File: index.php

package info (click to toggle)
d-push 2.0-1.1
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 2,928 kB
  • sloc: php: 29,162; sh: 104; makefile: 17
file content (280 lines) | stat: -rw-r--r-- 13,017 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
<?php
/***********************************************
* File      :   index.php
* Project   :   Z-Push
* Descr     :   This is the entry point
*               through which all requests
*               are processed.
*
* Created   :   01.10.2007
*
* Copyright 2007 - 2012 Zarafa Deutschland GmbH
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation with the following additional
* term according to sec. 7:
*
* According to sec. 7 of the GNU Affero General Public License, version 3,
* the terms of the AGPL are supplemented with the following terms:
*
* "Zarafa" is a registered trademark of Zarafa B.V.
* "Z-Push" is a registered trademark of Zarafa Deutschland GmbH
* The licensing of the Program under the AGPL does not imply a trademark license.
* Therefore any rights, title and interest in our trademarks remain entirely with us.
*
* However, if you propagate an unmodified version of the Program you are
* allowed to use the term "Z-Push" to indicate that you distribute the Program.
* Furthermore you may use our trademarks where it is necessary to indicate
* the intended purpose of a product or service provided you use it in accordance
* with honest practices in industrial or commercial matters.
* If you want to propagate modified versions of the Program under the name "Z-Push",
* you may only do so if you have a written permission by Zarafa Deutschland GmbH
* (to acquire a permission please contact Zarafa at trademark@zarafa.com).
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program.  If not, see <http://www.gnu.org/licenses/>.
*
* Consult LICENSE file for details
************************************************/

ob_start(null, 1048576);

include_once('lib/exceptions/exceptions.php');
include_once('lib/utils/utils.php');
include_once('lib/utils/compat.php');
include_once('lib/utils/timezoneutil.php');
include_once('lib/core/zpushdefs.php');
include_once('lib/core/stateobject.php');
include_once('lib/core/interprocessdata.php');
include_once('lib/core/pingtracking.php');
include_once('lib/core/topcollector.php');
include_once('lib/core/loopdetection.php');
include_once('lib/core/asdevice.php');
include_once('lib/core/statemanager.php');
include_once('lib/core/devicemanager.php');
include_once('lib/core/zpush.php');
include_once('lib/core/zlog.php');
include_once('lib/interface/ibackend.php');
include_once('lib/interface/ichanges.php');
include_once('lib/interface/iexportchanges.php');
include_once('lib/interface/iimportchanges.php');
include_once('lib/interface/isearchprovider.php');
include_once('lib/interface/istatemachine.php');
include_once('lib/core/streamer.php');
include_once('lib/core/streamimporter.php');
include_once('lib/core/synccollections.php');
include_once('lib/core/hierarchycache.php');
include_once('lib/core/changesmemorywrapper.php');
include_once('lib/core/syncparameters.php');
include_once('lib/core/bodypreference.php');
include_once('lib/core/contentparameters.php');
include_once('lib/wbxml/wbxmldefs.php');
include_once('lib/wbxml/wbxmldecoder.php');
include_once('lib/wbxml/wbxmlencoder.php');
include_once('lib/syncobjects/syncobject.php');
include_once('lib/syncobjects/syncbasebody.php');
include_once('lib/syncobjects/syncbaseattachment.php');
include_once('lib/syncobjects/syncmailflags.php');
include_once('lib/syncobjects/syncrecurrence.php');
include_once('lib/syncobjects/syncappointment.php');
include_once('lib/syncobjects/syncappointmentexception.php');
include_once('lib/syncobjects/syncattachment.php');
include_once('lib/syncobjects/syncattendee.php');
include_once('lib/syncobjects/syncmeetingrequestrecurrence.php');
include_once('lib/syncobjects/syncmeetingrequest.php');
include_once('lib/syncobjects/syncmail.php');
include_once('lib/syncobjects/syncnote.php');
include_once('lib/syncobjects/synccontact.php');
include_once('lib/syncobjects/syncfolder.php');
include_once('lib/syncobjects/syncprovisioning.php');
include_once('lib/syncobjects/synctaskrecurrence.php');
include_once('lib/syncobjects/synctask.php');
include_once('lib/syncobjects/syncoofmessage.php');
include_once('lib/syncobjects/syncoof.php');
include_once('lib/syncobjects/syncuserinformation.php');
include_once('lib/syncobjects/syncdeviceinformation.php');
include_once('lib/syncobjects/syncdevicepassword.php');
include_once('lib/syncobjects/syncitemoperationsattachment.php');
include_once('lib/syncobjects/syncsendmail.php');
include_once('lib/syncobjects/syncsendmailsource.php');
include_once('lib/default/backend.php');
include_once('lib/default/searchprovider.php');
include_once('lib/request/request.php');
include_once('lib/request/requestprocessor.php');

include_once('config.php');
include_once('version.php');


    // Attempt to set maximum execution time
    ini_set('max_execution_time', SCRIPT_TIMEOUT);
    set_time_limit(SCRIPT_TIMEOUT);

    try {
        // check config & initialize the basics
        ZPush::CheckConfig();
        Request::Initialize();
        ZLog::Initialize();

        ZLog::Write(LOGLEVEL_DEBUG,"-------- Start");
        ZLog::Write(LOGLEVEL_INFO,
                    sprintf("Version='%s' method='%s' from='%s' cmd='%s' getUser='%s' devId='%s' devType='%s'",
                                    @constant('ZPUSH_VERSION'), Request::GetMethod(), Request::GetRemoteAddr(),
                                    Request::GetCommand(), Request::GetGETUser(), Request::GetDeviceID(), Request::GetDeviceType()));

        // Stop here if this is an OPTIONS request
        if (Request::IsMethodOPTIONS())
            throw new NoPostRequestException("Options request", NoPostRequestException::OPTIONS_REQUEST);

        ZPush::CheckAdvancedConfig();

        // Process request headers and look for AS headers
        Request::ProcessHeaders();

        // Check required GET parameters
        if(Request::IsMethodPOST() && (Request::GetCommandCode() === false || !Request::GetGETUser() || !Request::GetDeviceID() || !Request::GetDeviceType()))
            throw new FatalException("Requested the Z-Push URL without the required GET parameters");

        // Load the backend
        $backend = ZPush::GetBackend();

        // always request the authorization header
        if (! Request::AuthenticationInfo())
            throw new AuthenticationRequiredException("Access denied. Please send authorisation information");

        // check the provisioning information
        if (PROVISIONING === true && Request::IsMethodPOST() && ZPush::CommandNeedsProvisioning(Request::GetCommandCode()) &&
            ((Request::WasPolicyKeySent() && Request::GetPolicyKey() == 0) || ZPush::GetDeviceManager()->ProvisioningRequired(Request::GetPolicyKey())) &&
            (LOOSE_PROVISIONING === false ||
            (LOOSE_PROVISIONING === true && Request::WasPolicyKeySent())))
            //TODO for AS 14 send a wbxml response
            throw new ProvisioningRequiredException();

        // most commands require an authenticated user
        if (ZPush::CommandNeedsAuthentication(Request::GetCommandCode()))
            RequestProcessor::Authenticate();

        // Do the actual processing of the request
        if (Request::IsMethodGET())
            throw new NoPostRequestException("This is the Z-Push location and can only be accessed by Microsoft ActiveSync-capable devices", NoPostRequestException::GET_REQUEST);

        // Do the actual request
        header(ZPush::GetServerHeader());

        // announce the supported AS versions (if not already sent to device)
        if (ZPush::GetDeviceManager()->AnnounceASVersion()) {
            $versions = ZPush::GetSupportedProtocolVersions(true);
            ZLog::Write(LOGLEVEL_INFO, sprintf("Announcing latest AS version to device: %s", $versions));
            header("X-MS-RP: ". $versions);
        }

        RequestProcessor::Initialize();
        if(!RequestProcessor::HandleRequest())
            throw new WBXMLException(ZLog::GetWBXMLDebugInfo());

        // stream the data
        $len = ob_get_length();
        $data = ob_get_contents();
        ob_end_clean();

        // log amount of data transferred
        // TODO check $len when streaming more data (e.g. Attachments), as the data will be send chunked
        ZPush::GetDeviceManager()->SentData($len);

        // Unfortunately, even though Z-Push can stream the data to the client
        // with a chunked encoding, using chunked encoding breaks the progress bar
        // on the PDA. So the data is de-chunk here, written a content-length header and
        // data send as a 'normal' packet. If the output packet exceeds 1MB (see ob_start)
        // then it will be sent as a chunked packet anyway because PHP will have to flush
        // the buffer.
        if(!headers_sent())
            header("Content-Length: $len");

        // send vnd.ms-sync.wbxml content type header if there is no content
        // otherwise text/html content type is added which might break some devices
        if ($len == 0)
            header("Content-Type: application/vnd.ms-sync.wbxml");

        print $data;

        // destruct backend after all data is on the stream
        $backend->Logoff();
    }

    catch (NoPostRequestException $nopostex) {
        if ($nopostex->getCode() == NoPostRequestException::OPTIONS_REQUEST) {
            header(ZPush::GetServerHeader());
            header(ZPush::GetSupportedProtocolVersions());
            header(ZPush::GetSupportedCommands());
            ZLog::Write(LOGLEVEL_INFO, $nopostex->getMessage());
        }
        else if ($nopostex->getCode() == NoPostRequestException::GET_REQUEST) {
            if (Request::GetUserAgent())
                ZLog::Write(LOGLEVEL_INFO, sprintf("User-agent: '%s'", Request::GetUserAgent()));
            if (!headers_sent() && $nopostex->showLegalNotice())
                ZPush::PrintZPushLegal('GET not supported', $nopostex->getMessage());
        }
    }

    catch (Exception $ex) {
        if (Request::GetUserAgent())
            ZLog::Write(LOGLEVEL_INFO, sprintf("User-agent: '%s'", Request::GetUserAgent()));
        $exclass = get_class($ex);

        if(!headers_sent()) {
            if ($ex instanceof ZPushException) {
                header('HTTP/1.1 '. $ex->getHTTPCodeString());
                foreach ($ex->getHTTPHeaders() as $h)
                    header($h);
            }
            // something really unexpected happened!
            else
                header('HTTP/1.1 500 Internal Server Error');
        }
        else
            ZLog::Write(LOGLEVEL_FATAL, "Exception: ($exclass) - headers were already sent. Message: ". $ex->getMessage());

        if ($ex instanceof AuthenticationRequiredException) {
            ZPush::PrintZPushLegal($exclass, sprintf('<pre>%s</pre>',$ex->getMessage()));

            // log the failed login attemt e.g. for fail2ban
            if (defined('LOGAUTHFAIL') && LOGAUTHFAIL != false)
                ZLog::Write(LOGLEVEL_WARN, sprintf("IP: %s failed to authenticate user '%s'",  Request::GetRemoteAddr(), Request::GetAuthUser()? Request::GetAuthUser(): Request::GetGETUser() ));
        }

        // This could be a WBXML problem.. try to get the complete request
        else if ($ex instanceof WBXMLException) {
            ZLog::Write(LOGLEVEL_FATAL, "Request could not be processed correctly due to a WBXMLException. Please report this.");
        }

        // Try to output some kind of error information. This is only possible if
        // the output had not started yet. If it has started already, we can't show the user the error, and
        // the device will give its own (useless) error message.
        else if (!($ex instanceof ZPushException) || $ex->showLegalNotice()) {
            $cmdinfo = (Request::GetCommand())? sprintf(" processing command <i>%s</i>", Request::GetCommand()): "";
            $extrace = $ex->getTrace();
            $trace = (!empty($extrace))? "\n\nTrace:\n". print_r($extrace,1):"";
            ZPush::PrintZPushLegal($exclass . $cmdinfo, sprintf('<pre>%s</pre>',$ex->getMessage() . $trace));
        }

        // Announce exception to process loop detection
        if (ZPush::GetDeviceManager(false))
            ZPush::GetDeviceManager()->AnnounceProcessException($ex);

        // Announce exception if the TopCollector if available
        ZPush::GetTopCollector()->AnnounceInformation(get_class($ex), true);
    }

    // save device data if the DeviceManager is available
    if (ZPush::GetDeviceManager(false))
        ZPush::GetDeviceManager()->Save();

    // end gracefully
    ZLog::Write(LOGLEVEL_DEBUG, '-------- End');
?>