57 lines
2.7 KiB
C#
57 lines
2.7 KiB
C#
using System.ComponentModel.DataAnnotations;
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using System.Text.Json;
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using MAX.Framework.Commons;
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using MAX.Framework.Validation;
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using Store.Shops.Dtos;
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using Store.Shops.Entities;
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namespace Store.Shops.Services;
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public sealed partial class ShopService
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{
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/// <summary>获取当前用户授权店铺的微信令牌，外部请求不在数据库事务中执行。</summary>
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public async Task<JsonElement> ShopToken(ShopIdRequest request, CancellationToken ct)
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{
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RequestValidator.Validate(request);
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var actor = await Actor();
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await RequireShop(db, actor, request.ShopId, ct);
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return await tokens.GetShopToken(request.ShopId, ct);
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}
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/// <summary>管理员读取共享令牌列表；缓存有效期60分钟，配置按缓存ID指定e57账号。</summary>
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public async Task<TokensInfo> TokenList(TokenRequest request, CancellationToken ct)
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{
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RequestValidator.Validate(request);
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if (request.DbId <= 0) throw new ValidationException("缓存记录ID必须大于0");
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RequireAdmin(await Actor());
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var cached = await db.Select<TokenEntity>().Where(t => t.Id == request.DbId).FirstAsync(ct);
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if (cached != null && cached.MdyTime.AddMinutes(60) > DateTime.Now)
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{
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try
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{
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using var json = JsonDocument.Parse(cached.Tokens);
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if (json.RootElement.ValueKind == JsonValueKind.Array) return new(json.RootElement.Clone(), cached.MdyTime);
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}
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catch (JsonException) { /* 旧缓存损坏时重新向上游获取，不返回无法解析的数据。 */ }
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}
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var account = configuration[$"Shops:E57WxAccounts:{request.DbId}"];
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if (string.IsNullOrWhiteSpace(account)) throw new AppException("尚未配置该缓存分组的e57微信账号");
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var list = await tokens.GetTokens(account, ct);
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if (list.ValueKind != JsonValueKind.Array) throw new AppException("e57返回的令牌列表格式无效");
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var now = DateTime.Now;
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using var work = db.CreateUnitOfWork();
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work.IsolationLevel = System.Data.IsolationLevel.Serializable;
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work.GetOrBeginTransaction();
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var orm = work.Orm;
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var existing = await orm.Select<TokenEntity>().Where(t => t.Id == request.DbId).ForUpdate().FirstAsync(ct);
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if (existing == null)
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await orm.Insert(new TokenEntity { Id = request.DbId, Tokens = list.GetRawText(), MdyTime = now }).ExecuteAffrowsAsync(ct);
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else
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await orm.Update<TokenEntity>().Where(t => t.Id == request.DbId)
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.Set(t => t.Tokens, list.GetRawText()).Set(t => t.MdyTime, now).ExecuteAffrowsAsync(ct);
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ct.ThrowIfCancellationRequested();
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work.Commit();
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return new(list, now);
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}
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}
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