对微控制器的 FtpWebRequest 总是导致 (451) Local error in processing
FtpWebRequest to Microcontroller always results in (451) Local error in processing
我正在用 C# 编写 Windows Forms 应用程序，允许用户连接到微控制器并通过 FTP 上传程序文件。
我可以通过Filezilla成功上传程序文件。但是当我 运行 下面的代码时，我收到错误“远程服务器返回错误：(451) 本地处理错误。”在“ftpstream.Close();”这一行每次无论我尝试上传什么文件，无论文件大小或文件类型如何，新文件都会显示在 FiPy 上的 Filezilla 中，但大小为 0 字节。
我已经删除了微控制器上的所有程序文件，所以我知道存储 space 不是问题，我不认为它是防火墙问题，因为我可以通过 Filezilla 成功上传。
抛出的 WebException 在 InnerException 中没有显示额外的细节，StatusDescription 返回为空字符串。
我post将这个问题发到了我正在使用的特定微控制器的论坛上，但没有得到解决方案。这是 link 到 post，它包括 FTP 日志和评论中尝试的一些解决方案：
https://forum.pycom.io/topic/6937/fipy-ftp-upload-in-c-returns-451-local-error-in-processing
我已经用尽了所有 google 个结果。
谁能帮帮我？
我的代码：
var deviceFilepath = "ftp://192.168.4.1/flash/main.py";
var appFilepath = "rwis\main.py";
string UserId = "micro";
string Password = "python";
FtpWebRequest ftp = (FtpWebRequest)FtpWebRequest.Create(deviceFilepath);
ftp.Credentials = new NetworkCredential(UserId, Password);
ftp.UsePassive = true;
ftp.Method = WebRequestMethods.Ftp.UploadFile;
var buffer = File.ReadAllBytes(appFilepath);
Stream ftpstream = ftp.GetRequestStream();
ftpstream.Write(buffer, 0, buffer.Length);
ftpstream.Close();
编辑：
FTP 来自 Filezilla 的日志：
2021-04-09 09:36:52 3608 1 Status: Connecting to 192.168.4.1:21...
2021-04-09 09:36:52 3608 1 Status: Connection established, waiting for welcome message...
2021-04-09 09:36:52 3608 1 Response: 220 Micropython FTP Server
2021-04-09 09:36:52 3608 1 Status: Plain FTP is insecure. Please switch to FTP over TLS.
2021-04-09 09:36:52 3608 1 Command: USER micro
2021-04-09 09:36:52 3608 1 Response: 331
2021-04-09 09:36:52 3608 1 Command: PASS ******
2021-04-09 09:36:52 3608 1 Response: 230
2021-04-09 09:36:52 3608 1 Status: Server does not support non-ASCII characters.
2021-04-09 09:36:52 3608 1 Status: Logged in
2021-04-09 09:36:52 3608 1 Status: Retrieving directory listing...
2021-04-09 09:36:52 3608 1 Command: PWD
2021-04-09 09:36:52 3608 1 Response: 257 /
2021-04-09 09:36:52 3608 1 Status: Directory listing of "/" successful
2021-04-09 09:36:55 3608 1 Status: Retrieving directory listing of "/flash"...
2021-04-09 09:36:55 3608 1 Command: CWD /flash
2021-04-09 09:36:55 3608 1 Response: 250
2021-04-09 09:36:55 3608 1 Command: TYPE I
2021-04-09 09:36:55 3608 1 Response: 200
2021-04-09 09:36:55 3608 1 Command: PASV
2021-04-09 09:36:55 3608 1 Response: 227 (192,168,4,1,7,232)
2021-04-09 09:36:55 3608 1 Command: LIST
2021-04-09 09:36:55 3608 1 Response: 150
2021-04-09 09:36:56 3608 1 Response: 226
2021-04-09 09:36:56 3608 1 Status: Directory listing of "/flash" successful
2021-04-09 09:36:59 3608 1 Status: Starting upload of C:\Users\fcons_tzfi6gp\Documents\GitHub\production-assembly-app\bin\Debug\rwis\rwis_config.py
2021-04-09 09:36:59 3608 1 Command: TYPE A
2021-04-09 09:36:59 3608 1 Response: 200
2021-04-09 09:36:59 3608 1 Command: PASV
2021-04-09 09:36:59 3608 1 Response: 227 (192,168,4,1,7,232)
2021-04-09 09:36:59 3608 1 Command: STOR rwis_config.py
2021-04-09 09:36:59 3608 1 Response: 150
2021-04-09 09:36:59 3608 1 Response: 226
2021-04-09 09:36:59 3608 1 Status: File transfer successful, transferred 1,361 bytes in 1 second
FTP 从我的代码中登录：
System.Net Information: 0 : [15404] FtpWebRequest#47891719::.ctor(ftp://192.168.4.1/flash/rwis_config.py)
System.Net Information: 0 : [15404] FtpWebRequest#47891719::GetRequestStream(Method=STOR.)
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Created connection from 192.168.4.2:61116 to 192.168.4.1:21.
System.Net Information: 0 : [15404] Associating FtpWebRequest#47891719 with FtpControlStream#16454088
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Received response [220 Micropython FTP Server]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Sending command [USER micro]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Received response [331 ]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Sending command [PASS ********]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Received response [230 ]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Sending command [OPTS utf8 on]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Received response [502 ]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Sending command [PWD]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Received response [257 /]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Sending command [TYPE I]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Received response [200 ]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Sending command [PASV]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Received response [227 (192,168,4,1,7,232)]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Sending command [STOR flash/rwis_config.py]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Received response [150 ]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Received response [451 ]
我让它与 FluentFTP 一起工作。我不是 100% 确定问题是什么，也许使用 CWD 修复了它，也许 FluentFTP 中的一些底层 logic/command 处理得更好，无论哪种方式，FTP 日志现在更紧密与 Filezilla 中的匹配，没有更多错误！
我的新密码：
FtpClient client = new FtpClient("ftp://192.168.4.1");
client.Credentials = new NetworkCredential(UserId, Password);
client.DataConnectionType = FtpDataConnectionType.PASV;
client.Connect();
client.SetWorkingDirectory("/flash");
client.UploadFile(appFilepath, "rwis_config.py", FtpRemoteExists.NoCheck);
client.Disconnect();
新FTP日志：
# Connect()
Status: Connecting to ***:21
Response: 220 Micropython FTP Server
Command: USER ***
Response: 331
Command: PASS ***
Response: 230
Command: FEAT
Response: 211 no-features
Status: Text encoding: System.Text.ASCIIEncoding
Command: SYST
Response: 215 UNIX Type: L8
# SetWorkingDirectory("/flash")
Command: CWD /flash
Response: 250
# UploadFile("rwis\rwis_config.py", "rwis_config.py", NoCheck, False, None)
# OpenWrite("rwis_config.py", Binary)
Command: TYPE I
Response: 200
# OpenPassiveDataStream(PASV, "STOR rwis_config.py", 0)
Command: PASV
Response: 227 (192,168,4,1,7,232)
Status: Connecting to ***:2024
Command: STOR rwis_config.py
Response: 150
Status: Disposing FtpSocketStream...
Response: 226
Status: Testing connectivity using Socket.Poll()...
Command: QUIT
Response: 221
Status: Disposing FtpSocketStream...
我正在用 C# 编写 Windows Forms 应用程序，允许用户连接到微控制器并通过 FTP 上传程序文件。
我可以通过Filezilla成功上传程序文件。但是当我 运行 下面的代码时，我收到错误“远程服务器返回错误：(451) 本地处理错误。”在“ftpstream.Close();”这一行每次无论我尝试上传什么文件，无论文件大小或文件类型如何，新文件都会显示在 FiPy 上的 Filezilla 中，但大小为 0 字节。
我已经删除了微控制器上的所有程序文件，所以我知道存储 space 不是问题，我不认为它是防火墙问题，因为我可以通过 Filezilla 成功上传。
抛出的 WebException 在 InnerException 中没有显示额外的细节，StatusDescription 返回为空字符串。
我post将这个问题发到了我正在使用的特定微控制器的论坛上，但没有得到解决方案。这是 link 到 post，它包括 FTP 日志和评论中尝试的一些解决方案： https://forum.pycom.io/topic/6937/fipy-ftp-upload-in-c-returns-451-local-error-in-processing
我已经用尽了所有 google 个结果。
谁能帮帮我？
我的代码：
var deviceFilepath = "ftp://192.168.4.1/flash/main.py";
var appFilepath = "rwis\main.py";
string UserId = "micro";
string Password = "python";
FtpWebRequest ftp = (FtpWebRequest)FtpWebRequest.Create(deviceFilepath);
ftp.Credentials = new NetworkCredential(UserId, Password);
ftp.UsePassive = true;
ftp.Method = WebRequestMethods.Ftp.UploadFile;
var buffer = File.ReadAllBytes(appFilepath);
Stream ftpstream = ftp.GetRequestStream();
ftpstream.Write(buffer, 0, buffer.Length);
ftpstream.Close();
编辑：
FTP 来自 Filezilla 的日志：
2021-04-09 09:36:52 3608 1 Status: Connecting to 192.168.4.1:21...
2021-04-09 09:36:52 3608 1 Status: Connection established, waiting for welcome message...
2021-04-09 09:36:52 3608 1 Response: 220 Micropython FTP Server
2021-04-09 09:36:52 3608 1 Status: Plain FTP is insecure. Please switch to FTP over TLS.
2021-04-09 09:36:52 3608 1 Command: USER micro
2021-04-09 09:36:52 3608 1 Response: 331
2021-04-09 09:36:52 3608 1 Command: PASS ******
2021-04-09 09:36:52 3608 1 Response: 230
2021-04-09 09:36:52 3608 1 Status: Server does not support non-ASCII characters.
2021-04-09 09:36:52 3608 1 Status: Logged in
2021-04-09 09:36:52 3608 1 Status: Retrieving directory listing...
2021-04-09 09:36:52 3608 1 Command: PWD
2021-04-09 09:36:52 3608 1 Response: 257 /
2021-04-09 09:36:52 3608 1 Status: Directory listing of "/" successful
2021-04-09 09:36:55 3608 1 Status: Retrieving directory listing of "/flash"...
2021-04-09 09:36:55 3608 1 Command: CWD /flash
2021-04-09 09:36:55 3608 1 Response: 250
2021-04-09 09:36:55 3608 1 Command: TYPE I
2021-04-09 09:36:55 3608 1 Response: 200
2021-04-09 09:36:55 3608 1 Command: PASV
2021-04-09 09:36:55 3608 1 Response: 227 (192,168,4,1,7,232)
2021-04-09 09:36:55 3608 1 Command: LIST
2021-04-09 09:36:55 3608 1 Response: 150
2021-04-09 09:36:56 3608 1 Response: 226
2021-04-09 09:36:56 3608 1 Status: Directory listing of "/flash" successful
2021-04-09 09:36:59 3608 1 Status: Starting upload of C:\Users\fcons_tzfi6gp\Documents\GitHub\production-assembly-app\bin\Debug\rwis\rwis_config.py
2021-04-09 09:36:59 3608 1 Command: TYPE A
2021-04-09 09:36:59 3608 1 Response: 200
2021-04-09 09:36:59 3608 1 Command: PASV
2021-04-09 09:36:59 3608 1 Response: 227 (192,168,4,1,7,232)
2021-04-09 09:36:59 3608 1 Command: STOR rwis_config.py
2021-04-09 09:36:59 3608 1 Response: 150
2021-04-09 09:36:59 3608 1 Response: 226
2021-04-09 09:36:59 3608 1 Status: File transfer successful, transferred 1,361 bytes in 1 second
FTP 从我的代码中登录：
System.Net Information: 0 : [15404] FtpWebRequest#47891719::.ctor(ftp://192.168.4.1/flash/rwis_config.py)
System.Net Information: 0 : [15404] FtpWebRequest#47891719::GetRequestStream(Method=STOR.)
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Created connection from 192.168.4.2:61116 to 192.168.4.1:21.
System.Net Information: 0 : [15404] Associating FtpWebRequest#47891719 with FtpControlStream#16454088
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Received response [220 Micropython FTP Server]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Sending command [USER micro]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Received response [331 ]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Sending command [PASS ********]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Received response [230 ]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Sending command [OPTS utf8 on]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Received response [502 ]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Sending command [PWD]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Received response [257 /]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Sending command [TYPE I]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Received response [200 ]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Sending command [PASV]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Received response [227 (192,168,4,1,7,232)]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Sending command [STOR flash/rwis_config.py]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Received response [150 ]
System.Net Information: 0 : [15404] FtpControlStream#16454088 - Received response [451 ]
我让它与 FluentFTP 一起工作。我不是 100% 确定问题是什么，也许使用 CWD 修复了它，也许 FluentFTP 中的一些底层 logic/command 处理得更好，无论哪种方式，FTP 日志现在更紧密与 Filezilla 中的匹配，没有更多错误！
我的新密码：
FtpClient client = new FtpClient("ftp://192.168.4.1");
client.Credentials = new NetworkCredential(UserId, Password);
client.DataConnectionType = FtpDataConnectionType.PASV;
client.Connect();
client.SetWorkingDirectory("/flash");
client.UploadFile(appFilepath, "rwis_config.py", FtpRemoteExists.NoCheck);
client.Disconnect();
新FTP日志：
# Connect()
Status: Connecting to ***:21
Response: 220 Micropython FTP Server
Command: USER ***
Response: 331
Command: PASS ***
Response: 230
Command: FEAT
Response: 211 no-features
Status: Text encoding: System.Text.ASCIIEncoding
Command: SYST
Response: 215 UNIX Type: L8
# SetWorkingDirectory("/flash")
Command: CWD /flash
Response: 250
# UploadFile("rwis\rwis_config.py", "rwis_config.py", NoCheck, False, None)
# OpenWrite("rwis_config.py", Binary)
Command: TYPE I
Response: 200
# OpenPassiveDataStream(PASV, "STOR rwis_config.py", 0)
Command: PASV
Response: 227 (192,168,4,1,7,232)
Status: Connecting to ***:2024
Command: STOR rwis_config.py
Response: 150
Status: Disposing FtpSocketStream...
Response: 226
Status: Testing connectivity using Socket.Poll()...
Command: QUIT
Response: 221
Status: Disposing FtpSocketStream...