function testIsEmailValid()
{
$this->assertTrue(LoginUtils::IsEmailValid('*****@*****.**'));
$this->assertTrue(LoginUtils::IsEmailValid('"Abc\\@def"@example.com'));
$this->assertTrue(LoginUtils::IsEmailValid('!#$%&\'*+-/=?^_`{}|~@example.org'));
$this->assertTrue(LoginUtils::IsEmailValid('!def!xyz%abc@example.com'));
$this->assertFalse(LoginUtils::IsEmailValid('*****@*****.**'));
$this->assertFalse(LoginUtils::IsEmailValid('A@b@c@example.com'));
$this->assertFalse(LoginUtils::IsEmailValid('a"b(c)d,e:f;g<h>i[j\\k]l@example.com'));
$this->assertFalse(LoginUtils::IsEmailValid('this is"not\\allowed@example.com'));
$this->assertFalse(LoginUtils::IsEmailValid('A@b@c@example.com'));
}
function validateFields($fields, $rules)
{
$errors = array();
// loop through rules
for ($i = 0; $i < count($rules); $i++) {
// split row into component parts
$row = explode(",", $rules[$i]);
// while the row begins with "if:..." test the condition. If true, strip the if:..., part and
// continue evaluating the rest of the line. Keep repeating this while the line begins with an
// if-condition. If it fails any of the conditions, don't bother validating the rest of the line
$satisfies_if_conditions = true;
while (preg_match("/^if:/", $row[0])) {
$condition = preg_replace("/^if:/", "", $row[0]);
// check if it's a = or != test
$comparison = "equal";
$parts = array();
if (preg_match("/!=/", $condition)) {
$parts = explode("!=", $condition);
$comparison = "not_equal";
} else {
$parts = explode("=", $condition);
}
$field_to_check = $parts[0];
$value_to_check = $parts[1];
// if the VALUE is NOT the same, we don't need to validate this field. Return.
if ($comparison == "equal" && $fields[$field_to_check] != $value_to_check) {
$satisfies_if_conditions = false;
break;
} else {
if ($comparison == "not_equal" && $fields[$field_to_check] == $value_to_check) {
$satisfies_if_conditions = false;
break;
} else {
array_shift($row);
}
}
// remove this if-condition from line, and continue validating line
}
if (!$satisfies_if_conditions) {
continue;
}
$requirement = $row[0];
$field_name = $row[1];
// depending on the validation test, store the incoming strings for use later...
if (count($row) == 6) {
$field_name2 = $row[2];
$field_name3 = $row[3];
$date_flag = $row[4];
$error_message = $row[5];
} else {
if (count($row) == 5) {
$field_name2 = $row[2];
$field_name3 = $row[3];
$error_message = $row[4];
} else {
if (count($row) == 4) {
$field_name2 = $row[2];
$error_message = $row[3];
} else {
$error_message = $row[2];
}
}
}
// everything else!
// if the requirement is "length=...", rename requirement to "length" for switch statement
if (preg_match("/^length/", $requirement)) {
$length_requirements = $requirement;
$requirement = "length";
}
// if the requirement is "range=...", rename requirement to "range" for switch statement
if (preg_match("/^range/", $requirement)) {
$range_requirements = $requirement;
$requirement = "range";
}
// now, validate whatever is required of the field
switch ($requirement) {
case "required":
if (!isset($fields[$field_name]) || $fields[$field_name] == "") {
$errors[] = $error_message;
}
break;
case "digits_only":
if (isset($fields[$field_name]) && preg_match("/\\D/", $fields[$field_name])) {
$errors[] = $error_message;
}
break;
case "letters_only":
if (isset($fields[$field_name]) && preg_match("/[^a-zA-Z]/", $fields[$field_name])) {
$errors[] = $error_message;
}
break;
// doesn't fail if field is empty
// doesn't fail if field is empty
case "valid_email":
if (!LoginUtils::IsEmailValid($fields[$field_name])) {
$errors[] = $error_message;
}
break;
case "length":
$comparison_rule = "";
$rule_string = "";
if (preg_match("/length=/", $length_requirements)) {
$comparison_rule = "equal";
$rule_string = preg_replace("/length=/", "", $length_requirements);
} else {
if (preg_match("/length>=/", $length_requirements)) {
$comparison_rule = "greater_than_or_equal";
$rule_string = preg_replace("/length>=/", "", $length_requirements);
} else {
if (preg_match("/length<=/", $length_requirements)) {
$comparison_rule = "less_than_or_equal";
$rule_string = preg_replace("/length<=/", "", $length_requirements);
} else {
if (preg_match("/length>/", $length_requirements)) {
$comparison_rule = "greater_than";
$rule_string = preg_replace("/length>/", "", $length_requirements);
} else {
if (preg_match("/length</", $length_requirements)) {
$comparison_rule = "less_than";
$rule_string = preg_replace("/length</", "", $length_requirements);
}
}
}
}
}
switch ($comparison_rule) {
case "greater_than_or_equal":
if (!(strlen($fields[$field_name]) >= $rule_string)) {
$errors[] = $error_message;
}
break;
case "less_than_or_equal":
if (!(strlen($fields[$field_name]) <= $rule_string)) {
$errors[] = $error_message;
}
break;
case "greater_than":
if (!(strlen($fields[$field_name]) > $rule_string)) {
$errors[] = $error_message;
}
break;
case "less_than":
if (!(strlen($fields[$field_name]) < $rule_string)) {
$errors[] = $error_message;
}
break;
case "equal":
// if the user supplied two length fields, make sure the field is within that range
if (preg_match("/-/", $rule_string)) {
list($start, $end) = explode("-", $rule_string);
if (strlen($fields[$field_name]) < $start || strlen($fields[$field_name]) > $end) {
$errors[] = $error_message;
}
} else {
if (strlen($fields[$field_name]) != $rule_string) {
$errors[] = $error_message;
}
}
break;
}
break;
case "range":
$comparison_rule = "";
$rule_string = "";
if (preg_match("/range=/", $range_requirements)) {
$comparison_rule = "equal";
$rule_string = preg_replace("/range=/", "", $range_requirements);
} else {
if (preg_match("/range>=/", $range_requirements)) {
$comparison_rule = "greater_than_or_equal";
$rule_string = preg_replace("/range>=/", "", $range_requirements);
} else {
if (preg_match("/range<=/", $range_requirements)) {
$comparison_rule = "less_than_or_equal";
$rule_string = preg_replace("/range<=/", "", $range_requirements);
} else {
if (preg_match("/range>/", $range_requirements)) {
$comparison_rule = "greater_than";
$rule_string = preg_replace("/range>/", "", $range_requirements);
} else {
if (preg_match("/range</", $range_requirements)) {
$comparison_rule = "less_than";
$rule_string = preg_replace("/range</", "", $range_requirements);
}
}
}
}
}
switch ($comparison_rule) {
case "greater_than":
if (!($fields[$field_name] > $rule_string)) {
$errors[] = $error_message;
}
break;
case "less_than":
if (!($fields[$field_name] < $rule_string)) {
$errors[] = $error_message;
}
break;
case "greater_than_or_equal":
if (!($fields[$field_name] >= $rule_string)) {
$errors[] = $error_message;
}
break;
case "less_than_or_equal":
if (!($fields[$field_name] <= $rule_string)) {
$errors[] = $error_message;
}
break;
case "equal":
list($start, $end) = explode("-", $rule_string);
if ($fields[$field_name] < $start || $fields[$field_name] > $end) {
$errors[] = $error_message;
}
break;
}
break;
case "same_as":
if ($fields[$field_name] != $fields[$field_name2]) {
$errors[] = $error_message;
}
break;
case "valid_date":
// this is written for future extensibility of isValidDate function to allow
// checking for dates BEFORE today, AFTER today, IS today and ANY day.
$is_later_date = false;
if ($date_flag == "later_date") {
$is_later_date = true;
} else {
if ($date_flag == "any_date") {
$is_later_date = false;
}
}
if (!is_valid_date($fields[$field_name], $fields[$field_name2], $fields[$field_name3], $is_later_date)) {
$errors[] = $error_message;
}
break;
case "is_alpha":
if (preg_match('/[^A-Za-z0-9]/', $fields[$field_name])) {
$errors[] = $error_message;
}
break;
case "custom_alpha":
$chars = array();
$chars["L"] = "[A-Z]";
$chars["V"] = "[AEIOU]";
$chars["l"] = "[a-z]";
$chars["v"] = "[aeiou]";
$chars["D"] = "[a-zA-Z]";
$chars["F"] = "[aeiouAEIOU]";
$chars["C"] = "[BCDFGHJKLMNPQRSTVWXYZ]";
$chars["x"] = "[0-9]";
$chars["c"] = "[bcdfghjklmnpqrstvwxyz]";
$chars["X"] = "[1-9]";
$chars["E"] = "[bcdfghjklmnpqrstvwxyzBCDFGHJKLMNPQRSTVWXYZ]";
$reg_exp_str = "";
for ($j = 0; $j < strlen($field_name2); $j++) {
if (array_key_exists($field_name2[$j], $chars)) {
$reg_exp_str .= $chars[$field_name2[$j]];
} else {
$reg_exp_str .= $field_name2[$j];
}
}
if (!empty($fields[$field_name]) && !preg_match("/{$reg_exp_str}/", $fields[$field_name])) {
$errors[] = $error_message;
}
break;
case "reg_exp":
$reg_exp_str = $field_name2;
// rather crumby, but...
if (count($row) == 5) {
$reg_exp = "/" . $reg_exp_str . "/" . $row[3];
} else {
$reg_exp = "/" . $reg_exp_str . "/";
}
if (!empty($fields[$field_name]) && !preg_match($reg_exp, $fields[$field_name])) {
$errors[] = $error_message;
}
break;
default:
die("Unknown requirement flag in validate_fields(): {$requirement}");
break;
}
}
return $errors;
}