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.proxy import get_proxy_for
  33 from mic.utils.errors import CreatorError
  34 from mic.imager.baseimager import BaseImageCreator
  35
  36 class RepositoryStub:
  37     def __init__(self):
  38         self.name = None
  39         self.baseurl = []
  40         self.mirrorlist = None
  41         self.proxy = None
  42         self.proxy_username = None
  43         self.proxy_password = None
  44
  45         self.enabled = True
  46         self.autorefresh = True
  47         self.keeppackages = True
  48
  49 class RepoError(CreatorError):
  50     pass
  51
  52 class RpmError(CreatorError):
  53     pass
  54
  55 from mic.pluginbase import BackendPlugin
  56 class Zypp(BackendPlugin):
  57     name = 'zypp'
  58
  59     def __init__(self, creator = None):
  60         if not isinstance(creator, BaseImageCreator):
  61             raise CreatorError("Invalid argument: creator")
  62
  63         self.__pkgs_license = {}
  64         self.__pkgs_content = {}
  65         self.creator = creator
  66         self.repos = []
  67         self.to_deselect = []
  68         self.localpkgs = {}
  69         self.repo_manager = None
  70         self.repo_manager_options = None
  71         self.Z = None
  72         self.ts = None
  73         self.probFilterFlags = []
  74         self.incpkgs = {}
  75         self.excpkgs = {}
  76
  77         self.has_prov_query = True
  78
  79     def doFileLogSetup(self, uid, logfile):
  80         # don't do the file log for the livecd as it can lead to open fds
  81         # being left and an inability to clean up after ourself
  82         pass
  83
  84     def closeRpmDB(self):
  85         pass
  86
  87     def close(self):
  88         self.closeRpmDB()
  89         if not os.path.exists("/etc/fedora-release") and not os.path.exists("/etc/meego-release"):
  90             for i in range(3, os.sysconf("SC_OPEN_MAX")):
  91                 try:
  92                     os.close(i)
  93                 except:
  94                     pass
  95         if self.ts:
  96             self.ts.closeDB()
  97             self.ts = None
  98
  99     def __del__(self):
 100         self.close()
 101
 102     def _cleanupRpmdbLocks(self, installroot):
 103         # cleans up temporary files left by bdb so that differing
 104         # versions of rpm don't cause problems
 105         import glob
 106         for f in glob.glob(installroot + "/var/lib/rpm/__db*"):
 107             os.unlink(f)
 108
 109     def setup(self, confpath, installroot):
 110         self._cleanupRpmdbLocks(installroot)
 111         self.installroot = installroot
 112
 113     def whatObsolete(self, pkg):
 114         query = zypp.PoolQuery()
 115         query.addKind(zypp.ResKind.package)
 116         query.addAttribute(zypp.SolvAttr.obsoletes, pkg)
 117         query.setMatchExact()
 118         for pi in query.queryResults(self.Z.pool()):
 119             return pi
 120         return None
 121
 122     def _splitPkgString(self, pkg):
 123         sp = pkg.rsplit(".",1)
 124         name = sp[0]
 125         arch = None
 126         if len(sp) == 2:
 127             arch = sp[1]
 128             if self.creator.target_arch == None:
 129                 # TODO, get the default_arch from conf or detected from global settings
 130                 sysarch = zypp.Arch('i686')
 131             else:
 132                 sysarch = zypp.Arch(self.creator.target_arch)
 133             if not zypp.Arch(arch).compatible_with (sysarch):
 134                 arch = None
 135                 name = ".".join(sp)
 136         return name, arch
 137
 138     def selectPackage(self, pkg):
 139         """ Select a given package or package pattern, can be specified with name.arch or name* or *name """
 140         if not self.Z:
 141             self.__initialize_zypp()
 142
 143         def markPoolItem(obs, pi):
 144             if obs == None:
 145                 pi.status().setToBeInstalled (zypp.ResStatus.USER)
 146             else:
 147                 obs.status().setToBeInstalled (zypp.ResStatus.USER)
 148
 149         found = False
 150         startx = pkg.startswith("*")
 151         endx = pkg.endswith("*")
 152         ispattern = startx or endx
 153         name, arch = self._splitPkgString(pkg)
 154
 155         q = zypp.PoolQuery()
 156         q.addKind(zypp.ResKind.package)
 157         if ispattern:
 158             if startx and not endx:
 159                 pattern = '%s$' % (pkg[1:])
 160             if endx and not startx:
 161                 pattern = '^%s' % (pkg[0:-1])
 162             if endx and startx:
 163                 pattern = '%s' % (pkg[1:-1])
 164             q.setMatchRegex()
 165             q.addAttribute(zypp.SolvAttr.name,pattern)
 166         elif arch:
 167             q.setMatchExact()
 168             q.addAttribute(zypp.SolvAttr.name,name)
 169         else:
 170             q.setMatchExact()
 171             q.addAttribute(zypp.SolvAttr.name,pkg)
 172
 173         for item in sorted(q.queryResults(self.Z.pool()), key=lambda item: str(item.edition()), reverse=True):
 174             if item.name() in self.excpkgs.keys() and self.excpkgs[item.name()] == item.repoInfo().name():
 175                 continue
 176             if item.name() in self.incpkgs.keys() and self.incpkgs[item.name()] != item.repoInfo().name():
 177                 continue
 178             found = True
 179             obspkg = self.whatObsolete(item.name())
 180             if arch:
 181                 if arch == str(item.arch()):
 182                     item.status().setToBeInstalled (zypp.ResStatus.USER)
 183             else:
 184                 markPoolItem(obspkg, item)
 185             if not ispattern:
 186                 break
 187         # Can't match using package name, then search from packge provides infomation
 188         if found == False and not ispattern:
 189             q.addAttribute(zypp.SolvAttr.provides, pkg)
 190             q.addAttribute(zypp.SolvAttr.name,'')
 191             for item in sorted(q.queryResults(self.Z.pool()), key=lambda item: str(item.edition()), reverse=True):
 192                 if item.name() in self.excpkgs.keys() and self.excpkgs[item.name()] == item.repoInfo().name():
 193                     continue
 194                 if item.name() in self.incpkgs.keys() and self.incpkgs[item.name()] != item.repoInfo().name():
 195                     continue
 196                 found = True
 197                 obspkg = self.whatObsolete(item.name())
 198                 markPoolItem(obspkg, item)
 199                 break
 200         if found:
 201             return None
 202         else:
 203             raise CreatorError("Unable to find package: %s" % (pkg,))
 204
 205     def inDeselectPackages(self, item):
 206         """check if specified pacakges are in the list of inDeselectPackages"""
 207         name = item.name()
 208         for pkg in self.to_deselect:
 209             startx = pkg.startswith("*")
 210             endx = pkg.endswith("*")
 211             ispattern = startx or endx
 212             pkgname, pkgarch = self._splitPkgString(pkg)
 213             if not ispattern:
 214                 if pkgarch:
 215                     if name == pkgname and str(item.arch()) == pkgarch:
 216                         return True;
 217                 else:
 218                     if name == pkgname:
 219                         return True;
 220             else:
 221                 if startx and name.endswith(pkg[1:]):
 222                         return True;
 223                 if endx and name.startswith(pkg[:-1]):
 224                         return True;
 225         return False;
 226
 227     def deselectPackage(self, pkg):
 228         """collect packages should not be installed"""
 229         self.to_deselect.append(pkg)
 230
 231     def selectGroup(self, grp, include = ksparser.GROUP_DEFAULT):
 232         if not self.Z:
 233             self.__initialize_zypp()
 234         found = False
 235         q=zypp.PoolQuery()
 236         q.addKind(zypp.ResKind.pattern)
 237         for item in q.queryResults(self.Z.pool()):
 238             summary = "%s" % item.summary()
 239             name = "%s" % item.name()
 240             if name == grp or summary == grp:
 241                 found = True
 242                 item.status().setToBeInstalled (zypp.ResStatus.USER)
 243                 break
 244
 245         if found:
 246             if include == ksparser.GROUP_REQUIRED:
 247                 map(lambda p: self.deselectPackage(p), grp.default_packages.keys())
 248             return None
 249         else:
 250             raise CreatorError("Unable to find pattern: %s" % (grp,))
 251
 252     def addRepository(self, name, url = None, mirrorlist = None, proxy = None,
 253                       proxy_username = None, proxy_password = None,
 254                       inc = None, exc = None, ssl_verify = True):
 255         if not self.repo_manager:
 256             self.__initialize_repo_manager()
 257
 258         repo = RepositoryStub()
 259         repo.name = name
 260         repo.id = name
 261         repo.proxy = proxy
 262         repo.proxy_username = proxy_username
 263         repo.proxy_password = proxy_password
 264         repo.ssl_verify = ssl_verify
 265         repo.baseurl.append(url)
 266         if inc:
 267             for pkg in inc:
 268                 self.incpkgs[pkg] = name
 269         if exc:
 270             for pkg in exc:
 271                 self.excpkgs[pkg] = name
 272
 273         # check LICENSE files
 274         if not rpmmisc.checkRepositoryEULA(name, repo):
 275             msger.warning('skip repo:%s for failed EULA confirmation' % name)
 276             return None
 277
 278         if mirrorlist:
 279             repo.mirrorlist = mirrorlist
 280
 281         # Enable gpg check for verifying corrupt packages
 282         repo.gpgcheck = 1
 283         self.repos.append(repo)
 284
 285         try:
 286             repo_info = zypp.RepoInfo()
 287             repo_info.setAlias(repo.name)
 288             repo_info.setName(repo.name)
 289             repo_info.setEnabled(repo.enabled)
 290             repo_info.setAutorefresh(repo.autorefresh)
 291             repo_info.setKeepPackages(repo.keeppackages)
 292             baseurl = zypp.Url(repo.baseurl[0])
 293             if not ssl_verify:
 294                 baseurl.setQueryParam("ssl_verify", "no")
 295             if proxy:
 296                 (scheme, host, path, parm, query, frag) = urlparse.urlparse(proxy)
 297                 proxyinfo = host.split(":")
 298                 baseurl.setQueryParam ("proxy", proxyinfo[0])
 299                 port = "80"
 300                 if len(proxyinfo) > 1:
 301                     port = proxyinfo[1]
 302                 baseurl.setQueryParam ("proxyport", port)
 303             repo_info.addBaseUrl(baseurl)
 304             self.repo_manager.addRepository(repo_info)
 305             self.__build_repo_cache(name)
 306         except RuntimeError, e:
 307             raise CreatorError(str(e))
 308
 309         msger.verbose('repo: %s was added' % name)
 310         return repo
 311
 312     def installHasFile(self, file):
 313         return False
 314
 315     def runInstall(self, checksize = 0):
 316         os.environ["HOME"] = "/"
 317         self.buildTransaction()
 318
 319         todo = zypp.GetResolvablesToInsDel(self.Z.pool())
 320         installed_pkgs = todo._toInstall
 321         dlpkgs = []
 322         for item in installed_pkgs:
 323             if not zypp.isKindPattern(item) and not self.inDeselectPackages(item):
 324                 dlpkgs.append(item)
 325
 326         # record the total size of installed pkgs
 327         pkgs_total_size = sum(map(lambda x: int(x.installSize()), dlpkgs))
 328
 329         # check needed size before actually download and install
 330         if checksize and pkgs_total_size > checksize:
 331             raise CreatorError("Size of specified root partition in kickstart file is too small to install all selected packages.")
 332
 333         # record all pkg and the content
 334         localpkgs = self.localpkgs.keys()
 335         for pkg in dlpkgs:
 336             license = ''
 337             if pkg.name() in localpkgs:
 338                 hdr = rpmmisc.readRpmHeader(self.ts, self.localpkgs[pkg.name()])
 339                 pkg_long_name = "%s-%s-%s.%s.rpm" % (hdr['name'], hdr['version'], hdr['release'], hdr['arch'])
 340                 license = hdr['license']
 341             else:
 342                 pkg_long_name = "%s-%s.%s.rpm" % (pkg.name(), pkg.edition(), pkg.arch())
 343                 package = zypp.asKindPackage(pkg)
 344                 license = package.license()
 345             self.__pkgs_content[pkg_long_name] = {} #TBD: to get file list
 346             if license in self.__pkgs_license.keys():
 347                 self.__pkgs_license[license].append(pkg_long_name)
 348             else:
 349                 self.__pkgs_license[license] = [pkg_long_name]
 350
 351         total_count = len(dlpkgs)
 352         cached_count = 0
 353         localpkgs = self.localpkgs.keys()
 354         msger.info("Checking packages cache and packages integrity ...")
 355         for po in dlpkgs:
 356             """ Check if it is cached locally """
 357             if po.name() in localpkgs:
 358                 cached_count += 1
 359             else:
 360                 local = self.getLocalPkgPath(po)
 361                 if os.path.exists(local):
 362                     if self.checkPkg(local) != 0:
 363                         os.unlink(local)
 364                     else:
 365                         cached_count += 1
 366         download_count =  total_count - cached_count
 367         msger.info("%d packages to be installed, %d packages gotten from cache, %d packages to be downloaded" % (total_count, cached_count, download_count))
 368         try:
 369             if download_count > 0:
 370                 msger.info("Downloading packages ...")
 371             self.downloadPkgs(dlpkgs, download_count)
 372             self.installPkgs(dlpkgs)
 373
 374         except RepoError, e:
 375             raise CreatorError("Unable to download from repo : %s" % (e,))
 376         except RpmError, e:
 377             raise CreatorError("Unable to install: %s" % (e,))
 378
 379     def getAllContent(self):
 380         return self.__pkgs_content
 381
 382     def getPkgsLicense(self):
 383         return self.__pkgs_license
 384
 385     def __initialize_repo_manager(self):
 386         if self.repo_manager:
 387             return
 388
 389         """ Clean up repo metadata """
 390         shutil.rmtree(self.creator.cachedir + "/etc", ignore_errors = True)
 391         shutil.rmtree(self.creator.cachedir + "/solv", ignore_errors = True)
 392         shutil.rmtree(self.creator.cachedir + "/raw", ignore_errors = True)
 393
 394         zypp.KeyRing.setDefaultAccept( zypp.KeyRing.ACCEPT_UNSIGNED_FILE
 395                                      | zypp.KeyRing.ACCEPT_VERIFICATION_FAILED
 396                                      | zypp.KeyRing.ACCEPT_UNKNOWNKEY
 397                                      | zypp.KeyRing.TRUST_KEY_TEMPORARILY
 398                                      )
 399         self.repo_manager_options = zypp.RepoManagerOptions(zypp.Pathname(self.creator._instroot))
 400         self.repo_manager_options.knownReposPath = zypp.Pathname(self.creator.cachedir + "/etc/zypp/repos.d")
 401         self.repo_manager_options.repoCachePath = zypp.Pathname(self.creator.cachedir)
 402         self.repo_manager_options.repoRawCachePath = zypp.Pathname(self.creator.cachedir + "/raw")
 403         self.repo_manager_options.repoSolvCachePath = zypp.Pathname(self.creator.cachedir + "/solv")
 404         self.repo_manager_options.repoPackagesCachePath = zypp.Pathname(self.creator.cachedir + "/packages")
 405
 406         self.repo_manager = zypp.RepoManager(self.repo_manager_options)
 407
 408     def __build_repo_cache(self, name):
 409         repo = self.repo_manager.getRepositoryInfo(name)
 410         if self.repo_manager.isCached(repo) or not repo.enabled():
 411             return
 412         self.repo_manager.buildCache(repo, zypp.RepoManager.BuildIfNeeded)
 413
 414     def __initialize_zypp(self):
 415         if self.Z:
 416             return
 417
 418         zconfig = zypp.ZConfig_instance()
 419
 420         """ Set system architecture """
 421         if self.creator.target_arch:
 422             zconfig.setSystemArchitecture(zypp.Arch(self.creator.target_arch))
 423
 424         msger.info("zypp architecture is <%s>" % zconfig.systemArchitecture())
 425
 426         """ repoPackagesCachePath is corrected by this """
 427         self.repo_manager = zypp.RepoManager(self.repo_manager_options)
 428         repos = self.repo_manager.knownRepositories()
 429         for repo in repos:
 430             if not repo.enabled():
 431                 continue
 432             self.repo_manager.loadFromCache(repo)
 433
 434         self.Z = zypp.ZYppFactory_instance().getZYpp()
 435         self.Z.initializeTarget(zypp.Pathname(self.creator._instroot))
 436         self.Z.target().load()
 437
 438
 439     def buildTransaction(self):
 440         if not self.Z.resolver().resolvePool():
 441             msger.warning("Problem count: %d" % len(self.Z.resolver().problems()))
 442             for problem in self.Z.resolver().problems():
 443                 msger.warning("Problem: %s, %s" % (problem.description().decode("utf-8"), problem.details().decode("utf-8")))
 444
 445     def getLocalPkgPath(self, po):
 446         repoinfo = po.repoInfo()
 447         cacheroot = repoinfo.packagesPath()
 448         location= zypp.asKindPackage(po).location()
 449         rpmpath = str(location.filename())
 450         pkgpath = "%s/%s" % (cacheroot, rpmpath)
 451         return pkgpath
 452
 453     def installLocal(self, pkg, po=None, updateonly=False):
 454         if not self.ts:
 455             self.__initialize_transaction()
 456         solvfile = "%s/.solv" % (self.creator.cachedir)
 457         rc, out = runner.runtool([fs_related.find_binary_path("rpms2solv"), pkg])
 458         if rc == 0:
 459             f = open(solvfile, "w+")
 460             f.write(out)
 461             f.close()
 462             warnmsg = self.repo_manager.loadSolvFile(solvfile , os.path.basename(pkg))
 463             if warnmsg:
 464                 msger.warning(warnmsg)
 465             os.unlink(solvfile)
 466         else:
 467             msger.warning('Can not get %s solv data.' % pkg)
 468         hdr = rpmmisc.readRpmHeader(self.ts, pkg)
 469         arch = zypp.Arch(hdr['arch'])
 470         if self.creator.target_arch == None:
 471             # TODO, get the default_arch from conf or detected from global settings
 472             sysarch = zypp.Arch('i686')
 473         else:
 474             sysarch = zypp.Arch(self.creator.target_arch)
 475         if arch.compatible_with (sysarch):
 476             pkgname = hdr['name']
 477             self.localpkgs[pkgname] = pkg
 478             self.selectPackage(pkgname)
 479             msger.info("Marking %s to be installed" % (pkg))
 480         else:
 481             msger.warning ("Cannot add package %s to transaction. Not a compatible architecture: %s" % (pkg, hdr['arch']))
 482
 483     def downloadPkgs(self, package_objects, count):
 484         localpkgs = self.localpkgs.keys()
 485         progress_obj = rpmmisc.TextProgress(count)
 486         for po in package_objects:
 487             if po.name() in localpkgs:
 488                 continue
 489             filename = self.getLocalPkgPath(po)
 490             if os.path.exists(filename):
 491                 if self.checkPkg(filename) == 0:
 492                     continue
 493             dirn = os.path.dirname(filename)
 494             if not os.path.exists(dirn):
 495                 os.makedirs(dirn)
 496             baseurl = str(po.repoInfo().baseUrls()[0])
 497             index = baseurl.find("?")
 498             if index > -1:
 499                 baseurl = baseurl[:index]
 500             proxy = self.get_proxy(po.repoInfo())
 501             proxies = {}
 502             if proxy:
 503                 proxies = {str(proxy.split(":")[0]):str(proxy)}
 504
 505             location = zypp.asKindPackage(po).location()
 506             location = str(location.filename())
 507             if location.startswith("./"):
 508                 location = location[2:]
 509             url = baseurl + "/%s" % location
 510             try:
 511                 filename = rpmmisc.myurlgrab(url, filename, proxies, progress_obj)
 512             except CreatorError:
 513                 self.close()
 514                 raise
 515
 516     def installPkgs(self, package_objects):
 517         if not self.ts:
 518             self.__initialize_transaction()
 519
 520         """ Set filters """
 521         probfilter = 0
 522         for flag in self.probFilterFlags:
 523             probfilter |= flag
 524         self.ts.setProbFilter(probfilter)
 525
 526         localpkgs = self.localpkgs.keys()
 527         for po in package_objects:
 528             pkgname = po.name()
 529             if pkgname in localpkgs:
 530                 rpmpath = self.localpkgs[pkgname]
 531             else:
 532                 rpmpath = self.getLocalPkgPath(po)
 533             if not os.path.exists(rpmpath):
 534                 """ Maybe it is a local repo """
 535                 baseurl = str(po.repoInfo().baseUrls()[0])
 536                 baseurl = baseurl.strip()
 537                 location = zypp.asKindPackage(po).location()
 538                 location = str(location.filename())
 539                 if baseurl.startswith("file:/"):
 540                     rpmpath = baseurl[5:] + "/%s" % (location)
 541             if not os.path.exists(rpmpath):
 542                 raise RpmError("Error: %s doesn't exist" % rpmpath)
 543             h = rpmmisc.readRpmHeader(self.ts, rpmpath)
 544             self.ts.addInstall(h, rpmpath, 'u')
 545
 546         unresolved_dependencies = self.ts.check()
 547         if not unresolved_dependencies:
 548             self.ts.order()
 549             cb = rpmmisc.RPMInstallCallback(self.ts)
 550             installlogfile = "%s/__catched_stderr.buf" % (self.creator._instroot)
 551             msger.enable_logstderr(installlogfile)
 552             errors = self.ts.run(cb.callback, '')
 553             if errors is None:
 554                 pass
 555             elif len(errors) == 0:
 556                 msger.warning('scriptlet or other non-fatal errors occurred during transaction.')
 557             else:
 558                 for e in errors:
 559                     msger.warning(e[0])
 560                 msger.error('Could not run transaction.')
 561             msger.disable_logstderr()
 562
 563             self.ts.closeDB()
 564             self.ts = None
 565         else:
 566             for pkg, need, needflags, sense, key in unresolved_dependencies:
 567                 package = '-'.join(pkg)
 568                 if needflags == rpm.RPMSENSE_LESS:
 569                     deppkg = ' < '.join(need)
 570                 elif needflags == rpm.RPMSENSE_EQUAL:
 571                     deppkg = ' = '.join(need)
 572                 elif needflags == rpm.RPMSENSE_GREATER:
 573                     deppkg = ' > '.join(need)
 574                 else:
 575                     deppkg = '-'.join(need)
 576
 577                 if sense == rpm.RPMDEP_SENSE_REQUIRES:
 578                     msger.warning ("[%s] Requires [%s], which is not provided" % (package, deppkg))
 579                 elif sense == rpm.RPMDEP_SENSE_CONFLICTS:
 580                     msger.warning ("[%s] Conflicts with [%s]" % (package, deppkg))
 581
 582             raise RepoError("Unresolved dependencies, transaction failed.")
 583
 584     def __initialize_transaction(self):
 585         if not self.ts:
 586             self.ts = rpm.TransactionSet(self.creator._instroot)
 587             # Set to not verify DSA signatures.
 588             self.ts.setVSFlags(rpm._RPMVSF_NOSIGNATURES|rpm._RPMVSF_NODIGESTS)
 589
 590     def checkPkg(self, pkg):
 591         ret = 1
 592         if not os.path.exists(pkg):
 593             return ret
 594         ret = rpmmisc.checkRpmIntegrity('rpm', pkg)
 595         if ret != 0:
 596             msger.warning("package %s is damaged: %s" % (os.path.basename(pkg), pkg))
 597
 598         return ret
 599
 600     def _add_prob_flags(self, *flags):
 601         for flag in flags:
 602            if flag not in self.probFilterFlags:
 603                self.probFilterFlags.append(flag)
 604
 605     def get_proxy(self, repoinfo):
 606         proxy = None
 607         reponame = "%s" % repoinfo.name()
 608         for repo in self.repos:
 609             if repo.name == reponame:
 610                 proxy = repo.proxy
 611                 break
 612
 613         if proxy:
 614             return proxy
 615         else:
 616             repourl = str(repoinfo.baseUrls()[0])
 617             return get_proxy_for(repourl)