登录.py

def getToken(session):
    session.get('http://www.baidu.com')
    token = session.get('https://passport.baidu.com/v2/api/?getapi&class=login&tpl=pp&tangram=false').text
    token_index = token.index('login_token')+len('login_token')+2
    token = token[token_index:-1]
    token = token[0:token.index("'")]
    return token

def getvcode(codestring):
    url = 'https://passport.baidu.com/cgi-bin/genimage?'+codestring
    r = requests.get(url).content
    with open('vcode.gif','wb') as f:
        f.write(r)
    p = Popen(['feh','vcode.gif'])
    ret = input('vcode?')
    p.terminate()
    return ret
    
def login(username,password):
    session = requests.session()
    # Check if we have to deal with verify codes
    get_params = {
        'tpl':'pp',
        'callback':'bdPass.api.login._needCodestringCheckCallback',
        'index':0,
        'logincheck':'',
        'time':0,
        'username':username
    }
    # Ask server
    r = session.get('https://passport.baidu.com/v2/api/?logincheck',params=get_params)
    # Callback for verify code if we need
    codestring = r.text[r.text.index('(')+1:r.text.index(')')]
    codestring = json.loads(codestring)['codestring']
    codestring = codestring if codestring != "null" else None
    verifycode = (getvcode(codestring)) if codestring != None else ""
    
    # Now we'll do login
    # Get token
    session.get('http://www.baidu.com')
    token = session.get('https://passport.baidu.com/v2/api/?getapi&class=login&tpl=pp&tangram=false').text
    token_index = token.index('login_token')+len('login_token')+2
    token = token[token_index:-1]
    token = token[0:token.index("'")]

    # Construct post body
    post_data = {
        'token':token,
        'ppui_logintime':'1600000',
        'charset':'utf-8',
        'codestring':codestring,
        'isPhone':'false',
        'index':0,
        'u':'',
        'safeflg':0,
        'staticpage':'http://www.baidu.com/cache/user/html/jump.html',
        'loginType':1,
        'tpl':'pp',
        'callback':'parent.bd__pcbs__qvljue',
        'username':username,
        'password':password,
        'verifycode':verifycode,
        'mem_pass':'on',
        'apiver':'v3'
    }

    # Post!
    # XXX : do not handle errors
    r = session.post('https://passport.baidu.com/v2/api/?login',data=post_data)
    return session