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| author | Devendra | 2013-02-24 03:23:01 +0530 | 
|---|---|---|
| committer | Devendra | 2013-02-24 03:23:01 +0530 | 
| commit | 90224d02e5f2400fb277217342ffa5cd4a7cb2c6 (patch) | |
| tree | 98dafcf7f075ce87c232d7bacb414e4805dbc714 /PubnubCore.py | |
| parent | 7d76f9d0d9c04c2fbc7740a08122fdc4c5622fa3 (diff) | |
| download | pubnub-python-90224d02e5f2400fb277217342ffa5cd4a7cb2c6.tar.bz2 | |
saving work
Diffstat (limited to 'PubnubCore.py')
| -rw-r--r-- | PubnubCore.py | 417 | 
1 files changed, 417 insertions, 0 deletions
diff --git a/PubnubCore.py b/PubnubCore.py new file mode 100644 index 0000000..76e1cdd --- /dev/null +++ b/PubnubCore.py @@ -0,0 +1,417 @@ +## www.pubnub.com - PubNub Real-time push service in the cloud.  +# coding=utf8 + +## PubNub Real-time Push APIs and Notifications Framework +## Copyright (c) 2010 Stephen Blum +## http://www.pubnub.com/ + +## ----------------------------------- +## PubNub 3.0 Real-time Push Cloud API +## ----------------------------------- + +try: import json +except ImportError: import simplejson as json + +import time +import hashlib +import urllib2 +import uuid + +class PubnubCore(object): +    def __init__( +        self, +        publish_key, +        subscribe_key, +        secret_key = False, +        ssl_on = False, +        origin = 'pubsub.pubnub.com', +        pres_uuid = None +    ) : +        """ +        #** +        #* Pubnub +        #* +        #* Init the Pubnub Client API +        #* +        #* @param string publish_key required key to send messages. +        #* @param string subscribe_key required key to receive messages. +        #* @param string secret_key optional key to sign messages. +        #* @param boolean ssl required for 2048 bit encrypted messages. +        #* @param string origin PUBNUB Server Origin. +        #* @param string pres_uuid optional identifier for presence (auto-generated if not supplied) +        #** + +        ## Initiat Class +        pubnub = Pubnub( 'PUBLISH-KEY', 'SUBSCRIBE-KEY', 'SECRET-KEY', False ) + +        """ +        self.origin        = origin +        self.limit         = 1800 +        self.publish_key   = publish_key +        self.subscribe_key = subscribe_key +        self.secret_key    = secret_key +        self.ssl           = ssl_on + +        if self.ssl : +            self.origin = 'https://' + self.origin +        else : +            self.origin = 'http://'  + self.origin +         +        self.uuid = pres_uuid or str(uuid.uuid4()) +         +        if not isinstance(self.uuid, basestring): +            raise AttributeError("pres_uuid must be a string") + +    def publish( self, args ) : +        """ +        #** +        #* Publish +        #* +        #* Send a message to a channel. +        #* +        #* @param array args with channel and message. +        #* @return array success information. +        #** + +        ## Publish Example +        info = pubnub.publish({ +            'channel' : 'hello_world', +            'message' : { +                'some_text' : 'Hello my World' +            } +        }) +        print(info) + +        """ +        ## Fail if bad input. +        if not (args['channel'] and args['message']) : +            return [ 0, 'Missing Channel or Message' ] + +        ## Capture User Input +        channel = str(args['channel']) +        message = json.dumps(args['message'], separators=(',',':')) + + +        ## Capture Callback +        if args.has_key('callback') : +            callback = args['callback'] +        else : +            callback = None  + +        ## Sign Message +        if self.secret_key : +            signature = hashlib.md5('/'.join([ +                self.publish_key, +                self.subscribe_key, +                self.secret_key, +                channel, +                message +            ])).hexdigest() +        else : +            signature = '0' + +        ## Send Message +        return self._request([ +            'publish', +            self.publish_key, +            self.subscribe_key, +            signature, +            channel, +            '0', +            message +        ], callback) + + + +    def subscribe( self, args ) : +        """ +        #** +        #* Subscribe +        #* +        #* This is BLOCKING. +        #* Listen for a message on a channel. +        #* +        #* @param array args with channel and callback. +        #* @return false on fail, array on success. +        #** + +        ## Subscribe Example +        def receive(message) : +            print(message) +            return True + +        pubnub.subscribe({ +            'channel'  : 'hello_world', +            'callback' : receive  +        }) + +        """ + +        ## Fail if missing channel +        if not 'channel' in args : +            raise Exception('Missing Channel.') +            return False + +        ## Fail if missing callback +        if not 'callback' in args : +            raise Exception('Missing Callback.') +            return False + +        ## Capture User Input +        channel   = str(args['channel']) +        callback  = args['callback'] +        subscribe_key = args.get('subscribe_key') or self.subscribe_key + +        ## Begin Subscribe +        while True : + +            timetoken = 'timetoken' in args and args['timetoken'] or 0 +            try : +                ## Wait for Message +                response = self._request(self._encode([ +                    'subscribe', +                    subscribe_key, +                    channel, +                    '0', +                    str(timetoken) +                ])+['?uuid='+self.uuid], encode=False) + +                messages          = response[0] +                args['timetoken'] = response[1] + +                ## If it was a timeout +                if not len(messages) : +                    continue + +                ## Run user Callback and Reconnect if user permits. +                for message in messages : +                    if not callback(message) : +                        return + +            except Exception: +                time.sleep(1) + +        return True +     +    def presence( self, args ) : +        """ +        #** +        #* presence +        #* +        #* This is BLOCKING. +        #* Listen for presence events on a channel. +        #* +        #* @param array args with channel and callback. +        #* @return false on fail, array on success. +        #** + +        ## Presence Example +        def pres_event(message) : +            print(message) +            return True + +        pubnub.presence({ +            'channel'  : 'hello_world', +            'callback' : receive  +        }) +        """ + +        ## Fail if missing channel +        if not 'channel' in args : +            raise Exception('Missing Channel.') +            return False + +        ## Fail if missing callback +        if not 'callback' in args : +            raise Exception('Missing Callback.') +            return False + +        ## Capture User Input +        channel   = str(args['channel']) +        callback  = args['callback'] +        subscribe_key = args.get('subscribe_key') or self.subscribe_key +         +        return self.subscribe({'channel': channel+'-pnpres', 'subscribe_key':subscribe_key, 'callback': callback}) +     +     +    def here_now( self, args ) : +        """ +        #** +        #* Here Now +        #* +        #* Load current occupancy from a channel. +        #* +        #* @param array args with 'channel'. +        #* @return mixed false on fail, array on success. +        #* + +        ## Presence Example +        here_now = pubnub.here_now({ +            'channel' : 'hello_world', +        }) +        print(here_now['occupancy']) +        print(here_now['uuids']) + +        """ +        channel = str(args['channel']) + +        ## Capture Callback +        if args.has_key('callback') : +            callback = args['callback'] +        else : +            callback = None +         +        ## Fail if bad input. +        if not channel : +            raise Exception('Missing Channel') +            return False +         +        ## Get Presence Here Now +        return self._request([ +            'v2','presence', +            'sub_key', self.subscribe_key, +            'channel', channel +        ], callback); +         +         +    def history( self, args ) : +        """ +        #** +        #* History +        #* +        #* Load history from a channel. +        #* +        #* @param array args with 'channel' and 'limit'. +        #* @return mixed false on fail, array on success. +        #* + +        ## History Example +        history = pubnub.history({ +            'channel' : 'hello_world', +            'limit'   : 1 +        }) +        print(history) + +        """ +        ## Capture User Input +        limit   = args.has_key('limit') and int(args['limit']) or 10 +        channel = str(args['channel']) + +        ## Fail if bad input. +        if not channel : +            raise Exception('Missing Channel') +            return False + +        ## Capture Callback +        if args.has_key('callback') : +            callback = args['callback'] +        else : +            callback = None + +        ## Get History +        return self._request([ +            'history', +            self.subscribe_key, +            channel, +            '0', +            str(limit) +        ] , callback); + +    def detailedHistory(self, args) : +        """ +        #** +        #* Detailed History +        #* +        #* Load Detailed history from a channel. +        #* +        #* @param array args with 'channel', optional: 'start', 'end', 'reverse', 'count' +        #* @return mixed false on fail, array on success. +        #* + +        ## History Example +        history = pubnub.detailedHistory({ +            'channel' : 'hello_world', +            'count'   : 5 +        }) +        print(history) + +        """ +        ## Capture User Input +        channel = str(args['channel']) + +        params = []  +        count = 100     +         +        if args.has_key('count'): +            count = int(args['count']) + +        params.append('count' + '=' + str(count))     +         +        if args.has_key('reverse'): +            params.append('reverse' + '=' + str(args['reverse']).lower()) + +        if args.has_key('start'): +            params.append('start' + '=' + str(args['start'])) + +        if args.has_key('end'): +            params.append('end' + '=' + str(args['end'])) + +        ## Fail if bad input. +        if not channel : +            raise Exception('Missing Channel') +            return False + +        ## Capture Callback +        if args.has_key('callback') : +            callback = args['callback'] +        else : +            callback = None  + +        ## Get History +        return self._request([ +            'v2', +            'history', +            'sub-key', +            self.subscribe_key, +            'channel', +            channel, +        ],params=params , callback=callback); + +    def time(self, args = None) : +        """ +        #** +        #* Time +        #* +        #* Timestamp from PubNub Cloud. +        #* +        #* @return int timestamp. +        #* + +        ## PubNub Server Time Example +        timestamp = pubnub.time() +        print(timestamp) + +        """ +        ## Capture Callback +        if args and args.has_key('callback') : +            callback = args['callback'] +        else : +            callback = None  +        time = self._request([ +            'time', +            '0' +        ], callback) +        if time != None: +            return time[0] + + +    def _encode( self, request ) : +        return [ +            "".join([ ' ~`!@#$%^&*()+=[]\\{}|;\':",./<>?'.find(ch) > -1 and +                hex(ord(ch)).replace( '0x', '%' ).upper() or +                ch for ch in list(bit) +            ]) for bit in request] + + + +  | 
