51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
# File 'lib/rdio/simple_om.rb', line 51
def self.om(consumer, url, post_params, token=nil, method='POST', realm=nil)
method.upcase!
if post_params.is_a?(Array)
params = post_params
else
params = post_params.collect
end
url = URI.parse(url)
url.scheme = url.scheme.downcase
url.user = url.password = nil
url.host.downcase!
if url.query
CGI.parse(url.query).each { |k,vs| vs.each { |v| params.push([k,v]) } }
end
url.query = nil
url.fragment = nil
params = params + [
['oauth_version', '1.0'],
['oauth_timestamp', Time.now.to_i.to_s],
['oauth_nonce', rand(1000000).to_s],
['oauth_signature_method', 'HMAC-SHA1'],
['oauth_consumer_key', consumer[0]],
]
hmac_key = consumer[1] + '&'
if token != nil
params.push ['oauth_token', token[0]]
hmac_key += token[1]
end
params.sort!
normalized_params = (params.collect {|p| percent_encode(p[0])+'='+percent_encode(p[1])}).join '&'
signature_base_string = (percent_encode(method) +
'&' + percent_encode(url.to_s) +
'&' + percent_encode(normalized_params))
hmac = Digest::HMAC.new(hmac_key, Digest::SHA1)
hmac.update(signature_base_string)
oauth_signature = [hmac.digest].pack('m0').strip
if realm
authorization_params = [['realm', realm]]
else
authorization_params = []
end
authorization_params.push(['oauth_signature', oauth_signature])
oauth_params = ['oauth_version', 'oauth_timestamp', 'oauth_nonce',
'oauth_signature_method', 'oauth_signature',
'oauth_consumer_key', 'oauth_token']
authorization_params.concat(params.select { |param| nil != oauth_params.index(param[0]) })
return 'OAuth ' + (authorization_params.collect {|param| '%s="%s"' % param}).join(', ')
end
|