From 3c8b886b095d9892b2c49c37771888d7b9e7132e Mon Sep 17 00:00:00 2001
From: Price Hiller <price@orion-technologies.io>
Date: Sun, 14 Jul 2024 17:44:41 -0500
Subject: [PATCH] cs-3424: add solution to assignment 2

---
 .../Assignments/Assignment-2/src/assign2.bash | 34 +++++++++++++++++++
 .../Assignments/Assignment-2/src/assign2.sed  | 15 ++++++++
 2 files changed, 49 insertions(+)
 create mode 100755 Summer-2024/CS-3424/Assignments/Assignment-2/src/assign2.bash
 create mode 100644 Summer-2024/CS-3424/Assignments/Assignment-2/src/assign2.sed

diff --git a/Summer-2024/CS-3424/Assignments/Assignment-2/src/assign2.bash b/Summer-2024/CS-3424/Assignments/Assignment-2/src/assign2.bash
new file mode 100755
index 0000000..2ae48a1
--- /dev/null
+++ b/Summer-2024/CS-3424/Assignments/Assignment-2/src/assign2.bash
@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+
+set -eEuo pipefail
+
+SCRIPT_DIR="$(dirname "${BASH_SOURCE[0]}")"
+
+replace_date_placeholders_in_file() {
+	local file="${1}"
+	local current_date
+	current_date="$(date +"%d\/%m\/%Y")"
+	sed -ri "s/(<dstamp>|<date>)/$current_date/g" "$file"
+
+}
+
+replace_municipality_name_placeholders_in_file() {
+	local file="${1}"
+	local municipality_name="City of Brook Haven, Connecticut"
+	sed -ri "s/(<mname>|<muname>)/$municipality_name/g" "$file"
+}
+
+redact_file() {
+	local file="${1}"
+	sed -ri -f "${SCRIPT_DIR}/assign2.sed" "$file"
+}
+
+main() {
+	for file in "${@}"; do
+		redact_file "$file"
+		replace_date_placeholders_in_file "$file"
+		replace_municipality_name_placeholders_in_file "$file"
+	done
+}
+
+main "${@}"
diff --git a/Summer-2024/CS-3424/Assignments/Assignment-2/src/assign2.sed b/Summer-2024/CS-3424/Assignments/Assignment-2/src/assign2.sed
new file mode 100644
index 0000000..846bc05
--- /dev/null
+++ b/Summer-2024/CS-3424/Assignments/Assignment-2/src/assign2.sed
@@ -0,0 +1,15 @@
+# Redact Driver's License numbers
+s/[a-zA-Z]{2}\s?DL [0-9]{6,8}/DL <redacted>/g
+
+# Redact Credit Card Numbers
+## Visa Cards
+s/4[0-9]{3}-?[0-9]{4}-?[0-9]{4}-?([0-9]{4})/VISA-\1/g
+## Master Cards
+s/5[0-9]{3}-?[0-9]{4}-?[0-9]{4}-?([0-9]{4})/MC-\1/g
+## Discover Cards
+s/6[0-9]{3}-?[0-9]{4}-?[0-9]{4}-?([0-9]{4})/DISC-\1/g
+## Amex Cards (Important that it comes last because it collides inside larger card lengths)
+s/3[47][0-9]{2}-?[0-9]{6}-?[0-9]([0-9]{4})/AMEX-\1/g
+
+# Redact license plates
+s/TX\s?[[:alnum:]]{3}-?([[:digit:]]{4}|[[:alnum:]]{3})/TX <redacted>/g