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- #!/bin/bash
- SHELL=/bin/bash
- if [[ $EUID -ne 0 ]]; then echo 'root only'; exit 1; fi
- ## parent process id
- _PPID=$PPID
- ## grandparent process id (process that called sudo that called us)
- _GPPID=$(ps -p$PPID -o ppid=)
- ## grandparent command
- _GPCMD=$(ps -f -p$_GPPID)
- ## check if called by admin.sh
- if [[ ! $_GPCMD =~ 'admin/admin.sh' ]]; then echo 'bad granny'; exit 1; fi
- ## get lighttpd session id
- _LSID=$(ps -C lighttpd -o sid=)
- ## parent session id
- _PSID=${@: -1}
- ## our session id
- _SID=$(ps -p$$ -o sid=)
- ## check if we belong to group/session of lighty and admin.sh
- if [ $_LSID != $_PSID -o $_SID != $_LSID ]; then echo 'bad session'; exit 1; fi
- ## remove _PSID from the arguments
- _ARGS=${@//$_PSID}
- eval $_ARGS
- exit $?
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