Password Strength Checker #22

source/Backend/PasswordChecker.cpp

@@ -0,0 +1,39 @@
+#include "PasswordChecker.hpp"
+#include <regex>
+
+PasswordChecker::PasswordChecker(const std::string& password) : password(password) {}
+
+bool PasswordChecker::isSafe() {
+    bool hasMinimumLength_      = hasMinimumLength();
+    bool hasMinimumUppercase_   = hasMinimumUppercase();
+    bool hasMinimumLowercase_   = hasMinimumLowercase();
+    bool hasMinimumDigit_       = hasMinimumDigit();
+    bool hasMinimumSpecialChar_ = hasMinimumSpecialChar();
+
+    return
+        hasMinimumLength_    &&
+        hasMinimumUppercase_ &&
+        hasMinimumLowercase_ &&
+        hasMinimumDigit_     &&
+        hasMinimumSpecialChar_;
+}
+
+bool PasswordChecker::hasMinimumLength() const {
+    return password.length() >= 8;
+}
+
+bool PasswordChecker::hasMinimumUppercase() const {
+    return std::regex_search(password, std::regex("[A-Z]"));
+}
+
+bool PasswordChecker::hasMinimumLowercase() const {
+    return std::regex_search(password, std::regex("[a-z]"));
+}
+
+bool PasswordChecker::hasMinimumDigit() const {
+    return std::regex_search(password, std::regex("[0-9]"));
+}
+
+bool PasswordChecker::hasMinimumSpecialChar() const {
+    return std::regex_search(password, std::regex("[^a-zA-Z0-9]"));
+}

source/Backend/PasswordChecker.hpp

@@ -0,0 +1,23 @@
+#include <string>
+
+class PasswordChecker {
+public:
+    PasswordChecker(const std::string& password);
+
+    bool isSafe();
+
+private:
+    std::string password;
+
+    bool hasMinimumLength_;
+    bool hasMinimumUppercase_;
+    bool hasMinimumLowercase_;
+    bool hasMinimumDigit_;
+    bool hasMinimumSpecialChar_;
+
+    bool hasMinimumLength() const;
+    bool hasMinimumUppercase() const;
+    bool hasMinimumLowercase() const;
+    bool hasMinimumDigit() const;
+    bool hasMinimumSpecialChar() const;
+};