PHPSECLIB ->exec 和 ->write 在返回 true 之前未完成

Question

我正在尝试将一个非常耗时的脚本从 php 端点调用到运行 matlab 的服务器。

我决定使用 phpseclib，因为很多人推荐它的可移植性。我开始怀疑我是否做出了正确的决定。也许你可以帮忙！

我遇到的问题是，无论我如何运行以下命令，它总是在完成之前返回 true。

 $read = $sftp->read('/.*@.*[$|#]/', NET_SSH2_READ_REGEX);
 $sftp->write("matlab -nodisplay -nodesktop -nosplash -logfile remote_matlab.out -r \"cd('/some_supporting_files'); some_function('/some_data_I_just_uploaded.txt'); exit;\"\r\n");
 $read2 = $sftp->read('/.*@.*[$|#]/', NET_SSH2_READ_REGEX);

我也试过这样运行：

$sftp->exec("matlab -nodisplay -nodesktop -nosplash -logfile remote_matlab.out -r \"cd('/some_supporting_files'); some_function('/some_data_I_just_uploaded.txt'); exit;\"");

我已经测试了有关它的所有内容（例如，文件在那里，它不会出错等）它可以正确启动，但只是没有完成。我需要知道它何时完成，因为我需要下载它创建的文件。

如果我添加一个$sftp->setTimeout(40)，它每次都有效，但如果他们不需要，我不希望有人等那么久，我也不能保证到那时脚本会回来。

一旦我得到这个工作，我仍然需要从 Angular ping 这个脚本。

这是我得到的日志：

"log": [
    "<-",
    "->",
    "<- NET_SSH2_MSG_KEXINIT (since last: 0.158, network: 0.038s)",
    "-> NET_SSH2_MSG_KEXINIT (since last: 0.001, network: 0s)",
    "-> NET_SSH2_MSG_KEXDH_INIT (since last: 0.453, network: 0s)",
    "<- NET_SSH2_MSG_KEXDH_REPLY (since last: 0.038, network: 0.038s)",
    "-> NET_SSH2_MSG_NEWKEYS (since last: 0.457, network: 0s)",
    "<- NET_SSH2_MSG_NEWKEYS (since last: 0, network: 0s)",
    "-> NET_SSH2_MSG_SERVICE_REQUEST (since last: 0.006, network: 0s)",
    "<- NET_SSH2_MSG_SERVICE_ACCEPT (since last: 0.105, network: 0.105s)",
    "-> NET_SSH2_MSG_USERAUTH_REQUEST (since last: 0, network: 0s)",
    "<- NET_SSH2_MSG_USERAUTH_SUCCESS (since last: 0.071, network: 0.071s)",
    "-> NET_SSH2_MSG_CHANNEL_OPEN (since last: 0, network: 0s)",
    "<- NET_SSH2_MSG_CHANNEL_OPEN_CONFIRMATION (since last: 0.169, network: 0s)",
    "-> NET_SSH2_MSG_CHANNEL_REQUEST (since last: 0, network: 0s)",
    "<- NET_SSH2_MSG_CHANNEL_WINDOW_ADJUST (since last: 0.043, network: 0s)",
    "<- NET_SSH2_MSG_CHANNEL_SUCCESS (since last: 0, network: 0s)",
    "-> NET_SSH2_MSG_CHANNEL_DATA (since last: 0, network: 0s)",
    "<- NET_SSH2_MSG_CHANNEL_DATA (since last: 0.036, network: 0.036s)",
    "-> NET_SSH2_MSG_CHANNEL_DATA (since last: 0, network: 0s)",
    "<- NET_SSH2_MSG_CHANNEL_DATA (since last: 0.037, network: 0.037s)",
    "-> NET_SSH2_MSG_CHANNEL_DATA (since last: 0, network: 0s)",
    "<- NET_SSH2_MSG_CHANNEL_DATA (since last: 0.036, network: 0.036s)",
    "-> NET_SSH2_MSG_CHANNEL_DATA (since last: 0, network: 0s)",
    "<- NET_SSH2_MSG_CHANNEL_DATA (since last: 0.037, network: 0.036s)",
    "-> NET_SSH2_MSG_CHANNEL_DATA (since last: 0, network: 0s)",
    "<- NET_SSH2_MSG_CHANNEL_DATA (since last: 0.034, network: 0.034s)",
    "-> NET_SSH2_MSG_CHANNEL_OPEN (since last: 0, network: 0s)",
    "<- NET_SSH2_MSG_CHANNEL_OPEN_CONFIRMATION (since last: 0.033, network: 0.033s)",
    "-> NET_SSH2_MSG_CHANNEL_REQUEST (since last: 0, network: 0s)",
    "<- NET_SSH2_MSG_CHANNEL_SUCCESS (since last: 0.041, network: 0.041s)",
    "-> NET_SSH2_MSG_CHANNEL_REQUEST (since last: 0, network: 0s)",
    "<- NET_SSH2_MSG_CHANNEL_WINDOW_ADJUST (since last: 0.035, network: 0.035s)",
    "<- NET_SSH2_MSG_CHANNEL_SUCCESS (since last: 0, network: 0s)",
    "-> NET_SSH2_MSG_CHANNEL_DATA (since last: 0, network: 0s)",
    "<- NET_SSH2_MSG_CHANNEL_DATA (since last: 0.003, network: 0s)",
    "<- NET_SSH2_MSG_CHANNEL_DATA (since last: 0.032, network: 0s)",
    "<- NET_SSH2_MSG_CHANNEL_DATA (since last: 0.01, network: 0s)",
    "<- NET_SSH2_MSG_CHANNEL_DATA (since last: 2.3551, network: 0s)",
    "<- NET_SSH2_MSG_CHANNEL_DATA (since last: 0.249, network: 0s)",
    "<- NET_SSH2_MSG_CHANNEL_DATA (since last: 0.059, network: 0s)",
    "-> NET_SSH2_MSG_CHANNEL_DATA (since last: 17.339, network: 0s)",
    "<- NET_SSH2_MSG_CHANNEL_DATA (since last: 0.041, network: 0.041s)"
]

Answer 1

啊啊啊！在形象地把我的头撞到墙上之后，我注意到每次我打电话给$sftp->read() 都会有一点进步。因此，我添加了一个 do-while 循环以在读取变为黑色空时停止。成功了！

$output->read = [];
$read = true;
do {
    $read = $sftp->read('/.*@.*[$|#]/', NET_SSH2_READ_REGEX);
    $output->read[] = $read;
} while ($read);

$sftp->read() 如果没有更多内容可读取，将返回 false。

我的完整代码如下所示：

$created = $sftp->write("matlab -nodisplay -nodesktop -nosplash -logfile remote_matlab.out -r \"cd('/some_supporting_files'); some_function('/some_data_I_just_uploaded.txt'); exit;\"\r\n");

$output->read = [];
$read = true;
do {
    $read = $sftp->read('/.*@.*[$|#]/', NET_SSH2_READ_REGEX);
    $output->read[] = $read;
} while ($read);

if(!$created){
 //continue your script
}

我仍然无法使用$sftp->exec()

虽然上述解决方案有效，但如果花费太长时间而没有提供 $sftp->read() 读取的内容，它就会停止工作。我仍然希望有人能以更强大的方式解决这个问题。