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python3.6
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up2date_client
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files >> //proc/thread-self/root/proc/self/root/usr/lib/python3.6/site-packages/up2date_client/rpcServer.py
# import os import sys import socket import time from up2date_client import config from up2date_client import clientCaps from up2date_client import up2dateLog from up2date_client import up2dateErrors from up2date_client import up2dateUtils from rhn import SSL from rhn import rpclib from rhn.tb import raise_with_tb try: # python2 import httplib import urllib2 import urlparse import xmlrpclib except ImportError: # python3 import http.client as httplib import urllib.request as urllib2 import urllib.parse as urlparse import xmlrpc.client as xmlrpclib import gettext t = gettext.translation('rhn-client-tools', fallback=True) # Python 3 translations don't have a ugettext method if not hasattr(t, 'ugettext'): t.ugettext = t.gettext _ = t.ugettext def stdoutMsgCallback(msg): print(msg) class RetryServer(rpclib.Server): def addServerList(self, serverList): self.serverList = serverList def _request1(self, methodname, params): self.log = up2dateLog.initLog() while 1: try: ret = self._request(methodname, params) except rpclib.InvalidRedirectionError: raise except xmlrpclib.Fault: raise except httplib.BadStatusLine: self.log.log_me("Error: Server Unavailable. Please try later.") stdoutMsgCallback( _("Error: Server Unavailable. Please try later.")) sys.exit(-1) except: server = self.serverList.next() if server == None: # since just because we failed, the server list could # change (aka, firstboot, they get an option to reset the # the server configuration) so reset the serverList self.serverList.resetServerIndex() raise msg = "An error occurred talking to %s:\n" % self._host msg = msg + "%s\n%s\n" % (sys.exc_info()[0], sys.exc_info()[1]) msg = msg + "Trying the next serverURL: %s\n" % self.serverList.server() self.log.log_me(msg) # try a different url # use the next serverURL parse_res = urlparse.urlsplit(self.serverList.server()) typ = parse_res[0] # scheme self._host = parse_res[1] # netloc self._handler = parse_res[2] # path typ = typ.lower() if typ not in ("http", "https"): raise_with_tb(rpclib.InvalidRedirectionError( "Redirected to unsupported protocol %s" % typ)) self._orig_handler = self._handler self._type = typ self._uri = self.serverList.server() if not self._handler: self._handler = "/RPC2" self._allow_redirect = 1 continue # if we get this far, we succedded break return ret def __getattr__(self, name): # magic method dispatcher return rpclib.xmlrpclib._Method(self._request1, name) # uh, yeah, this could be an iterator, but we need it to work on 1.5 as well class ServerList: def __init__(self, serverlist=[]): self.serverList = serverlist self.index = 0 def server(self): self.serverurl = self.serverList[self.index] return self.serverurl def next(self): self.index = self.index + 1 if self.index >= len(self.serverList): return None return self.server() def resetServerIndex(self): self.index = 0 def getCLNServer(refreshCallback=None, serverOverride=None, timeout=None): cfg = config.initUp2dateConfig() if serverOverride is None: serverOverride = cfg["clnServerURL"] if serverOverride is None or len(serverOverride.strip()) == 0: serverOverride = "http://cln.cloudlinux.com/clweb/xmlrpc" serverOverride = [ serverOverride ] return getServer(refreshCallback, serverOverride, timeout) def getServer(refreshCallback=None, serverOverride=None, timeout=None): log = up2dateLog.initLog() cfg = config.initUp2dateConfig() # Where do we keep the CA certificate for RHNS? # The servers we're talking to need to have their certs # signed by one of these CA. ca = cfg["sslCACert"] if not isinstance(ca, list): ca = [ca] rhns_ca_certs = ca or ["/usr/share/rhn/CLN-ORG-TRUSTED-SSL-CERT"] if cfg["enableProxy"]: proxyHost = config.getProxySetting() else: proxyHost = None if not serverOverride: serverUrls = config.getServerlURL() else: serverUrls = serverOverride serverList = ServerList(serverUrls) proxyUser = None proxyPassword = None if cfg["enableProxyAuth"]: proxyUser = cfg["proxyUser"] or None proxyPassword = cfg["proxyPassword"] or None lang = None for env in 'LANGUAGE', 'LC_ALL', 'LC_MESSAGES', 'LANG': if env in os.environ: if not os.environ[env]: # sometimes unset continue lang = os.environ[env].split(':')[0] lang = lang.split('.')[0] break s = RetryServer(serverList.server(), refreshCallback=refreshCallback, proxy=proxyHost, username=proxyUser, password=proxyPassword, timeout=timeout) s.addServerList(serverList) s.add_header("X-Up2date-Version", up2dateUtils.version()) if lang: s.setlang(lang) # require CLN-ORG-TRUSTED-SSL-CERT file to be able to authenticate the SSL connections need_ca = [ True for i in s.serverList.serverList if urlparse.urlparse(i)[0] == 'https'] if need_ca: for rhns_ca_cert in rhns_ca_certs: if not os.access(rhns_ca_cert, os.R_OK): msg = "%s: %s" % (_("ERROR: can not find RHNS CA file"), rhns_ca_cert) log.log_me("%s" % msg) raise up2dateErrors.SSLCertificateFileNotFound(msg) # force the validation of the SSL cert s.add_trusted_cert(rhns_ca_cert) clientCaps.loadLocalCaps() # send up the capabality info headerlist = clientCaps.caps.headerFormat() for (headerName, value) in headerlist: s.add_header(headerName, value) return s def doCall(method, *args, **kwargs): log = up2dateLog.initLog() log.log_debug("rpcServer: Calling XMLRPC %s" % method.__dict__['_Method__name']) cfg = config.initUp2dateConfig() ret = None attempt_count = 1 try: attempts = int(cfg["networkRetries"]) except ValueError: attempts = 1 if attempts <= 0: attempts = 1 while 1: failure = 0 ret = None try: ret = method(*args, **kwargs) except KeyboardInterrupt: raise_with_tb(up2dateErrors.CommunicationError(_( "Connection aborted by the user"))) # if we get a socket error, keep tryingx2 except (socket.error, SSL.socket_error): log.log_me("A socket error occurred: %s, attempt #%s" % ( sys.exc_info()[1], attempt_count)) if attempt_count >= attempts: e = sys.exc_info()[1] if len(e.args) > 1: raise_with_tb(up2dateErrors.CommunicationError(e.args[1])) else: raise_with_tb(up2dateErrors.CommunicationError(e.args[0])) else: failure = 1 except httplib.IncompleteRead: print("httplib.IncompleteRead") raise_with_tb(up2dateErrors.CommunicationError("httplib.IncompleteRead")) except urllib2.HTTPError: e = sys.exc_info()[1] msg = "\nAn HTTP error occurred:\n" msg = msg + "URL: %s\n" % e.filename msg = msg + "Status Code: %s\n" % e.code msg = msg + "Error Message: %s\n" % e.msg log.log_me(msg) raise_with_tb(up2dateErrors.CommunicationError(msg)) except xmlrpclib.ProtocolError: e = sys.exc_info()[1] log.log_me("A protocol error occurred: %s , attempt #%s," % ( e.errmsg, attempt_count)) if e.errcode == 404: log.log_me("Could not find URL, %s" % (e.url)) log.log_me("Check server name and/or URL, then retry\n"); (errCode, errMsg) = rpclib.reportError(e.headers) reset = 0 if abs(errCode) == 34: log.log_me("Auth token timeout occurred\n errmsg: %s" % errMsg) # this calls login, which in tern calls doCall (ie, # this function) but login should never get a 34, so # should be safe from recursion from up2date_client import up2dateAuth up2dateAuth.updateLoginInfo() # the servers are being throttle to pay users only, catch the # exceptions and display a nice error message if abs(errCode) == 51: log.log_me(_("Server has refused connection due to high load")) raise_with_tb(up2dateErrors.CommunicationError(e.errmsg)) # if we get a 404 from our server, thats pretty # fatal... no point in retrying over and over. Note that # errCode == 17 is specific to our servers, if the # serverURL is just pointing somewhere random they will # get a 0 for errcode and will raise a CommunicationError if abs(errCode) == 17: #in this case, the args are the package string, so lets try to # build a useful error message if type(args[0]) == type([]): pkg = args[0] else: pkg=args[1] if type(pkg) == type([]): pkgName = "%s-%s-%s.%s" % (pkg[0], pkg[1], pkg[2], pkg[4]) else: pkgName = pkg msg = "File Not Found: %s\n%s" % (pkgName, errMsg) log.log_me(msg) raise_with_tb(up2dateErrors.FileNotFoundError(msg)) if not reset: if attempt_count >= attempts: raise_with_tb(up2dateErrors.CommunicationError(e.errmsg)) else: failure = 1 except xmlrpclib.ResponseError: raise_with_tb(up2dateErrors.CommunicationError( "Broken response from the server.")) if ret != None: break else: failure = 1 if failure: # rest for five seconds before trying again time.sleep(5) attempt_count = attempt_count + 1 if attempt_count > attempts: raise up2dateErrors.CommunicationError("The data returned from the server was incomplete") return ret
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