Spun attachments into seperate go file (#701)

Moved attachments into seperate go file

routers/repo/attachment.go

@@ -0,0 +1,73 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package repo
+
+import (
+	"fmt"
+	"net/http"
+	"strings"
+
+	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/modules/context"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/setting"
+)
+
+func renderAttachmentSettings(ctx *context.Context) {
+	ctx.Data["RequireDropzone"] = true
+	ctx.Data["IsAttachmentEnabled"] = setting.AttachmentEnabled
+	ctx.Data["AttachmentAllowedTypes"] = setting.AttachmentAllowedTypes
+	ctx.Data["AttachmentMaxSize"] = setting.AttachmentMaxSize
+	ctx.Data["AttachmentMaxFiles"] = setting.AttachmentMaxFiles
+}
+
+// UploadAttachment response for uploading issue's attachment
+func UploadAttachment(ctx *context.Context) {
+	if !setting.AttachmentEnabled {
+		ctx.Error(404, "attachment is not enabled")
+		return
+	}
+
+	file, header, err := ctx.Req.FormFile("file")
+	if err != nil {
+		ctx.Error(500, fmt.Sprintf("FormFile: %v", err))
+		return
+	}
+	defer file.Close()
+
+	buf := make([]byte, 1024)
+	n, _ := file.Read(buf)
+	if n > 0 {
+		buf = buf[:n]
+	}
+	fileType := http.DetectContentType(buf)
+
+	allowedTypes := strings.Split(setting.AttachmentAllowedTypes, ",")
+	allowed := false
+	for _, t := range allowedTypes {
+		t := strings.Trim(t, " ")
+		if t == "*/*" || t == fileType {
+			allowed = true
+			break
+		}
+	}
+
+	if !allowed {
+		ctx.Error(400, ErrFileTypeForbidden.Error())
+		return
+	}
+
+	attach, err := models.NewAttachment(header.Filename, buf, file)
+	if err != nil {
+		ctx.Error(500, fmt.Sprintf("NewAttachment: %v", err))
+		return
+	}
+
+	log.Trace("New attachment uploaded: %s", attach.UUID)
+	ctx.JSON(200, map[string]string{
+		"uuid": attach.UUID,
+	})
+}
+