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Edit File : up2dateAuth.py \| Size : 10.69 KB
# import os import pickle import sys import time import socket import subprocess from up2date_client import rpcServer try: # python2 from types import DictType except ImportError: # python3 DictType = dict from rhn import rpclib from up2date_client import clientCaps from up2date_client import config from up2date_client import rhnserver from up2date_client import up2dateErrors from up2date_client import up2dateLog from up2date_client import up2dateUtils loginInfo = None pcklAuthFileName = "/var/spool/up2date/loginAuth.pkl" def getSystemId(): cfg = config.initUp2dateConfig() path = cfg["systemIdPath"] if not os.access(path, os.R_OK): return None f = open(path, "r") ret = f.read() f.close() return ret def getPreferredInterface(): """ Extract the preferred_interface parameter from system_id XML Returns 'IPv4' or 'IPv6' if specified, otherwise 'IPv4' as default """ log = up2dateLog.initLog() systemId = getSystemId() preferred_interface = "IPv4" if systemId is None: return preferred_interface try: # Read the system ID XML and parse it # rpclib.xmlrpclib is the standard way to do this across the project params = rpclib.xmlrpclib.loads(systemId)[0][0] cfg_interface = params.get("preferred_interface", "IPv4") # Only 'IPv4' and 'IPv6' are valid options if preferred_interface in ("IPv4", "IPv6"): preferred_interface = cfg_interface else: log.log_me( "Invalid preferred_interface value '%s' in system_id, " "defaulting to '%s'" % (cfg_interface, preferred_interface) ) return preferred_interface except Exception: # If there's any error parsing the XML, default to IPv4 log.log_me("Failed to parse system_id XML, preferred_interface defaulting to 'IPv4'") log.log_exception(sys.exc_info()) return preferred_interface # if a user has upgraded to a newer release of Red Hat but still # has a systemid from their older release, they need to get an updated # systemid from the RHN servers. This takes care of that. def maybeUpdateVersion(): # if process is in the middle of system upgrade, do not switch channel automatically if os.environ.get('LEAPP_IPU_IN_PROGRESS'): return cfg = config.initUp2dateConfig() try: idVer = rpclib.xmlrpclib.loads(getSystemId())[0][0]['os_release'] except: # they may not even have a system id yet. return 0 systemVer = up2dateUtils.getVersion() if not cfg['channelOverride'] and idVer != systemVer: s = rhnserver.RegistrationRhnServer() newSystemId = s.registration.upgrade_version(getSystemId(), systemVer) path = cfg["systemIdPath"] dir = path[:path.rfind("/")] if not os.access(dir, os.W_OK): try: os.mkdir(dir) except: return 0 if not os.access(dir, os.W_OK): return 0 if os.access(path, os.F_OK): # already have systemid file there; let's back it up savePath = path + ".save" try: os.rename(path, savePath) except: return 0 f = open(path, "w") f.write(newSystemId) f.close() try: os.chmod(path, int('0600', 8)) except: pass def writeCachedLogin(): """ Pickle loginInfo to a file Returns: True -- wrote loginInfo to a pickle file False -- did _not_ write loginInfo to a pickle file """ log = up2dateLog.initLog() log.log_debug("writeCachedLogin() invoked") if not loginInfo: log.log_debug("writeCachedLogin() loginInfo is None, so bailing.") return False data = {'time': time.time(), 'loginInfo': loginInfo} pcklDir = os.path.dirname(pcklAuthFileName) if not os.access(pcklDir, os.W_OK): try: os.mkdir(pcklDir) os.chmod(pcklDir, int('0700', 8)) except: log.log_me("Unable to write pickled loginInfo to %s" % pcklDir) return False pcklAuth = open(pcklAuthFileName, 'wb') os.chmod(pcklAuthFileName, int('0600', 8)) pickle.dump(data, pcklAuth) pcklAuth.close() expireTime = data['time'] + float(loginInfo['X-RHN-Auth-Expire-Offset']) log.log_debug("Wrote pickled loginInfo at ", data['time'], " with expiration of ", expireTime, " seconds.") return True def readCachedLogin(): """ Read pickle info from a file Caches authorization info for connecting to the server. """ log = up2dateLog.initLog() log.log_debug("readCachedLogin invoked") if not os.access(pcklAuthFileName, os.R_OK): log.log_debug("Unable to read pickled loginInfo at: %s" % pcklAuthFileName) return False pcklAuth = open(pcklAuthFileName, 'rb') try: data = pickle.load(pcklAuth) except (EOFError, ValueError): log.log_debug("Unexpected EOF. Probably an empty file, \ regenerate auth file") pcklAuth.close() return False pcklAuth.close() # Check if system_id has changed try: idVer = rpclib.xmlrpclib.loads(getSystemId())[0][0]['system_id'] cidVer = "ID-%s" % data['loginInfo']['X-RHN-Server-Id'] if idVer != cidVer: log.log_debug("system id version changed: %s vs %s" % (idVer, cidVer)) return False except: pass createdTime = data['time'] li = data['loginInfo'] currentTime = time.time() expireTime = createdTime + float(li['X-RHN-Auth-Expire-Offset']) #Check if expired, offset is stored in "X-RHN-Auth-Expire-Offset" log.log_debug("Checking pickled loginInfo, currentTime=", currentTime, ", createTime=", createdTime, ", expire-offset=", float(li['X-RHN-Auth-Expire-Offset'])) if (currentTime > expireTime): log.log_debug("Pickled loginInfo has expired, created = %s, expire = %s." \ %(createdTime, expireTime)) return False _updateLoginInfo(li) log.log_debug("readCachedLogin(): using pickled loginInfo set to expire at ", expireTime) return True def _updateLoginInfo(li): """ Update the global var, "loginInfo" """ global loginInfo if type(li) == DictType: if type(loginInfo) == DictType: # must retain the reference. loginInfo.update(li) else: # this had better be the initial login or we lose the reference. loginInfo = li else: loginInfo = None # allow to pass in a system id for use in rhnreg # a bit of a kluge to make caps work correctly def login(systemId=None, forceUpdate=False, timeout=None): log = up2dateLog.initLog() log.log_debug("login(forceUpdate=%s) invoked" % (forceUpdate)) if not forceUpdate and not loginInfo: if readCachedLogin(): return loginInfo server = rhnserver.RhnServer(timeout=timeout) # send up the capabality info headerlist = clientCaps.caps.headerFormat() for (headerName, value) in headerlist: server.add_header(headerName, value) if systemId == None: systemId = getSystemId() if not systemId: return None maybeUpdateVersion() log.log_me("logging into up2date server") li = server.up2date.login(systemId, socket.getfqdn(), _get_panel_name(log)) # figure out if were missing any needed caps server.capabilities.validate() _updateLoginInfo(li) #update global var, loginInfo writeCachedLogin() #pickle global loginInfo if loginInfo: log.log_me("successfully retrieved authentication token " "from up2date server") log.log_debug("logininfo:", loginInfo) return loginInfo def updateLoginInfo(timeout=None): log = up2dateLog.initLog() log.log_me("updateLoginInfo() login info") # NOTE: login() updates the loginInfo object login(forceUpdate=True, timeout=timeout) if not loginInfo: raise up2dateErrors.AuthenticationError("Unable to authenticate") return loginInfo def getLoginInfo(timeout=None): global loginInfo try: loginInfo = loginInfo except NameError: loginInfo = None if loginInfo: return loginInfo # NOTE: login() updates the loginInfo object login(timeout=timeout) return loginInfo class _FailedToGetPanelName(Exception): pass def _get_panel_name(log): try: panel_name = _get_panel_name_via_cldetect() except _FailedToGetPanelName: # Do not spam logs when we're executed from under cldeploy script # and no cloudlinux packages are yet installed. if not _is_cldeploy_running(): log.log_exception(sys.exc_info()) log.log_me("Failed to get panel name via cldetect, using fallback mechanism") panel_name = _fallback_get_panel_name() return panel_name.lower() def _is_cldeploy_running(): # NOTE(vlebedev): This is more or less a direct port of shell code from cldeploy script. lock_file_path = '/var/lock/cldeploy.lck' cldeploy_running = False pid = None if os.path.exists(lock_file_path): with open(lock_file_path) as f: pid = f.read().strip() if pid: pid_cmdline_path = "/proc/%s/cmdline" % pid if os.path.exists(pid_cmdline_path): with open(pid_cmdline_path) as f: cldeploy_running = 'cldeploy' in f.read() return cldeploy_running def _get_panel_name_via_cldetect(): binary, _ = cmd = ["/usr/bin/cldetect", "--detect-cp-nameonly"] if not os.path.exists(binary): raise _FailedToGetPanelName( "Failed to obtain panel name because '%s' does not exist" % binary ) process = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True) stdout, stderr = process.communicate() if process.returncode != 0: raise _FailedToGetPanelName( "Failed to obtain panel name using '%s' command; stderr: %s" % (" ".join(cmd), stderr) ) return stdout.strip() def _fallback_get_panel_name(): # NOTE(vlebedev): This is more or less a direct port of shell code from cldeploy script. # TODO(vlebedev): Pass $PANEL from cldeploy instead of duplication? if os.path.isdir("/usr/local/psa/admin/"): return "plesk" if os.path.isdir("/usr/local/interworx/"): return "interworx" if os.path.isdir("/usr/local/cpanel/whostmgr/docroot/"): return "cpanel" if os.path.isdir("/usr/local/ispmgr/"): return "ispmgr" if os.path.isdir("/usr/local/directadmin/"): return "directadmin" if os.path.isfile("/usr/local/mgr5/sbin/mgrctl"): return "ispmgr5" return "unknown" Back

Edit File : up2dateAuth.py | Size : 10.69 KB

import os
import pickle
import sys
import time
import socket
import subprocess
from up2date_client import rpcServer

try: # python2
    from types import DictType
except ImportError: # python3
    DictType = dict

from rhn import rpclib
from up2date_client import clientCaps
from up2date_client import config
from up2date_client import rhnserver
from up2date_client import up2dateErrors
from up2date_client import up2dateLog
from up2date_client import up2dateUtils

loginInfo = None
pcklAuthFileName = "/var/spool/up2date/loginAuth.pkl"

def getSystemId():
    cfg = config.initUp2dateConfig()
    path = cfg["systemIdPath"]
    if not os.access(path, os.R_OK):
        return None

f = open(path, "r")
    ret = f.read()

f.close()
    return ret

def getPreferredInterface():
    """
    Extract the preferred_interface parameter from system_id XML
    Returns 'IPv4' or 'IPv6' if specified, otherwise 'IPv4' as default
    """
    log = up2dateLog.initLog()
    systemId = getSystemId()
    preferred_interface = "IPv4"

if systemId is None:
        return preferred_interface

try:
        # Read the system ID XML and parse it
        # rpclib.xmlrpclib is the standard way to do this across the project
        params = rpclib.xmlrpclib.loads(systemId)[0][0]
        cfg_interface = params.get("preferred_interface", "IPv4")
        # Only 'IPv4' and 'IPv6' are valid options
        if preferred_interface in ("IPv4", "IPv6"):
            preferred_interface = cfg_interface
        else:
            log.log_me(
                "Invalid preferred_interface value '%s' in system_id, "
                "defaulting to '%s'" % (cfg_interface, preferred_interface)
            )
        return preferred_interface
    except Exception:
        # If there's any error parsing the XML, default to IPv4
        log.log_me("Failed to parse system_id XML, preferred_interface defaulting to 'IPv4'")
        log.log_exception(*sys.exc_info())
    return preferred_interface

# if a user has upgraded to a newer release of Red Hat but still
# has a systemid from their older release, they need to get an updated
# systemid from the RHN servers.  This takes care of that.
def maybeUpdateVersion():
    # if process is in the middle of system upgrade, do not switch channel automatically
    if os.environ.get('LEAPP_IPU_IN_PROGRESS'):
        return

cfg = config.initUp2dateConfig()
    try:
        idVer = rpclib.xmlrpclib.loads(getSystemId())[0][0]['os_release']
    except:
        # they may not even have a system id yet.
        return 0

systemVer = up2dateUtils.getVersion()

if not cfg['channelOverride'] and idVer != systemVer:
      s = rhnserver.RegistrationRhnServer()

newSystemId = s.registration.upgrade_version(getSystemId(), systemVer)

path = cfg["systemIdPath"]
      dir = path[:path.rfind("/")]
      if not os.access(dir, os.W_OK):
          try:
              os.mkdir(dir)
          except:
              return 0
      if not os.access(dir, os.W_OK):
          return 0

if os.access(path, os.F_OK):
          # already have systemid file there; let's back it up
          savePath = path + ".save"
          try:
              os.rename(path, savePath)
          except:
              return 0

f = open(path, "w")
      f.write(newSystemId)
      f.close()
      try:
          os.chmod(path, int('0600', 8))
      except:
          pass

def writeCachedLogin():
    """
    Pickle loginInfo to a file
    Returns:
    True    -- wrote loginInfo to a pickle file
    False   -- did _not_ write loginInfo to a pickle file
    """
    log = up2dateLog.initLog()
    log.log_debug("writeCachedLogin() invoked")
    if not loginInfo:
        log.log_debug("writeCachedLogin() loginInfo is None, so bailing.")
        return False
    data = {'time': time.time(),
            'loginInfo': loginInfo}

pcklDir = os.path.dirname(pcklAuthFileName)
    if not os.access(pcklDir, os.W_OK):
        try:
            os.mkdir(pcklDir)
            os.chmod(pcklDir, int('0700', 8))
        except:
            log.log_me("Unable to write pickled loginInfo to %s" % pcklDir)
            return False
    pcklAuth = open(pcklAuthFileName, 'wb')
    os.chmod(pcklAuthFileName, int('0600', 8))
    pickle.dump(data, pcklAuth)
    pcklAuth.close()
    expireTime = data['time'] + float(loginInfo['X-RHN-Auth-Expire-Offset'])
    log.log_debug("Wrote pickled loginInfo at ", data['time'], " with expiration of ",
            expireTime, " seconds.")
    return True

def readCachedLogin():
    """
    Read pickle info from a file
    Caches authorization info for connecting to the server.
    """
    log = up2dateLog.initLog()
    log.log_debug("readCachedLogin invoked")
    if not os.access(pcklAuthFileName, os.R_OK):
        log.log_debug("Unable to read pickled loginInfo at: %s" % pcklAuthFileName)
        return False
    pcklAuth = open(pcklAuthFileName, 'rb')
    try:
        data = pickle.load(pcklAuth)
    except (EOFError, ValueError):
        log.log_debug("Unexpected EOF. Probably an empty file, \
                       regenerate auth file")
        pcklAuth.close()
        return False
    pcklAuth.close()
    # Check if system_id has changed
    try:
        idVer = rpclib.xmlrpclib.loads(getSystemId())[0][0]['system_id']
        cidVer = "ID-%s" % data['loginInfo']['X-RHN-Server-Id']
        if idVer != cidVer:
            log.log_debug("system id version changed: %s vs %s" % (idVer, cidVer))
            return False
    except:
        pass
    createdTime = data['time']
    li = data['loginInfo']
    currentTime = time.time()
    expireTime = createdTime + float(li['X-RHN-Auth-Expire-Offset'])
    #Check if expired, offset is stored in "X-RHN-Auth-Expire-Offset"
    log.log_debug("Checking pickled loginInfo, currentTime=", currentTime,
            ", createTime=", createdTime, ", expire-offset=",
            float(li['X-RHN-Auth-Expire-Offset']))
    if (currentTime > expireTime):
        log.log_debug("Pickled loginInfo has expired, created = %s, expire = %s." \
                %(createdTime, expireTime))
        return False
    _updateLoginInfo(li)
    log.log_debug("readCachedLogin(): using pickled loginInfo set to expire at ", expireTime)
    return True

def _updateLoginInfo(li):
    """
    Update the global var, "loginInfo"
    """
    global loginInfo
    if type(li) == DictType:
        if type(loginInfo) == DictType:
            # must retain the reference.
            loginInfo.update(li)
        else:
            # this had better be the initial login or we lose the reference.
            loginInfo = li
    else:
        loginInfo = None

# allow to pass in a system id for use in rhnreg
# a bit of a kluge to make caps work correctly
def login(systemId=None, forceUpdate=False, timeout=None):
    log = up2dateLog.initLog()
    log.log_debug("login(forceUpdate=%s) invoked" % (forceUpdate))
    if not forceUpdate and not loginInfo:
        if readCachedLogin():
            return loginInfo

server = rhnserver.RhnServer(timeout=timeout)

# send up the capabality info
    headerlist = clientCaps.caps.headerFormat()
    for (headerName, value) in headerlist:
        server.add_header(headerName, value)

if systemId == None:
        systemId = getSystemId()

if not systemId:
        return None

maybeUpdateVersion()
    log.log_me("logging into up2date server")

li = server.up2date.login(systemId, socket.getfqdn(), _get_panel_name(log))

# figure out if were missing any needed caps
    server.capabilities.validate()
    _updateLoginInfo(li) #update global var, loginInfo
    writeCachedLogin() #pickle global loginInfo

if loginInfo:
        log.log_me("successfully retrieved authentication token "
                   "from up2date server")

log.log_debug("logininfo:", loginInfo)
    return loginInfo

def updateLoginInfo(timeout=None):
    log = up2dateLog.initLog()
    log.log_me("updateLoginInfo() login info")
    # NOTE: login() updates the loginInfo object
    login(forceUpdate=True, timeout=timeout)
    if not loginInfo:
        raise up2dateErrors.AuthenticationError("Unable to authenticate")
    return loginInfo

def getLoginInfo(timeout=None):
    global loginInfo
    try:
        loginInfo = loginInfo
    except NameError:
        loginInfo = None
    if loginInfo:
        return loginInfo
    # NOTE: login() updates the loginInfo object
    login(timeout=timeout)
    return loginInfo

class _FailedToGetPanelName(Exception):
    pass

def _get_panel_name(log):
    try:
        panel_name = _get_panel_name_via_cldetect()
    except _FailedToGetPanelName:
        # Do not spam logs when we're executed from under cldeploy script
        # and no cloudlinux packages are yet installed.
        if not _is_cldeploy_running():
            log.log_exception(*sys.exc_info())
            log.log_me("Failed to get panel name via cldetect, using fallback mechanism")
        panel_name = _fallback_get_panel_name()
    return panel_name.lower()

def _is_cldeploy_running():
    # NOTE(vlebedev): This is more or less a direct port of shell code from cldeploy script.
    lock_file_path = '/var/lock/cldeploy.lck'
    cldeploy_running = False
    pid = None

if os.path.exists(lock_file_path):
        with open(lock_file_path) as f:
            pid = f.read().strip()
    if pid:
        pid_cmdline_path = "/proc/%s/cmdline" % pid
        if os.path.exists(pid_cmdline_path):
            with open(pid_cmdline_path) as f:
                cldeploy_running = 'cldeploy' in f.read()
    return cldeploy_running

def _get_panel_name_via_cldetect():
    binary, _ = cmd = ["/usr/bin/cldetect", "--detect-cp-nameonly"]
    if not os.path.exists(binary):
        raise _FailedToGetPanelName(
            "Failed to obtain panel name because '%s' does not exist"
            % binary
        )

process = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, universal_newlines=True)
    stdout, stderr = process.communicate()
    if process.returncode != 0:
        raise _FailedToGetPanelName(
            "Failed to obtain panel name using '%s' command; stderr: %s"
            % (" ".join(cmd), stderr)
        )

return stdout.strip()

def _fallback_get_panel_name():
    # NOTE(vlebedev): This is more or less a direct port of shell code from cldeploy script.
    # TODO(vlebedev): Pass $PANEL from cldeploy instead of duplication?
    if os.path.isdir("/usr/local/psa/admin/"):
        return "plesk"
    if os.path.isdir("/usr/local/interworx/"):
        return "interworx"
    if os.path.isdir("/usr/local/cpanel/whostmgr/docroot/"):
        return "cpanel"
    if os.path.isdir("/usr/local/ispmgr/"):
        return "ispmgr"
    if os.path.isdir("/usr/local/directadmin/"):
        return "directadmin"
    if os.path.isfile("/usr/local/mgr5/sbin/mgrctl"):
        return "ispmgr5"
    return "unknown"

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