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; Derived from plai/web/server, which was based on an older version of this
; Also derived from planet/untyped/instaservlet
#lang racket/base
(require racket/contract
racket/list
racket/serialize
racket/runtime-path
(only-in racket/tcp listen-port-number?)
(for-syntax racket/base))
(require net/url
web-server/managers/lru
web-server/managers/manager
web-server/configuration/namespace
web-server/http
web-server/stuffers
web-server/configuration/responders
web-server/private/mime-types
web-server/servlet/setup
web-server/servlet/servlet-structs
web-server/servlet-dispatch
(prefix-in lift: web-server/dispatchers/dispatch-lift)
(prefix-in fsmap: web-server/dispatchers/filesystem-map)
(prefix-in sequencer: web-server/dispatchers/dispatch-sequencer)
(prefix-in files: web-server/dispatchers/dispatch-files)
(prefix-in filter: web-server/dispatchers/dispatch-filter)
(prefix-in servlets: web-server/dispatchers/dispatch-servlets)
(prefix-in log: web-server/dispatchers/dispatch-log))
(define (quit-server sema)
(lift:make
(lambda (request)
(semaphore-post sema)
(response/xexpr
`(html (head (title "Server Stopped")
(link ([rel "stylesheet"] [href "/error.css"])))
(body (div ([class "section"])
(div ([class "title"]) "Server Stopped")
(p "Return to DrRacket."))))))))
(define-runtime-path default-web-root "default-web-root")
(provide/contract
[serve/servlet (((request? . -> . can-be-response?))
(#:connection-close? boolean?
#:command-line? boolean?
#:launch-browser? boolean?
#:quit? boolean?
#:banner? boolean?
#:listen-ip (or/c false/c string?)
#:port listen-port-number?
#:max-waiting exact-nonnegative-integer?
#:ssl? boolean?
#:ssl-cert (or/c false/c path-string?)
#:ssl-key (or/c false/c path-string?)
#:manager manager?
#:servlet-namespace (listof module-path?)
#:server-root-path path-string?
#:stateless? boolean?
#:stuffer (stuffer/c serializable? bytes?)
#:extra-files-paths (listof path-string?)
#:servlets-root path-string?
#:servlet-current-directory path-string?
#:file-not-found-responder (request? . -> . can-be-response?)
#:servlet-loading-responder (url? any/c . -> . can-be-response?)
#:servlet-responder (url? any/c . -> . can-be-response?)
#:mime-types-path path-string?
#:servlet-path string?
#:servlet-regexp regexp?
#:log-file (or/c false/c path-string?)
#:log-format (or/c log:log-format/c log:format-req/c))
. ->* .
void)])
;; utility for conveniently chaining dispatchers
(define (dispatcher-sequence . dispatchers)
(let loop ([ds dispatchers] [r '()])
(cond [(null? ds) (apply sequencer:make (reverse r))]
[(not (car ds)) (loop (cdr ds) r)]
[(list? (car ds)) (loop (append (car ds) (cdr ds)) r)]
[else (loop (cdr ds) (cons (car ds) r))])))
(define (serve/servlet
start
#:connection-close?
[connection-close? #f]
#:command-line?
[command-line? #f]
#:launch-browser?
[launch-browser? (not command-line?)]
#:quit?
[quit? (not command-line?)]
#:banner?
[banner? (not command-line?)]
#:listen-ip
[listen-ip "127.0.0.1"]
#:port
[the-port 8000]
#:max-waiting
[max-waiting 511]
#:manager
[manager
(make-threshold-LRU-manager
(lambda (request)
(response/xexpr
`(html (head (title "Page Has Expired."))
(body (p "Sorry, this page has expired. Please go back.")))))
(* 128 1024 1024))]
#:servlet-path
[servlet-path "/servlets/standalone.rkt"]
#:servlet-regexp
[servlet-regexp (regexp (format "^~a$" (regexp-quote servlet-path)))]
#:stateless?
[stateless? #f]
#:stuffer
[stuffer default-stuffer]
#:servlet-namespace
[servlet-namespace empty]
#:server-root-path
[server-root-path default-web-root]
#:extra-files-paths
[extra-files-paths (list (build-path server-root-path "htdocs"))]
#:servlets-root
[servlets-root (build-path server-root-path "htdocs")]
#:servlet-current-directory
[servlet-current-directory servlets-root]
#:file-not-found-responder
[file-not-found-responder
(gen-file-not-found-responder
(build-path server-root-path "conf" "not-found.html"))]
#:servlet-loading-responder
[responders-servlet-loading servlet-loading-responder]
#:servlet-responder
[responders-servlet servlet-error-responder]
#:mime-types-path
[mime-types-path (let ([p (build-path server-root-path "mime.types")])
(if (file-exists? p)
p
(build-path default-web-root "mime.types")))]
#:ssl?
[ssl? #f]
#:ssl-cert
[ssl-cert (and ssl? (build-path server-root-path "server-cert.pem"))]
#:ssl-key
[ssl-key (and ssl? (build-path server-root-path "private-key.pem"))]
#:log-file
[log-file #f]
#:log-format
[log-format 'apache-default])
(define (dispatcher sema)
(dispatcher-sequence
(and log-file (log:make #:format
(if (symbol? log-format)
(log:log-format->format log-format)
log-format)
#:log-path log-file))
(and quit? (filter:make #rx"^/quit$" (quit-server sema)))
(dispatch/servlet
start
#:regexp servlet-regexp
#:stateless? stateless?
#:stuffer stuffer
#:current-directory servlet-current-directory
#:manager manager
#:responders-servlet-loading
responders-servlet-loading
#:responders-servlet
responders-servlet)
(let-values ([(clear-cache! url->servlet)
(servlets:make-cached-url->servlet
(fsmap:filter-url->path
#rx"\\.(ss|scm|rkt|rktd)$"
(fsmap:make-url->valid-path
(fsmap:make-url->path servlets-root)))
(make-default-path->servlet
#:make-servlet-namespace
(make-make-servlet-namespace #:to-be-copied-module-specs servlet-namespace)))])
(servlets:make url->servlet))
(map (lambda (extra-files-path)
(files:make
#:url->path (fsmap:make-url->path extra-files-path)
#:path->mime-type (make-path->mime-type mime-types-path)
#:indices (list "index.html" "index.htm")))
extra-files-paths)
(files:make
#:url->path (fsmap:make-url->path (build-path server-root-path "htdocs"))
#:path->mime-type (make-path->mime-type mime-types-path)
#:indices (list "index.html" "index.htm"))
(lift:make (compose any->response file-not-found-responder))))
(serve/launch/wait
dispatcher
#:connection-close? connection-close?
#:launch-path (if launch-browser? servlet-path #f)
#:banner? banner?
#:listen-ip listen-ip
#:port the-port
#:max-waiting max-waiting
#:ssl-cert ssl-cert
#:ssl-key ssl-key))
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