94 lines
2.7 KiB
Go
94 lines
2.7 KiB
Go
package main
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import (
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"encoding/json"
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"github.com/gorilla/mux"
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"io/ioutil"
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"log"
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"net/http"
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"net/url"
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"regexp"
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"willnorris.com/go/webmention"
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)
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func Serve() {
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webfingerHandler := func(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("content-type", "application/jrd+json; charset=utf-8")
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name := r.URL.Query().Get("resource") // should be something like acct:user@example.com
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urlBaseUrl, _ := url.Parse(baseURL)
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re := regexp.MustCompile(`^acct:(.*)@` + regexp.QuoteMeta(urlBaseUrl.Host) + `$`)
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name = re.ReplaceAllString(name, "$1")
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actor := actors[name]
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// error out if this actor does not exist
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if actor == nil {
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w.WriteHeader(http.StatusNotFound)
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return
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}
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responseMap := make(map[string]interface{})
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responseMap["subject"] = "acct:" + actor.Name + "@" + urlBaseUrl.Host
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// links is a json array with a single element
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var links [1]map[string]string
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link1 := make(map[string]string)
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link1["rel"] = "self"
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link1["type"] = ContentTypeAs2
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link1["href"] = actor.iri
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links[0] = link1
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responseMap["links"] = links
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response, _ := json.Marshal(responseMap)
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_, _ = w.Write(response)
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}
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inboxHandler := func(w http.ResponseWriter, r *http.Request) {
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b, err := ioutil.ReadAll(r.Body)
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if err != nil {
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panic(err)
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}
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activity := make(map[string]interface{})
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err = json.Unmarshal(b, &activity)
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if err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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if activity["type"] == "Follow" {
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actor := actors[mux.Vars(r)["actor"]]
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// error out if this actor does not exist
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if actor == nil {
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w.WriteHeader(http.StatusNotFound)
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return
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}
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actor.Accept(activity)
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} else if activity["type"] == "Undo" {
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// TODO: Implement unfollow
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} else if activity["type"] == "Create" {
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object, ok := activity["object"].(map[string]interface{})
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if ok {
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inReplyTo, ok := object["inReplyTo"].(string)
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id, ok2 := object["id"].(string)
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if ok && ok2 && len(inReplyTo) > 0 && len(id) > 0 {
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webmentionClient := webmention.New(&client)
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endpoint, err := webmentionClient.DiscoverEndpoint(inReplyTo)
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if err != nil || len(endpoint) < 1 {
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return
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}
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_, err = webmentionClient.SendWebmention(endpoint, id, inReplyTo)
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if err != nil {
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log.Println("Sending webmention to " + inReplyTo + " failed")
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return
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}
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log.Println("Sent webmention to " + inReplyTo)
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}
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}
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}
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}
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// Add the handlers to a HTTP server
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gorilla := mux.NewRouter()
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gorilla.HandleFunc("/.well-known/webfinger", webfingerHandler)
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gorilla.HandleFunc("/{actor}/inbox", inboxHandler)
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gorilla.HandleFunc("/{actor}/inbox/", inboxHandler)
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http.Handle("/", gorilla)
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log.Fatal(http.ListenAndServe(":8081", nil))
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}
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