From 72f3e6acde61d73dc2ca7a96c0d59716cc3c1d48 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Wed, 21 Dec 2016 16:27:07 +0100
Subject: extensions: introduce system extensions

---
 Makefile              |  4 ++--
 src/password-store.sh | 19 ++++++++++++++-----
 2 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/Makefile b/Makefile
index 7546fa9..5bd4f14 100644
--- a/Makefile
+++ b/Makefile
@@ -40,12 +40,12 @@ ifneq ($(strip $(wildcard $(PLATFORMFILE))),)
 install: install-common
 	@install -v -d "$(DESTDIR)$(LIBDIR)/password-store" && install -m 0644 -v "$(PLATFORMFILE)" "$(DESTDIR)$(LIBDIR)/password-store/platform.sh"
 	@install -v -d "$(DESTDIR)$(BINDIR)/"
-	sed 's:.*PLATFORM_FUNCTION_FILE.*:source "$(DESTDIR)$(LIBDIR)/password-store/platform.sh":' src/password-store.sh > "$(DESTDIR)$(BINDIR)/pass"
+	sed 's:.*PLATFORM_FUNCTION_FILE.*:source "$(LIBDIR)/password-store/platform.sh":;s:^SYSTEM_EXTENSION_DIR=.*:SYSTEM_EXTENSION_DIR="$(LIBDIR)/password-store/extensions":' src/password-store.sh > "$(DESTDIR)$(BINDIR)/pass"
 	@chmod 0755 "$(DESTDIR)$(BINDIR)/pass"
 else
 install: install-common
 	@install -v -d "$(DESTDIR)$(BINDIR)/"
-	sed '/PLATFORM_FUNCTION_FILE/d' src/password-store.sh > "$(DESTDIR)$(BINDIR)/pass"
+	sed '/PLATFORM_FUNCTION_FILE/d;s:^SYSTEM_EXTENSION_DIR=.*:SYSTEM_EXTENSION_DIR="$(LIBDIR)/password-store/extensions":' src/password-store.sh > "$(DESTDIR)$(BINDIR)/pass"
 	@chmod 0755 "$(DESTDIR)$(BINDIR)/pass"
 endif
 
diff --git a/src/password-store.sh b/src/password-store.sh
index 52cc941..a5a8002 100755
--- a/src/password-store.sh
+++ b/src/password-store.sh
@@ -603,12 +603,21 @@ cmd_extension_or_show() {
 		cmd_show "$@"
 	fi
 }
+
+SYSTEM_EXTENSION_DIR=""
 cmd_extension() {
-	[[ $PASSWORD_STORE_ENABLE_EXTENSIONS == true ]] || return 1
-	local extension="$EXTENSIONS/$1.bash"
-	check_sneaky_paths "$extension"
-	[[ -f $extension && -x $extension ]] || return 1
-	verify_file "$extension"
+	check_sneaky_paths "$1"
+	local user_extension system_extension extension
+	[[ -n $SYSTEM_EXTENSION_DIR ]] && system_extension="$SYSTEM_EXTENSION_DIR/$1.bash"
+	[[ $PASSWORD_STORE_ENABLE_EXTENSIONS == true ]] && user_extension="$EXTENSIONS/$1.bash"
+	if [[ -n $user_extension && -f $user_extension && -x $user_extension ]]; then
+		verify_file "$user_extension"
+		extension="$user_extension"
+	elif [[ -n $system_extension && -f $system_extension && -x $system_extension ]]; then
+		extension="$system_extension"
+	else
+		return 1
+	fi
 	shift
 	source "$extension" "$@"
 	return 0
-- 
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