date.chapril.org-framadate/app/classes/Framadate/Services/PollService.php

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<?php
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/**
* This software is governed by the CeCILL-B license. If a copy of this license
* is not distributed with this file, you can obtain one at
* http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.txt
*
* Authors of STUdS (initial project): Guilhem BORGHESI (borghesi@unistra.fr) and Raphaël DROZ
* Authors of Framadate/OpenSondage: Framasoft (https://github.com/framasoft)
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*
* =============================
*
* Ce logiciel est régi par la licence CeCILL-B. Si une copie de cette licence
* ne se trouve pas avec ce fichier vous pouvez l'obtenir sur
* http://www.cecill.info/licences/Licence_CeCILL-B_V1-fr.txt
*
* Auteurs de STUdS (projet initial) : Guilhem BORGHESI (borghesi@unistra.fr) et Raphaël DROZ
* Auteurs de Framadate/OpenSondage : Framasoft (https://github.com/framasoft)
*/
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namespace Framadate\Services;
use Framadate\Exception\AlreadyExistsException;
use Framadate\Exception\ConcurrentEditionException;
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use Framadate\Form;
use Framadate\FramaDB;
use Framadate\Repositories\RepositoryFactory;
use Framadate\Security\Token;
use Framadate\Utils;
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class PollService {
private $connect;
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private $logService;
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private $pollRepository;
private $slotRepository;
private $voteRepository;
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private $commentRepository;
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function __construct(FramaDB $connect, LogService $logService) {
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$this->connect = $connect;
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$this->logService = $logService;
$this->pollRepository = RepositoryFactory::pollRepository();
$this->slotRepository = RepositoryFactory::slotRepository();
$this->voteRepository = RepositoryFactory::voteRepository();
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$this->commentRepository = RepositoryFactory::commentRepository();
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}
/**
* Find a poll from its ID.
*
* @param $poll_id int The ID of the poll
* @return \stdClass|null The found poll, or null
*/
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function findById($poll_id) {
if (preg_match(POLL_REGEX, $poll_id)) {
return $this->pollRepository->findById($poll_id);
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}
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return null;
}
public function findByAdminId($admin_poll_id) {
if (preg_match(ADMIN_POLL_REGEX, $admin_poll_id)) {
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return $this->pollRepository->findByAdminId($admin_poll_id);
}
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return null;
}
function allCommentsByPollId($poll_id) {
return $this->commentRepository->findAllByPollId($poll_id);
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}
function allVotesByPollId($poll_id) {
return $this->voteRepository->allUserVotesByPollId($poll_id);
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}
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function allSlotsByPoll($poll) {
$slots = $this->slotRepository->listByPollId($poll->id);
if ($poll->format === 'D') {
$this->sortSlorts($slots);
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}
return $slots;
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}
public function updateVote($poll_id, $vote_id, $name, $choices, $slots_hash) {
$poll = $this->findById($poll_id);
// Check if slots are still the same
$this->checkThatSlotsDidntChanged($poll, $slots_hash);
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// Update vote
$choices = implode($choices);
return $this->voteRepository->update($poll_id, $vote_id, $name, $choices);
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}
function addVote($poll_id, $name, $choices, $slots_hash) {
$poll = $this->findById($poll_id);
// Check if slots are still the same
$this->checkThatSlotsDidntChanged($poll, $slots_hash);
// Check if vote already exists
if ($this->voteRepository->existsByPollIdAndName($poll_id, $name)) {
throw new AlreadyExistsException();
}
// Insert new vote
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$choices = implode($choices);
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$token = $this->random(16);
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return $this->voteRepository->insert($poll_id, $name, $choices, $token);
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}
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function addComment($poll_id, $name, $comment) {
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if ($this->commentRepository->exists($poll_id, $name, $comment)) {
return true;
}
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return $this->commentRepository->insert($poll_id, $name, $comment);
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}
/**
* @param Form $form
* @return string
*/
function createPoll(Form $form) {
// Generate poll IDs, loop while poll ID already exists
if (empty($form->id)) { // User want us to generate an id for him
do {
$poll_id = $this->random(16);
} while ($this->pollRepository->existsById($poll_id));
$admin_poll_id = $poll_id . $this->random(8);
} else { // User have choosen the poll id
$poll_id = $form->id;
do {
$admin_poll_id = $this->random(24);
} while ($this->pollRepository->existsByAdminId($admin_poll_id));
}
// Insert poll + slots
$this->pollRepository->beginTransaction();
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$this->pollRepository->insertPoll($poll_id, $admin_poll_id, $form);
$this->slotRepository->insertSlots($poll_id, $form->getChoices());
$this->pollRepository->commit();
$this->logService->log('CREATE_POLL', 'id:' . $poll_id . ', title: ' . $form->title . ', format:' . $form->format . ', admin:' . $form->admin_name . ', mail:' . $form->admin_mail);
return [$poll_id, $admin_poll_id];
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}
public function findAllByAdminMail($mail) {
return $this->pollRepository->findAllByAdminMail($mail);
}
function computeBestChoices($votes) {
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$result = ['y' => [0], 'inb' => [0]];
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foreach ($votes as $vote) {
$choices = str_split($vote->choices);
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foreach ($choices as $i => $choice) {
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if (!isset($result['y'][$i])) {
$result['inb'][$i] = 0;
$result['y'][$i] = 0;
}
if ($choice === 1) {
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$result['inb'][$i]++;
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}
if ($choice === 2) {
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$result['y'][$i]++;
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}
}
}
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return $result;
}
function splitSlots($slots) {
$splitted = [];
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foreach ($slots as $slot) {
$obj = new \stdClass();
$obj->day = $slot->title;
$obj->moments = explode(',', $slot->moments);
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$splitted[] = $obj;
}
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return $splitted;
}
/**
* @param $slots array The slots to hash
* @return string The hash
*/
public function hashSlots($slots) {
return md5(array_reduce($slots, function($carry, $item) {
return $carry . $item->id . '@' . $item->moments . ';';
}));
}
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function splitVotes($votes) {
$splitted = [];
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foreach ($votes as $vote) {
$obj = new \stdClass();
$obj->id = $vote->id;
$obj->name = $vote->name;
$obj->uniqId = $vote->uniqId;
$obj->choices = str_split($vote->choices);
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$splitted[] = $obj;
}
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return $splitted;
}
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/**
* @return int The max timestamp allowed for expiry date
*/
public function maxExpiryDate() {
global $config;
return time() + (86400 * $config['default_poll_duration']);
}
/**
* @return int The min timestamp allowed for expiry date
*/
public function minExpiryDate() {
return time() + 86400;
}
/**
* @return mixed
*/
public function sortSlorts(&$slots) {
uasort($slots, function ($a, $b) {
return $a->title > $b->title;
});
return $slots;
}
private function random($length) {
return Token::getToken($length);
}
/**
* This method checks if the hash send by the user is the same as the computed hash.
*
* @param $poll /stdClass The poll
* @param $slots_hash string The hash sent by the user
* @throws ConcurrentEditionException Thrown when hashes are differents
*/
private function checkThatSlotsDidntChanged($poll, $slots_hash) {
$slots = $this->allSlotsByPoll($poll);
if ($slots_hash !== $this->hashSlots($slots)) {
throw new ConcurrentEditionException();
}
}
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}