Java
Java
Trello OAuth1 Authorization
See more OAuth1 Examples
Demonstrates OAuth1 authentication for Trello.Chilkat Java Downloads
import com.chilkatsoft.*;
public class ChilkatExample {
static {
try {
System.loadLibrary("chilkat");
} catch (UnsatisfiedLinkError e) {
System.err.println("Native code library failed to load.\n" + e);
System.exit(1);
}
}
public static void main(String argv[])
{
boolean success = false;
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
String consumerKey = "TRELLO_CONSUMER_KEY";
String consumerSecret = "TRELLO_CONSUMER_SECRET";
String requestTokenUrl = "https://trello.com/1/OAuthGetRequestToken";
String authorizeUrl = "https://trello.com/1/OAuthAuthorizeToken";
String accessTokenUrl = "https://trello.com/1/OAuthGetAccessToken";
// The port number is picked at random. It's some unused port that won't likely conflict with anything else..
String callbackUrl = "http://localhost:3017/";
int 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
CkHttp http = new CkHttp();
http.put_OAuth1(true);
http.put_OAuthConsumerKey(consumerKey);
http.put_OAuthConsumerSecret(consumerSecret);
http.put_OAuthCallback(callbackUrl);
CkHttpRequest req = new CkHttpRequest();
req.put_HttpVerb("POST");
req.put_ContentType("application/x-www-form-urlencoded");
CkHttpResponse resp = new CkHttpResponse();
success = http.HttpReq(requestTokenUrl,req,resp);
if (success == false) {
System.out.println(http.lastErrorText());
return;
}
// If successful, the resp.BodyStr contains something like this:
// oauth_token=c173ff088a09a67389a42b1ee22366a4&oauth_token_secret=717e6015c6749fe050a923516e739dbb&oauth_callback_confirmed=true
System.out.println(resp.bodyStr());
CkHashtable hashTab = new CkHashtable();
hashTab.AddQueryParams(resp.bodyStr());
String requestToken = hashTab.lookupStr("oauth_token");
String requestTokenSecret = hashTab.lookupStr("oauth_token_secret");
http.put_OAuthTokenSecret(requestTokenSecret);
System.out.println("oauth_token = " + requestToken);
System.out.println("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.
CkStringBuilder sbUrlForBrowser = new CkStringBuilder();
sbUrlForBrowser.Append(authorizeUrl);
sbUrlForBrowser.Append("?oauth_token=");
sbUrlForBrowser.Append(requestToken);
sbUrlForBrowser.Append("&scope=read,write,account");
String url = sbUrlForBrowser.getAsString();
System.out.println("url = " + url);
// When the urlForBrowser is loaded into a browser, the response from Trello 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.
CkSocket listenSock = new CkSocket();
int backLog = 5;
success = listenSock.BindAndListen(callbackLocalPort,backLog);
if (success == false) {
System.out.println(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.
CkSocket sock = new CkSocket();
int maxWaitMs = 60000;
CkTask task = listenSock.AcceptNextAsync(maxWaitMs,sock);
task.Run();
// Launch the system's default browser navigated to the URL.
CkOAuth2 oauth2 = new CkOAuth2();
success = oauth2.LaunchBrowser(url);
if (success == false) {
System.out.println(oauth2.lastErrorText());
return;
}
// Wait for the listenSock's task to complete.
success = task.Wait(maxWaitMs);
if (!success || (task.get_StatusInt() != 7) || (task.get_TaskSuccess() != true)) {
if (!success) {
// The task.LastErrorText applies to the Wait method call.
System.out.println(task.lastErrorText());
}
else {
// The ResultErrorText applies to the underlying task method call (i.e. the AcceptNextConnection)
System.out.println(task.status());
System.out.println(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..
String startLine = sock.receiveUntilMatch("\r\n");
if (sock.get_LastMethodSuccess() == false) {
System.out.println(sock.lastErrorText());
return;
}
// Read the request header.
String requestHeader = sock.receiveUntilMatch("\r\n\r\n");
if (sock.get_LastMethodSuccess() == false) {
System.out.println(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.
CkStringBuilder sbResponseHtml = new CkStringBuilder();
sbResponseHtml.Append("<html><body><p>Chilkat thanks you!</b></body</html>");
CkStringBuilder sbResponse = new CkStringBuilder();
sbResponse.Append("HTTP/1.1 200 OK\r\n");
sbResponse.Append("Content-Length: ");
sbResponse.AppendInt(sbResponseHtml.get_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 something like this:
// GET /?oauth_token=c173ff088a09a67389b42b1ee32366a4&oauth_verifier=c65bc8eed882e04bb94023bb12c0dbef HTTP/1.1
CkStringBuilder sbStartLine = new CkStringBuilder();
sbStartLine.Append(startLine);
int numReplacements = sbStartLine.Replace("GET /?","");
numReplacements = sbStartLine.Replace(" HTTP/1.1","");
sbStartLine.Trim();
// oauth_token=c173ff088a09a67389b42b1ee32366a4&oauth_verifier=c65bc8eed882e04bb94023bb12c0dbef
System.out.println("startline: " + sbStartLine.getAsString());
hashTab.Clear();
hashTab.AddQueryParams(sbStartLine.getAsString());
requestToken = hashTab.lookupStr("oauth_token");
String authVerifier = hashTab.lookupStr("oauth_verifier");
// ------------------------------------------------------------------------------
// Finally , we must exchange the OAuth Request Token for an OAuth Access Token.
http.put_OAuthToken(requestToken);
http.put_OAuthVerifier(authVerifier); req.put_HttpVerb("POST");
req.put_HttpVerb("POST");
req.put_ContentType("application/x-www-form-urlencoded");
success = http.HttpReq(accessTokenUrl,req,resp);
if (success == false) {
System.out.println(http.lastErrorText());
return;
}
// Make sure a successful response was received.
if (resp.get_StatusCode() != 200) {
System.out.println(resp.statusLine());
System.out.println(resp.header());
System.out.println(resp.bodyStr());
return;
}
// If successful, the resp.BodyStr contains something like this:
// oauth_token=4618e19f5101b7199f75aA9e678d1585576ad84fb89fa40c85c4da13589010d5&oauth_token_secret=64a997b26ea1f47105eca36ce1a5d22e
System.out.println("response BodyStr = " + resp.bodyStr());
hashTab.Clear();
hashTab.AddQueryParams(resp.bodyStr());
String accessToken = hashTab.lookupStr("oauth_token");
String accessTokenSecret = hashTab.lookupStr("oauth_token_secret");
// The access token + secret is what should be saved and used for
// subsequent REST API calls.
System.out.println("Access Token = " + accessToken);
System.out.println("Access Token Secret = " + accessTokenSecret);
// Save the access token for subsequent REST API calls.
CkJsonObject json = new CkJsonObject();
json.AppendString("oauth_token",accessToken);
json.AppendString("oauth_token_secret",accessTokenSecret);
CkFileAccess fac = new CkFileAccess();
fac.WriteEntireTextFile("qa_data/tokens/trello.json",json.emit(),"utf-8",false);
System.out.println("Success.");
}
}