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http.go
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package server
import (
"fmt"
"net/http"
"time"
"github.com/evcc-io/evcc/core/site"
"github.com/evcc-io/evcc/server/assets"
"github.com/evcc-io/evcc/util"
"github.com/evcc-io/evcc/util/telemetry"
"github.com/go-http-utils/etag"
"github.com/gorilla/handlers"
"github.com/gorilla/mux"
)
type route struct {
Methods []string
Pattern string
HandlerFunc http.HandlerFunc
}
// HTTPd wraps an http.Server and adds the root router
type HTTPd struct {
*http.Server
}
// NewHTTPd creates HTTP server with configured routes for loadpoint
func NewHTTPd(addr string, hub *SocketHub) *HTTPd {
router := mux.NewRouter().StrictSlash(true)
// websocket
router.HandleFunc("/ws", socketHandler(hub))
// static - individual handlers per root and folders
static := router.PathPrefix("/").Subrouter()
static.Use(handlers.CompressHandler)
static.Use(handlers.CompressHandler, func(h http.Handler) http.Handler {
return etag.Handler(h, false)
})
static.HandleFunc("/", indexHandler())
for _, dir := range []string{"assets", "meta"} {
static.PathPrefix("/" + dir).Handler(http.FileServer(http.FS(assets.Web)))
}
static.PathPrefix("/i18n").Handler(http.StripPrefix("/i18n", http.FileServer(http.FS(assets.I18n))))
srv := &HTTPd{
Server: &http.Server{
Addr: addr,
Handler: router,
ReadTimeout: 5 * time.Second,
WriteTimeout: 10 * time.Second,
IdleTimeout: 120 * time.Second,
ErrorLog: log.ERROR,
},
}
srv.SetKeepAlivesEnabled(true)
return srv
}
// Router returns the main router
func (s *HTTPd) Router() *mux.Router {
return s.Handler.(*mux.Router)
}
// RegisterSiteHandlers connects the http handlers to the site
func (s *HTTPd) RegisterSiteHandlers(site site.API, cache *util.Cache) {
router := s.Server.Handler.(*mux.Router)
// api
api := router.PathPrefix("/api").Subrouter()
api.Use(jsonHandler)
api.Use(handlers.CompressHandler)
api.Use(handlers.CORS(
handlers.AllowedHeaders([]string{"Content-Type"}),
))
// site api
routes := map[string]route{
"health": {[]string{"GET"}, "/health", healthHandler(site)},
"state": {[]string{"GET"}, "/state", stateHandler(cache)},
"config": {[]string{"GET"}, "/config/templates/{class:[a-z]+}", templatesHandler},
"products": {[]string{"GET"}, "/config/products/{class:[a-z]+}", productsHandler},
"devices": {[]string{"GET"}, "/config/devices/{class:[a-z]+}", devicesHandler},
"device": {[]string{"GET"}, "/config/devices/{class:[a-z]+}/{id:[0-9.]+}", deviceConfigHandler},
"devicestatus": {[]string{"GET"}, "/config/devices/{class:[a-z]+}/{name:[a-zA-Z0-9_.:-]+}/status", deviceStatusHandler},
"site": {[]string{"GET"}, "/config/site", siteHandler(site)},
"dirty": {[]string{"GET"}, "/config/dirty", boolGetHandler(ConfigDirty)},
"updatesite": {[]string{"PUT", "OPTIONS"}, "/config/site", updateSiteHandler(site)},
"newdevice": {[]string{"POST", "OPTIONS"}, "/config/devices/{class:[a-z]+}", newDeviceHandler},
"updatedevice": {[]string{"PUT", "OPTIONS"}, "/config/devices/{class:[a-z]+}/{id:[0-9.]+}", updateDeviceHandler},
"deletedevice": {[]string{"DELETE", "OPTIONS"}, "/config/devices/{class:[a-z]+}/{id:[0-9.]+}", deleteDeviceHandler},
"testconfig": {[]string{"POST", "OPTIONS"}, "/config/test/{class:[a-z]+}", testConfigHandler},
"testmerged": {[]string{"POST", "OPTIONS"}, "/config/test/{class:[a-z]+}/merge/{id:[0-9.]+}", testConfigHandler},
"buffersoc": {[]string{"POST", "OPTIONS"}, "/buffersoc/{value:[0-9.]+}", floatHandler(site.SetBufferSoc, site.GetBufferSoc)},
"bufferstartsoc": {[]string{"POST", "OPTIONS"}, "/bufferstartsoc/{value:[0-9.]+}", floatHandler(site.SetBufferStartSoc, site.GetBufferStartSoc)},
"batterydischargecontrol": {[]string{"POST", "OPTIONS"}, "/batterydischargecontrol/{value:[a-z]+}", boolHandler(site.SetBatteryDischargeControl, site.GetBatteryDischargeControl)},
"prioritysoc": {[]string{"POST", "OPTIONS"}, "/prioritysoc/{value:[0-9.]+}", floatHandler(site.SetPrioritySoc, site.GetPrioritySoc)},
"residualpower": {[]string{"POST", "OPTIONS"}, "/residualpower/{value:[-0-9.]+}", floatHandler(site.SetResidualPower, site.GetResidualPower)},
"smartcost": {[]string{"POST", "OPTIONS"}, "/smartcostlimit/{value:[-0-9.]+}", floatHandler(site.SetSmartCostLimit, site.GetSmartCostLimit)},
"tariff": {[]string{"GET"}, "/tariff/{tariff:[a-z]+}", tariffHandler(site)},
"sessions": {[]string{"GET"}, "/sessions", sessionHandler},
"updatesession": {[]string{"PUT", "OPTIONS"}, "/session/{id:[0-9]+}", updateSessionHandler},
"deletesession": {[]string{"DELETE", "OPTIONS"}, "/session/{id:[0-9]+}", deleteSessionHandler},
"telemetry": {[]string{"GET"}, "/settings/telemetry", boolGetHandler(telemetry.Enabled)},
"telemetry2": {[]string{"POST", "OPTIONS"}, "/settings/telemetry/{value:[a-z]+}", boolHandler(telemetry.Enable, telemetry.Enabled)},
}
for _, r := range routes {
api.Methods(r.Methods...).Path(r.Pattern).Handler(r.HandlerFunc)
}
// vehicle api
vehicles := map[string]route{
"minsoc": {[]string{"POST", "OPTIONS"}, "/vehicles/{name:[a-zA-Z0-9_.:-]+}/minsoc/{value:[0-9]+}", minSocHandler(site)},
"limitsoc": {[]string{"POST", "OPTIONS"}, "/vehicles/{name:[a-zA-Z0-9_.:-]+}/limitsoc/{value:[0-9]+}", limitSocHandler(site)},
"plan": {[]string{"POST", "OPTIONS"}, "/vehicles/{name:[a-zA-Z0-9_.:-]+}/plan/soc/{value:[0-9]+}/{time:[0-9TZ:.-]+}", planSocHandler(site)},
"plan2": {[]string{"DELETE", "OPTIONS"}, "/vehicles/{name:[a-zA-Z0-9_.:-]+}/plan/soc", planSocRemoveHandler(site)},
// config ui
// "mode": {[]string{"POST", "OPTIONS"}, "/mode/{value:[a-z]+}", chargeModeHandler(v)},
// "mincurrent": {[]string{"POST", "OPTIONS"}, "/mincurrent/{value:[0-9.]+}", floatHandler(pass(v.SetMinCurrent), v.GetMinCurrent)},
// "maxcurrent": {[]string{"POST", "OPTIONS"}, "/maxcurrent/{value:[0-9.]+}", floatHandler(pass(v.SetMaxCurrent), v.GetMaxCurrent)},
// "phases": {[]string{"POST", "OPTIONS"}, "/phases/{value:[0-9]+}", intHandler(pass(v.SetMinSoc), v.GetMinSoc)},
}
for _, r := range vehicles {
api.Methods(r.Methods...).Path(r.Pattern).Handler(r.HandlerFunc)
}
// loadpoint api
for id, lp := range site.Loadpoints() {
api := api.PathPrefix(fmt.Sprintf("/loadpoints/%d", id+1)).Subrouter()
routes := map[string]route{
"mode": {[]string{"POST", "OPTIONS"}, "/mode/{value:[a-z]+}", chargeModeHandler(lp)},
"limitsoc": {[]string{"POST", "OPTIONS"}, "/limitsoc/{value:[0-9]+}", intHandler(pass(lp.SetLimitSoc), lp.GetLimitSoc)},
"limitenergy": {[]string{"POST", "OPTIONS"}, "/limitenergy/{value:[0-9.]+}", floatHandler(pass(lp.SetLimitEnergy), lp.GetLimitEnergy)},
"mincurrent": {[]string{"POST", "OPTIONS"}, "/mincurrent/{value:[0-9.]+}", floatHandler(lp.SetMinCurrent, lp.GetMinCurrent)},
"maxcurrent": {[]string{"POST", "OPTIONS"}, "/maxcurrent/{value:[0-9.]+}", floatHandler(lp.SetMaxCurrent, lp.GetMaxCurrent)},
"phases": {[]string{"POST", "OPTIONS"}, "/phases/{value:[0-9]+}", phasesHandler(lp)},
"plan": {[]string{"GET"}, "/plan", planHandler(lp)},
"planpreview": {[]string{"GET"}, "/plan/preview/{type:(?:soc|energy)}/{value:[0-9.]+}/{time:[0-9TZ:.-]+}", planPreviewHandler(lp)},
"planenergy": {[]string{"POST", "OPTIONS"}, "/plan/energy/{value:[0-9.]+}/{time:[0-9TZ:.-]+}", planEnergyHandler(lp)},
"planenergy2": {[]string{"DELETE", "OPTIONS"}, "/plan/energy", planRemoveHandler(lp)},
"vehicle": {[]string{"POST", "OPTIONS"}, "/vehicle/{name:[a-zA-Z0-9_.:-]+}", vehicleSelectHandler(site, lp)},
"vehicle2": {[]string{"DELETE", "OPTIONS"}, "/vehicle", vehicleRemoveHandler(lp)},
"vehicleDetect": {[]string{"PATCH", "OPTIONS"}, "/vehicle", vehicleDetectHandler(lp)},
"remotedemand": {[]string{"POST", "OPTIONS"}, "/remotedemand/{demand:[a-z]+}/{source:[0-9a-zA-Z_-]+}", remoteDemandHandler(lp)},
"enableThreshold": {[]string{"POST", "OPTIONS"}, "/enable/threshold/{value:-?[0-9.]+}", floatHandler(pass(lp.SetEnableThreshold), lp.GetEnableThreshold)},
"disableThreshold": {[]string{"POST", "OPTIONS"}, "/disable/threshold/{value:-?[0-9.]+}", floatHandler(pass(lp.SetDisableThreshold), lp.GetDisableThreshold)},
// "priority": {[]string{"POST", "OPTIONS"}, "/priority/{value:[0-9.]+}", floatHandler(pass(lp.SetPriority), lp.GetPriority)},
}
for _, r := range routes {
api.Methods(r.Methods...).Path(r.Pattern).Handler(r.HandlerFunc)
}
}
}
// RegisterShutdownHandler connects the http handlers to the site
func (s *HTTPd) RegisterShutdownHandler(callback func()) {
router := s.Server.Handler.(*mux.Router)
// api
api := router.PathPrefix("/api").Subrouter()
api.Use(jsonHandler)
api.Use(handlers.CompressHandler)
api.Use(handlers.CORS(
handlers.AllowedHeaders([]string{"Content-Type"}),
))
// site api
routes := map[string]route{
"shutdown": {[]string{"POST", "OPTIONS"}, "/shutdown", func(w http.ResponseWriter, r *http.Request) {
callback()
w.WriteHeader(http.StatusNoContent)
}},
}
for _, r := range routes {
api.Methods(r.Methods...).Path(r.Pattern).Handler(r.HandlerFunc)
}
}