Diff for /gforth/httpd.fs between versions 1.3 and 1.23

version 1.3, 2000/04/02 21:48:54 version 1.23, 2007/12/31 18:40:24
Line 1 Line 1
 #! /usr/local/bin/gforth  #! /usr/local/bin/gforth
   
   \ Copyright (C) 2000,2002,2003,2004,2006 Free Software Foundation, Inc.
   
   \ This file is part of Gforth.
   
   \ Gforth is free software; you can redistribute it and/or
   \ modify it under the terms of the GNU General Public License
   \ as published by the Free Software Foundation, either version 3
   \ of the License, or (at your option) any later version.
   
   \ This program is distributed in the hope that it will be useful,
   \ but WITHOUT ANY WARRANTY; without even the implied warranty of
   \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   \ GNU General Public License for more details.
   
   \ You should have received a copy of the GNU General Public License
   \ along with this program. If not, see http://www.gnu.org/licenses/.
   
   \ This relies on inetd or xinetd:
   
   \ To run the server on port 4444, do the following:
   
   \ Add the following line to /etc/services:
   \ gforth          4444/tcp
   
   \ If you use inetd, add the following line to /etc/inetd.conf:
   \ gforth stream tcp nowait.10000   wwwrun   /usr/users/bernd/bin/httpd
   
   \ If you use xinetd, create the folliwing service in /etc/xinetd.d:
   \ service gforth
   \ {
   \         socket_type     = stream
   \         protocol        = tcp
   \         wait            = no
   \         user            = wwwrun
   \         server          = /home/bernd/bin/httpd
   \ }
   
   \ If you want port 80, replace the service "gforth" with "http"
   
 warnings off  warnings off
   
 include string.fs  require string.fs
   
   Variable DocumentRoot  s" /srv/www/htdocs/" DocumentRoot $!
   Variable UserDir       s" public_html/"     UserDir      $!
   
 Variable url  Variable url
   Variable posted
   Variable url-args
 Variable protocol  Variable protocol
 Variable data  Variable data
   Variable active
 Variable command?  Variable command?
   
 : get ( addr -- )  name rot $! ;  : get ( addr -- )  name rot $! ;
 : get-rest ( addr -- )  source >in @ /string dup >in +! rot $! ;  : get-rest ( addr -- )  source >in @ /string dup >in +! rot $! ;
   
 Table constant values  wordlist constant values
 Table constant commands  wordlist constant commands
   
 : value:  ( -- )  name  : value:  ( -- )  name
   Forth definitions 2dup 1- nextname Variable    Forth definitions 2dup 1- nextname Variable
Line 23  Table constant commands Line 68  Table constant commands
   
 \ HTTP protocol commands                               26mar00py  \ HTTP protocol commands                               26mar00py
   
 : rework-% ( -- )  base @ >r hex  : rework-% ( add -- ) { url }  base @ >r hex
     0 url $@len 0 ?DO      0 url $@len 0 ?DO
         url $@ drop I + c@ dup '% = IF          url $@ drop I + c@ dup '% = IF
             drop 0. url $@ I 1+ /string              drop 0. url $@ I 1+ /string
Line 32  Table constant commands Line 77  Table constant commands
     r> 1+ +LOOP  url $!len      r> 1+ +LOOP  url $!len
     r> base ! ;      r> base ! ;
   
   : rework-? ( addr -- )
       dup >r $@ '? $split url-args $! nip r> $!len ;
   
   : get-url ( -- ) url get protocol get-rest
       url rework-? url rework-% >values ;
   
 commands set-current  commands set-current
   
 : GET   url get rework-% protocol get-rest >values data on  ;  : GET   get-url data on  active off ;
 : HEAD  url get rework-% protocol get-rest >values data off ;  : POST  get-url data on  active on  ;
   : HEAD  get-url data off active off ;
   
 \ HTTP protocol values                                 26mar00py  \ HTTP protocol values                                 26mar00py
   
Line 53  value: X-Forwarded-For: Line 105  value: X-Forwarded-For:
 value: Cache-Control:  value: Cache-Control:
 value: Connection:  value: Connection:
 value: Referer:  value: Referer:
   value: Content-Type:
   value: Content-Length:
   value: Keep-Alive:
   
 definitions  definitions
   
   
 Variable maxnum  Variable maxnum
   
 : ?cr ( -- )  : ?cr ( -- )
   #tib @ 1 >= IF  source 1- + c@ #cr = #tib +!  THEN ;    #tib @ 1 >= IF  source 1- + c@ #cr = #tib +!  THEN ;
 : refill-loop ( -- flag )  : refill-loop ( -- flag ) base @ >r base off
   BEGIN  refill ?cr  WHILE  interpret  >in @ 0=  UNTIL    BEGIN  refill ?cr  WHILE  ['] interpret catch drop  >in @ 0=  UNTIL
   true  ELSE  maxnum off false  THEN ;    true  ELSE  maxnum off false  THEN  r> base ! ;
 : get-input ( -- flag ior )  : get-input ( -- flag ior )
   s" /nosuchfile" url $!  s" HTTP/1.0" protocol $!    s" /nosuchfile" url $!  s" HTTP/1.0" protocol $!
   s" close" connection $!    s" close" connection $!
   infile-id push-file loadfile !  loadline off  blk off    infile-id push-file loadfile !  loadline off  blk off
   commands 1 set-order  command? on  ['] refill-loop catch    commands 1 set-order  command? on  ['] refill-loop catch
   only forth also  pop-file ;    Keep-Alive $@ snumber? dup 0> IF  nip  THEN  IF  maxnum !  THEN
     active @ IF  s" " posted $! Content-Length $@ snumber? drop
 \ Keep-Alive handling                                  26mar00py        posted $!len  posted $@ infile-id read-file throw drop
     THEN  only forth also  pop-file ;
 : .connection ( -- )  
   ." Connection: "  
   connection $@ s" Keep-Alive" compare 0= maxnum @ 0> and  
   IF  connection $@ type cr  
       ." Keep-Alive: timeout=15, max=" maxnum @ 0 .r cr  
       -1 maxnum +!  ELSE  ." close" cr maxnum off  THEN ;  
   
 \ Use Forth as server-side script language             26mar00py  
   
 : $> ( -- )  
     BEGIN  source >in @ /string s" <$" search  0= WHILE  
         type cr refill  0= UNTIL  EXIT  THEN  
     nip source >in @ /string rot - dup 2 + >in +! type ;  
 : <HTML> ( -- )  ." <HTML>" $> ;  
   
 \ Rework HTML directory                                26mar00py  \ Rework HTML directory                                26mar00py
   
 Variable htmldir  Variable htmldir
   
 : rework-htmldir ( addr u -- addr' u' / ior )  : rework-htmldir ( addr u -- addr' u' / ior )
   htmldir $!    htmldir $! htmldir $@ compact-filename htmldir $!len drop
   htmldir $@ 1 min s" ~" compare 0=    htmldir $@ s" ../" string-prefix?
   IF    s" /.html-data" htmldir dup $@ 2dup '/ scan    IF    -1 EXIT  THEN  \ can't access below current directory
     htmldir $@ s" ~" string-prefix?
     IF    UserDir $@ htmldir dup $@ 2dup '/ scan '/ skip
         nip - nip $ins          nip - nip $ins
   ELSE  s" /usr/local/httpd/htdocs/" htmldir 0 $ins  THEN    ELSE  DocumentRoot $@ htmldir 0 $ins  THEN
   htmldir $@ 1- 0 max + c@ '/ = htmldir $@len 0= or    htmldir $@ 1- 0 max + c@ '/ = htmldir $@len 0= or
   IF  s" index.html" htmldir dup $@len $ins  THEN    IF  s" index.html" htmldir dup $@len $ins  THEN
   htmldir $@ file-status nip ?dup ?EXIT    htmldir $@ file-status nip ?dup ?EXIT
Line 113  Variable htmldir Line 155  Variable htmldir
   r@ file-size throw drop    r@ file-size throw drop
   ." Accept-Ranges: bytes" cr    ." Accept-Ranges: bytes" cr
   ." Content-Length: " dup 0 .r cr r> ;    ." Content-Length: " dup 0 .r cr r> ;
 : transparent ( size fd -- ) >r  : transparent ( size fd -- ) { fd }
   dup allocate throw swap      $4000 allocate throw swap dup 0 ?DO
   over swap r@ read-file throw over swap type          2dup over swap $4000 min fd read-file throw type
   free r> close-file throw throw ;          $4000 - $4000 +LOOP  drop
       free fd close-file throw throw ;
   
   \ Keep-Alive handling                                  26mar00py
   
   : .connection ( -- )
     ." Connection: "
     connection $@ s" Keep-Alive" str= maxnum @ 0> and
     IF  connection $@ type cr
         ." Keep-Alive: timeout=15, max=" maxnum @ 0 .r cr
         -1 maxnum +!  ELSE  ." close" cr maxnum off  THEN ;
   
 : transparent: ( addr u -- ) Create  here over 1+ allot place  : transparent: ( addr u -- ) Create  here over 1+ allot place
   DOES>  >r  >file    DOES>  >r  >file
Line 128  Variable htmldir Line 180  Variable htmldir
   
 : mime-read ( addr u -- )  r/o open-file throw  : mime-read ( addr u -- )  r/o open-file throw
     push-file loadfile !  0 loadline ! blk off      push-file loadfile !  0 loadline ! blk off
     BEGIN  refill  WHILE  name      BEGIN  refill  WHILE
         BEGIN  >in @ >r name nip  WHILE          char '# <> >in off name nip 0<> and  IF
             r> >in ! 2dup transparent:  REPEAT              >in off name
         2drop rdrop              BEGIN  >in @ >r name nip  WHILE
                   r> >in ! 2dup transparent:  REPEAT
               2drop rdrop
           THEN
     REPEAT  loadfile @ close-file pop-file throw ;      REPEAT  loadfile @ close-file pop-file throw ;
   
 : lastrequest  : lastrequest
Line 147  mime set-current Line 202  mime set-current
 s" application/pgp-signature" transparent: sig  s" application/pgp-signature" transparent: sig
 s" application/x-bzip2" transparent: bz2  s" application/x-bzip2" transparent: bz2
 s" application/x-gzip" transparent: gz  s" application/x-gzip" transparent: gz
 s" /etc/mime.types" mime-read  s" /etc/mime.types" ' mime-read catch [IF]  2drop
       \ no /etc/mime.types found on this machine,
       \ generating the most important types:
       s" text/html" transparent: html
       s" image/gif" transparent: gif
       s" image/png" transparent: png
       s" image/jpg" transparent: jpg
   [THEN]
   
 definitions  definitions
   
Line 155  s" text/plain" transparent: txt Line 217  s" text/plain" transparent: txt
   
 \ http errors                                          26mar00py  \ http errors                                          26mar00py
   
 : .server ." Server: Gforth httpd/0.1 ("  : .server ( -- )  ." Server: Gforth httpd/1.0 ("
     s" os-class" environment? IF  type  THEN  ." )" cr ;      s" os-class" environment? IF  type  THEN  ." )" cr ;
 : .ok   ." HTTP/1.1 200 OK" cr .server ;  : .ok  ( -- ) ." HTTP/1.1 200 OK" cr .server ;
 : html-error ( n addr u -- )  : html-error ( n addr u -- )
     ." HTTP/1.1 " 2 pick . 2dup type cr .server      ." HTTP/1.1 " 2 pick . 2dup type cr .server
     2 pick &405 = IF ." Allow: GET, HEAD" cr  THEN  lastrequest      2 pick &405 = IF ." Allow: GET, HEAD, POST" cr  THEN
     ." <HTML><HEAD><TITLE>" 2 pick . 2dup type ." </TITLE></HEAD>" cr      lastrequest
       ." <HTML><HEAD><TITLE>" 2 pick . 2dup type
       ." </TITLE></HEAD>" cr
     ." <BODY><H1>" type drop ." </H1>" cr ;      ." <BODY><H1>" type drop ." </H1>" cr ;
 : .trailer ( -- )  : .trailer ( -- )
     ." <HR><ADDRESS>Gforth httpd 0.1</ADDRESS>" cr      ." <HR><ADDRESS>Gforth httpd 1.0</ADDRESS>" cr
     ." </BODY></HTML>" cr ;      ." </BODY></HTML>" cr ;
 : .nok  command? @ IF  &405 s" Method Not Allowed"  : .nok ( -- ) command? @ IF  &405 s" Method Not Allowed"
     ELSE  &400 s" Bad Request"  THEN  html-error      ELSE  &400 s" Bad Request"  THEN  html-error
     ." <P>Your browser sent a request that this server could not understand.</P>" cr      ." <P>Your browser sent a request that this server "
     ." <P>Invalid request in: <CODE>" error-stack cell+ 2@ swap type      ." could not understand.</P>" cr
       ." <P>Invalid request in: <CODE>"
       error-stack cell+ 2@ swap type
     ." </CODE></P>" cr .trailer ;      ." </CODE></P>" cr .trailer ;
 : .nofile  &404 s" Not Found" html-error  : .nofile ( -- ) &404 s" Not Found" html-error
     ." <P>The requested URL <CODE>" url $@ type      ." <P>The requested URL <CODE>" url $@ type
     ." </CODE> was not found on this server</P>" cr .trailer ;      ." </CODE> was not found on this server</P>" cr .trailer ;
   
 \ http server                                          26mar00py  \ http server                                          26mar00py
   
 : http  get-input  IF  .nok  ELSE  Defer redirect?  ( addr u -- addr' u' t / f )
     IF  url $@ 1 /string rework-htmldir  Defer redirect ( addr u -- )
   :noname 2drop false ; IS redirect?
   
   : http ( -- )  get-input  IF  .nok  ELSE
       IF  url $@ 1 /string 2dup redirect? IF  redirect 2drop  ELSE
           rework-htmldir
         dup 0< IF  drop .nofile          dup 0< IF  drop .nofile
         ELSE  .ok  2dup >mime mime search-wordlist          ELSE  .ok  2dup >mime mime search-wordlist
             0= IF  ['] txt  THEN  catch IF  maxnum off THEN              0= IF  ['] txt  THEN  catch IF  maxnum off THEN
         THEN  THEN  THEN  outfile-id flush-file throw ;          THEN  THEN  THEN  THEN  outfile-id flush-file throw ;
   
   : httpd  ( n -- )  dup maxnum ! 0 <# #S #> Keep-Alive $!
     maxnum @ 0 DO  ['] http catch  maxnum @ 0= or  ?LEAVE  LOOP ;
   
   script? [IF]  :noname &100 httpd bye ; is bootmessage  [THEN]
   
   \ Use Forth as server-side script language             26mar00py
   
   : $> ( -- )
       BEGIN  source >in @ /string s" <$" search  0= WHILE
           type cr refill  0= UNTIL  EXIT  THEN
       nip source >in @ /string rot - dup 2 + >in +! type ;
   : <HTML> ( -- )  ." <HTML>" $> ;
   
 : httpd  ( n -- )  maxnum !  \ provide transparent proxying
   BEGIN  ['] http catch  maxnum @ 0= or  UNTIL ;  
   
 script? [IF]  &100 httpd bye  [THEN]  include ./proxy.fs

Removed from v.1.3  
changed lines
  Added in v.1.23


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