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Minor ClientCookieDecoder improvements

Browse Source 
Motivation:

* Path attribute should be null, not empty String, if it's passed as "Path=".
* Only extract attribute value when the name is recognized.
* Only extract Expires attribute value String if MaxAge is undefined as it has precedence.

Modification:

Modify ClientCookieDecoder.
Add "testIgnoreEmptyPath" test in ClientCookieDecoderTest.

Result:

More idyomatic Path behavior (like Domain).
Minor performance improvement in some corner cases.
This commit is contained in:
Stephane Landelle 2015-05-11 13:11:39 +02:00 committed by Norman Maurer
parent 507b92e64c
commit 25b90927f4
2 changed files with 46 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

78
codec-http/src/main/java/io/netty/handler/codec/http/cookie/ClientCookieDecoder.java
View File

@ -138,11 +138,10 @@ public final class ClientCookieDecoder extends CookieDecoder {
return null;
}
cookieBuilder = new CookieBuilder(cookie);
cookieBuilder = new CookieBuilder(cookie, header);
} else {
// cookie attribute
String attrValue = valueBegin == -1 ? null : header.substring(valueBegin, valueEnd);
cookieBuilder.appendAttribute(header, nameBegin, nameEnd, attrValue);
cookieBuilder.appendAttribute(nameBegin, nameEnd, valueBegin, valueEnd);
}
}
return cookieBuilder.cookie();
@ -150,27 +149,33 @@ public final class ClientCookieDecoder extends CookieDecoder {
private static class CookieBuilder {
private final String header;
private final DefaultCookie cookie;
private String domain;
private String path;
private long maxAge = Long.MIN_VALUE;
private String expires;
private int expiresStart;
private int expiresEnd;
private boolean secure;
private boolean httpOnly;
public CookieBuilder(DefaultCookie cookie) {
public CookieBuilder(DefaultCookie cookie, String header) {
this.cookie = cookie;
this.header = header;
}
private long mergeMaxAgeAndExpire(long maxAge, String expires) {
private long mergeMaxAgeAndExpires() {
// max age has precedence over expires
if (maxAge != Long.MIN_VALUE) {
return maxAge;
} else if (expires != null) {
Date expiresDate = HttpHeaderDateFormat.get().parse(expires, new ParsePosition(0));
if (expiresDate != null) {
long maxAgeMillis = expiresDate.getTime() - System.currentTimeMillis();
return maxAgeMillis / 1000 + (maxAgeMillis % 1000 != 0 ? 1 : 0);
} else {
String expires = computeValue(expiresStart, expiresEnd);
if (expires != null) {
Date expiresDate = HttpHeaderDateFormat.get().parse(expires, new ParsePosition(0));
if (expiresDate != null) {
long maxAgeMillis = expiresDate.getTime() - System.currentTimeMillis();
return maxAgeMillis / 1000 + (maxAgeMillis % 1000 != 0 ? 1 : 0);
}
}
}
return Long.MIN_VALUE;
@ -179,7 +184,7 @@ public final class ClientCookieDecoder extends CookieDecoder {
public Cookie cookie() {
cookie.setDomain(domain);
cookie.setPath(path);
cookie.setMaxAge(mergeMaxAgeAndExpire(maxAge, expires));
cookie.setMaxAge(mergeMaxAgeAndExpires());
cookie.setSecure(secure);
cookie.setHttpOnly(httpOnly);
return cookie;
@ -189,53 +194,43 @@ public final class ClientCookieDecoder extends CookieDecoder {
* Parse and store a key-value pair. First one is considered to be the
* cookie name/value. Unknown attribute names are silently discarded.
*
* @param header
* the HTTP header
* @param keyStart
* where the key starts in the header
* @param keyEnd
* where the key ends in the header
* @param value
* the decoded value
* @param valueStart
* where the value starts in the header
* @param valueEnd
* where the value ends in the header
*/
public void appendAttribute(String header, int keyStart, int keyEnd,
String value) {
setCookieAttribute(header, keyStart, keyEnd, value);
}
private void setCookieAttribute(String header, int keyStart,
int keyEnd, String value) {
public void appendAttribute(int keyStart, int keyEnd, int valueStart, int valueEnd) {
int length = keyEnd - keyStart;
if (length == 4) {
parse4(header, keyStart, value);
parse4(keyStart, valueStart, valueEnd);
} else if (length == 6) {
parse6(header, keyStart, value);
parse6(keyStart, valueStart, valueEnd);
} else if (length == 7) {
parse7(header, keyStart, value);
parse7(keyStart, valueStart, valueEnd);
} else if (length == 8) {
parse8(header, keyStart, value);
parse8(keyStart, valueStart, valueEnd);
}
}
private void parse4(String header, int nameStart, String value) {
private void parse4(int nameStart, int valueStart, int valueEnd) {
if (header.regionMatches(true, nameStart, CookieHeaderNames.PATH, 0, 4)) {
path = value;
path = computeValue(valueStart, valueEnd);
}
}
private void parse6(String header, int nameStart, String value) {
private void parse6(int nameStart, int valueStart, int valueEnd) {
if (header.regionMatches(true, nameStart, CookieHeaderNames.DOMAIN, 0, 5)) {
domain = value.length() > 0 ? value.toString() : null;
domain = computeValue(valueStart, valueEnd);
} else if (header.regionMatches(true, nameStart, CookieHeaderNames.SECURE, 0, 5)) {
secure = true;
}
}
private void setExpire(String value) {
expires = value;
}
private void setMaxAge(String value) {
try {
maxAge = Math.max(Long.valueOf(value), 0L);
@ -244,18 +239,23 @@ public final class ClientCookieDecoder extends CookieDecoder {
}
}
private void parse7(String header, int nameStart, String value) {
private void parse7(int nameStart, int valueStart, int valueEnd) {
if (header.regionMatches(true, nameStart, CookieHeaderNames.EXPIRES, 0, 7)) {
setExpire(value);
expiresStart = valueStart;
expiresEnd = valueEnd;
} else if (header.regionMatches(true, nameStart, CookieHeaderNames.MAX_AGE, 0, 7)) {
setMaxAge(value);
setMaxAge(computeValue(valueStart, valueEnd));
}
}
private void parse8(String header, int nameStart, String value) {
private void parse8(int nameStart, int valueStart, int valueEnd) {
if (header.regionMatches(true, nameStart, CookieHeaderNames.HTTPONLY, 0, 8)) {
httpOnly = true;
}
}
private String computeValue(int valueStart, int valueEnd) {
return valueStart == -1 || valueStart == valueEnd ? null : header.substring(valueStart, valueEnd);
}
}
}

7
codec-http/src/test/java/io/netty/handler/codec/http/cookie/ClientCookieDecoderTest.java
View File

@ -277,4 +277,11 @@ public class ClientCookieDecoderTest {
Cookie cookie = ClientCookieDecoder.STRICT.decode(emptyDomain);
assertNull(cookie.domain());
}
@Test
public void testIgnoreEmptyPath() {
String emptyPath = "sessionid=OTY4ZDllNTgtYjU3OC00MWRjLTkzMWMtNGUwNzk4MTY0MTUw;Domain=;Path=";
Cookie cookie = ClientCookieDecoder.STRICT.decode(emptyPath);
assertNull(cookie.path());
}
}