462 lines
12 KiB
PHP
462 lines
12 KiB
PHP
<?php
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class Import_Export extends Plugin implements IHandler {
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private $link;
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private $host;
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function init($host) {
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$this->link = $host->get_link();
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$this->host = $host;
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$host->add_hook($host::HOOK_PREFS_TAB, $this);
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$host->add_command("xml-import", "import articles from XML", $this, ":", "FILE");
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}
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function about() {
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return array(1.0,
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"Imports and exports user data using neutral XML format",
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"fox");
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}
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function xml_import($args) {
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$filename = $args['xml_import'];
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if (!is_file($filename)) {
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print "error: input filename ($filename) doesn't exist.\n";
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return;
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}
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_debug("please enter your username:");
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$username = db_escape_string($this->link, trim(read_stdin()));
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_debug("importing $filename for user $username...\n");
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$result = db_query($this->link, "SELECT id FROM ttrss_users WHERE login = '$username'");
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if (db_num_rows($result) == 0) {
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print "error: could not find user $username.\n";
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return;
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}
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$owner_uid = db_fetch_result($result, 0, "id");
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$this->perform_data_import($this->link, $filename, $owner_uid);
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}
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function save() {
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$example_value = db_escape_string($this->link, $_POST["example_value"]);
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echo "Value set to $example_value (not really)";
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}
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function get_prefs_js() {
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return file_get_contents(dirname(__FILE__) . "/import_export.js");
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}
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function hook_prefs_tab($args) {
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if ($args != "prefFeeds") return;
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print "<div dojoType=\"dijit.layout.AccordionPane\" title=\"".__('Import and export')."\">";
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print "<h3>" . __("Article archive") . "</h3>";
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print "<p>" . __("You can export and import your Starred and Archived articles for safekeeping or when migrating between tt-rss instances.") . "</p>";
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print "<button dojoType=\"dijit.form.Button\" onclick=\"return exportData()\">".
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__('Export my data')."</button> ";
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print "<hr>";
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print "<iframe id=\"data_upload_iframe\"
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name=\"data_upload_iframe\" onload=\"dataImportComplete(this)\"
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style=\"width: 400px; height: 100px; display: none;\"></iframe>";
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print "<form name=\"import_form\" style='display : block' target=\"data_upload_iframe\"
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enctype=\"multipart/form-data\" method=\"POST\"
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action=\"backend.php\">
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<input id=\"export_file\" name=\"export_file\" type=\"file\">
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<input type=\"hidden\" name=\"op\" value=\"pluginhandler\">
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<input type=\"hidden\" name=\"plugin\" value=\"import_export\">
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<input type=\"hidden\" name=\"method\" value=\"dataimport\">
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<button dojoType=\"dijit.form.Button\" onclick=\"return importData();\" type=\"submit\">" .
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__('Import') . "</button>";
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print "</form>";
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print "</div>"; # pane
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}
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function csrf_ignore($method) {
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return in_array($method, array("exportget"));
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}
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function before($method) {
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return $_SESSION["uid"] != false;
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}
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function after() {
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return true;
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}
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function exportget() {
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$exportname = CACHE_DIR . "/export/" .
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sha1($_SESSION['uid'] . $_SESSION['login']) . ".xml";
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if (file_exists($exportname)) {
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header("Content-type: text/xml");
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if (function_exists('gzencode')) {
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header("Content-Disposition: attachment; filename=TinyTinyRSS_exported.xml.gz");
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echo gzencode(file_get_contents($exportname));
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} else {
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header("Content-Disposition: attachment; filename=TinyTinyRSS_exported.xml");
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echo file_get_contents($exportname);
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}
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} else {
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echo "File not found.";
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}
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}
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function exportrun() {
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$offset = (int) db_escape_string($this->link, $_REQUEST['offset']);
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$exported = 0;
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$limit = 250;
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if ($offset < 10000 && is_writable(CACHE_DIR . "/export")) {
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$result = db_query($this->link, "SELECT
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ttrss_entries.guid,
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ttrss_entries.title,
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content,
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marked,
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published,
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score,
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note,
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link,
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tag_cache,
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label_cache,
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ttrss_feeds.title AS feed_title,
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ttrss_feeds.feed_url AS feed_url,
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ttrss_entries.updated
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FROM
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ttrss_user_entries LEFT JOIN ttrss_feeds ON (ttrss_feeds.id = feed_id),
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ttrss_entries
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WHERE
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(marked = true OR feed_id IS NULL) AND
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ref_id = ttrss_entries.id AND
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ttrss_user_entries.owner_uid = " . $_SESSION['uid'] . "
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ORDER BY ttrss_entries.id LIMIT $limit OFFSET $offset");
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$exportname = sha1($_SESSION['uid'] . $_SESSION['login']);
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if ($offset == 0) {
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$fp = fopen(CACHE_DIR . "/export/$exportname.xml", "w");
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fputs($fp, "<articles schema-version=\"".SCHEMA_VERSION."\">");
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} else {
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$fp = fopen(CACHE_DIR . "/export/$exportname.xml", "a");
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}
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if ($fp) {
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while ($line = db_fetch_assoc($result)) {
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fputs($fp, "<article>");
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foreach ($line as $k => $v) {
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$v = str_replace("]]>", "]]]]><![CDATA[>", $v);
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fputs($fp, "<$k><![CDATA[$v]]></$k>");
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}
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fputs($fp, "</article>");
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}
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$exported = db_num_rows($result);
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if ($exported < $limit && $exported > 0) {
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fputs($fp, "</articles>");
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}
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fclose($fp);
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}
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}
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print json_encode(array("exported" => $exported));
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}
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function perform_data_import($link, $filename, $owner_uid) {
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$num_imported = 0;
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$num_processed = 0;
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$num_feeds_created = 0;
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$doc = @DOMDocument::load($filename);
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if (!$doc) {
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$contents = file_get_contents($filename);
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if ($contents) {
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$data = @gzuncompress($contents);
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}
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if (!$data) {
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$data = @gzdecode($contents);
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}
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if ($data)
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$doc = DOMDocument::loadXML($data);
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}
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if ($doc) {
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$xpath = new DOMXpath($doc);
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$container = $doc->firstChild;
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if ($container && $container->hasAttribute('schema-version')) {
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$schema_version = $container->getAttribute('schema-version');
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if ($schema_version != SCHEMA_VERSION) {
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print "<p>" .__("Could not import: incorrect schema version.") . "</p>";
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return;
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}
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} else {
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print "<p>" . __("Could not import: unrecognized document format.") . "</p>";
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return;
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}
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$articles = $xpath->query("//article");
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foreach ($articles as $article_node) {
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if ($article_node->childNodes) {
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$ref_id = 0;
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$article = array();
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foreach ($article_node->childNodes as $child) {
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if ($child->nodeName != 'label_cache')
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$article[$child->nodeName] = db_escape_string($this->link, $child->nodeValue);
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else
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$article[$child->nodeName] = $child->nodeValue;
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}
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//print_r($article);
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if ($article['guid']) {
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++$num_processed;
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//db_query($link, "BEGIN");
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//print 'GUID:' . $article['guid'] . "\n";
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$result = db_query($link, "SELECT id FROM ttrss_entries
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WHERE guid = '".$article['guid']."'");
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if (db_num_rows($result) == 0) {
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$result = db_query($link,
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"INSERT INTO ttrss_entries
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(title,
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guid,
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link,
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updated,
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content,
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content_hash,
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no_orig_date,
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date_updated,
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date_entered,
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comments,
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num_comments,
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author)
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VALUES
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('".$article['title']."',
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'".$article['guid']."',
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'".$article['link']."',
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'".$article['updated']."',
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'".$article['content']."',
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'".sha1($article['content'])."',
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false,
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NOW(),
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NOW(),
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'',
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'0',
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'')");
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$result = db_query($link, "SELECT id FROM ttrss_entries
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WHERE guid = '".$article['guid']."'");
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if (db_num_rows($result) != 0) {
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$ref_id = db_fetch_result($result, 0, "id");
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}
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} else {
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$ref_id = db_fetch_result($result, 0, "id");
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}
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//print "Got ref ID: $ref_id\n";
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if ($ref_id) {
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$feed_url = $article['feed_url'];
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$feed_title = $article['feed_title'];
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$feed = 'NULL';
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if ($feed_url && $feed_title) {
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$result = db_query($link, "SELECT id FROM ttrss_feeds
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WHERE feed_url = '$feed_url' AND owner_uid = '$owner_uid'");
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if (db_num_rows($result) != 0) {
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$feed = db_fetch_result($result, 0, "id");
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} else {
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// try autocreating feed in Uncategorized...
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$result = db_query($link, "INSERT INTO ttrss_feeds (owner_uid,
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feed_url, title) VALUES ($owner_uid, '$feed_url', '$feed_title')");
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$result = db_query($link, "SELECT id FROM ttrss_feeds
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WHERE feed_url = '$feed_url' AND owner_uid = '$owner_uid'");
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if (db_num_rows($result) != 0) {
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++$num_feeds_created;
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$feed = db_fetch_result($result, 0, "id");
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}
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}
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}
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if ($feed != 'NULL')
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$feed_qpart = "feed_id = $feed";
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else
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$feed_qpart = "feed_id IS NULL";
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//print "$ref_id / $feed / " . $article['title'] . "\n";
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$result = db_query($link, "SELECT int_id FROM ttrss_user_entries
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WHERE ref_id = '$ref_id' AND owner_uid = '$owner_uid' AND $feed_qpart");
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if (db_num_rows($result) == 0) {
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$marked = bool_to_sql_bool(sql_bool_to_bool($article['marked']));
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$published = bool_to_sql_bool(sql_bool_to_bool($article['published']));
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$score = (int) $article['score'];
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$tag_cache = $article['tag_cache'];
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$label_cache = db_escape_string($this->link, $article['label_cache']);
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$note = $article['note'];
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//print "Importing " . $article['title'] . "<br/>";
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++$num_imported;
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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, last_read, marked,
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published, score, tag_cache, label_cache, uuid, note)
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VALUES ($ref_id, $owner_uid, $feed, false,
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NULL, $marked, $published, $score, '$tag_cache',
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'$label_cache', '', '$note')");
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$label_cache = json_decode($label_cache, true);
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if (is_array($label_cache) && $label_cache["no-labels"] != 1) {
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foreach ($label_cache as $label) {
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label_create($link, $label[1],
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$label[2], $label[3], $owner_uid);
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label_add_article($link, $ref_id, $label[1], $owner_uid);
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}
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}
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//db_query($link, "COMMIT");
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}
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}
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}
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}
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}
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print "<p>" .
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__("Finished: ").
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vsprintf(ngettext("%d article processed, ", "%d articles processed, ", $num_processed), $num_processed).
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vsprintf(ngettext("%d imported, ", "%d imported, ", $num_imported), $num_imported).
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vsprintf(ngettext("%d feed created.", "%d feeds created.", $num_feeds_created), $num_feeds_created).
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"</p>";
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} else {
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print "<p>" . __("Could not load XML document.") . "</p>";
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}
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}
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function exportData() {
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print "<p style='text-align : center' id='export_status_message'>You need to prepare exported data first by clicking the button below.</p>";
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print "<div align='center'>";
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print "<button dojoType=\"dijit.form.Button\"
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onclick=\"dijit.byId('dataExportDlg').prepare()\">".
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__('Prepare data')."</button>";
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print "<button dojoType=\"dijit.form.Button\"
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onclick=\"dijit.byId('dataExportDlg').hide()\">".
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__('Close this window')."</button>";
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print "</div>";
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}
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function dataImport() {
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header("Content-Type: text/html"); # required for iframe
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print "<div style='text-align : center'>";
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if ($_FILES['export_file']['error'] != 0) {
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print_error(T_sprintf("Upload failed with error code %d",
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$_FILES['export_file']['error']));
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return;
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}
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$tmp_file = false;
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if (is_uploaded_file($_FILES['export_file']['tmp_name'])) {
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$tmp_file = tempnam(CACHE_DIR . '/upload', 'export');
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$result = move_uploaded_file($_FILES['export_file']['tmp_name'],
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$tmp_file);
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if (!$result) {
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print_error(__("Unable to move uploaded file."));
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return;
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}
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} else {
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print_error(__('Error: please upload OPML file.'));
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return;
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}
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if (is_file($tmp_file)) {
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$this->perform_data_import($this->link, $tmp_file, $_SESSION['uid']);
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unlink($tmp_file);
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} else {
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print_error(__('No file uploaded.'));
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return;
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}
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print "<button dojoType=\"dijit.form.Button\"
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onclick=\"dijit.byId('dataImportDlg').hide()\">".
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__('Close this window')."</button>";
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print "</div>";
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}
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}
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?>
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