+##
+# Check the local user keys.
+#
+# This function checks if the keyids defined through the --local-user
+# command line option or set in ~/.caffrc are valid and known to be one of the
+# keyids listed in ~/.caffrc.
+#
+# @return an array containing the local user keys\n
+# (undef) if no valid key has been found
+#
+sub get_local_user_keys() {
+ my @local_user = ();
+ my @key_list;
+
+ # No user-defined key id has been specified by the user, no need for
+ # further checks
+ if (!$CONFIG{'local-user'}) {
+ return (undef);
+ }
+
+ # Parse the list of keys
+ if (ref($CONFIG{'local-user'})) {
+ @key_list = @{$CONFIG{'local-user'}};
+ }
+ else {
+ @key_list = split /\s*,\s*/, $CONFIG{'local-user'};
+ }
+
+ # Check every key defined by the user...
+ for my $user_key (@key_list) {
+
+ $user_key =~ s/^0x//i;
+ $user_key = uc($user_key);
+
+ unless ($user_key =~ m/^([A-F0-9]{8}|[A-F0-9]{16}|[A-F0-9]{40})$/) {
+ mywarn "Local-user $user_key is not a valid keyid.";
+ next;
+ }
+
+ unless (grep (/$user_key$/, @{$CONFIG{'keyid'}})) {
+ mywarn "Local-user $user_key is not defined as one of your keyid in ~/.caffrc (it will not be used).";
+ next;
+ }
+
+ push (@local_user, $user_key);
+ }
+
+ # If no local-user key are valid, there is no need to go further
+ unless (defined $local_user[0]) {
+ myerror (1, "None of the local-user keys seem to be known as a keyid listed in ~/.caffrc.");
+ }
+
+ return @local_user;
+}
+
+##
+# Import a key from the user gnupghome into a specified gnupghome.
+#
+# @param asciikey ascii format of the gpg key to import
+# @param dst_gnupghome gnupghome directory where to import the key
+#
+# @return 0 if successful\n
+# 1 if the key could not be exported.\n
+# 2 if the key could not be imported.
+#
+sub import_key_from_user_gnupghome() {
+ my $err;
+ my ($asciikey, $dst_gpghome) = @_;
+
+ trace("Exporting key $asciikey from your normal GnuPGHOME.");
+ my $key = export_key(undef, $asciikey);
+ if (defined $key && $key ne '') {
+ trace("Importing key $asciikey into $GNUPGHOME.");
+ if (import_key($GNUPGHOME, $key)) {
+ $err = 0;
+ } else {
+ warn("Could not import $asciikey into caff's gnupghome.");
+ $err = 2;
+ }
+ } else {
+ $err = 1;
+ }
+
+ return $err;
+}
+
+##
+# Import a key file into a specified gnupghome.
+#
+# @param keyfile file containing the keys to import
+# @param dst_gnupghome gnupghome directory where to import the key
+#
+# @return 0 if successful\n
+# 1 if an error occured.
+#
+sub import_key_files() {
+ my $err;
+ my ($keyfile, $dst_gpghome) = @_;
+
+ my $gpg = GnuPG::Interface->new();
+ $gpg->call( $CONFIG{'gpg'} );
+ $gpg->options->hash_init(
+ 'homedir' => $dst_gpghome,
+ 'extra_args' => [ qw{ --no-auto-check-trustdb --trust-model=always } ] );
+ $gpg->options->meta_interactive( 0 );
+ my ($inputfd, $stdoutfd, $stderrfd, $statusfd, $handles) = make_gpg_fds();
+ my $pid = $gpg->import_keys(handles => $handles, command_args => $keyfile);
+ my ($stdout, $stderr, $status) = readwrite_gpg('', $inputfd, $stdoutfd, $stderrfd, $statusfd);
+ info("Importing keys from file $keyfile");
+ waitpid $pid, 0;
+
+ if ($status !~ /^\[GNUPG:\] IMPORT_OK/m) {
+ warn $stderr;
+ $err = 1;
+ } else {
+ $err = 0;
+ }
+
+ return $err;
+}
+
+##
+# Import keys to be signed into caff gnupghome directory.
+#
+# This function imports the keys the user wants to sign into the caff gnupghome
+# directory. We looks for the keys in the the user gnupghome directory first,
+# and in the key files specified by the user if not all of the keys have been
+# found.
+#
+sub import_keys_to_sign() {
+ # Check if we can find the gpg key from our normal gnupghome, and then
+ # try to import it into our working gnupghome directory
+ my $imported_keys = 0;
+ foreach my $keyid (@KEYIDS) {
+ if (!&import_key_from_user_gnupghome($keyid, $GNUPGHOME)) {
+ info("Key $keyid imported from your normal GnuPGHOME.");
+ $imported_keys++;
+ }
+ }
+
+ # If all of the keys have been successfully imported, there is no need to
+ # go further
+ return 1 if ($imported_keys == scalar (@KEYIDS));
+
+ # Import user specified key files
+ foreach my $keyfile (@{$CONFIG{'key-files'}}) {
+ &import_key_files($keyfile, $GNUPGHOME);
+ }
+
+ return 0;
+}
projects / pgp-tools.git / blobdiff