Go 1.11 on App Engine standard is a "second generation" runtime, and
second generation runtimes do not set the appengine build tag.
appengine_hook.go was behind the appengine build tag, meaning that
AppEngineTokenSource panicked on the go111 runtime, saying,
"AppEngineTokenSource can only be used on App Engine."
The second gen runtimes should use ComputeTokenSource, which is also
what flex does [1]. This commit does two things to remedy the situation:
1. Put the pre-existing implementation of AppEngineTokenSource behind
the appengine build tag since it only works on first gen App Engine
runtimes. This leaves first gen behavior unchanged.
2. Add a new implementation of AppEngineTokenSource and tag it
!appengine. This implementation will therefore be used by second gen
App Engine standard runtimes and App Engine flexible. It delegates
to ComputeTokenSource.
The new AppEngineTokenSource implementation emits a log message
informing the user that AppEngineTokenSource is deprecated for second
gen runtimes and flex, instructing them to use DefaultTokenSource or
ComputeTokenSource instead. The documentation is updated to say the
same.
In this way users will not break when upgrading from Go 1.9 to Go 1.11
on App Engine but they will be nudged toward the world where App Engine
runtimes have less special behavior.
findDefaultCredentials still calls AppEngineTokenSource for first gen
runtimes and ComputeTokenSource for flex.
Fixes#334
Test: I deployed an app that uses AppEngineTokenSource to Go 1.9 and
Go 1.11 on App Engine standard and to Go 1.11 on App Engine
flexible and it worked in all cases. Also verified that the log
message is present on go111 and flex.
[1] DefaultTokenSource did use ComputeTokenSource for flex but
AppEngineTokenSource did not. AppEngineTokenSource is supported on flex,
in the sense that it doesn't panic when used on flex in the way it does
when used outside App Engine. However, AppEngineTokenSource makes an API
call internally that isn't supported by default on flex, which emits a
log instructing the user to enable the compat runtime. The compat
runtimes are deprecated and deploys are blocked. This is a bad
experience. This commit has the side effect of fixing this.
Change-Id: Iab63547b410535db60dcf204782d5b6b599a4e0c
GitHub-Last-Rev: 5779afb167
GitHub-Pull-Request: golang/oauth2#341
Reviewed-on: https://go-review.googlesource.com/c/146177
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Before AppEngine classic allowed "google.golang.org/appengine" imports,
we used to maintain two hook files to choose either from "appengine" or
"google.golang.org/appengine" namespaces. Now, both environments allow
importing from "google.golang.org/appengine". Therefore, there
is no need to set hooks in two separate files.
Also note that Flex prefers to use metadata server, so we still
need to be able to differentiate between these environments.
Change-Id: I7478ebdfa1b062d466aaf2aca938f93d42b4c58a
Reviewed-on: https://go-review.googlesource.com/37378
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This new function allows reading the project ID from a service account
JSON file without an additional disk read.
Change-Id: I1f03ca3ca39a2ae3bd6524367c17761b0f08de45
Reviewed-on: https://go-review.googlesource.com/32876
Reviewed-by: Jaana Burcu Dogan <jbd@google.com>
You can now use the "google.golang.org/appengine" packages on both
Managed VMs and App Engine Classic(TM). The newer packages use the
context.Context instead of appengine.Context, so we no longer need the
oauth2.Context type.
Some clients will require code changes, replacing oauth2.Context or
appengine.Context with context.Context (imported from
the repository "golang.org/x/net/context").
Users of classic App Engine must switch to using the new
"google.golang.org/appengine" packages in order to use the oauth2
package.
Fixes#89
Change-Id: Ibaff3117117f9f7c5d1b3048a6e4086f62c18c3b
Reviewed-on: https://go-review.googlesource.com/6075
Reviewed-by: Burcu Dogan <jbd@google.com>
This follows the change to the google.golang.org/appengine packages
to use the standard context.Context type throughout.
Change-Id: I91b456105ee29f2088c3646145ea0a940f8ffaf4
Reviewed-on: https://go-review.googlesource.com/3172
Reviewed-by: Burcu Dogan <jbd@google.com>
Reviewed-by: David Symonds <dsymonds@golang.org>
- Removed Flow, flow is a nothing but options.
- Renamed Cacher to Storer.
- Removed the setter from the Transport. Store should do the initial set.
Getter is not removed, because extra fields are available through
Transport.Token.Extra(). It's not pleasant to implement a custom Storer
implementation to read such values.
oauth2: Remove VMs from the AppEngine example title
- Reduce the duplicate code by merging the flows and
determining the flow type by looking at the provided options.
- Options as a function type allows us to validate an individual
an option in its scope and makes it easier to compose the
built-in options with the third-party ones.
This change is for both App Engine and Managed VMs so that these apps can scale without running into the app_identity_service quota limit due to calling appengine.AccessToken too frequently. An added benefit of caching is that calls to Google APIs will be significantly sped up due to removing the round-trip calls to the api_identity_service.
GAE managed VM runtime contains both appengine and appenginevm
build tags. Currently, appengine.go is being built even if user
wants to use the package on managed VM that errors with no
"appengine" package to import.
Antoine GIRARD
Michael Traver
Jaana Burcu Dogan
Ross Light
Andrew Gerrand
Chris Broadfoot
Dave Day
Glenn Lewis
Johan Euphrosine