JSON::WebToken(3pm)

1JSON::WebToken(3)     User Contributed Perl Documentation    JSON::WebToken(3)
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NAME

6       JSON::WebToken - JSON Web Token (JWT) implementation
7

SYNOPSIS

9         use Test::More;
10         use JSON;
11         use JSON::WebToken;
12
13         my $claims = {
14             iss => 'joe',
15             exp => 1300819380,
16             'http://example.com/is_root' => JSON::true,
17         };
18         my $secret = 'secret';
19
20         my $jwt = encode_jwt $claims, $secret;
21         my $got = decode_jwt $jwt, $secret;
22         is_deeply $got, $claims;
23
24         done_testing;
25

DESCRIPTION

27       JSON::WebToken is JSON Web Token (JWT) implementation for Perl
28
29       THIS MODULE IS ALPHA LEVEL INTERFACE.
30

METHODS

32   encode($claims [, $secret, $algorithm, $extra_headers ]) : String
33       This method is encoding JWT from hash reference.
34
35         my $jwt = JSON::WebToken->encode({
36             iss => 'joe',
37             exp => 1300819380,
38             'http://example.com/is_root' => JSON::true,
39         }, 'secret');
40         # $jwt = join '.',
41         #     'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9',
42         #     'eyJleHAiOjEzMDA4MTkzODAsImh0dHA6Ly9leGFtcGxlLmNvbS9pc19yb290Ijp0cnVlLCJpc3MiOiJqb2UifQ'
43         #     '4ldFxjibgJGz_uaIRCIq89b5ipR-sbI2Uq7B2WNEDs0'
44
45       Default encryption algorithm is "HS256". You can change algorithm as
46       following:
47
48         my $pricate_key_string = '...';
49         my $public_key_string  = '...';
50
51         my $jwt = JSON::WebToken->encode({
52             iss => 'joe',
53             exp => 1300819380,
54             'http://example.com/is_root' => JSON::true,
55         }, $pricate_key_string, 'RS256');
56
57         my $claims = JSON::WebToken->decode($jwt, $public_key_string);
58
59       When you use RS256, RS384 or RS512 algorithm then, We need
60       Crypt::OpenSSL::RSA.
61
62       If you want to create a "Plaintext JWT", should be specify "none" for
63       the algorithm.
64
65         my $jwt = JSON::WebToken->encode({
66             iss => 'joe',
67             exp => 1300819380,
68             'http://example.com/is_root' => JSON::true,
69         }, '', 'none');
70         # $jwt = join '.',
71         #     'eyJhbGciOiJub25lIiwidHlwIjoiSldUIn0',
72         #     'eyJleHAiOjEzMDA4MTkzODAsImh0dHA6Ly9leGFtcGxlLmNvbS9pc19yb290Ijp0cnVlLCJpc3MiOiJqb2UifQ',
73         #     ''
74
75   decode($jwt [, $secret, $verify_signature, $accepted_algorithms ]) : HASH
76       This method is decoding hash reference from JWT string.
77
78         my $claims = JSON::WebToken->decode($jwt, $secret, 1, ["RS256"]);
79
80       Any signing algorithm (except "none") is acceptable by default, so you
81       should check it with $accepted_algorithms parameter.
82
83   add_signing_algorithm($algorithm, $class)
84       This method is adding signing algorithm.
85
86         # resolve JSON::WebToken::Crypt::MYALG
87         JSON::WebToken->add_signing_algorithm('MYALGXXX'   => 'MYALG');
88
89         # resolve Some::Class::Algorithm
90         JSON::WebToken->add_signing_algorithm('SOMEALGXXX' => '+Some::Class::Algorithm');
91
92       SEE ALSO JSON::WebToken::Crypt::HMAC or JSON::WebToken::Crypt::RAS.
93

FUNCTIONS

95   encode_jwt($claims [, $secret, $algorithm, $extra_headers ]) : String
96       Same as encode() method.
97
98   decode_jwt($jwt [, $secret, $verify_signature, $accepted_algorithms ]) :
99       Hash
100       Same as decode() method.
101

ERROR CODES

103       JSON::WebToken::Exception will be thrown with following code.
104
105   ERROR_JWT_INVALID_PARAMETER
106       When some method arguments are not valid.
107
108   ERROR_JWT_MISSING_SECRET
109       When secret is required. ("alg != "none"")
110
111   ERROR_JWT_INVALID_SEGMENT_COUNT
112       When JWT segment count is not between 2 and 4.
113
114   ERROR_JWT_INVALID_SEGMENT_ENCODING
115       When each JWT segment is not encoded by base64url.
116
117   ERROR_JWT_UNWANTED_SIGNATURE
118       When "alg == "none"" but signature segment found.
119
120   ERROR_JWT_INVALID_SIGNATURE
121       When JWT signature is invalid.
122
123   ERROR_JWT_NOT_SUPPORTED_SIGNING_ALGORITHM
124       When given signing algorithm is not supported.
125
126   ERROR_JWT_UNACCEPTABLE_ALGORITHM
127       When given signing algorithm is not included in acceptable_algorithms.
128

AUTHOR

130       xaicron <xaicron@cpan.org>
131
132       zentooo
133

COPYRIGHT

135       Copyright 2012 - xaicron
136

LICENSE

138       This library is free software; you can redistribute it and/or modify it
139       under the same terms as Perl itself.
140