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103 lines
3.0 KiB
Bash
103 lines
3.0 KiB
Bash
#!/bin/bash
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# info: Add a specific email address to exim4 and spamassassin blacklist
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# usage: v-blacklist-email-account EMAIL
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#----------------------------------------------------------#
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# Variable&Function #
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#----------------------------------------------------------#
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whoami=$(whoami)
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if [ "$whoami" != "root" ]; then
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echo "You must be root to execute this script"
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exit 1
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fi
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# Importing system environment
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source /etc/profile
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# Determine Debian version and set SpamAssassin service name
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release=$(cat /etc/debian_version | tr "." "\n" | head -n1)
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if [ "$release" -lt 12 ]; then
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SPAMD_SERVICE="spamassassin.service"
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else
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SPAMD_SERVICE="spamd.service"
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fi
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DENY_SENDERS_FILE="/etc/exim4/deny_senders"
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SPAMASSASSIN_FILE="/etc/spamassassin/local.cf"
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# Flags to track changes
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SPAMASSASSIN_CHANGED=false
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# Function to check if an entry already exists in a file
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check_entry_exists() {
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local entry=$1
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local file=$2
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grep -qF "$entry" "$file"
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}
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# Function to add an entry to a file
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add_entry_to_file() {
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local entry=$1
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local file=$2
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echo "$entry" >> "$file"
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}
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# Display usage if no arguments are provided
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if [ $# -lt 1 ]; then
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echo "Usage: v-blacklist-email EMAIL"
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exit 1
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fi
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#----------------------------------------------------------#
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# Action #
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#----------------------------------------------------------#
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EMAIL=$1
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# Validate email format
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if [[ ! "$EMAIL" =~ ^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$ ]]; then
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echo "Invalid email address format."
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exit 1
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fi
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# Prepare entries for Exim4 and SpamAssassin
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EXIM_ENTRY="$EMAIL"
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SPAMASSASSIN_ENTRY="blacklist_from $EMAIL"
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#----------------------------------------------------------#
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# Exim4 Blacklist #
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#----------------------------------------------------------#
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echo "Updating $DENY_SENDERS_FILE..."
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if ! check_entry_exists "$EXIM_ENTRY" "$DENY_SENDERS_FILE"; then
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add_entry_to_file "$EXIM_ENTRY" "$DENY_SENDERS_FILE"
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echo "Added $EXIM_ENTRY to $DENY_SENDERS_FILE."
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else
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echo "$EXIM_ENTRY already exists in $DENY_SENDERS_FILE."
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fi
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#----------------------------------------------------------#
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# SpamAssassin Blacklist #
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#----------------------------------------------------------#
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echo "Updating $SPAMASSASSIN_FILE..."
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if ! check_entry_exists "$SPAMASSASSIN_ENTRY" "$SPAMASSASSIN_FILE"; then
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add_entry_to_file "$SPAMASSASSIN_ENTRY" "$SPAMASSASSIN_FILE"
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echo "Added $SPAMASSASSIN_ENTRY to $SPAMASSASSIN_FILE."
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SPAMASSASSIN_CHANGED=true
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else
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echo "$SPAMASSASSIN_ENTRY already exists in $SPAMASSASSIN_FILE."
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fi
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if [ "$SPAMASSASSIN_CHANGED" == "true" ]; then
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systemctl restart "$SPAMD_SERVICE"
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echo "SpamAssassin service ($SPAMD_SERVICE) restarted."
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fi
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#----------------------------------------------------------#
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# Done #
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#----------------------------------------------------------#
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exit 0
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