Re: python xmlrpc client with ssl client certificates and standard modules
> My next task is how to find out at the client side, that the server > certificate is a properly signed one. As Heikki says, you'll need Python 2.6 for that. You'll probably need to extend your transport implementation. Regards, Martin -- http://mail.python.org/mailman/listinfo/python-list
Re: python xmlrpc client with ssl client certificates and standard modules
News123 wrote: > This will probably work, but it requires the module M2Crypto. > > In order to avoid installing M2Crypto an all hosts that want to run the > script I wondered, whether there is no other solution. > > I can do xmlrpc over ssl WITHOUT certificates with following code: [...] Please note that if you just use the stdlib it is not secure out of the box. With Python 2.6 and the ssl module you can make it so, but it requires some work on your part. See for example http://www.heikkitoivonen.net/blog/2008/10/14/ssl-in-python-26/ -- Heikki Toivonen - http://heikkitoivonen.net -- http://mail.python.org/mailman/listinfo/python-list
Re: python xmlrpc client with ssl client certificates and standard modules
Hi Martin,
Thanks a lot for your reply.
It helped me to find the correct solution.
Unfortunaltely xmlrpclib.ServerProxy does not allow a host tuple, but
just a uri.
So the simplest solution, that I found is to create a custom transport
import xmlrpclib
class SafeTransportWithCert(xmlrpclib.SafeTransport):
__cert_file = DFLT_CERTFILE
__key_file = DFLT_KEYFILE
def make_connection(self,host):
host_with_cert = (host, {
'key_file' : self.__key_file,
'cert_file' : self.__cert_file
} )
return \
xmlrpclib.SafeTransport.make_connection(
self,host_with_cert)
transport = SafeTransportWithCert()
server = xmlrpclib.ServerProxy(server_url,
transport = transport)
rslt = server.mymethod(args)
Perfect.
Now the server can ensure, that only certified clients connect.
My next task is how to find out at the client side, that the server
certificate is a properly signed one.
bye
N
Martin v. Loewis wrote:
>> I can do xmlrpc over ssl WITHOUT certificates with following code:
>>
>> import xmlrpclib
>> server_url = 'https://myserver'
>> server = xmlrpclib.Server(server_url);
>>
>>
>> and I can perform a https get request WITH certificates with below snippet:
>>
>> import httplib
>> conn = httplib.HTTPSConnection(
>> HOSTNAME,
>> key_file = KEYFILE,
>> cert_file = CERTFILE
>> )
>> conn.putrequest('GET', '/')
>> conn.endheaders()
>> response = conn.getresponse()
>> print response.read()
>>
>>
>> I'm just lost of how to 'combine' both.
>
> In this case, read through the source of xmlrpclib:
>
> a) SafeTransport receives x509 parameters from get_host_info
> b) get_host_info supports a case where host is a tuple host, x509
>
> So, without testing:
>
> server = xmlrpclib.Server((server_url, {'key_file': KEYFILE,
> 'cert_file': CERTFILE}))
>
> Please do read the code before trying this out.
>
> HTH,
> Martin
--
http://mail.python.org/mailman/listinfo/python-list
Re: python xmlrpc client with ssl client certificates and standard modules
> I can do xmlrpc over ssl WITHOUT certificates with following code:
>
> import xmlrpclib
> server_url = 'https://myserver'
> server = xmlrpclib.Server(server_url);
>
>
> and I can perform a https get request WITH certificates with below snippet:
>
> import httplib
> conn = httplib.HTTPSConnection(
> HOSTNAME,
> key_file = KEYFILE,
> cert_file = CERTFILE
> )
> conn.putrequest('GET', '/')
> conn.endheaders()
> response = conn.getresponse()
> print response.read()
>
>
> I'm just lost of how to 'combine' both.
In this case, read through the source of xmlrpclib:
a) SafeTransport receives x509 parameters from get_host_info
b) get_host_info supports a case where host is a tuple host, x509
So, without testing:
server = xmlrpclib.Server((server_url, {'key_file': KEYFILE,
'cert_file': CERTFILE}))
Please do read the code before trying this out.
HTH,
Martin
--
http://mail.python.org/mailman/listinfo/python-list
Re: python xmlrpc client with ssl client certificates and standard modules
Hi Massimo,
I'm still a litle confused:
My setup:
server host:
apache, php with an xmlrpc server interface.
no python installed.
multiple client hosts (linux / windows only default python installed)
---
an existing python script performing an xmlrpc call to the server host.
The current working (without certificates) code snippet is:
import xmlrpclib
server_url = 'https://myserver'
server = xmlrpclib.Server(server_url);
result = server.myfunction(args)
The whole setup is working as long as no client certificates are imposed
by the server.
The whole setup is not working as soon as the server is configured to
accept only a given set of SSL-client certificates.
My question is how to change above four line code snippet, such, that a
client certificate will be sent to the xmlrpc server
asuming the variables
CLIENT_KEY_FILE and CLIENT_CRT_FILE are defined and pointing to the
client certificate files.
I hope to have more time tomorrow to check out the option,
that I found and the option, that you suggest.
option 1:
http://www.cs.technion.ac.il/~danken/xmlrpc-ssl.html
( with non standard py module M2Crypto )
option 2:
or web2py, which at first (so far no second) glance seems more
to be targeted at implementing server side application with ajax
or the client side.
thanks again and bye
N
mdipierro wrote:
> If it is a client problem than web2py will be on help.
>
> If your server is written already you may be able to use it with the
> ssl cherrypy wsgi server (the one that web2py uses) and you do not
> need web2py at all.
>
> Massimo
>
> On Jan 4, 3:38 am, News123 wrote:
>> Thanks for your answer.
>>
>> I'll look at web2py.
>>
>> However web2py seems to address the xmlrpc server (at least in your
>> example). The xmlrpc server application exists alerady and requires a
>> client certificate.
>>
>> The client example doesn't seem to be using a certificate.
>>
>> So I'll be reading a little into web2py.
>>
>> bye
>>
>> N
>>
>> mdipierro wrote:
>>> xmlrpc acts at the application layer and ssl at the transport layer so
>>> they can inter operate easily as long as you do not use the
>>> certificate to authenticate the client but only validate the server
>>> and encrypt data (which you can also do but it is more complicated)
>>> One option for you is to use web2py which include an xmlrpc server
>>> that uses a wsgi ssl enabled web server.
>>> Here is how:
>>> 1) Install web2py
>>> 2) Visithttp://127.0.0.1:8000/adminand create a new application from
>>> the web based IDE
>>> 3) create your web service for example, in a controller default.py
>>> @service.xmlrpc
>>> def add(a,b): return int(a)+int(b)
>>> 4) Restart web2py with
>>> python web2py.py -a ADMIN_PASSWD -c SSL_CERTIFICATE -k
>>> SSL_PRIVATE_KEY -i 0.0.0.0 -p 443
>>> 5) You can now access the service from any Python program:
>>> >>> import xmlrpclib
>>> >>> server_url = 'https://myserver:443/yourapp/default/call/
>>> xmlrpc'
>>> >>> server = xmlrpclib.Server(server_url)
>>> >>> print server.add(3,4)
>>> 7
>>> Hope this helps.
>>> On Jan 3, 8:12 pm, News123 wrote:
Hi,
I was googling fot quite some time and was not really succesfull.
I found one solution, which I will try soon.
It ishttp://www.cs.technion.ac.il/~danken/xmlrpc-ssl.html
(found
inhttp://hamakor.org.il/pipermail/python-il/2008-February/29.html)
This will probably work, but it requires the module M2Crypto.
In order to avoid installing M2Crypto an all hosts that want to run the
script I wondered, whether there is no other solution.
I can do xmlrpc over ssl WITHOUT certificates with following code:
import xmlrpclib
server_url = 'https://myserver'
server = xmlrpclib.Server(server_url);
and I can perform a https get request WITH certificates with below snippet:
import httplib
conn = httplib.HTTPSConnection(
HOSTNAME,
key_file = KEYFILE,
cert_file = CERTFILE
)
conn.putrequest('GET', '/')
conn.endheaders()
response = conn.getresponse()
print response.read()
I'm just lost of how to 'combine' both.
Thanks in advance for any suggestions / hints
N
>>
>
--
http://mail.python.org/mailman/listinfo/python-list
Re: python xmlrpc client with ssl client certificates and standard modules
If it is a client problem than web2py will be on help.
If your server is written already you may be able to use it with the
ssl cherrypy wsgi server (the one that web2py uses) and you do not
need web2py at all.
Massimo
On Jan 4, 3:38 am, News123 wrote:
> Thanks for your answer.
>
> I'll look at web2py.
>
> However web2py seems to address the xmlrpc server (at least in your
> example). The xmlrpc server application exists alerady and requires a
> client certificate.
>
> The client example doesn't seem to be using a certificate.
>
> So I'll be reading a little into web2py.
>
> bye
>
> N
>
> mdipierro wrote:
> > xmlrpc acts at the application layer and ssl at the transport layer so
> > they can inter operate easily as long as you do not use the
> > certificate to authenticate the client but only validate the server
> > and encrypt data (which you can also do but it is more complicated)
>
> > One option for you is to use web2py which include an xmlrpc server
> > that uses a wsgi ssl enabled web server.
>
> > Here is how:
>
> > 1) Install web2py
> > 2) Visithttp://127.0.0.1:8000/adminand create a new application from
> > the web based IDE
> > 3) create your web service for example, in a controller default.py
>
> > �...@service.xmlrpc
> > def add(a,b): return int(a)+int(b)
>
> > 4) Restart web2py with
>
> > python web2py.py -a ADMIN_PASSWD -c SSL_CERTIFICATE -k
> > SSL_PRIVATE_KEY -i 0.0.0.0 -p 443
>
> > 5) You can now access the service from any Python program:
>
> > >>> import xmlrpclib
> > >>> server_url = 'https://myserver:443/yourapp/default/call/
> > xmlrpc'
> > >>> server = xmlrpclib.Server(server_url)
> > >>> print server.add(3,4)
> > 7
>
> > Hope this helps.
>
> > On Jan 3, 8:12 pm, News123 wrote:
> >> Hi,
>
> >> I was googling fot quite some time and was not really succesfull.
>
> >> I found one solution, which I will try soon.
> >> It ishttp://www.cs.technion.ac.il/~danken/xmlrpc-ssl.html
> >> (found
> >> inhttp://hamakor.org.il/pipermail/python-il/2008-February/29.html)
>
> >> This will probably work, but it requires the module M2Crypto.
>
> >> In order to avoid installing M2Crypto an all hosts that want to run the
> >> script I wondered, whether there is no other solution.
>
> >> I can do xmlrpc over ssl WITHOUT certificates with following code:
>
> >> import xmlrpclib
> >> server_url = 'https://myserver'
> >> server = xmlrpclib.Server(server_url);
>
> >> and I can perform a https get request WITH certificates with below snippet:
>
> >> import httplib
> >> conn = httplib.HTTPSConnection(
> >> HOSTNAME,
> >> key_file = KEYFILE,
> >> cert_file = CERTFILE
> >> )
> >> conn.putrequest('GET', '/')
> >> conn.endheaders()
> >> response = conn.getresponse()
> >> print response.read()
>
> >> I'm just lost of how to 'combine' both.
>
> >> Thanks in advance for any suggestions / hints
>
> >> N
>
>
--
http://mail.python.org/mailman/listinfo/python-list
Re: python xmlrpc client with ssl client certificates and standard modules
Thanks for your answer.
I'll look at web2py.
However web2py seems to address the xmlrpc server (at least in your
example). The xmlrpc server application exists alerady and requires a
client certificate.
The client example doesn't seem to be using a certificate.
So I'll be reading a little into web2py.
bye
N
mdipierro wrote:
> xmlrpc acts at the application layer and ssl at the transport layer so
> they can inter operate easily as long as you do not use the
> certificate to authenticate the client but only validate the server
> and encrypt data (which you can also do but it is more complicated)
>
> One option for you is to use web2py which include an xmlrpc server
> that uses a wsgi ssl enabled web server.
>
> Here is how:
>
> 1) Install web2py
> 2) Visit http://127.0.0.1:8000/admin and create a new application from
> the web based IDE
> 3) create your web service for example, in a controller default.py
>
> @service.xmlrpc
> def add(a,b): return int(a)+int(b)
>
> 4) Restart web2py with
>
> python web2py.py -a ADMIN_PASSWD -c SSL_CERTIFICATE -k
> SSL_PRIVATE_KEY -i 0.0.0.0 -p 443
>
> 5) You can now access the service from any Python program:
>
> >>> import xmlrpclib
> >>> server_url = 'https://myserver:443/yourapp/default/call/
> xmlrpc'
> >>> server = xmlrpclib.Server(server_url)
> >>> print server.add(3,4)
> 7
>
> Hope this helps.
>
>
>
> On Jan 3, 8:12 pm, News123 wrote:
>> Hi,
>>
>> I was googling fot quite some time and was not really succesfull.
>>
>> I found one solution, which I will try soon.
>> It ishttp://www.cs.technion.ac.il/~danken/xmlrpc-ssl.html
>> (found inhttp://hamakor.org.il/pipermail/python-il/2008-February/29.html)
>>
>> This will probably work, but it requires the module M2Crypto.
>>
>> In order to avoid installing M2Crypto an all hosts that want to run the
>> script I wondered, whether there is no other solution.
>>
>> I can do xmlrpc over ssl WITHOUT certificates with following code:
>>
>> import xmlrpclib
>> server_url = 'https://myserver'
>> server = xmlrpclib.Server(server_url);
>>
>> and I can perform a https get request WITH certificates with below snippet:
>>
>> import httplib
>> conn = httplib.HTTPSConnection(
>> HOSTNAME,
>> key_file = KEYFILE,
>> cert_file = CERTFILE
>> )
>> conn.putrequest('GET', '/')
>> conn.endheaders()
>> response = conn.getresponse()
>> print response.read()
>>
>> I'm just lost of how to 'combine' both.
>>
>> Thanks in advance for any suggestions / hints
>>
>> N
>
--
http://mail.python.org/mailman/listinfo/python-list
Re: python xmlrpc client with ssl client certificates and standard modules
xmlrpc acts at the application layer and ssl at the transport layer so
they can inter operate easily as long as you do not use the
certificate to authenticate the client but only validate the server
and encrypt data (which you can also do but it is more complicated)
One option for you is to use web2py which include an xmlrpc server
that uses a wsgi ssl enabled web server.
Here is how:
1) Install web2py
2) Visit http://127.0.0.1:8000/admin and create a new application from
the web based IDE
3) create your web service for example, in a controller default.py
@service.xmlrpc
def add(a,b): return int(a)+int(b)
4) Restart web2py with
python web2py.py -a ADMIN_PASSWD -c SSL_CERTIFICATE -k
SSL_PRIVATE_KEY -i 0.0.0.0 -p 443
5) You can now access the service from any Python program:
>>> import xmlrpclib
>>> server_url = 'https://myserver:443/yourapp/default/call/
xmlrpc'
>>> server = xmlrpclib.Server(server_url)
>>> print server.add(3,4)
7
Hope this helps.
On Jan 3, 8:12 pm, News123 wrote:
> Hi,
>
> I was googling fot quite some time and was not really succesfull.
>
> I found one solution, which I will try soon.
> It ishttp://www.cs.technion.ac.il/~danken/xmlrpc-ssl.html
> (found inhttp://hamakor.org.il/pipermail/python-il/2008-February/29.html)
>
> This will probably work, but it requires the module M2Crypto.
>
> In order to avoid installing M2Crypto an all hosts that want to run the
> script I wondered, whether there is no other solution.
>
> I can do xmlrpc over ssl WITHOUT certificates with following code:
>
> import xmlrpclib
> server_url = 'https://myserver'
> server = xmlrpclib.Server(server_url);
>
> and I can perform a https get request WITH certificates with below snippet:
>
> import httplib
> conn = httplib.HTTPSConnection(
> HOSTNAME,
> key_file = KEYFILE,
> cert_file = CERTFILE
> )
> conn.putrequest('GET', '/')
> conn.endheaders()
> response = conn.getresponse()
> print response.read()
>
> I'm just lost of how to 'combine' both.
>
> Thanks in advance for any suggestions / hints
>
> N
--
http://mail.python.org/mailman/listinfo/python-list
python xmlrpc client with ssl client certificates and standard modules
Hi,
I was googling fot quite some time and was not really succesfull.
I found one solution, which I will try soon.
It is
http://www.cs.technion.ac.il/~danken/xmlrpc-ssl.html
(found in
http://hamakor.org.il/pipermail/python-il/2008-February/29.html )
This will probably work, but it requires the module M2Crypto.
In order to avoid installing M2Crypto an all hosts that want to run the
script I wondered, whether there is no other solution.
I can do xmlrpc over ssl WITHOUT certificates with following code:
import xmlrpclib
server_url = 'https://myserver'
server = xmlrpclib.Server(server_url);
and I can perform a https get request WITH certificates with below snippet:
import httplib
conn = httplib.HTTPSConnection(
HOSTNAME,
key_file = KEYFILE,
cert_file = CERTFILE
)
conn.putrequest('GET', '/')
conn.endheaders()
response = conn.getresponse()
print response.read()
I'm just lost of how to 'combine' both.
Thanks in advance for any suggestions / hints
N
--
http://mail.python.org/mailman/listinfo/python-list
