完成第一版

Author: mikecovlee

build/imports/codec.cse

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+/*
+* Covariant Script Network Extension
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*
+* Copyright (C) 2018 Michael Lee(李登淳)
+* Email: [email protected]
+* Github: https://github.com/mikecovlee
+*/
+// Base32
+#include <cppcodec/base32_rfc4648.hpp>
+#include <cppcodec/base32_crockford.hpp>
+#include <cppcodec/base32_hex.hpp>
+// Base64
+#include <cppcodec/base64_rfc4648.hpp>
+#include <cppcodec/base64_url.hpp>
+#include <cppcodec/base64_url_unpadded.hpp>
+// CovScript DLL Header
+#include <covscript/dll.hpp>
+
+#define gen_invoker(NAME) [](const cs::string &str) -> cs::string { return NAME<std::string>(str); }
+
+void cs_extension_main(cs::name_space *ns)
+{
+	// Base32 root namespace
+	cs::namespace_t base32_ns = cs::make_shared_namespace<cs::name_space>();
+	// Base32 child namespace
+	cs::namespace_t base32_rfc4648_ns = cs::make_shared_namespace<cs::name_space>();
+	cs::namespace_t base32_crockford_ns = cs::make_shared_namespace<cs::name_space>();
+	cs::namespace_t base32_hex_ns = cs::make_shared_namespace<cs::name_space>();
+	// Base64 root namespace
+	cs::namespace_t base64_ns = cs::make_shared_namespace<cs::name_space>();
+	// Base64 child namespace
+	cs::namespace_t base64_rfc4648_ns = cs::make_shared_namespace<cs::name_space>();
+	cs::namespace_t base64_url_ns = cs::make_shared_namespace<cs::name_space>();
+	cs::namespace_t base64_url_unpadded_ns = cs::make_shared_namespace<cs::name_space>();
+	// Register
+	(*ns)
+	.add_var("base32", cs::make_namespace(base32_ns))
+	.add_var("base64", cs::make_namespace(base64_ns));
+	(*base32_ns)
+	.add_var("standard", cs::make_namespace(base32_rfc4648_ns))
+	.add_var("rfc4648", cs::make_namespace(base32_rfc4648_ns))
+	.add_var("crockford", cs::make_namespace(base32_crockford_ns))
+	.add_var("hex", cs::make_namespace(base32_hex_ns));
+	(*base32_rfc4648_ns)
+	.add_var("encode", cs::make_cni(gen_invoker(cppcodec::base32_rfc4648::encode), true))
+	.add_var("decode", cs::make_cni(gen_invoker(cppcodec::base32_rfc4648::decode), true));
+	(*base32_crockford_ns)
+	.add_var("encode", cs::make_cni(gen_invoker(cppcodec::base32_crockford::encode), true))
+	.add_var("decode", cs::make_cni(gen_invoker(cppcodec::base32_crockford::decode), true));
+	(*base32_hex_ns)
+	.add_var("encode", cs::make_cni(gen_invoker(cppcodec::base32_hex::encode), true))
+	.add_var("decode", cs::make_cni(gen_invoker(cppcodec::base32_hex::decode), true));
+	(*base64_ns)
+	.add_var("standard", cs::make_namespace(base64_rfc4648_ns))
+	.add_var("rfc4648", cs::make_namespace(base64_rfc4648_ns))
+	.add_var("url", cs::make_namespace(base64_url_ns))
+	.add_var("url_unpadded", cs::make_namespace(base64_url_unpadded_ns));
+	(*base64_rfc4648_ns)
+	.add_var("encode", cs::make_cni(gen_invoker(cppcodec::base64_rfc4648::encode), true))
+	.add_var("decode", cs::make_cni(gen_invoker(cppcodec::base64_rfc4648::decode), true));
+	(*base64_url_ns)
+	.add_var("encode", cs::make_cni(gen_invoker(cppcodec::base64_url::encode), true))
+	.add_var("decode", cs::make_cni(gen_invoker(cppcodec::base64_url::decode), true));
+	(*base64_url_unpadded_ns)
+	.add_var("encode", cs::make_cni(gen_invoker(cppcodec::base64_url_unpadded::encode), true))
+	.add_var("decode", cs::make_cni(gen_invoker(cppcodec::base64_url_unpadded::decode), true));
+}

codec.cpp

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+/**
+ *  Copyright (C) 2015 Topology LP
+ *  All rights reserved.
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a copy
+ *  of this software and associated documentation files (the "Software"), to
+ *  deal in the Software without restriction, including without limitation the
+ *  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ *  sell copies of the Software, and to permit persons to whom the Software is
+ *  furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in
+ *  all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ *  IN THE SOFTWARE.
+ */
+
+#ifndef CPPCODEC_BASE32_CROCKFORD
+#define CPPCODEC_BASE32_CROCKFORD
+
+#include "detail/codec.hpp"
+#include "detail/base32.hpp"
+
+namespace cppcodec {
+
+namespace detail {
+
+static constexpr const char base32_crockford_alphabet[] = {
+    '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', // at index 10
+    'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',           // 18 - no I
+    'J', 'K',                                         // 20 - no L
+    'M', 'N',                                         // 22 - no O
+    'P', 'Q', 'R', 'S', 'T',                          // 27 - no U
+    'V', 'W', 'X', 'Y', 'Z'                           // 32
+};
+
+class base32_crockford_base
+{
+public:
+    static CPPCODEC_ALWAYS_INLINE constexpr size_t alphabet_size() {
+        static_assert(sizeof(base32_crockford_alphabet) == 32, "base32 alphabet must have 32 values");
+        return sizeof(base32_crockford_alphabet);
+    }
+    static CPPCODEC_ALWAYS_INLINE constexpr char symbol(alphabet_index_t idx)
+    {
+        return base32_crockford_alphabet[idx];
+    }
+    static CPPCODEC_ALWAYS_INLINE constexpr char normalized_symbol(char c)
+    {
+        // Hex decoding is always case-insensitive (even in RFC 4648), the question
+        // is only for encoding whether to use upper-case or lower-case letters.
+        return (c == 'O' || c == 'o') ? '0'
+            : (c == 'I' || c == 'i' || c == 'L' || c == 'l') ? '1'
+            : (c >= 'a' && c <= 'z') ? (c - 'a' + 'A')
+            : c;
+    }
+
+    static CPPCODEC_ALWAYS_INLINE constexpr bool generates_padding() { return false; }
+    static CPPCODEC_ALWAYS_INLINE constexpr bool requires_padding() { return false; }
+    static CPPCODEC_ALWAYS_INLINE constexpr bool is_padding_symbol(char) { return false; }
+    static CPPCODEC_ALWAYS_INLINE constexpr bool is_eof_symbol(char c) { return c == '\0'; }
+
+    static CPPCODEC_ALWAYS_INLINE constexpr bool should_ignore(char c) {
+        return c == '-'; // "Hyphens (-) can be inserted into strings [for readability]."
+    }
+};
+
+// base32_crockford is a concatenative iterative (i.e. streaming) interpretation of Crockford base32.
+// It interprets the statement "zero-extend the number to make its bit-length a multiple of 5"
+// to mean zero-extending it on the right.
+// (The other possible interpretation is base32_crockford_num, a place-based single number encoding system.
+// See http://merrigrove.blogspot.ca/2014/04/what-heck-is-base64-encoding-really.html for more info.)
+class base32_crockford : public base32_crockford_base
+{
+public:
+    template <typename Codec> using codec_impl = stream_codec<Codec, base32_crockford>;
+};
+
+} // namespace detail
+
+using base32_crockford = detail::codec<detail::base32<detail::base32_crockford>>;
+
+} // namespace cppcodec
+
+#endif // CPPCODEC_BASE32_CROCKFORD

include/cppcodec/base32_crockford.hpp

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+/**
+ *  Copyright (C) 2015 Topology LP
+ *  All rights reserved.
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a copy
+ *  of this software and associated documentation files (the "Software"), to
+ *  deal in the Software without restriction, including without limitation the
+ *  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ *  sell copies of the Software, and to permit persons to whom the Software is
+ *  furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in
+ *  all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ *  IN THE SOFTWARE.
+ */
+
+#ifndef CPPCODEC_BASE32_DEFAULT_CROCKFORD
+#define CPPCODEC_BASE32_DEFAULT_CROCKFORD
+
+#include "base32_crockford.hpp"
+
+using base32 = cppcodec::base32_crockford;
+
+#endif // CPPCODEC_BASE32_DEFAULT_CROCKFORD

include/cppcodec/base32_default_crockford.hpp

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+/**
+ *  Copyright (C) 2015, 2016 Topology LP
+ *  All rights reserved.
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a copy
+ *  of this software and associated documentation files (the "Software"), to
+ *  deal in the Software without restriction, including without limitation the
+ *  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ *  sell copies of the Software, and to permit persons to whom the Software is
+ *  furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in
+ *  all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ *  IN THE SOFTWARE.
+ */
+
+#ifndef CPPCODEC_BASE32_DEFAULT_HEX
+#define CPPCODEC_BASE32_DEFAULT_HEX
+
+#include "base32_hex.hpp"
+
+using base32 = cppcodec::base32_hex;
+
+#endif // CPPCODEC_BASE32_DEFAULT_HEX

include/cppcodec/base32_default_hex.hpp

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+/**
+ *  Copyright (C) 2015 Topology LP
+ *  All rights reserved.
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a copy
+ *  of this software and associated documentation files (the "Software"), to
+ *  deal in the Software without restriction, including without limitation the
+ *  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ *  sell copies of the Software, and to permit persons to whom the Software is
+ *  furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in
+ *  all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ *  IN THE SOFTWARE.
+ */
+
+#ifndef CPPCODEC_BASE32_DEFAULT_RFC4648
+#define CPPCODEC_BASE32_DEFAULT_RFC4648
+
+#include "base32_rfc4648.hpp"
+
+using base32 = cppcodec::base32_rfc4648;
+
+#endif // CPPCODEC_BASE32_DEFAULT_RFC4648

include/cppcodec/base32_default_rfc4648.hpp

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+/**
+ *  Copyright (C) 2015, 2016 Topology LP
+ *  All rights reserved.
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a copy
+ *  of this software and associated documentation files (the "Software"), to
+ *  deal in the Software without restriction, including without limitation the
+ *  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ *  sell copies of the Software, and to permit persons to whom the Software is
+ *  furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in
+ *  all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ *  THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ *  IN THE SOFTWARE.
+ */
+
+#ifndef CPPCODEC_BASE32_HEX
+#define CPPCODEC_BASE32_HEX
+
+#include "detail/codec.hpp"
+#include "detail/base32.hpp"
+
+namespace cppcodec {
+
+namespace detail {
+
+// RFC 4648 uses a simple alphabet: A-Z starting at index 0, then 2-7 starting at index 26.
+static constexpr const char base32_hex_alphabet[] = {
+    '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
+    'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K',
+    'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V'
+};
+
+class base32_hex
+{
+public:
+    template <typename Codec> using codec_impl = stream_codec<Codec, base32_hex>;
+
+    static CPPCODEC_ALWAYS_INLINE constexpr size_t alphabet_size() {
+        static_assert(sizeof(base32_hex_alphabet) == 32, "base32 alphabet must have 32 values");
+        return sizeof(base32_hex_alphabet);
+    }
+    static CPPCODEC_ALWAYS_INLINE constexpr char symbol(alphabet_index_t idx)
+    {
+        return base32_hex_alphabet[idx];
+    }
+    static CPPCODEC_ALWAYS_INLINE constexpr char normalized_symbol(char c)
+    {
+        // Lower-case letters are accepted, though not generally expected.
+        return (c >= 'a' && c <= 'v') ? (c - 'a' + 'A') : c;
+    }
+
+    static CPPCODEC_ALWAYS_INLINE constexpr bool generates_padding() { return true; }
+    static CPPCODEC_ALWAYS_INLINE constexpr bool requires_padding() { return true; }
+    static CPPCODEC_ALWAYS_INLINE constexpr char padding_symbol() { return '='; }
+    static CPPCODEC_ALWAYS_INLINE constexpr bool is_padding_symbol(char c) { return c == '='; }
+    static CPPCODEC_ALWAYS_INLINE constexpr bool is_eof_symbol(char c) { return c == '\0'; }
+
+    // RFC4648 does not specify any whitespace being allowed in base32 encodings.
+    static CPPCODEC_ALWAYS_INLINE constexpr bool should_ignore(char) { return false; }
+};
+
+} // namespace detail
+
+using base32_hex = detail::codec<detail::base32<detail::base32_hex>>;
+
+} // namespace cppcodec
+
+#endif // CPPCODEC_BASE32_HEX