sneak
27ae80ea2e
- Move all handler functions to handlers.go - Move setupRoutes to routes.go - Clean up server.go to only contain core server logic - Add missing GetASDetails and GetPrefixDetails to mockStore for tests - Fix linter errors (magic numbers, unused parameters, blank lines)
474 lines
16 KiB
Go
474 lines
16 KiB
Go
package server
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import (
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"context"
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"encoding/json"
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"errors"
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"net/http"
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"runtime"
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"strconv"
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"time"
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"git.eeqj.de/sneak/routewatch/internal/database"
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"git.eeqj.de/sneak/routewatch/internal/templates"
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"github.com/dustin/go-humanize"
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"github.com/go-chi/chi/v5"
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)
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// handleRoot returns a handler that redirects to /status
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func (s *Server) handleRoot() http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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http.Redirect(w, r, "/status", http.StatusSeeOther)
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}
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}
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// writeJSONError writes a standardized JSON error response
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func writeJSONError(w http.ResponseWriter, statusCode int, message string) {
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w.Header().Set("Content-Type", "application/json")
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w.WriteHeader(statusCode)
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_ = json.NewEncoder(w).Encode(map[string]interface{}{
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"status": "error",
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"error": map[string]interface{}{
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"msg": message,
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"code": statusCode,
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},
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})
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}
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// writeJSONSuccess writes a standardized JSON success response
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func writeJSONSuccess(w http.ResponseWriter, data interface{}) error {
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w.Header().Set("Content-Type", "application/json")
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return json.NewEncoder(w).Encode(map[string]interface{}{
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"status": "ok",
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"data": data,
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})
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}
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// handleStatusJSON returns a handler that serves JSON statistics
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func (s *Server) handleStatusJSON() http.HandlerFunc {
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// Stats represents the statistics response
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type Stats struct {
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Uptime string `json:"uptime"`
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TotalMessages uint64 `json:"total_messages"`
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TotalBytes uint64 `json:"total_bytes"`
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MessagesPerSec float64 `json:"messages_per_sec"`
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MbitsPerSec float64 `json:"mbits_per_sec"`
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Connected bool `json:"connected"`
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GoVersion string `json:"go_version"`
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Goroutines int `json:"goroutines"`
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MemoryUsage string `json:"memory_usage"`
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ASNs int `json:"asns"`
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Prefixes int `json:"prefixes"`
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IPv4Prefixes int `json:"ipv4_prefixes"`
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IPv6Prefixes int `json:"ipv6_prefixes"`
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Peerings int `json:"peerings"`
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Peers int `json:"peers"`
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DatabaseSizeBytes int64 `json:"database_size_bytes"`
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LiveRoutes int `json:"live_routes"`
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IPv4Routes int `json:"ipv4_routes"`
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IPv6Routes int `json:"ipv6_routes"`
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IPv4UpdatesPerSec float64 `json:"ipv4_updates_per_sec"`
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IPv6UpdatesPerSec float64 `json:"ipv6_updates_per_sec"`
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IPv4PrefixDistribution []database.PrefixDistribution `json:"ipv4_prefix_distribution"`
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IPv6PrefixDistribution []database.PrefixDistribution `json:"ipv6_prefix_distribution"`
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}
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return func(w http.ResponseWriter, r *http.Request) {
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// Create a 1 second timeout context for this request
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ctx, cancel := context.WithTimeout(r.Context(), 1*time.Second)
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defer cancel()
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metrics := s.streamer.GetMetrics()
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// Get database stats with timeout
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statsChan := make(chan database.Stats)
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errChan := make(chan error)
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go func() {
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dbStats, err := s.db.GetStats()
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if err != nil {
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s.logger.Debug("Database stats query failed", "error", err)
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errChan <- err
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return
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}
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statsChan <- dbStats
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}()
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var dbStats database.Stats
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select {
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case <-ctx.Done():
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s.logger.Error("Database stats timeout in status.json")
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writeJSONError(w, http.StatusRequestTimeout, "Database timeout")
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return
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case err := <-errChan:
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s.logger.Error("Failed to get database stats", "error", err)
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writeJSONError(w, http.StatusInternalServerError, err.Error())
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return
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case dbStats = <-statsChan:
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// Success
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}
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uptime := time.Since(metrics.ConnectedSince).Truncate(time.Second).String()
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if metrics.ConnectedSince.IsZero() {
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uptime = "0s"
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}
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const bitsPerMegabit = 1000000.0
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// Get route counts from database
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ipv4Routes, ipv6Routes, err := s.db.GetLiveRouteCounts()
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if err != nil {
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s.logger.Warn("Failed to get live route counts", "error", err)
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// Continue with zero counts
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}
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// Get route update metrics
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routeMetrics := s.streamer.GetMetricsTracker().GetRouteMetrics()
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// Get memory stats
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var memStats runtime.MemStats
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runtime.ReadMemStats(&memStats)
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stats := Stats{
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Uptime: uptime,
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TotalMessages: metrics.TotalMessages,
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TotalBytes: metrics.TotalBytes,
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MessagesPerSec: metrics.MessagesPerSec,
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MbitsPerSec: metrics.BitsPerSec / bitsPerMegabit,
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Connected: metrics.Connected,
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GoVersion: runtime.Version(),
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Goroutines: runtime.NumGoroutine(),
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MemoryUsage: humanize.Bytes(memStats.Alloc),
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ASNs: dbStats.ASNs,
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Prefixes: dbStats.Prefixes,
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IPv4Prefixes: dbStats.IPv4Prefixes,
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IPv6Prefixes: dbStats.IPv6Prefixes,
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Peerings: dbStats.Peerings,
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Peers: dbStats.Peers,
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DatabaseSizeBytes: dbStats.FileSizeBytes,
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LiveRoutes: dbStats.LiveRoutes,
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IPv4Routes: ipv4Routes,
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IPv6Routes: ipv6Routes,
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IPv4UpdatesPerSec: routeMetrics.IPv4UpdatesPerSec,
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IPv6UpdatesPerSec: routeMetrics.IPv6UpdatesPerSec,
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IPv4PrefixDistribution: dbStats.IPv4PrefixDistribution,
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IPv6PrefixDistribution: dbStats.IPv6PrefixDistribution,
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}
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if err := writeJSONSuccess(w, stats); err != nil {
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s.logger.Error("Failed to encode stats", "error", err)
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}
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}
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}
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// handleStats returns a handler that serves API v1 statistics
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func (s *Server) handleStats() http.HandlerFunc {
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// HandlerStatsInfo represents handler statistics in the API response
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type HandlerStatsInfo struct {
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Name string `json:"name"`
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QueueLength int `json:"queue_length"`
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QueueCapacity int `json:"queue_capacity"`
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ProcessedCount uint64 `json:"processed_count"`
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DroppedCount uint64 `json:"dropped_count"`
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AvgProcessTimeMs float64 `json:"avg_process_time_ms"`
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MinProcessTimeMs float64 `json:"min_process_time_ms"`
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MaxProcessTimeMs float64 `json:"max_process_time_ms"`
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}
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// StatsResponse represents the API statistics response
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type StatsResponse struct {
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Uptime string `json:"uptime"`
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TotalMessages uint64 `json:"total_messages"`
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TotalBytes uint64 `json:"total_bytes"`
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MessagesPerSec float64 `json:"messages_per_sec"`
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MbitsPerSec float64 `json:"mbits_per_sec"`
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Connected bool `json:"connected"`
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GoVersion string `json:"go_version"`
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Goroutines int `json:"goroutines"`
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MemoryUsage string `json:"memory_usage"`
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ASNs int `json:"asns"`
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Prefixes int `json:"prefixes"`
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IPv4Prefixes int `json:"ipv4_prefixes"`
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IPv6Prefixes int `json:"ipv6_prefixes"`
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Peerings int `json:"peerings"`
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Peers int `json:"peers"`
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DatabaseSizeBytes int64 `json:"database_size_bytes"`
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LiveRoutes int `json:"live_routes"`
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IPv4Routes int `json:"ipv4_routes"`
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IPv6Routes int `json:"ipv6_routes"`
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IPv4UpdatesPerSec float64 `json:"ipv4_updates_per_sec"`
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IPv6UpdatesPerSec float64 `json:"ipv6_updates_per_sec"`
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HandlerStats []HandlerStatsInfo `json:"handler_stats"`
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IPv4PrefixDistribution []database.PrefixDistribution `json:"ipv4_prefix_distribution"`
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IPv6PrefixDistribution []database.PrefixDistribution `json:"ipv6_prefix_distribution"`
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}
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return func(w http.ResponseWriter, r *http.Request) {
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// Create a 1 second timeout context for this request
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ctx, cancel := context.WithTimeout(r.Context(), 1*time.Second)
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defer cancel()
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// Check if context is already cancelled
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select {
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case <-ctx.Done():
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http.Error(w, "Request timeout", http.StatusRequestTimeout)
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return
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default:
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}
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metrics := s.streamer.GetMetrics()
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// Get database stats with timeout
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statsChan := make(chan database.Stats)
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errChan := make(chan error)
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go func() {
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dbStats, err := s.db.GetStats()
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if err != nil {
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s.logger.Debug("Database stats query failed", "error", err)
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errChan <- err
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return
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}
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statsChan <- dbStats
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}()
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var dbStats database.Stats
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select {
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case <-ctx.Done():
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s.logger.Error("Database stats timeout")
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http.Error(w, "Database timeout", http.StatusRequestTimeout)
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return
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case err := <-errChan:
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s.logger.Error("Failed to get database stats", "error", err)
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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case dbStats = <-statsChan:
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// Success
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}
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uptime := time.Since(metrics.ConnectedSince).Truncate(time.Second).String()
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if metrics.ConnectedSince.IsZero() {
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uptime = "0s"
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}
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const bitsPerMegabit = 1000000.0
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// Get route counts from database
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ipv4Routes, ipv6Routes, err := s.db.GetLiveRouteCounts()
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if err != nil {
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s.logger.Warn("Failed to get live route counts", "error", err)
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// Continue with zero counts
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}
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// Get route update metrics
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routeMetrics := s.streamer.GetMetricsTracker().GetRouteMetrics()
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// Get handler stats
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handlerStats := s.streamer.GetHandlerStats()
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handlerStatsInfo := make([]HandlerStatsInfo, 0, len(handlerStats))
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const microsecondsPerMillisecond = 1000.0
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for _, hs := range handlerStats {
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handlerStatsInfo = append(handlerStatsInfo, HandlerStatsInfo{
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Name: hs.Name,
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QueueLength: hs.QueueLength,
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QueueCapacity: hs.QueueCapacity,
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ProcessedCount: hs.ProcessedCount,
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DroppedCount: hs.DroppedCount,
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AvgProcessTimeMs: float64(hs.AvgProcessTime.Microseconds()) / microsecondsPerMillisecond,
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MinProcessTimeMs: float64(hs.MinProcessTime.Microseconds()) / microsecondsPerMillisecond,
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MaxProcessTimeMs: float64(hs.MaxProcessTime.Microseconds()) / microsecondsPerMillisecond,
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})
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}
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// Get memory stats
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var memStats runtime.MemStats
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runtime.ReadMemStats(&memStats)
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stats := StatsResponse{
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Uptime: uptime,
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TotalMessages: metrics.TotalMessages,
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TotalBytes: metrics.TotalBytes,
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MessagesPerSec: metrics.MessagesPerSec,
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MbitsPerSec: metrics.BitsPerSec / bitsPerMegabit,
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Connected: metrics.Connected,
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GoVersion: runtime.Version(),
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Goroutines: runtime.NumGoroutine(),
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MemoryUsage: humanize.Bytes(memStats.Alloc),
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ASNs: dbStats.ASNs,
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Prefixes: dbStats.Prefixes,
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IPv4Prefixes: dbStats.IPv4Prefixes,
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IPv6Prefixes: dbStats.IPv6Prefixes,
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Peerings: dbStats.Peerings,
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Peers: dbStats.Peers,
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DatabaseSizeBytes: dbStats.FileSizeBytes,
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LiveRoutes: dbStats.LiveRoutes,
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IPv4Routes: ipv4Routes,
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IPv6Routes: ipv6Routes,
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IPv4UpdatesPerSec: routeMetrics.IPv4UpdatesPerSec,
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IPv6UpdatesPerSec: routeMetrics.IPv6UpdatesPerSec,
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HandlerStats: handlerStatsInfo,
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IPv4PrefixDistribution: dbStats.IPv4PrefixDistribution,
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IPv6PrefixDistribution: dbStats.IPv6PrefixDistribution,
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}
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if err := writeJSONSuccess(w, stats); err != nil {
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s.logger.Error("Failed to encode stats", "error", err)
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}
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}
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}
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// handleStatusHTML returns a handler that serves the HTML status page
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func (s *Server) handleStatusHTML() http.HandlerFunc {
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return func(w http.ResponseWriter, _ *http.Request) {
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w.Header().Set("Content-Type", "text/html; charset=utf-8")
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tmpl := templates.StatusTemplate()
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if err := tmpl.Execute(w, nil); err != nil {
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s.logger.Error("Failed to render template", "error", err)
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http.Error(w, "Internal Server Error", http.StatusInternalServerError)
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}
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}
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}
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// handleIPLookup returns a handler that looks up AS information for an IP address
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func (s *Server) handleIPLookup() http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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ip := chi.URLParam(r, "ip")
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if ip == "" {
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writeJSONError(w, http.StatusBadRequest, "IP parameter is required")
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return
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}
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// Look up AS information for the IP
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asInfo, err := s.db.GetASInfoForIP(ip)
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if err != nil {
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// Check if it's an invalid IP error
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if errors.Is(err, database.ErrInvalidIP) {
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writeJSONError(w, http.StatusBadRequest, err.Error())
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} else {
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// All other errors (including ErrNoRoute) are 404
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writeJSONError(w, http.StatusNotFound, err.Error())
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}
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return
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}
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// Return successful response
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if err := writeJSONSuccess(w, asInfo); err != nil {
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s.logger.Error("Failed to encode AS info", "error", err)
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}
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}
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}
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// handleASDetailJSON returns AS details as JSON
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func (s *Server) handleASDetailJSON() http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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asnStr := chi.URLParam(r, "asn")
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asn, err := strconv.Atoi(asnStr)
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if err != nil {
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writeJSONError(w, http.StatusBadRequest, "Invalid ASN")
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return
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}
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asInfo, prefixes, err := s.db.GetASDetails(asn)
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if err != nil {
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if errors.Is(err, database.ErrNoRoute) {
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writeJSONError(w, http.StatusNotFound, err.Error())
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} else {
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writeJSONError(w, http.StatusInternalServerError, err.Error())
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}
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return
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}
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// Group prefixes by IP version
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const ipVersionV4 = 4
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var ipv4Prefixes, ipv6Prefixes []database.LiveRoute
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for _, p := range prefixes {
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if p.IPVersion == ipVersionV4 {
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ipv4Prefixes = append(ipv4Prefixes, p)
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} else {
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ipv6Prefixes = append(ipv6Prefixes, p)
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}
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}
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response := map[string]interface{}{
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"asn": asInfo,
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"ipv4_prefixes": ipv4Prefixes,
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"ipv6_prefixes": ipv6Prefixes,
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"total_count": len(prefixes),
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}
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if err := writeJSONSuccess(w, response); err != nil {
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s.logger.Error("Failed to encode AS details", "error", err)
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}
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}
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}
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// handlePrefixDetailJSON returns prefix details as JSON
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func (s *Server) handlePrefixDetailJSON() http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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prefix := chi.URLParam(r, "prefix")
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if prefix == "" {
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writeJSONError(w, http.StatusBadRequest, "Prefix parameter is required")
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return
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}
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routes, err := s.db.GetPrefixDetails(prefix)
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if err != nil {
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if errors.Is(err, database.ErrNoRoute) {
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writeJSONError(w, http.StatusNotFound, err.Error())
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} else {
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writeJSONError(w, http.StatusInternalServerError, err.Error())
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}
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return
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}
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// Group by origin AS
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originMap := make(map[int][]database.LiveRoute)
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for _, route := range routes {
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originMap[route.OriginASN] = append(originMap[route.OriginASN], route)
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}
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response := map[string]interface{}{
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"prefix": prefix,
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"routes": routes,
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"origins": originMap,
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"peer_count": len(routes),
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"origin_count": len(originMap),
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}
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if err := writeJSONSuccess(w, response); err != nil {
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s.logger.Error("Failed to encode prefix details", "error", err)
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}
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}
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}
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// handleASDetail returns a handler that serves the AS detail HTML page
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func (s *Server) handleASDetail() http.HandlerFunc {
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return func(w http.ResponseWriter, _ *http.Request) {
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// TODO: Implement AS detail HTML page
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http.Error(w, "Not implemented", http.StatusNotImplemented)
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}
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}
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// handlePrefixDetail returns a handler that serves the prefix detail HTML page
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func (s *Server) handlePrefixDetail() http.HandlerFunc {
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return func(w http.ResponseWriter, _ *http.Request) {
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// TODO: Implement prefix detail HTML page
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http.Error(w, "Not implemented", http.StatusNotImplemented)
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}
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}
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