traefik/pkg/api/handler_tcp.go

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package api
import (
"encoding/json"
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"fmt"
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"net/http"
"sort"
"strconv"
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"strings"
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"github.com/containous/traefik/v2/pkg/config/runtime"
"github.com/containous/traefik/v2/pkg/log"
"github.com/gorilla/mux"
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)
type tcpRouterRepresentation struct {
*runtime.TCPRouterInfo
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Name string `json:"name,omitempty"`
Provider string `json:"provider,omitempty"`
}
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func newTCPRouterRepresentation(name string, rt *runtime.TCPRouterInfo) tcpRouterRepresentation {
return tcpRouterRepresentation{
TCPRouterInfo: rt,
Name: name,
Provider: getProviderName(name),
}
}
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type tcpServiceRepresentation struct {
*runtime.TCPServiceInfo
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Name string `json:"name,omitempty"`
Provider string `json:"provider,omitempty"`
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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)),
}
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}
func (h Handler) getTCPRouters(rw http.ResponseWriter, request *http.Request) {
results := make([]tcpRouterRepresentation, 0, len(h.runtimeConfiguration.TCPRouters))
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criterion := newSearchCriterion(request.URL.Query())
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for name, rt := range h.runtimeConfiguration.TCPRouters {
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if keepTCPRouter(name, rt, criterion) {
results = append(results, newTCPRouterRepresentation(name, rt))
}
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}
sort.Slice(results, func(i, j int) bool {
return results[i].Name < results[j].Name
})
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rw.Header().Set("Content-Type", "application/json")
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pageInfo, err := pagination(request, len(results))
if err != nil {
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writeError(rw, err.Error(), http.StatusBadRequest)
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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)
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writeError(rw, err.Error(), http.StatusInternalServerError)
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}
}
func (h Handler) getTCPRouter(rw http.ResponseWriter, request *http.Request) {
routerID := mux.Vars(request)["routerID"]
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rw.Header().Set("Content-Type", "application/json")
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router, ok := h.runtimeConfiguration.TCPRouters[routerID]
if !ok {
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writeError(rw, fmt.Sprintf("router not found: %s", routerID), http.StatusNotFound)
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return
}
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result := newTCPRouterRepresentation(routerID, router)
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err := json.NewEncoder(rw).Encode(result)
if err != nil {
log.FromContext(request.Context()).Error(err)
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writeError(rw, err.Error(), http.StatusInternalServerError)
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}
}
func (h Handler) getTCPServices(rw http.ResponseWriter, request *http.Request) {
results := make([]tcpServiceRepresentation, 0, len(h.runtimeConfiguration.TCPServices))
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criterion := newSearchCriterion(request.URL.Query())
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for name, si := range h.runtimeConfiguration.TCPServices {
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if keepTCPService(name, si, criterion) {
results = append(results, newTCPServiceRepresentation(name, si))
}
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}
sort.Slice(results, func(i, j int) bool {
return results[i].Name < results[j].Name
})
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rw.Header().Set("Content-Type", "application/json")
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pageInfo, err := pagination(request, len(results))
if err != nil {
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writeError(rw, err.Error(), http.StatusBadRequest)
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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)
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writeError(rw, err.Error(), http.StatusInternalServerError)
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}
}
func (h Handler) getTCPService(rw http.ResponseWriter, request *http.Request) {
serviceID := mux.Vars(request)["serviceID"]
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rw.Header().Set("Content-Type", "application/json")
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service, ok := h.runtimeConfiguration.TCPServices[serviceID]
if !ok {
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writeError(rw, fmt.Sprintf("service not found: %s", serviceID), http.StatusNotFound)
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return
}
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result := newTCPServiceRepresentation(serviceID, service)
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err := json.NewEncoder(rw).Encode(result)
if err != nil {
log.FromContext(request.Context()).Error(err)
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writeError(rw, err.Error(), http.StatusInternalServerError)
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}
}
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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)
}