class LinkDB implements Iterator, Countable, ArrayAccess
{
// Links are stored as a PHP serialized string
- private $_datastore;
+ private $datastore;
// Link date storage format
const LINK_DATE_FORMAT = 'Ymd_His';
// List of links (associative array)
// - key: link date (e.g. "20110823_124546"),
// - value: associative array (keys: title, description...)
- private $_links;
+ private $links;
// List of all recorded URLs (key=url, value=linkdate)
// for fast reserve search (url-->linkdate)
- private $_urls;
+ private $urls;
// List of linkdate keys (for the Iterator interface implementation)
- private $_keys;
+ private $keys;
- // Position in the $this->_keys array (for the Iterator interface)
- private $_position;
+ // Position in the $this->keys array (for the Iterator interface)
+ private $position;
// Is the user logged in? (used to filter private links)
- private $_loggedIn;
+ private $loggedIn;
// Hide public links
- private $_hidePublicLinks;
+ private $hidePublicLinks;
// link redirector set in user settings.
- private $_redirector;
+ private $redirector;
/**
* Set this to `true` to urlencode link behind redirector link, `false` to leave it untouched.
$redirectorEncode = true
)
{
- $this->_datastore = $datastore;
- $this->_loggedIn = $isLoggedIn;
- $this->_hidePublicLinks = $hidePublicLinks;
- $this->_redirector = $redirector;
+ $this->datastore = $datastore;
+ $this->loggedIn = $isLoggedIn;
+ $this->hidePublicLinks = $hidePublicLinks;
+ $this->redirector = $redirector;
$this->redirectorEncode = $redirectorEncode === true;
- $this->_checkDB();
- $this->_readDB();
+ $this->checkDB();
+ $this->readDB();
}
/**
*/
public function count()
{
- return count($this->_links);
+ return count($this->links);
}
/**
public function offsetSet($offset, $value)
{
// TODO: use exceptions instead of "die"
- if (!$this->_loggedIn) {
+ if (!$this->loggedIn) {
die('You are not authorized to add a link.');
}
if (empty($value['linkdate']) || empty($value['url'])) {
if (empty($offset)) {
die('You must specify a key.');
}
- $this->_links[$offset] = $value;
- $this->_urls[$value['url']]=$offset;
+ $this->links[$offset] = $value;
+ $this->urls[$value['url']]=$offset;
}
/**
*/
public function offsetExists($offset)
{
- return array_key_exists($offset, $this->_links);
+ return array_key_exists($offset, $this->links);
}
/**
*/
public function offsetUnset($offset)
{
- if (!$this->_loggedIn) {
+ if (!$this->loggedIn) {
// TODO: raise an exception
die('You are not authorized to delete a link.');
}
- $url = $this->_links[$offset]['url'];
- unset($this->_urls[$url]);
- unset($this->_links[$offset]);
+ $url = $this->links[$offset]['url'];
+ unset($this->urls[$url]);
+ unset($this->links[$offset]);
}
/**
*/
public function offsetGet($offset)
{
- return isset($this->_links[$offset]) ? $this->_links[$offset] : null;
+ return isset($this->links[$offset]) ? $this->links[$offset] : null;
}
/**
*/
function current()
{
- return $this->_links[$this->_keys[$this->_position]];
+ return $this->links[$this->keys[$this->position]];
}
/**
*/
function key()
{
- return $this->_keys[$this->_position];
+ return $this->keys[$this->position];
}
/**
*/
function next()
{
- ++$this->_position;
+ ++$this->position;
}
/**
*/
function rewind()
{
- $this->_keys = array_keys($this->_links);
- rsort($this->_keys);
- $this->_position = 0;
+ $this->keys = array_keys($this->links);
+ rsort($this->keys);
+ $this->position = 0;
}
/**
*/
function valid()
{
- return isset($this->_keys[$this->_position]);
+ return isset($this->keys[$this->position]);
}
/**
*
* If no DB file is found, creates a dummy DB.
*/
- private function _checkDB()
+ private function checkDB()
{
- if (file_exists($this->_datastore)) {
+ if (file_exists($this->datastore)) {
return;
}
// Create a dummy database for example
- $this->_links = array();
+ $this->links = array();
$link = array(
'title'=>' Shaarli: the personal, minimalist, super-fast, no-database delicious clone',
'url'=>'https://github.com/shaarli/Shaarli/wiki',
'linkdate'=> date('Ymd_His'),
'tags'=>'opensource software'
);
- $this->_links[$link['linkdate']] = $link;
+ $this->links[$link['linkdate']] = $link;
$link = array(
'title'=>'My secret stuff... - Pastebin.com',
'linkdate'=> date('Ymd_His', strtotime('-1 minute')),
'tags'=>'secretstuff'
);
- $this->_links[$link['linkdate']] = $link;
+ $this->links[$link['linkdate']] = $link;
// Write database to disk
$this->writeDB();
/**
* Reads database from disk to memory
*/
- private function _readDB()
+ private function readDB()
{
// Public links are hidden and user not logged in => nothing to show
- if ($this->_hidePublicLinks && !$this->_loggedIn) {
- $this->_links = array();
+ if ($this->hidePublicLinks && !$this->loggedIn) {
+ $this->links = array();
return;
}
// Read data
// Note that gzinflate is faster than gzuncompress.
// See: http://www.php.net/manual/en/function.gzdeflate.php#96439
- $this->_links = array();
+ $this->links = array();
- if (file_exists($this->_datastore)) {
- $this->_links = unserialize(gzinflate(base64_decode(
- substr(file_get_contents($this->_datastore),
+ if (file_exists($this->datastore)) {
+ $this->links = unserialize(gzinflate(base64_decode(
+ substr(file_get_contents($this->datastore),
strlen(self::$phpPrefix), -strlen(self::$phpSuffix)))));
}
// If user is not logged in, filter private links.
- if (!$this->_loggedIn) {
+ if (!$this->loggedIn) {
$toremove = array();
- foreach ($this->_links as $link) {
+ foreach ($this->links as $link) {
if ($link['private'] != 0) {
$toremove[] = $link['linkdate'];
}
}
foreach ($toremove as $linkdate) {
- unset($this->_links[$linkdate]);
+ unset($this->links[$linkdate]);
}
}
- $this->_urls = array();
- foreach ($this->_links as &$link) {
+ $this->urls = array();
+ foreach ($this->links as &$link) {
// Keep the list of the mapping URLs-->linkdate up-to-date.
- $this->_urls[$link['url']] = $link['linkdate'];
+ $this->urls[$link['url']] = $link['linkdate'];
// Sanitize data fields.
sanitizeLink($link);
// Remove private tags if the user is not logged in.
- if (! $this->_loggedIn) {
+ if (! $this->loggedIn) {
$link['tags'] = preg_replace('/(^|\s+)\.[^($|\s)]+\s*/', ' ', $link['tags']);
}
// Do not use the redirector for internal links (Shaarli note URL starting with a '?').
- if (!empty($this->_redirector) && !startsWith($link['url'], '?')) {
- $link['real_url'] = $this->_redirector;
+ if (!empty($this->redirector) && !startsWith($link['url'], '?')) {
+ $link['real_url'] = $this->redirector;
if ($this->redirectorEncode) {
$link['real_url'] .= urlencode(unescape($link['url']));
} else {
*/
private function writeDB()
{
- if (is_file($this->_datastore) && !is_writeable($this->_datastore)) {
+ if (is_file($this->datastore) && !is_writeable($this->datastore)) {
// The datastore exists but is not writeable
- throw new IOException($this->_datastore);
- } else if (!is_file($this->_datastore) && !is_writeable(dirname($this->_datastore))) {
+ throw new IOException($this->datastore);
+ } else if (!is_file($this->datastore) && !is_writeable(dirname($this->datastore))) {
// The datastore does not exist and its parent directory is not writeable
- throw new IOException(dirname($this->_datastore));
+ throw new IOException(dirname($this->datastore));
}
file_put_contents(
- $this->_datastore,
- self::$phpPrefix.base64_encode(gzdeflate(serialize($this->_links))).self::$phpSuffix
+ $this->datastore,
+ self::$phpPrefix.base64_encode(gzdeflate(serialize($this->links))).self::$phpSuffix
);
}
*/
public function savedb($pageCacheDir)
{
- if (!$this->_loggedIn) {
+ if (!$this->loggedIn) {
// TODO: raise an Exception instead
die('You are not authorized to change the database.');
}
*/
public function getLinkFromUrl($url)
{
- if (isset($this->_urls[$url])) {
- return $this->_links[$this->_urls[$url]];
+ if (isset($this->urls[$url])) {
+ return $this->links[$this->urls[$url]];
}
return false;
}
public function filterHash($request)
{
$request = substr($request, 0, 6);
- $linkFilter = new LinkFilter($this->_links);
+ $linkFilter = new LinkFilter($this->links);
return $linkFilter->filter(LinkFilter::$FILTER_HASH, $request);
}
* @return array list of shaare found.
*/
public function filterDay($request) {
- $linkFilter = new LinkFilter($this->_links);
+ $linkFilter = new LinkFilter($this->links);
return $linkFilter->filter(LinkFilter::$FILTER_DAY, $request);
}
$request = '';
}
- $linkFilter = new LinkFilter($this->_links);
+ $linkFilter = new LinkFilter($this->links);
return $linkFilter->filter($type, $request, $casesensitive, $privateonly);
}
{
$tags = array();
$caseMapping = array();
- foreach ($this->_links as $link) {
+ foreach ($this->links as $link) {
foreach (preg_split('/\s+/', $link['tags'], 0, PREG_SPLIT_NO_EMPTY) as $tag) {
if (empty($tag)) {
continue;
public function days()
{
$linkDays = array();
- foreach (array_keys($this->_links) as $day) {
+ foreach (array_keys($this->links) as $day) {
$linkDays[substr($day, 0, 8)] = 0;
}
$linkDays = array_keys($linkDays);