57 lines
2.4 KiB
Common Lisp
57 lines
2.4 KiB
Common Lisp
(defparameter *allowed-commands* '("ls" "git" "rg" "grep" "date" "echo" "cat" "node" "python3" "sbcl"))
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(defparameter *shell-metacharacters* '(#\; #\& #\| #\> #\< #\$ #\` #\\ #\!))
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(defun shell-command-safe-p (cmd-string)
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"Returns T if the command string contains no dangerous metacharacters."
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(not (some (lambda (char) (find char cmd-string)) *shell-metacharacters*)))
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(defun execute-shell-safely (action context)
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(let* ((payload (getf action :PAYLOAD))
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(cmd-string (getf payload :cmd))
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(executable (car (uiop:split-string (string-trim " " cmd-string) :separator '(#\Space)))))
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(cond
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((not (shell-command-safe-p cmd-string))
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(opencortex:inject-stimulus
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`(:TYPE :EVENT :PAYLOAD (:SENSOR :shell-response :cmd ,cmd-string :stdout "" :stderr "ERROR - Security Violation: Dangerous metacharacters detected." :exit-code 1))
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:stream (getf context :reply-stream)))
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((not (member executable *allowed-commands* :test #'string=))
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(opencortex:inject-stimulus
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`(:TYPE :EVENT :PAYLOAD (:SENSOR :shell-response :cmd ,cmd-string :stdout "" :stderr "ERROR - Command not in security whitelist." :exit-code 1))
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:stream (getf context :reply-stream)))
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(t
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(multiple-value-bind (stdout stderr exit-code)
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(uiop:run-program cmd-string :output :string :error-output :string :ignore-error-status t)
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(opencortex:inject-stimulus
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`(:TYPE :EVENT :PAYLOAD (:SENSOR :shell-response :cmd ,cmd-string :stdout ,(or stdout "") :stderr ,(or stderr "") :exit-code ,exit-code))
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:stream (getf context :reply-stream)))))))
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(defun trigger-skill-shell-actuator (context)
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(let ((type (getf context :TYPE))
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(payload (getf context :PAYLOAD)))
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(and (eq type :EVENT)
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(eq (getf payload :SENSOR) :shell-response))))
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(defun probabilistic-skill-shell-actuator (context)
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(let* ((p (getf context :PAYLOAD))
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(cmd (getf p :cmd))
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(stdout (getf p :stdout))
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(stderr (getf p :stderr))
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(exit-code (getf p :exit-code)))
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(format nil "SHELL COMMAND RESULT:
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Command: ~a
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Exit Code: ~a
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STDOUT: ~a
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STDERR: ~a" cmd exit-code stdout stderr)))
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(opencortex:register-actuator :shell #'execute-shell-safely)
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(defskill :skill-shell-actuator
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:priority 80
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:trigger #'trigger-skill-shell-actuator
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:probabilistic #'probabilistic-skill-shell-actuator
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:deterministic (lambda (action context) (declare (ignore context)) action))
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