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syntax.php
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<?php
/**
* Doodle Plugin 3: helps to schedule meetings
*
* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
* @url http://www.dokuwiki.org/plugin:doodle3
* @author Matthias Jung <[email protected]>
* @author Robert Rackl <[email protected]>
* @author Jonathan Tsai <[email protected]>
* @author Esther Brunner <[email protected]>
* @author Romain Coltel <[email protected]>
*/
if(!defined('DOKU_INC')) define('DOKU_INC',realpath(dirname(__FILE__).'/../../').'/');
if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
require_once(DOKU_PLUGIN.'syntax.php');
/**
* Displays a table where users can vote for some predefined choices
* Syntax:
*
* <pre>
* <doodle
* title="What do you like best?"
* auth="none|ip|user"
* adminUsers="user1|user2"
* adminGroups="group1|group2"
* voteType="default|multi"
* fieldwidth="auto|123px"
* closed="true|false" >
* * Option 1
* * Option 2 **some wikimarkup** \\ is __allowed__!
* * Option 3
* </doodle>
* </pre>
*
* Only required parameteres are a title and at least one option.
*
* <h3>Parameters</h3>
* auth="none" - everyone can vote with any username, (IPs will be recorded but not checked)
* auth="ip" - everyone can vote with any username, votes will be tracked by IP to prevent duplicate voting
* auth="user" - users must login with a valid dokuwiki user. This has the advantage, that users can
* edit their vote ("change their mind") later on.
*
* <h3>adminUsers and adminGroups</h3>
* "|"-separated list of adminUsers or adminGroups, whose members can always edit and delete <b>any</b> entry.
*
* <h3>Vote Type</h3>
* default - user can vote for exactly one option (round checkboxes will be shown)
* multi - can choose any number of options, including none (square checkboxes will be shown).
*
* <h3>fieldwidth</h3>
* auto - width of option columns is determined by content (css: width:auto)
* 123px - width of all option columns is set to provided value (e.g. css: width:123px)
valid values must match regexp: /^[0-9]+px$/ (see https://regex101.com/r/yKOhAo/1 for details)
*
* If closed=="true", then no one can vote anymore. The result will still be shown on the page.
*
* The doodle's data is saved in '<dokuwiki>/data/meta/title_of_vote.doodle'. The filename is the (masked) title.
* This has the advantage that you can move your doodle to another page, without loosing the data.
*/
class syntax_plugin_doodle3 extends DokuWiki_Syntax_Plugin
{
const AUTH_NONE = 0;
const AUTH_IP = 1;
const AUTH_USER = 2;
/**
* return info about this plugin
*/
function getInfo() {
return array(
'author' => 'Matthias Jung',
'email' => '[email protected]',
'date' => '2017/03/30',
'name' => 'Doodle Plugin 3',
'desc' => 'helps to schedule meetings',
'url' => 'https://www.dokuwiki.org/plugin:doodle3',
);
}
function getType() { return 'substition';}
function getPType() { return 'block';}
function getSort() { return 168; }
/**
* Connect pattern to lexer
*/
function connectTo($mode) {
$this->Lexer->addSpecialPattern('<doodle\b.*?>.+?</doodle>', $mode, 'plugin_doodle3');
}
/**
* Handle the match, parse parameters & choices
* and prepare everything for the render() method.
*/
function handle($match, $state, $pos, Doku_Handler $handler) {
$match = substr($match, 8, -9); // strip markup (including space after "<doodle ")
list($parameterStr, $choiceStr) = preg_split('/>/u', $match, 2);
//----- default parameter settings
$params = array(
'title' => 'Default title',
'auth' => self::AUTH_NONE,
'adminUsers' => '',
'adminGroups' => '',
'adminMail' => null,
'voteType' => 'default',
'closed' => FALSE,
'fieldwidth' => 'auto'
);
//----- parse parameteres into name="value" pairs
preg_match_all("/(\w+?)=\"(.*?)\"/", $parameterStr, $regexMatches, PREG_SET_ORDER);
//debout($parameterStr);
//debout($regexMatches);
for ($i = 0; $i < count($regexMatches); $i++) {
$name = strtoupper($regexMatches[$i][1]); // first subpattern: name of attribute in UPPERCASE
$value = $regexMatches[$i][2]; // second subpattern is value
if (strcmp($name, "TITLE") == 0) {
$params['title'] = hsc(trim($value));
} else
if (strcmp($name, "AUTH") == 0) {
if (strcasecmp($value, 'IP') == 0) {
$params['auth'] = self::AUTH_IP;
} else
if (strcasecmp($value, 'USER') == 0) {
$params['auth'] = self::AUTH_USER;
}
} else
if (strcmp($name, "ADMINUSERS") == 0) {
$params['adminUsers'] = $value;
} else
if (strcmp($name, "ADMINGROUPS") == 0) {
$params['adminGroups'] = $value;
} else
if (strcmp($name, "ADMINMAIL") == 0) {
// check for valid email adress
if (preg_match('/^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,5})$/', $value)) {
$params['adminMail'] = $value;
}
} else
if (strcmp($name, "VOTETYPE") == 0) {
if (preg_match('/default|multi/', $value)) {
$params['voteType'] = $value;
}
} else
if ((strcmp($name, "CLOSEON") == 0) &&
(($timestamp = strtotime($value)) !== false) &&
(time() > $timestamp) )
{
$params['closed'] = 1;
} else
if (strcmp($name, "CLOSED") == 0) {
if (strcasecmp($value, "TRUE") == 0) {
$params['closed'] = 1;
} else if ($time = strtotime($value)) {
if ($time < time()) $params['closed'] = 1;
} else {
$params['closed'] = 0;
}
} else
if (strcmp($name, "SORT") == 0) {
$params['sort'] = $value; // make it possible to sort by time
} else
if (strcmp($name, "FIELDWIDTH") == 0) {
if (preg_match("/^[0-9]+px$/",$value,$hit) == 1)
$params['fieldwidth'] = $hit[0];
}
}
// (If there are no choices inside the <doodle> tag, then doodle's data will be reset.)
$choices = $this->parseChoices($choiceStr);
$result = array('params' => $params, 'choices' => $choices);
//debout('handle returns', $result);
return $result;
}
/**
* parse list of choices
* explode, trim and encode html entities,
* empty choices will be skipped.
*/
function parseChoices($choiceStr) {
$choices = array();
preg_match_all('/^\s{0,3}\* (.*?)$/m', $choiceStr, $matches, PREG_PATTERN_ORDER);
foreach ($matches[1] as $choice) {
$choice = hsc(trim($choice));
if (!empty($choice)) {
$choice = preg_replace('#\\\\\\\\#', '<br />', $choice); # two(!) backslashes for a newline
$choice = preg_replace('#\*\*(.*?)\*\*#', '<b>\1</b>', $choice); # bold
$choice = preg_replace('#__(.*?)__#', '<u>\1</u>', $choice); # underscore
$choice = preg_replace('#//(.*?)//#', '<i>\1</i>', $choice); # italic
$choices []= $choice;
}
}
//debout($choices);
return $choices;
}
// ----- these fields will always be initialized at the beginning of the render function
// and can then be used in helper functions below.
public $params = array();
public $choices = array();
public $doodle = array();
public $template = array(); // output values for doodle_template.php
/**
* Read doodle data from file,
* add new vote if user just submitted one and
* create output xHTML from template
*/
function render($mode, Doku_Renderer $renderer, $data) {
if ($mode != 'xhtml') return false;
//debout("render: $mode");
global $lang;
global $auth;
global $conf;
global $INFO; // needed for users real name
global $ACT; // action from $_REQUEST['do']
global $REV; // to not allow any action if it's an old page
global $ID; // name of current page
//debout('data in render', $data);
$this->params = $data['params'];
$this->choices = $data['choices'];
$this->doodle = array();
$this->template = array();
// prevent caching to ensure the poll results are fresh
$renderer->info['cache'] = false;
// ----- read doodle data from file (if there are choices given and there is a file)
if (count($this->choices) > 0) {
$this->doodle = $this->readDoodleDataFromFile();
}
//FIXME: count($choices) may be different from number of choices in $doodle data!
// ----- FORM ACTIONS (only allowed when showing the most recent version of the page, not when editing) -----
$formId = 'doodle__form__'.cleanID($this->params['title']);
if ($ACT == 'show' && $_REQUEST['formId'] == $formId && $REV == false) {
// ---- cast new vote
if (!empty($_REQUEST['cast__vote'])) {
$this->castVote();
} else
// ---- start editing an entry
if (!empty($_REQUEST['edit__entry']) ) {
$this->startEditEntry();
} else
// ---- save changed entry
if (!empty($_REQUEST['change__vote']) ) {
$this->castVote();
} else
// ---- delete an entry completely
if (!empty($_REQUEST['delete__entry']) ) {
$this->deleteEntry();
}
}
/******** Format of the $doodle array ***********
* The $doodle array maps fullnames (with html special characters masked) to an array of userData for this vote.
* Each sub array contains:
* 'username' loggin name if use was logged in
* 'choices' is an (variable length!) array of column indexes where user has voted
* 'ip' ip of voting machine
* 'time' unix timestamp when vote was casted
$doodle = array(
'Robert' => array(
'username' => 'doogie'
'choices' => array(0, 3),
'ip' => '123.123.123.123',
'time' => 1284970602
),
'Peter' => array(
'choices' => array(),
'ip' => '222.122.111.1',
'time' > 12849702333
),
'Sabine' => array(
'choices' => array(0, 1, 2, 3, 4),
'ip' => '333.333.333.333',
'time' => 1284970222
),
);
*/
// ---- fill $this->template variable for doodle_template.php (column by column)
$this->template['title'] = hsc($this->params['title']);
$this->template['choices'] = $this->choices;
$this->template['result'] = $this->params['closed'] ? $this->getLang('final_result') : $this->getLang('count');
$this->template['doodleData'] = array(); // this will be filled with some HTML snippets
$this->template['formId'] = $formId;
$this->template['fieldwidth'] = $this->params['fieldwidth'];
if ($this->params['closed']) {
$this->template['msg'] = $this->getLang('poll_closed');
}
for($col = 0; $col < count($this->choices); $col++) {
$this->template['count'][$col] = 0;
foreach ($this->doodle as $fullname => $userData) {
if (!empty($userData['username'])) {
$this->template['doodleData']["$fullname"]['username'] = ' ('.$userData['username'].')';
}
if (in_array($col, $userData['choices'])) {
$timeLoc = strftime($conf['dformat'], $userData['time']); // localized time of vote
$this->template['doodleData']["$fullname"]['choice'][$col] =
'<td class="centeralign" style="background-color:#AFA"><img src="'.DOKU_BASE.'lib/images/success.png" title="'.$timeLoc.'"></td>';
$this->template['count']["$col"]++;
} else {
$this->template['doodleData']["$fullname"]['choice'][$col] =
'<td class="centeralign" style="background-color:#FCC"> </td>';
}
}
}
// ---- add edit link to editable entries
foreach($this->doodle as $fullname => $userData) {
if ($ACT == 'show' && $REV == false &&
$this->isAllowedToEditEntry($fullname))
{
// the javascript source of these functions is in script.js
$this->template['doodleData']["$fullname"]['editLinks'] =
'<a href="javascript:editEntry(\''.$formId.'\',\''.$fullname.'\')">'.
' <img src="'.DOKU_BASE.'lib/plugins/doodle3/pencil.png" alt="edit entry" style="float:left">'.
'</a>'.
'<a href="javascript:deleteEntry(\''.$formId.'\',\''.$fullname.'\')">'.
' <img src="'.DOKU_BASE.'lib/plugins/doodle3/delete.png" alt="delete entry" style="float:left">'.
'</a>';
}
}
// ---- calculates if user is allowed to vote
$this->template['inputTR'] = $this->getInputTR();
// ----- I am using PHP as a templating engine here.
//debout("Template", $this->template);
ob_start();
include 'doodle_template.php'; // the array $template can be used inside doodle_template.php!
$doodle_table = ob_get_contents();
ob_end_clean();
$renderer->doc .= $doodle_table;
}
// --------------- FORM ACTIONS -----------
/**
* ACTION: cast a new vote
* or save a changed vote
* (If user is allowed to.)
*/
function castVote() {
$fullname = hsc(trim($_REQUEST['fullname']));
$selected_indexes = $_REQUEST['selected_indexes']; // may not be set when all checkboxes are deseleted.
if (empty($fullname)) {
$this->template['msg'] = $this->getLang('dont_have_name');
return;
}
if (empty($selected_indexes)) {
if ($this->params['voteType'] == 'multi') {
$selected_indexes = array(); //allow empty vote only if voteType is "multi"
} else {
$this->template['msg'] = $this->getLang('select_one_option');
return;
}
}
//---- check if user is allowed to vote, according to 'auth' parameter
//if AUTH_USER, then user must be logged in
if ($this->params['auth'] == self::AUTH_USER && !$this->isLoggedIn()) {
$this->template['msg'] = $this->getLang('must_be_logged_in');
return;
}
//if AUTH_IP, then prevent duplicate votes by IP.
//Exception: If user is logged in he is always allowed to change the vote with his fullname, even if he is on another IP.
if ($this->params['auth'] == self::AUTH_IP && !$this->isLoggedIn() && !isset($_REQUEST['change__vote']) ) {
foreach($this->doodle as $existintFullname => $userData) {
if (strcmp($userData['ip'], $_SERVER['REMOTE_ADDR']) == 0) {
$this->template['msg'] = sprintf($this->getLang('ip_has_already_voted'), $_SERVER['REMOTE_ADDR']);
return;
}
}
}
//do not vote twice, unless change__vote is set
if (isset($this->doodle["$fullname"]) && !isset($_REQUEST['change__vote']) ) {
$this->template['msg'] = $this->getLang('you_voted_already');
return;
}
//check if change__vote is allowed
if (!empty($_REQUEST['change__vote']) &&
!$this->isAllowedToEditEntry($fullname))
{
$this->template['msg'] = $this->getLang('not_allowed_to_change');
return;
}
if (!empty($_SERVER['REMOTE_USER'])) {
$this->doodle["$fullname"]['username'] = $_SERVER['REMOTE_USER'];
}
$this->doodle["$fullname"]['choices'] = $selected_indexes;
$this->doodle["$fullname"]['time'] = time();
$this->doodle["$fullname"]['ip'] = $_SERVER['REMOTE_ADDR'];
$this->writeDoodleDataToFile();
$this->template['msg'] = $this->getLang('vote_saved');
//send mail if $params['adminMail'] is filled
if (!empty($this->params['adminMail'])) {
$subj = "[DoodlePlugin] Vote casted by $fullname (".$this->doodle["$fullname"]['username'].')';
$body = 'User has casted a vote'."\n\n".print_r($this->doodle["$fullname"], true);
mail_send($this->params['adminMail'], $subj, $body, $conf['mailfrom']);
}
}
/**
* ACTION: start editing an entry
* expects fullname of voter in request param edit__entry
*/
function startEditEntry() {
$fullname = hsc(trim($_REQUEST['edit__entry']));
if (!$this->isAllowedToEditEntry($fullname)) return;
$this->template['editEntry']['fullname'] = $fullname;
$this->template['editEntry']['selected_indexes'] = $this->doodle["$fullname"]['choices'];
// $fullname will be shown in the input row
}
/** ACTION: delete an entry completely */
function deleteEntry() {
$fullname = hsc(trim($_REQUEST['delete__entry']));
if (!$this->isAllowedToEditEntry($fullname)) return;
unset($this->doodle["$fullname"]);
$this->writeDoodleDataToFile();
$this->template['msg'] = $this->getLang('vote_deleted');
}
// ---------- HELPER METHODS -----------
/**
* check if the currently logged in user is allowed to edit a given entry.
* @return true if entryFullname is the entry of the current user, or
* the currently logged in user is in the list of admins
*/
function isAllowedToEditEntry($entryFullname) {
global $INFO;
global $auth;
if (empty($entryFullname)) return false;
if (!isset($this->doodle["$entryFullname"])) return false;
if ($this->params['closed']) return false;
if (!$this->isLoggedIn()) return false;
$allowFlag = false;
//check adminGroups
if (!empty($this->params['adminGroups'])) {
$adminGroups = explode('|', $this->params['adminGroups']); // array of adminGroups
$usersGroups = $INFO['userinfo']['grps']; // array of groups that the user is in
if(count(array_intersect($adminGroups, $usersGroups)) > 0) $allowFlag = true;
}
//check adminUsers
if (!empty($this->params['adminUsers'])) {
$adminUsers = explode('|', $this->params['adminUsers']);
if(in_array($_SERVER['REMOTE_USER'], $adminUsers)) $allowFlag = true;
}
//check own entry
if(strcasecmp(hsc($INFO['userinfo']['name']), $entryFullname) == 0) $allowFlag = true; // compare real name
return $allowFlag;
}
/**
* return true if the user is currently logged in
*/
function isLoggedIn() {
// see http://www.dokuwiki.org/devel:environment
global $INFO;
return isset($INFO['userinfo']);
}
/**
* calculate the input table row:
* @return complete <TR> tags for input row and information message
* May return empty string, if user is not allowed to vote
*
* If user is logged in he is always allowed edit his own entry. ("change his mind")
* If user is logged in and has already voted, empty string will be returned.
* If user is not logged in but login is required (auth="user"), then also return '';
*/
function getInputTR() {
global $ACT;
global $INFO;
if ($ACT != 'show') return '';
if ($this->params['closed']) return '';
$fullname = '';
$editMode = false;
if ($this->isLoggedIn()) {
$fullname = $INFO['userinfo']['name'];
if (isset($this->template['editEntry'])) {
$fullname = $this->template['editEntry']['fullname'];
$editMode = true;
} else {
if (isset($this->doodle["$fullname"]) ) return '';
}
} else {
if ($this->params['auth'] == self::AUTH_USER) return '';
}
// build html for tr
$c = count($this->choices);
$TR = '';
//$TR .= '<tr style="height:3px"><th colspan="'.($c+1).'"></th></tr>';
$TR .= '<tr>';
$TR .= '<td class="rightalign">';
if ($fullname) {
if ($editMode) $TR .= $this->getLang('edit').': ';
$TR .= $fullname.' ('.$_SERVER['REMOTE_USER'].')';
$TR .= '<input type="hidden" name="fullname" value="'.$fullname.'">';
} else {
$TR .= '<input type="text" name="fullname" value="">';
}
$TR .='</td>';
for($col = 0; $col < $c; $col++) {
$selected = '';
if ($editMode && in_array($col, $this->template['editEntry']['selected_indexes']) ) {
$selected = 'checked="checked"';
}
$TR .= '<td class="centeralign">';
if ($this->params['voteType'] == 'multi') {
$inputType = "checkbox";
} else {
$inputType = "radio";
}
$TR .= '<input type="'.$inputType.'" name="selected_indexes[]" value="'.$col.'"';
$TR .= $selected.">";
$TR .= '</TD>';
}
$TR .= '</tr>';
$TR .= '<tr>';
$TR .= ' <td colspan="'.($c+1).'" class="centeralign">';
if ($editMode) {
$TR .= ' <input type="submit" id="voteButton" value=" '.$this->getLang('btn_change').' " name="change__vote" class="button">';
} else {
$TR .= ' <input type="submit" id="voteButton" value=" '.$this->getLang('btn_vote').' " name="cast__vote" class="button">';
}
$TR .= ' </td>';
$TR .= '</tr>';
return $TR;
}
/**
* Loads the serialized doodle data from the file in the metadata directory.
* If the file does not exist yet, an empty array is returned.
* @return the $doodle array
* @see writeDoodleDataToFile()
*/
function readDoodleDataFromFile() {
$dfile = $this->getDoodleFileName();
$doodle = array();
if (file_exists($dfile)) {
$doodle = unserialize(file_get_contents($dfile));
}
//sanitize: $doodle[$fullnmae]['choices'] must be at least an array
// This may happen if user deselected all choices
foreach($doodle as $fullname => $userData) {
if (!is_array($doodle["$fullname"]['choices'])) {
$doodle["$fullname"]['choices'] = array();
}
}
if (strcmp($this->params['sort'], 'time') == 0) {
debout("sorting by time");
uasort($doodle, 'cmpEntryByTime');
} else {
uksort($doodle, "strnatcasecmp"); // case insensitive "natural" sort
}
//debout("read from $dfile", $doodle);
return $doodle;
}
/**
* serialize the doodles data to a file
*/
function writeDoodleDataToFile() {
if (!is_array($this->doodle)) return;
$dfile = $this->getDoodleFileName();
uksort($this->doodle, "strnatcasecmp"); // case insensitive "natural" sort
io_saveFile($dfile, serialize($this->doodle));
//debout("written to $dfile", $doodle);
return $dfile;
}
/**
* create unique filename for this doodle from its title.
* (replaces space with underscore etc.)
*/
function getDoodleFileName() {
if (empty($this->params['title'])) {
debout('Doodle must have title.');
return 'doodle.doodle';
}
$dID = hsc(trim($this->params['title']));
$dfile = metaFN($dID, '.doodle'); // serialized doodle data file in meta directory
return $dfile;
}
} // end of class
// ----- static functions
/** compare two doodle entries by the time of vote */
function cmpEntryByTime($a, $b) {
return strcmp($a['time'], $b['time']);
}
function debout() {
if (func_num_args() == 1) {
msg('<pre>'.hsc(print_r(func_get_arg(0), true)).'</pre>');
} else if (func_num_args() == 2) {
msg('<h2>'.func_get_arg(0).'</h2><pre>'.hsc(print_r(func_get_arg(1), true)).'</pre>');
}
}
?>