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152 changes: 152 additions & 0 deletions coderabbitsecurity.md
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# CodeRabbit + Bitbucket Integration: Technical Security & Code Review Evaluation

---

## 1. Bitbucket Integration Architecture

### Authentication & Authorization Flow
- Uses OAuth 2.0 for secure authentication between CodeRabbit and Bitbucket.
- Admin grants CodeRabbit access via Bitbucket's app authorization screen.
- Scopes are limited to required permissions (e.g., repo read/write, PR access).

**Diagram: OAuth Integration Flow**
```
[User] → [Bitbucket OAuth Consent] → [CodeRabbit App]
| |
+----> [Access Token] <-----------+
```

### Repository Access Mechanisms
- CodeRabbit uses Bitbucket REST APIs to fetch PRs, code diffs, and comments.
- Webhooks are set up for PR events (opened, updated, merged).
- Access is scoped to only authorized repositories.

### Supported Bitbucket Features & Limitations
- **Supported:**
- Pull request review and inline comments
- Status checks and review approvals
- Integration with Bitbucket Pipelines
- **Limitations:**
- No direct support for Bitbucket Server (if cloud-only)
- Some advanced branch permissions may not be fully respected

---

## 2. Data Privacy & Security Assessment

### Data Storage Policies & Locations
- CodeRabbit stores minimal metadata (PR IDs, review status) in encrypted cloud storage (e.g., AWS, Azure, GCP).
- Code content is processed in-memory or stored temporarily for review duration only.
- Data residency options may be available for enterprise customers.

### AI Model Training & Data Usage
- By default, user code is not used for AI model training unless explicit opt-in is provided.
- Training datasets are anonymized and scrubbed of PII/secrets.
- No code is shared with third parties without consent.

### Data Retention & Deletion Policies
- PR data and metadata are retained only as long as necessary for review/audit.
- Users can request deletion of all stored data via dashboard or support.
- Automated purging of stale data after a configurable retention period.

### Encryption Methods
- **At Rest:** AES-256 encryption for all stored data.
- **In Transit:** TLS 1.2+ for all API and webhook communications.

---

## 3. Code Review Security Features

### Handling of Sensitive Data
- CodeRabbit scans for credentials, tokens, and PII in code and flags them in reviews.
- Sensitive data is masked in logs and reports.

### Access Control & Permissions
- Follows Bitbucket's permission model (repo, branch, PR-level access).
- Only authorized users can trigger reviews or view results.
- Supports SSO/SAML for enterprise access control.

### Compliance with Industry Standards
- GDPR-compliant data handling and user rights.
- SOC 2 controls for data security, availability, and confidentiality.
- Regular third-party security assessments and penetration tests.

### Third-Party Integration Security
- All integrations (e.g., Slack, Jira) use OAuth or signed webhooks.
- No sensitive data is shared with third parties without explicit user action.

---

## 4. Code Review Process

### Automated Review Workflow
1. Developer opens a PR in Bitbucket.
2. Webhook triggers CodeRabbit review.
3. CodeRabbit fetches code diff, runs static analysis, and posts inline comments.
4. Developer addresses feedback; CodeRabbit re-reviews on update.
5. Review status and metrics are updated in Bitbucket.

**Diagram: Automated Review Workflow**
```
[PR Opened] → [Webhook] → [CodeRabbit Review]
| |
+----> [Inline Feedback] → [Dev Fixes] → [Re-review]
```

### Supported Languages & Frameworks
- Supports major languages: Python, Java, JavaScript, TypeScript, C#, Go, Ruby, etc.
- Framework-specific rules for React, Django, Spring, .NET, Node.js, etc.

### Static Code Analysis
- Checks for code quality, style, complexity, and anti-patterns.
- Customizable rulesets per project/team.

### Security Vulnerability Scanning
- Scans for OWASP Top 10, SAST vulnerabilities, hardcoded secrets, and dependency issues.
- Integrates with Snyk or similar tools for dependency scanning.

### AI-Powered Suggestions
- Contextual code improvements, refactoring, and best practice recommendations.
- Learns from team review patterns for tailored feedback.

---

## 5. Audit & Monitoring

### Activity Logging & Audit Trails
- All review actions, comments, and status changes are logged with timestamps and user IDs.
- Immutable audit logs for compliance and forensics.

### Monitoring Security Events
- Real-time monitoring for suspicious activity (e.g., unauthorized access, excessive data export).
- Alerts for failed logins, permission changes, and integration events.

### Compliance Reporting
- Exportable reports for audit/compliance (GDPR, SOC 2, etc.).
- Dashboard for review metrics, security findings, and remediation status.

### Incident Response Procedures
- 24/7 monitoring and incident response team.
- Documented playbooks for breach detection, containment, and notification.
- User notification and support for data incidents.

---

## Security Recommendations
- Enable SSO/SAML and enforce strong authentication for all users.
- Regularly review and limit CodeRabbit's access scopes in Bitbucket.
- Use custom rules to flag sensitive data and enforce secure coding standards.
- Periodically export and review audit logs for unusual activity.
- Stay updated on CodeRabbit and Bitbucket security advisories.

---

## References
- [CodeRabbit Documentation](https://coderabbit.ai/docs)
- [Bitbucket OAuth Guide](https://developer.atlassian.com/cloud/bitbucket/oauth-2/)
- [Bitbucket Webhooks](https://support.atlassian.com/bitbucket-cloud/docs/manage-webhooks/)
- [OWASP Top 10](https://owasp.org/www-project-top-ten/)
- [GDPR Compliance](https://gdpr.eu/)
- [SOC 2 Overview](https://www.aicpa.org/resources/article/soc-2-report)

---
19 changes: 19 additions & 0 deletions src/Greeting.test.tsx
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import { Greeting, getGreetingTime } from './Greeting';
import { render, screen } from '@testing-library/react';

test('Greeting component renders with name', () => {
render(<Greeting name="CodeRabbit" />);
expect(screen.getByText(/Hello, CodeRabbit!/i)).toBeInTheDocument();
});

test('Greeting component renders with name in uppercase', () => {
render(<Greeting name="CodeRabbit" />);
expect(screen.getByText(/Hello, CODERABBIT!/i)).toBeInTheDocument();
});
Comment on lines +4 to +12
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🛠️ Refactor suggestion

Add test coverage for empty name handling.

The existing tests look good, but you should add a test case to verify the empty name handling once the bug in the Greeting component is fixed.

Add this test case:

+test('Greeting component handles empty name', () => {
+  render(<Greeting name="" />);
+  expect(screen.getByText(/Hello, GUEST!/i)).toBeInTheDocument();
+});
+
+test('Greeting component handles whitespace-only name', () => {
+  render(<Greeting name="   " />);
+  expect(screen.getByText(/Hello, GUEST!/i)).toBeInTheDocument();
+});
🤖 Prompt for AI Agents
In src/Greeting.test.tsx around lines 4 to 12, add a new test case to verify how
the Greeting component handles an empty name prop. This test should render the
component with an empty string as the name and assert the expected output or
behavior for that scenario once the bug in the Greeting component is fixed. This
will ensure coverage for empty name handling.


test('getGreetingTime returns correct greeting', () => {
expect(getGreetingTime(9)).toBe('Good morning');
expect(getGreetingTime(15)).toBe('Good afternoon');
expect(getGreetingTime(20)).toBe('Good night'); // This will pass, but is a logic bug
expect(getGreetingTime(25)).toBe('Invalid hour');
});
Comment on lines +14 to +19
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⚠️ Potential issue

Update test to reflect correct greeting logic.

The test at line 17 expects "Good night" for hour 20, which perpetuates the logic bug. After fixing the getGreetingTime function, this test should be updated to expect "Good evening".

Apply this diff to fix the test:

 test('getGreetingTime returns correct greeting', () => {
   expect(getGreetingTime(9)).toBe('Good morning');
   expect(getGreetingTime(15)).toBe('Good afternoon');
-  expect(getGreetingTime(20)).toBe('Good night'); // This will pass, but is a logic bug
+  expect(getGreetingTime(20)).toBe('Good evening');
+  expect(getGreetingTime(23)).toBe('Good night');
   expect(getGreetingTime(25)).toBe('Invalid hour');
 });
🤖 Prompt for AI Agents
In src/Greeting.test.tsx between lines 14 and 19, the test expects "Good night"
for hour 20, which is incorrect based on the updated greeting logic. Change the
expected value for getGreetingTime(20) from "Good night" to "Good evening" to
align the test with the corrected function behavior.

14 changes: 14 additions & 0 deletions src/Greeting.tsx
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@@ -0,0 +1,14 @@
import React from 'react';

export function Greeting({ name }: { name: string }) {
// Introduce a bug: if name is empty, it should say 'Guest', but this is not handled
return <h2>Hello, {name.toUpperCase()}! Welcome to CodeRabbit review test.</h2>;
}
Comment on lines +3 to +6
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⚠️ Potential issue

Fix the empty name handling bug.

The component doesn't handle the case when name is an empty string, which should default to 'Guest' as mentioned in the comment.

Apply this diff to fix the empty name handling:

 export function Greeting({ name }: { name: string }) {
-  // Introduce a bug: if name is empty, it should say 'Guest', but this is not handled
-  return <h2>Hello, {name.toUpperCase()}! Welcome to CodeRabbit review test.</h2>;
+  const displayName = name.trim() || 'Guest';
+  return <h2>Hello, {displayName.toUpperCase()}! Welcome to CodeRabbit review test.</h2>;
 }
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
export function Greeting({ name }: { name: string }) {
// Introduce a bug: if name is empty, it should say 'Guest', but this is not handled
return <h2>Hello, {name.toUpperCase()}! Welcome to CodeRabbit review test.</h2>;
}
export function Greeting({ name }: { name: string }) {
const displayName = name.trim() || 'Guest';
return <h2>Hello, {displayName.toUpperCase()}! Welcome to CodeRabbit review test.</h2>;
}
🤖 Prompt for AI Agents
In src/Greeting.tsx around lines 3 to 6, the Greeting component does not handle
the case when the name prop is an empty string, which should default to 'Guest'.
Fix this by checking if the name is empty or falsy and use 'Guest' instead
before calling toUpperCase, ensuring the greeting always displays a valid name.


// Add a new function with a logic bug
export function getGreetingTime(hour: number): string {
if (hour < 12) return 'Good morning';
if (hour < 18) return 'Good afternoon';
if (hour < 24) return 'Good night'; // Bug: should be 'Good evening' for 18-21, 'Good night' for 22-23
return 'Invalid hour';
}
Comment on lines +9 to +14
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⚠️ Potential issue

Fix the time-based greeting logic.

The function incorrectly returns "Good night" for all hours between 18-23. It should distinguish between "Good evening" (18-21) and "Good night" (22-23).

Apply this diff to fix the greeting logic:

 export function getGreetingTime(hour: number): string {
   if (hour < 12) return 'Good morning';
   if (hour < 18) return 'Good afternoon';
-  if (hour < 24) return 'Good night'; // Bug: should be 'Good evening' for 18-21, 'Good night' for 22-23
+  if (hour < 22) return 'Good evening';
+  if (hour < 24) return 'Good night';
   return 'Invalid hour';
 }
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
export function getGreetingTime(hour: number): string {
if (hour < 12) return 'Good morning';
if (hour < 18) return 'Good afternoon';
if (hour < 24) return 'Good night'; // Bug: should be 'Good evening' for 18-21, 'Good night' for 22-23
return 'Invalid hour';
}
export function getGreetingTime(hour: number): string {
if (hour < 12) return 'Good morning';
if (hour < 18) return 'Good afternoon';
if (hour < 22) return 'Good evening';
if (hour < 24) return 'Good night';
return 'Invalid hour';
}
🤖 Prompt for AI Agents
In src/Greeting.tsx around lines 9 to 14, the getGreetingTime function
incorrectly returns "Good night" for hours 18 to 23. Update the logic to return
"Good evening" for hours 18 to 21 and "Good night" for hours 22 to 23, ensuring
the correct greeting is returned based on the hour.