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#!/usr/bin/env python
#
# Copyright 2022 by Moshe Kaplan
# Based on colorfilter2js.pl by Dirk Jagdmann <doj@cubic.org>
#
# Wireshark - Network traffic analyzer
# By Gerald Combs <gerald@wireshark.org>
# Copyright 1998 Gerald Combs
#
# SPDX-License-Identifier: GPL-2.0-or-later
# Python script to convert a Wireshark color scheme to javascript
# code. The javascript function should then be inserted into the
# pdml2html.xsl file.
#
# run this as: python tools/colorfilters2js.py colorfilters
import argparse
import io
import re
import sys
js_prologue = """\
function set_node_color(node, colorname)
{
if (dojo.isString(node))
node = dojo.byId(node);
if (!node) return;
var fg;
var bg;
"""
js_color_entry = """\
{7}if (colorname == '{0}') {{
bg='#{1:02x}{2:02x}{3:02x}';
fg='#{4:02x}{5:02x}{6:02x}';
}}\
"""
js_epilogue = """
if (fg.length > 0)
node.style.color = fg;
if (bg.length > 0)
node.style.background = bg;
}
"""
def generate_javascript(colorlines):
output = [js_prologue]
else_text = ""
for colorline in colorlines:
colorvalues = colorline[0], int(colorline[1])//256, int(colorline[2])//256, int(colorline[3])//256, int(colorline[4])//256, int(colorline[5])//256, int(colorline[6])//256, else_text
output += [js_color_entry.format(*colorvalues)]
else_text = "else "
output += [js_epilogue]
return "\n".join(output)
def main():
parser = argparse.ArgumentParser(description="Convert a Wireshark color scheme to javascript code.")
parser.add_argument("files", metavar='files', nargs='+', help="paths to colorfiles")
parsed_args = parser.parse_args()
COLORLINE_PATTERN = r"\@(.+?)\@.+\[(\d+),(\d+),(\d+)\]\[(\d+),(\d+),(\d+)\]"
colorlines = []
# Sample line:
# @Errors@ct.error@[4626,10023,11822][63479,34695,34695]
# Read the lines from all files:
for filename in parsed_args.files:
with open(filename, encoding='utf-8') as fh:
file_content = fh.read()
colorlines += re.findall(COLORLINE_PATTERN, file_content)
javascript_code = generate_javascript(colorlines)
stdoutu8 = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8')
stdoutu8.write(javascript_code)
if __name__ == "__main__":
main()
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