From 638a70f020f4ccda3deb15e5c697d384e0f705d7 Mon Sep 17 00:00:00 2001
From: Jameson Rollins <jrollins@finestructure.net>
Date: Mon, 18 Jan 2010 18:22:22 -0500
Subject: [PATCH] add prompt if a service name is already being used then
 importing a key or adding a name.

This can be overridden with the MONKEYSPHERE_PROMPT var.
---
 src/monkeysphere-host   | 30 +++++++++++++++++++++++++++---
 src/share/mh/add_name   |  3 +++
 src/share/mh/import_key |  3 +--
 3 files changed, 31 insertions(+), 5 deletions(-)

diff --git a/src/monkeysphere-host b/src/monkeysphere-host
index 1fa3aea..4f536e2 100755
--- a/src/monkeysphere-host
+++ b/src/monkeysphere-host
@@ -79,9 +79,14 @@ gpg_host() {
 
 # list the info about the a key, in colon format, to stdout
 gpg_host_list_keys() {
-    gpg_host --list-keys --with-colons --fixed-list-mode \
-	--with-fingerprint --with-fingerprint \
-	"$1"
+    if [ "$1" ] ; then
+	gpg_host --list-keys --with-colons --fixed-list-mode \
+	    --with-fingerprint --with-fingerprint \
+	    "$1"
+    else
+	gpg_host --list-keys --with-colons --fixed-list-mode \
+	    --with-fingerprint --with-fingerprint
+    fi
 }
 
 # edit key scripts, takes scripts on stdin, and keyID as first input
@@ -151,6 +156,25 @@ check_key_userid() {
 	grep -q -x -F "$tmpuidMatch" 2>/dev/null
 }
 
+prompt_userid_exists() {
+    local userID="$1"
+    local gpgOut
+    local fingerprint
+
+    if gpgOut=$(gpg_host_list_keys "=${userID}" 2>/dev/null) ; then
+	fingerprint=$(echo "$gpgOut" | grep '^fpr:' | cut -d: -f10)
+	if [ "$PROMPT" = "true" ] ; then
+	    printf "Service name '%s' is already being used by key '%s'.\nAre you sure you want to use it again? (y/N) " "$fingerprint" "$userID" >&2
+	    read OK; OK=${OK:=N}
+	    if [ "${OK/y/Y}" != 'Y' ] ; then
+		failure "Service name not added."
+	    fi
+	else
+	    log info "Key '%s' is already using the service name '%s'." "$fingerprint" "$userID" >&2
+	fi
+    fi
+}
+
 # run command looped over keys
 multi_key() {
     local cmd="$1"
diff --git a/src/share/mh/add_name b/src/share/mh/add_name
index 0eeefb7..754ced4 100644
--- a/src/share/mh/add_name
+++ b/src/share/mh/add_name
@@ -34,6 +34,9 @@ keyID=$(check_key_input "$@")
 check_key_userid "$keyID" "$serviceName" && \
     failure "Service name '$serviceName' already exists on key '$keyID'."
 
+# test that a key with that user ID does not already exist
+prompt_userid_exists "$serviceName"
+
 check_service_name "$serviceName"
 
 if [ "$PROMPT" = "true" ] ; then
diff --git a/src/share/mh/import_key b/src/share/mh/import_key
index 1b6f267..0f362b8 100644
--- a/src/share/mh/import_key
+++ b/src/share/mh/import_key
@@ -27,8 +27,7 @@ if [ -z "$serviceName" ] ; then
 fi
 
 # test that a key with that user ID does not already exist
-check_key_userid "$serviceName" "$serviceName" && \
-    failure "A key with service name '$serviceName' already exists."
+prompt_userid_exists "$serviceName"
 
 # check that the service name is well formatted
 check_service_name "$serviceName"
-- 
2.26.2