From 576c9e6958a4f016d2a3fda6251ca95caee7423f Mon Sep 17 00:00:00 2001
From: "Ramón M. Gómez" <ramongomez@us.es>
Date: Mon, 15 Oct 2018 10:38:58 +0200
Subject: #873: New script {{{importomage}}}.

---
 repoman/bin/importimage | 110 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 110 insertions(+)
 create mode 100755 repoman/bin/importimage

diff --git a/repoman/bin/importimage b/repoman/bin/importimage
new file mode 100755
index 00000000..36a188e4
--- /dev/null
+++ b/repoman/bin/importimage
@@ -0,0 +1,110 @@
+#!/bin/bash
+#/**
+#@file    importimage
+#@usage   importimage [str_user] str_repo str_imagename
+#@brief   Imports an image file from other repository
+#@param   str_user      username to access the remote repository (local user, by default)
+#@param   str_repo      repository IP address or hostaname
+#@param   str_imagename image name to download
+#@warning Program will request the repository REST token.
+#@version 1.1.1 - Initial version
+#@author  Ramón M. Gómez, ETSII Universidad de Sevilla
+#@date    2017-10-08
+#*/
+
+
+# Variables.
+PROG="$(basename "$0")"
+OPENGNSYS="/opt/opengnsys"
+REPODIR="$OPENGNSYS/images"
+SERVERCONF="$OPENGNSYS/etc/ogAdmServer.cfg"
+let BACKUP=0
+
+# Functions.
+source $OPENGNSYS/lib/ogfunctions.sh
+
+
+# Main program.
+
+# Error control.
+[ "$USER" = "root" ] || raiseError access "Need to be root."
+[ -w $REPODIR ] || raiseError access "Cannot write in local repository."
+case $# in
+    2)  USERNAME="$SUDO_USER"; REPO="$1"; IMAGE="$2" ;;
+    3)  USERNAME="$1"; REPO="$2"; IMAGE="$3" ;;
+    *)  [ "$*" == "help" ] && help || raiseError usage
+esac
+source $SERVERCONF &>/dev/null
+[ "${REPO,,}" == "${HOSTNAME,,}" -o "${REPO,,}" == "localhost" -o "${REPO}" == "127.0.0.1" -o "${REPO,,}" == "${IPLocal,,}}" ] && raiseError access "Cannot import from local repository."
+
+# Fetching image info from the repository.
+read -rp "Enter repository API token: " APITOKEN
+IMAGEINFO="$(curl -k -H "Authorization: $APITOKEN" "https://$REPO/opengnsys/rest/repository/image/$IMAGE" 2> /dev/null | jq -r .)"
+IMAGENAME="$(jq -r '.name' <<< "$IMAGEINFO" 2>/dev/null)"
+case "$IMAGEINFO" in
+    "") # Connection error.
+        raiseError access "Cannot connect to $REPO" ;;
+    "[]") # Image not found.
+        raiseError notfound "Image $IMAGE in remote repository $REPO" ;;
+    *)  # Checking REST error.
+        MESSAGE="$(jq -r '.message' <<< "$IMAGEINFO" 2>/dev/null)"
+        [ -n "$MESSAGE" ] && raiseError access "$MESSAGE"
+esac
+IMAGETYPE="$(jq -r '.type' <<< "$IMAGEINFO" 2>/dev/null)"
+IMAGELOCKED="$(jq -r '.locked' <<< "$IMAGEINFO" 2>/dev/null)"
+[ "$IMAGELOCKED" == "true" ] && raiseError access "Image locked by remote repository."
+IMAGESIZE="$(jq -r '.size' <<< "$IMAGEINFO" 2>/dev/null)"
+[ -z "$IMAGESIZE" ] && raiseError access "Cannot retrieve image size"
+# Checking if local image is locked.
+LOCKFILE="$IMAGEPATH.lock"
+[ -f "$LOCKFILE" ] && raiseError access "Local image is locked, cannot write."
+# Checking if local image exists.
+IMAGEPATH="$REPODIR/$IMAGENAME.$IMAGETYPE"
+if [ -e "$IMAGEPATH" ]; then
+    read -rp "Image $IMAGENAME exists in the local repository. Do you want to continue? (y/N): " ANSWER
+    [ "${ANSWER,,}" = "y" ]  || exit
+    BACKUP=1
+    REMOTEDATE=$(jq -r '.modified' <<< "$IMAGEINFO" 2>/dev/null)
+    LOCALDATE=$(stat -c "%y" "$IMAGEPATH" | cut -f1 -d.)
+    if [[ "$REMOTEDATE" < "$LOCALDATE" ]]; then
+        read -rp "Remote image seems older than the local one. Do you want to continue? (y/N): " ANSWER
+        [ "${ANSWER,,}" = "y" ]  || exit
+    fi
+fi
+
+# Trapping signal to unlock image before exit.
+trap "rm -f $LOCKFILE" 1 2 3 6 9 15
+# Creating lock file.
+touch $LOCKFILE
+# Backing up local image.
+if [ $BACKUP -eq 1 ]; then
+    mv -vf "$IMAGEPATH" "$IMAGEPATH.ant" 2>/dev/null
+    mv -vf "$IMAGEPATH.torrent" "$IMAGEPATH.torrent.ant" 2>/dev/null
+    mv -vf "$IMAGEPATH.sum" "$IMAGEPATH.sum.ant" 2>/dev/null
+    mv -vf "$IMAGEPATH.full.sum" "$IMAGEPATH.full.sum.ant" 2>/dev/null
+fi
+# Downloading image file.
+[[ $IMAGEPATH =~ / ]] && mkdir -p "$(dirname "$IMAGEPATH")"
+scp $USERNAME@$REPO:$IMAGEPATH $REPODIR
+ERRCODE=$?
+if [ $ERRCODE -eq 0 ]; then
+    # Storing creation info.
+    jq -r '.clonator+":"+.compressor+":"+.filesystem+":"+(.datasize|tostring)+":"' <<<"$IMAGEINFO" > "$IMAGEPATH.info"
+    #### Si no es backup de imagen y es repo con server,
+    ####    crear objeto imagen asociado a nuevo perfil de software vacío.
+    DOWNLOADSIZE=$(stat -c "%s" $IMAGEPATH)
+    [ $IMAGESIZE -ne $DOWNLOADSIZE ] && echo "Warning: image sizes differ: source=$IMAGESIZE, target=$DOWNLOADSIZE."
+else
+    raiseError download "$USERNAME@$REPO:$IMAGEPATH"
+    # Recovering back up, if needed.
+    if [ $BACKUP -eq 1 ]; then
+        mv -vf "$IMAGEPATH.ant" "$IMAGEPATH" 2>/dev/null
+        mv -vf "$IMAGEPATH.torrent.ant" "$IMAGEPATH.torrent" 2>/dev/null
+        mv -vf "$IMAGEPATH.sum.ant" "$IMAGEPATH.sum" 2>/dev/null
+        mv -vf "$IMAGEPATH.full.sum.ant" "$IMAGEPATH.full.sum" 2>/dev/null
+    fi
+fi
+
+# Unlocking image.
+rm -f $LOCKFILE
+
-- 
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