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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,127 @@ | ||
| package git | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "os" | ||
| "path/filepath" | ||
| "runtime" | ||
| "strings" | ||
| "sync" | ||
| ) | ||
|
|
||
| type netrcLine struct { | ||
| machine string | ||
| login string | ||
| password string | ||
| } | ||
|
|
||
| type NetrcMachine struct { | ||
| Login string | ||
| Password string | ||
| } | ||
|
|
||
| var ( | ||
| netrcOnce sync.Once | ||
| netrc map[string]NetrcMachine | ||
| netrcErr error | ||
| ) | ||
|
|
||
| func NetrcMachines() map[string]NetrcMachine { | ||
| netrcOnce.Do(readNetrc) | ||
|
|
||
| return netrc | ||
| } | ||
|
|
||
| func NetrcCredentials(machine string) (NetrcMachine, error) { | ||
| if cred, ok := netrc[machine]; ok { | ||
| return cred, nil | ||
| } | ||
|
|
||
| return NetrcMachine{}, fmt.Errorf("No credentials found for %s", machine) | ||
| } | ||
|
|
||
| func parseNetrc(data string) map[string]NetrcMachine { | ||
| // See https://www.gnu.org/software/inetutils/manual/html_node/The-_002enetrc-file.html | ||
| // for documentation on the .netrc format. | ||
| nrc := make(map[string]NetrcMachine) | ||
| var l netrcLine | ||
| inMacro := false | ||
| for _, line := range strings.Split(data, "\n") { | ||
| if inMacro { | ||
| if line == "" { | ||
| inMacro = false | ||
| } | ||
| continue | ||
| } | ||
|
|
||
| f := strings.Fields(line) | ||
| i := 0 | ||
| for ; i < len(f)-1; i += 2 { | ||
| // Reset at each "machine" token. | ||
| // “The auto-login process searches the .netrc file for a machine token | ||
| // that matches […]. Once a match is made, the subsequent .netrc tokens | ||
| // are processed, stopping when the end of file is reached or another | ||
| // machine or a default token is encountered.” | ||
| switch f[i] { | ||
| case "machine": | ||
| l = netrcLine{machine: f[i+1]} | ||
| case "default": | ||
| break | ||
| case "login": | ||
| l.login = f[i+1] | ||
| case "password": | ||
| l.password = f[i+1] | ||
| case "macdef": | ||
| // “A macro is defined with the specified name; its contents begin with | ||
| // the next .netrc line and continue until a null line (consecutive | ||
| // new-line characters) is encountered.” | ||
| inMacro = true | ||
| } | ||
|
|
||
| if l.machine != "" && l.login != "" && l.password != "" { | ||
| nrc[l.machine] = NetrcMachine{l.login, l.password} | ||
| l = netrcLine{} | ||
| } | ||
| } | ||
|
|
||
| if i < len(f) && f[i] == "default" { | ||
| // “There can be only one default token, and it must be after all machine tokens.” | ||
| break | ||
| } | ||
| } | ||
|
|
||
| return nrc | ||
| } | ||
|
|
||
| func netrcPath() (string, error) { | ||
| if env := os.Getenv("NETRC"); env != "" { | ||
| return env, nil | ||
| } | ||
| dir, err := os.UserHomeDir() | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| base := ".netrc" | ||
| if runtime.GOOS == "windows" { | ||
| base = "_netrc" | ||
| } | ||
| return filepath.Join(dir, base), nil | ||
| } | ||
|
|
||
| func readNetrc() { | ||
| path, err := netrcPath() | ||
| if err != nil { | ||
| netrcErr = err | ||
| return | ||
| } | ||
|
|
||
| data, err := os.ReadFile(path) | ||
| if err != nil { | ||
| if !os.IsNotExist(err) { | ||
| netrcErr = err | ||
| } | ||
| return | ||
| } | ||
|
|
||
| netrc = parseNetrc(string(data)) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,54 @@ | ||
| package git | ||
|
|
||
| import ( | ||
| "reflect" | ||
| "testing" | ||
| ) | ||
|
|
||
| var testNetrc = ` | ||
| machine incomplete | ||
| password none | ||
| machine api.github.com | ||
| login user | ||
| password pwd | ||
| machine incomlete.host | ||
| login justlogin | ||
| machine test.host | ||
| login user2 | ||
| password pwd2 | ||
| machine oneline login user3 password pwd3 | ||
| machine ignore.host macdef ignore | ||
| login nobody | ||
| password nothing | ||
| machine hasmacro.too macdef ignore-next-lines login user4 password pwd4 | ||
| login nobody | ||
| password nothing | ||
| default | ||
| login anonymous | ||
| password gopher@golang.org | ||
| machine after.default | ||
| login oops | ||
| password too-late-in-file | ||
| ` | ||
|
|
||
| func TestParseNetrc(t *testing.T) { | ||
| lines := parseNetrc(testNetrc) | ||
| want := map[string]NetrcMachine{ | ||
| "api.github.com": {"user", "pwd"}, | ||
| "test.host": {"user2", "pwd2"}, | ||
| "oneline": {"user3", "pwd3"}, | ||
| "hasmacro.too": {"user4", "pwd4"}, | ||
| } | ||
|
|
||
| if !reflect.DeepEqual(lines, want) { | ||
| t.Errorf("parseNetrc:\nhave %q\nwant %q", lines, want) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| package git | ||
|
|
||
| import ( | ||
| "os" | ||
| "strings" | ||
|
|
||
| "github.com/go-git/go-git/v5/plumbing/transport/ssh" | ||
| "github.com/kevinburke/ssh_config" | ||
| ) | ||
|
|
||
| type SSHMachine struct { | ||
| User string | ||
| Keys *ssh.PublicKeys | ||
| } | ||
|
|
||
| func SSHCredentials(machine string) (SSHMachine, error) { | ||
| pk, err := ssh_config.GetStrict(machine, "IdentityFile") | ||
| if err != nil { | ||
| return SSHMachine{}, err | ||
| } | ||
| if strings.HasPrefix(pk, "~") { | ||
| if hdir, err := os.UserHomeDir(); err == nil { | ||
| pk = strings.Replace(pk, "~", hdir, 1) | ||
| } | ||
| } | ||
| usr := ssh_config.Get(machine, "User") | ||
| if usr == "" { | ||
| usr = "git" | ||
| } | ||
|
|
||
| pks, err := ssh.NewPublicKeysFromFile(usr, pk, "") | ||
| if err != nil { | ||
| return SSHMachine{}, err | ||
| } | ||
|
|
||
| return SSHMachine{usr, pks}, nil | ||
| } |