daniel156161
ed62837f6d
Build and Push Docker Container / build-and-push (push) Successful in 1m36s
- Add structured URL codec with compact alphabets and dictionary support. - Add public decode, redirect, and QR endpoints for composed links. - Add authenticated encode API and link composer UI. - Generate PNG QR codes via qrcode with Pillow support. - Register the new blueprint and navigation entry. - Cover public decode, auth gating, redirect URL parsing, and QR output. - Bump NanoShare to 1.27.0 and lock new dependencies.
49 lines
1.4 KiB
Python
49 lines
1.4 KiB
Python
class BitWriter:
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def __init__(self) -> None:
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self._bits: list[int] = []
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@property
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def bit_length(self) -> int:
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return len(self._bits)
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def write(self, value: int, width: int) -> None:
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if width < 0:
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raise ValueError("width must be positive")
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if value < 0 or value >= (1 << width):
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raise ValueError(f"value {value} does not fit in {width} bits")
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for shift in range(width - 1, -1, -1):
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self._bits.append((value >> shift) & 1)
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def to_bytes(self) -> bytes:
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padding = (-len(self._bits)) % 8
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bits = self._bits + [0] * padding
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out = bytearray()
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for i in range(0, len(bits), 8):
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byte = 0
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for bit in bits[i : i + 8]:
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byte = (byte << 1) | bit
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out.append(byte)
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return bytes(out)
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class BitReader:
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def __init__(self, data: bytes, bit_length: int) -> None:
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self._bits: list[int] = []
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for byte in data:
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for shift in range(7, -1, -1):
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self._bits.append((byte >> shift) & 1)
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self._bits = self._bits[:bit_length]
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self._pos = 0
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def read(self, width: int) -> int:
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if self._pos + width > len(self._bits):
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raise ValueError("payload ended unexpectedly")
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value = 0
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for bit in self._bits[self._pos : self._pos + width]:
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value = (value << 1) | bit
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self._pos += width
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return value
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@property
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def remaining(self) -> int:
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return len(self._bits) - self._pos
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