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1
50 package com.lowagie.tools.plugins;
51
52 import java.io.File;
53 import java.io.FileOutputStream;
54
55 import javax.swing.JInternalFrame;
56 import javax.swing.JOptionPane;
57
58 import com.lowagie.text.pdf.PdfEncryptor;
59 import com.lowagie.text.pdf.PdfReader;
60 import com.lowagie.text.pdf.PdfWriter;
61 import com.lowagie.tools.arguments.BitsetArgument;
62 import com.lowagie.tools.arguments.FileArgument;
63 import com.lowagie.tools.arguments.OptionArgument;
64 import com.lowagie.tools.arguments.PdfFilter;
65 import com.lowagie.tools.arguments.ToolArgument;
66
67
70 public class Encrypt extends AbstractTool {
71 private final static int PERMISSIONS[] = {
72 PdfWriter.AllowPrinting,
73 PdfWriter.AllowModifyContents,
74 PdfWriter.AllowCopy,
75 PdfWriter.AllowModifyAnnotations,
76 PdfWriter.AllowFillIn,
77 PdfWriter.AllowScreenReaders,
78 PdfWriter.AllowAssembly,
79 PdfWriter.AllowDegradedPrinting};
80 private final static String PERMISSION_OPTIONS[] = {
81 "AllowPrinting",
82 "AllowModifyContents",
83 "AllowCopy",
84 "AllowModifyAnnotations",
85 "AllowFillIn (128 bit only)",
86 "AllowScreenReaders (128 bit only)",
87 "AllowAssembly (128 bit only)",
88 "AllowDegradedPrinting (128 bit only)"
89 };
90
91
92
95 public Encrypt() {
96 arguments.add(new FileArgument(this, "srcfile", "The file you want to encrypt", false, new PdfFilter()));
97 arguments.add(new FileArgument(this, "destfile", "The file to which the encrypted PDF has to be written", true, new PdfFilter()));
98 arguments.add(new ToolArgument(this, "userpassword", "The userpassword you want to add to the PDF file", String.class.getName()));
99 arguments.add(new ToolArgument(this, "ownerpassword", "The ownerpassword you want to add to the PDF file", String.class.getName()));
100 arguments.add(new BitsetArgument(this, "permissions", "Permissions on the file", PERMISSION_OPTIONS));
101 OptionArgument oa = new OptionArgument(this, "strength", "Strength of the encryption");
102 oa.addOption("40 bit encryption", "40");
103 oa.addOption("128 bit encryption", "128");
104 arguments.add(oa);
105 }
106
107
110 protected void createFrame() {
111 internalFrame = new JInternalFrame("Encrypt", true, true, true);
112 internalFrame.setSize(300, 80);
113 internalFrame.setJMenuBar(getMenubar());
114 }
115
116
119 public void execute() {
120 try {
121 if (getValue("srcfile") == null) throw new InstantiationException("You need to choose a sourcefile");
122 if (getValue("destfile") == null) throw new InstantiationException("You need to choose a destination file");
123 int permissions = 0;
124 String p = (String)getValue("permissions");
125 if (p != null) {
126 for (int k = 0; k < p.length(); ++k) {
127 permissions |= (p.charAt(k) == '0' ? 0 : PERMISSIONS[k]);
128 }
129 }
130 byte[] userpassword = null;
131 if (getValue("userpassword") != null) {
132 userpassword = ((String)getValue("userpassword")).getBytes();
133 }
134 byte[] ownerpassword = null;
135 if (getValue("ownerpassword") != null) {
136 userpassword = ((String)getValue("ownerpassword")).getBytes();
137 }
138 PdfReader reader = new PdfReader(((File)getValue("srcfile")).getAbsolutePath());
139 PdfEncryptor.encrypt(
140 reader,
141 new FileOutputStream((File)getValue("destfile")),
142 userpassword,
143 ownerpassword,
144 permissions,
145 "128".equals(getValue("strength"))
146 );
147 }
148 catch(Exception e) {
149 JOptionPane.showMessageDialog(internalFrame,
150 e.getMessage(),
151 e.getClass().getName(),
152 JOptionPane.ERROR_MESSAGE);
153 System.err.println(e.getMessage());
154 }
155 }
156
157
160 public void valueHasChanged(ToolArgument arg) {
161 if (internalFrame == null) {
162 return;
164 }
165 }
167
168
172 public static void main(String[] args) {
173 Encrypt tool = new Encrypt();
174 if (args.length < 2) {
175 System.err.println(tool.getUsage());
176 }
177 tool.setArguments(args);
178 tool.execute();
179 }
180
181
184 protected File getDestPathPDF() throws InstantiationException {
185 return (File)getValue("destfile");
186 }
187
188 }
189 |
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