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Code

stop annoying fb identify tags in URL

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This commit is contained in:
Anthony Stirling 2023-04-28 23:45:54 +01:00
parent d10f5734fb
commit 0ebec74bed
3 changed files with 56 additions and 1 deletions
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1
src/main/java/stirling/software/SPDF/config/Beans.java
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@ -16,6 +16,7 @@ public class Beans implements WebMvcConfigurer {
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(localeChangeInterceptor());
registry.addInterceptor(new CleanUrlInterceptor());
}
@Bean

44
src/main/java/stirling/software/SPDF/config/CleanUrlInterceptor.java Normal file
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@ -0,0 +1,44 @@
package stirling.software.SPDF.config;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import jakarta.servlet.http.HttpServletResponse;
import jakarta.servlet.http.HttpServletRequest;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class CleanUrlInterceptor implements HandlerInterceptor {
private static final Pattern LANG_PATTERN = Pattern.compile("&?lang=([^&]+)");
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
String queryString = request.getQueryString();
if (queryString != null && !queryString.isEmpty()) {
String requestURI = request.getRequestURI();
// Keep the lang parameter if it exists
Matcher langMatcher = LANG_PATTERN.matcher(queryString);
String langQueryString = langMatcher.find() ? "lang=" + langMatcher.group(1) : "";
// Check if there are any other query parameters besides the lang parameter
String remainingQueryString = queryString.replaceAll(LANG_PATTERN.pattern(), "").replaceAll("&+", "&").replaceAll("^&|&$", "");
if (!remainingQueryString.isEmpty()) {
// Redirect to the URL without other query parameters
String redirectUrl = requestURI + (langQueryString.isEmpty() ? "" : "?" + langQueryString);
response.sendRedirect(redirectUrl);
return false;
}
}
return true;
}
@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) {
}
@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {
}
}

12
src/main/java/stirling/software/SPDF/controller/api/MergeController.java
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@ -37,6 +37,8 @@ public class MergeController {
for (PDPage page : pages) {
mergedDoc.addPage(page);
}
}
// Return the merged document
@ -55,8 +57,16 @@ public class MergeController {
PDDocument mergedDoc = mergeDocuments(documents);
// Return the merged PDF as a response
return PdfUtils.pdfDocToWebResponse(mergedDoc, files[0].getOriginalFilename().replaceFirst("[.][^.]+$", "") + "_merged.pdf");
ResponseEntity<byte[]> response = PdfUtils.pdfDocToWebResponse(mergedDoc, files[0].getOriginalFilename().replaceFirst("[.][^.]+$", "") + "_merged.pdf");
for (PDDocument doc : documents) {
// Close the document after processing
doc.close();
}
return response;
}
}