Jan Dittberner
c9d3f2a20a
All checks were successful
cacert-boardvoting/pipeline/head This commit looks good
126 lines
3 KiB
Go
126 lines
3 KiB
Go
/*
|
|
Copyright 2017-2022 CAcert Inc.
|
|
SPDX-License-Identifier: Apache-2.0
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package handlers
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"html/template"
|
|
"io/fs"
|
|
"net/http"
|
|
"path/filepath"
|
|
"strings"
|
|
|
|
"github.com/Masterminds/sprig/v3"
|
|
|
|
"git.cacert.org/cacert-boardvoting/internal/forms"
|
|
"git.cacert.org/cacert-boardvoting/internal/models"
|
|
"git.cacert.org/cacert-boardvoting/ui"
|
|
)
|
|
|
|
func checkRole(v *models.User, roles ...models.RoleName) (bool, error) {
|
|
if v == nil {
|
|
return false, nil
|
|
}
|
|
|
|
hasRole, err := v.HasRole(roles...)
|
|
if err != nil {
|
|
return false, fmt.Errorf("could not determine user roles: %w", err)
|
|
}
|
|
|
|
return hasRole, nil
|
|
}
|
|
|
|
type TemplateData struct {
|
|
PrevPage string
|
|
NextPage string
|
|
Motion *models.Motion
|
|
Motions []*models.Motion
|
|
User *models.User
|
|
Users []*models.User
|
|
Request *http.Request
|
|
Flashes []FlashMessage
|
|
Form forms.Form
|
|
ActiveNav topLevelNavItem
|
|
ActiveSubNav subLevelNavItem
|
|
CSRFToken string
|
|
}
|
|
|
|
type TemplateCache struct {
|
|
cache map[string]*template.Template
|
|
}
|
|
|
|
func NewTemplateCache() (*TemplateCache, error) {
|
|
cache := map[string]*template.Template{}
|
|
|
|
pages, err := fs.Glob(ui.Files, "html/pages/*.html")
|
|
if err != nil {
|
|
return nil, fmt.Errorf("could not find page templates: %w", err)
|
|
}
|
|
|
|
funcMaps := sprig.FuncMap()
|
|
funcMaps["nl2br"] = func(text string) template.HTML {
|
|
// #nosec G203 input is sanitized
|
|
return template.HTML(strings.ReplaceAll(template.HTMLEscapeString(text), "\n", "<br>"))
|
|
}
|
|
funcMaps["canManageUsers"] = func(v *models.User) (bool, error) {
|
|
return checkRole(v, models.RoleSecretary, models.RoleAdmin)
|
|
}
|
|
funcMaps["canVote"] = func(v *models.User) (bool, error) {
|
|
return checkRole(v, models.RoleVoter)
|
|
}
|
|
funcMaps["canStartVote"] = func(v *models.User) (bool, error) {
|
|
return checkRole(v, models.RoleVoter)
|
|
}
|
|
|
|
for _, page := range pages {
|
|
name := filepath.Base(page)
|
|
|
|
ts, err := template.New("").Funcs(funcMaps).ParseFS(
|
|
ui.Files,
|
|
"html/base.html",
|
|
"html/partials/*.html",
|
|
page,
|
|
)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("could not parse base template: %w", err)
|
|
}
|
|
|
|
cache[name] = ts
|
|
}
|
|
|
|
return &TemplateCache{cache: cache}, nil
|
|
}
|
|
|
|
func (c *TemplateCache) render(w http.ResponseWriter, status int, page string, data *TemplateData) {
|
|
ts, ok := c.cache[page]
|
|
if !ok {
|
|
panic(fmt.Sprintf("the template %s does not exist", page))
|
|
}
|
|
|
|
buf := new(bytes.Buffer)
|
|
|
|
err := ts.ExecuteTemplate(buf, "base", data)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
|
|
w.WriteHeader(status)
|
|
|
|
_, _ = buf.WriteTo(w)
|
|
}
|