Rewrite auth to use new client interface. Add new auth client for loc…

…al web authentication.

.gitignore

@@ -21,4 +21,7 @@
 #   "ClientSecret": "as09djfa9sjdf",
 #   "TenantID": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxx",
 # }
-test.json
+test.json
+
+main.go
+msgoraph

Makefile

@@ -1,9 +1,10 @@
 build:
-	go build github.com/mhoc/msgoraph
-	go build github.com/mhoc/msgoraph/auth
-	go build github.com/mhoc/msgoraph/common
-	go build github.com/mhoc/msgoraph/internal
-	go build github.com/mhoc/msgoraph/users
+	vgo build github.com/mhoc/msgoraph
+	vgo build github.com/mhoc/msgoraph/client
+	vgo build github.com/mhoc/msgoraph/common
+	vgo build github.com/mhoc/msgoraph/internal
+	vgo build github.com/mhoc/msgoraph/scopes
+	vgo build github.com/mhoc/msgoraph/users
 
 docs:
 	@echo "http://localhost:6060/pkg/github.com/mhoc/msgoraph/"

README.md

@@ -4,9 +4,13 @@
 
 A zero dependency Go Client for [Microsoft's Graph API](https://developer.microsoft.com/en-us/graph/docs/concepts/overview). This is built and distributed under all of the philosophies of [vgo](https://research.swtch.com/vgo) for future compatibility, but should work with a simple `go get`, `dep`, or your package management tool of choice until `vgo` is stable. 
 
-## Stability Warning
+## Disclaimers
 
-This library is pre-release, under active development, and has no tests. We will do our best to ensure that tagged releases are stable enough to use the functionality they export, but bugs could happen. Becuase this is pre-release, the Go Import Compatibility Rule does not apply and backward-incompatible changes should be expected between minor pre-release versions. Make sure to pin your version.
+This library is completely unaffiliated with Microsoft.
+
+This library is pre-release, under active development, and has no tests. We will do our best to ensure that tagged releases are stable enough to use the functionality they export, but bugs could happen. 
+
+This library is in pre-release, and as such the Go Import Compatibility Rule does not apply. Backward-incompatible changes should be expected between all tagged versions and commits. 
 
 ## Supported Operations
 

client/client.go

@@ -0,0 +1,30 @@
+package client
+
+import (
+	"sync"
+	"time"
+)
+
+// Client is an interface which all client types abide by. It guarantees operations around
+// credentials; primarily getting, initializing, and refreshing.
+type Client interface {
+	Credentials() *RequestCredentials
+
+	// InitializeCredentials should make the initial requests necessary to establish the first set of
+	// authentication credentials within the Client.
+	InitializeCredentials() error
+
+	// RefreshCredentials should initiate an internal refresh of the request credentials inside this
+	// client. This refresh should, whenever possible, check the
+	// RequestCredentials.AccessTokenExpiresAt field to determine whether it should actually refresh
+	// the credentials or if the credentials are still valid.
+	RefreshCredentials() error
+}
+
+// RequestCredentials stores all the information necessary to authenticate a request with the
+// Microsoft GraphAPI
+type RequestCredentials struct {
+	AccessToken          string
+	AccessTokenExpiresAt time.Time
+	AccessTokenUpdating  sync.Mutex
+}

client/doc.go

@@ -0,0 +1,3 @@
+// Package client implements client state, authentication, pagination, type helpers, and method
+// helpers concerning accessing resources in the Microsoft Graph API.
+package client