ftp_ssl_connect 能否通过 TLS 处理隐式 FTP？默认情况下它使用显式。
我正在尝试上传到仅接受通过 tls 在端口 990 上的隐式 ftp 的服务器；有没有人遇到过这个？你是怎么解决的？
【问题讨论】：
ftp_ssl_connect 只是显式的
如果你需要隐式，使用 curl
$fp = fopen($path, 'r');
$ftp_server = 'ftps://'.$server.'/'.$filename;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $ftp_server);
curl_setopt($ch, CURLOPT_USERPWD,$user.':'.$pass);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($ch, CURLOPT_FTP_SSL, CURLFTPSSL_TRY);
curl_setopt($ch, CURLOPT_FTPSSLAUTH, CURLFTPAUTH_TLS);
curl_setopt($ch, CURLOPT_UPLOAD, 1);
curl_setopt($ch, CURLOPT_INFILE, $fp);
$output = curl_exec($ch);
$error_no = curl_errno($ch);
//var_dump(curl_error($ch));
curl_close($ch);
【讨论】：
根据 frustrum 和 Steven Jeffries 的回答，我进一步扩展了它。这重用了 curl 连接并具有一些目录列表功能，包括按上次修改对文件进行排序的功能。
这是针对 PHP 7 的，对于更低版本，您将不得不重写 操作符行。
<?php
/**
* Implicit FTP
* @author Nico
* Based on
* http://stackoverflow.com/questions/6589730/ftp-ssl-connect-with-implicit-ftp-over-tls
* http://stackoverflow.com/questions/845220/get-the-last-modified-date-of-a-remote-file
*/
class ImplicitFtp {
private $server;
private $username;
private $password;
private $curlhandle;
public function __construct($server, $username, $password) {
$this->server = $server;
$this->username = $username;
$this->password = $password;
$this->curlhandle = curl_init();
}
public function __destruct() {
if (!empty($this->curlhandle))
@curl_close($this->curlhandle);
}
/**
* @param string $remote remote path
* @return resource a cURL handle on success, false on errors.
*/
private function common($remote) {
curl_reset($this->curlhandle);
curl_setopt($this->curlhandle, CURLOPT_URL, 'ftps://' . $this->server . '/' . $remote);
curl_setopt($this->curlhandle, CURLOPT_USERPWD, $this->username . ':' . $this->password);
curl_setopt($this->curlhandle, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($this->curlhandle, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($this->curlhandle, CURLOPT_FTP_SSL, CURLFTPSSL_TRY);
curl_setopt($this->curlhandle, CURLOPT_FTPSSLAUTH, CURLFTPAUTH_TLS);
return $this->curlhandle;
}
public function download($remote, $local = null) {
if ($local === null) {
$local = tempnam('/tmp', 'implicit_ftp');
}
if ($fp = fopen($local, 'w')) {
$this->curlhandle = self::common($remote);
curl_setopt($this->curlhandle, CURLOPT_UPLOAD, 0);
curl_setopt($this->curlhandle, CURLOPT_FILE, $fp);
curl_exec($this->curlhandle);
if (curl_error($this->curlhandle)) {
return false;
} else {
return $local;
}
}
return false;
}
public function upload($local, $remote) {
if ($fp = fopen($local, 'r')) {
$this->curlhandle = self::common($remote);
curl_setopt($this->curlhandle, CURLOPT_UPLOAD, 1);
curl_setopt($this->curlhandle, CURLOPT_INFILE, $fp);
curl_exec($this->curlhandle);
$err = curl_error($this->curlhandle);
return !$err;
}
return false;
}
/**
* Get file/folder names
* @param string $remote
* @return string[]
*/
public function listnames($remote) {
if (substr($remote, -1) != '/')
$remote .= '/';
$this->curlhandle = self::common($remote);
curl_setopt($this->curlhandle, CURLOPT_UPLOAD, 0);
curl_setopt($this->curlhandle, CURLOPT_FTPLISTONLY, 1);
curl_setopt($this->curlhandle, CURLOPT_RETURNTRANSFER, 1);
$result = curl_exec($this->curlhandle);
if (curl_error($this->curlhandle)) {
return false;
} else {
$files = explode("\r\n", trim($result));
return $files;
return $local;
}
}
/**
* Get file/folder names ordered by modified date
* @param string $remote
* @return string[]
*/
public function listbydate($remote) {
$files = $this->listnames($remote);
if (empty($files))
return null;
$filedata = array();
foreach ($files as $file) {
$this->curlhandle = self::common($remote . '/' . $file);
curl_setopt($this->curlhandle, CURLOPT_NOBODY, 1);
curl_setopt($this->curlhandle, CURLOPT_FILETIME, 1);
curl_setopt($this->curlhandle, CURLOPT_RETURNTRANSFER, 1);
$result = curl_exec($this->curlhandle);
if ($result) {
$timestamp = curl_getinfo($this->curlhandle, CURLINFO_FILETIME);
$fileobj = array();
$fileobj['name'] = $file;
$fileobj['lastmodified'] = ($timestamp != -1) ? date("Y-m-d H:i:s", $timestamp) : null;
$filedata[] = $fileobj;
}
}
usort($filedata, function ($item1, $item2) {
return date($item2['lastmodified']) <=> date($item1['lastmodified']);
});
return $filedata;
}
/**
* Get file/folder raw data
* @param string $remote
* @return string[]
*/
public function rawlist($remote) {
if (substr($remote, -1) != '/')
$remote .= '/';
$this->curlhandle = self::common($remote);
curl_setopt($this->curlhandle, CURLOPT_UPLOAD, 0);
curl_setopt($this->curlhandle, CURLOPT_RETURNTRANSFER, 1);
$result = curl_exec($this->curlhandle);
if (curl_error($this->curlhandle)) {
return false;
} else {
$files = explode("\n", trim($result));
return $files;
return $local;
}
}
/**
* Get file/folder parsed data into an array
* @param string $remote
* @return array[]
*/
public function list($remote) {
$this->curlhandleildren = $this->rawlist($remote);
if (!empty($this->curlhandleildren)) {
$items = array();
foreach ($this->curlhandleildren as $this->curlhandleild) {
$chunks = preg_split("/\s+/", $this->curlhandleild);
list($item['rights'], $item['number'], $item['user'], $item['group'], $item['size'], $item['month'], $item['day'], $item['time']) = $chunks;
array_splice($chunks, 0, 8);
$item['name'] = trim(implode(" ", $chunks));
$item['type'] = $chunks[0]{0} === 'd' ? 'directory' : 'file';
$items[] = $item;
}
return $items;
}
return false;
}
}
?>
【讨论】：
private function common($remote) 是 private static function common($remote) 使用 PHP 的静态方法运算符 self::common($remote); 调用它？
对于碰巧在此页面上使用谷歌搜索并想要快速解决方案的任何人：
我扩展了 frustrum 的答案，并使用此方法为基本上传/下载创建了一个简单的类。希望对你有帮助！
<?php
class ImplicitFtp {
private $server;
private $username;
private $password;
public function __construct($server, $username, $password) {
$this->server = $server;
$this->username = $username;
$this->password = $password;
}
public function download($remote, $local = null) {
if ($local === null) {
$local = tempnam('/tmp', 'implicit_ftp');
}
if ($fp = fopen($local, 'w')) {
$ftp_server = 'ftps://' . $this->server . '/' . $remote;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $ftp_server);
curl_setopt($ch, CURLOPT_USERPWD, $this->username . ':' . $this->password);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($ch, CURLOPT_FTP_SSL, CURLFTPSSL_TRY);
curl_setopt($ch, CURLOPT_FTPSSLAUTH, CURLFTPAUTH_TLS);
curl_setopt($ch, CURLOPT_UPLOAD, 0);
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_exec($ch);
if (curl_error($ch)) {
curl_close($ch);
return false;
} else {
curl_close($ch);
return $local;
}
}
return false;
}
public function upload($local, $remote) {
if ($fp = fopen($local, 'r')) {
$ftp_server = 'ftps://' . $this->server . '/' . $remote;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $ftp_server);
curl_setopt($ch, CURLOPT_USERPWD, $this->username . ':' . $this->password);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($ch, CURLOPT_FTP_SSL, CURLFTPSSL_TRY);
curl_setopt($ch, CURLOPT_FTPSSLAUTH, CURLFTPAUTH_TLS);
curl_setopt($ch, CURLOPT_UPLOAD, 1);
curl_setopt($ch, CURLOPT_INFILE, $fp);
curl_exec($ch);
$err = curl_error($ch);
curl_close($ch);
return !$err;
}
return false;
}
}
【讨论】：