150 lines
4.1 KiB
C#
150 lines
4.1 KiB
C#
using System.Net;
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using System.Net.Mail;
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using System.Security.Cryptography;
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using System.Text;
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using System.Text.Json;
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using Backend.Model;
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using Backend.Utils;
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using Flurl.Http;
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using InnovEnergy.Lib.Utils;
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using Microsoft.AspNetCore.DataProtection;
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using SQLite;
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#pragma warning disable CS0472
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#pragma warning disable CS8602
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namespace Backend.Database;
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public partial class Db
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{
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private TableQuery<User> Users => _Db.Table<User>();
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public Int32 NbUsers => Users.Count();
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public User? GetUserById(Int64 id)
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{
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return Users.FirstOrDefault(u => u.Id == id);
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}
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public Boolean IsParentOfChild(User parent, User child)
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{
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var parentPointer = child.ParentId;
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if (parent.Id == child.Id)
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return true;
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while (parentPointer != null && parentPointer != parent.Id)
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{
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parentPointer = GetUserById(parentPointer).ParentId;
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}
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return parentPointer == parent.Id;
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}
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public User? GetUserByEmail(String email) => Users.FirstOrDefault(u => u.Email == email);
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public Result CreateUser(User user)
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{
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if (GetUserByEmail(user.Email) is not null)
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return Result.Error("User with that email already exists");
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//Salting and Hashing password
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var salt = Crypto.GenerateSalt();
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var hashedPassword = Crypto.ComputeHash(Encoding.UTF8.GetBytes(user.Password),
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Encoding.UTF8.GetBytes(salt + "innovEnergy"));
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user.Salt = salt;
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user.Password = hashedPassword;
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return Create(user);
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}
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public Object CreateAndSaveUserS3ApiKey(User user)
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{
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//EXOSCALE API URL
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const String url = "https://api-ch-dk-2.exoscale.com/v2/access-key";
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const String secret = "S2K1okphiCSNK4mzqr4swguFzngWAMb1OoSlZsJa9F0";
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const String apiKey = "EXOb98ec9008e3ec16e19d7b593";
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var payload = new
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{ name = user.Email,
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operations = new List<String> {"getObject", "listBucket"},
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content = new List<Object>{}};
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var installationIdList = User2Installation
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.Where(i => i.UserId == user.Id)
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.SelectMany(i => Installations.Where(f => i.InstallationId == f.Id))
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.ToList();
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foreach (var installation in installationIdList)
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{
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payload.content.Add(new {domain = "sos", resource_type = "bucket", resource_name = installation.Name}); //TODO CHANGE NAME TO S3BUCKET
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}
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using var hmacSha1 = new HMACSHA1(Encoding.UTF8.GetBytes(secret));
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var signature = Encoding.UTF8
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.GetBytes(payload.ToString())
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.Apply(hmacSha1.ComputeHash)
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.Apply(Convert.ToBase64String);
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var keyJson = url
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.WithHeader("Authorization", $"POST {apiKey};{signature}")
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.PostJsonAsync(payload)
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.ReceiveJson()
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.Result;
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return SetUserS3ApiKey(user, keyJson.GetValue("key"));
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}
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public Result SetUserS3ApiKey(User user,String key)
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{
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user.S3Key = key;
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return Update(user);
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}
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public Result UpdateUser(User user)
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{
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var oldUser = GetUserById(user.Id);
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if (oldUser == null)
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return Result.Error("User doesn't exist");
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//Checking for unchangeable things
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// TODO: depends on privileges of caller
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user.Id = oldUser.Id;
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user.ParentId = oldUser.ParentId;
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user.Email = oldUser.Email;
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return Update(user);
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}
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public Result DeleteUser(User user)
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{
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User2Folder .Delete(u => u.UserId == user.Id);
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User2Installation.Delete(u => u.UserId == user.Id);
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//Todo check for orphaned Installations/Folders
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// GetChildUsers()
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return Delete(user);
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}
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// TODO
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private static Boolean IsValidEmail(String email)
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{
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try
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{
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var emailAddress = new MailAddress(email);
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}
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catch
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{
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return false;
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}
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return true;
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}
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}
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