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LibCore: Share the mime-type list between the two detection methods
We used to have two separate lists for mime-type detection, one for detection based on the file extension, and the other one for detection based on byte sniffing. This list also contains a general description that will be of use in `file.cpp`. To create this list, I had to fill in some gaps as the two lists started to diverge.
This commit is contained in:
Lucas CHOLLET
Sam Atkins
parent
e3f65f215d
commit
c543a13835
Notes:
sideshowbarker
2024-07-17 02:35:27 +09:00
Author: https://github.com/LucasChollet Commit: https://github.com/SerenityOS/serenity/commit/c543a13835 Pull-request: https://github.com/SerenityOS/serenity/pull/19957 Reviewed-by: https://github.com/AtkinsSJ Reviewed-by: https://github.com/MacDue Reviewed-by: https://github.com/alimpfard Reviewed-by: https://github.com/gmta Reviewed-by: https://github.com/vkoskiv
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@ -54,7 +54,9 @@ void MimeData::set_text(DeprecatedString const& text)
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set_data("text/plain", text.to_byte_buffer());
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}
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static AK::Array<StringView, 8> s_plaintext_suffixes = {
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// FIXME: Share this, TextEditor and HackStudio language detection somehow.
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static Array constexpr s_plaintext_suffixes = {
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// Extensions
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".c"sv,
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".cpp"sv,
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".gml"sv,
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@ -62,156 +64,105 @@ static AK::Array<StringView, 8> s_plaintext_suffixes = {
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".hpp"sv,
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".ini"sv,
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".ipc"sv,
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".txt"sv
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};
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".txt"sv,
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static AK::Array<StringView, 3> s_plaintext_basenames = {
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// Base names
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".history"sv,
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".shellrc"sv
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"CMakeLists.txt"sv,
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};
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// FIXME: Share this, TextEditor and HackStudio language detection somehow.
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static bool should_contain_plain_text_based_on_filename(StringView path)
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{
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for (auto suffix : s_plaintext_suffixes) {
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if (path.ends_with(suffix))
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return true;
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}
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return s_plaintext_basenames.contains_slow(LexicalPath::basename(path));
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}
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static Array const s_registered_mime_type = {
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MimeType { .name = "application/gzip"sv, .common_extensions = { ".gz"sv, ".gzip"sv }, .description = "GZIP compressed data"sv, .magic_bytes = Vector<u8> { 0x1F, 0x8B } },
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MimeType { .name = "application/javascript"sv, .common_extensions = { ".js"sv }, .description = "JavaScript source"sv },
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MimeType { .name = "application/json"sv, .common_extensions = { ".json"sv }, .description = "JSON data"sv },
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MimeType { .name = "application/pdf"sv, .common_extensions = { ".pdf"sv }, .description = "PDF document"sv, .magic_bytes = Vector<u8> { 0x25, 'P', 'D', 'F', 0x2D } },
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MimeType { .name = "application/rtf"sv, .common_extensions = { ".rtf"sv }, .description = "Rich text file"sv, .magic_bytes = Vector<u8> { 0x7B, 0x5C, 0x72, 0x74, 0x66, 0x31 } },
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MimeType { .name = "application/tar"sv, .common_extensions = { ".tar"sv }, .description = "Tape archive"sv, .magic_bytes = Vector<u8> { 0x75, 0x73, 0x74, 0x61, 0x72 }, .offset = 0x101 },
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MimeType { .name = "application/vnd.iccprofile"sv, .common_extensions = { ".icc"sv }, .description = "ICC color profile"sv, .magic_bytes = Vector<u8> { 'a', 'c', 's', 'p' }, .offset = 36 },
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MimeType { .name = "application/vnd.sqlite3"sv, .common_extensions = { ".sqlite"sv }, .description = "SQLite database"sv, .magic_bytes = Vector<u8> { 'S', 'Q', 'L', 'i', 't', 'e', ' ', 'f', 'o', 'r', 'm', 'a', 't', ' ', '3', 0x00 } },
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MimeType { .name = "application/wasm"sv, .common_extensions = { ".wasm"sv }, .description = "WebAssembly bytecode"sv, .magic_bytes = Vector<u8> { 0x00, 'a', 's', 'm' } },
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MimeType { .name = "application/x-7z-compressed"sv, .common_extensions = { "7z"sv }, .description = "7-Zip archive"sv, .magic_bytes = Vector<u8> { 0x37, 0x7A, 0xBC, 0xAF, 0x27, 0x1C } },
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MimeType { .name = "application/x-blender"sv, .common_extensions = { ".blend"sv, ".blended"sv }, .description = "Blender project file"sv, .magic_bytes = Vector<u8> { 'B', 'L', 'E', 'N', 'D', 'E', 'R' } },
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MimeType { .name = "application/x-bzip2"sv, .common_extensions = { ".bz2"sv }, .description = "BZIP2 compressed data"sv, .magic_bytes = Vector<u8> { 'B', 'Z', 'h' } },
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MimeType { .name = "application/x-sheets+json"sv, .common_extensions = { ".sheets"sv }, .description = "Serenity Spreadsheet document"sv },
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MimeType { .name = "application/zip"sv, .common_extensions = { ".zip"sv }, .description = "ZIP archive"sv, .magic_bytes = Vector<u8> { 0x50, 0x4B } },
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MimeType { .name = "audio/flac"sv, .common_extensions = { ".flac"sv }, .description = "FLAC audio"sv, .magic_bytes = Vector<u8> { 'f', 'L', 'a', 'C' } },
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MimeType { .name = "audio/midi"sv, .common_extensions = { ".mid"sv }, .description = "MIDI notes"sv, .magic_bytes = Vector<u8> { 0x4D, 0x54, 0x68, 0x64 } },
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MimeType { .name = "audio/mpeg"sv, .common_extensions = { ".mp3"sv }, .description = "MP3 audio"sv, .magic_bytes = Vector<u8> { 0xFF, 0xFB } },
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MimeType { .name = "audio/qoa"sv, .common_extensions = { ".qoa"sv }, .description = "Quite OK Audio"sv, .magic_bytes = Vector<u8> { 'q', 'o', 'a', 'f' } },
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MimeType { .name = "audio/wav"sv, .common_extensions = { ".wav"sv }, .description = "WAVE audio"sv, .magic_bytes = Vector<u8> { 'W', 'A', 'V', 'E' }, .offset = 8 },
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MimeType { .name = "extra/elf"sv, .common_extensions = { ".elf"sv }, .description = "ELF"sv, .magic_bytes = Vector<u8> { 0x7F, 'E', 'L', 'F' } },
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MimeType { .name = "extra/ext"sv, .description = "EXT filesystem"sv, .magic_bytes = Vector<u8> { 0x53, 0xEF }, .offset = 0x438 },
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MimeType { .name = "extra/iso-9660"sv, .common_extensions = { ".iso"sv }, .description = "ISO 9660 CD/DVD image"sv, .magic_bytes = Vector<u8> { 0x43, 0x44, 0x30, 0x30, 0x31 }, .offset = 0x8001 },
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MimeType { .name = "extra/iso-9660"sv, .common_extensions = { ".iso"sv }, .description = "ISO 9660 CD/DVD image"sv, .magic_bytes = Vector<u8> { 0x43, 0x44, 0x30, 0x30, 0x31 }, .offset = 0x8801 },
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MimeType { .name = "extra/iso-9660"sv, .common_extensions = { ".iso"sv }, .description = "ISO 9660 CD/DVD image"sv, .magic_bytes = Vector<u8> { 0x43, 0x44, 0x30, 0x30, 0x31 }, .offset = 0x9001 },
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MimeType { .name = "extra/isz"sv, .common_extensions = { ".isz"sv }, .description = "Compressed ISO image"sv, .magic_bytes = Vector<u8> { 'I', 's', 'Z', '!' } },
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MimeType { .name = "extra/lua-bytecode"sv, .description = "Lua bytecode"sv, .magic_bytes = Vector<u8> { 0x1B, 'L', 'u', 'a' } },
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MimeType { .name = "extra/nes-rom"sv, .common_extensions = { ".nes"sv }, .description = "Nintendo Entertainment System ROM"sv, .magic_bytes = Vector<u8> { 'N', 'E', 'S', 0x1A } },
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MimeType { .name = "extra/qcow"sv, .common_extensions = { ".qcow"sv, ".qcow2"sv, ".qcow3"sv }, .description = "QCOW file"sv, .magic_bytes = Vector<u8> { 'Q', 'F', 'I' } },
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MimeType { .name = "extra/raw-zlib"sv, .description = "Raw zlib stream"sv, .magic_bytes = Vector<u8> { 0x78, 0x01 } },
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MimeType { .name = "extra/raw-zlib"sv, .description = "Raw zlib stream"sv, .magic_bytes = Vector<u8> { 0x78, 0x5E } },
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MimeType { .name = "extra/raw-zlib"sv, .description = "Raw zlib stream"sv, .magic_bytes = Vector<u8> { 0x78, 0x9C } },
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MimeType { .name = "extra/raw-zlib"sv, .description = "Raw zlib stream"sv, .magic_bytes = Vector<u8> { 0x78, 0xDA } },
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MimeType { .name = "extra/raw-zlib"sv, .description = "Raw zlib stream"sv, .magic_bytes = Vector<u8> { 0x78, 0x20 } },
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MimeType { .name = "extra/raw-zlib"sv, .description = "Raw zlib stream"sv, .magic_bytes = Vector<u8> { 0x78, 0x7D } },
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MimeType { .name = "extra/raw-zlib"sv, .description = "Raw zlib stream"sv, .magic_bytes = Vector<u8> { 0x78, 0xBB } },
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MimeType { .name = "extra/raw-zlib"sv, .description = "Raw zlib stream"sv, .magic_bytes = Vector<u8> { 0x78, 0xF9 } },
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MimeType { .name = "extra/win-31x-compressed"sv, .description = "Windows 3.1X compressed file"sv, .magic_bytes = Vector<u8> { 'K', 'W', 'A', 'J' } },
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MimeType { .name = "extra/win-95-compressed"sv, .description = "Windows 95 compressed file"sv, .magic_bytes = Vector<u8> { 'S', 'Z', 'D', 'D' } },
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MimeType { .name = "image/bmp"sv, .common_extensions = { ".bmp"sv }, .description = "BMP image data"sv, .magic_bytes = Vector<u8> { 'B', 'M' } },
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MimeType { .name = "image/gif"sv, .common_extensions = { ".gif"sv }, .description = "GIF image data"sv, .magic_bytes = Vector<u8> { 'G', 'I', 'F', '8', '7', 'a' } },
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MimeType { .name = "image/gif"sv, .common_extensions = { ".gif"sv }, .description = "GIF image data"sv, .magic_bytes = Vector<u8> { 'G', 'I', 'F', '8', '9', 'a' } },
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MimeType { .name = "image/jpeg"sv, .common_extensions = { ".jpg"sv, ".jpeg"sv }, .description = "JPEG image data"sv, .magic_bytes = Vector<u8> { 0xFF, 0xD8, 0xFF } },
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MimeType { .name = "image/png"sv, .common_extensions = { ".png"sv }, .description = "PNG image data"sv, .magic_bytes = Vector<u8> { 0x89, 'P', 'N', 'G', 0x0D, 0x0A, 0x1A, 0x0A } },
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MimeType { .name = "image/svg+xml"sv, .common_extensions = { ".svg"sv }, .description = "Scalable Vector Graphics image"sv },
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MimeType { .name = "image/tiff"sv, .common_extensions = { ".tiff"sv }, .description = "TIFF image data"sv, .magic_bytes = Vector<u8> { 'I', 'I', '*', 0x00 } },
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MimeType { .name = "image/tiff"sv, .common_extensions = { ".tiff"sv }, .description = "TIFF image data"sv, .magic_bytes = Vector<u8> { 'M', 'M', 0x00, '*' } },
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MimeType { .name = "image/tinyvg"sv, .common_extensions = { ".tvg"sv }, .description = "TinyVG vector graphics"sv, .magic_bytes = Vector<u8> { 0x72, 0x56 } },
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MimeType { .name = "image/webp"sv, .common_extensions = { ".webp"sv }, .description = "WebP image data"sv, .magic_bytes = Vector<u8> { 'W', 'E', 'B', 'P' }, .offset = 8 },
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MimeType { .name = "image/x-portable-bitmap"sv, .common_extensions = { ".pbm"sv }, .description = "PBM image data"sv, .magic_bytes = Vector<u8> { 0x50, 0x31, 0x0A } },
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MimeType { .name = "image/x-portable-graymap"sv, .common_extensions = { ".pgm"sv }, .description = "PGM image data"sv, .magic_bytes = Vector<u8> { 0x50, 0x32, 0x0A } },
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MimeType { .name = "image/x-portable-pixmap"sv, .common_extensions = { ".ppm"sv }, .description = "PPM image data"sv, .magic_bytes = Vector<u8> { 0x50, 0x33, 0x0A } },
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MimeType { .name = "image/x-qoi"sv, .common_extensions = { ".qoi"sv }, .description = "QOI image data"sv, .magic_bytes = Vector<u8> { 'q', 'o', 'i', 'f' } },
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MimeType { .name = "image/x-targa"sv, .common_extensions = { ".tga"sv }, .description = "Targa image data"sv },
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MimeType { .name = "text/css"sv, .common_extensions = { ".css"sv }, .description = "Cascading Style Sheet"sv },
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MimeType { .name = "text/csv"sv, .common_extensions = { ".csv"sv }, .description = "CSV text"sv },
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MimeType { .name = "text/html"sv, .common_extensions = { ".html"sv, ".htm"sv, "/"sv }, .description = "HTML document"sv }, // FIXME: The "/" seems dubious
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MimeType { .name = "text/markdown"sv, .common_extensions = { ".md"sv }, .description = "Markdown document"sv },
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MimeType { .name = "text/plain"sv, .common_extensions = Vector(s_plaintext_suffixes.span()), .description = "plain text"sv },
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MimeType { .name = "text/x-shellscript"sv, .common_extensions = { ".sh"sv }, .description = "POSIX shell script text executable"sv, .magic_bytes = Vector<u8> { '#', '!', '/', 'b', 'i', 'n', '/', 's', 'h', '\n' } },
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MimeType { .name = "video/matroska"sv, .common_extensions = { ".mkv"sv }, .description = "Matroska container"sv, .magic_bytes = Vector<u8> { 0x1A, 0x45, 0xDF, 0xA3 } },
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MimeType { .name = "video/webm"sv, .common_extensions = { ".webm"sv }, .description = "WebM video"sv },
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};
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StringView guess_mime_type_based_on_filename(StringView path)
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{
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if (path.ends_with(".js"sv, CaseSensitivity::CaseInsensitive))
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return "application/javascript"sv;
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if (path.ends_with(".json"sv, CaseSensitivity::CaseInsensitive))
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return "application/json"sv;
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if (path.ends_with(".icc"sv, CaseSensitivity::CaseInsensitive) || path.ends_with(".icm"sv, CaseSensitivity::CaseInsensitive))
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return "application/vnd.iccprofile"sv;
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if (path.ends_with(".sheets"sv, CaseSensitivity::CaseInsensitive))
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return "application/x-sheets+json"sv;
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if (path.ends_with(".zip"sv, CaseSensitivity::CaseInsensitive))
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return "application/zip"sv;
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if (path.ends_with(".flac"sv, CaseSensitivity::CaseInsensitive))
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return "audio/flac"sv;
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if (path.ends_with(".mid"sv, CaseSensitivity::CaseInsensitive) || path.ends_with(".midi"sv, CaseSensitivity::CaseInsensitive))
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return "audio/midi"sv;
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if (path.ends_with(".mp3"sv, CaseSensitivity::CaseInsensitive))
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return "audio/mpeg"sv;
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if (path.ends_with(".qoa"sv, CaseSensitivity::CaseInsensitive))
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return "audio/qoa"sv;
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if (path.ends_with(".wav"sv, CaseSensitivity::CaseInsensitive))
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return "audio/wav"sv;
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if (path.ends_with(".bmp"sv, CaseSensitivity::CaseInsensitive))
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return "image/bmp"sv;
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if (path.ends_with(".gif"sv, CaseSensitivity::CaseInsensitive))
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return "image/gif"sv;
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if (path.ends_with(".jpg"sv, CaseSensitivity::CaseInsensitive) || path.ends_with(".jpeg"sv, CaseSensitivity::CaseInsensitive))
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return "image/jpeg"sv;
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if (path.ends_with(".png"sv, CaseSensitivity::CaseInsensitive))
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return "image/png"sv;
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if (path.ends_with(".svg"sv, CaseSensitivity::CaseInsensitive))
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return "image/svg+xml"sv;
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if (path.ends_with(".tvg"sv, CaseSensitivity::CaseInsensitive))
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return "image/tinyvg"sv;
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if (path.ends_with(".webp"sv, CaseSensitivity::CaseInsensitive))
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return "image/webp"sv;
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if (path.ends_with(".pbm"sv, CaseSensitivity::CaseInsensitive))
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return "image/x-portable-bitmap"sv;
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if (path.ends_with(".pgm"sv, CaseSensitivity::CaseInsensitive))
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return "image/x-portable-graymap"sv;
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if (path.ends_with(".ppm"sv, CaseSensitivity::CaseInsensitive))
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return "image/x-portable-pixmap"sv;
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if (path.ends_with(".qoi"sv, CaseSensitivity::CaseInsensitive))
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return "image/x-qoi"sv;
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if (path.ends_with(".tga"sv, CaseSensitivity::CaseInsensitive))
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return "image/x-targa"sv;
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if (path.ends_with(".css"sv, CaseSensitivity::CaseInsensitive))
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return "text/css"sv;
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if (path.ends_with(".csv"sv, CaseSensitivity::CaseInsensitive))
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return "text/csv"sv;
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if (path.ends_with(".html"sv, CaseSensitivity::CaseInsensitive) || path.ends_with(".htm"sv, CaseSensitivity::CaseInsensitive))
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return "text/html"sv;
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if (path.ends_with("/"sv, CaseSensitivity::CaseInsensitive)) // FIXME: This seems dubious
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return "text/html"sv;
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if (path.ends_with(".md"sv, CaseSensitivity::CaseInsensitive))
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return "text/markdown"sv;
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if (should_contain_plain_text_based_on_filename(path))
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return "text/plain"sv;
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if (path.ends_with(".webm"sv, CaseSensitivity::CaseInsensitive))
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return "video/webm"sv;
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for (auto const& mime_type : s_registered_mime_type) {
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for (auto const possible_extension : mime_type.common_extensions) {
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if (path.ends_with(possible_extension))
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return mime_type.name;
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}
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}
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return "application/octet-stream"sv;
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}
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#define ENUMERATE_HEADER_CONTENTS \
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__ENUMERATE_MIME_TYPE_HEADER("application/gzip"sv, gzip, 0, 2, 0x1F, 0x8B) \
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__ENUMERATE_MIME_TYPE_HEADER("application/pdf"sv, pdf, 0, 5, 0x25, 'P', 'D', 'F', 0x2D) \
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__ENUMERATE_MIME_TYPE_HEADER("application/rtf"sv, rtf, 0, 6, 0x7B, 0x5C, 0x72, 0x74, 0x66, 0x31) \
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__ENUMERATE_MIME_TYPE_HEADER("application/tar"sv, tar, 0x101, 5, 0x75, 0x73, 0x74, 0x61, 0x72) \
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__ENUMERATE_MIME_TYPE_HEADER("application/vnd.iccprofile"sv, icc, 36, 4, 'a', 'c', 's', 'p') \
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__ENUMERATE_MIME_TYPE_HEADER("application/wasm"sv, wasm, 0, 4, 0x00, 'a', 's', 'm') \
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__ENUMERATE_MIME_TYPE_HEADER("application/x-7z-compressed"sv, sevenzip, 0, 6, 0x37, 0x7A, 0xBC, 0xAF, 0x27, 0x1C) \
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__ENUMERATE_MIME_TYPE_HEADER("application/x-bzip2"sv, bzip2, 0, 3, 'B', 'Z', 'h') \
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__ENUMERATE_MIME_TYPE_HEADER("application/zip"sv, zip, 0, 2, 0x50, 0x4B) \
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__ENUMERATE_MIME_TYPE_HEADER("audio/flac"sv, flac, 0, 4, 'f', 'L', 'a', 'C') \
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__ENUMERATE_MIME_TYPE_HEADER("audio/midi"sv, midi, 0, 4, 0x4D, 0x54, 0x68, 0x64) \
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__ENUMERATE_MIME_TYPE_HEADER("audio/mpeg"sv, mp3, 0, 2, 0xFF, 0xFB) \
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__ENUMERATE_MIME_TYPE_HEADER("audio/qoa"sv, qoa, 0, 4, 'q', 'o', 'a', 'f') \
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__ENUMERATE_MIME_TYPE_HEADER("audio/wav"sv, wav, 8, 4, 'W', 'A', 'V', 'E') \
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__ENUMERATE_MIME_TYPE_HEADER("extra/blender"sv, blend, 0, 7, 'B', 'L', 'E', 'N', 'D', 'E', 'R') \
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__ENUMERATE_MIME_TYPE_HEADER("extra/elf"sv, elf, 0, 4, 0x7F, 'E', 'L', 'F') \
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__ENUMERATE_MIME_TYPE_HEADER("extra/ext"sv, ext, 0x438, 2, 0x53, 0xEF) \
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__ENUMERATE_MIME_TYPE_HEADER("extra/iso-9660"sv, iso9660_0, 0x8001, 5, 0x43, 0x44, 0x30, 0x30, 0x31) \
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__ENUMERATE_MIME_TYPE_HEADER("extra/iso-9660"sv, iso9660_1, 0x8801, 5, 0x43, 0x44, 0x30, 0x30, 0x31) \
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__ENUMERATE_MIME_TYPE_HEADER("extra/iso-9660"sv, iso9660_2, 0x9001, 5, 0x43, 0x44, 0x30, 0x30, 0x31) \
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__ENUMERATE_MIME_TYPE_HEADER("extra/isz"sv, compressed_iso, 0, 4, 'I', 's', 'Z', '!') \
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__ENUMERATE_MIME_TYPE_HEADER("extra/lua-bytecode"sv, lua_bytecode, 0, 4, 0x1B, 'L', 'u', 'a') \
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__ENUMERATE_MIME_TYPE_HEADER("extra/matroska"sv, mkv, 0, 4, 0x1A, 0x45, 0xDF, 0xA3) \
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__ENUMERATE_MIME_TYPE_HEADER("extra/nes-rom"sv, nesrom, 0, 4, 'N', 'E', 'S', 0x1A) \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("extra/qcow"sv, qcow, 0, 3, 'Q', 'F', 'I') \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("extra/raw-zlib"sv, zlib_0, 0, 2, 0x78, 0x01) \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("extra/raw-zlib"sv, zlib_1, 0, 2, 0x78, 0x5E) \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("extra/raw-zlib"sv, zlib_2, 0, 2, 0x78, 0x9C) \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("extra/raw-zlib"sv, zlib_3, 0, 2, 0x78, 0xDA) \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("extra/raw-zlib"sv, zlib_4, 0, 2, 0x78, 0x20) \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("extra/raw-zlib"sv, zlib_5, 0, 2, 0x78, 0x7D) \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("extra/raw-zlib"sv, zlib_6, 0, 2, 0x78, 0xBB) \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("extra/raw-zlib"sv, zlib_7, 0, 2, 0x78, 0xF9) \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("extra/sqlite"sv, sqlite, 0, 16, 'S', 'Q', 'L', 'i', 't', 'e', ' ', 'f', 'o', 'r', 'm', 'a', 't', ' ', '3', 0x00) \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("extra/win-31x-compressed"sv, win_31x_archive, 0, 4, 'K', 'W', 'A', 'J') \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("extra/win-95-compressed"sv, win_95_archive, 0, 4, 'S', 'Z', 'D', 'D') \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("image/bmp"sv, bmp, 0, 2, 'B', 'M') \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("image/gif"sv, gif_87, 0, 6, 'G', 'I', 'F', '8', '7', 'a') \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("image/gif"sv, gif_89, 0, 6, 'G', 'I', 'F', '8', '9', 'a') \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("image/jpeg"sv, jpeg, 0, 4, 0xFF, 0xD8, 0xFF, 0xDB) \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("image/jpeg"sv, jpeg_huh, 0, 4, 0xFF, 0xD8, 0xFF, 0xEE) \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("image/jpeg"sv, jpeg_jfif, 0, 12, 0xFF, 0xD8, 0xFF, 0xE0, 0x00, 0x10, 'J', 'F', 'I', 'F', 0x00, 0x01) \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("image/png"sv, png, 0, 8, 0x89, 'P', 'N', 'G', 0x0D, 0x0A, 0x1A, 0x0A) \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("image/tiff"sv, tiff, 0, 4, 'I', 'I', '*', 0x00) \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("image/tiff"sv, tiff_bigendian, 0, 4, 'M', 'M', 0x00, '*') \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("image/tinyvg"sv, tinyvg, 0, 2, 0x72, 0x56) \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("image/webp"sv, webp, 8, 4, 'W', 'E', 'B', 'P') \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("image/x-portable-bitmap"sv, pbm, 0, 3, 0x50, 0x31, 0x0A) \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("image/x-portable-graymap"sv, pgm, 0, 3, 0x50, 0x32, 0x0A) \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("image/x-portable-pixmap"sv, ppm, 0, 3, 0x50, 0x33, 0x0A) \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("image/x-qoi"sv, qoi, 0, 4, 'q', 'o', 'i', 'f') \
|
||||
__ENUMERATE_MIME_TYPE_HEADER("text/x-shellscript"sv, shell, 0, 10, '#', '!', '/', 'b', 'i', 'n', '/', 's', 'h', '\n')
|
||||
|
||||
#define __ENUMERATE_MIME_TYPE_HEADER(mime_type, var_name, pattern_offset, pattern_size, ...) \
|
||||
static const u8 var_name##_arr[pattern_size] = { __VA_ARGS__ }; \
|
||||
static constexpr ReadonlyBytes var_name = ReadonlyBytes { var_name##_arr, pattern_size };
|
||||
ENUMERATE_HEADER_CONTENTS
|
||||
#undef __ENUMERATE_MIME_TYPE_HEADER
|
||||
|
||||
Optional<StringView> guess_mime_type_based_on_sniffed_bytes(ReadonlyBytes bytes)
|
||||
{
|
||||
#define __ENUMERATE_MIME_TYPE_HEADER(mime_type, var_name, pattern_offset, pattern_size, ...) \
|
||||
if (static_cast<ssize_t>(bytes.size()) >= pattern_offset && bytes.slice(pattern_offset).starts_with(var_name)) \
|
||||
return mime_type;
|
||||
ENUMERATE_HEADER_CONTENTS;
|
||||
#undef __ENUMERATE_MIME_TYPE_HEADER
|
||||
for (auto const& mime_type : s_registered_mime_type) {
|
||||
if (mime_type.magic_bytes.has_value()
|
||||
&& bytes.size() >= mime_type.offset
|
||||
&& bytes.slice(mime_type.offset).starts_with(*mime_type.magic_bytes)) {
|
||||
return mime_type.name;
|
||||
}
|
||||
}
|
||||
|
||||
return {};
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -53,4 +53,12 @@ StringView guess_mime_type_based_on_filename(StringView);
|
|||
Optional<StringView> guess_mime_type_based_on_sniffed_bytes(ReadonlyBytes);
|
||||
Optional<StringView> guess_mime_type_based_on_sniffed_bytes(Core::File&);
|
||||
|
||||
struct MimeType {
|
||||
StringView name {};
|
||||
Vector<StringView> common_extensions {};
|
||||
StringView description {};
|
||||
Optional<Vector<u8>> magic_bytes {};
|
||||
u64 offset { 0 };
|
||||
};
|
||||
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue