| commit | author | age | ||
| 8ab985 | 1 | import paramiko |
| d7e21a | 2 | import os.path |
| 8ab985 | 3 | |
| SP | 4 | class Connection: |
| 5 | def __init__(self, hostname, port=22, username=None, password=None): | |
| 6 | self.hostname=hostname | |
| 7 | self.port=port | |
| 8 | if(username!=None): | |
| 9 | self.username=username | |
| 10 | else: | |
| 11 | self.username='' | |
| 12 | if(password!=None): | |
| 13 | self.password=password | |
| 14 | else: | |
| 15 | self.password='' | |
| 16 | self.ssh=paramiko.SSHClient() | |
| 17 | self.ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy()) | |
| 18 | self.connected=False | |
| 19 | return | |
| 20 | ||
| 21 | def connect(self, Timeout=5): | |
| 22 | if(not self.connected): | |
| af3d0e | 23 | try: |
| SP | 24 | print("Trying to connect to: "+self.username+"@"+self.hostname+":"+str(self.port)+".") |
| 25 | self.ssh.connect(self.hostname, username=self.username, password=self.password, port=self.port, timeout=Timeout) | |
| 26 | self.connected=True | |
| 27 | except: | |
| 28 | print("Error establishing connection with "+self.username+"@"+self.hostname+":"+str(self.port)+".") | |
| 29 | exit(1) | |
| 8ab985 | 30 | else: |
| SP | 31 | print("Already connected!") |
| 32 | return | |
| 33 | ||
| 34 | def disconnect(self): | |
| 35 | if(self.connected): | |
| af3d0e | 36 | try: |
| SP | 37 | self.ssh.close() |
| 38 | except: | |
| 39 | print("Cannot disconect. Unknown error.") | |
| 8ab985 | 40 | else: |
| SP | 41 | print("Cannot disconect. Already disconnected.") |
| 42 | self.connected=False | |
| 43 | ||
| 44 | def execute(self,command): | |
| 45 | if(self.connected): | |
| 46 | try: | |
| 47 | stdin,stdout,stderr=self.ssh.exec_command(command) | |
| 48 | output=stdout.readlines() | |
| 49 | errors=stderr.readlines() | |
| 50 | # print(errors) | |
| 51 | return(output) | |
| 52 | except: | |
| 53 | print("Cannot execute remote commands") | |
| 54 | else: | |
| 55 | print("Cannot execute remote commands. Connect first.") | |
| 56 | ||
| 57 | def send_file(self, local, remote): | |
| af3d0e | 58 | sftp=self.ssh.open_sftp() |
| SP | 59 | sftp.put(local,remote) |
| 60 | sftp.close() | |
| 8ab985 | 61 | |
| SP | 62 | def receive_file(self,remote,local): |
| af3d0e | 63 | sftp=self.ssh.open_sftp() |
| SP | 64 | sftp.get(remote,local) |
| 65 | sftp.close() | |
| 8ab985 | 66 | |
| SP | 67 | def mkdir_remote(self,directory): |
| 68 | sftp=self.ssh.open_sftp() | |
| 69 | sftp.mkdir(directory) | |
| 70 | sftp.close() | |
| 71 | ||
| d7e21a | 72 | def mkdir_p(self,sftp, remote_directory): |
| SP | 73 | """Change to this directory, recursively making new folders if needed. |
| 74 | Returns True if any folders were created. Recursive algorithm.""" | |
| 75 | if remote_directory == '/': | |
| 76 | # absolute path so change directory to root | |
| 77 | sftp.chdir('/') | |
| 78 | return | |
| 79 | if remote_directory == '': | |
| 80 | # top-level relative directory must exist | |
| 81 | return | |
| 82 | try: | |
| 83 | sftp.chdir(remote_directory) # sub-directory exists | |
| 84 | except IOError: | |
| 85 | dirname, basename = os.path.split(remote_directory.rstrip('/')) | |
| 86 | self.mkdir_p(sftp, dirname) # make parent directories | |
| 87 | sftp.mkdir(basename) # sub-directory missing, so created it | |
| 88 | sftp.chdir(basename) | |
| 89 | return True | |
| 8ab985 | 90 | |
| d7e21a | 91 | def send_multiple_files_in_directory(self,local_files,directory): |
| af3d0e | 92 | sftp=self.ssh.open_sftp() |
| SP | 93 | # try: |
| 94 | # sftp.chdir(directory) # Test if remote_path exists | |
| 95 | # except (IOError,FileNotFoundError): | |
| 96 | # sftp.mkdir(directory) # Create remote_path | |
| 97 | # sftp.chdir(directory) | |
| 98 | self.mkdir_p(sftp, directory) | |
| 99 | for f in set(local_files): | |
| 100 | sftp.put(f, f) | |
| 101 | sftp.close() | |
