U M8cs@sddlZddlZddlZddlZddlZddlZddlmZmZddl m Z ddl m Z m Z mZddlmZmZddlmZGdddZGd d d Zd d Zdd dZGdddZddZdddZddZdddZddZdS)N)create_request_objectprepare_request_dict) OrderedDict)UnknownClientMethodErrorUnknownSignatureVersionError UnsupportedSignatureVersionError) ArnParserdatetime2timestamp) fix_s3_hostc@sreZdZdZdddZeddZeddZed d Zdd d Z dddZ ddZ dddZ e Z dddZdS) RequestSignera0 An object to sign requests before they go out over the wire using one of the authentication mechanisms defined in ``auth.py``. This class fires two events scoped to a service and operation name: * choose-signer: Allows overriding the auth signer name. * before-sign: Allows mutating the request before signing. Together these events allow for customization of the request signing pipeline, including overrides, request path manipulation, and disabling signing per operation. :type service_id: botocore.model.ServiceId :param service_id: The service id for the service, e.g. ``S3`` :type region_name: string :param region_name: Name of the service region, e.g. ``us-east-1`` :type signing_name: string :param signing_name: Service signing name. This is usually the same as the service name, but can differ. E.g. ``emr`` vs. ``elasticmapreduce``. :type signature_version: string :param signature_version: Signature name like ``v4``. :type credentials: :py:class:`~botocore.credentials.Credentials` :param credentials: User credentials with which to sign requests. :type event_emitter: :py:class:`~botocore.hooks.BaseEventHooks` :param event_emitter: Extension mechanism to fire events. NcCs4||_||_||_||_||_||_t||_dSN) _region_name _signing_name_signature_version _credentials _auth_token _service_idweakrefproxy_event_emitter)selfZ service_id region_name signing_namesignature_version credentialsZ event_emitterZ auth_tokenr4/tmp/pip-unpacked-wheel-ozje0y8b/botocore/signers.py__init__Ds zRequestSigner.__init__cCs|jSr )r rrrrrXszRequestSigner.region_namecCs|jSr )rrrrrr\szRequestSigner.signature_versioncCs|jSr )rrrrrr`szRequestSigner.signing_namecKs |||Sr )sign)roperation_namerequestkwargsrrrhandlerdszRequestSigner.handlerstandardc Cs|}|dkr|j}|dkr |j}||||j}|jjd|j||||j|||d|t j kr|||d} |dk r|| d<|j di} |s| dr| d| d<| d r| d | d <z|j f| } Wn<t k r } z|d krt|d n| W5d} ~ XYnX| |dS) a<Sign a request before it goes out over the wire. :type operation_name: string :param operation_name: The name of the current operation, e.g. ``ListBuckets``. :type request: AWSRequest :param request: The request object to be sent over the wire. :type region_name: str :param region_name: The region to sign the request for. :type signing_type: str :param signing_type: The type of signing to perform. This can be one of three possible values: * 'standard' - This should be used for most requests. * 'presign-url' - This should be used when pre-signing a request. * 'presign-post' - This should be used when pre-signing an S3 post. :type expires_in: int :param expires_in: The number of seconds the presigned url is valid for. This parameter is only valid for signing type 'presign-url'. :type signing_name: str :param signing_name: The name to use for the service when signing. Nzbefore-sign.{}.{})r!rrrrequest_signerr )rrrexpiressigningregionrrr$r)r r_choose_signercontextremitformatr hyphenizebotocoreUNSIGNEDgetget_auth_instancerrZadd_auth) rr r!r signing_type expires_inrZexplicit_region_namerr"Zsigning_contextautherrrrksV#    zRequestSigner.signc Csddd}||d}|dp$|j}|di}|d|j}|d|j} |tjk rj||sj||7}|jjd |j ||| ||d \} } | d k r| }|tjk r||s||7}|S) ai Allow setting the signature version via the choose-signer event. A value of `botocore.UNSIGNED` means no signing will be performed. :param operation_name: The operation to sign. :param signing_type: The type of signing that the signer is to be used for. :return: The signature version to sign with. z -presign-postz-query) presign-post presign-urlZ auth_typer'rr(zchoose-signer.{}.{})rrrr+N) r1rrr r/r0endswithrZemit_until_responser-rr.) rr r3r+Zsigning_type_suffix_mapsuffixrr'rrr#responserrrr*s>    zRequestSigner._choose_signerc Ks|dkr|j}tjj|}|dkr.t|d|jdkr\d}|jdk rP|j}||}|Sd}|j dk rt|j }||d<|j r|j dkrtj ||d<||d<|f|}|S)a Get an auth instance which can be used to sign a request using the given signature version. :type signing_name: string :param signing_name: Service signing name. This is usually the same as the service name, but can differ. E.g. ``emr`` vs. ``elasticmapreduce``. :type region_name: string :param region_name: Name of the service region, e.g. ``us-east-1`` :type signature_version: string :param signature_version: Signature name like ``v4``. :rtype: :py:class:`~botocore.auth.BaseSigner` :return: Auth instance to sign a request. Nr)TrrZ service_name)rr/r5ZAUTH_TYPE_MAPSr1rZREQUIRES_TOKENrZget_frozen_tokenrZget_frozen_credentialsZREQUIRES_REGIONr exceptionsZ NoRegionError) rrrrr"clsZ frozen_tokenr5Zfrozen_credentialsrrrr2s0        zRequestSigner.get_auth_instancecCs*t|}||||d||||jS)aGenerates a presigned url :type request_dict: dict :param request_dict: The prepared request dictionary returned by ``botocore.awsrequest.prepare_request_dict()`` :type operation_name: str :param operation_name: The operation being signed. :type expires_in: int :param expires_in: The number of seconds the presigned url is valid for. By default it expires in an hour (3600 seconds) :type region_name: string :param region_name: The region name to sign the presigned url. :type signing_name: str :param signing_name: The name to use for the service when signing. :returns: The presigned url r8)rrprepareurl)r request_dictr r4rrr!rrrgenerate_presigned_url)s z$RequestSigner.generate_presigned_url)N)NN)Nr$NN)N)r?NN)__name__ __module__ __qualname____doc__rpropertyrrrr#rr*r2Zget_authrCrrrrr !s.*      T3 6r c@s<eZdZdZddZd ddZddZdd d Zd d ZdS)CloudFrontSigneraA signer to create a signed CloudFront URL. First you create a cloudfront signer based on a normalized RSA signer:: import rsa def rsa_signer(message): private_key = open('private_key.pem', 'r').read() return rsa.sign( message, rsa.PrivateKey.load_pkcs1(private_key.encode('utf8')), 'SHA-1') # CloudFront requires SHA-1 hash cf_signer = CloudFrontSigner(key_id, rsa_signer) To sign with a canned policy:: signed_url = cf_signer.generate_signed_url( url, date_less_than=datetime(2015, 12, 1)) To sign with a custom policy:: signed_url = cf_signer.generate_signed_url(url, policy=my_policy) cCs||_||_dS)aCreate a CloudFrontSigner. :type key_id: str :param key_id: The CloudFront Key Pair ID :type rsa_signer: callable :param rsa_signer: An RSA signer. Its only input parameter will be the message to be signed, and its output will be the signed content as a binary string. The hash algorithm needed by CloudFront is SHA-1. N)key_id rsa_signer)rrJrKrrrrls zCloudFrontSigner.__init__Nc Cs|dk o|dk }|dko|dk}|s(|r4d}t||dk rH|||}t|tr\|d}|dk rxdtt|g}nd||dg}| |}| d||dd|j g| ||S)aCreates a signed CloudFront URL based on given parameters. :type url: str :param url: The URL of the protected object :type date_less_than: datetime :param date_less_than: The URL will expire after that date and time :type policy: str :param policy: The custom policy, possibly built by self.build_policy() :rtype: str :return: The signed URL. Nz=Need to provide either date_less_than or policy, but not bothutf8z Expires=%sz Policy=%sz Signature=z Key-Pair-Id=) ValueError build_policy isinstancestrencodeintr _url_b64encodedecoderKextendrJ _build_url) rrAdate_less_thanpolicyZboth_args_suppliedZneither_arg_suppliedr6params signaturerrrrC{s&     z'CloudFrontSigner.generate_presigned_urlcCs"d|kr dnd}||d|S)N?&)join)rbase_urlZ extra_params separatorrrrrVszCloudFrontSigner._build_urlc Cstt|}tdd|ii}|r s<  5 6R F