public void build(HttpResponse response) {
String origin = request.getHttpHeaders().getRequestHeaders().getFirst(ORIGIN_HEADER);
if (origin == null) {
logger.debug("No origin returning");
return;
}
if (!preflight
&& (allowedOrigins == null
|| (!allowedOrigins.contains(origin)
&& !allowedOrigins.contains(ACCESS_CONTROL_ALLOW_ORIGIN_WILDCARD)))) {
logger.debug("!preflight and no origin");
return;
}
logger.debug("build CORS headers and return");
response.getOutputHeaders().add(ACCESS_CONTROL_ALLOW_ORIGIN, origin);
if (preflight) {
if (allowedMethods != null) {
response
.getOutputHeaders()
.add(ACCESS_CONTROL_ALLOW_METHODS, CollectionUtil.join(allowedMethods));
} else {
response.getOutputHeaders().add(ACCESS_CONTROL_ALLOW_METHODS, DEFAULT_ALLOW_METHODS);
}
}
if (!preflight && exposedHeaders != null) {
response
.getOutputHeaders()
.add(ACCESS_CONTROL_EXPOSE_HEADERS, CollectionUtil.join(exposedHeaders));
}
response.getOutputHeaders().add(ACCESS_CONTROL_ALLOW_CREDENTIALS, Boolean.toString(auth));
if (preflight) {
if (auth) {
response
.getOutputHeaders()
.add(
ACCESS_CONTROL_ALLOW_HEADERS,
String.format("%s, %s", DEFAULT_ALLOW_HEADERS, AUTHORIZATION_HEADER));
} else {
response.getOutputHeaders().add(ACCESS_CONTROL_ALLOW_HEADERS, DEFAULT_ALLOW_HEADERS);
}
}
if (preflight) {
response.getOutputHeaders().add(ACCESS_CONTROL_MAX_AGE, DEFAULT_MAX_AGE);
}
}
public Response build() {
String origin = request.getHttpHeaders().getRequestHeaders().getFirst(ORIGIN_HEADER);
if (origin == null) {
return builder.build();
}
if (!preflight
&& (allowedOrigins == null
|| (!allowedOrigins.contains(origin)
&& !allowedOrigins.contains(ACCESS_CONTROL_ALLOW_ORIGIN_WILDCARD)))) {
return builder.build();
}
builder.header(ACCESS_CONTROL_ALLOW_ORIGIN, origin);
if (preflight) {
if (allowedMethods != null) {
builder.header(ACCESS_CONTROL_ALLOW_METHODS, CollectionUtil.join(allowedMethods));
} else {
builder.header(ACCESS_CONTROL_ALLOW_METHODS, DEFAULT_ALLOW_METHODS);
}
}
if (!preflight && exposedHeaders != null) {
builder.header(ACCESS_CONTROL_EXPOSE_HEADERS, CollectionUtil.join(exposedHeaders));
}
builder.header(ACCESS_CONTROL_ALLOW_CREDENTIALS, Boolean.toString(auth));
if (preflight) {
if (auth) {
builder.header(
ACCESS_CONTROL_ALLOW_HEADERS,
String.format("%s, %s", DEFAULT_ALLOW_HEADERS, AUTHORIZATION_HEADER));
} else {
builder.header(ACCESS_CONTROL_ALLOW_HEADERS, DEFAULT_ALLOW_HEADERS);
}
}
if (preflight) {
builder.header(ACCESS_CONTROL_MAX_AGE, DEFAULT_MAX_AGE);
}
return builder.build();
}