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 from 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 -v "bnd=$1" '{
  29                 if ($0 == "--"bnd"\r")     { st=1;     }
  30                 if ($0 == "--"bnd"--\r")   { st=0;     }
  31                 if (st == 2)               { print $0; }
  32                 if ($0 == "\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 # List previous pastes
  45 function do_cmd {
  46 header text/plain
  47 case "$1" in
  48 head)
  49         for i in $(ls -t db/*); do
  50                 basename $i
  51                 basename $i | sed 's/./-/g'
  52                 sed '1,/^$/d; /^\s*$/d' $i | sed -n '1,5s/\(.\{0,60\}\).*/\1/p'
  53                 echo
  54         done
  55         ;;
  56 ls)
  57         ls -t db | column
  58         ;;
  59 esac
  60 }
  61
  62 # Format a file for viewing
  63 function do_print {
  64         if [ -f "./$1" ]; then
  65                 input="$1"
  66         elif [ -f "db/$1" ]; then
  67                 input="db/$1"
  68                 trim='1,/^$/d' # sed command to remove cruft
  69         else
  70                 echo "Status: 404 Not Found"
  71                 header text/plain
  72                 echo "File '$1' not found"
  73                 return
  74         fi
  75
  76
  77         if [[ "$REQUEST_URI" == *'?'* ]]; then
  78                 # Create a temp file with the provided modeline
  79                 output="$(mktemp)"
  80                 tmp="$(mktemp)"
  81                 sed "1a$(get_modeline)" "$input" > "$tmp"
  82
  83                 # - I have some plugins in ~/.vim
  84                 # - Run ex in a pty to trick it into thinking that it
  85                 #   has a real terminal, note that we also have to set
  86                 #   term=xterm-256color in vimrc
  87                 HOME=/home/andy \
  88                 /home/andy/bin/pty ex -nXZ -i NONE -u vimrc \
  89                         '+set bexpr= fde= fdt= fex= inde= inex= key= pa= pexpr' \
  90                         '+set iconstring= ruf= stl= tal=' \
  91                         "+set titlestring=$1\ -\ vpaste.net" \
  92                         '+set noml'     \
  93                         '+2d|'$trim     \
  94                         '+%s/\r//g'     \
  95                         '+TOhtml'       \
  96                         "+sav! $output" \
  97                         '+qall!'        \
  98                         "$tmp" </dev/null >/dev/null 2>&1
  99
 100                 header text/html
 101                 cat "$output"
 102                 rm "$tmp" "$output"
 103         else
 104                 header text/plain
 105                 sed "$trim" "$input"
 106         fi
 107 }
 108
 109
 110 # Upload handler
 111 function do_upload {
 112         text=$(cut_file "$1")
 113         if [ -z "$text" ]; then
 114                 header text/plain
 115                 echo "No text pasted"
 116                 exit
 117         fi
 118         output="$(mktemp db/XXXXX)"
 119         uri="$url$(basename "$output")${QUERY_STRING:+"?"}"
 120
 121         # Format, spam check, and save message
 122         (
 123                 get_modeline
 124                 echo "Date: $(date -R)"
 125                 echo "From: $REMOTE_ADDR"
 126                 echo
 127                 echo "$text"
 128         ) | HOME=/home/vpaste spamc -E > "$output"
 129
 130         # Test for spam
 131         if [ "$?" -ne 0 ]; then
 132                 # Report spam
 133                 header text/plain
 134                 echo "Your post has been marked as spam!"
 135                 echo "Spam test results are as folllows.. "
 136                 echo
 137                 cat "$output"
 138                 mv  "$output" spam
 139         else
 140                 # Redirect user
 141                 echo "Status: 302 Found"
 142                 echo "Location: $uri"
 143                 header text/plain
 144                 echo "$uri"
 145         fi
 146
 147 }
 148
 149 # Default index page
 150 function do_help {
 151 filetypes=$(
 152         ls /usr/share/vim/vim*/syntax/ /home/andy/.vim/syntax/ |
 153         sed -n '/^\(syntax\|manual\|synload\|2html\|colortest\|hitest\).vim$/d; s/.vim$//p' |
 154         sort | uniq
 155 )
 156 uploads=$(ls -t db | head -n 5)
 157
 158 header text/html
 159 cat - <<EOF
 160 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
 161   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 162 <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
 163         <head>
 164                 <title>vpaste.net - Vim based pastebin</title>
 165                 <meta http-equiv="Content-type" content="text/html;charset=UTF-8" />
 166                 <meta name="description" content="vpaste: Vim based pastebin" />
 167                 <meta name="keywords" content="vpaste,paste,pastebin,vim" />
 168                 <style type="text/css">
 169                         * { margin:0; padding:0; }
 170                         body { margin:1em; }
 171                         h4 { margin:1em 0 0 0; }
 172                         blockquote,dd,dl,p,pre,ul { margin:0 0 0 2em; }
 173                         dt { font-weight:bold; padding:0.5em 0 0 0; }
 174                         blockquote { width:50em; font-size:small; }
 175                         span { font-family:monospace; }
 176                 </style>
 177         </head>
 178         <body>
 179                 <form id="form" method="post" action="?" enctype="multipart/form-data">
 180                 <div style="margin:0 0 1.5em 0;">
 181                 <textarea name="text" cols="80" rows="25" style="width:100%; height:20em;"></textarea>
 182                 <select onchange="document.getElementById('form').action =
 183                         document.location + '?ft=' + this.value;">
 184                 <option value="" selected="selected" disabled="disabled">Filetype</option>
 185                 <option value="">None</option>
 186                 $(for ft in $filetypes; do
 187                         echo "<option>$ft</option>"
 188                 done)
 189                 </select>
 190                 <input type="submit" value="Paste" />
 191                 </div>
 192                 </form>
 193
 194                 <h4>NAME</h4>
 195                 <p>vpaste: Vim based pastebin</p>
 196
 197                 <h4>SYNOPSIS</h4>
 198                 <div>
 199                 <pre> vpaste file [option=value,..]</pre>
 200                 <pre> &lt;command&gt; | vpaste [option=value,..]</pre>
 201                 <br />
 202                 <pre> &lt;command&gt; | curl -F 'x=&lt;-' $url[?option=value,..]</pre>
 203                 <br />
 204                 <pre> :map vp :exec "w !vpaste ft=".&amp;ft&lt;CR&gt;</pre>
 205                 <pre> :vmap vp &lt;ESC&gt;:exec "'&lt;,'&gt;w !vpaste ft=".&amp;ft&lt;CR&gt;</pre>
 206                 </div>
 207
 208                 <h4>DESCRIPTION</h4>
 209                 <p>Add <b>?[option[=value],..]</b> to make your text a rainbow.</p>
 210                 <p>Options specified when uploading are used as defaults.</p>
 211
 212                 <h4>OPTIONS</h4>
 213                 <dl>
 214                 <dt>ft, filetype={filetype}</dt>
 215                 <dd>A filetype to use for highlighting, see above menu for supported types</dd>
 216                 <dt>bg, background={light|dark}</dt>
 217                 <dd>Background color to use for the page</dd>
 218                 <dt>et, expandtab</dt>
 219                 <dd>Expand tabs to spaces</dd>
 220                 <dt>ts, tabstop=[N]</dt>
 221                 <dd>Number of spaces to use for tabs when <b>et</b> is set</dd>
 222                 <dt>...</dt>
 223                 <dd>See :help modeline for more information</dd>
 224                 </dl>
 225
 226                 <h4>BUGS</h4>
 227                 <ul>
 228                 <li>Using strange filetypes (ft=2html) may result in strange output.</li>
 229                 <li><a href="mailto:andy753421@gmail.com?subject=vpaste bug">Other?</a></li>
 230                 </ul>
 231
 232                 <h4>SOURCE</h4>
 233                 <ul>
 234                 <li><a href="vpaste?ft=sh">vpaste</a></li>
 235                 <li><a href="index.cgi?ft=sh">index.cgi</a>
 236                     <a href="vimrc?ft=vim">vimrc</a>
 237                     <a href="htaccess?ft=apache">htaccess</a>
 238                     <a href="robots.txt?ft=robots">robots.txt</a>
 239                     <a href="sitemap.xml?ft=xml">sitemap.xml</a></li>
 240                 <li><a href="2html.patch?ft=diff">2html.patch</a></li>
 241                 <li><a href="https://lug.rose-hulman.edu/svn/misc/trunk/htdocs/vpaste/">Subversion</a></li>
 242                 </ul>
 243
 244                 <h4>LATEST UPLOADS</h4>
 245                 <ul>$(for upload in ${uploads[@]}; do
 246                         echo -n "<li>"
 247                         echo -n "<span>$upload</span> "
 248                         echo -n "<a href='$upload'>text</a> "
 249                         echo -n "<a href='$upload?'>rainbow</a>"
 250                         echo "</li>"
 251                 done)
 252                 </ul>
 253                 <p><a href="ls">list all</a></p>
 254                 <p><a href="head">sample all</a></p>
 255         </body>
 256 </html>
 257 EOF
 258 }
 259
 260 # Main
 261 url="http://$HTTP_HOST${REQUEST_URI/\?*}"
 262 pathinfo="${REQUEST_URI/*\/}"
 263 pathinfo="${pathinfo/\?*}"
 264
 265 if [ "$pathinfo" = ls ]; then
 266         do_cmd ls
 267 elif [ "$pathinfo" = head ]; then
 268         do_cmd head
 269 elif [ "$pathinfo" ]; then
 270         do_print "$pathinfo"
 271 elif [ "$CONTENT_TYPE" ]; then
 272         do_upload "${CONTENT_TYPE/*boundary\=/}"
 273 else
 274         do_help
 275 fi