| 1 | /* |
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| 2 | This file is part of KFileMetaData |
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| 3 | SPDX-FileCopyrightText: 2019 Stefan Brüns <stefan.bruens@rwth-aachen.de> |
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| 4 | |
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| 5 | SPDX-License-Identifier: LGPL-2.1-or-later |
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| 6 | */ |
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| 7 | |
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| 8 | #include "mimeutils.h" |
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| 9 | |
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| 10 | namespace KFileMetaData { |
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| 11 | namespace MimeUtils { |
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| 12 | |
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| 13 | QMimeType strictMimeType(const QString& filePath, const QMimeDatabase& db) |
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| 14 | { |
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| 15 | auto extensionMimes = db.mimeTypesForFileName(fileName: filePath); |
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| 16 | auto contentMime = db.mimeTypeForFile(fileName: filePath, mode: QMimeDatabase::MatchContent); |
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| 17 | |
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| 18 | if (extensionMimes.contains(t: contentMime)) { |
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| 19 | // content based mime type is one of the types for the file extension, e.g.: |
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| 20 | // *.ogg -> [ audio/ogg, audio/x-vorbis+ogg, ...] |
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| 21 | // content -> audio/x-vorbis+ogg |
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| 22 | return contentMime; |
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| 23 | } |
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| 24 | |
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| 25 | for (const auto &mime : extensionMimes) { |
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| 26 | // check if the content is generic and the extension is more specific, e.g.: |
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| 27 | // *.mkv -> [ video/matroska ] |
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| 28 | // content -> application/matroska |
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| 29 | if (mime.inherits(mimeTypeName: contentMime.name())) { |
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| 30 | return mime; |
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| 31 | } |
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| 32 | } |
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| 33 | // content mime type does not match the extension, trust the content |
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| 34 | return contentMime; |
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| 35 | } |
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| 36 | |
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| 37 | }} // namespace KFileMetaData::MimeUtils |
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| 38 | |
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