adding web-server-setup script

svn: r2107
This commit is contained in:
Jay McCarthy 2006-02-03 18:12:09 +00:00
parent fbd6d0f187
commit 0b83c1154f
7 changed files with 204 additions and 145 deletions

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@ -0,0 +1,58 @@
(module configuration-util mzscheme
(require (lib "file.ss")
(lib "pretty.ss"))
(require "configuration-table-structs.ss")
(provide (all-defined))
; write-configuration-table : configuration-table path -> void
; writes out the new configuration file
(define (write-configuration-table new configuration-path)
(write-to-file
configuration-path
`((port ,(configuration-table-port new))
(max-waiting ,(configuration-table-max-waiting new))
(initial-connection-timeout ,(configuration-table-initial-connection-timeout new))
(default-host-table
,(format-host (configuration-table-default-host new)))
(virtual-host-table
. ,(map (lambda (h) (list (car h) (format-host (cdr h))))
(configuration-table-virtual-hosts new))))))
; format-host : host-table
(define (format-host host)
(let ([t (host-table-timeouts host)]
[p (host-table-paths host)]
[m (host-table-messages host)])
`(host-table
; more here - configure
(default-indices "index.html" "index.htm")
; more here - configure
(log-format parenthesized-default)
(messages
(servlet-message ,(messages-servlet m))
(authentication-message ,(messages-authentication m))
(servlets-refreshed ,(messages-servlets-refreshed m))
(passwords-refreshed ,(messages-passwords-refreshed m))
(file-not-found-message ,(messages-file-not-found m))
(protocol-message ,(messages-protocol m))
(collect-garbage ,(messages-collect-garbage m)))
(timeouts
(default-servlet-timeout ,(timeouts-default-servlet t))
(password-connection-timeout ,(timeouts-password t))
(servlet-connection-timeout ,(timeouts-servlet-connection t))
(file-per-byte-connection-timeout ,(timeouts-file-per-byte t))
(file-base-connection-timeout ,(timeouts-file-base t)))
(paths
(configuration-root ,(paths-conf p))
(host-root ,(paths-host-base p))
(log-file-path ,(paths-log p))
(file-root ,(paths-htdocs p))
(servlet-root ,(paths-servlet p))
(mime-types ,(paths-mime-types p))
(password-authentication ,(paths-passwords p))))))
; write-to-file : str TST -> void
(define (write-to-file file-name x)
(call-with-output-file file-name
(lambda (out) (pretty-print x out))
'truncate)))

View File

@ -11,6 +11,7 @@
(lib "contract.ss"))
(provide complete-configuration
get-configuration
build-developer-configuration
build-developer-configuration/vhosts ;; added 2/3/05 by Jacob
default-configuration-table-path

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@ -11,8 +11,9 @@
default-configuration-table-path)
(lib "configuration-table-structs.ss" "web-server")
(lib "parse-table.ss" "web-server")
(lib "configuration-util.ss" "web-server")
(all-except (lib "util.ss" "web-server") translate-escapes))
;; FIX
; - fuss with changing absolute paths into relative ones internally
; - move old config files instead of copying default ones
@ -24,46 +25,46 @@
; - editing an individual path
; - change all configuration paths (in the configure servlet and in the server) to
; use a platform independent representation (i.e. a listof strings)
; servlet-maker : str -> (unit/sig servlet^ -> ())
(define (servlet-maker default-configuration-path)
(unit/sig ()
(import servlet^)
(define CONFIGURE-SERVLET-NAME "configure.ss")
(define WIDE "70")
(adjust-timeout! (* 12 60 60))
(error-print-width 800) ; 10-ish lines
; passwords = (listof realm)
; realm = (make-realm str str (listof user-pass))
(define-struct realm (name pattern allowed))
; user-pass = (make-user-pass sym str)
(define-struct user-pass (user pass))
(define doc-dir "Defaults/documentation")
(define edit-host-button-name "Edit Minor Details")
; build-footer : str -> html
(define (build-footer base)
(let ([scale (lambda (n) (number->string (round (/ n 4))))])
`(p "Powered by "
(a ([href "http://www.plt-scheme.org/"])
(img ([width ,(scale 211)] [height ,(scale 76)]
[src ,(string-append base doc-dir "/plt-logo.gif")]))))))
[src ,(string-append base doc-dir "/plt-logo.gif")]))))))
(define footer (build-footer "/"))
; access-error-page : html
(define access-error-page
`(html (head (title "Web Server Configuration Access Error"))
(body ([bgcolor "white"])
(p "You must connect to the configuration tool from the machine the server runs on using 127.0.0.1 for the host part of the URL.")
,footer)))
; permission-error-page : path -> html
(define (permission-error-page configuration-path)
`(html (head (title "Web Server Configuration Permissions Error"))
@ -71,27 +72,27 @@
(p "You must have read and write access to "
(code ,(path->string configuration-path))
" in order to configure the server."))))
; check-ip-address : request -> request
(define (check-ip-address request)
(unless (string=? "127.0.0.1" (request-host-ip request))
(send/finish access-error-page))
request)
(check-ip-address initial-request)
(define web-base (directory-part default-configuration-path))
; more here - abstract with static pages?
(define web-server-icon
`(img ([src ,(string-append "/" doc-dir "/web-server.gif")]
;[width "123"] [height "115"]
[width "61"] [height "57"])))
; interact : (str -> response) -> bindings
(define (interact page)
(request-bindings (check-ip-address (send/suspend page))))
; choose-configuration-file : -> doesn't
(define (choose-configuration-file)
(let ([configuration-path (ask-for-configuration-path)])
@ -109,7 +110,7 @@
(ensure-directory-shallow base))
(copy-file default-configuration-path configuration-path))
(loop))))))
; copy-configuration-file : path -> html
(define (copy-configuration-file configuration-path)
(build-suspender
@ -120,14 +121,14 @@
"does not exist. Would you like to copy the default configuration to this "
"location?")
(center (input ([type "submit"] [name "ok"] [value "Copy"]))))))
; ask-for-configuration-path : -> path
(define (ask-for-configuration-path)
(build-path
(extract-binding/single
'path
(request-bindings (send/suspend configuration-path-page)))))
; configuration-path-page : str -> html
(define configuration-path-page
(build-suspender
@ -140,10 +141,10 @@
(blockquote (code ,(path->string default-configuration-path))))
(table (tr (th "Configuration path")
(td (input ([type "text"] [name "path"] [size ,WIDE]
[value ,(path->string default-configuration-path)]))))
[value ,(path->string default-configuration-path)]))))
(tr (td ([colspan "2"] [align "center"])
(input ([type "submit"] [name "choose-path"] [value "Select"]))))))))
; configure-top-level : path -> doesn't
(define (configure-top-level configuration-path)
(with-handlers ([exn:fail:filesystem:exists? send-exn])
@ -172,7 +173,7 @@
[else form-configuration])])
(write-configuration new-configuration configuration-path)
(loop new-configuration))))))
; switch-to-current-port : configuration-table -> (U #f configuration-table)
; doesn't work - the browser doesn't send the port and it wouldn't be reliable anyway
; perhaps the server could include it?
@ -185,11 +186,11 @@
(configuration-table-initial-connection-timeout old)
(configuration-table-default-host old)
(configuration-table-virtual-hosts old)))))
; send-exn : tst -> doesn't
(define (send-exn exn)
(send/back (exception-error-page exn)))
; reverse-assoc : a (listof (cons b a)) -> (U #f (cons b a))
(define (reverse-assoc x lst)
(cond
@ -197,13 +198,13 @@
[else (if (equal? x (cdar lst))
(car lst)
(reverse-assoc x (cdr lst)))]))
; add-virtual-host : configuration-table (listof str) -> configuration-table
(define (add-virtual-host conf existing-prefixes)
(update-hosts conf (cons (cons "my-host.my-domain.org"
(configuration-table-default-host conf))
(configuration-table-virtual-hosts conf))))
; update-hosts : configuration-table (listof (cons str host-table))
(define (update-hosts conf new-hosts)
(make-configuration-table
@ -212,13 +213,7 @@
(configuration-table-initial-connection-timeout conf)
(configuration-table-default-host conf)
new-hosts))
; write-to-file : str TST -> void
(define (write-to-file file-name x)
(call-with-output-file file-name
(lambda (out) (pretty-print x out))
'truncate))
; delete-hosts : configuration-table (listof str) -> configuration-table
; pre: (>= (length (configuration-table-virtual-hosts conf)) (max to-delete))
(define (delete-hosts conf to-delete)
@ -228,7 +223,7 @@
(update-hosts
conf
(drop (configuration-table-virtual-hosts conf) to-delete))))
; drop : (listof a) (listof str) -> (listof a)
; pre: (apply < to-delete)
; to delete the entries in to-filter indexed by to-delete
@ -239,7 +234,7 @@
[else (if (= i (car to-delete))
(loop (cdr to-filter) (cdr to-delete) (add1 i))
(cons (car to-filter) (loop (cdr to-filter) to-delete (add1 i))))])))
; configure-hosts : configuration-table (U #f nat) -> configuration-table
; n is either the virtual host number or #f for the default virtual host
(define (configure-hosts old n)
@ -261,7 +256,7 @@
(configuration-table-initial-connection-timeout old)
(configure-host (configuration-table-default-host old))
(configuration-table-virtual-hosts old))))
; configure-host : host-table -> host-table
(define (configure-host old)
(let* ([bindings (interact (request-new-host-table old))]
@ -277,10 +272,10 @@
(write-to-file password-path ''()))
(configure-passwords password-path)))
new))
(define restart-message
`((h3 (font ([color "red"]) "Restart the Web server to use the new settings."))))
; request-new-configuration-table : configuration-table configuration-table -> str -> html
(define (request-new-configuration-table old orig)
(build-suspender
@ -308,8 +303,8 @@
(th nbsp))
(tr (td ,"Default Host")
(td ,(make-field-size "text" 'default-host-root
(table->host-root (configuration-table-default-host old))
WIDE))
(table->host-root (configuration-table-default-host old))
WIDE))
(td ([align "center"])
(input ([type "submit"] [name "default"] [value ,edit-host-button-name])))
(td nbsp))
@ -334,11 +329,11 @@
(tr (td (input ([type "submit"] [name "configure"] [value "Update Configuration"])))))
(hr)
,footer)))
; table->host-root : host-table -> str
(define (table->host-root t)
(path->string (build-path-unless-absolute web-base (paths-host-base (host-table-paths t)))))
; gen-make-tr : nat -> xexpr sym str [xexpr ...] -> xexpr
(define (gen-make-tr size-n)
(let ([size-str (number->string size-n)])
@ -346,38 +341,38 @@
`(tr (td (a ([href ,(format "/~a/terms/~a.html" doc-dir tag)]) ,label))
(td ,(make-field-size "text" tag (format "~a" default-text) size-str))
. ,extra-tds))))
(define make-tr-num (gen-make-tr 20))
(define make-tr-str (gen-make-tr 70))
; make-field : str sym str -> xexpr
(define (make-field type label value)
(make-field-size type label value "30"))
; make-field-size : str sym str str -> xexpr
(define (make-field-size type label value size)
`(input ([type ,type] [name ,(symbol->string label)] [value ,value] [size ,size])))
; update-configuration : configuration-table bindings -> configuration-table
(define (update-configuration old bindings)
(let ([ubp (un-build-path web-base)]) ;; web-base returned by directory-part is a path
(make-configuration-table
(string->nat (extract-binding/single 'port bindings))
(string->nat (extract-binding/single 'waiting bindings))
(string->num (extract-binding/single 'time-initial bindings))
(update-host-root (configuration-table-default-host old)
(ubp (build-path (extract-binding/single 'default-host-root bindings))))
(map (lambda (h root pattern)
(cons pattern (update-host-root (cdr h) (ubp (build-path root)))))
(configuration-table-virtual-hosts old)
(extract-bindings 'host-roots bindings)
(extract-bindings 'host-regexps bindings)))))
(make-configuration-table
(string->nat (extract-binding/single 'port bindings))
(string->nat (extract-binding/single 'waiting bindings))
(string->num (extract-binding/single 'time-initial bindings))
(update-host-root (configuration-table-default-host old)
(ubp (build-path (extract-binding/single 'default-host-root bindings))))
(map (lambda (h root pattern)
(cons pattern (update-host-root (cdr h) (ubp (build-path root)))))
(configuration-table-virtual-hosts old)
(extract-bindings 'host-roots bindings)
(extract-bindings 'host-regexps bindings)))))
; update-host-root : host-table str -> host-table
(define (update-host-root host new-root)
(host-table<-paths host (paths<-host-base (host-table-paths host) new-root)))
; host-table<-paths : host-table paths -> host-table
; more here - create these silly functions automatically from def-struct macro
(define (host-table<-paths host paths)
@ -387,7 +382,7 @@
(host-table-messages host)
(host-table-timeouts host)
paths))
; paths<-host-base : paths str -> paths
; more here - create these silly functions automatically from def-struct macro
(define (paths<-host-base paths host-base)
@ -397,18 +392,18 @@
(paths-htdocs paths)
(paths-servlet paths)
(paths-passwords paths)))
; string->num : str -> nat
(define (string->num str)
(or (string->number str) (error 'string->nat "~s is not a number" str)))
; string->nat : str -> nat
(define (string->nat str)
(let ([n (string->number str)])
(if (and n (integer? n) (exact? n) (>= n 0))
n
(error 'string->nat "~s is not exactly a natural number" str))))
; request-new-host-table : host-table -> str -> response
(define (request-new-host-table old)
(let* ([timeouts (host-table-timeouts old)]
@ -459,7 +454,7 @@
(hr)
(input ([type "submit"] [value "Save Configuration"]))
,footer))))
; update-host-table : host-table (listof (cons sym str)) -> host-table
(define (update-host-table old bindings)
(let* ([eb (lambda (tag) (build-path (extract-binding/single tag bindings)))]
@ -484,7 +479,7 @@
(paths-conf old-paths)
((un-build-path web-base) (build-path (paths-host-base old-paths)))
(map eb-host-root '(path-log path-htdocs path-servlet path-password)))))))
; un-build-path : path -> path -> string
; (GregP) Theory: this should return a string not a path so that the result can be
; written to the configuration file.
@ -497,7 +492,7 @@
=> (lambda (x) (path->string (apply build-path x)))]
[else
(path->string path)])))))
; suffix : (listof a) (listof a) -> (U #f (listof a))
; to return the extra elements in b after removing all elements from a in order
(define (suffix a b)
@ -507,9 +502,9 @@
[(null? b) #f]
[else (and (equal? (car a) (car b))
(suffix (cdr a) (cdr b)))])]))
; Password Configuration
; configure-passwords : path -> void
(define (configure-passwords password-path)
(edit-passwords
@ -517,7 +512,7 @@
(if (file-exists? password-path)
(call-with-input-file password-path read-passwords)
null)))
; edit-passwords : path passwords -> passwords
(define (edit-passwords which-one passwords)
(let* ([bindings (interact (password-updates which-one passwords))]
@ -541,7 +536,7 @@
(again (cons (make-realm "new realm" "" null)
(drop passwords to-deactivate)))]
[else (drop passwords to-deactivate)])))
; password-updates : path passwords -> request
(define (password-updates which-one passwords)
(let ([which-one (path->string which-one)])
@ -563,7 +558,7 @@
,(make-field "submit" 'add "Add Realm")
,(make-field "submit" 'edit-button "Edit")
,footer))))
; edit-realm : realm -> realm
(define (edit-realm realm)
(let* ([bindings (interact (realm-updates realm))]
@ -582,7 +577,7 @@
[(assq 'update bindings)
(make-realm new-name new-pattern new-allowed)]
[else (error 'edit-realm "Didn't find either 'add-user or 'update in ~s" bindings)])))
; realm-updates : realm -> request
(define (realm-updates realm)
(build-suspender
@ -603,7 +598,7 @@
(input ([type "submit"] [name "add-user"] [value "Add User"]))
(input ([type "submit"] [name "update"] [value "Update Realm"]))
,footer)))
; read-passwords : iport -> passwords
; only works if the file starts with (quote ...)
(define (read-passwords in)
@ -618,7 +613,7 @@
(map (lambda (x) (make-user-pass (car x) (cadr x)))
(cddr raw-realm))))
(cadr raw))))
; format-passwords : passwords -> s-expr
(define (format-passwords passwords)
(list 'quote
@ -629,9 +624,9 @@
(list (user-pass-user x) (user-pass-pass x)))
(realm-allowed r))))
passwords)))
; Little Helpers
; initialization-error-page : response
(define initialization-error-page
`(html (head (title "Web Server Configuration Program Invocation Error"))
@ -640,7 +635,7 @@
(a ([href ,(url->string (request-uri initial-request))]) "configuration program,")
" not through another URL.")
,footer)))
; done-page : html
(define done-page
; more-here - consider adding more useful information
@ -649,7 +644,7 @@
(h2 "Configuration Saved.")
(p "Click your browser's back button to continue configuring the server.")
,footer)))
; exception-error-page : TST -> html
(define (exception-error-page exn)
`(html (head (title "Error"))
@ -657,41 +652,32 @@
(p "Servlet exception: "
(pre ,(exn->string exn)))
,footer)))
(define must-select-host-page
`(html (head (title "Web Server Configuration Error"))
(body ([bgcolor "white"])
(p "Please select which host to edit before clicking the Edit button.")
,footer)))
; io
; read-configuration : path -> configuration-table
(define (read-configuration configuration-path)
(parse-configuration-table (call-with-input-file configuration-path read)))
; write-configuration : configuration-table path -> void
; writes out the new configuration file and
; also copies the configure.ss servlet to the default-host's servlet directory
(define (write-configuration new configuration-path)
(ensure-configuration-servlet configuration-path (configuration-table-default-host new))
(ensure-configuration-paths new)
(write-to-file
configuration-path
`((port ,(configuration-table-port new))
(max-waiting ,(configuration-table-max-waiting new))
(initial-connection-timeout ,(configuration-table-initial-connection-timeout new))
(default-host-table
,(format-host (configuration-table-default-host new)))
(virtual-host-table
. ,(map (lambda (h) (list (car h) (format-host (cdr h))))
(configuration-table-virtual-hosts new))))))
(write-configuration-table new configuration-path))
; ensure-configuration-servlet : path host-table -> void
(define (ensure-configuration-servlet configuration-path host)
(let* ([paths (host-table-paths host)]
[root (build-path-unless-absolute web-base
(paths-host-base paths))]
(paths-host-base paths))]
[servlets-path
(build-path (build-path-unless-absolute root (paths-servlet paths)) "servlets")])
(ensure-config-servlet configuration-path servlets-path)
@ -699,14 +685,14 @@
(ensure* (collection-path "web-server" "default-web-root" "htdocs")
(build-path-unless-absolute root (paths-htdocs paths))
defaults))))
; ensure-configuration-paths : configuration-table -> void
; to ensure that all the referenced config files exist for an entire configuration
(define (ensure-configuration-paths configuration)
(ensure-host-configuration (configuration-table-default-host configuration))
(for-each (lambda (x) (ensure-host-configuration (cdr x)))
(configuration-table-virtual-hosts configuration)))
; ensure-host-configuration : host-table -> void
; to ensure that all the referenced config files exist for a virtual host
(define (ensure-host-configuration host)
@ -735,7 +721,7 @@
(copy-conf "not-found.html" (messages-file-not-found messages))
(copy-conf "servlet-error.html" (messages-servlet messages))
(copy-conf "collect-garbage.html" (messages-collect-garbage messages)))))
; ensure-file : path path path -> void
; to copy (build-path from name) to (build-path to name), creating directories as
; needed if the latter does not already exist.
@ -745,14 +731,14 @@
(let ([to-path (build-path to name)])
(unless (file-exists? to-path)
(copy-file (build-path from name) to-path)))))
; copy-file* : str str -> void
(define (copy-file* from-path to-path)
(unless (file-exists? to-path)
(let-values ([(to-path-base to-path-name must-be-dir?) (split-path to-path)])
(ensure-directory-shallow to-path-base))
(copy-file from-path to-path)))
; ensure* : path path path -> void
;; GregP: Don't know what the heck this does (thanks Paul)
;; but the first two arguments are now paths.
@ -768,13 +754,13 @@
(directory-list p))))]
[(file-exists? p)
(ensure-file from to name)])))
; ensure-directory-shallow : path -> void
(define (ensure-directory-shallow to)
(unless (directory-exists? to)
; race condition - someone else could make the directory
(make-directory* to)))
; ensure-config-servlet : str path -> void
; to create, if necessary, a stub configuration servlet that includes the main configuration servlet
; at the desired location in a new web tree
@ -792,39 +778,7 @@
(pretty-print
`(servlet-maker ,(path->string configuration-path))
out))))))
; format-host : host-table
(define (format-host host)
(let ([t (host-table-timeouts host)]
[p (host-table-paths host)]
[m (host-table-messages host)])
`(host-table
; more here - configure
(default-indices "index.html" "index.htm")
; more here - configure
(log-format parenthesized-default)
(messages
(servlet-message ,(messages-servlet m))
(authentication-message ,(messages-authentication m))
(servlets-refreshed ,(messages-servlets-refreshed m))
(passwords-refreshed ,(messages-passwords-refreshed m))
(file-not-found-message ,(messages-file-not-found m))
(protocol-message ,(messages-protocol m))
(collect-garbage ,(messages-collect-garbage m)))
(timeouts
(default-servlet-timeout ,(timeouts-default-servlet t))
(password-connection-timeout ,(timeouts-password t))
(servlet-connection-timeout ,(timeouts-servlet-connection t))
(file-per-byte-connection-timeout ,(timeouts-file-per-byte t))
(file-base-connection-timeout ,(timeouts-file-base t)))
(paths
(configuration-root ,(paths-conf p))
(host-root ,(paths-host-base p))
(log-file-path ,(paths-log p))
(file-root ,(paths-htdocs p))
(servlet-root ,(paths-servlet p))
(password-authentication ,(paths-passwords p))))))
; extract-definition : sym (listof s-expr) -> s-expr
; to return the rhs from (def name rhs) not (def (name . args) body)
(define (extract-definition name defs)
@ -835,12 +789,12 @@
(caddr def)))
defs)
(error 'extract-definition "definition for ~a not found" name)))
; passwords = str (i.e. path to a file)
(define build-path-maybe-expression->file-name caddr)
; main
(choose-configuration-file)))
(define servlet (servlet-maker default-configuration-table-path)))

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@ -1,7 +1,7 @@
(module info (lib "infotab.ss" "setup")
(define name "Web Server")
(define mzscheme-launcher-libraries (list "text-launch.ss" "monitor-launch.ss"))
(define mzscheme-launcher-names (list "web-server-text" "web-server-monitor"))
(define mzscheme-launcher-libraries (list "text-launch.ss" "monitor-launch.ss" "setup-launch.ss" ))
(define mzscheme-launcher-names (list "web-server-text" "web-server-monitor" "web-server-setup"))
(define mred-launcher-libraries (list "gui-launch.ss"))
(define mred-launcher-names (list "web-server")))

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@ -26,7 +26,7 @@
[("-p" "--port")
,(lambda (flag port)
(let ([p (string->number port)])
(if (and (number? p) (integer? p) (exact? p) (<= 1 p 65535))
(if (valid-port? p)
(cons 'port p)
(error 'web-server "port expects an argument of type <exact integer in [1, 65535]>; given ~s" port))))
("Use an alternate network port." "port")]

View File

@ -0,0 +1,41 @@
(module setup-launch mzscheme
(require (lib "cmdline.ss")
(lib "file.ss")
(lib "struct.ss"))
(require "configuration.ss"
"configuration-table-structs.ss"
"util.ss"
"configuration-util.ss")
(parse-command-line
"web-server-setup"
(current-command-line-arguments)
`((once-each
[("-p" "--port")
,(lambda (flag port)
(let ([p (string->number port)])
(if (valid-port? p)
(cons 'port p)
(error 'web-server-setup "port expects an argument of type <exact integer in [1, 65535]>; given ~s" port))))
("Use an alternate network port." "port")]
[("-d" "--destination")
,(lambda (flag destination)
(let ([p (normalize-path (string->path destination))])
(cons 'destination p)))
("Use an destination directory other than the current directory" "directory")]))
(lambda (flags)
(let ([port (extract-flag 'port flags 8080)]
[dest (extract-flag 'destination flags (current-directory))])
;; Create dest
(make-directory* dest)
;; Copy default-web-root into dest/default-web-root
(copy-directory/files (build-path (collection-path "web-server") "default-web-root")
(build-path dest "default-web-root"))
;; Read default configuration-table, changing the port
;; Write configuration-table into dest/configuration-table
(write-configuration-table
(copy-struct configuration-table
(get-configuration default-configuration-table-path)
[configuration-table-port port])
(build-path dest "configuration-table"))))
'()))

View File

@ -14,6 +14,7 @@
url-path->string)
(provide/contract
[valid-port? (any/c . -> . boolean?)]
[decompose-request ((request?) . ->* . (url? symbol? string?))]
[network-error ((symbol? string?) (listof any/c) . ->* . (void))]
[path->list (path? . -> . (cons/c (union path? (symbols 'up 'same))
@ -24,6 +25,10 @@
[exn->string ((union exn? any/c) . -> . string?)]
[build-path-unless-absolute (path? (union string? path?) . -> . path?)])
;; valid-port? : any/c -> boolean?
(define (valid-port? p)
(and (number? p) (integer? p) (exact? p) (<= 1 p 65535)))
;; ripped this off from url-unit.ss
(define (url-path->string strs)
(apply