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Add a stupid little guetsboook demo

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James Mills 2023-04-02 09:21:43 +10:00
parent b983f580e2
commit f9c93985d7
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guestbook Executable file
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#!/bin/sh
# guestbook - display the current guestbook entries, append a
# simple form for visitors to add their own comments, and
# accept and process new guest entries. Works with a separate
# data file that actually contains the guest data.
data="/Users/prologic/Projects/zs-starter-template"
guestbook="$data/guestbook.txt"
tempfile="/tmp/guestbook.$$"
sedtemp="/tmp/guestbook.sed.$$"
trap '/bin/rm -f $tempfile $sedtemp' 0
echo "Content-type: text/html"
echo ""
echo "<html><title>Guestbook for $(hostname)</title>"
echo "<body bgcolor='white'><h2>Guestbook for $(hostname)</h2>"
if [ "$REQUEST_METHOD" = "POST" ]; then
cat - | tr '&+' '\n ' >$tempfile # save the input stream
name="$(grep 'yourname=' $tempfile | cut -d= -f2)"
email="$(grep 'email=' $tempfile | cut -d= -f2 | sed 's/%40/@/')"
# Now, given a URL encoded string, decode some of the most important
# punctuation (but not all punctuation!)
cat <<"EOF" >$sedtemp
s/%2C/,/g;s/%21/!/g;s/%3F/?/g;s/%40/@/g;s/%23/#/g;s/%24/$/g
s/%25/%/g;s/%26/\&/g;s/%28/(/g;s/%29/)/g;s/%2B/+/g;s/%3A/:/g
s/%3B/;/g;s/%2F/\//g;s/%27/'/g;s/%22/"/g
EOF
comment="$(grep 'comment=' $tempfile | cut -d= -f2 | sed -f $sedtemp)"
# sequences to look out for: %3C = < %3E = > %60 = `
if echo $name $email $comment | grep '%'; then
echo "<h3>Failed: illegal character or characters in input:"
echo "Not saved.<br>Please also note that no HTML is allowed.</h3>"
elif [ ! -w $guestbook ]; then
echo "<h3>Sorry, can't write to the guestbook at this time.</h3>"
else
# all is well. Save it to the datafile!
echo "$(date)|$name|$email|$comment" >>$guestbook
chmod 777 $guestbook # ensure it's not locked out to webmaster
fi
fi
# do we have a guestbook to work with?
if [ -f $guestbook ]; then
echo "<table>"
while read line; do
date="$(echo $line | cut -d\| -f1)"
name="$(echo $line | cut -d\| -f2)"
email="$(echo $line | cut -d\| -f3)"
comment="$(echo $line | cut -d\| -f4)"
echo "<tr><td><a href='mailto:$email'>$name</a> signed thusly:</td></tr>"
echo "<tr><td><div style='margin-left: 1in'>$comment</div></td></tr>"
echo "<tr><td align=right style='font-size:60%'>Added $date"
echo "<hr noshade></td></tr>"
done <$guestbook
echo "</table>"
fi
# input form...
echo "<form method='post' action='$(basename $0)'>"
echo "Please feel free to sign our guestbook too:<br>"
echo "Your name: <input type='text' name='yourname'><br>"
echo "Your email address: <input type='text' name='email'><br>"
echo "And your comment:<br>"
echo "<textarea name='comment' rows='5' cols='65'></textarea>"
echo "<br><input type='submit' value='sign our guest book'>"
echo "</form>"
echo "</body></html>"
exit 0

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guestbook.txt Normal file
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index.md
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@ -81,6 +81,7 @@ With the [wikilink][wikilink] extension you can link to other pages more easily
### Remember cgi scripts? ### Remember cgi scripts?
- [[TestCGI]] - [[TestCGI]]
- [Guest Book](./guestbook)
## License ## License