🔧 chore: 初始化番茄小说 API 项目结构

新增项目基础框架，包含核心 API 实现、算法模块、HTTP 处理器等完整功能模块

internal/fqapi/gorgon_utils.go

@@ -0,0 +1,117 @@
+package fqapi
+
+import (
+	"crypto/md5"
+	"encoding/hex"
+	"fanqie/internal/algos"
+	"fanqie/internal/common"
+)
+
+// CreateMD5 创建MD5哈希
+func CreateMD5(s string) string {
+	hasher := md5.New()
+	hasher.Write([]byte(s))
+	return hex.EncodeToString(hasher.Sum(nil))
+}
+
+// GorgonRequest Gorgon请求（使用签名切换器）
+func GorgonRequest(urlStr string, options map[string]interface{}) (*common.ClientResponse, error) {
+	headers, ok := options["headers"].(map[string]string)
+	if !ok {
+		headers = make(map[string]string)
+		options["headers"] = headers
+	}
+
+	dataMD5 := ""
+	if body, ok := options["body"].(string); ok && body != "" {
+		dataMD5 = CreateMD5(body)
+	} else if body, ok := options["body"].([]byte); ok && len(body) > 0 {
+		dataMD5 = CreateMD5(string(body))
+	}
+
+	if dataMD5 != "" {
+		headers["x-ss-stub"] = dataMD5
+	}
+
+	// 使用签名切换器（sign2 或 sign4）生成签名
+	signedHeaders := algos.GlobalSignatureSwitcher.Sign(urlStr, headers)
+
+	// 更新headers
+	for k, v := range signedHeaders {
+		headers[k] = v
+	}
+
+	// 调用实际的HTTP请求
+	client := common.NewHTTPClient()
+	return client.Request(urlStr, options)
+}
+
+// GorgonRequestSync Gorgon同步请求（使用签名切换器）
+func GorgonRequestSync(urlStr string, options map[string]interface{}) (*common.ClientResponse, error) {
+	headers, ok := options["headers"].(map[string]string)
+	if !ok {
+		headers = make(map[string]string)
+		options["headers"] = headers
+	}
+
+	dataMD5 := ""
+	if body, ok := options["body"].(string); ok && body != "" {
+		dataMD5 = CreateMD5(body)
+	} else if body, ok := options["body"].([]byte); ok && len(body) > 0 {
+		dataMD5 = CreateMD5(string(body))
+	}
+
+	if dataMD5 != "" {
+		headers["x-ss-stub"] = dataMD5
+	}
+
+	// 使用签名切换器（sign2 或 sign4）生成签名
+	signedHeaders := algos.GlobalSignatureSwitcher.Sign(urlStr, headers)
+
+	// 删除x-ss-stub（如果存在）
+	if _, exists := signedHeaders["x-ss-stub"]; exists {
+		delete(signedHeaders, "x-ss-stub")
+	}
+
+	// 更新headers
+	for k, v := range signedHeaders {
+		headers[k] = v
+	}
+
+	// 调用实际的HTTP请求
+	client := common.NewHTTPClient()
+	return client.Request(urlStr, options)
+}
+
+// ContentRequest Content请求（硬编码使用Sign2，不受配置影响）
+func ContentRequest(urlStr string, options map[string]interface{}) (*common.ClientResponse, error) {
+	headers, ok := options["headers"].(map[string]string)
+	if !ok {
+		headers = make(map[string]string)
+		options["headers"] = headers
+	}
+
+	dataMD5 := ""
+	if body, ok := options["body"].(string); ok && body != "" {
+		dataMD5 = CreateMD5(body)
+	} else if body, ok := options["body"].([]byte); ok && len(body) > 0 {
+		dataMD5 = CreateMD5(string(body))
+	}
+
+	if dataMD5 != "" {
+		headers["x-ss-stub"] = dataMD5
+	}
+
+	// 硬编码使用 Sign2（不受配置影响）
+	signedHeaders := algos.Sign2Wrapper(urlStr, headers)
+
+	// 更新headers
+	for k, v := range signedHeaders {
+		headers[k] = v
+	}
+
+	// 调用实际的HTTP请求
+	client := common.NewHTTPClient()
+	return client.Request(urlStr, options)
+}
+