LinkDesk/frontend/docs/task-18-implementation-summary.md

Task 18: User Profile Management with Avatar Upload and Password Change

Implementation Summary

This document summarizes the implementation of user profile management features including avatar upload and password change functionality.

Completed Subtasks

18.1: Add avatar field to user model and create upload endpoints ✅

Backend Changes:

• Added avatar_url field to User model (backend/models/user.py)
• Created migration script (backend/migrate_avatar_field.py)
• Added avatar upload endpoint: POST /users/me/avatar
• Added avatar removal endpoint: DELETE /users/me/avatar
• Added password change endpoint: PUT /users/me/password
• Updated UserResponse schema to include avatar_url field
• Added UserPasswordChange schema for password change requests

Features:

• Image validation (format: jpg, jpeg, png, gif, webp; max size: 5MB)
• Automatic image processing (resize and crop to 200x200)
• Unique filename generation to prevent conflicts
• Storage in backend/uploads/avatars directory
• Old avatar cleanup when uploading new one

18.2: Create password change endpoint ✅

Backend Changes:

• Endpoint: PUT /users/me/password
• Requires current password for authentication
• Validates new password (minimum 8 characters)
• Hashes password with bcrypt before storing
• Returns success message after update

18.3: Create avatar upload component ✅

Frontend Component: frontend/src/components/user/AvatarUpload.vue

Features:

• Drag-and-drop file upload
• Click-to-browse file selection
• Real-time image preview
• Client-side validation (format and size)
• Upload progress indicator
• Current avatar display with remove button
• Initials-based placeholder when no avatar
• Success/error toast notifications

UI Components Created:

• Progress component (frontend/src/components/ui/progress/Progress.vue)

18.4: Create password change component ✅

Frontend Component: frontend/src/components/user/PasswordChangeForm.vue

Features:

• Current password field with show/hide toggle
• New password field with show/hide toggle
• Confirm password field with real-time matching validation
• Password requirements display with visual indicators:
  • At least 8 characters
  • One uppercase letter
  • One lowercase letter
  • One number
  • One special character
• Password strength indicator (weak, medium, strong)
• Real-time validation for all fields
• Submit button disabled until all validations pass
• Success toast after password change
• Clear error messages for validation failures

18.5: Update profile page with avatar and password management ✅

Updated Component: frontend/src/views/ProfileView.vue

Changes:

• Added avatar management section with AvatarUpload component
• Added password management card with PasswordChangeForm component
• Updated profile header to display user avatar
• Added section separators for visual organization
• Implemented avatar update and removal handlers
• Implemented password change handler

Updated Component: frontend/src/components/layout/AppHeader.vue

Changes:

• Updated user menu trigger to display avatar instead of icon
• Added Avatar component with image display
• Shows user initials as fallback
• Displays avatar from backend URL

18.6: Update user service and store for avatar and password ✅

Service Updates: frontend/src/services/user.ts

New Methods:

• uploadAvatar(file: File): Upload user avatar image
• removeAvatar(): Remove user avatar
• changePassword(passwordData): Change user password

Type Updates: frontend/src/types/auth.ts

Changes:

• Added avatar_url?: string | null to User interface

Model Updates: backend/models/__init__.py

Changes:

• Added Notification and Activity model imports to fix database creation

API Endpoints

Avatar Management

POST   /users/me/avatar     - Upload avatar (multipart/form-data)
DELETE /users/me/avatar     - Remove avatar

Password Management

PUT    /users/me/password   - Change password

Database Schema Changes

Users Table

ALTER TABLE users ADD COLUMN avatar_url TEXT;

File Structure

backend/
├── models/
│   └── user.py                          # Added avatar_url field
├── routers/
│   └── users.py                         # Added avatar and password endpoints
├── schemas/
│   └── user.py                          # Added avatar_url to UserResponse
├── uploads/
│   └── avatars/                         # Avatar storage directory
└── migrate_avatar_field.py              # Migration script

frontend/
├── src/
│   ├── components/
│   │   ├── user/
│   │   │   ├── AvatarUpload.vue         # New component
│   │   │   └── PasswordChangeForm.vue   # New component
│   │   ├── layout/
│   │   │   └── AppHeader.vue            # Updated with avatar display
│   │   └── ui/
│   │       └── progress/
│   │           ├── Progress.vue         # New component
│   │           └── index.ts
│   ├── services/
│   │   └── user.ts                      # Added avatar and password methods
│   ├── types/
│   │   └── auth.ts                      # Added avatar_url to User type
│   └── views/
│       └── ProfileView.vue              # Updated with avatar and password sections
└── docs/
    └── task-18-implementation-summary.md

Testing Checklist

Backend Testing

• Test avatar upload with valid image formats
• Test avatar upload with invalid formats (should fail)
• Test avatar upload with oversized files (should fail)
• Test avatar removal
• Test password change with correct current password
• Test password change with incorrect current password (should fail)
• Test password change with weak password (should fail)
• Verify avatar URL is returned in user profile responses
• Verify old avatar is deleted when uploading new one

Frontend Testing

• Test avatar upload via drag-and-drop
• Test avatar upload via file browser
• Test avatar preview before upload
• Test avatar upload progress indicator
• Test avatar removal
• Test avatar display in profile page
• Test avatar display in app header
• Test avatar display in user menu
• Test password change with all validations
• Test password strength indicator
• Test password requirements display
• Test password matching validation
• Test show/hide password toggles
• Test error handling for all operations
• Test success notifications

Known Issues

TypeScript Type Caching

• TypeScript may cache the old User type without avatar_url
• Solution: Restart TypeScript server or reload VS Code window
• The type definition has been updated correctly in frontend/src/types/auth.ts

Security Considerations

• Avatar uploads are validated for file type and size
• Images are processed server-side to prevent malicious content
• Passwords are hashed with bcrypt before storage
• Current password is required for password changes
• Password strength requirements are enforced
• File uploads use unique filenames to prevent conflicts
• Old avatars are cleaned up to prevent storage bloat

Future Enhancements

• Add image cropping interface for avatar upload
• Add avatar image optimization (compression)
• Add support for more image formats (SVG, AVIF)
• Add password history to prevent reuse
• Add two-factor authentication
• Add email verification for password changes
• Add avatar upload from URL
• Add avatar templates/presets
• Add password strength meter with more detailed feedback
• Add "forgot password" functionality

Requirements Satisfied

This implementation satisfies the following requirements from the spec:

• Requirement 1.2.1: Profile page accessible to all registered users
• Requirement 1.2.2: Allow users to upload profile avatar image
• Requirement 1.2.3: Accept common image formats for avatars
• Requirement 1.2.4: Resize and crop uploaded avatars to standard size
• Requirement 1.2.5: Limit avatar file size to maximum of 5MB
• Requirement 1.2.6: Display user's avatar in application header and profile page
• Requirement 1.2.7: Provide password change form requiring current password
• Requirement 1.2.8: Require current password for authentication
• Requirement 1.2.9: Require new password to be entered twice for confirmation
• Requirement 1.2.10: Validate new password meets minimum security requirements
• Requirement 1.2.11: Display password strength indicators during password entry
• Requirement 1.2.12: Display confirmation message when password is successfully changed
• Requirement 1.2.13: Allow users to remove their avatar and revert to default placeholder