1 | <?php |
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2 | // +-----------------------------------------------------------------------+ |
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3 | // | Piwigo - a PHP based picture gallery | |
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4 | // +-----------------------------------------------------------------------+ |
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5 | // | Copyright(C) 2008-2010 Piwigo Team http://piwigo.org | |
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6 | // | Copyright(C) 2003-2008 PhpWebGallery Team http://phpwebgallery.net | |
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7 | // | Copyright(C) 2002-2003 Pierrick LE GALL http://le-gall.net/pierrick | |
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8 | // +-----------------------------------------------------------------------+ |
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9 | // | This program is free software; you can redistribute it and/or modify | |
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10 | // | it under the terms of the GNU General Public License as published by | |
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11 | // | the Free Software Foundation | |
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12 | // | | |
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13 | // | This program is distributed in the hope that it will be useful, but | |
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14 | // | WITHOUT ANY WARRANTY; without even the implied warranty of | |
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15 | // | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
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16 | // | General Public License for more details. | |
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17 | // | | |
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18 | // | You should have received a copy of the GNU General Public License | |
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19 | // | along with this program; if not, write to the Free Software | |
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20 | // | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, | |
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21 | // | USA. | |
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22 | // +-----------------------------------------------------------------------+ |
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23 | |
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24 | define('REQUIRED_SQLITE_VERSION', '3.0.0'); |
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25 | define('DB_ENGINE', 'SQLite'); |
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26 | |
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27 | define('DB_REGEX_OPERATOR', 'REGEXP'); |
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28 | define('DB_RANDOM_FUNCTION', 'RANDOM'); |
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29 | |
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30 | /** |
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31 | * |
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32 | * simple functions |
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33 | * |
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34 | */ |
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35 | |
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36 | function pwg_db_connect($host, $user, $password, $database) |
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37 | { |
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38 | global $conf; |
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39 | |
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40 | $db_file = sprintf('%s/%s.db', $conf['local_data_dir'], $database); |
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41 | |
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42 | if (script_basename()=='install') |
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43 | { |
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44 | $sqlite_open_mode = SQLITE3_OPEN_READWRITE | SQLITE3_OPEN_CREATE; |
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45 | } |
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46 | else |
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47 | { |
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48 | $sqlite_open_mode = SQLITE3_OPEN_READWRITE; |
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49 | } |
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50 | |
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51 | $link = new SQLite3($db_file, $sqlite_open_mode); |
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52 | if (!$link) |
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53 | { |
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54 | throw new Exception('Connection to server succeed, but it was impossible to connect to database'); |
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55 | } |
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56 | |
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57 | $link->createFunction('now', 'pwg_now', 0); |
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58 | $link->createFunction('hour', 'pwg_hour', 1); |
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59 | $link->createFunction('unix_timestamp', 'pwg_unix_timestamp', 0); |
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60 | $link->createFunction('md5', 'md5', 1); |
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61 | $link->createFunction('if', 'pwg_if', 3); |
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62 | |
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63 | $link->createFunction('regexp', 'pwg_regexp', 2); |
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64 | |
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65 | return $link; |
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66 | } |
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67 | |
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68 | function pwg_db_check_version() |
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69 | { |
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70 | $current_version = pwg_get_db_version(); |
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71 | if (version_compare($current_version, REQUIRED_SQLITE_VERSION, '<')) |
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72 | { |
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73 | fatal_error( |
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74 | sprintf( |
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75 | 'your database version is too old, you have "%s" and you need at least "%s"', |
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76 | $current_version, |
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77 | REQUIRED_SQLITE_VERSION |
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78 | ) |
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79 | ); |
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80 | } |
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81 | } |
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82 | |
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83 | function pwg_db_check_charset() |
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84 | { |
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85 | return true; |
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86 | } |
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87 | |
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88 | function pwg_get_db_version() |
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89 | { |
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90 | global $pwg_db_link; |
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91 | |
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92 | $versionInfos = $pwg_db_link->version(); |
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93 | return $versionInfos['versionString']; |
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94 | } |
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95 | |
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96 | function pwg_query($query) |
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97 | { |
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98 | global $conf,$page,$debug,$t2,$pwg_db_link; |
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99 | |
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100 | $start = get_moment(); |
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101 | |
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102 | $truncate_pattern = '`truncate(.*)`i'; |
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103 | $insert_pattern = '`(INSERT INTO [^)]*\)\s*VALUES)(\([^)]*\))\s*,\s*(.*)`mi'; |
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104 | |
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105 | if (preg_match($truncate_pattern, $query, $matches)) |
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106 | { |
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107 | $query = str_replace('TRUNCATE TABLE', 'DELETE FROM', $query); |
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108 | $truncate_query = true; |
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109 | ($result = $pwg_db_link->exec($query)) or die($query."\n<br>".$pwg_db_link->lastErrorMsg()); |
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110 | } |
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111 | elseif (preg_match($insert_pattern, $query, $matches)) |
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112 | { |
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113 | $base_query = substr($query, 0, strlen($matches[1])+1); |
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114 | $values_pattern = '`\)\s*,\s*\(`'; |
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115 | $values = preg_split($values_pattern, substr($query, strlen($matches[1])+1)); |
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116 | $values[0] = substr($values[0], 1); |
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117 | $values[count($values)-1] = substr($values[count($values)-1], |
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118 | 0, |
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119 | strlen($values[count($values)-1])-1 |
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120 | ); |
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121 | for ($n=0;$n<count($values);$n++) |
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122 | { |
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123 | $query = $base_query . '('. $values[$n] . ")\n;"; |
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124 | ($result = $pwg_db_link->query($query)) |
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125 | or die($query."\n<br>".$pwg_db_link->lastErrorMsg()); |
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126 | } |
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127 | } |
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128 | else |
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129 | { |
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130 | ($result = $pwg_db_link->query($query)) |
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131 | or die($query."\n<br>".$pwg_db_link->lastErrorMsg()); |
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132 | } |
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133 | |
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134 | $time = get_moment() - $start; |
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135 | |
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136 | if (!isset($page['count_queries'])) |
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137 | { |
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138 | $page['count_queries'] = 0; |
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139 | $page['queries_time'] = 0; |
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140 | } |
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141 | |
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142 | $page['count_queries']++; |
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143 | $page['queries_time']+= $time; |
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144 | |
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145 | if ($conf['show_queries']) |
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146 | { |
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147 | $output = ''; |
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148 | $output.= '<pre>['.$page['count_queries'].'] '; |
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149 | $output.= "\n".$query; |
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150 | $output.= "\n".'(this query time : '; |
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151 | $output.= '<b>'.number_format($time, 3, '.', ' ').' s)</b>'; |
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152 | $output.= "\n".'(total SQL time : '; |
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153 | $output.= number_format($page['queries_time'], 3, '.', ' ').' s)'; |
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154 | $output.= "\n".'(total time : '; |
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155 | $output.= number_format( ($time+$start-$t2), 3, '.', ' ').' s)'; |
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156 | if ( $result!=null and preg_match('/\s*SELECT\s+/i',$query) ) |
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157 | { |
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158 | $output.= "\n".'(num rows : '; |
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159 | $output.= pwg_db_num_rows($result).' )'; |
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160 | } |
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161 | elseif ( $result!=null |
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162 | and preg_match('/\s*INSERT|UPDATE|REPLACE|DELETE\s+/i',$query) |
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163 | and !isset($truncate_query)) |
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164 | { |
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165 | $output.= "\n".'(affected rows : '; |
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166 | $output.= pwg_db_changes($result).' )'; |
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167 | } |
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168 | $output.= "</pre>\n"; |
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169 | |
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170 | $debug .= $output; |
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171 | } |
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172 | |
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173 | return $result; |
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174 | } |
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175 | |
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176 | function pwg_db_nextval($column, $table) |
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177 | { |
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178 | $query = ' |
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179 | SELECT MAX('.$column.')+1 |
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180 | FROM '.$table; |
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181 | list($next) = pwg_db_fetch_row(pwg_query($query)); |
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182 | if (is_null($next)) |
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183 | { |
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184 | $next = 1; |
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185 | } |
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186 | return $next; |
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187 | } |
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188 | |
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189 | /** |
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190 | * |
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191 | * complex functions |
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192 | * |
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193 | */ |
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194 | |
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195 | function pwg_db_changes(SQLite3Result $result=null) |
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196 | { |
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197 | global $pwg_db_link; |
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198 | |
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199 | return $pwg_db_link->changes(); |
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200 | } |
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201 | |
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202 | function pwg_db_num_rows($result) |
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203 | { |
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204 | return $result->numColumns(); |
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205 | } |
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206 | |
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207 | function pwg_db_fetch_assoc($result) |
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208 | { |
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209 | return $result->fetchArray(SQLITE3_ASSOC); |
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210 | } |
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211 | |
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212 | function pwg_db_fetch_row($result) |
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213 | { |
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214 | return $result->fetchArray(SQLITE3_NUM); |
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215 | } |
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216 | |
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217 | function pwg_db_fetch_object($result) |
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218 | { |
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219 | return $result; |
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220 | } |
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221 | |
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222 | function pwg_db_free_result($result) |
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223 | { |
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224 | } |
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225 | |
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226 | function pwg_db_real_escape_string($s) |
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227 | { |
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228 | global $pwg_db_link; |
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229 | |
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230 | return $pwg_db_link->escapeString($s); |
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231 | } |
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232 | |
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233 | function pwg_db_insert_id($table=null, $column='id') |
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234 | { |
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235 | global $pwg_db_link; |
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236 | |
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237 | return $pwg_db_link->lastInsertRowID(); |
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238 | } |
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239 | |
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240 | /** |
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241 | * |
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242 | * complex functions |
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243 | * |
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244 | */ |
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245 | |
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246 | /** |
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247 | * creates an array based on a query, this function is a very common pattern |
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248 | * used here |
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249 | * |
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250 | * @param string $query |
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251 | * @param string $fieldname |
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252 | * @return array |
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253 | */ |
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254 | function array_from_query($query, $fieldname) |
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255 | { |
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256 | $array = array(); |
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257 | |
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258 | $result = pwg_query($query); |
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259 | while ($row = pwg_db_fetch_assoc($result)) |
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260 | { |
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261 | array_push($array, $row[$fieldname]); |
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262 | } |
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263 | |
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264 | return $array; |
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265 | } |
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266 | |
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267 | define('MASS_UPDATES_SKIP_EMPTY', 1); |
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268 | /** |
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269 | * updates multiple lines in a table |
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270 | * |
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271 | * @param string table_name |
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272 | * @param array dbfields |
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273 | * @param array datas |
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274 | * @param int flags - if MASS_UPDATES_SKIP_EMPTY - empty values do not overwrite existing ones |
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275 | * @return void |
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276 | */ |
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277 | function mass_updates($tablename, $dbfields, $datas, $flags=0) |
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278 | { |
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279 | if (count($datas) == 0) |
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280 | return; |
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281 | |
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282 | foreach ($datas as $data) |
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283 | { |
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284 | $query = ' |
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285 | UPDATE '.$tablename.' |
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286 | SET '; |
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287 | $is_first = true; |
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288 | foreach ($dbfields['update'] as $key) |
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289 | { |
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290 | $separator = $is_first ? '' : ",\n "; |
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291 | |
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292 | if (isset($data[$key]) and $data[$key] != '') |
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293 | { |
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294 | $query.= $separator.$key.' = \''.$data[$key].'\''; |
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295 | } |
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296 | else |
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297 | { |
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298 | if ($flags & MASS_UPDATES_SKIP_EMPTY ) |
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299 | continue; // next field |
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300 | $query.= "$separator$key = NULL"; |
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301 | } |
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302 | $is_first = false; |
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303 | } |
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304 | if (!$is_first) |
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305 | {// only if one field at least updated |
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306 | $query.= ' |
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307 | WHERE '; |
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308 | $is_first = true; |
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309 | foreach ($dbfields['primary'] as $key) |
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310 | { |
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311 | if (!$is_first) |
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312 | { |
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313 | $query.= ' AND '; |
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314 | } |
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315 | if ( isset($data[$key]) ) |
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316 | { |
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317 | $query.= $key.' = \''.$data[$key].'\''; |
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318 | } |
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319 | else |
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320 | { |
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321 | $query.= $key.' IS NULL'; |
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322 | } |
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323 | $is_first = false; |
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324 | } |
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325 | pwg_query($query); |
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326 | } |
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327 | } |
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328 | } |
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329 | |
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330 | |
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331 | /** |
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332 | * inserts multiple lines in a table |
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333 | * |
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334 | * @param string table_name |
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335 | * @param array dbfields |
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336 | * @param array inserts |
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337 | * @return void |
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338 | */ |
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339 | |
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340 | function mass_inserts($table_name, $dbfields, $datas) |
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341 | { |
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342 | if (count($datas) != 0) |
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343 | { |
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344 | $first = true; |
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345 | |
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346 | $packet_size = 16777216; |
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347 | $packet_size = $packet_size - 2000; // The last list of values MUST not exceed 2000 character*/ |
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348 | $query = ''; |
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349 | |
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350 | foreach ($datas as $insert) |
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351 | { |
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352 | if (strlen($query) >= $packet_size) |
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353 | { |
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354 | pwg_query($query); |
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355 | $first = true; |
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356 | } |
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357 | |
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358 | if ($first) |
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359 | { |
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360 | $query = ' |
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361 | INSERT INTO '.$table_name.' |
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362 | ('.implode(',', $dbfields).') |
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363 | VALUES'; |
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364 | $first = false; |
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365 | } |
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366 | else |
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367 | { |
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368 | $query .= ' |
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369 | , '; |
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370 | } |
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371 | |
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372 | $query .= '('; |
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373 | foreach ($dbfields as $field_id => $dbfield) |
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374 | { |
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375 | if ($field_id > 0) |
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376 | { |
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377 | $query .= ','; |
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378 | } |
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379 | |
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380 | if (!isset($insert[$dbfield]) or $insert[$dbfield] === '') |
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381 | { |
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382 | $query .= 'NULL'; |
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383 | } |
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384 | else |
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385 | { |
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386 | $query .= "'".$insert[$dbfield]."'"; |
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387 | } |
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388 | } |
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389 | $query .= ')'; |
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390 | } |
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391 | pwg_query($query); |
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392 | } |
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393 | } |
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394 | |
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395 | /** |
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396 | * Do maintenance on all PWG tables |
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397 | * |
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398 | * @return none |
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399 | */ |
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400 | function do_maintenance_all_tables() |
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401 | { |
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402 | global $prefixeTable, $page; |
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403 | |
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404 | $all_tables = array(); |
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405 | |
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406 | // List all tables |
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407 | $query = 'SELECT name FROM SQLITE_MASTER |
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408 | WHERE name LIKE \''.$prefixeTable.'%\''; |
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409 | |
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410 | $all_tables = array_from_query($query, 'name'); |
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411 | foreach ($all_tables as $table_name) |
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412 | { |
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413 | $query = 'VACUUM '.$table_name.';'; |
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414 | $result = pwg_query($query); |
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415 | } |
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416 | |
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417 | array_push($page['infos'], |
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418 | l10n('All optimizations have been successfully completed.') |
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419 | ); |
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420 | } |
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421 | |
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422 | function pwg_db_concat($array) |
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423 | { |
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424 | return implode($array, ' || '); |
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425 | } |
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426 | |
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427 | function pwg_db_concat_ws($array, $separator) |
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428 | { |
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429 | $glue = sprintf(' || \'%s\' || ', $separator); |
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430 | |
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431 | return implode($array, $glue); |
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432 | } |
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433 | |
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434 | function pwg_db_cast_to_text($string) |
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435 | { |
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436 | return $string; |
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437 | } |
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438 | |
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439 | /** |
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440 | * returns an array containing the possible values of an enum field |
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441 | * |
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442 | * @param string tablename |
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443 | * @param string fieldname |
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444 | */ |
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445 | function get_enums($table, $field) |
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446 | { |
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447 | $Enums['categories']['status'] = array('public', 'private'); |
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448 | $Enums['history']['section'] = array('categories','tags','search','list','favorites','most_visited','best_rated','recent_pics','recent_cats'); |
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449 | $Enums['user_infos']['status'] = array('webmaster','admin','normal','generic','guest'); |
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450 | $Enums['image']['type'] = array('picture','high','other'); |
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451 | $Enums['plugins']['state'] = array('active', 'inactive'); |
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452 | $Enums['user_cache_image']['access_type'] = array('NOT IN','IN'); |
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453 | |
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454 | $table = str_replace($GLOBALS['prefixeTable'], '', $table); |
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455 | if (isset($Enums[$table][$field])) { |
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456 | return $Enums[$table][$field]; |
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457 | } else { |
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458 | return array(); |
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459 | } |
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460 | } |
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461 | |
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462 | // get_boolean transforms a string to a boolean value. If the string is |
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463 | // "false" (case insensitive), then the boolean value false is returned. In |
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464 | // any other case, true is returned. |
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465 | function get_boolean( $string ) |
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466 | { |
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467 | $boolean = true; |
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468 | if ('f' === $string || 'false' === $string) |
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469 | { |
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470 | $boolean = false; |
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471 | } |
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472 | return $boolean; |
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473 | } |
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474 | |
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475 | /** |
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476 | * returns boolean string 'true' or 'false' if the given var is boolean |
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477 | * |
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478 | * @param mixed $var |
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479 | * @return mixed |
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480 | */ |
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481 | function boolean_to_string($var) |
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482 | { |
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483 | if (is_bool($var)) |
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484 | { |
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485 | return $var ? 'true' : 'false'; |
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486 | } |
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487 | else |
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488 | { |
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489 | return $var; |
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490 | } |
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491 | } |
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492 | |
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493 | /** |
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494 | * |
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495 | * interval and date functions |
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496 | * |
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497 | */ |
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498 | |
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499 | function pwg_db_get_recent_period_expression($period, $date='CURRENT_DATE') |
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500 | { |
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501 | if ($date!='CURRENT_DATE') |
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502 | { |
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503 | $date = '\''.$date.'\''; |
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504 | } |
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505 | |
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506 | return 'date('.$date.',\''.-$period.' DAY\')'; |
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507 | } |
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508 | |
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509 | function pwg_db_get_recent_period($period, $date='CURRENT_DATE') |
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510 | { |
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511 | $query = 'select '.pwg_db_get_recent_period_expression($period, $date); |
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512 | list($d) = pwg_db_fetch_row(pwg_query($query)); |
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513 | |
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514 | return $d; |
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515 | } |
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516 | |
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517 | function pwg_db_get_date_YYYYMM($date) |
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518 | { |
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519 | return 'strftime(\'%Y%m\','.$date.')'; |
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520 | } |
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521 | |
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522 | function pwg_db_get_date_MMDD($date) |
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523 | { |
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524 | return 'strftime(\'%m%d\','.$date.')'; |
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525 | } |
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526 | |
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527 | function pwg_db_get_year($date) |
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528 | { |
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529 | return 'strftime(\'%Y\','.$date.')'; |
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530 | } |
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531 | |
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532 | function pwg_db_get_month($date) |
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533 | { |
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534 | return 'strftime(\'%m\','.$date.')'; |
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535 | } |
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536 | |
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537 | function pwg_db_get_week($date, $mode=null) |
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538 | { |
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539 | return 'strftime(\'%W\','.$date.')'; |
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540 | } |
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541 | |
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542 | function pwg_db_get_dayofmonth($date) |
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543 | { |
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544 | return 'strftime(\'%d\','.$date.')'; |
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545 | } |
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546 | |
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547 | function pwg_db_get_dayofweek($date) |
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548 | { |
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549 | return 'strftime(\'%w\','.$date.')'; |
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550 | } |
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551 | |
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552 | function pwg_db_get_weekday($date) |
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553 | { |
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554 | return 'strftime(\'%w\',date('.$date.',\'-1 DAY\'))'; |
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555 | } |
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556 | |
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557 | // my_error returns (or send to standard output) the message concerning the |
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558 | // error occured for the last mysql query. |
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559 | function my_error($header, $die) |
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560 | { |
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561 | global $pwg_db_link; |
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562 | |
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563 | $error = ''; |
---|
564 | if (isset($pwg_db_link)) |
---|
565 | { |
---|
566 | $error .= '[sqlite error]'.$pwg_db_link->lastErrorMsg()."\n"; |
---|
567 | } |
---|
568 | |
---|
569 | $error .= $header; |
---|
570 | |
---|
571 | if ($die) |
---|
572 | { |
---|
573 | fatal_error($error); |
---|
574 | } |
---|
575 | echo("<pre>"); |
---|
576 | trigger_error($error, E_USER_WARNING); |
---|
577 | echo("</pre>"); |
---|
578 | } |
---|
579 | |
---|
580 | // sqlite create functions |
---|
581 | function pwg_now() |
---|
582 | { |
---|
583 | return date('Y-m-d H:i:s'); |
---|
584 | } |
---|
585 | |
---|
586 | function pwg_hour($datetime) |
---|
587 | { |
---|
588 | return strftime('%H', $datetime); |
---|
589 | } |
---|
590 | |
---|
591 | function pwg_unix_timestamp() |
---|
592 | { |
---|
593 | return time(); |
---|
594 | } |
---|
595 | |
---|
596 | function pwg_if($expression, $value1, $value2) |
---|
597 | { |
---|
598 | if ($expression) |
---|
599 | { |
---|
600 | return $value1; |
---|
601 | } |
---|
602 | else |
---|
603 | { |
---|
604 | return $value2; |
---|
605 | } |
---|
606 | } |
---|
607 | |
---|
608 | function pwg_regexp($pattern, $string) |
---|
609 | { |
---|
610 | $pattern = sprintf('`%s`', $pattern); |
---|
611 | return preg_match($pattern, $string); |
---|
612 | } |
---|
613 | ?> |
---|