blob: c3ac5bd519b363f4c65879382191708110c83807 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
using System;
using System.Diagnostics.CodeAnalysis;
using VNLib.Hashing;
using VNLib.Net.Http;
using VNLib.Plugins.Essentials.Extensions;
using VNLib.Plugins.Essentials.Sessions.Runtime;
#nullable enable
namespace VNLib.Plugins.Essentials.Sessions.Memory
{
internal sealed class SessionIdFactory : ISessionIdFactory
{
private readonly int IdSize;
private readonly string cookieName;
private readonly TimeSpan ValidFor;
public SessionIdFactory(uint idSize, string cookieName, TimeSpan validFor)
{
IdSize = (int)idSize;
this.cookieName = cookieName;
ValidFor = validFor;
}
public string GenerateSessionId(IHttpEvent entity)
{
//Random hex hash
string cookie = RandomHash.GetRandomBase32(IdSize);
//Set the session id cookie
entity.Server.SetCookie(cookieName, cookie, ValidFor, secure: true, httpOnly: true);
//return session-id value from cookie value
return cookie;
}
public bool TryGetSessionId(IHttpEvent entity, [NotNullWhen(true)] out string? sessionId)
{
//Get authorization token and make sure its not too large to cause a buffer overflow
if (entity.Server.GetCookie(cookieName, out sessionId))
{
return true;
}
//Only add sessions for user-agents
else if (entity.Server.IsBrowser())
{
//Get a new session id
sessionId = GenerateSessionId(entity);
return true;
}
else
{
sessionId = null;
return false;
}
}
}
}
|