# Embedded file name: lib\web\debugerror.py """ pretty debug errors (part of web.py) portions adapted from Django Copyright (c) 2005, the Lawrence Journal-World Used under the modified BSD license: http://www.xfree86.org/3.3.6/COPYRIGHT2.html#5 """ __all__ = ['debugerror', 'djangoerror', 'emailerrors'] import sys, pprint, traceback from .template import Template from .net import websafe from .utils import sendmail, safestr from . import webapi as web from .py3helpers import urljoin, PY2 if PY2: def update_globals_template(t, globals): t.t.func_globals.update(globals) else: def update_globals_template(t, globals): t.t.__globals__.update(globals) import os, os.path whereami = os.path.join(os.getcwd(), __file__) whereami = os.path.sep.join(whereami.split(os.path.sep)[:-1]) djangoerror_t = '$def with (exception_type, exception_value, frames)\n\n\n\n \n \n $exception_type at $ctx.path\n \n \n\n\n\n$def dicttable (d, kls=\'req\', id=None):\n $ items = d and list(d.items()) or []\n $items.sort()\n $:dicttable_items(items, kls, id)\n \n$def dicttable_items(items, kls=\'req\', id=None):\n $if items:\n \n \n $for k, v in items:\n \n \n
VariableValue
$k
$prettify(v)
\n $else:\n

No data.

\n\n
\n

$exception_type at $ctx.path

\n

$exception_value

\n \n \n \n \n \n \n
Python$frames[0].filename in $frames[0].function, line $frames[0].lineno
Web$ctx.method $ctx.home$ctx.path
\n
\n
\n

Traceback (innermost first)

\n\n
\n\n
\n$if ctx.output or ctx.headers:\n

Response so far

\n

HEADERS

\n $:dicttable_items(ctx.headers)\n\n

BODY

\n

\n $ctx.output\n

\n \n

Request information

\n\n

INPUT

\n$:dicttable(web.input(_unicode=False))\n\n\n$:dicttable(web.cookies())\n\n

META

\n$ newctx = [(k, v) for (k, v) in ctx.iteritems() if not k.startswith(\'_\') and not isinstance(v, dict)]\n$:dicttable(dict(newctx))\n\n

ENVIRONMENT

\n$:dicttable(ctx.env)\n
\n\n
\n

\n You\'re seeing this error because you have web.config.debug\n set to True. Set that to False if you don\'t want to see this.\n

\n
\n\n\n\n' djangoerror_r = None def djangoerror(): global djangoerror_r def _get_lines_from_file(filename, lineno, context_lines): """ Returns context_lines before and after lineno from file. Returns (pre_context_lineno, pre_context, context_line, post_context). """ try: source = open(filename).readlines() lower_bound = max(0, lineno - context_lines) upper_bound = lineno + context_lines pre_context = [ line.strip('\n') for line in source[lower_bound:lineno] ] context_line = source[lineno].strip('\n') post_context = [ line.strip('\n') for line in source[lineno + 1:upper_bound] ] return (lower_bound, pre_context, context_line, post_context) except (OSError, IOError, IndexError): return (None, [], None, []) return None exception_type, exception_value, tback = sys.exc_info() frames = [] while tback is not None: filename = tback.tb_frame.f_code.co_filename function = tback.tb_frame.f_code.co_name lineno = tback.tb_lineno - 1 lineno += tback.tb_frame.f_locals.get('__lineoffset__', 0) pre_context_lineno, pre_context, context_line, post_context = _get_lines_from_file(filename, lineno, 7) if '__hidetraceback__' not in tback.tb_frame.f_locals: frames.append(web.storage({'tback': tback, 'filename': filename, 'function': function, 'lineno': lineno, 'vars': tback.tb_frame.f_locals, 'id': id(tback), 'pre_context': pre_context, 'context_line': context_line, 'post_context': post_context, 'pre_context_lineno': pre_context_lineno})) tback = tback.tb_next frames.reverse() def prettify(x): try: out = pprint.pformat(x) except Exception as e: out = '[could not display: <' + e.__class__.__name__ + ': ' + str(e) + '>]' return out if djangoerror_r is None: djangoerror_r = Template(djangoerror_t, filename=__file__, filter=websafe) t = djangoerror_r globals = {'ctx': web.ctx, 'web': web, 'dict': dict, 'str': str, 'prettify': prettify} update_globals_template(t, globals) return t(exception_type, exception_value, frames) def debugerror(): """ A replacement for `internalerror` that presents a nice page with lots of debug information for the programmer. (Based on the beautiful 500 page from [Django](http://djangoproject.com/), designed by [Wilson Miner](http://wilsonminer.com/).) """ return web._InternalError(djangoerror()) def emailerrors(to_address, olderror, from_address = None): """ Wraps the old `internalerror` handler (pass as `olderror`) to additionally email all errors to `to_address`, to aid in debugging production websites. Emails contain a normal text traceback as well as an attachment containing the nice `debugerror` page. """ from_address = from_address or to_address def emailerrors_internal(): error = olderror() tb = sys.exc_info() error_name = tb[0] error_value = tb[1] tb_txt = ''.join(traceback.format_exception(*tb)) path = web.ctx.path request = web.ctx.method + ' ' + web.ctx.home + web.ctx.fullpath message = '\n%s\n\n%s\n\n' % (request, tb_txt) sendmail('your buggy site <%s>' % from_address, 'the bugfixer <%s>' % to_address, 'bug: %(error_name)s: %(error_value)s (%(path)s)' % locals(), message, attachments=[dict(filename='bug.html', content=safestr(djangoerror()))]) return error return emailerrors_internal if __name__ == '__main__': urls = ('/', 'index') from .application import application app = application(urls, globals()) app.internalerror = debugerror class index: def GET(self): thisdoesnotexist app.run()