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https://github.com/deajan/obackup.git
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108 lines
2.3 KiB
Bash
Executable File
108 lines
2.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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##### osync / obackup ssh command filter build 2015102701
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##### This script should be located in /usr/local/bin in the remote system to sync / backup
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##### It will filter the commands that can be run remotely via ssh.
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##### Please chmod 755 and chown root:root this file
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##### Obackup needed commands: rsync find du mysql mysqldump (sudo)
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##### Osync needed commands: rsync find du echo mkdir rm if df (sudo)
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## If enabled, execution of "sudo" command will be allowed.
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SUDO_EXEC=yes
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## Paranoia option. Don't change this unless you read the documentation and still feel concerned about security issues.
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RSYNC_EXECUTABLE=rsync
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## Enable other commands, useful for remote execution hooks like remotely creating snapshots.
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CMD1=
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CMD2=
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CMD3=
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LOG_FILE=~/.ssh/ssh_filter.log
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function Log {
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DATE=$(date)
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echo "$DATE - $1" >> $LOG_FILE
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}
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function Go {
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eval $SSH_ORIGINAL_COMMAND
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}
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case ${SSH_ORIGINAL_COMMAND%% *} in
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"$RSYNC_EXECUTABLE")
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Go ;;
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"echo")
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Go ;;
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"find")
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Go ;;
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"du")
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Go ;;
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"mkdir")
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Go ;;
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"rm")
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Go ;;
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"df")
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Go ;;
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"mv")
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Go ;;
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"$CMD1")
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if [ "$CMD1" != "" ]; then
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Go ;;
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fi
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"$CMD2")
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if [ "$CMD2" != "" ]; then
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Go ;;
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fi
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"$CMD3")
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if [ "$CMD3" != "" ]; then
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Go ;;
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fi
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"sudo")
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if [ "$SUDO_EXEC" == "yes" ]; then
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if [[ "$SSH_ORIGINAL_COMMAND" == "sudo $RSYNC_EXECUTABLE"* ]]; then
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Go
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elif [[ "$SSH_ORIGINAL_COMMAND" == "sudo du"* ]]; then
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Go
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elif [[ "$SSH_ORIGINAL_COMMAND" == "sudo find"* ]]; then
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Go
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elif [[ "$SSH_ORIGINAL_COMMAND" == "sudo mkdir"* ]]
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then
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Go
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elif [[ "$SSH_ORIGINAL_COMMAND" == "sudo rm"* ]]
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then
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Go
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elif [[ "$SSH_ORIGINAL_COMMAND" == "sudo echo"* ]]
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then
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Go
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elif [[ "$SSH_ORIGINAL_COMMAND" == "sudo df"* ]]
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then
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Go
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elif [[ "$SSH_ORIGINAL_COMMAND" == "sudo mv"* ]]
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then
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Go
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elif [[ "$SSH_ORIGINAL_COMMAND" == "sudo $CMD1"* ]]; then
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if [ "$CMD1" != "" ]; then
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Go
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fi
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elif [[ "$SSH_ORIGINAL_COMMAND" == "sudo $CMD2"* ]]; then
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if [ "$CMD2" != "" ]; then
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Go
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fi
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elif [[ "$SSH_ORIGINAL_COMMAND" == "sudo $CMD3"* ]]; then
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if [ "$CMD3" != "" ]; then
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Go
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fi
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else
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Log "Command [$SSH_ORIGINAL_COMMAND] not allowed."
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exit 1
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fi
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else
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Log "Command [$SSH_ORIGINAL_COMMAND] not allowed. sudo not enabled."
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exit 1
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fi
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;;
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*)
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Log "Command [$SSH_ORIGINAL_COMMAND] not allowed."
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exit 1
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esac
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