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

selective-vpn-api/app/vpn_handlers_status.go

@@ -0,0 +1,96 @@
+package app
+
+import (
+	"net/http"
+	"os"
+	"strings"
+)
+
+// аккуратный разбор лога autoloop: игнорим "route:", смотрим status
+func parseAutoloopStatus(lines []string) (word, raw string) {
+	for i := len(lines) - 1; i >= 0; i-- {
+		line := strings.TrimSpace(lines[i])
+		if line == "" {
+			continue
+		}
+		if idx := strings.Index(line, "autoloop:"); idx >= 0 {
+			line = strings.TrimSpace(line[idx+len("autoloop:"):])
+		}
+		lower := strings.ToLower(line)
+
+		// route: default dev ... - нам неинтересно
+		if strings.HasPrefix(lower, "route: ") {
+			continue
+		}
+
+		switch {
+		case strings.Contains(lower, "status: connected"),
+			strings.Contains(lower, "after connect: connected"):
+			return "CONNECTED", line
+		case strings.Contains(lower, "status: reconnecting"):
+			return "RECONNECTING", line
+		case strings.Contains(lower, "status: disconnected"),
+			strings.Contains(lower, "still disconnected"):
+			return "DISCONNECTED", line
+		case strings.Contains(lower, "timeout"),
+			strings.Contains(lower, "failed"):
+			return "ERROR", line
+		}
+	}
+	return "unknown", ""
+}
+
+func handleVPNAutoloopStatus(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+	lines := tailFile(autoloopLogPath, 200)
+	word, raw := parseAutoloopStatus(lines)
+	writeJSON(w, http.StatusOK, map[string]any{
+		"raw_text":    raw,
+		"status_word": word,
+	})
+}
+
+func handleVPNStatus(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	// desired location
+	loc := ""
+	if data, err := os.ReadFile(desiredLocation); err == nil {
+		loc = parseStoredVPNLocationPrimary(string(data))
+	}
+
+	// unit state
+	stdout, _, _, err := runCommand("systemctl", "is-active", adgvpnUnit)
+	unitState := strings.TrimSpace(stdout)
+	if err != nil || unitState == "" {
+		unitState = "unknown"
+	}
+
+	// автолуп
+	lines := tailFile(autoloopLogPath, 200)
+	word, raw := parseAutoloopStatus(lines)
+
+	writeJSON(w, http.StatusOK, map[string]any{
+		"desired_location": loc,
+		"status_word":      word,
+		"raw_text":         raw,
+		"unit_state":       unitState,
+	})
+}
+
+func parseStoredVPNLocationPrimary(raw string) string {
+	v := strings.TrimSpace(raw)
+	if v == "" {
+		return ""
+	}
+	if p := strings.SplitN(v, "|", 2); len(p) == 2 {
+		return strings.TrimSpace(p[0])
+	}
+	return v
+}