From: Jameson Graef Rollins <jrollins@phys.columbia.edu>
Date: Wed, 11 Jun 2008 02:25:32 +0000 (-0400)
Subject: More cleanup of scripts
X-Git-Tag: monkeysphere_0.1-1~59
X-Git-Url: https://codewiz.org/gitweb?a=commitdiff_plain;h=6a278713cc9fd475acae6bb131a44fc9b26ddac6;hp=be186e427ac34812e2b2a55489ae55fe2341f6a0;p=monkeysphere.git

More cleanup of scripts
- fixed bug in gpg2ssh_tmp call
- broke out update_authorized_keys function
- cleaned up gen_key function for server
  - added possible "Revoker:" parameter we might use
- started gen_ae_subkey function that for some reason isn't working
  yet.
---

diff --git a/src/common b/src/common
index 073b8af..ff6ba59 100755
--- a/src/common
+++ b/src/common
@@ -88,11 +88,11 @@ gpg2ssh_tmp() {
     local userID
     local host
 
-    keyID="$2"
-    userID="$3"
+    keyID="$1"
+    userID="$2"
 
-    if [ "$mode" = 'authorized_keys' ] ; then
-	gpgkey2ssh "$keyID" | sed -e "s/COMMENT/${userID}/"
+    if [ "$MODE" = 'authorized_keys' ] ; then
+	gpgkey2ssh "$keyID" | sed -e "s/COMMENT/MonkeySphere userID: ${userID}/"
 
     # NOTE: it seems that ssh-keygen -R removes all comment fields from
     # all lines in the known_hosts file.  why?
@@ -294,10 +294,65 @@ process_known_hosts() {
     done
 }
 
-# process authorized_keys file
+# update an authorized_keys file after first processing the 
+# authorized_user_ids file
+update_authorized_keys() {
+    local cacheDir
+    local msAuthorizedKeys
+    local userAuthorizedKeys
+
+    cacheDir="$1"
+    msAuthorizedKeys="$2"
+    userAuthorizedKeys="$3"
+
+    process_authorized_ids "$AUTHORIZED_USER_IDS" "$cacheDir"
+
+    # write output key file
+    log "writing monkeysphere authorized_keys file... "
+    touch "$msAuthorizedKeys"
+    if [ "$(ls "$cacheDir")" ] ; then
+	log -n "adding gpg keys... "
+	cat "$cacheDir"/* > "$msAuthorizedKeys"
+	echo "done."
+    else
+	log "no gpg keys to add."
+    fi
+    if [ "$userAuthorizedKeys" -a -s "$userAuthorizedKeys" ] ; then
+	log -n "adding user authorized_keys file... "
+	cat "$userAuthorizedKeys" >> "$msAuthorizedKeys"
+	echo "done."
+    fi
+    log "monkeysphere authorized_keys file generated: $msAuthorizedKeys"
+}
+
+# process an authorized_*_ids file
+# go through line-by-line, extract each userid, and process
+process_authorized_ids() {
+    local authorizedIDs
+    local cacheDir
+    local userID
+
+    authorizedIDs="$1"
+    cacheDir="$2"
+
+    # clean out keys file and remake keys directory
+    rm -rf "$cacheDir"
+    mkdir -p "$cacheDir"
+
+    # loop through all user ids in file
+    # FIXME: needs to handle authorized_keys options
+    cat "$authorizedIDs" | meat | \
+    while read -r userID ; do
+	# process the userid
+	log "processing userid: '$userID'"
+	process_user_id "$userID" "$cacheDir" > /dev/null
+    done
+}
+
+# EXPERIMENTAL (unused) process userids found in authorized_keys file
 # go through line-by-line, extract monkeysphere userids from comment
 # fields, and process each userid
-process_authorized_keys() {
+process_userids_from_authorized_keys() {
     local authorizedKeys
     local cacheDir
     local userID
@@ -328,30 +383,6 @@ process_authorized_keys() {
     done
 }
 
-# process an authorized_*_ids file
-# go through line-by-line, extract each userid, and process
-process_authorized_ids() {
-    local authorizedIDs
-    local cacheDir
-    local userID
-
-    authorizedIDs="$1"
-    cacheDir="$2"
-
-    # clean out keys file and remake keys directory
-    rm -rf "$cacheDir"
-    mkdir -p "$cacheDir"
-
-    # loop through all user ids in file
-    # FIXME: needs to handle authorized_keys options
-    cat "$authorizedIDs" | meat | \
-    while read -r userID ; do
-	# process the userid
-	log "processing userid: '$userID'"
-	process_user_id "$userID" "$cacheDir" > /dev/null
-    done
-}
-
 # update the cache for userid, and prompt to add file to
 # authorized_user_ids file if the userid is found in gpg
 # and not already in file.
diff --git a/src/monkeysphere b/src/monkeysphere
index d652ab3..c417625 100755
--- a/src/monkeysphere
+++ b/src/monkeysphere
@@ -34,15 +34,70 @@ usage: $PGRM <subcommand> [args]
 Monkeysphere client tool.
 
 subcommands:
-  update-known-hosts (k) [HOST]...  update known_hosts file
-  update-authorized-keys (a)        update authorized_keys file
+  update-known_hosts (k) [HOST]...  update known_hosts file
+  update-authorized_keys (a)        update authorized_keys file
   update-userids (u) [USERID]...    add/update userid
-  gen-ae-subkey (g)                 generate an 'ae' capable subkey
+  gen-ae-subkey (g) KEYID           generate an 'ae' capable subkey
   help (h,?)                        this help
 
 EOF
 }
 
+# generate a subkey with the 'a' and 'e' usage flags set
+gen_ae_subkey(){
+    local keyID
+    local gpgOut
+    local userID
+
+    log "warning: this function is still not working."
+
+    keyID="$1"
+
+    # set subkey defaults
+    SUBKEY_TYPE=${KEY_TYPE:-RSA}
+    SUBKEY_LENGTH=${KEY_LENGTH:-1024}
+    SUBKEY_USAGE=${KEY_USAGE:-encrypt,auth}
+
+    gpgOut=$(gpg --fixed-list-mode --list-keys --with-colons \
+	"$keyID" 2> /dev/null)
+
+    # return 1 if there only "tru" lines are output from gpg
+    if [ -z "$(echo "$gpgOut" | grep -v '^tru:')" ] ; then
+	loge "  key not found."
+	return 1
+    fi
+
+    userID=$(echo "$gpgOut" | grep "^uid:" | cut -d: -f10)
+
+    # set key parameters
+    keyParameters=$(cat <<EOF
+Subkey-Type: $SUBKEY_TYPE
+Subkey-Length: $SUBKEY_LENGTH
+Subkey-Usage: $SUBKEY_USAGE
+Name-Real: $userID
+EOF
+)
+
+    log "The following key parameters will be used:"
+    echo "$keyParameters"
+
+    read -p "generate key? [Y|n]: " OK; OK=${OK:=Y}
+    if [ ${OK/y/Y} != 'Y' ] ; then
+	failure "aborting."
+    fi
+
+    # add commit command
+    keyParameters="${keyParameters}"$(cat <<EOF
+
+%commit
+%echo done
+EOF
+)
+
+    echo "generating subkey..."
+    echo "$keyParameters" | gpg --batch --gen-key
+}
+
 ########################################################################
 # MAIN
 ########################################################################
@@ -78,7 +133,7 @@ msAuthorizedKeys="$MS_HOME"/authorized_keys
 mkdir -p -m 0700 "$GNUPGHOME"
 
 case $COMMAND in
-    'update-known-hosts'|'k')
+    'update-known_hosts'|'update-known-hosts'|'k')
 	MODE='known_hosts'
 
         # touch the known_hosts file to make sure it exists
@@ -102,39 +157,20 @@ case $COMMAND in
 	fi
 	;;
 
-    'update-authorized-keys'|'a')
+    'update-authorized_keys'|'update-authorized-keys'|'a')
 	MODE='authorized_keys'
 
-	log "processing authorized_user_ids file..."
-
         # make sure authorized_user_ids file exists
 	if [ ! -s "$AUTHORIZED_USER_IDS" ] ; then
 	    log "authorized_user_ids file is empty or does not exist."
 	    exit
 	fi
 
-	process_authorized_ids "$AUTHORIZED_USER_IDS" "$userKeysCacheDir"
+	# set user-controlled authorized_keys file path
+	userAuthorizedKeys=${USER_CONTROLLED_AUTHORIZED_KEYS/\%h/"$HOME"}
 
-        # write output key file
-	log "writing monkeysphere authorized_keys file... "
-	touch "$msAuthorizedKeys"
-	if [ "$(ls "$userKeysCacheDir")" ] ; then
-	    log -n "adding gpg keys... "
-	    cat "$userKeysCacheDir"/* > "$msAuthorizedKeys"
-	    echo "done."
-	else
-	log "no gpg keys to add."
-	fi
-	if [ "$USER_CONTROLLED_AUTHORIZED_KEYS" ] ; then
-	    userAuthorizedKeys=${USER_CONTROLLED_AUTHORIZED_KEYS/\%h/"$HOME"}
-	    if [ -s "$userAuthorizedKeys" ] ; then
-		log -n "adding user authorized_keys file... "
-		cat "$userAuthorizedKeys" >> "$msAuthorizedKeys"
-		echo "done."
-	    fi
-	fi
-	log "monkeysphere authorized_keys file generated:"
-	log "$msAuthorizedKeys"
+	# update authorized_keys
+	update_authorized_keys "$userKeysCacheDir" "$msAuthorizedKeys" "$userAuthorizedKeys"
 	;;
 
     'update-userids'|'u')
@@ -146,8 +182,12 @@ case $COMMAND in
 	done
 	;;
 
-    'gen-ae-subkey'|)
-	failure "function not implemented yet."
+    'gen-ae-subkey'|'g')
+	keyID="$1"
+	if [ -z "$keyID" ] ; then
+	    failure "you must specify keyid of primary key."
+	fi
+	gen_ae_subkey "$keyID"
 	;;
 
     'help'|'h'|'?')
diff --git a/src/monkeysphere-server b/src/monkeysphere-server
index fd7b583..6eeb702 100755
--- a/src/monkeysphere-server
+++ b/src/monkeysphere-server
@@ -31,18 +31,19 @@ usage: $PGRM <subcommand> [args]
 Monkeysphere server admin tool.
 
 subcommands:
-  update-users (s) [USER]...                 update user authorized_keys file
-  gen-key (g)                                generate gpg key for the server
-  publish-key (p)                            publish server gpg to keyserver
-  trust-key (t) KEYID [KEYID]...             mark keyid as trusted
-  update-user-userids (u) USER UID [UID]...  add/update userid for user
-  help (h,?)                                 this help
+  update-users (s) [USER]...            update users authorized_keys files
+  gen-key (g)                           generate gpg key for the server
+  publish-key (p)                       publish server key to keyserver
+  trust-keys (t) KEYID...               mark keyids as trusted
+  update-user-userids (u) USER UID...   add/update userids for a user
+  help (h,?)                            this help
 
 EOF
 }
 
 # generate server gpg key
 gen_key() {
+    # set key defaults
     KEY_TYPE=${KEY_TYPE:-RSA}
     KEY_LENGTH=${KEY_LENGTH:-2048}
     KEY_USAGE=${KEY_USAGE:-encrypt,auth}
@@ -51,13 +52,26 @@ gen_key() {
 
     USERID=${USERID:-"$SERVICE"://"$HOSTNAME_FQDN"}
 
-    echo "key parameters:"
-    cat <<EOF
+    # set key parameters
+    keyParameters=$(cat <<EOF
 Key-Type: $KEY_TYPE
 Key-Length: $KEY_LENGTH
 Key-Usage: $KEY_USAGE
 Name-Real: $USERID
 EOF
+)
+
+    # add the revoker field if requested
+    if [ "$REVOKER" ] ; then
+	keyParameters="${keyParameters}"$(cat <<EOF
+
+Revoker: 1:$REVOKER sensitive
+EOF
+)
+    fi
+
+    log "The following key parameters will be used:"
+    echo "$keyParameters"
 
     read -p "generate key? [Y|n]: " OK; OK=${OK:=Y}
     if [ ${OK/y/Y} != 'Y' ] ; then
@@ -68,14 +82,16 @@ EOF
 	failure "key for '$USERID' already exists"
     fi
 
-    echo "generating server key..."
-    gpg --batch --gen-key <<EOF
-Key-Type: $KEY_TYPE
-Key-Length: $KEY_LENGTH
-Key-Usage: $KEY_USAGE
-Name-Real: $USERID
+    # add commit command
+    keyParameters="${keyParameters}"$(cat <<EOF
+
 %commit
+%echo done
 EOF
+)
+
+    echo "generating server key..."
+    echo "$keyParameters" | gpg --batch --gen-key
 }
 
 # publish server key to keyserver
@@ -90,7 +106,7 @@ publish_key() {
     # dummy command so as not to publish fakes keys during testing
     # eventually:
     #gpg --send-keys --keyserver "$KEYSERVER" "$keyID"
-    echo "gpg --send-keys --keyserver $KEYSERVER $keyID"
+    echo "NOT PUBLISHED: gpg --send-keys --keyserver $KEYSERVER $keyID"
 }
 
 ########################################################################
@@ -129,43 +145,29 @@ case $COMMAND in
 	fi
 
 	for uname in $unames ; do
+	    log "----- user: $uname -----"
+
 	    MODE="authorized_keys"
-	    authorizedUserIDs="$MS_HOME"/authorized_user_ids/"$uname"
+	    AUTHORIZED_USER_IDS="$MS_HOME"/authorized_user_ids/"$uname"
 	    cacheDir="$STAGING_AREA"/"$uname"/user_keys
 	    msAuthorizedKeys="$STAGING_AREA"/"$uname"/authorized_keys
 
             # make sure authorized_user_ids file exists
-	    if [ ! -s "$authorizedUserIDs" ] ; then
+	    if [ ! -s "$AUTHORIZED_USER_IDS" ] ; then
 		log "authorized_user_ids file for '$uname' is empty or does not exist."
 		continue
 	    fi
 
-	    log "processing authorized_keys for user '$uname'..."
-
-	    process_authorized_ids "$authorizedUserIDs" "$cacheDir"
-
-            # write output key file
-	    log "writing monkeysphere authorized_keys file... "
-	    touch "$msAuthorizedKeys"
-	    if [ "$(ls "$cacheDir")" ] ; then
-		log -n "adding gpg keys... "
-		cat "$cacheDir"/* > "$msAuthorizedKeys"
-		echo "done."
-	    else
-		log "no gpg keys to add."
-	    fi
+	    # set user-controlled authorized_keys file path
 	    if [ "$USER_CONTROLLED_AUTHORIZED_KEYS" ] ; then
 		userHome=$(getent passwd "$uname" | cut -d: -f6)
 		userAuthorizedKeys=${USER_CONTROLLED_AUTHORIZED_KEYS/\%h/"$userHome"}
-		if [ -s "$userAuthorizedKeys" ] ; then
-		    log -n "adding user authorized_keys file... "
-		    cat "$userAuthorizedKeys" >> "$msAuthorizedKeys"
-		    echo "done."
-		fi
 	    fi
-	    log "monkeysphere authorized_keys file generated:"
-	    log "$msAuthorizedKeys"
+
+	    # update authorized_keys
+	    update_authorized_keys "$cacheDir" "$msAuthorizedKeys" "$userAuthorizedKeys"
 	done
+	log "----- done. -----"
 	;;
 
     'gen-key'|'g')
@@ -176,7 +178,7 @@ case $COMMAND in
 	publish_key
 	;;
 
-    'trust-key'|'t')
+    'trust-keys'|'t')
 	if [ -z "$1" ] ; then
 	    failure "you must specify at least one key to trust."
 	fi