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upload.py
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2631 lines (2314 loc) · 94.9 KB
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#!/usr/bin/env python
# coding: utf-8
#
# Copyright 2007 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.
"""Tool for uploading diffs from a version control system to the codereview app.
Usage summary: upload.py [options] [-- diff_options] [path...]
Diff options are passed to the diff command of the underlying system.
Supported version control systems:
Git
Mercurial
Subversion
Perforce
CVS
It is important for Git/Mercurial users to specify a tree/node/branch to diff
against by using the '--rev' option.
"""
# This code is derived from appcfg.py in the App Engine SDK (open source),
# and from ASPN recipe #146306.
import BaseHTTPServer
import ConfigParser
import cookielib
import errno
import fnmatch
import getpass
import logging
import marshal
import mimetypes
import optparse
import os
import re
import socket
import subprocess
import sys
import urllib
import urllib2
import urlparse
import webbrowser
# The md5 module was deprecated in Python 2.5.
try:
from hashlib import md5
except ImportError:
from md5 import md5
try:
import readline
except ImportError:
pass
try:
import keyring
except ImportError:
keyring = None
# The logging verbosity:
# 0: Errors only.
# 1: Status messages.
# 2: Info logs.
# 3: Debug logs.
verbosity = 1
# The account type used for authentication.
# This line could be changed by the review server (see handler for
# upload.py).
AUTH_ACCOUNT_TYPE = "GOOGLE"
# URL of the default review server. As for AUTH_ACCOUNT_TYPE, this line could be
# changed by the review server (see handler for upload.py).
DEFAULT_REVIEW_SERVER = "codereview.appspot.com"
# Max size of patch or base file.
MAX_UPLOAD_SIZE = 900 * 1024
# Constants for version control names. Used by GuessVCSName.
VCS_GIT = "Git"
VCS_MERCURIAL = "Mercurial"
VCS_SUBVERSION = "Subversion"
VCS_PERFORCE = "Perforce"
VCS_CVS = "CVS"
VCS_UNKNOWN = "Unknown"
VCS_ABBREVIATIONS = {
VCS_MERCURIAL.lower(): VCS_MERCURIAL,
"hg": VCS_MERCURIAL,
VCS_SUBVERSION.lower(): VCS_SUBVERSION,
"svn": VCS_SUBVERSION,
VCS_PERFORCE.lower(): VCS_PERFORCE,
"p4": VCS_PERFORCE,
VCS_GIT.lower(): VCS_GIT,
VCS_CVS.lower(): VCS_CVS,
}
# OAuth 2.0-Related Constants
LOCALHOST_IP = '127.0.0.1'
DEFAULT_OAUTH2_PORT = 8001
ACCESS_TOKEN_PARAM = 'access_token'
OAUTH_PATH = '/get-access-token'
OAUTH_PATH_PORT_TEMPLATE = OAUTH_PATH + '?port=%(port)d'
AUTH_HANDLER_RESPONSE = """\
<html>
<head>
<title>Authentication Status</title>
<script>
window.onload = function() {
window.close();
}
</script>
</head>
<body>
<p>The authentication flow has completed.</p>
</body>
</html>
"""
# Borrowed from google-api-python-client
OPEN_LOCAL_MESSAGE_TEMPLATE = """\
Your browser has been opened to visit:
%s
If your browser is on a different machine then exit and re-run
upload.py with the command-line parameter
--no_oauth2_webbrowser
"""
NO_OPEN_LOCAL_MESSAGE_TEMPLATE = """\
Go to the following link in your browser:
%s
and copy the access token.
"""
# The result of parsing Subversion's [auto-props] setting.
svn_auto_props_map = None
def GetEmail(prompt):
"""Prompts the user for their email address and returns it.
The last used email address is saved to a file and offered up as a suggestion
to the user. If the user presses enter without typing in anything the last
used email address is used. If the user enters a new address, it is saved
for next time we prompt.
"""
last_email_file_name = os.path.expanduser("~/.last_codereview_email_address")
last_email = ""
if os.path.exists(last_email_file_name):
try:
last_email_file = open(last_email_file_name, "r")
last_email = last_email_file.readline().strip("\n")
last_email_file.close()
prompt += " [%s]" % last_email
except IOError, e:
pass
email = raw_input(prompt + ": ").strip()
if email:
try:
last_email_file = open(last_email_file_name, "w")
last_email_file.write(email)
last_email_file.close()
except IOError, e:
pass
else:
email = last_email
return email
def StatusUpdate(msg):
"""Print a status message to stdout.
If 'verbosity' is greater than 0, print the message.
Args:
msg: The string to print.
"""
if verbosity > 0:
print msg
def ErrorExit(msg):
"""Print an error message to stderr and exit."""
print >>sys.stderr, msg
sys.exit(1)
class ClientLoginError(urllib2.HTTPError):
"""Raised to indicate there was 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"]
self.info = args.get("Info", None)
@property
def reason(self):
# reason is a property on python 2.7 but a member variable on <=2.6.
# self.args is modified so it cannot be used as-is so save the value in
# self._reason.
return self._reason
class AbstractRpcServer(object):
"""Provides a common interface for a simple RPC server."""
def __init__(self, host, auth_function, host_override=None,
extra_headers=None, save_cookies=False,
account_type=AUTH_ACCOUNT_TYPE):
"""Creates a new AbstractRpcServer.
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.
save_cookies: If True, save the authentication cookies to local disk.
If False, use an in-memory cookiejar instead. Subclasses must
implement this functionality. Defaults to False.
account_type: Account type used for authentication. Defaults to
AUTH_ACCOUNT_TYPE.
"""
self.host = host
if (not self.host.startswith("http://") and
not self.host.startswith("https://")):
self.host = "http://" + self.host
self.host_override = host_override
self.auth_function = auth_function
self.authenticated = False
self.extra_headers = extra_headers or {}
self.save_cookies = save_cookies
self.account_type = account_type
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 _GetOpener(self):
"""Returns an OpenerDirector for making HTTP requests.
Returns:
A urllib2.OpenerDirector object.
"""
raise NotImplementedError()
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, headers={"Accept": "text/plain"})
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 = self.account_type
if self.host.endswith(".google.com"):
# Needed for use inside Google.
account_type = "HOSTED"
req = self._CreateRequest(
url="https://www.google.com/accounts/ClientLogin",
data=urllib.urlencode({
"Email": email,
"Passwd": password,
"service": "ah",
"source": "rietveld-codereview-upload",
"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("%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)
self.authenticated = True
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 (or a 302) and
directs us to authenticate ourselves with ClientLogin.
"""
for i in range(3):
credentials = self.auth_function()
try:
auth_token = self._GetAuthToken(credentials[0], credentials[1])
except ClientLoginError, e:
print >>sys.stderr, ''
if e.reason == "BadAuthentication":
if e.info == "InvalidSecondFactor":
print >>sys.stderr, (
"Use an application-specific password instead "
"of your regular account password.\n"
"See http://www.google.com/"
"support/accounts/bin/answer.py?answer=185833")
else:
print >>sys.stderr, "Invalid username or password."
elif e.reason == "CaptchaRequired":
print >>sys.stderr, (
"Please go to\n"
"https://www.google.com/accounts/DisplayUnlockCaptcha\n"
"and verify you are a human. Then try again.\n"
"If you are using a Google Apps account the URL is:\n"
"https://www.google.com/a/yourdomain.com/UnlockCaptcha")
elif e.reason == "NotVerified":
print >>sys.stderr, "Account not verified."
elif e.reason == "TermsNotAgreed":
print >>sys.stderr, "User has not agreed to TOS."
elif e.reason == "AccountDeleted":
print >>sys.stderr, "The user account has been deleted."
elif e.reason == "AccountDisabled":
print >>sys.stderr, "The user account has been disabled."
break
elif e.reason == "ServiceDisabled":
print >>sys.stderr, ("The user's access to the service has been "
"disabled.")
elif e.reason == "ServiceUnavailable":
print >>sys.stderr, "The service is not available; try again later."
else:
# Unknown error.
raise
print >>sys.stderr, ''
continue
self._GetAuthCookie(auth_token)
return
def Send(self, request_path, payload=None,
content_type="application/octet-stream",
timeout=None,
extra_headers=None,
**kwargs):
"""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.
timeout: timeout in seconds; default None i.e. no timeout.
(Note: for large requests on OS X, the timeout doesn't work right.)
extra_headers: Dict containing additional HTTP headers that should be
included in the request (string header names mapped to their values),
or None to not include any additional headers.
kwargs: Any keyword arguments are converted into query string parameters.
Returns:
The response body, as a string.
"""
# TODO: Don't require authentication. Let the server say
# whether it is necessary.
if not self.authenticated:
self._Authenticate()
old_timeout = socket.getdefaulttimeout()
socket.setdefaulttimeout(timeout)
try:
tries = 0
while True:
tries += 1
args = dict(kwargs)
url = "%s%s" % (self.host, request_path)
if args:
url += "?" + urllib.urlencode(args)
req = self._CreateRequest(url=url, data=payload)
req.add_header("Content-Type", content_type)
if extra_headers:
for header, value in extra_headers.items():
req.add_header(header, value)
try:
f = self.opener.open(req)
response = f.read()
f.close()
return response
except urllib2.HTTPError, e:
if tries > 3:
raise
elif e.code == 401 or e.code == 302:
self._Authenticate()
elif e.code == 301:
# Handle permanent redirect manually.
url = e.info()["location"]
url_loc = urlparse.urlparse(url)
self.host = '%s://%s' % (url_loc[0], url_loc[1])
elif e.code >= 500:
ErrorExit(e.read())
else:
raise
finally:
socket.setdefaulttimeout(old_timeout)
class HttpRpcServer(AbstractRpcServer):
"""Provides a simplified RPC-style interface for HTTP requests."""
def _Authenticate(self):
"""Save the cookie jar after authentication."""
if isinstance(self.auth_function, OAuth2Creds):
access_token = self.auth_function()
if access_token is not None:
self.extra_headers['Authorization'] = 'OAuth %s' % (access_token,)
self.authenticated = True
else:
super(HttpRpcServer, self)._Authenticate()
if self.save_cookies:
StatusUpdate("Saving authentication cookies to %s" % self.cookie_file)
self.cookie_jar.save()
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())
if self.save_cookies:
self.cookie_file = os.path.expanduser("~/.codereview_upload_cookies")
self.cookie_jar = cookielib.MozillaCookieJar(self.cookie_file)
if os.path.exists(self.cookie_file):
try:
self.cookie_jar.load()
self.authenticated = True
StatusUpdate("Loaded authentication cookies from %s" %
self.cookie_file)
except (cookielib.LoadError, IOError):
# Failed to load cookies - just ignore them.
pass
else:
# Create an empty cookie file with mode 600
fd = os.open(self.cookie_file, os.O_CREAT, 0600)
os.close(fd)
# Always chmod the cookie file
os.chmod(self.cookie_file, 0600)
else:
# Don't save cookies across runs of update.py.
self.cookie_jar = cookielib.CookieJar()
opener.add_handler(urllib2.HTTPCookieProcessor(self.cookie_jar))
return opener
class CondensedHelpFormatter(optparse.IndentedHelpFormatter):
"""Frees more horizontal space by removing indentation from group
options and collapsing arguments between short and long, e.g.
'-o ARG, --opt=ARG' to -o --opt ARG"""
def format_heading(self, heading):
return "%s:\n" % heading
def format_option(self, option):
self.dedent()
res = optparse.HelpFormatter.format_option(self, option)
self.indent()
return res
def format_option_strings(self, option):
self.set_long_opt_delimiter(" ")
optstr = optparse.HelpFormatter.format_option_strings(self, option)
optlist = optstr.split(", ")
if len(optlist) > 1:
if option.takes_value():
# strip METAVAR from all but the last option
optlist = [x.split()[0] for x in optlist[:-1]] + optlist[-1:]
optstr = " ".join(optlist)
return optstr
parser = optparse.OptionParser(
usage=("%prog [options] [-- diff_options] [path...]\n"
"See also: http://code.google.com/p/rietveld/wiki/UploadPyUsage"),
add_help_option=False,
formatter=CondensedHelpFormatter()
)
parser.add_option("-h", "--help", action="store_true",
help="Show this help message and exit.")
parser.add_option("-y", "--assume_yes", action="store_true",
dest="assume_yes", default=False,
help="Assume that the answer to yes/no questions is 'yes'.")
# Logging
group = parser.add_option_group("Logging options")
group.add_option("-q", "--quiet", action="store_const", const=0,
dest="verbose", help="Print errors only.")
group.add_option("-v", "--verbose", action="store_const", const=2,
dest="verbose", default=1,
help="Print info level logs.")
group.add_option("--noisy", action="store_const", const=3,
dest="verbose", help="Print all logs.")
group.add_option("--print_diffs", dest="print_diffs", action="store_true",
help="Print full diffs.")
# Review server
group = parser.add_option_group("Review server options")
group.add_option("-s", "--server", action="store", dest="server",
default=DEFAULT_REVIEW_SERVER,
metavar="SERVER",
help=("The server to upload to. The format is host[:port]. "
"Defaults to '%default'."))
group.add_option("-e", "--email", action="store", dest="email",
metavar="EMAIL", default=None,
help="The username to use. Will prompt if omitted.")
group.add_option("-H", "--host", action="store", dest="host",
metavar="HOST", default=None,
help="Overrides the Host header sent with all RPCs.")
group.add_option("--no_cookies", action="store_false",
dest="save_cookies", default=True,
help="Do not save authentication cookies to local disk.")
group.add_option("--oauth2", action="store_true",
dest="use_oauth2", default=False,
help="Use OAuth 2.0 instead of a password.")
group.add_option("--oauth2_port", action="store", type="int",
dest="oauth2_port", default=DEFAULT_OAUTH2_PORT,
help=("Port to use to handle OAuth 2.0 redirect. Must be an "
"integer in the range 1024-49151, defaults to "
"'%default'."))
group.add_option("--no_oauth2_webbrowser", action="store_false",
dest="open_oauth2_local_webbrowser", default=True,
help="Don't open a browser window to get an access token.")
group.add_option("--account_type", action="store", dest="account_type",
metavar="TYPE", default=AUTH_ACCOUNT_TYPE,
choices=["GOOGLE", "HOSTED"],
help=("Override the default account type "
"(defaults to '%default', "
"valid choices are 'GOOGLE' and 'HOSTED')."))
# Issue
group = parser.add_option_group("Issue options")
group.add_option("-t", "--title", action="store", dest="title",
help="New issue subject or new patch set title")
group.add_option("-m", "--message", action="store", dest="message",
default=None,
help="New issue description or new patch set message")
group.add_option("-F", "--file", action="store", dest="file",
default=None, help="Read the message above from file.")
group.add_option("-r", "--reviewers", action="store", dest="reviewers",
metavar="REVIEWERS", default=None,
help="Add reviewers (comma separated email addresses).")
group.add_option("--cc", action="store", dest="cc",
metavar="CC", default=None,
help="Add CC (comma separated email addresses).")
group.add_option("--private", action="store_true", dest="private",
default=False,
help="Make the issue restricted to reviewers and those CCed")
# Upload options
group = parser.add_option_group("Patch options")
group.add_option("-i", "--issue", type="int", action="store",
metavar="ISSUE", default=None,
help="Issue number to which to add. Defaults to new issue.")
group.add_option("--base_url", action="store", dest="base_url", default=None,
help="Base URL path for files (listed as \"Base URL\" when "
"viewing issue). If omitted, will be guessed automatically "
"for SVN repos and left blank for others.")
group.add_option("--download_base", action="store_true",
dest="download_base", default=False,
help="Base files will be downloaded by the server "
"(side-by-side diffs may not work on files with CRs).")
group.add_option("--rev", action="store", dest="revision",
metavar="REV", default=None,
help="Base revision/branch/tree to diff against. Use "
"rev1:rev2 range to review already committed changeset.")
group.add_option("--send_mail", action="store_true",
dest="send_mail", default=False,
help="Send notification email to reviewers.")
group.add_option("-p", "--send_patch", action="store_true",
dest="send_patch", default=False,
help="Same as --send_mail, but include diff as an "
"attachment, and prepend email subject with 'PATCH:'.")
group.add_option("--vcs", action="store", dest="vcs",
metavar="VCS", default=None,
help=("Version control system (optional, usually upload.py "
"already guesses the right VCS)."))
group.add_option("--emulate_svn_auto_props", action="store_true",
dest="emulate_svn_auto_props", default=False,
help=("Emulate Subversion's auto properties feature."))
# Git-specific
group = parser.add_option_group("Git-specific options")
group.add_option("--git_similarity", action="store", dest="git_similarity",
metavar="SIM", type="int", default=50,
help=("Set the minimum similarity index for detecting renames "
"and copies. See `git diff -C`. (default 50)."))
group.add_option("--git_no_find_copies", action="store_false", default=True,
dest="git_find_copies",
help=("Prevents git from looking for copies (default off)."))
# Perforce-specific
group = parser.add_option_group("Perforce-specific options "
"(overrides P4 environment variables)")
group.add_option("--p4_port", action="store", dest="p4_port",
metavar="P4_PORT", default=None,
help=("Perforce server and port (optional)"))
group.add_option("--p4_changelist", action="store", dest="p4_changelist",
metavar="P4_CHANGELIST", default=None,
help=("Perforce changelist id"))
group.add_option("--p4_client", action="store", dest="p4_client",
metavar="P4_CLIENT", default=None,
help=("Perforce client/workspace"))
group.add_option("--p4_user", action="store", dest="p4_user",
metavar="P4_USER", default=None,
help=("Perforce user"))
# OAuth 2.0 Methods and Helpers
class ClientRedirectServer(BaseHTTPServer.HTTPServer):
"""A server for redirects back to localhost from the associated server.
Waits for a single request and parses the query parameters for an access token
and then stops serving.
"""
access_token = None
class ClientRedirectHandler(BaseHTTPServer.BaseHTTPRequestHandler):
"""A handler for redirects back to localhost from the associated server.
Waits for a single request and parses the query parameters into the server's
access_token and then stops serving.
"""
def SetAccessToken(self):
"""Stores the access token from the request on the server.
Will only do this if exactly one query parameter was passed in to the
request and that query parameter used 'access_token' as the key.
"""
query_string = urlparse.urlparse(self.path).query
query_params = urlparse.parse_qs(query_string)
if len(query_params) == 1:
access_token_list = query_params.get(ACCESS_TOKEN_PARAM, [])
if len(access_token_list) == 1:
self.server.access_token = access_token_list[0]
def do_GET(self):
"""Handle a GET request.
Parses and saves the query parameters and prints a message that the server
has completed its lone task (handling a redirect).
Note that we can't detect if an error occurred.
"""
self.send_response(200)
self.send_header('Content-type', 'text/html')
self.end_headers()
self.SetAccessToken()
self.wfile.write(AUTH_HANDLER_RESPONSE)
def log_message(self, format, *args):
"""Do not log messages to stdout while running as command line program."""
pass
def OpenOAuth2ConsentPage(server=DEFAULT_REVIEW_SERVER,
port=DEFAULT_OAUTH2_PORT):
"""Opens the OAuth 2.0 consent page or prints instructions how to.
Uses the webbrowser module to open the OAuth server side page in a browser.
Args:
server: String containing the review server URL. Defaults to
DEFAULT_REVIEW_SERVER.
port: Integer, the port where the localhost server receiving the redirect
is serving. Defaults to DEFAULT_OAUTH2_PORT.
Returns:
A boolean indicating whether the page opened successfully.
"""
path = OAUTH_PATH_PORT_TEMPLATE % {'port': port}
parsed_url = urlparse.urlparse(server)
scheme = parsed_url[0] or 'https'
if scheme != 'https':
ErrorExit('Using OAuth requires a review server with SSL enabled.')
# If no scheme was given on command line the server address ends up in
# parsed_url.path otherwise in netloc.
host = parsed_url[1] or parsed_url[2]
page = '%s://%s%s' % (scheme, host, path)
page_opened = webbrowser.open(page, new=1, autoraise=True)
if page_opened:
print OPEN_LOCAL_MESSAGE_TEMPLATE % (page,)
return page_opened
def WaitForAccessToken(port=DEFAULT_OAUTH2_PORT):
"""Spins up a simple HTTP Server to handle a single request.
Intended to handle a single redirect from the production server after the
user authenticated via OAuth 2.0 with the server.
Args:
port: Integer, the port where the localhost server receiving the redirect
is serving. Defaults to DEFAULT_OAUTH2_PORT.
Returns:
The access token passed to the localhost server, or None if no access token
was passed.
"""
httpd = ClientRedirectServer((LOCALHOST_IP, port), ClientRedirectHandler)
# Wait to serve just one request before deferring control back
# to the caller of wait_for_refresh_token
httpd.handle_request()
return httpd.access_token
def GetAccessToken(server=DEFAULT_REVIEW_SERVER, port=DEFAULT_OAUTH2_PORT,
open_local_webbrowser=True):
"""Gets an Access Token for the current user.
Args:
server: String containing the review server URL. Defaults to
DEFAULT_REVIEW_SERVER.
port: Integer, the port where the localhost server receiving the redirect
is serving. Defaults to DEFAULT_OAUTH2_PORT.
open_local_webbrowser: Boolean, defaults to True. If set, opens a page in
the user's browser.
Returns:
A string access token that was sent to the local server. If the serving page
via WaitForAccessToken does not receive an access token, this method
returns None.
"""
access_token = None
if open_local_webbrowser:
page_opened = OpenOAuth2ConsentPage(server=server, port=port)
if page_opened:
try:
access_token = WaitForAccessToken(port=port)
except socket.error, e:
print 'Can\'t start local webserver. Socket Error: %s\n' % (e.strerror,)
if access_token is None:
# TODO(dhermes): Offer to add to clipboard using xsel, xclip, pbcopy, etc.
page = 'https://%s%s' % (server, OAUTH_PATH)
print NO_OPEN_LOCAL_MESSAGE_TEMPLATE % (page,)
access_token = raw_input('Enter access token: ').strip()
return access_token
class KeyringCreds(object):
def __init__(self, server, host, email):
self.server = server
# Explicitly cast host to str to work around bug in old versions of Keyring
# (versions before 0.10). Even though newer versions of Keyring fix this,
# some modern linuxes (such as Ubuntu 12.04) still bundle a version with
# the bug.
self.host = str(host)
self.email = email
self.accounts_seen = set()
def GetUserCredentials(self):
"""Prompts the user for a username and password.
Only use keyring on the initial call. If the keyring contains the wrong
password, we want to give the user a chance to enter another one.
"""
# Create a local alias to the email variable to avoid Python's crazy
# scoping rules.
global keyring
email = self.email
if email is None:
email = GetEmail("Email (login for uploading to %s)" % self.server)
password = None
if keyring and not email in self.accounts_seen:
try:
password = keyring.get_password(self.host, email)
except:
# Sadly, we have to trap all errors here as
# gnomekeyring.IOError inherits from object. :/
print "Failed to get password from keyring"
keyring = None
if password is not None:
print "Using password from system keyring."
self.accounts_seen.add(email)
else:
password = getpass.getpass("Password for %s: " % email)
if keyring:
answer = raw_input("Store password in system keyring?(y/N) ").strip()
if answer == "y":
keyring.set_password(self.host, email, password)
self.accounts_seen.add(email)
return (email, password)
class OAuth2Creds(object):
"""Simple object to hold server and port to be passed to GetAccessToken."""
def __init__(self, server, port, open_local_webbrowser=True):
self.server = server
self.port = port
self.open_local_webbrowser = open_local_webbrowser
def __call__(self):
"""Uses stored server and port to retrieve OAuth 2.0 access token."""
return GetAccessToken(server=self.server, port=self.port,
open_local_webbrowser=self.open_local_webbrowser)
def GetRpcServer(server, email=None, host_override=None, save_cookies=True,
account_type=AUTH_ACCOUNT_TYPE, use_oauth2=False,
oauth2_port=DEFAULT_OAUTH2_PORT,
open_oauth2_local_webbrowser=True):
"""Returns an instance of an AbstractRpcServer.
Args:
server: String containing the review server URL.
email: String containing user's email address.
host_override: If not None, string containing an alternate hostname to use
in the host header.
save_cookies: Whether authentication cookies should be saved to disk.
account_type: Account type for authentication, either 'GOOGLE'
or 'HOSTED'. Defaults to AUTH_ACCOUNT_TYPE.
use_oauth2: Boolean indicating whether OAuth 2.0 should be used for
authentication.
oauth2_port: Integer, the port where the localhost server receiving the
redirect is serving. Defaults to DEFAULT_OAUTH2_PORT.
open_oauth2_local_webbrowser: Boolean, defaults to True. If True and using
OAuth, this opens a page in the user's browser to obtain a token.
Returns:
A new HttpRpcServer, on which RPC calls can be made.
"""
# If this is the dev_appserver, use fake authentication.
host = (host_override or server).lower()
if re.match(r'(http://)?localhost([:/]|$)', host):
if email is None:
email = "test@example.com"
logging.info("Using debug user %s. Override with --email" % email)
server = HttpRpcServer(
server,
lambda: (email, "password"),
host_override=host_override,
extra_headers={"Cookie":
'dev_appserver_login="%s:False"' % email},
save_cookies=save_cookies,
account_type=account_type)
# Don't try to talk to ClientLogin.
server.authenticated = True
return server
positional_args = [server]
if use_oauth2:
positional_args.append(
OAuth2Creds(server, oauth2_port, open_oauth2_local_webbrowser))
else:
positional_args.append(KeyringCreds(server, host, email).GetUserCredentials)
return HttpRpcServer(*positional_args,
host_override=host_override,
save_cookies=save_cookies,
account_type=account_type)
def EncodeMultipartFormData(fields, files):
"""Encode form fields for multipart/form-data.
Args:
fields: A sequence of (name, value) elements for regular form fields.
files: A sequence of (name, filename, value) elements for data to be
uploaded as files.
Returns:
(content_type, body) ready for httplib.HTTP instance.
Source:
http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/146306
"""
BOUNDARY = '-M-A-G-I-C---B-O-U-N-D-A-R-Y-'
CRLF = '\r\n'
lines = []
for (key, value) in fields:
lines.append('--' + BOUNDARY)
lines.append('Content-Disposition: form-data; name="%s"' % key)
lines.append('')
if isinstance(value, unicode):
value = value.encode('utf-8')
lines.append(value)
for (key, filename, value) in files:
lines.append('--' + BOUNDARY)
lines.append('Content-Disposition: form-data; name="%s"; filename="%s"' %
(key, filename))
lines.append('Content-Type: %s' % GetContentType(filename))
lines.append('')
if isinstance(value, unicode):
value = value.encode('utf-8')
lines.append(value)
lines.append('--' + BOUNDARY + '--')
lines.append('')
body = CRLF.join(lines)
content_type = 'multipart/form-data; boundary=%s' % BOUNDARY
return content_type, body
def GetContentType(filename):
"""Helper to guess the content-type from the filename."""
return mimetypes.guess_type(filename)[0] or 'application/octet-stream'
# Use a shell for subcommands on Windows to get a PATH search.
use_shell = sys.platform.startswith("win")
def RunShellWithReturnCodeAndStderr(command, print_output=False,
universal_newlines=True,
env=os.environ):
"""Executes a command and returns the output from stdout, stderr and the return code.
Args:
command: Command to execute.
print_output: If True, the output is printed to stdout.
If False, both stdout and stderr are ignored.
universal_newlines: Use universal_newlines flag (default: True).
Returns:
Tuple (stdout, stderr, return code)
"""
logging.info("Running %s", command)
env = env.copy()
env['LC_MESSAGES'] = 'C'
p = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE,
shell=use_shell, universal_newlines=universal_newlines,
env=env)
if print_output:
output_array = []
while True:
line = p.stdout.readline()
if not line:
break
print line.strip("\n")
output_array.append(line)
output = "".join(output_array)