make it so monkeysphere-server will respond to --help

[monkeysphere.git] / src / common

diff --git a/src/common b/src/common
index f5bb3bbbf4f0d40b5ebce3229658d9fbce4ec339..396670582b289376423a2f70f490358d978b8b48 100644 (file)
--- a/src/common
+++ b/src/common
@@ -83,6 +83,10 @@ remove_line() {
        return 1
     fi
 
+    if [ ! -e "$file" ] ; then
+       return 1
+    fi
+
     # if the string is in the file...
     if grep -q -F "$string" "$file" 2> /dev/null ; then
        # remove the line with the string, and return 0
@@ -94,6 +98,24 @@ remove_line() {
     fi
 }
 
+# remove all lines with MonkeySphere strings in file
+remove_monkeysphere_lines() {
+    local file
+
+    file="$1"
+
+    if [ -z "$file" ] ; then
+       return 1
+    fi
+
+    if [ ! -e "$file" ] ; then
+       return 1
+    fi
+
+    egrep -v '^MonkeySphere[[:digit:]]{4}(-[[:digit:]]{2}){2}T[[:digit:]]{2}(:[[:digit:]]{2}){2}$' \
+       "$file" | sponge "$file"
+}
+
 # translate ssh-style path variables %h and %u
 translate_ssh_variables() {
     local uname
@@ -533,7 +555,7 @@ update_known_hosts() {
     lockfile-create "$KNOWN_HOSTS"
 
     # note pre update file checksum
-    fileCheck=$(md5sum "$KNOWN_HOSTS")
+    fileCheck="$(cat "$KNOWN_HOSTS" | md5sum)"
 
     for host ; do
        # process the host
@@ -556,7 +578,7 @@ update_known_hosts() {
     lockfile-remove "$KNOWN_HOSTS"
 
     # note if the known_hosts file was updated
-    if [ "$(md5sum "$KNOWN_HOSTS")" != "$fileCheck" ] ; then
+    if [ "$(cat "$KNOWN_HOSTS" | md5sum)" != "$fileCheck" ] ; then
        log "known_hosts file updated."
     fi
 
@@ -671,7 +693,10 @@ update_authorized_keys() {
     lockfile-create "$AUTHORIZED_KEYS"
 
     # note pre update file checksum
-    fileCheck=$(md5sum "$AUTHORIZED_KEYS")
+    fileCheck="$(cat "$AUTHORIZED_KEYS" | md5sum)"
+
+    # remove any monkeysphere lines from authorized_keys file
+    remove_monkeysphere_lines "$AUTHORIZED_KEYS"
 
     for userID ; do
        # process the user ID, change return code if key not found for
@@ -696,7 +721,7 @@ update_authorized_keys() {
     lockfile-remove "$AUTHORIZED_KEYS"
 
     # note if the authorized_keys file was updated
-    if [ "$(md5sum "$AUTHORIZED_KEYS")" != "$fileCheck" ] ; then
+    if [ "$(cat "$AUTHORIZED_KEYS" | md5sum)" != "$fileCheck" ] ; then
        log "authorized_keys file updated."
     fi
 
@@ -742,45 +767,3 @@ process_authorized_user_ids() {
 
     update_authorized_keys "${userIDs[@]}"
 }
-
-# EXPERIMENTAL (unused) process userids found in authorized_keys file
-# go through line-by-line, extract monkeysphere userids from comment
-# fields, and process each userid
-# NOT WORKING
-process_authorized_keys() {
-    local authorizedKeys
-    local userID
-    local returnCode
-
-    # default return code is 0, and is set to 1 if a key for a user
-    # is not found
-    returnCode=0
-
-    authorizedKeys="$1"
-
-    # take all the monkeysphere userids from the authorized_keys file
-    # comment field (third field) that starts with "MonkeySphere uid:"
-    # FIXME: needs to handle authorized_keys options (field 0)
-    meat "$authorizedKeys" | \
-    while read -r options keytype key comment ; do
-       # if the comment field is empty, assume the third field was
-       # the comment
-       if [ -z "$comment" ] ; then
-           comment="$key"
-       fi
-
-       if echo "$comment" | egrep -v -q '^MonkeySphere[[:digit:]]{4}(-[[:digit:]]{2}){2}T[[:digit:]]{2}(:[[:digit:]]{2}){2}' ; then
-           continue
-       fi
-       userID=$(echo "$comment" | awk "{ print $2 }")
-       if [ -z "$userID" ] ; then
-           continue
-       fi
-
-       # process the userid
-       log "processing userid: '$userID'"
-       process_user_id "$userID" > /dev/null || returnCode=1
-    done
-
-    return "$returnCode"
-}