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|
#
# urlinstall.py - URL based install source method
#
# Erik Troan <ewt@redhat.com>
#
# Copyright 1999-2006 Red Hat, Inc.
#
# This software may be freely redistributed under the terms of the GNU
# library public license.
#
# You should have received a copy of the GNU Library Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
from installmethod import InstallMethod, FileCopyException
import os
import time
import string
import struct
import socket
import urlparse
import urlgrabber.grabber as grabber
from snack import *
from constants import *
from rhpl.translate import _
import logging
log = logging.getLogger("anaconda")
def urlretrieve(location, file, callback=None):
"""Downloads from location and saves to file."""
if callback is not None:
callback(_("Connecting..."), 0)
try:
url = grabber.urlopen(location)
except grabber.URLGrabError, e:
raise IOError (e.errno, e.strerror)
# see if there is a size
try:
filesize = int(url.info()["Content-Length"])
if filesize == 0:
filesize = None
except:
filesize = None
# create output file
f = open(file, 'w+')
# if they dont want a status callback just do it in one big swoop
if callback is None:
f.write(url.read())
else:
buf = url.read(65535)
tot = len(buf)
while len(buf) > 0:
if filesize is not None:
callback("downloading", "%3d%%" % ((100*tot)/filesize,))
else:
callback("downloading", "%dKB" % (tot/1024,))
f.write(buf)
buf = url.read(65535)
tot += len(buf)
f.close()
url.close()
class UrlInstallMethod(InstallMethod):
def badPackageError(self, pkgname):
return _("The file %s cannot be opened. This is due to a missing "
"file or perhaps a corrupt package. Please verify your "
"mirror contains all required packages, and try using a "
"different one.\n\n"
"If you reboot, your system will be left in an inconsistent "
"state that will likely require reinstallation.\n\n") % pkgname
def getFilename(self, filename, callback=None, destdir=None, retry=1,
disc = 1):
if destdir is None:
tmppath = self.getTempPath()
else:
tmppath = destdir
if self.multiDiscs:
base = "%s/disc%d" %(self.pkgUrl, disc)
else:
base = self.pkgUrl
fullPath = base + "/" + filename
file = tmppath + "/" + os.path.basename(fullPath)
tries = 0
while tries < 5:
try:
rc=urlretrieve(fullPath, file, callback=callback)
except IOError, (errnum, msg):
log.critical("IOError %s occurred getting %s: %s"
%(errnum, fullPath.replace("%", "%%"), str(msg)))
if not retry:
raise FileCopyException
time.sleep(5)
else:
break
tries = tries + 1
if tries >= 5:
raise FileCopyException
return file
def copyFileToTemp(self, filename):
tmppath = self.getTempPath()
if self.multiDiscs:
base = "%s/disc1" % (self.pkgUrl,)
else:
base = self.pkgUrl
fullPath = base + "/" + filename
file = tmppath + "/" + os.path.basename(fullPath)
tries = 0
while tries < 5:
try:
urlretrieve(fullPath, file)
except IOError, (errnum, msg):
log.critical("IOError %s occurred getting %s: %s",
errnum, fullPath.replace("%", "%%"), str(msg))
time.sleep(5)
else:
break
tries = tries + 1
if tries >= 5:
raise FileCopyException
return file
def unlinkFilename(self, fullName):
os.remove(fullName)
def setIntf(self, intf):
self.intf = intf
def getMethodUri(self):
return self.baseUrl
def __init__(self, url, rootPath, intf):
InstallMethod.__init__(self, url, rootPath, intf)
(scheme, netloc, path, query, fragid) = urlparse.urlsplit(url)
try:
socket.inet_pton(socket.AF_INET6, netloc)
netloc = '[' + netloc + ']'
except:
pass
# encoding fun so that we can handle absolute paths
if path[1] == '/' and scheme == 'ftp':
path = "/%2F" + path[1:]
self.baseUrl = urlparse.urlunsplit((scheme,netloc,path,query,fragid))
# FIXME: does not work
# # self.baseUrl points at the path which contains the 'product'
# # directory with the hdlist.
#
# if self.baseUrl[-6:] == "/disc1":
# self.multiDiscs = 1
# self.pkgUrl = self.baseUrl[:-6]
# else:
# self.multiDiscs = 0
# self.pkgUrl = self.baseUrl
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