Browse Source

File encrypter done!#

JaseG256 6 years ago
parent
commit
3269f5b6fc
5 changed files with 119 additions and 16 deletions
  1. 1
    0
      BogusFile
  2. 55
    13
      Crypto/src/ROT13.java
  3. 30
    2
      Crypto/src/ROT13Test.java
  4. 19
    0
      SimpleCrypt.iml
  5. 14
    1
      pom.xml

+ 1
- 0
BogusFile View File

@@ -0,0 +1 @@
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+Guvf svyr arrqf gb or ernq naq rapelcgrq. Vg pna nyfb or hfrq sbe svyr ernqvat cenpgvpr!

+ 55
- 13
Crypto/src/ROT13.java View File

@@ -1,32 +1,74 @@
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+import java.io.*;
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+import java.util.ArrayList;
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+import java.util.logging.Logger;
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+
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 import static java.lang.Character.isLowerCase;
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 import static java.lang.Character.isUpperCase;
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 import static java.lang.Character.toLowerCase;
4 8
 
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-public class ROT13  {
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+public class ROT13 {
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-    ROT13(Character cs, Character cf) {
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-    }
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+    private int shifter;
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-    ROT13() {
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-    }
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+    public ROT13(Character cs, Character cf) { shifter = cf - cs; }
12 14
 
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+    public ROT13() { this.shifter = 13; }
13 16
 
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-    public String crypt(String text) throws UnsupportedOperationException {
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+    public String crypt(String text) throws UnsupportedOperationException
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+    {
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+        StringBuilder sb = new StringBuilder();
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-        return "";
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+        for (int i = 0; i < text.length(); i++)
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+        {
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+            sb = (!Character.isLetter(text.charAt(i))) ? sb.append(text.charAt(i)) :
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+                    (Character.isUpperCase(text.charAt(i))) ?
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+                            sb.append((char) (((int) text.charAt(i) + shifter - 65) % 26 + 65)) :
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+                            sb.append((char) (((int) text.charAt(i) + shifter - 97) % 26 + 97));
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+        }
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+        return sb.toString();
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     }
18 30
 
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-    public String encrypt(String text) {
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-        return text;
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+
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+    public String encrypt(String text) { return crypt(text); }
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+
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+    public String decrypt(String text) { return crypt(text); }
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+
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+    public static String rotate(String s, Character c)
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+    {
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+        String rotated = s.substring(s.indexOf(c)) + s.substring(0, s.indexOf(c)); return rotated;
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     }
22 40
 
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-    public String decrypt(String text) {
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-        return text;
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+    public String encryptFile(File fileIn, String fileOut)
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+    {
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+        String fileInput;  StringBuilder builder = new StringBuilder();  BufferedReader reader = null;
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+
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+        try { reader = new BufferedReader(new FileReader(fileIn));
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+
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+            while ((fileInput = reader.readLine()) != null) { builder.append(crypt(fileInput)); } }
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+
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+          catch (FileNotFoundException e) { System.out.println("Unable to read file " + fileIn); }
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+          catch (IOException e) { e.printStackTrace(); }
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+
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+        finally { if (reader != null) { try { reader.close(); } catch (IOException e) { e.printStackTrace(); } } }
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+
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+        BufferedWriter writer = null;
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+
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+        try { writer = new BufferedWriter(new FileWriter(new File(fileOut))); writer.write(builder.toString()); }
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+
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+            catch (IOException e) { e.printStackTrace(); }
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+
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+            finally { try { if (writer != null) { writer.close(); } } catch (IOException e) { e.printStackTrace(); }
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+        }
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+        return builder.toString();
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     }
26 64
 
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-    public static String rotate(String s, Character c) {
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-        return "";
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+    public static void main(String[] args)
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+    {
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+        ROT13 rot13 = new ROT13();
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+        File file = new File("/Users/jasong/Labs/ZCW-ORM-SimpleAccount/.idea/EnCryptMe.txt");
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+        rot13.encryptFile(file, "/Users/jasong/Labs/ZCW-ORM-SimpleAccount/.idea/IamEncrypted.txt");
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     }
31 72
 
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+
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 }

+ 30
- 2
Crypto/src/ROT13Test.java View File

@@ -1,6 +1,13 @@
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-import org.junit.Test;
2 1
 
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-import static org.junit.Assert.*;
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+import org.junit.jupiter.api.Test;
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+
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+import java.io.BufferedReader;
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+import java.io.File;
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+import java.io.FileNotFoundException;
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+import java.io.FileReader;
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+
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+import static org.junit.jupiter.api.Assertions.assertEquals;
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+import static org.junit.jupiter.api.Assertions.assertTrue;
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 public class ROT13Test {
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@@ -88,4 +95,25 @@ public class ROT13Test {
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         assertTrue(actual.equals(Q1));
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     }
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+    @Test
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+    public void encryptFileTest1() {
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+        ROT13 rot13 = new ROT13();
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+//        rot13.encryptFile(new File("/Users/jasong/Labs/ZCW-ORM-SimpleAccount/.idea/EnCryptMe.txt"));
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+        String expected = rot13.encrypt("This file needs to be read and encrypted. " +
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+                "It can also be used for file reading practice!");
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+        String actual = rot13.encryptFile(new File("/Users/jasong/Labs/ZCW-ORM-SimpleAccount/.idea/EnCryptMe.txt"), "BogusFile");
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+        assertEquals(expected, actual);
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+    }
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+
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+    @Test
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+    public void encryptFileTest2() {
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+        ROT13 rot13 = new ROT13();
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+        File file = new File("/Users/jasong/Labs/ZCW-ORM-SimpleAccount/.idea/EnCryptMe.txt");
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+//        rot13.encryptFile(new File("/Users/jasong/Labs/ZCW-ORM-SimpleAccount/.idea/EnCryptMe.txt"));
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+        String expected = rot13.encrypt("This file needs to be read and encrypted. " +
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+                                "It can also be used for file reading practice!");
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+        String actual = rot13.encryptFile(file, "BogusFile");
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+        assertEquals(expected, actual);
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+    }
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+
91 119
 }

+ 19
- 0
SimpleCrypt.iml View File

@@ -0,0 +1,19 @@
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+<?xml version="1.0" encoding="UTF-8"?>
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+<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
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+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_5">
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+    <output url="file://$MODULE_DIR$/target/classes" />
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+    <output-test url="file://$MODULE_DIR$/target/test-classes" />
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+    <content url="file://$MODULE_DIR$">
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+      <sourceFolder url="file://$MODULE_DIR$/Crypto/src" isTestSource="false" />
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+      <excludeFolder url="file://$MODULE_DIR$/target" />
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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" scope="TEST" name="Maven: junit:junit:4.12" level="project" />
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+    <orderEntry type="library" scope="TEST" name="Maven: org.hamcrest:hamcrest-core:1.3" level="project" />
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+    <orderEntry type="library" name="Maven: org.junit.jupiter:junit-jupiter-api:5.3.0-M1" level="project" />
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+    <orderEntry type="library" name="Maven: org.apiguardian:apiguardian-api:1.0.0" level="project" />
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+    <orderEntry type="library" name="Maven: org.opentest4j:opentest4j:1.1.0" level="project" />
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+    <orderEntry type="library" name="Maven: org.junit.platform:junit-platform-commons:1.3.0-M1" level="project" />
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+  </component>
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+</module>

+ 14
- 1
pom.xml View File

@@ -8,5 +8,18 @@
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     <artifactId>SimpleCrypt</artifactId>
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     <version>1.0-SNAPSHOT</version>
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-
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+<dependencies><!-- https://mvnrepository.com/artifact/junit/junit -->
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+    <dependency>
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+        <groupId>junit</groupId>
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+        <artifactId>junit</artifactId>
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+        <version>4.12</version>
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+        <scope>test</scope>
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+    </dependency>
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+    <dependency>
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+        <groupId>org.junit.jupiter</groupId>
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+        <artifactId>junit-jupiter-api</artifactId>
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+        <version>RELEASE</version>
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+        <scope>compile</scope>
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+    </dependency>
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+</dependencies>
12 25
 </project>