plugins/backend/zypppkgmgr.py

   1 #!/usr/bin/python -tt
   2 #
   3 # Copyright (c) 2010, 2011 Intel, Inc.
   4 #
   5 # This program is free software; you can redistribute it and/or modify it
   6 # under the terms of the GNU General Public License as published by the Free
   7 # Software Foundation; version 2 of the License
   8 #
   9 # This program is distributed in the hope that it will be useful, but
  10 # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  11 # or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12 # for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License along
  15 # with this program; if not, write to the Free Software Foundation, Inc., 59
  16 # Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17
  18 import os
  19 import shutil
  20 import urlparse
  21 import rpm
  22 from mic.utils import runner, fs_related
  23
  24 import zypp
  25 if not hasattr(zypp, 'PoolQuery') or not hasattr(zypp.RepoManager, 'loadSolvFile'):
  26     raise ImportError("python-zypp in host system cannot support PoolQuery or loadSolvFile interface, "
  27                       "please update it to enhanced version which can be found in repo.meego.com/tools")
  28
  29 from mic import msger
  30 from mic.kickstart import ksparser
  31 from mic.utils import rpmmisc
  32 from mic.utils import misc
  33 from mic.utils.proxy import get_proxy_for
  34 from mic.utils.errors import CreatorError
  35 from mic.imager.baseimager import BaseImageCreator
  36
  37 class RepositoryStub:
  38     def __init__(self):
  39         self.name = None
  40         self.baseurl = []
  41         self.mirrorlist = None
  42         self.proxy = None
  43         self.proxy_username = None
  44         self.proxy_password = None
  45
  46         self.enabled = True
  47         self.autorefresh = True
  48         self.keeppackages = True
  49         self.priority = None
  50
  51 class RepoError(CreatorError):
  52     pass
  53
  54 class RpmError(CreatorError):
  55     pass
  56
  57 from mic.pluginbase import BackendPlugin
  58 class Zypp(BackendPlugin):
  59     name = 'zypp'
  60
  61     def __init__(self, target_arch, instroot, cachedir):
  62         self.cachedir = cachedir
  63         self.instroot  = instroot
  64         self.target_arch = target_arch
  65
  66         self.__pkgs_license = {}
  67         self.__pkgs_content = {}
  68         self.repos = []
  69         self.to_deselect = []
  70         self.localpkgs = {}
  71         self.repo_manager = None
  72         self.repo_manager_options = None
  73         self.Z = None
  74         self.ts = None
  75         self.probFilterFlags = []
  76         self.incpkgs = {}
  77         self.excpkgs = {}
  78
  79         self.has_prov_query = True
  80
  81     def doFileLogSetup(self, uid, logfile):
  82         # don't do the file log for the livecd as it can lead to open fds
  83         # being left and an inability to clean up after ourself
  84         pass
  85
  86     def closeRpmDB(self):
  87         pass
  88
  89     def close(self):
  90         if self.ts:
  91             self.ts.closeDB()
  92             self.ts = None
  93         self.closeRpmDB()
  94         if not os.path.exists("/etc/fedora-release") and not os.path.exists("/etc/meego-release"):
  95             for i in range(3, os.sysconf("SC_OPEN_MAX")):
  96                 try:
  97                     os.close(i)
  98                 except:
  99                     pass
 100
 101     def __del__(self):
 102         self.close()
 103
 104     def _cleanupRpmdbLocks(self, installroot):
 105         # cleans up temporary files left by bdb so that differing
 106         # versions of rpm don't cause problems
 107         import glob
 108         for f in glob.glob(installroot + "/var/lib/rpm/__db*"):
 109             os.unlink(f)
 110
 111     def setup(self, confpath=None, instroot=None):
 112         if not self.instroot:
 113             self.instroot = instroot
 114         self._cleanupRpmdbLocks(self.instroot)
 115
 116     def whatObsolete(self, pkg):
 117         query = zypp.PoolQuery()
 118         query.addKind(zypp.ResKind.package)
 119         query.addAttribute(zypp.SolvAttr.obsoletes, pkg)
 120         query.setMatchExact()
 121         for pi in query.queryResults(self.Z.pool()):
 122             return pi
 123         return None
 124
 125     def _splitPkgString(self, pkg):
 126         sp = pkg.rsplit(".",1)
 127         name = sp[0]
 128         arch = None
 129         if len(sp) == 2:
 130             arch = sp[1]
 131             sysarch = zypp.Arch(self.target_arch)
 132             if not zypp.Arch(arch).compatible_with (sysarch):
 133                 arch = None
 134                 name = ".".join(sp)
 135         return name, arch
 136
 137     def selectPackage(self, pkg):
 138         """ Select a given package or package pattern, can be specified with name.arch or name* or *name """
 139         if not self.Z:
 140             self.__initialize_zypp()
 141
 142         def markPoolItem(obs, pi):
 143             if obs == None:
 144                 pi.status().setToBeInstalled (zypp.ResStatus.USER)
 145             else:
 146                 obs.status().setToBeInstalled (zypp.ResStatus.USER)
 147
 148         found = False
 149         startx = pkg.startswith("*")
 150         endx = pkg.endswith("*")
 151         ispattern = startx or endx
 152         name, arch = self._splitPkgString(pkg)
 153
 154         q = zypp.PoolQuery()
 155         q.addKind(zypp.ResKind.package)
 156         if ispattern:
 157             if startx and not endx:
 158                 pattern = '%s$' % (pkg[1:])
 159             if endx and not startx:
 160                 pattern = '^%s' % (pkg[0:-1])
 161             if endx and startx:
 162                 pattern = '%s' % (pkg[1:-1])
 163             q.setMatchRegex()
 164             q.addAttribute(zypp.SolvAttr.name,pattern)
 165         elif arch:
 166             q.setMatchExact()
 167             q.addAttribute(zypp.SolvAttr.name,name)
 168         else:
 169             q.setMatchExact()
 170             q.addAttribute(zypp.SolvAttr.name,pkg)
 171
 172         for item in sorted(q.queryResults(self.Z.pool()), key=lambda item: str(item.edition()), reverse=True):
 173             if item.name() in self.excpkgs.keys() and self.excpkgs[item.name()] == item.repoInfo().name():
 174                 continue
 175             if item.name() in self.incpkgs.keys() and self.incpkgs[item.name()] != item.repoInfo().name():
 176                 continue
 177             found = True
 178             obspkg = self.whatObsolete(item.name())
 179             if arch:
 180                 if arch == str(item.arch()):
 181                     item.status().setToBeInstalled (zypp.ResStatus.USER)
 182             else:
 183                 markPoolItem(obspkg, item)
 184             if not ispattern:
 185                 break
 186         # Can't match using package name, then search from packge provides infomation
 187         if found == False and not ispattern:
 188             q.addAttribute(zypp.SolvAttr.provides, pkg)
 189             q.addAttribute(zypp.SolvAttr.name,'')
 190             for item in sorted(q.queryResults(self.Z.pool()), key=lambda item: str(item.edition()), reverse=True):
 191                 if item.name() in self.excpkgs.keys() and self.excpkgs[item.name()] == item.repoInfo().name():
 192                     continue
 193                 if item.name() in self.incpkgs.keys() and self.incpkgs[item.name()] != item.repoInfo().name():
 194                     continue
 195                 found = True
 196                 obspkg = self.whatObsolete(item.name())
 197                 markPoolItem(obspkg, item)
 198                 break
 199         if found:
 200             return None
 201         else:
 202             raise CreatorError("Unable to find package: %s" % (pkg,))
 203
 204     def inDeselectPackages(self, item):
 205         """check if specified pacakges are in the list of inDeselectPackages"""
 206         name = item.name()
 207         for pkg in self.to_deselect:
 208             startx = pkg.startswith("*")
 209             endx = pkg.endswith("*")
 210             ispattern = startx or endx
 211             pkgname, pkgarch = self._splitPkgString(pkg)
 212             if not ispattern:
 213                 if pkgarch:
 214                     if name == pkgname and str(item.arch()) == pkgarch:
 215                         return True;
 216                 else:
 217                     if name == pkgname:
 218                         return True;
 219             else:
 220                 if startx and name.endswith(pkg[1:]):
 221                         return True;
 222                 if endx and name.startswith(pkg[:-1]):
 223                         return True;
 224         return False;
 225
 226     def deselectPackage(self, pkg):
 227         """collect packages should not be installed"""
 228         self.to_deselect.append(pkg)
 229
 230     def selectGroup(self, grp, include = ksparser.GROUP_DEFAULT):
 231         if not self.Z:
 232             self.__initialize_zypp()
 233         found = False
 234         q=zypp.PoolQuery()
 235         q.addKind(zypp.ResKind.pattern)
 236         for item in q.queryResults(self.Z.pool()):
 237             summary = "%s" % item.summary()
 238             name = "%s" % item.name()
 239             if name == grp or summary == grp:
 240                 found = True
 241                 item.status().setToBeInstalled (zypp.ResStatus.USER)
 242                 break
 243
 244         if found:
 245             if include == ksparser.GROUP_REQUIRED:
 246                 map(lambda p: self.deselectPackage(p), grp.default_packages.keys())
 247             return None
 248         else:
 249             raise CreatorError("Unable to find pattern: %s" % (grp,))
 250
 251     def addRepository(self, name, url = None, mirrorlist = None, proxy = None,
 252                       proxy_username = None, proxy_password = None,
 253                       inc = None, exc = None, ssl_verify = True, cost=None,
 254                       priority=None):
 255         # TODO: Handle cost attribute for repos
 256         if not self.repo_manager:
 257             self.__initialize_repo_manager()
 258
 259         repo = RepositoryStub()
 260         repo.name = name
 261         repo.id = name
 262         repo.proxy = proxy
 263         repo.proxy_username = proxy_username
 264         repo.proxy_password = proxy_password
 265         repo.ssl_verify = ssl_verify
 266         repo.baseurl.append(url)
 267         if inc:
 268             for pkg in inc:
 269                 self.incpkgs[pkg] = name
 270         if exc:
 271             for pkg in exc:
 272                 self.excpkgs[pkg] = name
 273
 274         # check LICENSE files
 275         if not rpmmisc.checkRepositoryEULA(name, repo):
 276             msger.warning('skip repo:%s for failed EULA confirmation' % name)
 277             return None
 278
 279         if mirrorlist:
 280             repo.mirrorlist = mirrorlist
 281
 282         # Enable gpg check for verifying corrupt packages
 283         repo.gpgcheck = 1
 284         if priority:
 285             repo.priority = priority
 286         self.repos.append(repo)
 287
 288         try:
 289             repo_info = zypp.RepoInfo()
 290             repo_info.setAlias(repo.name)
 291             repo_info.setName(repo.name)
 292             repo_info.setEnabled(repo.enabled)
 293             repo_info.setAutorefresh(repo.autorefresh)
 294             repo_info.setKeepPackages(repo.keeppackages)
 295             baseurl = zypp.Url(repo.baseurl[0])
 296             if not ssl_verify:
 297                 baseurl.setQueryParam("ssl_verify", "no")
 298             if proxy:
 299                 (scheme, host, path, parm, query, frag) = urlparse.urlparse(proxy)
 300                 proxyinfo = host.split(":")
 301                 host = proxyinfo[0]
 302                 port = "80"
 303                 if len(proxyinfo) > 1:
 304                     port = proxyinfo[1]
 305                 if proxy.startswith("socks") and len(proxy.rsplit(':', 1)) == 2:
 306                     host = proxy.rsplit(':', 1)[0]
 307                     port = proxy.rsplit(':', 1)[1]
 308                 baseurl.setQueryParam ("proxy", host)
 309                 baseurl.setQueryParam ("proxyport", port)
 310             repo_info.addBaseUrl(baseurl)
 311             if repo.priority:
 312                 repo_info.setPriority(repo.priority)
 313             self.repo_manager.addRepository(repo_info)
 314             self.__build_repo_cache(name)
 315         except RuntimeError, e:
 316             raise CreatorError(str(e))
 317
 318         msger.verbose('repo: %s was added' % name)
 319         return repo
 320
 321     def installHasFile(self, file):
 322         return False
 323
 324     def runInstall(self, checksize = 0):
 325         os.environ["HOME"] = "/"
 326         self.buildTransaction()
 327
 328         todo = zypp.GetResolvablesToInsDel(self.Z.pool())
 329         installed_pkgs = todo._toInstall
 330         dlpkgs = []
 331         for item in installed_pkgs:
 332             if not zypp.isKindPattern(item) and not self.inDeselectPackages(item):
 333                 dlpkgs.append(item)
 334
 335         # record all pkg and the content
 336         localpkgs = self.localpkgs.keys()
 337         for pkg in dlpkgs:
 338             license = ''
 339             if pkg.name() in localpkgs:
 340                 hdr = rpmmisc.readRpmHeader(self.ts, self.localpkgs[pkg.name()])
 341                 pkg_long_name = "%s.%s %s-%s" % (hdr['name'], hdr['arch'], hdr['version'], hdr['release'])
 342                 license = hdr['license']
 343             else:
 344                 pkg_long_name = "%s.%s %s" % (pkg.name(), pkg.arch(), pkg.edition())
 345                 package = zypp.asKindPackage(pkg)
 346                 license = package.license()
 347             self.__pkgs_content[pkg_long_name] = {} #TBD: to get file list
 348             if license in self.__pkgs_license.keys():
 349                 self.__pkgs_license[license].append(pkg_long_name)
 350             else:
 351                 self.__pkgs_license[license] = [pkg_long_name]
 352
 353         total_count = len(dlpkgs)
 354         cached_count = 0
 355         download_total_size = sum(map(lambda x: int(x.downloadSize()), dlpkgs))
 356         localpkgs = self.localpkgs.keys()
 357         msger.info("Checking packages cache and packages integrity ...")
 358         for po in dlpkgs:
 359             """ Check if it is cached locally """
 360             if po.name() in localpkgs:
 361                 cached_count += 1
 362             else:
 363                 local = self.getLocalPkgPath(po)
 364                 if os.path.exists(local):
 365                     if self.checkPkg(local) != 0:
 366                         os.unlink(local)
 367                     else:
 368                         download_total_size -= int(po.downloadSize())
 369                         cached_count += 1
 370         cache_avail_size = misc.get_filesystem_avail(self.cachedir)
 371         if cache_avail_size < download_total_size:
 372             raise CreatorError("No enough space used for downloading.")
 373
 374         # record the total size of installed pkgs
 375         install_total_size = sum(map(lambda x: int(x.installSize()), dlpkgs))
 376         # check needed size before actually download and install
 377         if checksize and install_total_size > checksize:
 378             raise CreatorError("No enough space used for installing, please resize partition size in ks file")
 379
 380         download_count =  total_count - cached_count
 381         msger.info("%d packages to be installed, %d packages gotten from cache, %d packages to be downloaded" % (total_count, cached_count, download_count))
 382         try:
 383             if download_count > 0:
 384                 msger.info("Downloading packages ...")
 385             self.downloadPkgs(dlpkgs, download_count)
 386             self.installPkgs(dlpkgs)
 387
 388         except RepoError, e:
 389             raise CreatorError("Unable to download from repo : %s" % (e,))
 390         except RpmError, e:
 391             raise CreatorError("Unable to install: %s" % (e,))
 392
 393     def getAllContent(self):
 394         return self.__pkgs_content
 395
 396     def getPkgsLicense(self):
 397         return self.__pkgs_license
 398
 399     def __initialize_repo_manager(self):
 400         if self.repo_manager:
 401             return
 402
 403         """ Clean up repo metadata """
 404         shutil.rmtree(self.cachedir + "/etc", ignore_errors = True)
 405         shutil.rmtree(self.cachedir + "/solv", ignore_errors = True)
 406         shutil.rmtree(self.cachedir + "/raw", ignore_errors = True)
 407
 408         zypp.KeyRing.setDefaultAccept( zypp.KeyRing.ACCEPT_UNSIGNED_FILE
 409                                      | zypp.KeyRing.ACCEPT_VERIFICATION_FAILED
 410                                      | zypp.KeyRing.ACCEPT_UNKNOWNKEY
 411                                      | zypp.KeyRing.TRUST_KEY_TEMPORARILY
 412                                      )
 413         self.repo_manager_options = zypp.RepoManagerOptions(zypp.Pathname(self.instroot))
 414         self.repo_manager_options.knownReposPath = zypp.Pathname(self.cachedir + "/etc/zypp/repos.d")
 415         self.repo_manager_options.repoCachePath = zypp.Pathname(self.cachedir)
 416         self.repo_manager_options.repoRawCachePath = zypp.Pathname(self.cachedir + "/raw")
 417         self.repo_manager_options.repoSolvCachePath = zypp.Pathname(self.cachedir + "/solv")
 418         self.repo_manager_options.repoPackagesCachePath = zypp.Pathname(self.cachedir + "/packages")
 419
 420         self.repo_manager = zypp.RepoManager(self.repo_manager_options)
 421
 422     def __build_repo_cache(self, name):
 423         repo = self.repo_manager.getRepositoryInfo(name)
 424         if self.repo_manager.isCached(repo) or not repo.enabled():
 425             return
 426         self.repo_manager.buildCache(repo, zypp.RepoManager.BuildIfNeeded)
 427
 428     def __initialize_zypp(self):
 429         if self.Z:
 430             return
 431
 432         zconfig = zypp.ZConfig_instance()
 433
 434         """ Set system architecture """
 435         if self.target_arch:
 436             zconfig.setSystemArchitecture(zypp.Arch(self.target_arch))
 437
 438         msger.info("zypp architecture is <%s>" % zconfig.systemArchitecture())
 439
 440         """ repoPackagesCachePath is corrected by this """
 441         self.repo_manager = zypp.RepoManager(self.repo_manager_options)
 442         repos = self.repo_manager.knownRepositories()
 443         for repo in repos:
 444             if not repo.enabled():
 445                 continue
 446             self.repo_manager.loadFromCache(repo)
 447
 448         self.Z = zypp.ZYppFactory_instance().getZYpp()
 449         self.Z.initializeTarget(zypp.Pathname(self.instroot))
 450         self.Z.target().load()
 451
 452
 453     def buildTransaction(self):
 454         if not self.Z.resolver().resolvePool():
 455             msger.warning("Problem count: %d" % len(self.Z.resolver().problems()))
 456             for problem in self.Z.resolver().problems():
 457                 msger.warning("Problem: %s, %s" % (problem.description().decode("utf-8"), problem.details().decode("utf-8")))
 458
 459     def getLocalPkgPath(self, po):
 460         repoinfo = po.repoInfo()
 461         cacheroot = repoinfo.packagesPath()
 462         location= zypp.asKindPackage(po).location()
 463         rpmpath = str(location.filename())
 464         pkgpath = "%s/%s" % (cacheroot, rpmpath)
 465         return pkgpath
 466
 467     def installLocal(self, pkg, po=None, updateonly=False):
 468         if not self.ts:
 469             self.__initialize_transaction()
 470         solvfile = "%s/.solv" % (self.cachedir)
 471         rc, out = runner.runtool([fs_related.find_binary_path("rpms2solv"), pkg])
 472         if rc == 0:
 473             f = open(solvfile, "w+")
 474             f.write(out)
 475             f.close()
 476             warnmsg = self.repo_manager.loadSolvFile(solvfile , os.path.basename(pkg))
 477             if warnmsg:
 478                 msger.warning(warnmsg)
 479             os.unlink(solvfile)
 480         else:
 481             msger.warning('Can not get %s solv data.' % pkg)
 482         hdr = rpmmisc.readRpmHeader(self.ts, pkg)
 483         arch = zypp.Arch(hdr['arch'])
 484         sysarch = zypp.Arch(self.target_arch)
 485         if arch.compatible_with (sysarch):
 486             pkgname = hdr['name']
 487             self.localpkgs[pkgname] = pkg
 488             self.selectPackage(pkgname)
 489             msger.info("Marking %s to be installed" % (pkg))
 490         else:
 491             msger.warning ("Cannot add package %s to transaction. Not a compatible architecture: %s" % (pkg, hdr['arch']))
 492
 493     def downloadPkgs(self, package_objects, count):
 494         localpkgs = self.localpkgs.keys()
 495         progress_obj = rpmmisc.TextProgress(count)
 496         for po in package_objects:
 497             if po.name() in localpkgs:
 498                 continue
 499             filename = self.getLocalPkgPath(po)
 500             if os.path.exists(filename):
 501                 if self.checkPkg(filename) == 0:
 502                     continue
 503             dirn = os.path.dirname(filename)
 504             if not os.path.exists(dirn):
 505                 os.makedirs(dirn)
 506             baseurl = str(po.repoInfo().baseUrls()[0])
 507             index = baseurl.find("?")
 508             if index > -1:
 509                 baseurl = baseurl[:index]
 510             proxy = self.get_proxy(po.repoInfo())
 511             proxies = {}
 512             if proxy:
 513                 proxies = {str(proxy.split(":")[0]):str(proxy)}
 514
 515             location = zypp.asKindPackage(po).location()
 516             location = str(location.filename())
 517             if location.startswith("./"):
 518                 location = location[2:]
 519             url = baseurl + "/%s" % location
 520             try:
 521                 filename = rpmmisc.myurlgrab(url, filename, proxies, progress_obj)
 522             except CreatorError:
 523                 self.close()
 524                 raise
 525
 526     def installPkgs(self, package_objects):
 527         if not self.ts:
 528             self.__initialize_transaction()
 529
 530         """ Set filters """
 531         probfilter = 0
 532         for flag in self.probFilterFlags:
 533             probfilter |= flag
 534         self.ts.setProbFilter(probfilter)
 535
 536         localpkgs = self.localpkgs.keys()
 537         for po in package_objects:
 538             pkgname = po.name()
 539             if pkgname in localpkgs:
 540                 rpmpath = self.localpkgs[pkgname]
 541             else:
 542                 rpmpath = self.getLocalPkgPath(po)
 543             if not os.path.exists(rpmpath):
 544                 """ Maybe it is a local repo """
 545                 baseurl = str(po.repoInfo().baseUrls()[0])
 546                 baseurl = baseurl.strip()
 547                 location = zypp.asKindPackage(po).location()
 548                 location = str(location.filename())
 549                 if baseurl.startswith("file:/"):
 550                     rpmpath = baseurl[5:] + "/%s" % (location)
 551             if not os.path.exists(rpmpath):
 552                 raise RpmError("Error: %s doesn't exist" % rpmpath)
 553             h = rpmmisc.readRpmHeader(self.ts, rpmpath)
 554             self.ts.addInstall(h, rpmpath, 'u')
 555
 556         unresolved_dependencies = self.ts.check()
 557         if not unresolved_dependencies:
 558             self.ts.order()
 559             cb = rpmmisc.RPMInstallCallback(self.ts)
 560             installlogfile = "%s/__catched_stderr.buf" % (self.instroot)
 561             msger.enable_logstderr(installlogfile)
 562             errors = self.ts.run(cb.callback, '')
 563             if errors is None:
 564                 pass
 565             elif len(errors) == 0:
 566                 msger.warning('scriptlet or other non-fatal errors occurred during transaction.')
 567             else:
 568                 for e in errors:
 569                     msger.warning(e[0])
 570                 msger.error('Could not run transaction.')
 571             msger.disable_logstderr()
 572
 573             self.ts.closeDB()
 574             self.ts = None
 575         else:
 576             for pkg, need, needflags, sense, key in unresolved_dependencies:
 577                 package = '-'.join(pkg)
 578                 if needflags == rpm.RPMSENSE_LESS:
 579                     deppkg = ' < '.join(need)
 580                 elif needflags == rpm.RPMSENSE_EQUAL:
 581                     deppkg = ' = '.join(need)
 582                 elif needflags == rpm.RPMSENSE_GREATER:
 583                     deppkg = ' > '.join(need)
 584                 else:
 585                     deppkg = '-'.join(need)
 586
 587                 if sense == rpm.RPMDEP_SENSE_REQUIRES:
 588                     msger.warning ("[%s] Requires [%s], which is not provided" % (package, deppkg))
 589                 elif sense == rpm.RPMDEP_SENSE_CONFLICTS:
 590                     msger.warning ("[%s] Conflicts with [%s]" % (package, deppkg))
 591
 592             raise RepoError("Unresolved dependencies, transaction failed.")
 593
 594     def __initialize_transaction(self):
 595         if not self.ts:
 596             self.ts = rpm.TransactionSet(self.instroot)
 597             # Set to not verify DSA signatures.
 598             self.ts.setVSFlags(rpm._RPMVSF_NOSIGNATURES|rpm._RPMVSF_NODIGESTS)
 599
 600     def checkPkg(self, pkg):
 601         ret = 1
 602         if not os.path.exists(pkg):
 603             return ret
 604         ret = rpmmisc.checkRpmIntegrity('rpm', pkg)
 605         if ret != 0:
 606             msger.warning("package %s is damaged: %s" % (os.path.basename(pkg), pkg))
 607
 608         return ret
 609
 610     def _add_prob_flags(self, *flags):
 611         for flag in flags:
 612            if flag not in self.probFilterFlags:
 613                self.probFilterFlags.append(flag)
 614
 615     def get_proxy(self, repoinfo):
 616         proxy = None
 617         reponame = "%s" % repoinfo.name()
 618         for repo in self.repos:
 619             if repo.name == reponame:
 620                 proxy = repo.proxy
 621                 break
 622
 623         if proxy:
 624             return proxy
 625         else:
 626             repourl = str(repoinfo.baseUrls()[0])
 627             return get_proxy_for(repourl)