54 lines
1.8 KiB
MySQL
54 lines
1.8 KiB
MySQL
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DELIMITER $$
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CREATE OR REPLACE DEFINER=`root`@`localhost` FUNCTION `account`.`passwordGenerate`()
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RETURNS text CHARSET utf8mb3 COLLATE utf8mb3_unicode_ci
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NOT DETERMINISTIC
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READS SQL DATA
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BEGIN
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/**
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* Generates a random password that meets the minimum requirements.
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*
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* @return Generated password
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*/
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DECLARE vMinLength TINYINT;
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DECLARE vMinAlpha TINYINT;
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DECLARE vMinUpper TINYINT;
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DECLARE vMinDigits TINYINT;
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DECLARE vMinPunct TINYINT;
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DECLARE vAlpha TINYINT DEFAULT 0;
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DECLARE vUpper TINYINT DEFAULT 0;
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DECLARE vDigits TINYINT DEFAULT 0;
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DECLARE vPunct TINYINT DEFAULT 0;
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DECLARE vRandIndex INT;
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DECLARE vPwd TEXT DEFAULT '';
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DECLARE vAlphaChars TEXT DEFAULT 'abcdefghijklmnopqrstuvwxyz';
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DECLARE vUpperChars TEXT DEFAULT 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
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DECLARE vDigitChars TEXT DEFAULT '1234567890';
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DECLARE vPunctChars TEXT DEFAULT '!$%&()=.';
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SELECT length, nAlpha, nUpper, nDigits, nPunct
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INTO vMinLength, vMinAlpha, vMinUpper, vMinDigits, vMinPunct FROM userPassword;
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WHILE LENGTH(vPwd) < vMinLength OR vAlpha < vMinAlpha
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OR vUpper < vMinUpper OR vDigits < vMinDigits OR vPunct < vMinPunct DO
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SET vRandIndex = FLOOR((RAND() * 4) + 1);
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CASE
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WHEN vRandIndex = 1 THEN
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SET vPwd = CONCAT(vPwd, SUBSTRING(vAlphaChars, FLOOR((RAND() * 26) + 1), 1));
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SET vAlpha = vAlpha + 1;
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WHEN vRandIndex = 2 THEN
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SET vPwd = CONCAT(vPwd, SUBSTRING(vUpperChars, FLOOR((RAND() * 26) + 1), 1));
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SET vUpper = vUpper + 1;
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WHEN vRandIndex = 3 THEN
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SET vPwd = CONCAT(vPwd, SUBSTRING(vDigitChars, FLOOR((RAND() * 10) + 1), 1));
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SET vDigits = vDigits + 1;
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WHEN vRandIndex = 4 THEN
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SET vPwd = CONCAT(vPwd, SUBSTRING(vPunctChars, FLOOR((RAND() * LENGTH(vPunctChars)) + 1), 1));
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SET vPunct = vPunct + 1;
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END CASE;
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END WHILE;
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RETURN vPwd;
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END$$
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DELIMITER ;
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