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@ 182b6be0813e
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Location: SlatePermutate/ajax.php
182b6be0813e
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text/x-php
Fix the support for automatic WebAdvisor registration to not enter infinite loops.
The automatic registration process used to enter an infinite loop
every time it was used if the user had been previously issued a
TOKENIDX by WebAdvisor. This means that it would work the first time
in most cases but rarely a second time, if ever. Now we use
LASTTOKEN=NULL instead of TOKENIDX= to request a new token and it
works pretty well.
The automatic registration process used to enter an infinite loop
every time it was used if the user had been previously issued a
TOKENIDX by WebAdvisor. This means that it would work the first time
in most cases but rarely a second time, if ever. Now we use
LASTTOKEN=NULL instead of TOKENIDX= to request a new token and it
works pretty well.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 | <?php /* -*- mode: php; -*- */
/*
* Copyright 2011 Nathan Phillip Brink <ohnobinki@ohnopublishing.net>
*
* This file is a part of slate_permutate.
*
* slate_permutate is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* slate_permutate is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with slate_permutate. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* \file
* This file is an endpoint for generic AJAX requests (as opposed to
* autocompletion of course names).
*/
require_once('inc/school.inc');
require_once('inc/class.page.php');
require_once('inc/class.course.inc');
page::session_start();
/* should the following block of code be moved into a proposed Page::json()? */
if (isset($_REQUEST['txt'])) {
header('Content-Type: text/plain; encoding=utf-8');
}
else {
header('Content-Type: application/json; encoding=utf-8');
}
/**
* \brief
* Wrap an error message up in JSON and send it.
*
* \param $message
* A valid XHTML fragment which will be wrapped in <div class="error" />
*/
function slate_permutate_json_error($message)
{
echo json_encode(array('success' => FALSE, 'message' => '<div class="error">' . $message . '</div>'));
exit;
}
/**
* \brief
* Send a successful JSON response.
*
* \param $data
* A PHP array to be encoded with json_encode() and sent as
* obj.data.
*/
function slate_permutate_json_success(array $data = array())
{
echo json_encode(array('success' => TRUE, 'data' => $data));
exit;
}
if (isset($_REQUEST['school_registration_html']))
{
/*
* Since we're just an AJAX callback, ask school_load_guess() not
* to update $_SESSION with the school the user is using... And
* make sure that the frontend actually tells us what school the
* user is using ;-).
*/
$school = school_load_guess(FALSE);
if (empty($school))
slate_permutate_json_error('Unable to load any school.');
$page = page::page_create('');
$courses = array();
if (!empty($_REQUEST['courses']) && is_array($_REQUEST['courses']))
{
/*
* The below course deserialization blob should be moved into
* the Course object.
*/
foreach ($_REQUEST['courses'] as $course_json)
{
$course = Course::from_json_array($course_json);
if (!empty($course))
$courses[] = $course;
}
}
$html = school_registration_html($page, $school, $courses);
if (empty($html))
slate_permutate_json_error('School\'s registration information producer returned no data.');
slate_permutate_json_success(is_array($html) ? $html : array('html' => $html));
}
slate_permutate_json_error('Unrecognized command.');
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