139 lines
3.2 KiB
Go
139 lines
3.2 KiB
Go
package webserver
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import (
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"net/http"
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"path/filepath"
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"time"
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"github.com/gorilla/mux"
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)
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/* This file has the methods that pass out actual content. */
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// Returns the main index file.
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// If index.html becomes a template, this is where it can be compiled.
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func (s *Server) handleIndex(w http.ResponseWriter, r *http.Request) {
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http.ServeFile(w, r, filepath.Join(s.HTMLPath, "index.html"))
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}
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// Arbitrary /health handler.
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func (s *Server) handleHealth(w http.ResponseWriter, _ *http.Request) {
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s.handleDone(w, []byte("OK"), mimeHTML)
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}
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// Returns static files from static-files path. /css, /js, /img (/images, /image).
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func (s *Server) handleStatic(w http.ResponseWriter, r *http.Request) {
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switch v := mux.Vars(r)["sub"]; v {
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case "image", "img":
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dir := http.Dir(filepath.Join(s.HTMLPath, "static", "images"))
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http.StripPrefix("/"+v, http.FileServer(dir)).ServeHTTP(w, r)
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default: // images, js, css, etc
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dir := http.Dir(filepath.Join(s.HTMLPath, "static", v))
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http.StripPrefix("/"+v, http.FileServer(dir)).ServeHTTP(w, r)
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}
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}
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// Returns poller configs and/or plugins. /api/v1/config.
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func (s *Server) handleConfig(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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switch vars["sub"] {
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case "":
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data := map[string]any{
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"inputs": s.Collect.Inputs(),
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"outputs": s.Collect.Outputs(),
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"poller": s.Collect.Poller(),
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"uptime": int(time.Since(s.start).Round(time.Second).Seconds()),
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}
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s.handleJSON(w, data)
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case "plugins":
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data := map[string][]string{
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"inputs": s.Collect.Inputs(),
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"outputs": s.Collect.Outputs(),
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}
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s.handleJSON(w, data)
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default:
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s.handleMissing(w, r)
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}
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}
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// Returns an output plugin's data: /api/v1/output/{output}.
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func (s *Server) handleOutput(w http.ResponseWriter, r *http.Request) {
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vars := mux.Vars(r)
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c := s.plugins.getOutput(vars["output"])
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if c == nil {
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s.handleMissing(w, r)
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return
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}
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c.RLock()
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defer c.RUnlock()
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switch val := vars["value"]; vars["sub"] {
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default:
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s.handleJSON(w, c.Config)
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case "eventgroups":
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s.handleJSON(w, c.Events.Groups(val))
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case "events":
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switch events, ok := c.Events[val]; {
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case val == "":
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s.handleJSON(w, c.Events)
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case ok:
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s.handleJSON(w, events)
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default:
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s.handleMissing(w, r)
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}
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case "counters":
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if val == "" {
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s.handleJSON(w, c.Counter)
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} else {
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s.handleJSON(w, map[string]int64{val: c.Counter[val]})
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}
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}
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}
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// Returns an input plugin's data: /api/v1/input/{input}.
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func (s *Server) handleInput(w http.ResponseWriter, r *http.Request) { //nolint:cyclop
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vars := mux.Vars(r)
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c := s.plugins.getInput(vars["input"])
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if c == nil {
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s.handleMissing(w, r)
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return
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}
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c.RLock()
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defer c.RUnlock()
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switch val := vars["value"]; vars["sub"] {
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default:
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s.handleJSON(w, c.Config)
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case "eventgroups":
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s.handleJSON(w, c.Events.Groups(val))
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case "events":
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switch events, ok := c.Events[val]; {
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case val == "":
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s.handleJSON(w, c.Events)
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case ok:
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s.handleJSON(w, events)
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default:
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s.handleMissing(w, r)
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}
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case "sites":
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s.handleJSON(w, c.Sites)
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case "devices":
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s.handleJSON(w, c.Devices.Filter(val))
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case "clients":
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s.handleJSON(w, c.Clients.Filter(val))
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case "counters":
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if val != "" {
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s.handleJSON(w, map[string]int64{val: c.Counter[val]})
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} else {
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s.handleJSON(w, c.Counter)
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}
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}
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}
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