Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.8/site-packages/oauthlib/oauth1/rfc5849/parameters.py: 26%

1""" 

2oauthlib.parameters 

3~~~~~~~~~~~~~~~~~~~ 

4 

5This module contains methods related to `section 3.5`_ of the OAuth 1.0a spec. 

6 

7.. _`section 3.5`: https://tools.ietf.org/html/rfc5849#section-3.5 

8""" 

9from urllib.parse import urlparse, urlunparse 

10 

11from oauthlib.common import extract_params, urlencode 

12 

13from . import utils 

14 

15 

16# TODO: do we need filter_params now that oauth_params are handled by Request? 

17# We can easily pass in just oauth protocol params. 

18@utils.filter_params 

19def prepare_headers(oauth_params, headers=None, realm=None): 

20 """**Prepare the Authorization header.** 

21 Per `section 3.5.1`_ of the spec. 

22 

23 Protocol parameters can be transmitted using the HTTP "Authorization" 

24 header field as defined by `RFC2617`_ with the auth-scheme name set to 

25 "OAuth" (case insensitive). 

26 

27 For example:: 

28 

29 Authorization: OAuth realm="Example", 

30 oauth_consumer_key="0685bd9184jfhq22", 

31 oauth_token="ad180jjd733klru7", 

32 oauth_signature_method="HMAC-SHA1", 

33 oauth_signature="wOJIO9A2W5mFwDgiDvZbTSMK%2FPY%3D", 

34 oauth_timestamp="137131200", 

35 oauth_nonce="4572616e48616d6d65724c61686176", 

36 oauth_version="1.0" 

37 

38 

39 .. _`section 3.5.1`: https://tools.ietf.org/html/rfc5849#section-3.5.1 

40 .. _`RFC2617`: https://tools.ietf.org/html/rfc2617 

41 """ 

42 headers = headers or {} 

43 

44 # Protocol parameters SHALL be included in the "Authorization" header 

45 # field as follows: 

46 authorization_header_parameters_parts = [] 

47 for oauth_parameter_name, value in oauth_params: 

48 # 1. Parameter names and values are encoded per Parameter Encoding 

49 # (`Section 3.6`_) 

50 # 

51 # .. _`Section 3.6`: https://tools.ietf.org/html/rfc5849#section-3.6 

52 escaped_name = utils.escape(oauth_parameter_name) 

53 escaped_value = utils.escape(value) 

54 

55 # 2. Each parameter's name is immediately followed by an "=" character 

56 # (ASCII code 61), a """ character (ASCII code 34), the parameter 

57 # value (MAY be empty), and another """ character (ASCII code 34). 

58 part = '{}="{}"'.format(escaped_name, escaped_value) 

59 

60 authorization_header_parameters_parts.append(part) 

61 

62 # 3. Parameters are separated by a "," character (ASCII code 44) and 

63 # OPTIONAL linear whitespace per `RFC2617`_. 

64 # 

65 # .. _`RFC2617`: https://tools.ietf.org/html/rfc2617 

66 authorization_header_parameters = ', '.join( 

67 authorization_header_parameters_parts) 

68 

69 # 4. The OPTIONAL "realm" parameter MAY be added and interpreted per 

70 # `RFC2617 section 1.2`_. 

71 # 

72 # .. _`RFC2617 section 1.2`: https://tools.ietf.org/html/rfc2617#section-1.2 

73 if realm: 

74 # NOTE: realm should *not* be escaped 

75 authorization_header_parameters = ('realm="%s", ' % realm + 

76 authorization_header_parameters) 

77 

78 # the auth-scheme name set to "OAuth" (case insensitive). 

79 authorization_header = 'OAuth %s' % authorization_header_parameters 

80 

81 # contribute the Authorization header to the given headers 

82 full_headers = {} 

83 full_headers.update(headers) 

84 full_headers['Authorization'] = authorization_header 

85 return full_headers 

86 

87 

88def _append_params(oauth_params, params): 

89 """Append OAuth params to an existing set of parameters. 

90 

91 Both params and oauth_params is must be lists of 2-tuples. 

92 

93 Per `section 3.5.2`_ and `3.5.3`_ of the spec. 

94 

95 .. _`section 3.5.2`: https://tools.ietf.org/html/rfc5849#section-3.5.2 

96 .. _`3.5.3`: https://tools.ietf.org/html/rfc5849#section-3.5.3 

97 

98 """ 

99 merged = list(params) 

100 merged.extend(oauth_params) 

101 # The request URI / entity-body MAY include other request-specific 

102 # parameters, in which case, the protocol parameters SHOULD be appended 

103 # following the request-specific parameters, properly separated by an "&" 

104 # character (ASCII code 38) 

105 merged.sort(key=lambda i: i[0].startswith('oauth_')) 

106 return merged 

107 

108 

109def prepare_form_encoded_body(oauth_params, body): 

110 """Prepare the Form-Encoded Body. 

111 

112 Per `section 3.5.2`_ of the spec. 

113 

114 .. _`section 3.5.2`: https://tools.ietf.org/html/rfc5849#section-3.5.2 

115 

116 """ 

117 # append OAuth params to the existing body 

118 return _append_params(oauth_params, body) 

119 

120 

121def prepare_request_uri_query(oauth_params, uri): 

122 """Prepare the Request URI Query. 

123 

124 Per `section 3.5.3`_ of the spec. 

125 

126 .. _`section 3.5.3`: https://tools.ietf.org/html/rfc5849#section-3.5.3 

127 

128 """ 

129 # append OAuth params to the existing set of query components 

130 sch, net, path, par, query, fra = urlparse(uri) 

131 query = urlencode( 

132 _append_params(oauth_params, extract_params(query) or [])) 

133 return urlunparse((sch, net, path, par, query, fra))