MyShaarli/application/Updater.php
ArthurHoaro 1dc37f9cf8 Update method to use the new ID system, which replaces linkdate primary keys.
creation and update dates are now DateTime objects.
Since this update is very sensitve (changing the whole database), the datastore will be automatically backed up into the file datastore.<datetime>.php.
2016-12-12 03:02:01 +01:00

354 lines
10 KiB
PHP

<?php
/**
* Class Updater.
* Used to update stuff when a new Shaarli's version is reached.
* Update methods are ran only once, and the stored in a JSON file.
*/
class Updater
{
/**
* @var array Updates which are already done.
*/
protected $doneUpdates;
/**
* @var LinkDB instance.
*/
protected $linkDB;
/**
* @var ConfigManager $conf Configuration Manager instance.
*/
protected $conf;
/**
* @var bool True if the user is logged in, false otherwise.
*/
protected $isLoggedIn;
/**
* @var ReflectionMethod[] List of current class methods.
*/
protected $methods;
/**
* Object constructor.
*
* @param array $doneUpdates Updates which are already done.
* @param LinkDB $linkDB LinkDB instance.
* @param ConfigManager $conf Configuration Manager instance.
* @param boolean $isLoggedIn True if the user is logged in.
*/
public function __construct($doneUpdates, $linkDB, $conf, $isLoggedIn)
{
$this->doneUpdates = $doneUpdates;
$this->linkDB = $linkDB;
$this->conf = $conf;
$this->isLoggedIn = $isLoggedIn;
// Retrieve all update methods.
$class = new ReflectionClass($this);
$this->methods = $class->getMethods();
}
/**
* Run all new updates.
* Update methods have to start with 'updateMethod' and return true (on success).
*
* @return array An array containing ran updates.
*
* @throws UpdaterException If something went wrong.
*/
public function update()
{
$updatesRan = array();
// If the user isn't logged in, exit without updating.
if ($this->isLoggedIn !== true) {
return $updatesRan;
}
if ($this->methods == null) {
throw new UpdaterException('Couldn\'t retrieve Updater class methods.');
}
foreach ($this->methods as $method) {
// Not an update method or already done, pass.
if (! startsWith($method->getName(), 'updateMethod')
|| in_array($method->getName(), $this->doneUpdates)
) {
continue;
}
try {
$method->setAccessible(true);
$res = $method->invoke($this);
// Update method must return true to be considered processed.
if ($res === true) {
$updatesRan[] = $method->getName();
}
} catch (Exception $e) {
throw new UpdaterException($method, $e);
}
}
$this->doneUpdates = array_merge($this->doneUpdates, $updatesRan);
return $updatesRan;
}
/**
* @return array Updates methods already processed.
*/
public function getDoneUpdates()
{
return $this->doneUpdates;
}
/**
* Move deprecated options.php to config.php.
*
* Milestone 0.9 (old versioning) - shaarli/Shaarli#41:
* options.php is not supported anymore.
*/
public function updateMethodMergeDeprecatedConfigFile()
{
if (is_file($this->conf->get('resource.data_dir') . '/options.php')) {
include $this->conf->get('resource.data_dir') . '/options.php';
// Load GLOBALS into config
$allowedKeys = array_merge(ConfigPhp::$ROOT_KEYS);
$allowedKeys[] = 'config';
foreach ($GLOBALS as $key => $value) {
if (in_array($key, $allowedKeys)) {
$this->conf->set($key, $value);
}
}
$this->conf->write($this->isLoggedIn);
unlink($this->conf->get('resource.data_dir').'/options.php');
}
return true;
}
/**
* Rename tags starting with a '-' to work with tag exclusion search.
*/
public function updateMethodRenameDashTags()
{
$linklist = $this->linkDB->filterSearch();
foreach ($linklist as $key => $link) {
$link['tags'] = preg_replace('/(^| )\-/', '$1', $link['tags']);
$link['tags'] = implode(' ', array_unique(LinkFilter::tagsStrToArray($link['tags'], true)));
$this->linkDB[$key] = $link;
}
$this->linkDB->save($this->conf->get('resource.page_cache'));
return true;
}
/**
* Move old configuration in PHP to the new config system in JSON format.
*
* Will rename 'config.php' into 'config.save.php' and create 'config.json.php'.
* It will also convert legacy setting keys to the new ones.
*/
public function updateMethodConfigToJson()
{
// JSON config already exists, nothing to do.
if ($this->conf->getConfigIO() instanceof ConfigJson) {
return true;
}
$configPhp = new ConfigPhp();
$configJson = new ConfigJson();
$oldConfig = $configPhp->read($this->conf->getConfigFile() . '.php');
rename($this->conf->getConfigFileExt(), $this->conf->getConfigFile() . '.save.php');
$this->conf->setConfigIO($configJson);
$this->conf->reload();
$legacyMap = array_flip(ConfigPhp::$LEGACY_KEYS_MAPPING);
foreach (ConfigPhp::$ROOT_KEYS as $key) {
$this->conf->set($legacyMap[$key], $oldConfig[$key]);
}
// Set sub config keys (config and plugins)
$subConfig = array('config', 'plugins');
foreach ($subConfig as $sub) {
foreach ($oldConfig[$sub] as $key => $value) {
if (isset($legacyMap[$sub .'.'. $key])) {
$configKey = $legacyMap[$sub .'.'. $key];
} else {
$configKey = $sub .'.'. $key;
}
$this->conf->set($configKey, $value);
}
}
try{
$this->conf->write($this->isLoggedIn);
return true;
} catch (IOException $e) {
error_log($e->getMessage());
return false;
}
}
/**
* Escape settings which have been manually escaped in every request in previous versions:
* - general.title
* - general.header_link
* - redirector.url
*
* @return bool true if the update is successful, false otherwise.
*/
public function updateMethodEscapeUnescapedConfig()
{
try {
$this->conf->set('general.title', escape($this->conf->get('general.title')));
$this->conf->set('general.header_link', escape($this->conf->get('general.header_link')));
$this->conf->set('redirector.url', escape($this->conf->get('redirector.url')));
$this->conf->write($this->isLoggedIn);
} catch (Exception $e) {
error_log($e->getMessage());
return false;
}
return true;
}
/**
* Update the database to use the new ID system, which replaces linkdate primary keys.
* Also, creation and update dates are now DateTime objects.
*
* Since this update is very sensitve (changing the whole database), the datastore will be
* automatically backed up into the file datastore.<datetime>.php.
*
* @return bool true if the update is successful, false otherwise.
*/
public function updateMethodDatastoreIds()
{
// up to date database
if (isset($this->linkDB[0])) {
return true;
}
$save = $this->conf->get('resource.data_dir') .'/datastore.'. date('YmdHis') .'.php';
copy($this->conf->get('resource.datastore'), $save);
$links = array();
foreach ($this->linkDB as $offset => $value) {
$links[] = $value;
unset($this->linkDB[$offset]);
}
$links = array_reverse($links);
$cpt = 0;
foreach ($links as $l) {
$l['created'] = DateTime::createFromFormat('Ymd_His', $l['linkdate']);
if (! empty($l['updated'])) {
$l['updated'] = DateTime::createFromFormat('Ymd_His', $l['updated']);
}
unset($l['linkdate']);
$l['id'] = $cpt;
$this->linkDB[$cpt++] = $l;
}
$this->linkDB->save($this->conf->get('resource.page_cache'));
$this->linkDB->reorder();
return true;
}
}
/**
* Class UpdaterException.
*/
class UpdaterException extends Exception
{
/**
* @var string Method where the error occurred.
*/
protected $method;
/**
* @var Exception The parent exception.
*/
protected $previous;
/**
* Constructor.
*
* @param string $message Force the error message if set.
* @param string $method Method where the error occurred.
* @param Exception|bool $previous Parent exception.
*/
public function __construct($message = '', $method = '', $previous = false)
{
$this->method = $method;
$this->previous = $previous;
$this->message = $this->buildMessage($message);
}
/**
* Build the exception error message.
*
* @param string $message Optional given error message.
*
* @return string The built error message.
*/
private function buildMessage($message)
{
$out = '';
if (! empty($message)) {
$out .= $message . PHP_EOL;
}
if (! empty($this->method)) {
$out .= 'An error occurred while running the update '. $this->method . PHP_EOL;
}
if (! empty($this->previous)) {
$out .= ' '. $this->previous->getMessage();
}
return $out;
}
}
/**
* Read the updates file, and return already done updates.
*
* @param string $updatesFilepath Updates file path.
*
* @return array Already done update methods.
*/
function read_updates_file($updatesFilepath)
{
if (! empty($updatesFilepath) && is_file($updatesFilepath)) {
$content = file_get_contents($updatesFilepath);
if (! empty($content)) {
return explode(';', $content);
}
}
return array();
}
/**
* Write updates file.
*
* @param string $updatesFilepath Updates file path.
* @param array $updates Updates array to write.
*
* @throws Exception Couldn't write version number.
*/
function write_updates_file($updatesFilepath, $updates)
{
if (empty($updatesFilepath)) {
throw new Exception('Updates file path is not set, can\'t write updates.');
}
$res = file_put_contents($updatesFilepath, implode(';', $updates));
if ($res === false) {
throw new Exception('Unable to write updates in '. $updatesFilepath . '.');
}
}