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imagor_test.go
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package imagor
import (
"bytes"
"context"
"crypto/sha256"
"encoding/json"
"errors"
"fmt"
"github.com/kumparan/imagor/imagorpath"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"go.uber.org/zap"
"io"
"math/rand"
"net/http"
"net/http/httptest"
"strings"
"sync"
"testing"
"time"
)
func TestWithUnsafe(t *testing.T) {
logger := zap.NewExample()
app := New(WithOptions(
WithUnsafe(true),
WithLoaders(loaderFunc(func(r *http.Request, image string) (*Blob, error) {
return NewBlobFromBytes([]byte("foo")), nil
})),
WithLogger(logger),
))
assert.Equal(t, false, app.Debug)
assert.Equal(t, logger, app.Logger)
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/foo.jpg", nil))
assert.Equal(t, 200, w.Code)
w = httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodPost, "https://example.com/unsafe/foo.jpg", nil))
assert.Equal(t, 200, w.Code)
assert.Equal(t, "foo", w.Body.String())
w = httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/foo.jpg", nil))
assert.Equal(t, 403, w.Code)
assert.Equal(t, w.Body.String(), jsonStr(ErrSignatureMismatch))
}
func TestWithInternal(t *testing.T) {
logger := zap.NewExample()
ctx := context.Background()
app := New(WithOptions(
WithLoaders(loaderFunc(func(r *http.Request, image string) (*Blob, error) {
return NewBlobFromBytes([]byte("foo")), nil
})),
WithProcessors(processorFunc(func(ctx context.Context, blob *Blob, p imagorpath.Params, load LoadFunc) (*Blob, error) {
assert.Contains(t, p.Path, p.Image)
assert.Positive(t, p.Width)
assert.Positive(t, p.Height)
return blob, nil
})),
WithLogger(logger),
))
assert.Equal(t, false, app.Debug)
assert.Equal(t, logger, app.Logger)
blob, err := app.Serve(ctx, imagorpath.Params{
Image: "foo.jpg",
Width: 167, Height: 199,
Path: "ghjk",
})
require.NoError(t, err)
buf, err := blob.ReadAll()
assert.Equal(t, "foo", string(buf))
require.NoError(t, err)
blob, err = app.Serve(ctx, imagorpath.Params{
Image: "foo.jpg",
Width: -167, Height: -199,
Path: "ghjk",
})
require.NoError(t, err)
buf, err = blob.ReadAll()
assert.Equal(t, "foo", string(buf))
require.NoError(t, err)
blob, err = app.Serve(nil, imagorpath.Params{
Image: "foo.jpg",
Width: 167, Height: 199,
Path: "ghjk",
})
assert.Empty(t, blob)
assert.Error(t, err)
blob, err = app.ServeBlob(nil, nil, imagorpath.Params{
Image: "foo.jpg",
Width: 167, Height: 199,
Path: "ghjk",
})
assert.Empty(t, blob)
assert.Error(t, err)
blob, err = app.ServeBlob(ctx, NewBlobFromBytes([]byte("asdf")), imagorpath.Params{
Image: "foo.jpg",
Width: 167, Height: 199,
Path: "ghjk",
})
require.NoError(t, err)
buf, err = blob.ReadAll()
assert.Equal(t, "asdf", string(buf))
require.NoError(t, err)
}
func TestWithContentDisposition(t *testing.T) {
logger := zap.NewExample()
app := New(
WithUnsafe(true),
WithLoaders(loaderFunc(func(r *http.Request, image string) (*Blob, error) {
return NewBlobFromFile(image), nil
})),
WithResultStorages(saverFunc(func(ctx context.Context, image string, blob *Blob) error {
assert.NotContains(t, image, "attachment")
return nil
})),
WithLogger(logger))
assert.Equal(t, false, app.Debug)
assert.Equal(t, logger, app.Logger)
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/testdata/gopher.png", nil))
assert.Equal(t, 200, w.Code)
assert.Equal(t, "inline", w.Header().Get("Content-Disposition"))
w = httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/filters:attachment()/testdata/gopher.png", nil))
assert.Equal(t, 200, w.Code)
assert.Equal(t, `attachment; filename="gopher.png"`, w.Header().Get("Content-Disposition"))
w = httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/filters:attachment(foo.png)/testdata/demo1.jpg", nil))
assert.Equal(t, 200, w.Code)
assert.Equal(t, `attachment; filename="foo.png.jpg"`, w.Header().Get("Content-Disposition"))
w = httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/filters:attachment(foo.jpeg)/testdata/demo1.jpg", nil))
assert.Equal(t, 200, w.Code)
assert.Equal(t, `attachment; filename="foo.jpeg"`, w.Header().Get("Content-Disposition"))
}
func TestSuppressDeadlockResolve(t *testing.T) {
ctx := context.Background()
app := New()
f, err := app.suppress(ctx, "a", func(ctx context.Context, _ func(*Blob, error)) (*Blob, error) {
return app.suppress(ctx, "b", func(ctx context.Context, _ func(*Blob, error)) (*Blob, error) {
return app.suppress(ctx, "a", func(ctx context.Context, _ func(*Blob, error)) (*Blob, error) {
return NewEmptyBlob(), nil
})
})
})
assert.Equal(t, NewEmptyBlob(), f)
require.NoError(t, err)
}
func TestSuppressTimeout(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), time.Millisecond*10)
defer cancel()
app := New()
f, err := app.suppress(ctx, "a", func(ctx context.Context, _ func(*Blob, error)) (*Blob, error) {
time.Sleep(time.Second)
return &Blob{}, nil
})
assert.Nil(t, f)
assert.Equal(t, context.DeadlineExceeded, err)
}
func TestSuppressForgetCanceled(t *testing.T) {
n := 10
app := New()
var wg sync.WaitGroup
wg.Add(n * 2)
for i := 0; i < n; i++ {
go func() {
defer wg.Done()
_, err := app.suppress(context.Background(), "a", func(ctx context.Context, _ func(*Blob, error)) (*Blob, error) {
time.Sleep(time.Millisecond)
return NewEmptyBlob(), nil
})
assert.Nil(t, err)
}()
go func() {
defer wg.Done()
_, _ = app.suppress(context.Background(), "a", func(ctx context.Context, _ func(*Blob, error)) (*Blob, error) {
time.Sleep(time.Millisecond)
return nil, context.Canceled
})
}()
}
wg.Wait()
}
func TestWithSigner(t *testing.T) {
app := New(
WithDebug(true),
WithLogger(zap.NewExample()),
WithLoaders(loaderFunc(func(r *http.Request, image string) (*Blob, error) {
return NewBlobFromBytes([]byte("foo")), nil
})),
WithSigner(imagorpath.NewDefaultSigner("1234")))
assert.Equal(t, true, app.Debug)
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/_-19cQt1szHeUV0WyWFntvTImDI=/foo.jpg", nil))
assert.Equal(t, 200, w.Code)
w = httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/_-19cQt1szHeUV0WyWFntvTIm/foo.jpg", nil))
assert.Equal(t, 403, w.Code)
assert.Equal(t, w.Body.String(), jsonStr(ErrSignatureMismatch))
w = httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/foo.jpg", nil))
assert.Equal(t, 403, w.Code)
assert.Equal(t, w.Body.String(), jsonStr(ErrSignatureMismatch))
}
func TestWithCustomSigner(t *testing.T) {
app := New(
WithDebug(true),
WithLogger(zap.NewExample()),
WithLoaders(loaderFunc(func(r *http.Request, image string) (*Blob, error) {
return NewBlobFromBytes([]byte("foo")), nil
})),
WithSigner(imagorpath.NewHMACSigner(sha256.New, 40, "1234")))
assert.Equal(t, true, app.Debug)
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/91DBDJtTFePFnbaj5Qq8JLvq5sM5VTipE685f4Gp/foo.jpg", nil))
assert.Equal(t, 200, w.Code)
w = httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/_-19cQt1szHeUV0WyWFntvTImDI=/foo.jpg", nil))
assert.Equal(t, 403, w.Code)
assert.Equal(t, w.Body.String(), jsonStr(ErrSignatureMismatch))
w = httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/foo.jpg", nil))
assert.Equal(t, 403, w.Code)
assert.Equal(t, w.Body.String(), jsonStr(ErrSignatureMismatch))
}
func TestWithRetryQueryUnescape(t *testing.T) {
opts := WithOptions(
WithDebug(true),
WithLogger(zap.NewExample()),
WithLoaders(loaderFunc(func(r *http.Request, image string) (*Blob, error) {
if image != "gopher.png" {
return nil, ErrInvalid
}
return NewBlobFromBytes([]byte("foo")), nil
})),
WithProcessors(processorFunc(func(ctx context.Context, blob *Blob, p imagorpath.Params, load LoadFunc) (*Blob, error) {
return NewBlobFromBytes([]byte(p.Path)), nil
})),
)
app := New(opts, WithUnsafe(true))
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/filters%3Afill%28red%29/gopher.png", nil))
assert.Equal(t, 200, w.Code)
assert.Equal(t, "filters:fill(red)/gopher.png", w.Body.String())
app = New(opts, WithSigner(imagorpath.NewDefaultSigner("1234")))
w = httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/GSqGN9NrCj-DlGT38BaycScxM9g=/filters%3Afill%28red%29/gopher.png", nil))
assert.Equal(t, 200, w.Code)
assert.Equal(t, "filters:fill(red)/gopher.png", w.Body.String())
}
func TestWithRaw(t *testing.T) {
app := New(
WithDebug(true),
WithUnsafe(true),
WithLogger(zap.NewExample()),
WithLoaders(loaderFunc(func(r *http.Request, image string) (*Blob, error) {
if image != "gopher.png" {
return nil, ErrInvalid
}
blob := NewBlobFromBytes([]byte("foo"))
blob.SetContentType("bar")
return blob, nil
})),
WithProcessors(processorFunc(func(ctx context.Context, blob *Blob, p imagorpath.Params, load LoadFunc) (*Blob, error) {
out := NewBlobFromBytes([]byte(p.Path))
out.SetContentType("boom")
return out, nil
})),
)
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/filters:fill(red)/gopher.png", nil))
assert.Equal(t, 200, w.Code)
assert.Equal(t, "filters:fill(red)/gopher.png", w.Body.String())
assert.Equal(t, "boom", w.Header().Get("Content-Type"))
assert.Empty(t, w.Header().Get("Content-Security-Policy"))
w = httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/filters:fill(red):raw()/gopher.png", nil))
assert.Equal(t, 200, w.Code)
assert.Equal(t, "foo", w.Body.String())
assert.Equal(t, "script-src 'none'", w.Header().Get("Content-Security-Policy"))
assert.Equal(t, "bar", w.Header().Get("Content-Type"))
}
func TestWithOverrideHeader(t *testing.T) {
app := New(
WithDebug(true),
WithUnsafe(true),
WithLogger(zap.NewExample()),
WithLoaders(loaderFunc(func(r *http.Request, image string) (*Blob, error) {
blob := NewBlobFromBytes([]byte("foo"))
blob.SetContentType("bar")
blob.Header = make(http.Header)
blob.Header.Set("Content-Type", "tada")
blob.Header.Set("Foo", "bar")
blob.Header.Set("asdf", "fghj")
return blob, nil
})),
WithProcessors(processorFunc(func(ctx context.Context, blob *Blob, p imagorpath.Params, load LoadFunc) (*Blob, error) {
out := NewBlobFromBytes([]byte("processed"))
out.SetContentType("boom")
return out, nil
})),
)
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/filters:fill(red)/gopher.png", nil))
assert.Equal(t, 200, w.Code)
assert.Equal(t, "processed", w.Body.String())
assert.Equal(t, "tada", w.Header().Get("Content-Type"))
assert.Equal(t, "fghj", w.Header().Get("ASDF"))
}
func TestNewBlobFromPathNotFound(t *testing.T) {
loader := loaderFunc(func(r *http.Request, image string) (*Blob, error) {
return NewBlobFromFile("./non-exists-path"), nil
})
app := New(
WithDebug(true),
WithLogger(zap.NewExample()),
WithUnsafe(true),
WithLoaders(loader))
r := httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/foobar", nil)
w := httptest.NewRecorder()
app.ServeHTTP(w, r)
assert.Equal(t, 404, w.Code)
assert.Equal(t, jsonStr(ErrNotFound), w.Body.String())
app = New(
WithDebug(true),
WithLogger(zap.NewExample()),
WithUnsafe(true),
WithDisableErrorBody(true),
WithLoaders(loader))
r = httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/foobar", nil)
w = httptest.NewRecorder()
app.ServeHTTP(w, r)
assert.Equal(t, 404, w.Code)
assert.Empty(t, w.Body.String())
}
func TestWithDisableErrorBody(t *testing.T) {
app := New(
WithDebug(true),
WithLogger(zap.NewExample()),
WithDisableErrorBody(true),
WithSigner(imagorpath.NewDefaultSigner("1234")))
assert.True(t, app.DisableErrorBody)
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/foo.jpg", nil))
assert.Equal(t, 403, w.Code)
assert.Empty(t, w.Body.String())
}
func TestWithCacheHeaderTTL(t *testing.T) {
loader := loaderFunc(func(r *http.Request, image string) (blob *Blob, err error) {
return NewBlobFromBytes([]byte("ok")), nil
})
t.Run("default", func(t *testing.T) {
app := New(
WithLogger(zap.NewExample()),
WithLoaders(loader),
WithUnsafe(true))
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/foo.jpg", nil))
assert.Equal(t, 200, w.Code)
assert.Equal(t, "public, s-maxage=604800, max-age=604800, no-transform, stale-while-revalidate=86400", w.Header().Get("Cache-Control"))
})
t.Run("custom ttl swr", func(t *testing.T) {
app := New(
WithLogger(zap.NewExample()),
WithCacheHeaderSWR(time.Second*167),
WithCacheHeaderTTL(time.Second*169),
WithLoaders(loader),
WithUnsafe(true))
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/foo.jpg", nil))
assert.Equal(t, 200, w.Code)
assert.Equal(t, "public, s-maxage=169, max-age=169, no-transform, stale-while-revalidate=167", w.Header().Get("Cache-Control"))
})
t.Run("custom ttl swr private", func(t *testing.T) {
app := New(
WithLogger(zap.NewExample()),
WithCacheHeaderSWR(time.Second*167),
WithCacheHeaderTTL(time.Second*169),
WithLoaders(loader),
WithUnsafe(true))
w := httptest.NewRecorder()
r := httptest.NewRequest(http.MethodGet, "https://example.com/unsafe/foo.jpg", nil)
r.Header.Set("Cache-Control", "private")
app.ServeHTTP(w, r)
assert.Equal(t, 200, w.Code)
assert.Equal(t, "private, max-age=169, no-transform, stale-while-revalidate=167", w.Header().Get("Cache-Control"))
})
t.Run("custom ttl no swr", func(t *testing.T) {
app := New(
WithLogger(zap.NewExample()),
WithCacheHeaderSWR(time.Second*169),
WithCacheHeaderTTL(time.Second*169),
WithLoaders(loader),
WithUnsafe(true))
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/foo.jpg", nil))
assert.Equal(t, 200, w.Code)
assert.Equal(t, "public, s-maxage=169, max-age=169, no-transform", w.Header().Get("Cache-Control"))
})
t.Run("no cache", func(t *testing.T) {
app := New(
WithLoaders(loader),
WithCacheHeaderNoCache(true),
WithUnsafe(true))
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/foo.jpg", nil))
assert.Equal(t, 200, w.Code)
assert.NotEmpty(t, w.Header().Get("Expires"))
assert.Equal(t, "private, no-cache, no-store, must-revalidate", w.Header().Get("Cache-Control"))
})
}
func TestExpire(t *testing.T) {
loader := loaderFunc(func(r *http.Request, image string) (blob *Blob, err error) {
return NewBlobFromBytes([]byte("ok")), nil
})
app := New(
WithLogger(zap.NewExample()),
WithCacheHeaderSWR(time.Second*169),
WithCacheHeaderTTL(time.Second*169),
WithLoaders(loader),
WithResultStorages(saverFunc(func(ctx context.Context, image string, blob *Blob) error {
assert.NotContains(t, image, "expire")
return nil
})),
WithUnsafe(true))
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/filters:foo(bar)/foo.jpg", nil))
assert.Equal(t, 200, w.Code)
assert.Equal(t, "public, s-maxage=169, max-age=169, no-transform", w.Header().Get("Cache-Control"))
now := time.Now()
time.Sleep(time.Millisecond)
w = httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet,
fmt.Sprintf("https://example.com/unsafe/filters:expire(%d):foo(bar)/foo.jpg",
now.Add(time.Second).UnixMilli(),
), nil))
assert.Equal(t, 200, w.Code)
assert.Equal(t, "private, max-age=1, no-transform", w.Header().Get("Cache-Control"))
w = httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet,
fmt.Sprintf("https://example.com/unsafe/filters:expire(%d):foo(bar)/foo.jpg",
now.Add(time.Second*170).UnixMilli(),
), nil))
assert.Equal(t, 200, w.Code)
assert.Equal(t, "private, max-age=169, no-transform", w.Header().Get("Cache-Control"))
w = httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet,
fmt.Sprintf("https://example.com/unsafe/filters:expire(%d):foo(bar)/foo.jpg",
now.UnixMilli(),
), nil))
assert.Equal(t, 410, w.Code)
}
func TestVersion(t *testing.T) {
app := New(
WithDebug(true),
WithLogger(zap.NewExample()),
)
r := httptest.NewRequest(
http.MethodGet, "https://example.com/", nil)
w := httptest.NewRecorder()
app.ServeHTTP(w, r)
assert.Equal(t, 200, w.Code)
assert.Contains(t, w.Body.String(), Version)
}
func TestWithBasePathRedirect(t *testing.T) {
app := New(
WithDebug(true),
WithBasePathRedirect("https://www.bar.com"),
WithLogger(zap.NewExample()),
)
r := httptest.NewRequest(
http.MethodGet, "https://foo.com/", nil)
w := httptest.NewRecorder()
app.ServeHTTP(w, r)
assert.Equal(t, http.StatusTemporaryRedirect, w.Code)
assert.Equal(t, "https://www.bar.com", w.Header().Get("Location"))
}
func TestParams(t *testing.T) {
app := New(
WithDebug(true),
WithLogger(zap.NewExample()),
WithSigner(imagorpath.NewDefaultSigner("1234")))
r := httptest.NewRequest(
http.MethodGet, "https://example.com/params/_-19cQt1szHeUV0WyWFntvTImDI=/foo.jpg", nil)
w := httptest.NewRecorder()
app.ServeHTTP(w, r)
assert.Equal(t, 200, w.Code)
buf, _ := json.MarshalIndent(imagorpath.Parse(r.URL.EscapedPath()), "", " ")
assert.Equal(t, string(buf), w.Body.String())
r = httptest.NewRequest(
http.MethodGet, "https://example.com/params/foo.jpg", nil)
w = httptest.NewRecorder()
app.ServeHTTP(w, r)
assert.Equal(t, 200, w.Code)
buf, _ = json.MarshalIndent(imagorpath.Parse(r.URL.EscapedPath()), "", " ")
assert.Equal(t, string(buf), w.Body.String())
app = New(
WithDebug(true),
WithLogger(zap.NewExample()),
WithDisableParamsEndpoint(true),
WithSigner(imagorpath.NewDefaultSigner("1234")))
r = httptest.NewRequest(
http.MethodGet, "https://example.com/params/_-19cQt1szHeUV0WyWFntvTImDI=/foo.jpg", nil)
w = httptest.NewRecorder()
app.ServeHTTP(w, r)
assert.Equal(t, 200, w.Code)
assert.Empty(t, w.Body.String())
}
func TestUseFallbackImageWhenLoadError(t *testing.T) {
loader := loaderFunc(func(r *http.Request, image string) (*Blob, error) {
return NewBlobFromFile("./non-exists-path"), nil
})
placeholderData := `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`
app := New(
WithDebug(true),
WithLogger(zap.NewExample()),
WithUnsafe(true),
WithLoaders(loader),
WithImageErrorFallback(placeholderData))
r := httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/foobar", nil)
w := httptest.NewRecorder()
app.ServeHTTP(w, r)
assert.Equal(t, 200, w.Code)
}
var clock time.Time
type mapStore struct {
l sync.RWMutex
Map map[string]*Blob
ModTime map[string]time.Time
LoadCnt map[string]int
SaveCnt map[string]int
DelCnt map[string]int
}
func newMapStore() *mapStore {
return &mapStore{
Map: map[string]*Blob{}, LoadCnt: map[string]int{}, SaveCnt: map[string]int{},
DelCnt: map[string]int{}, ModTime: map[string]time.Time{},
}
}
func (s *mapStore) Get(r *http.Request, image string) (*Blob, error) {
s.l.RLock()
defer s.l.RUnlock()
buf, ok := s.Map[image]
if !ok {
return nil, ErrNotFound
}
buf.Stat, _ = s.Stat(r.Context(), image)
s.LoadCnt[image] = s.LoadCnt[image] + 1
return buf, nil
}
func (s *mapStore) Put(ctx context.Context, image string, blob *Blob) error {
s.l.Lock()
defer s.l.Unlock()
clock = clock.Add(1)
s.Map[image] = blob
s.SaveCnt[image] = s.SaveCnt[image] + 1
s.ModTime[image] = clock
return nil
}
func (s *mapStore) Delete(ctx context.Context, image string) error {
s.l.Lock()
defer s.l.Unlock()
delete(s.Map, image)
s.DelCnt[image] = s.DelCnt[image] + 1
return nil
}
func (s *mapStore) Stat(ctx context.Context, image string) (*Stat, error) {
s.l.RLock()
defer s.l.RUnlock()
t, ok := s.ModTime[image]
if !ok {
return nil, ErrNotFound
}
b, ok := s.Map[image]
if !ok {
return nil, ErrNotFound
}
return &Stat{
ModifiedTime: t,
Size: b.Size(),
}, nil
}
func TestWithLoadersStoragesProcessors(t *testing.T) {
store := newMapStore()
resultStore := newMapStore()
newFakeBlob := func(str string) *Blob {
return NewBlob(func() (io.ReadCloser, int64, error) {
return io.NopCloser(bytes.NewReader([]byte(str))), 0, nil
})
}
app := New(
WithDebug(true), WithLogger(zap.NewExample()),
WithLoaders(
loaderFunc(func(r *http.Request, image string) (*Blob, error) {
if image == "foo" {
return newFakeBlob("bar"), nil
}
if image == "bar" {
return newFakeBlob("foo"), nil
}
if image == "ping" {
return newFakeBlob("pong"), nil
}
if image == "empty" {
return nil, nil
}
return nil, ErrNotFound
}),
loaderFunc(func(r *http.Request, image string) (*Blob, error) {
if image == "beep" {
return newFakeBlob("boop"), nil
}
if image == "boom" {
return nil, errors.New("unexpected error")
}
if image == "poop" {
return newFakeBlob("poop"), nil
}
if image == "bond" {
return newFakeBlob("bond"), nil
}
if image == "timeout" {
return newFakeBlob("timeout"), nil
}
if image == "dood" {
return newFakeBlob("dood"), errors.New("error with value")
}
return nil, ErrNotFound
}),
),
WithStorages(
store,
saverFunc(func(ctx context.Context, image string, buf *Blob) error {
time.Sleep(time.Millisecond * 2)
require.NotEqual(t, "dood", image, "should not save error")
assert.Error(t, context.DeadlineExceeded, ctx.Err())
return ctx.Err()
}),
),
WithResultStorages(resultStore),
WithProcessors(
processorFunc(func(ctx context.Context, blob *Blob, p imagorpath.Params, load LoadFunc) (*Blob, error) {
buf, _ := blob.ReadAll()
if string(buf) == "bar" {
p.Width = 167
return newFakeBlob("tar"), ErrForward{p}
}
if string(buf) == "poop" {
p.Height = 169
return nil, ErrForward{p}
}
if string(buf) == "bond" {
return nil, ErrInternal
}
if string(buf) == "foo" {
file, err := load("foo")
if err != nil {
return nil, err
}
return file, err
}
return blob, nil
}),
processorFunc(func(ctx context.Context, blob *Blob, p imagorpath.Params, load LoadFunc) (*Blob, error) {
buf, _ := blob.ReadAll()
if string(buf) == "tar" {
b := newFakeBlob(imagorpath.GeneratePath(p))
return b, nil
}
if string(buf) == "poop" {
assert.Equal(t, 169, p.Height)
return nil, ErrForward{}
}
if string(buf) == "bond" {
return nil, ErrInvalid
}
return blob, nil
}),
),
WithSaveTimeout(time.Millisecond),
WithProcessTimeout(time.Second),
WithUnsafe(true),
)
require.NoError(t, app.Startup(context.Background()))
assert.Equal(t, time.Second, app.ProcessTimeout)
assert.Equal(t, time.Millisecond, app.SaveTimeout)
defer require.NoError(t, app.Shutdown(context.Background()))
t.Parallel()
for i := 0; i < 2; i++ {
t.Run(fmt.Sprintf("ok %d", i), func(t *testing.T) {
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/foo", nil))
time.Sleep(time.Millisecond * 10)
assert.Equal(t, 200, w.Code)
assert.Equal(t, "167x0/foo", w.Body.String())
w = httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/bar", nil))
time.Sleep(time.Millisecond * 10)
assert.Equal(t, 200, w.Code)
assert.Equal(t, "bar", w.Body.String())
w = httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/ping", nil))
time.Sleep(time.Millisecond * 10)
assert.Equal(t, 200, w.Code)
assert.Equal(t, "pong", w.Body.String())
time.Sleep(time.Millisecond * 10) // make sure storage reached
require.NotNil(t, store.Map["ping"])
buf, err := store.Map["ping"].ReadAll()
require.NoError(t, err)
assert.Equal(t, "pong", string(buf))
})
t.Run(fmt.Sprintf("not found on empty path %d", i), func(t *testing.T) {
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/", nil))
time.Sleep(time.Millisecond * 10)
assert.Equal(t, 404, w.Code)
assert.Equal(t, jsonStr(ErrNotFound), w.Body.String())
})
t.Run(fmt.Sprintf("empty %d", i), func(t *testing.T) {
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/empty", nil))
time.Sleep(time.Millisecond * 10)
assert.Equal(t, 404, w.Code)
assert.Equal(t, jsonStr(ErrNotFound), w.Body.String())
assert.Nil(t, store.Map["empty"])
})
t.Run(fmt.Sprintf("not found on pass %d", i), func(t *testing.T) {
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/boooo", nil))
time.Sleep(time.Millisecond * 10)
assert.Equal(t, 404, w.Code)
assert.Equal(t, jsonStr(ErrNotFound), w.Body.String())
})
t.Run(fmt.Sprintf("unexpected error %d", i), func(t *testing.T) {
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/boom", nil))
time.Sleep(time.Millisecond * 10)
assert.Equal(t, 500, w.Code)
assert.Equal(t, jsonStr(NewError("unexpected error", 500)), w.Body.String())
assert.Nil(t, store.Map["boom"])
})
t.Run(fmt.Sprintf("error with value %d", i), func(t *testing.T) {
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/dood", nil))
time.Sleep(time.Millisecond * 10)
assert.Equal(t, 500, w.Code)
assert.Equal(t, jsonStr(NewError("error with value", 500)), w.Body.String())
assert.Nil(t, store.Map["dood"])
})
t.Run(fmt.Sprintf("processor error return original %d", i), func(t *testing.T) {
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/poop", nil))
time.Sleep(time.Millisecond * 10)
assert.Equal(t, ErrUnsupportedFormat.Code, w.Code)
assert.Equal(t, jsonStr(ErrUnsupportedFormat), w.Body.String())
assert.Nil(t, store.Map["poop"])
})
t.Run(fmt.Sprintf("processor error return last error %d", i), func(t *testing.T) {
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/bond", nil))
time.Sleep(time.Millisecond * 10)
assert.Equal(t, ErrInternal.Code, w.Code)
assert.Equal(t, jsonStr(ErrInternal), w.Body.String())
assert.Nil(t, store.Map["bond"])
})
}
}
func TestWithResultStorageNotModified(t *testing.T) {
resultStore := newMapStore()
app := New(
WithDebug(true),
WithLogger(zap.NewExample()),
WithResultStorages(resultStore),
WithLoaders(loaderFunc(func(r *http.Request, image string) (*Blob, error) {
return NewBlobFromBytes([]byte(image)), nil
})),
WithUnsafe(true),
)
w := httptest.NewRecorder()
r := httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/foo", nil)
app.ServeHTTP(w, r)
time.Sleep(time.Millisecond * 10) // make sure storage reached
assert.Equal(t, 200, w.Code)
assert.Equal(t, "foo", w.Body.String())
assert.Empty(t, w.Header().Get("ETag"))
w = httptest.NewRecorder()
r = httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/foo", nil)
app.ServeHTTP(w, r)
assert.Equal(t, 200, w.Code)
assert.Equal(t, "foo", w.Body.String())
etag := w.Header().Get("ETag")
lastModified := w.Header().Get("Last-Modified")
assert.NotEmpty(t, etag)
assert.NotEmpty(t, lastModified)
w = httptest.NewRecorder()
r = httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/foo", nil)
r.Header.Set("If-None-Match", etag)
app.ServeHTTP(w, r)
assert.Equal(t, 304, w.Code)
assert.Empty(t, w.Body.String())
w = httptest.NewRecorder()
r = httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/foo", nil)
r.Header.Set("If-None-Match", etag)
r.Header.Set("Cache-Control", "no-cache")
app.ServeHTTP(w, r)
assert.Equal(t, 200, w.Code)
assert.Equal(t, "foo", w.Body.String())
w = httptest.NewRecorder()
r = httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/foo", nil)
r.Header.Set("If-None-Match", "abcd")
app.ServeHTTP(w, r)
assert.Equal(t, 200, w.Code)
assert.Equal(t, "foo", w.Body.String())
w = httptest.NewRecorder()
r = httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/foo", nil)
r.Header.Set("If-Modified-Since", clock.Add(time.Hour).Format(http.TimeFormat))
app.ServeHTTP(w, r)
assert.Equal(t, 304, w.Code)
assert.Empty(t, w.Body.String())
w = httptest.NewRecorder()
r = httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/foo", nil)
r.Header.Set("If-Modified-Since", time.Time{}.Format(http.TimeFormat))
app.ServeHTTP(w, r)
assert.Equal(t, 200, w.Code)
assert.Equal(t, "foo", w.Body.String())
w = httptest.NewRecorder()
r = httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/foo", nil)
r.Header.Set("If-Unmodified-Since", time.Time{}.Format(http.TimeFormat))
app.ServeHTTP(w, r)
assert.Equal(t, 304, w.Code)
assert.Empty(t, w.Body.String())
}
type storageKeyFunc func(img string) string
func (fn storageKeyFunc) Hash(img string) string {
return fn(img)
}
type resultKeyFunc func(p imagorpath.Params) string
func (fn resultKeyFunc) HashResult(p imagorpath.Params) string {
return fn(p)
}
func TestWithResultStorageHasher(t *testing.T) {
store := newMapStore()
resultStore := newMapStore()
app := New(
WithDebug(true), WithLogger(zap.NewExample()),
WithStorages(store),
WithResultStorages(resultStore),
WithLoaders(loaderFunc(func(r *http.Request, image string) (*Blob, error) {
return NewBlobFromBytes([]byte(image)), nil
})),
WithResultStoragePathStyle(resultKeyFunc(func(p imagorpath.Params) string {
if strings.Contains(p.Path, "bar") {
return ""
}
return "prefix:" + strings.TrimPrefix(p.Path, "meta/")
})),
WithUnsafe(true),
WithModifiedTimeCheck(true),
)
w := httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/foo", nil))
time.Sleep(time.Millisecond * 10) // make sure storage reached
assert.Equal(t, 200, w.Code)
assert.Equal(t, "foo", w.Body.String())
w = httptest.NewRecorder()
app.ServeHTTP(w, httptest.NewRequest(
http.MethodGet, "https://example.com/unsafe/foo", nil))
time.Sleep(time.Millisecond * 10) // make sure storage reached
assert.Equal(t, 200, w.Code)
assert.Equal(t, "foo", w.Body.String())
assert.Equal(t, 0, store.LoadCnt["foo"])