QString SshScpSend::send()
{
QFileInfo src(_source);
const char *loclfile=qPrintable(src.absoluteFilePath());
_currentState = ScpPrepare;
_local = fopen(loclfile, "rb");
if (!_local) {
qDebug() << "ERROR : Can't open local file " << loclfile;
return "";
}
stat(loclfile, &_fileinfo);
/* Send a file via scp. The mode parameter must only have permissions! */
#ifdef DEBUG_SCPSEND
qDebug() << "DEBUG : Send to " << qPrintable(_destination + "/" + src.fileName());
#endif
sshChannel = libssh2_scp_send(sshClient->session(), qPrintable(_destination + src.fileName()), _fileinfo.st_mode & 0777, (unsigned long)_fileinfo.st_size);
if ((!sshChannel) && (libssh2_session_last_errno(sshClient->session()) != LIBSSH2_ERROR_EAGAIN)) {
char *errmsg;
int errlen;
libssh2_session_last_error(sshClient->session(), &errmsg, &errlen, 0);
qDebug() << "ERROR : Unable to open a session: " << errmsg;
_currentState = ScpError;
}
#ifdef DEBUG_SCPSEND
qDebug() << "DEBUG : End of send function";
#endif
return _destination + src.fileName();
}
/**
* @function ssh.writeFile
*
* ### Synopsis
*
* var status = ssh.writeFile(handle, srcPath, dstPath);
* var status = ssh.writeFile(handle, srcPath, dstPath, mode);
*
* Write file to remote server via SCP.
*
* @param {object} handle - opaque handle to already open SSH2 connection.
* @param {string} srcPath - path to file in local file system to send.
* @param {string} dstPath - path to file in remote file system to create.
* @param {int} mode - desired resulting file permissions of file on remote end.
* @return {boolean} success - true if the transfer succeeded, string error message if transfer failed.
*
* ### Note
* If mode is not provided, the file mode of the file being sent will be used.
*/
static JSVAL ssh2_scp_send(JSARGS args) {
HandleScope scope;
SSH2 *ssh2 = HANDLE(args[0]);
String::Utf8Value srcPath(args[1]);
String::Utf8Value dstPath(args[2]);
int mode;
struct stat fileinfo;
if (stat(*srcPath, &fileinfo) != 0) {
return scope.Close(String::New(strerror(errno)));
}
if (args.Length() > 3) {
mode = args[3]->IntegerValue();
}
else {
mode = fileinfo.st_mode;
}
mode &= 0777;
int fd = open(*srcPath, O_RDONLY);
if (fd < 0) {
return scope.Close(String::New(strerror(errno)));
}
#ifdef libssh2_scp_send64
LIBSSH2_CHANNEL *channel = libssh2_scp_send64(ssh2->mSession, *dstPath, mode, fileinfo.st_size, 0, 0);
#else
LIBSSH2_CHANNEL *channel = libssh2_scp_send(ssh2->mSession, *dstPath, mode, fileinfo.st_size);
#endif
if (!channel) {
char *errmsg;
int errlen;
libssh2_session_last_error(ssh2->mSession, &errmsg, &errlen, 0);
return scope.Close(String::New(errmsg, errlen));
}
char mem[1024];
ssize_t toWrite = fileinfo.st_size;
while (toWrite > 0) {
ssize_t nRead = read(fd, mem, 1024);
if (nRead < 0) {
int eNum = errno;
libssh2_channel_free(channel);
close(fd);
return scope.Close(String::New(strerror(eNum)));
}
int rc = libssh2_channel_write(channel, mem, nRead);
if (rc < 0) {
char *errmsg;
int errlen;
libssh2_session_last_error(ssh2->mSession, &errmsg, &errlen, 0);
libssh2_channel_free(channel);
close(fd);
return scope.Close(String::New(errmsg));
}
toWrite -= nRead;
}
close(fd);
libssh2_channel_free(channel);
return scope.Close(True());
}
int main(int argc, char *argv[])
{
unsigned long hostaddr;
int sock, i, auth_pw = 1;
struct sockaddr_in sin;
const char *fingerprint;
LIBSSH2_SESSION *session;
LIBSSH2_CHANNEL *channel;
const char *username="******";
const char *password="******";
const char *loclfile="scp_write.c";
const char *scppath="/tmp/TEST";
FILE *local;
int rc;
#if defined(HAVE_IOCTLSOCKET)
long flag = 1;
#endif
char mem[1024];
size_t nread;
char *ptr;
struct stat fileinfo;
#ifdef WIN32
WSADATA wsadata;
WSAStartup(MAKEWORD(2,0), &wsadata);
#endif
if (argc > 1) {
hostaddr = inet_addr(argv[1]);
} else {
hostaddr = htonl(0x7F000001);
}
if (argc > 2) {
username = argv[2];
}
if (argc > 3) {
password = argv[3];
}
if(argc > 4) {
loclfile = argv[4];
}
if (argc > 5) {
scppath = argv[5];
}
local = fopen(loclfile, "rb");
if (!local) {
fprintf(stderr, "Can't local file %s\n", loclfile);
goto shutdown;
}
stat(loclfile, &fileinfo);
/* Ultra basic "connect to port 22 on localhost"
* Your code is responsible for creating the socket establishing the
* connection
*/
sock = socket(AF_INET, SOCK_STREAM, 0);
sin.sin_family = AF_INET;
sin.sin_port = htons(22);
sin.sin_addr.s_addr = hostaddr;
if (connect(sock, (struct sockaddr*)(&sin),
sizeof(struct sockaddr_in)) != 0) {
fprintf(stderr, "failed to connect!\n");
return -1;
}
/* We set the socket non-blocking. We do it after the connect just to
simplify the example code. */
#ifdef F_SETFL
/* FIXME: this can/should be done in a more portable manner */
rc = fcntl(sock, F_GETFL, 0);
fcntl(sock, F_SETFL, rc | O_NONBLOCK);
#elif defined(HAVE_IOCTLSOCKET)
ioctlsocket(sock, FIONBIO, &flag);
#else
#ifdef WIN32
u_long mode = 1;
ioctlsocket (sock, FIONBIO, &mode);
#else
#error "add support for setting the socket non-blocking here"
#endif
#endif
/* Create a session instance
*/
session = libssh2_session_init();
if(!session)
return -1;
/* Since we have set non-blocking, tell libssh2 we are non-blocking */
libssh2_session_set_blocking(session, 0);
/* ... start it up. This will trade welcome banners, exchange keys,
* and setup crypto, compression, and MAC layers
*/
while ((rc = libssh2_session_startup(session, sock))
== LIBSSH2_ERROR_EAGAIN);
if(rc) {
fprintf(stderr, "Failure establishing SSH session: %d\n", rc);
return -1;
}
/* At this point we havn't yet authenticated. The first thing to do
* is check the hostkey's fingerprint against our known hosts Your app
* may have it hard coded, may go to a file, may present it to the
* user, that's your call
*/
fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_MD5);
fprintf(stderr, "Fingerprint: ");
for(i = 0; i < 16; i++) {
fprintf(stderr, "%02X ", (unsigned char)fingerprint[i]);
}
fprintf(stderr, "\n");
if (auth_pw) {
/* We could authenticate via password */
while ((rc = libssh2_userauth_password(session, username, password)) ==
LIBSSH2_ERROR_EAGAIN);
if (rc) {
fprintf(stderr, "Authentication by password failed.\n");
goto shutdown;
}
} else {
/* Or by public key */
while ((rc = libssh2_userauth_publickey_fromfile(session, username,
"/home/username/.ssh/id_rsa.pub",
"/home/username/.ssh/id_rsa",
password)) == LIBSSH2_ERROR_EAGAIN);
if (rc) {
fprintf(stderr, "\tAuthentication by public key failed\n");
goto shutdown;
}
}
/* Request a file via SCP */
do {
channel = libssh2_scp_send(session, scppath, 0x1FF & fileinfo.st_mode,
(unsigned long)fileinfo.st_size);
if ((!channel) && (libssh2_session_last_errno(session) !=
LIBSSH2_ERROR_EAGAIN)) {
char *err_msg;
libssh2_session_last_error(session, &err_msg, NULL, 0);
fprintf(stderr, "%s\n", err_msg);
goto shutdown;
}
} while (!channel);
fprintf(stderr, "SCP session waiting to send file\n");
do {
nread = fread(mem, 1, sizeof(mem), local);
if (nread <= 0) {
/* end of file */
break;
}
ptr = mem;
do {
/* write data in a loop until we block */
while ((rc = libssh2_channel_write(channel, ptr, nread)) ==
LIBSSH2_ERROR_EAGAIN);
if (rc < 0) {
fprintf(stderr, "ERROR %d\n", rc);
}
ptr += rc;
nread -= rc;
} while (nread > 0);
} while (1);
fprintf(stderr, "Sending EOF\n");
while (libssh2_channel_send_eof(channel) == LIBSSH2_ERROR_EAGAIN);
fprintf(stderr, "Waiting for EOF\n");
while (libssh2_channel_wait_eof(channel) == LIBSSH2_ERROR_EAGAIN);
fprintf(stderr, "Waiting for channel to close\n");
while (libssh2_channel_wait_closed(channel) == LIBSSH2_ERROR_EAGAIN);
libssh2_channel_free(channel);
channel = NULL;
shutdown:
while ((rc = libssh2_session_disconnect(session,
"Normal Shutdown, Thank you for playing")) == LIBSSH2_ERROR_EAGAIN);
libssh2_session_free(session);
#ifdef WIN32
Sleep(1000);
closesocket(sock);
#else
sleep(1);
close(sock);
#endif
fprintf(stderr, "all done\n");
return 0;
}
int main(int argc, char *argv[])
{
unsigned long hostaddr;
int sock, i, auth_pw = 1;
struct sockaddr_in sin;
const char *fingerprint;
LIBSSH2_SESSION *session = NULL;
LIBSSH2_CHANNEL *channel;
const char *username="******";
const char *password="******";
const char *loclfile="scp_write.c";
const char *scppath="/tmp/TEST";
FILE *local;
int rc;
char mem[1024];
size_t nread;
char *ptr;
struct stat fileinfo;
#ifdef WIN32
WSADATA wsadata;
WSAStartup(MAKEWORD(2,0), &wsadata);
#endif
if (argc > 1) {
hostaddr = inet_addr(argv[1]);
} else {
hostaddr = htonl(0x7F000001);
}
if (argc > 2) {
username = argv[2];
}
if (argc > 3) {
password = argv[3];
}
if(argc > 4) {
loclfile = argv[4];
}
if (argc > 5) {
scppath = argv[5];
}
rc = libssh2_init (0);
if (rc != 0) {
fprintf (stderr, "libssh2 initialization failed (%d)\n", rc);
return 1;
}
local = fopen(loclfile, "rb");
if (!local) {
fprintf(stderr, "Can't open local file %s\n", loclfile);
return -1;
}
stat(loclfile, &fileinfo);
/* Ultra basic "connect to port 22 on localhost"
* Your code is responsible for creating the socket establishing the
* connection
*/
sock = socket(AF_INET, SOCK_STREAM, 0);
if(-1 == sock) {
fprintf(stderr, "failed to create socket!\n");
return -1;
}
sin.sin_family = AF_INET;
sin.sin_port = htons(22);
sin.sin_addr.s_addr = hostaddr;
if (connect(sock, (struct sockaddr*)(&sin),
sizeof(struct sockaddr_in)) != 0) {
fprintf(stderr, "failed to connect!\n");
return -1;
}
/* Create a session instance
*/
session = libssh2_session_init();
if(!session)
return -1;
/* ... start it up. This will trade welcome banners, exchange keys,
* and setup crypto, compression, and MAC layers
*/
rc = libssh2_session_handshake(session, sock);
if(rc) {
fprintf(stderr, "Failure establishing SSH session: %d\n", rc);
return -1;
}
/* At this point we havn't yet authenticated. The first thing to do
* is check the hostkey's fingerprint against our known hosts Your app
* may have it hard coded, may go to a file, may present it to the
* user, that's your call
*/
fingerprint = libssh2_hostkey_hash(session, LIBSSH2_HOSTKEY_HASH_SHA1);
fprintf(stderr, "Fingerprint: ");
for(i = 0; i < 20; i++) {
fprintf(stderr, "%02X ", (unsigned char)fingerprint[i]);
}
fprintf(stderr, "\n");
if (auth_pw) {
/* We could authenticate via password */
if (libssh2_userauth_password(session, username, password)) {
fprintf(stderr, "Authentication by password failed.\n");
goto shutdown;
}
} else {
/* Or by public key */
if (libssh2_userauth_publickey_fromfile(session, username,
"/home/username/.ssh/id_rsa.pub",
"/home/username/.ssh/id_rsa",
password)) {
fprintf(stderr, "\tAuthentication by public key failed\n");
goto shutdown;
}
}
/* Send a file via scp. The mode parameter must only have permissions! */
channel = libssh2_scp_send(session, scppath, fileinfo.st_mode & 0777,
(unsigned long)fileinfo.st_size);
if (!channel) {
char *errmsg;
int errlen;
int err = libssh2_session_last_error(session, &errmsg, &errlen, 0);
fprintf(stderr, "Unable to open a session: (%d) %s\n", err, errmsg);
goto shutdown;
}
fprintf(stderr, "SCP session waiting to send file\n");
do {
nread = fread(mem, 1, sizeof(mem), local);
if (nread <= 0) {
/* end of file */
break;
}
ptr = mem;
do {
/* write the same data over and over, until error or completion */
rc = libssh2_channel_write(channel, ptr, nread);
if (rc < 0) {
fprintf(stderr, "ERROR %d\n", rc);
break;
}
else {
/* rc indicates how many bytes were written this time */
ptr += rc;
nread -= rc;
}
} while (nread);
} while (1);
fprintf(stderr, "Sending EOF\n");
libssh2_channel_send_eof(channel);
fprintf(stderr, "Waiting for EOF\n");
libssh2_channel_wait_eof(channel);
fprintf(stderr, "Waiting for channel to close\n");
libssh2_channel_wait_closed(channel);
libssh2_channel_free(channel);
channel = NULL;
shutdown:
if(session) {
libssh2_session_disconnect(session, "Normal Shutdown, Thank you for playing");
libssh2_session_free(session);
}
#ifdef WIN32
closesocket(sock);
#else
close(sock);
#endif
if (local)
fclose(local);
fprintf(stderr, "all done\n");
libssh2_exit();
return 0;
}
void Push::run()
{
QLOG_TRACE() << "Sending file " << m_sourceFilePath;
// Check the local file is there first
qDebug() << "SecureConnection::Push " << m_sourceFilePath << "->" << m_destinationFilePath;
QByteArray source(m_sourceFilePath.toLocal8Bit());
FILE* localFileHandle(fopen(source.data(), "rb"));
if (!localFileHandle) {
QString msg("Could not stat file ");
msg += m_sourceFilePath;
throw Exception(msg);
}
struct stat fileInfo;
stat(source.data(), &fileInfo);
// Set blocking, which apparently is required.
libssh2_session_set_blocking(m_session, 1);
QByteArray destination(m_destinationFilePath.toLocal8Bit());
LIBSSH2_CHANNEL* channel(libssh2_scp_send(m_session, destination.data(),
fileInfo.st_mode & 0777, (unsigned long)fileInfo.st_size));
if (channel == 0) {
QString msg("Unable to open channel for writing to file ");
msg += m_destinationFilePath;
throw Exception(msg);
}
size_t nread;
char buffer[1024];
char* ptr;
int rc;
do {
nread = fread(buffer, 1, sizeof(buffer), localFileHandle);
if (nread <= 0) break; // end of file
ptr = buffer;
do {
// write the same data over and over, until error or completion
// rc indicates how many bytes were written this time
rc = libssh2_channel_write(channel, ptr, nread);
if (rc < 0) {
m_errorMessage = "Error writing to channel " + QString::number(rc);
break;
}else {
ptr += rc;
nread -= rc;
}
} while (nread && !m_terminate);
copyProgress();
} while (!m_terminate);
fclose(localFileHandle);
libssh2_channel_send_eof(channel);
libssh2_channel_wait_eof(channel);
libssh2_channel_wait_closed(channel);
libssh2_channel_free(channel);
if (!m_errorMessage.isEmpty()) throw Exception(m_errorMessage);
if (!m_terminate) m_success = true;
}
void SshScpSend::sshDataReceived()
{
static char mem[1024];
static size_t nread;
static char *ptr;
int rc;
switch(_currentState)
{
case ScpPrepare:
if(!sshChannel) {
sshChannel = libssh2_scp_send(sshClient->session(), qPrintable(_destination), _fileinfo.st_mode & 0777, (unsigned long)_fileinfo.st_size);
if ((!sshChannel) && (libssh2_session_last_errno(sshClient->session()) != LIBSSH2_ERROR_EAGAIN)) {
char *errmsg;
int errlen;
libssh2_session_last_error(sshClient->session(), &errmsg, &errlen, 0);
qDebug() << "ERROR : Unable to open a session: " << errmsg;
}
if(sshChannel) {
#ifdef DEBUG_SCPSEND
qDebug() << "DEBUG : ScpPrepare Send Accepted";
#endif
_currentState = ScpCopy;
}
}
break;
case ScpCopy:
do {
nread = fread(mem, 1, sizeof(mem), _local);
if (nread <= 0) {
/* end of file */
_currentState = ScpEof;
sshDataReceived();
break;
}
ptr = mem;
do {
/* write the same data over and over, until error or completion */
rc = libssh2_channel_write(sshChannel, ptr, nread);
if (rc < 0) {
qDebug() << "ERROR : Copy error " << rc;
_currentState = ScpError;
break;
}
else {
/* rc indicates how many bytes were written this time */
ptr += rc;
nread -= rc;
}
} while (nread);
} while(1);
break;
case ScpEof:
#ifdef DEBUG_SCPSEND
qDebug() << "DEBUG : Sending EOF";
#endif
libssh2_channel_send_eof(sshChannel);
_currentState = ScpClose;
break;
case ScpClose:
#ifdef DEBUG_SCPSEND
qDebug() << "DEBUG : Waiting EOF";
#endif
libssh2_channel_wait_eof(sshChannel);
_state = true;
_currentState = ScpEnd;
stopChannel();
emit transfertTerminate();
break;
case ScpError:
qDebug() << "ERROR : SCP ERROR";
_state = false;
stopChannel();
emit transfertTerminate();
break;
case ScpEnd:
#ifdef DEBUG_SCPSEND
qDebug() << "DEBUG : Wait end";
#endif
break;
}
}
//Uses ssh to transfer a data file.
//I took most of this code from the example file scp_write.c in the libssh2 examples.
//!!!! This could really be generalized... !!!!
int SendFilesTo51(char* loclfile,char* serverlocation)
{
int error_code = 0;
#if defined(HAVE_LIBSSH2)
char filename[1024];
if(FindFilename(loclfile,filename))
{
printf("Error: Bad filename for hydrograph file. (%s)\n",loclfile);
return 1;
}
char scppath[1024];
sprintf(scppath,"%s/%s",serverlocation,filename);
//sprintf(scppath,"/data/ifc_01_hydro/%s",filename);
//Uh, yeah, probably not very secure...
char *username = "******",*password = "******";
//Check out the file info
struct stat fileinfo;
stat(loclfile,&fileinfo);
FILE* local = fopen(loclfile, "rb");
if(!local)
{
printf("Can't open local file %s\n", loclfile);
return -1;
}
//Init ssh stuff
long unsigned int hostaddr = inet_addr("128.255.26.166");
if(hostaddr < 0)
{
printf("Bad host address.\n");
return 1;
}
int rc = libssh2_init(0);
if(rc)
{
printf("Problem initializing libssh2 (%i)\n",rc);
return 1;
}
int sock = socket(AF_INET,SOCK_STREAM,0);
if(-1 == sock)
{
printf("Failed to create socket\n");
return 1;
}
struct sockaddr_in sin;
sin.sin_family = AF_INET;
sin.sin_port = htons(22);
sin.sin_addr.s_addr = hostaddr;
if(connect(sock,(struct sockaddr*)(&sin),sizeof(struct sockaddr_in)) != 0)
{
printf("Failed to connect!\n");
return 1;
}
//Create session instance and start it
LIBSSH2_SESSION *session;
session = libssh2_session_init();
if(!session) return 1;
rc = libssh2_session_handshake(session, sock);
if(rc)
{
printf("Failure establishing SSH session %i\n",rc);
return 1;
}
//Authenticate
const char* fingerprint = libssh2_hostkey_hash(session,LIBSSH2_HOSTKEY_HASH_SHA1);
if(libssh2_userauth_password(session, username, password))
{
printf("Authentication by password failed.\n");
error_code = 1;
goto shutdown;
}
//Copy file
LIBSSH2_CHANNEL *channel = libssh2_scp_send(session,scppath,fileinfo.st_mode & 0777,(unsigned long)fileinfo.st_size);
if(!channel)
{
char *errmsg;
int errlen;
int err = libssh2_session_last_error(session, &errmsg, &errlen, 0);
printf("Unable to open a session: (%d) %s\n", err, errmsg);
error_code = 1;
goto shutdown;
}
char mem[1024],*ptr;
size_t nread;
do
{
nread = fread(mem, 1, sizeof(mem), local);
if (nread <= 0)
{
// end of file
break;
}
ptr = mem;
do
{
// write the same data over and over, until error or completion
rc = libssh2_channel_write(channel, ptr, nread);
if (rc < 0)
{
printf("ERROR %d\n", rc);
break;
}
else
{
// rc indicates how many bytes were written this time
ptr += rc;
nread -= rc;
}
} while(nread);
} while(1);
//Tell server we are done
libssh2_channel_send_eof(channel);
libssh2_channel_wait_eof(channel);
libssh2_channel_wait_closed(channel);
//Clean up
libssh2_channel_free(channel);
channel = NULL;
shutdown:
if(session)
{
libssh2_session_disconnect(session, "Normal Shutdown, Thank you for playing");
libssh2_session_free(session);
}
close(sock);
if(local) fclose(local);
if(!error_code && remove(loclfile))
printf("[%i]: Error deleting file %s.\n",my_rank,loclfile);
libssh2_exit();
if(!error_code) printf("File %s uploaded!\n",loclfile);
#endif
return error_code;
}
