diff options
| author | Devendra | 2013-07-05 22:14:19 +0530 | 
|---|---|---|
| committer | Devendra | 2013-07-05 22:14:19 +0530 | 
| commit | e5f767f964b651698812f19d33f5223b9a2ed508 (patch) | |
| tree | f38eb5b4e7a47952dc68092fd8ff9f0a64ad7296 /common | |
| parent | 5a47adb56bfe80c34ed5b04a4824e517a3cde16d (diff) | |
| download | pubnub-python-e5f767f964b651698812f19d33f5223b9a2ed508.tar.bz2 | |
dir structure reorg
Diffstat (limited to 'common')
| -rw-r--r-- | common/PubnubBase.py | 404 | ||||
| -rw-r--r-- | common/PubnubCore.py | 135 | ||||
| -rw-r--r-- | common/PubnubCoreAsync.py | 190 | ||||
| -rw-r--r-- | common/PubnubCrypto.py | 93 | 
4 files changed, 822 insertions, 0 deletions
| diff --git a/common/PubnubBase.py b/common/PubnubBase.py new file mode 100644 index 0000000..07dd27f --- /dev/null +++ b/common/PubnubBase.py @@ -0,0 +1,404 @@ +## 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  +from PubnubCrypto import PubnubCrypto + +class PubnubBase(object): +    def __init__( +        self, +        publish_key, +        subscribe_key, +        secret_key = False, +        cipher_key = False, +        ssl_on = False, +        origin = 'pubsub.pubnub.com', +        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.cipher_key    = cipher_key +        self.ssl           = ssl_on + +        if self.ssl : +            self.origin = 'https://' + self.origin +        else : +            self.origin = 'http://'  + self.origin +         +        self.uuid = UUID or str(uuid.uuid4()) +         +        if not isinstance(self.uuid, basestring): +            raise AttributeError("pres_uuid must be a string") + +    def sign(self, channel, message): +        ## 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' +        return signature + +    def encrypt(self, message): +        if self.cipher_key: +            pc = PubnubCrypto() +            out = [] +            if type( message ) == type(list()): +                for item in message: +                    encryptItem = pc.encrypt(self.cipher_key, item ).rstrip() +                    out.append(encryptItem) +                message = json.dumps(out) +            elif type( message ) == type(dict()): +                outdict = {} +                for k, item in message.iteritems(): +                    encryptItem = pc.encrypt(self.cipher_key, item ).rstrip() +                    outdict[k] = encryptItem +                    out.append(outdict) +                message = json.dumps(out[0]) +            else: +                message = json.dumps(pc.encrypt(self.cipher_key, json.dumps(message)).replace('\n','')) +        else : +            message = json.dumps(message) + +        return message; + +    def decrypt(self, message): +        if self.cipher_key: +            pc = PubnubCrypto() +            if type( message ) == type(list()): +                for item in message: +                    encryptItem = pc.decrypt(self.cipher_key, item ) +                    out.append(encryptItem) +                message = out +            elif type( message ) == type(dict()): +                outdict = {} +                for k, item in message.iteritems(): +                    encryptItem = pc.decrypt(self.cipher_key, item ) +                    outdict[k] = encryptItem +                    out.append(outdict) +                message = out[0] +            else: +                message = pc.decrypt(self.cipher_key, message) + +        return message + + +    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']) + +        ## Capture Callback +        if args.has_key('callback') : +            callback = args['callback'] +        else : +            callback = None  + +        #message = json.dumps(args['message'], separators=(',',':')) +        message = self.encrypt(args['message']) + +        signature = self.sign(channel, message) + +        ## Send Message +        return self._request({"urlcomponents": [ +            'publish', +            self.publish_key, +            self.subscribe_key, +            signature, +            channel, +            '0', +            message +        ]}, callback) +     +    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({"urlcomponents": [ +            '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({ "urlcomponents" : [ +            '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([ ' ~`!@#$%^&*()+=[]\\{}|;\':",./<>?'.find(ch) > -1 and +                hex(ord(ch)).replace( '0x', '%' ).upper() or +                ch for ch in list(bit) +            ]) for bit in request] +     +    def getUrl(self,request): +        ## Build URL +        url = self.origin + '/' + "/".join([ +            "".join([ ' ~`!@#$%^&*()+=[]\\{}|;\':",./<>?'.find(ch) > -1 and +                hex(ord(ch)).replace( '0x', '%' ).upper() or +                ch for ch in list(bit) +            ]) for bit in request["urlcomponents"]]) +        if (request.has_key("urlparams")): +            url = url + '?' + "&".join([ x + "=" + y  for x,y in request["urlparams"].items()]) +        return url diff --git a/common/PubnubCore.py b/common/PubnubCore.py new file mode 100644 index 0000000..4bf143b --- /dev/null +++ b/common/PubnubCore.py @@ -0,0 +1,135 @@ +## 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 +from PubnubBase import PubnubBase + +class PubnubCore(PubnubBase): +    def __init__( +        self, +        publish_key, +        subscribe_key, +        secret_key = False, +        cipher_key = False, +        ssl_on = False, +        origin = 'pubsub.pubnub.com', +        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 ) + +        """ +        super(PubnubCore, self).__init__( +            publish_key=publish_key, +            subscribe_key=subscribe_key, +            secret_key=secret_key, +            cipher_key=cipher_key, +            ssl_on=ssl_on, +            origin=origin, +            UUID=uuid +        )         + +        self.subscriptions = {} +        self.timetoken     = 0 +        self.version       = '3.4' +        self.accept_encoding = 'gzip' + + + +    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 diff --git a/common/PubnubCoreAsync.py b/common/PubnubCoreAsync.py new file mode 100644 index 0000000..9c53c6e --- /dev/null +++ b/common/PubnubCoreAsync.py @@ -0,0 +1,190 @@ +## 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 3.1 Real-time Push Cloud API +## ----------------------------------- +import sys +import json +import time +import hashlib +import urllib2 +import uuid +try: +    from hashlib import sha256 +    digestmod = sha256 +except ImportError: +    import Crypto.Hash.SHA256 as digestmod +    sha256 = digestmod.new +import hmac +from PubnubCrypto import PubnubCrypto +from PubnubBase import PubnubBase + +class PubnubCoreAsync(PubnubBase): + +    def start(self): pass  +    def stop(self):  pass +    def timeout( self, delay, callback ): +        pass + +    def __init__( +        self, +        publish_key, +        subscribe_key, +        secret_key = False, +        cipher_key = False, +        ssl_on = False, +        origin = 'pubsub.pubnub.com', +        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 required key to sign messages. +        #* @param boolean ssl required for 2048 bit encrypted messages. +        #* @param string origin PUBNUB Server Origin. +        #** + +        ## Initiat Class +        pubnub = Pubnub( 'PUBLISH-KEY', 'SUBSCRIBE-KEY', 'SECRET-KEY', False ) + +        """ +        super(PubnubCoreAsync, self).__init__( +            publish_key=publish_key, +            subscribe_key=subscribe_key, +            secret_key=secret_key, +            cipher_key=cipher_key, +            ssl_on=ssl_on, +            origin=origin, +            UUID=uuid +        )         + +        self.subscriptions = {} +        self.timetoken     = 0 +        self.version       = '3.4' +        self.accept_encoding = 'gzip' + +    def subscribe( self, args ) : +        """ +        #** +        #* Subscribe +        #* +        #* This is NON-BLOCKING. +        #* Listen for a message on a channel. +        #* +        #* @param array args with channel and message. +        #* @return false on fail, array on success. +        #** + +        ## Subscribe Example +        def receive(message) : +            print(message) +            return True + +        ## On Connect Callback +        def connected() : +            pubnub.publish({ +                'channel' : 'hello_world', +                'message' : { 'some_var' : 'text' } +            }) + +        ## Subscribe +        pubnub.subscribe({ +            'channel'  : 'hello_world', +            'connect'  : connected, +            'callback' : receive +        }) + +        """ +        ## Fail if missing channel +        if not 'channel' in args : +            return 'Missing Channel.' + +        ## Fail if missing callback +        if not 'callback' in args : +            return 'Missing Callback.' + +        ## Capture User Input +        channel   = str(args['channel']) +        callback  = args['callback'] +        connectcb = args['connect'] + +        if 'errorback' in args: +            errorback = args['errorback'] +        else: +            errorback = lambda x: x + +        ## New Channel? +        if not (channel in self.subscriptions) : +            self.subscriptions[channel] = { +                'first'     : False, +                'connected' : False, +            } + +        ## Ensure Single Connection +        if self.subscriptions[channel]['connected'] : +            return "Already Connected" + +        self.subscriptions[channel]['connected'] = 1 +        ## SUBSCRIPTION RECURSION  +        def _subscribe(): +            ## STOP CONNECTION? +            if not self.subscriptions[channel]['connected']: +                return +           +            def sub_callback(response): +                print response +                response = json.loads(response) +                ## STOP CONNECTION? +                if not self.subscriptions[channel]['connected']: +                    return + +                ## CONNECTED CALLBACK +                if not self.subscriptions[channel]['first'] : +                    self.subscriptions[channel]['first'] = True +                    connectcb() + +                ## PROBLEM? +                if not response: +                    def time_callback(_time): +                        if not _time: +                            self.timeout( 1, _subscribe ) +                            return errorback("Lost Network Connection") +                        else: +                            self.timeout( 1, _subscribe) + +                    ## ENSURE CONNECTED (Call Time Function) +                    return self.time({ 'callback' : time_callback }) + +                self.timetoken = response[1] +                _subscribe() + +                pc = PubnubCrypto() +                out = [] +                for message in response[0]: +                     callback(self.decrypt(message)) + +            ## CONNECT TO PUBNUB SUBSCRIBE SERVERS +            try: +                self._request( { "urlcomponents" : [ +                    'subscribe', +                    self.subscribe_key, +                    channel, +                    '0', +                    str(self.timetoken) +                ], "urlparams" : {"uuid":self.uuid} }, sub_callback ) +            except : +                self.timeout( 1, _subscribe) +                return + +        ## BEGIN SUBSCRIPTION (LISTEN FOR MESSAGES) +        _subscribe() diff --git a/common/PubnubCrypto.py b/common/PubnubCrypto.py new file mode 100644 index 0000000..b7a57a1 --- /dev/null +++ b/common/PubnubCrypto.py @@ -0,0 +1,93 @@ +## 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 3.1 Real-time Push Cloud API +## ----------------------------------- + +from Crypto.Cipher import AES +from Crypto.Hash import MD5 +from base64 import encodestring, decodestring  +import hashlib +import hmac + +class PubnubCrypto() : +    """ +    #** +    #* PubnubCrypto +    #* +    #** + +    ## Initiate Class +    pc = PubnubCrypto + +    """ +    +    def pad( self, msg, block_size=16 ): +        """ +        #** +        #* pad +        #* +        #* pad the text to be encrypted +        #* appends a padding character to the end of the String +        #* until the string has block_size length +        #* @return msg with padding. +        #** +        """ +        padding = block_size - (len(msg) % block_size) +        return msg + chr(padding)*padding +        +    def depad( self, msg ): +        """ +        #** +        #* depad +        #* +        #* depad the decryptet message" +        #* @return msg without padding. +        #** +        """ +        return msg[0:-ord(msg[-1])] + +    def getSecret( self, key ): +        """ +        #** +        #* getSecret +        #* +        #* hases the key to MD5 +        #* @return key in MD5 format +        #** +        """ +        return hashlib.sha256(key).hexdigest() + +    def encrypt( self, key, msg ): +        """ +        #** +        #* encrypt +        #* +        #* encrypts the message +        #* @return message in encrypted format +        #** +        """ +        secret = self.getSecret(key) +        Initial16bytes='0123456789012345' +        cipher = AES.new(secret[0:32],AES.MODE_CBC,Initial16bytes) +        enc = encodestring(cipher.encrypt(self.pad(msg))) +        return enc +    def decrypt( self, key, msg ): +        """ +        #** +        #* decrypt +        #* +        #* decrypts the message +        #* @return message in decryped format +        #** +        """ +        secret = self.getSecret(key) +        Initial16bytes='0123456789012345' +        cipher = AES.new(secret[0:32],AES.MODE_CBC,Initial16bytes) +        return self.depad((cipher.decrypt(decodestring(msg)))) +     | 
