Pileus Git - vpaste/blob - index.cgi

   1 #!/bin/bash
   2
   3 # Copyright (C) 2009 Andy Spencer
   4 #
   5 # This program is free software: you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation, either version 3 of the License, or
   8 # (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14
  15 # Remove url codings form stdin
  16 function get_modeline {
  17         modeline=$(
  18                 echo "$QUERY_STRING" |
  19                 sed -e 's/%\([0-9A-F][0-9A-F]\)/\\\\\x\1/g; s/[,&]/ /g' |
  20                 xargs echo -e
  21         )
  22         echo "vim: $modeline"
  23 }
  24
  25 # Extract an uploaded file from standard input
  26 # $1 is the boundary delimiter for the file
  27 function cut_file {
  28         awk "
  29                 /--$1/ {st=1};
  30                 st==2  {print \$0};
  31                 /$1--/ {st=0};
  32                 /^\\r$/ && st==1 {st=2};
  33         " | head -c -2 | head -c $((128*1024))
  34         # Remove trailing ^M's that come with CGI
  35         # Limit size to 128K
  36 }
  37
  38 # Print out a generic header
  39 function header {
  40         echo "Content-Type: $1; charset=UTF-8"
  41         echo
  42 }
  43
  44 # Format a file for viewing
  45 function do_print {
  46         if [ -f "$1" ]; then
  47                 input="$1"
  48         elif [ -f "db/$1" ]; then
  49                 input="db/$1"
  50                 trim='1d' # sed command to remove cruft
  51         else
  52                 echo "Status: 404 Not Found"
  53                 header text/plain
  54                 echo "File '$1' not found"
  55                 return
  56         fi
  57
  58
  59         if [[ "$REQUEST_URI" == *'?'* ]]; then
  60                 # Create a temp file with the provided modeline
  61                 output="$(mktemp)"
  62                 tmp="$(mktemp)"
  63                 sed "1a$(get_modeline)" "$input" > "$tmp"
  64
  65                 # - I have some plugins in ~/.vim
  66                 # - Run ex in screen to trick it into thinking that it
  67                 #   has a real terminal, not that we also have to set
  68                 #   term=xterm-256color in vimrc
  69                 HOME=/home/andy \
  70                 screen -D -m ex -Z -u vimrc \
  71                         '+2d|'$trim     \
  72                         '+%s/\r//g'     \
  73                         '+TOhtml'       \
  74                         "+sav! $output" \
  75                         '+qall!'        \
  76                         "$tmp"
  77
  78                 header text/html
  79                 cat "$output"
  80                 rm "$tmp" "$output"
  81         else
  82                 header text/plain
  83                 sed "$trim" "$input"
  84         fi
  85 }
  86
  87
  88 # Upload handler
  89 function do_upload {
  90         output="$(mktemp db/XXXXX)"
  91         uri="$url$(basename "$output")${QUERY_STRING:+"?"}"
  92         (get_modeline; cut_file "$1") > "$output"
  93         echo "Status: 302 Found"
  94         echo "Location: $uri"
  95         header text/plain
  96         echo "$uri"
  97 }
  98
  99 # Default index page
 100 function do_help {
 101 filetypes=$(
 102         ls /usr/share/vim/vim{72,files}/syntax/ /home/andy/.vim/after/syntax/ |
 103         sed -n 's/.vim$//p' | sort | uniq
 104 )
 105 uploads=$(ls -t db | head -n 5 | sed "s!^!$url!")
 106
 107 header text/html
 108 cat - <<EOF
 109 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
 110   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 111 <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
 112         <head>
 113                 <title>vpaste.net - Vim based pastebin</title>
 114                 <meta http-equiv="Content-type" content="text/html;charset=UTF-8" />
 115                 <style type="text/css">
 116                         * { margin:0; padding:0; }
 117                         body { margin:1em; }
 118                         h4 { margin:1em 0 0 0; }
 119                         blockquote,dd,dl,p,pre,ul { margin:0 0 0 2em; }
 120                         dt { font-weight:bold; padding:0.5em 0 0 0; }
 121                         blockquote { width:50em; font-size:small; }
 122                 </style>
 123         </head>
 124         <body>
 125                 <form id="form" method="post" action="?" enctype="multipart/form-data">
 126                 <div style="margin:0 0 1.5em 0;">
 127                 <textarea name="text" cols="80" rows="25" style="width:100%; height:20em;"></textarea>
 128                 <select onchange="document.getElementById('form').action =
 129                         document.location + '?ft=' + this.value;">
 130                 <option value="" selected="selected" disabled="disabled">Filetype</option>
 131                 <option value="">None</option>
 132                 $(for ft in $filetypes; do
 133                         echo "<option>$ft</option>"
 134                 done)
 135                 </select>
 136                 <input type="submit" value="Paste" />
 137                 </div>
 138                 </form>
 139
 140                 <h4>NAME</h4>
 141                 <p>vpaste: Vim based pastebin</p>
 142
 143                 <h4>SYNOPSIS</h4>
 144                 <div>
 145                 <pre> vpaste file [option=value,..]</pre>
 146                 <pre> &lt;command&gt; | vpaste [option=value,..]</pre>
 147                 <br />
 148                 <pre> &lt;command&gt; | curl -F 'x=&lt;-' $url[?option=value,..]</pre>
 149                 <br />
 150                 <pre> :map vp :exec "w !vpaste ft=".&amp;ft&lt;CR&gt;</pre>
 151                 <pre> :vmap vp &lt;ESC&gt;:exec "'&lt;,'&gt;w !vpaste ft=".&amp;ft&lt;CR&gt;</pre>
 152                 </div>
 153
 154                 <h4>DESCRIPTION</h4>
 155                 <p>Add <b>?[option[=value],..]</b> to make your text a rainbow.</p>
 156                 <p>Options specified when uploading are used as defaults.</p>
 157
 158                 <h4>OPTIONS</h4>
 159                 <dl>
 160                 <dt>ft, filetype={filetype}</dt>
 161                 <dd>A filetype to use for highlighting, see above menu for supported types</dd>
 162                 <dt>bg, background={light|dark}</dt>
 163                 <dd>Background color to use for the page</dd>
 164                 <dt>et, expandtab</dt>
 165                 <dd>Expand tabs to spaces</dd>
 166                 <dt>ts, tabstop=[N]</dt>
 167                 <dd>Number of spaces to use for tabs when <b>et</b> is set</dd>
 168                 <dt>...</dt>
 169                 <dd>See :help modeline for more information</dd>
 170                 </dl>
 171
 172                 <h4>SOURCE</h4>
 173                 <ul>
 174                 <li><a href="vpaste?ft=sh">vpaste</a></li>
 175                 <li><a href="index.cgi?ft=sh">index.cgi</a>
 176                     <a href="vimrc?ft=vim">vimrc</a>
 177                     <a href="htaccess?ft=apache">htaccess</a></li>
 178                 <li><a href="2html-et.patch?ft=diff">2html-et.patch</a></li>
 179                 <li><a href="https://lug.rose-hulman.edu/svn/misc/trunk/htdocs/vpaste/">Subversion</a></li>
 180                 </ul>
 181
 182                 <h4>LATEST UPLOADS</h4>
 183                 <ul>$(for uri in ${uploads[@]}; do
 184                         echo "<li><a href='$uri'>$uri</a></li>"
 185                 done)</ul>
 186         </body>
 187 </html>
 188 EOF
 189 }
 190
 191 # Main
 192 url="http://$HTTP_HOST/$SCRIPT_URI"
 193 pathinfo="${REQUEST_URI/*\/}"
 194 pathinfo="${pathinfo/\?*}"
 195
 196 if [ "$pathinfo" ]; then
 197         do_print "$pathinfo"
 198 elif [ "$CONTENT_TYPE" ]; then
 199         do_upload ${CONTENT_TYPE/*boundary\=/}
 200 else
 201         do_help
 202 fi