mirror of
https://github.com/filebrowser/filebrowser.git
synced 2024-06-07 23:00:43 +00:00
198 lines
4.5 KiB
Go
198 lines
4.5 KiB
Go
package filemanager
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import (
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"bytes"
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"encoding/json"
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"html/template"
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"net/http"
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"strconv"
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"strings"
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)
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// functions contains the non-standard functions that are available
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// to use on the HTML templates.
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var functions = template.FuncMap{
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"CSS": func(s string) template.CSS {
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return template.CSS(s)
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},
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"Marshal": func(v interface{}) template.JS {
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a, _ := json.Marshal(v)
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return template.JS(a)
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},
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}
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// page contains the information needed to fill a page template.
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type page struct {
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User *User `json:"-"`
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BaseURL string `json:"-"`
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WebDavURL string `json:"-"`
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Name string `json:"name"`
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Path string `json:"path"`
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Kind string `json:"kind"` // listing, editor or preview
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Data interface{} `json:"data"`
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}
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// breadcrumbItem contains the Name and the URL of a breadcrumb piece.
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type breadcrumbItem struct {
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Name string
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URL string
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}
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// BreadcrumbMap returns p.Path where every element is a map
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// of URLs and path segment names.
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func (p page) BreadcrumbMap() []breadcrumbItem {
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// TODO: when it is preview alongside with listing!!!!!!!!!!
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result := []breadcrumbItem{}
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if len(p.Path) == 0 {
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return result
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}
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// skip trailing slash
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lpath := p.Path
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if lpath[len(lpath)-1] == '/' {
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lpath = lpath[:len(lpath)-1]
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}
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parts := strings.Split(lpath, "/")
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for i, part := range parts {
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if i == len(parts)-1 {
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continue
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}
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if i == 0 && part == "" {
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result = append([]breadcrumbItem{{
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Name: "/",
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URL: "/",
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}}, result...)
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continue
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}
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result = append([]breadcrumbItem{{
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Name: part,
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URL: strings.Join(parts[:i+1], "/") + "/",
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}}, result...)
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}
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return result
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}
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// PreviousLink returns the URL of the previous folder.
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func (p page) PreviousLink() string {
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path := strings.TrimSuffix(p.Path, "/")
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path = strings.TrimPrefix(path, "/")
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path = p.BaseURL + "/" + path
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path = path[0 : len(path)-len(p.Name)]
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if len(path) < len(p.BaseURL+"/") {
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return ""
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}
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return path
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}
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func (p page) Render(c *requestContext, w http.ResponseWriter, r *http.Request) (int, error) {
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if strings.Contains(r.Header.Get("Accept"), "application/json") {
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marsh, err := json.MarshalIndent(p, "", " ")
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if err != nil {
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return http.StatusInternalServerError, err
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}
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w.Header().Set("Content-Type", "application/json; charset=utf-8")
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if _, err := w.Write(marsh); err != nil {
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return http.StatusInternalServerError, err
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}
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return 0, nil
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}
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var tpl *template.Template
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// Get the template from the assets
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file, err := c.fm.templates.String("index.html")
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// Check if there is some error. If so, the template doesn't exist
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if err != nil {
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return http.StatusInternalServerError, err
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}
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tpl, err = template.New("index").Funcs(functions).Parse(file)
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if err != nil {
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return http.StatusInternalServerError, err
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}
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buf := &bytes.Buffer{}
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err = tpl.Execute(buf, p)
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if err != nil {
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return http.StatusInternalServerError, err
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}
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w.Header().Set("Content-Type", "text/html; charset=utf-8")
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_, err = buf.WriteTo(w)
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if err != nil {
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return http.StatusInternalServerError, err
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}
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return 0, nil
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}
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// htmlError prints the error page
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func htmlError(w http.ResponseWriter, code int, err error) (int, error) {
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tpl := errTemplate
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tpl = strings.Replace(tpl, "TITLE", strconv.Itoa(code)+" "+http.StatusText(code), -1)
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tpl = strings.Replace(tpl, "CODE", err.Error(), -1)
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_, err = w.Write([]byte(tpl))
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if err != nil {
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return http.StatusInternalServerError, err
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}
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return http.StatusOK, nil
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}
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const errTemplate = `<!DOCTYPE html>
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<html>
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<head>
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<title>TITLE</title>
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta charset="utf-8">
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<style>
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html {
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background-color: #2196f3;
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color: #fff;
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font-family: sans-serif;
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}
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code {
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background-color: rgba(0,0,0,0.1);
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border-radius: 5px;
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padding: 1em;
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display: block;
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box-sizing: border-box;
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}
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.center {
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max-width: 40em;
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margin: 2em auto 0;
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}
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a {
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text-decoration: none;
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color: #eee;
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font-weight: bold;
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}
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p {
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line-height: 1.3;
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}
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</style>
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</head>
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<body>
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<div class="center">
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<h1>TITLE</h1>
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<p>Try reloading the page or hitting the back button. If this error persists, it seems that you may have found a bug! Please create an issue at <a href="https://github.com/hacdias/caddy-filemanager/issues">hacdias/caddy-filemanager</a> repository on GitHub with the code below.</p>
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<code>CODE</code>
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</div>
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</html>`
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