--- /dev/null
+/*
+ * Copyright © 2018 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+
+package altosmap;
+
+import java.net.*;
+import java.io.*;
+import java.util.*;
+import java.text.*;
+
+import org.altusmetrum.altoslib_13.*;
+
+public class AltosMap {
+
+ public final static int port = 16717;
+
+ public final static String protocol_version = "1.0.0";
+
+ String query_string;
+ String remote_addr;
+
+ public String reason_string(int code) {
+ switch (code) {
+ case 200:
+ return "OK";
+ case 400:
+ return "Bad Request";
+ case 403:
+ return "Forbidden";
+ case 404:
+ return "Not Found";
+ case 408:
+ return "Request Timeout";
+ default:
+ return "Failure";
+ }
+ }
+
+ public void write_status(int status) {
+ System.out.printf("Status: %d %s\n", status, reason_string(status));
+ }
+
+ public void write_type(String type) {
+ System.out.printf("Content-Type: %s\n", type);
+ }
+
+ public void fail(int status, String reason) {
+ write_status(status);
+ write_type("text/html");
+ System.out.printf("\n");
+ System.out.printf("<html>\n");
+ System.out.printf("<head><title>Map Fetch Failure</title></head>\n");
+ System.out.printf("<body>%s</body>\n", reason);
+ System.out.printf("</html>\n");
+ System.exit(1);
+ }
+
+ public void process() {
+ query_string = System.getenv("QUERY_STRING");
+
+ if (query_string == null)
+ fail(400, "Missing query string");
+
+ remote_addr = System.getenv("REMOTE_ADDR");
+
+ if (remote_addr == null)
+ fail(400, "Missing remote address");
+
+ String[] queries = query_string.split("&");
+
+ double lon = AltosLib.MISSING;
+ double lat = AltosLib.MISSING;
+ int zoom = AltosLib.MISSING;
+ String version = null;
+
+ try {
+ for (String query : queries) {
+ String[] q = query.split("=");
+ if (q.length >= 2) {
+ String name = q[0];
+ String value = q[1];
+ if (name.equals("lon"))
+ lon = AltosParse.parse_double_net(value);
+ else if (name.equals("lat"))
+ lat = AltosParse.parse_double_net(value);
+ else if (name.equals("zoom"))
+ zoom = AltosParse.parse_int(value);
+ else if (name.equals("version"))
+ version = value;
+ else
+ fail(400, String.format("Extra query param \"%s\"", query));
+ }
+ }
+ } catch (ParseException pe) {
+ fail(400, String.format("Invalid query: %s", pe.toString()));
+ }
+
+ if (version != null) {
+ System.out.printf("Content-Type: text/plain\n");
+ System.out.printf("\n");
+ System.out.printf("%s\n", protocol_version);
+ } else {
+ if (lon == AltosLib.MISSING)
+ fail(400, "Missing longitude");
+ if (lat == AltosLib.MISSING)
+ fail(400, "Missing latitude");
+ if (zoom == AltosLib.MISSING)
+ fail(400, "Missing zoom");
+
+ try {
+ Socket socket = null;
+ int tries = 0;
+
+ while (tries < 10 && socket == null) {
+ try {
+ socket = new Socket(InetAddress.getLoopbackAddress(), port);
+ } catch (IOException ie) {
+ Thread.sleep(100);
+ tries++;
+ }
+ }
+
+ AltosJson request = new AltosJson();
+
+ request.put("lat", lat);
+ request.put("lon", lon);
+ request.put("zoom", zoom);
+ request.put("remote_addr", remote_addr);
+
+ Writer writer = new PrintWriter(socket.getOutputStream());
+ request.write(writer);
+ writer.flush();
+
+ AltosJson reply = AltosJson.fromInputStream(socket.getInputStream());
+
+ int status = reply.get_int("status", 400);
+
+ if (status != 200)
+ fail(status, "Bad cache status");
+
+ String filename = reply.get_string("filename", null);
+ try {
+ File file = new File(filename);
+ long length = file.length();
+ FileInputStream in = new FileInputStream(file);
+ String content_type = reply.get_string("content_type", null);
+ System.out.printf("Content-Type: %s\n", content_type);
+ System.out.printf("Content-Length: %d\n", file.length());
+ System.out.printf("\n");
+ byte[] buf = new byte[4096];
+ int bytes_read;
+ while ((bytes_read = in.read(buf)) > 0)
+ System.out.write(buf);
+ } catch (IOException ie) {
+ fail(404, String.format("IO Exception: %s", ie.toString()));
+ }
+ } catch (Exception e) {
+ fail(404, String.format("Exception %s", e.toString()));
+ }
+ }
+ }
+
+ public AltosMap() {
+ }
+
+ public static void main(final String[] args) {
+
+ new AltosMap().process();
+
+ }
+}
projects / fw / altos / blobdiff