mtsatellite/cmd/mtwebmapper/main.go

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// Copyright 2014, 2015 by Sascha L. Teichmann
// Use of this source code is governed by the MIT license
// that can be found in the LICENSE file.
package main
import (
"flag"
"fmt"
"log"
"net"
"net/http"
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"bitbucket.org/s_l_teichmann/mtsatellite/common"
"github.com/gorilla/mux"
)
func main() {
var (
cfg config
cfgFile string
version bool
)
flag.StringVar(&cfgFile, "config", "", "configuration file")
flag.BoolVar(&version, "version", false, "Print version and exit.")
cfg.bindFlags()
flag.Parse()
if version {
common.PrintVersionAndExit()
}
if cfgFile != "" {
if err := cfg.load(cfgFile); err != nil {
log.Fatalf("error: %v\n", err)
}
}
bg := common.ParseColorDefault(cfg.BGColor, common.BackgroundColor)
router := mux.NewRouter()
subBaseLine := newSubBaseLine(cfg.MapDir, bg)
router.Path("/map/{z:[0-9]+}/{x:[0-9]+}/{y:[0-9]+}.png").Handler(subBaseLine)
var btu baseTilesUpdates
var wsf *websocketForwarder
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if cfg.Websockets {
wsf = newWebsocketForwarder()
go wsf.run()
router.Path("/ws").Methods("GET").Handler(wsf)
btu = wsf
}
if cfg.PlayersFIFO != "" {
plys := newPlayers(cfg.PlayersFIFO, wsf)
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wsf.setInit(plys.initConnection)
go plys.run()
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router.Path("/players").Methods("GET").Handler(plys)
}
if cfg.RedisHost != "" {
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var colors *common.Colors
var err error
if colors, err = common.ParseColors(cfg.ColorsFile); err != nil {
log.Fatalf("ERROR: problem loading colors: %s", err)
}
colors.TransparentDim = common.Clamp32f(
float32(cfg.TransparentDim/100.0), 0.0, 100.0)
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dbcf, err := common.CreateDBClientFactory(cfg.RedisHost, cfg.RedisPort)
if err != nil {
log.Fatalf("error: %v\n", err)
}
defer dbcf.Close()
var allowedUpdateIps []net.IP
if allowedUpdateIps, err = ipsFromHosts(cfg.UpdateHosts); err != nil {
log.Fatalf("ERROR: name resolving problem: %s", err)
}
tu := newTileUpdater(
cfg.MapDir,
dbcf,
allowedUpdateIps,
colors, bg,
cfg.YMin, cfg.YMax,
cfg.Transparent,
cfg.Workers,
btu)
go tu.doUpdates()
if pgHost, ok := common.IsPostgreSQL(cfg.RedisHost); btu != nil && ok {
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go tu.listen(pgHost, cfg.ChangeDuration.Duration)
} else {
router.Path("/update").Methods("POST").Handler(tu)
}
}
router.PathPrefix("/").Handler(http.FileServer(http.Dir(cfg.WebDir)))
http.Handle("/", router)
addr := fmt.Sprintf("%s:%d", cfg.WebHost, cfg.WebPort)
if err := http.ListenAndServe(addr, nil); err != nil {
log.Fatalf("Starting server failed: %s\n", err)
}
}