feat(platform)!: enhance token configuration and validation mechanisms

[QuantumExplorer]

Summary by CodeRabbit

Based on the comprehensive summary of changes, here are the release notes:

• New Features

  • Added support for advanced token management
    • Token configuration updates

• Improvements

  • Enhanced token transition validation
  • Added more granular error handling for token-related operations
  • Improved authorization checks for token actions

• Error Handling

  • Introduced new error types for token operations
  • Added detailed validation for token configuration changes
  • Implemented checks for token supply and identity-based authorizations

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated relevant unit/integration/functional/e2e tests
• I have added "!" to the title and described breaking changes in the corresponding section if my code contains any
• I have made corresponding changes to the documentation if needed

For repository code-owners and collaborators only

• I have assigned this pull request to a milestone

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Walkthrough

This pull request introduces comprehensive enhancements to the token management system in the Dash Platform codebase. The changes span multiple modules and include new error handling mechanisms, expanded authorization capabilities, and improved token configuration update processes. Key modifications include adding new error types for token-related actions, introducing identity-based authorization, and implementing more robust validation for token operations such as minting, burning, freezing, and configuration updates.

Changes

File/Group	Change Summary
rs-dpp/src/data_contract/associated_token/...	Updated max_supply method signature to return Option<TokenAmount>
rs-dpp/src/errors/consensus/...	Added multiple new error types for token-related state transitions and validations
rs-drive-abci/src/execution/validation/...	Enhanced validation logic for token transitions with new error handling
rs-drive/src/state_transition_action/...	Added support for token configuration update operations
Token Transition Methods	Refactored calculate_action_id_with_fields methods across various token transition types

Sequence Diagram

sequenceDiagram
    participant Owner as Token Owner
    participant TokenSystem as Token Management System
    participant Validator as State Transition Validator

    Owner->>TokenSystem: Request Token Action
    TokenSystem->>Validator: Validate Action
    Validator->>Validator: Check Authorization
    Validator->>Validator: Validate Constraints
    alt Action Valid
        Validator-->>TokenSystem: Approve Transition
        TokenSystem-->>Owner: Action Confirmed
    else Action Invalid
        Validator-->>Owner: Reject with Specific Error
    end

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Possibly related PRs

• feat(platform): proof verification for many queries and a few more queries #2431: Changes related to token total supply retrieval methods

Suggested reviewers

• shumkov

Poem

🐰 A Rabbit's Ode to Token Transitions 🚀

In bytes of code, a token's dance,
Minting, burning with each glance,
Constraints and rules now tightly bound,
Where once was chaos, order found!

Hop hop hooray for platform might! 🌟

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[QuantumExplorer]

@coderabbitai review

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Actionable comments posted: 2

🔭 Outside diff range comments (1)

packages/rs-dpp/src/data_contract/associated_token/token_configuration/accessors/mod.rs (1)

Line range hint 59-63: Type mismatch between getter and setter methods.

The max_supply getter returns Option<TokenAmount> while the corresponding set_max_supply setter accepts Option<u64>. This inconsistency could lead to type conversion issues.

Consider updating the setter to match the getter's type:

-    fn set_max_supply(&mut self, max_supply: Option<u64>) {
+    fn set_max_supply(&mut self, max_supply: Option<TokenAmount>) {
         match self {
             TokenConfiguration::V0(v0) => v0.set_max_supply(max_supply),
         }
     }

🧹 Nitpick comments (21)

packages/rs-dpp/src/errors/consensus/state/token/mod.rs (1)

16-22: Consider explicit exports instead of glob operators.

While using pub use module::* is convenient, it can make breaking changes harder to track and might accidentally expose internal implementation details. Consider explicitly listing the exported types:

-pub use invalid_group_position_error::*;
+pub use invalid_group_position_error::InvalidGroupPositionError;

This makes the public API more explicit and helps track breaking changes more effectively.

packages/rs-drive-abci/src/execution/validation/state_transition/state_transitions/batch/action_validation/token/token_mint_transition_action/state_v0/mod.rs (2)

90-90: Clarify the comment for accuracy.

The comment on line 90 is misleading. It should reflect that the total supply after minting would exceed the max_supply, not that a max supply smaller than the current supply is being set.

Apply this diff to correct the comment:

-    // We are trying to set a max supply smaller than the token total supply
+    // Minting would exceed the maximum token supply

---

103-103: Clarify the comment regarding overflow handling.

On line 103, the comment can be more precise. Since checked_add returned None, an overflow occurred, indicating that the total supply after minting exceeds the maximum representable value.

Consider updating the comment:

-    // if we overflow we would also always go over max supply
+    // Overflow occurred; total supply after minting exceeds maximum value

packages/rs-drive-abci/src/execution/validation/state_transition/state_transitions/batch/action_validation/token/token_config_update_transition_action/state_v0/mod.rs (2)

171-248: Consider refactoring to reduce code duplication in identity checks.

Multiple match arms handle AuthorizedActionTakers::Identity(identity_id) and perform similar identity existence checks. Refactoring this repetitive code into a helper function would improve maintainability.

Example refactor:

fn validate_identity_exists(
    platform: &PlatformStateRef,
    identity_id: &Identifier,
    block_info: &BlockInfo,
    execution_context: &mut StateTransitionExecutionContext,
    transaction: TransactionArg,
    platform_version: &PlatformVersion,
) -> Result<(), SimpleConsensusValidationResult> {
    let (identity_balance, fee) = platform.drive.fetch_identity_balance_with_costs(
        identity_id.to_buffer(),
        block_info,
        true,
        transaction,
        platform_version,
    )?;
    execution_context.add_operation(ValidationOperation::PrecalculatedOperation(fee));
    if identity_balance.is_none() {
        return Err(SimpleConsensusValidationResult::new_with_error(
            ConsensusError::StateError(
                StateError::NewAuthorizedActionTakerIdentityDoesNotExistError(
                    NewAuthorizedActionTakerIdentityDoesNotExistError::new(*identity_id),
                ),
            ),
        ));
    }
    Ok(())
}

Replace the repeated code in the match arms with a call to this function.

---

249-325: Consider refactoring to reduce code duplication in group checks.

Similar to the identity checks, multiple match arms handle AuthorizedActionTakers::Group(group_contract_position) and perform the same group existence validation. Extracting this logic into a helper function would enhance code readability.

Example refactor:

fn validate_group_exists(
    contract: &DataContract,
    group_contract_position: &GroupContractPosition,
) -> Result<(), SimpleConsensusValidationResult> {
    if !contract.groups().contains_key(group_contract_position) {
        return Err(SimpleConsensusValidationResult::new_with_error(
            ConsensusError::StateError(
                StateError::NewAuthorizedActionTakerGroupDoesNotExistError(
                    NewAuthorizedActionTakerGroupDoesNotExistError::new(*group_contract_position),
                ),
            ),
        ));
    }
    Ok(())
}

Call this function in the relevant match arms to avoid repetition.

packages/rs-drive-abci/src/execution/validation/state_transition/state_transitions/batch/mod.rs (8)

257-258: Add missing documentation for new imports.

These new imports for GroupV0 and Group should have documentation comments explaining their purpose in the context of token management.

---

264-264: Add missing documentation for GroupStateTransitionInfo import.

The GroupStateTransitionInfo import should have documentation explaining its role in group-based token operations.

---

10200-10204: Add missing documentation for token configuration imports.

The new imports related to token configuration should have documentation explaining their purpose:

• TokenConfigurationV0Getters
• TokenConfigurationV0Setters
• TokenConfiguration
• TokenConfigurationConventionV0
• TokenConfigurationLocalizationsV0

---

10208-10210: Add missing documentation for group and batch transition imports.

The imports for GroupStateTransitionInfoStatus and DocumentsBatchTransitionMethodsV1 should have documentation explaining their roles in token operations.

---

10305-10396: Improve error handling in test_token_mint_by_owner_can_not_mint_past_max_supply.

The test verifies that minting tokens beyond the max supply fails, but could be improved:

1. Add assertions to verify the exact error message
2. Add checks for the token's total supply before and after the failed mint
3. Consider testing edge cases like minting exactly at max supply

 let processing_result = platform
     .platform
     .process_raw_state_transitions(
         &vec![documents_batch_create_serialized_transition.clone()],
         &platform_state,
         &BlockInfo::default(),
         &transaction,
         platform_version,
         false,
         None,
     )
     .expect("expected to process state transition");

+// Verify exact error message
+let error = match &processing_result.execution_results()[0] {
+    StateTransitionExecutionResult::PaidConsensusError(
+        ConsensusError::StateError(StateError::TokenMintPastMaxSupplyError(err)),
+        _
+    ) => err,
+    _ => panic!("Expected TokenMintPastMaxSupplyError"),
+};
+assert_eq!(error.max_supply, 1000000);
+assert_eq!(error.attempted_mint_amount, 2000000);

+// Verify total supply hasn't changed
+let total_supply = platform
+    .drive
+    .fetch_token_total_supply(token_id.to_buffer(), None, platform_version)
+    .expect("expected to fetch total supply");
+assert_eq!(total_supply, Some(100000));

---

14524-14525: Add missing documentation for non_group test module.

The non-group test module should have documentation explaining its purpose and the test scenarios it covers.

+/// Tests for token configuration updates without group authorization
+/// 
+/// These tests verify configuration updates when:
+/// - Changes are made by contract owner
+/// - Changes are made by authorized identities
+/// - Error cases for unauthorized changes
 mod non_group {

---

15187-15188: Add missing documentation for with_group test module.

The with_group test module should have documentation explaining its purpose and the test scenarios it covers.

+/// Tests for token configuration updates with group authorization
+/// 
+/// These tests verify configuration updates when:
+/// - Changes require group approval
+/// - Multiple group members must sign
+/// - Error cases for incomplete group approval
 mod with_group {

---

15309-15878: Improve test coverage in test_token_config_update_by_owner_change_admin_to_a_non_existent_group_error.

The test verifies error handling for non-existent groups but could be improved:

1. Add test cases for edge cases like group ID 0 and max u32
2. Add verification of error details
3. Test attempting to use a deleted group

 #[test]
 fn test_token_config_update_by_owner_change_admin_to_a_non_existent_group_error() {
     // Existing test code...
     
+    // Test edge case - group ID 0 when no groups exist
+    let config_update_transition = BatchTransition::new_token_config_update_transition(
+        token_id,
+        identity.id(),
+        contract.id(),
+        0,
+        TokenConfigurationChangeItem::MaxSupplyControlGroup(
+            AuthorizedActionTakers::Group(0),
+        ),
+        None,
+        None,
+        &key,
+        3,
+        0,
+        &signer,
+        platform_version,
+        None,
+        None,
+        None,
+    ).expect("expect to create transition");
+
+    // Process and verify error
+    let processing_result = platform.platform.process_raw_state_transitions(...);
+    let error = match &processing_result.execution_results()[0] {
+        StateTransitionExecutionResult::PaidConsensusError(
+            ConsensusError::StateError(
+                StateError::NewAuthorizedActionTakerGroupDoesNotExistError(err)
+            ),
+            _
+        ) => err,
+        _ => panic!("Expected NewAuthorizedActionTakerGroupDoesNotExistError"),
+    };
+    assert_eq!(error.group_id, 0);
+
+    // Test max group ID
+    let config_update_transition = BatchTransition::new_token_config_update_transition(
+        // Same params but with u32::MAX group
+        AuthorizedActionTakers::Group(u32::MAX),
+    );
+    // Process and verify error

packages/rs-dpp/src/errors/consensus/state/token/new_authorized_action_taker_identity_does_not_exist_error.rs (1)

12-16: Consider adding documentation for the error type.

While the implementation is correct, adding documentation comments would improve maintainability by explaining when this error occurs and how to handle it.

Add documentation like this:

+/// Error returned when attempting to set an authorized action taker identity that does not exist.
+/// This typically occurs during token configuration updates when the specified identity
+/// has not been registered in the platform.
 #[derive(
     Error, Debug, Clone, PartialEq, Eq, Encode, Decode, PlatformSerialize, PlatformDeserialize,
 )]

packages/rs-dpp/src/errors/consensus/state/token/new_authorized_action_taker_group_does_not_exist_error.rs (2)

25-27: Consider adding #[must_use] attribute.

The getter method returns a value that shouldn't be ignored. Adding #[must_use] would help catch cases where the return value is accidentally discarded.

+    #[must_use]
     pub fn group_contract_position(&self) -> GroupContractPosition {
         self.group_contract_position
     }

---

1-8: Consider creating a common error handling macro.

All four error types follow a similar pattern with identical trait derivations and serialization attributes. Consider creating a custom macro to reduce boilerplate and ensure consistency:

/// Create a new error type with standard derive macros and serialization support
macro_rules! define_consensus_error {
    (
        $(#[doc = $doc:expr])*
        $vis:vis struct $name:ident {
            $(
                $field_vis:vis $field:ident: $ty:ty
            ),*
        }
    ) => {
        $(#[doc = $doc])*
        #[derive(Error, Debug, Clone, PartialEq, Eq, Encode, Decode,
                PlatformSerialize, PlatformDeserialize)]
        #[platform_serialize(unversioned)]
        $vis struct $name {
            $(
                $field_vis $field: $ty
            ),*
        }
    };
}

Also applies to: 1-8, 1-8, 1-8

packages/rs-dpp/src/errors/consensus/state/token/token_setting_max_supply_to_less_than_current_supply_error.rs (1)

1-48: LGTM! Consider adding documentation for error conditions.

The implementation is well-structured with proper error handling traits and clear error messaging. The error type effectively captures all necessary information for debugging token supply issues.

Consider adding documentation comments to describe specific scenarios when this error occurs and potential remediation steps. Example:

/// Represents an error when attempting to set a token's maximum supply to a value
/// less than its current supply.
///
/// # Example
/// This error occurs when updating token configuration with a new max supply that
/// would invalidate existing tokens in circulation.
pub struct TokenSettingMaxSupplyToLessThanCurrentSupplyError {

packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_burn_transition/v0_methods.rs (1)

78-82: Consider using a constant for the action prefix.

The action prefix "action_token_burn" could be defined as a constant to ensure consistency across the codebase.

+const TOKEN_BURN_ACTION_PREFIX: &[u8] = b"action_token_burn";

 impl TokenBurnTransition {
     pub fn calculate_action_id_with_fields(
         token_id: &[u8; 32],
         owner_id: &[u8; 32],
         identity_contract_nonce: IdentityNonce,
         burn_amount: TokenAmount,
     ) -> Identifier {
-        let mut bytes = b"action_token_burn".to_vec();
+        let mut bytes = TOKEN_BURN_ACTION_PREFIX.to_vec();
         bytes.extend_from_slice(token_id);

packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_config_update_transition/v0_methods.rs (1)

77-90: Consider defining the action prefix as a constant.

The implementation looks good, but the byte string "action_token_config_update" could be defined as a constant at the module level for better maintainability and reusability.

+const TOKEN_CONFIG_UPDATE_ACTION_PREFIX: &[u8] = b"action_token_config_update";
+
 impl TokenConfigUpdateTransition {
     pub fn calculate_action_id_with_fields(
         token_id: &[u8; 32],
         owner_id: &[u8; 32],
         identity_contract_nonce: IdentityNonce,
         update_token_config_item: u8,
     ) -> Identifier {
-        let mut bytes = b"action_token_config_update".to_vec();
+        let mut bytes = TOKEN_CONFIG_UPDATE_ACTION_PREFIX.to_vec();
         bytes.extend_from_slice(token_id);

packages/rs-drive/src/drive/tokens/system/fetch_token_total_supply/v0/mod.rs (1)

33-58: Consider adding error context for fee calculation failures.

While the implementation is correct, consider adding context to fee calculation errors to make debugging easier.

         let fees = Drive::calculate_fee(
             None,
             Some(drive_operations),
             &block_info.epoch,
             self.config.epochs_per_era,
             platform_version,
             None,
-        )?;
+        ).map_err(|e| Error::from(e).context("Failed to calculate fees for token total supply fetch"))?;
         Ok((token_amount, fees))

packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/v1/v0_methods.rs (1)

34-34: Consider breaking down the import line for better readability.

The import line is quite long and combines multiple token-related types. Consider breaking it into multiple lines for better maintainability.

-use crate::state_transition::batch_transition::{BatchTransitionV1, TokenBurnTransition, TokenConfigUpdateTransition, TokenDestroyFrozenFundsTransition, TokenEmergencyActionTransition, TokenFreezeTransition, TokenMintTransition, TokenTransferTransition, TokenUnfreezeTransition};
+use crate::state_transition::batch_transition::{
+    BatchTransitionV1,
+    TokenBurnTransition,
+    TokenConfigUpdateTransition,
+    TokenDestroyFrozenFundsTransition,
+    TokenEmergencyActionTransition,
+    TokenFreezeTransition,
+    TokenMintTransition,
+    TokenTransferTransition,
+    TokenUnfreezeTransition,
+};

📜 Review details

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📥 Commits

Reviewing files that changed from the base of the PR and between 2480ceb and b9a0a26.

📒 Files selected for processing (40)

• packages/rs-dpp/src/data_contract/associated_token/token_configuration/accessors/mod.rs (1 hunks)
• packages/rs-dpp/src/data_contract/change_control_rules/authorized_action_takers.rs (3 hunks)
• packages/rs-dpp/src/errors/consensus/basic/basic_error.rs (1 hunks)
• packages/rs-dpp/src/errors/consensus/basic/token/mod.rs (0 hunks)
• packages/rs-dpp/src/errors/consensus/codes.rs (2 hunks)
• packages/rs-dpp/src/errors/consensus/state/state_error.rs (2 hunks)
• packages/rs-dpp/src/errors/consensus/state/token/invalid_group_position_error.rs (3 hunks)
• packages/rs-dpp/src/errors/consensus/state/token/mod.rs (1 hunks)
• packages/rs-dpp/src/errors/consensus/state/token/new_authorized_action_taker_group_does_not_exist_error.rs (1 hunks)
• packages/rs-dpp/src/errors/consensus/state/token/new_authorized_action_taker_identity_does_not_exist_error.rs (1 hunks)
• packages/rs-dpp/src/errors/consensus/state/token/new_authorized_action_taker_main_group_not_set_error.rs (1 hunks)
• packages/rs-dpp/src/errors/consensus/state/token/new_tokens_destination_identity_does_not_exist_error.rs (1 hunks)
• packages/rs-dpp/src/errors/consensus/state/token/token_mint_past_max_supply_error.rs (1 hunks)
• packages/rs-dpp/src/errors/consensus/state/token/token_setting_max_supply_to_less_than_current_supply_error.rs (1 hunks)
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_burn_transition/v0/v0_methods.rs (2 hunks)
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_burn_transition/v0_methods.rs (2 hunks)
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_config_update_transition/v0/v0_methods.rs (2 hunks)
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_config_update_transition/v0_methods.rs (2 hunks)
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_destroy_frozen_funds_transition/v0/v0_methods.rs (1 hunks)
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_destroy_frozen_funds_transition/v0_methods.rs (1 hunks)
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_emergency_action_transition/v0/v0_methods.rs (1 hunks)
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_emergency_action_transition/v0_methods.rs (1 hunks)
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_freeze_transition/v0/v0_methods.rs (1 hunks)
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_freeze_transition/v0_methods.rs (1 hunks)
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_unfreeze_transition/v0/v0_methods.rs (1 hunks)
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_unfreeze_transition/v0_methods.rs (1 hunks)
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/methods/mod.rs (2 hunks)
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/methods/v1/mod.rs (2 hunks)
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/v1/v0_methods.rs (3 hunks)
• packages/rs-drive-abci/src/execution/validation/state_transition/state_transitions/batch/action_validation/token/token_base_transition_action/state_v0/mod.rs (1 hunks)
• packages/rs-drive-abci/src/execution/validation/state_transition/state_transitions/batch/action_validation/token/token_config_update_transition_action/state_v0/mod.rs (3 hunks)
• packages/rs-drive-abci/src/execution/validation/state_transition/state_transitions/batch/action_validation/token/token_mint_transition_action/state_v0/mod.rs (3 hunks)
• packages/rs-drive-abci/src/execution/validation/state_transition/state_transitions/batch/mod.rs (4 hunks)
• packages/rs-drive/src/drive/group/fetch/mod.rs (0 hunks)
• packages/rs-drive/src/drive/group/mod.rs (1 hunks)
• packages/rs-drive/src/drive/tokens/mod.rs (0 hunks)
• packages/rs-drive/src/drive/tokens/system/fetch_token_total_supply/mod.rs (2 hunks)
• packages/rs-drive/src/drive/tokens/system/fetch_token_total_supply/v0/mod.rs (2 hunks)
• packages/rs-drive/src/state_transition_action/action_convert_to_operations/batch/token/token_config_update_transition.rs (2 hunks)
• packages/rs-drive/src/verify/state_transition/verify_state_transition_was_executed_with_proof/v0/mod.rs (2 hunks)

💤 Files with no reviewable changes (3)

• packages/rs-drive/src/drive/group/fetch/mod.rs
• packages/rs-dpp/src/errors/consensus/basic/token/mod.rs
• packages/rs-drive/src/drive/tokens/mod.rs

✅ Files skipped from review due to trivial changes (8)

• packages/rs-drive/src/drive/group/mod.rs
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_emergency_action_transition/v0/v0_methods.rs
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_destroy_frozen_funds_transition/v0/v0_methods.rs
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_unfreeze_transition/v0/v0_methods.rs
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_freeze_transition/v0_methods.rs
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_freeze_transition/v0/v0_methods.rs
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_destroy_frozen_funds_transition/v0_methods.rs
• packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_unfreeze_transition/v0_methods.rs

🧰 Additional context used

📓 Learnings (3)

packages/rs-dpp/src/data_contract/associated_token/token_configuration/accessors/mod.rs (1)

Learnt from: QuantumExplorer
PR: dashpay/platform#2432
File: packages/rs-dpp/src/data_contract/associated_token/token_configuration/v0/mod.rs:222-225
Timestamp: 2025-01-20T16:20:59.791Z
Learning: In the Dash Platform codebase, TokenAmount from crate::balances::credits is compatible with u64 when used for token base supply.

packages/rs-drive/src/drive/tokens/system/fetch_token_total_supply/mod.rs (2)

Learnt from: QuantumExplorer
PR: dashpay/platform#2431
File: packages/rs-drive/src/drive/tokens/system/fetch_token_total_aggregated_identity_balances/v0/mod.rs:42-50
Timestamp: 2025-01-19T07:36:09.383Z
Learning: The `add_estimation_costs_for_token_balances` method in Drive is a properly implemented estimation logic method used for token balance operations, and the warning about incomplete estimation logic was incorrect.

Learnt from: QuantumExplorer
PR: dashpay/platform#2431
File: packages/rs-drive/src/drive/tokens/system/fetch_token_total_supply/v0/mod.rs:31-71
Timestamp: 2025-01-19T07:36:32.294Z
Learning: Token ID zero validation is not required in the fetch_token_total_supply_v0 method, as confirmed by the maintainer.

packages/rs-drive/src/drive/tokens/system/fetch_token_total_supply/v0/mod.rs (2)

Learnt from: QuantumExplorer
PR: dashpay/platform#2431
File: packages/rs-drive/src/drive/tokens/system/fetch_token_total_aggregated_identity_balances/v0/mod.rs:42-50
Timestamp: 2025-01-19T07:36:09.383Z
Learning: The `add_estimation_costs_for_token_balances` method in Drive is a properly implemented estimation logic method used for token balance operations, and the warning about incomplete estimation logic was incorrect.

Learnt from: QuantumExplorer
PR: dashpay/platform#2431
File: packages/rs-drive/src/drive/tokens/system/fetch_token_total_supply/v0/mod.rs:31-71
Timestamp: 2025-01-19T07:36:32.294Z
Learning: Token ID zero validation is not required in the fetch_token_total_supply_v0 method, as confirmed by the maintainer.

🔇 Additional comments (30)

packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_emergency_action_transition/v0_methods.rs (2)

82-82: LGTM! Byte extension order matches parameter order.

The byte extension order has been correctly updated to maintain consistency with the parameter reordering, preserving the deterministic nature of the action ID calculation.

---

76-76: Verify all callers are updated for the breaking parameter reorder.

The parameter reordering in calculate_action_id_with_fields is a breaking change. While the change appears intentional and consistent with other changes, we should ensure all callers are updated.

✅ Verification successful

Parameter reordering is consistently applied across the codebase

The parameter ordering in calculate_action_id_with_fields is consistent across all token-related transitions and their respective callers. All implementations and calls follow the same pattern: token_id, owner_id, identity_contract_nonce, followed by the transition-specific parameter.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for all calls to calculate_action_id_with_fields to verify they've been updated
ast-grep --pattern 'calculate_action_id_with_fields($$$)'

Length of output: 59

---

Script:

#!/bin/bash
# Search for method definition and calls using ripgrep
echo "=== Searching for method definition ==="
rg -p "fn calculate_action_id_with_fields" -A 5

echo -e "\n=== Searching for method calls ==="
rg "calculate_action_id_with_fields\(" -A 2

Length of output: 15865

packages/rs-dpp/src/errors/consensus/state/token/mod.rs (1)

4-10: Well-structured error modules for token validation scenarios!

The new error modules provide comprehensive coverage for various token validation scenarios including group positions, authorization checks, token destinations, and supply constraints. The naming is clear and consistent with Rust conventions.

packages/rs-dpp/src/errors/consensus/state/token/invalid_group_position_error.rs (2)

37-38: Good addition of the getter method for max_group_position.

The new getter method max_group_position() properly provides access to the max_group_position field.

---

48-48: Verify the impact of changing the error variant from BasicError to StateError.

Changing the error conversion to use StateError::InvalidGroupPositionError may affect error handling elsewhere in the codebase. Ensure that all references and handlers for this error are updated accordingly.

packages/rs-drive-abci/src/execution/validation/state_transition/state_transitions/batch/action_validation/token/token_mint_transition_action/state_v0/mod.rs (1)

76-123: Implementing max supply validation logic correctly.

The added logic appropriately checks that minting does not exceed the max_supply defined in the token configuration. It handles potential overflows and corrupted state scenarios effectively.

packages/rs-drive-abci/src/execution/validation/state_transition/state_transitions/batch/action_validation/token/token_config_update_transition_action/state_v0/mod.rs (4)

94-128: Max supply update validation is correctly implemented.

The logic correctly ensures that the new max_supply is not less than the current token_total_supply, preventing inconsistencies in token circulation.

---

129-148: Proper validation of new tokens destination identity.

The code correctly checks if the specified NewTokensDestinationIdentity exists, enhancing security by preventing tokens from being assigned to non-existent identities.

---

149-170: Validating the existence of the main control group.

The check ensures that the provided MainControlGroup exists within the data contract's groups, maintaining data integrity.

---

326-379: Validating main control group presence for AuthorizedActionTakers::MainGroup.

The code correctly checks if the main_control_group is set before allowing it to be used as an AuthorizedActionTaker, ensuring proper configuration.

packages/rs-dpp/src/errors/consensus/state/token/new_authorized_action_taker_main_group_not_set_error.rs (1)

10-17: LGTM! Well-structured error type with comprehensive trait implementations.

The error type correctly implements all necessary traits for error handling and serialization.

packages/rs-dpp/src/errors/consensus/state/token/new_tokens_destination_identity_does_not_exist_error.rs (1)

23-25: Consider implementing Copy for Identifier.

The getter method returns a copy of the Identifier. If Identifier is small and Copy is cheap, implementing Copy would allow returning by value instead of reference.

Let's check the size and traits of Identifier:

packages/rs-dpp/src/errors/consensus/state/token/token_mint_past_max_supply_error.rs (1)

1-60: LGTM! Consider adding overflow protection.

The error type is well-implemented with proper use of TokenAmount for consistent handling of token values.

Since this error is used in minting validation, we should verify that overflow checks are implemented in the minting logic. Let's check the implementation:

✅ Verification successful

Supply validation is properly implemented with overflow protection

The implementation in token_mint_transition_action/state_v0/mod.rs includes both overflow checks and max supply validation:

• Checks for overflow when adding mint_amount to current_supply
• Validates that the resulting total doesn't exceed max_supply
• Provides detailed error information when limits are exceeded

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for overflow checks in minting validation
rg -A 5 "fn.*mint.*validate" 
ast-grep --pattern 'if $amount + $current_supply > $max_supply { $$$'

Length of output: 102

---

Script:

#!/bin/bash
# Search for mint-related functions and files
rg -l "mint" --type rust
rg "fn.*mint" -A 10 --type rust

Length of output: 89688

---

Script:

#!/bin/bash
# Search for validation implementation in token mint action
rg -A 10 "validate.*token.*mint" --type rust
rg -A 10 "fn.*validate" packages/rs-drive-abci/src/execution/validation/state_transition/state_transitions/batch/action_validation/token/token_mint_transition_action

Length of output: 14842

---

Script:

#!/bin/bash
# Search for supply validation in token mint state validation
rg -A 20 "fn validate_state_v0" packages/rs-drive-abci/src/execution/validation/state_transition/state_transitions/batch/action_validation/token/token_mint_transition_action/state_v0/mod.rs

# Search for supply-related checks
rg -A 5 "current_supply|max_supply|total_supply" --type rust

Length of output: 69241

---

Script:

#!/bin/bash
# Search for the validation implementation in token mint state validation
rg -A 20 "test_token_mint_by_owner_can_not_mint_past_max_supply" packages/rs-drive-abci/src/execution/validation/state_transition/state_transitions/batch/mod.rs

# Search for supply validation in token mint action state validation
rg -A 20 "validate_state" packages/rs-drive-abci/src/execution/validation/state_transition/state_transitions/batch/action_validation/token/token_mint_transition_action/state_v0/mod.rs

Length of output: 2978

---

Script:

#!/bin/bash
# Search for base validation implementation and supply checks
rg -A 20 "impl.*TokenTransitionActionBase" --type rust
rg -A 20 "validate_state.*TokenTransitionActionBase" --type rust

Length of output: 123

---

Script:

#!/bin/bash
# Search for token mint validation and supply checks
rg -A 20 "TokenMintPastMaxSupplyError" --type rust
rg -A 20 "max_supply.*current_supply" --type rust
rg -A 20 "fn validate" packages/rs-drive-abci/src/execution/validation/state_transition/state_transitions/batch/action_validation/token/mod.rs

Length of output: 37008

packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_burn_transition/v0/v0_methods.rs (1)

68-73: LGTM! Good refactoring of action ID calculation.

The refactoring improves maintainability by centralizing the action ID calculation logic into a dedicated method.

packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_burn_transition/v0_methods.rs (1)

71-86: LGTM! Robust implementation with proper domain separation.

The action ID calculation follows cryptographic best practices by using domain separation and consistent byte ordering.

Let's verify consistency with other action ID calculations:

✅ Verification successful

Verified: Action ID calculation is consistent with all other token actions

The implementation follows the same pattern used across all token-related transitions, with proper domain separation and consistent field ordering.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Check for consistent domain separation in other action ID calculations
rg -A 5 'b"action_token_' 

Length of output: 7926

packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/batched_transition/token_config_update_transition/v0/v0_methods.rs (1)

79-84: LGTM! Good refactoring of action ID calculation.

The implementation correctly delegates to the new helper method, improving code organization and reusability.

packages/rs-drive/src/drive/tokens/system/fetch_token_total_supply/mod.rs (1)

39-65: LGTM! Well-structured implementation of cost calculation.

The method properly handles versioning and error cases, maintaining consistency with the existing implementation pattern.

packages/rs-dpp/src/data_contract/change_control_rules/authorized_action_takers.rs (3)

18-18: LGTM! Identity-based authorization is a good addition.

The new Identity(Identifier) variant enhances the authorization system by allowing fine-grained access control at the individual identity level.

---

30-30: LGTM! Display implementation is consistent.

The formatting for the Identity variant follows the established pattern and provides clear output.

---

56-60: LGTM! Identity authorization check is properly implemented.

The implementation correctly handles both single and multiple identity cases, maintaining consistency with existing authorization patterns.

packages/rs-drive/src/state_transition_action/action_convert_to_operations/batch/token/token_config_update_transition.rs (1)

82-82: LGTM! Version increment ensures proper change tracking.

The version increment is correctly placed after cloning the contract and before applying configuration changes, maintaining data consistency.

packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/methods/v1/mod.rs (1)

171-188: LGTM! New token config update transition method is well-defined.

The method signature is comprehensive and follows the established pattern of other token transition methods, with proper feature flags and parameter types.

packages/rs-drive-abci/src/execution/validation/state_transition/state_transitions/batch/action_validation/token/token_base_transition_action/state_v0/mod.rs (1)

104-106: LGTM! Security enhancement for group action validation.

Adding Identity(_) to the unauthorized cases prevents potential authorization bypass by ensuring identity-based authorizations cannot perform group actions.

packages/rs-dpp/src/errors/consensus/state/state_error.rs (1)

233-257: LGTM! Well-structured error handling additions.

The new error variants are properly organized within the token errors section and follow the existing pattern with appropriate transparency attributes.

packages/rs-dpp/src/errors/consensus/codes.rs (1)

250-256: LGTM! Proper error code assignments.

The new error variants are assigned sequential codes (40154-40160) within the token errors range, maintaining consistency with the existing error code structure.

packages/rs-dpp/src/errors/consensus/basic/basic_error.rs (1)

76-77: LGTM! Clean error handling reorganization.

The removal of InvalidGroupPositionError from BasicError and its relocation to StateError improves the organization of error handling by grouping related errors together.

packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/methods/mod.rs (2)

864-923: Review the security level for token configuration updates.

The implementation uses SecurityLevel::CRITICAL for signing token configuration updates, while other token-related transitions use SecurityLevel::HIGH. This difference in security levels needs verification.

✅ Verification successful

Security level for token configuration updates is correctly set to CRITICAL

The use of SecurityLevel::CRITICAL for token configuration updates is appropriate as it aligns with other sensitive system operations like contract updates and identity credit operations, while regular document operations use SecurityLevel::HIGH.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for all security level usages in token-related transitions
echo "Searching for security level usage patterns..."
rg -A 2 "SecurityLevel::" --type rust

Length of output: 64292

---

866-882: Verify feature version handling consistency.

The method accepts three different feature versions (batch_feature_version, config_update_feature_version, base_feature_version) but only uses the batch version in the implementation. Ensure this aligns with the versioning strategy.

✅ Verification successful

Feature version handling is correctly implemented.

The current implementation follows a deliberate design pattern where:

• batch_feature_version is used for version selection in the batch transition system
• Other feature versions are intentionally unused parameters (marked with _) to maintain API consistency and future extensibility

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for feature version usage patterns in token transitions
rg -A 5 "feature_version: Option<FeatureVersion>" --type rust

Length of output: 78104

---

Script:

#!/bin/bash
# Search for the implementation of new_token_config_update_transition
ast-grep --pattern 'fn new_token_config_update_transition<$_>($_) {
  $$$
}'

Length of output: 78

---

Script:

#!/bin/bash
# Search for new_token_config_update_transition implementation with context
rg -U "new_token_config_update_transition" -A 20 --type rust

Length of output: 71791

packages/rs-dpp/src/state_transition/state_transitions/document/batch_transition/v1/v0_methods.rs (1)

918-985: Verify the error handling for token configuration updates.

The implementation needs to handle potential errors when applying token configuration changes. Ensure that all error cases are properly handled and propagated.

✅ Verification successful

Error handling for token configuration updates is properly implemented

The implementation includes comprehensive error handling through:

• Validation of configuration updates via validate_token_config_update
• Authorization checks through can_apply_token_configuration_item
• Group existence validation via validate_token_config_groups_exist
• Proper error propagation using Result types and specific error types

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Search for error handling patterns in token configuration updates
rg "TokenConfigUpdateTransition|TokenConfigurationChangeItem" -A 10 -B 10 --type rust

Length of output: 80408

---

Script:

#!/bin/bash
# Search for validation and error handling in token configuration
rg "fn validate|fn apply|fn verify" -A 5 -B 5 --type rust packages/rs-dpp/src/data_contract/associated_token/token_configuration_item/
rg "TokenConfigurationChangeItem.*Error" -A 5 -B 5 --type rust

Length of output: 318

---

Script:

#!/bin/bash
# Find token configuration related files
fd "token.*configuration" --type f

# Search for token configuration validation patterns
rg "impl.*Token.*Configuration" -A 10 -B 10 --type rust
rg "Error.*token.*config" -i -A 5 -B 5 --type rust

Length of output: 70750

packages/rs-drive/src/verify/state_transition/verify_state_transition_was_executed_with_proof/v0/mod.rs (1)

321-321: LGTM! Performance improvement using constant.

The change from SystemDataContract::TokenHistory.id().to_buffer() to TOKEN_HISTORY_ID_BYTES constant improves performance by avoiding runtime computation.