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Cryptocurrency Payment System Documentation
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===========================================
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========================================
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Cryptocurrency Payment System
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========================================
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This document provides detailed information about the cryptocurrency payment system in Make Post Sell, including wallet management, security considerations, and operational procedures.
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Introduction
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------------
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The cryptocurrency payment system in Make Post Sell works like a digital cash register that can accept Monero (and eventually other cryptocurrencies). Here's the key concepts:
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**Why You Can't Use External Wallets (like Cake Wallet):**
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The system needs to generate a unique address for each customer payment (like giving each customer a different invoice number). Only the wallet owner can create these subaddresses, and external wallets can't provide this functionality via API.
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**How Money Flows:**
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1. Customer pays → Your hot wallet receives it
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2. Payment is detected and order is fulfilled automatically
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3. You manually move funds to cold storage periodically
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**Security Reality:**
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- Your server holds the wallet keys (like leaving cash register unlocked)
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- If server is hacked = funds at risk
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- Best practice: Keep minimal funds, move to cold storage often
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**The Architecture:**
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- **monero-wallet-rpc**: The "cash register" software
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- **crypto_watcher**: The "cashier" watching for payments
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- **CryptoPayment**: The "receipt book" tracking who paid what
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Think of it like running a physical store - you need your own cash register (can't use someone else's), you periodically empty it to a safe (cold wallet), and you keep receipts (database records) of all transactions.
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**Production-Ready Multi-Cryptocurrency Commerce Platform**
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Overview
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--------
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========
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Make Post Sell supports cryptocurrency payments through a modular system designed to handle multiple coins. Currently, Monero (XMR) is implemented, with the architecture ready for Bitcoin, Litecoin, and other cryptocurrencies.
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Make Post Sell provides a comprehensive cryptocurrency payment system that enables shops to accept Monero (XMR) and Dogecoin (DOGE) payments with enterprise-grade reliability, automatic fund management, and comprehensive monitoring.
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**Key Features:**
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- ✅ **Multi-cryptocurrency support** - XMR and DOGE with unified architecture
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- ✅ **Comprehensive state machine** - 20+ payment states with robust error handling
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- ✅ **Automatic fund management** - Auto-sweep to cold storage after confirmation
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- ✅ **Advanced monitoring** - Centralized logging with payment context
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- ✅ **Recovery mechanisms** - Tools for stuck payments and edge cases
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- ✅ **Double-spend protection** - Transaction validation and duplicate detection
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- ✅ **Production testing** - 300+ automated tests ensuring reliability
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Architecture
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------------
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============
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The crypto payment system consists of several components:
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Payment State Machine
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----------------------
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1. **CryptoPayment Model** - Database model tracking payment details
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2. **Crypto Client Library** - RPC client for communicating with wallet daemons
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3. **Crypto Views** - Web endpoints for payment flow
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4. **Crypto Watcher** - Background service monitoring blockchain for payments
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5. **Auto-Sweep** - Automatically transfers funds to cold storage after each payment
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The system uses a comprehensive state machine to track payments through their lifecycle:
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How Payments Work
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-----------------
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**Core States:**
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- ``pending`` - Payment created, waiting for funds
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- ``received`` - Funds detected, waiting for confirmations
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- ``confirmed`` - Payment confirmed and processed
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- ``confirmed_overpay`` - Overpayment confirmed, refund initiated
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1. Customer selects "Pay with Crypto" at checkout
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2. System generates a unique subaddress for the payment
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3. Current exchange rate is locked for the quote duration
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4. Customer sends payment to the generated address
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5. Crypto watcher monitors for incoming transfers
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6. Order is fulfilled when payment is confirmed
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7. **Funds are immediately swept to shop's cold wallet** (keeps only 0.001 XMR for fees)
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**Refund States:**
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- ``latepay_refunded_complete`` - Late payment fully refunded
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- ``underpaid_refunded_complete`` - Underpayment fully refunded
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- ``out_of_stock_refunded_complete`` - Out of stock, fully refunded
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Per-Shop Wallet Configuration
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-----------------------------
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**Terminal States:**
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- ``expired`` - Payment window closed
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- ``cancelled`` - Payment cancelled by user
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- ``latepay_not_refunded`` - Late payment, no refund available
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Each shop can have its own hot wallet account and cold storage address:
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Each state transition is logged with full context for debugging and monitoring.
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1. **Hot Wallet Account**: Automatically assigned when shop configures a cold wallet
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2. **Cold Wallet Address**: Shop owner's secure wallet for receiving swept funds
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To enable Monero payments for a shop:
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1. Go to Shop Settings
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2. Enter your cold wallet address in the Monero section
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3. System automatically assigns a unique account index (one-time)
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4. Shop is now ready to accept Monero payments
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**Changing Cold Wallet Address**:
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- You can update your cold wallet address anytime
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- Your account index stays the same (no funds lost)
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- Future sweeps will go to the new address
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- Existing balance (0.001 XMR reserve) remains available
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**Security Design**:
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- Account indices are hidden from users to prevent confusion
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- Each shop gets one permanent account index (doesn't change with cold wallet updates)
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- Each shop's funds are isolated in separate accounts
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- **Auto-sweep is mandatory** - funds move to cold storage immediately after confirmation
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- Hot wallet never holds more than 0.001 XMR per account
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Transaction Lifecycle Example
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-----------------------------
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Let's follow a complete user journey for a $10 digital product purchase:
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**Customer Journey Begins**
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**1. Product Discovery**
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- Customer visits shop.example.com
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- Browses products, finds a $10 digital guide
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- Clicks "Add to Cart"
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- Cart shows: 1 item, $10.00
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**2. Checkout Process**
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- Customer clicks "Checkout"
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- Enters email: customer@email.com
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- Sees payment options: "Pay with Stripe" or "Pay with Monero"
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- Chooses "Pay with Monero"
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**3. Payment Quote Generation** (T+0 seconds)
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- System fetches current XMR/USD rate: 1 XMR = $300 USD
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- Calculates price: $10 ÷ $300 = 0.03333333 XMR
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- Displays to customer:
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```
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Amount Due: 0.03333333 XMR
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Exchange Rate: $300.00/XMR
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Quote Valid For: 15 minutes
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```
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**4. Payment Address Generation** (T+1 second)
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- System assigns subaddress from shop's account (e.g., account 5, subaddress 147)
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- Displays QR code and address: 87BqQYkugEzh6Tg3gmfDPD6u7w6rNwJrTZXSdWgMHMfT...
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- CryptoPayment record created:
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- Shop's cold wallet stored for later sweep
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- Expected amount: 0.03333333 XMR
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- Quote expiry timestamp set
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**5. Customer Sends Payment** (T+2 minutes)
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- Customer opens mobile Monero wallet
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- Scans QR code or copies address
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- Enters amount: 0.03333333 XMR
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- Confirms transaction (network fee ~0.00001 XMR)
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- Transaction broadcasts to Monero network
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**6. Payment Detection** (T+2-3 minutes)
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- crypto_watcher polls every 20 seconds
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- Detects incoming transaction in mempool
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- Status changes: "pending" → "received"
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- Customer sees: "Payment received! Awaiting 10 confirmations..."
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- Progress bar shows: 0/10 confirmations
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**7. Confirmation Progress** (T+2 to T+22 minutes)
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- Monero blocks average 2 minutes each
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- Customer refreshes page, sees progress:
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- 2 confirmations (T+6 min): "2/10 confirmations"
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- 5 confirmations (T+12 min): "5/10 confirmations"
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- 8 confirmations (T+18 min): "8/10 confirmations"
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**8. Payment Fully Confirmed** (T+22 minutes)
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- 10th confirmation reached
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- Status changes: "received" → "confirmed"
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- Customer sees: "Payment confirmed! ✓"
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- Invoice finalized:
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- Digital download link appears
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- Email sent: "Your purchase from Shop Name"
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- Shop owner notified: "New sale: $10.00 (0.03333333 XMR)"
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**9. Customer Downloads Product** (T+23 minutes)
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- Customer clicks download link
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- Gets their digital guide PDF
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- Happy customer, transaction complete from their perspective
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**Behind the Scenes - Shop Gets Paid**
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**10. Automatic Sweep Triggers** (T+22 minutes, 5 seconds)
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- Immediately after confirmation, auto-sweep initiates
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- Balance check: Account 5 has 0.03333333 XMR
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- Sweep calculation: 0.03333333 - 0.001 (keep for fees) = 0.03233333 XMR
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- Transfer initiated to shop's cold wallet: 4A1s7n9...
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**11. Sweep Complete** (T+24 minutes)
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- Sweep transaction confirmed
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- Hot wallet account 5 balance: 0.001 XMR (ready for next customer)
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- Shop's cold wallet receives: 0.03233333 XMR
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- At $300/XMR, shop owner has $9.70 (after fee reserve)
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**Total Timeline**:
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- Customer experience: ~23 minutes (browse to download)
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- Full settlement: ~24 minutes (payment to cold storage)
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**Financial Summary**:
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- Product price: $10.00
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- Customer paid: 0.03333333 XMR ($10.00)
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- Network fee: ~0.00001 XMR ($0.003)
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- Shop received: 0.03233333 XMR ($9.70)
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- Fee reserve kept: 0.001 XMR ($0.30)
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**Key Points**:
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- Customer experience is smooth - they get their product in ~23 minutes
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- Shop gets paid automatically with no manual intervention
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- Hot wallet exposure: maximum 22 minutes, only 0.033 XMR
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- Each shop's funds stay completely isolated
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- System handles everything: quote, payment detection, fulfillment, sweep
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**What Could Go Wrong**:
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1. **Customer Underpays**: Sends 0.03 instead of 0.03333333 XMR
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- Payment detected but never confirms
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- Manual intervention needed or customer adds missing amount
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2. **Quote Expires**: Customer takes 20 minutes to send
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- Quote expired after 15 minutes
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- Customer needs new quote at potentially different rate
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3. **Network Congestion**: Monero network is busy
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- Confirmations take 3-4 minutes per block instead of 2
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- Customer waits longer but system handles it
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4. **Wrong Copy/Paste**: Customer sends to wrong address
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- Funds lost (no recovery possible)
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- Importance of QR codes to avoid this
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5. **Shop Misconfiguration**: Shop entered wrong cold wallet
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- Sweep succeeds but funds go to wrong wallet
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- Unrecoverable - emphasizes importance of testing
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Wallet Configuration
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--------------------
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**Creating a Wallet**
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For production use, create a dedicated wallet::
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# Create new wallet
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monero-wallet-cli --generate-new-wallet=/path/to/mps-wallet
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# IMPORTANT: Save the 25-word mnemonic seed securely!
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# This is your only way to recover funds if the wallet file is lost
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**Running the Wallet RPC**
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The wallet must be accessible via RPC. You have two options:
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**Option 1: Production Setup (Run Your Own Node)**
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This is the most secure and reliable setup::
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# Terminal 1: Start your own Monero node (daemon)
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# This downloads ~150GB blockchain and uses P2P to stay synced
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monerod --data-dir=/path/to/blockchain \
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--rpc-bind-ip=127.0.0.1 \
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--rpc-bind-port=18081 \
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--confirm-external-bind
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# Terminal 2: Start wallet RPC (after daemon syncs)
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monero-wallet-rpc \
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--rpc-bind-ip=127.0.0.1 \
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--rpc-bind-port=18083 \
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--disable-rpc-login \
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--wallet-file=/path/to/mps-wallet \
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--daemon-address=127.0.0.1:18081 \
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--trusted-daemon
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**Option 2: Development Setup (Use Remote Node)**
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Quicker to start but less private and relies on external service::
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|
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monero-wallet-rpc \
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--rpc-bind-ip=127.0.0.1 \
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--rpc-bind-port=18083 \
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--disable-rpc-login \
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--wallet-file=/path/to/mps-wallet \
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--daemon-address=node.moneroworld.com:18089 \
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--trusted-daemon
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**Using the Makefile**
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|
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The included Makefile provides convenient targets::
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# First time setup
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make monero-wallet-create # Create a new wallet
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# Production (your own node)
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make monero-node # Terminal 1: Start blockchain node
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make monero-wallet # Terminal 2: Start wallet RPC
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# Development (remote node)
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make monero-wallet-remote # Start wallet with public node
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# View all options
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make monero-full-stack # Shows complete setup instructions
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Security notes:
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- ``--disable-rpc-login`` is safe only when binding to localhost
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- For remote access, use ``--rpc-login username:password``
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- Running your own node ensures privacy and reliability
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- The daemon automatically uses P2P to find peers and stay synchronized
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|
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**Account Structure**
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|
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Monero wallets contain multiple accounts, each with many subaddresses:
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|
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- **Account 0** (default): Main receiving account
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- **Account 1+**: Can be used for organization (optional)
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- **Subaddresses**: Unique addresses generated per payment
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|
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The ``MPS_MONERO_ACCOUNT_INDEX`` environment variable (default: 0) specifies which account to use.
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Wallet Management
|
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-----------------
|
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|
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**Checking Balance**
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|
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View wallet balance and incoming payments::
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|
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# Via CLI (stop RPC first)
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monero-wallet-cli --wallet-file=/path/to/mps-wallet
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[wallet]: balance
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[wallet]: show_transfers
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|
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# Via RPC
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curl -X POST http://127.0.0.1:18083/json_rpc -d '
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{
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"jsonrpc":"2.0",
|
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"id":"0",
|
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"method":"get_balance",
|
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"params":{"account_index":0}
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}'
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|
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**Sending Funds (Hot Wallet Management)**
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|
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The hot wallet runs as a service with mandatory auto-sweep:
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|
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1. **Automatic Post-Payment Sweep**:
|
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|
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Every confirmed payment triggers an immediate sweep to the shop's cold wallet.
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Only 0.001 XMR remains for future transaction fees.
|
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|
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2. **Manual Sweep Commands** (for maintenance/recovery):
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|
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The crypto watcher includes automatic sweeping after each confirmed payment. For emergency situations or maintenance, administrators can use manual sweep tools that are integrated into the payment processing system and thoroughly tested.
|
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|
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**Cold Storage Best Practices**
|
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|
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1. **Minimize Hot Wallet Exposure**:
|
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- Keep only enough XMR for daily operations
|
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- Sweep excess funds to cold storage regularly
|
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|
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2. **Hardware Wallet Integration**:
|
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- Use a hardware wallet (Ledger/Trezor) for cold storage
|
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- Generate cold storage address offline
|
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|
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3. **Multi-signature Setup** (Advanced):
|
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- Use 2-of-3 multisig for large amounts
|
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- Requires multiple parties to authorize transfers
|
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|
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Security Considerations
|
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-----------------------
|
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|
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**Hot Wallet Risks**
|
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|
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The wallet on the server is a "hot wallet" with inherent risks:
|
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|
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- Server compromise = potential fund loss
|
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- No way to use external wallets (Cake Wallet, etc.) due to subaddress generation requirement
|
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- Must trust the server environment
|
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|
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**Mitigation Strategies**
|
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|
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1. **Access Controls**:
|
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|
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- Restrict RPC to localhost only
|
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- Use strong authentication if remote access needed
|
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- Monitor access logs
|
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|
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2. **Operational Security**:
|
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|
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- Regular security updates
|
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- Encrypted wallet file storage
|
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- Secure backup procedures
|
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- Audit trail for all transfers
|
||||
|
||||
3. **Monitoring**:
|
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|
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- Set up alerts for large incoming payments
|
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- Monitor wallet balance changes
|
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- Track unusual access patterns
|
||||
|
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Backup and Recovery
|
||||
-------------------
|
||||
|
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**Backup Requirements**
|
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|
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1. **Mnemonic Seed** (Critical):
|
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- 25-word recovery phrase
|
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- Store offline in multiple secure locations
|
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- Never store digitally on the server
|
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|
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2. **Wallet Files**:
|
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- Regular backups of wallet file
|
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- Include wallet.keys file
|
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- Encrypt backups
|
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|
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**Recovery Procedures**
|
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|
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From mnemonic seed::
|
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|
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monero-wallet-cli --restore-deterministic-wallet
|
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# Enter 25-word mnemonic
|
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# Specify restore height to speed up sync
|
||||
|
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From wallet file backup::
|
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|
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# Copy wallet and wallet.keys files
|
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cp backup/mps-wallet* /path/to/
|
||||
# Start normally
|
||||
|
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Troubleshooting
|
||||
---------------
|
||||
|
||||
**Common Issues**
|
||||
|
||||
1. **RPC Connection Failed**:
|
||||
- Check monero-wallet-rpc is running
|
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- Verify firewall allows localhost:18083
|
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- Check RPC URL in configuration
|
||||
|
||||
2. **Payments Not Detected**:
|
||||
- Ensure crypto_watcher is running
|
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- Check wallet sync status
|
||||
- Verify confirmations requirement
|
||||
|
||||
3. **Subaddress Generation Fails**:
|
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- Check wallet is not locked
|
||||
- Verify account index exists
|
||||
- Ensure RPC has wallet access
|
||||
|
||||
**Debug Commands**
|
||||
|
||||
Check wallet sync status::
|
||||
|
||||
curl -X POST http://127.0.0.1:18083/json_rpc -d '
|
||||
{"jsonrpc":"2.0","id":"0","method":"get_height"}'
|
||||
|
||||
List recent transfers::
|
||||
|
||||
curl -X POST http://127.0.0.1:18083/json_rpc -d '
|
||||
{
|
||||
"jsonrpc":"2.0","id":"0","method":"get_transfers",
|
||||
"params":{"in":true,"out":true,"pending":true,"failed":true}
|
||||
}'
|
||||
|
||||
|
||||
References
|
||||
Components
|
||||
----------
|
||||
|
||||
- Monero Documentation: https://www.getmonero.org/resources/
|
||||
- Monero RPC Documentation: https://www.getmonero.org/resources/developer-guides/wallet-rpc.html
|
||||
- Monero Security Best Practices: https://www.getmonero.org/resources/user-guides/securely_purchase.html
|
||||
**1. Crypto Watcher Service**
|
||||
- Background daemon monitoring blockchain for payments
|
||||
- Processes 100+ payments per cycle with comprehensive logging
|
||||
- Handles confirmation tracking and state transitions
|
||||
- Includes recovery mechanisms for stuck payments
|
||||
|
||||
**2. Client Abstraction Layer**
|
||||
- ``MoneroClient`` - RPC interface to monero-wallet-rpc
|
||||
- ``DogecoinClient`` - RPC interface to dogecoind
|
||||
- Unified error handling and credential protection
|
||||
- Mock clients for testing and development
|
||||
|
||||
**3. Payment Processing Engine**
|
||||
- Real-time quote generation with rate locking
|
||||
- Unique address generation per payment
|
||||
- Automatic confirmation threshold management
|
||||
- Invoice deletion for failed payments
|
||||
|
||||
**4. Auto-Sweep System**
|
||||
- Immediate sweep to cold storage after confirmation
|
||||
- Configurable fee reserves for each cryptocurrency
|
||||
- Comprehensive sweep logging and error recovery
|
||||
- Support for restocking fees and overpayment refunds
|
||||
|
||||
Supported Cryptocurrencies
|
||||
===========================
|
||||
|
||||
Monero (XMR)
|
||||
-------------
|
||||
|
||||
- Privacy-focused cryptocurrency with built-in anonymity
|
||||
- Sub-address system provides perfect payment isolation
|
||||
- Remote node support eliminates blockchain storage requirements
|
||||
- Automatic account isolation for multi-tenant deployments
|
||||
|
||||
See ``docs/MONERO.rst`` for detailed setup and configuration.
|
||||
|
||||
Dogecoin (DOGE)
|
||||
---------------
|
||||
|
||||
- Low transaction fees ideal for small payments
|
||||
- Fast confirmation times (1-minute blocks)
|
||||
- Pruned mode operation (2GB vs 50GB full node)
|
||||
- Strong community and exchange support
|
||||
|
||||
See ``docs/DOGECOIN.md`` for detailed setup and configuration.
|
||||
|
||||
Payment Flow
|
||||
============
|
||||
|
||||
Customer Experience
|
||||
-------------------
|
||||
|
||||
1. **Product Selection** - Customer selects products and proceeds to checkout
|
||||
2. **Cryptocurrency Choice** - Customer selects XMR or DOGE payment option
|
||||
3. **Quote Generation** - Real-time exchange rate locked for 15 minutes
|
||||
4. **Payment Instructions** - Unique address and exact amount provided
|
||||
5. **Payment Monitoring** - Real-time confirmation tracking display
|
||||
6. **Order Fulfillment** - Automatic product delivery after confirmation
|
||||
7. **Receipt Generation** - Transaction details and confirmation provided
|
||||
|
||||
Technical Processing
|
||||
--------------------
|
||||
|
||||
1. **Quote Creation**
|
||||
::
|
||||
|
||||
# Real-time rate from CoinGecko with rate locking
|
||||
payment = CryptoPayment(
|
||||
expected_amount=calculate_crypto_amount(usd_total, coin_rate),
|
||||
rate_locked_usd_per_coin=current_rate,
|
||||
quote_expires_at_ms=now + 900000 # 15 minutes
|
||||
)
|
||||
|
||||
2. **Address Generation**
|
||||
::
|
||||
|
||||
# Monero: Create subaddress
|
||||
address, subaddr_index = client.create_subaddress(
|
||||
account_index=shop.account_index,
|
||||
label=f"payment-{payment.id}"
|
||||
)
|
||||
|
||||
# Dogecoin: Generate labeled address
|
||||
address = client.getnewaddress(f"payment-{payment.id}")
|
||||
|
||||
3. **Payment Monitoring**
|
||||
::
|
||||
|
||||
# Crypto watcher scans for incoming transactions
|
||||
transfers = client.get_transfers_for_subaddr(
|
||||
account_index, [payment.subaddress_index]
|
||||
)
|
||||
|
||||
# Process confirmations and state transitions
|
||||
if transfer.confirmations >= payment.confirmations_required:
|
||||
payment.status = CryptoPayment.STATUS_CONFIRMED
|
||||
finalize_payment(payment)
|
||||
|
||||
4. **Auto-Sweep Execution**
|
||||
::
|
||||
|
||||
# Immediate sweep after confirmation
|
||||
sweep_result = client.sendtoaddress(
|
||||
address=payment.shop.cold_wallet_address,
|
||||
amount=confirmed_amount - fee_reserve
|
||||
)
|
||||
|
||||
log.sweep_operation(payment, "Auto-sweep successful",
|
||||
sweep_result.tx_hash, swept_amount)
|
||||
|
||||
Monitoring and Logging
|
||||
======================
|
||||
|
||||
Centralized Logging System
|
||||
---------------------------
|
||||
|
||||
The system uses a centralized ``CryptoWatcherLogger`` that provides rich context for all payment operations:
|
||||
|
||||
**Payment Context Logging:**
|
||||
::
|
||||
|
||||
# Comprehensive payment information in every log entry
|
||||
log.payment_info(payment, "Payment confirmed", context="final_check")
|
||||
# Output: Payment confirmed: Payment abc123 [confirmed] XMR 1.50/1.50 conf:10/10
|
||||
# addr:8A1B... user:john@example.com shop:Tech Store
|
||||
|
||||
**State Transition Logging:**
|
||||
::
|
||||
|
||||
log.state_transition(payment, "pending", "confirmed", "sufficient_confirmations")
|
||||
# Output: State transition: Payment abc123 [pending → confirmed] XMR 1.50/1.50
|
||||
# reason:sufficient_confirmations
|
||||
|
||||
**Sweep Operation Logging:**
|
||||
::
|
||||
|
||||
log.sweep_operation(payment, "Auto-sweep completed", tx_hash, amount)
|
||||
# Output: Auto-sweep completed: Payment abc123 [confirmed] XMR swept to cold storage
|
||||
# TX:def456 Amount:1.495
|
||||
|
||||
**Error Context Logging:**
|
||||
::
|
||||
|
||||
log.payment_error(payment, "RPC connection failed", exception)
|
||||
# Output: RPC connection failed: Payment abc123 [pending] XMR connection timeout
|
||||
|
||||
Log Analysis
|
||||
------------
|
||||
|
||||
**Monitor Payment Processing:**
|
||||
::
|
||||
|
||||
# Watch real-time payment processing
|
||||
tail -f logs/crypto_watcher.log | grep "Payment.*confirmed"
|
||||
|
||||
# Check sweep operations
|
||||
grep "swept to cold storage" logs/crypto_watcher.log
|
||||
|
||||
# Monitor error conditions
|
||||
grep "ERROR.*Payment" logs/crypto_watcher.log
|
||||
|
||||
**Key Log Patterns:**
|
||||
- ``Processing X payments in cycle`` - Normal operation indicator
|
||||
- ``Payment [id] state transition [old → new]`` - State machine progression
|
||||
- ``Auto-sweep successful`` - Successful fund management
|
||||
- ``Double spend detected`` - Security system activation
|
||||
- ``Recovery operation`` - Stuck payment resolution
|
||||
|
||||
Recovery and Troubleshooting
|
||||
=============================
|
||||
|
||||
Payment Recovery
|
||||
----------------
|
||||
|
||||
The system includes comprehensive recovery mechanisms for various failure scenarios:
|
||||
|
||||
**Stuck Payment Recovery:**
|
||||
::
|
||||
|
||||
# The crypto watcher includes automatic recovery for payments stuck in:
|
||||
# - Pending state with expired quotes
|
||||
# - Received state with insufficient confirmations
|
||||
# - Processing failures during state transitions
|
||||
|
||||
# Manual recovery tools available for administrators:
|
||||
# - Force state transitions for valid payments
|
||||
# - Refund processing for failed payments
|
||||
# - Manual sweep operations for accumulated funds
|
||||
|
||||
**Double Spend Protection:**
|
||||
::
|
||||
|
||||
# Automatic detection and handling of duplicate transactions
|
||||
# - Original payment processed normally
|
||||
# - Duplicate payments marked and refunded
|
||||
# - Comprehensive logging of security events
|
||||
|
||||
**Database Consistency:**
|
||||
::
|
||||
|
||||
# Automatic invoice cleanup for failed payments:
|
||||
# - Successful payments: Invoice preserved for customer records
|
||||
# - Failed payments: Invoice deleted to prevent confusion
|
||||
# - Recovery logging for audit trail
|
||||
|
||||
Administrative Tools
|
||||
====================
|
||||
|
||||
Development and Testing
|
||||
-----------------------
|
||||
|
||||
**Local Environment Setup:**
|
||||
|
||||
See cryptocurrency-specific documentation:
|
||||
- Monero development: ``docs/MONERO.rst``
|
||||
- Dogecoin development: ``docs/DOGECOIN.md``
|
||||
|
||||
**Testing and Validation:**
|
||||
::
|
||||
|
||||
# Comprehensive test suite
|
||||
make test # Full test suite (300+ tests)
|
||||
make test-coverage # Test coverage analysis
|
||||
|
||||
# Specific crypto testing
|
||||
py.test make_post_sell/tests/test_crypto_watcher.py # Payment processing
|
||||
py.test make_post_sell/tests/test_models.py::TestCryptoPayment # Payment models
|
||||
|
||||
Security Considerations
|
||||
=======================
|
||||
|
||||
Hot Wallet Security
|
||||
-------------------
|
||||
|
||||
**Risk Assessment:**
|
||||
- Hot wallets store private keys on the server for payment processing
|
||||
- Server compromise = potential fund theft
|
||||
- Mitigation: Automatic sweep to cold storage minimizes exposure
|
||||
|
||||
**Best Practices:**
|
||||
- Configure automatic sweep to hardware wallets or offline storage
|
||||
- Monitor sweep operations and set up alerts for failures
|
||||
- Regular security audits of server infrastructure
|
||||
- Implement proper access controls and monitoring
|
||||
|
||||
**Fund Management:**
|
||||
- Minimal funds kept for transaction fees (cryptocurrency-specific)
|
||||
- Excess funds automatically swept within minutes of confirmation
|
||||
- See cryptocurrency documentation for specific fee reserves
|
||||
|
||||
Cold Storage Integration
|
||||
------------------------
|
||||
|
||||
**Shop Configuration:**
|
||||
- Each shop configures their own cold wallet address
|
||||
- Cold wallets should be hardware wallets or air-gapped systems
|
||||
- Automatic validation of cold wallet address format
|
||||
|
||||
**Sweep Verification:**
|
||||
- All sweep operations logged with transaction hashes
|
||||
- Failed sweeps trigger alerts and retry mechanisms
|
||||
- Manual sweep tools available for emergency situations
|
||||
|
||||
Transaction Validation
|
||||
----------------------
|
||||
|
||||
**Double Spend Protection:**
|
||||
- Automatic detection of duplicate transactions to same address
|
||||
- Original payment processed, duplicates marked for refund
|
||||
- Comprehensive logging of security events
|
||||
|
||||
**Confirmation Management:**
|
||||
- Risk-based confirmation requirements based on payment value
|
||||
- Automatic adjustment for different cryptocurrencies
|
||||
- Configurable thresholds per shop requirements
|
||||
|
||||
Production Deployment
|
||||
=====================
|
||||
|
||||
System Requirements
|
||||
-------------------
|
||||
|
||||
**Infrastructure:**
|
||||
- Python 3.8+ with virtual environment
|
||||
- PostgreSQL or SQLite database
|
||||
- Pyramid web framework
|
||||
- Log management and monitoring system
|
||||
|
||||
**Cryptocurrency-Specific Requirements:**
|
||||
See individual documentation for detailed requirements:
|
||||
- Monero: ``docs/MONERO.rst`` (~512MB RAM for wallet RPC with remote node)
|
||||
- Dogecoin: ``docs/DOGECOIN.md`` (~4GB RAM for pruned node during sync, ~200MB after)
|
||||
|
||||
Configuration Management
|
||||
-------------------------
|
||||
|
||||
**Configuration Overview:**
|
||||
|
||||
Configuration is managed through:
|
||||
- INI files for system settings (confirmation requirements, RPC endpoints)
|
||||
- Web interface for shop-specific settings (payment thresholds, quote expiry)
|
||||
- Environment variables for sensitive credentials
|
||||
|
||||
See cryptocurrency-specific documentation for detailed configuration:
|
||||
- Monero configuration: ``docs/MONERO.rst``
|
||||
- Dogecoin configuration: ``docs/DOGECOIN.md``
|
||||
|
||||
**Security Best Practices:**
|
||||
- Never expose RPC ports to the internet
|
||||
- Use localhost binding for all cryptocurrency services
|
||||
- Implement proper firewall rules and access controls
|
||||
- Store credentials in environment variables, not in code
|
||||
|
||||
Monitoring and Alerts
|
||||
---------------------
|
||||
|
||||
**Key Metrics to Monitor:**
|
||||
- Payment processing rate and success rate
|
||||
- Auto-sweep operation success rate
|
||||
- RPC connection health and response times
|
||||
- Database consistency and performance
|
||||
- Error rates and recovery operations
|
||||
|
||||
**Alert Configuration:**
|
||||
- Failed auto-sweep operations (immediate attention required)
|
||||
- RPC connection failures (affects payment processing)
|
||||
- High error rates or stuck payments
|
||||
- Unusual transaction patterns or security events
|
||||
|
||||
**Log Management:**
|
||||
- Centralized log collection with structured data
|
||||
- Log rotation and retention policies
|
||||
- Search and analysis capabilities for troubleshooting
|
||||
- Integration with monitoring systems for alerting
|
||||
|
||||
Conclusion
|
||||
==========
|
||||
|
||||
Make Post Sell's cryptocurrency payment system provides a production-ready foundation for accepting XMR and DOGE payments with enterprise-grade reliability. The comprehensive state machine, automatic fund management, and extensive testing ensure robust operation in production environments.
|
||||
|
||||
The system's architecture supports adding additional cryptocurrencies through the established client abstraction layer and payment processing framework, making it a scalable foundation for multi-cryptocurrency commerce.
|
||||
|
||||
**Key Benefits:**
|
||||
- Proven reliability through comprehensive testing (300+ automated tests)
|
||||
- Production-hardened security with automatic fund management
|
||||
- Comprehensive monitoring and recovery capabilities
|
||||
- Developer-friendly architecture with clear separation of concerns
|
||||
- Extensive documentation and troubleshooting resources
|
||||
|
||||
For specific setup instructions, see the individual cryptocurrency guides and development environment documentation.
|
||||
329
docs/CRYPTO_PERFORMANCE.rst
Normal file
329
docs/CRYPTO_PERFORMANCE.rst
Normal file
|
|
@ -0,0 +1,329 @@
|
|||
========================================
|
||||
Cryptocurrency Performance Analysis
|
||||
========================================
|
||||
|
||||
Production Resource Usage and Performance Metrics
|
||||
=================================================
|
||||
|
||||
This document provides real-world performance measurements from production cryptocurrency nodes and services running Make Post Sell.
|
||||
|
||||
Measurement Methodology
|
||||
=======================
|
||||
|
||||
Commands Used for Analysis
|
||||
--------------------------
|
||||
|
||||
**1. Find Running Processes:**
|
||||
::
|
||||
|
||||
# List all cryptocurrency-related processes
|
||||
ps aux | grep -E "(monero|dogecoin|doge)" | grep -v grep
|
||||
|
||||
**2. Basic Process Information:**
|
||||
::
|
||||
|
||||
# Get process details with memory usage
|
||||
ps aux | grep -E "(monero-wallet-rpc|dogecoind)" | grep -v grep | \
|
||||
awk '{print $1, $2, $3, $4, $5, $6, $11}'
|
||||
|
||||
**3. Detailed Memory Statistics:**
|
||||
::
|
||||
|
||||
# Get detailed memory stats from /proc filesystem
|
||||
echo "=== Monero Wallet RPC (PID $PID1) ===" && \
|
||||
cat /proc/$PID1/status | grep -E "(VmSize|VmRSS|VmPeak)"
|
||||
|
||||
echo "=== Dogecoind (PID $PID2) ===" && \
|
||||
cat /proc/$PID2/status | grep -E "(VmSize|VmRSS|VmPeak)"
|
||||
|
||||
**4. Process Uptime and Stability:**
|
||||
::
|
||||
|
||||
# Check how long processes have been running
|
||||
ps -p $PID1,$PID2 -o pid,comm,etime,rss
|
||||
|
||||
**5. Convert Memory Values:**
|
||||
::
|
||||
|
||||
# Convert KB to MB for readability
|
||||
echo "scale=2; $KB_VALUE/1024" | bc
|
||||
|
||||
Production Measurements
|
||||
=======================
|
||||
|
||||
Test Environment
|
||||
----------------
|
||||
|
||||
- **Date of Measurement**: September 2024
|
||||
- **System Uptime**: 4+ days for both services
|
||||
- **Production Load**: Active payment processing
|
||||
- **Configuration**: Standard Make Post Sell setup
|
||||
|
||||
Monero Wallet RPC Performance
|
||||
-----------------------------
|
||||
|
||||
**Configuration**: Remote node (opennode.xmr-tw.org:18089)
|
||||
|
||||
**Process Details**:
|
||||
::
|
||||
|
||||
Command: monero-wallet-rpc --wallet-file=/path/to/mps-wallet \
|
||||
--daemon-address=opennode.xmr-tw.org:18089 \
|
||||
--trusted-daemon --rpc-bind-ip=127.0.0.1 \
|
||||
--rpc-bind-port=18083 --rpc-login=test_user:test_pass
|
||||
|
||||
**Resource Usage**:
|
||||
|
||||
- **RSS (Resident Set Size)**: 11,136 KB (~10.87 MB)
|
||||
- **Virtual Memory Size**: 493,508 KB (~481.94 MB)
|
||||
- **Peak Memory**: 531,908 KB (~519.44 MB)
|
||||
- **CPU Usage**: 0.0% (idle most of the time)
|
||||
- **Process Uptime**: 4 days, 14 hours, 54 minutes
|
||||
|
||||
**Key Findings**:
|
||||
|
||||
1. Extremely lightweight with remote node configuration
|
||||
2. Minimal active memory usage (~11 MB)
|
||||
3. No blockchain storage required
|
||||
4. Stable over extended periods
|
||||
5. Suitable for resource-constrained environments
|
||||
|
||||
Dogecoin Core Performance
|
||||
-------------------------
|
||||
|
||||
**Configuration**: Pruned mode with 2GB limit
|
||||
|
||||
**Process Details**:
|
||||
::
|
||||
|
||||
Command: dogecoind
|
||||
Config: prune=2000 (2GB blockchain storage limit)
|
||||
|
||||
**Resource Usage**:
|
||||
|
||||
- **RSS (Resident Set Size)**: 161,936 KB (~158.14 MB)
|
||||
- **Virtual Memory Size**: 3,671,788 KB (~3,585.73 MB)
|
||||
- **Peak Memory**: 3,903,284 KB (~3,811.80 MB)
|
||||
- **CPU Usage**: 11.7% (active blockchain validation)
|
||||
- **Process Uptime**: 4 days, 8 hours, 6 minutes
|
||||
|
||||
**Key Findings**:
|
||||
|
||||
1. Requires ~4GB RAM during initial sync
|
||||
2. Settles to ~160MB active memory after sync
|
||||
3. Higher CPU usage due to blockchain validation
|
||||
4. Pruned mode saves 96% disk space (2GB vs 50GB)
|
||||
5. Stable for extended production use
|
||||
|
||||
Resource Requirements Summary
|
||||
=============================
|
||||
|
||||
Development Environment
|
||||
-----------------------
|
||||
|
||||
**Minimum Requirements**:
|
||||
|
||||
- **Monero (Remote Node)**: 512MB RAM, no disk space
|
||||
- **Dogecoin (Pruned)**: 4GB RAM, 2GB disk space
|
||||
|
||||
**Recommended**:
|
||||
|
||||
- **Monero (Remote Node)**: 1GB RAM for comfort
|
||||
- **Dogecoin (Pruned)**: 6GB RAM for faster sync
|
||||
|
||||
Production Environment
|
||||
----------------------
|
||||
|
||||
**After Initial Sync**:
|
||||
|
||||
- **Monero Wallet RPC**: ~11MB active memory
|
||||
- **Dogecoin Core**: ~160MB active memory
|
||||
- **Combined**: Less than 200MB active memory
|
||||
|
||||
**During Operations**:
|
||||
|
||||
- Payment processing adds minimal overhead
|
||||
- Auto-sweep operations are memory-efficient
|
||||
- Multiple shops share the same services
|
||||
|
||||
Performance Optimization Tips
|
||||
=============================
|
||||
|
||||
Monero Optimization
|
||||
-------------------
|
||||
|
||||
1. **Use Remote Nodes for Development/Small Deployments**
|
||||
::
|
||||
|
||||
# Lightweight option - no blockchain required
|
||||
--daemon-address=opennode.xmr-tw.org:18089
|
||||
|
||||
2. **Local Node for High-Volume Production**
|
||||
::
|
||||
|
||||
# Better privacy and reliability, but needs 150GB+ disk
|
||||
--daemon-address=127.0.0.1:18081
|
||||
|
||||
3. **Memory Optimization**
|
||||
::
|
||||
|
||||
# Limit transaction history if memory-constrained
|
||||
--max-concurrency=1
|
||||
|
||||
Dogecoin Optimization
|
||||
---------------------
|
||||
|
||||
1. **Pruned Mode Configuration**
|
||||
::
|
||||
|
||||
# In dogecoin.conf
|
||||
prune=2000 # Minimum for wallet functionality
|
||||
|
||||
# Can increase for better performance
|
||||
prune=5000 # 5GB limit
|
||||
|
||||
2. **Database Cache Tuning**
|
||||
::
|
||||
|
||||
# Reduce memory usage (default 300MB)
|
||||
dbcache=100
|
||||
|
||||
# Or increase for better performance
|
||||
dbcache=1000
|
||||
|
||||
3. **Connection Limits**
|
||||
::
|
||||
|
||||
# Reduce peer connections to save resources
|
||||
maxconnections=8
|
||||
|
||||
Monitoring Commands
|
||||
===================
|
||||
|
||||
Real-time Monitoring
|
||||
--------------------
|
||||
|
||||
**Memory Usage Over Time**:
|
||||
::
|
||||
|
||||
# Monitor every 5 seconds
|
||||
watch -n 5 'ps aux | grep -E "(monero|doge)" | grep -v grep'
|
||||
|
||||
**Detailed Memory Breakdown**:
|
||||
::
|
||||
|
||||
# Show memory maps
|
||||
pmap -x $PID | tail -1
|
||||
|
||||
**Resource Limits**:
|
||||
::
|
||||
|
||||
# Check process limits
|
||||
cat /proc/$PID/limits
|
||||
|
||||
Performance Logging
|
||||
-------------------
|
||||
|
||||
**Create Monitoring Script**:
|
||||
::
|
||||
|
||||
#!/bin/bash
|
||||
# Save as monitor_crypto.sh
|
||||
|
||||
LOG_FILE="/var/log/crypto_performance.log"
|
||||
|
||||
while true; do
|
||||
echo "=== $(date) ===" >> $LOG_FILE
|
||||
ps aux | grep -E "(monero|doge)" | grep -v grep >> $LOG_FILE
|
||||
echo "" >> $LOG_FILE
|
||||
sleep 300 # Log every 5 minutes
|
||||
done
|
||||
|
||||
**Analyze Performance Trends**:
|
||||
::
|
||||
|
||||
# Average memory usage
|
||||
awk '/monero-wallet-rpc/ {sum+=$6; count++} END {print sum/count}' $LOG_FILE
|
||||
|
||||
# Peak memory usage
|
||||
awk '/dogecoind/ {if($6>max) max=$6} END {print max}' $LOG_FILE
|
||||
|
||||
Troubleshooting High Resource Usage
|
||||
====================================
|
||||
|
||||
Monero Wallet RPC
|
||||
-----------------
|
||||
|
||||
**Symptoms**: High memory usage with remote node
|
||||
|
||||
**Diagnosis**:
|
||||
::
|
||||
|
||||
# Check wallet cache size
|
||||
du -sh ~/.bitmonero/
|
||||
|
||||
**Solution**:
|
||||
::
|
||||
|
||||
# Clear transaction cache
|
||||
monero-wallet-cli --wallet-file=/path/to/wallet
|
||||
> rescan_bc hard
|
||||
|
||||
Dogecoin Core
|
||||
-------------
|
||||
|
||||
**Symptoms**: Excessive memory during sync
|
||||
|
||||
**Diagnosis**:
|
||||
::
|
||||
|
||||
# Check sync progress
|
||||
dogecoin-cli getblockchaininfo | grep -E "(blocks|headers|progress)"
|
||||
|
||||
**Solution**:
|
||||
::
|
||||
|
||||
# Reduce database cache during sync
|
||||
dogecoin-cli stop
|
||||
# Add to dogecoin.conf: dbcache=50
|
||||
dogecoind
|
||||
|
||||
Capacity Planning
|
||||
=================
|
||||
|
||||
Scaling Considerations
|
||||
----------------------
|
||||
|
||||
**Per-Shop Resource Impact**:
|
||||
|
||||
- Monero: Negligible (shared wallet RPC)
|
||||
- Dogecoin: Negligible (shared node)
|
||||
- Database: ~1MB per 1000 payments
|
||||
|
||||
**High-Volume Recommendations**:
|
||||
|
||||
1. **10-100 shops**: Single server sufficient
|
||||
2. **100-1000 shops**: Consider dedicated database
|
||||
3. **1000+ shops**: Multiple crypto nodes with load balancing
|
||||
|
||||
**Resource Scaling Formula**:
|
||||
::
|
||||
|
||||
# Rough estimates
|
||||
RAM_needed = base_requirement + (shops * 0.1MB) + (daily_payments * 0.01MB)
|
||||
|
||||
# Example: 100 shops, 1000 daily payments
|
||||
Monero: 512MB + 10MB + 10MB = 532MB
|
||||
Dogecoin: 4GB + 10MB + 10MB = 4.02GB
|
||||
|
||||
Conclusion
|
||||
==========
|
||||
|
||||
The cryptocurrency infrastructure for Make Post Sell is remarkably efficient:
|
||||
|
||||
1. **Monero with remote node**: Production-ready with just 11MB active memory
|
||||
2. **Dogecoin pruned mode**: Requires 4GB during sync but only 160MB ongoing
|
||||
3. **Combined footprint**: Less than 200MB RAM for active operations
|
||||
4. **Proven stability**: 4+ days continuous operation without issues
|
||||
|
||||
This performance profile makes Make Post Sell suitable for deployment on modest VPS instances while maintaining the ability to scale to high-volume operations.
|
||||
624
docs/DOGECOIN.md
624
docs/DOGECOIN.md
|
|
@ -1,151 +1,609 @@
|
|||
# Dogecoin Setup Guide 🐕
|
||||
# Dogecoin (DOGE) Integration Guide 🐕
|
||||
|
||||
Make Post Sell supports Dogecoin payments using **Dogecoin Core in pruned mode** - just like mobile wallets but for servers!
|
||||
**Much Payments! Such Commerce! Very Wow!**
|
||||
|
||||
## Recommended Setup: Pruned Node Mode ✨
|
||||
## Overview
|
||||
|
||||
Make Post Sell's Dogecoin integration provides fast, low-cost cryptocurrency payments using **Dogecoin Core in pruned mode** - delivering full hot wallet functionality with minimal infrastructure requirements (2GB vs 50GB blockchain storage).
|
||||
|
||||
**Dogecoin Advantages:**
|
||||
|
||||
- ✅ **Ultra-low fees** - Perfect for small payments (~$0.001 transaction fees)
|
||||
- ✅ **Fast confirmations** - 1-minute blocks for quick transaction settlement
|
||||
- ✅ **Pruned mode support** - Only 2GB storage vs 50GB full blockchain
|
||||
- ✅ **Strong community** - Excellent exchange support and liquidity
|
||||
- ✅ **Proven infrastructure** - Bitcoin-based technology with years of reliability
|
||||
|
||||
## Architecture
|
||||
|
||||
Label-Based Payment Tracking
|
||||
----------------------------
|
||||
|
||||
Unlike Monero's subaddress system, Dogecoin uses label-based address management for payment isolation:
|
||||
|
||||
**Address Structure:**
|
||||
```
|
||||
Dogecoin Wallet: make_post_sell_hot_wallet
|
||||
├── Address D1A2B3... (label: "payment-abc123") → Shop A, Payment #1
|
||||
├── Address D4C5D6... (label: "payment-def456") → Shop A, Payment #2
|
||||
├── Address D7E8F9... (label: "payment-ghi789") → Shop B, Payment #1
|
||||
└── Address D0G1H2... (label: "payment-jkl012") → Shop B, Payment #2
|
||||
```
|
||||
|
||||
**Benefits:**
|
||||
- Unique address per payment for perfect isolation
|
||||
- Label-based tracking for easy payment identification
|
||||
- Single wallet serving all shops efficiently
|
||||
- Standard Bitcoin RPC interface compatibility
|
||||
|
||||
## Payment Flow
|
||||
|
||||
Dogecoin-Specific Processing
|
||||
----------------------------
|
||||
|
||||
**1. Payment Address Generation**
|
||||
```javascript
|
||||
// Create unique labeled address for each payment
|
||||
address = client.getnewaddress(f"payment-{payment.id}")
|
||||
|
||||
// Store address details
|
||||
payment.address = address
|
||||
payment.coin_type = "DOGE"
|
||||
payment.shop_id = shop.id
|
||||
```
|
||||
|
||||
**2. Payment Monitoring**
|
||||
```javascript
|
||||
// Scan for transactions to specific addresses
|
||||
transactions = client.listtransactions(
|
||||
label="*", // All transactions
|
||||
count=100, // Recent transactions
|
||||
skip=0
|
||||
)
|
||||
|
||||
// Filter for payment-specific transactions
|
||||
for tx in transactions:
|
||||
if tx.address == payment.address and tx.category == "receive":
|
||||
process_incoming_transaction(payment, tx)
|
||||
```
|
||||
|
||||
**3. Confirmation Processing**
|
||||
```javascript
|
||||
// Check confirmations against requirements
|
||||
current_height = client.getblockcount()
|
||||
confirmations = tx.confirmations
|
||||
|
||||
if confirmations >= payment.confirmations_required:
|
||||
payment.status = CryptoPayment.STATUS_CONFIRMED
|
||||
finalize_payment(payment)
|
||||
|
||||
// Trigger auto-sweep
|
||||
auto_sweep_payment(payment, confirmed_amount)
|
||||
```
|
||||
|
||||
**4. Auto-Sweep Execution**
|
||||
```javascript
|
||||
// Immediate sweep to shop's cold wallet
|
||||
tx_hash = client.sendtoaddress(
|
||||
address=payment.shop.cold_wallet_address,
|
||||
amount=confirmed_amount - fee_reserve,
|
||||
comment=f"Auto-sweep for payment {payment.id}",
|
||||
comment_to="",
|
||||
subtractfeefromamount=True // Subtract fee from amount
|
||||
)
|
||||
|
||||
log.sweep_operation(payment, "DOGE auto-sweep successful", tx_hash, swept_amount)
|
||||
```
|
||||
|
||||
## Installation and Setup
|
||||
|
||||
### System Requirements
|
||||
|
||||
**Resource Usage (Production Measurements):**
|
||||
- **RAM During Initial Sync**: ~4GB recommended
|
||||
- **RAM After Sync**: ~200MB active memory usage (158MB RSS)
|
||||
- **Disk Space**: ~2GB for pruned mode (vs 50GB+ for full node)
|
||||
- **Network**: Good peer connectivity for blockchain sync
|
||||
- **Sync Time**: 2-4 hours for pruned mode
|
||||
|
||||
### Recommended Setup: Pruned Mode ✨
|
||||
|
||||
**Minimal blockchain storage** with **full hot wallet functionality**.
|
||||
|
||||
### 1. Install Dogecoin Core
|
||||
#### 1. Install Dogecoin Core
|
||||
```bash
|
||||
# Download latest release
|
||||
# Download latest release (v1.14.6)
|
||||
wget https://github.com/dogecoin/dogecoin/releases/download/v1.14.6/dogecoin-1.14.6-x86_64-linux-gnu.tar.gz
|
||||
tar -xzf dogecoin-1.14.6-x86_64-linux-gnu.tar.gz
|
||||
sudo mv dogecoin-1.14.6/bin/* /usr/local/bin/
|
||||
|
||||
# Or use Make command for automatic installation
|
||||
make install-dogecoin
|
||||
```
|
||||
|
||||
### 2. Configure Pruned Mode
|
||||
#### 2. Configure Pruned Mode
|
||||
Create `~/.dogecoin/dogecoin.conf`:
|
||||
```ini
|
||||
# Enable server mode for RPC
|
||||
server=1
|
||||
daemon=1
|
||||
|
||||
# RPC credentials
|
||||
rpcuser=your_rpc_user
|
||||
rpcpassword=your_very_secure_rpc_password
|
||||
# RPC credentials - CHANGE THESE IN PRODUCTION!
|
||||
rpcuser=mps_doge_user
|
||||
rpcpassword=change_this_password_in_production
|
||||
rpcallowip=127.0.0.1
|
||||
rpcport=22555
|
||||
|
||||
# PRUNED MODE - keeps only ~2GB instead of 50GB!
|
||||
prune=2000
|
||||
|
||||
# Connect to reliable peers (faster sync)
|
||||
# Connect to reliable peers for faster sync
|
||||
addnode=seed.dogechain.info
|
||||
addnode=seed.multidoge.org
|
||||
addnode=seed.dogecoin.com
|
||||
|
||||
# Wallet settings
|
||||
# Hot wallet for Make Post Sell
|
||||
wallet=make_post_sell_hot_wallet
|
||||
```
|
||||
|
||||
### 3. Start & Sync (Much Faster!)
|
||||
#### 3. Start & Sync (Much Faster!)
|
||||
```bash
|
||||
# Start dogecoin daemon
|
||||
# Start dogecoin daemon (or use Make command)
|
||||
dogecoind
|
||||
# OR
|
||||
make dogecoin-node
|
||||
|
||||
# Initial sync takes ~2-4 hours (vs 12+ hours for full node)
|
||||
# Watch progress:
|
||||
dogecoin-cli getblockchaininfo
|
||||
make dogecoin-status
|
||||
|
||||
# When "blocks" equals "headers", sync is complete
|
||||
```
|
||||
|
||||
### 4. Configure Make Post Sell
|
||||
#### 4. Configure Make Post Sell
|
||||
```ini
|
||||
# Enable Dogecoin payments
|
||||
payments.dogecoin.enabled = true
|
||||
app.payments.dogecoin.enabled = False # Default from development.ini
|
||||
|
||||
# Connect to local pruned node
|
||||
dogecoin.rpc_url = http://localhost:22555
|
||||
dogecoin.rpc_user = your_rpc_user
|
||||
dogecoin.rpc_pass = your_very_secure_rpc_password
|
||||
dogecoin.rpc_url = http://127.0.0.1:22555 # Default from development.ini
|
||||
dogecoin.rpc_user = mps_doge_user # Default from development.ini
|
||||
dogecoin.rpc_pass = change_this_password_in_production # Default from development.ini
|
||||
|
||||
# Confirmation settings
|
||||
dogecoin.confirmations.petty = 2 # < $10: 2 confirmations
|
||||
dogecoin.confirmations.mid = 6 # $10-$100: 6 confirmations
|
||||
dogecoin.confirmations.high = 20 # > $100: 20 confirmations
|
||||
# Confirmation settings (risk-based)
|
||||
# Note: Payment tier thresholds ($10 and $100) are shop settings, not INI settings
|
||||
dogecoin.confirmations.petty = 2 # < $10: 2 confirmations (default from development.ini)
|
||||
dogecoin.confirmations.mid = 6 # $10-$100: 6 confirmations (default from development.ini)
|
||||
dogecoin.confirmations.high = 20 # > $100: 20 confirmations (default from development.ini)
|
||||
|
||||
# Fee buffer for customer payments
|
||||
dogecoin.fee_buffer = 0.01
|
||||
# Fee management
|
||||
dogecoin.fee_buffer = 0.002 # DOGE kept for transaction fees (reduced from 0.01)
|
||||
dogecoin.rate_source_url = https://api.coingecko.com/api/v3/simple/price?ids=dogecoin&vs_currencies=usd
|
||||
```
|
||||
|
||||
### ✅ Why This Works Perfectly
|
||||
### Shop-Specific Settings
|
||||
|
||||
**Like Mobile Apps:**
|
||||
- ✅ **Real hot wallet** with private keys
|
||||
- ✅ **Connects to remote peers** for blockchain data
|
||||
- ✅ **Minimal storage** (~2GB vs 50GB)
|
||||
- ✅ **Full RPC functionality** (send, receive, sweep)
|
||||
- ✅ **Fast sync** (2-4 hours vs 12+ hours)
|
||||
Each shop can configure payment risk thresholds through the web interface:
|
||||
|
||||
**Production Ready:**
|
||||
- ✅ **Auto-sweep enabled**
|
||||
- ✅ **True address generation**
|
||||
- ✅ **No API dependencies**
|
||||
- ✅ **Decentralized operation**
|
||||
- **Mid Tier Threshold**: Default $10.00 (stored as 1000 cents)
|
||||
- **High Tier Threshold**: Default $100.00 (stored as 10000 cents)
|
||||
- **Quote Expiry**: Default 3600 seconds (60 minutes)
|
||||
|
||||
## Alternative: Full Node Mode
|
||||
These thresholds determine which confirmation requirements apply to each payment:
|
||||
|
||||
If you need maximum decentralization, you can run without pruning:
|
||||
- Payments under the mid threshold use `dogecoin.confirmations.petty` (2 confirmations)
|
||||
- Payments between mid and high use `dogecoin.confirmations.mid` (6 confirmations)
|
||||
- Payments over the high threshold use `dogecoin.confirmations.high` (20 confirmations)
|
||||
|
||||
```ini
|
||||
# Full node (in dogecoin.conf) - removes prune=2000
|
||||
**Important**: The $0.64 minimum payment threshold is hardcoded and cannot be changed. This prevents processing payments that would cost more in fees than their value.
|
||||
|
||||
## Development Environment
|
||||
|
||||
### Quick Start for Developers
|
||||
|
||||
**1. Setup Dogecoin Node**
|
||||
```bash
|
||||
# Create configuration and start pruned node
|
||||
make dogecoin-config
|
||||
make dogecoin-node
|
||||
|
||||
# Check sync status
|
||||
make dogecoin-status
|
||||
```
|
||||
|
||||
**2. Start Payment Processing**
|
||||
```bash
|
||||
# Start crypto watcher service
|
||||
make crypto-watcher
|
||||
|
||||
# Or run once for testing
|
||||
make crypto-watcher-once
|
||||
```
|
||||
|
||||
**3. Start Web Application**
|
||||
```bash
|
||||
# Start development server
|
||||
make serve
|
||||
```
|
||||
|
||||
**Testing and Validation**
|
||||
```bash
|
||||
# Run Dogecoin-specific tests
|
||||
py.test make_post_sell/tests/test_crypto_watcher.py -k "doge or dogecoin"
|
||||
|
||||
# Test node connectivity
|
||||
dogecoin-cli getblockchaininfo
|
||||
dogecoin-cli getnetworkinfo
|
||||
dogecoin-cli getwalletinfo
|
||||
```
|
||||
|
||||
## Production Deployment
|
||||
|
||||
### Security Configuration
|
||||
|
||||
**Node Security:**
|
||||
```bash
|
||||
# Production dogecoin.conf with security
|
||||
server=1
|
||||
daemon=1
|
||||
rpcuser=your_rpc_user
|
||||
rpcpassword=your_very_secure_rpc_password
|
||||
|
||||
# Strong RPC credentials
|
||||
rpcuser=very_secure_username
|
||||
rpcpassword=extremely_secure_password_123!@#
|
||||
rpcallowip=127.0.0.1
|
||||
rpcport=22555
|
||||
|
||||
# Pruned mode for minimal storage
|
||||
prune=2000
|
||||
|
||||
# Specific wallet for isolation
|
||||
wallet=make_post_sell_production_wallet
|
||||
```
|
||||
|
||||
**Trade-offs:**
|
||||
- ✅ Complete blockchain history
|
||||
- ❌ ~50GB storage requirement
|
||||
- ❌ 12+ hour initial sync
|
||||
|
||||
## Shop Configuration
|
||||
|
||||
Both modes require shop owners to:
|
||||
|
||||
1. **Enable Dogecoin** in shop settings
|
||||
2. **Configure cold wallet** address where funds will be swept
|
||||
3. **Set risk thresholds** for confirmation requirements
|
||||
|
||||
## Payment Flow
|
||||
|
||||
1. **Customer Checkout**: Selects "Pay with Dogecoin 🐕"
|
||||
2. **Quote Generation**: Real-time USD/DOGE rate from CoinGecko
|
||||
3. **Address Creation**: Unique address per payment
|
||||
4. **Payment Monitoring**: 20-second polling for confirmations
|
||||
5. **Auto-Finalization**: Products unlocked when confirmed
|
||||
6. **Auto-Sweep**: Automatic sweep to cold wallet when confirmed
|
||||
|
||||
## Monitoring & Logs
|
||||
|
||||
**Network Security:**
|
||||
```bash
|
||||
# Watch the crypto watcher logs
|
||||
tail -f /path/to/logs/crypto_watcher.log
|
||||
# Firewall rules (iptables example)
|
||||
# Only allow local connections to Dogecoin RPC
|
||||
iptables -A INPUT -p tcp --dport 22555 -s 127.0.0.1 -j ACCEPT
|
||||
iptables -A INPUT -p tcp --dport 22555 -j REJECT
|
||||
|
||||
# Key log messages:
|
||||
# "Processing 1 DOGE payments"
|
||||
# "Found 2 incoming DOGE transfers for address D..."
|
||||
# "DOGE auto-sweep successful for payment [uuid]"
|
||||
# Block P2P port from internet (optional, for extra security)
|
||||
iptables -A INPUT -p tcp --dport 22556 -s 127.0.0.1 -j ACCEPT
|
||||
iptables -A INPUT -p tcp --dport 22556 -j REJECT
|
||||
```
|
||||
|
||||
**File Permissions:**
|
||||
```bash
|
||||
# Secure dogecoin data directory
|
||||
chmod 700 ~/.dogecoin/
|
||||
chmod 600 ~/.dogecoin/dogecoin.conf
|
||||
chmod 600 ~/.dogecoin/wallet.dat
|
||||
|
||||
# Run dogecoind as dedicated user (optional)
|
||||
useradd -r -s /bin/false dogecoin
|
||||
chown -R dogecoin:dogecoin /home/dogecoin/.dogecoin/
|
||||
```
|
||||
|
||||
### Cold Storage Integration
|
||||
|
||||
**Shop Configuration:**
|
||||
Each shop configures their own cold wallet address for automatic sweep destinations:
|
||||
|
||||
```python
|
||||
def validate_dogecoin_address(address):
|
||||
"""Validate Dogecoin address format."""
|
||||
if not address or len(address) != 34:
|
||||
return False
|
||||
if not address.startswith('D'):
|
||||
return False
|
||||
# Base58 character validation
|
||||
valid_chars = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"
|
||||
return all(c in valid_chars for c in address)
|
||||
```
|
||||
|
||||
**Auto-Sweep Configuration:**
|
||||
```python
|
||||
def auto_sweep_dogecoin_payment(payment, confirmed_amount):
|
||||
"""Sweep confirmed DOGE payment to cold storage."""
|
||||
fee_reserve = Decimal('0.01') # Keep 0.01 DOGE for fees
|
||||
sweep_amount = confirmed_amount - fee_reserve
|
||||
|
||||
if sweep_amount > 0:
|
||||
# Sweep to shop's configured cold wallet
|
||||
tx_hash = client.sendtoaddress(
|
||||
address=payment.shop.cold_wallet_address,
|
||||
amount=float(sweep_amount),
|
||||
comment=f"Auto-sweep payment {payment.id}",
|
||||
comment_to="",
|
||||
subtractfeefromamount=False
|
||||
)
|
||||
|
||||
log.sweep_operation(payment, "DOGE auto-sweep successful",
|
||||
tx_hash, sweep_amount)
|
||||
```
|
||||
|
||||
## Monitoring and Maintenance
|
||||
|
||||
### Dogecoin Health Monitoring
|
||||
|
||||
**Key Metrics:**
|
||||
```bash
|
||||
# Node synchronization status
|
||||
dogecoin-cli getblockchaininfo | grep -E "(blocks|headers|verificationprogress)"
|
||||
|
||||
# Network connectivity
|
||||
dogecoin-cli getnetworkinfo | grep -E "(connections|version)"
|
||||
|
||||
# Wallet balance and transactions
|
||||
dogecoin-cli getwalletinfo
|
||||
dogecoin-cli getbalance
|
||||
```
|
||||
|
||||
**Automated Health Checks:**
|
||||
```bash
|
||||
#!/bin/bash
|
||||
# dogecoin_health_check.sh
|
||||
|
||||
# Check if dogecoind is running
|
||||
if ! dogecoin-cli getblockchaininfo >/dev/null 2>&1; then
|
||||
echo "CRITICAL: Dogecoin daemon not responding"
|
||||
exit 2
|
||||
fi
|
||||
|
||||
# Check synchronization
|
||||
blocks=$(dogecoin-cli getblockchaininfo | grep '"blocks"' | cut -d: -f2 | tr -d ' ,')
|
||||
headers=$(dogecoin-cli getblockchaininfo | grep '"headers"' | cut -d: -f2 | tr -d ' ,')
|
||||
|
||||
if [ "$blocks" != "$headers" ]; then
|
||||
echo "WARNING: Dogecoin not fully synced (blocks: $blocks, headers: $headers)"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
# Check wallet connectivity
|
||||
if ! dogecoin-cli getwalletinfo >/dev/null 2>&1; then
|
||||
echo "WARNING: Wallet not accessible"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
echo "OK: Dogecoin healthy, blocks: $blocks"
|
||||
```
|
||||
|
||||
### Log Analysis
|
||||
|
||||
**Dogecoin-Specific Log Patterns:**
|
||||
```bash
|
||||
# Monitor Dogecoin payment processing
|
||||
grep "DOGE.*confirmed" logs/crypto_watcher.log
|
||||
|
||||
# Check auto-sweep operations
|
||||
grep "DOGE.*swept to cold storage" logs/crypto_watcher.log
|
||||
|
||||
# Monitor RPC connectivity
|
||||
grep "Dogecoin RPC" logs/crypto_watcher.log
|
||||
|
||||
# Payment creation tracking
|
||||
grep "DOGE.*payment.*created" logs/crypto_watcher.log
|
||||
```
|
||||
|
||||
**Performance Monitoring:**
|
||||
```bash
|
||||
# Payment processing times
|
||||
grep "Payment.*DOGE.*state transition" logs/crypto_watcher.log | \
|
||||
awk '{print $1, $2, $NF}' | \
|
||||
sort
|
||||
```
|
||||
|
||||
**Error Analysis:**
|
||||
```bash
|
||||
# Common Dogecoin error patterns
|
||||
grep -E "(insufficient.*funds|connection.*refused|wallet.*locked)" logs/crypto_watcher.log
|
||||
|
||||
# RPC communication errors
|
||||
grep "Dogecoin RPC connection error" logs/crypto_watcher.log
|
||||
```
|
||||
|
||||
## Troubleshooting
|
||||
|
||||
### Full Node Issues
|
||||
- **Sync Problems**: Check `dogecoin.conf` and network connectivity
|
||||
- **RPC Errors**: Verify credentials and `rpcallowip` settings
|
||||
- **Storage Full**: Use `prune=10000` to limit blockchain storage
|
||||
### Common Issues
|
||||
|
||||
## Security Notes
|
||||
**Node Synchronization Problems:**
|
||||
```bash
|
||||
# Check if daemon is running
|
||||
ps aux | grep dogecoind
|
||||
|
||||
- **Cold Wallets**: Always use hardware wallets or offline storage for shop sweep addresses
|
||||
- **RPC Security**: Never expose RPC ports to the internet
|
||||
- **Private Keys**: Node stores keys on disk - secure the server properly
|
||||
# Check peer connections
|
||||
dogecoin-cli getpeerinfo | grep -c '"id"'
|
||||
|
||||
---
|
||||
# Force reconnection to peers
|
||||
dogecoin-cli addnode seed.dogechain.info add
|
||||
dogecoin-cli addnode seed.multidoge.org add
|
||||
```
|
||||
|
||||
**Much setup! Such payments! Very wow! 🐕🚀**
|
||||
**Wallet Issues:**
|
||||
```bash
|
||||
# Check wallet loading
|
||||
dogecoin-cli listwallets
|
||||
|
||||
Ready to accept DOGE payments with zero blockchain bloat!
|
||||
# Load specific wallet if needed
|
||||
dogecoin-cli loadwallet make_post_sell_hot_wallet
|
||||
|
||||
# Check wallet integrity
|
||||
dogecoin-cli getwalletinfo
|
||||
```
|
||||
|
||||
**Address and Transaction Issues:**
|
||||
```bash
|
||||
# List all addresses with labels
|
||||
dogecoin-cli listaddressgroupings
|
||||
|
||||
# Check specific address balance
|
||||
dogecoin-cli getreceivedbyaddress D1A2B3C4D5E6F7G8H9I0J1K2L3M4N5O6P7 1
|
||||
|
||||
# List recent transactions
|
||||
dogecoin-cli listtransactions "*" 50 0
|
||||
```
|
||||
|
||||
**Recovery Procedures:**
|
||||
```bash
|
||||
# Backup wallet (regular maintenance)
|
||||
dogecoin-cli backupwallet /secure/backup/wallet-$(date +%Y%m%d).dat
|
||||
|
||||
# Restore wallet from backup
|
||||
cp /secure/backup/wallet-20231201.dat ~/.dogecoin/wallet.dat
|
||||
# Restart dogecoind after restore
|
||||
|
||||
# Rescan blockchain for transactions (if needed)
|
||||
dogecoin-cli rescanblockchain 0
|
||||
```
|
||||
|
||||
### Emergency Procedures
|
||||
|
||||
**Emergency Fund Sweep:**
|
||||
```bash
|
||||
# If server compromise is suspected
|
||||
# Sweep ALL wallet funds to emergency cold storage
|
||||
|
||||
EMERGENCY_DOGE_ADDRESS="your_emergency_cold_wallet_address"
|
||||
|
||||
# Get total spendable balance
|
||||
balance=$(dogecoin-cli getbalance)
|
||||
|
||||
if [ "$(echo "$balance > 0" | bc -l)" = "1" ]; then
|
||||
# Send all funds to emergency address
|
||||
tx_hash=$(dogecoin-cli sendtoaddress "$EMERGENCY_DOGE_ADDRESS" "$balance" "" "" true)
|
||||
echo "Emergency sweep transaction: $tx_hash"
|
||||
echo "Amount swept: $balance DOGE"
|
||||
else
|
||||
echo "No funds to sweep"
|
||||
fi
|
||||
```
|
||||
|
||||
**Wallet Recovery:**
|
||||
```bash
|
||||
# If wallet is corrupted or lost
|
||||
# 1. Stop dogecoind
|
||||
dogecoin-cli stop
|
||||
|
||||
# 2. Restore from backup
|
||||
cp /secure/backup/latest-wallet.dat ~/.dogecoin/wallet.dat
|
||||
|
||||
# 3. Restart and rescan
|
||||
dogecoind
|
||||
sleep 10
|
||||
dogecoin-cli rescanblockchain 0
|
||||
```
|
||||
|
||||
## Advanced Configuration
|
||||
|
||||
### Performance Tuning
|
||||
|
||||
**Dogecoin Node Optimization:**
|
||||
```ini
|
||||
# Enhanced dogecoin.conf for high-volume usage
|
||||
server=1
|
||||
daemon=1
|
||||
|
||||
# RPC optimization
|
||||
rpcuser=secure_user
|
||||
rpcpassword=very_secure_password
|
||||
rpcallowip=127.0.0.1
|
||||
rpcport=22555
|
||||
rpcthreads=4
|
||||
|
||||
# Memory and connection optimization
|
||||
maxconnections=125
|
||||
maxmempool=50
|
||||
dbcache=512
|
||||
|
||||
# Pruned mode with optimal size
|
||||
prune=2000
|
||||
|
||||
# Network optimization
|
||||
addnode=seed.dogechain.info
|
||||
addnode=seed.multidoge.org
|
||||
addnode=seed.dogecoin.com
|
||||
```
|
||||
|
||||
**Database Optimization:**
|
||||
```sql
|
||||
-- Index optimization for DOGE payment queries
|
||||
CREATE INDEX idx_crypto_payment_doge_status ON mps_crypto_payment(coin_type, status) WHERE coin_type = 'DOGE';
|
||||
CREATE INDEX idx_crypto_payment_doge_address ON mps_crypto_payment(address) WHERE coin_type = 'DOGE';
|
||||
CREATE INDEX idx_crypto_payment_doge_created ON mps_crypto_payment(created_at) WHERE coin_type = 'DOGE';
|
||||
```
|
||||
|
||||
### Alternative: Full Node Mode
|
||||
|
||||
If maximum decentralization is required:
|
||||
|
||||
```ini
|
||||
# Full node configuration (removes prune=2000)
|
||||
server=1
|
||||
daemon=1
|
||||
rpcuser=secure_user
|
||||
rpcpassword=very_secure_password
|
||||
rpcallowip=127.0.0.1
|
||||
|
||||
# Full blockchain storage (~50GB)
|
||||
# txindex=1 # Optional: enables transaction indexing
|
||||
```
|
||||
|
||||
**Trade-offs:**
|
||||
- ✅ Complete blockchain history and full validation
|
||||
- ✅ Maximum decentralization and independence
|
||||
- ❌ ~50GB storage requirement
|
||||
- ❌ 8-12 hour initial synchronization time
|
||||
- ❌ Higher bandwidth and CPU usage
|
||||
|
||||
## Production Best Practices
|
||||
|
||||
### Security Checklist
|
||||
|
||||
**Before Production:**
|
||||
- [ ] Change default RPC credentials in `dogecoin.conf`
|
||||
- [ ] Verify firewall rules block external RPC access
|
||||
- [ ] Test backup and recovery procedures
|
||||
- [ ] Configure monitoring and alerting
|
||||
- [ ] Validate cold wallet addresses for all shops
|
||||
- [ ] Test auto-sweep functionality end-to-end
|
||||
|
||||
**Operational Security:**
|
||||
- [ ] Regular wallet backups (daily automated)
|
||||
- [ ] Monitor node synchronization status
|
||||
- [ ] Alert on RPC connection failures
|
||||
- [ ] Monitor auto-sweep operation success rates
|
||||
- [ ] Regular security updates for Dogecoin Core
|
||||
|
||||
### Monitoring Checklist
|
||||
|
||||
**Key Metrics to Track:**
|
||||
- Node synchronization status (blocks vs headers)
|
||||
- RPC response times and error rates
|
||||
- Wallet balance trends and auto-sweep success
|
||||
- Payment processing times and confirmation rates
|
||||
- Network connectivity and peer count
|
||||
|
||||
**Alert Conditions:**
|
||||
- Node falls behind in synchronization (>10 blocks)
|
||||
- RPC service becomes unresponsive
|
||||
- Auto-sweep operations fail
|
||||
- Wallet balance exceeds configured thresholds
|
||||
- Unusual transaction patterns or amounts
|
||||
|
||||
## Conclusion
|
||||
|
||||
Dogecoin integration in Make Post Sell provides a fast, cost-effective payment solution perfect for small-value transactions and rapid confirmation requirements. The pruned mode operation delivers full hot wallet functionality while minimizing infrastructure overhead.
|
||||
|
||||
**Key Benefits for Dogecoin:**
|
||||
|
||||
- **Ultra-low costs** - Perfect for micro-payments and small transactions
|
||||
- **Fast confirmations** - 1-minute blocks for quick customer experience
|
||||
- **Minimal infrastructure** - 2GB pruned mode vs 50GB full blockchain
|
||||
- **Proven reliability** - Bitcoin-based technology with years of testing
|
||||
- **Strong ecosystem** - Excellent exchange support and community backing
|
||||
- **Production-ready** - Comprehensive testing and monitoring capabilities
|
||||
|
||||
Much secure! Such payments! Very production! 🐕🚀
|
||||
|
||||
For general cryptocurrency system information, see `docs/CRYPTO.rst`. For Monero-specific setup, see `docs/MONERO.rst`.
|
||||
758
docs/MONERO.rst
758
docs/MONERO.rst
|
|
@ -1,282 +1,592 @@
|
|||
=====================================
|
||||
Make Post Sell Monero Cash Register
|
||||
Monero (XMR) Integration Guide
|
||||
=====================================
|
||||
|
||||
**The Ultimate Multi-Tenant Cryptocurrency Payment System**
|
||||
**Privacy-First Cryptocurrency Payment Processing**
|
||||
|
||||
Overview
|
||||
========
|
||||
|
||||
Make Post Sell's Monero integration provides a **revolutionary multi-tenant cryptocurrency cash register** that enables any shop to accept Monero payments with enterprise-grade security, automatic fund management, and real-time payment tracking.
|
||||
Make Post Sell's Monero integration provides a comprehensive multi-tenant cryptocurrency payment system that enables any shop to accept XMR payments with complete financial isolation, automatic fund management, and privacy-focused transaction processing.
|
||||
|
||||
Our system is **truly amazing** because it solves the complex challenges of cryptocurrency commerce:
|
||||
**Monero Advantages:**
|
||||
|
||||
- ✅ **Zero-configuration setup** - Shops enable Monero payments with one click
|
||||
- ✅ **Automatic account isolation** - Each shop gets its own dedicated Monero account
|
||||
- ✅ **Real-time payment tracking** - Live confirmation monitoring with risk-based thresholds
|
||||
- ✅ **Automatic fund sweeping** - Hot wallet funds automatically swept to cold storage
|
||||
- ✅ **Multi-tenant security** - Complete financial isolation between shops
|
||||
- ✅ **Production-ready scaling** - Handle unlimited shops and payments
|
||||
- ✅ **Built-in privacy** - All transactions are private by default
|
||||
- ✅ **Subaddress system** - Perfect payment isolation per customer
|
||||
- ✅ **Remote node support** - No blockchain storage requirements
|
||||
- ✅ **Mature infrastructure** - Comprehensive RPC API and wallet tools
|
||||
- ✅ **Multi-tenant ready** - Account-based financial isolation
|
||||
|
||||
Architecture Overview
|
||||
=====================
|
||||
Architecture
|
||||
============
|
||||
|
||||
Our Monero payment system consists of four key components:
|
||||
Multi-Tenant Account System
|
||||
---------------------------
|
||||
|
||||
**1. Hot Wallet Infrastructure**
|
||||
- Single `monero-wallet-rpc` service manages all shops
|
||||
- Each shop gets a dedicated Monero account (isolated finances)
|
||||
- Remote node connectivity (no 150GB+ blockchain storage required)
|
||||
- Secure RPC communication with authentication disabled for internal use
|
||||
Make Post Sell implements a sophisticated account-based isolation system where each shop gets its own dedicated Monero account within a single wallet:
|
||||
|
||||
**2. Multi-Tenant Account Management**
|
||||
- **Account Creation**: Automatic Monero account creation per shop
|
||||
- **Labeling System**: Clean UUID-based labels for machine identification
|
||||
- **Tagging System**: Human-readable shop names for easy management
|
||||
- **Database Tracking**: Account indices stored in `mps_crypto_processor` table
|
||||
**Account Structure:**
|
||||
::
|
||||
|
||||
**3. Payment Processing Pipeline**
|
||||
- **Quote Generation**: Real-time XMR/USD exchange rates with time-limited quotes
|
||||
- **Payment Monitoring**: 20-second polling cycle checking for incoming payments
|
||||
- **Confirmation Tracking**: Risk-based confirmation requirements (petty/mid/high tiers)
|
||||
- **Invoice Finalization**: Automatic product unlocking and email notifications
|
||||
Wallet: make_post_sell_master
|
||||
├── Account 0: Shop A (Digital Downloads)
|
||||
│ ├── Subaddress 0: Primary (sweep destination)
|
||||
│ ├── Subaddress 1: Payment #abc123
|
||||
│ └── Subaddress 2: Payment #def456
|
||||
├── Account 1: Shop B (Physical Goods)
|
||||
│ ├── Subaddress 0: Primary (sweep destination)
|
||||
│ ├── Subaddress 1: Payment #ghi789
|
||||
│ └── Subaddress 2: Payment #jkl012
|
||||
└── Account N: Shop N...
|
||||
|
||||
**4. Auto-Sweep Security**
|
||||
- **Pooled Sweeping**: Multiple payments swept together for efficiency
|
||||
- **Account Isolation**: Funds never mix between shops (dedicated accounts)
|
||||
- **Cold Storage**: Automatic transfer to shop-configured cold wallet addresses
|
||||
- **Network Fee Tracking**: Comprehensive fee monitoring for accounting
|
||||
**Benefits:**
|
||||
- Complete financial isolation between shops
|
||||
- Simplified wallet management (single RPC service)
|
||||
- Automatic account creation when shops enable Monero
|
||||
- Subaddress generation for unique payment addresses
|
||||
|
||||
Multi-Tenant Magic
|
||||
==================
|
||||
Payment Flow
|
||||
============
|
||||
|
||||
What makes our system **truly amazing** is the multi-tenant architecture:
|
||||
Monero-Specific Processing
|
||||
--------------------------
|
||||
|
||||
**Account Isolation**
|
||||
---------------------
|
||||
Each shop operates in complete financial isolation:
|
||||
**1. Shop Onboarding**
|
||||
::
|
||||
|
||||
.. code-block:: text
|
||||
# When shop enables Monero payments:
|
||||
|
||||
# Create dedicated account
|
||||
account_label = f"mps-shop-{shop.uuid_str}"
|
||||
result = client._call("create_account", {"label": account_label})
|
||||
account_index = result.get("account_index")
|
||||
|
||||
# Tag account for identification
|
||||
client._call("tag_accounts", {
|
||||
"tag": shop.name,
|
||||
"accounts": [account_index]
|
||||
})
|
||||
|
||||
# Store account index for future use
|
||||
processor.wallet_label = str(account_index)
|
||||
|
||||
Wallet Structure:
|
||||
├── Account 0: Primary (system)
|
||||
├── Account 1: Shop A (media.unturf.com)
|
||||
├── Account 2: Shop B (example-store.com)
|
||||
├── Account 3: Shop C (crypto-shop.net)
|
||||
└── Account N: Shop N...
|
||||
**2. Payment Address Generation**
|
||||
::
|
||||
|
||||
**Database Schema**
|
||||
-------------------
|
||||
.. code-block:: sql
|
||||
|
||||
-- Shop crypto processor configuration
|
||||
CREATE TABLE mps_crypto_processor (
|
||||
id UUID PRIMARY KEY,
|
||||
shop_id UUID NOT NULL,
|
||||
coin_type VARCHAR(32) NOT NULL, -- 'XMR'
|
||||
wallet_label VARCHAR(128) NOT NULL, -- Account index: "1", "2", "3"...
|
||||
sweep_to_address VARCHAR(256) NOT NULL, -- Cold wallet address
|
||||
enabled BOOLEAN DEFAULT TRUE
|
||||
);
|
||||
|
||||
-- Individual payment tracking
|
||||
CREATE TABLE mps_crypto_payment (
|
||||
id UUID PRIMARY KEY,
|
||||
invoice_id UUID NOT NULL,
|
||||
account_index INTEGER NOT NULL, -- Links to wallet account
|
||||
expected_amount BIGINT NOT NULL, -- Atomic units (piconero)
|
||||
received_amount BIGINT DEFAULT 0,
|
||||
current_confirmations INTEGER DEFAULT 0,
|
||||
status VARCHAR(32), -- pending/received/confirmed
|
||||
swept_amount BIGINT, -- Amount swept to cold storage
|
||||
swept_tx_hash VARCHAR(128) -- Sweep transaction hash
|
||||
);
|
||||
|
||||
**Payment Flow**
|
||||
================
|
||||
|
||||
The complete payment lifecycle demonstrates the system's sophistication:
|
||||
|
||||
**1. Shop Setup (One-Time)**
|
||||
- Shop owner enters cold wallet address
|
||||
- System creates dedicated Monero account automatically
|
||||
- Account tagged with shop domain for identification
|
||||
|
||||
**2. Customer Checkout**
|
||||
- Real-time XMR/USD rate fetched from CoinGecko
|
||||
- Quote generated with 60-minute expiration
|
||||
- Unique subaddress created for this specific payment
|
||||
- Customer sees payment address + amount details
|
||||
# Create unique subaddress for each payment
|
||||
address, subaddr_index = client.create_subaddress(
|
||||
account_index=shop.account_index,
|
||||
label=f"payment-{payment.id}"
|
||||
)
|
||||
|
||||
# Store subaddress details
|
||||
payment.address = address
|
||||
payment.subaddress_index = subaddr_index
|
||||
payment.account_index = shop.account_index
|
||||
|
||||
**3. Payment Monitoring**
|
||||
- Crypto watcher polls every 20 seconds
|
||||
- Checks all pending payments across all shops
|
||||
- Updates confirmation counts as blocks are found
|
||||
- Applies risk-based confirmation requirements:
|
||||
|
||||
- **Petty** (< $10): 2 confirmations
|
||||
- **Mid** ($10-$100): 10 confirmations
|
||||
- **High** (> $100): 20 confirmations
|
||||
::
|
||||
|
||||
**4. Payment Confirmation**
|
||||
- Payment status: ``pending`` → ``received`` → ``confirmed``
|
||||
- Invoice automatically finalized when confirmed
|
||||
- Digital products unlocked instantly
|
||||
- Physical products trigger inventory deduction
|
||||
- Purchase and sale emails sent automatically
|
||||
# Scan specific subaddresses for incoming transfers
|
||||
transfers = client.get_transfers_for_subaddr(
|
||||
account_index=payment.account_index,
|
||||
subaddr_indices=[payment.subaddress_index]
|
||||
)
|
||||
|
||||
# Process incoming transfers
|
||||
for transfer in transfers.get('in', []):
|
||||
if transfer['subaddr_index']['minor'] == payment.subaddress_index:
|
||||
process_incoming_transfer(payment, transfer)
|
||||
|
||||
**5. Auto-Sweep to Cold Storage**
|
||||
- Unlocked funds trigger automatic sweep (funds unlock ~10 blocks after confirmation)
|
||||
- All unlocked funds in shop's account swept together
|
||||
- Efficient: Not 1:1 payment-to-sweep mapping
|
||||
- Secure: Funds immediately moved to shop's cold wallet
|
||||
- Trackable: Sweep transaction hash recorded
|
||||
**4. Confirmation Processing**
|
||||
::
|
||||
|
||||
Risk Management
|
||||
# Check confirmations against requirements
|
||||
wallet_height = client.get_height()
|
||||
confirmations = wallet_height - transfer['height']
|
||||
|
||||
if confirmations >= payment.confirmations_required:
|
||||
payment.status = CryptoPayment.STATUS_CONFIRMED
|
||||
finalize_payment(payment)
|
||||
|
||||
# Trigger auto-sweep
|
||||
auto_sweep_payment(payment, confirmed_amount)
|
||||
|
||||
Installation and Setup
|
||||
======================
|
||||
|
||||
System Requirements
|
||||
-------------------
|
||||
|
||||
**Resource Usage (Production Measurements):**
|
||||
- **With Remote Node**: ~512MB RAM, ~11MB active memory usage
|
||||
- **With Local Node**: ~2GB RAM for monerod + wallet RPC
|
||||
- **Disk Space**: None for remote node, ~150GB for full local blockchain
|
||||
- **Network**: Stable internet connection for RPC communication
|
||||
|
||||
Monero Node Requirements
|
||||
------------------------
|
||||
|
||||
**Option 1: Remote Node (Recommended for Development)**
|
||||
::
|
||||
|
||||
# No blockchain download required
|
||||
# Uses public Monero nodes for blockchain data
|
||||
# Wallet-only operation mode
|
||||
|
||||
# Start wallet RPC with remote node
|
||||
monero-wallet-rpc \
|
||||
--wallet-file=data/mps-wallet \
|
||||
--password-file=data/wallet-password.txt \
|
||||
--rpc-bind-ip=127.0.0.1 \
|
||||
--rpc-bind-port=18083 \
|
||||
--daemon-address=opennode.xmr-tw.org:18089 \
|
||||
--trusted-daemon \
|
||||
--log-level=1
|
||||
|
||||
**Option 2: Local Node (Production)**
|
||||
::
|
||||
|
||||
# Full blockchain synchronization (~150GB)
|
||||
# Maximum privacy and reliability
|
||||
# Independent operation
|
||||
|
||||
# Start local Monero daemon
|
||||
monerod \
|
||||
--data-dir=data/monero-blockchain \
|
||||
--rpc-bind-ip=127.0.0.1 \
|
||||
--rpc-bind-port=18081 \
|
||||
--log-level=1
|
||||
|
||||
# Start wallet RPC with local daemon
|
||||
monero-wallet-rpc \
|
||||
--wallet-file=data/mps-wallet \
|
||||
--password-file=data/wallet-password.txt \
|
||||
--rpc-bind-ip=127.0.0.1 \
|
||||
--rpc-bind-port=18083 \
|
||||
--daemon-address=127.0.0.1:18081 \
|
||||
--trusted-daemon \
|
||||
--log-level=1
|
||||
|
||||
Wallet Creation
|
||||
---------------
|
||||
|
||||
**Initial Wallet Setup:**
|
||||
::
|
||||
|
||||
# Create new wallet (first time only)
|
||||
monero-wallet-cli \
|
||||
--generate-new-wallet=data/mps-wallet \
|
||||
--password-file=data/wallet-password.txt
|
||||
|
||||
# IMPORTANT: Save the 25-word mnemonic seed!
|
||||
# This is your only recovery method for the wallet
|
||||
|
||||
**Configuration Setup:**
|
||||
::
|
||||
|
||||
# Enable Monero payments in configuration
|
||||
app.payments.monero.enabled = False # Default from development.ini
|
||||
|
||||
# Wallet RPC connection (development.ini defaults)
|
||||
monero.rpc_url = http://127.0.0.1:18083/json_rpc
|
||||
monero.rpc_user = test_user # Default from development.ini
|
||||
monero.rpc_pass = test_pass # Default from development.ini
|
||||
monero.account_index = 0 # Default account index
|
||||
|
||||
# Confirmation thresholds based on risk
|
||||
# Note: Payment tier thresholds ($10 and $100) are shop settings
|
||||
monero.confirmations.petty = 2 # Under $10 (default from development.ini)
|
||||
monero.confirmations.mid = 10 # $10-$100 (default from development.ini)
|
||||
monero.confirmations.high = 20 # Over $100 (default from development.ini)
|
||||
|
||||
# Quote and rate settings
|
||||
monero.quote_expiry_seconds = 900 # 15 minutes (default from development.ini)
|
||||
monero.rate_source_url = https://api.coingecko.com/api/v3/simple/price?ids=monero&vs_currencies=usd
|
||||
|
||||
Shop-Specific Settings
|
||||
----------------------
|
||||
|
||||
Each shop can configure payment risk thresholds through the web interface:
|
||||
|
||||
- **Mid Tier Threshold**: Default $10.00 (stored as 1000 cents)
|
||||
- **High Tier Threshold**: Default $100.00 (stored as 10000 cents)
|
||||
- **Quote Expiry**: Default 3600 seconds (60 minutes)
|
||||
|
||||
These thresholds determine which confirmation requirements apply to each payment:
|
||||
|
||||
- Payments under the mid threshold use ``monero.confirmations.petty`` (2 confirmations)
|
||||
- Payments between mid and high use ``monero.confirmations.mid`` (10 confirmations)
|
||||
- Payments over the high threshold use ``monero.confirmations.high`` (20 confirmations)
|
||||
|
||||
**Important**: The $0.64 minimum payment threshold is hardcoded and cannot be changed.
|
||||
This prevents processing payments that would cost more in fees than their value.
|
||||
|
||||
Development Environment
|
||||
=======================
|
||||
|
||||
Quick Start for Developers
|
||||
---------------------------
|
||||
|
||||
**1. Start Monero Wallet (Remote Node)**
|
||||
::
|
||||
|
||||
# Quick development setup with remote node
|
||||
make monero-wallet-remote
|
||||
|
||||
# Or with authentication for testing
|
||||
make monero-wallet-remote-auth
|
||||
|
||||
**2. Start Payment Processing**
|
||||
::
|
||||
|
||||
# Start crypto watcher service
|
||||
make crypto-watcher
|
||||
|
||||
# Or run once for testing
|
||||
make crypto-watcher-once
|
||||
|
||||
**3. Start Web Application**
|
||||
::
|
||||
|
||||
# Start development server
|
||||
make serve
|
||||
|
||||
**Testing and Validation**
|
||||
::
|
||||
|
||||
# Run Monero-specific tests
|
||||
py.test make_post_sell/tests/test_crypto_watcher.py -k "xmr or monero"
|
||||
|
||||
# Test wallet connectivity
|
||||
curl -u "test_user:test_pass" -s -X POST http://127.0.0.1:18083/json_rpc \
|
||||
-H 'Content-Type: application/json' \
|
||||
-d '{"jsonrpc":"2.0","id":"0","method":"get_balance","params":{}}'
|
||||
|
||||
Production Deployment
|
||||
=====================
|
||||
|
||||
Security Configuration
|
||||
-----------------------
|
||||
|
||||
**Wallet Security:**
|
||||
::
|
||||
|
||||
# Production wallet RPC with authentication
|
||||
monero-wallet-rpc \
|
||||
--wallet-file=/secure/path/mps-wallet \
|
||||
--password-file=/secure/path/wallet-password.txt \
|
||||
--rpc-bind-ip=127.0.0.1 \
|
||||
--rpc-bind-port=18083 \
|
||||
--rpc-login=secure_user:very_secure_password \
|
||||
--daemon-address=your.trusted.node:18089 \
|
||||
--trusted-daemon \
|
||||
--log-level=1
|
||||
|
||||
**Network Security:**
|
||||
::
|
||||
|
||||
# Firewall rules (iptables example)
|
||||
# Only allow local connections to wallet RPC
|
||||
iptables -A INPUT -p tcp --dport 18083 -s 127.0.0.1 -j ACCEPT
|
||||
iptables -A INPUT -p tcp --dport 18083 -j REJECT
|
||||
|
||||
# If using local daemon, secure it similarly
|
||||
iptables -A INPUT -p tcp --dport 18081 -s 127.0.0.1 -j ACCEPT
|
||||
iptables -A INPUT -p tcp --dport 18081 -j REJECT
|
||||
|
||||
**File Permissions:**
|
||||
::
|
||||
|
||||
# Secure wallet files and directories
|
||||
chmod 700 /secure/path/
|
||||
chmod 600 /secure/path/mps-wallet*
|
||||
chmod 600 /secure/path/wallet-password.txt
|
||||
|
||||
# Run wallet RPC as dedicated user
|
||||
useradd -r -s /bin/false monero-wallet
|
||||
chown monero-wallet:monero-wallet /secure/path/mps-wallet*
|
||||
|
||||
Cold Storage Integration
|
||||
------------------------
|
||||
|
||||
**Shop Configuration:**
|
||||
Each shop must configure their own cold wallet address for automatic sweep destinations:
|
||||
|
||||
::
|
||||
|
||||
# Shop settings form validation
|
||||
def validate_monero_address(address):
|
||||
# Standard address validation
|
||||
if len(address) == 95 and address.startswith('4'):
|
||||
return True
|
||||
# Integrated address validation
|
||||
if len(address) == 106 and address.startswith('4'):
|
||||
return True
|
||||
return False
|
||||
|
||||
**Auto-Sweep Configuration:**
|
||||
::
|
||||
|
||||
# Automatic sweep after payment confirmation
|
||||
def auto_sweep_payment(payment, confirmed_amount):
|
||||
fee_reserve = Decimal('0.001') # Keep for future transactions
|
||||
sweep_amount = confirmed_amount - fee_reserve
|
||||
|
||||
if sweep_amount > 0:
|
||||
# Sweep to shop's configured cold wallet
|
||||
result = client._call("transfer", {
|
||||
"destinations": [{
|
||||
"amount": int(sweep_amount * ATOMIC_UNITS),
|
||||
"address": payment.shop.cold_wallet_address
|
||||
}],
|
||||
"account_index": payment.account_index,
|
||||
"priority": 1
|
||||
})
|
||||
|
||||
log.sweep_operation(payment, "Auto-sweep successful",
|
||||
result['tx_hash'], sweep_amount)
|
||||
|
||||
Monitoring and Maintenance
|
||||
==========================
|
||||
|
||||
Wallet Health Monitoring
|
||||
-------------------------
|
||||
|
||||
**Key Metrics:**
|
||||
::
|
||||
|
||||
# Wallet synchronization status
|
||||
curl -s -X POST http://127.0.0.1:18083/json_rpc \
|
||||
-d '{"jsonrpc":"2.0","id":"0","method":"get_height"}' | \
|
||||
python3 -c "import sys,json; print(f\"Height: {json.load(sys.stdin)['result']['height']}\")"
|
||||
|
||||
# Account balances across all shops
|
||||
curl -s -X POST http://127.0.0.1:18083/json_rpc \
|
||||
-d '{"jsonrpc":"2.0","id":"0","method":"get_balance","params":{"all_accounts":true}}'
|
||||
|
||||
**Automated Health Checks:**
|
||||
::
|
||||
|
||||
#!/bin/bash
|
||||
# wallet_health_check.sh
|
||||
|
||||
# Check wallet RPC connectivity
|
||||
if ! curl -s --max-time 5 http://127.0.0.1:18083/json_rpc > /dev/null; then
|
||||
echo "CRITICAL: Wallet RPC not responding"
|
||||
exit 2
|
||||
fi
|
||||
|
||||
# Check wallet synchronization
|
||||
height=$(curl -s -X POST http://127.0.0.1:18083/json_rpc \
|
||||
-d '{"jsonrpc":"2.0","id":"0","method":"get_height"}' | \
|
||||
python3 -c "import sys,json; print(json.load(sys.stdin)['result']['height'])")
|
||||
|
||||
if [ "$height" -lt 1 ]; then
|
||||
echo "WARNING: Wallet not synchronized"
|
||||
exit 1
|
||||
fi
|
||||
|
||||
echo "OK: Wallet healthy, height: $height"
|
||||
|
||||
Log Analysis
|
||||
------------
|
||||
|
||||
**Monero-Specific Log Patterns:**
|
||||
::
|
||||
|
||||
# Monitor Monero payment processing
|
||||
grep "XMR.*confirmed" logs/crypto_watcher.log
|
||||
|
||||
# Check auto-sweep operations
|
||||
grep "XMR.*swept to cold storage" logs/crypto_watcher.log
|
||||
|
||||
# Monitor wallet connectivity
|
||||
grep "Monero RPC" logs/crypto_watcher.log
|
||||
|
||||
# Account creation tracking
|
||||
grep "account.*created.*shop" logs/crypto_watcher.log
|
||||
|
||||
**Performance Monitoring:**
|
||||
::
|
||||
|
||||
# Payment processing time analysis
|
||||
grep "Payment.*XMR.*state transition" logs/crypto_watcher.log | \
|
||||
awk '{print $1, $2, $NF}' | \
|
||||
sort
|
||||
|
||||
**Error Analysis:**
|
||||
::
|
||||
|
||||
# Common Monero error patterns
|
||||
grep -E "(wallet.*locked|daemon.*not.*reachable|insufficient.*balance)" logs/crypto_watcher.log
|
||||
|
||||
# RPC communication errors
|
||||
grep "Monero RPC connection error" logs/crypto_watcher.log
|
||||
|
||||
Troubleshooting
|
||||
===============
|
||||
|
||||
Our system implements sophisticated risk management:
|
||||
Common Issues
|
||||
-------------
|
||||
|
||||
**Confirmation Tiers**
|
||||
----------------------
|
||||
Shop-configurable thresholds determine confirmation requirements:
|
||||
**Wallet Synchronization Problems:**
|
||||
::
|
||||
|
||||
.. code-block:: ini
|
||||
# Check daemon connectivity
|
||||
curl -s -X POST http://127.0.0.1:18081/json_rpc \
|
||||
-d '{"jsonrpc":"2.0","id":"0","method":"get_info"}'
|
||||
|
||||
# Force wallet refresh
|
||||
curl -s -X POST http://127.0.0.1:18083/json_rpc \
|
||||
-d '{"jsonrpc":"2.0","id":"0","method":"refresh"}'
|
||||
|
||||
# Shop settings (per-shop configuration)
|
||||
payment_risk_threshold_mid_cents = 1000 # $10.00
|
||||
payment_risk_threshold_high_cents = 10000 # $100.00
|
||||
**Account/Subaddress Issues:**
|
||||
::
|
||||
|
||||
# Global Monero confirmation requirements
|
||||
monero.confirmations.petty = 2 # < $10: Fast confirmation
|
||||
monero.confirmations.mid = 10 # $10-$100: Standard security
|
||||
monero.confirmations.high = 20 # > $100: Maximum security
|
||||
# List all accounts
|
||||
curl -s -X POST http://127.0.0.1:18083/json_rpc \
|
||||
-d '{"jsonrpc":"2.0","id":"0","method":"get_accounts"}'
|
||||
|
||||
# Get subaddresses for specific account
|
||||
curl -s -X POST http://127.0.0.1:18083/json_rpc \
|
||||
-d '{"jsonrpc":"2.0","id":"0","method":"get_address","params":{"account_index":1}}'
|
||||
|
||||
**Overpayment Handling**
|
||||
------------------------
|
||||
- Automatic overpayment detection
|
||||
- Optional refund to customer-provided address
|
||||
- Graceful handling when no refund address provided
|
||||
- Status tracking: ``confirmed_overpaid`` for accounting
|
||||
**Payment Tracking Issues:**
|
||||
::
|
||||
|
||||
**Quote Expiration**
|
||||
# Check transfers for specific account/subaddress
|
||||
curl -s -X POST http://127.0.0.1:18083/json_rpc \
|
||||
-d '{"jsonrpc":"2.0","id":"0","method":"get_transfers","params":{"in":true,"account_index":1,"subaddr_indices":[1]}}'
|
||||
|
||||
**Recovery Procedures:**
|
||||
::
|
||||
|
||||
# Wallet recovery from mnemonic seed
|
||||
monero-wallet-cli \
|
||||
--restore-deterministic-wallet \
|
||||
--wallet-file=data/mps-wallet-restored \
|
||||
--password-file=data/wallet-password.txt
|
||||
|
||||
# Account recreation (if accounts are lost)
|
||||
# Note: Account indices must match original setup
|
||||
for shop in shops_with_xmr:
|
||||
curl -X POST http://127.0.0.1:18083/json_rpc \
|
||||
-d "{\"jsonrpc\":\"2.0\",\"id\":\"0\",\"method\":\"create_account\",\"params\":{\"label\":\"mps-shop-${shop.uuid}\"}}"
|
||||
|
||||
Emergency Procedures
|
||||
--------------------
|
||||
- Time-limited quotes prevent rate manipulation
|
||||
- Configurable expiration (default: 60 minutes)
|
||||
- Quotes expire and require new checkout if time limit exceeded
|
||||
- Expired payment refund system (when refund address available)
|
||||
|
||||
Why This Is Amazing
|
||||
===================
|
||||
**Emergency Fund Sweep:**
|
||||
::
|
||||
|
||||
**For Shop Owners**
|
||||
- **Zero Crypto Knowledge Required**: Enable Monero payments with one click
|
||||
- **Complete Financial Control**: Direct payments to your cold wallet
|
||||
- **Instant Setup**: No wallet management or blockchain syncing
|
||||
- **Enterprise Security**: Bank-grade isolation and automatic fund management
|
||||
- **Global Reach**: Accept payments from anywhere, anytime
|
||||
# If server compromise is suspected
|
||||
# Sweep ALL accounts to emergency cold storage
|
||||
|
||||
EMERGENCY_ADDRESS="your_emergency_cold_wallet_address"
|
||||
|
||||
# Get all accounts
|
||||
accounts=$(curl -s -X POST http://127.0.0.1:18083/json_rpc \
|
||||
-d '{"jsonrpc":"2.0","id":"0","method":"get_accounts"}' | \
|
||||
python3 -c "import sys,json; accounts=json.load(sys.stdin)['result']['subaddress_accounts']; print(','.join(str(acc['account_index']) for acc in accounts))")
|
||||
|
||||
# Sweep each account
|
||||
for account in $(echo $accounts | tr ',' ' '); do
|
||||
curl -X POST http://127.0.0.1:18083/json_rpc \
|
||||
-d "{\"jsonrpc\":\"2.0\",\"id\":\"0\",\"method\":\"sweep_all\",\"params\":{\"address\":\"$EMERGENCY_ADDRESS\",\"account_index\":$account}}"
|
||||
done
|
||||
|
||||
**For Customers**
|
||||
- **True Privacy**: Monero's built-in privacy features
|
||||
- **Low Fees**: Minimal network fees compared to traditional payments
|
||||
- **Fast Confirmation**: Risk-based confirmation for quick small purchases
|
||||
- **Global Access**: No geographic restrictions or banking requirements
|
||||
**Wallet Backup and Recovery:**
|
||||
::
|
||||
|
||||
**For Developers**
|
||||
- **Production Ready**: Handle unlimited shops and payment volume
|
||||
- **Clean Architecture**: Well-separated concerns and modular design
|
||||
- **Comprehensive APIs**: Full payment lifecycle management
|
||||
- **Monitoring Built-in**: Real-time payment tracking and status updates
|
||||
- **Extensible Design**: Easy to add new cryptocurrencies
|
||||
# Regular backup procedures
|
||||
# 1. Backup wallet files
|
||||
cp data/mps-wallet* /secure/backup/location/
|
||||
|
||||
# 2. Backup account configuration
|
||||
curl -s -X POST http://127.0.0.1:18083/json_rpc \
|
||||
-d '{"jsonrpc":"2.0","id":"0","method":"get_accounts"}' > account_backup.json
|
||||
|
||||
# 3. Export key images (for recovery)
|
||||
curl -s -X POST http://127.0.0.1:18083/json_rpc \
|
||||
-d '{"jsonrpc":"2.0","id":"0","method":"export_key_images"}' > key_images_backup.json
|
||||
|
||||
**For Platform Operators**
|
||||
- **Single Infrastructure**: One wallet serves unlimited shops
|
||||
- **Automatic Scaling**: No per-shop setup or maintenance required
|
||||
- **Security by Design**: Account isolation prevents fund mixing
|
||||
- **Operational Excellence**: Automated deployment and monitoring
|
||||
Advanced Configuration
|
||||
======================
|
||||
|
||||
Subaddress Isolation and Refund Processing
|
||||
===========================================
|
||||
Performance Tuning
|
||||
-------------------
|
||||
|
||||
Our Monero implementation uses **subaddress isolation** to ensure complete security between customer payments and enable safe refund processing without affecting other transactions.
|
||||
**Wallet RPC Optimization:**
|
||||
::
|
||||
|
||||
**Account and Subaddress Hierarchy**
|
||||
------------------------------------
|
||||
Each payment operates within a strict isolation model:
|
||||
# Increase RPC timeout for large operations
|
||||
monero-wallet-rpc \
|
||||
--wallet-file=data/mps-wallet \
|
||||
--rpc-bind-port=18083 \
|
||||
--daemon-address=remote.node:18089 \
|
||||
--trusted-daemon \
|
||||
--max-concurrency=4 \
|
||||
--log-level=1
|
||||
|
||||
.. code-block:: text
|
||||
**Memory Management:**
|
||||
::
|
||||
|
||||
Monero Wallet Structure:
|
||||
├── Account 0: System (unused)
|
||||
├── Account 1: Shop A
|
||||
│ ├── Subaddress 0: Shop's primary address
|
||||
│ ├── Subaddress 1: Customer Payment #1
|
||||
│ ├── Subaddress 2: Customer Payment #2
|
||||
│ └── Subaddress N: Customer Payment #N
|
||||
├── Account 2: Shop B
|
||||
│ ├── Subaddress 0: Shop's primary address
|
||||
│ ├── Subaddress 1: Customer Payment #1
|
||||
│ └── ...
|
||||
└── Account N: Shop N...
|
||||
# For high-volume shops, optimize memory usage
|
||||
# Reduce transaction history retention
|
||||
curl -X POST http://127.0.0.1:18083/json_rpc \
|
||||
-d '{"jsonrpc":"2.0","id":"0","method":"set_tx_notes","params":{"txids":["old_tx_id"],"notes":[""]}}'
|
||||
|
||||
**Payment Isolation Security**
|
||||
------------------------------
|
||||
Each crypto payment receives a unique subaddress within the shop's account, ensuring:
|
||||
**Database Optimization:**
|
||||
::
|
||||
|
||||
- **Complete Financial Isolation**: Funds from different customers never mix
|
||||
- **Targeted Refunds**: Specific payments can be refunded without affecting others
|
||||
- **Safe Sweep Operations**: Only intended funds are moved during sweeps
|
||||
- **Audit Trail**: Each payment's funds are traceable throughout the lifecycle
|
||||
# Index optimization for crypto payment queries
|
||||
CREATE INDEX idx_crypto_payment_account_subaddr ON mps_crypto_payment(account_index, subaddress_index);
|
||||
CREATE INDEX idx_crypto_payment_status_coin ON mps_crypto_payment(status, coin_type);
|
||||
CREATE INDEX idx_crypto_payment_shop_created ON mps_crypto_payment(shop_id, created_at);
|
||||
|
||||
**Refund Processing Flow**
|
||||
--------------------------
|
||||
When refunds are required (expired quotes, out-of-stock items, overpayments):
|
||||
Multi-Node Setup
|
||||
----------------
|
||||
|
||||
1. **Customer Refund**: Uses ``sweep_single`` to transfer customer's funds to their refund address
|
||||
2. **Restocking Fee Sweep**: Uses ``sweep_all`` with specific ``subaddr_indices`` to collect restocking fees
|
||||
3. **Transaction Ordering**: Refunds are always processed BEFORE restocking fee sweeps
|
||||
**Load Balancing Multiple Nodes:**
|
||||
::
|
||||
|
||||
.. code-block:: python
|
||||
# Primary node configuration
|
||||
monero-wallet-rpc \
|
||||
--wallet-file=data/mps-wallet-primary \
|
||||
--rpc-bind-port=18083 \
|
||||
--daemon-address=node1.example.com:18089
|
||||
|
||||
# Backup node configuration
|
||||
monero-wallet-rpc \
|
||||
--wallet-file=data/mps-wallet-backup \
|
||||
--rpc-bind-port=18084 \
|
||||
--daemon-address=node2.example.com:18089
|
||||
|
||||
# Safe refund processing with subaddress isolation
|
||||
|
||||
# Step 1: Refund customer (specific subaddress)
|
||||
refund_result = monero_rpc.sweep_single(
|
||||
address=crypto_payment.refund_address,
|
||||
account_index=crypto_payment.account_index,
|
||||
subaddr_indices=[crypto_payment.subaddress_index]
|
||||
)
|
||||
|
||||
# Step 2: Sweep restocking fee (same subaddress)
|
||||
restocking_result = monero_rpc.sweep_all(
|
||||
address=shop_cold_wallet,
|
||||
account_index=crypto_payment.account_index,
|
||||
subaddr_indices=[crypto_payment.subaddress_index]
|
||||
)
|
||||
**Failover Configuration:**
|
||||
::
|
||||
|
||||
**Why sweep_all is Safe**
|
||||
-------------------------
|
||||
The ``sweep_all`` operation with ``subaddr_indices`` parameter ensures security:
|
||||
# Application configuration for failover
|
||||
monero.rpc_url.primary = http://localhost:18083
|
||||
monero.rpc_url.backup = http://localhost:18084
|
||||
monero.failover_timeout = 10
|
||||
monero.retry_attempts = 3
|
||||
|
||||
- **Without subaddr_indices**: Would sweep ALL funds in the account (DANGEROUS)
|
||||
- **With subaddr_indices**: Only sweeps funds from specified subaddresses (SAFE)
|
||||
Conclusion
|
||||
==========
|
||||
|
||||
This allows us to:
|
||||
- Collect restocking fees from specific failed payments
|
||||
- Leave other customers' payments untouched
|
||||
- Maintain complete isolation between transactions
|
||||
Monero integration in Make Post Sell provides a robust, privacy-focused payment solution that scales from single-shop installations to large multi-tenant deployments. The account-based isolation system ensures complete financial separation while maintaining operational efficiency through shared infrastructure.
|
||||
|
||||
**Network Fee Considerations**
|
||||
------------------------------
|
||||
Monero network fees are automatically calculated and deducted:
|
||||
The comprehensive monitoring, automatic fund management, and recovery procedures make this a production-ready solution for businesses requiring privacy-focused cryptocurrency payments with enterprise-grade reliability.
|
||||
|
||||
- **Standard Fee**: ~0.0001 XMR for most transactions
|
||||
- **Automatic Deduction**: Fees are subtracted from the swept amount
|
||||
- **Fee Tracking**: All network fees are recorded for accounting
|
||||
- **Confirmation Requirements**: Funds must be unlocked (~10 confirmations) before sweeping
|
||||
**Key Benefits for Monero:**
|
||||
|
||||
This subaddress isolation architecture ensures that our multi-tenant Monero system maintains enterprise-grade security while providing the flexibility needed for complex refund scenarios.
|
||||
- **Privacy-first design** - All transactions are private by default
|
||||
- **Perfect isolation** - Subaddress system ensures payment separation
|
||||
- **Scalable architecture** - Single wallet serving unlimited shops
|
||||
- **Remote node support** - No blockchain storage requirements
|
||||
- **Comprehensive monitoring** - Full payment lifecycle tracking
|
||||
- **Automatic fund management** - Immediate sweep to cold storage
|
||||
- **Production-tested** - Extensive test coverage and real-world validation
|
||||
|
||||
The Result: A truly **amazing** multi-tenant cryptocurrency cash register that makes Monero payments as easy as traditional payment processing, while maintaining the privacy, security, and decentralization that makes cryptocurrency revolutionary.
|
||||
|
||||
**Welcome to the future of commerce.** 🚀
|
||||
For general cryptocurrency system information, see ``docs/CRYPTO.rst``. For Dogecoin-specific setup, see ``docs/DOGECOIN.md``.
|
||||
Loading…
Add table
Add a link
Reference in a new issue