diff options
Diffstat (limited to 'portage_with_autodep/pym/portage/package/ebuild/fetch.py')
| -rw-r--r-- | portage_with_autodep/pym/portage/package/ebuild/fetch.py | 1129 |
1 files changed, 1129 insertions, 0 deletions
diff --git a/portage_with_autodep/pym/portage/package/ebuild/fetch.py b/portage_with_autodep/pym/portage/package/ebuild/fetch.py new file mode 100644 index 0000000..5cbbf87 --- /dev/null +++ b/portage_with_autodep/pym/portage/package/ebuild/fetch.py @@ -0,0 +1,1129 @@ +# Copyright 2010-2011 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 + +from __future__ import print_function + +__all__ = ['fetch'] + +import errno +import io +import logging +import random +import re +import shutil +import stat +import sys +import tempfile + + +import portage +portage.proxy.lazyimport.lazyimport(globals(), + 'portage.package.ebuild.config:check_config_instance,config', + 'portage.package.ebuild.doebuild:doebuild_environment,' + \ + '_doebuild_spawn', + 'portage.package.ebuild.prepare_build_dirs:prepare_build_dirs', +) + +from portage import OrderedDict, os, selinux, _encodings, \ + _shell_quote, _unicode_encode +from portage.checksum import hashfunc_map, perform_md5, verify_all +from portage.const import BASH_BINARY, CUSTOM_MIRRORS_FILE, \ + GLOBAL_CONFIG_PATH +from portage.data import portage_gid, portage_uid, secpass, userpriv_groups +from portage.exception import FileNotFound, OperationNotPermitted, \ + PortageException, TryAgain +from portage.localization import _ +from portage.locks import lockfile, unlockfile +from portage.manifest import Manifest +from portage.output import colorize, EOutput +from portage.util import apply_recursive_permissions, \ + apply_secpass_permissions, ensure_dirs, grabdict, shlex_split, \ + varexpand, writemsg, writemsg_level, writemsg_stdout +from portage.process import spawn + +_userpriv_spawn_kwargs = ( + ("uid", portage_uid), + ("gid", portage_gid), + ("groups", userpriv_groups), + ("umask", 0o02), +) + +def _spawn_fetch(settings, args, **kwargs): + """ + Spawn a process with appropriate settings for fetching, including + userfetch and selinux support. + """ + + global _userpriv_spawn_kwargs + + # Redirect all output to stdout since some fetchers like + # wget pollute stderr (if portage detects a problem then it + # can send it's own message to stderr). + if "fd_pipes" not in kwargs: + + kwargs["fd_pipes"] = { + 0 : sys.stdin.fileno(), + 1 : sys.stdout.fileno(), + 2 : sys.stdout.fileno(), + } + + if "userfetch" in settings.features and \ + os.getuid() == 0 and portage_gid and portage_uid: + kwargs.update(_userpriv_spawn_kwargs) + + spawn_func = spawn + + if settings.selinux_enabled(): + spawn_func = selinux.spawn_wrapper(spawn_func, + settings["PORTAGE_FETCH_T"]) + + # bash is an allowed entrypoint, while most binaries are not + if args[0] != BASH_BINARY: + args = [BASH_BINARY, "-c", "exec \"$@\"", args[0]] + args + + # Ensure that EBUILD_PHASE is set to fetch, so that config.environ() + # does not filter the calling environment (which may contain needed + # proxy variables, as in bug #315421). + phase_backup = settings.get('EBUILD_PHASE') + settings['EBUILD_PHASE'] = 'fetch' + try: + rval = spawn_func(args, env=settings.environ(), **kwargs) + finally: + if phase_backup is None: + settings.pop('EBUILD_PHASE', None) + else: + settings['EBUILD_PHASE'] = phase_backup + + return rval + +_userpriv_test_write_file_cache = {} +_userpriv_test_write_cmd_script = ">> %(file_path)s 2>/dev/null ; rval=$? ; " + \ + "rm -f %(file_path)s ; exit $rval" + +def _userpriv_test_write_file(settings, file_path): + """ + Drop privileges and try to open a file for writing. The file may or + may not exist, and the parent directory is assumed to exist. The file + is removed before returning. + + @param settings: A config instance which is passed to _spawn_fetch() + @param file_path: A file path to open and write. + @return: True if write succeeds, False otherwise. + """ + + global _userpriv_test_write_file_cache, _userpriv_test_write_cmd_script + rval = _userpriv_test_write_file_cache.get(file_path) + if rval is not None: + return rval + + args = [BASH_BINARY, "-c", _userpriv_test_write_cmd_script % \ + {"file_path" : _shell_quote(file_path)}] + + returncode = _spawn_fetch(settings, args) + + rval = returncode == os.EX_OK + _userpriv_test_write_file_cache[file_path] = rval + return rval + +def _checksum_failure_temp_file(distdir, basename): + """ + First try to find a duplicate temp file with the same checksum and return + that filename if available. Otherwise, use mkstemp to create a new unique + filename._checksum_failure_.$RANDOM, rename the given file, and return the + new filename. In any case, filename will be renamed or removed before this + function returns a temp filename. + """ + + filename = os.path.join(distdir, basename) + size = os.stat(filename).st_size + checksum = None + tempfile_re = re.compile(re.escape(basename) + r'\._checksum_failure_\..*') + for temp_filename in os.listdir(distdir): + if not tempfile_re.match(temp_filename): + continue + temp_filename = os.path.join(distdir, temp_filename) + try: + if size != os.stat(temp_filename).st_size: + continue + except OSError: + continue + try: + temp_checksum = perform_md5(temp_filename) + except FileNotFound: + # Apparently the temp file disappeared. Let it go. + continue + if checksum is None: + checksum = perform_md5(filename) + if checksum == temp_checksum: + os.unlink(filename) + return temp_filename + + fd, temp_filename = \ + tempfile.mkstemp("", basename + "._checksum_failure_.", distdir) + os.close(fd) + os.rename(filename, temp_filename) + return temp_filename + +def _check_digests(filename, digests, show_errors=1): + """ + Check digests and display a message if an error occurs. + @return True if all digests match, False otherwise. + """ + verified_ok, reason = verify_all(filename, digests) + if not verified_ok: + if show_errors: + writemsg(_("!!! Previously fetched" + " file: '%s'\n") % filename, noiselevel=-1) + writemsg(_("!!! Reason: %s\n") % reason[0], + noiselevel=-1) + writemsg(_("!!! Got: %s\n" + "!!! Expected: %s\n") % \ + (reason[1], reason[2]), noiselevel=-1) + return False + return True + +def _check_distfile(filename, digests, eout, show_errors=1): + """ + @return a tuple of (match, stat_obj) where match is True if filename + matches all given digests (if any) and stat_obj is a stat result, or + None if the file does not exist. + """ + if digests is None: + digests = {} + size = digests.get("size") + if size is not None and len(digests) == 1: + digests = None + + try: + st = os.stat(filename) + except OSError: + return (False, None) + if size is not None and size != st.st_size: + return (False, st) + if not digests: + if size is not None: + eout.ebegin(_("%s size ;-)") % os.path.basename(filename)) + eout.eend(0) + elif st.st_size == 0: + # Zero-byte distfiles are always invalid. + return (False, st) + else: + if _check_digests(filename, digests, show_errors=show_errors): + eout.ebegin("%s %s ;-)" % (os.path.basename(filename), + " ".join(sorted(digests)))) + eout.eend(0) + else: + return (False, st) + return (True, st) + +_fetch_resume_size_re = re.compile('(^[\d]+)([KMGTPEZY]?$)') + +_size_suffix_map = { + '' : 0, + 'K' : 10, + 'M' : 20, + 'G' : 30, + 'T' : 40, + 'P' : 50, + 'E' : 60, + 'Z' : 70, + 'Y' : 80, +} + +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] + + 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 = 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_indexes={} + 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: + random.shuffle(thirdpartymirrors[mirrorname]) + + uris = [locmirr.rstrip("/") + "/" + path \ + for locmirr in thirdpartymirrors[mirrorname]] + 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 + if "primaryuri" in restrict: + # Use the source site first. + if myfile in primaryuri_indexes: + primaryuri_indexes[myfile] += 1 + else: + primaryuri_indexes[myfile] = 0 + filedict[myfile].insert(primaryuri_indexes[myfile], myuri) + else: + filedict[myfile].append(myuri) + primaryuris = primaryuri_dict.get(myfile) + if primaryuris is None: + primaryuris = [] + primaryuri_dict[myfile] = primaryuris + primaryuris.append(myuri) + + # 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) + + 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 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 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) + if match: + if distdir_writable: + 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) + 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 + + 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: + 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) + + # 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: + verified_ok, reason = verify_all( + myfile_path, mydigests[myfile]) + 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" + digests = mydigests.get(myfile) + 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") % \ + re.sub(r'//(.+):.+@(.+)/',r'//\1:*password*@\2/', 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) + if html404.search(io.open( + _unicode_encode(myfile_path, + encoding=_encodings['fs'], errors='strict'), + mode='r', encoding=_encodings['content'], errors='replace' + ).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... + verified_ok,reason = verify_all(mysettings["DISTDIR"]+"/"+myfile, mydigests[myfile]) + if not verified_ok: + print(reason) + 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" + digests = mydigests.get(myfile) + 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 |