r424@erker: lars | 2008-09-28 23:38:45 +0200
module Mail::Ezmlm::GpgEzmlm: * simplified code for config file handling * added "cleanup" of dotqmail files * added wrapper around ezmlm-make (update)
This commit is contained in:
parent
71edc021ff
commit
5bcdb2799c
1 changed files with 279 additions and 159 deletions
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@ -30,7 +30,6 @@ use warnings;
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use diagnostics;
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use vars qw($GPG_EZMLM_BASE $VERSION @ISA @EXPORT @EXPORT_OK);
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use File::Copy;
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use File::Path;
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use Carp;
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use Mail::Ezmlm;
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@ -136,66 +135,40 @@ Otherwise it returns undef.
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sub convert_to_encrypted {
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my $class = shift;
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my $list_dir = shift;
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my ($dot_loc, $backup_dir, $dot_prefix);
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my ($backup_dir);
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# untaint "list_dir"
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$list_dir =~ m/^([\w\d\_\-\.\@ \/]+)$/;
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if (defined($1)) {
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$list_dir = $1;
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} else {
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warn "List directory contains invalid characters!";
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return undef;
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}
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# retrieve location of dotqmail-files
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$dot_loc = _get_dotqmail_location($list_dir);
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# untaint "dot_loc"
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$dot_loc =~ m/^([\w\d\_\-\.\@ \/]+)$/;
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if (defined($1)) {
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$dot_loc = $1;
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} else {
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warn "Directory name of dotqmail files contains invalid characters!";
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warn "[GpgEzmlm] list directory contains invalid characters!";
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return undef;
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}
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# the backup directory will contain the old config file and the dotqmails
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$backup_dir = $list_dir . '/.gpg-ezmlm.backup';
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$backup_dir = _get_config_backup_dir($list_dir);
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if ((! -e $backup_dir) && (!mkdir($backup_dir))) {
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warn "failed to create gpg-ezmlm conversion backup dir: $backup_dir";
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return undef;
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}
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# the "dot_prefix" is the basename of the main dotqmail file
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# (e.g. '.qmail-list-foo')
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$dot_loc =~ m/\/([^\/]+)$/;
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if (defined($1)) {
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$dot_prefix = $1;
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} else {
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warn 'invalid location of dotqmail file: ' . $dot_loc;
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warn "[GpgEzmlm] failed to create gpg-ezmlm conversion backup dir ("
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. "$backup_dir): $!";
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return undef;
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}
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# check the input
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unless (defined($list_dir)) {
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warn 'must define directory in convert_to_encrypted()';
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warn '[GpgEzmlm] must define directory in convert_to_encrypted()';
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return undef;
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}
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# does the list directory exist?
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unless (-d $list_dir) {
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warn 'directory does not exist: ' . $list_dir;
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warn '[GpgEzmlm] directory does not exist: ' . $list_dir;
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return undef;
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}
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# try to access the list as an encryted one (this should fail)
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if (Mail::Ezmlm::GpgEzmlm->new($list_dir)) {
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warn 'list is already encrypted: ' . $list_dir;
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return undef;
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}
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unless (defined($dot_loc) && ($dot_loc ne '') && (-e $dot_loc)) {
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warn 'dotqmail files not found: ' . $dot_loc;
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# the list should currently _not_ be encrypted
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if (_is_encrypted($list_dir)) {
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warn '[GpgEzmlm] list is already encrypted: ' . $list_dir;
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return undef;
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}
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@ -203,90 +176,32 @@ sub convert_to_encrypted {
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# here starts the real conversion - the code is based on
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# "gpg-ezmlm-convert.pl" - see http://www.synacklabs.net/projects/crypt-ml/
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# move the base dotqmail file
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if (open(DOT_NEW, ">$backup_dir/$dot_prefix.new")) {
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if (open(DOT_ORIG, "<$dot_loc")) {
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while (<DOT_ORIG>) {
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my $line = $_;
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print DOT_NEW ($line =~ /ezmlm-send\s+(\S+)/)
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? "\|$GPG_EZMLM_BASE/gpg-ezmlm-send.pl $1\n"
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: $line;
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}
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close DOT_ORIG;
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# update the dotqmail files
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return undef unless (_cleanup_dotqmail_files($list_dir, $backup_dir));
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# create the new config file, if it did not exist before
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unless (-e "$backup_dir/config.gpg-ezmlm") {
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if (open(CONFIG_NEW, ">$backup_dir/config.gpg-ezmlm")) {
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# just create the empty file (default)
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close CONFIG_NEW;
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} else {
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warn "failed to open base dotqmail file: $dot_loc";
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warn "[GpgEzmlm] failed to create new config file ("
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. "$backup_dir/config.gpg-ezmlm): $!";
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return undef;
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}
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close DOT_NEW;
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} else {
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warn "failed to create new base dotqmail file: "
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. "$backup_dir/$dot_prefix.new";
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return undef;
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}
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# move the "-default" dotqmail file
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if (open(DEFAULT_NEW, ">$backup_dir/$dot_prefix-default.new")) {
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if (open(DEFAULT_ORIG, "<$dot_loc-default")) {
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while (<DEFAULT_ORIG>) {
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my $line = $_;
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print DEFAULT_NEW ($line =~ /ezmlm-manage\s+(\S+)/)
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? "\|$GPG_EZMLM_BASE/gpg-ezmlm-manage.pl $1\n"
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: $line;
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}
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close DEFAULT_ORIG;
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} else {
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warn "failed to open default dotqmail file: $dot_loc-default";
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return undef;
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}
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close DEFAULT_NEW;
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} else {
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warn "failed to create new default dotqmail file: "
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. "$backup_dir/$dot_prefix-default.new";
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return undef;
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}
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# create the new config file
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if (open(CONFIG_NEW, ">$backup_dir/config.new")) {
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# just create the empty file (default)
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close CONFIG_NEW;
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} else {
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warn "failed to create new config file: $backup_dir/config.new";
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return undef;
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}
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return undef unless (&_enable_encryption_config_file($list_dir));
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# create the (empty) gnupg keyring directory - this enables the keyring
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# management interface. Don't create it, if it already exists.
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if ((!-e "$list_dir/.gnupg") && (!mkdir("$list_dir/.gnupg", 0700))) {
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warn "failed to create the gnupg keyring directory: $!";
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warn "[GpgEzmlm] failed to create the gnupg keyring directory: $!";
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return undef;
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}
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# move the original config file (if it exists) to the backup directory
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if ((-e "$list_dir/config")
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&& (!rename("$list_dir/config", "$backup_dir/config"))) {
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warn "failed to backup the original config file "
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. "'$list_dir/config' to '$backup_dir/config': $!";
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return undef;
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}
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# replace the config file with the new empty one
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unless (rename("$backup_dir/config.new", "$list_dir/config")) {
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warn "failed to move the new config file '$backup_dir/config.new'"
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. " to '$list_dir/config': $!";
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return undef;
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}
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# move the original files to the backup and the new files back
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unless ((rename($dot_loc, "$backup_dir/$dot_prefix"))
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&& (rename("$backup_dir/$dot_prefix.new", $dot_loc))
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&& (rename("$dot_loc-default", "$backup_dir/$dot_prefix-default"))
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&& (rename("$backup_dir/$dot_prefix-default.new",
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"$dot_loc-default"))) {
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warn "failed to move dotqmail files for gpg-ezmlm: $!";
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return undef;
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}
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return $class->new($list_dir);
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my $result = $class->new($list_dir);
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return $result;
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}
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# == convert an encrypted list back to plaintext ==
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@ -348,7 +263,7 @@ sub convert_to_plaintext {
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# the backup directory should contain the old config file (if it existed)
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# and the original dotqmail files
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$backup_dir = $list_dir . '/.gpg-ezmlm.backup';
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$backup_dir = _get_config_backup_dir($self->thislist());
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unless (-r $backup_dir) {
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warn "[GpgEzmlm] failed to revert conversion - the backup directory "
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. "is missing: $backup_dir";
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@ -361,7 +276,7 @@ sub convert_to_plaintext {
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if (defined($1)) {
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$dot_prefix = $1;
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} else {
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warn 'invalid location of dotqmail file: ' . $dot_loc;
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warn '[GpgEzmlm] invalid location of dotqmail file: ' . $dot_loc;
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return undef;
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}
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@ -374,22 +289,9 @@ sub convert_to_plaintext {
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# start reverting the gpg-ezmlm conversion:
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# - restore old dotqmail files
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# - restore old config file (if it existed before)
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# replace the config file with the original one (if it exists)
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if (-e "$backup_dir/config") {
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unless (File::Copy::copy("$backup_dir/config", "$list_dir/config")) {
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warn "[GpgEzmlm] failed to restore the original config file '"
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. "$backup_dir/config' to '$list_dir/config': $!";
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return undef;
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}
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} else {
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unless (unlink("$list_dir/config")) {
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warn "[GpgEzmlm] failed to remove the gpg-ezmlm config file ('"
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. "$list_dir/config'): $!";
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return undef;
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}
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}
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# restore original config file (if it exists)
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&_enable_plaintext_config_file($list_dir);
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# replace the dotqmail files with the ones from the backup
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unless ((File::Copy::copy("$backup_dir/$dot_prefix", "$dot_loc"))
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@ -399,40 +301,50 @@ sub convert_to_plaintext {
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return undef;
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}
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# remove the original directory
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unless (File::Path::rmtree($backup_dir)) {
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warn "[GpgEzmlm] failed to remove configuration backup directory ('"
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. $backup_dir . "'): $!";
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# just warn - don't fail
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}
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$self = Mail::Ezmlm->new($list_dir);
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return $self;
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}
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# == Update the current list ==
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# == Update the "normal" settings of the current list ==
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=head2 Updating the configuration of the current list:
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=head2 Updating the common configuration settings of the current list:
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$list->update({ 'allowKeySubmission' => 1 });
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$list->update("moUx");
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=cut
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# update the "normal" (=not related to encryption) settings of the list
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sub update {
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my @params = @_;
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my $self = shift(@params);
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my (%switches, %ok_switches, $one_key, @delete_switches);
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my $self = shift;
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my $options = shift;
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if (scalar @params > 1) {
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%switches = @params;
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} else {
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my $plaintext_switches = shift(@params);
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# only do the "default" configuration of an ezmlm list
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return $self->SUPER::update($plaintext_switches);
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}
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my ($result);
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&_enable_plaintext_config_file($self->thislist());
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$result = $self->SUPER::update($options);
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&_enable_encryption_config_file($self->thislist());
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# "repair" the dotqmail files
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&_cleanup_dotqmail_files($self->thislist());
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# the normal configuration via "ezmlm-make" may not happen, since
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# this would overwrite the dotqmail files. Thus we just do nothing.
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return $result;
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}
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# == Update the encryption settings of the current list ==
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=head2 Updating the configuration of the current list:
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$list->update_special({ 'allowKeySubmission' => 1 });
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=cut
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# update the encryption specific settings
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sub update_special {
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my ($self, %switches) = @_;
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my (%ok_switches, $one_key, @delete_switches);
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# we continue with the encryption settings
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# check for important files: 'config'
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unless (_is_encrypted($self->thislist())) {
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$self->_seterror(-1, "Update failed: '" . $self->thislist()
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@ -463,7 +375,7 @@ sub update {
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# %switches should be empty now
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if (%switches) {
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foreach $one_key (keys %switches) {
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warn "unsupported setting: $one_key";
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warn "[GpgEzmlm] unsupported setting: $one_key";
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}
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}
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@ -502,7 +414,7 @@ sub update {
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} else {
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$errorstring = "failed to write to temporary config file: $config_file_new";
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$self->_seterror(-1, $errorstring);
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warn $errorstring;
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warn "[GpgEzmlm] $errorstring";
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close CONFIG_OLD;
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return (1==0);
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}
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@ -510,7 +422,7 @@ sub update {
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} else {
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$errorstring = "failed to read the config file: $config_file_old";
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$self->_seterror(-1, $errorstring);
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warn $errorstring;
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warn "[GpgEzmlm] $errorstring";
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return (1==0);
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}
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close CONFIG_OLD;
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@ -518,7 +430,7 @@ sub update {
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$errorstring = "failed to move new config file ($config_file_new) "
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. "to original config file ($config_file_old)";
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$self->_seterror(-1, $errorstring);
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warn $errorstring;
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warn "[GpgEzmlm] $errorstring";
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return (1==0);
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}
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$self->_seterror(undef);
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@ -537,13 +449,11 @@ getconfig() returns a hash including all available settings
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=cut
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sub getconfig {
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# retrieve the specific configuration of the list
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sub getconfig_special {
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my ($self) = @_;
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my (%options, $list_dir);
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# return the "normal" list configuration when asked for a string
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return $self->SUPER::getconfig() unless (wantarray);
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# continue with retrieving the encryption configuration
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# define defaults
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@ -604,7 +514,7 @@ sub _get_dotqmail_location {
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# the "config" file was used before ezmlm-idx v5
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$dot_loc = $1 if ($plain_list->getpart("config") =~ m/^T:(.*)$/);
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} else {
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warn 'list configuration file not found: ' . $list_dir;
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warn '[GpgEzmlm] list configuration file not found: ' . $list_dir;
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$dot_loc = undef;
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}
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} else {
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@ -644,16 +554,226 @@ sub _is_encrypted {
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}
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} else {
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# failed to create a plaintext mailing list object
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warn "failed to create Mail::Ezmlm object for: " . $list_dir;
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warn "[GpgEzmlm] failed to create Mail::Ezmlm object for: "
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. $list_dir;
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}
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} else {
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warn "Directory does not appear to contain a valid list: " . $list_dir;
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warn "[GpgEzmlm] Directory does not appear to contain a valid list: "
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. $list_dir;
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}
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return $result;
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}
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# what is done:
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# - copy current dotqmail files to the backup directory
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# - replace "ezmlm-send" and "ezmlm-manage" with the gpg-ezmlm replacements
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# (in the real dotqmail files)
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# This function should be called:
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# 1) as part of the plaintext->encryption conversion of a list
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# 2) after calling ezmlm-make for an encrypted list (since the dotqmail files
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# are overwritten by ezmlm-make)
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sub _cleanup_dotqmail_files {
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my $list_dir = shift;
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my ($backup_dir, $dot_loc, $dot_prefix);
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# where should we store the current dotqmail files?
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$backup_dir = _get_config_backup_dir($list_dir);
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# retrieve location of dotqmail-files
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$dot_loc = _get_dotqmail_location($list_dir);
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# untaint "dot_loc"
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$dot_loc =~ m/^([\w\d\_\-\.\@ \/]+)$/;
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if (defined($1)) {
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$dot_loc = $1;
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} else {
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$dot_loc =~ s/\W/_/g;
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warn "[GpgEzmlm] directory name of dotqmail files contains invalid "
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. "characters: $dot_loc (escaped special characters)";
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return undef;
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}
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# the "dot_prefix" is the basename of the main dotqmail file
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# (e.g. '.qmail-list-foo')
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$dot_loc =~ m/\/([^\/]+)$/;
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if (defined($1)) {
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$dot_prefix = $1;
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} else {
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warn '[GpgEzmlm] invalid location of dotqmail file: ' . $dot_loc;
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return undef;
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}
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# check if the base dotqmail file exists
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unless (defined($dot_loc) && ($dot_loc ne '') && (-e $dot_loc)) {
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warn '[GpgEzmlm] dotqmail files not found: ' . $dot_loc;
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return undef;
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}
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# move the base dotqmail file
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if (open(DOT_NEW, ">$backup_dir/$dot_prefix.new")) {
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if (open(DOT_ORIG, "<$dot_loc")) {
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my $line_found = (0==1);
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while (<DOT_ORIG>) {
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my $line = $_;
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if ($line =~ /ezmlm-send\s+(\S+)/) {
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print DOT_NEW "\|$GPG_EZMLM_BASE/gpg-ezmlm-send.pl $1\n";
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$line_found = (0==0);
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} else {
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print DOT_NEW $line;
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}
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}
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close DOT_ORIG;
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# move the original file to the backup and the new file back
|
||||
if ($line_found) {
|
||||
unless ((rename($dot_loc, "$backup_dir/$dot_prefix"))
|
||||
&& (rename("$backup_dir/$dot_prefix.new", $dot_loc))) {
|
||||
warn "[GpgEzmlm] failed to move base dotqmail file: $!";
|
||||
return undef;
|
||||
}
|
||||
} else {
|
||||
warn "[GpgEzmlm] Warning: I expected a pristine base "
|
||||
. "dotqmail file: $dot_loc";
|
||||
}
|
||||
} else {
|
||||
warn "[GpgEzmlm] failed to open base dotqmail file: $dot_loc";
|
||||
return undef;
|
||||
}
|
||||
close DOT_NEW;
|
||||
} else {
|
||||
warn "[GpgEzmlm] failed to create new base dotqmail file: "
|
||||
. "$backup_dir/$dot_prefix.new";
|
||||
return undef;
|
||||
}
|
||||
|
||||
# move the "-default" dotqmail file
|
||||
if (open(DEFAULT_NEW, ">$backup_dir/$dot_prefix-default.new")) {
|
||||
if (open(DEFAULT_ORIG, "<$dot_loc-default")) {
|
||||
my $line_found = (0==1);
|
||||
while (<DEFAULT_ORIG>) {
|
||||
my $line = $_;
|
||||
if ($line =~ /ezmlm-manage\s+(\S+)/) {
|
||||
print DEFAULT_NEW "\|$GPG_EZMLM_BASE/gpg-ezmlm-manage.pl $1\n";
|
||||
$line_found = (0==0);
|
||||
} else {
|
||||
print DEFAULT_NEW $line;
|
||||
}
|
||||
}
|
||||
close DEFAULT_ORIG;
|
||||
# move the original file to the backup and the new file back
|
||||
if ($line_found) {
|
||||
unless ((rename("$dot_loc-default",
|
||||
"$backup_dir/$dot_prefix-default"))
|
||||
&& (rename("$backup_dir/$dot_prefix-default.new",
|
||||
"$dot_loc-default"))) {
|
||||
warn "[GpgEzmlm] failed to move default dotqmail file: $!";
|
||||
return undef;
|
||||
}
|
||||
} else {
|
||||
warn "[GpgEzmlm] Warning: I expected a pristine default "
|
||||
. "dotqmail file: $dot_loc-default";
|
||||
}
|
||||
} else {
|
||||
warn "[GpgEzmlm] failed to open default dotqmail file: "
|
||||
. "$dot_loc-default";
|
||||
return undef;
|
||||
}
|
||||
close DEFAULT_NEW;
|
||||
} else {
|
||||
warn "[GpgEzmlm] failed to create new default dotqmail file: "
|
||||
. "$backup_dir/$dot_prefix-default.new";
|
||||
return undef;
|
||||
}
|
||||
|
||||
return (0==0);
|
||||
}
|
||||
|
||||
|
||||
# activate the config file for encryption (gpg-ezmlm)
|
||||
sub _enable_encryption_config_file {
|
||||
my $list_dir = shift;
|
||||
my ($backup_dir);
|
||||
|
||||
$backup_dir = _get_config_backup_dir($list_dir);
|
||||
|
||||
# check, if the current config file is for gpg-ezmlm or for ezmlm-idx
|
||||
if (_is_encrypted($list_dir)) {
|
||||
warn "[GpgEzmlm] I expected a pristine ezmlm-idx config file: "
|
||||
. "$list_dir/config";
|
||||
return undef;
|
||||
}
|
||||
|
||||
# store the current original config file
|
||||
if ((-e "$list_dir/config") && (!File::Copy::copy("$list_dir/config",
|
||||
"$backup_dir/config.original"))) {
|
||||
warn "[GpgEzmlm] failed to save the current ezmlm-idx config file ('"
|
||||
. "$list_dir/config') to '$backup_dir/config.original': $!";
|
||||
return undef;
|
||||
}
|
||||
|
||||
# copy the encryption config file to the list directory
|
||||
unless (File::Copy::copy("$backup_dir/config.gpg-ezmlm",
|
||||
"$list_dir/config")) {
|
||||
warn "[GpgEzmlm] failed to enable the gpg-ezmlm config file (from '"
|
||||
. "$backup_dir/config.gpg-ezmlm' to '$list_dir/config'): $!";
|
||||
return undef;
|
||||
}
|
||||
|
||||
return (0==0);
|
||||
}
|
||||
|
||||
|
||||
# activate the config file for plain ezmlm-idx lists
|
||||
sub _enable_plaintext_config_file {
|
||||
my $list_dir = shift;
|
||||
my ($backup_dir);
|
||||
|
||||
$backup_dir = _get_config_backup_dir($list_dir);
|
||||
|
||||
# check, if the current config file is for gpg-ezmlm or for ezmlm-idx
|
||||
unless (_is_encrypted($list_dir)) {
|
||||
warn "[GpgEzmlm] I expected a config file for gpg-ezmlm: "
|
||||
. "$list_dir/config";
|
||||
return undef;
|
||||
}
|
||||
|
||||
# store the current gpg-ezmlm config file
|
||||
unless (File::Copy::copy("$list_dir/config",
|
||||
"$backup_dir/config.gpg-ezmlm")) {
|
||||
warn "[GpgEzmlm] failed to save the current gpg-ezmlm config file ('"
|
||||
. "$list_dir/config') to '$backup_dir/config.gpg-ezmlm': $!";
|
||||
return undef;
|
||||
}
|
||||
|
||||
# copy the ezmlm-idx config file to the list directory - or remove the
|
||||
# currently active gpg-ezmlm config file
|
||||
if (-e "$backup_dir/config.original") {
|
||||
unless (File::Copy::copy("$backup_dir/config.original",
|
||||
"$list_dir/config")) {
|
||||
warn "[GpgEzmlm] failed to enable the originnal config file (from '"
|
||||
. "$backup_dir/config.original' to '$list_dir/config': $!";
|
||||
return undef;
|
||||
}
|
||||
} else {
|
||||
unless (unlink("$list_dir/config")) {
|
||||
warn "[GpgEzmlm] failed to remove the gpg-ezmlm config file ("
|
||||
. "$list_dir/config): $!";
|
||||
return undef;
|
||||
}
|
||||
}
|
||||
|
||||
return (0==0);
|
||||
}
|
||||
|
||||
|
||||
# where should the dotqmail files and the config file be stored?
|
||||
sub _get_config_backup_dir {
|
||||
my $list_dir = shift;
|
||||
return $list_dir . '/.gpg-ezmlm.backup';
|
||||
}
|
||||
|
||||
|
||||
# == check version of gpg-ezmlm ==
|
||||
sub check_gpg_ezmlm_version {
|
||||
my $ret_value = system("'$GPG_EZMLM_BASE/gpg-ezmlm-convert.pl' --version &>/dev/null");
|
||||
|
|
|
|||
Loading…
Reference in a new issue