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main.go
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main.go
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package main
import (
"context"
"encoding/json"
"fmt"
"net/http"
"strings"
"github.com/aws/aws-lambda-go/events"
"github.com/aws/aws-lambda-go/lambda"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/dynamodb"
"github.com/step-security/secure-repo/remediation/dependabot"
"github.com/step-security/secure-repo/remediation/docker"
"github.com/step-security/secure-repo/remediation/secrets"
"github.com/step-security/secure-repo/remediation/workflow"
"github.com/step-security/secure-repo/remediation/workflow/permissions"
)
type Handler struct {
}
func (h Handler) Invoke(ctx context.Context, req []byte) ([]byte, error) {
httpRequest := &events.APIGatewayV2HTTPRequest{}
err := json.Unmarshal([]byte(req), &httpRequest)
if err == nil && httpRequest.RawPath != "" {
sess := session.Must(session.NewSessionWithOptions(session.Options{
SharedConfigState: session.SharedConfigEnable,
}))
dynamoDbSvc := dynamodb.New(sess)
var response events.APIGatewayProxyResponse
if httpRequest.RequestContext.HTTP.Method == "OPTIONS" {
response = events.APIGatewayProxyResponse{
StatusCode: http.StatusOK,
}
returnValue, _ := json.Marshal(&response)
return returnValue, nil
}
if strings.Contains(httpRequest.RawPath, "/secrets") {
if httpRequest.RequestContext.HTTP.Method == "GET" {
authHeader := httpRequest.Headers["authorization"]
githubWorkflowSecrets, err := secrets.GetSecrets(httpRequest.QueryStringParameters, authHeader, dynamoDbSvc, false)
if err != nil {
response = events.APIGatewayProxyResponse{
StatusCode: http.StatusInternalServerError,
Body: err.Error(),
}
} else {
output, _ := json.Marshal(githubWorkflowSecrets)
response = events.APIGatewayProxyResponse{
StatusCode: http.StatusOK,
Body: string(output),
}
}
} else if httpRequest.RequestContext.HTTP.Method == "PUT" {
authHeader := httpRequest.Headers["authorization"]
githubWorkflowSecrets, err := secrets.InitSecrets(httpRequest.Body, authHeader, dynamoDbSvc)
if err != nil {
response = events.APIGatewayProxyResponse{
StatusCode: http.StatusInternalServerError,
Body: err.Error(),
}
} else {
output, _ := json.Marshal(githubWorkflowSecrets)
response = events.APIGatewayProxyResponse{
StatusCode: http.StatusOK,
Body: string(output),
}
}
} else if httpRequest.RequestContext.HTTP.Method == "POST" {
err := secrets.SetSecrets(httpRequest.Body, dynamoDbSvc)
if err != nil {
response = events.APIGatewayProxyResponse{
StatusCode: http.StatusInternalServerError,
Body: err.Error(),
}
} else {
response = events.APIGatewayProxyResponse{
StatusCode: http.StatusOK,
}
}
} else if httpRequest.RequestContext.HTTP.Method == "DELETE" {
authHeader := httpRequest.Headers["authorization"]
err := secrets.DeleteSecrets(authHeader, dynamoDbSvc)
if err != nil {
response = events.APIGatewayProxyResponse{
StatusCode: http.StatusInternalServerError,
Body: err.Error(),
}
} else {
response = events.APIGatewayProxyResponse{
StatusCode: http.StatusOK,
}
}
}
}
if strings.Contains(httpRequest.RawPath, "/secure-workflow") {
inputYaml := ""
queryStringParams := httpRequest.QueryStringParameters
// if owner is set, assuming that repo, path are also set
// get the workflow using API
if _, ok := queryStringParams["owner"]; ok {
inputYaml, err = workflow.GetGitHubWorkflowContents(httpRequest.QueryStringParameters)
if err != nil {
fixResponse := &permissions.SecureWorkflowReponse{WorkflowFetchError: true, HasErrors: true}
output, _ := json.Marshal(fixResponse)
response = events.APIGatewayProxyResponse{
StatusCode: http.StatusOK,
Body: string(output),
}
returnValue, _ := json.Marshal(&response)
return returnValue, nil
}
} else {
// if owner is not set, then workflow should be sent in the body
inputYaml = httpRequest.Body
}
fixResponse, err := workflow.SecureWorkflow(httpRequest.QueryStringParameters, inputYaml, dynamoDbSvc)
if err != nil {
response = events.APIGatewayProxyResponse{
StatusCode: http.StatusInternalServerError,
Body: err.Error(),
}
} else {
output, _ := json.Marshal(fixResponse)
response = events.APIGatewayProxyResponse{
StatusCode: http.StatusOK,
Body: string(output),
}
}
}
if strings.Contains(httpRequest.RawPath, "/secure-dockerfile") {
dockerFile := ""
queryStringParams := httpRequest.QueryStringParameters
// if owner is set, assuming that repo, path are also set
// get the dockerfile using API
if _, ok := queryStringParams["owner"]; ok {
dockerFile, err = workflow.GetGitHubWorkflowContents(httpRequest.QueryStringParameters)
if err != nil {
fixResponse := &docker.SecureDockerfileResponse{DockerfileFetchError: true}
output, _ := json.Marshal(fixResponse)
response = events.APIGatewayProxyResponse{
StatusCode: http.StatusOK,
Body: string(output),
}
returnValue, _ := json.Marshal(&response)
return returnValue, nil
}
} else {
// if owner is not set, then dockerfile should be sent in the body
dockerFile = httpRequest.Body
}
fixResponse, err := docker.SecureDockerFile(dockerFile)
if err != nil {
response = events.APIGatewayProxyResponse{
StatusCode: http.StatusInternalServerError,
Body: err.Error(),
}
} else {
output, _ := json.Marshal(fixResponse)
response = events.APIGatewayProxyResponse{
StatusCode: http.StatusOK,
Body: string(output),
}
}
}
if strings.Contains(httpRequest.RawPath, "/update-dependabot-config") {
updateDependabotConfigRequest := ""
updateDependabotConfigRequest = httpRequest.Body
fixResponse, err := dependabot.UpdateDependabotConfig(updateDependabotConfigRequest)
if err != nil {
response = events.APIGatewayProxyResponse{
StatusCode: http.StatusInternalServerError,
Body: err.Error(),
}
} else {
output, _ := json.Marshal(fixResponse)
response = events.APIGatewayProxyResponse{
StatusCode: http.StatusOK,
Body: string(output),
}
}
}
returnValue, _ := json.Marshal(&response)
return returnValue, nil
}
return nil, fmt.Errorf("request was neither APIGatewayV2HTTPRequest nor SQSEvent")
}
func main() {
lambda.StartHandler(Handler{})
}