mirror of https://github.com/go-gitea/gitea
Lunny Xiao
11 years ago
parent
9791e70da6
commit
16b6e5d50b
@ -0,0 +1,55 @@ |
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package repo |
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|
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import ( |
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"fmt" |
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"strings" |
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) |
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const advertise_refs = "--advertise-refs" |
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func command(cmd string, opts ...string) string { |
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return fmt.Sprintf("git %s %s", cmd, strings.Join(opts, " ")) |
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} |
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/*func upload_pack(repository_path string, opts ...string) string { |
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cmd = "upload-pack" |
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opts = append(opts, "--stateless-rpc", repository_path) |
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return command(cmd, opts...) |
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} |
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func receive_pack(repository_path string, opts ...string) string { |
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cmd = "receive-pack" |
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opts = append(opts, "--stateless-rpc", repository_path) |
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return command(cmd, opts...) |
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}*/ |
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|
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/*func update_server_info(repository_path, opts = {}, &block) |
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cmd = "update-server-info" |
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args = [] |
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opts.each {|k,v| args << command_options[k] if command_options.has_key?(k) } |
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opts[:args] = args |
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Dir.chdir(repository_path) do # "git update-server-info" does not take a parameter to specify the repository, so set the working directory to the repository |
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self.command(cmd, opts, &block) |
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end |
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end |
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def get_config_setting(repository_path, key) |
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path = get_config_location(repository_path) |
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raise "Config file could not be found for repository in #{repository_path}." unless path |
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self.command("config", {:args => ["-f #{path}", key]}).chomp |
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end |
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def get_config_location(repository_path) |
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non_bare = File.join(repository_path,'.git') # This is where the config file will be if the repository is non-bare |
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if File.exists?(non_bare) then # The repository is non-bare |
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non_bare_config = File.join(non_bare, 'config') |
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return non_bare_config if File.exists?(non_bare_config) |
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else # We are dealing with a bare repository |
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bare_config = File.join(repository_path, "config") |
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return bare_config if File.exists?(bare_config) |
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end |
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return nil |
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end |
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end |
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*/ |
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@ -0,0 +1,459 @@ |
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package repo |
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import ( |
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"fmt" |
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"io" |
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"io/ioutil" |
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"log" |
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"net/http" |
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"os" |
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"os/exec" |
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"path" |
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"regexp" |
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"strconv" |
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"strings" |
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"time" |
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"github.com/go-martini/martini" |
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"github.com/gogits/gogs/models" |
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"github.com/gogits/gogs/modules/base" |
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"github.com/gogits/gogs/modules/middleware" |
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) |
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func Http(ctx *middleware.Context, params martini.Params) { |
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username := params["username"] |
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reponame := params["reponame"] |
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if strings.HasSuffix(reponame, ".git") { |
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reponame = reponame[:len(reponame)-4] |
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} |
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var isPull bool |
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service := ctx.Query("service") |
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if service == "git-receive-pack" || |
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strings.HasSuffix(ctx.Req.URL.Path, "git-receive-pack") { |
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isPull = false |
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} else if service == "git-upload-pack" || |
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strings.HasSuffix(ctx.Req.URL.Path, "git-upload-pack") { |
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isPull = true |
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} else { |
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isPull = (ctx.Req.Method == "GET") |
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} |
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repoUser, err := models.GetUserByName(username) |
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if err != nil { |
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ctx.Handle(500, "repo.GetUserByName", nil) |
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return |
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} |
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repo, err := models.GetRepositoryByName(repoUser.Id, reponame) |
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if err != nil { |
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ctx.Handle(500, "repo.GetRepositoryByName", nil) |
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return |
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} |
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|
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// only public pull don't need auth
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var askAuth = !(!repo.IsPrivate && isPull) |
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// check access
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if askAuth { |
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baHead := ctx.Req.Header.Get("Authorization") |
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if baHead == "" { |
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// ask auth
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authRequired(ctx) |
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return |
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} |
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auths := strings.Fields(baHead) |
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// currently check basic auth
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// TODO: support digit auth
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if len(auths) != 2 || auths[0] != "Basic" { |
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ctx.Handle(401, "no basic auth and digit auth", nil) |
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return |
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} |
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authUsername, passwd, err := basicDecode(auths[1]) |
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if err != nil { |
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ctx.Handle(401, "no basic auth and digit auth", nil) |
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return |
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} |
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authUser, err := models.GetUserByName(authUsername) |
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if err != nil { |
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ctx.Handle(401, "no basic auth and digit auth", nil) |
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return |
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} |
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newUser := &models.User{Passwd: passwd} |
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newUser.EncodePasswd() |
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if authUser.Passwd != newUser.Passwd { |
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ctx.Handle(401, "no basic auth and digit auth", nil) |
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return |
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} |
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var tp = models.AU_WRITABLE |
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if isPull { |
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tp = models.AU_READABLE |
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} |
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has, err := models.HasAccess(authUsername, username+"/"+reponame, tp) |
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if err != nil { |
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ctx.Handle(401, "no basic auth and digit auth", nil) |
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return |
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} else if !has { |
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if tp == models.AU_READABLE { |
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has, err = models.HasAccess(authUsername, username+"/"+reponame, models.AU_WRITABLE) |
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if err != nil || !has { |
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ctx.Handle(401, "no basic auth and digit auth", nil) |
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return |
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} |
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} else { |
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ctx.Handle(401, "no basic auth and digit auth", nil) |
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return |
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} |
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} |
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} |
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config := Config{base.RepoRootPath, "git", true, true} |
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handler := HttpBackend(&config) |
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handler(ctx.ResponseWriter, ctx.Req) |
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/* Webdav |
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dir := models.RepoPath(username, reponame) |
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prefix := path.Join("/", username, params["reponame"]) |
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server := webdav.NewServer( |
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dir, prefix, true) |
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server.ServeHTTP(ctx.ResponseWriter, ctx.Req) |
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*/ |
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} |
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type route struct { |
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cr *regexp.Regexp |
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method string |
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handler func(handler) |
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} |
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type Config struct { |
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ReposRoot string |
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GitBinPath string |
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UploadPack bool |
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ReceivePack bool |
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} |
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type handler struct { |
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*Config |
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w http.ResponseWriter |
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r *http.Request |
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Dir string |
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File string |
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} |
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var routes = []route{ |
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{regexp.MustCompile("(.*?)/git-upload-pack$"), "POST", serviceUploadPack}, |
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{regexp.MustCompile("(.*?)/git-receive-pack$"), "POST", serviceReceivePack}, |
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{regexp.MustCompile("(.*?)/info/refs$"), "GET", getInfoRefs}, |
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{regexp.MustCompile("(.*?)/HEAD$"), "GET", getTextFile}, |
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{regexp.MustCompile("(.*?)/objects/info/alternates$"), "GET", getTextFile}, |
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{regexp.MustCompile("(.*?)/objects/info/http-alternates$"), "GET", getTextFile}, |
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{regexp.MustCompile("(.*?)/objects/info/packs$"), "GET", getInfoPacks}, |
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{regexp.MustCompile("(.*?)/objects/info/[^/]*$"), "GET", getTextFile}, |
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{regexp.MustCompile("(.*?)/objects/[0-9a-f]{2}/[0-9a-f]{38}$"), "GET", getLooseObject}, |
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{regexp.MustCompile("(.*?)/objects/pack/pack-[0-9a-f]{40}\\.pack$"), "GET", getPackFile}, |
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{regexp.MustCompile("(.*?)/objects/pack/pack-[0-9a-f]{40}\\.idx$"), "GET", getIdxFile}, |
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} |
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// Request handling function
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func HttpBackend(config *Config) http.HandlerFunc { |
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return func(w http.ResponseWriter, r *http.Request) { |
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//log.Printf("%s %s %s %s", r.RemoteAddr, r.Method, r.URL.Path, r.Proto)
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for _, route := range routes { |
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if m := route.cr.FindStringSubmatch(r.URL.Path); m != nil { |
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if route.method != r.Method { |
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renderMethodNotAllowed(w, r) |
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return |
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} |
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file := strings.Replace(r.URL.Path, m[1]+"/", "", 1) |
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dir, err := getGitDir(config, m[1]) |
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if err != nil { |
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log.Print(err) |
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renderNotFound(w) |
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return |
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} |
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hr := handler{config, w, r, dir, file} |
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route.handler(hr) |
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return |
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} |
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} |
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renderNotFound(w) |
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return |
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} |
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} |
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// Actual command handling functions
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func serviceUploadPack(hr handler) { |
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serviceRpc("upload-pack", hr) |
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} |
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func serviceReceivePack(hr handler) { |
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serviceRpc("receive-pack", hr) |
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} |
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func serviceRpc(rpc string, hr handler) { |
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w, r, dir := hr.w, hr.r, hr.Dir |
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access := hasAccess(r, hr.Config, dir, rpc, true) |
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if access == false { |
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renderNoAccess(w) |
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return |
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} |
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input, _ := ioutil.ReadAll(r.Body) |
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w.Header().Set("Content-Type", fmt.Sprintf("application/x-git-%s-result", rpc)) |
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w.WriteHeader(http.StatusOK) |
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args := []string{rpc, "--stateless-rpc", dir} |
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cmd := exec.Command(hr.Config.GitBinPath, args...) |
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cmd.Dir = dir |
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in, err := cmd.StdinPipe() |
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if err != nil { |
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log.Print(err) |
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} |
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stdout, err := cmd.StdoutPipe() |
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if err != nil { |
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log.Print(err) |
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} |
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err = cmd.Start() |
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if err != nil { |
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log.Print(err) |
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} |
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in.Write(input) |
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io.Copy(w, stdout) |
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cmd.Wait() |
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} |
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func getInfoRefs(hr handler) { |
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w, r, dir := hr.w, hr.r, hr.Dir |
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serviceName := getServiceType(r) |
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access := hasAccess(r, hr.Config, dir, serviceName, false) |
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if access { |
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args := []string{serviceName, "--stateless-rpc", "--advertise-refs", "."} |
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refs := gitCommand(hr.Config.GitBinPath, dir, args...) |
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hdrNocache(w) |
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w.Header().Set("Content-Type", fmt.Sprintf("application/x-git-%s-advertisement", serviceName)) |
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w.WriteHeader(http.StatusOK) |
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w.Write(packetWrite("# service=git-" + serviceName + "\n")) |
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w.Write(packetFlush()) |
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w.Write(refs) |
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} else { |
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updateServerInfo(hr.Config.GitBinPath, dir) |
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hdrNocache(w) |
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sendFile("text/plain; charset=utf-8", hr) |
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} |
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} |
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func getInfoPacks(hr handler) { |
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hdrCacheForever(hr.w) |
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sendFile("text/plain; charset=utf-8", hr) |
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} |
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func getLooseObject(hr handler) { |
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hdrCacheForever(hr.w) |
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sendFile("application/x-git-loose-object", hr) |
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} |
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func getPackFile(hr handler) { |
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hdrCacheForever(hr.w) |
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sendFile("application/x-git-packed-objects", hr) |
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} |
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func getIdxFile(hr handler) { |
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hdrCacheForever(hr.w) |
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sendFile("application/x-git-packed-objects-toc", hr) |
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} |
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func getTextFile(hr handler) { |
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hdrNocache(hr.w) |
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sendFile("text/plain", hr) |
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} |
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// Logic helping functions
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func sendFile(contentType string, hr handler) { |
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w, r := hr.w, hr.r |
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reqFile := path.Join(hr.Dir, hr.File) |
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//fmt.Println("sendFile:", reqFile)
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f, err := os.Stat(reqFile) |
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if os.IsNotExist(err) { |
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renderNotFound(w) |
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return |
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} |
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w.Header().Set("Content-Type", contentType) |
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w.Header().Set("Content-Length", fmt.Sprintf("%d", f.Size())) |
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w.Header().Set("Last-Modified", f.ModTime().Format(http.TimeFormat)) |
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http.ServeFile(w, r, reqFile) |
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} |
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func getGitDir(config *Config, filePath string) (string, error) { |
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root := config.ReposRoot |
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if root == "" { |
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cwd, err := os.Getwd() |
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if err != nil { |
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log.Print(err) |
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return "", err |
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} |
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root = cwd |
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} |
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f := path.Join(root, filePath) |
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if _, err := os.Stat(f); os.IsNotExist(err) { |
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return "", err |
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} |
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return f, nil |
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} |
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func getServiceType(r *http.Request) string { |
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serviceType := r.FormValue("service") |
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if s := strings.HasPrefix(serviceType, "git-"); !s { |
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return "" |
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} |
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return strings.Replace(serviceType, "git-", "", 1) |
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} |
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|
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func hasAccess(r *http.Request, config *Config, dir string, rpc string, checkContentType bool) bool { |
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if checkContentType { |
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if r.Header.Get("Content-Type") != fmt.Sprintf("application/x-git-%s-request", rpc) { |
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return false |
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} |
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} |
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|
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if !(rpc == "upload-pack" || rpc == "receive-pack") { |
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return false |
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} |
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if rpc == "receive-pack" { |
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return config.ReceivePack |
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} |
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if rpc == "upload-pack" { |
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return config.UploadPack |
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} |
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return getConfigSetting(config.GitBinPath, rpc, dir) |
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} |
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|
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func getConfigSetting(gitBinPath, serviceName string, dir string) bool { |
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serviceName = strings.Replace(serviceName, "-", "", -1) |
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setting := getGitConfig(gitBinPath, "http."+serviceName, dir) |
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if serviceName == "uploadpack" { |
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return setting != "false" |
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} |
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return setting == "true" |
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} |
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func getGitConfig(gitBinPath, configName string, dir string) string { |
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args := []string{"config", configName} |
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out := string(gitCommand(gitBinPath, dir, args...)) |
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return out[0 : len(out)-1] |
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} |
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|
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func updateServerInfo(gitBinPath, dir string) []byte { |
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args := []string{"update-server-info"} |
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return gitCommand(gitBinPath, dir, args...) |
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} |
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|
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func gitCommand(gitBinPath, dir string, args ...string) []byte { |
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command := exec.Command(gitBinPath, args...) |
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command.Dir = dir |
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out, err := command.Output() |
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|
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if err != nil { |
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log.Print(err) |
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} |
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return out |
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} |
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|
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// HTTP error response handling functions
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|
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func renderMethodNotAllowed(w http.ResponseWriter, r *http.Request) { |
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if r.Proto == "HTTP/1.1" { |
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w.WriteHeader(http.StatusMethodNotAllowed) |
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w.Write([]byte("Method Not Allowed")) |
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} else { |
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w.WriteHeader(http.StatusBadRequest) |
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w.Write([]byte("Bad Request")) |
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} |
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} |
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|
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func renderNotFound(w http.ResponseWriter) { |
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w.WriteHeader(http.StatusNotFound) |
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w.Write([]byte("Not Found")) |
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} |
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|
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func renderNoAccess(w http.ResponseWriter) { |
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w.WriteHeader(http.StatusForbidden) |
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w.Write([]byte("Forbidden")) |
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} |
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|
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// Packet-line handling function
|
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|
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func packetFlush() []byte { |
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return []byte("0000") |
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} |
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|
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func packetWrite(str string) []byte { |
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s := strconv.FormatInt(int64(len(str)+4), 16) |
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|
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if len(s)%4 != 0 { |
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s = strings.Repeat("0", 4-len(s)%4) + s |
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} |
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|
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return []byte(s + str) |
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} |
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|
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// Header writing functions
|
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|
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func hdrNocache(w http.ResponseWriter) { |
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w.Header().Set("Expires", "Fri, 01 Jan 1980 00:00:00 GMT") |
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w.Header().Set("Pragma", "no-cache") |
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w.Header().Set("Cache-Control", "no-cache, max-age=0, must-revalidate") |
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} |
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|
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func hdrCacheForever(w http.ResponseWriter) { |
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now := time.Now().Unix() |
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expires := now + 31536000 |
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w.Header().Set("Date", fmt.Sprintf("%d", now)) |
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w.Header().Set("Expires", fmt.Sprintf("%d", expires)) |
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w.Header().Set("Cache-Control", "public, max-age=31536000") |
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} |
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|
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// Main
|
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/* |
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func main() { |
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http.HandleFunc("/", requestHandler()) |
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|
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err := http.ListenAndServe(":8080", nil) |
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if err != nil { |
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log.Fatal("ListenAndServe: ", err) |
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} |
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}*/ |
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