Megatest

	(export BASEPATH=/tmp/$(USER)/basepath ; export PATH="$(PWD)/datashare-testing:$(PATH)" ; xterm &)

datashare-testing/spublish : spublish.scm $(OFILES)
	csc $(CSCOPTS) spublish.scm $(OFILES) -o datashare-testing/spublish

datashare-testing/sretrieve : sretrieve.scm megatest-version.o margs.o configf.o process.o 
	csc $(CSCOPTS) sretrieve.scm megatest-version.o margs.o configf.o process.o -o datashare-testing/sretrieve

datashare-testing/sauthorize : sretrieve.scm megatest-version.o margs.o configf.o process.o common.o
	 csc sauthorize.scm megatest-version.o margs.o configf.o process.o common.o -o datashare-testing/sauthorize


sretrieve/sretrieve : datashare-testing/sretrieve
	csc $(CSCOPTS) -deploy -deployed sretrieve.scm megatest-version.o margs.o configf.o process.o
	chicken-install -keep-installed $(PROXY) -deploy -prefix sretrieve defstruct srfi-18 format sql-de-lite \
             srfi-1 posix regex regex-case srfi-69 

# base64 dot-locking \
#             csv-xml z3

#  "(define (toplevel-command . a) #f)"
# if egrep 'version.*3.0' $(shell dirname $(shell dirname $(shell which csi)))/lib/chicken/7/readline.setup-info;then \

[settings]
base-dir      /tmp/delme_data
allowed-users matt 
allowed-chars [0-9a-zA-Z\-\.]+
allowed-sub-paths [0-9a-zA-Z\-\.]+
[database]
location #{scheme (create-directory "/tmp/#{getenv USER}" #t)}

(define *db-path* "/path/to/db") 
(define *exe-path* "/path/to/store/suids")  
(define *exe-src* "/path/to/spublish/and/sretrieve/executables")
(define *sauth-path* "/path/to/production/sauthorize/exe")

;; Create the sqlite db
(define (sauthorize:db-do proc) 
      (if (or (not *db-path*)
              (not (file-exists? *db-path*))) 
	(begin
	  (print 0 "[database]\nlocation " *db-path* " \n\n Is missing from the config file!")
	  (exit 1)))
    (if (and *db-path*
	     (directory? *db-path*)
	     (file-read-access? *db-path*))
	(let* ((dbpath    (conc *db-path* "/sauthorize.db"))
	       (writeable (file-write-access? dbpath))
	       (dbexists  (file-exists? dbpath)))
	  (handle-exceptions
	   exn
	   (begin
	     (debug:print 2 "ERROR: problem accessing db " dbpath
			  ((condition-property-accessor 'exn 'message) exn))
	     (exit 1))
          ;  (print  "calling proc " proc "db path " dbpath )
	   (call-with-database
            dbpath
	    (lambda (db)
	       ;(print 0 "calling proc " proc " on db " db)
	      (set-busy-handler! db (busy-timeout 10000)) ;; 10 sec timeout
	      (if (not dbexists)(sauthorize:initialize-db db))
	      (proc db)))))
	(print 0 "ERROR: invalid path for storing database: " *db-path*)))

;;execute a query
(define (sauthorize:db-qry db qry)
  (exec (sql db  qry)))


(define (sauthorize:do-as-calling-user proc)
  (let ((eid (current-effective-user-id))
        (cid (current-user-id)))
    (if (not (eq? eid cid)) ;; running suid
            (set! (current-effective-user-id) cid))
     ;(print 0 "cid " cid " eid:" eid)
    (proc)
    (if (not (eq? eid cid))
        (set! (current-effective-user-id) eid))))


(define (run-cmd cmd arg-list)
  ; (print (current-effective-user-id))
   ;(handle-exceptions
;	     exn
;	     (print 0 "ERROR: failed to run script " cmd " with params " arg-list " " (exn assert))
	     (let ((pid (process-run cmd arg-list)))
	       (process-wait pid))
)
;)


(define (regster-log inl usr-id  area-id  cmd)
  (sauth-common:shell-do-as-adm
        (lambda ()
         (sauthorize:db-do   (lambda (db)
             (sauthorize:db-qry db (conc "INSERT INTO actions (cmd,user_id,area_id,action_type ) VALUES ('sretrieve " inl "'," usr-id ","  area-id ", 'cat' )")))))))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Check user types
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;



;;check if a user is an admin
(define (is-admin username)
   (let* ((admin #f))
    (sauthorize:db-do  (lambda (db)
        (let* ((data-row (query fetch (sql db (conc "SELECT users.is_admin FROM  users where users.username = '" username "'")))))
        (if (not (null? data-row))
             (let ((col  (car data-row)))
             (if (equal? col "yes")
                   (set! admin #t)))))))  	        
admin))


;;check if a user is an read-admin
(define (is-read-admin username)
   (let* ((admin #f))
    (sauthorize:db-do  (lambda (db)
        (let* ((data-row (query fetch (sql db (conc "SELECT users.is_admin FROM  users where users.username = '" username "'")))))
        (if (not (null? data-row))
             (let ((col  (car data-row)))
             (if (equal? col "read-admin")
                   (set! admin #t)))))))  	        
admin))


;;check if user has specifc role for a area
(define (is-user role username area)
  (let* ((has-access #f))
    (sauthorize:db-do  (lambda (db)
        (let* ((data-row (query fetch (sql db (conc "SELECT  permissions.access_type, permissions.expiration FROM  users ,  areas, permissions where permissions.user_id = users.id and permissions.area_id = areas.id and users.username = '" username "' and areas.code = '" area "'")))))
        (if (not (null? data-row))
           (begin
               (let* ((access-type  (car data-row))
                    (exdate (cadr data-row)))
               (if (not (null? exdate)) 
               (begin 
                  (let ((valid (is-access-valid  exdate)))
                   ;(print valid) 
                  (if (and (equal? access-type role)
                        (equal? valid #t))
                   (set! has-access #t))))
                (print "Access expired"))))))))
 ;(print has-access)
has-access))

(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))


;check if area exists
(define (area-exists area)
   (let* ((area-defined #f))
    (sauthorize:db-do  (lambda (db)
        (let* ((data-row (query fetch (sql db (conc "SELECT  id FROM  areas where areas.code = '" area "'")))))
           (if (not (null? data-row))
                 (set! area-defined #t)))))
area-defined))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Get Record from database
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;gets area id by code 
(define (get-area area)
   (let* ((area-defined '()))
    (sauthorize:db-do  (lambda (db)
        (let* ((data-row (query fetch (sql db (conc "SELECT  id FROM  areas where areas.code = '" area "'")))))
          (set!  area-defined data-row))))
area-defined))

;get id of users table by user name 
(define (get-user user)
  (let* ((user-defined '()))
    (sauthorize:db-do  (lambda (db)
        (let* ((data-row (query fetch (sql db (conc "SELECT  id FROM  users where users.username = '" user "'")))))
          (set!  user-defined data-row))))
user-defined))

;get permissions id by userid and area id 
(define (get-perm userid areaid)
  (let* ((user-defined '()))
    (sauthorize:db-do  (lambda (db)
          (let* ((data-row (query fetch (sql db (conc "SELECT  id FROM  permissions where user_id = " userid " and area_id = " areaid)))))
         (set!  user-defined data-row))))

user-defined))

(define (get-restrictions base-path usr)
(let* ((user-defined '()))
    (sauthorize:db-do  (lambda (db)
          (let* ((data-row (query fetch (sql db (conc "SELECT  restriction FROM areas, users, permissions where  areas.id = permissions.area_id and users.id =  permissions.user_id and  users.username = '" usr "' and areas.basepath = '" base-path "'")))))
         ;(print data-row) 
         (set!  user-defined data-row))))
    ;   (print user-defined)
  (if (null? user-defined)
      ""
      (car user-defined))))


(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))))
;(print obj)
obj))



;; function to validate the users input for target path and resolve the path
;; TODO: Check for restriction in subpath 
(define (sauth-common:resolve-path  new current allowed-sheets)
   (let* ((target-path (append  current (string-split new "/")))
          (target-path-string (string-join target-path "/"))
          (normal-path (normalize-pathname target-path-string))
          (normal-list (string-split normal-path "/"))
           (ret '()))
   (if (string-contains   normal-path "..")
    (begin
      (print "ERROR: Path  " new " resolved outside target area ")
      #f)
    (if(equal? normal-path ".")
      ret  
    (if (not (member  (car normal-list) allowed-sheets))
      (begin
      (print "ERROR: Permision denied to  " new )
       #f)
    normal-list)))))

(define (sauth-common:get-target-path base-path-list ext-path top-areas base-path)
  (let* ((resolved-path (sauth-common:resolve-path ext-path base-path-list top-areas ))
          (usr (current-user-name) ) )
          (if (not (equal? resolved-path #f))
           (if (null? resolved-path) 
             #f
           (let* ((sheet (car resolved-path))
                   (restricted-areas (get-restrictions base-path usr))
                   (restrictions (conc ".*" (string-join (string-split restricted-areas ",") ".*|.*") ".*"))
           	   (target-path (if (null? (cdr resolved-path)) 
                                     base-path 
                                     (conc base-path "/" (string-join (cdr resolved-path) "/")))))
                   ; (print restricted-areas)     
                    (if (and (not (equal? restricted-areas "" ))
                             (string-match (regexp  restrictions) target-path)) 
                        (begin
                          (print "Access denied to " (string-join resolved-path "/"))
                          ;(exit 1)   
                         #f)
                                        target-path)))
             #f)))

(define (sauth-common:shell-ls-cmd base-path-list ext-path top-areas base-path tail-cmd-list)
    (if (and (null? base-path-list) (equal? ext-path "") )
      (print (string-intersperse top-areas " "))
  (let* ((resolved-path (sauth-common:resolve-path ext-path base-path-list top-areas )))
           ;(print resolved-path)
           (if (not (equal? resolved-path #f))
           (if (null? resolved-path) 
             (print (string-intersperse top-areas " "))
           (let* ((target-path (sauth-common:get-target-path  base-path-list  ext-path top-areas base-path)))
                (print target-path)
                (if (not (equal? target-path #f))
                (begin 
                (cond
		  ((null? tail-cmd-list)
		     (run (pipe
      	      	      (ls "-lrt" ,target-path))))
		  ((not (equal? (car tail-cmd-list) "|"))
                         (print "ls cmd cannot accept " (string-join tail-cmd-list) " as an argument!!"))
                  (else  
                    (run (pipe
      	      	      (ls "-lrt" ,target-path)
                      (begin (system (string-join (cdr tail-cmd-list))))))
      )
)))
))))))

;; Copyright 2006-2013, Matthew Welland.
;; 
;;  This program is made available under the GNU GPL version 2.0 or
;;  greater. See the accompanying file COPYING for details.
;; 
;;  This program is distributed WITHOUT ANY WARRANTY; without even the
;;  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
;;  PURPOSE.

(use defstruct)
(use scsh-process)

(use srfi-18)
(use srfi-19)
(use refdb)

(use sql-de-lite srfi-1 posix regex regex-case srfi-69)
(declare (uses common))

(declare (uses configf))
(declare (uses margs))
(declare (uses megatest-version))

(include "megatest-fossil-hash.scm")
;;; please create this file before using sautherise. For sample file is avaliable sample-sauth-paths.scm. 
(include "sauth-paths.scm")
(include "sauth-common.scm")

;;
;; GLOBALS
;;
(define *verbosity* 1)
(define *logging* #f)
(define *exe-name* (pathname-file (car (argv))))
(define *sretrieve:current-tab-number* 0)
(define *args-hash* (make-hash-table))
(define sauthorize:help (conc "Usage: " *exe-name* " [action [params ...]]

  list                   		 			: list areas $USER's can access
  log                    		 			: get listing of recent activity.
  sauth  list-area-user <area code> 			: list the users that can access the area.
  sauth open <path> --group <grpname>                      : Open up an area. User needs to be the owner of the area to open it. 
              --code <unique short identifier for an area> 
              --retrieve|--publish 
  sauth grant <username> --area <area identifier>          : Grant permission to read or write to a area that is alrady opend up.    
             --expiration yyyy/mm/dd --retrieve|--publish 
             [--restrict <comma separated directory names> ]  
  sauth read-shell <area identifier>                       :  Open sretrieve shell for reading.  
  sauth write-shell <area identifier>                      :  Open spublish shell for writing.
   
Part of the Megatest tool suite.
Learn more at http://www.kiatoa.com/fossils/megatest

Version: " megatest-fossil-hash)) ;; "

;;======================================================================
;; RECORDS
;;======================================================================

;;======================================================================
;; DB
;;======================================================================

;; replace (strftime('%s','now')), with datetime('now'))
(define (sauthorize:initialize-db db)
  (for-each
   (lambda (qry)
     (exec (sql db qry)))
   (list 
    "CREATE TABLE IF NOT EXISTS actions
         (id           INTEGER PRIMARY KEY,
          cmd       TEXT NOT NULL,
          user_id      INTEGER NOT NULL,
          datetime     TIMESTAMP DEFAULT (datetime('now','localtime')),
          area_id      INTEGER NOT NULL,
          comment      TEXT DEFAULT '' NOT NULL,
          action_type  TEXT NOT NULL);"
        "CREATE TABLE IF NOT EXISTS users
         (id           INTEGER PRIMARY KEY,
          username     TEXT NOT NULL,
          is_admin     TEXT NOT NULL,
          datetime     TIMESTAMP DEFAULT (datetime('now','localtime'))
          );" 
          "CREATE TABLE IF NOT EXISTS areas
         (id           INTEGER PRIMARY KEY,
          basepath     TEXT NOT NULL,
          code         TEXT NOT NULL,
          exe_name     TEXT NOT NULL,
          datetime     TIMESTAMP DEFAULT (datetime('now','localtime'))
          );" 
         "CREATE TABLE IF NOT EXISTS permissions
         (id              INTEGER PRIMARY KEY,
          access_type     TEXT NOT NULL,
          user_id         INTEGER NOT NULL,
          datetime        TIMESTAMP DEFAULT (datetime('now','localtime')),
          area_id         INTEGER NOT NULL,
          restriction     TEXT DEFAULT '' NOT NULL,
          expiration       TIMESTAMP DEFAULT NULL);"
    )))




(define (get-access-type args)
   (let loop ((hed (car args))
		 (tal (cdr args)))
                   (cond
                   ((equal? hed "--retrieve")
                      "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
               (if (equal? group "none")
                 (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)) 
          (set! name (conc (current-user-name) "_" group))
          (begin
            (print "You cannot open areas that you dont own!!")  
             (exit 1)))))
name))

;check if a paths/codes are vaid and if area is alrady open  
(define (open-area group path code access-type)
   (let* ((exe-name (get-exe-name path group))
           (path-obj (get-obj-by-path path))
           (code-obj (get-obj-by-code code)))
           ;(print path-obj)   
          (cond
            ((not (null? path-obj))
                (if (equal? code (car path-obj))
                  (begin
                     (if (equal? exe-name (cadr path-obj))
                        (begin
                            (if (not (exe-exist exe-name  access-type))
                                 (copy-exe access-type exe-name group)
                                 (begin 
                                  (print "Area already open!!")
                                  (exit 1))))   
			(begin
                           (if (not (exe-exist exe-name  access-type))
                                 (copy-exe access-type exe-name group))
                           ;; update exe-name  in db 
                      (sauthorize:db-do   (lambda (db)
                         (sauthorize:db-qry db (conc "update areas set exe_name = '" exe-name "' where id = " (caddr path-obj)))))
                        )))
                   (begin
                       (print "Path " path " is registered with --code " (car path-obj) ". To open this area please execute following cmd: \n  sauthorize open " path " --group " group " --code " (car path-obj) " --" access-type )
                       (exit 1))))
                      
            ((not (null? code-obj))
                   (print "Code " code " is used for diffrent path. Please try diffrent value of --code" ) 
                   (exit 1))
            (else
               ; (print (exe-exist exe-name  access-type))
                (if (not (exe-exist exe-name  access-type))
                        (copy-exe access-type exe-name group))
                (sauthorize:db-do   (lambda (db)
                ;(print (conc "insert into areas (code, basepath, exe_name) values ('" code "', '" path "', '" exe-name "') ")) 
             (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)
                    #t)    
                   ((null? tal)
                      #f)
                   (else 
		  	(loop (car tal)(cdr tal))))))

;create executables with appropriate suids
(define (sauthorize:open user path group code access-type)
   (let* ((gpid (group-information group))
         (req_grpid (if (equal? group "none")
                      group 
                      (if (equal? gpid #f)
                           #f      
                     (caddr gpid))))
         (current-grp-list (get-groups))
         (valid-grp (if (equal? group "none")
                     group
                    (is-group-washed req_grpid current-grp-list))))
   (if (and (not (equal? group "none")) (equal? valid-grp #f ))
       (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 
       ;(print "here")   
       (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))
           (auser-obj (get-user auser)) 
           (user-obj (get-user guser)))
          
        (if (null? user-obj)
           (begin
            (sauthorize:db-do   (lambda (db)
             (sauthorize:db-qry db (conc "insert into users (username, is_admin) values ('" guser "', 'no') "))))
             (set! user-obj (get-user guser))))
        (let* ((perm-obj (get-perm (car user-obj) (car area-obj))))
          (if(null? perm-obj)
          (begin   
            ;; insert permissions
            (sauthorize:db-do   (lambda (db)
            (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 ", "))
	     (exit 1)))
       (let* ((remargs     (args:get-args args '("--area" "--expiration" "--restrict") '() args:arg-hash 0))
              (guser     (car args))
	      (restrict         (or (args:get-arg "--restrict") ""))
              (area         (or (args:get-arg "--area") ""))  
              (exp-date        (or (args:get-arg "--expiration") ""))
              (access-type (get-access-type remargs)))
	; (print  "version " guser " restrict " restrict )
        ; (print "area " area " exp-date " exp-date " access-type " access-type)
        (cond
           ((equal? guser "")
              (print "Username not found!! Try \"sauthorize help\" for useage ")
               (exit 1))   
           ((equal? area "")
              (print "Area 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)) 
           ((equal? exp-date "")
              (print "Date of expiration not found!! Try \"sauthorize help\" for useage ")
              (exit 1)))
           (if (not (area-exists area))
              (begin
              (print "Area does not exisit!!")
              (exit 1)))   
           (if (can-grant-perm username access-type area)
	   (begin
             (print "calling sauthorize:grant ") 
              (sauthorize:grant username guser area exp-date access-type restrict))   
           (begin
              (print "User " username " does not have permission to grant permissions to area " area "!!")
              (exit 1)))))
       ((list-area-user)
          (if (not (equal? (length args) 1))
              (begin
              (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 Writing!!")
              (exit 1))) 
              (sauthorize:do-as-calling-user
             (lambda ()
                (run-cmd (conc *exe-path* "/publish/" (cadr code-obj) ) (list "shell" area))))))
      ((publish)
          (if (< (length args) 2)
              (begin
              (print "Missing argument to publish. \n publish <action> <area> [opts] ") 
              (exit 1)))
           (let* ((action (car args))
                  (area (cadr args))
                  (cmd-args (cddr 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 writing!!")
              (exit 1))) 
              (sauthorize:do-as-calling-user
             (lambda ()
                (run-cmd (conc *exe-path* "/publish/" (cadr code-obj) ) (append (list action area ) cmd-args))))))
      
     ((retrieve)
          (if (< (length args) 2)
              (begin
              (print "Missing argument to publish. \n publish <action> <area> [opts] ") 
              (exit 1)))
           (let* ((action (car args))
                  (area (cadr args))
                  (cmd-args (cddr 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) ) (append (list action area ) cmd-args))))))

 
 
      ((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)))
         (let* ((remargs     (args:get-args args '("--group" "--code") '() args:arg-hash 0))
              (path     (car args))
	      (group         (or (args:get-arg "--group") ""))
              (area         (or (args:get-arg "--code") ""))  
              (access-type (get-access-type remargs)))
              (cond
                ((equal? path "")
                  (print "path not found!! Try \"sauthorize help\" for useage ")
                  (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)))
         ((area-admin)
           (let* ((usr (car args))
                  (usr-obj (get-user usr))
                  (user-id (car (get-user username))))
           
                (if (is-admin  username)
                (begin
                  ; (print usr-obj) 
                  (if (null? usr-obj)
                    (begin
                        (sauthorize:db-do   (lambda (db)
              ;(print (conc "INSERT INTO users (username,is_admin) VALUES ( '" usr "', 'read-admin' )"))
             (sauthorize:db-qry db (conc "INSERT INTO users (username,is_admin) VALUES ( '" usr "', 'read-admin' )")))))
               (begin
                ; (print (conc "update users set is_admin = 'no' where id = " (car usr-obj) ))
                 (sauthorize:db-do   (lambda (db)
                (sauthorize:db-qry db (conc "update users set is_admin = 'read-admin' where id = " (car usr-obj)))))))
                (print "User " usr " is updated with area-admin access!"))
                (print "Admin only function"))
                (sauthorize:db-do   (lambda (db)
             (sauthorize:db-qry db (conc "INSERT INTO actions (cmd,user_id,area_id,action_type ) VALUES ('area-admin " usr " ', " user-id ",0, 'area-admin ')" )))))) 

         ((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
    (cond
     ;; one-word commands
     ((eq? (length rema) 1)
      (case (string->symbol (car rema))
	((help -h -help --h --help)
	 (print sauthorize:help))
	((list)
            
          (sauthorize:db-do  (lambda (db)
				     (print "My Area accesses: ")
				     (query (for-each-row
					     (lambda (row)
                                               (let* ((exp-date (car row)))
                                                (if  (is-access-valid  exp-date)     
					           (apply print (intersperse (cdr row) " | "))))))
					    (sql db (conc "SELECT permissions.expiration, areas.basepath, areas.code, permissions.access_type  FROM users, areas, permissions where permissions.user_id = users.id and permissions.area_id = areas.id and users.username = '" username "'"))))))
         
	((log)
	 (sauthorize:db-do  (lambda (db)
				     (print "Logs : ")
				     (query (for-each-row
					     (lambda (row)
                                                   
					       (apply print (intersperse row " | "))))
					    (sql db "SELECT actions.cmd, users.username, actions.action_type, actions.datetime, areas.code  FROM actions, users, areas where actions.user_id = users.id and actions.area_id = areas.id ")))))
	(else
	 (print "ERROR: Unrecognised command. Try \"sauthorize help\""))))
     ;; multi-word commands
     ((null? rema)(print sauthorize:help))
     ((>= (length rema) 2)
      (apply sauthorize:process-action username (car rema)(cdr rema)))
     (else (debug:print 0 "ERROR: Unrecognised command. Try \"sauthorize help\"")))))

(main)


      

;; Copyright 2006-2013, Matthew Welland.
;; 
;;  This program is made available under the GNU GPL version 2.0 or
;;  greater. See the accompanying file COPYING for details.
;; 
;;  This program is distributed WITHOUT ANY WARRANTY; without even the
;;  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
;;  PURPOSE.

(use defstruct)
(use scsh-process)

(use refdb)


;; (use ssax)
;; (use sxml-serializer)
;; (use sxml-modifications)
;; (use regex)
;; (use srfi-69)
;; (use regex-case)
;; (use posix)
;; (use json)
;; (use csv)
(use srfi-18)
(use srfi-19)

(use format)

;; (require-library ini-file)
;; (import (prefix ini-file ini:))

(use sql-de-lite srfi-1 posix regex regex-case srfi-69)
;; (import (prefix sqlite3 sqlite3:))

;; (declare (uses db))
;; (declare (uses synchash))
;; (declare (uses server))
(declare (uses megatest-version))
;; (declare (uses tbd))

(include "megatest-fossil-hash.scm")
;;; please create this file before using sautherise. For sample file is avaliable sample-sauth-paths.scm. 
(include "sauth-paths.scm")
(include "sauth-common.scm")


;;
;; GLOBALS
;;
(define *spublish:current-tab-number* 0)
(define *args-hash* (make-hash-table))
(define spublish:help (conc "Usage: spublish  [action [params ...]]

  ls       <area>              : list contents of target area
  cp|publish <area> <src file> <destination>      : copy file to target area
  mkdir <area> <dir name>       : maks directory in target area  
  rm <area> <file>              : remove file <file> from target area
  ln <area> <target> <link name> : creates a symlink

 
  options:

    -m \"message\"        : describe what was done
Note: All the target locations relative to base path 
Part of the Megatest tool suite.
Learn more at http://www.kiatoa.com/fossils/megatest

Version: " megatest-fossil-hash)) ;; "

;;======================================================================
;; RECORDS
;;======================================================================

;;======================================================================
;; DB
;;======================================================================

(define *default-log-port* (current-error-port))
(define *verbosity*         1)

(define (spublish:initialize-db db)
  (for-each
   (lambda (qry)
     (exec (sql db qry)))
   (list 
    "CREATE TABLE IF NOT EXISTS actions

     configdat
     (lambda (db)
       (spublish:register-action db "cp" submitter source-path comment)))
    (let* (;; (target-path (configf:lookup "settings" "target-path"))
	   (th1         (make-thread
			 (lambda ()
			   (file-copy source-path targ-path #t))
                            (print " ... file " targ-path " copied to " targ-path)
			 ;; (let ((pid (process-run "cp" (list source-path target-dir))))
			 ;;   (process-wait pid)))
			 "copy thread"))
	   (th2         (make-thread
			 (lambda ()
			   (let loop ()
			     (thread-sleep! 15)

      (let loop ((hed (car paths))
		 (tal (cdr paths)))
	(if (file-exists? (conc hed "/" name))
	    hed
	    (if (null? tal)
		#f
		(loop (car tal)(cdr tal)))))))
;;========================================================================
;;Shell 
;;========================================================================
(define (spublish:get-accessable-projects  area)
   (let* ((projects `()))
     ;  (print "in spublish:get-accessable-projects") 
        ;(print (spublish:has-permission area))
        (if (spublish:has-permission area)
               (set! projects (cons area projects))
               (begin
                 (print "User cannot access area " area "!!")  
                (exit 1))) 
       ;  (print "exiting spublish:get-accessable-projects")
    projects))

;; function to find sheets to which use has access 
(define (spublish:has-permission  area)
  ;(print "in spublish:has-permission")
  (let* ((username     (current-user-name))
        (ret-val #f))
  (cond
   ((equal? (is-admin username) #t)
     (set! ret-val #t))
    ((equal? (is-user "publish" username area) #t)
     (set! ret-val #t))
   ((equal? (is-user "writer-admin" username area) #t) 
     (set! ret-val #t))

   ((equal? (is-user "area-admin" username area) #t) 
     (set! ret-val #t))
   (else  
    (set! ret-val #f)))
  ;  (print ret-val)
     ret-val))

(define (is_directory target-path) 
  (let* ((retval #f))
  (sauthorize:do-as-calling-user
    	(lambda ()
          ;(print (current-effective-user-id) ) 
          (if (directory? target-path)
               (set! retval  #t))))
             ;(print (current-effective-user-id))
     retval)) 


(define (spublish:shell-cp src-path target-path)  
  (cond
   ((not (file-exists? target-path))
	(print "ERROR: target Directory " target-path " does not exist!!"))
   ((not (file-exists? src-path))
    (print "Error: Source path " src-path " does not exist!!" ))
   (else
     (if (is_directory src-path) 
        (begin
            (let* ((parent-dir src-path)
                   (start-dir target-path))
                 ;(print "parent-dir " parent-dir " start-dir " start-dir)   
                 (run (pipe
                   (begin (system (conc "cd " parent-dir " ;tar chf - ." )))
                   (begin (change-directory start-dir)
                          ;(print "123")
                          (run-cmd "tar" (list "xf" "-")))))
                          (print "Copied data to " start-dir))) 
        (begin
           (let*((parent-dir (pathname-directory src-path))
                  (start-dir target-path)
                (filename (if  (pathname-extension src-path)  
                                      (conc(pathname-file src-path) "." (pathname-extension src-path))
                                      (pathname-file src-path))))
                ;(print "parent-dir " parent-dir " start-dir " start-dir)   
                 (run (pipe
                   (begin (system (conc "cd " parent-dir ";tar chf - " filename )))
                   (begin (change-directory start-dir)
                          (run-cmd "tar" (list "xf" "-")))))
                          (print "Copied data to " start-dir)))))))


(define (spublish:shell-mkdir targ-path)
    (if (file-exists? targ-path)
	(begin
	  (print "ERROR: target Directory " targ-path " already exist!!"))
        (let* ((th1         (make-thread
			 (lambda ()
			   (create-directory targ-path #t)
			   (print " ... dir " targ-path " created"))
			 "mkdir thread"))
	   (th2         (make-thread
			 (lambda ()
			   (let loop ()
			     (thread-sleep! 15)
			     (display ".")
			     (flush-output)
			     (loop)))
			 "action is happening thread")))
      (thread-start! th1)
      (thread-start! th2)
      (thread-join! th1)
    (cons #t "Successfully saved data"))))
 

(define (spublish:shell-rm targ-path)
    (if (not (file-exists? targ-path))
	(begin
	  (print "ERROR: target path " targ-path " does not exist!!"))
        (let* ((th1         (make-thread
			 (lambda ()
			   (delete-file  targ-path )
			   (print " ... path " targ-path " deleted"))
			 "rm thread"))
	   (th2         (make-thread
			 (lambda ()
			   (let loop ()
			     (thread-sleep! 15)
			     (display ".")
			     (flush-output)
			     (loop)))
			 "action is happening thread")))
      (thread-start! th1)
      (thread-start! th2)
      (thread-join! th1)
    (cons #t "Successfully saved data"))))

(define (spublish:shell-ln src-path target-path sub-path)
   (if (not (file-exists? sub-path))
	 (print "ERROR: Path " sub-path " does not exist!! cannot proceed with link creation!!")
        (begin  
          (if (not (file-exists? src-path))
  	    (print "ERROR: Path " src-path " does not exist!! cannot proceed with link creation!!")
            (begin
                (if (file-exists? target-path)
                   (print "ERROR: Path " target-path "already exist!! cannot proceed with link creation!!")
                   (begin 
                      (create-symbolic-link src-path target-path  )
			   (print " ... link " target-path " created"))))))))
 
(define (spublish:shell-help)
(conc "Usage: [action [params ...]]

  ls    [target path]               	  : list contents of target area.
  cd    <target path> 	     	          : To change the current directory within the sretrive shell. 
  pwd				     	  : Prints the full pathname of the current directory within the sretrive shell.
  mkdir <path>                            : creates directory. Note it does not create's a path recursive manner.
  rm <target path>                        : removes files and emoty directories   
  cp <src> <target path>                  : copy a file/dir to target path. if src is a dir it automatically makes a recursive copy.
  ln TARGET LINK_NAME                     : creates a symlink      
Part of the Megatest tool suite.
Learn more at http://www.kiatoa.com/fossils/megatest

Version: " megatest-fossil-hash)
)	

(define (toplevel-command . args) #f)

(define (spublish:shell area)
 ; (print area)
  (use readline)
  (let* ((path      '())
	 (prompt    "spublish> ")
	 (args      (argv))
         (usr (current-user-name) )   
         (top-areas (spublish:get-accessable-projects area))
         (close-port     #f)
         (area-obj  (get-obj-by-code area))
         (user-obj (get-user usr)) 
         (base-path (if (null? area-obj) 
                         "" 
                        (caddr (cdr area-obj))))      
	 (iport     (make-readline-port prompt)))
        ;(print base-path) 
        (if (null? area-obj)
          (begin 
             (print "Area " area " does not exist")
          (exit 1)))
        ; (print "here")    
	(let loop ((inl (read-line iport)))
	  (if (not (or (or (eof-object? inl)
		       (equal? inl "exit")) (port-closed? iport)))
	      (let* ((parts (string-split inl))
		     (cmd   (if (null? parts) #f (car parts))))
		(if (and (not cmd) (not (port-closed? iport)))
		    (loop (read-line))
		    (case (string->symbol cmd)
		      ((cd)
		       (if (> (length parts) 1) ;; have a parameter
                           (begin
                             (let*((arg (cadr parts))
                                   (resolved-path (sauth-common:resolve-path  arg path top-areas))
                                   (target-path (sauth-common:get-target-path path  arg top-areas base-path)))
                                 (if (not (equal? target-path #f))
                                 (if (or (equal? resolved-path #f) (not (file-exists? target-path)))    
                                 (print "Invalid argument " arg ".. ")
                                  (begin      
			            (set! path resolved-path)
                                     (sauthorize:do-as-calling-user
                              (lambda ()
			    (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "\"" inl "\"") (number->string (car user-obj))  (number->string (caddr area-obj))  "cd"))))
                                  )))))  
   			   (set! path '())))
                      ((pwd)
                         (if (null? path)
                           (print "/")  
                           (print "/" (string-join path "/")))) 
		      ((ls)
		       (let* ((thepath (if (> (length parts) 1) ;; have a parameter
					   (cdr parts)
					   `()))
			      (plen    (length thepath)))
                         (cond
			  ((null? thepath)
                           (sauth-common:shell-ls-cmd path "" top-areas base-path  '())
                            (sauthorize:do-as-calling-user
                              (lambda ()
			    (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "\"" inl "\"") (number->string (car user-obj))  (number->string (caddr area-obj))  "ls"))))   )
			  ((< plen 2)
                            (sauth-common:shell-ls-cmd path  (car thepath) top-areas base-path '())
                              (sauthorize:do-as-calling-user
                              (lambda ()
			    (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "\"" inl "\"") (number->string (car user-obj))  (number->string (caddr area-obj))  "ls")))))
                          (else 
                            (if (equal? (car thepath) "|")
                              (sauth-common:shell-ls-cmd path "" top-areas base-path thepath)
                              (sauth-common:shell-ls-cmd path  (car thepath) top-areas base-path (cdr thepath)))
                           (sauthorize:do-as-calling-user
                              (lambda ()
			    (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "\"" inl "\"") (number->string (car user-obj))  (number->string (caddr area-obj))  "ls"))))))))
                       ((mkdir)
                         (let* ((thepath (if (> (length parts) 1) ;; have a parameter
				   (cdr parts)
				   `()))
			      (plen    (length thepath)))
                         (cond
                          ((null? thepath)
                            (print "mkdir takes one argument"))
                          ((< plen 2) 
                            (let*((mk-path (cadr parts))
                                  (resolved-path (sauth-common:resolve-path  mk-path path top-areas))
                                  (target-path (sauth-common:get-target-path path  mk-path top-areas base-path)))
                              (if (not (equal? target-path #f))
                                 (if (equal? resolved-path #f)     
                                 (print "Invalid argument " mk-path ".. ")
                                  (begin 
                                      (spublish:shell-mkdir target-path)   
                                      (sauthorize:do-as-calling-user
                              (lambda ()
			    (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "\"" inl "\"") (number->string (car user-obj))  (number->string (caddr area-obj))  "mkdir")))))))
		       )))))
                       ((rm)
                          (let* ((thepath (if (> (length parts) 1) ;; have a parameter
				   (cdr parts)
				   `()))
			      (plen    (length thepath)))
                         (cond
                          ((null? thepath)
                            (print "rm takes one argument"))
                          ((< plen 2) 
                            (let*((rm-path (cadr parts))
                                  (resolved-path (sauth-common:resolve-path  rm-path path top-areas))
                                  (target-path (sauth-common:get-target-path path  rm-path top-areas base-path)))
                              (if (not (equal? target-path #f))
                                 (if (equal? resolved-path #f)     
                                 (print "Invalid argument " rm-path ".. ")
                                  (begin 
                                      (spublish:shell-rm target-path)   
                                      (sauthorize:do-as-calling-user
                              (lambda ()
			    (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "\"" inl "\"") (number->string (car user-obj))  (number->string (caddr area-obj))  "rm")))))))
		       )))))

                      ((cp publish)
                          (let* ((thepath (if (> (length parts) 1) ;; have a parameter
				   (cdr parts)
				   `()))
			      (plen    (length thepath)))
                         (cond
                          ((or (null? thepath) (< plen 2)) 
                            (print "cp takes two argument"))
                          ((< plen 3) 
                            (let*((src-path (car thepath))
                                  (dest-path (cadr thepath))   
                                  (resolved-path (sauth-common:resolve-path  dest-path path top-areas))
                                  (target-path (sauth-common:get-target-path path  dest-path top-areas base-path)))
                              (if (not (equal? target-path #f))
                                 (if (equal? resolved-path #f)     
                                 (print "Invalid argument " dest-path ".. ")
                                  (begin 
                                      (spublish:shell-cp src-path target-path)   
                                      (sauthorize:do-as-calling-user
                              (lambda ()
			    (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "\"" inl "\"") (number->string (car user-obj))  (number->string (caddr area-obj))  "cp")))))))
		       )))))
                      ((ln)
                           (let* ((thepath (if (> (length parts) 1) ;; have a parameter
				   (cdr parts)
				   `()))
			      (plen    (length thepath)))
                         (cond
                          ((or (null? thepath) (< plen 2)) 
                            (print "ln takes two argument"))
                          ((< plen 3) 
                            (let*((src-path (car thepath))
                                  (dest-path (cadr thepath))   
                                  (resolved-path (sauth-common:resolve-path  dest-path path top-areas))
                                  (target-path (sauth-common:get-target-path path  dest-path top-areas base-path))
                                  (sub-path (conc "/" (string-reverse (string-join (cdr (string-split (string-reverse  target-path) "/")) "/")))))
                              (if (not (equal? target-path #f))
                                 (if (equal? resolved-path #f)     
                                 (print "Invalid argument " dest-path ".. ")
                                  (begin 
                                      (spublish:shell-ln src-path target-path sub-path)   
                                      (sauthorize:do-as-calling-user
                              (lambda ()
			    (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "\"" inl "\"") (number->string (car user-obj))  (number->string (caddr area-obj))  "ln")))))))
		       )))))  
                      ((exit)
                          (print "got exit"))  
                      ((help)
                          (print (spublish:shell-help)))
		      (else 
		       (print "Got command: " inl))))
                 (loop (read-line iport)))))))


;;======================================================================
;; MAIN
;;======================================================================

(define (spublish:load-config exe-dir exe-name)
  (let* ((fname   (conc exe-dir "/." exe-name ".config")))
    ;; (ini:property-separator-patt " *  *")
    ;; (ini:property-separator #\space)
    (if (file-exists? fname)
	;; (ini:read-ini fname)
	(read-config fname #f #t)
	(make-hash-table))))

(define (spublish:process-action action . args)
  ;(print args)
  (let* ((usr          (current-user-name))
         (user-obj (get-user usr)) 
         (area   (car args))
         (area-obj  (get-obj-by-code area))
         (top-areas (spublish:get-accessable-projects area))  
         (base-path (if (null? area-obj) 
                         "" 



                        (caddr (cdr area-obj))))   
         (remargs (cdr args)))
     (if (null? area-obj)
          (begin 




             (print "Area " area " does not exist")
          (exit 1)))
    (case (string->symbol action)
      ((cp publish)
       (if (< (length remargs) 2)
	   (begin 
	     (print "ERROR: Missing arguments; spublish <area> <src file> <destination>" )
	     (exit 1)))
       (let* ((filter-args     (args:get-args args '("-m") '() args:arg-hash 0))

              (src-path-in (car filter-args))
              (dest-path (cadr filter-args))
	      (src-path    (with-input-from-pipe
			    (conc "readlink -f " src-path-in)
			    (lambda ()
			      (read-line))))
	      (msg         (or (args:get-arg "-m") ""))
              (resolved-path (sauth-common:resolve-path  (conc area "/" dest-path) `() top-areas))
              (target-path (sauth-common:get-target-path `()  (conc area "/" dest-path) top-areas base-path)))
 	     (if (not (equal? target-path #f))

                 (if (equal? resolved-path #f)     

                    (print "Invalid argument " dest-path ".. ")
                    (begin 




                      (spublish:shell-cp src-path target-path)   
                      (sauthorize:do-as-calling-user
                      (lambda ()
		        (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "\" cp " src-path-in " " dest-path  "\"") (number->string (car user-obj))  (number->string (caddr area-obj))  "cp")))))))))   
      ((mkdir)
        (if (< (length remargs) 1)
          (begin 
	     (print "ERROR: Missing arguments; <area> <path>")
	     (exit 1)))
        (let* ((filter-args     (args:get-args args '("-m") '() args:arg-hash 0))
               (mk-path (car filter-args))
               (msg         (or (args:get-arg "-m") ""))
               (resolved-path (sauth-common:resolve-path  mk-path (list area) top-areas))
               (target-path (sauth-common:get-target-path (list area)  mk-path top-areas base-path))) 
               (print "attempting to create directory " mk-path  )
               (if (not (equal? target-path #f))

                 (if (equal? resolved-path #f)     
                   (print "Invalid argument " mk-path ".. ")
                   (begin 





                     (spublish:shell-mkdir target-path)   

                     (sauthorize:do-as-calling-user
                       (lambda ()
		        (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "\" mkdir " mk-path  "\"") (number->string (car user-obj))  (number->string (caddr area-obj))  "mkdir")))))))))  
      ((ln) 
        (if (< (length remargs) 2)
          (begin 
	     (print "ERROR: Missing arguments;  <area> <target> <link name>" )
	     (exit 1)))
        (let* ((filter-args     (args:get-args args '("-m") '() args:arg-hash 0))
              (src-path (car filter-args))
              (dest-path (cadr filter-args))   
              (resolved-path (sauth-common:resolve-path  dest-path (list area) top-areas))
              (target-path (sauth-common:get-target-path  (list area)  dest-path top-areas base-path))
              (sub-path (conc "/" (string-reverse (string-join (cdr (string-split (string-reverse  target-path) "/")) "/")))))
               (if (not (equal? target-path #f))
                  (if (equal? resolved-path #f)     
                    (print "Invalid argument " dest-path ".. ")
                    (begin 

                   (spublish:shell-ln src-path target-path sub-path)   

                  (sauthorize:do-as-calling-user



                 (lambda ()


		   (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "\" ln " src-path " " dest-path  "\"") (number->string (car user-obj))  (number->string (caddr area-obj))  "ln")))))))))
      ((rm)
       (if (< (length remargs) 1)
	   (begin 
	     (print "ERROR: Missing arguments; <area> <path> ")
	     (exit 1)))
       (let* ((filter-args  (args:get-args args '("-m") '() args:arg-hash 0))
              (rm-path (car filter-args))
              (resolved-path (sauth-common:resolve-path  rm-path (list area) top-areas))
              (target-path (sauth-common:get-target-path (list area)  rm-path top-areas base-path)))
	       (if (not (equal? target-path #f))
                                 (if (equal? resolved-path #f)     
                                 (print "Invalid argument " rm-path ".. ")
                                  (begin 
                                      (spublish:shell-rm target-path)   
                                      (sauthorize:do-as-calling-user

                              (lambda ()
			    (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "\" rm " rm-path "\"") (number->string (car user-obj))  (number->string (caddr area-obj))  "rm")))))))))
      ((shell)
          (if (< (length args) 1)
             (begin 
	     (print  "ERROR: Missing arguments area!!" )
	     (exit 1))





















             (spublish:shell area))) 













      (else (print "Unrecognised command " action)))))
  
;; ease debugging by loading ~/.dashboardrc - REMOVE FROM PRODUCTION!
;; (let ((debugcontrolf (conc (get-environment-variable "HOME") "/.spublishrc")))
;;   (if (file-exists? debugcontrolf)
;;       (load debugcontrolf)))

(define (main)
  (let* ((args      (argv))
	 (prog      (car args))
	 (rema      (cdr args))
	 (exe-name  (pathname-file (car (argv)))))



    (cond
     ;; one-word commands
     ((eq? (length rema) 1)
      (case (string->symbol (car rema))
	((help -h -help --h --help)
	 (print spublish:help))













	(else
	 (print "ERROR: Unrecognised command. Try \"spublish help\""))))
     ;; multi-word commands
     ((null? rema)(print spublish:help))
     ((>= (length rema) 2)
      (apply spublish:process-action (car rema)(cdr rema)))
     (else (print "ERROR: Unrecognised command2. Try \"spublish help\"")))))

(main)

;; Copyright 2006-2013, Matthew Welland.
;; 
;;  This program is made available under the GNU GPL version 2.0 or
;;  greater. See the accompanying file COPYING for details.
;; 
;;  This program is distributed WITHOUT ANY WARRANTY; without even the
;;  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
;;  PURPOSE.

(use defstruct)
(use scsh-process)

(use srfi-18)



(use srfi-19)



;;(use utils)


;;(use format)
(use refdb)
;; (require-library ini-file)
;; (import (prefix ini-file ini:))

(use sql-de-lite srfi-1 posix regex regex-case srfi-69)
;; (import (prefix sqlite3 sqlite3:))
;; 
(declare (uses common))

(declare (uses configf))



(declare (uses margs))


(declare (uses megatest-version))
 

(include "megatest-fossil-hash.scm")
;;; please create this file before using sautherise. For sample file is avaliable sample-sauth-paths.scm. 
(include "sauth-paths.scm")
(include "sauth-common.scm")

(define (toplevel-command . args) #f)
(use readline)


;;
;; GLOBALS
;;
(define *verbosity* 1)
(define *logging* #f)
(define *exe-name* (pathname-file (car (argv))))
(define *sretrieve:current-tab-number* 0)
(define *args-hash* (make-hash-table))
(define sretrieve:help (conc "Usage: " *exe-name* " [action [params ...]]

  ls   <area>                        : list contents of target area
  get  <area>  <reletive path>       : retrieve path to the data within <area>
     -m \"message\"       : why retrieved?


  shell  <area>                   : start a shell-like interface

Part of the Megatest tool suite.
Learn more at http://www.kiatoa.com/fossils/megatest

Version: " megatest-fossil-hash)) ;; "

;;======================================================================

          bundle       TEXT NOT NULL,
          release      TEXT NOT NULL,
          status       TEXT NOT NULL,
          event_date   TEXT NOT NULL);"
    )))

(define (sretrieve:register-action db action submitter source-path comment)
 ; (print "(sretrieve:register-action db " db " action " action " submitter " submitter " source-path " source-path " comment " comment)
  (exec (sql db "INSERT INTO actions (action,retriever,srcpath,comment)
                 VALUES(?,?,?,?)")
	action
	submitter
	source-path
	(or comment "")))

;; (call-with-database
;;  (lambda (db)
;;   (set-busy-handler! db (busy-timeout 10000)) ; 10 second timeout
;;   ...))

;; Create the sqlite db
(define (sretrieve:db-do configdat proc) 

  (let ((path (configf:lookup configdat "database" "location")))
    (if (not path)
	(begin
	  (debug:print 0 "[database]\nlocation /some/path\n\n Is missing from the config file!")
	  (exit 1)))
    (if (and path
	     (directory? path)
	     (file-read-access? path))
	(let* ((dbpath    (conc path "/" *exe-name* ".db"))
	       (writeable (file-write-access? dbpath))
	       (dbexists  (file-exists? dbpath)))
	  (handle-exceptions
	   exn
	   (begin
	     (debug:print 2 "ERROR: problem accessing db " dbpath
			  ((condition-property-accessor 'exn 'message) exn))
	     (exit 1))
            ;;(debug:print 0 "calling proc " proc "db path " dbpath )
	   (call-with-database
            dbpath
	    (lambda (db)
	       ;;(debug:print 0 "calling proc " proc " on db " db)
	      (set-busy-handler! db (busy-timeout 10000)) ;; 10 sec timeout
	      (if (not dbexists)(sretrieve:initialize-db db))
	      (proc db)))))
	(debug:print 0 "ERROR: invalid path for storing database: " path))))

;; copy in directory to dest, validation is done BEFORE calling this
;;
(define (sretrieve:get configdat retriever version comment)
  (let* ((base-dir  (configf:lookup configdat "settings" "base-dir"))
	 (datadir   (conc base-dir "/" version)))
    (if (or (not base-dir)
	    (not (file-exists? base-dir)))
	(begin
	  (debug:print 0 "ERROR: Bad configuration! base-dir " base-dir " not found")
	  (exit 1)))
    (print datadir)
    (if (not (file-exists? datadir))
	(begin
	  (debug:print 0 "ERROR: Bad version (" version "), no data found at " datadir "." )
	  (exit 1)))
    
    (sretrieve:db-do
     configdat
     (lambda (db)
       (sretrieve:register-action db "get" retriever datadir comment)))
      (sretrieve:do-as-calling-user

	     (process-execute "/bin/tar" (append (append (list  "chfv" "-") files) (list "--ignore-failed-read")))))
             (begin
               (let* ((parent-dir (pathname-directory datadir) )
                      (filename  (conc(pathname-file datadir) "." (pathname-extension datadir))))
                  (change-directory parent-dir)  
                  (process-execute "/bin/tar" (list "chfv" "-" filename))
             )))
))))



;; copy in file to dest, validation is done BEFORE calling this
;;
(define (sretrieve:cp configdat retriever file comment)
  (let* ((base-dir  (configf:lookup configdat "settings" "base-dir"))
         (allowed-sub-paths (configf:lookup configdat "settings" "allowed-sub-paths"))    
	 (datadir   (conc base-dir "/" file))
         (filename  (conc(pathname-file datadir) "." (pathname-extension datadir))))
    (if (or (not base-dir)
	    (not (file-exists? base-dir)))
	(begin
	  (debug:print 0 "ERROR: Bad configuration! base-dir " base-dir " not found")
	  (exit 1)))
    (print datadir)
    (if (not (file-exists? datadir))
	(begin
	  (debug:print 0 "ERROR: File  (" file "), not found at " base-dir "." )
	  (exit 1)))
    (if (directory? datadir)
	(begin
	  (debug:print 0 "ERROR: (" file ") is a dirctory!! cp cmd works only on files ." )
	  (exit 1)))
    (if(not (string-match (regexp  allowed-sub-paths) file))
        (begin
	  (debug:print 0 "ERROR: Access denied to file (" file ")!! " )
	  (exit 1)))
     
     (sretrieve:db-do
     configdat
     (lambda (db)
       (sretrieve:register-action db "cp" retriever datadir comment)))
      (sretrieve:do-as-calling-user
      ;;  (debug:print 0 "ph:  "(pathname-directory datadir)  "!! " )
       (change-directory (pathname-directory datadir))  
       ;;(debug:print 0 "ph: /bin/tar" (list "chfv" "-" filename) )
      (process-execute "/bin/tar" (list "chfv" "-" filename)))
      ))

;; ls in file to dest, validation is done BEFORE calling this
;;
(define (sretrieve:ls configdat retriever file comment)
  (let* ((base-dir  (configf:lookup configdat "settings" "base-dir"))
         (allowed-sub-paths (configf:lookup configdat "settings" "allowed-sub-paths"))    
	 (datadir   (conc base-dir "/" file))
         (filename  (conc(pathname-file datadir) "." (pathname-extension datadir))))
    (if (or (not base-dir)
	    (not (file-exists? base-dir)))
	(begin
	  (debug:print 0 "ERROR: Bad configuration! base-dir " base-dir " not found")
	  (exit 1)))
    (print datadir)
    (if (not (file-exists? datadir))
	(begin
	  (debug:print 0 "ERROR: File  (" file "), not found at " base-dir "." )
	  (exit 1)))
      (if(not (string-match (regexp  allowed-sub-paths) file))
        (begin
	  (debug:print 0 "ERROR: Access denied to file (" file ")!! " )
	  (exit 1)))
   
        (sretrieve:do-as-calling-user
        (lambda ()




	  (process-execute "/bin/ls" (list "-ls"  "-lrt" datadir ))
 ))))







(define (sretrieve:validate target-dir targ-mk)
  (let* ((normal-path (normalize-pathname targ-mk))
        (targ-path (conc target-dir "/" normal-path)))
    (if (string-contains   normal-path "..")
    (begin
      (debug:print 0 "ERROR: Path  " targ-mk " resolved outside target area "  target-dir )
      (exit 1)))

    (if (not (string-contains targ-path target-dir))
    (begin
      (debug:print 0 "ERROR: You cannot update data outside " target-dir ".")
      (exit 1)))
    (debug:print 0 "Path " targ-mk " is valid.")   
 ))


































































































(define (sretrieve:backup-move path)
  (let* ((trashdir  (conc (pathname-directory path) "/.trash"))
	 (trashfile (conc trashdir "/" (current-seconds) "-" (pathname-file path))))
    (create-directory trashdir #t)
    (if (directory? path)
	(system (conc "mv " path " " trashfile))

;;======================================================================

(define (sretrieve:do-as-calling-user proc)
  (let ((eid (current-effective-user-id))
        (cid (current-user-id)))
    (if (not (eq? eid cid)) ;; running suid
            (set! (current-effective-user-id) cid))
    ;; (debug:print 0 "running as " (current-effective-user-id))
    (proc)
    (if (not (eq? eid cid))
        (set! (current-effective-user-id) eid))))

(define (sretrieve:find name paths)
  (if (null? paths)
      #f

    (lambda ()
      (apply print args))))

;;======================================================================
;; SHELL
;;======================================================================


(define *refdb*     "/p/foundry/env/pkgs/chicken/4.10.0_ext/bin/refdb") 
(define *refdbloc*     "/nfs/site/disks/ch_ciaf_disk023/fdk_gwa_disk003/pjhatwal/fossil/megatest1.60/megatest/datashare-testing/sretrieve_configs") 

;; Create the sqlite db for shell
(define (sretrieve:shell-db-do path proc) 
    (if (not path)
	(begin
	  (debug:print 0 "[database]\nlocation /some/path\n\n Is missing from the config file!")
	  (exit 1)))
    (if (and path
	     (directory? path)
	     (file-read-access? path))
	(let* ((dbpath    (conc path "/" *exe-name* ".db"))
	       (writeable (file-write-access? dbpath))
	       (dbexists  (file-exists? dbpath)))
	  (handle-exceptions
	   exn
	   (begin
	     (debug:print 2 "ERROR: problem accessing db " dbpath
			  ((condition-property-accessor 'exn 'message) exn))
	     (exit 1))
            ;;(debug:print 0 "calling proc " proc "db path " dbpath )
	   (call-with-database
            dbpath
	    (lambda (db)
	       ;;(debug:print 0 "calling proc " proc " on db " db)
	      (set-busy-handler! db (busy-timeout 10000)) ;; 10 sec timeout
	      (if (not dbexists)(sretrieve:initialize-db db))
	      (proc db)))))
	(debug:print 0 "ERROR: invalid path for storing database: " path)))



;; function to find sheets to which use has access 
(define (sretrieve:has-permission  area)
  (let ((username     (current-user-name)))
  (cond
   ((is-admin username)
     #t)
   ((is-user "retrieve" username area) 
     #t)
    ((is-user "publish" username area) 
     #t)
   ((is-user "writer-admin" username area) 
     #t)
   ((is-user "read-admin" username area) 
     #t)
   ((is-user "area-admin" username area) 
     #t)
   (else  
    #f))))
 
    



(define (sretrieve:get-accessable-projects  area)
   (let* ((projects `()))
         
        (if (sretrieve:has-permission area)
               (set! projects (cons area projects))
               (begin
                 (print "User cannot access area " area "!!")  
                (exit 1))) 
   ; (print projects)
    projects))
		 
(define (sauth-common:shell-ls-cmd base-path-list ext-path top-areas base-path tail-cmd-list)
    (if (and (null? base-path-list) (equal? ext-path "") )
      (print (string-intersperse top-areas " "))
  (let* ((resolved-path (sauth-common:resolve-path ext-path base-path-list top-areas )))
           ;(print resolved-path)
           (if (not (equal? resolved-path #f))
           (if (null? resolved-path) 
             (print (string-intersperse top-areas " "))
           (let* ((target-path (sauth-common:get-target-path  base-path-list  ext-path top-areas base-path)))
                ;(print "Resolved path: " target-path)
                (if (symbolic-link? target-path)
                   (set! target-path (conc target-path "/"))) 
                (if (not (equal? target-path #f))
                (begin 
                (cond
		  ((null? tail-cmd-list)
		     (run (pipe
      	      	      (ls "-lrt" ,target-path))))
		  ((not (equal? (car tail-cmd-list) "|"))
                         (print "ls cmd cannot accept "(string-join tail-cmd-list) " as an argument!!"))
                  (else  
                    (run (pipe
      	      	      (ls "-lrt" ,target-path)
                      (begin (system (string-join (cdr tail-cmd-list))))))
      ))))))))))

(define (sretrieve:shell-cat-cmd base-pathlist ext-path top-areas base-path tail-cmd-list)
  (let* ((resolved-path (sauth-common:resolve-path ext-path base-pathlist top-areas ))
          (data "") )
         (if (not (equal? resolved-path #f))
           (if (null? resolved-path) 
             (print "Path could not be resolved!!")
           (let* ((target-path (sauth-common:get-target-path  base-pathlist  ext-path top-areas base-path)))
             (if (not (equal? target-path #f))
               (if (or (not (file-exists? target-path)) (directory? target-path))
               (print "Target path does not exist or is a directory!") 
               (begin 
                 (cond
		  ((null? tail-cmd-list)
		     (run (pipe
      	      	      (cat  ,target-path))))
		  ((not (equal? (car tail-cmd-list) "|"))
                         (print "cat cmd cannot accept "(string-join tail-cmd-list) " as an argument!!"))
                  (else  
                    (run (pipe
      	      	      (cat ,target-path)
                      (begin (system (string-join (cdr tail-cmd-list))))))))))
)))
             (print "Path could not be resolved!!"))))

(define (get-options cmd-list split-str)
    (if (null? cmd-list)
              (list '() '())
    (let loop ((hed (car cmd-list))
		 (tal (cdr cmd-list))
                  (res '()))
                   (cond
                   ((equal? hed split-str)
                      (list res tal))
                   ((null? tal)
                      (list (cons hed res) tal)) 
                   (else 
		  	(loop (car tal)(cdr tal)(cons hed res)))))))

  
(define (sretrieve:shell-grep-cmd base-pathlist ext-path top-areas base-path tail-cmd-list)
  (let* ((resolved-path (sauth-common:resolve-path ext-path base-pathlist top-areas ))
          (pattern (car tail-cmd-list))
          (pipe-cmd-list (get-options (cdr tail-cmd-list) "|"))
          (options (string-join (car pipe-cmd-list)))
          (pipe-cmd (cadr  pipe-cmd-list))
          (redirect-split (string-split (string-join  tail-cmd-list) ">"))   )
         (if(and ( > (length redirect-split) 2 ))
            (print "sgrep  cmd cannot accept > " (string-join redirect-split) " as an argument!!" )  
         (if (not (equal? resolved-path #f))
           (if (null? resolved-path) 
             (print "Path could not be resolved!!")
           (let* ((target-path (sauth-common:get-target-path  base-pathlist  ext-path top-areas base-path))
                  (restrictions (if (equal? target-path #f)
                                                 ""
                                               (sretrieve:shell-lookup base-path)))
                 (rest-str  (string-split (conc " --exclude-dir=" (string-join (string-split restrictions ",") " --exclude-dir=") ))))
             (if (not (file-exists? target-path))
               (print "Target path does not exist!") 
               (begin 
                 (cond
	 	  ((and (null? pipe-cmd) (string-null? options))
	 	     (run (pipe
      	      	      (grep ,pattern ,target-path ))))
		  ((and (null? pipe-cmd) (not (string-null? options)))
		     (run (pipe
      	      	      (begin (process-execute "/usr/bin/grep" (append (list options pattern target-path) rest-str))))))
                  ((and (not (null? pipe-cmd)) (string-null? options))
                        (run (pipe
      	      	      (grep ,exclude-dir ,pattern ,target-path)
                      (begin (system (string-join pipe-cmd))))))
                  (else   
                      (run (pipe
      	      	      ;(grep  ,options ,exclude-dir ,pattern ,target-path)
                       (begin (process-execute "/usr/bin/grep" (append (list options pattern target-path) rest-str)))

                      (begin (system (string-join  pipe-cmd)))))))
))))
             (print "Path could not be resolved!!")))))


(define (sretrieve:shell-less-cmd base-pathlist ext-path top-areas base-path)
  (let* ((resolved-path (sauth-common:resolve-path ext-path base-pathlist top-areas )))
         (if (not (equal? resolved-path #f))
           (if (null? resolved-path) 
             (print "Path could not be resolved!!")
           (let* ((target-path (sauth-common:get-target-path  base-pathlist  ext-path top-areas base-path)))
               (if (not (equal? target-path #f))
           	 (if (or (not (file-exists? target-path)) (directory? target-path))
                   (print "Target path does not exist or is a directory!") 
                   (begin 
                     ;(sretrieve:shell-db-do
         	     ;     db-location
     		     ;	  (lambda (db)
       		;		(sretrieve:register-action db "less" (current-user-name) target-path (conc "Executing cmd: less "  target-path))))   
 
                     (setenv "LESSSECURE" "1")
                     (run (pipe
      	      	     (less ,target-path))))))))
             (print "Path could not be resolved!!"))))



(define (sretrieve:shell-lookup base-path)
  (let* ((usr (current-user-name))
          (value (get-restrictions base-path usr)))
                              value))
             

(define (sretrieve:load-shell-config fname)
          (if (file-exists? fname)
	(read-config fname #f #f)
	))


(define (is_directory target-path) 
  (let* ((retval #f))
  (sretrieve:do-as-calling-user
    	(lambda ()
          ;(print (current-effective-user-id) ) 
          (if (directory? target-path)
               (set! retval  #t))))
             ;(print (current-effective-user-id))
     retval)) 

(define (make-exclude-pattern  restriction-list  )
  (if (null? restriction-list)
     ""
   (let loop ((hed (car restriction-list))
		 (tal (cdr restriction-list))
                  (ret-str ""))
                   (cond
                   ((null? tal)
                      (conc ret-str ".+" hed ".*")) 
                   (else 
		  	(loop (car tal)(cdr tal)(conc ret-str ".+" hed ".*|"))))))    )

(define (sretrieve:get-shell-cmd target-path base-path restrictions iport)
     (if (not (file-exists? target-path))
        (print "Target path does not exist!")
    (begin
    (if (not (equal? target-path #f))
    (begin     
        (if (is_directory target-path) 
        (begin
           (let* ((tmpfile (conc "/tmp/" (current-user-name) "/my-pipe"))
                  (parent-dir target-path)
                  (last-dir-name (if  (pathname-extension target-path)  
                                      (conc(pathname-file target-path) "." (pathname-extension target-path))
                                      (pathname-file target-path)))
                  (curr-dir (current-directory))   
                  (start-dir (conc (current-directory) "/" last-dir-name))
                  (execlude (make-exclude-pattern (string-split restrictions ","))))
                  ; (print tmpfile)
                    (if  (file-exists? start-dir)
                    (begin
                         (print last-dir-name " already exist in your work dir. Do you want to over write it? [y|n]")
                        (let* ((inl (read-line iport)))
                            (if (equal? inl "y")
                              (begin
                                 (change-directory parent-dir)
                                  (create-fifo  tmpfile)
                                  (process-fork 
    				   (lambda()
                                       (sleep 1) 
       					(with-output-to-file tmpfile
         				(lambda ()
            				(sretrieve:make_file parent-dir execlude parent-dir)))))
 
                                  (run (pipe
                   		   (tar "chfv" "-" "-T" ,tmpfile )
                   		   (begin (system (conc "cd " start-dir ";tar  xUf - "   )))))
                                   (change-directory curr-dir)
                                    (system (conc "rm " tmpfile)) )
			      (begin	
                               (print  "Nothing has been retrieved!!  ")))))
                     (begin
                       (sretrieve:do-as-calling-user
                    (lambda ()
		      (create-directory start-dir #t)))
                          (change-directory parent-dir)
                          ; (print execlude)
                           (create-fifo tmpfile)
                            (process-fork 
    				   (lambda()
                                       (sleep 1) 
       					(with-output-to-file tmpfile
         				(lambda ()
            				(sretrieve:make_file parent-dir execlude parent-dir)))))

                                  (run (pipe
                   		   (tar "chfv" "-"  "-T" ,tmpfile)
                   		   (begin (system (conc "cd " start-dir ";tar  xUf - "    )))))
                           (change-directory curr-dir)
                            (system (conc "rm " tmpfile)))))) 
        (begin
           (let*((parent-dir (pathname-directory target-path))
                 (start-dir (current-directory))
                 (filename (if  (pathname-extension target-path)  
                                      (conc(pathname-file target-path) "." (pathname-extension target-path))
                                      (pathname-file target-path)))
                 (work-dir-file (conc (current-directory) "/" filename)))
                 (if  (file-exists? work-dir-file)
                    (begin
                       (print filename " already exist in your work dir. Do you want to over write it? [y|n]")
                        (let* ((inl (read-line iport)))
                            (if (equal? inl "y")
                              (begin
                                 (change-directory parent-dir)
                                  (run (pipe
                   		   (tar "chfv" "-" ,filename)
                   		   (begin (system (conc "cd " start-dir ";tar  xUf - "   )))))
                                     (change-directory start-dir))
			      (begin	
                               (print  "Nothing has been retrieved!!  ")))))
                    (begin
               (change-directory parent-dir)  
                 (run (pipe
                   (tar "chfv" "-" ,filename)
                   (begin (system (conc "cd " start-dir ";tar xUf -")))))
                    (change-directory start-dir)))))))))))

(define (sretrieve:get-shell-cmd-line target-path base-path restrictions iport)
     (if (not (file-exists? target-path))
        (print "Target path does not exist!")
    (begin
    (if (not (equal? target-path #f))
    (begin     
        (if (is_directory target-path) 
        (begin
           (let* ((parent-dir target-path)
                  (last-dir-name (if  (pathname-extension target-path)  
                                      (conc(pathname-file target-path) "." (pathname-extension target-path))
                                      (pathname-file target-path)))
                  (curr-dir (current-directory))   
                  (start-dir (conc (current-directory) "/" last-dir-name))
                  (execlude (make-exclude-pattern (string-split restrictions ",")))
                   (tmpfile (conc "/tmp/" (current-user-name) "/my-pipe-" (current-process-id))))
                    (if  (file-exists? start-dir)
                    (begin
                         (print last-dir-name " already exist in your work dir.")
                         (print  "Nothing has been retrieved!!  "))
                     (begin
                   ;    (sretrieve:do-as-calling-user
                   ; (lambda ()
		      ;(create-directory start-dir #t)))
                          (change-directory parent-dir)
                            (create-fifo  tmpfile)
                                  (process-fork 
    				   (lambda()
                                       (sleep 1) 
       					(with-output-to-file tmpfile
         				(lambda ()
            				(sretrieve:make_file parent-dir execlude parent-dir)))))

                           (process-execute "/bin/tar" (append (list  "chfv" "-"  "-T" tmpfile)  (list "--ignore-failed-read")))    
                                  ;(run (pipe
                   		   ;(tar "chfv" "-" "." )
                   		   ;(begin (system (conc "cd " start-dir ";tar  xUf - "   execlude )))))
                            (system (conc "rm " tmpfile))    
                           (change-directory curr-dir))))) 
        (begin
           (let*((parent-dir (pathname-directory target-path))
                 (start-dir (current-directory))
                 (filename (if  (pathname-extension target-path)  
                                      (conc(pathname-file target-path) "." (pathname-extension target-path))
                                      (pathname-file target-path)))
                 (work-dir-file (conc (current-directory) "/" filename)))
                 (if  (file-exists? work-dir-file)
                    (begin
                       (print filename " already exist in your work dir.")
                               (print  "Nothing has been retrieved!!  "))
                    (begin
               (change-directory parent-dir)
                (process-execute "/bin/tar" (append (append (list  "chfv" "-") (list filename)) (list "--ignore-failed-read"))) 
                 ;(run (pipe
                  ; (tar "chfv" "-" ,filename)
                  ; (begin (system (conc "cd " start-dir ";tar xUf -")))))
                    (change-directory start-dir)))))))))))

(define (sretrieve:make_file path exclude base_path)
   (find-files 
     path
     action: (lambda (p res)
           (cond
                ((symbolic-link? p)   
                 (if (directory?(read-symbolic-link p)) 
                      (sretrieve:make_file p exclude base_path)
                      (print (string-substitute (conc base_path "/") "" p "-"))))
                 ((directory? p)              
                 ;;do nothing for dirs)
                 ) 
                (else 
                                        
                     (if (not (string-match (regexp exclude)  p ))
                        (print (string-substitute (conc base_path "/") "" p "-"))))))))

(define (sretrieve:shell-help)
(conc "Usage: " *exe-name* " [action [params ...]]

  ls    [target path]               	  : list contents of target area. The output of the cmd can be piped into other system cmd. eg ls <path> | grep txt
  cd    <target directory>	     	  : To change the current directory within the sretrive shell. 
  pwd				     	  : Prints the full pathname of the current directory within the sretrive shell.
  get   <file or directory path>     	  : download directory/files into the directory where sretrieve shell cmd was invoked   
  less  <file path>		     	  : Read input file to allows backward movement in the file as well as forward movement 
  cat   <file path>                  	  : show the contents of a file. The output of the cmd can be piped into other system cmd.

  sgrep <search path> <pattern> [options] : Similar to unix grep cmd But with diffrent parameter ordering. The output of the cmd can be piped into other system cmd. 
Part of the Megatest tool suite.
Learn more at http://www.kiatoa.com/fossils/megatest

Version: " megatest-fossil-hash)
)	
;(define (toplevel-command . args) #f)
(define (sretrieve:shell area)
 ; (print area)
  (use readline)
  (let* ((path      '())
	 (prompt    "sretrieve> ")
	 (args      (argv))
         (usr (current-user-name) )   
         (top-areas (sretrieve:get-accessable-projects area))
         (close-port     #f)
         (area-obj  (get-obj-by-code area))
         (user-obj (get-user usr)) 
         (base-path (if (null? area-obj) 
                         "" 
                        (caddr (cdr area-obj))))      
	 (iport     (make-readline-port prompt)))


        (if (null? area-obj)
          (begin 
             (print "Area " area " does not exist")
          (exit 1)))
	(let loop ((inl (read-line iport)))
          ;(print 1) 
	  (if (not (or (or (eof-object? inl)
		       (equal? inl "exit")) (port-closed? iport)))
	      (let* ((parts (string-split inl))
		     (cmd   (if (null? parts) #f (car parts))))
              ;  (print "2")
		(if (and (not cmd) (not (port-closed? iport)))
		    (loop (read-line))
		    (case (string->symbol cmd)
		      ((cd)
		       (if (> (length parts) 1) ;; have a parameter
                           (begin
                             (let*((arg (cadr parts))
                                   (resolved-path (sauth-common:resolve-path  arg path top-areas))
                                   (target-path (sauth-common:get-target-path path  arg top-areas base-path)))
                                 (if (not (equal? target-path #f))
                                 (if (or (equal? resolved-path #f) (not (file-exists? target-path)))    
                                 (print "Invalid argument " arg ".. ")
                                  (begin      
			            (set! path resolved-path)
                                     (sauthorize:do-as-calling-user
                              (lambda ()
			    (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "\"" inl "\"") (number->string (car user-obj))  (number->string (caddr area-obj))  "cd"))))
                                  )))))  
   			   (set! path '())))
                      ((pwd)
                         (if (null? path)
                           (print "/")  
                           (print "/" (string-join path "/")))) 
		      ((ls)
		       (let* ((thepath (if (> (length parts) 1) ;; have a parameter
					   (cdr parts)
					   `()))
			      (plen    (length thepath)))
                         (cond
			  ((null? thepath)
                           (sauth-common:shell-ls-cmd path "" top-areas base-path  '())
                            (sauthorize:do-as-calling-user
                              (lambda ()
			    (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "\"" inl "\"") (number->string (car user-obj))  (number->string (caddr area-obj))  "ls"))))   )
			  ((< plen 2)
                  
                            (sauth-common:shell-ls-cmd path  (car thepath) top-areas base-path '())
                              (sauthorize:do-as-calling-user
                              (lambda ()
			    (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "\"" inl "\"") (number->string (car user-obj))  (number->string (caddr area-obj))  "ls")))))
                          (else 
                            (if (equal? (car thepath) "|")
                              (sauth-common:shell-ls-cmd path "" top-areas base-path thepath)
                              (sauth-common:shell-ls-cmd path  (car thepath) top-areas base-path (cdr thepath)))
                           (sauthorize:do-as-calling-user
                              (lambda ()
			    (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "\"" inl "\"") (number->string (car user-obj))  (number->string (caddr area-obj))  "ls"))))))))
                       ((cat)
		       (let* ((thepath (if (> (length parts) 1) ;; have a parameter
					   (cdr parts)
					   `()))
			      (plen    (length thepath)))
			 (cond
			  ((null? thepath)
                          (print "Error: Missing argument to cat"))
			  ((< plen 2)
                            (sretrieve:shell-cat-cmd path  (car thepath) top-areas base-path '())
                              (sauthorize:do-as-calling-user
                              (lambda ()
			    (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "\"" inl "\"") (number->string (car user-obj))  (number->string (caddr area-obj))  "cat")))))

			  (else
                             (sretrieve:shell-cat-cmd path  (car thepath) top-areas base-path (cdr thepath))
                             (sauthorize:do-as-calling-user
                              (lambda ()
			    (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "\"" inl "\"") (number->string (car user-obj))  (number->string (caddr area-obj))  "cat"))))
))))
                       ((sgrep)
		       (let* ((thepath (if (> (length parts) 1) ;; have a parameter
					   (cdr parts)
					   `()))
			      (plen    (length thepath)))
			 (cond
			  ((null? thepath) 
                            (print "Error: Missing arguments to grep!! Useage: grep <search path> <pattern> [options] "))
                          ((< plen  2)
                          (print "Error: Missing arguments to grep!! Useage: grep <search path> <pattern> [options] "))
			  (else
                             (sretrieve:shell-grep-cmd path  (car thepath) top-areas base-path  (cdr thepath))
				(sauthorize:do-as-calling-user
                              (lambda ()
			    (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "\"" inl "\"") (number->string (car user-obj))  (number->string (caddr area-obj))  "grep"))))))))

                      ((less)
		       (let* ((thepath (if (> (length parts) 1) ;; have a parameter
					   (cdr parts)
					   `()))
			      (plen    (length thepath)))
			 (cond
			  ((null? thepath)
                          (print "Error: Missing argument to less"))
			  ((< plen 2)
                            (sretrieve:shell-less-cmd path  (car thepath) top-areas base-path)
                             (sauthorize:do-as-calling-user
                              (lambda ()
			    (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "\"" inl "\"") (number->string (car user-obj))  (number->string (caddr area-obj))  "less")))))
			  (else
                             (print "less cmd takes only one (<file path>) argument!!")))))
                      ((get)
                         (let* ((thepath (if (> (length parts) 1) ;; have a parameter
					   (cdr parts)
					   `()))
			      (plen    (length thepath)))
			 (cond
			  ((null? thepath)
                          (print "Error: Missing argument <path> to get"))
			  ((< plen 2)
                           (let* ((target-path (sauth-common:get-target-path path  (car thepath) top-areas base-path))
				 (restrictions (if (equal? target-path #f)
                                                 ""
                                               (sretrieve:shell-lookup base-path))))
                               (if (not (equal? target-path #f))
                             (begin  
                                 (sretrieve:get-shell-cmd target-path base-path restrictions iport)
                                  (sauthorize:do-as-calling-user
                              (lambda ()
			    (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "\"" inl "\"") (number->string (car user-obj))  (number->string (caddr area-obj))  "get"))))))))
			  (else
                            (print "Error: get cmd takes only one argument ")))))
                      ((exit)
                          (print "got exit"))  
                      ((help)

                          (print (sretrieve:shell-help)))
		      (else 
		       (print "Got command: " inl))))
                 (loop (read-line iport)))))))
;;))
    

;;======================================================================
;; MAIN
;;======================================================================
;;(define *default-log-port* (current-error-port))

(define (sretrieve:load-config exe-dir exe-name)
  (let* ((fname   (conc exe-dir "/." exe-name ".config")))
    ;; (ini:property-separator-patt " *  *")
    ;; (ini:property-separator #\space)
    (if (file-exists? fname)
	;; (ini:read-ini fname)
	(read-config fname #f #f)
	(make-hash-table))))

;; package-type is "megatest", "builds", "kits" etc.
;;

(define (sretrieve:load-packages configdat exe-dir package-type)
  (push-directory exe-dir)
  (let* ((packages-metadir  (configf:lookup configdat "settings" "packages-metadir"))
	 (conversion-script (configf:lookup configdat "settings" "conversion-script"))
	 (upstream-file     (configf:lookup configdat "settings" "upstream-file"))
	 (package-config    (conc packages-metadir "/" package-type ".config")))



       (if (file-exists? upstream-file)
	(if (or (not (file-exists? package-config)) ;; if not created call the updater, otherwise call only if upstream newer
		(> (file-modification-time upstream-file)(file-modification-time package-config)))
	    (handle-exceptions
	     exn
	     (debug:print 0 "ERROR: failed to run script " conversion-script " with params " upstream-file " " package-config)
	     (let ((pid (process-run conversion-script (list upstream-file package-config))))
	       (process-wait pid)))
	    (debug:print 0 "Skipping update of " package-config " from " upstream-file))
	(debug:print 0 "Skipping update of " package-config " as " upstream-file " not found"))


       (let ((res (if (file-exists? package-config)
		   (begin
		     (debug:print 0 "Reading package config " package-config)
		     (read-config package-config #f #t))
		   (make-hash-table))))
      (pop-directory)
      res)))

;(define (toplevel-command . args) #f)
(define (sretrieve:process-action configdat action . args)







 ;  (use readline)












    (case (string->symbol action)
      ((get)
       (if (< (length args) 2)
	   (begin 
	     (print  "ERROR: Missing arguments; <area> <relative path>" )
	     (exit 1)))
       (let* ((remargs     (args:get-args args '("-m" ) '() args:arg-hash 0))
              (iport (make-readline-port ">"))
              (area     (car args))
              (usr (current-user-name))
              (area-obj  (get-obj-by-code area))
              (user-obj (get-user usr))
              (top-areas (sretrieve:get-accessable-projects area)) 
              (base-path (if (null? area-obj) 
                                      "" 
                                     (caddr (cdr area-obj))))
	      (sub-path       (if (null? remargs) 
                                       "" 
                                       (car remargs))))

          (if (null? area-obj)
          	    (begin 
             		(print "Area " area " does not exist")
          	         (exit 1)))
              (let* ((target-path (sauth-common:get-target-path '()  (conc area "/" sub-path) top-areas base-path))
				 (restrictions (if (equal? target-path #f)
                                                 ""
                                               (sretrieve:shell-lookup base-path))))
             (if (not (equal? target-path #f))
                 (begin  
                   (sauthorize:do-as-calling-user
                      (lambda ()
   		        (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "get " area " " sub-path) (number->string (car user-obj))  (number->string (caddr area-obj))  "get"))))

                        (sretrieve:get-shell-cmd-line target-path base-path restrictions  iport))))))
         ((cp)
             (if (< (length args) 2)
	   (begin 
	     (print  "ERROR: Missing arguments; <area> <relative path>" )
	     (exit 1)))
       (let* ((remargs     (args:get-args args '("-m" ) '() args:arg-hash 0))
              (iport (make-readline-port ">"))
              (area     (car args))
              (usr (current-user-name))
              (area-obj  (get-obj-by-code area))
              (user-obj (get-user usr))
              (top-areas (sretrieve:get-accessable-projects area)) 
              (base-path (if (null? area-obj) 
                                      "" 
                                     (caddr (cdr area-obj))))
	      (sub-path       (if (null? remargs) 
                                       "" 
                                       (car remargs))))
         ;  (print args)
          (if (null? area-obj)
          	    (begin 
             		(print "Area " area " does not exist")
          	         (exit 1)))
              (let* ((target-path (sauth-common:get-target-path '()  (conc area "/" sub-path) top-areas base-path))
				 (restrictions (if (equal? target-path #f)
                                                 ""
                                              (sretrieve:shell-lookup base-path))))
                          ;(print target-path) 
                          (if (not (equal? target-path #f))
                             (begin  
                              (sauthorize:do-as-calling-user
                              (lambda ()
			    (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "get " area " " sub-path) (number->string (car user-obj))  (number->string (caddr area-obj))  "get"))))
                            (sretrieve:get-shell-cmd-line target-path base-path restrictions  iport))))))
      ((ls)
          (cond
            ((< (length args) 1)
              (begin 
	      (print  "ERROR: Missing arguments; <area> ")
	      (exit 1)))
              ((equal? (length args) 1)
                 (let*  ((area     (car args))
                         (usr (current-user-name))
                         (area-obj  (get-obj-by-code area))
                         (user-obj (get-user usr))
                         (top-areas (sretrieve:get-accessable-projects area)) 
                         (base-path (if (null? area-obj) 
                                      "" 
                                     (caddr (cdr area-obj)))))
                  (if (null? area-obj)
          	    (begin 
             		(print "Area " area " does not exist")
          	         (exit 1)))
           	 (sauth-common:shell-ls-cmd '() area top-areas base-path  '())
                 (sauthorize:do-as-calling-user
                   (lambda ()
		    (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" "ls" (number->string (car user-obj)) (number->string (caddr area-obj)) "ls"))))))
             ((> (length args) 1)
               (let*  ((remargs     (args:get-args args '("-m" ) '() args:arg-hash 0))
                        (usr (current-user-name))
                        (user-obj (get-user usr))
                         (area     (car args)))
                         (let* ((area-obj  (get-obj-by-code area))
                               (top-areas (sretrieve:get-accessable-projects area)) 
                               (base-path (if (null? area-obj) 
                                      "" 
                                     (caddr (cdr area-obj))))
                                 
                               (sub-path (if (null? remargs) 
                                       area 
                                      (conc area "/" (car remargs)))))
                             ;(print "sub path "  sub-path)

                            (if (null? area-obj)
          	              (begin 
             		        (print "Area " area " does not exist")
          	                 (exit 1)))
                              (sauth-common:shell-ls-cmd `()  sub-path top-areas base-path '())
                            (sauthorize:do-as-calling-user
				(lambda ()
                       	       (run-cmd (conc *sauth-path* "/sauthorize") (list "register-log" (conc "ls " sub-path) (number->string (car user-obj)) (number->string (caddr area-obj)) "ls")))))))))



       ((shell)
          (if (< (length args) 1)
             (begin 
	     (print  "ERROR: Missing arguments <area>!!" )
	     (exit 1))
             (sretrieve:shell (car args)))) 
      (else (debug:print 0 "Unrecognised command " action))))

(define (main)
  (let* ((args      (argv))
	 (prog      (car args))
	 (rema      (cdr args))
	 (exe-name  (pathname-file (car (argv))))
	 (exe-dir   (or (pathname-directory prog)
			(sretrieve:find exe-name (string-split (get-environment-variable "PATH") ":"))))
	 (configdat (sretrieve:load-config exe-dir exe-name)))
    ;; preserve the exe data in the config file
    (hash-table-set! configdat "exe-info" (list (list "exe-name" exe-name)
						(list "exe-dir"  exe-dir)))
    (cond
     ;; one-word commands
     ((eq? (length rema) 1)
      (case (string->symbol (car rema))
	((help -h -help --h --help)
	 (print sretrieve:help))




















	(else
	 (print "ERROR: Unrecognised command. Try \"sretrieve help\""))))
     ;; multi-word commands
     ((null? rema)(print sretrieve:help))
     ((>= (length rema) 2)
      (apply sretrieve:process-action configdat (car rema)(cdr rema)))
     (else (debug:print 0 "ERROR: Unrecognised command. Try \"sretrieve help\"")))))

(main)