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| |
| package org.apache.james.mime4j.codec; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import java.io.UnsupportedEncodingException; |
| import java.nio.charset.Charset; |
| |
| public class DecoderUtilTest { |
| |
| @Test |
| public void testDecodeB() throws UnsupportedEncodingException { |
| String s = DecoderUtil.decodeB("VGhpcyBpcyB0aGUgcGxhaW4gd" |
| + "GV4dCBtZXNzYWdlIQ==", "ISO8859-1", DecodeMonitor.STRICT); |
| Assert.assertEquals("This is the plain text message!", s); |
| } |
| |
| @Test |
| public void testDecodeQ() throws UnsupportedEncodingException { |
| String s = DecoderUtil.decodeQ("=e1_=e2=09=E3_=E4_", "ISO8859-1", DecodeMonitor.STRICT); |
| Assert.assertEquals("\u00e1 \u00e2\t\u00e3 \u00e4 ", s); |
| } |
| |
| @Test |
| public void testNonEncodedWordsAreIgnored() { |
| Assert.assertEquals("", DecoderUtil.decodeEncodedWords("")); |
| Assert.assertEquals("Yada yada", DecoderUtil.decodeEncodedWords("Yada yada")); |
| } |
| |
| @Test |
| public void testDecodeSomeEncodedWords() { |
| Assert.assertEquals(" \u00e1\u00e2\u00e3\t\u00e4", |
| DecoderUtil.decodeEncodedWords("=?iso-8859-1?Q?_=20=e1=e2=E3=09=E4?=")); |
| Assert.assertEquals("Word 1 ' \u00e2\u00e3\t\u00e4'. Word 2 ' \u00e2\u00e3\t\u00e4'", |
| DecoderUtil.decodeEncodedWords("Word 1 '=?iso-8859-1?Q?_=20=e2=E3=09=E4?=" |
| + "'. Word 2 '=?iso-8859-1?q?_=20=e2=E3=09=E4?='")); |
| Assert.assertEquals("=?iso-8859-YADA?Q?_=20=t1=e2=E3=09=E4?=", |
| DecoderUtil.decodeEncodedWords("=?iso-8859-YADA?Q?_=20=t1=e2=E3=09=E4?=")); |
| Assert.assertEquals("A short text", |
| DecoderUtil.decodeEncodedWords("=?US-ASCII?B?QSBzaG9ydCB0ZXh0?=")); |
| Assert.assertEquals("A short text again!", |
| DecoderUtil.decodeEncodedWords("=?US-ASCII?b?QSBzaG9ydCB0ZXh0IGFnYWluIQ==?=")); |
| } |
| |
| @Test |
| public void testDecodeJapaneseEncodedWords() { |
| String enc = "=?ISO-2022-JP?B?GyRCTCQbKEobJEI+NRsoShskQkJ6GyhKGyRCOS0bKEo=?= " |
| + "=?ISO-2022-JP?B?GyRCOXAbKEobJEIiKBsoShskQiU1GyhKGyRCJSQbKEo=?= " |
| + "=?ISO-2022-JP?B?GyRCJUkbKEobJEIlUxsoShskQiU4GyhKGyRCJU0bKEo=?= " |
| + "=?ISO-2022-JP?B?GyRCJTkbKEobJEIkThsoShskQjdoGyhKGyRCRGobKEo=?= " |
| + "=?ISO-2022-JP?B?GyRCSEcbKEobJEIkRxsoShskQiQ5GyhKGyRCISobKEo=?="; |
| |
| String dec = DecoderUtil.decodeEncodedWords(enc); |
| Assert.assertEquals("\u672A\u627F\u8AFE\u5E83\u544A\u203B\u30B5\u30A4\u30C9\u30D3" |
| + "\u30B8\u30CD\u30B9\u306E\u6C7A\u5B9A\u7248\u3067\u3059\uFF01", dec); |
| } |
| |
| @Test |
| public void testDecodeJapaneseEncodedWordsWithFallback() { |
| String enc = "=?random?B?GyRCTCQbKEobJEI+NRsoShskQkJ6GyhKGyRCOS0bKEo=?= " |
| + "=?garbage?B?GyRCOXAbKEobJEIiKBsoShskQiU1GyhKGyRCJSQbKEo=?= " |
| + "=?charset?B?GyRCJUkbKEobJEIlUxsoShskQiU4GyhKGyRCJU0bKEo=?= " |
| + "=?name?B?GyRCJTkbKEobJEIkThsoShskQjdoGyhKGyRCRGobKEo=?= " |
| + "=?trash?B?GyRCSEcbKEobJEIkRxsoShskQiQ5GyhKGyRCISobKEo=?="; |
| |
| String dec = DecoderUtil.decodeEncodedWords(enc, Charset.forName("ISO-2022-JP")); |
| Assert.assertEquals("\u672A\u627F\u8AFE\u5E83\u544A\u203B\u30B5\u30A4\u30C9\u30D3" |
| + "\u30B8\u30CD\u30B9\u306E\u6C7A\u5B9A\u7248\u3067\u3059\uFF01", dec); |
| } |
| |
| @Test |
| public void testInvalidEncodedWordsAreIgnored() { |
| Assert.assertEquals("=?iso8859-1?Q?=", DecoderUtil.decodeEncodedWords("=?iso8859-1?Q?=")); |
| Assert.assertEquals("=?iso8859-1?b?=", DecoderUtil.decodeEncodedWords("=?iso8859-1?b?=")); |
| Assert.assertEquals("=?ISO-8859-1?Q?", DecoderUtil.decodeEncodedWords("=?ISO-8859-1?Q?")); |
| Assert.assertEquals("=?ISO-8859-1?R?abc?=", DecoderUtil.decodeEncodedWords("=?ISO-8859-1?R?abc?=")); |
| Assert.assertEquals("test =?ISO-8859-1?R?abc?=", DecoderUtil.decodeEncodedWords("test =?ISO-8859-1?R?abc?=")); |
| } |
| |
| @Test |
| public void testEmptyEncodedTextIsIgnored() { |
| // encoded-text requires at least one character according to rfc 2047 |
| Assert.assertEquals("=?ISO-8859-1?Q??=", DecoderUtil.decodeEncodedWords("=?ISO-8859-1?Q??=")); |
| Assert.assertEquals("=?ISO-8859-1?B??=", DecoderUtil.decodeEncodedWords("=?ISO-8859-1?B??=")); |
| } |
| |
| // see MIME4J-104 |
| @Test |
| public void testWhiteSpaceBetweenEncodedWordsGetsRemoved() { |
| Assert.assertEquals("a", DecoderUtil.decodeEncodedWords("=?ISO-8859-1?Q?a?=")); |
| Assert.assertEquals("a b", DecoderUtil.decodeEncodedWords("=?ISO-8859-1?Q?a?= b")); |
| Assert.assertEquals("ab", DecoderUtil.decodeEncodedWords("=?ISO-8859-1?Q?a?= =?ISO-8859-1?Q?b?=")); |
| Assert.assertEquals("ab", DecoderUtil.decodeEncodedWords("=?ISO-8859-1?Q?a?= =?ISO-8859-1?Q?b?=")); |
| Assert.assertEquals("ab", DecoderUtil.decodeEncodedWords("=?ISO-8859-1?Q?a?=\r\n =?ISO-8859-1?Q?b?=")); |
| Assert.assertEquals("a b", DecoderUtil.decodeEncodedWords("=?ISO-8859-1?Q?a_b?=")); |
| Assert.assertEquals("a b", DecoderUtil.decodeEncodedWords("=?ISO-8859-1?Q?a?= =?ISO-8859-2?Q?_b?=")); |
| } |
| |
| // see MIME4J-138 |
| @Test |
| public void testEncodedTextMayStartWithAnEqualsSign() { |
| Assert.assertEquals(" foo", DecoderUtil.decodeEncodedWords("=?utf-8?Q?=20foo?=")); |
| Assert.assertEquals("Re: How to place a view at the bottom with a 100% width", |
| DecoderUtil.decodeEncodedWords("=?utf-8?Q?Re:=20How=20to=20place=20a=20view=20at=20the=20bottom?= " |
| + "=?utf-8?Q?=20with=20a=20100%=20width?=")); |
| Assert.assertEquals("Test \u00fc and more", |
| DecoderUtil.decodeEncodedWords("Test =?ISO-8859-1?Q?=FC_?= =?ISO-8859-1?Q?and_more?=")); |
| } |
| |
| // see MIME4J-142 |
| @Test |
| public void testEncodedTextMayContainDollarSign() { |
| Assert.assertEquals("variable ${target.nl}", DecoderUtil.decodeEncodedWords("=?utf-8?Q?variable=20${target.nl}?=")); |
| } |
| |
| // see MIME4J-209 |
| @Test |
| public void testEncodedTextMayContainQuestionMark() { |
| Assert.assertEquals("?", DecoderUtil.decodeEncodedWords("=?ISO-8859-1?Q???=")); |
| } |
| |
| @Test |
| public void testNonWhiteSpaceBetweenEncodedWordsIsRetained() { |
| Assert.assertEquals("a b c", DecoderUtil.decodeEncodedWords("=?ISO-8859-1?Q?a?= b =?ISO-8859-1?Q?c?=")); |
| Assert.assertEquals("a\rb\nc", DecoderUtil.decodeEncodedWords("=?ISO-8859-1?Q?a?=\rb\n=?ISO-8859-1?Q?c?=")); |
| } |
| |
| @Test |
| public void testTextBeforeAndAfterEncodedWordIsRetained() { |
| Assert.assertEquals(" a b c ", DecoderUtil.decodeEncodedWords(" =?ISO-8859-1?Q?a?= b =?ISO-8859-1?Q?c?= ")); |
| Assert.assertEquals("! a b c !", DecoderUtil.decodeEncodedWords("! =?ISO-8859-1?Q?a?= b =?ISO-8859-1?Q?c?= !")); |
| } |
| |
| @Test |
| public void testFunnyInputDoesNotRaiseOutOfMemoryError() { |
| // Bug detected on June 7, 2005. Decoding the following string caused OutOfMemoryError. |
| Assert.assertEquals("=3?!!\\=?\"!g6P\"!Xp:\"!", DecoderUtil.decodeEncodedWords("=3?!!\\=?\"!g6P\"!Xp:\"!")); |
| } |
| } |