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Add create/revoke URL object methods
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,100 @@ | ||
| #include "uuid.h" | ||
| #include "host_api.h" | ||
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| #include <fmt/core.h> | ||
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| namespace builtins { | ||
| namespace web { | ||
| namespace crypto { | ||
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| // FROM RFC 4122 | ||
| // The formal definition of the UUID string representation is | ||
| // provided by the following ABNF [7]: | ||
| // | ||
| // UUID = time-low "-" time-mid "-" | ||
| // time-high-and-version "-" | ||
| // clock-seq-and-reserved | ||
| // clock-seq-low "-" node | ||
| // time-low = 4hexOctet | ||
| // time-mid = 2hexOctet | ||
| // time-high-and-version = 2hexOctet | ||
| // clock-seq-and-reserved = hexOctet | ||
| // clock-seq-low = hexOctet | ||
| // node = 6hexOctet | ||
| // hexOctet = hexDigit hexDigit | ||
| // hexDigit = | ||
| // "0" / "1" / "2" / "3" / "4" / "5" / "6" / "7" / "8" / "9" / | ||
| // "a" / "b" / "c" / "d" / "e" / "f" / | ||
| // "A" / "B" / "C" / "D" / "E" / "F" | ||
| struct UUID { | ||
| uint32_t time_low; | ||
| uint16_t time_mid; | ||
| uint16_t time_high_and_version; | ||
| uint8_t clock_seq_and_reserved; | ||
| uint8_t clock_seq_low; | ||
| uint8_t node[6]; | ||
| }; | ||
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| // FROM RFC 4122 | ||
| // 4.1.3. Version | ||
| // | ||
| // The version number is in the most significant 4 bits of the time | ||
| // stamp (bits 4 through 7 of the time_hi_and_version field). | ||
| // | ||
| // The following table lists the currently-defined versions for this | ||
| // UUID variant. | ||
| // | ||
| // Msb0 Msb1 Msb2 Msb3 Version Description | ||
| // | ||
| // 0 0 0 1 1 The time-based version | ||
| // specified in this document. | ||
| // | ||
| // 0 0 1 0 2 DCE Security version, with | ||
| // embedded POSIX UIDs. | ||
| // | ||
| // 0 0 1 1 3 The name-based version | ||
| // specified in this document | ||
| // that uses MD5 hashing. | ||
| // | ||
| // 0 1 0 0 4 The randomly or pseudo- | ||
| // randomly generated version | ||
| // specified in this document. | ||
| // | ||
| // 0 1 0 1 5 The name-based version | ||
| // specified in this document | ||
| // that uses SHA-1 hashing. | ||
| std::optional<std::string> random_uuid_v4(JSContext *cx) { | ||
| UUID id; | ||
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| { | ||
| auto res = host_api::Random::get_bytes(sizeof(id)); | ||
| if (auto *err = res.to_err()) { | ||
| HANDLE_ERROR(cx, *err); | ||
| return std::nullopt; | ||
| } | ||
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| auto bytes = std::move(res.unwrap()); | ||
| std::copy_n(bytes.begin(), sizeof(id), reinterpret_cast<uint8_t *>(&id)); | ||
| } | ||
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| // Set the two most significant bits (bits 6 and 7) of the clock_seq_hi_and_reserved to zero and | ||
| // one, respectively. | ||
| id.clock_seq_and_reserved &= 0x3f; | ||
| id.clock_seq_and_reserved |= 0x80; | ||
| // Set the four most significant bits (bits 12 through 15) of the time_hi_and_version field to the | ||
| // 4-bit version number from Section 4.1.3. | ||
| id.time_high_and_version &= 0x0fff; | ||
| id.time_high_and_version |= 0x4000; | ||
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| return fmt::format("{:08x}-{:04x}-{:04x}-{:02x}{:02x}-{:02x}{:02x}{:02x}{:02x}{:02x}{:02x}", | ||
| id.time_low, | ||
| id.time_mid, | ||
| id.time_high_and_version, | ||
| id.clock_seq_and_reserved, id.clock_seq_low, | ||
| id.node[0], id.node[1], id.node[2], | ||
| id.node[3], id.node[4], id.node[5]); | ||
| } | ||
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| } // namespace uuid | ||
| } // namespace web | ||
| } // namespace builtins |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,29 @@ | ||
| #ifndef BUILTINS_WEB_CRYPTO_UUID_H | ||
| #define BUILTINS_WEB_CRYPTO_UUID_H | ||
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| #include "builtin.h" | ||
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| namespace builtins { | ||
| namespace web { | ||
| namespace crypto { | ||
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| // FROM RFC 4122 | ||
| // The version 4 UUID is meant for generating UUIDs from truly-random or | ||
| // pseudo-random numbers. | ||
| // | ||
| // The algorithm is as follows: | ||
| // | ||
| // Set the two most significant bits (bits 6 and 7) of the clock_seq_hi_and_reserved to zero and one, | ||
| // respectively. | ||
| // | ||
| // Set the four most significant bits (bits 12 through 15) of the time_hi_and_version field to the | ||
| // 4-bit version number from Section 4.1.3. | ||
| // | ||
| // Set all the other bits to randomly (or pseudo-randomly) chosen values. | ||
| std::optional<std::string> random_uuid_v4(JSContext *cx); | ||
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| } // namespace crypto | ||
| } // namespace web | ||
| } // namespace builtins | ||
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| #endif // BUILTINS_WEB_CRYPTO_UUID_H |
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