-/*
- * 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