[doldaconnect.git] / lib / guile / autodl

#!/usr/bin/guile -s
!#

(use-modules (dolcon ui))
(use-modules (ice-9 pretty-print))

(define sr '())
(define lastsearch 0)
(define info-searcheta 0)
(define info-numavail 0)
(define info-numreal 0)
(define info-numtotal 0)
(define lastparse 0)
(define srchid -1)
(define session '())
(define trans '())
(define dpeers '())
(define lastdl 0)

(define (logf msg)
  (write-line msg (current-output-port))
  (catch 'system-error (lambda ()
			 (fsync (current-output-port)))
	 (lambda (key . err) #f))
  )

(define (make-getopt opts optdesc)
  (let ((arg opts) (curpos 0) (rest '()))
    (lambda ()
      (if (eq? arg '()) rest
	  (let ((ret #f))
	    (while (not ret)
		   (if (= curpos 0)
		       (if (eq? (string-ref (car arg) 0) #\-)
			   (set! curpos 1)
			   (begin
			     (set! rest (append rest (list (car arg))))
			     (set! arg (cdr arg))
			     (if (eq? arg '())
				 (set! ret #t)))))
		   (if (> curpos 0)
		       (if (< curpos (string-length (car arg)))
			   (begin (set! ret (string-ref (car arg) curpos)) (set! curpos (+ curpos 1)))
			   (begin (set! curpos 0) (set! arg (cdr arg)) (if (eq? arg '()) (set! ret #t))))))
	    (if (eq? ret #t) rest
		(let ((opt (string-index optdesc ret)))
		  (if (eq? opt #f) (throw 'illegal-option ret)
		      (if (and (< opt (- (string-length optdesc) 1)) (eq? (string-ref optdesc (+ opt 1)) #\:))
			  (let ((ret
				 (cons ret (let ((optarg
						  (if (< curpos (string-length (car arg)))
						      (substring (car arg) curpos)
						      (begin (set! arg (cdr arg)) (if (eq? arg '()) (throw 'requires-argument ret)) (car arg)))))
					     (set! arg (cdr arg)) optarg))))
			    (set! curpos 0)
			    ret)
			  (list ret))))))))))

(define (ftime)
  (let ((ctime (gettimeofday)))
    (+ (car ctime) (/ (cdr ctime) 1000000))))

(define (wanttosearch)
  (> (- (current-time) lastsearch)
     (if (eq? (cdr (assoc 'search-mode session)) 'wait)
	 7200
	 (if (> (length trans) 0) 300 60)))
  )

(define defspeed '())
(let ((matchlist (list
		  (cons (make-regexp "^[][{}() ]*BBB" regexp/icase) 100000))))
  (set! defspeed
	(lambda (sr)
	  (catch 'ret
		 (lambda ()
		   (for-each (lambda (o)
			       (if (regexp-exec (car o) (cadr (cdr (assoc 'peer sr))))
				   (throw 'ret (cdr o))))
			     matchlist)
		   15000)
		 (lambda (sig ret)
		   ret))
	  )))

(define (sr-less? sr1 sr2)
  (let ((s1 (if (cdr (assoc 'speed sr1)) (cdr (assoc 'speed sr1)) (defspeed sr1)))
	(s2 (if (cdr (assoc 'speed sr2)) (cdr (assoc 'speed sr2)) (defspeed sr2))))
    (if (= s1 s2)
	(< (cdr (assoc 'resptime sr1)) (cdr (assoc 'resptime sr2)))
	(> s1 s2)))
  )

(define (srg-less? g1 g2)
  (or (> (length (cdr g1)) (length (cdr g2)))
      (and (= (length (cdr g1)) (length (cdr g2)))
	   (> (car g1) (car g2))))
  )

(define (gettrbysize size)
  (catch 'ret
	 (lambda ()
	   (for-each (lambda (o)
		       (if (= (cdr (assoc 'size (cdr o))) size)
			   (throw 'ret (cdr o))))
		     trans)
	   #f)
	 (lambda (sig ret)
	   ret))
  )

(define (download sr)
  (let ((resp #f))
    (let ((args (list "download"
		      (car (cdr (assoc 'peer sr)))
		      (cadr (cdr (assoc 'peer sr)))
		      (cdr (assoc 'filename sr))
		      (cdr (assoc 'size sr)))))
      (let ((hash (assoc 'hash sr)))
	(if (and hash (not (equal? (cdr hash) ""))) (set! args (append args (list "hash" (cdr hash))))))
      (let ((tag (assoc 'tag session)))
	(if tag (set! args (append args (list "tag" (cdr tag))))))
      (let ((uarg (assoc 'uarg session)))
	(if uarg (set! args (append args (list "user" (cdr uarg))))))
      (set! resp (apply dc-ecmd-assert 200 args)))
    (let ((id (car (dc-intresp resp))))
      (set! trans
	    (cons (cons id (list (assoc 'size sr)
				 (assoc 'peer sr)
				 (assoc 'filename sr)
				 (assoc 'resptime sr)
				 '(curpos . 0)
				 '(state . wait)
				 '(curspeed . #f)
				 '(lastpos . 0)
				 (cons 'id id)
				 (cons 'lasttime (current-time))
				 (cons 'lastprog (current-time))))
		  trans))
      (logf (string-append "downloading "
			   (cdr (assoc 'filename sr))
			   " from "
			   (cadr (cdr (assoc 'peer sr)))
			   ", "
			   (number->string (cdr (assoc 'size sr)))
			   " bytes (id "
			   (number->string id)
			   ", "
			   (number->string (cdr (assoc 'slots sr)))
			   " slots), timing out in "
			   (number->string (max 10 (* (cdr (assoc 'resptime sr)) 2)))
			   " seconds"))))
  (set! lastdl (current-time))
  )

(define (disablepeer peer)
  (let ((newglist '()) (numrem 0))
    (for-each (lambda (g)
		(let ((newlist '()))
		  (for-each (lambda (o)
			      (if (not (equal? (cdr (assoc 'peer o)) peer))
				  (set! newlist (cons o newlist))
				  (set! numrem (+ numrem 1))))
			    (cdr g))
		  (if (not (eq? newlist '()))
		      (set! newglist (cons (cons (car g) (sort newlist sr-less?)) newglist)))))
	      sr)
    (set! sr (sort newglist srg-less?))
    (logf (string-append "disabled " (cadr peer) " and removed " (number->string numrem) " search results")))
  (let* ((dpa (assoc peer dpeers)) (dp (and (pair? dpa) (cdr dpa))))
    (if dp
	(set-cdr! (assoc 'time dp) (current-time))
	(set! dpeers (cons (cons peer (list (cons 'time (current-time))
					    (cons 'peer peer)))
			   dpeers))))
  )

(define (checktrans)
  (let ((time (current-time)))
    (for-each (lambda (o)
		(if (and (memq (cdr (assoc 'state (cdr o))) '(wait hs))
			 (> (- time (cdr (assoc 'lastprog (cdr o)))) (max 10 (* (cdr (assoc 'resptime (cdr o))) 2))))
		    (begin (logf (string-append "transfer " (number->string (car o)) " timing out"))
			   (dc-ecmd-assert 200 "cancel" (car o))
			   (disablepeer (cdr (assoc 'peer (cdr o))))
			   (set! trans (assq-remove! trans (car o)))
			   (write-info-file)))
		(if (and (eq? (cdr (assoc 'state (cdr o))) 'main)
			 (> (- time (cdr (assoc 'lastprog (cdr o)))) 60))
		    (begin (logf (string-append "transfer " (number->string (car o)) " seems to have stalled"))
			   (dc-ecmd-assert 200 "cancel" (car o))
			   (set! trans (assq-remove! trans (car o)))
			   (write-info-file)))
		(if (and (eq? (cdr (assoc 'state (cdr o))) 'main)
			 (> (- (cdr (assoc 'lastprog (cdr o))) (cdr (assoc 'lasttime (cdr o)))) 20))
		    (begin (set-cdr! (assoc 'curspeed (cdr o))
				     (/ (- (cdr (assoc 'curpos (cdr o))) (cdr (assoc 'lastpos (cdr o))))
					(- (cdr (assoc 'lastprog (cdr o))) (cdr (assoc 'lasttime (cdr o))))))
			   (set-cdr! (assoc 'lastpos (cdr o)) (cdr (assoc 'curpos (cdr o))))
			   (set-cdr! (assoc 'lasttime (cdr o)) (cdr (assoc 'lastprog (cdr o))))
			   (write-info-file))))
		trans))
  )

(define (write-info-file)
  (if (assoc 'info-file session)
      (let ((op (open-output-file (cdr (assoc 'info-file session)))))
	(write (list (cons 'numdl (length trans))
		     (cons 'lastdl lastdl)
		     (cons 'availsr info-numavail)
		     (cons 'realsr info-numreal)
		     (cons 'totalsr info-numtotal)
		     (cons 'lastsrch lastsearch)
		     (cons 'srcheta info-searcheta)
		     (cons 'srchmode (cdr (assoc 'search-mode session))))
	       op)
	(newline op)
	(close-port op))))

(define (parseresults)
  (logf (string-append "entering parseresults with "
		       (number->string
			(apply + (map (lambda (o) (length (cdr o))) sr)))
		       " results in "
		       (number->string (length sr))
		       " sizes"))
  (let ((retval #t) (numreal 0) (numtotal 0) (numavail 0))
    (catch 'ret
	   (lambda ()
	     (and (eq? sr '()) (throw 'ret #f))
	     (let ((numrem 0) (countrem 0) (newglist '()))
	       (for-each (lambda (g)
			   (let ((newlist '()))
			     (for-each (lambda (o)
					 (if (< (- (current-time) (cdr (assoc 'recvtime o))) 300)
					     (set! newlist (cons o newlist))
					     (set! countrem (+ countrem 1))))
				       (cdr g))
			     (if (> (length newlist) 0)
				 (set! newglist (cons (cons (car g) (sort newlist sr-less?)) newglist))
				 (set! numrem (+ numrem 1)))))
			 sr)
	       (set! sr (sort newglist srg-less?))
	       (if (> countrem 0)
		   (logf (string-append "removed " (number->string countrem) " time-outed results and " (number->string numrem) " entire sizes"))))
	     (let ((numrem 0) (newlist '()))
	       (for-each (lambda (o)
			   (if (> (- (current-time) (cdr (assoc 'time o))) 1800)
			       (set! numrem (+ numrem 1))
			       (set! newlist (cons o newlist))))
			 dpeers)
	       (set! dpeers newlist)
	       (logf (string-append "re-enabled " (number->string numrem) " disabled users")))
	     (let ((numrem 0) (countrem 0) (newglist '()))
	       (for-each (lambda (g)
			   (let ((newlist '()))
			     (for-each (lambda (o)
					 (if (not (assoc (cdr (assoc 'peer o)) dpeers))
					     (set! newlist (cons o newlist))
					     (set! countrem (+ countrem 1))))
				       (cdr g))
			     (if (> (length newlist) 0)
				 (set! newglist (cons (cons (car g) (sort newlist sr-less?)) newglist))
				 (set! numrem (+ numrem 1)))))
			 sr)
	       (set! sr (sort newglist srg-less?))
	       (if (> countrem 0)
		   (logf (string-append "removed " (number->string countrem) " results with disabled peers and " (number->string numrem) " entire sizes"))))
	     (and (eq? sr '()) (throw 'ret #f))
	     (set! numtotal (apply + (map (lambda (o) (length (cdr o))) sr)))
	     (let* ((maxsize (apply max (map (lambda (o) (length (cdr o))) sr)))
		    (minsize (/ maxsize 3)))
	       (let ((numrem 0) (countrem 0))
		 (for-each (lambda (o) (if (< (length (cdr o)) minsize)
					   (begin (set! countrem (+ countrem (length (cdr o))))
						  (set! numrem (+ numrem 1)))))
			   sr)
		 (if (> countrem 0)
		     (logf (string-append "will disregard " (number->string countrem) " results from " (number->string numrem) " sizes due to popularity lack")))
		 (set! numreal (- numtotal countrem)))
	       (let ((numrem 0) (numrrem 0))
		 (for-each (lambda (g)
			     (for-each (lambda (o)
					 (if (< (cdr (assoc 'slots o)) 1)
					     (begin (set! numrem (+ numrem 1))
						    (if (>= (length (cdr g)) minsize)
							(set! numrrem (+ numrrem 1))))))
				       (cdr g)))
			   sr)
		 (if (> numrem 0)
		     (logf (string-append (number->string numrem) " results had no slots")))
		 (set! numavail (- numreal numrrem)))
	       (for-each (lambda (g)
			   (if (>= (length (cdr g)) minsize)
			       (catch 'found
				      (lambda ()
					(for-each (lambda (o)
						    (and (> (cdr (assoc 'slots o)) 0)
							 (throw 'found o)))
						  (cdr g)))
				      (lambda (sig sr)
					(let ((tr (gettrbysize (cdr (assoc 'size sr)))))
					  (if (not tr)
					      (if (< (length trans) (cdr (assoc 'maxtrans session)))
						  (download sr))
					      (if (and (cdr (assoc 'curspeed tr))
						       (not (equal? (cdr (assoc 'peer sr)) (cdr (assoc 'peer tr))))
						       (> (- (or (cdr (assoc 'speed sr)) (defspeed sr)) (cdr (assoc 'curspeed tr))) 10000))
						  (begin (logf (string-append "abandoning transfer "
									      (number->string (cdr (assoc 'id tr)))
									      " for possible faster sender"))
							 (dc-ecmd-assert 200 "cancel" (cdr (assoc 'id tr)))
							 (set! trans (assq-remove! trans (cdr (assoc 'id tr))))
							 (download sr)))))))))
			 sr)
	       )
	     )
	   (lambda (sig ret)
	     (set! retval ret)
	     ))
    (set! info-numavail numavail)
    (set! info-numreal numreal)
    (set! info-numtotal numtotal)
    (write-info-file)
    retval)
  )

(define (handlesr filename fnet peer size slots resptime hash)
  (if (eq? (cdr (assoc 'search-mode session)) 'wait)
      (begin (set-cdr! (assoc 'search-mode session) 'normal)
	     (logf "reverting to normal mode")))
  (let ((cl (or (assoc size sr)
		(let ((newp (cons size '()))) (set! sr (append sr (list newp))) newp)))
	(newsr (list
		(cons 'filename filename)
		(cons 'peer (list fnet peer))
		(cons 'size size)
		(cons 'slots slots)
		(cons 'resptime resptime)
		(cons 'speed (getspeed peer))
		(cons 'hash hash)
		(cons 'recvtime (current-time))
		(cons 'dis #f)))
	(newlist '()))
    (for-each (lambda (o) (if (not (and (equal? (cdr (assoc 'filename o)) filename)
					(equal? (cdr (assoc 'peer o)) (list fnet peer))))
			      (set! newlist (cons o newlist))))
	      (cdr cl))
    (set-cdr! cl (sort (cons newsr newlist) sr-less?))
    )
  )

; XXX: Redefine to go through the server, once that is implemented
(define (getspeed username)
  (catch 'system-error
	 (lambda ()
	   (let* ((port (open-input-file (string-append (getenv "HOME") "/dc/users/" username))) (avg 0) (numdls (string->number (read-line port))) (max (string->number (read-line port))) (numents (string->number (read-line port))))
	     (do ((i 0 (+ i 1))) ((= i numents) (close-port port) (/ avg numents)) (set! avg (+ avg (string->number (read-line port)))))
	   ))
	 (lambda args
	   #f
	   )
	 )
  )

(define (validate-session session)
  (catch 'wrong-type-arg
	 (lambda ()
	   (and
	    (assoc 'sexpr session)
	    (assoc 'prio session)
	    (assoc 'maxtrans session)
	    #t
	    )
	   )
	 (lambda (key . args)
	   (display "Session data is not an a-list\n" (current-error-port))
	   #f)
	 )
  )

(define (autodl-main args)
  (let ((dc-server #f) (done #f) (retval 0) (filterexit ""))
    (let ((getopt (make-getopt (cdr args) "whs:S:e:p:t:a:I:E:")) (arg #f))
      (do ((arg (getopt) (getopt))) ((not (and (pair? arg) (char? (car arg)))) (set! args arg))
	(cond ((eq? (car arg) #\h)
	       (begin (display "usage: autodl [-s server] -S sessfile\n" (current-error-port))
		      (display "       autodl [-w] [-s server] -e search-expression [-p prio] [-t tag] [-a userarg]\n" (current-error-port))
		      (display "       autodl [-s server]\n" (current-error-port))
		      (display "       autodl -h\n" (current-error-port))
		      (exit 0)))
	      ((eq? (car arg) #\s)
	       (set! dc-server (cdr arg)))
	      ((eq? (car arg) #\S)
	       (let ((port (open-file (cdr arg)))) (set! session (read port)) (close-port port)))
	      ((eq? (car arg) #\p)
	       (let ((c (assoc 'prio session)))
		 (if c (set-cdr! c (cdr arg))
		     (set! session (cons (cons 'prio (cdr arg)) session)))))
	      ((eq? (car arg) #\t)
	       (let ((c (assoc 'tag session)))
		 (if c (set-cdr! c (cdr arg))
		     (set! session (cons (cons 'tag (cdr arg)) session)))))
	      ((eq? (car arg) #\a)
	       (let ((c (assoc 'uarg session)))
		 (if c (set-cdr! c (cdr arg))
		     (set! session (cons (cons 'uarg (cdr arg)) session)))))
	      ((eq? (car arg) #\I)
	       (let ((c (assoc 'info-file session)))
		 (if c (set-cdr! c (cdr arg))
		     (set! session (cons (cons 'info-file (cdr arg)) session)))))
	      ((eq? (car arg) #\E)
	       (let ((c (assoc 'estat-file session)))
		 (if c (set-cdr! c (cdr arg))
		     (set! session (cons (cons 'estat-file (cdr arg)) session)))))
	      ((eq? (car arg) #\e)
	       (set! session (cons (cons 'sexpr (dc-lexsexpr (cdr arg))) session)))
	      ((eq? (car arg) #\w)
	       (set! session (cons '(search-mode . wait) session)))
	      )
	)
      )
    (if (eq? session '()) (begin (if (isatty? (current-input-port)) (display "Enter session data (s-expr):\n" (current-error-port))) (set! session (read))))
    (if (not (assoc 'prio session))
	(set! session (cons '(prio . 10) session)))
    (if (not (assoc 'maxtrans session))
	(set! session (cons '(maxtrans . 1) session)))
    (if (not (assoc 'search-mode session))
	(set! session (cons '(search-mode . normal) session)))
    (if (not (validate-session session)) (begin (display "Invalid session!\n" (current-error-port)) (exit 1)))
    (if (not dc-server) (set! dc-server (getenv "DCSERVER")))
    (if (not dc-server) (set! dc-server "localhost"))
    (catch 'system-error
	   (lambda ()
	     (dc-c&l #t dc-server #t))
	   (lambda (key . args)
	     (logf (string-append "could not connect to server: " (apply format #f (cadr args) (caddr args))))
	     (exit 2)))
    (dc-ecmd-assert 200 "notify" "trans:act" "on" "trans:prog" "on" "srch:act" "on")
    (for-each (lambda (sig) (sigaction sig (lambda (sig) (throw 'sig sig)))) (list SIGINT SIGTERM SIGHUP))
    (catch 'sig
	   (lambda ()
	     (while #t
		    (if (and (not (= lastsearch -1)) (wanttosearch))
			(begin
			  (if (not (= srchid -1))
			      (dc-ecmd "cansrch" srchid))
			  (let* ((resp (apply dc-ecmd-assert (append (list '(200 501 509) "search" "prio" (number->string (cdr (assoc 'prio session))) "all") (cdr (assoc 'sexpr session)))))
				 (ires (dc-intresp resp))
				 (eres (dc-extract resp)))
			    (case (cdr (assoc 'code eres))
			      ((200)
			       (begin (set! srchid (car ires))
				      (logf (string-append "search scheduled in " (number->string (cadr ires)) " seconds (id " (number->string srchid) ")"))
				      (set! info-searcheta (+ (current-time) (cadr ires)))
				      (set! lastsearch -1)
				      (write-info-file)))
			      ((501)
			       (begin (set! srchid -1)
				      (logf (string-append "no fnetnodes available to search on"))
				      (set! lastsearch (current-time))))
			      ((509)
			       (begin (logf "illegal search expression")
				      (set! done #t)
				      (set! retval 3)
				      (throw 'sig 0)))))))
		    (checktrans)
		    (if (> (- (current-time) lastparse) 20)
			(begin (parseresults)
			       (set! lastparse (current-time))))
		    (dc-select 10000)
		    (while (let ((resp (dc-getresp)))
			     (if resp
				 (begin
				   (let* ((er (dc-extract resp)) (code (cdr (assoc 'code er))) (cmd (cdr (assoc 'cmd er))))
				     (cond
				       ((equal? cmd ".notify")
					(case code
					  ((611) ; Transfer state change
					   (let ((ires (dc-intresp resp)) (tr #f))
					     (if (and ires (assoc (car ires) trans))
						 (begin (set! tr (cdr (assoc (car ires) trans)))
							(set-cdr! (assoc 'state tr)
								  (cdr (assoc (cadr ires) '((0 . wait) (1 . hs) (2 . main) (3 . done)))))
							(set-cdr! (assoc 'lastprog tr) (current-time))))))
					  ((614) ; Transfer error
					   (let ((ires (dc-intresp resp)))
					     (if (and ires (assoc (car ires) trans))
						 (begin (logf (string-append "transfer " (number->string (car ires)) " encountered error " (number->string (cadr ires))))
							(dc-ecmd-assert 200 "cancel" (car ires))
							(let ((tr (cdr (assoc (car ires) trans))))
							  (disablepeer (cdr (assoc 'peer tr))))
							(set! trans (assq-remove! trans (car ires)))))))
					  ((615) ; Transfer progress
					   (let ((ires (dc-intresp resp)) (tr #f))
					     (if (and ires (assoc (car ires) trans))
						 (begin (set! tr (cdr (assoc (car ires) trans)))
							(set-cdr! (assoc 'curpos tr) (cadr ires))
							(set-cdr! (assoc 'lastprog tr) (current-time))))))
					  ((617) ; Transfer destroyed
					   (let* ((ires (dc-intresp resp)) (tr (and ires (assoc (car ires) trans))))
					     (if tr
						 (begin (if (eq? (cdr (assoc 'state (cdr tr))) 'done)
							    (begin (logf (string-append "transfer " (number->string (car ires)) " done (" (cadr ires) ")"))
								   (set! trans (assq-remove! trans (car ires)))
								   (set! done #t)
								   (set! filterexit (cadr ires))
								   (throw 'sig 0))
							    (begin (logf (string-append "transfer " (number->string (car ires)) " disappeared"))
								   (set! trans (assq-remove! trans (car ires)))))))))
					  ((620) ; Search rescheduled
					   (let ((ires (dc-intresp resp)))
					     (if (and ires (= (car ires) srchid))
						 (begin (set! info-searcheta (+ (current-time) (cadr ires)))
							(logf (string-append "search rescheduled to T+" (number->string (cadr ires))))
							(write-info-file)))))
					  ((621) ; Search committed
					   (let ((ires (dc-intresp resp)))
					     (if (and ires (= (car ires) srchid))
						 (begin (logf "search committed")
							(set! info-searcheta 0)
							(set! lastsearch (current-time))
							(write-info-file)))))
					  ((622) ; Search result
					   (let ((ires (list->vector (dc-intresp resp))))
					     (if (and ires (= (vector-ref ires 0) srchid)) (apply handlesr (map (lambda (n) (vector-ref ires n)) '(1 2 3 4 5 7 8))))))
					  
					  )
					)
				       
				       )
				     )
				   #t)
				 #f)
			     )
			   #t
			   )
		    )
	     )
	   (lambda (key sig)
	     (logf (string-append "interrupted by signal " (number->string sig)))
	     (if (not done)
		 (set! retval 1)))
	   )
    (logf "quitting...")
    (catch 'sig
	   (lambda ()
	     (if (dc-connected)
		 (begin (for-each (lambda (o)
				    (dc-qcmd (list "cancel" (car o))))
				  trans)
			(if (assoc 'info-file session)
			    (catch 'system-error
				   (lambda ()
				     (delete-file (cdr (assoc 'info-file session))))
				   (lambda (key . args) #t)))
			(if (and done (assoc 'tag session))
			    (dc-qcmd (list "filtercmd" "rmtag" (cdr (assoc 'tag session)))))
			(if (not (= srchid -1))
			    (dc-qcmd (list "cansrch" srchid)))
			(dc-qcmd '("quit"))
			(while (dc-connected) (dc-select))
			)))
	   (lambda (key sig)
	     (logf "forcing quit")))
    (if (assoc 'estat-file session)
	(let ((op (open-output-file (cdr (assoc 'estat-file session)))))
	  (write filterexit op)
	  (newline op)
	  (close-port op)))
    (exit retval)
    )
  )

(setlocale LC_ALL "")
(autodl-main (command-line))
Commit	Line	Data
d3372da9	1	#!/usr/bin/guile -s
	2	!#
	3
	4	(use-modules (dolcon ui))
	5	(use-modules (ice-9 pretty-print))
	6
	7	(define sr '())
	8	(define lastsearch 0)
	9	(define info-searcheta 0)
	10	(define info-numavail 0)
	11	(define info-numreal 0)
	12	(define info-numtotal 0)
	13	(define lastparse 0)
	14	(define srchid -1)
	15	(define session '())
	16	(define trans '())
	17	(define dpeers '())
	18	(define lastdl 0)
	19
	20	(define (logf msg)
	21	(write-line msg (current-output-port))
	22	(catch 'system-error (lambda ()
	23	(fsync (current-output-port)))
	24	(lambda (key . err) #f))
	25	)
	26
	27	(define (make-getopt opts optdesc)
	28	(let ((arg opts) (curpos 0) (rest '()))
	29	(lambda ()
	30	(if (eq? arg '()) rest
	31	(let ((ret #f))
	32	(while (not ret)
	33	(if (= curpos 0)
	34	(if (eq? (string-ref (car arg) 0) #\-)
	35	(set! curpos 1)
	36	(begin
	37	(set! rest (append rest (list (car arg))))
	38	(set! arg (cdr arg))
	39	(if (eq? arg '())
	40	(set! ret #t)))))
	41	(if (> curpos 0)
	42	(if (< curpos (string-length (car arg)))
	43	(begin (set! ret (string-ref (car arg) curpos)) (set! curpos (+ curpos 1)))
	44	(begin (set! curpos 0) (set! arg (cdr arg)) (if (eq? arg '()) (set! ret #t))))))
	45	(if (eq? ret #t) rest
	46	(let ((opt (string-index optdesc ret)))
	47	(if (eq? opt #f) (throw 'illegal-option ret)
	48	(if (and (< opt (- (string-length optdesc) 1)) (eq? (string-ref optdesc (+ opt 1)) #\:))
	49	(let ((ret
	50	(cons ret (let ((optarg
	51	(if (< curpos (string-length (car arg)))
	52	(substring (car arg) curpos)
	53	(begin (set! arg (cdr arg)) (if (eq? arg '()) (throw 'requires-argument ret)) (car arg)))))
	54	(set! arg (cdr arg)) optarg))))
	55	(set! curpos 0)
	56	ret)
	57	(list ret))))))))))
	58
	59	(define (ftime)
	60	(let ((ctime (gettimeofday)))
	61	(+ (car ctime) (/ (cdr ctime) 1000000))))
	62
	63	(define (wanttosearch)
	64	(> (- (current-time) lastsearch)
d30cc4bc	65	(if (eq? (cdr (assoc 'search-mode session)) 'wait)
	66	7200
	67	(if (> (length trans) 0) 300 60)))
d3372da9	68	)
	69
	70	(define defspeed '())
	71	(let ((matchlist (list
	72	(cons (make-regexp "^[][{}() ]*BBB" regexp/icase) 100000))))
	73	(set! defspeed
	74	(lambda (sr)
	75	(catch 'ret
	76	(lambda ()
	77	(for-each (lambda (o)
	78	(if (regexp-exec (car o) (cadr (cdr (assoc 'peer sr))))
	79	(throw 'ret (cdr o))))
	80	matchlist)
	81	15000)
	82	(lambda (sig ret)
	83	ret))
	84	)))
	85
	86	(define (sr-less? sr1 sr2)
	87	(let ((s1 (if (cdr (assoc 'speed sr1)) (cdr (assoc 'speed sr1)) (defspeed sr1)))
	88	(s2 (if (cdr (assoc 'speed sr2)) (cdr (assoc 'speed sr2)) (defspeed sr2))))
	89	(if (= s1 s2)
	90	(< (cdr (assoc 'resptime sr1)) (cdr (assoc 'resptime sr2)))
	91	(> s1 s2)))
	92	)
	93
	94	(define (srg-less? g1 g2)
	95	(or (> (length (cdr g1)) (length (cdr g2)))
	96	(and (= (length (cdr g1)) (length (cdr g2)))
	97	(> (car g1) (car g2))))
	98	)
	99
	100	(define (gettrbysize size)
	101	(catch 'ret
	102	(lambda ()
	103	(for-each (lambda (o)
	104	(if (= (cdr (assoc 'size (cdr o))) size)
	105	(throw 'ret (cdr o))))
	106	trans)
	107	#f)
	108	(lambda (sig ret)
	109	ret))
	110	)
	111
	112	(define (download sr)
	113	(let ((resp #f))
	114	(let ((args (list "download"
	115	(car (cdr (assoc 'peer sr)))
	116	(cadr (cdr (assoc 'peer sr)))
	117	(cdr (assoc 'filename sr))
	118	(cdr (assoc 'size sr)))))
3b0de0fd	119	(let ((hash (assoc 'hash sr)))
3b0de0fd	120	(if (and hash (not (equal? (cdr hash) ""))) (set! args (append args (list "hash" (cdr hash))))))
d3372da9	121	(let ((tag (assoc 'tag session)))
	122	(if tag (set! args (append args (list "tag" (cdr tag))))))
	123	(let ((uarg (assoc 'uarg session)))
	124	(if uarg (set! args (append args (list "user" (cdr uarg))))))
	125	(set! resp (apply dc-ecmd-assert 200 args)))
	126	(let ((id (car (dc-intresp resp))))
	127	(set! trans
	128	(cons (cons id (list (assoc 'size sr)
	129	(assoc 'peer sr)
	130	(assoc 'filename sr)
	131	(assoc 'resptime sr)
	132	'(curpos . 0)
	133	'(state . wait)
	134	'(curspeed . #f)
	135	'(lastpos . 0)
	136	(cons 'id id)
	137	(cons 'lasttime (current-time))
	138	(cons 'lastprog (current-time))))
	139	trans))
	140	(logf (string-append "downloading "
	141	(cdr (assoc 'filename sr))
	142	" from "
	143	(cadr (cdr (assoc 'peer sr)))
	144	", "
	145	(number->string (cdr (assoc 'size sr)))
	146	" bytes (id "
	147	(number->string id)
	148	", "
	149	(number->string (cdr (assoc 'slots sr)))
	150	" slots), timing out in "
	151	(number->string (max 10 (* (cdr (assoc 'resptime sr)) 2)))
	152	" seconds"))))
	153	(set! lastdl (current-time))
	154	)
	155
	156	(define (disablepeer peer)
	157	(let ((newglist '()) (numrem 0))
	158	(for-each (lambda (g)
	159	(let ((newlist '()))
	160	(for-each (lambda (o)
	161	(if (not (equal? (cdr (assoc 'peer o)) peer))
	162	(set! newlist (cons o newlist))
	163	(set! numrem (+ numrem 1))))
	164	(cdr g))
	165	(if (not (eq? newlist '()))
	166	(set! newglist (cons (cons (car g) (sort newlist sr-less?)) newglist)))))
	167	sr)
	168	(set! sr (sort newglist srg-less?))
	169	(logf (string-append "disabled " (cadr peer) " and removed " (number->string numrem) " search results")))
	170	(let* ((dpa (assoc peer dpeers)) (dp (and (pair? dpa) (cdr dpa))))
	171	(if dp
	172	(set-cdr! (assoc 'time dp) (current-time))
	173	(set! dpeers (cons (cons peer (list (cons 'time (current-time))
	174	(cons 'peer peer)))
	175	dpeers))))
	176	)
	177
	178	(define (checktrans)
	179	(let ((time (current-time)))
	180	(for-each (lambda (o)
	181	(if (and (memq (cdr (assoc 'state (cdr o))) '(wait hs))
	182	(> (- time (cdr (assoc 'lastprog (cdr o)))) (max 10 (* (cdr (assoc 'resptime (cdr o))) 2))))
	183	(begin (logf (string-append "transfer " (number->string (car o)) " timing out"))
	184	(dc-ecmd-assert 200 "cancel" (car o))
185	(disablepeer (cdr (assoc 'peer (cdr o))))
ecd6e23d	186	(set! trans (assq-remove! trans (car o)))
ecd6e23d	187	(write-info-file)))
d3372da9	188	(if (and (eq? (cdr (assoc 'state (cdr o))) 'main)
	189	(> (- time (cdr (assoc 'lastprog (cdr o)))) 60))
	190	(begin (logf (string-append "transfer " (number->string (car o)) " seems to have stalled"))
	191	(dc-ecmd-assert 200 "cancel" (car o))
ecd6e23d	192	(set! trans (assq-remove! trans (car o)))
ecd6e23d	193	(write-info-file)))
d3372da9	194	(if (and (eq? (cdr (assoc 'state (cdr o))) 'main)
	195	(> (- (cdr (assoc 'lastprog (cdr o))) (cdr (assoc 'lasttime (cdr o)))) 20))
	196	(begin (set-cdr! (assoc 'curspeed (cdr o))
	197	(/ (- (cdr (assoc 'curpos (cdr o))) (cdr (assoc 'lastpos (cdr o))))
	198	(- (cdr (assoc 'lastprog (cdr o))) (cdr (assoc 'lasttime (cdr o))))))
	199	(set-cdr! (assoc 'lastpos (cdr o)) (cdr (assoc 'curpos (cdr o))))
ecd6e23d	200	(set-cdr! (assoc 'lasttime (cdr o)) (cdr (assoc 'lastprog (cdr o))))
ecd6e23d	201	(write-info-file))))
d3372da9	202	trans))
	203	)
	204
	205	(define (write-info-file)
	206	(if (assoc 'info-file session)
	207	(let ((op (open-output-file (cdr (assoc 'info-file session)))))
	208	(write (list (cons 'numdl (length trans))
	209	(cons 'lastdl lastdl)
	210	(cons 'availsr info-numavail)
	211	(cons 'realsr info-numreal)
	212	(cons 'totalsr info-numtotal)
	213	(cons 'lastsrch lastsearch)
94b2ada1	214	(cons 'srcheta info-searcheta)
94b2ada1	215	(cons 'srchmode (cdr (assoc 'search-mode session))))
d3372da9	216	op)
	217	(newline op)
	218	(close-port op))))
	219
	220	(define (parseresults)
	221	(logf (string-append "entering parseresults with "
	222	(number->string
	223	(apply + (map (lambda (o) (length (cdr o))) sr)))
	224	" results in "
	225	(number->string (length sr))
	226	" sizes"))
	227	(let ((retval #t) (numreal 0) (numtotal 0) (numavail 0))
	228	(catch 'ret
	229	(lambda ()
	230	(and (eq? sr '()) (throw 'ret #f))
	231	(let ((numrem 0) (countrem 0) (newglist '()))
	232	(for-each (lambda (g)
	233	(let ((newlist '()))
	234	(for-each (lambda (o)
	235	(if (< (- (current-time) (cdr (assoc 'recvtime o))) 300)
	236	(set! newlist (cons o newlist))
	237	(set! countrem (+ countrem 1))))
	238	(cdr g))
	239	(if (> (length newlist) 0)
	240	(set! newglist (cons (cons (car g) (sort newlist sr-less?)) newglist))
	241	(set! numrem (+ numrem 1)))))
	242	sr)
	243	(set! sr (sort newglist srg-less?))
	244	(if (> countrem 0)
	245	(logf (string-append "removed " (number->string countrem) " time-outed results and " (number->string numrem) " entire sizes"))))
	246	(let ((numrem 0) (newlist '()))
	247	(for-each (lambda (o)
	248	(if (> (- (current-time) (cdr (assoc 'time o))) 1800)
	249	(set! numrem (+ numrem 1))
	250	(set! newlist (cons o newlist))))
	251	dpeers)
	252	(set! dpeers newlist)
	253	(logf (string-append "re-enabled " (number->string numrem) " disabled users")))
	254	(let ((numrem 0) (countrem 0) (newglist '()))
	255	(for-each (lambda (g)
	256	(let ((newlist '()))
	257	(for-each (lambda (o)
	258	(if (not (assoc (cdr (assoc 'peer o)) dpeers))
	259	(set! newlist (cons o newlist))
	260	(set! countrem (+ countrem 1))))
	261	(cdr g))
	262	(if (> (length newlist) 0)
	263	(set! newglist (cons (cons (car g) (sort newlist sr-less?)) newglist))
	264	(set! numrem (+ numrem 1)))))
	265	sr)
	266	(set! sr (sort newglist srg-less?))
	267	(if (> countrem 0)
	268	(logf (string-append "removed " (number->string countrem) " results with disabled peers and " (number->string numrem) " entire sizes"))))
	269	(and (eq? sr '()) (throw 'ret #f))
	270	(set! numtotal (apply + (map (lambda (o) (length (cdr o))) sr)))
	271	(let* ((maxsize (apply max (map (lambda (o) (length (cdr o))) sr)))
	272	(minsize (/ maxsize 3)))
	273	(let ((numrem 0) (countrem 0))
	274	(for-each (lambda (o) (if (< (length (cdr o)) minsize)
	275	(begin (set! countrem (+ countrem (length (cdr o))))
	276	(set! numrem (+ numrem 1)))))
	277	sr)
	278	(if (> countrem 0)
	279	(logf (string-append "will disregard " (number->string countrem) " results from " (number->string numrem) " sizes due to popularity lack")))
280	(set! numreal (- numtotal countrem)))
281	(let ((numrem 0) (numrrem 0))
282	(for-each (lambda (g)
283	(for-each (lambda (o)
284	(if (< (cdr (assoc 'slots o)) 1)
285	(begin (set! numrem (+ numrem 1))
286	(if (>= (length (cdr g)) minsize)
287	(set! numrrem (+ numrrem 1))))))
288	(cdr g)))
289	sr)
290	(if (> numrem 0)
291	(logf (string-append (number->string numrem) " results had no slots")))
292	(set! numavail (- numreal numrrem)))
293	(for-each (lambda (g)
294	(if (>= (length (cdr g)) minsize)
295	(catch 'found
296	(lambda ()
297	(for-each (lambda (o)
298	(and (> (cdr (assoc 'slots o)) 0)
299	(throw 'found o)))
300	(cdr g)))
301	(lambda (sig sr)
302	(let ((tr (gettrbysize (cdr (assoc 'size sr)))))
303	(if (not tr)
304	(if (< (length trans) (cdr (assoc 'maxtrans session)))
305	(download sr))
306	(if (and (cdr (assoc 'curspeed tr))
307	(not (equal? (cdr (assoc 'peer sr)) (cdr (assoc 'peer tr))))
308	(> (- (or (cdr (assoc 'speed sr)) (defspeed sr)) (cdr (assoc 'curspeed tr))) 10000))
309	(begin (logf (string-append "abandoning transfer "
310	(number->string (cdr (assoc 'id tr)))
311	" for possible faster sender"))
312	(dc-ecmd-assert 200 "cancel" (cdr (assoc 'id tr)))
313	(set! trans (assq-remove! trans (cdr (assoc 'id tr))))
314	(download sr)))))))))
315	sr)
316	)
317	)
318	(lambda (sig ret)
319	(set! retval ret)
320	))
321	(set! info-numavail numavail)
322	(set! info-numreal numreal)
323	(set! info-numtotal numtotal)
ecd6e23d	324	(write-info-file)
d3372da9	325	retval)
	326	)
	327
3b0de0fd	328	(define (handlesr filename fnet peer size slots resptime hash)
2bb57f49	329	(if (eq? (cdr (assoc 'search-mode session)) 'wait)
	330	(begin (set-cdr! (assoc 'search-mode session) 'normal)
	331	(logf "reverting to normal mode")))
d3372da9	332	(let ((cl (or (assoc size sr)
	333	(let ((newp (cons size '()))) (set! sr (append sr (list newp))) newp)))
	334	(newsr (list
	335	(cons 'filename filename)
	336	(cons 'peer (list fnet peer))
	337	(cons 'size size)
	338	(cons 'slots slots)
	339	(cons 'resptime resptime)
	340	(cons 'speed (getspeed peer))
3b0de0fd	341	(cons 'hash hash)
d3372da9	342	(cons 'recvtime (current-time))
	343	(cons 'dis #f)))
	344	(newlist '()))
	345	(for-each (lambda (o) (if (not (and (equal? (cdr (assoc 'filename o)) filename)
	346	(equal? (cdr (assoc 'peer o)) (list fnet peer))))
	347	(set! newlist (cons o newlist))))
	348	(cdr cl))
	349	(set-cdr! cl (sort (cons newsr newlist) sr-less?))
	350	)
	351	)
	352
	353	; XXX: Redefine to go through the server, once that is implemented
	354	(define (getspeed username)
	355	(catch 'system-error
	356	(lambda ()
	357	(let* ((port (open-input-file (string-append (getenv "HOME") "/dc/users/" username))) (avg 0) (numdls (string->number (read-line port))) (max (string->number (read-line port))) (numents (string->number (read-line port))))
	358	(do ((i 0 (+ i 1))) ((= i numents) (close-port port) (/ avg numents)) (set! avg (+ avg (string->number (read-line port)))))
	359	))
	360	(lambda args
	361	#f
	362	)
	363	)
	364	)
	365
	366	(define (validate-session session)
	367	(catch 'wrong-type-arg
	368	(lambda ()
	369	(and
	370	(assoc 'sexpr session)
	371	(assoc 'prio session)
	372	(assoc 'maxtrans session)
	373	#t
	374	)
	375	)
	376	(lambda (key . args)
	377	(display "Session data is not an a-list\n" (current-error-port))
	378	#f)
	379	)
	380	)
	381
	382	(define (autodl-main args)
aa82fda0	383	(let ((dc-server #f) (done #f) (retval 0) (filterexit ""))
a8e6bb81	384	(let ((getopt (make-getopt (cdr args) "whs:S:e:p:t:a:I:E:")) (arg #f))
d3372da9	385	(do ((arg (getopt) (getopt))) ((not (and (pair? arg) (char? (car arg)))) (set! args arg))
	386	(cond ((eq? (car arg) #\h)
	387	(begin (display "usage: autodl [-s server] -S sessfile\n" (current-error-port))
d30cc4bc	388	(display " autodl [-w] [-s server] -e search-expression [-p prio] [-t tag] [-a userarg]\n" (current-error-port))
d3372da9	389	(display " autodl [-s server]\n" (current-error-port))
	390	(display " autodl -h\n" (current-error-port))
	391	(exit 0)))
	392	((eq? (car arg) #\s)
	393	(set! dc-server (cdr arg)))
	394	((eq? (car arg) #\S)
	395	(let ((port (open-file (cdr arg)))) (set! session (read port)) (close-port port)))
	396	((eq? (car arg) #\p)
	397	(let ((c (assoc 'prio session)))
	398	(if c (set-cdr! c (cdr arg))
	399	(set! session (cons (cons 'prio (cdr arg)) session)))))
	400	((eq? (car arg) #\t)
	401	(let ((c (assoc 'tag session)))
	402	(if c (set-cdr! c (cdr arg))
	403	(set! session (cons (cons 'tag (cdr arg)) session)))))
	404	((eq? (car arg) #\a)
	405	(let ((c (assoc 'uarg session)))
	406	(if c (set-cdr! c (cdr arg))
	407	(set! session (cons (cons 'uarg (cdr arg)) session)))))
	408	((eq? (car arg) #\I)
	409	(let ((c (assoc 'info-file session)))
	410	(if c (set-cdr! c (cdr arg))
	411	(set! session (cons (cons 'info-file (cdr arg)) session)))))
aa82fda0	412	((eq? (car arg) #\E)
	413	(let ((c (assoc 'estat-file session)))
	414	(if c (set-cdr! c (cdr arg))
	415	(set! session (cons (cons 'estat-file (cdr arg)) session)))))
d3372da9	416	((eq? (car arg) #\e)
d3372da9	417	(set! session (cons (cons 'sexpr (dc-lexsexpr (cdr arg))) session)))
d30cc4bc	418	((eq? (car arg) #\w)
d30cc4bc	419	(set! session (cons '(search-mode . wait) session)))
d3372da9	420	)
	421	)
	422	)
	423	(if (eq? session '()) (begin (if (isatty? (current-input-port)) (display "Enter session data (s-expr):\n" (current-error-port))) (set! session (read))))
	424	(if (not (assoc 'prio session))
	425	(set! session (cons '(prio . 10) session)))
	426	(if (not (assoc 'maxtrans session))
	427	(set! session (cons '(maxtrans . 1) session)))
d30cc4bc	428	(if (not (assoc 'search-mode session))
53acfa81	429	(set! session (cons '(search-mode . normal) session)))
d3372da9	430	(if (not (validate-session session)) (begin (display "Invalid session!\n" (current-error-port)) (exit 1)))
	431	(if (not dc-server) (set! dc-server (getenv "DCSERVER")))
	432	(if (not dc-server) (set! dc-server "localhost"))
	433	(catch 'system-error
	434	(lambda ()
	435	(dc-c&l #t dc-server #t))
	436	(lambda (key . args)
	437	(logf (string-append "could not connect to server: " (apply format #f (cadr args) (caddr args))))
	438	(exit 2)))
c6a77cc5	439	(dc-ecmd-assert 200 "notify" "trans:act" "on" "trans:prog" "on" "srch:act" "on")
d3372da9	440	(for-each (lambda (sig) (sigaction sig (lambda (sig) (throw 'sig sig)))) (list SIGINT SIGTERM SIGHUP))
	441	(catch 'sig
	442	(lambda ()
	443	(while #t
	444	(if (and (not (= lastsearch -1)) (wanttosearch))
	445	(begin
	446	(if (not (= srchid -1))
	447	(dc-ecmd "cansrch" srchid))
	448	(let* ((resp (apply dc-ecmd-assert (append (list '(200 501 509) "search" "prio" (number->string (cdr (assoc 'prio session))) "all") (cdr (assoc 'sexpr session)))))
	449	(ires (dc-intresp resp))
	450	(eres (dc-extract resp)))
	451	(case (cdr (assoc 'code eres))
	452	((200)
	453	(begin (set! srchid (car ires))
	454	(logf (string-append "search scheduled in " (number->string (cadr ires)) " seconds (id " (number->string srchid) ")"))
	455	(set! info-searcheta (+ (current-time) (cadr ires)))
ecd6e23d	456	(set! lastsearch -1)
ecd6e23d	457	(write-info-file)))
d3372da9	458	((501)
	459	(begin (set! srchid -1)
	460	(logf (string-append "no fnetnodes available to search on"))
	461	(set! lastsearch (current-time))))
	462	((509)
	463	(begin (logf "illegal search expression")
	464	(set! done #t)
	465	(set! retval 3)
	466	(throw 'sig 0)))))))
	467	(checktrans)
	468	(if (> (- (current-time) lastparse) 20)
	469	(begin (parseresults)
	470	(set! lastparse (current-time))))
d3372da9	471	(dc-select 10000)
	472	(while (let ((resp (dc-getresp)))
	473	(if resp
	474	(begin
	475	(let* ((er (dc-extract resp)) (code (cdr (assoc 'code er))) (cmd (cdr (assoc 'cmd er))))
	476	(cond
	477	((equal? cmd ".notify")
	478	(case code
	479	((611) ; Transfer state change
	480	(let ((ires (dc-intresp resp)) (tr #f))
	481	(if (and ires (assoc (car ires) trans))
	482	(begin (set! tr (cdr (assoc (car ires) trans)))
	483	(set-cdr! (assoc 'state tr)
	484	(cdr (assoc (cadr ires) '((0 . wait) (1 . hs) (2 . main) (3 . done)))))
	485	(set-cdr! (assoc 'lastprog tr) (current-time))))))
	486	((614) ; Transfer error
	487	(let ((ires (dc-intresp resp)))
	488	(if (and ires (assoc (car ires) trans))
	489	(begin (logf (string-append "transfer " (number->string (car ires)) " encountered error " (number->string (cadr ires))))
	490	(dc-ecmd-assert 200 "cancel" (car ires))
	491	(let ((tr (cdr (assoc (car ires) trans))))
	492	(disablepeer (cdr (assoc 'peer tr))))
	493	(set! trans (assq-remove! trans (car ires)))))))
	494	((615) ; Transfer progress
	495	(let ((ires (dc-intresp resp)) (tr #f))
	496	(if (and ires (assoc (car ires) trans))
	497	(begin (set! tr (cdr (assoc (car ires) trans)))
	498	(set-cdr! (assoc 'curpos tr) (cadr ires))
	499	(set-cdr! (assoc 'lastprog tr) (current-time))))))
	500	((617) ; Transfer destroyed
	501	(let* ((ires (dc-intresp resp)) (tr (and ires (assoc (car ires) trans))))
	502	(if tr
	503	(begin (if (eq? (cdr (assoc 'state (cdr tr))) 'done)
2fc2772d	504	(begin (logf (string-append "transfer " (number->string (car ires)) " done (" (cadr ires) ")"))
d3372da9	505	(set! trans (assq-remove! trans (car ires)))
d3372da9	506	(set! done #t)
2fc2772d	507	(set! filterexit (cadr ires))
d3372da9	508	(throw 'sig 0))
	509	(begin (logf (string-append "transfer " (number->string (car ires)) " disappeared"))
	510	(set! trans (assq-remove! trans (car ires)))))))))
	511	((620) ; Search rescheduled
	512	(let ((ires (dc-intresp resp)))
	513	(if (and ires (= (car ires) srchid))
	514	(begin (set! info-searcheta (+ (current-time) (cadr ires)))
d30cc4bc	515	(logf (string-append "search rescheduled to T+" (number->string (cadr ires))))
d30cc4bc	516	(write-info-file)))))
d3372da9	517	((621) ; Search committed
	518	(let ((ires (dc-intresp resp)))
	519	(if (and ires (= (car ires) srchid))
	520	(begin (logf "search committed")
	521	(set! info-searcheta 0)
d30cc4bc	522	(set! lastsearch (current-time))
d30cc4bc	523	(write-info-file)))))
d3372da9	524	((622) ; Search result
d3372da9	525	(let ((ires (list->vector (dc-intresp resp))))
3b0de0fd	526	(if (and ires (= (vector-ref ires 0) srchid)) (apply handlesr (map (lambda (n) (vector-ref ires n)) '(1 2 3 4 5 7 8))))))
d3372da9	527
	528	)
	529	)
	530
	531	)
	532	)
	533	#t)
	534	#f)
	535	)
	536	#t
	537	)
	538	)
	539	)
	540	(lambda (key sig)
	541	(logf (string-append "interrupted by signal " (number->string sig)))
	542	(if (not done)
	543	(set! retval 1)))
	544	)
	545	(logf "quitting...")
	546	(catch 'sig
	547	(lambda ()
	548	(if (dc-connected)
	549	(begin (for-each (lambda (o)
	550	(dc-qcmd (list "cancel" (car o))))
	551	trans)
	552	(if (assoc 'info-file session)
	553	(catch 'system-error
	554	(lambda ()
	555	(delete-file (cdr (assoc 'info-file session))))
	556	(lambda (key . args) #t)))
	557	(if (and done (assoc 'tag session))
	558	(dc-qcmd (list "filtercmd" "rmtag" (cdr (assoc 'tag session)))))
	559	(if (not (= srchid -1))
	560	(dc-qcmd (list "cansrch" srchid)))
	561	(dc-qcmd '("quit"))
	562	(while (dc-connected) (dc-select))
	563	)))
	564	(lambda (key sig)
	565	(logf "forcing quit")))
aa82fda0	566	(if (assoc 'estat-file session)
	567	(let ((op (open-output-file (cdr (assoc 'estat-file session)))))
	568	(write filterexit op)
	569	(newline op)
	570	(close-port op)))
d3372da9	571	(exit retval)
	572	)
	573	)
	574
	575	(setlocale LC_ALL "")
	576	(autodl-main (command-line))