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<?php defined("SYSPATH") or die("No direct script access.");
/**
* Gallery - a web based photo album viewer and editor
* Copyright (C) 2000-2008 Bharat Mediratta
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
*/
class l10n_client_Core {
private static function _server_url() {
return "http://gallery.menalto.com/index.php";
}
static function server_api_key_url() {
return self::_server_url() . "?q=translations/userkey/" .
self::client_token();
}
static function client_token() {
return md5("l10n_client_client_token" . access::private_key());
}
static function api_key($api_key=null) {
if ($api_key !== null) {
module::set_var("core", "l10n_client_key", $api_key);
}
return module::get_var("core", "l10n_client_key", "");
}
static function server_uid($api_key=null) {
$api_key = $api_key == null ? self::api_key() : $api_key;
$parts = explode(":", $api_key);
return empty($parts) ? 0 : $parts[0];
}
private static function _sign($payload, $api_key=null) {
$api_key = $api_key == null ? self::api_key() : $api_key;
return md5($api_key . $payload . self::client_token());
}
static function validate_api_key($api_key) {
$version = "1.0";
$url = self::_server_url() . "?q=translations/status";
$signature = self::_sign($version, $api_key);
list ($response_data, $response_status) = remote::post(
$url, array("version" => $version,
"client_token" => self::client_token(),
"signature" => $signature,
"uid" => self::server_uid($api_key)));
if (!remote::success($response_status)) {
return false;
}
return true;
}
static function fetch_updates() {
$request->locales = array();
$request->messages = new stdClass();
$locales = locale::installed();
foreach ($locales as $locale => $locale_data) {
$request->locales[] = $locale;
}
// @todo Batch requests (max request size)
foreach (Database::instance()
->select("key", "locale", "revision", "translation")
->from("incoming_translations")
->get()
->as_array() as $row) {
if (!isset($request->messages->{$row->key})) {
$request->messages->{$row->key} = 1;
}
if (!empty($row->revision) && !empty($row->translation)) {
if (!is_object($request->messages->{$row->key})) {
$request->messages->{$row->key} = new stdClass();
}
$request->messages->{$row->key}->{$row->locale} = $row->revision;
}
}
// @todo Include messages from outgoing_translations?
$request_data = json_encode($request);
$url = self::_server_url() . "?q=translations/fetch";
list ($response_data, $response_status) = remote::post($url, array("data" => $request_data));
if (!remote::success($response_status)) {
throw new Exception("@todo TRANSLATIONS_FETCH_REQUEST_FAILED " . $response_status);
}
if (empty($response_data)) {
log::info("translations", "Translations fetch request resulted in an empty response");
return;
}
$response = json_decode($response_data);
// Response format (JSON payload):
// [{key:<key_1>, translation: <JSON encoded translation>, rev:<rev>, locale:<locale>},
// {key:<key_2>, ...}
// ]
$count = count($response);
log::info("translations", "Installed $count new / updated translation messages");
foreach ($response as $message_data) {
// @todo Better input validation
if (empty($message_data->key) || empty($message_data->translation) ||
empty($message_data->locale) || empty($message_data->rev)) {
throw new Exception("@todo TRANSLATIONS_FETCH_REQUEST_FAILED: Invalid response data");
}
$key = $message_data->key;
$locale = $message_data->locale;
$revision = $message_data->rev;
$translation = serialize(json_decode($message_data->translation));
// @todo Should we normalize the incoming_translations table into messages(id, key, message)
// and incoming_translations(id, translation, locale, revision)? Or just allow
// incoming_translations.message to be NULL?
$locale = $message_data->locale;
$entry = ORM::factory("incoming_translation")
->where(array("key" => $key, "locale" => $locale))
->find();
if (!$entry->loaded) {
// @todo Load a message key -> message (text) dict into memory outside of this loop
$root_entry = ORM::factory("incoming_translation")
->where(array("key" => $key, "locale" => "root"))
->find();
$entry->key = $key;
$entry->message = $root_entry->message;
$entry->locale = $locale;
}
$entry->revision = $revision;
$entry->translation = $translation;
$entry->save();
}
}
static function submit_translations() {
// Request format (HTTP POST):
// client_token = <client_token>
// uid = <l10n server user id>
// signature = md5(user_api_key($uid, $client_token) . $data . $client_token))
// data = // JSON payload
//
// {<key_1>: {message: <JSON encoded message>
// translations: {<locale_1>: <JSON encoded translation>,
// <locale_2>: ...}},
// <key_2>: {...}
// }
// @todo Batch requests (max request size)
// @todo include base_revision in submission / how to handle resubmissions / edit fights?
foreach (Database::instance()
->select("key", "message", "locale", "base_revision", "translation")
->from("outgoing_translations")
->get() as $row) {
$key = $row->key;
if (!isset($request->{$key})) {
$request->{$key}->message = json_encode(unserialize($row->message));
}
$request->{$key}->translations->{$row->locale} = json_encode(unserialize($row->translation));
}
// @todo reduce memory consumpotion, e.g. free $request
$request_data = json_encode($request);
$url = self::_server_url() . "?q=translations/submit";
$signature = self::_sign($request_data);
list ($response_data, $response_status) = remote::post(
$url, array("data" => $request_data,
"client_token" => self::client_token(),
"signature" => $signature,
"uid" => self::server_uid()));
if (!remote::success($response_status)) {
throw new Exception("@todo TRANSLATIONS_SUBMISSION_FAILED " . $response_status);
}
if (empty($response_data)) {
return;
}
$response = json_decode($response_data);
// Response format (JSON payload):
// [{key:<key_1>, locale:<locale_1>, rev:<rev_1>, status:<rejected|accepted|pending>},
// {key:<key_2>, ...}
// ]
// @todo Move messages out of outgoing into incoming, using new rev?
// @todo show which messages have been rejected / are pending?
}
}
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