[feature] Media cleanup endpoint (#560)

Adds an admin endpoint to trigger a remote media cleanup.

Fixed #348

Signed-off-by: Sashanoraa <sasha@noraa.gay>

3 files changed, 226 insertions, 0 deletions

diff --git a/internal/api/client/admin/admin.go b/internal/api/client/admin/admin.go
index 7cf2c9bfc..2044c4ab0 100644
--- a/internal/api/client/admin/admin.go
+++ b/internal/api/client/admin/admin.go
@@ -41,6 +41,7 @@ const (
 	AccountsPathWithID = AccountsPath + "/:" + IDKey
 	// AccountsActionPath is used for taking action on a single account.
 	AccountsActionPath = AccountsPathWithID + "/action"
+	MediaCleanupPath   = BasePath + "/media_cleanup"
 
 	// ExportQueryKey is for requesting a public export of some data.
 	ExportQueryKey = "export"
@@ -70,5 +71,6 @@ func (m *Module) Route(r router.Router) error {
 	r.AttachHandler(http.MethodGet, DomainBlocksPathWithID, m.DomainBlockGETHandler)
 	r.AttachHandler(http.MethodDelete, DomainBlocksPathWithID, m.DomainBlockDELETEHandler)
 	r.AttachHandler(http.MethodPost, AccountsActionPath, m.AccountActionPOSTHandler)
+	r.AttachHandler(http.MethodPost, MediaCleanupPath, m.MediaCleanupPOSTHandler)
 	return nil
 }
diff --git a/internal/api/client/admin/mediacleanup.go b/internal/api/client/admin/mediacleanup.go
new file mode 100644
index 000000000..0a8852ff3
--- /dev/null
+++ b/internal/api/client/admin/mediacleanup.go
@@ -0,0 +1,110 @@
+/*
+   GoToSocial
+   Copyright (C) 2021-2022 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 admin
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"github.com/sirupsen/logrus"
+	"github.com/spf13/viper"
+	"github.com/superseriousbusiness/gotosocial/internal/api/model"
+	"github.com/superseriousbusiness/gotosocial/internal/config"
+	"github.com/superseriousbusiness/gotosocial/internal/oauth"
+)
+
+// MediaCleanupPOSTHandler swagger:operation POST /api/v1/admin/media_cleanup mediaCleanup
+//
+// Clean up remote media older than the specified number of days.
+//
+// ---
+// tags:
+// - admin
+//
+// consumes:
+// - application/json
+// - application/xml
+// - application/x-www-form-urlencoded
+//
+// produces:
+// - application/json
+//
+// security:
+// - OAuth2 Bearer:
+//   - admin
+//
+// responses:
+//   '200':
+//     description: |-
+//      Echos the number of days requested. The cleanup is performed asynchronously after the request completes.
+//   '403':
+//      description: forbidden
+//   '400':
+//      description: bad request
+func (m *Module) MediaCleanupPOSTHandler(c *gin.Context) {
+	l := logrus.WithFields(logrus.Fields{
+		"func":        "MediaCleanupPOSTHandler",
+		"request_uri": c.Request.RequestURI,
+		"user_agent":  c.Request.UserAgent(),
+		"origin_ip":   c.ClientIP(),
+	})
+
+	// make sure we're authed...
+	authed, err := oauth.Authed(c, true, true, true, true)
+	if err != nil {
+		l.Debugf("couldn't auth: %s", err)
+		c.JSON(http.StatusUnauthorized, gin.H{"error": err.Error()})
+		return
+	}
+
+	// with an admin account
+	if !authed.User.Admin {
+		l.Debugf("user %s not an admin", authed.User.ID)
+		c.JSON(http.StatusForbidden, gin.H{"error": "not an admin"})
+		return
+	}
+
+	// extract the form from the request context
+	l.Tracef("parsing request form: %+v", c.Request.Form)
+	form := &model.MediaCleanupRequest{}
+	if err := c.ShouldBind(form); err != nil {
+		l.Debugf("error parsing form %+v: %s", c.Request.Form, err)
+		c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("could not parse form: %s", err)})
+		return
+	}
+
+	var remoteCacheDays int
+	if form.RemoteCacheDays == nil {
+		remoteCacheDays = viper.GetInt(config.Keys.MediaRemoteCacheDays)
+	} else {
+		remoteCacheDays = *form.RemoteCacheDays
+	}
+	if remoteCacheDays < 0 {
+		remoteCacheDays = 0
+	}
+
+	if errWithCode := m.processor.AdminMediaRemotePrune(c.Request.Context(), remoteCacheDays); errWithCode != nil {
+		l.Debugf("error starting prune of remote media: %s", errWithCode.Error())
+		c.JSON(errWithCode.Code(), gin.H{"error": errWithCode.Safe()})
+		return
+	}
+
+	c.JSON(http.StatusOK, remoteCacheDays)
+}
diff --git a/internal/api/client/admin/mediacleanup_test.go b/internal/api/client/admin/mediacleanup_test.go
new file mode 100644
index 000000000..449777541
--- /dev/null
+++ b/internal/api/client/admin/mediacleanup_test.go
@@ -0,0 +1,114 @@
+/*
+   GoToSocial
+   Copyright (C) 2021-2022 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 admin_test
+
+import (
+	"context"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+
+	"github.com/stretchr/testify/suite"
+	"github.com/superseriousbusiness/gotosocial/internal/api/client/admin"
+)
+
+type MediaCleanupTestSuite struct {
+	AdminStandardTestSuite
+}
+
+func (suite *MediaCleanupTestSuite) TestMediaCleanup() {
+	testAttachment := suite.testAttachments["remote_account_1_status_1_attachment_2"]
+	suite.True(testAttachment.Cached)
+
+	// set up the request
+	recorder := httptest.NewRecorder()
+	ctx := suite.newContext(recorder, http.MethodPost, []byte("{\"remote_cache_days\": 1}"), admin.EmojiPath, "application/json")
+
+	// call the handler
+	suite.adminModule.MediaCleanupPOSTHandler(ctx)
+
+	// we should have OK because our request was valid
+	suite.Equal(http.StatusOK, recorder.Code)
+
+	// Wait for async task to finish
+	time.Sleep(1 * time.Second)
+
+	// Get media we prunes
+	prunedAttachment, err := suite.db.GetAttachmentByID(context.Background(), testAttachment.ID)
+	suite.NoError(err)
+
+	// the media should no longer be cached
+	suite.False(prunedAttachment.Cached)
+}
+
+func (suite *MediaCleanupTestSuite) TestMediaCleanupNoArg() {
+	testAttachment := suite.testAttachments["remote_account_1_status_1_attachment_2"]
+	suite.True(testAttachment.Cached)
+	println("TIME: ", testAttachment.CreatedAt.String())
+
+	// set up the request
+	recorder := httptest.NewRecorder()
+	ctx := suite.newContext(recorder, http.MethodPost, []byte("{}"), admin.EmojiPath, "application/json")
+
+	// call the handler
+	suite.adminModule.MediaCleanupPOSTHandler(ctx)
+
+	// we should have OK because our request was valid
+	suite.Equal(http.StatusOK, recorder.Code)
+
+	// Wait for async task to finish
+	time.Sleep(1 * time.Second)
+
+	// Get media we prunes
+	prunedAttachment, err := suite.db.GetAttachmentByID(context.Background(), testAttachment.ID)
+	suite.NoError(err)
+
+	// the media should no longer be cached
+	suite.True(prunedAttachment.Cached)
+}
+
+func (suite *MediaCleanupTestSuite) TestMediaCleanupNotOldEnough() {
+	testAttachment := suite.testAttachments["remote_account_1_status_1_attachment_2"]
+	suite.True(testAttachment.Cached)
+
+	// set up the request
+	recorder := httptest.NewRecorder()
+	ctx := suite.newContext(recorder, http.MethodPost, []byte("{\"remote_cache_days\": 3}"), admin.EmojiPath, "application/json")
+
+	// call the handler
+	suite.adminModule.MediaCleanupPOSTHandler(ctx)
+
+	// we should have OK because our request was valid
+	suite.Equal(http.StatusOK, recorder.Code)
+
+	// Wait for async task to finish
+	time.Sleep(1 * time.Second)
+
+	// Get media we prunes
+	prunedAttachment, err := suite.db.GetAttachmentByID(context.Background(), testAttachment.ID)
+	suite.NoError(err)
+
+	// the media should still be cached
+	suite.True(prunedAttachment.Cached)
+}
+
+func TestMediaCleanupTestSuite(t *testing.T) {
+	suite.Run(t, &MediaCleanupTestSuite{})
+}