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package com.osomapps.pt.token; |
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import static java.time.temporal.ChronoUnit.YEARS; |
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import com.github.scribejava.apis.FacebookApi; |
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import com.github.scribejava.core.builder.ServiceBuilder; |
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import com.github.scribejava.core.model.OAuth2AccessToken; |
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import com.github.scribejava.core.model.OAuthRequest; |
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import com.github.scribejava.core.model.Response; |
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import com.github.scribejava.core.model.Verb; |
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import com.github.scribejava.core.oauth.OAuth20Service; |
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import com.osomapps.pt.UnauthorizedException; |
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import java.io.IOException; |
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import java.time.LocalDate; |
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import java.time.format.DateTimeFormatter; |
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import java.util.Map; |
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import java.util.Optional; |
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import lombok.extern.slf4j.Slf4j; |
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import org.springframework.stereotype.Service; |
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@Service |
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@Slf4j |
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class FacebookService { |
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private static final String PICTURE_URL = |
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"https://graph.facebook.com/me/picture?redirect=false&type=large"; |
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private static final String NAME_URL = |
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"https://graph.facebook.com/me?fields=name,gender,birthday&locale=en_US"; |
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private static final DateTimeFormatter FORMATTER = DateTimeFormatter.ofPattern("MM/dd/yyyy"); |
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private OAuth20Service service; |
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private OAuthRequest requestName; |
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private OAuthRequest requestPicture; |
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FacebookService() { |
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service = |
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new ServiceBuilder() |
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.apiKey("your_api_key") |
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.apiSecret("your_api_secret") |
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.build(FacebookApi.instance()); |
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requestName = new OAuthRequest(Verb.GET, NAME_URL, service); |
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requestPicture = new OAuthRequest(Verb.GET, PICTURE_URL, service); |
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} |
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Optional<FacebookResponse> getProfileNameAndId(String accessTokenString) { |
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try { |
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final OAuth2AccessToken accessToken = new OAuth2AccessToken(accessTokenString); |
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service.signRequest(accessToken, requestName); |
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final Response response = requestName.send(); |
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if (!response.isSuccessful()) { |
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throw new UnauthorizedException( |
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"Error while requesting data from facebook: " + response.getMessage()); |
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} |
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org.springframework.boot.json.JsonParser springParser = |
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org.springframework.boot.json.JsonParserFactory.getJsonParser(); |
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Map<String, Object> object = springParser.parseMap(response.getBody()); |
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LocalDate birthday = LocalDate.parse(String.valueOf(object.get("birthday")), FORMATTER); |
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final FacebookResponse facebookResponse = |
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new FacebookResponse( |
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String.valueOf(object.get("id")), |
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String.valueOf(object.get("name")), |
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String.valueOf(object.get("gender")), |
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birthday, |
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YEARS.between(birthday, LocalDate.now())); |
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return Optional.of(facebookResponse); |
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} catch (IOException ex) { |
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log.error(ex.getMessage(), ex); |
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return Optional.empty(); |
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} |
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} |
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@SuppressWarnings("unchecked") |
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Optional<String> getProfilePictureUrl(String accessTokenString) { |
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try { |
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final OAuth2AccessToken accessToken = new OAuth2AccessToken(accessTokenString); |
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service.signRequest(accessToken, requestPicture); |
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final Response response = requestPicture.send(); |
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if (!response.isSuccessful()) { |
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throw new UnauthorizedException(response.getMessage()); |
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} |
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final String pictureBody = response.getBody(); |
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org.springframework.boot.json.JsonParser springParser = |
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org.springframework.boot.json.JsonParserFactory.getJsonParser(); |
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Map<String, Object> object = springParser.parseMap(pictureBody); |
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return Optional.ofNullable( |
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String.valueOf(((Map<String, Object>) object.get("data")).get("url"))); |
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} catch (IOException ex) { |
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log.error(ex.getMessage(), ex); |
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return Optional.empty(); |
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} |
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} |
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} |
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javadev /
pt-backend
