OAthe2 Login use OkHttpClient and OAuth2RestTemplate

http://samchu.logdown.com/posts/1437422-oathe2-login-use-okhttpclient-and-oauth2resttemplate?utm_source=tuicool&utm_medium=referral

如果要取得 OAuth 授權的話，可以直接使用 OkHttpClient 或是 OAuth2RestTemplate 來實作

在依賴中增加 OkHttpClient

build.gradle

dependencies {
    compile 'com.squareup.okhttp3:okhttp:3.6.0'
}

實際登入的程式

public void Okhttp() throws IOException {
    OkHttpClient client = new OkHttpClient();
    String credential = Credentials.basic("clientkpi", "123456");
    FormBody body = new FormBody.Builder()
            .add("username", "sam.chu=")
            .add("password", "12345678")
            .add("grant_type", "password")
            .add("scope", "account role").build();
    Request request = new Request.Builder()
            .header("Authorization", credential)
            .url("http://localhost:8081/oauth/token")
            .post(body)
            .build();
    try (Response response = client.newCall(request).execute()) {
        if (!response.isSuccessful()) {
            throw new IOException("Unexpected code " + response);
        }
        ObjectMapper mapper = new ObjectMapper();
        OauthToken oauthToken = mapper.readValue(response.body().string(), OauthToken.class);
        System.out.println(oauthToken);
    }
}

或是你可以選 org.springframework.security.oauth:spring-security-oauth2 提供的 OAuth2RestTemplate

在依賴中增加 org.springframework.security.oauth:spring-security-oauth2

build.gradle

dependencies {
    compile('org.springframework.boot:spring-boot-starter-security')
    compile 'org.springframework.security.oauth:spring-security-oauth2:2.0.12.RELEASE'
}

public void testOAuth() {
    AccessTokenRequest atr = new DefaultAccessTokenRequest();
    OAuth2RestTemplate oAuth2RestTemplate = new OAuth2RestTemplate(resource(), new DefaultOAuth2ClientContext(atr));
    try {
        System.out.println(oAuth2RestTemplate.getAccessToken());
        System.out.println(oAuth2RestTemplate.getAccessToken().getRefreshToken());
    } catch (OAuth2AccessDeniedException e) {
        System.out.println("登入失敗" + e.getHttpErrorCode()); // 403

        System.out.println("登入失敗" + e.getOAuth2ErrorCode()); // access_denied

        System.out.println("登入失敗" + e.getMessage()); //Access token denied.

        System.out.println("登入失敗" + e.getLocalizedMessage()); // Access token denied.

        System.out.println("登入失敗" + e.getSummary()); // error="access_denied", error_description="Access token denied."

    }
}

protected OAuth2ProtectedResourceDetails resource() {
    ResourceOwnerPasswordResourceDetails resource = new ResourceOwnerPasswordResourceDetails();
    List scopes = new ArrayList<String>(2);
    scopes.add("account");
    scopes.add("role");
    resource.setAccessTokenUri("http://localhost:8081/oauth/token");
    resource.setClientId("clientkpi");
    resource.setClientSecret("123456");
    resource.setGrantType("password");
    resource.setScope(scopes);
    resource.setUsername("sam.chu=");
    resource.setPassword("12345678");
    return resource;
}

不過基於 Spring Boot 的自動配置會亂數產生帳密 來做 Http basic 認證，剛開發的時候會有點煩

可以在 SpringBootApplication 暫時把它關閉

順便把 EnableOAuth2Client 加上

@EnableOAuth2Client
@SpringBootApplication(exclude = {SecurityAutoConfiguration.class})
public class KpiApplication {

    public static void main(String[] args) {
        SpringApplication.run(KpiApplication.class, args);
    }
}

其他兩個範例是使用 RestTemplate 來新增跟取得的範例

public void restPost() throws IOException {
        String url = "http://localhost:8082/api/v1/role";
        RestTemplate restTemplate = new RestTemplate();
        HttpHeaders headers = new HttpHeaders();
        headers.setContentType(MediaType.APPLICATION_JSON_UTF8);
        headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON_UTF8));
        headers.add("Authorization", String.format("%s %s", "bearer", "eyJhbGciOiJIUzI1.NiIsInR5cCI6I.kpXVCJ9"));
        RoleDto roleDto = new RoleDto();
        roleDto.setCode("ROLE_GINTAMA");
        roleDto.setLabel("銀魂銀魂銀魂");
        HttpEntity<RoleDto> entity = new HttpEntity<RoleDto>(roleDto, headers);
        ResponseEntity<String> response = restTemplate.exchange(url, HttpMethod.POST, entity, String.class, new HashMap<String, String>());
        if (response.getStatusCode().equals(HttpStatus.CREATED)) {
            System.out.println(response.getBody());
        }
    }

取得資源

public void restGet() throws IOException {
    String url = "http://localhost:8082/api/v1/role";
    RestTemplate restTemplate = new RestTemplate();
    HttpHeaders headers = new HttpHeaders();
    headers.setAccept(Arrays.asList(MediaType.APPLICATION_JSON_UTF8));
    headers.add("Authorization", String.format("%s %s", "bearer", "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJhdWQiOlsia3BpIiwiYWNjb3VudCJdLCJ1c2VyX25hbWUiOiJzYW0uY2h1PSIsInNjb3BlIjpbImFjY291bnQiLCJyb2xlIl0sImV4cCI6MTQ4NzU3NDUzNywiYXV0aG9yaXRpZXMiOlsiUk9MRV9VU0VSIl0sImp0aSI6ImNiMzc0OGFmLTc2NGUtNDNiNy1iNTVjLTU4ZjQzZWQwOTU0MCIsImNsaWVudF9pZCI6ImNsaWVudGtwaSJ9.9Wwk5-GrJ_xdVOcOexoDhIXEznHqm3ssBfob0FeSFgA"));
    HttpEntity<String> entity = new HttpEntity<String>(headers);
    ResponseEntity<String> response = restTemplate.exchange(url, HttpMethod.GET, entity, String.class);
    if (response.getStatusCode().equals(HttpStatus.OK)) {
        System.out.println(response.getBody());
    }
}

← use JWT OAuth2 and spring-security Create AuthorizationServer

http://samchu.logdown.com/posts/1433379

http://www.tuicool.com/articles/eeQvy2j