57 lines
2.1 KiB
Scheme
57 lines
2.1 KiB
Scheme
#lang scheme/base
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(require mzlib/cmdline
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mzlib/pregexp)
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(require "../configuration/configuration-table.ss"
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(except-in "../web-server.ss" serve)
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"../web-config-unit.ss")
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; this is used by launchers
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; extract-flag : sym (listof (cons sym alpha)) alpha -> alpha
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(define (extract-flag name flags default)
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(let ([x (assq name flags)])
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(if x
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(cdr x)
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default)))
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(define configuration@
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(parse-command-line
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"plt-web-server"
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(current-command-line-arguments)
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`((once-each
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[("-f" "--configuration-table")
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,(lambda (flag file-name)
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(cond
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[(not (file-exists? file-name))
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(error 'web-server "configuration file ~s not found" file-name)]
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[(not (memq 'read (file-or-directory-permissions file-name)))
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(error 'web-server "configuration file ~s is not readable" file-name)]
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[else (cons 'config (string->path file-name))]))
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("Use an alternate configuration table" "file-name")]
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[("-p" "--port")
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,(lambda (flag port)
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(cons 'port (string->number port)))
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("Use an alternate network port." "port")]
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[("-a" "--ip-address")
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,(lambda (flag ip-address)
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; note the double backslash I initially left out. That's a good reason to use Olin's regexps.
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(let ([addr (pregexp-split "\\." ip-address)])
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(if (and (= 4 (length addr))
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(andmap (lambda (s)
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(let ([n (string->number s)])
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(and (integer? n) (<= 0 n 255))))
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addr))
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(cons 'ip-address ip-address)
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(error 'web-server "ip-address expects a numeric ip-address (i.e. 127.0.0.1); given ~s" ip-address))))
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("Restrict access to come from ip-address" "ip-address")]))
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(lambda (flags)
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(configuration-table->web-config@
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(extract-flag 'config flags default-configuration-table-path)
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#:port (extract-flag 'port flags #f)
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#:listen-ip (extract-flag 'ip-address flags #f)))
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'()))
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(define (serve)
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(serve/web-config@ configuration@))
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(provide serve)
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