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‎.idea/artifacts/cupstool_jar.xml

+9
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‎.idea/description.html

+1
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‎.idea/libraries/net_java_dev_jna_jna_4_4_0.xml

+10
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‎.idea/misc.xml

+50
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‎.idea/modules.xml

+8
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‎.idea/project-template.xml

+3
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‎cupstool.iml

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<?xml version="1.0" encoding="UTF-8"?>
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<module type="JAVA_MODULE" version="4">
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<component name="NewModuleRootManager" inherit-compiler-output="true">
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<exclude-output />
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<content url="file://$MODULE_DIR$">
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<sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
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</content>
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<orderEntry type="inheritedJdk" />
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<orderEntry type="sourceFolder" forTests="false" />
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<orderEntry type="library" name="net.java.dev.jna:jna:4.4.0" level="project" />
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</component>
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</module>

‎cupstool.jar

1.05 MB
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‎src/META-INF/MANIFEST.MF

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Manifest-Version: 1.0
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Main-Class: com.berezin.Main
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‎src/com/berezin/Cups.java

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package com.berezin;
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import com.sun.jna.*;
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/**
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* Created by kyle on 4/27/17.
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*/
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public interface Cups extends Library {
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Cups INSTANCE = (Cups ) Native.loadLibrary("cups", Cups.class);
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Pointer httpConnectEncrypt(String host, int port, Pointer encryption);
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String cupsServer ();
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int ippPort ();
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Pointer cupsEncryption ();
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Pointer ippNewRequest (int op);
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int httpAssembleURI (int encoding, Memory uri, int urilen, String sceme, String username, String host, int port, String resourcef);
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int ippAddString (Pointer ipp, int group, int tag, String name, String charset, String value);
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int ippAddInteger (Pointer ipp, int group, int tag, String name, int value);
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Pointer cupsDoRequest (Pointer http, Pointer request, String resource);
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Pointer ippFindAttribute (Pointer ipp, String name, int tag);
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String ippGetName(Pointer attr);
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int ippGetCount(Pointer attr);
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String ippGetString(Pointer attr, int element, String language);
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int ippGetInteger(Pointer attr, int element);
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int ippTagValue(String name);
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int ippOpValue(String name);
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String ippOpString(int op);
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Pointer ippFirstAttribute (Pointer ipp);
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Pointer ippNextAttribute (Pointer ipp);
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String ippTagString(int tag);
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int ippGetValueTag (Pointer ipp);
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void ippDelete (Pointer ipp);
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void httpClose (Pointer http);
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}

‎src/com/berezin/Main.java

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package com.berezin;
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import com.sun.jna.Pointer;
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import java.util.Scanner;
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public class Main {
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static Pointer http;
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public static void main(String[] args) {
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initCupsStuff();
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while (true) {
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int item = promptInput();
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if (item == 1) listSubscriptions();
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else if (item == 2) startSubscription();
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else if (item == 3) endSubscription();
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else if (item == 4) break;
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else System.out.println("Invalid input");
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}
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}
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static int promptInput(){
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System.out.println("1: List active subscriptions");
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System.out.println("2: Start subscription");;
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System.out.println("3: End subscription");
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System.out.println("4: Exit");
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Scanner s = new Scanner(System.in);
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return s.nextInt();
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}
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static void initCupsStuff() {
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http = Cups.INSTANCE.httpConnectEncrypt(
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Cups.INSTANCE.cupsServer(),
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Cups.INSTANCE.ippPort(),
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Cups.INSTANCE.cupsEncryption());
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}
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static void listSubscriptions() {
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Pointer request = Cups.INSTANCE.ippNewRequest(Cups.INSTANCE.ippOpValue("Get-Subscriptions"));
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Cups.INSTANCE.ippAddString(request,
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Cups.INSTANCE.ippTagValue("Operation"),
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Cups.INSTANCE.ippTagValue("uri"),
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"printer-uri",
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"",
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"ipp://localhost:631/printers/");
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Pointer response = Cups.INSTANCE.cupsDoRequest(http, request, "/");
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parseResponse(response);
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}
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static void startSubscription() {
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System.out.println("Enter subscription uri e.g. rss://localhost:8000");
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Scanner s = new Scanner(System.in);
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String uri = s.next();
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Pointer request = Cups.INSTANCE.ippNewRequest(Cups.INSTANCE.ippOpValue("Create-Printer-Subscription"));
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Cups.INSTANCE.ippAddString(request,
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Cups.INSTANCE.ippTagValue("Operation"),
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Cups.INSTANCE.ippTagValue("uri"),
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"printer-uri",
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"",
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"ipp://localhost:631/");
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Cups.INSTANCE.ippAddString(request,
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Cups.INSTANCE.ippTagValue("Subscription"),
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Cups.INSTANCE.ippTagValue("uri"),
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"notify-recipient-uri",
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"",
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uri);
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Cups.INSTANCE.ippAddString(request,
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Cups.INSTANCE.ippTagValue("Subscription"),
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Cups.INSTANCE.ippTagValue("Keyword"),
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"notify-events",
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"",
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"printer-state-changed");
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Pointer response = Cups.INSTANCE.cupsDoRequest(http, request, "/");
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parseResponse(response);
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}
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static void endSubscription() {
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System.out.println("Enter subscription id, or -1 to cancel");
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Scanner s = new Scanner(System.in);
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int id = s.nextInt();
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Pointer request = Cups.INSTANCE.ippNewRequest(Cups.INSTANCE.ippOpValue("Cancel-Subscription"));
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Cups.INSTANCE.ippAddString(request,
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Cups.INSTANCE.ippTagValue("Operation"),
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Cups.INSTANCE.ippTagValue("uri"),
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"printer-uri",
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"",
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"ipp://localhost:631/");
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Cups.INSTANCE.ippAddInteger(request,
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Cups.INSTANCE.ippTagValue("Operation"),
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Cups.INSTANCE.ippTagValue("Integer"),
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"notify-subscription-id",
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id);
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Pointer response = Cups.INSTANCE.cupsDoRequest(http, request, "/");
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parseResponse(response);
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}
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static void parseResponse(Pointer response) {
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Pointer attr = Cups.INSTANCE.ippFirstAttribute(response);
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while (true) {
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if (attr == Pointer.NULL) {
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break;
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}
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int valueTag = Cups.INSTANCE.ippGetValueTag(attr);
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String data = Cups.INSTANCE.ippTagString(valueTag);
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String attrName = Cups.INSTANCE.ippGetName(attr);
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if (valueTag == Cups.INSTANCE.ippTagValue("Integer")) {
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data = "" + Cups.INSTANCE.ippGetInteger(attr, 0);
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} else {
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data = Cups.INSTANCE.ippGetString(attr, 0, "");
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}
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if (attrName == null){
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System.out.println("------------------------");
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} else {
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System.out.printf("%s: %s\n", attrName, data);
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}
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attr = Cups.INSTANCE.ippNextAttribute(response);
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}
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System.out.println("------------------------");
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}
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}

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