Files
adguard-dns-tools/client.go
moritz 4405744f56
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Add client.go
2025-05-07 15:31:57 +02:00

104 lines
2.3 KiB
Go

package main
import (
"bytes"
"encoding/json"
"fmt"
"io"
"net/http"
"os"
)
type AdGuardClient struct {
BaseURL string
Username string
Password string
Client *http.Client
}
func NewAdGuardClient() (*AdGuardClient, error) {
baseURL := os.Getenv("ADGUARD_URL")
user := os.Getenv("ADGUARD_USER")
pass := os.Getenv("ADGUARD_PASSWORD")
if baseURL == "" || user == "" || pass == "" {
return nil, fmt.Errorf("fehlende Umgebungsvariablen")
}
return &AdGuardClient{
BaseURL: baseURL,
Username: user,
Password: pass,
Client: &http.Client{},
}, nil
}
func (c *AdGuardClient) Login() error {
data := map[string]string{"name": c.Username, "password": c.Password}
return c.post("/control/login", data, nil)
}
func (c *AdGuardClient) GetRewrites() ([]Rewrite, error) {
resp, err := c.Client.Get(c.BaseURL + "/control/rewrite/list")
if err != nil {
return nil, err
}
defer resp.Body.Close()
var list []Rewrite
if err := json.NewDecoder(resp.Body).Decode(&list); err != nil {
return nil, err
}
return list, nil
}
func (c *AdGuardClient) AddRewrite(r Rewrite) error {
return c.post("/control/rewrite/add", r, nil)
}
func (c *AdGuardClient) DeleteRewrite(r Rewrite) error {
return c.post("/control/rewrite/delete", r, nil)
}
func (c *AdGuardClient) UpdateRewrite(oldR, newR Rewrite) error {
payload := map[string]Rewrite{"target": oldR, "update": newR}
return c.put("/control/rewrite/update", payload, nil)
}
func (c *AdGuardClient) post(path string, body any, result any) error {
return c.doRequest("POST", path, body, result)
}
func (c *AdGuardClient) put(path string, body any, result any) error {
return c.doRequest("PUT", path, body, result)
}
func (c *AdGuardClient) doRequest(method, path string, body any, result any) error {
b, err := json.Marshal(body)
if err != nil {
return err
}
req, err := http.NewRequest(method, c.BaseURL+path, bytes.NewReader(b))
if err != nil {
return err
}
req.Header.Set("Content-Type", "application/json")
resp, err := c.Client.Do(req)
if err != nil {
return err
}
defer resp.Body.Close()
if resp.StatusCode >= 400 {
body, _ := io.ReadAll(resp.Body)
return fmt.Errorf("Fehler %d: %s", resp.StatusCode, string(body))
}
if result != nil {
return json.NewDecoder(resp.Body).Decode(result)
}
return nil
}