Add presignable trait to Smithy #897

kggilmer · 2021-08-24T21:46:43Z

Issue #, if available: N/A

Description of changes:

Adds an annotation trait that provides context about which specific service operations may have client-side presigners. This state is currently modeled in customizations in various SDKs. Some samples: Java v2 (in code, eg S3), Go v2, and Kotlin SDKs.

NOTE: this trait only models a specific use case for presigners: generators. It does not model "presign url autofill parameters" of some services due to current migration away from this to other approaches.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

JordonPhillips

Sorry for the delay on this, looks like it got a bit lost between oncalls

JordonPhillips · 2021-09-02T13:55:12Z

docs/source/1.0/spec/aws/aws-auth.rst

 .. smithy-trait:: aws.auth#cognitoUserPools
 .. _aws.auth#cognitoUserPools-trait:

+------------------------
+``presignable`` trait
+------------------------


You'll need to add a smithy-trait directive here and make sure that the cognito user pools directive is directly above its trait. Also the title here should be fully qualified, e.g. aws.auth#presignable (to be fair, we're inconsistent on this currently)

Ah, I didn't notice the significance of these directives. Fixed, thanks.

JordonPhillips · 2021-09-02T13:57:02Z

docs/source/1.0/spec/aws/aws-auth.rst

+Trait value
+    Annotation trait.
+
+The following example defines a service operation for which presigned requests can be generated for.


You should include a directions on how to pre-sign a request, or at least link to any existing AWS docs that do the same.

not: no need for the last "for" in the above sentence.

fixed in #1077

JordonPhillips · 2021-09-02T13:58:41Z

smithy-aws-traits/src/main/resources/META-INF/smithy/aws.auth.json

+                "smithy.api#trait": {
+                    "selector": "operation"
+                },
+                "smithy.api#documentation": "indicates that a client presigner could be generated for the given operation."


Suggested change

"smithy.api#documentation": "indicates that a client presigner could be generated for the given operation."

"smithy.api#documentation": "Indicates that a client presigner can be generated for the given operation."

JordonPhillips · 2021-09-02T13:59:19Z

docs/source/1.0/spec/aws/aws-auth.rst

+    difficult or impossible.  This trait indicates that a client presigner could be
+    generated for the given operation.


Suggested change

difficult or impossible. This trait indicates that a client presigner could be

generated for the given operation.

difficult or impossible. This trait indicates that a client presigner can be

generated for the given operation.

kggilmer · 2021-09-23T22:51:27Z

bump @JordonPhillips

JordonPhillips

Looks good! Lets get some more feedback from the other sdk teams before we merge though

brainstorm · 2021-09-27T12:49:32Z

Does this trait account for the new Sigv4-A or just Sigv4? See awslabs/aws-sdk-rust#139 (comment) for more details.

kggilmer · 2021-09-28T18:27:22Z

@brainstorm the trait is not auth implementation specific. Rather, the trait references a specific operation. Details such as auth scheme can be determined elsewhere in the model associated with the tagged operation.

mtdowling · 2021-10-15T20:43:40Z

docs/source/1.0/spec/aws/aws-auth.rst

+.. smithy-trait:: aws.auth#presignable
+.. _aws.auth#presignable-trait:
+
+------------------------


This needs to span the entire width of the text. So add more "-" characters.

fixed in #1077

mtdowling · 2021-10-15T20:43:52Z

docs/source/1.0/spec/aws/aws-auth.rst

+    operation invocation that may be used in contexts where direct calls may be
+    difficult or impossible. This trait indicates that a client presigner can be
+    generated for the given operation.
+


I think this line needs to be removed.

fixed in #1077

mtdowling · 2021-10-15T20:45:08Z

docs/source/1.0/spec/aws/aws-auth.rst

+Trait value
+    Annotation trait.
+
+The following example defines a service operation for which presigned requests can be generated for.


not: no need for the last "for" in the above sentence.

mtdowling · 2021-10-15T20:45:33Z

docs/source/1.0/spec/aws/aws-auth.rst

+    operation PingServer {}
+
+
+Given this model, a client-side code generator may generate a function that presigns a `PingServer` request.


nit: we typically try to wrap .rst files at 80 chars

fixed in #1077

mtdowling · 2021-10-15T20:46:51Z

smithy-aws-traits/src/main/java/software/amazon/smithy/aws/traits/auth/PresignableTrait.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.


fixed in #1077 (2022)

mtdowling · 2021-10-15T20:47:52Z

docs/source/1.0/spec/aws/aws-auth.rst

+------------------------
+
+Trait Summary
+    A presigner is a client-side utility that generates a presigned request for a given


Can this start with a short sentence like: "Indicates that an operation can be presigned"?

fixed in #1077

mtdowling · 2021-10-15T20:48:04Z

smithy-aws-traits/src/main/resources/META-INF/smithy/aws.auth.json

+                "smithy.api#trait": {
+                    "selector": "operation"
+                },
+                "smithy.api#documentation": "Indicates that a client presigner can be generated for the given operation."


Suggestion: "Indicates that an operation can be presigned."

fixed in #1077

kggilmer · 2022-02-03T00:46:11Z

Closing in favor of #1077

Add presignable trait to Smithy

73a633b

kggilmer requested review from mtdowling, jasdel and kstich August 24, 2021 21:46

kggilmer requested review from DavidOgunsAWS and JordonPhillips as code owners August 24, 2021 21:46

kggilmer mentioned this pull request Sep 1, 2021

RFC: API for Pre-signed URLs smithy-lang/smithy-rs#681

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JordonPhillips requested changes Sep 2, 2021

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Fixes and tweaks from PR feedback

abc7556

JordonPhillips reviewed Sep 27, 2021

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jdisanti mentioned this pull request Oct 1, 2021

Add presigned request support for Polly smithy-lang/smithy-rs#735

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mtdowling requested changes Oct 15, 2021

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kggilmer added a commit to kggilmer/smithy that referenced this pull request Feb 3, 2022

Rewrite smithy-lang#897 in forked copy of repo

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kggilmer mentioned this pull request Feb 3, 2022

Add presignable trait to Smithy #1077

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Add presignable trait to Smithy #897

Add presignable trait to Smithy #897

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kggilmer commented Feb 3, 2022

	"smithy.api#documentation": "indicates that a client presigner could be generated for the given operation."
	"smithy.api#documentation": "Indicates that a client presigner can be generated for the given operation."

		difficult or impossible. This trait indicates that a client presigner could be
		generated for the given operation.

		operation PingServer {}


		Given this model, a client-side code generator may generate a function that presigns a `PingServer` request.

		@@ -0,0 +1,39 @@
		/*
		* Copyright 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.

Add presignable trait to Smithy #897

Add presignable trait to Smithy #897

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kggilmer commented Aug 24, 2021 • edited Loading

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kggilmer commented Sep 23, 2021

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kggilmer commented Feb 3, 2022

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