You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

129 lines
4.0 KiB

using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.IO;
using System.Net;
using System.Security.Cryptography.X509Certificates;
using System.Text;
namespace Apewer.Web
{
/// <summary>响应。</summary>
public sealed class MiniResponse
{
bool _disposed = false;
/// <summary>上下文。</summary>
public MiniContext Context { get; private set; }
/// <summary>保持连接。</summary>
internal bool KeepAlive { get; set; }
/// <summary>HTTP 状态码。</summary>
/// <remarks>默认值:200</remarks>
public int Status { get; set; }
/// <summary>头。</summary>
public StringPairs Headers { get; set; }
/// <summary>内容类型。</summary>
public string ContentType { get; set; }
/// <summary>内容长度。</summary>
public long ContentLength { get; set; }
/// <summary>重定向地址。</summary>
internal string Location { get; set; }
/// <summary></summary>
public Stream Body { get => Context.Connection.GetResponseStream(); }
internal MiniResponse(MiniContext context)
{
Context = context;
Headers = new StringPairs();
ContentLength = -1;
Status = 200;
}
/// <summary></summary>
public Json ToJson()
{
var json = new Json();
json.SetProperty("Status", Status);
json.SetProperty("Location", Location);
json.SetProperty("ContentType", ContentType);
json.SetProperty("ContentLength", ContentLength);
json.SetProperty("Headers", Json.From(Headers));
return json;
}
/// <summary>重定向到指定的 URL。</summary>
/// <exception cref="ArgumentNullException"></exception>
/// <exception cref="ArgumentException"></exception>
public void Redirect(string url, int status)
{
if (url == null) throw new ArgumentNullException(nameof(url));
url = TextUtility.Trim(url);
if (url.IsEmpty()) throw new ArgumentException("参数 url 为空。");
Status = 302;
Location = url;
}
void Close(bool force)
{
if (_disposed) return;
_disposed = true;
Context.Connection.Close(force);
}
/// <summary>关闭连接。</summary>
public void Close() => Close(false);
#region cookies
/// <summary>生成 Cookie 的头字段。</summary>
public static string Format(Cookie cookie)
{
if (cookie == null) return null;
if (string.IsNullOrEmpty(cookie.Name)) return null;
var segs = new List<string>(4);
if (cookie.Version > 0) segs.Add("Version=" + cookie.Version.ToString());
if (!string.IsNullOrEmpty(cookie.Name)) segs.Add(cookie.Name + "=" + (cookie.Value ?? ""));
if (!string.IsNullOrEmpty(cookie.Path)) segs.Add("Path=" + cookie.Path);
if (!string.IsNullOrEmpty(cookie.Domain)) segs.Add("Domain=" + cookie.Domain);
if (!string.IsNullOrEmpty(cookie.Port)) segs.Add("Port=" + cookie.Port);
if (segs.Count < 1) return null;
var text = string.Join(";", segs.ToArray());
return text;
}
static string QuotedString(Cookie cookie, string value)
{
if (cookie.Version == 0 || IsToken(value)) return value;
else return "\"" + value.Replace("\"", "\\\"") + "\"";
}
static bool IsToken(string value)
{
// from RFC 2965, 2068
const string tspecials = "()<>@,;:\\\"/[]?={} \t";
int len = value.Length;
for (int i = 0; i < len; i++)
{
char c = value[i];
if (c < 0x20 || c >= 0x7f || tspecials.IndexOf(c) != -1) return false;
}
return true;
}
#endregion
}
}