1 /* |
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2 * Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package sun.print; |
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27 |
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28 import java.io.BufferedReader; |
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29 import java.io.FileInputStream; |
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30 import java.io.InputStream; |
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31 import java.io.InputStreamReader; |
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32 import java.io.IOException; |
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33 import java.util.ArrayList; |
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34 import java.util.Vector; |
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35 import java.security.AccessController; |
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36 import java.security.PrivilegedActionException; |
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37 import java.security.PrivilegedExceptionAction; |
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38 import javax.print.DocFlavor; |
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39 import javax.print.MultiDocPrintService; |
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40 import javax.print.PrintService; |
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41 import javax.print.PrintServiceLookup; |
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42 import javax.print.attribute.Attribute; |
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43 import javax.print.attribute.AttributeSet; |
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44 import javax.print.attribute.HashPrintRequestAttributeSet; |
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45 import javax.print.attribute.HashPrintServiceAttributeSet; |
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46 import javax.print.attribute.PrintRequestAttribute; |
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47 import javax.print.attribute.PrintRequestAttributeSet; |
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48 import javax.print.attribute.PrintServiceAttribute; |
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49 import javax.print.attribute.PrintServiceAttributeSet; |
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50 import javax.print.attribute.standard.PrinterName; |
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51 import javax.print.attribute.standard.PrinterURI; |
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52 import java.io.File; |
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53 import java.io.FileReader; |
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54 import java.net.URL; |
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55 import java.nio.file.Files; |
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56 |
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57 /* |
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58 * Remind: This class uses solaris commands. We also need a linux |
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59 * version |
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60 */ |
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61 public class UnixPrintServiceLookup extends PrintServiceLookup |
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62 implements BackgroundServiceLookup, Runnable { |
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63 |
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64 /* Remind: the current implementation is static, as its assumed |
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65 * its preferable to minimize creation of PrintService instances. |
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66 * Later we should add logic to add/remove services on the fly which |
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67 * will take a hit of needing to regather the list of services. |
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68 */ |
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69 private String defaultPrinter; |
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70 private PrintService defaultPrintService; |
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71 private PrintService[] printServices; /* includes the default printer */ |
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72 private Vector<BackgroundLookupListener> lookupListeners = null; |
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73 private static String debugPrefix = "UnixPrintServiceLookup>> "; |
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74 private static boolean pollServices = true; |
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75 private static final int DEFAULT_MINREFRESH = 120; // 2 minutes |
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76 private static int minRefreshTime = DEFAULT_MINREFRESH; |
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77 |
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78 |
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79 static String osname; |
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80 |
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81 // List of commands used to deal with the printer queues on AIX |
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82 String[] lpNameComAix = { |
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83 "/usr/bin/lsallq", |
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84 "/usr/bin/lpstat -W -p|/usr/bin/expand|/usr/bin/cut -f1 -d' '", |
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85 "/usr/bin/lpstat -W -d|/usr/bin/expand|/usr/bin/cut -f1 -d' '", |
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86 "/usr/bin/lpstat -W -v" |
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87 }; |
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88 private static final int aix_lsallq = 0; |
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89 private static final int aix_lpstat_p = 1; |
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90 private static final int aix_lpstat_d = 2; |
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91 private static final int aix_lpstat_v = 3; |
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92 private static int aix_defaultPrinterEnumeration = aix_lsallq; |
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93 |
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94 static { |
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95 /* The system property "sun.java2d.print.polling" |
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96 * can be used to force the printing code to poll or not poll |
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97 * for PrintServices. |
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98 */ |
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99 String pollStr = java.security.AccessController.doPrivileged( |
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100 new sun.security.action.GetPropertyAction("sun.java2d.print.polling")); |
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101 |
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102 if (pollStr != null) { |
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103 if (pollStr.equalsIgnoreCase("true")) { |
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104 pollServices = true; |
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105 } else if (pollStr.equalsIgnoreCase("false")) { |
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106 pollServices = false; |
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107 } |
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108 } |
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109 |
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110 /* The system property "sun.java2d.print.minRefreshTime" |
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111 * can be used to specify minimum refresh time (in seconds) |
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112 * for polling PrintServices. The default is 120. |
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113 */ |
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114 String refreshTimeStr = java.security.AccessController.doPrivileged( |
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115 new sun.security.action.GetPropertyAction( |
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116 "sun.java2d.print.minRefreshTime")); |
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117 |
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118 if (refreshTimeStr != null) { |
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119 try { |
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120 minRefreshTime = (new Integer(refreshTimeStr)).intValue(); |
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121 } catch (NumberFormatException e) { |
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122 } |
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123 if (minRefreshTime < DEFAULT_MINREFRESH) { |
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124 minRefreshTime = DEFAULT_MINREFRESH; |
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125 } |
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126 } |
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127 |
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128 osname = java.security.AccessController.doPrivileged( |
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129 new sun.security.action.GetPropertyAction("os.name")); |
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130 |
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131 /* The system property "sun.java2d.print.aix.lpstat" |
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132 * can be used to force the usage of 'lpstat -p' to enumerate all |
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133 * printer queues. By default we use 'lsallq', because 'lpstat -p' can |
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134 * take lots of time if thousands of printers are attached to a server. |
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135 */ |
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136 if (isAIX()) { |
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137 String aixPrinterEnumerator = java.security.AccessController.doPrivileged( |
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138 new sun.security.action.GetPropertyAction("sun.java2d.print.aix.lpstat")); |
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139 |
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140 if (aixPrinterEnumerator != null) { |
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141 if (aixPrinterEnumerator.equalsIgnoreCase("lpstat")) { |
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142 aix_defaultPrinterEnumeration = aix_lpstat_p; |
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143 } else if (aixPrinterEnumerator.equalsIgnoreCase("lsallq")) { |
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144 aix_defaultPrinterEnumeration = aix_lsallq; |
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145 } |
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146 } |
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147 } |
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148 } |
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149 |
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150 static boolean isMac() { |
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151 return osname.startsWith("Mac"); |
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152 } |
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153 |
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154 static boolean isSysV() { |
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155 return osname.equals("SunOS"); |
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156 } |
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157 |
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158 static boolean isLinux() { |
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159 return (osname.equals("Linux")); |
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160 } |
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161 |
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162 static boolean isBSD() { |
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163 return (osname.equals("Linux") || |
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164 osname.contains("OS X")); |
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165 } |
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166 |
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167 static boolean isAIX() { |
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168 return osname.equals("AIX"); |
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169 } |
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170 |
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171 static final int UNINITIALIZED = -1; |
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172 static final int BSD_LPD = 0; |
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173 static final int BSD_LPD_NG = 1; |
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174 |
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175 static int cmdIndex = UNINITIALIZED; |
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176 |
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177 String[] lpcFirstCom = { |
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178 "/usr/sbin/lpc status | grep : | sed -ne '1,1 s/://p'", |
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179 "/usr/sbin/lpc status | grep -E '^[ 0-9a-zA-Z_-]*@' | awk -F'@' '{print $1}'" |
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180 }; |
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181 |
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182 String[] lpcAllCom = { |
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183 "/usr/sbin/lpc status all | grep : | sed -e 's/://'", |
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184 "/usr/sbin/lpc status all | grep -E '^[ 0-9a-zA-Z_-]*@' | awk -F'@' '{print $1}' | sort" |
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185 }; |
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186 |
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187 String[] lpcNameCom = { |
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188 "| grep : | sed -ne 's/://p'", |
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189 "| grep -E '^[ 0-9a-zA-Z_-]*@' | awk -F'@' '{print $1}'" |
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190 }; |
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191 |
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192 |
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193 static int getBSDCommandIndex() { |
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194 String command = "/usr/sbin/lpc status all"; |
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195 String[] names = execCmd(command); |
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196 |
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197 if ((names == null) || (names.length == 0)) { |
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198 return BSD_LPD_NG; |
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199 } |
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200 |
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201 for (int i=0; i<names.length; i++) { |
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202 if (names[i].indexOf('@') != -1) { |
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203 return BSD_LPD_NG; |
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204 } |
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205 } |
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206 |
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207 return BSD_LPD; |
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208 } |
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209 |
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210 |
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211 public UnixPrintServiceLookup() { |
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212 // start the printer listener thread |
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213 if (pollServices) { |
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214 PrinterChangeListener thr = new PrinterChangeListener(); |
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215 thr.setDaemon(true); |
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216 thr.start(); |
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217 IPPPrintService.debug_println(debugPrefix+"polling turned on"); |
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218 } |
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219 } |
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220 |
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221 /* Want the PrintService which is default print service to have |
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222 * equality of reference with the equivalent in list of print services |
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223 * This isn't required by the API and there's a risk doing this will |
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224 * lead people to assume its guaranteed. |
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225 */ |
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226 public synchronized PrintService[] getPrintServices() { |
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227 SecurityManager security = System.getSecurityManager(); |
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228 if (security != null) { |
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229 security.checkPrintJobAccess(); |
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230 } |
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231 |
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232 if (printServices == null || !pollServices) { |
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233 refreshServices(); |
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234 } |
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235 if (printServices == null) { |
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236 return new PrintService[0]; |
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237 } else { |
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238 return printServices.clone(); |
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239 } |
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240 } |
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241 |
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242 private int addPrintServiceToList(ArrayList<PrintService> printerList, PrintService ps) { |
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243 int index = printerList.indexOf(ps); |
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244 // Check if PrintService with same name is already in the list. |
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245 if (CUPSPrinter.isCupsRunning() && index != -1) { |
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246 // Bug in Linux: Duplicate entry of a remote printer |
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247 // and treats it as local printer but it is returning wrong |
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248 // information when queried using IPP. Workaround is to remove it. |
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249 // Even CUPS ignores these entries as shown in lpstat or using |
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250 // their web configuration. |
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251 PrinterURI uri = ps.getAttribute(PrinterURI.class); |
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252 if (uri.getURI().getHost().equals("localhost")) { |
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253 IPPPrintService.debug_println(debugPrefix+"duplicate PrintService, ignoring the new local printer: "+ps); |
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254 return index; // Do not add this. |
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255 } |
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256 PrintService oldPS = printerList.get(index); |
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257 uri = oldPS.getAttribute(PrinterURI.class); |
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258 if (uri.getURI().getHost().equals("localhost")) { |
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259 IPPPrintService.debug_println(debugPrefix+"duplicate PrintService, removing existing local printer: "+oldPS); |
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260 printerList.remove(oldPS); |
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261 } else { |
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262 return index; |
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263 } |
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264 } |
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265 printerList.add(ps); |
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266 return (printerList.size() - 1); |
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267 } |
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268 |
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269 |
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270 // refreshes "printServices" |
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271 public synchronized void refreshServices() { |
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272 /* excludes the default printer */ |
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273 String[] printers = null; // array of printer names |
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274 String[] printerURIs = null; //array of printer URIs |
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275 |
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276 try { |
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277 getDefaultPrintService(); |
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278 } catch (Throwable t) { |
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279 IPPPrintService.debug_println(debugPrefix+ |
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280 "Exception getting default printer : " + t); |
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281 } |
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282 if (CUPSPrinter.isCupsRunning()) { |
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283 try { |
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284 printerURIs = CUPSPrinter.getAllPrinters(); |
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285 IPPPrintService.debug_println("CUPS URIs = " + printerURIs); |
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286 if (printerURIs != null) { |
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287 for (int p = 0; p < printerURIs.length; p++) { |
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288 IPPPrintService.debug_println("URI="+printerURIs[p]); |
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289 } |
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290 } |
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291 } catch (Throwable t) { |
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292 IPPPrintService.debug_println(debugPrefix+ |
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293 "Exception getting all CUPS printers : " + t); |
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294 } |
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295 if ((printerURIs != null) && (printerURIs.length > 0)) { |
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296 printers = new String[printerURIs.length]; |
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297 for (int i=0; i<printerURIs.length; i++) { |
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298 int lastIndex = printerURIs[i].lastIndexOf("/"); |
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299 printers[i] = printerURIs[i].substring(lastIndex+1); |
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300 } |
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301 } |
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302 } else { |
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303 if (isMac() || isSysV()) { |
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304 printers = getAllPrinterNamesSysV(); |
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305 } else if (isAIX()) { |
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306 printers = getAllPrinterNamesAIX(); |
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307 } else { //BSD |
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308 printers = getAllPrinterNamesBSD(); |
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309 } |
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310 } |
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311 |
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312 if (printers == null) { |
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313 if (defaultPrintService != null) { |
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314 printServices = new PrintService[1]; |
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315 printServices[0] = defaultPrintService; |
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316 } else { |
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317 printServices = null; |
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318 } |
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319 return; |
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320 } |
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321 |
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322 ArrayList<PrintService> printerList = new ArrayList<>(); |
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323 int defaultIndex = -1; |
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324 for (int p=0; p<printers.length; p++) { |
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325 if (printers[p] == null) { |
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326 continue; |
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327 } |
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328 if ((defaultPrintService != null) |
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329 && printers[p].equals(getPrinterDestName(defaultPrintService))) { |
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330 defaultIndex = addPrintServiceToList(printerList, defaultPrintService); |
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331 } else { |
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332 if (printServices == null) { |
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333 IPPPrintService.debug_println(debugPrefix+ |
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334 "total# of printers = "+printers.length); |
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335 |
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336 if (CUPSPrinter.isCupsRunning()) { |
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337 try { |
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338 addPrintServiceToList(printerList, |
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339 new IPPPrintService(printers[p], |
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340 printerURIs[p], |
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341 true)); |
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342 } catch (Exception e) { |
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343 IPPPrintService.debug_println(debugPrefix+ |
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344 " getAllPrinters Exception "+ |
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345 e); |
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346 |
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347 } |
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348 } else { |
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349 printerList.add(new UnixPrintService(printers[p])); |
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350 } |
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351 } else { |
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352 int j; |
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353 for (j=0; j<printServices.length; j++) { |
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354 if (printServices[j] != null) { |
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355 if (printers[p].equals(getPrinterDestName(printServices[j]))) { |
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356 printerList.add(printServices[j]); |
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357 printServices[j] = null; |
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358 break; |
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359 } |
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360 } |
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361 } |
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362 |
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363 if (j == printServices.length) { // not found? |
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364 if (CUPSPrinter.isCupsRunning()) { |
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365 try { |
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366 addPrintServiceToList(printerList, |
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367 new IPPPrintService(printers[p], |
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368 printerURIs[p], |
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369 true)); |
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370 } catch (Exception e) { |
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371 IPPPrintService.debug_println(debugPrefix+ |
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372 " getAllPrinters Exception "+ |
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373 e); |
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374 |
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375 } |
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376 } else { |
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377 printerList.add(new UnixPrintService(printers[p])); |
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378 } |
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379 } |
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380 } |
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381 } |
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382 } |
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383 |
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384 // Look for deleted services and invalidate these |
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385 if (printServices != null) { |
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386 for (int j=0; j < printServices.length; j++) { |
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387 if ((printServices[j] instanceof UnixPrintService) && |
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388 (!printServices[j].equals(defaultPrintService))) { |
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389 ((UnixPrintService)printServices[j]).invalidateService(); |
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390 } |
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391 } |
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392 } |
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393 |
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394 //if defaultService is not found in printerList |
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395 if (defaultIndex == -1 && defaultPrintService != null) { |
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396 defaultIndex = addPrintServiceToList(printerList, defaultPrintService); |
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397 } |
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398 |
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399 printServices = printerList.toArray(new PrintService[] {}); |
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400 |
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401 // swap default with the first in the list |
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402 if (defaultIndex > 0) { |
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403 PrintService saveService = printServices[0]; |
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404 printServices[0] = printServices[defaultIndex]; |
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405 printServices[defaultIndex] = saveService; |
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406 } |
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407 } |
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408 |
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409 private boolean matchesAttributes(PrintService service, |
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410 PrintServiceAttributeSet attributes) { |
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411 |
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412 Attribute [] attrs = attributes.toArray(); |
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413 for (int i=0; i<attrs.length; i++) { |
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414 @SuppressWarnings("unchecked") |
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415 Attribute serviceAttr |
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416 = service.getAttribute((Class<PrintServiceAttribute>)attrs[i].getCategory()); |
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417 if (serviceAttr == null || !serviceAttr.equals(attrs[i])) { |
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418 return false; |
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419 } |
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420 } |
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421 return true; |
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422 } |
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423 |
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424 /* This checks for validity of the printer name before passing as |
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425 * parameter to a shell command. |
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426 */ |
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427 private boolean checkPrinterName(String s) { |
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428 char c; |
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429 |
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430 for (int i=0; i < s.length(); i++) { |
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431 c = s.charAt(i); |
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432 if (Character.isLetterOrDigit(c) || |
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433 c == '-' || c == '_' || c == '.' || c == '/') { |
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434 continue; |
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435 } else { |
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436 return false; |
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437 } |
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438 } |
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439 return true; |
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440 } |
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441 |
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442 /* |
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443 * Gets the printer name compatible with the list of printers returned by |
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444 * the system when we query default or all the available printers. |
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445 */ |
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446 private String getPrinterDestName(PrintService ps) { |
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447 if (isMac()) { |
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448 return ((IPPPrintService)ps).getDest(); |
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449 } |
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450 return ps.getName(); |
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451 } |
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452 |
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453 /* On a network with many (hundreds) of network printers, it |
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454 * can save several seconds if you know all you want is a particular |
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455 * printer, to ask for that printer rather than retrieving all printers. |
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456 */ |
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457 private PrintService getServiceByName(PrinterName nameAttr) { |
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458 String name = nameAttr.getValue(); |
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459 if (name == null || name.equals("") || !checkPrinterName(name)) { |
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460 return null; |
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461 } |
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462 /* check if all printers are already available */ |
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463 if (printServices != null) { |
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464 for (PrintService printService : printServices) { |
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465 PrinterName printerName = printService.getAttribute(PrinterName.class); |
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466 if (printerName.getValue().equals(name)) { |
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467 return printService; |
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468 } |
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469 } |
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470 } |
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471 /* take CUPS into account first */ |
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472 if (CUPSPrinter.isCupsRunning()) { |
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473 try { |
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474 return new IPPPrintService(name, |
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475 new URL("http://"+ |
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476 CUPSPrinter.getServer()+":"+ |
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477 CUPSPrinter.getPort()+"/"+ |
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478 name)); |
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479 } catch (Exception e) { |
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480 IPPPrintService.debug_println(debugPrefix+ |
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481 " getServiceByName Exception "+ |
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482 e); |
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483 } |
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484 } |
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485 /* fallback if nothing not having a printer at this point */ |
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486 PrintService printer = null; |
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487 if (isMac() || isSysV()) { |
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488 printer = getNamedPrinterNameSysV(name); |
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489 } else if (isAIX()) { |
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490 printer = getNamedPrinterNameAIX(name); |
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491 } else { |
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492 printer = getNamedPrinterNameBSD(name); |
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493 } |
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494 return printer; |
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495 } |
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496 |
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497 private PrintService[] |
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498 getPrintServices(PrintServiceAttributeSet serviceSet) { |
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499 |
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500 if (serviceSet == null || serviceSet.isEmpty()) { |
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501 return getPrintServices(); |
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502 } |
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503 |
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504 /* Typically expect that if a service attribute is specified that |
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505 * its a printer name and there ought to be only one match. |
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506 * Directly retrieve that service and confirm |
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507 * that it meets the other requirements. |
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508 * If printer name isn't mentioned then go a slow path checking |
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509 * all printers if they meet the reqiremements. |
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510 */ |
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511 PrintService[] services; |
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512 PrinterName name = (PrinterName)serviceSet.get(PrinterName.class); |
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513 PrintService defService; |
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514 if (name != null && (defService = getDefaultPrintService()) != null) { |
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515 /* To avoid execing a unix command see if the client is asking |
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516 * for the default printer by name, since we already have that |
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517 * initialised. |
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518 */ |
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519 |
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520 PrinterName defName = defService.getAttribute(PrinterName.class); |
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521 |
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522 if (defName != null && name.equals(defName)) { |
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523 if (matchesAttributes(defService, serviceSet)) { |
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524 services = new PrintService[1]; |
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525 services[0] = defService; |
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526 return services; |
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527 } else { |
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528 return new PrintService[0]; |
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529 } |
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530 } else { |
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531 /* Its not the default service */ |
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532 PrintService service = getServiceByName(name); |
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533 if (service != null && |
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534 matchesAttributes(service, serviceSet)) { |
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535 services = new PrintService[1]; |
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536 services[0] = service; |
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537 return services; |
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538 } else { |
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539 return new PrintService[0]; |
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540 } |
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541 } |
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542 } else { |
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543 /* specified service attributes don't include a name.*/ |
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544 Vector<PrintService> matchedServices = new Vector<>(); |
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545 services = getPrintServices(); |
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546 for (int i = 0; i< services.length; i++) { |
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547 if (matchesAttributes(services[i], serviceSet)) { |
|
548 matchedServices.add(services[i]); |
|
549 } |
|
550 } |
|
551 services = new PrintService[matchedServices.size()]; |
|
552 for (int i = 0; i< services.length; i++) { |
|
553 services[i] = matchedServices.elementAt(i); |
|
554 } |
|
555 return services; |
|
556 } |
|
557 } |
|
558 |
|
559 /* |
|
560 * If service attributes are specified then there must be additional |
|
561 * filtering. |
|
562 */ |
|
563 public PrintService[] getPrintServices(DocFlavor flavor, |
|
564 AttributeSet attributes) { |
|
565 SecurityManager security = System.getSecurityManager(); |
|
566 if (security != null) { |
|
567 security.checkPrintJobAccess(); |
|
568 } |
|
569 PrintRequestAttributeSet requestSet = null; |
|
570 PrintServiceAttributeSet serviceSet = null; |
|
571 |
|
572 if (attributes != null && !attributes.isEmpty()) { |
|
573 |
|
574 requestSet = new HashPrintRequestAttributeSet(); |
|
575 serviceSet = new HashPrintServiceAttributeSet(); |
|
576 |
|
577 Attribute[] attrs = attributes.toArray(); |
|
578 for (int i=0; i<attrs.length; i++) { |
|
579 if (attrs[i] instanceof PrintRequestAttribute) { |
|
580 requestSet.add(attrs[i]); |
|
581 } else if (attrs[i] instanceof PrintServiceAttribute) { |
|
582 serviceSet.add(attrs[i]); |
|
583 } |
|
584 } |
|
585 } |
|
586 |
|
587 PrintService[] services = getPrintServices(serviceSet); |
|
588 if (services.length == 0) { |
|
589 return services; |
|
590 } |
|
591 |
|
592 if (CUPSPrinter.isCupsRunning()) { |
|
593 ArrayList<PrintService> matchingServices = new ArrayList<>(); |
|
594 for (int i=0; i<services.length; i++) { |
|
595 try { |
|
596 if (services[i]. |
|
597 getUnsupportedAttributes(flavor, requestSet) == null) { |
|
598 matchingServices.add(services[i]); |
|
599 } |
|
600 } catch (IllegalArgumentException e) { |
|
601 } |
|
602 } |
|
603 services = new PrintService[matchingServices.size()]; |
|
604 return matchingServices.toArray(services); |
|
605 |
|
606 } else { |
|
607 // We only need to compare 1 PrintService because all |
|
608 // UnixPrintServices are the same anyway. We will not use |
|
609 // default PrintService because it might be null. |
|
610 PrintService service = services[0]; |
|
611 if ((flavor == null || |
|
612 service.isDocFlavorSupported(flavor)) && |
|
613 service.getUnsupportedAttributes(flavor, requestSet) == null) |
|
614 { |
|
615 return services; |
|
616 } else { |
|
617 return new PrintService[0]; |
|
618 } |
|
619 } |
|
620 } |
|
621 |
|
622 /* |
|
623 * return empty array as don't support multi docs |
|
624 */ |
|
625 public MultiDocPrintService[] |
|
626 getMultiDocPrintServices(DocFlavor[] flavors, |
|
627 AttributeSet attributes) { |
|
628 SecurityManager security = System.getSecurityManager(); |
|
629 if (security != null) { |
|
630 security.checkPrintJobAccess(); |
|
631 } |
|
632 return new MultiDocPrintService[0]; |
|
633 } |
|
634 |
|
635 |
|
636 public synchronized PrintService getDefaultPrintService() { |
|
637 SecurityManager security = System.getSecurityManager(); |
|
638 if (security != null) { |
|
639 security.checkPrintJobAccess(); |
|
640 } |
|
641 |
|
642 // clear defaultPrintService |
|
643 defaultPrintService = null; |
|
644 String psuri = null; |
|
645 |
|
646 IPPPrintService.debug_println("isRunning ? "+ |
|
647 (CUPSPrinter.isCupsRunning())); |
|
648 if (CUPSPrinter.isCupsRunning()) { |
|
649 String[] printerInfo = CUPSPrinter.getDefaultPrinter(); |
|
650 if (printerInfo != null && printerInfo.length >= 2) { |
|
651 defaultPrinter = printerInfo[0]; |
|
652 psuri = printerInfo[1]; |
|
653 } |
|
654 } else { |
|
655 if (isMac() || isSysV()) { |
|
656 defaultPrinter = getDefaultPrinterNameSysV(); |
|
657 } else if (isAIX()) { |
|
658 defaultPrinter = getDefaultPrinterNameAIX(); |
|
659 } else { |
|
660 defaultPrinter = getDefaultPrinterNameBSD(); |
|
661 } |
|
662 } |
|
663 if (defaultPrinter == null) { |
|
664 return null; |
|
665 } |
|
666 defaultPrintService = null; |
|
667 if (printServices != null) { |
|
668 for (int j=0; j<printServices.length; j++) { |
|
669 if (defaultPrinter.equals(getPrinterDestName(printServices[j]))) { |
|
670 defaultPrintService = printServices[j]; |
|
671 break; |
|
672 } |
|
673 } |
|
674 } |
|
675 if (defaultPrintService == null) { |
|
676 if (CUPSPrinter.isCupsRunning()) { |
|
677 try { |
|
678 PrintService defaultPS; |
|
679 if ((psuri != null) && !psuri.startsWith("file")) { |
|
680 defaultPS = new IPPPrintService(defaultPrinter, |
|
681 psuri, true); |
|
682 } else { |
|
683 defaultPS = new IPPPrintService(defaultPrinter, |
|
684 new URL("http://"+ |
|
685 CUPSPrinter.getServer()+":"+ |
|
686 CUPSPrinter.getPort()+"/"+ |
|
687 defaultPrinter)); |
|
688 } |
|
689 defaultPrintService = defaultPS; |
|
690 } catch (Exception e) { |
|
691 } |
|
692 } else { |
|
693 defaultPrintService = new UnixPrintService(defaultPrinter); |
|
694 } |
|
695 } |
|
696 |
|
697 return defaultPrintService; |
|
698 } |
|
699 |
|
700 public synchronized void |
|
701 getServicesInbackground(BackgroundLookupListener listener) { |
|
702 if (printServices != null) { |
|
703 listener.notifyServices(printServices); |
|
704 } else { |
|
705 if (lookupListeners == null) { |
|
706 lookupListeners = new Vector<>(); |
|
707 lookupListeners.add(listener); |
|
708 Thread lookupThread = new Thread(this); |
|
709 lookupThread.start(); |
|
710 } else { |
|
711 lookupListeners.add(listener); |
|
712 } |
|
713 } |
|
714 } |
|
715 |
|
716 /* This method isn't used in most cases because we rely on code in |
|
717 * javax.print.PrintServiceLookup. This is needed just for the cases |
|
718 * where those interfaces are by-passed. |
|
719 */ |
|
720 private PrintService[] copyOf(PrintService[] inArr) { |
|
721 if (inArr == null || inArr.length == 0) { |
|
722 return inArr; |
|
723 } else { |
|
724 PrintService []outArr = new PrintService[inArr.length]; |
|
725 System.arraycopy(inArr, 0, outArr, 0, inArr.length); |
|
726 return outArr; |
|
727 } |
|
728 } |
|
729 |
|
730 public void run() { |
|
731 PrintService[] services = getPrintServices(); |
|
732 synchronized (this) { |
|
733 BackgroundLookupListener listener; |
|
734 for (int i=0; i<lookupListeners.size(); i++) { |
|
735 listener = lookupListeners.elementAt(i); |
|
736 listener.notifyServices(copyOf(services)); |
|
737 } |
|
738 lookupListeners = null; |
|
739 } |
|
740 } |
|
741 |
|
742 private String getDefaultPrinterNameBSD() { |
|
743 if (cmdIndex == UNINITIALIZED) { |
|
744 cmdIndex = getBSDCommandIndex(); |
|
745 } |
|
746 String[] names = execCmd(lpcFirstCom[cmdIndex]); |
|
747 if (names == null || names.length == 0) { |
|
748 return null; |
|
749 } |
|
750 |
|
751 if ((cmdIndex==BSD_LPD_NG) && |
|
752 (names[0].startsWith("missingprinter"))) { |
|
753 return null; |
|
754 } |
|
755 return names[0]; |
|
756 } |
|
757 |
|
758 private PrintService getNamedPrinterNameBSD(String name) { |
|
759 if (cmdIndex == UNINITIALIZED) { |
|
760 cmdIndex = getBSDCommandIndex(); |
|
761 } |
|
762 String command = "/usr/sbin/lpc status " + name + lpcNameCom[cmdIndex]; |
|
763 String[] result = execCmd(command); |
|
764 |
|
765 if (result == null || !(result[0].equals(name))) { |
|
766 return null; |
|
767 } |
|
768 return new UnixPrintService(name); |
|
769 } |
|
770 |
|
771 private String[] getAllPrinterNamesBSD() { |
|
772 if (cmdIndex == UNINITIALIZED) { |
|
773 cmdIndex = getBSDCommandIndex(); |
|
774 } |
|
775 String[] names = execCmd(lpcAllCom[cmdIndex]); |
|
776 if (names == null || names.length == 0) { |
|
777 return null; |
|
778 } |
|
779 return names; |
|
780 } |
|
781 |
|
782 static String getDefaultPrinterNameSysV() { |
|
783 String defaultPrinter = "lp"; |
|
784 String command = "/usr/bin/lpstat -d"; |
|
785 |
|
786 String [] names = execCmd(command); |
|
787 if (names == null || names.length == 0) { |
|
788 return defaultPrinter; |
|
789 } else { |
|
790 int index = names[0].indexOf(":"); |
|
791 if (index == -1 || (names[0].length() <= index+1)) { |
|
792 return null; |
|
793 } else { |
|
794 String name = names[0].substring(index+1).trim(); |
|
795 if (name.length() == 0) { |
|
796 return null; |
|
797 } else { |
|
798 return name; |
|
799 } |
|
800 } |
|
801 } |
|
802 } |
|
803 |
|
804 private PrintService getNamedPrinterNameSysV(String name) { |
|
805 |
|
806 String command = "/usr/bin/lpstat -v " + name; |
|
807 String []result = execCmd(command); |
|
808 |
|
809 if (result == null || result[0].indexOf("unknown printer") > 0) { |
|
810 return null; |
|
811 } else { |
|
812 return new UnixPrintService(name); |
|
813 } |
|
814 } |
|
815 |
|
816 private String[] getAllPrinterNamesSysV() { |
|
817 String defaultPrinter = "lp"; |
|
818 String command = "/usr/bin/lpstat -v|/usr/bin/expand|/usr/bin/cut -f3 -d' ' |/usr/bin/cut -f1 -d':' | /usr/bin/sort"; |
|
819 |
|
820 String [] names = execCmd(command); |
|
821 ArrayList<String> printerNames = new ArrayList<>(); |
|
822 for (int i=0; i < names.length; i++) { |
|
823 if (!names[i].equals("_default") && |
|
824 !names[i].equals(defaultPrinter) && |
|
825 !names[i].equals("")) { |
|
826 printerNames.add(names[i]); |
|
827 } |
|
828 } |
|
829 return printerNames.toArray(new String[printerNames.size()]); |
|
830 } |
|
831 |
|
832 private String getDefaultPrinterNameAIX() { |
|
833 String[] names = execCmd(lpNameComAix[aix_lpstat_d]); |
|
834 // Remove headers and bogus entries added by remote printers. |
|
835 names = UnixPrintService.filterPrinterNamesAIX(names); |
|
836 if (names == null || names.length != 1) { |
|
837 // No default printer found |
|
838 return null; |
|
839 } else { |
|
840 return names[0]; |
|
841 } |
|
842 } |
|
843 |
|
844 private PrintService getNamedPrinterNameAIX(String name) { |
|
845 // On AIX there should be no blank after '-v'. |
|
846 String[] result = execCmd(lpNameComAix[aix_lpstat_v] + name); |
|
847 // Remove headers and bogus entries added by remote printers. |
|
848 result = UnixPrintService.filterPrinterNamesAIX(result); |
|
849 if (result == null || result.length != 1) { |
|
850 return null; |
|
851 } else { |
|
852 return new UnixPrintService(name); |
|
853 } |
|
854 } |
|
855 |
|
856 private String[] getAllPrinterNamesAIX() { |
|
857 // Determine all printers of the system. |
|
858 String [] names = execCmd(lpNameComAix[aix_defaultPrinterEnumeration]); |
|
859 |
|
860 // Remove headers and bogus entries added by remote printers. |
|
861 names = UnixPrintService.filterPrinterNamesAIX(names); |
|
862 |
|
863 ArrayList<String> printerNames = new ArrayList<String>(); |
|
864 for ( int i=0; i < names.length; i++) { |
|
865 printerNames.add(names[i]); |
|
866 } |
|
867 return printerNames.toArray(new String[printerNames.size()]); |
|
868 } |
|
869 |
|
870 static String[] execCmd(final String command) { |
|
871 ArrayList<String> results = null; |
|
872 try { |
|
873 final String[] cmd = new String[3]; |
|
874 if (isSysV() || isAIX()) { |
|
875 cmd[0] = "/usr/bin/sh"; |
|
876 cmd[1] = "-c"; |
|
877 cmd[2] = "env LC_ALL=C " + command; |
|
878 } else { |
|
879 cmd[0] = "/bin/sh"; |
|
880 cmd[1] = "-c"; |
|
881 cmd[2] = "LC_ALL=C " + command; |
|
882 } |
|
883 |
|
884 results = AccessController.doPrivileged( |
|
885 new PrivilegedExceptionAction<ArrayList<String>>() { |
|
886 public ArrayList<String> run() throws IOException { |
|
887 |
|
888 Process proc; |
|
889 BufferedReader bufferedReader = null; |
|
890 File f = Files.createTempFile("prn","xc").toFile(); |
|
891 cmd[2] = cmd[2]+">"+f.getAbsolutePath(); |
|
892 |
|
893 proc = Runtime.getRuntime().exec(cmd); |
|
894 try { |
|
895 boolean done = false; // in case of interrupt. |
|
896 while (!done) { |
|
897 try { |
|
898 proc.waitFor(); |
|
899 done = true; |
|
900 } catch (InterruptedException e) { |
|
901 } |
|
902 } |
|
903 |
|
904 if (proc.exitValue() == 0) { |
|
905 FileReader reader = new FileReader(f); |
|
906 bufferedReader = new BufferedReader(reader); |
|
907 String line; |
|
908 ArrayList<String> results = new ArrayList<>(); |
|
909 while ((line = bufferedReader.readLine()) |
|
910 != null) { |
|
911 results.add(line); |
|
912 } |
|
913 return results; |
|
914 } |
|
915 } finally { |
|
916 f.delete(); |
|
917 // promptly close all streams. |
|
918 if (bufferedReader != null) { |
|
919 bufferedReader.close(); |
|
920 } |
|
921 proc.getInputStream().close(); |
|
922 proc.getErrorStream().close(); |
|
923 proc.getOutputStream().close(); |
|
924 } |
|
925 return null; |
|
926 } |
|
927 }); |
|
928 } catch (PrivilegedActionException e) { |
|
929 } |
|
930 if (results == null) { |
|
931 return new String[0]; |
|
932 } else { |
|
933 return results.toArray(new String[results.size()]); |
|
934 } |
|
935 } |
|
936 |
|
937 private class PrinterChangeListener extends Thread { |
|
938 |
|
939 public void run() { |
|
940 int refreshSecs; |
|
941 while (true) { |
|
942 try { |
|
943 refreshServices(); |
|
944 } catch (Exception se) { |
|
945 IPPPrintService.debug_println(debugPrefix+"Exception in refresh thread."); |
|
946 break; |
|
947 } |
|
948 |
|
949 if ((printServices != null) && |
|
950 (printServices.length > minRefreshTime)) { |
|
951 // compute new refresh time 1 printer = 1 sec |
|
952 refreshSecs = printServices.length; |
|
953 } else { |
|
954 refreshSecs = minRefreshTime; |
|
955 } |
|
956 try { |
|
957 sleep(refreshSecs * 1000); |
|
958 } catch (InterruptedException e) { |
|
959 break; |
|
960 } |
|
961 } |
|
962 } |
|
963 } |
|
964 } |
|