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# Install method for disk image installs (CD & NFS)
from comps import ComponentSet, HeaderList
from installmethod import InstallMethod
import os
import rpm
import time
import urllib
import string
import struct
import socket
# we import these explicitly because urllib loads them dynamically, which stinks
import ftplib
import httplib
import StringIO
import todo
FILENAME = 1000000
class UrlInstallMethod(InstallMethod):
def readComps(self, hdlist):
return ComponentSet(self.baseUrl + '/RedHat/base/comps',
hdlist)
def getFilename(self, h):
root = "/mnt/sysimage"
pathlist = [ "/var/tmp", "/tmp",
"/." ]
for p in pathlist:
if (os.access(root + p, os.X_OK)):
tmppath = root + p
break
file = tmppath + h[FILENAME]
connected = 0
while not connected:
try:
urllib.urlretrieve(self.baseUrl + "/RedHat/RPMS/" + h[FILENAME],
file)
except IOError, (errnum, msg):
# print "IOError occurred, trying again"
time.sleep(5)
else:
connected = 1
return file
def unlinkFilename(self, fullName):
os.remove(fullName)
def readHeaders(self):
connected = 0
while not connected:
try:
url = urllib.urlopen(self.baseUrl + "/RedHat/base/hdlist")
except IOError, (errnum, msg):
# print "IOError occurred, trying again"
time.sleep(5)
else:
connected = 1
raw = url.read(16)
hl = []
while (raw):
info = struct.unpack("iiii", raw)
magic1 = socket.ntohl(info[0]) & 0xffffffff
if (magic1 != 0x8eade801 or info[1]):
raise TypeError, "bad magic in header"
il = socket.ntohl(info[2])
dl = socket.ntohl(info[3])
totalSize = il * 16 + dl;
hdrString = raw[8:] + url.read(totalSize)
hdr = rpm.headerLoad(hdrString)
hl.append(hdr)
raw = url.read(16)
return HeaderList(hl)
def __init__(self, url):
InstallMethod.__init__(self)
i = string.index(url, '://') + 2
self.baseUrl = url[0:i]
rem = url[i:]
new = string.replace(rem, "//", "/")
while (new != rem):
rem = new
new = string.replace(rem, "//", "/")
rem = new
self.baseUrl = self.baseUrl + rem
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