apcgi

Web client for aps on trusted networks
git clone git://jacobedwards.org/apcgi
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ap.cgi (1876B)

      1 #!/bin/sh
      2 # Copyright 2023 Jacob R. Edwards <jacob@jacobedwards.org>
      3 # The ap cgi script
      4 #
      5 # WARNING: The player command is dangerous, this script should be
      6 # protected from malicious entities.
      7 #
      8 # Depends on /bin/sh(1), sed(1), echo(1) (unless built-in to sh(1)),
      9 # and apc(1). If dynamically linked, you should only need libc.
     10 # It also depends on urlencode and urldecode, but that's included
     11 # in the project.
     12 #
     13 # If chrooted, you will need the programs and library listed above
     14 # and the server socket must be accessable with the new root, such
     15 # as at $CHROOT/tmp/aps
     16 
     17 nam='Web Audio Player Client'
     18 css=../ap.css
     19 man=/man/aps.1.html
     20 
     21 encode() {
     22 	echo -n "$1" | urlencode
     23 }
     24 
     25 # name, command
     26 button() {
     27 	echo '<a href="'"?command=$(encode "$2")"'"><button>'"$1"'</button></a>'
     28 }
     29 
     30 # name, value, extra attributes
     31 input() {
     32 	# put autofocus attribute in input to auto focus
     33 	# placeholder="'"${3:-list /jimi}"'">
     34 	echo '<form action="'"$DOCUMENT_URI"'">
     35 <label for="command">'"$1"'</label>
     36 <br>
     37 <input type="search" name="command" value="'"$2"'" '${3:+"$3"}'>
     38 <input type="submit" value="Execute">
     39 </form>'
     40 }
     41 
     42 echo -n 'Content-Type: text/html
     43 
     44 '
     45 
     46 exec 2>&1
     47 
     48 command="$(echo ${QUERY_STRING#command=} | sed 'y/+/ /' | urldecode)"
     49 
     50 echo '<!DOCTYPE HTML><head>
     51 	<title>'"$nam"'</title>
     52 	<link rel="stylesheet" type="text/css" href="'"$css"'">
     53 </head>'
     54 
     55 echo '<body><h1>'"$nam"'</h1>
     56 <p>See the <a href="'"$man"'">manual</a> for available commands.</p>'
     57 
     58 input Command '' autofocus
     59 input 'Last Command' "$command" 'placeholder="'"$command"'"'
     60 
     61 button Prev previous
     62 button Toggle toggle
     63 button Next next
     64 
     65 echo '<br>'
     66 button Status status
     67 button Player player
     68 button Playing name
     69 
     70 echo '<br>'
     71 button Next 'list 1'
     72 button 'Next Ten' 'list ,10'
     73 button 'List' list
     74 
     75 echo -n '<hr><pre>'
     76 
     77 echo "$command" | apc |
     78     sed "s!.*!<a href='?command=play+\"&'>&</a>!"
     79 
     80 echo '</pre></body>'