Mercurial > hg
view mercurial/url.py @ 15621:013688350c7d
bookmarks: update and updatecurrentbookmark return status
This makes bookmarks.update() and bookmarks.updatecurrentbookmark() return
True or False to indicate whether the bookmark was updated or not. This allows
callers to e.g. abort if the update failed.
author | Kevin Bullock <kbullock@ringworld.org> |
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date | Wed, 16 Nov 2011 15:29:57 -0600 |
parents | d30ec2d16c5a |
children | 525fdb738975 |
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# 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 or any later version. import urllib, urllib2, httplib, os, socket, cStringIO from i18n import _ import keepalive, util, sslutil import httpconnection as httpconnectionmod 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 or not passwd: res = httpconnectionmod.readauthforuri(self.ui, authuri, user) if res: group, auth = res user, passwd = auth.get('username'), auth.get('password') self.ui.debug("using auth.%s.* for authentication\n" % group) 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.write(_("realm: %s\n") % realm) if user: self.ui.write(_("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 find_stored_password(self, authuri): return urllib2.HTTPPasswordMgrWithDefaultRealm.find_user_password( self, None, authuri) 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 + '/' proxy = util.url(proxyurl) if not proxy.user: proxy.user = ui.config("http_proxy", "user") proxy.passwd = 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 = str(proxy) proxies = {'http': proxyurl, 'https': proxyurl} ui.debug('proxying through http://%s:%s\n' % (proxy.host, proxy.port)) else: proxies = {} # urllib2 takes proxy values from the environment and those # will take precedence if found. So, if there's a config entry # defining a proxy, drop the environment ones if ui.config("http_proxy", "host"): 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_) def _gen_sendfile(orgsend): def _sendfile(self, data): # send a file if isinstance(data, httpconnectionmod.httpsendfile): # if auth required, some data sent twice, so rewind here data.seek(0) for chunk in util.filechunkiter(data): orgsend(self, chunk) else: orgsend(self, data) return _sendfile has_https = util.safehasattr(urllib2, 'HTTPSHandler') if has_https: try: _create_connection = socket.create_connection except AttributeError: _GLOBAL_DEFAULT_TIMEOUT = object() def _create_connection(address, timeout=_GLOBAL_DEFAULT_TIMEOUT, source_address=None): # lifted from Python 2.6 msg = "getaddrinfo returns an empty list" host, port = address for res in socket.getaddrinfo(host, port, 0, socket.SOCK_STREAM): af, socktype, proto, canonname, sa = res sock = None try: sock = socket.socket(af, socktype, proto) if timeout is not _GLOBAL_DEFAULT_TIMEOUT: sock.settimeout(timeout) if source_address: sock.bind(source_address) sock.connect(sa) return sock except socket.error, msg: if sock is not None: sock.close() raise socket.error, msg class httpconnection(keepalive.HTTPConnection): # must be able to send big bundle as stream. send = _gen_sendfile(keepalive.HTTPConnection.send) def connect(self): if has_https and self.realhostport: # use CONNECT proxy self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) self.sock.connect((self.host, self.port)) if _generic_proxytunnel(self): # we do not support client x509 certificates self.sock = sslutil.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) # general transaction handler to support different ways to handle # HTTPS proxying before and after Python 2.6.3. def _generic_start_transaction(handler, h, req): tunnel_host = getattr(req, '_tunnel_host', None) if tunnel_host: if tunnel_host[:7] not in ['http://', 'https:/']: tunnel_host = 'https://' + tunnel_host new_tunnel = True else: tunnel_host = req.get_selector() new_tunnel = False if new_tunnel or tunnel_host == req.get_full_url(): # has proxy u = util.url(tunnel_host) if new_tunnel or u.scheme == 'https': # only use CONNECT for HTTPS h.realhostport = ':'.join([u.host, (u.port or '443')]) h.headers = req.headers.copy() h.headers.update(handler.parent.addheaders) return h.realhostport = None h.headers = None def _generic_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 HTTP/1.0\r\n' % self.realhostport) 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 class httphandler(keepalive.HTTPHandler): def http_open(self, req): return self.do_open(httpconnection, req) def _start_transaction(self, h, req): _generic_start_transaction(self, h, req) return keepalive.HTTPHandler._start_transaction(self, h, req) if has_https: class httpsconnection(httplib.HTTPSConnection): response_class = keepalive.HTTPResponse # must be able to send big bundle as stream. send = _gen_sendfile(keepalive.safesend) getresponse = keepalive.wrapgetresponse(httplib.HTTPSConnection) def connect(self): self.sock = _create_connection((self.host, self.port)) host = self.host if self.realhostport: # use CONNECT proxy _generic_proxytunnel(self) host = self.realhostport.rsplit(':', 1)[0] self.sock = sslutil.ssl_wrap_socket( self.sock, self.key_file, self.cert_file, **sslutil.sslkwargs(self.ui, host)) sslutil.validator(self.ui, host)(self.sock) 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 _start_transaction(self, h, req): _generic_start_transaction(self, h, req) return keepalive.KeepAliveHandler._start_transaction(self, h, req) def https_open(self, req): # req.get_full_url() does not contain credentials and we may # need them to match the certificates. url = req.get_full_url() user, password = self.pwmgr.find_stored_password(url) res = httpconnectionmod.readauthforuri(self.ui, url, user) if res: group, auth = res self.auth = auth self.ui.debug("using auth.%s.* for authentication\n" % group) else: self.auth = None return self.do_open(self._makeconnection, req) def _makeconnection(self, host, port=None, *args, **kwargs): keyfile = None certfile = None if len(args) >= 1: # key_file keyfile = args[0] if len(args) >= 2: # cert_file certfile = args[1] args = args[2:] # 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'] conn = httpsconnection(host, port, keyfile, certfile, *args, **kwargs) conn.ui = self.ui return conn class httpdigestauthhandler(urllib2.HTTPDigestAuthHandler): def __init__(self, *args, **kwargs): urllib2.HTTPDigestAuthHandler.__init__(self, *args, **kwargs) self.retried_req = None def reset_retry_count(self): # Python 2.6.5 will call this on 401 or 407 errors and thus loop # forever. We disable reset_retry_count completely and reset in # http_error_auth_reqed instead. pass def http_error_auth_reqed(self, auth_header, host, req, headers): # Reset the retry counter once for each request. if req is not self.retried_req: self.retried_req = req self.retried = 0 # 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. 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 class httpbasicauthhandler(urllib2.HTTPBasicAuthHandler): def __init__(self, *args, **kwargs): urllib2.HTTPBasicAuthHandler.__init__(self, *args, **kwargs) self.retried_req = None def reset_retry_count(self): # Python 2.6.5 will call this on 401 or 407 errors and thus loop # forever. We disable reset_retry_count completely and reset in # http_error_auth_reqed instead. pass def http_error_auth_reqed(self, auth_header, host, req, headers): # Reset the retry counter once for each request. if req is not self.retried_req: self.retried_req = req self.retried = 0 return urllib2.HTTPBasicAuthHandler.http_error_auth_reqed( self, auth_header, host, req, headers) handlerfuncs = [] def opener(ui, authinfo=None): ''' construct an opener suitable for urllib2 authinfo will be added to the password manager ''' if ui.configbool('ui', 'usehttp2', False): handlers = [httpconnectionmod.http2handler(ui, passwordmgr(ui))] else: 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((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 def open(ui, url_, data=None): u = util.url(url_) if u.scheme: u.scheme = u.scheme.lower() url_, authinfo = u.authinfo() else: path = util.normpath(os.path.abspath(url_)) url_ = 'file://' + urllib.pathname2url(path) authinfo = None return opener(ui, authinfo).open(url_, data)