| 1 | # -*- coding: utf-8 -*-
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| 2 | # $Id: testboxconnection.py 56295 2015-06-09 14:29:55Z vboxsync $
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| 3 |
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| 4 | """
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| 5 | TestBox Script - HTTP Connection Handling.
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| 6 | """
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| 7 |
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| 8 | __copyright__ = \
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| 9 | """
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| 10 | Copyright (C) 2012-2015 Oracle Corporation
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| 11 |
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| 12 | This file is part of VirtualBox Open Source Edition (OSE), as
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| 13 | available from http://www.virtualbox.org. This file is free software;
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| 14 | you can redistribute it and/or modify it under the terms of the GNU
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| 15 | General Public License (GPL) as published by the Free Software
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| 16 | Foundation, in version 2 as it comes in the "COPYING" file of the
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| 17 | VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 18 | hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 19 |
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| 20 | The contents of this file may alternatively be used under the terms
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| 21 | of the Common Development and Distribution License Version 1.0
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| 22 | (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 23 | VirtualBox OSE distribution, in which case the provisions of the
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| 24 | CDDL are applicable instead of those of the GPL.
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| 25 |
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| 26 | You may elect to license modified versions of this file under the
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| 27 | terms and conditions of either the GPL or the CDDL or both.
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| 28 | """
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| 29 | __version__ = "$Revision: 56295 $"
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| 30 |
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| 31 |
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| 32 | # Standard python imports.
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| 33 | import httplib
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| 34 | import urllib
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| 35 | import urlparse
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| 36 | import sys
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| 37 |
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| 38 | # Validation Kit imports.
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| 39 | from common import constants
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| 40 | from common import utils
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| 41 | import testboxcommons
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| 42 |
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| 43 |
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| 44 |
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| 45 | class TestBoxResponse(object):
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| 46 | """
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| 47 | Response object return by TestBoxConnection.request().
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| 48 | """
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| 49 | def __init__(self, oResponse):
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| 50 | """
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| 51 | Convert the HTTPResponse to a dictionary, raising TestBoxException on
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| 52 | malformed response.
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| 53 | """
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| 54 | if oResponse is not None:
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| 55 | # Read the whole response (so we can log it).
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| 56 | sBody = oResponse.read();
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| 57 |
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| 58 | # Check the content type.
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| 59 | sContentType = oResponse.getheader('Content-Type');
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| 60 | if sContentType is None or sContentType != 'application/x-www-form-urlencoded; charset=utf-8':
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| 61 | testboxcommons.log('SERVER RESPONSE: Content-Type: %s' % (sContentType,));
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| 62 | testboxcommons.log('SERVER RESPONSE: %s' % (sBody.rstrip(),))
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| 63 | raise testboxcommons.TestBoxException('Invalid server response type: "%s"' % (sContentType,));
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| 64 |
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| 65 | # Parse the body (this should be the exact reverse of what
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| 66 | # TestBoxConnection.postRequestRaw).
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| 67 | ##testboxcommons.log2('SERVER RESPONSE: "%s"' % (sBody,))
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| 68 | self._dResponse = urlparse.parse_qs(sBody, strict_parsing=True);
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| 69 |
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| 70 | # Convert the dictionary from 'field:values' to 'field:value'. Fail
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| 71 | # if a field has more than one value (i.e. given more than once).
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| 72 | for sField in self._dResponse:
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| 73 | if len(self._dResponse[sField]) != 1:
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| 74 | raise testboxcommons.TestBoxException('The field "%s" appears more than once in the server response' \
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| 75 | % (sField,));
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| 76 | self._dResponse[sField] = self._dResponse[sField][0]
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| 77 | else:
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| 78 | # Special case, dummy response object.
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| 79 | self._dResponse = dict();
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| 80 | # Done.
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| 81 |
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| 82 | def getStringChecked(self, sField):
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| 83 | """
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| 84 | Check if specified field is present in server response and returns it as string.
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| 85 | If not present, a fitting exception will be raised.
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| 86 | """
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| 87 | if not sField in self._dResponse:
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| 88 | raise testboxcommons.TestBoxException('Required data (' + str(sField) + ') was not found in server response');
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| 89 | return str(self._dResponse[sField]).strip();
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| 90 |
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| 91 | def getIntChecked(self, sField, iMin = None, iMax = None):
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| 92 | """
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| 93 | Check if specified field is present in server response and returns it as integer.
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| 94 | If not present, a fitting exception will be raised.
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| 95 |
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| 96 | The iMin and iMax values are inclusive.
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| 97 | """
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| 98 | if not sField in self._dResponse:
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| 99 | raise testboxcommons.TestBoxException('Required data (' + str(sField) + ') was not found in server response')
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| 100 | try:
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| 101 | iValue = int(self._dResponse[sField]);
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| 102 | except:
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| 103 | raise testboxcommons.TestBoxException('Malformed integer field %s: "%s"' % (sField, self._dResponse[sField]));
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| 104 |
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| 105 | if (iMin is not None and iValue < iMin) \
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| 106 | or (iMax is not None and iValue > iMax):
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| 107 | raise testboxcommons.TestBoxException('Value (%d) of field %s is out of range [%s..%s]' \
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| 108 | % (iValue, sField, iMin, iMax));
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| 109 | return iValue;
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| 110 |
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| 111 | def checkParameterCount(self, cExpected):
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| 112 | """
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| 113 | Checks the parameter count, raise TestBoxException if it doesn't meet
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| 114 | the expectations.
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| 115 | """
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| 116 | if len(self._dResponse) != cExpected:
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| 117 | raise testboxcommons.TestBoxException('Expected %d parameters, server sent %d' % (cExpected, len(self._dResponse)));
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| 118 | return True;
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| 119 |
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| 120 | def toString(self):
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| 121 | """
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| 122 | Convers the response to a string (for debugging purposes).
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| 123 | """
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| 124 | return str(self._dResponse);
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| 125 |
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| 126 |
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| 127 | class TestBoxConnection(object):
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| 128 | """
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| 129 | Wrapper around HTTPConnection.
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| 130 | """
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| 131 |
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| 132 | def __init__(self, sTestManagerUrl, sTestBoxId, sTestBoxUuid, fLongTimeout = False):
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| 133 | """
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| 134 | Constructor.
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| 135 | """
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| 136 | self._oConn = None;
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| 137 | self._oParsedUrl = urlparse.urlparse(sTestManagerUrl);
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| 138 | self._sTestBoxId = sTestBoxId;
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| 139 | self._sTestBoxUuid = sTestBoxUuid;
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| 140 |
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| 141 | #
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| 142 | # Connect to it - may raise exception on failure.
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| 143 | # When connecting we're using a 15 second timeout, we increase it later.
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| 144 | #
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| 145 | if self._oParsedUrl.scheme == 'https': # pylint: disable=E1101
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| 146 | fnCtor = httplib.HTTPSConnection;
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| 147 | else:
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| 148 | fnCtor = httplib.HTTPConnection;
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| 149 | if sys.version_info[0] >= 3 \
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| 150 | or (sys.version_info[0] == 2 and sys.version_info[1] >= 6):
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| 151 |
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| 152 | self._oConn = fnCtor(self._oParsedUrl.hostname, timeout=15);
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| 153 | else:
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| 154 | self._oConn = fnCtor(self._oParsedUrl.hostname);
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| 155 |
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| 156 | if self._oConn.sock is None:
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| 157 | self._oConn.connect();
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| 158 |
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| 159 | #
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| 160 | # Increase the timeout for the non-connect operations.
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| 161 | #
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| 162 | try:
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| 163 | self._oConn.sock.settimeout(5*60 if fLongTimeout else 1 * 60);
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| 164 | except:
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| 165 | pass;
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| 166 |
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| 167 | ##testboxcommons.log2('hostname=%s timeout=%u' % (self._oParsedUrl.hostname, self._oConn.sock.gettimeout()));
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| 168 |
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| 169 | def __del__(self):
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| 170 | """ Makes sure the connection is really closed on destruction """
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| 171 | self.close()
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| 172 |
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| 173 | def close(self):
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| 174 | """ Closes the connection """
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| 175 | if self._oConn is not None:
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| 176 | self._oConn.close();
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| 177 | self._oConn = None;
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| 178 |
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| 179 | def postRequestRaw(self, sAction, dParams):
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| 180 | """
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| 181 | Posts a request to the test manager and gets the response. The dParams
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| 182 | argument is a dictionary of unencoded key-value pairs (will be
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| 183 | modified).
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| 184 | Raises exception on failure.
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| 185 | """
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| 186 | dHeader = \
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| 187 | {
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| 188 | 'Content-Type': 'application/x-www-form-urlencoded; charset=utf-8',
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| 189 | 'User-Agent': 'TestBoxScript/%s.0 (%s, %s)' % (__version__, utils.getHostOs(), utils.getHostArch()),
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| 190 | 'Accept': 'text/plain,application/x-www-form-urlencoded',
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| 191 | 'Accept-Encoding': 'identity',
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| 192 | 'Cache-Control': 'max-age=0',
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| 193 | 'Connection': 'keep-alive',
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| 194 | };
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| 195 | sServerPath = '/%s/testboxdisp.py' % (self._oParsedUrl.path.strip('/'),); # pylint: disable=E1101
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| 196 | dParams[constants.tbreq.ALL_PARAM_ACTION] = sAction;
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| 197 | sBody = urllib.urlencode(dParams);
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| 198 | ##testboxcommons.log2('sServerPath=%s' % (sServerPath,));
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| 199 | try:
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| 200 | self._oConn.request('POST', sServerPath, sBody, dHeader);
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| 201 | oResponse = self._oConn.getresponse();
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| 202 | oResponse2 = TestBoxResponse(oResponse);
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| 203 | except:
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| 204 | testboxcommons.log2Xcpt();
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| 205 | raise
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| 206 | return oResponse2;
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| 207 |
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| 208 | def postRequest(self, sAction, dParams = None):
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| 209 | """
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| 210 | Posts a request to the test manager, prepending the testbox ID and
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| 211 | UUID to the arguments, and gets the response. The dParams argument is a
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| 212 | is a dictionary of unencoded key-value pairs (will be modified).
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| 213 | Raises exception on failure.
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| 214 | """
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| 215 | if dParams is None:
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| 216 | dParams = dict();
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| 217 | dParams[constants.tbreq.ALL_PARAM_TESTBOX_ID] = self._sTestBoxId;
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| 218 | dParams[constants.tbreq.ALL_PARAM_TESTBOX_UUID] = self._sTestBoxUuid;
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| 219 | return self.postRequestRaw(sAction, dParams);
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| 220 |
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| 221 | def sendReply(self, sReplyAction, sCmdName):
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| 222 | """
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| 223 | Sends a reply to a test manager command.
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| 224 | Raises exception on failure.
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| 225 | """
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| 226 | return self.postRequest(sReplyAction, { constants.tbreq.COMMAND_ACK_PARAM_CMD_NAME: sCmdName });
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| 227 |
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| 228 | def sendReplyAndClose(self, sReplyAction, sCmdName):
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| 229 | """
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| 230 | Sends a reply to a test manager command and closes the connection.
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| 231 | Raises exception on failure.
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| 232 | """
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| 233 | self.sendReply(sReplyAction, sCmdName);
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| 234 | self.close();
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| 235 | return True;
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| 236 |
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| 237 | def sendAckAndClose(self, sCmdName):
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| 238 | """
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| 239 | Acks a command and closes the connection to the test manager.
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| 240 | Raises exception on failure.
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| 241 | """
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| 242 | return self.sendReplyAndClose(constants.tbreq.COMMAND_ACK, sCmdName);
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| 243 |
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| 244 | def sendAck(self, sCmdName):
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| 245 | """
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| 246 | Acks a command.
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| 247 | Raises exception on failure.
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| 248 | """
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| 249 | return self.sendReply(constants.tbreq.COMMAND_ACK, sCmdName);
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| 250 |
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| 251 | @staticmethod
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| 252 | def sendSignOn(sTestManagerUrl, dParams):
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| 253 | """
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| 254 | Sends a sign-on request to the server, returns the response (TestBoxResponse).
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| 255 | No exceptions will be raised.
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| 256 | """
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| 257 | oConnection = None;
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| 258 | try:
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| 259 | oConnection = TestBoxConnection(sTestManagerUrl, None, None);
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| 260 | return oConnection.postRequestRaw(constants.tbreq.SIGNON, dParams);
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| 261 | except:
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| 262 | testboxcommons.log2Xcpt();
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| 263 | if oConnection is not None: # Be kind to apache.
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| 264 | try: oConnection.close();
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| 265 | except: pass;
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| 266 |
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| 267 | return TestBoxResponse(None);
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| 268 |
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| 269 | @staticmethod
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| 270 | def requestCommandWithConnection(sTestManagerUrl, sTestBoxId, sTestBoxUuid, fBusy):
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| 271 | """
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| 272 | Queries the test manager for a command and returns its respons + an open
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| 273 | connection for acking/nack the command (and maybe more).
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| 274 |
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| 275 | No exceptions will be raised. On failure (None, None) will be returned.
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| 276 | """
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| 277 | oConnection = None;
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| 278 | try:
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| 279 | oConnection = TestBoxConnection(sTestManagerUrl, sTestBoxId, sTestBoxUuid, fLongTimeout = not fBusy);
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| 280 | if fBusy:
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| 281 | oResponse = oConnection.postRequest(constants.tbreq.REQUEST_COMMAND_BUSY);
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| 282 | else:
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| 283 | oResponse = oConnection.postRequest(constants.tbreq.REQUEST_COMMAND_IDLE);
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| 284 | return (oResponse, oConnection);
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| 285 | except:
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| 286 | testboxcommons.log2Xcpt();
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| 287 | if oConnection is not None: # Be kind to apache.
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| 288 | try: oConnection.close();
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| 289 | except: pass;
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| 290 | return (None, None);
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| 291 |
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| 292 | def isConnected(self):
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| 293 | """
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| 294 | Checks if we are still connected.
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| 295 | """
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| 296 | return self._oConn is not None;
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