1 | <?php |
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2 | defined('SUBSCRIBE_TO_PATH') or die('Hacking attempt!'); |
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3 | |
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4 | /** |
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5 | * Send comment to subscribers |
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6 | * @param: array comment (author, content, image_id|category_id) |
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7 | */ |
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8 | function send_comment_to_subscribers($comm) |
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9 | { |
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10 | if (empty($comm) or !is_array($comm)) |
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11 | { |
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12 | trigger_error('send_comment_to_subscribers: undefined comm', E_USER_WARNING); |
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13 | return false; |
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14 | } |
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15 | |
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16 | global $conf, $page, $user, $template; |
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17 | |
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18 | // create search clauses |
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19 | $where_clauses = array(); |
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20 | if (isset($comm['image_id'])) |
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21 | { |
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22 | $element_id = $comm['image_id']; |
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23 | $element_type = 'image'; |
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24 | |
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25 | $where_clauses[] = '(type = "image" AND element_id = '.$element_id.')'; |
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26 | $where_clauses[] = 'type = "all-images"'; |
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27 | if (!empty($page['category']['id'])) |
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28 | { |
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29 | $where_clauses[] = '(type = "album-images" AND element_id = '.$page['category']['id'].')'; |
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30 | } |
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31 | } |
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32 | else if (isset($comm['category_id'])) |
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33 | { |
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34 | $element_id = $comm['category_id']; |
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35 | $element_type = 'category'; |
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36 | |
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37 | $where_clauses[] = '(type = "album" AND element_id = '.$element_id.')'; |
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38 | $where_clauses[] = 'type = "all-albums"'; |
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39 | } |
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40 | else |
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41 | { |
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42 | return; |
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43 | } |
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44 | |
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45 | // exclude current user |
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46 | $exclude = null; |
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47 | if (!empty($_POST['stc_mail'])) |
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48 | { |
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49 | $exclude = pwg_db_real_escape_string($_POST['stc_mail']); |
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50 | } |
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51 | else if (!is_a_guest()) |
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52 | { |
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53 | $exclude = $user['email']; |
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54 | } |
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55 | |
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56 | // get subscribers datas |
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57 | $query = ' |
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58 | SELECT |
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59 | id, |
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60 | email, |
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61 | language |
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62 | FROM '.SUBSCRIBE_TO_TABLE.' |
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63 | WHERE ( |
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64 | '.implode("\n OR ", $where_clauses).' |
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65 | ) |
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66 | AND validated = true |
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67 | '.(!empty($exclude) ? 'AND email != "'.$exclude.'"' : '').' |
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68 | GROUP BY email |
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69 | '; |
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70 | $subscriptions = query2array($query); |
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71 | |
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72 | if (count($subscriptions)==0) |
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73 | { |
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74 | return; |
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75 | } |
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76 | |
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77 | set_make_full_url(); |
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78 | |
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79 | // get element infos |
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80 | if ($element_type == 'image') |
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81 | { |
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82 | $element = get_picture_infos($comm['image_id']); |
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83 | } |
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84 | else |
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85 | { |
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86 | $element = get_category_infos($comm['category_id']); |
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87 | } |
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88 | |
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89 | // format comment |
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90 | if ($comm['author'] == 'guest') |
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91 | { |
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92 | $comm['author'] = l10n('guest'); |
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93 | } |
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94 | |
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95 | $comm['author'] = trigger_event('render_comment_author', $comm['author']); |
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96 | $comm['content'] = trigger_event('render_comment_content', $comm['content']); |
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97 | |
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98 | include_once(PHPWG_ROOT_PATH.'include/functions_mail.inc.php'); |
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99 | |
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100 | foreach ($subscriptions as $row) |
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101 | { |
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102 | // get subscriber id |
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103 | if ( ($uid = get_userid_by_email($row['email'])) !== false ) |
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104 | { |
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105 | $row['user_id'] = $uid; |
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106 | } |
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107 | else |
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108 | { |
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109 | $row['user_id'] = $conf['guest_id']; |
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110 | } |
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111 | |
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112 | // check permissions |
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113 | if (!user_can_view_element($row['user_id'], $element_id, $element_type)) |
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114 | { |
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115 | continue; |
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116 | } |
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117 | |
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118 | switch_lang_to($row['language']); |
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119 | |
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120 | $comm['date'] = format_date(date('Y-m-d H:i:s')); |
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121 | |
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122 | pwg_mail( |
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123 | $row['email'], |
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124 | array( |
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125 | 'subject' => '['.strip_tags($conf['gallery_title']).'] '.l10n('New comment on %s', $element['name']), |
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126 | ), |
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127 | array( |
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128 | 'filename' => 'notification', |
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129 | 'dirname' => SUBSCRIBE_TO_PATH . 'template', |
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130 | 'assign' => array( |
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131 | 'ELEMENT' => $element, |
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132 | 'COMMENT' => $comm, |
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133 | 'UNSUB_URL' => make_stc_url('unsubscribe', $row['email'], $row['id']), |
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134 | 'MANAGE_URL' => make_stc_url('manage', $row['email']), |
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135 | ), |
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136 | ) |
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137 | ); |
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138 | |
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139 | switch_lang_back(); |
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140 | } |
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141 | |
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142 | load_language('plugin.lang', SUBSCRIBE_TO_PATH); |
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143 | unset_make_full_url(); |
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144 | } |
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145 | |
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146 | |
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147 | /** |
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148 | * add an email to subscribers list |
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149 | * @param: string email |
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150 | * @param: string type (image|album-images|all-images|album|all-albums) |
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151 | * @param: int element_id |
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152 | * @return: bool |
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153 | */ |
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154 | function subscribe_to_comments($email, $type, $element_id=null, $spam_check=true) |
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155 | { |
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156 | if (empty($type)) |
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157 | { |
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158 | trigger_error('subscribe_to_comment: missing type', E_USER_WARNING); |
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159 | return false; |
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160 | } |
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161 | |
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162 | if (!in_array($type, array('all-images','all-albums')) and !isset($element_id)) |
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163 | { |
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164 | trigger_error('subscribe_to_comment: missing element_id', E_USER_WARNING); |
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165 | return false; |
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166 | } |
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167 | |
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168 | global $page, $conf, $user, $template, $picture; |
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169 | |
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170 | // check email |
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171 | if (!empty($email) and !email_check_format($email)) |
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172 | { |
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173 | $page['errors'][] = l10n('mail address must be like xxx@yyy.eee (example : jack@altern.org)'); |
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174 | return false; |
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175 | } |
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176 | if ( (is_a_guest() or empty($user['email'])) and empty($email) ) |
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177 | { |
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178 | $page['errors'][] = l10n('Invalid email address, your are not subscribed to comments.'); |
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179 | return false; |
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180 | } |
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181 | else if (!is_a_guest() and empty($email)) |
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182 | { |
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183 | $email = $user['email']; |
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184 | } |
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185 | |
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186 | // spam check |
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187 | if ($spam_check) |
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188 | { |
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189 | if (!trigger_event('loc_before_subscribe_to_comments', true, $email, $type, $element_id)) |
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190 | { |
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191 | return false; |
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192 | } |
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193 | } |
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194 | |
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195 | // search if already registered |
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196 | $query = ' |
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197 | SELECT id |
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198 | FROM '.SUBSCRIBE_TO_TABLE.' |
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199 | WHERE |
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200 | type = "'.$type.'" |
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201 | AND element_id = '. (isset($element_id) ? $element_id : 'NULL') .' |
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202 | AND email = "'.pwg_db_real_escape_string($email).'" |
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203 | ;'; |
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204 | $result = pwg_query($query); |
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205 | |
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206 | if (pwg_db_num_rows($result)) |
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207 | { |
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208 | return false; |
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209 | } |
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210 | |
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211 | $query = ' |
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212 | INSERT INTO '.SUBSCRIBE_TO_TABLE.'( |
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213 | type, |
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214 | element_id, |
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215 | language, |
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216 | email, |
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217 | registration_date, |
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218 | validated |
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219 | ) |
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220 | VALUES( |
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221 | "'.$type.'", |
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222 | '. (isset($element_id) ? $element_id : 'NULL') .', |
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223 | "'.$user['language'].'", |
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224 | "'.pwg_db_real_escape_string($email).'", |
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225 | NOW(), |
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226 | "'.(is_a_guest() ? "false" : "true").'" |
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227 | ) |
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228 | ;'; |
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229 | pwg_query($query); |
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230 | |
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231 | $stc_id = pwg_db_insert_id(); |
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232 | |
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233 | include_once(PHPWG_ROOT_PATH.'include/functions_mail.inc.php'); |
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234 | |
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235 | set_make_full_url(); |
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236 | |
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237 | if (!is_a_guest() or $conf['Subscribe_to_Comments']['notify_admin_on_subscribe']) |
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238 | { |
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239 | switch ($type) |
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240 | { |
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241 | case 'image': |
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242 | $element = get_picture_infos($element_id); |
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243 | $element['on'] = l10n('the picture <a href="%s">%s</a>', $element['url'], $element['name']); |
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244 | break; |
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245 | case 'album-images': |
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246 | $element = get_category_infos($element_id); |
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247 | $element['on'] = l10n('all pictures of the album <a href="%s">%s</a>', $element['url'], $element['name']); |
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248 | break; |
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249 | case 'all-images': |
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250 | $element['thumbnail'] = null; |
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251 | $element['on'] = l10n('all pictures of the gallery'); |
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252 | break; |
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253 | case 'album': |
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254 | $element = get_category_infos($element_id); |
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255 | $element['on'] = l10n('the album <a href="%s">%s</a>', $element['url'], $element['name']); |
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256 | break; |
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257 | case 'all-albums': |
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258 | $element['thumbnail'] = null; |
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259 | $element['on'] = l10n('all albums of the gallery'); |
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260 | break; |
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261 | } |
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262 | } |
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263 | |
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264 | // send validation mail |
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265 | if (is_a_guest()) |
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266 | { |
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267 | pwg_mail( |
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268 | $email, |
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269 | array( |
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270 | 'subject' => '['.strip_tags($conf['gallery_title']).'] '.l10n('Confirm your subscription to comments'), |
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271 | ), |
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272 | array( |
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273 | 'filename' => 'confirm', |
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274 | 'dirname' => SUBSCRIBE_TO_PATH . 'template', |
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275 | 'assign' => array( |
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276 | 'ELEMENT' => $element, |
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277 | 'VALIDATE_URL' => make_stc_url('validate', $email, $stc_id), |
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278 | 'MANAGE_URL' => make_stc_url('manage', $email), |
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279 | ), |
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280 | ) |
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281 | ); |
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282 | |
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283 | $page['infos'][] = l10n('Please check your email in-box to confirm your subscription.'); |
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284 | } |
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285 | // just display confirmation message |
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286 | else |
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287 | { |
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288 | $page['infos'][] = l10n('You have been added to the list of subscribers.'); |
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289 | } |
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290 | |
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291 | // notify admins |
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292 | if ($conf['Subscribe_to_Comments']['notify_admin_on_subscribe']) |
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293 | { |
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294 | pwg_mail_notification_admins( |
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295 | get_l10n_args('New subscription on %s', strip_tags($element['on'])), |
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296 | array( |
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297 | get_l10n_args('%s has subscribed to comments on %s.', array($email, $element['on'])), |
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298 | ) |
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299 | ); |
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300 | } |
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301 | |
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302 | unset_make_full_url(); |
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303 | |
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304 | return true; |
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305 | } |
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306 | |
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307 | |
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308 | /** |
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309 | * remove an email from subscribers list |
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310 | * @param: string email |
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311 | * @param: int subscription id |
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312 | * @return: bool |
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313 | */ |
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314 | function un_subscribe_to_comments($email, $ids) |
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315 | { |
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316 | if (!empty($email) and !email_check_format($email)) |
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317 | { |
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318 | trigger_error('un_subscribe_to_comment: bad email', E_USER_WARNING); |
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319 | return false; |
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320 | } |
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321 | if (empty($ids)) |
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322 | { |
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323 | trigger_error('un_subscribe_to_comment: bad id', E_USER_WARNING); |
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324 | return false; |
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325 | } |
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326 | |
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327 | global $user; |
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328 | |
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329 | // check email |
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330 | if ( (is_a_guest() or empty($user['email'])) and empty($email) ) |
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331 | { |
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332 | return false; |
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333 | } |
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334 | else if (!is_a_guest() and empty($email)) |
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335 | { |
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336 | $email = $user['email']; |
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337 | } |
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338 | |
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339 | if (!is_array($ids)) |
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340 | { |
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341 | $ids = array($ids); |
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342 | } |
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343 | $ids = array_map('intval', $ids); |
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344 | |
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345 | // delete subscription |
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346 | $query = ' |
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347 | DELETE FROM '.SUBSCRIBE_TO_TABLE.' |
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348 | WHERE |
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349 | email = "'.pwg_db_real_escape_string($email).'" |
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350 | AND id IN('. implode(',', $ids) .') |
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351 | ;'; |
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352 | pwg_query($query); |
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353 | |
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354 | return (pwg_db_changes() != 0); |
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355 | } |
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356 | |
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357 | |
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358 | /** |
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359 | * validate a subscription |
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360 | * @param: string email |
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361 | * @param: int subscription id |
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362 | * @return: bool |
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363 | */ |
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364 | function validate_subscriptions($email, $ids) |
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365 | { |
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366 | if (!email_check_format($email)) |
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367 | { |
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368 | trigger_error('validate_subscriptions: bad email', E_USER_WARNING); |
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369 | return false; |
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370 | } |
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371 | if (empty($ids)) |
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372 | { |
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373 | trigger_error('validate_subscriptions: bad id', E_USER_WARNING); |
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374 | return false; |
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375 | } |
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376 | |
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377 | if (!is_array($ids)) |
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378 | { |
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379 | $ids = array($ids); |
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380 | } |
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381 | $ids = array_map('intval', $ids); |
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382 | |
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383 | $query = ' |
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384 | UPDATE '.SUBSCRIBE_TO_TABLE.' |
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385 | SET validated = "true" |
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386 | WHERE |
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387 | email = "'.pwg_db_real_escape_string($email).'" |
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388 | AND id IN('. implode(',', $ids) .') |
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389 | ;'; |
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390 | pwg_query($query); |
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391 | |
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392 | return (pwg_db_changes() != 0); |
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393 | } |
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394 | |
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395 | |
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396 | /** |
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397 | * create absolute url to subscriptions section |
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398 | * @param: string action |
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399 | * @param: string email |
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400 | * @param: int optional |
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401 | * @return: string |
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402 | */ |
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403 | function make_stc_url($action, $email, $id=null) |
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404 | { |
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405 | if (empty($action) or empty($email)) |
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406 | { |
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407 | trigger_error('make_stc_url: missing action and/or mail', E_USER_WARNING); |
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408 | return null; |
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409 | } |
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410 | |
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411 | global $conf; |
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412 | set_make_full_url(); |
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413 | |
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414 | $url_params = compact('action', 'email'); |
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415 | if (!empty($id)) |
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416 | { |
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417 | $url_params['id'] = $id; |
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418 | } |
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419 | |
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420 | $url_params['key'] = crypt_value( |
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421 | $action.$email.$id, |
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422 | $conf['secret_key'] |
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423 | ); |
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424 | |
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425 | $url = add_url_params( |
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426 | make_index_url(array('section' => 'subscriptions')), |
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427 | $url_params |
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428 | ); |
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429 | |
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430 | unset_make_full_url(); |
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431 | return $url; |
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432 | } |
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433 | |
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434 | |
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435 | /** |
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436 | * get name, url and thumbnail of a picture |
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437 | * @param: int image_id |
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438 | * @param: bool return thumbnail |
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439 | * @return: array (id, name, url, thumbnail) |
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440 | */ |
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441 | function get_picture_infos($image_id, $with_thumb=true) |
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442 | { |
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443 | if (empty($image_id)) |
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444 | { |
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445 | return array(); |
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446 | } |
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447 | |
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448 | $query = ' |
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449 | SELECT |
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450 | id, |
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451 | file, |
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452 | name, |
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453 | path |
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454 | FROM '.IMAGES_TABLE.' |
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455 | WHERE id = '.$image_id.' |
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456 | ;'; |
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457 | $element = pwg_db_fetch_assoc(pwg_query($query)); |
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458 | |
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459 | if (empty($element['name'])) |
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460 | { |
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461 | $element['name'] = get_name_from_file($element['file']); |
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462 | } |
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463 | $element['name'] = trigger_event('render_element_name', $element['name']); |
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464 | |
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465 | $element['url'] = make_picture_url(array( |
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466 | 'image_id'=>$element['id'] |
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467 | )); |
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468 | |
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469 | if ($with_thumb) |
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470 | { |
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471 | $element['thumbnail'] = DerivativeImage::thumb_url($element); |
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472 | } |
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473 | |
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474 | return $element; |
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475 | } |
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476 | |
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477 | /** |
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478 | * get name, url and thumbnail of a category |
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479 | * @param: int cat_id |
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480 | * @param: int return thumbnail |
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481 | * @return: array (id, name, url, thumbnail) |
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482 | */ |
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483 | function get_category_infos($cat_id, $with_thumb=true, $user_id=null) |
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484 | { |
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485 | global $conf; |
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486 | |
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487 | if ($user_id===null) |
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488 | { |
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489 | $user_id = $conf['guest_id']; |
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490 | } |
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491 | |
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492 | $query = ' |
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493 | SELECT |
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494 | cat.id, |
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495 | cat.name, |
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496 | cat.permalink, |
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497 | ucc.count_images, |
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498 | cat.uppercats, |
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499 | img.id AS image_id, |
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500 | img.path |
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501 | FROM '.CATEGORIES_TABLE.' AS cat |
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502 | LEFT JOIN '.USER_CACHE_CATEGORIES_TABLE.' AS ucc |
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503 | ON ucc.cat_id = cat.id AND ucc.user_id = '.$user_id.' |
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504 | LEFT JOIN '.IMAGES_TABLE.' AS img |
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505 | ON img.id = ucc.user_representative_picture_id |
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506 | WHERE cat.id = '.$cat_id.' |
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507 | ;'; |
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508 | $element = pwg_db_fetch_assoc(pwg_query($query)); |
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509 | |
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510 | $element['url'] = make_index_url(array( |
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511 | 'section'=>'categories', |
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512 | 'category'=>$element, |
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513 | )); |
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514 | |
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515 | $element['name'] = trigger_event('render_category_name', $element['name']); |
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516 | |
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517 | if ($with_thumb) |
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518 | { |
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519 | if (empty($element['image_id']) and $conf['allow_random_representative']) |
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520 | { |
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521 | $image = get_picture_infos(get_random_image_in_category($element)); |
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522 | $element['thumbnail'] = $image['thumbnail']; |
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523 | } |
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524 | else |
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525 | { |
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526 | $element['thumbnail'] = DerivativeImage::thumb_url(array( |
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527 | 'id'=>$element['image_id'], |
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528 | 'path'=>$element['path'], |
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529 | )); |
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530 | } |
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531 | } |
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532 | |
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533 | return $element; |
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534 | } |
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535 | |
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536 | |
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537 | /** |
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538 | * check if the given user can view the category/image |
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539 | * @param: int user_id |
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540 | * @param: int element_id |
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541 | * @param: string type (image|category) |
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542 | * @return: bool |
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543 | */ |
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544 | function user_can_view_element($user_id, $element_id, $type) |
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545 | { |
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546 | global $conf; |
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547 | |
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548 | $old_conf = $conf['external_authentification']; |
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549 | $conf['external_authentification'] = false; |
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550 | $user = getuserdata($user_id, true); |
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551 | $conf['external_authentification'] = $old_conf; |
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552 | |
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553 | if ($type == 'image') |
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554 | { |
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555 | return !in_array($element_id, explode(',', $user['image_access_list'])); |
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556 | } |
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557 | else if ($type == 'category') |
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558 | { |
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559 | return !in_array($element_id, explode(',', $user['forbidden_categories'])); |
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560 | } |
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561 | else |
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562 | { |
---|
563 | return false; |
---|
564 | } |
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565 | } |
---|
566 | |
---|
567 | |
---|
568 | /** |
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569 | * crypt a string using mcrypt extension or |
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570 | * http://stackoverflow.com/questions/800922/how-to-encrypt-string-without-mcrypt-library-in-php/802957#802957 |
---|
571 | * @param: string value to crypt |
---|
572 | * @param: string key |
---|
573 | * @return: string |
---|
574 | */ |
---|
575 | function crypt_value($value, $key) |
---|
576 | { |
---|
577 | if (extension_loaded('mcrypt')) |
---|
578 | { |
---|
579 | $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB); |
---|
580 | $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND); |
---|
581 | $result = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $key, $value, MCRYPT_MODE_ECB, $iv); |
---|
582 | } |
---|
583 | else |
---|
584 | { |
---|
585 | $result = null; |
---|
586 | for($i = 0; $i < strlen($value); $i++) |
---|
587 | { |
---|
588 | $char = substr($value, $i, 1); |
---|
589 | $keychar = substr($key, ($i % strlen($key))-1, 1); |
---|
590 | $char = chr(ord($char) + ord($keychar)); |
---|
591 | $result .= $char; |
---|
592 | } |
---|
593 | } |
---|
594 | |
---|
595 | $result = base64url_encode($result); |
---|
596 | return trim($result); |
---|
597 | } |
---|
598 | |
---|
599 | /** |
---|
600 | * decrypt a string crypted with previous function |
---|
601 | * @param: string value to decrypt |
---|
602 | * @param: string key |
---|
603 | * @return: string |
---|
604 | */ |
---|
605 | function decrypt_value($value, $key) |
---|
606 | { |
---|
607 | $value = base64url_decode($value); |
---|
608 | |
---|
609 | if (extension_loaded('mcrypt')) |
---|
610 | { |
---|
611 | $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_256, MCRYPT_MODE_ECB); |
---|
612 | $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND); |
---|
613 | $result = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $key, $value, MCRYPT_MODE_ECB, $iv); |
---|
614 | } |
---|
615 | else |
---|
616 | { |
---|
617 | $result = null; |
---|
618 | for($i = 0; $i < strlen($value); $i++) |
---|
619 | { |
---|
620 | $char = substr($value, $i, 1); |
---|
621 | $keychar = substr($key, ($i % strlen($key))-1, 1); |
---|
622 | $char = chr(ord($char) - ord($keychar)); |
---|
623 | $result .= $char; |
---|
624 | } |
---|
625 | } |
---|
626 | |
---|
627 | return trim($result); |
---|
628 | } |
---|
629 | |
---|
630 | /** |
---|
631 | * variant of base64 functions usable into url |
---|
632 | * http://php.net/manual/en/function.base64-encode.php#103849 |
---|
633 | */ |
---|
634 | if (!function_exists('base64url_encode')) |
---|
635 | { |
---|
636 | function base64url_encode($data) |
---|
637 | { |
---|
638 | return rtrim(strtr(base64_encode($data), '+/', '-_'), '='); |
---|
639 | } |
---|
640 | function base64url_decode($data) |
---|
641 | { |
---|
642 | return base64_decode(str_pad(strtr($data, '-_', '+/'), strlen($data) % 4, '=', STR_PAD_RIGHT)); |
---|
643 | } |
---|
644 | } |
---|