Yesterday, the Fennec team release a new alpha of the Fennec Firefox browser for Android and Nokia's Maemo. It has some very interesting stuff, like the sync between desktop and mobile device, addons, save to PDF and some extra.. Lookd promising, but, at least right now, I'm not installing it on my Android. Why??
It is alpha and some stuff doesn't work like it should, just check the video Pinch Zoom is really choppy..
I'm pretty happy with Android's default browser. Opera Mini didn't make me change it as my default browser (Maybe Opera Mobile would do) and an alpha version of Fennec definitively will not replace it.
Great news, NiTDroid, is trying to port Android to the Nokia tablets, currently they have a port for the Nokia N900 and the N8x0.. On the video above, you can see it in action over a N900. Even when it looks a bit unresponsive, a more optimized build may be a perfect replacement for Maemo.
The project is still work in progress, but may be suitable some day for a daily usage.
The trick is this, set nautilus to open files with christine, if christine si already opened, when nautilus launch christine and pass the file as argument christine will detect via dbus de running instance of christine, then, will send via dbus the name of the file to open :-).
Just to let you know that Christine 0.7.0 Beta 1 has been released. This release include several improvements over Christine 0.6.1 and fixes some problems with the win32 build. The full you can read the full changelog Here.
This is christine running with the new webservice plugin :-). This plugin still need some test, and haz just a couple of services like set_location, play and stop. This will let you control Christine or get some information from other programs.
This post is about something I did on ICTC, we are developing some applications that communicate with each others on over the network and we thought on compressed XMLRPC. I have been looking about this on Google, but didn't really found something. So, I try by myself and this is the result.
First, allow me to explain a bit more about xmlrpc. XMLRPC is nothing more than a remote call using the HTTP protocol the POST method and XML as content, then, the server do its work and return something in the same way. THen the client parses this xml and create the result in a native way. Just like if that method where in your program. This offer a language independece (the server may be written in some language and several clients in many other languages).
Then, implementing compressed xml should not be that difficult, I mean.. HTTP support the "Accept-Encoding" header and that should do the job. But hey... xmlrpclib does not include gzip support, so, we are going to do it.
The server part should subclass SimpleXMLRPCServer and in the constructor we are going to create a inner class that will be a request Handler, this handler is based on SimpleXMLRCPRequestHandler and implements the do_POST method, this method is called everytime something is sent to the server (on every call).
In do_POST method we are responsible for fetching the data, decompress it, parse it, handle the response and then send the reply to the client. This isn't so hard (check the code). The important part here is that we check for the "accept-encoding" header and that the vale of that header (if exists) is "gzip", if this is true then use zlib to decompress the data and when we have the result of the call, compress it using zlib and send it to the client.
def do_POST(self): ifself.headers.has_key('accept-encoding')and \ self.headers['accept-encoding'] == 'gzip': # check if the path ir right ifnotself.is_rpc_path_valid(): self.report_404() return try: #Try to get the data
max_chunk_size = 10*1024*1024
size_remaining = int(self.headers["content-length"])
L = [] while size_remaining>0:
chunk_size = min(size_remaining, max_chunk_size)
L.append(self.rfile.read(chunk_size))
size_remaining -= len(L[-1])
data = ''.join(L)
data = zlib.decompress(data)#Decompress
response = self.server._marshaled_dispatch(
data, getattr(self, '_dispatch', None) ) except: #Should be good to registre the exception somewhere pass else: #We have an answer... #Let's compress it
response = zlib.compress(response) self.send_response(200) self.send_header("Content-type", "text/xml") self.send_header("Content-length", str(len(response))) #As the call was compressed, then we compress the #Answer too. Be sure to set the compressed header. self.send_header("Accept-Encoding","gzip") self.end_headers() self.wfile.write(response) #Close the connection self.wfile.flush() self.connection.shutdown(1) else: return SimpleXMLRPCRequestHandler.do_POST(self)
This take us the the other part of the call, the client. The client must implement gzip compression too. The client part is a bit simplier, you just have to subclass xmlrpclib's Transport and and in the "request" method compress the request_body before sending it. Obviously you have to append the "accept-encoding" header to the http connection. Once you have the result you have to check for the "accept-encoding" header too, if it is there, decompress using zlib's methods.
def request(self, host, handler, request_body, verbose=0): '''
Encargado de manejar los request, envia los datos y recibe
las repuestas, por lo que aqui se hace la compresion de datos
y posteriormente se envian los datos recibidos a
la funcion self._parse_response o self._parse_gzipped_response
de acuerdo al caso.
Mas informacion:
http://docs.python.org/library/xmlrpclib.html
'''
h = self.make_connection(host) if verbose:
h.set_debuglevel(1) self.send_request(h, handler, request_body) self.send_host(h, host) self.send_user_agent(h) #Compress if GZIP_ENCODED is true if GZIP_ENCODED: #Don't forget to set the header!
h.putheader('Accept-Encoding','gzip')
request_body = zlib.compress(request_body) self.send_content(h, request_body)
errcode, errmsg, headers = h.getreply() if errcode != 200: raise ProtocolError(
host + handler,
errcode, errmsg,
headers ) self.verbose = verbose try:
sock = h._conn.sock exceptAttributeError:
sock = None # Revisar si la respuesta incluye los encabezados de # compresion y si este es gzip if headers.has_key('accept-encoding')and \
headers['accept-encoding'] == 'gzip': returnself._parse_gzipped_response(h.getfile(), sock) returnself._parse_response(h.getfile(), sock)
