| /**************************************************************** |
| * Licensed to the Apache Software Foundation (ASF) under one * |
| * or more contributor license agreements. See the NOTICE file * |
| * distributed with this work for additional information * |
| * regarding copyright ownership. The ASF licenses this file * |
| * to you under the Apache License, Version 2.0 (the * |
| * "License"); you may not use this file except in compliance * |
| * with the License. You may obtain a copy of the License at * |
| * * |
| * http://www.apache.org/licenses/LICENSE-2.0 * |
| * * |
| * Unless required by applicable law or agreed to in writing, * |
| * software distributed under the License is distributed on an * |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY * |
| * KIND, either express or implied. See the License for the * |
| * specific language governing permissions and limitations * |
| * under the License. * |
| ****************************************************************/ |
| |
| package org.apache.james.mime4j.codec; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| import java.io.Reader; |
| import java.io.UnsupportedEncodingException; |
| |
| import org.apache.commons.io.IOUtils; |
| import org.apache.james.mime4j.Charsets; |
| import org.apache.james.mime4j.io.InputStreams; |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| public class QuotedPrintableInputStreamTest { |
| |
| private static String readText(final InputStream is) throws IOException { |
| return IOUtils.toString(is, Charsets.ISO_8859_1.name()); |
| } |
| |
| private static String readTextByOne(final InputStream is) throws IOException { |
| StringBuilder buf = new StringBuilder(); |
| Reader reader = new InputStreamReader(is, Charsets.ISO_8859_1.name()); |
| int ch; |
| while ((ch = reader.read()) != -1) { |
| buf.append((char) ch); |
| } |
| return buf.toString(); |
| } |
| |
| @Test |
| public void testBasicDecode() throws IOException, UnsupportedEncodingException { |
| InputStream bis = InputStreams.createAscii("=e1=e2=E3=E4\r\n"); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
| Assert.assertEquals("\u00e1\u00e2\u00e3\u00e4\r\n", readText(decoder)); |
| } |
| |
| @Test |
| public void testDecodeBufferWrapping() throws IOException, UnsupportedEncodingException { |
| InputStream bis = InputStreams.createAscii("=e1=e2=E3=E4\r\n=e1=e2=E3=E4\r\n=e1=e2=E3=E4\r\n=e1=e2=E3=E4\r\n=e1=e2=E3=E4\r\n"); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
| Assert.assertEquals("\u00e1\u00e2\u00e3\u00e4\r\n\u00e1\u00e2\u00e3\u00e4\r\n\u00e1\u00e2\u00e3" + |
| "\u00e4\r\n\u00e1\u00e2\u00e3\u00e4\r\n\u00e1\u00e2\u00e3\u00e4\r\n", readText(decoder)); |
| } |
| |
| @Test |
| public void testInvalidValueDecode() throws IOException, UnsupportedEncodingException { |
| InputStream bis = InputStreams.createAscii("=e1=g2=E3=E4\r\n"); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
| Assert.assertEquals("\u00e1=g2\u00e3\u00e4\r\n", readText(decoder)); |
| } |
| |
| @Test |
| public void testDecodeTrailingBlanks() throws IOException, UnsupportedEncodingException { |
| InputStream bis = InputStreams.createAscii(" =e1 =e2 =E3\t=E4 \t \t \r\n"); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
| Assert.assertEquals(" \u00e1 \u00e2 \u00e3\t\u00e4\r\n", readText(decoder)); |
| } |
| |
| @Test |
| public void testCanonicalSoftBreakDecode() throws IOException, UnsupportedEncodingException { |
| InputStream bis = InputStreams.createAscii("Soft line =\r\nHard line \r\n"); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
| Assert.assertEquals("Soft line Hard line\r\n", readText(decoder)); |
| } |
| |
| @Test |
| public void testSoftBreakStrictMode() throws IOException { |
| String input = "<?xml version=3D\"1.0\" standalone=3D\"no\"?>\r\n" + |
| "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/=\r\n" + |
| "SVG/1.1/DTD/svg11.dtd\" >\r\n"; |
| String expected = "<?xml version=\"1.0\" standalone=\"no\"?>\r\n" + |
| "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\" \"http://www.w3.org/Graphics/" + |
| "SVG/1.1/DTD/svg11.dtd\" >\r\n"; |
| InputStream bis = InputStreams.createAscii(input); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis, DecodeMonitor.STRICT); |
| Assert.assertEquals(expected, readText(decoder)); |
| } |
| |
| @Test |
| public void testInvalidCR() throws IOException, UnsupportedEncodingException { |
| InputStream bis = InputStreams.createAscii("Invalid=\rCR\rHard line \r\n"); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
| // TODO is this what we really expect from decoding a stream including CR with no LF? |
| Assert.assertEquals("Invalid=\rCR\rHard line\r\n", readText(decoder)); |
| } |
| |
| @Test |
| public void testInvalidCRStrictMode() throws IOException { |
| InputStream bis = InputStreams.createAscii("Invalid=\rCR\rHard line \r\n"); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis, DecodeMonitor.STRICT); |
| try { |
| readText(decoder); |
| Assert.fail("IOException should have been thrown"); |
| } catch (IOException expected) { |
| } |
| } |
| |
| @Test |
| public void testSoftBreakLoneLFDecode() throws IOException, UnsupportedEncodingException { |
| InputStream bis = InputStreams.createAscii("Soft line =\nHard line \r\n"); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
| Assert.assertEquals("Soft line Hard line\r\n", readText(decoder)); |
| } |
| |
| @Test |
| public void testSpaceBeforeSoftBreakStrictMode() throws IOException, UnsupportedEncodingException { |
| InputStream bis = InputStreams.createAscii("text before eq sign =\r\n text after LF"); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis,DecodeMonitor.STRICT); |
| Assert.assertEquals("text before eq sign text after LF", readTextByOne(decoder)); |
| } |
| |
| @Test |
| public void testSoftBreakTrailingBalnksDecode() throws IOException, UnsupportedEncodingException { |
| InputStream bis = InputStreams.createAscii("Soft line = \t \r\nHard line \r\n"); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
| Assert.assertEquals("Soft line Hard line\r\n", readText(decoder)); |
| } |
| |
| @Test |
| public void testBrokenSoftBreakDecode() throws IOException, UnsupportedEncodingException { |
| InputStream bis = InputStreams.createAscii("Soft line =\rHard line \r\n"); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
| Assert.assertEquals("Soft line =\rHard line\r\n", readText(decoder)); |
| } |
| |
| @Test |
| public void testEscapedEQDecode() throws IOException, UnsupportedEncodingException { |
| InputStream bis = InputStreams.createAscii("width==340 height=3d200\r\n"); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
| Assert.assertEquals("width=340 height=200\r\n", readText(decoder)); |
| // TODO this could be even decoded as width=40 height=200. |
| } |
| |
| @Test |
| public void testBrokenEscapedEQDecode() throws IOException, UnsupportedEncodingException { |
| /* |
| * This isn't valid qp (==) but it is known to occur in certain |
| * messages, especially spam. |
| */ |
| InputStream bis = InputStreams.createAscii("width==\r\n340 height=3d200\r\n"); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
| Assert.assertEquals("width=340 height=200\r\n", readText(decoder)); |
| } |
| |
| @Test |
| public void testSpacesBeforeEOL() throws IOException, UnsupportedEncodingException { |
| InputStream bis = InputStreams.createAscii("some \r\n spaced\t\r\ncontent \t \r\n"); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
| Assert.assertEquals("some\r\n spaced\r\ncontent\r\n", readText(decoder)); |
| } |
| |
| |
| @Test |
| public void testDecodeEndOfStream1() throws IOException, UnsupportedEncodingException { |
| InputStream bis = InputStreams.createAscii("01234567"); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(6, bis, false); |
| Assert.assertEquals("01234567", readText(decoder)); |
| } |
| |
| @Test |
| public void testDecodeEndOfStream2() throws IOException, UnsupportedEncodingException { |
| InputStream bis = InputStreams.createAscii("012345\r"); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(6, bis, false); |
| Assert.assertEquals("012345", readText(decoder)); |
| } |
| |
| @Test |
| public void testDecodeEndOfStream3() throws IOException, UnsupportedEncodingException { |
| InputStream bis = InputStreams.createAscii("012345\n"); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(6, bis, false); |
| Assert.assertEquals("012345\r\n", readText(decoder)); |
| } |
| |
| @Test |
| public void testDecodeEndOfStream4() throws IOException, UnsupportedEncodingException { |
| InputStream bis = InputStreams.createAscii("01234= "); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(6, bis, false); |
| Assert.assertEquals("01234", readText(decoder)); |
| } |
| |
| @Test |
| public void testDecodeEndOfStream5() throws IOException, UnsupportedEncodingException { |
| InputStream bis = InputStreams.createAscii("01234=\r\n"); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(6, bis, false); |
| Assert.assertEquals("01234", readText(decoder)); |
| } |
| |
| @Test |
| public void testDecodeEndOfStream6() throws IOException, UnsupportedEncodingException { |
| InputStream bis = InputStreams.createAscii("01234\r\n"); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(6, bis, false); |
| Assert.assertEquals("01234\r\n", readText(decoder)); |
| } |
| |
| @Test |
| public void testDecodePrematureClose() throws IOException, UnsupportedEncodingException { |
| InputStream bis = InputStreams.createAscii("=e1=e2=E3=E4\r\n"); |
| QuotedPrintableInputStream decoder = new QuotedPrintableInputStream(bis); |
| Assert.assertEquals('\u00e1', decoder.read()); |
| Assert.assertEquals('\u00e2', decoder.read()); |
| decoder.close(); |
| |
| try { |
| decoder.read(); |
| Assert.fail(); |
| } catch (IOException expected) { |
| } |
| } |
| |
| } |