api

Documentation

Overview

Package api provides a module which manages a LibreOffice instance and interacts with it via the UNO (Universal Network Objects) API.

Index

• Variables
• type Api
  • func (a *Api) Checks() ([]health.CheckerOption, error)
  • func (a *Api) Descriptor() gotenberg.ModuleDescriptor
  • func (a *Api) Extensions() []string
  • func (a *Api) LibreOffice() (Uno, error)
  • func (a *Api) Metrics() ([]gotenberg.Metric, error)
  • func (a *Api) Pdf(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, ...) error
  • func (a *Api) Provision(ctx *gotenberg.Context) error
  • func (a *Api) Ready() error
  • func (a *Api) Start() error
  • func (a *Api) StartupMessage() string
  • func (a *Api) Stop(ctx context.Context) error
  • func (a *Api) Validate() error
• type ApiMock
  • func (api *ApiMock) Extensions() []string
  • func (api *ApiMock) Pdf(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, ...) error
• type Options
  • func DefaultOptions() Options
• type Provider
• type ProviderMock
  • func (provider *ProviderMock) LibreOffice() (Uno, error)
• type Uno

Variables

var (
	// ErrInvalidPdfFormats happens if the PDF formats option cannot be handled
	// by LibreOffice.
	ErrInvalidPdfFormats = errors.New("invalid PDF formats")

	// ErrMalformedPageRanges happens if the page ranges option cannot be
	// interpreted by LibreOffice.
	ErrMalformedPageRanges = errors.New("page ranges are malformed")
)

Types

type Api

type Api struct {
	// contains filtered or unexported fields
}

Api is a module which provides a Uno to interact with LibreOffice.

func (*Api) Checks

func (a *Api) Checks() ([]health.CheckerOption, error)

Checks adds a health check that verifies if LibreOffice is healthy.

func (*Api) Descriptor

func (a *Api) Descriptor() gotenberg.ModuleDescriptor

Descriptor returns a Api's module descriptor.

func (*Api) Extensions

func (a *Api) Extensions() []string

Extensions returns the file extensions available for conversions. FIXME: don't care, take all on the route level?

func (*Api) LibreOffice

func (a *Api) LibreOffice() (Uno, error)

LibreOffice returns a Uno for interacting with LibreOffice.

func (*Api) Metrics

func (a *Api) Metrics() ([]gotenberg.Metric, error)

Metrics returns the metrics.

func (*Api) Pdf

func (a *Api) Pdf(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options Options) error

Pdf converts a document to PDF.

func (*Api) Provision

func (a *Api) Provision(ctx *gotenberg.Context) error

Provision sets the module properties.

func (*Api) Ready

func (a *Api) Ready() error

Ready returns no error if the module is ready.

func (*Api) Start

func (a *Api) Start() error

Start does nothing if auto-start is not enabled. Otherwise, it starts a LibreOffice instance.

func (*Api) StartupMessage

func (a *Api) StartupMessage() string

StartupMessage returns a custom startup message.

func (*Api) Stop

func (a *Api) Stop(ctx context.Context) error

Stop stops the current browser instance.

func (*Api) Validate

func (a *Api) Validate() error

Validate validates the module properties.

type ApiMock

type ApiMock struct {
	PdfMock        func(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options Options) error
	ExtensionsMock func() []string
}

ApiMock is a mock for the Uno interface.

func (*ApiMock) Extensions

func (api *ApiMock) Extensions() []string

func (*ApiMock) Pdf

func (api *ApiMock) Pdf(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options Options) error

type Options

type Options struct {
	// Landscape allows to change the orientation of the resulting PDF.
	Landscape bool

	// PageRanges allows to select the pages to convert.
	PageRanges string

	// ExportFormFields specifies whether form fields are exported as widgets
	// or only their fixed print representation is exported.
	ExportFormFields bool

	// AllowDuplicateFieldNames specifies whether multiple form fields exported
	// are allowed to have the same field name.
	AllowDuplicateFieldNames bool

	// ExportBookmarks specifies if bookmarks are exported to PDF.
	ExportBookmarks bool

	// ExportBookmarksToPdfDestination specifies that the bookmarks contained
	// in the source LibreOffice file should be exported to the PDF file as
	// Named Destination.
	ExportBookmarksToPdfDestination bool

	// ExportPlaceholders exports the placeholders fields visual markings only.
	// The exported placeholder is ineffective.
	ExportPlaceholders bool

	// ExportNotes specifies if notes are exported to PDF.
	ExportNotes bool

	// ExportNotesPages specifies if notes pages are exported to PDF.
	// Notes pages are available in Impress documents only.
	ExportNotesPages bool

	// ExportOnlyNotesPages specifies, if the property ExportNotesPages is set
	// to true, if only notes pages are exported to PDF.
	ExportOnlyNotesPages bool

	// ExportNotesInMargin specifies if notes in margin are exported to PDF.
	ExportNotesInMargin bool

	// ConvertOooTargetToPdfTarget specifies that the target documents with
	// .od[tpgs] extension, will have that extension changed to .pdf when the
	// link is exported to PDF. The source document remains untouched.
	ConvertOooTargetToPdfTarget bool

	// ExportLinksRelativeFsys specifies that the file system related
	// hyperlinks (file:// protocol) present in the document will be exported
	// as relative to the source document location.
	ExportLinksRelativeFsys bool

	// ExportHiddenSlides exports, for LibreOffice Impress, slides that are not
	// included in slide shows.
	ExportHiddenSlides bool

	// SkipEmptyPages specifies that automatically inserted empty pages are
	// suppressed. This option is active only if storing Writer documents.
	SkipEmptyPages bool

	// AddOriginalDocumentAsStream specifies that a stream is inserted to the
	// PDF file which contains the original document for archiving purposes.
	AddOriginalDocumentAsStream bool

	// SinglePageSheets ignores each sheet’s paper size, print ranges and
	// shown/hidden status and puts every sheet (even hidden sheets) on exactly
	// one page.
	SinglePageSheets bool

	// LosslessImageCompression specifies if images are exported to PDF using
	// a lossless compression format like PNG or compressed using the JPEG
	// format.
	LosslessImageCompression bool

	// Quality specifies the quality of the JPG export. A higher value produces
	// a higher-quality image and a larger file. Between 1 and 100.
	Quality int

	// ReduceImageResolution specifies if the resolution of each image is
	// reduced to the resolution specified by the property MaxImageResolution.
	ReduceImageResolution bool

	// MaxImageResolution, if the property ReduceImageResolution is set to
	// true, tells if all images will be reduced to the given value in DPI.
	// Possible values are: 75, 150, 300, 600 and 1200.
	MaxImageResolution int

	// PdfFormats allows to convert the resulting PDF to PDF/A-1b, PDF/A-2b,
	// PDF/A-3b and PDF/UA.
	PdfFormats gotenberg.PdfFormats
}

Options gathers available options when converting a document to PDF. See: https://help.libreoffice.org/latest/en-US/text/shared/guide/pdf_params.html.

func DefaultOptions

func DefaultOptions() Options

DefaultOptions returns the default values for Options.

type Provider

type Provider interface {
	LibreOffice() (Uno, error)
}

Provider is a module interface which exposes a method for creating a Uno for other modules.

func (m *YourModule) Provision(ctx *gotenberg.Context) error {
	provider, _ := ctx.Module(new(libreofficeapi.Provider))
	libreOffice, _      := provider.(api.Provider).LibreOffice()
}

type ProviderMock

type ProviderMock struct {
	LibreOfficeMock func() (Uno, error)
}

ProviderMock is a mock for the Provider interface.

func (*ProviderMock) LibreOffice

func (provider *ProviderMock) LibreOffice() (Uno, error)

type Uno

type Uno interface {
	Pdf(ctx context.Context, logger *zap.Logger, inputPath, outputPath string, options Options) error
	Extensions() []string
}

Uno is an abstraction on top of the Universal Network Objects API.