From 2445e2ab93f79d90fb01481082cebef63d3e33bf Mon Sep 17 00:00:00 2001
From: Mathieu Baudier <mbaudier@argeo.org>
Date: Wed, 13 Jan 2021 12:36:16 +0100
Subject: [PATCH] Introduce fonts servlet.

---
 publishing/org.argeo.publishing.ui/.project   |  5 ++
 .../OSGI-INF/fontsServlet.xml                 | 10 ++++
 publishing/org.argeo.publishing.ui/bnd.bnd    |  3 ++
 .../publishing/servlet/FontsServlet.java      | 51 +++++++++++++++++++
 4 files changed, 69 insertions(+)
 create mode 100644 publishing/org.argeo.publishing.ui/OSGI-INF/fontsServlet.xml
 create mode 100644 publishing/org.argeo.publishing.ui/src/org/argeo/publishing/servlet/FontsServlet.java

diff --git a/publishing/org.argeo.publishing.ui/.project b/publishing/org.argeo.publishing.ui/.project
index 81f1cc1..5e90066 100644
--- a/publishing/org.argeo.publishing.ui/.project
+++ b/publishing/org.argeo.publishing.ui/.project
@@ -20,6 +20,11 @@
 			<arguments>
 			</arguments>
 		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ds.core.builder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
 	</buildSpec>
 	<natures>
 		<nature>org.eclipse.pde.PluginNature</nature>
diff --git a/publishing/org.argeo.publishing.ui/OSGI-INF/fontsServlet.xml b/publishing/org.argeo.publishing.ui/OSGI-INF/fontsServlet.xml
new file mode 100644
index 0000000..6ca1c41
--- /dev/null
+++ b/publishing/org.argeo.publishing.ui/OSGI-INF/fontsServlet.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<scr:component xmlns:scr="http://www.osgi.org/xmlns/scr/v1.1.0">
+   <implementation class="org.argeo.publishing.servlet.FontsServlet"/>
+   <service>
+      <provide interface="javax.servlet.Servlet"/>
+   </service>
+   <property name="osgi.http.whiteboard.servlet.pattern" type="String" value="/fonts/*"/>
+   <property name="osgi.http.whiteboard.context.select" type="String" value="(osgi.http.whiteboard.context.name=default)"/>
+   <reference bind="addTheme" cardinality="0..n" interface="org.argeo.cms.ui.CmsTheme" name="CmsTheme" policy="dynamic" unbind="removeTheme"/>
+</scr:component>
diff --git a/publishing/org.argeo.publishing.ui/bnd.bnd b/publishing/org.argeo.publishing.ui/bnd.bnd
index a321ccb..8d34250 100644
--- a/publishing/org.argeo.publishing.ui/bnd.bnd
+++ b/publishing/org.argeo.publishing.ui/bnd.bnd
@@ -8,3 +8,6 @@ org.osgi.framework,\
 
 Provide-Capability:\
 cms.datamodel; name=docbook; cnd=/org/argeo/docbook/ui/docbook.cnd; abstract=true
+
+Service-Component:\
+OSGI-INF/fontsServlet.xml
diff --git a/publishing/org.argeo.publishing.ui/src/org/argeo/publishing/servlet/FontsServlet.java b/publishing/org.argeo.publishing.ui/src/org/argeo/publishing/servlet/FontsServlet.java
new file mode 100644
index 0000000..5bc6d0c
--- /dev/null
+++ b/publishing/org.argeo.publishing.ui/src/org/argeo/publishing/servlet/FontsServlet.java
@@ -0,0 +1,51 @@
+package org.argeo.publishing.servlet;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.apache.commons.io.IOUtils;
+import org.argeo.cms.ui.CmsTheme;
+
+/** Serves fonts locally. */
+public class FontsServlet extends HttpServlet {
+	private static final long serialVersionUID = 6009572962850708537L;
+	private Map<String, CmsTheme> themes = Collections.synchronizedMap(new HashMap<>());
+
+	@Override
+	protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+		String font = req.getPathInfo();
+		font = font.substring(1, font.length());
+		for (CmsTheme theme : themes.values()) {
+			for (String fontPath : theme.getFontsPaths()) {
+				if (fontPath.endsWith(font)) {
+					if (font.endsWith(".woff"))
+						resp.setContentType("font/woff");
+					else if (font.endsWith(".woff2"))
+						resp.setContentType("font/woff2");
+					try (InputStream in = theme.loadPath(fontPath)) {
+						IOUtils.copy(in, resp.getOutputStream());
+						return;
+					}
+				}
+			}
+		}
+		resp.setStatus(404);
+	}
+
+	public void addTheme(CmsTheme theme, Map<String, String> properties) {
+		themes.put(theme.getThemeId(), theme);
+	}
+
+	public void removeTheme(CmsTheme theme, Map<String, String> properties) {
+		themes.remove(theme.getThemeId());
+	}
+
+}
-- 
2.30.2