feat: add usenet support (#543)

* feat(autobrr): implement usenet support

* feat(sonarr): implement usenet support

* feat(radarr): implement usenet support

* feat(announce): implement usenet support

* announce: cast a line

* feat(release): prevent unknown protocol transfer

* release: lines for days.

* feat: add newznab and sabnzbd support

* feat: add category to sabnzbd

* feat(newznab): map categories

* feat(newznab): map categories

---------

Co-authored-by: ze0s <43699394+zze0s@users.noreply.github.com>
Co-authored-by: ze0s <ze0s@riseup.net>

pkg/sabnzbd/sabnzbd.go

@@ -0,0 +1,173 @@
+package sabnzbd
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"io"
+	"log"
+	"net/http"
+	"net/url"
+	"time"
+)
+
+type Client struct {
+	addr   string
+	apiKey string
+
+	basicUser string
+	basicPass string
+
+	log *log.Logger
+
+	Http *http.Client
+}
+
+type Options struct {
+	Addr   string
+	ApiKey string
+
+	BasicUser string
+	BasicPass string
+
+	Log *log.Logger
+}
+
+func New(opts Options) *Client {
+	c := &Client{
+		addr:      opts.Addr,
+		apiKey:    opts.ApiKey,
+		basicUser: opts.BasicUser,
+		basicPass: opts.BasicPass,
+		log:       log.New(io.Discard, "", log.LstdFlags),
+		Http: &http.Client{
+			Timeout: time.Second * 60,
+		},
+	}
+
+	if opts.Log != nil {
+		c.log = opts.Log
+	}
+
+	return c
+}
+
+func (c *Client) AddFromUrl(ctx context.Context, r AddNzbRequest) (*AddFileResponse, error) {
+	v := url.Values{}
+	v.Set("mode", "addurl")
+	v.Set("name", r.Url)
+	v.Set("output", "json")
+	v.Set("apikey", c.apiKey)
+	v.Set("cat", "*")
+
+	if r.Category != "" {
+		v.Set("cat", r.Category)
+	}
+
+	addr, err := url.JoinPath(c.addr, "/api")
+	if err != nil {
+		return nil, err
+	}
+
+	u, err := url.Parse(addr)
+	if err != nil {
+		return nil, err
+	}
+
+	u.RawQuery = v.Encode()
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, u.String(), nil)
+	if err != nil {
+		return nil, err
+	}
+
+	if c.basicUser != "" && c.basicPass != "" {
+		req.SetBasicAuth(c.basicUser, c.basicPass)
+	}
+
+	res, err := c.Http.Do(req)
+	if err != nil {
+		return nil, err
+	}
+
+	defer res.Body.Close()
+
+	body, err := io.ReadAll(res.Body)
+	if err != nil {
+		return nil, err
+	}
+
+	fmt.Print(body)
+
+	var data AddFileResponse
+	if err := json.Unmarshal(body, &data); err != nil {
+		return nil, err
+	}
+
+	return &data, nil
+}
+
+func (c *Client) Version(ctx context.Context) (*VersionResponse, error) {
+	v := url.Values{}
+	v.Set("mode", "version")
+	v.Set("output", "json")
+	v.Set("apikey", c.apiKey)
+
+	addr, err := url.JoinPath(c.addr, "/api")
+	if err != nil {
+		return nil, err
+	}
+
+	u, err := url.Parse(addr)
+	if err != nil {
+		return nil, err
+	}
+
+	u.RawQuery = v.Encode()
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, u.String(), nil)
+	if err != nil {
+		return nil, err
+	}
+
+	if c.basicUser != "" && c.basicPass != "" {
+		req.SetBasicAuth(c.basicUser, c.basicPass)
+	}
+
+	res, err := c.Http.Do(req)
+	if err != nil {
+		return nil, err
+	}
+
+	defer res.Body.Close()
+
+	body, err := io.ReadAll(res.Body)
+	if err != nil {
+		return nil, err
+	}
+
+	var data VersionResponse
+	if err := json.Unmarshal(body, &data); err != nil {
+		return nil, err
+	}
+
+	return &data, nil
+}
+
+type VersionResponse struct {
+	Version string `json:"version"`
+}
+
+type AddFileResponse struct {
+	NzoIDs []string `json:"nzo_ids"`
+	ApiError
+}
+
+type ApiError struct {
+	ErrorMsg string `json:"error,omitempty"`
+}
+
+type AddNzbRequest struct {
+	Url      string
+	Category string
+}