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- ///////////////////////////////////////////////////////////////////////////////
- //
- // Copyright (C) 2008-2012 Artyom Beilis (Tonkikh) <artyomtnk@yahoo.com>
- //
- // See accompanying file COPYING.TXT file for licensing details.
- //
- ///////////////////////////////////////////////////////////////////////////////
- #ifndef CPPCMS_BASE64_H
- #define CPPCMS_BASE64_H
-
- #include <cppcms/defs.h>
- #include <string>
- #include <iosfwd>
-
-
- namespace cppcms {
- ///
- /// \brief this namespace provides functions useful for modified Base64 encoding for URL.
- /// This encoding does not insert newline characters, do not pad the text with = character and
- /// use "_" and "-" instead of "+" and "/" characters reserved by URL format for special purposes.
- ///
- namespace b64url {
-
- ///
- /// Calculate required buffer size of base64-url compatible encoding for source of size \a s
- ///
- int CPPCMS_API encoded_size(size_t s);
- ///
- /// Calculate required buffer size of base64-url compatible decoding for source of size \a s
- ///
- /// Note, if original size is invalid, negative value is returned
- ///
- int CPPCMS_API decoded_size(size_t s);
-
- ///
- /// Perform base64 URL encoding of the binary data in range [\a begin,\a end), and store it to output buffer
- /// \a target. The size of target storage should have a capacity calculated with encoded_size(end-begin).
- ///
- /// Pointer to the first character directly after text string ends is returned.
- ///
- unsigned char CPPCMS_API *encode(unsigned char const *begin,unsigned char const *end,unsigned char *target);
- ///
- /// Perform base64 URL encoding of the binary data in range [\a begin,\a end), and write it to output stream
- ///
- void encode(unsigned char const *begin,unsigned char const *end,std::ostream &output);
-
- ///
- /// Perform base64 URL decoding of the binary data in range [\a begin,\a end), and store it to output buffer
- /// \a target. The size of target storage should have a capacity calculated with encoded_size(end-begin).
- ///
- /// Pointer to the first character directly after text string ends is returned. Invalid codes are substituted
- /// by 0 values.
- ///
- ///
- unsigned char CPPCMS_API *decode(unsigned char const *begin,unsigned char const *end,unsigned char *target);
-
- ///
- /// Perform base64 URL decoding of the textual data \a input, and store it to \a output.
- ///
- /// If the source is invalid returns false
- ///
- ///
- bool CPPCMS_API decode(std::string const &input,std::string &output);
- ///
- /// Perform base64 URL encoding of the binary data \a input, and return it
- ///
- ///
- std::string CPPCMS_API encode(std::string const &input);
- }
- }
-
-
- #endif
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