examples/scripts/websrv.sh

   1 #!/bin/sh
   2 #for instructions or updates go to:
   3 #<A HREF="http://math.ucr.edu:8889/">This script's home page</A>
   4 #email me questions or comments at:
   5 #<A HREF="mailto:insom@math.ucr.edu">insom@math.ucr.edu</A>
   6 #copyright chris ulrich; This software may be used or modified
   7 #in any way so long as this notice remains intact.
   8 #
   9 # WWW server in sh
  10 # Author: Chris Ulrich <chris@tinker.ucr.edu>
  11 #
  12
  13 INDEX=index.html
  14 date=`date`
  15 DOCHOME=/home/insom/web-docs
  16 BINHOME=/home/insom/web-bin
  17 LOGHOME=/home/insom/web-logs
  18 LOGFILE=$LOGHOME/access_log
  19 #verbose=:
  20 verbose=echo
  21 exec 2>> $LOGHOME/error_log
  22
  23 hheader() {
  24 echo "HTTP/1.0 200 OK
  25 Server: WebSH/2.00
  26 Connection: close
  27 Date: $date"
  28 }
  29
  30 header() {
  31 echo "Content-type: $1
  32 "
  33 }
  34
  35 no_url() {
  36   header "text/plain"
  37   echo "No such url $1"
  38 }
  39
  40 send() {
  41   #case "$#" in 2) ;; *) echo eep! | mailx insom@math.ucr.edu  ; exit 3 ;; esac
  42   if test -f "$DOCHOME/$2"
  43   then
  44     header "$1"
  45     cat "$DOCHOME/$2"
  46   else
  47     no_url "$2"
  48   fi
  49 }
  50
  51 LsToHTML() {
  52   if test -f "$DOCHOME/$url/.title"
  53   then
  54     header "text/html; charset=US-ASCII"
  55     echo "<pre>"
  56     cat "$DOCHOME/$url/.title"
  57     echo "</pre>"
  58   elif test -f "$DOCHOME/$url/.title.html"
  59   then
  60     header "text/html; charset=US-ASCII"
  61     cat "$DOCHOME/$url/.title.html"
  62   else
  63     header "text/html; charset=US-ASCII"
  64   fi
  65
  66   case "$url" in
  67      /) ;;
  68      *) url="$url/"
  69   esac
  70
  71   while read link
  72   do
  73    case $link in
  74      *.cgi) ;;
  75      *)
  76         echo "<A HREF=\"$url$link\">$link</A> <BR>"
  77      ;;
  78    esac
  79   done
  80 }
  81
  82 read method data
  83
  84 $verbose "
  85 $date access from ${TCPREMOTEINFO:=NO-IDENT}@${TCPREMOTEHOST:=$TCPREMOTEIP}
  86         on local machine $TCPLOCALHOST
  87          $method $data " >> $LOGFILE
  88
  89 for hopeurl in $data
  90 do
  91   url="${url}${url:+ }$second"
  92   second="$hopeurl"
  93 done
  94
  95 case "$second" in
  96   *[1-9].*)
  97      read inheader
  98      while
  99         case "$inheader" in
 100           ?|'') false
 101            ;;
 102           *)
 103             read inheader
 104            ;;
 105         esac
 106      do
 107        :
 108      done
 109      hheader
 110   ;;
 111 esac
 112
 113 case "$url" in
 114   *..*)
 115     no_url "$url"
 116     exit 1
 117    ;;
 118   *.txt|*.[ch])
 119     send "text/plain; charset=US-ASCII" "$url"
 120     ;;
 121   *.html)
 122     send "text/html; charset=US-ASCII" "$url"
 123    ;;
 124   *.cgi)
 125     if test -x "$DOCHOME/$url"
 126     then
 127       read message
 128       echo "$message" | "$DOCHOME/$url"
 129     else
 130       no_url "$url"
 131     fi
 132    ;;
 133   *".cgi?"*)
 134     oIFS="$IFS"
 135     echo "$url"  | {
 136       IFS='?' read url QUERY_STRING
 137       if test -x "$DOCHOME/$url"
 138       then
 139         IFS="$oIFS"
 140         export QUERY_STRING
 141         "$DOCHOME/$url"
 142       else
 143         no_url "$url"
 144       fi
 145        }
 146    ;;
 147   *.[Gg][Ii][Ff])
 148     send "image/gif" "$url"
 149    ;;
 150   *.[Jj][Pp][Gg]|*.[Jj][Pp][Ee][Gg])
 151     send "image/jpeg" "$url"
 152    ;;
 153   *.tbl)
 154     header "text/html; charset=US-ASCII"
 155     echo "<pre>"
 156     test -f "$DOCHOME/$url" &&
 157       tbl < "$DOCHOME/$url"  | nroff ||
 158       no_url "$url"
 159     echo "</pre>"
 160    ;;
 161   *.nroff)
 162     header "text/html; charset=US-ASCII"
 163     echo "<pre>"
 164     test -f "$DOCHOME/$url" &&
 165       nroff < "$DOCHOME/$url" ||
 166       no_url "$url"
 167     echo "</pre>"
 168    ;;
 169   *mp[23])
 170     if test -f "$DOCHOME/$url"
 171     then
 172       header "application/mpstream"
 173       echo "+$TCPLOCALIP:${MPSERVPORT:=9001}/$url"
 174     else
 175       no_url "$url"
 176     fi
 177    ;;
 178   *.[0-9]|*.[0-9][a-z])
 179     header "text/html; charset=US-ASCII"
 180     echo "<pre>"
 181     if test -f "$DOCHOME/$url"
 182     then
 183       #nroff -man  "$DOCHOME/$url" | $BINHOME/man2html
 184       echo "perl at the moment is broken, so man2html doesn't work.  Sorry."
 185       echo "</pre>"
 186     else
 187       no_url "$url"
 188     fi
 189    ;;
 190   *.???|*.??)
 191     send "unknown/data" "$url"
 192    ;;
 193   */)
 194     if test -d "$DOCHOME/$url"
 195     then
 196       ls "$DOCHOME/$url" | LsToHTML
 197     fi
 198    ;;
 199   *)
 200    if test -f "$DOCHOME/$url"
 201    then
 202      read filetype < "$DOCHOME/$url"
 203      case "$filetype" in
 204        \#!/*/*|\#!?/*/*)
 205          header "text/plain; charset=US-ASCII"
 206          cat "$DOCHOME/$url"
 207          ;;
 208        '<!*>')
 209          header "text/html; charset=US-ASCII"
 210          cat "$DOCHOME/$url"
 211         ;;
 212        *)
 213          header "text/html; charset=US-ASCII"
 214          echo "<pre>"
 215          cat "$DOCHOME/$url"
 216          echo "</pre>"
 217         ;;
 218      esac
 219    elif test -f "$DOCHOME/$url/$INDEX"
 220    then
 221      header "text/html; charset=US-ASCII"
 222      cat "$DOCHOME/$url/$INDEX"
 223    elif test -d "$DOCHOME/$url"
 224    then
 225      ls "$DOCHOME/$url" | LsToHTML
 226    else
 227      no_url "$url"
 228    fi
 229    ;;
 230 esac