protected static String extractSPFRecord()

in resolver/src/main/java/org/apache/james/jspf/policies/SPFRetriever.java [121:143]

• 17 lines of code
• 7 McCabe index (conditional complexity)

    protected static String extractSPFRecord(List<String> spfR) throws PermErrorException {
        if (spfR == null || spfR.isEmpty()) return null;
        
        String returnValue = null;
        Iterator<String> all = spfR.iterator();
           
        while (all.hasNext()) {
            // DO NOT trim the result!
            String compare = all.next();

            // We trim the compare value only for the comparison
            if (compare.toLowerCase().trim().startsWith(SPF1Constants.SPF_VERSION1 + " ") || compare.trim().equalsIgnoreCase(SPF1Constants.SPF_VERSION1)) {
                if (returnValue == null) {
                    returnValue = compare;
                } else {
                    throw new PermErrorException(
                            "More than 1 SPF record found");
                }
            }
        }
        
        return returnValue;
    }