arturobernalg commented on code in PR #456:
URL:
https://github.com/apache/httpcomponents-client/pull/456#discussion_r1233374549
##########
httpclient5-cache/src/main/java/org/apache/hc/client5/http/impl/cache/CacheValidityPolicy.java:
##########
@@ -206,28 +206,51 @@ protected TimeValue getApparentAge(final HttpCacheEntry
entry) {
return TimeValue.ofSeconds(diff.getSeconds());
}
+ /**
+ * Extracts and processes the Age value from an HttpCacheEntry. The method
goes through each digit of the Age value,
+ * performing direct arithmetic operations to calculate the total age in
delta-seconds. If the Age value cannot be parsed
+ * into a number or if it exceeds Integer.MAX_VALUE, the method returns
the value of MAX_AGE in seconds.
+ *
+ * @param entry The HttpCacheEntry from which to extract the Age value.
+ * @return The Age value in delta-seconds, or the MAX_AGE in seconds if
the Age value is invalid or exceeds Integer.MAX_VALUE.
+ */
protected long getAgeValue(final HttpCacheEntry entry) {
- // This is a header value, we leave as-is
- long ageValue = 0;
- for (final Header hdr : entry.getHeaders(HttpHeaders.AGE)) {
- long hdrAge;
+ final Header age = entry.getFirstHeader(HttpHeaders.AGE);
+ if (age != null) {
try {
- hdrAge = Long.parseLong(hdr.getValue());
- if (hdrAge < 0) {
- hdrAge = MAX_AGE.toSeconds();
+ final String ageValue = age.getValue();
+ long result = 0;
+ for (int i = 0; i < ageValue.length(); i++) {
+ final int digit = Character.digit(ageValue.charAt(i), 10);
+ if (digit < 0) {
+ if (LOG.isWarnEnabled()) {
+ LOG.warn("Invalid Age header: {}", ageValue);
+ }
+ return 0;
+ }
+ result = result * 10 + digit;
+ if (result > Integer.MAX_VALUE) {
+ if (LOG.isWarnEnabled()) {
Review Comment:
changed.
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