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traefik/pkg/api/handler_tcp.go
2021-06-11 15:30:05 +02:00

241 lines
6.8 KiB
Go

package api
import (
"encoding/json"
"fmt"
"net/http"
"sort"
"strconv"
"strings"
"github.com/gorilla/mux"
"github.com/traefik/traefik/v2/pkg/config/runtime"
"github.com/traefik/traefik/v2/pkg/log"
)
type tcpRouterRepresentation struct {
*runtime.TCPRouterInfo
Name string `json:"name,omitempty"`
Provider string `json:"provider,omitempty"`
}
func newTCPRouterRepresentation(name string, rt *runtime.TCPRouterInfo) tcpRouterRepresentation {
return tcpRouterRepresentation{
TCPRouterInfo: rt,
Name: name,
Provider: getProviderName(name),
}
}
type tcpServiceRepresentation struct {
*runtime.TCPServiceInfo
Name string `json:"name,omitempty"`
Provider string `json:"provider,omitempty"`
Type string `json:"type,omitempty"`
}
func newTCPServiceRepresentation(name string, si *runtime.TCPServiceInfo) tcpServiceRepresentation {
return tcpServiceRepresentation{
TCPServiceInfo: si,
Name: name,
Provider: getProviderName(name),
Type: strings.ToLower(extractType(si.TCPService)),
}
}
type tcpMiddlewareRepresentation struct {
*runtime.TCPMiddlewareInfo
Name string `json:"name,omitempty"`
Provider string `json:"provider,omitempty"`
Type string `json:"type,omitempty"`
}
func newTCPMiddlewareRepresentation(name string, mi *runtime.TCPMiddlewareInfo) tcpMiddlewareRepresentation {
return tcpMiddlewareRepresentation{
TCPMiddlewareInfo: mi,
Name: name,
Provider: getProviderName(name),
Type: strings.ToLower(extractType(mi.TCPMiddleware)),
}
}
func (h Handler) getTCPRouters(rw http.ResponseWriter, request *http.Request) {
results := make([]tcpRouterRepresentation, 0, len(h.runtimeConfiguration.TCPRouters))
criterion := newSearchCriterion(request.URL.Query())
for name, rt := range h.runtimeConfiguration.TCPRouters {
if keepTCPRouter(name, rt, criterion) {
results = append(results, newTCPRouterRepresentation(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.FromContext(request.Context()).Error(err)
writeError(rw, err.Error(), http.StatusInternalServerError)
}
}
func (h Handler) getTCPRouter(rw http.ResponseWriter, request *http.Request) {
routerID := mux.Vars(request)["routerID"]
rw.Header().Set("Content-Type", "application/json")
router, ok := h.runtimeConfiguration.TCPRouters[routerID]
if !ok {
writeError(rw, fmt.Sprintf("router not found: %s", routerID), http.StatusNotFound)
return
}
result := newTCPRouterRepresentation(routerID, router)
err := json.NewEncoder(rw).Encode(result)
if err != nil {
log.FromContext(request.Context()).Error(err)
writeError(rw, err.Error(), http.StatusInternalServerError)
}
}
func (h Handler) getTCPServices(rw http.ResponseWriter, request *http.Request) {
results := make([]tcpServiceRepresentation, 0, len(h.runtimeConfiguration.TCPServices))
criterion := newSearchCriterion(request.URL.Query())
for name, si := range h.runtimeConfiguration.TCPServices {
if keepTCPService(name, si, criterion) {
results = append(results, newTCPServiceRepresentation(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.FromContext(request.Context()).Error(err)
writeError(rw, err.Error(), http.StatusInternalServerError)
}
}
func (h Handler) getTCPService(rw http.ResponseWriter, request *http.Request) {
serviceID := mux.Vars(request)["serviceID"]
rw.Header().Set("Content-Type", "application/json")
service, ok := h.runtimeConfiguration.TCPServices[serviceID]
if !ok {
writeError(rw, fmt.Sprintf("service not found: %s", serviceID), http.StatusNotFound)
return
}
result := newTCPServiceRepresentation(serviceID, service)
err := json.NewEncoder(rw).Encode(result)
if err != nil {
log.FromContext(request.Context()).Error(err)
writeError(rw, err.Error(), http.StatusInternalServerError)
}
}
func (h Handler) getTCPMiddlewares(rw http.ResponseWriter, request *http.Request) {
results := make([]tcpMiddlewareRepresentation, 0, len(h.runtimeConfiguration.Middlewares))
criterion := newSearchCriterion(request.URL.Query())
for name, mi := range h.runtimeConfiguration.TCPMiddlewares {
if keepTCPMiddleware(name, mi, criterion) {
results = append(results, newTCPMiddlewareRepresentation(name, mi))
}
}
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.FromContext(request.Context()).Error(err)
writeError(rw, err.Error(), http.StatusInternalServerError)
}
}
func (h Handler) getTCPMiddleware(rw http.ResponseWriter, request *http.Request) {
middlewareID := mux.Vars(request)["middlewareID"]
rw.Header().Set("Content-Type", "application/json")
middleware, ok := h.runtimeConfiguration.TCPMiddlewares[middlewareID]
if !ok {
writeError(rw, fmt.Sprintf("middleware not found: %s", middlewareID), http.StatusNotFound)
return
}
result := newTCPMiddlewareRepresentation(middlewareID, middleware)
err := json.NewEncoder(rw).Encode(result)
if err != nil {
log.FromContext(request.Context()).Error(err)
writeError(rw, err.Error(), http.StatusInternalServerError)
}
}
func keepTCPRouter(name string, item *runtime.TCPRouterInfo, criterion *searchCriterion) bool {
if criterion == nil {
return true
}
return criterion.withStatus(item.Status) && criterion.searchIn(item.Rule, name)
}
func keepTCPService(name string, item *runtime.TCPServiceInfo, criterion *searchCriterion) bool {
if criterion == nil {
return true
}
return criterion.withStatus(item.Status) && criterion.searchIn(name)
}
func keepTCPMiddleware(name string, item *runtime.TCPMiddlewareInfo, criterion *searchCriterion) bool {
if criterion == nil {
return true
}
return criterion.withStatus(item.Status) && criterion.searchIn(name)
}