bbf6d9b026
Bugfix for feeds
- removed categories related and up
- load new books now working
- category random now working
login page is free of non accessible elements
boolean custom column is vivible in UI
books with only with certain languages can be shown
book shelfs can be deleted from UI
Anonymous user view is more resticted
Added browse of series in sidebar
Dependencys in vendor folder are updated to newer versions (licencs files are now present)
Bugfix editing Authors names
Made upload on windows working
557 lines
18 KiB
Python
557 lines
18 KiB
Python
# -*- coding: utf-8 -*-
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"""
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werkzeug.debug.tbtools
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~~~~~~~~~~~~~~~~~~~~~~
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This module provides various traceback related utility functions.
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:copyright: (c) 2014 by the Werkzeug Team, see AUTHORS for more details.
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:license: BSD.
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"""
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import re
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import os
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import sys
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import json
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import inspect
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import traceback
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import codecs
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from tokenize import TokenError
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from werkzeug.utils import cached_property, escape
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from werkzeug.debug.console import Console
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from werkzeug._compat import range_type, PY2, text_type, string_types, \
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to_native, to_unicode
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from werkzeug.filesystem import get_filesystem_encoding
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_coding_re = re.compile(br'coding[:=]\s*([-\w.]+)')
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_line_re = re.compile(br'^(.*?)$(?m)')
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_funcdef_re = re.compile(r'^(\s*def\s)|(.*(?<!\w)lambda(:|\s))|^(\s*@)')
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UTF8_COOKIE = b'\xef\xbb\xbf'
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system_exceptions = (SystemExit, KeyboardInterrupt)
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try:
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system_exceptions += (GeneratorExit,)
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except NameError:
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pass
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HEADER = u'''\
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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"http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<title>%(title)s // Werkzeug Debugger</title>
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<link rel="stylesheet" href="?__debugger__=yes&cmd=resource&f=style.css"
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type="text/css">
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<!-- We need to make sure this has a favicon so that the debugger does
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not by accident trigger a request to /favicon.ico which might
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change the application state. -->
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<link rel="shortcut icon"
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href="?__debugger__=yes&cmd=resource&f=console.png">
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<script src="?__debugger__=yes&cmd=resource&f=jquery.js"></script>
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<script src="?__debugger__=yes&cmd=resource&f=debugger.js"></script>
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<script type="text/javascript">
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var TRACEBACK = %(traceback_id)d,
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CONSOLE_MODE = %(console)s,
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EVALEX = %(evalex)s,
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EVALEX_TRUSTED = %(evalex_trusted)s,
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SECRET = "%(secret)s";
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</script>
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</head>
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<body>
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<div class="debugger">
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'''
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FOOTER = u'''\
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<div class="footer">
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Brought to you by <strong class="arthur">DON'T PANIC</strong>, your
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friendly Werkzeug powered traceback interpreter.
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</div>
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</div>
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<div class="pin-prompt">
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<div class="inner">
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<h3>Console Locked</h3>
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<p>
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The console is locked and needs to be unlocked by entering the PIN.
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You can find the PIN printed out on the standard output of your
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shell that runs the server.
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<form>
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<p>PIN:
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<input type=text name=pin size=14>
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<input type=submit name=btn value="Confirm Pin">
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</form>
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</div>
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</div>
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</body>
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</html>
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'''
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PAGE_HTML = HEADER + u'''\
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<h1>%(exception_type)s</h1>
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<div class="detail">
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<p class="errormsg">%(exception)s</p>
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</div>
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<h2 class="traceback">Traceback <em>(most recent call last)</em></h2>
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%(summary)s
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<div class="plain">
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<form action="/?__debugger__=yes&cmd=paste" method="post">
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<p>
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<input type="hidden" name="language" value="pytb">
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This is the Copy/Paste friendly version of the traceback. <span
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class="pastemessage">You can also paste this traceback into
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a <a href="https://gist.github.com/">gist</a>:
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<input type="submit" value="create paste"></span>
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</p>
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<textarea cols="50" rows="10" name="code" readonly>%(plaintext)s</textarea>
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</form>
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</div>
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<div class="explanation">
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The debugger caught an exception in your WSGI application. You can now
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look at the traceback which led to the error. <span class="nojavascript">
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If you enable JavaScript you can also use additional features such as code
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execution (if the evalex feature is enabled), automatic pasting of the
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exceptions and much more.</span>
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</div>
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''' + FOOTER + '''
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<!--
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%(plaintext_cs)s
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-->
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'''
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CONSOLE_HTML = HEADER + u'''\
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<h1>Interactive Console</h1>
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<div class="explanation">
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In this console you can execute Python expressions in the context of the
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application. The initial namespace was created by the debugger automatically.
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</div>
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<div class="console"><div class="inner">The Console requires JavaScript.</div></div>
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''' + FOOTER
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SUMMARY_HTML = u'''\
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<div class="%(classes)s">
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%(title)s
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<ul>%(frames)s</ul>
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%(description)s
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</div>
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'''
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FRAME_HTML = u'''\
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<div class="frame" id="frame-%(id)d">
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<h4>File <cite class="filename">"%(filename)s"</cite>,
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line <em class="line">%(lineno)s</em>,
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in <code class="function">%(function_name)s</code></h4>
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<div class="source">%(lines)s</div>
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</div>
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'''
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SOURCE_LINE_HTML = u'''\
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<tr class="%(classes)s">
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<td class=lineno>%(lineno)s</td>
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<td>%(code)s</td>
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</tr>
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'''
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def render_console_html(secret, evalex_trusted=True):
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return CONSOLE_HTML % {
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'evalex': 'true',
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'evalex_trusted': evalex_trusted and 'true' or 'false',
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'console': 'true',
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'title': 'Console',
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'secret': secret,
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'traceback_id': -1
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}
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def get_current_traceback(ignore_system_exceptions=False,
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show_hidden_frames=False, skip=0):
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"""Get the current exception info as `Traceback` object. Per default
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calling this method will reraise system exceptions such as generator exit,
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system exit or others. This behavior can be disabled by passing `False`
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to the function as first parameter.
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"""
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exc_type, exc_value, tb = sys.exc_info()
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if ignore_system_exceptions and exc_type in system_exceptions:
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raise
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for x in range_type(skip):
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if tb.tb_next is None:
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break
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tb = tb.tb_next
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tb = Traceback(exc_type, exc_value, tb)
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if not show_hidden_frames:
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tb.filter_hidden_frames()
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return tb
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class Line(object):
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"""Helper for the source renderer."""
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__slots__ = ('lineno', 'code', 'in_frame', 'current')
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def __init__(self, lineno, code):
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self.lineno = lineno
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self.code = code
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self.in_frame = False
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self.current = False
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def classes(self):
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rv = ['line']
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if self.in_frame:
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rv.append('in-frame')
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if self.current:
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rv.append('current')
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return rv
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classes = property(classes)
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def render(self):
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return SOURCE_LINE_HTML % {
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'classes': u' '.join(self.classes),
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'lineno': self.lineno,
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'code': escape(self.code)
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}
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class Traceback(object):
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"""Wraps a traceback."""
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def __init__(self, exc_type, exc_value, tb):
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self.exc_type = exc_type
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self.exc_value = exc_value
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if not isinstance(exc_type, str):
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exception_type = exc_type.__name__
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if exc_type.__module__ not in ('__builtin__', 'exceptions'):
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exception_type = exc_type.__module__ + '.' + exception_type
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else:
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exception_type = exc_type
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self.exception_type = exception_type
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# we only add frames to the list that are not hidden. This follows
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# the the magic variables as defined by paste.exceptions.collector
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self.frames = []
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while tb:
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self.frames.append(Frame(exc_type, exc_value, tb))
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tb = tb.tb_next
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def filter_hidden_frames(self):
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"""Remove the frames according to the paste spec."""
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if not self.frames:
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return
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new_frames = []
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hidden = False
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for frame in self.frames:
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hide = frame.hide
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if hide in ('before', 'before_and_this'):
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new_frames = []
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hidden = False
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if hide == 'before_and_this':
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continue
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elif hide in ('reset', 'reset_and_this'):
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hidden = False
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if hide == 'reset_and_this':
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continue
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elif hide in ('after', 'after_and_this'):
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hidden = True
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if hide == 'after_and_this':
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continue
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elif hide or hidden:
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continue
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new_frames.append(frame)
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# if we only have one frame and that frame is from the codeop
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# module, remove it.
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if len(new_frames) == 1 and self.frames[0].module == 'codeop':
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del self.frames[:]
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# if the last frame is missing something went terrible wrong :(
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elif self.frames[-1] in new_frames:
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self.frames[:] = new_frames
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def is_syntax_error(self):
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"""Is it a syntax error?"""
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return isinstance(self.exc_value, SyntaxError)
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is_syntax_error = property(is_syntax_error)
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def exception(self):
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"""String representation of the exception."""
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buf = traceback.format_exception_only(self.exc_type, self.exc_value)
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rv = ''.join(buf).strip()
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return rv.decode('utf-8', 'replace') if PY2 else rv
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exception = property(exception)
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def log(self, logfile=None):
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"""Log the ASCII traceback into a file object."""
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if logfile is None:
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logfile = sys.stderr
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tb = self.plaintext.rstrip() + u'\n'
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if PY2:
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tb = tb.encode('utf-8', 'replace')
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logfile.write(tb)
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def paste(self):
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"""Create a paste and return the paste id."""
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data = json.dumps({
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'description': 'Werkzeug Internal Server Error',
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'public': False,
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'files': {
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'traceback.txt': {
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'content': self.plaintext
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}
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}
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}).encode('utf-8')
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try:
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from urllib2 import urlopen
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except ImportError:
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from urllib.request import urlopen
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rv = urlopen('https://api.github.com/gists', data=data)
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resp = json.loads(rv.read().decode('utf-8'))
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rv.close()
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return {
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'url': resp['html_url'],
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'id': resp['id']
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}
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def render_summary(self, include_title=True):
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"""Render the traceback for the interactive console."""
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title = ''
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frames = []
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classes = ['traceback']
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if not self.frames:
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classes.append('noframe-traceback')
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if include_title:
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if self.is_syntax_error:
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title = u'Syntax Error'
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else:
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title = u'Traceback <em>(most recent call last)</em>:'
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for frame in self.frames:
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frames.append(u'<li%s>%s' % (
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frame.info and u' title="%s"' % escape(frame.info) or u'',
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frame.render()
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))
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if self.is_syntax_error:
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description_wrapper = u'<pre class=syntaxerror>%s</pre>'
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else:
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description_wrapper = u'<blockquote>%s</blockquote>'
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return SUMMARY_HTML % {
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'classes': u' '.join(classes),
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'title': title and u'<h3>%s</h3>' % title or u'',
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'frames': u'\n'.join(frames),
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'description': description_wrapper % escape(self.exception)
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}
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def render_full(self, evalex=False, secret=None,
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evalex_trusted=True):
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"""Render the Full HTML page with the traceback info."""
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exc = escape(self.exception)
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return PAGE_HTML % {
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'evalex': evalex and 'true' or 'false',
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'evalex_trusted': evalex_trusted and 'true' or 'false',
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'console': 'false',
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'title': exc,
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'exception': exc,
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'exception_type': escape(self.exception_type),
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'summary': self.render_summary(include_title=False),
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'plaintext': escape(self.plaintext),
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'plaintext_cs': re.sub('-{2,}', '-', self.plaintext),
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'traceback_id': self.id,
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'secret': secret
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}
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def generate_plaintext_traceback(self):
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"""Like the plaintext attribute but returns a generator"""
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yield u'Traceback (most recent call last):'
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for frame in self.frames:
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yield u' File "%s", line %s, in %s' % (
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frame.filename,
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frame.lineno,
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frame.function_name
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)
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yield u' ' + frame.current_line.strip()
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yield self.exception
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def plaintext(self):
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return u'\n'.join(self.generate_plaintext_traceback())
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plaintext = cached_property(plaintext)
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id = property(lambda x: id(x))
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class Frame(object):
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"""A single frame in a traceback."""
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def __init__(self, exc_type, exc_value, tb):
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self.lineno = tb.tb_lineno
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self.function_name = tb.tb_frame.f_code.co_name
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self.locals = tb.tb_frame.f_locals
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self.globals = tb.tb_frame.f_globals
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fn = inspect.getsourcefile(tb) or inspect.getfile(tb)
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if fn[-4:] in ('.pyo', '.pyc'):
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fn = fn[:-1]
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# if it's a file on the file system resolve the real filename.
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if os.path.isfile(fn):
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fn = os.path.realpath(fn)
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self.filename = to_unicode(fn, get_filesystem_encoding())
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self.module = self.globals.get('__name__')
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self.loader = self.globals.get('__loader__')
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self.code = tb.tb_frame.f_code
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# support for paste's traceback extensions
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self.hide = self.locals.get('__traceback_hide__', False)
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info = self.locals.get('__traceback_info__')
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if info is not None:
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try:
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info = text_type(info)
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except UnicodeError:
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info = str(info).decode('utf-8', 'replace')
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self.info = info
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def render(self):
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"""Render a single frame in a traceback."""
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return FRAME_HTML % {
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'id': self.id,
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'filename': escape(self.filename),
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'lineno': self.lineno,
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'function_name': escape(self.function_name),
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'lines': self.render_line_context(),
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}
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def render_line_context(self):
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before, current, after = self.get_context_lines()
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rv = []
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def render_line(line, cls):
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line = line.expandtabs().rstrip()
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stripped_line = line.strip()
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prefix = len(line) - len(stripped_line)
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rv.append(
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'<pre class="line %s"><span class="ws">%s</span>%s</pre>' % (
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cls, ' ' * prefix, escape(stripped_line) or ' '))
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for line in before:
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render_line(line, 'before')
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render_line(current, 'current')
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for line in after:
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render_line(line, 'after')
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return '\n'.join(rv)
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def get_annotated_lines(self):
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"""Helper function that returns lines with extra information."""
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lines = [Line(idx + 1, x) for idx, x in enumerate(self.sourcelines)]
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# find function definition and mark lines
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if hasattr(self.code, 'co_firstlineno'):
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lineno = self.code.co_firstlineno - 1
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while lineno > 0:
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if _funcdef_re.match(lines[lineno].code):
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break
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lineno -= 1
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try:
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offset = len(inspect.getblock([x.code + '\n' for x
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in lines[lineno:]]))
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except TokenError:
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offset = 0
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for line in lines[lineno:lineno + offset]:
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line.in_frame = True
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# mark current line
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try:
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lines[self.lineno - 1].current = True
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except IndexError:
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pass
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return lines
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def eval(self, code, mode='single'):
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"""Evaluate code in the context of the frame."""
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if isinstance(code, string_types):
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if PY2 and isinstance(code, unicode): # noqa
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code = UTF8_COOKIE + code.encode('utf-8')
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code = compile(code, '<interactive>', mode)
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return eval(code, self.globals, self.locals)
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@cached_property
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def sourcelines(self):
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"""The sourcecode of the file as list of unicode strings."""
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# get sourcecode from loader or file
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source = None
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if self.loader is not None:
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try:
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if hasattr(self.loader, 'get_source'):
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source = self.loader.get_source(self.module)
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elif hasattr(self.loader, 'get_source_by_code'):
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source = self.loader.get_source_by_code(self.code)
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except Exception:
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# we munch the exception so that we don't cause troubles
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# if the loader is broken.
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pass
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if source is None:
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try:
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f = open(to_native(self.filename, get_filesystem_encoding()),
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mode='rb')
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except IOError:
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return []
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try:
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source = f.read()
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finally:
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f.close()
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# already unicode? return right away
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if isinstance(source, text_type):
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return source.splitlines()
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|
|
# yes. it should be ascii, but we don't want to reject too many
|
|
# characters in the debugger if something breaks
|
|
charset = 'utf-8'
|
|
if source.startswith(UTF8_COOKIE):
|
|
source = source[3:]
|
|
else:
|
|
for idx, match in enumerate(_line_re.finditer(source)):
|
|
match = _coding_re.search(match.group())
|
|
if match is not None:
|
|
charset = match.group(1)
|
|
break
|
|
if idx > 1:
|
|
break
|
|
|
|
# on broken cookies we fall back to utf-8 too
|
|
charset = to_native(charset)
|
|
try:
|
|
codecs.lookup(charset)
|
|
except LookupError:
|
|
charset = 'utf-8'
|
|
|
|
return source.decode(charset, 'replace').splitlines()
|
|
|
|
def get_context_lines(self, context=5):
|
|
before = self.sourcelines[self.lineno - context - 1:self.lineno - 1]
|
|
past = self.sourcelines[self.lineno:self.lineno + context]
|
|
return (
|
|
before,
|
|
self.current_line,
|
|
past,
|
|
)
|
|
|
|
@property
|
|
def current_line(self):
|
|
try:
|
|
return self.sourcelines[self.lineno - 1]
|
|
except IndexError:
|
|
return u''
|
|
|
|
@cached_property
|
|
def console(self):
|
|
return Console(self.globals, self.locals)
|
|
|
|
id = property(lambda x: id(x))
|