Update to Cadence v1.0#2
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WalkthroughThe changes involve updates to access control levels in various Cadence files, enhancing the visibility of contracts, functions, and resources. The Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant Contract
participant Account
User->>Contract: Call sayHello()
Contract->>User: Return greeting
User->>Account: Make friends
Account->>Contract: Execute makeFriends()
Contract->>Account: Save Friendship resource
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Actionable comments posted: 2
Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Files selected for processing (6)
- README.md (1 hunks)
- cadence/contracts/Person.cdc (2 hunks)
- cadence/scripts/helloWorld.cdc (1 hunks)
- cadence/scripts/sayHello.cdc (1 hunks)
- cadence/transactions/makeFriends.cdc (1 hunks)
- flow.json (1 hunks)
Additional context used
Gitleaks
flow.json
13-13: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
17-17: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
LanguageTool
README.md
[style] ~68-~68: The word ‘wanna’ is informal.
Context: ...Using external dependencies If you wanna use external contract dependencies (lik...(WANNA)
[typographical] ~68-~68: Two consecutive dots
Context: ...FungibleToken, FlowToken, FungibleToken,..) you can install them using Cadence dep...(DOUBLE_PUNCTUATION)
Markdownlint
README.md
68-68: null
Bare URL used(MD034, no-bare-urls)
66-66: null
Emphasis used instead of a heading(MD036, no-emphasis-as-heading)
Additional comments not posted (13)
cadence/scripts/helloWorld.cdc (1)
1-1: Verify the intent and security implications of the access level change.The change from
pubtoaccess(all)significantly broadens the accessibility of themainfunction. While this enhances its usability across various contexts, it also raises concerns about potential misuse or security risks, especially if the function is part of a larger, more complex system.Please confirm that this change aligns with the intended use cases and security guidelines of the project. Consider restricting access if the function handles sensitive operations or data.
cadence/scripts/sayHello.cdc (1)
3-3: Review the change in access control for themainfunction.The change from
pubtoaccess(all)significantly broadens the accessibility of themainfunction. This alteration allows any entity in the Cadence environment to call this function, which could have implications for security and modularity. It's crucial to ensure that this broader access does not inadvertently expose sensitive functionality or data.Verification successful
The change to
access(all)for themainfunction is consistent with the codebase pattern.The
mainfunction incadence/scripts/sayHello.cdcandcadence/scripts/helloWorld.cdcboth useaccess(all), suggesting a standardization effort. No other files reference these functions, indicating that the change does not introduce unintended consequences. The broader project changes do not impact this specific modification.Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify if the broader changes in the project are consistent with the changes in this file. # Test: Search for mentions of `main` function in other Cadence files to see if its usage aligns with the new access level. fd --type f --extension cdc | xargs rg 'main'Length of output: 168
cadence/transactions/makeFriends.cdc (3)
7-8: Approve the updatedpreparefunction signature.The new function signature enforces stricter access control, which aligns with the security enhancements described in the PR. Consider adding a comment in the code explaining why these specific capabilities (
Storage | SaveValue) are required for the signer.
15-15: Approve the updated method of saving the friendship resource.The change to use
self.acc.storage.save<@Person.Friendship>clarifies the operation and aligns with the updated account type. This explicit interaction with the account's storage capabilities is a good practice.
5-5: Verify the impact of changingaccvariable type.The change from
AuthAccountto&Accountenhances flexibility but may affect how the account is accessed in other transactions or scripts. It's crucial to verify that this change does not break existing functionality.Run the following script to verify the usage of
accin other transactions and scripts:Verification successful
Change to
accvariable type is localized.The modification of
accfromAuthAccountto&Accountis confined to themakeFriends.cdcfile. Thepreparefunction correctly assignssignertoself.acc, and no other parts of the codebase are affected by this change. This ensures that existing functionality remains intact.Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify the usage of `acc` in other transactions and scripts. # Test: Search for the usage of `acc`. Expect: Only occurrences of the new type. rg --type cadence -A 5 $'let acc: &Account'Length of output: 76
Script:
#!/bin/bash # Description: Verify the usage of `acc` in other transactions and scripts. # Test: Search for the usage of `acc` with the new type across all files. rg -A 5 $'let acc: &Account'Length of output: 368
flow.json (2)
2-4: Approved changes in thecontractssection.The simplification to include only the
Personcontract aligns with the PR objectives and helps focus the project's scope.
20-26: Approved changes in thedeploymentssection.The new deployment configuration for the
Personcontract under theemulatorenvironment simplifies and focuses the deployment process, aligning with the PR objectives.cadence/contracts/Person.cdc (6)
6-6: Approved: Contract visibility increased.The change from
pubtoaccess(all)for the contractPersonincreases its visibility, allowing broader access across different modules and packages. This aligns with the PR's goal to enhance accessibility.
8-8: Approved: Increased visibility of variablename.Changing the access level of the variable
namefrompubtoaccess(all)allows it to be accessed more freely. While this enhances flexibility, it's important to ensure that this does not lead to unintended side effects or security issues.
17-17: Approved: FunctionsayHellovisibility increased.The access level change for the function
sayHellofrompubtoaccess(all)is consistent with the PR's objective to enhance visibility and accessibility of contract components.
22-22: Approved: FunctionmakeFriendsvisibility increased.The access level change for the function
makeFriendsfrompubtoaccess(all)allows it to be accessed more broadly, aligning with the PR's objectives to enhance contract accessibility.
29-29: Approved: ResourceFriendshipvisibility increased.The access level change for the resource
Friendshipfrompubtoaccess(all)increases its visibility. It's important to monitor how this change affects the management and interaction with this resource.
31-31: Approved: FunctionyaaywithinFriendshipvisibility increased.The access level change for the function
yaayfrompubtoaccess(all)is consistent with the broader accessibility changes made to theFriendshipresource. This enhances the function's usability across different modules.
| "accounts": { | ||
| "default": { | ||
| "address": "f669cb8d41ce0c74", | ||
| "key": "6d12eebfef9866c9b6fa92b97c6e705c26a1785b1e7944da701fc545a51d4673" | ||
| }, | ||
| "emulator-account": { | ||
| "address": "f8d6e0586b0a20c7", | ||
| "key": "6d12eebfef9866c9b6fa92b97c6e705c26a1785b1e7944da701fc545a51d4673" | ||
| } |
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Security Issue: Exposed API Keys.
The API keys for both the default and emulator-account are exposed in the configuration file, which poses a significant security risk.
Consider using environment variables or a secure vault solution to manage these keys instead of hardcoding them in the configuration file.
Approved addition of the default account.
The new default account aligns with the PR objectives to streamline account management.
Tools
Gitleaks
13-13: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
17-17: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.
(generic-api-key)
There was a problem hiding this comment.
Actionable comments posted: 0
Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Files selected for processing (2)
- .gitignore (1 hunks)
- README.md (1 hunks)
Files skipped from review due to trivial changes (1)
- .gitignore
Additional context used
LanguageTool
README.md
[style] ~68-~68: The word ‘wanna’ is informal.
Context: ...Using external dependencies If you wanna use external contract dependencies (lik...(WANNA)
[typographical] ~68-~68: Two consecutive dots
Context: ...FungibleToken, FlowToken, FungibleToken,..) you can install them using Cadence dep...(DOUBLE_PUNCTUATION)
Markdownlint
README.md
68-68: null
Bare URL used(MD034, no-bare-urls)
66-66: null
Emphasis used instead of a heading(MD036, no-emphasis-as-heading)
Additional comments not posted (1)
README.md (1)
66-70: Apply suggested improvements to the section on using external dependencies.The previous comments on this section are still valid and applicable. Please consider applying the following changes to enhance clarity, formality, and typographical consistency:
-If you wanna use external contract dependencies (like NonFungibleToken, FlowToken, FungibleToken,..) you can install them using Cadence dependency manager: https://developers.flow.com/tools/flow-cli/dependency-manager +If you want to use external contract dependencies (like NonFungibleToken, FlowToken, FungibleToken.) you can install them using the [Cadence dependency manager](https://developers.flow.com/tools/flow-cli/dependency-manager).Tools
LanguageTool
[style] ~68-~68: The word ‘wanna’ is informal.
Context: ...Using external dependencies If you wanna use external contract dependencies (lik...(WANNA)
[typographical] ~68-~68: Two consecutive dots
Context: ...FungibleToken, FlowToken, FungibleToken,..) you can install them using Cadence dep...(DOUBLE_PUNCTUATION)
Markdownlint
68-68: null
Bare URL used(MD034, no-bare-urls)
66-66: null
Emphasis used instead of a heading(MD036, no-emphasis-as-heading)
There was a problem hiding this comment.
Actionable comments posted: 1
Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Files selected for processing (1)
- README.md (1 hunks)
Additional context used
Markdownlint
README.md
66-66: null
Emphasis used instead of a heading(MD036, no-emphasis-as-heading)
Additional comments not posted (1)
README.md (1)
66-70: Approved: Updated section on external dependencies.The updates to this section have improved its clarity and professionalism. The use of markdown links and the formal language aligns well with best practices.
Tools
Markdownlint
66-66: null
Emphasis used instead of a heading(MD036, no-emphasis-as-heading)
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Actionable comments posted: 0
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Files selected for processing (1)
- README.md (2 hunks)
Additional context used
Markdownlint
README.md
42-42: null
Fenced code blocks should have a language specified(MD040, fenced-code-language)
Additional comments not posted (5)
README.md (5)
Line range hint
1-35: Introduction and Getting Started sections are well-crafted.These sections effectively guide new users with essential resources and a welcoming tone.
Tools
LanguageTool
[uncategorized] ~48-~48: Did you mean: “By default,”?
Context: ... #### Deploying to specific accounts By default all contracts are deployed to a default...(BY_DEFAULT_COMMA)
[uncategorized] ~49-~49: Use a comma before ‘and’ if it connects two independent clauses (unless they are closely connected and short).
Context: ...ing a folder inside the contracts folder and we will create the account for you whic...(COMMA_COMPOUND_SENTENCE)
Markdownlint
42-42: null
Fenced code blocks should have a language specified(MD040, fenced-code-language)
37-37: Project Structure section is clear and informative.This section effectively outlines the organization and purpose of the project directories.
39-39: Start Developing section provides clear instructions.The commands and their purposes are well explained, aiding developers in setting up their environment.
47-47: Importing Contracts section is straightforward and practical.The section provides clear instructions and a useful example on how to handle contract imports.
66-70: Using External Dependencies section is well-structured and improved.The improvements suggested in previous reviews have been implemented effectively. The section now provides clear guidance on managing external dependencies with useful tools and links.
2 participants
Description
flow devcommandSummary by CodeRabbit
New Features
Personcontract and its functions, allowing broader interactions.Personcontract.Documentation
Bug Fixes