When `webhook.PROXY_URL` has been set, the old code will check if the proxy host is in `ALLOWED_HOST_LIST` or reject requests through the proxy. It requires users to add the proxy host to `ALLOWED_HOST_LIST`. However, it actually allows all requests to any port on the host, when the proxy host is probably an internal address. But things may be even worse. `ALLOWED_HOST_LIST` doesn't really work when requests are sent to the allowed proxy, and the proxy could forward them to any hosts. This PR fixes it by: - If the proxy has been set, always allow connectioins to the host and port. - Check `ALLOWED_HOST_LIST` before forwarding.
		
			
				
	
	
		
			127 lines
		
	
	
		
			3.2 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			127 lines
		
	
	
		
			3.2 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| // Copyright 2019 The Gitea Authors. All rights reserved.
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| // SPDX-License-Identifier: MIT
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| 
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| package webhook
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| 
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| import (
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| 	"context"
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| 	"net/http"
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| 	"net/http/httptest"
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| 	"net/url"
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| 	"testing"
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| 	"time"
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| 
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| 	"code.gitea.io/gitea/models/db"
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| 	"code.gitea.io/gitea/models/unittest"
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| 	webhook_model "code.gitea.io/gitea/models/webhook"
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| 	"code.gitea.io/gitea/modules/hostmatcher"
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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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| 	webhook_module "code.gitea.io/gitea/modules/webhook"
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| 
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| 	"github.com/stretchr/testify/assert"
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| 	"github.com/stretchr/testify/require"
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| )
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| 
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| func TestWebhookProxy(t *testing.T) {
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| 	oldWebhook := setting.Webhook
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| 	t.Cleanup(func() {
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| 		setting.Webhook = oldWebhook
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| 	})
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| 
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| 	setting.Webhook.ProxyURL = "http://localhost:8080"
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| 	setting.Webhook.ProxyURLFixed, _ = url.Parse(setting.Webhook.ProxyURL)
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| 	setting.Webhook.ProxyHosts = []string{"*.discordapp.com", "discordapp.com"}
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| 
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| 	allowedHostMatcher := hostmatcher.ParseHostMatchList("webhook.ALLOWED_HOST_LIST", "discordapp.com,s.discordapp.com")
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| 
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| 	tests := []struct {
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| 		req     string
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| 		want    string
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| 		wantErr bool
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| 	}{
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| 		{
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| 			req:     "https://discordapp.com/api/webhooks/xxxxxxxxx/xxxxxxxxxxxxxxxxxxx",
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| 			want:    "http://localhost:8080",
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| 			wantErr: false,
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| 		},
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| 		{
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| 			req:     "http://s.discordapp.com/assets/xxxxxx",
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| 			want:    "http://localhost:8080",
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| 			wantErr: false,
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| 		},
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| 		{
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| 			req:     "http://github.com/a/b",
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| 			want:    "",
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| 			wantErr: false,
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| 		},
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| 		{
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| 			req:     "http://www.discordapp.com/assets/xxxxxx",
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| 			want:    "",
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| 			wantErr: true,
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| 		},
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| 	}
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| 	for _, tt := range tests {
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| 		t.Run(tt.req, func(t *testing.T) {
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| 			req, err := http.NewRequest("POST", tt.req, nil)
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| 			require.NoError(t, err)
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| 
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| 			u, err := webhookProxy(allowedHostMatcher)(req)
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| 			if tt.wantErr {
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| 				assert.Error(t, err)
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| 				return
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| 			}
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| 
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| 			assert.NoError(t, err)
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| 
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| 			got := ""
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| 			if u != nil {
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| 				got = u.String()
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| 			}
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| 			assert.Equal(t, tt.want, got)
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| 		})
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| 	}
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| }
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| 
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| func TestWebhookDeliverAuthorizationHeader(t *testing.T) {
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| 	assert.NoError(t, unittest.PrepareTestDatabase())
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| 
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| 	done := make(chan struct{}, 1)
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| 	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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| 		assert.Equal(t, "/webhook", r.URL.Path)
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| 		assert.Equal(t, "Bearer s3cr3t-t0ken", r.Header.Get("Authorization"))
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| 		w.WriteHeader(200)
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| 		done <- struct{}{}
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| 	}))
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| 	t.Cleanup(s.Close)
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| 
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| 	hook := &webhook_model.Webhook{
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| 		RepoID:      3,
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| 		URL:         s.URL + "/webhook",
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| 		ContentType: webhook_model.ContentTypeJSON,
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| 		IsActive:    true,
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| 		Type:        webhook_module.GITEA,
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| 	}
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| 	err := hook.SetHeaderAuthorization("Bearer s3cr3t-t0ken")
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| 	assert.NoError(t, err)
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| 	assert.NoError(t, webhook_model.CreateWebhook(db.DefaultContext, hook))
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| 	db.GetEngine(db.DefaultContext).NoAutoTime().DB().Logger.ShowSQL(true)
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| 
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| 	hookTask := &webhook_model.HookTask{HookID: hook.ID, EventType: webhook_module.HookEventPush, Payloader: &api.PushPayload{}}
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| 
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| 	hookTask, err = webhook_model.CreateHookTask(db.DefaultContext, hookTask)
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| 	assert.NoError(t, err)
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| 	if !assert.NotNil(t, hookTask) {
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| 		return
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| 	}
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| 
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| 	assert.NoError(t, Deliver(context.Background(), hookTask))
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| 	select {
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| 	case <-done:
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| 	case <-time.After(5 * time.Second):
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| 		t.Fatal("waited to long for request to happen")
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| 	}
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| 
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| 	assert.True(t, hookTask.IsSucceed)
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| }
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