/
endpoint.go
118 lines (99 loc) · 2.94 KB
/
endpoint.go
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package lfshttp
import (
"fmt"
"net/url"
"regexp"
"strings"
"github.com/git-lfs/git-lfs/v3/git"
"github.com/git-lfs/git-lfs/v3/ssh"
)
const UrlUnknown = "<unknown>"
// An Endpoint describes how to access a Git LFS server.
type Endpoint struct {
Url string
SSHMetadata ssh.SSHMetadata
Operation string
OriginalUrl string
}
func endpointOperation(e Endpoint, method string) string {
if len(e.Operation) > 0 {
return e.Operation
}
switch method {
case "GET", "HEAD":
return "download"
default:
return "upload"
}
}
// EndpointFromSshUrl constructs a new endpoint from an ssh:// URL
func EndpointFromSshUrl(u *url.URL) Endpoint {
var endpoint Endpoint
// Pull out port now, we need it separately for SSH
regex := regexp.MustCompile(`^([^\:]+)(?:\:(\d+))?$`)
match := regex.FindStringSubmatch(u.Host)
if match == nil || len(match) < 2 {
endpoint.Url = UrlUnknown
return endpoint
}
endpoint.OriginalUrl = u.String()
host := match[1]
if u.User != nil && u.User.Username() != "" {
endpoint.SSHMetadata.UserAndHost = fmt.Sprintf("%s@%s", u.User.Username(), host)
} else {
endpoint.SSHMetadata.UserAndHost = host
}
if len(match) > 2 {
endpoint.SSHMetadata.Port = match[2]
}
endpoint.SSHMetadata.Path = u.Path
// Fallback URL for using HTTPS while still using SSH for git
// u.Host includes host & port so can't use SSH port
endpoint.Url = fmt.Sprintf("https://%s%s", host, u.Path)
return endpoint
}
// EndpointFromBareSshUrl constructs a new endpoint from a bare SSH URL:
//
// user@host.com:path/to/repo.git or
// [user@host.com:port]:path/to/repo.git
func EndpointFromBareSshUrl(rawurl string) Endpoint {
parts := strings.Split(rawurl, ":")
partsLen := len(parts)
if partsLen < 2 {
return Endpoint{Url: rawurl}
}
// Treat presence of ':' as a bare URL
var newPath string
if len(parts) > 2 { // port included; really should only ever be 3 parts
// Correctly handle [host:port]:path URLs
parts[0] = strings.TrimPrefix(parts[0], "[")
parts[1] = strings.TrimSuffix(parts[1], "]")
newPath = fmt.Sprintf("%v:%v", parts[0], strings.Join(parts[1:], "/"))
} else {
newPath = strings.Join(parts, "/")
}
newrawurl := fmt.Sprintf("ssh://%v", newPath)
newu, err := url.Parse(newrawurl)
if err != nil {
return Endpoint{Url: UrlUnknown}
}
endpoint := EndpointFromSshUrl(newu)
if strings.HasPrefix(endpoint.SSHMetadata.Path, "/") {
endpoint.SSHMetadata.Path = endpoint.SSHMetadata.Path[1:]
}
return endpoint
}
// Construct a new endpoint from a HTTP URL
func EndpointFromHttpUrl(u *url.URL) Endpoint {
// just pass this straight through
return Endpoint{Url: u.String(), OriginalUrl: u.String()}
}
func EndpointFromLocalPath(path string) Endpoint {
url := git.RewriteLocalPathAsURL(path)
return Endpoint{Url: url, OriginalUrl: url}
}
// Construct a new endpoint from a file URL
func EndpointFromFileUrl(u *url.URL) Endpoint {
// just pass this straight through
return Endpoint{Url: u.String(), OriginalUrl: u.String()}
}