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authorThomas O'Dowd <[email protected]>2010-12-07 10:58:17 +0900
committerThomas O'Dowd <[email protected]>2010-12-07 10:58:17 +0900
commit105fc6e844319a34df72efe6b2eb4823626a7957 (patch)
tree122f4abb07b74c9e419acf591a44581fc543d739 /prebuild.delete
parent74ec1253e1a89f0bb266831f73716a24c0798dc1 (diff)
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Improve pad character handling in base64 MIME decoding functions
Implement the 'MAY' clauses from RFC4648 regarding the pad character to make mime_decode() and mime_decode_to_string() functions more tolerant of badly padded base64. The RFC is quoted below for easy reference. RFC4648 Section 3.3 with reference to MIME decoding: Furthermore, such specifications MAY ignore the pad character, "=", treating it as non-alphabet data, if it is present before the end of the encoded data. If more than the allowed number of pad characters is found at the end of the string (e.g., a base 64 string terminated with "==="), the excess pad characters MAY also be ignored.
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