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38cf7b0141
The io/ioutil package has been deprecated as of Go 1.16, see https://golang.org/doc/go1.16#ioutil. This commit replaces the existing io/ioutil functions with their new definitions in io and os packages. Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
79 lines
2.8 KiB
Go
79 lines
2.8 KiB
Go
// Copyright 2017 HootSuite Media Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the License);
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an AS IS BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Modified hereafter by contributors to runatlantis/atlantis.
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package events
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import (
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"errors"
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"fmt"
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"io"
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"net/http"
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"github.com/google/go-github/v31/github"
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)
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//go:generate pegomock generate -m --use-experimental-model-gen --package mocks -o mocks/mock_github_request_validator.go GithubRequestValidator
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// GithubRequestValidator handles checking if GitHub requests are signed
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// properly by the secret.
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type GithubRequestValidator interface {
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// Validate returns the JSON payload of the request.
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// If secret is not empty, it checks that the request was signed
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// by secret and returns an error if it was not.
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// If secret is empty, it does not check if the request was signed.
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Validate(r *http.Request, secret []byte) ([]byte, error)
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}
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// DefaultGithubRequestValidator handles checking if GitHub requests are signed
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// properly by the secret.
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type DefaultGithubRequestValidator struct{}
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// Validate returns the JSON payload of the request.
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// If secret is not empty, it checks that the request was signed
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// by secret and returns an error if it was not.
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// If secret is empty, it does not check if the request was signed.
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func (d *DefaultGithubRequestValidator) Validate(r *http.Request, secret []byte) ([]byte, error) {
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if len(secret) != 0 {
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return d.validateAgainstSecret(r, secret)
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}
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return d.validateWithoutSecret(r)
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}
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func (d *DefaultGithubRequestValidator) validateAgainstSecret(r *http.Request, secret []byte) ([]byte, error) {
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payload, err := github.ValidatePayload(r, secret)
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if err != nil {
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return nil, err
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}
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return payload, nil
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}
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func (d *DefaultGithubRequestValidator) validateWithoutSecret(r *http.Request) ([]byte, error) {
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switch ct := r.Header.Get("Content-Type"); ct {
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case "application/json":
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payload, err := io.ReadAll(r.Body)
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if err != nil {
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return nil, fmt.Errorf("could not read body: %s", err)
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}
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return payload, nil
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case "application/x-www-form-urlencoded":
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// GitHub stores the json payload as a form value.
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payloadForm := r.FormValue("payload")
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if payloadForm == "" {
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return nil, errors.New("webhook request did not contain expected 'payload' form value")
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}
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return []byte(payloadForm), nil
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default:
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return nil, fmt.Errorf("webhook request has unsupported Content-Type %q", ct)
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}
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}
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