2-add-keyword-support (#6)

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>

server/handlegetjobs.go

@@ -0,0 +1,8 @@
+package main
+
+import "ippserver/packages/ipp"
+
+func handleGetJobs(r *ipp.Request) *ipp.Response {
+	response := ipp.NewResponse(ipp.SuccessfulOk, r.RequestId())
+	return response
+}

server/handlegetprinterattributes.go

@@ -0,0 +1,28 @@
+package main
+
+import "ippserver/packages/ipp"
+
+func handleGetPrinterAttributes(r *ipp.Request) *ipp.Response {
+	response := ipp.NewResponse(ipp.SuccessfulOk, r.RequestId())
+	var a ipp.Attribute
+	a = ipp.NewCharSetValue("attributes-charset", "utf-8")
+	response.AddOperatonAttribute(a)
+	a = ipp.NewNaturalLanguage("attributes-natural-language", "en")
+	response.AddOperatonAttribute(a)
+	a = ipp.NewUriValue("printer-uri", "ipp://drpork:1234/ipp/print")
+	response.AddOperatonAttribute(a)
+	a = ipp.NewtextWithoutLanguage("printer-make-and-model", "ChroBro 001")
+	response.AddOperatonAttribute(a)
+	a = ipp.NewEnum("printer-state", int32(ipp.Idle))
+	response.AddOperatonAttribute(a)
+	a = ipp.NewKeyWord("ipp-versions-supported", "1.0", "1.1", "2.0")
+	response.AddOperatonAttribute(a)
+	response.AddOperatonAttribute(ipp.NewKeyWord("ipp-features-supported", "wfds-print-1.0"))
+	response.AddOperatonAttribute(ipp.NewMimeMediaType("document-format-supported", "image/pwg-raster"))
+	response.AddOperatonAttribute(ipp.NewKeyWord("media-supported", "iso_a4_210x297mm"))
+	response.AddOperatonAttribute(ipp.NewKeyWord("sides-supported", "one-sided", "two-sided-long-edge", "two-sided-short-edge"))
+	response.AddOperatonAttribute(ipp.NewKeyWord("print-color-mode-supported", "auto", "color", "monochrome"))
+	response.AddOperatonAttribute(ipp.NewResolution("printer-resolution-default", 600, 600))
+	response.AddOperatonAttribute(ipp.NewBoolean("printer-is-accepting-jobs", true))
+	return response
+}

server/handleprintjob.go

@@ -0,0 +1,22 @@
+package main
+
+import (
+	"io"
+	"ippserver/packages/ipp"
+	"os"
+)
+
+func handlePrintJob(r *ipp.Request, byteStream io.Reader) *ipp.Response {
+
+	a := r.GetAttribute("job-name")
+	//a.(nameWithoutLanguage).Value
+	f, err := os.Create(a.(*ipp.NameWithoutLanguage).Value())
+	if err != nil {
+		panic("fail")
+	}
+	defer f.Close()
+	io.Copy(f, byteStream)
+	response := ipp.NewResponse(ipp.SuccessfulOk, r.RequestId())
+
+	return response
+}

server/main.go

@@ -0,0 +1,69 @@
+package main
+
+import (
+	"context"
+	"ippserver/packages/ipp"
+	"ippserver/packages/mdnsserver"
+	"net/http"
+
+	log "github.com/sirupsen/logrus"
+)
+
+func main() {
+	customFormatter := new(log.TextFormatter)
+	customFormatter.TimestampFormat = "2006-01-02 15:04:05"
+	log.SetFormatter(customFormatter)
+	customFormatter.FullTimestamp = true
+	log.SetLevel(log.InfoLevel)
+
+	ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	go mdnsserver.Run(ctx)
+
+	http.HandleFunc("/ipp/print", handle)
+
+	log.Info("http server started on :1234")
+	err := http.ListenAndServe(":1234", nil)
+	if err != nil {
+		log.Fatal("ListenAndServe: " + err.Error())
+	}
+}
+
+func handle(w http.ResponseWriter, r *http.Request) {
+	log.Infoln("handle")
+	if r.Method != http.MethodPost {
+		http.Error(w, "Unsupported method", http.StatusMethodNotAllowed)
+
+	}
+	log.Info(r.Header)
+	//body := make([]byte, r.ContentLength)
+	//io.ReadFull(r.Body, body)
+	//log.Infof("Body %x", body)
+
+	request := ipp.NewRequest(0, 0)
+	//rdata := make([]byte, r.ContentLength)
+	//io.ReadFull(r.Body, rdata)
+	//log.Printf("Data %x", rdata)
+	//fmt.Printf("data % #0x", rdata)
+	//buf := bytes.NewBuffer(rdata)
+	request.UnMarshal(r.Body)
+	log.Infof("Request: \n%v\n", request)
+	var response *ipp.Response
+	switch request.Operation() {
+	case ipp.GetPrinterAttributes:
+		response = handleGetPrinterAttributes(request)
+	case ipp.PrintJob:
+		response = handlePrintJob(request, r.Body)
+	case ipp.GetJobs:
+		response = handleGetJobs(request)
+	default:
+		response = ipp.NewResponse(ipp.ClientErrorBadRequest, request.RequestId())
+	}
+
+	log.Infof("Response:\n%v\n", response)
+	data := response.Marshal()
+
+	//log.Debugf("% x", data)
+	w.Write(data)
+
+}