# Mark Huang <mlhuang@cs.princeton.edu>
#
# Copyright (C) 2004-2006 The Trustees of Princeton University
-# $Id$
-# $URL$
#
-import sys
-import traceback
+from __future__ import print_function
+
+import os
import string
+import json
import xmlrpclib
# avoiding
# [#x7F-#x84], [#x86-#x9F], [#xFDD0-#xFDDF]
-invalid_xml_ascii = map(chr, range(0x0, 0x8) + [0xB, 0xC] + range(0xE, 0x1F))
-xml_escape_table = string.maketrans("".join(invalid_xml_ascii), "?" * len(invalid_xml_ascii))
+invalid_codepoints = range(0x0, 0x8) + [0xB, 0xC] + range(0xE, 0x1F)
+# broke with f24, somehow we get a unicode
+# as an incoming string to be translated
+str_xml_escape_table = \
+ string.maketrans("".join((chr(x) for x in invalid_codepoints)),
+ "?" * len(invalid_codepoints))
+# loosely inspired from
+# http://stackoverflow.com/questions/1324067/
+# how-do-i-get-str-translate-to-work-with-unicode-strings
+unicode_xml_escape_table = \
+ {invalid: u"?" for invalid in invalid_codepoints}
+
-def xmlrpclib_escape(s, replace = string.replace):
+def xmlrpclib_escape(s, replace=string.replace):
"""
xmlrpclib does not handle invalid 7-bit control characters. This
function augments xmlrpclib.escape, which by default only replaces
s = replace(s, ">", ">",)
# Replace invalid 7-bit control characters with '?'
- return s.translate(xml_escape_table)
+ if isinstance(s, str):
+ return s.translate(str_xml_escape_table)
+ else:
+ return s.translate(unicode_xml_escape_table)
+
+
+def test_xmlrpclib_escape():
+ inputs = [
+ # full ASCII
+ "".join((chr(x) for x in range(128))),
+ # likewise but as a unicode string up to 256
+ u"".join((unichr(x) for x in range(256))),
+ ]
+ for input in inputs:
+ print("==================== xmlrpclib_escape INPUT")
+ print(type(input), '->', input)
+ print("==================== xmlrpclib_escape OUTPUT")
+ print(xmlrpclib_escape(input))
+
def xmlrpclib_dump(self, value, write):
"""
if isinstance(value, Type):
f(*args)
return
- raise TypeError, "cannot marshal %s objects" % type(value)
+ raise TypeError("cannot marshal %s objects" % type(value))
else:
f(*args)
+
# You can't hide from me!
xmlrpclib.Marshaller._Marshaller__dump = xmlrpclib_dump
from PLC.Config import Config
from PLC.Faults import *
import PLC.Methods
-import PLC.Legacy
import PLC.Accessors
+
def import_deep(name):
mod = __import__(name)
components = name.split('.')
mod = getattr(mod, comp)
return mod
+
class PLCAPI:
# flat list of method names
native_methods = PLC.Methods.native_methods
- legacy_methods = PLC.Legacy.native_methods
# other_methods_map : dict {methodname: fullpath}
# e.g. 'Accessors' -> 'PLC.Accessors.Accessors'
- other_methods_map={}
- for subdir in [ 'Accessors' ]:
- path="PLC."+subdir
+ other_methods_map = {}
+ for subdir in ['Accessors']:
+ path = "PLC."+subdir
# scan e.g. PLC.Accessors.__all__
pkg = __import__(path).__dict__[subdir]
- for modulename in getattr(pkg,"__all__"):
- fullpath=path+"."+modulename
- for method in getattr(import_deep(fullpath),"methods"):
+ for modulename in getattr(pkg, "__all__"):
+ fullpath = path + "." + modulename
+ for method in getattr(import_deep(fullpath), "methods"):
other_methods_map[method] = fullpath
- all_methods = native_methods + legacy_methods + other_methods_map.keys()
-
- def __init__(self, config = "/etc/planetlab/plc_config", encoding = "utf-8"):
+ all_methods = native_methods + other_methods_map.keys()
+
+ def __init__(self, config="/etc/planetlab/plc_config",
+ encoding="utf-8"):
self.encoding = encoding
# Better just be documenting the API
# Load configuration
self.config = Config(config)
-
- # Initialize database connection
+# print("config has keys {}"
+# .format(vars(self.config).keys()))
+
+ # Initialize database connection
if self.config.PLC_DB_TYPE == "postgresql":
from PLC.PostgreSQL import PostgreSQL
self.db = PostgreSQL(self)
-
else:
- raise PLCAPIError, "Unsupported database type " + self.config.PLC_DB_TYPE
+ raise PLCAPIError("Unsupported database type "
+ + self.config.PLC_DB_TYPE)
+
+ # Aspects modify the API by injecting code before, after or
+ # around method calls.
+ # http://github.com/baris/pyaspects/blob/master/README
+ #
+ if self.config.PLC_RATELIMIT_ENABLED:
+ from aspects import apply_ratelimit_aspect
+ apply_ratelimit_aspect()
+
+ if getattr(self.config, "PLC_NETCONFIG_ENABLED", False):
+ from aspects.netconfigaspects import apply_netconfig_aspect
+ apply_netconfig_aspect()
+
+ # Enable Caching. Only for GetSlivers for the moment.
+ # TODO: we may consider to do this in an aspect like the ones above.
+ try:
+ if self.config.PLC_GETSLIVERS_CACHE:
+ getslivers_cache = True
+ except AttributeError:
+ getslivers_cache = False
+
+ if getslivers_cache:
+ os.environ['DJANGO_SETTINGS_MODULE'] = 'plc_django_settings'
+ from cache_utils.decorators import cached
+ from PLC.Methods.GetSlivers import GetSlivers
+
+ @cached(7200)
+ def cacheable_call(cls, auth, node_id_or_hostname):
+ return cls.raw_call(auth, node_id_or_hostname)
+
+ GetSlivers.call = cacheable_call
def callable(self, method):
"""
Return a new instance of the specified method.
"""
-
# Look up method
if method not in self.all_methods:
- raise PLCInvalidAPIMethod, method
-
+ raise PLCInvalidAPIMethod(method)
+
# Get new instance of method
try:
classname = method.split(".")[-1]
if method in self.native_methods:
- fullpath="PLC.Methods." + method
- elif method in self.legacy_methods:
- fullpath="PLC.Legacy." + method
+ fullpath = "PLC.Methods." + method
else:
- fullpath=self.other_methods_map[method]
+ fullpath = self.other_methods_map[method]
module = __import__(fullpath, globals(), locals(), [classname])
return getattr(module, classname)(self)
- except ImportError, AttributeError:
- raise PLCInvalidAPIMethod, "import error %s for %s" % (AttributeError,fullpath)
+ except (ImportError, AttributeError):
+ raise PLCInvalidAPIMethod("import error %s for %s"
+ % (AttributeError, fullpath))
def call(self, source, method, *args):
"""
interface = xmlrpclib
(args, method) = xmlrpclib.loads(data)
methodresponse = True
- except Exception, e:
+ except Exception as exc:
if SOAPpy is not None:
interface = SOAPpy
- (r, header, body, attrs) = parseSOAPRPC(data, header = 1, body = 1, attrs = 1)
+ (r, header, body, attrs) = \
+ parseSOAPRPC(data, header=1, body=1, attrs=1)
method = r._name
args = r._aslist()
# XXX Support named arguments
else:
- raise e
+ raise exc
try:
result = self.call(source, method, *args)
- except PLCFault, fault:
+ except PLCFault as fault:
# Handle expected faults
if interface == xmlrpclib:
result = fault
methodresponse = None
elif interface == SOAPpy:
- result = faultParameter(NS.ENV_T + ":Server", "Method Failed", method)
- result._setDetail("Fault %d: %s" % (fault.faultCode, fault.faultString))
+ result = faultParameter(NS.ENV_T + ":Server",
+ "Method Failed", method)
+ result._setDetail("Fault %d: %s"
+ % (fault.faultCode, fault.faultString))
# Return result
if interface == xmlrpclib:
if not isinstance(result, PLCFault):
result = (result,)
- data = xmlrpclib.dumps(result, methodresponse = True, encoding = self.encoding, allow_none = 1)
+ data = xmlrpclib.dumps(result, methodresponse=True,
+ encoding=self.encoding, allow_none=1)
elif interface == SOAPpy:
- data = buildSOAP(kw = {'%sResponse' % method: {'Result': result}}, encoding = self.encoding)
+ data = buildSOAP(
+ kw={'%sResponse' % method: {'Result': result}},
+ encoding=self.encoding)
return data
+
+ def handle_json(self, source, data):
+ """
+ Handle a JSON request
+ """
+ method, args = json.loads(data)
+ try:
+ result = self.call(source, method, *args)
+ except Exception as exc:
+ result = str(exc)
+
+ return json.dumps(result)
+
+# one simple unit test
+if __name__ == '__main__':
+ test_xmlrpclib_escape()
git://git.onelab.eu / plcapi.git / blobdiff