/usr/share/pyshared/aptdaemon/worker.py is in python-aptdaemon 0.43+bzr805-0ubuntu10.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 | #!/usr/bin/env python
# -*- coding: utf-8 -*-
"""Provides AptWorker which processes transactions."""
# Copyright (C) 2008-2009 Sebastian Heinlein <devel@glatzor.de>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
__author__ = "Sebastian Heinlein <devel@glatzor.de>"
__all__ = ("AptWorker", "DummyWorker")
import contextlib
import logging
import os
import re
import shutil
import sys
import tempfile
import time
import traceback
import apt
import apt.cache
import apt.debfile
import apt_pkg
import aptsources
import aptsources.distro
from aptsources.sourceslist import SourcesList
from gi.repository import GObject
import lsb_release
import pkg_resources
from softwareproperties.AptAuth import AptAuth
import subprocess
from .enums import *
from .errors import *
from . import lock
from .loop import mainloop
from .progress import DaemonOpenProgress, \
DaemonInstallProgress, \
DaemonAcquireProgress, \
DaemonAcquireRepoProgress, \
DaemonDpkgInstallProgress, \
DaemonDpkgReconfigureProgress, \
DaemonDpkgRecoverProgress
log = logging.getLogger("AptDaemon.Worker")
# Just required to detect translatable strings. The translation is done by
# core.Transaction.gettext
_ = lambda s: s
@contextlib.contextmanager
def set_euid_egid(uid, gid):
# no need to drop privs
if os.getuid() != 0 and os.getgid() != 0:
yield
return
# temporary drop privs
os.setegid(gid)
old_groups = os.getgroups()
os.setgroups([gid])
os.seteuid(uid)
try:
yield
finally:
os.seteuid(os.getuid())
os.setegid(os.getgid())
os.setgroups(old_groups)
class AptWorker(GObject.GObject):
"""Worker which processes transactions from the queue."""
__gsignals__ = {"transaction-done":(GObject.SignalFlags.RUN_FIRST,
None,
(GObject.TYPE_PYOBJECT,)),
"transaction-simulated":(GObject.SignalFlags.RUN_FIRST,
None,
(GObject.TYPE_PYOBJECT,))}
# the basedir under which license keys can be stored
LICENSE_KEY_ROOTDIR = "/opt/"
def __init__(self, chroot=None, load_plugins=True):
"""Initialize a new AptWorker instance."""
GObject.GObject.__init__(self)
self.trans = None
self.last_action_timestamp = time.time()
self._cache = None
# Store the the tid of the transaction whose changes are currently
# marked in the cache
self.marked_tid = None
# Change to a given chroot
if chroot:
apt_conf_file = os.path.join(chroot, "etc/apt/apt.conf")
if os.path.exists(apt_conf_file):
apt_pkg.read_config_file(apt_pkg.config, apt_conf_file)
apt_conf_dir = os.path.join(chroot, "etc/apt/apt.conf.d")
if os.path.isdir(apt_conf_dir):
apt_pkg.read_config_dir(apt_pkg.config, apt_conf_dir)
apt_pkg.config["Dir"] = chroot
apt_pkg.config["Dir::State::Status"] = os.path.join(chroot,
"var/lib/dpkg/status")
apt_pkg.config.clear("DPkg::Post-Invoke")
apt_pkg.config.clear("DPkg::Options")
apt_pkg.config["DPkg::Options::"] = "--root=%s" % chroot
apt_pkg.config["DPkg::Options::"] = "--log=%s/var/log/dpkg.log" % \
chroot
status_file = apt_pkg.config.find_file("Dir::State::status")
lock.status_lock.path = os.path.join(os.path.dirname(status_file),
"lock")
archives_dir = apt_pkg.config.find_dir("Dir::Cache::Archives")
lock.archive_lock.path = os.path.join(archives_dir, "lock")
lists_dir = apt_pkg.config.find_dir("Dir::State::lists")
lock.lists_lock.path = os.path.join(lists_dir, "lock")
apt_pkg.init_system()
self._status_orig = apt_pkg.config.find_file("Dir::State::status")
self._status_frozen = None
self.plugins = {}
if load_plugins:
self._load_plugins()
def _load_plugins(self):
"""Load the plugins from setuptools' entry points."""
plugin_dirs = [os.path.join(os.path.dirname(__file__), "plugins")]
env = pkg_resources.Environment(plugin_dirs)
dists, errors = pkg_resources.working_set.find_plugins(env)
for dist in dists:
pkg_resources.working_set.add(dist)
for name in ["modify_cache_after", "modify_cache_before",
"get_license_key"]:
for ept in pkg_resources.iter_entry_points("aptdaemon.plugins",
name):
try:
self.plugins.setdefault(name, []).append(ept.load())
except:
log.critical("Failed to load %s plugin: "
"%s" % (name, ept.dist))
else:
log.debug("Loaded %s plugin: %s", name, ept.dist)
def _call_plugins(self, name, resolver=None):
"""Call all plugins of a given type."""
if not resolver:
# If the resolver of the original task isn't available we create
# a new one and protect the already marked changes
resolver = apt.cache.ProblemResolver(self._cache)
for pkg in self._cache.get_changes():
resolver.clear(pkg)
resolver.protect(pkg)
if pkg.marked_delete:
resolver.remove(pkg)
if not name in self.plugins:
log.debug("There isn't any registered %s plugin" % name)
return False
for plugin in self.plugins[name]:
log.debug("Calling %s plugin: %s", name, plugin)
try:
plugin(resolver, self._cache)
except Exception as error:
log.critical("Failed to call %s plugin:\n%s" % (plugin, error))
return True
def run(self, transaction):
"""Process the given transaction in the background.
Keyword argument:
transaction -- core.Transcation instance to run
"""
log.info("Processing transaction %s", transaction.tid)
if self.trans:
raise Exception("There is already a running transaction")
self.trans = transaction
GObject.idle_add(self._process_transaction, transaction)
def _emit_transaction_simulated(self, trans):
"""Emit the transaction-simulated signal.
Keyword argument:
trans -- the simulated transaction
"""
log.debug("Emitting transaction-simulated: %s", trans.tid)
self.emit("transaction-simulated", trans)
def _emit_transaction_done(self, trans):
"""Emit the transaction-done signal.
Keyword argument:
trans -- the finished transaction
"""
log.debug("Emitting transaction-done: %s", trans.tid)
self.emit("transaction-done", trans)
def _process_transaction(self, trans):
"""Run the worker"""
self.last_action_timestamp = time.time()
trans.status = STATUS_RUNNING
trans.progress = 11
try:
lock.wait_for_lock(trans)
# Prepare the package cache
if trans.role == ROLE_FIX_INCOMPLETE_INSTALL or \
not self.is_dpkg_journal_clean():
self.fix_incomplete_install(trans)
# Process transaction which don't require a cache
if trans.role == ROLE_ADD_VENDOR_KEY_FILE:
self.add_vendor_key_from_file(trans, **trans.kwargs)
elif trans.role == ROLE_ADD_VENDOR_KEY_FROM_KEYSERVER:
self.add_vendor_key_from_keyserver(trans, **trans.kwargs)
elif trans.role == ROLE_REMOVE_VENDOR_KEY:
self.remove_vendor_key(trans, **trans.kwargs)
elif trans.role == ROLE_ADD_REPOSITORY:
self.add_repository(trans, **trans.kwargs)
elif trans.role == ROLE_ENABLE_DISTRO_COMP:
self.enable_distro_comp(trans, **trans.kwargs)
elif trans.role == ROLE_RECONFIGURE:
self.reconfigure(trans, trans.packages[PKGS_REINSTALL],
**trans.kwargs)
elif trans.role == ROLE_CLEAN:
self.clean(trans)
# Check if the transaction has been just simulated. So we could
# skip marking the changes a second time.
elif trans.role in (ROLE_REMOVE_PACKAGES, ROLE_INSTALL_PACKAGES,
ROLE_UPGRADE_PACKAGES, ROLE_COMMIT_PACKAGES,
ROLE_UPGRADE_SYSTEM,
ROLE_FIX_BROKEN_DEPENDS) and \
self.marked_tid == trans.tid:
self._apply_changes(trans)
trans.exit = EXIT_SUCCESS
return False
else:
self._open_cache(trans)
# Process transaction which can handle a broken dep cache
if trans.role == ROLE_FIX_BROKEN_DEPENDS:
self.fix_broken_depends(trans)
elif trans.role == ROLE_UPDATE_CACHE:
self.update_cache(trans, **trans.kwargs)
# Process the transactions which require a consistent cache
elif trans.role == ROLE_ADD_LICENSE_KEY:
self.add_license_key(trans, **trans.kwargs)
elif self._cache and self._cache.broken_count:
broken = [pkg.name for pkg in self._cache if pkg.is_now_broken]
raise TransactionFailed(ERROR_CACHE_BROKEN,
self._get_broken_details(trans))
if trans.role == ROLE_PK_QUERY:
self.query(trans)
elif trans.role == ROLE_INSTALL_FILE:
self.install_file(trans, **trans.kwargs)
elif trans.role in [ROLE_REMOVE_PACKAGES, ROLE_INSTALL_PACKAGES,
ROLE_UPGRADE_PACKAGES, ROLE_COMMIT_PACKAGES]:
self.commit_packages(trans, *trans.packages)
elif trans.role == ROLE_UPGRADE_SYSTEM:
self.upgrade_system(trans, **trans.kwargs)
except TransactionCancelled:
trans.exit = EXIT_CANCELLED
except TransactionFailed as excep:
trans.error = excep
trans.exit = EXIT_FAILED
except (KeyboardInterrupt, SystemExit):
trans.exit = EXIT_CANCELLED
except Exception as excep:
tbk = traceback.format_exc()
trans.error = TransactionFailed(ERROR_UNKNOWN, tbk)
trans.exit = EXIT_FAILED
try:
from . import crash
except ImportError:
pass
else:
crash.create_report("%s: %s" % (type(excep), str(excep)),
tbk, trans)
else:
trans.exit = EXIT_SUCCESS
finally:
trans.progress = 100
self.last_action_timestamp = time.time()
tid = trans.tid[:]
self.trans = None
self.marked_tid = None
self._emit_transaction_done(trans)
lock.release()
log.info("Finished transaction %s", tid)
return False
def commit_packages(self, trans, install, reinstall, remove, purge, upgrade,
downgrade, simulate=False):
"""Perform a complex package operation.
Keyword arguments:
trans - the transaction
install - list of package names to install
reinstall - list of package names to reinstall
remove - list of package names to remove
purge - list of package names to purge including configuration files
upgrade - list of package names to upgrade
downgrade - list of package names to upgrade
simulate -- if True the changes won't be applied
"""
log.info("Committing packages: %s, %s, %s, %s, %s, %s",
install, reinstall, remove, purge, upgrade, downgrade)
with self._cache.actiongroup():
resolver = apt.cache.ProblemResolver(self._cache)
self._mark_packages_for_installation(install, resolver)
self._mark_packages_for_installation(reinstall, resolver,
reinstall=True)
self._mark_packages_for_removal(remove, resolver)
self._mark_packages_for_removal(purge, resolver, purge=True)
self._mark_packages_for_upgrade(upgrade, resolver)
self._mark_packages_for_downgrade(downgrade, resolver)
self._resolve_depends(trans, resolver)
self._check_obsoleted_dependencies(trans, resolver)
if not simulate:
self._apply_changes(trans)
def _resolve_depends(self, trans, resolver):
"""Resolve the dependencies using the given ProblemResolver."""
self._call_plugins("modify_cache_before", resolver)
resolver.install_protect()
try:
resolver.resolve()
except SystemError:
raise TransactionFailed(ERROR_DEP_RESOLUTION_FAILED,
self._get_broken_details(trans, now=False))
if self._call_plugins("modify_cache_after", resolver):
try:
resolver.resolve()
except SystemError:
details = self._get_broken_details(trans, now=False)
raise TransactionFailed(ERROR_DEP_RESOLUTION_FAILED, details)
@staticmethod
def _split_package_id(package):
"""Return the name, the version number and the release of the
specified package."""
if "=" in package:
name, version = package.split("=", 1)
release = None
elif "/" in package:
name, release = package.split("/", 1)
version = None
else:
name = package
version = release = None
return name, version, release
def _get_unauthenticated(self):
"""Return a list of unauthenticated package names """
unauthenticated = []
for pkg in self._iterate_packages():
if (pkg.marked_install or
pkg.marked_downgrade or
pkg.marked_upgrade or
pkg.marked_reinstall):
trusted = False
for origin in pkg.candidate.origins:
trusted |= origin.trusted
if not trusted:
unauthenticated.append(pkg.name)
return unauthenticated
def _mark_packages_for_installation(self, packages, resolver,
reinstall=False):
"""Mark packages for installation."""
for pkg_name, pkg_ver, pkg_rel in [self._split_package_id(pkg)
for pkg in packages]:
try:
pkg = self._cache[pkg_name]
except KeyError:
raise TransactionFailed(ERROR_NO_PACKAGE,
_("Package %s isn't available"),
pkg_name)
if reinstall:
if not pkg.is_installed:
raise TransactionFailed(ERROR_PACKAGE_NOT_INSTALLED,
_("Package %s isn't installed"),
pkg.name)
if pkg_ver and pkg.installed.version != pkg_ver:
raise TransactionFailed(ERROR_PACKAGE_NOT_INSTALLED,
_("The version %s of %s isn't "
"installed"),
pkg_ver, pkg_name)
else:
# Fail if the user requests to install the same version
# of an already installed package.
if (pkg.is_installed and
# Compare version numbers
pkg_ver and pkg_ver == pkg.installed.version and
# Optionally compare the origin if specified
(not pkg_rel or
pkg_rel in [origin.archive for
origin in pkg.installed.origins])):
raise TransactionFailed(ERROR_PACKAGE_ALREADY_INSTALLED,
_("Package %s is already "
"installed"), pkg_name)
pkg.mark_install(False, True, True)
resolver.clear(pkg)
resolver.protect(pkg)
if pkg_ver:
try:
pkg.candidate = pkg.versions[pkg_ver]
except KeyError:
raise TransactionFailed(ERROR_NO_PACKAGE,
_("The version %s of %s isn't "
"available."), pkg_ver, pkg_name)
elif pkg_rel:
self._set_candidate_release(pkg, pkg_rel)
def enable_distro_comp(self, trans, component):
"""Enable given component in the sources list.
Keyword arguments:
trans -- the corresponding transaction
component -- a component, e.g. main or universe
"""
trans.progress = 101
trans.status = STATUS_COMMITTING
old_umask = os.umask(0022)
try:
sourceslist = SourcesList()
distro = aptsources.distro.get_distro()
distro.get_sources(sourceslist)
distro.enable_component(component)
sourceslist.save()
finally:
os.umask(old_umask)
def add_repository(self, trans, src_type, uri, dist, comps, comment, sourcesfile):
"""Add given repository to the sources list.
Keyword arguments:
trans -- the corresponding transaction
src_type -- the type of the entry (deb, deb-src)
uri -- the main repository uri (e.g. http://archive.ubuntu.com/ubuntu)
dist -- the distribution to use (e.g. karmic, "/")
comps -- a (possible empty) list of components (main, restricted)
comment -- an (optional) comment
sourcesfile -- an (optinal) filename in sources.list.d
"""
trans.progress = 101
trans.status = STATUS_COMMITTING
if sourcesfile:
if not sourcesfile.endswith(".list"):
sourcesfile += ".list"
dir = apt_pkg.config.find_dir("Dir::Etc::sourceparts")
sourcesfile = os.path.join(dir, os.path.basename(sourcesfile))
else:
sourcesfile = None
# Store any private login information in a separate auth.conf file
if re.match("(http|https|ftp)://\S+?:\S+?@\S+", uri):
uri = self._store_and_strip_password_from_uri(uri)
auth_conf_path = apt_pkg.config.find_file("Dir::etc::netrc")
if not comment:
comment = "credentials stored in %s" % auth_conf_path
else:
comment += "; credentials stored in %s" % auth_conf_path
try:
sources = SourcesList()
entry = sources.add(src_type, uri, dist, comps, comment,
file=sourcesfile)
if entry.invalid:
#FIXME: Introduce new error codes
raise RepositoryInvalidError()
except:
log.exception("adding repository")
raise
else:
sources.save()
def _store_and_strip_password_from_uri(self, uri):
"""Extract the credentials from an URI. Store the password in
auth.conf and return the URI without any password information.
"""
from urlparse import urlsplit, urlunsplit
try:
res = urlsplit(uri)
except ValueError as error:
log.warn("Failed to urlsplit '%s'", error)
return uri
netloc_public = res.netloc.replace("%s:%s@" % (res.username,
res.password),
"")
# write auth.conf
auth_conf_path = apt_pkg.config.find_file("Dir::etc::netrc")
old_umask = os.umask(0027)
try:
with open(auth_conf_path, "a") as auth_conf:
auth_conf.write("""machine %s
login %s
password %s\n\n""" % (netloc_public + res.path, res.username, res.password))
except OSError as error:
log.warn("Failed to write auth.conf: '%s'" % error)
finally:
os.umask(old_umask)
# Return URI without user/pass
return urlunsplit((res.scheme, netloc_public, res.path, res.query,
res.fragment))
def add_vendor_key_from_keyserver(self, trans, keyid, keyserver):
"""Add the signing key from the given (keyid, keyserver) to the
trusted vendors.
Keyword argument:
trans -- the corresponding transaction
keyid - the keyid of the key (e.g. 0x0EB12F05)
keyserver - the keyserver (e.g. keyserver.ubuntu.com)
"""
log.info("Adding vendor key from keyserver: %s %s", keyid, keyserver)
trans.status = STATUS_DOWNLOADING
trans.progress = 101
last_pulse = time.time()
#FIXME: Use GObject.spawn_async and deferreds in the worker
# Alternatively we could use python-pyme directly for a better
# error handling. Or the --status-fd of gpg
proc = subprocess.Popen(
["/usr/share/aptdaemon/aptd-import-from-keyserver",
keyid, keyserver],
stderr=subprocess.STDOUT, stdout=subprocess.PIPE, close_fds=True)
while proc.poll() is None:
self._iterate_mainloop()
time.sleep(0.05)
if time.time() - last_pulse > 0.3:
trans.progress = 101
last_pulse = time.time()
if proc.returncode != 0:
stdout = unicode(proc.stdout.read(),
# that can return "None", in this case, just
# assume something
sys.stdin.encoding or "UTF-8",
errors="replace")
#TRANSLATORS: The first %s is the key id and the second the server
raise TransactionFailed(ERROR_KEY_NOT_INSTALLED,
_("Failed to download and install the key "
"%s from %s:\n%s"),
keyid, keyserver, stdout)
def add_vendor_key_from_file(self, trans, path):
"""Add the signing key from the given file to the trusted vendors.
Keyword argument:
path -- absolute path to the key file
"""
log.info("Adding vendor key from file: %s", path)
trans.progress = 101
trans.status = STATUS_COMMITTING
try:
#FIXME: use GObject.spawn_async or reactor.spawn
#FIXME: use --dry-run before?
auth = AptAuth()
auth.add(os.path.expanduser(path))
except Exception as error:
raise TransactionFailed(ERROR_KEY_NOT_INSTALLED,
_("Key file %s couldn't be installed: %s"),
path, error)
def remove_vendor_key(self, trans, fingerprint):
"""Remove repository key.
Keyword argument:
trans -- the corresponding transaction
fingerprint -- fingerprint of the key to remove
"""
log.info("Removing vendor key: %s", fingerprint)
trans.progress = 101
trans.status = STATUS_COMMITTING
try:
#FIXME: use GObject.spawn_async or reactor.spawn
#FIXME: use --dry-run before?
auth = AptAuth()
auth.rm(fingerprint)
except Exception as error:
raise TransactionFailed(ERROR_KEY_NOT_REMOVED,
_("Key with fingerprint %s couldn't be "
"removed: %s"), fingerprint, error)
def install_file(self, trans, path, force, simulate=False):
"""Install local package file.
Keyword argument:
trans -- the corresponding transaction
path -- absolute path to the package file
force -- if installing an invalid package is allowed
simulate -- if True the changes won't be committed but the debfile
instance will be returned
"""
log.info("Installing local package file: %s", path)
# Check if the dpkg can be installed at all
trans.status = STATUS_RESOLVING_DEP
deb = self._check_deb_file(path, force, trans.uid, trans.gid)
# Check for required changes and apply them before
(install, remove, unauth) = deb.required_changes
self._call_plugins("modify_cache_after")
if simulate:
return deb
with self._frozen_status():
if len(install) > 0 or len(remove) > 0:
dpkg_range = (64, 99)
self._apply_changes(trans, fetch_range=(15, 33),
install_range=(34, 63))
# Install the dpkg file
deb_progress = DaemonDpkgInstallProgress(trans, begin=64, end=95)
res = deb.install(deb_progress)
encoding = sys.getfilesystemencoding()
trans.output += deb_progress.output.decode(encoding, "ignore")
if res:
raise TransactionFailed(ERROR_PACKAGE_MANAGER_FAILED,
trans.output)
def _mark_packages_for_removal(self, packages, resolver, purge=False):
"""Mark packages for installation."""
for pkg_name, pkg_ver, pkg_rel in [self._split_package_id(pkg)
for pkg in packages]:
try:
pkg = self._cache[pkg_name]
except KeyError:
raise TransactionFailed(ERROR_NO_PACKAGE,
_("Package %s isn't available"),
pkg_name)
if not pkg.is_installed and not pkg.installed_files:
raise TransactionFailed(ERROR_PACKAGE_NOT_INSTALLED,
_("Package %s isn't installed"),
pkg_name)
if pkg.essential == True:
raise TransactionFailed(ERROR_NOT_REMOVE_ESSENTIAL_PACKAGE,
_("Package %s cannot be removed."),
pkg_name)
if pkg_ver and pkg.installed != pkg_ver:
raise TransactionFailed(ERROR_PACKAGE_NOT_INSTALLED,
_("The version %s of %s is not "
"installed"), pkg_ver, pkg_name)
pkg.mark_delete(False, purge)
resolver.clear(pkg)
resolver.protect(pkg)
resolver.remove(pkg)
def _check_obsoleted_dependencies(self, trans, resolver=None):
"""Mark obsoleted dependencies of to be removed packages for removal."""
if not trans.remove_obsoleted_depends:
return
if not resolver:
resolver = apt.cache.ProblemResolver(self._cache)
installed_deps = set()
with self._cache.actiongroup():
for pkg in self._iterate_packages():
if pkg.marked_delete:
installed_deps = self._installed_dependencies(pkg.name,
installed_deps)
for dep_name in installed_deps:
if dep_name in self._cache:
pkg = self._cache[dep_name]
if pkg.is_installed and pkg.is_auto_removable:
pkg.mark_delete(False)
# do an additional resolver run to ensure that the autoremove
# never leaves the cache in an inconsistent state, see bug
# LP: #659111 for the rational, essentially this may happen
# if a package is marked install during problem resolving but
# is later no longer required. the resolver deals with that
self._resolve_depends(trans, resolver)
def _installed_dependencies(self, pkg_name, all_deps=None):
"""Recursively return all installed dependencies of a given package."""
#FIXME: Should be part of python-apt, since it makes use of non-public
# API. Perhaps by adding a recursive argument to
# apt.package.Version.get_dependencies()
if not all_deps:
all_deps = set()
if not pkg_name in self._cache:
return all_deps
cur = self._cache[pkg_name]._pkg.current_ver
if not cur:
return all_deps
for sec in ("PreDepends", "Depends", "Recommends"):
try:
for dep in cur.depends_list[sec]:
dep_name = dep[0].target_pkg.name
if not dep_name in all_deps:
all_deps.add(dep_name)
all_deps |= self._installed_dependencies(dep_name,
all_deps)
except KeyError:
pass
return all_deps
def _mark_packages_for_downgrade(self, packages, resolver):
"""Mark packages for downgrade."""
for pkg_name, pkg_ver, pkg_rel in [self._split_package_id(pkg)
for pkg in packages]:
try:
pkg = self._cache[pkg_name]
except KeyError:
raise TransactionFailed(ERROR_NO_PACKAGE,
_("Package %s isn't available"),
pkg_name)
if not pkg.is_installed:
raise TransactionFailed(ERROR_PACKAGE_NOT_INSTALLED,
_("Package %s isn't installed"),
pkg_name)
auto = pkg.is_auto_installed
pkg.mark_install(False, True, True)
pkg.mark_auto(auto)
resolver.clear(pkg)
resolver.protect(pkg)
if pkg_ver:
if pkg.installed and pkg.installed.version < pkg_ver:
#FIXME: We need a new error enum
raise TransactionFailed(ERROR_NO_PACKAGE,
_("The former version %s of %s " \
"is already installed"),
pkg.installed.version, pkg.name)
elif pkg.installed and pkg.installed.version == pkg_ver:
raise TransactionFailed(ERROR_PACKAGE_ALREADY_INSTALLED,
_("The version %s of %s "
"is already installed"),
pkg.installed.version, pkg.name)
try:
pkg.candidate = pkg.versions[pkg_ver]
except KeyError:
raise TransactionFailed(ERROR_NO_PACKAGE,
_("The version %s of %s isn't "
"available"), pkg_ver, pkg_name)
else:
raise TransactionFailed(ERROR_NO_PACKAGE,
_("You need to specify a version to " \
"downgrade %s to"), pkg_name)
def _mark_packages_for_upgrade(self, packages, resolver):
"""Mark packages for upgrade."""
for pkg_name, pkg_ver, pkg_rel in [self._split_package_id(pkg)
for pkg in packages]:
try:
pkg = self._cache[pkg_name]
except KeyError:
raise TransactionFailed(ERROR_NO_PACKAGE,
_("Package %s isn't available"),
pkg_name)
if not pkg.is_installed:
raise TransactionFailed(ERROR_PACKAGE_NOT_INSTALLED,
_("Package %s isn't installed"),
pkg_name)
auto = pkg.is_auto_installed
pkg.mark_install(False, True, True)
pkg.mark_auto(auto)
resolver.clear(pkg)
resolver.protect(pkg)
if pkg_ver:
if (pkg.installed and
apt_pkg.version_compare(pkg.installed.version,
pkg_ver) == 1):
raise TransactionFailed(ERROR_PACKAGE_UPTODATE,
_("The later version %s of %s "
"is already installed"),
pkg.installed.version, pkg.name)
elif (pkg.installed and
apt_pkg.version_compare(pkg.installed.version,
pkg_ver) == 0):
raise TransactionFailed(ERROR_PACKAGE_UPTODATE,
_("The version %s of %s "
"is already installed"),
pkg.installed.version, pkg.name)
try:
pkg.candidate = pkg.versions[pkg_ver]
except KeyError:
raise TransactionFailed(ERROR_NO_PACKAGE,
_("The version %s of %s isn't "
"available."), pkg_ver, pkg_name)
elif pkg_rel:
self._set_candidate_release(pkg, pkg_rel)
@staticmethod
def _set_candidate_release(pkg, release):
"""Set the candidate of a package to the one from the given release."""
#FIXME: Should be moved to python-apt
# Check if the package is provided in the release
for version in pkg.versions:
if [origin for origin in version.origins
if origin.archive == release]:
break
else:
raise TransactionFailed(ERROR_NO_PACKAGE,
_("The package %s isn't available in "
"the %s release."), pkg.name, release)
pkg._pcache.cache_pre_change()
pkg._pcache._depcache.set_candidate_release(pkg._pkg, version._cand,
release)
pkg._pcache.cache_post_change()
def update_cache(self, trans, sources_list):
"""Update the cache.
Keyword arguments:
trans -- the corresponding transaction
sources_list -- only update the repositories found in the sources.list
snippet by the given file name.
"""
log.info("Updating cache")
def compare_pathes(first, second):
"""Small helper to compare two pathes."""
return os.path.normpath(first) == os.path.normpath(second)
progress = DaemonAcquireRepoProgress(trans, begin=10, end=90)
if sources_list and not sources_list.startswith("/"):
dir = apt_pkg.config.find_dir("Dir::Etc::sourceparts")
sources_list = os.path.join(dir, sources_list)
if sources_list:
# For security reasons (LP #722228) we only allow files inside
# sources.list.d as basedir
basedir = apt_pkg.config.find_dir("Dir::Etc::sourceparts")
system_sources = apt_pkg.config.find_file("Dir::Etc::sourcelist")
if "/" in sources_list:
sources_list = os.path.abspath(sources_list)
# Check if the sources_list snippet is in the sourceparts
# directory
common_prefix = os.path.commonprefix([sources_list, basedir])
if not (compare_pathes(common_prefix, basedir) or
compare_pathes(sources_list, system_sources)):
raise AptDaemonError("Only alternative sources.list files "
"inside '%s' are allowed (not '%s')" \
% (basedir, sources_list))
else:
sources_list = os.path.join(basedir, sources_list)
try:
self._cache.update(progress, sources_list=sources_list)
except apt.cache.FetchFailedException as error:
# ListUpdate() method of apt handles a cancelled operation
# as a failed one, see LP #162441
if trans.cancelled:
raise TransactionCancelled()
else:
raise TransactionFailed(ERROR_REPO_DOWNLOAD_FAILED,
str(error))
except apt.cache.FetchCancelledException:
raise TransactionCancelled()
except apt.cache.LockFailedException:
raise TransactionFailed(ERROR_NO_LOCK)
self._open_cache(trans, begin=91, end=95)
def upgrade_system(self, trans, safe_mode=True, simulate=False):
"""Upgrade the system.
Keyword argument:
trans -- the corresponding transaction
safe_mode -- if additional software should be installed or removed to
satisfy the dependencies the an updates
simulate -- if the changes should not be applied
"""
log.info("Upgrade system with safe mode: %s" % safe_mode)
trans.status = STATUS_RESOLVING_DEP
#FIXME: What to do if already uptotdate? Add error code?
self._call_plugins("modify_cache_before")
try:
self._cache.upgrade(dist_upgrade=not safe_mode)
except SystemError as excep:
raise TransactionFailed(ERROR_DEP_RESOLUTION_FAILED, str(excep))
self._call_plugins("modify_cache_after")
self._check_obsoleted_dependencies(trans)
if not simulate:
self._apply_changes(trans)
def fix_incomplete_install(self, trans):
"""Run dpkg --configure -a to recover from a failed installation.
Keyword arguments:
trans -- the corresponding transaction
"""
log.info("Fixing incomplete installs")
trans.status = STATUS_CLEANING_UP
progress = DaemonDpkgRecoverProgress(trans)
with self._frozen_status():
progress.start_update()
progress.run()
progress.finish_update()
trans.output += progress.output.decode(sys.getfilesystemencoding(),
"ignore")
if progress._child_exit != 0:
raise TransactionFailed(ERROR_PACKAGE_MANAGER_FAILED,
trans.output)
def reconfigure(self, trans, packages, priority):
"""Run dpkg-reconfigure to reconfigure installed packages.
Keyword arguments:
trans -- the corresponding transaction
packages -- list of packages to reconfigure
priority -- the lowest priority of question which should be asked
"""
log.info("Reconfiguring packages")
progress = DaemonDpkgReconfigureProgress(trans)
with self._frozen_status():
progress.start_update()
progress.run(packages, priority)
progress.finish_update()
trans.output += progress.output.decode(sys.getfilesystemencoding(),
"ignore")
if progress._child_exit != 0:
raise TransactionFailed(ERROR_PACKAGE_MANAGER_FAILED,
trans.output)
def fix_broken_depends(self, trans, simulate=False):
"""Try to fix broken dependencies.
Keyword arguments:
trans -- the corresponding transaction
simualte -- if the changes should not be applied
"""
log.info("Fixing broken depends")
trans.status = STATUS_RESOLVING_DEP
try:
self._cache._depcache.fix_broken()
except SystemError:
raise TransactionFailed(ERROR_DEP_RESOLUTION_FAILED,
self._get_broken_details(trans))
if not simulate:
self._apply_changes(trans)
def _open_cache(self, trans, begin=1, end=5, quiet=False, status=None):
"""Open the APT cache.
Keyword arguments:
trans -- the corresponding transaction
start -- the begin of the progress range
end -- the end of the the progress range
quiet -- if True do no report any progress
status -- an alternative dpkg status file
"""
self.marked_tid = None
trans.status = STATUS_LOADING_CACHE
if not status:
status = self._status_orig
apt_pkg.config.set("Dir::State::status", status)
apt_pkg.init_system()
progress = DaemonOpenProgress(trans, begin=begin, end=end,
quiet=quiet)
try:
if not isinstance(self._cache, apt.cache.Cache):
self._cache = apt.cache.Cache(progress)
else:
self._cache.open(progress)
except SystemError as excep:
raise TransactionFailed(ERROR_NO_CACHE, str(excep))
def is_dpkg_journal_clean(self):
"""Return False if there are traces of incomplete dpkg status
updates."""
status_updates = os.path.join(os.path.dirname(self._status_orig),
"updates/")
for dentry in os.listdir(status_updates):
if dentry.isdigit():
return False
return True
def _apply_changes(self, trans, fetch_range=(15, 50),
install_range=(50, 90)):
"""Apply previously marked changes to the system.
Keyword arguments:
trans -- the corresponding transaction
fetch_range -- tuple containing the start and end point of the
download progress
install_range -- tuple containing the start and end point of the
install progress
"""
changes = self._cache.get_changes()
if not changes:
return
# Do not allow to remove essential packages
for pkg in changes:
if pkg.marked_delete and (pkg.essential == True or \
(pkg.installed and \
pkg.installed.priority == "required") or\
pkg.name == "aptdaemon"):
raise TransactionFailed(ERROR_NOT_REMOVE_ESSENTIAL_PACKAGE,
_("Package %s cannot be removed"),
pkg.name)
# Check if any of the cache changes get installed from an
# unauthenticated repository""
if not trans.allow_unauthenticated and trans.unauthenticated:
raise TransactionFailed(ERROR_PACKAGE_UNAUTHENTICATED,
" ".join(sorted(trans.unauthenticated)))
if trans.cancelled:
raise TransactionCancelled()
trans.cancellable = False
fetch_progress = DaemonAcquireProgress(trans, begin=fetch_range[0],
end=fetch_range[1])
inst_progress = DaemonInstallProgress(trans, begin=install_range[0],
end=install_range[1])
with self._frozen_status():
try:
self._cache.commit(fetch_progress, inst_progress)
except apt.cache.FetchFailedException as error:
raise TransactionFailed(ERROR_PACKAGE_DOWNLOAD_FAILED,
str(error))
except apt.cache.FetchCancelledException:
raise TransactionCancelled()
except SystemError as excep:
# Run dpkg --configure -a to recover from a failed transaction
trans.status = STATUS_CLEANING_UP
progress = DaemonDpkgRecoverProgress(trans, begin=90, end=95)
progress.start_update()
progress.run()
progress.finish_update()
output = inst_progress.output + progress.output
trans.output += output.decode(sys.getfilesystemencoding(),
"ignore")
raise TransactionFailed(ERROR_PACKAGE_MANAGER_FAILED,
"%s: %s" % (excep, trans.output))
else:
enc = sys.getfilesystemencoding()
trans.output += inst_progress.output.decode(enc, "ignore")
@contextlib.contextmanager
def _frozen_status(self):
"""Freeze the status file to allow simulate operations during
a dpkg call."""
frozen_dir = tempfile.mkdtemp(prefix="aptdaemon-frozen-status")
shutil.copy(self._status_orig, frozen_dir)
self._status_frozen = os.path.join(frozen_dir, "status")
try:
yield
finally:
shutil.rmtree(frozen_dir)
self._status_frozen = None
def query(self, trans):
"""Process a PackageKit query transaction."""
raise NotImplementedError
def simulate(self, trans):
"""Return the dependencies which will be installed by the transaction,
the content of the dpkg status file after the transaction would have
been applied, the download size and the required disk space.
Keyword arguments:
trans -- the transaction which should be simulated
"""
log.info("Simulating trans: %s" % trans.tid)
trans.status = STATUS_RESOLVING_DEP
GObject.idle_add(self._simulate, trans)
def _simulate(self, trans):
try:
trans.depends, trans.download, trans.space, \
trans.unauthenticated = self.__simulate(trans)
except TransactionFailed as excep:
trans.error = excep
trans.exit = EXIT_FAILED
except Exception as excep:
tbk = traceback.format_exc()
trans.error = TransactionFailed(ERROR_UNKNOWN, tbk)
try:
from . import crash
except ImportError:
pass
else:
crash.create_report("%s: %s" % (type(excep), str(excep)),
tbk, trans)
trans.exit = EXIT_FAILED
else:
trans.status = STATUS_SETTING_UP
trans.simulated = time.time()
self.marked_tid = trans.tid
finally:
self._emit_transaction_simulated(trans)
self.last_action_timestamp = time.time()
return False
def __simulate(self, trans):
depends = [[], [], [], [], [], [], []]
unauthenticated = []
skip_pkgs = []
size = 0
installs = reinstalls = removals = purges = upgrades = upgradables = \
downgrades = []
# Only handle transaction which change packages
#FIXME: Add support for ROLE_FIX_INCOMPLETE_INSTALL
if trans.role not in [ROLE_INSTALL_PACKAGES, ROLE_UPGRADE_PACKAGES,
ROLE_UPGRADE_SYSTEM, ROLE_REMOVE_PACKAGES,
ROLE_COMMIT_PACKAGES, ROLE_INSTALL_FILE,
ROLE_FIX_BROKEN_DEPENDS]:
return depends, 0, 0, []
# If a transaction is currently running use the former status file
if self._status_frozen:
status_path = self._status_frozen
else:
status_path = self._status_orig
self._open_cache(trans, quiet=True, status=status_path)
if trans.role == ROLE_FIX_BROKEN_DEPENDS:
self.fix_broken_depends(trans, simulate=True)
elif self._cache.broken_count:
raise TransactionFailed(ERROR_CACHE_BROKEN,
self._get_broken_details(trans))
elif trans.role == ROLE_UPGRADE_SYSTEM:
for pkg in self._iterate_packages():
if pkg.is_upgradable:
upgradables.append(pkg)
self.upgrade_system(trans, simulate=True, **trans.kwargs)
elif trans.role == ROLE_INSTALL_FILE:
deb = self.install_file(trans, simulate=True, **trans.kwargs)
skip_pkgs.append(deb.pkgname)
try:
# Sometimes a thousands comma is used in packages
# See LP #656633
size = int(deb["Installed-Size"].replace(",", "")) * 1024
# Some packages ship really large install sizes e.g.
# openvpn access server, see LP #758837
if size > sys.maxint:
raise OverflowError("Size is too large: %s Bytes" % size)
except (KeyError, AttributeError, ValueError, OverflowError):
if not trans.kwargs["force"]:
msg = trans.gettext("The package doesn't provide a "
"valid Installed-Size control "
"field. See Debian Policy 5.6.20.")
raise TransactionFailed(ERROR_INVALID_PACKAGE_FILE, msg)
try:
pkg = self._cache[deb.pkgname]
except KeyError:
trans.packages = [[deb.pkgname], [], [], [], [], []]
else:
if pkg.is_installed:
# if we failed to get the size from the deb file do nor
# try to get the delta
if size != 0:
size -= pkg.installed.installed_size
trans.packages = [[], [deb.pkgname], [], [], [], []]
else:
trans.packages = [[deb.pkgname], [], [], [], [], []]
else:
#FIXME: ugly code to get the names of the packages
(installs, reinstalls, removals, purges,
upgrades, downgrades) = [[re.split("(=|/)", entry, 1)[0] \
for entry in lst] \
for lst in trans.packages]
self.commit_packages(trans, *trans.packages, simulate=True)
changes = self._cache.get_changes()
changes_names = []
# get the additional dependencies
for pkg in changes:
self._iterate_mainloop()
pkg_str = "%s=%s" % (pkg.name, pkg.candidate.version)
if pkg.marked_upgrade and pkg.is_installed and \
not pkg.name in upgrades:
depends[PKGS_UPGRADE].append(pkg_str)
elif pkg.marked_reinstall and not pkg.name in reinstalls:
depends[PKGS_REINSTALL].append(pkg_str)
elif pkg.marked_downgrade and not pkg.name in downgrades:
depends[PKGS_DOWNGRADE].append(pkg_str)
elif pkg.marked_install and not pkg.name in installs:
depends[PKGS_INSTALL].append(pkg_str)
elif pkg.marked_delete and not pkg.name in removals:
pkg_str = "%s=%s" % (pkg.name, pkg.installed.version)
depends[PKGS_REMOVE].append(pkg_str)
#FIXME: add support for purges
changes_names.append(pkg.name)
# get the unauthenticated packages
unauthenticated = self._get_unauthenticated()
# Check for skipped upgrades
for pkg in upgradables:
if pkg.marked_keep:
pkg_str = "%s=%s" % (pkg.name, pkg.candidate.version)
depends[PKGS_KEEP].append(pkg_str)
# apt.cache.Cache.required_download requires a clean cache. Under some
# strange circumstances it can fail (most likely an interrupted
# debconf question), see LP#659438
# Running dpkg --configure -a fixes the situation
try:
required_download = self._cache.required_download
except SystemError as error:
raise TransactionFailed(ERROR_INCOMPLETE_INSTALL, str(error))
required_space = size + self._cache.required_space
return depends, required_download, required_space, unauthenticated
def _check_deb_file(self, path, force, uid, gid):
"""Perform some basic checks for the Debian package.
:param trans: The transaction instance.
:returns: An apt.debfile.Debfile instance.
"""
#FIXME: Unblock lintian call
path = path.encode("UTF-8")
# This code runs as root for simulate and simulate requires no
# authentication - so we need to ensure we do not leak information
# about files here (LP: #1449587, CVE-2015-1323)
#
# Note that the actual lintian run is also droping privs (real,
# not just seteuid)
with set_euid_egid(uid, gid):
if not os.path.isfile(path):
raise TransactionFailed(ERROR_UNREADABLE_PACKAGE_FILE, path)
if not force and os.path.isfile("/usr/bin/lintian"):
tags_dir = os.path.join(apt_pkg.config.find_dir("Dir"),
"usr", "share", "aptdaemon")
try:
distro = lsb_release.get_distro_information()["ID"]
except KeyError:
distro = None
else:
tags_file = os.path.join(tags_dir,
"lintian-nonfatal.tags.%s" % distro)
tags_fatal_file = os.path.join(tags_dir,
"lintian-fatal.tags.%s" % distro)
if not distro or not os.path.exists(tags_file):
log.debug("Using default lintian tags file")
tags_file = os.path.join(tags_dir, "lintian-nonfatal.tags")
if not distro or not os.path.exists(tags_fatal_file):
log.debug("Using default lintian fatal tags file")
tags_fatal_file = os.path.join(tags_dir, "lintian-fatal.tags")
# Run linitan as the user who initiated the transaction
# Once with non fatal checks and a second time with the fatal
# checks which are not allowed to be overriden
nonfatal_args = ["/usr/bin/lintian", "--tags-from-file",
tags_file, path]
fatal_args = ["/usr/bin/lintian", "--tags-from-file",
tags_fatal_file, "--no-override", path]
for lintian_args in (nonfatal_args, fatal_args):
def _perm_drop_privs():
try:
os.setgroups([gid])
except OSError:
pass
os.setgid(gid)
os.setuid(uid)
proc = subprocess.Popen(lintian_args,
stderr=subprocess.STDOUT,
stdout=subprocess.PIPE, close_fds=True,
preexec_fn=_perm_drop_privs)
while proc.poll() is None:
self._iterate_mainloop()
time.sleep(0.05)
#FIXME: Add an error to catch return state 2 (failure)
if proc.returncode == 1:
stdout = unicode(proc.stdout.read(),
sys.stdin.encoding or "UTF-8",
errors="replace")
raise TransactionFailed(ERROR_INVALID_PACKAGE_FILE,
"Lintian check results for %s:"
"\n%s" % (path, stdout))
try:
deb = apt.debfile.DebPackage(path, self._cache)
except IOError:
raise TransactionFailed(ERROR_UNREADABLE_PACKAGE_FILE, path)
except Exception as error:
raise TransactionFailed(ERROR_INVALID_PACKAGE_FILE, str(error))
try:
ret = deb.check()
except Exception as error:
raise TransactionFailed(ERROR_DEP_RESOLUTION_FAILED, str(error))
if not ret:
raise TransactionFailed(ERROR_DEP_RESOLUTION_FAILED,
deb._failure_string)
return deb
def clean(self, trans):
"""Clean the download directories.
Keyword arguments:
trans -- the corresponding transaction
"""
#FIXME: Use pkgAcquire.Clean(). Currently not part of python-apt.
trans.status = STATUS_CLEANING_UP
archive_path = apt_pkg.config.find_dir("Dir::Cache::archives")
for dir in [archive_path, os.path.join(archive_path, "partial")]:
for filename in os.listdir(dir):
if filename == "lock":
continue
path = os.path.join(dir, filename)
if os.path.isfile(path):
log.debug("Removing file %s", path)
os.remove(path)
def add_license_key(self, trans, pkg_name, json_token, server_name):
"""Add a license key data to the given package.
Keyword arguemnts:
trans -- the coresponding transaction
pkg_name -- the name of the corresponding package
json_token -- the oauth token as json
server_name -- the server to use (ubuntu-production, ubuntu-staging)
"""
# set transaction state to downloading
trans.status = STATUS_DOWNLOADING
try:
license_key, license_key_path = \
self.plugins["get_license_key"][0](trans.uid, pkg_name,
json_token, server_name)
except Exception as error:
logging.exception("get_license_key plugin failed")
raise TransactionFailed(ERROR_LICENSE_KEY_DOWNLOAD_FAILED,
str(error))
# ensure stuff is good
if not license_key_path or not license_key:
raise TransactionFailed(ERROR_LICENSE_KEY_DOWNLOAD_FAILED,
_("The license key is empty"))
# add license key if we have one
self._add_license_key_to_system(pkg_name, license_key, license_key_path)
def _add_license_key_to_system(self, pkg_name, license_key, license_key_path):
# fixup path
license_key_path = os.path.join(apt_pkg.config.find_dir("Dir"),
license_key_path.lstrip("/"))
# Check content of the key
if (license_key.strip().startswith("#!") or
license_key.startswith("\x7fELF")):
raise TransactionFailed(ERROR_LICENSE_KEY_INSTALL_FAILED,
_("The license key is not allowed to "
"contain executable code."))
# Check the path of the license
license_key_path = os.path.normpath(license_key_path)
license_key_path_rootdir = os.path.join(apt_pkg.config["Dir"],
self.LICENSE_KEY_ROOTDIR.lstrip("/"),
pkg_name)
if not license_key_path.startswith(license_key_path_rootdir):
raise TransactionFailed(ERROR_LICENSE_KEY_INSTALL_FAILED,
_("The license key path %s is invalid"),
license_key_path)
if os.path.lexists(license_key_path):
raise TransactionFailed(ERROR_LICENSE_KEY_INSTALL_FAILED,
_("The license key already exists: %s"),
license_key_path)
# Symlink attacks!
if os.path.realpath(license_key_path) != license_key_path:
raise TransactionFailed(ERROR_LICENSE_KEY_INSTALL_FAILED,
_("The location of the license key is "
"unsecure since it contains symbolic "
"links. The path %s maps to %s"),
license_key_path,
os.path.realpath(license_key_path))
# Check if the directory already exists
if not os.path.isdir(os.path.dirname(license_key_path)):
raise TransactionFailed(ERROR_LICENSE_KEY_INSTALL_FAILED,
_("The directory where to install the key "
"to doesn't exist yet: %s"),
license_key_path)
# write it
log.info("Writing license key to '%s'" % license_key_path)
old_umask = os.umask(18)
try:
with open(license_key_path, "w") as license_file:
license_file.write(license_key)
except IOError:
raise TransactionFailed(ERROR_LICENSE_KEY_INSTALL_FAILED,
_("Failed to write key file to: %s"),
license_key_path)
finally:
os.umask(old_umask)
def _iterate_mainloop(self):
"""Process pending actions on the main loop."""
while GObject.main_context_default().pending():
GObject.main_context_default().iteration()
def _iterate_packages(self, interval=1000):
"""Itarte von the packages of the cache and iterate on the
GObject main loop time for more responsiveness.
Keyword arguments:
interval - the number of packages after which we iterate on the
mainloop
"""
for enum, pkg in enumerate(self._cache):
if not enum % interval:
self._iterate_mainloop()
yield pkg
def _get_broken_details(self, trans, now=True):
"""Return a message which provides debugging information about
broken packages.
This method is basically a Python implementation of apt-get.cc's
ShowBroken.
Keyword arguments:
trans -- the corresponding transaction
now -- if we check currently broken dependecies or the installation
candidate
"""
msg = trans.gettext("The following packages have unmet dependencies:")
msg += "\n\n"
for pkg in self._cache:
if not ((now and pkg.is_now_broken) or
(not now and pkg.is_inst_broken)):
continue
msg += "%s: " % pkg.name
if now:
version = pkg.installed
else:
version = pkg.candidate
indent = " " * (len(pkg.name) + 2)
dep_msg = ""
for dep in version.dependencies:
or_msg = ""
for base_dep in dep.or_dependencies:
if or_msg:
or_msg += "or\n"
or_msg += indent
# Check if it's an important dependency
# See apt-pkg/depcache.cc IsImportantDep
# See apt-pkg/pkgcache.cc IsCritical()
# FIXME: Add APT::Install-Recommends-Sections
if not (base_dep.rawtype in ["Depends", "PreDepends",
"Obsoletes", "DpkgBreaks",
"Conflicts"] or
(apt_pkg.config.find_b("APT::Install-Recommends",
False) and
base_dep.rawtype == "Recommends") or
(apt_pkg.config.find_b("APT::Install-Suggests",
False) and
base_dep.rawtype == "Suggests")):
continue
# Get the version of the target package
try:
pkg_dep = self._cache[base_dep.name]
except KeyError:
dep_version = None
else:
if now:
dep_version = pkg_dep.installed
else:
dep_version = pkg_dep.candidate
# We only want to display dependencies which cannot
# be satisfied
if dep_version and not apt_pkg.check_dep(base_dep.version,
base_dep.relation,
version.version):
break
or_msg = "%s: %s " % (base_dep.rawtype, base_dep.name)
if base_dep.version:
or_msg += "(%s %s) " % (base_dep.relation,
base_dep.version)
if self._cache.is_virtual_package(base_dep.name):
or_msg += trans.gettext("but it is a virtual package")
elif not dep_version:
if now:
or_msg += trans.gettext("but it is not installed")
else:
or_msg += trans.gettext("but it is not going to "
"be installed")
elif now:
#TRANSLATORS: %s is a version number
or_msg += trans.gettext("but %s is installed") % \
dep_version.version
else:
#TRANSLATORS: %s is a version number
or_msg += trans.gettext("but %s is to be installed") % \
dep_version.version
else:
# Only append an or-group if at least one of the
# dependencies cannot be satisfied
if dep_msg:
dep_msg += indent
dep_msg += or_msg
dep_msg += "\n"
msg += dep_msg
return msg
def is_reboot_required(self):
"""If a reboot is required to get all changes into effect."""
return os.path.exists(os.path.join(apt_pkg.config.find_dir("Dir"),
"var/run/reboot-required"))
class DummyWorker(AptWorker):
"""Allows to test the daemon without making any changes to the system."""
def run(self, transaction):
"""Process the given transaction in the background.
Keyword argument:
transaction -- core.Transcation instance to run
"""
log.info("Processing transaction %s", transaction.tid)
if self.trans:
raise Exception("There is already a running transaction")
self.trans = transaction
self.last_action_timestamp = time.time()
self.trans.status = STATUS_RUNNING
self.trans.progress = 0
self.trans.cancellable = True
GObject.timeout_add(200, self._process_transaction, transaction)
def _process_transaction(self, trans):
"""Run the worker"""
if trans.cancelled:
trans.exit = EXIT_CANCELLED
elif trans.progress == 100:
trans.exit = EXIT_SUCCESS
elif trans.role == ROLE_UPDATE_CACHE:
trans.exit = EXIT_FAILED
elif trans.role == ROLE_UPGRADE_PACKAGES:
trans.exit = EXIT_SUCCESS
elif trans.role == ROLE_UPGRADE_SYSTEM:
trans.exit = EXIT_CANCELLED
else:
if trans.role == ROLE_INSTALL_PACKAGES:
if trans.progress == 1:
trans.status = STATUS_RESOLVING_DEP
elif trans.progress == 5:
trans.status = STATUS_DOWNLOADING
elif trans.progress == 50:
trans.status = STATUS_COMMITTING
trans.status_details = "Heyas!"
elif trans.progress == 55:
trans.paused = True
trans.status = STATUS_WAITING_CONFIG_FILE_PROMPT
trans.config_file_conflict = "/etc/fstab", "/etc/mtab"
while trans.paused:
GObject.main_context_default().iteration()
trans.config_file_conflict_resolution = None
trans.config_file_conflict = None
trans.status = STATUS_COMMITTING
elif trans.progress == 60:
trans.required_medium = ("Debian Lenny 5.0 CD 1",
"USB CD-ROM")
trans.paused = True
trans.status = STATUS_WAITING_MEDIUM
while trans.paused:
GObject.main_context_default().iteration()
trans.status = STATUS_DOWNLOADING
elif trans.progress == 70:
trans.status_details = "Servus!"
elif trans.progress == 90:
trans.status_deatils = ""
trans.status = STATUS_CLEANING_UP
elif trans.role == ROLE_REMOVE_PACKAGES:
if trans.progress == 1:
trans.status = STATUS_RESOLVING_DEP
elif trans.progress == 5:
trans.status = STATUS_COMMITTING
trans.status_details = "Heyas!"
elif trans.progress == 50:
trans.status_details = "Hola!"
elif trans.progress == 70:
trans.status_details = "Servus!"
elif trans.progress == 90:
trans.status_deatils = ""
trans.status = STATUS_CLEANING_UP
trans.progress += 1
return True
trans.status = STATUS_FINISHED
self.last_action_timestamp = time.time()
tid = self.trans.tid[:]
trans = self.trans
self.trans = None
self._emit_transaction_done(trans)
log.info("Finished transaction %s", tid)
return False
def simulate(self, trans):
depends = [[], [], [], [], [], [], []]
return depends, 0, 0, []
# vim:ts=4:sw=4:et
|