Pileus Git - vpaste/blob - index.cgi

   1 #!/bin/bash
   2
   3 # Copyright (C) 2009-2012 Andy Spencer
   4 #
   5 # This program is free software: you can redistribute it and/or modify it under
   6 # the terms of the GNU Affero General Public License as published by the Free
   7 # Software Foundation, either version 3 of the License, or (at your option) any
   8 # later version.
   9 #
  10 # This program is distributed in the hope that it will be useful, but WITHOUT
  11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  12 # FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more
  13 # details.
  14
  15 # Remove url codings from stdin
  16 function get_modeline {
  17         echo "$QUERY_STRING" |
  18         sed -e 's/%\([0-9A-F][0-9A-F]\)/\\\\\x\1/g; s/[,&?]/ /g' |
  19         xargs echo -e
  20 }
  21 function get_param {
  22         get_modeline | awk -v "key=$1" 'BEGIN{RS=" "; FS="="}; $1 ~ key {print $2}'
  23 }
  24
  25 # Extract an uploaded file from standard input
  26 #   $1 is the name of the input to extract
  27 function cut_file {
  28         bnd="${CONTENT_TYPE/*boundary\=/}"
  29         awk -v "want=$1" -v "bnd=$bnd" '
  30                 BEGIN { RS="\r\n" }
  31
  32                 # reset based on boundaries
  33                 $0 == "--"bnd""     { st=1; next; }
  34                 $0 == "--"bnd"--"   { st=0; next; }
  35                 $0 == "--"bnd"--\r" { st=0; next; }
  36
  37                 # search for wanted file
  38                 st == 1 && $0 ~  "^Content-Disposition:.* name=\""want"\"" { st=2; next; }
  39                 st == 1 && $0 == "" { st=9; next; }
  40
  41                 # wait for newline, then start printing
  42                 st == 2 && $0 == "" { st=3; next; }
  43                 st == 3             { print $0    }
  44         ' | head -c $((128*1024)) # Limit size to 128K
  45 }
  46
  47 # Print out a generic header
  48 function header {
  49         echo "Content-Type: $1; charset=UTF-8"
  50         echo
  51 }
  52
  53 # Print plain message and exit
  54 function message {
  55         while [ "$1" == '-h' ]; do
  56                 shift; echo "$1"; shift
  57         done
  58         header text/plain
  59         echo "$*"
  60         exit
  61 }
  62
  63 # List previous pastes
  64 function do_cmd {
  65         header text/plain
  66         case "$1" in
  67         head)
  68                 for i in $(ls -t db/*); do
  69                         basename $i
  70                         basename $i | sed 's/./-/g'
  71                         sed '1,/^$/d; /^\s*$/d' $i | sed -n '1,5s/\(.\{0,60\}\).*/\1/p'
  72                         echo
  73                 done
  74                 ;;
  75         ls)
  76                 ls -t db | column
  77                 ;;
  78         esac
  79 }
  80
  81 # Format a file for viewing
  82 function do_print {
  83         if [ -f "./$1" ]; then
  84                 input="$1"
  85         elif [ -f "db/$1" ]; then
  86                 input="db/$1"
  87                 trim='1,/^$/d' # sed command to remove cruft
  88         else
  89                 message -h 'Status: 404 Not Found' \
  90                         "File '$1' not found"
  91         fi
  92
  93         # Check for raw paste
  94         if [[ "$QUERY_STRING" == 'raw'* ||
  95               "$REQUEST_URI"  != *'?'* &&
  96               ( "$input"       != 'db/'* ||
  97                 "$HTTP_ACCEPT" != *'html'* ) ]]; then
  98                 header text/plain
  99                 sed "$trim" "$input"
 100                 exit
 101         fi
 102
 103         # Create a temp file with the provided modeline
 104         output="$(mktemp)"
 105         tmp="$(mktemp)"
 106         sed "\$avim: $(get_modeline)" "$input" > "$tmp"
 107
 108         # - I have some plugins in ~/.vim
 109         # - Run ex in screen to trick it into thinking that it
 110         #   has a real terminal, note that we also have to set
 111         #   term=xterm-256color in vimrc
 112         HOME=/home/andy \
 113         screen -D -m ex -nXZ -i NONE -u vimrc \
 114                 '+sil! set fde= fdt= fex= inde= inex= key= pa= pexpr=' \
 115                 '+sil! set iconstring= ruf= stl= tal=' \
 116                 "+sil! set titlestring=$1\ -\ vpaste.net" \
 117                 '+sil! set noml'     \
 118                 '+sil! $d|'$trim     \
 119                 '+sil! %s/\r//g' \
 120                 '+sil! TOhtml'       \
 121                 "+sav! $output" \
 122                 '+qall!'        \
 123                 "$tmp"
 124
 125         header text/html
 126         cat "$output"
 127         rm "$tmp" "$output"
 128 }
 129
 130
 131 # Upload handler
 132 function do_upload {
 133         body=$(cat -)
 134         spam=$(echo -n "$body" | cut_file "ignoreme")
 135         text=$(echo -n "$body" | cut_file "(text|x)")
 136         [ ! -z "$spam" ] && message "Spam check.."
 137         [   -z "$text" ] && message "No text pasted"
 138
 139         # Format and save message
 140         output="$(mktemp db/XXXXX)"
 141         cat >"$output" <<-EOF
 142                 vim: $(get_modeline)
 143                 Date: $(date -R)
 144                 From: $REMOTE_ADDR
 145
 146                 $text
 147         EOF
 148
 149         # Redirect user
 150         uri="$url$(basename "$output")"
 151         message -h 'Status: 302 Found' \
 152                 -h "Location: $uri"    \
 153                 "$uri"
 154 }
 155
 156 # Default index page
 157 function do_help {
 158         filetypes=$(
 159                 ls /usr/share/vim/vim*/syntax/ /home/andy/.vim/syntax/ |
 160                 sed -n '/^\(syntax\|manual\|synload\|2html\|colortest\|hitest\).vim$/d; s/.vim$//p' |
 161                 sort | uniq
 162         )
 163         uploads=$(ls -t db | head -n 5)
 164         filetype=$(get_param '^(ft|filet(y(pe?)?)?)$')
 165         vpaste='<a href="vpaste?ft=sh">vpaste</a>'
 166
 167         header text/html
 168         cat <<-EOF
 169         <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
 170           "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 171         <html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
 172                 <head>
 173                         <title>vpaste.net - Vim based pastebin</title>
 174                         <meta http-equiv="Content-type" content="text/html;charset=UTF-8" />
 175                         <meta name="description" content="vpaste: Vim based pastebin" />
 176                         <meta name="keywords" content="vpaste,paste,pastebin,vim" />
 177                         <meta name="google-site-verification" content="OvHF73zD7osJ1VSq9rJxnMFlja36944ud6CiP_iXQnI" />
 178                         <style type="text/css">
 179                                 *          { margin: 0;
 180                                              padding: 0; }
 181                                 body       { margin: 4em 8em 4em 8em;
 182                                              font-family: sans-serif; }
 183                                 /* Items */
 184                                 textarea   { width: 100%;
 185                                              margin-bottom: 0.5em; }
 186                                 .buttons   { float: left; }
 187                                 .links     { float: right; }
 188                                 .links a   { text-decoration: none;
 189                                              margin-left: 0.4em; }
 190                                 .box       { display: none;
 191                                              clear: both;
 192                                              margin-top: 2.7em;
 193                                              border-top: solid 1px #888; }
 194                                 /* box contents */
 195                                 h1         { margin-top: 1.0em;
 196                                              font-size: larger; }
 197                                 ul,dd,dl,p { margin: 0 0 0 2em; }
 198                                 dt         { font-weight: bold;
 199                                              padding: 0.5em 0 0 0; }
 200                                 span       { font-family: monospace; }
 201                                 .cmds dd   { font-family: monospace; }
 202                         </style>
 203                         <script>
 204                                 function show(id) {
 205                                         boxes = document.getElementsByClassName('box');
 206                                         for (i=0; i<boxes.length; i++) {
 207                                                 box = boxes[i]
 208                                                 if (box.id == id && box.style.display != 'block')
 209                                                         box.style.display = 'block'
 210                                                 else
 211                                                         box.style.display = "none"
 212                                         }
 213                                 }
 214                         </script>
 215                 </head>
 216
 217                 <body>
 218                         <form id="form" method="post" action="" enctype="multipart/form-data">
 219                                 <input style="display:none" type="text" name="ignoreme" value="" />
 220                                 <textarea name="text" cols="80" rows="25"></textarea>
 221                                 <div class="buttons">
 222                                         <select onchange="document.getElementById('form').action =
 223                                                           document.location + '?ft=' + this.value;">
 224                                                 <option value="" disabled="disabled">Filetype</option>
 225                                                 <option value="">None</option>
 226                                                 $(for ft in $filetypes; do
 227                                                         echo "<option$(
 228                                                         [ "$ft" = "$filetype" ] &&
 229                                                                 echo ' selected="selected"'
 230                                                         )>$ft</option>"
 231                                                 done)
 232                                         </select>
 233                                         <input type="submit" value="Paste" />
 234                                 </div>
 235                                 <div class="links">
 236                                         <a href="javascript:show('usage'  )">Usage</a>
 237                                         <a href="javascript:show('devel'  )">Development</a>
 238                                         <a href="javascript:show('uploads')">Uploads</a>
 239                                 </div>
 240                         </form>
 241
 242                         <div class="box" id="usage">
 243                                 <h1>Pasting</h1>
 244                                 <dl class="cmds">
 245                                         <dt>From a shell</dt>
 246                                         <dd> $vpaste file [option=value,..]</dd>
 247                                         <dd> &lt;command&gt; | $vpaste [option=value,..]</dd>
 248
 249                                         <dt>From Vim</dt>
 250                                         <dd> :map vp :exec "w !vpaste ft=".&amp;ft&lt;CR&gt;</dd>
 251                                         <dd> :vmap vp &lt;ESC&gt;:exec "'&lt;,'&gt;w !vpaste ft=".&amp;ft&lt;CR&gt;</dd>
 252
 253                                         <dt>With curl</dt>
 254                                         <dd> &lt;command&gt; | curl -F 'text=&lt;-' $url[?option=value,..]</dd>
 255                                 </dl>
 256
 257                                 <h1>Options</h1>
 258                                 <p>Add <b>?option[=value],..</b> to make your text a rainbow.</p>
 259                                 <p>Options specified when uploading are saved as defaults.</p>
 260
 261                                 <dl>
 262                                         <dt>ft, filetype={filetype}</dt>
 263                                         <dd>A filetype to use for highlighting, see above menu for supported types</dd>
 264                                         <dt>fdm, foldmethod=(syntax|indent)</dt>
 265                                         <dd>Turn on dynamic code folding</dd>
 266                                         <dt>bg, background={light|dark}</dt>
 267                                         <dd>Background color to use for the page</dd>
 268                                         <dt>et, expandtab</dt>
 269                                         <dd>Expand tabs to spaces</dd>
 270                                         <dt>ts, tabstop=[N]</dt>
 271                                         <dd>Number of spaces to use for tabs when <b>et</b> is set</dd>
 272                                         <dt>...</dt>
 273                                         <dd>See :help modeline for more information</dd>
 274                                 </dl>
 275                         </div>
 276
 277                         <div class="box" id="devel">
 278                                 <h1>License</h1>
 279                                 <p>Copyright © 2009-2012
 280                                    Andy spencer &lt;andy753421@gmail.com&gt;</p>
 281                                 <p>See individual files for license</p>
 282
 283                                 <h1>Source code</h1>
 284                                 <ul>
 285                                         <li><a href="vpaste?ft=sh">vpaste</a></li>
 286                                         <li><a href="index.cgi?ft=sh">index.cgi</a>
 287                                             <a href="vimrc?ft=vim">vimrc</a>
 288                                             <a href="htaccess?ft=apache">htaccess</a>
 289                                             <a href="robots.txt?ft=robots">robots.txt</a>
 290                                             <a href="sitemap.xml?ft=xml">sitemap.xml</a></li>
 291                                         <li><a href="2html.patch?ft=diff">2html.patch</a></li>
 292                                         <li><a href="https://lug.rose-hulman.edu/svn/misc/trunk/htdocs/vpaste/">Subversion</a></li>
 293                                 </ul>
 294
 295                                 <h1>Bugs</h1>
 296                                 <ul>
 297                                         <li>Using strange filetypes (ft=2html) may result in strange output.</li>
 298                                         <li><a href="mailto:andy753421@gmail.com?subject=vpaste bug">Other?</a></li>
 299                                 </ul>
 300                         </div>
 301
 302                         <div class="box" id="uploads">
 303                                 <h1>Recent Uploads</h1>
 304                                 <ul>$(for upload in ${uploads[@]}; do
 305                                     echo -n "<li>"
 306                                     echo -n "<span>$upload</span> "
 307                                     echo -n "<a href='$upload?raw'>text</a> "
 308                                     echo -n "<a href='$upload'>rainbow</a>"
 309                                     echo "</li>"
 310                                 done)
 311                                 </ul>
 312                                 <p><a href="ls">list all</a></p>
 313                                 <p><a href="head">sample all</a></p>
 314                         </div>
 315                 </body>
 316         </html>
 317         EOF
 318 }
 319
 320 # Main
 321 PATH=/bin:/usr/bin
 322 url="http://$HTTP_HOST${REQUEST_URI/\?*}"
 323 pathinfo="${REQUEST_URI/*\/}"
 324 pathinfo="${pathinfo/\?*}"
 325
 326 if [ "$pathinfo" = ls ]; then
 327         do_cmd ls
 328 elif [ "$pathinfo" = head ]; then
 329         do_cmd head
 330 elif [ "$pathinfo" ]; then
 331         do_print "$pathinfo"
 332 elif [ "$CONTENT_TYPE" ]; then
 333         do_upload
 334 else
 335         do_help
 336 fi