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forgejo/routers/repo/attachment.go
silverwind cda44750cb
Attachments: Add extension support, allow all types for releases (#12465)
* Attachments: Add extension support, allow all types for releases

- Add support for file extensions, matching the `accept` attribute of `<input type="file">`
- Add support for type wildcard mime types, e.g. `image/*`
- Create repository.release.ALLOWED_TYPES setting (default unrestricted)
- Change default for attachment.ALLOWED_TYPES to a list of extensions
- Split out POST /attachments into two endpoints for issue/pr and
  releases to prevent circumvention of allowed types check

Fixes: https://github.com/go-gitea/gitea/pull/10172
Fixes: https://github.com/go-gitea/gitea/issues/7266
Fixes: https://github.com/go-gitea/gitea/pull/12460
Ref: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/file#Unique_file_type_specifiers

* rename function

* extract GET routes out of RepoMustNotBeArchived

Co-authored-by: Lauris BH <lauris@nix.lv>
2020-10-05 01:49:33 -04:00

159 lines
3.8 KiB
Go

// 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"
"code.gitea.io/gitea/models"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/storage"
"code.gitea.io/gitea/modules/upload"
)
// UploadIssueAttachment response for Issue/PR attachments
func UploadIssueAttachment(ctx *context.Context) {
uploadAttachment(ctx, setting.Attachment.AllowedTypes)
}
// UploadReleaseAttachment response for uploading release attachments
func UploadReleaseAttachment(ctx *context.Context) {
uploadAttachment(ctx, setting.Repository.Release.AllowedTypes)
}
// UploadAttachment response for uploading attachments
func uploadAttachment(ctx *context.Context, allowedTypes string) {
if !setting.Attachment.Enabled {
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]
}
err = upload.Verify(buf, header.Filename, allowedTypes)
if err != nil {
ctx.Error(400, err.Error())
return
}
attach, err := models.NewAttachment(&models.Attachment{
UploaderID: ctx.User.ID,
Name: 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,
})
}
// DeleteAttachment response for deleting issue's attachment
func DeleteAttachment(ctx *context.Context) {
file := ctx.Query("file")
attach, err := models.GetAttachmentByUUID(file)
if err != nil {
ctx.Error(400, err.Error())
return
}
if !ctx.IsSigned || (ctx.User.ID != attach.UploaderID) {
ctx.Error(403)
return
}
err = models.DeleteAttachment(attach, true)
if err != nil {
ctx.Error(500, fmt.Sprintf("DeleteAttachment: %v", err))
return
}
ctx.JSON(200, map[string]string{
"uuid": attach.UUID,
})
}
// GetAttachment serve attachements
func GetAttachment(ctx *context.Context) {
attach, err := models.GetAttachmentByUUID(ctx.Params(":uuid"))
if err != nil {
if models.IsErrAttachmentNotExist(err) {
ctx.Error(404)
} else {
ctx.ServerError("GetAttachmentByUUID", err)
}
return
}
repository, unitType, err := attach.LinkedRepository()
if err != nil {
ctx.ServerError("LinkedRepository", err)
return
}
if repository == nil { //If not linked
if !(ctx.IsSigned && attach.UploaderID == ctx.User.ID) { //We block if not the uploader
ctx.Error(http.StatusNotFound)
return
}
} else { //If we have the repository we check access
perm, err := models.GetUserRepoPermission(repository, ctx.User)
if err != nil {
ctx.Error(http.StatusInternalServerError, "GetUserRepoPermission", err.Error())
return
}
if !perm.CanRead(unitType) {
ctx.Error(http.StatusNotFound)
return
}
}
if setting.Attachment.ServeDirect {
//If we have a signed url (S3, object storage), redirect to this directly.
u, err := storage.Attachments.URL(attach.RelativePath(), attach.Name)
if u != nil && err == nil {
if err := attach.IncreaseDownloadCount(); err != nil {
ctx.ServerError("Update", err)
return
}
ctx.Redirect(u.String())
return
}
}
//If we have matched and access to release or issue
fr, err := storage.Attachments.Open(attach.RelativePath())
if err != nil {
ctx.ServerError("Open", err)
return
}
defer fr.Close()
if err := attach.IncreaseDownloadCount(); err != nil {
ctx.ServerError("Update", err)
return
}
if err = ServeData(ctx, attach.Name, fr); err != nil {
ctx.ServerError("ServeData", err)
return
}
}