33 lines
1.1 KiB
Solidity
33 lines
1.1 KiB
Solidity
// SPDX-License-Identifier: UNLICENSED
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pragma solidity ^0.8.23;
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library CIDStorage {
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function bytes32PairToString(bytes32 part1, bytes32 part2) public pure returns (string memory) {
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// Concatenate the two bytes32 variables
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bytes memory concatenatedBytes = abi.encodePacked(part1, part2);
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// Truncate the concatenated bytes to 59 bytes
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bytes memory truncatedBytes = new bytes(59);
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for (uint i = 0; i < 59; i++) {
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truncatedBytes[i] = concatenatedBytes[i];
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}
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// Convert the truncated bytes to a string
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string memory str = string(truncatedBytes);
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return str;
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}
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function stringToBytes32Pair(string memory source) public pure returns (bytes32 part1, bytes32 part2) {
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bytes memory sourceBytes = bytes(source);
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require(sourceBytes.length == 59, "URI string must equal to 59 bytes");
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assembly {
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// Load the first 32 bytes of the string data
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part1 := mload(add(sourceBytes, 32))
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// Load the second 32 bytes of the string data
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part2 := mload(add(sourceBytes, 64))
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}
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}
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}
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