[Merge to M58] [Android Crash Reporting] Simplify crash report upload code.

chrome/android/java/src/org/chromium/chrome/browser/crash/MinidumpPreparationCallable.java

Index: chrome/android/java/src/org/chromium/chrome/browser/crash/MinidumpPreparationCallable.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/crash/MinidumpPreparationCallable.java b/chrome/android/java/src/org/chromium/chrome/browser/crash/MinidumpPreparationCallable.java
deleted file mode 100644
index 4529ff255857e533718877aafa692fa3918b6c26..0000000000000000000000000000000000000000
--- a/chrome/android/java/src/org/chromium/chrome/browser/crash/MinidumpPreparationCallable.java
+++ /dev/null
@@ -1,197 +0,0 @@
-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-package org.chromium.chrome.browser.crash;
-
-import android.content.Context;
-import android.content.Intent;
-
-import org.chromium.base.Log;
-import org.chromium.components.minidump_uploader.CrashFileManager;
-
-import java.io.BufferedInputStream;
-import java.io.BufferedOutputStream;
-import java.io.BufferedReader;
-import java.io.BufferedWriter;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.FileReader;
-import java.io.FileWriter;
-import java.io.IOException;
-import java.util.Collections;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.concurrent.Callable;
-
-/**
- * Callable helper for {@link MinidumpPreparationService}.
- *
- * This class will append a logcat file to a minidump file for upload.
- */
-public class MinidumpPreparationCallable implements Callable<Boolean> {
-    private static final String TAG = "DumpPrepCallable";
-
-    private static final String LOGCAT_CONTENT_DISPOSITION =
-            "Content-Disposition: form-data; name=\"logcat\"; filename=\"logcat\"";
-
-    private static final String LOGCAT_CONTENT_TYPE = "Content-Type: text/plain";
-
-    private final File mLogcatFile;
-    private final File mMinidumpFile;
-    private final Intent mRedirectIntent;
-    private final Context mContext;
-    private final CrashFileManager mFileManager;
-
-    public MinidumpPreparationCallable(
-            Context context, File miniDumpFile, File logcatFile, Intent redirectIntent) {
-        mContext = context;
-        mLogcatFile = logcatFile;
-        mMinidumpFile = miniDumpFile;
-        mRedirectIntent = redirectIntent;
-        mFileManager = new CrashFileManager(context.getCacheDir());
-    }
-
-    /**
-     * Read the boundary from the first lien of the file.
-     */
-    private static String getBoundary(File processMinidumpFile) throws IOException {
-        BufferedReader bReader = null;
-        try {
-            bReader = new BufferedReader(new FileReader(processMinidumpFile));
-            return bReader.readLine();
-        } finally {
-            if (bReader != null) {
-                bReader.close();
-            }
-        }
-    }
-
-    /**
-     * Write the invoking {@link MinidumpPreparationCallable}s logcat data to
-     * the specified target {@link File}.
-     *
-     * Target file is overwritten, not appended to the end.
-     *
-     * @param targetFile File to which logcat data should be written.
-     * @param boundary String MIME boundary to prepend.
-     * @throws IOException if something goes wrong.
-     */
-    private static void writeLogcat(File targetFile, List<String> logcat, String boundary)
-            throws IOException {
-        BufferedWriter bWriter = null;
-        try {
-            bWriter = new BufferedWriter(new FileWriter(targetFile, false));
-            bWriter.write(boundary);
-            bWriter.newLine();
-            // Next we write the logcat data in a MIME block.
-            bWriter.write(LOGCAT_CONTENT_DISPOSITION);
-            bWriter.newLine();
-            bWriter.write(LOGCAT_CONTENT_TYPE);
-            bWriter.newLine();
-            bWriter.newLine();
-            // Emits the contents of the buffer into the output file.
-            for (String ln : logcat) {
-                bWriter.write(ln);
-                bWriter.newLine();
-            }
-        } finally {
-            if (bWriter != null) {
-                bWriter.close();
-            }
-        }
-    }
-
-    /**
-     * Append the minidump file data to the specified target {@link File}.
-     *
-     * @param processMinidumpFile File containing data to append.
-     * @param targetFile File to which data should be appended.
-     * @throws IOException when standard IO errors occur.
-     */
-    private static void appendMinidump(File processMinidumpFile, File targetFile)
-            throws IOException {
-        BufferedInputStream bIn = null;
-        BufferedOutputStream bOut = null;
-        try {
-            byte[] buf = new byte[256];
-            bIn = new BufferedInputStream(new FileInputStream(processMinidumpFile));
-            bOut = new BufferedOutputStream(new FileOutputStream(targetFile, true));
-            int count;
-            while ((count = bIn.read(buf)) != -1) {
-                bOut.write(buf, 0, count);
-            }
-        } finally {
-            if (bIn != null) bIn.close();
-            if (bOut != null) bOut.close();
-        }
-    }
-
-    private boolean augmentTargetFile(List<String> logcat) {
-        File targetFile = null;
-        try {
-            targetFile = mFileManager.createNewTempFile(mMinidumpFile.getName() + ".try0");
-
-            String boundary = getBoundary(mMinidumpFile);
-            if (boundary == null) {
-                return false;
-            }
-            writeLogcat(targetFile, logcat, boundary);
-            // Finally Reopen and append the original minidump MIME sections
-            // including the leading boundary.
-            appendMinidump(mMinidumpFile, targetFile);
-            if (!mMinidumpFile.delete()) {
-                Log.w(TAG, "Fail to delete minidump file: " + mMinidumpFile.getName());
-            }
-            return true;
-        } catch (IOException e) {
-            String msg = String.format(
-                    "Error while tyring to annotate minidump file %s with logcat data",
-                    mMinidumpFile.getAbsoluteFile());
-            Log.w(TAG, msg, e);
-            if (targetFile != null) {
-                CrashFileManager.deleteFile(targetFile);
-            }
-            return false;
-        }
-    }
-
-    private List<String> getLogcatAsList() throws IOException {
-        BufferedReader r = null;
-        try {
-            List<String> logcat = new LinkedList<String>();
-            if (mLogcatFile != null) {
-                r = new BufferedReader(new FileReader(mLogcatFile));
-                String ln;
-                while ((ln = r.readLine()) != null) {
-                    logcat.add(ln);
-                }
-            }
-            return Collections.unmodifiableList(logcat);
-        } finally {
-            if (r != null) {
-                r.close();
-            }
-        }
-    }
-
-    @Override
-    public Boolean call() throws IOException {
-        // By default set the basic minidump to be uploaded. That way, even if
-        // there are errors augmenting the minidump with logcat data, the service
-        // can still upload the unaugmented minidump.
-        List<String> logcat = getLogcatAsList();
-        boolean success = true;
-        if (!logcat.isEmpty()) {
-            success = augmentTargetFile(logcat);
-            if (success && !mLogcatFile.delete()) {
-                Log.w(TAG, "Failed to delete logcat file: " + mLogcatFile.getName());
-            }
-        }
-        if (mRedirectIntent != null) {
-            mContext.startService(mRedirectIntent);
-        }
-        return success;
-    }
-}