92 lines
2.1 KiB
Go
92 lines
2.1 KiB
Go
package ipp
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import "encoding/binary"
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type ippResponseHeader struct {
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versionNumber versionNumber
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statusCode statusCode
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requestId uint32
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}
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func (h *ippResponseHeader) marshal() []byte {
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a := make([]byte, 8, 8)
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binary.BigEndian.PutUint16(a[0:2], uint16(h.versionNumber))
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binary.BigEndian.PutUint16(a[2:4], uint16(h.statusCode))
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binary.BigEndian.PutUint32(a[4:8], h.requestId)
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return a
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}
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type Response struct {
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header ippResponseHeader
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operationAttributes []Attribute
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jobAttributes []Attribute
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printerAttributes []Attribute
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}
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func NewResponse(code statusCode, requestId uint32) *Response {
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r := new(Response)
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r.header.versionNumber = 0x0101
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r.header.requestId = requestId
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r.header.statusCode = code
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r.operationAttributes = make([]Attribute, 0)
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r.printerAttributes = make([]Attribute, 0)
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r.jobAttributes = make([]Attribute, 0)
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return r
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}
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// func (r *Response) length() int {
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// l := 8 + 1
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// if len(r.jobAttributes) > 0 {
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// l += 1 //
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// for _, e := range r.jobAttributes {
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// l += e.length()
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// }
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// }
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// for _, e := range r.operationAttributes {
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// l += e.length()
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// }
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// for _, e := range r.printerAttributes {
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// l += e.length()
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// }
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// }
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func (r *Response) Marshal() []byte {
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a := make([]byte, 0, 20)
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a = append(a, r.header.marshal()...)
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if len(r.operationAttributes) > 0 {
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a = append(a, byte(operationAttributes))
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for _, e := range r.operationAttributes {
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a = append(a, e.marshal()...)
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}
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}
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if len(r.jobAttributes) > 0 {
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a = append(a, byte(jobAttributes))
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for _, e := range r.jobAttributes {
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a = append(a, e.marshal()...)
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}
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}
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if len(r.printerAttributes) > 0 {
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a = append(a, byte(printerAttributes))
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for _, e := range r.printerAttributes {
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a = append(a, e.marshal()...)
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}
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}
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a = append(a, byte(endOfAttributes))
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return a
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}
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func (r *Response) AddPrinterAttribute(a Attribute) {
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r.printerAttributes = append(r.printerAttributes, a)
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}
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func (r *Response) AddOperatonAttribute(a Attribute) {
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r.operationAttributes = append(r.operationAttributes, a)
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}
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func (r *Response) AddJobAttribute(a Attribute) {
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r.jobAttributes = append(r.jobAttributes, a)
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}
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