Files
vikunja/pkg/models/task_attachment_test.go
kolaente be0aaa7060 fix: adapt image preview DoS protection to new FileStorage interface
File.File is now io.ReadCloser (no Seek). Buffer the file bytes
once via io.ReadAll, then use bytes.NewReader for both DecodeConfig
and Decode. Test updated to use io.NopCloser instead of afero.
2026-03-20 11:34:41 +00:00

298 lines
7.9 KiB
Go

// Vikunja is a to-do list application to facilitate your life.
// Copyright 2018-present Vikunja and contributors. All rights reserved.
//
// 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 <https://www.gnu.org/licenses/>.
package models
import (
"bytes"
"image"
"image/png"
"io"
"os"
"testing"
"code.vikunja.io/api/pkg/db"
"code.vikunja.io/api/pkg/files"
"code.vikunja.io/api/pkg/user"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestTaskAttachment_ReadOne(t *testing.T) {
u := &user.User{ID: 1}
t.Run("Normal File", func(t *testing.T) {
db.LoadAndAssertFixtures(t)
s := db.NewSession()
defer s.Close()
files.InitTestFileFixtures(t)
ta := &TaskAttachment{
ID: 1,
}
err := ta.ReadOne(s, u)
require.NoError(t, err)
assert.NotNil(t, ta.File)
assert.True(t, ta.File.ID == ta.FileID && ta.FileID != 0)
// Load the actual attachment file and check its content
err = ta.File.LoadFileByID()
require.NoError(t, err)
// Validate the file exists at the expected storage path
stat, err := files.FileStat(ta.File)
require.NoError(t, err)
assert.NotNil(t, stat)
content := make([]byte, 9)
read, err := ta.File.File.Read(content)
require.NoError(t, err)
assert.Equal(t, 9, read)
assert.Equal(t, []byte("testfile1"), content)
})
t.Run("Nonexisting Attachment", func(t *testing.T) {
db.LoadAndAssertFixtures(t)
s := db.NewSession()
defer s.Close()
files.InitTestFileFixtures(t)
ta := &TaskAttachment{
ID: 9999,
}
err := ta.ReadOne(s, u)
require.Error(t, err)
assert.True(t, IsErrTaskAttachmentDoesNotExist(err))
})
t.Run("Existing Attachment, Nonexisting File", func(t *testing.T) {
db.LoadAndAssertFixtures(t)
s := db.NewSession()
defer s.Close()
files.InitTestFileFixtures(t)
ta := &TaskAttachment{
ID: 2,
}
err := ta.ReadOne(s, u)
require.Error(t, err)
require.EqualError(t, err, "file 9999 does not exist")
})
}
func TestTaskAttachment_NewAttachment(t *testing.T) {
db.LoadAndAssertFixtures(t)
s := db.NewSession()
defer s.Close()
files.InitTestFileFixtures(t)
// Assert the file is being stored correctly
ta := TaskAttachment{
TaskID: 1,
}
testuser := &user.User{ID: 1}
err := ta.NewAttachment(s, bytes.NewReader([]byte("testingstuff")), "testfile", 100, testuser)
require.NoError(t, err)
assert.NotEqual(t, 0, ta.FileID)
_, err = files.FileStat(ta.File)
require.NoError(t, err)
assert.False(t, os.IsNotExist(err))
assert.Equal(t, testuser.ID, ta.CreatedByID)
// Commit so that LoadFileMetaByID (which reads via the global engine) can see the data
err = s.Commit()
require.NoError(t, err)
// Check the file was inserted correctly
ta.File = &files.File{ID: ta.FileID}
err = ta.File.LoadFileMetaByID()
require.NoError(t, err)
assert.Equal(t, testuser.ID, ta.File.CreatedByID)
assert.Equal(t, "testfile", ta.File.Name)
assert.Equal(t, uint64(100), ta.File.Size)
assert.NotEmpty(t, ta.File.Mime, "mime type should be detected and stored")
// Extra test for max size test
}
func TestTaskAttachment_ReadAll(t *testing.T) {
db.LoadAndAssertFixtures(t)
s := db.NewSession()
defer s.Close()
files.InitTestFileFixtures(t)
ta := &TaskAttachment{TaskID: 1}
as, _, _, err := ta.ReadAll(s, &user.User{ID: 1}, "", 0, 50)
attachments, _ := as.([]*TaskAttachment)
require.NoError(t, err)
assert.Len(t, attachments, 3)
assert.Equal(t, "test", attachments[0].File.Name)
for _, a := range attachments {
assert.NotNil(t, a.CreatedBy)
}
assert.Equal(t, int64(-2), attachments[2].CreatedByID)
assert.Equal(t, int64(-2), attachments[2].CreatedBy.ID)
}
func TestTaskAttachment_Delete(t *testing.T) {
u := &user.User{ID: 1}
t.Run("Normal", func(t *testing.T) {
files.InitTestFileFixtures(t)
db.LoadAndAssertFixtures(t)
s := db.NewSession()
defer s.Close()
ta := &TaskAttachment{ID: 1}
err := ta.Delete(s, u)
require.NoError(t, err)
// Check if the file itself was deleted
_, err = files.FileStat(ta.File) // The new file has the id 2 since it's the second attachment
require.Error(t, err)
assert.True(t, os.IsNotExist(err))
})
t.Run("Nonexisting", func(t *testing.T) {
files.InitTestFileFixtures(t)
db.LoadAndAssertFixtures(t)
s := db.NewSession()
defer s.Close()
ta := &TaskAttachment{ID: 9999}
err := ta.Delete(s, u)
require.Error(t, err)
assert.True(t, IsErrTaskAttachmentDoesNotExist(err))
})
t.Run("Existing attachment, nonexisting file", func(t *testing.T) {
files.InitTestFileFixtures(t)
db.LoadAndAssertFixtures(t)
s := db.NewSession()
defer s.Close()
ta := &TaskAttachment{ID: 2}
err := ta.Delete(s, u)
require.NoError(t, err)
})
}
func TestAttachmentPreviewRejectsLargeImages(t *testing.T) {
// Create a 10000x10000 pixel image (100M pixels, well above the 50M limit)
// As a PNG this is small on disk but huge when decoded into memory
img := image.NewNRGBA(image.Rect(0, 0, 10000, 10000))
var buf bytes.Buffer
err := png.Encode(&buf, img)
require.NoError(t, err)
attachment := &TaskAttachment{
ID: 999999,
File: &files.File{
File: io.NopCloser(bytes.NewReader(buf.Bytes())),
},
}
result := attachment.GetPreview(PreviewMedium)
assert.Nil(t, result, "Preview should be nil for images exceeding max pixel count")
}
func TestTaskAttachment_Permissions(t *testing.T) {
u := &user.User{ID: 1}
t.Run("Can Read", func(t *testing.T) {
t.Run("Allowed", func(t *testing.T) {
db.LoadAndAssertFixtures(t)
s := db.NewSession()
defer s.Close()
ta := &TaskAttachment{TaskID: 1}
can, _, err := ta.CanRead(s, u)
require.NoError(t, err)
assert.True(t, can)
})
t.Run("Forbidden", func(t *testing.T) {
db.LoadAndAssertFixtures(t)
s := db.NewSession()
defer s.Close()
ta := &TaskAttachment{TaskID: 14}
can, _, err := ta.CanRead(s, u)
require.NoError(t, err)
assert.False(t, can)
})
})
t.Run("Can Delete", func(t *testing.T) {
t.Run("Allowed", func(t *testing.T) {
db.LoadAndAssertFixtures(t)
s := db.NewSession()
defer s.Close()
ta := &TaskAttachment{TaskID: 1}
can, err := ta.CanDelete(s, u)
require.NoError(t, err)
assert.True(t, can)
})
t.Run("Forbidden, no access", func(t *testing.T) {
db.LoadAndAssertFixtures(t)
s := db.NewSession()
defer s.Close()
ta := &TaskAttachment{TaskID: 14}
can, err := ta.CanDelete(s, u)
require.NoError(t, err)
assert.False(t, can)
})
t.Run("Forbidden, shared read only", func(t *testing.T) {
db.LoadAndAssertFixtures(t)
s := db.NewSession()
defer s.Close()
ta := &TaskAttachment{TaskID: 15}
can, err := ta.CanDelete(s, u)
require.NoError(t, err)
assert.False(t, can)
})
})
t.Run("Can Create", func(t *testing.T) {
t.Run("Allowed", func(t *testing.T) {
db.LoadAndAssertFixtures(t)
s := db.NewSession()
defer s.Close()
ta := &TaskAttachment{TaskID: 1}
can, err := ta.CanCreate(s, u)
require.NoError(t, err)
assert.True(t, can)
})
t.Run("Forbidden, no access", func(t *testing.T) {
db.LoadAndAssertFixtures(t)
s := db.NewSession()
defer s.Close()
ta := &TaskAttachment{TaskID: 14}
can, err := ta.CanCreate(s, u)
require.NoError(t, err)
assert.False(t, can)
})
t.Run("Forbidden, shared read only", func(t *testing.T) {
db.LoadAndAssertFixtures(t)
s := db.NewSession()
defer s.Close()
ta := &TaskAttachment{TaskID: 15}
can, err := ta.CanCreate(s, u)
require.NoError(t, err)
assert.False(t, can)
})
})
}