configui/util.go

130 lines
2.3 KiB
Go

package configui
import (
"archive/tar"
"compress/gzip"
"io"
"net"
"net/http"
"os"
"strings"
)
func matchIPGlob(ip, pattern string) bool {
parts := strings.Split(pattern, ".")
seg := strings.Split(ip, ".")
for i, part := range parts {
// normalize pattern to 3 digits
switch len(part) {
case 1:
if part == "*" {
part = "***"
} else {
part = "00" + part
}
case 2:
if strings.HasPrefix(part, "*") {
part = "*" + part
} else if strings.HasSuffix(part, "*") {
part = part + "*"
} else {
part = "0" + part
}
}
// normalize ip to 3 digits
switch len(seg[i]) {
case 1:
seg[i] = "00" + seg[i]
case 2:
seg[i] = "0" + seg[i]
}
for j := range part {
if string(part[j]) == "*" {
continue
}
if part[j] != seg[i][j] {
return false
}
}
}
return true
}
func bundle(buf io.Writer, paths []string, rootDir string, flat bool) error {
gw := gzip.NewWriter(buf)
defer gw.Close()
tw := tar.NewWriter(gw)
defer tw.Close()
for _, file := range paths {
if err := func(file string) error {
f, err := os.Open(file)
if err != nil {
return err
}
defer f.Close()
info, err := f.Stat()
if err != nil {
return err
}
header, err := tar.FileInfoHeader(info, info.Name())
if err != nil {
return err
}
// Use full path as name (FileInfoHeader only takes the basename)
// If we don't do this the directory strucuture would
// not be preserved
// https://golang.org/src/archive/tar/common.go?#L626
if !flat {
if !strings.HasPrefix(file, "/") {
file = rootDir + "/" + file
} else {
file = rootDir + file
}
header.Name = file
}
// Write file header to the tar archive
err = tw.WriteHeader(header)
if err != nil {
return err
}
// Copy file content to tar archive
_, err = io.Copy(tw, f)
if err != nil {
return err
}
return nil
}(file); err != nil {
return err
}
}
return nil
}
func GetIP(r *http.Request) string {
ip := r.Header.Get("X-Real-Ip")
if ip == "" {
ips := r.Header.Get("X-Forwarded-For")
ipArr := strings.Split(ips, ",")
ip = strings.Trim(ipArr[len(ipArr)-1], " ")
}
if ip == "" {
var err error
ip, _, err = net.SplitHostPort(r.RemoteAddr)
if err != nil {
ip = r.RemoteAddr
}
}
return ip
}