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Factor out MIME type detection

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Factor out the MIME type detection logic, so that we can use it both in
Qubes and containers.
This commit is contained in:
Alex Pyrgiotis 2023-08-03 17:34:24 +03:00 committed by deeplow
parent 03df60db5f
commit 6736fb0153
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GPG key ID: 577982871529A52A
1 changed files with 15 additions and 6 deletions
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21
dangerzone/conversion/doc_to_pixels.py
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@ -134,11 +134,7 @@ class DocumentToPixels(DangerzoneConverter):
}
# Detect MIME type
try:
mime = magic.Magic(mime=True)
mime_type = mime.from_file("/tmp/input_file")
except TypeError:
mime_type = magic.detect_from_filename("/tmp/input_file").mime_type
mime_type = self.detect_mime_type("/tmp/input_file")
# Validate MIME type
if mime_type not in conversions:
@ -147,7 +143,7 @@ class DocumentToPixels(DangerzoneConverter):
# Temporary fix for the HWPX format
# Should be removed after new release of `file' (current release 5.44)
if mime_type == "application/zip":
file_type = magic.from_file("/tmp/input_file")
file_type = self.detect_mime_type("/tmp/input_file")
hwpx_file_type = 'Zip data (MIME type "application/hwp+zip"?)'
if file_type == hwpx_file_type:
mime_type = "application/x-hwp+zip"
@ -342,6 +338,19 @@ class DocumentToPixels(DangerzoneConverter):
timeout=5,
)
def detect_mime_type(self, path: str) -> str:
"""Detect MIME types in a platform-agnostic type.
Detect the MIME type of a file, either on Qubes or container platforms.
"""
try:
mime = magic.Magic(mime=True)
mime_type = mime.from_file("/tmp/input_file")
except TypeError:
mime_type = magic.detect_from_filename("/tmp/input_file").mime_type
return mime_type
async def main() -> int:
converter = DocumentToPixels()