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Remove the protobuf based HTTP upload code path

Browse Source 
Now that Gerrit2 has been released and the only supported upload
protocol is direct git push over SSH we no longer need the large
and complex protobuf client library, or the upload chunking logic
in gerrit_upload.py.

Signed-off-by: Shawn O. Pearce <sop@google.com>
This commit is contained in:
Shawn O. Pearce 2009-01-26 10:55:39 -08:00
parent b54a392c9a
commit 370e3fa666
25 changed files with 1 additions and 6287 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
Makefile
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@ -13,17 +13,7 @@
# See the License for the specific language governing permissions and # See the License for the specific language governing permissions and
# limitations under the License. # limitations under the License.
GERRIT_SRC=../gerrit
GERRIT_MODULES=codereview froofle
all: all:
clean: clean:
find . -name \*.pyc -type f | xargs rm -f find . -name \*.pyc -type f | xargs rm -f
update-pyclient:
$(MAKE) -C $(GERRIT_SRC) release-pyclient
rm -rf $(GERRIT_MODULES)
(cd $(GERRIT_SRC)/release/pyclient && \
find . -type f \
| cpio -pd $(abspath .))

1
codereview/__init__.py
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@ -1 +0,0 @@
__version__ = 'v1.0-112-gbcd4db5a'

32
codereview/need_retry_pb2.py
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@ -1,32 +0,0 @@
#!/usr/bin/python2.4
# Generated by the protocol buffer compiler. DO NOT EDIT!
from froofle.protobuf import descriptor
from froofle.protobuf import message
from froofle.protobuf import reflection
from froofle.protobuf import service
from froofle.protobuf import service_reflection
from froofle.protobuf import descriptor_pb2
_RETRYREQUESTLATERRESPONSE = descriptor.Descriptor(
name='RetryRequestLaterResponse',
full_name='codereview.RetryRequestLaterResponse',
filename='need_retry.proto',
containing_type=None,
fields=[
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
],
options=None)
class RetryRequestLaterResponse(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
DESCRIPTOR = _RETRYREQUESTLATERRESPONSE

380
codereview/proto_client.py
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@ -1,380 +0,0 @@
# Copyright 2007, 2008 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import base64
import cookielib
import getpass
import logging
import md5
import os
import random
import socket
import sys
import time
import urllib
import urllib2
import urlparse
from froofle.protobuf.service import RpcChannel
from froofle.protobuf.service import RpcController
from need_retry_pb2 import RetryRequestLaterResponse;
_cookie_jars = {}
def _open_jar(path):
auth = False
if path is None:
c = cookielib.CookieJar()
else:
c = _cookie_jars.get(path)
if c is None:
c = cookielib.MozillaCookieJar(path)
if os.path.exists(path):
try:
c.load()
auth = True
except (cookielib.LoadError, IOError):
pass
if auth:
print >>sys.stderr, \
'Loaded authentication cookies from %s' \
% path
else:
os.close(os.open(path, os.O_CREAT, 0600))
os.chmod(path, 0600)
_cookie_jars[path] = c
else:
auth = True
return c, auth
class ClientLoginError(urllib2.HTTPError):
"""Raised to indicate an error authenticating with ClientLogin."""
def __init__(self, url, code, msg, headers, args):
urllib2.HTTPError.__init__(self, url, code, msg, headers, None)
self.args = args
self.reason = args["Error"]
class Proxy(object):
class _ResultHolder(object):
def __call__(self, result):
self._result = result
class _RemoteController(RpcController):
def Reset(self):
pass
def Failed(self):
pass
def ErrorText(self):
pass
def StartCancel(self):
pass
def SetFailed(self, reason):
raise RuntimeError, reason
def IsCancelled(self):
pass
def NotifyOnCancel(self, callback):
pass
def __init__(self, stub):
self._stub = stub
def __getattr__(self, key):
method = getattr(self._stub, key)
def call(request):
done = self._ResultHolder()
method(self._RemoteController(), request, done)
return done._result
return call
class HttpRpc(RpcChannel):
"""Simple protobuf over HTTP POST implementation."""
def __init__(self, host, auth_function,
host_override=None,
extra_headers={},
cookie_file=None):
"""Creates a new HttpRpc.
Args:
host: The host to send requests to.
auth_function: A function that takes no arguments and returns an
(email, password) tuple when called. Will be called if authentication
is required.
host_override: The host header to send to the server (defaults to host).
extra_headers: A dict of extra headers to append to every request.
cookie_file: If not None, name of the file in ~/ to save the
cookie jar into. Applications are encouraged to set this to
'.$appname_cookies' or some otherwise unique name.
"""
self.host = host.lower()
self.host_override = host_override
self.auth_function = auth_function
self.authenticated = False
self.extra_headers = extra_headers
self.xsrf_token = None
if cookie_file is None:
self.cookie_file = None
else:
self.cookie_file = os.path.expanduser("~/%s" % cookie_file)
self.opener = self._GetOpener()
if self.host_override:
logging.info("Server: %s; Host: %s", self.host, self.host_override)
else:
logging.info("Server: %s", self.host)
def CallMethod(self, method, controller, request, response_type, done):
pat = "application/x-google-protobuf; name=%s"
url = "/proto/%s/%s" % (method.containing_service.name, method.name)
reqbin = request.SerializeToString()
reqtyp = pat % request.DESCRIPTOR.full_name
reqmd5 = base64.b64encode(md5.new(reqbin).digest())
start = time.time()
while True:
t, b = self._Send(url, reqbin, reqtyp, reqmd5)
if t == (pat % RetryRequestLaterResponse.DESCRIPTOR.full_name):
if time.time() >= (start + 1800):
controller.SetFailed("timeout")
return
s = random.uniform(0.250, 2.000)
print "Busy, retrying in %.3f seconds ..." % s
time.sleep(s)
continue
if t == (pat % response_type.DESCRIPTOR.full_name):
response = response_type()
response.ParseFromString(b)
done(response)
else:
controller.SetFailed("Unexpected %s response" % t)
break
def _CreateRequest(self, url, data=None):
"""Creates a new urllib request."""
logging.debug("Creating request for: '%s' with payload:\n%s", url, data)
req = urllib2.Request(url, data=data)
if self.host_override:
req.add_header("Host", self.host_override)
for key, value in self.extra_headers.iteritems():
req.add_header(key, value)
return req
def _GetAuthToken(self, email, password):
"""Uses ClientLogin to authenticate the user, returning an auth token.
Args:
email: The user's email address
password: The user's password
Raises:
ClientLoginError: If there was an error authenticating with ClientLogin.
HTTPError: If there was some other form of HTTP error.
Returns:
The authentication token returned by ClientLogin.
"""
account_type = 'GOOGLE'
if self.host.endswith('.google.com'):
account_type = 'HOSTED'
req = self._CreateRequest(
url="https://www.google.com/accounts/ClientLogin",
data=urllib.urlencode({
"Email": email,
"Passwd": password,
"service": "ah",
"source": "gerrit-codereview-client",
"accountType": account_type,
})
)
try:
response = self.opener.open(req)
response_body = response.read()
response_dict = dict(x.split("=")
for x in response_body.split("\n") if x)
return response_dict["Auth"]
except urllib2.HTTPError, e:
if e.code == 403:
body = e.read()
response_dict = dict(x.split("=", 1) for x in body.split("\n") if x)
raise ClientLoginError(req.get_full_url(), e.code, e.msg,
e.headers, response_dict)
else:
raise
def _GetAuthCookie(self, auth_token):
"""Fetches authentication cookies for an authentication token.
Args:
auth_token: The authentication token returned by ClientLogin.
Raises:
HTTPError: If there was an error fetching the authentication cookies.
"""
# This is a dummy value to allow us to identify when we're successful.
continue_location = "http://localhost/"
args = {"continue": continue_location, "auth": auth_token}
req = self._CreateRequest("http://%s/_ah/login?%s" %
(self.host, urllib.urlencode(args)))
try:
response = self.opener.open(req)
except urllib2.HTTPError, e:
response = e
if (response.code != 302 or
response.info()["location"] != continue_location):
raise urllib2.HTTPError(req.get_full_url(), response.code, response.msg,
response.headers, response.fp)
def _GetXsrfToken(self):
"""Fetches /proto/_token for use in X-XSRF-Token HTTP header.
Raises:
HTTPError: If there was an error fetching a new token.
"""
tries = 0
while True:
url = "http://%s/proto/_token" % self.host
req = self._CreateRequest(url)
try:
response = self.opener.open(req)
self.xsrf_token = response.read()
return
except urllib2.HTTPError, e:
if tries > 3:
raise
elif e.code == 401:
self._Authenticate()
else:
raise
def _Authenticate(self):
"""Authenticates the user.
The authentication process works as follows:
1) We get a username and password from the user
2) We use ClientLogin to obtain an AUTH token for the user
(see http://code.google.com/apis/accounts/AuthForInstalledApps.html).
3) We pass the auth token to /_ah/login on the server to obtain an
authentication cookie. If login was successful, it tries to redirect
us to the URL we provided.
If we attempt to access the upload API without first obtaining an
authentication cookie, it returns a 401 response and directs us to
authenticate ourselves with ClientLogin.
"""
attempts = 0
while True:
attempts += 1
try:
cred = self.auth_function()
auth_token = self._GetAuthToken(cred[0], cred[1])
except ClientLoginError:
if attempts < 3:
continue
raise
self._GetAuthCookie(auth_token)
self.authenticated = True
if self.cookie_file is not None:
print >>sys.stderr, \
'Saving authentication cookies to %s' \
% self.cookie_file
self.cookie_jar.save()
return
def _Send(self, request_path, payload, content_type, content_md5):
"""Sends an RPC and returns the response.
Args:
request_path: The path to send the request to, eg /api/appversion/create.
payload: The body of the request, or None to send an empty request.
content_type: The Content-Type header to use.
content_md5: The Content-MD5 header to use.
Returns:
The content type, as a string.
The response body, as a string.
"""
if not self.authenticated:
self._Authenticate()
if not self.xsrf_token:
self._GetXsrfToken()
old_timeout = socket.getdefaulttimeout()
socket.setdefaulttimeout(None)
try:
tries = 0
while True:
tries += 1
url = "http://%s%s" % (self.host, request_path)
req = self._CreateRequest(url=url, data=payload)
req.add_header("Content-Type", content_type)
req.add_header("Content-MD5", content_md5)
req.add_header("X-XSRF-Token", self.xsrf_token)
try:
f = self.opener.open(req)
hdr = f.info()
type = hdr.getheader('Content-Type',
'application/octet-stream')
response = f.read()
f.close()
return type, response
except urllib2.HTTPError, e:
if tries > 3:
raise
elif e.code == 401:
self._Authenticate()
elif e.code == 403:
if not hasattr(e, 'read'):
e.read = lambda self: ''
raise RuntimeError, '403\nxsrf: %s\n%s' \
% (self.xsrf_token, e.read())
else:
raise
finally:
socket.setdefaulttimeout(old_timeout)
def _GetOpener(self):
"""Returns an OpenerDirector that supports cookies and ignores redirects.
Returns:
A urllib2.OpenerDirector object.
"""
opener = urllib2.OpenerDirector()
opener.add_handler(urllib2.ProxyHandler())
opener.add_handler(urllib2.UnknownHandler())
opener.add_handler(urllib2.HTTPHandler())
opener.add_handler(urllib2.HTTPDefaultErrorHandler())
opener.add_handler(urllib2.HTTPSHandler())
opener.add_handler(urllib2.HTTPErrorProcessor())
self.cookie_jar, \
self.authenticated = _open_jar(self.cookie_file)
opener.add_handler(urllib2.HTTPCookieProcessor(self.cookie_jar))
return opener

48
codereview/review_pb2.py
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@ -1,48 +0,0 @@
#!/usr/bin/python2.4
# Generated by the protocol buffer compiler. DO NOT EDIT!
from froofle.protobuf import descriptor
from froofle.protobuf import message
from froofle.protobuf import reflection
from froofle.protobuf import service
from froofle.protobuf import service_reflection
from froofle.protobuf import descriptor_pb2
import upload_bundle_pb2
_REVIEWSERVICE = descriptor.ServiceDescriptor(
name='ReviewService',
full_name='codereview.ReviewService',
index=0,
options=None,
methods=[
descriptor.MethodDescriptor(
name='UploadBundle',
full_name='codereview.ReviewService.UploadBundle',
index=0,
containing_service=None,
input_type=upload_bundle_pb2._UPLOADBUNDLEREQUEST,
output_type=upload_bundle_pb2._UPLOADBUNDLERESPONSE,
options=None,
),
descriptor.MethodDescriptor(
name='ContinueBundle',
full_name='codereview.ReviewService.ContinueBundle',
index=1,
containing_service=None,
input_type=upload_bundle_pb2._UPLOADBUNDLECONTINUE,
output_type=upload_bundle_pb2._UPLOADBUNDLERESPONSE,
options=None,
),
])
class ReviewService(service.Service):
__metaclass__ = service_reflection.GeneratedServiceType
DESCRIPTOR = _REVIEWSERVICE
class ReviewService_Stub(ReviewService):
__metaclass__ = service_reflection.GeneratedServiceStubType
DESCRIPTOR = _REVIEWSERVICE

271
codereview/upload_bundle_pb2.py
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@ -1,271 +0,0 @@
#!/usr/bin/python2.4
# Generated by the protocol buffer compiler. DO NOT EDIT!
from froofle.protobuf import descriptor
from froofle.protobuf import message
from froofle.protobuf import reflection
from froofle.protobuf import service
from froofle.protobuf import service_reflection
from froofle.protobuf import descriptor_pb2
_UPLOADBUNDLERESPONSE_CODETYPE = descriptor.EnumDescriptor(
name='CodeType',
full_name='codereview.UploadBundleResponse.CodeType',
filename='CodeType',
values=[
descriptor.EnumValueDescriptor(
name='RECEIVED', index=0, number=1,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='CONTINUE', index=1, number=4,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='UNAUTHORIZED_USER', index=2, number=7,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='UNKNOWN_CHANGE', index=3, number=9,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='CHANGE_CLOSED', index=4, number=10,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='UNKNOWN_EMAIL', index=5, number=11,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='UNKNOWN_PROJECT', index=6, number=2,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='UNKNOWN_BRANCH', index=7, number=3,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='UNKNOWN_BUNDLE', index=8, number=5,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='NOT_BUNDLE_OWNER', index=9, number=6,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='BUNDLE_CLOSED', index=10, number=8,
options=None,
type=None),
],
options=None,
)
_REPLACEPATCHSET = descriptor.Descriptor(
name='ReplacePatchSet',
full_name='codereview.ReplacePatchSet',
filename='upload_bundle.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='change_id', full_name='codereview.ReplacePatchSet.change_id', index=0,
number=1, type=9, cpp_type=9, label=2,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='object_id', full_name='codereview.ReplacePatchSet.object_id', index=1,
number=2, type=9, cpp_type=9, label=2,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
],
options=None)
_UPLOADBUNDLEREQUEST = descriptor.Descriptor(
name='UploadBundleRequest',
full_name='codereview.UploadBundleRequest',
filename='upload_bundle.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='dest_project', full_name='codereview.UploadBundleRequest.dest_project', index=0,
number=10, type=9, cpp_type=9, label=2,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='dest_branch', full_name='codereview.UploadBundleRequest.dest_branch', index=1,
number=11, type=9, cpp_type=9, label=2,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='partial_upload', full_name='codereview.UploadBundleRequest.partial_upload', index=2,
number=12, type=8, cpp_type=7, label=2,
default_value=False,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='bundle_data', full_name='codereview.UploadBundleRequest.bundle_data', index=3,
number=13, type=12, cpp_type=9, label=2,
default_value="",
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='contained_object', full_name='codereview.UploadBundleRequest.contained_object', index=4,
number=1, type=9, cpp_type=9, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='replace', full_name='codereview.UploadBundleRequest.replace', index=5,
number=2, type=11, cpp_type=10, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='reviewers', full_name='codereview.UploadBundleRequest.reviewers', index=6,
number=3, type=9, cpp_type=9, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='cc', full_name='codereview.UploadBundleRequest.cc', index=7,
number=4, type=9, cpp_type=9, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
],
options=None)
_UPLOADBUNDLERESPONSE = descriptor.Descriptor(
name='UploadBundleResponse',
full_name='codereview.UploadBundleResponse',
filename='upload_bundle.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='status_code', full_name='codereview.UploadBundleResponse.status_code', index=0,
number=10, type=14, cpp_type=8, label=2,
default_value=1,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='bundle_id', full_name='codereview.UploadBundleResponse.bundle_id', index=1,
number=11, type=9, cpp_type=9, label=1,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='invalid_reviewers', full_name='codereview.UploadBundleResponse.invalid_reviewers', index=2,
number=12, type=9, cpp_type=9, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='invalid_cc', full_name='codereview.UploadBundleResponse.invalid_cc', index=3,
number=13, type=9, cpp_type=9, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
_UPLOADBUNDLERESPONSE_CODETYPE,
],
options=None)
_UPLOADBUNDLECONTINUE = descriptor.Descriptor(
name='UploadBundleContinue',
full_name='codereview.UploadBundleContinue',
filename='upload_bundle.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='bundle_id', full_name='codereview.UploadBundleContinue.bundle_id', index=0,
number=10, type=9, cpp_type=9, label=2,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='segment_id', full_name='codereview.UploadBundleContinue.segment_id', index=1,
number=11, type=5, cpp_type=1, label=2,
default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='partial_upload', full_name='codereview.UploadBundleContinue.partial_upload', index=2,
number=12, type=8, cpp_type=7, label=2,
default_value=False,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='bundle_data', full_name='codereview.UploadBundleContinue.bundle_data', index=3,
number=13, type=12, cpp_type=9, label=1,
default_value="",
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
],
options=None)
_UPLOADBUNDLEREQUEST.fields_by_name['replace'].message_type = _REPLACEPATCHSET
_UPLOADBUNDLERESPONSE.fields_by_name['status_code'].enum_type = _UPLOADBUNDLERESPONSE_CODETYPE
class ReplacePatchSet(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
DESCRIPTOR = _REPLACEPATCHSET
class UploadBundleRequest(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
DESCRIPTOR = _UPLOADBUNDLEREQUEST
class UploadBundleResponse(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
DESCRIPTOR = _UPLOADBUNDLERESPONSE
class UploadBundleContinue(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
DESCRIPTOR = _UPLOADBUNDLECONTINUE

0
froofle/__init__.py
View File

0
froofle/protobuf/__init__.py
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433
froofle/protobuf/descriptor.py
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@ -1,433 +0,0 @@
# Protocol Buffers - Google's data interchange format
# Copyright 2008 Google Inc. All rights reserved.
# http://code.google.com/p/protobuf/
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# TODO(robinson): We probably need to provide deep-copy methods for
# descriptor types. When a FieldDescriptor is passed into
# Descriptor.__init__(), we should make a deep copy and then set
# containing_type on it. Alternatively, we could just get
# rid of containing_type (iit's not needed for reflection.py, at least).
#
# TODO(robinson): Print method?
#
# TODO(robinson): Useful __repr__?
"""Descriptors essentially contain exactly the information found in a .proto
file, in types that make this information accessible in Python.
"""
__author__ = 'robinson@google.com (Will Robinson)'
class DescriptorBase(object):
"""Descriptors base class.
This class is the base of all descriptor classes. It provides common options
related functionaility.
"""
def __init__(self, options, options_class_name):
"""Initialize the descriptor given its options message and the name of the
class of the options message. The name of the class is required in case
the options message is None and has to be created.
"""
self._options = options
self._options_class_name = options_class_name
def GetOptions(self):
"""Retrieves descriptor options.
This method returns the options set or creates the default options for the
descriptor.
"""
if self._options:
return self._options
from froofle.protobuf import descriptor_pb2
try:
options_class = getattr(descriptor_pb2, self._options_class_name)
except AttributeError:
raise RuntimeError('Unknown options class name %s!' %
(self._options_class_name))
self._options = options_class()
return self._options
class Descriptor(DescriptorBase):
"""Descriptor for a protocol message type.
A Descriptor instance has the following attributes:
name: (str) Name of this protocol message type.
full_name: (str) Fully-qualified name of this protocol message type,
which will include protocol "package" name and the name of any
enclosing types.
filename: (str) Name of the .proto file containing this message.
containing_type: (Descriptor) Reference to the descriptor of the
type containing us, or None if we have no containing type.
fields: (list of FieldDescriptors) Field descriptors for all
fields in this type.
fields_by_number: (dict int -> FieldDescriptor) Same FieldDescriptor
objects as in |fields|, but indexed by "number" attribute in each
FieldDescriptor.
fields_by_name: (dict str -> FieldDescriptor) Same FieldDescriptor
objects as in |fields|, but indexed by "name" attribute in each
FieldDescriptor.
nested_types: (list of Descriptors) Descriptor references
for all protocol message types nested within this one.
nested_types_by_name: (dict str -> Descriptor) Same Descriptor
objects as in |nested_types|, but indexed by "name" attribute
in each Descriptor.
enum_types: (list of EnumDescriptors) EnumDescriptor references
for all enums contained within this type.
enum_types_by_name: (dict str ->EnumDescriptor) Same EnumDescriptor
objects as in |enum_types|, but indexed by "name" attribute
in each EnumDescriptor.
enum_values_by_name: (dict str -> EnumValueDescriptor) Dict mapping
from enum value name to EnumValueDescriptor for that value.
extensions: (list of FieldDescriptor) All extensions defined directly
within this message type (NOT within a nested type).
extensions_by_name: (dict, string -> FieldDescriptor) Same FieldDescriptor
objects as |extensions|, but indexed by "name" attribute of each
FieldDescriptor.
options: (descriptor_pb2.MessageOptions) Protocol message options or None
to use default message options.
"""
def __init__(self, name, full_name, filename, containing_type,
fields, nested_types, enum_types, extensions, options=None):
"""Arguments to __init__() are as described in the description
of Descriptor fields above.
"""
super(Descriptor, self).__init__(options, 'MessageOptions')
self.name = name
self.full_name = full_name
self.filename = filename
self.containing_type = containing_type
# We have fields in addition to fields_by_name and fields_by_number,
# so that:
# 1. Clients can index fields by "order in which they're listed."
# 2. Clients can easily iterate over all fields with the terse
# syntax: for f in descriptor.fields: ...
self.fields = fields
for field in self.fields:
field.containing_type = self
self.fields_by_number = dict((f.number, f) for f in fields)
self.fields_by_name = dict((f.name, f) for f in fields)
self.nested_types = nested_types
self.nested_types_by_name = dict((t.name, t) for t in nested_types)
self.enum_types = enum_types
for enum_type in self.enum_types:
enum_type.containing_type = self
self.enum_types_by_name = dict((t.name, t) for t in enum_types)
self.enum_values_by_name = dict(
(v.name, v) for t in enum_types for v in t.values)
self.extensions = extensions
for extension in self.extensions:
extension.extension_scope = self
self.extensions_by_name = dict((f.name, f) for f in extensions)
# TODO(robinson): We should have aggressive checking here,
# for example:
# * If you specify a repeated field, you should not be allowed
# to specify a default value.
# * [Other examples here as needed].
#
# TODO(robinson): for this and other *Descriptor classes, we
# might also want to lock things down aggressively (e.g.,
# prevent clients from setting the attributes). Having
# stronger invariants here in general will reduce the number
# of runtime checks we must do in reflection.py...
class FieldDescriptor(DescriptorBase):
"""Descriptor for a single field in a .proto file.
A FieldDescriptor instance has the following attriubtes:
name: (str) Name of this field, exactly as it appears in .proto.
full_name: (str) Name of this field, including containing scope. This is
particularly relevant for extensions.
index: (int) Dense, 0-indexed index giving the order that this
field textually appears within its message in the .proto file.
number: (int) Tag number declared for this field in the .proto file.
type: (One of the TYPE_* constants below) Declared type.
cpp_type: (One of the CPPTYPE_* constants below) C++ type used to
represent this field.
label: (One of the LABEL_* constants below) Tells whether this
field is optional, required, or repeated.
default_value: (Varies) Default value of this field. Only
meaningful for non-repeated scalar fields. Repeated fields
should always set this to [], and non-repeated composite
fields should always set this to None.
containing_type: (Descriptor) Descriptor of the protocol message
type that contains this field. Set by the Descriptor constructor
if we're passed into one.
Somewhat confusingly, for extension fields, this is the
descriptor of the EXTENDED message, not the descriptor
of the message containing this field. (See is_extension and
extension_scope below).
message_type: (Descriptor) If a composite field, a descriptor
of the message type contained in this field. Otherwise, this is None.
enum_type: (EnumDescriptor) If this field contains an enum, a
descriptor of that enum. Otherwise, this is None.
is_extension: True iff this describes an extension field.
extension_scope: (Descriptor) Only meaningful if is_extension is True.
Gives the message that immediately contains this extension field.
Will be None iff we're a top-level (file-level) extension field.
options: (descriptor_pb2.FieldOptions) Protocol message field options or
None to use default field options.
"""
# Must be consistent with C++ FieldDescriptor::Type enum in
# descriptor.h.
#
# TODO(robinson): Find a way to eliminate this repetition.
TYPE_DOUBLE = 1
TYPE_FLOAT = 2
TYPE_INT64 = 3
TYPE_UINT64 = 4
TYPE_INT32 = 5
TYPE_FIXED64 = 6
TYPE_FIXED32 = 7
TYPE_BOOL = 8
TYPE_STRING = 9
TYPE_GROUP = 10
TYPE_MESSAGE = 11
TYPE_BYTES = 12
TYPE_UINT32 = 13
TYPE_ENUM = 14
TYPE_SFIXED32 = 15
TYPE_SFIXED64 = 16
TYPE_SINT32 = 17
TYPE_SINT64 = 18
MAX_TYPE = 18
# Must be consistent with C++ FieldDescriptor::CppType enum in
# descriptor.h.
#
# TODO(robinson): Find a way to eliminate this repetition.
CPPTYPE_INT32 = 1
CPPTYPE_INT64 = 2
CPPTYPE_UINT32 = 3
CPPTYPE_UINT64 = 4
CPPTYPE_DOUBLE = 5
CPPTYPE_FLOAT = 6
CPPTYPE_BOOL = 7
CPPTYPE_ENUM = 8
CPPTYPE_STRING = 9
CPPTYPE_MESSAGE = 10
MAX_CPPTYPE = 10
# Must be consistent with C++ FieldDescriptor::Label enum in
# descriptor.h.
#
# TODO(robinson): Find a way to eliminate this repetition.
LABEL_OPTIONAL = 1
LABEL_REQUIRED = 2
LABEL_REPEATED = 3
MAX_LABEL = 3
def __init__(self, name, full_name, index, number, type, cpp_type, label,
default_value, message_type, enum_type, containing_type,
is_extension, extension_scope, options=None):
"""The arguments are as described in the description of FieldDescriptor
attributes above.
Note that containing_type may be None, and may be set later if necessary
(to deal with circular references between message types, for example).
Likewise for extension_scope.
"""
super(FieldDescriptor, self).__init__(options, 'FieldOptions')
self.name = name
self.full_name = full_name
self.index = index
self.number = number
self.type = type
self.cpp_type = cpp_type
self.label = label
self.default_value = default_value
self.containing_type = containing_type
self.message_type = message_type
self.enum_type = enum_type
self.is_extension = is_extension
self.extension_scope = extension_scope
class EnumDescriptor(DescriptorBase):
"""Descriptor for an enum defined in a .proto file.
An EnumDescriptor instance has the following attributes:
name: (str) Name of the enum type.
full_name: (str) Full name of the type, including package name
and any enclosing type(s).
filename: (str) Name of the .proto file in which this appears.
values: (list of EnumValueDescriptors) List of the values
in this enum.
values_by_name: (dict str -> EnumValueDescriptor) Same as |values|,
but indexed by the "name" field of each EnumValueDescriptor.
values_by_number: (dict int -> EnumValueDescriptor) Same as |values|,
but indexed by the "number" field of each EnumValueDescriptor.
containing_type: (Descriptor) Descriptor of the immediate containing
type of this enum, or None if this is an enum defined at the
top level in a .proto file. Set by Descriptor's constructor
if we're passed into one.
options: (descriptor_pb2.EnumOptions) Enum options message or
None to use default enum options.
"""
def __init__(self, name, full_name, filename, values,
containing_type=None, options=None):
"""Arguments are as described in the attribute description above."""
super(EnumDescriptor, self).__init__(options, 'EnumOptions')
self.name = name
self.full_name = full_name
self.filename = filename
self.values = values
for value in self.values:
value.type = self
self.values_by_name = dict((v.name, v) for v in values)
self.values_by_number = dict((v.number, v) for v in values)
self.containing_type = containing_type
class EnumValueDescriptor(DescriptorBase):
"""Descriptor for a single value within an enum.
name: (str) Name of this value.
index: (int) Dense, 0-indexed index giving the order that this
value appears textually within its enum in the .proto file.
number: (int) Actual number assigned to this enum value.
type: (EnumDescriptor) EnumDescriptor to which this value
belongs. Set by EnumDescriptor's constructor if we're
passed into one.
options: (descriptor_pb2.EnumValueOptions) Enum value options message or
None to use default enum value options options.
"""
def __init__(self, name, index, number, type=None, options=None):
"""Arguments are as described in the attribute description above."""
super(EnumValueDescriptor, self).__init__(options, 'EnumValueOptions')
self.name = name
self.index = index
self.number = number
self.type = type
class ServiceDescriptor(DescriptorBase):
"""Descriptor for a service.
name: (str) Name of the service.
full_name: (str) Full name of the service, including package name.
index: (int) 0-indexed index giving the order that this services
definition appears withing the .proto file.
methods: (list of MethodDescriptor) List of methods provided by this
service.
options: (descriptor_pb2.ServiceOptions) Service options message or
None to use default service options.
"""
def __init__(self, name, full_name, index, methods, options=None):
super(ServiceDescriptor, self).__init__(options, 'ServiceOptions')
self.name = name
self.full_name = full_name
self.index = index
self.methods = methods
# Set the containing service for each method in this service.
for method in self.methods:
method.containing_service = self
def FindMethodByName(self, name):
"""Searches for the specified method, and returns its descriptor."""
for method in self.methods:
if name == method.name:
return method
return None
class MethodDescriptor(DescriptorBase):
"""Descriptor for a method in a service.
name: (str) Name of the method within the service.
full_name: (str) Full name of method.
index: (int) 0-indexed index of the method inside the service.
containing_service: (ServiceDescriptor) The service that contains this
method.
input_type: The descriptor of the message that this method accepts.
output_type: The descriptor of the message that this method returns.
options: (descriptor_pb2.MethodOptions) Method options message or
None to use default method options.
"""
def __init__(self, name, full_name, index, containing_service,
input_type, output_type, options=None):
"""The arguments are as described in the description of MethodDescriptor
attributes above.
Note that containing_service may be None, and may be set later if necessary.
"""
super(MethodDescriptor, self).__init__(options, 'MethodOptions')
self.name = name
self.full_name = full_name
self.index = index
self.containing_service = containing_service
self.input_type = input_type
self.output_type = output_type
def _ParseOptions(message, string):
"""Parses serialized options.
This helper function is used to parse serialized options in generated
proto2 files. It must not be used outside proto2.
"""
message.ParseFromString(string)
return message;

950
froofle/protobuf/descriptor_pb2.py
View File

@ -1,950 +0,0 @@
#!/usr/bin/python2.4
# Generated by the protocol buffer compiler. DO NOT EDIT!
from froofle.protobuf import descriptor
from froofle.protobuf import message
from froofle.protobuf import reflection
from froofle.protobuf import service
from froofle.protobuf import service_reflection
_FIELDDESCRIPTORPROTO_TYPE = descriptor.EnumDescriptor(
name='Type',
full_name='froofle.protobuf.FieldDescriptorProto.Type',
filename='Type',
values=[
descriptor.EnumValueDescriptor(
name='TYPE_DOUBLE', index=0, number=1,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='TYPE_FLOAT', index=1, number=2,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='TYPE_INT64', index=2, number=3,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='TYPE_UINT64', index=3, number=4,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='TYPE_INT32', index=4, number=5,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='TYPE_FIXED64', index=5, number=6,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='TYPE_FIXED32', index=6, number=7,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='TYPE_BOOL', index=7, number=8,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='TYPE_STRING', index=8, number=9,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='TYPE_GROUP', index=9, number=10,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='TYPE_MESSAGE', index=10, number=11,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='TYPE_BYTES', index=11, number=12,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='TYPE_UINT32', index=12, number=13,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='TYPE_ENUM', index=13, number=14,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='TYPE_SFIXED32', index=14, number=15,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='TYPE_SFIXED64', index=15, number=16,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='TYPE_SINT32', index=16, number=17,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='TYPE_SINT64', index=17, number=18,
options=None,
type=None),
],
options=None,
)
_FIELDDESCRIPTORPROTO_LABEL = descriptor.EnumDescriptor(
name='Label',
full_name='froofle.protobuf.FieldDescriptorProto.Label',
filename='Label',
values=[
descriptor.EnumValueDescriptor(
name='LABEL_OPTIONAL', index=0, number=1,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='LABEL_REQUIRED', index=1, number=2,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='LABEL_REPEATED', index=2, number=3,
options=None,
type=None),
],
options=None,
)
_FILEOPTIONS_OPTIMIZEMODE = descriptor.EnumDescriptor(
name='OptimizeMode',
full_name='froofle.protobuf.FileOptions.OptimizeMode',
filename='OptimizeMode',
values=[
descriptor.EnumValueDescriptor(
name='SPEED', index=0, number=1,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='CODE_SIZE', index=1, number=2,
options=None,
type=None),
],
options=None,
)
_FIELDOPTIONS_CTYPE = descriptor.EnumDescriptor(
name='CType',
full_name='froofle.protobuf.FieldOptions.CType',
filename='CType',
values=[
descriptor.EnumValueDescriptor(
name='CORD', index=0, number=1,
options=None,
type=None),
descriptor.EnumValueDescriptor(
name='STRING_PIECE', index=1, number=2,
options=None,
type=None),
],
options=None,
)
_FILEDESCRIPTORSET = descriptor.Descriptor(
name='FileDescriptorSet',
full_name='froofle.protobuf.FileDescriptorSet',
filename='froofle/protobuf/descriptor.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='file', full_name='froofle.protobuf.FileDescriptorSet.file', index=0,
number=1, type=11, cpp_type=10, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
],
options=None)
_FILEDESCRIPTORPROTO = descriptor.Descriptor(
name='FileDescriptorProto',
full_name='froofle.protobuf.FileDescriptorProto',
filename='froofle/protobuf/descriptor.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='name', full_name='froofle.protobuf.FileDescriptorProto.name', index=0,
number=1, type=9, cpp_type=9, label=1,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='package', full_name='froofle.protobuf.FileDescriptorProto.package', index=1,
number=2, type=9, cpp_type=9, label=1,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='dependency', full_name='froofle.protobuf.FileDescriptorProto.dependency', index=2,
number=3, type=9, cpp_type=9, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='message_type', full_name='froofle.protobuf.FileDescriptorProto.message_type', index=3,
number=4, type=11, cpp_type=10, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='enum_type', full_name='froofle.protobuf.FileDescriptorProto.enum_type', index=4,
number=5, type=11, cpp_type=10, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='service', full_name='froofle.protobuf.FileDescriptorProto.service', index=5,
number=6, type=11, cpp_type=10, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='extension', full_name='froofle.protobuf.FileDescriptorProto.extension', index=6,
number=7, type=11, cpp_type=10, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='options', full_name='froofle.protobuf.FileDescriptorProto.options', index=7,
number=8, type=11, cpp_type=10, label=1,
default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
],
options=None)
_DESCRIPTORPROTO_EXTENSIONRANGE = descriptor.Descriptor(
name='ExtensionRange',
full_name='froofle.protobuf.DescriptorProto.ExtensionRange',
filename='froofle/protobuf/descriptor.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='start', full_name='froofle.protobuf.DescriptorProto.ExtensionRange.start', index=0,
number=1, type=5, cpp_type=1, label=1,
default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='end', full_name='froofle.protobuf.DescriptorProto.ExtensionRange.end', index=1,
number=2, type=5, cpp_type=1, label=1,
default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
],
options=None)
_DESCRIPTORPROTO = descriptor.Descriptor(
name='DescriptorProto',
full_name='froofle.protobuf.DescriptorProto',
filename='froofle/protobuf/descriptor.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='name', full_name='froofle.protobuf.DescriptorProto.name', index=0,
number=1, type=9, cpp_type=9, label=1,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='field', full_name='froofle.protobuf.DescriptorProto.field', index=1,
number=2, type=11, cpp_type=10, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='extension', full_name='froofle.protobuf.DescriptorProto.extension', index=2,
number=6, type=11, cpp_type=10, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='nested_type', full_name='froofle.protobuf.DescriptorProto.nested_type', index=3,
number=3, type=11, cpp_type=10, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='enum_type', full_name='froofle.protobuf.DescriptorProto.enum_type', index=4,
number=4, type=11, cpp_type=10, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='extension_range', full_name='froofle.protobuf.DescriptorProto.extension_range', index=5,
number=5, type=11, cpp_type=10, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='options', full_name='froofle.protobuf.DescriptorProto.options', index=6,
number=7, type=11, cpp_type=10, label=1,
default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
],
options=None)
_FIELDDESCRIPTORPROTO = descriptor.Descriptor(
name='FieldDescriptorProto',
full_name='froofle.protobuf.FieldDescriptorProto',
filename='froofle/protobuf/descriptor.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='name', full_name='froofle.protobuf.FieldDescriptorProto.name', index=0,
number=1, type=9, cpp_type=9, label=1,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='number', full_name='froofle.protobuf.FieldDescriptorProto.number', index=1,
number=3, type=5, cpp_type=1, label=1,
default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='label', full_name='froofle.protobuf.FieldDescriptorProto.label', index=2,
number=4, type=14, cpp_type=8, label=1,
default_value=1,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='type', full_name='froofle.protobuf.FieldDescriptorProto.type', index=3,
number=5, type=14, cpp_type=8, label=1,
default_value=1,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='type_name', full_name='froofle.protobuf.FieldDescriptorProto.type_name', index=4,
number=6, type=9, cpp_type=9, label=1,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='extendee', full_name='froofle.protobuf.FieldDescriptorProto.extendee', index=5,
number=2, type=9, cpp_type=9, label=1,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='default_value', full_name='froofle.protobuf.FieldDescriptorProto.default_value', index=6,
number=7, type=9, cpp_type=9, label=1,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='options', full_name='froofle.protobuf.FieldDescriptorProto.options', index=7,
number=8, type=11, cpp_type=10, label=1,
default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
_FIELDDESCRIPTORPROTO_TYPE,
_FIELDDESCRIPTORPROTO_LABEL,
],
options=None)
_ENUMDESCRIPTORPROTO = descriptor.Descriptor(
name='EnumDescriptorProto',
full_name='froofle.protobuf.EnumDescriptorProto',
filename='froofle/protobuf/descriptor.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='name', full_name='froofle.protobuf.EnumDescriptorProto.name', index=0,
number=1, type=9, cpp_type=9, label=1,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='value', full_name='froofle.protobuf.EnumDescriptorProto.value', index=1,
number=2, type=11, cpp_type=10, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='options', full_name='froofle.protobuf.EnumDescriptorProto.options', index=2,
number=3, type=11, cpp_type=10, label=1,
default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
],
options=None)
_ENUMVALUEDESCRIPTORPROTO = descriptor.Descriptor(
name='EnumValueDescriptorProto',
full_name='froofle.protobuf.EnumValueDescriptorProto',
filename='froofle/protobuf/descriptor.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='name', full_name='froofle.protobuf.EnumValueDescriptorProto.name', index=0,
number=1, type=9, cpp_type=9, label=1,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='number', full_name='froofle.protobuf.EnumValueDescriptorProto.number', index=1,
number=2, type=5, cpp_type=1, label=1,
default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='options', full_name='froofle.protobuf.EnumValueDescriptorProto.options', index=2,
number=3, type=11, cpp_type=10, label=1,
default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
],
options=None)
_SERVICEDESCRIPTORPROTO = descriptor.Descriptor(
name='ServiceDescriptorProto',
full_name='froofle.protobuf.ServiceDescriptorProto',
filename='froofle/protobuf/descriptor.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='name', full_name='froofle.protobuf.ServiceDescriptorProto.name', index=0,
number=1, type=9, cpp_type=9, label=1,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='method', full_name='froofle.protobuf.ServiceDescriptorProto.method', index=1,
number=2, type=11, cpp_type=10, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='options', full_name='froofle.protobuf.ServiceDescriptorProto.options', index=2,
number=3, type=11, cpp_type=10, label=1,
default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
],
options=None)
_METHODDESCRIPTORPROTO = descriptor.Descriptor(
name='MethodDescriptorProto',
full_name='froofle.protobuf.MethodDescriptorProto',
filename='froofle/protobuf/descriptor.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='name', full_name='froofle.protobuf.MethodDescriptorProto.name', index=0,
number=1, type=9, cpp_type=9, label=1,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='input_type', full_name='froofle.protobuf.MethodDescriptorProto.input_type', index=1,
number=2, type=9, cpp_type=9, label=1,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='output_type', full_name='froofle.protobuf.MethodDescriptorProto.output_type', index=2,
number=3, type=9, cpp_type=9, label=1,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='options', full_name='froofle.protobuf.MethodDescriptorProto.options', index=3,
number=4, type=11, cpp_type=10, label=1,
default_value=None,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
],
options=None)
_FILEOPTIONS = descriptor.Descriptor(
name='FileOptions',
full_name='froofle.protobuf.FileOptions',
filename='froofle/protobuf/descriptor.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='java_package', full_name='froofle.protobuf.FileOptions.java_package', index=0,
number=1, type=9, cpp_type=9, label=1,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='java_outer_classname', full_name='froofle.protobuf.FileOptions.java_outer_classname', index=1,
number=8, type=9, cpp_type=9, label=1,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='java_multiple_files', full_name='froofle.protobuf.FileOptions.java_multiple_files', index=2,
number=10, type=8, cpp_type=7, label=1,
default_value=False,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='optimize_for', full_name='froofle.protobuf.FileOptions.optimize_for', index=3,
number=9, type=14, cpp_type=8, label=1,
default_value=2,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='uninterpreted_option', full_name='froofle.protobuf.FileOptions.uninterpreted_option', index=4,
number=999, type=11, cpp_type=10, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
_FILEOPTIONS_OPTIMIZEMODE,
],
options=None)
_MESSAGEOPTIONS = descriptor.Descriptor(
name='MessageOptions',
full_name='froofle.protobuf.MessageOptions',
filename='froofle/protobuf/descriptor.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='message_set_wire_format', full_name='froofle.protobuf.MessageOptions.message_set_wire_format', index=0,
number=1, type=8, cpp_type=7, label=1,
default_value=False,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='uninterpreted_option', full_name='froofle.protobuf.MessageOptions.uninterpreted_option', index=1,
number=999, type=11, cpp_type=10, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
],
options=None)
_FIELDOPTIONS = descriptor.Descriptor(
name='FieldOptions',
full_name='froofle.protobuf.FieldOptions',
filename='froofle/protobuf/descriptor.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='ctype', full_name='froofle.protobuf.FieldOptions.ctype', index=0,
number=1, type=14, cpp_type=8, label=1,
default_value=1,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='experimental_map_key', full_name='froofle.protobuf.FieldOptions.experimental_map_key', index=1,
number=9, type=9, cpp_type=9, label=1,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='uninterpreted_option', full_name='froofle.protobuf.FieldOptions.uninterpreted_option', index=2,
number=999, type=11, cpp_type=10, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
_FIELDOPTIONS_CTYPE,
],
options=None)
_ENUMOPTIONS = descriptor.Descriptor(
name='EnumOptions',
full_name='froofle.protobuf.EnumOptions',
filename='froofle/protobuf/descriptor.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='uninterpreted_option', full_name='froofle.protobuf.EnumOptions.uninterpreted_option', index=0,
number=999, type=11, cpp_type=10, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
],
options=None)
_ENUMVALUEOPTIONS = descriptor.Descriptor(
name='EnumValueOptions',
full_name='froofle.protobuf.EnumValueOptions',
filename='froofle/protobuf/descriptor.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='uninterpreted_option', full_name='froofle.protobuf.EnumValueOptions.uninterpreted_option', index=0,
number=999, type=11, cpp_type=10, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
],
options=None)
_SERVICEOPTIONS = descriptor.Descriptor(
name='ServiceOptions',
full_name='froofle.protobuf.ServiceOptions',
filename='froofle/protobuf/descriptor.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='uninterpreted_option', full_name='froofle.protobuf.ServiceOptions.uninterpreted_option', index=0,
number=999, type=11, cpp_type=10, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
],
options=None)
_METHODOPTIONS = descriptor.Descriptor(
name='MethodOptions',
full_name='froofle.protobuf.MethodOptions',
filename='froofle/protobuf/descriptor.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='uninterpreted_option', full_name='froofle.protobuf.MethodOptions.uninterpreted_option', index=0,
number=999, type=11, cpp_type=10, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
],
options=None)
_UNINTERPRETEDOPTION_NAMEPART = descriptor.Descriptor(
name='NamePart',
full_name='froofle.protobuf.UninterpretedOption.NamePart',
filename='froofle/protobuf/descriptor.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='name_part', full_name='froofle.protobuf.UninterpretedOption.NamePart.name_part', index=0,
number=1, type=9, cpp_type=9, label=2,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='is_extension', full_name='froofle.protobuf.UninterpretedOption.NamePart.is_extension', index=1,
number=2, type=8, cpp_type=7, label=2,
default_value=False,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
],
options=None)
_UNINTERPRETEDOPTION = descriptor.Descriptor(
name='UninterpretedOption',
full_name='froofle.protobuf.UninterpretedOption',
filename='froofle/protobuf/descriptor.proto',
containing_type=None,
fields=[
descriptor.FieldDescriptor(
name='name', full_name='froofle.protobuf.UninterpretedOption.name', index=0,
number=2, type=11, cpp_type=10, label=3,
default_value=[],
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='identifier_value', full_name='froofle.protobuf.UninterpretedOption.identifier_value', index=1,
number=3, type=9, cpp_type=9, label=1,
default_value=unicode("", "utf-8"),
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='positive_int_value', full_name='froofle.protobuf.UninterpretedOption.positive_int_value', index=2,
number=4, type=4, cpp_type=4, label=1,
default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='negative_int_value', full_name='froofle.protobuf.UninterpretedOption.negative_int_value', index=3,
number=5, type=3, cpp_type=2, label=1,
default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='double_value', full_name='froofle.protobuf.UninterpretedOption.double_value', index=4,
number=6, type=1, cpp_type=5, label=1,
default_value=0,
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
descriptor.FieldDescriptor(
name='string_value', full_name='froofle.protobuf.UninterpretedOption.string_value', index=5,
number=7, type=12, cpp_type=9, label=1,
default_value="",
message_type=None, enum_type=None, containing_type=None,
is_extension=False, extension_scope=None,
options=None),
],
extensions=[
],
nested_types=[], # TODO(robinson): Implement.
enum_types=[
],
options=None)
_FILEDESCRIPTORSET.fields_by_name['file'].message_type = _FILEDESCRIPTORPROTO
_FILEDESCRIPTORPROTO.fields_by_name['message_type'].message_type = _DESCRIPTORPROTO
_FILEDESCRIPTORPROTO.fields_by_name['enum_type'].message_type = _ENUMDESCRIPTORPROTO
_FILEDESCRIPTORPROTO.fields_by_name['service'].message_type = _SERVICEDESCRIPTORPROTO
_FILEDESCRIPTORPROTO.fields_by_name['extension'].message_type = _FIELDDESCRIPTORPROTO
_FILEDESCRIPTORPROTO.fields_by_name['options'].message_type = _FILEOPTIONS
_DESCRIPTORPROTO.fields_by_name['field'].message_type = _FIELDDESCRIPTORPROTO
_DESCRIPTORPROTO.fields_by_name['extension'].message_type = _FIELDDESCRIPTORPROTO
_DESCRIPTORPROTO.fields_by_name['nested_type'].message_type = _DESCRIPTORPROTO
_DESCRIPTORPROTO.fields_by_name['enum_type'].message_type = _ENUMDESCRIPTORPROTO
_DESCRIPTORPROTO.fields_by_name['extension_range'].message_type = _DESCRIPTORPROTO_EXTENSIONRANGE
_DESCRIPTORPROTO.fields_by_name['options'].message_type = _MESSAGEOPTIONS
_FIELDDESCRIPTORPROTO.fields_by_name['label'].enum_type = _FIELDDESCRIPTORPROTO_LABEL
_FIELDDESCRIPTORPROTO.fields_by_name['type'].enum_type = _FIELDDESCRIPTORPROTO_TYPE
_FIELDDESCRIPTORPROTO.fields_by_name['options'].message_type = _FIELDOPTIONS
_ENUMDESCRIPTORPROTO.fields_by_name['value'].message_type = _ENUMVALUEDESCRIPTORPROTO
_ENUMDESCRIPTORPROTO.fields_by_name['options'].message_type = _ENUMOPTIONS
_ENUMVALUEDESCRIPTORPROTO.fields_by_name['options'].message_type = _ENUMVALUEOPTIONS
_SERVICEDESCRIPTORPROTO.fields_by_name['method'].message_type = _METHODDESCRIPTORPROTO
_SERVICEDESCRIPTORPROTO.fields_by_name['options'].message_type = _SERVICEOPTIONS
_METHODDESCRIPTORPROTO.fields_by_name['options'].message_type = _METHODOPTIONS
_FILEOPTIONS.fields_by_name['optimize_for'].enum_type = _FILEOPTIONS_OPTIMIZEMODE
_FILEOPTIONS.fields_by_name['uninterpreted_option'].message_type = _UNINTERPRETEDOPTION
_MESSAGEOPTIONS.fields_by_name['uninterpreted_option'].message_type = _UNINTERPRETEDOPTION
_FIELDOPTIONS.fields_by_name['ctype'].enum_type = _FIELDOPTIONS_CTYPE
_FIELDOPTIONS.fields_by_name['uninterpreted_option'].message_type = _UNINTERPRETEDOPTION
_ENUMOPTIONS.fields_by_name['uninterpreted_option'].message_type = _UNINTERPRETEDOPTION
_ENUMVALUEOPTIONS.fields_by_name['uninterpreted_option'].message_type = _UNINTERPRETEDOPTION
_SERVICEOPTIONS.fields_by_name['uninterpreted_option'].message_type = _UNINTERPRETEDOPTION
_METHODOPTIONS.fields_by_name['uninterpreted_option'].message_type = _UNINTERPRETEDOPTION
_UNINTERPRETEDOPTION.fields_by_name['name'].message_type = _UNINTERPRETEDOPTION_NAMEPART
class FileDescriptorSet(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
DESCRIPTOR = _FILEDESCRIPTORSET
class FileDescriptorProto(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
DESCRIPTOR = _FILEDESCRIPTORPROTO
class DescriptorProto(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
class ExtensionRange(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
DESCRIPTOR = _DESCRIPTORPROTO_EXTENSIONRANGE
DESCRIPTOR = _DESCRIPTORPROTO
class FieldDescriptorProto(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
DESCRIPTOR = _FIELDDESCRIPTORPROTO
class EnumDescriptorProto(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
DESCRIPTOR = _ENUMDESCRIPTORPROTO
class EnumValueDescriptorProto(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
DESCRIPTOR = _ENUMVALUEDESCRIPTORPROTO
class ServiceDescriptorProto(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
DESCRIPTOR = _SERVICEDESCRIPTORPROTO
class MethodDescriptorProto(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
DESCRIPTOR = _METHODDESCRIPTORPROTO
class FileOptions(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
DESCRIPTOR = _FILEOPTIONS
class MessageOptions(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
DESCRIPTOR = _MESSAGEOPTIONS
class FieldOptions(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
DESCRIPTOR = _FIELDOPTIONS
class EnumOptions(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
DESCRIPTOR = _ENUMOPTIONS
class EnumValueOptions(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
DESCRIPTOR = _ENUMVALUEOPTIONS
class ServiceOptions(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
DESCRIPTOR = _SERVICEOPTIONS
class MethodOptions(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
DESCRIPTOR = _METHODOPTIONS
class UninterpretedOption(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
class NamePart(message.Message):
__metaclass__ = reflection.GeneratedProtocolMessageType
DESCRIPTOR = _UNINTERPRETEDOPTION_NAMEPART
DESCRIPTOR = _UNINTERPRETEDOPTION

0
froofle/protobuf/internal/__init__.py
View File

209
froofle/protobuf/internal/decoder.py
View File

@ -1,209 +0,0 @@
# Protocol Buffers - Google's data interchange format
# Copyright 2008 Google Inc. All rights reserved.
# http://code.google.com/p/protobuf/
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""Class for decoding protocol buffer primitives.
Contains the logic for decoding every logical protocol field type
from one of the 5 physical wire types.
"""
__author__ = 'robinson@google.com (Will Robinson)'
import struct
from froofle.protobuf import message
from froofle.protobuf.internal import input_stream
from froofle.protobuf.internal import wire_format
# Note that much of this code is ported from //net/proto/ProtocolBuffer, and
# that the interface is strongly inspired by WireFormat from the C++ proto2
# implementation.
class Decoder(object):
"""Decodes logical protocol buffer fields from the wire."""
def __init__(self, s):
"""Initializes the decoder to read from s.
Args:
s: An immutable sequence of bytes, which must be accessible
via the Python buffer() primitive (i.e., buffer(s)).
"""
self._stream = input_stream.InputStream(s)
def EndOfStream(self):
"""Returns true iff we've reached the end of the bytes we're reading."""
return self._stream.EndOfStream()
def Position(self):
"""Returns the 0-indexed position in |s|."""
return self._stream.Position()
def ReadFieldNumberAndWireType(self):
"""Reads a tag from the wire. Returns a (field_number, wire_type) pair."""
tag_and_type = self.ReadUInt32()
return wire_format.UnpackTag(tag_and_type)
def SkipBytes(self, bytes):
"""Skips the specified number of bytes on the wire."""
self._stream.SkipBytes(bytes)
# Note that the Read*() methods below are not exactly symmetrical with the
# corresponding Encoder.Append*() methods. Those Encoder methods first
# encode a tag, but the Read*() methods below assume that the tag has already
# been read, and that the client wishes to read a field of the specified type
# starting at the current position.
def ReadInt32(self):
"""Reads and returns a signed, varint-encoded, 32-bit integer."""
return self._stream.ReadVarint32()
def ReadInt64(self):
"""Reads and returns a signed, varint-encoded, 64-bit integer."""
return self._stream.ReadVarint64()
def ReadUInt32(self):
"""Reads and returns an signed, varint-encoded, 32-bit integer."""
return self._stream.ReadVarUInt32()
def ReadUInt64(self):
"""Reads and returns an signed, varint-encoded,64-bit integer."""
return self._stream.ReadVarUInt64()
def ReadSInt32(self):
"""Reads and returns a signed, zigzag-encoded, varint-encoded,
32-bit integer."""
return wire_format.ZigZagDecode(self._stream.ReadVarUInt32())
def ReadSInt64(self):
"""Reads and returns a signed, zigzag-encoded, varint-encoded,
64-bit integer."""
return wire_format.ZigZagDecode(self._stream.ReadVarUInt64())
def ReadFixed32(self):
"""Reads and returns an unsigned, fixed-width, 32-bit integer."""
return self._stream.ReadLittleEndian32()
def ReadFixed64(self):
"""Reads and returns an unsigned, fixed-width, 64-bit integer."""
return self._stream.ReadLittleEndian64()
def ReadSFixed32(self):
"""Reads and returns a signed, fixed-width, 32-bit integer."""
value = self._stream.ReadLittleEndian32()
if value >= (1 << 31):
value -= (1 << 32)
return value
def ReadSFixed64(self):
"""Reads and returns a signed, fixed-width, 64-bit integer."""
value = self._stream.ReadLittleEndian64()
if value >= (1 << 63):
value -= (1 << 64)
return value
def ReadFloat(self):
"""Reads and returns a 4-byte floating-point number."""
serialized = self._stream.ReadBytes(4)
return struct.unpack('f', serialized)[0]
def ReadDouble(self):
"""Reads and returns an 8-byte floating-point number."""
serialized = self._stream.ReadBytes(8)
return struct.unpack('d', serialized)[0]
def ReadBool(self):
"""Reads and returns a bool."""
i = self._stream.ReadVarUInt32()
return bool(i)
def ReadEnum(self):
"""Reads and returns an enum value."""
return self._stream.ReadVarUInt32()
def ReadString(self):
"""Reads and returns a length-delimited string."""
bytes = self.ReadBytes()
return unicode(bytes, 'utf-8')
def ReadBytes(self):
"""Reads and returns a length-delimited byte sequence."""
length = self._stream.ReadVarUInt32()
return self._stream.ReadBytes(length)
def ReadMessageInto(self, msg):
"""Calls msg.MergeFromString() to merge
length-delimited serialized message data into |msg|.
REQUIRES: The decoder must be positioned at the serialized "length"
prefix to a length-delmiited serialized message.
POSTCONDITION: The decoder is positioned just after the
serialized message, and we have merged those serialized
contents into |msg|.
"""
length = self._stream.ReadVarUInt32()
sub_buffer = self._stream.GetSubBuffer(length)
num_bytes_used = msg.MergeFromString(sub_buffer)
if num_bytes_used != length:
raise message.DecodeError(
'Submessage told to deserialize from %d-byte encoding, '
'but used only %d bytes' % (length, num_bytes_used))
self._stream.SkipBytes(num_bytes_used)
def ReadGroupInto(self, expected_field_number, group):
"""Calls group.MergeFromString() to merge
END_GROUP-delimited serialized message data into |group|.
We'll raise an exception if we don't find an END_GROUP
tag immediately after the serialized message contents.
REQUIRES: The decoder is positioned just after the START_GROUP
tag for this group.
POSTCONDITION: The decoder is positioned just after the
END_GROUP tag for this group, and we have merged
the contents of the group into |group|.
"""
sub_buffer = self._stream.GetSubBuffer() # No a priori length limit.
num_bytes_used = group.MergeFromString(sub_buffer)
if num_bytes_used < 0:
raise message.DecodeError('Group message reported negative bytes read.')
self._stream.SkipBytes(num_bytes_used)
field_number, field_type = self.ReadFieldNumberAndWireType()
if field_type != wire_format.WIRETYPE_END_GROUP:
raise message.DecodeError('Group message did not end with an END_GROUP.')
if field_number != expected_field_number:
raise message.DecodeError('END_GROUP tag had field '
'number %d, was expecting field number %d' % (
field_number, expected_field_number))
# We're now positioned just after the END_GROUP tag. Perfect.

206
froofle/protobuf/internal/encoder.py
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@ -1,206 +0,0 @@
# Protocol Buffers - Google's data interchange format
# Copyright 2008 Google Inc. All rights reserved.
# http://code.google.com/p/protobuf/
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""Class for encoding protocol message primitives.
Contains the logic for encoding every logical protocol field type
into one of the 5 physical wire types.
"""
__author__ = 'robinson@google.com (Will Robinson)'
import struct
from froofle.protobuf import message
from froofle.protobuf.internal import wire_format
from froofle.protobuf.internal import output_stream
# Note that much of this code is ported from //net/proto/ProtocolBuffer, and
# that the interface is strongly inspired by WireFormat from the C++ proto2
# implementation.
class Encoder(object):
"""Encodes logical protocol buffer fields to the wire format."""
def __init__(self):
self._stream = output_stream.OutputStream()
def ToString(self):
"""Returns all values encoded in this object as a string."""
return self._stream.ToString()
# All the Append*() methods below first append a tag+type pair to the buffer
# before appending the specified value.
def AppendInt32(self, field_number, value):
"""Appends a 32-bit integer to our buffer, varint-encoded."""
self._AppendTag(field_number, wire_format.WIRETYPE_VARINT)
self._stream.AppendVarint32(value)
def AppendInt64(self, field_number, value):
"""Appends a 64-bit integer to our buffer, varint-encoded."""
self._AppendTag(field_number, wire_format.WIRETYPE_VARINT)
self._stream.AppendVarint64(value)
def AppendUInt32(self, field_number, unsigned_value):
"""Appends an unsigned 32-bit integer to our buffer, varint-encoded."""
self._AppendTag(field_number, wire_format.WIRETYPE_VARINT)
self._stream.AppendVarUInt32(unsigned_value)
def AppendUInt64(self, field_number, unsigned_value):
"""Appends an unsigned 64-bit integer to our buffer, varint-encoded."""
self._AppendTag(field_number, wire_format.WIRETYPE_VARINT)
self._stream.AppendVarUInt64(unsigned_value)
def AppendSInt32(self, field_number, value):
"""Appends a 32-bit integer to our buffer, zigzag-encoded and then
varint-encoded.
"""
self._AppendTag(field_number, wire_format.WIRETYPE_VARINT)
zigzag_value = wire_format.ZigZagEncode(value)
self._stream.AppendVarUInt32(zigzag_value)
def AppendSInt64(self, field_number, value):
"""Appends a 64-bit integer to our buffer, zigzag-encoded and then
varint-encoded.
"""
self._AppendTag(field_number, wire_format.WIRETYPE_VARINT)
zigzag_value = wire_format.ZigZagEncode(value)
self._stream.AppendVarUInt64(zigzag_value)
def AppendFixed32(self, field_number, unsigned_value):
"""Appends an unsigned 32-bit integer to our buffer, in little-endian
byte-order.
"""
self._AppendTag(field_number, wire_format.WIRETYPE_FIXED32)
self._stream.AppendLittleEndian32(unsigned_value)
def AppendFixed64(self, field_number, unsigned_value):
"""Appends an unsigned 64-bit integer to our buffer, in little-endian
byte-order.
"""
self._AppendTag(field_number, wire_format.WIRETYPE_FIXED64)
self._stream.AppendLittleEndian64(unsigned_value)
def AppendSFixed32(self, field_number, value):
"""Appends a signed 32-bit integer to our buffer, in little-endian
byte-order.
"""
sign = (value & 0x80000000) and -1 or 0
if value >> 32 != sign:
raise message.EncodeError('SFixed32 out of range: %d' % value)
self._AppendTag(field_number, wire_format.WIRETYPE_FIXED32)
self._stream.AppendLittleEndian32(value & 0xffffffff)
def AppendSFixed64(self, field_number, value):
"""Appends a signed 64-bit integer to our buffer, in little-endian
byte-order.
"""
sign = (value & 0x8000000000000000) and -1 or 0
if value >> 64 != sign:
raise message.EncodeError('SFixed64 out of range: %d' % value)
self._AppendTag(field_number, wire_format.WIRETYPE_FIXED64)
self._stream.AppendLittleEndian64(value & 0xffffffffffffffff)
def AppendFloat(self, field_number, value):
"""Appends a floating-point number to our buffer."""
self._AppendTag(field_number, wire_format.WIRETYPE_FIXED32)
self._stream.AppendRawBytes(struct.pack('f', value))
def AppendDouble(self, field_number, value):
"""Appends a double-precision floating-point number to our buffer."""
self._AppendTag(field_number, wire_format.WIRETYPE_FIXED64)
self._stream.AppendRawBytes(struct.pack('d', value))
def AppendBool(self, field_number, value):
"""Appends a boolean to our buffer."""
self.AppendInt32(field_number, value)
def AppendEnum(self, field_number, value):
"""Appends an enum value to our buffer."""
self.AppendInt32(field_number, value)
def AppendString(self, field_number, value):
"""Appends a length-prefixed unicode string, encoded as UTF-8 to our buffer,
with the length varint-encoded.
"""
self.AppendBytes(field_number, value.encode('utf-8'))
def AppendBytes(self, field_number, value):
"""Appends a length-prefixed sequence of bytes to our buffer, with the
length varint-encoded.
"""
self._AppendTag(field_number, wire_format.WIRETYPE_LENGTH_DELIMITED)
self._stream.AppendVarUInt32(len(value))
self._stream.AppendRawBytes(value)
# TODO(robinson): For AppendGroup() and AppendMessage(), we'd really like to
# avoid the extra string copy here. We can do so if we widen the Message
# interface to be able to serialize to a stream in addition to a string. The
# challenge when thinking ahead to the Python/C API implementation of Message
# is finding a stream-like Python thing to which we can write raw bytes
# from C. I'm not sure such a thing exists(?). (array.array is pretty much
# what we want, but it's not directly exposed in the Python/C API).
def AppendGroup(self, field_number, group):
"""Appends a group to our buffer.
"""
self._AppendTag(field_number, wire_format.WIRETYPE_START_GROUP)
self._stream.AppendRawBytes(group.SerializeToString())
self._AppendTag(field_number, wire_format.WIRETYPE_END_GROUP)
def AppendMessage(self, field_number, msg):
"""Appends a nested message to our buffer.
"""
self._AppendTag(field_number, wire_format.WIRETYPE_LENGTH_DELIMITED)
self._stream.AppendVarUInt32(msg.ByteSize())
self._stream.AppendRawBytes(msg.SerializeToString())
def AppendMessageSetItem(self, field_number, msg):
"""Appends an item using the message set wire format.
The message set message looks like this:
message MessageSet {
repeated group Item = 1 {
required int32 type_id = 2;
required string message = 3;
}
}
"""
self._AppendTag(1, wire_format.WIRETYPE_START_GROUP)
self.AppendInt32(2, field_number)
self.AppendMessage(3, msg)
self._AppendTag(1, wire_format.WIRETYPE_END_GROUP)
def _AppendTag(self, field_number, wire_type):
"""Appends a tag containing field number and wire type information."""
self._stream.AppendVarUInt32(wire_format.PackTag(field_number, wire_type))

326
froofle/protobuf/internal/input_stream.py
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# Protocol Buffers - Google's data interchange format
# Copyright 2008 Google Inc. All rights reserved.
# http://code.google.com/p/protobuf/
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""InputStream is the primitive interface for reading bits from the wire.
All protocol buffer deserialization can be expressed in terms of
the InputStream primitives provided here.
"""
__author__ = 'robinson@google.com (Will Robinson)'
import struct
from array import array
from froofle.protobuf import message
from froofle.protobuf.internal import wire_format
# Note that much of this code is ported from //net/proto/ProtocolBuffer, and
# that the interface is strongly inspired by CodedInputStream from the C++
# proto2 implementation.
class InputStreamBuffer(object):
"""Contains all logic for reading bits, and dealing with stream position.
If an InputStream method ever raises an exception, the stream is left
in an indeterminate state and is not safe for further use.
"""
def __init__(self, s):
# What we really want is something like array('B', s), where elements we
# read from the array are already given to us as one-byte integers. BUT
# using array() instead of buffer() would force full string copies to result
# from each GetSubBuffer() call.
#
# So, if the N serialized bytes of a single protocol buffer object are
# split evenly between 2 child messages, and so on recursively, using
# array('B', s) instead of buffer() would incur an additional N*logN bytes
# copied during deserialization.
#
# The higher constant overhead of having to ord() for every byte we read
# from the buffer in _ReadVarintHelper() could definitely lead to worse
# performance in many real-world scenarios, even if the asymptotic
# complexity is better. However, our real answer is that the mythical
# Python/C extension module output mode for the protocol compiler will
# be blazing-fast and will eliminate most use of this class anyway.
self._buffer = buffer(s)
self._pos = 0
def EndOfStream(self):
"""Returns true iff we're at the end of the stream.
If this returns true, then a call to any other InputStream method
will raise an exception.
"""
return self._pos >= len(self._buffer)
def Position(self):
"""Returns the current position in the stream, or equivalently, the
number of bytes read so far.
"""
return self._pos
def GetSubBuffer(self, size=None):
"""Returns a sequence-like object that represents a portion of our
underlying sequence.
Position 0 in the returned object corresponds to self.Position()
in this stream.
If size is specified, then the returned object ends after the
next "size" bytes in this stream. If size is not specified,
then the returned object ends at the end of this stream.
We guarantee that the returned object R supports the Python buffer
interface (and thus that the call buffer(R) will work).
Note that the returned buffer is read-only.
The intended use for this method is for nested-message and nested-group
deserialization, where we want to make a recursive MergeFromString()
call on the portion of the original sequence that contains the serialized
nested message. (And we'd like to do so without making unnecessary string
copies).
REQUIRES: size is nonnegative.
"""
# Note that buffer() doesn't perform any actual string copy.
if size is None:
return buffer(self._buffer, self._pos)
else:
if size < 0:
raise message.DecodeError('Negative size %d' % size)
return buffer(self._buffer, self._pos, size)
def SkipBytes(self, num_bytes):
"""Skip num_bytes bytes ahead, or go to the end of the stream, whichever
comes first.
REQUIRES: num_bytes is nonnegative.
"""
if num_bytes < 0:
raise message.DecodeError('Negative num_bytes %d' % num_bytes)
self._pos += num_bytes
self._pos = min(self._pos, len(self._buffer))
def ReadBytes(self, size):
"""Reads up to 'size' bytes from the stream, stopping early
only if we reach the end of the stream. Returns the bytes read
as a string.
"""
if size < 0:
raise message.DecodeError('Negative size %d' % size)
s = (self._buffer[self._pos : self._pos + size])
self._pos += len(s) # Only advance by the number of bytes actually read.
return s
def ReadLittleEndian32(self):
"""Interprets the next 4 bytes of the stream as a little-endian
encoded, unsiged 32-bit integer, and returns that integer.
"""
try:
i = struct.unpack(wire_format.FORMAT_UINT32_LITTLE_ENDIAN,
self._buffer[self._pos : self._pos + 4])
self._pos += 4
return i[0] # unpack() result is a 1-element tuple.
except struct.error, e:
raise message.DecodeError(e)
def ReadLittleEndian64(self):
"""Interprets the next 8 bytes of the stream as a little-endian
encoded, unsiged 64-bit integer, and returns that integer.
"""
try:
i = struct.unpack(wire_format.FORMAT_UINT64_LITTLE_ENDIAN,
self._buffer[self._pos : self._pos + 8])
self._pos += 8
return i[0] # unpack() result is a 1-element tuple.
except struct.error, e:
raise message.DecodeError(e)
def ReadVarint32(self):
"""Reads a varint from the stream, interprets this varint
as a signed, 32-bit integer, and returns the integer.
"""
i = self.ReadVarint64()
if not wire_format.INT32_MIN <= i <= wire_format.INT32_MAX:
raise message.DecodeError('Value out of range for int32: %d' % i)
return int(i)
def ReadVarUInt32(self):
"""Reads a varint from the stream, interprets this varint
as an unsigned, 32-bit integer, and returns the integer.
"""
i = self.ReadVarUInt64()
if i > wire_format.UINT32_MAX:
raise message.DecodeError('Value out of range for uint32: %d' % i)
return i
def ReadVarint64(self):
"""Reads a varint from the stream, interprets this varint
as a signed, 64-bit integer, and returns the integer.
"""
i = self.ReadVarUInt64()
if i > wire_format.INT64_MAX:
i -= (1 << 64)
return i
def ReadVarUInt64(self):
"""Reads a varint from the stream, interprets this varint
as an unsigned, 64-bit integer, and returns the integer.
"""
i = self._ReadVarintHelper()
if not 0 <= i <= wire_format.UINT64_MAX:
raise message.DecodeError('Value out of range for uint64: %d' % i)
return i
def _ReadVarintHelper(self):
"""Helper for the various varint-reading methods above.
Reads an unsigned, varint-encoded integer from the stream and
returns this integer.
Does no bounds checking except to ensure that we read at most as many bytes
as could possibly be present in a varint-encoded 64-bit number.
"""
result = 0
shift = 0
while 1:
if shift >= 64:
raise message.DecodeError('Too many bytes when decoding varint.')
try:
b = ord(self._buffer[self._pos])
except IndexError:
raise message.DecodeError('Truncated varint.')
self._pos += 1
result |= ((b & 0x7f) << shift)
shift += 7
if not (b & 0x80):
return result
class InputStreamArray(object):
def __init__(self, s):
self._buffer = array('B', s)
self._pos = 0
def EndOfStream(self):
return self._pos >= len(self._buffer)
def Position(self):
return self._pos
def GetSubBuffer(self, size=None):
if size is None:
return self._buffer[self._pos : ].tostring()
else:
if size < 0:
raise message.DecodeError('Negative size %d' % size)
return self._buffer[self._pos : self._pos + size].tostring()
def SkipBytes(self, num_bytes):
if num_bytes < 0:
raise message.DecodeError('Negative num_bytes %d' % num_bytes)
self._pos += num_bytes
self._pos = min(self._pos, len(self._buffer))
def ReadBytes(self, size):
if size < 0:
raise message.DecodeError('Negative size %d' % size)
s = self._buffer[self._pos : self._pos + size].tostring()
self._pos += len(s) # Only advance by the number of bytes actually read.
return s
def ReadLittleEndian32(self):
try:
i = struct.unpack(wire_format.FORMAT_UINT32_LITTLE_ENDIAN,
self._buffer[self._pos : self._pos + 4])
self._pos += 4
return i[0] # unpack() result is a 1-element tuple.
except struct.error, e:
raise message.DecodeError(e)
def ReadLittleEndian64(self):
try:
i = struct.unpack(wire_format.FORMAT_UINT64_LITTLE_ENDIAN,
self._buffer[self._pos : self._pos + 8])
self._pos += 8
return i[0] # unpack() result is a 1-element tuple.
except struct.error, e:
raise message.DecodeError(e)
def ReadVarint32(self):
i = self.ReadVarint64()
if not wire_format.INT32_MIN <= i <= wire_format.INT32_MAX:
raise message.DecodeError('Value out of range for int32: %d' % i)
return int(i)
def ReadVarUInt32(self):
i = self.ReadVarUInt64()
if i > wire_format.UINT32_MAX:
raise message.DecodeError('Value out of range for uint32: %d' % i)
return i
def ReadVarint64(self):
i = self.ReadVarUInt64()
if i > wire_format.INT64_MAX:
i -= (1 << 64)
return i
def ReadVarUInt64(self):
i = self._ReadVarintHelper()
if not 0 <= i <= wire_format.UINT64_MAX:
raise message.DecodeError('Value out of range for uint64: %d' % i)
return i
def _ReadVarintHelper(self):
result = 0
shift = 0
while 1:
if shift >= 64:
raise message.DecodeError('Too many bytes when decoding varint.')
try:
b = self._buffer[self._pos]
except IndexError:
raise message.DecodeError('Truncated varint.')
self._pos += 1
result |= ((b & 0x7f) << shift)
shift += 7
if not (b & 0x80):
return result
try:
buffer("")
InputStream = InputStreamBuffer
except NotImplementedError:
# Google App Engine: dev_appserver.py
InputStream = InputStreamArray
except RuntimeError:
# Google App Engine: production
InputStream = InputStreamArray

69
froofle/protobuf/internal/message_listener.py
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@ -1,69 +0,0 @@
# Protocol Buffers - Google's data interchange format
# Copyright 2008 Google Inc. All rights reserved.
# http://code.google.com/p/protobuf/
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""Defines a listener interface for observing certain
state transitions on Message objects.
Also defines a null implementation of this interface.
"""
__author__ = 'robinson@google.com (Will Robinson)'
class MessageListener(object):
"""Listens for transitions to nonempty and for invalidations of cached
byte sizes. Meant to be registered via Message._SetListener().
"""
def TransitionToNonempty(self):
"""Called the *first* time that this message becomes nonempty.
Implementations are free (but not required) to call this method multiple
times after the message has become nonempty.
"""
raise NotImplementedError
def ByteSizeDirty(self):
"""Called *every* time the cached byte size value
for this object is invalidated (transitions from being
"clean" to "dirty").
"""
raise NotImplementedError
class NullMessageListener(object):
"""No-op MessageListener implementation."""
def TransitionToNonempty(self):
pass
def ByteSizeDirty(self):
pass

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# Protocol Buffers - Google's data interchange format
# Copyright 2008 Google Inc. All rights reserved.
# http://code.google.com/p/protobuf/
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""OutputStream is the primitive interface for sticking bits on the wire.
All protocol buffer serialization can be expressed in terms of
the OutputStream primitives provided here.
"""
__author__ = 'robinson@google.com (Will Robinson)'
import array
import struct
from froofle.protobuf import message
from froofle.protobuf.internal import wire_format
# Note that much of this code is ported from //net/proto/ProtocolBuffer, and
# that the interface is strongly inspired by CodedOutputStream from the C++
# proto2 implementation.
class OutputStream(object):
"""Contains all logic for writing bits, and ToString() to get the result."""
def __init__(self):
self._buffer = array.array('B')
def AppendRawBytes(self, raw_bytes):
"""Appends raw_bytes to our internal buffer."""
self._buffer.fromstring(raw_bytes)
def AppendLittleEndian32(self, unsigned_value):
"""Appends an unsigned 32-bit integer to the internal buffer,
in little-endian byte order.
"""
if not 0 <= unsigned_value <= wire_format.UINT32_MAX:
raise message.EncodeError(
'Unsigned 32-bit out of range: %d' % unsigned_value)
self._buffer.fromstring(struct.pack(
wire_format.FORMAT_UINT32_LITTLE_ENDIAN, unsigned_value))
def AppendLittleEndian64(self, unsigned_value):
"""Appends an unsigned 64-bit integer to the internal buffer,
in little-endian byte order.
"""
if not 0 <= unsigned_value <= wire_format.UINT64_MAX:
raise message.EncodeError(
'Unsigned 64-bit out of range: %d' % unsigned_value)
self._buffer.fromstring(struct.pack(
wire_format.FORMAT_UINT64_LITTLE_ENDIAN, unsigned_value))
def AppendVarint32(self, value):
"""Appends a signed 32-bit integer to the internal buffer,
encoded as a varint. (Note that a negative varint32 will
always require 10 bytes of space.)
"""
if not wire_format.INT32_MIN <= value <= wire_format.INT32_MAX:
raise message.EncodeError('Value out of range: %d' % value)
self.AppendVarint64(value)
def AppendVarUInt32(self, value):
"""Appends an unsigned 32-bit integer to the internal buffer,
encoded as a varint.
"""
if not 0 <= value <= wire_format.UINT32_MAX:
raise message.EncodeError('Value out of range: %d' % value)
self.AppendVarUInt64(value)
def AppendVarint64(self, value):
"""Appends a signed 64-bit integer to the internal buffer,
encoded as a varint.
"""
if not wire_format.INT64_MIN <= value <= wire_format.INT64_MAX:
raise message.EncodeError('Value out of range: %d' % value)
if value < 0:
value += (1 << 64)
self.AppendVarUInt64(value)
def AppendVarUInt64(self, unsigned_value):
"""Appends an unsigned 64-bit integer to the internal buffer,
encoded as a varint.
"""
if not 0 <= unsigned_value <= wire_format.UINT64_MAX:
raise message.EncodeError('Value out of range: %d' % unsigned_value)
while True:
bits = unsigned_value & 0x7f
unsigned_value >>= 7
if not unsigned_value:
self._buffer.append(bits)
break
self._buffer.append(0x80|bits)
def ToString(self):
"""Returns a string containing the bytes in our internal buffer."""
return self._buffer.tostring()

268
froofle/protobuf/internal/type_checkers.py
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@ -1,268 +0,0 @@
# Protocol Buffers - Google's data interchange format
# Copyright 2008 Google Inc. All rights reserved.
# http://code.google.com/p/protobuf/
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""Provides type checking routines.
This module defines type checking utilities in the forms of dictionaries:
VALUE_CHECKERS: A dictionary of field types and a value validation object.
TYPE_TO_BYTE_SIZE_FN: A dictionary with field types and a size computing
function.
TYPE_TO_SERIALIZE_METHOD: A dictionary with field types and serialization
function.
FIELD_TYPE_TO_WIRE_TYPE: A dictionary with field typed and their
coresponding wire types.
TYPE_TO_DESERIALIZE_METHOD: A dictionary with field types and deserialization
function.
"""
__author__ = 'robinson@google.com (Will Robinson)'
from froofle.protobuf.internal import decoder
from froofle.protobuf.internal import encoder
from froofle.protobuf.internal import wire_format
from froofle.protobuf import descriptor
_FieldDescriptor = descriptor.FieldDescriptor
def GetTypeChecker(cpp_type, field_type):
"""Returns a type checker for a message field of the specified types.
Args:
cpp_type: C++ type of the field (see descriptor.py).
field_type: Protocol message field type (see descriptor.py).
Returns:
An instance of TypeChecker which can be used to verify the types
of values assigned to a field of the specified type.
"""
if (cpp_type == _FieldDescriptor.CPPTYPE_STRING and
field_type == _FieldDescriptor.TYPE_STRING):
return UnicodeValueChecker()
return _VALUE_CHECKERS[cpp_type]
# None of the typecheckers below make any attempt to guard against people
# subclassing builtin types and doing weird things. We're not trying to
# protect against malicious clients here, just people accidentally shooting
# themselves in the foot in obvious ways.
class TypeChecker(object):
"""Type checker used to catch type errors as early as possible
when the client is setting scalar fields in protocol messages.
"""
def __init__(self, *acceptable_types):
self._acceptable_types = acceptable_types
def CheckValue(self, proposed_value):
if not isinstance(proposed_value, self._acceptable_types):
message = ('%.1024r has type %s, but expected one of: %s' %
(proposed_value, type(proposed_value), self._acceptable_types))
raise TypeError(message)
# IntValueChecker and its subclasses perform integer type-checks
# and bounds-checks.
class IntValueChecker(object):
"""Checker used for integer fields. Performs type-check and range check."""
def CheckValue(self, proposed_value):
if not isinstance(proposed_value, (int, long)):
message = ('%.1024r has type %s, but expected one of: %s' %
(proposed_value, type(proposed_value), (int, long)))
raise TypeError(message)
if not self._MIN <= proposed_value <= self._MAX:
raise ValueError('Value out of range: %d' % proposed_value)
class UnicodeValueChecker(object):
"""Checker used for string fields."""
def CheckValue(self, proposed_value):
if not isinstance(proposed_value, (str, unicode)):
message = ('%.1024r has type %s, but expected one of: %s' %
(proposed_value, type(proposed_value), (str, unicode)))
raise TypeError(message)
# If the value is of type 'str' make sure that it is in 7-bit ASCII
# encoding.
if isinstance(proposed_value, str):
try:
unicode(proposed_value, 'ascii')
except UnicodeDecodeError:
raise ValueError('%.1024r isn\'t in 7-bit ASCII encoding.'
% (proposed_value))
class Int32ValueChecker(IntValueChecker):
# We're sure to use ints instead of longs here since comparison may be more
# efficient.
_MIN = -2147483648
_MAX = 2147483647
class Uint32ValueChecker(IntValueChecker):
_MIN = 0
_MAX = (1 << 32) - 1
class Int64ValueChecker(IntValueChecker):
_MIN = -(1 << 63)
_MAX = (1 << 63) - 1
class Uint64ValueChecker(IntValueChecker):
_MIN = 0
_MAX = (1 << 64) - 1
# Type-checkers for all scalar CPPTYPEs.
_VALUE_CHECKERS = {
_FieldDescriptor.CPPTYPE_INT32: Int32ValueChecker(),
_FieldDescriptor.CPPTYPE_INT64: Int64ValueChecker(),
_FieldDescriptor.CPPTYPE_UINT32: Uint32ValueChecker(),
_FieldDescriptor.CPPTYPE_UINT64: Uint64ValueChecker(),
_FieldDescriptor.CPPTYPE_DOUBLE: TypeChecker(
float, int, long),
_FieldDescriptor.CPPTYPE_FLOAT: TypeChecker(
float, int, long),
_FieldDescriptor.CPPTYPE_BOOL: TypeChecker(bool, int),
_FieldDescriptor.CPPTYPE_ENUM: Int32ValueChecker(),
_FieldDescriptor.CPPTYPE_STRING: TypeChecker(str),
}
# Map from field type to a function F, such that F(field_num, value)
# gives the total byte size for a value of the given type. This
# byte size includes tag information and any other additional space
# associated with serializing "value".
TYPE_TO_BYTE_SIZE_FN = {
_FieldDescriptor.TYPE_DOUBLE: wire_format.DoubleByteSize,
_FieldDescriptor.TYPE_FLOAT: wire_format.FloatByteSize,
_FieldDescriptor.TYPE_INT64: wire_format.Int64ByteSize,
_FieldDescriptor.TYPE_UINT64: wire_format.UInt64ByteSize,
_FieldDescriptor.TYPE_INT32: wire_format.Int32ByteSize,
_FieldDescriptor.TYPE_FIXED64: wire_format.Fixed64ByteSize,
_FieldDescriptor.TYPE_FIXED32: wire_format.Fixed32ByteSize,
_FieldDescriptor.TYPE_BOOL: wire_format.BoolByteSize,
_FieldDescriptor.TYPE_STRING: wire_format.StringByteSize,
_FieldDescriptor.TYPE_GROUP: wire_format.GroupByteSize,
_FieldDescriptor.TYPE_MESSAGE: wire_format.MessageByteSize,
_FieldDescriptor.TYPE_BYTES: wire_format.BytesByteSize,
_FieldDescriptor.TYPE_UINT32: wire_format.UInt32ByteSize,
_FieldDescriptor.TYPE_ENUM: wire_format.EnumByteSize,
_FieldDescriptor.TYPE_SFIXED32: wire_format.SFixed32ByteSize,
_FieldDescriptor.TYPE_SFIXED64: wire_format.SFixed64ByteSize,
_FieldDescriptor.TYPE_SINT32: wire_format.SInt32ByteSize,
_FieldDescriptor.TYPE_SINT64: wire_format.SInt64ByteSize
}
# Maps from field type to an unbound Encoder method F, such that
# F(encoder, field_number, value) will append the serialization
# of a value of this type to the encoder.
_Encoder = encoder.Encoder
TYPE_TO_SERIALIZE_METHOD = {
_FieldDescriptor.TYPE_DOUBLE: _Encoder.AppendDouble,
_FieldDescriptor.TYPE_FLOAT: _Encoder.AppendFloat,
_FieldDescriptor.TYPE_INT64: _Encoder.AppendInt64,
_FieldDescriptor.TYPE_UINT64: _Encoder.AppendUInt64,
_FieldDescriptor.TYPE_INT32: _Encoder.AppendInt32,
_FieldDescriptor.TYPE_FIXED64: _Encoder.AppendFixed64,
_FieldDescriptor.TYPE_FIXED32: _Encoder.AppendFixed32,
_FieldDescriptor.TYPE_BOOL: _Encoder.AppendBool,
_FieldDescriptor.TYPE_STRING: _Encoder.AppendString,
_FieldDescriptor.TYPE_GROUP: _Encoder.AppendGroup,
_FieldDescriptor.TYPE_MESSAGE: _Encoder.AppendMessage,
_FieldDescriptor.TYPE_BYTES: _Encoder.AppendBytes,
_FieldDescriptor.TYPE_UINT32: _Encoder.AppendUInt32,
_FieldDescriptor.TYPE_ENUM: _Encoder.AppendEnum,
_FieldDescriptor.TYPE_SFIXED32: _Encoder.AppendSFixed32,
_FieldDescriptor.TYPE_SFIXED64: _Encoder.AppendSFixed64,
_FieldDescriptor.TYPE_SINT32: _Encoder.AppendSInt32,
_FieldDescriptor.TYPE_SINT64: _Encoder.AppendSInt64,
}
# Maps from field type to expected wiretype.
FIELD_TYPE_TO_WIRE_TYPE = {
_FieldDescriptor.TYPE_DOUBLE: wire_format.WIRETYPE_FIXED64,
_FieldDescriptor.TYPE_FLOAT: wire_format.WIRETYPE_FIXED32,
_FieldDescriptor.TYPE_INT64: wire_format.WIRETYPE_VARINT,
_FieldDescriptor.TYPE_UINT64: wire_format.WIRETYPE_VARINT,
_FieldDescriptor.TYPE_INT32: wire_format.WIRETYPE_VARINT,
_FieldDescriptor.TYPE_FIXED64: wire_format.WIRETYPE_FIXED64,
_FieldDescriptor.TYPE_FIXED32: wire_format.WIRETYPE_FIXED32,
_FieldDescriptor.TYPE_BOOL: wire_format.WIRETYPE_VARINT,
_FieldDescriptor.TYPE_STRING:
wire_format.WIRETYPE_LENGTH_DELIMITED,
_FieldDescriptor.TYPE_GROUP: wire_format.WIRETYPE_START_GROUP,
_FieldDescriptor.TYPE_MESSAGE:
wire_format.WIRETYPE_LENGTH_DELIMITED,
_FieldDescriptor.TYPE_BYTES:
wire_format.WIRETYPE_LENGTH_DELIMITED,
_FieldDescriptor.TYPE_UINT32: wire_format.WIRETYPE_VARINT,
_FieldDescriptor.TYPE_ENUM: wire_format.WIRETYPE_VARINT,
_FieldDescriptor.TYPE_SFIXED32: wire_format.WIRETYPE_FIXED32,
_FieldDescriptor.TYPE_SFIXED64: wire_format.WIRETYPE_FIXED64,
_FieldDescriptor.TYPE_SINT32: wire_format.WIRETYPE_VARINT,
_FieldDescriptor.TYPE_SINT64: wire_format.WIRETYPE_VARINT,
}
# Maps from field type to an unbound Decoder method F,
# such that F(decoder) will read a field of the requested type.
#
# Note that Message and Group are intentionally missing here.
# They're handled by _RecursivelyMerge().
_Decoder = decoder.Decoder
TYPE_TO_DESERIALIZE_METHOD = {
_FieldDescriptor.TYPE_DOUBLE: _Decoder.ReadDouble,
_FieldDescriptor.TYPE_FLOAT: _Decoder.ReadFloat,
_FieldDescriptor.TYPE_INT64: _Decoder.ReadInt64,
_FieldDescriptor.TYPE_UINT64: _Decoder.ReadUInt64,
_FieldDescriptor.TYPE_INT32: _Decoder.ReadInt32,
_FieldDescriptor.TYPE_FIXED64: _Decoder.ReadFixed64,
_FieldDescriptor.TYPE_FIXED32: _Decoder.ReadFixed32,
_FieldDescriptor.TYPE_BOOL: _Decoder.ReadBool,
_FieldDescriptor.TYPE_STRING: _Decoder.ReadString,
_FieldDescriptor.TYPE_BYTES: _Decoder.ReadBytes,
_FieldDescriptor.TYPE_UINT32: _Decoder.ReadUInt32,
_FieldDescriptor.TYPE_ENUM: _Decoder.ReadEnum,
_FieldDescriptor.TYPE_SFIXED32: _Decoder.ReadSFixed32,
_FieldDescriptor.TYPE_SFIXED64: _Decoder.ReadSFixed64,
_FieldDescriptor.TYPE_SINT32: _Decoder.ReadSInt32,
_FieldDescriptor.TYPE_SINT64: _Decoder.ReadSInt64,
}

236
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@ -1,236 +0,0 @@
# Protocol Buffers - Google's data interchange format
# Copyright 2008 Google Inc. All rights reserved.
# http://code.google.com/p/protobuf/
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""Constants and static functions to support protocol buffer wire format."""
__author__ = 'robinson@google.com (Will Robinson)'
import struct
from froofle.protobuf import message
TAG_TYPE_BITS = 3 # Number of bits used to hold type info in a proto tag.
_TAG_TYPE_MASK = (1 << TAG_TYPE_BITS) - 1 # 0x7
# These numbers identify the wire type of a protocol buffer value.
# We use the least-significant TAG_TYPE_BITS bits of the varint-encoded
# tag-and-type to store one of these WIRETYPE_* constants.
# These values must match WireType enum in //net/proto2/public/wire_format.h.
WIRETYPE_VARINT = 0
WIRETYPE_FIXED64 = 1
WIRETYPE_LENGTH_DELIMITED = 2
WIRETYPE_START_GROUP = 3
WIRETYPE_END_GROUP = 4
WIRETYPE_FIXED32 = 5
_WIRETYPE_MAX = 5
# Bounds for various integer types.
INT32_MAX = int((1 << 31) - 1)
INT32_MIN = int(-(1 << 31))
UINT32_MAX = (1 << 32) - 1
INT64_MAX = (1 << 63) - 1
INT64_MIN = -(1 << 63)
UINT64_MAX = (1 << 64) - 1
# "struct" format strings that will encode/decode the specified formats.
FORMAT_UINT32_LITTLE_ENDIAN = '<I'
FORMAT_UINT64_LITTLE_ENDIAN = '<Q'
# We'll have to provide alternate implementations of AppendLittleEndian*() on
# any architectures where these checks fail.
if struct.calcsize(FORMAT_UINT32_LITTLE_ENDIAN) != 4:
raise AssertionError('Format "I" is not a 32-bit number.')
if struct.calcsize(FORMAT_UINT64_LITTLE_ENDIAN) != 8:
raise AssertionError('Format "Q" is not a 64-bit number.')
def PackTag(field_number, wire_type):
"""Returns an unsigned 32-bit integer that encodes the field number and
wire type information in standard protocol message wire format.
Args:
field_number: Expected to be an integer in the range [1, 1 << 29)
wire_type: One of the WIRETYPE_* constants.
"""
if not 0 <= wire_type <= _WIRETYPE_MAX:
raise message.EncodeError('Unknown wire type: %d' % wire_type)
return (field_number << TAG_TYPE_BITS) | wire_type
def UnpackTag(tag):
"""The inverse of PackTag(). Given an unsigned 32-bit number,
returns a (field_number, wire_type) tuple.
"""
return (tag >> TAG_TYPE_BITS), (tag & _TAG_TYPE_MASK)
def ZigZagEncode(value):
"""ZigZag Transform: Encodes signed integers so that they can be
effectively used with varint encoding. See wire_format.h for
more details.
"""
if value >= 0:
return value << 1
return (value << 1) ^ (~0)
def ZigZagDecode(value):
"""Inverse of ZigZagEncode()."""
if not value & 0x1:
return value >> 1
return (value >> 1) ^ (~0)
# The *ByteSize() functions below return the number of bytes required to
# serialize "field number + type" information and then serialize the value.
def Int32ByteSize(field_number, int32):
return Int64ByteSize(field_number, int32)
def Int64ByteSize(field_number, int64):
# Have to convert to uint before calling UInt64ByteSize().
return UInt64ByteSize(field_number, 0xffffffffffffffff & int64)
def UInt32ByteSize(field_number, uint32):
return UInt64ByteSize(field_number, uint32)
def UInt64ByteSize(field_number, uint64):
return _TagByteSize(field_number) + _VarUInt64ByteSizeNoTag(uint64)
def SInt32ByteSize(field_number, int32):
return UInt32ByteSize(field_number, ZigZagEncode(int32))
def SInt64ByteSize(field_number, int64):
return UInt64ByteSize(field_number, ZigZagEncode(int64))
def Fixed32ByteSize(field_number, fixed32):
return _TagByteSize(field_number) + 4
def Fixed64ByteSize(field_number, fixed64):
return _TagByteSize(field_number) + 8
def SFixed32ByteSize(field_number, sfixed32):
return _TagByteSize(field_number) + 4
def SFixed64ByteSize(field_number, sfixed64):
return _TagByteSize(field_number) + 8
def FloatByteSize(field_number, flt):
return _TagByteSize(field_number) + 4
def DoubleByteSize(field_number, double):
return _TagByteSize(field_number) + 8
def BoolByteSize(field_number, b):
return _TagByteSize(field_number) + 1
def EnumByteSize(field_number, enum):
return UInt32ByteSize(field_number, enum)
def StringByteSize(field_number, string):
return BytesByteSize(field_number, string.encode('utf-8'))
def BytesByteSize(field_number, b):
return (_TagByteSize(field_number)
+ _VarUInt64ByteSizeNoTag(len(b))
+ len(b))
def GroupByteSize(field_number, message):
return (2 * _TagByteSize(field_number) # START and END group.
+ message.ByteSize())
def MessageByteSize(field_number, message):
return (_TagByteSize(field_number)
+ _VarUInt64ByteSizeNoTag(message.ByteSize())
+ message.ByteSize())
def MessageSetItemByteSize(field_number, msg):
# First compute the sizes of the tags.
# There are 2 tags for the beginning and ending of the repeated group, that
# is field number 1, one with field number 2 (type_id) and one with field
# number 3 (message).
total_size = (2 * _TagByteSize(1) + _TagByteSize(2) + _TagByteSize(3))
# Add the number of bytes for type_id.
total_size += _VarUInt64ByteSizeNoTag(field_number)
message_size = msg.ByteSize()
# The number of bytes for encoding the length of the message.
total_size += _VarUInt64ByteSizeNoTag(message_size)
# The size of the message.
total_size += message_size
return total_size
# Private helper functions for the *ByteSize() functions above.
def _TagByteSize(field_number):
"""Returns the bytes required to serialize a tag with this field number."""
# Just pass in type 0, since the type won't affect the tag+type size.
return _VarUInt64ByteSizeNoTag(PackTag(field_number, 0))
def _VarUInt64ByteSizeNoTag(uint64):
"""Returns the bytes required to serialize a single varint.
uint64 must be unsigned.
"""
if uint64 > UINT64_MAX:
raise message.EncodeError('Value out of range: %d' % uint64)
bytes = 1
while uint64 > 0x7f:
bytes += 1
uint64 >>= 7
return bytes

246
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@ -1,246 +0,0 @@
# Protocol Buffers - Google's data interchange format
# Copyright 2008 Google Inc. All rights reserved.
# http://code.google.com/p/protobuf/
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# TODO(robinson): We should just make these methods all "pure-virtual" and move
# all implementation out, into reflection.py for now.
"""Contains an abstract base class for protocol messages."""
__author__ = 'robinson@google.com (Will Robinson)'
from froofle.protobuf import text_format
class Error(Exception): pass
class DecodeError(Error): pass
class EncodeError(Error): pass
class Message(object):
"""Abstract base class for protocol messages.
Protocol message classes are almost always generated by the protocol
compiler. These generated types subclass Message and implement the methods
shown below.
TODO(robinson): Link to an HTML document here.
TODO(robinson): Document that instances of this class will also
have an Extensions attribute with __getitem__ and __setitem__.
Again, not sure how to best convey this.
TODO(robinson): Document that the class must also have a static
RegisterExtension(extension_field) method.
Not sure how to best express at this point.
"""
# TODO(robinson): Document these fields and methods.
__slots__ = []
DESCRIPTOR = None
def __eq__(self, other_msg):
raise NotImplementedError
def __ne__(self, other_msg):
# Can't just say self != other_msg, since that would infinitely recurse. :)
return not self == other_msg
def __str__(self):
return text_format.MessageToString(self)
def MergeFrom(self, other_msg):
"""Merges the contents of the specified message into current message.
This method merges the contents of the specified message into the current
message. Singular fields that are set in the specified message overwrite
the corresponding fields in the current message. Repeated fields are
appended. Singular sub-messages and groups are recursively merged.
Args:
other_msg: Message to merge into the current message.
"""
raise NotImplementedError
def CopyFrom(self, other_msg):
"""Copies the content of the specified message into the current message.
The method clears the current message and then merges the specified
message using MergeFrom.
Args:
other_msg: Message to copy into the current one.
"""
if self == other_msg:
return
self.Clear()
self.MergeFrom(other_msg)
def Clear(self):
"""Clears all data that was set in the message."""
raise NotImplementedError
def IsInitialized(self):
"""Checks if the message is initialized.
Returns:
The method returns True if the message is initialized (i.e. all of its
required fields are set).
"""
raise NotImplementedError
# TODO(robinson): MergeFromString() should probably return None and be
# implemented in terms of a helper that returns the # of bytes read. Our
# deserialization routines would use the helper when recursively
# deserializing, but the end user would almost always just want the no-return
# MergeFromString().
def MergeFromString(self, serialized):
"""Merges serialized protocol buffer data into this message.
When we find a field in |serialized| that is already present
in this message:
- If it's a "repeated" field, we append to the end of our list.
- Else, if it's a scalar, we overwrite our field.
- Else, (it's a nonrepeated composite), we recursively merge
into the existing composite.
TODO(robinson): Document handling of unknown fields.
Args:
serialized: Any object that allows us to call buffer(serialized)
to access a string of bytes using the buffer interface.
TODO(robinson): When we switch to a helper, this will return None.
Returns:
The number of bytes read from |serialized|.
For non-group messages, this will always be len(serialized),
but for messages which are actually groups, this will
generally be less than len(serialized), since we must
stop when we reach an END_GROUP tag. Note that if
we *do* stop because of an END_GROUP tag, the number
of bytes returned does not include the bytes
for the END_GROUP tag information.
"""
raise NotImplementedError
def ParseFromString(self, serialized):
"""Like MergeFromString(), except we clear the object first."""
self.Clear()
self.MergeFromString(serialized)
def SerializeToString(self):
"""Serializes the protocol message to a binary string.
Returns:
A binary string representation of the message if all of the required
fields in the message are set (i.e. the message is initialized).
Raises:
message.EncodeError if the message isn't initialized.
"""
raise NotImplementedError
def SerializePartialToString(self):
"""Serializes the protocol message to a binary string.
This method is similar to SerializeToString but doesn't check if the
message is initialized.
Returns:
A string representation of the partial message.
"""
raise NotImplementedError
# TODO(robinson): Decide whether we like these better
# than auto-generated has_foo() and clear_foo() methods
# on the instances themselves. This way is less consistent
# with C++, but it makes reflection-type access easier and
# reduces the number of magically autogenerated things.
#
# TODO(robinson): Be sure to document (and test) exactly
# which field names are accepted here. Are we case-sensitive?
# What do we do with fields that share names with Python keywords
# like 'lambda' and 'yield'?
#
# nnorwitz says:
# """
# Typically (in python), an underscore is appended to names that are
# keywords. So they would become lambda_ or yield_.
# """
def ListFields(self, field_name):
"""Returns a list of (FieldDescriptor, value) tuples for all
fields in the message which are not empty. A singular field is non-empty
if HasField() would return true, and a repeated field is non-empty if
it contains at least one element. The fields are ordered by field
number"""
raise NotImplementedError
def HasField(self, field_name):
raise NotImplementedError
def ClearField(self, field_name):
raise NotImplementedError
def HasExtension(self, extension_handle):
raise NotImplementedError
def ClearExtension(self, extension_handle):
raise NotImplementedError
def ByteSize(self):
"""Returns the serialized size of this message.
Recursively calls ByteSize() on all contained messages.
"""
raise NotImplementedError
def _SetListener(self, message_listener):
"""Internal method used by the protocol message implementation.
Clients should not call this directly.
Sets a listener that this message will call on certain state transitions.
The purpose of this method is to register back-edges from children to
parents at runtime, for the purpose of setting "has" bits and
byte-size-dirty bits in the parent and ancestor objects whenever a child or
descendant object is modified.
If the client wants to disconnect this Message from the object tree, she
explicitly sets callback to None.
If message_listener is None, unregisters any existing listener. Otherwise,
message_listener must implement the MessageListener interface in
internal/message_listener.py, and we discard any listener registered
via a previous _SetListener() call.
"""
raise NotImplementedError

1653
froofle/protobuf/reflection.py
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208
froofle/protobuf/service.py
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# Protocol Buffers - Google's data interchange format
# Copyright 2008 Google Inc. All rights reserved.
# http://code.google.com/p/protobuf/
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""Declares the RPC service interfaces.
This module declares the abstract interfaces underlying proto2 RPC
services. These are intented to be independent of any particular RPC
implementation, so that proto2 services can be used on top of a variety
of implementations.
"""
__author__ = 'petar@google.com (Petar Petrov)'
class Service(object):
"""Abstract base interface for protocol-buffer-based RPC services.
Services themselves are abstract classes (implemented either by servers or as
stubs), but they subclass this base interface. The methods of this
interface can be used to call the methods of the service without knowing
its exact type at compile time (analogous to the Message interface).
"""
def GetDescriptor(self):
"""Retrieves this service's descriptor."""
raise NotImplementedError
def CallMethod(self, method_descriptor, rpc_controller,
request, done):
"""Calls a method of the service specified by method_descriptor.
Preconditions:
* method_descriptor.service == GetDescriptor
* request is of the exact same classes as returned by
GetRequestClass(method).
* After the call has started, the request must not be modified.
* "rpc_controller" is of the correct type for the RPC implementation being
used by this Service. For stubs, the "correct type" depends on the
RpcChannel which the stub is using.
Postconditions:
* "done" will be called when the method is complete. This may be
before CallMethod() returns or it may be at some point in the future.
"""
raise NotImplementedError
def GetRequestClass(self, method_descriptor):
"""Returns the class of the request message for the specified method.
CallMethod() requires that the request is of a particular subclass of
Message. GetRequestClass() gets the default instance of this required
type.
Example:
method = service.GetDescriptor().FindMethodByName("Foo")
request = stub.GetRequestClass(method)()
request.ParseFromString(input)
service.CallMethod(method, request, callback)
"""
raise NotImplementedError
def GetResponseClass(self, method_descriptor):
"""Returns the class of the response message for the specified method.
This method isn't really needed, as the RpcChannel's CallMethod constructs
the response protocol message. It's provided anyway in case it is useful
for the caller to know the response type in advance.
"""
raise NotImplementedError
class RpcController(object):
"""An RpcController mediates a single method call.
The primary purpose of the controller is to provide a way to manipulate
settings specific to the RPC implementation and to find out about RPC-level
errors. The methods provided by the RpcController interface are intended
to be a "least common denominator" set of features which we expect all
implementations to support. Specific implementations may provide more
advanced features (e.g. deadline propagation).
"""
# Client-side methods below
def Reset(self):
"""Resets the RpcController to its initial state.
After the RpcController has been reset, it may be reused in
a new call. Must not be called while an RPC is in progress.
"""
raise NotImplementedError
def Failed(self):
"""Returns true if the call failed.
After a call has finished, returns true if the call failed. The possible
reasons for failure depend on the RPC implementation. Failed() must not
be called before a call has finished. If Failed() returns true, the
contents of the response message are undefined.
"""
raise NotImplementedError
def ErrorText(self):
"""If Failed is true, returns a human-readable description of the error."""
raise NotImplementedError
def StartCancel(self):
"""Initiate cancellation.
Advises the RPC system that the caller desires that the RPC call be
canceled. The RPC system may cancel it immediately, may wait awhile and
then cancel it, or may not even cancel the call at all. If the call is
canceled, the "done" callback will still be called and the RpcController
will indicate that the call failed at that time.
"""
raise NotImplementedError
# Server-side methods below
def SetFailed(self, reason):
"""Sets a failure reason.
Causes Failed() to return true on the client side. "reason" will be
incorporated into the message returned by ErrorText(). If you find
you need to return machine-readable information about failures, you
should incorporate it into your response protocol buffer and should
NOT call SetFailed().
"""
raise NotImplementedError
def IsCanceled(self):
"""Checks if the client cancelled the RPC.
If true, indicates that the client canceled the RPC, so the server may
as well give up on replying to it. The server should still call the
final "done" callback.
"""
raise NotImplementedError
def NotifyOnCancel(self, callback):
"""Sets a callback to invoke on cancel.
Asks that the given callback be called when the RPC is canceled. The
callback will always be called exactly once. If the RPC completes without
being canceled, the callback will be called after completion. If the RPC
has already been canceled when NotifyOnCancel() is called, the callback
will be called immediately.
NotifyOnCancel() must be called no more than once per request.
"""
raise NotImplementedError
class RpcChannel(object):
"""Abstract interface for an RPC channel.
An RpcChannel represents a communication line to a service which can be used
to call that service's methods. The service may be running on another
machine. Normally, you should not use an RpcChannel directly, but instead
construct a stub {@link Service} wrapping it. Example:
Example:
RpcChannel channel = rpcImpl.Channel("remotehost.example.com:1234")
RpcController controller = rpcImpl.Controller()
MyService service = MyService_Stub(channel)
service.MyMethod(controller, request, callback)
"""
def CallMethod(self, method_descriptor, rpc_controller,
request, response_class, done):
"""Calls the method identified by the descriptor.
Call the given method of the remote service. The signature of this
procedure looks the same as Service.CallMethod(), but the requirements
are less strict in one important way: the request object doesn't have to
be of any specific class as long as its descriptor is method.input_type.
"""
raise NotImplementedError

289
froofle/protobuf/service_reflection.py
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@ -1,289 +0,0 @@
# Protocol Buffers - Google's data interchange format
# Copyright 2008 Google Inc. All rights reserved.
# http://code.google.com/p/protobuf/
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""Contains metaclasses used to create protocol service and service stub
classes from ServiceDescriptor objects at runtime.
The GeneratedServiceType and GeneratedServiceStubType metaclasses are used to
inject all useful functionality into the classes output by the protocol
compiler at compile-time.
"""
__author__ = 'petar@google.com (Petar Petrov)'
class GeneratedServiceType(type):
"""Metaclass for service classes created at runtime from ServiceDescriptors.
Implementations for all methods described in the Service class are added here
by this class. We also create properties to allow getting/setting all fields
in the protocol message.
The protocol compiler currently uses this metaclass to create protocol service
classes at runtime. Clients can also manually create their own classes at
runtime, as in this example:
mydescriptor = ServiceDescriptor(.....)
class MyProtoService(service.Service):
__metaclass__ = GeneratedServiceType
DESCRIPTOR = mydescriptor
myservice_instance = MyProtoService()
...
"""
_DESCRIPTOR_KEY = 'DESCRIPTOR'
def __init__(cls, name, bases, dictionary):
"""Creates a message service class.
Args:
name: Name of the class (ignored, but required by the metaclass
protocol).
bases: Base classes of the class being constructed.
dictionary: The class dictionary of the class being constructed.
dictionary[_DESCRIPTOR_KEY] must contain a ServiceDescriptor object
describing this protocol service type.
"""
# Don't do anything if this class doesn't have a descriptor. This happens
# when a service class is subclassed.
if GeneratedServiceType._DESCRIPTOR_KEY not in dictionary:
return
descriptor = dictionary[GeneratedServiceType._DESCRIPTOR_KEY]
service_builder = _ServiceBuilder(descriptor)
service_builder.BuildService(cls)
class GeneratedServiceStubType(GeneratedServiceType):
"""Metaclass for service stubs created at runtime from ServiceDescriptors.
This class has similar responsibilities as GeneratedServiceType, except that
it creates the service stub classes.
"""
_DESCRIPTOR_KEY = 'DESCRIPTOR'
def __init__(cls, name, bases, dictionary):
"""Creates a message service stub class.
Args:
name: Name of the class (ignored, here).
bases: Base classes of the class being constructed.
dictionary: The class dictionary of the class being constructed.
dictionary[_DESCRIPTOR_KEY] must contain a ServiceDescriptor object
describing this protocol service type.
"""
super(GeneratedServiceStubType, cls).__init__(name, bases, dictionary)
# Don't do anything if this class doesn't have a descriptor. This happens
# when a service stub is subclassed.
if GeneratedServiceStubType._DESCRIPTOR_KEY not in dictionary:
return
descriptor = dictionary[GeneratedServiceStubType._DESCRIPTOR_KEY]
service_stub_builder = _ServiceStubBuilder(descriptor)
service_stub_builder.BuildServiceStub(cls)
class _ServiceBuilder(object):
"""This class constructs a protocol service class using a service descriptor.
Given a service descriptor, this class constructs a class that represents
the specified service descriptor. One service builder instance constructs
exactly one service class. That means all instances of that class share the
same builder.
"""
def __init__(self, service_descriptor):
"""Initializes an instance of the service class builder.
Args:
service_descriptor: ServiceDescriptor to use when constructing the
service class.
"""
self.descriptor = service_descriptor
def BuildService(self, cls):
"""Constructs the service class.
Args:
cls: The class that will be constructed.
"""
# CallMethod needs to operate with an instance of the Service class. This
# internal wrapper function exists only to be able to pass the service
# instance to the method that does the real CallMethod work.
def _WrapCallMethod(srvc, method_descriptor,
rpc_controller, request, callback):
self._CallMethod(srvc, method_descriptor,
rpc_controller, request, callback)
self.cls = cls
cls.CallMethod = _WrapCallMethod
cls.GetDescriptor = self._GetDescriptor
cls.GetRequestClass = self._GetRequestClass
cls.GetResponseClass = self._GetResponseClass
for method in self.descriptor.methods:
setattr(cls, method.name, self._GenerateNonImplementedMethod(method))
def _GetDescriptor(self):
"""Retrieves the service descriptor.
Returns:
The descriptor of the service (of type ServiceDescriptor).
"""
return self.descriptor
def _CallMethod(self, srvc, method_descriptor,
rpc_controller, request, callback):
"""Calls the method described by a given method descriptor.
Args:
srvc: Instance of the service for which this method is called.
method_descriptor: Descriptor that represent the method to call.
rpc_controller: RPC controller to use for this method's execution.
request: Request protocol message.
callback: A callback to invoke after the method has completed.
"""
if method_descriptor.containing_service != self.descriptor:
raise RuntimeError(
'CallMethod() given method descriptor for wrong service type.')
method = getattr(srvc, method_descriptor.name)
method(rpc_controller, request, callback)
def _GetRequestClass(self, method_descriptor):
"""Returns the class of the request protocol message.
Args:
method_descriptor: Descriptor of the method for which to return the
request protocol message class.
Returns:
A class that represents the input protocol message of the specified
method.
"""
if method_descriptor.containing_service != self.descriptor:
raise RuntimeError(
'GetRequestClass() given method descriptor for wrong service type.')
return method_descriptor.input_type._concrete_class
def _GetResponseClass(self, method_descriptor):
"""Returns the class of the response protocol message.
Args:
method_descriptor: Descriptor of the method for which to return the
response protocol message class.
Returns:
A class that represents the output protocol message of the specified
method.
"""
if method_descriptor.containing_service != self.descriptor:
raise RuntimeError(
'GetResponseClass() given method descriptor for wrong service type.')
return method_descriptor.output_type._concrete_class
def _GenerateNonImplementedMethod(self, method):
"""Generates and returns a method that can be set for a service methods.
Args:
method: Descriptor of the service method for which a method is to be
generated.
Returns:
A method that can be added to the service class.
"""
return lambda inst, rpc_controller, request, callback: (
self._NonImplementedMethod(method.name, rpc_controller, callback))
def _NonImplementedMethod(self, method_name, rpc_controller, callback):
"""The body of all methods in the generated service class.
Args:
method_name: Name of the method being executed.
rpc_controller: RPC controller used to execute this method.
callback: A callback which will be invoked when the method finishes.
"""
rpc_controller.SetFailed('Method %s not implemented.' % method_name)
callback(None)
class _ServiceStubBuilder(object):
"""Constructs a protocol service stub class using a service descriptor.
Given a service descriptor, this class constructs a suitable stub class.
A stub is just a type-safe wrapper around an RpcChannel which emulates a
local implementation of the service.
One service stub builder instance constructs exactly one class. It means all
instances of that class share the same service stub builder.
"""
def __init__(self, service_descriptor):
"""Initializes an instance of the service stub class builder.
Args:
service_descriptor: ServiceDescriptor to use when constructing the
stub class.
"""
self.descriptor = service_descriptor
def BuildServiceStub(self, cls):
"""Constructs the stub class.
Args:
cls: The class that will be constructed.
"""
def _ServiceStubInit(stub, rpc_channel):
stub.rpc_channel = rpc_channel
self.cls = cls
cls.__init__ = _ServiceStubInit
for method in self.descriptor.methods:
setattr(cls, method.name, self._GenerateStubMethod(method))
def _GenerateStubMethod(self, method):
return lambda inst, rpc_controller, request, callback: self._StubMethod(
inst, method, rpc_controller, request, callback)
def _StubMethod(self, stub, method_descriptor,
rpc_controller, request, callback):
"""The body of all service methods in the generated stub class.
Args:
stub: Stub instance.
method_descriptor: Descriptor of the invoked method.
rpc_controller: Rpc controller to execute the method.
request: Request protocol message.
callback: A callback to execute when the method finishes.
"""
stub.rpc_channel.CallMethod(
method_descriptor, rpc_controller, request,
method_descriptor.output_type._concrete_class, callback)

125
froofle/protobuf/text_format.py
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@ -1,125 +0,0 @@
# Protocol Buffers - Google's data interchange format
# Copyright 2008 Google Inc. All rights reserved.
# http://code.google.com/p/protobuf/
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
"""Contains routines for printing protocol messages in text format."""
__author__ = 'kenton@google.com (Kenton Varda)'
import cStringIO
from froofle.protobuf import descriptor
__all__ = [ 'MessageToString', 'PrintMessage', 'PrintField', 'PrintFieldValue' ]
def MessageToString(message):
out = cStringIO.StringIO()
PrintMessage(message, out)
result = out.getvalue()
out.close()
return result
def PrintMessage(message, out, indent = 0):
for field, value in message.ListFields():
if field.label == descriptor.FieldDescriptor.LABEL_REPEATED:
for element in value:
PrintField(field, element, out, indent)
else:
PrintField(field, value, out, indent)
def PrintField(field, value, out, indent = 0):
"""Print a single field name/value pair. For repeated fields, the value
should be a single element."""
out.write(' ' * indent);
if field.is_extension:
out.write('[')
if (field.containing_type.GetOptions().message_set_wire_format and
field.type == descriptor.FieldDescriptor.TYPE_MESSAGE and
field.message_type == field.extension_scope and
field.label == descriptor.FieldDescriptor.LABEL_OPTIONAL):
out.write(field.message_type.full_name)
else:
out.write(field.full_name)
out.write(']')
elif field.type == descriptor.FieldDescriptor.TYPE_GROUP:
# For groups, use the capitalized name.
out.write(field.message_type.name)
else:
out.write(field.name)
if field.cpp_type != descriptor.FieldDescriptor.CPPTYPE_MESSAGE:
# The colon is optional in this case, but our cross-language golden files
# don't include it.
out.write(': ')
PrintFieldValue(field, value, out, indent)
out.write('\n')
def PrintFieldValue(field, value, out, indent = 0):
"""Print a single field value (not including name). For repeated fields,
the value should be a single element."""
if field.cpp_type == descriptor.FieldDescriptor.CPPTYPE_MESSAGE:
out.write(' {\n')
PrintMessage(value, out, indent + 2)
out.write(' ' * indent + '}')
elif field.cpp_type == descriptor.FieldDescriptor.CPPTYPE_ENUM:
out.write(field.enum_type.values_by_number[value].name)
elif field.cpp_type == descriptor.FieldDescriptor.CPPTYPE_STRING:
out.write('\"')
out.write(_CEscape(value))
out.write('\"')
elif field.cpp_type == descriptor.FieldDescriptor.CPPTYPE_BOOL:
if value:
out.write("true")
else:
out.write("false")
else:
out.write(str(value))
# text.encode('string_escape') does not seem to satisfy our needs as it
# encodes unprintable characters using two-digit hex escapes whereas our
# C++ unescaping function allows hex escapes to be any length. So,
# "\0011".encode('string_escape') ends up being "\\x011", which will be
# decoded in C++ as a single-character string with char code 0x11.
def _CEscape(text):
def escape(c):
o = ord(c)
if o == 10: return r"\n" # optional escape
if o == 13: return r"\r" # optional escape
if o == 9: return r"\t" # optional escape
if o == 39: return r"\'" # optional escape
if o == 34: return r'\"' # necessary escape
if o == 92: return r"\\" # necessary escape
if o >= 127 or o < 32: return "\\%03o" % o # necessary escapes
return c
return "".join([escape(c) for c in text])

174
gerrit_upload.py
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@ -1,174 +0,0 @@
#
# Copyright (C) 2008 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import getpass
import os
import sys
from tempfile import mkstemp
from codereview.proto_client import HttpRpc, Proxy
from codereview.review_pb2 import ReviewService_Stub
from codereview.upload_bundle_pb2 import *
from git_command import GitCommand
from error import UploadError
try:
import readline
except ImportError:
pass
MAX_SEGMENT_SIZE = 1020 * 1024
def _GetRpcServer(email, server, save_cookies):
"""Returns an RpcServer.
Returns:
A new RpcServer, on which RPC calls can be made.
"""
def GetUserCredentials():
"""Prompts the user for a username and password."""
e = email
if e is None:
e = raw_input("Email: ").strip()
password = getpass.getpass("Password for %s: " % e)
return (e, password)
# If this is the dev_appserver, use fake authentication.
lc_server = server.lower()
if lc_server == "localhost" or lc_server.startswith("localhost:"):
if email is None:
email = "test@example.com"
server = HttpRpc(
server,
lambda: (email, "password"),
extra_headers={"Cookie":
'dev_appserver_login="%s:False"' % email})
# Don't try to talk to ClientLogin.
server.authenticated = True
return server
if save_cookies:
cookie_file = ".gerrit_cookies"
else:
cookie_file = None
return HttpRpc(server, GetUserCredentials,
cookie_file=cookie_file)
def UploadBundle(project,
server,
email,
dest_project,
dest_branch,
src_branch,
bases,
people,
replace_changes = None,
save_cookies=True):
srv = _GetRpcServer(email, server, save_cookies)
review = Proxy(ReviewService_Stub(srv))
tmp_fd, tmp_bundle = mkstemp(".bundle", ".gpq")
os.close(tmp_fd)
srcid = project.bare_git.rev_parse(src_branch)
revlist = project._revlist(src_branch, *bases)
if srcid not in revlist:
# This can happen if src_branch is an annotated tag
#
revlist.append(srcid)
revlist_size = len(revlist) * 42
try:
cmd = ['bundle', 'create', tmp_bundle, src_branch]
cmd.extend(bases)
if GitCommand(project, cmd).Wait() != 0:
raise UploadError('cannot create bundle')
fd = open(tmp_bundle, "rb")
bundle_id = None
segment_id = 0
next_data = fd.read(MAX_SEGMENT_SIZE - revlist_size)
while True:
this_data = next_data
next_data = fd.read(MAX_SEGMENT_SIZE)
segment_id += 1
if bundle_id is None:
req = UploadBundleRequest()
req.dest_project = str(dest_project)
req.dest_branch = str(dest_branch)
for e in people[0]:
req.reviewers.append(e)
for e in people[1]:
req.cc.append(e)
for c in revlist:
req.contained_object.append(c)
if replace_changes:
for change_id,commit_id in replace_changes.iteritems():
r = req.replace.add()
r.change_id = change_id
r.object_id = commit_id
else:
req = UploadBundleContinue()
req.bundle_id = bundle_id
req.segment_id = segment_id
req.bundle_data = this_data
if len(next_data) > 0:
req.partial_upload = True
else:
req.partial_upload = False
if bundle_id is None:
rsp = review.UploadBundle(req)
else:
rsp = review.ContinueBundle(req)
if rsp.status_code == UploadBundleResponse.CONTINUE:
bundle_id = rsp.bundle_id
elif rsp.status_code == UploadBundleResponse.RECEIVED:
bundle_id = rsp.bundle_id
return bundle_id
else:
if rsp.status_code == UploadBundleResponse.UNKNOWN_PROJECT:
reason = 'unknown project "%s"' % dest_project
elif rsp.status_code == UploadBundleResponse.UNKNOWN_BRANCH:
reason = 'unknown branch "%s"' % dest_branch
elif rsp.status_code == UploadBundleResponse.UNKNOWN_BUNDLE:
reason = 'unknown bundle'
elif rsp.status_code == UploadBundleResponse.NOT_BUNDLE_OWNER:
reason = 'not bundle owner'
elif rsp.status_code == UploadBundleResponse.BUNDLE_CLOSED:
reason = 'bundle closed'
elif rsp.status_code == UploadBundleResponse.UNAUTHORIZED_USER:
reason = ('Unauthorized user. Visit http://%s/hello to sign up.'
% server)
elif rsp.status_code == UploadBundleResponse.UNKNOWN_CHANGE:
reason = 'invalid change id'
elif rsp.status_code == UploadBundleResponse.CHANGE_CLOSED:
reason = 'one or more changes are closed'
elif rsp.status_code == UploadBundleResponse.UNKNOWN_EMAIL:
emails = [x for x in rsp.invalid_reviewers] + [
x for x in rsp.invalid_cc]
reason = 'invalid email addresses: %s' % ", ".join(emails)
else:
reason = 'unknown error ' + str(rsp.status_code)
raise UploadError(reason)
finally:
os.unlink(tmp_bundle)

29
project.py
View File

@ -24,10 +24,8 @@ import urllib2
from color import Coloring from color import Coloring
from git_command import GitCommand from git_command import GitCommand
from git_config import GitConfig, IsId from git_config import GitConfig, IsId
from gerrit_upload import UploadBundle
from error import GitError, ImportError, UploadError from error import GitError, ImportError, UploadError
from remote import Remote from remote import Remote
from codereview import proto_client
HEAD = 'HEAD' HEAD = 'HEAD'
R_HEADS = 'refs/heads/' R_HEADS = 'refs/heads/'
@ -481,32 +479,7 @@ class Project(object):
branch.remote.projectname = self.name branch.remote.projectname = self.name
branch.remote.Save() branch.remote.Save()
if branch.remote.ReviewProtocol == 'http-post': if branch.remote.ReviewProtocol == 'ssh':
base_list = []
for name, id in self._allrefs.iteritems():
if branch.remote.WritesTo(name):
base_list.append(not_rev(name))
if not base_list:
raise GitError('no base refs, cannot upload %s' % branch.name)
print >>sys.stderr, ''
_info("Uploading %s to %s:", branch.name, self.name)
try:
UploadBundle(project = self,
server = branch.remote.review,
email = self.UserEmail,
dest_project = branch.remote.projectname,
dest_branch = dest_branch,
src_branch = R_HEADS + branch.name,
bases = base_list,
people = people,
replace_changes = replace_changes)
except proto_client.ClientLoginError:
raise UploadError('Login failure')
except urllib2.HTTPError, e:
raise UploadError('HTTP error %d' % e.code)
elif branch.remote.ReviewProtocol == 'ssh':
if dest_branch.startswith(R_HEADS): if dest_branch.startswith(R_HEADS):
dest_branch = dest_branch[len(R_HEADS):] dest_branch = dest_branch[len(R_HEADS):]