Allow for passing CHECK_KEYSERVER variable to proxycommand

[monkeysphere.git] / src / monkeysphere-ssh-proxycommand

diff --git a/src/monkeysphere-ssh-proxycommand b/src/monkeysphere-ssh-proxycommand
index 3887e4897d10eca20c7234761ae3e1451238c68c..30d511a19ebab2b47fe5159eb6e35410bfd7d249 100755 (executable)
--- a/src/monkeysphere-ssh-proxycommand
+++ b/src/monkeysphere-ssh-proxycommand
@@ -13,9 +13,6 @@
 # established.  Can be added to ~/.ssh/config as follows:
 #  ProxyCommand monkeysphere-ssh-proxycommand %h %p
 
-HOST="$1"
-PORT="$2"
-
 usage() {
 cat <<EOF >&2
 usage: ssh -o ProxyCommand="$(basename $0) %h %p" ...
@@ -26,29 +23,60 @@ log() {
     echo "$@" >&2
 }
 
+if [ "$1" = '--no-connect' ] ; then
+    NO_CONNECT='true'
+    shift 1
+fi
+
+HOST="$1"
+PORT="$2"
+
+MS_HOME=${MS_HOME:-"${HOME}/.config/monkeysphere"}
+
 if [ -z "$HOST" ] ; then
     log "host must be specified."
     usage
     exit 1
 fi
 if [ -z "$PORT" ] ; then
-    log "port must be specified."
-    usage
-    exit 1
+    PORT=22
 fi
 
-# check for the host key in the known_hosts file
-hostKey=$(ssh-keygen -F "$HOST")
+# set the host URI
+URI="ssh://${HOST}"
+if [ "$PORT" != '22' ] ; then
+    URI="${URI}:${PORT}"
+fi
 
-# if the host key is found in the known_hosts file,
-# don't check the keyserver
-if [ "$hostKey" ] ; then
-    CHECK_KEYSERVER="false"
+# if the host is in the gpg keyring...
+if gpg --list-key ="${URI}" 2>&1 >/dev/null ; then
+    # do not check the keyserver
+    CHECK_KEYSERVER=${CHECK_KEYSERVER:-"false"}
+
+# if the host is NOT in the keyring...
+else
+    # if the host key is found in the known_hosts file...
+    # FIXME: this only works for default known_hosts location
+    hostKey=$(ssh-keygen -F "$HOST")
+    if [ "$hostKey" ] ; then
+       # do not check the keyserver
+       # FIXME: more nuanced checking should be done here to properly
+       # take into consideration hosts that join monkeysphere by
+       # converting an existing and known ssh key
+       CHECK_KEYSERVER=${CHECK_KEYSERVER:-"false"}
+
+    # if the host key is not found in the known_hosts file...
+    else
+       # check the keyserver
+       CHECK_KEYSERVER=${CHECK_KEYSERVER:-"true"}
+    fi
 fi
 export CHECK_KEYSERVER
 
 # update the known_hosts file for the host
-monkeysphere update-known-hosts "$HOST"
+monkeysphere update-known_hosts "$HOST"
 
 # exec a netcat passthrough to host for the ssh connection
-exec nc "$HOST" "$PORT"
+if [ -z "$NO_CONNECT" ] ; then
+    exec nc "$HOST" "$PORT"
+fi