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93 lines
2.3 KiB
Forth
93 lines
2.3 KiB
Forth
\ 1991
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include unix/socket.fs
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\ User-defined routing
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wordlist constant routes
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: find-route ( addr u -- data )
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routes search-wordlist if
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>body @
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else 0 then ;
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: register-route ( data addr u -- )
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2dup routes search-wordlist if
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routes drop nip nip
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>body !
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else
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routes get-current >r set-current \ switch definition word lists
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nextname create ,
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r> set-current
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then ;
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\ Public directory
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: pubvar create 0 , 0 , ;
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pubvar public
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: set-public-path ( addr u -- )
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public 2! ;
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: get-public-path ( -- addr u )
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public 2@ ;
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\ Internal request handling
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: read-request ( socket -- addr u ) pad 4096 read-socket ;
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: send-response ( addr u socket -- )
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dup >r write-socket r> close-socket ;
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: requested-route ( addr u -- routeaddr routeu )
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bl scan 1- swap 1+ swap 2dup bl scan swap drop - ;
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: file-exists? ( addr u -- addr u bool )
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2dup file-status nip 0= ;
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: serve-file ( addr u -- addr u )
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slurp-file ;
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: either-resolve ( addr u -- resolveaddr resolveu )
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s" GET" search if
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requested-route
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2dup find-route dup if
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>r 2drop r> \ keep xt, drop the route string
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execute \ execute the user's route handler
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else
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drop \ drop the xt
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get-public-path 2swap s+ \ see if route exists in public dir
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file-exists? if
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serve-file \ collect file contents
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else
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exit \ continue to 404
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then
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then
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s\" HTTP/1.1 200 OK\n Content-Type: text/html\n\n" 2swap s+
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rdrop exit then ;
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: or-404 ( addr u -- 404addr 404u )
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2drop
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s\" HTTP/1.1 404 Not Found\n Content-Type: text/plain\n\n 404" ;
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: prepare-response ( addr u -- returnaddr returnu)
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either-resolve or-404 ;
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: start-server { server client }
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begin
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server 255 listen
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server accept-socket to client
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client read-request prepare-response client send-response
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again ;
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\ Userland
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: 1991: ( port -- )
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create-server 0 start-server ;
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: /1991 ( "<path> <word>" -- )
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bl word ' swap count register-route ;
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\ App demo:
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: handle-/ s" fff" ;
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: handle-hi s" hi!" ;
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/1991 / handle-/
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/1991 /hi handle-hi
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8080 1991:
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