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// Copyright (c) 2004-2009 Sergey Lyubka
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
// $Id: mongoose.cs 472 2009-08-30 22:40:29Z spsone1 $
using System;
using System.Runtime.InteropServices;
[StructLayout(LayoutKind.Sequential)] public struct MongooseHeader {
public IntPtr name; // Using IntPtr here because if we use strings here,
public IntPtr value; // it won't be properly marshalled.
};
// This is "struct mg_request_info" from mongoose.h header file
[StructLayout(LayoutKind.Sequential)] public struct MongooseRequestInfo {
public string request_method;
public string uri;
public string http_version;
public string query_string;
public IntPtr post_data;
public string remote_user;
public int remote_ip; //int to match the 32bit declaration in c
public int remote_port;
public int post_data_len;
public int status_code;
public int num_headers;
[MarshalAs(UnmanagedType.ByValArray,SizeConst=64)] public MongooseHeader[] http_headers;
};
// This is a delegate for mg_callback_t from mongoose.h header file
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate void MongooseCallback2(IntPtr conn, ref MongooseRequestInfo ri, IntPtr user_data);
// This is a delegate to be used by the application
public delegate void MongooseCallback(MongooseConnection conn, MongooseRequestInfo ri);
public class Mongoose {
public string version;
private IntPtr ctx;
//These two events are here to store a ref to the callbacks while they are over in unmanaged code.
private event MongooseCallback2 delegates2;
private event MongooseCallback delegates1;
[DllImport("_mongoose",CallingConvention=CallingConvention.Cdecl)] private static extern IntPtr mg_start();
[DllImport("_mongoose",CallingConvention=CallingConvention.Cdecl)] private static extern void mg_stop(IntPtr ctx);
[DllImport("_mongoose",CallingConvention=CallingConvention.Cdecl)] private static extern string mg_version();
[DllImport("_mongoose",CallingConvention=CallingConvention.Cdecl)] private static extern int mg_set_option(IntPtr ctx, string name, string value);
[DllImport("_mongoose",CallingConvention=CallingConvention.Cdecl)] private static extern string mg_get_option(IntPtr ctx, string name);
[DllImport("_mongoose",CallingConvention=CallingConvention.Cdecl)] private static extern void mg_set_uri_callback(IntPtr ctx, string uri_regex, MulticastDelegate func, IntPtr data);
[DllImport("_mongoose",CallingConvention=CallingConvention.Cdecl)] private static extern void mg_set_log_callback(IntPtr ctx, MulticastDelegate func);
public Mongoose() {
ctx = mg_start();
version = mg_version();
}
~Mongoose() {
mg_stop(this.ctx);
this.ctx = IntPtr.Zero;
}
public int set_option(string option_name, string option_value) {
return mg_set_option(this.ctx, option_name, option_value);
}
public string get_option(string option_name) {
return mg_get_option(this.ctx, option_name);
}
public void set_uri_callback(string uri_regex, MongooseCallback func) {
// Build a closure around user function. Initialize connection object there which wraps
// mg_write() and other useful methods, and then call user specified handler.
MongooseCallback2 callback = delegate(IntPtr conn, ref MongooseRequestInfo ri, IntPtr user_data) {
MongooseConnection connection = new MongooseConnection(conn, this);
func(connection, ri);
};
// store a reference to the callback so it won't be GC'ed while its over in unmanged code
delegates2 += callback;
mg_set_uri_callback(this.ctx, uri_regex, callback, IntPtr.Zero);
}
public void set_log_callback(MongooseCallback func) {
delegates1 += func;
mg_set_log_callback(this.ctx, func);
}
}
public class MongooseConnection {
public Mongoose mongoose;
private IntPtr conn;
[DllImport("_mongoose",CallingConvention=CallingConvention.Cdecl)] private static extern string mg_get_header(IntPtr ctx, string name);
[DllImport("_mongoose",CallingConvention=CallingConvention.Cdecl)] private static extern string mg_get_var(IntPtr ctx, string name);
[DllImport("_mongoose",CallingConvention=CallingConvention.Cdecl)] private static extern void mg_free(IntPtr ptr);
[DllImport("_mongoose",CallingConvention=CallingConvention.Cdecl)] public static extern int mg_write(IntPtr conn, string data, int length);
public MongooseConnection(IntPtr conn_, Mongoose mongoose_) {
mongoose = mongoose_;
conn = conn_;
}
public string get_header(string header_name) {
return mg_get_header(this.conn, header_name);
}
public string get_var(string header_name) {
string s = mg_get_var(this.conn, header_name);
string copy = "" + s;
mg_free(Marshal.StringToHGlobalAnsi(s));
return copy;
}
public int write(string data) {
return mg_write(this.conn, data, data.Length);
}
}
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