platform: modularize api/gui, add docs-tests-web foundation, and refresh root config

2026-03-26 22:40:54 +03:00
parent 0e2d7f61ea
commit 6a56d734c2
562 changed files with 70151 additions and 16423 deletions
--- a/selective-vpn-api/app/dns_settings_benchmark_handler.go
+++ b/selective-vpn-api/app/dns_settings_benchmark_handler.go
@@ -0,0 +1,140 @@
+package app
+
+import (
+	"encoding/json"
+	"io"
+	"net/http"
+	dnscfgpkg "selective-vpn-api/app/dnscfg"
+	"sort"
+	"sync"
+	"time"
+)
+
+func handleDNSBenchmark(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodPost {
+		http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	var req DNSBenchmarkRequest
+	if r.Body != nil {
+		defer r.Body.Close()
+		if err := json.NewDecoder(io.LimitReader(r.Body, 1<<20)).Decode(&req); err != nil && err != io.EOF {
+			http.Error(w, "bad json", http.StatusBadRequest)
+			return
+		}
+	}
+
+	upstreams := normalizeBenchmarkUpstreams(req.Upstreams)
+	if len(upstreams) == 0 {
+		pool := loadDNSUpstreamPoolState()
+		if len(pool) > 0 {
+			tmp := make([]DNSBenchmarkUpstream, 0, len(pool))
+			for _, item := range pool {
+				tmp = append(tmp, DNSBenchmarkUpstream{Addr: item.Addr, Enabled: item.Enabled})
+			}
+			upstreams = normalizeBenchmarkUpstreams(tmp)
+		}
+		if len(upstreams) == 0 {
+			cfg := loadDNSUpstreamsConf()
+			upstreams = dnscfgpkg.NormalizeBenchmarkUpstreamStrings([]string{
+				cfg.Default1,
+				cfg.Default2,
+				cfg.Meta1,
+				cfg.Meta2,
+			}, normalizeDNSUpstream)
+		}
+	}
+	if len(upstreams) == 0 {
+		http.Error(w, "no upstreams", http.StatusBadRequest)
+		return
+	}
+
+	domains := dnscfgpkg.NormalizeBenchmarkDomains(req.Domains)
+	if len(domains) == 0 {
+		domains = append(domains, dnsBenchmarkDefaultDomains...)
+	}
+
+	timeoutMS := req.TimeoutMS
+	if timeoutMS <= 0 {
+		timeoutMS = 1800
+	}
+	if timeoutMS < 300 {
+		timeoutMS = 300
+	}
+	if timeoutMS > 5000 {
+		timeoutMS = 5000
+	}
+
+	attempts := req.Attempts
+	if attempts <= 0 {
+		attempts = 1
+	}
+	if attempts > 3 {
+		attempts = 3
+	}
+	profile := dnscfgpkg.NormalizeBenchmarkProfile(req.Profile)
+	if profile == dnsBenchmarkProfileLoad && attempts < 2 {
+		// Load profile should emulate real resolver pressure.
+		attempts = 2
+	}
+
+	concurrency := req.Concurrency
+	if concurrency <= 0 {
+		concurrency = 6
+	}
+	if concurrency < 1 {
+		concurrency = 1
+	}
+	if concurrency > 32 {
+		concurrency = 32
+	}
+	if concurrency > len(upstreams) {
+		concurrency = len(upstreams)
+	}
+	opts := dnscfgpkg.MakeDNSBenchmarkOptions(profile, concurrency)
+
+	results := make([]DNSBenchmarkResult, 0, len(upstreams))
+	var mu sync.Mutex
+	var wg sync.WaitGroup
+	sem := make(chan struct{}, concurrency)
+	timeout := time.Duration(timeoutMS) * time.Millisecond
+
+	for _, upstream := range upstreams {
+		wg.Add(1)
+		sem <- struct{}{}
+		go func(upstream string) {
+			defer wg.Done()
+			defer func() { <-sem }()
+			result := benchmarkDNSUpstream(upstream, domains, timeout, attempts, opts)
+			mu.Lock()
+			results = append(results, result)
+			mu.Unlock()
+		}(upstream)
+	}
+	wg.Wait()
+
+	sort.Slice(results, func(i, j int) bool {
+		if results[i].Score == results[j].Score {
+			if results[i].AvgMS == results[j].AvgMS {
+				if results[i].OK == results[j].OK {
+					return results[i].Upstream < results[j].Upstream
+				}
+				return results[i].OK > results[j].OK
+			}
+			return results[i].AvgMS < results[j].AvgMS
+		}
+		return results[i].Score > results[j].Score
+	})
+
+	resp := DNSBenchmarkResponse{
+		Results:           results,
+		DomainsUsed:       domains,
+		TimeoutMS:         timeoutMS,
+		AttemptsPerDomain: attempts,
+		Profile:           profile,
+	}
+	resp.RecommendedDefault = benchmarkTopN(results, 2, upstreams)
+	resp.RecommendedMeta = benchmarkTopN(results, 2, upstreams)
+	writeJSON(w, http.StatusOK, resp)
+}