#! /bin/ash #Set your hostname after this variable readonly PATH=/usr/lib/restricted/bin readonly fqdn=gopher.zcrayfish.soy oldfqdn=zcrayfish.dyndns.org error301 () { printf '%s\15\12' "HTTP/1.0 301 Moved Permanently" \ "Location: https://$fqdn$REQUEST_URI" \ "Content-Type: text/plain" \ "Server: gopher to http gateway at $fqdn" \ "" \ "HTTP/1.0 301 Moved permanently" \ "http://$oldfqdn$REQUEST_URI" \ "Might be found at:" \ "https://$fqdn$REQUEST_URI" \ "" \ "gopher to http gateway at $fqdn" } # Gather request and sanitise, not sure if needed now that we're running under lighttpd filename="$(printf "%s" "$REQUEST_URI" | sed -e 's/%2c/,/gI' -e 's/%20/ /g')" #old FQDN? Redirect them! zdo=$(echo "$HTTP_HOST" | grep -i zcrayfish.dyndns.org) test ! -z "$zdo" && error301 && exit #Step4 case "$filename" in /7*httpsearch*) printf '%s\15\12' 'HTTP/1.0 200 OK' \ 'Content-Type: text/html' \ "Server: gopher to http gateway at $fqdn" \ '' \ '' searchytwothousand="$(printf $filename | sed 's/httpsearch=//g')" lynx -anonymous -dump -source "gopher://$fqdn:70$searchytwothousand" | \ tidyp -in -w 0 -cn --doctype omit --show-errors 0 --show-warnings 0 --quiet 1 --uppercase-tags 1 --uppercase-attributes 1 --char-encoding utf8 | \ sed -e 's//a \n' ;; /7*) printf '%s\15\12' "HTTP/1.0 200 OK" \ "Content-Type: text/html" \ "Server: gopher to http gateway at $fqdn" \ "" \ '' \ '' \ '' \ '

This is a searchable gopher index. Enter search keywords below
' \ "


" \ '' # "
" \ # '

This is a searchable gopher index. Enter search keywords below

' \ ;; # /debug*) # printf '%s\15\12' "HTTP/1.0 200 OK" \ # "Content-Type: text/plain" \ # "" # set # ;; ###START OF DUMB / NON-INTELLIGENT GOPHER TYPES### /[04569IMPdghps]*) case "$filename" in /0*) mimetype="Content-Type: text/plain" ;; /4*) mimetype="Content-Type: application/mac-binhex40" ;; /5*) mimetype="Content-Type: application/octet-stream" ;; /6*) mimetype="Content-Type: message/rfc822" ;; /9*) mimetype="Content-Type: application/octet-stream" ;; /I*.webp) mimetype="Content-Type: image/webp" ;; /I*) mimetype="Content-Type: image/jpeg" ;; /M*) mimetype="Content-Type: message/rfc822" ;; /P*) mimetype="Content-Type: application/pdf" ;; /d*) mimetype="Content-Type: application/octet-stream" ;; /g*) mimetype="Content-Type: image/gif" ;; /h*) mimetype="Content-Type: text/html" ;; /p*) mimetype="Content-Type: image/png" ;; /s*) mimetype="Content-Type: application/octet-stream" ;; esac xyzzy="$(curl -q --disable -s --output - "gopher://$fqdn:70$filename" | base64)" isdumb="true" ;; ###END OF DUMB / NON-INTELLIGENT GOPHER TYPES### *) #Store lynx output for future processing xyzzy="$(lynx -anonymous -dump -source "gopher://$fqdn:70$filename" | \ tidyp -in -w 0 --doctype omit --show-errors 0 --show-warnings 0 --quiet 1 --uppercase-tags 1 --uppercase-attributes 1 --char-encoding utf8 | \ sed -e 's/\(.*\)<\/PRE>.*/\1/p') precontent=$(echo "$xyzzy" | xargs -s 633 | grep -E -o "
.*?
") fi #See if there's an error is403=$(echo "$precontent" | head -n1 | grep "Error: Access denied!") is404=$(echo "$precontent" | head -n1 | grep "Error: File or directory not found!") #Respond to any errors if [ -n "$is403" ] ; then printf '%s\15\12' 'HTTP/1.0 403 Forbidden' && iserror="true" fi if [ -n "$is404" ] ; then printf '%s\15\12' 'HTTP/1.0 404 Not Found' && iserror="true" fi if [ -n "$iserror" ] ; then if [ "$isdumb" = "true" ] ; then printf '%s\15\12' "Content-Type: text/plain" \ '%s\15\12' "Server: gopher to http gateway at $fqdn" \ '' \ "$precontent" else printf '%s\15\12' "Content-Type: text/html" \ '%s\15\12' "Server: gopher to http gateway at $fqdn" \ '' \ '' \ "$xyzzy" fi exit fi #If no errors, then we go here printf '%s\15\12' 'HTTP/1.0 200 OK' \ "$mimetype" \ "Server: gopher to http gateway at $fqdn" \ '' if [ "$mimetype" = "Content-Type: text/html" ]; then echo '' fi if [ "$isdumb" = "true" ] ; then echo "$xyzzy" | base64 -d else echo "$xyzzy" fi echo ""