pax_global_header00006660000000000000000000000064130627165340014521gustar00rootroot0000000000000052 comment=76ad240d64845363f477f9172e737f34a5f1a93e .gitignore000066400000000000000000000002311306271653400130510ustar00rootroot00000000000000# Makemaker generated files and dirs. /Makefile /blib /MakeMaker-* /pm_to_blib /MYMETA.yml /MYMETA.json /cover_db/ # Temp and old files. *~ *.old *.swp .perltidyrc000066400000000000000000000013101306271653400132420ustar00rootroot00000000000000-bbao # put line breaks before any operator -nbbc # don't force blank lines before comments (bad for else blocks) -ce # cuddle braces around else -l=79 # usually use 78, but don't want 79-long lines reformatted -pt=2 # don't add extra whitespace around parentheses -sbt=2 # ...or square brackets -sfs # no space before semicolon in for (not that I use this form) -bar # opening-brace-always-on-right -sot # avoid lines with isolated opening tokens -sct # ... same for closing tokens -fs # allow "perltidy, please don't touch this" sections -fws # don't add or delete whitespace -et=4 COPYING000066400000000000000000001045131306271653400121240ustar00rootroot00000000000000 GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The GNU General Public License is a free, copyleft license for software and other kinds of works. The licenses for most software and other practical works are designed to take away your freedom to share and change the works. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change all versions of a program--to make sure it remains free software for all its users. We, the Free Software Foundation, use the GNU General Public License for most of our software; it applies also to any other work released this way by its authors. You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. 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Copyright (C) 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 3 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, see . Also add information on how to contact you by electronic and paper mail. If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode: Copyright (C) This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an "about box". You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see . The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read . MANIFEST000066400000000000000000000005021306271653400122130ustar00rootroot00000000000000COPYING MANIFEST This list of files Makefile.PL README bin/dh_strip_nondeterminism bin/strip-nondeterminism lib/File/StripNondeterminism.pm lib/File/StripNondeterminism/handlers/ar.pm lib/File/StripNondeterminism/handlers/gzip.pm lib/File/StripNondeterminism/handlers/jar.pm lib/File/StripNondeterminism/handlers/zip.pm MANIFEST.SKIP000066400000000000000000000004001306271653400127550ustar00rootroot00000000000000# Version control files and dirs. \B\.git\b # Makemaker generated files and dirs. ^MANIFEST\. ^Makefile$ ^Makefile.old$ ^blib/ ^MakeMaker-\d ^pm_to_blib # Temp, old and emacs backup files. ~$ \.old$ \.swp$ ^#.*#$ ^\.# # Odds and ends \bLEFTOFF$ \bTODO$ Makefile.PL000066400000000000000000000011631306271653400130400ustar00rootroot00000000000000use strict; use warnings; use ExtUtils::MakeMaker; my $MMVER = eval $ExtUtils::MakeMaker::VERSION; WriteMakefile( NAME => 'File::StripNondeterminism', AUTHOR => [ 'Andrew Ayer ', 'Chris Lamb ' ], VERSION_FROM => 'lib/File/StripNondeterminism.pm', ABSTRACT => 'tool for stripping nondeterminism from files', EXE_FILES => [qw(bin/dh_strip_nondeterminism bin/strip-nondeterminism)], PREREQ_PM => { 'Archive::Zip' => 0, 'Getopt::Long' => 0, }, LICENSE => "gpl", dist => { COMPRESS => 'gzip -9nf', SUFFIX => 'gz', }, clean => { FILES => 'StripNondeterminism-*' }, ); README000066400000000000000000000017631306271653400117540ustar00rootroot00000000000000File::StripNondeterminism is a Perl module for stripping bits of nondeterministic information, such as timestamps and file system order, from files such as gzipped files, ZIP archives, and Jar files. It can be used as a post-processing step to make a build reproducible, when the build process itself cannot be made deterministic. It is used as part of the Reproducible Builds project. strip-nondeterminism contains the File::StripNondeterminism Perl module, the strip-nondeterminism command line utility, and the dh_strip_nondeterminism Debhelper add-on. After releasing, please upload a signed tarball: $ VERSION=FIXME $ git archive --format=tar --prefix=strip-nondeterminism-${VERSION}/ ${VERSION} | bzip2 -9 > strip-nondeterminism-${VERSION}.tar.bz2 $ gpg --detach-sig --armor --output=strip-nondeterminism-${VERSION}.tar.bz2.asc < strip-nondeterminism-${VERSION}.tar.bz2 $ scp strip-nondeterminism-${VERSION}* alioth.debian.org:/home/groups/reproducible/htdocs/releases/strip-nondeterminism TODO000066400000000000000000000004511306271653400115550ustar00rootroot00000000000000Write handlers for: [DONE] gzip [DONE] javadoc [DONE] ar [DONE] zip [DONE] jar [DONE] javadoc embedded inside jar file ... [DONE] Write main strip-nondeterminism command It would just parse command line arguments and then execute the correct handler [DONE] Write dh_strip_nondeterminism bin/000077500000000000000000000000001306271653400116355ustar00rootroot00000000000000bin/dh_strip_nondeterminism000077500000000000000000000047151306271653400165210ustar00rootroot00000000000000#!/usr/bin/perl -w =head1 NAME dh_strip_nondeterminism - strip uninteresting, nondeterministic information from files =cut use strict; use File::Find; use Debian::Debhelper::Dh_Lib; use File::StripNondeterminism; use Date::Parse; =head1 SYNOPSIS B [S>] [B<-X>I] =head1 DESCRIPTION B is a debhelper program that is responsible for stripping uninteresting, nondeterministic information, such as timestamps, from compiled files so that the build is reproducible. This program examines your package build directories and works out what to strip on its own. It uses L and filenames to figure out what files should have nondeterminism stripped from them. In general it seems to make very good guesses, and will do the right thing in almost all cases. =head1 OPTIONS =over 4 =item B<-X>I, B<--exclude=>I Exclude files that contain I anywhere in their filename from being stripped. You may use this option multiple times to build up a list of things to exclude. =back =cut init(); my @nondeterministic_files; sub testfile { return if -l $_ or -d $_; # Skip directories and symlinks always. # See if we were asked to exclude this file. # Note that we have to test on the full filename, including directory. my $fn="$File::Find::dir/$_"; foreach my $f (@{$dh{EXCLUDE}}) { return if ($fn=~m/\Q$f\E/); } my $normalizer = File::StripNondeterminism::get_normalizer_for_file($_); if ($normalizer) { push @nondeterministic_files, [$fn, $normalizer]; } } File::StripNondeterminism::init(); foreach my $package (@{$dh{DOPACKAGES}}) { my $tmp=tmpdir($package); @nondeterministic_files=(); find(\&testfile,$tmp); next unless @nondeterministic_files; $File::StripNondeterminism::canonical_time = eval { get_source_date_epoch() }; if (not defined $File::StripNondeterminism::canonical_time) { # Hack for old versions of debhelper isnative($package); # Sets $dh{DATE} as a side-effect $File::StripNondeterminism::canonical_time = str2time($dh{DATE}); } verbose_print("Using $File::StripNondeterminism::canonical_time as canonical time"); foreach (@nondeterministic_files) { my ($path, $normalize) = @$_; verbose_print("Normalizing $path"); eval { $normalize->($path); 1 } or error("$path: $@"); } } =head1 SEE ALSO L This program is a part of debhelper. =head1 AUTHORS Andrew Ayer Chris Lamb =cut bin/strip-nondeterminism000077500000000000000000000072201306271653400157560ustar00rootroot00000000000000#!/usr/bin/perl # # Copyright 2014 Andrew Ayer # # This file is part of strip-nondeterminism. # # strip-nondeterminism 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 3 of the License, or # (at your option) any later version. # # strip-nondeterminism 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 strip-nondeterminism. If not, see . # use strict; use warnings; use File::StripNondeterminism; use Getopt::Long; Getopt::Long::Configure(qw(no_ignore_case permute bundling)); my $cmd = $0; $cmd =~ s/.*\///; my $usage = "Usage: $cmd [-v|--verbose] [-t|--type FILETYPE] [-T|--timestamp SECONDS] [--clamp-timestamp] FILENAME\n"; my ($filetype, $timestamp, $clamp_timestamp, $want_help, $verbose, $want_version); my $getopt = Getopt::Long::Parser->new; $getopt->configure(qw(no_ignore_case permute bundling)); $getopt->getoptions( 'type|t=s', \$filetype, 'timestamp|T=i', \$timestamp, 'clamp-timestamp!', \$clamp_timestamp, 'help|h', \$want_help, 'verbose|v', \$verbose, 'version|V', \$want_version ) or die $usage; if ($want_help) { print $usage; exit 0; } if ($want_version) { print "$cmd version $File::StripNondeterminism::VERSION\n"; exit 0; } File::StripNondeterminism::init(); $File::StripNondeterminism::canonical_time = $timestamp; $File::StripNondeterminism::clamp_time = $clamp_timestamp; die $usage if @ARGV == 0; for my $filename (@ARGV) { die "$filename: Does not exist\n" unless -e $filename; my $normalizer; if (defined $filetype) { $normalizer = File::StripNondeterminism::get_normalizer_by_name($filetype); die "$filetype: Unknown file type\n" unless $normalizer; } else { $normalizer = File::StripNondeterminism::get_normalizer_for_file($filename); next unless $normalizer; } print "Normalizing $filename\n" if $verbose; eval { $normalizer->($filename); 1 } or die "strip-nondeterminism: $filename: $@"; } __END__ =head1 NAME strip-nondeterminism - strip nondeterministic information from files =head1 SYNOPSIS strip-nondeterminism [-t filetype] filename ... =head1 DESCRIPTION B is a tool to strip bits of nondeterministic information, such as timestamps, from files. It can be used as a post-processing step to make a build reproducible, when the build process itself cannot be made deterministic. =head1 OPTIONS =over 4 =item B<-t> I, B<--type> I Use the normalizer for the given file type (ar, gzip, jar, zip). If this option is not specified, the file type is detected automatically based on the file name extension. =item B<-T> I, B<--timestamp> I Instead of stripping timestamps from files, set them to the given number of seconds since January 1, 1970. =item B<--clamp-timestamp> Only replace timestamps if they are later than the time specified to B<--timestamp>. You can use this option to ensure that only timestamps introduced as part of the build process are replaced. NOT YET IMPLEMENTED FOR ALL FILE FORMATS. =item B<-h>, B<--help> Display this help message. =item B<-V>, B<--version> Print only the version string and then quit. =back =head1 AUTHORS Andrew Ayer Chris Lamb =head1 COPYRIGHT strip-nondeterminism is free software. You can redistribute it and/or modify it under the terms of the GNU General Public License, version 3. =cut lib/000077500000000000000000000000001306271653400116335ustar00rootroot00000000000000lib/File/000077500000000000000000000000001306271653400125125ustar00rootroot00000000000000lib/File/StripNondeterminism.pm000066400000000000000000000077211306271653400170740ustar00rootroot00000000000000# # Copyright 2014 Andrew Ayer # # This file is part of strip-nondeterminism. # # strip-nondeterminism 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 3 of the License, or # (at your option) any later version. # # strip-nondeterminism 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 strip-nondeterminism. If not, see . # package File::StripNondeterminism; use strict; use warnings; use POSIX qw(tzset); use File::StripNondeterminism::handlers::ar; use File::StripNondeterminism::handlers::gettext; use File::StripNondeterminism::handlers::gzip; use File::StripNondeterminism::handlers::jar; use File::StripNondeterminism::handlers::javadoc; use File::StripNondeterminism::handlers::pearregistry; use File::StripNondeterminism::handlers::png; use File::StripNondeterminism::handlers::javaproperties; use File::StripNondeterminism::handlers::zip; our($VERSION, $canonical_time, $clamp_time); $VERSION = '0.032'; # 0.032 sub init { $ENV{'TZ'} = 'UTC'; tzset(); } sub _get_file_type { my $file=shift; open(FILE, '-|') # handle all filenames safely || exec('file', $file) || die "can't exec file: $!"; my $type=; close FILE; return $type; } sub get_normalizer_for_file { $_ = shift; return undef if -d $_; # Skip directories # ar if (m/\.a$/ && _get_file_type($_) =~ m/ar archive/) { return \&File::StripNondeterminism::handlers::ar::normalize; } # gettext if (m/\.g?mo$/ && _get_file_type($_) =~ m/GNU message catalog/) { return \&File::StripNondeterminism::handlers::gettext::normalize; } # gzip if (m/\.(gz|dz)$/ && _get_file_type($_) =~ m/gzip compressed data/) { return \&File::StripNondeterminism::handlers::gzip::normalize; } # jar if (m/\.(jar|war|hpi|apk)$/ && _get_file_type($_) =~ m/(Java|Zip) archive data/) { return \&File::StripNondeterminism::handlers::jar::normalize; } # javadoc if (m/\.html$/ && File::StripNondeterminism::handlers::javadoc::is_javadoc_file($_)) { return \&File::StripNondeterminism::handlers::javadoc::normalize; } # pear registry if ( m/\.reg$/ && File::StripNondeterminism::handlers::pearregistry::is_registry_file( $_) ) { return \&File::StripNondeterminism::handlers::pearregistry::normalize; } # PNG if (m/\.png$/ && _get_file_type($_) =~ m/PNG image data/) { return \&File::StripNondeterminism::handlers::png::normalize; } # pom.properties, version.properties if ( m/\.properties$/ && File::StripNondeterminism::handlers::javaproperties::is_java_properties_file( $_) ) { return \&File::StripNondeterminism::handlers::javaproperties::normalize; } # zip if (m/\.(zip|pk3|epub|whl|xpi|htb|zhfst|par)$/ && _get_file_type($_) =~ m/Zip archive data|EPUB document/) { return \&File::StripNondeterminism::handlers::zip::normalize; } return undef; } sub get_normalizer_by_name { $_ = shift; return \&File::StripNondeterminism::handlers::ar::normalize if $_ eq 'ar'; return \&File::StripNondeterminism::handlers::gettext::normalize if $_ eq 'gettext'; return \&File::StripNondeterminism::handlers::gzip::normalize if $_ eq 'gzip'; return \&File::StripNondeterminism::handlers::jar::normalize if $_ eq 'jar'; return \&File::StripNondeterminism::handlers::javadoc::normalize if $_ eq 'javadoc'; return \&File::StripNondeterminism::handlers::pearregistry::normalize if $_ eq 'pearregistry'; return \&File::StripNondeterminism::handlers::png::normalize if $_ eq 'png'; return \&File::StripNondeterminism::handlers::javaproperties::normalize if $_ eq 'javaproperties'; return \&File::StripNondeterminism::handlers::zip::normalize if $_ eq 'zip'; return undef; } 1; lib/File/StripNondeterminism/000077500000000000000000000000001306271653400165275ustar00rootroot00000000000000lib/File/StripNondeterminism/Common.pm000066400000000000000000000026571306271653400203270ustar00rootroot00000000000000# # Copyright 2016 Ryuunosuke Ayanokouzi # # This file is part of strip-nondeterminism. # # strip-nondeterminism is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # strip-nondeterminism is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with strip-nondeterminism. If not, see . # package File::StripNondeterminism::Common; require Exporter; @ISA = qw(Exporter); @EXPORT_OK = qw(copy_data); use strict; use warnings; use File::Copy; # Copy ONLY data from "$from_path" to "$to_path". # It means that... # 1. This function preserves as much of file "attributes" # (information stored in "inode" in Unix-style file system term) # of "$to_path" as possible. # 2. This function simulates file editing of "$to_path". # 3. After this function, "$to_path" would be a file associated with # a copied "data" from "from_path" and a "inode" from "$to_path". sub copy_data { my $from_path = shift; my $to_path = shift; return copy($from_path, $to_path); } 1; lib/File/StripNondeterminism/handlers/000077500000000000000000000000001306271653400203275ustar00rootroot00000000000000lib/File/StripNondeterminism/handlers/ar.pm000066400000000000000000000053461306271653400212770ustar00rootroot00000000000000# Copyright © 2014 Jérémy Bobbio # Copyright © 2014 Niko Tyni # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . # # Some code borrowed from ArFile # Copyright (C) 2007 Stefano Zacchiroli # Copyright (C) 2007 Filippo Giunchedi package File::StripNondeterminism::handlers::ar; use strict; use warnings; use Fcntl q/SEEK_SET/; sub normalize { my ($file) = @_; my $GLOBAL_HEADER = "!\n"; my $GLOBAL_HEADER_LENGTH = length $GLOBAL_HEADER; my $FILE_HEADER_LENGTH = 60; my $FILE_MAGIC = "`\n"; my $buf; open(my $fh, '+<', $file) or die("failed to open $file for read+write: $!"); read $fh, $buf, $GLOBAL_HEADER_LENGTH; return 0 if $buf ne $GLOBAL_HEADER; while (1) { my $file_header_start = tell $fh; my $count = read $fh, $buf, $FILE_HEADER_LENGTH; die "reading $file failed: $!" if !defined $count; last if $count == 0; # http://en.wikipedia.org/wiki/Ar_(Unix) #from to Name Format #0 15 File name ASCII #16 27 File modification date Decimal #28 33 Owner ID Decimal #34 39 Group ID Decimal #40 47 File mode Octal #48 57 File size in bytes Decimal #58 59 File magic \140\012 die "Incorrect header length" if length $buf != $FILE_HEADER_LENGTH; die "Incorrect file magic" if substr($buf, 58, length($FILE_MAGIC)) ne $FILE_MAGIC; my $file_mode = oct(substr($buf, 40, 8)); my $file_size = substr($buf, 48, 10); die "Incorrect file size" if $file_size < 1; seek $fh, $file_header_start + 16, SEEK_SET; # mtime syswrite $fh, sprintf("%-12d", $File::StripNondeterminism::canonical_time // 0); # owner syswrite $fh, sprintf("%-6d", 0); # group syswrite $fh, sprintf("%-6d", 0); # file mode syswrite $fh, sprintf("%-8o", ($file_mode & oct(100)) ? oct(755) : oct(644)); # move to next member my $padding = $file_size % 2; seek $fh, $file_header_start + $FILE_HEADER_LENGTH + $file_size + $padding, SEEK_SET; } return 1; } 1; lib/File/StripNondeterminism/handlers/gettext.pm000066400000000000000000000053551306271653400223610ustar00rootroot00000000000000# # Copyright 2016 Reiner Herrmann # # This file is part of strip-nondeterminism. # # strip-nondeterminism 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 3 of the License, or # (at your option) any later version. # # strip-nondeterminism 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 strip-nondeterminism. If not, see . # package File::StripNondeterminism::handlers::gettext; use Time::Piece; use POSIX qw(strftime); use strict; use warnings; sub read_file { my $filename = shift; local $/ = undef; open(my $fh, '<', $filename) or die "Can't open file $filename for reading: $!"; binmode($fh); my $buf = <$fh>; close($fh); return $buf; } sub normalize { my ($mo_filename, %options) = @_; my $norm_time = $File::StripNondeterminism::canonical_time // 0; my $fmt; my $buf = read_file($mo_filename); my $magic = unpack("V", substr($buf, 0*4, 4)); if ($magic == 0x950412DE) { # little endian $fmt = "V"; } elsif ($magic == 0xDE120495) { # big endian $fmt = "N"; } else { # unknown format return 0; } my ($revision, $nstrings, $orig_to, $trans_to) = unpack($fmt x 4, substr($buf, 1*4, 4*4)); my $major = int($revision / 256); my $minor = int($revision % 256); return 0 if $major > 1; my $modified = 0; for (my $i=0; $i < $nstrings; $i++) { my $len = unpack($fmt, substr($buf, $orig_to + $i*8, 4)); next if $len > 0; my $offset = unpack($fmt, substr($buf, $orig_to + $i*8 + 4, 4)); my $trans_len = unpack($fmt, substr($buf, $trans_to + $i*8)); my $trans_offset = unpack($fmt, substr($buf, $trans_to + $i*8 + 4)); my $trans_msg = substr($buf, $trans_offset, $trans_len); next unless $trans_msg =~ m/^POT-Creation-Date: (.*)/m; my $pot_date = $1; my $time; eval {$time = Time::Piece->strptime($pot_date, "%Y-%m-%d %H:%M%z");}; next if $@; next if $time <= $norm_time; my $new_time = strftime("%Y-%m-%d %H:%M%z", gmtime($norm_time)); $trans_msg =~ s/\QPOT-Creation-Date: $pot_date\E/POT-Creation-Date: $new_time/; next if length($trans_msg) != $trans_len; $buf = substr($buf, 0, $trans_offset) . $trans_msg . substr($buf, $trans_offset + $trans_len); $modified = 1; } if ($modified) { open(my $fh, '>', $mo_filename) or die "Can't open file $mo_filename for writing: $!"; binmode($fh); print $fh $buf; close($fh); } return $modified; } 1; lib/File/StripNondeterminism/handlers/gzip.pm000066400000000000000000000101441306271653400216360ustar00rootroot00000000000000# # Copyright 2014 Andrew Ayer # # This file is part of strip-nondeterminism. # # strip-nondeterminism is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # strip-nondeterminism is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with strip-nondeterminism. If not, see . # package File::StripNondeterminism::handlers::gzip; use strict; use warnings; use File::StripNondeterminism::Common qw(copy_data); use File::Temp; use File::Basename; use constant { FTEXT => 1 << 0, FHCRC => 1 << 1, FEXTRA => 1 << 2, FNAME => 1 << 3, FCOMMENT => 1 << 4, }; sub normalize { my ($filename) = @_; open(my $fh, '<', $filename) or die "Unable to open $filename for reading: $!"; # See RFC 1952 # 0 1 2 3 4 5 6 7 8 9 10 # +---+---+---+---+---+---+---+---+---+---+ # |ID1|ID2|CM |FLG| MTIME |XFL|OS | # +---+---+---+---+---+---+---+---+---+---+ # Read the current header my $hdr; my $bytes_read = read($fh, $hdr, 10); return 0 unless $bytes_read == 10; my ($id1, $id2, $cm, $flg, $mtime, $xfl, $os) = unpack('CCCCl $File::StripNondeterminism::canonical_time) { $mtime = $File::StripNondeterminism::canonical_time; } } else { $mtime = 0; # gzip treats 0 as "no timestamp" } } # TODO: question: normalize some of the other fields, such as OS? my $tempfile = File::Temp->new(DIR => dirname($filename)); # Write a new header print $tempfile pack('CCCClclose; copy_data($tempfile->filename, $filename) or die "$filename: unable to overwrite: copy_data: $!"; return 1; } 1; lib/File/StripNondeterminism/handlers/jar.pm000066400000000000000000000100441306271653400214400ustar00rootroot00000000000000# # Copyright 2014 Andrew Ayer # # This file is part of strip-nondeterminism. # # strip-nondeterminism 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 3 of the License, or # (at your option) any later version. # # strip-nondeterminism 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 strip-nondeterminism. If not, see . # package File::StripNondeterminism::handlers::jar; use strict; use warnings; use File::StripNondeterminism::Common qw(copy_data); use Archive::Zip; use File::Basename; use File::StripNondeterminism::handlers::zip; use File::StripNondeterminism::handlers::javadoc; use File::StripNondeterminism::handlers::javaproperties; sub _jar_filename_cmp($$) { my ($a, $b) = @_; # META-INF/ and META-INF/MANIFEST.MF are expected to be the first # entries in the Zip archive. return 0 if $a eq $b; for (qw{META-INF/ META-INF/MANIFEST.MF}) { return -1 if $a eq $_; return 1 if $b eq $_; } return $a cmp $b; } sub _jar_normalize_manifest { my ($filename) = @_; open(my $fh, '<', $filename) or die "Unable to open $filename for reading: $!"; my $tempfile = File::Temp->new(DIR => dirname($filename)); my $modified = 0; while (defined(my $line = <$fh>)) { # Bnd-LastModified contains a timestamp. # Built-By contains the system username. if ($line =~ /^(Bnd-LastModified|Built-By):/) { $modified = 1; next; } print $tempfile $line; } if ($modified) { $tempfile->close; copy_data($tempfile->filename, $filename) or die "$filename: unable to overwrite: copy_data: $!"; } return $modified; } sub _jar_normalize_member { my ($member) = @_; # $member is a ref to an Archive::Zip::Member return if $member->isDirectory(); if ($member->fileName() =~ /\.html$/ &&File::StripNondeterminism::handlers::zip::peek_member($member, 1024) =~ /\ Generated Documentation (Untitled)