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extended input validation

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allan
2025-11-03 09:37:46 +01:00
parent bf121178e9
commit f53b3bd04e
1 changed files with 36 additions and 13 deletions
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49
wordpressinstall
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@@ -65,17 +65,6 @@ usage() {
printf -- " -h | -help | --help Show this help screen\n\n"
}
#
# Function inputcheck
#
inputcheck () {
[[ -z "$hostname" ]] && { usage; echo ""; echo "Error! Hostname empty."; echo ""; exit 1; }
[[ "$hostname" =~ [[:space:]/] ]] && { echo "ERROR: DOMAIN INVALID (no spaces or slashes allowed)"; exit 1; }
[[ -z "$dbname" ]] && { usage; echo ""; echo "Error! Database name empty."; echo ""; exit 1; }
[[ -z "$dbuser" ]] && { usage; echo ""; echo "Error! Database user empty."; echo ""; exit 1; }
[[ -z "$dbpass" ]] && { usage; echo ""; echo "Error! Database password empty."; echo ""; exit 1; }
}
#
# Let's go
#
@@ -109,9 +98,43 @@ while getopts ":n:d:u:p:m:a:h" option; do
done
#
# Check if input conditions are met
# Parse and validate input
#
inputcheck "$hostname" "$dbname" "$dbuser" "$dbpass"
if [[ -z "$hostname" || -z "$dbname" || -z "$dbuser" || -z "$dbpass" ]]; then
usage
printf "\nERROR: Missing required arguments.\n"
printf "Hostname (-n), Database name (-d), User (-u), and Password (-p) are mandatory.\n\n"
exit 1
fi
# Convert to lowercase (domains are case-insensitive)
hostname=$(echo "$hostname" | tr '[:upper:]' '[:lower:]')
# Disallow leading hyphen
if [[ "$hostname" =~ ^- ]]; then
printf "\nERROR: Domain cannot start with a hyphen.\n"
printf "Example of valid input: wp.example.com\n\n"
exit 1
fi
# Disallow spaces, slashes, underscores
if [[ "$hostname" =~ [[:space:]/_] ]]; then
printf "\nERROR: Domain cannot contain spaces, slashes, or underscores.\n\n"
exit 1
fi
# Validate domain format (RFC 1123)
if [[ ! "$hostname" =~ ^([a-z0-9]+(-[a-z0-9]+)*\.)+[a-z]{2,}$ ]]; then
printf "\nERROR: Invalid domain format.\n"
printf "Example of valid input: wp.example.com\n\n"
exit 1
fi
# Check for spaces in DB credentials
if [[ "$dbname" =~ [[:space:]] || "$dbuser" =~ [[:space:]] || "$dbpass" =~ [[:space:]] ]]; then
printf "\nERROR: Database name, user, and password cannot contain spaces.\n\n"
exit 1
fi
#
# Download, install, and configure the latest WordPress version