#!/bin/sh
set -eu
ROOT="/usr/share/nginx/html"
QS=""
# URL encode a string
url_encode() {
local string="$1"
printf '%s' "$string" | sed 's/ /%20/g; s/"/%22/g; s//%3E/g; s/&/%26/g; s/#/%23/g; s/+/%2B/g'
}
# build query string from WSQS_ env vars
while IFS='=' read -r key val; do
# Remove WSQS_ prefix and convert underscores to hyphens
key="${key#WSQS_}"
key="${key//_/-}"
# URL encode the value
encoded_val=$(url_encode "$val")
if [ -n "$QS" ]; then
QS="$QS&${key}=${encoded_val}"
else
QS="${key}=${encoded_val}"
fi
done << EOF
$(env | grep '^WSQS_')
EOF
if [ -n "$QS" ]; then
cat > "$ROOT/redirect.html" <
Redirecting
EOF
fi
exec nginx -g 'daemon off;'