~ubuntu-branches/ubuntu/quantal/dak/quantal

#!/usr/bin/env python

# Checks Debian packages from Incoming
# Copyright (C) 2000, 2001, 2002, 2003, 2004  James Troup <james@nocrew.org>
# $Id: jennifer,v 1.55 2005/01/14 14:07:17 ajt Exp $

# 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
# (at your option) 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

# Originally based on dinstall by Guy Maor <maor@debian.org>

################################################################################

# Computer games don't affect kids. I mean if Pacman affected our generation as
# kids, we'd all run around in a darkened room munching pills and listening to
# repetitive music.
#         -- Unknown

################################################################################

import commands, errno, fcntl, os, re, shutil, stat, sys, time, tempfile, traceback;
import apt_inst, apt_pkg;
import db_access, katie, dak_logging, utils;

from types import *;

################################################################################

re_valid_version = re.compile(r"^([0-9]+:)?[0-9A-Za-z\.\-\+:]+$");
re_valid_pkg_name = re.compile(r"^[\dA-Za-z][\dA-Za-z\+\-\.]+$");
re_changelog_versions = re.compile(r"^\w[-+0-9a-z.]+ \([^\(\) \t]+\)");
re_strip_revision = re.compile(r"-([^-]+)$");

################################################################################

# Globals
jennifer_version = "$Revision: 1.55 $";

Cnf = None;
Options = None;
Logger = None;
Katie = None;

reprocess = 0;
in_holding = {};

# Aliases to the real vars in the Katie class; hysterical raisins.
reject_message = "";
changes = {};
dsc = {};
dsc_files = {};
files = {};
pkg = {};

###############################################################################

def init():
    global Cnf, Options, Katie, changes, dsc, dsc_files, files, pkg;

    apt_pkg.init();

    Cnf = apt_pkg.newConfiguration();
    apt_pkg.ReadConfigFileISC(Cnf,utils.which_conf_file());

    Arguments = [('a',"automatic","Dinstall::Options::Automatic"),
                 ('h',"help","Dinstall::Options::Help"),
                 ('n',"no-action","Dinstall::Options::No-Action"),
                 ('p',"no-lock", "Dinstall::Options::No-Lock"),
                 ('s',"no-mail", "Dinstall::Options::No-Mail"),
                 ('V',"version","Dinstall::Options::Version")];

    for i in ["automatic", "help", "no-action", "no-lock", "no-mail",
              "override-distribution", "version"]:
        Cnf["Dinstall::Options::%s" % (i)] = "";

    changes_files = apt_pkg.ParseCommandLine(Cnf,Arguments,sys.argv);
    Options = Cnf.SubTree("Dinstall::Options")

    if Options["Help"]:
        usage();
    elif Options["Version"]:
        print "jennifer %s" % (jennifer_version);
        sys.exit(0);

    Katie = katie.Katie(Cnf);

    changes = Katie.pkg.changes;
    dsc = Katie.pkg.dsc;
    dsc_files = Katie.pkg.dsc_files;
    files = Katie.pkg.files;
    pkg = Katie.pkg;

    return changes_files;

################################################################################

def usage (exit_code=0):
    print """Usage: dinstall [OPTION]... [CHANGES]...
  -a, --automatic           automatic run
  -h, --help                show this help and exit.
  -n, --no-action           don't do anything
  -p, --no-lock             don't check lockfile !! for cron.daily only !!
  -s, --no-mail             don't send any mail
  -V, --version             display the version number and exit"""
    sys.exit(exit_code)

################################################################################

def reject (str, prefix="Rejected: "):
    global reject_message;
    if str:
        reject_message += prefix + str + "\n";

################################################################################

def copy_to_holding(filename):
    global in_holding;

    base_filename = os.path.basename(filename);

    dest = Cnf["Dir::Queue::Holding"] + '/' + base_filename;
    try:
        fd = os.open(dest, os.O_RDWR|os.O_CREAT|os.O_EXCL, 0640);
        os.close(fd);
    except OSError, e:
        # Shouldn't happen, but will if, for example, someone lists a
        # file twice in the .changes.
        if errno.errorcode[e.errno] == 'EEXIST':
            reject("%s: already exists in holding area; can not overwrite." % (base_filename));
            return;
        raise;

    try:
        shutil.copy(filename, dest);
    except IOError, e:
        # In either case (ENOENT or EACCES) we want to remove the
        # O_CREAT | O_EXCLed ghost file, so add the file to the list
        # of 'in holding' even if it's not the real file.
        if errno.errorcode[e.errno] == 'ENOENT':
            reject("%s: can not copy to holding area: file not found." % (base_filename));
            os.unlink(dest);
            return;
        elif errno.errorcode[e.errno] == 'EACCES':
            reject("%s: can not copy to holding area: read permission denied." % (base_filename));
            os.unlink(dest);
            return;
        raise;

    in_holding[base_filename] = "";

################################################################################

def clean_holding():
    global in_holding;

    cwd = os.getcwd();
    os.chdir(Cnf["Dir::Queue::Holding"]);
    for file in in_holding.keys():
        if os.path.exists(file):
            if file.find('/') != -1:
                utils.fubar("WTF? clean_holding() got a file ('%s') with / in it!" % (file));
            else:
                os.unlink(file);
    in_holding = {};
    os.chdir(cwd);

################################################################################

def check_changes():
    filename = pkg.changes_file;

    # Parse the .changes field into a dictionary
    try:
        changes.update(utils.parse_changes(filename));
    except utils.cant_open_exc:
        reject("%s: can't read file." % (filename));
        return 0;
    except utils.changes_parse_error_exc, line:
        reject("%s: parse error, can't grok: %s." % (filename, line));
        return 0;

    # Parse the Files field from the .changes into another dictionary
    try:
        files.update(utils.build_file_list(changes));
    except utils.changes_parse_error_exc, line:
        reject("%s: parse error, can't grok: %s." % (filename, line));
    except utils.nk_format_exc, format:
        reject("%s: unknown format '%s'." % (filename, format));
        return 0;

    # Check for mandatory fields
    for i in ("source", "binary", "architecture", "version", "distribution",
              "maintainer", "files", "changes"):
        if not changes.has_key(i):
            reject("%s: Missing mandatory field `%s'." % (filename, i));
            return 0    # Avoid <undef> errors during later tests

    # Split multi-value fields into a lower-level dictionary
    for i in ("architecture", "distribution", "binary", "closes"):
        o = changes.get(i, "")
        if o != "":
            del changes[i]
        changes[i] = {}
        for j in o.split():
            changes[i][j] = 1

    # Fix the Maintainer: field to be RFC822/2047 compatible
    try:
        (changes["maintainer822"], changes["maintainer2047"],
         changes["maintainername"], changes["maintaineremail"]) = \
         utils.fix_maintainer (changes["maintainer"]);
    except utils.ParseMaintError, msg:
        reject("%s: Maintainer field ('%s') failed to parse: %s" \
               % (filename, changes["maintainer"], msg));

    # ...likewise for the Changed-By: field if it exists.
    try:
        (changes["changedby822"], changes["changedby2047"],
         changes["changedbyname"], changes["changedbyemail"]) = \
         utils.fix_maintainer (changes.get("changed-by", ""));
    except utils.ParseMaintError, msg:
        reject("%s: Changed-By field ('%s') failed to parse: %s" \
               % (filename, changes["changed-by"], msg));

    # Ensure all the values in Closes: are numbers
    if changes.has_key("closes"):
        for i in changes["closes"].keys():
            if katie.re_isanum.match (i) == None:
                reject("%s: `%s' from Closes field isn't a number." % (filename, i));


    # chopversion = no epoch; chopversion2 = no epoch and no revision (e.g. for .orig.tar.gz comparison)
    changes["chopversion"] = utils.re_no_epoch.sub('', changes["version"])
    changes["chopversion2"] = utils.re_no_revision.sub('', changes["chopversion"])

    # Check there isn't already a changes file of the same name in one
    # of the queue directories.
    base_filename = os.path.basename(filename);
    for dir in [ "Accepted", "Byhand", "Done", "New" ]:
        if os.path.exists(Cnf["Dir::Queue::%s" % (dir) ]+'/'+base_filename):
            reject("%s: a file with this name already exists in the %s directory." % (base_filename, dir));

    # Check the .changes is non-empty
    if not files:
        reject("%s: nothing to do (Files field is empty)." % (base_filename))
        return 0;

    return 1;

################################################################################

def check_distributions():
    "Check and map the Distribution field of a .changes file."

    # Handle suite mappings
    for map in Cnf.ValueList("SuiteMappings"):
        args = map.split();
        type = args[0];
        if type == "map" or type == "silent-map":
            (source, dest) = args[1:3];
            if changes["distribution"].has_key(source):
                del changes["distribution"][source]
                changes["distribution"][dest] = 1;
                if type != "silent-map":
                    reject("Mapping %s to %s." % (source, dest),"");
            if changes.has_key("distribution-version"):
                if changes["distribution-version"].has_key(source):
                    changes["distribution-version"][source]=dest
        elif type == "map-unreleased":
            (source, dest) = args[1:3];
            if changes["distribution"].has_key(source):
                for arch in changes["architecture"].keys():
                    if arch not in Cnf.ValueList("Suite::%s::Architectures" % (source)):
                        reject("Mapping %s to %s for unreleased architecture %s." % (source, dest, arch),"");
                        del changes["distribution"][source];
                        changes["distribution"][dest] = 1;
                        break;
        elif type == "ignore":
            suite = args[1];
            if changes["distribution"].has_key(suite):
                del changes["distribution"][suite];
                reject("Ignoring %s as a target suite." % (suite), "Warning: ");
        elif type == "reject":
            suite = args[1];
            if changes["distribution"].has_key(suite):
                reject("Uploads to %s are not accepted." % (suite));
        elif type == "propup-version":
            # give these as "uploaded-to(non-mapped) suites-to-add-when-upload-obsoletes"
            #
            # changes["distribution-version"] looks like: {'testing': 'testing-proposed-updates'}
            if changes["distribution"].has_key(args[1]):
                changes.setdefault("distribution-version", {})
                for suite in args[2:]: changes["distribution-version"][suite]=suite

    # Ensure there is (still) a target distribution
    if changes["distribution"].keys() == []:
        reject("no valid distribution.");

    # Ensure target distributions exist
    for suite in changes["distribution"].keys():
        if not Cnf.has_key("Suite::%s" % (suite)):
            reject("Unknown distribution `%s'." % (suite));

################################################################################

def check_files():
    global reprocess

    archive = utils.where_am_i();
    file_keys = files.keys();

    # if reprocess is 2 we've already done this and we're checking
    # things again for the new .orig.tar.gz.
    # [Yes, I'm fully aware of how disgusting this is]
    if not Options["No-Action"] and reprocess < 2:
        cwd = os.getcwd();
        os.chdir(pkg.directory);
        for file in file_keys:
            copy_to_holding(file);
        os.chdir(cwd);

    # Check there isn't already a .changes or .katie file of the same name in
    # the proposed-updates "CopyChanges" or "CopyKatie" storage directories.
    # [NB: this check must be done post-suite mapping]
    base_filename = os.path.basename(pkg.changes_file);
    katie_filename = base_filename[:-8]+".katie"
    for suite in changes["distribution"].keys():
        copychanges = "Suite::%s::CopyChanges" % (suite);
        if Cnf.has_key(copychanges) and \
               os.path.exists(Cnf[copychanges]+"/"+base_filename):
            reject("%s: a file with this name already exists in %s" \
                   % (base_filename, Cnf[copychanges]));

        copykatie = "Suite::%s::CopyKatie" % (suite);
        if Cnf.has_key(copykatie) and \
               os.path.exists(Cnf[copykatie]+"/"+katie_filename):
            reject("%s: a file with this name already exists in %s" \
                   % (katie_filename, Cnf[copykatie]));

    reprocess = 0;
    has_binaries = 0;
    has_source = 0;

    for file in file_keys:
        # Ensure the file does not already exist in one of the accepted directories
        for dir in [ "Accepted", "Byhand", "New" ]:
            if os.path.exists(Cnf["Dir::Queue::%s" % (dir) ]+'/'+file):
                reject("%s file already exists in the %s directory." % (file, dir));
        if not utils.re_taint_free.match(file):
            reject("!!WARNING!! tainted filename: '%s'." % (file));
        # Check the file is readable
        if os.access(file,os.R_OK) == 0:
            # When running in -n, copy_to_holding() won't have
            # generated the reject_message, so we need to.
            if Options["No-Action"]:
                if os.path.exists(file):
                    reject("Can't read `%s'. [permission denied]" % (file));
                else:
                    reject("Can't read `%s'. [file not found]" % (file));
            files[file]["type"] = "unreadable";
            continue;
        # If it's byhand skip remaining checks
        if files[file]["section"] == "byhand":
            files[file]["byhand"] = 1;
            files[file]["type"] = "byhand";
        # Checks for a binary package...
        elif utils.re_isadeb.match(file):
            has_binaries = 1;
            files[file]["type"] = "deb";

            # Extract package control information
            deb_file = utils.open_file(file);
            try:
                control = apt_pkg.ParseSection(apt_inst.debExtractControl(deb_file));
            except:
                reject("%s: debExtractControl() raised %s." % (file, sys.exc_type));
                deb_file.close();
                # Can't continue, none of the checks on control would work.
                continue;
            deb_file.close();

            # Check for mandatory fields
            for field in [ "Package", "Architecture", "Version" ]:
                if control.Find(field) == None:
                    reject("%s: No %s field in control." % (file, field));
                    # Can't continue
                    continue;

            # Ensure the package name matches the one give in the .changes
            if not changes["binary"].has_key(control.Find("Package", "")):
                reject("%s: control file lists name as `%s', which isn't in changes file." % (file, control.Find("Package", "")));

            # Validate the package field
            package = control.Find("Package");
            if not re_valid_pkg_name.match(package):
                reject("%s: invalid package name '%s'." % (file, package));

            # Validate the version field
            version = control.Find("Version");
            if not re_valid_version.match(version):
                reject("%s: invalid version number '%s'." % (file, version));

            # Ensure the architecture of the .deb is one we know about.
            default_suite = Cnf.get("Dinstall::DefaultSuite", "Unstable")
            architecture = control.Find("Architecture");
            if architecture not in Cnf.ValueList("Suite::%s::Architectures" % (default_suite)):
                reject("Unknown architecture '%s'." % (architecture));

            # Ensure the architecture of the .deb is one of the ones
            # listed in the .changes.
            if not changes["architecture"].has_key(architecture):
                reject("%s: control file lists arch as `%s', which isn't in changes file." % (file, architecture));

            # Sanity-check the Depends field
            depends = control.Find("Depends");
            if depends == '':
                reject("%s: Depends field is empty." % (file));

            # Check the section & priority match those given in the .changes (non-fatal)
            if control.Find("Section") and files[file]["section"] != "" and files[file]["section"] != control.Find("Section"):
                reject("%s control file lists section as `%s', but changes file has `%s'." % (file, control.Find("Section", ""), files[file]["section"]), "Warning: ");
            if control.Find("Priority") and files[file]["priority"] != "" and files[file]["priority"] != control.Find("Priority"):
                reject("%s control file lists priority as `%s', but changes file has `%s'." % (file, control.Find("Priority", ""), files[file]["priority"]),"Warning: ");

            files[file]["package"] = package;
            files[file]["architecture"] = architecture;
            files[file]["version"] = version;
            files[file]["maintainer"] = control.Find("Maintainer", "");
            if file.endswith(".udeb"):
                files[file]["dbtype"] = "udeb";
            elif file.endswith(".deb"):
                files[file]["dbtype"] = "deb";
            else:
                reject("%s is neither a .deb or a .udeb." % (file));
            files[file]["source"] = control.Find("Source", files[file]["package"]);
            # Get the source version
            source = files[file]["source"];
            source_version = "";
            if source.find("(") != -1:
                m = utils.re_extract_src_version.match(source);
                source = m.group(1);
                source_version = m.group(2);
            if not source_version:
                source_version = files[file]["version"];
            files[file]["source package"] = source;
            files[file]["source version"] = source_version;

            # Ensure the filename matches the contents of the .deb
            m = utils.re_isadeb.match(file);
            #  package name
            file_package = m.group(1);
            if files[file]["package"] != file_package:
                reject("%s: package part of filename (%s) does not match package name in the %s (%s)." % (file, file_package, files[file]["dbtype"], files[file]["package"]));
            epochless_version = utils.re_no_epoch.sub('', control.Find("Version"));
            #  version
            file_version = m.group(2);
            if epochless_version != file_version:
                reject("%s: version part of filename (%s) does not match package version in the %s (%s)." % (file, file_version, files[file]["dbtype"], epochless_version));
            #  architecture
            file_architecture = m.group(3);
            if files[file]["architecture"] != file_architecture:
                reject("%s: architecture part of filename (%s) does not match package architecture in the %s (%s)." % (file, file_architecture, files[file]["dbtype"], files[file]["architecture"]));

            # Check for existent source
            source_version = files[file]["source version"];
            source_package = files[file]["source package"];
            if changes["architecture"].has_key("source"):
                if source_version != changes["version"]:
                    reject("source version (%s) for %s doesn't match changes version %s." % (source_version, file, changes["version"]));
            else:
                # Check in the SQL database
                if not Katie.source_exists(source_package, source_version, changes["distribution"].keys()):
                    # Check in one of the other directories
                    source_epochless_version = utils.re_no_epoch.sub('', source_version);
                    dsc_filename = "%s_%s.dsc" % (source_package, source_epochless_version);
                    if os.path.exists(Cnf["Dir::Queue::Byhand"] + '/' + dsc_filename):
                        files[file]["byhand"] = 1;
                    elif os.path.exists(Cnf["Dir::Queue::New"] + '/' + dsc_filename):
                        files[file]["new"] = 1;
                    elif not os.path.exists(Cnf["Dir::Queue::Accepted"] + '/' + dsc_filename):
                        reject("no source found for %s %s (%s)." % (source_package, source_version, file));
            # Check the version and for file overwrites
            reject(Katie.check_binary_against_db(file),"");

        # Checks for a source package...
        else:
            m = utils.re_issource.match(file);
            if m:
                has_source = 1;
                files[file]["package"] = m.group(1);
                files[file]["version"] = m.group(2);
                files[file]["type"] = m.group(3);

                # Ensure the source package name matches the Source filed in the .changes
                if changes["source"] != files[file]["package"]:
                    reject("%s: changes file doesn't say %s for Source" % (file, files[file]["package"]));

                # Ensure the source version matches the version in the .changes file
                if files[file]["type"] == "orig.tar.gz":
                    changes_version = changes["chopversion2"];
                else:
                    changes_version = changes["chopversion"];
                if changes_version != files[file]["version"]:
                    reject("%s: should be %s according to changes file." % (file, changes_version));

                # Ensure the .changes lists source in the Architecture field
                if not changes["architecture"].has_key("source"):
                    reject("%s: changes file doesn't list `source' in Architecture field." % (file));

                # Check the signature of a .dsc file
                if files[file]["type"] == "dsc":
                    dsc["fingerprint"] = utils.check_signature(file, reject);

                files[file]["architecture"] = "source";

            # Not a binary or source package?  Assume byhand...
            else:
                files[file]["byhand"] = 1;
                files[file]["type"] = "byhand";

        # Per-suite file checks
        files[file]["oldfiles"] = {};
        for suite in changes["distribution"].keys():
            # Skip byhand
            if files[file].has_key("byhand"):
                continue;

            # Handle component mappings
            for map in Cnf.ValueList("ComponentMappings"):
                (source, dest) = map.split();
                if files[file]["component"] == source:
                    files[file]["original component"] = source;
                    files[file]["component"] = dest;

            # Ensure the component is valid for the target suite
            if Cnf.has_key("Suite:%s::Components" % (suite)) and \
               files[file]["component"] not in Cnf.ValueList("Suite::%s::Components" % (suite)):
                reject("unknown component `%s' for suite `%s'." % (files[file]["component"], suite));
                continue;

            # Validate the component
            component = files[file]["component"];
            component_id = db_access.get_component_id(component);
            if component_id == -1:
                reject("file '%s' has unknown component '%s'." % (file, component));
                continue;

            # See if the package is NEW
            if not Katie.in_override_p(files[file]["package"], files[file]["component"], suite, files[file].get("dbtype",""), file):
                files[file]["new"] = 1;

            # Validate the priority
            if files[file]["priority"].find('/') != -1:
                reject("file '%s' has invalid priority '%s' [contains '/']." % (file, files[file]["priority"]));

            # Determine the location
            location = Cnf["Dir::Pool"];
            location_id = db_access.get_location_id (location, component, archive);
            if location_id == -1:
                reject("[INTERNAL ERROR] couldn't determine location (Component: %s, Archive: %s)" % (component, archive));
            files[file]["location id"] = location_id;

            # Check the md5sum & size against existing files (if any)
            files[file]["pool name"] = utils.poolify (changes["source"], files[file]["component"]);
            files_id = db_access.get_files_id(files[file]["pool name"] + file, files[file]["size"], files[file]["md5sum"], files[file]["location id"]);
            if files_id == -1:
                reject("INTERNAL ERROR, get_files_id() returned multiple matches for %s." % (file));
            elif files_id == -2:
                reject("md5sum and/or size mismatch on existing copy of %s." % (file));
            files[file]["files id"] = files_id

            # Check for packages that have moved from one component to another
            q = Katie.projectB.query("""
SELECT c.name FROM binaries b, bin_associations ba, suite s, location l,
                   component c, architecture a, files f
 WHERE b.package = '%s' AND s.suite_name = '%s'
   AND (a.arch_string = '%s' OR a.arch_string = 'all')
   AND ba.bin = b.id AND ba.suite = s.id AND b.architecture = a.id
   AND f.location = l.id AND l.component = c.id AND b.file = f.id"""
                               % (files[file]["package"], suite,
                                  files[file]["architecture"]));
            ql = q.getresult();
            if ql:
                files[file]["othercomponents"] = ql[0][0];

    # If the .changes file says it has source, it must have source.
    if changes["architecture"].has_key("source"):
        if not has_source:
            reject("no source found and Architecture line in changes mention source.");

        if not has_binaries and Cnf.FindB("Dinstall::Reject::NoSourceOnly"):
            reject("source only uploads are not supported.");

###############################################################################

def check_dsc():
    global reprocess;

    # Ensure there is source to check
    if not changes["architecture"].has_key("source"):
        return 1;

    # Find the .dsc
    dsc_filename = None;
    for file in files.keys():
        if files[file]["type"] == "dsc":
            if dsc_filename:
                reject("can not process a .changes file with multiple .dsc's.");
                return 0;
            else:
                dsc_filename = file;

    # If there isn't one, we have nothing to do. (We have reject()ed the upload already)
    if not dsc_filename:
        return 0;

    # Parse the .dsc file
    try:
        dsc.update(utils.parse_changes(dsc_filename, signing_rules=1));
    except utils.cant_open_exc:
        # if not -n copy_to_holding() will have done this for us...
        if Options["No-Action"]:
            reject("%s: can't read file." % (dsc_filename));
    except utils.changes_parse_error_exc, line:
        reject("%s: parse error, can't grok: %s." % (dsc_filename, line));
    except utils.invalid_dsc_format_exc, line:
        reject("%s: syntax error on line %s." % (dsc_filename, line));
    # Build up the file list of files mentioned by the .dsc
    try:
        dsc_files.update(utils.build_file_list(dsc, is_a_dsc=1));
    except utils.no_files_exc:
        reject("%s: no Files: field." % (dsc_filename));
        return 0;
    except utils.changes_parse_error_exc, line:
        reject("%s: parse error, can't grok: %s." % (dsc_filename, line));
        return 0;

    # Enforce mandatory fields
    for i in ("format", "source", "version", "binary", "maintainer", "architecture", "files"):
        if not dsc.has_key(i):
            reject("%s: missing mandatory field `%s'." % (dsc_filename, i));
            return 0;

    # Validate the source and version fields
    if not re_valid_pkg_name.match(dsc["source"]):
        reject("%s: invalid source name '%s'." % (dsc_filename, dsc["source"]));
    if not re_valid_version.match(dsc["version"]):
        reject("%s: invalid version number '%s'." % (dsc_filename, dsc["version"]));

    # Bumping the version number of the .dsc breaks extraction by stable's
    # dpkg-source.  So let's not do that...
    if dsc["format"] != "1.0":
        reject("%s: incompatible 'Format' version produced by a broken version of dpkg-dev 1.9.1{3,4}." % (dsc_filename));

    # Validate the Maintainer field
    try:
        utils.fix_maintainer (dsc["maintainer"]);
    except utils.ParseMaintError, msg:
        reject("%s: Maintainer field ('%s') failed to parse: %s" \
               % (dsc_filename, dsc["maintainer"], msg));

    # Validate the build-depends field(s)
    for field_name in [ "build-depends", "build-depends-indep" ]:
        field = dsc.get(field_name);
        if field:
            # Check for broken dpkg-dev lossage...
            if field.startswith("ARRAY"):
                reject("%s: invalid %s field produced by a broken version of dpkg-dev (1.10.11)" % (dsc_filename, field_name.title()));

            # Have apt try to parse them...
            try:
                apt_pkg.ParseSrcDepends(field);
            except:
                reject("%s: invalid %s field (can not be parsed by apt)." % (dsc_filename, field_name.title()));
                pass;

    # Ensure the version number in the .dsc matches the version number in the .changes
    epochless_dsc_version = utils.re_no_epoch.sub('', dsc["version"]);
    changes_version = files[dsc_filename]["version"];
    if epochless_dsc_version != files[dsc_filename]["version"]:
        reject("version ('%s') in .dsc does not match version ('%s') in .changes." % (epochless_dsc_version, changes_version));

    # Ensure there is a .tar.gz in the .dsc file
    has_tar = 0;
    for f in dsc_files.keys():
        m = utils.re_issource.match(f);
        if not m:
            reject("%s: %s in Files field not recognised as source." % (dsc_filename, f));
        type = m.group(3);
        if type == "orig.tar.gz" or type == "tar.gz":
            has_tar = 1;
    if not has_tar:
        reject("%s: no .tar.gz or .orig.tar.gz in 'Files' field." % (dsc_filename));

    # Ensure source is newer than existing source in target suites
    reject(Katie.check_source_against_db(dsc_filename),"");

    (reject_msg, is_in_incoming) = Katie.check_dsc_against_db(dsc_filename);
    reject(reject_msg, "");
    if is_in_incoming:
        if not Options["No-Action"]:
            copy_to_holding(is_in_incoming);
        orig_tar_gz = os.path.basename(is_in_incoming);
        files[orig_tar_gz] = {};
        files[orig_tar_gz]["size"] = os.stat(orig_tar_gz)[stat.ST_SIZE];
        files[orig_tar_gz]["md5sum"] = dsc_files[orig_tar_gz]["md5sum"];
        files[orig_tar_gz]["section"] = files[dsc_filename]["section"];
        files[orig_tar_gz]["priority"] = files[dsc_filename]["priority"];
        files[orig_tar_gz]["component"] = files[dsc_filename]["component"];
        files[orig_tar_gz]["type"] = "orig.tar.gz";
        reprocess = 2;

    return 1;

################################################################################

def get_changelog_versions(source_dir):
    """Extracts a the source package and (optionally) grabs the
    version history out of debian/changelog for the BTS."""

    # Find the .dsc (again)
    dsc_filename = None;
    for file in files.keys():
        if files[file]["type"] == "dsc":
            dsc_filename = file;

    # If there isn't one, we have nothing to do. (We have reject()ed the upload already)
    if not dsc_filename:
        return;

    # Create a symlink mirror of the source files in our temporary directory
    for f in files.keys():
        m = utils.re_issource.match(f);
        if m:
            src = os.path.join(source_dir, f);
            # If a file is missing for whatever reason, give up.
            if not os.path.exists(src):
                return;
            type = m.group(3);
            if type == "orig.tar.gz" and pkg.orig_tar_gz:
                continue;
            dest = os.path.join(os.getcwd(), f);
            os.symlink(src, dest);

    # If the orig.tar.gz is not a part of the upload, create a symlink to the
    # existing copy.
    if pkg.orig_tar_gz:
        dest = os.path.join(os.getcwd(), os.path.basename(pkg.orig_tar_gz));
        os.symlink(pkg.orig_tar_gz, dest);

    # Extract the source
    cmd = "dpkg-source -sn -x %s" % (dsc_filename);
    (result, output) = commands.getstatusoutput(cmd);
    if (result != 0):
        reject("'dpkg-source -x' failed for %s [return code: %s]." % (dsc_filename, result));
        reject(utils.prefix_multi_line_string(output, " [dpkg-source output:] "), "");
        return;

    if not Cnf.Find("Dir::Queue::BTSVersionTrack"):
        return;

    # Get the upstream version
    upstr_version = utils.re_no_epoch.sub('', dsc["version"]);
    if re_strip_revision.search(upstr_version):
        upstr_version = re_strip_revision.sub('', upstr_version);

    # Ensure the changelog file exists
    changelog_filename = "%s-%s/debian/changelog" % (dsc["source"], upstr_version);
    if not os.path.exists(changelog_filename):
        reject("%s: debian/changelog not found in extracted source." % (dsc_filename));
        return;

    # Parse the changelog
    dsc["bts changelog"] = "";
    changelog_file = utils.open_file(changelog_filename);
    for line in changelog_file.readlines():
        m = re_changelog_versions.match(line);
        if m:
            dsc["bts changelog"] += line;
    changelog_file.close();

    # Check we found at least one revision in the changelog
    if not dsc["bts changelog"]:
        reject("%s: changelog format not recognised (empty version tree)." % (dsc_filename));

########################################

def check_source():
    # Bail out if:
    #    a) there's no source 
    # or b) reprocess is 2 - we will do this check next time when orig.tar.gz is in 'files'
    # or c) the orig.tar.gz is MIA
    if not changes["architecture"].has_key("source") or reprocess == 2 \
       or pkg.orig_tar_gz == -1:
        return;

    # Create a temporary directory to extract the source into
    if Options["No-Action"]:
        tmpdir = tempfile.mktemp();
    else:
        # We're in queue/holding and can create a random directory.
        tmpdir = "%s" % (os.getpid());
    os.mkdir(tmpdir);

    # Move into the temporary directory
    cwd = os.getcwd();
    os.chdir(tmpdir);

    # Get the changelog version history
    get_changelog_versions(cwd);

    # Move back and cleanup the temporary tree
    os.chdir(cwd);
    try:
        shutil.rmtree(tmpdir);
    except OSError, e:
        if errno.errorcode[e.errno] != 'EACCES':
            utils.fubar("%s: couldn't remove tmp dir for source tree." % (dsc["source"]));

        reject("%s: source tree could not be cleanly removed." % (dsc["source"]));
        # We probably have u-r or u-w directories so chmod everything
        # and try again.
        cmd = "chmod -R u+rwx %s" % (tmpdir)
        result = os.system(cmd)
        if result != 0:
            utils.fubar("'%s' failed with result %s." % (cmd, result));
        shutil.rmtree(tmpdir);
    except:
        utils.fubar("%s: couldn't remove tmp dir for source tree." % (dsc["source"]));

################################################################################

# FIXME: should be a debian specific check called from a hook

def check_urgency ():
    if changes["architecture"].has_key("source"):
        if not changes.has_key("urgency"):
            changes["urgency"] = Cnf["Urgency::Default"];
        if changes["urgency"] not in Cnf.ValueList("Urgency::Valid"):
            reject("%s is not a valid urgency; it will be treated as %s by testing." % (changes["urgency"], Cnf["Urgency::Default"]), "Warning: ");
            changes["urgency"] = Cnf["Urgency::Default"];
        changes["urgency"] = changes["urgency"].lower();

################################################################################

def check_md5sums ():
    for file in files.keys():
        try:
            file_handle = utils.open_file(file);
        except utils.cant_open_exc:
            continue;

        # Check md5sum
        if apt_pkg.md5sum(file_handle) != files[file]["md5sum"]:
            reject("%s: md5sum check failed." % (file));
        file_handle.close();
        # Check size
        actual_size = os.stat(file)[stat.ST_SIZE];
        size = int(files[file]["size"]);
        if size != actual_size:
            reject("%s: actual file size (%s) does not match size (%s) in .changes"
                   % (file, actual_size, size));

    for file in dsc_files.keys():
        try:
            file_handle = utils.open_file(file);
        except utils.cant_open_exc:
            continue;

        # Check md5sum
        if apt_pkg.md5sum(file_handle) != dsc_files[file]["md5sum"]:
            reject("%s: md5sum check failed." % (file));
        file_handle.close();
        # Check size
        actual_size = os.stat(file)[stat.ST_SIZE];
        size = int(dsc_files[file]["size"]);
        if size != actual_size:
            reject("%s: actual file size (%s) does not match size (%s) in .dsc"
                   % (file, actual_size, size));

################################################################################

# Sanity check the time stamps of files inside debs.
# [Files in the near future cause ugly warnings and extreme time
#  travel can cause errors on extraction]

def check_timestamps():
    class Tar:
        def __init__(self, future_cutoff, past_cutoff):
            self.reset();
            self.future_cutoff = future_cutoff;
            self.past_cutoff = past_cutoff;

        def reset(self):
            self.future_files = {};
            self.ancient_files = {};

        def callback(self, Kind,Name,Link,Mode,UID,GID,Size,MTime,Major,Minor):
            if MTime > self.future_cutoff:
                self.future_files[Name] = MTime;
            if MTime < self.past_cutoff:
                self.ancient_files[Name] = MTime;
    ####

    future_cutoff = time.time() + int(Cnf["Dinstall::FutureTimeTravelGrace"]);
    past_cutoff = time.mktime(time.strptime(Cnf["Dinstall::PastCutoffYear"],"%Y"));
    tar = Tar(future_cutoff, past_cutoff);
    for filename in files.keys():
        if files[filename]["type"] == "deb":
            tar.reset();
            try:
                deb_file = utils.open_file(filename);
                apt_inst.debExtract(deb_file,tar.callback,"control.tar.gz");
                deb_file.seek(0);
                apt_inst.debExtract(deb_file,tar.callback,"data.tar.gz");
                deb_file.close();
                #
                future_files = tar.future_files.keys();
                if future_files:
                    num_future_files = len(future_files);
                    future_file = future_files[0];
                    future_date = tar.future_files[future_file];
                    reject("%s: has %s file(s) with a time stamp too far into the future (e.g. %s [%s])."
                           % (filename, num_future_files, future_file,
                              time.ctime(future_date)));
                #
                ancient_files = tar.ancient_files.keys();
                if ancient_files:
                    num_ancient_files = len(ancient_files);
                    ancient_file = ancient_files[0];
                    ancient_date = tar.ancient_files[ancient_file];
                    reject("%s: has %s file(s) with a time stamp too ancient (e.g. %s [%s])."
                           % (filename, num_ancient_files, ancient_file,
                              time.ctime(ancient_date)));
            except:
                reject("%s: deb contents timestamp check failed [%s: %s]" % (filename, sys.exc_type, sys.exc_value));

################################################################################
################################################################################

# If any file of an upload has a recent mtime then chances are good
# the file is still being uploaded.

def upload_too_new():
    too_new = 0;
    # Move back to the original directory to get accurate time stamps
    cwd = os.getcwd();
    os.chdir(pkg.directory);
    file_list = pkg.files.keys();
    file_list.extend(pkg.dsc_files.keys());
    file_list.append(pkg.changes_file);
    for file in file_list:
        try:
            last_modified = time.time()-os.path.getmtime(file);
            if last_modified < int(Cnf["Dinstall::SkipTime"]):
                too_new = 1;
                break;
        except:
            pass;
    os.chdir(cwd);
    return too_new;

################################################################################

def action ():
    # changes["distribution"] may not exist in corner cases
    # (e.g. unreadable changes files)
    if not changes.has_key("distribution") or not isinstance(changes["distribution"], DictType):
        changes["distribution"] = {};

    (summary, short_summary) = Katie.build_summaries();

    byhand = new = "";
    for file in files.keys():
        if files[file].has_key("byhand"):
            byhand = 1
        elif files[file].has_key("new"):
            new = 1

    (prompt, answer) = ("", "XXX")
    if Options["No-Action"] or Options["Automatic"]:
        answer = 'S'

    if reject_message.find("Rejected") != -1:
        if upload_too_new():
            print "SKIP (too new)\n" + reject_message,;
            prompt = "[S]kip, Quit ?";
        else:
            print "REJECT\n" + reject_message,;
            prompt = "[R]eject, Skip, Quit ?";
            if Options["Automatic"]:
                answer = 'R';
    elif new:
        print "NEW to %s\n%s%s" % (", ".join(changes["distribution"].keys()), reject_message, summary),;
        prompt = "[N]ew, Skip, Quit ?";
        if Options["Automatic"]:
            answer = 'N';
    elif byhand:
        print "BYHAND\n" + reject_message + summary,;
        prompt = "[B]yhand, Skip, Quit ?";
        if Options["Automatic"]:
            answer = 'B';
    else:
        print "ACCEPT\n" + reject_message + summary,;
        prompt = "[A]ccept, Skip, Quit ?";
        if Options["Automatic"]:
            answer = 'A';

    while prompt.find(answer) == -1:
        answer = utils.our_raw_input(prompt);
        m = katie.re_default_answer.match(prompt);
        if answer == "":
            answer = m.group(1);
        answer = answer[:1].upper();

    if answer == 'R':
        os.chdir (pkg.directory);
        Katie.do_reject(0, reject_message);
    elif answer == 'A':
        accept(summary, short_summary);
    elif answer == 'B':
        do_byhand(summary);
    elif answer == 'N':
        acknowledge_new (summary);
    elif answer == 'Q':
        sys.exit(0)

################################################################################

def accept (summary, short_summary):
    Katie.accept(summary, short_summary);
    Katie.check_override();

    # Finally, remove the originals from the unchecked directory
    os.chdir (pkg.directory);
    for file in files.keys():
        os.unlink(file);
    os.unlink(pkg.changes_file);

################################################################################

def do_byhand (summary):
    print "Moving to BYHAND holding area."
    Logger.log(["Moving to byhand", pkg.changes_file]);

    Katie.dump_vars(Cnf["Dir::Queue::Byhand"]);

    file_keys = files.keys();

    # Move all the files into the byhand directory
    utils.move (pkg.changes_file, Cnf["Dir::Queue::Byhand"]);
    for file in file_keys:
        utils.move (file, Cnf["Dir::Queue::Byhand"], perms=0660);

    # Check for override disparities
    Katie.Subst["__SUMMARY__"] = summary;
    Katie.check_override();

    # Finally remove the originals.
    os.chdir (pkg.directory);
    for file in file_keys:
        os.unlink(file);
    os.unlink(pkg.changes_file);

################################################################################

def acknowledge_new (summary):
    Subst = Katie.Subst;

    print "Moving to NEW holding area."
    Logger.log(["Moving to new", pkg.changes_file]);

    Katie.dump_vars(Cnf["Dir::Queue::New"]);

    file_keys = files.keys();

    # Move all the files into the 'new' directory
    utils.move (pkg.changes_file, Cnf["Dir::Queue::New"]);
    for file in file_keys:
        utils.move (file, Cnf["Dir::Queue::New"], perms=0660);

    if not Options["No-Mail"]:
        print "Sending new ack.";
        Subst["__SUMMARY__"] = summary;
        new_ack_message = utils.TemplateSubst(Subst,Cnf["Dir::Templates"]+"/jennifer.new");
        utils.send_mail(new_ack_message);

    # Finally remove the originals.
    os.chdir (pkg.directory);
    for file in file_keys:
        os.unlink(file);
    os.unlink(pkg.changes_file);

################################################################################

# reprocess is necessary for the case of foo_1.2-1 and foo_1.2-2 in
# Incoming. -1 will reference the .orig.tar.gz, but -2 will not.
# Katie.check_dsc_against_db() can find the .orig.tar.gz but it will
# not have processed it during it's checks of -2.  If -1 has been
# deleted or otherwise not checked by jennifer, the .orig.tar.gz will
# not have been checked at all.  To get round this, we force the
# .orig.tar.gz into the .changes structure and reprocess the .changes
# file.

def process_it (changes_file):
    global reprocess, reject_message;

    # Reset some globals
    reprocess = 1;
    Katie.init_vars();
    # Some defaults in case we can't fully process the .changes file
    changes["maintainer2047"] = Cnf["Dinstall::MyEmailAddress"];
    changes["changedby2047"] = Cnf["Dinstall::MyEmailAddress"];
    reject_message = "";

    # Absolutize the filename to avoid the requirement of being in the
    # same directory as the .changes file.
    pkg.changes_file = os.path.abspath(changes_file);

    # Remember where we are so we can come back after cd-ing into the
    # holding directory.
    pkg.directory = os.getcwd();

    try:
        # If this is the Real Thing(tm), copy things into a private
        # holding directory first to avoid replacable file races.
        if not Options["No-Action"]:
            os.chdir(Cnf["Dir::Queue::Holding"]);
            copy_to_holding(pkg.changes_file);
            # Relativize the filename so we use the copy in holding
            # rather than the original...
            pkg.changes_file = os.path.basename(pkg.changes_file);
        changes["fingerprint"] = utils.check_signature(pkg.changes_file, reject);
        if changes["fingerprint"]:
            valid_changes_p = check_changes();
        else:
            valid_changes_p = 0;
        if valid_changes_p:
            while reprocess:
                check_distributions();
                check_files();
                valid_dsc_p = check_dsc();
                if valid_dsc_p:
                    check_source();
                check_md5sums();
                check_urgency();
                check_timestamps();
        Katie.update_subst(reject_message);
        action();
    except SystemExit:
        raise;
    except:
        print "ERROR";
	traceback.print_exc(file=sys.stderr);
        pass;

    # Restore previous WD
    os.chdir(pkg.directory);

###############################################################################

def main():
    global Cnf, Options, Logger;

    changes_files = init();

    # -n/--dry-run invalidates some other options which would involve things happening
    if Options["No-Action"]:
        Options["Automatic"] = "";

    # Ensure all the arguments we were given are .changes files
    for file in changes_files:
        if not file.endswith(".changes"):
            utils.warn("Ignoring '%s' because it's not a .changes file." % (file));
            changes_files.remove(file);

    if changes_files == []:
        utils.fubar("Need at least one .changes file as an argument.");

    # Check that we aren't going to clash with the daily cron job

    if not Options["No-Action"] and os.path.exists("%s/Archive_Maintenance_In_Progress" % (Cnf["Dir::Root"])) and not Options["No-Lock"]:
        utils.fubar("Archive maintenance in progress.  Try again later.");

    # Obtain lock if not in no-action mode and initialize the log

    if not Options["No-Action"]:
        lock_fd = os.open(Cnf["Dinstall::LockFile"], os.O_RDWR | os.O_CREAT);
        try:
            fcntl.lockf(lock_fd, fcntl.LOCK_EX | fcntl.LOCK_NB);
        except IOError, e:
            if errno.errorcode[e.errno] == 'EACCES' or errno.errorcode[e.errno] == 'EAGAIN':
                utils.fubar("Couldn't obtain lock; assuming another jennifer is already running.");
            else:
                raise;
        Logger = Katie.Logger = dak_logging.Logger(Cnf, "jennifer");

    # debian-{devel-,}-changes@lists.debian.org toggles writes access based on this header
    bcc = "X-Katie: %s" % (jennifer_version);
    if Cnf.has_key("Dinstall::Bcc"):
        Katie.Subst["__BCC__"] = bcc + "\nBcc: %s" % (Cnf["Dinstall::Bcc"]);
    else:
        Katie.Subst["__BCC__"] = bcc;


    # Sort the .changes files so that we process sourceful ones first
    changes_files.sort(utils.changes_compare);

    # Process the changes files
    for changes_file in changes_files:
        print "\n" + changes_file;
        try:
            process_it (changes_file);
        finally:
            if not Options["No-Action"]:
                clean_holding();

    accept_count = Katie.accept_count;
    accept_bytes = Katie.accept_bytes;
    if accept_count:
        sets = "set"
        if accept_count > 1:
            sets = "sets";
        print "Accepted %d package %s, %s." % (accept_count, sets, utils.size_type(int(accept_bytes)));
        Logger.log(["total",accept_count,accept_bytes]);

    if not Options["No-Action"]:
        Logger.close();

################################################################################

if __name__ == '__main__':
    main()