add support for affiliate

extractor/src/main/java/org/schabi/newpipe/extractor/services/soundcloud/SoundcloudStreamExtractor.java

@@ -214,6 +214,11 @@ public class SoundcloudStreamExtractor extends StreamExtractor {
         return new String[0];
     }
 
+    @Override
+    public String[] getAffiliateLinks() {
+        return new String[0];
+    }
+
     @Override
     public String getErrorMessage() {
         return null;

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/ItagItem.java

@@ -43,6 +43,9 @@ public class ItagItem {
             new ItagItem(139, AUDIO, M4A, 48),
             new ItagItem(140, AUDIO, M4A, 128),
             new ItagItem(141, AUDIO, M4A, 256),
+            new ItagItem(249, AUDIO, OPUS, 50),
+            new ItagItem(250, AUDIO, OPUS, 70),
+            new ItagItem(160, AUDIO, OPUS, 160),
 
             /// VIDEO ONLY ////////////////////////////////////////////
             //           ID      Type     Format  Resolution  FPS  ///

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeChannelExtractor.java

@@ -196,7 +196,7 @@ public class YoutubeChannelExtractor extends ChannelExtractor {
             }
             for(Element a : linkHolder.select("a")) {
                 String link = a.attr("abs:href");
-                if(DonationLinkHelper.getServiceByLink(link) != DonationLinkHelper.DonationService.NO_DONATION) {
+                if(DonationLinkHelper.getDonatoinServiceByLink(link) != DonationLinkHelper.DonationService.NO_DONATION) {
                     links.add(link);
                 }
             }

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/YoutubeStreamExtractor.java

@@ -534,7 +534,7 @@ public class YoutubeStreamExtractor extends StreamExtractor {
         try {
             ArrayList<String> donationLinks = new ArrayList<>();
             for (String s : Parser.getLinksFromString(getDescription())) {
-                if (DonationLinkHelper.getServiceByLink(s) != DonationLinkHelper.DonationService.NO_DONATION) {
+                if (DonationLinkHelper.getDonatoinServiceByLink(s) != DonationLinkHelper.DonationService.NO_DONATION) {
                     donationLinks.add(s);
                 }
             }
@@ -546,6 +546,23 @@ public class YoutubeStreamExtractor extends StreamExtractor {
         }
     }
 
+    @Override
+    public String[] getAffiliateLinks() throws ParsingException {
+        try {
+            ArrayList<String> donationLinks = new ArrayList<>();
+            for (String s : Parser.getLinksFromString(getDescription())) {
+                if (DonationLinkHelper.getAffiliateServiceByLink(s) != DonationLinkHelper.AffiliateService.NO_AFILIATE) {
+                    donationLinks.add(s);
+                }
+            }
+            String[] donlret = new String[donationLinks.size()];
+            donlret = donationLinks.toArray(donlret);
+            return donlret;
+        } catch (Exception e) {
+            throw new ParsingException("Could not get afiliate links", e);
+        }
+    }
+
 
     /*//////////////////////////////////////////////////////////////////////////
     // Fetch page

extractor/src/main/java/org/schabi/newpipe/extractor/stream/StreamExtractor.java

@@ -142,6 +142,7 @@ public abstract class StreamExtractor extends Extractor {
     public abstract StreamInfoItemsCollector getRelatedVideos() throws IOException, ExtractionException;
 
     public abstract String[] getDonationLinks() throws ExtractionException;
+    public abstract String[] getAffiliateLinks() throws ExtractionException;
 
     /**
      * Analyses the webpage's document and extracts any error message there might be.

extractor/src/main/java/org/schabi/newpipe/extractor/stream/StreamInfo.java

@@ -242,6 +242,16 @@ public class StreamInfo extends Info {
         } catch (Exception e) {
             streamInfo.addError(e);
         }
+        try {
+            streamInfo.setAffiliateLinks(extractor.getAffiliateLinks());
+        } catch (Exception e) {
+            streamInfo.addError(e);
+        }
+        try {
+            streamInfo.setDonationLinks(extractor.getDonationLinks());
+        } catch (Exception e) {
+            streamInfo.addError(e);
+        }
 
         streamInfo.setRelatedStreams(ExtractorHelper.getRelatedVideosOrLogError(streamInfo, extractor));
         return streamInfo;
@@ -274,6 +284,9 @@ public class StreamInfo extends Info {
     private long startPosition = 0;
     private List<Subtitles> subtitles;
 
+    private String[] donationLinks;
+    private String[] affiliateLinks;
+
     /**
      * Get the stream type
      *
@@ -466,4 +479,20 @@ public class StreamInfo extends Info {
     public void setSubtitles(List<Subtitles> subtitles) {
         this.subtitles = subtitles;
     }
+
+    public String[] getDonationLinks() {
+        return donationLinks;
+    }
+
+    public void setDonationLinks(String[] donationLinks) {
+        this.donationLinks = donationLinks;
+    }
+
+    public String[] getAffiliateLinks() {
+        return affiliateLinks;
+    }
+
+    public void setAffiliateLinks(String[] affiliateLinks) {
+        this.affiliateLinks = affiliateLinks;
+    }
 }

extractor/src/main/java/org/schabi/newpipe/extractor/utils/DonationLinkHelper.java

@@ -7,11 +7,16 @@ public class DonationLinkHelper {
     public enum DonationService {
         NO_DONATION,
         PATREON,
-        PAYPAL
+        PAYPAL,
+    }
+
+    public enum AffiliateService {
+        NO_AFILIATE,
+        AMAZON,
     }
 
 
-    public static DonationService getServiceByLink(String link) throws MalformedURLException {
+    public static DonationService getDonatoinServiceByLink(String link) throws MalformedURLException {
         URL url = new URL(link);
         switch (url.getHost()) {
             case "www.patreon.com":
@@ -27,5 +32,12 @@ public class DonationLinkHelper {
         }
     }
 
+    public static AffiliateService getAffiliateServiceByLink(String link) throws MalformedURLException {
+        URL url = new URL(link);
+        switch (url.getHost()) {
+            case "amzn.to": return AffiliateService.AMAZON;
+            default: return AffiliateService.NO_AFILIATE;
+        }
+    }
 
 }

extractor/src/test/java/org/schabi/newpipe/extractor/services/youtube/YoutubeStreamExtractorDonationTest.java

@@ -49,4 +49,10 @@ public class YoutubeStreamExtractorDonationTest {
         assertTrue(String.valueOf(extractor.getDonationLinks().length),
                 extractor.getDonationLinks().length == 2);
     }
+
+    @Test
+    public void getAffiliateLinksTest() throws Exception {
+        assertTrue(String.valueOf(extractor.getAffiliateLinks().length),
+                extractor.getAffiliateLinks().length == 1);
+    }
 }