use private endpoint insteadof dexscreen to getPair (#190)

* use private endpoint insteadof dexscreen to getPair * add getPair cache and fix bug * prioritize env as RPC url * Compatible with hexadecimal and decimal block strings * Restore Cargo.toml * Compatible with pancake+uniswap on bsc * remove unused decimals in PairData * Prune inefficient pairs * Error message reminder * remove onchain bytecode swapping * remove bytecode swapping in middleware --------- Co-authored-by: Chaofan Shou <[email protected]>
fuzzland · Sep 12, 2023 · 487dd6e · 487dd6e
1 parent 96756fe
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diff --git a/README.md b/README.md
@@ -138,6 +138,8 @@ Caveats:
 
 ### Fuzz a Project (Online)
 
+Ityfuzz will prioritize the use of environment variables `ETH_RPC_URL` as the RPC endpoint, otherwise it will use built-in public RPCs.
+
 Rebuild with `flashloan_v2` (only supported in onchain) enabled to get better result.
 
 ```bash

diff --git a/README_CN.md b/README_CN.md
@@ -127,6 +127,9 @@ ItyFuzz 将自动检测目录中的合约之间的关联（参见`tests/multi-co
 
 ### 在线 Fuzz 一个项目
 
+Ityfuzz 将优先读取 `ETH_RPC_URL` 环境变量作为 RPC 地址，如果没有设置，将使用内置的公共 RPC 地址。
+
+
 （可选）启用 flashloan_v2 重新构建以获得更好的结果。
 
 ```bash

diff --git a/src/cache.rs b/src/cache.rs
@@ -10,7 +10,7 @@ pub trait Cache {
     fn load(&self, key: &str) -> Result<String, Box<dyn Error>>;
 }
 
-#[derive(Clone, Debug)]
+#[derive(Clone, Debug, Default)]
 pub struct FileSystemCache {
     file_path: String,
 }

diff --git a/src/evm/contract_utils.rs b/src/evm/contract_utils.rs
@@ -404,7 +404,7 @@ impl ContractLoader {
                 let result = builder.onchain_job(onchain.chain_name.clone(), addr);
                 if let Some(result) = result {
                     abi = Some(result.abi.clone());
-                    bytecode = Some(to_analysed(Bytecode::new_raw(result.bytecodes.clone())));
+                    bytecode = Some(onchain.get_contract_code(addr, false)); // Some(to_analysed(Bytecode::new_raw(result.bytecodes.clone())));
                     build_artifact = Some(result);
                 }
             }