Add Instagram profile downloader

Author: SanjayDevTech

README.md

@@ -20,10 +20,48 @@ Insta Utils uses a number of open source libraries to work properly:
 ### Implemetation
 
 ```gradle
-implementation 'com.sanjaydevtech.instautils:instautils:1.0.1'
+implementation 'com.sanjaydevtech.instautils:instautils:1.0.2'
 ```
 
-### Initialisation
+### Instagram DP
+
+#### Fetching the url
+```java
+String instaProfile = "https://instagram.com/SanjayDevTech";
+InstaScraper.getDP(this, instaProfile, new InstaResponse() {
+    @Override
+    public void onResponse(InstaPost post) {
+        int type = post.getType(); // InstaPost.INSTA_PROFILE
+        String url = post.getUrl();
+        String thumbUrl = post.getThumbnailUrl();
+    }
+    @Override
+    public void onError(Exception e) {}
+});
+```
+
+#### Displaying
+After retrieving the InstaPost object you can set the image to an ImageView
+```java
+InstaDownloader downloader = new InstaDowloader(this);
+ImageView img = findViewById(R.id.imageView);
+downloader.setImage(post, img);
+```
+Or you can get a Bitmap object
+```java
+downloader.getBitmap(post, new InstaImage() {
+    @Override
+    public void onBitmapLoaded(Bitmap bitmap) {
+        ImageView img = findViewById(R.id.imageView);
+        img.setImageBitmap(bitmap);
+    }
+});
+```
+
+
+### Image or Video Post
+
+#### Initialisation
 
 ```java
 InstaDownloader downloader = new InstaDowloader(this);
@@ -39,15 +77,15 @@ downloader.setResponse(new InstaResponse() {
 });
 ```
 
-### Requesting a Post
+#### Requesting a Post
 
 ```java
 String sampleUrl = "https://www.instagram.com/p/123456";
 downloader.get(sampleUrl);
 ```
 
-### Setting image
-After retrieving the InstaPost object you can set the image to any ImageView
+#### Setting image
+After retrieving the InstaPost object you can set the image to an ImageView
 ```java
 ImageView img = findViewById(R.id.imageView);
 downloader.setImage(post, img);
@@ -83,7 +121,6 @@ git push
 ### Todos
 
  - Find hidden bugs
- - Add insta video downloading functionality
 
 License
 ----

app/src/main/java/com/sanjaydevtech/instarepost/MainActivity.java

@@ -15,6 +15,7 @@
 import com.sanjaydevtech.instautils.InstaImage;
 import com.sanjaydevtech.instautils.InstaPost;
 import com.sanjaydevtech.instautils.InstaResponse;
+import com.sanjaydevtech.instautils.InstaScraper;
 
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
@@ -24,6 +25,7 @@ public class MainActivity extends AppCompatActivity implements InstaResponse {
     private InstaDownloader downloader; // Declare the InstaDownloader
     private static final String TAG = MainActivity.class.getSimpleName();
     private static final String URL_PATTERN = "^https://www.instagram.com/p/.+";
+    private static final String DP_URL_PATTERN = "^(https://(www\\.)?instagram\\.com/[^p][0-9a-zA-Z_.]+)";
     private ImageView img;
 
     @Override
@@ -43,7 +45,13 @@ public void onClick(View view) {
                 if (matcher.find()) {
                     downloader.get(urlTxt.getText().toString()); // Request the post data
                 } else {
-                    Toast.makeText(MainActivity.this, "Invalid insta url", Toast.LENGTH_SHORT).show();
+                    pattern = Pattern.compile(DP_URL_PATTERN);
+                    matcher = pattern.matcher(urlTxt.getText().toString());
+                    if(matcher.find()) {
+                        InstaScraper.getDP(MainActivity.this, urlTxt.getText().toString(), MainActivity.this);
+                    } else {
+                        Toast.makeText(MainActivity.this, "Invalid insta url", Toast.LENGTH_SHORT).show();
+                    }
                 }
             }
         });

instautils/build.gradle

@@ -13,7 +13,7 @@ ext {
     siteUrl = 'https://github.com/SanjayDevTech/instautils'
     gitUrl = 'https://github.com/SanjayDevTech/instautils.git'
 
-    libraryVersion = '1.0.1'
+    libraryVersion = '1.0.2'
 
     developerId = 'sanjaydevtech'
     developerName = 'Sanjay Developer'

instautils/src/main/java/com/sanjaydevtech/instautils/InstaDownloader.java

@@ -23,7 +23,7 @@
  * Downloader Class to download insta posts
  *
  * @author Sanjay Developer
- * @version 1.0.1
+ * @version 1.0.2
  */
 public class InstaDownloader {
     private Activity activity;
@@ -59,6 +59,7 @@ public void get(final String url) throws NullPointerException {
             throw new NullPointerException("No InstaResponse Listener is attached");
         }
         new Thread() {
+            @Override
             public void run() {
                 try {
                     Document document = Jsoup.connect(url).userAgent("Mozilla/5.0").get();

instautils/src/main/java/com/sanjaydevtech/instautils/InstaPost.java

@@ -9,6 +9,7 @@ public class InstaPost {
     private String thumbnailUrl;
     public static final int INSTA_IMAGE = 0;
     public static final int INSTA_VIDEO = 1;
+    public static final int INSTA_PROFILE = 2;
 
     InstaPost(String url, int type, String thumbnailUrl) {
         this.url = url;

instautils/src/main/java/com/sanjaydevtech/instautils/InstaScraper.java

@@ -0,0 +1,110 @@
+package com.sanjaydevtech.instautils;
+
+import android.app.Activity;
+
+import org.jsoup.Jsoup;
+import org.jsoup.nodes.DataNode;
+import org.jsoup.nodes.Document;
+import org.jsoup.nodes.Element;
+import org.jsoup.select.Elements;
+
+import java.io.IOException;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * InstaScraper class for downloading dp
+ */
+public class InstaScraper {
+
+    private static final String DP_URL = "^(https://(www\\.)?instagram\\.com/[0-9a-zA-Z_.]+)";
+    private static final String NOISE = "\\u0026";
+    private static final String PROFILE_HD_PATTERN = "\"profile_pic_url_hd\":\"([^\"]*)\"";
+    private static final String PROFILE_PATTERN = "\"profile_pic_url\":\"([^\"]*)\"";
+
+
+    InstaScraper() {
+
+    }
+
+    /**
+     * To retrieve Instagram profile
+     *
+     * @param activity Current activity
+     * @param url      Url of the instagram profile
+     * @param response InstaResponse instance
+     * @throws NullPointerException Throws if no InstaResponse is attached
+     */
+
+    public static void getDP(final Activity activity, final String url, final InstaResponse response) throws NullPointerException {
+        if (response == null) {
+            throw new NullPointerException("No InstaResponse Listener is attached");
+        }
+        new Thread() {
+            @Override
+            public void run() {
+                try {
+                    boolean isData = false;
+                    Document document = Jsoup.connect(url).userAgent("Mozilla/5.0").get();
+                    Elements scripts = document.getElementsByTag("script");
+                    for (Element script : scripts) {
+                        if (isData) {
+                            break;
+                        }
+                        for (DataNode dataNode : script.dataNodes()) {
+                            String scriptData = dataNode.getWholeData().trim();
+                            if (scriptData.startsWith("window._sharedData")) {
+                                String profilePicHD = matchPattern(scriptData, PROFILE_HD_PATTERN);
+                                String profilePic = matchPattern(scriptData, PROFILE_PATTERN);
+                                if (profilePicHD != null) {
+                                    profilePicHD = profilePicHD.replace(NOISE, "&");
+                                }
+                                if (profilePic != null) {
+                                    profilePic = profilePic.replace(NOISE, "&");
+                                }
+                                final String finalProfilePicHD = profilePicHD;
+                                final String finalProfilePic = profilePic;
+                                activity.runOnUiThread(new Runnable() {
+                                    @Override
+                                    public void run() {
+                                        response.onResponse(new InstaPost(finalProfilePicHD, InstaPost.INSTA_PROFILE, finalProfilePic));
+                                    }
+                                });
+                                isData = true;
+                                break;
+                            }
+                        }
+                    }
+                    if (!isData) {
+                        activity.runOnUiThread(new Runnable() {
+                            @Override
+                            public void run() {
+                                response.onError(new NullPointerException("No data resource found"));
+                            }
+                        });
+                    }
+
+                } catch (final IOException e) {
+                    activity.runOnUiThread(new Runnable() {
+                        @Override
+                        public void run() {
+                            response.onError(e);
+                        }
+                    });
+                }
+
+            }
+        }.start();
+
+    }
+
+    private static String matchPattern(String data, String patTxt) {
+        Pattern pattern = Pattern.compile(patTxt);
+        Matcher matcher = pattern.matcher(data);
+        boolean patMatch = matcher.find();
+        if (!patMatch) {
+            return null;
+        }
+        return matcher.group(1);
+    }
+}