rework media processing a little bit (#191)

* rework media processing a little bit

* review changes

1 files changed, 122 insertions, 0 deletions

diff --git a/internal/ap/extractattachments_test.go b/internal/ap/extractattachments_test.go
new file mode 100644
index 000000000..ea396fae5
--- /dev/null
+++ b/internal/ap/extractattachments_test.go
@@ -0,0 +1,122 @@
+/*
+   GoToSocial
+   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package ap_test
+
+import (
+	"testing"
+
+	"github.com/go-fed/activity/streams"
+	"github.com/go-fed/activity/streams/vocab"
+	"github.com/stretchr/testify/suite"
+	"github.com/superseriousbusiness/gotosocial/internal/ap"
+	"github.com/superseriousbusiness/gotosocial/testrig"
+)
+
+func document1() vocab.ActivityStreamsDocument {
+	document1 := streams.NewActivityStreamsDocument()
+
+	document1MediaType := streams.NewActivityStreamsMediaTypeProperty()
+	document1MediaType.Set("image/jpeg")
+	document1.SetActivityStreamsMediaType(document1MediaType)
+
+	document1URL := streams.NewActivityStreamsUrlProperty()
+	document1URL.AppendIRI(testrig.URLMustParse("https://s3-us-west-2.amazonaws.com/plushcity/media_attachments/files/106/867/380/219/163/828/original/88e8758c5f011439.jpg"))
+	document1.SetActivityStreamsUrl(document1URL)
+
+	document1Name := streams.NewActivityStreamsNameProperty()
+	document1Name.AppendXMLSchemaString("It's a cute plushie.")
+	document1.SetActivityStreamsName(document1Name)
+
+	document1Blurhash := streams.NewTootBlurhashProperty()
+	document1Blurhash.Set("UxQ0EkRP_4tRxtRjWBt7%hozM_ayV@oLf6WB")
+	document1.SetTootBlurhash(document1Blurhash)
+
+	return document1
+}
+
+func attachment1() vocab.ActivityStreamsAttachmentProperty {
+	attachment1 := streams.NewActivityStreamsAttachmentProperty()
+	attachment1.AppendActivityStreamsDocument(document1())
+	return attachment1
+}
+
+type ExtractTestSuite struct {
+	suite.Suite
+}
+
+func (suite *ExtractTestSuite) TestExtractAttachments() {
+	note := streams.NewActivityStreamsNote()
+	note.SetActivityStreamsAttachment(attachment1())
+
+	attachments, err := ap.ExtractAttachments(note)
+	suite.NoError(err)
+	suite.Len(attachments, 1)
+
+	attachment1 := attachments[0]
+	suite.Equal("image/jpeg", attachment1.File.ContentType)
+	suite.Equal("https://s3-us-west-2.amazonaws.com/plushcity/media_attachments/files/106/867/380/219/163/828/original/88e8758c5f011439.jpg", attachment1.RemoteURL)
+	suite.Equal("It's a cute plushie.", attachment1.Description)
+	suite.Empty(attachment1.Blurhash) // atm we discard blurhashes and generate them ourselves during processing
+}
+
+func (suite *ExtractTestSuite) TestExtractNoAttachments() {
+	note := streams.NewActivityStreamsNote()
+
+	attachments, err := ap.ExtractAttachments(note)
+	suite.NoError(err)
+	suite.Empty(attachments)
+}
+
+func (suite *ExtractTestSuite) TestExtractAttachmentsMissingContentType() {
+	d1 := document1()
+	d1.SetActivityStreamsMediaType(streams.NewActivityStreamsMediaTypeProperty())
+
+	a1 := streams.NewActivityStreamsAttachmentProperty()
+	a1.AppendActivityStreamsDocument(d1)
+
+	note := streams.NewActivityStreamsNote()
+	note.SetActivityStreamsAttachment(a1)
+
+	attachments, err := ap.ExtractAttachments(note)
+	suite.NoError(err)
+	suite.Empty(attachments)
+}
+
+func (suite *ExtractTestSuite) TestExtractAttachmentMissingContentType() {
+
+	d1 := document1()
+	d1.SetActivityStreamsMediaType(streams.NewActivityStreamsMediaTypeProperty())
+
+	attachment, err := ap.ExtractAttachment(d1)
+	suite.EqualError(err, "no media type")
+	suite.Nil(attachment)
+}
+
+func (suite *ExtractTestSuite) TestExtractAttachmentMissingURL() {
+	d1 := document1()
+	d1.SetActivityStreamsUrl(streams.NewActivityStreamsUrlProperty())
+
+	attachment, err := ap.ExtractAttachment(d1)
+	suite.EqualError(err, "could not extract url")
+	suite.Nil(attachment)
+}
+
+func TestExtractTestSuite(t *testing.T) {
+	suite.Run(t, &ExtractTestSuite{})
+}