mirror of
https://github.com/sbrl/Pepperminty-Wiki.git
synced 2024-11-22 16:33:00 +00:00
1873 lines
63 KiB
PHP
1873 lines
63 KiB
PHP
<?php
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/** The Pepperminty Wiki core */
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$start_time = microtime(true);
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mb_internal_encoding("UTF-8");
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//{settings}
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/////////////////////////////////////////////////////////////////////////////
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////// Do not edit below this line unless you know what you are doing! //////
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/////////////////////////////////////////////////////////////////////////////
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/** The version of Pepperminty Wiki currently running. */
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$version = "{version}";
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$commit = "{commit}";
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/// Environment ///
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/** Holds information about the current request environment. */
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$env = new stdClass();
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/** The action requested by the user. */
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$env->action = $settings->defaultaction;
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/** The page name requested by the remote client. */
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$env->page = "";
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/** The filename that the page is stored in. */
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$env->page_filename = "";
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/** Whether we are looking at a history revision. */
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$env->is_history_revision = false;
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/** An object holding history revision information for the current request */
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$env->history = new stdClass();
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/** The revision number requested of the current page */
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$env->history->revision_number = -1;
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/** The revision data object from the page index for the requested revision */
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$env->history->revision_data = false;
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/** The user's name if they are logged in. Defaults to `$settings->anonymous_user_name` if the user isn't currently logged in. @var string */
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$env->user = $settings->anonymous_user_name;
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/** Whether the user is logged in */
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$env->is_logged_in = false;
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/** Whether the user is an admin (moderator) @todo Refactor this to is_moderator, so that is_admin can be for the server owner. */
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$env->is_admin = false;
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/** The currently logged in user's data. Please see $settings->users->username if you need to edit this - this is here for convenience :-) */
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$env->user_data = new stdClass();
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/** The data storage directory. Page filenames should be prefixed with this if you want their content. */
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$env->storage_prefix = $settings->data_storage_dir . DIRECTORY_SEPARATOR;
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/** Contains performance data statistics for the current request. */
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$env->perfdata = new stdClass();
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/// Paths ///
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/**
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* Contains a bunch of useful paths to various important files.
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* None of these need to be prefixed with `$env->storage_prefix`.
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*/
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$paths = new stdClass();
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/** The pageindex. Contains extensive information about all pages currently in this wiki. Individual entries for pages may be extended with arbitrary properties. */
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$paths->pageindex = "pageindex.json";
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/** The inverted index used for searching. Use the `search` class to interact with this - otherwise your brain might explode :P */
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$paths->searchindex = "invindex.json";
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/** The index that maps ids to page names. Use the `ids` class to interact with it :-) */
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$paths->idindex = "idindex.json";
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/** The cache of the most recently calculated statistics. */
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$paths->statsindex = "statsindex.json";
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/** The interwiki index cache */
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$paths->interwiki_index = "interwiki_index.json";
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// Prepend the storage data directory to all the defined paths.
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foreach ($paths as &$path) {
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$path = $env->storage_prefix . $path;
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}
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/** The master settings file @var string */
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$paths->settings_file = $settingsFilename;
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/** The prefix to add to uploaded files */
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$paths->upload_file_prefix = "Files/";
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session_start();
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// Make sure that the login cookie lasts beyond the end of the user's session
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setcookie(session_name(), session_id(), time() + $settings->sessionlifetime, "", "", false, true);
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///////// Login System /////////
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// Clear expired sessions
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if(isset($_SESSION[$settings->sessionprefix . "-expiretime"]) and
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$_SESSION[$settings->sessionprefix . "-expiretime"] < time())
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{
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// Clear the session variables
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$_SESSION = [];
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session_destroy();
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}
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if(isset($_SESSION[$settings->sessionprefix . "-user"]) and
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isset($_SESSION[$settings->sessionprefix . "-pass"]))
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{
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// Grab the session variables
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$env->user = $_SESSION[$settings->sessionprefix . "-user"];
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// The user is logged in
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$env->is_logged_in = true;
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$env->user_data = $settings->users->{$env->user};
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}
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// Check to see if the currently logged in user is an admin
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$env->is_admin = false;
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if($env->is_logged_in)
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{
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foreach($settings->admins as $admin_username)
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{
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if($admin_username == $env->user)
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{
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$env->is_admin = true;
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break;
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}
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}
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}
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/////// Login System End ///////
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////////////////////
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// APIDoc strings //
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////////////////////
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/**
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* @apiDefine Admin Only the wiki administrator may use this call.
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*/
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/**
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* @apiDefine Moderator Only users loggged with a moderator account may use this call.
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*/
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/**
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* @apiDefine User Only users loggged in may use this call.
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*/
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/**
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* @apiDefine Anonymous Anybody may use this call.
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*/
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/**
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* @apiDefine UserNotLoggedInError
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* @apiError UserNotLoggedInError You didn't log in before sending this request.
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*/
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/**
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* @apiDefine UserNotModeratorError
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* @apiError UserNotModeratorError You weren't loggged in as a moderator before sending this request.
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*/
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/**
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* @apiDefine PageParameter
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* @apiParam {string} page The page to operate on.
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*/
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////////////////////
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///////////////////////////////////////////////////////////////////////////////
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////////////////////////////////// Functions //////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////
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/**
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* Get the actual absolute origin of the request sent by the user.
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* @package core
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* @param array $s The $_SERVER variable contents. Defaults to $_SERVER.
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* @param bool $use_forwarded_host Whether to utilise the X-Forwarded-Host header when calculating the actual origin.
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* @return string The actual origin of the user's request.
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*/
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function url_origin( $s = false, $use_forwarded_host = false )
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{
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if($s === false) $s = $_SERVER;
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$ssl = ( ! empty( $s['HTTPS'] ) && $s['HTTPS'] == 'on' );
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$sp = strtolower( $s['SERVER_PROTOCOL'] );
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$protocol = substr( $sp, 0, strpos( $sp, '/' ) ) . ( ( $ssl ) ? 's' : '' );
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$port = $s['SERVER_PORT'];
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$port = ( ( ! $ssl && $port=='80' ) || ( $ssl && $port=='443' ) ) ? '' : ':'.$port;
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$host = ( $use_forwarded_host && isset( $s['HTTP_X_FORWARDED_HOST'] ) ) ? $s['HTTP_X_FORWARDED_HOST'] : ( isset( $s['HTTP_HOST'] ) ? $s['HTTP_HOST'] : null );
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$host = isset( $host ) ? $host : $s['SERVER_NAME'] . $port;
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return $protocol . '://' . $host;
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}
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/**
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* Get the full url, as requested by the client.
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* @package core
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* @see http://stackoverflow.com/a/8891890/1460422 This Stackoverflow answer.
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* @param array $s The $_SERVER variable. Defaults to $_SERVER.
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* @param bool $use_forwarded_host Whether to take the X-Forwarded-Host header into account.
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* @return string The full url, as requested by the client.
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*/
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function full_url( $s = false, $use_forwarded_host = false )
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{
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if($s == false) $s = $_SERVER;
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return url_origin( $s, $use_forwarded_host ) . $s['REQUEST_URI'];
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}
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/**
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* Converts a filesize into a human-readable string.
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* @package core
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* @see http://php.net/manual/en/function.filesize.php#106569 The original source
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* @author rommel
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* @author Edited by Starbeamrainbowlabs
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* @param number $bytes The number of bytes to convert.
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* @param number $decimals The number of decimal places to preserve.
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* @return string A human-readable filesize.
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*/
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function human_filesize($bytes, $decimals = 2)
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{
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$sz = ["b", "kb", "mb", "gb", "tb", "pb", "eb", "yb", "zb"];
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$factor = floor((strlen($bytes) - 1) / 3);
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$result = round($bytes / pow(1024, $factor), $decimals);
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return $result . @$sz[$factor];
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}
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/**
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* Calculates the time since a particular timestamp and returns a
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* human-readable result.
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* @package core
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* @see http://goo.gl/zpgLgq The original source. No longer exists, maybe the wayback machine caught it :-(
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* @param integer $time The timestamp to convert.
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* @return string The time since the given timestamp as
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* a human-readable string.
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*/
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function human_time_since($time)
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{
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return human_time(time() - $time);
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}
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/**
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* Renders a given number of seconds as something that humans can understand more easily.
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* @package core
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* @param int $seconds The number of seconds to render.
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* @return string The rendered time.
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*/
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function human_time($seconds)
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{
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$tokens = array (
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31536000 => 'year',
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2592000 => 'month',
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604800 => 'week',
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86400 => 'day',
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3600 => 'hour',
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60 => 'minute',
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1 => 'second'
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);
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foreach ($tokens as $unit => $text) {
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if ($seconds < $unit) continue;
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$numberOfUnits = floor($seconds / $unit);
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return $numberOfUnits.' '.$text.(($numberOfUnits>1)?'s':'').' ago';
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}
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}
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/**
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* A recursive glob() function.
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* @package core
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* @see http://in.php.net/manual/en/function.glob.php#106595 The original source
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* @author Mike
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* @param string $pattern The glob pattern to use to find filenames.
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* @param integer $flags The glob flags to use when finding filenames.
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* @return array An array of the filepaths that match the given glob.
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*/
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function glob_recursive($pattern, $flags = 0)
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{
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$files = glob($pattern, $flags);
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foreach (glob(dirname($pattern).'/*', GLOB_ONLYDIR|GLOB_NOSORT) as $dir)
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{
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$prefix = "$dir/";
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// Remove the "./" from the beginning if it exists
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if(substr($prefix, 0, 2) == "./") $prefix = substr($prefix, 2);
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$files = array_merge($files, glob_recursive($prefix . basename($pattern), $flags));
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}
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return $files;
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}
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/**
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* Gets the name of the parent page to the specified page.
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* @since 0.15
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* @package core
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* @param string $pagename The child page to get the parent
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* page name for.
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* @return string|bool
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*/
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function get_page_parent($pagename) {
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if(mb_strpos($pagename, "/") === false)
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return false;
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return mb_substr($pagename, 0, mb_strrpos($pagename, "/"));
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}
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/**
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* Gets a list of all the sub pages of the current page.
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* @package core
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* @param object $pageindex The pageindex to use to search.
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* @param string $pagename The name of the page to list the sub pages of.
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* @return object An object containing all the subpages and their
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* respective distances from the given page name in the pageindex tree.
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*/
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function get_subpages($pageindex, $pagename)
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{
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$pagenames = get_object_vars($pageindex);
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$result = new stdClass();
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$stem = "$pagename/";
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$stem_length = strlen($stem);
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foreach($pagenames as $entry => $value)
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{
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if(substr($entry, 0, $stem_length) == $stem)
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{
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// We found a subpage
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// Extract the subpage's key relative to the page that we are searching for
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$subpage_relative_key = substr($entry, $stem_length, -3);
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// Calculate how many times removed the current subpage is from the current page. 0 = direct descendant.
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$times_removed = substr_count($subpage_relative_key, "/");
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// Store the name of the subpage we found
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$result->$entry = $times_removed;
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}
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}
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unset($pagenames);
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return $result;
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}
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/**
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* Makes sure that a subpage's parents exist.
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* Note this doesn't check the pagename itself.
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* @package core
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* @param $pagename The pagename to check.
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*/
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function check_subpage_parents($pagename)
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{
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global $pageindex, $paths, $env;
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// Save the new pageindex and return if there aren't any more parent pages to check
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if(strpos($pagename, "/") === false)
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{
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file_put_contents($paths->pageindex, json_encode($pageindex, JSON_PRETTY_PRINT));
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return;
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}
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$parent_pagename = substr($pagename, 0, strrpos($pagename, "/"));
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$parent_page_filename = "$parent_pagename.md";
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if(!file_exists($env->storage_prefix . $parent_page_filename))
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{
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// This parent page doesn't exist! Create it and add it to the page index.
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touch($env->storage_prefix . $parent_page_filename, 0);
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$newentry = new stdClass();
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$newentry->filename = $parent_page_filename;
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$newentry->size = 0;
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$newentry->lastmodified = 0;
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$newentry->lasteditor = "none";
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$pageindex->$parent_pagename = $newentry;
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}
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check_subpage_parents($parent_pagename);
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}
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/**
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* Makes a path safe.
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* Paths may only contain alphanumeric characters, spaces, underscores, and
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* dashes.
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* @package core
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* @param string $string The string to make safe.
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* @return string A safe version of the given string.
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*/
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function makepathsafe($string)
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{
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// Old restrictive system
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//$string = preg_replace("/[^0-9a-zA-Z\_\-\ \/\.]/i", "", $string);
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// Remove reserved characters
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$string = preg_replace("/[?%*:|\"><()\\[\\]]/i", "", $string);
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// Collapse multiple dots into a single dot
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$string = preg_replace("/\.+/", ".", $string);
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// Don't allow slashes at the beginning
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$string = ltrim($string, "\\/");
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return $string;
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}
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/**
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* Hides an email address from bots by adding random html entities.
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* @todo Make this more clevererer :D
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* @package core
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* @param string $str The original email address
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* @return string The mangled email address.
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*/
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function hide_email($str)
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{
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$hidden_email = "";
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for($i = 0; $i < strlen($str); $i++)
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{
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if($str[$i] == "@")
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{
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$hidden_email .= "&#" . ord("@") . ";";
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continue;
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}
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if(rand(0, 1) == 0)
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$hidden_email .= $str[$i];
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else
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$hidden_email .= "&#" . ord($str[$i]) . ";";
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}
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return $hidden_email;
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}
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/**
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* Checks to see if $haystack starts with $needle.
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* @package core
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* @param string $haystack The string to search.
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* @param string $needle The string to search for at the beginning
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* of $haystack.
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* @return boolean Whether $needle can be found at the beginning
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* of $haystack.
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*/
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function starts_with($haystack, $needle)
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{
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$length = strlen($needle);
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return (substr($haystack, 0, $length) === $needle);
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}
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/**
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* Case-insensitively finds all occurrences of $needle in $haystack. Handles
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* UTF-8 characters correctly.
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* @package core
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* @see http://www.pontikis.net/tip/?id=16 the source
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* @see http://www.php.net/manual/en/function.strpos.php#87061 the source that the above was based on
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* @param string $haystack The string to search.
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* @param string $needle The string to find.
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* @return array|false An array of match indices, or false if
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* nothing was found.
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*/
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function mb_stripos_all($haystack, $needle) {
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$s = 0; $i = 0;
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while(is_integer($i)) {
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$i = mb_stripos($haystack, $needle, $s);
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if(is_integer($i)) {
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$aStrPos[] = $i;
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$s = $i + (function_exists("mb_strlen") ? mb_strlen($needle) : strlen($needle));
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}
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}
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if(isset($aStrPos))
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return $aStrPos;
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else
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return false;
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}
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|
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/**
|
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* Tests whether a string starts with a specified substring.
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* @package core
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* @param string $haystack The string to check against.
|
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* @param string $needle The substring to look for.
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* @return bool Whether the string starts with the specified substring.
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*/
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function startsWith($haystack, $needle) {
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return $needle === "" || strrpos($haystack, $needle, -strlen($haystack)) !== false;
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}
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/**
|
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* Tests whether a string ends with a given substring.
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|
* @package core
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* @param string $whole The string to test against.
|
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* @param string $end The substring test for.
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* @return bool Whether $whole ends in $end.
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*/
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function endsWith($whole, $end)
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{
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return (strpos($whole, $end, strlen($whole) - strlen($end)) !== false);
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}
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/**
|
|
* Replaces the first occurrence of $find with $replace.
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|
* @package core
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|
* @param string $find The string to search for.
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|
* @param string $replace The string to replace the search string with.
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* @param string $subject The string ot perform the search and replace on.
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* @return string The source string after the find and replace has been performed.
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*/
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function str_replace_once($find, $replace, $subject)
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{
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$index = strpos($subject, $find);
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if($index !== false)
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return substr_replace($subject, $replace, $index, strlen($find));
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return $subject;
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}
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|
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/**
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* Returns the system's mime type mappings, considering the first extension
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|
* listed to be cacnonical.
|
|
* @package core
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|
* @see http://stackoverflow.com/a/1147952/1460422 From this stackoverflow answer
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|
* @author chaos
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|
* @author Edited by Starbeamrainbowlabs
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* @return array An array of mime type mappings.
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*/
|
|
function system_mime_type_extensions()
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{
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global $settings;
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$out = array();
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$file = fopen($settings->mime_extension_mappings_location, 'r');
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while(($line = fgets($file)) !== false) {
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$line = trim(preg_replace('/#.*/', '', $line));
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if(!$line)
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continue;
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$parts = preg_split('/\s+/', $line);
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if(count($parts) == 1)
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continue;
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$type = array_shift($parts);
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if(!isset($out[$type]))
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$out[$type] = array_shift($parts);
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}
|
|
fclose($file);
|
|
return $out;
|
|
}
|
|
|
|
/**
|
|
* Converts a given mime type to it's associated file extension.
|
|
* @package core
|
|
* @see http://stackoverflow.com/a/1147952/1460422 From this stackoverflow answer
|
|
* @author chaos
|
|
* @author Edited by Starbeamrainbowlabs
|
|
* @param string $type The mime type to convert.
|
|
* @return string The extension for the given mime type.
|
|
*/
|
|
function system_mime_type_extension($type)
|
|
{
|
|
static $exts;
|
|
if(!isset($exts))
|
|
$exts = system_mime_type_extensions();
|
|
return isset($exts[$type]) ? $exts[$type] : null;
|
|
}
|
|
|
|
/**
|
|
* Returns the system MIME type mapping of extensions to MIME types.
|
|
* @package core
|
|
* @see http://stackoverflow.com/a/1147952/1460422 From this stackoverflow answer
|
|
* @author chaos
|
|
* @author Edited by Starbeamrainbowlabs
|
|
* @return array An array mapping file extensions to their associated mime types.
|
|
*/
|
|
function system_extension_mime_types()
|
|
{
|
|
global $settings;
|
|
$out = array();
|
|
$file = fopen($settings->mime_extension_mappings_location, 'r');
|
|
while(($line = fgets($file)) !== false) {
|
|
$line = trim(preg_replace('/#.*/', '', $line));
|
|
if(!$line)
|
|
continue;
|
|
$parts = preg_split('/\s+/', $line);
|
|
if(count($parts) == 1)
|
|
continue;
|
|
$type = array_shift($parts);
|
|
foreach($parts as $part)
|
|
$out[$part] = $type;
|
|
}
|
|
fclose($file);
|
|
return $out;
|
|
}
|
|
/**
|
|
* Converts a given file extension to it's associated mime type.
|
|
* @package core
|
|
* @see http://stackoverflow.com/a/1147952/1460422 From this stackoverflow answer
|
|
* @author chaos
|
|
* @author Edited by Starbeamrainbowlabs
|
|
* @param string $ext The extension to convert.
|
|
* @return string The mime type associated with the given extension.
|
|
*/
|
|
function system_extension_mime_type($ext) {
|
|
static $types;
|
|
if(!isset($types))
|
|
$types = system_extension_mime_types();
|
|
$ext = strtolower($ext);
|
|
return isset($types[$ext]) ? $types[$ext] : null;
|
|
}
|
|
|
|
/**
|
|
* Generates a stack trace.
|
|
* @package core
|
|
* @param bool $log_trace Whether to send the stack trace to the error log.
|
|
* @param bool $full Whether to output a full description of all the variables involved.
|
|
* @return string A string prepresentation of a stack trace.
|
|
*/
|
|
function stack_trace($log_trace = true, $full = false)
|
|
{
|
|
$result = "";
|
|
$stackTrace = debug_backtrace();
|
|
$stackHeight = count($stackTrace);
|
|
foreach ($stackTrace as $i => $stackEntry)
|
|
{
|
|
$result .= "#" . ($stackHeight - $i) . ": ";
|
|
$result .= (isset($stackEntry["file"]) ? $stackEntry["file"] : "(unknown file)") . ":" . (isset($stackEntry["line"]) ? $stackEntry["line"] : "(unknown line)") . " - ";
|
|
if(isset($stackEntry["function"]))
|
|
{
|
|
$result .= "(calling " . $stackEntry["function"];
|
|
if(isset($stackEntry["args"]) && count($stackEntry["args"]))
|
|
{
|
|
$result .= ": ";
|
|
$result .= implode(", ", array_map($full ? "var_dump_ret" : "var_dump_short", $stackEntry["args"]));
|
|
}
|
|
}
|
|
$result .= ")\n";
|
|
}
|
|
if($log_trace)
|
|
error_log($result);
|
|
return $result;
|
|
}
|
|
/**
|
|
* Calls var_dump() and returns the output.
|
|
* @package core
|
|
* @param mixed $var The thing to pass to var_dump().
|
|
* @return string The output captured from var_dump().
|
|
*/
|
|
function var_dump_ret($var)
|
|
{
|
|
ob_start();
|
|
var_dump($var);
|
|
return ob_get_clean();
|
|
}
|
|
|
|
/**
|
|
* Calls var_dump(), shortening the output for various types.
|
|
* @package core
|
|
* @param mixed $var The thing to pass to var_dump().
|
|
* @return string A shortened version of the var_dump() output.
|
|
*/
|
|
function var_dump_short($var)
|
|
{
|
|
$result = trim(var_dump_ret($var));
|
|
if(substr($result, 0, 6) === "object" || substr($result, 0, 5) === "array")
|
|
{
|
|
$result = substr($result, 0, strpos($result, " ")) . " { ... }";
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
if (!function_exists('getallheaders')) {
|
|
/**
|
|
* Polyfill for PHP's native getallheaders() function on platforms that
|
|
* don't have it.
|
|
* @package core
|
|
* @todo Identify which platforms don't have it and whether we still need this
|
|
*/
|
|
function getallheaders()
|
|
{
|
|
if (!is_array($_SERVER))
|
|
return [];
|
|
|
|
$headers = array();
|
|
foreach ($_SERVER as $name => $value) {
|
|
if (substr($name, 0, 5) == 'HTTP_') {
|
|
$headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))] = $value;
|
|
}
|
|
}
|
|
return $headers;
|
|
}
|
|
}
|
|
/**
|
|
* Renders a timestamp in HTML.
|
|
* @package core
|
|
* @param int $timestamp The timestamp to render.
|
|
* @return string HTML representing the given timestamp.
|
|
*/
|
|
function render_timestamp($timestamp)
|
|
{
|
|
return "<time class='cursor-query' title='" . date("l jS \of F Y \a\\t h:ia T", $timestamp) . "'>" . human_time_since($timestamp) . "</time>";
|
|
}
|
|
/**
|
|
* Renders a page name in HTML.
|
|
* @package core
|
|
* @param object $rchange The recent change to render as a page name
|
|
* @return string HTML representing the name of the given page.
|
|
*/
|
|
function render_pagename($rchange)
|
|
{
|
|
global $pageindex;
|
|
$pageDisplayName = $rchange->page;
|
|
if(isset($pageindex->$pageDisplayName) and !empty($pageindex->$pageDisplayName->redirect))
|
|
$pageDisplayName = "<em>$pageDisplayName</em>";
|
|
$pageDisplayLink = "<a href='?page=" . rawurlencode($rchange->page) . "'>$pageDisplayName</a>";
|
|
return $pageDisplayName;
|
|
}
|
|
/**
|
|
* Renders an editor's or a group of editors name(s) in HTML.
|
|
* @package core
|
|
* @param string $editorName The name of the editor to render.
|
|
* @return string HTML representing the given editor's name.
|
|
*/
|
|
function render_editor($editorName)
|
|
{
|
|
return "<span class='editor'>✎ $editorName</span>";
|
|
}
|
|
|
|
/**
|
|
* Saves the settings file back to peppermint.json.
|
|
* @return bool Whether the settings were saved successfully.
|
|
*/
|
|
function save_settings() {
|
|
global $paths, $settings;
|
|
return file_put_contents($paths->settings_file, json_encode($settings, JSON_PRETTY_PRINT)) !== false;
|
|
}
|
|
|
|
/**
|
|
* Saves the currently logged in user's data back to peppermint.json.
|
|
* @package core
|
|
* @return bool Whether the user's data was saved successfully. Returns false if the user isn't logged in.
|
|
*/
|
|
function save_userdata()
|
|
{
|
|
global $env, $settings, $paths;
|
|
|
|
if(!$env->is_logged_in)
|
|
return false;
|
|
|
|
$settings->users->{$env->user} = $env->user_data;
|
|
|
|
return save_settings();
|
|
}
|
|
|
|
/**
|
|
* Figures out the path to the user page for a given username.
|
|
* Does not check to make sure the user acutally exists.
|
|
* @package core
|
|
* @param string $username The username to get the path to their user page for.
|
|
* @return string The path to the given user's page.
|
|
*/
|
|
function get_user_pagename($username) {
|
|
global $settings;
|
|
return "$settings->user_page_prefix/$username";
|
|
}
|
|
/**
|
|
* Extracts a username from a user page path.
|
|
* @package core
|
|
* @param string $userPagename The suer page path to extract from.
|
|
* @return string The name of the user that the user page belongs to.
|
|
*/
|
|
function extract_user_from_userpage($userPagename) {
|
|
global $settings;
|
|
$matches = [];
|
|
preg_match("/$settings->user_page_prefix\\/([^\\/]+)\\/?/", $userPagename, $matches);
|
|
|
|
return $matches[1];
|
|
}
|
|
|
|
/**
|
|
* Sends a plain text email to a user, replacing {username} with the specified username.
|
|
* @package core
|
|
* @param string $username The username to send the email to.
|
|
* @param string $subject The subject of the email.
|
|
* @param string $body The body of the email.
|
|
* @return boolean Whether the email was sent successfully or not. Currently, this may fail if the user doesn't have a registered email address.
|
|
*/
|
|
function email_user($username, $subject, $body)
|
|
{
|
|
global $version, $settings;
|
|
|
|
// If the user doesn't have an email address, then we can't email them :P
|
|
if(empty($settings->users->{$username}->emailAddress))
|
|
return false;
|
|
|
|
$subject = str_replace("{username}", $username, $subject);
|
|
$body = str_replace("{username}", $username, $body);
|
|
|
|
$headers = [
|
|
"content-type" => "text/plain",
|
|
"x-mailer" => "$settings->sitename Pepperminty-Wiki/$version PHP/" . phpversion(),
|
|
"reply-to" => "$settings->admindetails_name <$settings->admindetails_email>"
|
|
];
|
|
$compiled_headers = "";
|
|
foreach($headers as $header => $value)
|
|
$compiled_headers .= "$header: $value\r\n";
|
|
|
|
return mail($settings->users->{$username}->emailAddress, $subject, $body, $compiled_headers, "-t");
|
|
}
|
|
/**
|
|
* Sends a plain text email to a list of users, replacing {username} with each user's name.
|
|
* @package core
|
|
* @param string[] $usernames A list of usernames to email.
|
|
* @param string $subject The subject of the email.
|
|
* @param string $body The body of the email.
|
|
* @return integer The number of emails sent successfully.
|
|
*/
|
|
function email_users($usernames, $subject, $body)
|
|
{
|
|
$emailsSent = 0;
|
|
foreach($usernames as $username)
|
|
{
|
|
$emailsSent += email_user($username, $subject, $body) ? 1 : 0;
|
|
}
|
|
return $emailsSent;
|
|
}
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
////////////////////// Security and Consistency Measures //////////////////////
|
|
///////////////////////////////////////////////////////////////////////////////
|
|
|
|
/*
|
|
* Sort out the pageindex. Create it if it doesn't exist, and load + parse it
|
|
* if it does.
|
|
*/
|
|
if(!file_exists($paths->pageindex))
|
|
{
|
|
$glob_str = $env->storage_prefix . "*.md";
|
|
$existingpages = glob_recursive($glob_str);
|
|
// Debug statements. Uncomment when debugging the pageindex regenerator.
|
|
// var_dump($env->storage_prefix);
|
|
// var_dump($glob_str);
|
|
// var_dump($existingpages);
|
|
$pageindex = new stdClass();
|
|
// We use a for loop here because foreach doesn't loop over new values inserted
|
|
// while we were looping
|
|
for($i = 0; $i < count($existingpages); $i++)
|
|
{
|
|
$pagefilename = $existingpages[$i];
|
|
|
|
// Create a new entry
|
|
$newentry = new stdClass();
|
|
$newentry->filename = substr( // Store the filename, whilst trimming the storage prefix
|
|
$pagefilename,
|
|
mb_strlen(preg_replace("/^\.\//iu", "", $env->storage_prefix)) // glob_recursive trim the ./ from returned filenames , so we need to as well
|
|
);
|
|
// Remove the `./` from the beginning if it's still hanging around
|
|
if(substr($newentry->filename, 0, 2) == "./")
|
|
$newentry->filename = substr($newentry->filename, 2);
|
|
$newentry->size = filesize($pagefilename); // Store the page size
|
|
$newentry->lastmodified = filemtime($pagefilename); // Store the date last modified
|
|
// Todo find a way to keep the last editor independent of the page index
|
|
$newentry->lasteditor = "unknown"; // Set the editor to "unknown"
|
|
// Extract the name of the (sub)page without the ".md"
|
|
$pagekey = mb_substr($newentry->filename, 0, -3);
|
|
|
|
if(file_exists($env->storage_prefix . $pagekey) && // If it exists...
|
|
!is_dir($env->storage_prefix . $pagekey)) // ...and isn't a directory
|
|
{
|
|
// This page (potentially) has an associated file!
|
|
// Let's investigate.
|
|
|
|
// Blindly add the file to the pageindex for now.
|
|
// Future We might want to do a security check on the file later on.
|
|
// File a bug if you think we should do this.
|
|
$newentry->uploadedfile = true; // Yes this page does have an uploaded file associated with it
|
|
$newentry->uploadedfilepath = $pagekey; // It's stored here
|
|
|
|
// Work out what kind of file it really is
|
|
$mimechecker = finfo_open(FILEINFO_MIME_TYPE);
|
|
$newentry->uploadedfilemime = finfo_file($mimechecker, $env->storage_prefix . $pagekey);
|
|
}
|
|
|
|
// Debug statements. Uncomment when debugging the pageindex regenerator.
|
|
// echo("pagekey: ");
|
|
// var_dump($pagekey);
|
|
// echo("newentry: ");
|
|
// var_dump($newentry);
|
|
|
|
// Subpage parent checker
|
|
if(strpos($pagekey, "/") !== false)
|
|
{
|
|
// We have a sub page people
|
|
// Work out what our direct parent's key must be in order to check to
|
|
// make sure that it actually exists. If it doesn't, then we need to
|
|
// create it.
|
|
$subpage_parent_key = substr($pagekey, 0, strrpos($pagekey, "/"));
|
|
$subpage_parent_filename = "$env->storage_prefix$subpage_parent_key.md";
|
|
if(array_search($subpage_parent_filename, $existingpages) === false)
|
|
{
|
|
// Our parent page doesn't actually exist - create it
|
|
touch($subpage_parent_filename, 0);
|
|
// Furthermore, we should add this page to the list of existing pages
|
|
// in order for it to be indexed
|
|
$existingpages[] = $subpage_parent_filename;
|
|
}
|
|
}
|
|
|
|
// Store the new entry in the new page index
|
|
$pageindex->$pagekey = $newentry;
|
|
}
|
|
file_put_contents($paths->pageindex, json_encode($pageindex, JSON_PRETTY_PRINT));
|
|
unset($existingpages);
|
|
}
|
|
else
|
|
{
|
|
$pageindex_read_start = microtime(true);
|
|
$pageindex = json_decode(file_get_contents($paths->pageindex));
|
|
$env->perfdata->pageindex_decode_time = round((microtime(true) - $pageindex_read_start)*1000, 3);
|
|
header("x-pageindex-decode-time: " . $env->perfdata->pageindex_decode_time . "ms");
|
|
}
|
|
|
|
//////////////////////////
|
|
///// Page id system /////
|
|
//////////////////////////
|
|
if(!file_exists($paths->idindex))
|
|
file_put_contents($paths->idindex, "{}");
|
|
$idindex_decode_start = microtime(true);
|
|
$idindex = json_decode(file_get_contents($paths->idindex));
|
|
$env->perfdata->idindex_decode_time = round((microtime(true) - $idindex_decode_start)*1000, 3);
|
|
/**
|
|
* Provides an interface to interact with page ids.
|
|
* @package core
|
|
*/
|
|
class ids
|
|
{
|
|
/**
|
|
* Gets the page id associated with the given page name.
|
|
* If it doesn't exist in the id index, it will be added.
|
|
* @package core
|
|
* @param string $pagename The name of the page to fetch the id for.
|
|
* @return integer The id for the specified page name.
|
|
*/
|
|
public static function getid($pagename)
|
|
{
|
|
global $idindex;
|
|
|
|
$pagename_norm = Normalizer::normalize($pagename, Normalizer::FORM_C);
|
|
foreach ($idindex as $id => $entry)
|
|
{
|
|
// We don't need to normalise here because we normralise when assigning ids
|
|
if($entry == $pagename_norm)
|
|
return $id;
|
|
}
|
|
|
|
// This pagename doesn't have an id - assign it one quick!
|
|
return self::assign($pagename);
|
|
}
|
|
|
|
/**
|
|
* Gets the page name associated with the given page id.
|
|
* Be warned that if the id index is cleared (e.g. when the search index is
|
|
* rebuilt from scratch), the id associated with a page name may change!
|
|
* @package core
|
|
* @param int $id The id to fetch the page name for.
|
|
* @return string The page name currently associated with the specified id.
|
|
*/
|
|
public static function getpagename($id)
|
|
{
|
|
global $idindex;
|
|
|
|
if(!isset($idindex->$id))
|
|
return false;
|
|
else
|
|
return $idindex->$id;
|
|
}
|
|
|
|
/**
|
|
* Moves a page in the id index from $oldpagename to $newpagename.
|
|
* Note that this function doesn't perform any special checks to make sure
|
|
* that the destination name doesn't already exist.
|
|
* @package core
|
|
* @param string $oldpagename The old page name to move.
|
|
* @param string $newpagename The new page name to move the old page name to.
|
|
*/
|
|
public static function movepagename($oldpagename, $newpagename)
|
|
{
|
|
global $idindex, $paths;
|
|
|
|
$pageid = self::getid(Normalizer::normalize($oldpagename, Normalizer::FORM_C));
|
|
$idindex->$pageid = Normalizer::normalize($newpagename, Normalizer::FORM_C);
|
|
|
|
file_put_contents($paths->idindex, json_encode($idindex));
|
|
}
|
|
|
|
/**
|
|
* Removes the given page name from the id index.
|
|
* Note that this function doesn't handle multiple entries with the same
|
|
* name. Also note that it may get re-added during a search reindex if the
|
|
* page still exists.
|
|
* @package core
|
|
* @param string $pagename The page name to delete from the id index.
|
|
*/
|
|
public static function deletepagename($pagename)
|
|
{
|
|
global $idindex, $paths;
|
|
|
|
// Get the id of the specified page
|
|
$pageid = self::getid($pagename);
|
|
// Remove it from the pageindex
|
|
unset($idindex->$pageid);
|
|
// Save the id index
|
|
file_put_contents($paths->idindex, json_encode($idindex));
|
|
}
|
|
|
|
/**
|
|
* Clears the id index completely.
|
|
* Will break the inverted search index! Make sure you rebuild the search
|
|
* index (if the search module is installed, of course) if you want search
|
|
* to still work. Of course, note that will re-add all the pages to the id
|
|
* index.
|
|
* @package core
|
|
*/
|
|
public static function clear()
|
|
{
|
|
global $paths, $idindex;
|
|
// Delete the old id index
|
|
unlink($paths->idindex);
|
|
// Create the new id index
|
|
file_put_contents($paths->idindex, "{}");
|
|
// Reset the in-memory id index
|
|
$idindex = new stdClass();
|
|
}
|
|
|
|
/**
|
|
* Assigns an id to a pagename. Doesn't check to make sure that
|
|
* pagename doesn't already exist in the id index.
|
|
* @package core
|
|
* @param string $pagename The page name to assign an id to.
|
|
* @return integer The id assigned to the specified page name.
|
|
*/
|
|
protected static function assign($pagename)
|
|
{
|
|
global $idindex, $paths;
|
|
|
|
$pagename = Normalizer::normalize($pagename, Normalizer::FORM_C);
|
|
|
|
$nextid = count(array_keys(get_object_vars($idindex)));
|
|
// Increment the generated id until it's unique
|
|
while(isset($idindex->nextid))
|
|
$nextid++;
|
|
|
|
// Update the id index
|
|
$idindex->$nextid = $pagename;
|
|
|
|
// Save the id index
|
|
file_put_contents($paths->idindex, json_encode($idindex));
|
|
|
|
return $nextid;
|
|
}
|
|
}
|
|
//////////////////////////
|
|
//////////////////////////
|
|
|
|
// Work around an Opera + Syntaxtic bug where there is no margin at the left
|
|
// hand side if there isn't a query string when accessing a .php file.
|
|
if(!isset($_GET["action"]) and !isset($_GET["page"]) and basename(parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH)) == "index.php")
|
|
{
|
|
http_response_code(302);
|
|
header("location: " . dirname(parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH)));
|
|
exit();
|
|
}
|
|
|
|
// Make sure that the action is set
|
|
if(empty($_GET["action"]))
|
|
$_GET["action"] = $settings->defaultaction;
|
|
// Make sure that the page is set
|
|
if(empty($_GET["page"]) or strlen($_GET["page"]) === 0)
|
|
$_GET["page"] = $settings->defaultpage;
|
|
|
|
// Redirect the user to the safe version of the path if they entered an unsafe character
|
|
if(makepathsafe($_GET["page"]) !== $_GET["page"])
|
|
{
|
|
http_response_code(301);
|
|
header("location: index.php?action=" . rawurlencode($_GET["action"]) . "&page=" . makepathsafe($_GET["page"]));
|
|
header("x-requested-page: " . $_GET["page"]);
|
|
header("x-actual-page: " . makepathsafe($_GET["page"]));
|
|
exit();
|
|
}
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//////////////////////////////// HTML fragments ////////////////////////////////
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
/**
|
|
* Renders the HTML page that is sent to the client.
|
|
* @package core
|
|
*/
|
|
class page_renderer
|
|
{
|
|
/**
|
|
* The root HTML template that all pages are built from.
|
|
* @var string
|
|
* @package core
|
|
*/
|
|
public static $html_template = "<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<meta charset='utf-8' />
|
|
<title>{title}</title>
|
|
<meta name='viewport' content='width=device-width, initial-scale=1' />
|
|
<meta name='generator' content='Pepperminty Wiki {version}' />
|
|
<link rel='shortcut-icon' href='{favicon-url}' />
|
|
<link rel='icon' href='{favicon-url}' />
|
|
{header-html}
|
|
</head>
|
|
<body>
|
|
{body}
|
|
<!-- Took {generation-time-taken}ms to generate -->
|
|
</body>
|
|
</html>
|
|
";
|
|
/**
|
|
* The main content template that is used to render normal wiki pages.
|
|
* @var string
|
|
* @package core
|
|
*/
|
|
public static $main_content_template = "{navigation-bar}
|
|
<h1 class='sitename'>{sitename}</h1>
|
|
<main>
|
|
{content}
|
|
</main>
|
|
{extra}
|
|
<footer>
|
|
<p>{footer-message}</p>
|
|
<p>Powered by Pepperminty Wiki {version}, which was built by <a href='//starbeamrainbowlabs.com/'>Starbeamrainbowlabs</a>. Send bugs to 'bugs at starbeamrainbowlabs dot com' or <a href='//github.com/sbrl/Pepperminty-Wiki' title='Github Issue Tracker'>open an issue</a>.</p>
|
|
<p>Your local friendly moderators are {admins-name-list}.</p>
|
|
<p>This wiki is managed by <a href='mailto:{admin-details-email}'>{admin-details-name}</a>.</p>
|
|
</footer>
|
|
{navigation-bar-bottom}
|
|
{all-pages-datalist}";
|
|
/**
|
|
* A specially minified content template that doesn't include the navbar and
|
|
* other elements not suitable for printing.
|
|
* @var string
|
|
* @package core
|
|
*/
|
|
public static $minimal_content_template = "<main class='printable'>{content}</main>
|
|
<footer class='printable'>
|
|
<hr class='footerdivider' />
|
|
<p><em>From {sitename}, which is managed by {admin-details-name}.</em></p>
|
|
<p>{footer-message}</p>
|
|
<p><em>Timed at {generation-date}</em></p>
|
|
<p><em>Powered by Pepperminty Wiki {version}.</em></p>
|
|
</footer>";
|
|
|
|
/**
|
|
* An array of items indicating the resources to ask the web server to push
|
|
* down to the client with HTTP/2.0 server push.
|
|
* Format: [ [type, path], [type, path], .... ]
|
|
* @var array[]
|
|
*/
|
|
protected static $http2_push_items = [];
|
|
|
|
/**
|
|
* An array of functions that have been registered to process the
|
|
* find / replace array before the page is rendered. Note that the function
|
|
* should take a *reference* to an array as its only argument.
|
|
* @var array
|
|
* @package core
|
|
*/
|
|
protected static $part_processors = [];
|
|
|
|
/**
|
|
* Registers a function as a part post processor.
|
|
* This function's use is more complicated to explain. Pepperminty Wiki
|
|
* renders pages with a very simple templating system. For example, in the
|
|
* template a page's content is denoted by `{content}`. A function
|
|
* registered here will be passed all the components of a page _just_
|
|
* before they are dropped into the template. Note that the function you
|
|
* pass in here should take a *reference* to the components, as the return
|
|
* value of the function passed is discarded.
|
|
* @package core
|
|
* @param function $function The part preprocessor to register.
|
|
*/
|
|
public static function register_part_preprocessor($function)
|
|
{
|
|
global $settings;
|
|
|
|
// Make sure that the function we are about to register is valid
|
|
if(!is_callable($function))
|
|
{
|
|
http_response_code(500);
|
|
$admin_name = $settings->admindetails_name;
|
|
$admin_email = hide_email($settings->admindetails_email);
|
|
exit(page_renderer::render("$settings->sitename - Module Error", "<p>$settings->sitename has got a misbehaving module installed that tried to register an invalid HTML handler with the page renderer. Please contact $settings->sitename's administrator $admin_name at <a href='mailto:$admin_email'>$admin_email</a>."));
|
|
}
|
|
|
|
self::$part_processors[] = $function;
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Renders a HTML page with the content specified.
|
|
* @package core
|
|
* @param string $title The title of the page.
|
|
* @param string $content The (HTML) content of the page.
|
|
* @param boolean $body_template The HTML content template to use.
|
|
* @return string The rendered HTML, ready to send to the client :-)
|
|
*/
|
|
public static function render($title, $content, $body_template = false)
|
|
{
|
|
global $settings, $start_time, $version;
|
|
|
|
if($body_template === false)
|
|
$body_template = self::$main_content_template;
|
|
|
|
if(strlen($settings->logo_url) > 0)
|
|
{
|
|
// A logo url has been specified
|
|
$logo_html = "<img class='logo" . (isset($_GET["printable"]) ? " small" : "") . "' src='$settings->logo_url' />";
|
|
switch($settings->logo_position)
|
|
{
|
|
case "left":
|
|
$logo_html = "$logo_html $settings->sitename";
|
|
break;
|
|
case "right":
|
|
$logo_html .= " $settings->sitename";
|
|
break;
|
|
default:
|
|
throw new Exception("Invalid logo_position '$settings->logo_position'. Valid values are either \"left\" or \"right\" and are case sensitive.");
|
|
}
|
|
}
|
|
|
|
// Push the logo via HTTP/2.0 if possible
|
|
if($settings->favicon[0] === "/") self::$http2_push_items[] = ["image", $settings->favicon];
|
|
|
|
$parts = [
|
|
"{body}" => $body_template,
|
|
|
|
"{sitename}" => $logo_html,
|
|
"{version}" => $version,
|
|
"{favicon-url}" => $settings->favicon,
|
|
"{header-html}" => self::get_header_html(),
|
|
|
|
"{navigation-bar}" => self::render_navigation_bar($settings->nav_links, $settings->nav_links_extra, "top"),
|
|
"{navigation-bar-bottom}" => self::render_navigation_bar($settings->nav_links_bottom, [], "bottom"),
|
|
|
|
"{admin-details-name}" => $settings->admindetails_name,
|
|
"{admin-details-email}" => $settings->admindetails_email,
|
|
|
|
"{admins-name-list}" => implode(", ", array_map(function($username) { return page_renderer::render_username($username); }, $settings->admins)),
|
|
|
|
"{generation-date}" => date("l jS \of F Y \a\\t h:ia T"),
|
|
|
|
"{all-pages-datalist}" => self::generate_all_pages_datalist(),
|
|
|
|
"{footer-message}" => $settings->footer_message,
|
|
|
|
/// Secondary Parts ///
|
|
|
|
"{content}" => $content,
|
|
"{extra}" => "",
|
|
"{title}" => $title,
|
|
];
|
|
|
|
// Pass the parts through the part processors
|
|
foreach(self::$part_processors as $function) {
|
|
$function($parts);
|
|
}
|
|
|
|
$result = self::$html_template;
|
|
|
|
$result = str_replace(array_keys($parts), array_values($parts), $result);
|
|
|
|
$result = str_replace("{generation-time-taken}", round((microtime(true) - $start_time)*1000, 2), $result);
|
|
// Send the HTTP/2.0 server push indicators if possible - but not if we're sending a redirect page
|
|
if(!headers_sent() && (http_response_code() < 300 || http_response_code() >= 400)) self::send_server_push_indicators();
|
|
return $result;
|
|
}
|
|
/**
|
|
* Renders a normal HTML page.
|
|
* @package core
|
|
* @param string $title The title of the page.
|
|
* @param string $content The content of the page.
|
|
* @return string The rendered page.
|
|
*/
|
|
public static function render_main($title, $content)
|
|
{
|
|
return self::render($title, $content, self::$main_content_template);
|
|
}
|
|
/**
|
|
* Renders a minimal HTML page. Useful for printable pages.
|
|
* @package core
|
|
* @param string $title The title of the page.
|
|
* @param string $content The content of the page.
|
|
* @return string The rendered page.
|
|
*/
|
|
public static function render_minimal($title, $content)
|
|
{
|
|
return self::render($title, $content, self::$minimal_content_template);
|
|
}
|
|
|
|
/**
|
|
* Sends the currently registered HTTP2 server push items to the client.
|
|
* @return integer|FALSE The number of resource hints included in the link: header, or false if server pushing is disabled.
|
|
*/
|
|
public static function send_server_push_indicators() {
|
|
global $settings;
|
|
if(!$settings->http2_server_push)
|
|
return false;
|
|
|
|
// Render the preload directives
|
|
$link_header_parts = [];
|
|
foreach(self::$http2_push_items as $push_item)
|
|
$link_header_parts[] = "<{$push_item[1]}>; rel=preload; as={$push_item[0]}";
|
|
|
|
// Send them in a link: header
|
|
if(!empty($link_header_parts))
|
|
header("link: " . implode(", ", $link_header_parts));
|
|
|
|
return count(self::$http2_push_items);
|
|
}
|
|
|
|
/**
|
|
* Renders the header HTML.
|
|
* @package core
|
|
* @return string The rendered HTML that goes in the header.
|
|
*/
|
|
public static function get_header_html()
|
|
{
|
|
global $settings;
|
|
$result = self::get_css_as_html();
|
|
$result .= self::getJS();
|
|
|
|
// We can't use module_exists here because sometimes global $modules
|
|
// hasn't populated yet when we get called O.o
|
|
if(class_exists("search"))
|
|
$result .= "\t\t<link rel='search' type='application/opensearchdescription+xml' href='?action=opensearch-description' title='$settings->sitename Search' />\n";
|
|
|
|
if(!empty($settings->enable_math_rendering))
|
|
{
|
|
$result .= "<script type='text/x-mathjax-config'>
|
|
MathJax.Hub.Config({
|
|
tex2jax: {
|
|
inlineMath: [ ['$','$'], ['\\\\(','\\\\)'] ],
|
|
processEscapes: true,
|
|
skipTags: ['script','noscript','style','textarea','pre','code']
|
|
}
|
|
});
|
|
</script>";
|
|
}
|
|
|
|
return $result;
|
|
}
|
|
/**
|
|
* Figures out whether $settings->css is a url, or a string of css.
|
|
* A url is something starting with "protocol://" or simply a "/".
|
|
* @return boolean True if it's a url - false if we assume it's a string of css.
|
|
*/
|
|
public static function is_css_url() {
|
|
global $settings;
|
|
return preg_match("/^[^\/]*\/\/|^\//", $settings->css);
|
|
}
|
|
/**
|
|
* Renders all the CSS as HTML.
|
|
* @package core
|
|
* @return string The css as HTML, ready to be included in the HTML header.
|
|
*/
|
|
public static function get_css_as_html()
|
|
{
|
|
global $settings, $defaultCSS;
|
|
|
|
if(self::is_css_url()) {
|
|
if($settings->css[0] === "/") // Push it if it's a relative resource
|
|
self::AddServerPushIndicator("style", $settings->css);
|
|
return "<link rel='stylesheet' href='$settings->css' />\n";
|
|
} else {
|
|
$css = $settings->css == "auto" ? $defaultCSS : $settings->css;
|
|
if(!empty($settings->optimize_pages))
|
|
{
|
|
// CSS Minification ideas by Jean from catswhocode.com
|
|
// Link: http://www.catswhocode.com/blog/3-ways-to-compress-css-files-using-php
|
|
// Remove comments
|
|
$css = preg_replace('!/\*[^*]*\*+([^/][^*]*\*+)*/!', "", $css);
|
|
// Cut down whitespace
|
|
$css = preg_replace('/\s+/', " ", $css);
|
|
// Remove whitespace after colons and semicolons
|
|
$css = str_replace([
|
|
" :",
|
|
": ",
|
|
"; ",
|
|
" { ",
|
|
" } "
|
|
], [
|
|
":",
|
|
":",
|
|
";",
|
|
"{",
|
|
"}"
|
|
], $css);
|
|
|
|
}
|
|
return "<style>$css</style>\n";
|
|
}
|
|
}
|
|
/**
|
|
* The javascript snippets that will be included in the page.
|
|
* @var string[]
|
|
* @package core
|
|
*/
|
|
private static $jsSnippets = [];
|
|
/**
|
|
* The urls of the external javascript files that should be referenced
|
|
* by the page.
|
|
* @var string[]
|
|
* @package core
|
|
*/
|
|
private static $jsLinks = [];
|
|
/**
|
|
* Adds the specified url to a javascript file as a reference to the page.
|
|
* @package core
|
|
* @param string $scriptUrl The url of the javascript file to reference.
|
|
*/
|
|
public function AddJSLink(string $scriptUrl)
|
|
{
|
|
static::$jsLinks[] = $scriptUrl;
|
|
}
|
|
/**
|
|
* Adds a javascript snippet to the page.
|
|
* @package core
|
|
* @param string $script The snippet of javascript to add.
|
|
*/
|
|
public function AddJSSnippet(string $script)
|
|
{
|
|
static::$jsSnippets[] = $script;
|
|
}
|
|
/**
|
|
* Renders the included javascript header for inclusion in the final
|
|
* rendered page.
|
|
* @package core
|
|
* @return string The rendered javascript ready for inclusion in the page.
|
|
*/
|
|
private static function getJS()
|
|
{
|
|
$result = "<!-- Javascript -->\n";
|
|
foreach(static::$jsSnippets as $snippet)
|
|
$result .= "<script defer>\n$snippet\n</script>\n";
|
|
foreach(static::$jsLinks as $link) {
|
|
// Push it via HTTP/2.0 if it's relative
|
|
if($link[0] === "/") self::AddServerPushIndicator("script", $link);
|
|
$result .= "<script src='" . $link . "' defer></script>\n";
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
// ~
|
|
|
|
/**
|
|
* Adds a resource to the list of items to indicate that the web server should send via HTTP/2.0 Server Push.
|
|
* Note: Only specify static files here, as you might end up with strange (and possibly dangerous) results!
|
|
* @param string $type The resource type. See https://fetch.spec.whatwg.org/#concept-request-destination for more information.
|
|
* @param string $path The *relative url path* to the resource.
|
|
*/
|
|
public static function AddServerPushIndicator($type, $path) {
|
|
self::$http2_push_items[] = [ $type, $path ];
|
|
}
|
|
|
|
// ~
|
|
|
|
/**
|
|
* The navigation bar divider.
|
|
* @package core
|
|
* @var string
|
|
*/
|
|
public static $nav_divider = "<span class='nav-divider inflexible'> | </span>";
|
|
|
|
/**
|
|
* Renders a navigation bar from an array of links. See
|
|
* $settings->nav_links for format information.
|
|
* @package core
|
|
* @param array $nav_links The links to add to the navigation bar.
|
|
* @param array $nav_links_extra The extra nav links to add to
|
|
* the "More..." menu.
|
|
* @param string $class The class(es) to assign to the rendered
|
|
* navigation bar.
|
|
*/
|
|
public static function render_navigation_bar($nav_links, $nav_links_extra, $class = "")
|
|
{
|
|
global $settings, $env;
|
|
$result = "<nav class='$class'>\n";
|
|
|
|
// Loop over all the navigation links
|
|
foreach($nav_links as $item)
|
|
{
|
|
if(is_string($item))
|
|
{
|
|
// The item is a string
|
|
switch($item)
|
|
{
|
|
//keywords
|
|
case "user-status": // Renders the user status box
|
|
if($env->is_logged_in)
|
|
{
|
|
$result .= "<span class='inflexible logged-in" . ($env->is_logged_in ? " moderator" : " normal-user") . "'>";
|
|
if(module_exists("feature-user-preferences")) {
|
|
$result .= "<a href='?action=user-preferences'>$settings->user_preferences_button_text</a>";
|
|
}
|
|
$result .= self::render_username($env->user);
|
|
$result .= " <small>(<a href='index.php?action=logout'>Logout</a>)</small>";
|
|
$result .= "</span>";
|
|
//$result .= page_renderer::$nav_divider;
|
|
}
|
|
else {
|
|
$returnto_url = $env->action !== "logout" ? $_SERVER["REQUEST_URI"] : "?action=view&page=" . rawurlencode($settings->defaultpage);
|
|
$result .= "<span class='not-logged-in'><a href='index.php?action=login&returnto=" . rawurlencode($returnto_url) . "'>Login</a></span>";
|
|
}
|
|
break;
|
|
|
|
case "search": // Renders the search bar
|
|
$result .= "<span class='inflexible'><form method='get' action='index.php' style='display: inline;'><input type='search' name='page' list='allpages' placeholder='Type a page name here and hit enter' /><input type='hidden' name='search-redirect' value='true' /></form></span>";
|
|
break;
|
|
|
|
case "divider": // Renders a divider
|
|
$result .= page_renderer::$nav_divider;
|
|
break;
|
|
|
|
case "menu": // Renders the "More..." menu
|
|
$result .= "<span class='inflexible nav-more'><label for='more-menu-toggler'>More...</label>
|
|
<input type='checkbox' class='off-screen' id='more-menu-toggler' />";
|
|
$result .= page_renderer::render_navigation_bar($nav_links_extra, [], "nav-more-menu");
|
|
$result .= "</span>";
|
|
break;
|
|
|
|
// It isn't a keyword, so just output it directly
|
|
default:
|
|
$result .= "<span>$item</span>";
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Output the item as a link to a url
|
|
$result .= "<span><a href='" . str_replace("{page}", rawurlencode($env->page), $item[1]) . "'>$item[0]</a></span>";
|
|
}
|
|
}
|
|
|
|
$result .= "</nav>";
|
|
return $result;
|
|
}
|
|
/**
|
|
* Renders a username for inclusion in a page.
|
|
* @package core
|
|
* @param string $name The username to render.
|
|
* @return string The username rendered in HTML.
|
|
*/
|
|
public static function render_username($name)
|
|
{
|
|
global $settings;
|
|
$result = "";
|
|
$result .= "<a href='?page=" . rawurlencode(get_user_pagename($name)) . "'>";
|
|
if($settings->avatars_show)
|
|
$result .= "<img class='avatar' src='?action=avatar&user=" . urlencode($name) . "&size=$settings->avatars_size' /> ";
|
|
if(in_array($name, $settings->admins))
|
|
$result .= $settings->admindisplaychar;
|
|
$result .= htmlentities($name);
|
|
$result .= "</a>";
|
|
|
|
return $result;
|
|
}
|
|
|
|
// ~
|
|
|
|
/**
|
|
* Renders the datalist for the search box as HTML.
|
|
* @package core
|
|
* @return string The search box datalist as HTML.
|
|
*/
|
|
public static function generate_all_pages_datalist()
|
|
{
|
|
global $settings, $pageindex;
|
|
$arrayPageIndex = get_object_vars($pageindex);
|
|
ksort($arrayPageIndex);
|
|
$result = "<datalist id='allpages'>\n";
|
|
|
|
// If dynamic page sugggestions are enabled, then we should send a loading message instead.
|
|
if($settings->dynamic_page_suggestion_count > 0)
|
|
{
|
|
$result .= "<option value='Loading suggestions...' />";
|
|
}
|
|
else
|
|
{
|
|
foreach($arrayPageIndex as $pagename => $pagedetails)
|
|
{
|
|
$escapedPageName = str_replace('"', '"', $pagename);
|
|
$result .= "\t\t\t<option value=\"$escapedPageName\" />\n";
|
|
}
|
|
}
|
|
$result .= "\t\t</datalist>";
|
|
|
|
return $result;
|
|
}
|
|
}
|
|
|
|
// HTTP/2.0 Server Push static items
|
|
foreach($settings->http2_server_push_items as $push_item) {
|
|
page_renderer::AddServerPushIndicator($push_item[0], $push_item[1]);
|
|
}
|
|
|
|
// Math rendering support
|
|
if(!empty($settings->enable_math_rendering))
|
|
{
|
|
page_renderer::AddJSLink("https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=TeX-MML-AM_CHTML");
|
|
}
|
|
// alt+enter support in the search box
|
|
page_renderer::AddJSSnippet('// Alt + Enter support in the top search box
|
|
window.addEventListener("load", function(event) {
|
|
document.querySelector("input[type=search]").addEventListener("keyup", function(event) {
|
|
// Listen for Alt + Enter
|
|
if(event.keyCode == 13 && event.altKey) {
|
|
event.stopPropagation();
|
|
event.preventDefault();
|
|
event.cancelBubble = true;
|
|
event.target.form.setAttribute("target", "_blank");
|
|
event.target.form.submit();
|
|
event.target.form.removeAttribute("target");
|
|
return false; // Required by some browsers
|
|
}
|
|
});
|
|
});
|
|
');
|
|
|
|
/// Finish setting up the environment object ///
|
|
$env->page = $_GET["page"];
|
|
if(isset($_GET["revision"]) and is_numeric($_GET["revision"]))
|
|
{
|
|
// We have a revision number!
|
|
$env->is_history_revision = true;
|
|
$env->history->revision_number = intval($_GET["revision"]);
|
|
|
|
// Make sure that the revision exists for later on
|
|
if(!isset($pageindex->{$env->page}->history[$env->history->revision_number]))
|
|
{
|
|
http_response_code(404);
|
|
exit(page_renderer::render_main("404: Revision Not Found - $env->page - $settings->sitename", "<p>Revision #{$env->history->revision_number} of $env->page doesn't appear to exist. Try viewing the <a href='?action=history&page=" . rawurlencode($env->page) . "'>list of revisions for $env->page</a>, or viewing <a href='?page=" . rawurlencode($env->page) . "'>the latest revision</a> instead.</p>"));
|
|
}
|
|
|
|
$env->history->revision_data = $pageindex->{$env->page}->history[$env->history->revision_number];
|
|
}
|
|
// Construct the page's filename
|
|
$env->page_filename = $env->storage_prefix;
|
|
if($env->is_history_revision)
|
|
$env->page_filename .= $pageindex->{$env->page}->history[$env->history->revision_number]->filename;
|
|
else if(isset($pageindex->{$env->page}))
|
|
$env->page_filename .= $pageindex->{$env->page}->filename;
|
|
|
|
$env->action = strtolower($_GET["action"]);
|
|
|
|
////////////////////////////////////////////////
|
|
|
|
//////////////////////////////////////
|
|
///// Extra consistency measures /////
|
|
//////////////////////////////////////
|
|
|
|
// CHANGED: The search redirector has now been moved to below the module registration system, as it was causing a warning here
|
|
|
|
// Redirect the user to the login page if:
|
|
// - A login is required to view this wiki
|
|
// - The user isn't already requesting the login page
|
|
// Note we use $_GET here because $env->action isn't populated at this point
|
|
if($settings->require_login_view === true && // If this site requires a login in order to view pages
|
|
!$env->is_logged_in && // And the user isn't logged in
|
|
!in_array($_GET["action"], [ "login", "checklogin", "opensearch-description", "invindex-rebuild", "stats-update" ])) // And the user isn't trying to login, or get the opensearch description, or access actions that apply their own access rules
|
|
{
|
|
// Redirect the user to the login page
|
|
http_response_code(307);
|
|
header("x-login-required: yes");
|
|
$url = "?action=login&returnto=" . rawurlencode($_SERVER["REQUEST_URI"]) . "&required=true";
|
|
header("location: $url");
|
|
exit(page_renderer::render("Login required - $settings->sitename", "<p>$settings->sitename requires that you login before you are able to access it.</p>
|
|
<p><a href='$url'>Login</a>.</p>"));
|
|
}
|
|
//////////////////////////////////////
|
|
//////////////////////////////////////
|
|
|
|
$remote_files = [];
|
|
/**
|
|
* Registers a request for a remote file to be downloaded before execution. Will block until all files are downloaded.
|
|
* Example definition:
|
|
* [ "local_filename" => "file.ext", "remote_url": "https://example.com" ]
|
|
* @param array $remote_file_def The remote file definition to register.
|
|
* @throws Exception Exception Throws an exception if a definition for the requested local file already exists.
|
|
*/
|
|
function register_remote_file($remote_file_def) {
|
|
global $remote_files;
|
|
|
|
foreach($remote_files as $ex_remote_file_def) {
|
|
if($ex_remote_file_def["local_filename"] == $remote_file_def["local_filename"])
|
|
throw new Exception("Error: A remote file with the local filename '{$remote_file_def["local_filename"]}' is already registered.");
|
|
}
|
|
|
|
$remote_files[] = $remote_file_def;
|
|
}
|
|
|
|
//////////////////////////
|
|
/// Module functions ///
|
|
//////////////////////////
|
|
// These functions are //
|
|
// used by modules to //
|
|
// register themselves //
|
|
// or new pages. //
|
|
//////////////////////////
|
|
/** A list of all the currently loaded modules. Not guaranteed to be populated until an action is executed. */
|
|
$modules = [];
|
|
/**
|
|
* Registers a module.
|
|
* @package core
|
|
* @param array $moduledata The module data to register.
|
|
*/
|
|
function register_module($moduledata)
|
|
{
|
|
global $modules;
|
|
//echo("registering module\n");
|
|
//var_dump($moduledata);
|
|
$modules[] = $moduledata;
|
|
}
|
|
/**
|
|
* Checks to see whether a module with the given id exists.
|
|
* @package core
|
|
* @param string $id The id to search for.
|
|
* @return bool Whether a module is currently loaded with the given id.
|
|
*/
|
|
function module_exists($id)
|
|
{
|
|
global $modules;
|
|
foreach($modules as $module)
|
|
{
|
|
if($module["id"] == $id)
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
$actions = new stdClass();
|
|
/**
|
|
* Registers a new action handler.
|
|
* @package core
|
|
* @param string $action_name The action to register.
|
|
* @param function $func The function to call when the specified
|
|
* action is requested.
|
|
*/
|
|
function add_action($action_name, $func)
|
|
{
|
|
global $actions;
|
|
$actions->$action_name = $func;
|
|
}
|
|
/**
|
|
* Figures out whether a given action is currently registered.
|
|
* Only guaranteed to be accurate in inside an existing action function
|
|
* @package core
|
|
* @param string $action_name The name of the action to search for
|
|
* @return boolean Whether an action with the specified name exists.
|
|
*/
|
|
function has_action($action_name)
|
|
{
|
|
global $actions;
|
|
return !empty($actions->$action_name);
|
|
}
|
|
|
|
$parsers = [
|
|
"none" => function() {
|
|
throw new Exception("No parser registered!");
|
|
}
|
|
];
|
|
/**
|
|
* Registers a new parser.
|
|
* @package core
|
|
* @param string $name The name of the new parser to register.
|
|
* @param function $parser_code The function to register as a new parser.
|
|
*/
|
|
function add_parser($name, $parser_code)
|
|
{
|
|
global $parsers;
|
|
if(isset($parsers[$name]))
|
|
throw new Exception("Can't register parser with name '$name' because a parser with that name already exists.");
|
|
|
|
$parsers[$name] = $parser_code;
|
|
}
|
|
/**
|
|
* Parses the specified page source using the parser specified in the settings
|
|
* into HTML.
|
|
* The specified parser may (though it's unilkely) render it to other things.
|
|
* @package core
|
|
* @param string $source The source to render.
|
|
* @return string The source rendered to HTML.
|
|
*/
|
|
function parse_page_source($source)
|
|
{
|
|
global $settings, $parsers;
|
|
if(!isset($parsers[$settings->parser]))
|
|
exit(page_renderer::render_main("Parsing error - $settings->sitename", "<p>Parsing some page source data failed. This is most likely because $settings->sitename has the parser setting set incorrectly. Please contact <a href='mailto:" . hide_email($settings->admindetails_email) . "'>" . $settings->admindetails_name . "</a>, your $settings->sitename Administrator."));
|
|
|
|
/* Not needed atm because escaping happens when saving, not when rendering *
|
|
if($settings->clean_raw_html)
|
|
$source = htmlentities($source, ENT_QUOTES | ENT_HTML5);
|
|
*/
|
|
return $parsers[$settings->parser]($source);
|
|
}
|
|
|
|
// Function to
|
|
$save_preprocessors = [];
|
|
/**
|
|
* Register a new proprocessor that will be executed just before
|
|
* an edit is saved.
|
|
* @package core
|
|
* @param function $func The function to register.
|
|
*/
|
|
function register_save_preprocessor($func)
|
|
{
|
|
global $save_preprocessors;
|
|
$save_preprocessors[] = $func;
|
|
}
|
|
|
|
$help_sections = [];
|
|
/**
|
|
* Adds a new help section to the help page.
|
|
* @package core
|
|
* @param string $index The string to index the new section under.
|
|
* @param string $title The title to display above the section.
|
|
* @param string $content The content to display.
|
|
*/
|
|
function add_help_section($index, $title, $content)
|
|
{
|
|
global $help_sections;
|
|
|
|
$help_sections[$index] = [
|
|
"title" => $title,
|
|
"content" => $content
|
|
];
|
|
}
|
|
|
|
if(!empty($settings->enable_math_rendering))
|
|
add_help_section("22-mathematical-mxpressions", "Mathematical Expressions", "<p>$settings->sitename supports rendering of mathematical expressions. Mathematical expressions can be included practically anywhere in your page. Expressions should be written in LaTeX and enclosed in dollar signs like this: <code>$x^2$</code>.</p>
|
|
<p>Note that expression parsing is done on the viewer's computer with javascript (specifically MathJax) and not by $settings->sitename directly (also called client side rendering).</p>");
|
|
|
|
/** An array of the currently registerd statistic calculators. Not guaranteed to be populated until the requested action function is called. */
|
|
$statistic_calculators = [];
|
|
/**
|
|
* Registers a statistic calculator against the system.
|
|
* @package core
|
|
* @param array $stat_data The statistic object to register.
|
|
*/
|
|
function statistic_add($stat_data) {
|
|
global $statistic_calculators;
|
|
$statistic_calculators[$stat_data["id"]] = $stat_data;
|
|
}
|
|
/**
|
|
* Checks whether a specified statistic has been registered.
|
|
* @package core
|
|
* @param string $stat_id The id of the statistic to check the existence of.
|
|
* @return boolean Whether the specified statistic has been registered.
|
|
*/
|
|
function has_statistic($stat_id) {
|
|
global $statistic_calculators;
|
|
return !empty($statistic_calculators[$stat_id]);
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////
|
|
|
|
// %next_module% //
|
|
|
|
//////////////////////////////////////////////////////////////////
|
|
|
|
// Execute each module's code
|
|
foreach($modules as $moduledata)
|
|
{
|
|
$moduledata["code"]();
|
|
}
|
|
// Make sure that the credits page exists
|
|
if(!isset($actions->credits))
|
|
{
|
|
exit(page_renderer::render_main("Error - $settings->$sitename", "<p>No credits page detected. The credits page is a required module!</p>"));
|
|
}
|
|
|
|
// Download all the requested remote files
|
|
ini_set("user_agent", "$settings->sitename (Pepperminty-Wiki-Downloader; PHP/" . phpversion() . "; +https://github.com/sbrl/Pepperminty-Wiki/) Pepperminty-Wiki/$version");
|
|
foreach($remote_files as $remote_file_def) {
|
|
if(file_exists($remote_file_def["local_filename"]) && filesize($remote_file_def["local_filename"]) > 0)
|
|
continue;
|
|
|
|
error_log("[ Pepperminty-Wiki/$settings->sitename ] Downloading {$remote_file_def["local_filename"]} from {$remote_file_def["remote_url"]}");
|
|
file_put_contents($remote_file_def["local_filename"], fopen($remote_file_def["remote_url"], "rb"));
|
|
}
|
|
|
|
//////////////////////////////////
|
|
/// Final Consistency Measures ///
|
|
//////////////////////////////////
|
|
|
|
if(!isset($pageindex->{$env->page}) && isset($pageindex->{ucwords($env->page)})) {
|
|
http_response_code(307);
|
|
header("location: ?page=" . ucwords($env->page));
|
|
header("content-type: text/plain");
|
|
exit("$env->page doesn't exist on $settings->sitename, but " . ucwords($env->page) . " does. You should be redirected there automatically.");
|
|
}
|
|
|
|
// Redirect to the search page if there isn't a page with the requested name
|
|
if(!isset($pageindex->{$env->page}) and isset($_GET["search-redirect"]))
|
|
{
|
|
http_response_code(307);
|
|
$url = "?action=search&query=" . rawurlencode($env->page);
|
|
header("location: $url");
|
|
exit(page_renderer::render_minimal("Non existent page - $settings->sitename", "<p>There isn't a page on $settings->sitename with that name. However, you could <a href='$url'>search for this page name</a> in other pages.</p>
|
|
<p>Alternatively, you could <a href='?action=edit&page=" . rawurlencode($env->page) . "&create=true'>create this page</a>.</p>"));
|
|
}
|
|
|
|
//////////////////////////////////
|
|
|
|
|
|
// Perform the appropriate action
|
|
$action_name = $env->action;
|
|
if(isset($actions->$action_name))
|
|
{
|
|
$req_action_data = $actions->$action_name;
|
|
$req_action_data();
|
|
}
|
|
else
|
|
{
|
|
exit(page_renderer::render_main("Error - $settings->sitename", "<p>No action called " . strtolower($_GET["action"]) ." has been registered. Perhaps you are missing a module?</p>"));
|
|
}
|
|
|
|
?>
|