gosora/common/files.go
Azareal 9eae8da180 Refactored the error handlers.
The static files for themes are now automatically reloaded without having to restart Gosora.
Added the Get and Set methods to the SFileList type.
Static files can now be updated during execution in a thread-safe way.

Removed Riot as a dependency.
Began work on making Cosora responsive like the other themes.
2017-12-01 02:04:29 +00:00

103 lines
2.3 KiB
Go

package common
import (
"bytes"
"mime"
"strings"
"sync"
//"errors"
"compress/gzip"
"io/ioutil"
"net/http"
"os"
"path/filepath"
)
type SFileList map[string]SFile
var StaticFiles SFileList = make(map[string]SFile)
var staticFileMutex sync.RWMutex
type SFile struct {
Data []byte
GzipData []byte
Pos int64
Length int64
GzipLength int64
Mimetype string
Info os.FileInfo
FormattedModTime string
}
type CSSData struct {
ComingSoon string
}
func (list SFileList) Init() error {
return filepath.Walk("./public", func(path string, f os.FileInfo, err error) error {
if f.IsDir() {
return nil
}
path = strings.Replace(path, "\\", "/", -1)
data, err := ioutil.ReadFile(path)
if err != nil {
return err
}
path = strings.TrimPrefix(path, "public/")
var ext = filepath.Ext("/public/" + path)
gzipData := compressBytesGzip(data)
list.Set("/static/"+path, SFile{data, gzipData, 0, int64(len(data)), int64(len(gzipData)), mime.TypeByExtension(ext), f, f.ModTime().UTC().Format(http.TimeFormat)})
debugLogf("Added the '%s' static file.", path)
return nil
})
}
func (list SFileList) Add(path string, prefix string) error {
data, err := ioutil.ReadFile(path)
if err != nil {
return err
}
fi, err := os.Open(path)
if err != nil {
return err
}
f, err := fi.Stat()
if err != nil {
return err
}
var ext = filepath.Ext(path)
path = strings.TrimPrefix(path, prefix)
gzipData := compressBytesGzip(data)
list.Set("/static"+path, SFile{data, gzipData, 0, int64(len(data)), int64(len(gzipData)), mime.TypeByExtension(ext), f, f.ModTime().UTC().Format(http.TimeFormat)})
debugLogf("Added the '%s' static file", path)
return nil
}
func (list SFileList) Get(name string) (file SFile, exists bool) {
staticFileMutex.RLock()
defer staticFileMutex.RUnlock()
file, exists = list[name]
return file, exists
}
func (list SFileList) Set(name string, data SFile) {
staticFileMutex.Lock()
defer staticFileMutex.Unlock()
list[name] = data
}
func compressBytesGzip(in []byte) []byte {
var buff bytes.Buffer
gz := gzip.NewWriter(&buff)
_, _ = gz.Write(in) // TODO: What if this errors? What circumstances could it error under? Should we add a second return value?
_ = gz.Close()
return buff.Bytes()
}