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允许自定义下载路径

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zsyg
2025-07-02 10:10:02 +08:00
committed by GitHub
parent d5c83d854c
commit d454ac0fdc
6 changed files with 453 additions and 182 deletions
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206
DownloadManager.cs
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@@ -3,6 +3,7 @@ using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Runtime.InteropServices;
using System.Text.Json;
using System.Threading.Tasks;
using System.Windows.Forms;
@@ -85,44 +86,38 @@ namespace AppStore
private void DownloadFile(DownloadItem downloadItem, string fileName, string url)
{
string downloadsDir = string.Empty;
try
{
// 设置下载目录为用户文件夹中的Downloads
// 获取系统下载文件夹路径
// 获取系统下载文件夹路径
string downloadsDir;
IntPtr pathPtr = IntPtr.Zero;
// 获取并验证下载路径
downloadsDir = GetDownloadPath();
try
{
// 使用SHGetKnownFolderPath API获取下载文件夹
var downloadsFolderGuid = new Guid("374DE290-123F-4565-9164-39C4925E467B");
if (SHGetKnownFolderPath(downloadsFolderGuid, 0, IntPtr.Zero, out pathPtr) != 0)
// 检查路径是否有效
if (string.IsNullOrWhiteSpace(downloadsDir))
{
throw new Exception("无法获取下载文件夹路径");
throw new Exception("下载路径为空");
}
downloadsDir = Marshal.PtrToStringUni(pathPtr) ??
Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), "Downloads");
}
catch
{
downloadsDir = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), "Downloads");
}
finally
{
if (pathPtr != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(pathPtr);
}
}
if (!string.IsNullOrEmpty(downloadsDir))
{
// 尝试创建目录（如果不存在）
Directory.CreateDirectory(downloadsDir);
// 验证目录是否可写
string testFile = Path.Combine(downloadsDir, "write_test.tmp");
File.WriteAllText(testFile, "test");
File.Delete(testFile);
}
else
catch (Exception ex)
{
throw new Exception("无法确定下载文件夹位置");
// 回退到默认下载路径
string defaultPath = Path.Combine(
Environment.GetFolderPath(Environment.SpecialFolder.UserProfile),
"Downloads");
Logger.LogError($"下载路径{downloadsDir}不可用，将使用默认路径: {defaultPath}", ex);
downloadsDir = defaultPath;
Directory.CreateDirectory(downloadsDir);
}
@@ -318,12 +313,20 @@ namespace AppStore
currentProcess.BeginErrorReadLine();
progressTimer.Start();
}
catch (Exception ex)
{
downloadItem.Status = $"下载错误: {ex.Message}";
DownloadCompleted?.Invoke(downloadItem);
}
catch (Exception ex)
{
string errorDetails = $"下载错误: {ex.Message}\n";
errorDetails += $"目标路径: {downloadsDir}\n";
errorDetails += $"URL: {url}";
downloadItem.Status = $"下载失败: {ex.Message}";
Logger.LogError(errorDetails, ex);
MessageBox.Show($"下载失败:\n{errorDetails}", "错误",
MessageBoxButtons.OK, MessageBoxIcon.Error);
DownloadCompleted?.Invoke(downloadItem);
}
}
public void CancelDownload(DownloadItem item)
@@ -351,5 +354,138 @@ namespace AppStore
DownloadProgressChanged?.Invoke(item);
}
}
private string GetDownloadPath()
{
// 1. 优先读取用户设置的下载路径
try
{
string jsonPath = Path.Combine(
Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
"zsyg", "kortapp-z", ".date", "dl_path", "download_path.json");
Logger.Log($"尝试读取下载路径配置文件: {jsonPath}");
if (File.Exists(jsonPath))
{
string jsonString = File.ReadAllText(jsonPath);
Logger.Log($"配置文件内容: {jsonString}");
var jsonData = JsonSerializer.Deserialize<JsonElement>(jsonString);
string customPath = jsonData.GetProperty("DownloadPath").GetString()?.Trim();
if (!string.IsNullOrWhiteSpace(customPath))
{
Logger.Log($"读取到自定义路径: {customPath}");
// 处理路径格式
customPath = customPath.Replace(@"\\", @"\");
try
{
// 处理路径中的环境变量和特殊字符
customPath = Environment.ExpandEnvironmentVariables(customPath);
customPath = Path.GetFullPath(customPath);
Logger.Log($"标准化后的路径: {customPath}");
// 确保路径以目录分隔符结尾
if (!customPath.EndsWith(Path.DirectorySeparatorChar.ToString()))
{
customPath += Path.DirectorySeparatorChar;
}
// 验证驱动器是否存在
string drive = Path.GetPathRoot(customPath);
if (!Directory.Exists(drive))
{
Logger.LogError($"驱动器不存在: {drive}");
throw new Exception($"驱动器 {drive} 不存在");
}
// 验证路径
if (!Directory.Exists(customPath))
{
Logger.Log($"创建目录: {customPath}");
Directory.CreateDirectory(customPath);
}
// 更严格的路径可写性测试
string testFile = Path.Combine(customPath, $"write_test_{Guid.NewGuid()}.tmp");
Logger.Log($"测试路径可写性: {testFile}");
try
{
File.WriteAllText(testFile, DateTime.Now.ToString());
string content = File.ReadAllText(testFile);
File.Delete(testFile);
Logger.Log($"路径验证成功: {customPath}");
return customPath.TrimEnd(Path.DirectorySeparatorChar);
}
catch (Exception ex)
{
Logger.LogError($"路径不可写: {customPath}", ex);
throw new Exception($"路径不可写: {customPath}");
}
}
catch (Exception ex)
{
Logger.LogError($"路径处理失败: {customPath}", ex);
throw;
}
}
}
else
{
Logger.Log("未找到下载路径配置文件");
}
}
catch (Exception ex)
{
Logger.LogError("读取自定义下载路径失败", ex);
}
// 2. 回退到系统默认下载路径
IntPtr pathPtr = IntPtr.Zero;
try
{
var downloadsFolderGuid = new Guid("374DE290-123F-4565-9164-39C4925E467B");
if (SHGetKnownFolderPath(downloadsFolderGuid, 0, IntPtr.Zero, out pathPtr) == 0)
{
string defaultPath = Marshal.PtrToStringUni(pathPtr);
if (!string.IsNullOrEmpty(defaultPath))
{
Directory.CreateDirectory(defaultPath);
return defaultPath;
}
}
}
catch (Exception ex)
{
Logger.LogError("获取系统下载路径失败", ex);
}
finally
{
if (pathPtr != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(pathPtr);
}
}
// 3. 最终回退到相对路径 ~/Downloads
string relativePath = "~/Downloads";
string fallbackPath = relativePath.Replace("~",
Environment.GetFolderPath(Environment.SpecialFolder.UserProfile));
fallbackPath = Path.GetFullPath(fallbackPath);
try {
Directory.CreateDirectory(fallbackPath);
// 测试路径可写性
string testFile = Path.Combine(fallbackPath, "write_test.tmp");
File.WriteAllText(testFile, "test");
File.Delete(testFile);
return fallbackPath;
}
catch {
throw new Exception($"无法使用默认下载路径: {fallbackPath}");
}
}
}
}