feat: Unfurl transaction deep link

protocol/common/message_linkpreview.go

@@ -54,6 +54,15 @@ type StatusCommunityLinkPreview struct {
 	Banner       LinkPreviewThumbnail `json:"banner,omitempty"`
 }
 
+type StatusTransactionLinkPreview struct {
+	TxType  int    `json:"txType"`
+	Amount  string `json:"amount"`
+	Asset   string `json:"asset"`
+	ToAsset string `json:"toAsset"`
+	Address string `json:"address"`
+	ChainID int    `json:"chainId"`
+}
+
 type StatusCommunityChannelLinkPreview struct {
 	ChannelUUID string                      `json:"channelUuid"`
 	Emoji       string                      `json:"emoji"`
@@ -64,10 +73,11 @@ type StatusCommunityChannelLinkPreview struct {
 }
 
 type StatusLinkPreview struct {
-	URL       string                             `json:"url,omitempty"`
-	Contact   *StatusContactLinkPreview          `json:"contact,omitempty"`
-	Community *StatusCommunityLinkPreview        `json:"community,omitempty"`
-	Channel   *StatusCommunityChannelLinkPreview `json:"channel,omitempty"`
+	URL         string                             `json:"url,omitempty"`
+	Contact     *StatusContactLinkPreview          `json:"contact,omitempty"`
+	Community   *StatusCommunityLinkPreview        `json:"community,omitempty"`
+	Channel     *StatusCommunityChannelLinkPreview `json:"channel,omitempty"`
+	Transaction *StatusTransactionLinkPreview      `json:"transaction,omitempty"`
 }
 
 func (thumbnail *LinkPreviewThumbnail) IsEmpty() bool {
@@ -161,17 +171,23 @@ func (preview *StatusLinkPreview) validateForProto() error {
 	}
 
 	// At least and only one of Contact/Community/Channel should be present in the preview
-	if preview.Contact != nil && preview.Community != nil {
-		return fmt.Errorf("both contact and community are set at the same time")
+	var linkTypes []string
+	if preview.Contact != nil {
+		linkTypes = append(linkTypes, "Contact")
 	}
-	if preview.Community != nil && preview.Channel != nil {
-		return fmt.Errorf("both community and channel are set at the same time")
+	if preview.Community != nil {
+		linkTypes = append(linkTypes, "Community")
 	}
-	if preview.Channel != nil && preview.Contact != nil {
-		return fmt.Errorf("both contact and channel are set at the same time")
+	if preview.Channel != nil {
+		linkTypes = append(linkTypes, "Channel")
 	}
-	if preview.Contact == nil && preview.Community == nil && preview.Channel == nil {
-		return fmt.Errorf("none of contact/community/channel are set")
+	if preview.Transaction != nil {
+		linkTypes = append(linkTypes, "Transaction")
+	}
+	if len(linkTypes) > 1 {
+		return fmt.Errorf("multiple components set at the same time: %v", linkTypes)
+	} else if len(linkTypes) == 0 {
+		return fmt.Errorf("none of contact/community/channel/transaction are set")
 	}
 
 	if preview.Contact != nil {
@@ -200,6 +216,14 @@ func (preview *StatusLinkPreview) validateForProto() error {
 		}
 		return nil
 	}
+
+	if preview.Transaction != nil {
+		if preview.Transaction.Asset == "" && preview.Transaction.Amount == "" && preview.Transaction.Address == "" && preview.Transaction.ToAsset == "" {
+			return fmt.Errorf("transaction fields are empty")
+		}
+		return nil
+	}
+
 	return nil
 }
 
@@ -444,6 +468,19 @@ func (m *Message) ConvertStatusLinkPreviewsToProto() (*protobuf.UnfurledStatusLi
 
 		}
 
+		if preview.Transaction != nil {
+			ul.Payload = &protobuf.UnfurledStatusLink_Transaction{
+				Transaction: &protobuf.UnfurledStatusTransactionLink{
+					TxType:  uint32(preview.Transaction.TxType),
+					Amount:  preview.Transaction.Amount,
+					Asset:   preview.Transaction.Asset,
+					ToAsset: preview.Transaction.ToAsset,
+					Address: preview.Transaction.Address,
+					ChainId: uint32(preview.Transaction.ChainID),
+				},
+			}
+		}
+
 		unfurledLinks = append(unfurledLinks, ul)
 	}
 
@@ -508,6 +545,17 @@ func (m *Message) ConvertFromProtoToStatusLinkPreviews(makeMediaServerURL func(m
 			}
 		}
 
+		if c := link.GetTransaction(); c != nil {
+			lp.Transaction = &StatusTransactionLinkPreview{
+				TxType:  int(c.TxType),
+				Amount:  c.Amount,
+				Asset:   c.Asset,
+				ToAsset: c.ToAsset,
+				Address: c.Address,
+				ChainID: int(c.ChainId),
+			}
+		}
+
 		previews = append(previews, lp)
 	}
 

protocol/common/message_test.go

@@ -338,6 +338,15 @@ func TestConvertStatusLinkPreviewsToProto(t *testing.T) {
 		},
 	}
 
+	transaction := &StatusTransactionLinkPreview{
+		TxType:  2,
+		Amount:  "Amount_22",
+		Asset:   "Asset_23",
+		ToAsset: "ToAsset_24",
+		Address: "Address_25",
+		ChainID: 26,
+	}
+
 	message := Message{
 		StatusLinkPreviews: []StatusLinkPreview{
 			{
@@ -352,6 +361,10 @@ func TestConvertStatusLinkPreviewsToProto(t *testing.T) {
 				URL:     "https://status.app/cc/",
 				Channel: channel,
 			},
+			{
+				URL:         "https://status.app/tx/",
+				Transaction: transaction,
+			},
 		},
 	}
 
@@ -360,7 +373,7 @@ func TestConvertStatusLinkPreviewsToProto(t *testing.T) {
 
 	unfurledLinks, err := message.ConvertStatusLinkPreviewsToProto()
 	require.NoError(t, err)
-	require.Len(t, unfurledLinks.UnfurledStatusLinks, 3)
+	require.Len(t, unfurledLinks.UnfurledStatusLinks, 4)
 
 	// Contact link
 
@@ -369,6 +382,7 @@ func TestConvertStatusLinkPreviewsToProto(t *testing.T) {
 	require.NotNil(t, l1.GetContact())
 	require.Nil(t, l1.GetCommunity())
 	require.Nil(t, l1.GetChannel())
+	require.Nil(t, l1.GetTransaction())
 	c1 := l1.GetContact()
 	require.Equal(t, compressedContactPublicKey, c1.PublicKey)
 	require.Equal(t, contact.DisplayName, c1.DisplayName)
@@ -385,6 +399,7 @@ func TestConvertStatusLinkPreviewsToProto(t *testing.T) {
 	require.NotNil(t, l2.GetCommunity())
 	require.Nil(t, l2.GetContact())
 	require.Nil(t, l2.GetChannel())
+	require.Nil(t, l2.GetTransaction())
 	c2 := l2.GetCommunity()
 	require.Equal(t, compressedCommunityPublicKey, c2.CommunityId)
 	require.Equal(t, community.DisplayName, c2.DisplayName)
@@ -407,6 +422,7 @@ func TestConvertStatusLinkPreviewsToProto(t *testing.T) {
 	require.NotNil(t, l3.GetChannel())
 	require.Nil(t, l3.GetContact())
 	require.Nil(t, l3.GetCommunity())
+	require.Nil(t, l3.GetTransaction())
 
 	c3 := l3.GetChannel()
 	require.Equal(t, channel.ChannelUUID, c3.ChannelUuid)
@@ -430,6 +446,23 @@ func TestConvertStatusLinkPreviewsToProto(t *testing.T) {
 	require.Equal(t, uint32(channel.Community.Banner.Height), c3.Community.Banner.Height)
 	require.Equal(t, expectedThumbnailPayload, c3.Community.Banner.Payload)
 
+	// Transaction link
+
+	l4 := unfurledLinks.UnfurledStatusLinks[3]
+	require.Equal(t, "https://status.app/tx/", l4.Url)
+	require.NotNil(t, l4.GetTransaction())
+	require.Nil(t, l4.GetContact())
+	require.Nil(t, l4.GetCommunity())
+	require.Nil(t, l4.GetChannel())
+
+	t4 := l4.GetTransaction()
+	require.Equal(t, uint32(transaction.TxType), t4.TxType)
+	require.Equal(t, transaction.Amount, t4.Amount)
+	require.Equal(t, transaction.Asset, t4.Asset)
+	require.Equal(t, transaction.ToAsset, t4.ToAsset)
+	require.Equal(t, transaction.Address, t4.Address)
+	require.Equal(t, uint32(transaction.ChainID), t4.ChainId)
+
 	// Test any invalid link preview causes an early return.
 	invalidContactPreview := contact
 	invalidContactPreview.PublicKey = ""
@@ -516,6 +549,15 @@ func TestConvertFromProtoToStatusLinkPreviews(t *testing.T) {
 		},
 	}
 
+	transaction := &protobuf.UnfurledStatusTransactionLink{
+		TxType:  1,
+		Amount:  "100",
+		Asset:   "ETH",
+		ToAsset: "DAI",
+		Address: "0x1234567890",
+		ChainId: 11,
+	}
+
 	msg := Message{
 		ID: "42",
 		ChatMessage: &protobuf.ChatMessage{
@@ -539,6 +581,12 @@ func TestConvertFromProtoToStatusLinkPreviews(t *testing.T) {
 							Channel: channel,
 						},
 					},
+					{
+						Url: "https://status.app/tx/",
+						Payload: &protobuf.UnfurledStatusLink_Transaction{
+							Transaction: transaction,
+						},
+					},
 				},
 			},
 		},
@@ -549,7 +597,7 @@ func TestConvertFromProtoToStatusLinkPreviews(t *testing.T) {
 	}
 
 	previews := msg.ConvertFromProtoToStatusLinkPreviews(urlMaker)
-	require.Len(t, previews, 3)
+	require.Len(t, previews, 4)
 
 	// Contact preview
 
@@ -558,6 +606,7 @@ func TestConvertFromProtoToStatusLinkPreviews(t *testing.T) {
 	require.NotNil(t, p1.Contact)
 	require.Nil(t, p1.Community)
 	require.Nil(t, p1.Channel)
+	require.Nil(t, p1.Transaction)
 
 	c1 := p1.Contact
 	require.NotNil(t, c1)
@@ -577,6 +626,7 @@ func TestConvertFromProtoToStatusLinkPreviews(t *testing.T) {
 	require.NotNil(t, p2.Community)
 	require.Nil(t, p2.Contact)
 	require.Nil(t, p2.Channel)
+	require.Nil(t, p2.Transaction)
 
 	c2 := p2.Community
 	require.Equal(t, communityID, c2.CommunityID)
@@ -602,6 +652,7 @@ func TestConvertFromProtoToStatusLinkPreviews(t *testing.T) {
 	require.NotNil(t, p3.Channel)
 	require.Nil(t, p3.Contact)
 	require.Nil(t, p3.Community)
+	require.Nil(t, p3.Transaction)
 
 	c3 := previews[2].Channel
 	require.Equal(t, channel.ChannelUuid, c3.ChannelUUID)
@@ -627,6 +678,20 @@ func TestConvertFromProtoToStatusLinkPreviews(t *testing.T) {
 	require.Equal(t, "", c3.Community.Banner.DataURI)
 	require.Equal(t, "https://localhost:6666/42-https://status.app/cc/-community-channel-banner", c3.Community.Banner.URL)
 
+	p4 := previews[3]
+	require.Equal(t, "https://status.app/tx/", p4.URL)
+	require.NotNil(t, p4.Transaction)
+	require.Nil(t, p4.Contact)
+	require.Nil(t, p4.Community)
+	require.Nil(t, p4.Channel)
+
+	t1 := p4.Transaction
+	require.Equal(t, transaction.TxType, uint32(t1.TxType))
+	require.Equal(t, transaction.Amount, t1.Amount)
+	require.Equal(t, transaction.Asset, t1.Asset)
+	require.Equal(t, transaction.ToAsset, t1.ToAsset)
+	require.Equal(t, transaction.Address, t1.Address)
+	require.Equal(t, transaction.ChainId, uint32(t1.ChainID))
 }
 
 func assertMarshalAndUnmarshalJSON[T any](t *testing.T, obj *T, msgAndArgs ...any) {

protocol/linkpreview_unfurler_status.go

@@ -83,6 +83,17 @@ func (u *StatusUnfurler) buildContactData(publicKey string) (*common.StatusConta
 	return c, nil
 }
 
+func (u *StatusUnfurler) buildTransactionData(urlData *TransactionURLData) (*common.StatusTransactionLinkPreview, error) {
+	return &common.StatusTransactionLinkPreview{
+		TxType:  urlData.TxType,
+		Asset:   urlData.Asset,
+		Amount:  urlData.Amount,
+		Address: urlData.Address,
+		ChainID: urlData.ChainID,
+		ToAsset: urlData.ToAsset,
+	}, nil
+}
+
 func (u *StatusUnfurler) buildCommunityData(communityID string, shard *shard.Shard) (*communities.Community, *common.StatusCommunityLinkPreview, error) {
 	// This automatically checks the database
 	community, err := u.m.FetchCommunity(&FetchCommunityRequest{
@@ -172,5 +183,13 @@ func (u *StatusUnfurler) Unfurl() (*common.StatusLinkPreview, error) {
 		return preview, nil
 	}
 
+	if resp.Transaction != nil {
+		preview.Transaction, err = u.buildTransactionData(resp.Transaction)
+		if err != nil {
+			return nil, fmt.Errorf("error when building transaction data: %w", err)
+		}
+		return preview, nil
+	}
+
 	return nil, fmt.Errorf("shared url does not contain contact, community or channel data")
 }

protocol/protobuf/chat_message.proto

@@ -171,12 +171,22 @@ message UnfurledStatusChannelLink {
   UnfurledStatusCommunityLink community = 6;
 }
 
+message UnfurledStatusTransactionLink {
+    uint32 txType = 1;
+    string address = 2;
+    string amount = 3;
+    string asset = 4;
+    uint32 chainId = 5;
+    string toAsset = 6;
+}
+
 message UnfurledStatusLink {
   string url = 1;
   oneof payload {
     UnfurledStatusContactLink contact = 2;
     UnfurledStatusCommunityLink community = 3;
     UnfurledStatusChannelLink channel = 4;
+    UnfurledStatusTransactionLink transaction = 5;
   }
 }