mirror of
https://github.com/farion1231/cc-switch.git
synced 2026-07-25 13:45:03 +08:00
Security fixes javascript executor and usage script (#151)
* dependencies: url * fix: comprehensive security improvements for usage script execution 🛡️ Security Fixes: - Implement robust SSRF protection with same-origin URL validation - Add precise IP address validation for IPv4/IPv6 private networks - Fix port comparison to handle default ports correctly (443/80) - Remove hardcoded domain whitelist, support custom domains flexibly - Add comprehensive input validation and hostname security checks 🔧 Technical Improvements: - Replace string-based IP checks with proper IpAddr parsing - Use port_or_known_default() for accurate port validation - Add comprehensive unit tests covering edge cases - Implement CIDR-compliant private IP detection (RFC1918) - Fix IPv6 address validation to prevent false positives 📊 Fixed Issues: - Prevent access to private IP addresses while allowing public services - Support Cloudflare (172.67.x.x) and other public 172.x.x.x ranges - Fix port matching between explicit (e.g., :443) and implicit (default) ports - Resolve IPv6 false positives for addresses containing ::1 substrings - Maintain backward compatibility with existing script usage patterns ✅ Testing: - Add comprehensive test suite for IP validation (IPv4/IPv6) - Add port comparison tests for various scenarios - Add edge case tests for CIDR boundaries - All tests passing, ensuring no regressions 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com> * fix: add is_loopback_host for proper localhost validation * fix: use Database::memory() in tests --------- Co-authored-by: Claude <noreply@anthropic.com>
This commit is contained in:
@@ -206,7 +206,7 @@ mod tests {
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#[tokio::test]
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async fn test_provider_router_creation() {
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let db = Arc::new(Database::new_in_memory().unwrap());
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let db = Arc::new(Database::memory().unwrap());
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let router = ProviderRouter::new(db);
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// 测试创建熔断器
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+464
-18
@@ -3,6 +3,7 @@ use rquickjs::{Context, Function, Runtime};
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use serde_json::Value;
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use std::collections::HashMap;
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use std::time::Duration;
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use url::{Host, Url};
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use crate::error::AppError;
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@@ -15,20 +16,14 @@ pub async fn execute_usage_script(
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access_token: Option<&str>,
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user_id: Option<&str>,
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) -> Result<Value, AppError> {
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// 1. 替换变量
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let mut replaced = script_code
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.replace("{{apiKey}}", api_key)
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.replace("{{baseUrl}}", base_url);
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// 1. 替换模板变量,避免泄露敏感信息
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let script_with_vars =
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build_script_with_vars(script_code, api_key, base_url, access_token, user_id);
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// 替换 accessToken 和 userId
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if let Some(token) = access_token {
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replaced = replaced.replace("{{accessToken}}", token);
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}
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if let Some(uid) = user_id {
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replaced = replaced.replace("{{userId}}", uid);
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}
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// 2. 验证 base_url 的安全性
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validate_base_url(base_url)?;
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// 2. 在独立作用域中提取 request 配置(确保 Runtime/Context 在 await 前释放)
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// 3. 在独立作用域中提取 request 配置(确保 Runtime/Context 在 await 前释放)
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let request_config = {
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let runtime = Runtime::new().map_err(|e| {
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AppError::localized(
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@@ -47,7 +42,7 @@ pub async fn execute_usage_script(
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context.with(|ctx| {
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// 执行用户代码,获取配置对象
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let config: rquickjs::Object = ctx.eval(replaced.clone()).map_err(|e| {
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let config: rquickjs::Object = ctx.eval(script_with_vars.clone()).map_err(|e| {
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AppError::localized(
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"usage_script.config_parse_failed",
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format!("解析配置失败: {e}"),
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@@ -94,7 +89,7 @@ pub async fn execute_usage_script(
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})?
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}; // Runtime 和 Context 在这里被 drop
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// 3. 解析 request 配置
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// 4. 解析 request 配置
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let request: RequestConfig = serde_json::from_str(&request_config).map_err(|e| {
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AppError::localized(
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"usage_script.request_format_invalid",
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@@ -103,10 +98,13 @@ pub async fn execute_usage_script(
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)
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})?;
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// 4. 发送 HTTP 请求
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// 5. 验证请求 URL 是否安全(防止 SSRF)
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validate_request_url(&request.url, base_url)?;
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// 6. 发送 HTTP 请求
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let response_data = send_http_request(&request, timeout_secs).await?;
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// 5. 在独立作用域中执行 extractor(确保 Runtime/Context 在函数结束前释放)
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// 7. 在独立作用域中执行 extractor(确保 Runtime/Context 在函数结束前释放)
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let result: Value = {
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let runtime = Runtime::new().map_err(|e| {
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AppError::localized(
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@@ -125,7 +123,7 @@ pub async fn execute_usage_script(
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context.with(|ctx| {
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// 重新 eval 获取配置对象
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let config: rquickjs::Object = ctx.eval(replaced.clone()).map_err(|e| {
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let config: rquickjs::Object = ctx.eval(script_with_vars.clone()).map_err(|e| {
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AppError::localized(
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"usage_script.config_reparse_failed",
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format!("重新解析配置失败: {e}"),
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@@ -198,7 +196,7 @@ pub async fn execute_usage_script(
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})?
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}; // Runtime 和 Context 在这里被 drop
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// 6. 验证返回值格式
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// 8. 验证返回值格式
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validate_result(&result)?;
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Ok(result)
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@@ -394,3 +392,451 @@ fn validate_single_usage(result: &Value) -> Result<(), AppError> {
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Ok(())
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}
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/// 构建替换变量后的脚本,保持与旧版脚本的兼容性
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fn build_script_with_vars(
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script_code: &str,
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api_key: &str,
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base_url: &str,
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access_token: Option<&str>,
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user_id: Option<&str>,
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) -> String {
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let mut replaced = script_code
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.replace("{{apiKey}}", api_key)
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.replace("{{baseUrl}}", base_url);
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if let Some(token) = access_token {
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replaced = replaced.replace("{{accessToken}}", token);
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}
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if let Some(uid) = user_id {
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replaced = replaced.replace("{{userId}}", uid);
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}
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replaced
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}
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/// 验证 base_url 的基本安全性
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fn validate_base_url(base_url: &str) -> Result<(), AppError> {
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if base_url.is_empty() {
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return Err(AppError::localized(
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"usage_script.base_url_empty",
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"base_url 不能为空",
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"base_url cannot be empty",
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));
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}
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// 解析 URL
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let parsed_url = Url::parse(base_url).map_err(|e| {
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AppError::localized(
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"usage_script.base_url_invalid",
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format!("无效的 base_url: {e}"),
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format!("Invalid base_url: {e}"),
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)
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})?;
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let is_loopback = is_loopback_host(&parsed_url);
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// 必须是 HTTPS(允许 localhost 用于开发)
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if parsed_url.scheme() != "https" && !is_loopback {
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return Err(AppError::localized(
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"usage_script.base_url_https_required",
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"base_url 必须使用 HTTPS 协议(localhost 除外)",
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"base_url must use HTTPS (localhost allowed)",
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));
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}
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// 检查主机名格式有效性
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let hostname = parsed_url.host_str().ok_or_else(|| {
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AppError::localized(
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"usage_script.base_url_hostname_missing",
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"base_url 必须包含有效的主机名",
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"base_url must include a valid hostname",
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)
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})?;
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// 基本的主机名格式检查
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if hostname.is_empty() {
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return Err(AppError::localized(
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"usage_script.base_url_hostname_empty",
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"base_url 主机名不能为空",
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"base_url hostname cannot be empty",
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));
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}
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// 检查是否为明显的私有IP(但在 base_url 阶段不过于严格,主要在 request_url 阶段检查)
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if is_suspicious_hostname(hostname) {
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return Err(AppError::localized(
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"usage_script.base_url_suspicious",
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"base_url 包含可疑的主机名",
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"base_url contains a suspicious hostname",
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));
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}
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Ok(())
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}
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/// 验证请求 URL 是否安全(防止 SSRF)
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fn validate_request_url(request_url: &str, base_url: &str) -> Result<(), AppError> {
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// 解析请求 URL
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let parsed_request = Url::parse(request_url).map_err(|e| {
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AppError::localized(
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"usage_script.request_url_invalid",
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format!("无效的请求 URL: {e}"),
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format!("Invalid request URL: {e}"),
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)
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})?;
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// 解析 base URL
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let parsed_base = Url::parse(base_url).map_err(|e| {
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AppError::localized(
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"usage_script.base_url_invalid",
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format!("无效的 base_url: {e}"),
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format!("Invalid base_url: {e}"),
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)
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})?;
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let is_request_loopback = is_loopback_host(&parsed_request);
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// 必须使用 HTTPS(允许 localhost 用于开发)
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if parsed_request.scheme() != "https" && !is_request_loopback {
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return Err(AppError::localized(
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"usage_script.request_https_required",
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"请求 URL 必须使用 HTTPS 协议(localhost 除外)",
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"Request URL must use HTTPS (localhost allowed)",
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));
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}
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// 核心安全检查:必须与 base_url 同源(相同域名和端口)
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if parsed_request.host_str() != parsed_base.host_str() {
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return Err(AppError::localized(
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"usage_script.request_host_mismatch",
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format!(
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"请求域名 {} 与 base_url 域名 {} 不匹配(必须是同源请求)",
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parsed_request.host_str().unwrap_or("unknown"),
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parsed_base.host_str().unwrap_or("unknown")
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),
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format!(
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"Request host {} must match base_url host {} (same-origin required)",
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parsed_request.host_str().unwrap_or("unknown"),
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parsed_base.host_str().unwrap_or("unknown")
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),
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));
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}
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// 检查端口是否匹配(考虑默认端口)
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// 使用 port_or_known_default() 会自动处理默认端口(http->80, https->443)
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match (parsed_request.port_or_known_default(), parsed_base.port_or_known_default()) {
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(Some(request_port), Some(base_port)) if request_port == base_port => {
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// 端口匹配,继续执行
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}
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(Some(request_port), Some(base_port)) => {
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return Err(AppError::localized(
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"usage_script.request_port_mismatch",
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format!(
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"请求端口 {} 必须与 base_url 端口 {} 匹配",
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request_port,
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base_port
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),
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format!(
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"Request port {} must match base_url port {}",
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request_port,
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base_port
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),
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));
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}
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_ => {
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// 理论上不会发生,因为 port_or_known_default() 应该总是返回 Some
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return Err(AppError::localized(
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"usage_script.request_port_unknown",
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"无法确定端口号",
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"Unable to determine port number",
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));
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}
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}
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// 禁止私有 IP 地址访问(除非 base_url 本身就是私有地址,用于开发环境)
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if let Some(host) = parsed_request.host_str() {
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let base_host = parsed_base.host_str().unwrap_or("");
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// 如果 base_url 不是私有地址,则禁止访问私有IP
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if !is_private_ip(base_host) && is_private_ip(host) {
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return Err(AppError::localized(
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"usage_script.private_ip_blocked",
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"禁止访问私有 IP 地址",
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"Access to private IP addresses is blocked",
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));
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}
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}
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Ok(())
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}
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/// 检查是否为私有 IP 地址
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fn is_private_ip(host: &str) -> bool {
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// localhost 检查
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if host.eq_ignore_ascii_case("localhost") {
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return true;
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}
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// 尝试解析为IP地址
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if let Ok(ip_addr) = host.parse::<std::net::IpAddr>() {
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return is_private_ip_addr(ip_addr);
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}
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// 如果不是IP地址,不是私有IP
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false
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}
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/// 使用标准库API检查IP地址是否为私有地址
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fn is_private_ip_addr(ip: std::net::IpAddr) -> bool {
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match ip {
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std::net::IpAddr::V4(ipv4) => {
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let octets = ipv4.octets();
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// 0.0.0.0/8 (包括未指定地址)
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if octets[0] == 0 {
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return true;
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}
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// RFC1918 私有地址范围
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// 10.0.0.0/8
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if octets[0] == 10 {
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return true;
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}
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// 172.16.0.0/12 (172.16.0.0 - 172.31.255.255)
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if octets[0] == 172 && octets[1] >= 16 && octets[1] <= 31 {
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return true;
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}
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// 192.168.0.0/16
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if octets[0] == 192 && octets[1] == 168 {
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return true;
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}
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// 其他特殊地址
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// 169.254.0.0/16 (链路本地地址)
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if octets[0] == 169 && octets[1] == 254 {
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return true;
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}
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// 127.0.0.0/8 (环回地址)
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if octets[0] == 127 {
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return true;
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}
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false
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}
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std::net::IpAddr::V6(ipv6) => {
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// IPv6 私有地址检查 - 使用标准库方法
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// ::1 (环回地址)
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if ipv6.is_loopback() {
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return true;
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}
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// 唯一本地地址 (fc00::/7)
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// Rust 1.70+ 可以使用 ipv6.is_unique_local()
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// 但为了兼容性,我们手动检查
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let first_segment = ipv6.segments()[0];
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if (first_segment & 0xfe00) == 0xfc00 {
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return true;
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}
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// 链路本地地址 (fe80::/10)
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if (first_segment & 0xffc0) == 0xfe80 {
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return true;
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}
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// 未指定地址 ::
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if ipv6.is_unspecified() {
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return true;
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}
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false
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}
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}
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}
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/// 检查是否为可疑的主机名(只检查明显不安全的模式)
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fn is_suspicious_hostname(hostname: &str) -> bool {
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// 空主机名
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if hostname.is_empty() {
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return true;
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}
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// 检查明显的主机名格式问题
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if hostname.contains("..") || hostname.starts_with(".") || hostname.ends_with(".") {
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return true;
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}
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// 检查是否为纯IP地址但没有合理格式(过于宽松的检查在这里可能不够,但主要依赖后续的同源检查)
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if hostname.parse::<std::net::IpAddr>().is_ok() {
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// IP地址格式的,在这里不直接拒绝,让同源检查来处理
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return false;
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}
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|
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// 检查是否包含明显不当的字符
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let suspicious_chars = ['<', '>', '"', '\'', '\n', '\r', '\t', '\0'];
|
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if hostname.chars().any(|c| suspicious_chars.contains(&c)) {
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return true;
|
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}
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|
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false
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}
|
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|
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/// 判断 URL 是否指向本机(localhost / loopback)
|
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fn is_loopback_host(url: &Url) -> bool {
|
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match url.host() {
|
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Some(Host::Domain(d)) => d.eq_ignore_ascii_case("localhost"),
|
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Some(Host::Ipv4(ip)) => ip.is_loopback(),
|
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Some(Host::Ipv6(ip)) => ip.is_loopback(),
|
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_ => false,
|
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}
|
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}
|
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|
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#[cfg(test)]
|
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mod tests {
|
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use super::*;
|
||||
|
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#[test]
|
||||
fn test_private_ip_validation() {
|
||||
// 测试IPv4私网地址
|
||||
|
||||
// RFC1918私网地址 - 应该返回true
|
||||
assert!(is_private_ip("10.0.0.1"));
|
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assert!(is_private_ip("10.255.255.254"));
|
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assert!(is_private_ip("172.16.0.1"));
|
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assert!(is_private_ip("172.31.255.255"));
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assert!(is_private_ip("192.168.0.1"));
|
||||
assert!(is_private_ip("192.168.255.255"));
|
||||
|
||||
// 链路本地地址 - 应该返回true
|
||||
assert!(is_private_ip("169.254.0.1"));
|
||||
assert!(is_private_ip("169.254.255.255"));
|
||||
|
||||
// 环回地址 - 应该返回true
|
||||
assert!(is_private_ip("127.0.0.1"));
|
||||
assert!(is_private_ip("localhost"));
|
||||
|
||||
// 公网172.x.x.x地址 - 应该返回false(这是修复的重点)
|
||||
assert!(!is_private_ip("172.0.0.1"));
|
||||
assert!(!is_private_ip("172.15.255.255"));
|
||||
assert!(!is_private_ip("172.32.0.1"));
|
||||
assert!(!is_private_ip("172.64.0.1"));
|
||||
assert!(!is_private_ip("172.67.0.1")); // Cloudflare CDN
|
||||
assert!(!is_private_ip("172.68.0.1"));
|
||||
assert!(!is_private_ip("172.100.50.25"));
|
||||
assert!(!is_private_ip("172.255.255.255"));
|
||||
|
||||
// 其他公网地址 - 应该返回false
|
||||
assert!(!is_private_ip("8.8.8.8")); // Google DNS
|
||||
assert!(!is_private_ip("1.1.1.1")); // Cloudflare DNS
|
||||
assert!(!is_private_ip("208.67.222.222")); // OpenDNS
|
||||
assert!(!is_private_ip("180.76.76.76")); // Baidu DNS
|
||||
|
||||
// 域名 - 应该返回false
|
||||
assert!(!is_private_ip("api.example.com"));
|
||||
assert!(!is_private_ip("www.google.com"));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_ipv6_private_validation() {
|
||||
// IPv6私网地址
|
||||
assert!(is_private_ip("::1")); // 环回地址
|
||||
assert!(is_private_ip("fc00::1")); // 唯一本地地址
|
||||
assert!(is_private_ip("fd00::1")); // 唯一本地地址
|
||||
assert!(is_private_ip("fe80::1")); // 链路本地地址
|
||||
assert!(is_private_ip("::")); // 未指定地址
|
||||
|
||||
// IPv6公网地址 - 应该返回false(修复的重点)
|
||||
assert!(!is_private_ip("2001:4860:4860::8888")); // Google DNS IPv6
|
||||
assert!(!is_private_ip("2606:4700:4700::1111")); // Cloudflare DNS IPv6
|
||||
assert!(!is_private_ip("2404:6800:4001:c01::67")); // Google DNS IPv6 (其他格式)
|
||||
assert!(!is_private_ip("2001:db8::1")); // 文档地址(非私网)
|
||||
|
||||
// 测试包含 ::1 子串但不是环回地址的公网地址
|
||||
assert!(!is_private_ip("2001:db8::1abc")); // 包含 ::1abc 但不是环回
|
||||
assert!(!is_private_ip("2606:4700::1")); // 包含 ::1 但不是环回
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_hostname_bypass_prevention() {
|
||||
// 看起来像本地,但实际是域名
|
||||
assert!(!is_private_ip("127.0.0.1.evil.com"));
|
||||
assert!(!is_private_ip("localhost.evil.com"));
|
||||
|
||||
// 0.0.0.0 应该被视为本地/阻断
|
||||
assert!(is_private_ip("0.0.0.0"));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_https_bypass_prevention() {
|
||||
// 非本地域名的 HTTP 应该被拒绝
|
||||
let result = validate_base_url("http://127.0.0.1.evil.com/api");
|
||||
assert!(result.is_err(), "Should reject HTTP for non-localhost domains");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_edge_cases() {
|
||||
// 边界情况测试
|
||||
assert!(is_private_ip("172.16.0.0")); // RFC1918起始
|
||||
assert!(is_private_ip("172.31.255.255")); // RFC1918结束
|
||||
assert!(is_private_ip("10.0.0.0")); // 10.0.0.0/8起始
|
||||
assert!(is_private_ip("10.255.255.255")); // 10.0.0.0/8结束
|
||||
assert!(is_private_ip("192.168.0.0")); // 192.168.0.0/16起始
|
||||
assert!(is_private_ip("192.168.255.255")); // 192.168.0.0/16结束
|
||||
|
||||
// 紧邻RFC1918的公网地址 - 应该返回false
|
||||
assert!(!is_private_ip("172.15.255.255")); // 172.16.0.0的前一个
|
||||
assert!(!is_private_ip("172.32.0.0")); // 172.31.255.255的后一个
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_ip_addr_parsing() {
|
||||
// 测试IP地址解析功能
|
||||
let ipv4_private = "10.0.0.1".parse::<std::net::IpAddr>().unwrap();
|
||||
assert!(is_private_ip_addr(ipv4_private));
|
||||
|
||||
let ipv4_public = "172.67.0.1".parse::<std::net::IpAddr>().unwrap();
|
||||
assert!(!is_private_ip_addr(ipv4_public));
|
||||
|
||||
let ipv6_private = "fc00::1".parse::<std::net::IpAddr>().unwrap();
|
||||
assert!(is_private_ip_addr(ipv6_private));
|
||||
|
||||
let ipv6_public = "2001:4860:4860::8888".parse::<std::net::IpAddr>().unwrap();
|
||||
assert!(!is_private_ip_addr(ipv6_public));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_port_comparison() {
|
||||
// 测试端口比较逻辑是否正确处理默认端口和显式端口
|
||||
|
||||
// 测试用例:(base_url, request_url, should_match)
|
||||
let test_cases = vec![
|
||||
// HTTPS默认端口测试
|
||||
("https://api.example.com", "https://api.example.com/v1/test", true),
|
||||
("https://api.example.com", "https://api.example.com:443/v1/test", true),
|
||||
("https://api.example.com:443", "https://api.example.com/v1/test", true),
|
||||
("https://api.example.com:443", "https://api.example.com:443/v1/test", true),
|
||||
|
||||
// 端口不匹配测试
|
||||
("https://api.example.com", "https://api.example.com:8443/v1/test", false),
|
||||
("https://api.example.com:443", "https://api.example.com:8443/v1/test", false),
|
||||
];
|
||||
|
||||
for (base_url, request_url, should_match) in test_cases {
|
||||
let result = validate_request_url(request_url, base_url);
|
||||
|
||||
if should_match {
|
||||
assert!(result.is_ok(),
|
||||
"应该匹配的URL被拒绝: base_url={}, request_url={}, error={}",
|
||||
base_url, request_url, result.unwrap_err());
|
||||
} else {
|
||||
assert!(result.is_err(),
|
||||
"应该不匹配的URL被允许: base_url={}, request_url={}",
|
||||
base_url, request_url);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user