oaipmh-functions.php

<?php

function identify($thisUrl) {
    include('config.php');
    global $config;
    
    echo "<request verb='Identify'>$thisUrl</request>\n";
    echo "<Identify>\n";
    echo " <repositoryName>" . $config['repositoryTitle'] ."</repositoryName>\n";
    echo " <baseURL>$thisUrl</baseURL>\n";
    echo " <protocolVersion>2.0</protocolVersion>\n";
    echo " <adminEmail>" . $config['repositoryEmail'] . "</adminEmail>\n";
    echo " <earliestDatestamp>1970-01-01</earliestDatestamp>\n";
    echo " <deletedRecord>no</deletedRecord>\n";
    echo " <granularity>YYYY-MM-DD</granularity>\n";
    echo "  <description>\n";
    echo "   <rda xmlns='http://www.rd-alliance.org'\n";
    echo "        xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'>\n";
    echo "  <dtr-type>21.T11148/81e3a5aaec9cae71240b</dtr-type>\n";
    echo "  </rda>\n";
    echo " </description>\n";
    echo " </Identify>\n";
}

function getRecord($identifier, $metadataPrefix, $thisUrl, $dcFile) {
    echo "<request verb='$verb' identifier='$identifier' metadataPrefix='$metadataPrefix'>$thisUrl</request>\n";
    echo "<GetRecord>\n";
    echo "<record>\n";
    echo "<header>\n";
    echo "<identifier>$identifier</identifier>\n";
    echo "<datestamp>$date</datestamp>\n";
    echo "<setSpec>gmd</setSpec>\n";
    echo "</header>\n";
    echo "<metadata>\n";
    echo "            <oai_dc:dc\n";
    echo "                xmlns:oai_dc='http://www.openarchives.org/OAI/2.0/oai_dc/'\n";
    echo "                xmlns:dc='http://purl.org/dc/elements/1.1/'\n";
    echo "                xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'\n";
    echo "                xsi:schemaLocation='http://www.openarchives.org/OAI/2.0/oai_dc/ ";
    echo "                http://www.openarchives.org/OAI/2.0/oai_dc.xsd'>\n";

    try {
        if (file_exists($dcFile)) {
            $dublinCore = parse_ini_file($dcFile);
            foreach ($dublinCore as $key => $value) {
                echo "<dc:$key>$value</dc:$key>\n";
            }
        }
    } catch (Exception $e) {
        echo 'Exception: ', $e->getMessage(), "\n";
    }

    echo "</oai_dc:dc>\n";
    echo "</metadata>\n";
    echo "</record>\n";
    echo "</GetRecord>\n";
}

function getMetadataFormats($thisUrl) {
    echo "<request verb='ListMetadataFormats' identifier='$thisUrl'>$thisUrl</request>\n";
    echo "<ListMetadataFormats>\n";
    echo "<metadataFormat>\n";
    echo "<metadataPrefix>oai_dc</metadataPrefix>\n";
    echo "<schema>http://www.openarchives.org/OAI/2.0/oai_dc.xsd</schema>\n";
    echo "<metadataNamespace>http://www.openarchives.org/OAI/2.0/oai_dc/\n";
    echo "</metadataNamespace>\n";
    echo "</metadataFormat>\n";
    echo "</ListMetadataFormats>\n";
}

function getListSets($thisUrl) {
    echo "<request verb='ListSets'>$thisUrl</request>\n";
    echo "<ListSets>\n";
    echo "<set>\n";
    echo "<setSpec>RDA-DFT-Data</setSpec>\n";
    echo "<setName>RDA DFT compliant data</setName>\n";
    echo "<setDescription>\n";
    echo "  <oai_dc:dc \n";
    echo "      xmlns:oai_dc='http://www.openarchives.org/OAI/2.0/oai_dc/' \n";
    echo "      xmlns:dc='http://purl.org/dc/elements/1.1/' \n";
    echo "      xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' \n";
    echo "      xsi:schemaLocation='http://www.openarchives.org/OAI/2.0/oai_dc/ \n";
    echo "      http://www.openarchives.org/OAI/2.0/oai_dc.xsd'>\n";
    echo "      <dc:description>This repository contains data compatible with the RDA DFT definition.\n";
    echo "      </dc:description>\n";
    echo "   </oai_dc:dc>\n";
    echo "</setDescription>\n";

    echo "</set>\n";
    echo "</ListSets>\n";
}

function getListRecords($thisUrl, $from, $set, $metadataPrefix, $onlyHeaders) {
    $path = realpath('data');
    $scriptPath = realpath(dirname(__FILE__));

    $request = "<request verb='ListRecords' ";

    if (isset($from)) {
        $request = $request . " from='$from' ";
    }

    if (isset($set)) {
        $request = $request . " set='$set' ";
    }

    if (isset($metadataPrefix)) {
        $request = $request . " metadataPrefix='$metadataPrefix' ";
    }

    $request = $request . ">$thisUrl</request>\n";

    echo "$request \n";
    echo "<ListRecords>\n";
    try {
        $objects = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path, RecursiveDirectoryIterator::SKIP_DOTS), RecursiveIteratorIterator::CHILD_FIRST);
        foreach ($objects as $name => $object) {
            if (is_dir($name) && file_exists($name . $config['nameDCFile'])) {

                echo "<record>\n";
                $dcFile = $name . $config['nameDCFile'];

                $name = str_replace("/oai.php", '', $thisUrl) . str_replace($scriptPath, "", $name);

                echo "<header>\n";
                echo "<identifier>$name</identifier>\n";
                echo "<datestamp>2002-02-28</datestamp>\n";
                echo "<setSpec>RDA-DFT-Data</setSpec>\n";
                echo "</header>\n";

                if ($onlyHeaders == false) {

                    echo "<metadata>\n";
                    echo "<oai_dc:dc ";
                    echo "xmlns:oai_dc='http://www.openarchives.org/OAI/2.0/oai_dc/' ";
                    echo "xmlns:dc='http://purl.org/dc/elements/1.1/' ";
                    echo "xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' ";
                    echo "xsi:schemaLocation='http://www.openarchives.org/OAI/2.0/oai_dc/ ";
                    echo "http://www.openarchives.org/OAI/2.0/oai_dc.xsd'>\n";

                    $dublinCore = parse_ini_file($dcFile);
                    foreach ($dublinCore as $key => $value) {
                        echo "<dc:$key>$value</dc:$key>\n";
                    }
                    echo "</oai_dc:dc>\n";
                    echo "</metadata>\n";
                }
                echo "</record>\n";
            }
        }
    } catch (Exception $e) {
        echo 'Exception: ', $e->getMessage(), "\n";
    }

    echo "</ListRecords>\n";
}
?>