Files
team/server/public/model/command_response_test.go
c724bb82b4 model: add strict validation and tests for CommandResponse (#36824)
* model: add strict validation and tests for CommandResponse

* model: use utf8.RuneCountInString to enforce character limit instead of bytes

* model: validate CommandResponse fields and log instead of erroring

* fix: add validation url prefix http/https

* Move command response validation logging to call sites

* Guard against nil response before validation in commandWebhook

* Update server/channels/web/webhook.go

Co-authored-by: Ben Schumacher <[email protected]>

* Update server/channels/app/command.go

Co-authored-by: Ben Schumacher <[email protected]>

* Update webhook.go

* Validate goto_location scheme to prevent XSS

* Allow all URL schemes in goto_location validation

---------

Co-authored-by: Ben Schumacher <[email protected]>
Co-authored-by: Mattermost Build <[email protected]>
2026-07-08 09:06:17 +02:00

279 lines
6.0 KiB
Go

// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
package model
import (
"strings"
"testing"
"github.com/stretchr/testify/assert"
)
func TestCommandResponseFromHTTPBody(t *testing.T) {
for _, test := range []struct {
ContentType string
Body string
ExpectedText string
}{
{"", "foo", "foo"},
{"text/plain", "foo", "foo"},
{"application/json", `{"text": "foo"}`, "foo"},
{"application/json; charset=utf-8", `{"text": "foo"}`, "foo"},
{"application/json", `{"text": "` + "```" + `haskell\nlet\n\nf1 = [ 3 | a <- [1]]\nf2 = [ 4 | b <- [2]]\nf3 = \\p -> 5\n\nin 1\n` + "```" + `", "skip_slack_parsing": true}`,
"```haskell\nlet\n\nf1 = [ 3 | a <- [1]]\nf2 = [ 4 | b <- [2]]\nf3 = \\p -> 5\n\nin 1\n```",
},
} {
response, err := CommandResponseFromHTTPBody(test.ContentType, strings.NewReader(test.Body))
assert.NoError(t, err)
assert.Equal(t, test.ExpectedText, response.Text)
}
}
func TestCommandResponseFromPlainText(t *testing.T) {
response := CommandResponseFromPlainText("foo")
assert.Equal(t, "foo", response.Text)
}
func TestCommandResponseFromJSON(t *testing.T) {
t.Parallel()
testCases := []struct {
Description string
Json string
ExpectedCommandResponse *CommandResponse
ShouldError bool
ExpectInvalid bool
}{
{
"empty response",
"",
nil,
true,
false,
},
{
"malformed response",
`{"text": }`,
nil,
true,
false,
},
{
"invalid response",
`{"text": "test", "response_type": 5}`,
nil,
true,
false,
},
{
"ephemeral response",
`{
"response_type": "ephemeral",
"text": "response text",
"username": "response username",
"channel_id": "response channel id",
"icon_url": "http://example.com/icon.png",
"goto_location": "http://example.com/icon.png",
"attachments": [{
"text": "attachment 1 text",
"pretext": "attachment 1 pretext"
},{
"text": "attachment 2 text",
"fields": [{
"title": "field 1",
"value": "value 1",
"short": true
},{
"title": "field 2",
"value": [],
"short": false
}]
}]
}`,
&CommandResponse{
ResponseType: "ephemeral",
Text: "response text",
Username: "response username",
ChannelId: "response channel id",
IconURL: "http://example.com/icon.png",
GotoLocation: "http://example.com/icon.png",
Attachments: []*MessageAttachment{
{
Text: "attachment 1 text",
Pretext: "attachment 1 pretext",
},
{
Text: "attachment 2 text",
Fields: []*MessageAttachmentField{
{
Title: "field 1",
Value: "value 1",
Short: true,
},
{
Title: "field 2",
Value: "[]",
Short: false,
},
},
},
},
},
false,
false,
},
{
"null array items",
`{"attachments":[{"fields":[{"title":"foo","value":"bar","short":true}, null]}, null]}`,
&CommandResponse{
Attachments: []*MessageAttachment{
{
Fields: []*MessageAttachmentField{
{
Title: "foo",
Value: "bar",
Short: true,
},
},
},
},
},
false,
false,
},
{
"multiple responses returned",
`
{
"text": "message 1",
"extra_responses": [
{"text": "message 2"}
]
}
`,
&CommandResponse{
Text: "message 1",
ExtraResponses: []*CommandResponse{
{
Text: "message 2",
},
},
},
false,
false,
},
{
"invalid response type should fail validation",
`{"text": "hello","response_type": "shliapa_type"}`,
&CommandResponse{
ResponseType: "shliapa_type",
Text: "hello",
},
false,
true,
},
{
"invalid response type inside extra_responses should fail validation",
`{
"text": "main ok",
"response_type": "in_channel",
"extra_responses": [
{"text": "nested bad", "response_type": "invalid_nested_type"}
]
}`,
&CommandResponse{
ResponseType: "in_channel",
Text: "main ok",
ExtraResponses: []*CommandResponse{
{
ResponseType: "invalid_nested_type",
Text: "nested bad",
},
},
},
false,
true,
},
{
"valid https goto_location should pass validation",
`{"text": "hello", "goto_location": "https://example.com"}`,
&CommandResponse{
Text: "hello",
GotoLocation: "https://example.com",
},
false,
false,
},
{
"multiple responses returned, with attachments",
`
{
"text": "message 1",
"attachments":[{"fields":[{"title":"foo","value":"bar","short":true}]}],
"extra_responses": [
{
"text": "message 2",
"attachments":[{"fields":[{"title":"foo 2","value":"bar 2","short":false}]}]
}
]
}`,
&CommandResponse{
Text: "message 1",
Attachments: []*MessageAttachment{
{
Fields: []*MessageAttachmentField{
{
Title: "foo",
Value: "bar",
Short: true,
},
},
},
},
ExtraResponses: []*CommandResponse{
{
Text: "message 2",
Attachments: []*MessageAttachment{
{
Fields: []*MessageAttachmentField{
{
Title: "foo 2",
Value: "bar 2",
Short: false,
},
},
},
},
},
},
},
false,
false,
},
}
for _, testCase := range testCases {
t.Run(testCase.Description, func(t *testing.T) {
t.Parallel()
response, err := CommandResponseFromJSON(strings.NewReader(testCase.Json))
if testCase.ShouldError {
assert.Error(t, err)
assert.Nil(t, response)
} else {
assert.NoError(t, err)
if assert.NotNil(t, response) {
assert.Equal(t, testCase.ExpectedCommandResponse, response)
if testCase.ExpectInvalid {
assert.NotNil(t, response.IsValid())
} else {
assert.Nil(t, response.IsValid())
}
}
}
})
}
}