def _init_ipc_fifos(self): input_fifo = os.path.join( self.settings['PORTAGE_BUILDDIR'], '.ipc_in') output_fifo = os.path.join( self.settings['PORTAGE_BUILDDIR'], '.ipc_out') for p in (input_fifo, output_fifo): st = None try: st = os.lstat(p) except OSError: os.mkfifo(p) else: if not stat.S_ISFIFO(st.st_mode): st = None try: os.unlink(p) except OSError: pass os.mkfifo(p) apply_secpass_permissions(p, uid=os.getuid(), gid=portage.data.portage_gid, mode=0o770, stat_cached=st) return (input_fifo, output_fifo)
def _init_ipc_fifos(self):
input_fifo = os.path.join(self.settings["PORTAGE_BUILDDIR"], ".ipc_in")
output_fifo = os.path.join(self.settings["PORTAGE_BUILDDIR"],
".ipc_out")
for p in (input_fifo, output_fifo):
st = None
try:
st = os.lstat(p)
except OSError:
os.mkfifo(p)
else:
if not stat.S_ISFIFO(st.st_mode):
st = None
try:
os.unlink(p)
except OSError:
pass
os.mkfifo(p)
apply_secpass_permissions(
p,
uid=os.getuid(),
gid=portage.data.portage_gid,
mode=0o770,
stat_cached=st,
)
return (input_fifo, output_fifo)
def commit(self):
if not self.filename:
return
d = {}
d.update(self)
# Only commit if the internal state has changed.
if d != self._clean_data:
d["version"] = str(portage.VERSION)
try:
f = atomic_ofstream(self.filename, mode="wb")
except EnvironmentError:
pass
else:
if self._json_write:
f.write(
_unicode_encode(
json.dumps(d, **self._json_write_opts),
encoding=_encodings["repo.content"],
errors="strict",
))
else:
pickle.dump(d, f, protocol=2)
f.close()
apply_secpass_permissions(self.filename,
uid=uid,
gid=portage_gid,
mode=0o644)
self._clean_data = copy.deepcopy(d)
def commit(self):
if not self.filename:
return
d = {}
d.update(self)
# Only commit if the internal state has changed.
if d != self._clean_data:
d["version"] = str(portage.VERSION)
try:
f = atomic_ofstream(self.filename, mode='wb')
except EnvironmentError:
pass
else:
pickle.dump(d, f, protocol=2)
f.close()
apply_secpass_permissions(self.filename,
uid=uid, gid=portage_gid, mode=0o644)
self._clean_data = copy.deepcopy(d)
def commit(self):
if not self.filename:
return
d = {}
d.update(self)
# Only commit if the internal state has changed.
if d != self._clean_data:
d["version"] = VERSION
try:
f = atomic_ofstream(self.filename, mode='wb')
except EnvironmentError:
pass
else:
pickle.dump(d, f, protocol=2)
f.close()
apply_secpass_permissions(self.filename,
uid=uid,
gid=portage_gid,
mode=0o644)
self._clean_data = copy.deepcopy(d)
def commit(self):
if not self.filename:
return
d = {}
d.update(self)
# Only commit if the internal state has changed.
if d != self._clean_data:
d["version"] = str(portage.VERSION)
try:
f = atomic_ofstream(self.filename, mode='wb')
except EnvironmentError:
pass
else:
if self._json_write:
f.write(_unicode_encode(
json.dumps(d, **self._json_write_opts),
encoding=_encodings['repo.content'], errors='strict'))
else:
pickle.dump(d, f, protocol=2)
f.close()
apply_secpass_permissions(self.filename,
uid=uid, gid=portage_gid, mode=0o644)
self._clean_data = copy.deepcopy(d)
def __write_to_disk(self, d):
"""Private method used by the ``commit`` method."""
d["version"] = str(portage.VERSION)
try:
f = atomic_ofstream(self.filename, mode="wb")
except EnvironmentError:
pass
else:
if self._json_write:
f.write(
_unicode_encode(
json.dumps(d, **self._json_write_opts),
encoding=_encodings["repo.content"],
errors="strict",
))
else:
pickle.dump(d, f, protocol=2)
f.close()
apply_secpass_permissions(self.filename,
uid=uid,
gid=portage_gid,
mode=0o644)
self._clean_data = copy.deepcopy(d)
def prepare_build_dirs(myroot=None, settings=None, cleanup=False):
"""
The myroot parameter is ignored.
"""
myroot = None
if settings is None:
raise TypeError("settings argument is required")
mysettings = settings
clean_dirs = [mysettings["HOME"]]
# We enable cleanup when we want to make sure old cruft (such as the old
# environment) doesn't interfere with the current phase.
if cleanup and 'keeptemp' not in mysettings.features:
clean_dirs.append(mysettings["T"])
for clean_dir in clean_dirs:
try:
shutil.rmtree(clean_dir)
except OSError as oe:
if errno.ENOENT == oe.errno:
pass
elif errno.EPERM == oe.errno:
writemsg("%s\n" % oe, noiselevel=-1)
writemsg(_("Operation Not Permitted: rmtree('%s')\n") % \
clean_dir, noiselevel=-1)
return 1
else:
# Wrap with PermissionDenied if appropriate, so that callers
# display a short error message without a traceback.
_raise_exc(oe)
def makedirs(dir_path):
try:
os.makedirs(dir_path)
except OSError as oe:
if errno.EEXIST == oe.errno:
pass
elif errno.EPERM == oe.errno:
writemsg("%s\n" % oe, noiselevel=-1)
writemsg(_("Operation Not Permitted: makedirs('%s')\n") % \
dir_path, noiselevel=-1)
return False
else:
raise
return True
mysettings["PKG_LOGDIR"] = os.path.join(mysettings["T"], "logging")
mydirs = [os.path.dirname(mysettings["PORTAGE_BUILDDIR"])]
mydirs.append(os.path.dirname(mydirs[-1]))
try:
for mydir in mydirs:
ensure_dirs(mydir)
try:
apply_secpass_permissions(mydir,
gid=portage_gid, uid=portage_uid, mode=0o700, mask=0)
except PortageException:
if not os.path.isdir(mydir):
raise
for dir_key in ("PORTAGE_BUILDDIR", "HOME", "PKG_LOGDIR", "T"):
ensure_dirs(mysettings[dir_key], mode=0o755)
apply_secpass_permissions(mysettings[dir_key],
uid=portage_uid, gid=portage_gid)
except PermissionDenied as e:
writemsg(_("Permission Denied: %s\n") % str(e), noiselevel=-1)
return 1
except OperationNotPermitted as e:
writemsg(_("Operation Not Permitted: %s\n") % str(e), noiselevel=-1)
return 1
except FileNotFound as e:
writemsg(_("File Not Found: '%s'\n") % str(e), noiselevel=-1)
return 1
# Reset state for things like noauto and keepwork in FEATURES.
for x in ('.die_hooks',):
try:
os.unlink(os.path.join(mysettings['PORTAGE_BUILDDIR'], x))
except OSError:
pass
_prepare_workdir(mysettings)
if mysettings.get("EBUILD_PHASE") not in ("info", "fetch", "pretend"):
# Avoid spurious permissions adjustments when fetching with
# a temporary PORTAGE_TMPDIR setting (for fetchonly).
_prepare_features_dirs(mysettings)
def fetch(myuris, mysettings, listonly=0, fetchonly=0,
locks_in_subdir=".locks", use_locks=1, try_mirrors=1, digests=None,
allow_missing_digests=True):
"fetch files. Will use digest file if available."
if not myuris:
return 1
features = mysettings.features
restrict = mysettings.get("PORTAGE_RESTRICT","").split()
userfetch = secpass >= 2 and "userfetch" in features
userpriv = secpass >= 2 and "userpriv" in features
# 'nomirror' is bad/negative logic. You Restrict mirroring, not no-mirroring.
restrict_mirror = "mirror" in restrict or "nomirror" in restrict
if restrict_mirror:
if ("mirror" in features) and ("lmirror" not in features):
# lmirror should allow you to bypass mirror restrictions.
# XXX: This is not a good thing, and is temporary at best.
print(_(">>> \"mirror\" mode desired and \"mirror\" restriction found; skipping fetch."))
return 1
# Generally, downloading the same file repeatedly from
# every single available mirror is a waste of bandwidth
# and time, so there needs to be a cap.
checksum_failure_max_tries = 5
v = checksum_failure_max_tries
try:
v = int(mysettings.get("PORTAGE_FETCH_CHECKSUM_TRY_MIRRORS",
checksum_failure_max_tries))
except (ValueError, OverflowError):
writemsg(_("!!! Variable PORTAGE_FETCH_CHECKSUM_TRY_MIRRORS"
" contains non-integer value: '%s'\n") % \
mysettings["PORTAGE_FETCH_CHECKSUM_TRY_MIRRORS"], noiselevel=-1)
writemsg(_("!!! Using PORTAGE_FETCH_CHECKSUM_TRY_MIRRORS "
"default value: %s\n") % checksum_failure_max_tries,
noiselevel=-1)
v = checksum_failure_max_tries
if v < 1:
writemsg(_("!!! Variable PORTAGE_FETCH_CHECKSUM_TRY_MIRRORS"
" contains value less than 1: '%s'\n") % v, noiselevel=-1)
writemsg(_("!!! Using PORTAGE_FETCH_CHECKSUM_TRY_MIRRORS "
"default value: %s\n") % checksum_failure_max_tries,
noiselevel=-1)
v = checksum_failure_max_tries
checksum_failure_max_tries = v
del v
fetch_resume_size_default = "350K"
fetch_resume_size = mysettings.get("PORTAGE_FETCH_RESUME_MIN_SIZE")
if fetch_resume_size is not None:
fetch_resume_size = "".join(fetch_resume_size.split())
if not fetch_resume_size:
# If it's undefined or empty, silently use the default.
fetch_resume_size = fetch_resume_size_default
match = _fetch_resume_size_re.match(fetch_resume_size)
if match is None or \
(match.group(2).upper() not in _size_suffix_map):
writemsg(_("!!! Variable PORTAGE_FETCH_RESUME_MIN_SIZE"
" contains an unrecognized format: '%s'\n") % \
mysettings["PORTAGE_FETCH_RESUME_MIN_SIZE"], noiselevel=-1)
writemsg(_("!!! Using PORTAGE_FETCH_RESUME_MIN_SIZE "
"default value: %s\n") % fetch_resume_size_default,
noiselevel=-1)
fetch_resume_size = None
if fetch_resume_size is None:
fetch_resume_size = fetch_resume_size_default
match = _fetch_resume_size_re.match(fetch_resume_size)
fetch_resume_size = int(match.group(1)) * \
2 ** _size_suffix_map[match.group(2).upper()]
# Behave like the package has RESTRICT="primaryuri" after a
# couple of checksum failures, to increase the probablility
# of success before checksum_failure_max_tries is reached.
checksum_failure_primaryuri = 2
thirdpartymirrors = mysettings.thirdpartymirrors()
# In the background parallel-fetch process, it's safe to skip checksum
# verification of pre-existing files in $DISTDIR that have the correct
# file size. The parent process will verify their checksums prior to
# the unpack phase.
parallel_fetchonly = "PORTAGE_PARALLEL_FETCHONLY" in mysettings
if parallel_fetchonly:
fetchonly = 1
check_config_instance(mysettings)
custommirrors = grabdict(os.path.join(mysettings["PORTAGE_CONFIGROOT"],
CUSTOM_MIRRORS_FILE), recursive=1)
mymirrors=[]
if listonly or ("distlocks" not in features):
use_locks = 0
fetch_to_ro = 0
if "skiprocheck" in features:
fetch_to_ro = 1
if not os.access(mysettings["DISTDIR"],os.W_OK) and fetch_to_ro:
if use_locks:
writemsg(colorize("BAD",
_("!!! For fetching to a read-only filesystem, "
"locking should be turned off.\n")), noiselevel=-1)
writemsg(_("!!! This can be done by adding -distlocks to "
"FEATURES in /etc/make.conf\n"), noiselevel=-1)
# use_locks = 0
# local mirrors are always added
if "local" in custommirrors:
mymirrors += custommirrors["local"]
if restrict_mirror:
# We don't add any mirrors.
pass
else:
if try_mirrors:
mymirrors += [x.rstrip("/") for x in mysettings["GENTOO_MIRRORS"].split() if x]
hash_filter = _hash_filter(mysettings.get("PORTAGE_CHECKSUM_FILTER", ""))
if hash_filter.transparent:
hash_filter = None
skip_manifest = mysettings.get("EBUILD_SKIP_MANIFEST") == "1"
if skip_manifest:
allow_missing_digests = True
pkgdir = mysettings.get("O")
if digests is None and not (pkgdir is None or skip_manifest):
mydigests = mysettings.repositories.get_repo_for_location(
os.path.dirname(os.path.dirname(pkgdir))).load_manifest(
pkgdir, mysettings["DISTDIR"]).getTypeDigests("DIST")
elif digests is None or skip_manifest:
# no digests because fetch was not called for a specific package
mydigests = {}
else:
mydigests = digests
ro_distdirs = [x for x in \
shlex_split(mysettings.get("PORTAGE_RO_DISTDIRS", "")) \
if os.path.isdir(x)]
fsmirrors = []
for x in range(len(mymirrors)-1,-1,-1):
if mymirrors[x] and mymirrors[x][0]=='/':
fsmirrors += [mymirrors[x]]
del mymirrors[x]
restrict_fetch = "fetch" in restrict
force_mirror = "force-mirror" in features and not restrict_mirror
custom_local_mirrors = custommirrors.get("local", [])
if restrict_fetch:
# With fetch restriction, a normal uri may only be fetched from
# custom local mirrors (if available). A mirror:// uri may also
# be fetched from specific mirrors (effectively overriding fetch
# restriction, but only for specific mirrors).
locations = custom_local_mirrors
else:
locations = mymirrors
file_uri_tuples = []
# Check for 'items' attribute since OrderedDict is not a dict.
if hasattr(myuris, 'items'):
for myfile, uri_set in myuris.items():
for myuri in uri_set:
file_uri_tuples.append((myfile, myuri))
else:
for myuri in myuris:
file_uri_tuples.append((os.path.basename(myuri), myuri))
filedict = OrderedDict()
primaryuri_dict = {}
thirdpartymirror_uris = {}
for myfile, myuri in file_uri_tuples:
if myfile not in filedict:
filedict[myfile]=[]
for y in range(0,len(locations)):
filedict[myfile].append(locations[y]+"/distfiles/"+myfile)
if myuri[:9]=="mirror://":
eidx = myuri.find("/", 9)
if eidx != -1:
mirrorname = myuri[9:eidx]
path = myuri[eidx+1:]
# Try user-defined mirrors first
if mirrorname in custommirrors:
for cmirr in custommirrors[mirrorname]:
filedict[myfile].append(
cmirr.rstrip("/") + "/" + path)
# now try the official mirrors
if mirrorname in thirdpartymirrors:
uris = [locmirr.rstrip("/") + "/" + path \
for locmirr in thirdpartymirrors[mirrorname]]
random.shuffle(uris)
filedict[myfile].extend(uris)
thirdpartymirror_uris.setdefault(myfile, []).extend(uris)
if not filedict[myfile]:
writemsg(_("No known mirror by the name: %s\n") % (mirrorname))
else:
writemsg(_("Invalid mirror definition in SRC_URI:\n"), noiselevel=-1)
writemsg(" %s\n" % (myuri), noiselevel=-1)
else:
if restrict_fetch or force_mirror:
# Only fetch from specific mirrors is allowed.
continue
primaryuris = primaryuri_dict.get(myfile)
if primaryuris is None:
primaryuris = []
primaryuri_dict[myfile] = primaryuris
primaryuris.append(myuri)
# Order primaryuri_dict values to match that in SRC_URI.
for uris in primaryuri_dict.values():
uris.reverse()
# Prefer thirdpartymirrors over normal mirrors in cases when
# the file does not yet exist on the normal mirrors.
for myfile, uris in thirdpartymirror_uris.items():
primaryuri_dict.setdefault(myfile, []).extend(uris)
# Now merge primaryuri values into filedict (includes mirrors
# explicitly referenced in SRC_URI).
if "primaryuri" in restrict:
for myfile, uris in filedict.items():
filedict[myfile] = primaryuri_dict.get(myfile, []) + uris
else:
for myfile in filedict:
filedict[myfile] += primaryuri_dict.get(myfile, [])
can_fetch=True
if listonly:
can_fetch = False
if can_fetch and not fetch_to_ro:
global _userpriv_test_write_file_cache
dirmode = 0o070
filemode = 0o60
modemask = 0o2
dir_gid = portage_gid
if "FAKED_MODE" in mysettings:
# When inside fakeroot, directories with portage's gid appear
# to have root's gid. Therefore, use root's gid instead of
# portage's gid to avoid spurrious permissions adjustments
# when inside fakeroot.
dir_gid = 0
distdir_dirs = [""]
try:
for x in distdir_dirs:
mydir = os.path.join(mysettings["DISTDIR"], x)
write_test_file = os.path.join(
mydir, ".__portage_test_write__")
try:
st = os.stat(mydir)
except OSError:
st = None
if st is not None and stat.S_ISDIR(st.st_mode):
if not (userfetch or userpriv):
continue
if _userpriv_test_write_file(mysettings, write_test_file):
continue
_userpriv_test_write_file_cache.pop(write_test_file, None)
if ensure_dirs(mydir, gid=dir_gid, mode=dirmode, mask=modemask):
if st is None:
# The directory has just been created
# and therefore it must be empty.
continue
writemsg(_("Adjusting permissions recursively: '%s'\n") % mydir,
noiselevel=-1)
def onerror(e):
raise # bail out on the first error that occurs during recursion
if not apply_recursive_permissions(mydir,
gid=dir_gid, dirmode=dirmode, dirmask=modemask,
filemode=filemode, filemask=modemask, onerror=onerror):
raise OperationNotPermitted(
_("Failed to apply recursive permissions for the portage group."))
except PortageException as e:
if not os.path.isdir(mysettings["DISTDIR"]):
writemsg("!!! %s\n" % str(e), noiselevel=-1)
writemsg(_("!!! Directory Not Found: DISTDIR='%s'\n") % mysettings["DISTDIR"], noiselevel=-1)
writemsg(_("!!! Fetching will fail!\n"), noiselevel=-1)
if can_fetch and \
not fetch_to_ro and \
not os.access(mysettings["DISTDIR"], os.W_OK):
writemsg(_("!!! No write access to '%s'\n") % mysettings["DISTDIR"],
noiselevel=-1)
can_fetch = False
distdir_writable = can_fetch and not fetch_to_ro
failed_files = set()
restrict_fetch_msg = False
for myfile in filedict:
"""
fetched status
0 nonexistent
1 partially downloaded
2 completely downloaded
"""
fetched = 0
orig_digests = mydigests.get(myfile, {})
if not (allow_missing_digests or listonly):
verifiable_hash_types = set(orig_digests).intersection(hashfunc_map)
verifiable_hash_types.discard("size")
if not verifiable_hash_types:
expected = set(hashfunc_map)
expected.discard("size")
expected = " ".join(sorted(expected))
got = set(orig_digests)
got.discard("size")
got = " ".join(sorted(got))
reason = (_("Insufficient data for checksum verification"),
got, expected)
writemsg(_("!!! Fetched file: %s VERIFY FAILED!\n") % myfile,
noiselevel=-1)
writemsg(_("!!! Reason: %s\n") % reason[0],
noiselevel=-1)
writemsg(_("!!! Got: %s\n!!! Expected: %s\n") % \
(reason[1], reason[2]), noiselevel=-1)
if fetchonly:
failed_files.add(myfile)
continue
else:
return 0
size = orig_digests.get("size")
if size == 0:
# Zero-byte distfiles are always invalid, so discard their digests.
del mydigests[myfile]
orig_digests.clear()
size = None
pruned_digests = orig_digests
if parallel_fetchonly:
pruned_digests = {}
if size is not None:
pruned_digests["size"] = size
myfile_path = os.path.join(mysettings["DISTDIR"], myfile)
has_space = True
has_space_superuser = True
file_lock = None
if listonly:
writemsg_stdout("\n", noiselevel=-1)
else:
# check if there is enough space in DISTDIR to completely store myfile
# overestimate the filesize so we aren't bitten by FS overhead
vfs_stat = None
if size is not None and hasattr(os, "statvfs"):
try:
vfs_stat = os.statvfs(mysettings["DISTDIR"])
except OSError as e:
writemsg_level("!!! statvfs('%s'): %s\n" %
(mysettings["DISTDIR"], e),
noiselevel=-1, level=logging.ERROR)
del e
if vfs_stat is not None:
try:
mysize = os.stat(myfile_path).st_size
except OSError as e:
if e.errno not in (errno.ENOENT, errno.ESTALE):
raise
del e
mysize = 0
if (size - mysize + vfs_stat.f_bsize) >= \
(vfs_stat.f_bsize * vfs_stat.f_bavail):
if (size - mysize + vfs_stat.f_bsize) >= \
(vfs_stat.f_bsize * vfs_stat.f_bfree):
has_space_superuser = False
if not has_space_superuser:
has_space = False
elif secpass < 2:
has_space = False
elif userfetch:
has_space = False
if distdir_writable and use_locks:
lock_kwargs = {}
if fetchonly:
lock_kwargs["flags"] = os.O_NONBLOCK
try:
file_lock = lockfile(myfile_path,
wantnewlockfile=1, **lock_kwargs)
except TryAgain:
writemsg(_(">>> File '%s' is already locked by "
"another fetcher. Continuing...\n") % myfile,
noiselevel=-1)
continue
try:
if not listonly:
eout = EOutput()
eout.quiet = mysettings.get("PORTAGE_QUIET") == "1"
match, mystat = _check_distfile(
myfile_path, pruned_digests, eout, hash_filter=hash_filter)
if match:
# Skip permission adjustment for symlinks, since we don't
# want to modify anything outside of the primary DISTDIR,
# and symlinks typically point to PORTAGE_RO_DISTDIRS.
if distdir_writable and not os.path.islink(myfile_path):
try:
apply_secpass_permissions(myfile_path,
gid=portage_gid, mode=0o664, mask=0o2,
stat_cached=mystat)
except PortageException as e:
if not os.access(myfile_path, os.R_OK):
writemsg(_("!!! Failed to adjust permissions:"
" %s\n") % str(e), noiselevel=-1)
del e
continue
if distdir_writable and mystat is None:
# Remove broken symlinks if necessary.
try:
os.unlink(myfile_path)
except OSError:
pass
if mystat is not None:
if stat.S_ISDIR(mystat.st_mode):
writemsg_level(
_("!!! Unable to fetch file since "
"a directory is in the way: \n"
"!!! %s\n") % myfile_path,
level=logging.ERROR, noiselevel=-1)
return 0
if mystat.st_size == 0:
if distdir_writable:
try:
os.unlink(myfile_path)
except OSError:
pass
elif distdir_writable:
if mystat.st_size < fetch_resume_size and \
mystat.st_size < size:
# If the file already exists and the size does not
# match the existing digests, it may be that the
# user is attempting to update the digest. In this
# case, the digestgen() function will advise the
# user to use `ebuild --force foo.ebuild manifest`
# in order to force the old digests to be replaced.
# Since the user may want to keep this file, rename
# it instead of deleting it.
writemsg(_(">>> Renaming distfile with size "
"%d (smaller than " "PORTAGE_FETCH_RESU"
"ME_MIN_SIZE)\n") % mystat.st_size)
temp_filename = \
_checksum_failure_temp_file(
mysettings["DISTDIR"], myfile)
writemsg_stdout(_("Refetching... "
"File renamed to '%s'\n\n") % \
temp_filename, noiselevel=-1)
elif mystat.st_size >= size:
temp_filename = \
_checksum_failure_temp_file(
mysettings["DISTDIR"], myfile)
writemsg_stdout(_("Refetching... "
"File renamed to '%s'\n\n") % \
temp_filename, noiselevel=-1)
if distdir_writable and ro_distdirs:
readonly_file = None
for x in ro_distdirs:
filename = os.path.join(x, myfile)
match, mystat = _check_distfile(
filename, pruned_digests, eout, hash_filter=hash_filter)
if match:
readonly_file = filename
break
if readonly_file is not None:
try:
os.unlink(myfile_path)
except OSError as e:
if e.errno not in (errno.ENOENT, errno.ESTALE):
raise
del e
os.symlink(readonly_file, myfile_path)
continue
# this message is shown only after we know that
# the file is not already fetched
if not has_space:
writemsg(_("!!! Insufficient space to store %s in %s\n") % \
(myfile, mysettings["DISTDIR"]), noiselevel=-1)
if has_space_superuser:
writemsg(_("!!! Insufficient privileges to use "
"remaining space.\n"), noiselevel=-1)
if userfetch:
writemsg(_("!!! You may set FEATURES=\"-userfetch\""
" in /etc/make.conf in order to fetch with\n"
"!!! superuser privileges.\n"), noiselevel=-1)
if fsmirrors and not os.path.exists(myfile_path) and has_space:
for mydir in fsmirrors:
mirror_file = os.path.join(mydir, myfile)
try:
shutil.copyfile(mirror_file, myfile_path)
writemsg(_("Local mirror has file: %s\n") % myfile)
break
except (IOError, OSError) as e:
if e.errno not in (errno.ENOENT, errno.ESTALE):
raise
del e
try:
mystat = os.stat(myfile_path)
except OSError as e:
if e.errno not in (errno.ENOENT, errno.ESTALE):
raise
del e
else:
# Skip permission adjustment for symlinks, since we don't
# want to modify anything outside of the primary DISTDIR,
# and symlinks typically point to PORTAGE_RO_DISTDIRS.
if not os.path.islink(myfile_path):
try:
apply_secpass_permissions(myfile_path,
gid=portage_gid, mode=0o664, mask=0o2,
stat_cached=mystat)
except PortageException as e:
if not os.access(myfile_path, os.R_OK):
writemsg(_("!!! Failed to adjust permissions:"
" %s\n") % (e,), noiselevel=-1)
# If the file is empty then it's obviously invalid. Remove
# the empty file and try to download if possible.
if mystat.st_size == 0:
if distdir_writable:
try:
os.unlink(myfile_path)
except EnvironmentError:
pass
elif myfile not in mydigests:
# We don't have a digest, but the file exists. We must
# assume that it is fully downloaded.
continue
else:
if mystat.st_size < mydigests[myfile]["size"] and \
not restrict_fetch:
fetched = 1 # Try to resume this download.
elif parallel_fetchonly and \
mystat.st_size == mydigests[myfile]["size"]:
eout = EOutput()
eout.quiet = \
mysettings.get("PORTAGE_QUIET") == "1"
eout.ebegin(
"%s size ;-)" % (myfile, ))
eout.eend(0)
continue
else:
digests = _filter_unaccelarated_hashes(mydigests[myfile])
if hash_filter is not None:
digests = _apply_hash_filter(digests, hash_filter)
verified_ok, reason = verify_all(myfile_path, digests)
if not verified_ok:
writemsg(_("!!! Previously fetched"
" file: '%s'\n") % myfile, noiselevel=-1)
writemsg(_("!!! Reason: %s\n") % reason[0],
noiselevel=-1)
writemsg(_("!!! Got: %s\n"
"!!! Expected: %s\n") % \
(reason[1], reason[2]), noiselevel=-1)
if reason[0] == _("Insufficient data for checksum verification"):
return 0
if distdir_writable:
temp_filename = \
_checksum_failure_temp_file(
mysettings["DISTDIR"], myfile)
writemsg_stdout(_("Refetching... "
"File renamed to '%s'\n\n") % \
temp_filename, noiselevel=-1)
else:
eout = EOutput()
eout.quiet = \
mysettings.get("PORTAGE_QUIET", None) == "1"
if digests:
digests = list(digests)
digests.sort()
eout.ebegin(
"%s %s ;-)" % (myfile, " ".join(digests)))
eout.eend(0)
continue # fetch any remaining files
# Create a reversed list since that is optimal for list.pop().
uri_list = filedict[myfile][:]
uri_list.reverse()
checksum_failure_count = 0
tried_locations = set()
while uri_list:
loc = uri_list.pop()
# Eliminate duplicates here in case we've switched to
# "primaryuri" mode on the fly due to a checksum failure.
if loc in tried_locations:
continue
tried_locations.add(loc)
if listonly:
writemsg_stdout(loc+" ", noiselevel=-1)
continue
# allow different fetchcommands per protocol
protocol = loc[0:loc.find("://")]
global_config_path = GLOBAL_CONFIG_PATH
if mysettings['EPREFIX']:
global_config_path = os.path.join(mysettings['EPREFIX'],
GLOBAL_CONFIG_PATH.lstrip(os.sep))
missing_file_param = False
fetchcommand_var = "FETCHCOMMAND_" + protocol.upper()
fetchcommand = mysettings.get(fetchcommand_var)
if fetchcommand is None:
fetchcommand_var = "FETCHCOMMAND"
fetchcommand = mysettings.get(fetchcommand_var)
if fetchcommand is None:
writemsg_level(
_("!!! %s is unset. It should "
"have been defined in\n!!! %s/make.globals.\n") \
% (fetchcommand_var, global_config_path),
level=logging.ERROR, noiselevel=-1)
return 0
if "${FILE}" not in fetchcommand:
writemsg_level(
_("!!! %s does not contain the required ${FILE}"
" parameter.\n") % fetchcommand_var,
level=logging.ERROR, noiselevel=-1)
missing_file_param = True
resumecommand_var = "RESUMECOMMAND_" + protocol.upper()
resumecommand = mysettings.get(resumecommand_var)
if resumecommand is None:
resumecommand_var = "RESUMECOMMAND"
resumecommand = mysettings.get(resumecommand_var)
if resumecommand is None:
writemsg_level(
_("!!! %s is unset. It should "
"have been defined in\n!!! %s/make.globals.\n") \
% (resumecommand_var, global_config_path),
level=logging.ERROR, noiselevel=-1)
return 0
if "${FILE}" not in resumecommand:
writemsg_level(
_("!!! %s does not contain the required ${FILE}"
" parameter.\n") % resumecommand_var,
level=logging.ERROR, noiselevel=-1)
missing_file_param = True
if missing_file_param:
writemsg_level(
_("!!! Refer to the make.conf(5) man page for "
"information about how to\n!!! correctly specify "
"FETCHCOMMAND and RESUMECOMMAND.\n"),
level=logging.ERROR, noiselevel=-1)
if myfile != os.path.basename(loc):
return 0
if not can_fetch:
if fetched != 2:
try:
mysize = os.stat(myfile_path).st_size
except OSError as e:
if e.errno not in (errno.ENOENT, errno.ESTALE):
raise
del e
mysize = 0
if mysize == 0:
writemsg(_("!!! File %s isn't fetched but unable to get it.\n") % myfile,
noiselevel=-1)
elif size is None or size > mysize:
writemsg(_("!!! File %s isn't fully fetched, but unable to complete it\n") % myfile,
noiselevel=-1)
else:
writemsg(_("!!! File %s is incorrect size, "
"but unable to retry.\n") % myfile, noiselevel=-1)
return 0
else:
continue
if fetched != 2 and has_space:
#we either need to resume or start the download
if fetched == 1:
try:
mystat = os.stat(myfile_path)
except OSError as e:
if e.errno not in (errno.ENOENT, errno.ESTALE):
raise
del e
fetched = 0
else:
if mystat.st_size < fetch_resume_size:
writemsg(_(">>> Deleting distfile with size "
"%d (smaller than " "PORTAGE_FETCH_RESU"
"ME_MIN_SIZE)\n") % mystat.st_size)
try:
os.unlink(myfile_path)
except OSError as e:
if e.errno not in \
(errno.ENOENT, errno.ESTALE):
raise
del e
fetched = 0
if fetched == 1:
#resume mode:
writemsg(_(">>> Resuming download...\n"))
locfetch=resumecommand
command_var = resumecommand_var
else:
#normal mode:
locfetch=fetchcommand
command_var = fetchcommand_var
writemsg_stdout(_(">>> Downloading '%s'\n") % \
_hide_url_passwd(loc))
variables = {
"DISTDIR": mysettings["DISTDIR"],
"URI": loc,
"FILE": myfile
}
myfetch = shlex_split(locfetch)
myfetch = [varexpand(x, mydict=variables) for x in myfetch]
myret = -1
try:
myret = _spawn_fetch(mysettings, myfetch)
finally:
try:
apply_secpass_permissions(myfile_path,
gid=portage_gid, mode=0o664, mask=0o2)
except FileNotFound:
pass
except PortageException as e:
if not os.access(myfile_path, os.R_OK):
writemsg(_("!!! Failed to adjust permissions:"
" %s\n") % str(e), noiselevel=-1)
del e
# If the file is empty then it's obviously invalid. Don't
# trust the return value from the fetcher. Remove the
# empty file and try to download again.
try:
if os.stat(myfile_path).st_size == 0:
os.unlink(myfile_path)
fetched = 0
continue
except EnvironmentError:
pass
if mydigests is not None and myfile in mydigests:
try:
mystat = os.stat(myfile_path)
except OSError as e:
if e.errno not in (errno.ENOENT, errno.ESTALE):
raise
del e
fetched = 0
else:
if stat.S_ISDIR(mystat.st_mode):
# This can happen if FETCHCOMMAND erroneously
# contains wget's -P option where it should
# instead have -O.
writemsg_level(
_("!!! The command specified in the "
"%s variable appears to have\n!!! "
"created a directory instead of a "
"normal file.\n") % command_var,
level=logging.ERROR, noiselevel=-1)
writemsg_level(
_("!!! Refer to the make.conf(5) "
"man page for information about how "
"to\n!!! correctly specify "
"FETCHCOMMAND and RESUMECOMMAND.\n"),
level=logging.ERROR, noiselevel=-1)
return 0
# no exception? file exists. let digestcheck() report
# an appropriately for size or checksum errors
# If the fetcher reported success and the file is
# too small, it's probably because the digest is
# bad (upstream changed the distfile). In this
# case we don't want to attempt to resume. Show a
# digest verification failure to that the user gets
# a clue about what just happened.
if myret != os.EX_OK and \
mystat.st_size < mydigests[myfile]["size"]:
# Fetch failed... Try the next one... Kill 404 files though.
if (mystat[stat.ST_SIZE]<100000) and (len(myfile)>4) and not ((myfile[-5:]==".html") or (myfile[-4:]==".htm")):
html404=re.compile("<title>.*(not found|404).*</title>",re.I|re.M)
with io.open(
_unicode_encode(myfile_path,
encoding=_encodings['fs'], errors='strict'),
mode='r', encoding=_encodings['content'], errors='replace'
) as f:
if html404.search(f.read()):
try:
os.unlink(mysettings["DISTDIR"]+"/"+myfile)
writemsg(_(">>> Deleting invalid distfile. (Improper 404 redirect from server.)\n"))
fetched = 0
continue
except (IOError, OSError):
pass
fetched = 1
continue
if True:
# File is the correct size--check the checksums for the fetched
# file NOW, for those users who don't have a stable/continuous
# net connection. This way we have a chance to try to download
# from another mirror...
digests = _filter_unaccelarated_hashes(mydigests[myfile])
if hash_filter is not None:
digests = _apply_hash_filter(digests, hash_filter)
verified_ok, reason = verify_all(myfile_path, digests)
if not verified_ok:
writemsg(_("!!! Fetched file: %s VERIFY FAILED!\n") % myfile,
noiselevel=-1)
writemsg(_("!!! Reason: %s\n") % reason[0],
noiselevel=-1)
writemsg(_("!!! Got: %s\n!!! Expected: %s\n") % \
(reason[1], reason[2]), noiselevel=-1)
if reason[0] == _("Insufficient data for checksum verification"):
return 0
temp_filename = \
_checksum_failure_temp_file(
mysettings["DISTDIR"], myfile)
writemsg_stdout(_("Refetching... "
"File renamed to '%s'\n\n") % \
temp_filename, noiselevel=-1)
fetched=0
checksum_failure_count += 1
if checksum_failure_count == \
checksum_failure_primaryuri:
# Switch to "primaryuri" mode in order
# to increase the probablility of
# of success.
primaryuris = \
primaryuri_dict.get(myfile)
if primaryuris:
uri_list.extend(
reversed(primaryuris))
if checksum_failure_count >= \
checksum_failure_max_tries:
break
else:
eout = EOutput()
eout.quiet = mysettings.get("PORTAGE_QUIET", None) == "1"
if digests:
eout.ebegin("%s %s ;-)" % \
(myfile, " ".join(sorted(digests))))
eout.eend(0)
fetched=2
break
else:
if not myret:
fetched=2
break
elif mydigests!=None:
writemsg(_("No digest file available and download failed.\n\n"),
noiselevel=-1)
finally:
if use_locks and file_lock:
unlockfile(file_lock)
file_lock = None
if listonly:
writemsg_stdout("\n", noiselevel=-1)
if fetched != 2:
if restrict_fetch and not restrict_fetch_msg:
restrict_fetch_msg = True
msg = _("\n!!! %s/%s"
" has fetch restriction turned on.\n"
"!!! This probably means that this "
"ebuild's files must be downloaded\n"
"!!! manually. See the comments in"
" the ebuild for more information.\n\n") % \
(mysettings["CATEGORY"], mysettings["PF"])
writemsg_level(msg,
level=logging.ERROR, noiselevel=-1)
elif restrict_fetch:
pass
elif listonly:
pass
elif not filedict[myfile]:
writemsg(_("Warning: No mirrors available for file"
" '%s'\n") % (myfile), noiselevel=-1)
else:
writemsg(_("!!! Couldn't download '%s'. Aborting.\n") % myfile,
noiselevel=-1)
if listonly:
failed_files.add(myfile)
continue
elif fetchonly:
failed_files.add(myfile)
continue
return 0
if failed_files:
return 0
return 1
def _prepare_workdir(mysettings):
workdir_mode = 0o700
try:
mode = mysettings["PORTAGE_WORKDIR_MODE"]
if mode.isdigit():
parsed_mode = int(mode, 8)
elif mode == "":
raise KeyError()
else:
raise ValueError()
if parsed_mode & 0o7777 != parsed_mode:
raise ValueError("Invalid file mode: %s" % mode)
else:
workdir_mode = parsed_mode
except KeyError as e:
writemsg(
_("!!! PORTAGE_WORKDIR_MODE is unset, using %s.\n") %
oct(workdir_mode))
except ValueError as e:
if len(str(e)) > 0:
writemsg("%s\n" % e)
writemsg(_("!!! Unable to parse PORTAGE_WORKDIR_MODE='%s', using %s.\n") % \
(mysettings["PORTAGE_WORKDIR_MODE"], oct(workdir_mode)))
mysettings["PORTAGE_WORKDIR_MODE"] = oct(workdir_mode).replace('o', '')
try:
apply_secpass_permissions(mysettings["WORKDIR"],
uid=portage_uid,
gid=portage_gid,
mode=workdir_mode)
except FileNotFound:
pass # ebuild.sh will create it
if mysettings.get("PORT_LOGDIR", "") == "":
while "PORT_LOGDIR" in mysettings:
del mysettings["PORT_LOGDIR"]
if "PORT_LOGDIR" in mysettings:
try:
modified = ensure_dirs(mysettings["PORT_LOGDIR"])
if modified:
apply_secpass_permissions(mysettings["PORT_LOGDIR"],
uid=portage_uid,
gid=portage_gid,
mode=0o2770)
except PortageException as e:
writemsg("!!! %s\n" % str(e), noiselevel=-1)
writemsg(_("!!! Permission issues with PORT_LOGDIR='%s'\n") % \
mysettings["PORT_LOGDIR"], noiselevel=-1)
writemsg(_("!!! Disabling logging.\n"), noiselevel=-1)
while "PORT_LOGDIR" in mysettings:
del mysettings["PORT_LOGDIR"]
if "PORT_LOGDIR" in mysettings and \
os.access(mysettings["PORT_LOGDIR"], os.W_OK):
logid_path = os.path.join(mysettings["PORTAGE_BUILDDIR"], ".logid")
if not os.path.exists(logid_path):
open(_unicode_encode(logid_path), 'w')
logid_time = _unicode_decode(time.strftime(
"%Y%m%d-%H%M%S", time.gmtime(os.stat(logid_path).st_mtime)),
encoding=_encodings['content'],
errors='replace')
if "split-log" in mysettings.features:
mysettings["PORTAGE_LOG_FILE"] = os.path.join(
mysettings["PORT_LOGDIR"], "build", "%s/%s:%s.log" % \
(mysettings["CATEGORY"], mysettings["PF"], logid_time))
else:
mysettings["PORTAGE_LOG_FILE"] = os.path.join(
mysettings["PORT_LOGDIR"], "%s:%s:%s.log" % \
(mysettings["CATEGORY"], mysettings["PF"], logid_time))
ensure_dirs(os.path.dirname(mysettings["PORTAGE_LOG_FILE"]))
else:
# NOTE: When sesandbox is enabled, the local SELinux security policies
# may not allow output to be piped out of the sesandbox domain. The
# current policy will allow it to work when a pty is available, but
# not through a normal pipe. See bug #162404.
mysettings["PORTAGE_LOG_FILE"] = os.path.join(mysettings["T"],
"build.log")
def prepare_build_dirs(myroot, mysettings, cleanup):
clean_dirs = [mysettings["HOME"]]
# We enable cleanup when we want to make sure old cruft (such as the old
# environment) doesn't interfere with the current phase.
if cleanup:
clean_dirs.append(mysettings["T"])
for clean_dir in clean_dirs:
try:
shutil.rmtree(clean_dir)
except OSError as oe:
if errno.ENOENT == oe.errno:
pass
elif errno.EPERM == oe.errno:
writemsg("%s\n" % oe, noiselevel=-1)
writemsg(_("Operation Not Permitted: rmtree('%s')\n") % \
clean_dir, noiselevel=-1)
return 1
else:
raise
def makedirs(dir_path):
try:
os.makedirs(dir_path)
except OSError as oe:
if errno.EEXIST == oe.errno:
pass
elif errno.EPERM == oe.errno:
writemsg("%s\n" % oe, noiselevel=-1)
writemsg(_("Operation Not Permitted: makedirs('%s')\n") % \
dir_path, noiselevel=-1)
return False
else:
raise
return True
mysettings["PKG_LOGDIR"] = os.path.join(mysettings["T"], "logging")
mydirs = [os.path.dirname(mysettings["PORTAGE_BUILDDIR"])]
mydirs.append(os.path.dirname(mydirs[-1]))
try:
for mydir in mydirs:
ensure_dirs(mydir)
apply_secpass_permissions(mydir,
gid=portage_gid,
uid=portage_uid,
mode=0o70,
mask=0)
for dir_key in ("PORTAGE_BUILDDIR", "HOME", "PKG_LOGDIR", "T"):
"""These directories don't necessarily need to be group writable.
However, the setup phase is commonly run as a privileged user prior
to the other phases being run by an unprivileged user. Currently,
we use the portage group to ensure that the unprivleged user still
has write access to these directories in any case."""
ensure_dirs(mysettings[dir_key], mode=0o775)
apply_secpass_permissions(mysettings[dir_key],
uid=portage_uid,
gid=portage_gid)
except PermissionDenied as e:
writemsg(_("Permission Denied: %s\n") % str(e), noiselevel=-1)
return 1
except OperationNotPermitted as e:
writemsg(_("Operation Not Permitted: %s\n") % str(e), noiselevel=-1)
return 1
except FileNotFound as e:
writemsg(_("File Not Found: '%s'\n") % str(e), noiselevel=-1)
return 1
# Reset state for things like noauto and keepwork in FEATURES.
for x in ('.die_hooks', ):
try:
os.unlink(os.path.join(mysettings['PORTAGE_BUILDDIR'], x))
except OSError:
pass
_prepare_workdir(mysettings)
if mysettings.get('EBUILD_PHASE') != 'fetch':
# Avoid spurious permissions adjustments when fetching with
# a temporary PORTAGE_TMPDIR setting (for fetchonly).
_prepare_features_dirs(mysettings)
def updateItems(self, repoid):
"""
Figure out which news items from NEWS_PATH are both unread and relevant to
the user (according to the GLEP 42 standards of relevancy). Then add these
items into the news.repoid.unread file.
"""
# Ensure that the unread path exists and is writable.
try:
ensure_dirs(self.unread_path,
uid=self._uid,
gid=self._gid,
mode=self._dir_mode,
mask=self._mode_mask)
except (OperationNotPermitted, PermissionDenied):
return
if not os.access(self.unread_path, os.W_OK):
return
news_dir = self._news_dir(repoid)
try:
news = _os.listdir(
_unicode_encode(news_dir,
encoding=_encodings['fs'],
errors='strict'))
except OSError:
return
skip_filename = self._skip_filename(repoid)
unread_filename = self._unread_filename(repoid)
unread_lock = lockfile(unread_filename, wantnewlockfile=1)
try:
try:
unread = set(grabfile(unread_filename))
unread_orig = unread.copy()
skip = set(grabfile(skip_filename))
skip_orig = skip.copy()
except PermissionDenied:
return
for itemid in news:
try:
itemid = _unicode_decode(itemid,
encoding=_encodings['fs'],
errors='strict')
except UnicodeDecodeError:
itemid = _unicode_decode(itemid,
encoding=_encodings['fs'],
errors='replace')
writemsg_level(
_("!!! Invalid encoding in news item name: '%s'\n") % \
itemid, level=logging.ERROR, noiselevel=-1)
continue
if itemid in skip:
continue
filename = os.path.join(
news_dir, itemid, itemid + "." + self.language_id + ".txt")
if not os.path.isfile(filename):
continue
item = NewsItem(filename, itemid)
if not item.isValid():
continue
if item.isRelevant(profile=self._profile_path,
config=self.config,
vardb=self.vdb):
unread.add(item.name)
skip.add(item.name)
if unread != unread_orig:
write_atomic(unread_filename,
"".join("%s\n" % x for x in sorted(unread)))
apply_secpass_permissions(unread_filename,
uid=self._uid,
gid=self._gid,
mode=self._file_mode,
mask=self._mode_mask)
if skip != skip_orig:
write_atomic(skip_filename,
"".join("%s\n" % x for x in sorted(skip)))
apply_secpass_permissions(skip_filename,
uid=self._uid,
gid=self._gid,
mode=self._file_mode,
mask=self._mode_mask)
finally:
unlockfile(unread_lock)
def _prepare_workdir(mysettings):
workdir_mode = 0o700
try:
mode = mysettings["PORTAGE_WORKDIR_MODE"]
if mode.isdigit():
parsed_mode = int(mode, 8)
elif mode == "":
raise KeyError()
else:
raise ValueError()
if parsed_mode & 0o7777 != parsed_mode:
raise ValueError("Invalid file mode: %s" % mode)
else:
workdir_mode = parsed_mode
except KeyError as e:
writemsg(_("!!! PORTAGE_WORKDIR_MODE is unset, using %s.\n") % oct(workdir_mode))
except ValueError as e:
if len(str(e)) > 0:
writemsg("%s\n" % e)
writemsg(_("!!! Unable to parse PORTAGE_WORKDIR_MODE='%s', using %s.\n") % \
(mysettings["PORTAGE_WORKDIR_MODE"], oct(workdir_mode)))
mysettings["PORTAGE_WORKDIR_MODE"] = oct(workdir_mode).replace('o', '')
try:
apply_secpass_permissions(mysettings["WORKDIR"],
uid=portage_uid, gid=portage_gid, mode=workdir_mode)
except FileNotFound:
pass # ebuild.sh will create it
if mysettings.get("PORT_LOGDIR", "") == "":
while "PORT_LOGDIR" in mysettings:
del mysettings["PORT_LOGDIR"]
if "PORT_LOGDIR" in mysettings:
try:
modified = ensure_dirs(mysettings["PORT_LOGDIR"])
if modified:
apply_secpass_permissions(mysettings["PORT_LOGDIR"],
uid=portage_uid, gid=portage_gid, mode=0o2770)
except PortageException as e:
writemsg("!!! %s\n" % str(e), noiselevel=-1)
writemsg(_("!!! Permission issues with PORT_LOGDIR='%s'\n") % \
mysettings["PORT_LOGDIR"], noiselevel=-1)
writemsg(_("!!! Disabling logging.\n"), noiselevel=-1)
while "PORT_LOGDIR" in mysettings:
del mysettings["PORT_LOGDIR"]
compress_log_ext = ''
if 'compress-build-logs' in mysettings.features:
compress_log_ext = '.gz'
if "PORT_LOGDIR" in mysettings and \
os.access(mysettings["PORT_LOGDIR"], os.W_OK):
logid_path = os.path.join(mysettings["PORTAGE_BUILDDIR"], ".logid")
if not os.path.exists(logid_path):
open(_unicode_encode(logid_path), 'w')
logid_time = _unicode_decode(time.strftime("%Y%m%d-%H%M%S",
time.gmtime(os.stat(logid_path).st_mtime)),
encoding=_encodings['content'], errors='replace')
if "split-log" in mysettings.features:
mysettings["PORTAGE_LOG_FILE"] = os.path.join(
mysettings["PORT_LOGDIR"], "build", "%s/%s:%s.log%s" % \
(mysettings["CATEGORY"], mysettings["PF"], logid_time,
compress_log_ext))
else:
mysettings["PORTAGE_LOG_FILE"] = os.path.join(
mysettings["PORT_LOGDIR"], "%s:%s:%s.log%s" % \
(mysettings["CATEGORY"], mysettings["PF"], logid_time,
compress_log_ext))
ensure_dirs(os.path.dirname(mysettings["PORTAGE_LOG_FILE"]))
else:
# NOTE: When sesandbox is enabled, the local SELinux security policies
# may not allow output to be piped out of the sesandbox domain. The
# current policy will allow it to work when a pty is available, but
# not through a normal pipe. See bug #162404.
mysettings["PORTAGE_LOG_FILE"] = os.path.join(
mysettings["T"], "build.log%s" % compress_log_ext)
def prepare_build_dirs(myroot=None, settings=None, cleanup=False):
"""
The myroot parameter is ignored.
"""
myroot = None
if settings is None:
raise TypeError("settings argument is required")
mysettings = settings
clean_dirs = [mysettings["HOME"]]
# We enable cleanup when we want to make sure old cruft (such as the old
# environment) doesn't interfere with the current phase.
if cleanup and 'keeptemp' not in mysettings.features:
clean_dirs.append(mysettings["T"])
for clean_dir in clean_dirs:
try:
shutil.rmtree(clean_dir)
except OSError as oe:
if errno.ENOENT == oe.errno:
pass
elif errno.EPERM == oe.errno:
writemsg("%s\n" % oe, noiselevel=-1)
writemsg(_("Operation Not Permitted: rmtree('%s')\n") % \
clean_dir, noiselevel=-1)
return 1
else:
raise
def makedirs(dir_path):
try:
os.makedirs(dir_path)
except OSError as oe:
if errno.EEXIST == oe.errno:
pass
elif errno.EPERM == oe.errno:
writemsg("%s\n" % oe, noiselevel=-1)
writemsg(_("Operation Not Permitted: makedirs('%s')\n") % \
dir_path, noiselevel=-1)
return False
else:
raise
return True
mysettings["PKG_LOGDIR"] = os.path.join(mysettings["T"], "logging")
mydirs = [os.path.dirname(mysettings["PORTAGE_BUILDDIR"])]
mydirs.append(os.path.dirname(mydirs[-1]))
try:
for mydir in mydirs:
ensure_dirs(mydir)
apply_secpass_permissions(mydir,
gid=portage_gid, uid=portage_uid, mode=0o70, mask=0)
for dir_key in ("PORTAGE_BUILDDIR", "HOME", "PKG_LOGDIR", "T"):
"""These directories don't necessarily need to be group writable.
However, the setup phase is commonly run as a privileged user prior
to the other phases being run by an unprivileged user. Currently,
we use the portage group to ensure that the unprivleged user still
has write access to these directories in any case."""
ensure_dirs(mysettings[dir_key], mode=0o775)
apply_secpass_permissions(mysettings[dir_key],
uid=portage_uid, gid=portage_gid)
except PermissionDenied as e:
writemsg(_("Permission Denied: %s\n") % str(e), noiselevel=-1)
return 1
except OperationNotPermitted as e:
writemsg(_("Operation Not Permitted: %s\n") % str(e), noiselevel=-1)
return 1
except FileNotFound as e:
writemsg(_("File Not Found: '%s'\n") % str(e), noiselevel=-1)
return 1
# Reset state for things like noauto and keepwork in FEATURES.
for x in ('.die_hooks',):
try:
os.unlink(os.path.join(mysettings['PORTAGE_BUILDDIR'], x))
except OSError:
pass
_prepare_workdir(mysettings)
if mysettings.get('EBUILD_PHASE') != 'fetch':
# Avoid spurious permissions adjustments when fetching with
# a temporary PORTAGE_TMPDIR setting (for fetchonly).
_prepare_features_dirs(mysettings)
def _prepare_workdir(mysettings):
workdir_mode = 0o700
try:
mode = mysettings["PORTAGE_WORKDIR_MODE"]
if mode.isdigit():
parsed_mode = int(mode, 8)
elif mode == "":
raise KeyError()
else:
raise ValueError()
if parsed_mode & 0o7777 != parsed_mode:
raise ValueError("Invalid file mode: %s" % mode)
else:
workdir_mode = parsed_mode
except KeyError as e:
writemsg(_("!!! PORTAGE_WORKDIR_MODE is unset, using %s.\n") % oct(workdir_mode))
except ValueError as e:
if len(str(e)) > 0:
writemsg("%s\n" % e)
writemsg(_("!!! Unable to parse PORTAGE_WORKDIR_MODE='%s', using %s.\n") % \
(mysettings["PORTAGE_WORKDIR_MODE"], oct(workdir_mode)))
mysettings["PORTAGE_WORKDIR_MODE"] = oct(workdir_mode).replace('o', '')
try:
apply_secpass_permissions(mysettings["WORKDIR"],
uid=portage_uid, gid=portage_gid, mode=workdir_mode)
except FileNotFound:
pass # ebuild.sh will create it
if mysettings.get("PORTAGE_LOGDIR", "") == "":
while "PORTAGE_LOGDIR" in mysettings:
del mysettings["PORTAGE_LOGDIR"]
if "PORTAGE_LOGDIR" in mysettings:
try:
modified = ensure_dirs(mysettings["PORTAGE_LOGDIR"])
if modified:
# Only initialize group/mode if the directory doesn't
# exist, so that we don't override permissions if they
# were previously set by the administrator.
# NOTE: These permissions should be compatible with our
# default logrotate config as discussed in bug 374287.
apply_secpass_permissions(mysettings["PORTAGE_LOGDIR"],
uid=portage_uid, gid=portage_gid, mode=0o2770)
except PortageException as e:
writemsg("!!! %s\n" % str(e), noiselevel=-1)
writemsg(_("!!! Permission issues with PORTAGE_LOGDIR='%s'\n") % \
mysettings["PORTAGE_LOGDIR"], noiselevel=-1)
writemsg(_("!!! Disabling logging.\n"), noiselevel=-1)
while "PORTAGE_LOGDIR" in mysettings:
del mysettings["PORTAGE_LOGDIR"]
compress_log_ext = ''
if 'compress-build-logs' in mysettings.features:
compress_log_ext = '.gz'
logdir_subdir_ok = False
if "PORTAGE_LOGDIR" in mysettings and \
os.access(mysettings["PORTAGE_LOGDIR"], os.W_OK):
logdir = normalize_path(mysettings["PORTAGE_LOGDIR"])
logid_path = os.path.join(mysettings["PORTAGE_BUILDDIR"], ".logid")
if not os.path.exists(logid_path):
open(_unicode_encode(logid_path), 'w').close()
logid_time = _unicode_decode(time.strftime("%Y%m%d-%H%M%S",
time.gmtime(os.stat(logid_path).st_mtime)),
encoding=_encodings['content'], errors='replace')
if "split-log" in mysettings.features:
log_subdir = os.path.join(logdir, "build", mysettings["CATEGORY"])
mysettings["PORTAGE_LOG_FILE"] = os.path.join(
log_subdir, "%s:%s.log%s" %
(mysettings["PF"], logid_time, compress_log_ext))
else:
log_subdir = logdir
mysettings["PORTAGE_LOG_FILE"] = os.path.join(
logdir, "%s:%s:%s.log%s" % \
(mysettings["CATEGORY"], mysettings["PF"], logid_time,
compress_log_ext))
if log_subdir is logdir:
logdir_subdir_ok = True
else:
try:
_ensure_log_subdirs(logdir, log_subdir)
except PortageException as e:
writemsg("!!! %s\n" % (e,), noiselevel=-1)
if os.access(log_subdir, os.W_OK):
logdir_subdir_ok = True
else:
writemsg("!!! %s: %s\n" %
(_("Permission Denied"), log_subdir), noiselevel=-1)
tmpdir_log_path = os.path.join(
mysettings["T"], "build.log%s" % compress_log_ext)
if not logdir_subdir_ok:
# NOTE: When sesandbox is enabled, the local SELinux security policies
# may not allow output to be piped out of the sesandbox domain. The
# current policy will allow it to work when a pty is available, but
# not through a normal pipe. See bug #162404.
mysettings["PORTAGE_LOG_FILE"] = tmpdir_log_path
else:
# Create a symlink from tmpdir_log_path to PORTAGE_LOG_FILE, as
# requested in bug #412865.
make_new_symlink = False
try:
target = os.readlink(tmpdir_log_path)
except OSError:
make_new_symlink = True
else:
if target != mysettings["PORTAGE_LOG_FILE"]:
make_new_symlink = True
if make_new_symlink:
try:
os.unlink(tmpdir_log_path)
except OSError:
pass
os.symlink(mysettings["PORTAGE_LOG_FILE"], tmpdir_log_path)
def updateItems(self, repoid):
"""
Figure out which news items from NEWS_PATH are both unread and relevant to
the user (according to the GLEP 42 standards of relevancy). Then add these
items into the news.repoid.unread file.
"""
# Ensure that the unread path exists and is writable.
try:
ensure_dirs(self.unread_path, uid=self._uid, gid=self._gid,
mode=self._dir_mode, mask=self._mode_mask)
except (OperationNotPermitted, PermissionDenied):
return
if not os.access(self.unread_path, os.W_OK):
return
news_dir = self._news_dir(repoid)
try:
news = _os.listdir(_unicode_encode(news_dir,
encoding=_encodings['fs'], errors='strict'))
except OSError:
return
skip_filename = self._skip_filename(repoid)
unread_filename = self._unread_filename(repoid)
unread_lock = lockfile(unread_filename, wantnewlockfile=1)
try:
try:
unread = set(grabfile(unread_filename))
unread_orig = unread.copy()
skip = set(grabfile(skip_filename))
skip_orig = skip.copy()
except PermissionDenied:
return
for itemid in news:
try:
itemid = _unicode_decode(itemid,
encoding=_encodings['fs'], errors='strict')
except UnicodeDecodeError:
itemid = _unicode_decode(itemid,
encoding=_encodings['fs'], errors='replace')
writemsg_level(
_("!!! Invalid encoding in news item name: '%s'\n") % \
itemid, level=logging.ERROR, noiselevel=-1)
continue
if itemid in skip:
continue
filename = os.path.join(news_dir, itemid,
itemid + "." + self.language_id + ".txt")
if not os.path.isfile(filename):
continue
item = NewsItem(filename, itemid)
if not item.isValid():
continue
if item.isRelevant(profile=self._profile_path,
config=self.config, vardb=self.vdb):
unread.add(item.name)
skip.add(item.name)
if unread != unread_orig:
write_atomic(unread_filename,
"".join("%s\n" % x for x in sorted(unread)))
apply_secpass_permissions(unread_filename,
uid=self._uid, gid=self._gid,
mode=self._file_mode, mask=self._mode_mask)
if skip != skip_orig:
write_atomic(skip_filename,
"".join("%s\n" % x for x in sorted(skip)))
apply_secpass_permissions(skip_filename,
uid=self._uid, gid=self._gid,
mode=self._file_mode, mask=self._mode_mask)
finally:
unlockfile(unread_lock)
def fetch(myuris, mysettings, listonly=0, fetchonly=0,
locks_in_subdir=".locks", use_locks=1, try_mirrors=1, digests=None,
allow_missing_digests=True, force=False):
"""
Fetch files to DISTDIR and also verify digests if they are available.
@param myuris: Maps each file name to a tuple of available fetch URIs.
@type myuris: dict
@param mysettings: Portage config instance.
@type mysettings: portage.config
@param listonly: Only print URIs and do not actually fetch them.
@type listonly: bool
@param fetchonly: Do not block for files that are locked by a
concurrent fetcher process. This means that the function can
return successfully *before* all files have been successfully
fetched!
@type fetchonly: bool
@param use_locks: Enable locks. This parameter is ineffective if
FEATURES=distlocks is disabled in the portage config!
@type use_locks: bool
@param digests: Maps each file name to a dict of digest types and values.
@type digests: dict
@param allow_missing_digests: Enable fetch even if there are no digests
available for verification.
@type allow_missing_digests: bool
@param force: Force download, even when a file already exists in
DISTDIR. This is most useful when there are no digests available,
since otherwise download will be automatically forced if the
existing file does not match the available digests. Also, this
avoids the need to remove the existing file in advance, which
makes it possible to atomically replace the file and avoid
interference with concurrent processes.
@type force: bool
@rtype: int
@return: 1 if successful, 0 otherwise.
"""
if force and digests:
# Since the force parameter can trigger unnecessary fetch when the
# digests match, do not allow force=True when digests are provided.
raise PortageException(_('fetch: force=True is not allowed when digests are provided'))
if not myuris:
return 1
features = mysettings.features
restrict = mysettings.get("PORTAGE_RESTRICT","").split()
userfetch = portage.data.secpass >= 2 and "userfetch" in features
# 'nomirror' is bad/negative logic. You Restrict mirroring, not no-mirroring.
restrict_mirror = "mirror" in restrict or "nomirror" in restrict
if restrict_mirror:
if ("mirror" in features) and ("lmirror" not in features):
# lmirror should allow you to bypass mirror restrictions.
# XXX: This is not a good thing, and is temporary at best.
print(_(">>> \"mirror\" mode desired and \"mirror\" restriction found; skipping fetch."))
return 1
# Generally, downloading the same file repeatedly from
# every single available mirror is a waste of bandwidth
# and time, so there needs to be a cap.
checksum_failure_max_tries = 5
v = checksum_failure_max_tries
try:
v = int(mysettings.get("PORTAGE_FETCH_CHECKSUM_TRY_MIRRORS",
checksum_failure_max_tries))
except (ValueError, OverflowError):
writemsg(_("!!! Variable PORTAGE_FETCH_CHECKSUM_TRY_MIRRORS"
" contains non-integer value: '%s'\n") % \
mysettings["PORTAGE_FETCH_CHECKSUM_TRY_MIRRORS"], noiselevel=-1)
writemsg(_("!!! Using PORTAGE_FETCH_CHECKSUM_TRY_MIRRORS "
"default value: %s\n") % checksum_failure_max_tries,
noiselevel=-1)
v = checksum_failure_max_tries
if v < 1:
writemsg(_("!!! Variable PORTAGE_FETCH_CHECKSUM_TRY_MIRRORS"
" contains value less than 1: '%s'\n") % v, noiselevel=-1)
writemsg(_("!!! Using PORTAGE_FETCH_CHECKSUM_TRY_MIRRORS "
"default value: %s\n") % checksum_failure_max_tries,
noiselevel=-1)
v = checksum_failure_max_tries
checksum_failure_max_tries = v
del v
fetch_resume_size_default = "350K"
fetch_resume_size = mysettings.get("PORTAGE_FETCH_RESUME_MIN_SIZE")
if fetch_resume_size is not None:
fetch_resume_size = "".join(fetch_resume_size.split())
if not fetch_resume_size:
# If it's undefined or empty, silently use the default.
fetch_resume_size = fetch_resume_size_default
match = _fetch_resume_size_re.match(fetch_resume_size)
if match is None or \
(match.group(2).upper() not in _size_suffix_map):
writemsg(_("!!! Variable PORTAGE_FETCH_RESUME_MIN_SIZE"
" contains an unrecognized format: '%s'\n") % \
mysettings["PORTAGE_FETCH_RESUME_MIN_SIZE"], noiselevel=-1)
writemsg(_("!!! Using PORTAGE_FETCH_RESUME_MIN_SIZE "
"default value: %s\n") % fetch_resume_size_default,
noiselevel=-1)
fetch_resume_size = None
if fetch_resume_size is None:
fetch_resume_size = fetch_resume_size_default
match = _fetch_resume_size_re.match(fetch_resume_size)
fetch_resume_size = int(match.group(1)) * \
2 ** _size_suffix_map[match.group(2).upper()]
# Behave like the package has RESTRICT="primaryuri" after a
# couple of checksum failures, to increase the probablility
# of success before checksum_failure_max_tries is reached.
checksum_failure_primaryuri = 2
thirdpartymirrors = mysettings.thirdpartymirrors()
# In the background parallel-fetch process, it's safe to skip checksum
# verification of pre-existing files in $DISTDIR that have the correct
# file size. The parent process will verify their checksums prior to
# the unpack phase.
parallel_fetchonly = "PORTAGE_PARALLEL_FETCHONLY" in mysettings
if parallel_fetchonly:
fetchonly = 1
check_config_instance(mysettings)
custommirrors = grabdict(os.path.join(mysettings["PORTAGE_CONFIGROOT"],
CUSTOM_MIRRORS_FILE), recursive=1)
mymirrors=[]
if listonly or ("distlocks" not in features):
use_locks = 0
distdir_writable = os.access(mysettings["DISTDIR"], os.W_OK)
fetch_to_ro = 0
if "skiprocheck" in features:
fetch_to_ro = 1
if not distdir_writable and fetch_to_ro:
if use_locks:
writemsg(colorize("BAD",
_("!!! For fetching to a read-only filesystem, "
"locking should be turned off.\n")), noiselevel=-1)
writemsg(_("!!! This can be done by adding -distlocks to "
"FEATURES in /etc/portage/make.conf\n"), noiselevel=-1)
# use_locks = 0
# local mirrors are always added
if try_mirrors and "local" in custommirrors:
mymirrors += custommirrors["local"]
if restrict_mirror:
# We don't add any mirrors.
pass
else:
if try_mirrors:
mymirrors += [x.rstrip("/") for x in mysettings["GENTOO_MIRRORS"].split() if x]
hash_filter = _hash_filter(mysettings.get("PORTAGE_CHECKSUM_FILTER", ""))
if hash_filter.transparent:
hash_filter = None
skip_manifest = mysettings.get("EBUILD_SKIP_MANIFEST") == "1"
if skip_manifest:
allow_missing_digests = True
pkgdir = mysettings.get("O")
if digests is None and not (pkgdir is None or skip_manifest):
mydigests = mysettings.repositories.get_repo_for_location(
os.path.dirname(os.path.dirname(pkgdir))).load_manifest(
pkgdir, mysettings["DISTDIR"]).getTypeDigests("DIST")
elif digests is None or skip_manifest:
# no digests because fetch was not called for a specific package
mydigests = {}
else:
mydigests = digests
ro_distdirs = [x for x in \
shlex_split(mysettings.get("PORTAGE_RO_DISTDIRS", "")) \
if os.path.isdir(x)]
fsmirrors = []
for x in range(len(mymirrors)-1,-1,-1):
if mymirrors[x] and mymirrors[x][0]=='/':
fsmirrors += [mymirrors[x]]
del mymirrors[x]
restrict_fetch = "fetch" in restrict
force_mirror = "force-mirror" in features and not restrict_mirror
custom_local_mirrors = custommirrors.get("local", [])
if restrict_fetch:
# With fetch restriction, a normal uri may only be fetched from
# custom local mirrors (if available). A mirror:// uri may also
# be fetched from specific mirrors (effectively overriding fetch
# restriction, but only for specific mirrors).
locations = custom_local_mirrors
else:
locations = mymirrors
file_uri_tuples = []
# Check for 'items' attribute since OrderedDict is not a dict.
if hasattr(myuris, 'items'):
for myfile, uri_set in myuris.items():
for myuri in uri_set:
file_uri_tuples.append((myfile, myuri))
if not uri_set:
file_uri_tuples.append((myfile, None))
else:
for myuri in myuris:
if urlparse(myuri).scheme:
file_uri_tuples.append((os.path.basename(myuri), myuri))
else:
file_uri_tuples.append((os.path.basename(myuri), None))
filedict = OrderedDict()
primaryuri_dict = {}
thirdpartymirror_uris = {}
for myfile, myuri in file_uri_tuples:
if myfile not in filedict:
filedict[myfile]=[]
if distdir_writable:
mirror_cache = os.path.join(mysettings["DISTDIR"],
".mirror-cache.json")
else:
mirror_cache = None
for l in locations:
filedict[myfile].append(functools.partial(
get_mirror_url, l, myfile, mysettings, mirror_cache))
if myuri is None:
continue
if myuri[:9]=="mirror://":
eidx = myuri.find("/", 9)
if eidx != -1:
mirrorname = myuri[9:eidx]
path = myuri[eidx+1:]
# Try user-defined mirrors first
if mirrorname in custommirrors:
for cmirr in custommirrors[mirrorname]:
filedict[myfile].append(
cmirr.rstrip("/") + "/" + path)
# now try the official mirrors
if mirrorname in thirdpartymirrors:
uris = [locmirr.rstrip("/") + "/" + path \
for locmirr in thirdpartymirrors[mirrorname]]
random.shuffle(uris)
filedict[myfile].extend(uris)
thirdpartymirror_uris.setdefault(myfile, []).extend(uris)
if mirrorname not in custommirrors and \
mirrorname not in thirdpartymirrors:
writemsg(_("!!! No known mirror by the name: %s\n") % (mirrorname))
else:
writemsg(_("Invalid mirror definition in SRC_URI:\n"), noiselevel=-1)
writemsg(" %s\n" % (myuri), noiselevel=-1)
else:
if restrict_fetch or force_mirror:
# Only fetch from specific mirrors is allowed.
continue
primaryuris = primaryuri_dict.get(myfile)
if primaryuris is None:
primaryuris = []
primaryuri_dict[myfile] = primaryuris
primaryuris.append(myuri)
# Order primaryuri_dict values to match that in SRC_URI.
for uris in primaryuri_dict.values():
uris.reverse()
# Prefer thirdpartymirrors over normal mirrors in cases when
# the file does not yet exist on the normal mirrors.
for myfile, uris in thirdpartymirror_uris.items():
primaryuri_dict.setdefault(myfile, []).extend(uris)
# Now merge primaryuri values into filedict (includes mirrors
# explicitly referenced in SRC_URI).
if "primaryuri" in restrict:
for myfile, uris in filedict.items():
filedict[myfile] = primaryuri_dict.get(myfile, []) + uris
else:
for myfile in filedict:
filedict[myfile] += primaryuri_dict.get(myfile, [])
can_fetch=True
if listonly:
can_fetch = False
if can_fetch and not fetch_to_ro:
try:
_ensure_distdir(mysettings, mysettings["DISTDIR"])
except PortageException as e:
if not os.path.isdir(mysettings["DISTDIR"]):
writemsg("!!! %s\n" % str(e), noiselevel=-1)
writemsg(_("!!! Directory Not Found: DISTDIR='%s'\n") % mysettings["DISTDIR"], noiselevel=-1)
writemsg(_("!!! Fetching will fail!\n"), noiselevel=-1)
if can_fetch and \
not fetch_to_ro and \
not os.access(mysettings["DISTDIR"], os.W_OK):
writemsg(_("!!! No write access to '%s'\n") % mysettings["DISTDIR"],
noiselevel=-1)
can_fetch = False
distdir_writable = can_fetch and not fetch_to_ro
failed_files = set()
restrict_fetch_msg = False
valid_hashes = set(get_valid_checksum_keys())
valid_hashes.discard("size")
for myfile in filedict:
"""
fetched status
0 nonexistent
1 partially downloaded
2 completely downloaded
"""
fetched = 0
orig_digests = mydigests.get(myfile, {})
if not (allow_missing_digests or listonly):
verifiable_hash_types = set(orig_digests).intersection(valid_hashes)
if not verifiable_hash_types:
expected = " ".join(sorted(valid_hashes))
got = set(orig_digests)
got.discard("size")
got = " ".join(sorted(got))
reason = (_("Insufficient data for checksum verification"),
got, expected)
writemsg(_("!!! Fetched file: %s VERIFY FAILED!\n") % myfile,
noiselevel=-1)
writemsg(_("!!! Reason: %s\n") % reason[0],
noiselevel=-1)
writemsg(_("!!! Got: %s\n!!! Expected: %s\n") % \
(reason[1], reason[2]), noiselevel=-1)
if fetchonly:
failed_files.add(myfile)
continue
else:
return 0
size = orig_digests.get("size")
if size == 0:
# Zero-byte distfiles are always invalid, so discard their digests.
del mydigests[myfile]
orig_digests.clear()
size = None
pruned_digests = orig_digests
if parallel_fetchonly:
pruned_digests = {}
if size is not None:
pruned_digests["size"] = size
myfile_path = os.path.join(mysettings["DISTDIR"], myfile)
download_path = myfile_path if fetch_to_ro else myfile_path + _download_suffix
has_space = True
has_space_superuser = True
file_lock = None
if listonly:
writemsg_stdout("\n", noiselevel=-1)
else:
# check if there is enough space in DISTDIR to completely store myfile
# overestimate the filesize so we aren't bitten by FS overhead
vfs_stat = None
if size is not None and hasattr(os, "statvfs"):
try:
vfs_stat = os.statvfs(mysettings["DISTDIR"])
except OSError as e:
writemsg_level("!!! statvfs('%s'): %s\n" %
(mysettings["DISTDIR"], e),
noiselevel=-1, level=logging.ERROR)
del e
if vfs_stat is not None:
try:
mysize = os.stat(myfile_path).st_size
except OSError as e:
if e.errno not in (errno.ENOENT, errno.ESTALE):
raise
del e
mysize = 0
if (size - mysize + vfs_stat.f_bsize) >= \
(vfs_stat.f_bsize * vfs_stat.f_bavail):
if (size - mysize + vfs_stat.f_bsize) >= \
(vfs_stat.f_bsize * vfs_stat.f_bfree):
has_space_superuser = False
if not has_space_superuser:
has_space = False
elif portage.data.secpass < 2:
has_space = False
elif userfetch:
has_space = False
if distdir_writable and use_locks:
lock_kwargs = {}
if fetchonly:
lock_kwargs["flags"] = os.O_NONBLOCK
try:
file_lock = lockfile(myfile_path,
wantnewlockfile=1, **lock_kwargs)
except TryAgain:
writemsg(_(">>> File '%s' is already locked by "
"another fetcher. Continuing...\n") % myfile,
noiselevel=-1)
continue
try:
if not listonly:
eout = EOutput()
eout.quiet = mysettings.get("PORTAGE_QUIET") == "1"
match, mystat = _check_distfile(
myfile_path, pruned_digests, eout, hash_filter=hash_filter)
if match and not force:
# Skip permission adjustment for symlinks, since we don't
# want to modify anything outside of the primary DISTDIR,
# and symlinks typically point to PORTAGE_RO_DISTDIRS.
if distdir_writable and not os.path.islink(myfile_path):
try:
apply_secpass_permissions(myfile_path,
gid=portage_gid, mode=0o664, mask=0o2,
stat_cached=mystat)
except PortageException as e:
if not os.access(myfile_path, os.R_OK):
writemsg(_("!!! Failed to adjust permissions:"
" %s\n") % str(e), noiselevel=-1)
del e
continue
# Remove broken symlinks or symlinks to files which
# _check_distfile did not match above.
if distdir_writable and mystat is None or os.path.islink(myfile_path):
try:
os.unlink(myfile_path)
except OSError as e:
if e.errno not in (errno.ENOENT, errno.ESTALE):
raise
mystat = None
if mystat is not None:
if stat.S_ISDIR(mystat.st_mode):
writemsg_level(
_("!!! Unable to fetch file since "
"a directory is in the way: \n"
"!!! %s\n") % myfile_path,
level=logging.ERROR, noiselevel=-1)
return 0
if distdir_writable and not force:
# Since _check_distfile did not match above, the file
# is either corrupt or its identity has changed since
# the last time it was fetched, so rename it.
temp_filename = _checksum_failure_temp_file(
mysettings, mysettings["DISTDIR"], myfile)
writemsg_stdout(_("Refetching... "
"File renamed to '%s'\n\n") % \
temp_filename, noiselevel=-1)
# Stat the temporary download file for comparison with
# fetch_resume_size.
try:
mystat = os.stat(download_path)
except OSError as e:
if e.errno not in (errno.ENOENT, errno.ESTALE):
raise
mystat = None
if mystat is not None:
if mystat.st_size == 0:
if distdir_writable:
try:
os.unlink(download_path)
except OSError:
pass
elif distdir_writable and size is not None:
if mystat.st_size < fetch_resume_size and \
mystat.st_size < size:
# If the file already exists and the size does not
# match the existing digests, it may be that the
# user is attempting to update the digest. In this
# case, the digestgen() function will advise the
# user to use `ebuild --force foo.ebuild manifest`
# in order to force the old digests to be replaced.
# Since the user may want to keep this file, rename
# it instead of deleting it.
writemsg(_(">>> Renaming distfile with size "
"%d (smaller than " "PORTAGE_FETCH_RESU"
"ME_MIN_SIZE)\n") % mystat.st_size)
temp_filename = \
_checksum_failure_temp_file(
mysettings, mysettings["DISTDIR"],
os.path.basename(download_path))
writemsg_stdout(_("Refetching... "
"File renamed to '%s'\n\n") % \
temp_filename, noiselevel=-1)
elif mystat.st_size >= size:
temp_filename = \
_checksum_failure_temp_file(
mysettings, mysettings["DISTDIR"],
os.path.basename(download_path))
writemsg_stdout(_("Refetching... "
"File renamed to '%s'\n\n") % \
temp_filename, noiselevel=-1)
if distdir_writable and ro_distdirs:
readonly_file = None
for x in ro_distdirs:
filename = os.path.join(x, myfile)
match, mystat = _check_distfile(
filename, pruned_digests, eout, hash_filter=hash_filter)
if match:
readonly_file = filename
break
if readonly_file is not None:
try:
os.unlink(myfile_path)
except OSError as e:
if e.errno not in (errno.ENOENT, errno.ESTALE):
raise
del e
os.symlink(readonly_file, myfile_path)
continue
# this message is shown only after we know that
# the file is not already fetched
if not has_space:
writemsg(_("!!! Insufficient space to store %s in %s\n") % \
(myfile, mysettings["DISTDIR"]), noiselevel=-1)
if has_space_superuser:
writemsg(_("!!! Insufficient privileges to use "
"remaining space.\n"), noiselevel=-1)
if userfetch:
writemsg(_("!!! You may set FEATURES=\"-userfetch\""
" in /etc/portage/make.conf in order to fetch with\n"
"!!! superuser privileges.\n"), noiselevel=-1)
if fsmirrors and not os.path.exists(myfile_path) and has_space:
for mydir in fsmirrors:
mirror_file = os.path.join(mydir, myfile)
try:
shutil.copyfile(mirror_file, download_path)
writemsg(_("Local mirror has file: %s\n") % myfile)
break
except (IOError, OSError) as e:
if e.errno not in (errno.ENOENT, errno.ESTALE):
raise
del e
try:
mystat = os.stat(download_path)
except OSError as e:
if e.errno not in (errno.ENOENT, errno.ESTALE):
raise
del e
else:
# Skip permission adjustment for symlinks, since we don't
# want to modify anything outside of the primary DISTDIR,
# and symlinks typically point to PORTAGE_RO_DISTDIRS.
if not os.path.islink(download_path):
try:
apply_secpass_permissions(download_path,
gid=portage_gid, mode=0o664, mask=0o2,
stat_cached=mystat)
except PortageException as e:
if not os.access(download_path, os.R_OK):
writemsg(_("!!! Failed to adjust permissions:"
" %s\n") % (e,), noiselevel=-1)
# If the file is empty then it's obviously invalid. Remove
# the empty file and try to download if possible.
if mystat.st_size == 0:
if distdir_writable:
try:
os.unlink(download_path)
except EnvironmentError:
pass
elif not orig_digests:
# We don't have a digest, but the file exists. We must
# assume that it is fully downloaded.
if not force:
continue
else:
if (mydigests[myfile].get("size") is not None
and mystat.st_size < mydigests[myfile]["size"]
and not restrict_fetch):
fetched = 1 # Try to resume this download.
elif parallel_fetchonly and \
mystat.st_size == mydigests[myfile]["size"]:
eout = EOutput()
eout.quiet = \
mysettings.get("PORTAGE_QUIET") == "1"
eout.ebegin(
"%s size ;-)" % (myfile, ))
eout.eend(0)
continue
else:
digests = _filter_unaccelarated_hashes(mydigests[myfile])
if hash_filter is not None:
digests = _apply_hash_filter(digests, hash_filter)
verified_ok, reason = verify_all(download_path, digests)
if not verified_ok:
writemsg(_("!!! Previously fetched"
" file: '%s'\n") % myfile, noiselevel=-1)
writemsg(_("!!! Reason: %s\n") % reason[0],
noiselevel=-1)
writemsg(_("!!! Got: %s\n"
"!!! Expected: %s\n") % \
(reason[1], reason[2]), noiselevel=-1)
if reason[0] == _("Insufficient data for checksum verification"):
return 0
if distdir_writable:
temp_filename = \
_checksum_failure_temp_file(
mysettings, mysettings["DISTDIR"],
os.path.basename(download_path))
writemsg_stdout(_("Refetching... "
"File renamed to '%s'\n\n") % \
temp_filename, noiselevel=-1)
else:
if not fetch_to_ro:
_movefile(download_path, myfile_path, mysettings=mysettings)
eout = EOutput()
eout.quiet = \
mysettings.get("PORTAGE_QUIET", None) == "1"
if digests:
digests = list(digests)
digests.sort()
eout.ebegin(
"%s %s ;-)" % (myfile, " ".join(digests)))
eout.eend(0)
continue # fetch any remaining files
# Create a reversed list since that is optimal for list.pop().
uri_list = filedict[myfile][:]
uri_list.reverse()
checksum_failure_count = 0
tried_locations = set()
while uri_list:
loc = uri_list.pop()
if isinstance(loc, functools.partial):
loc = loc()
# Eliminate duplicates here in case we've switched to
# "primaryuri" mode on the fly due to a checksum failure.
if loc in tried_locations:
continue
tried_locations.add(loc)
if listonly:
writemsg_stdout(loc+" ", noiselevel=-1)
continue
# allow different fetchcommands per protocol
protocol = loc[0:loc.find("://")]
global_config_path = GLOBAL_CONFIG_PATH
if portage.const.EPREFIX:
global_config_path = os.path.join(portage.const.EPREFIX,
GLOBAL_CONFIG_PATH.lstrip(os.sep))
missing_file_param = False
fetchcommand_var = "FETCHCOMMAND_" + protocol.upper()
fetchcommand = mysettings.get(fetchcommand_var)
if fetchcommand is None:
fetchcommand_var = "FETCHCOMMAND"
fetchcommand = mysettings.get(fetchcommand_var)
if fetchcommand is None:
writemsg_level(
_("!!! %s is unset. It should "
"have been defined in\n!!! %s/make.globals.\n") \
% (fetchcommand_var, global_config_path),
level=logging.ERROR, noiselevel=-1)
return 0
if "${FILE}" not in fetchcommand:
writemsg_level(
_("!!! %s does not contain the required ${FILE}"
" parameter.\n") % fetchcommand_var,
level=logging.ERROR, noiselevel=-1)
missing_file_param = True
resumecommand_var = "RESUMECOMMAND_" + protocol.upper()
resumecommand = mysettings.get(resumecommand_var)
if resumecommand is None:
resumecommand_var = "RESUMECOMMAND"
resumecommand = mysettings.get(resumecommand_var)
if resumecommand is None:
writemsg_level(
_("!!! %s is unset. It should "
"have been defined in\n!!! %s/make.globals.\n") \
% (resumecommand_var, global_config_path),
level=logging.ERROR, noiselevel=-1)
return 0
if "${FILE}" not in resumecommand:
writemsg_level(
_("!!! %s does not contain the required ${FILE}"
" parameter.\n") % resumecommand_var,
level=logging.ERROR, noiselevel=-1)
missing_file_param = True
if missing_file_param:
writemsg_level(
_("!!! Refer to the make.conf(5) man page for "
"information about how to\n!!! correctly specify "
"FETCHCOMMAND and RESUMECOMMAND.\n"),
level=logging.ERROR, noiselevel=-1)
if myfile != os.path.basename(loc):
return 0
if not can_fetch:
if fetched != 2:
try:
mysize = os.stat(download_path).st_size
except OSError as e:
if e.errno not in (errno.ENOENT, errno.ESTALE):
raise
del e
mysize = 0
if mysize == 0:
writemsg(_("!!! File %s isn't fetched but unable to get it.\n") % myfile,
noiselevel=-1)
elif size is None or size > mysize:
writemsg(_("!!! File %s isn't fully fetched, but unable to complete it\n") % myfile,
noiselevel=-1)
else:
writemsg(_("!!! File %s is incorrect size, "
"but unable to retry.\n") % myfile, noiselevel=-1)
return 0
else:
continue
if fetched != 2 and has_space:
#we either need to resume or start the download
if fetched == 1:
try:
mystat = os.stat(download_path)
except OSError as e:
if e.errno not in (errno.ENOENT, errno.ESTALE):
raise
del e
fetched = 0
else:
if distdir_writable and mystat.st_size < fetch_resume_size:
writemsg(_(">>> Deleting distfile with size "
"%d (smaller than " "PORTAGE_FETCH_RESU"
"ME_MIN_SIZE)\n") % mystat.st_size)
try:
os.unlink(download_path)
except OSError as e:
if e.errno not in \
(errno.ENOENT, errno.ESTALE):
raise
del e
fetched = 0
if fetched == 1:
#resume mode:
writemsg(_(">>> Resuming download...\n"))
locfetch=resumecommand
command_var = resumecommand_var
else:
#normal mode:
locfetch=fetchcommand
command_var = fetchcommand_var
writemsg_stdout(_(">>> Downloading '%s'\n") % \
_hide_url_passwd(loc))
variables = {
"URI": loc,
"FILE": os.path.basename(download_path)
}
for k in ("DISTDIR", "PORTAGE_SSH_OPTS"):
v = mysettings.get(k)
if v is not None:
variables[k] = v
myfetch = shlex_split(locfetch)
myfetch = [varexpand(x, mydict=variables) for x in myfetch]
myret = -1
try:
myret = _spawn_fetch(mysettings, myfetch)
finally:
try:
apply_secpass_permissions(download_path,
gid=portage_gid, mode=0o664, mask=0o2)
except FileNotFound:
pass
except PortageException as e:
if not os.access(download_path, os.R_OK):
writemsg(_("!!! Failed to adjust permissions:"
" %s\n") % str(e), noiselevel=-1)
del e
# If the file is empty then it's obviously invalid. Don't
# trust the return value from the fetcher. Remove the
# empty file and try to download again.
try:
mystat = os.lstat(download_path)
if mystat.st_size == 0 or (stat.S_ISLNK(mystat.st_mode) and not os.path.exists(download_path)):
os.unlink(download_path)
fetched = 0
continue
except EnvironmentError:
pass
if mydigests is not None and myfile in mydigests:
try:
mystat = os.stat(download_path)
except OSError as e:
if e.errno not in (errno.ENOENT, errno.ESTALE):
raise
del e
fetched = 0
else:
if stat.S_ISDIR(mystat.st_mode):
# This can happen if FETCHCOMMAND erroneously
# contains wget's -P option where it should
# instead have -O.
writemsg_level(
_("!!! The command specified in the "
"%s variable appears to have\n!!! "
"created a directory instead of a "
"normal file.\n") % command_var,
level=logging.ERROR, noiselevel=-1)
writemsg_level(
_("!!! Refer to the make.conf(5) "
"man page for information about how "
"to\n!!! correctly specify "
"FETCHCOMMAND and RESUMECOMMAND.\n"),
level=logging.ERROR, noiselevel=-1)
return 0
# no exception? file exists. let digestcheck() report
# an appropriately for size or checksum errors
# If the fetcher reported success and the file is
# too small, it's probably because the digest is
# bad (upstream changed the distfile). In this
# case we don't want to attempt to resume. Show a
# digest verification failure to that the user gets
# a clue about what just happened.
if myret != os.EX_OK and \
mystat.st_size < mydigests[myfile]["size"]:
# Fetch failed... Try the next one... Kill 404 files though.
if (mystat[stat.ST_SIZE]<100000) and (len(myfile)>4) and not ((myfile[-5:]==".html") or (myfile[-4:]==".htm")):
html404=re.compile("<title>.*(not found|404).*</title>",re.I|re.M)
with io.open(
_unicode_encode(download_path,
encoding=_encodings['fs'], errors='strict'),
mode='r', encoding=_encodings['content'], errors='replace'
) as f:
if html404.search(f.read()):
try:
os.unlink(download_path)
writemsg(_(">>> Deleting invalid distfile. (Improper 404 redirect from server.)\n"))
fetched = 0
continue
except (IOError, OSError):
pass
fetched = 1
continue
if True:
# File is the correct size--check the checksums for the fetched
# file NOW, for those users who don't have a stable/continuous
# net connection. This way we have a chance to try to download
# from another mirror...
digests = _filter_unaccelarated_hashes(mydigests[myfile])
if hash_filter is not None:
digests = _apply_hash_filter(digests, hash_filter)
verified_ok, reason = verify_all(download_path, digests)
if not verified_ok:
writemsg(_("!!! Fetched file: %s VERIFY FAILED!\n") % myfile,
noiselevel=-1)
writemsg(_("!!! Reason: %s\n") % reason[0],
noiselevel=-1)
writemsg(_("!!! Got: %s\n!!! Expected: %s\n") % \
(reason[1], reason[2]), noiselevel=-1)
if reason[0] == _("Insufficient data for checksum verification"):
return 0
if distdir_writable:
temp_filename = \
_checksum_failure_temp_file(
mysettings, mysettings["DISTDIR"],
os.path.basename(download_path))
writemsg_stdout(_("Refetching... "
"File renamed to '%s'\n\n") % \
temp_filename, noiselevel=-1)
fetched=0
checksum_failure_count += 1
if checksum_failure_count == \
checksum_failure_primaryuri:
# Switch to "primaryuri" mode in order
# to increase the probablility of
# of success.
primaryuris = \
primaryuri_dict.get(myfile)
if primaryuris:
uri_list.extend(
reversed(primaryuris))
if checksum_failure_count >= \
checksum_failure_max_tries:
break
else:
if not fetch_to_ro:
_movefile(download_path, myfile_path, mysettings=mysettings)
eout = EOutput()
eout.quiet = mysettings.get("PORTAGE_QUIET", None) == "1"
if digests:
eout.ebegin("%s %s ;-)" % \
(myfile, " ".join(sorted(digests))))
eout.eend(0)
fetched=2
break
else: # no digests available
if not myret:
if not fetch_to_ro:
_movefile(download_path, myfile_path, mysettings=mysettings)
fetched=2
break
elif mydigests!=None:
writemsg(_("No digest file available and download failed.\n\n"),
noiselevel=-1)
finally:
if use_locks and file_lock:
unlockfile(file_lock)
file_lock = None
if listonly:
writemsg_stdout("\n", noiselevel=-1)
if fetched != 2:
if restrict_fetch and not restrict_fetch_msg:
restrict_fetch_msg = True
msg = _("\n!!! %s/%s"
" has fetch restriction turned on.\n"
"!!! This probably means that this "
"ebuild's files must be downloaded\n"
"!!! manually. See the comments in"
" the ebuild for more information.\n\n") % \
(mysettings["CATEGORY"], mysettings["PF"])
writemsg_level(msg,
level=logging.ERROR, noiselevel=-1)
elif restrict_fetch:
pass
elif listonly:
pass
elif not filedict[myfile]:
writemsg(_("Warning: No mirrors available for file"
" '%s'\n") % (myfile), noiselevel=-1)
else:
writemsg(_("!!! Couldn't download '%s'. Aborting.\n") % myfile,
noiselevel=-1)
if listonly:
failed_files.add(myfile)
continue
elif fetchonly:
failed_files.add(myfile)
continue
return 0
if failed_files:
return 0
return 1
