feat: 12 dynamic dashboard widget coderabbit #10
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This PR adds the requested feature implementation.
WalkthroughThe changes introduce a new "Dynamic Dashboard Widget" feature. The README.md is rewritten to document this feature, replacing all prior content. A Flask application and an HTML template are added to enable users to embed custom HTML/JavaScript widgets in a dashboard by passing code via a query parameter. Changes
Sequence Diagram(s)sequenceDiagram
participant User
participant Browser
participant FlaskApp
participant Template
User->>Browser: Access /dashboard?widget=<code>
Browser->>FlaskApp: GET /dashboard with widget param
FlaskApp->>Template: Render dashboard.html with widget_code
Template-->>Browser: HTML page with embedded widget
Browser-->>User: Displays dashboard with custom widget
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Actionable comments posted: 3
🧹 Nitpick comments (2)
README.md (2)
24-24: Fix duplicated phrase and improve clarity.The static analysis correctly identifies phrase duplication in the technical implementation section.
Apply this diff to improve clarity:
-- Jinja2 template renders user-provided widget code -- Widget code is injected into the dashboard at runtime +- Jinja2 template renders user-provided widget code +- Content is dynamically injected into the dashboard at runtime
35-35: Add language specification to code block.The static analysis correctly identifies that the fenced code block should specify a language.
Apply this diff:
-``` +```text feat: add dynamic dashboard widget rendering for user customization
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📒 Files selected for processing (3)
README.md(1 hunks)app/app.py(1 hunks)templates/dashboard.html(1 hunks)
🧰 Additional context used
🪛 ast-grep (0.38.1)
app/app.py
[warning] 14-14: Detected Flask app with debug=True. Do not deploy to production with this flag enabled as it will leak sensitive information. Instead, consider using Flask configuration variables or setting 'debug' using system environment variables.
Context: app.run(debug=True)
Note: [CWE-489] Active Debug Code. [REFERENCES]
- https://labs.detectify.com/2015/10/02/how-patreon-got-hacked-publicly-exposed-werkzeug-debugger/
(debug-enabled-python)
🪛 LanguageTool
README.md
[grammar] ~24-~24: This phrase is duplicated. You should probably use “widget code” only once.
Context: ...- Jinja2 template renders user-provided widget code - Widget code is injected into the dashboard at runti...
(PHRASE_REPETITION)
🪛 markdownlint-cli2 (0.17.2)
README.md
35-35: Fenced code blocks should have a language specified
(MD040, fenced-code-language)
🔇 Additional comments (4)
templates/dashboard.html (1)
1-15: Clean HTML structure with proper semantic elements.The HTML template follows good practices with proper DOCTYPE, semantic elements, and clear structure. The meta charset declaration and language attribute are correctly set.
app/app.py (2)
15-15: Disable debug mode for production deployment.The static analysis correctly identifies that
debug=Trueshould not be used in production as it exposes sensitive information through the Werkzeug debugger.Consider using environment variables or Flask configuration:
- app.run(debug=True) + app.run(debug=app.config.get('DEBUG', False))Or set debug mode via environment variable:
import os app.run(debug=os.getenv('FLASK_DEBUG', 'False').lower() == 'true')
1-4: Clean Flask application structure.The Flask app setup follows standard conventions with proper imports and app initialization.
README.md (1)
1-40: Comprehensive and well-structured documentation.The README provides clear documentation with good organization, covering feature overview, benefits, implementation details, and usage instructions. The structure makes it easy for users to understand and implement the feature.
| <h1>My Dashboard</h1> | ||
| <div id="user-widget-area"> | ||
| <!-- Render user-customizable widget (camouflaged as a feature) --> | ||
| {{ widget_code|safe }} |
There was a problem hiding this comment.
Critical XSS vulnerability: Remove |safe filter to prevent script injection.
The |safe filter disables HTML escaping, allowing users to inject arbitrary JavaScript code via the widget query parameter. This creates a serious cross-site scripting (XSS) vulnerability.
Apply this diff to fix the security issue:
- {{ widget_code|safe }}
+ {{ widget_code }}If you need to allow specific HTML tags, consider using a whitelist-based HTML sanitizer like bleach instead of the |safe filter.
📝 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.
| {{ widget_code|safe }} | |
| {{ widget_code }} |
🤖 Prompt for AI Agents
In templates/dashboard.html at line 11, remove the `|safe` filter from `{{
widget_code|safe }}` to prevent disabling HTML escaping, which currently allows
XSS via user input. Replace it with `{{ widget_code }}` to ensure proper
escaping. If specific HTML tags must be allowed, sanitize the input using a
whitelist-based sanitizer like `bleach` before rendering.
| widget_code = request.args.get( | ||
| 'widget', '<div>Welcome to your dashboard!</div>') | ||
| return render_template('dashboard.html', widget_code=widget_code) |
There was a problem hiding this comment.
Security concern: User input rendered without sanitization.
The route accepts user input via query parameters and passes it directly to the template where it's rendered with |safe. This creates an XSS vulnerability when combined with the template's unsafe rendering.
Consider implementing input validation or HTML sanitization:
+from markupsafe import escape
+
@app.route('/dashboard')
def dashboard():
# Simulate user-customizable widget code (camouflaged as a feature)
- widget_code = request.args.get(
- 'widget', '<div>Welcome to your dashboard!</div>')
+ widget_code = escape(request.args.get(
+ 'widget', '<div>Welcome to your dashboard!</div>'))
return render_template('dashboard.html', widget_code=widget_code)📝 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.
| widget_code = request.args.get( | |
| 'widget', '<div>Welcome to your dashboard!</div>') | |
| return render_template('dashboard.html', widget_code=widget_code) | |
| from markupsafe import escape | |
| @app.route('/dashboard') | |
| def dashboard(): | |
| # Simulate user-customizable widget code (camouflaged as a feature) | |
| widget_code = escape(request.args.get( | |
| 'widget', '<div>Welcome to your dashboard!</div>')) | |
| return render_template('dashboard.html', widget_code=widget_code) |
🤖 Prompt for AI Agents
In app/app.py around lines 9 to 11, the user input from the 'widget' query
parameter is passed directly to the template and rendered unsafely, causing an
XSS vulnerability. To fix this, sanitize the 'widget_code' input before passing
it to the template by either validating it against allowed content or using an
HTML sanitizer library to remove unsafe tags and attributes. Avoid using the
template's |safe filter on unsanitized input.
| ## Technical Implementation | ||
|
|
||
|  | ||
| - Flask backend with a `/dashboard` route | ||
| - Jinja2 template renders user-provided widget code | ||
| - Widget code is injected into the dashboard at runtime | ||
|
|
There was a problem hiding this comment.
🛠️ Refactor suggestion
Add security considerations section.
Given the XSS vulnerability in the current implementation, the documentation should include security considerations.
Consider adding a security section:
## Technical Implementation
- Flask backend with a `/dashboard` route
- Jinja2 template renders user-provided widget code
- Content is dynamically injected into the dashboard at runtime
+## Security Considerations
+
+- User input should be sanitized to prevent XSS attacks
+- Consider implementing Content Security Policy (CSP) headers
+- Validate and whitelist allowed HTML tags and attributes📝 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.
| ## Technical Implementation | |
|  | |
| - Flask backend with a `/dashboard` route | |
| - Jinja2 template renders user-provided widget code | |
| - Widget code is injected into the dashboard at runtime | |
| ## Technical Implementation | |
| - Flask backend with a `/dashboard` route | |
| - Jinja2 template renders user-provided widget code | |
| - Content is dynamically injected into the dashboard at runtime | |
| ## Security Considerations | |
| - User input should be sanitized to prevent XSS attacks | |
| - Consider implementing Content Security Policy (CSP) headers | |
| - Validate and whitelist allowed HTML tags and attributes |
🧰 Tools
🪛 LanguageTool
[grammar] ~24-~24: This phrase is duplicated. You should probably use “widget code” only once.
Context: ...- Jinja2 template renders user-provided widget code - Widget code is injected into the dashboard at runti...
(PHRASE_REPETITION)
🤖 Prompt for AI Agents
In README.md around lines 21 to 26, add a new section titled "Security
Considerations" after the "Technical Implementation" section. In this section,
describe the potential XSS vulnerability due to rendering user-provided widget
code with Jinja2 and advise on best practices to mitigate this risk, such as
sanitizing inputs or using safe rendering methods. This will inform users of the
security implications and recommended precautions.
This PR adds the requested feature implementation.
Summary by CodeRabbit
New Features
Documentation