def update_canvas(self):
""" Updates canvas """
httplog = os.path.join(self.options.folder, self.options.log_filename)
try:
t1 = os.path.getsize(httplog)
except:
self.canvas.after(1000, self.update_canvas)
return
try:
fp = open(httplog, 'r')
fp.seek(self.t0)
data = fp.read(t1 - self.t0)
fp.close()
value = self.p0[1:] + [10 + 90.0 / math.sqrt(1 + data.count('\n'))]
self.p0 = value
for i in xrange(len(self.p0) - 1):
c = self.canvas.coords(self.q0[i])
self.canvas.coords(self.q0[i],
(c[0],
self.p0[i],
c[2],
self.p0[i + 1]))
self.t0 = t1
except BaseException:
self.t0 = time.time()
self.t0 = t1
self.p0 = [100] * 400
self.q0 = [self.canvas.create_line(i, 100, i + 1, 100,
fill='green') for i in xrange(len(self.p0) - 1)]
self.canvas.after(1000, self.update_canvas)
def update_canvas(self):
""" Updates canvas """
httplog = os.path.join(self.options.folder, self.options.log_filename)
try:
t1 = os.path.getsize(httplog)
except:
self.canvas.after(1000, self.update_canvas)
return
try:
fp = open(httplog, 'r')
fp.seek(self.t0)
data = fp.read(t1 - self.t0)
fp.close()
value = self.p0[1:] + [10 + 90.0 / math.sqrt(1 + data.count('\n'))]
self.p0 = value
for i in xrange(len(self.p0) - 1):
c = self.canvas.coords(self.q0[i])
self.canvas.coords(self.q0[i],
(c[0], self.p0[i], c[2], self.p0[i + 1]))
self.t0 = t1
except BaseException:
self.t0 = time.time()
self.t0 = t1
self.p0 = [100] * 400
self.q0 = [
self.canvas.create_line(i, 100, i + 1, 100, fill='green')
for i in xrange(len(self.p0) - 1)
]
self.canvas.after(1000, self.update_canvas)
def update_canvas(self):
""" Updates canvas """
httplog = os.path.join(self.options.folder, self.options.log_filename)
canvas = self.canvas
try:
t1 = os.path.getsize(httplog)
except OSError:
canvas.after(1000, self.update_canvas)
return
points = 400
try:
pvalues = self.p0[1:]
with open(httplog, 'r') as fp:
fp.seek(self.t0)
data = fp.read(t1 - self.t0)
self.p0 = pvalues + [10 + 90.0 / math.sqrt(1 + data.count('\n'))]
for i in xrange(points - 1):
c = canvas.coords(self.q0[i])
canvas.coords(self.q0[i],
(c[0], self.p0[i],
c[2], self.p0[i + 1]))
self.t0 = t1
except AttributeError:
self.t0 = time.time()
self.t0 = t1
self.p0 = [100] * points
self.q0 = [canvas.create_line(i, 100, i + 1, 100,
fill='green') for i in xrange(points - 1)]
canvas.after(1000, self.update_canvas)
def compare(a, b):
""" Compares two strings and not vulnerable to timing attacks """
if HAVE_COMPARE_DIGEST:
return hmac.compare_digest(a, b)
result = len(a) ^ len(b)
for i in xrange(len(b)):
result |= ord(a[i % len(a)]) ^ ord(b[i])
return result == 0
def compare(a, b):
""" Compares two strings and not vulnerable to timing attacks """
if HAVE_COMPARE_DIGEST:
return hmac.compare_digest(a, b)
result = len(a) ^ len(b)
for i in xrange(len(b)):
result |= ord(a[i%len(a)]) ^ ord(b[i])
return result == 0
def fast_urandom16(urandom=[], locker=threading.RLock()):
"""
This is 4x faster than calling os.urandom(16) and prevents
the "too many files open" issue with concurrent access to os.urandom()
"""
try:
return urandom.pop()
except IndexError:
try:
locker.acquire()
ur = os.urandom(16 * 1024)
urandom += [ur[i:i + 16] for i in xrange(16, 1024 * 16, 16)]
return ur[0:16]
finally:
locker.release()
def fast_urandom16(urandom=[], locker=threading.RLock()):
"""
This is 4x faster than calling os.urandom(16) and prevents
the "too many files open" issue with concurrent access to os.urandom()
"""
try:
return urandom.pop()
except IndexError:
try:
locker.acquire()
ur = os.urandom(16 * 1024)
urandom += [ur[i:i + 16] for i in xrange(16, 1024 * 16, 16)]
return ur[0:16]
finally:
locker.release()
def highlight(
code,
language,
link='/examples/globals/vars/',
counter=1,
styles=None,
highlight_line=None,
context_lines=None,
attributes=None,
):
styles = styles or {}
attributes = attributes or {}
code_style = styles.get('CODE', None) or '''
font-size: 11px;
font-family: Bitstream Vera Sans Mono,monospace;
background-color: transparent;
margin: 0;
padding: 5px;
border: none;
overflow: auto;
white-space: pre !important;
'''
linenumbers_style = styles.get('LINENUMBERS', None) or '''
font-size: 11px;
font-family: Bitstream Vera Sans Mono,monospace;
background-color: transparent;
margin: 0;
padding: 5px;
border: none;
color: #A0A0A0;
'''
linehighlight_style = styles.get('LINEHIGHLIGHT', None) or \
'background-color: #EBDDE2;'
if language and language.upper() in [
'PYTHON', 'C', 'CPP', 'HTML', 'WEB2PY'
]:
code = Highlighter(language, link, styles).highlight(code)
else:
code = local_html_escape(code, quote=False)
lines = code.split('\n')
if counter is None:
linenumbers = [''] * len(lines)
elif isinstance(counter, str):
linenumbers = [local_html_escape(counter, quote=False)] * len(lines)
else:
linenumbers = [str(i + counter) + '.' for i in xrange(len(lines))]
if highlight_line:
if counter and not isinstance(counter, str):
lineno = highlight_line - counter
else:
lineno = highlight_line
if lineno < len(lines):
lines[lineno] = '<span style="%s">%s</span>' % (
linehighlight_style, lines[lineno])
linenumbers[lineno] = '<span style="%s">%s</span>' % (
linehighlight_style, linenumbers[lineno])
if context_lines:
if lineno + context_lines < len(lines):
delslice = slice(lineno + context_lines + 1, len(lines))
del lines[delslice]
del linenumbers[delslice]
if lineno - context_lines > 0:
delslice = slice(0, lineno - context_lines)
del lines[delslice]
del linenumbers[delslice]
code = '<br/>'.join(lines)
numbers = '<br/>'.join(linenumbers)
items = attributes.items()
fa = ' '.join([
key[1:].lower()
for (key, value) in items if key[:1] == '_' and value is None
] + [
'%s="%s"' % (key[1:].lower(), str(value).replace('"', "'"))
for (key, value) in attributes.items() if key[:1] == '_' and value
])
if fa:
fa = ' ' + fa
return '<table%s><tr style="vertical-align:top;">' \
'<td style="min-width:40px; text-align: right;"><pre style="%s">%s</pre></td>' \
'<td><pre style="%s">%s</pre></td></tr></table>' % (fa, linenumbers_style, numbers, code_style, code)
def highlight(
code,
language,
link='/examples/globals/vars/',
counter=1,
styles=None,
highlight_line=None,
context_lines=None,
attributes=None,
):
styles = styles or {}
attributes = attributes or {}
if 'CODE' not in styles:
code_style = """
font-size: 11px;
font-family: Bitstream Vera Sans Mono,monospace;
background-color: transparent;
margin: 0;
padding: 5px;
border: none;
overflow: auto;
white-space: pre !important;\n"""
else:
code_style = styles['CODE']
if 'LINENUMBERS' not in styles:
linenumbers_style = """
font-size: 11px;
font-family: Bitstream Vera Sans Mono,monospace;
background-color: transparent;
margin: 0;
padding: 5px;
border: none;
color: #A0A0A0;\n"""
else:
linenumbers_style = styles['LINENUMBERS']
if 'LINEHIGHLIGHT' not in styles:
linehighlight_style = "background-color: #EBDDE2;"
else:
linehighlight_style = styles['LINEHIGHLIGHT']
if language and language.upper() in ['PYTHON', 'C', 'CPP', 'HTML',
'WEB2PY']:
code = Highlighter(language, link, styles).highlight(code)
else:
code = local_html_escape(code, quote=False)
lines = code.split('\n')
if counter is None:
linenumbers = [''] * len(lines)
elif isinstance(counter, str):
linenumbers = [local_html_escape(counter, quote=False)] * len(lines)
else:
linenumbers = [str(i + counter) + '.' for i in
xrange(len(lines))]
if highlight_line:
if counter and not isinstance(counter, str):
lineno = highlight_line - counter
else:
lineno = highlight_line
if lineno < len(lines):
lines[lineno] = '<div style="%s">%s</div>' % (
linehighlight_style, lines[lineno])
linenumbers[lineno] = '<div style="%s">%s</div>' % (
linehighlight_style, linenumbers[lineno])
if context_lines:
if lineno + context_lines < len(lines):
del lines[lineno + context_lines:]
del linenumbers[lineno + context_lines:]
if lineno - context_lines > 0:
del lines[0:lineno - context_lines]
del linenumbers[0:lineno - context_lines]
code = '<br/>'.join(lines)
numbers = '<br/>'.join(linenumbers)
items = attributes.items()
fa = ' '.join([key[1:].lower() for (key, value) in items if key[:1]
== '_' and value is None] + ['%s="%s"'
% (key[1:].lower(), str(value).replace('"', "'"))
for (key, value) in attributes.items() if key[:1]
== '_' and value])
if fa:
fa = ' ' + fa
return '<table%s><tr style="vertical-align:top;">' \
'<td style="min-width:40px; text-align: right;"><pre style="%s">%s</pre></td>' \
'<td><pre style="%s">%s</pre></td></tr></table>' % (fa, linenumbers_style, numbers, code_style, code)