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SEC-506: Fix as suggested by reporter. Split the disgest header string ignoring separating commas which occur between quotes.

This commit is contained in:
Luke Taylor 2007-08-28 00:31:30 +00:00
parent 3f123e1478
commit c8077c5e87
4 changed files with 177 additions and 110 deletions
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10
core/src/main/java/org/acegisecurity/ui/digestauth/DigestProcessingFilter.java
View File

@ -105,7 +105,8 @@ public class DigestProcessingFilter implements Filter, InitializingBean, Message
Assert.notNull(authenticationEntryPoint, "A DigestProcessingFilterEntryPoint is required");
}
public void destroy() {}
public void destroy() {
}
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
@ -128,7 +129,7 @@ public class DigestProcessingFilter implements Filter, InitializingBean, Message
if ((header != null) && header.startsWith("Digest ")) {
String section212response = header.substring(7);
String[] headerEntries = StringUtils.commaDelimitedListToStringArray(section212response);
String[] headerEntries = StringSplitUtils.splitIgnoringQuotes(section212response, ',');
Map headerMap = StringSplitUtils.splitEachArrayElementAndCreateMap(headerEntries, "=", "\"");
String username = (String) headerMap.get("username");
@ -361,9 +362,7 @@ public class DigestProcessingFilter implements Filter, InitializingBean, Message
* @param nonce the nonce supplied by the server
* @param nc the "nonce-count" as defined in RFC 2617.
* @param cnonce opaque string supplied by the client when qop is set.
*
* @return the MD5 of the digest authentication response, encoded in hex
*
* @throws IllegalArgumentException if the supplied qop value is unsupported.
*/
public static String generateDigest(boolean passwordAlreadyEncoded, String username, String realm, String password,
@ -408,7 +407,8 @@ public class DigestProcessingFilter implements Filter, InitializingBean, Message
return userDetailsService;
}
public void init(FilterConfig ignored) throws ServletException {}
public void init(FilterConfig ignored) throws ServletException {
}
public void setAuthenticationDetailsSource(AuthenticationDetailsSource authenticationDetailsSource) {
Assert.notNull(authenticationDetailsSource, "AuthenticationDetailsSource required");

62
core/src/main/java/org/acegisecurity/util/StringSplitUtils.java
View File

@ -20,6 +20,8 @@ import org.springframework.util.StringUtils;
import java.util.HashMap;
import java.util.Map;
import java.util.ArrayList;
import java.util.List;
/**
@ -29,6 +31,9 @@ import java.util.Map;
* @version $Id$
*/
public final class StringSplitUtils {
//~ Static fields/initializers =====================================================================================
private static final String[] EMPTY_STRING_ARRAY = new String[0];
//~ Constructors ===================================================================================================
private StringSplitUtils() {
@ -42,10 +47,8 @@ public final class StringSplitUtils {
*
* @param toSplit the string to split
* @param delimiter to split the string up with
*
* @return a two element array with index 0 being before the delimiter, and index 1 being after the delimiter
* (neither element includes the delimiter)
*
* @throws IllegalArgumentException if an argument was invalid
*/
public static String[] split(String toSplit, String delimiter) {
@ -78,7 +81,6 @@ public final class StringSplitUtils {
* @param delimiter to split each element using (typically the equals symbol)
* @param removeCharacters one or more characters to remove from each element prior to attempting the split
* operation (typically the quotation mark symbol) or <code>null</code> if no removal should occur
*
* @return a <code>Map</code> representing the array contents, or <code>null</code> if the array to process was
* null or empty
*/
@ -135,4 +137,58 @@ public final class StringSplitUtils {
return str.substring(pos + separator.length());
}
/**
* Splits a given string on the given separator character, skips the contents of quoted substrings
* when looking for separators.
* Introduced for use in DigestProcessingFilter (see SEC-506).
* <p/>
* This was copied and modified from commons-lang StringUtils
*/
public static String[] splitIgnoringQuotes(String str, char separatorChar) {
if (str == null) {
return null;
}
int len = str.length();
if (len == 0) {
return EMPTY_STRING_ARRAY;
}
List list = new ArrayList();
int i = 0;
int start = 0;
boolean match = false;
while (i < len) {
if (str.charAt(i) == '"') {
i++;
while (i < len) {
if (str.charAt(i) == '"') {
i++;
break;
}
i++;
}
match = true;
continue;
}
if (str.charAt(i) == separatorChar) {
if (match) {
list.add(str.substring(start, i));
match = false;
}
start = ++i;
continue;
}
match = true;
i++;
}
if (match) {
list.add(str.substring(start, i));
}
return (String[]) list.toArray(new String[list.size()]);
}
}

17
core/src/test/java/org/acegisecurity/ui/digestauth/DigestProcessingFilterTests.java
View File

@ -62,14 +62,16 @@ public class DigestProcessingFilterTests extends MockObjectTestCase {
private static final String NC = "00000002";
private static final String CNONCE = "c822c727a648aba7";
private static final String REALM = "The Correct Realm Name";
private static final String REALM = "The Actual, Correct Realm Name";
private static final String KEY = "acegi";
private static final String QOP = "auth";
private static final String USERNAME = "marissa";
private static final String USERNAME = "marissa,ok";
private static final String PASSWORD = "koala";
private static final String REQUEST_URI = "/some_file.html";
/** A standard valid nonce with a validity period of 60 seconds */
/**
* A standard valid nonce with a validity period of 60 seconds
*/
private static final String NONCE = generateNonce(60);
//~ Instance fields ================================================================================================
@ -80,7 +82,8 @@ public class DigestProcessingFilterTests extends MockObjectTestCase {
//~ Constructors ===================================================================================================
public DigestProcessingFilterTests() {}
public DigestProcessingFilterTests() {
}
public DigestProcessingFilterTests(String arg0) {
super(arg0);
@ -118,10 +121,6 @@ public class DigestProcessingFilterTests extends MockObjectTestCase {
return new String(Base64.encodeBase64(nonceValue.getBytes()));
}
public static void main(String[] args) {
junit.textui.TestRunner.run(DigestProcessingFilterTests.class);
}
protected void setUp() throws Exception {
super.setUp();
SecurityContextHolder.clearContext();
@ -129,7 +128,7 @@ public class DigestProcessingFilterTests extends MockObjectTestCase {
// Create User Details Service
InMemoryDaoImpl dao = new InMemoryDaoImpl();
UserMapEditor editor = new UserMapEditor();
editor.setAsText("marissa=koala,ROLE_ONE,ROLE_TWO,enabled\r\n");
editor.setAsText("marissa,ok=koala,ROLE_ONE,ROLE_TWO,enabled\r\n");
dao.setUserMap((UserMap) editor.getValue());
DigestProcessingFilterEntryPoint ep = new DigestProcessingFilterEntryPoint();

12
core/src/test/java/org/acegisecurity/util/StringSplitUtilsTests.java
View File

@ -32,6 +32,7 @@ public class StringSplitUtilsTests extends TestCase {
//~ Constructors ===================================================================================================
// ===========================================================
public StringSplitUtilsTests() {
super();
}
@ -43,6 +44,7 @@ public class StringSplitUtilsTests extends TestCase {
//~ Methods ========================================================================================================
// ================================================================
public static void main(String[] args) {
junit.textui.TestRunner.run(StringSplitUtilsTests.class);
}
@ -137,4 +139,14 @@ public class StringSplitUtilsTests extends TestCase {
// only guarantees to split at FIRST delimiter, not EACH delimiter
assertEquals(2, StringSplitUtils.split("18|marissa|foo|bar", "|").length);
}
public void testAuthorizationHeaderWithCommasIsSplitCorrectly() {
String header = "Digest username=\"hamilton,bob\", realm=\"bobs,ok,realm\", nonce=\"the,nonce\", " +
"uri=\"the,Uri\", response=\"the,response,Digest\", qop=theqop, nc=thenc, cnonce=\"the,cnonce\"";
String[] parts = StringSplitUtils.splitIgnoringQuotes(header, ',');
assertEquals(8, parts.length);
}
}