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@@ -0,0 +1,459 @@
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+package repo
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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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+ config := Config{base.RepoRootPath, "git", true, true}
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+
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+ handler := HttpBackend(&config)
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+ handler(ctx.ResponseWriter, ctx.Req)
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+
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+ /* Webdav
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+ dir := models.RepoPath(username, reponame)
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+
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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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+
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+ server.ServeHTTP(ctx.ResponseWriter, ctx.Req)
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+ */
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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+// Actual command handling functions
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+
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+func serviceUploadPack(hr handler) {
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+ serviceRpc("upload-pack", hr)
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+}
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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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+
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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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+
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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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+
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+ input, _ := ioutil.ReadAll(r.Body)
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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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+// Logic helping functions
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+
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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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+
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+ //fmt.Println("sendFile:", reqFile)
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+
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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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+
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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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+
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+func getGitDir(config *Config, filePath string) (string, error) {
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+ root := config.ReposRoot
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+
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+ if root == "" {
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+ cwd, err := os.Getwd()
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+
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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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+
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+ root = cwd
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+ }
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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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+
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+ return f, nil
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+}
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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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+
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+ if s := strings.HasPrefix(serviceType, "git-"); !s {
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+ return ""
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+ }
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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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+
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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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+
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+ if serviceName == "uploadpack" {
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+ return setting != "false"
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+ }
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+
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+ return setting == "true"
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+}
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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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+
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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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+
|
|
|
+ return []byte(s + str)
|
|
|
+}
|
|
|
+
|
|
|
+// Header writing functions
|
|
|
+
|
|
|
+func hdrNocache(w http.ResponseWriter) {
|
|
|
+ w.Header().Set("Expires", "Fri, 01 Jan 1980 00:00:00 GMT")
|
|
|
+ w.Header().Set("Pragma", "no-cache")
|
|
|
+ w.Header().Set("Cache-Control", "no-cache, max-age=0, must-revalidate")
|
|
|
+}
|
|
|
+
|
|
|
+func hdrCacheForever(w http.ResponseWriter) {
|
|
|
+ now := time.Now().Unix()
|
|
|
+ expires := now + 31536000
|
|
|
+ w.Header().Set("Date", fmt.Sprintf("%d", now))
|
|
|
+ w.Header().Set("Expires", fmt.Sprintf("%d", expires))
|
|
|
+ w.Header().Set("Cache-Control", "public, max-age=31536000")
|
|
|
+}
|
|
|
+
|
|
|
+// Main
|
|
|
+/*
|
|
|
+func main() {
|
|
|
+ http.HandleFunc("/", requestHandler())
|
|
|
+
|
|
|
+ err := http.ListenAndServe(":8080", nil)
|
|
|
+ if err != nil {
|
|
|
+ log.Fatal("ListenAndServe: ", err)
|
|
|
+ }
|
|
|
+}*/
|