mirror of
https://gitlab.archlinux.org/archlinux/aurweb.git
synced 2025-02-03 10:43:03 +01:00
0a357a7d44
Add the typeahead implementation we already use for the package search to the merge target text field. Instead of suggesting packages, suggest package base names. Signed-off-by: Lukas Fleischer <archlinux@cryptocrack.de>
432 lines
12 KiB
PHP
432 lines
12 KiB
PHP
<?php
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include_once("aur.inc.php");
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/*
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* This class defines a remote interface for fetching data from the AUR using
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* JSON formatted elements.
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*
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* @package rpc
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* @subpackage classes
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*/
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class AurJSON {
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private $dbh = false;
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private $version = 1;
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private static $exposed_methods = array(
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'search', 'info', 'multiinfo', 'msearch', 'suggest',
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'suggest-pkgbase'
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);
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private static $fields_v1 = array(
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'Packages.ID', 'Packages.Name',
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'PackageBases.ID AS PackageBaseID',
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'PackageBases.Name AS PackageBase', 'Version', 'CategoryID',
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'Description', 'URL', 'NumVotes', 'OutOfDateTS AS OutOfDate',
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'Users.UserName AS Maintainer',
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'SubmittedTS AS FirstSubmitted', 'ModifiedTS AS LastModified',
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'Licenses.Name AS License'
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);
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private static $fields_v2 = array(
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'Packages.ID', 'Packages.Name',
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'PackageBases.ID AS PackageBaseID',
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'PackageBases.Name AS PackageBase', 'Version', 'CategoryID',
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'Description', 'URL', 'NumVotes', 'OutOfDateTS AS OutOfDate',
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'Users.UserName AS Maintainer',
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'SubmittedTS AS FirstSubmitted', 'ModifiedTS AS LastModified'
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);
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private static $numeric_fields = array(
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'ID', 'PackageBaseID', 'CategoryID', 'NumVotes', 'OutOfDate',
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'FirstSubmitted', 'LastModified'
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);
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/*
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* Handles post data, and routes the request.
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*
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* @param string $post_data The post data to parse and handle.
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*
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* @return string The JSON formatted response data.
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*/
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public function handle($http_data) {
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/*
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* Unset global aur.inc.php Pragma header. We want to allow
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* caching of data in proxies, but require validation of data
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* (if-none-match) if possible.
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*/
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header_remove('Pragma');
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/*
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* Overwrite cache-control header set in aur.inc.php to allow
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* caching, but require validation.
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*/
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header('Cache-Control: public, must-revalidate, max-age=0');
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header('Content-Type: application/json, charset=utf-8');
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if (isset($http_data['v'])) {
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$this->version = intval($http_data['v']);
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}
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if ($this->version < 1 || $this->version > 3) {
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return $this->json_error('Invalid version specified.');
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}
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if (!isset($http_data['type']) || !isset($http_data['arg'])) {
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return $this->json_error('No request type/data specified.');
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}
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if (!in_array($http_data['type'], self::$exposed_methods)) {
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return $this->json_error('Incorrect request type specified.');
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}
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$this->dbh = DB::connect();
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$type = str_replace('-', '_', $http_data['type']);
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$json = call_user_func(array(&$this, $type), $http_data['arg']);
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$etag = md5($json);
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header("Etag: \"$etag\"");
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/*
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* Make sure to strip a few things off the
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* if-none-match header. Stripping whitespace may not
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* be required, but removing the quote on the incoming
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* header is required to make the equality test.
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*/
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$if_none_match = isset($_SERVER['HTTP_IF_NONE_MATCH']) ?
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trim($_SERVER['HTTP_IF_NONE_MATCH'], "\t\n\r\" ") : false;
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if ($if_none_match && $if_none_match == $etag) {
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header('HTTP/1.1 304 Not Modified');
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return;
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}
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if (isset($http_data['callback'])) {
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header('content-type: text/javascript');
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return $http_data['callback'] . "({$json})";
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} else {
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header('content-type: application/json');
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return $json;
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}
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}
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/*
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* Returns a JSON formatted error string.
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*
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* @param $msg The error string to return
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*
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* @return mixed A json formatted error response.
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*/
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private function json_error($msg) {
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header('content-type: application/json');
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if ($this->version < 3) {
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return $this->json_results('error', 0, $msg, NULL);
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} elseif ($this->version >= 3) {
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return $this->json_results('error', 0, array(), $msg);
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}
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}
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/*
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* Returns a JSON formatted result data.
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*
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* @param $type The response method type.
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* @param $data The result data to return
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* @param $error An error message to include in the response
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*
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* @return mixed A json formatted result response.
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*/
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private function json_results($type, $count, $data, $error) {
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$json_array = array(
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'version' => $this->version,
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'type' => $type,
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'resultcount' => $count,
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'results' => $data
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);
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if ($error) {
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$json_array['error'] = $error;
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}
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return json_encode($json_array);
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}
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private function get_extended_fields($pkgid) {
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$query = "SELECT DependencyTypes.Name AS Type, " .
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"PackageDepends.DepName AS Name, " .
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"PackageDepends.DepCondition AS Cond " .
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"FROM PackageDepends " .
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"LEFT JOIN DependencyTypes " .
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"ON DependencyTypes.ID = PackageDepends.DepTypeID " .
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"WHERE PackageDepends.PackageID = " . $pkgid . " " .
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"UNION SELECT RelationTypes.Name AS Type, " .
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"PackageRelations.RelName AS Name, " .
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"PackageRelations.RelCondition AS Cond " .
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"FROM PackageRelations " .
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"LEFT JOIN RelationTypes " .
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"ON RelationTypes.ID = PackageRelations.RelTypeID " .
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"WHERE PackageRelations.PackageID = " . $pkgid . " " .
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"UNION SELECT 'groups' AS Type, Groups.Name, '' AS Cond " .
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"FROM Groups INNER JOIN PackageGroups " .
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"ON PackageGroups.PackageID = " . $pkgid . " " .
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"AND PackageGroups.GroupID = Groups.ID " .
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"UNION SELECT 'license' AS Type, Licenses.Name, '' AS Cond " .
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"FROM Licenses INNER JOIN PackageLicenses " .
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"ON PackageLicenses.PackageID = " . $pkgid . " " .
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"AND PackageLicenses.LicenseID = Licenses.ID";
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$result = $this->dbh->query($query);
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if (!$result) {
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return null;
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}
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$type_map = array(
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'depends' => 'Depends',
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'makedepends' => 'MakeDepends',
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'checkdepends' => 'CheckDepends',
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'optdepends' => 'OptDepends',
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'conflicts' => 'Conflicts',
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'provides' => 'Provides',
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'replaces' => 'Replaces',
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'groups' => 'Groups',
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'license' => 'License',
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);
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$data = array();
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while ($row = $result->fetch(PDO::FETCH_ASSOC)) {
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$type = $type_map[$row['Type']];
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$data[$type][] = $row['Name'] . $row['Cond'];
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}
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return $data;
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}
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private function process_query($type, $where_condition) {
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global $MAX_RPC_RESULTS;
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if ($this->version == 1) {
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$fields = implode(',', self::$fields_v1);
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$query = "SELECT {$fields} " .
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"FROM Packages LEFT JOIN PackageBases " .
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"ON PackageBases.ID = Packages.PackageBaseID " .
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"LEFT JOIN Users " .
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"ON PackageBases.MaintainerUID = Users.ID " .
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"LEFT JOIN PackageLicenses " .
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"ON PackageLicenses.PackageID = Packages.ID " .
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"LEFT JOIN Licenses " .
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"ON Licenses.ID = PackageLicenses.LicenseID " .
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"WHERE ${where_condition} " .
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"GROUP BY Packages.ID " .
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"LIMIT $MAX_RPC_RESULTS";
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} elseif ($this->version >= 2) {
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$fields = implode(',', self::$fields_v2);
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$query = "SELECT {$fields} " .
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"FROM Packages LEFT JOIN PackageBases " .
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"ON PackageBases.ID = Packages.PackageBaseID " .
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"LEFT JOIN Users " .
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"ON PackageBases.MaintainerUID = Users.ID " .
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"WHERE ${where_condition} " .
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"LIMIT $MAX_RPC_RESULTS";
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}
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$result = $this->dbh->query($query);
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if ($result) {
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$resultcount = 0;
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$search_data = array();
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while ($row = $result->fetch(PDO::FETCH_ASSOC)) {
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$resultcount++;
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$pkgbase_name = $row['PackageBase'];
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$row['URLPath'] = URL_DIR . substr($pkgbase_name, 0, 2) . "/" . $pkgbase_name . "/" . $pkgbase_name . ".tar.gz";
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/*
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* Unfortunately, mysql_fetch_assoc() returns
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* all fields as strings. We need to coerce
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* numeric values into integers to provide
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* proper data types in the JSON response.
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*/
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foreach (self::$numeric_fields as $field) {
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$row[$field] = intval($row[$field]);
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}
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if ($this->version >= 2 && ($type == 'info' || $type == 'multiinfo')) {
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$row = array_merge($row, $this->get_extended_fields($row['ID']));
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}
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if ($this->version < 3) {
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if ($type == 'info') {
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$search_data = $row;
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break;
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} else {
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array_push($search_data, $row);
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}
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} elseif ($this->version >= 3) {
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array_push($search_data, $row);
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}
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}
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if ($resultcount === $MAX_RPC_RESULTS) {
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return $this->json_error('Too many package results.');
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}
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return $this->json_results($type, $resultcount, $search_data, NULL);
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} else {
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return $this->json_results($type, 0, array(), NULL);
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}
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}
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/*
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* Parse the args to the multiinfo function. We may have a string or an
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* array, so do the appropriate thing. Within the elements, both * package
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* IDs and package names are valid; sort them into the relevant arrays and
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* escape/quote the names.
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*
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* @param $args the arg string or array to parse.
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*
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* @return mixed An array containing 'ids' and 'names'.
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*/
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private function parse_multiinfo_args($args) {
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if (!is_array($args)) {
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$args = array($args);
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}
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$id_args = array();
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$name_args = array();
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foreach ($args as $arg) {
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if (!$arg) {
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continue;
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}
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if (is_numeric($arg)) {
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$id_args[] = intval($arg);
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} else {
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$name_args[] = $this->dbh->quote($arg);
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}
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}
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return array('ids' => $id_args, 'names' => $name_args);
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}
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/*
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* Performs a fulltext mysql search of the package database.
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*
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* @param $keyword_string A string of keywords to search with.
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*
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* @return mixed Returns an array of package matches.
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*/
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private function search($keyword_string) {
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global $MAX_RPC_RESULTS;
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if (strlen($keyword_string) < 2) {
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return $this->json_error('Query arg too small');
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}
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$keyword_string = $this->dbh->quote("%" . addcslashes($keyword_string, '%_') . "%");
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$where_condition = "(Packages.Name LIKE $keyword_string OR ";
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$where_condition .= "Description LIKE $keyword_string)";
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return $this->process_query('search', $where_condition);
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}
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/*
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* Returns the info on a specific package.
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*
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* @param $pqdata The ID or name of the package. Package Query Data.
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*
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* @return mixed Returns an array of value data containing the package data
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*/
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private function info($pqdata) {
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if (is_numeric($pqdata)) {
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$where_condition = "Packages.ID = $pqdata";
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} else {
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$where_condition = "Packages.Name = " . $this->dbh->quote($pqdata);
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}
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return $this->process_query('info', $where_condition);
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}
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/*
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* Returns the info on multiple packages.
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*
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* @param $pqdata A comma-separated list of IDs or names of the packages.
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*
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* @return mixed Returns an array of results containing the package data
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*/
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private function multiinfo($pqdata) {
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$args = $this->parse_multiinfo_args($pqdata);
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$ids = $args['ids'];
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$names = $args['names'];
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if (!$ids && !$names) {
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return $this->json_error('Invalid query arguments');
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}
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$where_condition = "";
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if ($ids) {
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$ids_value = implode(',', $args['ids']);
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$where_condition .= "Packages.ID IN ($ids_value) ";
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}
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if ($ids && $names) {
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$where_condition .= "OR ";
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}
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if ($names) {
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/*
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* Individual names were quoted in
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* parse_multiinfo_args().
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*/
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$names_value = implode(',', $args['names']);
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$where_condition .= "Packages.Name IN ($names_value) ";
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}
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return $this->process_query('multiinfo', $where_condition);
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}
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/*
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* Returns all the packages for a specific maintainer.
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*
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* @param $maintainer The name of the maintainer.
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*
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* @return mixed Returns an array of value data containing the package data
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*/
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private function msearch($maintainer) {
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$maintainer = $this->dbh->quote($maintainer);
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$where_condition = "Users.Username = $maintainer ";
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return $this->process_query('msearch', $where_condition);
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}
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/*
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* Get all package names that start with $search.
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*
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* @param string $search Search string.
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*
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* @return string The JSON formatted response data.
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*/
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private function suggest($search) {
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$query = 'SELECT Name FROM Packages WHERE Name LIKE ' .
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$this->dbh->quote(addcslashes($search, '%_') . '%') .
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' ORDER BY Name ASC LIMIT 20';
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$result = $this->dbh->query($query);
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$result_array = array();
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if ($result) {
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$result_array = $result->fetchAll(PDO::FETCH_COLUMN, 0);
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}
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return json_encode($result_array);
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}
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/*
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* Get all package base names that start with $search.
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*
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* @param string $search Search string.
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*
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* @return string The JSON formatted response data.
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*/
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private function suggest_pkgbase($search) {
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$query = 'SELECT Name FROM PackageBases WHERE Name LIKE ' .
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$this->dbh->quote(addcslashes($search, '%_') . '%') .
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' ORDER BY Name ASC LIMIT 20';
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$result = $this->dbh->query($query);
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$result_array = array();
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if ($result) {
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$result_array = $result->fetchAll(PDO::FETCH_COLUMN, 0);
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}
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return json_encode($result_array);
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}
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}
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