X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;ds=sidebyside;f=org.argeo.cms%2Fsrc%2Forg%2Fargeo%2Fcms%2Fhttp%2FHttpServerUtils.java;fp=org.argeo.cms%2Fsrc%2Forg%2Fargeo%2Fcms%2Fhttp%2FHttpServerUtils.java;h=fc04fbfaa7cff5e01d835b20507a08e8b53678a0;hb=54df376a9c2dd458a82eaa09bfbb718fe699dd0d;hp=0000000000000000000000000000000000000000;hpb=3c1cdc594d954520b14646102b366290bdad58c7;p=lgpl%2Fargeo-commons.git

diff --git a/org.argeo.cms/src/org/argeo/cms/http/HttpServerUtils.java b/org.argeo.cms/src/org/argeo/cms/http/HttpServerUtils.java
new file mode 100644
index 000000000..fc04fbfaa
--- /dev/null
+++ b/org.argeo.cms/src/org/argeo/cms/http/HttpServerUtils.java
@@ -0,0 +1,45 @@
+package org.argeo.cms.http;
+
+import java.net.URI;
+import java.util.Objects;
+
+import com.sun.net.httpserver.HttpContext;
+import com.sun.net.httpserver.HttpExchange;
+
+public class HttpServerUtils {
+	private final static String SLASH = "/";
+
+	private static String extractPathWithingContext(HttpContext httpContext, String fullPath, boolean startWithSlash) {
+		Objects.requireNonNull(fullPath);
+		String contextPath = httpContext.getPath();
+		if (!fullPath.startsWith(contextPath))
+			throw new IllegalArgumentException(fullPath + " does not belong to context" + contextPath);
+		String path = fullPath.substring(contextPath.length());
+		// TODO optimise?
+		if (!startWithSlash && path.startsWith(SLASH)) {
+			path = path.substring(1);
+		} else if (startWithSlash && !path.startsWith(SLASH)) {
+			path = SLASH + path;
+		}
+		return path;
+	}
+
+	/** Path within the context, NOT starting with a slash. */
+	public static String relativize(HttpExchange exchange) {
+		URI uri = exchange.getRequestURI();
+		HttpContext httpContext = exchange.getHttpContext();
+		return extractPathWithingContext(httpContext, uri.getPath(), false);
+	}
+
+	/** Path within the context, starting with a slash. */
+	public static String subPath(HttpExchange exchange) {
+		URI uri = exchange.getRequestURI();
+		HttpContext httpContext = exchange.getHttpContext();
+		return extractPathWithingContext(httpContext, uri.getPath(), true);
+	}
+
+	/** singleton */
+	private HttpServerUtils() {
+
+	}
+}