feat(near): accumulators

target_chains/near/example/Cargo.lock

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+ "bs58",
+ "chrono",
+ "dirs 3.0.2",
+ "hex 0.4.3",
+ "libc",
+ "near-account-id 0.15.0",
+ "near-crypto 0.15.0",
+ "near-jsonrpc-client",
+ "near-jsonrpc-primitives",
+ "near-primitives 0.15.0",
+ "near-sandbox-utils",
+ "portpicker",
+ "rand 0.8.5",
+ "reqwest",
+ "serde",
+ "serde_json",
+ "thiserror",
+ "tokio",
+ "tokio-retry",
+ "tracing",
+ "url",
+]
+
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+ "synstructure",
+]
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+dependencies = [
+ "borsh",
+ "byteorder",
+ "crunchy",
+ "lazy_static",
+ "rand 0.8.5",
+ "rustc-hex",
+]
+
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+name = "zip"
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+dependencies = [
+ "byteorder",
+ "bzip2",
+ "crc32fast",
+ "flate2",
+ "thiserror",
+ "time",
+]

target_chains/near/example/Cargo.toml

@@ -0,0 +1,40 @@
+[package]
+name                       = "pyth-near-example"
+version                    = "0.1.0"
+authors                    = ["Pyth Data Association"]
+edition                    = "2021"
+description                = "A Pyth Receiver for Near"
+
+[lib]
+name                       = "pyth_example"
+crate-type                 = ["cdylib", "lib"]
+
+[dependencies]
+byteorder                  = { version = "1.4.3" }
+hex                        = { version = "0.4.3" }
+near-sdk                   = { version = "4.1.1" }
+num-traits                 = { version = "0.2.15" }
+num-derive                 = { version = "0.3.3" }
+pythnet-sdk                = { path = "../../../pythnet/pythnet_sdk" }
+pyth-near                  = { path = "../receiver", features = ["library"] }
+strum                      = { version = "0.24.1", features = ["derive"] }
+thiserror                  = { version = "1.0.38" }
+wormhole-core              = { git = "https://github.com/wormhole-foundation/wormhole", rev = "4ddeca4dbdba50e2cbf6e603242f8c75d9246e2a" }
+
+[patch.crates-io]
+serde_wormhole             = { git = "https://github.com/wormhole-foundation/wormhole", rev = "4ddeca4dbdba50e2cbf6e603242f8c75d9246e2a" }
+
+[dev-dependencies]
+lazy_static                = { version = "1.4.0" }
+serde_json                 = { version = "1.0.91" }
+serde                      = { version = "1.0.152", features = ["derive"] }
+tokio                      = { version = "1.23.0", features = ["full"] }
+workspaces                 = { version = "0.7.0" }
+
+[profile.release]
+codegen-units              = 1
+opt-level                  = 3
+lto                        = "fat"
+debug                      = false
+panic                      = "abort"
+overflow-checks            = true

target_chains/near/example/rust-toolchain

@@ -0,0 +1 @@
+1.69.0-x86_64-unknown-linux-gnu

target_chains/near/example/src/lib.rs

@@ -0,0 +1,65 @@
+use {
+    near_sdk::{
+        borsh::{
+            self,
+            BorshDeserialize,
+            BorshSerialize,
+        },
+        env,
+        is_promise_success,
+        near_bindgen,
+        AccountId,
+        Gas,
+        PanicOnDefault,
+        Promise,
+        PromiseError,
+    },
+    pyth::state::PriceIdentifier,
+};
+
+#[near_bindgen]
+#[derive(BorshDeserialize, BorshSerialize, PanicOnDefault)]
+pub struct PythExample {
+    pyth: AccountId,
+}
+
+#[near_bindgen]
+impl PythExample {
+    #[init]
+    #[allow(clippy::new_without_default)]
+    pub fn new(pyth: AccountId) -> Self {
+        Self { pyth }
+    }
+
+    /// Get a Pyth Price Feed Result.
+    #[payable]
+    pub fn example_price_usage(&mut self, identifier: PriceIdentifier, data: String) -> Promise {
+        pyth::ext::ext_pyth::ext(self.pyth.clone())
+            .with_static_gas(Gas(30_000_000_000_000))
+            .with_attached_deposit(env::attached_deposit())
+            .update_price_feeds(data)
+            .then(
+                pyth::ext::ext_pyth::ext(self.pyth.clone())
+                    .get_price(identifier)
+                    .then(
+                        Self::ext(env::current_account_id())
+                            .with_static_gas(Gas(10_000_000_000))
+                            .handle_example_price_usage(),
+                    ),
+            )
+    }
+
+    #[payable]
+    #[private]
+    #[handle_result]
+    pub fn handle_example_price_usage(
+        &mut self,
+        #[callback_result] _r: Result<Option<pyth::state::Price>, PromiseError>,
+    ) {
+        if !is_promise_success() {
+            return;
+        }
+
+        // Do things with Price Feed Result.
+    }
+}

target_chains/near/receiver/Cargo.lock

@@ -140,7 +140,7 @@ checksum = "677d1d8ab452a3936018a687b20e6f7cf5363d713b732b8884001317b0e48aa3"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -199,6 +199,15 @@ dependencies = [
  "zip",
 ]
 
+[[package]]
+name = "bincode"
+version = "1.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b1f45e9417d87227c7a56d22e471c6206462cba514c7590c09aff4cf6d1ddcad"
+dependencies = [
+ "serde",
+]
+
 [[package]]
 name = "bitflags"
 version = "1.3.2"
@@ -291,7 +300,7 @@ dependencies = [
  "borsh-schema-derive-internal",
  "proc-macro-crate 0.1.5",
  "proc-macro2",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -302,7 +311,7 @@ checksum = "5449c28a7b352f2d1e592a8a28bf139bc71afb0764a14f3c02500935d8c44065"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -313,7 +322,7 @@ checksum = "cdbd5696d8bfa21d53d9fe39a714a18538bad11492a42d066dbbc395fb1951c0"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -346,6 +355,26 @@ version = "1.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c3ac9f8b63eca6fd385229b3675f6cc0dc5c8a5c8a54a59d4f52ffd670d87b0c"
 
+[[package]]
+name = "bytemuck"
+version = "1.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "374d28ec25809ee0e23827c2ab573d729e293f281dfe393500e7ad618baa61c6"
+dependencies = [
+ "bytemuck_derive",
+]
+
+[[package]]
+name = "bytemuck_derive"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "965ab7eb5f8f97d2a083c799f3a1b994fc397b2fe2da5d1da1626ce15a39f2b1"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.38",
+]
+
 [[package]]
 name = "byteorder"
 version = "1.4.3"
@@ -605,7 +634,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "scratch",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -622,7 +651,7 @@ checksum = "3e7e2adeb6a0d4a282e581096b06e1791532b7d576dcde5ccd9382acf55db8e6"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -635,7 +664,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "rustc_version",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -756,10 +785,19 @@ checksum = "aa4da3c766cd7a0db8242e326e9e4e081edd567072893ed320008189715366a4"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
  "synstructure",
 ]
 
+[[package]]
+name = "fast-math"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2465292146cdfc2011350fe3b1c616ac83cf0faeedb33463ba1c332ed8948d66"
+dependencies = [
+ "ieee754",
+]
+
 [[package]]
 name = "fastrand"
 version = "1.8.0"
@@ -1125,6 +1163,12 @@ dependencies = [
  "unicode-normalization",
 ]
 
+[[package]]
+name = "ieee754"
+version = "0.2.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9007da9cacbd3e6343da136e98b0d2df013f553d35bdec8b518f07bea768e19c"
+
 [[package]]
 name = "impl-codec"
 version = "0.5.1"
@@ -1142,7 +1186,7 @@ checksum = "11d7a9f6330b71fea57921c9b61c47ee6e84f72d394754eff6163ae67e7395eb"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -1364,7 +1408,7 @@ dependencies = [
  "derive_more",
  "near-crypto 0.15.0",
  "near-primitives 0.15.0",
- "num-rational",
+ "num-rational 0.3.2",
  "serde",
  "serde_json",
  "sha2 0.10.6",
@@ -1475,7 +1519,7 @@ dependencies = [
  "near-primitives-core 0.14.0",
  "near-rpc-error-macro 0.14.0",
  "near-vm-errors 0.14.0",
- "num-rational",
+ "num-rational 0.3.2",
  "once_cell",
  "primitive-types",
  "rand 0.7.3",
@@ -1505,7 +1549,7 @@ dependencies = [
  "near-primitives-core 0.15.0",
  "near-rpc-error-macro 0.15.0",
  "near-vm-errors 0.15.0",
- "num-rational",
+ "num-rational 0.3.2",
  "once_cell",
  "primitive-types",
  "rand 0.7.3",
@@ -1528,7 +1572,7 @@ dependencies = [
  "bs58",
  "derive_more",
  "near-account-id 0.14.0",
- "num-rational",
+ "num-rational 0.3.2",
  "serde",
  "sha2 0.10.6",
  "strum",
@@ -1545,7 +1589,7 @@ dependencies = [
  "bs58",
  "derive_more",
  "near-account-id 0.15.0",
- "num-rational",
+ "num-rational 0.3.2",
  "serde",
  "serde_repr",
  "sha2 0.10.6",
@@ -1560,7 +1604,7 @@ checksum = "93ee0b41c75ef859c193a8ff1dadfa0c8207bc0ac447cc22259721ad769a1408"
 dependencies = [
  "quote",
  "serde",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -1571,7 +1615,7 @@ checksum = "36addf90cc04bd547a627b3a292f59d7de4dd6fb5042115419ae901b93ce6c2d"
 dependencies = [
  "quote",
  "serde",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -1582,7 +1626,7 @@ checksum = "8e837bd4bacd807073ec5ceb85708da7f721b46a4c2a978de86027fb0034ce31"
 dependencies = [
  "near-rpc-error-core 0.14.0",
  "serde",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -1593,7 +1637,7 @@ checksum = "0b5beb352f3b91d8c491646c2fa4fdbbbf463c7b9c0226951c28f0197de44f99"
 dependencies = [
  "near-rpc-error-core 0.15.0",
  "serde",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -1643,7 +1687,7 @@ dependencies = [
  "Inflector",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -1709,6 +1753,20 @@ dependencies = [
  "minimal-lexical",
 ]
 
+[[package]]
+name = "num"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b05180d69e3da0e530ba2a1dae5110317e49e3b7f3d41be227dc5f92e49ee7af"
+dependencies = [
+ "num-bigint 0.4.3",
+ "num-complex",
+ "num-integer",
+ "num-iter",
+ "num-rational 0.4.1",
+ "num-traits",
+]
+
 [[package]]
 name = "num-bigint"
 version = "0.3.3"
@@ -1720,6 +1778,26 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "num-bigint"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f93ab6289c7b344a8a9f60f88d80aa20032336fe78da341afc91c8a2341fc75f"
+dependencies = [
+ "autocfg",
+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
+name = "num-complex"
+version = "0.4.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1ba157ca0885411de85d6ca030ba7e2a83a28636056c7c699b07c8b6f7383214"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "num-derive"
 version = "0.3.3"
@@ -1728,7 +1806,7 @@ checksum = "876a53fff98e03a936a674b29568b0e605f06b29372c2489ff4de23f1949743d"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -1741,6 +1819,17 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "num-iter"
+version = "0.1.43"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d03e6c028c5dc5cac6e2dec0efda81fc887605bb3d884578bb6d6bf7514e252"
+dependencies = [
+ "autocfg",
+ "num-integer",
+ "num-traits",
+]
+
 [[package]]
 name = "num-rational"
 version = "0.3.2"
@@ -1748,12 +1837,24 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "12ac428b1cb17fce6f731001d307d351ec70a6d202fc2e60f7d4c5e42d8f4f07"
 dependencies = [
  "autocfg",
- "num-bigint",
+ "num-bigint 0.3.3",
  "num-integer",
  "num-traits",
  "serde",
 ]
 
+[[package]]
+name = "num-rational"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0638a1c9d0a3c0914158145bc76cff373a75a627e6ecbfb71cbe6f453a5a19b0"
+dependencies = [
+ "autocfg",
+ "num-bigint 0.4.3",
+ "num-integer",
+ "num-traits",
+]
+
 [[package]]
 name = "num-traits"
 version = "0.2.15"
@@ -1817,7 +1918,7 @@ checksum = "b501e44f11665960c7e7fcf062c7d96a14ade4aa98116c004b2e37b5be7d736c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -1862,7 +1963,7 @@ dependencies = [
  "proc-macro-crate 1.2.1",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -1929,7 +2030,7 @@ checksum = "069bdb1e05adc7a8990dce9cc75370895fbe4e3d58b9b73bf1aee56359344a55"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -2012,9 +2113,9 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.49"
+version = "1.0.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "57a8eca9f9c4ffde41714334dee777596264c7825420f521abc92b5b5deb63a5"
+checksum = "134c189feb4956b20f6f547d2cf727d4c0fe06722b20a0eec87ed445a97f92da"
 dependencies = [
  "unicode-ident",
 ]
@@ -2032,9 +2133,10 @@ dependencies = [
  "num-traits",
  "pyth-sdk 0.7.0",
  "pyth-wormhole-attester-sdk",
+ "pythnet-sdk",
  "serde",
  "serde_json",
- "serde_wormhole",
+ "serde_wormhole 0.1.0 (git+https://github.com/wormhole-foundation/wormhole)",
  "strum",
  "thiserror",
  "tokio",
@@ -2070,18 +2172,35 @@ dependencies = [
 
 [[package]]
 name = "pyth-wormhole-attester-sdk"
-version = "0.1.1"
+version = "0.1.2"
 dependencies = [
  "hex 0.4.3",
  "pyth-sdk 0.5.0",
  "serde",
 ]
 
+[[package]]
+name = "pythnet-sdk"
+version = "2.0.0"
+dependencies = [
+ "bincode",
+ "borsh",
+ "bytemuck",
+ "byteorder",
+ "fast-math",
+ "hex 0.4.3",
+ "rustc_version",
+ "serde",
+ "sha3",
+ "slow_primes",
+ "thiserror",
+]
+
 [[package]]
 name = "quote"
-version = "1.0.23"
+version = "1.0.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8856d8364d252a14d474036ea1358d63c9e6965c8e5c1885c18f73d70bff9c7b"
+checksum = "5267fca4496028628a95160fc423a33e8b2e6af8a5302579e322e4b520293cae"
 dependencies = [
  "proc-macro2",
 ]
@@ -2346,7 +2465,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "serde_derive_internals",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -2426,7 +2545,7 @@ checksum = "af487d118eecd09402d70a5d72551860e788df87b464af30e5ea6a38c75c541e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -2437,7 +2556,7 @@ checksum = "85bf8229e7920a9f636479437026331ce11aa132b4dde37d121944a44d6e5f3c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -2459,7 +2578,7 @@ checksum = "9a5ec9fa74a20ebbe5d9ac23dac1fc96ba0ecfe9f50f2843b52e537b10fbcb4e"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -2474,6 +2593,16 @@ dependencies = [
  "serde",
 ]
 
+[[package]]
+name = "serde_wormhole"
+version = "0.1.0"
+source = "git+https://github.com/wormhole-foundation/wormhole?rev=4ddeca4dbdba50e2cbf6e603242f8c75d9246e2a#4ddeca4dbdba50e2cbf6e603242f8c75d9246e2a"
+dependencies = [
+ "itoa",
+ "serde",
+ "thiserror",
+]
+
 [[package]]
 name = "serde_wormhole"
 version = "0.1.0"
@@ -2558,6 +2687,15 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "slow_primes"
+version = "0.1.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "58267dd2fbaa6dceecba9e3e106d2d90a2b02497c0e8b01b8759beccf5113938"
+dependencies = [
+ "num",
+]
+
 [[package]]
 name = "smallvec"
 version = "1.10.0"
@@ -2572,7 +2710,7 @@ checksum = "133659a15339456eeeb07572eb02a91c91e9815e9cbc89566944d2c8d3efdbf6"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -2616,7 +2754,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "rustversion",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -2636,6 +2774,17 @@ dependencies = [
  "unicode-ident",
 ]
 
+[[package]]
+name = "syn"
+version = "2.0.38"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e96b79aaa137db8f61e26363a0c9b47d8b4ec75da28b7d1d614c2303e232408b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
 [[package]]
 name = "synstructure"
 version = "0.12.6"
@@ -2644,7 +2793,7 @@ checksum = "f36bdaa60a83aca3921b5259d5400cbf5e90fc51931376a9bd4a0eb79aa7210f"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
  "unicode-xid",
 ]
 
@@ -2690,22 +2839,22 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.38"
+version = "1.0.50"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a9cd18aa97d5c45c6603caea1da6628790b37f7a34b6ca89522331c5180fed0"
+checksum = "f9a7210f5c9a7156bb50aa36aed4c95afb51df0df00713949448cf9e97d382d2"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.38"
+version = "1.0.50"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1fb327af4685e4d03fa8cbcf1716380da910eeb2bb8be417e7f9fd3fb164f36f"
+checksum = "266b2e40bc00e5a6c09c3584011e08b06f123c00362c92b975ba9843aaaa14b8"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.38",
 ]
 
 [[package]]
@@ -2762,7 +2911,7 @@ checksum = "d266c00fde287f55d3f1c3e96c500c362a2b8c695076ec180f27918820bc6df8"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -2835,7 +2984,7 @@ checksum = "4017f8f45139870ca7e672686113917c71c7a6e02d4924eda67186083c03081a"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
 ]
 
 [[package]]
@@ -2992,7 +3141,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
  "wasm-bindgen-shared",
 ]
 
@@ -3026,7 +3175,7 @@ checksum = "07bc0c051dc5f23e307b13285f9d75df86bfdf816c5721e573dec1f9b8aa193c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -3250,7 +3399,7 @@ dependencies = [
  "bstr",
  "schemars",
  "serde",
- "serde_wormhole",
+ "serde_wormhole 0.1.0 (git+https://github.com/wormhole-foundation/wormhole?rev=4ddeca4dbdba50e2cbf6e603242f8c75d9246e2a)",
  "sha3",
  "thiserror",
 ]
@@ -3287,7 +3436,7 @@ checksum = "44bf07cb3e50ea2003396695d58bf46bc9887a1f362260446fad6bc4e79bd36c"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.107",
  "synstructure",
 ]
 

target_chains/near/receiver/Cargo.toml

@@ -9,6 +9,9 @@ description                = "A Pyth Receiver for Near"
 name                       = "pyth"
 crate-type                 = ["cdylib", "lib"]
 
+[features]
+library = []
+
 [dependencies]
 byteorder                  = { version = "1.4.3" }
 hex                        = { version = "0.4.3" }
@@ -18,13 +21,14 @@ num-traits                 = { version = "0.2.15" }
 num-derive                 = { version = "0.3.3" }
 pyth-wormhole-attester-sdk = { path = "../../../wormhole_attester/sdk/rust" }
 pyth-sdk                   = { version = "0.7.0" }
+pythnet-sdk                = { path = "../../../pythnet/pythnet_sdk" }
 serde_wormhole             = { git = "https://github.com/wormhole-foundation/wormhole" }
 strum                      = { version = "0.24.1", features = ["derive"] }
 thiserror                  = { version = "1.0.38" }
 wormhole-core              = { git = "https://github.com/wormhole-foundation/wormhole" }
 
 [patch.crates-io]
-serde_wormhole             = { git = "https://github.com/wormhole-foundation/wormhole" }
+serde_wormhole             = { git = "https://github.com/wormhole-foundation/wormhole", rev = "4ddeca4dbdba50e2cbf6e603242f8c75d9246e2a" }
 
 [dev-dependencies]
 lazy_static                = { version = "1.4.0" }

target_chains/near/receiver/deploy.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+
+INIT_ARGS=$(cat <<-EOF
+{
+    "wormhole": "wormhole.wormhole.testnet",
+    "codehash": [164, 14, 107, 15, 190, 232, 208, 235, 112, 211, 222, 28, 219, 44, 65, 197, 14, 136, 98, 3, 140, 61, 207, 211, 221, 184, 237, 78, 167, 115, 95, 234],
+    "initial_source": {
+        "emitter": [225, 1, 250, 237, 172, 88, 81, 227, 43, 155, 35, 181, 249, 65, 26, 140, 43, 172, 74, 174, 62, 212, 221, 123, 129, 29, 209, 167, 46, 164, 170, 113],
+        "chain": 26
+    },
+    "gov_source": {
+        "emitter": [86, 53, 151, 154, 34, 28, 52, 147, 30, 50, 98, 11, 146, 147, 164, 99, 6, 85, 85, 234, 113, 254, 151, 205, 98, 55, 173, 232, 117, 177, 46, 158],
+        "chain": 1
+    },
+    "update_fee": "1",
+    "stale_threshold": 60
+}
+EOF
+)
+
+INIT_JSON=$(echo "$INIT_ARGS" | jq -c '.' -M)
+
+near deploy \
+    --accountId "780e82bd52465f8a4f5ed8cf5a30666eb41208849956bf87a377da9d8174e2b7" \
+    --wasmFile pyth.wasm \
+    --initFunction new \
+    --initArgs "$INIT_JSON"

target_chains/near/receiver/rust-toolchain

@@ -0,0 +1 @@
+1.69.0-x86_64-unknown-linux-gnu

target_chains/near/receiver/src/error.rs

@@ -37,8 +37,8 @@ pub enum Error {
     #[error("Governance Module Action not valid.")]
     InvalidGovernanceAction,
 
-    #[error("Source for attestation is not allowed.")]
-    UnknownSource,
+    #[error("Source for attestation is not allowed. {0:?}")]
+    UnknownSource([u8; 32]),
 
     #[error("Unauthorized Upgrade.")]
     UnauthorizedUpgrade,
@@ -57,6 +57,18 @@ pub enum Error {
 
     #[error("Unknown error.")]
     Unknown,
+
+    #[error("Invalid merkle proof.")]
+    InvalidMerkleProof,
+
+    #[error("Invalid accumulator message.")]
+    InvalidAccumulatorMessage,
+
+    #[error("Invalid accumulator message type.")]
+    InvalidAccumulatorMessageType,
+
+    #[error("Invalid wormhole message.")]
+    InvalidWormholeMessage,
 }
 
 /// Convert IO errors into Payload errors, the only I/O we do is parsing with `Cursor` so this is a

target_chains/near/receiver/src/ext.rs

@@ -1,7 +1,20 @@
 //! This module defines external contract API's that are used by the contract. This includes
 //! Wormhole and perhaps any ancillary Pyth contracts.
 
-use near_sdk::ext_contract;
+use {
+    crate::{
+        error::Error,
+        state::{
+            Price,
+            PriceIdentifier,
+            Source,
+        },
+    },
+    near_sdk::{
+        ext_contract,
+        json_types::U128,
+    },
+};
 
 /// Defines the external contract API we care about for interacting with Wormhole. Note that
 /// Wormhole on NEAR passes VAA's as hex encoded strings so that the explorer can display them in a
@@ -11,3 +24,19 @@ pub trait Wormhole {
     /// Returns the Governance Index of the current GuardianSet only if the VAA verifies.
     fn verify_vaa(&self, vaa: String) -> u32;
 }
+
+/// An external definition of the Pyth interface.
+#[ext_contract(ext_pyth)]
+pub trait Pyth {
+    fn update_price_feeds(&mut self, data: String) -> Result<(), Error>;
+    fn get_update_fee_estimate(&self, vaa: String) -> U128;
+    fn get_sources(&self) -> Vec<Source>;
+    fn get_stale_threshold(&self) -> u64;
+    fn price_feed_exists(&self, price_identifier: PriceIdentifier) -> bool;
+    fn get_price(&self, price_identifier: PriceIdentifier) -> Option<Price>;
+    fn get_price_unsafe(&self, price_identifier: PriceIdentifier) -> Option<Price>;
+    fn get_price_no_older_than(&self, price_id: PriceIdentifier, age: u64) -> Option<Price>;
+    fn get_ema_price(&self, price_id: PriceIdentifier) -> Option<Price>;
+    fn get_ema_price_unsafe(&self, price_id: PriceIdentifier) -> Option<Price>;
+    fn get_ema_price_no_older_than(&self, price_id: PriceIdentifier, age: u64) -> Option<Price>;
+}

target_chains/near/receiver/src/governance.rs

@@ -280,7 +280,7 @@ impl Pyth {
                         emitter: vaa.emitter_address,
                         chain:   vaa.emitter_chain,
                     }),
-                UnknownSource
+                UnknownSource(vaa.emitter_address)
             );
         }
 
@@ -500,7 +500,7 @@ impl Pyth {
     fn is_valid_governance_source(&self, source: &Source) -> Result<(), Error> {
         (self.gov_source == *source)
             .then_some(())
-            .ok_or(UnknownSource)
+            .ok_or(UnknownSource(source.emitter))
     }
 }
 

target_chains/near/receiver/src/lib.rs

@@ -27,7 +27,25 @@ use {
         Promise,
         StorageUsage,
     },
-    pyth_wormhole_attester_sdk::BatchPriceAttestation,
+    pyth_wormhole_attester_sdk::{
+        BatchPriceAttestation,
+        P2W_MAGIC,
+    },
+    pythnet_sdk::{
+        accumulators::merkle::MerkleRoot,
+        hashers::keccak256_160::Keccak160,
+        messages::Message,
+        wire::{
+            from_slice,
+            v1::{
+                AccumulatorUpdateData,
+                Proof,
+                WormholeMessage,
+                WormholePayload,
+                PYTHNET_ACCUMULATOR_UPDATE_MAGIC,
+            },
+        },
+    },
     state::{
         Price,
         PriceFeed,
@@ -35,11 +53,15 @@ use {
         Source,
         Vaa,
     },
-    std::io::Cursor,
+    std::io::{
+        Cursor,
+        Read,
+    },
 };
 
 pub mod error;
 pub mod ext;
+#[cfg(not(feature = "library"))]
 pub mod governance;
 pub mod state;
 pub mod tests;
@@ -53,7 +75,9 @@ enum StorageKeys {
 /// The `State` contains all persisted state for the contract. This includes runtime configuration.
 ///
 /// There is no valid Default state for this contract, so we derive PanicOnDefault to force
-/// deployment using one of the #[init] functions in the impl below.
+/// deployment using one of the #[init] functions in the impl below. We also want to disable
+/// this whole definition if the "library" feature flag is on.
+#[cfg(not(feature = "library"))]
 #[near_bindgen]
 #[derive(BorshDeserialize, BorshSerialize, PanicOnDefault)]
 pub struct Pyth {
@@ -89,6 +113,7 @@ pub struct Pyth {
     update_fee: u128,
 }
 
+#[cfg(not(feature = "library"))]
 #[near_bindgen]
 impl Pyth {
     #[init]
@@ -129,62 +154,70 @@ impl Pyth {
     /// done in a callback handler, see `process_vaa_callback`.
     #[payable]
     #[handle_result]
-    pub fn update_price_feed(&mut self, vaa_hex: String) -> Result<(), Error> {
-        // We Verify the VAA is coming from a trusted source chain before attempting to verify
-        // VAA signatures. Avoids a cross-contract call early.
-        let vaa = hex::decode(&vaa_hex).map_err(|_| Error::InvalidHex)?;
-        let vaa = serde_wormhole::from_slice_with_payload::<wormhole::Vaa<()>>(&vaa);
-        let vaa = vaa.map_err(|_| Error::InvalidVaa)?;
-        let (vaa, _rest) = vaa;
-
-        // Convert to local VAA type to catch APi changes.
-        let vaa = Vaa::from(vaa);
-
-        if !self.sources.contains(&Source {
-            emitter: vaa.emitter_address,
-            chain:   vaa.emitter_chain,
-        }) {
-            return Err(Error::UnknownSource);
+    pub fn update_price_feeds(&mut self, data: String) -> Result<(), Error> {
+        // Attempt to deserialize the Payload based on header.
+        let bytes = &*hex::decode(data.clone()).map_err(|_| Error::InvalidHex)?;
+        let cursor = &mut Cursor::new(bytes);
+        let mut header = [0u8; 4];
+        cursor.clone().read_exact(&mut header).unwrap();
+
+        // Handle Accumulator style Price Updates.
+        if &header == PYTHNET_ACCUMULATOR_UPDATE_MAGIC {
+            let update_data =
+                AccumulatorUpdateData::try_from_slice(&cursor.clone().into_inner()).unwrap();
+
+            match update_data.proof {
+                Proof::WormholeMerkle { vaa, .. } => {
+                    self.verify_encoded_vaa_source(vaa.as_ref())?;
+                    let vaa_hex = hex::encode(vaa.as_ref());
+                    ext_wormhole::ext(self.wormhole.clone())
+                        .with_static_gas(Gas(30_000_000_000_000))
+                        .verify_vaa(vaa_hex.clone())
+                        .then(
+                            Self::ext(env::current_account_id())
+                                .with_static_gas(Gas(30_000_000_000_000))
+                                .with_attached_deposit(env::attached_deposit())
+                                .verify_wormhole_merkle_callback(
+                                    env::predecessor_account_id(),
+                                    data,
+                                ),
+                        )
+                        .then(
+                            Self::ext(env::current_account_id())
+                                .with_static_gas(Gas(30_000_000_000_000))
+                                .refund_vaa(env::predecessor_account_id(), env::attached_deposit()),
+                        );
+                }
+            };
+        } else {
+            // We Verify the VAA is coming from a trusted source chain before attempting to verify
+            // VAA signatures. Avoids a cross-contract call early.
+            self.verify_encoded_vaa_source(bytes)?;
+
+            // Verify VAA and refund the caller in case of failure.
+            ext_wormhole::ext(self.wormhole.clone())
+                .with_static_gas(Gas(30_000_000_000_000))
+                .verify_vaa(data.clone())
+                .then(
+                    Self::ext(env::current_account_id())
+                        .with_static_gas(Gas(30_000_000_000_000))
+                        .with_attached_deposit(env::attached_deposit())
+                        .verify_wormhole_batch_callback(env::predecessor_account_id(), data),
+                )
+                .then(
+                    Self::ext(env::current_account_id())
+                        .with_static_gas(Gas(30_000_000_000_000))
+                        .refund_vaa(env::predecessor_account_id(), env::attached_deposit()),
+                );
         }
 
-        // Verify VAA and refund the caller in case of failure.
-        ext_wormhole::ext(self.wormhole.clone())
-            .with_static_gas(Gas(30_000_000_000_000))
-            .verify_vaa(vaa_hex.clone())
-            .then(
-                Self::ext(env::current_account_id())
-                    .with_static_gas(Gas(30_000_000_000_000))
-                    .with_attached_deposit(env::attached_deposit())
-                    .verify_vaa_callback(env::predecessor_account_id(), vaa_hex),
-            )
-            .then(
-                Self::ext(env::current_account_id())
-                    .with_static_gas(Gas(30_000_000_000_000))
-                    .refund_vaa(env::predecessor_account_id(), env::attached_deposit()),
-            );
-
         Ok(())
     }
 
-    /// Return the deposit required to update a price feed. This is the upper limit for an update
-    /// call and any remaining deposit not consumed for storage will be refunded.
-    #[allow(unused_variables)]
-    pub fn get_update_fee_estimate(&self, vaa: String) -> U128 {
-        let byte_cost = env::storage_byte_cost();
-        let data_cost = byte_cost * std::mem::size_of::<PriceFeed>() as u128;
-
-        // The const multiplications here are to provide additional headway for any unexpected data
-        // costs in NEAR's storage calculations.
-        //
-        // 5 is the upper limit for PriceFeed amount in a single update.
-        // 4 is the value obtained through testing for headway.
-        (5u128 * 4u128 * data_cost + self.update_fee).into()
-    }
-
     #[payable]
     #[private]
     #[handle_result]
-    pub fn verify_vaa_callback(
+    pub fn verify_wormhole_batch_callback(
         &mut self,
         account_id: AccountId,
         vaa: String,
@@ -214,12 +247,19 @@ impl Pyth {
         let (_, rest): (wormhole::Vaa<()>, _) =
             serde_wormhole::from_slice_with_payload(&vaa).unwrap();
 
-        // Attempt to deserialize the Batch of Price Attestations.
+        // Attempt to deserialize the Payload based on header.
         let bytes = &mut Cursor::new(rest);
-        let batch = BatchPriceAttestation::deserialize(bytes).unwrap();
+        let mut header = [0u8; 4];
+        bytes.clone().read_exact(&mut header).unwrap();
+
+        // Check the header is a P2W header and return if not.
+        if &header != P2W_MAGIC {
+            return Err(Error::InvalidVaa);
+        }
 
         // Verify the PriceAttestation's are new enough, and if so, store them.
         let mut count_updates = 0;
+        let batch = BatchPriceAttestation::deserialize(bytes).unwrap();
         for price_attestation in &batch.price_attestations {
             if self.update_price_feed_if_new(PriceFeed::from(price_attestation)) {
                 count_updates += 1;
@@ -238,7 +278,97 @@ impl Pyth {
                     "costs": {},
                 }}
             }}
-        "#,
+            "#,
+            count_updates,
+            env::storage_usage() - storage,
+            env::storage_byte_cost() * (env::storage_usage() - storage) as u128,
+        );
+
+        // Refund storage difference to `account_id` after storage execution.
+        self.refund_storage_usage(
+            account_id,
+            storage,
+            env::storage_usage(),
+            env::attached_deposit(),
+        )
+    }
+
+    #[payable]
+    #[private]
+    #[handle_result]
+    pub fn verify_wormhole_merkle_callback(
+        &mut self,
+        account_id: AccountId,
+        data: String,
+        #[callback_result] _result: Result<u32, near_sdk::PromiseError>,
+    ) -> Result<(), Error> {
+        if !is_promise_success() {
+            return Err(Error::VaaVerificationFailed);
+        }
+
+        // Get Storage Usage before execution, subtracting the fee from the deposit has the effect
+        // forces the caller to add the required fee to the deposit. The protocol defines the fee
+        // as a u128, but storage is a u64, so we need to check that the fee does not overflow the
+        // storage cost as well.
+        let storage = (env::storage_usage() as u128)
+            .checked_sub(
+                self.update_fee
+                    .checked_div(env::storage_byte_cost())
+                    .ok_or(Error::ArithmeticOverflow)?,
+            )
+            .ok_or(Error::InsufficientDeposit)
+            .and_then(|s| u64::try_from(s).map_err(|_| Error::ArithmeticOverflow))?;
+
+        let mut count_updates = 0;
+        let bytes = &*hex::decode(data.clone()).map_err(|_| Error::InvalidHex)?;
+        let cursor = &mut Cursor::new(bytes);
+        let update_data =
+            AccumulatorUpdateData::try_from_slice(&cursor.clone().into_inner()).unwrap();
+
+        match update_data.proof {
+            Proof::WormholeMerkle { vaa, updates } => {
+                let (_, rest): (wormhole::Vaa<()>, _) =
+                    serde_wormhole::from_slice_with_payload(vaa.as_ref()).unwrap();
+                let message = WormholeMessage::try_from_bytes(rest)
+                    .map_err(|_| Error::InvalidWormholeMessage)?;
+                let root: MerkleRoot<Keccak160> = MerkleRoot::new(match message.payload {
+                    WormholePayload::Merkle(merkle_root) => merkle_root.root,
+                });
+
+                for update in updates {
+                    let message_vec = Vec::from(update.message);
+                    if !root.check(update.proof, &message_vec) {
+                        return Err(Error::InvalidMerkleProof)?;
+                    }
+
+                    let msg = from_slice::<byteorder::BE, Message>(&message_vec)
+                        .map_err(|_| Error::InvalidAccumulatorMessage)?;
+
+                    match msg {
+                        Message::PriceFeedMessage(price_feed_message) => {
+                            if self.update_price_feed_if_new(PriceFeed::from(&price_feed_message)) {
+                                count_updates += 1;
+                            }
+                        }
+                        _ => return Err(Error::InvalidAccumulatorMessageType)?,
+                    }
+                }
+            }
+        }
+
+        log!(
+            r#"
+            {{
+                "standard": "pyth",
+                "version":  "1.0",
+                "event":    "AccumulatorUpdates",
+                "data":     {{
+                    "count": {},
+                    "diffs": {},
+                    "costs": {},
+                }}
+            }}
+            "#,
             count_updates,
             env::storage_usage() - storage,
             env::storage_byte_cost() * (env::storage_usage() - storage) as u128,
@@ -253,6 +383,40 @@ impl Pyth {
         )
     }
 
+    /// Return the deposit required to update a price feed. This is the upper limit for an update
+    /// call and any remaining deposit not consumed for storage will be refunded.
+    #[allow(unused_variables)]
+    pub fn get_update_fee_estimate(&self, data: String) -> U128 {
+        let byte_cost = env::storage_byte_cost();
+        let data_cost = byte_cost * std::mem::size_of::<PriceFeed>() as u128;
+
+        // If the data is an Accumulator style update, we should count he number of updates being
+        // calculated in the fee.
+        let bytes = hex::decode(data).unwrap();
+        let cursor = &mut Cursor::new(bytes);
+        let mut header = [0u8; 4];
+        let mut total_updates = 0u128;
+        cursor.clone().read_exact(&mut header).unwrap();
+        if &header == PYTHNET_ACCUMULATOR_UPDATE_MAGIC {
+            let update_data =
+                AccumulatorUpdateData::try_from_slice(&cursor.clone().into_inner()).unwrap();
+            match update_data.proof {
+                Proof::WormholeMerkle { vaa: _, updates } => {
+                    total_updates += updates.len() as u128;
+                }
+            }
+        } else {
+            total_updates = 1;
+        }
+
+        // The const multiplications here are to provide additional headway for any unexpected data
+        // costs in NEAR's storage calculations.
+        //
+        // 5 is the upper limit for PriceFeed amount in a single update.
+        // 4 is the value obtained through testing for headway.
+        (5u128 * 4u128 * data_cost + self.update_fee * total_updates).into()
+    }
+
     /// Read the list of accepted `Source` chains for a price attestation.
     pub fn get_sources(&self) -> Vec<Source> {
         self.sources.iter().collect()
@@ -347,7 +511,26 @@ impl Pyth {
 /// This second `impl Pyth` block contains only private methods that are called internally that
 /// have no transaction semantics associated with them. Note that these do not need `#[private]`
 /// annotations as they are already uncallable.
+#[cfg(not(feature = "library"))]
 impl Pyth {
+    /// Verify a VAA source from a serialized VAA.
+    fn verify_encoded_vaa_source(&self, vaa: &[u8]) -> Result<(), Error> {
+        let (vaa, _): (wormhole::Vaa<()>, _) =
+            serde_wormhole::from_slice_with_payload(vaa).unwrap();
+
+        // Convert to local VAA type to catch API changes.
+        let vaa = Vaa::from(vaa);
+
+        if !self.sources.contains(&Source {
+            emitter: vaa.emitter_address,
+            chain:   vaa.emitter_chain,
+        }) {
+            return Err(Error::UnknownSource(vaa.emitter_address));
+        }
+
+        Ok(())
+    }
+
     /// Updates the Price Feed only if it is newer than the current one. This function never fails
     /// and will either update in-place or not update at all. The return value indicates whether
     /// the update was performed or not.
@@ -399,6 +582,7 @@ impl Pyth {
     }
 }
 
+#[cfg(not(feature = "library"))]
 #[no_mangle]
 pub extern "C" fn update_contract() {
     env::setup_panic_hook();

target_chains/near/receiver/src/state.rs

@@ -11,6 +11,7 @@ use {
         },
     },
     pyth_wormhole_attester_sdk::PriceAttestation,
+    pythnet_sdk::messages::PriceFeedMessage,
     wormhole::Chain as WormholeChain,
 };
 
@@ -80,6 +81,26 @@ impl From<&PriceAttestation> for PriceFeed {
     }
 }
 
+impl From<&PriceFeedMessage> for PriceFeed {
+    fn from(price_feed_message: &PriceFeedMessage) -> Self {
+        Self {
+            id:        PriceIdentifier(price_feed_message.feed_id),
+            price:     Price {
+                price:     price_feed_message.price,
+                conf:      price_feed_message.conf,
+                expo:      price_feed_message.exponent,
+                timestamp: price_feed_message.publish_time.try_into().unwrap(),
+            },
+            ema_price: Price {
+                price:     price_feed_message.ema_price,
+                conf:      price_feed_message.ema_conf,
+                expo:      price_feed_message.exponent,
+                timestamp: price_feed_message.publish_time.try_into().unwrap(),
+            },
+        }
+    }
+}
+
 /// A wrapper around a 16bit chain identifier. We can't use Chain from the Wormhole SDK as it does
 /// not provide borsh serialization but we can re-wrap it here relying on the validation from
 /// `wormhole::Chain`.

target_chains/near/receiver/tests/workspaces.rs

@@ -1,11 +1,6 @@
 use {
+    byteorder::BigEndian,
     near_sdk::json_types::U128,
-    pyth_wormhole_attester_sdk::{
-        BatchPriceAttestation,
-        Identifier,
-        PriceAttestation,
-        PriceStatus,
-    },
     pyth::{
         governance::{
             GovernanceAction,
@@ -19,6 +14,35 @@ use {
             Source,
         },
     },
+    pyth_wormhole_attester_sdk::{
+        BatchPriceAttestation,
+        Identifier,
+        PriceAttestation,
+        PriceStatus,
+    },
+    pythnet_sdk::{
+        accumulators::{
+            merkle::MerkleTree,
+            Accumulator,
+        },
+        hashers::keccak256_160::Keccak160,
+        messages::{
+            Message,
+            PriceFeedMessage,
+        },
+        wire::{
+            to_vec,
+            v1::{
+                AccumulatorUpdateData,
+                MerklePriceUpdate,
+                Proof,
+                WormholeMerkleRoot,
+                WormholeMessage,
+                WormholePayload,
+            },
+            PrefixedVec,
+        },
+    },
     serde_json::json,
     std::io::{
         Cursor,
@@ -347,21 +371,22 @@ async fn test_stale_threshold() {
         cur.write_all(
             &BatchPriceAttestation {
                 price_attestations: vec![PriceAttestation {
-                    product_id:         Identifier::default(),
-                    price_id:           Identifier::default(),
-                    price:              100,
-                    conf:               1,
-                    expo:               8,
-                    ema_price:          100,
-                    ema_conf:           1,
-                    status:             PriceStatus::Trading,
-                    num_publishers:     8,
-                    max_num_publishers: 8,
-                    attestation_time:   now.try_into().unwrap(),
-                    publish_time:       now.try_into().unwrap(),
-                    prev_publish_time:  now.try_into().unwrap(),
-                    prev_price:         100,
-                    prev_conf:          1,
+                    product_id:                 Identifier::default(),
+                    price_id:                   Identifier::default(),
+                    price:                      100,
+                    conf:                       1,
+                    expo:                       8,
+                    ema_price:                  100,
+                    ema_conf:                   1,
+                    status:                     PriceStatus::Trading,
+                    num_publishers:             8,
+                    max_num_publishers:         8,
+                    attestation_time:           now.try_into().unwrap(),
+                    publish_time:               now.try_into().unwrap(),
+                    prev_publish_time:          now.try_into().unwrap(),
+                    prev_price:                 100,
+                    prev_conf:                  1,
+                    last_attested_publish_time: now.try_into().unwrap(),
                 }],
             }
             .serialize()
@@ -389,7 +414,7 @@ async fn test_stale_threshold() {
         .gas(300_000_000_000_000)
         .deposit(update_fee.into())
         .args_json(&json!({
-            "vaa_hex": vaa,
+            "data": vaa,
         }))
         .transact_async()
         .await
@@ -430,21 +455,22 @@ async fn test_stale_threshold() {
         cur.write_all(
             &BatchPriceAttestation {
                 price_attestations: vec![PriceAttestation {
-                    product_id:         Identifier::default(),
-                    price_id:           Identifier::default(),
-                    price:              1000,
-                    conf:               1,
-                    expo:               8,
-                    ema_price:          1000,
-                    ema_conf:           1,
-                    status:             PriceStatus::Trading,
-                    num_publishers:     8,
-                    max_num_publishers: 8,
-                    attestation_time:   (now - 1024).try_into().unwrap(),
-                    publish_time:       (now - 1024).try_into().unwrap(),
-                    prev_publish_time:  (now - 1024).try_into().unwrap(),
-                    prev_price:         90,
-                    prev_conf:          1,
+                    product_id:                 Identifier::default(),
+                    price_id:                   Identifier::default(),
+                    price:                      1000,
+                    conf:                       1,
+                    expo:                       8,
+                    ema_price:                  1000,
+                    ema_conf:                   1,
+                    status:                     PriceStatus::Trading,
+                    num_publishers:             8,
+                    max_num_publishers:         8,
+                    attestation_time:           (now - 1024).try_into().unwrap(),
+                    publish_time:               (now - 1024).try_into().unwrap(),
+                    prev_publish_time:          (now - 1024).try_into().unwrap(),
+                    prev_price:                 90,
+                    prev_conf:                  1,
+                    last_attested_publish_time: (now - 1024).try_into().unwrap(),
                 }],
             }
             .serialize()
@@ -460,7 +486,7 @@ async fn test_stale_threshold() {
         .gas(300_000_000_000_000)
         .deposit(update_fee.into())
         .args_json(&json!({
-            "vaa_hex": vaa,
+            "data": vaa,
         }))
         .transact_async()
         .await
@@ -647,21 +673,22 @@ async fn test_contract_fees() {
         cur.write_all(
             &BatchPriceAttestation {
                 price_attestations: vec![PriceAttestation {
-                    product_id:         Identifier::default(),
-                    price_id:           Identifier::default(),
-                    price:              1000,
-                    conf:               1,
-                    expo:               8,
-                    ema_price:          1000,
-                    ema_conf:           1,
-                    status:             PriceStatus::Trading,
-                    num_publishers:     8,
-                    max_num_publishers: 8,
-                    attestation_time:   (now - 1024).try_into().unwrap(),
-                    publish_time:       (now - 1024).try_into().unwrap(),
-                    prev_publish_time:  (now - 1024).try_into().unwrap(),
-                    prev_price:         90,
-                    prev_conf:          1,
+                    product_id:                 Identifier::default(),
+                    price_id:                   Identifier::default(),
+                    price:                      1000,
+                    conf:                       1,
+                    expo:                       8,
+                    ema_price:                  1000,
+                    ema_conf:                   1,
+                    status:                     PriceStatus::Trading,
+                    num_publishers:             8,
+                    max_num_publishers:         8,
+                    attestation_time:           (now - 1024).try_into().unwrap(),
+                    publish_time:               (now - 1024).try_into().unwrap(),
+                    prev_publish_time:          (now - 1024).try_into().unwrap(),
+                    prev_price:                 90,
+                    prev_conf:                  1,
+                    last_attested_publish_time: (now - 1024).try_into().unwrap(),
                 }],
             }
             .serialize()
@@ -676,7 +703,7 @@ async fn test_contract_fees() {
         .gas(300_000_000_000_000)
         .deposit(update_fee.into())
         .args_json(&json!({
-            "vaa_hex": vaa,
+            "data": vaa,
         }))
         .transact_async()
         .await
@@ -940,3 +967,164 @@ async fn test_governance_target_fails_if_not_near() {
         .failures()
         .is_empty());
 }
+
+// A test to check accumulator style updates work as intended.
+#[tokio::test]
+async fn test_accumulator_updates() {
+    fn create_dummy_price_feed_message(value: i64) -> Message {
+        let mut dummy_id = [0; 32];
+        dummy_id[0] = value as u8;
+        let msg = PriceFeedMessage {
+            feed_id:           dummy_id,
+            price:             value,
+            conf:              value as u64,
+            exponent:          value as i32,
+            publish_time:      value,
+            prev_publish_time: value,
+            ema_price:         value,
+            ema_conf:          value as u64,
+        };
+        Message::PriceFeedMessage(msg)
+    }
+
+    fn create_accumulator_message_from_updates(
+        price_updates: Vec<MerklePriceUpdate>,
+        tree: MerkleTree<Keccak160>,
+        corrupt_wormhole_message: bool,
+        emitter_address: [u8; 32],
+        emitter_chain: u16,
+    ) -> Vec<u8> {
+        let mut root_hash = [0u8; 20];
+        root_hash.copy_from_slice(&to_vec::<_, BigEndian>(&tree.root).unwrap()[..20]);
+        let wormhole_message = WormholeMessage::new(WormholePayload::Merkle(WormholeMerkleRoot {
+            slot:      0,
+            ring_size: 0,
+            root:      root_hash,
+        }));
+
+        let vaa = wormhole::Vaa {
+            emitter_chain: emitter_chain.into(),
+            emitter_address: wormhole::Address(emitter_address),
+            sequence: 2,
+            payload: (),
+            ..Default::default()
+        };
+
+        let vaa = {
+            let mut cur = Cursor::new(Vec::new());
+            serde_wormhole::to_writer(&mut cur, &vaa).expect("Failed to serialize VAA");
+            cur.write_all(&to_vec::<_, BigEndian>(&wormhole_message).unwrap())
+                .expect("Failed to write Payload");
+            cur.into_inner()
+        };
+
+        let accumulator_update_data = AccumulatorUpdateData::new(Proof::WormholeMerkle {
+            vaa:     PrefixedVec::from(vaa),
+            updates: price_updates,
+        });
+
+        to_vec::<_, BigEndian>(&accumulator_update_data).unwrap()
+    }
+
+    fn create_accumulator_message(
+        all_feeds: &[Message],
+        updates: &[Message],
+        corrupt_wormhole_message: bool,
+    ) -> Vec<u8> {
+        let all_feeds_bytes: Vec<_> = all_feeds
+            .iter()
+            .map(|f| to_vec::<_, BigEndian>(f).unwrap())
+            .collect();
+        let all_feeds_bytes_refs: Vec<_> = all_feeds_bytes.iter().map(|f| f.as_ref()).collect();
+        let tree = MerkleTree::<Keccak160>::new(all_feeds_bytes_refs.as_slice()).unwrap();
+        let mut price_updates: Vec<MerklePriceUpdate> = vec![];
+        for update in updates {
+            let proof = tree
+                .prove(&to_vec::<_, BigEndian>(update).unwrap())
+                .unwrap();
+            price_updates.push(MerklePriceUpdate {
+                message: PrefixedVec::from(to_vec::<_, BigEndian>(update).unwrap()),
+                proof,
+            });
+        }
+        create_accumulator_message_from_updates(
+            price_updates,
+            tree,
+            corrupt_wormhole_message,
+            [1; 32],
+            wormhole::Chain::Any.into(),
+        )
+    }
+
+    let (_, contract, _) = initialize_chain().await;
+
+    // Submit a new Source to the contract, this will trigger a cross-contract call to wormhole
+    let vaa = wormhole::Vaa {
+        emitter_chain: wormhole::Chain::Any,
+        emitter_address: wormhole::Address([0; 32]),
+        sequence: 1,
+        payload: (),
+        ..Default::default()
+    };
+
+    let vaa = {
+        let mut cur = Cursor::new(Vec::new());
+        serde_wormhole::to_writer(&mut cur, &vaa).expect("Failed to serialize VAA");
+        cur.write_all(
+            &GovernanceInstruction {
+                target: Chain::from(WormholeChain::Any),
+                module: GovernanceModule::Target,
+                action: GovernanceAction::SetDataSources {
+                    data_sources: vec![
+                        Source::default(),
+                        Source {
+                            emitter: [1; 32],
+                            chain:   Chain::from(WormholeChain::Any),
+                        },
+                    ],
+                },
+            }
+            .serialize()
+            .unwrap(),
+        )
+        .expect("Failed to write Payload");
+        hex::encode(cur.into_inner())
+    };
+
+    assert!(contract
+        .call("execute_governance_instruction")
+        .gas(300_000_000_000_000)
+        .deposit(300_000_000_000_000_000_000_000)
+        .args_json(&json!({
+            "vaa": vaa,
+        }))
+        .transact_async()
+        .await
+        .expect("Failed to submit VAA")
+        .await
+        .unwrap()
+        .failures()
+        .is_empty());
+
+    // Create a couple of test feeds.
+    let feed_1 = create_dummy_price_feed_message(100);
+    let feed_2 = create_dummy_price_feed_message(200);
+    let message = create_accumulator_message(&[feed_1, feed_2], &[feed_1], false);
+    let message = hex::encode(message);
+
+    // Call the usual UpdatePriceFeed function.
+    assert!(contract
+        .call("update_price_feed")
+        .gas(300_000_000_000_000)
+        .deposit(300_000_000_000_000_000_000_000)
+        .args_json(&json!({
+            "data": message,
+        }))
+        .transact_async()
+        .await
+        .expect("Failed to submit VAA")
+        .await
+        .unwrap()
+        .failures()
+        .is_empty());
+}

target_chains/near/receiver/transfers.sh

@@ -0,0 +1,12 @@
+# near send 8c77a9896504848e06092618aa166aea4470153c16d38af3902c2ac688eb3a12 780e82bd52465f8a4f5ed8cf5a30666eb41208849956bf87a377da9d8174e2b7 9.9
+# near send 245e9ccf5f51a6eb08d80095db8623809f0a9a3fc2811c2b316d3b3305c6a4bc 780e82bd52465f8a4f5ed8cf5a30666eb41208849956bf87a377da9d8174e2b7 9.9
+# near send f2f8df27296c9d01da063a6cc724dcbadb844ab1490e0b4f0e56995ed2a10239 780e82bd52465f8a4f5ed8cf5a30666eb41208849956bf87a377da9d8174e2b7 9.9
+# near send c1aae1fb5b504865ee2748257a6ec4b86b4b0c215c1ecfc0da66f389f5d5c510 780e82bd52465f8a4f5ed8cf5a30666eb41208849956bf87a377da9d8174e2b7 9.9
+# near send 6c1233da7e91a72f0e298c16d04eb729d8e924a2806d5a339cdb4159aa2e2514 780e82bd52465f8a4f5ed8cf5a30666eb41208849956bf87a377da9d8174e2b7 9.9
+# near send 192b010686fe6cfca168b2cc21e455b5d10c61037f5ade85b6c791dc81284260 780e82bd52465f8a4f5ed8cf5a30666eb41208849956bf87a377da9d8174e2b7 9.9
+# near send 597c2ec824154507ecd72997bb041a60d357a103fab163891a7b55e64f62e9ca 780e82bd52465f8a4f5ed8cf5a30666eb41208849956bf87a377da9d8174e2b7 9.9
+# near send 985fb94522458ec08a400ea8848d6d6ad4a75eb2a7a394ef1d1752050d49460a 780e82bd52465f8a4f5ed8cf5a30666eb41208849956bf87a377da9d8174e2b7 9.9
+# near send ce94a02bf130fa5a68daa09fead47d2b6f0768ff16b9ca1311a88ce8c9f4e9ea 780e82bd52465f8a4f5ed8cf5a30666eb41208849956bf87a377da9d8174e2b7 9.9
+# near send 63c97554b0995d67ebe264730782f7366494207a635b3684270c3523865a501a 780e82bd52465f8a4f5ed8cf5a30666eb41208849956bf87a377da9d8174e2b7 9.9
+# near send 879ad801aedfaeaf1924ce3e31e8111ee04548703c922b25a3eae67ea2887776 780e82bd52465f8a4f5ed8cf5a30666eb41208849956bf87a377da9d8174e2b7 9.9
+near send 83f84e22f92089bef6a2ae443626c92e894f10a46b426ffd575e9ea14da2a3f2 780e82bd52465f8a4f5ed8cf5a30666eb41208849956bf87a377da9d8174e2b7 200

target_chains/near/receiver/update.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+
+UPDATE_ARGS=$(
+	cat <<-EOF
+		{
+		    "data": "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"
+		}
+	EOF
+)
+
+UPDATE_JSON=$(echo "$UPDATE_ARGS" | jq -c '.' -M)
+
+near call \
+	--accountId "780e82bd52465f8a4f5ed8cf5a30666eb41208849956bf87a377da9d8174e2b7" \
+    780e82bd52465f8a4f5ed8cf5a30666eb41208849956bf87a377da9d8174e2b7 \
+	update_price_feed \
+    --gas 300000000000000 \
+    --deposit 1 \
+	--args "$UPDATE_JSON"

target_chains/near/wormhole-stub/rust-toolchain

@@ -0,0 +1 @@
+1.69.0-x86_64-unknown-linux-gnu