2022 jphd-3dprint

2021-backend.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>net5.0</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <RootNamespace>_2021_backend</RootNamespace>
     <UserSecretsId>2023ab1c-9547-4989-a343-cd3428e085fe</UserSecretsId>
     <StartupObject>_2021_backend.Program</StartupObject>
@@ -19,21 +19,25 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="itext7" Version="7.1.16" />
+    <PackageReference Include="itext7" Version="7.2.1" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc.ViewFeatures" Version="2.2.0" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="5.0.9" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="5.0.9" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="5.0.9" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="5.0.9">
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="6.0.2" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="6.0.2" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="6.0.2" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="6.0.2">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="5.0.2" />
+    <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="6.0.2" />
     <PackageReference Include="Nancy" Version="2.0.0" />
-    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="5.0.7" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="6.0.3" />
     <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL.Design" Version="1.1.0" />
-    <PackageReference Include="NPOI" Version="2.5.4" />
-    <PackageReference Include="TencentCloudSDK" Version="3.0.362" />
+    <PackageReference Include="NPOI" Version="2.5.5" />
+    <PackageReference Include="TencentCloudSDK" Version="3.0.464" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <Folder Include="Migrations\" />
   </ItemGroup>
 
 </Project>

Controllers/SubmissionController.cs

@@ -7,20 +7,52 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text.Json;
 using System.Threading.Tasks;
+using System.Security.Cryptography;
 
 namespace _2021_backend.Controllers
 {
-    [Route("api/submit")]
+
+    
+    [Route("api")]
     public class SubmissionController : Controller
     {
-        public BackendContext Context;
+
+        public BackendContext context;
 
         public SubmissionController(BackendContext context)
         {
-            Context = context;
+            this.context = context;
         }
-        [HttpPost]
-        public async Task<IActionResult> Post([FromForm] string dto)
+
+        [HttpPost("checkCaptcha")]
+        public async Task<IActionResult> CheckCaptcha([FromQuery] string stuid, [FromQuery] string captcha)
+        {
+            var stu = context.Students.FirstOrDefault(e => e.Stuid == stuid);
+            if (stu == null) return Ok(ApiResponse.Error("INVALID_STUID"));
+            else if (captcha == stu.LastCaptcha)
+            {
+                if (DateTime.Now - stu.LastCaptchaTime > TimeSpan.FromMinutes(15)) return Ok(ApiResponse.Error("CAPTCHA_TIMEOUT"));
+                return Ok(ApiResponse.Success("success"));
+            }
+            else return Ok(ApiResponse.Error("INVALID_CAPTCHA"));
+        }
+
+
+        [HttpPost("getCaptcha")]
+        public async Task<IActionResult> GetCaptcha([FromQuery] string stuid)
+        {
+
+            var stu = context.Students.FirstOrDefault(e => e.Stuid == stuid);
+            if (stu == null) return Ok(ApiResponse.Error("INVALID_STUID"));
+            else if (DateTime.Now - stu.LastCaptchaTime < TimeSpan.FromMinutes(1)) return Ok(ApiResponse.Error("ALREADY_SENT"));
+            var result = await TencentSMS.Send(context, SMSType.Captcha, stu, "smsbot");
+            if (!result) return Ok(ApiResponse.Error("SEND_ERROR"));
+            return Ok(ApiResponse.Success("success"));
+        }
+
+
+        [HttpPost("submit")]
+        public async Task<IActionResult> PostSubmit([FromForm] string dto)
         {
             var aDto = JsonSerializer.Deserialize<SubmissionDto>(dto);
             string ip = Request.Headers["X-Real-IP"].FirstOrDefault();
@@ -29,48 +61,47 @@ namespace _2021_backend.Controllers
             if (aDto.Check() == false)
                 return StatusCode(400, ApiResponse.Error("TICKET_NOT_LEGEAL"));
             Submission sub = new Submission(aDto, ip);
-            foreach (var tm in Context.Sessions)
+            foreach (var tm in context.Sessions)
             {
                 if(aDto.Timelist != null)if (aDto.Timelist.Any(it => it.Day.Day == tm.Day.Day && it.BeginTime.TimeOfDay == tm.BeginTime.TimeOfDay))
                 {
-                    sub.Timelist.Add(tm.Guid);
+                    sub.Timelist.Add(tm.Id);
                 }
             }
-            var q = Context.Students.Where(stu => (stu.Name == aDto.Name || stu.Stuid == aDto.Stuid));
+            var q = context.Students.Where(stu => (stu.Name == aDto.Name || stu.Stuid == aDto.Stuid));
             Student stu;
             if (q.Count() == 0)
             {
                 stu = Student.create(sub);
                 stu.Status = status.刚报名;
-                Context.Students.Add(stu);
+                context.Students.Add(stu);
+                context.SaveChanges();
+                sub.Host = stu.Id;
+                context.Submissions.Add(sub);
+                context.SaveChanges();
+                stu.Submissions.Add(sub.Id);
+                context.SaveChanges();
             }
             else
             {
                 stu = q.FirstOrDefault();
+                sub.Host = stu.Id;
+                context.Submissions.Add(sub);
+                context.SaveChanges();
                 stu.Update(sub);
+                context.SaveChanges();
             }
-            sub.Host = stu.Guid;
-            Context.Submissions.Add(sub);
-            Context.SaveChanges();
-            await TencentSMS.Send(Context, SMSType.Signed, stu, _2021_backend.Models.User.Bot.stuID);
+            
+            await TencentSMS.Send(context, SMSType.Signed, stu, _2021_backend.Models.User.Bot.stuID);
             return Ok(ApiResponse.Success("success"));
 
         }
-    }
-    [ApiController]
-    [Route("api/sessionlist")]
-    public class SessionlistContoller : Controller
-    {
-        private readonly BackendContext _context;
-        public SessionlistContoller(BackendContext context)
-        {
-            _context = context;
-        }
-        [HttpGet]
 
+
+        [HttpGet("sessionlist")]
         public IActionResult GetSessions()
         {
-            var query = _context.Sessions.OrderBy(r => r.Day).ThenBy(r => r.BeginTime).ThenBy(r => r.Place).Where(e => e.Capacity > e.Students.Count).Select(r => new SessionDto
+            var query = context.Sessions.OrderBy(r => r.Day).ThenBy(r => r.BeginTime).ThenBy(r => r.Place).Where(e => e.Capacity > e.Students.Count).Select(r => new SessionDto
             {
                 BeginTime = r.BeginTime,
                 Day = r.Day,
@@ -78,25 +109,79 @@ namespace _2021_backend.Controllers
             return Ok(ApiResponse.Success(query.ToList().FindAll(it => it.Day.Add(it.BeginTime.TimeOfDay).CompareTo(DateTime.Now) > 0).Distinct(new SessionDtoComparer()).ToList()));
             //return Ok(ApiResponse.Success("报名结束了"));
         }
+
+
+
+        [HttpGet("fileinfo")]
+        public async Task<IActionResult> GetInfo([FromQuery] string? stuid)
+        {
+            if (stuid == null || (!context.Students.Any(e => e.Stuid == stuid)))
+            {
+                return Ok(ApiResponse.Error("INVALID_STUID"));
+            }
+            else
+            {
+                var student = context.Students.FirstOrDefault(e => e.Stuid == stuid.ToString());
+                if (student.Uploads == null)
+                {
+                    student.Uploads = new List<int> { };
+                    context.SaveChangesAsync();
+                    return Ok(ApiResponse.Error("NO_FILES"));
+
+                }
+                var fileIdx = student.Uploads.Last();
+                var file = context.FileDesc.Find(fileIdx);
+                var oldNameSplit = file.Name.Split(".");
+                var oldName = "";
+                var oldNameExtension = oldNameSplit.LastOrDefault();
+                for (int i = 0; i < oldNameSplit.Count() - 1; i++)
+                {
+                    oldName += oldNameSplit[i]; 
+                }
+                file.Path = "***.***.****";
+                if (oldName.Count() >= 2)
+                {
+                    file.Name = $"{oldName[0]}***{oldName}.{oldNameExtension}";
+                }
+                else
+                {
+                    file.Name = $"**.{oldNameExtension}";
+                }
+                return Ok(ApiResponse.Success(file));
+
             }
 
-    [ApiController]
-    [Route("api/postsession")]
-    public class PostsessionController : Controller
-    {
-        private readonly BackendContext Context;
-        public PostsessionController(BackendContext context)
-        {
-            Context = context;
         }
-        [HttpPost]
 
+
+
+        [HttpPost("upload")]
+        public async Task<IActionResult> UploadFile([FromQuery] string? stuid,[FromQuery]string filename, [FromQuery] string filepath, [FromQuery] float fileSizeInKB)
+        {
+            var filedesc = new FileDesc { Name = filename, Path = $"jphd-3dprint-2022.oss-cn-hangzhou.aliyuncs.com/uploads/{stuid}/{filename}", Size = Convert.ToInt32(fileSizeInKB), UploadTime = DateTime.Now };
+            if (!context.Students.Any(e => e.Stuid == stuid)) return Ok(ApiResponse.Error("INVALID_STUID"));
+            else
+            {
+                var s = context.Students.First(e => e.Stuid == stuid);
+                filedesc.OwnerId = s.Id;
+                if (s.Uploads == null) s.Uploads = new List<int> { };
+                context.FileDesc.Add(filedesc);
+                await context.SaveChangesAsync();
+                s.Uploads.Add(filedesc.Id);
+                s.Status = status.已提交;
+                await context.SaveChangesAsync();
+                return Ok(ApiResponse.Success("success"));
+            }
+
+        }
+
+        [HttpPost("postsession")]
         public async Task<IActionResult> Post([FromQuery] string stuid, [FromQuery] string selection)
         {
-            Student stu = Context.Students.FirstOrDefault(r => r.Stuid == stuid);
+            Student stu = context.Students.FirstOrDefault(r => r.Stuid == stuid);
             if (stu == null)
             {
-                return StatusCode(400, ApiResponse.Error("INVALID_STUDENT_GUID"));
+                return StatusCode(400, ApiResponse.Error("INVALID_STUDENT_int"));
             }
             SessionDto time;
             try
@@ -108,33 +193,34 @@ namespace _2021_backend.Controllers
                 Console.WriteLine(ex);
                 return StatusCode(400, ApiResponse.Error("MALFORMED_DATA"));
             };
-            //get the selected session guids;
-            Guid targetSession = Guid.Empty;
-            var sessions = Context.Sessions.ToList();
+            //get the selected session ints;
+            int targetSession = 0;
+            var sessions = context.Sessions.ToList();
             var s = sessions.Find((Session s) =>
             {
                 return time.Day == s.Day && time.BeginTime == s.BeginTime;
             });
             var overwritten = false;
             if (s.Students.Count >= s.Capacity) return Ok(ApiResponse.Error("OUT_OF_CAPACITY"));
-            if (Context.Sessions.Find(stu.InterviewTime) != null)
+            if (context.Sessions.Find(stu.InterviewTime) != null)
             {
-                var olds = Context.Sessions.Find(stu.InterviewTime);
-                olds.Students.Remove(stu.Guid);
-                Context.SaveChanges();
+                var olds = context.Sessions.Find(stu.InterviewTime);
+                olds.Students.Remove(stu.Id);
+                context.SaveChanges();
                 overwritten = true;
             }
-            targetSession = s.Guid;
-            s.Students.Add(stu.Guid);
-            stu.Timelist = new List<Guid> { targetSession};
+            targetSession = s.Id;
+            s.Students.Add(stu.Id);
+            stu.Timelist = new List<int> { targetSession };
             stu.Status = status.已选时间;
-            stu.InterviewTime = s.Guid;
-            await TencentSMS.Send(Context, SMSType.TimeSet, stu, "smsbot");
-            Context.SaveChanges();
+            stu.InterviewTime = s.Id;
+            await TencentSMS.Send(context, SMSType.TimeSet, stu, "smsbot");
+            context.SaveChanges();
             if (overwritten) return Ok(ApiResponse.Success("overwritten"));
             return Ok(ApiResponse.Success("success"));
             //return Ok(ApiResponse.Success("报名结束了"));
 
         }
     }
+
 }

Data/BackendContext.cs

@@ -16,18 +16,21 @@ namespace _2021_backend.Data
         public DbSet<Student> Students { get; set; }
         public DbSet<SMS> SMS { get; set; }
 
+        public DbSet<FileDesc> FileDesc { get; set; }
+
         protected override void OnModelCreating(ModelBuilder mb)
         {
             mb.Entity<Submission>()
-                .HasKey(r => r.Guid);
+                .HasKey(r => r.Id);
             mb.Entity<User>()
-                .HasKey(u => u.Guid);
+                .HasKey(u => u.Id);
             mb.Entity<Comment>()
-                .HasKey(u => u.Guid);
+                .HasKey(u => u.Id);
             mb.Entity<Session>()
-                .HasKey(u => u.Guid);
+                .HasKey(u => u.Id);
             mb.Entity<SMS>()
-                .HasKey(u => u.Guid);
+                .HasKey(u => u.Id);
+            mb.Entity<FileDesc>().HasKey(u => u.Id);
         }
     }
 }

Migrations/20220223070103_initial.Designer.cs

@@ -8,58 +8,128 @@ using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
 using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
 using _2021_backend.Data;
 
+#nullable disable
+
 namespace _2021_backend.Migrations
 {
     [DbContext(typeof(BackendContext))]
-    [Migration("20211018220015_Initial")]
-    partial class Initial
+    [Migration("20220223070103_initial")]
+    partial class initial
     {
         protected override void BuildTargetModel(ModelBuilder modelBuilder)
         {
 #pragma warning disable 612, 618
             modelBuilder
-                .HasAnnotation("Relational:MaxIdentifierLength", 63)
-                .HasAnnotation("ProductVersion", "5.0.9")
-                .HasAnnotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn);
+                .HasAnnotation("ProductVersion", "6.0.2")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
 
             modelBuilder.Entity("_2021_backend.Models.Comment", b =>
                 {
-                    b.Property<Guid>("Guid")
+                    b.Property<int>("Id")
                         .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
 
                     b.Property<DateTime>("AddTime")
-                        .HasColumnType("timestamp without time zone");
+                        .HasColumnType("timestamp with time zone");
 
                     b.Property<string>("Content")
                         .IsRequired()
                         .HasColumnType("text");
 
-                    b.Property<Guid>("Operator")
-                        .HasColumnType("uuid");
+                    b.Property<int>("Operator")
+                        .HasColumnType("integer");
 
-                    b.Property<Guid>("Student")
-                        .HasColumnType("uuid");
+                    b.Property<int>("Student")
+                        .HasColumnType("integer");
 
-                    b.HasKey("Guid");
+                    b.HasKey("Id");
 
                     b.ToTable("Comments");
                 });
 
+            modelBuilder.Entity("_2021_backend.Models.FileDesc", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .HasColumnType("text");
+
+                    b.Property<int>("OwnerId")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("Path")
+                        .HasColumnType("text");
+
+                    b.Property<int>("Size")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("UploadTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("FileDesc");
+                });
+
+            modelBuilder.Entity("_2021_backend.Models.Session", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("BeginTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("Capacity")
+                        .HasColumnType("integer");
+
+                    b.Property<List<int>>("Chiefs")
+                        .HasColumnType("integer[]");
+
+                    b.Property<DateTime>("Day")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Place")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<bool>("SendSMS")
+                        .HasColumnType("boolean");
+
+                    b.Property<List<int>>("Students")
+                        .HasColumnType("integer[]");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Sessions");
+                });
+
             modelBuilder.Entity("_2021_backend.Models.SMS", b =>
                 {
-                    b.Property<Guid>("Guid")
+                    b.Property<int>("Id")
                         .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
 
                     b.Property<List<string>>("Data")
                         .HasColumnType("text[]");
 
-                    b.Property<Guid>("Host")
-                        .HasColumnType("uuid");
+                    b.Property<int>("Host")
+                        .HasColumnType("integer");
 
                     b.Property<DateTime>("SendTime")
-                        .HasColumnType("timestamp without time zone");
+                        .HasColumnType("timestamp with time zone");
 
                     b.Property<string>("Sender")
                         .HasColumnType("text");
@@ -70,52 +140,21 @@ namespace _2021_backend.Migrations
                     b.Property<int>("Type")
                         .HasColumnType("integer");
 
-                    b.HasKey("Guid");
+                    b.HasKey("Id");
 
                     b.ToTable("SMS");
                 });
 
-            modelBuilder.Entity("_2021_backend.Models.Session", b =>
-                {
-                    b.Property<Guid>("Guid")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
-
-                    b.Property<DateTime>("BeginTime")
-                        .HasColumnType("timestamp without time zone");
-
-                    b.Property<int>("Capacity")
-                        .HasColumnType("integer");
-
-                    b.Property<List<Guid>>("Chiefs")
-                        .HasColumnType("uuid[]");
-
-                    b.Property<DateTime>("Day")
-                        .HasColumnType("timestamp without time zone");
-
-                    b.Property<string>("Place")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.Property<bool>("SendSMS")
-                        .HasColumnType("boolean");
-
-                    b.Property<List<Guid>>("Students")
-                        .HasColumnType("uuid[]");
-
-                    b.HasKey("Guid");
-
-                    b.ToTable("Sessions");
-                });
-
             modelBuilder.Entity("_2021_backend.Models.Student", b =>
                 {
-                    b.Property<Guid>("Guid")
+                    b.Property<int>("Id")
                         .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
+                        .HasColumnType("integer");
 
-                    b.Property<List<Guid>>("Comments")
-                        .HasColumnType("uuid[]");
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<List<int>>("Comments")
+                        .HasColumnType("integer[]");
 
                     b.Property<string>("Email")
                         .HasColumnType("text");
@@ -126,23 +165,29 @@ namespace _2021_backend.Migrations
                     b.Property<int>("Grade")
                         .HasColumnType("integer");
 
-                    b.Property<Guid>("InterviewTime")
-                        .HasColumnType("uuid");
+                    b.Property<int>("InterviewTime")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("LastCaptcha")
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("LastCaptchaTime")
+                        .HasColumnType("timestamp with time zone");
 
                     b.Property<DateTime>("LastSubmission")
-                        .HasColumnType("timestamp without time zone");
+                        .HasColumnType("timestamp with time zone");
 
                     b.Property<string>("Major")
                         .HasColumnType("text");
 
-                    b.Property<List<Guid>>("Messages")
-                        .HasColumnType("uuid[]");
+                    b.Property<List<int>>("Messages")
+                        .HasColumnType("integer[]");
 
                     b.Property<string>("Name")
                         .HasColumnType("text");
 
                     b.Property<DateTime>("RegisterTime")
-                        .HasColumnType("timestamp without time zone");
+                        .HasColumnType("timestamp with time zone");
 
                     b.Property<int>("Score")
                         .HasColumnType("integer");
@@ -156,28 +201,33 @@ namespace _2021_backend.Migrations
                     b.Property<string>("Stuid")
                         .HasColumnType("text");
 
-                    b.Property<List<Guid>>("Submissions")
-                        .HasColumnType("uuid[]");
+                    b.Property<List<int>>("Submissions")
+                        .HasColumnType("integer[]");
 
                     b.Property<string>("Tel")
                         .HasColumnType("text");
 
-                    b.Property<List<Guid>>("Timelist")
-                        .HasColumnType("uuid[]");
+                    b.Property<List<int>>("Timelist")
+                        .HasColumnType("integer[]");
+
+                    b.Property<List<int>>("Uploads")
+                        .HasColumnType("integer[]");
 
                     b.Property<int>("Yard")
                         .HasColumnType("integer");
 
-                    b.HasKey("Guid");
+                    b.HasKey("Id");
 
                     b.ToTable("Students");
                 });
 
             modelBuilder.Entity("_2021_backend.Models.Submission", b =>
                 {
-                    b.Property<Guid>("Guid")
+                    b.Property<int>("Id")
                         .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
 
                     b.Property<string>("Address")
                         .HasColumnType("text");
@@ -191,8 +241,8 @@ namespace _2021_backend.Migrations
                     b.Property<int>("Grade")
                         .HasColumnType("integer");
 
-                    b.Property<Guid>("Host")
-                        .HasColumnType("uuid");
+                    b.Property<int>("Host")
+                        .HasColumnType("integer");
 
                     b.Property<string>("Major")
                         .HasColumnType("text");
@@ -207,27 +257,29 @@ namespace _2021_backend.Migrations
                         .HasColumnType("text");
 
                     b.Property<DateTime>("SubmitTime")
-                        .HasColumnType("timestamp without time zone");
+                        .HasColumnType("timestamp with time zone");
 
                     b.Property<string>("Tel")
                         .HasColumnType("text");
 
-                    b.Property<List<Guid>>("Timelist")
-                        .HasColumnType("uuid[]");
+                    b.Property<List<int>>("Timelist")
+                        .HasColumnType("integer[]");
 
                     b.Property<int>("Yard")
                         .HasColumnType("integer");
 
-                    b.HasKey("Guid");
+                    b.HasKey("Id");
 
                     b.ToTable("Submissions");
                 });
 
             modelBuilder.Entity("_2021_backend.Models.User", b =>
                 {
-                    b.Property<Guid>("Guid")
+                    b.Property<int>("Id")
                         .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
 
                     b.Property<string>("Name")
                         .HasColumnType("text");
@@ -241,7 +293,7 @@ namespace _2021_backend.Migrations
                     b.Property<string>("stuID")
                         .HasColumnType("text");
 
-                    b.HasKey("Guid");
+                    b.HasKey("Id");
 
                     b.ToTable("Users");
                 });

Migrations/20220223070103_initial.cs

@@ -1,10 +1,13 @@
 using System;
 using System.Collections.Generic;
 using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
 
 namespace _2021_backend.Migrations
 {
-    public partial class Initial : Migration
+    public partial class initial : Migration
     {
         protected override void Up(MigrationBuilder migrationBuilder)
         {
@@ -12,57 +15,78 @@ namespace _2021_backend.Migrations
                 name: "Comments",
                 columns: table => new
                 {
-                    Guid = table.Column<Guid>(type: "uuid", nullable: false),
-                    Operator = table.Column<Guid>(type: "uuid", nullable: false),
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Operator = table.Column<int>(type: "integer", nullable: false),
                     Content = table.Column<string>(type: "text", nullable: false),
-                    AddTime = table.Column<DateTime>(type: "timestamp without time zone", nullable: false),
-                    Student = table.Column<Guid>(type: "uuid", nullable: false)
+                    AddTime = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    Student = table.Column<int>(type: "integer", nullable: false)
                 },
                 constraints: table =>
                 {
-                    table.PrimaryKey("PK_Comments", x => x.Guid);
+                    table.PrimaryKey("PK_Comments", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "FileDesc",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    OwnerId = table.Column<int>(type: "integer", nullable: false),
+                    Name = table.Column<string>(type: "text", nullable: true),
+                    Size = table.Column<int>(type: "integer", nullable: false),
+                    Path = table.Column<string>(type: "text", nullable: true),
+                    UploadTime = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_FileDesc", x => x.Id);
                 });
 
             migrationBuilder.CreateTable(
                 name: "Sessions",
                 columns: table => new
                 {
-                    Guid = table.Column<Guid>(type: "uuid", nullable: false),
-                    Day = table.Column<DateTime>(type: "timestamp without time zone", nullable: false),
-                    BeginTime = table.Column<DateTime>(type: "timestamp without time zone", nullable: false),
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Day = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    BeginTime = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
                     Place = table.Column<string>(type: "text", nullable: false),
-                    Chiefs = table.Column<List<Guid>>(type: "uuid[]", nullable: true),
+                    Chiefs = table.Column<List<int>>(type: "integer[]", nullable: true),
                     Capacity = table.Column<int>(type: "integer", nullable: false),
                     SendSMS = table.Column<bool>(type: "boolean", nullable: false),
-                    Students = table.Column<List<Guid>>(type: "uuid[]", nullable: true)
+                    Students = table.Column<List<int>>(type: "integer[]", nullable: true)
                 },
                 constraints: table =>
                 {
-                    table.PrimaryKey("PK_Sessions", x => x.Guid);
+                    table.PrimaryKey("PK_Sessions", x => x.Id);
                 });
 
             migrationBuilder.CreateTable(
                 name: "SMS",
                 columns: table => new
                 {
-                    Guid = table.Column<Guid>(type: "uuid", nullable: false),
-                    Host = table.Column<Guid>(type: "uuid", nullable: false),
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Host = table.Column<int>(type: "integer", nullable: false),
                     Tel = table.Column<string>(type: "text", nullable: true),
                     Data = table.Column<List<string>>(type: "text[]", nullable: true),
                     Type = table.Column<int>(type: "integer", nullable: false),
                     Sender = table.Column<string>(type: "text", nullable: true),
-                    SendTime = table.Column<DateTime>(type: "timestamp without time zone", nullable: false)
+                    SendTime = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
                 },
                 constraints: table =>
                 {
-                    table.PrimaryKey("PK_SMS", x => x.Guid);
+                    table.PrimaryKey("PK_SMS", x => x.Id);
                 });
 
             migrationBuilder.CreateTable(
                 name: "Students",
                 columns: table => new
                 {
-                    Guid = table.Column<Guid>(type: "uuid", nullable: false),
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
                     Name = table.Column<string>(type: "text", nullable: true),
                     Stuid = table.Column<string>(type: "text", nullable: true),
                     Sex = table.Column<int>(type: "integer", nullable: false),
@@ -72,27 +96,31 @@ namespace _2021_backend.Migrations
                     Email = table.Column<string>(type: "text", nullable: true),
                     Tel = table.Column<string>(type: "text", nullable: true),
                     Exp = table.Column<int>(type: "integer", nullable: false),
-                    InterviewTime = table.Column<Guid>(type: "uuid", nullable: false),
-                    Submissions = table.Column<List<Guid>>(type: "uuid[]", nullable: true),
-                    Messages = table.Column<List<Guid>>(type: "uuid[]", nullable: true),
-                    Timelist = table.Column<List<Guid>>(type: "uuid[]", nullable: true),
-                    Comments = table.Column<List<Guid>>(type: "uuid[]", nullable: true),
+                    InterviewTime = table.Column<int>(type: "integer", nullable: false),
+                    Submissions = table.Column<List<int>>(type: "integer[]", nullable: true),
+                    Uploads = table.Column<List<int>>(type: "integer[]", nullable: true),
+                    Messages = table.Column<List<int>>(type: "integer[]", nullable: true),
+                    Timelist = table.Column<List<int>>(type: "integer[]", nullable: true),
+                    Comments = table.Column<List<int>>(type: "integer[]", nullable: true),
                     Score = table.Column<int>(type: "integer", nullable: false),
                     Status = table.Column<int>(type: "integer", nullable: false),
-                    LastSubmission = table.Column<DateTime>(type: "timestamp without time zone", nullable: false),
-                    RegisterTime = table.Column<DateTime>(type: "timestamp without time zone", nullable: false)
+                    LastSubmission = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    RegisterTime = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    LastCaptcha = table.Column<string>(type: "text", nullable: true),
+                    LastCaptchaTime = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
                 },
                 constraints: table =>
                 {
-                    table.PrimaryKey("PK_Students", x => x.Guid);
+                    table.PrimaryKey("PK_Students", x => x.Id);
                 });
 
             migrationBuilder.CreateTable(
                 name: "Submissions",
                 columns: table => new
                 {
-                    Guid = table.Column<Guid>(type: "uuid", nullable: false),
-                    Host = table.Column<Guid>(type: "uuid", nullable: false),
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Host = table.Column<int>(type: "integer", nullable: false),
                     Name = table.Column<string>(type: "text", nullable: true),
                     Stuid = table.Column<string>(type: "text", nullable: true),
                     Sex = table.Column<int>(type: "integer", nullable: false),
@@ -102,20 +130,21 @@ namespace _2021_backend.Migrations
                     Email = table.Column<string>(type: "text", nullable: true),
                     Tel = table.Column<string>(type: "text", nullable: true),
                     Exp = table.Column<int>(type: "integer", nullable: false),
-                    Timelist = table.Column<List<Guid>>(type: "uuid[]", nullable: true),
+                    Timelist = table.Column<List<int>>(type: "integer[]", nullable: true),
                     Address = table.Column<string>(type: "text", nullable: true),
-                    SubmitTime = table.Column<DateTime>(type: "timestamp without time zone", nullable: false)
+                    SubmitTime = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
                 },
                 constraints: table =>
                 {
-                    table.PrimaryKey("PK_Submissions", x => x.Guid);
+                    table.PrimaryKey("PK_Submissions", x => x.Id);
                 });
 
             migrationBuilder.CreateTable(
                 name: "Users",
                 columns: table => new
                 {
-                    Guid = table.Column<Guid>(type: "uuid", nullable: false),
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
                     stuID = table.Column<string>(type: "text", nullable: true),
                     Name = table.Column<string>(type: "text", nullable: true),
                     Secret = table.Column<string>(type: "text", nullable: true),
@@ -123,7 +152,7 @@ namespace _2021_backend.Migrations
                 },
                 constraints: table =>
                 {
-                    table.PrimaryKey("PK_Users", x => x.Guid);
+                    table.PrimaryKey("PK_Users", x => x.Id);
                 });
         }
 
@@ -132,6 +161,9 @@ namespace _2021_backend.Migrations
             migrationBuilder.DropTable(
                 name: "Comments");
 
+            migrationBuilder.DropTable(
+                name: "FileDesc");
+
             migrationBuilder.DropTable(
                 name: "Sessions");
 

Migrations/BackendContextModelSnapshot.cs

@@ -7,6 +7,8 @@ using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
 using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
 using _2021_backend.Data;
 
+#nullable disable
+
 namespace _2021_backend.Migrations
 {
     [DbContext(typeof(BackendContext))]
@@ -16,48 +18,116 @@ namespace _2021_backend.Migrations
         {
 #pragma warning disable 612, 618
             modelBuilder
-                .HasAnnotation("Relational:MaxIdentifierLength", 63)
-                .HasAnnotation("ProductVersion", "5.0.9")
-                .HasAnnotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn);
+                .HasAnnotation("ProductVersion", "6.0.2")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
 
             modelBuilder.Entity("_2021_backend.Models.Comment", b =>
                 {
-                    b.Property<Guid>("Guid")
+                    b.Property<int>("Id")
                         .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
 
                     b.Property<DateTime>("AddTime")
-                        .HasColumnType("timestamp without time zone");
+                        .HasColumnType("timestamp with time zone");
 
                     b.Property<string>("Content")
                         .IsRequired()
                         .HasColumnType("text");
 
-                    b.Property<Guid>("Operator")
-                        .HasColumnType("uuid");
+                    b.Property<int>("Operator")
+                        .HasColumnType("integer");
 
-                    b.Property<Guid>("Student")
-                        .HasColumnType("uuid");
+                    b.Property<int>("Student")
+                        .HasColumnType("integer");
 
-                    b.HasKey("Guid");
+                    b.HasKey("Id");
 
                     b.ToTable("Comments");
                 });
 
+            modelBuilder.Entity("_2021_backend.Models.FileDesc", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .HasColumnType("text");
+
+                    b.Property<int>("OwnerId")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("Path")
+                        .HasColumnType("text");
+
+                    b.Property<int>("Size")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("UploadTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("FileDesc");
+                });
+
+            modelBuilder.Entity("_2021_backend.Models.Session", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("BeginTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("Capacity")
+                        .HasColumnType("integer");
+
+                    b.Property<List<int>>("Chiefs")
+                        .HasColumnType("integer[]");
+
+                    b.Property<DateTime>("Day")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("Place")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<bool>("SendSMS")
+                        .HasColumnType("boolean");
+
+                    b.Property<List<int>>("Students")
+                        .HasColumnType("integer[]");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Sessions");
+                });
+
             modelBuilder.Entity("_2021_backend.Models.SMS", b =>
                 {
-                    b.Property<Guid>("Guid")
+                    b.Property<int>("Id")
                         .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
 
                     b.Property<List<string>>("Data")
                         .HasColumnType("text[]");
 
-                    b.Property<Guid>("Host")
-                        .HasColumnType("uuid");
+                    b.Property<int>("Host")
+                        .HasColumnType("integer");
 
                     b.Property<DateTime>("SendTime")
-                        .HasColumnType("timestamp without time zone");
+                        .HasColumnType("timestamp with time zone");
 
                     b.Property<string>("Sender")
                         .HasColumnType("text");
@@ -68,52 +138,21 @@ namespace _2021_backend.Migrations
                     b.Property<int>("Type")
                         .HasColumnType("integer");
 
-                    b.HasKey("Guid");
+                    b.HasKey("Id");
 
                     b.ToTable("SMS");
                 });
 
-            modelBuilder.Entity("_2021_backend.Models.Session", b =>
-                {
-                    b.Property<Guid>("Guid")
-                        .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
-
-                    b.Property<DateTime>("BeginTime")
-                        .HasColumnType("timestamp without time zone");
-
-                    b.Property<int>("Capacity")
-                        .HasColumnType("integer");
-
-                    b.Property<List<Guid>>("Chiefs")
-                        .HasColumnType("uuid[]");
-
-                    b.Property<DateTime>("Day")
-                        .HasColumnType("timestamp without time zone");
-
-                    b.Property<string>("Place")
-                        .IsRequired()
-                        .HasColumnType("text");
-
-                    b.Property<bool>("SendSMS")
-                        .HasColumnType("boolean");
-
-                    b.Property<List<Guid>>("Students")
-                        .HasColumnType("uuid[]");
-
-                    b.HasKey("Guid");
-
-                    b.ToTable("Sessions");
-                });
-
             modelBuilder.Entity("_2021_backend.Models.Student", b =>
                 {
-                    b.Property<Guid>("Guid")
+                    b.Property<int>("Id")
                         .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
+                        .HasColumnType("integer");
 
-                    b.Property<List<Guid>>("Comments")
-                        .HasColumnType("uuid[]");
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<List<int>>("Comments")
+                        .HasColumnType("integer[]");
 
                     b.Property<string>("Email")
                         .HasColumnType("text");
@@ -124,23 +163,29 @@ namespace _2021_backend.Migrations
                     b.Property<int>("Grade")
                         .HasColumnType("integer");
 
-                    b.Property<Guid>("InterviewTime")
-                        .HasColumnType("uuid");
+                    b.Property<int>("InterviewTime")
+                        .HasColumnType("integer");
+
+                    b.Property<string>("LastCaptcha")
+                        .HasColumnType("text");
+
+                    b.Property<DateTime>("LastCaptchaTime")
+                        .HasColumnType("timestamp with time zone");
 
                     b.Property<DateTime>("LastSubmission")
-                        .HasColumnType("timestamp without time zone");
+                        .HasColumnType("timestamp with time zone");
 
                     b.Property<string>("Major")
                         .HasColumnType("text");
 
-                    b.Property<List<Guid>>("Messages")
-                        .HasColumnType("uuid[]");
+                    b.Property<List<int>>("Messages")
+                        .HasColumnType("integer[]");
 
                     b.Property<string>("Name")
                         .HasColumnType("text");
 
                     b.Property<DateTime>("RegisterTime")
-                        .HasColumnType("timestamp without time zone");
+                        .HasColumnType("timestamp with time zone");
 
                     b.Property<int>("Score")
                         .HasColumnType("integer");
@@ -154,28 +199,33 @@ namespace _2021_backend.Migrations
                     b.Property<string>("Stuid")
                         .HasColumnType("text");
 
-                    b.Property<List<Guid>>("Submissions")
-                        .HasColumnType("uuid[]");
+                    b.Property<List<int>>("Submissions")
+                        .HasColumnType("integer[]");
 
                     b.Property<string>("Tel")
                         .HasColumnType("text");
 
-                    b.Property<List<Guid>>("Timelist")
-                        .HasColumnType("uuid[]");
+                    b.Property<List<int>>("Timelist")
+                        .HasColumnType("integer[]");
+
+                    b.Property<List<int>>("Uploads")
+                        .HasColumnType("integer[]");
 
                     b.Property<int>("Yard")
                         .HasColumnType("integer");
 
-                    b.HasKey("Guid");
+                    b.HasKey("Id");
 
                     b.ToTable("Students");
                 });
 
             modelBuilder.Entity("_2021_backend.Models.Submission", b =>
                 {
-                    b.Property<Guid>("Guid")
+                    b.Property<int>("Id")
                         .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
 
                     b.Property<string>("Address")
                         .HasColumnType("text");
@@ -189,8 +239,8 @@ namespace _2021_backend.Migrations
                     b.Property<int>("Grade")
                         .HasColumnType("integer");
 
-                    b.Property<Guid>("Host")
-                        .HasColumnType("uuid");
+                    b.Property<int>("Host")
+                        .HasColumnType("integer");
 
                     b.Property<string>("Major")
                         .HasColumnType("text");
@@ -205,27 +255,29 @@ namespace _2021_backend.Migrations
                         .HasColumnType("text");
 
                     b.Property<DateTime>("SubmitTime")
-                        .HasColumnType("timestamp without time zone");
+                        .HasColumnType("timestamp with time zone");
 
                     b.Property<string>("Tel")
                         .HasColumnType("text");
 
-                    b.Property<List<Guid>>("Timelist")
-                        .HasColumnType("uuid[]");
+                    b.Property<List<int>>("Timelist")
+                        .HasColumnType("integer[]");
 
                     b.Property<int>("Yard")
                         .HasColumnType("integer");
 
-                    b.HasKey("Guid");
+                    b.HasKey("Id");
 
                     b.ToTable("Submissions");
                 });
 
             modelBuilder.Entity("_2021_backend.Models.User", b =>
                 {
-                    b.Property<Guid>("Guid")
+                    b.Property<int>("Id")
                         .ValueGeneratedOnAdd()
-                        .HasColumnType("uuid");
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
 
                     b.Property<string>("Name")
                         .HasColumnType("text");
@@ -239,7 +291,7 @@ namespace _2021_backend.Migrations
                     b.Property<string>("stuID")
                         .HasColumnType("text");
 
-                    b.HasKey("Guid");
+                    b.HasKey("Id");
 
                     b.ToTable("Users");
                 });

Models/Comment.cs

@@ -11,15 +11,16 @@ namespace _2021_backend.Models
     {
         public Comment()
         {
-            Guid = Guid.NewGuid();  
+            Id = 0;
             AddTime = DateTime.Now;
         }
 
         [Key]
-        public Guid Guid { get; set; }
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+        public int Id { get; set; }
         [Required()]
         [Display(Name = "评论者")]
-        public Guid Operator { get; set; }
+        public int Operator { get; set; }
 
         [Required()]
         [Display(Name = "内容")]
@@ -28,13 +29,13 @@ namespace _2021_backend.Models
         [DataType(DataType.DateTime)]
         public DateTime AddTime { get; set; }
         [Display(Name = "被评论者")]
-        public Guid Student { get; set; }
-        public Comment(Guid opid,string content, Guid stuguid)
+        public int Student { get; set; }
+        public Comment(int opid, string content, int stuint)
         {
-            Guid = Guid.NewGuid();
+            Id = 0;
             Operator = opid;
             Content = content;
-            Student = stuguid;
+            Student = stuint;
             AddTime = DateTime.Now;
         }
 

Models/SMS.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
 using System.Linq;
+using System.ComponentModel.DataAnnotations.Schema;
 
 namespace _2021_backend.Models
 {
@@ -12,22 +13,23 @@ namespace _2021_backend.Models
         TimeSelect,
         TimeSet,
         Signed,
-        Reply
+        Reply,
+        Captcha,
     }
     public class SMS
     {
         public SMS()
         {
-            Guid = Guid.NewGuid();
+            Id = 0;
             Tel = "";
             Data = new List<string> { };
             Type = SMSType.Accept;
             Sender = "";
             SendTime = DateTime.Now;
         }
-        public SMS(SMSPartialDto dto, Guid host)
+        public SMS(SMSPartialDto dto, int host)
         {
-            Guid = Guid.NewGuid();
+            Id = 0;
             Tel = dto.SubscriberNumber;
             Host = host;
             Sender = dto.SubscriberNumber.ToString();
@@ -37,9 +39,10 @@ namespace _2021_backend.Models
             SendTime = tm;
         }
         [Key]
-        public Guid Guid { get; set; }
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
+        public int Id { get; set; }
         [Display(Name = "Host")]
-        public Guid Host { get; set; }
+        public int Host { get; set; }
         [Display(Name = "电话号码")]
         public string Tel { get; set; }
 

Models/Session.cs

@@ -14,12 +14,13 @@ namespace _2021_backend.Models
 
         public Session()
         {
-            Guid = Guid.NewGuid();
+            Id = 0;
         }
         [Key]
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
         [Required()]
-        [Display(Name = "场次GUID")]
-        public Guid Guid { get; set; }
+        [Display(Name = "场次int")]
+        public int Id { get; set; }
         [Required()]
         [Display(Name = "活动日期")]
         [DataType(DataType.Date)]
@@ -35,7 +36,7 @@ namespace _2021_backend.Models
         [Required()]
         public string Place { get; set; }
         [Display(Name = "主活动官")]
-        public List<Guid> Chiefs { get; set; }
+        public List<int> Chiefs { get; set; }
 
         [Display(Name = "可容纳人数")]
         public int Capacity { get; set; }
@@ -43,7 +44,7 @@ namespace _2021_backend.Models
         [Display(Name = "短信通知")]
         public bool SendSMS { get; set; }
         [Display(Name = "活动的人")]
-        public List<Guid> Students { get; set; }
+        public List<int> Students { get; set; }
 
     }
     public class SessionDto

Models/Student.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
 using System.Linq;
 using System.Threading.Tasks;
 
@@ -14,6 +15,7 @@ namespace _2021_backend.Models
         需调整时间,
         已确认时间,
         不通过,
+        已提交,
         已评分,
         暂缺
     }
@@ -47,8 +49,21 @@ namespace _2021_backend.Models
         暂缺 = 0,
         萌新 = 1,
         略有了解 = 2,
-        了解较多 = 3,
-        轻车熟路 = 4
+        轻车熟路 = 3,
+    }
+
+    public class FileDesc
+    {
+        [Key]
+        public int Id { get; set; }
+
+        public int OwnerId { get; set; }    
+        public string Name { get; set; }    
+        public int Size { get; set; }    
+
+        public string Path { get; set; }    
+
+        public DateTime UploadTime { get; set; }
     }
 
     public class Student
@@ -65,21 +80,21 @@ namespace _2021_backend.Models
             Yard = sub.Yard;
             Exp = sub.Exp;
             Timelist = sub.Timelist;
-            Submissions.Add(sub.Guid);
+            Submissions.Add(sub.Id);
         }
         public Student()
         {
-            Guid = Guid.NewGuid();
-            Comments = new List<Guid>();
-            Messages = new List<Guid>();
-            Submissions = new List<Guid>();
-            Timelist = new List<Guid>();
+            Id = 0;
+            Comments = new List<int>();
+            Messages = new List<int>();
+            Submissions = new List<int>();
+            Timelist = new List<int>();
         }
 
         public static Student create(Submission sub)
         {
             Student student = new Student();
-            student.Guid = Guid.NewGuid();
+            student.Id = 0;
             student.Name = sub.Name;
             student.Email = sub.Email;
             student.Tel = sub.Tel;
@@ -90,13 +105,13 @@ namespace _2021_backend.Models
             student.Yard = sub.Yard;
             student.Exp = sub.Exp;
             student.Timelist = sub.Timelist;
-            student.Submissions.Add(sub.Guid);
             student.RegisterTime = sub.SubmitTime;
             return student;
         }
         [Key]
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
         [Display(Name = "ID")]
-        public Guid Guid { get; set; }
+        public int Id { get; set; }
         [Display(Name = "姓名")]
         public string Name { get; set; }
         [Display(Name = "学号")]
@@ -119,15 +134,19 @@ namespace _2021_backend.Models
         public experience Exp { get; set; }
 
         [Display(Name = "最终场次")]
-        public Guid InterviewTime { get; set; }
-        [Display(Name = "提交记录")]
-        public List<Guid> Submissions { get; set; }
+        public int InterviewTime { get; set; }
+        [Display(Name = "报名记录")]
+        public List<int> Submissions { get; set; }
+
+        [Display(Name = "提交的文件")]
+        public List<int> Uploads { get; set; }
+
         [Display(Name = "短信记录")]
-        public List<Guid> Messages { get; set; }
+        public List<int> Messages { get; set; }
         [Display(Name = "可选场次")]
-        public List<Guid> Timelist { get; set; }
+        public List<int> Timelist { get; set; }
         [Display(Name = "评论")]
-        public List<Guid> Comments { get; set; }
+        public List<int> Comments { get; set; }
         [Display(Name = "打分")]
         public int Score { get; set; }
 
@@ -141,5 +160,9 @@ namespace _2021_backend.Models
         [Display(Name = "报名时间")]
         [DataType(DataType.DateTime)]
         public DateTime RegisterTime { get; set; }
+
+        public string LastCaptcha { get; set; } 
+
+        public DateTime LastCaptchaTime { get; set; }
     }
 }

Models/Submission.cs

@@ -3,6 +3,7 @@ using Org.BouncyCastle.Asn1.Cms;
 using System;
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
 using System.Linq;
 using System.Text.RegularExpressions;
 using System.Threading.Tasks;
@@ -11,8 +12,9 @@ namespace _2021_backend.Models
 {
     public class Submission
     {
-        public Submission() { 
-            Guid = Guid.NewGuid();
+        public Submission()
+        {
+            Id = 0;
             SubmitTime = DateTime.Now;
         }
         public Submission(SubmissionDto Dto, string ip)
@@ -26,16 +28,17 @@ namespace _2021_backend.Models
             Tel = Dto.Tel;
             Exp = (experience)Dto.Exp;
             Yard = (yard)Dto.Yard;
-            Timelist = new List<Guid>();
-            Guid = System.Guid.NewGuid();
+            Timelist = new List<int>();
+            Id = 0;
             SubmitTime = DateTime.Now;
             Address = ip;
         }
         [Key]
+        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
         [Display(Name = "ID")]
-        public Guid Guid { get; set; }
+        public int Id { get; set; }
         [Display(Name = "Host")]
-        public Guid Host {  get; set; }
+        public int Host { get; set; }
         [Display(Name = "姓名")]
         public string Name { get; set; }
         [Display(Name = "学号")]
@@ -58,7 +61,7 @@ namespace _2021_backend.Models
         public experience Exp { get; set; }
 
         [Display(Name = "时间列表")]
-        public List<Guid> Timelist { get; set; }
+        public List<int> Timelist { get; set; }
         [Display(Name = "Ip Address")]
         public string Address { get; set; }
         [Display(Name = "提交时间")]
@@ -118,7 +121,7 @@ namespace _2021_backend.Models
             if (Major.Length > 20)
                 return false;
             if (Yard >= 6 && Yard <= 0) return false;
-            if(Exp >= 5 && Exp <= 0) return false;
+            if (Exp >= 3 && Exp <= 0) return false;
             if (!r.IsMatch(Email))
             {
                 return false;

Models/User.cs

@@ -15,14 +15,14 @@ namespace _2021_backend.Models
     {
         public User()
         {
-            Guid = Guid.NewGuid();  
+            Id = 0;
         }
 
         public static User Bot;
         [Key]
         [DatabaseGenerated(DatabaseGeneratedOption.Identity)]
         [Display(Name = "ID")]
-        public Guid Guid { get; set; }
+        public int Id { get; set; }
         [Display(Name = "学号")]
         public string stuID { get; set; }
         [Display(Name = "姓名")]

Pages/Account/Login.cshtml.cs

@@ -85,7 +85,7 @@ namespace _2021_backend.Pages.Account
             {
                 var identity = new ClaimsIdentity(CookieAuthenticationDefaults.AuthenticationScheme, ClaimTypes.Name, ClaimTypes.Role);
                 identity.AddClaim(new Claim(ClaimTypes.Name, user.Name));
-                identity.AddClaim(new Claim(ClaimTypes.Sid, user.Guid.ToString()));
+                identity.AddClaim(new Claim(ClaimTypes.Sid, user.Id.ToString()));
                 identity.AddClaim(new Claim(ClaimTypes.NameIdentifier, username));
                 if (user.isManager)
                 {

Pages/Message/Index.cshtml

@@ -9,6 +9,7 @@
     <strong>@Html.DisplayFor(model => Model.Errmsg)</strong>
 </h5>
 <h3><strong>发送短信</strong></h3>
+
 <form method="post">
     <input type="hidden" asp-for="pageid" />
     <input type="submit" value="拉取5天内的回复短信" class="btn btn-primary" asp-page-handler="Pull" />

Pages/Message/Index.cshtml.cs

@@ -40,12 +40,12 @@ namespace _2021_backend.Pages.Message
             Context = context;
         }
 
-        public IActionResult Construct(int PageId)
+        public IActionResult Construct(int PageId, string emsg)
         {
-            List<Guid> stus;
-            IQueryable<Guid> q;
-            if (!String.IsNullOrEmpty(SearchString)) q = from e in Context.Students where e.Name.Contains(SearchString) select e.Guid;
-            else q = from e in Context.Students select e.Guid;
+            List<int> stus;
+            IQueryable<int> q;
+            if (!String.IsNullOrEmpty(SearchString)) q = from e in Context.Students where e.Name.Contains(SearchString) select e.Id;
+            else q = from e in Context.Students select e.Id;
             stus = q.ToList();
             var q2 = from e in Context.SMS where stus.Contains(e.Host) select e;
             if (showReceive && !showSend) q2 = from e in q2 where e.Type == SMSType.Reply select e;
@@ -62,101 +62,149 @@ namespace _2021_backend.Pages.Message
             int count = (PageId + 1) * pageSize > cnt ? (cnt - PageId * pageSize) : pageSize;
             Messages = Messages.GetRange(PageId * pageSize, count);
 
+            Errmsg = emsg;
+
             return Page();
         }
 
         public async Task<IActionResult> OnGetAsync(int PageId)
         {
-            return Construct(PageId);
+            return Construct(PageId, "");
         }
 
         public async Task<IActionResult> OnPostAsync(int PageId)
         {
-            return Construct(PageId);
+            return Construct(PageId, "");
         }
 
         public async void OnPostPullAsync(int PageId)
         {
-
+            if (HttpContext.User.HasClaim((c) =>
+            {
+                return c.Type == ClaimTypes.Role && (
+                c.Value == "admin" || c.Value == "manager");
+            }))
+            {
                 var stu = Context.Students.ToList();
                 foreach (var e in stu)
                 {
                     await Utils.TencentSMS.Pull(Context, e, true);
                 }
 
-            Construct(PageId);
+                Construct(PageId, "");
+            }
+            else Construct(PageId, "您无权进行此操作");
         }
 
         public async Task<IActionResult> OnPostSignAsync(int PageId)
         {
-
+            if (HttpContext.User.HasClaim((c) =>
+            {
+                return c.Type == ClaimTypes.Role && (
+                c.Value == "admin" || c.Value == "manager");
+            }))
+            {
                 var stu = Context.Students.ToList();
                 foreach (var e in stu)
                 {
                     if (e.Status == status.刚报名)
-                    await Utils.TencentSMS.Send(Context, SMSType.Signed, e, Context.Users.Find(Guid.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
+                        await Utils.TencentSMS.Send(Context, SMSType.Signed, e, Context.Users.Find(int.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
                 }
 
-            return Construct(PageId);
+                return Construct(PageId, "");
+            }
+            else return Construct(PageId, "您无权进行此操作");
         }
 
         public async Task<IActionResult> OnPostResultRejectAsync(int PageId)
+        {
+            if (HttpContext.User.HasClaim((c) =>
+            {
+                return c.Type == ClaimTypes.Role && (
+                c.Value == "admin" || c.Value == "manager");
+            }))
             {
                 var stu = Context.Students.ToList();
                 foreach (var e in stu)
                 {
                     if (e.Status == status.不通过)
                     {
-                    if (!Context.SMS.Any(it => it.Host == e.Guid && it.Type == SMSType.Reject))
-                        await Utils.TencentSMS.Send(Context, SMSType.Reject, e, Context.Users.Find(Guid.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
+                        if (!Context.SMS.Any(it => it.Host == e.Id && it.Type == SMSType.Reject))
+                            await Utils.TencentSMS.Send(Context, SMSType.Reject, e, Context.Users.Find(int.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
                     }
                 }
-            return Construct(PageId);
+                return Construct(PageId, "");
+            }
+            else return Construct(PageId, "您无权进行此操作");
         }
 
         public async Task<IActionResult> OnPostTimeSelectAsync(int PageId)
+        {
+            if (HttpContext.User.HasClaim((c) =>
+            {
+                return c.Type == ClaimTypes.Role && (
+                c.Value == "admin" || c.Value == "manager");
+            }))
             {
                 var stu = Context.Students.ToList();
                 foreach (var e in stu)
                 {
                     if (e.Status != status.不通过 && e.Status != status.已选时间)
                     {
-                    await Utils.TencentSMS.Send(Context, SMSType.TimeSelect, e, Context.Users.Find(Guid.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
+                        await Utils.TencentSMS.Send(Context, SMSType.TimeSelect, e, Context.Users.Find(int.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
                     }
                 }
                 Context.SaveChanges();
-            return Construct(PageId);
+                return Construct(PageId, "");
+            }
+            else return Construct(PageId, "您无权进行此操作");
         }
 
-        public async Task<IActionResult> OnPostResultAccpetAsync(int PageId)
+        public async Task<IActionResult> OnPostResultAcceptAsync(int PageId)
+        {
+            if (HttpContext.User.HasClaim((c) =>
+            {
+                return c.Type == ClaimTypes.Role && (
+                c.Value == "admin" || c.Value == "manager");
+            }))
             {
                 var stu = Context.Students.ToList();
                 foreach (var e in stu)
                 {
                     if (e.Status == status.通过)
                     {
-                    if (!Context.SMS.Any(it => it.Host == e.Guid && it.Type == SMSType.Accept))
-                        await Utils.TencentSMS.Send(Context, SMSType.Accept, e, Context.Users.Find(Guid.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
+                        if (!Context.SMS.Any(it => it.Host == e.Id && it.Type == SMSType.Accept))
+                            await Utils.TencentSMS.Send(Context, SMSType.Accept, e, Context.Users.Find(int.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
                     }
 
                 }
-            return Construct(PageId);
+                return Construct(PageId, "");
+            }
+            else return Construct(PageId, "您无权进行此操作");
         }
 
         public async Task<IActionResult> OnPostTimeSetAsync(int PageId)
+        {
+            if (HttpContext.User.HasClaim((c) =>
+            {
+                return c.Type == ClaimTypes.Role && (
+                c.Value == "admin" || c.Value == "manager");
+            }))
             {
                 var stu = Context.Students.ToList();
                 foreach (var e in stu)
                 {
                     var t = Context.Sessions.Find(e.InterviewTime);
-                if(t != null && t.Students.Find(s => s==e.Guid)!= Guid.Empty && e.Status == status.已选时间)
+                    if (t != null && t.Students.Find(s => s == e.Id) != 0 && e.Status == status.已选时间)
                     {
-                    await Utils.TencentSMS.Send(Context, SMSType.TimeSet, e, Context.Users.Find(Guid.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
+                        await Utils.TencentSMS.Send(Context, SMSType.TimeSet, e, Context.Users.Find(int.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
                         e.Status = status.已确认时间;
                     }
                 }
                 Context.SaveChanges();
-            return Construct(PageId);
+                return Construct(PageId, "");
+            }
+            else return Construct(PageId, "您无权进行此操作");
         }
     }
 }

Pages/Sessions/Create.cshtml.cs

@@ -22,7 +22,7 @@ namespace _2021_backend.Pages.Sessions
 
         [BindProperty]
         [Display(Name = "活动官")]
-        public string ChiefGuid { get; set; }
+        public string Chiefint { get; set; }
 
 
         public List<SelectListItem> ChiefList { get; set; }
@@ -34,7 +34,7 @@ namespace _2021_backend.Pages.Sessions
 
         public async Task<IActionResult> OnGet()
         {
-            var qlst = from e in Context.Users select (new SelectListItem { Value = e.Guid.ToString(), Text = e.Name, Selected = false, Disabled = false });
+            var qlst = from e in Context.Users select (new SelectListItem { Value = e.Id.ToString(), Text = e.Name, Selected = false, Disabled = false });
             var lst = qlst.ToList().Distinct().ToList();
             ChiefList = lst;
             return Page();
@@ -48,8 +48,8 @@ namespace _2021_backend.Pages.Sessions
             {
                 return Page();
             }
-            InterviewTime.Students = new List<Guid>();
-            InterviewTime.Chiefs = new List<Guid>();
+            InterviewTime.Students = new List<int>();
+            InterviewTime.Chiefs = new List<int>();
             Session interviewTimeSecond = new Session();
             if (CreateTwo)
             {
@@ -62,9 +62,9 @@ namespace _2021_backend.Pages.Sessions
                         Day = InterviewTime.Day,
                         BeginTime = InterviewTime.BeginTime,
                         Place = anotherPlace,
-                        Chiefs = new List<Guid>(),
+                        Chiefs = new List<int>(),
                         SendSMS = InterviewTime.SendSMS,
-                        Students = new List<Guid>(),
+                        Students = new List<int>(),
                         Capacity = InterviewTime.Capacity
                     };
                     Context.Add(interviewTimeSecond);

Pages/Sessions/Delete.cshtml

@@ -34,7 +34,7 @@
     </dl>
     
     <form method="post">
-        <input type="hidden" asp-for="InterviewTime.Guid" />
+        <input type="hidden" asp-for="InterviewTime.Id" />
         <input type="submit" value="确定删除" class="btn btn-danger" /> |
         <a asp-page="./Index">Back to List</a>
     </form>

Pages/Sessions/Delete.cshtml.cs

@@ -24,13 +24,13 @@ namespace _2021_backend.Pages.Sessions
 
         public async Task<IActionResult> OnGetAsync(string? id)
         {
-            Guid guid = Guid.Parse(id);
+            int idx = int.Parse(id);
             if (id == null)
             {
                 return NotFound();
             }
 
-            InterviewTime = Context.Sessions.Find(guid);
+            InterviewTime = Context.Sessions.Find(idx);
 
             if (InterviewTime == null)
             {
@@ -41,12 +41,12 @@ namespace _2021_backend.Pages.Sessions
 
         public async Task<IActionResult> OnPostAsync(string? id)
         {
-            Guid guid = Guid.Parse(id);
+            int idx = int.Parse(id);
             if (id == null)
             {
                 return NotFound();
             }
-            InterviewTime = await Context.Sessions.FindAsync(guid);
+            InterviewTime = await Context.Sessions.FindAsync(idx);
 
             if (InterviewTime != null)
             {
@@ -57,15 +57,15 @@ namespace _2021_backend.Pages.Sessions
                         Student stu = Context.Students.Find(x);
                         if (stu != null)
                         {
-                            stu.InterviewTime = Guid.Empty;
-                            stu.Timelist.RemoveAll(it => it == guid);
+                            stu.InterviewTime = 0;
+                            stu.Timelist.RemoveAll(it => it == idx);
                         }
                         Context.SaveChanges();
                     }
                 }
                 foreach(var x in Context.Students)
                 {
-                    x.Timelist.RemoveAll(it => it == guid);
+                    x.Timelist.RemoveAll(it => it == idx);
                 }
                 Context.Sessions.Remove(InterviewTime);
                 Context.SaveChanges();

Pages/Sessions/Details.cshtml

@@ -64,6 +64,6 @@
     </dl>
 </div>
 <div>
-    <a asp-page="./Edit" asp-route-id="@Model.CurSession.Guid">Edit</a> |
+    <a asp-page="./Edit" asp-route-id="@Model.CurSession.Id">Edit</a> |
     <a asp-page="./Index">Back to List</a>
 </div>

Pages/Sessions/Details.cshtml.cs

@@ -23,12 +23,12 @@ namespace _2021_backend.Pages.Sessions
 
         public async Task<IActionResult> OnGetAsync(string? id)
         {
-            Guid guid = Guid.Parse(id);
+            int idx = int.Parse(id);
             if (id == null)
             {
                 return NotFound();
             }
-            CurSession = Context.Sessions.Find(guid);
+            CurSession = Context.Sessions.Find(idx);
             if (CurSession == null)
             {
                 return NotFound();

Pages/Sessions/Edit.cshtml

@@ -13,8 +13,8 @@
     <div class="col-md-4">
         <form method="post">
             <div asp-validation-summary="ModelOnly" class="text-danger"></div>
-            <input type="hidden" asp-for="CurSession.Guid" />
-            <input type="hidden" asp-for="CurGuid">
+            <input type="hidden" asp-for="CurSession.Id" />
+            <input type="hidden" asp-for="Curint">
             <div class="form-group">
                 <label asp-for="newDay" class="control-label"></label>
                 <input asp-for="newDay" class="form-control" />
@@ -51,7 +51,7 @@
 <form method="post">
     <label class="col-sm-2">添加一个</label>
     <select asp-items=Model.Stulist id="stuselect" asp-for="addedStu" class="col-sm-2"></select>
-    <input type="hidden" asp-for="CurGuid" />
+    <input type="hidden" asp-for="Curint" />
     <input type="submit" value="Go!" class="btn btn-primary" style="margin-left:5px" asp-page-handler="Add" />
 </form>
 <br />
@@ -76,11 +76,11 @@
                         <td>@Html.DisplayFor(model=>stu.Name)</td>
                         <td>
 
-                            <a asp-page="/Students/Details" asp-route-idstr=@stu.Guid.ToString() class="btn btn-primary">详细信息</a>
+                            <a asp-page="/Students/Details" asp-route-idstr=@stu.Id.ToString() class="btn btn-primary">详细信息</a>
                             <div style="float:left">
                                 <form method="post">
-                                    <input type="hidden" asp-for="CurGuid">
-                                    <input type="submit" value="删除" class="btn btn-danger" asp-page-handler="Delete" asp-route-id=@stu.Guid.ToString() />
+                                    <input type="hidden" asp-for="Curint">
+                                    <input type="submit" value="删除" class="btn btn-danger" asp-page-handler="Delete" asp-route-id=@stu.Id.ToString() />
                                 </form>
                             </div>
 
@@ -98,7 +98,7 @@
 <form method="post">
     <label class="col-sm-2">添加一个</label>
     <select id="chiefselect"asp-items=Model.ChiefList asp-for="addedChief" class="col-sm-2"></select>
-    <input type="hidden" asp-for="CurGuid" />
+    <input type="hidden" asp-for="Curint" />
     <input type="submit" value="Go!" class="btn btn-primary" style="margin-left:5px" asp-page-handler="AddChief" />
 </form>
 <br />
@@ -121,8 +121,8 @@
                         <td>
                             <div style="float:left">
                                 <form method="post">
-                                    <input type="hidden" asp-for="CurGuid">
-                                    <input type="submit" value="删除" class="btn btn-danger" asp-page-handler="DeleteChief" asp-route-id=@chf.Guid.ToString() />
+                                    <input type="hidden" asp-for="Curint">
+                                    <input type="submit" value="删除" class="btn btn-danger" asp-page-handler="DeleteChief" asp-route-id=@chf.Id.ToString() />
                                 </form>
                             </div>
                         </td>

Pages/Sessions/Edit.cshtml.cs

@@ -24,7 +24,7 @@ namespace _2021_backend.Pages.Sessions
         public Session CurSession { get; set; }
 
         [BindProperty]
-        public string CurGuid { get; set; }
+        public string Curint { get; set; }
 
         [BindProperty]
         public string ChiefSearch { get; set; }
@@ -34,7 +34,7 @@ namespace _2021_backend.Pages.Sessions
         public List<SelectListItem> Stulist { get; set; }
 
         [BindProperty]
-        public Guid addedChief { get; set; }
+        public int addedChief { get; set; }
 
         [BindProperty]
         public string addedStu { get; set; }
@@ -71,13 +71,13 @@ namespace _2021_backend.Pages.Sessions
 
         public IActionResult Construct(string id)
         {
-            Guid guid = Guid.Parse(id);
+            int idx = int.Parse(id);
             if (id == null)
             {
                 return NotFound();
             }
-            CurGuid = id;
-            CurSession = Context.Sessions.Find(guid);
+            Curint = id;
+            CurSession = Context.Sessions.Find(idx);
 
             newDay = CurSession.Day;
             newTime = CurSession.BeginTime;
@@ -86,10 +86,10 @@ namespace _2021_backend.Pages.Sessions
             newPlace = CurSession.Place;    
 
             if (CurSession == null) return RedirectToPage("./Index", new { errmsg = "未找到该活动场次" });
-            var qlst = from e in Context.Users select (new SelectListItem { Value = e.Guid.ToString(), Text = e.Name, Selected = false, Disabled = false });
+            var qlst = from e in Context.Users select (new SelectListItem { Value = e.Id.ToString(), Text = e.Name, Selected = false, Disabled = false });
             ChiefList = qlst.ToList().Distinct().ToList();
 
-            var slst = from e in Context.Students where e.InterviewTime == Guid.Empty select new SelectListItem { Value = e.Guid.ToString(), Text = e.Name, Selected = false, Disabled = false };
+            var slst = from e in Context.Students where e.InterviewTime == 0 select new SelectListItem { Value = e.Id.ToString(), Text = e.Name, Selected = false, Disabled = false };
             Stulist = slst.ToList().Distinct().ToList();
             return Page();
         }
@@ -103,7 +103,7 @@ namespace _2021_backend.Pages.Sessions
         // more details, see https://aka.ms/RazorPagesCRUD.
         public async Task<IActionResult> OnPostAsync()
         {
-            var ssn = Context.Sessions.Find(Guid.Parse(CurGuid));
+            var ssn = Context.Sessions.Find(int.Parse(Curint));
             ssn.SendSMS = sendSMS;
             ssn.Day = newDay;
             ssn.BeginTime = newTime;
@@ -116,73 +116,73 @@ namespace _2021_backend.Pages.Sessions
 
         public async Task<IActionResult> OnPostDeleteAsync(string id)
         {
-            CurSession = Context.Sessions.Find(Guid.Parse(CurGuid));
-            var guid = Guid.Parse(id);
+            CurSession = Context.Sessions.Find(int.Parse(Curint));
+            var idx = int.Parse(id);
             if (!string.IsNullOrEmpty(id))
             {
-                if (Context.Students.Any(it => it.Guid == guid))
+                if (Context.Students.Any(it => it.Id == idx))
                 {
-                    Context.Students.Find(guid).InterviewTime = Guid.Empty;
-                    CurSession.Students.RemoveAll(it => it == guid);
+                    Context.Students.Find(idx).InterviewTime = 0;
+                    CurSession.Students.RemoveAll(it => it == idx);
                 }
                 Context.SaveChanges();
             }
-            return Construct(CurGuid);
+            return Construct(Curint);
         }
 
         public async Task<IActionResult> OnPostAddAsync()
         {
-            CurSession = Context.Sessions.Find(Guid.Parse(CurGuid));
-            var guid = Guid.Parse(addedStu);
+            CurSession = Context.Sessions.Find(int.Parse(Curint));
+            var idx = int.Parse(addedStu);
             if (!string.IsNullOrEmpty(addedStu))
             {
-                if (Context.Students.Any(it => it.Guid == guid))
+                if (Context.Students.Any(it => it.Id == idx))
                 {
-                    var stu = Context.Students.Find(guid);
-                    if(stu.InterviewTime != Guid.Empty)
+                    var stu = Context.Students.Find(idx);
+                    if(stu.InterviewTime != 0)
                     {
                         var oldtime = Context.Sessions.Find(stu.InterviewTime);
                         if(oldtime != null)
                         {
-                            oldtime.Students.RemoveAll(s => s == stu.Guid);
+                            oldtime.Students.RemoveAll(s => s == stu.Id);
                             Context.SaveChanges();
                         }
                     }
-                    stu.InterviewTime = CurSession.Guid;
+                    stu.InterviewTime = CurSession.Id;
                     stu.Status = status.已选时间;
-                    CurSession.Students.Add(guid);
+                    CurSession.Students.Add(idx);
                 }
                 Context.SaveChanges();
             }
-            return Construct(CurGuid);
+            return Construct(Curint);
         }
 
         public async Task<IActionResult> OnPostAddChiefAsync()
         {
-            CurSession = Context.Sessions.Find(Guid.Parse(CurGuid));
-            if (Context.Users.Any(it => it.Guid == addedChief))
+            CurSession = Context.Sessions.Find(int.Parse(Curint));
+            if (Context.Users.Any(it => it.Id == addedChief))
             {
                 CurSession.Chiefs.Add(addedChief);
             }
             Context.SaveChanges();
-            return Construct(CurGuid);
+            return Construct(Curint);
         }
 
         public async Task<IActionResult> OnPostDeleteChiefAsync(string id)
         {
-            var guid = Guid.Parse(id);
-            CurSession = Context.Sessions.Find(Guid.Parse(CurGuid));
-            if (CurSession.Chiefs.Contains(guid))
+            var idx = int.Parse(id);
+            CurSession = Context.Sessions.Find(int.Parse(Curint));
+            if (CurSession.Chiefs.Contains(idx))
             {
-                CurSession.Chiefs.Remove(guid);
+                CurSession.Chiefs.Remove(idx);
             }
             Context.SaveChanges();
-            return Construct(CurGuid);
+            return Construct(Curint);
         }
 
-        private bool InterviewTimeExists(Guid id)
+        private bool InterviewTimeExists(int id)
         {
-            return Context.Sessions.Any(e => e.Guid == id);
+            return Context.Sessions.Any(e => e.Id == id);
         }
     }
 }

Pages/Sessions/Index.cshtml

@@ -157,9 +157,9 @@
                     }
                 </td>
                 <td>
-                    <a asp-page="./Edit" asp-route-id="@item.Guid">编辑</a> |
-                    <a asp-page="./Delete" asp-route-id="@item.Guid">删除</a> |
-                    <a asp-page-handler="Reset" asp-route-id="@item.Guid">重置</a>
+                    <a asp-page="./Edit" asp-route-id="@item.Id">编辑</a> |
+                    <a asp-page="./Delete" asp-route-id="@item.Id">删除</a> |
+                    <a asp-page-handler="Reset" asp-route-id="@item.Id">重置</a>
                 </td>
             </tr>
         }

Pages/Sessions/Index.cshtml.cs

@@ -8,6 +8,7 @@ using System.Linq;
 using System.Threading.Tasks;
 using System.Text.Json;
 using System.IO;
+using System.Security.Claims;
 
 namespace _2021_backend.Pages.Sessions
 {
@@ -89,16 +90,16 @@ namespace _2021_backend.Pages.Sessions
             return Construct(errmsg);
         }
 
-        public async Task<IActionResult> OnGetResetAsync(Guid id)
+        public async Task<IActionResult> OnGetResetAsync(int id)
         {
-            if(Context.Sessions.Any(it => it.Guid == id))
+            if(Context.Sessions.Any(it => it.Id == id))
             {
                 var s = Context.Sessions.Find(id);
                 foreach(var st in s.Students)
                 {
                     var e = Context.Students.Find(st);
                     e.Status = status.需调整时间;
-                    e.InterviewTime = Guid.Empty;
+                    e.InterviewTime = 0;
                 }
                 s.Students.Clear();
             }
@@ -124,15 +125,32 @@ namespace _2021_backend.Pages.Sessions
 
         public async Task<IActionResult> OnPostArrangeAsync()
         {
+            if (HttpContext.User.HasClaim((c) =>
+            {
+                return c.Type == ClaimTypes.Role&& (
+                c.Value == "admin" || c.Value == "manager");
+            })){
                 if (Utils.Arranger.Arrange(Context)) return Construct("");
                 else return Construct("排班失败，无法满足条件");
             }
+            else
+            {
+                return Construct("您无权进行此操作");
+            }
+        }
 
         public async Task<IActionResult> OnPostClearAllAsync()
+        {
+
+            if (HttpContext.User.HasClaim((c) =>
+            {
+                return c.Type == ClaimTypes.Role && (
+                c.Value == "admin" || c.Value == "manager");
+            }))
             {
                 foreach (var s in Context.Students)
                 {
-                s.InterviewTime = Guid.Empty;
+                    s.InterviewTime = 0;
                     s.Status = status.需调整时间;
                     s.Timelist.Clear();
                 }
@@ -144,17 +162,30 @@ namespace _2021_backend.Pages.Sessions
                 Context.SaveChanges();
                 return Construct("");
             }
+            else
+            {
+                return Construct("您无权进行此操作");
+            }
+        }
 
         public async Task<IActionResult> OnPostResetAllAsync()
         {
+            if (HttpContext.User.HasClaim((c) =>
+            {
+                return c.Type == ClaimTypes.Role && (
+                c.Value == "admin" || c.Value == "manager");
+            }))
+            {
+
+
                 var stus = Context.Students.ToList();
                 foreach (var s in stus)
                 {
                     if (s.Status == status.已选时间)
                     {
-                    s.InterviewTime = Guid.Empty;
-                    s.Timelist.RemoveAll(it => !Context.Sessions.Any(k => k.Guid == it));
-                    s.Timelist.Sort((Guid a, Guid b) =>
+                        s.InterviewTime = 0;
+                        s.Timelist.RemoveAll(it => !Context.Sessions.Any(k => k.Id == it));
+                        s.Timelist.Sort((int a, int b) =>
                         {
                             var x = Context.Sessions.Find(a);
                             var y = Context.Sessions.Find(b);
@@ -173,8 +204,19 @@ namespace _2021_backend.Pages.Sessions
                 Context.SaveChanges();
                 return Construct("");
             }
+            else
+            {
+                return Construct("您无权进行此操作");
+            }
+        }
 
         public async Task<IActionResult> OnPostSaveAsync()
+        {
+            if (HttpContext.User.HasClaim((c) =>
+            {
+                return c.Type == ClaimTypes.Role && (
+                c.Value == "admin" || c.Value == "manager");
+            }))
             {
                 var lst = Context.Sessions.ToList();
                 var str = JsonSerializer.Serialize(lst);
@@ -183,7 +225,18 @@ namespace _2021_backend.Pages.Sessions
                 System.IO.File.WriteAllText($"./saves/{DateTime.Now.ToString("MM-dd-hh-mm-ss")}.txt", str);
                 return Construct("");
             }
+            else
+            {
+                return Construct("您无权进行此操作");
+            }
+        }  
         public async Task<IActionResult> OnPostTidyAsync()
+        {
+            if (HttpContext.User.HasClaim((c) =>
+            {
+                return c.Type == ClaimTypes.Role && (
+                c.Value == "admin" || c.Value == "manager");
+            }))
             {
                 var stus = Context.Students.ToList();
                 var sess = Context.Sessions.ToList();
@@ -193,7 +246,7 @@ namespace _2021_backend.Pages.Sessions
                     var ntm = new List<Session>();
                     foreach (var j in tm)
                     {
-                    var k = sess.Find(it => it.Guid == j);
+                        var k = sess.Find(it => it.Id == j);
                         ntm.Add(k);
                     }
                     ntm.Sort((Session a, Session b) =>
@@ -202,17 +255,17 @@ namespace _2021_backend.Pages.Sessions
                         var y = a.BeginTime.CompareTo(b.BeginTime);
                         return x != 0 ? x : y;
                     });
-                List<Guid> nl = new List<Guid>();
+                    List<int> nl = new List<int>();
                     foreach (var j in ntm)
                     {
                         if (i.Status != status.不通过 && i.Status != status.通过 && i.Status != status.已确认时间)
                         {
-                        if (j.Day.Date.Add(j.BeginTime.TimeOfDay).CompareTo(DateTime.Now) < 0 || (j.Students.Count >= j.Capacity && !j.Students.Any(k => k ==i.Guid) )) continue;
-                        nl.Add(j.Guid);
+                            if (j.Day.Date.Add(j.BeginTime.TimeOfDay).CompareTo(DateTime.Now) < 0 || (j.Students.Count >= j.Capacity && !j.Students.Any(k => k == i.Id))) continue;
+                            nl.Add(j.Id);
                         }
                         else
                         {
-                        nl.Add(j.Guid);
+                            nl.Add(j.Id);
                         }
 
                     }
@@ -221,9 +274,20 @@ namespace _2021_backend.Pages.Sessions
                 Context.SaveChanges();
                 return Construct("");
             }
+            else
+            {
+                return Construct("您无权进行此操作");
+            }
+        }
 
 
         public async Task<IActionResult> OnPostLoadAsync()
+        {
+            if (HttpContext.User.HasClaim((c) =>
+            {
+                return c.Type == ClaimTypes.Role && (
+                c.Value == "admin" || c.Value == "manager");
+            }))
             {
                 var str = "";
 
@@ -236,9 +300,9 @@ namespace _2021_backend.Pages.Sessions
                 {
                     if (s.Status == status.已选时间)
                     {
-                    s.InterviewTime = Guid.Empty;
-                    s.Timelist.RemoveAll(it => !Context.Sessions.Any(k => k.Guid == it));
-                    s.Timelist.Sort((Guid a, Guid b) =>
+                        s.InterviewTime = 0;
+                        s.Timelist.RemoveAll(it => !Context.Sessions.Any(k => k.Id == it));
+                        s.Timelist.Sort((int a, int b) =>
                         {
                             var x = Context.Sessions.Find(a);
                             var y = Context.Sessions.Find(b);
@@ -256,7 +320,7 @@ namespace _2021_backend.Pages.Sessions
                 Context.SaveChanges();
                 foreach (var item in loads)
                 {
-                Session s = Context.Sessions.Find(item.Guid);  
+                    Session s = Context.Sessions.Find(item.Id);
                     if (s != null)
                     {
                         s.BeginTime = item.BeginTime;
@@ -264,12 +328,12 @@ namespace _2021_backend.Pages.Sessions
                         s.Capacity = item.Capacity;
                         s.SendSMS = item.SendSMS;
                         s.Chiefs = item.Chiefs;
-                    s.Students = new List<Guid>();
+                        s.Students = new List<int>();
                         foreach (var s2 in item.Students)
                         {
-                        if (Context.Students.Any(k => k.Guid == s2))
+                            if (Context.Students.Any(k => k.Id == s2))
                             {
-                            Context.Students.Find(s2).InterviewTime = item.Guid;
+                                Context.Students.Find(s2).InterviewTime = item.Id;
                                 s.Students.Add(s2);
                             }
                         }
@@ -278,6 +342,11 @@ namespace _2021_backend.Pages.Sessions
                 Context.SaveChanges();
                 return Construct("");
             }
+            else
+            {
+                return Construct("您无权进行此操作");
+            }
+        }
     }
 }
 

Pages/Students/Delete.cshtml

@@ -75,7 +75,7 @@
     </dl>
     
     <form method="post">
-        <input type="hidden" asp-for="Student.Guid" />
+        <input type="hidden" asp-for="Student.Id" />
         <input type="submit" value="删除" class="btn btn-danger" /> |
         <a asp-page="./Index">返回列表</a>
     </form>

Pages/Students/Delete.cshtml.cs

@@ -28,9 +28,9 @@ namespace _2021_backend.Pages.Students
             {
                 return NotFound();
             }
-            Guid id = Guid.Parse(idstr);
+            int id = int.Parse(idstr);
 
-            Student = await Context.Students.FirstOrDefaultAsync(m => m.Guid == id);
+            Student = await Context.Students.FirstOrDefaultAsync(m => m.Id == id);
 
             if (Student == null)
             {
@@ -45,7 +45,7 @@ namespace _2021_backend.Pages.Students
             {
                 return NotFound();
             }
-            Guid id = Guid.Parse(idstr);
+            int id = int.Parse(idstr);
 
             Student = await Context.Students.FindAsync(id);
 

Pages/Students/Details.cshtml

@@ -70,7 +70,7 @@
 
 <h5>此人的最终得分 ： @Html.DisplayFor(model => model.Student.Score)</h5>
 <form method="post" class="form-inline m-2">
-    <input type="hidden" asp-for="Student.Guid" />
+    <input type="hidden" asp-for="Student.Id" />
     <div class="mb-2">
         操作
     </div>
@@ -83,8 +83,34 @@
     <div class="mb-2">
         给他打分
         <input asp-for="score" class="form-control" />
-        <input type="submit" value="打" class="btn btn-warning" style="margin:5px" asp-page-handler="Rank" />
+        <input type="submit" value="打分" class="btn btn-warning" style="margin:5px" asp-page-handler="Rank" />
     </div>
+    <div>
+    </div>
+
+    <div class="mb-2">
+        作品链接：
+        @{
+            if(Model.Student.Uploads == null)
+            {
+                <div>尚未提交作品</div>
+            }
+            else
+            {
+                var fd = Model.Context.FileDesc.Find(Model.Student.Uploads.Last());
+            if (fd == null)
+            {
+                <div>尚未提交作品</div>
+            }
+            else
+            {
+                <a href="https://@Html.DisplayFor(model => fd.Path)">点我</a>
+            }
+            }
+            
+        }
+    </div>
+
 </form>
 <br />
 
@@ -131,7 +157,7 @@
         <span asp-validation-for="NewComment" class="text-danger"></span>
     </div>
     <div class="form-group">
-        <input type="hidden" asp-for="Student.Guid" />
+        <input type="hidden" asp-for="Student.Id" />
         <input type="submit" value="→" class="btn btn-primary btn-sm" />
     </div>
 </form>
@@ -175,7 +201,7 @@
         {
             var it = Model.Student.Timelist[i];
             var dt = Model.Context.Sessions.Find(it);
-            if (dt.Capacity > dt.Students.Count || dt.Students.Contains(Model.Student.Guid))
+            if (dt.Capacity > dt.Students.Count || dt.Students.Contains(Model.Student.Id))
             {
                 <tr>
                     <td>
@@ -211,9 +237,9 @@
                     </td>
                     <td>
                         <form method="post" class="form-inline">
-                            <input type="hidden" asp-for="Student.Guid" />
+                            <input type="hidden" asp-for="Student.Id" />
                             <a asp-page="/Sessions/Edit" asp-route-id="@it.ToString()" class="btn btn-sm btn-primary">场次详情</a>
-                            <input type="submit" asp-page-handler="Select" asp-route-stu="@Model.Student.Guid" asp-route-time="@it.ToString()" class="btn btn-sm btn-warning" value="选择这个" />
+                            <input type="submit" asp-page-handler="Select" asp-route-stu="@Model.Student.Id" asp-route-time="@it.ToString()" class="btn btn-sm btn-warning" value="选择这个" />
                         </form>
                     </td>
                 </tr>
@@ -225,7 +251,7 @@
     Ta的短信
 </h4>
 <form method="post">
-    <input type="hidden" asp-for="Student.Guid" />
+    <input type="hidden" asp-for="Student.Id" />
     <input type="submit" value="拉取5天内的回复短信" class="btn btn-primary" asp-page-handler="Pull" />
     <input type="submit" value="发送报名确认短信" class="btn btn-primary" asp-page-handler="Sign" />
     <input type="submit" value="发送活动场次确认短信" class="btn btn-primary" asp-page-handler="Time" />
@@ -355,8 +381,8 @@
                     @Html.DisplayFor(modelItem => sub.SubmitTime)
                 </td>
                 <td>
-                    <a asp-page="/Submissions/Edit" asp-route-strid="@sub.Guid">Edit</a> |
-                    <a asp-page="/Submissions/Details" asp-route-strid="@sub.Guid">Details</a>
+                    <a asp-page="/Submissions/Edit" asp-route-strid="@sub.Id">Edit</a> |
+                    <a asp-page="/Submissions/Details" asp-route-strid="@sub.Id">Details</a>
                 </td>
             </tr>
         }
@@ -366,6 +392,6 @@
 
 
 <div>
-    <a asp-page="./Edit" asp-route-idstr="@Model.Student.Guid">编辑信息</a> |
+    <a asp-page="./Edit" asp-route-idstr="@Model.Student.Id">编辑信息</a> |
     <a asp-page="./Index">返回列表</a>
 </div>

Pages/Students/Details.cshtml.cs

@@ -45,7 +45,7 @@ namespace _2021_backend.Pages.Students
             {
                 return NotFound();
             }
-            Guid id = Guid.Parse(idstr);
+            int id = int.Parse(idstr);
             Student = Context.Students.Find(id);
             if (Student == null)
             {
@@ -62,7 +62,7 @@ namespace _2021_backend.Pages.Students
                 Sessions.Add(tm);
             }
             Messages = Context.SMS.Where(it => it.Host == id).ToList();
-            CurComments = Context.Comments.Where(cmt => cmt.Student == Student.Guid).ToList();
+            CurComments = Context.Comments.Where(cmt => cmt.Student == Student.Id).ToList();
             Sessions.Sort((Session a, Session b) => {
                 var x = a.Day.CompareTo(b.Day);
                 var y = a.BeginTime.CompareTo(b.BeginTime);
@@ -84,60 +84,60 @@ namespace _2021_backend.Pages.Students
             if (!string.IsNullOrWhiteSpace(NewComment))
             {
                 var cmt = new Comment();
-                cmt.Student = Student.Guid;
+                cmt.Student = Student.Id;
                 cmt.Content = NewComment;
-                cmt.Operator = Guid.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value);
-                var stu = Context.Students.Find(Student.Guid);
-                stu.Comments.Add(cmt.Guid);
+                cmt.Operator = int.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value);
+                var stu = Context.Students.Find(Student.Id);
+                stu.Comments.Add(cmt.Id);
                 Context.Comments.Add(cmt);
                 Context.SaveChanges();
             }
-            Construct(Student.Guid.ToString());
-            return RedirectToPage(new { idstr = Student.Guid.ToString() });
+            Construct(Student.Id.ToString());
+            return RedirectToPage(new { idstr = Student.Id.ToString() });
         }
 
         public async Task<IActionResult> OnPostAcceptAsync()
         {
-            Student = Context.Students.Find(Student.Guid);
+            Student = Context.Students.Find(Student.Id);
             Student.Status = status.通过;
             Context.SaveChanges();
-            CurComments = Context.Comments.Where(cmt => cmt.Student == Student.Guid).ToList();
-            Messages = Context.SMS.Where(it => it.Host == Student.Guid).ToList();
-            Construct(Student.Guid.ToString());
-            return RedirectToPage(new { idstr = Student.Guid.ToString() });
+            CurComments = Context.Comments.Where(cmt => cmt.Student == Student.Id).ToList();
+            Messages = Context.SMS.Where(it => it.Host == Student.Id).ToList();
+            Construct(Student.Id.ToString());
+            return RedirectToPage(new { idstr = Student.Id.ToString() });
         }
 
       
 
         public async Task<IActionResult> OnPostRejectAsync()
         {
-            Student = Context.Students.Find(Student.Guid);
+            Student = Context.Students.Find(Student.Id);
             Student.Status = status.不通过;
             Context.SaveChanges();
             Student.Score = 0;
-            CurComments = Context.Comments.Where(cmt => cmt.Student == Student.Guid).ToList();
-            Messages = Context.SMS.Where(it => it.Host == Student.Guid).ToList();
-            Construct(Student.Guid.ToString());
-            return RedirectToPage(new { idstr = Student.Guid.ToString() });
+            CurComments = Context.Comments.Where(cmt => cmt.Student == Student.Id).ToList();
+            Messages = Context.SMS.Where(it => it.Host == Student.Id).ToList();
+            Construct(Student.Id.ToString());
+            return RedirectToPage(new { idstr = Student.Id.ToString() });
         }
 
-        public async Task<IActionResult> OnPostSelectAsync(Guid stu, Guid time)
+        public async Task<IActionResult> OnPostSelectAsync(int stu, int time)
         {
             var st = Context.Students.Find(stu);
             if (st != null)
             {
                 
-                if (Context.Sessions.Any(it => it.Guid == time))
+                if (Context.Sessions.Any(it => it.Id == time))
                 {
                     var tm = Context.Sessions.Find(time);
                     if (tm.Students.Count < tm.Capacity)
                     {
-                        if (st.InterviewTime != Guid.Empty)
+                        if (st.InterviewTime != 0)
                         {
                             var tmold = Context.Sessions.Find(st.InterviewTime);
                             if (tmold != null)
                             {
-                                tmold.Students.RemoveAll(it => it == st.Guid);
+                                tmold.Students.RemoveAll(it => it == st.Id);
                                 Context.SaveChanges();
                             }
                         }
@@ -148,58 +148,58 @@ namespace _2021_backend.Pages.Students
                     }
                 }
             }
-            return Construct(Student.Guid.ToString());
+            return Construct(Student.Id.ToString());
         }
 
         public async Task<IActionResult> OnPostPullAsync()
         {
-            await Utils.TencentSMS.Pull(Context, Context.Students.Find(Student.Guid), true);
-            return Construct(Student.Guid.ToString());
+            await Utils.TencentSMS.Pull(Context, Context.Students.Find(Student.Id), true);
+            return Construct(Student.Id.ToString());
         }
 
         public async Task<IActionResult> OnPostRankAsync()
         {
-            var s = Context.Students.Find(Student.Guid);
+            var s = Context.Students.Find(Student.Id);
             s.Score = score;
             s.Status = status.已评分;
             Context.SaveChanges();
-            return Construct(Student.Guid.ToString());
+            return Construct(Student.Id.ToString());
         }
 
 
         public async Task<IActionResult> OnPostResultAsync()
         {
-            var stu = Context.Students.Find(Student.Guid);
+            var stu = Context.Students.Find(Student.Id);
             if (stu.Status == status.通过)
-                await Utils.TencentSMS.Send(Context, SMSType.Accept, stu, Context.Users.Find(Guid.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
+                await Utils.TencentSMS.Send(Context, SMSType.Accept, stu, Context.Users.Find(int.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
             else if (stu.Status == status.不通过)
-                await Utils.TencentSMS.Send(Context, SMSType.Reject, stu, Context.Users.Find(Guid.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
-            return Construct(Student.Guid.ToString());
+                await Utils.TencentSMS.Send(Context, SMSType.Reject, stu, Context.Users.Find(int.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
+            return Construct(Student.Id.ToString());
         }
 
         public async Task<IActionResult> OnPostSignAsync()
         {
-            var stu = Context.Students.Find(Student.Guid);
-            await Utils.TencentSMS.Send(Context, SMSType.Signed, stu, Context.Users.Find(Guid.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
-            return Construct(Student.Guid.ToString());
+            var stu = Context.Students.Find(Student.Id);
+            await Utils.TencentSMS.Send(Context, SMSType.Signed, stu, Context.Users.Find(int.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
+            return Construct(Student.Id.ToString());
         }
 
         public async Task<IActionResult> OnPostSelectTimeAsync()
         {
-            var stu = Context.Students.Find(Student.Guid);
-            await Utils.TencentSMS.Send(Context, SMSType.TimeSelect, stu, Context.Users.Find(Guid.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
+            var stu = Context.Students.Find(Student.Id);
+            await Utils.TencentSMS.Send(Context, SMSType.TimeSelect, stu, Context.Users.Find(int.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
             stu.Status = status.需调整时间;
             Context.SaveChanges();
-            return Construct(Student.Guid.ToString());
+            return Construct(Student.Id.ToString());
         }
 
         public async Task<IActionResult> OnPostTimeAsync()
         {
-            var stu = Context.Students.Find(Student.Guid);
-            await Utils.TencentSMS.Send(Context, SMSType.TimeSet, stu, Context.Users.Find(Guid.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
+            var stu = Context.Students.Find(Student.Id);
+            await Utils.TencentSMS.Send(Context, SMSType.TimeSet, stu, Context.Users.Find(int.Parse(User.Claims.FirstOrDefault(c => c.Type == ClaimTypes.Sid).Value)).Name);
             stu.Status = status.已确认时间;
             Context.SaveChanges();
-            return Construct(Student.Guid.ToString());
+            return Construct(Student.Id.ToString());
         }
     }
 }

Pages/Students/Edit.cshtml

@@ -13,7 +13,7 @@
     <div class="col-md-4">
         <form method="post">
             <div asp-validation-summary="ModelOnly" class="text-danger"></div>
-            <input type="hidden" asp-for="Student.Guid" />
+            <input type="hidden" asp-for="Student.Id" />
             <div class="form-group">
                 <label asp-for="Student.Name" class="control-label"></label>
                 <input asp-for="Student.Name" class="form-control" />

Pages/Students/Edit.cshtml.cs

@@ -26,8 +26,8 @@ namespace _2021_backend.Pages.Students
             {
                 return NotFound();
             }
-            Guid id = Guid.Parse(idstr);
-            Student = await Context.Students.AsNoTracking().FirstOrDefaultAsync(m => m.Guid == id);
+            int id = int.Parse(idstr);
+            Student = await Context.Students.AsNoTracking().FirstOrDefaultAsync(m => m.Id == id);
 
             if (Student == null)
             {
@@ -40,7 +40,7 @@ namespace _2021_backend.Pages.Students
         // For more details, see https://aka.ms/RazorPagesCRUD.
         public async Task<IActionResult> OnPostAsync()
         {
-            var stu = Context.Students.Find(Student.Guid);
+            var stu = Context.Students.Find(Student.Id);
             stu.Status = Student.Status;    
             stu.Email = Student.Email;  
             stu.Name = Student.Name;    
@@ -53,9 +53,9 @@ namespace _2021_backend.Pages.Students
             return RedirectToPage("./Index");
         }
 
-        private bool StudentExists(Guid id)
+        private bool StudentExists(int id)
         {
-            return Context.Students.Any(e => e.Guid == id);
+            return Context.Students.Any(e => e.Id == id);
         }
     }
 }

Pages/Students/Index.cshtml

@@ -105,10 +105,10 @@
                         }
                     </td>
                     <td>
-                        <a asp-page="./Details" asp-route-idstr="@item.Guid.ToString()"> @Html.DisplayFor(modelItem => item.Name)</a>
+                        <a asp-page="./Details" asp-route-idstr="@item.Id.ToString()"> @Html.DisplayFor(modelItem => item.Name)</a>
                     </td>
                     <td>
-                        <a asp-page="./Details" asp-route-idstr="@item.Guid.ToString()"> @Html.DisplayFor(modelItem => item.Stuid)</a>
+                        <a asp-page="./Details" asp-route-idstr="@item.Id.ToString()"> @Html.DisplayFor(modelItem => item.Stuid)</a>
                     </td>
                     <td>
                         @Html.DisplayFor(modelItem => item.Sex)
@@ -135,9 +135,9 @@
                         @Html.DisplayFor(modelItem => item.RegisterTime)
                     </th>
                     <td>
-                        <a asp-page="./Edit" asp-route-idstr="@item.Guid.ToString()">编辑资料</a> |
-                        <a asp-page="./Details" asp-route-idstr="@item.Guid.ToString()">审阅</a> |
-                        <a asp-page="./Delete" asp-route-idstr="@item.Guid.ToString()">删除</a>
+                        <a asp-page="./Edit" asp-route-idstr="@item.Id.ToString()">编辑资料</a> |
+                        <a asp-page="./Details" asp-route-idstr="@item.Id.ToString()">审阅</a> |
+                        <a asp-page="./Delete" asp-route-idstr="@item.Id.ToString()">删除</a>
                     </td>
                 </tr>
             }

Pages/Students/Index.cshtml.cs

@@ -8,6 +8,7 @@ using System.Collections.Generic;
 using System.Linq;
 using _2021_backend.Utils;
 using System.Threading.Tasks;
+using System.Security.Claims;
 
 namespace _2021_backend.Pages.Students
 {
@@ -95,6 +96,12 @@ namespace _2021_backend.Pages.Students
         }
 
         public async Task<IActionResult> OnPostFinalizeAsync(int? pageId, string errInfo)
+        {
+            if (HttpContext.User.HasClaim((c) =>
+            {
+                return c.Type == ClaimTypes.Role && (
+                c.Value == "admin" || c.Value == "manager");
+            }))
             {
                 if (pageId == null) pageId = 0;
 
@@ -106,8 +113,19 @@ namespace _2021_backend.Pages.Students
                 Context.SaveChanges();
                 return Construct((int)pageId, errInfo);
             }
+            else
+            {
+                return Construct(pageId??0, "您无权进行此操作");
+            }
+        }
 
         public async Task<IActionResult> OnPostReselectAllAsync(int? pageId,string errInfo)
+        {
+            if (HttpContext.User.HasClaim((c) =>
+            {
+                return c.Type == ClaimTypes.Role && (
+                c.Value == "admin" || c.Value == "manager");
+            }))
             {
                 if (pageId == null) pageId = 0;
                 foreach (var s in Context.Students)
@@ -117,5 +135,10 @@ namespace _2021_backend.Pages.Students
                 Context.SaveChanges();
                 return Construct((int)pageId, errInfo);
             }
+            else
+            {
+                return Construct(pageId ?? 0, "您无权进行此操作");
+            }
+        }
     }
 }

Pages/Submissions/Create.cshtml.cs

@@ -37,7 +37,7 @@ namespace _2021_backend.Pages.Submissions
             {
                 stu = Student.create(Submission);
                 stu.Status = status.刚报名;
-                var q2 = from e in Context.Sessions select e.Guid;
+                var q2 = from e in Context.Sessions select e.Id;
                 var lst = q2.ToList();
                 stu.Timelist = lst;
                 Context.Students.Add(stu);
@@ -47,7 +47,7 @@ namespace _2021_backend.Pages.Submissions
                 stu = q.FirstOrDefault();
                 stu.Update(Submission);
             }
-            Submission.Host = stu.Guid;
+            Submission.Host = stu.Id;
             Context.Submissions.Add(Submission);
             Context.SaveChanges();
 

Pages/Submissions/Delete.cshtml

@@ -69,8 +69,8 @@
     </dl>
     
     <form method="post">
-        <input type="hidden" asp-for="Submission.Guid" />
-        <input type="submit" value="删除" class="btn btn-danger" asp-route-id="@Model.Submission.Guid.ToString()"/> |
+        <input type="hidden" asp-for="Submission.Id" />
+        <input type="submit" value="删除" class="btn btn-danger" asp-route-id="@Model.Submission.Id.ToString()"/> |
         <a asp-page="./Index">返回列表</a>
     </form>
 </div>

Pages/Submissions/Delete.cshtml.cs

@@ -24,12 +24,12 @@ namespace _2021_backend.Pages.Submissions
 
         public async Task<IActionResult> OnGetAsync(string? strid)
         {
-            Guid id = Guid.Parse(strid);
+            int id = int.Parse(strid);
             if (id == null)
             {
                 return NotFound();
             }
-            Submission = Context.Submissions.FirstOrDefault(m => m.Guid == id);
+            Submission = Context.Submissions.FirstOrDefault(m => m.Id == id);
             
             if (Submission == null)
             {
@@ -38,7 +38,7 @@ namespace _2021_backend.Pages.Submissions
             return Page();
         }
 
-        public async Task<IActionResult> OnPostAsync(Guid? id)
+        public async Task<IActionResult> OnPostAsync(int? id)
         {
             if (id == null)
             {
@@ -51,7 +51,7 @@ namespace _2021_backend.Pages.Submissions
                 var stu = Context.Students.Find(Submission.Host);
                 if (stu != null)
                 {
-                    stu.Submissions.Remove(Submission.Guid);
+                    stu.Submissions.Remove(Submission.Id);
                 }   
                 Context.Submissions.Remove(Submission);
                 Context.SaveChanges();

Pages/Submissions/Details.cshtml

@@ -74,6 +74,6 @@
     </dl>
 </div>
 <div>
-    <a asp-page="./Edit" asp-route-id="@Model.Submission.Guid">Edit</a> |
+    <a asp-page="./Edit" asp-route-id="@Model.Submission.Id">Edit</a> |
     <a asp-page="./Index">返回列表</a>
 </div>

Pages/Submissions/Details.cshtml.cs

@@ -28,8 +28,8 @@ namespace _2021_backend.Pages.Submissions
             {
                 return NotFound();
             }
-            Guid id = Guid.Parse(strid);
-            Submission = await _context.Submissions.FirstOrDefaultAsync(m => m.Guid == id);
+            int id = int.Parse(strid);
+            Submission = await _context.Submissions.FirstOrDefaultAsync(m => m.Id == id);
 
             if (Submission == null)
             {

Pages/Submissions/Edit.cshtml

@@ -13,7 +13,7 @@
     <div class="col-md-4">
         <form method="post">
             <div asp-validation-summary="ModelOnly" class="text-danger"></div>
-            <input type="hidden" asp-for="Submission.Guid" />
+            <input type="hidden" asp-for="Submission.Id" />
             <div class="form-group">
                 <label asp-for="Submission.Name" class="control-label"></label>
                 <input asp-for="Submission.Name" class="form-control" />

Pages/Submissions/Edit.cshtml.cs

@@ -25,13 +25,13 @@ namespace _2021_backend.Pages.Submissions
 
         public async Task<IActionResult> OnGetAsync(string? strid)
         {
-            Guid id = Guid.Parse(strid);
+            int id = int.Parse(strid);
             if (id == null)
             {
                 return NotFound();
             }
 
-            Submission = await Context.Submissions.FirstOrDefaultAsync(m => m.Guid == id);
+            Submission = await Context.Submissions.FirstOrDefaultAsync(m => m.Id == id);
 
             if (Submission == null)
             {
@@ -57,7 +57,7 @@ namespace _2021_backend.Pages.Submissions
             }
             catch (DbUpdateConcurrencyException)
             {
-                if (!SubmissionExists(Submission.Guid))
+                if (!SubmissionExists(Submission.Id))
                 {
                     return NotFound();
                 }
@@ -70,9 +70,9 @@ namespace _2021_backend.Pages.Submissions
             return RedirectToPage("./Index");
         }
 
-        private bool SubmissionExists(Guid id)
+        private bool SubmissionExists(int id)
         {
-            return Context.Submissions.Any(e => e.Guid == id);
+            return Context.Submissions.Any(e => e.Id == id);
         }
     }
 }

Pages/Submissions/Index.cshtml

@@ -75,9 +75,9 @@
                     @Html.DisplayFor(modelItem => item.SubmitTime)
                 </td>
                 <td>
-                    <a asp-page="./Edit" asp-route-strid="@item.Guid.ToString()">编辑</a> |
-                    <a asp-page="./Details" asp-route-strid="@item.Guid.ToString()">详细信息</a> |
-                    <a asp-page="./Delete" asp-route-strid="@item.Guid.ToString()">删除</a>
+                    <a asp-page="./Edit" asp-route-strid="@item.Id.ToString()">编辑</a> |
+                    <a asp-page="./Details" asp-route-strid="@item.Id.ToString()">详细信息</a> |
+                    <a asp-page="./Delete" asp-route-strid="@item.Id.ToString()">删除</a>
                 </td>
             </tr>
         }

Pages/Users/Delete.cshtml

@@ -34,7 +34,7 @@
     </dl>
     
     <form method="post">
-        <input type="hidden" asp-for="User.Guid" />
+        <input type="hidden" asp-for="User.Id" />
         <input type="submit" value="Delete" class="btn btn-danger" /> |
         <a asp-page="./Index">Back to List</a>
     </form>

Pages/Users/Delete.cshtml.cs

@@ -24,13 +24,13 @@ namespace _2021_backend.Pages.Users
 
         public async Task<IActionResult> OnGetAsync(string id)
         {
-            Guid guid = Guid.Parse(id);
+            int idx = int.Parse(id);
             if (id == null)
             {
                 return NotFound();
             }
 
-            User = _context.Users.Find(guid);
+            User = _context.Users.Find(idx);
 
             if (User == null)
             {
@@ -41,13 +41,13 @@ namespace _2021_backend.Pages.Users
 
         public async Task<IActionResult> OnPostAsync(string id)
         {
-            Guid guid = Guid.Parse(id);
+            int idx = int.Parse(id);
             if (id == null)
             {
                 return NotFound();
             }
 
-            User = _context.Users.Find(id);
+            User = _context.Users.Find(idx);
 
             if (User != null)
             {

Pages/Users/Details.cshtml

@@ -38,6 +38,6 @@
     </dl>
 </div>
 <div>
-    <a asp-page="./Edit" asp-route-id="@Model.User.Guid">Edit</a> |
+    <a asp-page="./Edit" asp-route-id="@Model.User.Id">Edit</a> |
     <a asp-page="./Index">Back to List</a>
 </div>

Pages/Users/Details.cshtml.cs

@@ -23,13 +23,13 @@ namespace _2021_backend.Pages.Users
 
         public async Task<IActionResult> OnGetAsync(string id)
         {
-            Guid guid = Guid.Parse(id);
+            int idx = int.Parse(id);
             if (id == null)
             {
                 return NotFound();
             }
 
-            User = _context.Users.Find(guid);
+            User = _context.Users.Find(idx);
 
             if (User == null)
             {

Pages/Users/Edit.cshtml

@@ -13,7 +13,7 @@
     <div class="col-md-4">
         <form method="post">
             <div asp-validation-summary="ModelOnly" class="text-danger"></div>
-            <input type="hidden" asp-for="USER.Guid" />
+            <input type="hidden" asp-for="USER.Id" />
             <div class="form-group">
                 <label asp-for="USER.stuID" class="control-label"></label>
                 <input asp-for="USER.stuID" class="form-control" />

Pages/Users/Edit.cshtml.cs

@@ -31,8 +31,8 @@ namespace _2021_backend.Pages.Users
             {
                 return NotFound();
             }
-            Guid guid = Guid.Parse(id);
-            USER =  _context.Users.Find(guid);
+            int idx = int.Parse(id);
+            USER =  _context.Users.Find(idx);
 
             if (USER == null)
             {
@@ -52,12 +52,12 @@ namespace _2021_backend.Pages.Users
                 return Page();
             }
             if (await _context.Users.AsNoTracking().Where(u => u.stuID == USER.stuID).CountAsync() > 0
-                && (await _context.Users.AsNoTracking().Where(u => u.stuID == USER.stuID).FirstOrDefaultAsync()).Guid != USER.Guid
+                && (await _context.Users.AsNoTracking().Where(u => u.stuID == USER.stuID).FirstOrDefaultAsync()).Id != USER.Id
                 )
                 return new ConflictResult();
             if (USER.Secret == null || USER.Secret == String.Empty)
             {
-                var user = await _context.Users.AsNoTracking().Where(u => u.Guid == USER.Guid).FirstOrDefaultAsync();
+                var user = await _context.Users.AsNoTracking().Where(u => u.Id == USER.Id).FirstOrDefaultAsync();
                 user.Name = USER.Name;
                 user.stuID = USER.stuID;
                 user.isManager = USER.isManager;
@@ -65,7 +65,7 @@ namespace _2021_backend.Pages.Users
             }
             else
             {
-                var user = await _context.Users.AsNoTracking().Where(u => u.Guid == USER.Guid).FirstOrDefaultAsync();
+                var user = await _context.Users.AsNoTracking().Where(u => u.Id == USER.Id).FirstOrDefaultAsync();
                 user.Name = USER.Name;
                 user.stuID = USER.stuID;
                 user.isManager = USER.isManager;
@@ -80,7 +80,7 @@ namespace _2021_backend.Pages.Users
             }
             catch (DbUpdateConcurrencyException)
             {
-                if (!UserExists(USER.Guid))
+                if (!UserExists(USER.Id))
                 {
                     return NotFound();
                 }
@@ -93,9 +93,9 @@ namespace _2021_backend.Pages.Users
             return RedirectToPage("./Index");
         }
 
-        private bool UserExists(Guid id)
+        private bool UserExists(int id)
         {
-            return _context.Users.Any(e => e.Guid == id);
+            return _context.Users.Any(e => e.Id == id);
         }
     }
 }

Pages/Users/Index.cshtml

@@ -40,9 +40,9 @@
                 @Html.DisplayFor(modelItem => item.isManager)
             </td>
             <td>
-                <a asp-page="./Edit" asp-route-id="@item.Guid">Edit</a> |
-                <a asp-page="./Details" asp-route-id="@item.Guid">Details</a> |
-                <a asp-page="./Delete" asp-route-id="@item.Guid">Delete</a>
+                <a asp-page="./Edit" asp-route-id="@item.Id">Edit</a> |
+                <a asp-page="./Details" asp-route-id="@item.Id">Details</a> |
+                <a asp-page="./Delete" asp-route-id="@item.Id">Delete</a>
             </td>
         </tr>
 }

Program.cs

@@ -14,8 +14,11 @@ namespace _2021_backend
 {
     public class Program
     {
+
         public static void Main(string[] args)
         {
+            AppContext.SetSwitch("Npgsql.EnableLegacyTimestampBehavior", true);
+
             var host = CreateHostBuilder(args).Build();
             using (var scope = host.Services.CreateScope())
             {
@@ -26,14 +29,14 @@ namespace _2021_backend
                     context.Database.Migrate();
                     Console.WriteLine("Migration succeeded.");
                     var config = host.Services.GetRequiredService<IConfiguration>();
-                    TencentSMS.Init(config["TENCENT_ID"], config["TENCENT_KEY"], config["SMS_APPID"], config["SMS_ID_ACCEPT"], config["SMS_ID_REJECT"], config["SMS_ID_TIMESET"], config["SMS_ID_SUBMITTED"], config["SMS_ID_TIMESELECT"]);
+                    TencentSMS.Init(config["TENCENT_ID"], config["TENCENT_KEY"], config["SMS_APPID"], config["SMS_ID_ACCEPT"], config["SMS_ID_REJECT"], config["SMS_ID_TIMESET"], config["SMS_ID_SUBMITTED"], config["SMS_ID_TIMESELECT"], config["SMS_ID_CAPTCHA"]);
                     var botname = config["SMSBOT_NAME"];
                     var q = context.Users.Where(it => it.Name == botname);
                     if (q.Count() == 0)
                     {
                         var botusr = new User();
                         botusr.Name = botname;
-                        botusr.Guid = Guid.NewGuid();
+                        botusr.Id = 0;
                         botusr.isManager = true;
                         botusr.Secret = config["SMSBOT_SECRET"];
                         botusr.stuID = config["SMSBOT_STUID"];
@@ -45,19 +48,18 @@ namespace _2021_backend
                         User.Bot = q.FirstOrDefault();
                         //do nothing cause I 've already got a bot 
                     }
-                    var id = Guid.Parse("4c20c535-3661-40c7-b4db-ce479675bbd7");
-                    while (context.Users.Any(e => e.Guid == id))
+                    var name = config["ADMIN_USERNAME"];
+                    while (context.Users.Any(e => e.stuID == name))
                     {
-                        context.Users.Remove(context.Users.Find(id));
+                        context.Users.Remove(context.Users.FirstOrDefault(e => e.stuID == name));
                         context.SaveChanges();
                     }
                     var usr = new User();
-                    usr.Guid = id;
                     usr.Name = config["ADMIN_USERNAME"];
                     usr.isManager = true;
                     usr.Secret = EvaCryptoHelper.Password2Secret(config["ADMIN_PASSWORD"]);
                     usr.stuID = "zjueva";
-                    Console.WriteLine(usr.Guid.ToString());
+                    Console.WriteLine(usr.Id.ToString());
                     context.Users.Add(usr);
                     context.SaveChanges();
                 }

Startup.cs

@@ -9,6 +9,7 @@ using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
 using System.Security.Claims;
 
+
 namespace _2021_backend
 {
     public class Startup

Utils/Arranger.cs

@@ -24,12 +24,12 @@ namespace _2021_backend.Utils
                 var capb = 0;
                 foreach (var tm in a.Timelist)
                 {
-                    var t = sessions.Find(x => x.Guid == tm);
+                    var t = sessions.Find(x => x.Id == tm);
                     capa += t.Capacity - t.Students.Count;
                 }
                 foreach (var tm in b.Timelist)
                 {
-                    var t = sessions.Find(x => x.Guid == tm);
+                    var t = sessions.Find(x => x.Id == tm);
                     capb += t.Capacity - t.Students.Count;
                 }
                 return capa - capb;
@@ -43,7 +43,7 @@ namespace _2021_backend.Utils
                 var tmstr = "";
                 foreach (var tm in st.Timelist)
                 {
-                    var t = sessions.Find(x => x.Guid == tm);
+                    var t = sessions.Find(x => x.Id == tm);
                     cap += t.Capacity - t.Students.Count;
                     tmstr += t.Day.ToString("dd") + "-" + t.BeginTime.ToString("HH:mm-") + t.Place + "   ";
                 }
@@ -61,7 +61,7 @@ namespace _2021_backend.Utils
             var lst = students[m].Timelist;
             var stu = students[m];
             
-            if (stu.Timelist.Contains(stu.InterviewTime) || stu.Timelist.Count() == 0 || stu.InterviewTime != Guid.Empty || stu.Status != status.已选时间)
+            if (stu.Timelist.Contains(stu.InterviewTime) || stu.Timelist.Count() == 0 || stu.InterviewTime != 0 || stu.Status != status.已选时间)
             {
 
                 return m >= students.Count - 1 ? true : DFS(m + 1);
@@ -71,21 +71,21 @@ namespace _2021_backend.Utils
                 var tm = Context.Sessions.Find(stu.InterviewTime);
                 if (tm != null)
                 {
-                    tm.Students.RemoveAll(it => it == stu.Guid);
+                    tm.Students.RemoveAll(it => it == stu.Id);
                 }
-                stu.InterviewTime = Guid.Empty;
+                stu.InterviewTime = 0;
             }
             bool depth = false;
             foreach (var i in lst)
             {
-                var tm = sessions.Find(s => s.Guid == i);
+                var tm = sessions.Find(s => s.Id == i);
                 if (tm.Students.Count < tm.Capacity && tm.Day.CompareTo(DateTime.Now.AddHours(-14)) > 0)
                 {
                     status prev = students[m].Status;
-                    Guid prevs = students[m].InterviewTime;
+                    int prevs = students[m].InterviewTime;
                     students[m].Status = status.已选时间;
-                    students[m].InterviewTime = tm.Guid;
-                    tm.Students.Add(students[m].Guid);
+                    students[m].InterviewTime = tm.Id;
+                    tm.Students.Add(students[m].Id);
                     if (m == students.Count - 1)
                     {
                         return true;
@@ -97,7 +97,7 @@ namespace _2021_backend.Utils
                         {
                             students[m].Status = prev;
                             students[m].InterviewTime = prevs;
-                            tm.Students.Remove(students[m].Guid);
+                            tm.Students.Remove(students[m].Id);
                             continue;
                         }
                         else return true;

Utils/CipherHelper.cs

@@ -0,0 +1,92 @@
+using System;
+using System.IO;
+using System.Security.Cryptography;
+
+namespace _2021_backend.Utils
+{
+    public static class CipherHelper
+    {
+        static byte[] EncryptStringToBytes_Aes(string plainText, byte[] Key, byte[] IV)
+        {
+            // Check arguments.
+            if (plainText == null || plainText.Length <= 0)
+                throw new ArgumentNullException("plainText");
+            if (Key == null || Key.Length <= 0)
+                throw new ArgumentNullException("Key");
+            if (IV == null || IV.Length <= 0)
+                throw new ArgumentNullException("IV");
+            byte[] encrypted;
+
+            // Create an Aes object
+            // with the specified key and IV.
+            using (Aes aesAlg = Aes.Create())
+            {
+                aesAlg.Key = Key;
+                aesAlg.IV = IV;
+
+                // Create an encryptor to perform the stream transform.
+                ICryptoTransform encryptor = aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV);
+
+                // Create the streams used for encryption.
+                using (MemoryStream msEncrypt = new MemoryStream())
+                {
+                    using (CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write))
+                    {
+                        using (StreamWriter swEncrypt = new StreamWriter(csEncrypt))
+                        {
+                            //Write all data to the stream.
+                            swEncrypt.Write(plainText);
+                        }
+                        encrypted = msEncrypt.ToArray();
+                    }
+                }
+            }
+
+            // Return the encrypted bytes from the memory stream.
+            return encrypted;
+        }
+
+        static string DecryptStringFromBytes_Aes(byte[] cipherText, byte[] Key, byte[] IV)
+        {
+            // Check arguments.
+            if (cipherText == null || cipherText.Length <= 0)
+                throw new ArgumentNullException("cipherText");
+            if (Key == null || Key.Length <= 0)
+                throw new ArgumentNullException("Key");
+            if (IV == null || IV.Length <= 0)
+                throw new ArgumentNullException("IV");
+
+            // Declare the string used to hold
+            // the decrypted text.
+            string plaintext = null;
+
+            // Create an Aes object
+            // with the specified key and IV.
+            using (Aes aesAlg = Aes.Create())
+            {
+                aesAlg.Key = Key;
+                aesAlg.IV = IV;
+
+                // Create a decryptor to perform the stream transform.
+                ICryptoTransform decryptor = aesAlg.CreateDecryptor(aesAlg.Key, aesAlg.IV);
+
+                // Create the streams used for decryption.
+                using (MemoryStream msDecrypt = new MemoryStream(cipherText))
+                {
+                    using (CryptoStream csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read))
+                    {
+                        using (StreamReader srDecrypt = new StreamReader(csDecrypt))
+                        {
+
+                            // Read the decrypted bytes from the decrypting stream
+                            // and place them in a string.
+                            plaintext = srDecrypt.ReadToEnd();
+                        }
+                    }
+                }
+            }
+
+            return plaintext;
+        }
+    }
+}

Utils/TencentSMS.cs

@@ -9,6 +9,7 @@ using TencentCloud.Common;
 using TencentCloud.Common.Profile;
 using TencentCloud.Sms.V20210111;
 using TencentCloud.Sms.V20210111.Models;
+using System.Security.Cryptography;
 
 namespace _2021_backend.Utils
 {
@@ -21,12 +22,13 @@ namespace _2021_backend.Utils
         public static string SMSID_reject { get; set; }
         public static string SMSID_timeSet { get; set; }
         public static string SMSID_signed { get; set; }
+        public static string SMSID_captcha { get; set; }
 
         private static bool Initialized = false;
 
         private static string SMSID_timeSelect { get; set; }
 
-        public static void Init(string tencentid, string tencentKey, string appid, string ID_accept, string ID_reject, string ID_timeSet, string ID_submitted, string ID_timeSelect)
+        public static void Init(string tencentid, string tencentKey, string appid, string ID_accept, string ID_reject, string ID_timeSet, string ID_submitted, string ID_timeSelect,string ID_captcha)
         {
             Tencent_id = tencentid;
             Tencent_key = tencentKey;
@@ -36,6 +38,7 @@ namespace _2021_backend.Utils
             SMSID_timeSet = ID_timeSet;
             SMSID_signed = ID_submitted;
             SMSID_timeSelect = ID_timeSelect;
+            SMSID_captcha = ID_captcha;
             Initialized = true;
         }
         public static async Task<bool> Pull(BackendContext Context, Student stu, bool fullPull)
@@ -80,9 +83,9 @@ namespace _2021_backend.Utils
                 var lst = obj.PullSmsReplyStatusSet;
                 foreach (var item in lst)
                 {
-                    var msg = new SMS(item, stu.Guid);
+                    var msg = new SMS(item, stu.Id);
                     Context.Add<SMS>(msg);
-                    stu.Messages.Add(msg.Guid);
+                    stu.Messages.Add(msg.Id);
                 }
                 Context.SaveChanges();
                 return true;
@@ -114,7 +117,7 @@ namespace _2021_backend.Utils
                 req.PhoneNumberSet[0] = "+86" + stu.Tel;
                 req.SmsSdkAppId = SMS_appid;
                 req.SignName = "ZJUEVA";
-                Guid index = stu.InterviewTime;
+                int index = stu.InterviewTime;
                 SMS sms = new SMS();
                 switch (type)
                 {
@@ -135,7 +138,7 @@ namespace _2021_backend.Utils
                         break;
                     case SMSType.TimeSet:
                         sms.Type = SMSType.TimeSet;
-                        var q = from e in Context.Sessions where e.Guid == index select e;
+                        var q = from e in Context.Sessions where e.Id == index select e;
                         var time = await q.FirstOrDefaultAsync();
                         req.TemplateParamSet = new string[] { stu.Name, time.Day.ToString("dd") ,time.BeginTime.ToString("HH"),time.BeginTime.ToString("mm"), time.BeginTime.AddHours(1).ToString("HH") ,time.BeginTime.AddMinutes(30).ToString("mm")};
                         req.TemplateId = SMSID_timeSet;
@@ -145,9 +148,21 @@ namespace _2021_backend.Utils
                         req.TemplateParamSet = new string[] { stu.Name };
                         req.TemplateId = SMSID_signed;
                         break;
+                    case SMSType.Captcha:
+                        sms.Type = SMSType.Captcha;
+                        var captchaBytes = new byte[]{0,0,0,0,0,0};
+                        RNGCryptoServiceProvider csp = new RNGCryptoServiceProvider();
+                        csp.GetBytes(captchaBytes);
+                        for (int i = 0; i < 6; i++) captchaBytes[i] %= 10;
+                        string captcha = $"{captchaBytes[0]}{captchaBytes[1]}{captchaBytes[2]}{captchaBytes[3]}{captchaBytes[4]}{captchaBytes[5]}";
+                        stu.LastCaptcha = captcha;
+                        stu.LastCaptchaTime = DateTime.Now;
+                        req.TemplateParamSet = new string[] { captcha };
+                        req.TemplateId = SMSID_captcha;
+                        break;
                 }
                 sms.Tel = stu.Tel;
-                sms.Host = stu.Guid;
+                sms.Host = stu.Id;
                 var query = from e in Context.Users where e.stuID == sender select e;
                 var usr = await query.FirstOrDefaultAsync();
                 sms.Sender = usr == null ? "null" : usr.Name;

appsettings.json

@@ -15,6 +15,7 @@
   "SMS_ID_SUBMITTED": "1163892",
   "SMS_ID_TIMESET": "1232109",
   "SMS_ID_TIMESELECT": "1232577",
+  "SMS_ID_CAPTCHA": "1312236",
   "TENCENT_ID": "AKIDYv5JGwKSJtCE0VjhOpyqSotgDTSaYIsF",
   "TENCENT_KEY": "mPzSimdGenpdCWcT5TcWBboreAQQ9bmh",
   "SMSBOT_NAME": "msgbot",