vendor/github.com/hashicorp/go-getter/netrc.go

   1 package getter
   2
   3 import (
   4         "fmt"
   5         "net/url"
   6         "os"
   7         "runtime"
   8
   9         "github.com/bgentry/go-netrc/netrc"
  10         "github.com/mitchellh/go-homedir"
  11 )
  12
  13 // addAuthFromNetrc adds auth information to the URL from the user's
  14 // netrc file if it can be found. This will only add the auth info
  15 // if the URL doesn't already have auth info specified and the
  16 // the username is blank.
  17 func addAuthFromNetrc(u *url.URL) error {
  18         // If the URL already has auth information, do nothing
  19         if u.User != nil && u.User.Username() != "" {
  20                 return nil
  21         }
  22
  23         // Get the netrc file path
  24         path := os.Getenv("NETRC")
  25         if path == "" {
  26                 filename := ".netrc"
  27                 if runtime.GOOS == "windows" {
  28                         filename = "_netrc"
  29                 }
  30
  31                 var err error
  32                 path, err = homedir.Expand("~/" + filename)
  33                 if err != nil {
  34                         return err
  35                 }
  36         }
  37
  38         // If the file is not a file, then do nothing
  39         if fi, err := os.Stat(path); err != nil {
  40                 // File doesn't exist, do nothing
  41                 if os.IsNotExist(err) {
  42                         return nil
  43                 }
  44
  45                 // Some other error!
  46                 return err
  47         } else if fi.IsDir() {
  48                 // File is directory, ignore
  49                 return nil
  50         }
  51
  52         // Load up the netrc file
  53         net, err := netrc.ParseFile(path)
  54         if err != nil {
  55                 return fmt.Errorf("Error parsing netrc file at %q: %s", path, err)
  56         }
  57
  58         machine := net.FindMachine(u.Host)
  59         if machine == nil {
  60                 // Machine not found, no problem
  61                 return nil
  62         }
  63
  64         // Set the user info
  65         u.User = url.UserPassword(machine.Login, machine.Password)
  66         return nil
  67 }