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server.go
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server.go
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package main
import (
"fmt"
"github.com/gorilla/handlers"
"github.com/julienschmidt/httprouter"
"gopkg.in/urfave/cli.v1"
"io/ioutil"
"net/http"
"os"
)
func ServerCommand() cli.Command {
return cli.Command{
Name: "server",
Usage: "run web app",
Description: "Use enviroment variable PORT to set which port to listen to.",
ArgsUsage: "",
Action: ServerAction,
Flags: []cli.Flag{},
}
}
func ServerAction(c *cli.Context) {
router := httprouter.New()
router.POST("/convert", func(w http.ResponseWriter, r *http.Request, _ httprouter.Params) {
file, _, err := r.FormFile("messages")
defer file.Close()
WebCheck(w, err)
b, err := ioutil.ReadAll(file)
WebCheck(w, err)
fbData := FromHTML(string(b))
w.Header().Set("Content-type", "application/json")
w.Write([]byte(ToJSON(fbData, false)))
})
router.ServeFiles("/*filepath", http.Dir("public"))
addr := GetAddr()
fmt.Println("Listening on http://localhost" + addr)
check(http.ListenAndServe(addr, handlers.CompressHandler(router)))
}
func GetAddr() string {
if port := os.Getenv("PORT"); len(port) > 0 {
return ":" + port
} else {
return ":3000"
}
}
func WebCheck(w http.ResponseWriter, e error) {
if e != nil {
fmt.Fprintf(w, "%v", e)
panic(e)
}
}