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# coding=utf-8
#
# Copyright © Cloud Linux GmbH & Cloud Linux Software, Inc 2010-2025 All Rights Reserved
#
# Licensed under CLOUD LINUX LICENSE AGREEMENT
# http://cloudlinux.com/docs/LICENSE.TXT
import os
import subprocess
from typing import Optional
def svg_to_png(svg_data: str) -> bytes:
"""
Converts SVG data to PNG format using available converters.
Args:
svg_data (str): The SVG data to convert.
Returns:
bytes: The converted PNG data.
Raises:
RuntimeError: If no suitable converter is found.
"""
# alt-ImageMagick is preferred over the native ImageMagick and rsvg.
alt_imagemagick = _get_alt_imagemagick_binary()
if alt_imagemagick:
return _convert_with_imagemagick(svg_data, alt_imagemagick)
rsvg_convert = _get_rsvg_convert_binary()
if rsvg_convert:
return _convert_with_rsvg(svg_data, rsvg_convert)
imagemagick = _get_imagemagick_binary()
if imagemagick:
return _convert_with_imagemagick(svg_data, imagemagick)
raise RuntimeError("No suitable SVG to PNG converter found")
def _get_alt_imagemagick_binary() -> Optional[str]:
"""
Returns the path to the alt-ImageMagick binary if it exists, otherwise None.
"""
alt_imagemagick = "/opt/alt/alt-ImageMagick/usr/bin/magick"
if os.path.exists(alt_imagemagick):
return alt_imagemagick
return None
def _get_imagemagick_binary() -> Optional[str]:
"""
Returns the path to the ImageMagick binary if it exists, otherwise None.
"""
native_imagemagick = "/usr/bin/convert"
if os.path.exists(native_imagemagick):
return native_imagemagick
return None
def _get_rsvg_convert_binary() -> Optional[str]:
"""
Returns the path to the rsvg-convert binary if it exists, otherwise None.
"""
rsvg_convert = "/usr/bin/rsvg-convert"
if os.path.exists(rsvg_convert):
return rsvg_convert
return None
def _convert_with_rsvg(svg_data: str, rsvg_convert: str) -> bytes:
"""
Converts SVG data to PNG format using rsvg-convert.
Args:
svg_data (str): The SVG data to convert.
rsvg_convert (str): The path to the rsvg-convert binary.
Returns:
bytes: The converted PNG data.
"""
cwd = '/var/lve/tmp' if os.getuid() == 0 else None
with subprocess.Popen(
[rsvg_convert, "-f", "png", "-b", "rgba(255, 255, 255, 255)"],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
cwd=cwd
) as proc:
png_data, _ = proc.communicate(input=svg_data.encode())
return png_data
def _convert_with_imagemagick(svg_data: str, imagemagick: str) -> bytes:
"""
Converts SVG data to PNG format using ImageMagick.
Args:
svg_data (str): The SVG data to convert.
imagemagick (str): The path to the ImageMagick binary.
Returns:
bytes: The converted PNG data.
"""
cwd = '/var/lve/tmp' if os.getuid() == 0 else None
with subprocess.Popen(
[imagemagick, "-", "png:-"],
stdin=subprocess.PIPE,
stdout=subprocess.PIPE,
cwd=cwd
) as proc:
png_data, _ = proc.communicate(input=svg_data.encode())
return png_data
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