…cifying a resource instead of a base url.

This enables resource like KeyVault and Container Registry to use an authorizer configured from a configuration file.

* Using the timeout from the context if available

- Makes PollingDuration optional

* Renaming the registration start time

* Making PollingDuration not a pointer

* fixing a broken reference

…n for the currently logged in user, for local development scenarios. (Azure#316)

…zure#332)

Added IsHTTPStatus() and HasHTTPStatus() methods to autorest.Response

* New Preparer: WithBytes

* New Responder: `ByUnmarshallingBytes`

* Reusing the bytes, rather than copying them

* Fixing the broken test / switching to read the bytes directly

RFC specifies Retry-After header can be integer value expressing seconds
or an HTTP-Date indicating when to try again.
Removed superfluous check for HTTP status code.

* Add support for multi-tenant authentication

Support for multi-tenant via x-ms-authorization-auxiliary header has
been added for client credentials with secret scenario; this basically
bundles multiple OAuthConfig and ServicePrincipalToken types into
corresponding MultiTenant* types along with a new authorizer that adds
the primary and auxiliary token headers to the reqest.
The authenticaion helpers have been updated to support this scenario; if
environment var AZURE_AUXILIARY_TENANT_IDS is set with a semicolon
delimited list of tenants the multi-tenant codepath will kick in to
create the appropriate authorizer.

* feedback

* Support custom SendDecorator chains via context

Added `autorest.WithSendDecorators` and `autorest.GetSendDecorators` for
adding and retrieving a custom chain of SendDecorators to the provided
context.
Added `autorest.DoRetryForStatusCodesWithCap` and
`autorest.DelayForBackoffWithCap` to enforce an upper bound on the
duration between retries.
Fixed up some code comments.

* small refactor based on PR feedback

* remove some changes for dev branch

* v12.3.0 (Azure#418)

* Deserialize additionalInfo in ARM error

* Allow a new authorizer to be created from a configuration file by specifying a resource instead of a base url.

This enables resource like KeyVault and Container Registry to use an authorizer configured from a configuration file.

* [WIP] Using the Context from the timeout if provided (Azure#315)

* Using the timeout from the context if available

- Makes PollingDuration optional

* Renaming the registration start time

* Making PollingDuration not a pointer

* fixing a broken reference

* Add NewAuthorizerFromCli method which uses Azure CLI to obtain a token for the currently logged in user, for  local development scenarios. (Azure#316)

* Adding User assigned identity support for the MSIConfig authorizor (Azure#332)

* Adding ByteSlicePtr (Azure#399)

* Adding a new `WithXML` method (Azure#402)

* Add HTTP status code response helpers (Azure#403)

Added IsHTTPStatus() and HasHTTPStatus() methods to autorest.Response

* adding a new preparer for `MERGE` used in the Storage API's (Azure#406)

* New Preparer/Responder for `Unmarshalling Bytes` (Azure#407)

* New Preparer: WithBytes

* New Responder: `ByUnmarshallingBytes`

* Reusing the bytes, rather than copying them

* Fixing the broken test / switching to read the bytes directly

* Support HTTP-Date in Retry-After header (Azure#410)

RFC specifies Retry-After header can be integer value expressing seconds
or an HTTP-Date indicating when to try again.
Removed superfluous check for HTTP status code.

* Add support for multi-tenant authentication (Azure#412)

* Add support for multi-tenant authentication

Support for multi-tenant via x-ms-authorization-auxiliary header has
been added for client credentials with secret scenario; this basically
bundles multiple OAuthConfig and ServicePrincipalToken types into
corresponding MultiTenant* types along with a new authorizer that adds
the primary and auxiliary token headers to the reqest.
The authenticaion helpers have been updated to support this scenario; if
environment var AZURE_AUXILIARY_TENANT_IDS is set with a semicolon
delimited list of tenants the multi-tenant codepath will kick in to
create the appropriate authorizer.

* feedback

* rename Options to OAuthOptions (Azure#415)

* Support custom SendDecorator chains via context (Azure#417)

* Support custom SendDecorator chains via context

Added `autorest.WithSendDecorators` and `autorest.GetSendDecorators` for
adding and retrieving a custom chain of SendDecorators to the provided
context.
Added `autorest.DoRetryForStatusCodesWithCap` and
`autorest.DelayForBackoffWithCap` to enforce an upper bound on the
duration between retries.
Fixed up some code comments.

* small refactor based on PR feedback

* remove some changes for dev branch

* v12.3.0

* add yaml file for azure devops CI (Azure#419)

* add status badge for azure devops CI (Azure#420)

* enable build and test on linux (Azure#421)

* enable build and test on linux

* fail on first error and use portable std*

* update test to run on devops

* Refactor azure devops pipeline (Azure#422)

Break monolithic script into separate scripts with useful names.
Moved formatting checks to the end with succeededOrFailed conditions.

* remove travis artifacts (Azure#423)

* remove unnecessary trigger section from devops (Azure#424)

…E is not set before falling back on ~/.azure/ (Azure#471)

* support for parsing error messages from xml responses

* fixing the linting

* removed some duplicate code

* fix bug introduced in refactoring

* added XML test and fixed bug it uncovered

…#475)

* Authorizers for Blob, File, Queue and Table Storage

* Adding a SharedKey authorizer

* refactor based on existing storage implementation

* add missing storage emulator account name

* replace hard-coded strings with constants

* changed to by-ref

* Adding a new Authorizer for SAS Token Authentication

This commit introduces a new Authorizer for authenticating with
Blob Storage using a SAS Token

```
$ go test -v ./autorest/ -run="TestSas"
=== RUN   TestSasNewSasAuthorizerEmptyToken
--- PASS: TestSasNewSasAuthorizerEmptyToken (0.00s)
=== RUN   TestSasNewSasAuthorizerEmptyTokenWithWhitespace
--- PASS: TestSasNewSasAuthorizerEmptyTokenWithWhitespace (0.00s)
=== RUN   TestSasNewSasAuthorizerValidToken
--- PASS: TestSasNewSasAuthorizerValidToken (0.00s)
=== RUN   TestSasAuthorizerRequest
--- PASS: TestSasAuthorizerRequest (0.00s)
    authorization_sas_test.go:76: [DEBUG] Testing Case "empty querystring without a prefix"..
    authorization_sas_test.go:76: [DEBUG] Testing Case "empty querystring with a prefix"..
    authorization_sas_test.go:76: [DEBUG] Testing Case "existing querystring without a prefix"..
    authorization_sas_test.go:76: [DEBUG] Testing Case "existing querystring with a prefix"..
PASS
ok  	github.com/Azure/go-autorest/autorest	0.011s
```

* minor clean-up

* token: support for a custom refresh func

* pass closures by value

* minor clean-up