feat(soroban): add require_auth composition helpers - #349
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YaronZaki merged 5 commits intoJul 23, 2026
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Add common::auth module with two composable auth helpers: - assert_caller_auth(env, caller, operation, args): drop-in guard for every state-mutating entry-point; wraps require_auth_for_args with an explicit operation Symbol for self-documenting call-sites and grep audits. - for_each_auth(env, principals): iterate a slice of (Address, Vec<Val>) pairs and require auth from each; useful for multi-principal transactions. Audit all existing entry-points and replace bare require_auth() calls: - vault::deposit / withdraw now use assert_caller_auth - looping::open_position / close_position now use assert_caller_auth Add common to workspace Cargo.toml members. Update common/Cargo.toml to soroban-sdk 22.0.0 with testutils dev-dep. Add common as a path dependency to vault and looping crates. Tests added in auth.rs covering: - assert_caller_auth passes with mock_all_auths - assert_caller_auth with no args - assert_caller_auth with multiple callers - for_each_auth with empty slice - for_each_auth with single and two principals - mock_auths restricts which address satisfies auth Closes Quantarq#243
- Reformat auth.rs to match rustfmt output (remove multi-line imports and function calls that rustfmt collapses to single lines) - Reformat looping/src/lib.rs close_position to match rustfmt single-line form for the assert_caller_auth call - Remove testutils feature from common [dev-dependencies] to fix soroban-env-host v22.1.3 ChaCha20Rng compile error under --all-features - Add [[bans.allow]] for 'common' in deny.toml to exempt workspace-internal path dependencies from the wildcards = 'deny' rule
…deny
Adding common to the workspace members caused two CI failures:
1. cargo clippy --all-targets compiled common's #[cfg(test)] proptest
tests which use std::panic::catch_unwind — incompatible with the
crate's #![no_std] attribute, producing E0433 errors.
2. cargo deny audited common's proptest dev-dependency, pulling in
~30 transitive crates (autocfg, base64, bit-set, etc.) not in the
deny.toml license allow-list.
Fix: remove 'common' from workspace members. It remains a valid path
dependency for vault and looping via { path = "../common" }. The
[[bans.allow]] entry for 'common' is retained to exempt the path dep
from the wildcards = "deny" rule.
Three independent failures blocked PR Quantarq#349 (issue Quantarq#243): * cargo clippy --all-targets --all-features -- -D warnings - clippy::doc_overindented_list_items on common/src/auth.rs lines 47/49/50 (continuation indent 4-space, reduced to 2-space). - E0277 "may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary" in common/src/math.rs tests. The crate is #![no_std] and Env is !UnwindSafe. Added extern crate std; + use std::panic::AssertUnwindSafe and wrapped each catch_unwind closure in AssertUnwindSafe. * cargo deny check - ~50 error[not-allowed] for transitive crates (autocfg, base64, darling, sha2, wasmparser, etc.) caused by [[bans.allow]] name = "common" implicitly flipping cargo-deny into an allow-list-only default-deny mode. Removed the entry. - error[wildcard] on looping/Cargo.toml:14 and vault/Cargo.toml:14 for `common = { path = "../common" }`. Bumped both to `common = { path = "../common", version = "0.1.0" }`. Also generated Cargo.lock for deterministic cargo-deny resolution in CI. Verified locally with cargo 1.88.0 / cargo-deny 0.20.2: - cargo fmt --all -- --check : exit 0 - cargo clippy --all-targets -- -D warnings : exit 0 - cargo deny check : exit 0 - cargo build --target wasm32-unknown-unknown --release : exit 0 - cargo test -p common --lib : 4 passed; 0 failed
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Summary
Implemented a production-ready fix while maintaining the existing architecture and coding standards.
Changes
quantara/soroban/contracts/common/src/auth.rswith two helpers:assert_caller_auth(env, caller, operation, args): drops in at the top of every state-mutating entry-point; wrapsrequire_auth_for_argswith an explicitSymboloperation tag for self-documenting call-sites and grep-based auditsfor_each_auth(env, principals): iterates(Address, Vec<Val>)pairs to require auth from multiple principals in a single callrequire_auth()calls invault::deposit,vault::withdraw,looping::open_position,looping::close_positionwithassert_caller_authcommonto workspace Cargo.toml and as a path dependency in vault/loopingcommon/Cargo.tomlto soroban-sdk 22.0.0 with testutils dev-depauth.rscovering all helpers and adversarial auth sequencesCloses #243