Mercurial > libervia-backend
view sat_frontends/tools/css_color.py @ 2646:712cb4ff3e13
core: new EncryptionHandler class which manage encrypted session as a core feature:
Plugin handling encryption can now register using host.registerEncryptionPlugin, and an encryption session can now be started using messageEncryptionStart bridge method.
This will make encryption handling more easy, as we now know if a session is clear or e2e encrypted, and which plugin handle it.
author | Goffi <goffi@goffi.org> |
---|---|
date | Sun, 29 Jul 2018 19:22:56 +0200 |
parents | 56f94936df1e |
children | 003b8b4b56a7 |
line wrap: on
line source
#!/usr/bin/env python2 # -*- coding: utf-8 -*- # CSS color parsing # Copyright (C) 2009-2018 Jérome-Poisson # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU Affero General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU Affero General Public License for more details. # You should have received a copy of the GNU Affero General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. from sat.core.log import getLogger log = getLogger(__name__) CSS_COLORS = { u"black": u"000000", u"silver": u"c0c0c0", u"gray": u"808080", u"white": u"ffffff", u"maroon": u"800000", u"red": u"ff0000", u"purple": u"800080", u"fuchsia": u"ff00ff", u"green": u"008000", u"lime": u"00ff00", u"olive": u"808000", u"yellow": u"ffff00", u"navy": u"000080", u"blue": u"0000ff", u"teal": u"008080", u"aqua": u"00ffff", u"orange": u"ffa500", u"aliceblue": u"f0f8ff", u"antiquewhite": u"faebd7", u"aquamarine": u"7fffd4", u"azure": u"f0ffff", u"beige": u"f5f5dc", u"bisque": u"ffe4c4", u"blanchedalmond": u"ffebcd", u"blueviolet": u"8a2be2", u"brown": u"a52a2a", u"burlywood": u"deb887", u"cadetblue": u"5f9ea0", u"chartreuse": u"7fff00", u"chocolate": u"d2691e", u"coral": u"ff7f50", u"cornflowerblue": u"6495ed", u"cornsilk": u"fff8dc", u"crimson": u"dc143c", u"darkblue": u"00008b", u"darkcyan": u"008b8b", u"darkgoldenrod": u"b8860b", u"darkgray": u"a9a9a9", u"darkgreen": u"006400", u"darkgrey": u"a9a9a9", u"darkkhaki": u"bdb76b", u"darkmagenta": u"8b008b", u"darkolivegreen": u"556b2f", u"darkorange": u"ff8c00", u"darkorchid": u"9932cc", u"darkred": u"8b0000", u"darksalmon": u"e9967a", u"darkseagreen": u"8fbc8f", u"darkslateblue": u"483d8b", u"darkslategray": u"2f4f4f", u"darkslategrey": u"2f4f4f", u"darkturquoise": u"00ced1", u"darkviolet": u"9400d3", u"deeppink": u"ff1493", u"deepskyblue": u"00bfff", u"dimgray": u"696969", u"dimgrey": u"696969", u"dodgerblue": u"1e90ff", u"firebrick": u"b22222", u"floralwhite": u"fffaf0", u"forestgreen": u"228b22", u"gainsboro": u"dcdcdc", u"ghostwhite": u"f8f8ff", u"gold": u"ffd700", u"goldenrod": u"daa520", u"greenyellow": u"adff2f", u"grey": u"808080", u"honeydew": u"f0fff0", u"hotpink": u"ff69b4", u"indianred": u"cd5c5c", u"indigo": u"4b0082", u"ivory": u"fffff0", u"khaki": u"f0e68c", u"lavender": u"e6e6fa", u"lavenderblush": u"fff0f5", u"lawngreen": u"7cfc00", u"lemonchiffon": u"fffacd", u"lightblue": u"add8e6", u"lightcoral": u"f08080", u"lightcyan": u"e0ffff", u"lightgoldenrodyellow": u"fafad2", u"lightgray": u"d3d3d3", u"lightgreen": u"90ee90", u"lightgrey": u"d3d3d3", u"lightpink": u"ffb6c1", u"lightsalmon": u"ffa07a", u"lightseagreen": u"20b2aa", u"lightskyblue": u"87cefa", u"lightslategray": u"778899", u"lightslategrey": u"778899", u"lightsteelblue": u"b0c4de", u"lightyellow": u"ffffe0", u"limegreen": u"32cd32", u"linen": u"faf0e6", u"mediumaquamarine": u"66cdaa", u"mediumblue": u"0000cd", u"mediumorchid": u"ba55d3", u"mediumpurple": u"9370db", u"mediumseagreen": u"3cb371", u"mediumslateblue": u"7b68ee", u"mediumspringgreen": u"00fa9a", u"mediumturquoise": u"48d1cc", u"mediumvioletred": u"c71585", u"midnightblue": u"191970", u"mintcream": u"f5fffa", u"mistyrose": u"ffe4e1", u"moccasin": u"ffe4b5", u"navajowhite": u"ffdead", u"oldlace": u"fdf5e6", u"olivedrab": u"6b8e23", u"orangered": u"ff4500", u"orchid": u"da70d6", u"palegoldenrod": u"eee8aa", u"palegreen": u"98fb98", u"paleturquoise": u"afeeee", u"palevioletred": u"db7093", u"papayawhip": u"ffefd5", u"peachpuff": u"ffdab9", u"peru": u"cd853f", u"pink": u"ffc0cb", u"plum": u"dda0dd", u"powderblue": u"b0e0e6", u"rosybrown": u"bc8f8f", u"royalblue": u"4169e1", u"saddlebrown": u"8b4513", u"salmon": u"fa8072", u"sandybrown": u"f4a460", u"seagreen": u"2e8b57", u"seashell": u"fff5ee", u"sienna": u"a0522d", u"skyblue": u"87ceeb", u"slateblue": u"6a5acd", u"slategray": u"708090", u"slategrey": u"708090", u"snow": u"fffafa", u"springgreen": u"00ff7f", u"steelblue": u"4682b4", u"tan": u"d2b48c", u"thistle": u"d8bfd8", u"tomato": u"ff6347", u"turquoise": u"40e0d0", u"violet": u"ee82ee", u"wheat": u"f5deb3", u"whitesmoke": u"f5f5f5", u"yellowgreen": u"9acd32", u"rebeccapurple": u"663399", } DEFAULT = u"000000" def parse(raw_value, as_string=True): """parse CSS color value and return normalised value @param raw_value(unicode): CSS value @param as_string(bool): if True return a string, else return a tuple of int @return (unicode, tuple): normalised value if as_string is True, value is 3 or 4 hex words (e.g. u"ff00aabb") else value is a 3 or 4 tuple of int (e.g.: (255, 0, 170, 187)). If present, the 4th value is the alpha channel If value can't be parsed, a warning message is logged, and DEFAULT is returned """ raw_value = raw_value.strip().lower() if raw_value.startswith(u"#"): # we have a hexadecimal value str_value = raw_value[1:] if len(raw_value) in (3, 4): str_value = u"".join([2 * v for v in str_value]) elif raw_value.startswith(u"rgb"): left_p = raw_value.find(u"(") right_p = raw_value.find(u")") rgb_values = [v.strip() for v in raw_value[left_p + 1 : right_p].split(",")] expected_len = 4 if raw_value.startswith(u"rgba") else 3 if len(rgb_values) != expected_len: log.warning(u"incorrect value: {}".format(raw_value)) str_value = DEFAULT else: int_values = [] for rgb_v in rgb_values: p_idx = rgb_v.find(u"%") if p_idx == -1: # base 10 value try: int_v = int(rgb_v) if int_v > 255: raise ValueError(u"value exceed 255") int_values.append(int_v) except ValueError: log.warning(u"invalid int: {}".format(rgb_v)) int_values.append(0) else: # percentage try: int_v = int(int(rgb_v[:p_idx]) / 100.0 * 255) if int_v > 255: raise ValueError(u"value exceed 255") int_values.append(int_v) except ValueError: log.warning(u"invalid percent value: {}".format(rgb_v)) int_values.append(0) str_value = u"".join([u"{:02x}".format(v) for v in int_values]) elif raw_value.startswith(u"hsl"): log.warning(u"hue-saturation-lightness not handled yet") # TODO str_value = DEFAULT else: try: str_value = CSS_COLORS[raw_value] except KeyError: log.warning(u"unrecognised format: {}".format(raw_value)) str_value = DEFAULT if as_string: return str_value else: return tuple( [ int(str_value[i] + str_value[i + 1], 16) for i in xrange(0, len(str_value), 2) ] )