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r e-d* e0d Y nX W dQ R X dS ),a XML-RPC Servers.
This module can be used to create simple XML-RPC servers
by creating a server and either installing functions, a
class instance, or by extending the SimpleXMLRPCServer
class.
It can also be used to handle XML-RPC requests in a CGI
environment using CGIXMLRPCRequestHandler.
The Doc* classes can be used to create XML-RPC servers that
serve pydoc-style documentation in response to HTTP
GET requests. This documentation is dynamically generated
based on the functions and methods registered with the
server.
A list of possible usage patterns follows:
1. Install functions:
server = SimpleXMLRPCServer(("localhost", 8000))
server.register_function(pow)
server.register_function(lambda x,y: x+y, 'add')
server.serve_forever()
2. Install an instance:
class MyFuncs:
def __init__(self):
# make all of the sys functions available through sys.func_name
import sys
self.sys = sys
def _listMethods(self):
# implement this method so that system.listMethods
# knows to advertise the sys methods
return list_public_methods(self) + \
['sys.' + method for method in list_public_methods(self.sys)]
def pow(self, x, y): return pow(x, y)
def add(self, x, y) : return x + y
server = SimpleXMLRPCServer(("localhost", 8000))
server.register_introspection_functions()
server.register_instance(MyFuncs())
server.serve_forever()
3. Install an instance with custom dispatch method:
class Math:
def _listMethods(self):
# this method must be present for system.listMethods
# to work
return ['add', 'pow']
def _methodHelp(self, method):
# this method must be present for system.methodHelp
# to work
if method == 'add':
return "add(2,3) => 5"
elif method == 'pow':
return "pow(x, y[, z]) => number"
else:
# By convention, return empty
# string if no help is available
return ""
def _dispatch(self, method, params):
if method == 'pow':
return pow(*params)
elif method == 'add':
return params[0] + params[1]
else:
raise ValueError('bad method')
server = SimpleXMLRPCServer(("localhost", 8000))
server.register_introspection_functions()
server.register_instance(Math())
server.serve_forever()
4. Subclass SimpleXMLRPCServer:
class MathServer(SimpleXMLRPCServer):
def _dispatch(self, method, params):
try:
# We are forcing the 'export_' prefix on methods that are
# callable through XML-RPC to prevent potential security
# problems
func = getattr(self, 'export_' + method)
except AttributeError:
raise Exception('method "%s" is not supported' % method)
else:
return func(*params)
def export_add(self, x, y):
return x + y
server = MathServer(("localhost", 8000))
server.serve_forever()
5. CGI script:
server = CGIXMLRPCRequestHandler()
server.register_function(pow)
server.handle_request()
)Faultdumpsloads gzip_encode gzip_decode)BaseHTTPRequestHandler)partial) signatureNTc C sJ |r| d}n|g}x.|D ]&}|dr8td| q t| |} q W | S )aG resolve_dotted_attribute(a, 'b.c.d') => a.b.c.d
Resolves a dotted attribute name to an object. Raises
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If the optional allow_dotted_names argument is false, dots are not
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._z(attempt to access private attribute "%s")split
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Zd ddZ dd Z
dd Z dd Z dd Z
dd ZdS ) SimpleXMLRPCDispatchera& Mix-in class that dispatches XML-RPC requests.
This class is used to register XML-RPC method handlers
and then to dispatch them. This class doesn't need to be
instanced directly when used by SimpleXMLRPCServer but it
can be instanced when used by the MultiPathXMLRPCServer
FNc C s& i | _ d | _|| _|pd| _|| _d S )Nzutf-8)funcsinstance
allow_noneencodinguse_builtin_types)selfr r! r" r r r __init__ s
z SimpleXMLRPCDispatcher.__init__c C s || _ || _dS )a Registers an instance to respond to XML-RPC requests.
Only one instance can be installed at a time.
If the registered instance has a _dispatch method then that
method will be called with the name of the XML-RPC method and
its parameters as a tuple
e.g. instance._dispatch('add',(2,3))
If the registered instance does not have a _dispatch method
then the instance will be searched to find a matching method
and, if found, will be called. Methods beginning with an '_'
are considered private and will not be called by
SimpleXMLRPCServer.
If a registered function matches an XML-RPC request, then it
will be called instead of the registered instance.
If the optional allow_dotted_names argument is true and the
instance does not have a _dispatch method, method names
containing dots are supported and resolved, as long as none of
the name segments start with an '_'.
*** SECURITY WARNING: ***
Enabling the allow_dotted_names options allows intruders
to access your module's global variables and may allow
intruders to execute arbitrary code on your machine. Only
use this option on a secure, closed network.
N)r r )r# r r r r r register_instance s !z(SimpleXMLRPCDispatcher.register_instancec C s2 |dkrt | j|dS |dkr$|j}|| j|< |S )zRegisters a function to respond to XML-RPC requests.
The optional name argument can be used to set a Unicode name
for the function.
N)name)r register_function__name__r )r# Zfunctionr& r r r r' s
z(SimpleXMLRPCDispatcher.register_functionc C s | j | j| j| jd dS )zRegisters the XML-RPC introspection methods in the system
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)zsystem.listMethodszsystem.methodSignaturezsystem.methodHelpN)r updatesystem_listMethodssystem_methodSignaturesystem_methodHelp)r# r r r register_introspection_functions s
z7SimpleXMLRPCDispatcher.register_introspection_functionsc C s | j d| ji dS )zRegisters the XML-RPC multicall method in the system
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r } zt|| j| jd}W dd}~X Y nN t \}} }
z$ttdd|| f | j| jd}W dd } } }
X Y nX | | jdS ) a Dispatches an XML-RPC method from marshalled (XML) data.
XML-RPC methods are dispatched from the marshalled (XML) data
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marshalled data. For backwards compatibility, a dispatch
function can be provided as an argument (see comment in
SimpleXMLRPCRequestHandler.do_POST) but overriding the
existing method through subclassing is the preferred means
of changing method dispatch behavior.
)r" N )Zmethodresponser r! )r r! z%s:%s)r! r xmlcharrefreplace)
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This server does NOT support system.methodSignature.zsignatures not supportedr )r# method_namer r r r+ / s z-SimpleXMLRPCDispatcher.system_methodSignaturec C s d}|| j kr| j | }nX| jdk rrt| jdr<| j|S t| jdsryt| j|| j}W n tk
rp Y nX |dkr~dS t|S dS )zsystem.methodHelp('add') => "Adds two integers together"
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C s g }x|D ]}|d }|d }y| | ||g W q
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Z
methodNamer9 ) faultCode faultStringNr0 z%s:%s)appendr2 r rL rM r3 r4 )
r# Z call_listresultsZcallrG r9 r< r= r> r? r r r r. [ s$
z'SimpleXMLRPCDispatcher.system_multicallc C s y| j | }W n tk
r" Y n X |dk r4|| S td| | jdk rt| jdrd| j||S yt| j|| j}W n tk
r Y nX |dk r|| S td| dS )a Dispatches the XML-RPC method.
XML-RPC calls are forwarded to a registered function that
matches the called XML-RPC method name. If no such function
exists then the call is forwarded to the registered instance,
if available.
If the registered instance has a _dispatch method then that
method will be called with the name of the XML-RPC method and
its parameters as a tuple
e.g. instance._dispatch('add',(2,3))
If the registered instance does not have a _dispatch method
then the instance will be searched to find a matching method
and, if found, will be called.
Methods beginning with an '_' are considered private and will
not be called.
Nz method "%s" is not supportedr2 ) r KeyError Exceptionr rD r2 r r r )r# r: r9 funcr r r r2 s(
z SimpleXMLRPCDispatcher._dispatch)FNF)F)NN)NN)r(
__module__ __qualname____doc__r$ r% r' r- r/ r@ r* r+ r, r. r2 r r r r r s
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$r c @ sf e Zd ZdZdZdZdZdZe dej
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Zd d Zd
d Zdd ZdddZdS )SimpleXMLRPCRequestHandlerzSimple XML-RPC request handler class.
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)/z/RPC2ix Tz
\s* ([^\s;]+) \s* #content-coding
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c C sb i }| j dd}xJ|dD ]<}| j|}|r |d}|rHt|nd}|||d< q W |S )NzAccept-EncodingrI , g ?r0 )headersgetr aepatternmatchgroupfloat)r# rZaeer^ vr r r accept_encodings s
z+SimpleXMLRPCRequestHandler.accept_encodingsc C s | j r| j| j kS dS d S )NT) rpc_pathsr8 )r# r r r is_rpc_path_valid s z,SimpleXMLRPCRequestHandler.is_rpc_path_validc
C s | s| dS yd}t| jd }g }x>|rjt||}| j|}|sNP || |t|d 8 }q.W d |}|
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Ni zcontent-lengthrX r2 i _send_traceback_headerz X-exceptionASCIIbackslashreplacez X-tracebackzContent-length0 z Content-typeztext/xmlgzipr zContent-Encoding) rf
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z"SimpleXMLRPCRequestHandler.do_POSTc C s | j dd }|dkr |S |dkrtyt|S tk
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Nzcontent-encodingZidentityrm i zencoding %r not supportedi zerror decoding gzip contentzContent-lengthrk ) r[ r\ lowerr r} rv
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text/plainzContent-length)rv rw rx rr r{ r~ r )r# r; r r r rn 5 s
z%SimpleXMLRPCRequestHandler.report_404-c C s | j jrt| || dS )z$Selectively log an accepted request.N)ru logRequestsr log_request)r# codesizer r r r > s z&SimpleXMLRPCRequestHandler.log_requestN)r r )r( rS rT rU re r| ZwbufsizeZdisable_nagle_algorithmrecompileVERBOSE
IGNORECASEr] rd rf r rt rn r r r r r rV s G rV c @ s. e Zd ZdZdZdZedddddfddZdS )SimpleXMLRPCServerag Simple XML-RPC server.
Simple XML-RPC server that allows functions and a single instance
to be installed to handle requests. The default implementation
attempts to dispatch XML-RPC calls to the functions or instance
installed in the server. Override the _dispatch method inherited
from SimpleXMLRPCDispatcher to change this behavior.
TFNc C s, || _ t| ||| tj| ||| d S )N)r r r$ socketserver TCPServer)r# addrrequestHandlerr r r! bind_and_activater" r r r r$ W s zSimpleXMLRPCServer.__init__)r( rS rT rU Zallow_reuse_addressrh rV r$ r r r r r D s r c @ s@ e Zd ZdZedddddfddZdd Zd d
Zd
d d ZdS )MultiPathXMLRPCServera\ Multipath XML-RPC Server
This specialization of SimpleXMLRPCServer allows the user to create
multiple Dispatcher instances and assign them to different
HTTP request paths. This makes it possible to run two or more
'virtual XML-RPC servers' at the same port.
Make sure that the requestHandler accepts the paths in question.
TFNc
C s2 t | ||||||| i | _|| _|p*d| _d S )Nzutf-8)r r$ dispatchersr r! )r# r r r r r! r r" r r r r$ h s
z MultiPathXMLRPCServer.__init__c C s || j |< |S )N)r )r# r8 Z
dispatcherr r r add_dispatcherr s
z$MultiPathXMLRPCServer.add_dispatcherc C s
| j | S )N)r )r# r8 r r r get_dispatcherv s z$MultiPathXMLRPCServer.get_dispatcherc C s| y| j | |||}W n^ t d d \}}z2ttdd||f | j| jd}|| jd}W d d }}X Y nX |S )N r0 z%s:%s)r! r r1 ) r r@ r3 r4 r r r! r r5 )r# r6 r7 r8 r; r= r> r r r r@ y s
z)MultiPathXMLRPCServer._marshaled_dispatch)NN) r( rS rT rU rV r$ r r r@ r r r r r ` s r c @ s4 e Zd ZdZd ddZdd Zdd Zd
d
d ZdS )CGIXMLRPCRequestHandlerz3Simple handler for XML-RPC data passed through CGI.FNc C s t | ||| d S )N)r r$ )r# r r! r" r r r r$ s z CGIXMLRPCRequestHandler.__init__c C sP | |}td tdt| t tj tjj| tjj dS )z Handle a single XML-RPC requestzContent-Type: text/xmlzContent-Length: %dN)r@ printrr r3 stdoutflushbufferr )r# request_textr; r r r
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z%CGIXMLRPCRequestHandler.handle_xmlrpcc C s d}t j| \}}tjj|||d }|d}td||f tdtjj tdt| t t j
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z"CGIXMLRPCRequestHandler.handle_getc C sz |dkr$t jdddkr$| nRytt jdd}W n ttfk
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NZREQUEST_METHODZGETZCONTENT_LENGTHrX ) osenvironr\ r ro r TypeErrorr3 stdinrq r )r# r lengthr r r handle_request s
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ServerHTMLDocz7Class used to generate pydoc HTML document for a serverNc C s^ |p| j }g }d}td}x |||} | s2P | \}
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|| _ dS )z3Set the documentation string for the entire server.N)r )r# r r r r set_server_documentationL s z+XMLRPCDocGenerator.set_server_documentationc C s
i }x| D ]}|| jkr(| j| }n| jdk rddg}t| jdrV| j||d< t| jdrr| j||d< t|}|dkr|}qt| jdsyt| j|}W q tk
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|}|t| j|S ) a generate_html_documentation() => html documentation for the server
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