345 lines
12 KiB
Python
345 lines
12 KiB
Python
#This file is part of Tryton. The COPYRIGHT file at the top level of
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#this repository contains the full copyright notices and license terms.
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from trytond.protocols.sslsocket import SSLSocket
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from trytond.protocols.dispatcher import dispatch
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from trytond.config import CONFIG
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from trytond.protocols.datatype import Float
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import SimpleXMLRPCServer
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import SimpleHTTPServer
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import SocketServer
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import threading
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import traceback
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import socket
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import sys
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import os
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import gzip
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import StringIO
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try:
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import fcntl
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except ImportError:
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fcntl = None
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import posixpath
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import urllib
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import datetime
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from decimal import Decimal
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if sys.version_info < (2, 6):
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import simplejson as json
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else:
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import json
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def object_hook(dct):
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if '__class__' in dct:
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if dct['__class__'] == 'datetime':
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return datetime.datetime(dct['year'], dct['month'], dct['day'],
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dct['hour'], dct['minute'], dct['second'])
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elif dct['__class__'] == 'date':
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return datetime.date(dct['year'], dct['month'], dct['day'])
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return dct
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class JSONEncoder(json.JSONEncoder):
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def default(self, obj):
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if isinstance(obj, datetime.date):
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if isinstance(obj, datetime.datetime):
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return {'__class__': 'datetime',
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'year': obj.year,
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'month': obj.month,
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'day': obj.day,
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'hour': obj.hour,
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'minute': obj.minute,
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'second': obj.second,
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}
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return {'__class__': 'date',
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'year': obj.year,
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'month': obj.month,
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'day': obj.day,
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}
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elif isinstance(obj, Decimal):
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return float(obj)
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return super(JSONEncoder, self).default(obj)
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class SimpleJSONRPCDispatcher(SimpleXMLRPCServer.SimpleXMLRPCDispatcher):
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"""Mix-in class that dispatches JSON-RPC requests.
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This class is used to register JSON-RPC method handlers
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and then to dispatch them. There should never be any
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reason to instantiate this class directly.
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"""
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def _marshaled_dispatch(self, data, dispatch_method=None):
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"""Dispatches an JSON-RPC method from marshalled (JSON) data.
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JSON-RPC methods are dispatched from the marshalled (JSON) data
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using the _dispatch method and the result is returned as
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marshalled data. For backwards compatibility, a dispatch
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function can be provided as an argument (see comment in
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SimpleJSONRPCRequestHandler.do_POST) but overriding the
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existing method through subclassing is the prefered means
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of changing method dispatch behavior.
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"""
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rawreq = json.loads(data, object_hook=object_hook, parse_float=Float)
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req_id = rawreq.get('id', 0)
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method = rawreq['method']
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params = rawreq.get('params', [])
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response = {'id': req_id}
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try:
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#generate response
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if dispatch_method is not None:
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response['result'] = dispatch_method(method, params)
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else:
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response['result'] = self._dispatch(method, params)
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except:
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tb_s = ''
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for line in traceback.format_exception(*sys.exc_info()):
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try:
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line = line.encode('utf-8', 'ignore')
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except:
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continue
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tb_s += line
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for path in sys.path:
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tb_s = tb_s.replace(path, '')
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if CONFIG['debug_mode']:
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import pdb
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traceb = sys.exc_info()[2]
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pdb.post_mortem(traceb)
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# report exception back to server
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response['error'] = "%s:\n%s" % (sys.exc_value, tb_s)
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return json.dumps(response, cls=JSONEncoder)
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class GenericJSONRPCRequestHandler:
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def _dispatch(self, method, params):
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host, port = self.client_address[:2]
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database_name = self.path[1:]
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if database_name.startswith('sao/'):
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database_name = database_name[4:]
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method_list = method.split('.')
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object_type = method_list[0]
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object_name = '.'.join(method_list[1:-1])
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method = method_list[-1]
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args = (host, port, 'JSON-RPC', database_name, params[0], params[1],
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object_type, object_name, method) + tuple(params[2:])
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res = dispatch(*args)
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return res
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class SimpleJSONRPCRequestHandler(GenericJSONRPCRequestHandler,
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SimpleXMLRPCServer.SimpleXMLRPCRequestHandler,
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SimpleHTTPServer.SimpleHTTPRequestHandler):
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"""Simple JSON-RPC request handler class.
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Handles all HTTP POST requests and attempts to decode them as
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JSON-RPC requests.
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"""
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rpc_paths = None
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encode_threshold = 1400 # common MTU
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# Copy from SimpleXMLRPCServer.py with gzip encoding added
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def do_POST(self):
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"""Handles the HTTP POST request.
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Attempts to interpret all HTTP POST requests as JSON-RPC calls,
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which are forwarded to the server's _dispatch method for handling.
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"""
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# Check that the path is legal
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if not self.is_rpc_path_valid():
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self.report_404()
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return
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try:
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# Get arguments by reading body of request.
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# We read this in chunks to avoid straining
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# socket.read(); around the 10 or 15Mb mark, some platforms
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# begin to have problems (bug #792570).
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max_chunk_size = 10*1024*1024
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size_remaining = int(self.headers["content-length"])
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L = []
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while size_remaining:
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chunk_size = min(size_remaining, max_chunk_size)
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L.append(self.rfile.read(chunk_size))
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size_remaining -= len(L[-1])
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data = ''.join(L)
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# In previous versions of SimpleXMLRPCServer, _dispatch
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# could be overridden in this class, instead of in
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# SimpleXMLRPCDispatcher. To maintain backwards compatibility,
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# check to see if a subclass implements _dispatch and dispatch
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# using that method if present.
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response = self.server._marshaled_dispatch(
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data, getattr(self, '_dispatch', None)
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)
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except: # This should only happen if the module is buggy
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# internal error, report as HTTP server error
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self.send_response(500)
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self.end_headers()
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else:
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# got a valid JSON RPC response
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self.send_response(200)
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self.send_header("Content-type", "application/json-rpc")
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# Handle gzip encoding
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if 'gzip' in self.headers.get('Accept-Encoding', '').split(',') \
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and len(response) > self.encode_threshold:
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buffer = StringIO.StringIO()
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output = gzip.GzipFile(mode='wb', fileobj=buffer)
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output.write(response)
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output.close()
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buffer.seek(0)
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response = buffer.getvalue()
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self.send_header('Content-Encoding', 'gzip')
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self.send_header("Content-length", str(len(response)))
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self.end_headers()
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self.wfile.write(response)
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# shut down the connection
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self.wfile.flush()
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self.connection.shutdown(1)
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def translate_path(self, path):
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"""Translate a /-separated PATH to the local filename syntax.
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Components that mean special things to the local file system
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(e.g. drive or directory names) are ignored. (XXX They should
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probably be diagnosed.)
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"""
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# abandon query parameters
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path = path.split('?', 1)[0]
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path = path.split('#', 1)[0]
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path = posixpath.normpath(urllib.unquote(path))
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words = path.split('/')
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words = filter(None, words)
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path = CONFIG['jsondata_path']
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for word in words:
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drive, word = os.path.splitdrive(word)
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head, word = os.path.split(word)
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if word in (os.curdir, os.pardir): continue
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path = os.path.join(path, word)
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return path
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class SecureJSONRPCRequestHandler(SimpleJSONRPCRequestHandler):
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def setup(self):
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self.connection = SSLSocket(self.request)
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self.rfile = socket._fileobject(self.request, "rb", self.rbufsize)
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self.wfile = socket._fileobject(self.request, "wb", self.wbufsize)
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class SimpleJSONRPCServer(SocketServer.TCPServer,
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SimpleJSONRPCDispatcher):
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"""Simple JSON-RPC server.
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Simple JSON-RPC server that allows functions and a single instance
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to be installed to handle requests. The default implementation
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attempts to dispatch JSON-RPC calls to the functions or instance
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installed in the server. Override the _dispatch method inhereted
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from SimpleJSONRPCDispatcher to change this behavior.
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"""
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allow_reuse_address = True
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# Warning: this is for debugging purposes only! Never set this to True in
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# production code, as will be sending out sensitive information (exception
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# and stack trace details) when exceptions are raised inside
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# SimpleJSONRPCRequestHandler.do_POST
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_send_traceback_header = False
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def __init__(self, addr, requestHandler=SimpleJSONRPCRequestHandler,
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logRequests=True, allow_none=False, encoding=None,
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bind_and_activate=True):
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self.logRequests = logRequests
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SimpleJSONRPCDispatcher.__init__(self, allow_none, encoding)
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try:
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SocketServer.TCPServer.__init__(self, addr, requestHandler,
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bind_and_activate)
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except TypeError:
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SocketServer.TCPServer.__init__(self, addr, requestHandler)
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# [Bug #1222790] If possible, set close-on-exec flag; if a
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# method spawns a subprocess, the subprocess shouldn't have
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# the listening socket open.
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if fcntl is not None and hasattr(fcntl, 'FD_CLOEXEC'):
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flags = fcntl.fcntl(self.fileno(), fcntl.F_GETFD)
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flags |= fcntl.FD_CLOEXEC
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fcntl.fcntl(self.fileno(), fcntl.F_SETFD, flags)
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class SimpleThreadedJSONRPCServer(SocketServer.ThreadingMixIn,
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SimpleJSONRPCServer):
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timeout = 1
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def server_bind(self):
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self.socket.setsockopt(socket.SOL_SOCKET,
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socket.SO_REUSEADDR, 1)
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SimpleJSONRPCServer.server_bind(self)
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class SimpleThreadedJSONRPCServer6(SimpleThreadedJSONRPCServer):
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address_family = socket.AF_INET6
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class SecureThreadedJSONRPCServer(SimpleThreadedJSONRPCServer):
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def __init__(self, server_address, HandlerClass, logRequests=1):
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SimpleThreadedJSONRPCServer.__init__(self, server_address, HandlerClass,
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logRequests)
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self.socket = SSLSocket(socket.socket(self.address_family,
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self.socket_type))
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self.server_bind()
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self.server_activate()
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class SecureThreadedJSONRPCServer6(SecureThreadedJSONRPCServer):
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address_family = socket.AF_INET6
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class JSONRPCDaemon(threading.Thread):
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def __init__(self, interface, port, secure=False):
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threading.Thread.__init__(self)
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self.secure = secure
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self.running = False
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ipv6 = False
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if socket.has_ipv6:
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try:
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socket.getaddrinfo(interface or None, port, socket.AF_INET6)
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ipv6 = True
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except:
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pass
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if secure:
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handler_class = SecureJSONRPCRequestHandler
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server_class = SecureThreadedJSONRPCServer
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if ipv6:
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server_class = SecureThreadedJSONRPCServer6
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else:
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handler_class = SimpleJSONRPCRequestHandler
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server_class = SimpleThreadedJSONRPCServer
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if ipv6:
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server_class = SimpleThreadedJSONRPCServer6
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self.server = server_class((interface, port), handler_class, 0)
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def stop(self):
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self.running = False
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if os.name != 'nt':
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if hasattr(socket, 'SHUT_RDWR'):
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self.server.socket.shutdown(socket.SHUT_RDWR)
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else:
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self.server.socket.shutdown(2)
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self.server.socket.close()
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def run(self):
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self.running = True
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while self.running:
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self.server.handle_request()
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return True
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