-
-(define (deliver-message msg)
- (print "Message delivered:")
- (print " * From: " (message-from msg))
- (print " * To: " (message-to msg))
- (print " * Text: " (message-text msg)))
-
-(run-server (make-config 25))
+
+
+;;; Message delivery
+;;
+
+(define (get-to-addresses config)
+ (map (lambda (p) (cons
+ (conc "<" (car p) "@" (config-host config) ">")
+ (cdr p)))
+ (map (lambda (file) (cons (pathname-file file) file))
+ (glob (conc (config-spool-dir config) "/*")))))
+
+(define (remove-angle-brackets addr)
+ (let ((left-idx (substring-index "<" addr))
+ (right-idx (substring-index ">" addr)))
+ (substring addr (+ left-idx 1) right-idx)))
+
+(define (deliver-message msg config)
+ (let ((dest (assoc (message-to msg) (get-to-addresses config))))
+ (if dest
+ (begin
+ (with-output-to-file (cdr dest)
+ (lambda ()
+ (print "\nFrom " (remove-angle-brackets (message-from msg)))
+ (print (message-text msg)))
+ #:append)
+ (print "Message DELIVERED:"))
+ (print "Message REJECTED:"))
+ (print " * From: " (message-from msg))
+ (print " * To: " (message-to msg))))
+
+
+;;; Command line argument parsing
+;;
+
+(define (print-usage progname)
+ (print "Usage: " progname " hostname [port [spooldir]]"))
+
+(define (main)
+ (let ((progname (pathname-file (car (argv))))
+ (args (cdr (argv)))
+ (config (make-config "" 25 "/var/spool/mail")))
+ (if (null? args)
+ (print-usage progname)
+ (begin
+ (config-host-set! config (car args))
+ (unless (null? (cdr args))
+ (config-port-set! config (string->number (cadr args)))
+ (unless (null? (cddr args))
+ (config-spool-dir-set! (caddr args))))
+ (run-server config)))))
+
+(main)
+
+;; (run-server (make-config "thelambdalab.xyz" 2525 "/var/spool/mail"))