70 lines
2.9 KiB
Go
70 lines
2.9 KiB
Go
package main
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import (
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"context"
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"crypto/subtle"
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"encoding/json"
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"errors"
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"net/http"
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"strings"
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"git.cin.su/m/Assistant/adapters/postgres"
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"git.cin.su/m/Assistant/contracts/continuity"
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continuitydomain "git.cin.su/m/Assistant/modules/continuity/domain"
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)
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type continuityExecutorRepository interface {
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SatisfyDelivered(context.Context, continuity.SatisfyDeliveredCommand) (continuity.ActionReceipt, error)
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LoadActionReceipt(context.Context, continuity.CommittedActionIntentID) (continuity.ActionReceipt, error)
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}
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func registerInternalExecutorRoutes(mux *http.ServeMux, repository continuityExecutorRepository, token string) {
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mux.HandleFunc("POST /v1/internal/executor/satisfy-delivered", requireExecutorToken(token, func(w http.ResponseWriter, r *http.Request) {
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var command continuity.SatisfyDeliveredCommand
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decoder := json.NewDecoder(http.MaxBytesReader(w, r.Body, 32<<10))
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if err := decoder.Decode(&command); err != nil {
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http.Error(w, "invalid executor command", http.StatusBadRequest)
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return
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}
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receipt, err := repository.SatisfyDelivered(r.Context(), command)
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switch {
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case err == nil:
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w.Header().Set("Content-Type", "application/json")
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_ = json.NewEncoder(w).Encode(receipt)
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case errors.Is(err, continuitydomain.ErrInvalidSatisfaction):
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http.Error(w, "invalid executor command", http.StatusBadRequest)
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case errors.Is(err, postgres.ErrProspectiveNotFound):
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http.Error(w, "prospective item not found", http.StatusNotFound)
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case errors.Is(err, postgres.ErrProspectiveOwnerConflict), errors.Is(err, postgres.ErrProspectiveStateConflict),
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errors.Is(err, postgres.ErrProspectiveRevisionConflict), errors.Is(err, postgres.ErrActionIntentConflict):
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http.Error(w, "prospective command conflict", http.StatusConflict)
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default:
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http.Error(w, "continuity execution unavailable", http.StatusInternalServerError)
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}
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}))
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mux.HandleFunc("GET /v1/internal/executor/receipts/{intentID}", requireExecutorToken(token, func(w http.ResponseWriter, r *http.Request) {
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receipt, err := repository.LoadActionReceipt(r.Context(), continuity.CommittedActionIntentID(r.PathValue("intentID")))
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if errors.Is(err, postgres.ErrActionReceiptNotFound) {
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http.Error(w, "receipt not found", http.StatusNotFound)
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return
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}
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if err != nil {
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http.Error(w, "continuity receipt unavailable", http.StatusInternalServerError)
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return
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}
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w.Header().Set("Content-Type", "application/json")
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_ = json.NewEncoder(w).Encode(receipt)
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}))
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}
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func requireExecutorToken(expected string, next http.HandlerFunc) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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provided := strings.TrimPrefix(r.Header.Get("Authorization"), "Bearer ")
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if expected == "" || len(provided) != len(expected) || subtle.ConstantTimeCompare([]byte(provided), []byte(expected)) != 1 {
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http.Error(w, "executor denied", http.StatusUnauthorized)
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return
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}
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next(w, r)
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}
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}
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