author | Bart Smaalders <Bart.Smaalders@Sun.COM> |
Fri, 15 Aug 2008 14:33:39 -0700 | |
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parent 461 | 37cf3ac75e37 |
child 487 | 9cb85c3d8491 |
permissions | -rw-r--r-- |
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#!/usr/bin/python2.4 |
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# |
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# CDDL HEADER START |
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# |
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# The contents of this file are subject to the terms of the |
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# Common Development and Distribution License (the "License"). |
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# You may not use this file except in compliance with the License. |
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# |
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# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
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# or http://www.opensolaris.org/os/licensing. |
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# See the License for the specific language governing permissions |
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# and limitations under the License. |
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# |
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# When distributing Covered Code, include this CDDL HEADER in each |
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# file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
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# If applicable, add the following below this CDDL HEADER, with the |
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# fields enclosed by brackets "[]" replaced with your own identifying |
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# information: Portions Copyright [yyyy] [name of copyright owner] |
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# |
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# CDDL HEADER END |
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# |
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# Copyright 2008 Sun Microsystems, Inc. All rights reserved. |
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# Use is subject to license terms. |
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import errno |
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import httplib |
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import os |
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import platform |
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import re |
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import sha |
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import socket |
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import urllib |
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import urllib2 |
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import urlparse |
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import sys |
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import zlib |
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import time |
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import calendar |
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import shutil |
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from stat import * |
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import pkg.urlhelpers as urlhelpers |
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import pkg.portable as portable |
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from pkg.client.imagetypes import img_type_names, IMG_NONE |
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from pkg import VERSION |
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def time_to_timestamp(t): |
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"""convert seconds since epoch to %Y%m%dT%H%M%SZ format""" |
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# XXX optimize? |
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return time.strftime("%Y%m%dT%H%M%SZ", time.gmtime(t)) |
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def timestamp_to_time(ts): |
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"""convert %Y%m%dT%H%M%SZ format to seconds since epoch""" |
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# XXX optimize? |
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return calendar.timegm(time.strptime(ts, "%Y%m%dT%H%M%SZ")) |
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def copyfile(src_path, dst_path): |
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"""copy a file, preserving attributes, ownership, etc. where possible""" |
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stat = os.lstat(src_path) |
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shutil.copy2(src_path, dst_path) |
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try: |
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portable.chown(dst_path, stat.st_uid, stat.st_gid) |
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except OSError, e: |
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if e.errno != errno.EPERM: |
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raise |
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def hash_file_name(f): |
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"""Return the two-level path fragment for the given filename, which is |
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assumed to be a content hash of at least 8 distinct characters.""" |
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return os.path.join("%s" % f[0:2], "%s" % f[2:8], "%s" % f) |
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def url_affix_trailing_slash(u): |
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if u[-1] != '/': |
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u = u + '/' |
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return u |
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_client_version = "pkg/%s (%s %s; %s %s; %%s)" % \ |
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(VERSION, portable.util.get_canonical_os_name(), platform.machine(), |
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portable.util.get_os_release(), platform.version()) |
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def versioned_urlopen(base_uri, operation, versions = [], tail = None, |
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data = None, headers = {}, ssl_creds = None, imgtype = IMG_NONE): |
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"""Open the best URI for an operation given a set of versions. |
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Both the client and the server may support multiple versions of |
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the protocol of a particular operation. The client will pass |
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this method an ordered array of versions it understands, along |
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with the base URI and the operation it wants. This method will |
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open the URL corresponding to the best version both the client |
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and the server understand, returning a tuple of the open URL and |
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the version used on success, and throwing an exception if no |
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matching version can be found. |
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""" |
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# Ignore http_proxy for localhost case, by overriding |
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# default proxy behaviour of urlopen(). |
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netloc = urlparse.urlparse(base_uri)[1] |
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if not netloc: |
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raise ValueError, "Malformed URL: %s" % base_uri |
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if urllib.splitport(netloc)[0] == "localhost": |
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# XXX cache this opener? |
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proxy_handler = urllib2.ProxyHandler({}) |
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opener_dir = urllib2.build_opener(proxy_handler) |
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url_opener = opener_dir.open |
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elif ssl_creds and ssl_creds != (None, None): |
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cert_handler = urlhelpers.HTTPSCertHandler( |
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key_file = ssl_creds[0], cert_file = ssl_creds[1]) |
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opener_dir = urllib2.build_opener(cert_handler) |
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url_opener = opener_dir.open |
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|
113 |
else: |
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|
114 |
url_opener = urllib2.urlopen |
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|
115 |
|
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diff
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|
116 |
for version in versions: |
351
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|
117 |
if base_uri[-1] != '/': |
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|
118 |
base_uri += '/' |
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changeset
|
119 |
|
145
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|
120 |
if tail: |
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|
121 |
uri = urlparse.urljoin(base_uri, "%s/%s/%s" % \ |
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|
122 |
(operation, version, tail)) |
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|
123 |
else: |
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|
124 |
uri = urlparse.urljoin(base_uri, "%s/%s" % \ |
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|
125 |
(operation, version)) |
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|
126 |
|
319
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|
127 |
headers["User-Agent"] = \ |
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|
128 |
_client_version % img_type_names[imgtype] |
145
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|
129 |
req = urllib2.Request(url = uri, headers = headers) |
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|
130 |
if data is not None: |
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|
131 |
req.add_data(data) |
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|
132 |
|
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|
133 |
try: |
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|
134 |
c = url_opener(req) |
153
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|
135 |
except urllib2.HTTPError, e: |
386
5cd680466abe
2147 depot should check port instead of showing traceback if port binding fails
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|
136 |
if e.code != httplib.NOT_FOUND or \ |
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|
137 |
e.msg != "Version not supported": |
145
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|
138 |
raise |
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|
139 |
continue |
260
a1b77322abb2
255 Symbolic HTTP response codes should be used
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|
140 |
# XXX catch BadStatusLine and convert to INTERNAL_SERVER_ERROR? |
145
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|
141 |
|
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|
142 |
return c, version |
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|
143 |
else: |
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|
144 |
# Couldn't find a version that we liked. |
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|
145 |
raise RuntimeError, \ |
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|
146 |
"%s doesn't speak a known version of %s operation" % \ |
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|
147 |
(base_uri, operation) |
327
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|
148 |
|
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|
149 |
|
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|
150 |
_hostname_re = re.compile("^[a-zA-Z0-9](?:[a-zA-Z0-9\-]*[a-zA-Z0-9]+\.?)*$") |
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|
151 |
_invalid_host_chars = re.compile(".*[^a-zA-Z0-9\-\.]+") |
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|
152 |
_valid_proto = ["http", "https"] |
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|
153 |
|
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|
154 |
def valid_auth_prefix(prefix): |
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|
155 |
"""Verify that the authority prefix only contains valid characters.""" |
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|
156 |
|
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|
157 |
# This is a workaround for the the hostname_re being slow when |
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|
158 |
# it comes to finding invalid characters in the prefix string. |
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|
159 |
|
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|
160 |
if _invalid_host_chars.match(prefix): |
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|
161 |
# prefix bad chars |
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|
162 |
return False |
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changeset
|
163 |
|
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|
164 |
if _hostname_re.match(prefix): |
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|
165 |
return True |
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changeset
|
166 |
|
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changeset
|
167 |
return False |
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changeset
|
168 |
|
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changeset
|
169 |
def valid_auth_url(url): |
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|
170 |
"""Verify that the authority URL contains only valid characters.""" |
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changeset
|
171 |
|
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changeset
|
172 |
# First split the URL and check if the scheme is one we support |
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|
173 |
o = urlparse.urlsplit(url) |
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diff
changeset
|
174 |
|
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diff
changeset
|
175 |
if not o[0] in _valid_proto: |
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319
diff
changeset
|
176 |
return False |
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diff
changeset
|
177 |
|
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diff
changeset
|
178 |
# Next verify that the network location is valid |
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diff
changeset
|
179 |
host, port = urllib.splitport(o[1]) |
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319
diff
changeset
|
180 |
|
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diff
changeset
|
181 |
if not host or _invalid_host_chars.match(host): |
6c6bd07efe8d
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319
diff
changeset
|
182 |
return False |
6c6bd07efe8d
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parents:
319
diff
changeset
|
183 |
|
6c6bd07efe8d
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parents:
319
diff
changeset
|
184 |
if _hostname_re.match(host): |
6c6bd07efe8d
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parents:
319
diff
changeset
|
185 |
return True |
6c6bd07efe8d
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parents:
319
diff
changeset
|
186 |
|
6c6bd07efe8d
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parents:
319
diff
changeset
|
187 |
return False |
342
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327
diff
changeset
|
188 |
|
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327
diff
changeset
|
189 |
def gunzip_from_stream(gz, outfile): |
5e1f4d8429bf
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diff
changeset
|
190 |
"""Decompress a gzipped input stream into an output stream. |
5e1f4d8429bf
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diff
changeset
|
191 |
|
5e1f4d8429bf
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diff
changeset
|
192 |
The argument 'gz' is an input stream of a gzipped file (XXX make it do |
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327
diff
changeset
|
193 |
either a gzipped file or raw zlib compressed data), and 'outfile' is is |
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327
diff
changeset
|
194 |
an output stream. gunzip_from_stream() decompresses data from 'gz' and |
5e1f4d8429bf
669 Need method to print package licenses before installation
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diff
changeset
|
195 |
writes it to 'outfile', and returns the hexadecimal SHA-1 sum of that |
5e1f4d8429bf
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327
diff
changeset
|
196 |
data. |
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327
diff
changeset
|
197 |
""" |
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327
diff
changeset
|
198 |
|
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diff
changeset
|
199 |
FHCRC = 2 |
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327
diff
changeset
|
200 |
FEXTRA = 4 |
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diff
changeset
|
201 |
FNAME = 8 |
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diff
changeset
|
202 |
FCOMMENT = 16 |
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diff
changeset
|
203 |
|
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diff
changeset
|
204 |
# Read the header |
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diff
changeset
|
205 |
magic = gz.read(2) |
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327
diff
changeset
|
206 |
if magic != "\037\213": |
5e1f4d8429bf
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diff
changeset
|
207 |
raise IOError, "Not a gzipped file" |
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diff
changeset
|
208 |
method = ord(gz.read(1)) |
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327
diff
changeset
|
209 |
if method != 8: |
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diff
changeset
|
210 |
raise IOError, "Unknown compression method" |
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diff
changeset
|
211 |
flag = ord(gz.read(1)) |
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diff
changeset
|
212 |
gz.read(6) # Discard modtime, extraflag, os |
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diff
changeset
|
213 |
|
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diff
changeset
|
214 |
# Discard an extra field |
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diff
changeset
|
215 |
if flag & FEXTRA: |
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diff
changeset
|
216 |
xlen = ord(gz.read(1)) |
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diff
changeset
|
217 |
xlen = xlen + 256 * ord(gz.read(1)) |
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changeset
|
218 |
gz.read(xlen) |
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diff
changeset
|
219 |
|
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diff
changeset
|
220 |
# Discard a null-terminated filename |
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diff
changeset
|
221 |
if flag & FNAME: |
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diff
changeset
|
222 |
while True: |
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diff
changeset
|
223 |
s = gz.read(1) |
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327
diff
changeset
|
224 |
if not s or s == "\000": |
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diff
changeset
|
225 |
break |
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diff
changeset
|
226 |
|
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diff
changeset
|
227 |
# Discard a null-terminated comment |
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diff
changeset
|
228 |
if flag & FCOMMENT: |
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diff
changeset
|
229 |
while True: |
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changeset
|
230 |
s = gz.read(1) |
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diff
changeset
|
231 |
if not s or s == "\000": |
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|
232 |
break |
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|
233 |
|
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234 |
# Discard a 16-bit CRC |
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235 |
if flag & FHCRC: |
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236 |
gz.read(2) |
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|
237 |
|
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238 |
shasum = sha.new() |
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239 |
dcobj = zlib.decompressobj(-zlib.MAX_WBITS) |
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|
240 |
|
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|
241 |
while True: |
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242 |
buf = gz.read(64 * 1024) |
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243 |
if buf == "": |
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244 |
ubuf = dcobj.flush() |
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245 |
shasum.update(ubuf) |
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246 |
outfile.write(ubuf) |
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247 |
break |
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248 |
ubuf = dcobj.decompress(buf) |
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249 |
shasum.update(ubuf) |
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250 |
outfile.write(ubuf) |
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|
251 |
|
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252 |
return shasum.hexdigest() |
384
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253 |
|
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254 |
class PipeError(Exception): |
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255 |
""" Pipe exception. """ |
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256 |
|
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257 |
def __init__(self, args=None): |
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258 |
self.args = args |
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259 |
|
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260 |
def msg(*text): |
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261 |
""" Emit a message. """ |
384
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|
262 |
|
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263 |
try: |
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264 |
print ' '.join([str(l) for l in text]) |
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265 |
except IOError, e: |
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266 |
if e.errno == errno.EPIPE: |
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267 |
raise PipeError, e |
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268 |
raise |
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269 |
|
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270 |
def emsg(*text): |
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271 |
""" Emit a message to sys.stderr. """ |
384
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272 |
|
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273 |
try: |
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274 |
print >> sys.stderr, ' '.join([str(l) for l in text]) |
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275 |
except IOError, e: |
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276 |
if e.errno == errno.EPIPE: |
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277 |
raise PipeError, e |
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278 |
raise |
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279 |
|
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280 |
def port_available(host, port): |
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281 |
"""Returns True if the indicated port is available to bind to; |
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282 |
otherwise returns False.""" |
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|
283 |
|
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284 |
port = int(port) |
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285 |
if host is None: |
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286 |
# None is the same as INADDR_ANY, which for our purposes, |
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287 |
# should be the hostname. |
386
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|
288 |
host = socket.gethostname() |
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|
289 |
|
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290 |
try: |
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291 |
sock = None |
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|
292 |
|
386
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293 |
# Get the address family of our host (to allow for IPV6, etc.). |
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294 |
for entry in socket.getaddrinfo(host, port, socket.AF_UNSPEC, |
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|
295 |
socket.SOCK_STREAM): |
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|
296 |
family, socktype, proto, canonname, sockaddr = entry |
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|
297 |
|
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|
298 |
# First try to bind to the specified port to see if we |
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|
299 |
# have an access problem or some other issue. |
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|
300 |
sock = socket.socket(family, socktype, proto) |
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|
301 |
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, |
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|
302 |
1) |
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|
303 |
sock.bind((host, port)) |
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|
304 |
sock.close() |
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|
305 |
|
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|
306 |
# Now try to connect to the specified port to see if it |
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|
307 |
# is already in use. |
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|
308 |
sock = socket.socket(family, socktype, proto) |
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|
309 |
|
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|
310 |
# Some systems timeout rather than refuse a connection. |
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|
311 |
# This avoids getting stuck on SYN_SENT for those |
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|
312 |
# systems (such as certain firewalls). |
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|
313 |
sock.settimeout(1.0) |
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|
314 |
|
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|
315 |
sock.connect((host, port)) |
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|
316 |
sock.close() |
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|
317 |
|
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|
318 |
# If we successfully connected... |
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|
319 |
raise socket.error(errno.EBUSY, |
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|
320 |
'Port already in use') |
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|
321 |
|
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|
322 |
except socket.error, e: |
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|
323 |
errnum = e[0] |
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|
324 |
try: |
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325 |
text = e[1] |
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|
326 |
except IndexError: |
451
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|
327 |
text = e[0] |
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|
328 |
|
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|
329 |
if sock: |
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|
330 |
sock.close() |
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|
331 |
|
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|
332 |
if errnum == errno.ECONNREFUSED: |
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|
333 |
# If we could not connect to the port, we know it isn't |
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|
334 |
# in use. |
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|
335 |
return True, None |
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|
336 |
|
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337 |
return False, text |
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|
338 |
|
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|
339 |
def bytes_to_str(bytes): |
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|
340 |
"""Returns a human-formatted string representing the number of bytes |
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341 |
in the largest unit possible.""" |
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|
342 |
|
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343 |
units = [ |
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|
344 |
("B", 2**10), |
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345 |
("kB", 2**20), |
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346 |
("MB", 2**30), |
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347 |
("GB", 2**40), |
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348 |
("TB", 2**50), |
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349 |
("PB", 2**60), |
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350 |
("EB", 2**70) |
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351 |
] |
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352 |
|
451
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353 |
for uom, limit in units: |
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354 |
if uom != "EB" and bytes >= limit: |
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355 |
# Try the next largest unit of measure unless this is |
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356 |
# the largest or if the byte size is within the current |
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357 |
# unit of measure's range. |
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358 |
continue |
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359 |
else: |
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360 |
return "%.2f %s" % (round(bytes / float( |
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361 |
limit / 2**10), 2), uom) |
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362 |
|
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363 |
def get_rel_path(request, uri): |
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364 |
# Calculate the depth of the current request path relative to our base |
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365 |
# uri. path_info always ends with a '/' -- so ignore it when |
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366 |
# calculating depth. |
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367 |
depth = request.path_info.count("/") - 1 |
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368 |
return ("../" * depth) + uri |
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369 |
|
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370 |
def get_res_path(request, name): |
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return get_rel_path(request, "%s/%s" % ("static", name)) |
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372 |
|
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373 |
# Set the maximum number of timeouts before we giveup. This can |
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374 |
# be adjusted by setting the environment variable PKG_TIMEOUT_MAX |
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375 |
MAX_TIMEOUT_COUNT = 4 |
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376 |
|
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377 |
class TransferTimedOutException(Exception): |
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378 |
def __init__(self, args = None): |
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379 |
self.args = args |
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380 |
|
461
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381 |
class TransferContentException(Exception): |
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382 |
def __init__(self, args = None): |
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383 |
self.args = args |
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384 |
|
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385 |
class InvalidContentException(Exception): |
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386 |
def __init__(self, action, hashval): |
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387 |
self.action = action |
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388 |
self.hashval = hashval |
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|
389 |
|
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390 |
def __str__(self): |
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391 |
str = "Action with path %s should have hash %s. Computed hash %s instead." % \ |
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392 |
(self.action.attrs["path"], self.action.attrs["chash"], |
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|
393 |
self.hashval) |
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394 |
return str |
429
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|
395 |
|
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|
396 |
# Default maximum memory useage during indexing |
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|
397 |
# This is a soft cap since memory usage is estimated. |
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|
398 |
try: |
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|
399 |
phys_pages = os.sysconf("SC_PHYS_PAGES") |
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|
400 |
page_size = os.sysconf("SC_PAGE_SIZE") |
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|
401 |
SERVER_DEFAULT_MEM_USE_KB = (phys_pages / 1024.0) * page_size / 3 |
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|
402 |
CLIENT_DEFAULT_MEM_USE_KB = SERVER_DEFAULT_MEM_USE_KB / 2.0 |
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changeset
|
403 |
|
6c9cbb6e6600
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changeset
|
404 |
except: |
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|
405 |
CLIENT_DEFAULT_MEM_USE_KB = 100 |
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|
406 |
SERVER_DEFAULT_MEM_USE_KB = 500 |
461
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diff
changeset
|
407 |