summaryrefslogtreecommitdiffstats
path: root/urlinstall.py
blob: 509482b7fc8aec3d53ae8be902180b67ca71befc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
#
# urlinstall.py - URL based install source method
#
# Erik Troan <ewt@redhat.com>
#
# Copyright 1999-2002 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 comps import ComponentSet, HeaderList
from installmethod import InstallMethod
import os
import rpm404 as rpm
import time
import urllib
import string
import struct
import socket

# we import these explicitly because urllib loads them dynamically, which
# stinks -- and we need to have them imported for the --traceonly option
import ftplib
import httplib
import StringIO

from rhpl.log import log

FILENAME = 1000000
DISCNUM  = 1000002

class UrlInstallMethod(InstallMethod):

    def readCompsViaMethod(self, hdlist):
	fname = self.findBestFileMatch(None, 'comps.xml')
	# if not local then assume its on host
	if fname is None:
	    fname = self.baseUrl + '/RedHat/base/comps.xml'
	    log("Comps not in update dirs, using %s",fname)
	return ComponentSet(fname, hdlist)

    def getFilename(self, h, timer):
        tmppath = self.getTempPath()
        
	# h doubles as a filename -- gross
	if type("/") == type(h):
	    fullPath = self.baseUrl + "/" + h
	else:
	    if self.multiDiscs:
		base = "%s/disc%d" % (self.pkgUrl, h[DISCNUM])
	    else:
		base = self.pkgUrl

	    fullPath = base + "/RedHat/RPMS/" + h[FILENAME]

	file = tmppath + os.path.basename(fullPath)

        connected = 0
        while not connected:
            try:
                urllib.urlretrieve(fullPath, file)
            except IOError, (errnum, msg):
		log("IOError %s occurred getting %s: %s",
			errnum, fullPath, str(msg))
                time.sleep(5)
            else:
                connected = 1
                
	return file

    def copyFileToTemp(self, filename):
        tmppath = self.getTempPath()

        if self.multiDics:
            base = "%s/disc1" % (self.pkgUrl,)
        else:
            base = self.pkgUrl
        fullPath = base + filename

        file = tmppath + os.path.basename(fullPath)

        connected = 0
        while not connected:
            try:
                urllib.urlretrieve(fullPath, file)
            except IOError, (errnum, msg):
		log("IOError %s occurred getting %s: %s",
			errnum, fullPath, str(msg))
                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):
		log("IOError %s occurred getting %s: %s",
			errnum, self.baseUrl + "/RedHat/base/hdlist", msg)
                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 mergeFullHeaders(self, hdlist):
	fn = self.getFilename("RedHat/base/hdlist2", None)
	hdlist.mergeFullHeaders(fn)
	os.unlink(fn)

    def __init__(self, url, rootPath):
	InstallMethod.__init__(self, rootPath)

	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
        if rem and rem[-1] == "/":
            rem = rem[:-1]
	self.baseUrl = self.baseUrl + rem

	if self.baseUrl[-6:] == "/disc1":
	    self.multiDiscs = 1
	    self.pkgUrl = self.baseUrl[:-6]
	else:
	    self.multiDiscs = 0
	    self.pkgUrl = self.baseUrl