Added most of the required functions for faking guestfs over ssh

git-svn-id: https://svn.lusy.fri.uni-lj.si/kpov-public-svn/kpov-public@250 5cf9fbd1-b2bc-434c-b4b7-e852f4f63414

1 files changed, 95 insertions, 45 deletions

diff --git a/kpov_judge/create_disk_images.py b/kpov_judge/create_disk_images.py
index d36ff90..1f5f643 100755
--- a/kpov_judge/create_disk_images.py
+++ b/kpov_judge/create_disk_images.py
@@ -15,56 +15,103 @@ import pyssh
 import paramiko
 
 class SSHGuestFs():
-    def __init__(hostname, username, password):
-s = pxssh.pxssh()
-        hostname = raw_input('hostname: ')
-        username = raw_input('username: ')
-        password = getpass.getpass('password: ')
-        s.login (hostname, username, password)
-        s.sendline ('uptime') 
-        self.conn = pxssh.open(hostname, username, password)    
-    def chmod(self, mode, path)
-        self.conn.
+    def __init__(hostname, path, username, password):
+        return_results = {}
+        client = paramiko.SSHClient()
+        client.load_system_host_keys()
+        client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+        client.connect(hostname, username=username, password=password)
+        self.conn = client
+        self.mountdir = path
+    def chmod(self, mode, path):
+        self.conn.exec_command('chmod {} "{}"'.format(mode, os.path.join(self.mountdir, path)))
     def chown(self, owner, group, path)
-        pass
-    def command(self, arguments)
-        pass
-    def cp(self, src, dest)  
-        pass
-    def cp_a(self, src, dest)
-        pass
-    def cp_r(self, src, dest)
-        pass
-    def dd(self, src, dest)
-        pass
-    def df(self)
-        pass
-    def download(self)
-        pass
+        self.conn.exec_command('chown {}.{} "{}"'.format(owner, group, os.path.join(self.mountdir, path))
+    def command(self, arguments):
+        self.conn.exec_command(arguments)
+    def cp(self, src, dest):
+        src = os.path.join(self.mountdir, src)
+        dst = os.path.join(self.mountdir, dst)
+        self.conn.exec_command('cp "{}" "{}"'.format(src, dest))
+    def cp_a(self, src, dest):
+        src = os.path.join(self.mountdir, src)
+        dst = os.path.join(self.mountdir, dst)
+        self.conn.exec_command('cp -a "{}" "{}"'.format(src, dest))
+    def cp_r(self, src, dest):
+        src = os.path.join(self.mountdir, src)
+        dst = os.path.join(self.mountdir, dst)
+        self.conn.exec_command('cp -r "{}" "{}"'.format(src, dest))
+    def dd(self, src, dest):
+        src = os.path.join(self.mountdir, src)
+        dst = os.path.join(self.mountdir, dst)
+        self.conn.exec_command('dd if="{}" of="{}"'.format(src, dest))
+    def df(self):
+        stdin, stdout, stderr = self.conn.exec_command('df')
+        return stdin.read()
+    def download(self, remotefilename, filename):
+        path = os.path.join(self.mountdir, remotefilename)
+        stdin, stdout, stderr = self.conn.exec_command('dd if="{}"'.format(path))
+        with open(filename, 'w') as f:
+            while data = stdin.read(4096):
+                f.write(data)
+    def download_offset (self, remotefilename, filename, offset, size):
+        path = os.path.join(self.mountdir, remotefilename)
+        stdin, stdout, stderr = self.conn.exec_command('dd bs=1 skip={} count={} if="{}"'.format(
+            offset, size ,path))
+        with open(filename, 'w') as f:
+            while data = stdin.read(4096):
+                f.write(data)
     def du(self, path)
-        pass
+        path = os.path.join(self.mountdir, path)
+        stdin, stdout, stderr = self.conn.exec_command('du "{}"'.format(path))
+        return stdin.read()
     def equal(self, file1, file2)
+        src = os.path.join(self.mountdir, src)
+        dst = os.path.join(self.mountdir, dst)
         pass
     def file(self, path)
-        pass
+        path = os.path.join(self.mountdir, path)
+        stdin, stdout, stderr = self.conn.exec_command('file "{}"'.format(path))
+        return stdin.read()
     def getxattrs(self, path)
         pass
+        #path = os.path.join(self.mountdir, path)
+        #stdin, stdout, stderr = self.conn.exec_command('du "{}"'.format(path))
+        #return stdin.read()
     def mv (self, src, dest):
-        pass
+        src = os.path.join(self.mountdir, src)
+        dst = os.path.join(self.mountdir, dst)
+        self.conn.exec_command('mv "{}" "{}"'.format(src, dest))
+    def mkdir (self, path):
+        path = os.path.join(self.mountdir, path)
+        sftp_client = self.conn.open_sftp()
+        sftp_client.mkdir(path)
     def read_file (self, path):
-        pass
+        path = os.path.join(self.mountdir, path)
+        sftp_client = self.conn.open_sftp()
+        f = sftp_client.file(path, mode='r', bufsize=-1)
+        s = f.read()
+        f.close()
+        return s
     def readdir (self, dir):
-        pass
+        path = os.path.join(self.mountdir, path)
+        sftp_client = self.conn.open_sftp()
+        return sftp_client.listdir(path)
     def readlink (self, path):
-        pass
+        path = os.path.join(self.mountdir, path)
+        stdin, stdout, stderr = self.conn.exec_command('readlink "{}"'.format(path))
+        return stdin.read()
     def rename (self, oldpath, newpath):
-        pass
+        return self.mv(oldpath, newpath)
     def rm (self, path):
-        pass
+        path = os.path.join(self.mountdir, path)
+        stdin, stdout, stderr = self.conn.exec_command('rm "{}"'.format(path))
     def rm_rf (self, path):
-        pass
+        path = os.path.join(self.mountdir, path)
+        stdin, stdout, stderr = self.conn.exec_command('rm -rf "{}"'.format(path))
     def rmdir (self, path):
-        pass
+        path = os.path.join(self.mountdir, path)
+        stdin, stdout, stderr = self.conn.exec_command('rmdir "{}"'.format(path))
     def setxattr (self, xattr, val, vallen, path):
         pass
     def write (self, path, content):
@@ -74,8 +121,11 @@ s = pxssh.pxssh()
         
         See also "g.write_append".
         """
-        self._check_not_closed ()
-        r = libguestfsmod.write (self._o, path, content)
+        path = os.path.join(self.mountdir, path)
+        sftp_client = self.conn.open_sftp()
+        f = sftp_client.file(path, mode='w', bufsize=-1)
+        f.write(content)
+        f.close()
         return r
 
     def write_append (self, path, content):
@@ -84,13 +134,11 @@ s = pxssh.pxssh()
         
         See also "g.write".
         """
-        self._check_not_closed ()
-        r = libguestfsmod.write_append (self._o, path, content)
-        return r
-
-    def write_file (self, path, content, size):
-
-#      The external cmp(1) program is used for the comparison.
+        path = os.path.join(self.mountdir, path)
+        sftp_client = self.conn.open_sftp()
+        f = sftp_client.file(path, mode='a', bufsize=-1)
+        f.write(content)
+        f.close()
 
 def get_prepare_disks(db, task_id):
     prepare_disks_source = db.prepare_disks.find_one({'task_id':task_id})['source']
@@ -134,7 +182,9 @@ def publish_snapshot(d):
     else:
         url = settings.STUDENT_DISK_URL + d
     return url
-  
+
+
+ 
 if __name__ == '__main__':
     if len(sys.argv) != 1:
         print "Usage: {0}"