feat: merge conflict resolution, site management, UI fixes

internal/service/notify_webhook.go

@@ -0,0 +1,119 @@
+// Package service — Webhook 通知 Provider。
+package service
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net/http"
+	"strings"
+	"time"
+)
+
+// WebhookProvider 通过自定义 HTTP Webhook 发送通知。
+// 支持自定义 HTTP 方法和请求头。
+type WebhookProvider struct{}
+
+// Send 发送 Webhook 通知。
+func (p *WebhookProvider) Send(ctx context.Context, cfg map[string]string, event NotifyEvent) error {
+	webhookURL := cfg["url"]
+	if webhookURL == "" {
+		return fmt.Errorf("webhook: url is required")
+	}
+
+	method := cfg["method"]
+	if method == "" {
+		method = "POST"
+	}
+	method = strings.ToUpper(method)
+
+	// 构建请求体
+	bodyTemplate := cfg["body_template"]
+	var bodyStr string
+	if bodyTemplate != "" {
+		bodyStr = renderTemplate(bodyTemplate, event)
+	} else {
+		// 默认 JSON 格式
+		bodyStr = fmt.Sprintf(`{"type":"%s","title":"%s","message":"%s","data":{}}`,
+			event.Type, event.Title, event.Message)
+		if len(event.Data) > 0 {
+			var dataParts []string
+			for k, v := range event.Data {
+				dataParts = append(dataParts, fmt.Sprintf(`"%s":%v`, k, v))
+			}
+			bodyStr = fmt.Sprintf(`{"type":"%s","title":"%s","message":"%s","data":{%s}}`,
+				event.Type, event.Title, event.Message, strings.Join(dataParts, ","))
+		}
+	}
+
+	req, err := http.NewRequestWithContext(ctx, method, webhookURL, strings.NewReader(bodyStr))
+	if err != nil {
+		return err
+	}
+
+	req.Header.Set("Content-Type", "application/json")
+
+	// 自定义请求头
+	headersJSON := cfg["headers_json"]
+	if headersJSON != "" {
+		headers := parseHeadersJSON(headersJSON)
+		for k, v := range headers {
+			req.Header.Set(k, v)
+		}
+	}
+
+	client := &http.Client{Timeout: 15 * time.Second}
+	resp, err := client.Do(req)
+	if err != nil {
+		return err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode >= 400 {
+		respBody, _ := io.ReadAll(resp.Body)
+		return fmt.Errorf("webhook error %d: %s", resp.StatusCode, string(respBody))
+	}
+	return nil
+}
+
+// ValidateConfig 验证 Webhook 配置。
+func (p *WebhookProvider) ValidateConfig(cfg map[string]string) error {
+	if cfg["url"] == "" {
+		return fmt.Errorf("webhook: url is required")
+	}
+	return nil
+}
+
+// renderTemplate 简单模板渲染，支持 {{title}}, {{message}}, {{type}} 占位符。
+func renderTemplate(template string, event NotifyEvent) string {
+	result := template
+	result = strings.ReplaceAll(result, "{{title}}", event.Title)
+	result = strings.ReplaceAll(result, "{{message}}", event.Message)
+	result = strings.ReplaceAll(result, "{{type}}", event.Type)
+	return result
+}
+
+// parseHeadersJSON 简单解析 headers JSON（格式: {"key":"value",...}）。
+func parseHeadersJSON(jsonStr string) map[string]string {
+	result := make(map[string]string)
+	jsonStr = strings.TrimSpace(jsonStr)
+	if jsonStr == "" || (jsonStr[0] != '{' && jsonStr[len(jsonStr)-1] != '}') {
+		return result
+	}
+
+	// 简单 key:value 解析
+	inner := jsonStr[1 : len(jsonStr)-1]
+	parts := strings.Split(inner, ",")
+	for _, part := range parts {
+		kv := strings.SplitN(part, ":", 2)
+		if len(kv) != 2 {
+			continue
+		}
+		key := strings.Trim(strings.TrimSpace(kv[0]), `"`)
+		value := strings.Trim(strings.TrimSpace(kv[1]), `"`)
+		if key != "" {
+			result[key] = value
+		}
+	}
+	return result
+}