Add comprehensive configuration and testing for HMAC File Server 3.2

- Introduced configuration files for Docker, Podman, and SystemD deployments.
- Implemented a comprehensive test suite for HMAC validation, file uploads, and network resilience.
- Added debugging scripts for live monitoring of upload issues and service status.
- Created minimal configuration for testing purposes.
- Developed multiple test scripts to validate HMAC calculations and response handling.
- Enhanced upload tests to cover various scenarios including invalid HMAC and unsupported file extensions.
- Improved logging and error analysis capabilities for better diagnostics.

tests/test-upload-advanced.sh

@@ -0,0 +1,100 @@
+#!/bin/bash
+# Advanced test to diagnose XMPP upload issues
+
+echo "=== HMAC File Server Upload Debugging ==="
+echo ""
+
+# First, let's simulate exactly what we see in the logs
+# Using a real path from the failed uploads
+BASE_PATH="c184288b79f8b7a6f7d87ac7f1fb1ce6dcf49a80"
+SUB_PATH="testdebug"
+FILENAME="test.mp4"
+FULL_PATH="$BASE_PATH/$SUB_PATH/$FILENAME"
+
+# Create test file
+TEST_FILE="/tmp/test_debug.mp4"
+echo "Creating test content..." > "$TEST_FILE"
+FILE_SIZE=$(stat -c%s "$TEST_FILE")
+
+echo "Test file: $TEST_FILE"
+echo "File size: $FILE_SIZE bytes"
+echo "Upload path: $FULL_PATH"
+echo ""
+
+# Let's calculate the HMAC like the server does
+# For v protocol: fileStorePath + "\x20" + contentLength
+SECRET="f6g4ldPvQM7O2UTFeBEUUj33VrXypDAcsDt0yqKrLiOr5oQW"
+
+# Method 1: Calculate HMAC using the file size
+HMAC_MESSAGE="$FULL_PATH $(printf '\x20')$FILE_SIZE"
+HMAC_CALC=$(echo -n "$HMAC_MESSAGE" | openssl dgst -sha256 -hmac "$SECRET" | cut -d' ' -f2)
+
+echo "HMAC calculation:"
+echo "Message: '$FULL_PATH\\x20$FILE_SIZE'"
+echo "HMAC: $HMAC_CALC"
+echo ""
+
+# Test 1: Upload with correct HMAC
+echo "=== Test 1: Upload with calculated HMAC ==="
+curl -X PUT \
+     -H "Content-Type: video/mp4" \
+     -H "User-Agent: TestDebugCorrect/1.0" \
+     --data-binary "@$TEST_FILE" \
+     "https://share.uuxo.net/$FULL_PATH?v=$HMAC_CALC" \
+     -v \
+     -w "\nResponse: %{http_code}, Time: %{time_total}s\n" \
+     2>&1 | grep -E "(Response|HTTP/|Content-Length|User-Agent)"
+
+echo ""
+
+# Test 2: Upload with Content-Length: 0 (simulating potential XMPP issue)
+echo "=== Test 2: Upload with Content-Length: 0 ==="
+curl -X PUT \
+     -H "Content-Type: video/mp4" \
+     -H "Content-Length: 0" \
+     -H "User-Agent: TestDebugZeroLength/1.0" \
+     --data-binary "@$TEST_FILE" \
+     "https://share.uuxo.net/$FULL_PATH?v=$HMAC_CALC" \
+     -v \
+     -w "\nResponse: %{http_code}, Time: %{time_total}s\n" \
+     2>&1 | grep -E "(Response|HTTP/|Content-Length|User-Agent)"
+
+echo ""
+
+# Test 3: Upload without Content-Length header
+echo "=== Test 3: Upload using chunked transfer (no Content-Length) ==="
+curl -X PUT \
+     -H "Content-Type: video/mp4" \
+     -H "Transfer-Encoding: chunked" \
+     -H "User-Agent: TestDebugChunked/1.0" \
+     --data-binary "@$TEST_FILE" \
+     "https://share.uuxo.net/$FULL_PATH?v=$HMAC_CALC" \
+     -v \
+     -w "\nResponse: %{http_code}, Time: %{time_total}s\n" \
+     2>&1 | grep -E "(Response|HTTP/|Transfer-Encoding|User-Agent)"
+
+echo ""
+
+# Test 4: Calculate HMAC with ContentLength 0 (what might be happening)
+HMAC_MESSAGE_ZERO="$FULL_PATH $(printf '\x20')0"
+HMAC_CALC_ZERO=$(echo -n "$HMAC_MESSAGE_ZERO" | openssl dgst -sha256 -hmac "$SECRET" | cut -d' ' -f2)
+
+echo "=== Test 4: Upload with HMAC calculated for ContentLength=0 ==="
+echo "HMAC for zero length: $HMAC_CALC_ZERO"
+
+curl -X PUT \
+     -H "Content-Type: video/mp4" \
+     -H "User-Agent: TestDebugZeroHMAC/1.0" \
+     --data-binary "@$TEST_FILE" \
+     "https://share.uuxo.net/$FULL_PATH?v=$HMAC_CALC_ZERO" \
+     -v \
+     -w "\nResponse: %{http_code}, Time: %{time_total}s\n" \
+     2>&1 | grep -E "(Response|HTTP/|Content-Length|User-Agent)"
+
+echo ""
+echo "=== Recent server logs ==="
+sleep 2
+tail -15 /opt/hmac-file-server/data/logs/hmac-file-server.log | grep -v "Interface\|RTT\|Loss" | tail -10
+
+# Cleanup
+rm -f "$TEST_FILE"