# Ginxsom Blossom Server Implementation Status

This document tracks the implementation status of ginxsom, a high-performance FastCGI-based Blossom server designed to work with nginx.

## Architecture Overview

- **nginx**: Handles static file serving (GET /<sha256>) for maximum performance
- **FastCGI Application**: Handles authenticated operations, metadata queries, uploads
- **SQLite Database**: Stores blob metadata and server configuration
- **File Storage**: Flat directory structure in `blobs/` directory

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## BUD-01: Blob Retrieval ✅ **COMPLETE**

### Infrastructure & Database
- [x] Create directory structure (`blobs/`, `db/`, `logs/`)
- [x] SQLite schema with `blobs` table (sha256, size, type, uploaded_at, uploader_pubkey, filename)
- [x] Database initialization scripts and proper indexes

### GET /<sha256> Endpoint
- [x] nginx static file serving with extension support (.txt, .jpg, .png, etc.)
- [x] Extension fallback via `try_files` directive
- [x] Proper MIME type detection and headers
- [x] Cache headers (Cache-Control, immutable)
- [x] 404 handling for missing blobs

### HEAD /<sha256> Endpoint  
- [x] FastCGI metadata handler
- [x] Database metadata queries
- [x] Proper HTTP headers (Content-Type, Content-Length)
- [x] SHA-256 extraction from URL paths
- [x] 404 responses for missing blobs

### Testing Status
- [x] File serving works with all supported extensions
- [x] HEAD requests return correct metadata
- [x] 404 responses for missing files
- [ ] Performance testing with large files

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## BUD-02: File Upload & Authentication ✅ **COMPLETE**

### Nostr Authentication System
- [x] nostr_core_lib integration and compilation
- [x] secp256k1 context initialization (CRITICAL BUG FIXED)
- [x] Authentication functions:
  - [x] `parse_authorization_header()` - Extract JSON from "Nostr base64(event)"
  - [x] `validate_blossom_event()` - Validate kind 24242 events
  - [x] `authenticate_request()` - Main authentication orchestrator
- [x] Enhanced error handling with specific error types (event_expired, invalid_signature, etc.)
- [x] API refactoring - upgraded from low-level crypto to `nostr_crypto_init()` API

### PUT /upload Endpoint
- [x] Authorization header parsing and validation
- [x] File upload streaming to temporary location
- [x] SHA-256 hash calculation during upload
- [x] Hash validation against authorization
- [x] File permissions (644) for nginx serving
- [x] Database metadata storage (uploader_pubkey, filename)
- [x] Blob descriptor JSON response

### GET /list/<pubkey> Endpoint
- [x] Extract pubkey from URL path
- [x] Database queries for user's blobs
- [x] Optional authorization with kind 24242 event validation
- [x] Support for `since`/`until` query parameters
- [x] JSON array responses with blob descriptors

### DELETE /<sha256> Endpoint
- [x] SHA-256 extraction from URL
- [x] Required authorization with kind 24242 validation
- [x] Ownership verification (uploader_pubkey matching)
- [x] File and database cleanup
- [x] Proper error handling for missing files

### Testing Status
- [x] Upload with valid nostr authentication (HTTP 200)
- [x] Upload without authentication (proper error responses)
- [x] Hash mismatch validation (409 Conflict)
- [x] List endpoint returns proper JSON
- [x] Delete endpoint with ownership checks
- [x] File retrieval after upload working
- [ ] File size limit testing

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## BUD-03: Server List (User Server Lists) ⚪ **FOR CLIENTS, NOT SERVERS**

## BUD-04: Blob Mirroring ⚪ **PARTIAL** 

### Current Status
- [x] nginx endpoint configured (`PUT /mirror`)
- [x] FastCGI routing established
- [ ] URL downloading implementation
- [ ] Hash verification after download
- [ ] Authorization handling for mirroring
- [ ] Inter-server mirroring testing

---

## BUD-05: Media Optimization ⚪ **PARTIAL**

### Current Status  
- [x] nginx endpoint configured (`HEAD/PUT /media`)
- [x] FastCGI routing established
- [ ] Media processing libraries integration
- [ ] Optimization algorithms implementation
- [ ] Multi-format media handling
- [ ] Optimization pipeline testing

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## BUD-06: Upload Requirements ⚪ **NOT IMPLEMENTED**

### HEAD /upload Pre-flight Validation
- [ ] `HEAD /upload` endpoint implementation
- [ ] Client header parsing (X-SHA-256, X-Content-Length, X-Content-Type)
- [ ] Pre-flight validation without file transfer:
  - [ ] SHA-256 format validation
  - [ ] File size limit checking
  - [ ] MIME type restrictions
  - [ ] Authentication validation
  - [ ] Duplicate detection
  - [ ] Banned hash checking
- [ ] Proper HTTP status codes (200, 400, 401, 403, 411, 413, 415)
- [ ] X-Reason headers for error messages

### Upload Policy Configuration
- [ ] Server configuration system
- [ ] Maximum file size limits
- [ ] Allowed MIME type restrictions
- [ ] Rate limiting implementation
- [ ] DOS protection benefits

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## BUD-07: Payment Integration ⚪ **NOT IMPLEMENTED**

*Optional feature - not currently planned*

- [ ] 402 Payment Required responses
- [ ] Lightning payment support
- [ ] Cashu payment integration
- [ ] Payment verification flows

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## BUD-08: NIP-94 Metadata ⚪ **NOT IMPLEMENTED**

*Optional feature - not currently planned*

- [ ] NIP-94 tag generation
- [ ] Extended blob descriptor responses
- [ ] Magnet link generation
- [ ] Metadata compatibility testing

---

## BUD-09: Content Reporting ⚪ **PARTIAL**

### Current Status
- [x] nginx endpoint configured (`PUT /report`)
- [x] FastCGI routing established
- [ ] NIP-56 report event handling
- [ ] Moderation interface
- [ ] Content filtering implementation
- [ ] Reporting workflow testing