implemented working externAgent wrapper

[progcomp10.git] / src / link / pexpect / examples / ssh_session.py

diff --git a/src/link/pexpect/examples/ssh_session.py b/src/link/pexpect/examples/ssh_session.py
new file mode 100755 (executable)
index 0000000..4d0e228
--- /dev/null
+++ b/src/link/pexpect/examples/ssh_session.py
@@ -0,0 +1,94 @@
+#
+# Eric S. Raymond
+#
+# Greatly modified by Nigel W. Moriarty
+# April 2003
+#
+from pexpect import *
+import os, sys
+import getpass
+import time
+    
+class ssh_session:
+
+    "Session with extra state including the password to be used."
+
+    def __init__(self, user, host, password=None, verbose=0):
+
+        self.user = user
+        self.host = host
+        self.verbose = verbose
+        self.password = password
+        self.keys = [
+            'authenticity',
+            'assword:',
+            '@@@@@@@@@@@@',
+            'Command not found.',
+            EOF,
+            ]
+        
+        self.f = open('ssh.out','w')
+            
+    def __repr__(self):
+
+        outl = 'class :'+self.__class__.__name__
+        for attr in self.__dict__:
+            if attr == 'password':
+                outl += '\n\t'+attr+' : '+'*'*len(self.password)
+            else:
+                outl += '\n\t'+attr+' : '+str(getattr(self, attr))
+        return outl
+
+    def __exec(self, command):
+
+        "Execute a command on the remote host.    Return the output."
+        child = spawn(command,
+                                    #timeout=10,
+                                    )
+        if self.verbose:
+            sys.stderr.write("-> " + command + "\n")
+        seen = child.expect(self.keys)
+        self.f.write(str(child.before) + str(child.after)+'\n')
+        if seen == 0:
+            child.sendline('yes')
+            seen = child.expect(self.keys)
+        if seen == 1:
+            if not self.password:
+                self.password = getpass.getpass('Remote password: ')
+            child.sendline(self.password)
+            child.readline()
+            time.sleep(5)
+            # Added to allow the background running of remote process
+            if not child.isalive():
+                seen = child.expect(self.keys)
+        if seen == 2: 
+            lines = child.readlines()
+            self.f.write(lines)
+        if self.verbose:
+            sys.stderr.write("<- " + child.before + "|\n")
+        try:
+            self.f.write(str(child.before) + str(child.after)+'\n')
+        except:
+            pass
+        self.f.close()
+        return child.before
+
+    def ssh(self, command):
+
+        return self.__exec("ssh -l %s %s \"%s\"" \
+                                             % (self.user,self.host,command))
+
+    def scp(self, src, dst):
+
+        return self.__exec("scp %s %s@%s:%s" \
+                                             % (src, session.user, session.host, dst))
+
+    def exists(self, file):
+
+        "Retrieve file permissions of specified remote file."
+        seen = self.ssh("/bin/ls -ld %s" % file)
+        if string.find(seen, "No such file") > -1:
+            return None # File doesn't exist
+        else:
+            return seen.split()[0] # Return permission field of listing.
+