From ade89401107087e163b9197a6c33d104b8a78ef7 Mon Sep 17 00:00:00 2001
From: Adeel Zafar <adeelzafar619@gmail.com>
Date: Sun, 28 Jul 2019 16:48:44 +0500
Subject: [PATCH] Read main page of ZIM File and write on storage

---
 .../kiwix/kiwixmobile/main/MainActivity.java  | 40 ++++++++++++++++---
 .../kiwixmobile/webserver/WebServer.java      |  8 ++--
 2 files changed, 37 insertions(+), 11 deletions(-)

diff --git a/app/src/main/java/org/kiwix/kiwixmobile/main/MainActivity.java b/app/src/main/java/org/kiwix/kiwixmobile/main/MainActivity.java
index e241f822a..f35d257a2 100644
--- a/app/src/main/java/org/kiwix/kiwixmobile/main/MainActivity.java
+++ b/app/src/main/java/org/kiwix/kiwixmobile/main/MainActivity.java
@@ -100,6 +100,9 @@ import com.google.android.material.snackbar.Snackbar;
 import io.reactivex.android.schedulers.AndroidSchedulers;
 
 import java.io.File;
+import java.io.FileOutputStream;
+import java.io.InputStream;
+import java.io.OutputStream;
 import java.text.SimpleDateFormat;
 import java.lang.reflect.Method;
 import java.util.ArrayList;
@@ -183,6 +186,8 @@ public class MainActivity extends BaseActivity implements WebViewCallback,
   public static final String ACTION_TURN_OFF_BEFORE_O = "Turn_aff_hotspot_before_oreo";
   public static final String ACTION_TURN_ON_AFTER_O = "Turn_on_hotspot_after_oreo";
   public static final String ACTION_TURN_OFF_AFTER_O = "Turn_off_hotspot_after_oreo";
+  public static final String MAIN_PAGE_STORAGE_PATH =
+      "/storage/emulated/0/Download/outputDang.html";
   public static boolean isFullscreenOpened;
   public static boolean refresh;
   public static boolean wifiOnly;
@@ -957,14 +962,15 @@ public class MainActivity extends BaseActivity implements WebViewCallback,
         openExternalUrl(intentSupportKiwix);
 
       case R.id.menu_wifi_hotspot:
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-          toggleHotspot();
-        } else {
-          if (showWritePermissionSettings()) { //request permission and if already granted switch hotspot.
-            switchHotspot();
+        if (readHtmlPage()) {
+          if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            toggleHotspot();
+          } else {
+            if (showWritePermissionSettings()) { //request permission and if already granted switch hotspot.
+              switchHotspot();
+            }
           }
         }
-
       default:
         break;
     }
@@ -972,6 +978,28 @@ public class MainActivity extends BaseActivity implements WebViewCallback,
     return super.onOptionsItemSelected(item);
   }
 
+  private boolean readHtmlPage() {
+    String url =
+        Uri.parse(ZimContentProvider.CONTENT_URI + ZimContentProvider.getMainPage()).toString();
+    Uri uri = Uri.parse(url);
+    try {
+      InputStream in = getContentResolver().openInputStream(uri);
+      OutputStream out =
+          new FileOutputStream(new File(MAIN_PAGE_STORAGE_PATH));
+      byte[] buf = new byte[1024];
+      int len;
+      while ((len = in.read(buf)) > 0) {
+        out.write(buf, 0, len);
+      }
+      out.close();
+      in.close();
+      return true;
+    } catch (Exception e) {
+      Log.v("DANG", e.toString());
+    }
+    return false;
+  }
+
   /** Dialog to take user confirmation before deleting all notes */
   private void showClearAllNotesDialog() {
 
diff --git a/app/src/main/java/org/kiwix/kiwixmobile/webserver/WebServer.java b/app/src/main/java/org/kiwix/kiwixmobile/webserver/WebServer.java
index 85653b27b..7c8c1defd 100644
--- a/app/src/main/java/org/kiwix/kiwixmobile/webserver/WebServer.java
+++ b/app/src/main/java/org/kiwix/kiwixmobile/webserver/WebServer.java
@@ -5,12 +5,11 @@ import fi.iki.elonen.NanoHTTPD;
 import java.io.BufferedReader;
 import java.io.FileReader;
 import java.io.IOException;
-import java.util.Map;
 
 public class WebServer extends NanoHTTPD {
   private String selectedFilePath;
 
-  public WebServer(int port,String selectedFilePath) {
+  public WebServer(int port, String selectedFilePath) {
     super(port);
     this.selectedFilePath = selectedFilePath;
   }
@@ -26,11 +25,10 @@ public class WebServer extends NanoHTTPD {
         answer += line;
       }
       reader.close();
-
-    } catch(IOException ioe) {
+    } catch (IOException ioe) {
       Log.w("Httpd", ioe.toString());
     }
 
-
     return newFixedLengthResponse(answer);
   }
+}