Share debug info: always use attachment

* share debug info: always use attachment (before: send inline if it was small enough)
* use FileProvider for debug info attachment (for Android 7 compatibility)
* dav4android, ical4android fixes

app/src/main/AndroidManifest.xml

@@ -185,6 +185,16 @@
             android:exported="true"
             android:label="@string/debug_info_title">
         </activity>
+        <provider
+            android:name="android.support.v4.content.FileProvider"
+            android:authorities="at.bitfire.davdroid.log"
+            android:grantUriPermissions="true"
+            android:exported="false">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/log_paths" />
+        </provider>
+
 
     </application>
 

app/src/main/java/at/bitfire/davdroid/App.java

@@ -94,6 +94,8 @@ public class App extends Application {
         boolean logToFile = settings.getBoolean(LOG_TO_EXTERNAL_STORAGE, false),
                 logVerbose = logToFile || Log.isLoggable(log.getName(), Log.DEBUG);
 
+        App.log.info("Verbose logging: " + logVerbose);
+
         // set logging level according to preferences
         final Logger rootLogger = Logger.getLogger("");
         rootLogger.setLevel(logVerbose ? Level.ALL : Level.INFO);

app/src/main/java/at/bitfire/davdroid/ui/DebugInfoActivity.java

@@ -18,16 +18,17 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.Loader;
 import android.content.pm.PackageManager;
-import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
 import android.provider.CalendarContract;
 import android.provider.ContactsContract;
+import android.support.v4.content.FileProvider;
 import android.support.v7.app.AppCompatActivity;
 import android.text.TextUtils;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import org.apache.commons.lang3.exception.ExceptionUtils;
 import org.apache.commons.lang3.text.WordUtils;
@@ -56,8 +57,6 @@ public class DebugInfoActivity extends AppCompatActivity implements LoaderManage
             KEY_AUTHORITY = "authority",
             KEY_PHASE = "phase";
 
-    private static final int MAX_INLINE_REPORT_LENGTH = 8000;
-
     TextView tvReport;
     String report;
 
@@ -85,31 +84,25 @@ public class DebugInfoActivity extends AppCompatActivity implements LoaderManage
             Intent sendIntent = new Intent();
             sendIntent.setAction(Intent.ACTION_SEND);
             sendIntent.setType("text/plain");
-            sendIntent.putExtra(Intent.EXTRA_SUBJECT, "DAVdroid debug info");
+            sendIntent.putExtra(Intent.EXTRA_SUBJECT, "DAVdroid " + BuildConfig.VERSION_NAME + " debug info");
 
-            boolean inline = false;
+            try {
+                File debugInfoDir = new File(getCacheDir(), "debug-info");
+                debugInfoDir.mkdir();
 
-            if (report.length() > MAX_INLINE_REPORT_LENGTH)
-                // report is too long for inline text, send it as an attachment
-                try {
-                    reportFile = File.createTempFile("davdroid-debug", ".txt", getExternalCacheDir());
-                    App.log.fine("Writing debug info to " + reportFile.getAbsolutePath());
-                    FileWriter writer = new FileWriter(reportFile);
-                    writer.write(report);
-                    writer.close();
-
-                    sendIntent.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(reportFile));
-                } catch (IOException e) {
-                    // let's hope the report is < 1 MB (Android IPC limit)
-                    inline = true;
-                }
-            else
-                inline = true;
+                reportFile = new File(debugInfoDir, "davdroid-debug.txt");
+                App.log.fine("Writing debug info to " + reportFile.getAbsolutePath());
+                FileWriter writer = new FileWriter(reportFile);
+                writer.write(report);
+                writer.close();
 
-            if (inline)
-                sendIntent.putExtra(Intent.EXTRA_TEXT, report);
+                sendIntent.putExtra(Intent.EXTRA_STREAM, FileProvider.getUriForFile(this, "at.bitfire.davdroid.log", reportFile));
 
-            startActivity(sendIntent);
+                startActivity(Intent.createChooser(sendIntent, null));
+            } catch (IOException e) {
+                App.log.log(Level.SEVERE, "Couldn't write debug info file", e);
+                Toast.makeText(this, e.getLocalizedMessage(), Toast.LENGTH_LONG).show();
+            }
         }
     }
 

app/src/main/res/xml/log_paths.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright © Ricki Hirner (bitfire web engineering).
+  ~ All rights reserved. This program and the accompanying materials
+  ~ are made available under the terms of the GNU Public License v3.0
+  ~ which accompanies this distribution, and is available at
+  ~ http://www.gnu.org/licenses/gpl.html
+  -->
+
+<paths>
+    <!-- debug info can be deleted after it has been used, so let's use a cache dir -->
+    <cache-path name="debug-info" path="debug-info/"/>
+</paths>

dav4android

@@ -1 +1 @@
-Subproject commit fc4bd45099d918590f65f85b7d3f2d978e9dc2d3
+Subproject commit de3a570bcd1ce108f240f493c562e7b3ee0bfc4f

ical4android

@@ -1 +1 @@
-Subproject commit dd2510bc582cd210162a95fcbfe6bc52cff01da3
+Subproject commit d049f7b5e50b7ade2405b16d0ce8ae518160f642