pym/portage/package/ebuild/fetch.py

   1 # Copyright 2010-2013 Gentoo Foundation
   2 # Distributed under the terms of the GNU General Public License v2
   3
   4 from __future__ import print_function
   5
   6 __all__ = ['fetch']
   7
   8 import errno
   9 import io
  10 import logging
  11 import random
  12 import re
  13 import stat
  14 import sys
  15 import tempfile
  16
  17 try:
  18         from urllib.parse import urlparse, urlunparse
  19 except ImportError:
  20         from urlparse import urlparse, urlunparse
  21
  22 import portage
  23 portage.proxy.lazyimport.lazyimport(globals(),
  24         'portage.package.ebuild.config:check_config_instance,config',
  25         'portage.package.ebuild.doebuild:doebuild_environment,' + \
  26                 '_doebuild_spawn',
  27         'portage.package.ebuild.prepare_build_dirs:prepare_build_dirs',
  28 )
  29
  30 from portage import OrderedDict, os, selinux, shutil, _encodings, \
  31         _shell_quote, _unicode_encode
  32 from portage.checksum import (hashfunc_map, perform_md5, verify_all,
  33         _filter_unaccelarated_hashes, _hash_filter, _apply_hash_filter)
  34 from portage.const import BASH_BINARY, CUSTOM_MIRRORS_FILE, \
  35         GLOBAL_CONFIG_PATH
  36 from portage.data import portage_gid, portage_uid, secpass, userpriv_groups
  37 from portage.exception import FileNotFound, OperationNotPermitted, \
  38         PortageException, TryAgain
  39 from portage.localization import _
  40 from portage.locks import lockfile, unlockfile
  41 from portage.output import colorize, EOutput
  42 from portage.util import apply_recursive_permissions, \
  43         apply_secpass_permissions, ensure_dirs, grabdict, shlex_split, \
  44         varexpand, writemsg, writemsg_level, writemsg_stdout
  45 from portage.process import spawn
  46
  47 _userpriv_spawn_kwargs = (
  48         ("uid",    portage_uid),
  49         ("gid",    portage_gid),
  50         ("groups", userpriv_groups),
  51         ("umask",  0o02),
  52 )
  53
  54 def _hide_url_passwd(url):
  55         return re.sub(r'//(.+):.+@(.+)', r'//\1:*password*@\2', url)
  56
  57 def _spawn_fetch(settings, args, **kwargs):
  58         """
  59         Spawn a process with appropriate settings for fetching, including
  60         userfetch and selinux support.
  61         """
  62
  63         global _userpriv_spawn_kwargs
  64
  65         # Redirect all output to stdout since some fetchers like
  66         # wget pollute stderr (if portage detects a problem then it
  67         # can send it's own message to stderr).
  68         if "fd_pipes" not in kwargs:
  69
  70                 kwargs["fd_pipes"] = {
  71                         0 : portage._get_stdin().fileno(),
  72                         1 : sys.__stdout__.fileno(),
  73                         2 : sys.__stdout__.fileno(),
  74                 }
  75
  76         if "userfetch" in settings.features and \
  77                 os.getuid() == 0 and portage_gid and portage_uid and \
  78                 hasattr(os, "setgroups"):
  79                 kwargs.update(_userpriv_spawn_kwargs)
  80
  81         spawn_func = spawn
  82
  83         if settings.selinux_enabled():
  84                 spawn_func = selinux.spawn_wrapper(spawn_func,
  85                         settings["PORTAGE_FETCH_T"])
  86
  87                 # bash is an allowed entrypoint, while most binaries are not
  88                 if args[0] != BASH_BINARY:
  89                         args = [BASH_BINARY, "-c", "exec \"$@\"", args[0]] + args
  90
  91         # Ensure that EBUILD_PHASE is set to fetch, so that config.environ()
  92         # does not filter the calling environment (which may contain needed
  93         # proxy variables, as in bug #315421).
  94         phase_backup = settings.get('EBUILD_PHASE')
  95         settings['EBUILD_PHASE'] = 'fetch'
  96         try:
  97                 rval = spawn_func(args, env=settings.environ(), **kwargs)
  98         finally:
  99                 if phase_backup is None:
 100                         settings.pop('EBUILD_PHASE', None)
 101                 else:
 102                         settings['EBUILD_PHASE'] = phase_backup
 103
 104         return rval
 105
 106 _userpriv_test_write_file_cache = {}
 107 _userpriv_test_write_cmd_script = ">> %(file_path)s 2>/dev/null ; rval=$? ; " + \
 108         "rm -f  %(file_path)s ; exit $rval"
 109
 110 def _userpriv_test_write_file(settings, file_path):
 111         """
 112         Drop privileges and try to open a file for writing. The file may or
 113         may not exist, and the parent directory is assumed to exist. The file
 114         is removed before returning.
 115
 116         @param settings: A config instance which is passed to _spawn_fetch()
 117         @param file_path: A file path to open and write.
 118         @return: True if write succeeds, False otherwise.
 119         """
 120
 121         global _userpriv_test_write_file_cache, _userpriv_test_write_cmd_script
 122         rval = _userpriv_test_write_file_cache.get(file_path)
 123         if rval is not None:
 124                 return rval
 125
 126         args = [BASH_BINARY, "-c", _userpriv_test_write_cmd_script % \
 127                 {"file_path" : _shell_quote(file_path)}]
 128
 129         returncode = _spawn_fetch(settings, args)
 130
 131         rval = returncode == os.EX_OK
 132         _userpriv_test_write_file_cache[file_path] = rval
 133         return rval
 134
 135 def _checksum_failure_temp_file(distdir, basename):
 136         """
 137         First try to find a duplicate temp file with the same checksum and return
 138         that filename if available. Otherwise, use mkstemp to create a new unique
 139         filename._checksum_failure_.$RANDOM, rename the given file, and return the
 140         new filename. In any case, filename will be renamed or removed before this
 141         function returns a temp filename.
 142         """
 143
 144         filename = os.path.join(distdir, basename)
 145         size = os.stat(filename).st_size
 146         checksum = None
 147         tempfile_re = re.compile(re.escape(basename) + r'\._checksum_failure_\..*')
 148         for temp_filename in os.listdir(distdir):
 149                 if not tempfile_re.match(temp_filename):
 150                         continue
 151                 temp_filename = os.path.join(distdir, temp_filename)
 152                 try:
 153                         if size != os.stat(temp_filename).st_size:
 154                                 continue
 155                 except OSError:
 156                         continue
 157                 try:
 158                         temp_checksum = perform_md5(temp_filename)
 159                 except FileNotFound:
 160                         # Apparently the temp file disappeared. Let it go.
 161                         continue
 162                 if checksum is None:
 163                         checksum = perform_md5(filename)
 164                 if checksum == temp_checksum:
 165                         os.unlink(filename)
 166                         return temp_filename
 167
 168         fd, temp_filename = \
 169                 tempfile.mkstemp("", basename + "._checksum_failure_.", distdir)
 170         os.close(fd)
 171         os.rename(filename, temp_filename)
 172         return temp_filename
 173
 174 def _check_digests(filename, digests, show_errors=1):
 175         """
 176         Check digests and display a message if an error occurs.
 177         @return True if all digests match, False otherwise.
 178         """
 179         verified_ok, reason = verify_all(filename, digests)
 180         if not verified_ok:
 181                 if show_errors:
 182                         writemsg(_("!!! Previously fetched"
 183                                 " file: '%s'\n") % filename, noiselevel=-1)
 184                         writemsg(_("!!! Reason: %s\n") % reason[0],
 185                                 noiselevel=-1)
 186                         writemsg(_("!!! Got:      %s\n"
 187                                 "!!! Expected: %s\n") % \
 188                                 (reason[1], reason[2]), noiselevel=-1)
 189                 return False
 190         return True
 191
 192 def _check_distfile(filename, digests, eout, show_errors=1, hash_filter=None):
 193         """
 194         @return a tuple of (match, stat_obj) where match is True if filename
 195         matches all given digests (if any) and stat_obj is a stat result, or
 196         None if the file does not exist.
 197         """
 198         if digests is None:
 199                 digests = {}
 200         size = digests.get("size")
 201         if size is not None and len(digests) == 1:
 202                 digests = None
 203
 204         try:
 205                 st = os.stat(filename)
 206         except OSError:
 207                 return (False, None)
 208         if size is not None and size != st.st_size:
 209                 return (False, st)
 210         if not digests:
 211                 if size is not None:
 212                         eout.ebegin(_("%s size ;-)") % os.path.basename(filename))
 213                         eout.eend(0)
 214                 elif st.st_size == 0:
 215                         # Zero-byte distfiles are always invalid.
 216                         return (False, st)
 217         else:
 218                 digests = _filter_unaccelarated_hashes(digests)
 219                 if hash_filter is not None:
 220                         digests = _apply_hash_filter(digests, hash_filter)
 221                 if _check_digests(filename, digests, show_errors=show_errors):
 222                         eout.ebegin("%s %s ;-)" % (os.path.basename(filename),
 223                                 " ".join(sorted(digests))))
 224                         eout.eend(0)
 225                 else:
 226                         return (False, st)
 227         return (True, st)
 228
 229 _fetch_resume_size_re = re.compile('(^[\d]+)([KMGTPEZY]?$)')
 230
 231 _size_suffix_map = {
 232         ''  : 0,
 233         'K' : 10,
 234         'M' : 20,
 235         'G' : 30,
 236         'T' : 40,
 237         'P' : 50,
 238         'E' : 60,
 239         'Z' : 70,
 240         'Y' : 80,
 241 }
 242
 243
 244 def _get_checksum_failure_max_tries(settings, default=5):
 245         """
 246         Get the maximum number of failed download attempts.
 247
 248         Generally, downloading the same file repeatedly from
 249         every single available mirror is a waste of bandwidth
 250         and time, so there needs to be a cap.
 251         """
 252         key = 'PORTAGE_FETCH_CHECKSUM_TRY_MIRRORS'
 253         v = default
 254         try:
 255                 v = int(settings.get(key, default))
 256         except (ValueError, OverflowError):
 257                 writemsg(_("!!! Variable %s contains "
 258                         "non-integer value: '%s'\n")
 259                         % (key, settings[key]),
 260                         noiselevel=-1)
 261                 writemsg(_("!!! Using %s default value: %s\n")
 262                         % (key, default),
 263                         noiselevel=-1)
 264                 v = default
 265         if v < 1:
 266                 writemsg(_("!!! Variable %s contains "
 267                         "value less than 1: '%s'\n")
 268                         % (key, v),
 269                         noiselevel=-1)
 270                 writemsg(_("!!! Using %s default value: %s\n")
 271                         % (key, default),
 272                         noiselevel=-1)
 273                 v = default
 274         return v
 275
 276
 277 def _get_fetch_resume_size(settings, default='350K'):
 278         key = 'PORTAGE_FETCH_RESUME_MIN_SIZE'
 279         v = settings.get(key, default)
 280         if v is not None:
 281                 v = "".join(v.split())
 282         if not v:
 283                 # If it's empty, silently use the default.
 284                 v = default
 285         match = _fetch_resume_size_re.match(v)
 286         if (match is None or
 287                         match.group(2).upper() not in _size_suffix_map):
 288                 writemsg(_("!!! Variable %s contains "
 289                         "an unrecognized format: '%s'\n")
 290                         % (key, settings[key]),
 291                         noiselevel=-1)
 292                 writemsg(_("!!! Using %s default value: %s\n")
 293                         % (key, default),
 294                         noiselevel=-1)
 295                 v = default
 296                 match = _fetch_resume_size_re.match(v)
 297         v = int(match.group(1)) * \
 298                 2 ** _size_suffix_map[match.group(2).upper()]
 299         return v
 300
 301
 302 def _get_file_uri_tuples(uris):
 303         """Return a list of (filename, URI) tuples."""
 304         file_uri_tuples = []
 305         # Check for 'items' attribute since OrderedDict is not a dict.
 306         if hasattr(uris, 'items'):
 307                 for filename, uri_set in uris.items():
 308                         for uri in uri_set:
 309                                 file_uri_tuples.append((filename, uri))
 310                         if not uri_set:
 311                                 file_uri_tuples.append((filename, None))
 312         else:
 313                 for uri in uris:
 314                         if urlparse(uri).scheme:
 315                                 file_uri_tuples.append(
 316                                         (os.path.basename(uri), uri))
 317                         else:
 318                                 file_uri_tuples.append(
 319                                         (os.path.basename(uri), None))
 320         return file_uri_tuples
 321
 322
 323 def _expand_mirror(uri, custom_mirrors=(), third_party_mirrors=()):
 324         """
 325         Replace the 'mirror://' scheme and netloc in the URI.
 326
 327         Returns an iterable listing expanded (group, URI) tuples,
 328         where the group is either 'custom' or 'third-party'.
 329         """
 330         parsed = urlparse(uri)
 331         mirror = parsed.netloc
 332         path = parsed.path
 333         if path:
 334                 # Try user-defined mirrors first
 335                 if mirror in custom_mirrors:
 336                         for cmirr in custom_mirrors[mirror]:
 337                                 m_uri = urlparse(cmirr)
 338                                 yield ('custom', urlunparse((
 339                                         m_uri.scheme, m_uri.netloc, path) +
 340                                         parsed[3:]))
 341
 342                 # now try the official mirrors
 343                 if mirror in third_party_mirrors:
 344                         uris = []
 345                         for locmirr in third_party_mirrors[mirror]:
 346                                 m_uri = urlparse(locmirr)
 347                                 uris.append(urlunparse((
 348                                         m_uri.scheme, m_uri.netloc, path) +
 349                                         parsed[3:]))
 350                         random.shuffle(uris)
 351                         for uri in uris:
 352                                 yield ('third-party', uri)
 353
 354                 if (not custom_mirrors.get(mirror, []) and
 355                                 not third_party_mirrors.get(mirror, [])):
 356                         writemsg(
 357                                 _("No known mirror by the name: %s\n")
 358                                 % mirror)
 359         else:
 360                 writemsg(_("Invalid mirror definition in SRC_URI:\n"),
 361                          noiselevel=-1)
 362                 writemsg("  %s\n" % uri, noiselevel=-1)
 363
 364
 365 def _get_uris(uris, settings, custom_mirrors=(), locations=()):
 366         restrict = settings.get("PORTAGE_RESTRICT", "").split()
 367         restrict_fetch = "fetch" in restrict
 368         restrict_mirror = "mirror" in restrict or "nomirror" in restrict
 369         force_mirror = (
 370                 "force-mirror" in settings.features and
 371                 not restrict_mirror)
 372
 373         third_party_mirrors = settings.thirdpartymirrors()
 374         third_party_mirror_uris = {}
 375         filedict = OrderedDict()
 376         primaryuri_dict = {}
 377         for filename, uri in _get_file_uri_tuples(uris=uris):
 378                 if filename not in filedict:
 379                         filedict[filename] = [
 380                                 os.path.join(location, 'distfiles', filename)
 381                                 for location in locations]
 382                 if uri is None:
 383                         continue
 384                 if uri.startswith('mirror://'):
 385                         expanded_uris = _expand_mirror(
 386                                 uri=uri, custom_mirrors=custom_mirrors,
 387                                 third_party_mirrors=third_party_mirrors)
 388                         filedict[filename].extend(
 389                                 uri for _, uri in expanded_uris)
 390                         third_party_mirror_uris.setdefault(filename, []).extend(
 391                                 uri for group, uri in expanded_uris
 392                                 if group == 'third-party')
 393                 else:
 394                         if restrict_fetch or force_mirror:
 395                                 # Only fetch from specific mirrors is allowed.
 396                                 continue
 397                         primaryuris = primaryuri_dict.get(filename)
 398                         if primaryuris is None:
 399                                 primaryuris = []
 400                                 primaryuri_dict[filename] = primaryuris
 401                         primaryuris.append(uri)
 402
 403         # Order primaryuri_dict values to match that in SRC_URI.
 404         for uris in primaryuri_dict.values():
 405                 uris.reverse()
 406
 407         # Prefer third_party_mirrors over normal mirrors in cases when
 408         # the file does not yet exist on the normal mirrors.
 409         for filename, uris in third_party_mirror_uris.items():
 410                 primaryuri_dict.setdefault(filename, []).extend(uris)
 411
 412         # Now merge primaryuri values into filedict (includes mirrors
 413         # explicitly referenced in SRC_URI).
 414         if "primaryuri" in restrict:
 415                 for filename, uris in filedict.items():
 416                         filedict[filename] = primaryuri_dict.get(filename, []) + uris
 417         else:
 418                 for filename in filedict:
 419                         filedict[filename] += primaryuri_dict.get(filename, [])
 420
 421         return filedict, primaryuri_dict
 422
 423
 424 def fetch(myuris, mysettings, listonly=0, fetchonly=0,
 425         locks_in_subdir=".locks", use_locks=1, try_mirrors=1, digests=None,
 426         allow_missing_digests=True):
 427         "fetch files.  Will use digest file if available."
 428
 429         if not myuris:
 430                 return 1
 431
 432         features = mysettings.features
 433         restrict = mysettings.get("PORTAGE_RESTRICT","").split()
 434
 435         userfetch = secpass >= 2 and "userfetch" in features
 436         userpriv = secpass >= 2 and "userpriv" in features
 437
 438         # 'nomirror' is bad/negative logic. You Restrict mirroring, not no-mirroring.
 439         restrict_mirror = "mirror" in restrict or "nomirror" in restrict
 440         if restrict_mirror:
 441                 if ("mirror" in features) and ("lmirror" not in features):
 442                         # lmirror should allow you to bypass mirror restrictions.
 443                         # XXX: This is not a good thing, and is temporary at best.
 444                         print(_(">>> \"mirror\" mode desired and \"mirror\" restriction found; skipping fetch."))
 445                         return 1
 446
 447         checksum_failure_max_tries = _get_checksum_failure_max_tries(
 448                 settings=mysettings)
 449         fetch_resume_size = _get_fetch_resume_size(settings=mysettings)
 450
 451         # Behave like the package has RESTRICT="primaryuri" after a
 452         # couple of checksum failures, to increase the probablility
 453         # of success before checksum_failure_max_tries is reached.
 454         checksum_failure_primaryuri = 2
 455
 456         # In the background parallel-fetch process, it's safe to skip checksum
 457         # verification of pre-existing files in $DISTDIR that have the correct
 458         # file size. The parent process will verify their checksums prior to
 459         # the unpack phase.
 460
 461         parallel_fetchonly = "PORTAGE_PARALLEL_FETCHONLY" in mysettings
 462         if parallel_fetchonly:
 463                 fetchonly = 1
 464
 465         check_config_instance(mysettings)
 466
 467         custommirrors = grabdict(os.path.join(mysettings["PORTAGE_CONFIGROOT"],
 468                 CUSTOM_MIRRORS_FILE), recursive=1)
 469
 470         mymirrors=[]
 471
 472         if listonly or ("distlocks" not in features):
 473                 use_locks = 0
 474
 475         fetch_to_ro = 0
 476         if "skiprocheck" in features:
 477                 fetch_to_ro = 1
 478
 479         if not os.access(mysettings["DISTDIR"],os.W_OK) and fetch_to_ro:
 480                 if use_locks:
 481                         writemsg(colorize("BAD",
 482                                 _("!!! For fetching to a read-only filesystem, "
 483                                 "locking should be turned off.\n")), noiselevel=-1)
 484                         writemsg(_("!!! This can be done by adding -distlocks to "
 485                                 "FEATURES in /etc/portage/make.conf\n"), noiselevel=-1)
 486 #                       use_locks = 0
 487
 488         # local mirrors are always added
 489         if "local" in custommirrors:
 490                 mymirrors += custommirrors["local"]
 491
 492         if restrict_mirror:
 493                 # We don't add any mirrors.
 494                 pass
 495         else:
 496                 if try_mirrors:
 497                         mymirrors += [x.rstrip("/") for x in mysettings["GENTOO_MIRRORS"].split() if x]
 498
 499         hash_filter = _hash_filter(mysettings.get("PORTAGE_CHECKSUM_FILTER", ""))
 500         if hash_filter.transparent:
 501                 hash_filter = None
 502         skip_manifest = mysettings.get("EBUILD_SKIP_MANIFEST") == "1"
 503         if skip_manifest:
 504                 allow_missing_digests = True
 505         pkgdir = mysettings.get("O")
 506         if digests is None and not (pkgdir is None or skip_manifest):
 507                 mydigests = mysettings.repositories.get_repo_for_location(
 508                         os.path.dirname(os.path.dirname(pkgdir))).load_manifest(
 509                         pkgdir, mysettings["DISTDIR"]).getTypeDigests("DIST")
 510         elif digests is None or skip_manifest:
 511                 # no digests because fetch was not called for a specific package
 512                 mydigests = {}
 513         else:
 514                 mydigests = digests
 515
 516         ro_distdirs = [x for x in \
 517                 shlex_split(mysettings.get("PORTAGE_RO_DISTDIRS", "")) \
 518                 if os.path.isdir(x)]
 519
 520         fsmirrors = []
 521         for x in range(len(mymirrors)-1,-1,-1):
 522                 if mymirrors[x] and mymirrors[x][0]=='/':
 523                         fsmirrors += [mymirrors[x]]
 524                         del mymirrors[x]
 525
 526         restrict_fetch = "fetch" in restrict
 527         custom_local_mirrors = custommirrors.get("local", [])
 528         if restrict_fetch:
 529                 # With fetch restriction, a normal uri may only be fetched from
 530                 # custom local mirrors (if available).  A mirror:// uri may also
 531                 # be fetched from specific mirrors (effectively overriding fetch
 532                 # restriction, but only for specific mirrors).
 533                 locations = custom_local_mirrors
 534         else:
 535                 locations = mymirrors
 536
 537         filedict, primaryuri_dict = _get_uris(
 538                 uris=myuris, settings=mysettings,
 539                 custom_mirrors=custommirrors, locations=locations)
 540
 541         can_fetch=True
 542
 543         if listonly:
 544                 can_fetch = False
 545
 546         if can_fetch and not fetch_to_ro:
 547                 global _userpriv_test_write_file_cache
 548                 dirmode  = 0o070
 549                 filemode =   0o60
 550                 modemask =    0o2
 551                 dir_gid = portage_gid
 552                 if "FAKED_MODE" in mysettings:
 553                         # When inside fakeroot, directories with portage's gid appear
 554                         # to have root's gid. Therefore, use root's gid instead of
 555                         # portage's gid to avoid spurrious permissions adjustments
 556                         # when inside fakeroot.
 557                         dir_gid = 0
 558                 distdir_dirs = [""]
 559                 try:
 560
 561                         for x in distdir_dirs:
 562                                 mydir = os.path.join(mysettings["DISTDIR"], x)
 563                                 write_test_file = os.path.join(
 564                                         mydir, ".__portage_test_write__")
 565
 566                                 try:
 567                                         st = os.stat(mydir)
 568                                 except OSError:
 569                                         st = None
 570
 571                                 if st is not None and stat.S_ISDIR(st.st_mode):
 572                                         if not (userfetch or userpriv):
 573                                                 continue
 574                                         if _userpriv_test_write_file(mysettings, write_test_file):
 575                                                 continue
 576
 577                                 _userpriv_test_write_file_cache.pop(write_test_file, None)
 578                                 if ensure_dirs(mydir, gid=dir_gid, mode=dirmode, mask=modemask):
 579                                         if st is None:
 580                                                 # The directory has just been created
 581                                                 # and therefore it must be empty.
 582                                                 continue
 583                                         writemsg(_("Adjusting permissions recursively: '%s'\n") % mydir,
 584                                                 noiselevel=-1)
 585                                         def onerror(e):
 586                                                 raise # bail out on the first error that occurs during recursion
 587                                         if not apply_recursive_permissions(mydir,
 588                                                 gid=dir_gid, dirmode=dirmode, dirmask=modemask,
 589                                                 filemode=filemode, filemask=modemask, onerror=onerror):
 590                                                 raise OperationNotPermitted(
 591                                                         _("Failed to apply recursive permissions for the portage group."))
 592                 except PortageException as e:
 593                         if not os.path.isdir(mysettings["DISTDIR"]):
 594                                 writemsg("!!! %s\n" % str(e), noiselevel=-1)
 595                                 writemsg(_("!!! Directory Not Found: DISTDIR='%s'\n") % mysettings["DISTDIR"], noiselevel=-1)
 596                                 writemsg(_("!!! Fetching will fail!\n"), noiselevel=-1)
 597
 598         if can_fetch and \
 599                 not fetch_to_ro and \
 600                 not os.access(mysettings["DISTDIR"], os.W_OK):
 601                 writemsg(_("!!! No write access to '%s'\n") % mysettings["DISTDIR"],
 602                         noiselevel=-1)
 603                 can_fetch = False
 604
 605         distdir_writable = can_fetch and not fetch_to_ro
 606         failed_files = set()
 607         restrict_fetch_msg = False
 608
 609         for myfile in filedict:
 610                 """
 611                 fetched  status
 612                 0        nonexistent
 613                 1        partially downloaded
 614                 2        completely downloaded
 615                 """
 616                 fetched = 0
 617
 618                 orig_digests = mydigests.get(myfile, {})
 619
 620                 if not (allow_missing_digests or listonly):
 621                         verifiable_hash_types = set(orig_digests).intersection(hashfunc_map)
 622                         verifiable_hash_types.discard("size")
 623                         if not verifiable_hash_types:
 624                                 expected = set(hashfunc_map)
 625                                 expected.discard("size")
 626                                 expected = " ".join(sorted(expected))
 627                                 got = set(orig_digests)
 628                                 got.discard("size")
 629                                 got = " ".join(sorted(got))
 630                                 reason = (_("Insufficient data for checksum verification"),
 631                                         got, expected)
 632                                 writemsg(_("!!! Fetched file: %s VERIFY FAILED!\n") % myfile,
 633                                         noiselevel=-1)
 634                                 writemsg(_("!!! Reason: %s\n") % reason[0],
 635                                         noiselevel=-1)
 636                                 writemsg(_("!!! Got:      %s\n!!! Expected: %s\n") % \
 637                                         (reason[1], reason[2]), noiselevel=-1)
 638
 639                                 if fetchonly:
 640                                         failed_files.add(myfile)
 641                                         continue
 642                                 else:
 643                                         return 0
 644
 645                 size = orig_digests.get("size")
 646                 if size == 0:
 647                         # Zero-byte distfiles are always invalid, so discard their digests.
 648                         del mydigests[myfile]
 649                         orig_digests.clear()
 650                         size = None
 651                 pruned_digests = orig_digests
 652                 if parallel_fetchonly:
 653                         pruned_digests = {}
 654                         if size is not None:
 655                                 pruned_digests["size"] = size
 656
 657                 myfile_path = os.path.join(mysettings["DISTDIR"], myfile)
 658                 has_space = True
 659                 has_space_superuser = True
 660                 file_lock = None
 661                 if listonly:
 662                         writemsg_stdout("\n", noiselevel=-1)
 663                 else:
 664                         # check if there is enough space in DISTDIR to completely store myfile
 665                         # overestimate the filesize so we aren't bitten by FS overhead
 666                         vfs_stat = None
 667                         if size is not None and hasattr(os, "statvfs"):
 668                                 try:
 669                                         vfs_stat = os.statvfs(mysettings["DISTDIR"])
 670                                 except OSError as e:
 671                                         writemsg_level("!!! statvfs('%s'): %s\n" %
 672                                                 (mysettings["DISTDIR"], e),
 673                                                 noiselevel=-1, level=logging.ERROR)
 674                                         del e
 675
 676                         if vfs_stat is not None:
 677                                 try:
 678                                         mysize = os.stat(myfile_path).st_size
 679                                 except OSError as e:
 680                                         if e.errno not in (errno.ENOENT, errno.ESTALE):
 681                                                 raise
 682                                         del e
 683                                         mysize = 0
 684                                 if (size - mysize + vfs_stat.f_bsize) >= \
 685                                         (vfs_stat.f_bsize * vfs_stat.f_bavail):
 686
 687                                         if (size - mysize + vfs_stat.f_bsize) >= \
 688                                                 (vfs_stat.f_bsize * vfs_stat.f_bfree):
 689                                                 has_space_superuser = False
 690
 691                                         if not has_space_superuser:
 692                                                 has_space = False
 693                                         elif secpass < 2:
 694                                                 has_space = False
 695                                         elif userfetch:
 696                                                 has_space = False
 697
 698                         if distdir_writable and use_locks:
 699
 700                                 lock_kwargs = {}
 701                                 if fetchonly:
 702                                         lock_kwargs["flags"] = os.O_NONBLOCK
 703
 704                                 try:
 705                                         file_lock = lockfile(myfile_path,
 706                                                 wantnewlockfile=1, **lock_kwargs)
 707                                 except TryAgain:
 708                                         writemsg(_(">>> File '%s' is already locked by "
 709                                                 "another fetcher. Continuing...\n") % myfile,
 710                                                 noiselevel=-1)
 711                                         continue
 712                 try:
 713                         if not listonly:
 714
 715                                 eout = EOutput()
 716                                 eout.quiet = mysettings.get("PORTAGE_QUIET") == "1"
 717                                 match, mystat = _check_distfile(
 718                                         myfile_path, pruned_digests, eout, hash_filter=hash_filter)
 719                                 if match:
 720                                         # Skip permission adjustment for symlinks, since we don't
 721                                         # want to modify anything outside of the primary DISTDIR,
 722                                         # and symlinks typically point to PORTAGE_RO_DISTDIRS.
 723                                         if distdir_writable and not os.path.islink(myfile_path):
 724                                                 try:
 725                                                         apply_secpass_permissions(myfile_path,
 726                                                                 gid=portage_gid, mode=0o664, mask=0o2,
 727                                                                 stat_cached=mystat)
 728                                                 except PortageException as e:
 729                                                         if not os.access(myfile_path, os.R_OK):
 730                                                                 writemsg(_("!!! Failed to adjust permissions:"
 731                                                                         " %s\n") % str(e), noiselevel=-1)
 732                                                         del e
 733                                         continue
 734
 735                                 if distdir_writable and mystat is None:
 736                                         # Remove broken symlinks if necessary.
 737                                         try:
 738                                                 os.unlink(myfile_path)
 739                                         except OSError:
 740                                                 pass
 741
 742                                 if mystat is not None:
 743                                         if stat.S_ISDIR(mystat.st_mode):
 744                                                 writemsg_level(
 745                                                         _("!!! Unable to fetch file since "
 746                                                         "a directory is in the way: \n"
 747                                                         "!!!   %s\n") % myfile_path,
 748                                                         level=logging.ERROR, noiselevel=-1)
 749                                                 return 0
 750
 751                                         if mystat.st_size == 0:
 752                                                 if distdir_writable:
 753                                                         try:
 754                                                                 os.unlink(myfile_path)
 755                                                         except OSError:
 756                                                                 pass
 757                                         elif distdir_writable:
 758                                                 if mystat.st_size < fetch_resume_size and \
 759                                                         mystat.st_size < size:
 760                                                         # If the file already exists and the size does not
 761                                                         # match the existing digests, it may be that the
 762                                                         # user is attempting to update the digest. In this
 763                                                         # case, the digestgen() function will advise the
 764                                                         # user to use `ebuild --force foo.ebuild manifest`
 765                                                         # in order to force the old digests to be replaced.
 766                                                         # Since the user may want to keep this file, rename
 767                                                         # it instead of deleting it.
 768                                                         writemsg(_(">>> Renaming distfile with size "
 769                                                                 "%d (smaller than " "PORTAGE_FETCH_RESU"
 770                                                                 "ME_MIN_SIZE)\n") % mystat.st_size)
 771                                                         temp_filename = \
 772                                                                 _checksum_failure_temp_file(
 773                                                                 mysettings["DISTDIR"], myfile)
 774                                                         writemsg_stdout(_("Refetching... "
 775                                                                 "File renamed to '%s'\n\n") % \
 776                                                                 temp_filename, noiselevel=-1)
 777                                                 elif mystat.st_size >= size:
 778                                                         temp_filename = \
 779                                                                 _checksum_failure_temp_file(
 780                                                                 mysettings["DISTDIR"], myfile)
 781                                                         writemsg_stdout(_("Refetching... "
 782                                                                 "File renamed to '%s'\n\n") % \
 783                                                                 temp_filename, noiselevel=-1)
 784
 785                                 if distdir_writable and ro_distdirs:
 786                                         readonly_file = None
 787                                         for x in ro_distdirs:
 788                                                 filename = os.path.join(x, myfile)
 789                                                 match, mystat = _check_distfile(
 790                                                         filename, pruned_digests, eout, hash_filter=hash_filter)
 791                                                 if match:
 792                                                         readonly_file = filename
 793                                                         break
 794                                         if readonly_file is not None:
 795                                                 try:
 796                                                         os.unlink(myfile_path)
 797                                                 except OSError as e:
 798                                                         if e.errno not in (errno.ENOENT, errno.ESTALE):
 799                                                                 raise
 800                                                         del e
 801                                                 os.symlink(readonly_file, myfile_path)
 802                                                 continue
 803
 804                                 # this message is shown only after we know that
 805                                 # the file is not already fetched
 806                                 if not has_space:
 807                                         writemsg(_("!!! Insufficient space to store %s in %s\n") % \
 808                                                 (myfile, mysettings["DISTDIR"]), noiselevel=-1)
 809
 810                                         if has_space_superuser:
 811                                                 writemsg(_("!!! Insufficient privileges to use "
 812                                                         "remaining space.\n"), noiselevel=-1)
 813                                                 if userfetch:
 814                                                         writemsg(_("!!! You may set FEATURES=\"-userfetch\""
 815                                                                 " in /etc/portage/make.conf in order to fetch with\n"
 816                                                                 "!!! superuser privileges.\n"), noiselevel=-1)
 817
 818                                 if fsmirrors and not os.path.exists(myfile_path) and has_space:
 819                                         for mydir in fsmirrors:
 820                                                 mirror_file = os.path.join(mydir, myfile)
 821                                                 try:
 822                                                         shutil.copyfile(mirror_file, myfile_path)
 823                                                         writemsg(_("Local mirror has file: %s\n") % myfile)
 824                                                         break
 825                                                 except (IOError, OSError) as e:
 826                                                         if e.errno not in (errno.ENOENT, errno.ESTALE):
 827                                                                 raise
 828                                                         del e
 829
 830                                 try:
 831                                         mystat = os.stat(myfile_path)
 832                                 except OSError as e:
 833                                         if e.errno not in (errno.ENOENT, errno.ESTALE):
 834                                                 raise
 835                                         del e
 836                                 else:
 837                                         # Skip permission adjustment for symlinks, since we don't
 838                                         # want to modify anything outside of the primary DISTDIR,
 839                                         # and symlinks typically point to PORTAGE_RO_DISTDIRS.
 840                                         if not os.path.islink(myfile_path):
 841                                                 try:
 842                                                         apply_secpass_permissions(myfile_path,
 843                                                                 gid=portage_gid, mode=0o664, mask=0o2,
 844                                                                 stat_cached=mystat)
 845                                                 except PortageException as e:
 846                                                         if not os.access(myfile_path, os.R_OK):
 847                                                                 writemsg(_("!!! Failed to adjust permissions:"
 848                                                                         " %s\n") % (e,), noiselevel=-1)
 849
 850                                         # If the file is empty then it's obviously invalid. Remove
 851                                         # the empty file and try to download if possible.
 852                                         if mystat.st_size == 0:
 853                                                 if distdir_writable:
 854                                                         try:
 855                                                                 os.unlink(myfile_path)
 856                                                         except EnvironmentError:
 857                                                                 pass
 858                                         elif myfile not in mydigests:
 859                                                 # We don't have a digest, but the file exists.  We must
 860                                                 # assume that it is fully downloaded.
 861                                                 continue
 862                                         else:
 863                                                 if mystat.st_size < mydigests[myfile]["size"] and \
 864                                                         not restrict_fetch:
 865                                                         fetched = 1 # Try to resume this download.
 866                                                 elif parallel_fetchonly and \
 867                                                         mystat.st_size == mydigests[myfile]["size"]:
 868                                                         eout = EOutput()
 869                                                         eout.quiet = \
 870                                                                 mysettings.get("PORTAGE_QUIET") == "1"
 871                                                         eout.ebegin(
 872                                                                 "%s size ;-)" % (myfile, ))
 873                                                         eout.eend(0)
 874                                                         continue
 875                                                 else:
 876                                                         digests = _filter_unaccelarated_hashes(mydigests[myfile])
 877                                                         if hash_filter is not None:
 878                                                                 digests = _apply_hash_filter(digests, hash_filter)
 879                                                         verified_ok, reason = verify_all(myfile_path, digests)
 880                                                         if not verified_ok:
 881                                                                 writemsg(_("!!! Previously fetched"
 882                                                                         " file: '%s'\n") % myfile, noiselevel=-1)
 883                                                                 writemsg(_("!!! Reason: %s\n") % reason[0],
 884                                                                         noiselevel=-1)
 885                                                                 writemsg(_("!!! Got:      %s\n"
 886                                                                         "!!! Expected: %s\n") % \
 887                                                                         (reason[1], reason[2]), noiselevel=-1)
 888                                                                 if reason[0] == _("Insufficient data for checksum verification"):
 889                                                                         return 0
 890                                                                 if distdir_writable:
 891                                                                         temp_filename = \
 892                                                                                 _checksum_failure_temp_file(
 893                                                                                 mysettings["DISTDIR"], myfile)
 894                                                                         writemsg_stdout(_("Refetching... "
 895                                                                                 "File renamed to '%s'\n\n") % \
 896                                                                                 temp_filename, noiselevel=-1)
 897                                                         else:
 898                                                                 eout = EOutput()
 899                                                                 eout.quiet = \
 900                                                                         mysettings.get("PORTAGE_QUIET", None) == "1"
 901                                                                 if digests:
 902                                                                         digests = list(digests)
 903                                                                         digests.sort()
 904                                                                         eout.ebegin(
 905                                                                                 "%s %s ;-)" % (myfile, " ".join(digests)))
 906                                                                         eout.eend(0)
 907                                                                 continue # fetch any remaining files
 908
 909                         # Create a reversed list since that is optimal for list.pop().
 910                         uri_list = filedict[myfile][:]
 911                         uri_list.reverse()
 912                         checksum_failure_count = 0
 913                         tried_locations = set()
 914                         while uri_list:
 915                                 loc = uri_list.pop()
 916                                 # Eliminate duplicates here in case we've switched to
 917                                 # "primaryuri" mode on the fly due to a checksum failure.
 918                                 if loc in tried_locations:
 919                                         continue
 920                                 tried_locations.add(loc)
 921                                 if listonly:
 922                                         writemsg_stdout(loc+" ", noiselevel=-1)
 923                                         continue
 924                                 # allow different fetchcommands per protocol
 925                                 protocol = loc[0:loc.find("://")]
 926
 927                                 global_config_path = GLOBAL_CONFIG_PATH
 928                                 if portage.const.EPREFIX:
 929                                         global_config_path = os.path.join(portage.const.EPREFIX,
 930                                                         GLOBAL_CONFIG_PATH.lstrip(os.sep))
 931
 932                                 missing_file_param = False
 933                                 fetchcommand_var = "FETCHCOMMAND_" + protocol.upper()
 934                                 fetchcommand = mysettings.get(fetchcommand_var)
 935                                 if fetchcommand is None:
 936                                         fetchcommand_var = "FETCHCOMMAND"
 937                                         fetchcommand = mysettings.get(fetchcommand_var)
 938                                         if fetchcommand is None:
 939                                                 writemsg_level(
 940                                                         _("!!! %s is unset. It should "
 941                                                         "have been defined in\n!!! %s/make.globals.\n") \
 942                                                         % (fetchcommand_var, global_config_path),
 943                                                         level=logging.ERROR, noiselevel=-1)
 944                                                 return 0
 945                                 if "${FILE}" not in fetchcommand:
 946                                         writemsg_level(
 947                                                 _("!!! %s does not contain the required ${FILE}"
 948                                                 " parameter.\n") % fetchcommand_var,
 949                                                 level=logging.ERROR, noiselevel=-1)
 950                                         missing_file_param = True
 951
 952                                 resumecommand_var = "RESUMECOMMAND_" + protocol.upper()
 953                                 resumecommand = mysettings.get(resumecommand_var)
 954                                 if resumecommand is None:
 955                                         resumecommand_var = "RESUMECOMMAND"
 956                                         resumecommand = mysettings.get(resumecommand_var)
 957                                         if resumecommand is None:
 958                                                 writemsg_level(
 959                                                         _("!!! %s is unset. It should "
 960                                                         "have been defined in\n!!! %s/make.globals.\n") \
 961                                                         % (resumecommand_var, global_config_path),
 962                                                         level=logging.ERROR, noiselevel=-1)
 963                                                 return 0
 964                                 if "${FILE}" not in resumecommand:
 965                                         writemsg_level(
 966                                                 _("!!! %s does not contain the required ${FILE}"
 967                                                 " parameter.\n") % resumecommand_var,
 968                                                 level=logging.ERROR, noiselevel=-1)
 969                                         missing_file_param = True
 970
 971                                 if missing_file_param:
 972                                         writemsg_level(
 973                                                 _("!!! Refer to the make.conf(5) man page for "
 974                                                 "information about how to\n!!! correctly specify "
 975                                                 "FETCHCOMMAND and RESUMECOMMAND.\n"),
 976                                                 level=logging.ERROR, noiselevel=-1)
 977                                         if myfile != os.path.basename(loc):
 978                                                 return 0
 979
 980                                 if not can_fetch:
 981                                         if fetched != 2:
 982                                                 try:
 983                                                         mysize = os.stat(myfile_path).st_size
 984                                                 except OSError as e:
 985                                                         if e.errno not in (errno.ENOENT, errno.ESTALE):
 986                                                                 raise
 987                                                         del e
 988                                                         mysize = 0
 989
 990                                                 if mysize == 0:
 991                                                         writemsg(_("!!! File %s isn't fetched but unable to get it.\n") % myfile,
 992                                                                 noiselevel=-1)
 993                                                 elif size is None or size > mysize:
 994                                                         writemsg(_("!!! File %s isn't fully fetched, but unable to complete it\n") % myfile,
 995                                                                 noiselevel=-1)
 996                                                 else:
 997                                                         writemsg(_("!!! File %s is incorrect size, "
 998                                                                 "but unable to retry.\n") % myfile, noiselevel=-1)
 999                                                 return 0
1000                                         else:
1001                                                 continue
1002
1003                                 if fetched != 2 and has_space:
1004                                         #we either need to resume or start the download
1005                                         if fetched == 1:
1006                                                 try:
1007                                                         mystat = os.stat(myfile_path)
1008                                                 except OSError as e:
1009                                                         if e.errno not in (errno.ENOENT, errno.ESTALE):
1010                                                                 raise
1011                                                         del e
1012                                                         fetched = 0
1013                                                 else:
1014                                                         if mystat.st_size < fetch_resume_size:
1015                                                                 writemsg(_(">>> Deleting distfile with size "
1016                                                                         "%d (smaller than " "PORTAGE_FETCH_RESU"
1017                                                                         "ME_MIN_SIZE)\n") % mystat.st_size)
1018                                                                 try:
1019                                                                         os.unlink(myfile_path)
1020                                                                 except OSError as e:
1021                                                                         if e.errno not in \
1022                                                                                 (errno.ENOENT, errno.ESTALE):
1023                                                                                 raise
1024                                                                         del e
1025                                                                 fetched = 0
1026                                         if fetched == 1:
1027                                                 #resume mode:
1028                                                 writemsg(_(">>> Resuming download...\n"))
1029                                                 locfetch=resumecommand
1030                                                 command_var = resumecommand_var
1031                                         else:
1032                                                 #normal mode:
1033                                                 locfetch=fetchcommand
1034                                                 command_var = fetchcommand_var
1035                                         writemsg_stdout(_(">>> Downloading '%s'\n") % \
1036                                                 _hide_url_passwd(loc))
1037                                         variables = {
1038                                                 "URI":     loc,
1039                                                 "FILE":    myfile
1040                                         }
1041
1042                                         for k in ("DISTDIR", "PORTAGE_SSH_OPTS"):
1043                                                 try:
1044                                                         variables[k] = mysettings[k]
1045                                                 except KeyError:
1046                                                         pass
1047
1048                                         myfetch = shlex_split(locfetch)
1049                                         myfetch = [varexpand(x, mydict=variables) for x in myfetch]
1050                                         myret = -1
1051                                         try:
1052
1053                                                 myret = _spawn_fetch(mysettings, myfetch)
1054
1055                                         finally:
1056                                                 try:
1057                                                         apply_secpass_permissions(myfile_path,
1058                                                                 gid=portage_gid, mode=0o664, mask=0o2)
1059                                                 except FileNotFound:
1060                                                         pass
1061                                                 except PortageException as e:
1062                                                         if not os.access(myfile_path, os.R_OK):
1063                                                                 writemsg(_("!!! Failed to adjust permissions:"
1064                                                                         " %s\n") % str(e), noiselevel=-1)
1065                                                         del e
1066
1067                                         # If the file is empty then it's obviously invalid.  Don't
1068                                         # trust the return value from the fetcher.  Remove the
1069                                         # empty file and try to download again.
1070                                         try:
1071                                                 if os.stat(myfile_path).st_size == 0:
1072                                                         os.unlink(myfile_path)
1073                                                         fetched = 0
1074                                                         continue
1075                                         except EnvironmentError:
1076                                                 pass
1077
1078                                         if mydigests is not None and myfile in mydigests:
1079                                                 try:
1080                                                         mystat = os.stat(myfile_path)
1081                                                 except OSError as e:
1082                                                         if e.errno not in (errno.ENOENT, errno.ESTALE):
1083                                                                 raise
1084                                                         del e
1085                                                         fetched = 0
1086                                                 else:
1087
1088                                                         if stat.S_ISDIR(mystat.st_mode):
1089                                                                 # This can happen if FETCHCOMMAND erroneously
1090                                                                 # contains wget's -P option where it should
1091                                                                 # instead have -O.
1092                                                                 writemsg_level(
1093                                                                         _("!!! The command specified in the "
1094                                                                         "%s variable appears to have\n!!! "
1095                                                                         "created a directory instead of a "
1096                                                                         "normal file.\n") % command_var,
1097                                                                         level=logging.ERROR, noiselevel=-1)
1098                                                                 writemsg_level(
1099                                                                         _("!!! Refer to the make.conf(5) "
1100                                                                         "man page for information about how "
1101                                                                         "to\n!!! correctly specify "
1102                                                                         "FETCHCOMMAND and RESUMECOMMAND.\n"),
1103                                                                         level=logging.ERROR, noiselevel=-1)
1104                                                                 return 0
1105
1106                                                         # no exception?  file exists. let digestcheck() report
1107                                                         # an appropriately for size or checksum errors
1108
1109                                                         # If the fetcher reported success and the file is
1110                                                         # too small, it's probably because the digest is
1111                                                         # bad (upstream changed the distfile).  In this
1112                                                         # case we don't want to attempt to resume. Show a
1113                                                         # digest verification failure to that the user gets
1114                                                         # a clue about what just happened.
1115                                                         if myret != os.EX_OK and \
1116                                                                 mystat.st_size < mydigests[myfile]["size"]:
1117                                                                 # Fetch failed... Try the next one... Kill 404 files though.
1118                                                                 if (mystat[stat.ST_SIZE]<100000) and (len(myfile)>4) and not ((myfile[-5:]==".html") or (myfile[-4:]==".htm")):
1119                                                                         html404=re.compile("<title>.*(not found|404).*</title>",re.I|re.M)
1120                                                                         with io.open(
1121                                                                                 _unicode_encode(myfile_path,
1122                                                                                 encoding=_encodings['fs'], errors='strict'),
1123                                                                                 mode='r', encoding=_encodings['content'], errors='replace'
1124                                                                                 ) as f:
1125                                                                                 if html404.search(f.read()):
1126                                                                                         try:
1127                                                                                                 os.unlink(mysettings["DISTDIR"]+"/"+myfile)
1128                                                                                                 writemsg(_(">>> Deleting invalid distfile. (Improper 404 redirect from server.)\n"))
1129                                                                                                 fetched = 0
1130                                                                                                 continue
1131                                                                                         except (IOError, OSError):
1132                                                                                                 pass
1133                                                                 fetched = 1
1134                                                                 continue
1135                                                         if True:
1136                                                                 # File is the correct size--check the checksums for the fetched
1137                                                                 # file NOW, for those users who don't have a stable/continuous
1138                                                                 # net connection. This way we have a chance to try to download
1139                                                                 # from another mirror...
1140                                                                 digests = _filter_unaccelarated_hashes(mydigests[myfile])
1141                                                                 if hash_filter is not None:
1142                                                                         digests = _apply_hash_filter(digests, hash_filter)
1143                                                                 verified_ok, reason = verify_all(myfile_path, digests)
1144                                                                 if not verified_ok:
1145                                                                         writemsg(_("!!! Fetched file: %s VERIFY FAILED!\n") % myfile,
1146                                                                                 noiselevel=-1)
1147                                                                         writemsg(_("!!! Reason: %s\n") % reason[0],
1148                                                                                 noiselevel=-1)
1149                                                                         writemsg(_("!!! Got:      %s\n!!! Expected: %s\n") % \
1150                                                                                 (reason[1], reason[2]), noiselevel=-1)
1151                                                                         if reason[0] == _("Insufficient data for checksum verification"):
1152                                                                                 return 0
1153                                                                         temp_filename = \
1154                                                                                 _checksum_failure_temp_file(
1155                                                                                 mysettings["DISTDIR"], myfile)
1156                                                                         writemsg_stdout(_("Refetching... "
1157                                                                                 "File renamed to '%s'\n\n") % \
1158                                                                                 temp_filename, noiselevel=-1)
1159                                                                         fetched=0
1160                                                                         checksum_failure_count += 1
1161                                                                         if checksum_failure_count == \
1162                                                                                 checksum_failure_primaryuri:
1163                                                                                 # Switch to "primaryuri" mode in order
1164                                                                                 # to increase the probablility of
1165                                                                                 # of success.
1166                                                                                 primaryuris = \
1167                                                                                         primaryuri_dict.get(myfile)
1168                                                                                 if primaryuris:
1169                                                                                         uri_list.extend(
1170                                                                                                 reversed(primaryuris))
1171                                                                         if checksum_failure_count >= \
1172                                                                                 checksum_failure_max_tries:
1173                                                                                 break
1174                                                                 else:
1175                                                                         eout = EOutput()
1176                                                                         eout.quiet = mysettings.get("PORTAGE_QUIET", None) == "1"
1177                                                                         if digests:
1178                                                                                 eout.ebegin("%s %s ;-)" % \
1179                                                                                         (myfile, " ".join(sorted(digests))))
1180                                                                                 eout.eend(0)
1181                                                                         fetched=2
1182                                                                         break
1183                                         else:
1184                                                 if not myret:
1185                                                         fetched=2
1186                                                         break
1187                                                 elif mydigests!=None:
1188                                                         writemsg(_("No digest file available and download failed.\n\n"),
1189                                                                 noiselevel=-1)
1190                 finally:
1191                         if use_locks and file_lock:
1192                                 unlockfile(file_lock)
1193                                 file_lock = None
1194
1195                 if listonly:
1196                         writemsg_stdout("\n", noiselevel=-1)
1197                 if fetched != 2:
1198                         if restrict_fetch and not restrict_fetch_msg:
1199                                 restrict_fetch_msg = True
1200                                 msg = _("\n!!! %s/%s"
1201                                         " has fetch restriction turned on.\n"
1202                                         "!!! This probably means that this "
1203                                         "ebuild's files must be downloaded\n"
1204                                         "!!! manually.  See the comments in"
1205                                         " the ebuild for more information.\n\n") % \
1206                                         (mysettings["CATEGORY"], mysettings["PF"])
1207                                 writemsg_level(msg,
1208                                         level=logging.ERROR, noiselevel=-1)
1209                         elif restrict_fetch:
1210                                 pass
1211                         elif listonly:
1212                                 pass
1213                         elif not filedict[myfile]:
1214                                 writemsg(_("Warning: No mirrors available for file"
1215                                         " '%s'\n") % (myfile), noiselevel=-1)
1216                         else:
1217                                 writemsg(_("!!! Couldn't download '%s'. Aborting.\n") % myfile,
1218                                         noiselevel=-1)
1219
1220                         if listonly:
1221                                 failed_files.add(myfile)
1222                                 continue
1223                         elif fetchonly:
1224                                 failed_files.add(myfile)
1225                                 continue
1226                         return 0
1227         if failed_files:
1228                 return 0
1229         return 1