Check that MIME type header and file content match

mimetypecheck.sh

#!/bin/sh
#
# Check that the MIME type sent be a web server and the type of data in the file match.
#
# Usage: mimetypecheck.sh http://example.com/ http://example.org/

CURL="curl --silent"

for URL in $*; do

	PATT=$(mktemp -t typecheck)
	HEAD="${PATT}.head"
	BODY="${PATT}.body"

	$CURL "$URL" --dump-header "$HEAD" -o "$BODY"

	ASSERT=$(grep -i content-type "$HEAD" | cut -d: -f2 | cut -d\; -f1 | tr -d " ")
	ACTUAL=$(file -bI "$BODY" | cut -d\; -f1 | tr -d " ")

	echo "$URL"
	echo "Sent: ${ASSERT}"
	echo "Real: ${ACTUAL}"
	echo

	rm -f "$PATT" "${PATT}.head" "${PATT}.body"
done