1 | <?php |
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2 | /* For licensing terms, see /license.txt */ |
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3 | |||
4 | require_once api_get_path(SYS_CODE_PATH).'forum/forumfunction.inc.php'; |
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5 | |||
6 | class Cc13Forum extends Cc13Entities |
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7 | { |
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8 | public function fullPath($path, $dir_sep = DIRECTORY_SEPARATOR) |
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9 | { |
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10 | $token = '$IMS-CC-FILEBASE$'; |
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11 | $path = str_replace($token, '', $path); |
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12 | |||
13 | if (is_string($path) && ($path != '')) { |
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14 | $dot_dir = '.'; |
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15 | $up_dir = '..'; |
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16 | $length = strlen($path); |
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17 | $rtemp = trim($path); |
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18 | $start = strrpos($path, $dir_sep); |
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19 | $can_continue = ($start !== false); |
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20 | $result = $can_continue ? '' : $path; |
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21 | $rcount = 0; |
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22 | |||
23 | while ($can_continue) { |
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24 | $dir_part = ($start !== false) ? substr($rtemp, $start + 1, $length - $start) : $rtemp; |
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25 | $can_continue = ($dir_part !== false); |
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26 | |||
27 | if ($can_continue) { |
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28 | if ($dir_part != $dot_dir) { |
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29 | if ($dir_part == $up_dir) { |
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30 | $rcount++; |
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31 | } else { |
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32 | if ($rcount > 0) { |
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33 | $rcount--; |
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34 | } else { |
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35 | $result = ($result == '') ? $dir_part : $dir_part.$dir_sep.$result; |
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36 | } |
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37 | } |
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38 | } |
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39 | $rtemp = substr($path, 0, $start); |
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40 | $start = strrpos($rtemp, $dir_sep); |
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41 | $can_continue = (($start !== false) || (strlen($rtemp) > 0)); |
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42 | } |
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43 | } |
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44 | } |
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45 | |||
46 | return $result; |
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47 | } |
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48 | |||
49 | public function generateData() |
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50 | { |
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51 | $data = []; |
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52 | if (!empty(Cc1p3Convert::$instances['instances']['forum'])) { |
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53 | foreach (Cc1p3Convert::$instances['instances']['forum'] as $instance) { |
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54 | $data[] = $this->getForumData($instance); |
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55 | } |
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56 | } |
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57 | |||
58 | return $data; |
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59 | } |
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60 | |||
61 | public function getForumData($instance) |
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62 | { |
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63 | $topic_data = $this->getTopicData($instance); |
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64 | |||
65 | $values = []; |
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66 | if (!empty($topic_data)) { |
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67 | $values = [ |
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68 | 'instance' => $instance['instance'], |
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69 | 'title' => self::safexml($topic_data['title']), |
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70 | 'description' => self::safexml($topic_data['description']), |
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71 | ]; |
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72 | } |
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73 | |||
74 | return $values; |
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75 | } |
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76 | |||
77 | public function storeForums($forums) |
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78 | { |
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79 | // Create a Forum category for the import CC 1.3. |
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80 | $courseInfo = api_get_course_info(); |
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81 | $catForumValues['forum_category_title'] = 'CC1p3'; |
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82 | $catForumValues['forum_category_comment'] = ''; |
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83 | $catId = store_forumcategory( |
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84 | $catForumValues, |
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85 | $courseInfo, |
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86 | false |
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87 | ); |
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88 | |||
89 | foreach ($forums as $forum) { |
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90 | $forumValues = []; |
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91 | $forumValues['forum_title'] = $forum['title']; |
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92 | $forumValues['forum_image'] = ''; |
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93 | $forumValues['forum_comment'] = strip_tags($forum['description']); |
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94 | $forumValues['forum_category'] = $catId; |
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95 | $forumValues['moderated'] = 0; |
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96 | store_forum($forumValues, $courseInfo); |
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97 | } |
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98 | |||
99 | return true; |
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100 | } |
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101 | |||
102 | public function getTopicData($instance) |
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103 | { |
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104 | $topic_data = []; |
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105 | |||
106 | $topic_file = $this->getExternalXml($instance['resource_indentifier']); |
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107 | |||
108 | if (!empty($topic_file)) { |
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109 | $topic_file_path = Cc1p3Convert::$pathToManifestFolder.DIRECTORY_SEPARATOR.$topic_file; |
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110 | $topic_file_dir = dirname($topic_file_path); |
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111 | $topic = $this->loadXmlResource($topic_file_path); |
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112 | |||
113 | if (!empty($topic)) { |
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114 | $xpath = Cc1p3Convert::newxPath($topic, Cc1p3Convert::$forumns); |
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115 | |||
116 | $topic_title = $xpath->query('/dt:topic/dt:title'); |
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117 | if ($topic_title->length > 0 && !empty($topic_title->item(0)->nodeValue)) { |
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118 | $topic_title = $topic_title->item(0)->nodeValue; |
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119 | } else { |
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120 | $topic_title = 'Untitled Topic'; |
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121 | } |
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122 | |||
123 | $topic_text = $xpath->query('/dt:topic/dt:text'); |
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124 | $topic_text = !empty($topic_text->item(0)->nodeValue) ? $this->updateSources($topic_text->item(0)->nodeValue, dirname($topic_file)) : ''; |
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125 | $topic_text = !empty($topic_text) ? str_replace("%24", "\$", $this->includeTitles($topic_text)) : ''; |
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126 | |||
127 | if (!empty($topic_title)) { |
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128 | $topic_data['title'] = $topic_title; |
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129 | $topic_data['description'] = $topic_text; |
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130 | } |
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131 | } |
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132 | |||
133 | $topic_attachments = $xpath->query('/dt:topic/dt:attachments/dt:attachment/@href'); |
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134 | |||
135 | if ($topic_attachments->length > 0) { |
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136 | $attachment_html = ''; |
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137 | |||
138 | foreach ($topic_attachments as $file) { |
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139 | $attachment_html .= $this->generateAttachmentHtml($this->fullPath($file->nodeValue, '/')); |
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140 | } |
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141 | |||
142 | $topic_data['description'] = !empty($attachment_html) ? $topic_text.'<p>Attachments:</p>'.$attachment_html : $topic_text; |
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143 | } |
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144 | } |
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145 | |||
146 | return $topic_data; |
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147 | } |
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148 | |||
149 | private function generateAttachmentHtml($filename) |
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150 | { |
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151 | $images_extensions = ['gif', 'jpeg', 'jpg', 'jif', 'jfif', 'png', 'bmp']; |
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152 | |||
153 | $fileinfo = pathinfo($filename); |
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154 | |||
155 | if (in_array($fileinfo['extension'], $images_extensions)) { |
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156 | return '<img src="$@FILEPHP@$/'.$filename.'" title="'.$fileinfo['basename'].'" alt="'.$fileinfo['basename'].'" /><br />'; |
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157 | } else { |
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158 | return '<a href="$@FILEPHP@$/'.$filename.'" title="'.$fileinfo['basename'].'" alt="'.$fileinfo['basename'].'">'.$fileinfo['basename'].'</a><br />'; |
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159 | } |
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160 | |||
161 | return ''; |
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162 | } |
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163 | } |
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164 |
This check looks for unreachable code. It uses sophisticated control flow analysis techniques to find statements which will never be executed.
Unreachable code is most often the result of
return
,die
orexit
statements that have been added for debug purposes.In the above example, the last
return false
will never be executed, because a return statement has already been met in every possible execution path.