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	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.
		
			
				
	
	
		
			187 lines
		
	
	
		
			7.4 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			187 lines
		
	
	
		
			7.4 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
// Copyright 2021 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package integration
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import (
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	"bytes"
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	"fmt"
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	"io"
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	"mime/multipart"
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	"net/http"
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	"testing"
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	auth_model "code.gitea.io/gitea/models/auth"
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	issues_model "code.gitea.io/gitea/models/issues"
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	repo_model "code.gitea.io/gitea/models/repo"
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	"code.gitea.io/gitea/models/unittest"
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	user_model "code.gitea.io/gitea/models/user"
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	api "code.gitea.io/gitea/modules/structs"
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	"code.gitea.io/gitea/tests"
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	"github.com/stretchr/testify/assert"
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)
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func TestAPIGetIssueAttachment(t *testing.T) {
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	defer tests.PrepareTestEnv(t)()
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	attachment := unittest.AssertExistsAndLoadBean(t, &repo_model.Attachment{ID: 1})
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	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: attachment.RepoID})
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	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{RepoID: attachment.IssueID})
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	repoOwner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: repo.OwnerID})
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	session := loginUser(t, repoOwner.Name)
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	token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeReadIssue)
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	req := NewRequest(t, "GET", fmt.Sprintf("/api/v1/repos/%s/%s/issues/%d/assets/%d", repoOwner.Name, repo.Name, issue.Index, attachment.ID)).
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		AddTokenAuth(token)
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	resp := session.MakeRequest(t, req, http.StatusOK)
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	apiAttachment := new(api.Attachment)
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	DecodeJSON(t, resp, &apiAttachment)
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	unittest.AssertExistsAndLoadBean(t, &repo_model.Attachment{ID: apiAttachment.ID, IssueID: issue.ID})
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}
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func TestAPIListIssueAttachments(t *testing.T) {
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	defer tests.PrepareTestEnv(t)()
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	attachment := unittest.AssertExistsAndLoadBean(t, &repo_model.Attachment{ID: 1})
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	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: attachment.RepoID})
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	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{RepoID: attachment.IssueID})
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	repoOwner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: repo.OwnerID})
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	session := loginUser(t, repoOwner.Name)
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	token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeReadIssue)
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	req := NewRequest(t, "GET", fmt.Sprintf("/api/v1/repos/%s/%s/issues/%d/assets", repoOwner.Name, repo.Name, issue.Index)).
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		AddTokenAuth(token)
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	resp := session.MakeRequest(t, req, http.StatusOK)
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	apiAttachment := new([]api.Attachment)
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	DecodeJSON(t, resp, &apiAttachment)
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	unittest.AssertExistsAndLoadBean(t, &repo_model.Attachment{ID: (*apiAttachment)[0].ID, IssueID: issue.ID})
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}
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func TestAPICreateIssueAttachment(t *testing.T) {
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	defer tests.PrepareTestEnv(t)()
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	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
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	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{RepoID: repo.ID})
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	repoOwner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: repo.OwnerID})
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	session := loginUser(t, repoOwner.Name)
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	token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeWriteIssue)
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	filename := "image.png"
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	buff := generateImg()
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	body := &bytes.Buffer{}
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	// Setup multi-part
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	writer := multipart.NewWriter(body)
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	part, err := writer.CreateFormFile("attachment", filename)
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	assert.NoError(t, err)
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	_, err = io.Copy(part, &buff)
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	assert.NoError(t, err)
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	err = writer.Close()
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	assert.NoError(t, err)
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	req := NewRequestWithBody(t, "POST", fmt.Sprintf("/api/v1/repos/%s/%s/issues/%d/assets", repoOwner.Name, repo.Name, issue.Index), body).
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		AddTokenAuth(token)
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	req.Header.Add("Content-Type", writer.FormDataContentType())
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	resp := session.MakeRequest(t, req, http.StatusCreated)
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	apiAttachment := new(api.Attachment)
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	DecodeJSON(t, resp, &apiAttachment)
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	unittest.AssertExistsAndLoadBean(t, &repo_model.Attachment{ID: apiAttachment.ID, IssueID: issue.ID})
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}
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func TestAPICreateIssueAttachmentWithUnallowedFile(t *testing.T) {
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	defer tests.PrepareTestEnv(t)()
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	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 1})
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	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{RepoID: repo.ID})
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	repoOwner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: repo.OwnerID})
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	session := loginUser(t, repoOwner.Name)
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	token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeWriteIssue)
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	filename := "file.bad"
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	body := &bytes.Buffer{}
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	// Setup multi-part.
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	writer := multipart.NewWriter(body)
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	_, err := writer.CreateFormFile("attachment", filename)
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	assert.NoError(t, err)
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	err = writer.Close()
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	assert.NoError(t, err)
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	req := NewRequestWithBody(t, "POST", fmt.Sprintf("/api/v1/repos/%s/%s/issues/%d/assets", repoOwner.Name, repo.Name, issue.Index), body).
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		AddTokenAuth(token)
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	req.Header.Add("Content-Type", writer.FormDataContentType())
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	session.MakeRequest(t, req, http.StatusUnprocessableEntity)
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}
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func TestAPIEditIssueAttachment(t *testing.T) {
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	defer tests.PrepareTestEnv(t)()
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	const newAttachmentName = "hello_world.txt"
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	attachment := unittest.AssertExistsAndLoadBean(t, &repo_model.Attachment{ID: 1})
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	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: attachment.RepoID})
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	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{RepoID: attachment.IssueID})
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	repoOwner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: repo.OwnerID})
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	session := loginUser(t, repoOwner.Name)
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	token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeWriteIssue)
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	urlStr := fmt.Sprintf("/api/v1/repos/%s/%s/issues/%d/assets/%d",
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		repoOwner.Name, repo.Name, issue.Index, attachment.ID)
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	req := NewRequestWithValues(t, "PATCH", urlStr, map[string]string{
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		"name": newAttachmentName,
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	}).AddTokenAuth(token)
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	resp := session.MakeRequest(t, req, http.StatusCreated)
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	apiAttachment := new(api.Attachment)
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	DecodeJSON(t, resp, &apiAttachment)
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	unittest.AssertExistsAndLoadBean(t, &repo_model.Attachment{ID: apiAttachment.ID, IssueID: issue.ID, Name: apiAttachment.Name})
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}
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func TestAPIEditIssueAttachmentWithUnallowedFile(t *testing.T) {
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	defer tests.PrepareTestEnv(t)()
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	attachment := unittest.AssertExistsAndLoadBean(t, &repo_model.Attachment{ID: 1})
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	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: attachment.RepoID})
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	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: attachment.IssueID})
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	repoOwner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: repo.OwnerID})
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	session := loginUser(t, repoOwner.Name)
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	token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeWriteIssue)
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	filename := "file.bad"
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	urlStr := fmt.Sprintf("/api/v1/repos/%s/%s/issues/%d/assets/%d", repoOwner.Name, repo.Name, issue.Index, attachment.ID)
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	req := NewRequestWithValues(t, "PATCH", urlStr, map[string]string{
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		"name": filename,
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	}).AddTokenAuth(token)
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	session.MakeRequest(t, req, http.StatusUnprocessableEntity)
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}
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func TestAPIDeleteIssueAttachment(t *testing.T) {
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	defer tests.PrepareTestEnv(t)()
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	attachment := unittest.AssertExistsAndLoadBean(t, &repo_model.Attachment{ID: 1})
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	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: attachment.RepoID})
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	issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{RepoID: attachment.IssueID})
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	repoOwner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: repo.OwnerID})
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	session := loginUser(t, repoOwner.Name)
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	token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeWriteIssue)
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	req := NewRequest(t, "DELETE", fmt.Sprintf("/api/v1/repos/%s/%s/issues/%d/assets/%d", repoOwner.Name, repo.Name, issue.Index, attachment.ID)).
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		AddTokenAuth(token)
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	session.MakeRequest(t, req, http.StatusNoContent)
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	unittest.AssertNotExistsBean(t, &repo_model.Attachment{ID: attachment.ID, IssueID: issue.ID})
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}
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