mirror of
https://github.com/go-gitea/gitea.git
synced 2025-11-04 04:14:01 +01:00
7adc4717ec
From testing, I found that issue posters and users with repository write access are able to edit attachment names in a way that circumvents the instance-level file extension restrictions using the edit attachment APIs. This snapshot adds checks for these endpoints.
403 lines
11 KiB
Go
403 lines
11 KiB
Go
// Copyright 2018 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package repo
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import (
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"io"
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"net/http"
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"strings"
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repo_model "code.gitea.io/gitea/models/repo"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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api "code.gitea.io/gitea/modules/structs"
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"code.gitea.io/gitea/modules/web"
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attachment_service "code.gitea.io/gitea/services/attachment"
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"code.gitea.io/gitea/services/context"
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"code.gitea.io/gitea/services/context/upload"
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"code.gitea.io/gitea/services/convert"
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)
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func checkReleaseMatchRepo(ctx *context.APIContext, releaseID int64) bool {
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release, err := repo_model.GetReleaseByID(ctx, releaseID)
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if err != nil {
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if repo_model.IsErrReleaseNotExist(err) {
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ctx.NotFound()
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return false
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}
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ctx.Error(http.StatusInternalServerError, "GetReleaseByID", err)
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return false
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}
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if release.RepoID != ctx.Repo.Repository.ID {
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ctx.NotFound()
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return false
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}
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return true
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}
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// GetReleaseAttachment gets a single attachment of the release
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func GetReleaseAttachment(ctx *context.APIContext) {
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// swagger:operation GET /repos/{owner}/{repo}/releases/{id}/assets/{attachment_id} repository repoGetReleaseAttachment
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// ---
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// summary: Get a release attachment
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// produces:
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// - application/json
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// parameters:
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// - name: owner
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// in: path
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// description: owner of the repo
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// type: string
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// required: true
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// - name: repo
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// in: path
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// description: name of the repo
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// type: string
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// required: true
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// - name: id
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// in: path
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// description: id of the release
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// type: integer
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// format: int64
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// required: true
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// - name: attachment_id
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// in: path
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// description: id of the attachment to get
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// type: integer
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// format: int64
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// required: true
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// responses:
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// "200":
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// "$ref": "#/responses/Attachment"
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// "404":
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// "$ref": "#/responses/notFound"
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releaseID := ctx.PathParamInt64(":id")
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if !checkReleaseMatchRepo(ctx, releaseID) {
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return
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}
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attachID := ctx.PathParamInt64(":attachment_id")
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attach, err := repo_model.GetAttachmentByID(ctx, attachID)
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if err != nil {
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if repo_model.IsErrAttachmentNotExist(err) {
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ctx.NotFound()
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return
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}
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ctx.Error(http.StatusInternalServerError, "GetAttachmentByID", err)
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return
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}
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if attach.ReleaseID != releaseID {
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log.Info("User requested attachment is not in release, release_id %v, attachment_id: %v", releaseID, attachID)
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ctx.NotFound()
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return
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}
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// FIXME Should prove the existence of the given repo, but results in unnecessary database requests
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ctx.JSON(http.StatusOK, convert.ToAPIAttachment(ctx.Repo.Repository, attach))
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}
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// ListReleaseAttachments lists all attachments of the release
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func ListReleaseAttachments(ctx *context.APIContext) {
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// swagger:operation GET /repos/{owner}/{repo}/releases/{id}/assets repository repoListReleaseAttachments
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// ---
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// summary: List release's attachments
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// produces:
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// - application/json
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// parameters:
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// - name: owner
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// in: path
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// description: owner of the repo
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// type: string
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// required: true
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// - name: repo
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// in: path
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// description: name of the repo
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// type: string
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// required: true
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// - name: id
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// in: path
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// description: id of the release
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// type: integer
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// format: int64
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// required: true
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// responses:
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// "200":
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// "$ref": "#/responses/AttachmentList"
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// "404":
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// "$ref": "#/responses/notFound"
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releaseID := ctx.PathParamInt64(":id")
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release, err := repo_model.GetReleaseByID(ctx, releaseID)
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if err != nil {
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if repo_model.IsErrReleaseNotExist(err) {
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ctx.NotFound()
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return
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}
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ctx.Error(http.StatusInternalServerError, "GetReleaseByID", err)
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return
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}
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if release.RepoID != ctx.Repo.Repository.ID {
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ctx.NotFound()
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return
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}
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if err := release.LoadAttributes(ctx); err != nil {
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ctx.Error(http.StatusInternalServerError, "LoadAttributes", err)
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return
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}
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ctx.JSON(http.StatusOK, convert.ToAPIRelease(ctx, ctx.Repo.Repository, release).Attachments)
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}
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// CreateReleaseAttachment creates an attachment and saves the given file
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func CreateReleaseAttachment(ctx *context.APIContext) {
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// swagger:operation POST /repos/{owner}/{repo}/releases/{id}/assets repository repoCreateReleaseAttachment
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// ---
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// summary: Create a release attachment
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// produces:
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// - application/json
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// consumes:
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// - multipart/form-data
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// - application/octet-stream
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// parameters:
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// - name: owner
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// in: path
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// description: owner of the repo
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// type: string
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// required: true
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// - name: repo
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// in: path
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// description: name of the repo
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// type: string
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// required: true
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// - name: id
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// in: path
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// description: id of the release
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// type: integer
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// format: int64
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// required: true
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// - name: name
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// in: query
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// description: name of the attachment
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// type: string
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// required: false
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// - name: attachment
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// in: formData
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// description: attachment to upload
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// type: file
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// required: false
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// responses:
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// "201":
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// "$ref": "#/responses/Attachment"
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// "400":
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// "$ref": "#/responses/error"
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// "404":
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// "$ref": "#/responses/notFound"
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// Check if attachments are enabled
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if !setting.Attachment.Enabled {
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ctx.NotFound("Attachment is not enabled")
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return
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}
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// Check if release exists an load release
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releaseID := ctx.PathParamInt64(":id")
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if !checkReleaseMatchRepo(ctx, releaseID) {
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return
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}
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// Get uploaded file from request
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var content io.ReadCloser
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var filename string
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var size int64 = -1
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if strings.HasPrefix(strings.ToLower(ctx.Req.Header.Get("Content-Type")), "multipart/form-data") {
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file, header, err := ctx.Req.FormFile("attachment")
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if err != nil {
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ctx.Error(http.StatusInternalServerError, "GetFile", err)
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return
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}
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defer file.Close()
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content = file
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size = header.Size
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filename = header.Filename
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if name := ctx.FormString("name"); name != "" {
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filename = name
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}
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} else {
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content = ctx.Req.Body
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filename = ctx.FormString("name")
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}
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if filename == "" {
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ctx.Error(http.StatusBadRequest, "CreateReleaseAttachment", "Could not determine name of attachment.")
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return
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}
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// Create a new attachment and save the file
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attach, err := attachment_service.UploadAttachment(ctx, content, setting.Repository.Release.AllowedTypes, size, &repo_model.Attachment{
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Name: filename,
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UploaderID: ctx.Doer.ID,
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RepoID: ctx.Repo.Repository.ID,
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ReleaseID: releaseID,
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})
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if err != nil {
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if upload.IsErrFileTypeForbidden(err) {
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ctx.Error(http.StatusBadRequest, "DetectContentType", err)
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return
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}
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ctx.Error(http.StatusInternalServerError, "NewAttachment", err)
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return
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}
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ctx.JSON(http.StatusCreated, convert.ToAPIAttachment(ctx.Repo.Repository, attach))
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}
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// EditReleaseAttachment updates the given attachment
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func EditReleaseAttachment(ctx *context.APIContext) {
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// swagger:operation PATCH /repos/{owner}/{repo}/releases/{id}/assets/{attachment_id} repository repoEditReleaseAttachment
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// ---
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// summary: Edit a release attachment
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// produces:
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// - application/json
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// consumes:
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// - application/json
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// parameters:
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// - name: owner
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// in: path
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// description: owner of the repo
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// type: string
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// required: true
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// - name: repo
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// in: path
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// description: name of the repo
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// type: string
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// required: true
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// - name: id
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// in: path
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// description: id of the release
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// type: integer
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// format: int64
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// required: true
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// - name: attachment_id
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// in: path
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// description: id of the attachment to edit
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// type: integer
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// format: int64
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// required: true
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// - name: body
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// in: body
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// schema:
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// "$ref": "#/definitions/EditAttachmentOptions"
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// responses:
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// "201":
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// "$ref": "#/responses/Attachment"
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// "422":
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// "$ref": "#/responses/validationError"
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// "404":
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// "$ref": "#/responses/notFound"
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form := web.GetForm(ctx).(*api.EditAttachmentOptions)
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// Check if release exists an load release
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releaseID := ctx.PathParamInt64(":id")
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if !checkReleaseMatchRepo(ctx, releaseID) {
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return
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}
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attachID := ctx.PathParamInt64(":attachment_id")
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attach, err := repo_model.GetAttachmentByID(ctx, attachID)
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if err != nil {
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if repo_model.IsErrAttachmentNotExist(err) {
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ctx.NotFound()
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return
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}
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ctx.Error(http.StatusInternalServerError, "GetAttachmentByID", err)
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return
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}
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if attach.ReleaseID != releaseID {
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log.Info("User requested attachment is not in release, release_id %v, attachment_id: %v", releaseID, attachID)
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ctx.NotFound()
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return
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}
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// FIXME Should prove the existence of the given repo, but results in unnecessary database requests
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if form.Name != "" {
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attach.Name = form.Name
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}
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if err := attachment_service.UpdateAttachment(ctx, setting.Repository.Release.AllowedTypes, attach); err != nil {
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if upload.IsErrFileTypeForbidden(err) {
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ctx.Error(http.StatusUnprocessableEntity, "", err)
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return
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}
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ctx.Error(http.StatusInternalServerError, "UpdateAttachment", attach)
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return
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}
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ctx.JSON(http.StatusCreated, convert.ToAPIAttachment(ctx.Repo.Repository, attach))
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}
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// DeleteReleaseAttachment delete a given attachment
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func DeleteReleaseAttachment(ctx *context.APIContext) {
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// swagger:operation DELETE /repos/{owner}/{repo}/releases/{id}/assets/{attachment_id} repository repoDeleteReleaseAttachment
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// ---
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// summary: Delete a release attachment
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// produces:
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// - application/json
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// parameters:
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// - name: owner
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// in: path
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// description: owner of the repo
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// type: string
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// required: true
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// - name: repo
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// in: path
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// description: name of the repo
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// type: string
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// required: true
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// - name: id
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// in: path
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// description: id of the release
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// type: integer
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// format: int64
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// required: true
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// - name: attachment_id
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// in: path
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// description: id of the attachment to delete
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// type: integer
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// format: int64
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// required: true
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// responses:
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// "204":
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// "$ref": "#/responses/empty"
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// "404":
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// "$ref": "#/responses/notFound"
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// Check if release exists an load release
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releaseID := ctx.PathParamInt64(":id")
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if !checkReleaseMatchRepo(ctx, releaseID) {
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return
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}
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attachID := ctx.PathParamInt64(":attachment_id")
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attach, err := repo_model.GetAttachmentByID(ctx, attachID)
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if err != nil {
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if repo_model.IsErrAttachmentNotExist(err) {
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ctx.NotFound()
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return
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}
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ctx.Error(http.StatusInternalServerError, "GetAttachmentByID", err)
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return
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}
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if attach.ReleaseID != releaseID {
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log.Info("User requested attachment is not in release, release_id %v, attachment_id: %v", releaseID, attachID)
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ctx.NotFound()
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return
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}
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// FIXME Should prove the existence of the given repo, but results in unnecessary database requests
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if err := repo_model.DeleteAttachment(ctx, attach, true); err != nil {
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ctx.Error(http.StatusInternalServerError, "DeleteAttachment", err)
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return
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}
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ctx.Status(http.StatusNoContent)
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}
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