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November 12, 2012 05:54
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Getting a Facebook Access Token in python via QWebView + Facebook Javascript SDK
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| from PySide.QtCore import Slot | |
| from PySide.QtGui import QApplication, QMainWindow, QDialog, QVBoxLayout | |
| from PySide.QtWebKit import QWebView, QWebPage, QWebSettings | |
| import sys | |
| from functools import partial | |
| from argparse import ArgumentParser | |
| ap = ArgumentParser() | |
| ap.add_argument('app_id', type=int) | |
| ns = ap.parse_args() | |
| app = QApplication(sys.argv) | |
| win = QMainWindow() | |
| win.application = app | |
| webview = QWebView(win) | |
| class MyWebPage(QWebPage): | |
| def __init__(self, *args, **kwargs): | |
| QWebPage.__init__(self, *args, **kwargs) | |
| self.mainFrame().addToJavaScriptWindowObject('qpage', self) | |
| def javaScriptConsoleMessage(self, message, lineNumber, sourceID): | |
| print "JS (%s:%d)> %s" % (sourceID, lineNumber, message) | |
| def createWindow(self, type): | |
| view = QWebView(self.parent()) | |
| view.show() | |
| view.page().windowCloseRequested.connect( | |
| partial(self.onWindowCloseRequested, view)) | |
| return view.page() | |
| print "creating window of type", type | |
| page_win = QDialog(win) | |
| child_view = QWebView(page_win) | |
| layout = QVBoxLayout() | |
| page_win.setLayout(layout) | |
| layout.addWidget(child_view) | |
| page_win.setModal(True) | |
| page_win.show() | |
| return child_view.page() | |
| @Slot(str) | |
| def setAccessToken(self, access_token): | |
| print "GOT ACCESS TOKEN: ", access_token | |
| def onWindowCloseRequested(self, view): | |
| view.hide() | |
| webpage = MyWebPage(webview) | |
| webpage.settings().setAttribute(QWebSettings.JavascriptEnabled, True) | |
| webpage.settings().setAttribute(QWebSettings.JavascriptCanOpenWindows, True) | |
| webview.setPage(webpage) | |
| win.setCentralWidget(webview) | |
| win.show() | |
| html = """ | |
| <!DOCTYPE HTML> | |
| <html> | |
| <head> | |
| </head> | |
| <body> | |
| <div id="fb-root" /> | |
| <div id="message" />Connecting to Facebook...</div> | |
| <script src="//connect.facebook.net/en_US/all.js"></script> | |
| </body> | |
| </html> | |
| """ | |
| INIT = """ | |
| FB.init({ | |
| appId : '%s', | |
| status : true, // check the login status upon init? | |
| cookie : false, // set sessions cookies to allow your server to access the session? | |
| xfbml : false // parse XFBML tags on this page? | |
| }); | |
| FB.login(function(response) { | |
| if (response.authResponse) { | |
| window.qpage.setAccessToken(response.authResponse.accessToken); | |
| console.log('Welcome! Fetching your information.... '); | |
| FB.api('/me', function(response) { | |
| console.log('Good to see you, ' + response.name + '.'); | |
| }); | |
| document.getElementById('message').textContent = 'Success!'; | |
| } else { | |
| console.log('User cancelled login or did not fully authorize.'); | |
| document.getElementById('message').textContent = 'failure!'; | |
| } | |
| }); | |
| """ % (ns.app_id) | |
| inited = False | |
| def onload(ok): | |
| global inited | |
| if not inited: | |
| inited = True | |
| webpage.mainFrame().evaluateJavaScript(INIT) | |
| webpage.loadFinished.connect(onload) | |
| webpage.mainFrame().setHtml(html, 'http://localhost:50000/') | |
| app.exec_() |
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