Major rework to remove all caching. Everything processed straight

[monkeysphere.git] / src / monkeysphere-server

diff --git a/src/monkeysphere-server b/src/monkeysphere-server
index 7d1113899c897c605c668a1d3c118a3265099f22..560d249867d780183f9b070ed341c099bf948963 100755 (executable)
--- a/src/monkeysphere-server
+++ b/src/monkeysphere-server
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 # monkeysphere-server: MonkeySphere server admin tool
 #
@@ -32,7 +32,7 @@ MonkeySphere server admin tool.
 
 subcommands:
   update-users (s) [USER]...            update users authorized_keys files
-  gen-key (g)                           generate gpg key for the server
+  gen-key (g) [HOSTNAME]                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 user IDs for a user
@@ -44,14 +44,26 @@ EOF
 
 # generate server gpg key
 gen_key() {
+    local hostName
+
+    hostName=${1:-$(hostname --fqdn)}
+
     # set key defaults
     KEY_TYPE=${KEY_TYPE:-"RSA"}
     KEY_LENGTH=${KEY_LENGTH:-"2048"}
     KEY_USAGE=${KEY_USAGE:-"auth,encrypt"}
-    SERVICE=${SERVICE:-"ssh"}
-    HOSTNAME_FQDN=${HOSTNAME_FQDN:-$(hostname -f)}
+    cat <<EOF
+Please specify how long the key should be valid.
+         0 = key does not expire
+      <n>  = key expires in n days
+      <n>w = key expires in n weeks
+      <n>m = key expires in n months
+      <n>y = key expires in n years
+EOF
+    read -p "Key is valid for? ($EXPIRE) " EXPIRE; EXPIRE=${EXPIRE:-"0"}
 
-    USERID=${USERID:-"$SERVICE"://"$HOSTNAME_FQDN"}
+    SERVICE=${SERVICE:-"ssh"}
+    USERID=${USERID:-"$SERVICE"://"$hostName"}
 
     # set key parameters
     keyParameters=$(cat <<EOF
@@ -59,6 +71,7 @@ Key-Type: $KEY_TYPE
 Key-Length: $KEY_LENGTH
 Key-Usage: $KEY_USAGE
 Name-Real: $USERID
+Expire-Date: $EXPIRE
 EOF
 )
 
@@ -91,8 +104,9 @@ EOF
 EOF
 )
 
-    log "generating server key..."
+    log -n "generating server key... "
     echo "$keyParameters" | gpg --batch --gen-key
+    loge "done."
 }
 
 ########################################################################
@@ -111,22 +125,27 @@ MS_CONF=${MS_CONF:-"$MS_HOME"/monkeysphere-server.conf}
 [ -e "$MS_CONF" ] && . "$MS_CONF"
 
 # set empty config variable with defaults
-GNUPGHOME=${GNUPGHOME:-"$MS_HOME"/gnupg}
-KEYSERVER=${KEYSERVER:-subkeys.pgp.net}
+GNUPGHOME=${GNUPGHOME:-"${MS_HOME}/gnupg"}
+KEYSERVER=${KEYSERVER:-"subkeys.pgp.net"}
+CHECK_KEYSERVER=${CHECK_KEYSERVER:="true"}
 REQUIRED_USER_KEY_CAPABILITY=${REQUIRED_USER_KEY_CAPABILITY:-"a"}
-USER_CONTROLLED_AUTHORIZED_KEYS=${USER_CONTROLLED_AUTHORIZED_KEYS:-%h/.ssh/authorized_keys}
+USER_CONTROLLED_AUTHORIZED_KEYS=${USER_CONTROLLED_AUTHORIZED_KEYS:-"%h/.ssh/authorized_keys"}
 
 export GNUPGHOME
 
+# make sure the monkeysphere home directory exists
+mkdir -p "${MS_HOME}/authorized_user_ids"
 # make sure gpg home exists with proper permissions
 mkdir -p -m 0700 "$GNUPGHOME"
+# make sure the authorized_keys directory exists
+mkdir -p "${CACHE}/authorized_keys"
 
 case $COMMAND in
     'update-users'|'update-user'|'s')
        if [ "$1" ] ; then
            unames="$@"
        else
-           unames=$(ls -1 "$MS_HOME"/authorized_user_ids)
+           unames=$(ls -1 "${MS_HOME}/authorized_user_ids")
        fi
 
        for uname in $unames ; do
@@ -135,12 +154,14 @@ case $COMMAND in
            log "----- user: $uname -----"
 
            # set variables for the user
-           AUTHORIZED_USER_IDS="$MS_HOME"/authorized_user_ids/"$uname"
-           msAuthorizedKeys="$CACHE"/"$uname"/authorized_keys
-           cacheDir="$CACHE"/"$uname"/user_keys
+           AUTHORIZED_USER_IDS="${MS_HOME}/authorized_user_ids/${uname}"
+           # temporary authorized_keys file
+           AUTHORIZED_KEYS="${CACHE}/authorized_keys/${uname}.tmp"
 
             # make sure user's authorized_user_ids file exists
            touch "$AUTHORIZED_USER_IDS"
+           # make sure the authorized_keys file exists and is clear
+           > "$AUTHORIZED_KEYS"
 
            # skip if the user's authorized_user_ids file is empty
            if [ ! -s "$AUTHORIZED_USER_IDS" ] ; then
@@ -148,21 +169,30 @@ case $COMMAND in
                continue
            fi
 
-           # set user-controlled authorized_keys file path
-           if [ "$USER_CONTROLLED_AUTHORIZED_KEYS" ] ; then
+           # process authorized_user_ids file
+           log "processing authorized_user_ids file..."
+           process_authorized_user_ids
+
+           # add user-controlled authorized_keys file path if specified
+           if [ "$USER_CONTROLLED_AUTHORIZED_KEYS" != '-' ] ; then
                userHome=$(getent passwd "$uname" | cut -d: -f6)
                userAuthorizedKeys=${USER_CONTROLLED_AUTHORIZED_KEYS/\%h/"$userHome"}
+               log -n "adding user's authorized_keys file... "
+               cat "$userAuthorizedKeys" >> "$AUTHORIZED_KEYS"
+               loge "done."
            fi
 
-           # update authorized_keys
-           update_authorized_keys "$msAuthorizedKeys" "$userAuthorizedKeys" "$cacheDir"
+           # move the temp authorized_keys file into place
+           mv -f "${CACHE}/authorized_keys/${uname}.tmp" "${CACHE}/authorized_keys/${uname}"
+
+           log "authorized_keys file updated."
        done
 
        log "----- done. -----"
        ;;
 
     'gen-key'|'g')
-       gen_key
+       gen_key "$1"
        ;;
 
     'publish-key'|'p')
@@ -171,7 +201,7 @@ case $COMMAND in
 
     'trust-keys'|'trust-key'|'t')
        if [ -z "$1" ] ; then
-           failure "you must specify at least one key to trust."
+           failure "You must specify at least one key to trust."
        fi
 
        # process key IDs
@@ -184,25 +214,24 @@ case $COMMAND in
        uname="$1"
        shift
        if [ -z "$uname" ] ; then
-           failure "you must specify user."
+           failure "You must specify user."
        fi
        if [ -z "$1" ] ; then
-           failure "you must specify at least one userid."
+           failure "You must specify at least one user ID."
        fi
 
        # set variables for the user
        AUTHORIZED_USER_IDS="$MS_HOME"/authorized_user_ids/"$uname"
-       cacheDir="$CACHE"/"$uname"/user_keys
 
         # make sure user's authorized_user_ids file exists
        touch "$AUTHORIZED_USER_IDS"
 
        # process the user IDs
        for userID ; do
-           update_userid "$userID" "$cacheDir"
+           update_userid "$userID"
        done
 
-       log "run the following to update user's authorized_keys file:"
+       log "Run the following to update user's authorized_keys file:"
        log "$PGRM update-users $uname"
        ;;
 
@@ -210,10 +239,10 @@ case $COMMAND in
        uname="$1"
        shift
        if [ -z "$uname" ] ; then
-           failure "you must specify user."
+           failure "You must specify user."
        fi
        if [ -z "$1" ] ; then
-           failure "you must specify at least one userid."
+           failure "You must specify at least one user ID."
        fi
 
        # set variables for the user
@@ -227,7 +256,7 @@ case $COMMAND in
            remove_userid "$userID"
        done
 
-       log "run the following to update user's authorized_keys file:"
+       log "Run the following to update user's authorized_keys file:"
        log "$PGRM update-users $uname"
        ;;