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// Package http implements a HTTP client for go-git.
package http
import (
"fmt"
"net/http"
"gopkg.in/src-d/go-git.v4/plumbing"
"gopkg.in/src-d/go-git.v4/plumbing/transport"
)
type client struct {
c *http.Client
}
// DefaultClient is the default HTTP client, which uses `http.DefaultClient`.
var DefaultClient = NewClient(nil)
// NewClient creates a new client with a custom net/http client.
// See `InstallProtocol` to install and override default http client.
// Unless a properly initialized client is given, it will fall back into
// `http.DefaultClient`.
//
// Note that for HTTP client cannot distinguist between private repositories and
// unexistent repositories on GitHub. So it returns `ErrAuthorizationRequired`
// for both.
func NewClient(c *http.Client) transport.Client {
if c == nil {
return &client{http.DefaultClient}
}
return &client{
c: c,
}
}
func (c *client) NewFetchPackSession(ep transport.Endpoint) (
transport.FetchPackSession, error) {
return newFetchPackSession(c.c, ep), nil
}
func (c *client) NewSendPackSession(ep transport.Endpoint) (
transport.SendPackSession, error) {
return newSendPackSession(c.c, ep), nil
}
type session struct {
auth AuthMethod
client *http.Client
endpoint transport.Endpoint
}
func (s *session) SetAuth(auth transport.AuthMethod) error {
a, ok := auth.(AuthMethod)
if !ok {
return transport.ErrInvalidAuthMethod
}
s.auth = a
return nil
}
func (*session) Close() error {
return nil
}
func (s *session) applyAuthToRequest(req *http.Request) {
if s.auth == nil {
return
}
s.auth.setAuth(req)
}
// AuthMethod is concrete implementation of common.AuthMethod for HTTP services
type AuthMethod interface {
transport.AuthMethod
setAuth(r *http.Request)
}
func basicAuthFromEndpoint(ep transport.Endpoint) *BasicAuth {
info := ep.User
if info == nil {
return nil
}
p, ok := info.Password()
if !ok {
return nil
}
u := info.Username()
return NewBasicAuth(u, p)
}
// BasicAuth represent a HTTP basic auth
type BasicAuth struct {
username, password string
}
// NewBasicAuth returns a basicAuth base on the given user and password
func NewBasicAuth(username, password string) *BasicAuth {
return &BasicAuth{username, password}
}
func (a *BasicAuth) setAuth(r *http.Request) {
if a == nil {
return
}
r.SetBasicAuth(a.username, a.password)
}
// Name is name of the auth
func (a *BasicAuth) Name() string {
return "http-basic-auth"
}
func (a *BasicAuth) String() string {
masked := "*******"
if a.password == "" {
masked = "<empty>"
}
return fmt.Sprintf("%s - %s:%s", a.Name(), a.username, masked)
}
// Err is a dedicated error to return errors based on status code
type Err struct {
Response *http.Response
}
// NewErr returns a new Err based on a http response
func NewErr(r *http.Response) error {
if r.StatusCode >= http.StatusOK && r.StatusCode < http.StatusMultipleChoices {
return nil
}
switch r.StatusCode {
case http.StatusUnauthorized:
return transport.ErrAuthorizationRequired
case http.StatusNotFound:
return transport.ErrRepositoryNotFound
}
return plumbing.NewUnexpectedError(&Err{r})
}
// StatusCode returns the status code of the response
func (e *Err) StatusCode() int {
return e.Response.StatusCode
}
func (e *Err) Error() string {
return fmt.Sprintf("unexpected requesting %q status code: %d",
e.Response.Request.URL, e.Response.StatusCode,
)
}
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