Put temp files within app files

Bug: 8715614
Change-Id: I307d83923070994525cf0d27aad403e881a89314

2 files changed, 14 insertions, 1 deletions

diff --git a/java/src/com/android/inputmethod/latin/BinaryDictionaryGetter.java b/java/src/com/android/inputmethod/latin/BinaryDictionaryGetter.java
index 294312843..ddd72f18e 100644
--- a/java/src/com/android/inputmethod/latin/BinaryDictionaryGetter.java
+++ b/java/src/com/android/inputmethod/latin/BinaryDictionaryGetter.java
@@ -72,10 +72,16 @@ final class BinaryDictionaryGetter {
     public static String getTempFileName(final String id, final Context context)
             throws IOException {
         final String safeId = DictionaryInfoUtils.replaceFileNameDangerousCharacters(id);
+        final File directory = new File(DictionaryInfoUtils.getWordListTempDirectory(context));
+        if (!directory.exists()) {
+            if (!directory.mkdirs()) {
+                Log.e(TAG, "Could not create the temporary directory");
+            }
+        }
         // If the first argument is less than three chars, createTempFile throws a
         // RuntimeException. We don't really care about what name we get, so just
         // put a three-chars prefix makes us safe.
-        return File.createTempFile("xxx" + safeId, null).getAbsolutePath();
+        return File.createTempFile("xxx" + safeId, null, directory).getAbsolutePath();
     }
 
     /**
diff --git a/java/src/com/android/inputmethod/latin/DictionaryInfoUtils.java b/java/src/com/android/inputmethod/latin/DictionaryInfoUtils.java
index dcfa483f8..df7bad8d0 100644
--- a/java/src/com/android/inputmethod/latin/DictionaryInfoUtils.java
+++ b/java/src/com/android/inputmethod/latin/DictionaryInfoUtils.java
@@ -129,6 +129,13 @@ public class DictionaryInfoUtils {
     }
 
     /**
+     * Helper method to get the top level temp directory.
+     */
+    public static String getWordListTempDirectory(final Context context) {
+        return context.getFilesDir() + File.separator + "tmp";
+    }
+
+    /**
      * Reverse escaping done by replaceFileNameDangerousCharacters.
      */
     public static String getWordListIdFromFileName(final String fname) {