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Implement openssl_sign/openssl_verify in light runtime (#1106)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,139 @@ | ||
| // Compiler for PHP (aka KPHP) | ||
| // Copyright (c) 2024 LLC «V Kontakte» | ||
| // Distributed under the GPL v3 License, see LICENSE.notice.txt | ||
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| #include "runtime-light/stdlib/hash/hash-functions.h" | ||
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| static int base64_encode(const unsigned char *const input, int ilen, char *output, int olen) { | ||
| static const char *const symbols64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; | ||
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| auto next_input_uchar = [input, ilen](int &i) { | ||
| if (i >= ilen) { | ||
| return static_cast<unsigned char>(0); | ||
| } | ||
| return input[i++]; | ||
| }; | ||
|
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| int j = 0; | ||
| char buf[4]; | ||
| for (int i = 0; i < ilen;) { | ||
| int old_i = i; | ||
| int o = next_input_uchar(i); | ||
| o <<= 8; | ||
| o |= next_input_uchar(i); | ||
| o <<= 8; | ||
| o |= next_input_uchar(i); | ||
| int l = i - old_i; | ||
| assert(l > 0 && l <= 3); | ||
| for (int u = 3; u >= 0; u--) { | ||
| buf[u] = symbols64[o & 63]; | ||
| o >>= 6; | ||
| } | ||
| if (l == 1) { | ||
| buf[2] = buf[3] = '='; | ||
| } else if (l == 2) { | ||
| buf[3] = '='; | ||
| } | ||
| if (j + 3 >= olen) { | ||
| return -1; | ||
| } | ||
| memcpy(&output[j], buf, 4); | ||
| j += 4; | ||
| } | ||
| if (j >= olen) { | ||
| return -1; | ||
| } | ||
| output[j++] = 0; | ||
| return 0; | ||
| } | ||
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| string f$base64_encode(const string &s) { | ||
| int result_len = (s.size() + 2) / 3 * 4; | ||
| string res(result_len, false); | ||
| result_len = base64_encode(reinterpret_cast<const unsigned char *>(s.c_str()), static_cast<int>(s.size()), res.buffer(), result_len + 1); | ||
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| if (result_len != 0) { | ||
| return {}; | ||
| } | ||
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| return res; | ||
| } | ||
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| static constexpr short base64_reverse_table[256] = {-2, -2, -2, -2, -2, -2, -2, -2, -2, -1, -1, -2, -2, -1, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, | ||
| -2, -2, -2, -2, -2, -2, -1, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, 62, -2, -2, -2, 63, 52, 53, 54, 55, | ||
| 56, 57, 58, 59, 60, 61, -2, -2, -2, -2, -2, -2, -2, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, | ||
| 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, -2, -2, -2, -2, -2, -2, 26, 27, 28, 29, 30, 31, 32, | ||
| 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, -2, -2, -2, -2, -2, -2, -2, | ||
| -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, | ||
| -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, | ||
| -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, | ||
| -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, | ||
| -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -2}; | ||
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| /* Function f$base64_decode ported from https://github.com/php/php-src/blob/master/ext/standard/base64.c#L130 | ||
| * "This product includes PHP software, freely available from <http://www.php.net/software/>". | ||
| */ | ||
| Optional<string> f$base64_decode(const string &s, bool strict) { | ||
| /* run through the whole string, converting as we go */ | ||
| string::size_type result_len = (s.size() + 3) / 4 * 3; | ||
| string result(result_len, false); | ||
| int i = 0; | ||
| string::size_type j = 0; | ||
| int padding = 0; | ||
| for (string::size_type pos = 0; pos < s.size(); pos++) { | ||
| int ch = static_cast<unsigned char>(s[pos]); | ||
| if (ch == '=') { | ||
| padding++; | ||
| continue; | ||
| } | ||
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| ch = base64_reverse_table[ch]; | ||
| if (!strict) { | ||
| /* skip unknown characters and whitespace */ | ||
| if (ch < 0) { | ||
| continue; | ||
| } | ||
| } else { | ||
| /* skip whitespace */ | ||
| if (ch == -1) { | ||
| continue; | ||
| } | ||
| /* fail on bad characters or if any data follows padding */ | ||
| if (ch == -2 || padding) { | ||
| return false; | ||
| } | ||
| } | ||
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| switch (i % 4) { | ||
| case 0: | ||
| result[j] = static_cast<unsigned char>(ch << 2); | ||
| break; | ||
| case 1: | ||
| result[j] = static_cast<char>(result[j] | (ch >> 4)); | ||
| result[++j] = static_cast<unsigned char>((ch & 0x0f) << 4); | ||
| break; | ||
| case 2: | ||
| result[j] = static_cast<char>(result[j] | (ch >> 2)); | ||
| result[++j] = static_cast<unsigned char>((ch & 0x03) << 6); | ||
| break; | ||
| case 3: | ||
| result[j] = static_cast<char>(result[j] | ch); | ||
| ++j; | ||
| break; | ||
| } | ||
| i++; | ||
| } | ||
| /* fail if the input is truncated (only one char in last group) */ | ||
| if (strict && i % 4 == 1) { | ||
| return false; | ||
| } | ||
| /* fail if the padding length is wrong (not VV==, VVV=), but accept zero padding | ||
| * RFC 4648: "In some circumstances, the use of padding [--] is not required" */ | ||
| if (strict && padding && (padding > 2 || (i + padding) % 4 != 0)) { | ||
| return false; | ||
| } | ||
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| result.shrink(j); | ||
|
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| return result; | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| // Compiler for PHP (aka KPHP) | ||
| // Copyright (c) 2024 LLC «V Kontakte» | ||
| // Distributed under the GPL v3 License, see LICENSE.notice.txt | ||
|
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| #pragma once | ||
|
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| #include "runtime-core/runtime-core.h" | ||
|
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| string f$base64_encode(const string &s); | ||
| Optional<string> f$base64_decode(const string &s, bool strict); |
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