// 处理一次请求
private void _request_once(HttpListenerContext ctx)
{
HttpListenerRequest req = ctx.Request;
HttpListenerResponse res = ctx.Response;
FawRequest _req = new FawRequest()
{
_check_int = m_check_int, _check_long = m_check_long, _check_string = m_check_string
};
_req.m_url = req.RawUrl; // 此处缺失schema://domain:host
_req.m_method = req.HttpMethod.ToUpper();
// 获取请求命令
_req.m_path = req.RawUrl.simplify_path();
int _p = _req.m_path.IndexOfAny(new char [] { '?', '#' });
if (_p > 0)
{
_req.m_path = _req.m_path.Substring(0, _p);
}
// 获取请求内容
foreach (string str_key in req.QueryString.AllKeys)
{
_req.m_gets.Add(str_key, req.QueryString [str_key]);
}
if (_req.m_method == "POST")
{
(_req.m_posts, _req.m_files) = parse_form(req);
}
// 获取请求者IP
if ((req.Headers ["X-Real-IP"]?.Length ?? 0) > 0)
{
_req.m_ip = req.Headers ["X-Real-IP"];
_req.m_agent_ip = req.UserHostAddress;
}
else
{
_req.m_ip = req.UserHostAddress;
}
FawResponse _res = new FawResponse();
try {
// 生成请求内容
res.StatusCode = 200;
byte [] result_data = new byte [0];
if (_req.m_method != "HEAD")
{
try {
if (_req.m_path.left_is("/api/"))
{
bool _proc = false;
if (m_request_handlers.ContainsKey($"{_req.m_method} {_req.m_path}"))
{
m_request_handlers [$"{_req.m_method} {_req.m_path}"].process(_req, _res);
_proc = true;
}
else if (m_request_handlers.ContainsKey($" {_req.m_path}"))
{
m_request_handlers [$" {_req.m_path}"].process(_req, _res);
_proc = true;
}
if (!_proc)
{
throw new Exception("Unknown request / 未知请求");
}
}
else if (_req.m_path.left_is("/swagger/") && m_doc_info != null)
{
if (_req.m_path == "/swagger/api.json")
{
_res.write(m_swagger_data);
_res.set_content_from_filename(_req.m_path);
}
else
{
var _asm_path = $"{MethodBase.GetCurrentMethod ().DeclaringType.Namespace}.Swagger.res.{_req.m_path.mid ("/swagger/")}";
using (var _stream = Assembly.GetCallingAssembly().GetManifestResourceStream(_asm_path)) {
if (_stream == null)
{
throw new Exception("File Not Found");
}
var _buffer = new byte [_stream.Length];
_stream.Read(_buffer);
_res.write(_buffer);
_res.set_content_from_filename(_asm_path);
}
}
}
else if (_req.m_path.left_is("/monitor/") && m_monitor != null)
{
if (_req.m_path == "/monitor/data.json")
{
_res.write(m_monitor.get_json().Result);
_res.set_content_from_filename(_req.m_path);
}
}
else if (_req.m_method == "GET")
{
bool _is_404 = (_req.m_path == "/404.html");
if (_is_404)
{
_res.m_status_code = 404;
}
else if (_req.m_path == "/")
{
if (File.Exists($"{m_wwwroot}index.html"))
{
_req.m_path = "/index.html";
}
else if (File.Exists($"{m_wwwroot}index.htm"))
{
_req.m_path = "/index.htm";
}
}
_req.m_path = $"{m_wwwroot}{_req.m_path.Substring (1)}";
if (File.Exists(_req.m_path))
{
_res.write_file(_req.m_path);
}
else if (_is_404)
{
_res.write("404 Not Found");
}
else
{
_res.redirect("404.html");
}
}
result_data = _res._get_writes();
res.StatusCode = _res.m_status_code;
} catch (KeyNotFoundException ex) {
result_data = get_failure_res($"not given parameter {ex.Message.mid ("The given key '", "'")}");
res.StatusCode = 500;
} catch (Exception ex) {
result_data = get_failure_res(ex.GetType().Name == "Exception" ? ex.Message : ex.ToString());
res.StatusCode = 500;
}
}
// 生成请求头
foreach (var(_key, _value) in _res.m_headers)
{
res.AppendHeader(_key, _value);
}
Action <string, string> _unique_add_header = (_key, _value) => {
if (!_res.m_headers.ContainsKey(_key))
{
res.AppendHeader(_key, _value);
}
};
// HTTP头输入可以自定
_unique_add_header("Cache-Control", (_req.m_method == "GET" ? "private" : "no-store"));
_unique_add_header("Content-Type", "text/plain; charset=utf-8");
_unique_add_header("Server", "Microsoft-IIS/7.5"); // nginx/1.9.12
_unique_add_header("X-Powered-By", "ASP.NET");
_unique_add_header("X-AspNet-Version", "4.0.30319");
_unique_add_header("Access-Control-Allow-Origin", "*");
_unique_add_header("Access-Control-Allow-Headers", "X-Requested-With,Content-Type,Accept");
_unique_add_header("Access-Control-Allow-Methods", "HEAD,GET,POST,PUT,DELETE,OPTIONS");
//_unique_add_header ("Content-Length", "");
// 添加cookie
//res.SetCookie (new Cookie ());
// 是否启用压缩
string [] encodings = req.Headers ["Accept-Encoding"]?.Split(',') ?? new string [0];
encodings = (from p in encodings select p.Trim().ToLower()).ToArray();
if (Array.IndexOf(encodings, "gzip") >= 0)
{
// 使用 gzip 压缩
_unique_add_header("Content-Encoding", "gzip");
_unique_add_header("Vary", "Accept-Encoding");
result_data = result_data.gzip_compress();
}
else if (Array.IndexOf(encodings, "deflate") >= 0)
{
// 使用 deflate 压缩
_unique_add_header("Content-Encoding", "deflate");
_unique_add_header("Vary", "Accept-Encoding");
result_data = result_data.deflate_compress();
}
res.OutputStream.Write(result_data, 0, result_data.Length);
} catch (Exception ex) {
Log.show_error(ex);
} finally {
res.Close();
}
}
public void process(FawRequest _req, FawResponse _res)
{
var _params = new object [m_params.Count];
bool _ignore_return = false;
for (int i = 0; i < m_params.Count; ++i)
{
if (m_params [i].Item1 != null)
{
_params [i] = _req.get_type_value(m_params [i].Item1, m_params [i].Item2);
}
else
{
switch (m_params [i].Item2)
{
case "FawRequest":
_params [i] = _req;
break;
case "FawResponse":
_params [i] = _res;
_ignore_return = true;
break;
case ":IP":
_params [i] = _req.m_ip;
break;
case ":AgentIP":
_params [i] = _req.m_agent_ip;
break;
default:
throw new Exception("Request parameter types that are not currently supported / 暂不支持的Request参数类型");
}
}
}
try {
var _ret = m_method.Invoke(null, _params);
//if (_ret.GetType () == typeof (Task<>)) // 始终为False
if (_ret is Task _t)
{
if (_ret.GetType() != typeof(Task))
{
_ret = _ret.GetType().InvokeMember("Result", BindingFlags.GetProperty, null, _ret, null);
}
else
{
_t.Wait();
_ret = null;
}
}
if (!_ignore_return)
{
if (_ret is byte _byte)
{
_res.write(_byte);
}
else if (_ret is byte [] _bytes)
{
_res.write(_bytes);
}
else
{
string _content = (_ret.GetType().IsPrimitive ? _ret.to_str() : _ret.to_json());
object _o;
if (_content == "")
{
_o = new { result = "success" };
}
else if (_content[0] != '[' && _content[0] != '{')
{
_o = new { result = "success", content = _content };
}
else
{
_o = new { result = "success", content = JToken.Parse(_content) };
}
_res.write(_o.to_json());
}
}
} catch (TargetInvocationException ex) {
throw ex.InnerException;
}
}
