summaryrefslogtreecommitdiffstats
path: root/urlinstall.py
blob: b6c07311499cf64625cd0050911a710632c0c26b (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
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
#
# 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 scheme == "ftp" and path and path.startswith("//"):
            path = "/%2F" + path[1:]

        self.baseUrl = urlparse.urlunsplit((scheme,netloc,path,query,fragid))

        self.currentMedia = []

        # 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