From fc28928f563b85a4489315168f5394c56decb564 Mon Sep 17 00:00:00 2001
From: Sebastian Meyer <sebastian.meyer@opencultureconsulting.com>
Date: Thu, 4 May 2017 16:29:45 +0200
Subject: [PATCH] Removed OAI client and Moodle integration

---
 client.php     |  12 ----
 moodle.php     | 147 -------------------------------------------------
 oai2client.php |  85 ----------------------------
 3 files changed, 244 deletions(-)
 delete mode 100644 client.php
 delete mode 100644 moodle.php
 delete mode 100644 oai2client.php

diff --git a/client.php b/client.php
deleted file mode 100644
index 4fc6c1d..0000000
--- a/client.php
+++ /dev/null
@@ -1,12 +0,0 @@
-<?php
-
-require_once('oai2client.php');
-
-$client = new OAI2Client('http://localhost/~daniel/2moodle/local/oai_pmh/moodle.php');
-
-var_dump($client->Identify());
-var_dump($client->ListMetadataFormats());
-var_dump($client->ListSets());
-var_dump($client->ListIdentifiers(array('metadataPrefix' => 'oai_dc')));
-var_dump($client->ListRecords(array('metadataPrefix' => 'oai_dc')));
-var_dump($client->GetRecord('aaaaa', 'oai_dc'));
diff --git a/moodle.php b/moodle.php
deleted file mode 100644
index 84f801e..0000000
--- a/moodle.php
+++ /dev/null
@@ -1,147 +0,0 @@
-<?php
-
-require_once('oai2server.php');
-
-/**
- * Identifier settings. It needs to have proper values to reflect the settings of the data provider.
- * Is MUST be declared in this order
- *
- * - $identifyResponse['repositoryName'] : compulsory. A human readable name for the repository;
- * - $identifyResponse['baseURL'] : compulsory. The base URL of the repository;
- * - $identifyResponse['protocolVersion'] : compulsory. The version of the OAI-PMH supported by the repository;
- * - $identifyResponse['earliestDatestamp'] : compulsory. A UTCdatetime that is the guaranteed lower limit of all datestamps recording changes, modifications, or deletions in the repository. A repository must not use datestamps lower than the one specified by the content of the earliestDatestamp element. earliestDatestamp must be expressed at the finest granularity supported by the repository.
- * - $identifyResponse['deletedRecord'] : the manner in which the repository supports the notion of deleted records. Legitimate values are no ; transient ; persistent with meanings defined in the section on deletion.
- * - $identifyResponse['granularity'] : the finest harvesting granularity supported by the repository. The legitimate values are YYYY-MM-DD and YYYY-MM-DDThh:mm:ssZ with meanings as defined in ISO8601.
- *
- */
-
-// script must be at moodle/local/oai_pmh
-require_once('../../config.php');
-
-$adminEmail = generate_email_supportuser();
-
-$identifyResponse = array();
-$identifyResponse["repositoryName"] = $SITE->fullname;;
-$identifyResponse["baseURL"] = $CFG->wwwroot.'/local/oai_pmh/moodle.php';
-$identifyResponse["protocolVersion"] = '2.0';
-$identifyResponse['adminEmail'] = $adminEmail->email;
-$identifyResponse["earliestDatestamp"] = '2013-01-01T12:00:00Z';
-$identifyResponse["deletedRecord"] = 'no'; // How your repository handles deletions
-                                           // no:             The repository does not maintain status about deletions.
-                                           //                It MUST NOT reveal a deleted status.
-                                           // persistent:    The repository persistently keeps track about deletions
-                                           //                with no time limit. It MUST consistently reveal the status
-                                           //                of a deleted record over time.
-                                           // transient:   The repository does not guarantee that a list of deletions is
-                                           //                maintained. It MAY reveal a deleted status for records.
-$identifyResponse["granularity"] = 'YYYY-MM-DDThh:mm:ssZ';
-
-if (!isset($uri)) {
-    $uri = 'test.oai_pmh';
-}
-$uri = parse_url($CFG->wwwroot);
-$oai2 = new OAI2Server($uri['host'], $_GET, $identifyResponse,
-    array(
-        'ListMetadataFormats' =>
-        function($identifier = '') {
-            return array('oai_dc' => array('metadataPrefix'=>'oai_dc',
-                                           'schema'=>'http://www.openarchives.org/OAI/2.0/oai_dc.xsd',
-                                           'metadataNamespace'=>'http://www.openarchives.org/OAI/2.0/oai_dc/',
-                                           'record_prefix'=>'dc',
-                                           'record_namespace' => 'http://purl.org/dc/elements/1.1/'));
-        },
-
-        'ListSets' =>
-        function($resumptionToken = '') {
-            return array (array('setSpec' => 'all', 'setName' => 'All files'));
-        },
-
-        'ListRecords' =>
-        function($metadataPrefix, $from = '', $until = '', $set = '', $count = false, $deliveredRecords = 0, $maxItems = 0) {
-            global $DB;
-
-            if ($metadataPrefix != 'oai_dc') {
-                throw new OAI2Exception('noRecordsMatch');
-            }
-
-            $files = array();
-            $fs = get_file_storage();
-            $hashes = $DB->get_records_sql("SELECT DISTINCT pathnamehash as hash FROM files");
-            foreach ($hashes as $h) {
-                if ($file = $fs->get_file_by_hash($h->hash)) {
-                    $files[] = $file;
-                }
-            }
-            if ($count) {
-                return sizeof($files);
-            }
-            if (empty($files)) {
-                throw new OAI2Exception('noRecordsMatch');
-            }
-            $records = array();
-            $now = date('Y-m-d-H:s');
-            foreach ($files as $f) {
-                $filename = $f->get_filename();
-                if (!empty($filename) && ($filename != ' ') && $filename != '.') {
-                    $records[] = array('identifier' => $f->get_contenthash(),
-                                       'datestamp' => $now,
-                                       'set' => 'all',
-                                       'metadata' => array(
-                                            'container_name' => 'oai_dc:dc',
-                                            'container_attributes' => array(
-                                                'xmlns:oai_dc' => "http://www.openarchives.org/OAI/2.0/oai_dc/",
-                                                'xmlns:dc' => "http://purl.org/dc/elements/1.1/",
-                                                'xmlns:xsi' => "http://www.w3.org/2001/XMLSchema-instance",
-                                                'xsi:schemaLocation' =>
-                                                'http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd'
-                                            ),
-                                            'fields' => array(
-                                                'dc:title' => $f->get_filename(),
-                                                'dc:author' => $f->get_author(),
-                                            )
-                                       ));
-                }
-            }
-            return $records;
-        },
-
-        'GetRecord' =>
-        function($identifier, $metadataPrefix) {
-            global $DB;
-
-            if ($metadataPrefix != 'oai_dc') {
-                throw new OAI2Exception('noRecordsMatch');
-            }
-
-            $fs = get_file_storage();
-            $record = $DB->get_record_sql("SELECT id, pathnamehash FROM files WHERE contenthash = '{$identifier}' ORDER BY id LIMIT 1");
-            if (!$file = $fs->get_file_by_hash($record->pathnamehash)) {
-                throw new OAI2Exception('idDoesNotExist');
-            }
-            $now = date('Y-m-d-H:s');
-            return array('identifier' => $file->get_contenthash(),
-                         'datestamp' => $now,
-                         'set' => 'all',
-                         'metadata' => array(
-                             'container_name' => 'oai_dc:dc',
-                             'container_attributes' => array(
-                                  'xmlns:oai_dc' => "http://www.openarchives.org/OAI/2.0/oai_dc/",
-                                  'xmlns:dc' => "http://purl.org/dc/elements/1.1/",
-                                  'xmlns:xsi' => "http://www.w3.org/2001/XMLSchema-instance",
-                                  'xsi:schemaLocation' =>
-                                  'http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd'
-                              ),
-                              'fields' => array(
-                                  'dc:title' => $file->get_filename(),
-                                  'dc:author' => $file->get_author(),
-                              )
-                          ));
-        },
-    )
-);
-
-$response = $oai2->response();
-$response->formatOutput = true;
-$response->preserveWhiteSpace = false;
-header('Content-Type: text/xml');
-echo $response->saveXML();
diff --git a/oai2client.php b/oai2client.php
deleted file mode 100644
index 17cd461..0000000
--- a/oai2client.php
+++ /dev/null
@@ -1,85 +0,0 @@
-<?php
-/**
- * http://www.openarchives.org/OAI/2.0/guidelines-harvester.htm
- * 8. Harvesting all the Metadata from a Repository
- *
- * Proxies, aggregators and other such agents may wish to harvest a complete copy of a repository 
- * including set structure and all metadata formats. One strategy for doing this would be:
- *
- * # Issue an Identify request to find the finest datestamp granularity supported.
- * # Issue a ListMetadataFormats request to obtain a list of all metadataPrefixes supported.
- * # Harvest using ListRecords requests for each metadataPrefix supported. Knowledge of the
- *   datestamp granularity allows for less overlap if granularities finer than a day are supported.
- * # Set structure can be inferred from the setSpec elements in the header blocks of each record
- *   returned (consistency checks are possible).
- * # Items may be reconstructed from the constituent records. Local datestamps must be assigned to
- *   harvested items.
- * # Provenance and other information in <about> blocks may be re-assembled at the item level if it
- *   is the same for all metadata formats harvested. However, this information may be supplied
- *   differently for different metadata formats and may thus need to be store separately for each
- *   metadata format.
- */
-
-class OAI2Client {
-
-    public function __construct($server_base_url) {
-        $this->server_base_url = $server_base_url;
-        require_once('./curl.php');
-        $this->curl = new Curl();
-    }
-
-    public function Identify() {
-        return $this->curl->get($this->server_base_url.'?verb=Identify');
-    }
-
-    public function ListMetadataFormats($identifier = '') {
-        $url = $this->server_base_url.'?verb=ListMetadataFormats';
-        if (!empty($identifier)) {
-            $url .= "&identifier={$identifier}";
-        }
-        return $this->curl->get($url);
-    }
-
-    public function ListSets($resumptionToken = '') {
-        $url = $this->server_base_url.'?verb=ListSets';
-        return $this->curl->get($url);
-    }
-
-    public function ListIdentifiers($options = array()) {
-
-        $options_default = array('from' => null,
-                                 'until' => null,
-                                 'set' => null,
-                                 'resumptionToken' => null,
-                                 'metadataPrefix' => null); // required
-
-        $url = $this->server_base_url.'?verb=ListIdentifiers';
-
-        if (!empty($options['metadataPrefix'])) {
-            $url .= "&metadataPrefix={$options['metadataPrefix']}";
-        }
-        return $this->curl->get($url);
-    }
-
-    public function ListRecords($options = array()) {
-
-        $options_default = array('from' => null,
-                                 'until' => null,
-                                 'set' => null,
-                                 'resumptionToken' => null,
-                                 'metadataPrefix' => null); // required
-
-        $url = $this->server_base_url.'?verb=ListRecords';
-
-        if (!empty($options['metadataPrefix'])) {
-            $url .= "&metadataPrefix={$options['metadataPrefix']}";
-        }
-        return $this->curl->get($url);
-    }
-
-    public function GetRecord($identifier, $metadataPrefix) {
-        $url = $this->server_base_url.'?verb=ListRecords';
-        $url .= "&identifier={$identifier}&metadataPrefix={$metadataPrefix}";
-        return $this->curl->get($url);
-    }
-}