Handle CORS requests (#6289)

vendor/github.com/Unknwon/com/dir.go

@@ -32,7 +32,7 @@ func IsDir(dir string) bool {
 	return f.IsDir()
 }
 
-func statDir(dirPath, recPath string, includeDir, isDirOnly bool) ([]string, error) {
+func statDir(dirPath, recPath string, includeDir, isDirOnly, followSymlinks bool) ([]string, error) {
 	dir, err := os.Open(dirPath)
 	if err != nil {
 		return nil, err
@@ -56,13 +56,29 @@ func statDir(dirPath, recPath string, includeDir, isDirOnly bool) ([]string, err
 			if includeDir {
 				statList = append(statList, relPath+"/")
 			}
-			s, err := statDir(curPath, relPath, includeDir, isDirOnly)
+			s, err := statDir(curPath, relPath, includeDir, isDirOnly, followSymlinks)
 			if err != nil {
 				return nil, err
 			}
 			statList = append(statList, s...)
 		} else if !isDirOnly {
 			statList = append(statList, relPath)
+		} else if followSymlinks && fi.Mode()&os.ModeSymlink != 0 {
+			link, err := os.Readlink(curPath)
+			if err != nil {
+				return nil, err
+			}
+
+			if IsDir(link) {
+				if includeDir {
+					statList = append(statList, relPath+"/")
+				}
+				s, err := statDir(curPath, relPath, includeDir, isDirOnly, followSymlinks)
+				if err != nil {
+					return nil, err
+				}
+				statList = append(statList, s...)
+			}
 		}
 	}
 	return statList, nil
@@ -84,7 +100,26 @@ func StatDir(rootPath string, includeDir ...bool) ([]string, error) {
 	if len(includeDir) >= 1 {
 		isIncludeDir = includeDir[0]
 	}
-	return statDir(rootPath, "", isIncludeDir, false)
+	return statDir(rootPath, "", isIncludeDir, false, false)
+}
+
+// LstatDir gathers information of given directory by depth-first.
+// It returns slice of file list, follows symbolic links and includes subdirectories if enabled;
+// it returns error and nil slice when error occurs in underlying functions,
+// or given path is not a directory or does not exist.
+//
+// Slice does not include given path itself.
+// If subdirectories is enabled, they will have suffix '/'.
+func LstatDir(rootPath string, includeDir ...bool) ([]string, error) {
+	if !IsDir(rootPath) {
+		return nil, errors.New("not a directory or does not exist: " + rootPath)
+	}
+
+	isIncludeDir := false
+	if len(includeDir) >= 1 {
+		isIncludeDir = includeDir[0]
+	}
+	return statDir(rootPath, "", isIncludeDir, false, true)
 }
 
 // GetAllSubDirs returns all subdirectories of given root path.
@@ -93,7 +128,17 @@ func GetAllSubDirs(rootPath string) ([]string, error) {
 	if !IsDir(rootPath) {
 		return nil, errors.New("not a directory or does not exist: " + rootPath)
 	}
-	return statDir(rootPath, "", true, true)
+	return statDir(rootPath, "", true, true, false)
+}
+
+// LgetAllSubDirs returns all subdirectories of given root path, including
+// following symbolic links, if any.
+// Slice does not include given path itself.
+func LgetAllSubDirs(rootPath string) ([]string, error) {
+	if !IsDir(rootPath) {
+		return nil, errors.New("not a directory or does not exist: " + rootPath)
+	}
+	return statDir(rootPath, "", true, true, true)
 }
 
 // GetFileListBySuffix returns an ordered list of file paths.

vendor/github.com/Unknwon/com/go.mod

@@ -0,0 +1,8 @@
+module github.com/Unknwon/com
+
+require (
+	github.com/gopherjs/gopherjs v0.0.0-20181103185306-d547d1d9531e // indirect
+	github.com/jtolds/gls v4.2.1+incompatible // indirect
+	github.com/smartystreets/assertions v0.0.0-20190116191733-b6c0e53d7304 // indirect
+	github.com/smartystreets/goconvey v0.0.0-20181108003508-044398e4856c
+)

vendor/github.com/Unknwon/com/go.sum

@@ -0,0 +1,8 @@
+github.com/gopherjs/gopherjs v0.0.0-20181103185306-d547d1d9531e h1:JKmoR8x90Iww1ks85zJ1lfDGgIiMDuIptTOhJq+zKyg=
+github.com/gopherjs/gopherjs v0.0.0-20181103185306-d547d1d9531e/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
+github.com/jtolds/gls v4.2.1+incompatible h1:fSuqC+Gmlu6l/ZYAoZzx2pyucC8Xza35fpRVWLVmUEE=
+github.com/jtolds/gls v4.2.1+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
+github.com/smartystreets/assertions v0.0.0-20190116191733-b6c0e53d7304 h1:Jpy1PXuP99tXNrhbq2BaPz9B+jNAvH1JPQQpG/9GCXY=
+github.com/smartystreets/assertions v0.0.0-20190116191733-b6c0e53d7304/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
+github.com/smartystreets/goconvey v0.0.0-20181108003508-044398e4856c h1:Ho+uVpkel/udgjbwB5Lktg9BtvJSh2DT0Hi6LPSyI2w=
+github.com/smartystreets/goconvey v0.0.0-20181108003508-044398e4856c/go.mod h1:XDJAKZRPZ1CvBcN2aX5YOUTYGHki24fSF0Iv48Ibg0s=

vendor/github.com/Unknwon/com/html.go

@@ -36,7 +36,7 @@ func HtmlEncode(str string) string {
 	return html.EscapeString(str)
 }
 
-// decode string to html chars
+// HtmlDecode decodes string to html chars
 func HtmlDecode(str string) string {
 	return html.UnescapeString(str)
 }

vendor/github.com/Unknwon/com/http.go

@@ -177,7 +177,7 @@ func FetchFiles(client *http.Client, files []RawFile, header http.Header) error
 	return nil
 }
 
-// FetchFiles uses command `curl` to fetch files specified by the rawURL field in parallel.
+// FetchFilesCurl uses command `curl` to fetch files specified by the rawURL field in parallel.
 func FetchFilesCurl(files []RawFile, curlOptions ...string) error {
 	ch := make(chan error, len(files))
 	for i := range files {

vendor/github.com/Unknwon/com/math.go

@@ -14,12 +14,12 @@
 
 package com
 
-// PowInt is int type of math.Pow function. 
+// PowInt is int type of math.Pow function.
 func PowInt(x int, y int) int {
 	if y <= 0 {
 		return 1
 	} else {
-		if y % 2 == 0 {
+		if y%2 == 0 {
 			sqrt := PowInt(x, y/2)
 			return sqrt * sqrt
 		} else {

vendor/github.com/Unknwon/com/regex.go

@@ -37,19 +37,19 @@ func init() {
 	regex_url = regexp.MustCompile(regex_url_pattern)
 }
 
-// validate string is an email address, if not return false
+// IsEmail validates string is an email address, if not return false
 // basically validation can match 99% cases
 func IsEmail(email string) bool {
 	return regex_email.MatchString(email)
 }
 
-// validate string is an email address, if not return false
+// IsEmailRFC validates string is an email address, if not return false
 // this validation omits RFC 2822
 func IsEmailRFC(email string) bool {
 	return regex_strict_email.MatchString(email)
 }
 
-// validate string is a url link, if not return false
+// IsUrl validates string is a url link, if not return false
 // simple validation can match 99% cases
 func IsUrl(url string) bool {
 	return regex_url.MatchString(url)

vendor/github.com/Unknwon/com/slice.go

@@ -44,7 +44,7 @@ func CompareSliceStr(s1, s2 []string) bool {
 	return true
 }
 
-// CompareSliceStr compares two 'string' type slices.
+// CompareSliceStrU compares two 'string' type slices.
 // It returns true if elements are the same, and ignores the order.
 func CompareSliceStrU(s1, s2 []string) bool {
 	if len(s1) != len(s2) {