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92f7d43c5d
ub64dec and ub64enc are the base64url equivalent of b64dec and base64
converters. base64url encoding is the "URL and Filename Safe Alphabet"
variant of base64 encoding. It is also used in in JWT (JSON Web Token)
standard.
RFC1421 mention in base64.c file is deprecated so it was replaced with
RFC4648 to which existing converters, base64/b64dec, still apply.
Example:
HAProxy:
http-request return content-type text/plain lf-string %[req.hdr(Authorization),word(2,.),ub64dec]
Client:
Token=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VyIjoiZm9vIiwia2V5IjoiY2hhZTZBaFhhaTZlIn0.5VsVj7mdxVvo1wP5c0dVHnr-S_khnIdFkThqvwukmdg
$ curl -H "Authorization: Bearer ${TOKEN}" http://haproxy.local
{"user":"foo","key":"chae6AhXai6e"}
29 lines
878 B
C
29 lines
878 B
C
/*
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* include/haproxy/base64.h
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* Ascii to Base64 conversion as described in RFC1421.
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*
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* Copyright 2006-2020 Willy Tarreau <w@1wt.eu>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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*/
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#ifndef _HAPROXY_BASE64_H
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#define _HAPROXY_BASE64_H
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#include <haproxy/api.h>
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int a2base64(char *in, int ilen, char *out, int olen);
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int a2base64url(const char *in, size_t ilen, char *out, size_t olen);
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int base64dec(const char *in, size_t ilen, char *out, size_t olen);
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int base64urldec(const char *in, size_t ilen, char *out, size_t olen);
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const char *s30tob64(int in, char *out);
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int b64tos30(const char *in);
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extern const char base64tab[];
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#endif /* _HAPROXY_BASE64_H */
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