Dria

In the docmentation, the Protocol says that they accept tokens that are compatible with ERC20 token standard.

However, token like `ERC-777` are backward compatible with ERC-20 tokens, If the Protocol accepts `ERC777` tokens that allows malicious callbacks ,the attacker can Re-Enter the function and can cause multiple `request()` call with the same amount.

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function request(

=> feeToken.transferFrom(msg.sender, address(this), totalfee);

//events emitted after extenal calls

emit Request(taskId, msg.sender, protocol);

emit StatusUpdate(taskId, protocol, TaskStatus.None, TaskStatus.PendingGeneration);

​

these events are important for LLM generation, therefore these events should be emitted before the external call.

​

Even though variables like `nextTaskId` are managed safely here, reentrant calls could still generate multiple request calls that add tasks unnecessarily or duplicate logs and events.

1. consider using Rereentrancy guard from openzeppelin for mitigation.

2. emit the logs before the external call.

```diff

function request(

+ emit Request(taskId, msg.sender, protocol);

+ emit StatusUpdate(taskId, protocol, TaskStatus.None, TaskStatus.PendingGeneration);

feeToken.transferFrom(msg.sender, address(this), totalfee);

​

- emit Request(taskId, msg.sender, protocol);

- emit StatusUpdate(taskId, protocol, TaskStatus.None, TaskStatus.PendingGeneration);

​