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BAEL-276 - URL encoding

This commit is contained in:
slavisa-baeldung 2016-10-22 07:16:14 +02:00
parent a65bad7c1f
commit d55903a667
1 changed files with 59 additions and 13 deletions
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72
core-java-8/src/test/java/com/baeldung/encoderdecoder/EncoderDecoder.java
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@ -3,36 +3,82 @@ package com.baeldung.encoderdecoder;
import org.hamcrest.CoreMatchers; import org.hamcrest.CoreMatchers;
import org.junit.Assert; import org.junit.Assert;
import org.junit.Test; import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.UnsupportedEncodingException; import java.io.UnsupportedEncodingException;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLDecoder; import java.net.URLDecoder;
import java.net.URLEncoder; import java.net.URLEncoder;
import java.nio.charset.StandardCharsets; import java.nio.charset.StandardCharsets;
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.function.Function;
import java.util.stream.Collectors;
public class EncoderDecoder { public class EncoderDecoder {
@Test private static final String URL = "http://www.baeldung.com?key1=value+1&key2=value%40%21%242&key3=value%253";
public void givenPlainURL_whenUsingUTF8EncodingScheme_thenEncodeURL() throws UnsupportedEncodingException { private static final Logger LOGGER = LoggerFactory.getLogger(EncoderDecoder.class);
String plainURL = "http://www.baeldung.com" ;
String encodedURL = URLEncoder.encode(plainURL, StandardCharsets.UTF_8.toString());
Assert.assertThat("http%3A%2F%2Fwww.baeldung.com", CoreMatchers.is(encodedURL)); private String encodeValue(String value) {
String encoded = null;
try {
encoded = URLEncoder.encode(value, StandardCharsets.UTF_8.toString());
} catch (UnsupportedEncodingException e) {
LOGGER.error("Error encoding parameter {}", e.getMessage(), e);
}
return encoded;
}
private String decode(String value) {
String decoded = null;
try {
decoded = URLDecoder.decode(value, StandardCharsets.UTF_8.toString());
} catch (UnsupportedEncodingException e) {
LOGGER.error("Error encoding parameter {}", e.getMessage(), e);
}
return decoded;
} }
@Test @Test
public void givenEncodedURL_whenUsingUTF8EncodingScheme_thenDecodeURL() throws UnsupportedEncodingException { public void givenURL_whenAnalyze_thenCorrect() throws Exception {
String encodedURL = "http%3A%2F%2Fwww.baeldung.com" ; URL url = new URL(URL);
String decodedURL = URLDecoder.decode(encodedURL, StandardCharsets.UTF_8.toString());
Assert.assertThat("http://www.baeldung.com", CoreMatchers.is(decodedURL)); Assert.assertThat(url.getProtocol(), CoreMatchers.is("http"));
Assert.assertThat(url.getHost(), CoreMatchers.is("www.baeldung.com"));
Assert.assertThat(url.getQuery(), CoreMatchers.is("key1=value+1&key2=value%40%21%242&key3=value%253"));
} }
@Test @Test
public void givenEncodedURL_whenUsingWrongEncodingScheme_thenDecodeInvalidURL() throws UnsupportedEncodingException { public void givenRequestParam_whenUTF8Scheme_thenEncode() throws Exception {
String encodedURL = "http%3A%2F%2Fwww.baeldung.com"; Map<String, String> requestParams = new HashMap<>();
requestParams.put("key1", "value 1");
requestParams.put("key2", "value@!$2");
requestParams.put("key3", "value%3");
String decodedURL = URLDecoder.decode(encodedURL, StandardCharsets.UTF_16.toString()); String encodedQuery = requestParams.keySet().stream()
.map(key -> key + "=" + encodeValue(requestParams.get(key)))
.collect(Collectors.joining("&"));
String encodedURL = "http://www.baeldung.com?" + encodedQuery;
Assert.assertFalse("http://www.baeldung.com".equals(decodedURL)); Assert.assertThat(URL, CoreMatchers.is(encodedURL));
} }
@Test
public void givenRequestParam_whenUTF8Scheme_thenDecodeRequestParams() throws Exception {
URL url = new URL(URL);
String query = url.getQuery();
String decodedQuery = Arrays.stream(query.split("&"))
.map(param -> param.split("=")[0] + "=" + decode(param.split("=")[1]))
.collect(Collectors.joining("&"));
Assert.assertEquals(
"http://www.baeldung.com?key1=value 1&key2=value@!$2&key3=value%3", url.getProtocol() + "://" + url.getHost() + "?" + decodedQuery);
}
} }