101 lines
4.1 KiB
Python
101 lines
4.1 KiB
Python
# (c) 2012, Michael DeHaan <michael.dehaan@gmail.com>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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import os
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import pwd
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import random
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import traceback
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import tempfile
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import base64
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import ansible.constants as C
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from ansible import utils
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from ansible import errors
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from ansible import module_common
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from ansible.runner.return_data import ReturnData
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class ActionModule(object):
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def __init__(self, runner):
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self.runner = runner
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def run(self, conn, tmp, module_name, module_args, inject):
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''' handler for fetch operations '''
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# load up options
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options = utils.parse_kv(module_args)
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source = options.get('src', None)
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dest = options.get('dest', None)
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if source is None or dest is None:
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results = dict(failed=True, msg="src and dest are required")
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return ReturnData(conn=conn, result=results)
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# files are saved in dest dir, with a subdir for each host, then the filename
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dest = "%s/%s/%s" % (utils.path_dwim(self.runner.basedir, dest), conn.host, source)
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dest = dest.replace("//","/")
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# calculate md5 sum for the remote file
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remote_md5 = self.runner._remote_md5(conn, tmp, source)
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# use slurp if sudo and permissions are lacking
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remote_data = None
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if remote_md5 in ('1', '2') and self.runner.sudo:
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slurpres = self.runner._execute_module(conn, tmp, 'slurp', 'src=%s' % source, inject=inject)
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if slurpres.is_successful():
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if slurpres.result['encoding'] == 'base64':
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remote_data = base64.b64decode(slurpres.result['content'])
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if remote_data is not None:
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remote_md5 = utils.md5s(remote_data)
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# these don't fail because you may want to transfer a log file that possibly MAY exist
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# but keep going to fetch other log files
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if remote_md5 == '0':
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result = dict(msg="unable to calculate the md5 sum of the remote file", file=source, changed=False)
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return ReturnData(conn=conn, result=result)
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if remote_md5 == '1':
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result = dict(msg="the remote file does not exist, not transferring, ignored", file=source, changed=False)
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return ReturnData(conn=conn, result=result)
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if remote_md5 == '2':
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result = dict(msg="no read permission on remote file, not transferring, ignored", file=source, changed=False)
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return ReturnData(conn=conn, result=result)
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# calculate md5 sum for the local file
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local_md5 = utils.md5(dest)
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if remote_md5 != local_md5:
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# create the containing directories, if needed
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if not os.path.isdir(os.path.dirname(dest)):
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os.makedirs(os.path.dirname(dest))
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# fetch the file and check for changes
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if remote_data is None:
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conn.fetch_file(source, dest)
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else:
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f = open(dest, 'w')
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f.write(remote_data)
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f.close()
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new_md5 = utils.md5(dest)
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if new_md5 != remote_md5:
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result = dict(failed=True, md5sum=new_md5, msg="md5 mismatch", file=source, dest=dest)
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return ReturnData(conn=conn, result=result)
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result = dict(changed=True, md5sum=new_md5, dest=dest)
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return ReturnData(conn=conn, result=result)
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else:
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result = dict(changed=False, md5sum=local_md5, file=source, dest=dest)
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return ReturnData(conn=conn, result=result)
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