mirror of
https://github.com/jesseduffield/lazygit.git
synced 2025-06-25 00:46:54 +02:00
bump dependencies
This commit is contained in:
Jesse Duffield
250
vendor/github.com/jesseduffield/go-getter/get_http.go
generated
vendored
Normal file
250
vendor/github.com/jesseduffield/go-getter/get_http.go
generated
vendored
Normal file
@ -0,0 +1,250 @@
|
||||
package getter
|
||||
|
||||
import (
|
||||
"encoding/xml"
|
||||
"fmt"
|
||||
"io"
|
||||
"net/http"
|
||||
"net/url"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"strings"
|
||||
|
||||
"github.com/hashicorp/go-safetemp"
|
||||
)
|
||||
|
||||
// HttpGetter is a Getter implementation that will download from an HTTP
|
||||
// endpoint.
|
||||
//
|
||||
// For file downloads, HTTP is used directly.
|
||||
//
|
||||
// The protocol for downloading a directory from an HTTP endpoing is as follows:
|
||||
//
|
||||
// An HTTP GET request is made to the URL with the additional GET parameter
|
||||
// "terraform-get=1". This lets you handle that scenario specially if you
|
||||
// wish. The response must be a 2xx.
|
||||
//
|
||||
// First, a header is looked for "X-Terraform-Get" which should contain
|
||||
// a source URL to download.
|
||||
//
|
||||
// If the header is not present, then a meta tag is searched for named
|
||||
// "terraform-get" and the content should be a source URL.
|
||||
//
|
||||
// The source URL, whether from the header or meta tag, must be a fully
|
||||
// formed URL. The shorthand syntax of "github.com/foo/bar" or relative
|
||||
// paths are not allowed.
|
||||
type HttpGetter struct {
|
||||
// Netrc, if true, will lookup and use auth information found
|
||||
// in the user's netrc file if available.
|
||||
Netrc bool
|
||||
|
||||
// Client is the http.Client to use for Get requests.
|
||||
// This defaults to a cleanhttp.DefaultClient if left unset.
|
||||
Client *http.Client
|
||||
}
|
||||
|
||||
func (g *HttpGetter) ClientMode(u *url.URL) (ClientMode, error) {
|
||||
if strings.HasSuffix(u.Path, "/") {
|
||||
return ClientModeDir, nil
|
||||
}
|
||||
return ClientModeFile, nil
|
||||
}
|
||||
|
||||
func (g *HttpGetter) Get(dst string, u *url.URL) error {
|
||||
// Copy the URL so we can modify it
|
||||
var newU url.URL = *u
|
||||
u = &newU
|
||||
|
||||
if g.Netrc {
|
||||
// Add auth from netrc if we can
|
||||
if err := addAuthFromNetrc(u); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
if g.Client == nil {
|
||||
g.Client = httpClient
|
||||
}
|
||||
|
||||
// Add terraform-get to the parameter.
|
||||
q := u.Query()
|
||||
q.Add("terraform-get", "1")
|
||||
u.RawQuery = q.Encode()
|
||||
|
||||
// Get the URL
|
||||
resp, err := g.Client.Get(u.String())
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
if resp.StatusCode < 200 || resp.StatusCode >= 300 {
|
||||
return fmt.Errorf("bad response code: %d", resp.StatusCode)
|
||||
}
|
||||
|
||||
// Extract the source URL
|
||||
var source string
|
||||
if v := resp.Header.Get("X-Terraform-Get"); v != "" {
|
||||
source = v
|
||||
} else {
|
||||
source, err = g.parseMeta(resp.Body)
|
||||
if err != nil {
|
||||
source = u.String() // xml parse errors are getting in the way of our downloads
|
||||
}
|
||||
}
|
||||
if source == "" {
|
||||
return fmt.Errorf("no source URL was returned")
|
||||
}
|
||||
|
||||
// If there is a subdir component, then we download the root separately
|
||||
// into a temporary directory, then copy over the proper subdir.
|
||||
source, subDir := SourceDirSubdir(source)
|
||||
if subDir == "" {
|
||||
return Get(dst, source)
|
||||
}
|
||||
|
||||
// We have a subdir, time to jump some hoops
|
||||
return g.getSubdir(dst, source, subDir)
|
||||
}
|
||||
|
||||
func (g *HttpGetter) GetFile(dst string, u *url.URL) error {
|
||||
if g.Netrc {
|
||||
// Add auth from netrc if we can
|
||||
if err := addAuthFromNetrc(u); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
if g.Client == nil {
|
||||
g.Client = httpClient
|
||||
}
|
||||
|
||||
resp, err := g.Client.Get(u.String())
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
if resp.StatusCode != 200 {
|
||||
return fmt.Errorf("bad response code: %d", resp.StatusCode)
|
||||
}
|
||||
|
||||
// Create all the parent directories
|
||||
if err := os.MkdirAll(filepath.Dir(dst), 0755); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
f, err := os.Create(dst)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
n, err := io.Copy(f, resp.Body)
|
||||
if err == nil && n < resp.ContentLength {
|
||||
err = io.ErrShortWrite
|
||||
}
|
||||
if err1 := f.Close(); err == nil {
|
||||
err = err1
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
// getSubdir downloads the source into the destination, but with
|
||||
// the proper subdir.
|
||||
func (g *HttpGetter) getSubdir(dst, source, subDir string) error {
|
||||
// Create a temporary directory to store the full source. This has to be
|
||||
// a non-existent directory.
|
||||
td, tdcloser, err := safetemp.Dir("", "getter")
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer tdcloser.Close()
|
||||
|
||||
// Download that into the given directory
|
||||
if err := Get(td, source); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Process any globbing
|
||||
sourcePath, err := SubdirGlob(td, subDir)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Make sure the subdir path actually exists
|
||||
if _, err := os.Stat(sourcePath); err != nil {
|
||||
return fmt.Errorf(
|
||||
"Error downloading %s: %s", source, err)
|
||||
}
|
||||
|
||||
// Copy the subdirectory into our actual destination.
|
||||
if err := os.RemoveAll(dst); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Make the final destination
|
||||
if err := os.MkdirAll(dst, 0755); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return copyDir(dst, sourcePath, false)
|
||||
}
|
||||
|
||||
// parseMeta looks for the first meta tag in the given reader that
|
||||
// will give us the source URL.
|
||||
func (g *HttpGetter) parseMeta(r io.Reader) (string, error) {
|
||||
d := xml.NewDecoder(r)
|
||||
d.CharsetReader = charsetReader
|
||||
d.Strict = false
|
||||
var err error
|
||||
var t xml.Token
|
||||
for {
|
||||
t, err = d.Token()
|
||||
if err != nil {
|
||||
if err == io.EOF {
|
||||
err = nil
|
||||
}
|
||||
return "", err
|
||||
}
|
||||
if e, ok := t.(xml.StartElement); ok && strings.EqualFold(e.Name.Local, "body") {
|
||||
return "", nil
|
||||
}
|
||||
if e, ok := t.(xml.EndElement); ok && strings.EqualFold(e.Name.Local, "head") {
|
||||
return "", nil
|
||||
}
|
||||
e, ok := t.(xml.StartElement)
|
||||
if !ok || !strings.EqualFold(e.Name.Local, "meta") {
|
||||
continue
|
||||
}
|
||||
if attrValue(e.Attr, "name") != "terraform-get" {
|
||||
continue
|
||||
}
|
||||
if f := attrValue(e.Attr, "content"); f != "" {
|
||||
return f, nil
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// attrValue returns the attribute value for the case-insensitive key
|
||||
// `name', or the empty string if nothing is found.
|
||||
func attrValue(attrs []xml.Attr, name string) string {
|
||||
for _, a := range attrs {
|
||||
if strings.EqualFold(a.Name.Local, name) {
|
||||
return a.Value
|
||||
}
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
// charsetReader returns a reader for the given charset. Currently
|
||||
// it only supports UTF-8 and ASCII. Otherwise, it returns a meaningful
|
||||
// error which is printed by go get, so the user can find why the package
|
||||
// wasn't downloaded if the encoding is not supported. Note that, in
|
||||
// order to reduce potential errors, ASCII is treated as UTF-8 (i.e. characters
|
||||
// greater than 0x7f are not rejected).
|
||||
func charsetReader(charset string, input io.Reader) (io.Reader, error) {
|
||||
switch strings.ToLower(charset) {
|
||||
case "ascii":
|
||||
return input, nil
|
||||
default:
|
||||
return nil, fmt.Errorf("can't decode XML document using charset %q", charset)
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user