From e561d0c4faefce7f0e32e15a5667b6512c6341d7 Mon Sep 17 00:00:00 2001
From: Vitaly Takmazov
Date: Wed, 29 Mar 2017 00:32:38 +0300
Subject: juick-notifications: refactor using with Spring annotations

---
 .../main/java/com/juick/components/MPNSClient.java | 103 +++++++++++++++++++++
 1 file changed, 103 insertions(+)
 create mode 100644 juick-notifications/src/main/java/com/juick/components/MPNSClient.java

(limited to 'juick-notifications/src/main/java/com/juick/components/MPNSClient.java')

diff --git a/juick-notifications/src/main/java/com/juick/components/MPNSClient.java b/juick-notifications/src/main/java/com/juick/components/MPNSClient.java
new file mode 100644
index 00000000..165bb94c
--- /dev/null
+++ b/juick-notifications/src/main/java/com/juick/components/MPNSClient.java
@@ -0,0 +1,103 @@
+package com.juick.components;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.juick.components.mpns.MPNSError;
+import com.juick.components.mpns.MPNSToken;
+import org.apache.http.*;
+import org.apache.http.client.HttpClient;
+import org.apache.http.client.entity.UrlEncodedFormEntity;
+import org.apache.http.client.methods.HttpPost;
+import org.apache.http.entity.StringEntity;
+import org.apache.http.impl.client.HttpClientBuilder;
+import org.apache.http.message.BasicNameValuePair;
+import org.apache.http.util.EntityUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Value;
+
+import javax.annotation.PostConstruct;
+import javax.inject.Inject;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+/**
+ * Created by vital on 29.03.2017.
+ */
+public class MPNSClient {
+
+    private static Logger logger = LoggerFactory.getLogger(MPNSClient.class);
+
+    private String accessToken;
+
+    private NotificationClientListener listener;
+
+    @Inject
+    private ObjectMapper jsonMapper;
+    @Value("${wns_application_sip}")
+    private String applicationSip;
+    @Value("${wns_client_secret}")
+    private String applicationSecret;
+
+    @PostConstruct
+    public void authenticate() throws IOException {
+        HttpClient client = HttpClientBuilder.create().build();
+        String url = "https://login.live.com/accesstoken.srf";
+        List<NameValuePair> formParams = new ArrayList<>();
+        formParams.add(new BasicNameValuePair("grant_type", "client_credentials"));
+        formParams.add(new BasicNameValuePair("client_id", applicationSip));
+        formParams.add(new BasicNameValuePair("client_secret", applicationSecret));
+        formParams.add(new BasicNameValuePair("scope", "notify.windows.com"));
+        UrlEncodedFormEntity entity = new UrlEncodedFormEntity(formParams, Consts.UTF_8);
+        HttpPost httppost = new HttpPost(url);
+        httppost.setEntity(entity);
+        HttpResponse response = client.execute(httppost);
+        int statusCode = response.getStatusLine().getStatusCode();
+        String responseContent = EntityUtils.toString(response.getEntity(), Consts.UTF_8);
+        if (statusCode != HttpStatus.SC_OK) {
+            MPNSError error = jsonMapper.readValue(responseContent, MPNSError.class);
+            throw new IOException(error.getError() + ": " + error.getErrorDescription());
+        }
+        MPNSToken token = jsonMapper.readValue(responseContent, MPNSToken.class);
+        if (token.getTokenType().length() >= 1) {
+            token.setTokenType(Character.toUpperCase(token.getTokenType().charAt(0)) + token.getTokenType().substring(1));
+        }
+        accessToken = token.getTokenType() + " " + token.getAccessToken();
+        logger.info("MPNS authenticated");
+    }
+
+    void sendNotification(final String url, final String xml) throws IOException {
+        HttpClient client = HttpClientBuilder.create().build();
+        StringEntity entity = new StringEntity(xml, Consts.UTF_8);
+        HttpPost httpPost = new HttpPost(url);
+        httpPost.setHeader("Content-Type", "text/xml");
+        httpPost.setHeader("Authorization", accessToken);
+        httpPost.setHeader("X-WNS-Type", "wns/toast");
+        httpPost.setEntity(entity);
+        HttpResponse response = client.execute(httpPost);
+        int statusCode = response.getStatusLine().getStatusCode();
+        if (statusCode != HttpStatus.SC_OK) {
+            if (statusCode == HttpStatus.SC_GONE) {
+                // expired
+                logger.info("{} is scheduled to remove", url);
+                listener.invalidToken("mpns", url);
+            } else {
+                String headersContent = stringifyWnsHttpHeaders(response.getAllHeaders());
+                throw new IOException(headersContent);
+            }
+        }
+    }
+
+    private String stringifyWnsHttpHeaders(final Header[] allHeaders) {
+        return Arrays.stream(allHeaders)
+                .filter(x -> x.getName().startsWith("X-WNS-") || x.getName().startsWith("WWW-"))
+                .map(x -> x.getName() + ": " + x.getValue())
+                .collect(Collectors.joining("\n"));
+    }
+
+    public void setListener(NotificationClientListener listener) {
+        this.listener = listener;
+    }
+}
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