Add platform airdrop functionality to SuperMinterV1_1 #298

Vectorized · 2023-12-05T20:34:14Z

SuperMinterV1_1:
- New "PLATFORM_AIRDROP" mode to
- Removed artist-customizable signer. We don't need that flexibility. Simpler code.

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contracts/modules/SuperMinterV1_1.sol

…atformAirdrop

mattg-a16z

I did this in a slightly different way this time. I went through all the key changes to make sure I noted having reviewed the change or asked for verification that my understanding is correct. Overall, it seems like the main changes are:

Removing the mint-specific signers in favor of platform signers
Addition of another mint type
A new minting function (airdrop) to support the new mint type that verifies a platform signature before airdropping to n many addresses
Changes to the editions to allow the minter to call the airdrop function directly
Changes to configuration functions to keep people from setting price or max mintable for an airdrop mint

If this matches your expectations, then we're probably good. I'll do another once-over tomorrow morning to make sure I'm not missing some strange edge case, but in the mean time, here is the review.

mattg-a16z · 2023-12-07T02:10:04Z

contracts/core/SoundEditionV2_1.sol

@@ -232,7 +232,7 @@ contract SoundEditionV2_1 is ISoundEditionV2_1, ERC721AQueryableUpgradeable, ERC
        uint8 tier,
        address[] calldata to,
        uint256 quantity
-    ) external payable onlyRolesOrOwner(ADMIN_ROLE) returns (uint256 fromTokenId) {
+    ) external payable onlyRolesOrOwner(ADMIN_ROLE | MINTER_ROLE) returns (uint256 fromTokenId) {


Checked this in context. The change is to allow airdrop to be called by the minter to facilitate the minter's new airdrop functionality. This checks out no response needed

mattg-a16z · 2023-12-07T02:13:56Z

contracts/modules/SuperMinterV1_1.sol


        // Perform the sub workflows depending on the mint mode.
        uint8 mode = d.mode;
        if (mode == VERIFY_MERKLE) _verifyMerkle(d, p);
        else if (mode == VERIFY_SIGNATURE) _verifyAndClaimSignature(d, p);
+        else if (mode == PLATFORM_AIRDROP) revert InvalidMode();


This is important, the main risk creating a new state involves running older functions in unexpected states. This keeps mintTo from being called for platform airdrops. This comment is to note down where the expected mitigations are, no response needed.

mattg-a16z · 2023-12-07T02:16:41Z

contracts/modules/SuperMinterV1_1.sol

+    function computePlatformAirdropDigest(PlatformAirdrop calldata p) public view returns (bytes32) {
+        // prettier-ignore
+        return
+            _hashTypedData(keccak256(abi.encode(


EIP712 digest, addresses most signature gotchas. Good to see.

mattg-a16z · 2023-12-07T02:26:04Z

contracts/modules/SuperMinterV1_1.sol

+            revert InvalidSignature();
+        if (block.timestamp > p.signedDeadline) revert SignatureExpired();
+        uint256 mintId = LibOps.packId(p.edition, p.tier, p.scheduleNum);
+        if (!_claimsBitmaps[mintId].toggle(p.signedClaimTicket)) revert SignatureAlreadyUsed();


So we have the EIP712 signature verification that uses the entire PlatformAirdrop object (except the signature). Then we verify the expiry, then check if it has been used before. Checked toggle to make sure that when the bit is unset it returns true, and that seems to be the case. Reversion should keep toggle from turning the bit off. Should work as intended.

mattg-a16z · 2023-12-07T02:31:23Z

contracts/modules/SuperMinterV1_1.sol

@@ -285,16 +307,13 @@ contract SuperMinterV1_1 is ISuperMinterV1_1, EIP712 {
            d.maxMintable = c.maxMintable;
            d.affiliateFeeBPS = c.affiliateFeeBPS;
            d.mode = c.mode;
-            d.flags = _MINT_CREATED_FLAG | LibOps.toFlag(usePlatformSigner, _USE_PLATFORM_SIGNER_FLAG);
+            d.flags = _MINT_CREATED_FLAG;


Sounds like everything is going to use the platform signer. Is that correct?

that's correct

mattg-a16z · 2023-12-07T02:32:14Z

contracts/modules/SuperMinterV1_1.sol

+        _requireMintOpen(d);
+
+        if (d.mode != PLATFORM_AIRDROP) revert InvalidMode();
+        _verifyAndClaimPlatfromAidropSignature(d, p);


Signature check, expiry check, and replay check are all in this method.

mattg-a16z · 2023-12-07T02:32:35Z

contracts/modules/SuperMinterV1_1.sol

+        if (d.mode != PLATFORM_AIRDROP) revert InvalidMode();
+        _verifyAndClaimPlatfromAidropSignature(d, p);
+
+        _incrementPlatformAirdropMinted(d, p);


quantity check is inside this method

mattg-a16z · 2023-12-07T02:36:52Z

contracts/modules/SuperMinterV1_1.sol

+        /* ------------------------- MINT --------------------------- */
+
+        ISoundEditionV2_1 edition = ISoundEditionV2_1(p.edition);
+        fromTokenId = edition.airdrop(p.tier, p.to, p.signedQuantity);


Can only be reached if:

the mint is a platform airdrop

there is a valid platform signature by the platform specified during mint creation (createEditionMint sets the platform that is used to find the signer.

the signature hasn't expired

the claim ticket number hasn't been used yet

the minting doesn't go over the max mintable

As long as this matches the intended restrictions, then this should be good to go.

mattg-a16z · 2023-12-07T02:40:07Z

contracts/modules/SuperMinterV1_1.sol

-    /**
-     * @inheritdoc ISuperMinterV1_1
-     */
-    function setSigner(


This seems to be a change where the only signer used going forward is going to be the platform signer for the platform declared as part of the mint creation. This means no more declaring a specific signer, instead for VERIFY_SIGNATURE mint you'll declare a platform and the platform will will use their enrolled signer. Is this correct? The change on line 1119 seems to support this being the case.

vigneshka · 2023-12-07T03:57:29Z

I did this in a slightly different way this time. I went through all the key changes to make sure I noted having reviewed the change or asked for verification that my understanding is correct. Overall, it seems like the main changes are:

Removing the mint-specific signers in favor of platform signers

Addition of another mint type

A new minting function (airdrop) to support the new mint type that verifies a platform signature before airdropping to n many addresses

Changes to the editions to allow the minter to call the airdrop function directly

Changes to configuration functions to keep people from setting price or max mintable for an airdrop mint

If this matches your expectations, then we're probably good. I'll do another once-over tomorrow morning to make sure I'm not missing some strange edge case, but in the mean time, here is the review.

Perfect summary, thank you Matt!

* Prep files * Reinstall multicaller * forge install: multicaller v1.3.1 * Add LibMulticaller.senderOrSigner support * Tidy * freeMintIncentive -> cheapMintIncentive * Add comment on the two types of affiliate fees * Remove first collector incentives * Add more comments and use checked math in mintTo * Add finalAffiliateIncentive to Minted log. Change finalCheapMintFee -> finalCheapMintIncentive * Add platform airdrop functionality to SuperMinterV1_1 (#298) * Add presave functionality to SuperMinterV1_1 * Rename PRESAVE -> PLATFORM_AIRDROP * Force PLATFORM_AIRDROP to only use platform signer * Remove artist-customizable signer, everyone must use platform signer * Make mintTo and platformAirdrop return fromTokenId, use airdrop in platformAirdrop * Remove signer from MintData * Update create2 deployment script * Create modern-shirts-try.md * pin version for typechain * tweak ci * more ci tweaks * add back foundry * bump * bump typechain * Implement fee changes (#299) * Implement fee changes * T * Fix prices and add tests * Add tests * Simplified fees and rewards (#300) * nit suggestion * changes * Fix code and fuzz test * Tidy * Nit comment --------- Co-authored-by: Vignesh Hirudayakanth <vigneshkanth@gmail.com> --------- Co-authored-by: Vignesh Hirudayakanth <vigneshkanth@gmail.com> * Update modern-shirts-try.md --------- Co-authored-by: Vignesh Hirudayakanth <vigneshkanth@gmail.com>

* Clone files and bump versions * SuperMinterV1_1 et al. (#296) * Prep files * Reinstall multicaller * forge install: multicaller v1.3.1 * Add LibMulticaller.senderOrSigner support * Tidy * freeMintIncentive -> cheapMintIncentive * Add comment on the two types of affiliate fees * Remove first collector incentives * Add more comments and use checked math in mintTo * Add finalAffiliateIncentive to Minted log. Change finalCheapMintFee -> finalCheapMintIncentive * Add platform airdrop functionality to SuperMinterV1_1 (#298) * Add presave functionality to SuperMinterV1_1 * Rename PRESAVE -> PLATFORM_AIRDROP * Force PLATFORM_AIRDROP to only use platform signer * Remove artist-customizable signer, everyone must use platform signer * Make mintTo and platformAirdrop return fromTokenId, use airdrop in platformAirdrop * Remove signer from MintData * Update create2 deployment script * Create modern-shirts-try.md * pin version for typechain * tweak ci * more ci tweaks * add back foundry * bump * bump typechain * Implement fee changes (#299) * Implement fee changes * T * Fix prices and add tests * Add tests * Simplified fees and rewards (#300) * nit suggestion * changes * Fix code and fuzz test * Tidy * Nit comment --------- Co-authored-by: Vignesh Hirudayakanth <vigneshkanth@gmail.com> --------- Co-authored-by: Vignesh Hirudayakanth <vigneshkanth@gmail.com> * Update modern-shirts-try.md --------- Co-authored-by: Vignesh Hirudayakanth <vigneshkanth@gmail.com> * Update .github/workflows/canary.yml --------- Co-authored-by: Vectorized <webby1111@hotmail.com>

Add presave functionality to SuperMinterV1_1

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vigneshka reviewed Dec 6, 2023

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contracts/modules/SuperMinterV1_1.sol Show resolved Hide resolved

vigneshka reviewed Dec 6, 2023

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vigneshka reviewed Dec 6, 2023

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Vectorized added 3 commits December 6, 2023 21:12

Rename PRESAVE -> PLATFORM_AIRDROP

f09b3dd

Force PLATFORM_AIRDROP to only use platform signer

f10c723

Remove artist-customizable signer, everyone must use platform signer

ee342c1

vigneshka changed the title ~~Add presave functionality to SuperMinterV1_1~~ Add platform airdrop functionality to SuperMinterV1_1 Dec 6, 2023

Make mintTo and platformAirdrop return fromTokenId, use airdrop in pl…

679aee9

…atformAirdrop

mattg-a16z reviewed Dec 7, 2023

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Vectorized added 2 commits December 12, 2023 19:55

Remove signer from MintData

14708ef

Update create2 deployment script

802a7d7

Vectorized force-pushed the vectorized/presaver branch from 91993c2 to 802a7d7 Compare December 14, 2023 16:39

vigneshka merged commit 9d7530b into vectorized/affiliate-flat-fee Dec 15, 2023
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vigneshka deleted the vectorized/presaver branch December 15, 2023 17:04

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Add platform airdrop functionality to SuperMinterV1_1 #298

Add platform airdrop functionality to SuperMinterV1_1 #298

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Add platform airdrop functionality to SuperMinterV1_1 #298

Add platform airdrop functionality to SuperMinterV1_1 #298

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vigneshka commented Dec 7, 2023

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