BayernMessenger/vector/src/main/java/im/vector/riotx/core/intent/VectorMimeType.kt

54 lines
1.6 KiB
Kotlin

/*
* Copyright 2019 New Vector Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package im.vector.riotx.core.intent
import android.content.Context
import android.net.Uri
import android.webkit.MimeTypeMap
import im.vector.riotx.core.utils.getFileExtension
import timber.log.Timber
/**
* Returns the mimetype from a uri.
*
* @param context the context
* @return the mimetype
*/
fun getMimeTypeFromUri(context: Context, uri: Uri): String? {
var mimeType: String? = null
try {
mimeType = context.contentResolver.getType(uri)
// try to find the mimetype from the filename
if (null == mimeType) {
val extension = getFileExtension(uri.toString())
if (extension != null) {
mimeType = MimeTypeMap.getSingleton().getMimeTypeFromExtension(extension)
}
}
if (null != mimeType) {
// the mimetype is sometimes in uppercase.
mimeType = mimeType.toLowerCase()
}
} catch (e: Exception) {
Timber.e(e, "Failed to open resource input stream")
}
return mimeType
}