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Þ'¯°ÌME[YéïĵÂCå½ Ué©Áû'Ê9%eÔðNU”ë‘ÌsD3/®+UI˜9h.WC”빓$#:pz:YÓ ¿xž* ³$Í +$kñAŠ‹†¢ Uê>¸)_š¬÷©ßAÂÔb9ÇU ¯¾á•9¯ÏÏ÷O÷¼¼Fähal1‰3Ì[Ïr•´UCksNÐ] R‘¸¥H+§Šé†c©vÖÞ0iÓ76s†î!§=ß ¼~Ô'°Ãmäoäš³ªøi1úÉ)³yV8 CLÄØÁ‘WYïi€H6ÖÑiámø^ÈY´°Ñ7¥Û*—Ñ©L«Qƒï—Ùrÿ ›£Ð*š¸ˆL©ˆ$ˆ ÷¾D§9È®«qbqC)–ˆïv´çñsÑVT­Ø, <àïºÀO«Jý·õ àfPìð .wFšir´þ’2_Y *Æ€x\« ì€9š@ Ž|F⇥ˆkZ@hÖÄ0t¿-<“‹qµ¾*ZL¤Ú)&BJpÓF5=$„at*Zš$’ÑtdûÝRI1 2Ž‰$€$I$#‰SÞ’Hë¬ï;Á$¡t$’`<(ñÇt)$‡Ð.Êf¢X’Kt=Éé$‚ˆªè¢oÝëòI%Rgcª÷ŠyI%¡‰ÿ !ñ)´õ $¤ Ô’IIGÿÙfrom __future__ import absolute_import import email.utils import mimetypes import re import six def guess_content_type(filename, default="application/octet-stream"): """ Guess the "Content-Type" of a file. :param filename: The filename to guess the "Content-Type" of using :mod:`mimetypes`. :param default: If no "Content-Type" can be guessed, default to `default`. """ if filename: return mimetypes.guess_type(filename)[0] or default return default def format_header_param_rfc2231(name, value): """ Helper function to format and quote a single header parameter using the strategy defined in RFC 2231. Particularly useful for header parameters which might contain non-ASCII values, like file names. This follows `RFC 2388 Section 4.4 `_. :param name: The name of the parameter, a string expected to be ASCII only. :param value: The value of the parameter, provided as ``bytes`` or `str``. :ret: An RFC-2231-formatted unicode string. """ if isinstance(value, six.binary_type): value = value.decode("utf-8") if not any(ch in value for ch in '"\\\r\n'): result = u'%s="%s"' % (name, value) try: result.encode("ascii") except (UnicodeEncodeError, UnicodeDecodeError): pass else: return result if six.PY2: # Python 2: value = value.encode("utf-8") # encode_rfc2231 accepts an encoded string and returns an ascii-encoded # string in Python 2 but accepts and returns unicode strings in Python 3 value = email.utils.encode_rfc2231(value, "utf-8") value = "%s*=%s" % (name, value) if six.PY2: # Python 2: value = value.decode("utf-8") return value _HTML5_REPLACEMENTS = { u"\u0022": u"%22", # Replace "\" with "\\". u"\u005C": u"\u005C\u005C", } # All control characters from 0x00 to 0x1F *except* 0x1B. _HTML5_REPLACEMENTS.update( { six.unichr(cc): u"%{:02X}".format(cc) for cc in range(0x00, 0x1F + 1) if cc not in (0x1B,) } ) def _replace_multiple(value, needles_and_replacements): def replacer(match): return needles_and_replacements[match.group(0)] pattern = re.compile( r"|".join([re.escape(needle) for needle in needles_and_replacements.keys()]) ) result = pattern.sub(replacer, value) return result def format_header_param_html5(name, value): """ Helper function to format and quote a single header parameter using the HTML5 strategy. Particularly useful for header parameters which might contain non-ASCII values, like file names. This follows the `HTML5 Working Draft Section 4.10.22.7`_ and matches the behavior of curl and modern browsers. .. _HTML5 Working Draft Section 4.10.22.7: https://w3c.github.io/html/sec-forms.html#multipart-form-data :param name: The name of the parameter, a string expected to be ASCII only. :param value: The value of the parameter, provided as ``bytes`` or `str``. :ret: A unicode string, stripped of troublesome characters. """ if isinstance(value, six.binary_type): value = value.decode("utf-8") value = _replace_multiple(value, _HTML5_REPLACEMENTS) return u'%s="%s"' % (name, value) # For backwards-compatibility. format_header_param = format_header_param_html5 class RequestField(object): """ A data container for request body parameters. :param name: The name of this request field. Must be unicode. :param data: The data/value body. :param filename: An optional filename of the request field. Must be unicode. :param headers: An optional dict-like object of headers to initially use for the field. :param header_formatter: An optional callable that is used to encode and format the headers. By default, this is :func:`format_header_param_html5`. """ def __init__( self, name, data, filename=None, headers=None, header_formatter=format_header_param_html5, ): self._name = name self._filename = filename self.data = data self.headers = {} if headers: self.headers = dict(headers) self.header_formatter = header_formatter @classmethod def from_tuples(cls, fieldname, value, header_formatter=format_header_param_html5): """ A :class:`~urllib3.fields.RequestField` factory from old-style tuple parameters. Supports constructing :class:`~urllib3.fields.RequestField` from parameter of key/value strings AND key/filetuple. A filetuple is a (filename, data, MIME type) tuple where the MIME type is optional. For example:: 'foo': 'bar', 'fakefile': ('foofile.txt', 'contents of foofile'), 'realfile': ('barfile.txt', open('realfile').read()), 'typedfile': ('bazfile.bin', open('bazfile').read(), 'image/jpeg'), 'nonamefile': 'contents of nonamefile field', Field names and filenames must be unicode. """ if isinstance(value, tuple): if len(value) == 3: filename, data, content_type = value else: filename, data = value content_type = guess_content_type(filename) else: filename = None content_type = None data = value request_param = cls( fieldname, data, filename=filename, header_formatter=header_formatter ) request_param.make_multipart(content_type=content_type) return request_param def _render_part(self, name, value): """ Overridable helper function to format a single header parameter. By default, this calls ``self.header_formatter``. :param name: The name of the parameter, a string expected to be ASCII only. :param value: The value of the parameter, provided as a unicode string. """ return self.header_formatter(name, value) def _render_parts(self, header_parts): """ Helper function to format and quote a single header. Useful for single headers that are composed of multiple items. E.g., 'Content-Disposition' fields. :param header_parts: A sequence of (k, v) tuples or a :class:`dict` of (k, v) to format as `k1="v1"; k2="v2"; ...`. """ parts = [] iterable = header_parts if isinstance(header_parts, dict): iterable = header_parts.items() for name, value in iterable: if value is not None: parts.append(self._render_part(name, value)) return u"; ".join(parts) def render_headers(self): """ Renders the headers for this request field. """ lines = [] sort_keys = ["Content-Disposition", "Content-Type", "Content-Location"] for sort_key in sort_keys: if self.headers.get(sort_key, False): lines.append(u"%s: %s" % (sort_key, self.headers[sort_key])) for header_name, header_value in self.headers.items(): if header_name not in sort_keys: if header_value: lines.append(u"%s: %s" % (header_name, header_value)) lines.append(u"\r\n") return u"\r\n".join(lines) def make_multipart( self, content_disposition=None, content_type=None, content_location=None ): """ Makes this request field into a multipart request field. This method overrides "Content-Disposition", "Content-Type" and "Content-Location" headers to the request parameter. :param content_type: The 'Content-Type' of the request body. :param content_location: The 'Content-Location' of the request body. """ self.headers["Content-Disposition"] = content_disposition or u"form-data" self.headers["Content-Disposition"] += u"; ".join( [ u"", self._render_parts( ((u"name", self._name), (u"filename", self._filename)) ), ] ) self.headers["Content-Type"] = content_type self.headers["Content-Location"] = content_location