From 01e9a34952bd6ddd383680b0ca2312e476ad07a6 Mon Sep 17 00:00:00 2001
From: horus_arch
Date: Sun, 19 Apr 2015 22:09:52 +0200
Subject: Initial commit.

---
 uploadedfile/uploadedfile.go | 155 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 155 insertions(+)
 create mode 100644 uploadedfile/uploadedfile.go

(limited to 'uploadedfile/uploadedfile.go')

diff --git a/uploadedfile/uploadedfile.go b/uploadedfile/uploadedfile.go
new file mode 100644
index 0000000..a3c8345
--- /dev/null
+++ b/uploadedfile/uploadedfile.go
@@ -0,0 +1,155 @@
+package uploadedfile
+
+import (
+	"errors"
+	"image"
+	"image/gif"
+	"image/jpeg"
+	"image/png"
+	"net/http"
+	"os"
+)
+
+type UploadedFile struct {
+	filename string
+	path     string
+	mime     string
+	hash     string
+	thumbs   []*ThumbFile
+}
+
+var supportedTypes = map[string]bool{
+	"image/jpeg": true,
+	"image/jpg":  true,
+	"image/gif":  true,
+	"image/png":  true,
+}
+
+func NewUploadedFile(filename, path string, thumbs []*ThumbFile) (*UploadedFile, error) {
+	file, err := os.Open(path)
+
+	if err != nil {
+		return nil, err
+	}
+
+	buff := make([]byte, 512) // http://golang.org/pkg/net/http/#DetectContentType
+	_, err = file.Read(buff)
+
+	if err != nil {
+		return nil, err
+	}
+
+	filetype := http.DetectContentType(buff)
+
+	if _, ok := supportedTypes[filetype]; !ok {
+		return nil, errors.New("Unsupported file type!")
+	}
+
+	return &UploadedFile{
+		filename,
+		path,
+		filetype,
+		"",
+		thumbs,
+	}, nil
+}
+
+func (this *UploadedFile) GetFilename() string {
+	return this.filename
+}
+
+func (this *UploadedFile) SetFilename(filename string) {
+	this.filename = filename
+}
+
+func (this *UploadedFile) GetHash() string {
+	return this.hash
+}
+
+func (this *UploadedFile) SetHash(hash string) {
+	this.hash = hash
+}
+
+func (this *UploadedFile) SetPath(path string) {
+	// TODO: find a better location for this
+	os.Remove(this.path)
+
+	this.path = path
+}
+
+func (this *UploadedFile) GetPath() string {
+	return this.path
+}
+
+func (this *UploadedFile) GetMime() string {
+	return this.mime
+}
+
+func (this *UploadedFile) SetMime(mime string) {
+	this.mime = mime
+}
+
+func (this *UploadedFile) GetThumbs() []*ThumbFile {
+	return this.thumbs
+}
+
+func (this *UploadedFile) FileSize() (int64, error) {
+	f, err := os.Open(this.path)
+	if err != nil {
+		return 0, err
+	}
+
+	stats, err := f.Stat()
+	if err != nil {
+		return 0, err
+	}
+
+	size := stats.Size()
+
+	return size, nil
+}
+
+func (this *UploadedFile) Clean() {
+	os.Remove(this.path)
+
+	for _, thumb := range this.thumbs {
+		os.Remove(thumb.path)
+	}
+}
+
+func (this *UploadedFile) Dimensions() (int, int, error) {
+	f, err := os.Open(this.path)
+	if err != nil {
+		return 0, 0, err
+	}
+
+	var cfg image.Config
+	switch true {
+	case this.IsGif():
+		cfg, err = gif.DecodeConfig(f)
+	case this.IsPng():
+		cfg, err = png.DecodeConfig(f)
+	case this.IsJpeg():
+		cfg, err = jpeg.DecodeConfig(f)
+	default:
+		return 0, 0, errors.New("Invalid mime type!")
+	}
+
+	if err != nil {
+		return 0, 0, err
+	}
+
+	return cfg.Width, cfg.Height, nil
+}
+
+func (this *UploadedFile) IsJpeg() bool {
+	return (this.GetMime() == "image/jpeg" || this.GetMime() == "image/jpg")
+}
+
+func (this *UploadedFile) IsPng() bool {
+	return this.GetMime() == "image/png"
+}
+
+func (this *UploadedFile) IsGif() bool {
+	return this.GetMime() == "image/gif"
+}
-- 
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