basercms /baser/vendors/ga.php

Language PHP Lines 193
MD5 Hash 14d2185f14afbbaeeee531370f1d18a6
Repository https://github.com/hashing/basercms.git View Raw File
  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
<?php

/**
  Copyright 2009 Google Inc. All Rights Reserved.
**/

  // Tracker version.
  define("VERSION", "4.4sh");

  define("COOKIE_NAME", "__utmmobile");

  // The path the cookie will be available to, edit this to use a different
  // cookie path.
  define("COOKIE_PATH", "/");

  // Two years in seconds.
  define("COOKIE_USER_PERSISTENCE", 63072000);

  // 1x1 transparent GIF
  $GIF_DATA = array(
      chr(0x47), chr(0x49), chr(0x46), chr(0x38), chr(0x39), chr(0x61),
      chr(0x01), chr(0x00), chr(0x01), chr(0x00), chr(0x80), chr(0xff),
      chr(0x00), chr(0xff), chr(0xff), chr(0xff), chr(0x00), chr(0x00),
      chr(0x00), chr(0x2c), chr(0x00), chr(0x00), chr(0x00), chr(0x00),
      chr(0x01), chr(0x00), chr(0x01), chr(0x00), chr(0x00), chr(0x02),
      chr(0x02), chr(0x44), chr(0x01), chr(0x00), chr(0x3b)
  );

  // The last octect of the IP address is removed to anonymize the user.
  function getIP($remoteAddress) {
    if (empty($remoteAddress)) {
      return "";
    }

    // Capture the first three octects of the IP address and replace the forth
    // with 0, e.g. 124.455.3.123 becomes 124.455.3.0
    $regex = "/^([^.]+\.[^.]+\.[^.]+\.).*/";
    if (preg_match($regex, $remoteAddress, $matches)) {
      return $matches[1] . "0";
    } else {
      return "";
    }
  }

  // Generate a visitor id for this hit.
  // If there is a visitor id in the cookie, use that, otherwise
  // use the guid if we have one, otherwise use a random number.
  function getVisitorId($guid, $account, $userAgent, $cookie) {

    // If there is a value in the cookie, don't change it.
    if (!empty($cookie)) {
      return $cookie;
    }

    $message = "";
    if (!empty($guid)) {
      // Create the visitor id using the guid.
      $message = $guid . $account;
    } else {
      // otherwise this is a new user, create a new random id.
      $message = $userAgent . uniqid(getRandomNumber(), true);
    }

    $md5String = md5($message);

    return "0x" . substr($md5String, 0, 16);
  }

  // Get a random number string.
  function getRandomNumber() {
    return rand(0, 0x7fffffff);
  }

  // Writes the bytes of a 1x1 transparent gif into the response.
  function writeGifData() {
    global $GIF_DATA;
    header("Content-Type: image/gif");
    header("Cache-Control: " .
           "private, no-cache, no-cache=Set-Cookie, proxy-revalidate");
    header("Pragma: no-cache");
    header("Expires: Wed, 17 Sep 1975 21:32:10 GMT");
    echo join(array(
      chr(0x47), chr(0x49), chr(0x46), chr(0x38), chr(0x39), chr(0x61),
      chr(0x01), chr(0x00), chr(0x01), chr(0x00), chr(0x80), chr(0xff),
      chr(0x00), chr(0xff), chr(0xff), chr(0xff), chr(0x00), chr(0x00),
      chr(0x00), chr(0x2c), chr(0x00), chr(0x00), chr(0x00), chr(0x00),
      chr(0x01), chr(0x00), chr(0x01), chr(0x00), chr(0x00), chr(0x02),
      chr(0x02), chr(0x44), chr(0x01), chr(0x00), chr(0x3b)
  ));
  }

  // Make a tracking request to Google Analytics from this server.
  // Copies the headers from the original request to the new one.
  // If request containg utmdebug parameter, exceptions encountered
  // communicating with Google Analytics are thown.
  function sendRequestToGoogleAnalytics($utmUrl) {
    $options = array(
      "http" => array(
          "method" => "GET",
          "user_agent" => $_SERVER["HTTP_USER_AGENT"],
          "header" => ("Accepts-Language: " . $_SERVER["HTTP_ACCEPT_LANGUAGE"]))
    );
    if (!empty($_GET["utmdebug"])) {
      $data = file_get_contents(
          $utmUrl, false, stream_context_create($options));
    } else {
      $data = @file_get_contents(
          $utmUrl, false, stream_context_create($options));
    }
  }

  // Track a page view, updates all the cookies and campaign tracker,
  // makes a server side request to Google Analytics and writes the transparent
  // gif byte data to the response.
  function trackPageView() {
    $timeStamp = time();
    $domainName = $_SERVER["SERVER_NAME"];
    if (empty($domainName)) {
      $domainName = "";
    }

    // Get the referrer from the utmr parameter, this is the referrer to the
    // page that contains the tracking pixel, not the referrer for tracking
    // pixel.
    $documentReferer = $_GET["utmr"];
    if (empty($documentReferer) && $documentReferer !== "0") {
      $documentReferer = "-";
    } else {
      $documentReferer = urldecode($documentReferer);
    }
    $documentPath = $_GET["utmp"];
    if (empty($documentPath)) {
      $documentPath = "";
    } else {
      $documentPath = urldecode($documentPath);
    }

    $account = $_GET["utmac"];
    $userAgent = $_SERVER["HTTP_USER_AGENT"];
    if (empty($userAgent)) {
      $userAgent = "";
    }

    // Try and get visitor cookie from the request.
    $cookie = @$_COOKIE[COOKIE_NAME];

    $guidHeader = @$_SERVER["HTTP_X_DCMGUID"];
    if (empty($guidHeader)) {
      $guidHeader = @$_SERVER["HTTP_X_UP_SUBNO"];
    }
    if (empty($guidHeader)) {
      $guidHeader = @$_SERVER["HTTP_X_JPHONE_UID"];
    }
    if (empty($guidHeader)) {
      $guidHeader = @$_SERVER["HTTP_X_EM_UID"];
    }

    $visitorId = getVisitorId($guidHeader, $account, $userAgent, $cookie);

    // Always try and add the cookie to the response.
    setrawcookie(
        COOKIE_NAME,
        $visitorId,
        $timeStamp + COOKIE_USER_PERSISTENCE,
        COOKIE_PATH);

    $utmGifLocation = "http://www.google-analytics.com/__utm.gif";

    // Construct the gif hit url.
    $utmUrl = $utmGifLocation . "?" .
        "utmwv=" . VERSION .
        "&utmn=" . getRandomNumber() .
        "&utmhn=" . urlencode($domainName) .
        "&utmr=" . urlencode($documentReferer) .
        "&utmp=" . urlencode($documentPath) .
        "&utmac=" . $account .
        "&utmcc=__utma%3D999.999.999.999.999.1%3B" .
        "&utmvid=" . $visitorId .
        "&utmip=" . getIP($_SERVER["REMOTE_ADDR"]);

    sendRequestToGoogleAnalytics($utmUrl);

    // If the debug parameter is on, add a header to the response that contains
    // the url that was used to contact Google Analytics.
    if (!empty($_GET["utmdebug"])) {
      header("X-GA-MOBILE-URL:" . $utmUrl);
    }
    // Finally write the gif data to the response.
    writeGifData();
  }
?><?php
  trackPageView();
?>
Back to Top