Exemplo n.º 1
0
// GetPrinters gets all CUPS printers found on the CUPS server.
func (c *CUPS) GetPrinters() ([]lib.Printer, error) {
	pa := C.newArrayOfStrings(C.int(len(c.printerAttributes)))
	defer C.freeStringArrayAndStrings(pa, C.int(len(c.printerAttributes)))
	for i, a := range c.printerAttributes {
		C.setStringArrayValue(pa, C.int(i), C.CString(a))
	}

	response, err := c.cc.getPrinters(pa, C.int(len(c.printerAttributes)))
	if err != nil {
		return nil, err
	}

	// cupsDoRequest() returns ipp_t pointer which needs explicit free.
	defer C.ippDelete(response)

	if C.getIPPRequestStatusCode(response) == C.IPP_STATUS_ERROR_NOT_FOUND {
		// Normal error when there are no printers.
		return make([]lib.Printer, 0), nil
	}

	printers := c.responseToPrinters(response)
	printers = filterRawPrinters(printers)
	printers = c.addPPDDescriptionToPrinters(printers)
	printers = addStaticDescriptionToPrinters(printers)

	return printers, nil
}
Exemplo n.º 2
0
// GetPrinters gets all CUPS printers found on the CUPS server.
func (c *CUPS) GetPrinters() ([]lib.Printer, error) {
	pa := C.newArrayOfStrings(C.int(len(c.printerAttributes)))
	defer C.freeStringArrayAndStrings(pa, C.int(len(c.printerAttributes)))
	for i, a := range c.printerAttributes {
		C.setStringArrayValue(pa, C.int(i), C.CString(a))
	}

	response, err := c.cc.getPrinters(pa, C.int(len(c.printerAttributes)))
	if err != nil {
		return nil, err
	}

	// cupsDoRequest() returns ipp_t pointer which needs explicit free.
	defer C.ippDelete(response)

	if C.ippGetStatusCode(response) == C.IPP_STATUS_ERROR_NOT_FOUND {
		// Normal error when there are no printers.
		return make([]lib.Printer, 0), nil
	}

	printers := c.responseToPrinters(response)
	for i := range printers {
		printers[i].GCPVersion = lib.GCPAPIVersion
		printers[i].ConnectorVersion = lib.ShortName
		printers[i].SetupURL = lib.ConnectorHomeURL
		printers[i].SupportURL = lib.ConnectorHomeURL
		printers[i].UpdateURL = lib.ConnectorHomeURL
	}
	printers = c.addDescriptionToPrinters(printers)

	return printers, nil
}
Exemplo n.º 3
0
// GetJobState gets the current state of the job indicated by jobID.
func (c *CUPS) GetJobState(jobID uint32) (cdd.PrintJobStateDiff, error) {
	ja := C.newArrayOfStrings(C.int(len(jobAttributes)))
	defer C.freeStringArrayAndStrings(ja, C.int(len(jobAttributes)))
	for i, attribute := range jobAttributes {
		C.setStringArrayValue(ja, C.int(i), C.CString(attribute))
	}

	response, err := c.cc.getJobAttributes(C.int(jobID), ja)
	if err != nil {
		return cdd.PrintJobStateDiff{}, err
	}

	// cupsDoRequest() returned ipp_t pointer needs explicit free.
	defer C.ippDelete(response)

	s := C.ippFindAttribute(response, C.JOB_STATE, C.IPP_TAG_ENUM)
	state := int32(C.ippGetInteger(s, C.int(0)))

	p := C.ippFindAttribute(response, C.JOB_MEDIA_SHEETS_COMPLETED, C.IPP_TAG_INTEGER)
	var pages int32
	if p != nil {
		pages = int32(C.ippGetInteger(p, C.int(0)))
	}

	return convertJobState(state, pages), nil
}
Exemplo n.º 4
0
// GetJobState gets the current state of the job indicated by jobID.
func (c *CUPS) GetJobState(_ string, jobID uint32) (*cdd.PrintJobStateDiff, error) {
	ja := C.newArrayOfStrings(C.int(len(jobAttributes)))
	defer C.freeStringArrayAndStrings(ja, C.int(len(jobAttributes)))
	for i, attribute := range jobAttributes {
		C.setStringArrayValue(ja, C.int(i), C.CString(attribute))
	}

	response, err := c.cc.getJobAttributes(C.int(jobID), ja)
	if err != nil {
		return nil, err
	}

	// cupsDoRequest() returned ipp_t pointer needs explicit free.
	defer C.ippDelete(response)

	s := C.ippFindAttribute(response, C.JOB_STATE, C.IPP_TAG_ENUM)
	state := int32(C.getAttributeIntegerValue(s, C.int(0)))

	return convertJobState(state), nil
}