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-rw-r--r--src/share/mh/add_revoker65
1 files changed, 39 insertions, 26 deletions
diff --git a/src/share/mh/add_revoker b/src/share/mh/add_revoker
index 21dc0bb..c6f9a58 100644
--- a/src/share/mh/add_revoker
+++ b/src/share/mh/add_revoker
@@ -25,48 +25,61 @@ local ltsignCommand
local trustval
keyID="$1"
+
+# check that key ID or file is specified
if [ -z "$keyID" ] ; then
failure "You must specify the key ID of a revoker key, or specify a file to read the key from."
fi
-if [ -f "$keyID" ] ; then
- log info "Reading key from file '$keyID':"
- importinfo=$(gpg_host --import < "$keyID" 2>&1) || failure "could not read key from '$keyID'"
- # FIXME: if this is tried when the key database is not
- # up-to-date, i got these errors (using set -x):
-
- # ++ su -m monkeysphere -c '\''gpg --import'\''
- # Warning: using insecure memory!
- # gpg: key D21739E9: public key "Daniel Kahn Gillmor <dkg@fifthhorseman.net>" imported
- # gpg: Total number processed: 1
- # gpg: imported: 1 (RSA: 1)
- # gpg: can'\''t create `/var/monkeysphere/gnupg-host/pubring.gpg.tmp'\'': Permission denied
- # gpg: failed to rebuild keyring cache: Permission denied
- # gpg: 3 marginal(s) needed, 1 complete(s) needed, PGP trust model
- # gpg: depth: 0 valid: 1 signed: 0 trust: 0-, 0q, 0n, 0m, 0f, 1u
- # gpg: next trustdb check due at 2009-01-10'
- # + failure 'could not read key from '\''/root/dkg.gpg'\'''
- # + echo 'could not read key from '\''/root/dkg.gpg'\'''
-
- keyID=$(echo "$importinfo" | grep '^gpg: key ' | cut -f2 -d: | cut -f3 -d\ )
- if [ -z "$keyID" ] || [ $(echo "$keyID" | wc -l) -ne 1 ] ; then
+
+# if file is specified
+if [ -f "$keyID" -o "$keyID" = '-' ] ; then
+ # load the key from stdin
+ if [ "$keyID" = '-' ] ; then
+ local keyID=$(msmktempfile)
+ trap "rm -f $keyID" EXIT
+ log verbose "reading key from stdin..."
+ cat > "$keyID"
+
+ # load the key from the file
+ elif [ -f "$keyID" ] ; then
+ log verbose "reading key from file '$keyID'..."
+ fi
+
+ # check the key is ok as monkeysphere user before loading
+ fingerprint=$(su_monkeysphere_user \
+ ". ${SYSSHAREDIR}/common; list_primary_fingerprints" < "$keyID")
+
+ if [ $(printf "%s" "$fingerprint" | egrep -c '^[A-F0-9]{40}$') -ne 1 ] ; then
failure "There was not exactly one gpg key in the file."
fi
+
+ # load the key
+ gpg_host --import <"$keyID" \
+ || failure "could not read key from '$keyID'"
+
+ keyID="$fingerprint"
+
+# else, get the key from the keyserver
else
# create a temporary directory for storing the downloaded key
- TMPLOC=$(msmktempdir) || failure "Could not create temporary directory!"
+ local TMPLOC=$(msmktempdir)
+ chmod 0700 "$GNUPGHOME"
+ chown "$MONKEYSPHERE_USER":"$MONKEYSPHERE_USER" "$GNUPGHOME"
# download the key from the keyserver as the monkeysphere user
+ log verbose "searching keyserver $KEYSERVER for keyID $keyID..."
su_monkeysphere_user \
- "GNUPGHOME=$TMPLOC gpg --quiet --keyserver $KEYSERVER --recv-key 0x${keyID}!"
+ "GNUPGHOME=$TMPLOC gpg --quiet --keyserver $KEYSERVER --recv-key 0x${keyID}!" \
+ || failure "Could not receive a key with this ID from the '$KEYSERVER' keyserver."
# export the new key to the host keyring
+ log verbose "loading key $keyID..."
su_monkeysphere_user "GNUPGHOME=$TMPLOC gpg --quiet --export 0x${keyID}!" \
| gpg_host --import
fi
-export keyID
-
-# get the full fingerprint of the revoker key ID
+# get the full fingerprint of new revoker key
+log debug "getting fingerprint of revoker key..."
fingerprint=$(gpg_host --list-key --with-colons --with-fingerprint "0x${keyID}!" \
| grep '^fpr:' | grep "$keyID" | cut -d: -f10)