+++ /dev/null
-
-"""Manage the multiple mirrors that may be requested.
-
-@var aptpkg_dir: the name of the directory to use for mirror files
-"""
-
-from urlparse import urlparse
-import os
-
-from twisted.python import log
-from twisted.python.filepath import FilePath
-from twisted.internet import defer
-from twisted.trial import unittest
-from twisted.web2.http import splitHostPort
-
-from AptPackages import AptPackages
-
-aptpkg_dir='apt-packages'
-
-class MirrorError(Exception):
- """Exception raised when there's a problem with the mirror."""
-
-class MirrorManager:
- """Manages all requests for mirror information.
-
- @type cache_dir: L{twisted.python.filepath.FilePath}
- @ivar cache_dir: the directory to use for storing all files
- @type unload_delay: C{int}
- @ivar unload_delay: the time to wait before unloading the apt cache
- @type apt_caches: C{dictionary}
- @ivar apt_caches: the avaliable mirrors
- """
-
- def __init__(self, cache_dir, unload_delay):
- self.cache_dir = cache_dir
- self.unload_delay = unload_delay
- self.apt_caches = {}
-
- def extractPath(self, url):
- """Break the full URI down into the site, base directory and path.
-
- Site is the host and port of the mirror. Base directory is the
- directory to the mirror location (usually just '/debian'). Path is
- the remaining path to get to the file.
-
- E.g. http://ftp.debian.org/debian/dists/sid/binary-i386/Packages.bz2
- would return ('ftp.debian.org:80', '/debian',
- '/dists/sid/binary-i386/Packages.bz2').
-
- @param url: the URI of the file's location on the mirror
- @rtype: (C{string}, C{string}, C{string})
- @return: the site, base directory and path to the file
- """
- # Extract the host and port
- parsed = urlparse(url)
- host, port = splitHostPort(parsed[0], parsed[1])
- site = host + ":" + str(port)
- path = parsed[2]
-
- # Try to find the base directory (most can be found this way)
- i = max(path.rfind('/dists/'), path.rfind('/pool/'))
- if i >= 0:
- baseDir = path[:i]
- path = path[i:]
- else:
- # Uh oh, this is not good
- log.msg("Couldn't find a good base directory for path: %s" % (site + path))
-
- # Try to find an existing cache that starts with this one
- # (fallback to using an empty base directory)
- baseDir = ''
- if site in self.apt_caches:
- longest_match = 0
- for base in self.apt_caches[site]:
- base_match = ''
- for dirs in path.split('/'):
- if base.startswith(base_match + '/' + dirs):
- base_match += '/' + dirs
- else:
- break
- if len(base_match) > longest_match:
- longest_match = len(base_match)
- baseDir = base_match
- log.msg("Settled on baseDir: %s" % baseDir)
-
- return site, baseDir, path
-
- def init(self, site, baseDir):
- """Make sure an L{AptPackages} exists for this mirror."""
- if site not in self.apt_caches:
- self.apt_caches[site] = {}
-
- if baseDir not in self.apt_caches[site]:
- site_cache = self.cache_dir.child(aptpkg_dir).child('mirrors').child(site + baseDir.replace('/', '_'))
- site_cache.makedirs
- self.apt_caches[site][baseDir] = AptPackages(site_cache, self.unload_delay)
-
- def updatedFile(self, url, file_path):
- """A file in the mirror has changed or been added.
-
- @see: L{AptPackages.PackageFileList.update_file}
- """
- site, baseDir, path = self.extractPath(url)
- self.init(site, baseDir)
- self.apt_caches[site][baseDir].file_updated(path, file_path)
-
- def findHash(self, url):
- """Find the hash for a given url.
-
- @param url: the URI of the file's location on the mirror
- @rtype: L{twisted.internet.defer.Deferred}
- @return: a deferred that will fire with the returned L{Hash.HashObject}
- """
- site, baseDir, path = self.extractPath(url)
- if site in self.apt_caches and baseDir in self.apt_caches[site]:
- return self.apt_caches[site][baseDir].findHash(path)
- d = defer.Deferred()
- d.errback(MirrorError("Site Not Found"))
- return d
-
- def cleanup(self):
- for site in self.apt_caches.keys():
- for baseDir in self.apt_caches[site].keys():
- self.apt_caches[site][baseDir].cleanup()
- del self.apt_caches[site][baseDir]
- del self.apt_caches[site]
-
-class TestMirrorManager(unittest.TestCase):
- """Unit tests for the mirror manager."""
-
- timeout = 20
- pending_calls = []
- client = None
-
- def setUp(self):
- self.client = MirrorManager(FilePath('/tmp/.apt-p2p'), 300)
-
- def test_extractPath(self):
- """Test extracting the site and base directory from various mirrors."""
- site, baseDir, path = self.client.extractPath('http://ftp.us.debian.org/debian/dists/unstable/Release')
- self.failUnless(site == "ftp.us.debian.org:80", "no match: %s" % site)
- self.failUnless(baseDir == "/debian", "no match: %s" % baseDir)
- self.failUnless(path == "/dists/unstable/Release", "no match: %s" % path)
-
- site, baseDir, path = self.client.extractPath('http://ftp.us.debian.org:16999/debian/pool/d/dpkg/dpkg_1.2.1-1.tar.gz')
- self.failUnless(site == "ftp.us.debian.org:16999", "no match: %s" % site)
- self.failUnless(baseDir == "/debian", "no match: %s" % baseDir)
- self.failUnless(path == "/pool/d/dpkg/dpkg_1.2.1-1.tar.gz", "no match: %s" % path)
-
- site, baseDir, path = self.client.extractPath('http://debian.camrdale.org/dists/unstable/Release')
- self.failUnless(site == "debian.camrdale.org:80", "no match: %s" % site)
- self.failUnless(baseDir == "", "no match: %s" % baseDir)
- self.failUnless(path == "/dists/unstable/Release", "no match: %s" % path)
-
- def verifyHash(self, found_hash, path, true_hash):
- self.failUnless(found_hash.hexexpected() == true_hash,
- "%s hashes don't match: %s != %s" % (path, found_hash.hexexpected(), true_hash))
-
- def test_findHash(self):
- """Tests finding the hash of an index file, binary package, source package, and another index file."""
- # Find the largest index files that are for 'main'
- self.packagesFile = os.popen('ls -Sr /var/lib/apt/lists/ | grep -E "_main_.*Packages$" | tail -n 1').read().rstrip('\n')
- self.sourcesFile = os.popen('ls -Sr /var/lib/apt/lists/ | grep -E "_main_.*Sources$" | tail -n 1').read().rstrip('\n')
-
- # Find the Release file corresponding to the found Packages file
- for f in os.walk('/var/lib/apt/lists').next()[2]:
- if f[-7:] == "Release" and self.packagesFile.startswith(f[:-7]):
- self.releaseFile = f
- break
-
- # Add all the found files to the mirror
- self.client.updatedFile('http://' + self.releaseFile.replace('_','/'),
- FilePath('/var/lib/apt/lists/' + self.releaseFile))
- self.client.updatedFile('http://' + self.releaseFile[:self.releaseFile.find('_dists_')+1].replace('_','/') +
- self.packagesFile[self.packagesFile.find('_dists_')+1:].replace('_','/'),
- FilePath('/var/lib/apt/lists/' + self.packagesFile))
- self.client.updatedFile('http://' + self.releaseFile[:self.releaseFile.find('_dists_')+1].replace('_','/') +
- self.sourcesFile[self.sourcesFile.find('_dists_')+1:].replace('_','/'),
- FilePath('/var/lib/apt/lists/' + self.sourcesFile))
-
- lastDefer = defer.Deferred()
-
- # Lookup a Packages.bz2 file
- idx_hash = os.popen('grep -A 3000 -E "^SHA1:" ' +
- '/var/lib/apt/lists/' + self.releaseFile +
- ' | grep -E " main/binary-i386/Packages.bz2$"'
- ' | head -n 1 | cut -d\ -f 2').read().rstrip('\n')
- idx_path = 'http://' + self.releaseFile.replace('_','/')[:-7] + 'main/binary-i386/Packages.bz2'
-
- d = self.client.findHash(idx_path)
- d.addCallback(self.verifyHash, idx_path, idx_hash)
-
- # Lookup the binary 'dpkg' package
- pkg_hash = os.popen('grep -A 30 -E "^Package: dpkg$" ' +
- '/var/lib/apt/lists/' + self.packagesFile +
- ' | grep -E "^SHA1:" | head -n 1' +
- ' | cut -d\ -f 2').read().rstrip('\n')
- pkg_path = 'http://' + self.releaseFile[:self.releaseFile.find('_dists_')+1].replace('_','/') + \
- os.popen('grep -A 30 -E "^Package: dpkg$" ' +
- '/var/lib/apt/lists/' + self.packagesFile +
- ' | grep -E "^Filename:" | head -n 1' +
- ' | cut -d\ -f 2').read().rstrip('\n')
-
- d = self.client.findHash(pkg_path)
- d.addCallback(self.verifyHash, pkg_path, pkg_hash)
-
- # Lookup the source 'dpkg' package
- src_dir = os.popen('grep -A 30 -E "^Package: dpkg$" ' +
- '/var/lib/apt/lists/' + self.sourcesFile +
- ' | grep -E "^Directory:" | head -n 1' +
- ' | cut -d\ -f 2').read().rstrip('\n')
- src_hashes = os.popen('grep -A 20 -E "^Package: dpkg$" ' +
- '/var/lib/apt/lists/' + self.sourcesFile +
- ' | grep -A 4 -E "^Files:" | grep -E "^ " ' +
- ' | cut -d\ -f 2').read().split('\n')[:-1]
- src_paths = os.popen('grep -A 20 -E "^Package: dpkg$" ' +
- '/var/lib/apt/lists/' + self.sourcesFile +
- ' | grep -A 4 -E "^Files:" | grep -E "^ " ' +
- ' | cut -d\ -f 4').read().split('\n')[:-1]
-
- for i in range(len(src_hashes)):
- src_path = 'http://' + self.releaseFile[:self.releaseFile.find('_dists_')+1].replace('_','/') + src_dir + '/' + src_paths[i]
- d = self.client.findHash(src_path)
- d.addCallback(self.verifyHash, src_path, src_hashes[i])
-
- # Lookup a Sources.bz2 file
- idx_hash = os.popen('grep -A 3000 -E "^SHA1:" ' +
- '/var/lib/apt/lists/' + self.releaseFile +
- ' | grep -E " main/source/Sources.bz2$"'
- ' | head -n 1 | cut -d\ -f 2').read().rstrip('\n')
- idx_path = 'http://' + self.releaseFile.replace('_','/')[:-7] + 'main/source/Sources.bz2'
-
- d = self.client.findHash(idx_path)
- d.addCallback(self.verifyHash, idx_path, idx_hash)
-
- d.addBoth(lastDefer.callback)
- return lastDefer
-
- def tearDown(self):
- for p in self.pending_calls:
- if p.active():
- p.cancel()
- self.client.cleanup()
- self.client = None
-
\ No newline at end of file
projects / quix0rs-apt-p2p.git / blobdiff