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package toxiproxy
import (
"bytes"
"encoding/json"
"fmt"
"io"
"net/http"
)
type Proxy struct {
client *Client
Name string `json:"name"`
ListenAddr string `json:"listen"`
TargetAddr string `json:"upstream"`
Enabled bool `json:"enabled"`
}
type Attributes map[string]int
func (p *Proxy) AddToxic(
name string,
toxicType string,
stream string,
toxicity float32,
attributes Attributes,
) (*Toxic, error) {
toxic := &Toxic{
Name: name,
Type: toxicType,
Stream: stream,
Toxicity: toxicity,
Attributes: attributes,
}
var b bytes.Buffer
if err := json.NewEncoder(&b).Encode(&toxic); err != nil {
return nil, fmt.Errorf("failed to json encode toxic: %w", err)
}
body := bytes.NewReader(b.Bytes())
c := p.client
req, err := http.NewRequest("POST", c.endpoint+"/proxies/"+p.Name+"/toxics", body)
if err != nil {
return nil, fmt.Errorf("failed to make post toxic request: %w", err)
}
req.Header.Set("Content-Type", "application/json")
resp, err := c.httpClient.Do(req)
if err != nil {
return nil, fmt.Errorf("failed to http post toxic: %w", err)
}
defer resp.Body.Close()
if resp.StatusCode != 200 {
body, _ := io.ReadAll(resp.Body)
return nil, fmt.Errorf("error creating toxic %s: %s %s", name, resp.Status, body)
}
return toxic, nil
}
func (p *Proxy) Enable() error {
p.Enabled = true
_, err := p.Save()
return err
}
func (p *Proxy) Disable() error {
p.Enabled = false
_, err := p.Save()
return err
}
func (p *Proxy) Save() (*Proxy, error) {
var b bytes.Buffer
if err := json.NewEncoder(&b).Encode(&p); err != nil {
return nil, fmt.Errorf("failed to json encode proxy: %w", err)
}
body := bytes.NewReader(b.Bytes())
c := p.client
req, err := http.NewRequest("POST", c.endpoint+"/proxies/"+p.Name, body)
if err != nil {
return nil, fmt.Errorf("failed to make post proxy request: %w", err)
}
req.Header.Set("Content-Type", "application/json")
resp, err := c.httpClient.Do(req)
if err != nil {
return nil, fmt.Errorf("failed to http post proxy: %w", err)
}
defer resp.Body.Close()
if resp.StatusCode == 404 {
if _, err := body.Seek(0, io.SeekStart); err != nil {
return nil, fmt.Errorf("failed to rewind post body: %w", err)
}
req, err = http.NewRequest("POST", c.endpoint+"/proxies", body)
if err != nil {
return nil, fmt.Errorf("failed to make post proxy request: %w", err)
}
req.Header.Set("Content-Type", "application/json")
resp, err = c.httpClient.Do(req)
if err != nil {
return nil, fmt.Errorf("failed to http post proxy: %w", err)
}
defer resp.Body.Close()
}
if resp.StatusCode != 200 && resp.StatusCode != 201 {
body, _ := io.ReadAll(resp.Body)
return nil, fmt.Errorf("error saving proxy: %s %s", resp.Status, body)
}
return p, nil
}
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