dc54dfe363
* Custom emoji editor: implement backend This reuses the logo upload code * Implement emoji edit admin interface Again reuse base64 logic from the logo upload * Allow toggling between uploaded and default emojis * Add route that always serves uploaded emojis This is needed for the admin emoji interface, as otherwise the emojis will 404 if custom emojis are disabled * Fix linter warnings * Remove custom/uploaded emoji logic * Reset timer after emoji deletion * Setup: copy built-in emojis to emoji directory
93 lines
2.2 KiB
Go
93 lines
2.2 KiB
Go
package admin
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import (
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"encoding/json"
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"fmt"
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"net/http"
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"os"
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"path/filepath"
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"github.com/owncast/owncast/config"
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"github.com/owncast/owncast/controllers"
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"github.com/owncast/owncast/utils"
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)
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// UploadCustomEmoji allows POSTing a new custom emoji to the server.
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func UploadCustomEmoji(w http.ResponseWriter, r *http.Request) {
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if !requirePOST(w, r) {
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return
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}
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type postEmoji struct {
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Name string `json:"name"`
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Data string `json:"data"`
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}
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emoji := new(postEmoji)
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if err := json.NewDecoder(r.Body).Decode(emoji); err != nil {
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controllers.WriteSimpleResponse(w, false, err.Error())
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return
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}
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bytes, _, err := utils.DecodeBase64Image(emoji.Data)
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if err != nil {
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controllers.WriteSimpleResponse(w, false, err.Error())
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return
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}
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// Prevent path traversal attacks
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var emojiFileName = filepath.Base(emoji.Name)
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var targetPath = filepath.Join(config.CustomEmojiPath, emojiFileName)
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err = os.MkdirAll(config.CustomEmojiPath, 0700)
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if err != nil {
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controllers.WriteSimpleResponse(w, false, err.Error())
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return
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}
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if utils.DoesFileExists(targetPath) {
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controllers.WriteSimpleResponse(w, false, fmt.Sprintf("An emoji with the name %q already exists", emojiFileName))
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return
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}
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if err = os.WriteFile(targetPath, bytes, 0o600); err != nil {
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controllers.WriteSimpleResponse(w, false, err.Error())
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return
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}
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controllers.WriteSimpleResponse(w, true, fmt.Sprintf("Emoji %q has been uploaded", emojiFileName))
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}
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// DeleteCustomEmoji deletes a custom emoji.
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func DeleteCustomEmoji(w http.ResponseWriter, r *http.Request) {
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if !requirePOST(w, r) {
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return
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}
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type deleteEmoji struct {
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Name string `json:"name"`
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}
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emoji := new(deleteEmoji)
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if err := json.NewDecoder(r.Body).Decode(emoji); err != nil {
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controllers.WriteSimpleResponse(w, false, err.Error())
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return
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}
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var emojiFileName = filepath.Base(emoji.Name)
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var targetPath = filepath.Join(config.CustomEmojiPath, emojiFileName)
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if err := os.Remove(targetPath); err != nil {
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if os.IsNotExist(err) {
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controllers.WriteSimpleResponse(w, false, fmt.Sprintf("Emoji %q doesn't exist", emojiFileName))
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} else {
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controllers.WriteSimpleResponse(w, false, err.Error())
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}
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return
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}
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controllers.WriteSimpleResponse(w, true, fmt.Sprintf("Emoji %q has been deleted", emojiFileName))
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}
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