initial commit

api/client.go

@@ -0,0 +1,61 @@
+package api
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net/http"
+	"net/http/cookiejar"
+	"net/url"
+	"strings"
+	"time"
+
+	"github.com/carlmjohnson/requests"
+	"golang.org/x/net/publicsuffix"
+)
+
+type Client struct {
+	baseURL string
+	inner   http.Client
+}
+
+func NewClient(baseURL, username, password string) (*Client, error) {
+	jar, err := cookiejar.New(&cookiejar.Options{PublicSuffixList: publicsuffix.List})
+	if err != nil {
+		return nil, err
+	}
+	c := Client{
+		baseURL: baseURL,
+		inner: http.Client{
+			Timeout: time.Second * 10,
+			Jar:     jar,
+		},
+	}
+	if err := c.login(username, password); err != nil {
+		return nil, err
+	}
+	return &c, nil
+}
+
+func (c *Client) reqBuilder() *requests.Builder {
+	return requests.
+		URL(c.baseURL).
+		Client(&c.inner).
+		AddValidator(requests.ValidatorHandler(requests.DefaultValidator, requests.ResponseHandler(func(r *http.Response) error {
+			var buf strings.Builder
+			_, _ = io.Copy(&buf, r.Body)
+			return fmt.Errorf("response body: %v", buf.String())
+		})))
+}
+
+func (c *Client) login(username, password string) error {
+	err := c.reqBuilder().
+		Path("/api/v2/auth/login").
+		Header("Referer", c.baseURL).
+		BodyForm(url.Values{"username": []string{username}, "password": []string{password}}).
+		Fetch(context.TODO())
+	if err != nil {
+		return fmt.Errorf("login: %w", err)
+	}
+	return nil
+}