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227 lines
7.1 KiB
227 lines
7.1 KiB
#
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# pwcheck.py
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#
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# Copyright (C) 2010 Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# Red Hat Author(s): Martin Gracik <mgracik@redhat.com>
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#
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import re
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import pwquality
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import pygtk
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pygtk.require("2.0")
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import gtk
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import logging
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logging.basicConfig(level=logging.INFO)
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logger = logging.getLogger("pwcheck")
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import gettext
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_ = lambda x: gettext.ldgettext("firstboot", x)
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def clamp(value, lowerbound, upperbound):
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return min(max(value, lowerbound), upperbound)
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class Password(object):
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MIN_STRENGTH = 0
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MAX_STRENGTH = 100
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STRENGTH_STRINGS = [ _("Very weak"),
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_("Weak"),
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_("Fairly strong"),
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_("Strong"),
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_("Very strong") ]
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def __init__(self, password, username=None):
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self.password = password
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self.username = username
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self.pwq_settings = pwquality.PWQSettings()
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self.pwq_settings.read_config()
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self.strength = self.MIN_STRENGTH
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self.pwq_msg = ''
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try:
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self.strength = self.pwq_settings.check(self.password, None, self.username)
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except pwquality.PWQError as (e, msg):
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self.pwq_msg = msg
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self.strength = clamp(self.strength, self.MIN_STRENGTH, self.MAX_STRENGTH)
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@property
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def strength_frac(self):
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return float(self.strength) / self.MAX_STRENGTH
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@property
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def strength_string(self):
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strings_count = len(self.STRENGTH_STRINGS)
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index = int(self.strength / (self.MAX_STRENGTH / strings_count))
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try:
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return self.STRENGTH_STRINGS[index]
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except IndexError:
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return self.STRENGTH_STRINGS[-1]
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def __str__(self):
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return "%s" % self.password
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class StrengthMeter(gtk.DrawingArea):
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COLORS = [(213.0/255.0, 4.0/255.0, 4.0/255.0),
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(234.0/255.0, 236.0/255.0, 31.0/255.0),
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(141.0/255.0, 133.0/255.0, 241.0/255.0),
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(99.0/255.0, 251.0/255.0, 107.0/255.0)]
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def __init__(self):
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super(StrengthMeter, self).__init__()
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self.connect("expose_event", self.expose)
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self._fraction = 0.0
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def curved_rectangle(self, context, x0, y0, width, height, radius):
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if not width or not height:
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return
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x1 = x0 + width
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y1 = y0 + height
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if width / 2 < radius:
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if height / 2 < radius:
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context.move_to (x0, (y0 + y1) / 2)
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context.curve_to(x0 ,y0, x0, y0, (x0 + x1) / 2, y0)
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context.curve_to(x1, y0, x1, y0, x1, (y0 + y1) / 2)
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context.curve_to(x1, y1, x1, y1, (x1 + x0) / 2, y1)
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context.curve_to(x0, y1, x0, y1, x0, (y0 + y1) / 2)
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else:
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context.move_to (x0, y0 + radius)
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context.curve_to(x0, y0, x0, y0, (x0 + x1) / 2, y0)
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context.curve_to(x1, y0, x1, y0, x1, y0 + radius)
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context.line_to (x1, y1 - radius)
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context.curve_to(x1, y1, x1, y1, (x1 + x0) / 2, y1)
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context.curve_to(x0, y1, x0, y1, x0, y1 - radius)
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else:
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if height / 2 < radius:
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context.move_to (x0, (y0 + y1) / 2)
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context.curve_to(x0, y0, x0 , y0, x0 + radius, y0)
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context.line_to (x1 - radius, y0)
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context.curve_to(x1, y0, x1, y0, x1, (y0 + y1) / 2)
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context.curve_to(x1, y1, x1, y1, x1 - radius, y1)
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context.line_to (x0 + radius, y1)
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context.curve_to(x0, y1, x0, y1, x0, (y0 + y1) / 2)
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else:
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context.move_to (x0, y0 + radius)
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context.curve_to(x0 , y0, x0 , y0, x0 + radius, y0)
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context.line_to (x1 - radius, y0)
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context.curve_to(x1, y0, x1, y0, x1, y0 + radius)
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context.line_to (x1, y1 - radius)
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context.curve_to(x1, y1, x1, y1, x1 - radius, y1)
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context.line_to (x0 + radius, y1)
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context.curve_to(x0, y1, x0, y1, x0, y1 - radius)
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context.close_path()
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def expose(self, widget, event):
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# Create the cairo context
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context = widget.window.cairo_create()
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# Restrict cairo to the exposed area
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context.rectangle(event.area.x, event.area.y,
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event.area.width, event.area.height)
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context.clip()
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# Draw the widget
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self.draw(context)
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return False
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def draw(self, context):
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alloc = self.get_allocation()
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context.translate(-alloc.x, -alloc.y)
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context.save()
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context.set_source_rgb(0.0, 0.0, 0.0)
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context.set_line_width(1)
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self.curved_rectangle(context, alloc.x + 0.5, alloc.y + 0.5,
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alloc.width - 1, alloc.height - 1,
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4)
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context.stroke()
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context.restore()
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context.save()
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r, g, b = self.get_color()
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context.set_source_rgb(r, g, b)
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context.rectangle(alloc.x + 1, alloc.y + 1,
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self.fraction * (alloc.width - 2), alloc.height - 2)
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context.fill_preserve()
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context.restore()
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def redraw(self):
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if self.window:
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alloc = self.get_allocation()
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rect = gtk.gdk.Rectangle(0, 0, alloc.width, alloc.height)
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self.window.invalidate_rect(rect, True)
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self.queue_draw_area(alloc.x, alloc.y, alloc.width, alloc.height)
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self.window.process_updates(True)
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@property
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def fraction(self):
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return self._fraction
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@fraction.setter
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def fraction(self, fraction):
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self._fraction = fraction
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self.redraw()
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def get_color(self):
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if self.fraction < 0.5:
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return self.COLORS[0]
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elif self.fraction < 0.75:
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return self.COLORS[1]
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elif self.fraction < 0.90:
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return self.COLORS[2]
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else:
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return self.COLORS[3]
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class StrengthMeterWithLabel(gtk.HBox):
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def __init__(self):
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super(StrengthMeterWithLabel, self).__init__()
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self.meter = StrengthMeter()
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self.meter.set_size_request(120, 8)
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self.alignment = gtk.Alignment(0.0, 0.5)
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self.alignment.add(self.meter)
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self.label = gtk.Label()
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self.label.set_alignment(0.0, 0.5)
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self.pack_start(self.alignment, expand=False)
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self.pack_start(self.label)
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self.set_spacing(10)
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def set_fraction(self, fraction):
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self.meter.fraction = fraction
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def set_text(self, text):
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self.label.set_text(text)
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