From 75eccad81e48ed6690dfe9e4199f306e2e008f75 Mon Sep 17 00:00:00 2001
From: Akilan Selvacoumar <me@akilan.io>
Date: Sun, 2 Jan 2022 02:33:32 +0400
Subject: [PATCH] added download

---
 app/src/main/AndroidManifest.xml             |  18 ++-
 app/src/main/java/com/peernet/test/Search.kt | 124 +++++++++++++------
 app/src/main/res/layout/activity_search.xml  |  10 ++
 app/src/main/res/xml/provided_paths.xml      |   4 +
 4 files changed, 111 insertions(+), 45 deletions(-)
 create mode 100644 app/src/main/res/xml/provided_paths.xml

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index e5f1479..c201f48 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -21,14 +21,22 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.Test"
         android:usesCleartextTraffic="true">
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="${applicationId}.provider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/provided_paths" />
+        </provider>
+        <meta-data
+            android:name="com.google.android.actions"
+            android:resource="@xml/provided_paths" />
+
         <activity
             android:name=".Blockchain_info"
             android:exported="true" />
-        <activity
-            android:name=".blockchainInfo"
-            android:exported="true"
-            android:label="@string/title_activity_blockchain_info"
-            android:theme="@style/Theme.Test.NoActionBar" />
         <activity
             android:name=".Search"
             android:exported="true" />
diff --git a/app/src/main/java/com/peernet/test/Search.kt b/app/src/main/java/com/peernet/test/Search.kt
index 25b1467..9b8cf17 100644
--- a/app/src/main/java/com/peernet/test/Search.kt
+++ b/app/src/main/java/com/peernet/test/Search.kt
@@ -1,6 +1,7 @@
 package com.peernet.test
 
 import android.content.Intent
+import android.net.Uri
 import android.os.Build
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
@@ -8,6 +9,7 @@ import android.os.Environment
 import android.util.Log
 import android.widget.*
 import androidx.annotation.RequiresApi
+import androidx.core.net.toUri
 import com.android.volley.Request
 import com.android.volley.Response
 import com.android.volley.toolbox.StringRequest
@@ -16,6 +18,8 @@ import com.android.volley.toolbox.JsonObjectRequest
 import org.json.JSONObject
 import org.json.JSONTokener
 import java.util.*
+import android.os.StrictMode
+import android.os.StrictMode.VmPolicy
 
 
 class Search : AppCompatActivity() {
@@ -24,6 +28,9 @@ class Search : AppCompatActivity() {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_search)
 
+        val builder = VmPolicy.Builder()
+        StrictMode.setVmPolicy(builder.build())
+
         // Go to the home page
         val Back = findViewById<Button>(R.id.Back)
         // Explore / search result varaibles
@@ -36,6 +43,28 @@ class Search : AppCompatActivity() {
             startActivity(intent)
         }
 
+        val DownloadPath = this.getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS)
+
+        val DownloadPathString = DownloadPath.toString()
+
+        // Open folder for downloaded files
+        val DownloadedFilesButton = findViewById<Button>(R.id.DownloadedFIles)
+
+        DownloadedFilesButton.setOnClickListener {
+            // open download path in the explorer
+            // openFolder(DownloadPath.toString())
+
+            val intent = Intent()
+                .setAction(Intent.ACTION_VIEW)
+            val mydir: Uri = Uri.parse("file://$DownloadPathString")
+            intent.setDataAndType(mydir, "*/*") // or use */*
+            //val mydir: Uri = Uri.parse("file://$DownloadPathString ")
+            //intent.setDataAndType(mydir, "*/*") // or use */*
+
+            // startActivityForResult(Intent.createChooser(intent, "Select a file"), 777)
+            startActivity(intent)
+        }
+
         val queue = Volley.newRequestQueue(this)
 
 
@@ -190,73 +219,88 @@ class Search : AppCompatActivity() {
 
             queue.add(stringRequest)
 
-            val searchResult = findViewById<ListView>(R.id.SearchResult)
 
-            // when a file is selected, Then start the download
-            searchResult.onItemClickListener = AdapterView.OnItemClickListener {parent,view, position, id ->
-                // Get the selected item text from ListView
-                val selectedItem = parent.getItemAtPosition(position) as String
-                Log.d("myTag",  selectedItem);
+        }
 
-                // appropriate information to do a download of the file
-                for (i in 0 until ResponseObjectSearch.getJSONArray("files").length()) {
-                    val searchResultElement = ResponseObjectSearch.getJSONArray("files")[i]
+        val searchResult = findViewById<ListView>(R.id.SearchResult)
 
-                    val FileName = JSONTokener(ResponseObjectSearch.getJSONArray("files")[i].toString()).nextValue() as JSONObject
-                    // If there is match. Get the appropriate information such as Node ID.
-                    if (FileName.get("name").toString() == selectedItem) {
-                        // File hash
-                        val FileHash = FileName.get("hash").toString()
-                        Log.d("myTag", FileHash)
-                        val NodeID = FileName.get("nodeid").toString()
-                        Log.d("myTag", NodeID)
+        // when a file is selected, Then start the download
+        searchResult.onItemClickListener = AdapterView.OnItemClickListener {parent,view, position, id ->
+            // Get the selected item text from ListView
+            val selectedItem = parent.getItemAtPosition(position) as String
+            Log.d("myTag",  selectedItem);
 
-                        // decode base64 file hash
-                        val FileHashByte: ByteArray = Base64.getDecoder().decode(FileHash)
+            // appropriate information to do a download of the file
+            for (i in 0 until ResponseObjectSearch.getJSONArray("files").length()) {
+                val searchResultElement = ResponseObjectSearch.getJSONArray("files")[i]
+
+                val FileName = JSONTokener(ResponseObjectSearch.getJSONArray("files")[i].toString()).nextValue() as JSONObject
+                // If there is match. Get the appropriate information such as Node ID.
+                if (FileName.get("name").toString() == selectedItem) {
+                    // File hash
+                    val FileHash = FileName.get("hash").toString()
+                    Log.d("myTag", FileHash)
+                    val NodeID = FileName.get("nodeid").toString()
+                    Log.d("myTag", NodeID)
+
+                    // decode base64 file hash
+                    val FileHashByte: ByteArray = Base64.getDecoder().decode(FileHash)
+                    val NodeHashByte: ByteArray = Base64.getDecoder().decode(NodeID)
 
 
 
 
-                        val DownloadPath = this.getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS)
+                    Log.d("NodeHash",  DownloadPath.toString());
 
-                        Log.d("download",  DownloadPath.toString());
+                    // Get request URL to download the file
+                    val DownloadURL = "http://127.0.0.1:5125/download/start?path=" + DownloadPath.toString() + "/" + FileName.get("name") + "&hash=" + FileHashByte.toHexString() + "&node=" + NodeHashByte.toHexString()
 
-                        // Get request URL to download the file
-                        val DownloadURL = "http://127.0.0.1:5125/download/start?path=" + java.net.URLEncoder.encode(DownloadPath.toString() + "/" + FileName.get("name"), "utf-8") + "&hash=" + java.net.URLEncoder.encode(FileHash, "utf-8") + "&node=" + java.net.URLEncoder.encode(NodeID, "utf-8")
-
-                        val DownloadRequest = StringRequest(
-                            Request.Method.GET, DownloadURL,
-                            Response.Listener<String> { response ->
-                                //val  connectionLabel = findViewById<View>(R.id.PeernetInfo) as TextView
-                                // Display the first 500 characters of the response string.
-                                // textView.text = "Response is: ${response.substring(0, 500)}"
-                                //connectionLabel.text= "Response is: ${response.substring(0, 500)}"
+                    val DownloadRequest = StringRequest(
+                        Request.Method.GET, DownloadURL,
+                        Response.Listener<String> { response ->
+                            //val  connectionLabel = findViewById<View>(R.id.PeernetInfo) as TextView
+                            // Display the first 500 characters of the response string.
+                            // textView.text = "Response is: ${response.substring(0, 500)}"
+                            //connectionLabel.text= "Response is: ${response.substring(0, 500)}"
 //                                val  connectionLabel = findViewById<View>(R.id.PeernetInfo) as TextView
 //                                connectionLabel.text = response.toString()
-                                 Log.d("myTag", "Response is: ${response}");
-                            },
-                            Response.ErrorListener { errorresponse ->
+                            Log.d("myTag", "Response is: ${response}");
+                        },
+                        Response.ErrorListener { errorresponse ->
 //                                val  connectionLabel = findViewById<View>(R.id.PeernetInfo) as TextView
 //                                connectionLabel.text = errorresponse.toString()
-                                Log.d("myTag",  errorresponse.toString());
-                            })
+                            Log.d("myTag",  errorresponse.toString());
+                        })
 
-                        queue.add(DownloadRequest)
-
-
-                    }
+                    queue.add(DownloadRequest)
 
 
                 }
 
+
             }
+
         }
 
 
     }
 
+    fun ByteArray.toHexString() = joinToString("") { "%02x".format(it) }
 
+    fun openFolder(location: String) {
+        // location = "/sdcard/my_folder";
+//        val intent = Intent(Intent.ACTION_VIEW)
+//        val mydir: Uri = Uri.parse("file://$location")
+//        intent.setDataAndType(mydir, "application/*") // or use */*
+      //  startActivity(intent)
 
+        val intent = Intent()
+            .setAction(Intent.ACTION_VIEW)
+        val mydir: Uri = Uri.parse("file://$location")
+        intent.setDataAndType(mydir, "*/*") // or use */*
+
+        startActivity(Intent.createChooser(intent, "Open folder"))
+    }
 
 
 }
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_search.xml b/app/src/main/res/layout/activity_search.xml
index 5080537..b04b023 100644
--- a/app/src/main/res/layout/activity_search.xml
+++ b/app/src/main/res/layout/activity_search.xml
@@ -50,4 +50,14 @@
         app:layout_constraintTop_toTopOf="parent"
         app:layout_constraintVertical_bias="1.0" />
 
+    <Button
+        android:id="@+id/DownloadedFIles"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="View Downloaded files"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintHorizontal_bias="0.912"
+        app:layout_constraintStart_toStartOf="parent"
+        tools:layout_editor_absoluteY="4dp" />
+
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/xml/provided_paths.xml b/app/src/main/res/xml/provided_paths.xml
new file mode 100644
index 0000000..8d13fa1
--- /dev/null
+++ b/app/src/main/res/xml/provided_paths.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<paths>
+    <external-path name="external_files" path="."/>
+</paths>