### Example CLI usage

Source: https://github.com/felippe-regazio/ssrfcheck/blob/main/README.md

An example of using the ssrfcheck CLI to test a specific URL. This demonstrates how to invoke the tool for a quick check.

```bash
npx ssrfcheck https://localhost:8080/whatever
```

--------------------------------

### Install ssrfcheck using npm

Source: https://github.com/felippe-regazio/ssrfcheck/blob/main/README.md

Install the ssrfcheck package using npm. This is the first step to using the library in your project.

```bash
npm install ssrfcheck
```

--------------------------------

### Global installation of ssrfcheck

Source: https://github.com/felippe-regazio/ssrfcheck/blob/main/README.md

Install the ssrfcheck library globally for command-line use without requiring npx. This allows direct execution of the ssrfcheck command.

```bash
npm install -g ssrfcheck
```

--------------------------------

### Validate URL using SSRFCheck CLI

Source: https://github.com/felippe-regazio/ssrfcheck/blob/main/README.md

Execute SSRFCheck from the command line with specific options like allowed protocols and username allowance. This example uses `npx` to run the tool.

```bash
npx ssrfcheck ftp://user:pass@localhost:8080/whatever --allowed-protocols=ftp,http,https --allow-username
```

--------------------------------

### Use ssrfcheck via CLI

Source: https://github.com/felippe-regazio/ssrfcheck/blob/main/README.md

Execute the ssrfcheck command-line interface with a URI and optional arguments. The tool outputs 'Safe' for secure URLs and 'Danger!' for potentially vulnerable ones.

```bash
npx ssrfcheck <uri> <options>
```

--------------------------------

### Validate URL with Custom Options in JavaScript

Source: https://github.com/felippe-regazio/ssrfcheck/blob/main/README.md

Use `isSSRFSafeURL` to validate a URL, allowing specific protocols and username in the URL. Ensure the `ssrfcheck` library is imported.

```javascript
import { isSSRFSafeURL } from 'ssrfcheck';

const url = 'https://localhost:8080/whatever';

const result = isSSRFSafeURL(url, {
  allowUsername: true,
  allowedProtocols: [ 'http', 'https', 'ftp' ],
});
```

--------------------------------

### Check URL safety with isSSRFSafeURL (ESM)

Source: https://github.com/felippe-regazio/ssrfcheck/blob/main/README.md

Import and use the isSSRFSafeURL function from the ssrfcheck library in an ES Module environment. It returns true for safe URLs and false for unsafe ones.

```javascript
import { isSSRFSafeURL } from 'ssrfcheck';

const url = 'https://localhost:8080/whatever';
const result = isSSRFSafeURL(url); // false
```

--------------------------------

### isSSRFSafeURL function signature and options

Source: https://github.com/felippe-regazio/ssrfcheck/blob/main/README.md

Defines the TypeScript signature for the isSSRFSafeURL function and outlines the available options object for customizing the URL validation process.

```typescript
function isSSRFSafeURL(url: string, options: Options): boolean;

{
  quiet: boolean,
  noIP: boolean,
  allowUsername: boolean,
  allowedProtocols: string[],
  autoPrependProtocol: string,
  allowUnsafeChars: boolean,
}
```

--------------------------------

### Check URL safety with isSSRFSafeURL (CommonJS)

Source: https://github.com/felippe-regazio/ssrfcheck/blob/main/README.md

Import and use the isSSRFSafeURL function from the ssrfcheck library in a CommonJS environment. It returns true for safe URLs and false for unsafe ones.

```javascript
const { isSSRFSafeURL } = require('ssrfcheck');

const url = 'https://localhost:8080/whatever';
const result = isSSRFSafeURL(url); // false
```

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