#!/usr/bin/env python

# Wrapper for Debian Security team
# Copyright (C) 2002  James Troup <james@nocrew.org>
# $Id: amber,v 1.1 2002-05-14 15:24:45 troup 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

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

# <aj> neuro: <usual question>?
# <neuro> aj: PPG: the movie!  july 3!
# <aj> _PHWOAR_!!!!!
# <aj> (you think you can distract me, and you're right)
# <aj> urls?!
# <aj> promo videos?!
# <aj> where, where!?

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

import commands, pwd, os, string, sys, time;
import apt_pkg;
import katie, utils;

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

Cnf = None;
Katie = None;

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

def usage (exit_code=0):
    print """Usage: amber ADV_NUMBER CHANGES_FILE[...]
Install CHANGES_FILE(s) as security advisory ADV_NUMBER

  -h, --help                 show this help and exit

"""
    sys.exit(exit_code)

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

def get_file_list(arguments):
    file_list = "";
    for arg in arguments:
        arg = utils.validate_changes_file_arg(arg);
        Katie.pkg.changes_file = arg;
	Katie.init_vars();
        Katie.update_vars();
        files = Katie.pkg.files;
        changes = Katie.pkg.changes;
        for file in files.keys():
            poolname = os.path.join(Cnf["Dir::Root"], Cnf["Dir::PoolRoot"],
                                    utils.poolify(changes["source"], files[file]["component"]),
                                    file);
            file_list = "%s %s" % (file_list, poolname);
    file_list = "%s %s" % (file_list, string.join(map(os.path.abspath, arguments)));
    return file_list;

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

def join_with_commas_and(list):
	if len(list) == 0: return "nothing";
	if len(list) == 1: return list[0];
	return string.join(list[:-1], ", ") + " and " + list[-1];

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

# Originally written by aj, nih-ishly merged into amber by me.

def make_advisory(advisory_nr, changes_files):
    adv_packages = [];
    updated_pkgs = {};  # updated_pkgs[distro][arch][file] = {path,md5,size}

    for arg in changes_files:
        arg = utils.validate_changes_file_arg(arg);
	Katie.pkg.changes_file = arg;
	Katie.init_vars();
	Katie.update_vars();

	src = Katie.pkg.changes["source"];
	if src not in adv_packages:
	    adv_packages = adv_packages + [src];

	suites = Katie.pkg.changes["distribution"].keys();
	for suite in suites:
	    if not updated_pkgs.has_key(suite):
                updated_pkgs[suite] = {};

	files = Katie.pkg.files;
	for file in files.keys():
	    arch = files[file]["architecture"];
	    md5 = files[file]["md5sum"];
	    size = files[file]["size"];
	    poolname = Cnf["Dir::PoolRoot"] + \
	    	utils.poolify(src, files[file]["component"]);
	    if arch == "source" and file[-4:] == ".dsc":
	        dscpoolname = poolname;
	    for suite in suites:
	        if not updated_pkgs[suite].has_key(arch):
		    updated_pkgs[suite][arch] = {}
		updated_pkgs[suite][arch][file] = {
                    "md5": md5, "size": size,
                    "poolname": poolname };

	dsc_files = Katie.pkg.dsc_files;
	for file in dsc_files.keys():
	    arch = "source"
	    if not dsc_files[file].has_key("files id"):
                continue;

	    # otherwise, it's already in the pool and needs to be
	    # listed specially
	    md5 = dsc_files[file]["md5sum"];
	    size = dsc_files[file]["size"];
	    for suite in suites:
	        if not updated_pkgs[suite].has_key(arch):
		    updated_pkgs[suite][arch] = {};
		updated_pkgs[suite][arch][file] = {
                    "md5": md5, "size": size,
                    "poolname": dscpoolname };

    if os.environ.has_key("SUDO_UID"):
        whoami = string.atol(os.environ["SUDO_UID"]);
    else:
        whoami = os.getuid();
    whoamifull = pwd.getpwuid(whoami);
    username = string.split(whoamifull[4], ",")[0];

    Subst = {
    	"__ADVISORY__": advisory_nr,
	"__WHOAMI__": username,
	"__DATE__": time.strftime("%B %d, %Y", time.gmtime(time.time())),
	"__PACKAGE__": string.join(adv_packages,", ")
    };

    adv = "";
    archive = Cnf["Archive::%s::PrimaryMirror" % (utils.where_am_i())];
    for suite in updated_pkgs.keys():
        suite_header = "%s %s (%s)" % (Cnf["Dinstall::MyDistribution"],
                                       Cnf["Suite::%s::Version" % suite], suite);
        adv = adv + "%s\n%s\n\n" % (suite_header, "-"*len(suite_header));

	arches = Cnf.ValueList("Suite::%s::Architectures" % suite);
	if "source" in arches:
            arches.remove("source");
	if "all" in arches:
            arches.remove("all");
	arches.sort();

	adv = adv + "  %s was released for %s.\n\n" % (
		string.capitalize(suite), join_with_commas_and(arches));

	for a in ["source", "all"] + arches:
	    if not updated_pkgs[suite].has_key(a):
                continue;

	    if a == "source":
	    	adv = adv + "  Source archives:\n\n";
	    elif a == "all":
	        adv = adv + "  Architecture independent packages:\n\n";
	    else:
	        adv = adv + "  %s architecture (%s)\n\n" % (a,
			Cnf["Architectures::%s" % a]);

	    for file in updated_pkgs[suite][a].keys():
		adv = adv + "    http://%s/%s%s\n" % (
				archive, updated_pkgs[suite][a][file]["poolname"], file);
		adv = adv + "      Size/MD5 checksum: %8s %s\n" % (
			updated_pkgs[suite][a][file]["size"],
			updated_pkgs[suite][a][file]["md5"]);
	    adv = adv + "\n";
    adv = string.rstrip(adv);

    Subst["__ADVISORY_TEXT__"] = adv;

    adv = utils.TemplateSubst(Subst, Cnf["Dir::Templates"]+"/amber.advisory");
    utils.send_mail (adv, "");

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

def init():
    global Cnf, Katie;

    apt_pkg.init();
    Cnf = utils.get_conf();

    Arguments = [('h',"help","Amber::Options::Help")];

    for i in [ "help" ]:
        Cnf["Amber::Options::%s" % (i)] = "";

    arguments = apt_pkg.ParseCommandLine(Cnf,Arguments,sys.argv);
    Katie = katie.Katie(Cnf);

    if Cnf["Amber::Options::Help"]:
        usage(0);

    if not arguments:
        usage(1);

    advisory_number = arguments[0];
    changes_files = sys.argv[2:];
    if advisory_number[-8:] == ".changes":
        utils.warn("first argument must be the advisory number.");
        usage(1);
    for file in changes_files:
        file = utils.validate_changes_file_arg(file);
    return (advisory_number, changes_files);

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

def yes_no(prompt):
    while 1:
        answer = string.lower(utils.our_raw_input(prompt+" "));
        if answer == "y" or answer == "n":
            break;
        else:
            print "Invalid answer; please try again.";
    return answer;

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

def spawn(command):
    (result, output) = commands.getstatusoutput(command);
    if (result != 0):
        utils.fubar("Invocation of '%s' failed:\n%s\n" % (command, output), result);

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


def main():
    (advisory_number, changes_files) = init();

    print "About to install the following files: "
    for file in changes_files:
        print "  %s" % (file);
    answer = yes_no("Continue (Y/n)?");
    if answer == "n":
        sys.exit(0);

    os.chdir(Cnf["Dir::Queue::Accepted"]);
    print "Installing packages into the archive...";
    spawn("%s/katie -pa %s" % (Cnf["Dir::Katie"], string.join(changes_files)));
    os.chdir(Cnf["Dir::Katie"]);
    print "Updating file lists for apt-ftparchive...";
    spawn("./jenna");
    print "Updating Packages and Sources files...";
    spawn("apt-ftparchive generate %s" % (utils.which_apt_conf_file()));
    print "Updating Release files...";
    spawn("./ziyi");

    os.chdir(Cnf["Dir::Queue::Done"]);
    print "Generating template advisory...";
    make_advisory(advisory_number, changes_files);

    answer = yes_no("Upload to ftp-master (Y/n)? ");
    if answer == "y":
        upload_files = get_file_list(changes_files);
        print "Uploading files...";
        spawn("lftp -c 'open %s; cd %s; put %s'" % (Cnf["Amber::UploadHost"],
                                                    Cnf["Amber::UploadDir"],
                                                    upload_files));

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

if __name__ == '__main__':
    main();

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