summaryrefslogtreecommitdiffstats
path: root/urlinstall.py
blob: cad00184a8809f402b25f851f5f54ed364a917a5 (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
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
#
# 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 hdrlist import groupSetFromCompsFile, HeaderList
from installmethod import InstallMethod, FileCopyException
import os
import rpm
import time
import string
import struct
import socket
import urlgrabber.grabber as grabber

from snack import *
from constants import *

from rhpl.translate import _

# 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

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

    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("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 getRPMFilename(self, h, timer, callback=None):

	fullPath = "/%s/RPMS/%s" % (productPath, h[FILENAME])

	return self.getFilename(fullPath, callback=callback, disc = h[DISCNUM])

    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("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 readHeaders(self):
	hdurl = "%s/%s/base/hdlist" % (self.baseUrl, productPath)

	try:
	    url = grabber.urlopen (hdurl, retry = 5)
	except grabber.URLGrabError, e:
	    log ("URLGrabError: %s occurred getting %s", e.strerror, hdurl)
	    raise FileCopyException

	raw = url.read(16)
	if raw is None or len(raw) < 1:
	    raise TypeError, "header list is empty!"
	
	hl = []
	while (raw and len(raw)>0):
	    info = struct.unpack("iiii", raw)
	    magic1 = socket.ntohl(info[0]) & 0xffffffffL
	    if (magic1 != 0x8eade801L 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("%s/base/hdlist2" % (productPath,), callback=None)
	hdlist.mergeFullHeaders(fn)
	os.unlink(fn)

    def setIntf(self, intf):
	self.intf = intf

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

        if url.startswith("ftp"):
            isFtp = 1
        else:
            isFtp = 0

        # build up the url.  this is tricky so that we can replace
        # the first instance of // with /%3F to do absolute URLs right
        i = string.index(url, '://') + 3
        self.baseUrl = url[:i]
        rem = url[i:]

        i = string.index(rem, '/') + 1
        self.baseUrl = self.baseUrl + rem[:i]
        rem = rem[i:]
        
        # encoding fun so that we can handle absolute paths
        if rem.startswith("/") and isFtp:
            rem = "%2F" + rem[1:]

        self.baseUrl = self.baseUrl + rem

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

	# self.baseUrl points at the path which contains the 'RedHat'
	# 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

	self.intf = None