/
handlers.go
150 lines (138 loc) · 4.76 KB
/
handlers.go
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// Copyright 2016 The Vanadium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"fmt"
"net/http"
"sort"
"v.io/x/ref/services/allocator"
)
type byCreationTime []allocator.Instance
func (c byCreationTime) Len() int { return len(c) }
func (c byCreationTime) Swap(i, j int) { c[i], c[j] = c[j], c[i] }
func (c byCreationTime) Less(i, j int) bool { return c[i].CreationTime.After(c[j].CreationTime) }
func handleHome(ss *serverState, rs *requestState) error {
ctx := ss.ctx
instances, err := serverInstances(ctx, rs.email)
if err != nil {
return fmt.Errorf("list error: %v", err)
}
sort.Sort(byCreationTime(instances))
type instanceArg struct {
Instance allocator.Instance
DestroyURL,
ResetURL,
DebugURL,
DashboardURL,
SuspendURL,
ResumeURL string
}
tmplArgs := struct {
AssetsPrefix,
ServerName,
Email,
CreateURL,
CSRFParam,
CSRFToken,
Message string
Instances []instanceArg
}{
AssetsPrefix: ss.args.staticAssetsPrefix,
ServerName: ss.args.serverName,
Email: rs.email,
CreateURL: routeCreate,
CSRFParam: paramCSRF,
CSRFToken: rs.csrfToken,
Message: rs.r.FormValue(paramMessage),
}
for _, instance := range instances {
tmplArgs.Instances = append(tmplArgs.Instances, instanceArg{
Instance: instance,
DestroyURL: makeURL(ctx, routeDestroy, params{paramInstance: instance.Handle}),
ResetURL: makeURL(ctx, routeReset, params{paramInstance: instance.Handle}),
SuspendURL: makeURL(ctx, routeSuspend, params{paramInstance: instance.Handle}),
ResumeURL: makeURL(ctx, routeResume, params{paramInstance: instance.Handle}),
DashboardURL: makeURL(ctx, routeDashboard, params{paramInstance: instance.Handle}),
DebugURL: makeURL(ctx, routeDebug+"/", params{paramMountName: instance.MountName}),
})
}
if err := ss.args.assets.executeTemplate(rs.w, homeTmpl, tmplArgs); err != nil {
return fmt.Errorf("failed to render home template: %v", err)
}
return nil
}
func handleCreate(ss *serverState, rs *requestState) error {
ctx := ss.ctx
instance, err := create(ctx, rs.email, ss.args.baseBlessings, ss.args.baseBlessingNames)
if err != nil {
return fmt.Errorf("create failed: %v", err)
}
redirectTo := makeURL(ctx, routeHome, params{paramMessage: "created " + instance})
http.Redirect(rs.w, rs.r, redirectTo, http.StatusFound)
return nil
}
func handleDestroy(ss *serverState, rs *requestState) error {
ctx := ss.ctx
instance := rs.r.FormValue(paramInstance)
if instance == "" {
return fmt.Errorf("parameter %q required for instance name", paramInstance)
}
if err := destroy(ctx, rs.email, instance); err != nil {
return fmt.Errorf("destroy failed: %v", err)
}
redirectTo := makeURL(ctx, routeHome, params{paramMessage: "destroyed " + instance})
http.Redirect(rs.w, rs.r, redirectTo, http.StatusFound)
return nil
}
func handleSuspend(ss *serverState, rs *requestState) error {
ctx := ss.ctx
instance := rs.r.FormValue(paramInstance)
if instance == "" {
return fmt.Errorf("parameter %q required for instance name", paramInstance)
}
if err := suspend(ctx, rs.email, instance); err != nil {
return fmt.Errorf("suspend failed: %v", err)
}
redirectTo := makeURL(ctx, routeHome, params{paramMessage: "suspended " + instance})
http.Redirect(rs.w, rs.r, redirectTo, http.StatusFound)
return nil
}
func handleResume(ss *serverState, rs *requestState) error {
ctx := ss.ctx
instance := rs.r.FormValue(paramInstance)
if instance == "" {
return fmt.Errorf("parameter %q required for instance name", paramInstance)
}
if err := resume(ctx, rs.email, instance); err != nil {
return fmt.Errorf("resume failed: %v", err)
}
redirectTo := makeURL(ctx, routeHome, params{paramMessage: "resumed " + instance})
http.Redirect(rs.w, rs.r, redirectTo, http.StatusFound)
return nil
}
func handleReset(ss *serverState, rs *requestState) error {
ctx := ss.ctx
instance := rs.r.FormValue(paramInstance)
if instance == "" {
return fmt.Errorf("parameter %q required for instance name", paramInstance)
}
if err := resetDisk(ctx, rs.email, instance); err != nil {
return fmt.Errorf("reset failed: %v", err)
}
redirectTo := makeURL(ctx, routeHome, params{paramMessage: "resetted " + instance})
http.Redirect(rs.w, rs.r, redirectTo, http.StatusFound)
return nil
}
func handleDebug(ss *serverState, rs *requestState, debugBrowserServeMux *http.ServeMux) error {
ctx := ss.ctx
mountName := rs.r.FormValue(paramMountName)
if mountName == "" {
return fmt.Errorf("parameter %q required for instance mount name", paramMountName)
}
if err := checkOwnerOfMountName(ctx, rs.email, mountName); err != nil {
return err
}
http.StripPrefix(routeDebug, debugBrowserServeMux).ServeHTTP(rs.w, rs.r)
return nil
}