SUBDIR+=	serve

SUBDIR=	mongoose \

	plugin

.include <bsd.subdir.mk>

## General Information

The *pkg-plugin-serve* plugin is used for serving files/packages.

The plugin uses the [Mongoose](https://github.com/valenok/mongoose) library for 

serving the files/packages over HTTP.

## How to build the plugin?

In order to build the plugin enter into the plugin's directory and run make(1), e.g.:

	$ cd /path/to/pkg-plugins-serve

	$ make

Once the plugin is built you can install it using the following command:

	$ make install 

The plugin will be installed as a shared library in ${PREFIX}/lib/libpkg-plugin-serve.so and the

Mongoose library will be installed in ${PREFIX}/lib/libmongoose.so

## Configuring the plugin

In order to configure the plugin simply copy the *serve.conf* file to the pkgng plugins directory,

which by default is set to */usr/local/etc/pkg/plugins*, unless you've specified it elsewhere by 

using the *PKG\_PLUGINS\_DIR* option.

	$ cp /path/to/pkg-plugins-serve/plugin/serve.conf /usr/local/etc/pkg/plugins/

## Testing the plugin

To test the plugin, first check that it is recongnized and

loaded by pkgng by executing the `pkg plugins` command:

	$ pkg plugins

	NAME       DESC                                VERSION    LOADED    

	stats      Plugin for displaying package stats 1.0        YES       

	template   Template plugin for pkgng           1.0        NO        

	zfssnap    ZFS snapshot plugin for pkgng       1.0        NO        

	mystats    Plugin command for displaying stats 1.0        YES       

	serve      A mongoose plugin for serving files 1.0        YES   

If the plugin shows up correctly then you are good to go!

Now go ahead and test the plugin, example command is given below:

	$ pkg serve -d /path/to/pkgng-repository

Copyright (c) 2004-2010 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.

.include <bsd.own.mk>

LIB=		mongoose

INCS=		mongoose.h

INTERNALLIB=	

#WARNS=		6

SRCS=		mongoose.c

CFLAGS+=	-fPIC

LDADD+=		-lpthread

.include <bsd.lib.mk>

# This file is part of Mongoose project, http://code.google.com/p/mongoose

# $Id: Makefile 473 2009-09-02 11:20:06Z valenok $

PROG=	mongoose

all:

	@echo "make (linux|bsd|solaris|mac|windows|mingw)"

# Possible COPT values: (in brackets are rough numbers for 'gcc -O2' on i386)

# -DHAVE_MD5              - use system md5 library (-2kb)

# -DNDEBUG                - strip off all debug code (-5kb)

# -DDEBUG                 - build debug version (very noisy) (+7kb)

# -DNO_CGI                - disable CGI support (-5kb)

# -DNO_SSL                - disable SSL functionality (-2kb)

# -DCONFIG_FILE=\"file\"  - use `file' as the default config file

# -DHAVE_STRTOUI64        - use system strtoui64() function for strtoull()

# -DSSL_LIB=\"libssl.so.<version>\"   - use system versioned SSL shared object

# -DCRYPTO_LIB=\"libcrypto.so.<version>\" - use system versioned CRYPTO so

##########################################################################

###                 UNIX build: linux, bsd, mac, rtems

##########################################################################

GCC_WARNS   = -W -Wall -pedantic

#  -Wno-missing-field-initializers  -Wno-unused-parameter -Wno-format-zero-length -Wno-missing-braces

CFLAGS      = -W -Wall -std=c99 -O2 $(GCC_WARNS) $(COPT)

MAC_SHARED  = -flat_namespace -bundle -undefined suppress

LINFLAGS    = -ldl -pthread $(CFLAGS)

LIB         = _$(PROG).so

CC          = gcc

# Make sure that the compiler flags come last in the compilation string.

# If not so, this can break some on some Linux distros which use

# "-Wl,--as-needed" turned on by default  in cc command.

# Also, this is turned in many other distros in static linkage builds.

linux:

	$(CC) mongoose.c -shared -fPIC -fpic -o $(LIB) $(LINFLAGS)

	$(CC) mongoose.c main.c -o $(PROG) $(LINFLAGS)

bsd:

	$(CC) mongoose.c -shared -pthread -fpic -fPIC -o $(LIB) $(CFLAGS)

	$(CC) mongoose.c main.c -pthread -o $(PROG) $(CFLAGS)

mac:

	$(CC) mongoose.c -pthread -o $(LIB) $(MAC_SHARED) $(CFLAGS)

	$(CC) mongoose.c main.c -pthread -o $(PROG) $(CFLAGS)

solaris:

	$(CC) mongoose.c -pthread -lnsl \

		-lsocket -fpic -fPIC -shared -o $(LIB) $(CFLAGS)

	$(CC) mongoose.c main.c -pthread -lnsl -lsocket -o $(PROG) $(CFLAGS)

##########################################################################

###            WINDOWS build: Using Visual Studio or Mingw

##########################################################################

# Using Visual Studio 6.0. To build Mongoose:

#  o  Set VC variable below to where VS 6.0 is installed on your system

#  o  Run "PATH_TO_VC6\bin\nmake windows"

VC    = z:

CYA   = y:

#DBG  = /Zi /DDEBUG /Od

DBG   = /DNDEBUG /O1

CL    = cl /MD /TC /nologo $(DBG) /Gz /W3 /DNO_SSL_DL

GUILIB= user32.lib shell32.lib

LINK  = /link /incremental:no /libpath:$(VC)\lib /subsystem:windows \

        ws2_32.lib advapi32.lib cyassl.lib

CYAFL = /c /I $(CYA)/include -I $(CYA)/include/openssl \

        /I $(CYA)/ctaocrypt/include /D _LIB /D OPENSSL_EXTRA

CYASRC= \

	$(CYA)/src/cyassl_int.c \

	$(CYA)/src/cyassl_io.c \

	$(CYA)/src/keys.c \

	$(CYA)/src/tls.c \

	$(CYA)/src/ssl.c \

	$(CYA)/ctaocrypt/src/aes.c \

	$(CYA)/ctaocrypt/src/arc4.c \

	$(CYA)/ctaocrypt/src/asn.c \

	$(CYA)/ctaocrypt/src/coding.c \

	$(CYA)/ctaocrypt/src/ctc_asm.c \

	$(CYA)/ctaocrypt/src/ctc_misc.c \

	$(CYA)/ctaocrypt/src/cyassl_memory.c \

	$(CYA)/ctaocrypt/src/des3.c \

	$(CYA)/ctaocrypt/src/dh.c \

	$(CYA)/ctaocrypt/src/dsa.c \

	$(CYA)/ctaocrypt/src/ecc.c \

	$(CYA)/ctaocrypt/src/hc128.c \

	$(CYA)/ctaocrypt/src/hmac.c \

	$(CYA)/ctaocrypt/src/integer.c \

	$(CYA)/ctaocrypt/src/md4.c \

	$(CYA)/ctaocrypt/src/md5.c \

	$(CYA)/ctaocrypt/src/pwdbased.c \

	$(CYA)/ctaocrypt/src/rabbit.c \

	$(CYA)/ctaocrypt/src/random.c \

	$(CYA)/ctaocrypt/src/ripemd.c \

	$(CYA)/ctaocrypt/src/rsa.c \

	$(CYA)/ctaocrypt/src/sha.c \

	$(CYA)/ctaocrypt/src/sha256.c \

	$(CYA)/ctaocrypt/src/sha512.c \

	$(CYA)/ctaocrypt/src/tfm.c

cyassl:

	$(CL) $(CYASRC) $(CYAFL) $(DEF)

	lib *.obj /out:cyassl.lib

windows:

	rc win32\res.rc

	$(CL) /I win32 main.c mongoose.c /GA $(LINK) win32\res.res \

		$(GUILIB) /out:$(PROG).exe

	$(CL) mongoose.c /GD $(LINK) /DLL /DEF:win32\dll.def /out:_$(PROG).dll

# Build for Windows under MinGW

#MINGWDBG= -DDEBUG -O0 -ggdb

MINGWDBG= -DNDEBUG -Os

MINGWOPT=   -std=c99 -mthreads -Wl,--subsystem,console $(MINGWDBG) -DHAVE_STDINT $(GCC_WARNINGS) $(COPT)

#MINGWOPT=  -std=c99 -mthreads -Wl,--subsystem,windows $(MINGWDBG) -DHAVE_STDINT $(GCC_WARNINGS) $(COPT)

mingw:

	windres win32\res.rc win32\res.o

	$(CC) $(MINGWOPT) mongoose.c -lws2_32 \

		-shared -Wl,--out-implib=$(PROG).lib -o _$(PROG).dll

	$(CC) $(MINGWOPT) -Iwin32 mongoose.c main.c win32\res.o -lws2_32 -ladvapi32 \

		-o $(PROG).exe

##########################################################################

###            Manuals, cleanup, test, release

##########################################################################

man:

	groff -man -T ascii mongoose.1 | col -b > mongoose.txt

	groff -man -T ascii mongoose.1 | less

# "TEST=unit make test" - perform unit test only

# "TEST=embedded" - test embedded API by building and testing test/embed.c

# "TEST=basic_tests" - perform basic tests only (no CGI, SSI..)

tests:

	perl test/test.pl $(TEST)

release: clean

	F=mongoose-`perl -lne '/define\s+MONGOOSE_VERSION\s+"(\S+)"/ and print $$1' mongoose.c`.tgz ; cd .. && tar -czf x mongoose/{LICENSE,Makefile,bindings,examples,test,win32,mongoose.c,mongoose.h,mongoose.1,main.c} && mv x mongoose/$$F

mongoose.c: mongoose.h

main.c: mongoose.h

.PHONY: mongoose.c main.c

clean:

	rm -rf *.o *.core $(PROG) *.obj *.so $(PROG).txt *.dSYM *.tgz $(PROG).exe *.dll *.lib

Overview

--------

Mongoose is easy to use web server. It also can be used as embedded web server library to provide web interface to applications.  

Mongoose executable does not depend on any external library or configuration. If it is copied to any directory and launched from there, it starts to serve that directory on port 8080 (so to access files, go to http://localhost:8080). If some additional config is required - for example, different listening port or IP-based access control, then a mongoose.conf file with respective options can be created in the same directory where executable lives. This makes Mongoose perfect for all sorts of demos, quick tests, file sharing, and Web programming.

Features

--------

- Crossplatform - works on Windows, MacOS and most flavors of UNIX

- CGI, SSL, SSI, Digest (MD5) authorization, resumed download, aliases

- IP-based ACL, Windows service, GET, POST, HEAD, PUT, DELETE methods

- Small footprint: executable size is 40 kB on Linux 2.6 i386 system

- Embeddable with [simple and clean API](https://github.com/valenok/mongoose/blob/master/mongoose.h). Source is in single .c file to make things easy. Minimalistic embedding example is in [hello.c](https://github.com/valenok/mongoose/blob/master/examples/hello.c).

- Python and C# bindings

Mailing list

------------

You can read it online, subscribe to, or send a message at [mongoose-users](http://groups.google.com/group/mongoose-users).

Keep Sergey happy

-----------------

I have a [books wishlist](http://amzn.com/w/1OC2ZCPTQYIEP?sort=priority) on Amazon. If you feel brave, you can buy me a book!

// This is C# example on how to use Mongoose embeddable web server,

// http://code.google.com/p/mongoose

//

// Before using the mongoose module, make sure that Mongoose shared library is

// built and present in the current (or system library) directory

using System;

using System.Runtime.InteropServices;

public class Program {

	// This function is called when user types in his browser http://127.0.0.1:8080/foo

	static private void UriHandler(MongooseConnection conn, MongooseRequestInfo ri) {

		conn.write("HTTP/1.1 200 OK\r\n\r\n");

		conn.write("Hello from C#!\n");

		conn.write("Your user-agent is: " + conn.get_header("User-Agent") + "\n");

	}

    static private void UriDumpInfo(MongooseConnection conn, MongooseRequestInfo ri)

    {

        conn.write("HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n");

        conn.write("<html><body><head>Calling Info</head>");

        conn.write("<p>Request: " + ri.request_method + "</p>");

        conn.write("<p>URI: " + ri.uri + "</p>");

        conn.write("<p>Query: " + ri.query_string + "</p>");

        if (ri.post_data_len > 0) conn.write("<p>Post(" + ri.post_data_len + ")[@" + ri.post_data + "]: '" + Marshal.PtrToStringAnsi(ri.post_data) + "'</p>");

        conn.write("<p>User:" + ri.remote_user + "</p>");

        conn.write("<p>IP: " + ri.remote_ip + "</p>");

        conn.write("<p>HTTP: " + ri.http_version + "</p>");

        conn.write("<p>Port: " + ri.remote_port + "</p>");

        conn.write("<p>NUM Headers: " + ri.num_headers + "</p>");

        for (int i = 0; i < Math.Min(64, ri.num_headers); i++)

        {

            conn.write("<p>" + i + ":" + Marshal.PtrToStringAnsi(ri.http_headers[i].name)

                + ":" + Marshal.PtrToStringAnsi(ri.http_headers[i].value) + "</p>");

        }

        conn.write("</body></html>");

    }

	static void Main() {

		Mongoose web_server = new Mongoose();

		// Set options and /foo URI handler

		web_server.set_option("ports", "8080");

		web_server.set_option("root", "c:\\");

		web_server.set_uri_callback("/foo", new MongooseCallback(UriHandler));

        web_server.set_uri_callback("/dumpinfo", new MongooseCallback(UriDumpInfo));

		// Serve requests until user presses "enter" on a keyboard

		Console.ReadLine();

	}

}

//  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);

	}

}

# This is Python example on how to use Mongoose embeddable web server,

# http://code.google.com/p/mongoose

#

# Before using the mongoose module, make sure that Mongoose shared library is

# built and present in the current (or system library) directory

import mongoose

import sys

# Handle /show and /form URIs.

def EventHandler(event, conn):

    info = conn.info

    if event == mongoose.HTTP_ERROR:

        conn.printf('%s', 'HTTP/1.0 200 OK\r\n')

        conn.printf('%s', 'Content-Type: text/plain\r\n\r\n')

        conn.printf('HTTP error: %d\n', info.status_code)

        return True

    elif event == mongoose.NEW_REQUEST and info.uri == '/show':

        conn.printf('%s', 'HTTP/1.0 200 OK\r\n')

        conn.printf('%s', 'Content-Type: text/plain\r\n\r\n')

        conn.printf('%s %s\n', info.request_method, info.uri)

        if info.request_method == 'POST':

            content_len = conn.get_header('Content-Length')

            post_data = conn.read(int(content_len))

            my_var = conn.get_var(post_data, 'my_var')

        else:

            my_var = conn.get_var(info.query_string, 'my_var')

        conn.printf('my_var: %s\n', my_var or '<not set>')

        conn.printf('HEADERS: \n')

        for header in info.http_headers[:info.num_headers]:

            conn.printf('  %s: %s\n', header.name, header.value)

        return True

    elif event == mongoose.NEW_REQUEST and info.uri == '/form':

        conn.write('HTTP/1.0 200 OK\r\n'

               'Content-Type: text/html\r\n\r\n'

               'Use GET: <a href="/show?my_var=hello">link</a>'

               '<form action="/show" method="POST">'

               'Use POST: type text and submit: '

               '<input type="text" name="my_var"/>'

               '<input type="submit"/>'

               '</form>')

        return True

    elif event == mongoose.NEW_REQUEST and info.uri == '/secret':

        conn.send_file('/etc/passwd')

        return True

    else:

        return False

# Create mongoose object, and register '/foo' URI handler

# List of options may be specified in the contructor

server = mongoose.Mongoose(EventHandler,

                           document_root='/tmp',

                           listening_ports='8080')

print ('Mongoose started on port %s, press enter to quit'

       % server.get_option('listening_ports'))

sys.stdin.read(1)

# Deleting server object stops all serving threads

print 'Stopping server.'

del server

#  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.py 471 2009-08-30 14:30:21Z valenok $

"""

This module provides python binding for the Mongoose web server.

There are two classes defined:

  Connection: - wraps all functions that accept struct mg_connection pointer

  as first argument.

  Mongoose: wraps all functions that accept struct mg_context pointer as

  first argument.

  Creating Mongoose object automatically starts server, deleting object

  automatically stops it. There is no need to call mg_start() or mg_stop().

"""

import ctypes

import os

NEW_REQUEST = 0

HTTP_ERROR = 1

EVENT_LOG = 2

INIT_SSL = 3

class mg_header(ctypes.Structure):

  """A wrapper for struct mg_header."""

  _fields_ = [

    ('name', ctypes.c_char_p),

    ('value', ctypes.c_char_p),

  ]

class mg_request_info(ctypes.Structure):

  """A wrapper for struct mg_request_info."""

  _fields_ = [

    ('user_data', ctypes.c_char_p),

    ('request_method', ctypes.c_char_p),

    ('uri', ctypes.c_char_p),

    ('http_version', ctypes.c_char_p),

    ('query_string', ctypes.c_char_p),

    ('remote_user', ctypes.c_char_p),

    ('log_message', ctypes.c_char_p),

    ('remote_ip', ctypes.c_long),

    ('remote_port', ctypes.c_int),

    ('status_code', ctypes.c_int),

    ('is_ssl', ctypes.c_int),

    ('num_headers', ctypes.c_int),

    ('http_headers', mg_header * 64),

  ]

mg_callback_t = ctypes.CFUNCTYPE(ctypes.c_void_p, ctypes.c_int, ctypes.c_void_p)

class Connection(object):

  """A wrapper class for all functions that take

  struct mg_connection * as the first argument."""

  def __init__(self, mongoose, connection):

    self.m = mongoose

    self.conn = ctypes.c_void_p(connection)

    self.info = self.m.dll.mg_get_request_info(self.conn).contents

  def get_header(self, name):

    val = self.m.dll.mg_get_header(self.conn, name)

    return ctypes.c_char_p(val).value

  def get_var(self, data, name):

    size = data and len(data) or 0

    buf = ctypes.create_string_buffer(size)

    n = self.m.dll.mg_get_var(data, size, name, buf, size)

    return n >= 0 and buf or None

  def printf(self, fmt, *args):

    val = self.m.dll.mg_printf(self.conn, fmt, *args)

    return ctypes.c_int(val).value

  def write(self, data):

    val = self.m.dll.mg_write(self.conn, data, len(data))

    return ctypes.c_int(val).value

  def read(self, size):

    buf = ctypes.create_string_buffer(size)

    n = self.m.dll.mg_read(self.conn, buf, size)

    return n <= 0 and None or buf[:n]

  def send_file(self, path):

    self.m.dll.mg_send_file(self.conn, path)

class Mongoose(object):

  """A wrapper class for Mongoose shared library."""

  def __init__(self, callback, **kwargs):

    if os.name == 'nt':

      self.dll = ctypes.WinDLL('_mongoose.dll')

    else:

      self.dll = ctypes.CDLL('_mongoose.so')

    self.dll.mg_start.restype = ctypes.c_void_p

    self.dll.mg_modify_passwords_file.restype = ctypes.c_int

    self.dll.mg_read.restype = ctypes.c_int

    self.dll.mg_write.restype = ctypes.c_int

    self.dll.mg_printf.restype = ctypes.c_int

    self.dll.mg_get_header.restype = ctypes.c_char_p

    self.dll.mg_get_var.restype = ctypes.c_int

    self.dll.mg_get_cookie.restype = ctypes.c_int

    self.dll.mg_get_option.restype = ctypes.c_char_p

    self.dll.mg_get_request_info.restype = ctypes.POINTER(mg_request_info)

    if callback:

      # Create a closure that will be called by the  shared library.

      def func(event, connection):

        # Wrap connection pointer into the connection

        # object and call Python callback

        conn = Connection(self, connection)

        return callback(event, conn) and 1 or 0

      # Convert the closure into C callable object

      self.callback = mg_callback_t(func)

      self.callback.restype = ctypes.c_char_p

    else:

      self.callback = ctypes.c_void_p(0)

    args = [y for x in kwargs.items() for y in x] + [None]

    options = (ctypes.c_char_p * len(args))(*args)

    ret = self.dll.mg_start(self.callback, 0, options)

    self.ctx = ctypes.c_void_p(ret)

  def __del__(self):

    """Destructor, stop Mongoose instance."""

    self.dll.mg_stop(self.ctx)

  def get_option(self, name):

    return self.dll.mg_get_option(self.ctx, name)

CFLAGS=	-W -Wall -I.. -pthread -g

all:

	OS=`uname`; \

	  test "$$OS" = Linux && LIBS="-ldl" ; \

	  $(CC) $(CFLAGS) hello.c ../mongoose.c  $$LIBS $(ADD) -o hello;

	  $(CC) $(CFLAGS) post.c ../mongoose.c  $$LIBS $(ADD) -o post;

	  $(CC) $(CFLAGS) chat.c ../mongoose.c  $$LIBS $(ADD) -o chat

// This file is part of the Mongoose project, http://code.google.com/p/mongoose

// It implements an online chat server. For more details,

// see the documentation on the project web site.

// To test the application,

// 1. type "make" in the directory where this file lives

// 2. point your browser to http://127.0.0.1:8081

#include <stdio.h>

#include <stdlib.h>

#include <assert.h>

#include <string.h>

#include <time.h>

#include <stdarg.h>

#include <pthread.h>

#include "mongoose.h"

#define MAX_USER_LEN  20

#define MAX_MESSAGE_LEN  100

#define MAX_MESSAGES 5

#define MAX_SESSIONS 2

#define SESSION_TTL 120

static const char *authorize_url = "/authorize";

static const char *login_url = "/login.html";

static const char *ajax_reply_start =

  "HTTP/1.1 200 OK\r\n"

  "Cache: no-cache\r\n"

  "Content-Type: application/x-javascript\r\n"

  "\r\n";

// Describes single message sent to a chat. If user is empty (0 length),

// the message is then originated from the server itself.

struct message {

  long id;                     // Message ID

  char user[MAX_USER_LEN];     // User that have sent the message

  char text[MAX_MESSAGE_LEN];  // Message text

  time_t timestamp;            // Message timestamp, UTC

};

// Describes web session.

struct session {

  char session_id[33];      // Session ID, must be unique

  char random[20];          // Random data used for extra user validation

  char user[MAX_USER_LEN];  // Authenticated user

  time_t expire;            // Expiration timestamp, UTC

};

static struct message messages[MAX_MESSAGES];  // Ringbuffer for messages

static struct session sessions[MAX_SESSIONS];  // Current sessions

static long last_message_id;

// Protects messages, sessions, last_message_id

static pthread_rwlock_t rwlock = PTHREAD_RWLOCK_INITIALIZER;

// Get session object for the connection. Caller must hold the lock.

static struct session *get_session(const struct mg_connection *conn) {

  int i;

  char session_id[33];

  time_t now = time(NULL);

  mg_get_cookie(conn, "session", session_id, sizeof(session_id));

  for (i = 0; i < MAX_SESSIONS; i++) {

    if (sessions[i].expire != 0 &&

        sessions[i].expire > now &&

        strcmp(sessions[i].session_id, session_id) == 0) {

      break;

    }

  }

  return i == MAX_SESSIONS ? NULL : &sessions[i];

}

static void get_qsvar(const struct mg_request_info *request_info,

                      const char *name, char *dst, size_t dst_len) {

  const char *qs = request_info->query_string;

  mg_get_var(qs, strlen(qs == NULL ? "" : qs), name, dst, dst_len);

}

// Get a get of messages with IDs greater than last_id and transform them

// into a JSON string. Return that string to the caller. The string is

// dynamically allocated, caller must free it. If there are no messages,

// NULL is returned.

static char *messages_to_json(long last_id) {

  const struct message *message;

  int max_msgs, len;

  char buf[sizeof(messages)];  // Large enough to hold all messages

  // Read-lock the ringbuffer. Loop over all messages, making a JSON string.

  pthread_rwlock_rdlock(&rwlock);

  len = 0;

  max_msgs = sizeof(messages) / sizeof(messages[0]);

  // If client is too far behind, return all messages.

  if (last_message_id - last_id > max_msgs) {

    last_id = last_message_id - max_msgs;

  }

  for (; last_id < last_message_id; last_id++) {

    message = &messages[last_id % max_msgs];

    if (message->timestamp == 0) {

      break;

    }

    // buf is allocated on stack and hopefully is large enough to hold all

    // messages (it may be too small if the ringbuffer is full and all

    // messages are large. in this case asserts will trigger).

    len += snprintf(buf + len, sizeof(buf) - len,

        "{user: '%s', text: '%s', timestamp: %lu, id: %lu},",

        message->user, message->text, message->timestamp, message->id);

    assert(len > 0);

    assert((size_t) len < sizeof(buf));

  }

  pthread_rwlock_unlock(&rwlock);

  return len == 0 ? NULL : strdup(buf);

}

// If "callback" param is present in query string, this is JSONP call.

// Return 1 in this case, or 0 if "callback" is not specified.

// Wrap an output in Javascript function call.

static int handle_jsonp(struct mg_connection *conn,

                        const struct mg_request_info *request_info) {

  char cb[64];

  get_qsvar(request_info, "callback", cb, sizeof(cb));

  if (cb[0] != '\0') {

    mg_printf(conn, "%s(", cb);

  }

  return cb[0] == '\0' ? 0 : 1;

}

// A handler for the /ajax/get_messages endpoint.

// Return a list of messages with ID greater than requested.

static void ajax_get_messages(struct mg_connection *conn,

                              const struct mg_request_info *request_info) {

  char last_id[32], *json;

  int is_jsonp;

  mg_printf(conn, "%s", ajax_reply_start);

  is_jsonp = handle_jsonp(conn, request_info);

  get_qsvar(request_info, "last_id", last_id, sizeof(last_id));

  if ((json = messages_to_json(strtoul(last_id, NULL, 10))) != NULL) {

    mg_printf(conn, "[%s]", json);

    free(json);

  }

  if (is_jsonp) {

    mg_printf(conn, "%s", ")");

  }

}

// Allocate new message. Caller must hold the lock.

static struct message *new_message(void) {

  static int size = sizeof(messages) / sizeof(messages[0]);

  struct message *message = &messages[last_message_id % size];

  message->id = last_message_id++;

  message->timestamp = time(0);

  return message;

}

static void my_strlcpy(char *dst, const char *src, size_t len) {

  strncpy(dst, src, len);

  dst[len - 1] = '\0';

}

// A handler for the /ajax/send_message endpoint.

static void ajax_send_message(struct mg_connection *conn,

                              const struct mg_request_info *request_info) {

  struct message *message;

  struct session *session;

  char text[sizeof(message->text) - 1];

  int is_jsonp;

  mg_printf(conn, "%s", ajax_reply_start);

  is_jsonp = handle_jsonp(conn, request_info);

  get_qsvar(request_info, "text", text, sizeof(text));

  if (text[0] != '\0') {

    // We have a message to store. Write-lock the ringbuffer,

    // grab the next message and copy data into it.

    pthread_rwlock_wrlock(&rwlock);

    message = new_message();

    // TODO(lsm): JSON-encode all text strings

    session = get_session(conn);

    assert(session != NULL);

    my_strlcpy(message->text, text, sizeof(text));

    my_strlcpy(message->user, session->user, sizeof(message->user));

    pthread_rwlock_unlock(&rwlock);

  }

  mg_printf(conn, "%s", text[0] == '\0' ? "false" : "true");

  if (is_jsonp) {

    mg_printf(conn, "%s", ")");

  }

}

// Redirect user to the login form. In the cookie, store the original URL

// we came from, so that after the authorization we could redirect back.

static void redirect_to_login(struct mg_connection *conn,

                              const struct mg_request_info *request_info) {

  mg_printf(conn, "HTTP/1.1 302 Found\r\n"

      "Set-Cookie: original_url=%s\r\n"

      "Location: %s\r\n\r\n",

      request_info->uri, login_url);

}

// Return 1 if username/password is allowed, 0 otherwise.

static int check_password(const char *user, const char *password) {

  // In production environment we should ask an authentication system

  // to authenticate the user.

  // Here however we do trivial check that user and password are not empty

  return (user[0] && password[0]);

}

// Allocate new session object

static struct session *new_session(void) {

  int i;

  time_t now = time(NULL);

  pthread_rwlock_wrlock(&rwlock);

  for (i = 0; i < MAX_SESSIONS; i++) {

    if (sessions[i].expire == 0 || sessions[i].expire < now) {

      sessions[i].expire = time(0) + SESSION_TTL;

      break;

    }

  }

  pthread_rwlock_unlock(&rwlock);

  return i == MAX_SESSIONS ? NULL : &sessions[i];

}

// Generate session ID. buf must be 33 bytes in size.

// Note that it is easy to steal session cookies by sniffing traffic.

// This is why all communication must be SSL-ed.

static void generate_session_id(char *buf, const char *random,

                                const char *user) {

  mg_md5(buf, random, user, NULL);

}

static void send_server_message(const char *fmt, ...) {

  va_list ap;

  struct message *message;

  pthread_rwlock_wrlock(&rwlock);

  message = new_message();

  message->user[0] = '\0';  // Empty user indicates server message

  va_start(ap, fmt);

  vsnprintf(message->text, sizeof(message->text), fmt, ap);

  va_end(ap);

  pthread_rwlock_unlock(&rwlock);

}

// A handler for the /authorize endpoint.

// Login page form sends user name and password to this endpoint.

static void authorize(struct mg_connection *conn,

                      const struct mg_request_info *request_info) {

  char user[MAX_USER_LEN], password[MAX_USER_LEN];

  struct session *session;

  // Fetch user name and password.

  get_qsvar(request_info, "user", user, sizeof(user));

  get_qsvar(request_info, "password", password, sizeof(password));

  if (check_password(user, password) && (session = new_session()) != NULL) {

    // Authentication success:

    //   1. create new session

    //   2. set session ID token in the cookie

    //   3. remove original_url from the cookie - not needed anymore

    //   4. redirect client back to the original URL

    //

    // The most secure way is to stay HTTPS all the time. However, just to

    // show the technique, we redirect to HTTP after the successful

    // authentication. The danger of doing this is that session cookie can

    // be stolen and an attacker may impersonate the user.

    // Secure application must use HTTPS all the time.

    my_strlcpy(session->user, user, sizeof(session->user));

    snprintf(session->random, sizeof(session->random), "%d", rand());

    generate_session_id(session->session_id, session->random, session->user);

    send_server_message("<%s> joined", session->user);

    mg_printf(conn, "HTTP/1.1 302 Found\r\n"

        "Set-Cookie: session=%s; max-age=3600; http-only\r\n"  // Session ID

        "Set-Cookie: user=%s\r\n"  // Set user, needed by Javascript code

        "Set-Cookie: original_url=/; max-age=0\r\n"  // Delete original_url

        "Location: /\r\n\r\n",

        session->session_id, session->user);

  } else {

    // Authentication failure, redirect to login.

    redirect_to_login(conn, request_info);

  }

}

// Return 1 if request is authorized, 0 otherwise.

static int is_authorized(const struct mg_connection *conn,

                         const struct mg_request_info *request_info) {

  struct session *session;

  char valid_id[33];

  int authorized = 0;

  // Always authorize accesses to login page and to authorize URI

  if (!strcmp(request_info->uri, login_url) ||

      !strcmp(request_info->uri, authorize_url)) {

    return 1;

  }

  pthread_rwlock_rdlock(&rwlock);

  if ((session = get_session(conn)) != NULL) {

    generate_session_id(valid_id, session->random, session->user);

    if (strcmp(valid_id, session->session_id) == 0) {

      session->expire = time(0) + SESSION_TTL;

      authorized = 1;

    }

  }

  pthread_rwlock_unlock(&rwlock);

  return authorized;

}

static void redirect_to_ssl(struct mg_connection *conn,

                            const struct mg_request_info *request_info) {

  const char *p, *host = mg_get_header(conn, "Host");

  if (host != NULL && (p = strchr(host, ':')) != NULL) {

    mg_printf(conn, "HTTP/1.1 302 Found\r\n"

              "Location: https://%.*s:8082/%s:8082\r\n\r\n",

              (int) (p - host), host, request_info->uri);

  } else {

    mg_printf(conn, "%s", "HTTP/1.1 500 Error\r\n\r\nHost: header is not set");

  }

}

static void *event_handler(enum mg_event event,

                           struct mg_connection *conn) {

  const struct mg_request_info *request_info = mg_get_request_info(conn);

  void *processed = "yes";

  if (event == MG_NEW_REQUEST) {

    if (!request_info->is_ssl) {

      redirect_to_ssl(conn, request_info);

    } else if (!is_authorized(conn, request_info)) {

      redirect_to_login(conn, request_info);

    } else if (strcmp(request_info->uri, authorize_url) == 0) {

      authorize(conn, request_info);

    } else if (strcmp(request_info->uri, "/ajax/get_messages") == 0) {

      ajax_get_messages(conn, request_info);

    } else if (strcmp(request_info->uri, "/ajax/send_message") == 0) {

      ajax_send_message(conn, request_info);

    } else {

      // No suitable handler found, mark as not processed. Mongoose will

      // try to serve the request.

      processed = NULL;

    }

  } else {

    processed = NULL;

  }

  return processed;

}

static const char *options[] = {

  "document_root", "html",

  "listening_ports", "8081,8082s",

  "ssl_certificate", "ssl_cert.pem",

  "num_threads", "5",

  NULL

};

int main(void) {

  struct mg_context *ctx;

  // Initialize random number generator. It will be used later on for

  // the session identifier creation.

  srand((unsigned) time(0));

  // Setup and start Mongoose

  if ((ctx = mg_start(&event_handler, NULL, options)) == NULL) {

    printf("%s\n", "Cannot start chat server, fatal exit");

    exit(EXIT_FAILURE);

  }

  // Wait until enter is pressed, then exit

  printf("Chat server started on ports %s, press enter to quit.\n",

         mg_get_option(ctx, "listening_ports"));

  getchar();

  mg_stop(ctx);

  printf("%s\n", "Chat server stopped.");

  return EXIT_SUCCESS;

}

// vim:ts=2:sw=2:et

#include <stdio.h>

#include <string.h>

#include "mongoose.h"

static void *callback(enum mg_event event,

                      struct mg_connection *conn) {

  const struct mg_request_info *request_info = mg_get_request_info(conn);

  if (event == MG_NEW_REQUEST) {

    char content[1024];

    int content_length = snprintf(content, sizeof(content),

                                  "Hello from mongoose! Remote port: %d",

                                  request_info->remote_port);

    mg_printf(conn,

              "HTTP/1.1 200 OK\r\n"

              "Content-Type: text/plain\r\n"

              "Content-Length: %d\r\n"        // Always set Content-Length

              "\r\n"

              "%s",

              content_length, content);

    // Mark as processed

    return "";

  } else {

    return NULL;

  }

}

int main(void) {

  struct mg_context *ctx;

  const char *options[] = {"listening_ports", "8080", NULL};

  ctx = mg_start(&callback, NULL, options);

  getchar();  // Wait until user hits "enter"

  mg_stop(ctx);

  return 0;

}

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"

  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 

<html xmlns="http://www.w3.org/1999/xhtml" lang="en" dir="ltr"> 

  <!-- This file is part of the  Mongoose project,

    http://code.google.com/p/mongoose -->

  <head>

    <title>Mongoose chat server</title>

    <meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>

    <link type="text/css" rel="stylesheet" href="style.css"/>

    <script src="jquery.js"></script>

    <script src="main.js"></script>

  </head>

  <body>

  <div id="header">

    <div id="logo"></div>

    <div class="rounded infobox help-message" id="motd">

      Chat room implemented using

      <a href="http://code.google.com/p/mongoose" target="_blank">Mongoose</a>

      embeddable web server.

      This application was written for educational purposes demonstrating

      how web interface could be decoupled from the business logic. Not a

      single line of HTML is generated by the server, instead, server

      gives data to the client in JSON format.

    </div>

  </div>

  <div>

  <div id="middle">

    <div><center><span id="error" class="rounded"></span><center></div>

    <div id="menu">

      <div class="menu-item left-rounded menu-item-selected"

      	name="chat">Chat</div>

      <div class="menu-item left-rounded" name="settings">Settings</div>

    </div>

    <div id="content" class="rounded">

      <div id="chat" class="main">

        <div class="chat-window">

          <span class="top-rounded chat-title">Main room</span>

          <div class="bottom-rounded chat-content">

            <div class="message-list" id="mml">

            </div>

            <input type="text" size="40" class="message-input"></input>

            <span class="help-message">

              Type your message here and press enter</span>

          </div>

        </div>

      </div>

      <div id="settings" class="hidden main">

        <div>

          <span class="top-rounded chat-title">Settings</span>

          <div class="bottom-rounded chat-content">

	    <table>

	      <tr><td>Max messages to display:</td><td>blah blah</td></tr>

	      <tr><td>Text color:</td><td>blah blah</td></tr>

	    </table>

          </div>

        </div>

      </div>

    </div>

  </div>

  <div id="footer">

    Copyright © 2004-2010 by Sergey Lyubka

  </div>

  </body>

</html>

/*!

 * jQuery JavaScript Library v1.4.2

 * http://jquery.com/

 *

 * Copyright 2010, John Resig

 * Dual licensed under the MIT or GPL Version 2 licenses.

 * http://jquery.org/license

 *

 * Includes Sizzle.js

 * http://sizzlejs.com/

 * Copyright 2010, The Dojo Foundation

 * Released under the MIT, BSD, and GPL Licenses.

 *

 * Date: Sat Feb 13 22:33:48 2010 -0500

 */

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e&&e.document?e.document.compatMode==="CSS1Compat"&&e.document.documentElement["client"+b]||e.document.body["client"+b]:e.nodeType===9?Math.max(e.documentElement["client"+b],e.body["scroll"+b],e.documentElement["scroll"+b],e.body["offset"+b],e.documentElement["offset"+b]):f===w?c.css(e,d):this.css(d,typeof f==="string"?f:f+"px")}});A.jQuery=A.$=c})(window);

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"

  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 

<html xmlns="http://www.w3.org/1999/xhtml" lang="en" dir="ltr"> 

  <!-- This file is part of the  Mongoose project,

    http://code.google.com/p/mongoose -->

  <head>

    <title>Mongoose chat: login</title>

    <meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>

    <!--

      Note that this page is self-sufficient, it does not load any other

      CSS or Javascript file. This is done so because only this page is

      allowed for non-authorized users. If we want to load other files

      from the frontend, we need to change backend code to allow those

      for non-authorized users. See chat.c :: must_authorize() function.

    -->

  </head>

  <script>

    window.onload = function() {

      // Set correct action for the login form. We assume that the SSL port

      // is the next one to insecure one.

      var httpsPort = location.protocol.match(/https/) ? location.port :

        parseInt(location.port) + 1;

      document.forms[0].action = 'https://' + location.hostname + ':' +

        httpsPort + '/authorize';

    };

  </script>

  <body>

    <center>

      <h2>Mongoose chat server login</h2>

      <div style="max-width: 30em;">

        Username and password can be any non-empty strings.

      </div>

      <br/>

      <form>

        <input type="text" name="user"></input><br/>

        <input type="text" name="password"></input><br/>

        <input type="submit" value="Login"></input>

      </form>

    </center>

  </body>

</html>

// This file is part of Mongoose project, http://code.google.com/p/mongoose

var chat = {

  // Backend URL, string.

  // 'http://backend.address.com' or '' if backend is the same as frontend

  backendUrl: '',

  maxVisibleMessages: 10,

  errorMessageFadeOutTimeoutMs: 2000,

  errorMessageFadeOutTimer: null,

  lastMessageId: 0,

  getMessagesIntervalMs: 1000,

};

chat.normalizeText = function(text) {

  return text.replace('<', '&lt;').replace('>', '&gt;');

};

chat.refresh = function(data) {

  $.each(data, function(index, entry) {

    var row = $('<div>').addClass('message-row').appendTo('#mml');

    var timestamp = (new Date(entry.timestamp * 1000)).toLocaleTimeString();

    $('<span>')

      .addClass('message-timestamp')

      .html('[' + timestamp + ']')

      .prependTo(row);

    $('<span>')

      .addClass('message-user')

      .addClass(entry.user ? '' : 'message-user-server')

      .html(chat.normalizeText((entry.user || '[server]') + ':'))

      .appendTo(row);

    $('<span>')

      .addClass('message-text')

      .addClass(entry.user ? '' : 'message-text-server')

      .html(chat.normalizeText(entry.text))

      .appendTo(row);

    chat.lastMessageId = Math.max(chat.lastMessageId, entry.id) + 1;

  });

  // Keep only chat.maxVisibleMessages, delete older ones.

  while ($('#mml').children().length > chat.maxVisibleMessages) {

    $('#mml div:first-child').remove();

  }

};

chat.getMessages = function() {

  $.ajax({

    dataType: 'jsonp',

    url: chat.backendUrl + '/ajax/get_messages',

    data: {last_id: chat.lastMessageId},

    success: chat.refresh,

    error: function() {

    },

  });

  window.setTimeout(chat.getMessages, chat.getMessagesIntervalMs);

};

chat.handleMenuItemClick = function(ev) {

  $('.menu-item').removeClass('menu-item-selected');  // Deselect menu buttons

  $(this).addClass('menu-item-selected');  // Select clicked button

  $('.main').addClass('hidden');  // Hide all main windows

  $('#' + $(this).attr('name')).removeClass('hidden');  // Show main window

};

chat.showError = function(message) {

  $('#error').html(message).fadeIn('fast');

  window.clearTimeout(chat.errorMessageFadeOutTimer);

  chat.errorMessageFadeOutTimer = window.setTimeout(function() {

      $('#error').fadeOut('slow');

  }, chat.errorMessageFadeOutTimeoutMs);

};

chat.handleMessageInput = function(ev) {

  var input = ev.target;

  if (ev.keyCode != 13 || !input.value)

    return;

  //input.disabled = true;

  $.ajax({

    dataType: 'jsonp',

    url: chat.backendUrl + '/ajax/send_message',

    data: {text: input.value},

    success: function(ev) {

      input.value = '';

      input.disabled = false;

      chat.getMessages();

    },

    error: function(ev) {

      chat.showError('Error sending message');

      input.disabled = false;

    },

  });

};

$(document).ready(function() {

  $('.menu-item').click(chat.handleMenuItemClick);

  $('.message-input').keypress(chat.handleMessageInput);

  chat.getMessages();

});

// vim:ts=2:sw=2:et

/*

 * vim:ts=2:sw=2:et:ai

 */

body {

  font: 13px Arial; margin: 0.5em 1em;

}

#logo {

  background: url('logo.png') no-repeat ;

  width: 160px;

  height: 40px;

  float: left;

}

td {

  text-align: left;

}

#motd {

  margin-left: 170px;

}

.infobox {

  background: #eed;

  padding: 1px 1em;

}

.help-message {

  color: #aaa;

}

#middle {

  margin: 0.5em 0;

}

#error {

  background: #c44;

  color: white;

  font-weight: bold;

}

#content, .menu-item-selected, .chat-title, .chat-content {

  background: #c3d9ff;

}

#content {

  overflow: hidden;

  min-height: 7em;

  padding: 1em;

}

.chat-title {

  padding: 1px 1ex;

}

.chat-content {

 padding: 1ex;

}

.chat-window {

}

.message-row {

  margin: 2px;

  border-bottom: 1px solid #bbb;

}

.message-timestamp {

  color: #484;

}

.message-user {

  margin-left: 0.5em;