Retweets don't count for Twitter registrations (#112)

Author: jeffyanta

pkg/code/async/user/twitter.go

@@ -254,6 +254,10 @@ func (p *service) findNewRegistrationTweets(ctx context.Context) ([]*twitter_lib
 }
 
 func (p *service) findVerifiedTipAccountRegisteredInTweet(ctx context.Context, tweet *twitter_lib.Tweet) (*common.Account, *uuid.UUID, error) {
+	if tweet.IsRetweet() {
+		return nil, nil, errTwitterRegistrationNotFound
+	}
+
 	tweetParts := strings.Fields(tweet.Text)
 	for _, tweetPart := range tweetParts {
 		// Look for the well-known prefix to indicate a potential registration value

pkg/twitter/client.go

@@ -8,6 +8,7 @@ import (
 	"io"
 	"net/http"
 	"net/url"
+	"strings"
 	"sync"
 	"time"
 
@@ -306,6 +307,11 @@ func (c *Client) getBearerToken(clientId, clientSecret string) (string, error) {
 	return result.AccessToken, nil
 }
 
+// IsRetweet returns whether the tweet is a retweet
+func (t *Tweet) IsRetweet() bool {
+	return strings.HasPrefix(t.Text, "RT @")
+}
+
 type twitterError struct {
 	Title  string `json:"title"`
 	Detail string `json:"detail"`