initial version

1 files changed, 88 insertions, 0 deletions

diff --git a/yggdrasil/realserver.go b/yggdrasil/realserver.go
new file mode 100644
index 0000000..86f4887
--- /dev/null
+++ b/yggdrasil/realserver.go
@@ -0,0 +1,88 @@
+package yggdrasil
+
+import (
+	"encoding/json"
+	"fmt"
+	"github.com/imroc/req"
+	"github.com/rs/zerolog/log"
+	"net/url"
+	"time"
+)
+
+type realServer struct {
+	req       *req.Req
+	apiPrefix string
+	name      string
+}
+
+func (r realServer) Name() string {
+	return r.name
+}
+
+func (r realServer) HasJoined(username string, serverID string) (*HasJoinedResponse, error) {
+	u, err := url.Parse(r.apiPrefix + "/session/minecraft/hasJoined")
+	if err != nil {
+		return nil, fmt.Errorf("url parse: %w", err)
+	}
+	q := u.Query()
+	q.Set("username", username)
+	q.Set("serverId", serverID)
+	u.RawQuery = q.Encode()
+	url2 := u.String()
+	log.Debug().Str("url", url2).Msg("hasJoined request")
+	resp, err := r.req.Get(url2)
+	if err != nil {
+		return nil, fmt.Errorf("http request: %w", err)
+	}
+	respBytes := resp.Bytes()
+	var resp2 HasJoinedResponse
+	// decode JSON only if HTTP status code is OK
+	if resp.Response().StatusCode == 200 {
+		err := json.Unmarshal(respBytes, &resp2)
+		if err != nil {
+			log.Error().
+				Str("body", string(respBytes)).
+				Err(err).
+				Msg("unmarshal response body JSON failed")
+		}
+	}
+	resp2.StatusCode = resp.Response().StatusCode
+	resp2.RawBody = respBytes
+	resp2.ServerName = r.name
+	log.Debug().
+		Int("statusCode", resp2.StatusCode).
+		Str("rawBody", string(respBytes)).
+		Msg("hasJoined response")
+	return &resp2, nil
+}
+
+func NewServer(apiPrefix string, opt ...NewServerOptions) (Server, error) {
+	name := "<unnamed server>"
+	r := req.New()
+	if len(opt) > 0 {
+		if p := opt[0].Proxy; p != "" {
+			err := r.SetProxyUrl(p)
+			if err != nil {
+				return nil, fmt.Errorf("set proxy url: %w", err)
+			}
+		}
+		if t := opt[0].Timeout; t > 0 {
+			r.SetTimeout(t)
+		}
+		if n := opt[0].Name; n != "" {
+			name = n
+		}
+	}
+	return realServer{
+		req:       r,
+		apiPrefix: apiPrefix,
+		name:      name,
+	}, nil
+}
+
+type NewServerOptions struct {
+	Name  string
+	Proxy string
+	// Timeout is HTTP API request timeout
+	Timeout time.Duration
+}