Grammalecte  Check-in [f1a0fc04fc]

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Bottle is a fast and simple micro-framework for small web applications. It
offers request dispatching (Routes) with url parameter support, templates,
a built-in HTTP Server and adapters for many third party WSGI/HTTP-server and
template engines - all in a single file and with no dependencies other than the
Python Standard Library.

Homepage and documentation: http://bottlepy.org/

Copyright (c) 2016, Marcel Hellkamp.
License: MIT (see LICENSE for details)
"""

from __future__ import with_statement

__author__ = 'Marcel Hellkamp'
__version__ = '0.12.13'
__license__ = 'MIT'

# The gevent server adapter needs to patch some modules before they are imported
# This is why we parse the commandline parameters here but handle them later
if __name__ == '__main__':
    from optparse import OptionParser
    _cmd_parser = OptionParser(usage="usage: %prog [options] package.module:app")

            raise AttributeError('Attribute %r not defined.' % name)

    def __setattr__(self, name, value):
        if name == 'environ': return object.__setattr__(self, name, value)
        self.environ['bottle.request.ext.%s'%name] = value


def _hkey(key):
    if '\n' in key or '\r' in key or '\0' in key:
        raise ValueError("Header names must not contain control characters: %r" % key)
    return key.title().replace('_', '-')


def _hval(value):
    value = tonat(value)
    if '\n' in value or '\r' in value or '\0' in value:
        raise ValueError("Header value must not contain control characters: %r" % value)
    return value



class HeaderProperty(object):
    def __init__(self, name, reader=None, writer=None, default=''):
        self.name, self.default = name, default
        self.reader, self.writer = reader, writer
        self.__doc__ = 'Current value of the %r header.' % name.title()

    def __get__(self, obj, cls):
        if obj is None: return self
        value = obj.get_header(self.name, self.default)
        return self.reader(value) if self.reader else value

    def __set__(self, obj, value):
        obj[self.name] = self.writer(value) if self.writer else value

    def __delete__(self, obj):
        del obj[self.name]


class BaseResponse(object):
    """ Storage class for a response body as well as headers and cookies.

        This class does support dict-like case-insensitive item-access to
        headers, but is NOT a dict. Most notably, iterating over a response

        hdict = HeaderDict()
        hdict.dict = self._headers
        return hdict

    def __contains__(self, name): return _hkey(name) in self._headers
    def __delitem__(self, name):  del self._headers[_hkey(name)]
    def __getitem__(self, name):  return self._headers[_hkey(name)][-1]
    def __setitem__(self, name, value): self._headers[_hkey(name)] = [_hval(value)]

    def get_header(self, name, default=None):
        ''' Return the value of a previously defined header. If there is no
            header with that name, return a default value. '''
        return self._headers.get(_hkey(name), [default])[-1]

    def set_header(self, name, value):
        ''' Create a new response header, replacing any previously defined
            headers with the same name. '''
        self._headers[_hkey(name)] = [_hval(value)]

    def add_header(self, name, value):
        ''' Add an additional response header, not removing duplicates. '''
        self._headers.setdefault(_hkey(name), []).append(_hval(value))

    def iter_headers(self):
        ''' Yield (header, value) tuples, skipping headers that are not
            allowed with the current response status code. '''
        return self.headerlist

    @property

    def __getattr__(self, name, default=unicode()):
        # Without this guard, pickle generates a cryptic TypeError:
        if name.startswith('__') and name.endswith('__'):
            return super(FormsDict, self).__getattr__(name)
        return self.getunicode(name, default=default)


class HeaderDict(MultiDict):
    """ A case-insensitive version of :class:`MultiDict` that defaults to
        replace the old value instead of appending it. """

    def __init__(self, *a, **ka):
        self.dict = {}
        if a or ka: self.update(*a, **ka)

    def __contains__(self, key): return _hkey(key) in self.dict
    def __delitem__(self, key): del self.dict[_hkey(key)]
    def __getitem__(self, key): return self.dict[_hkey(key)][-1]
    def __setitem__(self, key, value): self.dict[_hkey(key)] = [_hval(value)]
    def append(self, key, value): self.dict.setdefault(_hkey(key), []).append(_hval(value))

    def replace(self, key, value): self.dict[_hkey(key)] = [_hval(value)]
    def getall(self, key): return self.dict.get(_hkey(key)) or []
    def get(self, key, default=None, index=-1):
        return MultiDict.get(self, _hkey(key), default, index)
    def filter(self, names):
        for name in (_hkey(n) for n in names):
            if name in self.dict:
                del self.dict[name]


class WSGIHeaderDict(DictMixin):
    ''' This dict-like class wraps a WSGI environ dict and provides convenient
        access to HTTP_* fields. Keys and values are native strings

        self.raw_filename = filename
        #: A :class:`HeaderDict` with additional headers (e.g. content-type)
        self.headers = HeaderDict(headers) if headers else HeaderDict()

    content_type = HeaderProperty('Content-Type')
    content_length = HeaderProperty('Content-Length', reader=int, default=-1)

    def get_header(self, name, default=None):
        """ Return the value of a header within the mulripart part. """
        return self.headers.get(name, default)

    @cached_property
    def filename(self):
        ''' Name of the file on the client file system, but normalized to ensure
            file system compatibility. An empty filename is returned as 'empty'.

            Only ASCII letters, digits, dashes, underscores and dots are
            allowed in the final filename. Accents are removed, if possible.

    _re_tok += '|([\]\}\)])'
    # 5,6: Keywords that start or continue a python block (only start of line)
    _re_tok += '|^([ \\t]*(?:if|for|while|with|try|def|class)\\b)' \
               '|^([ \\t]*(?:elif|else|except|finally)\\b)'
    # 7: Our special 'end' keyword (but only if it stands alone)
    _re_tok += '|((?:^|;)[ \\t]*end[ \\t]*(?=(?:%(block_close)s[ \\t]*)?\\r?$|;|#))'
    # 8: A customizable end-of-code-block template token (only end of line)
    _re_tok += '|(%(block_close)s[ \\t]*(?=\\r?$))'
    # 9: And finally, a single newline. The 10th token is 'everything else'
    _re_tok += '|(\\r?\\n)'

    # Match the start tokens of code areas in a template
    _re_split = '(?m)^[ \t]*(\\\\?)((%(line_start)s)|(%(block_start)s))(%%?)'
    # Match inline statements (may contain python strings)
    _re_inl = '%%(inline_start)s((?:%s|[^\'"\n]*?)+)%%(inline_end)s' % _re_inl