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
  34         # Remove trailing ^M's that come with CGI
  35 }
  36
  37 # Print out a generic header
  38 function header {
  39         echo "Content-Type: $1; charset=UTF-8"
  40         echo
  41 }
  42
  43 # Format a file for viewing
  44 function do_print {
  45         if [ -f "$1" ]; then
  46                 input="$1"
  47         elif [ -f "db/$1" ]; then
  48                 input="db/$1"
  49                 trim='1d' # sed command to remove cruft
  50         else
  51                 echo "Status: 404 Not Found"
  52                 header text/plain
  53                 echo "File '$1' not found"
  54                 return
  55         fi
  56
  57
  58         if [[ "$REQUEST_URI" == *'?'* ]]; then
  59                 # Create a temp file with the provided modeline
  60                 output="$(mktemp)"
  61                 tmp="$(mktemp)"
  62                 sed "1a$(get_modeline)" "$input" > "$tmp"
  63
  64                 # - I have some plugins in ~/.vim
  65                 # - Run ex in screen to trick it into thinking that it
  66                 #   has a real terminal, not that we also have to set
  67                 #   term=xterm-256color in vimrc
  68                 HOME=/home/andy \
  69                 screen -D -m ex -u vimrc \
  70                         '+2d|'$trim     \
  71                         '+%s/\r//g'     \
  72                         '+TOhtml'       \
  73                         "+sav! $output" \
  74                         '+qall!'        \
  75                         "$tmp"
  76
  77                 header text/html
  78                 cat "$output"
  79                 rm "$tmp" "$output"
  80         else
  81                 header text/plain
  82                 sed "$trim" "$input"
  83         fi
  84 }
  85
  86
  87 # Upload handler
  88 function do_upload {
  89         output="$(mktemp db/XXXXX)"
  90         uri="$url$(basename "$output")${QUERY_STRING:+"?"}"
  91         (get_modeline; cut_file "$1") > "$output"
  92         echo "Status: 302 Found"
  93         echo "Location: $uri"
  94         header text/plain
  95         echo "$uri"
  96 }
  97
  98 # Default index page
  99 function do_help {
 100 filetypes=$(
 101         ls /usr/share/vim/vim{72,files}/syntax/ /home/andy/.vim/after/syntax/ |
 102         sed -n 's/.vim$//p' | sort | uniq
 103 )
 104 uploads=$(ls -t db | head -n 5 | sed "s!^!$url!")
 105
 106 header text/html
 107 cat - <<EOF
 108 <html>
 109         <head>
 110                 <style>
 111                 * { margin:0; padding:0; }
 112                 body { margin:1em; }
 113                 h4 { margin:1em 0 0 0; }
 114                 p,ul,dl,dd,pre,blockquote { margin:0 0 0 2em; }
 115                 dt { font-weight:bold; padding:0.5em 0 0 0; }
 116                 blockquote { width:50em; font-size:small; }
 117                 </style>
 118         </head>
 119         <body>
 120                 <form id="form" method="post" action="?" enctype="multipart/form-data">
 121                 <textarea name="text" style="width:100%; height:20em;"></textarea>
 122                 <br>
 123                 <select onchange="document.getElementById('form').action =
 124                         document.location + '?ft=' + this.value;">
 125                 <option value="" selected="selected" disabled="disabled">Filetype</option>
 126                 <option value="">None</option>
 127                 $(for ft in $filetypes; do
 128                         echo "<option>$ft</option>"
 129                 done)
 130                 </select>
 131                 <input type="submit" value="Paste">
 132                 </form>
 133                 <br>
 134
 135                 <h4>NAME</h4>
 136                 <p>vpaste: Vim enabled pastebin</p>
 137
 138                 <h4>SYNOPSIS</h4>
 139                 <pre> vpaste file [option=value,..]</pre>
 140                 <pre> &lt;command&gt; | vpaste [option=value,..]</pre>
 141                 <br>
 142                 <pre> &lt;command&gt; | curl -F 'x=<-' $url[?option=value,..]</pre>
 143                 <br>
 144                 <pre>:map vp :exec "w !vpaste ft=".&ft&lt;CR&gt;</pre>
 145                 <pre>:vmap vp &lt;ESC&gt;:exec "'&lt;,'&gt;w !vpaste ft=".&ft&lt;CR&gt;</pre>
 146
 147                 <h4>DESCRIPTION</h4>
 148                 <p>Add <b>?[option[=value],..]</b> to make your text a rainbow.</p>
 149                 <p>Options specified when uploading are used as defaults.</p>
 150
 151                 <h4>OPTIONS</h4>
 152                 <dl>
 153                 <dt>ft, filetype={filetype}</dt>
 154                 <dd>A filetype to use for highlighting, see above menu for supported types</dd>
 155                 <dt>bg, background={light|dark}</dt>
 156                 <dd>Background color to use for the page</dd>
 157                 <dt>et, expandtab</dt>
 158                 <dd>Expand tabs to spaces</dd>
 159                 <dt>ts, tabstop=[N]</dt>
 160                 <dd>Number of spaces to use for tabs when <b>et</b> is set</dd>
 161                 <dt>...</dt>
 162                 <dd>See :help modeline for more information</dd>
 163                 </dl>
 164
 165                 <h4>SOURCE</h4>
 166                 <ul>
 167                 <li><a href="vpaste?ft=sh">vpaste</a>
 168                 <li><a href="index.cgi?ft=sh">index.cgi</a>
 169                     <a href="vimrc?ft=vim">vimrc</a>
 170                     <a href="htaccess?ft=apache">htaccess</a>
 171                 <li><a href="2html-et.patch?ft=diff">2html-et.patch</a>
 172                 </ul>
 173
 174                 <h4>LATEST UPLOADS</h4>
 175                 <ul>$(for uri in ${uploads[@]}; do
 176                         echo "<li><a href='$uri'>$uri</a>"
 177                 done)</ul>
 178         </body>
 179 </html>
 180 EOF
 181 }
 182
 183 # Main
 184 url="http://$HTTP_HOST/$SCRIPT_URI"
 185 pathinfo="${REQUEST_URI/*\/}"
 186 pathinfo="${pathinfo/\?*}"
 187
 188 if [ "$pathinfo" ]; then
 189         do_print "$pathinfo"
 190 elif [ "$CONTENT_TYPE" ]; then
 191         do_upload ${CONTENT_TYPE/*boundary\=/}
 192 else
 193         do_help
 194 fi