Move hid generation to the database. Closes #157.

This commit is contained in:
Ske
2020-06-13 00:43:48 +02:00
parent c39c51426f
commit 8ac2f1e4b8
5 changed files with 36 additions and 43 deletions

View File

@@ -2,6 +2,7 @@
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Data;
using System.Linq;
using System.Threading.Tasks;
@@ -69,7 +70,7 @@ namespace PluralKit.Core
// if not, roll a new hid and we'll insert one with that
// (we can't trust the hid given in the member, it might let us overwrite another system's members)
var existingMember = FindExistingMemberInSystem(member.Hid, member.Name);
string newHid = existingMember?.Hid ?? await FindFreeHid();
string newHid = existingMember?.Hid ?? await _conn.QuerySingleAsync<string>("find_free_member_hid", commandType: CommandType.StoredProcedure);
// Upsert member data and return the ID
QueryBuilder qb = QueryBuilder.Upsert("members", "hid")
@@ -112,19 +113,6 @@ namespace PluralKit.Core
return null;
}
private async Task<string> FindFreeHid()
{
string hid;
do
{
hid = await _conn.QuerySingleOrDefaultAsync<string>(
"select @Hid where not exists (select id from members where hid = @Hid)",
new {Hid = StringUtils.GenerateHid()});
} while (hid == null);
return hid;
}
/// <summary>
/// Register switches in bulk.
/// </summary>

View File

@@ -6,18 +6,6 @@ namespace PluralKit.Core
{
public static class StringUtils
{
public static string GenerateHid()
{
var rnd = new Random();
var charset = "abcdefghijklmnopqrstuvwxyz";
string hid = "";
for (int i = 0; i < 5; i++)
{
hid += charset[rnd.Next(charset.Length)];
}
return hid;
}
public static string GenerateToken()
{
var buf = new byte[48]; // Results in a 64-byte Base64 string (no padding)