fastpastebin/assets/static/ab0x.go

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// Code generated by fileb0x at "2019-10-13 14:20:59.955085 +0500 +05 m=+0.010529793" from config file "fileb0x.yml" DO NOT EDIT.
// modification hash(8f975a34eb8b2501d1e41979919bd369.238872c2653234e79053054d1ba776af)
package static
import (
"bytes"
"context"
"io"
"net/http"
"os"
"path"
"golang.org/x/net/webdav"
)
var (
// CTX is a context for webdav vfs
CTX = context.Background()
// FS is a virtual memory file system
FS = webdav.NewMemFS()
// Handler is used to server files through a http handler
Handler *webdav.Handler
// HTTP is the http file system
HTTP http.FileSystem = new(HTTPFS)
)
// HTTPFS implements http.FileSystem
type HTTPFS struct {
// Prefix allows to limit the path of all requests. F.e. a prefix "css" would allow only calls to /css/*
Prefix string
}
func init() {
err := CTX.Err()
if err != nil {
panic(err)
}
err = FS.Mkdir(CTX, "static/", 0777)
if err != nil && err != os.ErrExist {
panic(err)
}
err = FS.Mkdir(CTX, "static/css/", 0777)
if err != nil && err != os.ErrExist {
panic(err)
}
err = FS.Mkdir(CTX, "static/js/", 0777)
if err != nil && err != os.ErrExist {
panic(err)
}
Handler = &webdav.Handler{
FileSystem: FS,
LockSystem: webdav.NewMemLS(),
}
}
// Open a file
func (hfs *HTTPFS) Open(path string) (http.File, error) {
path = hfs.Prefix + path
f, err := FS.OpenFile(CTX, path, os.O_RDONLY, 0644)
if err != nil {
return nil, err
}
return f, nil
}
// ReadFile is adapTed from ioutil
func ReadFile(path string) ([]byte, error) {
f, err := FS.OpenFile(CTX, path, os.O_RDONLY, 0644)
if err != nil {
return nil, err
}
buf := bytes.NewBuffer(make([]byte, 0, bytes.MinRead))
// If the buffer overflows, we will get bytes.ErrTooLarge.
// Return that as an error. Any other panic remains.
defer func() {
e := recover()
if e == nil {
return
}
if panicErr, ok := e.(error); ok && panicErr == bytes.ErrTooLarge {
err = panicErr
} else {
panic(e)
}
}()
_, err = buf.ReadFrom(f)
return buf.Bytes(), err
}
// WriteFile is adapTed from ioutil
func WriteFile(filename string, data []byte, perm os.FileMode) error {
f, err := FS.OpenFile(CTX, filename, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, perm)
if err != nil {
return err
}
n, err := f.Write(data)
if err == nil && n < len(data) {
err = io.ErrShortWrite
}
if err1 := f.Close(); err == nil {
err = err1
}
return err
}
// WalkDirs looks for files in the given dir and returns a list of files in it
// usage for all files in the b0x: WalkDirs("", false)
func WalkDirs(name string, includeDirsInList bool, files ...string) ([]string, error) {
f, err := FS.OpenFile(CTX, name, os.O_RDONLY, 0)
if err != nil {
return nil, err
}
fileInfos, err := f.Readdir(0)
if err != nil {
return nil, err
}
err = f.Close()
if err != nil {
return nil, err
}
for _, info := range fileInfos {
filename := path.Join(name, info.Name())
if includeDirsInList || !info.IsDir() {
files = append(files, filename)
}
if info.IsDir() {
files, err = WalkDirs(filename, includeDirsInList, files...)
if err != nil {
return nil, err
}
}
}
return files, nil
}