Files
elmprodvpn/selective-vpn-api/app/transport_handlers_health_refresh.go

115 lines
2.5 KiB
Go

package app
import (
"encoding/json"
"io"
"net/http"
"strings"
)
func handleTransportHealthRefresh(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodPost {
http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
return
}
var body TransportHealthRefreshRequest
if r.Body != nil {
defer r.Body.Close()
if err := json.NewDecoder(io.LimitReader(r.Body, 1<<20)).Decode(&body); err != nil && err != io.EOF {
http.Error(w, "bad json", http.StatusBadRequest)
return
}
}
force := bool(body.Force)
transportMu.Lock()
st := loadTransportClientsState()
transportHealthSWR.syncKnownClients(st.Items)
transportMu.Unlock()
items := make([]TransportHealthRefreshItem, 0, len(st.Items))
queued := 0
skipped := 0
seen := map[string]struct{}{}
appendItem := func(it TransportClient, reason string, wasQueued bool) {
id := strings.TrimSpace(it.ID)
if id == "" {
return
}
if _, ok := seen[id]; ok {
return
}
seen[id] = struct{}{}
items = append(items, TransportHealthRefreshItem{
ClientID: id,
Status: it.Status,
Queued: wasQueued,
Reason: strings.TrimSpace(reason),
})
if wasQueued {
queued++
} else {
skipped++
}
}
if len(body.ClientIDs) == 0 {
for _, it := range st.Items {
if !force && !transportHealthCandidate(it) {
appendItem(it, "not eligible for background probe", false)
continue
}
if transportQueueHealthProbe(it, force) {
appendItem(it, "queued", true)
} else {
appendItem(it, "throttled or already fresh", false)
}
}
} else {
for _, raw := range body.ClientIDs {
id := sanitizeID(raw)
if id == "" {
continue
}
idx := findTransportClientIndex(st.Items, id)
if idx < 0 {
items = append(items, TransportHealthRefreshItem{
ClientID: id,
Queued: false,
Reason: "not found",
})
skipped++
continue
}
it := st.Items[idx]
if !force && !transportHealthCandidate(it) {
appendItem(it, "not eligible for background probe", false)
continue
}
if transportQueueHealthProbe(it, force) {
appendItem(it, "queued", true)
} else {
appendItem(it, "throttled or already fresh", false)
}
}
}
resp := TransportHealthRefreshResponse{
OK: true,
Message: "health refresh queued",
Count: len(items),
Queued: queued,
Skipped: skipped,
Items: items,
}
if resp.Count == 0 {
resp.OK = false
resp.Code = "TRANSPORT_HEALTH_REFRESH_NO_TARGETS"
resp.Message = "no target clients"
}
writeJSON(w, http.StatusOK, resp)
}