added file installing

1 files changed, 25 insertions, 0 deletions

diff --git a/src/validate.sh b/src/validate.sh
new file mode 100644
index 0000000..4f73729
--- /dev/null
+++ b/src/validate.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+
+validate_checksum () {
+    local file=$1
+    local checksum=$2
+    [ ! -f $file ] && return 1
+    [ "$(md5sum $file | awk '{ print $1; }')" = "$checksum" ]
+}
+
+validate_sig () {
+    local pkg_file=$1
+    local info_file=$2
+    local keychain
+
+    local sig_encoded=$(sed -rn "s/^SIGNATURE=(.*)/\1/p" $info_file)
+    local sig_file="${pkg_file}.sig"
+
+    echo $sig_encoded | tr ' ' '\n' | base64 -d > $sig_file
+
+    for key in ${KEYCHAIN_DIR}/*.pub; do
+        ${VERBOSE} && printf "${LIGHT_BLACK}Checking verification against $(basename $key) for $(basename $pkg_file)\n${RESET}"
+        openssl dgst -verify $key -signature $sig_file $pkg_file | grep -q "OK" && return 0
+    done
+    return 1
+}