Unicode C++
Unicode C++
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Demonstrates 3-legged OAuth1 authorization for Twitter.This example is deprecated and no longer valid.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 Unicode C++ Downloads
#include <CkHttpW.h>
#include <CkHttpRequestW.h>
#include <CkHttpResponseW.h>
#include <CkHashtableW.h>
#include <CkStringBuilderW.h>
#include <CkOAuth2W.h>
#include <CkSocketW.h>
#include <CkTaskW.h>
#include <CkJsonObjectW.h>
#include <CkFileAccessW.h>
void ChilkatSample(void)
{
bool success = false;
const wchar_t *consumerKey = L"TWITTER_CONSUMER_KEY";
const wchar_t *consumerSecret = L"TWITTER_CONSUMER_SECRET";
const wchar_t *requestTokenUrl = L"https://api.twitter.com/oauth/request_token";
const wchar_t *authorizeUrl = L"https://api.twitter.com/oauth/authorize";
const wchar_t *accessTokenUrl = L"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..
const wchar_t *callbackUrl = L"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
CkHttpW http;
http.put_OAuth1(true);
http.put_OAuthConsumerKey(consumerKey);
http.put_OAuthConsumerSecret(consumerSecret);
CkHttpRequestW req;
req.AddParam(L"oauth_callback",callbackUrl);
req.put_HttpVerb(L"POST");
req.put_ContentType(L"application/x-www-form-urlencoded");
CkHttpResponseW resp;
success = http.HttpReq(requestTokenUrl,req,resp);
if (success == false) {
wprintf(L"%s\n",http.lastErrorText());
return;
}
// If successful, the resp.BodyStr contains something like this:
// oauth_token=-Wa_KwAAAAAAxfEPAAABV8Qar4Q&oauth_token_secret=OfHY4tZBX2HK4f7yIw76WYdvnl99MVGB&oauth_callback_confirmed=true
wprintf(L"%s\n",resp.bodyStr());
if (resp.get_StatusCode() != 200) {
wprintf(L"Failed response status code: %d\n",resp.get_StatusCode());
return;
}
CkHashtableW hashTab;
hashTab.AddQueryParams(resp.bodyStr());
const wchar_t *requestToken = hashTab.lookupStr(L"oauth_token");
const wchar_t *requestTokenSecret = hashTab.lookupStr(L"oauth_token_secret");
http.put_OAuthTokenSecret(requestTokenSecret);
wprintf(L"oauth_token = %s\n",requestToken);
wprintf(L"oauth_token_secret = %s\n",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.
CkStringBuilderW sbUrlForBrowser;
sbUrlForBrowser.Append(authorizeUrl);
sbUrlForBrowser.Append(L"?oauth_token=");
sbUrlForBrowser.Append(requestToken);
const wchar_t *url = sbUrlForBrowser.getAsString();
// Launch the system's default browser navigated to the URL.
CkOAuth2W oauth2;
success = oauth2.LaunchBrowser(url);
if (success == false) {
wprintf(L"%s\n",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.
CkSocketW listenSock;
int backLog = 5;
success = listenSock.BindAndListen(callbackLocalPort,backLog);
if (success == false) {
wprintf(L"%s\n",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.
CkSocketW sock;
int maxWaitMs = 60000;
CkTaskW *task = listenSock.AcceptNextAsync(maxWaitMs,sock);
task->Run();
// 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.
wprintf(L"%s\n",task->lastErrorText());
}
else {
// The ResultErrorText applies to the underlying task method call (i.e. the AcceptNextConnection)
wprintf(L"%s\n",task->status());
wprintf(L"%s\n",task->resultErrorText());
}
delete task;
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);
delete task;
// Read the start line of the request..
const wchar_t *startLine = sock.receiveUntilMatch(L"\r\n");
if (sock.get_LastMethodSuccess() == false) {
wprintf(L"%s\n",sock.lastErrorText());
return;
}
// Read the request header.
const wchar_t *requestHeader = sock.receiveUntilMatch(L"\r\n\r\n");
if (sock.get_LastMethodSuccess() == false) {
wprintf(L"%s\n",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.
CkStringBuilderW sbResponseHtml;
sbResponseHtml.Append(L"<html><body><p>Chilkat thanks you!</b></body</html>");
CkStringBuilderW sbResponse;
sbResponse.Append(L"HTTP/1.1 200 OK\r\n");
sbResponse.Append(L"Content-Length: ");
sbResponse.AppendInt(sbResponseHtml.get_Length());
sbResponse.Append(L"\r\n");
sbResponse.Append(L"Content-Type: text/html\r\n");
sbResponse.Append(L"\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
CkStringBuilderW sbStartLine;
sbStartLine.Append(startLine);
int numReplacements = sbStartLine.Replace(L"GET /?",L"");
numReplacements = sbStartLine.Replace(L" HTTP/1.1",L"");
sbStartLine.Trim();
// oauth_token=abcdRQAAZZAAxfBBAAABVabcd_k&oauth_verifier=9rdOq5abcdCe6cn8M3jabcdj3Eabcd
wprintf(L"startline: %s\n",sbStartLine.getAsString());
hashTab.Clear();
hashTab.AddQueryParams(sbStartLine.getAsString());
requestToken = hashTab.lookupStr(L"oauth_token");
const wchar_t *authVerifier = hashTab.lookupStr(L"oauth_verifier");
// ------------------------------------------------------------------------------
// Finally , we must exchange the OAuth Request Token for an OAuth Access Token.
http.put_OAuthToken(requestToken);
http.put_OAuthVerifier(authVerifier);
// We don't need the "Authorization: OAuth ..." header for this POST.
http.put_OAuth1(false);
req.RemoveParam(L"oauth_callback");
req.AddParam(L"oauth_verifier",authVerifier);
req.AddParam(L"oauth_token",requestToken);
req.put_HttpVerb(L"POST");
req.put_ContentType(L"application/x-www-form-urlencoded");
success = http.HttpReq(accessTokenUrl,req,resp);
if (success == false) {
wprintf(L"%s\n",http.lastErrorText());
return;
}
// Make sure a successful response was received.
if (resp.get_StatusCode() != 200) {
wprintf(L"%s\n",resp.statusLine());
wprintf(L"%s\n",resp.header());
wprintf(L"%s\n",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
wprintf(L"%s\n",resp.bodyStr());
hashTab.Clear();
hashTab.AddQueryParams(resp.bodyStr());
const wchar_t *accessToken = hashTab.lookupStr(L"oauth_token");
const wchar_t *accessTokenSecret = hashTab.lookupStr(L"oauth_token_secret");
const wchar_t *userId = hashTab.lookupStr(L"user_id");
const wchar_t *screenName = hashTab.lookupStr(L"screen_name");
// The access token + secret is what should be saved and used for
// subsequent REST API calls.
wprintf(L"Access Token = %s\n",accessToken);
wprintf(L"Access Token Secret = %s\n",accessTokenSecret);
wprintf(L"user_id = %s\n",userId);
wprintf(L"screen_name = %s\n",screenName);
// Save this access token for future calls.
// Just in case we need user_id and screen_name, save those also..
CkJsonObjectW json;
json.AppendString(L"oauth_token",accessToken);
json.AppendString(L"oauth_token_secret",accessTokenSecret);
json.AppendString(L"user_id",userId);
json.AppendString(L"screen_name",screenName);
CkFileAccessW fac;
fac.WriteEntireTextFile(L"qa_data/tokens/twitter.json",json.emit(),L"utf-8",false);
wprintf(L"Success.\n");
}