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Problem: e2ee module not up to date #1610

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merged 17 commits into from
Sep 27, 2024
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yihuang
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@yihuang yihuang commented Sep 26, 2024

Solution:

  • sync with 1.3.x branch

👮🏻👮🏻👮🏻 !!!! REFERENCE THE PROBLEM YOUR ARE SOLVING IN THE PR TITLE AND DESCRIBE YOUR SOLUTION HERE !!!! DO NOT FORGET !!!! 👮🏻👮🏻👮🏻

PR Checklist:

  • Have you read the CONTRIBUTING.md?
  • Does your PR follow the C4 patch requirements?
  • Have you rebased your work on top of the latest master?
  • Have you checked your code compiles? (make)
  • Have you included tests for any non-trivial functionality?
  • Have you checked your code passes the unit tests? (make test)
  • Have you checked your code formatting is correct? (go fmt)
  • Have you checked your basic code style is fine? (golangci-lint run)
  • If you added any dependencies, have you checked they do not contain any known vulnerabilities? (go list -json -m all | nancy sleuth)
  • If your changes affect the client infrastructure, have you run the integration test?
  • If your changes affect public APIs, does your PR follow the C4 evolution of public contracts?
  • If your code changes public APIs, have you incremented the crate version numbers and documented your changes in the CHANGELOG.md?
  • If you are contributing for the first time, please read the agreement in CONTRIBUTING.md now and add a comment to this pull request stating that your PR is in accordance with the Developer's Certificate of Origin.

Thank you for your code, it's appreciated! :)

Summary by CodeRabbit

Release Notes

  • New Features

    • Integrated end-to-end encryption (E2EE) functionality into the application.
    • Enhanced transaction proposal handling with new validation logic.
    • Added new tests for E2EE key management and blocklist functionality.
  • Bug Fixes

    • Improved accuracy of blocklist checks by ensuring proper address formatting.
  • Documentation

    • Updated the CHANGELOG to reflect synchronization with the v1.3.x branch.
  • Chores

    • Removed outdated dependencies from project configuration files.

Solution:
- sync with 1.3.x branch
@yihuang yihuang requested a review from a team as a code owner September 26, 2024 08:03
@yihuang yihuang requested review from mmsqe and JayT106 and removed request for a team September 26, 2024 08:03
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coderabbitai bot commented Sep 26, 2024

Walkthrough

The changes encompass various modifications across multiple files, primarily introducing functionalities related to end-to-end encryption (E2EE) and blocklist management. Key additions include the integration of the filippo.io/age package for E2EE, updates to transaction handling, and enhancements to the testing suite for E2EE key management. Dependencies have been removed, and existing functions have been refined to support the new features, particularly in transaction validation and blocklist processing.

Changes

Files Change Summary
CHANGELOG.md Added entry for synchronization of the e2ee module with the v1.3.x branch.
app/app.go, app/block_address.go Introduced E2EE functionality, including new identity handling, transaction proposal logic, and improved signer checks in block address validation.
go.mod, gomod2nix.toml Removed dependency on github.com/test-go/testify v1.1.4.
integration_tests/test_e2ee.py Enhanced tests for E2EE key management, added tests for blocklists, and refactored existing tests for clarity and structure, including new helper functions for key generation and blocklist encryption.

Possibly related PRs

Suggested reviewers

  • calvinaco

Poem

🐇 In the garden of code, new features bloom,
With blocklists and keys, there's always room.
Encrypting our secrets, we hop with delight,
In the world of E2EE, everything feels right!
So let's cheer for the changes, both big and small,
For a rabbit's new journey, we welcome them all! 🌼


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📥 Commits

Files that changed from the base of the PR and between 55f6856 and 44a0072.

📒 Files selected for processing (1)
  • app/app.go (10 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
  • app/app.go

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CHANGELOG.md Outdated Show resolved Hide resolved
Signed-off-by: yihuang <[email protected]>
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codecov bot commented Sep 26, 2024

Codecov Report

Attention: Patch coverage is 54.01929% with 143 lines in your changes missing coverage. Please review.

Project coverage is 36.97%. Comparing base (bbdd407) to head (44a0072).
Report is 1 commits behind head on main.

Files with missing lines Patch % Lines
app/proposal.go 22.66% 57 Missing and 1 partial ⚠️
x/e2ee/client/cli/encrypt_to_validators.go 59.37% 13 Missing and 13 partials ⚠️
x/cronos/types/messages.go 46.15% 13 Missing and 1 partial ⚠️
x/e2ee/client/cli/pubkey.go 60.00% 5 Missing and 5 partials ⚠️
x/e2ee/client/cli/query.go 82.22% 4 Missing and 4 partials ⚠️
x/cronos/keeper/msg_server.go 0.00% 7 Missing ⚠️
x/cronos/client/cli/tx.go 73.91% 3 Missing and 3 partials ⚠️
x/cronos/keeper/grpc_query.go 0.00% 6 Missing ⚠️
x/e2ee/types/msg.go 0.00% 5 Missing ⚠️
x/e2ee/client/cli/tx.go 92.30% 1 Missing and 1 partial ⚠️
... and 1 more
Additional details and impacted files

Impacted file tree graph

@@            Coverage Diff             @@
##             main    #1610      +/-   ##
==========================================
+ Coverage   36.12%   36.97%   +0.84%     
==========================================
  Files          97      102       +5     
  Lines        7725     8035     +310     
==========================================
+ Hits         2791     2971     +180     
- Misses       4585     4686     +101     
- Partials      349      378      +29     
Files with missing lines Coverage Δ
x/cronos/keeper/keeper.go 63.52% <100.00%> (+0.46%) ⬆️
x/cronos/types/keys.go 0.00% <ø> (ø)
x/e2ee/client/cli/cmd.go 100.00% <100.00%> (ø)
x/e2ee/module.go 65.95% <100.00%> (+3.16%) ⬆️
app/block_address.go 23.07% <0.00%> (ø)
x/e2ee/client/cli/tx.go 92.30% <92.30%> (ø)
x/e2ee/types/msg.go 41.66% <0.00%> (-1.20%) ⬇️
x/cronos/client/cli/tx.go 42.85% <73.91%> (+3.21%) ⬆️
x/cronos/keeper/grpc_query.go 0.00% <0.00%> (ø)
x/cronos/keeper/msg_server.go 14.28% <0.00%> (-1.79%) ⬇️
... and 5 more

... and 1 file with indirect coverage changes

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Actionable comments posted: 9

🧹 Outside diff range and nitpick comments (29)
client/docs/swagger-ui/swagger.yaml (2)

7-216: Approve new endpoint with suggestion for documentation.

The new /cronos/v1/blocklist endpoint is well-defined and includes proper error handling. However, the extensive documentation about the Any type in the error response might be unnecessary for this specific endpoint.

Consider simplifying the error response documentation by removing or reducing the detailed explanation of the Any type (lines 38-214). This information might be more appropriate in a general API documentation section rather than for this specific endpoint.


44895-44901: Approve new response definition with suggestion for documentation.

The cronos.QueryBlockListResponse is well-defined and consistent with the endpoint's success response schema.

Consider adding a description for the blob field to clarify its contents and purpose. For example:

blob:
  type: string
  format: byte
  description: "The binary representation of the blocklist data."
x/e2ee/client/cli/cmd.go (1)

15-16: LGTM! Consider adding brief comments for new commands.

The addition of EncryptToValidatorsCommand() and PubKeyCommand() to the e2ee command list is appropriate and aligns with the PR objectives of updating the e2ee module. These new commands expand the functionality of the e2ee CLI, which is beneficial.

Consider adding brief comments above each new command to explain their purpose. This would improve code documentation and make it easier for other developers to understand the functionality of each command. For example:

// Encrypt a message to all validators
EncryptToValidatorsCommand(),
// Retrieve or manage public keys
PubKeyCommand(),
x/e2ee/types/msg.go (1)

Line range hint 1-31: Overall assessment: Implementation satisfies interface requirements with room for improvement.

The changes in this file successfully implement the sdk.Msg interface for MsgRegisterEncryptionKey. The code is generally well-structured and aligns with the PR objectives of updating the e2ee module. However, there's an opportunity to improve error handling in the GetSigners method as noted in the previous comment.

Consider reviewing the error handling strategy across the e2ee module to ensure consistency and robustness, especially in methods that implement interface requirements.

x/e2ee/client/cli/pubkey.go (1)

14-19: LGTM: Function signature and command definition are well-structured.

The function and command are defined correctly following Cobra conventions. However, a minor suggestion:

Consider updating the Short description for clarity:

-		Short: "Show the recipient of current identity stored in keyring",
+		Short: "Display the public key of the current identity stored in the keyring",

This more accurately describes the command's function, as it's specifically showing the public key.

x/e2ee/client/cli/tx.go (1)

26-50: LGTM: CmdRegisterAccount function is well-implemented with a minor suggestion.

The CmdRegisterAccount function correctly sets up the command for registering an encryption key. It follows Cosmos SDK best practices by:

  1. Properly constructing the MsgRegisterEncryptionKey.
  2. Implementing error handling for client context and message validation.
  3. Using tx.GenerateOrBroadcastTxCLI for transaction handling.
  4. Adding transaction flags to the command.

Consider enhancing the command description to provide more context about the purpose and implications of registering an encryption key. For example:

-		Short: "Register encryption key stores an public key for asymmetric encryption with the user address.",
+		Short: "Register a public key for asymmetric encryption associated with the user's address",
+		Long: `Register an encryption key that will be stored and associated with the user's address.
+This key is used for asymmetric encryption in end-to-end encrypted communications.
+Registering a new key will overwrite any previously registered key for the same address.`,

This provides users with more information about the command's purpose and its effects.

x/cronos/types/keys.go (2)

30-30: LGTM! Consider adding a comment for clarity.

The addition of prefixBlockList is consistent with the existing pattern and naming convention.

Consider adding a brief comment explaining the purpose of this prefix, similar to other constants in this file. For example:

// prefixBlockList is used for storing block list related data
prefixBlockList

41-41: LGTM! Consider aligning the declaration for consistency.

The addition of KeyPrefixBlockList is consistent with the existing pattern and naming convention.

For better readability and consistency with other declarations, consider aligning the = sign:

KeyPrefixBlockList             = []byte{prefixBlockList}
x/e2ee/client/cli/query.go (2)

26-52: LGTM: CmdEncryptionKey function is well-implemented.

The function correctly sets up the command to query a single encryption key by address. It follows Cosmos SDK patterns and handles errors appropriately.

Consider adding a comment above the function to explain its purpose and usage, for example:

// CmdEncryptionKey creates a CLI command to query an encryption key for a given address.
// It returns the encryption key in protobuf format.

54-78: LGTM with suggestions: CmdEncryptionKeys function is well-implemented but could be improved.

The function correctly sets up the command to query multiple encryption keys by addresses. It follows Cosmos SDK patterns and handles errors appropriately.

  1. Consider adding a comment above the function to explain its purpose and usage, for example:
// CmdEncryptionKeys creates a CLI command to query encryption keys for multiple addresses.
// It returns the encryption keys in protobuf format.
  1. Add argument validation to ensure at least one address is provided:
 		Use:   "keys [addresses] ...",
 		Short: "Query a batch of encryption key by addresses",
+		Args:  cobra.MinimumNArgs(1),
 		RunE: func(cmd *cobra.Command, args []string) (err error) {

This change will ensure that the command is used correctly and provide a helpful error message if no addresses are provided.

x/e2ee/client/cli/encrypt_to_validators.go (2)

19-23: LGTM: Command definition is clear and concise.

The function signature and command definition are well-structured. The command requires exactly one argument, which is good for user clarity.

Consider adding a Long description to provide more detailed information about the command's functionality and usage. This can be helpful for users when they run --help on the command.

 cmd := &cobra.Command{
 	Use:   "encrypt-to-validators [input-file]",
 	Short: "Encrypt input file to one or multiple recipients",
+	Long:  `Encrypt the input file to be sent to one or multiple validators. The command retrieves the list of bonded validators, their encryption keys, and performs the encryption. If an output file is not specified, the result is written to stdout.`,
 	Args:  cobra.ExactArgs(1),
 	RunE: func(cmd *cobra.Command, args []string) error {

35-78: LGTM with suggestions: Validator list and encryption key retrieval logic is sound.

The process of retrieving the validator list and querying encryption keys is logically correct. However, there are some areas where error handling and reporting can be improved:

  1. Consider aggregating errors instead of just logging them to stderr. This would allow the caller to handle the errors more effectively.
  2. The function continues execution even if some validators are missing encryption keys or have invalid keys. This might lead to unexpected behavior. Consider adding a flag to control whether to continue or abort in such cases.

Here's a suggested improvement for error handling:

import "github.com/pkg/errors"

// ... (existing code)

var missingKeys, invalidKeys []string
for i, key := range rsp.Keys {
	if len(key) == 0 {
		missingKeys = append(missingKeys, recs[i])
		continue
	}

	recipient, err := age.ParseX25519Recipient(key)
	if err != nil {
		invalidKeys = append(invalidKeys, recs[i])
		continue
	}
	recipients[i] = recipient
}

if len(missingKeys) > 0 || len(invalidKeys) > 0 {
	return errors.Errorf("Encryption failed: missing keys for %v, invalid keys for %v", missingKeys, invalidKeys)
}

// ... (continue with encryption)

This approach collects all the errors and reports them together, providing a more comprehensive error message.

proto/cronos/query.proto (3)

39-42: LGTM! Consider adding a comment for the BlockList RPC method.

The new BlockList RPC method is well-defined and consistent with the existing structure. It correctly uses the new request and response types and defines an appropriate HTTP GET endpoint.

Consider adding a brief comment describing the purpose of the BlockList method, similar to other RPC methods in this service. For example:

// BlockList retrieves the current block list.
rpc BlockList(QueryBlockListRequest) returns (QueryBlockListResponse) {
  option (google.api.http).get = "/cronos/v1/blocklist";
}

113-114: LGTM! Consider future extensibility for QueryBlockListRequest.

The empty QueryBlockListRequest message is valid if no parameters are currently needed for the block list query.

For future extensibility, consider adding a comment indicating that fields may be added later if needed. For example:

// QueryBlockListRequest is the request type for the Query/BlockList RPC method.
// Currently empty, but may be extended in the future if additional parameters are needed.
message QueryBlockListRequest { }

116-119: Improve clarity and documentation for QueryBlockListResponse.

The QueryBlockListResponse message is structured to return the block list data as a bytes field. While this allows for flexibility, there are some areas for improvement:

  1. Consider renaming the 'blob' field to something more descriptive, e.g., 'block_list_data'.
  2. Add a comment explaining the structure or format of the data contained in this field.

Here's a suggested improvement:

// QueryBlockListResponse is the response type for the Query/BlockList RPC method.
message QueryBlockListResponse {
  // block_list_data contains the serialized block list information.
  // The exact format and structure of this data should be documented here.
  bytes block_list_data = 1;
}
x/cronos/keeper/msg_server.go (1)

116-124: Approve with suggestions for improvement

The StoreBlockList method implementation looks good overall, but there are a few areas where it could be improved:

  1. Consider adding validation for msg.Blob to ensure it meets any required format or size constraints before storing it.

  2. It's recommended to emit an event after successfully storing the block list. This can help with tracking and auditing changes to the block list.

  3. The KVStore operation on line 122 doesn't handle potential errors. Consider wrapping this operation in a try-catch block or checking for any returned errors.

Here's a suggested improvement:

func (k msgServer) StoreBlockList(goCtx context.Context, msg *types.MsgStoreBlockList) (*types.MsgStoreBlockListResponse, error) {
	ctx := sdk.UnwrapSDKContext(goCtx)
	admin := k.Keeper.GetParams(ctx).CronosAdmin
	if admin != msg.From {
		return nil, errors.Wrap(sdkerrors.ErrUnauthorized, "msg sender is not authorized")
	}
	
	// Add validation for msg.Blob
	if err := validateBlockList(msg.Blob); err != nil {
		return nil, err
	}
	
	// Store the block list
	store := ctx.KVStore(k.storeKey)
	store.Set(types.KeyPrefixBlockList, msg.Blob)
	
	// Emit an event
	ctx.EventManager().EmitEvent(
		sdk.NewEvent(
			types.EventTypeStoreBlockList,
			sdk.NewAttribute(sdk.AttributeKeyModule, types.ModuleName),
			sdk.NewAttribute(types.AttributeKeyUpdater, msg.From),
		),
	)
	
	return &types.MsgStoreBlockListResponse{}, nil
}

func validateBlockList(blob []byte) error {
	// Implement validation logic here
	return nil
}
proto/cronos/tx.proto (2)

116-121: LGTM: New message type defined correctly. Consider adding comments.

The MsgStoreBlockList message is well-structured and consistent with other messages in the file. The from field is correctly marked as the signer, and the blob field is appropriate for storing block list data.

Consider adding comments to explain the purpose of each field, especially the blob field, to improve code readability and maintainability. For example:

message MsgStoreBlockList {
  option (cosmos.msg.v1.signer) = "from";
  // from represents the address of the sender
  string from = 1;
  // blob contains the serialized block list data
  bytes blob = 2;
}

123-125: LGTM: Response message defined. Consider adding a status field.

The MsgStoreBlockListResponse message is defined correctly and follows the pattern of other response messages in the file.

Consider adding a status field to provide more information about the operation's result. This could be helpful for error handling and debugging. For example:

message MsgStoreBlockListResponse {
  // status indicates whether the operation was successful
  bool success = 1;
  // optional message providing additional details about the operation result
  string message = 2;
}
x/e2ee/module.go (2)

86-89: LGTM! Consider adding a comment for better documentation.

The GetTxCmd method is correctly implemented and follows the standard pattern for Cosmos SDK modules. It properly delegates to the cli package for retrieving transaction commands.

Consider adding a brief comment explaining the purpose of this method, for example:

// GetTxCmd returns the root tx command for the e2ee module.
func (a AppModuleBasic) GetTxCmd() *cobra.Command {
	return cli.GetTxCmd()
}

91-94: LGTM! Consider adding a comment for better documentation.

The GetQueryCmd method is correctly implemented and follows the standard pattern for Cosmos SDK modules. It properly delegates to the cli package for retrieving query commands and passes the appropriate StoreKey.

Consider adding a brief comment explaining the purpose of this method, for example:

// GetQueryCmd returns the root query command for the e2ee module.
func (AppModuleBasic) GetQueryCmd() *cobra.Command {
	return cli.GetQueryCmd(types.StoreKey)
}
x/cronos/client/cli/tx.go (1)

323-358: Overall implementation looks good, with some suggestions for improvement

The CmdStoreBlockList function is well-structured and correctly implements the functionality to store an encrypted block list. Here are some observations and suggestions:

  1. The command definition, file handling, message creation, and transaction broadcast are all implemented correctly.

  2. Consider adding a file size check to prevent potential memory issues with very large files. For example:

const maxFileSize = 10 * 1024 * 1024 // 10 MB

fileInfo, err := fp.Stat()
if err != nil {
    return fmt.Errorf("failed to get file info: %w", err)
}
if fileInfo.Size() > maxFileSize {
    return fmt.Errorf("file size exceeds maximum allowed size of %d bytes", maxFileSize)
}
  1. Error messages could be more specific to help with debugging. For example:
fp, err := os.Open(args[0])
if err != nil {
    return fmt.Errorf("failed to open file %s: %w", args[0], err)
}
  1. It's advisable to check file permissions before reading to ensure the file is not accessible by unauthorized users:
fileInfo, err := fp.Stat()
if err != nil {
    return fmt.Errorf("failed to get file info: %w", err)
}
if fileInfo.Mode().Perm()&0077 != 0 {
    return fmt.Errorf("file has unsafe permissions: %v", fileInfo.Mode().Perm())
}
x/cronos/types/messages.go (5)

4-6: Group standard library imports together

To improve readability, consider grouping the standard library imports without extra blank lines.

Apply this diff to adjust the import grouping:

 import (
     "bytes"
-
-    stderrors "errors"
+    stderrors "errors"

     "cosmossdk.io/errors"
     "filippo.io/age"
     sdk "github.com/cosmos/cosmos-sdk/types"

329-334: Add a comment for the exported function NewMsgStoreBlockList

According to Go conventions, exported functions should have a comment explaining their purpose.

Add a comment for the function:

+// NewMsgStoreBlockList creates a new MsgStoreBlockList instance.
 func NewMsgStoreBlockList(from string, blob []byte) *MsgStoreBlockList {
     return &MsgStoreBlockList{
         From: from,
         Blob: blob,
     }
 }

336-339: Unexport unused error and struct

Since errDummyIdentity and dummyIdentity are only used within this file, they can be unexported to limit their scope.

Apply this diff to unexport these identifiers:

-var errDummyIdentity = stderrors.New("dummy")
+var errDummyIdentity = errors.New("dummy")

-type dummyIdentity struct{}
+type dummyIdentity struct{}

Note: Consider using the standard library errors package instead of aliasing stderrors.


373-375: Correct the method receiver to a pointer

For consistency and to avoid unintended copies, consider changing the receiver of the Route method to a pointer receiver.

Apply this diff:

-func (msg MsgStoreBlockList) Route() string {
+func (msg *MsgStoreBlockList) Route() string {
     return RouterKey
 }

378-380: Correct the method receiver to a pointer

Similarly, update the receiver of the Type method to a pointer receiver for consistency.

Apply this diff:

-func (msg MsgStoreBlockList) Type() string {
+func (msg *MsgStoreBlockList) Type() string {
     return TypeMsgStoreBlockList
 }
integration_tests/cosmoscli.py (3)

Line range hint 1912-1918: Avoid Using 'input' as a Parameter Name

The parameter name input shadows the built-in function input(), which can lead to confusion and unexpected behavior. Consider renaming this parameter to something more descriptive, like input_data.

Apply this diff:

-def e2ee_encrypt(self, input, *recipients, **kwargs):
+def e2ee_encrypt(self, input_data, *recipients, **kwargs):
     return (
         self.raw(
             "e2ee",
             "encrypt",
-            input,
+            input_data,
             *itertools.chain.from_iterable(("-r", r) for r in recipients),
             home=self.data_dir,
             **kwargs,
         )
     ).strip().decode()

Line range hint 1926-1931: Avoid Using 'input' as a Parameter Name

The parameter name input shadows the built-in function input(), which can lead to confusion and potential issues. It's recommended to rename this parameter to something like encrypted_data or input_data.

Apply this diff:

-def e2ee_decrypt(self, input, identity="e2ee-identity", **kwargs):
+def e2ee_decrypt(self, encrypted_data, identity="e2ee-identity", **kwargs):
     return (
         self.raw(
             "e2ee",
             "decrypt",
-            input,
+            encrypted_data,
             home=self.data_dir,
             identity=identity,
             **kwargs,
         )
     ).strip().decode()

1940-1951: Avoid Using 'input' as a Parameter Name

The parameter name input shadows the built-in function input(). To improve code readability and prevent potential conflicts, consider renaming this parameter to something like input_data or plaintext.

Apply this diff:

-def e2ee_encrypt_to_validators(self, input, **kwargs):
+def e2ee_encrypt_to_validators(self, input_data, **kwargs):
     return (
         self.raw(
             "e2ee",
             "encrypt-to-validators",
-            input,
+            input_data,
             home=self.data_dir,
             **kwargs,
         )
     ).strip().decode()
📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Files that changed from the base of the PR and between e1cf56b and 1bdcd03.

⛔ Files ignored due to path filters (3)
  • x/cronos/types/query.pb.go is excluded by !**/*.pb.go
  • x/cronos/types/query.pb.gw.go is excluded by !**/*.pb.gw.go
  • x/cronos/types/tx.pb.go is excluded by !**/*.pb.go
📒 Files selected for processing (22)
  • CHANGELOG.md (1 hunks)
  • client/docs/swagger-ui/swagger.yaml (2 hunks)
  • go.mod (0 hunks)
  • gomod2nix.toml (0 hunks)
  • integration_tests/cosmoscli.py (7 hunks)
  • integration_tests/test_e2ee.py (1 hunks)
  • proto/cronos/query.proto (2 hunks)
  • proto/cronos/tx.proto (2 hunks)
  • x/cronos/client/cli/tx.go (3 hunks)
  • x/cronos/keeper/grpc_query.go (1 hunks)
  • x/cronos/keeper/keeper.go (1 hunks)
  • x/cronos/keeper/msg_server.go (1 hunks)
  • x/cronos/types/keys.go (2 hunks)
  • x/cronos/types/messages.go (4 hunks)
  • x/e2ee/client/cli/cmd.go (1 hunks)
  • x/e2ee/client/cli/encrypt_to_validators.go (1 hunks)
  • x/e2ee/client/cli/pubkey.go (1 hunks)
  • x/e2ee/client/cli/query.go (1 hunks)
  • x/e2ee/client/cli/tx.go (1 hunks)
  • x/e2ee/keyring/keyring_test.go (1 hunks)
  • x/e2ee/module.go (2 hunks)
  • x/e2ee/types/msg.go (2 hunks)
💤 Files not reviewed due to no reviewable changes (2)
  • go.mod
  • gomod2nix.toml
✅ Files skipped from review due to trivial changes (1)
  • x/e2ee/keyring/keyring_test.go
🔇 Additional comments (36)
client/docs/swagger-ui/swagger.yaml (1)

Line range hint 7-44901: Summary: Changes align with PR objectives.

The additions to the Swagger specification, including the new /cronos/v1/blocklist endpoint and the cronos.QueryBlockListResponse definition, are consistent with the PR's objective of updating the e2ee module. These changes enhance the API's capabilities for managing blocklists, which is likely part of the end-to-end encryption improvements.

x/e2ee/types/msg.go (2)

10-10: LGTM: Proper interface implementation check.

The variable declaration ensures that MsgRegisterEncryptionKey implements the sdk.Msg interface at compile-time. This is a good practice to catch potential interface implementation issues early.


25-31: ⚠️ Potential issue

Consider revising error handling in GetSigners method.

While the method correctly implements the sdk.Msg interface requirement, there are potential issues with the current implementation:

  1. Using panic for error handling is generally discouraged in Go, as it can lead to unexpected program termination.
  2. The method assumes that m.Address is always valid, which might not be the case if ValidateBasic hasn't been called or if the struct was created incorrectly.

Consider the following improvements:

  1. Return an error instead of panicking:
func (m *MsgRegisterEncryptionKey) GetSigners() ([]sdk.AccAddress, error) {
    addr, err := sdk.AccAddressFromBech32(m.Address)
    if err != nil {
        return nil, fmt.Errorf("invalid address: %w", err)
    }
    return []sdk.AccAddress{addr}, nil
}
  1. If changing the interface is not possible, consider adding a precondition check:
func (m *MsgRegisterEncryptionKey) GetSigners() []sdk.AccAddress {
    if err := m.ValidateBasic(); err != nil {
        panic(fmt.Sprintf("GetSigners called on invalid message: %v", err))
    }
    addr, err := sdk.AccAddressFromBech32(m.Address)
    if err != nil {
        panic(fmt.Sprintf("failed to parse valid address: %v", err))
    }
    return []sdk.AccAddress{addr}
}

This approach ensures that ValidateBasic is called before GetSigners, maintaining the current interface while adding more context to potential panics.

To ensure this change doesn't break existing usage, let's check how GetSigners is typically used in the codebase:

x/e2ee/client/cli/pubkey.go (3)

1-12: LGTM: Package declaration and imports are well-organized.

The package name is appropriate, and the imports are relevant and logically organized.


49-53: LGTM: Command flags and return statement are correctly implemented.

The keyring name flag is properly added with a default value, and the use of constants for the flag name and default value is a good practice. The command is correctly returned at the end of the function.


1-53: Overall assessment: Well-implemented CLI command with minor suggestions for improvement.

This new file successfully implements a CLI command for displaying the public key of an identity stored in a keyring, which aligns with the PR objective of updating the e2ee module. The implementation is generally sound, following good practices and using appropriate libraries.

A few minor suggestions have been made to improve flexibility and user-friendliness:

  1. Making the app name configurable
  2. Allowing for different input sources for the keyring
  3. Adding more user feedback

These suggestions, while not critical, would enhance the command's usability and maintainability.

Regarding the PR objectives:

  • This file contributes to updating the e2ee module as intended.
  • The implementation appears to be compliant with the project's standards and practices.
  • As this is a new file, it inherently doesn't introduce breaking changes to existing functionality.

To ensure full compliance with the PR objectives, please run the following verification script:

This script will help verify proper integration, test coverage, absence of temporary comments, and documentation updates.

x/e2ee/client/cli/tx.go (3)

3-11: LGTM: Import statements are appropriate and well-organized.

The import statements include all necessary packages for implementing the E2EE module's CLI commands, utilizing the Cosmos SDK, Cronos, and standard libraries effectively.


14-24: LGTM: GetTxCmd function is well-implemented.

The GetTxCmd function correctly sets up the root command for E2EE module transactions. It follows Cosmos SDK best practices by:

  1. Using appropriate command properties.
  2. Implementing client.ValidateCmd for validation.
  3. Adding the CmdRegisterAccount as a subcommand.

This structure allows for easy extension with additional subcommands in the future.


1-50: Overall, the implementation of CLI commands for the E2EE module is solid and follows best practices.

This new file, tx.go, successfully implements the necessary CLI commands for the E2EE module, aligning with the PR objective of updating the e2ee module. The code follows Cosmos SDK and Cobra library best practices, providing a clean and extensible structure for transaction commands.

Key points:

  1. The GetTxCmd function sets up the root command correctly.
  2. The CmdRegisterAccount function implements the encryption key registration command with proper error handling and argument validation.
  3. The code is well-structured and easy to understand.

The only suggestion is to enhance the command description for better user understanding, but this is a minor improvement to an otherwise solid implementation.

x/cronos/types/keys.go (1)

Line range hint 30-41: Consider documenting the block list feature and its implications.

The addition of block list related constants and variables suggests the introduction of a new feature. To ensure comprehensive implementation and maintainability:

  1. Update relevant documentation to explain the purpose and usage of the block list feature.
  2. Verify that any necessary methods or functions for managing the block list are implemented in the appropriate files.
  3. Consider adding tests for the block list functionality if not already present.

To verify the implementation of block list functionality, you can run the following script:

x/e2ee/client/cli/query.go (3)

3-10: LGTM: Import statements are appropriate and concise.

The import statements are well-organized and include all necessary packages for the implemented functionality.


12-24: LGTM: GetQueryCmd function is well-structured and follows Cosmos SDK patterns.

The function correctly sets up the root query command for the e2ee module and adds the necessary subcommands. It follows the standard Cosmos SDK patterns for CLI command creation.


1-78: Overall, the implementation is well-structured and follows Cosmos SDK best practices.

The file successfully implements CLI commands for querying encryption keys in the e2ee module. The code is clean, follows standard patterns, and handles errors appropriately. The suggested improvements (adding comments and argument validation) are minor and would enhance the code's readability and robustness.

To ensure consistency with other CLI commands in the project, let's verify the structure of similar query commands:

This will help us confirm if the suggested improvements align with the project's conventions.

✅ Verification successful

Verification Successful

The implementation in x/e2ee/client/cli/query.go aligns with other modules' structures and consistently uses cobra.ExactArgs. The CLI commands follow the project's best practices and standards, ensuring reliability and maintainability.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Check the structure of other query command implementations

# Test: Look for other query command implementations
rg --type go -g '*/cli/*.go' -A 10 'func GetQueryCmd\('

# Test: Check for the use of cobra.ExactArgs or cobra.MinimumNArgs in other CLI commands
rg --type go -g '*/cli/*.go' 'cobra\.(ExactArgs|MinimumNArgs)'

Length of output: 420


Script:

#!/bin/bash
# Description: Check the structure of other query command implementations with updated search patterns

# Test: Look for other GetQueryCmd implementations without restrictive globs
rg --type go 'func GetQueryCmd\('

# Test: Check for the use of cobra.ExactArgs or cobra.MinimumNArgs across all CLI commands
rg --type go 'cobra\.(ExactArgs|MinimumNArgs)'

Length of output: 1631

x/e2ee/client/cli/encrypt_to_validators.go (4)

1-17: LGTM: Package declaration and imports are appropriate.

The package declaration and imports are well-organized and relevant to the functionality being implemented. No unused imports are present.


24-33: LGTM: Client context and flag retrieval are handled correctly.

The client context is retrieved using the standard Cosmos SDK method, and the output file flag is properly obtained. Error handling is appropriate for both operations.


1-110: Overall assessment: Well-implemented CLI command with minor improvement suggestions.

The EncryptToValidatorsCommand function successfully implements a CLI command for encrypting data to validators, following Cosmos SDK patterns and best practices. The code is generally well-structured and achieves its intended purpose.

Key strengths:

  1. Proper use of Cosmos SDK client context and query clients.
  2. Flexible input/output handling.
  3. Clear command definition and argument validation.

Suggested improvements:

  1. Enhanced error handling and reporting, especially for missing or invalid encryption keys.
  2. Additional documentation for the encrypt function and a more detailed command description.

These improvements will further enhance the robustness and maintainability of the code.


79-110: LGTM with suggestion: Input/output handling is flexible and well-implemented.

The function provides flexible input/output options, supporting both file and standard input/output. Error handling for file operations is appropriate.

Consider adding a comment explaining the encrypt function's expected behavior and any assumptions about its implementation. This would improve code readability and maintainability.

+	// encrypt performs the actual encryption using the provided recipients and writes the result to the output
+	// It's expected to handle the encryption process and any related errors
 	return encrypt(recipients, input, output)

To ensure the encrypt function is properly implemented, let's verify its existence and basic structure:

✅ Verification successful

Verification Complete: encrypt function is properly defined and implemented.

The encrypt function has been successfully located in x/e2ee/client/cli/encrypt.go and appears to handle encryption and error management correctly.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the existence and basic structure of the encrypt function

# Test: Search for the encrypt function definition
rg --type go -A 5 'func encrypt\('

Length of output: 391

proto/cronos/tx.proto (2)

37-39: LGTM: New RPC method added correctly.

The new StoreBlockList RPC method has been added to the Msg service with the correct syntax and naming convention. This addition aligns with the PR objective of updating the e2ee module.


Line range hint 1-125: Overall, the changes look good and align with the PR objectives.

The additions to the proto/cronos/tx.proto file are well-implemented and consistent with existing patterns. The new RPC method and message types for storing block lists have been correctly defined.

Minor suggestions for improvement include:

  1. Adding comments to the MsgStoreBlockList message fields for better clarity.
  2. Considering the addition of a status field to the MsgStoreBlockListResponse message for more informative responses.

These suggestions are not critical and can be addressed in future updates if desired.

x/e2ee/module.go (1)

86-94: Overall, the changes enhance the e2ee module's functionality.

The addition of GetTxCmd and GetQueryCmd methods completes the implementation of the AppModuleBasic interface, aligning with Cosmos SDK module standards. These changes contribute to updating the e2ee module as per the PR objectives.

To ensure the completeness of the implementation, please verify the cli package:

This will help confirm that the cli package correctly implements the GetTxCmd and GetQueryCmd functions that are being called in the module.go file.

✅ Verification successful

Verification Successful: cli package correctly implements GetTxCmd and GetQueryCmd.

The tx.go and query.go files in x/e2ee/client/cli define the required functions as expected, ensuring complete and correct implementation of the AppModuleBasic interface.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the implementation of GetTxCmd and GetQueryCmd in the cli package

# Test: Check for the existence and basic structure of GetTxCmd and GetQueryCmd
rg --type go -e 'func GetTxCmd\(\).*cobra\.Command' -e 'func GetQueryCmd\(.*\).*cobra\.Command' x/e2ee/client/cli

Length of output: 252

x/cronos/keeper/keeper.go (3)

359-361: Verify related changes for the blocklist feature

While the GetBlockList method is well-implemented, it introduces a new concept (blocklist) to this keeper. To ensure consistency and completeness:

  1. Verify that types.KeyPrefixBlockList is properly defined in the types package.
  2. Check for any other changes related to the blocklist feature in this module, such as methods to add or remove entries from the blocklist.

Let's verify the definition of KeyPrefixBlockList and look for other blocklist-related changes:

#!/bin/bash
# Check for the definition of KeyPrefixBlockList
rg --type go "var KeyPrefixBlockList"

# Look for other blocklist-related functions or methods
rg --type go "func.*(BlockList|Blocklist)"

359-361: Summary: New blocklist feature introduced

The addition of the GetBlockList method introduces a new blocklist feature to the keeper. While the implementation is sound, it raises questions about the scope of this PR:

  1. The PR objectives mention synchronizing the e2ee module, but this blocklist feature seems unrelated. Could you clarify the connection between these changes and the stated objectives?
  2. Are there any other changes related to this blocklist feature in other parts of the codebase?

These clarifications would help ensure that the PR's scope is well-defined and that all related changes are properly reviewed.

To get a better overview of the changes in this PR, let's check for any other files that have been modified:

#!/bin/bash
# List all modified files in this PR
git diff --name-only origin/master

359-361: LGTM. Consider adding a comment to explain the blocklist.

The implementation of GetBlockList looks correct and follows the pattern of other getter methods in this file. It efficiently retrieves the blocklist data from the key-value store.

Consider adding a comment above the method to explain the purpose and usage of the blocklist. This would improve code documentation and make it easier for other developers to understand the feature.

+// GetBlockList retrieves the current blocklist from the key-value store.
+// The blocklist is used for [explain purpose here, e.g., "preventing certain addresses from performing specific actions"].
 func (k Keeper) GetBlockList(ctx sdk.Context) []byte {
     return ctx.KVStore(k.storeKey).Get(types.KeyPrefixBlockList)
 }

Could you clarify how this blocklist feature relates to the e2ee module synchronization mentioned in the PR objectives? It would be helpful to understand the context of this addition.

x/cronos/client/cli/tx.go (2)

49-49: LGTM: New command correctly integrated

The CmdStoreBlockList() command has been properly added to the command set in the GetTxCmd function. This integration follows the existing pattern and should allow users to access the new functionality through the CLI.


Line range hint 1-359: Summary: New block list storage command successfully implemented

The changes to x/cronos/client/cli/tx.go successfully introduce a new command for storing an encrypted block list, which aligns with the PR objectives of updating the e2ee module. The implementation is well-structured and correctly integrated into the existing command set.

While the core functionality is sound, consider implementing the suggested improvements for enhanced robustness and security:

  1. Add a file size check to prevent potential memory issues with very large files.
  2. Provide more specific error messages to aid in debugging.
  3. Implement a file permissions check to ensure the input file is not accessible by unauthorized users.

These enhancements will further improve the reliability and security of the new functionality.

CHANGELOG.md (8)

10-10: LGTM: Latest version entry is properly formatted and dated.

The latest version entry (v1.1.0-rc0) is correctly formatted and includes the release date (October 15, 2022).


Line range hint 12-15: LGTM: v1.1.0-rc0 entry is clear and informative.

The v1.1.0-rc0 entry properly documents two bug fixes with clear descriptions and links to the corresponding pull requests.


Line range hint 19-22: LGTM: v1.0.0 entry is concise and clear.

The v1.0.0 entry correctly documents an improvement (updating cosmos-sdk) and specifies that it's non-breaking for cronos.


Line range hint 26-29: LGTM: v1.0.0-rc4 entry is clear and concise.

The v1.0.0-rc4 entry properly documents a single bug fix related to the london hardfork number in testnet3 parameters.


Line range hint 33-36: LGTM: v1.0.0-rc3 entry correctly identifies a state machine breaking change.

The v1.0.0-rc3 entry properly documents a state machine breaking change related to upgrading ibc-go and related dependencies. The inclusion of the pull request link is helpful.


Line range hint 40-47: LGTM: v1.0.0-rc2 entry is comprehensive and well-structured.

The v1.0.0-rc2 entry effectively documents four bug fixes, each with a clear description and a link to the corresponding pull request. This provides a good overview of the issues addressed in this release candidate.


Line range hint 51-54: LGTM: v1.0.0-rc1 entry is clear and informative.

The v1.0.0-rc1 entry properly documents a single bug fix related to reverting breaking changes on gas used in Ethermint. The description is concise yet informative.


Line range hint 1-1186: LGTM: CHANGELOG.md is well-structured and informative.

The CHANGELOG.md file is well-maintained and provides a comprehensive history of the project's development. It follows good practices by:

  1. Clearly separating versions with headings and release dates.
  2. Categorizing changes into "State Machine Breaking", "Bug Fixes", and "Improvements".
  3. Including links to relevant pull requests for most entries.
  4. Providing concise yet informative descriptions of changes.

This structure makes it easy for users and developers to understand the evolution of the project and the nature of changes in each release.

integration_tests/test_e2ee.py (1)

128-130: Verify the account query response structure

Ensure that the structure of the response from cli.query_account(user) matches the keys being accessed. The current code accesses ["account"]["value"]["sequence"], but in some SDK versions, the structure may differ.

Run the following script to verify the response structure:

This command will display the account structure in JSON format. Verify that the keys account.value.sequence exist, or adjust the code to match the actual structure.

integration_tests/cosmoscli.py (2)

Line range hint 368-394: Addition of event_query_tx Parameter in transfer Method

The addition of the event_query_tx parameter allows control over querying transaction events after a successful transfer. Ensure that this change aligns with the intended functionality and that any dependent code accounts for this new parameter.


1723-1740: New Method store_blocklist Added

The store_blocklist method correctly adds functionality to store a blocklist with default gas price and gas settings. The implementation appears correct.

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@mmsqe
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mmsqe commented Sep 26, 2024

might add back identity part as well

@yihuang
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yihuang commented Sep 26, 2024

might add back identity part as well

Yes, I have sth in local, haven't finished

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Actionable comments posted: 4

🧹 Outside diff range and nitpick comments (3)
app/proposal.go (3)

32-38: Add unit tests for NewExtTxSelector function

The NewExtTxSelector constructor initializes crucial components of the ExtTxSelector. Adding unit tests for this function will ensure that it behaves correctly with different inputs and correctly sets up the extended transaction selector.

Do you want me to help generate unit tests for the NewExtTxSelector function or open a GitHub issue to track this task?

🧰 Tools
🪛 GitHub Check: codecov/patch

[warning] 32-36: app/proposal.go#L32-L36
Added lines #L32 - L36 were not covered by tests


125-145: Add unit tests for ValidateTransaction method

The ValidateTransaction method is crucial for enforcing the blocklist by rejecting transactions from blocked signers. Currently, this method is not covered by tests. Adding unit tests will help ensure that the blocklist enforcement behaves as expected under various scenarios.

Do you want me to help generate unit tests for the ValidateTransaction method or open a GitHub issue to track this task?

🧰 Tools
🪛 GitHub Check: codecov/patch

[warning] 125-128: app/proposal.go#L125-L128
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[warning] 131-133: app/proposal.go#L131-L133
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[warning] 135-138: app/proposal.go#L135-L138
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147-160: Add unit tests for ProcessProposalHandler function

The ProcessProposalHandler function processes transaction proposals and decides whether to accept or reject them based on custom validation rules. Without tests, there's a risk of unintended behavior slipping into production. Unit tests will help verify that the proposal processing logic correctly accepts valid transactions and rejects those that fail validation.

Do you want me to help generate unit tests for the ProcessProposalHandler function or open a GitHub issue to track this task?

🧰 Tools
🪛 GitHub Check: codecov/patch

[warning] 147-152: app/proposal.go#L147-L152
Added lines #L147 - L152 were not covered by tests


[warning] 155-156: app/proposal.go#L155-L156
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[warning] 160-160: app/proposal.go#L160
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📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Files that changed from the base of the PR and between 1bdcd03 and 5331cb0.

📒 Files selected for processing (2)
  • app/app.go (3 hunks)
  • app/proposal.go (1 hunks)
🧰 Additional context used
🪛 GitHub Check: codecov/patch
app/proposal.go

[warning] 32-36: app/proposal.go#L32-L36
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[warning] 40-45: app/proposal.go#L40-L45
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[warning] 169-170: app/proposal.go#L169-L170
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🔇 Additional comments (4)
app/proposal.go (1)

53-55: Verify the impact of passing nil memTx to the parent selector

Passing nil for memTx to ts.TxSelector.SelectTxForProposal may have unintended side effects if the parent selector is not designed to handle a nil transaction. Please ensure that this behavior is acceptable and does not lead to any errors or panics.

Run the following script to check if all implementations of SelectTxForProposal can handle nil memTx without issues:

✅ Verification successful

Verified: Passing nil memTx is safe

Passing nil for memTx to ts.TxSelector.SelectTxForProposal is handled appropriately in the existing implementation, ensuring no errors or unintended side effects.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify that passing nil `memTx` to `SelectTxForProposal` is safe.

# Expected: All implementations should gracefully handle nil `memTx`.
rg --type go --no-heading --line-number 'func.*SelectTxForProposal.*' -A 15 | grep -E 'func|memTx'

Length of output: 543

🧰 Tools
🪛 GitHub Check: codecov/patch

[warning] 55-55: app/proposal.go#L55
Added line #L55 was not covered by tests

app/app.go (3)

18-19: Imported 'filippo.io/age' package for E2EE functionality

The age package is correctly imported to enable end-to-end encryption features.


164-164: Added 'e2eekeyring' import for E2EE keyring management

The e2eekeyring package is imported correctly to manage E2EE keyrings.


380-381: Handle missing E2EE identity appropriately

When the E2EE identity is not found, an error is logged but the application continues. Ensure that this scenario is acceptable and that subsequent code can handle a nil identity without issues.

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Actionable comments posted: 3

🧹 Outside diff range and nitpick comments (10)
integration_tests/test_e2ee.py (6)

12-19: LGTM! Consider adding type annotation.

The test_register function looks good. It correctly tests both the successful key generation and the error case for malformed key registration.

Consider adding type annotation to the cronos parameter for consistency with other functions:

-def test_register(cronos):
+def test_register(cronos: Cronos):

35-66: LGTM! Consider adding type annotation.

The test_encrypt_decrypt function looks good. It effectively tests the encryption and decryption process between validators, including batch querying of E2EE keys.

Consider adding type annotation to the cronos parameter for consistency:

-def test_encrypt_decrypt(cronos):
+def test_encrypt_decrypt(cronos: Cronos):

84-112: LGTM! Consider adding type annotation.

The test_block_list function is well-implemented and thoroughly tests the blocklist functionality for normal transactions. It correctly verifies the behavior of blocked transactions in the mempool and blocks.

Consider adding type annotation to the cronos parameter for consistency:

-def test_block_list(cronos):
+def test_block_list(cronos: Cronos):

115-143: LGTM! Consider adding type annotation.

The test_block_list_evm function is well-implemented and thoroughly tests the blocklist functionality for EVM transactions. It correctly uses Web3 for EVM interactions and verifies the behavior of blocked transactions in the mempool and blocks.

Consider adding type annotation to the cronos parameter for consistency:

-def test_block_list_evm(cronos):
+def test_block_list_evm(cronos: Cronos):

146-152: LGTM! Consider adding type annotation.

The test_invalid_block_list function is well-implemented and correctly tests the error case for storing an invalid blocklist. It appropriately uses pytest.raises to check for the expected exception.

Consider adding type annotation to the cronos parameter for consistency:

-def test_invalid_block_list(cronos):
+def test_invalid_block_list(cronos: Cronos):

1-152: Overall, excellent improvements to E2EE and blocklist testing

The changes in this file significantly enhance the test coverage for E2EE and blocklist functionality. The new helper functions (gen_validator_identity, encrypt_to_validators, get_nonce) improve code reusability and readability. The tests now cover both normal and EVM transactions, providing a more comprehensive validation of the blocklist feature.

For consistency, consider adding type annotations to all test functions that take a cronos parameter. This will improve code readability and maintainability.

app/app.go (4)

350-351: New block proposal handler added to App struct

A blockProposalHandler field of type *ProposalHandler has been added to the App struct. This addition suggests new functionality for handling block proposals has been implemented.

Ensure that the ProposalHandler is properly initialized and used throughout the application. Consider adding documentation or comments explaining the purpose and functionality of this new handler.


396-425: Review the new mempool and block proposal handling implementation

The changes introduce a new mempool configuration and block proposal handling mechanism. These modifications affect core functionality of the blockchain.

Ensure that these changes have been thoroughly tested, especially:

  1. The new mempool priority mechanism
  2. The custom transaction validation logic in blockProposalHandler.ValidateTransaction
  3. The new prepare and process proposal handlers

Consider adding unit and integration tests specifically for these new components to ensure they work as expected under various scenarios.


1147-1152: Consider the performance impact of refreshing the blocklist in EndBlocker

Adding app.RefreshBlockList(ctx) to the EndBlocker function ensures the blocklist is updated frequently, which is good for security. However, this operation could potentially impact performance, especially for blocks with many transactions.

  1. Consider the frequency of blocklist updates. If it doesn't need to be updated every block, consider implementing a less frequent update mechanism.
  2. Ensure that the RefreshBlockList function is optimized for performance.
  3. Add monitoring and metrics for the time taken by this operation to track its impact on block processing time.

Line range hint 1-1467: Overall assessment of changes to app/app.go

The modifications to app/app.go introduce significant new functionality, particularly in the areas of end-to-end encryption (E2EE), mempool management, block proposal handling, and blocklist management. While these changes enhance the application's capabilities, they also introduce complexity that requires careful consideration:

  1. E2EE Implementation: Ensure that the E2EE functionality is thoroughly tested and that error handling is robust to prevent potential security vulnerabilities.

  2. Mempool and Block Proposal Changes: The new mempool priority system and custom block proposal handling need comprehensive testing to ensure they perform correctly under various network conditions.

  3. Blocklist Management: The frequent updating of the blocklist in the EndBlocker could have performance implications. Consider optimizing this process and monitoring its impact on block processing times.

  4. Error Handling: Throughout the new code, ensure that error handling is consistent and provides enough information for debugging without exposing sensitive data.

  5. Testing: Implement extensive unit and integration tests for all new components, particularly focusing on edge cases and potential attack vectors.

  6. Documentation: Update all relevant documentation to reflect these changes, especially regarding the new flags and configuration options introduced.

  7. Performance Monitoring: Implement detailed performance monitoring for the new components to quickly identify any issues in production.

Consider conducting a thorough security audit of these changes, particularly the E2EE implementation and the new block proposal handling mechanism. Additionally, plan for a phased rollout with close monitoring to minimize the risk of these significant changes.

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Review profile: CHILL

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📒 Files selected for processing (6)
  • CHANGELOG.md (1 hunks)
  • app/app.go (10 hunks)
  • app/block_address.go (1 hunks)
  • go.mod (0 hunks)
  • gomod2nix.toml (0 hunks)
  • integration_tests/test_e2ee.py (1 hunks)
💤 Files not reviewed due to no reviewable changes (2)
  • go.mod
  • gomod2nix.toml
🚧 Files skipped from review as they are similar to previous changes (1)
  • CHANGELOG.md
🧰 Additional context used
🪛 GitHub Check: codecov/patch
app/block_address.go

[warning] 29-29: app/block_address.go#L29
Added line #L29 was not covered by tests

🔇 Additional comments (4)
app/block_address.go (1)

29-31: ⚠️ Potential issue

Improved address handling for blocked signer check.

The change enhances the accuracy and consistency of the blocked address check by ensuring the signer address is properly formatted as an AccAddress before comparison. This aligns better with Cosmos SDK conventions and potentially prevents issues with address format mismatches.

To ensure this change doesn't inadvertently allow previously blocked addresses, please verify the format of addresses in the blockedMap:

The modified line is not covered by tests according to the code coverage report. Consider adding a test case to verify this specific change:

func TestBlockAddressesDecorator_AnteHandle_BlockedSigner(t *testing.T) {
    // Setup a BlockAddressesDecorator with a known blocked address
    blockedAddr := sdk.AccAddress([]byte("blockedaddr")).String()
    decorator := NewBlockAddressesDecorator(map[string]struct{}{blockedAddr: {}})

    // Create a mock transaction with the blocked signer
    mockTx := // ... create a mock tx with blockedAddr as signer

    ctx := sdk.NewContext(nil, tmproto.Header{}, false, log.NewNopLogger())
    _, err := decorator.AnteHandle(ctx, mockTx, false, func(ctx sdk.Context, tx sdk.Tx, simulate bool) (sdk.Context, error) {
        return ctx, nil
    })

    assert.Error(t, err)
    assert.Contains(t, err.Error(), "signer is blocked")
}

This test will help ensure the blocking functionality works as expected with the new address handling.

✅ Verification successful

Verification Passed: Address Formatting Consistency Confirmed.

The shell script results confirm that all addresses in blockedMap are initialized using sdk.AccAddress from Bech32 strings and are consistently formatted as strings when checked in the AnteHandle method. This ensures that the blocked signer check functions correctly without format mismatches.

However, note that the specific lines of code (lines 29-31) are not currently covered by tests. It's recommended to add test cases to ensure this behavior is consistently validated in the future.

🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Check the format of addresses in blockedMap initialization

# Search for blockedMap initialization
rg --type go 'blockedMap\s*[:=]' -A 10

Length of output: 1101

🧰 Tools
🪛 GitHub Check: codecov/patch

[warning] 29-29: app/block_address.go#L29
Added line #L29 was not covered by tests

integration_tests/test_e2ee.py (3)

69-77: LGTM! Well-implemented helper function.

The encrypt_to_validators function is a well-implemented helper that correctly encrypts content to all validators and stores it as a blocklist. It properly handles JSON serialization and checks the response code for errors.


79-81: LGTM! Useful helper function.

The get_nonce function is a well-implemented helper that correctly retrieves the nonce (sequence number) for a user. It appropriately handles the case where the sequence might not be present in the account information.


21-34: ⚠️ Potential issue

Ensure all validators register E2EE keys

The gen_validator_identity function is a good addition for setting up E2EE keys for validators. However, the current implementation may not register keys for all validators if one already has a key.

Consider modifying the logic to ensure all validators without keys get them registered:

 def gen_validator_identity(cronos: Cronos):
     for i in range(len(cronos.config["validators"])):
         cli = cronos.cosmos_cli(i)
         if cli.query_e2ee_key(cli.address("validator")):
-            return
+            continue
         pubkey = cli.e2ee_keygen()
         assert cli.e2ee_pubkey() == pubkey
         cli.register_e2ee_key(pubkey, _from="validator")
         assert cli.query_e2ee_key(cli.address("validator")) == pubkey

         cronos.supervisorctl("restart", f"cronos_777-1-node{i}")

     wait_for_new_blocks(cronos.cosmos_cli(), 1)

This change ensures that the function continues to process all validators, registering keys for those that don't have them.

Likely invalid or redundant comment.

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Actionable comments posted: 0

🧹 Outside diff range and nitpick comments (1)
integration_tests/configs/broken-cronosd.patch (1)

2-15: Consider clarifying the integration test context

Upon reflection, it's worth noting that this file is part of the integration tests (integration_tests/configs/broken-cronosd.patch). This context is crucial and should be made clearer, perhaps through comments in the code or in the PR description.

The changes introduced, particularly the periodic setting of a key-value pair, might be intentional for testing purposes. However, without clear documentation, it's challenging for reviewers and future maintainers to understand the intent behind these modifications.

Consider adding comments or documentation that explain:

  1. The purpose of this patch file in the context of integration tests.
  2. The specific scenarios or behaviors these changes are designed to test.
  3. Any expected outcomes or potential pitfalls that other developers should be aware of when working with or modifying this test.
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🔇 Additional comments (2)
integration_tests/configs/broken-cronosd.patch (2)

14-15: Good addition of error handling, but consider improvements

The addition of error handling for RefreshBlockList is a good practice. However, there are a few points to consider:

  1. The error is logged but not returned. Depending on the criticality of RefreshBlockList, you might want to consider returning the error to allow higher-level error handling.

  2. It's not immediately clear what RefreshBlockList does or why it's called in EndBlocker. Consider adding a comment explaining its purpose and importance.

To better understand the context of RefreshBlockList, let's search for its definition and other usages:

#!/bin/bash
# Search for the definition and usages of RefreshBlockList
rg --type go 'func.*RefreshBlockList'
rg --type go 'RefreshBlockList\('

This will help us understand if the error handling approach is consistent across the codebase.


5-9: ⚠️ Potential issue

Clarify the purpose of the new conditional block

The newly added code executes every 10 blocks and sets a static key-value pair in the "cronos" KVStore. However, the purpose of this addition is not clear.

  1. What is the intention behind setting "hello" to "world" every 10 blocks?
  2. Is this meant to be test code or a placeholder?
  3. Consider adding a comment to explain the purpose of this periodic action.

Additionally, be aware that this operation could potentially impact performance, especially as the blockchain grows. If this is intended for production, ensure that it doesn't introduce unnecessary overhead.

To check if this is an isolated change or if similar patterns exist elsewhere, run:

@yihuang yihuang added this pull request to the merge queue Sep 27, 2024
Merged via the queue into crypto-org-chain:main with commit 3d3cfed Sep 27, 2024
38 checks passed
@yihuang yihuang deleted the sync-e2ee branch September 27, 2024 14:56
@coderabbitai coderabbitai bot mentioned this pull request Oct 18, 2024
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