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 start_html {
  39         echo "Content-Type: text/html; charset=UTF-8"
  40         echo
  41 }
  42
  43 # Print out a generic header
  44 function start_text {
  45         echo "Content-Type: text/plain; charset=UTF-8"
  46         echo
  47 }
  48
  49 # Format a file for viewing
  50 function do_print {
  51         if [ -f "$1" ]; then
  52                 input="$1"
  53         elif [ -f "db/$1" ]; then
  54                 input="db/$1"
  55                 trim='1d' # sed command to remove cruft
  56         else
  57                 echo "Status: 404"
  58                 start_text
  59                 echo "File '$1' not found"
  60                 return
  61         fi
  62
  63
  64         if [[ "$REQUEST_URI" == *'?'* ]]; then
  65                 # Create a temp file with the provided modeline
  66                 output="$(mktemp)"
  67                 tmp="$(mktemp)"
  68                 cat  "$input" >> "$tmp"
  69                 get_modeline  >> "$tmp"
  70
  71                 # - I have some plugins in ~/.vim
  72                 # - Run ex in screen to trick it into thinking that it
  73                 #   has a real terminal, not that we also have to set
  74                 #   term=xterm-256color in vimrc
  75                 HOME=/home/andy \
  76                 screen -D -m ex -u vimrc \
  77                         '+$d|'$trim     \
  78                         '+TOhtml'       \
  79                         "+sav! $output" \
  80                         '+qall!'        \
  81                         "$tmp"
  82
  83                 start_html
  84                 cat "$output"
  85                 rm "$tmp" "$output"
  86         else
  87                 start_text
  88                 sed "$trim" "$input"
  89         fi
  90 }
  91
  92
  93 # Upload handler
  94 function do_upload {
  95         output="$(mktemp db/XXXXX)"
  96         uri="$SCRIPT_URI$(basename "$output")"
  97         (get_modeline; cut_file "$1") > "$output"
  98         start_text
  99         echo "$uri${QUERY_STRING:+"?"}"
 100 }
 101
 102 # Default index page
 103 function do_help {
 104 filetypes=$(
 105         ls /usr/share/vim/vim{72,files}/syntax/ /home/andy/.vim/after/syntax/ |
 106         sed -n 's/.vim$//p' | sort | uniq
 107 )
 108 uploads=$(ls -t db | head -n 5 | sed "s!^!$SCRIPT_URI!")
 109
 110 start_html
 111 cat - <<EOF
 112 <html>
 113         <head>
 114                 <style>
 115                 * { margin:0; padding:0; }
 116                 body { margin:1em; }
 117                 h4 { margin:1em 0 0 0; }
 118                 p,ul,dl,dd,pre,blockquote { margin:0 0 0 2em; }
 119                 dt { font-weight:bold; padding:0.5em 0 0 0; }
 120                 blockquote { width:50em; font-size:small; }
 121                 </style>
 122         </head>
 123         <body>
 124                 <h4>NAME</h4>
 125                 <p>vpaste: Vim enabled pastebin</p>
 126
 127                 <h4>SYNOPSIS</h4>
 128                 <pre> vpaste file [option=value,..]</pre>
 129                 <pre> &lt;command&gt; | vpaste [option=value,..]</pre>
 130                 <br>
 131                 <pre> &lt;command&gt; | curl -F 'x=<-' $SCRIPT_URI[?option=value,..]</pre>
 132
 133                 <h4>DESCRIPTION</h4>
 134                 <p>Add <b>?[option[=value],..]</b> to make your text a rainbow.</p>
 135                 <p>Options specified when uploading are used as defaults.</p>
 136
 137                 <h4>OPTIONS</h4>
 138                 <dl>
 139                 <dt>ft, filetype={filetype}</dt>
 140                 <dd>A filetype to use for highlighting, see FILETYPES</dd>
 141                 <dt>bg, background={light|dark}</dt>
 142                 <dd>Background color to use for the page</dd>
 143                 <dt>et, expandtab</dt>
 144                 <dd>Expand tabs to spaces</dd>
 145                 <dt>ts, tabstop=[N]</dt>
 146                 <dd>Number of spaces to use for tabs when <b>et</b> is set</dd>
 147                 <dt>...</dt>
 148                 <dd>See :help modeline for more information</dd>
 149                 </dl>
 150
 151                 <h4>SOURCE</h4>
 152                 <ul>
 153                 <li><a href="vpaste?ft=sh">vpaste</a>
 154                 <li><a href="index.cgi?ft=sh">index.cgi</a>
 155                     <a href="vimrc?ft=vim">vimrc</a>
 156                     <a href="htaccess?ft=apache">htaccess</a>
 157                 <li><a href="2html-et.patch?ft=diff">2html-et.patch</a>
 158                 </ul>
 159
 160                 <h4>LATEST UPLOADS</h4>
 161                 <ul>$(for uri in ${uploads[@]}; do
 162                         echo "<li><a href='$uri'>$uri</a>"
 163                 done)</ul>
 164
 165                 <h4>FILETYPES</h4>
 166                 <blockquote>$filetypes</blockquote>
 167         </body>
 168 </html>
 169 EOF
 170 }
 171
 172 # Main
 173 pathinfo="${SCRIPT_URL/*vpaste\/}"
 174 boundary="${CONTENT_TYPE/*boundary\=/}"
 175
 176 if [ "$pathinfo" ]; then
 177         do_print "$pathinfo"
 178 elif [ "$CONTENT_TYPE" ]; then
 179         do_upload "$boundary"
 180 else
 181         do_help
 182 fi