102 lines
2.3 KiB
Go
102 lines
2.3 KiB
Go
// Highly experimental plugin for caching rendered pages for guests
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package main
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import (
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"log"
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"bytes"
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"sync/atomic"
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"net/http"
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"net/http/httptest"
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c "github.com/Azareal/Gosora/common"
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"github.com/Azareal/Gosora/routes"
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)
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var hyperspace *Hyperspace
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func init() {
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c.Plugins.Add(&c.Plugin{UName: "hyperdrive", Name: "Hyperdrive", Author: "Azareal", Init: initHdrive, Deactivate: deactivateHdrive})
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}
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func initHdrive(plugin *c.Plugin) error {
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hyperspace = newHyperspace()
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plugin.AddHook("tasks_tick_topic_list",tickHdrive)
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plugin.AddHook("route_topic_list_start",jumpHdrive)
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return nil
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}
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func deactivateHdrive(plugin *c.Plugin) {
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plugin.RemoveHook("tasks_tick_topic_list",tickHdrive)
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plugin.RemoveHook("route_topic_list_start",jumpHdrive)
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hyperspace = nil
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}
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type Hyperspace struct {
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topicList atomic.Value
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}
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func newHyperspace() *Hyperspace {
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pageCache := new(Hyperspace)
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pageCache.topicList.Store([]byte(""))
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return pageCache
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}
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// TODO: Find a better way of doing this
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func tickHdrive(args ...interface{}) (skip bool, rerr c.RouteError) {
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log.Print("Refueling...")
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w := httptest.NewRecorder()
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req := httptest.NewRequest("get", "/topics/", bytes.NewReader(nil))
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user := c.GuestUser
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head, err := c.UserCheck(w, req, &user)
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if err != nil {
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c.LogWarning(err)
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return true, rerr
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}
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rerr = routes.TopicList(w, req, user, head)
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if rerr != nil {
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c.LogWarning(err)
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return true, rerr
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}
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if w.Code != 200 {
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c.LogWarning(err)
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}
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buf := new(bytes.Buffer)
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buf.ReadFrom(w.Result().Body)
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hyperspace.topicList.Store(buf.Bytes())
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return false, nil
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}
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func jumpHdrive(args ...interface{}) (skip bool, rerr c.RouteError) {
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tList := hyperspace.topicList.Load().([]byte)
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if len(tList) == 0 {
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log.Print("no topiclist in hyperspace")
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return false, nil
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}
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// Avoid intercepting user requests as we only have guests in cache right now
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user := args[2].(*c.User)
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if user.ID != 0 {
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log.Print("not guest")
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return false, nil
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}
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// Avoid intercepting search requests and filters as we don't have those in cache
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r := args[1].(*http.Request)
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//log.Print("r.URL.Path:",r.URL.Path)
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log.Print("r.URL.RawQuery:",r.URL.RawQuery)
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if r.URL.RawQuery != "" {
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return false, nil
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}
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log.Print("Successful jump")
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w := args[0].(http.ResponseWriter)
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header := args[3].(*c.Header)
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routes.FootHeaders(w, header)
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w.Write(tList)
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return true, nil
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} |