rife2/rife2-template-renderers
rife2/rife2-template-renderers
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Added ShortenUrl

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This commit is contained in:
Erik C. Thauvin 2023-03-17 02:53:01 -07:00
parent 14080895c7
commit 9e9d2d6885
5 changed files with 112 additions and 12 deletions
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40
lib/src/main/java/rife/render/RenderUtils.java
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@ -20,7 +20,12 @@ package rife.render;
import rife.template.Template;
import rife.tools.Convert;
import rife.tools.Localization;
import rife.tools.StringUtils;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.temporal.ChronoField;
@ -130,6 +135,39 @@ public final class RenderUtils {
return output.toString();
}
/**
* <p>Shortens a URL using <a href="https://is.gd/">is.gid</a>. The URL string must a valid http or https URL.</p>
*
* <p>Based on <a href="https://github.com/ethauvin/isgd-shorten">isgd-shorten</a></p>
*
* @param url the source URL
* @return the short URL
*/
public static String shortenUrl(String url) {
if (url == null || url.isBlank() || !url.matches("^[Hh][Tt][Tt][Pp][Ss]?:\\/\\/\\w.*")) {
return url;
}
var shorten = url;
try {
var connection = (HttpURLConnection) new URL(
String.format("https://is.gd/create.php?format=simple&url=%s", StringUtils.decodeUrl(url.trim())))
.openConnection();
connection.setRequestProperty(
"User-Agent", "Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/111.0"
);
var responseCode = connection.getResponseCode();
if (responseCode >= 200 && responseCode <= 399) {
try (var inputStream = connection.getInputStream()) {
shorten = new String(inputStream.readAllBytes(), StandardCharsets.UTF_8);
}
}
} catch (IOException ignore) {
// do nothing
}
return shorten;
}
/**
* Swaps the case of a String.
*
@ -137,7 +175,7 @@ public final class RenderUtils {
* @return the modified String or null
*/
@SuppressWarnings("PMD.AvoidReassigningLoopVariables")
public static String swapCase(final String src) {
public static String swapCase(String src) {
if (src == null || src.isBlank()) {
return src;
}