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Add some missing validation
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@ -1,5 +1,18 @@
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<?php
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// Initialize filter session variables
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if (!isset($_SESSION['FilterCallSign'])) {
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$_SESSION['FilterCallSign'] = null;
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}
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if (!isset($_SESSION['FilterProtocol'])) {
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$_SESSION['FilterProtocol'] = null;
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}
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if (!isset($_SESSION['FilterModule'])) {
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$_SESSION['FilterModule'] = null;
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}
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// Validate filter inputs
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if (isset($_SESSION['FilterCallSign']) && $_SESSION['FilterCallSign'] !== null) {
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$_SESSION['FilterCallSign'] = preg_replace('/[^A-Z0-9\*\-\/\s]/i', '', $_SESSION['FilterCallSign']);
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