forked from vmware-archive/atc
/
check_webhook.go
71 lines (61 loc) · 2.18 KB
/
check_webhook.go
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package resourceserver
import (
"fmt"
"net/http"
"code.cloudfoundry.org/lager"
"github.com/concourse/atc"
"github.com/concourse/atc/creds"
"github.com/concourse/atc/db"
"github.com/tedsuo/rata"
)
// CheckResourceWebHook defines a handler for process a check resource request via an access token.
func (s *Server) CheckResourceWebHook(dbPipeline db.Pipeline) http.Handler {
logger := s.logger.Session("check-resource-webhook")
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
resourceName := rata.Param(r, "resource_name")
webhookToken := r.URL.Query().Get("webhook_token")
if webhookToken == "" {
logger.Info("no-webhook-token", lager.Data{"error": "missing webhook_token"})
w.WriteHeader(http.StatusBadRequest)
return
}
pipelineResource, found, err := dbPipeline.Resource(resourceName)
if !found {
logger.Info("resource-not-found", lager.Data{"error": fmt.Sprintf("Resource not found %s", resourceName)})
w.WriteHeader(http.StatusNotFound)
return
}
if err != nil {
logger.Info("database-error", lager.Data{"error": err})
w.WriteHeader(http.StatusInternalServerError)
return
}
variables := s.variablesFactory.NewVariables(dbPipeline.TeamName(), dbPipeline.Name())
token, err := creds.NewString(variables, pipelineResource.WebhookToken()).Evaluate()
if token != webhookToken {
logger.Info("invalid-token", lager.Data{"error": fmt.Sprintf("invalid token for webhook %s", webhookToken)})
w.WriteHeader(http.StatusUnauthorized)
return
}
var fromVersion atc.Version
latestVersion, found, err := dbPipeline.GetLatestVersionedResource(resourceName)
if err != nil {
logger.Info("failed-to-get-latest-versioned-resource", lager.Data{"error": err.Error()})
w.WriteHeader(http.StatusInternalServerError)
return
}
if found {
fromVersion = atc.Version(latestVersion.Version)
}
scanner := s.scannerFactory.NewResourceScanner(dbPipeline)
err = scanner.ScanFromVersion(logger, resourceName, fromVersion)
switch err.(type) {
case db.ResourceNotFoundError:
w.WriteHeader(http.StatusNotFound)
case error:
w.WriteHeader(http.StatusInternalServerError)
default:
w.WriteHeader(http.StatusOK)
}
})
}