Add verification service, service factory, and cloud provider control…

…lers

Implement certificate generation and PDF generator

Dockerfile

@@ -1,24 +1,37 @@
-FROM golang:1.19.4-alpine3.17 as builder
 
-RUN apk update && apk add git make bash
+# Start from the official Golang image to build the binary.
+FROM golang:alpine as builder
 
+# Enable Go modules.
+ENV GO111MODULE=on
+
+# Set the working directory outside $GOPATH to enable the support for modules.
 WORKDIR /app
 
-COPY . ./
+# Copy go mod and sum files to download dependencies.
+COPY go.mod go.sum ./
+
+# Download all dependencies.
+RUN go mod download
 
-# Do dep installs outside, due to private git modules
-# RUN make dep
+# Copy the source from the current directory to the working directory inside the container.
+COPY . .
 
-RUN make build
+# Build the Go app.
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o main .
 
+# Start a new stage from scratch for a smaller final image.
 FROM alpine:latest
 
-WORKDIR /app
+RUN apk --no-cache add ca-certificates
+
+WORKDIR /root/
 
-COPY --from=builder /app/main /app/
-COPY --from=builder /app/public /app/public
-COPY --from=builder /app/dist /app/dist
+# Copy the pre-built binary file from the previous stage.
+COPY --from=builder /app/main .
 
-EXPOSE 4001
+# Command to run the executable.
+CMD ["./main"]
 
-CMD [ "/app/main" ]
+# Expose port 8080 to the outside world.
+EXPOSE 8080

api/handlers/certificate_controller.go

@@ -0,0 +1,32 @@
+package handlers
+
+import (
+	"net/http"
+
+	"github.com/labstack/echo/v4"
+	// Import your service packages
+)
+
+// CertificateController handles certificate related requests
+type CertificateController struct {
+	// fields for services
+}
+
+// NewCertificateController creates a new instance
+func NewCertificateController() *CertificateController {
+	return &CertificateController{
+		// Initialize fields
+	}
+}
+
+// GenerateCertificate handles requests to generate a destruction certificate
+func (ctrl *CertificateController) GenerateCertificate(c echo.Context) error {
+	// certificate generation logic
+	return c.JSON(http.StatusOK, certificate)
+}
+
+// GetCertificate retrieves a specific destruction certificate
+func (ctrl *CertificateController) GetCertificate(c echo.Context) error {
+	// logic to retrieve a certificate
+	return c.JSON(http.StatusOK, certificate)
+}

api/handlers/cloud_providers_controller.go

@@ -0,0 +1,32 @@
+package handlers
+
+import (
+	"net/http"
+
+	"github.com/labstack/echo/v4"
+	// Import your service packages
+)
+
+// CloudProvidersController handles requests related to cloud providers
+type CloudProvidersController struct {
+	// fields like service instances
+}
+
+// NewCloudProvidersController creates a new controller instance
+func NewCloudProvidersController() *CloudProvidersController {
+	return &CloudProvidersController{
+		// fields
+	}
+}
+
+// ListProviders handles GET requests to list cloud providers
+func (ctrl *CloudProvidersController) ListProviders(c echo.Context) error {
+	// logic to list cloud providers
+	return c.JSON(http.StatusOK, providers)
+}
+
+// InitiateDestruction handles POST requests to initiate data destruction
+func (ctrl *CloudProvidersController) InitiateDestruction(c echo.Context) error {
+	// logic to start data destruction
+	return c.JSON(http.StatusOK, response)
+}

api/handlers/verification_controller.go

@@ -0,0 +1,26 @@
+package handlers
+
+import (
+	"net/http"
+
+	"github.com/labstack/echo/v4"
+	// service packages
+)
+
+// VerificationController handles requests related to verification of data destruction
+type VerificationController struct {
+	// fields for services
+}
+
+// NewVerificationController creates a new controller instance
+func NewVerificationController() *VerificationController {
+	return &VerificationController{
+		// Initialize fields
+	}
+}
+
+// VerifyDestruction handles requests to verify data destruction
+func (ctrl *VerificationController) VerifyDestruction(c echo.Context) error {
+	//  verification logic
+	return c.JSON(http.StatusOK, verificationResult)
+}

api/services/aws_verification_service.go

@@ -0,0 +1,21 @@
+package services
+
+// Import AWS SDK
+
+// AWSVerificationService is an implementation of VerificationService for AWS
+type AWSVerificationService struct {
+	// Add necessary fields, like AWS client
+}
+
+func NewAWSVerificationService( /* params */ ) *AWSVerificationService {
+	return &AWSVerificationService{
+		// Initialize fields
+	}
+}
+
+// VerifyDestruction checks if data has been completely destroyed on AWS
+func (svc *AWSVerificationService) VerifyDestruction(cloudProvider, identifier string) (bool, error) {
+	// Implement logic to verify destruction on AWS
+	// For example, check if an S3 object still exists
+	return false, nil
+}

api/services/azure_verification_service.go

@@ -0,0 +1,21 @@
+package services
+
+// Import Azure SDK
+
+// AzureVerificationService is an implementation of VerificationService for Azure
+type AzureVerificationService struct {
+	// necessary fields, like Azure client
+}
+
+func NewAzureVerificationService( /* params */ ) *AzureVerificationService {
+	return &AzureVerificationService{
+		// Initialize fields
+	}
+}
+
+// VerifyDestruction checks if data has been completely destroyed on Azure
+func (svc *AzureVerificationService) VerifyDestruction(cloudProvider, identifier string) (bool, error) {
+	// logic to verify destruction on Azure
+
+	return false, nil
+}

api/services/gcp_verification_service.go

@@ -0,0 +1,21 @@
+package services
+
+// Import GCP SDK
+
+// GCPVerificationService is an implementation of VerificationService for GCP
+type GCPVerificationService struct {
+	// necessary fields, like GCP client
+}
+
+func NewGCPVerificationService( /* params */ ) *GCPVerificationService {
+	return &GCPVerificationService{
+		// Initialize fields
+	}
+}
+
+// VerifyDestruction checks if data has been completely destroyed on GCP
+func (svc *GCPVerificationService) VerifyDestruction(cloudProvider, identifier string) (bool, error) {
+	//  logic to verify destruction on GCP
+
+	return false, nil
+}

api/services/service_factory.go

@@ -0,0 +1,17 @@
+package services
+
+import "fmt"
+
+// GetVerificationService returns the appropriate verification service for a given cloud provider
+func GetVerificationService(cloudProvider string) (VerificationService, error) {
+	switch cloudProvider {
+	case "aws":
+		return NewAWSVerificationService( /* params */ ), nil
+	case "gcp":
+		return NewGCPVerificationService( /* params */ ), nil
+	case "azure":
+		return NewAzureVerificationService( /* params */ ), nil
+	default:
+		return nil, fmt.Errorf("unsupported cloud provider: %s", cloudProvider)
+	}
+}

api/services/verification_service.go

@@ -0,0 +1,6 @@
+package services
+
+// VerificationService defines the interface for a service that verifies data destruction
+type VerificationService interface {
+	VerifyDestruction(cloudProvider, identifier string) (bool, error)
+}

certificates/generator.go

@@ -0,0 +1,38 @@
+package certificates
+
+import (
+	"bytes"
+	"time"
+	// Import packages for PDF or document generation
+)
+
+// DestructionCertificate contains the details for the data destruction certificate
+type DestructionCertificate struct {
+	CloudProvider  string
+	Service        string
+	DataType       string
+	DestroyedAt    time.Time
+	AdditionalInfo map[string]string
+}
+
+// CertificateGenerator defines the interface for certificate generation
+type CertificateGenerator interface {
+	Generate(certificate DestructionCertificate) ([]byte, error)
+}
+
+// PDFGenerator implements CertificateGenerator for PDF certificates
+type PDFGenerator struct {
+}
+
+// NewPDFGenerator creates a new instance of PDFGenerator
+func NewPDFGenerator() *PDFGenerator {
+	return &PDFGenerator{}
+}
+
+// Generate creates a PDF certificate from the given DestructionCertificate details
+func (g *PDFGenerator) Generate(certificate DestructionCertificate) ([]byte, error) {
+	var buf bytes.Buffer
+	// Implement PDF generation logic, populating the buffer with the PDF data
+
+	return buf.Bytes(), nil
+}

docker-compose.yaml

@@ -1,12 +1,20 @@
-version: '3.7'
+
+version: '3.8'
+
 services:
-  postgres:
-    image: postgres:13-alpine
-    container_name: gotes-mx-pg
-    restart: always
-    environment:
-      - POSTGRES_HOST_AUTH_METHOD=trust
+  app:
+    build: .
     ports:
-      - '5757:5432'
+      - "8080:8080"
+    volumes:
+      - .:/app
+      - /app/node_modules
+    environment:
+      - GO_ENV=production
+    command: ./main
+  frontend:
+    image: nginx:alpine
     volumes:
-      - './postgres/data:/var/lib/postgresql/data'
+      - ./dist:/usr/share/nginx/html:ro
+    ports:
+      - "80:80"

utils/errs/errs.go

@@ -6,46 +6,55 @@ import (
 	"strings"
 )
 
-// Wrap is wrapper that includes error trace in errors
-func Wrap(any interface{}, a ...interface{}) error {
-	if any != nil {
-		err := error(nil)
+// StackTraceError includes the original error and its stack trace
+type StackTraceError struct {
+	Err        error
+	StackTrace string
+}
 
-		switch any := any.(type) {
-		case string:
-			err = fmt.Errorf(any, a...)
-		case error:
-			err = fmt.Errorf(any.Error(), a...)
-		default:
-			err = fmt.Errorf("%v", err)
-		}
+// Error implements the error interface for StackTraceError
+func (e StackTraceError) Error() string {
+	return fmt.Sprintf("%s: %v", e.StackTrace, e.Err)
+}
 
-		_, fn, line, _ := runtime.Caller(1)
+// Wrap enriches the given error with a stack trace. It can take either an error or a string.
+func Wrap(any interface{}, a ...interface{}) error {
+	if any == nil {
+		return nil
+	}
 
-		return fmt.Errorf("%s:%d %v", fn, line, err)
+	var err error
+	switch v := any.(type) {
+	case string:
+		err = fmt.Errorf(v, a...)
+	case error:
+		err = v
+	default:
+		err = fmt.Errorf("%v", v)
 	}
 
-	return nil
+	_, fn, line, _ := runtime.Caller(1)
+	stackTrace := fmt.Sprintf("%s:%d", fn, line)
+
+	return StackTraceError{Err: err, StackTrace: stackTrace}
 }
 
-// Errorf is wrapper to create new error along with error trace
-func Errorf(format string, a ...any) error {
+// Errorf creates a new error with a stack trace.
+func Errorf(format string, a ...interface{}) error {
 	err := fmt.Errorf(format, a...)
 	_, fn, line, _ := runtime.Caller(1)
 
-	return fmt.Errorf("%s:%d %v", fn, line, err)
+	return StackTraceError{Err: err, StackTrace: fmt.Sprintf("%s:%d", fn, line)}
 }
 
-// ParseError is a method to parse error code and error message from a single error trace.
-// Please make sure that the error have following format:
-// <<ErrorCode>>: <<ErrorMessage>>
-// Example:
-// PaymentUnauthorized: payment cannot be authorized
+// ParseError extracts the error code and message, assuming a specific format.
 func ParseError(err error) (code, message string) {
-	splits := strings.Split(err.Error(), ":")
+	splits := strings.SplitN(err.Error(), ": ", 2)
 	if len(splits) != 2 {
 		return "GeneralError", err.Error()
 	}
 
 	return strings.TrimSpace(splits[0]), strings.TrimSpace(splits[1])
 }
+
+// Attach additional helper functions or custom error types as needed.