org.openqa.selenium.server.SessionExtensionJsHandler Maven / Gradle / Ivy

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package org.openqa.selenium.server;

import org.openqa.jetty.http.handler.ResourceHandler;
import org.openqa.jetty.util.Resource;

import java.net.MalformedURLException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * We want to take advantage of the handling capabilities of the standard ResourceHandler. This
 * class is a thin wrapper that handles requests for resources based on the per-session extension
 * Javascript.
 */
class SessionExtensionJsHandler extends ResourceHandler {
  public static final Pattern PATH_PATTERN =
      Pattern.compile("user-extensions.js\\[([0-9a-f]{32})\\]$");

  /**
   * Returning null indicates there is no resource to be had.
   */
  @Override
  public Resource getResource(String pathInContext)
      throws MalformedURLException {
    String sessionId = getSessionId(pathInContext);
    if (sessionId != null) {
      String extensionJs = FrameGroupCommandQueueSet
          .getQueueSet(sessionId).getExtensionJs();
      Resource resource = new SessionExtensionJsResource(extensionJs);
      getHttpContext().getResourceMetaData(resource);
      return resource;
    }
    return null;
  }

  private String getSessionId(String pathInContext) {
    Matcher m = PATH_PATTERN.matcher(pathInContext);
    return (m.find() ? m.group(1) : null);
  }
}