Node.js
Node.js
Twitter OAuth1 Authorization (3-legged)
See more OAuth1 Examples
Demonstrates 3-legged OAuth1 authorization for Twitter.This example is deprecated and no longer valid.
Chilkat Node.js Downloads
NODEJS_PRELUDE
function chilkatExample() {
var success = false;
var consumerKey = "TWITTER_CONSUMER_KEY";
var consumerSecret = "TWITTER_CONSUMER_SECRET";
var requestTokenUrl = "https://api.twitter.com/oauth/request_token";
var authorizeUrl = "https://api.twitter.com/oauth/authorize";
var accessTokenUrl = "https://api.twitter.com/oauth/access_token";
// The port number is picked at random. It's some unused port that won't likely conflict with anything else..
var callbackUrl = "http://localhost:3017/";
var callbackLocalPort = 3017;
// The 1st step in 3-legged OAuth1.0a is to send a POST to the request token URL to obtain an OAuth Request Token
var http = new chilkat.Http();
http.OAuth1 = true;
http.OAuthConsumerKey = consumerKey;
http.OAuthConsumerSecret = consumerSecret;
var req = new chilkat.HttpRequest();
req.AddParam("oauth_callback",callbackUrl);
req.HttpVerb = "POST";
req.ContentType = "application/x-www-form-urlencoded";
var resp = new chilkat.HttpResponse();
success = http.HttpReq(requestTokenUrl,req,resp);
if (success == false) {
console.log(http.LastErrorText);
return;
}
// If successful, the resp.BodyStr contains something like this:
// oauth_token=-Wa_KwAAAAAAxfEPAAABV8Qar4Q&oauth_token_secret=OfHY4tZBX2HK4f7yIw76WYdvnl99MVGB&oauth_callback_confirmed=true
console.log(resp.BodyStr);
if (resp.StatusCode !== 200) {
console.log("Failed response status code: " + resp.StatusCode);
return;
}
var hashTab = new chilkat.Hashtable();
hashTab.AddQueryParams(resp.BodyStr);
var requestToken = hashTab.LookupStr("oauth_token");
var requestTokenSecret = hashTab.LookupStr("oauth_token_secret");
http.OAuthTokenSecret = requestTokenSecret;
console.log("oauth_token = " + requestToken);
console.log("oauth_token_secret = " + requestTokenSecret);
// ---------------------------------------------------------------------------
// The next step is to form a URL to send to the authorizeUrl
// This is an HTTP GET that we load into a popup browser.
var sbUrlForBrowser = new chilkat.StringBuilder();
sbUrlForBrowser.Append(authorizeUrl);
sbUrlForBrowser.Append("?oauth_token=");
sbUrlForBrowser.Append(requestToken);
var url = sbUrlForBrowser.GetAsString();
// Launch the system's default browser navigated to the URL.
var oauth2 = new chilkat.OAuth2();
success = oauth2.LaunchBrowser(url);
if (success == false) {
console.log(oauth2.LastErrorText);
return;
}
// When the url is loaded into a browser, the response from Twitter will redirect back to localhost:3017
// We'll need to start a socket that is listening on port 3017 for the callback from the browser.
var listenSock = new chilkat.Socket();
var backLog = 5;
success = listenSock.BindAndListen(callbackLocalPort,backLog);
if (success == false) {
console.log(listenSock.LastErrorText);
return;
}
// Wait for the browser's connection in a background thread.
// (We'll send load the URL into the browser following this..)
// Wait a max of 60 seconds before giving up.
var sock = new chilkat.Socket();
var maxWaitMs = 60000;
// task: Task
var task = listenSock.AcceptNextAsync(maxWaitMs,sock);
task.Run();
// Wait for the listenSock's task to complete.
success = task.Wait(maxWaitMs);
if (!success || (task.StatusInt !== 7) || (task.TaskSuccess !== true)) {
if (!success) {
// The task.LastErrorText applies to the Wait method call.
console.log(task.LastErrorText);
}
else {
// The ResultErrorText applies to the underlying task method call (i.e. the AcceptNextConnection)
console.log(task.Status);
console.log(task.ResultErrorText);
}
return;
}
// If we get to this point, the connection from the browser arrived and was accepted.
// We no longer need the listen socket...
// Stop listening on port 3017.
listenSock.Close(10);
// Read the start line of the request..
var startLine = sock.ReceiveUntilMatch("\r\n");
if (sock.LastMethodSuccess == false) {
console.log(sock.LastErrorText);
return;
}
// Read the request header.
var requestHeader = sock.ReceiveUntilMatch("\r\n\r\n");
if (sock.LastMethodSuccess == false) {
console.log(sock.LastErrorText);
return;
}
// The browser SHOULD be sending us a GET request, and therefore there is no body to the request.
// Once the request header is received, we have all of it.
// We can now send our HTTP response.
var sbResponseHtml = new chilkat.StringBuilder();
sbResponseHtml.Append("<html><body><p>Chilkat thanks you!</b></body</html>");
var sbResponse = new chilkat.StringBuilder();
sbResponse.Append("HTTP/1.1 200 OK\r\n");
sbResponse.Append("Content-Length: ");
sbResponse.AppendInt(sbResponseHtml.Length);
sbResponse.Append("\r\n");
sbResponse.Append("Content-Type: text/html\r\n");
sbResponse.Append("\r\n");
sbResponse.AppendSb(sbResponseHtml);
sock.SendString(sbResponse.GetAsString());
sock.Close(50);
// The information we need is in the startLine.
// For example, the startLine will look like this:
// GET /?oauth_token=abcdRQAAZZAAxfBBAAABVabcd_k&oauth_verifier=9rdOq5abcdCe6cn8M3jabcdj3Eabcd HTTP/1.1
var sbStartLine = new chilkat.StringBuilder();
sbStartLine.Append(startLine);
var numReplacements = sbStartLine.Replace("GET /?","");
numReplacements = sbStartLine.Replace(" HTTP/1.1","");
sbStartLine.Trim();
// oauth_token=abcdRQAAZZAAxfBBAAABVabcd_k&oauth_verifier=9rdOq5abcdCe6cn8M3jabcdj3Eabcd
console.log("startline: " + sbStartLine.GetAsString());
hashTab.Clear();
hashTab.AddQueryParams(sbStartLine.GetAsString());
requestToken = hashTab.LookupStr("oauth_token");
var authVerifier = hashTab.LookupStr("oauth_verifier");
// ------------------------------------------------------------------------------
// Finally , we must exchange the OAuth Request Token for an OAuth Access Token.
http.OAuthToken = requestToken;
http.OAuthVerifier = authVerifier;
// We don't need the "Authorization: OAuth ..." header for this POST.
http.OAuth1 = false;
req.RemoveParam("oauth_callback");
req.AddParam("oauth_verifier",authVerifier);
req.AddParam("oauth_token",requestToken);
req.HttpVerb = "POST";
req.ContentType = "application/x-www-form-urlencoded";
success = http.HttpReq(accessTokenUrl,req,resp);
if (success == false) {
console.log(http.LastErrorText);
return;
}
// Make sure a successful response was received.
if (resp.StatusCode !== 200) {
console.log(resp.StatusLine);
console.log(resp.Header);
console.log(resp.BodyStr);
return;
}
// If successful, the resp.BodyStr contains something like this:
// oauth_token=85123455-fF41296Bi3daM8eCo9Y5vZabcdxXpRv864plYPOjr&oauth_token_secret=afiYJOgabcdSfGae7BDvJVVTwys8fUGpra5guZxbmFBZo&user_id=85612355&screen_name=chilkatsoft&x_auth_expires=0
console.log(resp.BodyStr);
hashTab.Clear();
hashTab.AddQueryParams(resp.BodyStr);
var accessToken = hashTab.LookupStr("oauth_token");
var accessTokenSecret = hashTab.LookupStr("oauth_token_secret");
var userId = hashTab.LookupStr("user_id");
var screenName = hashTab.LookupStr("screen_name");
// The access token + secret is what should be saved and used for
// subsequent REST API calls.
console.log("Access Token = " + accessToken);
console.log("Access Token Secret = " + accessTokenSecret);
console.log("user_id = " + userId);
console.log("screen_name = " + screenName);
// Save this access token for future calls.
// Just in case we need user_id and screen_name, save those also..
var json = new chilkat.JsonObject();
json.AppendString("oauth_token",accessToken);
json.AppendString("oauth_token_secret",accessTokenSecret);
json.AppendString("user_id",userId);
json.AppendString("screen_name",screenName);
var fac = new chilkat.FileAccess();
fac.WriteEntireTextFile("qa_data/tokens/twitter.json",json.Emit(),"utf-8",false);
console.log("Success.");
}
chilkatExample();