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1<?php
2
3/**
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; under version 2
7 * of the License (non-upgradable).
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
17 *
18 * Copyright (c) 2014 (original work) Open Assessment Technologies SA;
19 *
20 *
21 */
22
23/**
24 * Tests Content Controller provide access to the files of an test
25 *
26 * @package taoQtiTest
27 */
28class taoQtiTest_actions_TestContent extends tao_actions_CommonModule
29{
30    /**
31     * Returns a json encoded array describign a directory
32     *
33     * @throws common_exception_MissingParameter
34     * @return string
35     */
36    public function files()
37    {
38        if (!$this->hasRequestParameter('uri')) {
39            throw new common_exception_MissingParameter('uri', __METHOD__);
40        }
41        $testUri = $this->getRequestParameter('uri');
42        $test = new core_kernel_classes_Resource($testUri);
43
44        if (!$this->hasRequestParameter('lang')) {
45            throw new common_exception_MissingParameter('lang', __METHOD__);
46        }
47        $testLang = $this->getRequestParameter('lang');
48
49        $subPath = $this->hasRequestParameter('path') ? $this->getRequestParameter('path') : '/';
50        $depth = $this->hasRequestParameter('depth') ? $this->getRequestParameter('depth') : 1;
51
52        //build filters
53        $filters = [];
54        if ($this->hasRequestParameter('filters')) {
55            $filterParameter = $this->getRequestParameter('filters');
56            if (!empty($filterParameter)) {
57                if (preg_match('/\/\*/', $filterParameter)) {
58                    common_Logger::w(
59                        'Stars mime type are not yet supported, filter "' . $filterParameter . '" will fail'
60                    );
61                }
62                $filters = array_map('trim', explode(',', $filterParameter));
63            }
64        }
65
66        $data = taoQtiTest_helpers_ResourceManager::buildDirectory($test, $testLang, $subPath, $depth, $filters);
67        echo json_encode($data);
68    }
69
70    /**
71     * Upload a file to the item directory
72     *
73     * @throws common_exception_MissingParameter
74     */
75    public function upload()
76    {
77        if (!$this->hasRequestParameter('uri')) {
78            throw new common_exception_MissingParameter('uri', __METHOD__);
79        }
80        $testUri = $this->getRequestParameter('uri');
81        $test = new core_kernel_classes_Resource($testUri);
82
83        if (!$this->hasRequestParameter('lang')) {
84            throw new common_exception_MissingParameter('lang', __METHOD__);
85        }
86        $testLang = $this->getRequestParameter('lang');
87
88        if (!$this->hasRequestParameter('path')) {
89            throw new common_exception_MissingParameter('path', __METHOD__);
90        }
91
92        //TODO path traversal and null byte poison check ?
93        $baseDir = taoQtiTest_helpers_ResourceManager::getBaseDir($test);
94        $relPath = trim($this->getRequestParameter('path'), '/');
95        $relPath = empty($relPath) ? '' : $relPath . '/';
96
97        $file = tao_helpers_Http::getUploadedFile('content');
98        $fileName = $file['name'];
99
100        if (!move_uploaded_file($file["tmp_name"], $baseDir . $relPath . $fileName)) {
101            throw new common_exception_Error('Unable to move uploaded file');
102        }
103
104        $fileData = taoQtiTest_helpers_ResourceManager::buildFile($test, $testLang, $relPath . $fileName);
105        echo json_encode($fileData);
106    }
107
108    /**
109     * Download a file to the item directory*
110     * @throws common_exception_MissingParameter
111     */
112    public function download()
113    {
114        if (!$this->hasRequestParameter('uri')) {
115            throw new common_exception_MissingParameter('uri', __METHOD__);
116        }
117        $testUri = $this->getRequestParameter('uri');
118        $test = new core_kernel_classes_Resource($testUri);
119
120        if (!$this->hasRequestParameter('path')) {
121            throw new common_exception_MissingParameter('path', __METHOD__);
122        }
123
124        $baseDir = taoQtiTest_helpers_ResourceManager::getBaseDir($test);
125        $path = $baseDir . ltrim($this->getRequestParameter('path'), '/');
126
127        tao_helpers_Http::returnFile($path);
128    }
129}