dak/process_policy.py

   1 #!/usr/bin/env python
   2 # vim:set et ts=4 sw=4:
   3
   4 """ Handles packages from policy queues
   5
   6 @contact: Debian FTP Master <ftpmaster@debian.org>
   7 @copyright: 2001, 2002, 2003, 2004, 2005, 2006  James Troup <james@nocrew.org>
   8 @copyright: 2009 Joerg Jaspert <joerg@debian.org>
   9 @copyright: 2009 Frank Lichtenheld <djpig@debian.org>
  10 @copyright: 2009 Mark Hymers <mhy@debian.org>
  11 @license: GNU General Public License version 2 or later
  12 """
  13 # This program is free software; you can redistribute it and/or modify
  14 # it under the terms of the GNU General Public License as published by
  15 # the Free Software Foundation; either version 2 of the License, or
  16 # (at your option) any later version.
  17
  18 # This program is distributed in the hope that it will be useful,
  19 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  20 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21 # GNU General Public License for more details.
  22
  23 # You should have received a copy of the GNU General Public License
  24 # along with this program; if not, write to the Free Software
  25 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  26
  27 ################################################################################
  28
  29 # <mhy> So how do we handle that at the moment?
  30 # <stew> Probably incorrectly.
  31
  32 ################################################################################
  33
  34 import os
  35 import datetime
  36 import re
  37 import sys
  38 import traceback
  39 import apt_pkg
  40
  41 from daklib.dbconn import *
  42 from daklib import daklog
  43 from daklib import utils
  44 from daklib.dak_exceptions import CantOpenError, AlreadyLockedError, CantGetLockError
  45 from daklib.config import Config
  46 from daklib.archive import ArchiveTransaction, source_component_from_package_list
  47 from daklib.urgencylog import UrgencyLog
  48 from daklib.packagelist import PackageList
  49
  50 import daklib.announce
  51
  52 # Globals
  53 Options = None
  54 Logger = None
  55
  56 ################################################################################
  57
  58 def do_comments(dir, srcqueue, opref, npref, line, fn, transaction):
  59     session = transaction.session
  60     actions = []
  61     for comm in [ x for x in os.listdir(dir) if x.startswith(opref) ]:
  62         lines = open(os.path.join(dir, comm)).readlines()
  63         if len(lines) == 0 or lines[0] != line + "\n": continue
  64
  65         # If the ACCEPT includes a _<arch> we only accept that .changes.
  66         # Otherwise we accept all .changes that start with the given prefix
  67         changes_prefix = comm[len(opref):]
  68         if changes_prefix.count('_') < 2:
  69             changes_prefix = changes_prefix + '_'
  70         else:
  71             changes_prefix = changes_prefix + '.changes'
  72
  73         # We need to escape "_" as we use it with the LIKE operator (via the
  74         # SQLA startwith) later.
  75         changes_prefix = changes_prefix.replace("_", r"\_")
  76
  77         uploads = session.query(PolicyQueueUpload).filter_by(policy_queue=srcqueue) \
  78             .join(PolicyQueueUpload.changes).filter(DBChange.changesname.startswith(changes_prefix)) \
  79             .order_by(PolicyQueueUpload.source_id)
  80         reason = "".join(lines[1:])
  81         actions.extend((u, reason) for u in uploads)
  82
  83         if opref != npref:
  84             newcomm = npref + comm[len(opref):]
  85             newcomm = utils.find_next_free(os.path.join(dir, newcomm))
  86             transaction.fs.move(os.path.join(dir, comm), newcomm)
  87
  88     actions.sort()
  89
  90     for u, reason in actions:
  91         print("Processing changes file: {0}".format(u.changes.changesname))
  92         fn(u, srcqueue, reason, transaction)
  93
  94 ################################################################################
  95
  96 def try_or_reject(function):
  97     def wrapper(upload, srcqueue, comments, transaction):
  98         try:
  99             function(upload, srcqueue, comments, transaction)
 100         except Exception as e:
 101             comments = 'An exception was raised while processing the package:\n{0}\nOriginal comments:\n{1}'.format(traceback.format_exc(), comments)
 102             try:
 103                 transaction.rollback()
 104                 real_comment_reject(upload, srcqueue, comments, transaction)
 105             except Exception as e:
 106                 comments = 'In addition an exception was raised while trying to reject the upload:\n{0}\nOriginal rejection:\n{1}'.format(traceback.format_exc(), comments)
 107                 transaction.rollback()
 108                 real_comment_reject(upload, srcqueue, comments, transaction, notify=False)
 109         if not Options['No-Action']:
 110             transaction.commit()
 111         else:
 112             transaction.rollback()
 113     return wrapper
 114
 115 ################################################################################
 116
 117 @try_or_reject
 118 def comment_accept(upload, srcqueue, comments, transaction):
 119     for byhand in upload.byhand:
 120         path = os.path.join(srcqueue.path, byhand.filename)
 121         if os.path.exists(path):
 122             raise Exception('E: cannot ACCEPT upload with unprocessed byhand file {0}'.format(byhand.filename))
 123
 124     cnf = Config()
 125
 126     fs = transaction.fs
 127     session = transaction.session
 128     changesname = upload.changes.changesname
 129     allow_tainted = srcqueue.suite.archive.tainted
 130
 131     # We need overrides to get the target component
 132     overridesuite = upload.target_suite
 133     if overridesuite.overridesuite is not None:
 134         overridesuite = session.query(Suite).filter_by(suite_name=overridesuite.overridesuite).one()
 135
 136     def binary_component_func(db_binary):
 137         section = db_binary.proxy['Section']
 138         component_name = 'main'
 139         if section.find('/') != -1:
 140             component_name = section.split('/', 1)[0]
 141         return get_mapped_component(component_name, session=session)
 142
 143     def source_component_func(db_source):
 144         package_list = PackageList(db_source.proxy)
 145         component = source_component_from_package_list(package_list, upload.target_suite)
 146         if component is not None:
 147             return get_mapped_component(component, session=session)
 148
 149         # Fallback for packages without Package-List field
 150         query = session.query(Override).filter_by(suite=overridesuite, package=db_source.source) \
 151             .join(OverrideType).filter(OverrideType.overridetype == 'dsc') \
 152             .join(Component)
 153         return query.one().component
 154
 155     all_target_suites = [upload.target_suite]
 156     all_target_suites.extend([q.suite for q in upload.target_suite.copy_queues])
 157
 158     for suite in all_target_suites:
 159         if upload.source is not None:
 160             transaction.copy_source(upload.source, suite, source_component_func(upload.source), allow_tainted=allow_tainted)
 161         for db_binary in upload.binaries:
 162             # build queues may miss the source package if this is a binary-only upload
 163             if suite != upload.target_suite:
 164                 transaction.copy_source(db_binary.source, suite, source_component_func(db_binary.source), allow_tainted=allow_tainted)
 165             transaction.copy_binary(db_binary, suite, binary_component_func(db_binary), allow_tainted=allow_tainted, extra_archives=[upload.target_suite.archive])
 166
 167     # Copy .changes if needed
 168     if upload.target_suite.copychanges:
 169         src = os.path.join(upload.policy_queue.path, upload.changes.changesname)
 170         dst = os.path.join(upload.target_suite.path, upload.changes.changesname)
 171         fs.copy(src, dst, mode=upload.target_suite.archive.mode)
 172
 173     # Copy upload to Process-Policy::CopyDir
 174     # Used on security.d.o to sync accepted packages to ftp-master, but this
 175     # should eventually be replaced by something else.
 176     copydir = cnf.get('Process-Policy::CopyDir') or None
 177     if copydir is not None:
 178         mode = upload.target_suite.archive.mode
 179         if upload.source is not None:
 180             for f in [ df.poolfile for df in upload.source.srcfiles ]:
 181                 dst = os.path.join(copydir, f.basename)
 182                 if not os.path.exists(dst):
 183                     fs.copy(f.fullpath, dst, mode=mode)
 184
 185         for db_binary in upload.binaries:
 186             f = db_binary.poolfile
 187             dst = os.path.join(copydir, f.basename)
 188             if not os.path.exists(dst):
 189                 fs.copy(f.fullpath, dst, mode=mode)
 190
 191         src = os.path.join(upload.policy_queue.path, upload.changes.changesname)
 192         dst = os.path.join(copydir, upload.changes.changesname)
 193         if not os.path.exists(dst):
 194             fs.copy(src, dst, mode=mode)
 195
 196     if upload.source is not None and not Options['No-Action']:
 197         urgency = upload.changes.urgency
 198         if urgency not in cnf.value_list('Urgency::Valid'):
 199             urgency = cnf['Urgency::Default']
 200         UrgencyLog().log(upload.source.source, upload.source.version, urgency)
 201
 202     print "  ACCEPT"
 203     if not Options['No-Action']:
 204         Logger.log(["Policy Queue ACCEPT", srcqueue.queue_name, changesname])
 205
 206     pu = get_processed_upload(upload)
 207     daklib.announce.announce_accept(pu)
 208
 209     # TODO: code duplication. Similar code is in process-upload.
 210     # Move .changes to done
 211     src = os.path.join(upload.policy_queue.path, upload.changes.changesname)
 212     now = datetime.datetime.now()
 213     donedir = os.path.join(cnf['Dir::Done'], now.strftime('%Y/%m/%d'))
 214     dst = os.path.join(donedir, upload.changes.changesname)
 215     dst = utils.find_next_free(dst)
 216     fs.copy(src, dst, mode=0o644)
 217
 218     remove_upload(upload, transaction)
 219
 220 ################################################################################
 221
 222 @try_or_reject
 223 def comment_reject(*args):
 224     real_comment_reject(*args, manual=True)
 225
 226 def real_comment_reject(upload, srcqueue, comments, transaction, notify=True, manual=False):
 227     cnf = Config()
 228
 229     fs = transaction.fs
 230     session = transaction.session
 231     changesname = upload.changes.changesname
 232     queuedir = upload.policy_queue.path
 233     rejectdir = cnf['Dir::Reject']
 234
 235     ### Copy files to reject/
 236
 237     poolfiles = [b.poolfile for b in upload.binaries]
 238     if upload.source is not None:
 239         poolfiles.extend([df.poolfile for df in upload.source.srcfiles])
 240     # Not beautiful...
 241     files = [ af.path for af in session.query(ArchiveFile) \
 242                   .filter_by(archive=upload.policy_queue.suite.archive) \
 243                   .join(ArchiveFile.file) \
 244                   .filter(PoolFile.file_id.in_([ f.file_id for f in poolfiles ])) ]
 245     for byhand in upload.byhand:
 246         path = os.path.join(queuedir, byhand.filename)
 247         if os.path.exists(path):
 248             files.append(path)
 249     files.append(os.path.join(queuedir, changesname))
 250
 251     for fn in files:
 252         dst = utils.find_next_free(os.path.join(rejectdir, os.path.basename(fn)))
 253         fs.copy(fn, dst, link=True)
 254
 255     ### Write reason
 256
 257     dst = utils.find_next_free(os.path.join(rejectdir, '{0}.reason'.format(changesname)))
 258     fh = fs.create(dst)
 259     fh.write(comments)
 260     fh.close()
 261
 262     ### Send mail notification
 263
 264     if notify:
 265         rejected_by = None
 266         reason = comments
 267
 268         # Try to use From: from comment file if there is one.
 269         # This is not very elegant...
 270         match = re.match(r"\AFrom: ([^\n]+)\n\n", comments)
 271         if match:
 272             rejected_by = match.group(1)
 273             reason = '\n'.join(comments.splitlines()[2:])
 274
 275         pu = get_processed_upload(upload)
 276         daklib.announce.announce_reject(pu, reason, rejected_by)
 277
 278     print "  REJECT"
 279     if not Options["No-Action"]:
 280         Logger.log(["Policy Queue REJECT", srcqueue.queue_name, upload.changes.changesname])
 281
 282     changes = upload.changes
 283     remove_upload(upload, transaction)
 284     session.delete(changes)
 285
 286 ################################################################################
 287
 288 def remove_upload(upload, transaction):
 289     fs = transaction.fs
 290     session = transaction.session
 291     changes = upload.changes
 292
 293     # Remove byhand and changes files. Binary and source packages will be
 294     # removed from {bin,src}_associations and eventually removed by clean-suites automatically.
 295     queuedir = upload.policy_queue.path
 296     for byhand in upload.byhand:
 297         path = os.path.join(queuedir, byhand.filename)
 298         if os.path.exists(path):
 299             fs.unlink(path)
 300         session.delete(byhand)
 301     fs.unlink(os.path.join(queuedir, upload.changes.changesname))
 302
 303     session.delete(upload)
 304     session.flush()
 305
 306 ################################################################################
 307
 308 def get_processed_upload(upload):
 309     pu = daklib.announce.ProcessedUpload()
 310
 311     pu.maintainer = upload.changes.maintainer
 312     pu.changed_by = upload.changes.changedby
 313     pu.fingerprint = upload.changes.fingerprint
 314
 315     pu.suites = [ upload.target_suite ]
 316     pu.from_policy_suites = [ upload.target_suite ]
 317
 318     changes_path = os.path.join(upload.policy_queue.path, upload.changes.changesname)
 319     pu.changes = open(changes_path, 'r').read()
 320     pu.changes_filename = upload.changes.changesname
 321     pu.sourceful = upload.source is not None
 322     pu.source = upload.changes.source
 323     pu.version = upload.changes.version
 324     pu.architecture = upload.changes.architecture
 325     pu.bugs = upload.changes.closes
 326
 327     pu.program = "process-policy"
 328
 329     return pu
 330
 331 ################################################################################
 332
 333 def remove_unreferenced_binaries(policy_queue, transaction):
 334     """Remove binaries that are no longer referenced by an upload
 335
 336     @type  policy_queue: L{daklib.dbconn.PolicyQueue}
 337
 338     @type  transaction: L{daklib.archive.ArchiveTransaction}
 339     """
 340     session = transaction.session
 341     suite = policy_queue.suite
 342
 343     query = """
 344        SELECT b.*
 345          FROM binaries b
 346          JOIN bin_associations ba ON b.id = ba.bin
 347         WHERE ba.suite = :suite_id
 348           AND NOT EXISTS (SELECT 1 FROM policy_queue_upload_binaries_map pqubm
 349                                    JOIN policy_queue_upload pqu ON pqubm.policy_queue_upload_id = pqu.id
 350                                   WHERE pqu.policy_queue_id = :policy_queue_id
 351                                     AND pqubm.binary_id = b.id)"""
 352     binaries = session.query(DBBinary).from_statement(query) \
 353         .params({'suite_id': policy_queue.suite_id, 'policy_queue_id': policy_queue.policy_queue_id})
 354
 355     for binary in binaries:
 356         Logger.log(["removed binary from policy queue", policy_queue.queue_name, binary.package, binary.version])
 357         transaction.remove_binary(binary, suite)
 358
 359 def remove_unreferenced_sources(policy_queue, transaction):
 360     """Remove sources that are no longer referenced by an upload or a binary
 361
 362     @type  policy_queue: L{daklib.dbconn.PolicyQueue}
 363
 364     @type  transaction: L{daklib.archive.ArchiveTransaction}
 365     """
 366     session = transaction.session
 367     suite = policy_queue.suite
 368
 369     query = """
 370        SELECT s.*
 371          FROM source s
 372          JOIN src_associations sa ON s.id = sa.source
 373         WHERE sa.suite = :suite_id
 374           AND NOT EXISTS (SELECT 1 FROM policy_queue_upload pqu
 375                                   WHERE pqu.policy_queue_id = :policy_queue_id
 376                                     AND pqu.source_id = s.id)
 377           AND NOT EXISTS (SELECT 1 FROM binaries b
 378                                    JOIN bin_associations ba ON b.id = ba.bin
 379                                   WHERE b.source = s.id
 380                                     AND ba.suite = :suite_id)"""
 381     sources = session.query(DBSource).from_statement(query) \
 382         .params({'suite_id': policy_queue.suite_id, 'policy_queue_id': policy_queue.policy_queue_id})
 383
 384     for source in sources:
 385         Logger.log(["removed source from policy queue", policy_queue.queue_name, source.source, source.version])
 386         transaction.remove_source(source, suite)
 387
 388 ################################################################################
 389
 390 def main():
 391     global Options, Logger
 392
 393     cnf = Config()
 394     session = DBConn().session()
 395
 396     Arguments = [('h',"help","Process-Policy::Options::Help"),
 397                  ('n',"no-action","Process-Policy::Options::No-Action")]
 398
 399     for i in ["help", "no-action"]:
 400         if not cnf.has_key("Process-Policy::Options::%s" % (i)):
 401             cnf["Process-Policy::Options::%s" % (i)] = ""
 402
 403     queue_name = apt_pkg.parse_commandline(cnf.Cnf,Arguments,sys.argv)
 404
 405     if len(queue_name) != 1:
 406         print "E: Specify exactly one policy queue"
 407         sys.exit(1)
 408
 409     queue_name = queue_name[0]
 410
 411     Options = cnf.subtree("Process-Policy::Options")
 412
 413     if Options["Help"]:
 414         usage()
 415
 416     Logger = daklog.Logger("process-policy")
 417     if not Options["No-Action"]:
 418         urgencylog = UrgencyLog()
 419
 420     with ArchiveTransaction() as transaction:
 421         session = transaction.session
 422         try:
 423             pq = session.query(PolicyQueue).filter_by(queue_name=queue_name).one()
 424         except NoResultFound:
 425             print "E: Cannot find policy queue %s" % queue_name
 426             sys.exit(1)
 427
 428         commentsdir = os.path.join(pq.path, 'COMMENTS')
 429         # The comments stuff relies on being in the right directory
 430         os.chdir(pq.path)
 431
 432         do_comments(commentsdir, pq, "REJECT.", "REJECTED.", "NOTOK", comment_reject, transaction)
 433         do_comments(commentsdir, pq, "ACCEPT.", "ACCEPTED.", "OK", comment_accept, transaction)
 434         do_comments(commentsdir, pq, "ACCEPTED.", "ACCEPTED.", "OK", comment_accept, transaction)
 435
 436         remove_unreferenced_binaries(pq, transaction)
 437         remove_unreferenced_sources(pq, transaction)
 438
 439     if not Options['No-Action']:
 440         urgencylog.close()
 441
 442 ################################################################################
 443
 444 if __name__ == '__main__':
 445     main()