tw_stream.py

#!/usr/bin/python
#-*- encoding:utf-8 -*-
"""
require :  simplejson
simplejson - Project Hosting on Google Code http://code.google.com/p/simplejson/

oauthのコンシューマIDとアクセストークンは自分で取得してください

$ python tw_stream.py <抽出ユーザー名>

"""

ckey = ""
csecret = ""
atoken =""
atoken_secret = "" 

from sys import argv
import time, random
import urllib, urllib2
import hmac, hashlib
import cgi
import simplejson
import time
from time import sleep , time ,strftime,localtime

def make_signature(params, url, method, csecret, secret = ""):
    # Generate Signature Base String
    plist = []
    for i in sorted(params):
        plist.append("%s=%s" % (i, params[i]))

    pstr = "&".join(plist)
    msg = "%s&%s&%s" % (method, urllib.quote(url, ""),
                        urllib.quote(pstr, ""))

    # Calculate Signature
    h = hmac.new("%s&%s" % (csecret, secret), msg, hashlib.sha1)
    sig = h.digest().encode("base64").strip()
    
    return sig

def init_params():
    p = {
        "oauth_consumer_key": ckey,
        "oauth_signature_method": "HMAC-SHA1",
        "oauth_timestamp": str(int(time())),
        "oauth_nonce": str(random.getrandbits(64)),
        "oauth_version": "1.0"
        }

    return p

def oauth_header(params):
    plist = []
    for p in params:
        plist.append('%s="%s"' % (p, urllib.quote(params[p])))
        
    return "OAuth %s" % (", ".join(plist))

reqt_url = 'http://twitter.com/oauth/request_token'
auth_url = 'http://twitter.com/oauth/authorize'
acct_url = 'http://twitter.com/oauth/access_token'
chirp_url ='http://chirpstream.twitter.com/2b/user.json' 

if not atoken and not atoken_secret:
    # Request Parameters
    params = init_params()

    print "Get request token:",
    
    # Generate Signature
    sig = make_signature(params, reqt_url, "GET", csecret)
    params["oauth_signature"] = sig

    # Get Token
    req = urllib2.Request("%s?%s" % (reqt_url, urllib.urlencode(params)))
    resp = urllib2.urlopen(req)
    
    print "\t[OK]"
    
    # Parse Token Parameters
    ret = cgi.parse_qs(resp.read())
    token = ret["oauth_token"][0]
    token_secret = ret["oauth_token_secret"][0]

    # Get PIN
    print "* Please access to this URL, and allow."
    print "> %s?%s=%s" % (auth_url, "oauth_token", token)
    print "\n* After that, will display 7 digit PIN, input here."
    print "PIN ->",
    pin = raw_input()
    pin = int(pin)
    
    print "Get access token:",
    
    # Generate Access Token Request
    params = init_params()
    params["oauth_verifier"] = pin
    params["oauth_token"] = token
    
    sig = make_signature(params, acct_url, "GET", csecret, token_secret)
    params["oauth_signature"] = sig
    
    # Get Access Token
    req = urllib2.Request("%s?%s" % (acct_url, urllib.urlencode(params)))
    resp = urllib2.urlopen(req)
    
    print "\t[OK]"
    
    # Parse Access Token
    fin = cgi.parse_qs(resp.read())
    atoken = fin["oauth_token"][0]
    atoken_secret = fin["oauth_token_secret"][0]
    
    print "Access Token: %s" % atoken
    print "Access Token Secret: %s" % atoken_secret
    
    print "Your screen_name is '%s'." % fin["screen_name"][0]

def getChirpStream():
    url ='http://chirpstream.twitter.com/2b/user.json' 
    params = init_params()
    params["oauth_token"] = atoken
    
    sig = make_signature(params, url, "GET", csecret, atoken_secret)
    params["oauth_signature"] = sig

    req = urllib2.Request(url)
    req.add_header("Authorization", oauth_header(params))
    return urllib2.urlopen(req)


def main(argv):
    stream = getChirpStream()
    stream.readline()
    stream.readline()
    extract = argv[1]
    while 1:
      try:
        recv = stream.readline()
        json = simplejson.loads(recv)
        if json.has_key("event"):
            text = json["source"]["screen_name"]+ " "+ json["event"] +"\t"+json["target"]["screen_name"]+":"

            if json["event"] == "favorite":
                text+= json["target_object"]["text"]
            elif json["event"] == "retweet":
                text+=" "+json["target_object"]["text"]
            # elif json["event"] == "follow":
            #     print json["target"]["description"]
            print text
            if json["target"]["screen_name"] == extract:
                print "==================== check it!"
      try:pass

if __name__ == "__main__":
    main(argv)