o 6¬Wc‚oã@s<ddlZddlZddlZddlmZmZddlZddlmZm Z ddl mZmZm Z ddlmZmZmZmZddlmZddlmZdd lmZmZmZddlZd d„Zedd „ƒZedd „ƒZedd „ƒZedd „ƒZedd „ƒZ edd „ƒZ!e ƒZ"ddlm#Z#eeedœZ$Gdd„de%ƒZ&Gdd„deƒZ'ddd„Z(dS)éN)ÚwrapsÚpartial)Ú LocalProxyÚ LocalStack)Ú BaseLoaderÚChoiceLoaderÚTemplateNotFound)Úcurrent_appÚjsonÚrequestÚ_app_ctx_stacké)Úverifier)Úlogger)Úto_dateÚto_timeÚto_timedeltacCsZttdƒr ttdƒSttdƒr)ttdƒ}|D]}t||dƒr(t||dƒSqdSdS)z¢Find our instance of Ask, navigating Local's and possible blueprints. Note: This only supports returning a reference to the first instance of Ask found. ÚaskÚ blueprintsN)Úhasattrr Úgetattr)rZblueprint_name©rú0D:\Flask\env\Lib\site-packages\flask_ask/core.pyÚfind_asks ÿýrcCótƒjS©N)rrrrrrÚórcCrr)rÚsessionrrrrr rcCrr)rÚversionrrrrr!rcCrr)rÚcontextrrrrr"rcCrr)rÚconvert_errorsrrrrr#rcCrr)rÚcurrent_streamrrrrr$r)Úmodels)ÚdateÚtimeÚ timedeltac@s´eZdZdZdFdd„Zdd„Zdd„Zed d „ƒZedd„ƒZ ed d„ƒZ dd„Zdd„Zdd„Z iiifdd„Zddiiifdd„Zddiiifdd„Zddiiifdd„Zddiiifdd „Ziiifd!d"„Zed#d$„ƒZejd%d$„ƒZed&d'„ƒZejd(d'„ƒZed)d*„ƒZejd+d*„ƒZed,d-„ƒZejd.d-„ƒZed/d0„ƒZejd1d0„ƒZed2d3„ƒZejd4d3„ƒZdGd6d7„Zd8d9„Zd:d;„Zdd?„Zd@dA„Z dBdC„Z!dDdE„Z"dS)HÚAskaÜThe Ask object provides the central interface for interacting with the Alexa service. Ask object maps Alexa Requests to flask view functions and handles Alexa sessions. The constructor is passed a Flask App instance, and URL endpoint. The Flask instance allows the convienient API of endpoints and their view functions, so that Alexa requests may be mapped with syntax similar to a typical Flask server. Route provides the entry point for the skill, and must be provided if an app is given. Keyword Arguments: app {Flask object} -- App instance - created with Flask(__name__) (default: {None}) route {str} -- entry point to which initial Alexa Requests are forwarded (default: {None}) NcCsx||_||_i|_i|_i|_i|_d|_d|_d|_i|_ i|_ i|_|dur/| |¡dS|dur:| |¡dSdSr)ÚappÚ_routeÚ_intent_view_funcsÚ_intent_convertsÚ_intent_defaultsÚ_intent_mappingsÚ_launch_view_funcÚ_session_ended_view_funcÚ_on_session_started_callbackZ_player_request_view_funcsZ_player_mappingsZ_player_convertsÚinit_appÚinit_blueprint)Úselfr(ZrouteÚ blueprintrrrÚ__init__;s"ÿzAsk.__init__cCsF|jdur tdƒ‚||_|j|j|jdgdt|jt|ƒgƒ|_dS)a3Initializes Ask app by setting configuration variables, loading templates, and maps Ask route to a flask view. The Ask instance is given the following configuration variables by calling on Flask's configuration: `ASK_APPLICATION_ID`: Turn on application ID verification by setting this variable to an application ID or a list of allowed application IDs. By default, application ID verification is disabled and a warning is logged. This variable should be set in production to ensure requests are being sent by the applications you specify. Default: None `ASK_VERIFY_REQUESTS`: Enables or disables Alexa request verification, which ensures requests sent to your skill are from Amazon's Alexa service. This setting should not be disabled in production. It is useful for mocking JSON requests in automated tests. Default: True ASK_VERIFY_TIMESTAMP_DEBUG: Turn on request timestamp verification while debugging by setting this to True. Timestamp verification helps mitigate against replay attacks. It relies on the system clock being synchronized with an NTP server. This setting should not be enabled in production. Default: False Nz1route is a required argument when app is not NoneÚPOST©Ú view_funcÚmethods)r)Ú TypeErrorrÚadd_url_ruleÚ_flask_view_funcrÚjinja_loaderÚ YamlLoader)r3r(rrrr1Ns zAsk.init_appcCs@|jdur tdƒ‚||_|jd|jdgdtt|ƒgƒ|_dS)z¾Initialize a Flask Blueprint, similar to init_app, but without the access to the application config. :param blueprint: Flask Blueprint instance :return: None Nz*route cannot be set when using blueprints!Úr6r7)r)r:rr;r<rr>r=)r3r4rrrr2qs zAsk.init_blueprintcCótj dd¡S)NZASK_VERIFY_REQUESTST©r ÚconfigÚget©r3rrrÚask_verify_requests„ózAsk.ask_verify_requestscCr@)NZASK_VERIFY_TIMESTAMP_DEBUGFrArDrrrÚask_verify_timestamp_debugˆrFzAsk.ask_verify_timestamp_debugcCstj dd¡S)NZASK_APPLICATION_IDrArDrrrÚask_application_idŒrFzAsk.ask_application_idcCs ||_dS)a¥Decorator to call wrapped function upon starting a session. @ask.on_session_started def new_session(): log.info('new session started') Because both launch and intent requests may begin a session, this decorator is used call a function regardless of how the session began. Arguments: f {function} -- function to be called when session is started. N)r0©r3ÚfrrrÚon_session_starteds zAsk.on_session_startedcó|ˆ_t|ƒ‡fdd„ƒ}|S)aDecorator maps a view function as the endpoint for an Alexa LaunchRequest and starts the skill. @ask.launch def launched(): return question('Welcome to Foo') The wrapped function is registered as the launch view function and renders the response for requests to the Launch URL. A request to the launch URL is verified with the Alexa server before the payload is passed to the view function. Arguments: f {function} -- Launch view function cóˆj|i|¤ŽdSr©r<©ÚargsÚkwrDrrÚwrapper°ózAsk.launch..wrapper)r.r©r3rJrRrrDrÚlaunchŸsz Ask.launchcrL)ašDecorator routes Alexa SessionEndedRequest to the wrapped view function to end the skill. @ask.session_ended def session_ended(): return "", 200 The wrapped function is registered as the session_ended view function and renders the response for requests to the end of the session. Arguments: f {function} -- session_ended view function crMrrNrOrDrrrRÄrSz"Ask.session_ended..wrapper)r/rrTrrDrÚ session_endedµs zAsk.session_endedcs‡‡‡‡‡fdd„}|S)aDecorator routes an Alexa IntentRequest and provides the slot parameters to the wrapped function. Functions decorated as an intent are registered as the view function for the Intent's URL, and provide the backend responses to give your Skill its functionality. @ask.intent('WeatherIntent', mapping={'city': 'City'}) def weather(city): return statement('I predict great weather for {}'.format(city)) Arguments: intent_name {str} -- Name of the intent request to be mapped to the decorated function Keyword Arguments: mapping {dict} -- Maps parameters to intent slots of a different name default: {} convert {dict} -- Converts slot values to data types before assignment to parameters default: {} default {dict} -- Provides default values for Intent slots if Alexa reuqest returns no corresponding slot, or a slot with an empty value default: {} cs@|ˆjˆ<ˆˆjˆ<ˆˆjˆ<ˆˆjˆ<t|ƒ‡fdd„ƒ}|S)NcrMrrNrOrDrrrRçrSz.Ask.intent..decorator..wrapper©r*r-r+r,r©rJrR©ÚconvertÚdefaultÚintent_nameÚmappingr3rrÚ decoratoráó zAsk.intent..decoratorr)r3r\r]rZr[r^rrYrÚintentÉs z Ask.intentÚoffsetZoffsetInMillisecondscó‡‡‡‡fdd„}|S)a3Decorator routes an AudioPlayer.PlaybackStarted Request to the wrapped function. Request sent when Alexa begins playing the audio stream previously sent in a Play directive. This lets your skill verify that playback began successfully. This request is also sent when Alexa resumes playback after pausing it for a voice request. The wrapped view function may accept parameters from the AudioPlayer Request. In addition to locale, requestId, timestamp, and type AudioPlayer Requests include: offsetInMilliseconds - Position in stream when request was sent. Not end of stream, often few ms after Play Directive offset. This parameter is automatically mapped to 'offset' by default token - token of the stream that is nearly finished. @ask.on_playback_started() def on_playback_start(token, offset): logger.info('stream has token {}'.format(token)) logger.info('Current position within the stream is {} ms'.format(offset)) có@|ˆjd<ˆˆjd<ˆˆjd<ˆˆjd<t|ƒ‡fdd„ƒ}|S)NzAudioPlayer.PlaybackStartedcrMrrN©rPÚkwargsrDrrrRrSz;Ask.on_playback_started..decorator..wrapperrWrX©rZr[r]r3rrr^r_z*Ask.on_playback_started..decoratorr©r3r]rZr[r^rrfrÚon_playback_startedís zAsk.on_playback_startedcrb)a¥Decorator routes an AudioPlayer.PlaybackFinished Request to the wrapped function. This type of request is sent when the stream Alexa is playing comes to an end on its own. Note: If your skill explicitly stops the playback with the Stop directive, Alexa sends PlaybackStopped instead of PlaybackFinished. The wrapped view function may accept parameters from the AudioPlayer Request. In addition to locale, requestId, timestamp, and type AudioPlayer Requests include: offsetInMilliseconds - Position in stream when request was sent. Not end of stream, often few ms after Play Directive offset. This parameter is automatically mapped to 'offset' by default. token - token of the stream that is nearly finished. Audioplayer Requests do not include the stream URL, it must be accessed from current_stream.url crc)NzAudioPlayer.PlaybackFinishedcrMrrNrdrDrrrR'rSz.decorator..wrapperrWrXrfrrr^!r_z+Ask.on_playback_finished..decoratorrrgrrfrÚon_playback_finisheds zAsk.on_playback_finishedcrb)a)Decorator routes an AudioPlayer.PlaybackStopped Request to the wrapped function. Sent when Alexa stops playing an audio stream in response to one of the following: -AudioPlayer.Stop -AudioPlayer.Play with a playBehavior of REPLACE_ALL. -AudioPlayer.ClearQueue with a clearBehavior of CLEAR_ALL. This request is also sent if the user makes a voice request to Alexa, since this temporarily pauses the playback. In this case, the playback begins automatically once the voice interaction is complete. Note: If playback stops because the audio stream comes to an end on its own, Alexa sends PlaybackFinished instead of PlaybackStopped. The wrapped view function may accept parameters from the AudioPlayer Request. In addition to locale, requestId, timestamp, and type AudioPlayer Requests include: offsetInMilliseconds - Position in stream when request was sent. Not end of stream, often few ms after Play Directive offset. This parameter is automatically mapped to 'offset' by default. token - token of the stream that is nearly finished. Audioplayer Requests do not include the stream URL, it must be accessed from current_stream.url crc)NzAudioPlayer.PlaybackStoppedcrMrrNrdrDrrrRMrSz;Ask.on_playback_stopped..decorator..wrapperrWrXrfrrr^Gr_z*Ask.on_playback_stopped..decoratorrrgrrfrÚon_playback_stopped-s zAsk.on_playback_stoppedcrb)a‘Decorator routes an AudioPlayer.PlaybackNearlyFinished Request to the wrapped function. This AudioPlayer Request sent when the device is ready to receive a new stream. To progress through a playlist, respond to this request with an enqueue or play_next audio response. **Note** that this request is sent when Alexa is ready to receive a new stream to enqueue, and not necessarily when the stream's offset is near the end. The request may be sent by Alexa immediately after your skill sends a Play Directive. The wrapped view function may accept parameters from the AudioPlayer Request. In addition to locale, requestId, timestamp, and type This AudioPlayer Request includes: AudioPlayer Requests include: offsetInMilliseconds - Position in stream when request was sent. Not end of stream, often few ms after Play Directive offset. This parameter is automatically mapped to 'offset' by default. token - token of the stream that is nearly finished. Audioplayer Requests do not include the stream URL, and must be accessed from current_stream Example usage: @ask.on_playback_nearly_finished() def play_next_stream(): audio().enqueue(my_next_song) # offsetInMilliseconds is mapped to offset by default for convenience @ask.on_playback_nearly_finished() def show_request_feedback(offset, token): logging.info('Nearly Finished') logging.info('Stream at {} ms when Playback Request sent'.format(offset)) logging.info('Stream holds the token {}'.format(token)) logging.info('Streaming from {}'.format(current_stream.url)) # example of changing the default parameter mapping @ask.on_playback_nearly_finished(mapping={'pos': 'offsetInMilliseconds', 'stream_token': 'token'}) def show_request_feedback(pos, stream_token): _infodump('Nearly Finished') _infodump('Stream at {} ms when Playback Request sent'.format(pos)) _infodump('Stream holds the token {}'.format(stream_token)) crc)Nz"AudioPlayer.PlaybackNearlyFinishedcrMrrNrdrDrrrR„rSzCAsk.on_playback_nearly_finished..decorator..wrapperrWrXrfrrr^~r_z2Ask.on_playback_nearly_finished..decoratorrrgrrfrÚon_playback_nearly_finishedSs+ zAsk.on_playback_nearly_finishedcrb)aÆDecorator routes an AudioPlayer.PlaybackFailed Request to the wrapped function. This AudioPlayer Request sent when Alexa encounters an error when attempting to play a stream. The wrapped view function may accept parameters from the AudioPlayer Request. In addition to locale, requestId, timestamp, and type PlayBackFailed Requests include: error - Contains error info under parameters type and message token - represents the stream that failed to play. currentPlaybackState - Details about the playback activity occurring at the time of the error Contains the following parameters: token - represents the audio stream currently playing when the error occurred. Note that this may be different from the value of the request.token property. offsetInMilliseconds - Position in stream when request was sent. Not end of stream, often few ms after Play Directive offset. This parameter is automatically mapped to 'offset' by default. playerActivity - player state when the error occurred crc)NzAudioPlayer.PlaybackFailedcrMrrNrdrDrrrR©rSz:Ask.on_playback_failed..decorator..wrapperrWrXrfrrr^£r_z)Ask.on_playback_failed..decoratorrrgrrfrÚon_playback_failedŠs zAsk.on_playback_failedcCóttjddƒS)NÚ_ask_request©rrÚtoprDrrrr¯rFzAsk.requestcCó|tj_dSr)rrprn©r3Úvaluerrrr³ócCóttjdt ¡ƒS)NÚ_ask_session©rrrpr#Ú_FieldrDrrrr·ózAsk.sessioncCrqr)rrprvrrrrrr»rtcCrm)NÚ_ask_versionrorDrrrr¿rFzAsk.versioncCrqr)rrprzrrrrrrÃrtcCrm)NÚ_ask_contextrorDrrrr ÇrFzAsk.contextcCrqr)rrpr{rrrrrr ËrtcCrm)NÚ_ask_convert_errorsrorDrrrr!ÏrFzAsk.convert_errorscCrqr)rrpr|rrrrrr!ÓrtcCru)NÚ_ask_current_streamrwrDrrrr"×ryzAsk.current_streamcCrqr)rrpr}rrrrrr"ÛrtTc CsÀtj}t |¡}|r^tjd}tjd}t |¡}t |||¡t |dd¡}t jr/|jr4t |¡z |ddd}WntyQ|dd dd}Ynw|jdur^t ||j¡|S) NZSignaturecertchainurlÚ SignaturerÚ timestamprZapplicationZ applicationIdr ÚSystem)Ú flask_requestÚdatar ÚloadsÚheadersrZload_certificateZverify_signatureÚ aniso8601Zparse_datetimer ÚdebugrGZverify_timestampÚKeyErrorrHZverify_application_id) r3ÚverifyZraw_bodyZalexa_request_payloadZcert_urlÚ signatureÚcertrZapplication_idrrrÚ_alexa_requestßs0 ÿÿÿÿ zAsk._alexa_requestcCsXt ¡}|j |jj¡|j | ¡¡| ¡}|dkr"|j |¡||_ttjƒdSr)r#rxÚ__dict__Úupdater"Ú_from_directiveÚ _from_contextÚ_dbgdump)r3Zfresh_streamZcontext_inforrrÚ_update_streamúszAsk._update_streamcCst|jdiƒS)NÚAudioPlayer)rr rDrrrrszAsk._from_contextcCs,tj}|r|jjrd|jjjvriS|SiS)NZPauseIntent)Ú_stream_bufferrprr`Úname)r3Úfrom_bufferrrrrŽ szAsk._from_directivecOsH|j|jd}t|ƒt |¡}|j|_|j|_t|dt ¡ƒ|_t|d|j ƒ|_ |j s1t ¡|_ |j j s;t ¡|j _ | ¡z|j jrM|j durM| ¡Wn tyWYnwd}|jj}|dkrj|jrj| ¡}n(|dkrv|jrv| ¡}n|dkr†|jr†| |jj¡ƒ}nd|vr’| |jj¡ƒ}|dur¢t|tjƒr | ¡S|SdS) N)rˆr rZ LaunchRequestZSessionEndedRequestZ IntentRequestr’)r?i)r‹rErr#rxrrrr rÚ attributesr‘Únewr0ÚAttributeErrorÚtyper.r/r*Ú_map_intent_to_view_funcr`Ú_map_player_request_to_funcÚ isinstanceZ _ResponseZrender_response)r3rPreZask_payloadÚrequest_bodyÚresultZrequest_typerrrr<sD €ÿ zAsk._flask_view_funccCs:|j|j}t |¡}|j}| |j|¡}t|g|¢RŽS)z7Provides appropiate parameters to the intent functions.)r*r”ÚinspectÚ getargspecrPÚ_map_params_to_view_argsr)r3r`r8ÚargspecÚ arg_namesÚ arg_valuesrrrrš<s zAsk._map_intent_to_view_funccCs>|j |dd„¡}t |¡}|j}| ||¡}t|g|¢RŽS)z=Provides appropriate parameters to the on_playback functions.cSsdSrrrrrrrHsz1Ask._map_player_request_to_func..)r*rCrŸr rPr¡r)r3Zplayer_request_typer8r¢r£r¤rrrr›Es zAsk._map_player_request_to_funccCsng}|j |¡}|j |¡}|j |¡}i}i}t|jddƒ} | dur@| jdur?| j ¡D]} t| j| ƒ}t|ddƒ||j<q-n|jD]}t|j|dƒ||<qC|D]`} | | | ¡}| |¡}|dusf|dkrz| |vry|| }t |t jƒrw|ƒ}|}n2| |vr¬|| }|tvr|}t|}n|}z||ƒ}Wnt y«}z ||| <WYd}~nd}~ww| |¡qQ||_|S)Nr`rsr?)r+rCr,r-rrÚslotsÚkeysr”rœÚcollectionsÚCallableÚ_convertersÚ ExceptionÚappendr!)r3Z view_namer£r¤rZr[r]r!Zrequest_datar`Zslot_keyZslot_objectÚ param_nameZarg_nameZ param_or_slotÚ arg_valueÚ default_valueZshorthand_or_functionZ shorthandZconvert_funcÚerrrr¡PsP € € €ÿzAsk._map_params_to_view_args©NNN)T)#Ú__name__Ú __module__Ú__qualname__Ú__doc__r5r1r2ÚpropertyrErGrHrKrUrVr`rhrirjrkrlrÚsetterrrr r!r"r‹r‘rrŽr<ršr›r¡rrrrr',sh # $!&7% + r'c@s&eZdZd dd„Zdd„Zdd„ZdS) r>útemplates.yamlcCs&|jtjj||_i|_| ¡dSr)Ú root_pathÚosÚpathÚsepr]Ú_reload_mapping)r3r(rºrrrr5€szYamlLoader.__init__cCsbtj |j¡r/tj |j¡|_t|jƒ}t | ¡¡|_ WdƒdS1s(wYdSdSr) r¹rºÚisfileÚgetmtimeÚ last_mtimeÚopenÚyamlZ safe_loadÚreadr]rIrrrr¼…s"ÿþzYamlLoader._reload_mappingcs`tj ˆj¡s dSˆjtj ˆj¡krˆ ¡ˆˆjvr,ˆjˆ‰ˆd‡‡‡fdd„fStˆƒS)Nr°csˆˆj ˆ¡kSr)r]rCr©r3ÚsourceÚtemplaterrr’sz'YamlLoader.get_source..)r¹rºr½r¿r¾r¼r]r)r3ÚenvironmentrÅrrÃrÚ get_source‹s zYamlLoader.get_sourceN)r·)r±r²r³r5r¼rÇrrrrr>~s r>écCs tj||||d}t |¡dS)N)Úindentr[Úcls)r Údumpsrr†)ÚobjrÉr[rÊÚmsgrrrr–sr)rÈNN))r¹rÁrŸÚ functoolsrrr…Zwerkzeug.localrrZjinja2rrrZflaskr r rrrr?rrrZrrrr§rrrr r!r"r“r#r©Úobjectr'r>rrrrrÚs:V