Add new keys-from-userid subcommand to monkeysphere UI.

[monkeysphere.git] / src / monkeysphere

diff --git a/src/monkeysphere b/src/monkeysphere
index 6db4827c15a5ea8fc9248cf2a4c1e0f9e6cd5d79..0726ff94a61fdd492f6475978fec41bee711ba80 100755 (executable)
--- a/src/monkeysphere
+++ b/src/monkeysphere
@@ -18,7 +18,8 @@ PGRM=$(basename $0)
 
 SYSSHAREDIR=${MONKEYSPHERE_SYSSHAREDIR:-"/usr/share/monkeysphere"}
 export SYSSHAREDIR
-. "${SYSSHAREDIR}/common" || exit 1
+. "${SYSSHAREDIR}/defaultenv"
+. "${SYSSHAREDIR}/common"
 
 # sharedir for host functions
 MSHAREDIR="${SYSSHAREDIR}/m"
@@ -44,10 +45,15 @@ Monkeysphere client tool.
 subcommands:
  update-known_hosts (k) [HOST]...    update known_hosts file
  update-authorized_keys (a)          update authorized_keys file
+ ssh-proxycommand HOST [PORT]        monkeysphere ssh ProxyCommand
+   --no-connect                        do not make TCP connection to host
+ subkey-to-ssh-agent (s)             store authentication subkey in ssh-agent
+ sshfpr (f) KEYID                    output ssh fingerprint of gpg key
+
+ keys-from-userid (u) USERID         output valid keys for user id literal
  gen-subkey (g) [KEYID]              generate an authentication subkey
    --length (-l) BITS                  key length in bits (2048)
- ssh-proxycommand                    monkeysphere ssh ProxyCommand
- subkey-to-ssh-agent (s)             store authentication subkey in ssh-agent
+
  version (v)                         show version number
  help (h,?)                          this help
 
@@ -59,6 +65,23 @@ gpg_user() {
     gpg --no-greeting --quiet --no-tty "$@"
 }
 
+# output the ssh fingerprint of a gpg key
+gpg_ssh_fingerprint() {
+    keyid="$1"
+    local tmpfile=$(mktemp)
+
+    # trap to remove tmp file if break
+    trap "rm -f $tmpfile" EXIT
+
+    # use temporary file, since ssh-keygen won't accept keys on stdin
+    gpg_user --export "$keyid" | openpgp2ssh "$keyid" >"$tmpfile"
+    ssh-keygen -l -f "$tmpfile" | awk '{ print $1, $2, $4 }'
+
+    # remove the tmp file
+    trap - EXIT
+    rm -rf "$tmpfile"
+}
+
 # take a secret key ID and check that only zero or one ID is provided,
 # and that it corresponds to only a single secret key ID
 check_gpg_sec_key_id() {
@@ -69,7 +92,7 @@ check_gpg_sec_key_id() {
            gpgSecOut=$(gpg_user --fixed-list-mode --list-secret-keys --with-colons 2>/dev/null | egrep '^sec:')
            ;;
        1)
-           gpgSecOut=$(gpg_user --fixed-list-mode --list-secret-keys --with-colons "$keyID" | egrep '^sec:') || failure
+           gpgSecOut=$(gpg_user --fixed-list-mode --list-secret-keys --with-colons "$1" | egrep '^sec:') || failure
            ;;
        *)
            failure "You must specify only a single primary key ID."
@@ -86,10 +109,10 @@ check_gpg_sec_key_id() {
            echo "$gpgSecOut" | cut -d: -f5
            ;;
        *)
-           echo "Multiple primary secret keys found:"
-           echo "$gpgSecOut" | cut -d: -f5
-           echo "Please specify which primary key to use."
-           failure
+           local seckeys=$(echo "$gpgSecOut" | cut -d: -f5)
+           failure "Multiple primary secret keys found:
+$seckeys
+Please specify which primary key to use."
            ;;
     esac
 }
@@ -124,7 +147,8 @@ check_gpg_authentication_subkey() {
        if [ "$validity" = 'u' ] ; then
            echo "A valid authentication key already exists for primary key '$keyID'." 1>&2
            if [ "$PROMPT" = "true" ] ; then
-               read -p "Are you sure you would like to generate another one? (y/N) " OK; OK=${OK:N}
+               printf "Are you sure you would like to generate another one? (y/N) " >&2
+               read OK; OK=${OK:N}
                if [ "${OK/y/Y}" != 'Y' ] ; then
                    failure "aborting."
                fi
@@ -176,17 +200,22 @@ PROMPT=${MONKEYSPHERE_PROMPT:=$PROMPT}
 KNOWN_HOSTS=${MONKEYSPHERE_KNOWN_HOSTS:=$KNOWN_HOSTS}
 HASH_KNOWN_HOSTS=${MONKEYSPHERE_HASH_KNOWN_HOSTS:=$HASH_KNOWN_HOSTS}
 AUTHORIZED_KEYS=${MONKEYSPHERE_AUTHORIZED_KEYS:=$AUTHORIZED_KEYS}
+STRICT_MODES=${MONKEYSPHERE_STRICT_MODES:=$STRICT_MODES}
 
 # other variables not in config file
 AUTHORIZED_USER_IDS=${MONKEYSPHERE_AUTHORIZED_USER_IDS:="${MONKEYSPHERE_HOME}/authorized_user_ids"}
 REQUIRED_HOST_KEY_CAPABILITY=${MONKEYSPHERE_REQUIRED_HOST_KEY_CAPABILITY:="a"}
 REQUIRED_USER_KEY_CAPABILITY=${MONKEYSPHERE_REQUIRED_USER_KEY_CAPABILITY:="a"}
+# note that only using '=' instead of ':=' tests only if the variable
+# in unset, not if it's "null"
+LOG_PREFIX=${MONKEYSPHERE_LOG_PREFIX='ms: '}
 
 # export GNUPGHOME and make sure gpg home exists with proper
 # permissions
 export GNUPGHOME
 mkdir -p -m 0700 "$GNUPGHOME"
 export LOG_LEVEL
+export LOG_PREFIX
 
 # get subcommand
 COMMAND="$1"
@@ -238,6 +267,14 @@ case $COMMAND in
        subkey_to_ssh_agent "$@"
        ;;
 
+    'sshfpr'|'f')
+       gpg_ssh_fingerprint "$@"
+       ;;
+
+    'keys-from-userid'|'u')
+       keys_from_userid "$@"
+       ;;
+
     'version'|'v')
        version
        ;;