101 lines
2.5 KiB
Bash
Executable file
101 lines
2.5 KiB
Bash
Executable file
#!/usr/bin/env bash
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[ -z $SQL_PROXY_HOST ] && SQL_PROXY_HOST="localhost"
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[ -z $SQL_PROXY_DB_PORT ] && SQL_PROXY_DB_PORT="3306"
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CONNECTION_CACHE="$HOME/.cache/sqlproxy_$SQL_PROXY_HOST"
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HELP="Usage: myssh [ls|connect]\n
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SUBCOMMANDS:\n
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ls: list available database hosts\n
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connect: connect to a database host\n
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disconnect: Quit existing ssh master session\n
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\n
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SYNTAX connect host [-u user] [-p password] [-c client]
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"
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ssh_status() {
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ssh -O check -S $HOME/.ssh/controlmasters/%r@%h:%p $SQL_PROXY_HOST > /dev/null 2>&1
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echo $?
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}
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connect() {
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mkdir -p $HOME/.ssh/controlmasters
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if [ $(ssh_status) -ne 0 ]
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then
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echo "" > $CONNECTION_CACHE
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ssh -o "ControlPersist=10m" -M -S $HOME/.ssh/controlmasters/%r@%h:%p $SQL_PROXY_HOST q
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fi
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}
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disconnect() {
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if [ $(ssh_status) -eq 0 ]
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then
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ssh -O stop -S $HOME/.ssh/controlmasters/%r@%h:%p $SQL_PROXY_HOST q
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fi
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}
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port_forward() {
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ACTIVE_HOST=$(cat $CONNECTION_CACHE)
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if [ -z $ACTIVE_HOST ] || [ $ACTIVE_HOST != $1:$SQL_PROXY_DB_PORT ]
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then
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echo "Reconnect"
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if [ ! -z $ACTIVE_HOST ]
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then
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ssh -O cancel -L 3306:$ACTIVE_HOST -S $HOME/.ssh/controlmasters/%r@%h:%p $SQL_PROXY_HOST q
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fi
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ssh -O forward -L 3306:$1:$SQL_PROXY_DB_PORT -S $HOME/.ssh/controlmasters/%r@%h:%p $SQL_PROXY_HOST
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fi
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echo $1:$SQL_PROXY_DB_PORT > $CONNECTION_CACHE
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}
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ls_hosts() {
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ssh -S $HOME/.ssh/controlmasters/%r@%h:%p $SQL_PROXY_HOST ls
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}
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run_client() {
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if [ $(uname -s) = "Linux" ]
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then
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mysql --protocol=TCP -u $1 -p$2 -h localhost -P 3306
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else
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open "mysql://$1:$2@localhost:3306" -a "Sequel Ace"
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fi
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}
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MAIN_OPTION=$1
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shift
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# ensure connection
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connect
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case $MAIN_OPTION in
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ls)
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ls_hosts;;
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connect)
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# check if host is valid
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TARGET_HOST=$1
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shift
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ls_hosts | grep -qe "^$TARGET_HOST$"
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GREP_EXIT_CODE=$?
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if [ $GREP_EXIT_CODE -eq 0 ]
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then
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while getopts "u:p:" o
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do
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case "$o" in
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u) MYSQL_USERNAME="$OPTARG" ;;
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p) MYSQL_PASSWORD="$OPTARG" ;;
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esac
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done
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port_forward $TARGET_HOST
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if [ ! -z $MYSQL_USERNAME ] && [ ! -z $MYSQL_PASSWORD ]
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then
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run_client $MYSQL_USERNAME $MYSQL_PASSWORD
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fi
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else
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echo "Invalid Hostname: $TARGET_HOST."
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fi
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;;
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disconnect)
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disconnect;;
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*)
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echo -e $HELP;;
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esac
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