#!/bin/sh
-# Copyright 2016 - 2018 Paul Hänsch
+# Copyright 2016 - 2019 Paul Hänsch
#
# This file is part of cgilite.
#
}
FILE(){
- local file file_size file_date http_date cachedate range
- file="$1"
+ local file file_size file_date http_date cachedate range mime
+ file="$1" mime="$2"
if ! [ -f "$file" ]; then
printf 'Content-Length: 0\r\nStatus: 404 Not Found\r\n\r\n'
# Parse the allowable date formats from Section 3.3.1 of
# https://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html
HEADER If-Modified-Since \
- | sed -r 's;^[^ ]+, ([0-9]{2}) (...) ([0-9]{4}) (..:..:..) GMT$;\3-\2-\1 \4;;
+ | sed -E 's;^[^ ]+, ([0-9]{2}) (...) ([0-9]{4}) (..:..:..) GMT$;\3-\2-\1 \4;;
s;^[^ ]+, ([0-9]{2})-(...)-([789][0-9]) (..:..:..) GMT$;19\3-\2-\1 \4;;
s;^[^ ]+, ([0-9]{2})-(...)-([0-6][0-9]) (..:..:..) GMT$;20\3-\2-\1 \4;;
s;^[^ ]+ (...) ([0-9]{2}) (..:..:..) ([0-9]{4})$;\4-\1-\2 \3;;
s;^[^ ]+ (...) ([0-9]) (..:..:..) ([0-9]{4})$;\4-\1-\2 \3;;
s;Jan;01;; s;Feb;02;; s;Mar;03;; s;Apr;04;; s;May;05;; s;Jun;06;;
s;Jul;07;; s;Aug;08;; s;Sep;09;; s;Oct;10;; s;Nov;11;; s;Dec;12;;' \
- | xargs -0 date +%s -ud 2>&-
+ | xargs -r0 date +%s -ud 2>&-
)"
- range="$(HEADER Range |sed -nr 's;^bytes=([0-9]+-[0-9]*|-[0-9]+)$;\1;p;q;')"
+ range="$(HEADER Range |sed -nE 's;^bytes=([0-9]+-[0-9]*|-[0-9]+)$;\1;p;q;')"
case "$range" in
*-) range="${range}$((file_size - 1))";;
-*) [ ${range#-} -le $file_size ] \
Status "200 OK" \
Accept-Ranges bytes \
Last-Modified "$http_date" \
- Content-Type $(file_type "$file") \
+ Content-Type "${mime:-$(file_type "$file")}" \
Content-Length $file_size
printf '\r\n'
Status "206 Partial Content" \
Accept-Ranges bytes \
Last-Modified "$http_date" \
- Content-Type $(file_type "$file") \
+ Content-Type "${mime:-$(file_type "$file")}" \
Content-Range "bytes ${range}/${file_size}" \
Content-Length "$((${range#*-} - ${range%-*} + 1))"
printf '\r\n'