Initial Commit - Copy from Altus Metrum AltOS

map-server/altos-mapd/.gitignore

@@ -0,0 +1,7 @@
+*.stamp
+*.jar
+altos-mapd
+altos-mapd-jdb
+altos-mapd-test
+classes
+Manifest.txt

map-server/altos-mapd/AltosMapd.java

@@ -0,0 +1,235 @@
+/*
+ * 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 altosmapd;
+
+import java.net.*;
+import java.io.*;
+import java.text.*;
+import java.util.*;
+import java.util.concurrent.*;
+
+import org.altusmetrum.altoslib_14.*;
+
+public class AltosMapd implements AltosLaunchSiteListener {
+
+	public static int port = 16717;
+
+	public final static int maptype = AltosMap.maptype_hybrid;
+
+	public final static int px_size = 512;
+
+	public final static int scale = 1;
+
+	public static int max_zoom = 17;
+
+	public static double valid_radius = 17000;	/* 17km */
+
+	public String map_dir = null;
+	public String launch_sites_file = null;
+	public String key_file = null;
+
+	public void usage() {
+		System.out.printf("usage: altos-mapd [--mapdir <map-directory] [--launch-sites <launch-sites-file>]\n" +
+				  "                  [--radius <valid-radius-m> [--port <port>] [--key <key-file>]\n" +
+				  "                  [--max-zoom <max-zoom-level>\n");
+		System.exit(1);
+	}
+
+	private static Semaphore launch_sites_ready;
+
+	private static List<AltosLaunchSite> launch_sites;
+
+	public void notify_launch_sites(List<AltosLaunchSite> sites) {
+		synchronized (launch_sites_ready) {
+			if (sites != null) {
+				launch_sites = sites;
+				launch_sites_ready.release();
+			}
+		}
+	}
+
+	private static boolean west_of(double a, double b) {
+		double	diff = b - a;
+
+		while (diff >= 360.0)
+			diff -= 360.0;
+		while (diff <= -360.0)
+			diff += 360.0;
+
+		return diff >= 0;
+	}
+
+	public static boolean check_lat_lon(double lat, double lon, int zoom) {
+
+		if (zoom > max_zoom)
+			return false;
+
+		AltosMapTransform	transform = new AltosMapTransform(px_size, px_size, zoom, new AltosLatLon(lat, lon));
+
+		AltosLatLon		upper_left = transform.screen_lat_lon(new AltosPointInt(0, 0));
+		AltosLatLon		lower_right = transform.screen_lat_lon(new AltosPointInt(px_size, px_size));
+
+		synchronized (launch_sites_ready) {
+			if (launch_sites == null) {
+				try {
+					launch_sites_ready.acquire();
+				} catch (InterruptedException ie) {
+					return false;
+				}
+			}
+		}
+		if (launch_sites == null) {
+			System.out.printf("No launch site data available, refusing all requests\n");
+			return false;
+		}
+
+		for (AltosLaunchSite site : launch_sites) {
+
+			/* Figure out which point in the tile to
+			 * measure to the site That's one of the edges
+			 * or the site location depend on where the
+			 * site is in relation to the tile
+			 */
+
+			double		check_lon;
+
+			if (west_of(site.longitude, upper_left.lon))
+				check_lon = upper_left.lon;
+			else if (west_of(lower_right.lon, site.longitude))
+				check_lon = lower_right.lon;
+			else
+				check_lon = site.longitude;
+
+			double		check_lat;
+
+			if (site.latitude < lower_right.lat)
+				check_lat = lower_right.lat;
+			else if (upper_left.lat < site.latitude)
+				check_lat = upper_left.lat;
+			else
+				check_lat = site.latitude;
+
+			AltosGreatCircle gc = new AltosGreatCircle(site.latitude, site.longitude,
+								   check_lat, check_lon);
+
+			if (gc.distance <= valid_radius)
+				return true;
+		}
+
+		return false;
+	}
+
+	AltosMapdServer	server;
+
+	public void process(String[] args) {
+
+		AltosPreferences.init(new AltosMapdPreferences());
+
+		int skip = 1;
+		for (int i = 0; i < args.length; i += skip) {
+			skip = 1;
+			if (args[i].equals("--mapdir") && i < args.length-1) {
+				map_dir = args[i+1];
+				skip = 2;
+			} else if (args[i].equals("--launch-sites") && i < args.length-1) {
+				launch_sites_file = args[i+1];
+				skip = 2;
+			} else if (args[i].equals("--radius") && i < args.length-1) {
+				try {
+					valid_radius = AltosParse.parse_double_locale(args[i+1]);
+				} catch (ParseException pe) {
+					usage();
+				}
+				skip = 2;
+			} else if (args[i].equals("--port") && i < args.length-1) {
+				try {
+					port = AltosParse.parse_int(args[i+1]);
+				} catch (ParseException pe) {
+					usage();
+				}
+				skip = 2;
+			} else if (args[i].equals("--key") && i < args.length-1) {
+				key_file = args[i+1];
+				skip = 2;
+			} else if (args[i].equals("--max-zoom") && i < args.length-1) {
+				try {
+					max_zoom = AltosParse.parse_int(args[i+1]);
+				} catch (ParseException pe) {
+					usage();
+				}
+				skip = 2;
+			} else {
+				usage();
+			}
+		}
+
+		if (map_dir == null)
+			usage();
+
+		if (key_file != null) {
+			try {
+				BufferedReader key_reader = new BufferedReader(new FileReader(key_file));
+
+				String line = key_reader.readLine();
+				if (line == null || line.length() != 39) {
+					System.out.printf("%s: invalid contents %d \"%s\"\n",
+							  key_file, line.length(), line);
+					usage();
+				}
+				key_reader.close();
+				AltosMapStore.google_maps_api_key = line;
+			} catch (Exception e) {
+				System.out.printf("%s: %s\n", key_file, e.toString());
+				usage();
+			}
+		}
+
+		AltosPreferences.mapdir = new File(map_dir);
+
+		if (launch_sites_file != null)
+			AltosLaunchSites.launch_sites_url = "file://" + launch_sites_file;
+
+		launch_sites_ready = new Semaphore(0);
+
+		new AltosLaunchSites(this);
+
+		try {
+			server = new AltosMapdServer(port);
+		} catch (IOException ie) {
+			System.out.printf("Cannot bind to port %d: %s\n", port, ie.toString());
+			usage();
+		}
+
+		for (;;) {
+			try {
+				Socket client = server.accept();
+				if (client == null) {
+					System.out.printf("accept failed\n");
+					continue;
+				}
+				new AltosMapdClient(client);
+			} catch (Exception e) {
+				System.out.printf("Exception %s\n", e.toString());
+			}
+		}
+	}
+
+	public void AltosMapd() {
+	}
+
+	public static void main(final String[] args) {
+		new AltosMapd().process(args);
+	}
+}

map-server/altos-mapd/AltosMapdClient.java

@@ -0,0 +1,156 @@
+/*
+ * 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 altosmapd;
+
+import java.net.*;
+import java.util.*;
+import java.util.concurrent.*;
+import java.io.*;
+
+import org.altusmetrum.altoslib_14.*;
+
+public class AltosMapdClient extends Thread implements AltosMapStoreListener {
+	private Socket		socket;
+	private AltosJson	request;
+	private AltosJson	reply;
+
+	private int		http_status;
+
+	private void set_status(int status) {
+		http_status = status;
+		reply.put("status", status);
+	}
+
+	private void set_filename(String filename) {
+		reply.put("filename", filename);
+
+	}
+
+	private void set_content_type(String content_type) {
+		reply.put("content_type", content_type);
+	}
+
+	private String content_type(File file) {
+		String content_type = "application/octet-stream";
+		String basename = file.getName();
+		if (basename.endsWith(".jpg"))
+			content_type = "image/jpeg";
+		if (basename.endsWith(".png"))
+			content_type = "image/png";
+		return content_type;
+	}
+
+	private void set_file(File file) {
+		set_filename(file.getAbsolutePath());
+		set_content_type(content_type(file));
+	}
+
+	private Semaphore store_ready;
+
+	public void notify_store(AltosMapStore map_store, int status) {
+		if (status != AltosMapTile.fetching)
+			store_ready.release();
+	}
+
+	public void run() {
+		reply = new AltosJson();
+		try {
+			request = AltosJson.fromInputStream(socket.getInputStream());
+
+			if (request == null) {
+				set_status(400);
+				System.out.printf("client failed %d\n", http_status);
+			} else {
+
+				double	lat = request.get_double("lat", AltosLib.MISSING);
+				double	lon = request.get_double("lon", AltosLib.MISSING);
+				int	zoom = request.get_int("zoom", AltosLib.MISSING);
+				String	addr = request.get_string("remote_addr", null);
+
+				if (lat == AltosLib.MISSING ||
+				    lon == AltosLib.MISSING ||
+				    zoom == AltosLib.MISSING ||
+				    addr == null)
+				{
+					set_status(400);
+				} else if (!AltosMapd.check_lat_lon(lat, lon, zoom)) {
+					set_status(403);	/* Forbidden */
+				} else {
+
+					store_ready = new Semaphore(0);
+
+					AltosMapStore	map_store = AltosMapStore.get(new AltosLatLon(lat, lon),
+										      zoom,
+										      AltosMapd.maptype,
+										      AltosMapd.px_size,
+										      AltosMapd.scale);
+					int status;
+
+					if (map_store == null) {
+						status = AltosMapTile.failed;
+					} else {
+						map_store.add_listener(this);
+
+						try {
+							store_ready.acquire();
+						} catch (Exception ie) {
+						}
+
+						status = map_store.status();
+					}
+
+					if (status == AltosMapTile.fetched || status == AltosMapTile.loaded) {
+						set_status(200);
+						set_file(map_store.file);
+					} else if (status == AltosMapTile.failed) {
+						set_status(404);
+					} else if (status == AltosMapTile.fetching) {
+						set_status(408);
+					} else if (status == AltosMapTile.bad_request) {
+						set_status(400);
+					} else if (status == AltosMapTile.forbidden) {
+						set_status(403);
+					} else {
+						set_status(400);
+					}
+				}
+				System.out.printf("%s: %.6f %.6f %d status %d\n",
+						  addr, lat, lon, zoom, http_status);
+			}
+		} catch (Exception e) {
+			System.out.printf("client exception %s\n", e.toString());
+			e.printStackTrace(System.out);
+			set_status(400);
+
+		} finally {
+			try {
+				Writer writer = new PrintWriter(socket.getOutputStream());
+				reply.write(writer);
+				writer.write('\n');
+				writer.flush();
+			} catch (IOException ie) {
+			}
+			try {
+				socket.close();
+			} catch (IOException ie) {
+			}
+		}
+	}
+
+	public AltosMapdClient(Socket socket) {
+		this.socket = socket;
+		start();
+	}
+}

map-server/altos-mapd/AltosMapdPreferences.java

@@ -0,0 +1,85 @@
+/*
+ * 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 altosmapd;
+
+import java.io.*;
+
+import org.altusmetrum.altoslib_14.*;
+
+public class AltosMapdPreferences extends AltosPreferencesBackend {
+
+	public String  getString(String key, String def) {
+		return def;
+	}
+	public void    putString(String key, String value) {
+	}
+
+	public int     getInt(String key, int def) {
+		return def;
+	}
+
+	public void    putInt(String key, int value) {
+	}
+
+	public double  getDouble(String key, double def) {
+		return def;
+	}
+
+	public void    putDouble(String key, double value) {
+	}
+
+	public boolean getBoolean(String key, boolean def) {
+		return def;
+	}
+
+	public void    putBoolean(String key, boolean value) {
+	}
+
+	public byte[]  getBytes(String key, byte[] def) {
+		return def;
+	}
+
+	public void    putBytes(String key, byte[] value) {
+	}
+
+	public boolean nodeExists(String key) {
+		return false;
+	}
+
+	public AltosPreferencesBackend node(String key) {
+		return this;
+	}
+
+	public String[] keys() {
+		return null;
+	}
+
+	public void    remove(String key) {
+	}
+
+	public void    flush() {
+	}
+
+	public File homeDirectory() {
+		return new File (".");
+	}
+
+	public void debug(String format, Object ... arguments) {
+		System.out.printf(format, arguments);
+	}
+
+	public AltosMapdPreferences() {
+	}
+}

map-server/altos-mapd/AltosMapdServer.java

@@ -0,0 +1,24 @@
+/*
+ * 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 altosmapd;
+
+import java.net.*;
+import java.io.*;
+
+public class AltosMapdServer extends ServerSocket {
+	public AltosMapdServer(int port) throws IOException {
+		super(port, 256, InetAddress.getLoopbackAddress());
+	}
+}

map-server/altos-mapd/Makefile.am

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+JAVAROOT=classes
+AM_JAVACFLAGS=$(JAVAC_VERSION_FLAGS) -encoding UTF-8 -Xlint:deprecation -Xlint:unchecked
+
+altoslibdir=$(libdir)/altos
+
+CLASSPATH_ENV=mkdir -p $(JAVAROOT); CLASSPATH="$(JAVAROOT):../../altoslib/*"
+
+bin_SCRIPTS=altos-mapd
+
+altosmapd_JAVA = \
+	AltosMapd.java \
+	AltosMapdServer.java \
+	AltosMapdClient.java \
+	AltosMapdPreferences.java
+
+ALTOSLIB_CLASS=\
+	altoslib_$(ALTOSLIB_VERSION).jar
+
+JAR=altosmapd.jar
+
+FATJAR=altosmapd-fat.jar
+
+all-local: classes/altosmapd $(JAR) altos-mapd altos-mapd-test altos-mapd-jdb
+
+defaultsdir=$(sysconfdir)/default
+
+defaults_DATA=altos-mapd-default
+
+systemddir=$(bindir)/../lib/systemd/system
+
+systemd_DATA=altos-mapd.service
+
+install-altosmapdJAVA: altosmapd.jar
+	@$(NORMAL_INSTALL)
+	test -z "$(altosmapddir)" || $(MKDIR_P) "$(DESTDIR)$(altosmapddir)"
+	echo " $(INSTALL_DATA)" "$<" "'$(DESTDIR)$(altosmapddir)/altosdmap.jar'"; \
+	$(INSTALL_DATA) "$<" "$(DESTDIR)$(altosmapddir)"
+
+classes/altosmapd:
+	mkdir -p classes/altosmapd
+
+$(JAR): classaltosmapd.stamp Manifest.txt $(ALTOSLIB_CLASS)
+	jar cfm $@ Manifest.txt \
+		-C classes altosmapd
+if STRIP_NONDETERMINISM
+	$(STRIP_NONDETERMINISM) $@
+endif
+
+altosmapddir=$(datadir)/java
+
+$(FATJAR): classaltosmapd.stamp Manifest-fat.txt $(ALTOSLIB_CLASS)
+	jar cfm $@ Manifest-fat.txt \
+		-C classes altosmapd
+if STRIP_NONDETERMINISM
+	$(STRIP_NONDETERMINISM) $@
+endif
+
+altos-mapd: Makefile
+	echo "#!/bin/sh" > $@
+	echo 'exec java -Djava.library.path="$(altoslibdir)" -jar "$(altosmapddir)/altosmapd.jar" "$$@"' >> $@
+	chmod +x $@
+
+Manifest.txt: Makefile
+	echo 'Main-Class: altosmapd.AltosMapd' > $@
+	echo "Class-Path: $(ALTOSLIB_CLASS) $(ALTOSUILIB_CLASS)" >> $@
+
+altos-mapd-test: Makefile
+	echo '#!/bin/sh' > $@
+	echo 'dir="$$(dirname $$0)"' >> $@
+	echo 'cd "$$dir"' >> $@
+	echo 'altosmapd="$$(pwd -P)"' >> $@
+	echo 'exec java -jar "$$altosmapd/altosmapd.jar" "$$@"' >> $@
+	chmod +x $@
+
+altos-mapd-jdb: Makefile
+	echo "#!/bin/sh" > $@
+	echo 'exec jdb altosmapd/AltosMapd "$$@"' >> $@
+	chmod +x $@
+
+$(ALTOSLIB_CLASS):
+	-rm -f "$@"
+	$(LN_S) ../../altoslib/"$@" .
+
+
+clean::
+	rm -f Manifest.txt

map-server/altos-mapd/altos-mapd-default

@@ -0,0 +1,4 @@
+MAPKEY=/home/altos-mapd/google-maps-api-key
+MAPDIR=/home/altos-mapd/maps
+LAUNCHSITES=/var/www/html/launch-sites.txt
+MAXZOOM=17

map-server/altos-mapd/altos-mapd.service

@@ -0,0 +1,14 @@
+[Unit]
+Description=AltOS Map Cache
+Requires=network-online.target
+After=network-online.target
+
+[Service]
+Type=simple
+User=altos-mapd
+Restart=always
+EnvironmentFile=/etc/default/altos-mapd-default
+ExecStart=/usr/bin/altos-mapd --key $MAPKEY --mapdir $MAPDIR --launch-sites $LAUNCHSITES --max-zoom $MAXZOOM
+
+[Install]
+WantedBy=multi-user.target