2 # vim:set et ts=4 sw=4:
6 @contact: Debian FTP Master <ftpmaster@debian.org>
7 @copyright: 2000, 2001, 2002, 2003, 2004, 2005, 2006 James Troup <james@nocrew.org>
8 @license: GNU General Public License version 2 or later
11 # This program is free software; you can redistribute it and/or modify
12 # it under the terms of the GNU General Public License as published by
13 # the Free Software Foundation; either version 2 of the License, or
14 # (at your option) any later version.
16 # This program is distributed in the hope that it will be useful,
17 # but WITHOUT ANY WARRANTY; without even the implied warranty of
18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 # GNU General Public License for more details.
21 # You should have received a copy of the GNU General Public License
22 # along with this program; if not, write to the Free Software
23 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
42 import email as modemail
43 from dak_exceptions import *
44 from regexes import re_html_escaping, html_escaping, re_single_line_field, \
45 re_multi_line_field, re_srchasver, re_verwithext, \
46 re_parse_maintainer, re_taint_free, re_gpg_uid, re_re_mark, \
49 ################################################################################
51 default_config = "/etc/dak/dak.conf" #: default dak config, defines host properties
52 default_apt_config = "/etc/dak/apt.conf" #: default apt config, not normally used
54 alias_cache = None #: Cache for email alias checks
55 key_uid_email_cache = {} #: Cache for email addresses from gpg key uids
57 # (hashname, function, earliest_changes_version)
58 known_hashes = [("sha1", apt_pkg.sha1sum, (1, 8)),
59 ("sha256", apt_pkg.sha256sum, (1, 8))] #: hashes we accept for entries in .changes/.dsc
61 ################################################################################
64 """ Escape html chars """
65 return re_html_escaping.sub(lambda x: html_escaping.get(x.group(0)), s)
67 ################################################################################
69 def open_file(filename, mode='r'):
71 Open C{file}, return fileobject.
73 @type filename: string
74 @param filename: path/filename to open
77 @param mode: open mode
80 @return: open fileobject
82 @raise CantOpenError: If IOError is raised by open, reraise it as CantOpenError.
86 f = open(filename, mode)
88 raise CantOpenError, filename
91 ################################################################################
93 def our_raw_input(prompt=""):
95 sys.stdout.write(prompt)
101 sys.stderr.write("\nUser interrupt (^D).\n")
104 ################################################################################
106 def extract_component_from_section(section):
109 if section.find('/') != -1:
110 component = section.split('/')[0]
112 # Expand default component
114 if Cnf.has_key("Component::%s" % section):
119 return (section, component)
121 ################################################################################
123 def parse_deb822(contents, signing_rules=0):
127 # Split the lines in the input, keeping the linebreaks.
128 lines = contents.splitlines(True)
131 raise ParseChangesError, "[Empty changes file]"
133 # Reindex by line number so we can easily verify the format of
139 indexed_lines[index] = line[:-1]
143 num_of_lines = len(indexed_lines.keys())
146 while index < num_of_lines:
148 line = indexed_lines[index]
150 if signing_rules == 1:
152 if index > num_of_lines:
153 raise InvalidDscError, index
154 line = indexed_lines[index]
155 if not line.startswith("-----BEGIN PGP SIGNATURE"):
156 raise InvalidDscError, index
161 if line.startswith("-----BEGIN PGP SIGNATURE"):
163 if line.startswith("-----BEGIN PGP SIGNED MESSAGE"):
165 if signing_rules == 1:
166 while index < num_of_lines and line != "":
168 line = indexed_lines[index]
170 # If we're not inside the signed data, don't process anything
171 if signing_rules >= 0 and not inside_signature:
173 slf = re_single_line_field.match(line)
175 field = slf.groups()[0].lower()
176 changes[field] = slf.groups()[1]
180 changes[field] += '\n'
182 mlf = re_multi_line_field.match(line)
185 raise ParseChangesError, "'%s'\n [Multi-line field continuing on from nothing?]" % (line)
186 if first == 1 and changes[field] != "":
187 changes[field] += '\n'
189 changes[field] += mlf.groups()[0] + '\n'
193 if signing_rules == 1 and inside_signature:
194 raise InvalidDscError, index
196 changes["filecontents"] = "".join(lines)
198 if changes.has_key("source"):
199 # Strip the source version in brackets from the source field,
200 # put it in the "source-version" field instead.
201 srcver = re_srchasver.search(changes["source"])
203 changes["source"] = srcver.group(1)
204 changes["source-version"] = srcver.group(2)
207 raise ParseChangesError, error
211 ################################################################################
213 def parse_changes(filename, signing_rules=0):
215 Parses a changes file and returns a dictionary where each field is a
216 key. The mandatory first argument is the filename of the .changes
219 signing_rules is an optional argument:
221 - If signing_rules == -1, no signature is required.
222 - If signing_rules == 0 (the default), a signature is required.
223 - If signing_rules == 1, it turns on the same strict format checking
226 The rules for (signing_rules == 1)-mode are:
228 - The PGP header consists of "-----BEGIN PGP SIGNED MESSAGE-----"
229 followed by any PGP header data and must end with a blank line.
231 - The data section must end with a blank line and must be followed by
232 "-----BEGIN PGP SIGNATURE-----".
235 changes_in = open_file(filename)
236 content = changes_in.read()
239 unicode(content, 'utf-8')
241 raise ChangesUnicodeError, "Changes file not proper utf-8"
242 return parse_deb822(content, signing_rules)
244 ################################################################################
246 def hash_key(hashname):
247 return '%ssum' % hashname
249 ################################################################################
251 def create_hash(where, files, hashname, hashfunc):
253 create_hash extends the passed files dict with the given hash by
254 iterating over all files on disk and passing them to the hashing
259 for f in files.keys():
261 file_handle = open_file(f)
262 except CantOpenError:
263 rejmsg.append("Could not open file %s for checksumming" % (f))
266 files[f][hash_key(hashname)] = hashfunc(file_handle)
271 ################################################################################
273 def check_hash(where, files, hashname, hashfunc):
275 check_hash checks the given hash in the files dict against the actual
276 files on disk. The hash values need to be present consistently in
277 all file entries. It does not modify its input in any way.
281 for f in files.keys():
285 file_handle = open_file(f)
287 # Check for the hash entry, to not trigger a KeyError.
288 if not files[f].has_key(hash_key(hashname)):
289 rejmsg.append("%s: misses %s checksum in %s" % (f, hashname,
293 # Actually check the hash for correctness.
294 if hashfunc(file_handle) != files[f][hash_key(hashname)]:
295 rejmsg.append("%s: %s check failed in %s" % (f, hashname,
297 except CantOpenError:
298 # TODO: This happens when the file is in the pool.
299 # warn("Cannot open file %s" % f)
306 ################################################################################
308 def check_size(where, files):
310 check_size checks the file sizes in the passed files dict against the
315 for f in files.keys():
320 # TODO: This happens when the file is in the pool.
324 actual_size = entry[stat.ST_SIZE]
325 size = int(files[f]["size"])
326 if size != actual_size:
327 rejmsg.append("%s: actual file size (%s) does not match size (%s) in %s"
328 % (f, actual_size, size, where))
331 ################################################################################
333 def check_hash_fields(what, manifest):
335 check_hash_fields ensures that there are no checksum fields in the
336 given dict that we do not know about.
340 hashes = map(lambda x: x[0], known_hashes)
341 for field in manifest:
342 if field.startswith("checksums-"):
343 hashname = field.split("-",1)[1]
344 if hashname not in hashes:
345 rejmsg.append("Unsupported checksum field for %s "\
346 "in %s" % (hashname, what))
349 ################################################################################
351 def _ensure_changes_hash(changes, format, version, files, hashname, hashfunc):
352 if format >= version:
353 # The version should contain the specified hash.
356 # Import hashes from the changes
357 rejmsg = parse_checksums(".changes", files, changes, hashname)
361 # We need to calculate the hash because it can't possibly
364 return func(".changes", files, hashname, hashfunc)
366 # We could add the orig which might be in the pool to the files dict to
367 # access the checksums easily.
369 def _ensure_dsc_hash(dsc, dsc_files, hashname, hashfunc):
371 ensure_dsc_hashes' task is to ensure that each and every *present* hash
372 in the dsc is correct, i.e. identical to the changes file and if necessary
373 the pool. The latter task is delegated to check_hash.
377 if not dsc.has_key('Checksums-%s' % (hashname,)):
379 # Import hashes from the dsc
380 parse_checksums(".dsc", dsc_files, dsc, hashname)
382 rejmsg.extend(check_hash(".dsc", dsc_files, hashname, hashfunc))
385 ################################################################################
387 def ensure_hashes(changes, dsc, files, dsc_files):
390 # Make sure we recognise the format of the Files: field in the .changes
391 format = changes.get("format", "0.0").split(".", 1)
393 format = int(format[0]), int(format[1])
395 format = int(float(format[0])), 0
397 # We need to deal with the original changes blob, as the fields we need
398 # might not be in the changes dict serialised into the .dak anymore.
399 orig_changes = parse_deb822(changes['filecontents'])
401 # Copy the checksums over to the current changes dict. This will keep
402 # the existing modifications to it intact.
403 for field in orig_changes:
404 if field.startswith('checksums-'):
405 changes[field] = orig_changes[field]
407 # Check for unsupported hashes
408 rejmsg.extend(check_hash_fields(".changes", changes))
409 rejmsg.extend(check_hash_fields(".dsc", dsc))
411 # We have to calculate the hash if we have an earlier changes version than
412 # the hash appears in rather than require it exist in the changes file
413 for hashname, hashfunc, version in known_hashes:
414 rejmsg.extend(_ensure_changes_hash(changes, format, version, files,
416 if "source" in changes["architecture"]:
417 rejmsg.extend(_ensure_dsc_hash(dsc, dsc_files, hashname,
422 def parse_checksums(where, files, manifest, hashname):
424 field = 'checksums-%s' % hashname
425 if not field in manifest:
427 for line in manifest[field].split('\n'):
430 checksum, size, checkfile = line.strip().split(' ')
431 if not files.has_key(checkfile):
432 # TODO: check for the file's entry in the original files dict, not
433 # the one modified by (auto)byhand and other weird stuff
434 # rejmsg.append("%s: not present in files but in checksums-%s in %s" %
435 # (file, hashname, where))
437 if not files[checkfile]["size"] == size:
438 rejmsg.append("%s: size differs for files and checksums-%s entry "\
439 "in %s" % (checkfile, hashname, where))
441 files[checkfile][hash_key(hashname)] = checksum
442 for f in files.keys():
443 if not files[f].has_key(hash_key(hashname)):
444 rejmsg.append("%s: no entry in checksums-%s in %s" % (checkfile,
448 ################################################################################
450 # Dropped support for 1.4 and ``buggy dchanges 3.4'' (?!) compared to di.pl
452 def build_file_list(changes, is_a_dsc=0, field="files", hashname="md5sum"):
455 # Make sure we have a Files: field to parse...
456 if not changes.has_key(field):
457 raise NoFilesFieldError
459 # Make sure we recognise the format of the Files: field
460 format = re_verwithext.search(changes.get("format", "0.0"))
462 raise UnknownFormatError, "%s" % (changes.get("format","0.0"))
464 format = format.groups()
465 if format[1] == None:
466 format = int(float(format[0])), 0, format[2]
468 format = int(format[0]), int(format[1]), format[2]
469 if format[2] == None:
473 # format = (1,0) are the only formats we currently accept,
474 # format = (0,0) are missing format headers of which we still
475 # have some in the archive.
476 if format != (1,0) and format != (0,0):
477 raise UnknownFormatError, "%s" % (changes.get("format","0.0"))
479 if (format < (1,5) or format > (1,8)):
480 raise UnknownFormatError, "%s" % (changes.get("format","0.0"))
481 if field != "files" and format < (1,8):
482 raise UnknownFormatError, "%s" % (changes.get("format","0.0"))
484 includes_section = (not is_a_dsc) and field == "files"
486 # Parse each entry/line:
487 for i in changes[field].split('\n'):
491 section = priority = ""
494 (md5, size, section, priority, name) = s
496 (md5, size, name) = s
498 raise ParseChangesError, i
505 (section, component) = extract_component_from_section(section)
507 files[name] = Dict(size=size, section=section,
508 priority=priority, component=component)
509 files[name][hashname] = md5
513 ################################################################################
515 def force_to_utf8(s):
517 Forces a string to UTF-8. If the string isn't already UTF-8,
518 it's assumed to be ISO-8859-1.
524 latin1_s = unicode(s,'iso8859-1')
525 return latin1_s.encode('utf-8')
527 def rfc2047_encode(s):
529 Encodes a (header) string per RFC2047 if necessary. If the
530 string is neither ASCII nor UTF-8, it's assumed to be ISO-8859-1.
533 codecs.lookup('ascii')[1](s)
538 codecs.lookup('utf-8')[1](s)
539 h = email.Header.Header(s, 'utf-8', 998)
542 h = email.Header.Header(s, 'iso-8859-1', 998)
545 ################################################################################
547 # <Culus> 'The standard sucks, but my tool is supposed to interoperate
548 # with it. I know - I'll fix the suckage and make things
551 def fix_maintainer (maintainer):
553 Parses a Maintainer or Changed-By field and returns:
554 1. an RFC822 compatible version,
555 2. an RFC2047 compatible version,
559 The name is forced to UTF-8 for both 1. and 3.. If the name field
560 contains '.' or ',' (as allowed by Debian policy), 1. and 2. are
561 switched to 'email (name)' format.
564 maintainer = maintainer.strip()
566 return ('', '', '', '')
568 if maintainer.find("<") == -1:
571 elif (maintainer[0] == "<" and maintainer[-1:] == ">"):
572 email = maintainer[1:-1]
575 m = re_parse_maintainer.match(maintainer)
577 raise ParseMaintError, "Doesn't parse as a valid Maintainer field."
581 # Get an RFC2047 compliant version of the name
582 rfc2047_name = rfc2047_encode(name)
584 # Force the name to be UTF-8
585 name = force_to_utf8(name)
587 if name.find(',') != -1 or name.find('.') != -1:
588 rfc822_maint = "%s (%s)" % (email, name)
589 rfc2047_maint = "%s (%s)" % (email, rfc2047_name)
591 rfc822_maint = "%s <%s>" % (name, email)
592 rfc2047_maint = "%s <%s>" % (rfc2047_name, email)
594 if email.find("@") == -1 and email.find("buildd_") != 0:
595 raise ParseMaintError, "No @ found in email address part."
597 return (rfc822_maint, rfc2047_maint, name, email)
599 ################################################################################
601 def send_mail (message, filename=""):
602 """sendmail wrapper, takes _either_ a message string or a file as arguments"""
604 # If we've been passed a string dump it into a temporary file
606 (fd, filename) = tempfile.mkstemp()
607 os.write (fd, message)
610 if Cnf.has_key("Dinstall::MailWhiteList") and \
611 Cnf["Dinstall::MailWhiteList"] != "":
612 message_in = open_file(filename)
613 message_raw = modemail.message_from_file(message_in)
617 whitelist_in = open_file(Cnf["Dinstall::MailWhiteList"])
619 for line in whitelist_in:
620 if not re_whitespace_comment.match(line):
621 if re_re_mark.match(line):
622 whitelist.append(re.compile(re_re_mark.sub("", line.strip(), 1)))
624 whitelist.append(re.compile(re.escape(line.strip())))
629 fields = ["To", "Bcc", "Cc"]
632 value = message_raw.get(field, None)
635 for item in value.split(","):
636 (rfc822_maint, rfc2047_maint, name, email) = fix_maintainer(item.strip())
642 if not mail_whitelisted:
643 print "Skipping %s since it's not in %s" % (item, Cnf["Dinstall::MailWhiteList"])
647 # Doesn't have any mail in whitelist so remove the header
649 del message_raw[field]
651 message_raw.replace_header(field, string.join(match, ", "))
653 # Change message fields in order if we don't have a To header
654 if not message_raw.has_key("To"):
657 if message_raw.has_key(field):
658 message_raw[fields[-1]] = message_raw[field]
659 del message_raw[field]
662 # Clean up any temporary files
663 # and return, as we removed all recipients.
665 os.unlink (filename);
668 fd = os.open(filename, os.O_RDWR|os.O_EXCL, 0700);
669 os.write (fd, message_raw.as_string(True));
673 (result, output) = commands.getstatusoutput("%s < %s" % (Cnf["Dinstall::SendmailCommand"], filename))
675 raise SendmailFailedError, output
677 # Clean up any temporary files
681 ################################################################################
683 def poolify (source, component):
686 if source[:3] == "lib":
687 return component + source[:4] + '/' + source + '/'
689 return component + source[:1] + '/' + source + '/'
691 ################################################################################
693 def move (src, dest, overwrite = 0, perms = 0664):
694 if os.path.exists(dest) and os.path.isdir(dest):
697 dest_dir = os.path.dirname(dest)
698 if not os.path.exists(dest_dir):
699 umask = os.umask(00000)
700 os.makedirs(dest_dir, 02775)
702 #print "Moving %s to %s..." % (src, dest)
703 if os.path.exists(dest) and os.path.isdir(dest):
704 dest += '/' + os.path.basename(src)
705 # Don't overwrite unless forced to
706 if os.path.exists(dest):
708 fubar("Can't move %s to %s - file already exists." % (src, dest))
710 if not os.access(dest, os.W_OK):
711 fubar("Can't move %s to %s - can't write to existing file." % (src, dest))
712 shutil.copy2(src, dest)
713 os.chmod(dest, perms)
716 def copy (src, dest, overwrite = 0, perms = 0664):
717 if os.path.exists(dest) and os.path.isdir(dest):
720 dest_dir = os.path.dirname(dest)
721 if not os.path.exists(dest_dir):
722 umask = os.umask(00000)
723 os.makedirs(dest_dir, 02775)
725 #print "Copying %s to %s..." % (src, dest)
726 if os.path.exists(dest) and os.path.isdir(dest):
727 dest += '/' + os.path.basename(src)
728 # Don't overwrite unless forced to
729 if os.path.exists(dest):
731 raise FileExistsError
733 if not os.access(dest, os.W_OK):
734 raise CantOverwriteError
735 shutil.copy2(src, dest)
736 os.chmod(dest, perms)
738 ################################################################################
741 res = socket.gethostbyaddr(socket.gethostname())
742 database_hostname = Cnf.get("Config::" + res[0] + "::DatabaseHostname")
743 if database_hostname:
744 return database_hostname
748 def which_conf_file ():
749 res = socket.gethostbyaddr(socket.gethostname())
750 # In case we allow local config files per user, try if one exists
751 if Cnf.FindB("Config::" + res[0] + "::AllowLocalConfig"):
752 homedir = os.getenv("HOME")
753 confpath = os.path.join(homedir, "/etc/dak.conf")
754 if os.path.exists(confpath):
755 apt_pkg.ReadConfigFileISC(Cnf,default_config)
757 # We are still in here, so there is no local config file or we do
758 # not allow local files. Do the normal stuff.
759 if Cnf.get("Config::" + res[0] + "::DakConfig"):
760 return Cnf["Config::" + res[0] + "::DakConfig"]
762 return default_config
764 def which_apt_conf_file ():
765 res = socket.gethostbyaddr(socket.gethostname())
766 # In case we allow local config files per user, try if one exists
767 if Cnf.FindB("Config::" + res[0] + "::AllowLocalConfig"):
768 homedir = os.getenv("HOME")
769 confpath = os.path.join(homedir, "/etc/dak.conf")
770 if os.path.exists(confpath):
771 apt_pkg.ReadConfigFileISC(Cnf,default_config)
773 if Cnf.get("Config::" + res[0] + "::AptConfig"):
774 return Cnf["Config::" + res[0] + "::AptConfig"]
776 return default_apt_config
778 def which_alias_file():
779 hostname = socket.gethostbyaddr(socket.gethostname())[0]
780 aliasfn = '/var/lib/misc/'+hostname+'/forward-alias'
781 if os.path.exists(aliasfn):
786 ################################################################################
788 # Escape characters which have meaning to SQL's regex comparison operator ('~')
789 # (woefully incomplete)
792 s = s.replace('+', '\\\\+')
793 s = s.replace('.', '\\\\.')
796 ################################################################################
798 def TemplateSubst(map, filename):
799 """ Perform a substition of template """
800 templatefile = open_file(filename)
801 template = templatefile.read()
803 template = template.replace(x,map[x])
807 ################################################################################
809 def fubar(msg, exit_code=1):
810 sys.stderr.write("E: %s\n" % (msg))
814 sys.stderr.write("W: %s\n" % (msg))
816 ################################################################################
818 # Returns the user name with a laughable attempt at rfc822 conformancy
819 # (read: removing stray periods).
821 return pwd.getpwuid(os.getuid())[4].split(',')[0].replace('.', '')
823 ################################################################################
833 return ("%d%s" % (c, t))
835 ################################################################################
837 def cc_fix_changes (changes):
838 o = changes.get("architecture", "")
840 del changes["architecture"]
841 changes["architecture"] = {}
843 changes["architecture"][j] = 1
845 def changes_compare (a, b):
846 """ Sort by source name, source version, 'have source', and then by filename """
848 a_changes = parse_changes(a)
853 b_changes = parse_changes(b)
857 cc_fix_changes (a_changes)
858 cc_fix_changes (b_changes)
860 # Sort by source name
861 a_source = a_changes.get("source")
862 b_source = b_changes.get("source")
863 q = cmp (a_source, b_source)
867 # Sort by source version
868 a_version = a_changes.get("version", "0")
869 b_version = b_changes.get("version", "0")
870 q = apt_pkg.VersionCompare(a_version, b_version)
874 # Sort by 'have source'
875 a_has_source = a_changes["architecture"].get("source")
876 b_has_source = b_changes["architecture"].get("source")
877 if a_has_source and not b_has_source:
879 elif b_has_source and not a_has_source:
882 # Fall back to sort by filename
885 ################################################################################
887 def find_next_free (dest, too_many=100):
890 while os.path.exists(dest) and extra < too_many:
891 dest = orig_dest + '.' + repr(extra)
893 if extra >= too_many:
894 raise NoFreeFilenameError
897 ################################################################################
899 def result_join (original, sep = '\t'):
901 for i in xrange(len(original)):
902 if original[i] == None:
903 resultlist.append("")
905 resultlist.append(original[i])
906 return sep.join(resultlist)
908 ################################################################################
910 def prefix_multi_line_string(str, prefix, include_blank_lines=0):
912 for line in str.split('\n'):
914 if line or include_blank_lines:
915 out += "%s%s\n" % (prefix, line)
916 # Strip trailing new line
921 ################################################################################
923 def validate_changes_file_arg(filename, require_changes=1):
925 'filename' is either a .changes or .dak file. If 'filename' is a
926 .dak file, it's changed to be the corresponding .changes file. The
927 function then checks if the .changes file a) exists and b) is
928 readable and returns the .changes filename if so. If there's a
929 problem, the next action depends on the option 'require_changes'
932 - If 'require_changes' == -1, errors are ignored and the .changes
933 filename is returned.
934 - If 'require_changes' == 0, a warning is given and 'None' is returned.
935 - If 'require_changes' == 1, a fatal error is raised.
940 orig_filename = filename
941 if filename.endswith(".dak"):
942 filename = filename[:-4]+".changes"
944 if not filename.endswith(".changes"):
945 error = "invalid file type; not a changes file"
947 if not os.access(filename,os.R_OK):
948 if os.path.exists(filename):
949 error = "permission denied"
951 error = "file not found"
954 if require_changes == 1:
955 fubar("%s: %s." % (orig_filename, error))
956 elif require_changes == 0:
957 warn("Skipping %s - %s" % (orig_filename, error))
959 else: # We only care about the .dak file
964 ################################################################################
967 return (arch != "source" and arch != "all")
969 ################################################################################
971 def join_with_commas_and(list):
972 if len(list) == 0: return "nothing"
973 if len(list) == 1: return list[0]
974 return ", ".join(list[:-1]) + " and " + list[-1]
976 ################################################################################
981 (pkg, version, constraint) = atom
983 pp_dep = "%s (%s %s)" % (pkg, constraint, version)
986 pp_deps.append(pp_dep)
987 return " |".join(pp_deps)
989 ################################################################################
994 ################################################################################
996 def parse_args(Options):
997 """ Handle -a, -c and -s arguments; returns them as SQL constraints """
1001 for suite in split_args(Options["Suite"]):
1002 suite_id = database.get_suite_id(suite)
1004 warn("suite '%s' not recognised." % (suite))
1006 suite_ids_list.append(suite_id)
1008 con_suites = "AND su.id IN (%s)" % ", ".join([ str(i) for i in suite_ids_list ])
1010 fubar("No valid suite given.")
1015 if Options["Component"]:
1016 component_ids_list = []
1017 for component in split_args(Options["Component"]):
1018 component_id = database.get_component_id(component)
1019 if component_id == -1:
1020 warn("component '%s' not recognised." % (component))
1022 component_ids_list.append(component_id)
1023 if component_ids_list:
1024 con_components = "AND c.id IN (%s)" % ", ".join([ str(i) for i in component_ids_list ])
1026 fubar("No valid component given.")
1030 # Process architecture
1031 con_architectures = ""
1032 if Options["Architecture"]:
1035 for architecture in split_args(Options["Architecture"]):
1036 if architecture == "source":
1039 architecture_id = database.get_architecture_id(architecture)
1040 if architecture_id == -1:
1041 warn("architecture '%s' not recognised." % (architecture))
1043 arch_ids_list.append(architecture_id)
1045 con_architectures = "AND a.id IN (%s)" % ", ".join([ str(i) for i in arch_ids_list ])
1047 if not check_source:
1048 fubar("No valid architecture given.")
1052 return (con_suites, con_architectures, con_components, check_source)
1054 ################################################################################
1056 # Inspired(tm) by Bryn Keller's print_exc_plus (See
1057 # http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/52215)
1060 tb = sys.exc_info()[2]
1067 frame = frame.f_back
1069 traceback.print_exc()
1071 print "\nFrame %s in %s at line %s" % (frame.f_code.co_name,
1072 frame.f_code.co_filename,
1074 for key, value in frame.f_locals.items():
1075 print "\t%20s = " % key,
1079 print "<unable to print>"
1081 ################################################################################
1083 def try_with_debug(function):
1091 ################################################################################
1093 def arch_compare_sw (a, b):
1095 Function for use in sorting lists of architectures.
1097 Sorts normally except that 'source' dominates all others.
1100 if a == "source" and b == "source":
1109 ################################################################################
1111 def split_args (s, dwim=1):
1113 Split command line arguments which can be separated by either commas
1114 or whitespace. If dwim is set, it will complain about string ending
1115 in comma since this usually means someone did 'dak ls -a i386, m68k
1116 foo' or something and the inevitable confusion resulting from 'm68k'
1117 being treated as an argument is undesirable.
1120 if s.find(",") == -1:
1123 if s[-1:] == "," and dwim:
1124 fubar("split_args: found trailing comma, spurious space maybe?")
1127 ################################################################################
1129 def Dict(**dict): return dict
1131 ########################################
1133 def gpgv_get_status_output(cmd, status_read, status_write):
1135 Our very own version of commands.getouputstatus(), hacked to support
1139 cmd = ['/bin/sh', '-c', cmd]
1140 p2cread, p2cwrite = os.pipe()
1141 c2pread, c2pwrite = os.pipe()
1142 errout, errin = os.pipe()
1152 for i in range(3, 256):
1153 if i != status_write:
1159 os.execvp(cmd[0], cmd)
1165 os.dup2(c2pread, c2pwrite)
1166 os.dup2(errout, errin)
1168 output = status = ""
1170 i, o, e = select.select([c2pwrite, errin, status_read], [], [])
1173 r = os.read(fd, 8196)
1175 more_data.append(fd)
1176 if fd == c2pwrite or fd == errin:
1178 elif fd == status_read:
1181 fubar("Unexpected file descriptor [%s] returned from select\n" % (fd))
1183 pid, exit_status = os.waitpid(pid, 0)
1185 os.close(status_write)
1186 os.close(status_read)
1196 return output, status, exit_status
1198 ################################################################################
1200 def process_gpgv_output(status):
1201 # Process the status-fd output
1204 for line in status.split('\n'):
1208 split = line.split()
1210 internal_error += "gpgv status line is malformed (< 2 atoms) ['%s'].\n" % (line)
1212 (gnupg, keyword) = split[:2]
1213 if gnupg != "[GNUPG:]":
1214 internal_error += "gpgv status line is malformed (incorrect prefix '%s').\n" % (gnupg)
1217 if keywords.has_key(keyword) and keyword not in [ "NODATA", "SIGEXPIRED", "KEYEXPIRED" ]:
1218 internal_error += "found duplicate status token ('%s').\n" % (keyword)
1221 keywords[keyword] = args
1223 return (keywords, internal_error)
1225 ################################################################################
1227 def retrieve_key (filename, keyserver=None, keyring=None):
1229 Retrieve the key that signed 'filename' from 'keyserver' and
1230 add it to 'keyring'. Returns nothing on success, or an error message
1234 # Defaults for keyserver and keyring
1236 keyserver = Cnf["Dinstall::KeyServer"]
1238 keyring = Cnf.ValueList("Dinstall::GPGKeyring")[0]
1240 # Ensure the filename contains no shell meta-characters or other badness
1241 if not re_taint_free.match(filename):
1242 return "%s: tainted filename" % (filename)
1244 # Invoke gpgv on the file
1245 status_read, status_write = os.pipe()
1246 cmd = "gpgv --status-fd %s --keyring /dev/null %s" % (status_write, filename)
1247 (_, status, _) = gpgv_get_status_output(cmd, status_read, status_write)
1249 # Process the status-fd output
1250 (keywords, internal_error) = process_gpgv_output(status)
1252 return internal_error
1254 if not keywords.has_key("NO_PUBKEY"):
1255 return "didn't find expected NO_PUBKEY in gpgv status-fd output"
1257 fingerprint = keywords["NO_PUBKEY"][0]
1258 # XXX - gpg sucks. You can't use --secret-keyring=/dev/null as
1259 # it'll try to create a lockfile in /dev. A better solution might
1260 # be a tempfile or something.
1261 cmd = "gpg --no-default-keyring --secret-keyring=%s --no-options" \
1262 % (Cnf["Dinstall::SigningKeyring"])
1263 cmd += " --keyring %s --keyserver %s --recv-key %s" \
1264 % (keyring, keyserver, fingerprint)
1265 (result, output) = commands.getstatusoutput(cmd)
1267 return "'%s' failed with exit code %s" % (cmd, result)
1271 ################################################################################
1273 def gpg_keyring_args(keyrings=None):
1275 keyrings = Cnf.ValueList("Dinstall::GPGKeyring")
1277 return " ".join(["--keyring %s" % x for x in keyrings])
1279 ################################################################################
1281 def check_signature (sig_filename, reject, data_filename="", keyrings=None, autofetch=None):
1283 Check the signature of a file and return the fingerprint if the
1284 signature is valid or 'None' if it's not. The first argument is the
1285 filename whose signature should be checked. The second argument is a
1286 reject function and is called when an error is found. The reject()
1287 function must allow for two arguments: the first is the error message,
1288 the second is an optional prefix string. It's possible for reject()
1289 to be called more than once during an invocation of check_signature().
1290 The third argument is optional and is the name of the files the
1291 detached signature applies to. The fourth argument is optional and is
1292 a *list* of keyrings to use. 'autofetch' can either be None, True or
1293 False. If None, the default behaviour specified in the config will be
1297 # Ensure the filename contains no shell meta-characters or other badness
1298 if not re_taint_free.match(sig_filename):
1299 reject("!!WARNING!! tainted signature filename: '%s'." % (sig_filename))
1302 if data_filename and not re_taint_free.match(data_filename):
1303 reject("!!WARNING!! tainted data filename: '%s'." % (data_filename))
1307 keyrings = Cnf.ValueList("Dinstall::GPGKeyring")
1309 # Autofetch the signing key if that's enabled
1310 if autofetch == None:
1311 autofetch = Cnf.get("Dinstall::KeyAutoFetch")
1313 error_msg = retrieve_key(sig_filename)
1318 # Build the command line
1319 status_read, status_write = os.pipe()
1320 cmd = "gpgv --status-fd %s %s %s %s" % (
1321 status_write, gpg_keyring_args(keyrings), sig_filename, data_filename)
1323 # Invoke gpgv on the file
1324 (output, status, exit_status) = gpgv_get_status_output(cmd, status_read, status_write)
1326 # Process the status-fd output
1327 (keywords, internal_error) = process_gpgv_output(status)
1329 # If we failed to parse the status-fd output, let's just whine and bail now
1331 reject("internal error while performing signature check on %s." % (sig_filename))
1332 reject(internal_error, "")
1333 reject("Please report the above errors to the Archive maintainers by replying to this mail.", "")
1337 # Now check for obviously bad things in the processed output
1338 if keywords.has_key("KEYREVOKED"):
1339 reject("The key used to sign %s has been revoked." % (sig_filename))
1341 if keywords.has_key("BADSIG"):
1342 reject("bad signature on %s." % (sig_filename))
1344 if keywords.has_key("ERRSIG") and not keywords.has_key("NO_PUBKEY"):
1345 reject("failed to check signature on %s." % (sig_filename))
1347 if keywords.has_key("NO_PUBKEY"):
1348 args = keywords["NO_PUBKEY"]
1351 reject("The key (0x%s) used to sign %s wasn't found in the keyring(s)." % (key, sig_filename))
1353 if keywords.has_key("BADARMOR"):
1354 reject("ASCII armour of signature was corrupt in %s." % (sig_filename))
1356 if keywords.has_key("NODATA"):
1357 reject("no signature found in %s." % (sig_filename))
1359 if keywords.has_key("EXPKEYSIG"):
1360 args = keywords["EXPKEYSIG"]
1363 reject("Signature made by expired key 0x%s" % (key))
1365 if keywords.has_key("KEYEXPIRED") and not keywords.has_key("GOODSIG"):
1366 args = keywords["KEYEXPIRED"]
1370 if timestamp.count("T") == 0:
1372 expiredate = time.strftime("%Y-%m-%d", time.gmtime(float(timestamp)))
1374 expiredate = "unknown (%s)" % (timestamp)
1376 expiredate = timestamp
1377 reject("The key used to sign %s has expired on %s" % (sig_filename, expiredate))
1383 # Next check gpgv exited with a zero return code
1385 reject("gpgv failed while checking %s." % (sig_filename))
1387 reject(prefix_multi_line_string(status, " [GPG status-fd output:] "), "")
1389 reject(prefix_multi_line_string(output, " [GPG output:] "), "")
1392 # Sanity check the good stuff we expect
1393 if not keywords.has_key("VALIDSIG"):
1394 reject("signature on %s does not appear to be valid [No VALIDSIG]." % (sig_filename))
1397 args = keywords["VALIDSIG"]
1399 reject("internal error while checking signature on %s." % (sig_filename))
1402 fingerprint = args[0]
1403 if not keywords.has_key("GOODSIG"):
1404 reject("signature on %s does not appear to be valid [No GOODSIG]." % (sig_filename))
1406 if not keywords.has_key("SIG_ID"):
1407 reject("signature on %s does not appear to be valid [No SIG_ID]." % (sig_filename))
1410 # Finally ensure there's not something we don't recognise
1411 known_keywords = Dict(VALIDSIG="",SIG_ID="",GOODSIG="",BADSIG="",ERRSIG="",
1412 SIGEXPIRED="",KEYREVOKED="",NO_PUBKEY="",BADARMOR="",
1413 NODATA="",NOTATION_DATA="",NOTATION_NAME="",KEYEXPIRED="")
1415 for keyword in keywords.keys():
1416 if not known_keywords.has_key(keyword):
1417 reject("found unknown status token '%s' from gpgv with args '%r' in %s." % (keyword, keywords[keyword], sig_filename))
1425 ################################################################################
1427 def gpg_get_key_addresses(fingerprint):
1428 """retreive email addresses from gpg key uids for a given fingerprint"""
1429 addresses = key_uid_email_cache.get(fingerprint)
1430 if addresses != None:
1433 cmd = "gpg --no-default-keyring %s --fingerprint %s" \
1434 % (gpg_keyring_args(), fingerprint)
1435 (result, output) = commands.getstatusoutput(cmd)
1437 for l in output.split('\n'):
1438 m = re_gpg_uid.match(l)
1440 addresses.add(m.group(1))
1441 key_uid_email_cache[fingerprint] = addresses
1444 ################################################################################
1446 # Inspired(tm) by http://www.zopelabs.com/cookbook/1022242603
1448 def wrap(paragraph, max_length, prefix=""):
1452 words = paragraph.split()
1455 word_size = len(word)
1456 if word_size > max_length:
1458 s += line + '\n' + prefix
1459 s += word + '\n' + prefix
1462 new_length = len(line) + word_size + 1
1463 if new_length > max_length:
1464 s += line + '\n' + prefix
1477 ################################################################################
1479 def clean_symlink (src, dest, root):
1481 Relativize an absolute symlink from 'src' -> 'dest' relative to 'root'.
1484 src = src.replace(root, '', 1)
1485 dest = dest.replace(root, '', 1)
1486 dest = os.path.dirname(dest)
1487 new_src = '../' * len(dest.split('/'))
1488 return new_src + src
1490 ################################################################################
1492 def temp_filename(directory=None, prefix="dak", suffix=""):
1494 Return a secure and unique filename by pre-creating it.
1495 If 'directory' is non-null, it will be the directory the file is pre-created in.
1496 If 'prefix' is non-null, the filename will be prefixed with it, default is dak.
1497 If 'suffix' is non-null, the filename will end with it.
1499 Returns a pair (fd, name).
1502 return tempfile.mkstemp(suffix, prefix, directory)
1504 ################################################################################
1506 def temp_dirname(parent=None, prefix="dak", suffix=""):
1508 Return a secure and unique directory by pre-creating it.
1509 If 'parent' is non-null, it will be the directory the directory is pre-created in.
1510 If 'prefix' is non-null, the filename will be prefixed with it, default is dak.
1511 If 'suffix' is non-null, the filename will end with it.
1513 Returns a pathname to the new directory
1516 return tempfile.mkdtemp(suffix, prefix, parent)
1518 ################################################################################
1520 def is_email_alias(email):
1521 """ checks if the user part of the email is listed in the alias file """
1523 if alias_cache == None:
1524 aliasfn = which_alias_file()
1527 for l in open(aliasfn):
1528 alias_cache.add(l.split(':')[0])
1529 uid = email.split('@')[0]
1530 return uid in alias_cache
1532 ################################################################################
1534 def get_changes_files(dir):
1536 Takes a directory and lists all .changes files in it (as well as chdir'ing
1537 to the directory; this is due to broken behaviour on the part of p-u/p-a
1538 when you're not in the right place)
1540 Returns a list of filenames
1543 # Much of the rest of p-u/p-a depends on being in the right place
1545 changes_files = [x for x in os.listdir(dir) if x.endswith('.changes')]
1547 fubar("Failed to read list from directory %s (%s)" % (dir, e))
1549 return changes_files
1551 ################################################################################
1555 Cnf = apt_pkg.newConfiguration()
1556 apt_pkg.ReadConfigFileISC(Cnf,default_config)
1558 if which_conf_file() != default_config:
1559 apt_pkg.ReadConfigFileISC(Cnf,which_conf_file())
1561 ###############################################################################