77 lines
3.3 KiB
Java
77 lines
3.3 KiB
Java
package eu.eudat.logic.security.customproviders.B2Access;
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import eu.eudat.logic.security.validators.b2access.helpers.B2AccessResponseToken;
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import org.apache.commons.codec.binary.Base64;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.core.env.Environment;
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import org.springframework.http.HttpEntity;
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import org.springframework.http.HttpHeaders;
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import org.springframework.http.HttpMethod;
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import org.springframework.http.MediaType;
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import org.springframework.stereotype.Component;
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import org.springframework.util.LinkedMultiValueMap;
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import org.springframework.util.MultiValueMap;
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import org.springframework.web.client.RestTemplate;
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import java.nio.charset.Charset;
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import java.util.Map;
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@Component("b2AccessCustomProvider")
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public class B2AccessCustomProviderImpl implements B2AccessCustomProvider {
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private Environment environment;
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@Autowired
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public B2AccessCustomProviderImpl(Environment environment) {
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this.environment = environment;
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}
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public B2AccessUser getUser(String accessToken) {
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RestTemplate restTemplate = new RestTemplate();
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HttpHeaders headers = this.createBearerAuthHeaders(accessToken);
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HttpEntity<String> entity = new HttpEntity<>(headers);
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Map<String, Object> values = restTemplate.exchange(this.environment.getProperty("b2access.externallogin.user_info_url"), HttpMethod.GET, entity, Map.class).getBody();
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B2AccessUser b2AccessUser = new B2AccessUser();
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b2AccessUser.setEmail((String)values.get("email"));
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b2AccessUser.setId((String)values.get("urn:oid:2.5.4.49"));
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b2AccessUser.setName((String)values.get("name"));
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return b2AccessUser;
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}
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@Override
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public B2AccessResponseToken getAccessToken(String code, String redirectUri, String clientId, String clientSecret) {
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RestTemplate template = new RestTemplate();
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HttpHeaders headers = this.createBasicAuthHeaders(clientId, clientSecret);
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headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
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MultiValueMap<String, String> map = new LinkedMultiValueMap<String, String>();
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map.add("code", code);
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map.add("grant_type", "authorization_code");
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map.add("redirect_uri", redirectUri);
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HttpEntity<MultiValueMap<String, String>> request = new HttpEntity<MultiValueMap<String, String>>(map, headers);
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Map<String, Object> values = template.postForObject(this.environment.getProperty("b2access.externallogin.access_token_url"), request, Map.class);
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B2AccessResponseToken b2AccessResponseToken = new B2AccessResponseToken();
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b2AccessResponseToken.setAccessToken((String) values.get("access_token"));
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return b2AccessResponseToken;
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}
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private HttpHeaders createBasicAuthHeaders(String username, String password) {
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return new HttpHeaders() {{
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String auth = username + ":" + password;
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byte[] encodedAuth = Base64.encodeBase64(
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auth.getBytes(Charset.forName("US-ASCII")));
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String authHeader = "Basic " + new String(encodedAuth);
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set("Authorization", authHeader);
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}};
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}
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private HttpHeaders createBearerAuthHeaders(String accessToken) {
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return new HttpHeaders() {{
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String authHeader = "Bearer " + new String(accessToken);
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set("Authorization", authHeader);
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}};
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}
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}
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