forked from 42wim/plugctl
/
helpers.go
140 lines (125 loc) · 2.77 KB
/
helpers.go
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package main
import (
"bufio"
"compress/gzip"
"encoding/csv"
"fmt"
"io/ioutil"
"log"
"net"
"net/http"
"os"
"regexp"
"strings"
"time"
"gopkg.in/gcfg.v1"
)
func checkErr(err error) {
if err != nil {
log.Fatalln("Error:", err)
}
}
func sendln(conn net.Conn, s string, wait byte) string {
_, err := fmt.Fprintf(conn, s+"\n")
checkErr(err)
time.Sleep(time.Millisecond * 50)
status, err := bufio.NewReader(conn).ReadString(wait)
checkErr(err)
return status
}
func parseTextArea(body string) string {
body = strings.Replace(body, "\n", "||", -1)
re := regexp.MustCompile("1\">(.*)</textarea>")
result := re.FindStringSubmatch(body)
return result[1]
}
func parseResult(p *plug) string {
resp, err := http.Get("http://" + p.credentials + "@" + p.device + plugReadResult)
if err != nil {
log.Fatal("connection failed!")
}
body, _ := ioutil.ReadAll(resp.Body)
textarea := parseTextArea(string(body))
return textarea
}
func printResultSuccess(result string) {
if strings.Contains(result, "success") {
fmt.Println("succesful")
} else {
fmt.Println("failed")
}
}
func readcsv(csvfile string) []byte {
var err error
f, err := os.Open(csvfile)
if err != nil {
if os.IsNotExist(err) {
// fmt.Println("file does not exist")
} else {
fmt.Println("error", err)
}
return []byte("")
}
defer f.Close()
if strings.Contains(csvfile, ".gz") {
f, err := gzip.NewReader(f)
if err != nil {
fmt.Println(err)
}
defer f.Close()
}
contents, err := ioutil.ReadAll(f)
if err != nil {
fmt.Println("error", err)
return []byte("")
}
return contents
}
func readconfig(cfgfile string) config {
var cfg config
content, err := ioutil.ReadFile(cfgfile)
if err != nil {
log.Fatal(err)
}
err = gcfg.ReadStringInto(&cfg, string(content))
if err != nil {
log.Fatal("Failed to parse "+cfgfile+":", err)
}
return cfg
}
// webhandlers
func webHistoryHandler(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, webHistory)
}
func webStreamHandler(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, webStream)
}
func webQuitHandler(diskwriter *csv.Writer, gzipwriter *gzip.Writer, csvfile *os.File) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "flushing to disk and shutting down")
diskwriter.Flush()
if gzipwriter != nil {
gzipwriter.Flush()
gzipwriter.Close()
}
csvfile.Close()
os.Exit(0)
}
}
func webReadCsvHandler(p *plug) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
backup := p.buffer
for {
output, err := backup.ReadString('\n')
if err != nil {
break
}
fmt.Fprintf(w, string(output))
}
}
}
func webReadJsonHandler(p *plug) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, string(p.latestEntry))
}
}