pdfcpusign

type DocMdpPerm int

type FieldFlags uint32

type FieldMdpAction string

type PropAuthType string

type Sig struct {
	Type      SigType
	Filter    string
	SubFilter string

	Cert     []*x509.Certificate
	Contents []byte

	References []*SigRef // TODO: facilitate allowing indirect references to the signature reference dictionaries (only if ByteRange is not present).
	ByteRange  []int64

	HandlerVersion *int      // R; Deprecated in PDF 2.0.
	Time           time.Time // M
	Name           string
	Reason         string
	Location       string
	PropBuild      types.Dict // TODO: create its corresponding struct.
	PropAuthTime   *int
	PropAuthType   PropAuthType

	Changes       *SigChanges
	ContactInfo   string
	FormatVersion int // V
}

type SigChanges struct {
	PagesAltered   int
	FieldsAltered  int
	FieldsFilledIn int
}

type SigField struct {
	Page              *types.IndirectRef // P
	Parent            *types.IndirectRef
	Kids              []types.IndirectRef
	PartialName       string             // T
	AlternativeName   string             // TU
	MappingName       string             // TM
	FieldFlags        FieldFlags         // Ff
	Value             *types.IndirectRef // V. TODO: facilitate having a direct value.
	DefaultValue      *Sig               // DV. TODO: can a signature field have a default value?
	AdditionalActions types.Dict         // AA. TODO: create its corresponding struct.
	Lock              *types.IndirectRef
	SeedValue         *types.IndirectRef // SV. TODO: create its corresponding struct.
}

type SigFieldLock struct {
	Action FieldMdpAction
	Fields []string
	Perm   DocMdpPerm
}

type SigHandler interface {
	// Sign
	// Beware that after calling this function, you should only call api.WriteIncrement on the given context.
	Sign(pdfCtx *model.Context, sig *Sig) error
}

type SigRef struct {
	TransformMethod TransformMethod
	TransformParams TransformParams // TODO: this can also be an indirect reference.
	Data            *types.IndirectRef
	DigestMethod    crypto.Hash // Deprecated in PDF 2.0. TODO: this value is way more limited than crypto.Hash available values.
}

type SigType string

type SignInfo struct {
	Type       SignType
	DocMdp     DocMdpPerm
	SignerInfo *SignerInfo
}

type SignType string

type SignerInfo struct {
	Name        string
	Location    string
	Reason      string
	ContactInfo string
	Time        time.Time
}

type TransformMethod string

type TransformParams interface {
	ToPdfDict() types.Dict
	// contains filtered or unexported methods
}

type TransformParamsDocMdp struct {
	Perm    DocMdpPerm
	Version string // V
}

type TransformParamsFieldMdp struct {
	Action  FieldMdpAction
	Fields  []string
	Version string // V
}