSizeBytes,
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item.ChecksumSha256,
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item.UploadStatus,
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item.SecurityScanStatus,
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item.CreatedAt,
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item.UpdatedAt
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}), cancellationToken);
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foreach (var asset in assets.Where(item =>
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item.UploadStatus == AssetUploadStatus.Verified &&
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item.SecurityScanStatus is AssetSecurityScanStatus.Passed
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or AssetSecurityScanStatus.NotRequired &&
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!string.IsNullOrWhiteSpace(item.Bucket) &&
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!string.IsNullOrWhiteSpace(item.ObjectKey)))
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{
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var provider = asset.StorageProvider switch
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{
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AssetStorageProvider.AliyunOss => ObjectStorageProviders.AliyunOss,
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AssetStorageProvider.LocalDev => ObjectStorageProviders.LocalDev,
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_ => null
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};
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if (provider is null) continue;
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await using var content = await storage.OpenReadAsync(
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new ObjectStorageReadRequest(
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job.TenantId, provider, asset.Bucket!, asset.ObjectKey!),
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cancellationToken);
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var name = SanitizeTarPath(asset.FileName ?? asset.Id.ToString("N"));
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archive.WriteEntry(new PaxTarEntry(TarEntryType.RegularFile, $"assets/{asset.Id:N}/{name}")
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{
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DataStream = content
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});
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}
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}
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await using var upload = new FileStream(temporaryPath, FileMode.Open, FileAccess.Read, FileShare.Read,
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128 * 1024, FileOptions.Asynchronous);
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var providerName = storage.ConfiguredDefaultProvider();
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var bucket = storage.ConfiguredDefaultBucket();
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var objectKey =
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storage.ValidateObjectKey(job.TenantId, $"{job.TenantId:N}/tenant-exports/{operation.Id:N}.tar.gz");
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var written = await storage.WriteObjectAsync(
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new ObjectStorageWriteRequest(
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job.TenantId,
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providerName,
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bucket,
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objectKey,
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"application/gzip",
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upload,
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upload.Length,
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Upsert: false),
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cancellationToken);
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var exportAsset = new ContentAsset
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{
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TenantId = job.TenantId,
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Title = "Tenant export archive",
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FileName = $"tenant-export-{operation.Id:N}.tar.gz",
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AssetType = ContentAssetType.Document,
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StorageProvider = providerName switch
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{
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ObjectStorageProviders.AliyunOss => AssetStorageProvider.AliyunOss,
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ObjectStorageProviders.LocalDev => AssetStorageProvider.LocalDev,
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_ => AssetStorageProvider.ExternalUrl
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},
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Bucket = written.Bucket,
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ObjectKey = written.ObjectKey,
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MimeType = "application/gzip",
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FileSizeBytes = written.SizeBytes,
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ChecksumSha256 = written.ChecksumSha256,
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UploadStatus = AssetUploadStatus.Verified,
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VerifiedAt = DateTimeOffset.UtcNow,
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VerifiedSizeBytes = written.SizeBytes,
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SecurityScanStatus = AssetSecurityScanStatus.NotRequired,
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Source = "tenant_export"
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};
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scopedDbContext.ContentAssets.Add(exportAsset);
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operation.ExportAssetId = exportAsset.Id;
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operation.Status = TenantLifecycleOperationStatus.Succeeded;
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operation.CompletedAt = DateTimeOffset.UtcNow;
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operation.Result = JsonSerializer.SerializeToElement(new
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{
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exportAssetId = exportAsset.Id,
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written.SizeBytes,
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assetCount = assets.Length
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});
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await scopedDbContext.SaveChangesAsync(cancellationToken);
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job.OutputAssetId = exportAsset.Id;
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return operation.Result;
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}
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catch (Exception exception) when (exception is not OperationCanceledException)
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{
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operation.Status = TenantLifecycleOperationStatus.Failed;
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operation.LastError = exception.Message;
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operation.CompletedAt = DateTimeOffset.UtcNow;
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await scopedDbContext.SaveChangesAsync(cancellationToken);
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throw;
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}
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finally
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{
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if (File.Exists(temporaryPath)) File.Delete(temporaryPath);
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}
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}
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private static async Task WriteJsonEntryAsync<T>(
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TarWriter archive,
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string name,
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T value,
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CancellationToken cancellationToken)
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{
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var stream = new MemoryStream();
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await JsonSerializer.SerializeAsync(stream, value, cancellationToken: cancellationToken);
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stream.Position = 0;
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archive.WriteEntry(new PaxTarEntry(TarEntryType.RegularFile, name) { DataStream = stream });
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await stream.DisposeAsync();
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}
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private static async Task WriteJsonLinesEntryAsync<T>(
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TarWriter archive,
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string name,
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IEnumerable<T> values,
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CancellationToken cancellationToken)
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{
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var stream = new MemoryStream();
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await using (var writer = new StreamWriter(stream, new UTF8Encoding(false), leaveOpen: true))
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{
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foreach (var value in values)
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{
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cancellationToken.ThrowIfCancellationRequested();
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await writer.WriteLineAsync(JsonSerializer.Serialize(value));
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}
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}
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stream.Position = 0;
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archive.WriteEntry(new PaxTarEntry(TarEntryType.RegularFile, name) { DataStream = stream });
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await stream.DisposeAsync();
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}
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private static string SanitizeTarPath(string value)
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{
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var name = Path.GetFileName(value).Replace('\\', '_').Replace('/', '_');
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return string.IsNullOrWhiteSpace(name) ? "asset.bin" : name;
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}
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private async Task<JsonElement> ProcessContentExportAsync(
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TikuDbContext scopedDbContext,
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BackgroundJob job,
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CancellationToken cancellationToken)
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{
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var exportType = GetJsonString(job.Payload, "exportType") ?? "summary";
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var assetKey = $"background-jobs/{job.Id:N}/content-export.json";
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var asset = await scopedDbContext.ContentAssets.SingleOrDefaultAsync(
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item => item.TenantId == job.TenantId && item.AssetKey == assetKey,
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cancellationToken);
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if (asset is null)
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{
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asset = new ContentAsset
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{
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TenantId = job.TenantId,
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AssetKey = assetKey,
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AssetType = ContentAssetType.Document,
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StorageProvider = AssetStorageProvider.ExternalUrl,
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UploadStatus = AssetUploadStatus.Verified,
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SecurityScanStatus = AssetSecurityScanStatus.NotRequired,
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Source = "background_job"
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};
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scopedDbContext.ContentAssets.Add(asset);
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}
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var questionBankCount =
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await scopedDbContext.QuestionBanks.CountAsync(item => item.TenantId == job.TenantId, cancellationToken);
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var questionCount =
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await scopedDbContext.Questions.CountAsync(item => item.TenantId == job.TenantId, cancellationToken);
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var studentCount =
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await scopedDbContext.StudentProfiles.CountAsync(item => item.TenantId == job.TenantId, cancellationToken);
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asset.FileName = $"content-export-{DateTimeOffset.UtcNow:yyyyMMddHHmmss}.json";
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asset.Title = "Content export manifest";
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asset.Description = $"Generated content export manifest for {exportType}.";
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asset.ObjectKey = assetKey;
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asset.MimeType = "application/json";
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asset.Metadata = JsonSerializer.SerializeToElement(new
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{
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exportType,
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generatedAt = DateTimeOffset.UtcNow,
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questionBankCount,
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questionCount,
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studentCount,
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payload = job.Payload
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});
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await scopedDbContext.SaveChangesAsync(cancellationToken);
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job.OutputAssetId = asset.Id;
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return JsonSerializer.SerializeToElement(new
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{
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outputAssetId = asset.Id,
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asset.AssetKey,
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questionBankCount,
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questionCount,
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studentCount
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});
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}
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private async Task<JsonElement> ProcessCommerceReconciliationAsync(
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TikuDbContext scopedDbContext,
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BackgroundJob job,
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CancellationToken cancellationToken)
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{
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var provider = NormalizeProvider(GetJsonString(job.Payload, "provider"));
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var hasProviderConfig = await scopedDbContext.TenantExternalProviders.AnyAsync(
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item =>
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item.TenantId == job.TenantId &&
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item.Capability == TenantExternalProviderCapability.Payment &&
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item.Provider == provider &&
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item.Status == TenantExternalProviderStatus.Active,
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cancellationToken);
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if (!hasProviderConfig)
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throw new InvalidOperationException(
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$"Active payment provider '{provider}' is required for commerce reconciliation job.");
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|
|
|
var billDate = GetJsonDateOnly(job.Payload, "billDate") ?? DateOnly.FromDateTime(DateTime.UtcNow.Date);
|
|
var billType = GetJsonEnum(job.Payload, "billType", ReconciliationBillType.Combined);
|
|
var sourceHash = $"background-job:{job.Id:N}";
|
|
var batch = await scopedDbContext.CommerceReconciliationBatches.SingleOrDefaultAsync(
|
|
item =>
|
|
item.TenantId == job.TenantId &&
|
|
item.Provider == provider &&
|
|
item.Source == ReconciliationSource.ProviderDownload &&
|
|
item.SourceHash == sourceHash,
|
|
cancellationToken);
|
|
if (batch is null)
|
|
{
|
|
batch = new CommerceReconciliationBatch
|
|
{
|
|
TenantId = job.TenantId,
|
|
Provider = provider,
|
|
BillDate = billDate,
|
|
BillType = billType,
|
|
Source = ReconciliationSource.ProviderDownload,
|
|
SourceName = $"provider-bill:{provider}:{billDate:yyyyMMdd}",
|
|
SourceHash = sourceHash,
|
|
Status = ReconciliationBatchStatus.Pending,
|
|
Metadata = JsonSerializer.SerializeToElement(new
|
|
{
|
|
jobId = job.Id,
|
|
note =
|
|
"Provider bill job created the reconciliation batch; provider download/parser is handled by a dedicated provider processor."
|
|
})
|
|
};
|
|
scopedDbContext.CommerceReconciliationBatches.Add(batch);
|
|
await scopedDbContext.SaveChangesAsync(cancellationToken);
|
|
}
|
|
|
|
return JsonSerializer.SerializeToElement(new
|
|
{
|
|
batchId = batch.Id,
|
|
provider,
|
|
billDate,
|
|
billType = billType.ToString(),
|
|
status = batch.Status.ToString()
|
|
});
|
|
}
|
|
|
|
private static async Task<JsonElement> ProcessTenantDomainRecheckAsync(
|
|
IServiceProvider scopedProvider,
|
|
CancellationToken cancellationToken)
|
|
{
|
|
var lifecycleService = scopedProvider.GetRequiredService<ITenantDomainLifecycleService>();
|
|
var processed = await lifecycleService.ProcessPendingAsync(cancellationToken);
|
|
return JsonSerializer.SerializeToElement(new
|
|
{
|
|
processed
|
|
});
|
|
}
|
|
|
|
private async Task<JsonElement> ProcessStatisticsAggregationAsync(
|
|
IServiceProvider scopedProvider,
|
|
TikuDbContext scopedDbContext,
|
|
BackgroundJob job,
|
|
CancellationToken cancellationToken)
|
|
{
|
|
var since = DateTimeOffset.UtcNow.AddDays(-7);
|
|
var activeLearnerCount = await scopedDbContext.PracticeSessions
|
|
.Where(item => item.TenantId == job.TenantId && item.StartedAt >= since)
|
|
.Select(item => item.UserId)
|
|
.Distinct()
|
|
.CountAsync(cancellationToken);
|
|
var paidOrderCount = await scopedDbContext.Orders
|
|
.CountAsync(item => item.TenantId == job.TenantId && item.Status == OrderStatus.Paid, cancellationToken);
|
|
var revenueCents = await scopedDbContext.Orders
|
|
.Where(item => item.TenantId == job.TenantId &&
|
|
(item.Status == OrderStatus.Paid ||
|
|
item.Status == OrderStatus.PartiallyRefunded ||
|
|
item.Status == OrderStatus.Refunded))
|
|
.SumAsync(item => item.AmountCents - item.RefundedAmountCents, cancellationToken);
|
|
var quotaUsage = await scopedProvider.GetRequiredService<IFeatureUsageReconciliationService>()
|
|
.ReconcileTenantAsync(
|
|
new ReconcileFeatureUsageRequest(
|
|
job.TenantId,
|
|
SystemScopeCallerType.Worker,
|
|
nameof(BackgroundJobService),
|
|
"Reconcile tenant current feature usage during statistics aggregation",
|
|
$"feature-usage-{job.Id:N}"),
|
|
cancellationToken);
|
|
return JsonSerializer.SerializeToElement(new
|
|
{
|
|
since,
|
|
activeLearnerCount,
|
|
paidOrderCount,
|
|
revenueCents,
|
|
quotaUsage
|
|
});
|
|
}
|
|
} |