transaction: always remove empty journal on abort
When transactions without entries were aborted, the journal (of size 0) was not
unlinked, which prevents subsequent operations until hg recover is run on the
repository.
We also make sure the journal is unlinked when committing, even if the provided
hook doesn't do so.
# url.py - HTTP handling for mercurial
#
# Copyright 2005, 2006, 2007, 2008 Matt Mackall <mpm@selenic.com>
# Copyright 2006, 2007 Alexis S. L. Carvalho <alexis@cecm.usp.br>
# Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2, incorporated herein by reference.
import urllib, urllib2, urlparse, httplib, os, re, socket, cStringIO
from i18n import _
import keepalive, util
def hidepassword(url):
'''hide user credential in a url string'''
scheme, netloc, path, params, query, fragment = urlparse.urlparse(url)
netloc = re.sub('([^:]*):([^@]*)@(.*)', r'\1:***@\3', netloc)
return urlparse.urlunparse((scheme, netloc, path, params, query, fragment))
def removeauth(url):
'''remove all authentication information from a url string'''
scheme, netloc, path, params, query, fragment = urlparse.urlparse(url)
netloc = netloc[netloc.find('@')+1:]
return urlparse.urlunparse((scheme, netloc, path, params, query, fragment))
def netlocsplit(netloc):
'''split [user[:passwd]@]host[:port] into 4-tuple.'''
a = netloc.find('@')
if a == -1:
user, passwd = None, None
else:
userpass, netloc = netloc[:a], netloc[a+1:]
c = userpass.find(':')
if c == -1:
user, passwd = urllib.unquote(userpass), None
else:
user = urllib.unquote(userpass[:c])
passwd = urllib.unquote(userpass[c+1:])
c = netloc.find(':')
if c == -1:
host, port = netloc, None
else:
host, port = netloc[:c], netloc[c+1:]
return host, port, user, passwd
def netlocunsplit(host, port, user=None, passwd=None):
'''turn host, port, user, passwd into [user[:passwd]@]host[:port].'''
if port:
hostport = host + ':' + port
else:
hostport = host
if user:
if passwd:
userpass = urllib.quote(user) + ':' + urllib.quote(passwd)
else:
userpass = urllib.quote(user)
return userpass + '@' + hostport
return hostport
_safe = ('abcdefghijklmnopqrstuvwxyz'
'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
'0123456789' '_.-/')
_safeset = None
_hex = None
def quotepath(path):
'''quote the path part of a URL
This is similar to urllib.quote, but it also tries to avoid
quoting things twice (inspired by wget):
>>> quotepath('abc def')
'abc%20def'
>>> quotepath('abc%20def')
'abc%20def'
>>> quotepath('abc%20 def')
'abc%20%20def'
>>> quotepath('abc def%20')
'abc%20def%20'
>>> quotepath('abc def%2')
'abc%20def%252'
>>> quotepath('abc def%')
'abc%20def%25'
'''
global _safeset, _hex
if _safeset is None:
_safeset = set(_safe)
_hex = set('abcdefABCDEF0123456789')
l = list(path)
for i in xrange(len(l)):
c = l[i]
if c == '%' and i + 2 < len(l) and (l[i+1] in _hex and l[i+2] in _hex):
pass
elif c not in _safeset:
l[i] = '%%%02X' % ord(c)
return ''.join(l)
class passwordmgr(urllib2.HTTPPasswordMgrWithDefaultRealm):
def __init__(self, ui):
urllib2.HTTPPasswordMgrWithDefaultRealm.__init__(self)
self.ui = ui
def find_user_password(self, realm, authuri):
authinfo = urllib2.HTTPPasswordMgrWithDefaultRealm.find_user_password(
self, realm, authuri)
user, passwd = authinfo
if user and passwd:
self._writedebug(user, passwd)
return (user, passwd)
if not user:
auth = self.readauthtoken(authuri)
if auth:
user, passwd = auth.get('username'), auth.get('password')
if not user or not passwd:
if not self.ui.interactive():
raise util.Abort(_('http authorization required'))
self.ui.write(_("http authorization required\n"))
self.ui.status(_("realm: %s\n") % realm)
if user:
self.ui.status(_("user: %s\n") % user)
else:
user = self.ui.prompt(_("user:"), default=None)
if not passwd:
passwd = self.ui.getpass()
self.add_password(realm, authuri, user, passwd)
self._writedebug(user, passwd)
return (user, passwd)
def _writedebug(self, user, passwd):
msg = _('http auth: user %s, password %s\n')
self.ui.debug(msg % (user, passwd and '*' * len(passwd) or 'not set'))
def readauthtoken(self, uri):
# Read configuration
config = dict()
for key, val in self.ui.configitems('auth'):
group, setting = key.split('.', 1)
gdict = config.setdefault(group, dict())
gdict[setting] = val
# Find the best match
scheme, hostpath = uri.split('://', 1)
bestlen = 0
bestauth = None
for auth in config.itervalues():
prefix = auth.get('prefix')
if not prefix: continue
p = prefix.split('://', 1)
if len(p) > 1:
schemes, prefix = [p[0]], p[1]
else:
schemes = (auth.get('schemes') or 'https').split()
if (prefix == '*' or hostpath.startswith(prefix)) and \
len(prefix) > bestlen and scheme in schemes:
bestlen = len(prefix)
bestauth = auth
return bestauth
class proxyhandler(urllib2.ProxyHandler):
def __init__(self, ui):
proxyurl = ui.config("http_proxy", "host") or os.getenv('http_proxy')
# XXX proxyauthinfo = None
if proxyurl:
# proxy can be proper url or host[:port]
if not (proxyurl.startswith('http:') or
proxyurl.startswith('https:')):
proxyurl = 'http://' + proxyurl + '/'
snpqf = urlparse.urlsplit(proxyurl)
proxyscheme, proxynetloc, proxypath, proxyquery, proxyfrag = snpqf
hpup = netlocsplit(proxynetloc)
proxyhost, proxyport, proxyuser, proxypasswd = hpup
if not proxyuser:
proxyuser = ui.config("http_proxy", "user")
proxypasswd = ui.config("http_proxy", "passwd")
# see if we should use a proxy for this url
no_list = [ "localhost", "127.0.0.1" ]
no_list.extend([p.lower() for
p in ui.configlist("http_proxy", "no")])
no_list.extend([p.strip().lower() for
p in os.getenv("no_proxy", '').split(',')
if p.strip()])
# "http_proxy.always" config is for running tests on localhost
if ui.configbool("http_proxy", "always"):
self.no_list = []
else:
self.no_list = no_list
proxyurl = urlparse.urlunsplit((
proxyscheme, netlocunsplit(proxyhost, proxyport,
proxyuser, proxypasswd or ''),
proxypath, proxyquery, proxyfrag))
proxies = {'http': proxyurl, 'https': proxyurl}
ui.debug('proxying through http://%s:%s\n' %
(proxyhost, proxyport))
else:
proxies = {}
# urllib2 takes proxy values from the environment and those
# will take precedence if found, so drop them
for env in ["HTTP_PROXY", "http_proxy", "no_proxy"]:
try:
if env in os.environ:
del os.environ[env]
except OSError:
pass
urllib2.ProxyHandler.__init__(self, proxies)
self.ui = ui
def proxy_open(self, req, proxy, type_):
host = req.get_host().split(':')[0]
if host in self.no_list:
return None
# work around a bug in Python < 2.4.2
# (it leaves a "\n" at the end of Proxy-authorization headers)
baseclass = req.__class__
class _request(baseclass):
def add_header(self, key, val):
if key.lower() == 'proxy-authorization':
val = val.strip()
return baseclass.add_header(self, key, val)
req.__class__ = _request
return urllib2.ProxyHandler.proxy_open(self, req, proxy, type_)
class httpsendfile(file):
def __len__(self):
return os.fstat(self.fileno()).st_size
def _gen_sendfile(connection):
def _sendfile(self, data):
# send a file
if isinstance(data, httpsendfile):
# if auth required, some data sent twice, so rewind here
data.seek(0)
for chunk in util.filechunkiter(data):
connection.send(self, chunk)
else:
connection.send(self, data)
return _sendfile
has_https = hasattr(urllib2, 'HTTPSHandler')
if has_https:
try:
# avoid using deprecated/broken FakeSocket in python 2.6
import ssl
_ssl_wrap_socket = ssl.wrap_socket
except ImportError:
def _ssl_wrap_socket(sock, key_file, cert_file):
ssl = socket.ssl(sock, key_file, cert_file)
return httplib.FakeSocket(sock, ssl)
class httpconnection(keepalive.HTTPConnection):
# must be able to send big bundle as stream.
send = _gen_sendfile(keepalive.HTTPConnection)
def _proxytunnel(self):
proxyheaders = dict(
[(x, self.headers[x]) for x in self.headers
if x.lower().startswith('proxy-')])
self._set_hostport(self.host, self.port)
self.send('CONNECT %s:%d HTTP/1.0\r\n' % (self.realhost, self.realport))
for header in proxyheaders.iteritems():
self.send('%s: %s\r\n' % header)
self.send('\r\n')
# majority of the following code is duplicated from
# httplib.HTTPConnection as there are no adequate places to
# override functions to provide the needed functionality
res = self.response_class(self.sock,
strict=self.strict,
method=self._method)
while True:
version, status, reason = res._read_status()
if status != httplib.CONTINUE:
break
while True:
skip = res.fp.readline().strip()
if not skip:
break
res.status = status
res.reason = reason.strip()
if res.status == 200:
while True:
line = res.fp.readline()
if line == '\r\n':
break
return True
if version == 'HTTP/1.0':
res.version = 10
elif version.startswith('HTTP/1.'):
res.version = 11
elif version == 'HTTP/0.9':
res.version = 9
else:
raise httplib.UnknownProtocol(version)
if res.version == 9:
res.length = None
res.chunked = 0
res.will_close = 1
res.msg = httplib.HTTPMessage(cStringIO.StringIO())
return False
res.msg = httplib.HTTPMessage(res.fp)
res.msg.fp = None
# are we using the chunked-style of transfer encoding?
trenc = res.msg.getheader('transfer-encoding')
if trenc and trenc.lower() == "chunked":
res.chunked = 1
res.chunk_left = None
else:
res.chunked = 0
# will the connection close at the end of the response?
res.will_close = res._check_close()
# do we have a Content-Length?
# NOTE: RFC 2616, S4.4, #3 says we ignore this if tr_enc is "chunked"
length = res.msg.getheader('content-length')
if length and not res.chunked:
try:
res.length = int(length)
except ValueError:
res.length = None
else:
if res.length < 0: # ignore nonsensical negative lengths
res.length = None
else:
res.length = None
# does the body have a fixed length? (of zero)
if (status == httplib.NO_CONTENT or status == httplib.NOT_MODIFIED or
100 <= status < 200 or # 1xx codes
res._method == 'HEAD'):
res.length = 0
# if the connection remains open, and we aren't using chunked, and
# a content-length was not provided, then assume that the connection
# WILL close.
if (not res.will_close and
not res.chunked and
res.length is None):
res.will_close = 1
self.proxyres = res
return False
def connect(self):
if has_https and self.realhost: # use CONNECT proxy
self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.sock.connect((self.host, self.port))
if self._proxytunnel():
# we do not support client x509 certificates
self.sock = _ssl_wrap_socket(self.sock, None, None)
else:
keepalive.HTTPConnection.connect(self)
def getresponse(self):
proxyres = getattr(self, 'proxyres', None)
if proxyres:
if proxyres.will_close:
self.close()
self.proxyres = None
return proxyres
return keepalive.HTTPConnection.getresponse(self)
class httphandler(keepalive.HTTPHandler):
def http_open(self, req):
return self.do_open(httpconnection, req)
def _start_transaction(self, h, req):
if req.get_selector() == req.get_full_url(): # has proxy
urlparts = urlparse.urlparse(req.get_selector())
if urlparts[0] == 'https': # only use CONNECT for HTTPS
if ':' in urlparts[1]:
realhost, realport = urlparts[1].split(':')
realport = int(realport)
else:
realhost = urlparts[1]
realport = 443
h.realhost = realhost
h.realport = realport
h.headers = req.headers.copy()
h.headers.update(self.parent.addheaders)
return keepalive.HTTPHandler._start_transaction(self, h, req)
h.realhost = None
h.realport = None
h.headers = None
return keepalive.HTTPHandler._start_transaction(self, h, req)
def __del__(self):
self.close_all()
if has_https:
class httpsconnection(httplib.HTTPSConnection):
response_class = keepalive.HTTPResponse
# must be able to send big bundle as stream.
send = _gen_sendfile(httplib.HTTPSConnection)
class httpshandler(keepalive.KeepAliveHandler, urllib2.HTTPSHandler):
def __init__(self, ui):
keepalive.KeepAliveHandler.__init__(self)
urllib2.HTTPSHandler.__init__(self)
self.ui = ui
self.pwmgr = passwordmgr(self.ui)
def https_open(self, req):
self.auth = self.pwmgr.readauthtoken(req.get_full_url())
return self.do_open(self._makeconnection, req)
def _makeconnection(self, host, port=443, *args, **kwargs):
keyfile = None
certfile = None
if args: # key_file
keyfile = args.pop(0)
if args: # cert_file
certfile = args.pop(0)
# if the user has specified different key/cert files in
# hgrc, we prefer these
if self.auth and 'key' in self.auth and 'cert' in self.auth:
keyfile = self.auth['key']
certfile = self.auth['cert']
# let host port take precedence
if ':' in host and '[' not in host or ']:' in host:
host, port = host.rsplit(':', 1)
port = int(port)
if '[' in host:
host = host[1:-1]
return httpsconnection(host, port, keyfile, certfile, *args, **kwargs)
# In python < 2.5 AbstractDigestAuthHandler raises a ValueError if
# it doesn't know about the auth type requested. This can happen if
# somebody is using BasicAuth and types a bad password.
class httpdigestauthhandler(urllib2.HTTPDigestAuthHandler):
def http_error_auth_reqed(self, auth_header, host, req, headers):
try:
return urllib2.HTTPDigestAuthHandler.http_error_auth_reqed(
self, auth_header, host, req, headers)
except ValueError, inst:
arg = inst.args[0]
if arg.startswith("AbstractDigestAuthHandler doesn't know "):
return
raise
def getauthinfo(path):
scheme, netloc, urlpath, query, frag = urlparse.urlsplit(path)
if not urlpath:
urlpath = '/'
if scheme != 'file':
# XXX: why are we quoting the path again with some smart
# heuristic here? Anyway, it cannot be done with file://
# urls since path encoding is os/fs dependent (see
# urllib.pathname2url() for details).
urlpath = quotepath(urlpath)
host, port, user, passwd = netlocsplit(netloc)
# urllib cannot handle URLs with embedded user or passwd
url = urlparse.urlunsplit((scheme, netlocunsplit(host, port),
urlpath, query, frag))
if user:
netloc = host
if port:
netloc += ':' + port
# Python < 2.4.3 uses only the netloc to search for a password
authinfo = (None, (url, netloc), user, passwd or '')
else:
authinfo = None
return url, authinfo
handlerfuncs = []
def opener(ui, authinfo=None):
'''
construct an opener suitable for urllib2
authinfo will be added to the password manager
'''
handlers = [httphandler()]
if has_https:
handlers.append(httpshandler(ui))
handlers.append(proxyhandler(ui))
passmgr = passwordmgr(ui)
if authinfo is not None:
passmgr.add_password(*authinfo)
user, passwd = authinfo[2:4]
ui.debug('http auth: user %s, password %s\n' %
(user, passwd and '*' * len(passwd) or 'not set'))
handlers.extend((urllib2.HTTPBasicAuthHandler(passmgr),
httpdigestauthhandler(passmgr)))
handlers.extend([h(ui, passmgr) for h in handlerfuncs])
opener = urllib2.build_opener(*handlers)
# 1.0 here is the _protocol_ version
opener.addheaders = [('User-agent', 'mercurial/proto-1.0')]
opener.addheaders.append(('Accept', 'application/mercurial-0.1'))
return opener
scheme_re = re.compile(r'^([a-zA-Z0-9+-.]+)://')
def open(ui, url, data=None):
scheme = None
m = scheme_re.search(url)
if m:
scheme = m.group(1).lower()
if not scheme:
path = util.normpath(os.path.abspath(url))
url = 'file://' + urllib.pathname2url(path)
authinfo = None
else:
url, authinfo = getauthinfo(url)
return opener(ui, authinfo).open(url, data)