Merge pull request #4 from k3b/ExportCsv

SecUSo#42: created fileUtils

app/src/main/AndroidManifest.xml

@@ -108,6 +108,15 @@
                     android:name="org.secuso.privacyfriendlybackup.api.pfa.PFAAuthService" />
             </intent-filter>
         </service>
+        <provider
+            android:name="androidx.core.content.FileProvider"
+            android:authorities="org.secuso.privacyfriendlyfinance"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/file_provider_paths"/>
+        </provider>
     </application>
 
 </manifest>

app/src/main/java/org/secuso/privacyfriendlyfinance/activities/helper/FileHelper.java

@@ -0,0 +1,78 @@
+/*
+ Privacy Friendly Finance Manager is licensed under the GPLv3.
+ Copyright (C) 2023 k3b
+
+ This program is free software: you can redistribute it and/or modify it under the terms of the GNU
+ General Public License as published by the Free Software Foundation, either version 3 of the
+ License, or (at your option) any later version.
+ This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along with this program.
+ If not, see http://www.gnu.org/licenses/.
+
+ Additionally icons from Google Design Material Icons are used that are licensed under Apache
+ License Version 2.0.
+ */
+
+package org.secuso.privacyfriendlyfinance.activities.helper;
+
+import android.content.ClipData;
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Build;
+
+import androidx.core.content.FileProvider;
+
+import java.io.File;
+
+/** Android specific file helpers */
+public class FileHelper {
+    private static final String FILENAME = "export.csv";
+
+    private static final String MIME_CSV = "text/csv";
+
+    private static File getSharedDir(Context context) {
+        File sharedDir = new File(context.getFilesDir(), "shared");
+        sharedDir.mkdirs();
+
+        return sharedDir;
+    }
+
+    public static File getCsvFile(Context context) {
+        File outFile = new File(getSharedDir(context), FILENAME);
+        return outFile;
+    }
+
+    private static Uri getCsvFileUri(Context context) {
+        return FileProvider.getUriForFile(context, "org.secuso.privacyfriendlyfinance", getCsvFile(context));
+    }
+
+    public static  boolean sendCsv(Context context, String chooserLabel) {
+        Uri outUri = getCsvFileUri(context);
+
+        if (outUri != null) {
+            Intent childSend = new Intent();
+
+            childSend
+                    .setAction(Intent.ACTION_SEND)
+                    .putExtra(Intent.EXTRA_STREAM, outUri)
+                    .setType(MIME_CSV);
+
+            childSend.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
+                ClipData clip = ClipData.newUri(context.getContentResolver(), outUri.toString(), outUri);
+                childSend.setClipData(clip);
+            }
+
+            final Intent execIntent = Intent.createChooser(childSend, chooserLabel);
+
+            context.startActivity(execIntent);
+            return true;
+        }
+        return false;
+    }
+}

app/src/main/java/org/secuso/privacyfriendlyfinance/csv/README.md

@@ -0,0 +1,13 @@
+# csv definition
+
+charset = "utf8"
+csv-fielddelimiter = ";"
+enclose in -"- : only if necessary
+
+Available columns
+
+* date (without time as iso string)
+* amount (in euro cent)
+* note (transaction name or comment)
+* category = name of selected category or empty
+* account = name of selected account or empty

app/src/main/res/xml/file_provider_paths.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+/*
+ Privacy Friendly Finance Manager is licensed under the GPLv3.
+ Copyright (C) 2023 k3b
+
+ This program is free software: you can redistribute it and/or modify it under the terms of the GNU
+ General Public License as published by the Free Software Foundation, either version 3 of the
+ License, or (at your option) any later version.
+ This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along with this program.
+ If not, see http://www.gnu.org/licenses/.
+
+ Additionally icons from Google Design Material Icons are used that are licensed under Apache
+ License Version 2.0.
+ */
+ -->
+<paths >
+    <files-path name="shared" path="shared/"/>
+</paths>
+