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fix(walletconnect): sign in to dApps with hardware wallets - #12737
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WalletConnect sign-in (SIWE) from dApps such as Venice failed on every non-native wallet. - hex encode utf8 messages in EvmBaseAdapter.signMessage, hdwallets other than native reject non-hex messages - pass hex: true to TrezorConnect so the message bytes are signed rather than the hex text, and throw when no signature is returned - skip session_authenticate for KeepKey and Trezor, their 1024 byte message cap is below the SIWE + ReCaps message size, so the dApp's fallback session proposal is used instead - include chains in approved session namespaces, AppKit falls back to mainnet without it - respond to unsupported session requests instead of dropping them, the sign client holds back later requests until each is answered - reject the session auth request when approval fails - stringify non-Error objects in ChainAdapterError Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Included review availability: This review used your included allowance. Your plan provides up to 2 included reviews per hour; 1 remain after this review. 📝 WalkthroughWalkthroughThe changes update error formatting and EVM and Trezor message signing. They also update WalletConnect namespace construction, session-authentication issuer formatting, wallet support checks, and approval failure handling. ChangesError serialization
Message signing
WalletConnect dapp handling
Priority: ➖ Normal Estimated code review effort: 3 (Moderate) | ~20 minutes Change: Bug fix · Severity of issue fixed: Medium Suggested reviewers: Merge Risk: ⚪ Minimal · up to The change adjusts WalletConnect sign-in for hardware wallets and message signing. No merge-blocking risk is evident from the supplied review context, though newer Trezor models and other dApps were not tested. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
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Actionable comments posted: 3
- 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
Review comments at @packages/chain-adapters/src/error/ErrorHandler.ts:
- Line 28: Update the ChainAdapterError constructor to guard
JSON.stringify(error) with try/catch and fall back to String(error) when
serialization throws or returns undefined; use the resulting message in the
super call.
Review comments at
@src/plugins/walletConnectToDapps/WalletConnectModalManager.tsx:
- Around line 226-235: Update the error handling in the session-authentication
catch block so a failure from rejectSessionAuthenticate does not prevent
handleClose() from running. Guard the rejection call with its own try/catch or
ensure the close call runs in a finally block.
- Line 232: Update the caught-error message passed to rejectSessionAuthenticate:
check that the caught value is an Error with a non-empty message, and use the
existing fallback otherwise. Remove the unchecked type assertion so handling
null or non-Error values cannot prevent the rejection.
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packages/chain-adapters/src/error/ErrorHandler.test.tspackages/chain-adapters/src/error/ErrorHandler.tspackages/chain-adapters/src/evm/EvmBaseAdapter.tspackages/chain-adapters/src/evm/ethereum/EthereumChainAdapter.test.tspackages/hdwallet-trezor/src/ethereum.tssrc/plugins/walletConnectToDapps/WalletConnectModalManager.tsxsrc/plugins/walletConnectToDapps/eventsManager/useWalletConnectEventsManager.tssrc/plugins/walletConnectToDapps/utils/createApprovalNamespaces.test.tssrc/plugins/walletConnectToDapps/utils/createApprovalNamespaces.ts
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…r paths - build the session_authenticate iss with an EIP-55 checksummed address, as EIP-4361 requires - update the mocked Trezor ethereumSignMessage call for hex: true so the hdwallet integration test matches the request - fall back to String when a thrown object can't be serialized in ChainAdapterError - close the session auth modal even when rejecting the request fails, and read the error message without an unchecked cast Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
They only exercised JSON.stringify and viem's getAddress. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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Description
WalletConnect sign-in (SIWE) from dApps such as venice.ai failed on every non-native wallet. Connecting ShapeShift to Venice threw
data is not an hex string, and once that was fixed KeepKey and Trezor One still could not sign in.Message signing
EvmBaseAdapter.signMessagenow hex encodes utf8 messages. Every hdwallet other than native rejects a non-hex message, and the WalletConnectsession_authenticate(one-click auth) handler passed the SIWE message as plain text.hdwallet-trezorpasseshex: trueto TrezorConnect so the message bytes are signed rather than the hex text. It also throws when no signature comes back, instead of returning0xundefined.iss) is built with an EIP-55 checksummed address, as EIP-4361 requires. It was lowercase before.KeepKey and Trezor
EthereumSignMessage.messageat 1024 bytes. The one-click auth message embeds the session permissions (ReCaps) and was 2055 bytes for Venice, so these devices cannot sign it.session_authenticatelistener. The sign client then handles the dApp's fallback session proposal, and the dApp follows up with a regularpersonal_signsign-in message that fits.Session approval
chains. AppKit's WalletConnect connector readssession.namespaces.eip155.chainsand falls back to mainnet without it, which left Base-only Venice on "This app doesn't support your current network".Hardening
ChainAdapterErrorstringifies non-Error objects, so a thrown device failure event reads as its contents instead of[object Object].Issue (if applicable)
closes #12729
Fixes SS-5788
Risk
Medium. No transaction building or broadcasting changes, but this touches message signing for all EVM wallets and the WalletConnect dApp session approval for every dApp.
personal_sign/eth_sign/ SIWE) for all wallets viaEvmBaseAdapter.signMessage. Hex messages pass through unchanged.chains), session authenticate (skipped for KeepKey and Trezor), and requests for unsupported methods.Testing
Engineering
Tested manually against venice.ai (token page, connect with WalletConnect, paste the URI into ShapeShift):
personal_signsign-in message.Not tested: newer Trezor models, other dApps, other wallets (MetaMask, Phantom, WalletConnect, GridPlus etc.).
Unit tests added for the hex encoding in
signMessage, thechainslist increateApprovalNamespaces, the checksummediss, andChainAdapterErrorwith non-Error objects. The mocked TrezorethereumSignMessagecall inhdwallet-integrationis updated forhex: true. Lint and type-check were not run locally.Operations
Screenshots (if applicable)
N/A
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Summary by CodeRabbit
Bug Fixes
Improvements