mirror of
https://github.com/Athou/commafeed.git
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95 lines
3.3 KiB
Java
95 lines
3.3 KiB
Java
package com.commafeed.backend.pubsubhubbub;
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import java.util.List;
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import javax.inject.Inject;
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import javax.ws.rs.core.MediaType;
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import org.apache.commons.lang.StringUtils;
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import org.apache.http.HttpHeaders;
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import org.apache.http.HttpResponse;
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import org.apache.http.NameValuePair;
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import org.apache.http.client.HttpClient;
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import org.apache.http.client.entity.UrlEncodedFormEntity;
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import org.apache.http.client.methods.HttpPost;
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import org.apache.http.message.BasicNameValuePair;
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import org.apache.http.util.EntityUtils;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import com.commafeed.backend.HttpGetter;
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import com.commafeed.backend.dao.FeedPushInfoDAO;
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import com.commafeed.backend.feeds.FeedUtils;
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import com.commafeed.backend.model.Feed;
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import com.commafeed.backend.model.FeedPushInfo;
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import com.commafeed.backend.services.ApplicationSettingsService;
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import com.google.common.collect.Lists;
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public class SubscriptionHandler {
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private static Logger log = LoggerFactory
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.getLogger(SubscriptionHandler.class);
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@Inject
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ApplicationSettingsService applicationSettingsService;
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@Inject
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FeedPushInfoDAO feedPushInfoDAO;
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public void subscribe(Feed feed) {
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FeedPushInfo info = feed.getPushInfo();
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String hub = info.getHub();
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String topic = info.getTopic();
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String publicUrl = FeedUtils
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.removeTrailingSlash(applicationSettingsService.get()
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.getPublicUrl());
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log.debug("sending new pubsub subscription to {} for {}", hub, topic);
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HttpPost post = new HttpPost(hub);
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List<NameValuePair> nvp = Lists.newArrayList();
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nvp.add(new BasicNameValuePair("hub.callback", publicUrl
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+ "/rest/push/callback"));
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nvp.add(new BasicNameValuePair("hub.topic", topic));
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nvp.add(new BasicNameValuePair("hub.mode", "subscribe"));
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nvp.add(new BasicNameValuePair("hub.verify", "async"));
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nvp.add(new BasicNameValuePair("hub.secret", ""));
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nvp.add(new BasicNameValuePair("hub.verify_token", ""));
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nvp.add(new BasicNameValuePair("hub.lease_seconds", ""));
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post.setHeader(HttpHeaders.USER_AGENT, "CommaFeed");
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post.setHeader(HttpHeaders.CONTENT_TYPE,
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MediaType.APPLICATION_FORM_URLENCODED);
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HttpClient client = HttpGetter.newClient();
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try {
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post.setEntity(new UrlEncodedFormEntity(nvp));
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HttpResponse response = client.execute(post);
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int code = response.getStatusLine().getStatusCode();
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if (code != 204 && code != 202 && code != 200) {
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String message = EntityUtils.toString(response.getEntity());
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String pushpressError = " is value is not allowed. You may only subscribe to";
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if (code == 400
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&& StringUtils.contains(message, pushpressError)) {
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String[] tokens = message.split(" ");
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info.setTopic(tokens[tokens.length - 1]);
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feedPushInfoDAO.update(info);
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log.debug("handled pushpress subfeed {} : {}", topic,
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info.getTopic());
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} else {
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throw new Exception("Unexpected response code: " + code
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+ " " + response.getStatusLine().getReasonPhrase()
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+ " - " + message);
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}
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}
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log.debug("subscribed to {} for {}", hub, topic);
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} catch (Exception e) {
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log.error("Could not subscribe to {} for {} : {}", hub, topic,
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e.getMessage(), e);
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} finally {
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client.getConnectionManager().shutdown();
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}
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}
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}
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