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@@ -3,7 +3,7 @@ name: Beacon Network Maven Build | |
| on: | ||
| push: | ||
| branches: | ||
| - dev | ||
| - oidc | ||
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| jobs: | ||
| build: | ||
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235 changes: 235 additions & 0 deletions
235
src/main/java/es/bsc/inb/ga4gh/beacon/network/engine/BeaconNetworkTokenExchanger.java
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| /** | ||
| * ***************************************************************************** | ||
| * Copyright (C) 2024 ELIXIR ES, Spanish National Bioinformatics Institute (INB) | ||
| * and Barcelona Supercomputing Center (BSC) | ||
| * | ||
| * Modifications to the initial code base are copyright of their respective | ||
| * authors, or their employers as appropriate. | ||
| * | ||
| * This library is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU Lesser General Public | ||
| * License as published by the Free Software Foundation; either | ||
| * version 2.1 of the License, or (at your option) any later version. | ||
| * | ||
| * This library is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| * Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public | ||
| * License along with this library; if not, write to the Free Software | ||
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, | ||
| * MA 02110-1301 USA | ||
| * ***************************************************************************** | ||
| */ | ||
|
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| package es.bsc.inb.ga4gh.beacon.network.engine; | ||
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| import es.bsc.inb.ga4gh.beacon.network.config.NetworkConfiguration; | ||
| import es.bsc.inb.ga4gh.beacon.network.model.AccessTokenResponse; | ||
| import es.bsc.inb.ga4gh.beacon.network.model.OauthProtectedResource; | ||
| import es.bsc.inb.ga4gh.beacon.network.model.OidcConfigurationProvider; | ||
| import jakarta.annotation.PostConstruct; | ||
| import jakarta.enterprise.context.ApplicationScoped; | ||
| import jakarta.inject.Inject; | ||
| import jakarta.json.Json; | ||
| import jakarta.json.JsonArray; | ||
| import jakarta.json.JsonObject; | ||
| import jakarta.json.JsonString; | ||
| import jakarta.json.bind.Jsonb; | ||
| import jakarta.ws.rs.core.HttpHeaders; | ||
| import jakarta.ws.rs.core.MediaType; | ||
| import jakarta.ws.rs.core.UriBuilder; | ||
| import java.io.ByteArrayInputStream; | ||
| import java.net.URLEncoder; | ||
| import java.net.http.HttpClient; | ||
| import java.net.http.HttpRequest; | ||
| import java.net.http.HttpRequest.BodyPublishers; | ||
| import java.net.http.HttpRequest.Builder; | ||
| import java.net.http.HttpResponse; | ||
| import java.net.http.HttpResponse.BodyHandlers; | ||
| import java.nio.charset.StandardCharsets; | ||
| import java.time.Duration; | ||
| import java.util.ArrayList; | ||
| import java.util.Base64; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.concurrent.CompletableFuture; | ||
| import java.util.concurrent.ConcurrentHashMap; | ||
| import java.util.concurrent.TimeUnit; | ||
| import java.util.logging.Level; | ||
| import java.util.logging.Logger; | ||
|
|
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| /** | ||
| * @author Dmitry Repchevsky | ||
| */ | ||
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| @ApplicationScoped | ||
| public class BeaconNetworkTokenExchanger { | ||
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| @Inject | ||
| private NetworkConfiguration network_configuration; | ||
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| @Inject | ||
| private Jsonb jsonb; | ||
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| private HttpClient http_client; | ||
| private Map<String, OidcConfigurationProvider> configuration_providers; | ||
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| @PostConstruct | ||
| public void init() { | ||
| http_client = HttpClient.newBuilder() | ||
| .version(HttpClient.Version.HTTP_2) | ||
| .followRedirects(HttpClient.Redirect.ALWAYS) | ||
| .connectTimeout(Duration.ofSeconds(30)) | ||
| .build(); | ||
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| configuration_providers = new ConcurrentHashMap(); | ||
| } | ||
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| public List<String> exchange(String endpoint, List<String> headers) { | ||
| return headers.stream().map(h -> exchangeHeader(endpoint, h)).toList(); | ||
| } | ||
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| private String exchangeHeader(String endpoint, String header) { | ||
| if (header != null && header.startsWith("Bearer ")) { | ||
| final String token = exchangeToken(endpoint, header.substring(7)); | ||
| if (token != null) { | ||
| return "Bearer " + token; | ||
| } | ||
| } | ||
| return header; | ||
| } | ||
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| private String exchangeToken(String endpoint, String token) { | ||
| final OauthProtectedResource resource = network_configuration.getProtectedResources().get(endpoint); | ||
| if (resource != null) { | ||
| final String client_id = resource.getClientId(); | ||
| final List<String> authorization_servers = resource.getAuthorizationServers(); | ||
| if (client_id != null && authorization_servers != null) { | ||
| final String[] token_parts = token.split("\\."); | ||
| if (token_parts.length == 3) { | ||
| final JsonObject payload = decode(token_parts[1]); | ||
| if (payload != null) { | ||
| final String issuer = payload.getString("iss", null); | ||
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| final List<String> audiences; | ||
| final String audience = payload.getString("aud", null); | ||
| if (audience != null) { | ||
| audiences = List.of(audience); | ||
| } else { | ||
| final JsonArray aud = payload.getJsonArray("aud"); | ||
| audiences = aud != null | ||
| ? aud.getValuesAs(JsonString::getString) | ||
| : null; | ||
| } | ||
| if (!authorization_servers.contains(issuer) || | ||
| (audiences != null && !audiences.contains(client_id))) { | ||
| // need exchange | ||
| final List<OidcConfigurationProvider> providers = getWellKnownProviders(authorization_servers); | ||
| if (providers != null) { | ||
| for (OidcConfigurationProvider provider : providers) { | ||
| final Builder builder = createTokenExchangeRequest(provider, client_id, token); | ||
| try { | ||
| final HttpResponse<String> response = http_client.send(builder.build(), | ||
| BodyHandlers.ofString(StandardCharsets.UTF_8)); | ||
| if (response != null && response.statusCode() < 300) { | ||
| final String body = response.body(); | ||
| if (body != null) { | ||
| final AccessTokenResponse atResponse = | ||
| jsonb.fromJson(body, AccessTokenResponse.class); | ||
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| final String accessToken = atResponse.getAccessToken(); | ||
| if (accessToken != null) { | ||
| return accessToken; | ||
| } | ||
| } | ||
| } | ||
| } catch (Exception ex) { | ||
| Logger.getLogger(BeaconNetworkTokenExchanger.class.getName()).log( | ||
| Level.INFO, ex.getMessage()); | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
|
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| private List<OidcConfigurationProvider> getWellKnownProviders(List<String> authorization_servers) { | ||
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| final List<OidcConfigurationProvider> providers = new ArrayList(); | ||
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| final List<CompletableFuture<HttpResponse<String>>> invocations = new ArrayList(); | ||
| for (String authorization_server : authorization_servers) { | ||
| final OidcConfigurationProvider provider = configuration_providers.get(authorization_server); | ||
| if (provider != null) { | ||
| providers.add(provider); | ||
| } else { | ||
| final Builder builder = createWellKnownProviderRequest(authorization_server); | ||
| final CompletableFuture<HttpResponse<String>> future = | ||
| http_client.sendAsync(builder.build(), BodyHandlers.ofString(StandardCharsets.UTF_8)); | ||
| invocations.add(future); | ||
| } | ||
| } | ||
| for (CompletableFuture<HttpResponse<String>> invocation : invocations) { | ||
| try { | ||
| final HttpResponse<String> response = invocation.get(30, TimeUnit.SECONDS); | ||
| if (response != null && response.statusCode() < 300) { | ||
| final String body = response.body(); | ||
| if (body != null) { | ||
| final OidcConfigurationProvider provider = | ||
| jsonb.fromJson(body, OidcConfigurationProvider.class); | ||
| providers.add(provider); | ||
| } | ||
| } | ||
| } catch (Exception ex) { | ||
| Logger.getLogger(BeaconNetworkTokenExchanger.class.getName()).log( | ||
| Level.INFO, ex.getMessage()); | ||
| } | ||
| } | ||
| return providers; | ||
| } | ||
|
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| private Builder createWellKnownProviderRequest(String authorization_server) { | ||
| return HttpRequest.newBuilder(UriBuilder.fromUri(authorization_server) | ||
| .path(".well-known/openid-configuration").build()) | ||
| .header(HttpHeaders.USER_AGENT, "BN/2.0.0") | ||
| .header(HttpHeaders.ACCEPT, MediaType.APPLICATION_JSON); | ||
| } | ||
|
|
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| private Builder createTokenExchangeRequest(OidcConfigurationProvider provider, | ||
| String client_id, String token) { | ||
|
|
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| final StringBuilder data = new StringBuilder(); | ||
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| data.append("client_id").append('=').append(client_id) | ||
| .append("&subject_token").append('=').append(token) | ||
| .append("&grant_type").append('=') | ||
| .append(URLEncoder.encode("urn:ietf:params:oauth:grant-type:token-exchange", StandardCharsets.UTF_8)) | ||
| .append("&subject_token_type").append('=') | ||
| .append(URLEncoder.encode("urn:ietf:params:oauth:token-type:jwt", StandardCharsets.UTF_8)) | ||
| .append("&requested_token_type").append('=') | ||
| .append(URLEncoder.encode("urn:ietf:params:oauth:token-type:access_token", StandardCharsets.UTF_8)); | ||
|
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| return HttpRequest.newBuilder(UriBuilder.fromUri(provider.getTokenEndpoint()) | ||
| .build()) | ||
| .header(HttpHeaders.USER_AGENT, "BN/2.0.0") | ||
| .header(HttpHeaders.CONTENT_TYPE, "application/x-www-form-urlencoded") | ||
| .header(HttpHeaders.ACCEPT, MediaType.APPLICATION_JSON) | ||
| .POST(BodyPublishers.ofString(data.toString(), StandardCharsets.UTF_8)); | ||
| } | ||
|
|
||
| private JsonObject decode(String base64) { | ||
| final Base64.Decoder decoder = Base64.getDecoder(); | ||
| try { | ||
| final byte[] b = decoder.decode(base64); | ||
| return Json.createReader(new ByteArrayInputStream(b)).readObject(); | ||
| } catch (Exception ex) { | ||
| return null; | ||
| } | ||
| } | ||
| } |
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