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Code Issues Releases Wiki Activity

Added some defensive code to prevent crashes caused by the LocalStore getting in a bad state due to issue 1205 (still being worked on). This fixes issue 1214.

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This commit is contained in:
Bao-Long Nguyen-Trong 2010-02-11 21:16:37 +00:00
parent 8d8233bcc0
commit 6fe2dad5cc
1 changed files with 83 additions and 58 deletions
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141
src/com/fsck/k9/mail/store/LocalStore.java
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@ -269,7 +269,7 @@ public class LocalStore extends Store implements Serializable
long attachmentLength = 0;
attachmentLength =+ getSize(mInternalAttachmentsDir);
if (useExternalAttachmentDir())
if (usesExternalAttachmentDir())
{
attachmentLength =+ getSize(mExternalAttachmentsDir);
}
@ -283,11 +283,18 @@ public class LocalStore extends Store implements Serializable
long attachmentLength = 0;
File[] files = attachmentsDir.listFiles();
for (File file : files)
if (files==null)
{
if (file.exists())
Log.w(K9.LOG_TAG, "Unable to list files: " + attachmentsDir.getAbsolutePath());
}
else
{
for (File file : files)
{
attachmentLength += file.length();
if (file.exists())
{
attachmentLength += file.length();
}
}
}
@ -422,7 +429,7 @@ public class LocalStore extends Store implements Serializable
}
delete(mInternalAttachmentsDir);
if (useExternalAttachmentDir())
if (usesExternalAttachmentDir())
{
delete(mExternalAttachmentsDir);
}
@ -440,16 +447,23 @@ public class LocalStore extends Store implements Serializable
private void delete(File attachmentsDir) {
try {
File[] attachments = attachmentsDir.listFiles();
for (File attachment : attachments)
if (attachments==null)
{
if (attachment.exists())
{
attachment.delete();
}
Log.w(K9.LOG_TAG, "Unable to list files: " + attachmentsDir.getAbsolutePath());
}
if (attachmentsDir.exists())
else
{
attachmentsDir.delete();
for (File attachment : attachments)
{
if (attachment.exists())
{
attachment.delete();
}
}
if (attachmentsDir.exists())
{
attachmentsDir.delete();
}
}
}
catch (Exception e)
@ -472,7 +486,7 @@ public class LocalStore extends Store implements Serializable
mDb.update("attachments", cv, null, null);
}
pruneCachedAttachments(force, mInternalAttachmentsDir);
if (useExternalAttachmentDir())
if (usesExternalAttachmentDir())
{
pruneCachedAttachments(force, mExternalAttachmentsDir);
}
@ -483,64 +497,71 @@ public class LocalStore extends Store implements Serializable
*/
private void pruneCachedAttachments(boolean force, File attachmentsDir) throws MessagingException
{
File[] files = attachmentsDir.listFiles();
for (File file : files)
File[] files = attachmentsDir.listFiles();
if (files==null)
{
if (file.exists())
Log.w(K9.LOG_TAG, "Unable to list files: " + attachmentsDir.getAbsolutePath());
}
else
{
for (File file : files)
{
if (!force)
if (file.exists())
{
Cursor cursor = null;
try
if (!force)
{
cursor = mDb.query(
"attachments",
new String[] { "store_data" },
"id = ?",
new String[] { file.getName() },
null,
null,
null);
if (cursor.moveToNext())
Cursor cursor = null;
try
{
if (cursor.getString(0) == null)
cursor = mDb.query(
"attachments",
new String[] { "store_data" },
"id = ?",
new String[] { file.getName() },
null,
null,
null);
if (cursor.moveToNext())
{
Log.d(K9.LOG_TAG, "Attachment " + file.getAbsolutePath() + " has no store data, not deleting");
/*
* If the attachment has no store data it is not recoverable, so
* we won't delete it.
*/
continue;
if (cursor.getString(0) == null)
{
Log.d(K9.LOG_TAG, "Attachment " + file.getAbsolutePath() + " has no store data, not deleting");
/*
* If the attachment has no store data it is not recoverable, so
* we won't delete it.
*/
continue;
}
}
}
finally
{
if (cursor != null)
{
cursor.close();
}
}
}
finally
if (!force)
{
if (cursor != null)
try
{
cursor.close();
ContentValues cv = new ContentValues();
cv.putNull("content_uri");
mDb.update("attachments", cv, "id = ?", new String[] { file.getName() });
}
catch (Exception e)
{
/*
* If the row has gone away before we got to mark it not-downloaded that's
* okay.
*/
}
}
}
if (!force)
{
try
if (!file.delete())
{
ContentValues cv = new ContentValues();
cv.putNull("content_uri");
mDb.update("attachments", cv, "id = ?", new String[] { file.getName() });
file.deleteOnExit();
}
catch (Exception e)
{
/*
* If the row has gone away before we got to mark it not-downloaded that's
* okay.
*/
}
}
if (!file.delete())
{
file.deleteOnExit();
}
}
}
@ -2603,8 +2624,12 @@ public class LocalStore extends Store implements Serializable
private File getAttachmentsDir()
{
if (useExternalAttachmentDir())
if (usesExternalAttachmentDir())
{
if (!mExternalAttachmentsDir.exists())
{
mExternalAttachmentsDir.mkdirs();
}
return mExternalAttachmentsDir;
}
else {
@ -2612,7 +2637,7 @@ public class LocalStore extends Store implements Serializable
}
}
private boolean useExternalAttachmentDir()
private boolean usesExternalAttachmentDir()
{
if (mAccount.isStoreAttachmentOnSdCard()) {
if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED))