mirror of
https://github.com/caddyserver/caddy.git
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browse: Support absolute and recursive directory symlinks
This commit is contained in:
Mattias Wadman
parent
4e52b3fe8a
commit
981f364845
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@ -246,7 +246,9 @@ func directoryListing(files []os.FileInfo, canGoUp bool, urlPath string, config
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}
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}
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if f.IsDir() {
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isDir := f.IsDir() || isSymlinkTargetDir(f, urlPath, config)
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if isDir {
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name += "/"
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dirCount++
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} else {
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@ -260,7 +262,7 @@ func directoryListing(files []os.FileInfo, canGoUp bool, urlPath string, config
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url := url.URL{Path: "./" + name} // prepend with "./" to fix paths with ':' in the name
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fileinfos = append(fileinfos, FileInfo{
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IsDir: f.IsDir() || isSymlinkTargetDir(f, urlPath, config),
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IsDir: isDir,
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IsSymlink: isSymlink(f),
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Name: f.Name(),
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Size: f.Size(),
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@ -291,19 +293,19 @@ func isSymlinkTargetDir(f os.FileInfo, urlPath string, config *Config) bool {
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if !isSymlink(f) {
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return false
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}
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fullPath := func(fileName string) string {
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fullPath := filepath.Join(string(config.Fs.Root.(http.Dir)), urlPath, fileName)
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return filepath.Clean(fullPath)
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}
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target, err := os.Readlink(fullPath(f.Name()))
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// a bit strange but we want Stat thru the jailed filesystem to be safe
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target, err := config.Fs.Root.Open(filepath.Join(urlPath, f.Name()))
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if err != nil {
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return false
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}
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targetInfo, err := os.Lstat(fullPath(target))
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defer target.Close()
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targetInto, err := target.Stat()
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if err != nil {
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return false
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}
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return targetInfo.IsDir()
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return targetInto.IsDir()
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}
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// ServeHTTP determines if the request is for this plugin, and if all prerequisites are met.
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@ -3,12 +3,14 @@ package browse
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import (
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"context"
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"encoding/json"
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"io/ioutil"
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"net/http"
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"net/http/httptest"
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"net/url"
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"os"
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"path/filepath"
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"sort"
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"strings"
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"testing"
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"text/template"
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"time"
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@ -17,6 +19,8 @@ import (
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"github.com/mholt/caddy/caddyhttp/staticfiles"
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)
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const testDirPrefix = "caddy_browse_test"
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func TestSort(t *testing.T) {
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// making up []fileInfo with bogus values;
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// to be used to make up our "listing"
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@ -453,3 +457,146 @@ func TestBrowseRedirect(t *testing.T) {
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}
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}
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}
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func TestDirSymlink(t *testing.T) {
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testCases := []struct {
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source string
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target string
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pathScope string
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url string
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expectedName string
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expectedURL string
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}{
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// test case can expect a directory "dir" and a symlink to it called "symlink"
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{"dir", "$TMP/rel_symlink_to_dir", "/", "/",
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"rel_symlink_to_dir", "./rel_symlink_to_dir/"},
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{"$TMP/dir", "$TMP/abs_symlink_to_dir", "/", "/",
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"abs_symlink_to_dir", "./abs_symlink_to_dir/"},
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{"../../dir", "$TMP/sub/dir/rel_symlink_to_dir", "/", "/sub/dir/",
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"rel_symlink_to_dir", "./rel_symlink_to_dir/"},
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{"$TMP/dir", "$TMP/sub/dir/abs_symlink_to_dir", "/", "/sub/dir/",
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"abs_symlink_to_dir", "./abs_symlink_to_dir/"},
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{"../../dir", "$TMP/with/scope/rel_symlink_to_dir", "/with/scope", "/with/scope/",
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"rel_symlink_to_dir", "./rel_symlink_to_dir/"},
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{"$TMP/dir", "$TMP/with/scope/abs_symlink_to_dir", "/with/scope", "/with/scope/",
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"abs_symlink_to_dir", "./abs_symlink_to_dir/"},
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{"../../../../dir", "$TMP/with/scope/sub/dir/rel_symlink_to_dir", "/with/scope", "/with/scope/sub/dir/",
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"rel_symlink_to_dir", "./rel_symlink_to_dir/"},
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{"$TMP/dir", "$TMP/with/scope/sub/dir/abs_symlink_to_dir", "/with/scope", "/with/scope/sub/dir/",
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"abs_symlink_to_dir", "./abs_symlink_to_dir/"},
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{"symlink", "$TMP/rel_symlink_to_symlink", "/", "/",
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"rel_symlink_to_symlink", "./rel_symlink_to_symlink/"},
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{"$TMP/symlink", "$TMP/abs_symlink_to_symlink", "/", "/",
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"abs_symlink_to_symlink", "./abs_symlink_to_symlink/"},
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{"../../symlink", "$TMP/sub/dir/rel_symlink_to_symlink", "/", "/sub/dir/",
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"rel_symlink_to_symlink", "./rel_symlink_to_symlink/"},
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{"$TMP/symlink", "$TMP/sub/dir/abs_symlink_to_symlink", "/", "/sub/dir/",
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"abs_symlink_to_symlink", "./abs_symlink_to_symlink/"},
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{"../../symlink", "$TMP/with/scope/rel_symlink_to_symlink", "/with/scope", "/with/scope/",
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"rel_symlink_to_symlink", "./rel_symlink_to_symlink/"},
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{"$TMP/symlink", "$TMP/with/scope/abs_symlink_to_symlink", "/with/scope", "/with/scope/",
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"abs_symlink_to_symlink", "./abs_symlink_to_symlink/"},
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{"../../../../symlink", "$TMP/with/scope/sub/dir/rel_symlink_to_symlink", "/with/scope", "/with/scope/sub/dir/",
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"rel_symlink_to_symlink", "./rel_symlink_to_symlink/"},
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{"$TMP/symlink", "$TMP/with/scope/sub/dir/abs_symlink_to_symlink", "/with/scope", "/with/scope/sub/dir/",
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"abs_symlink_to_symlink", "./abs_symlink_to_symlink/"},
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}
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for i, tc := range testCases {
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func() {
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tmpdir, err := ioutil.TempDir("", testDirPrefix)
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if err != nil {
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t.Fatalf("failed to create test directory: %v", err)
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}
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defer os.RemoveAll(tmpdir)
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if err := os.MkdirAll(filepath.Join(tmpdir, "dir"), 0755); err != nil {
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t.Fatalf("failed to create test dir 'dir': %v", err)
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}
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if err := os.Symlink("dir", filepath.Join(tmpdir, "symlink")); err != nil {
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t.Fatalf("failed to create test symlink 'symlink': %v", err)
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}
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sourceResolved := strings.Replace(tc.source, "$TMP", tmpdir, -1)
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targetResolved := strings.Replace(tc.target, "$TMP", tmpdir, -1)
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if err := os.MkdirAll(filepath.Dir(sourceResolved), 0755); err != nil {
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t.Fatalf("failed to create source symlink dir: %v", err)
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}
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if err := os.MkdirAll(filepath.Dir(targetResolved), 0755); err != nil {
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t.Fatalf("failed to create target symlink dir: %v", err)
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}
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if err := os.Symlink(sourceResolved, targetResolved); err != nil {
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t.Fatalf("failed to create test symlink: %v", err)
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}
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b := Browse{
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Next: httpserver.HandlerFunc(func(w http.ResponseWriter, r *http.Request) (int, error) {
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t.Fatalf("Test %d - Next shouldn't be called", i)
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return 0, nil
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}),
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Configs: []Config{
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{
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PathScope: tc.pathScope,
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Fs: staticfiles.FileServer{
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Root: http.Dir(tmpdir),
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},
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},
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},
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}
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req, err := http.NewRequest("GET", tc.url, nil)
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req.Header.Add("Accept", "application/json")
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if err != nil {
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t.Fatalf("Test %d - could not create HTTP request: %v", i, err)
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}
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rec := httptest.NewRecorder()
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returnCode, _ := b.ServeHTTP(rec, req)
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if returnCode != http.StatusOK {
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t.Fatalf("Test %d - wrong return code, expected %d, got %d",
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i, http.StatusOK, returnCode)
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}
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type jsonEntry struct {
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Name string
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IsDir bool
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IsSymlink bool
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URL string
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}
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var entries []jsonEntry
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if err := json.Unmarshal(rec.Body.Bytes(), &entries); err != nil {
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t.Fatalf("Test %d - failed to parse json: %v", i, err)
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}
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found := false
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for _, e := range entries {
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if e.Name != tc.expectedName {
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continue
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}
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found = true
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if !e.IsDir {
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t.Fatalf("Test %d - expected to be a dir, got %v", i, e.IsDir)
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}
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if !e.IsSymlink {
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t.Fatalf("Test %d - expected to be a symlink, got %v", i, e.IsSymlink)
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}
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if e.URL != tc.expectedURL {
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t.Fatalf("Test %d - wrong URL, expected %v, got %v", i, tc.expectedURL, e.URL)
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}
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}
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if !found {
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t.Fatalf("Test %d - failed, could not find name %v", i, tc.expectedName)
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}
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}()
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}
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}
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