651 lines
7.6 KiB
Markdown
651 lines
7.6 KiB
Markdown
# BZOD Architecture Guide
|
|
|
|
Version: v0.5.1
|
|
|
|
---
|
|
|
|
# Overview
|
|
|
|
BZOD is a self-hosted multi-user URL management platform written in Rust.
|
|
|
|
The platform combines:
|
|
|
|
* URL shortening
|
|
* Landing pages
|
|
* QR code generation
|
|
* Analytics
|
|
* User management
|
|
* Moderation
|
|
* Audit logging
|
|
* Backup & restore
|
|
* Disaster recovery
|
|
|
|
into a single deployable binary powered entirely by SQLite.
|
|
|
|
BZOD is designed around operational simplicity, tenant isolation, and long-term maintainability.
|
|
|
|
---
|
|
|
|
# Architectural Goals
|
|
|
|
The primary design goals are:
|
|
|
|
1. Self-hosted first
|
|
2. SQLite-first architecture
|
|
3. Multi-user operation
|
|
4. Tenant isolation
|
|
5. Simple deployment
|
|
6. Minimal dependencies
|
|
7. Easy backup and recovery
|
|
8. No vendor lock-in
|
|
|
|
---
|
|
|
|
# High-Level Architecture
|
|
|
|
```text
|
|
┌─────────────┐
|
|
│ Browser │
|
|
└──────┬──────┘
|
|
│
|
|
▼
|
|
┌────────────────────┐
|
|
│ Axum Router │
|
|
└─────────┬──────────┘
|
|
│
|
|
┌────────────────────┼────────────────────┐
|
|
│ │ │
|
|
▼ ▼ ▼
|
|
|
|
users.db system.db User Databases
|
|
|
|
Users Global Slugs content.db
|
|
Sessions Audit Events analytics.db
|
|
Quotas Moderation
|
|
API Tokens Settings
|
|
```
|
|
|
|
---
|
|
|
|
# Runtime Components
|
|
|
|
## Web Layer
|
|
|
|
Location:
|
|
|
|
```text
|
|
src/web/
|
|
```
|
|
|
|
Responsible for:
|
|
|
|
* HTTP routing
|
|
* Dashboard rendering
|
|
* Form handling
|
|
* Authentication checks
|
|
* Redirect handling
|
|
* REST API endpoints
|
|
|
|
Major modules:
|
|
|
|
```text
|
|
admin.rs
|
|
api.rs
|
|
pages.rs
|
|
redirect.rs
|
|
qr.rs
|
|
system.rs
|
|
multi_user.rs
|
|
routes.rs
|
|
```
|
|
|
|
---
|
|
|
|
## Authentication Layer
|
|
|
|
Location:
|
|
|
|
```text
|
|
src/auth/
|
|
```
|
|
|
|
Responsible for:
|
|
|
|
* Password hashing
|
|
* Session validation
|
|
* Cookie management
|
|
* CSRF protection
|
|
* Authorization
|
|
|
|
Modules:
|
|
|
|
```text
|
|
csrf.rs
|
|
middleware.rs
|
|
password.rs
|
|
session.rs
|
|
```
|
|
|
|
Authentication technologies:
|
|
|
|
* Argon2id password hashing
|
|
* Session cookies
|
|
* CSRF tokens
|
|
* RBAC checks
|
|
|
|
---
|
|
|
|
## Database Layer
|
|
|
|
Location:
|
|
|
|
```text
|
|
src/db/
|
|
```
|
|
|
|
Responsible for:
|
|
|
|
* Schema creation
|
|
* Migrations
|
|
* Database access
|
|
* Analytics storage
|
|
* User management
|
|
|
|
Modules:
|
|
|
|
```text
|
|
admin.rs
|
|
analytics.rs
|
|
audit_events.rs
|
|
content.rs
|
|
migrations.rs
|
|
sqlite.rs
|
|
users.rs
|
|
```
|
|
|
|
---
|
|
|
|
# Database Architecture
|
|
|
|
BZOD uses multiple SQLite databases rather than a single monolithic database.
|
|
|
|
This approach provides:
|
|
|
|
* Better isolation
|
|
* Easier backup
|
|
* Simpler disaster recovery
|
|
* Reduced risk of cross-user data leakage
|
|
|
|
---
|
|
|
|
## users.db
|
|
|
|
Purpose:
|
|
|
|
Central identity and account database.
|
|
|
|
Contains:
|
|
|
|
```text
|
|
users
|
|
sessions
|
|
api_tokens
|
|
quotas
|
|
```
|
|
|
|
Stores:
|
|
|
|
* User accounts
|
|
* Password hashes
|
|
* Session records
|
|
* API tokens
|
|
* Quota information
|
|
|
|
---
|
|
|
|
## system.db
|
|
|
|
Purpose:
|
|
|
|
Global platform metadata.
|
|
|
|
Contains:
|
|
|
|
```text
|
|
global_slugs
|
|
audit_events
|
|
moderation_events
|
|
reserved_slugs
|
|
settings
|
|
slug_history
|
|
```
|
|
|
|
Stores:
|
|
|
|
* Global slug ownership
|
|
* Audit records
|
|
* Moderation actions
|
|
* Platform settings
|
|
* Slug transfers
|
|
|
|
---
|
|
|
|
## Tenant Databases
|
|
|
|
Each user receives isolated databases.
|
|
|
|
Directory structure:
|
|
|
|
```text
|
|
users/
|
|
└── <user_id>/
|
|
├── content.db
|
|
└── analytics.db
|
|
```
|
|
|
|
---
|
|
|
|
### content.db
|
|
|
|
Stores:
|
|
|
|
* URLs
|
|
* Landing pages
|
|
* Metadata
|
|
|
|
---
|
|
|
|
### analytics.db
|
|
|
|
Stores:
|
|
|
|
* Visits
|
|
* Referrers
|
|
* QR scans
|
|
* Browser information
|
|
* Analytics aggregates
|
|
|
|
---
|
|
|
|
# Multi-User Architecture
|
|
|
|
BZOD v0.5.0 introduced complete tenant isolation.
|
|
|
|
Each user owns:
|
|
|
|
```text
|
|
content.db
|
|
analytics.db
|
|
```
|
|
|
|
Users cannot directly access:
|
|
|
|
* Other users' URLs
|
|
* Other users' landing pages
|
|
* Other users' analytics
|
|
|
|
The administrator accesses all tenants through controlled administrative interfaces.
|
|
|
|
---
|
|
|
|
# Global Slug Namespace
|
|
|
|
All public URLs are tracked in:
|
|
|
|
```text
|
|
system.db -> global_slugs
|
|
```
|
|
|
|
Purpose:
|
|
|
|
Prevent collisions across users.
|
|
|
|
Example:
|
|
|
|
```text
|
|
User A owns:
|
|
|
|
https://bzo.in/!office
|
|
|
|
User B cannot create:
|
|
|
|
https://bzo.in/!office
|
|
```
|
|
|
|
This guarantees global uniqueness.
|
|
|
|
---
|
|
|
|
# Request Lifecycle
|
|
|
|
## URL Redirect
|
|
|
|
Request:
|
|
|
|
```text
|
|
GET /abc123
|
|
```
|
|
|
|
Flow:
|
|
|
|
```text
|
|
Browser
|
|
↓
|
|
Axum Router
|
|
↓
|
|
global_slugs lookup
|
|
↓
|
|
Locate owner database
|
|
↓
|
|
Resolve URL
|
|
↓
|
|
Record analytics
|
|
↓
|
|
302 Redirect
|
|
```
|
|
|
|
---
|
|
|
|
## Landing Page
|
|
|
|
Request:
|
|
|
|
```text
|
|
GET /p/demo
|
|
```
|
|
|
|
Flow:
|
|
|
|
```text
|
|
Browser
|
|
↓
|
|
Router
|
|
↓
|
|
global_slugs lookup
|
|
↓
|
|
Tenant content.db lookup
|
|
↓
|
|
Render page
|
|
```
|
|
|
|
---
|
|
|
|
## QR Generation
|
|
|
|
Request:
|
|
|
|
```text
|
|
GET /api/qr/demo.svg
|
|
```
|
|
|
|
Flow:
|
|
|
|
```text
|
|
Router
|
|
↓
|
|
global_slugs lookup
|
|
↓
|
|
Generate QR
|
|
↓
|
|
Return SVG
|
|
```
|
|
|
|
---
|
|
|
|
# Analytics Pipeline
|
|
|
|
Location:
|
|
|
|
```text
|
|
src/analytics/
|
|
```
|
|
|
|
Components:
|
|
|
|
```text
|
|
events.rs
|
|
queue.rs
|
|
worker.rs
|
|
aggregate.rs
|
|
location.rs
|
|
```
|
|
|
|
Responsibilities:
|
|
|
|
* Visit tracking
|
|
* QR tracking
|
|
* Browser detection
|
|
* Referrer parsing
|
|
* Aggregation
|
|
|
|
---
|
|
|
|
# Background Jobs
|
|
|
|
Location:
|
|
|
|
```text
|
|
src/jobs/
|
|
```
|
|
|
|
Jobs:
|
|
|
|
## aggregate.rs
|
|
|
|
Analytics aggregation.
|
|
|
|
## backup.rs
|
|
|
|
Automated backups.
|
|
|
|
## expiry.rs
|
|
|
|
Expired content cleanup.
|
|
|
|
## retention.rs
|
|
|
|
Retention policy enforcement.
|
|
|
|
## healthcheck.rs
|
|
|
|
System health validation.
|
|
|
|
## quota_reconcile.rs
|
|
|
|
Quota consistency verification.
|
|
|
|
---
|
|
|
|
# Services Layer
|
|
|
|
Location:
|
|
|
|
```text
|
|
src/services/
|
|
```
|
|
|
|
Purpose:
|
|
|
|
Business logic abstraction.
|
|
|
|
Modules:
|
|
|
|
```text
|
|
api_keys.rs
|
|
audit.rs
|
|
bulk.rs
|
|
landing_pages.rs
|
|
qr.rs
|
|
shortener.rs
|
|
```
|
|
|
|
This layer separates business rules from HTTP handlers.
|
|
|
|
---
|
|
|
|
# CLI Architecture
|
|
|
|
Location:
|
|
|
|
```text
|
|
src/cli/
|
|
```
|
|
|
|
The CLI and Web UI share the same internal services.
|
|
|
|
Examples:
|
|
|
|
```bash
|
|
bzod create-admin
|
|
bzod create-user
|
|
bzod backup
|
|
bzod restore
|
|
bzod doctor
|
|
bzod migrate
|
|
```
|
|
|
|
This avoids duplicate logic between administration methods.
|
|
|
|
---
|
|
|
|
# Security Model
|
|
|
|
Security mechanisms:
|
|
|
|
## Authentication
|
|
|
|
* Argon2id password hashes
|
|
* Session cookies
|
|
|
|
## Authorization
|
|
|
|
* RBAC
|
|
* Administrative permission checks
|
|
|
|
## CSRF Protection
|
|
|
|
* Form tokens
|
|
* Request validation
|
|
|
|
## Tenant Isolation
|
|
|
|
* Separate databases
|
|
* Controlled access paths
|
|
|
|
## Audit Logging
|
|
|
|
All critical operations are recorded.
|
|
|
|
Examples:
|
|
|
|
* Login attempts
|
|
* User creation
|
|
* Password resets
|
|
* Slug transfers
|
|
* Moderation actions
|
|
|
|
---
|
|
|
|
# Backup & Recovery
|
|
|
|
BZOD is designed for SQLite-first recovery.
|
|
|
|
Backup targets:
|
|
|
|
```text
|
|
users.db
|
|
system.db
|
|
admin/
|
|
users/*
|
|
```
|
|
|
|
Capabilities:
|
|
|
|
* Full backups
|
|
* Restore operations
|
|
* Upgrade migrations
|
|
* Disaster recovery validation
|
|
|
|
---
|
|
|
|
# Testing Architecture
|
|
|
|
Location:
|
|
|
|
```text
|
|
tests/
|
|
```
|
|
|
|
Coverage includes:
|
|
|
|
* Authentication
|
|
* Authorization
|
|
* User management
|
|
* Analytics
|
|
* Backups
|
|
* Disaster recovery
|
|
* Routing
|
|
* Security
|
|
* Concurrency
|
|
* Upgrade validation
|
|
* Multi-user isolation
|
|
|
|
v0.5.0 includes more than 90 automated tests.
|
|
|
|
---
|
|
|
|
# Deployment Models
|
|
|
|
Supported deployments:
|
|
|
|
## Native
|
|
|
|
```bash
|
|
cargo build --release
|
|
./bzod serve
|
|
```
|
|
|
|
## Systemd
|
|
|
|
```text
|
|
bzod.service
|
|
```
|
|
|
|
## Docker
|
|
|
|
```text
|
|
Dockerfile
|
|
docker-compose.yml
|
|
```
|
|
|
|
---
|
|
|
|
# Future Architecture Direction
|
|
|
|
Planned for future releases:
|
|
|
|
* Geo analytics
|
|
* OpenAPI generation
|
|
* SSO integration
|
|
* Multi-organization support
|
|
* Advanced reporting
|
|
* Distributed analytics aggregation
|
|
|
|
---
|
|
|
|
# Summary
|
|
|
|
BZOD v0.5.0 is built around a simple principle:
|
|
|
|
> Keep deployment simple, keep data local, keep users isolated, and keep recovery easy.
|
|
|
|
The platform achieves this through:
|
|
|
|
* Rust
|
|
* Axum
|
|
* SQLite
|
|
* Tenant isolation
|
|
* Multi-database architecture
|
|
* Strong automated validation
|
|
* Operational simplicity
|