xml import/export tools, UPGRADING, update README
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Andrew Dolgov
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3
NEWS
3
NEWS
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v1.1 (Dec xy, 2005)
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Note: there is no update path from 1.0.7, the schema is just too
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different. Sorry about that.
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! Please read UPGRADING for upgrade instructions from version 1.0.7 !
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* Multi-user support (yay!)
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* Per-feed purge preferences (0 means default, negative numbers disable purging)
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2
README
2
README
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Tiny Tiny RSS
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=============
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! Please read UPGRADING for upgrade instructions from version 1.0.7 !
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Web-based news feed aggregator, designed to allow you to read news from
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any location, while feeling as close to a real desktop application as possible.
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= Upgrading from TT-RSS 1.0.7 =
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There is, unfortunately, no direct database schema upgrade script. Starred articles
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and feed subscriptions may be transferred the following way:
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== 1.0.7 ==
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* Export your feed subscriptions to OPML
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* Copy xml-export.php from TT-RSS 1.1 tarball to your 1.0.7 directory and run it. This script exports your starred articles in neutral XML format.
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* Save resulting XML file somewhere
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Unpack and configure TT-RSS 1.1. You may need to remove old tables manualy
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(or choose the different database, etc.)
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== 1.1 ==
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* Import your feeds OPML
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* Run xml-import.php and import your old starred articles
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<?
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/*
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Exports your starred articles in schema-neutral XML format.
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*/
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require_once "config.php";
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require_once "functions.php";
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require_once "db.php";
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define('SCHEMA_VERSION', 1);
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header("Content-Type: application/xml");
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?>
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<xmldb>
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<?
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$link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
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if (!$link) {
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if (DB_TYPE == "mysql") {
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print mysql_error();
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}
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// PG seems to display its own errors just fine by default.
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return;
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}
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if (DB_TYPE == "pgsql") {
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pg_query("set client_encoding = 'utf-8'");
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}
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$result = db_query($link, "SELECT schema_version FROM ttrss_version");
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$schema_version = db_fetch_result($result, 0, "schema_version");
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if ($schema_version != SCHEMA_VERSION) {
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print "Error: database schema is invalid
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(got version $schema_version; expected ".SCHEMA_VERSION.")";
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return;
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}
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print "<schema_version>$schema_version</schema_version>";
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?>
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<articles>
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<?
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$result = db_query($link, "SELECT
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ttrss_entries.title AS title,
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content,
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marked,
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unread,
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updated,
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guid,
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link,
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date_entered,
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last_read,
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comments,
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ttrss_feeds.feed_url AS feed_url,
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ttrss_feeds.title AS feed_title
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FROM
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ttrss_entries,ttrss_feeds
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WHERE
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feed_id = ttrss_feeds.id AND marked = true");
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while ($line = db_fetch_assoc($result)) {
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print "<article>";
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foreach (array_keys($line) as $key) {
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print "<$key><![CDATA[".$line[$key]."]]></$key>";
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}
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print "</article>";
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}
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?>
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</articles>
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</xmldb>
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<?
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require_once "config.php";
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require_once "functions.php";
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require_once "db.php";
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define('SOURCE_SCHEMA_VERSION', 1);
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define('TARGET_SCHEMA_VERSION', 2);
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$link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
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login_sequence($link);
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if (!$link) {
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if (DB_TYPE == "mysql") {
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print mysql_error();
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}
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// PG seems to display its own errors just fine by default.
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return;
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}
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if (DB_TYPE == "pgsql") {
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pg_query("set client_encoding = 'utf-8'");
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}
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$result = db_query($link, "SELECT schema_version FROM ttrss_version");
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$schema_version = db_fetch_result($result, 0, "schema_version");
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if ($schema_version != TARGET_SCHEMA_VERSION) {
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print "Error: database schema is invalid
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(got version $schema_version; expected ".TARGET_SCHEMA_VERSION.")";
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return;
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}
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function import_article($link, $data) {
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print "Processing article " . $data["title"] . "<br>";
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$owner_uid = $_SESSION["uid"];
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db_query($link, "BEGIN");
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$result = db_query($link, "SELECT id FROM ttrss_feeds WHERE feed_url = '".
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$data["feed_url"] . "' AND owner_uid = '$owner_uid'");
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if (db_num_rows($result) == 0) {
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return false;
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}
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$feed_id = db_fetch_result($result, 0, "id");
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$result = db_query($link, "SELECT id FROM ttrss_entries WHERE
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guid = '".$data["guid"]."'");
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if (db_num_rows($result) == 0) {
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print "Not found, adding base entry...<br>";
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$entry_title = $data["title"];
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$entry_guid = $data["guid"];
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$entry_link = $data["link"];
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$updated = $data["updated"];
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$date_entered = $data["date_entered"];
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$entry_content = $data["content"];
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$content_hash = "SHA1:" . sha1(strip_tags($entry_content));
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$entry_comments = $data["comments"];
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$result = db_query($link,
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"INSERT INTO ttrss_entries
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(title,
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guid,
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link,
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updated,
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content,
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content_hash,
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no_orig_date,
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date_entered,
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comments)
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VALUES
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('$entry_title',
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'$entry_guid',
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'$entry_link',
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'$updated',
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'$entry_content',
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'$content_hash',
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false,
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'$date_entered',
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'$entry_comments')");
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}
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$result = db_query($link, "SELECT id FROM ttrss_entries WHERE
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guid = '".$data["guid"]."'");
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if (db_num_rows($result) == 0) { return false; }
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$entry_id = db_fetch_result($result, 0, "id");
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print "Found base ID: $entry_id<br>";
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$result = db_query($link, "SELECT int_id FROM ttrss_user_entries WHERE
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ref_id = '$entry_id'");
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if (db_num_rows($result) == 0) {
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print "User table entry not found, creating...<br>";
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$unread = $data["unread"];
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$marked = $data["marked"];
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$last_read = $data["last_read"];
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if (!$last_read) {
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$last_read_qpart = 'NULL';
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} else {
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$last_read_qpart = "'$last_read'";
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}
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$result = db_query($link,
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"INSERT INTO ttrss_user_entries
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(ref_id, owner_uid, feed_id, unread, marked, last_read)
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VALUES ('$entry_id', '$owner_uid', '$feed_id', '$unread', '$marked',
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$last_read_qpart)");
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} else {
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print "User table entry already exists, nothing to do.<br>";
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}
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db_query($link, "COMMIT");
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}
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?>
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<html>
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<body>
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<? if ($_REQUEST["op"] != "Import") { ?>
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<h1>Import XMLDB (your login is <?= $_SESSION["login"] ?>)</h1>
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<form enctype="multipart/form-data" method="POST" action="xml-import.php">
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File: <input name="xmldb" type="file">
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<input class="button" name="op" type="submit" value="Import">
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</form>
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<? } else {
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print "<h1>Importing data (your login is ".$_SESSION["name"].")</h1>";
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if (is_file($_FILES['xmldb']['tmp_name'])) {
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$dom = domxml_open_file($_FILES['xmldb']['tmp_name']);
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// $dom = domxml_open_file('xmldb.xml');
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if ($dom) {
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$root = $dom->document_element();
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$schema_version = $root->get_elements_by_tagname('schema_version');
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$schema_version = $schema_version[0]->get_content();
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if ($schema_version != SOURCE_SCHEMA_VERSION) {
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die("Incorrect source schema version");
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}
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$articles = $root->get_elements_by_tagname("article");
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foreach ($articles as $article) {
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$child_nodes = $article->child_nodes();
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$article_data = array();
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foreach ($child_nodes as $child) {
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$article_data[$child->tagname()] = $child->get_content();
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}
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import_article($link, $article_data);
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}
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} else {
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print "Error: could not parse document.";
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}
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} else {
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print "<p>Error: please upload XMLDB.</p>";
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}
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} ?>
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</body>
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</html>
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