Initial commit providing the basics

config/config.go

@@ -0,0 +1,28 @@
+package config
+
+import (
+	"context"
+)
+
+// Endpoint to listen for requests and what to execute
+type Endpoint struct {
+	Command                string   `json:"command"`
+	Arguments              []string `json:"arguments"`
+	HTTPMethod             string   `json:"http_method"`
+	AllowExternalArguments bool     `json:"allow_external_arguments"`
+	AllowStdin             bool     `json:"allow_stdin"`
+	DiscardStderr          bool     `json:"discard_stderr"`
+	DiscardStdout          bool     `json:"discard_stdout"`
+}
+
+// Config information for httpwrap
+type Config struct {
+	Endpoints     map[string]*Endpoint `json:"endpoints"`
+	ListenAddress string               `json:"listen_address"`
+	ListenPort    uint16               `json:"listen_port"`
+}
+
+// Source that can get a Config instance
+type Source interface {
+	Config(context.Context) (*Config, error)
+}

config/json_file.go

@@ -0,0 +1,37 @@
+package config
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"os"
+)
+
+// JSONFileSource gets the config from a JSON file
+type JSONFileSource struct {
+	filePath string
+}
+
+// NewJSONFileSource creates a new JSONFileSource instance for the given path
+func NewJSONFileSource(filePath string) *JSONFileSource {
+	return &JSONFileSource{
+		filePath: filePath,
+	}
+}
+
+// Config gets the config from this file source
+func (jfs *JSONFileSource) Config(ctx context.Context) (*Config, error) {
+	config := &Config{}
+
+	data, err := os.ReadFile(jfs.filePath)
+	if err != nil {
+		return nil, fmt.Errorf("failed to read JSON config file at %s: %w", jfs.filePath, err)
+	}
+
+	err = json.Unmarshal(data, config)
+	if err != nil {
+		return nil, fmt.Errorf("failed to decode JSON config file at %s: %w", jfs.filePath, err)
+	}
+
+	return config, nil
+}