Created
May 23, 2015 07:35
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Facebook Authentication using web.py
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| import web | |
| import requests | |
| client_id = '<client id>' | |
| client_secret = '<client secret>' | |
| fb_graph = 'https://graph.facebook.com/v2.3/' | |
| urls = [ | |
| '/', 'Index', | |
| '/login', 'Login' | |
| ] | |
| app = web.application(urls, globals()) | |
| class Index: | |
| def GET(self): | |
| i = web.input() | |
| if not i.get('access_token'): | |
| raise web.seeother('/login') | |
| r = requests.get(fb_graph+'me', params={'access_token':i.get('access_token')}).json() | |
| return "<html><h3>%s (%s)</h3><img src='%s' /><br/><a href='%s'>View Profile</a></html>"%(r['name'], r['gender'], fb_graph+r['id']+'/picture', r['link']) | |
| class Login: | |
| def GET(self): | |
| i = web.input() | |
| uri = web.ctx.realhome+web.ctx.fullpath | |
| ### TODO: CSRF prevention with state variable | |
| if not i.get('code'): | |
| raise web.seeother('https://www.facebook.com/dialog/oauth?client_id='+client_id+'&redirect_uri='+uri) | |
| r = requests.get(fb_graph+'oauth/access_token', params={ | |
| 'client_id':client_id, | |
| 'client_secret':client_secret, | |
| 'code':i.get('code'), | |
| 'redirect_uri':uri | |
| }) | |
| obj = r.json() | |
| print obj | |
| if obj.get('error'): | |
| err = obj['error'] | |
| if not err.get('code'): | |
| return "<h1 style='color:#F00;'>%s</h1>%s"%(err, obj['error_description']) | |
| else: | |
| raise web.seeother('/login') | |
| raise web.seeother('/?access_token='+obj['access_token']) | |
| if __name__=='__main__': | |
| app.run() |
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