140 lines
3.1 KiB
Go
140 lines
3.1 KiB
Go
package filemanager
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import (
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"net/http"
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)
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func serveDefault(c *requestContext, w http.ResponseWriter, r *http.Request) (int, error) {
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var err error
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// Starts building the page.
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c.pg = &page{
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User: c.us,
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BaseURL: c.fm.RootURL(),
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WebDavURL: c.fm.WebDavURL(),
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Data: c.fi,
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}
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// If it is a dir, go and serve the listing.
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if c.fi.IsDir {
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return serveListing(c, w, r)
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}
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// Tries to get the file type.
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if err = c.fi.RetrieveFileType(); err != nil {
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return errorToHTTP(err, true), err
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}
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// If it can't be edited or the user isn't allowed to,
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// serve it as a listing, with a preview of the file.
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if !c.fi.CanBeEdited() || !c.us.AllowEdit {
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c.pg.Kind = "preview"
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} else {
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// Otherwise, we just bring the editor in!
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c.pg.Kind = "editor"
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err = c.fi.getEditor(r)
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if err != nil {
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return http.StatusInternalServerError, err
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}
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}
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return c.pg.Render(c, w, r)
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}
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// serveListing presents the user with a listage of a directory folder.
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func serveListing(c *requestContext, w http.ResponseWriter, r *http.Request) (int, error) {
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var err error
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c.pg.Kind = "listing"
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err = c.fi.getListing(c, r)
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if err != nil {
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return errorToHTTP(err, true), err
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}
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listing := c.fi.listing
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cookieScope := c.fm.RootURL()
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if cookieScope == "" {
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cookieScope = "/"
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}
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// Copy the query values into the Listing struct
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listing.Sort, listing.Order, err = handleSortOrder(w, r, cookieScope)
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if err != nil {
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return http.StatusBadRequest, err
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}
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listing.ApplySort()
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listing.Display = displayMode(w, r, cookieScope)
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return c.pg.Render(c, w, r)
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}
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// displayMode obtaisn the display mode from URL, or from the
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// cookie.
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func displayMode(w http.ResponseWriter, r *http.Request, scope string) string {
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displayMode := r.URL.Query().Get("display")
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if displayMode == "" {
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if displayCookie, err := r.Cookie("display"); err == nil {
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displayMode = displayCookie.Value
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}
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}
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if displayMode == "" || (displayMode != "mosaic" && displayMode != "list") {
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displayMode = "mosaic"
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}
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http.SetCookie(w, &http.Cookie{
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Name: "display",
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Value: displayMode,
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Path: scope,
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Secure: r.TLS != nil,
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})
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return displayMode
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}
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// handleSortOrder gets and stores for a Listing the 'sort' and 'order',
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// and reads 'limit' if given. The latter is 0 if not given. Sets cookies.
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func handleSortOrder(w http.ResponseWriter, r *http.Request, scope string) (sort string, order string, err error) {
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sort = r.URL.Query().Get("sort")
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order = r.URL.Query().Get("order")
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// If the query 'sort' or 'order' is empty, use defaults or any values
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// previously saved in Cookies.
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switch sort {
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case "":
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sort = "name"
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if sortCookie, sortErr := r.Cookie("sort"); sortErr == nil {
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sort = sortCookie.Value
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}
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case "name", "size", "type":
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http.SetCookie(w, &http.Cookie{
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Name: "sort",
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Value: sort,
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Path: scope,
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Secure: r.TLS != nil,
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})
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}
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switch order {
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case "":
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order = "asc"
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if orderCookie, orderErr := r.Cookie("order"); orderErr == nil {
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order = orderCookie.Value
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}
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case "asc", "desc":
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http.SetCookie(w, &http.Cookie{
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Name: "order",
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Value: order,
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Path: scope,
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Secure: r.TLS != nil,
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})
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}
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return
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}
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