// permissions for the *anonymous* user (userID = 0) here
$anonymousUserPermissionsArray = getPermissions(0, "user", false);
// function 'getPermissions()' is defined in 'include.inc.php'
if (isset($_SESSION['user_permissions']) and $anonymousUserPermissionsArray["allow_cite"] == "yes") {
// NOTE: - as an alternative to the below code block, we could also fetch citations via an AJAX event and let the JavaScript functions in file 'javascript/show.js' ' write the results into the '<div id="includerefs">' section;
// to do so:
// 1. pass the JavaScript file 'javascript/show.js' as the 6th parameter to the 'displayHTMLhead' function (see above)
// 2. call JavaScript function 'showRefs()' via an 'onload' event in the body tag of function 'displayHTMLhead()' in 'includes/header.inc.php': onload="showRefs('records=all&showRows=5&citeOrder=creation-date')"
// TODO: function 'displayHTMLhead()' should get modified so that it only calls the 'onload' event if necessary/requested
//
// - the above alternative works within the user's current session, i.e. the links section will contain any edit or file links (if the user has appropriate permissions);
// however, the below method (which uses function 'fetchDataFromURL()') does NOT maintain the user's current session (and adding the user's current PHPSESSID doesn't seem to work ?:-/)
// Prepare a query that will fetch a HTML table with the most recently added publications (as formatted citations):
$recentAdditionsQueryURL = $databaseBaseURL . "show.php?records=all&submit=Cite&showRows=5&citeOrder=creation-date&client=inc-refbase-1.0&wrapResults=0";
// variable '$databaseBaseURL' is defined in 'ini.inc.php'
$recentAdditionsResultTable = fetchDataFromURL($recentAdditionsQueryURL);
// function 'fetchDataFromURL()' is defined in 'include.inc.php'
}
if (!empty($recentAdditionsResultTable)) {
echo $recentAdditionsResultTable;
} else {
?>
<a href="show.php?records=all&citeOrder=creation-date"><?php
echo $loc["ShowAll"];
?>
</a><?php
}
?>
</div>
function fetchDataFromCrossRef($itemArray, $sourceFormat = "CrossRef XML")
{
global $errors;
global $crossRefReqDat;
$sourceText = "";
if (!empty($itemArray)) {
// Remove any duplicate IDs:
$itemArray = array_unique($itemArray);
// Define response format:
// if (preg_match("/^CrossRef XML$/i", $sourceFormat))
// $fetchType = "unixref";
// else // by default, we'll use the "unixref XML" format
$fetchType = "unixref";
foreach ($itemArray as $item) {
// Build query URL:
$sourceURL = "http://www.crossref.org/openurl/" . "?noredirect=true" . "&format=" . $fetchType;
if (!empty($crossRefReqDat)) {
$sourceURL .= "&pid=" . rawurlencode($crossRefReqDat);
}
if (preg_match("#^10\\.\\d{4}/\\S+\$#", $item)) {
// '$item' is a DOI
$sourceURL .= "&id=" . rawurlencode("doi:" . $item);
} else {
// otherwise we assume a full OpenURL context object // TODO: verify OpenURL!?
$sourceURL .= "&" . $item;
}
// Perform query:
$sourceText .= fetchDataFromURL($sourceURL);
// function 'fetchDataFromURL()' is defined in 'include.inc.php'
}
}
return array($errors, $sourceText);
}
