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fix: correctly handle HTTP suffix-byte-range requests (bytes=-N) #36

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fix: correctly handle HTTP suffix-byte-range requests (bytes=-N) #36

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11 changes: 9 additions & 2 deletions app/services/media_server.py
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Original file line number Diff line number Diff line change
Expand Up @@ -17,11 +17,18 @@ def build_range_response(file_path: str, range_header: str) -> Response:
stat = os.stat(file_path)

# Parse range header: "bytes=start-end"
# Handles both normal ranges (e.g. "bytes=0-1023") and suffix-byte-ranges
# (e.g. "bytes=-500", meaning the last 500 bytes).
range_spec = range_header.replace("bytes=", "").strip()
parts = range_spec.split("-")

start = int(parts[0]) if parts[0] else 0
end = int(parts[1]) if len(parts) > 1 and parts[1] else file_size - 1
if not parts[0] and len(parts) > 1 and parts[1]:
# Suffix-byte-range: bytes=-N means the last N bytes
start = max(0, file_size - int(parts[1]))
end = file_size - 1
else:
start = int(parts[0]) if parts[0] else 0
end = int(parts[1]) if len(parts) > 1 and parts[1] else file_size - 1

# Clamp values
start = max(0, start)
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