o ~j@cvq@sddlZddlZddlZddlZddlZddlZddlmZmZddl m Z ddl m Z m Z mZddlmZddlmZGdddZGd d d Zd d Zdd dZGdddZddZ dddZddZ dddZddZdS)N)create_request_objectprepare_request_dict) OrderedDict)UnknownClientMethodErrorUnknownSignatureVersionError UnsupportedSignatureVersionError)datetime2timestamp) fix_s3_hostc@seZdZdZ dddZeddZeddZed 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_tokenr4usr/lib/python3.10/site-packages/botocore/signers.py__init__Ds zRequestSigner.__init__cC|jSr )r rrrrrXzRequestSigner.region_namecCrr )rrrrrr\rzRequestSigner.signature_versioncCrr )r rrrrr`rzRequestSigner.signing_namecKs |||Sr )sign)roperation_namerequestkwargsrrrhandlerds zRequestSigner.handlerstandardc Cs|}|dur |j}|dur|j}||||j}|jjd|j||||j|||d|t j kr|||d} |dur@|| d<|j di} |sT| drT| d| d<| d r_| d | d <z |j d i| } Wnt y} z |d krzt|d | d} ~ ww| |dSdS) 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!)rrrZexpiresZsigningregionrrr%rr)r r _choose_signercontextremitformatr hyphenizebotocoreUNSIGNEDgetget_auth_instancerrZadd_auth) rr!r"r signing_type expires_inrZexplicit_region_namerr#Zsigning_contextautherrrr ksV#     zRequestSigner.signc Csddd}||d}|j}|tjur||s||7}|jjd|j ||j |j ||d\}}|durF|}|tjurF||sF||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-urlzchoose-signer.{}.{})rrrr*N) r0rr.r/endswithrZemit_until_responser,rr-r r ) rr!r2r*Zsigning_type_suffix_mapsuffixrr$responserrrr)s2       zRequestSigner._choose_signerc Ks|dur|j}tjj|}|durt|d|jdur.d}|jdur(|j}||}|Sd}|j dur:|j }||d<|j rS|j durKtj ||d<||d<|di|}|S)a Get an auth instance which can be used to sign a request using the given signature version. :type signing_name: string :param signing_name: Service signing name. This is usually the same as the service name, but can differ. E.g. ``emr`` vs. ``elasticmapreduce``. :type region_name: string :param region_name: Name of the service region, e.g. ``us-east-1`` :type signature_version: string :param signature_version: Signature name like ``v4``. :rtype: :py:class:`~botocore.auth.BaseSigner` :return: Auth instance to sign a request. Nr(TrrZ service_namer)rr.r4ZAUTH_TYPE_MAPSr0rZREQUIRES_TOKENrZget_frozen_tokenrZget_frozen_credentialsZREQUIRES_REGIONr exceptionsZ NoRegionError) rrrrr#clsZ frozen_tokenr4Zfrozen_credentialsrrrr1s0       zRequestSigner.get_auth_instancecCs*t|}||||d||||jS)aGenerates a presigned url :type request_dict: dict :param request_dict: The prepared request dictionary returned by ``botocore.awsrequest.prepare_request_dict()`` :type operation_name: str :param operation_name: The operation being signed. :type expires_in: int :param expires_in: The number of seconds the presigned url is valid for. By default it expires in an hour (3600 seconds) :type region_name: string :param region_name: The region name to sign the presigned url. :type signing_name: str :param signing_name: The name to use for the service when signing. :returns: The presigned url r7)rr Zprepareurl)r request_dictr!r3rrr"rrrgenerate_presigned_url$s z$RequestSigner.generate_presigned_urlr NN)Nr%NN)r>NN)__name__ __module__ __qualname____doc__rpropertyrrrr$r r)r1Zget_authrArrrrr !s0*       T. 6r c@s>eZdZdZddZd ddZddZ d d 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)rrIrJrrrrgs zCloudFrontSigner.__init__Nc Cs|duo|du}|duo|du}|s|rd}t||dur$|||}t|tr.|d}|durc Cs|duri}|dur g}i}tj}|tj|d}|tjj|d<g|d<|D] } |d| q*t|} || j d<|| j d<|j d| |d| j |d S) aGenerates the url and the form fields used for a presigned s3 post :type request_dict: dict :param request_dict: The prepared request dictionary returned by ``botocore.awsrequest.prepare_request_dict()`` :type fields: dict :param fields: A dictionary of prefilled form fields to build on top of. :type conditions: list :param conditions: A list of conditions to include in the policy. Each element can be either a list or a structure. For example: [ {"acl": "public-read"}, {"bucket": "mybucket"}, ["starts-with", "$key", "mykey"] ] :type expires_in: int :param expires_in: The number of seconds the presigned post is valid for. :type region_name: string :param region_name: The region name to sign the presigned post to. :rtype: dict :returns: A dictionary with two elements: ``url`` and ``fields``. Url is the url to post to. Fields is a dictionary filled with the form fields and respective values to use when submitting the post. For example: {'url': 'https://mybucket.s3.amazonaws.com 'fields': {'acl': 'public-read', 'key': 'mykey', 'signature': 'mysignature', 'policy': 'mybase64 encoded policy'} } N)secondsZ expiration conditionszs3-presign-post-fieldszs3-presign-post-policyZ PutObjectr6)r?fields) datetimeutcnow timedeltastrftimer.r4ZISO8601appendrr*r|r r?) rr@rrr3rrWZ datetime_nowZ expire_datergr"rrrgenerate_presigned_posts$/    z'S3PostPresigner.generate_presigned_post)NNr>N)rCrDrErrrrrrrsrcKrr)NrA)rArtrrradd_generate_presigned_urlarvrr>cCs|}|}|dur i}|}|}dt|d} |j} |j} z|j|} Wn ty.t|dw|jj| } | || | }| || }|durK||d<t ||jj | d| j ||| dS)axGenerate a presigned url given a client, its method, and arguments :type ClientMethod: string :param ClientMethod: The client method to presign for :type Params: dict :param Params: The parameters normally passed to ``ClientMethod``. :type ExpiresIn: int :param ExpiresIn: The number of seconds the presigned url is valid for. By default it expires in an hour (3600 seconds) :type HttpMethod: string :param HttpMethod: The http method to use on the generated url. By default, the http method is whatever is used in the method's model. :returns: The presigned url NTZis_presign_requestZuse_global_endpoint) method_namerzrr*)r@r3r!)_should_use_global_endpointr| _serializerZ_PY_TO_OP_NAMEKeyErrorrr{ service_modeloperation_modelZ_emit_api_paramsserialize_to_requestrrrA)rZ ClientMethodZParams ExpiresInZ HttpMethodZ client_methodrXr3Z http_methodr*r& serializerr!rr@rrrrAes:    rAcKrr)Nr)rrtrrradd_generate_presigned_postrvrcCs|}|}|}|} |} |duri}n|}| durg} t|j} |j} |jjd} | d|i| }t||jj dt |dd| d|i| dr\| d d |dt d gn| d |i||d <| j||| | d S) a Builds the url and the form fields used for a presigned s3 post :type Bucket: string :param Bucket: The name of the bucket to presign the post to. Note that bucket related conditions should not be included in the ``conditions`` parameter. :type Key: string :param Key: Key name, optionally add ${filename} to the end to attach the submitted filename. Note that key related conditions and fields are filled out for you and should not be included in the ``Fields`` or ``Conditions`` parameter. :type Fields: dict :param Fields: A dictionary of prefilled form fields to build on top of. Elements that may be included are acl, Cache-Control, Content-Type, Content-Disposition, Content-Encoding, Expires, success_action_redirect, redirect, success_action_status, and x-amz-meta-. Note that if a particular element is included in the fields dictionary it will not be automatically added to the conditions list. You must specify a condition for the element as well. :type Conditions: list :param Conditions: A list of conditions to include in the policy. Each element can be either a list or a structure. For example: [ {"acl": "public-read"}, ["content-length-range", 2, 5], ["starts-with", "$success_action_redirect", ""] ] Conditions that are included may pertain to acl, content-length-range, Cache-Control, Content-Type, Content-Disposition, Content-Encoding, Expires, success_action_redirect, redirect, success_action_status, and/or x-amz-meta-. Note that if you include a condition, you must specify the a valid value in the fields dictionary as well. A value will not be added automatically to the fields dictionary based on the conditions. :type ExpiresIn: int :param ExpiresIn: The number of seconds the presigned post is valid for. :rtype: dict :returns: A dictionary with two elements: ``url`` and ``fields``. Url is the url to post to. Fields is a dictionary filled with the form fields and respective values to use when submitting the post. For example: {'url': 'https://mybucket.s3.amazonaws.com 'fields': {'acl': 'public-read', 'key': 'mykey', 'signature': 'mysignature', 'policy': 'mybase64 encoded policy'} } NZ CreateBucketBucketTrrbucketz ${filename}z starts-withz$keykey)r@rrr3)copyrr|rr{rrrrrrrr9r}r)rrKeyZFieldsZ Conditionsrrrrrr3Zpost_presignerrrr@rrrrsDA   rcCsR|jjdkrdS|jjj}|r'|ddrdS|ddkr'|jjjdkr'dSdS)NZawsFZuse_dualstack_endpointZus_east_1_regional_endpointZregionalz us-east-1T)r{ partitionconfigZs3r0r)ZclientZ s3_configrrrr$s   rr )Nr>N)NNr>)rnrrdrr.Z botocore.authZbotocore.awsrequestrrZbotocore.compatrZbotocore.exceptionsrrrZbotocore.utilsrr r rHrursrrrArrrrrrrs4    0 6R A z