我使用Chilkat php扩展名。而且我注意到chilkat方法Connect永远挂起。 put_ReadTimeout()和put_ConnectTimeout()无法解决。
我也通过ssh使用它。这样的代码很简单：
// $this->imap is a CKImap class
$this->imap->put_ConnectTimeout(10);
$this->imap->put_Ssl(true);
$this->imap->put_PeekMode(true);
$this->imap->put_Utf8(true);
$this->imap->put_VerboseLogging(true);
$this->imap->put_DebugLogFilePath('/var/www/logs/log_chilkat.txt');
$this->imap->SshOpenTunnel($proxy->ip, $proxy->port);
$this->imap->SshAuthenticatePw($proxy->username,$proxy->password);
// At this point it hangs forever
$this->imap->Connect($account->imap_server);
$this->imap->login($account->email, $account->password);
我错过了任何无用的条件和其他代码。它正在工作，有时挂在连接线上。也许问题在于SSH，也许SSH挂起了？
如何解决？我还没有找到解决chilkat函数的方法。另外我也不想使用信号来停止获取函数的执行。
我知道了。我做了很多测试，并挂在下一行：$this->imap->Connect($account->imap_server);
Chilkat详细日志如下：
SshOpenTunnel:
DllDate: May 11 2019
ChilkatVersion: 9.5.0.78
UnlockPrefix: *******
Architecture: Little Endian; 64-bit
Language: Linux PHP
VerboseLogging: 1
sshTunnel:
tunnelIdleTimeoutMs: 30000
tunnelConnectTimeoutMs: 10000
sshConnect:
connectSocket:
domainOrIpAddress: ******
port: 22
connectTimeoutMs: 10000
connect_ipv6_or_ipv4:
This is an IPV4 numeric address.
Domain to IP address resolution not needed.
getAddressInfo:
(leaveContext)
findIpAddrInfo:
(leaveContext)
connecting to IPV4 address...
ipAddress: *****
createSocket:
Setting SO_SNDBUF size
sendBufSize: 262144
Setting SO_RCVBUF size
recvBufSize: 4194304
(leaveContext)
connect:
Waiting for the connect to complete...
connectTimeoutMs: 10000
ck_getsockname_ipv4:
(leaveContext)
myIP: *****
myPort: 48882
socket connect successful.
(leaveContext 261ms)
(leaveContext 261ms)
(leaveContext 261ms)
Established TCP/IP connection with SSH server
Turning on TCP_NODELAY.
(leaveContext 262ms)
sshSetupConnection:
clientIdentifier: SSH-2.0-PuTTY_Release_0.70
Sending client identifier...
Done sending client identifier.
Reading server version...
initialDataFromSshServer: SSH-2.0-OpenSSH_4.3
serverVersion: SSH-2.0-OpenSSH_4.3
build_kexInit:
preferRsaHostKeyAlgorithm: 1
(leaveContext)
KeyExchangeAlgs:
algorithm: diffie-hellman-group-exchange-sha1
algorithm: diffie-hellman-group14-sha1
algorithm: diffie-hellman-group1-sha1
(leaveContext)
HostKeyAlgs:
algorithm: ssh-dss
algorithm: ssh-rsa
(leaveContext 1ms)
EncCS:
algorithm: aes128-ctr
algorithm: aes192-ctr
algorithm: aes256-ctr
algorithm: arcfour256
algorithm: arcfour128
algorithm: aes128-cbc
algorithm: 3des-cbc
algorithm: blowfish-cbc
algorithm: cast128-cbc
algorithm: aes192-cbc
algorithm: aes256-cbc
algorithm: arcfour
algorithm: rijndael-cbc@lysator.liu.se
(leaveContext)
EncSC:
algorithm: aes128-ctr
algorithm: aes192-ctr
algorithm: aes256-ctr
algorithm: arcfour256
algorithm: arcfour128
algorithm: aes128-cbc
algorithm: 3des-cbc
algorithm: blowfish-cbc
algorithm: cast128-cbc
algorithm: aes192-cbc
algorithm: aes256-cbc
algorithm: arcfour
algorithm: rijndael-cbc@lysator.liu.se
(leaveContext)
MacCS:
algorithm: hmac-md5
algorithm: hmac-sha1
algorithm: hmac-ripemd160
algorithm: hmac-ripemd160@openssh.com
algorithm: hmac-sha1-96
algorithm: hmac-md5-96
(leaveContext)
MacSC:
algorithm: hmac-md5
algorithm: hmac-sha1
algorithm: hmac-ripemd160
algorithm: hmac-ripemd160@openssh.com
algorithm: hmac-sha1-96
algorithm: hmac-md5-96
(leaveContext)
CompCS:
algorithm: none
algorithm: zlib@openssh.com
algorithm: zlib
(leaveContext)
CompSC:
algorithm: none
algorithm: zlib@openssh.com
algorithm: zlib
(leaveContext)
LangCS:
(leaveContext)
LangSC:
(leaveContext)
ChosenIncomingEncryption: aes128-ctr
ChosenOutgoingEncryptoin: aes128-ctr
ChosenIncomingMac: hmac-sha1
ChosenOutgoingMac: hmac-sha1
ChosenIncomingCompression: zlib
ChosenOutgoingCompression: zlib
ChosenKexAlgorithm: diffie-hellman-group1-sha1
choose_hostkey_algorithm:
(leaveContext)
ChosenHostKeyAlgorithm: ssh-rsa
numBits: 128
pbits: 1024
Using Oakley Group 2.
sendDhInit:
create_E:
(leaveContext 7ms)
Sent: SSH_MSG_KEXDH_INIT
(leaveContext 7ms)
computeExchangeHash:
dhReplyMsgType: 31
serverVersion: [SSH-2.0-OpenSSH_4.3]
Using SHA-1 for Key Exchange Hash
(leaveContext)
verifyHostKey:
rsaHostKeyVerify:
alg: ssh-rsa
hostKeyNumBits: 2048
verifyHashSsh:
Pkcs1_5_decode:
(leaveContext)
(leaveContext)
(leaveContext 1ms)
RSA host key signature verification success.
(leaveContext 1ms)
calculateKey:
(leaveContext)
calculateKey:
(leaveContext)
calculateKey:
(leaveContext)
calculateKey:
(leaveContext)
calculateKey:
(leaveContext)
calculateKey:
(leaveContext)
Sending newkeys to server...
Expecting newkeys from server...
SSH Key Exchange Success.
installNewKeys:
m_isRekey: 0
Outgoing compression is now zlib.
Incoming compression is now zlib.
Outgoing encryption is now AES 128 CTR
initCrypt_aes2:
(leaveContext)
initCrypt_aes2:
(leaveContext)
(leaveContext)
(leaveContext 934ms)
(leaveContext 1197ms)
Success.
(leaveContext 1197ms)
SshAuthenticatePw:
DllDate: May 11 2019
ChilkatVersion: 9.5.0.78
UnlockPrefix: *******
Architecture: Little Endian; 64-bit
Language: Linux PHP
VerboseLogging: 1
sshAuthenticatePw:
sshAuthenticatePw:
requestUserAuthService:
sendServiceRequest:
svcName: ssh-userauth
SentServiceReq: ssh-userauth
(leaveContext)
ssh-userauth service accepted.
(leaveContext 735ms)
sendUserAuthQuery:
(leaveContext)
AuthMethods: publickey,password
passwordAuth:
Sent login/password
Password authentication successful.
(leaveContext 593ms)
(leaveContext 1762ms)
(leaveContext 1762ms)
Success.
(leaveContext 1762ms)
Connect_Imap:
DllDate: May 11 2019
ChilkatVersion: 9.5.0.78
UnlockPrefix: *****
Architecture: Little Endian; 64-bit
Language: Linux PHP
VerboseLogging: 1
connectInner:
connectToImapServer:
hostname: ******
port: 993
Closing the SSH channel, if it exists.
sshCloseChannel:
(leaveContext)
socket2Connect:
connect2:
hostname: ******
port: 993
ssl: True
sshOpenChannel:
Opening new SSH channel within SSH tunnel.
sshTransportOpenChannel:
channelType: direct-tcpip
clientChannel: 4815
clientInitialWindowSize: 2097152
clientMaxPacketSize: 32768
directTcpHost: ******
directTcpPort: 993
ck_getsockname_ipv4:
(leaveContext)
originatorIP: ****
originatorPort: 48882
Sent open channel request
ClientChannelNum: 4815
ServerChannelNum: 0
ServerInitialWindowSize: 2097152
serverMaxPacketSize: 32768
(leaveContext 1324ms)
[SSH] Direct TCP/IP channel successfully opened.
sshChannelNum: 4815
(leaveContext 1324ms)
Setting up SSL/TLS to run through an SSH tunnel...
Clearing TLS client certificates.
clientHandshake:
The client cert chain is NULL.
cacheClientCerts:
Cached TLS client certificates.
Client cert chain is NULL.
(leaveContext)
clientHandshake2:
createRandom:
(leaveContext)
sendClientHello:
TlsClientHello_buildMessage:
(leaveContext)
sendHandshakeMessages:
channelSendData2:
(leaveContext)
(leaveContext 1ms)
(leaveContext 1ms)
readHandshakeMessages:
processHandshakeRecord:
processHandshakeMessage:
processServerHello:
negotiatedTlsVersion: TLS 1.2
negotiatedCipherSuite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
minAcceptableRsaKeySize: 1024
(leaveContext)
(leaveContext)
(leaveContext)
(leaveContext 3429ms)
readHandshakeMessages:
processHandshakeRecord:
processHandshakeMessage:
processIncomingCertificates:
loadX509DerAlt:
der_to_xml:
(leaveContext)
(leaveContext)
loadX509DerAlt:
der_to_xml:
(leaveContext)
(leaveContext)
(leaveContext)
(leaveContext)
(leaveContext 1ms)
(leaveContext 1409ms)
handleServerCert:
readHandshakeMessages:
processHandshakeRecord:
processHandshakeMessage:
processServerKeyExchange:
processEcDheKx:
(leaveContext)
(leaveContext)
(leaveContext)
(leaveContext)
(leaveContext)
(leaveContext)
handleServerKeyExchange:
readHandshakeMessages:
processHandshakeRecord:
processHandshakeMessage:
(leaveContext)
(leaveContext)
(leaveContext)
(leaveContext 1ms)
buildClientKeyExchange:
buildClientKeyExchangeECDHE:
verifyServerKeyExchange:
getServerCertPublicKey:
x509_getPublicKey:
(leaveContext)
(leaveContext)
loadAnyDer:
DecodeToAsn:
(leaveContext)
loadAnyAsn:
loadRsaPkcs1Asn:
(leaveContext)
(leaveContext)
(leaveContext)
composeVerifyData:
(leaveContext)
verifyHash:
keyType: Public
hashInSize: 32
padding: PKCS v1.5
Pkcs1_5_decode:
(leaveContext)
HashOid: 2.16.840.1.101.3.4.2.1
(leaveContext 1ms)
(leaveContext 1ms)
Verified server key exchange.
generateNewKey_ecc:
loadCurveByName:
name: secp256r1
(leaveContext)
genPubKey:
pointMultiply:
(leaveContext 6ms)
(leaveContext 6ms)
(leaveContext 6ms)
exportEccPoint:
(leaveContext)
loadSshPubKey:
loadCurveByName:
name: secp256r1
(leaveContext)
loadEccPoint:
(leaveContext)
(leaveContext)
sharedSecret:
pointMultiply:
(leaveContext 6ms)
(leaveContext 6ms)
(leaveContext 13ms)
(leaveContext 13ms)
sendClientKeyExchange:
sendHandshakeMessages:
channelSendData2:
(leaveContext)
(leaveContext)
(leaveContext)
sendChangeCipherSpec:
channelSendData2:
(leaveContext 1ms)
(leaveContext 1ms)
derive_keys:
initCrypt_aes2:
(leaveContext)
initCrypt_aes2:
(leaveContext)
(leaveContext)
buildFinished:
calc_finished:
(leaveContext)
(leaveContext)
sendHandshakeMessages:
channelSendData2:
(leaveContext)
(leaveContext)
readHandshakeMessages:
Returning because of channel EOF
Received EOF on SSH channel.
Received CHANNEL REQUEST message
channelNum: 4815
requestType: keepalive@openssh.com
wantReply: 1
Received EOF on SSH channel.
Received CHANNEL REQUEST message
channelNum: 4815
requestType: keepalive@openssh.com
wantReply: 1
Received EOF on SSH channel.
Received CHANNEL REQUEST message
channelNum: 4815
Received EOF on SSH channel.
Received EOF on SSH channel.
Received CHANNEL REQUEST message
channelNum: 4815
requestType: keepalive@openssh.com
wantReply: 1
Received EOF on SSH channel.
Received CHANNEL REQUEST message
channelNum: 4815
requestType: keepalive@openssh.com
wantReply: 1
Received EOF on SSH channel.
Received CHANNEL REQUEST message
channelNum: 4815
requestType: keepalive@openssh.com
wantReply: 1
Received EOF on SSH channel.
Received CHANNEL REQUEST message
channelNum: 4815
requestType: keepalive@openssh.com
wantReply: 1
Received EOF on SSH channel.
Received CHANNEL REQUEST message
channelNum: 4815
requestType: keepalive@openssh.com
wantReply: 1
Received EOF on SSH channel.
Received CHANNEL REQUEST message
channelNum: 4815
requestType: keepalive@openssh.com
wantReply: 1
Received EOF on SSH channel.
Received CHANNEL REQUEST message
channelNum: 4815
requestType: keepalive@openssh.com
wantReply: 1
Received EOF on SSH channel.
Received CHANNEL REQUEST message
channelNum: 4815
requestType: keepalive@openssh.com
wantReply: 1
Received EOF on SSH channel.
Received CHANNEL REQUEST message
channelNum: 4815
requestType: keepalive@openssh.com
wantReply: 1
Received EOF on SSH channel.
Received CHANNEL REQUEST message
channelNum: 4815
requestType: keepalive@openssh.com
wantReply: 1
Received EOF on SSH channel.
Received CHANNEL REQUEST message
channelNum: 4815
requestType: keepalive@openssh.com
wantReply: 1
Received EOF on SSH channel.
Received CHANNEL REQUEST message
channelNum: 4815
requestType: keepalive@openssh.com
wantReply: 1
Received EOF on SSH channel.
Received CHANNEL REQUEST message
channelNum: 4815
requestType: keepalive@openssh.com
wantReply: 1
Received EOF on SSH channel.
Received CHANNEL REQUEST message
channelNum: 4815
requestType: keepalive@openssh.com
wantReply: 1
Received EOF on SSH channel.
Received CHANNEL REQUEST message
channelNum: 4815
requestType: keepalive@openssh.com
wantReply: 1
Received EOF on SSH channel.
Received CHANNEL REQUEST message
channelNum: 4815
requestType: keepalive@openssh.com
wantReply: 1
Received EOF on SSH channel.
Received CHANNEL REQUEST message
channelNum: 4815
requestType: keepalive@openssh.com
wantReply: 1
Received EOF on SSH channel.
日志仅以Received EOF on SSH channel.结尾，如您所见，我使用的是最新的Chilkat版本。我的环境是Ubuntu服务器18.04 64位。 PHP 7.2.2 ZTS。我在Windows上也遇到了同样的问题。
！！！同样重要的一点是，该应用程序在45个线程的多线程中运行。每个线程都有自己的CkImap对象，并通过ssh执行到imap的连接。有时某些线程会挂在“连接到imap”点。
如何解决此问题？
我找到了一种方法put_AbortCurrent。我可以用它来中止Connect方法吗？我认为下一个代码必须在连接超时后终止连接：
$this->imap->put_AbortCurrent(true);
$connectedToImap = $this->imap->Connect($account->imap_server);
$this->imap->put_AbortCurrent(false);
答案 0 :(得分：1)
使用VerboseLogging和DebugLogFilePath找出发生了什么。复制带有这些属性集的挂起。然后查看日志文件以了解挂起发生的位置（请参见下面的示例代码）。
此外，请使用最新版本的Chilkat进行测试。如果使用的是旧版本，则可能是很久以前已修复的问题。发行说明位于：http://cknotes.com/chilkat-v9-5-0-78-release-notes/
$imap = new CkImap();
$imap->put_VerboseLogging(true);
$imap->put_DebugLogFilePath('someDir/imapDebugLog.txt');
$imap->put_ReadTimeout(10);
// ...
// Some UID...
$msgId = 123;
$bUid = true;
$strMime = $imap->fetchSingleAsMime($msgId,$bUid);
if ($imap->get_LastMethodSuccess() != true) {
print $imap->lastErrorText() . "\n";
exit;
}
print $strMime . "\n";