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"retrieve")
((equal? hed "--publish")
"publish")
((equal? hed "--area-admin")
"area-admin")
((equal? hed "--writer-admin")
"writer-admin")
((null? tal)
#f)
(else
(loop (car tal)(cdr tal))))))
(define (is-access-valid exp-str)
(let* ((ret-val #f )
(date-parts (string-split exp-str "/"))
(yr (string->number (car date-parts)))
(month (string->number(car (cdr date-parts))))
(day (string->number(caddr date-parts)))
(exp-date (make-date 0 0 0 0 day month yr )))
;(print exp-date)
;(print (current-date))
(if (> (date-compare exp-date (current-date)) 0)
(set! ret-val #t))
;(print ret-val)
ret-val))
(define (get-obj-by-path path)
(let* ((obj '()))
(sauthorize:db-do (lambda (db)
(let* ((data-row (query fetch (sql db (conc "SELECT code,exe_name, id, basepath FROM areas where areas.basepath = '" path "'")))))
(set! obj data-row))))
obj))
(define (get-obj-by-code code )
(let* ((obj '()))
(sauthorize:db-do (lambda (db)
(let* ((data-row (query fetch (sql db (conc "SELECT code, exe_name, id, basepath FROM areas where areas.code = '" code "'")))))
(set! obj data-row))))
obj))
(run-cmd "/bin/chgrp" (list group dpath))
(run-cmd "/bin/chmod" (list "u+s,g+s" dpath))))
(run-cmd "chmod" (list "g-w" (conc *exe-path* "/" access-type)))))
(define (get-exe-name path group)
(let ((name ""))
(sauthorize:do-as-calling-user
(lambda ()
(if (equal? (current-effective-user-id) (file-owner path))
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"retrieve")
((equal? hed "--publish")
"publish")
((equal? hed "--area-admin")
"area-admin")
((equal? hed "--writer-admin")
"writer-admin")
((equal? hed "--read-admin")
"read-admin")
((null? tal)
#f)
(else
(loop (car tal)(cdr tal))))))
;; check if user can gran access to an area
(define (can-grant-perm username access-type area)
(let* ((isadmin (is-admin username))
(is-area-admin (is-user "area-admin" username area ))
(is-read-admin (is-user "read-admin" username area) )
(is-writer-admin (is-user "writer-admin" username area) ) )
(cond
((equal? isadmin #t)
#t)
((equal? is-area-admin #t )
#t)
((and (equal? is-writer-admin #t ) (equal? access-type "retrieve"))
#t)
((and (equal? is-read-admin #t ) (equal? access-type "retrieve"))
#t)
(else
#f))))
(define (sauthorize:list-areausers area )
(sauthorize:db-do (lambda (db)
(print "Users having access to " area ":")
(query (for-each-row
(lambda (row)
(let* ((exp-date (cadr row)))
(if (is-access-valid exp-date)
(apply print (intersperse row " | "))))))
(sql db (conc "SELECT users.username, permissions.expiration, permissions.access_type FROM users, areas, permissions where permissions.user_id = users.id and permissions.area_id = areas.id and areas.code = '" area "'"))))))
; check if executable exists
(define (exe-exist exe access-type)
(let* ((filepath (conc *exe-path* "/" access-type "/" exe)))
; (print filepath)
(if (file-exists? filepath)
#t
#f)))
(define (copy-exe access-type exe-name group)
(run-cmd "/bin/chmod" (list "g+w" (conc *exe-path* "/" access-type)))
(let* ((spath (conc *exe-src* "/s" access-type))
(dpath (conc *exe-path* "/" access-type "/" exe-name)))
(sauthorize:do-as-calling-user
(lambda ()
(run-cmd "/bin/cp" (list spath dpath ))
(if (equal? access-type "publish")
(run-cmd "/bin/chmod" (list "u+s,o+rx" dpath))
(begin
(run-cmd "/bin/chgrp" (list group dpath))
(run-cmd "/bin/chmod" (list "g+s,o+rx" dpath))))
))
(run-cmd "chmod" (list "g-w" (conc *exe-path* "/" access-type)))))
(define (get-exe-name path group)
(let ((name ""))
(sauthorize:do-as-calling-user
(lambda ()
(if (equal? (current-effective-user-id) (file-owner path))
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(exit 1))
(else
(if (not (exe-exist exe-name access-type))
(copy-exe access-type exe-name group))
(sauthorize:db-do (lambda (db)
(sauthorize:db-qry db (conc "insert into areas (code, basepath, exe_name) values ('" code "', '" path "', '" exe-name "') "))))))))
(define (user-has-open-perm user path)
(let* ((has-access #f)
(eid (current-user-id)))
(cond
((is-admin user)
(set! has-access #t ))
(else
(print "User " user " does not have permission to open areas")))
has-access))
(define (run-cmd cmd arg-list)
(handle-exceptions
exn
(debug:print 0 "ERROR: failed to run script " conversion-script " with params " upstream-file " " package-config)
(let ((pid (process-run cmd arg-list)))
(process-wait pid))))
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(exit 1))
(else
(if (not (exe-exist exe-name access-type))
(copy-exe access-type exe-name group))
(sauthorize:db-do (lambda (db)
(sauthorize:db-qry db (conc "insert into areas (code, basepath, exe_name) values ('" code "', '" path "', '" exe-name "') "))))))))
(define (user-has-open-perm user path access)
(let* ((has-access #f)
(eid (current-user-id)))
(cond
((is-admin user)
(set! has-access #t ))
((and (is-read-admin user) (equal? access "retrieve"))
(set! has-access #t ))
(else
(print "User " user " does not have permission to open areas")))
has-access))
;;check if user has group access
(define (is-group-washed req_grpid current-grp-list)
(let loop ((hed (car current-grp-list))
(tal (cdr current-grp-list)))
(cond
((equal? hed req_grpid)
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(begin
(print "Group " group " is not washed in the current xterm!!")
(exit 1))))
(if (not (file-write-access? path))
(begin
(print "You can open areas owned by yourself. You do not have permissions to open path." path)
(exit 1)))
(if (user-has-open-perm user path)
(begin
(open-area group path code access-type)
(sauthorize:db-do (lambda (db)
(sauthorize:db-qry db (conc "INSERT INTO actions (cmd,user_id,area_id,action_type ) VALUES ('sauthorize open " path " --code " code " --group " group " --" access-type "'," (car (get-user user)) "," (car (get-area code)) ", 'open' )"))))
(print "Area has " path " been opened for " access-type ))))
(define (sauthorize:grant auser guser area exp-date access-type restrict)
; check if user exist
(let* ((area-obj (get-area area))
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(begin
(print "Group " group " is not washed in the current xterm!!")
(exit 1))))
(if (not (file-write-access? path))
(begin
(print "You can open areas owned by yourself. You do not have permissions to open path." path)
(exit 1)))
(if (user-has-open-perm user path access-type)
(begin
(open-area group path code access-type)
(sauthorize:grant user user code "2017/12/25" "read-admin" "")
(sauthorize:db-do (lambda (db)
(sauthorize:db-qry db (conc "INSERT INTO actions (cmd,user_id,area_id,action_type ) VALUES ('sauthorize open " path " --code " code " --group " group " --" access-type "'," (car (get-user user)) "," (car (get-area code)) ", 'open' )"))))
(print "Area has " path " been opened for " access-type ))))
(define (sauthorize:grant auser guser area exp-date access-type restrict)
; check if user exist
(let* ((area-obj (get-area area))
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(sauthorize:db-qry db (conc "insert into permissions (access_type, user_id, area_id, restriction, expiration ) values ('" access-type "', " (car user-obj) ", " (car area-obj) ", '" restrict "', '" exp-date "')")))))
(begin
;update permissions
(sauthorize:db-do (lambda (db)
(sauthorize:db-qry db (conc "update permissions set access_type = '" access-type "' , restriction = '" restrict "', expiration = '" exp-date "' where user_id = " (car user-obj) " and area_id = " (car area-obj)))))))
(sauthorize:db-do (lambda (db)
(sauthorize:db-qry db (conc "INSERT INTO actions (cmd,user_id,area_id,action_type ) VALUES ('sauthorize grant " guser " --area " area " --expiration " exp-date " --" access-type " --restrict " restrict "'," (car auser-obj) "," (car area-obj) ", 'grant' )"))))
(print "Permission has been sucessfully granted to user " guser) )))
(define (sauthorize:process-action username action . args)
(case (string->symbol action)
((grant)
(if (< (length args) 6)
(begin
(print "ERROR: Missing arguments; " (string-intersperse args ", "))
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(sauthorize:db-qry db (conc "insert into permissions (access_type, user_id, area_id, restriction, expiration ) values ('" access-type "', " (car user-obj) ", " (car area-obj) ", '" restrict "', '" exp-date "')")))))
(begin
;update permissions
(sauthorize:db-do (lambda (db)
(sauthorize:db-qry db (conc "update permissions set access_type = '" access-type "' , restriction = '" restrict "', expiration = '" exp-date "' where user_id = " (car user-obj) " and area_id = " (car area-obj)))))))
(sauthorize:db-do (lambda (db)
(sauthorize:db-qry db (conc "INSERT INTO actions (cmd,user_id,area_id,action_type ) VALUES ('sauthorize grant " guser " --area " area " --expiration " exp-date " --" access-type " --restrict " restrict "'," (car auser-obj) "," (car area-obj) ", 'grant' )"))))
(print "Permission has been sucessfully granted to user " guser))))
(define (sauthorize:process-action username action . args)
(case (string->symbol action)
((grant)
(if (< (length args) 6)
(begin
(print "ERROR: Missing arguments; " (string-intersperse args ", "))
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(print "Missing argument area code to list-area-user ")
(exit 1)))
(let* ((area (car args)))
(if (not (area-exists area))
(begin
(print "Area does not exisit!!")
(exit 1)))
(if (can-grant-perm username "retrieve" area)
(sauthorize:list-areausers area )
(print "User does not have access to run this cmd!"))))
((read-shell)
(if (not (equal? (length args) 1))
(begin
(print "Missing argument area code to read-shell ")
(exit 1)))
(let* ((area (car args))
(code-obj (get-obj-by-code area)))
(if (or (null? code-obj)
(not (exe-exist (cadr code-obj) "retrieve")))
(begin
(print "Area " area " is not open for reading!!")
(exit 1)))
(sauthorize:do-as-calling-user
(lambda ()
(run-cmd (conc *exe-path* "/retrieve/" (cadr code-obj) ) (list "shell" ))))))
((write-shell)
(if (not (equal? (length args) 1))
(begin
(print "Missing argument area code to read-shell ")
(exit 1)))
(let* ((area (car args))
(code-obj (get-obj-by-code area)))
(if (or (null? code-obj)
(not (exe-exist (cadr code-obj) "publish")))
(begin
(print "Area " area " is not open for reading!!")
(exit 1)))
(sauthorize:do-as-calling-user
(lambda ()
(run-cmd (conc *exe-path* "/publish/" (cadr code-obj) ) (list "shell" ))))))
((open)
(if (< (length args) 6)
(begin
(print "sauthorize open cmd takes 6 arguments!! \n Useage: sauthorize open <path> --group <grpname> --code <unique short identifier for an area> --retrieve|--publish")
(exit 1)))
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(print "Missing argument area code to list-area-user ")
(exit 1)))
(let* ((area (car args)))
(if (not (area-exists area))
(begin
(print "Area does not exisit!!")
(exit 1)))
(sauthorize:list-areausers area )
))
((read-shell)
(if (not (equal? (length args) 1))
(begin
(print "Missing argument area code to read-shell ")
(exit 1)))
(let* ((area (car args))
(code-obj (get-obj-by-code area)))
(if (or (null? code-obj)
(not (exe-exist (cadr code-obj) "retrieve")))
(begin
(print "Area " area " is not open for reading!!")
(exit 1)))
(sauthorize:do-as-calling-user
(lambda ()
(run-cmd (conc *exe-path* "/retrieve/" (cadr code-obj) ) (list "shell" area ))))))
((write-shell)
(if (not (equal? (length args) 1))
(begin
(print "Missing argument area code to read-shell ")
(exit 1)))
(let* ((area (car args))
(code-obj (get-obj-by-code area)))
(if (or (null? code-obj)
(not (exe-exist (cadr code-obj) "publish")))
(begin
(print "Area " area " is not open for reading!!")
(exit 1)))
(sauthorize:do-as-calling-user
(lambda ()
(run-cmd (conc *exe-path* "/publish/" (cadr code-obj) ) (list "shell" area))))))
((open)
(if (< (length args) 6)
(begin
(print "sauthorize open cmd takes 6 arguments!! \n Useage: sauthorize open <path> --group <grpname> --code <unique short identifier for an area> --retrieve|--publish")
(exit 1)))
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(exit 1))
((equal? area "")
(print "--code not found!! Try \"sauthorize help\" for useage ")
(exit 1))
((equal? access-type #f)
(print "Access type not found!! Try \"sauthorize help\" for useage ")
(exit 1))
((or (equal? access-type "area-admin")
(equal? access-type "writer-admin"))
(print "Access type can be eiter --retrieve or --publish !! Try \"sauthorize help\" for useage ")
(exit 1)))
(sauthorize:open username path group area access-type)))
(else (debug:print 0 "Unrecognised command " action))))
(define (main)
(let* ((args (argv))
(prog (car args))
(rema (cdr args))
(username (current-user-name)))
;; preserve the exe data in the config file
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(exit 1))
((equal? area "")
(print "--code not found!! Try \"sauthorize help\" for useage ")
(exit 1))
((equal? access-type #f)
(print "Access type not found!! Try \"sauthorize help\" for useage ")
(exit 1))
((and (not (equal? access-type "publish"))
(not (equal? access-type "retrieve")))
(print "Access type can be eiter --retrieve or --publish !! Try \"sauthorize help\" for useage ")
(exit 1)))
(sauthorize:open username path group area access-type)))
((register-log)
(if (< (length args) 4)
(print "Invalid arguments"))
;(print args)
(let* ((cmd-line (car args))
(user-id (cadr args))
(area-id (caddr args))
(user-obj (get-user username))
(cmd (cadddr args)))
(if (and (not (null? user-obj)) (equal? user-id (number->string(car user-obj))))
(begin
(sauthorize:db-do (lambda (db)
(sauthorize:db-qry db (conc "INSERT INTO actions (cmd,user_id,area_id,action_type ) VALUES ('" cmd-line"', " user-id "," area-id ", '" cmd "')" )))))
(print "You ar not authorised to run this cmd")
)))
(else (print 0 "Unrecognised command " action))))
(define (main)
(let* ((args (argv))
(prog (car args))
(rema (cdr args))
(username (current-user-name)))
;; preserve the exe data in the config file
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