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Code Issues Releases Wiki Activity

Merge branch 'mime_type_rewriting'

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This commit is contained in:
cketti 2011-03-25 01:31:27 +01:00
commit c9510f8f16
4 changed files with 78 additions and 46 deletions
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49
src/com/fsck/k9/mail/internet/MimeUtility.java
View File

@ -876,7 +876,14 @@ public class MimeUtility {
{ "zmm", "application/vnd.handheld-entertainment+xml"}
};
/**
* Table for MIME type replacements.
*
* Table format: wrong type, correct type
*/
private static final String[][] MIME_TYPE_REPLACEMENT_MAP = new String[][] {
{"image/jpg", "image/jpeg"}
};
public static String unfold(String s) {
if (s == null) {
@ -1193,6 +1200,46 @@ public class MimeUtility {
return DEFAULT_ATTACHMENT_MIME_TYPE;
}
/**
* Convert some wrong MIME types encountered in the wild to canonical MIME
* types.
*
* @param mimeType The original MIME type
* @return If {@code mimeType} is known to be wrong the correct MIME type
* is returned. Otherwise the value of {@code mimeType} is returned
* unmodified.
*
* @see #MIME_TYPE_REPLACEMENT_MAP
*/
public static String canonicalizeMimeType(String mimeType) {
for (String[] mimeTypeMapEntry : MIME_TYPE_REPLACEMENT_MAP) {
if (mimeTypeMapEntry[0].equals(mimeType)) {
return mimeTypeMapEntry[1];
}
}
return mimeType;
}
/**
* When viewing the attachment we want the MIME type to be as sensible as
* possible. So we fix it up if necessary.
*
* @param mimeType The original MIME type of the attachment.
* @param name The (file)name of the attachment.
*
* @return The best MIME type we can come up with.
*/
public static String getMimeTypeForViewing(String mimeType, String name) {
if (DEFAULT_ATTACHMENT_MIME_TYPE.equalsIgnoreCase(mimeType)) {
// If the MIME type is the generic "application/octet-stream"
// we try to find a better one by looking at the file extension.
return getMimeTypeByExtension(name);
} else {
// Some messages contain wrong MIME types. See if we know better.
return canonicalizeMimeType(mimeType);
}
}
private static Message getMessageFromPart(Part part) {
while (part != null) {
if (part instanceof Message)

38
src/com/fsck/k9/mail/store/LocalStore.java
View File

@ -988,49 +988,18 @@ public class LocalStore extends Store implements Serializable {
}
public String getAttachmentType(final String attachmentId) throws UnavailableStorageException {
return database.execute(false, new DbCallback<String>() {
@Override
public String doDbWork(final SQLiteDatabase db) throws WrappedException {
Cursor cursor = null;
try {
cursor = db.query(
"attachments",
new String[] { "mime_type", "name" },
"id = ?",
new String[] { attachmentId },
null,
null,
null);
cursor.moveToFirst();
String type = cursor.getString(0);
String name = cursor.getString(1);
cursor.close();
if (MimeUtility.DEFAULT_ATTACHMENT_MIME_TYPE.equalsIgnoreCase(type)) {
type = MimeUtility.getMimeTypeByExtension(name);
}
return type;
} finally {
if (cursor != null) {
cursor.close();
}
}
}
});
}
public AttachmentInfo getAttachmentInfo(final String attachmentId) throws UnavailableStorageException {
return database.execute(false, new DbCallback<AttachmentInfo>() {
@Override
public AttachmentInfo doDbWork(final SQLiteDatabase db) throws WrappedException {
String name;
String type;
int size;
Cursor cursor = null;
try {
cursor = db.query(
"attachments",
new String[] { "name", "size" },
new String[] { "name", "size", "mime_type" },
"id = ?",
new String[] { attachmentId },
null,
@ -1041,9 +1010,11 @@ public class LocalStore extends Store implements Serializable {
}
name = cursor.getString(0);
size = cursor.getInt(1);
type = cursor.getString(2);
final AttachmentInfo attachmentInfo = new AttachmentInfo();
attachmentInfo.name = name;
attachmentInfo.size = size;
attachmentInfo.type = type;
return attachmentInfo;
} finally {
if (cursor != null) {
@ -1057,6 +1028,7 @@ public class LocalStore extends Store implements Serializable {
public static class AttachmentInfo {
public String name;
public int size;
public String type;
}
public void createFolders(final List<LocalFolder> foldersToCreate, final int visibleLimit) throws UnavailableStorageException {

28
src/com/fsck/k9/provider/AttachmentProvider.java
View File

@ -30,6 +30,7 @@ public class AttachmentProvider extends ContentProvider {
public static final Uri CONTENT_URI = Uri.parse("content://com.fsck.k9.attachmentprovider");
private static final String FORMAT_RAW = "RAW";
private static final String FORMAT_VIEW = "VIEW";
private static final String FORMAT_THUMBNAIL = "THUMBNAIL";
public static class AttachmentProviderColumns {
@ -40,7 +41,11 @@ public class AttachmentProvider extends ContentProvider {
}
public static Uri getAttachmentUri(Account account, long id) {
return getAttachmentUri(account.getUuid(), id);
return getAttachmentUri(account.getUuid(), id, true);
}
public static Uri getAttachmentUriForViewing(Account account, long id) {
return getAttachmentUri(account.getUuid(), id, false);
}
public static Uri getAttachmentThumbnailUri(Account account, long id, int width, int height) {
@ -53,11 +58,11 @@ public class AttachmentProvider extends ContentProvider {
.build();
}
private static Uri getAttachmentUri(String db, long id) {
private static Uri getAttachmentUri(String db, long id, boolean raw) {
return CONTENT_URI.buildUpon()
.appendPath(db)
.appendPath(Long.toString(id))
.appendPath(FORMAT_RAW)
.appendPath(raw ? FORMAT_RAW : FORMAT_VIEW)
.build();
}
@ -98,6 +103,11 @@ public class AttachmentProvider extends ContentProvider {
String dbName = segments.get(0);
String id = segments.get(1);
String format = segments.get(2);
return getType(dbName, id, format);
}
private String getType(String dbName, String id, String format) {
if (FORMAT_THUMBNAIL.equals(format)) {
return "image/png";
} else {
@ -105,7 +115,14 @@ public class AttachmentProvider extends ContentProvider {
try {
final LocalStore localStore = LocalStore.getLocalInstance(account, K9.app);
return localStore.getAttachmentType(id);
AttachmentInfo attachmentInfo = localStore.getAttachmentInfo(id);
if (FORMAT_VIEW.equals(format)) {
return MimeUtility.getMimeTypeForViewing(attachmentInfo.type, attachmentInfo.name);
} else {
// When accessing the "raw" message we deliver the original MIME type.
return attachmentInfo.type;
}
} catch (MessagingException e) {
Log.e(K9.LOG_TAG, "Unable to retrieve LocalStore for " + account, e);
return null;
@ -148,8 +165,7 @@ public class AttachmentProvider extends ContentProvider {
File dir = getContext().getCacheDir();
File file = new File(dir, filename);
if (!file.exists()) {
Uri attachmentUri = getAttachmentUri(dbName, Long.parseLong(id));
String type = getType(attachmentUri);
String type = getType(dbName, id, FORMAT_VIEW);
try {
FileInputStream in = new FileInputStream(getFile(dbName, id));
try {

9
src/com/fsck/k9/view/AttachmentView.java
View File

@ -78,10 +78,7 @@ public class AttachmentView extends FrameLayout {
mListener = listener;
size = Integer.parseInt(MimeUtility.getHeaderParameter(contentDisposition, "size"));
contentType = part.getMimeType();
if (MimeUtility.DEFAULT_ATTACHMENT_MIME_TYPE.equalsIgnoreCase(contentType)) {
contentType = MimeUtility.getMimeTypeByExtension(name);
}
contentType = MimeUtility.getMimeTypeForViewing(part.getMimeType(), name);
TextView attachmentName = (TextView) findViewById(R.id.attachment_name);
TextView attachmentInfo = (TextView) findViewById(R.id.attachment_info);
ImageView attachmentIcon = (ImageView) findViewById(R.id.attachment_icon);
@ -196,7 +193,7 @@ public class AttachmentView extends FrameLayout {
public void showFile() {
Uri uri = AttachmentProvider.getAttachmentUri(mAccount, part.getAttachmentId());
Uri uri = AttachmentProvider.getAttachmentUriForViewing(mAccount, part.getAttachmentId());
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(uri);
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
@ -227,7 +224,7 @@ public class AttachmentView extends FrameLayout {
return;
}
try {
Uri uri = AttachmentProvider.getAttachmentUri(mAccount, part.getAttachmentId());
Uri uri = AttachmentProvider.getAttachmentUriForViewing(mAccount, part.getAttachmentId());
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setData(uri);
intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);