func DeleteTag(w http.ResponseWriter, r *http.Request, cfg config.Configuration, ctx model.Context) {
var err error
params := mux.Vars(r)
t := model.Tag{}
err = t.SetTag(params["tag"])
if err != nil {
ctx.Log.Println(err)
http.Error(w, "Invalid tag", 400)
return
}
t.SetTagDir(cfg.Filedir)
// Tag does not exist
if t.TagDirExists() == false {
http.Error(w, "Tag Not Found", 404)
return
}
t.List(cfg.Baseurl)
if err != nil {
ctx.Log.Println(err)
http.Error(w, "Internal Server Error", 500)
return
}
if cfg.TriggerDeleteTag != "" {
ctx.Log.Println("Executing trigger: Delete tag")
triggerDeleteTagHandler(cfg.TriggerDeleteTag, t.Tag)
}
// Tag exists, so let's remove it.
err = t.Remove()
if err != nil {
ctx.Log.Println(err)
http.Error(w, "Internal Server Error", 500)
return
}
// Verify that the tag directory is removed before sending the response.
if t.TagDirExists() == true {
// Failsafe. This should not happen.
ctx.Log.Println("Failed to delete the tag. The tag dir still exists.")
http.Error(w, "Internal Server Error", 500)
return
}
// Purging any old content
if cfg.CacheInvalidation {
for _, f := range t.Files {
if err := f.Purge(); err != nil {
ctx.Log.Println(err)
}
}
}
ctx.Log.Println("Tag deleted successfully.")
http.Error(w, "Tag Deleted Successfully", 200)
return
}