traefik/pkg/api/handler_udp.go
2022-11-21 18:36:05 +01:00

164 lines
4.5 KiB
Go

package api
import (
"encoding/json"
"fmt"
"net/http"
"sort"
"strconv"
"strings"
"github.com/gorilla/mux"
"github.com/rs/zerolog/log"
"github.com/traefik/traefik/v2/pkg/config/runtime"
)
type udpRouterRepresentation struct {
*runtime.UDPRouterInfo
Name string `json:"name,omitempty"`
Provider string `json:"provider,omitempty"`
}
func newUDPRouterRepresentation(name string, rt *runtime.UDPRouterInfo) udpRouterRepresentation {
return udpRouterRepresentation{
UDPRouterInfo: rt,
Name: name,
Provider: getProviderName(name),
}
}
type udpServiceRepresentation struct {
*runtime.UDPServiceInfo
Name string `json:"name,omitempty"`
Provider string `json:"provider,omitempty"`
Type string `json:"type,omitempty"`
}
func newUDPServiceRepresentation(name string, si *runtime.UDPServiceInfo) udpServiceRepresentation {
return udpServiceRepresentation{
UDPServiceInfo: si,
Name: name,
Provider: getProviderName(name),
Type: strings.ToLower(extractType(si.UDPService)),
}
}
func (h Handler) getUDPRouters(rw http.ResponseWriter, request *http.Request) {
results := make([]udpRouterRepresentation, 0, len(h.runtimeConfiguration.UDPRouters))
criterion := newSearchCriterion(request.URL.Query())
for name, rt := range h.runtimeConfiguration.UDPRouters {
if keepUDPRouter(name, rt, criterion) {
results = append(results, newUDPRouterRepresentation(name, rt))
}
}
sort.Slice(results, func(i, j int) bool {
return results[i].Name < results[j].Name
})
rw.Header().Set("Content-Type", "application/json")
pageInfo, err := pagination(request, len(results))
if err != nil {
writeError(rw, err.Error(), http.StatusBadRequest)
return
}
rw.Header().Set(nextPageHeader, strconv.Itoa(pageInfo.nextPage))
err = json.NewEncoder(rw).Encode(results[pageInfo.startIndex:pageInfo.endIndex])
if err != nil {
log.Ctx(request.Context()).Error().Err(err).Send()
writeError(rw, err.Error(), http.StatusInternalServerError)
}
}
func (h Handler) getUDPRouter(rw http.ResponseWriter, request *http.Request) {
routerID := mux.Vars(request)["routerID"]
rw.Header().Set("Content-Type", "application/json")
router, ok := h.runtimeConfiguration.UDPRouters[routerID]
if !ok {
writeError(rw, fmt.Sprintf("router not found: %s", routerID), http.StatusNotFound)
return
}
result := newUDPRouterRepresentation(routerID, router)
err := json.NewEncoder(rw).Encode(result)
if err != nil {
log.Ctx(request.Context()).Error().Err(err).Send()
writeError(rw, err.Error(), http.StatusInternalServerError)
}
}
func (h Handler) getUDPServices(rw http.ResponseWriter, request *http.Request) {
results := make([]udpServiceRepresentation, 0, len(h.runtimeConfiguration.UDPServices))
criterion := newSearchCriterion(request.URL.Query())
for name, si := range h.runtimeConfiguration.UDPServices {
if keepUDPService(name, si, criterion) {
results = append(results, newUDPServiceRepresentation(name, si))
}
}
sort.Slice(results, func(i, j int) bool {
return results[i].Name < results[j].Name
})
rw.Header().Set("Content-Type", "application/json")
pageInfo, err := pagination(request, len(results))
if err != nil {
writeError(rw, err.Error(), http.StatusBadRequest)
return
}
rw.Header().Set(nextPageHeader, strconv.Itoa(pageInfo.nextPage))
err = json.NewEncoder(rw).Encode(results[pageInfo.startIndex:pageInfo.endIndex])
if err != nil {
log.Ctx(request.Context()).Error().Err(err).Send()
writeError(rw, err.Error(), http.StatusInternalServerError)
}
}
func (h Handler) getUDPService(rw http.ResponseWriter, request *http.Request) {
serviceID := mux.Vars(request)["serviceID"]
rw.Header().Set("Content-Type", "application/json")
service, ok := h.runtimeConfiguration.UDPServices[serviceID]
if !ok {
writeError(rw, fmt.Sprintf("service not found: %s", serviceID), http.StatusNotFound)
return
}
result := newUDPServiceRepresentation(serviceID, service)
err := json.NewEncoder(rw).Encode(result)
if err != nil {
log.Ctx(request.Context()).Error().Err(err).Send()
writeError(rw, err.Error(), http.StatusInternalServerError)
}
}
func keepUDPRouter(name string, item *runtime.UDPRouterInfo, criterion *searchCriterion) bool {
if criterion == nil {
return true
}
return criterion.withStatus(item.Status) && criterion.searchIn(name)
}
func keepUDPService(name string, item *runtime.UDPServiceInfo, criterion *searchCriterion) bool {
if criterion == nil {
return true
}
return criterion.withStatus(item.Status) && criterion.searchIn(name)
}