def format_exception(excinfo,
*,
prefix="",
fg=lightblack,
bg=lightblack_bg,
summary=True):
formatted_exception = _format_exception(*excinfo)
output = []
stack_length = len(formatted_exception)
for i, frame in enumerate(formatted_exception):
_last = i + 1 == stack_length
if frame.startswith(" "):
output.append(textwrap.indent(" " + frame.strip(), fg("\u2502 ")))
else:
# XXX TODO change this to use valid python package regexp (plus dot).
g = re.match("([a-zA-Z_.]+): (.*)$",
frame.strip(),
flags=re.DOTALL)
if summary or not _last:
if g is not None:
etyp, emsg = g.group(1), g.group(2)
output.append(
fg(styles.BOTTOM_LEFT if _last else styles.VERT_LEFT) +
bg(lightwhite(" " + etyp + " ")) + " " + lightwhite(
textwrap.indent(str(emsg), " " *
(len(etyp) + 4)).strip()))
else:
output.append(textwrap.indent(frame.strip(),
fg("\u2502 ")))
return textwrap.indent(EOL.join(output), prefix=prefix)
def get_error_page(status, **kwargs):
"""Return an HTML page, containing a pretty error response.
status should be an int or a str.
kwargs will be interpolated into the page template.
"""
import cherrypy
try:
code, reason, message = _httputil.valid_status(status)
except ValueError:
raise cherrypy.HTTPError(500, _exc_info()[1].args[0])
# We can't use setdefault here, because some
# callers send None for kwarg values.
if kwargs.get('status') is None:
kwargs['status'] = "%s %s" % (code, reason)
if kwargs.get('message') is None:
kwargs['message'] = message
if kwargs.get('traceback') is None:
kwargs['traceback'] = ''
if kwargs.get('version') is None:
kwargs['version'] = cherrypy.__version__
for k, v in iteritems(kwargs):
if v is None:
kwargs[k] = ""
else:
kwargs[k] = _escape(kwargs[k])
# Use a custom template or callable for the error page?
pages = cherrypy.serving.request.error_page
error_page = pages.get(code) or pages.get('default')
if error_page:
try:
if hasattr(error_page, '__call__'):
return error_page(**kwargs)
else:
data = open(error_page, 'rb').read()
return tonative(data) % kwargs
except:
e = _format_exception(*_exc_info())[-1]
m = kwargs['message']
if m:
m += "<br />"
m += "In addition, the custom error page failed:\n<br />%s" % e
kwargs['message'] = m
return _HTTPErrorTemplate % kwargs
def get_error_page(status, **kwargs):
"""Return an HTML page, containing a pretty error response.
status should be an int or a str.
kwargs will be interpolated into the page template.
"""
import cherrypy
try:
code, reason, message = _httputil.valid_status(status)
except ValueError as x:
raise cherrypy.HTTPError(500, x.args[0])
if kwargs.get('status') is None:
kwargs['status'] = '%s %s' % (code, reason)
if kwargs.get('message') is None:
kwargs['message'] = message
if kwargs.get('traceback') is None:
kwargs['traceback'] = ''
if kwargs.get('version') is None:
kwargs['version'] = cherrypy.__version__
for k, v in iteritems(kwargs):
if v is None:
kwargs[k] = ''
else:
kwargs[k] = _escape(kwargs[k])
pages = cherrypy.serving.request.error_page
error_page = pages.get(code) or pages.get('default')
if error_page:
try:
if hasattr(error_page, '__call__'):
return error_page(**kwargs)
return open(error_page, 'rb').read() % kwargs
except:
e = _format_exception(*_exc_info())[-1]
m = kwargs['message']
if m:
m += '<br />'
m += 'In addition, the custom error page failed:\n<br />%s' % e
kwargs['message'] = m
return _HTTPErrorTemplate % kwargs
def get_error_page(status, **kwargs):
import cherrypy
try:
code, reason, message = _httputil.valid_status(status)
except ValueError as x:
raise cherrypy.HTTPError(500, x.args[0])
if kwargs.get('status') is None:
kwargs['status'] = '%s %s' % (code, reason)
if kwargs.get('message') is None:
kwargs['message'] = message
if kwargs.get('traceback') is None:
kwargs['traceback'] = ''
if kwargs.get('version') is None:
kwargs['version'] = cherrypy.__version__
for k, v in iteritems(kwargs):
if v is None:
kwargs[k] = ''
else:
kwargs[k] = _escape(kwargs[k])
pages = cherrypy.serving.request.error_page
error_page = pages.get(code) or pages.get('default')
if error_page:
try:
if hasattr(error_page, '__call__'):
return error_page(**kwargs)
return open(error_page, 'rb').read() % kwargs
except:
e = _format_exception(*_exc_info())[-1]
m = kwargs['message']
if m:
m += '<br />'
m += 'In addition, the custom error page failed:\n<br />%s' % e
kwargs['message'] = m
return _HTTPErrorTemplate % kwargs
def get_error_page(status, **kwargs):
"""Return an HTML page, containing a pretty error response.
status should be an int or a str.
kwargs will be interpolated into the page template.
"""
try:
code, reason, message = _httputil.valid_status(status)
except ValueError:
raise cherrypy.HTTPError(500, _exc_info()[1].args[0])
# We can't use setdefault here, because some
# callers send None for kwarg values.
if kwargs.get('status') is None:
kwargs['status'] = '%s %s' % (code, reason)
if kwargs.get('message') is None:
kwargs['message'] = message
if kwargs.get('traceback') is None:
kwargs['traceback'] = ''
if kwargs.get('version') is None:
kwargs['version'] = cherrypy.__version__
for k, v in six.iteritems(kwargs):
if v is None:
kwargs[k] = ''
else:
kwargs[k] = escape_html(kwargs[k])
# Use a custom template or callable for the error page?
pages = cherrypy.serving.request.error_page
error_page = pages.get(code) or pages.get('default')
# Default template, can be overridden below.
template = _HTTPErrorTemplate
if error_page:
try:
if hasattr(error_page, '__call__'):
# The caller function may be setting headers manually,
# so we delegate to it completely. We may be returning
# an iterator as well as a string here.
#
# We *must* make sure any content is not unicode.
result = error_page(**kwargs)
if cherrypy.lib.is_iterator(result):
from cherrypy.lib.encoding import UTF8StreamEncoder
return UTF8StreamEncoder(result)
elif isinstance(result, six.text_type):
return result.encode('utf-8')
else:
if not isinstance(result, bytes):
raise ValueError(
'error page function did not '
'return a bytestring, six.text_type or an '
'iterator - returned object of type %s.' %
(type(result).__name__))
return result
else:
# Load the template from this path.
template = tonative(open(error_page, 'rb').read())
except Exception:
e = _format_exception(*_exc_info())[-1]
m = kwargs['message']
if m:
m += '<br />'
m += 'In addition, the custom error page failed:\n<br />%s' % e
kwargs['message'] = m
response = cherrypy.serving.response
response.headers['Content-Type'] = 'text/html;charset=utf-8'
result = template % kwargs
return result.encode('utf-8')
if v is None:
kwargs[k] = ""
else:
kwargs[k] = _escape(kwargs[k])
# Use a custom template or callable for the error page?
pages = cherrypy.serving.request.error_page
error_page = pages.get(code) or pages.get('default')
if error_page:
try:
if callable(error_page):
return error_page(**kwargs)
else:
return open(error_page, 'rb').read() % kwargs
except:
e = _format_exception(*_exc_info())[-1]
m = kwargs['message']
if m:
m += "<br />"
m += "In addition, the custom error page failed:\n<br />%s" % e
kwargs['message'] = m
return _HTTPErrorTemplate % kwargs
_ie_friendly_error_sizes = {
400: 512, 403: 256, 404: 512, 405: 256,
406: 512, 408: 512, 409: 512, 410: 256,
500: 512, 501: 512, 505: 512,
}
def get_error_page(status, errors=None, **kwargs):
"""Return an HTML page, containing a pretty error response.
status should be an int or a str.
kwargs will be interpolated into the page template.
"""
try:
code, reason, message = _httputil.valid_status(status)
except ValueError:
raise cherrypy.HTTPError(500, _exc_info()[1].args[0])
# We can't use setdefault here, because some
# callers send None for kwarg values.
if kwargs.get('status') is None:
kwargs['status'] = '%s %s' % (code, reason)
if kwargs.get('message') is None:
kwargs['message'] = message
if kwargs.get('traceback') is None:
kwargs['traceback'] = ''
if kwargs.get('version') is None:
kwargs['version'] = cherrypy.__version__
for k, v in kwargs.items():
if v is None:
kwargs[k] = ''
else:
kwargs[k] = _escape(kwargs[k])
# Use a custom template or callable for the error page?
pages = cherrypy.serving.request.error_page
error_page = pages.get(code) or pages.get('default')
# Default template, can be overridden below.
template = _HTTPErrorTemplate
if error_page:
try:
if hasattr(error_page, '__call__'):
# The caller function may be setting headers manually,
# so we delegate to it completely. We may be returning
# an iterator as well as a string here.
#
# We *must* make sure any content is not unicode.
result = error_page(errors=errors, **kwargs)
if cherrypy.lib.is_iterator(result):
return UTF8StreamEncoder(result)
elif isinstance(result, str): # str is OK for Python3
return result.encode('utf-8')
else:
if not isinstance(result, bytes):
raise ValueError(
'error page function did not '
'return a bytestring, unicodestring or an '
'iterator - returned object of type {}.'
.format(type(result).__name__))
return result
else:
# Load the template from this path.
template = tonative(open(error_page, 'rb').read())
except:
e = _format_exception(*_exc_info())[-1]
m = kwargs['message']
if m:
m += '<br />'
m += 'In addition, the custom error page failed:\n<br />%s' % e
kwargs['message'] = m
response = cherrypy.serving.response
response.headers['Content-Type'] = 'text/html;charset=utf-8'
result = template % kwargs
return result.encode('utf-8')
