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feat(ExifTool): add capability to overwrite metadata of the PDF generated (#776)

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* add new metadata functions to pdf engine interface

* add exiftool module with relevant test cases

* use exiftool to overwrite metadata in libreoffice

* use exiftool to overwrite metadata in chromium

* fix linter issues

* fix more linter issues

* more test cases for better coverage

* remove utils

* minor changes

* remove metadata from pdfoptions

* correct indentation

* read/write metadata one file at a time.
This commit is contained in:
Piyush Srivastava
2024-02-16 18:46:50 +00:00
committed by Julien Neuhart
parent 31e7582216
commit 71911cb1a7
24 changed files with 1433 additions and 39 deletions
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166
pkg/modules/pdfengines/multi_test.go
View File

@@ -177,3 +177,169 @@ func TestMultiPdfEngines_Convert(t *testing.T) {
})
}
}
func TestMultiPdfEngines_ReadMetadata(t *testing.T) {
for _, tc := range []struct {
scenario string
engine *multiPdfEngines
ctx context.Context
expectError bool
}{
{
scenario: "nominal behavior",
engine: newMultiPdfEngines(
&gotenberg.PdfEngineMock{
ReadMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string, metadata map[string]interface{}) error {
return nil
},
},
),
ctx: context.Background(),
},
{
scenario: "at least one engine does not return an error",
engine: newMultiPdfEngines(
&gotenberg.PdfEngineMock{
ReadMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string, metadata map[string]interface{}) error {
return errors.New("foo")
},
},
&gotenberg.PdfEngineMock{
ReadMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string, metadata map[string]interface{}) error {
return nil
},
},
),
ctx: context.Background(),
},
{
scenario: "all engines return an error",
engine: newMultiPdfEngines(
&gotenberg.PdfEngineMock{
ReadMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string, metadata map[string]interface{}) error {
return errors.New("foo")
},
},
&gotenberg.PdfEngineMock{
ReadMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string, metadata map[string]interface{}) error {
return errors.New("foo")
},
},
),
ctx: context.Background(),
expectError: true,
},
{
scenario: "context expired",
engine: newMultiPdfEngines(
&gotenberg.PdfEngineMock{
ReadMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string, metadata map[string]interface{}) error {
return nil
},
},
),
ctx: func() context.Context {
ctx, cancel := context.WithCancel(context.Background())
cancel()
return ctx
}(),
expectError: true,
},
} {
t.Run(tc.scenario, func(t *testing.T) {
err := tc.engine.ReadMetadata(tc.ctx, zap.NewNop(), "", nil)
if !tc.expectError && err != nil {
t.Fatalf("expected no error but got: %v", err)
}
if tc.expectError && err == nil {
t.Fatal("expected error but got none")
}
})
}
}
func TestMultiPdfEngines_WriteMetadata(t *testing.T) {
for _, tc := range []struct {
scenario string
engine *multiPdfEngines
ctx context.Context
expectError bool
}{
{
scenario: "nominal behavior",
engine: newMultiPdfEngines(
&gotenberg.PdfEngineMock{
WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string, newMetadata map[string]interface{}) error {
return nil
},
},
),
ctx: context.Background(),
},
{
scenario: "at least one engine does not return an error",
engine: newMultiPdfEngines(
&gotenberg.PdfEngineMock{
WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string, newMetadata map[string]interface{}) error {
return errors.New("foo")
},
},
&gotenberg.PdfEngineMock{
WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string, newMetadata map[string]interface{}) error {
return nil
},
},
),
ctx: context.Background(),
},
{
scenario: "all engines return an error",
engine: newMultiPdfEngines(
&gotenberg.PdfEngineMock{
WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string, newMetadata map[string]interface{}) error {
return errors.New("foo")
},
},
&gotenberg.PdfEngineMock{
WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string, newMetadata map[string]interface{}) error {
return errors.New("foo")
},
},
),
ctx: context.Background(),
expectError: true,
},
{
scenario: "context expired",
engine: newMultiPdfEngines(
&gotenberg.PdfEngineMock{
WriteMetadataMock: func(ctx context.Context, logger *zap.Logger, inputPath string, newMetadata map[string]interface{}) error {
return nil
},
},
),
ctx: func() context.Context {
ctx, cancel := context.WithCancel(context.Background())
cancel()
return ctx
}(),
expectError: true,
},
} {
t.Run(tc.scenario, func(t *testing.T) {
err := tc.engine.WriteMetadata(tc.ctx, zap.NewNop(), "", nil)
if !tc.expectError && err != nil {
t.Fatalf("expected no error but got: %v", err)
}
if tc.expectError && err == nil {
t.Fatal("expected error but got none")
}
})
}
}