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https://github.com/ConsenSys/vscode-solidity-auditor

Solidity language support and visual security auditor for Visual Studio Code
https://github.com/ConsenSys/vscode-solidity-auditor

security solidity vscode vscode-extension vscode-language vscode-theme

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Solidity language support and visual security auditor for Visual Studio Code

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[get in touch with Consensys Diligence](https://diligence.consensys.net)


[[ 🌐 ](https://diligence.consensys.net) [ 📩 ](mailto:[email protected]) [ 🔥 ](https://consensys.github.io/diligence/)]


# Solidity Visual Developer

- Advanced Solidity Language Support
- Code Augmentation
- Source Exploration
- Visual Security Linting

> An extension that supports developers in writing secure and well understood code

This extension contributes **security centric** syntax and semantic highlighting, a detailed class outline, specialized views, advanced Solidity code insights and augmentation to Visual Studio Code.

---

**⚠️ Note**: Customize this extension to fit your needs! Show/Hide/Enable/Disable features in `Preference → Settings → Solidity Visual Developer: solidity-va.*`, select one of the customized security-aware color themes in `Preferences → Color Themes`.

We ❤ feedback → [get in touch!](https://github.com/tintinweb/vscode-solidity-auditor/issues)

---

[Marketplace](https://marketplace.visualstudio.com/items?itemName=tintinweb.solidity-visual-auditor): `ext tintinweb.solidity-visual-auditor`

---

theme_light_vs

![vscode-solidity-auditor-interactive-graph](https://user-images.githubusercontent.com/2865694/57710279-e27e8a00-766c-11e9-9ca9-8cde50aa31fc.gif)

visual-auditor-new

vscode-solidity-auditor-uml

---

## Features

Semantic highlighting and solidity insights for passive security awareness. Most features are configurable (`preferences -> Settings -> Solidity Visual Developer`)

##### Themes (`preferences -> Color Theme`):

![dark_small](https://user-images.githubusercontent.com/2865694/61187950-85a54d00-a678-11e9-8b68-e015ab2c498c.png)
![light_small](https://user-images.githubusercontent.com/2865694/61187967-d452e700-a678-11e9-8661-7cd7839f88a6.png)
![solarized_small](https://user-images.githubusercontent.com/2865694/61187948-850cb680-a678-11e9-8b16-9616dfc09046.png)

- Visual Auditor Dark - based on the "Atom One" theme
- Visual Auditor Light (Visual Studio) - based on the standard "light (VSCode)" theme
- Visual Auditor Solarized Light - based on the standard "Solarized Light" theme

##### Syntax Highlighting

- **access modifiers** (`external`, `public`, `payable`, ...)
- security relevant built-ins, globals, methods and user/miner-tainted information (`address.call()`, `tx.origin`, `msg.data`, `block.*`, `now`)
- storage access modifiers (`memory`, `storage`)
- developer notes in comments (`TODO`, `FIXME`, `HACK`, ...)
- custom function modifiers
- contract creation / event invocations
- easily differentiate between arithmetics vs. logical operations
- make **Constructor** and **Fallback** function more prominent

Code fragments passively draw your attention to statements that typically _reduce risk_ ![#c5f015](https://via.placeholder.com/15/ccff00/000000?text=+) or _need your attention_ ![#f03c15](https://via.placeholder.com/15/f03c15/000000?text=+).

##### Semantic Highlighting

- highlights **StateVars** (constant, inherited)
- detects and alerts about StateVar shadowing
- highlights **function arguments** in the function body

##### Review Features

- audit annotations/bookmarks - `@audit - ` `@audit-ok - ` (see below)
- generic interface for importing external scanner results - cdili json format (see below)
- codelens inline action: graph, report, dependencies, inheritance, parse, ftrace, flatten, generate unittest stub, function signature hashes, uml

##### Graph- and Reporting Features

- 💒🤵👰 [vscode-solidity-auditor](https://github.com/tintinweb/vscode-solidity-auditor) ⚭ [Sūrya](https://github.com/ConsenSys/surya)
- access your favorite Sūrya features from within vscode!
- interactive call graphs with call flow highlighting and more!
- 📈🎉 auto-generate UML diagrams from code to support your threat modelling exercises or documentation!

##### Code Augmentation

- Hover over Ethereum Account addresses to download the byte-code, source-code or open it in the browser
- Hover over ASM instructions to show their signatures
- Hover over keywords to show basic Security Notes
- Hover over StateVar's to show declaration information

##### Views

- Cockpit View
- Explore and focus on solidity files in your workspace
- Generate report/graphs for any files/folders selected in the explorer views
- Selectively flatten files
- Search for contracts that are likely to be deployed in the system
- Context-sensitive views: click into a contract in the editor to list public state-changing method
- Get quick access to extension settings
- Outline View
- populates VS Code outline view with sourceUnit and contract layout
- contracts, stateVars, methods, inherited names
- annotates security relevant information (visibility, ...)
- calculates complexity rating
- annotations functions with information about whether they are accessing stateVars

# Installation

**Method 1:** Install by going to [Visual Studio Market Place](https://marketplace.visualstudio.com/items?itemName=tintinweb.solidity-visual-auditor#overview) and click `Install`.

**Method 2:** Bring up the Extension view in VS Code and search for `Solidity Visual Developer` and click `Install`

**Method 3 (Manual)**:

1. Download the [latest compiled extension as \*.vsix](https://github.com/tintinweb/vscode-solidity-auditor/releases)
2. Fire up Terminal and install the extension by running `code --install-extension "solidity-visual-auditor-0.0.x.vsix"`
3. vscode --> preferences --> color scheme --> **Solidity Visual Developer Dark**

# Tour

Scroll down and take the tour.

![visual_auditor_new](https://user-images.githubusercontent.com/2865694/55153942-f9682c00-5153-11e9-9e88-b3958c134c88.png)

- semantic highlighting for state variables (constant=green, statevar=golden, inherited=blue)
- semantic highlighting for function arguments
- outline view with security annotations and inherited names
- tooltips (asm instruction signatures, security notes)
- `@audit` tags
- graph's and uml
- generic interface to import issues from external scanners
- Cockpit View

Feature: Ethereum Account Address Actions

## Ethereum Account Address Actions

- `open` the account on etherscan.io
- show the contract `code`
- show the `VerifiedContract` source code
- `decompile` the byte-code. requires [vscode-decompiler](https://marketplace.visualstudio.com/items?itemName=tintinweb.vscode-decompiler)

image

Feature: Semantic function argument highlighting

## Semantic function argument highlighting

- arguments are assigned different colors in the scope of the function

semantic-arg-dark
semantic-arg-light

Feature: Inline Bookmarks

## Inline Bookmarks: @audit tags

This feature is provided by [Inline Bookmarks](https://marketplace.visualstudio.com/items?itemName=tintinweb.vscode-inline-bookmarks).

- `@audit - ` ... flag lines for security review or start a security review discussion
- `@audit-ok - ` ... flag that a line was checked for security or a security discussion on that line turned out to be a non-issue

audit-tags

Feature: Code Augmentation / Annotations / Hover / Tooltip

## Code Augmentation / Annotations / Hover / Tooltip

- additional information for various keywords (including security notes)

code_token_hover

- asm instruction signatures

code_asm_tooltip

- Address hover integration via [tintinweb.vscode-ethover](https://marketplace.visualstudio.com/items?itemName=tintinweb.vscode-ethover)
- Open it in etherscan (or whatever you configure)
- Show address balance in hover (mainnet) (note: might be rate-limited, configure your API key in settings)
- Download the bytecode and disassemble it.
- With hover info on instructions
- Representation of data as ASCII and resolving 4bytes to funcsigs, Color code reflects the type of instruction: stack, memory, storage, arithm., logic, system, environment, …
- Download the bytecode and show it.
- With hover info
- Click to see instruction boundaries
- Color coded bytes to reflect type of instruction)
- Show verified contract source (etherscan.io)
- Show reconstructed contract source from eveem.org
- Show reconstructed contract source from [evm.js](https://www.npmjs.com/package/evm)
- run [vscode-decompiler](https://marketplace.visualstudio.com/items?itemName=tintinweb.vscode-decompiler) to decompile it manually using panoramix (eveem.org) locally

image

Feature: State Variable Highlighting

## State Variable Highlighting

- highlight contract local stateVars (golden box)

code_statevar

- alert on a shadowed variable (red box)

code_shadowed

- highlight const stateVar (green box)

code_const

- highlight inherited stateVar (blue box `Approval`)

code_inherited

Feature: CodeLenses

## CodeLenses

- surya - interactive graph

![vscode-solidity-auditor-interactive-graph](https://user-images.githubusercontent.com/2865694/57710279-e27e8a00-766c-11e9-9ca9-8cde50aa31fc.gif)

- surya - generate report, show inheritance, show AST

![vscode-auditor-surya-report](https://user-images.githubusercontent.com/2865694/55647025-e5b86780-57dc-11e9-9cc0-b5197eb075b8.gif)

- flatten source file with [tintinweb.vscode-solidity-flattener](https://marketplace.visualstudio.com/items?itemName=tintinweb.vscode-solidity-flattener) (using [truffle-flattener](https://www.npmjs.com/package/truffle-flattener))

![vscode-auditor-unittest](https://user-images.githubusercontent.com/2865694/55646826-72aef100-57dc-11e9-800b-fc649b41b4a9.gif)

- surya - ftrace

![vscode-auditor-ftrace](https://user-images.githubusercontent.com/2865694/55646883-983bfa80-57dc-11e9-8e40-6194d1429dac.gif)

- UML - auto-generate UML for source-units or specific contracts

vscode-solidity-auditor-uml

- Function Signature Hashes

sva_light_vscode

Feature: Outline View

## Outline View

- library with function parameters `T` and declarations

outline_lib

- class and events, functions annotated (stateMutability, visibility)

outline_class_event

- class and events, functions annotated (stateMutability, visibility)

outline_class_2

- inheritance browser - resolves inheritance, only shows inherited names

outline_inherit

- extra information (subjective function complexity; accesses stateVar?)

outline_extra

Feature: Cockpit View

## Cockpit View

We've been working on a new cockpit view that allows you to navigate large codebases more efficiently. Check out the new  sidebar-logo  icon in the activity bar to your left.

So, what can you do with it?

- Explore .sol files with the new workspace explorer
- Generate report/graphs for any files/folders selected in the explorer views

imageimage
- Conveniently flatten selected files (selected folders or all files in the top-level view) (Note: `truffle-flattener` may require an `npm install` of the project for flattening to work)
- Search for contracts that are likely to be deployed in the system (complete workspace or selected folders)

image
- Context-sensitive views: click into a contract in the editor to list public state-changing methods

image
- Get quick access to extension settings

image

And there is more to come 🙌 stay tuned!

**Note**: The cockpit view is fully customizable. You can hide both the sidebar menu or any view in the cockpit that you do not need (right-click → hide).

BuiltIn: Commands

## Commands

- suggest top level contracts aka "entrypoint contracts" (most derived)
- flatten current (codelens) or all suggested top level contracts (command)
![vscode-auditor-flaterra](https://user-images.githubusercontent.com/2865694/55907553-5db8d000-5bd7-11e9-8a11-8cef3964e284.gif)
- list all function signatures (human readable or json format)
![vscode-auditor-funcsigs](https://user-images.githubusercontent.com/2865694/55907153-3f9ea000-5bd6-11e9-8a47-e69a762963e9.gif)
- open remix in external browser

Please refer to the extension's contribution section to show an up-to-date list of commands.

Theme: Solidity Visual Developer Light (VSCode)

## Theme: Solidity Visual Developer Light (VSCode)

theme_light_vs

Theme: Solidity Visual Developer Dark

## Theme: Solidity Visual Developer Dark

**Simple DAO**

screenshot 2019-02-09 at 12 30 30

**Vulnerable Contract**

![highlight](https://user-images.githubusercontent.com/2865694/52523502-4bcbb700-2c92-11e9-9ef1-085e3a244cda.png)

Theme: Solidity Visual Developer Solarized Light

## Theme: Solidity Visual Developer Solarized Light

**Simple DAO**

screenshot 2019-02-11 at 21 52 11

Configuration: Settings & Customizations

## Extension Settings

- `solidity-va.mode.active` .. Enable/Disable all active components of this extension (emergency master-switch).
- `Solidity-va.parser.parseImports` ... Whether to recursively parse imports or not
- `Solidity-va.hover` ... Enable or Disable generic onHover information (asm instruction signatures, security notes)
- `Solidity-va.deco.statevars` ... decorate statevars in code view (golden, green, blue boxes)
- `Solidity-va.deco.arguments` ... enable/disable or select the mode for semantic highlighting of function arguments. (default: 'enable' = 'color and arrow')
- `Solidity-va.deco.argumentsMode` ... select the mode for semantic highlighting of function arguments (may require a reload)
- `Solidity-va.deco.argumentsSuffix` ... a custom Suffix/Symbol that is appended to the decoration when performing semantic highlighting for function arguments
- `Solidity-va.outline.enable` ... enable/disable outline and symbolprovider
- `Solidity-va.outline.decorations` ... decorate functions according to state mutability function visibility
- `Solidity-va.outline.inheritance.show` ... add inherited functions to outline view
- `Solidity-va.outline.extras` ... annotate functions with extra information (complexity, statevar access)
- `Solidity-va.outline.var.storage_annotations` ... Whether to show/hide storage annotations for variables in the outline view
- `Solidity-va.outline.pragmas.show` ... Whether to show/hide pragmas in the outline view
- `Solidity-va.outline.imports.show` ... Whether to show/hide imports in the outline view
- `Solidity-va.diagnostics.import.cdili-json` ... Automatically import diagnostic issues from external scanners using the `cdili-issue.json` format:
```json
{
"onInputFile": "contracts/BountiesMetaTxRelayer.sol",
"atLineNr": "10",
"ruleType": "code_smell",
"severity": "major",
"linterVersion": "0.1",
"linterName": "maru",
"message": "State Variable Default Visibility - It is best practice to set the visibility of state variables explicitly. The default visibility for \"bountiesContract\" is internal. Other possible visibility values are public and private.",
"forRule": "State_Variable_Default_Visibility"
}
```
- `Solidity-va.codelens.enable` ... enable/disable codelens support (inline code actions)
- `solidity-va.preview.dot` ... open dot output in graphviz rendered form
- `solidity-va.preview.markdown` ... open markdown output in rendered form
- `Solidity-va.tools.surya.input.contracts` ... Define whether surya should take cached files or all contracts in the workspace as input

Please refer to the extension's contribution section to show an up-to-date list of settings.

## FAQ

- **Q:** The `uml` feature does not seem to work. How can I set it up?
- **A:** We are relying on a properly set-up [plantuml](https://plantuml.com/) installation. Please follow the set-up guide at [jebbs-plantuml vscode extension](https://marketplace.visualstudio.com/items?itemName=jebbs.plantuml).

## Known Issues

- outline view does not always refresh. **TempFix**: modify and save the file to trigger a refresh.
- codelenses do not appear. **TempFix**: modify and save the file to trigger a refresh.
- [github issues](https://github.com/tintinweb/vscode-solidity-auditor/issues)

# Acknowledgements

- Themes: [Atom One Dark Theme](https://github.com/akamud/vscode-theme-onedark) and an adapted version of built-in `Solarized Light`
- Base Grammar for Solidity: [vscode-solidity](https://github.com/juanfranblanco/vscode-solidity)

# Release Notes

[Changelog](https://github.com/tintinweb/vscode-solidity-auditor/blob/master/CHANGELOG.md)