v0.1.0-alpha

Changes:
- Implement bootstrapping library for managing several concurrent internal services
- Refactor concurrency model for connections/logical clients and their associated I/O
- Refactor server context singleton
- Refactor error handling
    - Most errors are now gracefully sent to the FSD client directly encoded as an $ER packet,
      enhancing visibility and debugging
    - Most errors are now rightfully treated as non-fatal
- Refactor package/dependency graph
- Refactor calling conventions/interfaces for many packages
- Refactor database package
- Refactor post office

Features:
- Add VATSIM-esque HTTP/JSON "data feed"
- Add ephemeral in-memory database option
- Add user management REST API
- Add improved web interface
- Add MySQL support (drop SQLite support)

test/stress_test.go

@@ -0,0 +1,121 @@
+package test
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"github.com/renorris/openfsd/bootstrap"
+	"github.com/renorris/openfsd/database"
+	"github.com/renorris/openfsd/protocol"
+	"github.com/renorris/openfsd/servercontext"
+	"github.com/stretchr/testify/assert"
+	"io"
+	"log"
+	"math/rand"
+	"net"
+	"os"
+	"sync"
+	"testing"
+	"time"
+)
+
+func TestStressTest(t *testing.T) {
+	// Setup config for testing environment
+	if err := os.Setenv("IN_MEMORY_DB", "true"); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.Setenv("PLAINTEXT_PASSWORDS", "true"); err != nil {
+		t.Fatal(err)
+	}
+
+	// Start the server
+	ctx, cancelCtx := context.WithCancel(context.Background())
+	b := bootstrap.NewDefaultBootstrap()
+	if err := b.Start(ctx); err != nil {
+		t.Fatal(err)
+	}
+
+	defer func() {
+		cancelCtx()
+		<-b.Done
+	}()
+
+	user := database.FSDUserRecord{
+		Email:         "example@mail.com",
+		FirstName:     "Test User",
+		LastName:      "Test User",
+		Password:      "54321",
+		FSDPassword:   "12345",
+		NetworkRating: protocol.NetworkRatingOBS,
+		PilotRating:   0,
+		CreatedAt:     time.Now(),
+		UpdatedAt:     time.Now(),
+	}
+
+	var err error
+	user.CID, err = user.Insert(servercontext.DB())
+	assert.Nil(t, err)
+
+	wg := sync.WaitGroup{}
+	for ci := 100001; ci < 100128; ci++ {
+		wg.Add(1)
+		time.Sleep(20 * time.Millisecond)
+		go func(ci int) {
+			defer wg.Done()
+
+			log.Printf("Connecting %d", ci)
+
+			var conn net.Conn
+			if conn, err = net.Dial("tcp4", "localhost:6809"); err != nil {
+				t.Fatal(err)
+			}
+
+			go func() {
+				io.Copy(io.Discard, conn)
+			}()
+
+			if _, err = io.Copy(conn, bytes.NewReader([]byte(fmt.Sprintf("$ID%d:SERVER:88e4:vPilot:3:8:%d:99999:1234567890\r\n", ci, user.CID)))); err != nil {
+				t.Fatal(err)
+			}
+
+			if _, err = io.Copy(conn, bytes.NewReader([]byte(fmt.Sprintf("#AP%d:SERVER:%d:12345:1:101:2:Briner\r\n", ci, user.CID)))); err != nil {
+				t.Fatal(err)
+			}
+
+			ticker := time.NewTicker(200 * time.Millisecond)
+			defer ticker.Stop()
+
+			for i := range 100 {
+				randLat := randFloats(-90, 90, 1)[0]
+				randLon := randFloats(-180, 180, 1)[0]
+
+				if i%5 == 0 {
+					if _, err = io.Copy(conn, bytes.NewReader([]byte(fmt.Sprintf("@S:%d:1200:1:%.6f:%.6f:16:0:4060:336\r\n", ci, randLat, randLon)))); err != nil {
+						t.Fatal(err)
+					}
+				}
+
+				if _, err = io.Copy(conn, bytes.NewReader([]byte(fmt.Sprintf("^%d:%.6f:%.6f:20.20:8.62:944:-0.0001:-0.0017:0.0000:0.0000:0.0000:0.0000:0.00\r\n", ci, randLat, randLon)))); err != nil {
+					t.Fatal(err)
+				}
+
+				<-ticker.C
+			}
+
+			if _, err = io.Copy(conn, bytes.NewReader([]byte(fmt.Sprintf("#DP%d:%d\r\n", ci, user.CID)))); err != nil {
+				t.Fatal(err)
+			}
+
+		}(ci)
+	}
+
+	wg.Wait()
+}
+
+func randFloats(min, max float64, n int) []float64 {
+	res := make([]float64, n)
+	for i := range res {
+		res[i] = min + rand.Float64()*(max-min)
+	}
+	return res
+}