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Code Issues Releases Activity

feat(templates): re-introduce external template management (#2119)

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* feat(templates): re-introduce external template management

* refactor(api): review error handling
This commit is contained in:
Anthony Lapenna 2018-08-07 17:43:36 +02:00 • committed by GitHub
parent 09cb8e7350
commit ee9c8d7d1a
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GPG key ID: 4AEE18F83AFDEB23
12 changed files with 120 additions and 32 deletions
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30
api/http/handler/templates/handler.go
View file

@ -9,10 +9,15 @@ import (
"github.com/portainer/portainer/http/security"
)
const (
errTemplateManagementDisabled = portainer.Error("Template management is disabled")
)
// Handler represents an HTTP API handler for managing templates.
type Handler struct {
*mux.Router
TemplateService portainer.TemplateService
SettingsService portainer.SettingsService
}
// NewHandler returns a new instance of Handler.
@ -20,15 +25,32 @@ func NewHandler(bouncer *security.RequestBouncer) *Handler {
h := &Handler{
Router: mux.NewRouter(),
}
h.Handle("/templates",
bouncer.RestrictedAccess(httperror.LoggerHandler(h.templateList))).Methods(http.MethodGet)
h.Handle("/templates",
bouncer.AdministratorAccess(httperror.LoggerHandler(h.templateCreate))).Methods(http.MethodPost)
bouncer.AdministratorAccess(h.templateManagementCheck(httperror.LoggerHandler(h.templateCreate)))).Methods(http.MethodPost)
h.Handle("/templates/{id}",
bouncer.AdministratorAccess(httperror.LoggerHandler(h.templateInspect))).Methods(http.MethodGet)
bouncer.AdministratorAccess(h.templateManagementCheck(httperror.LoggerHandler(h.templateInspect)))).Methods(http.MethodGet)
h.Handle("/templates/{id}",
bouncer.AdministratorAccess(httperror.LoggerHandler(h.templateUpdate))).Methods(http.MethodPut)
bouncer.AdministratorAccess(h.templateManagementCheck(httperror.LoggerHandler(h.templateUpdate)))).Methods(http.MethodPut)
h.Handle("/templates/{id}",
bouncer.AdministratorAccess(httperror.LoggerHandler(h.templateDelete))).Methods(http.MethodDelete)
bouncer.AdministratorAccess(h.templateManagementCheck(httperror.LoggerHandler(h.templateDelete)))).Methods(http.MethodDelete)
return h
}
func (handler *Handler) templateManagementCheck(next http.Handler) http.Handler {
return httperror.LoggerHandler(func(rw http.ResponseWriter, r *http.Request) *httperror.HandlerError {
settings, err := handler.SettingsService.Settings()
if err != nil {
return &httperror.HandlerError{http.StatusInternalServerError, "Unable to retrieve settings from the database", err}
}
if settings.TemplatesURL != "" {
return &httperror.HandlerError{http.StatusServiceUnavailable, "Portainer is configured to use external templates, template management is disabled", errTemplateManagementDisabled}
}
next.ServeHTTP(rw, r)
return nil
})
}

27
api/http/handler/templates/template_list.go
View file

@ -1,8 +1,11 @@
package templates
import (
"encoding/json"
"net/http"
"github.com/portainer/portainer"
"github.com/portainer/portainer/http/client"
httperror "github.com/portainer/portainer/http/error"
"github.com/portainer/portainer/http/response"
"github.com/portainer/portainer/http/security"
@ -10,9 +13,28 @@ import (
// GET request on /api/templates
func (handler *Handler) templateList(w http.ResponseWriter, r *http.Request) *httperror.HandlerError {
templates, err := handler.TemplateService.Templates()
settings, err := handler.SettingsService.Settings()
if err != nil {
return &httperror.HandlerError{http.StatusInternalServerError, "Unable to retrieve templates from the database", err}
return &httperror.HandlerError{http.StatusInternalServerError, "Unable to retrieve settings from the database", err}
}
var templates []portainer.Template
if settings.TemplatesURL == "" {
templates, err = handler.TemplateService.Templates()
if err != nil {
return &httperror.HandlerError{http.StatusInternalServerError, "Unable to retrieve templates from the database", err}
}
} else {
var templateData []byte
templateData, err = client.Get(settings.TemplatesURL)
if err != nil {
return &httperror.HandlerError{http.StatusInternalServerError, "Unable to retrieve external templates", err}
}
err = json.Unmarshal(templateData, &templates)
if err != nil {
return &httperror.HandlerError{http.StatusInternalServerError, "Unable to parse external templates", err}
}
}
securityContext, err := security.RetrieveRestrictedRequestContext(r)
@ -21,6 +43,5 @@ func (handler *Handler) templateList(w http.ResponseWriter, r *http.Request) *ht
}
filteredTemplates := security.FilterTemplates(templates, securityContext)
return response.JSON(w, filteredTemplates)
}