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package api
import (
"encoding/json"
"io"
"net/http"
"strconv"
"time"
"github.com/seaweedfs/seaweedfs/telemetry/proto"
"github.com/seaweedfs/seaweedfs/telemetry/server/storage"
protobuf "google.golang.org/protobuf/proto"
)
type Handler struct {
storage *storage.PrometheusStorage
}
func NewHandler(storage *storage.PrometheusStorage) *Handler {
return &Handler{storage: storage}
}
func (h *Handler) CollectTelemetry(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodPost {
http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
return
}
contentType := r.Header.Get("Content-Type")
// Only accept protobuf content type
if contentType != "application/x-protobuf" && contentType != "application/protobuf" {
http.Error(w, "Content-Type must be application/x-protobuf", http.StatusUnsupportedMediaType)
return
}
// Read protobuf request
body, err := io.ReadAll(r.Body)
if err != nil {
http.Error(w, "Failed to read request body", http.StatusBadRequest)
return
}
req := &proto.TelemetryRequest{}
if err := protobuf.Unmarshal(body, req); err != nil {
http.Error(w, "Invalid protobuf data", http.StatusBadRequest)
return
}
data := req.Data
if data == nil {
http.Error(w, "Missing telemetry data", http.StatusBadRequest)
return
}
// Validate required fields
if data.ClusterId == "" || data.Version == "" || data.Os == "" {
http.Error(w, "Missing required fields", http.StatusBadRequest)
return
}
// Set timestamp if not provided
if data.Timestamp == 0 {
data.Timestamp = time.Now().Unix()
}
// Store the telemetry data
if err := h.storage.StoreTelemetry(data); err != nil {
http.Error(w, "Failed to store data", http.StatusInternalServerError)
return
}
// Return protobuf response
resp := &proto.TelemetryResponse{
Success: true,
Message: "Telemetry data received",
}
respData, err := protobuf.Marshal(resp)
if err != nil {
http.Error(w, "Failed to marshal response", http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/x-protobuf")
w.WriteHeader(http.StatusOK)
w.Write(respData)
}
func (h *Handler) GetStats(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodGet {
http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
return
}
stats, err := h.storage.GetStats()
if err != nil {
http.Error(w, "Failed to get stats", http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(stats)
}
func (h *Handler) GetInstances(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodGet {
http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
return
}
limitStr := r.URL.Query().Get("limit")
limit := 100 // default
if limitStr != "" {
if l, err := strconv.Atoi(limitStr); err == nil && l > 0 && l <= 1000 {
limit = l
}
}
instances, err := h.storage.GetInstances(limit)
if err != nil {
http.Error(w, "Failed to get instances", http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(instances)
}
func (h *Handler) GetMetrics(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodGet {
http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
return
}
daysStr := r.URL.Query().Get("days")
days := 30 // default
if daysStr != "" {
if d, err := strconv.Atoi(daysStr); err == nil && d > 0 && d <= 365 {
days = d
}
}
metrics, err := h.storage.GetMetrics(days)
if err != nil {
http.Error(w, "Failed to get metrics", http.StatusInternalServerError)
return
}
w.Header().Set("Content-Type", "application/json")
json.NewEncoder(w).Encode(metrics)
}
|
