#!/bin/bash
function load_config() 
{
   scriptPath=$(dirname "$(readlink -f "$BASH_SOURCE")")
   . $scriptPath/.upload_config

}
[ $# -lt 2 ] && echo "missing args: $0 path duration [plain]" && exit 1
set -e
set -u
load_config

[ ! -e "$1" ] && echo "Path $1 does not exist" && exit 1


random=$(pwgen -s -n 25)
when=""
if [ $# -eq 2 ] ; then
	when=$( date -d +"$2" +%s )
	echo "Storing until: $(date -d @$when)"
fi
PLAIN=0
if [ $# -eq 3 ] ; then
	if [ $3  = "plain" ] ; then
		PLAIN=1
	fi
fi
ssh $UPLOADER_SSH_SERVER mkdir $UPLOADER_UPLOAD_DIR/$random

BASENAME=$( basename "$1" )
LINK=""
if [ $PLAIN -eq 1 ] ; then
	scp -r "$1" $UPLOADER_SSH_SERVER:$UPLOADER_UPLOAD_DIR/$random/$BASENAME
	LINK="$UPLOADER_URL_PREFIX/$random/$BASENAME"
else
	KEYBASE=$(openssl rand -base64 32)
	KEYASHEX=$(echo -n $KEYBASE | base64 -d | xxd -p -c 10000) # linebreak after 10000 chars. i.e. never

	UPLOADED_NAME="$BASENAME"
	FSNAME="$BASENAME"_enc
	PIPER="cat $1"
	MIMETYPE=""
	if [ -d "$1" ] ; then
		PIPER="tar cJf - $1"
		MIMETYPE="application/x-xz"
		UPLOADED_NAME="$BASENAME".tar.xz
		FSNAME="$UPLOADED_NAME"_enc
	else
		MIMETYPE=$(file -i "$1" | awk '{print $2}' | sed -e 's/;//g' )
	fi

	$PIPER | openssl enc -aes-256-cbc -K "$KEYASHEX" -iv $(printf '0%.0s' {1..32}) |  # print '0' 32 times = 16 bytes as hex
	ssh $UPLOADER_SSH_SERVER "cat > $UPLOADER_UPLOAD_DIR/$random/$FSNAME"
	LINK="$UPLOADER_URL_PREFIX#$random/$FSNAME:$KEYBASE:$MIMETYPE:$UPLOADED_NAME"
fi

echo "$LINK"
echo ""
echo "Press any key to copy the link to your clipboard" 1>&2
read -n 1 -t 5 ANSWER
if [ -n "$ANSWER" ] ; then
    echo "$LINK" | xclip -selection clipboard
fi
ssh $UPLOADER_SSH_SERVER chown -R $UPLOADER_FILE_OWNER $UPLOADER_UPLOAD_DIR/$random/
ssh $UPLOADER_SSH_SERVER "echo $when:$random >> $UPLOADER_EXPIRATION_FILE"