henrik
04a4b4157f
More development. More types. Fixed attribute groups in requests. Started on client. Saving data to file. More types. Printing from chromeos works a little bit. More types. Spelling corrections. WIP: Fix keyword handling Move request to a separate file and add test. Co-authored-by: Henrik Sölver <henrik.solver@gmail.com> Reviewed-on: #6 Co-Authored-By: henrik <henrik.solver@gmail.com> Co-Committed-By: henrik <henrik.solver@gmail.com>
124 lines
3.2 KiB
Go
124 lines
3.2 KiB
Go
package ipp
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import (
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"encoding/binary"
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"fmt"
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"io"
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)
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// References
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// https://tools.ietf.org/html/rfc8010
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// https://tools.ietf.org/html/rfc8011
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// Defined value tags
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// from rfc8010
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type tag uint8
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const (
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// attribute group tags
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beginAttribute tag = 0x00
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operationAttributes tag = 0x01
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jobAttributes tag = 0x02
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endOfAttributes tag = 0x03
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printerAttributes tag = 0x04
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unsupportedAttributes tag = 0x05
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// Out of band
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unsupportedValueTag tag = 0x10
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unknownValueTag tag = 0x12
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noValueValueTag tag = 0x13
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// Integer values
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integerValueTag tag = 0x21
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booleanValueTag tag = 0x22
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enumValueTag tag = 0x23
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// octetString Tags
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octetStringValueTag tag = 0x30
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dateTimeValueTag tag = 0x31
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resolutionValueTag tag = 0x32
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rangeOfIntegerValueTag tag = 0x33
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begCollectionValueTag tag = 0x34
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textWithLanguageValueTag tag = 0x35
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nameWithLanguageValueTag tag = 0x36
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endCollectionValueTag tag = 0x37
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// Character string values
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textWithoutLanguageValueTag tag = 0x41
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nameWithoutLanguageValueTag tag = 0x42
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keyWordValueTag tag = 0x44
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uriValueTag tag = 0x45
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uriSchemeValueTag tag = 0x46
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charsetValueTag tag = 0x47
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naturalLanguageValueTag tag = 0x48
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mimeMediaTypeValueTag tag = 0x49
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memberAttrNameValueTag tag = 0x4a
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)
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// Operation-id, defined in rfc8011
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type OperationId uint16
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const (
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PrintJob OperationId = 0x0002
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PrintURI OperationId = 0x0003
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ValidateJob OperationId = 0x0004
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CreateJob OperationId = 0x0005
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SendDocument OperationId = 0x0006
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SendURI OperationId = 0x0007
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CancelJob OperationId = 0x0008
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GetJobAttributes OperationId = 0x0009
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GetJobs OperationId = 0x000a
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GetPrinterAttributes OperationId = 0x000b
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HoldJob OperationId = 0x000c
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ReleaseJob OperationId = 0x000d
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RestartJob OperationId = 0x000e
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PausePrinter OperationId = 0x0010
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ResumePrinter OperationId = 0x0011
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PurgeJobs OperationId = 0x0012
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)
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type printerState int32
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const (
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Idle printerState = 3
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Processing printerState = 4
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Stopped printerState = 5
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)
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type statusCode uint16
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const (
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SuccessfulOk statusCode = 0x0000
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ClientErrorBadRequest statusCode = 0x0400
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)
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type versionNumber uint16
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func (v versionNumber) String() string {
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vn := uint16(v)
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return fmt.Sprintf("%x.%x", vn&0xff00>>8, vn&0x00ff)
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}
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func unmarshalSingleValue(byteStream io.Reader) (string, string) {
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var length uint16
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binary.Read(byteStream, binary.BigEndian, &length)
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attributeName := make([]byte, length)
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if length > 0 {
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binary.Read(byteStream, binary.BigEndian, attributeName)
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}
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binary.Read(byteStream, binary.BigEndian, &length)
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attributeValue := make([]byte, length)
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binary.Read(byteStream, binary.BigEndian, attributeValue)
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return string(attributeName), string(attributeValue)
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}
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func marshalNameValue(name, value string, b []byte) {
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p := 0
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binary.BigEndian.PutUint16(b[p:p+2], uint16(len(name)))
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p += 2
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copy(b[p:], []byte(name))
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p += len(name)
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binary.BigEndian.PutUint16(b[p:p+2], uint16(len(value)))
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p += 2
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copy(b[p:], []byte(value))
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}
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