GC: Contact Framework added (#473)

`exchange`.Contacts added to Collection retrieval option base through the use of a selector. 

The ExchangeDataCollection Function to be updated to make the function `Live` to be called externally

src/internal/connector/exchange/exchange_data_collection.go

@@ -53,7 +53,14 @@ type Collection struct {
 
 // Populater are a class of functions that can be used to fill exchange.Collections with
 // the corresponding information
-type populater func(context.Context, graph.Service, *Collection, chan<- *support.ConnectorOperationStatus)
+type populater func(
+	ctx context.Context,
+	service graph.Service,
+	user string,
+	jobs []string,
+	dataChannel chan<- data.Stream,
+	statusChannel chan<- *support.ConnectorOperationStatus,
+)
 
 // NewExchangeDataCollection creates an ExchangeDataCollection with fullPath is annotated
 func NewCollection(
@@ -80,7 +87,9 @@ func NewCollection(
 func getPopulateFunction(optID optionIdentifier) populater {
 	switch optID {
 	case messages:
-		return PopulateFromCollection
+		return PopulateForMailCollection
+	case contacts:
+		return PopulateForContactCollection
 	default:
 		return nil
 	}
@@ -95,7 +104,14 @@ func (eoc *Collection) AddJob(objID string) {
 // M365 exchange objects and returns the data channel
 func (eoc *Collection) Items() <-chan data.Stream {
 	if eoc.populate != nil {
-		go eoc.populate(context.TODO(), eoc.service, eoc, eoc.statusCh)
+		go eoc.populate(
+			context.TODO(),
+			eoc.service,
+			eoc.user,
+			eoc.jobs,
+			eoc.data,
+			eoc.statusCh,
+		)
 	}
 	return eoc.data
 }
@@ -105,46 +121,113 @@ func (eoc *Collection) FullPath() []string {
 	return append([]string{}, eoc.fullPath...)
 }
 
-// PopulateFromCollection async call to fill DataCollection via channel implementation
-func PopulateFromCollection(
+func PopulateForContactCollection(
 	ctx context.Context,
 	service graph.Service,
-	eoc *Collection,
+	user string,
+	jobs []string,
+	dataChannel chan<- data.Stream,
+	statusChannel chan<- *support.ConnectorOperationStatus,
+) {
+	var (
+		errs    error
+		success int
+	)
+	objectWriter := kw.NewJsonSerializationWriter()
+
+	for _, task := range jobs {
+		response, err := service.Client().UsersById(user).ContactsById(task).Get()
+		if err != nil {
+			trace := support.ConnectorStackErrorTrace(err)
+			errs = support.WrapAndAppend(
+				user,
+				errors.Wrapf(err, "unable to retrieve item %s; details: %s", task, trace),
+				errs,
+			)
+			continue
+		}
+		err = contactToDataCollection(ctx, service.Client(), objectWriter, dataChannel, response, user)
+		if err != nil {
+			errs = support.WrapAndAppendf(user, err, errs)
+
+			if service.ErrPolicy() {
+				break
+			}
+			continue
+		}
+
+		success++
+
+	}
+	close(dataChannel)
+	attemptedItems := len(jobs)
+	status := support.CreateStatus(ctx, support.Backup, attemptedItems, success, 1, errs)
+	logger.Ctx(ctx).Debug(status.String())
+	statusChannel <- status
+}
+
+// PopulateForMailCollection async call to fill DataCollection via channel implementation
+func PopulateForMailCollection(
+	ctx context.Context,
+	service graph.Service,
+	user string,
+	jobs []string,
+	dataChannel chan<- data.Stream,
 	statusChannel chan<- *support.ConnectorOperationStatus,
 ) {
 	var errs error
 	var attemptedItems, success int
 	objectWriter := kw.NewJsonSerializationWriter()
 
-	for _, task := range eoc.jobs {
-		response, err := service.Client().UsersById(eoc.user).MessagesById(task).Get()
+	for _, task := range jobs {
+		response, err := service.Client().UsersById(user).MessagesById(task).Get()
 		if err != nil {
-			errDetails := support.ConnectorStackErrorTrace(err)
-			errs = support.WrapAndAppend(
-				eoc.user,
-				errors.Wrapf(err, "unable to retrieve item %s; details %s", task, errDetails),
-				errs,
-			)
+			trace := support.ConnectorStackErrorTrace(err)
+			errs = support.WrapAndAppend(user, errors.Wrapf(err, "unable to retrieve item %s; details %s", task, trace), errs)
 			continue
 		}
-		err = messageToDataCollection(ctx, service.Client(), objectWriter, eoc.data, response, eoc.user)
-		success++
+		err = messageToDataCollection(ctx, service.Client(), objectWriter, dataChannel, response, user)
 		if err != nil {
-			errs = support.WrapAndAppendf(eoc.user, err, errs)
-			success--
-		}
-		if errs != nil && service.ErrPolicy() {
-			break
+			errs = support.WrapAndAppendf(user, err, errs)
+
+			if service.ErrPolicy() {
+				break
+			}
+			continue
 		}
+		success++
 	}
-	close(eoc.data)
-	attemptedItems += len(eoc.jobs)
+	close(dataChannel)
+	attemptedItems += len(jobs)
 
 	status := support.CreateStatus(ctx, support.Backup, attemptedItems, success, 1, errs)
 	logger.Ctx(ctx).Debug(status.String())
 	statusChannel <- status
 }
 
+func contactToDataCollection(
+	ctx context.Context,
+	client *msgraphsdk.GraphServiceClient,
+	objectWriter *kw.JsonSerializationWriter,
+	dataChannel chan<- data.Stream,
+	contact models.Contactable,
+	user string,
+) error {
+	defer objectWriter.Close()
+	err := objectWriter.WriteObjectValue("", contact)
+	if err != nil {
+		return support.SetNonRecoverableError(errors.Wrap(err, *contact.GetId()))
+	}
+	byteArray, err := objectWriter.GetSerializedContent()
+	if err != nil {
+		return support.WrapAndAppend(*contact.GetId(), err, nil)
+	}
+	if byteArray != nil {
+		dataChannel <- &Stream{id: *contact.GetId(), message: byteArray, info: nil}
+	}
+	return nil
+}
+
 func messageToDataCollection(
 	ctx context.Context,
 	client *msgraphsdk.GraphServiceClient,

src/internal/connector/exchange/exchange_data_collection_test.go

@@ -89,14 +89,16 @@ func (suite *ExchangeDataCollectionSuite) TestExchangeCollection_Items() {
 	expected := 5
 	testFunction := func(ctx context.Context,
 		service graph.Service,
-		eoc *Collection,
+		user string,
+		jobs []string,
+		dataChannel chan<- data.Stream,
 		notUsed chan<- *support.ConnectorOperationStatus) {
 		detail := &details.ExchangeInfo{Sender: "foo@bar.com", Subject: "Hello world!", Received: time.Now()}
 		for i := 0; i < expected; i++ {
 			temp := NewStream(uuid.NewString(), mockconnector.GetMockMessageBytes("Test_Items()"), *detail)
-			eoc.data <- &temp
+			dataChannel <- &temp
 		}
-		close(eoc.data)
+		close(dataChannel)
 	}
 
 	eoc := Collection{

src/internal/connector/exchange/exchange_service_test.go

@@ -4,7 +4,11 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 	"github.com/stretchr/testify/suite"
+
+	"github.com/alcionai/corso/internal/tester"
+	"github.com/alcionai/corso/pkg/selectors"
 )
 
 type ExchangeServiceSuite struct {
@@ -91,3 +95,27 @@ func (suite *ExchangeServiceSuite) TestExchangeService_optionsForFolders() {
 	}
 
 }
+
+// NOTE the requirements are in PR 475
+func (suite *ExchangeServiceSuite) TestExchangeService_SetupExchangeCollection() {
+	userID, err := tester.M365UserID()
+	require.NoError(suite.T(), err)
+	sel := selectors.NewExchangeBackup()
+	sel.Include(sel.Users([]string{userID}))
+	eb, err := sel.ToExchangeBackup()
+	require.NoError(suite.T(), err)
+	scopes := eb.Scopes()
+
+	for _, test := range scopes {
+		suite.T().Run(test.Category().String(), func(t *testing.T) {
+			discriminateFunc, graphQuery, iterFunc, err := SetupExchangeCollectionVars(test)
+			if test.Category() == selectors.ExchangeMailFolder ||
+				test.Category() == selectors.ExchangeContactFolder {
+				assert.NoError(t, err)
+				assert.NotNil(t, discriminateFunc)
+				assert.NotNil(t, graphQuery)
+				assert.NotNil(t, iterFunc)
+			}
+		})
+	}
+}

src/internal/connector/exchange/service_functions.go

@@ -179,22 +179,29 @@ func SetupExchangeCollectionVars(scope selectors.ExchangeScope) (
 	absser.ParsableFactory,
 	GraphQuery,
 	GraphIterateFunc,
+	error,
 ) {
 	if scope.IncludesCategory(selectors.ExchangeMail) {
-		folders := scope.Get(selectors.ExchangeMailFolder)
-		if folders[0] == selectors.AnyTgt {
+		if scope.IsAny(selectors.ExchangeMailFolder) {
 
 			return models.CreateMessageCollectionResponseFromDiscriminatorValue,
 				GetAllMessagesForUser,
-				IterateSelectAllMessagesForCollections
+				IterateSelectAllMessagesForCollections,
+				nil
 		}
 		return models.CreateMessageCollectionResponseFromDiscriminatorValue,
 			GetAllMessagesForUser,
-			IterateAndFilterMessagesForCollections
+			IterateAndFilterMessagesForCollections,
+			nil
 
 	}
-	return nil, nil, nil
-
+	if scope.IncludesCategory(selectors.ExchangeContactFolder) {
+		return models.CreateContactFromDiscriminatorValue,
+			GetAllContactsForUser,
+			IterateAllContactsForCollection,
+			nil
+	}
+	return nil, nil, nil, errors.New("exchange scope option not supported")
 }
 
 // GetCopyRestoreFolder utility function to create an unique folder for the restore process

src/internal/connector/exchange/service_query.go

@@ -6,6 +6,7 @@ import (
 	absser "github.com/microsoft/kiota-abstractions-go/serialization"
 	msgraphgocore "github.com/microsoftgraph/msgraph-sdk-go-core"
 	"github.com/microsoftgraph/msgraph-sdk-go/models"
+	mscontacts "github.com/microsoftgraph/msgraph-sdk-go/users/item/contacts"
 	msfolder "github.com/microsoftgraph/msgraph-sdk-go/users/item/mailfolders"
 	msmessage "github.com/microsoftgraph/msgraph-sdk-go/users/item/messages"
 	msitem "github.com/microsoftgraph/msgraph-sdk-go/users/item/messages/item"
@@ -19,7 +20,10 @@ import (
 
 type optionIdentifier int
 
-const mailCategory = "mail"
+const (
+	mailCategory     = "mail"
+	contactsCategory = "contacts"
+)
 
 //go:generate stringer -type=optionIdentifier
 const (
@@ -27,23 +31,34 @@ const (
 	folders
 	messages
 	users
+	contacts
 )
 
 // GraphQuery represents functions which perform exchange-specific queries
 // into M365 backstore.
 //TODO: use selector or path for granularity into specific folders or specific date ranges
-type GraphQuery func(graph.Service, []string) (absser.Parsable, error)
+type GraphQuery func(graph.Service, string) (absser.Parsable, error)
 
 // GetAllMessagesForUser is a GraphQuery function for receiving all messages for a single user
-func GetAllMessagesForUser(gs graph.Service, identities []string) (absser.Parsable, error) {
+func GetAllMessagesForUser(gs graph.Service, user string) (absser.Parsable, error) {
 	selecting := []string{"id", "parentFolderId"}
 	options, err := optionsForMessages(selecting)
 
 	if err != nil {
 		return nil, err
 	}
+	return gs.Client().UsersById(user).Messages().GetWithRequestConfigurationAndResponseHandler(options, nil)
+}
+
+// GetAllContactsForUser is a GraphQuery function for querying all the contacts in a user's account
+func GetAllContactsForUser(gs graph.Service, user string) (absser.Parsable, error) {
+	selecting := []string{"id", "parentFolderId"}
+	options, err := optionsForContacts(selecting)
+	if err != nil {
+		return nil, err
+	}
+	return gs.Client().UsersById(user).Contacts().GetWithRequestConfigurationAndResponseHandler(options, nil)
 
-	return gs.Client().UsersById(identities[0]).Messages().GetWithRequestConfigurationAndResponseHandler(options, nil)
 }
 
 // GetAllFolderDisplayNamesForUser is a GraphQuery function for getting FolderId and display
@@ -62,13 +77,13 @@ func GetAllFolderNamesForUser(gs graph.Service, identities []string) (absser.Par
 // GraphIterateFuncs are iterate functions to be used with the M365 iterators (e.g. msgraphgocore.NewPageIterator)
 // @returns a callback func that works with msgraphgocore.PageIterator.Iterate function
 type GraphIterateFunc func(
-	string,
-	selectors.ExchangeScope,
-	error,
-	bool,
-	account.M365Config,
-	map[string]*Collection,
-	chan<- *support.ConnectorOperationStatus,
+	tenant string,
+	scope selectors.ExchangeScope,
+	errs error,
+	failFast bool,
+	credentials account.M365Config,
+	collections map[string]*Collection,
+	graphStatusChannel chan<- *support.ConnectorOperationStatus,
 ) func(any) bool
 
 // IterateSelectAllMessageForCollection utility function for
@@ -116,6 +131,48 @@ func IterateSelectAllMessagesForCollections(
 	}
 }
 
+// IterateAllContactsForCollection GraphIterateFunc for moving through
+// a ContactsCollectionsResponse using the msgraphgocore paging interface.
+// Contacts Ids are placed into a collection based upon the parent folder
+func IterateAllContactsForCollection(
+	tenant string,
+	scope selectors.ExchangeScope,
+	errs error,
+	failFast bool,
+	credentials account.M365Config,
+	collections map[string]*Collection,
+	statusCh chan<- *support.ConnectorOperationStatus,
+) func(any) bool {
+	return func(contactsItem any) bool {
+
+		user := scope.Get(selectors.ExchangeUser)[0]
+
+		contact, ok := contactsItem.(models.Contactable)
+		if !ok {
+			errs = support.WrapAndAppend(user, errors.New("contact iteration failure"), errs)
+			return true
+		}
+		directory := *contact.GetParentFolderId()
+		if _, ok := collections[directory]; !ok {
+			service, err := createService(credentials, failFast)
+			if err != nil {
+				errs = support.WrapAndAppend(user, err, errs)
+				return true
+			}
+			edc := NewCollection(
+				user,
+				[]string{tenant, user, contactsCategory, directory},
+				contacts,
+				service,
+				statusCh,
+			)
+			collections[directory] = &edc
+		}
+		collections[directory].AddJob(*contact.GetId())
+		return true
+	}
+}
+
 func IterateAndFilterMessagesForCollections(
 	tenant string,
 	scope selectors.ExchangeScope,
@@ -289,6 +346,22 @@ func optionsForMailFolders(moreOps []string) (*msfolder.MailFoldersRequestBuilde
 	return options, nil
 }
 
+// optionsForContacts transforms options into select query for MailContacts
+// @return is the first call in Contacts().GetWithRequestConfigurationAndResponseHandler(options, handler)
+func optionsForContacts(moreOps []string) (*mscontacts.ContactsRequestBuilderGetRequestConfiguration, error) {
+	selecting, err := buildOptions(moreOps, contacts)
+	if err != nil {
+		return nil, err
+	}
+	requestParameters := &mscontacts.ContactsRequestBuilderGetQueryParameters{
+		Select: selecting,
+	}
+	options := &mscontacts.ContactsRequestBuilderGetRequestConfiguration{
+		QueryParameters: requestParameters,
+	}
+	return options, nil
+}
+
 // buildOptions - Utility Method for verifying if select options are valid for the m365 object type
 // @return is a pair. The first is a string literal of allowable options based on the object type,
 // the second is an error. An error is returned if an unsupported option or optionIdentifier was used
@@ -321,9 +394,16 @@ func buildOptions(options []string, optID optionIdentifier) ([]string, error) {
 		"webLink":           5,
 		"id":                6,
 	}
+
+	fieldsForContacts := map[string]int{
+		"id":             1,
+		"parentFolderId": 2,
+	}
 	returnedOptions := []string{"id"}
 
 	switch optID {
+	case contacts:
+		allowedOptions = fieldsForContacts
 	case folders:
 		allowedOptions = fieldsForFolders
 	case users:

src/internal/connector/graph_connector.go

@@ -299,15 +299,17 @@ func (gc *GraphConnector) createCollections(
 	ctx context.Context,
 	scope selectors.ExchangeScope,
 ) (map[string]*exchange.Collection, error) {
-
 	var (
 		transformer absser.ParsableFactory
 		query       exchange.GraphQuery
 		gIter       exchange.GraphIterateFunc
 	)
 	user := scope.Get(selectors.ExchangeUser)[0]
-	transformer, query, gIter = exchange.SetupExchangeCollectionVars(scope)
-	response, err := query(&gc.graphService, []string{user})
+	transformer, query, gIter, err := exchange.SetupExchangeCollectionVars(scope)
+	if err != nil {
+		return nil, support.WrapAndAppend(user, err, nil)
+	}
+	response, err := query(&gc.graphService, user)
 	if err != nil {
 		return nil, err
 	}
@@ -319,7 +321,7 @@ func (gc *GraphConnector) createCollections(
 	collections := make(map[string]*exchange.Collection)
 	var errs error
 	// callbackFunc iterates through all models.Messageable and fills exchange.Collection.jobs[]
-	// with corresponding messageIDs. New collections are created for each directory
+	// with corresponding item IDs. New collections are created for each directory
 	callbackFunc := gIter(gc.tenant, scope, errs, gc.failFast, gc.credentials, collections, gc.statusCh)
 	iterateError := pageIterator.Iterate(callbackFunc)
 	if iterateError != nil {

src/internal/connector/graph_connector_test.go

@@ -126,6 +126,44 @@ func (suite *GraphConnectorIntegrationSuite) TestGraphConnector_MailRegressionTe
 	}
 }
 
+// TestGraphConnector_TestContactSequence verifies retrieval sequence
+func (suite *GraphConnectorIntegrationSuite) TestGraphConnector_TestContactSequence() {
+	userID, err := tester.M365UserID()
+	require.NoError(suite.T(), err)
+	sel := selectors.NewExchangeBackup()
+	sel.Include(sel.Users([]string{userID}))
+	eb, err := sel.ToExchangeBackup()
+	require.NoError(suite.T(), err)
+	scopes := eb.Scopes()
+	var contactsOnly selectors.ExchangeScope
+	for _, scope := range scopes {
+		if scope.IncludesCategory(selectors.ExchangeContactFolder) {
+			contactsOnly = scope
+		}
+	}
+	collections, err := suite.connector.createCollections(context.Background(), contactsOnly)
+	assert.NoError(suite.T(), err)
+	number := 0
+	for _, edc := range collections {
+		testName := fmt.Sprintf("%s_ContactFolder_%d", edc.FullPath()[1], number)
+		suite.T().Run(testName, func(t *testing.T) {
+			streamChannel := edc.Items()
+			for stream := range streamChannel {
+				buf := &bytes.Buffer{}
+				read, err := buf.ReadFrom(stream.ToReader())
+				suite.NoError(err)
+				suite.NotZero(read)
+				message, err := support.CreateMessageFromBytes(buf.Bytes())
+				suite.NotNil(message)
+				suite.NoError(err)
+
+			}
+			number++
+		})
+	}
+	suite.Greater(len(collections), 0)
+}
+
 //TestGraphConnector_restoreMessages uses mock data to ensure GraphConnector
 // is able to restore a messageable item to a Mailbox.
 func (suite *GraphConnectorIntegrationSuite) TestGraphConnector_restoreMessages() {