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QueryJobManager to use IdentitytManager from AuthenticationUtil & upg…
…rade to uws-server lib (1.2.21)
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152 changes: 152 additions & 0 deletions
152
src/main/java/org/opencadc/tap/impl/AuthenticatorImpl.java
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package org.opencadc.tap.impl; | ||
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import java.io.IOException; | ||
import java.net.http.HttpClient; | ||
import java.net.http.HttpResponse; | ||
import java.net.http.HttpResponse.BodyHandlers; | ||
import java.net.http.HttpRequest; | ||
import java.net.URI; | ||
import java.security.AccessControlException; | ||
import java.security.Principal; | ||
import java.util.ArrayList; | ||
import java.util.List; | ||
import java.util.Map; | ||
import java.util.UUID; | ||
import java.util.concurrent.ConcurrentHashMap; | ||
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import javax.security.auth.Subject; | ||
import javax.security.auth.x500.X500Principal; | ||
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import ca.nrc.cadc.auth.Authenticator; | ||
import ca.nrc.cadc.auth.AuthMethod; | ||
import ca.nrc.cadc.auth.AuthorizationTokenPrincipal; | ||
import ca.nrc.cadc.auth.HttpPrincipal; | ||
import ca.nrc.cadc.auth.NumericPrincipal; | ||
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import com.google.gson.Gson; | ||
import com.google.gson.JsonObject; | ||
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import org.apache.log4j.Logger; | ||
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/** | ||
* @deprecated This class is deprecated and will be removed in future releases. | ||
* The TAP Service now uses IdentityManager for authentication, available in the opencadc library | ||
* | ||
* @author cbanek | ||
*/ | ||
@Deprecated | ||
public class AuthenticatorImpl implements Authenticator | ||
{ | ||
private static final Logger log = Logger.getLogger(AuthenticatorImpl.class); | ||
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// Size of the token cache is read from the maxTokenCache property, with | ||
// a default of 1000 tokens cached. | ||
private static final int maxTokenCache = Integer.getInteger("maxTokenCache", 1000); | ||
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private static final String gafaelfawr_url = System.getProperty("gafaelfawr_url"); | ||
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private static final HttpClient client = HttpClient.newHttpClient(); | ||
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private static final ConcurrentHashMap<String,TokenInfo> tokenCache = new ConcurrentHashMap<>(); | ||
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private final class TokenInfo | ||
{ | ||
public final String username; | ||
public final int uid; | ||
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public TokenInfo(String username, int uid) | ||
{ | ||
this.username = username; | ||
this.uid = uid; | ||
} | ||
} | ||
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public AuthenticatorImpl() | ||
{ | ||
} | ||
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public Subject validate(Subject subject) throws AccessControlException { | ||
log.debug("Subject to augment starts as: " + subject); | ||
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// Check if the cache is too big, and if so, clear it out. | ||
if (tokenCache.size() > maxTokenCache) { | ||
tokenCache.clear(); | ||
} | ||
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List<Principal> addedPrincipals = new ArrayList<Principal>(); | ||
AuthorizationTokenPrincipal tokenPrincipal = null; | ||
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for (Principal principal : subject.getPrincipals()) { | ||
if (principal instanceof AuthorizationTokenPrincipal) { | ||
tokenPrincipal = (AuthorizationTokenPrincipal) principal; | ||
TokenInfo tokenInfo = null; | ||
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for (int i = 1; i < 5 && tokenInfo == null; i++) { | ||
try { | ||
tokenInfo = getTokenInfo(tokenPrincipal.getHeaderValue()); | ||
} catch (IOException|InterruptedException e) { | ||
log.warn("Exception thrown while getting info from Gafaelfawr"); | ||
log.warn(e); | ||
} | ||
} | ||
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if (tokenInfo != null) { | ||
X500Principal xp = new X500Principal("CN=" + tokenInfo.username); | ||
addedPrincipals.add(xp); | ||
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HttpPrincipal hp = new HttpPrincipal(tokenInfo.username); | ||
addedPrincipals.add(hp); | ||
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UUID uuid = new UUID(0L, (long) tokenInfo.uid); | ||
NumericPrincipal np = new NumericPrincipal(uuid); | ||
addedPrincipals.add(np); | ||
} | ||
else { | ||
log.error("Gave up retrying user-info requests to Gafaelfawr"); | ||
} | ||
} | ||
} | ||
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if (tokenPrincipal != null) { | ||
subject.getPrincipals().remove(tokenPrincipal); | ||
} | ||
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subject.getPrincipals().addAll(addedPrincipals); | ||
subject.getPublicCredentials().add(AuthMethod.TOKEN); | ||
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log.debug("Augmented subject is " + subject); | ||
return subject; | ||
} | ||
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// Here we could check the token again, but gafaelfawr should be | ||
// doing that for us already by the time it gets to us. So for | ||
// this layer, we just let this go through. | ||
public Subject augment(Subject subject) { | ||
return subject; | ||
} | ||
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private TokenInfo getTokenInfo(String token) throws IOException, InterruptedException { | ||
// If the request has gotten this far, the token has already | ||
// been checked upstream, so we know it's valid, we just need | ||
// to determine the uid and the username. | ||
if (!tokenCache.containsKey(token)) { | ||
HttpRequest request = HttpRequest.newBuilder(URI.create(gafaelfawr_url)) | ||
.header("Accept", "application/json") | ||
.header("Authorization", token) | ||
.build(); | ||
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HttpResponse<String> response = client.send(request, BodyHandlers.ofString()); | ||
String body = response.body(); | ||
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Gson gson = new Gson(); | ||
JsonObject authData = gson.fromJson(body, JsonObject.class); | ||
String username = authData.getAsJsonPrimitive("username").getAsString(); | ||
int uid = authData.getAsJsonPrimitive("uid").getAsInt(); | ||
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// Insert the info into the cache here since we retrieved it. | ||
tokenCache.put(token, new TokenInfo(username, uid)); | ||
} | ||
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return tokenCache.get(token); | ||
} | ||
} |
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