Code Duplication    Length = 3-3 lines in 2 locations

class.jetpack-signature.php 2 locations

@@ 144-146 (lines=3) @@
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		}
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		foreach ( $required_parameters as $required ) {
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			if ( !is_scalar( $$required ) ) {
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				return new Jetpack_Error( 'invalid_signature', sprintf( 'The required "%s" parameter is malformed.', str_replace( '_', '-', $required ) ) );
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			}
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			if ( !strlen( $$required ) ) {
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				return new Jetpack_Error( 'invalid_signature', sprintf( 'The required "%s" parameter is missing.', str_replace( '_', '-', $required ) ) );
@@ 148-150 (lines=3) @@
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				return new Jetpack_Error( 'invalid_signature', sprintf( 'The required "%s" parameter is malformed.', str_replace( '_', '-', $required ) ) );
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			}
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			if ( !strlen( $$required ) ) {
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				return new Jetpack_Error( 'invalid_signature', sprintf( 'The required "%s" parameter is missing.', str_replace( '_', '-', $required ) ) );
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			}
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		}
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		if ( empty( $body ) ) {