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forked from x/icebergs
icebergs/misc/git/server.go
2022-07-01 21:32:23 +08:00

209 lines
7.2 KiB
Go

package git
import (
"compress/flate"
"compress/gzip"
"encoding/base64"
"fmt"
"io"
"net/http"
"path"
"regexp"
"strconv"
"strings"
ice "shylinux.com/x/icebergs"
"shylinux.com/x/icebergs/base/aaa"
"shylinux.com/x/icebergs/base/cli"
"shylinux.com/x/icebergs/base/ctx"
"shylinux.com/x/icebergs/base/mdb"
"shylinux.com/x/icebergs/base/nfs"
"shylinux.com/x/icebergs/base/tcp"
"shylinux.com/x/icebergs/base/web"
kit "shylinux.com/x/toolkits"
)
func requestReader(m *ice.Message) (io.ReadCloser, error) {
switch m.R.Header.Get("content-encoding") {
case "deflate":
return flate.NewReader(m.R.Body), nil
case "gzip":
return gzip.NewReader(m.R.Body)
}
return m.R.Body, nil
}
func packetWrite(m *ice.Message, cmd string, str ...string) {
s := strconv.FormatInt(int64(len(cmd)+4), 16)
if len(s)%4 != 0 {
s = strings.Repeat("0", 4-len(s)%4) + s
}
m.W.Write([]byte(s + cmd + "0000" + strings.Join(str, "")))
}
var basicAuthRegex = regexp.MustCompile("^([^:]*):(.*)$")
func _server_login(m *ice.Message) error {
if m.Conf("web.serve", "meta.localhost") != ice.FALSE {
if tcp.IsLocalHost(m, m.Option(ice.MSG_USERIP)) {
return nil
}
}
parts := strings.SplitN(m.R.Header.Get("Authorization"), ice.SP, 2)
if len(parts) < 2 {
return fmt.Errorf("Invalid authorization header, not enought parts")
}
authType, authData := parts[0], parts[1]
if strings.ToLower(authType) != "basic" {
return fmt.Errorf("Authentication '%s' was not of 'Basic' type", authType)
}
data, err := base64.StdEncoding.DecodeString(authData)
if err != nil {
return err
}
matches := basicAuthRegex.FindStringSubmatch(string(data))
if matches == nil {
return fmt.Errorf("Authorization data '%s' did not match auth regexp", data)
}
username, password := matches[1], matches[2]
if !aaa.UserLogin(m, username, password) {
return fmt.Errorf("username or password error")
}
if aaa.UserRole(m, username) == aaa.VOID {
return fmt.Errorf("userrole has no right")
}
return nil
}
func _server_param(m *ice.Message, arg ...string) (string, string) {
repos, service := path.Join(arg...), kit.Select(arg[len(arg)-1], m.Option("service"))
switch {
case strings.HasSuffix(repos, "info/refs"):
repos = strings.TrimSuffix(repos, "info/refs")
default:
repos = strings.TrimSuffix(repos, service)
}
return kit.Path(m.Config(nfs.PATH), REPOS, strings.TrimSuffix(repos, ".git/")), strings.TrimPrefix(service, "git-")
}
func _server_repos(m *ice.Message, arg ...string) error {
repos, service := _server_param(m, arg...)
if m.Option(cli.CMD_DIR, repos); strings.HasSuffix(path.Join(arg...), "info/refs") {
web.RenderType(m.W, "", kit.Format("application/x-git-%s-advertisement", service))
msg := m.Cmd(cli.SYSTEM, GIT, service, "--stateless-rpc", "--advertise-refs", ice.PT)
packetWrite(m, "# service=git-"+service+ice.NL, msg.Result())
return nil
}
reader, err := requestReader(m)
if err != nil {
return err
}
defer reader.Close()
m.Option(cli.CMD_OUTPUT, m.W)
m.Option(cli.CMD_INPUT, reader)
web.RenderType(m.W, "", kit.Format("application/x-git-%s-result", service))
m.Cmd(cli.SYSTEM, GIT, service, "--stateless-rpc", ice.PT)
return nil
}
const SERVER = "server"
func init() {
Index.Merge(&ice.Context{Commands: map[string]*ice.Command{
web.WEB_LOGIN: {Hand: func(m *ice.Message, arg ...string) {
m.Render(ice.RENDER_VOID)
}},
"/repos/": {Name: "/repos/", Help: "代码库", Action: ice.MergeAction(map[string]*ice.Action{
ice.CTX_INIT: {Hand: func(m *ice.Message, arg ...string) {
web.AddRewrite(func(p string, w http.ResponseWriter, r *http.Request) bool {
if strings.HasPrefix(p, "/chat/pod/") {
if strings.HasPrefix(r.Header.Get("User-Agent"), "git") || strings.HasPrefix(r.Header.Get("User-Agent"), "Go") {
r.URL.Path = strings.Replace(r.URL.Path, "/chat/pod/", "/code/git/repos/", 1)
m.Info("rewrite %v -> %v", p, r.URL.Path)
} else if strings.HasPrefix(r.Header.Get("User-Agent"), "curl") || strings.HasPrefix(r.Header.Get("User-Agent"), "Wget") {
if ls := strings.Split(p, ice.PS); m.Cmd(web.DREAM, ls[3]).Length() > 0 {
r.URL.RawQuery += kit.Select("", "&", len(r.URL.RawQuery) > 1) + "pod=" + ls[3]
}
r.URL.Path = "/publish/ice.bin"
m.Info("rewrite %v -> %v", p, r.URL.Path)
}
} else if strings.HasPrefix(p, "/x/") {
r.URL.Path = strings.Replace(r.URL.Path, "/x/", "/code/git/repos/", 1)
m.Info("rewrite %v -> %v", p, r.URL.Path)
}
return false
})
}},
}, ctx.CmdAction()), Hand: func(m *ice.Message, arg ...string) {
if !m.IsCliUA() {
p := kit.Split(m.MergeURL2("/x/"+path.Join(arg...)), "?")[0]
m.RenderResult("git clone %v", p)
return
}
if m.Option("go-get") == "1" { // 下载地址
p := kit.Split(m.MergeURL2("/x/"+path.Join(arg...)), "?")[0]
m.RenderResult(kit.Format(`<meta name="%s" content="%s">`, "go-import", kit.Format(`%s git %s`, strings.TrimPrefix(p, "https://"), p)))
return
}
switch repos, service := _server_param(m, arg...); service {
case "receive-pack": // 上传代码
if err := _server_login(m); err != nil {
web.RenderHeader(m, "WWW-Authenticate", `Basic realm="git server"`)
web.RenderStatus(m, 401, err.Error())
return // 没有权限
}
if !kit.FileExists(path.Join(repos)) {
m.Cmd(cli.SYSTEM, GIT, INIT, "--bare", repos) // 创建仓库
m.Log_CREATE(REPOS, repos)
}
case "upload-pack": // 下载代码
aaa.UserRoot(m)
if kit.Select("", arg, 1) == "info" && m.Cmd(web.DREAM, arg[0]).Length() > 0 {
m.Cmd(web.SPACE, arg[0], "web.code.git.status", "submit", m.MergeURL2("/x/")+arg[0])
}
if !kit.FileExists(path.Join(repos)) {
web.RenderStatus(m, 404, kit.Format("not found: %s", arg[0]))
return
}
}
if err := _server_repos(m, arg...); err != nil {
web.RenderStatus(m, 500, err.Error())
}
}},
SERVER: {Name: "server path auto create import", Help: "服务器", Action: map[string]*ice.Action{
mdb.CREATE: {Name: "create name", Help: "创建", Hand: func(m *ice.Message, arg ...string) {
m.Option(cli.CMD_DIR, path.Join(ice.USR_LOCAL, REPOS))
m.Cmdy(cli.SYSTEM, GIT, INIT, "--bare", m.Option(mdb.NAME))
}},
mdb.IMPORT: {Name: "import", Help: "导入", Hand: func(m *ice.Message, arg ...string) {
m.Cmdy(REPOS, ice.OptionFields("time,name,path")).Table(func(index int, value map[string]string, head []string) {
remote := strings.Split(m.MergeURL2("/x/"+value[REPOS]), "?")[0]
m.Option(cli.CMD_DIR, value[nfs.PATH])
m.Cmd(cli.SYSTEM, GIT, PUSH, remote, MASTER)
m.Cmd(cli.SYSTEM, GIT, PUSH, "--tags", remote, MASTER)
})
}},
nfs.TRASH: {Name: "trash", Help: "删除", Hand: func(m *ice.Message, arg ...string) {
m.Assert(m.Option(nfs.PATH) != "")
m.Cmd(nfs.TRASH, path.Join(ice.USR_LOCAL_REPOS, m.Option(nfs.PATH)))
}},
}, Hand: func(m *ice.Message, arg ...string) {
if m.Option(nfs.DIR_ROOT, ice.USR_LOCAL_REPOS); len(arg) == 0 {
m.Cmdy(nfs.DIR, nfs.PWD).Table(func(index int, value map[string]string, head []string) {
m.PushScript("git clone " + m.MergeLink("/x/"+strings.TrimSuffix(value[nfs.PATH], ice.PS)))
})
m.Cut("time,path,size,script,action")
m.StatusTimeCount()
return
}
m.Cmdy("_sum", path.Join(m.Option(nfs.DIR_ROOT), arg[0]))
}},
}})
}