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Initial checkin of feature to allow faking the Cognito user #16956

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merged 1 commit into from
May 6, 2021
Merged

Initial checkin of feature to allow faking the Cognito user #16956

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46 changes: 46 additions & 0 deletions ...on-lambda-http/runtime/src/main/java/io/quarkus/amazon/lambda/http/LambdaHttpHandler.java
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@
import java.nio.channels.Channels;
import java.nio.channels.WritableByteChannel;
import java.nio.charset.StandardCharsets;
import java.security.Principal;
import java.util.Base64;
import java.util.HashMap;
import java.util.HashSet;
Expand Down Expand Up @@ -168,6 +169,10 @@ private APIGatewayV2HTTPResponse nettyDispatch(InetSocketAddress clientAddress,
quarkusHeaders.setContextObject(Context.class, context);
quarkusHeaders.setContextObject(APIGatewayV2HTTPEvent.class, request);
quarkusHeaders.setContextObject(APIGatewayV2HTTPEvent.RequestContext.class, request.getRequestContext());
final Principal principal = getPrincipal(request);
if (principal != null) {
quarkusHeaders.setContextObject(Principal.class, principal);
}
DefaultHttpRequest nettyRequest = new DefaultHttpRequest(HttpVersion.HTTP_1_1,
HttpMethod.valueOf(request.getRequestContext().getHttp().getMethod()), ofNullable(request.getRawQueryString())
.filter(q -> !q.isEmpty()).map(q -> request.getRawPath() + '?' + q).orElse(request.getRawPath()),
Expand Down Expand Up @@ -234,4 +239,45 @@ private boolean isBinary(String contentType) {
return false;
}

private Principal getPrincipal(APIGatewayV2HTTPEvent request) {
final Map<String, String> systemEnvironment = System.getenv();
final boolean isSamLocal = Boolean.parseBoolean(systemEnvironment.get("AWS_SAM_LOCAL"));
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if (isSamLocal) {
final String forcedUserName = systemEnvironment.get("QUARKUS_AWS_LAMBDA_FORCE_USER_NAME");
if (forcedUserName != null && !forcedUserName.isEmpty()) {
log.info("Forcing local user to " + forcedUserName);
return new Principal() {

@Override
public String getName() {
return forcedUserName;
}

};
}
} else {
final APIGatewayV2HTTPEvent.RequestContext requestContext = request.getRequestContext();
if (requestContext != null) {
final APIGatewayV2HTTPEvent.RequestContext.Authorizer authorizer = requestContext.getAuthorizer();
if (authorizer != null) {
final APIGatewayV2HTTPEvent.RequestContext.Authorizer.JWT jwt = authorizer.getJwt();
if (jwt != null) {
final Map<String, String> claims = jwt.getClaims();
if (claims != null) {
final String jwtUsername = claims.get("cognito:username");
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if (jwtUsername != null && !jwtUsername.isEmpty())
return new Principal() {
@Override
public String getName() {
return jwtUsername;
}
};
}
}
}
}
}
return null;
}

}