2019-02-23 10:23:24 +08:00
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package main
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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"net/http"
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"net/url"
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)
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func twitterCallbackHandler(w http.ResponseWriter, r *http.Request) {
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token := r.FormValue("oauth_token")
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verifier := r.FormValue("oauth_verifier")
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twitterCredMapLock.RLock()
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s, ok := twitterCredMap[token]
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twitterCredMapLock.RUnlock()
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commenterToken := s.CommenterToken
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if !ok {
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fmt.Fprintf(w, "no such token/verifier combination found")
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return
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}
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_, err := commenterGetByCommenterToken(commenterToken)
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if err != nil && err != errorNoSuchToken {
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fmt.Fprintf(w, "Error: %s\n", err.Error())
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return
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}
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x, _, err := twitterClient.RequestToken(nil, s.Cred, verifier)
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if err != nil {
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fmt.Fprintf(w, "Error: %s\n", err.Error())
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return
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}
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twitterCredMapLock.Lock()
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delete(twitterCredMap, token)
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twitterCredMapLock.Unlock()
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resp, err := twitterClient.Get(nil, x, "https://api.twitter.com/1.1/account/verify_credentials.json", url.Values{"include_email": {"true"}})
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if err != nil {
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fmt.Fprintf(w, "Error getting email: %s\n", err.Error())
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return
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}
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defer resp.Body.Close()
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if resp.StatusCode != 200 {
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msg, _ := ioutil.ReadAll(resp.Body)
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fmt.Fprintf(w, "Error: status %d: %s\n", resp.StatusCode, msg)
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return
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}
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var res map[string]interface{}
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if err = json.NewDecoder(resp.Body).Decode(&res); err != nil {
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fmt.Fprintf(w, "Error: %s\n", err.Error())
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return
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}
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2019-02-23 11:27:53 +08:00
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if res["email"] == nil {
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fmt.Fprintf(w, "Error: no email address returned by Twitter")
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return
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}
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2019-02-23 10:23:24 +08:00
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email := res["email"].(string)
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2019-02-23 11:27:53 +08:00
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if res["name"] == nil {
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fmt.Fprintf(w, "Error: no name returned by Twitter")
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return
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}
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name := res["name"].(string)
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link := "undefined"
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photo := "undefined"
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if res["handle"] != nil {
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handle := res["screen_name"].(string)
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link = "https://twitter.com/" + handle
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photo = "https://twitter.com/" + handle + "/profile_image"
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}
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2019-02-23 10:23:24 +08:00
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c, err := commenterGetByEmail("twitter", email)
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if err != nil && err != errorNoSuchCommenter {
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fmt.Fprintf(w, "Error: %s", err.Error())
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return
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}
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var commenterHex string
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// TODO: in case of returning users, update the information we have on record?
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if err == errorNoSuchCommenter {
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commenterHex, err = commenterNew(email, name, link, photo, "twitter", "")
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if err != nil {
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fmt.Fprintf(w, "Error: %s", err.Error())
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return
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}
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} else {
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commenterHex = c.CommenterHex
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}
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if err := commenterSessionUpdate(commenterToken, commenterHex); err != nil {
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fmt.Fprintf(w, "Error: %s", err.Error())
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return
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}
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fmt.Fprintf(w, "<html><script>window.parent.close()</script></html>")
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}
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