Also use the model page to detect the online state

CHANGELOG.md

@@ -3,6 +3,7 @@
 * Added more category tabs for CamSoda
 * Added button to the "Recording" tab to go over all model URLs and check, if
   the account still exists
+* Fix: some Cam4 models were not detected as online
 
 3.10.8
 ========================

common/src/main/java/ctbrec/sites/cam4/Cam4Model.java

@@ -2,6 +2,7 @@ package ctbrec.sites.cam4;
 
 import static ctbrec.Model.State.*;
 import static ctbrec.io.HttpConstants.*;
+import static java.util.regex.Pattern.*;
 
 import java.io.IOException;
 import java.io.InputStream;
@@ -10,6 +11,8 @@ import java.util.List;
 import java.util.Objects;
 import java.util.Optional;
 import java.util.concurrent.ExecutionException;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 
 import org.json.JSONArray;
 import org.json.JSONObject;
@@ -51,7 +54,15 @@ public class Cam4Model extends AbstractModel {
             try {
                 loadModelDetails();
             } catch (ModelDetailsEmptyException e) {
-                return false;
+                // nothing to do, keep going
+            }
+            if (playlistUrl == null || onlineState == OFFLINE) {
+                try {
+                    getPlaylistUrl();
+                    onlineState = ONLINE;
+                } catch (IOException e) {
+                    return false;
+                }
             }
         }
         return onlineState == ONLINE && !privateRoom && playlistUrl != null && !playlistUrl.isEmpty();
@@ -126,19 +137,40 @@ public class Cam4Model extends AbstractModel {
     }
 
     private String getPlaylistUrl() throws IOException {
-        if(playlistUrl == null || playlistUrl.trim().isEmpty()) {
-            try {
-                loadModelDetails();
-                if (playlistUrl == null) {
-                    throw new IOException("Couldn't determine playlist url");
+        if (playlistUrl == null || playlistUrl.trim().isEmpty()) {
+            String page = loadModelPage();
+            Matcher m = Pattern.compile("hlsUrl\\s*:\\s*'(.*?)'", DOTALL | MULTILINE).matcher(page);
+            if (m.find()) {
+                playlistUrl = m.group(1);
+            } else {
+                m = Pattern.compile("\"videoPlayUrl\"\\s*:\\s*\"(.*?)\"", DOTALL | MULTILINE).matcher(page);
+                if (m.find()) {
+                    String streamName = m.group(1);
+                    m = Pattern.compile(".*?-(\\d{3,})-.*?").matcher(streamName);
+                    if (m.find()) {
+                        String number = m.group(1);
+                        playlistUrl = "https://cam4-hls.xcdnpro.com/" + number + "/cam4-origin-live/ngrp:" + streamName + "_all/playlist.m3u8";
+                    }
                 }
-            } catch (ModelDetailsEmptyException e) {
-                throw new IOException(e);
+            }
+            if (playlistUrl == null) {
+                throw new IOException("Couldn't determine playlist url");
             }
         }
         return playlistUrl;
     }
 
+    private String loadModelPage() throws IOException {
+        Request req = new Request.Builder().url(getUrl()).build();
+        try (Response response = site.getHttpClient().execute(req)) {
+            if (response.isSuccessful()) {
+                return response.body().string();
+            } else {
+                throw new HttpException(response.code(), response.message());
+            }
+        }
+    }
+
     @Override
     public List<StreamSource> getStreamSources() throws IOException, ExecutionException, ParseException, PlaylistException {
         MasterPlaylist masterPlaylist = getMasterPlaylist();