1 | <?php |
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2 | ///////////////////////////////////////////////////////////////// |
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3 | /// getID3() by James Heinrich <info@getid3.org> // |
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4 | // available at http://getid3.sourceforge.net // |
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5 | // or http://www.getid3.org // |
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6 | ///////////////////////////////////////////////////////////////// |
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7 | // // |
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8 | // getid3.lib.php - part of getID3() // |
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9 | // See readme.txt for more details // |
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10 | // /// |
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11 | ///////////////////////////////////////////////////////////////// |
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12 | |
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13 | |
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14 | class getid3_lib |
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15 | { |
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16 | |
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17 | function PrintHexBytes($string, $hex=true, $spaces=true, $htmlsafe=true) { |
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18 | $returnstring = ''; |
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19 | for ($i = 0; $i < strlen($string); $i++) { |
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20 | if ($hex) { |
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21 | $returnstring .= str_pad(dechex(ord($string{$i})), 2, '0', STR_PAD_LEFT); |
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22 | } else { |
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23 | $returnstring .= ' '.(ereg("[\x20-\x7E]", $string{$i}) ? $string{$i} : '¤'); |
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24 | } |
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25 | if ($spaces) { |
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26 | $returnstring .= ' '; |
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27 | } |
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28 | } |
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29 | if ($htmlsafe) { |
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30 | $returnstring = htmlentities($returnstring); |
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31 | } |
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32 | return $returnstring; |
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33 | } |
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34 | |
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35 | function SafeStripSlashes($text) { |
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36 | if (get_magic_quotes_gpc()) { |
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37 | return stripslashes($text); |
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38 | } |
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39 | return $text; |
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40 | } |
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41 | |
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42 | |
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43 | function trunc($floatnumber) { |
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44 | // truncates a floating-point number at the decimal point |
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45 | // returns int (if possible, otherwise float) |
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46 | if ($floatnumber >= 1) { |
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47 | $truncatednumber = floor($floatnumber); |
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48 | } elseif ($floatnumber <= -1) { |
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49 | $truncatednumber = ceil($floatnumber); |
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50 | } else { |
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51 | $truncatednumber = 0; |
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52 | } |
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53 | if ($truncatednumber <= 1073741824) { // 2^30 |
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54 | $truncatednumber = (int) $truncatednumber; |
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55 | } |
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56 | return $truncatednumber; |
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57 | } |
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58 | |
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59 | |
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60 | function CastAsInt($floatnum) { |
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61 | // convert to float if not already |
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62 | $floatnum = (float) $floatnum; |
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63 | |
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64 | // convert a float to type int, only if possible |
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65 | if (getid3_lib::trunc($floatnum) == $floatnum) { |
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66 | // it's not floating point |
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67 | if ($floatnum <= 2147483647) { // 2^31 |
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68 | // it's within int range |
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69 | $floatnum = (int) $floatnum; |
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70 | } |
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71 | } |
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72 | return $floatnum; |
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73 | } |
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74 | |
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75 | |
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76 | function DecimalBinary2Float($binarynumerator) { |
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77 | $numerator = getid3_lib::Bin2Dec($binarynumerator); |
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78 | $denominator = getid3_lib::Bin2Dec('1'.str_repeat('0', strlen($binarynumerator))); |
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79 | return ($numerator / $denominator); |
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80 | } |
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81 | |
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82 | |
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83 | function NormalizeBinaryPoint($binarypointnumber, $maxbits=52) { |
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84 | // http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/binary.html |
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85 | if (strpos($binarypointnumber, '.') === false) { |
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86 | $binarypointnumber = '0.'.$binarypointnumber; |
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87 | } elseif ($binarypointnumber{0} == '.') { |
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88 | $binarypointnumber = '0'.$binarypointnumber; |
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89 | } |
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90 | $exponent = 0; |
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91 | while (($binarypointnumber{0} != '1') || (substr($binarypointnumber, 1, 1) != '.')) { |
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92 | if (substr($binarypointnumber, 1, 1) == '.') { |
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93 | $exponent--; |
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94 | $binarypointnumber = substr($binarypointnumber, 2, 1).'.'.substr($binarypointnumber, 3); |
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95 | } else { |
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96 | $pointpos = strpos($binarypointnumber, '.'); |
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97 | $exponent += ($pointpos - 1); |
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98 | $binarypointnumber = str_replace('.', '', $binarypointnumber); |
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99 | $binarypointnumber = $binarypointnumber{0}.'.'.substr($binarypointnumber, 1); |
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100 | } |
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101 | } |
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102 | $binarypointnumber = str_pad(substr($binarypointnumber, 0, $maxbits + 2), $maxbits + 2, '0', STR_PAD_RIGHT); |
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103 | return array('normalized'=>$binarypointnumber, 'exponent'=>(int) $exponent); |
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104 | } |
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105 | |
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106 | |
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107 | function Float2BinaryDecimal($floatvalue) { |
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108 | // http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/binary.html |
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109 | $maxbits = 128; // to how many bits of precision should the calculations be taken? |
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110 | $intpart = getid3_lib::trunc($floatvalue); |
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111 | $floatpart = abs($floatvalue - $intpart); |
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112 | $pointbitstring = ''; |
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113 | while (($floatpart != 0) && (strlen($pointbitstring) < $maxbits)) { |
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114 | $floatpart *= 2; |
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115 | $pointbitstring .= (string) getid3_lib::trunc($floatpart); |
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116 | $floatpart -= getid3_lib::trunc($floatpart); |
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117 | } |
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118 | $binarypointnumber = decbin($intpart).'.'.$pointbitstring; |
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119 | return $binarypointnumber; |
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120 | } |
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121 | |
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122 | |
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123 | function Float2String($floatvalue, $bits) { |
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124 | // http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/ieee-expl.html |
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125 | switch ($bits) { |
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126 | case 32: |
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127 | $exponentbits = 8; |
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128 | $fractionbits = 23; |
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129 | break; |
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130 | |
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131 | case 64: |
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132 | $exponentbits = 11; |
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133 | $fractionbits = 52; |
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134 | break; |
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135 | |
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136 | default: |
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137 | return false; |
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138 | break; |
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139 | } |
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140 | if ($floatvalue >= 0) { |
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141 | $signbit = '0'; |
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142 | } else { |
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143 | $signbit = '1'; |
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144 | } |
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145 | $normalizedbinary = getid3_lib::NormalizeBinaryPoint(getid3_lib::Float2BinaryDecimal($floatvalue), $fractionbits); |
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146 | $biasedexponent = pow(2, $exponentbits - 1) - 1 + $normalizedbinary['exponent']; // (127 or 1023) +/- exponent |
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147 | $exponentbitstring = str_pad(decbin($biasedexponent), $exponentbits, '0', STR_PAD_LEFT); |
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148 | $fractionbitstring = str_pad(substr($normalizedbinary['normalized'], 2), $fractionbits, '0', STR_PAD_RIGHT); |
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149 | |
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150 | return getid3_lib::BigEndian2String(getid3_lib::Bin2Dec($signbit.$exponentbitstring.$fractionbitstring), $bits % 8, false); |
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151 | } |
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152 | |
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153 | |
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154 | function LittleEndian2Float($byteword) { |
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155 | return getid3_lib::BigEndian2Float(strrev($byteword)); |
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156 | } |
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157 | |
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158 | |
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159 | function BigEndian2Float($byteword) { |
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160 | // ANSI/IEEE Standard 754-1985, Standard for Binary Floating Point Arithmetic |
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161 | // http://www.psc.edu/general/software/packages/ieee/ieee.html |
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162 | // http://www.scri.fsu.edu/~jac/MAD3401/Backgrnd/ieee.html |
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163 | |
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164 | $bitword = getid3_lib::BigEndian2Bin($byteword); |
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165 | if (!$bitword) { |
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166 | return 0; |
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167 | } |
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168 | $signbit = $bitword{0}; |
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169 | |
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170 | switch (strlen($byteword) * 8) { |
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171 | case 32: |
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172 | $exponentbits = 8; |
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173 | $fractionbits = 23; |
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174 | break; |
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175 | |
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176 | case 64: |
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177 | $exponentbits = 11; |
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178 | $fractionbits = 52; |
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179 | break; |
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180 | |
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181 | case 80: |
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182 | // 80-bit Apple SANE format |
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183 | // http://www.mactech.com/articles/mactech/Vol.06/06.01/SANENormalized/ |
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184 | $exponentstring = substr($bitword, 1, 15); |
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185 | $isnormalized = intval($bitword{16}); |
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186 | $fractionstring = substr($bitword, 17, 63); |
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187 | $exponent = pow(2, getid3_lib::Bin2Dec($exponentstring) - 16383); |
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188 | $fraction = $isnormalized + getid3_lib::DecimalBinary2Float($fractionstring); |
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189 | $floatvalue = $exponent * $fraction; |
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190 | if ($signbit == '1') { |
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191 | $floatvalue *= -1; |
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192 | } |
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193 | return $floatvalue; |
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194 | break; |
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195 | |
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196 | default: |
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197 | return false; |
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198 | break; |
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199 | } |
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200 | $exponentstring = substr($bitword, 1, $exponentbits); |
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201 | $fractionstring = substr($bitword, $exponentbits + 1, $fractionbits); |
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202 | $exponent = getid3_lib::Bin2Dec($exponentstring); |
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203 | $fraction = getid3_lib::Bin2Dec($fractionstring); |
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204 | |
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205 | if (($exponent == (pow(2, $exponentbits) - 1)) && ($fraction != 0)) { |
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206 | // Not a Number |
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207 | $floatvalue = false; |
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208 | } elseif (($exponent == (pow(2, $exponentbits) - 1)) && ($fraction == 0)) { |
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209 | if ($signbit == '1') { |
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210 | $floatvalue = '-infinity'; |
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211 | } else { |
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212 | $floatvalue = '+infinity'; |
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213 | } |
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214 | } elseif (($exponent == 0) && ($fraction == 0)) { |
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215 | if ($signbit == '1') { |
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216 | $floatvalue = -0; |
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217 | } else { |
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218 | $floatvalue = 0; |
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219 | } |
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220 | $floatvalue = ($signbit ? 0 : -0); |
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221 | } elseif (($exponent == 0) && ($fraction != 0)) { |
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222 | // These are 'unnormalized' values |
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223 | $floatvalue = pow(2, (-1 * (pow(2, $exponentbits - 1) - 2))) * getid3_lib::DecimalBinary2Float($fractionstring); |
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224 | if ($signbit == '1') { |
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225 | $floatvalue *= -1; |
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226 | } |
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227 | } elseif ($exponent != 0) { |
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228 | $floatvalue = pow(2, ($exponent - (pow(2, $exponentbits - 1) - 1))) * (1 + getid3_lib::DecimalBinary2Float($fractionstring)); |
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229 | if ($signbit == '1') { |
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230 | $floatvalue *= -1; |
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231 | } |
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232 | } |
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233 | return (float) $floatvalue; |
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234 | } |
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235 | |
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236 | |
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237 | function BigEndian2Int($byteword, $synchsafe=false, $signed=false) { |
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238 | $intvalue = 0; |
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239 | $bytewordlen = strlen($byteword); |
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240 | for ($i = 0; $i < $bytewordlen; $i++) { |
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241 | if ($synchsafe) { // disregard MSB, effectively 7-bit bytes |
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242 | $intvalue = $intvalue | (ord($byteword{$i}) & 0x7F) << (($bytewordlen - 1 - $i) * 7); |
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243 | } else { |
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244 | $intvalue += ord($byteword{$i}) * pow(256, ($bytewordlen - 1 - $i)); |
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245 | } |
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246 | } |
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247 | if ($signed && !$synchsafe) { |
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248 | // synchsafe ints are not allowed to be signed |
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249 | switch ($bytewordlen) { |
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250 | case 1: |
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251 | case 2: |
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252 | case 3: |
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253 | case 4: |
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254 | $signmaskbit = 0x80 << (8 * ($bytewordlen - 1)); |
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255 | if ($intvalue & $signmaskbit) { |
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256 | $intvalue = 0 - ($intvalue & ($signmaskbit - 1)); |
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257 | } |
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258 | break; |
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259 | |
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260 | default: |
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261 | die('ERROR: Cannot have signed integers larger than 32-bits in getid3_lib::BigEndian2Int()'); |
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262 | break; |
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263 | } |
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264 | } |
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265 | return getid3_lib::CastAsInt($intvalue); |
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266 | } |
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267 | |
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268 | |
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269 | function LittleEndian2Int($byteword, $signed=false) { |
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270 | return getid3_lib::BigEndian2Int(strrev($byteword), false, $signed); |
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271 | } |
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272 | |
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273 | |
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274 | function BigEndian2Bin($byteword) { |
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275 | $binvalue = ''; |
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276 | $bytewordlen = strlen($byteword); |
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277 | for ($i = 0; $i < $bytewordlen; $i++) { |
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278 | $binvalue .= str_pad(decbin(ord($byteword{$i})), 8, '0', STR_PAD_LEFT); |
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279 | } |
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280 | return $binvalue; |
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281 | } |
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282 | |
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283 | |
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284 | function BigEndian2String($number, $minbytes=1, $synchsafe=false, $signed=false) { |
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285 | if ($number < 0) { |
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286 | return false; |
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287 | } |
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288 | $maskbyte = (($synchsafe || $signed) ? 0x7F : 0xFF); |
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289 | $intstring = ''; |
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290 | if ($signed) { |
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291 | if ($minbytes > 4) { |
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292 | die('ERROR: Cannot have signed integers larger than 32-bits in getid3_lib::BigEndian2String()'); |
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293 | } |
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294 | $number = $number & (0x80 << (8 * ($minbytes - 1))); |
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295 | } |
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296 | while ($number != 0) { |
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297 | $quotient = ($number / ($maskbyte + 1)); |
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298 | $intstring = chr(ceil(($quotient - floor($quotient)) * $maskbyte)).$intstring; |
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299 | $number = floor($quotient); |
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300 | } |
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301 | return str_pad($intstring, $minbytes, "\x00", STR_PAD_LEFT); |
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302 | } |
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303 | |
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304 | |
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305 | function Dec2Bin($number) { |
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306 | while ($number >= 256) { |
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307 | $bytes[] = (($number / 256) - (floor($number / 256))) * 256; |
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308 | $number = floor($number / 256); |
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309 | } |
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310 | $bytes[] = $number; |
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311 | $binstring = ''; |
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312 | for ($i = 0; $i < count($bytes); $i++) { |
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313 | $binstring = (($i == count($bytes) - 1) ? decbin($bytes[$i]) : str_pad(decbin($bytes[$i]), 8, '0', STR_PAD_LEFT)).$binstring; |
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314 | } |
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315 | return $binstring; |
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316 | } |
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317 | |
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318 | |
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319 | function Bin2Dec($binstring, $signed=false) { |
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320 | $signmult = 1; |
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321 | if ($signed) { |
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322 | if ($binstring{0} == '1') { |
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323 | $signmult = -1; |
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324 | } |
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325 | $binstring = substr($binstring, 1); |
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326 | } |
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327 | $decvalue = 0; |
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328 | for ($i = 0; $i < strlen($binstring); $i++) { |
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329 | $decvalue += ((int) substr($binstring, strlen($binstring) - $i - 1, 1)) * pow(2, $i); |
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330 | } |
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331 | return getid3_lib::CastAsInt($decvalue * $signmult); |
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332 | } |
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333 | |
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334 | |
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335 | function Bin2String($binstring) { |
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336 | // return 'hi' for input of '0110100001101001' |
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337 | $string = ''; |
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338 | $binstringreversed = strrev($binstring); |
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339 | for ($i = 0; $i < strlen($binstringreversed); $i += 8) { |
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340 | $string = chr(getid3_lib::Bin2Dec(strrev(substr($binstringreversed, $i, 8)))).$string; |
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341 | } |
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342 | return $string; |
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343 | } |
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344 | |
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345 | |
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346 | function LittleEndian2String($number, $minbytes=1, $synchsafe=false) { |
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347 | $intstring = ''; |
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348 | while ($number > 0) { |
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349 | if ($synchsafe) { |
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350 | $intstring = $intstring.chr($number & 127); |
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351 | $number >>= 7; |
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352 | } else { |
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353 | $intstring = $intstring.chr($number & 255); |
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354 | $number >>= 8; |
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355 | } |
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356 | } |
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357 | return str_pad($intstring, $minbytes, "\x00", STR_PAD_RIGHT); |
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358 | } |
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359 | |
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360 | |
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361 | function array_merge_clobber($array1, $array2) { |
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362 | // written by kcØhireability*com |
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363 | // taken from http://www.php.net/manual/en/function.array-merge-recursive.php |
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364 | if (!is_array($array1) || !is_array($array2)) { |
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365 | return false; |
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366 | } |
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367 | $newarray = $array1; |
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368 | foreach ($array2 as $key => $val) { |
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369 | if (is_array($val) && isset($newarray[$key]) && is_array($newarray[$key])) { |
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370 | $newarray[$key] = getid3_lib::array_merge_clobber($newarray[$key], $val); |
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371 | } else { |
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372 | $newarray[$key] = $val; |
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373 | } |
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374 | } |
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375 | return $newarray; |
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376 | } |
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377 | |
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378 | |
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379 | function array_merge_noclobber($array1, $array2) { |
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380 | if (!is_array($array1) || !is_array($array2)) { |
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381 | return false; |
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382 | } |
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383 | $newarray = $array1; |
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384 | foreach ($array2 as $key => $val) { |
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385 | if (is_array($val) && isset($newarray[$key]) && is_array($newarray[$key])) { |
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386 | $newarray[$key] = getid3_lib::array_merge_noclobber($newarray[$key], $val); |
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387 | } elseif (!isset($newarray[$key])) { |
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388 | $newarray[$key] = $val; |
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389 | } |
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390 | } |
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391 | return $newarray; |
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392 | } |
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393 | |
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394 | |
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395 | function fileextension($filename, $numextensions=1) { |
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396 | if (strstr($filename, '.')) { |
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397 | $reversedfilename = strrev($filename); |
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398 | $offset = 0; |
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399 | for ($i = 0; $i < $numextensions; $i++) { |
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400 | $offset = strpos($reversedfilename, '.', $offset + 1); |
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401 | if ($offset === false) { |
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402 | return ''; |
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403 | } |
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404 | } |
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405 | return strrev(substr($reversedfilename, 0, $offset)); |
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406 | } |
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407 | return ''; |
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408 | } |
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409 | |
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410 | |
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411 | function PlaytimeString($playtimeseconds) { |
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412 | $sign = (($playtimeseconds < 0) ? '-' : ''); |
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413 | $playtimeseconds = abs($playtimeseconds); |
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414 | $contentseconds = round((($playtimeseconds / 60) - floor($playtimeseconds / 60)) * 60); |
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415 | $contentminutes = floor($playtimeseconds / 60); |
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416 | if ($contentseconds >= 60) { |
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417 | $contentseconds -= 60; |
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418 | $contentminutes++; |
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419 | } |
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420 | return $sign.intval($contentminutes).':'.str_pad($contentseconds, 2, 0, STR_PAD_LEFT); |
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421 | } |
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422 | |
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423 | |
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424 | function image_type_to_mime_type($imagetypeid) { |
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425 | // only available in PHP v4.3.0+ |
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426 | static $image_type_to_mime_type = array(); |
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427 | if (empty($image_type_to_mime_type)) { |
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428 | $image_type_to_mime_type[1] = 'image/gif'; // GIF |
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429 | $image_type_to_mime_type[2] = 'image/jpeg'; // JPEG |
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430 | $image_type_to_mime_type[3] = 'image/png'; // PNG |
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431 | $image_type_to_mime_type[4] = 'application/x-shockwave-flash'; // Flash |
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432 | $image_type_to_mime_type[5] = 'image/psd'; // PSD |
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433 | $image_type_to_mime_type[6] = 'image/bmp'; // BMP |
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434 | $image_type_to_mime_type[7] = 'image/tiff'; // TIFF: little-endian (Intel) |
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435 | $image_type_to_mime_type[8] = 'image/tiff'; // TIFF: big-endian (Motorola) |
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436 | //$image_type_to_mime_type[9] = 'image/jpc'; // JPC |
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437 | //$image_type_to_mime_type[10] = 'image/jp2'; // JPC |
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438 | //$image_type_to_mime_type[11] = 'image/jpx'; // JPC |
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439 | //$image_type_to_mime_type[12] = 'image/jb2'; // JPC |
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440 | $image_type_to_mime_type[13] = 'application/x-shockwave-flash'; // Shockwave |
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441 | $image_type_to_mime_type[14] = 'image/iff'; // IFF |
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442 | } |
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443 | return (isset($image_type_to_mime_type[$imagetypeid]) ? $image_type_to_mime_type[$imagetypeid] : 'application/octet-stream'); |
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444 | } |
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445 | |
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446 | |
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447 | function DateMac2Unix($macdate) { |
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448 | // Macintosh timestamp: seconds since 00:00h January 1, 1904 |
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449 | // UNIX timestamp: seconds since 00:00h January 1, 1970 |
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450 | return getid3_lib::CastAsInt($macdate - 2082844800); |
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451 | } |
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452 | |
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453 | |
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454 | function FixedPoint8_8($rawdata) { |
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455 | return getid3_lib::BigEndian2Int(substr($rawdata, 0, 1)) + (float) (getid3_lib::BigEndian2Int(substr($rawdata, 1, 1)) / pow(2, 8)); |
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456 | } |
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457 | |
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458 | |
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459 | function FixedPoint16_16($rawdata) { |
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460 | return getid3_lib::BigEndian2Int(substr($rawdata, 0, 2)) + (float) (getid3_lib::BigEndian2Int(substr($rawdata, 2, 2)) / pow(2, 16)); |
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461 | } |
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462 | |
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463 | |
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464 | function FixedPoint2_30($rawdata) { |
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465 | $binarystring = getid3_lib::BigEndian2Bin($rawdata); |
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466 | return getid3_lib::Bin2Dec(substr($binarystring, 0, 2)) + (float) (getid3_lib::Bin2Dec(substr($binarystring, 2, 30)) / 1073741824); |
---|
467 | } |
---|
468 | |
---|
469 | |
---|
470 | function CreateDeepArray($ArrayPath, $Separator, $Value) { |
---|
471 | // assigns $Value to a nested array path: |
---|
472 | // $foo = getid3_lib::CreateDeepArray('/path/to/my', '/', 'file.txt') |
---|
473 | // is the same as: |
---|
474 | // $foo = array('path'=>array('to'=>'array('my'=>array('file.txt')))); |
---|
475 | // or |
---|
476 | // $foo['path']['to']['my'] = 'file.txt'; |
---|
477 | while ($ArrayPath && ($ArrayPath{0} == $Separator)) { |
---|
478 | $ArrayPath = substr($ArrayPath, 1); |
---|
479 | } |
---|
480 | if (($pos = strpos($ArrayPath, $Separator)) !== false) { |
---|
481 | $ReturnedArray[substr($ArrayPath, 0, $pos)] = getid3_lib::CreateDeepArray(substr($ArrayPath, $pos + 1), $Separator, $Value); |
---|
482 | } else { |
---|
483 | $ReturnedArray[$ArrayPath] = $Value; |
---|
484 | } |
---|
485 | return $ReturnedArray; |
---|
486 | } |
---|
487 | |
---|
488 | function array_max($arraydata, $returnkey=false) { |
---|
489 | $maxvalue = false; |
---|
490 | $maxkey = false; |
---|
491 | foreach ($arraydata as $key => $value) { |
---|
492 | if (!is_array($value)) { |
---|
493 | if ($value > $maxvalue) { |
---|
494 | $maxvalue = $value; |
---|
495 | $maxkey = $key; |
---|
496 | } |
---|
497 | } |
---|
498 | } |
---|
499 | return ($returnkey ? $maxkey : $maxvalue); |
---|
500 | } |
---|
501 | |
---|
502 | function array_min($arraydata, $returnkey=false) { |
---|
503 | $minvalue = false; |
---|
504 | $minkey = false; |
---|
505 | foreach ($arraydata as $key => $value) { |
---|
506 | if (!is_array($value)) { |
---|
507 | if ($value > $minvalue) { |
---|
508 | $minvalue = $value; |
---|
509 | $minkey = $key; |
---|
510 | } |
---|
511 | } |
---|
512 | } |
---|
513 | return ($returnkey ? $minkey : $minvalue); |
---|
514 | } |
---|
515 | |
---|
516 | |
---|
517 | function md5_file($file) { |
---|
518 | |
---|
519 | // md5_file() exists in PHP 4.2.0+. |
---|
520 | if (function_exists('md5_file')) { |
---|
521 | return md5_file($file); |
---|
522 | } |
---|
523 | |
---|
524 | if (GETID3_OS_ISWINDOWS) { |
---|
525 | |
---|
526 | $RequiredFiles = array('cygwin1.dll', 'md5sum.exe'); |
---|
527 | foreach ($RequiredFiles as $required_file) { |
---|
528 | if (!is_readable(GETID3_HELPERAPPSDIR.$required_file)) { |
---|
529 | die(implode(' and ', $RequiredFiles).' are required in '.GETID3_HELPERAPPSDIR.' for getid3_lib::md5_file() to function under Windows in PHP < v4.2.0'); |
---|
530 | } |
---|
531 | } |
---|
532 | $commandline = GETID3_HELPERAPPSDIR.'md5sum.exe "'.str_replace('/', DIRECTORY_SEPARATOR, $file).'"'; |
---|
533 | if (ereg("^[\\]?([0-9a-f]{32})", strtolower(`$commandline`), $r)) { |
---|
534 | return $r[1]; |
---|
535 | } |
---|
536 | |
---|
537 | } else { |
---|
538 | |
---|
539 | // The following works under UNIX only |
---|
540 | $file = str_replace('`', '\\`', $file); |
---|
541 | if (ereg("^([0-9a-f]{32})[ \t\n\r]", `md5sum "$file"`, $r)) { |
---|
542 | return $r[1]; |
---|
543 | } |
---|
544 | |
---|
545 | } |
---|
546 | return false; |
---|
547 | } |
---|
548 | |
---|
549 | |
---|
550 | function sha1_file($file) { |
---|
551 | |
---|
552 | // sha1_file() exists in PHP 4.3.0+. |
---|
553 | if (function_exists('sha1_file')) { |
---|
554 | return sha1_file($file); |
---|
555 | } |
---|
556 | |
---|
557 | $file = str_replace('`', '\\`', $file); |
---|
558 | |
---|
559 | if (GETID3_OS_ISWINDOWS) { |
---|
560 | |
---|
561 | $RequiredFiles = array('cygwin1.dll', 'sha1sum.exe'); |
---|
562 | foreach ($RequiredFiles as $required_file) { |
---|
563 | if (!is_readable(GETID3_HELPERAPPSDIR.$required_file)) { |
---|
564 | die(implode(' and ', $RequiredFiles).' are required in '.GETID3_HELPERAPPSDIR.' for getid3_lib::sha1_file() to function under Windows in PHP < v4.3.0'); |
---|
565 | } |
---|
566 | } |
---|
567 | $commandline = GETID3_HELPERAPPSDIR.'sha1sum.exe "'.str_replace('/', DIRECTORY_SEPARATOR, $file).'"'; |
---|
568 | if (ereg("^sha1=([0-9a-f]{40})", strtolower(`$commandline`), $r)) { |
---|
569 | return $r[1]; |
---|
570 | } |
---|
571 | |
---|
572 | } else { |
---|
573 | |
---|
574 | $commandline = 'sha1sum '.escapeshellarg($file).''; |
---|
575 | if (ereg("^([0-9a-f]{40})[ \t\n\r]", strtolower(`$commandline`), $r)) { |
---|
576 | return $r[1]; |
---|
577 | } |
---|
578 | |
---|
579 | } |
---|
580 | |
---|
581 | return false; |
---|
582 | } |
---|
583 | |
---|
584 | |
---|
585 | // Allan Hansen <ahØartemis*dk> |
---|
586 | // getid3_lib::md5_data() - returns md5sum for a file from startuing position to absolute end position |
---|
587 | function hash_data($file, $offset, $end, $algorithm) { |
---|
588 | if ($end >= pow(2, 31)) { |
---|
589 | return false; |
---|
590 | } |
---|
591 | |
---|
592 | switch ($algorithm) { |
---|
593 | case 'md5': |
---|
594 | $hash_function = 'md5_file'; |
---|
595 | $unix_call = 'md5sum'; |
---|
596 | $windows_call = 'md5sum.exe'; |
---|
597 | $hash_length = 32; |
---|
598 | break; |
---|
599 | |
---|
600 | case 'sha1': |
---|
601 | $hash_function = 'sha1_file'; |
---|
602 | $unix_call = 'sha1sum'; |
---|
603 | $windows_call = 'sha1sum.exe'; |
---|
604 | $hash_length = 40; |
---|
605 | break; |
---|
606 | |
---|
607 | default: |
---|
608 | die('Invalid algorithm ('.$algorithm.') in getid3_lib::hash_data()'); |
---|
609 | break; |
---|
610 | } |
---|
611 | $size = $end - $offset; |
---|
612 | while (true) { |
---|
613 | if (GETID3_OS_ISWINDOWS) { |
---|
614 | |
---|
615 | // It seems that sha1sum.exe for Windows only works on physical files, does not accept piped data |
---|
616 | // Fall back to create-temp-file method: |
---|
617 | if ($algorithm == 'sha1') { |
---|
618 | break; |
---|
619 | } |
---|
620 | |
---|
621 | $RequiredFiles = array('cygwin1.dll', 'head.exe', 'tail.exe', $windows_call); |
---|
622 | foreach ($RequiredFiles as $required_file) { |
---|
623 | if (!is_readable(GETID3_HELPERAPPSDIR.$required_file)) { |
---|
624 | // helper apps not available - fall back to old method |
---|
625 | break; |
---|
626 | } |
---|
627 | } |
---|
628 | $commandline = GETID3_HELPERAPPSDIR.'head.exe -c '.$end.' "'.escapeshellarg(str_replace('/', DIRECTORY_SEPARATOR, $file)).'" | '; |
---|
629 | $commandline .= GETID3_HELPERAPPSDIR.'tail.exe -c '.$size.' | '; |
---|
630 | $commandline .= GETID3_HELPERAPPSDIR.$windows_call; |
---|
631 | |
---|
632 | } else { |
---|
633 | |
---|
634 | $commandline = 'head -c'.$end.' '.escapeshellarg($file).' | '; |
---|
635 | $commandline .= 'tail -c'.$size.' | '; |
---|
636 | $commandline .= $unix_call; |
---|
637 | |
---|
638 | } |
---|
639 | if ((bool) ini_get('safe_mode')) { |
---|
640 | $ThisFileInfo['warning'][] = 'PHP running in Safe Mode - backtick operator not available, using slower non-system-call '.$algorithm.' algorithm'; |
---|
641 | break; |
---|
642 | } |
---|
643 | return substr(`$commandline`, 0, $hash_length); |
---|
644 | } |
---|
645 | |
---|
646 | // try to create a temporary file in the system temp directory - invalid dirname should force to system temp dir |
---|
647 | if (($data_filename = tempnam('*', 'getID3')) === false) { |
---|
648 | // can't find anywhere to create a temp file, just die |
---|
649 | return false; |
---|
650 | } |
---|
651 | |
---|
652 | // Init |
---|
653 | $result = false; |
---|
654 | |
---|
655 | // copy parts of file |
---|
656 | if ($fp = @fopen($file, 'rb')) { |
---|
657 | |
---|
658 | if ($fp_data = @fopen($data_filename, 'wb')) { |
---|
659 | |
---|
660 | fseek($fp, $offset, SEEK_SET); |
---|
661 | $byteslefttowrite = $end - $offset; |
---|
662 | while (($byteslefttowrite > 0) && ($buffer = fread($fp, GETID3_FREAD_BUFFER_SIZE))) { |
---|
663 | $byteswritten = fwrite($fp_data, $buffer, $byteslefttowrite); |
---|
664 | $byteslefttowrite -= $byteswritten; |
---|
665 | } |
---|
666 | fclose($fp_data); |
---|
667 | $result = getid3_lib::$hash_function($data_filename); |
---|
668 | |
---|
669 | } |
---|
670 | fclose($fp); |
---|
671 | } |
---|
672 | unlink($data_filename); |
---|
673 | return $result; |
---|
674 | } |
---|
675 | |
---|
676 | |
---|
677 | function iconv_fallback_int_utf8($charval) { |
---|
678 | if ($charval < 128) { |
---|
679 | // 0bbbbbbb |
---|
680 | $newcharstring = chr($charval); |
---|
681 | } elseif ($charval < 2048) { |
---|
682 | // 110bbbbb 10bbbbbb |
---|
683 | $newcharstring = chr(($charval >> 6) | 0xC0); |
---|
684 | $newcharstring .= chr(($charval & 0x3F) | 0x80); |
---|
685 | } elseif ($charval < 65536) { |
---|
686 | // 1110bbbb 10bbbbbb 10bbbbbb |
---|
687 | $newcharstring = chr(($charval >> 12) | 0xE0); |
---|
688 | $newcharstring .= chr(($charval >> 6) | 0xC0); |
---|
689 | $newcharstring .= chr(($charval & 0x3F) | 0x80); |
---|
690 | } else { |
---|
691 | // 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb |
---|
692 | $newcharstring = chr(($charval >> 18) | 0xF0); |
---|
693 | $newcharstring .= chr(($charval >> 12) | 0xC0); |
---|
694 | $newcharstring .= chr(($charval >> 6) | 0xC0); |
---|
695 | $newcharstring .= chr(($charval & 0x3F) | 0x80); |
---|
696 | } |
---|
697 | return $newcharstring; |
---|
698 | } |
---|
699 | |
---|
700 | // ISO-8859-1 => UTF-8 |
---|
701 | function iconv_fallback_iso88591_utf8($string, $bom=false) { |
---|
702 | if (function_exists('utf8_encode')) { |
---|
703 | return utf8_encode($string); |
---|
704 | } |
---|
705 | // utf8_encode() unavailable, use getID3()'s iconv_fallback() conversions (possibly PHP is compiled without XML support) |
---|
706 | $newcharstring = ''; |
---|
707 | if ($bom) { |
---|
708 | $newcharstring .= "\xEF\xBB\xBF"; |
---|
709 | } |
---|
710 | for ($i = 0; $i < strlen($string); $i++) { |
---|
711 | $charval = ord($string{$i}); |
---|
712 | $newcharstring .= getid3_lib::iconv_fallback_int_utf8($charval); |
---|
713 | } |
---|
714 | return $newcharstring; |
---|
715 | } |
---|
716 | |
---|
717 | // ISO-8859-1 => UTF-16BE |
---|
718 | function iconv_fallback_iso88591_utf16be($string, $bom=false) { |
---|
719 | $newcharstring = ''; |
---|
720 | if ($bom) { |
---|
721 | $newcharstring .= "\xFE\xFF"; |
---|
722 | } |
---|
723 | for ($i = 0; $i < strlen($string); $i++) { |
---|
724 | $newcharstring .= "\x00".$string{$i}; |
---|
725 | } |
---|
726 | return $newcharstring; |
---|
727 | } |
---|
728 | |
---|
729 | // ISO-8859-1 => UTF-16LE |
---|
730 | function iconv_fallback_iso88591_utf16le($string, $bom=false) { |
---|
731 | $newcharstring = ''; |
---|
732 | if ($bom) { |
---|
733 | $newcharstring .= "\xFF\xFE"; |
---|
734 | } |
---|
735 | for ($i = 0; $i < strlen($string); $i++) { |
---|
736 | $newcharstring .= $string{$i}."\x00"; |
---|
737 | } |
---|
738 | return $newcharstring; |
---|
739 | } |
---|
740 | |
---|
741 | // ISO-8859-1 => UTF-16LE (BOM) |
---|
742 | function iconv_fallback_iso88591_utf16($string) { |
---|
743 | return getid3_lib::iconv_fallback_iso88591_utf16le($string, true); |
---|
744 | } |
---|
745 | |
---|
746 | // UTF-8 => ISO-8859-1 |
---|
747 | function iconv_fallback_utf8_iso88591($string) { |
---|
748 | if (function_exists('utf8_decode')) { |
---|
749 | return utf8_decode($string); |
---|
750 | } |
---|
751 | // utf8_decode() unavailable, use getID3()'s iconv_fallback() conversions (possibly PHP is compiled without XML support) |
---|
752 | $newcharstring = ''; |
---|
753 | $offset = 0; |
---|
754 | $stringlength = strlen($string); |
---|
755 | while ($offset < $stringlength) { |
---|
756 | if ((ord($string{$offset}) | 0x07) == 0xF7) { |
---|
757 | // 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb |
---|
758 | $charval = ((ord($string{($offset + 0)}) & 0x07) << 18) & |
---|
759 | ((ord($string{($offset + 1)}) & 0x3F) << 12) & |
---|
760 | ((ord($string{($offset + 2)}) & 0x3F) << 6) & |
---|
761 | (ord($string{($offset + 3)}) & 0x3F); |
---|
762 | $offset += 4; |
---|
763 | } elseif ((ord($string{$offset}) | 0x0F) == 0xEF) { |
---|
764 | // 1110bbbb 10bbbbbb 10bbbbbb |
---|
765 | $charval = ((ord($string{($offset + 0)}) & 0x0F) << 12) & |
---|
766 | ((ord($string{($offset + 1)}) & 0x3F) << 6) & |
---|
767 | (ord($string{($offset + 2)}) & 0x3F); |
---|
768 | $offset += 3; |
---|
769 | } elseif ((ord($string{$offset}) | 0x1F) == 0xDF) { |
---|
770 | // 110bbbbb 10bbbbbb |
---|
771 | $charval = ((ord($string{($offset + 0)}) & 0x1F) << 6) & |
---|
772 | (ord($string{($offset + 1)}) & 0x3F); |
---|
773 | $offset += 2; |
---|
774 | } elseif ((ord($string{$offset}) | 0x7F) == 0x7F) { |
---|
775 | // 0bbbbbbb |
---|
776 | $charval = ord($string{$offset}); |
---|
777 | $offset += 1; |
---|
778 | } else { |
---|
779 | // error? throw some kind of warning here? |
---|
780 | $charval = false; |
---|
781 | $offset += 1; |
---|
782 | } |
---|
783 | if ($charval !== false) { |
---|
784 | $newcharstring .= (($charval < 256) ? chr($charval) : '?'); |
---|
785 | } |
---|
786 | } |
---|
787 | return $newcharstring; |
---|
788 | } |
---|
789 | |
---|
790 | // UTF-8 => UTF-16BE |
---|
791 | function iconv_fallback_utf8_utf16be($string, $bom=false) { |
---|
792 | $newcharstring = ''; |
---|
793 | if ($bom) { |
---|
794 | $newcharstring .= "\xFE\xFF"; |
---|
795 | } |
---|
796 | $offset = 0; |
---|
797 | $stringlength = strlen($string); |
---|
798 | while ($offset < $stringlength) { |
---|
799 | if ((ord($string{$offset}) | 0x07) == 0xF7) { |
---|
800 | // 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb |
---|
801 | $charval = ((ord($string{($offset + 0)}) & 0x07) << 18) & |
---|
802 | ((ord($string{($offset + 1)}) & 0x3F) << 12) & |
---|
803 | ((ord($string{($offset + 2)}) & 0x3F) << 6) & |
---|
804 | (ord($string{($offset + 3)}) & 0x3F); |
---|
805 | $offset += 4; |
---|
806 | } elseif ((ord($string{$offset}) | 0x0F) == 0xEF) { |
---|
807 | // 1110bbbb 10bbbbbb 10bbbbbb |
---|
808 | $charval = ((ord($string{($offset + 0)}) & 0x0F) << 12) & |
---|
809 | ((ord($string{($offset + 1)}) & 0x3F) << 6) & |
---|
810 | (ord($string{($offset + 2)}) & 0x3F); |
---|
811 | $offset += 3; |
---|
812 | } elseif ((ord($string{$offset}) | 0x1F) == 0xDF) { |
---|
813 | // 110bbbbb 10bbbbbb |
---|
814 | $charval = ((ord($string{($offset + 0)}) & 0x1F) << 6) & |
---|
815 | (ord($string{($offset + 1)}) & 0x3F); |
---|
816 | $offset += 2; |
---|
817 | } elseif ((ord($string{$offset}) | 0x7F) == 0x7F) { |
---|
818 | // 0bbbbbbb |
---|
819 | $charval = ord($string{$offset}); |
---|
820 | $offset += 1; |
---|
821 | } else { |
---|
822 | // error? throw some kind of warning here? |
---|
823 | $charval = false; |
---|
824 | $offset += 1; |
---|
825 | } |
---|
826 | if ($charval !== false) { |
---|
827 | $newcharstring .= (($charval < 65536) ? getid3_lib::BigEndian2String($charval, 2) : "\x00".'?'); |
---|
828 | } |
---|
829 | } |
---|
830 | return $newcharstring; |
---|
831 | } |
---|
832 | |
---|
833 | // UTF-8 => UTF-16LE |
---|
834 | function iconv_fallback_utf8_utf16le($string, $bom=false) { |
---|
835 | $newcharstring = ''; |
---|
836 | if ($bom) { |
---|
837 | $newcharstring .= "\xFF\xFE"; |
---|
838 | } |
---|
839 | $offset = 0; |
---|
840 | $stringlength = strlen($string); |
---|
841 | while ($offset < $stringlength) { |
---|
842 | if ((ord($string{$offset}) | 0x07) == 0xF7) { |
---|
843 | // 11110bbb 10bbbbbb 10bbbbbb 10bbbbbb |
---|
844 | $charval = ((ord($string{($offset + 0)}) & 0x07) << 18) & |
---|
845 | ((ord($string{($offset + 1)}) & 0x3F) << 12) & |
---|
846 | ((ord($string{($offset + 2)}) & 0x3F) << 6) & |
---|
847 | (ord($string{($offset + 3)}) & 0x3F); |
---|
848 | $offset += 4; |
---|
849 | } elseif ((ord($string{$offset}) | 0x0F) == 0xEF) { |
---|
850 | // 1110bbbb 10bbbbbb 10bbbbbb |
---|
851 | $charval = ((ord($string{($offset + 0)}) & 0x0F) << 12) & |
---|
852 | ((ord($string{($offset + 1)}) & 0x3F) << 6) & |
---|
853 | (ord($string{($offset + 2)}) & 0x3F); |
---|
854 | $offset += 3; |
---|
855 | } elseif ((ord($string{$offset}) | 0x1F) == 0xDF) { |
---|
856 | // 110bbbbb 10bbbbbb |
---|
857 | $charval = ((ord($string{($offset + 0)}) & 0x1F) << 6) & |
---|
858 | (ord($string{($offset + 1)}) & 0x3F); |
---|
859 | $offset += 2; |
---|
860 | } elseif ((ord($string{$offset}) | 0x7F) == 0x7F) { |
---|
861 | // 0bbbbbbb |
---|
862 | $charval = ord($string{$offset}); |
---|
863 | $offset += 1; |
---|
864 | } else { |
---|
865 | // error? maybe throw some warning here? |
---|
866 | $charval = false; |
---|
867 | $offset += 1; |
---|
868 | } |
---|
869 | if ($charval !== false) { |
---|
870 | $newcharstring .= (($charval < 65536) ? getid3_lib::LittleEndian2String($charval, 2) : '?'."\x00"); |
---|
871 | } |
---|
872 | } |
---|
873 | return $newcharstring; |
---|
874 | } |
---|
875 | |
---|
876 | // UTF-8 => UTF-16LE (BOM) |
---|
877 | function iconv_fallback_utf8_utf16($string) { |
---|
878 | return getid3_lib::iconv_fallback_utf8_utf16le($string, true); |
---|
879 | } |
---|
880 | |
---|
881 | // UTF-16BE => UTF-8 |
---|
882 | function iconv_fallback_utf16be_utf8($string) { |
---|
883 | if (substr($string, 0, 2) == "\xFE\xFF") { |
---|
884 | // strip BOM |
---|
885 | $string = substr($string, 2); |
---|
886 | } |
---|
887 | $newcharstring = ''; |
---|
888 | for ($i = 0; $i < strlen($string); $i += 2) { |
---|
889 | $charval = getid3_lib::BigEndian2Int(substr($string, $i, 2)); |
---|
890 | $newcharstring .= getid3_lib::iconv_fallback_int_utf8($charval); |
---|
891 | } |
---|
892 | return $newcharstring; |
---|
893 | } |
---|
894 | |
---|
895 | // UTF-16LE => UTF-8 |
---|
896 | function iconv_fallback_utf16le_utf8($string) { |
---|
897 | if (substr($string, 0, 2) == "\xFF\xFE") { |
---|
898 | // strip BOM |
---|
899 | $string = substr($string, 2); |
---|
900 | } |
---|
901 | $newcharstring = ''; |
---|
902 | for ($i = 0; $i < strlen($string); $i += 2) { |
---|
903 | $charval = getid3_lib::LittleEndian2Int(substr($string, $i, 2)); |
---|
904 | $newcharstring .= getid3_lib::iconv_fallback_int_utf8($charval); |
---|
905 | } |
---|
906 | return $newcharstring; |
---|
907 | } |
---|
908 | |
---|
909 | // UTF-16BE => ISO-8859-1 |
---|
910 | function iconv_fallback_utf16be_iso88591($string) { |
---|
911 | if (substr($string, 0, 2) == "\xFE\xFF") { |
---|
912 | // strip BOM |
---|
913 | $string = substr($string, 2); |
---|
914 | } |
---|
915 | $newcharstring = ''; |
---|
916 | for ($i = 0; $i < strlen($string); $i += 2) { |
---|
917 | $charval = getid3_lib::BigEndian2Int(substr($string, $i, 2)); |
---|
918 | $newcharstring .= (($charval < 256) ? chr($charval) : '?'); |
---|
919 | } |
---|
920 | return $newcharstring; |
---|
921 | } |
---|
922 | |
---|
923 | // UTF-16LE => ISO-8859-1 |
---|
924 | function iconv_fallback_utf16le_iso88591($string) { |
---|
925 | if (substr($string, 0, 2) == "\xFF\xFE") { |
---|
926 | // strip BOM |
---|
927 | $string = substr($string, 2); |
---|
928 | } |
---|
929 | $newcharstring = ''; |
---|
930 | for ($i = 0; $i < strlen($string); $i += 2) { |
---|
931 | $charval = getid3_lib::LittleEndian2Int(substr($string, $i, 2)); |
---|
932 | $newcharstring .= (($charval < 256) ? chr($charval) : '?'); |
---|
933 | } |
---|
934 | return $newcharstring; |
---|
935 | } |
---|
936 | |
---|
937 | // UTF-16 (BOM) => ISO-8859-1 |
---|
938 | function iconv_fallback_utf16_iso88591($string) { |
---|
939 | $bom = substr($string, 0, 2); |
---|
940 | if ($bom == "\xFE\xFF") { |
---|
941 | return getid3_lib::iconv_fallback_utf16be_iso88591(substr($string, 2)); |
---|
942 | } elseif ($bom == "\xFF\xFE") { |
---|
943 | return getid3_lib::iconv_fallback_utf16le_iso88591(substr($string, 2)); |
---|
944 | } |
---|
945 | return $string; |
---|
946 | } |
---|
947 | |
---|
948 | // UTF-16 (BOM) => UTF-8 |
---|
949 | function iconv_fallback_utf16_utf8($string) { |
---|
950 | $bom = substr($string, 0, 2); |
---|
951 | if ($bom == "\xFE\xFF") { |
---|
952 | return getid3_lib::iconv_fallback_utf16be_utf8(substr($string, 2)); |
---|
953 | } elseif ($bom == "\xFF\xFE") { |
---|
954 | return getid3_lib::iconv_fallback_utf16le_utf8(substr($string, 2)); |
---|
955 | } |
---|
956 | return $string; |
---|
957 | } |
---|
958 | |
---|
959 | function iconv_fallback($in_charset, $out_charset, $string) { |
---|
960 | |
---|
961 | if ($in_charset == $out_charset) { |
---|
962 | return $string; |
---|
963 | } |
---|
964 | |
---|
965 | // iconv() availble |
---|
966 | if (function_exists('iconv')) { |
---|
967 | |
---|
968 | if ($converted_string = @iconv($in_charset, $out_charset.'//TRANSLIT', $string)) { |
---|
969 | switch ($out_charset) { |
---|
970 | case 'ISO-8859-1': |
---|
971 | $converted_string = rtrim($converted_string, "\x00"); |
---|
972 | break; |
---|
973 | } |
---|
974 | return $converted_string; |
---|
975 | } |
---|
976 | |
---|
977 | // iconv() may sometimes fail with "illegal character in input string" error message |
---|
978 | // and return an empty string, but returning the unconverted string is more useful |
---|
979 | return $string; |
---|
980 | } |
---|
981 | |
---|
982 | |
---|
983 | // iconv() not available |
---|
984 | static $ConversionFunctionList = array(); |
---|
985 | if (empty($ConversionFunctionList)) { |
---|
986 | $ConversionFunctionList['ISO-8859-1']['UTF-8'] = 'iconv_fallback_iso88591_utf8'; |
---|
987 | $ConversionFunctionList['ISO-8859-1']['UTF-16'] = 'iconv_fallback_iso88591_utf16'; |
---|
988 | $ConversionFunctionList['ISO-8859-1']['UTF-16BE'] = 'iconv_fallback_iso88591_utf16be'; |
---|
989 | $ConversionFunctionList['ISO-8859-1']['UTF-16LE'] = 'iconv_fallback_iso88591_utf16le'; |
---|
990 | $ConversionFunctionList['UTF-8']['ISO-8859-1'] = 'iconv_fallback_utf8_iso88591'; |
---|
991 | $ConversionFunctionList['UTF-8']['UTF-16'] = 'iconv_fallback_utf8_utf16'; |
---|
992 | $ConversionFunctionList['UTF-8']['UTF-16BE'] = 'iconv_fallback_utf8_utf16be'; |
---|
993 | $ConversionFunctionList['UTF-8']['UTF-16LE'] = 'iconv_fallback_utf8_utf16le'; |
---|
994 | $ConversionFunctionList['UTF-16']['ISO-8859-1'] = 'iconv_fallback_utf16_iso88591'; |
---|
995 | $ConversionFunctionList['UTF-16']['UTF-8'] = 'iconv_fallback_utf16_utf8'; |
---|
996 | $ConversionFunctionList['UTF-16LE']['ISO-8859-1'] = 'iconv_fallback_utf16le_iso88591'; |
---|
997 | $ConversionFunctionList['UTF-16LE']['UTF-8'] = 'iconv_fallback_utf16le_utf8'; |
---|
998 | $ConversionFunctionList['UTF-16BE']['ISO-8859-1'] = 'iconv_fallback_utf16be_iso88591'; |
---|
999 | $ConversionFunctionList['UTF-16BE']['UTF-8'] = 'iconv_fallback_utf16be_utf8'; |
---|
1000 | } |
---|
1001 | if (isset($ConversionFunctionList[strtoupper($in_charset)][strtoupper($out_charset)])) { |
---|
1002 | $ConversionFunction = $ConversionFunctionList[strtoupper($in_charset)][strtoupper($out_charset)]; |
---|
1003 | return getid3_lib::$ConversionFunction($string); |
---|
1004 | } |
---|
1005 | die('PHP does not have iconv() support - cannot convert from '.$in_charset.' to '.$out_charset); |
---|
1006 | } |
---|
1007 | |
---|
1008 | |
---|
1009 | function MultiByteCharString2HTML($string, $charset='ISO-8859-1') { |
---|
1010 | $HTMLstring = ''; |
---|
1011 | |
---|
1012 | switch ($charset) { |
---|
1013 | case 'ISO-8859-1': |
---|
1014 | case 'ISO8859-1': |
---|
1015 | case 'ISO-8859-15': |
---|
1016 | case 'ISO8859-15': |
---|
1017 | case 'cp866': |
---|
1018 | case 'ibm866': |
---|
1019 | case '866': |
---|
1020 | case 'cp1251': |
---|
1021 | case 'Windows-1251': |
---|
1022 | case 'win-1251': |
---|
1023 | case '1251': |
---|
1024 | case 'cp1252': |
---|
1025 | case 'Windows-1252': |
---|
1026 | case '1252': |
---|
1027 | case 'KOI8-R': |
---|
1028 | case 'koi8-ru': |
---|
1029 | case 'koi8r': |
---|
1030 | case 'BIG5': |
---|
1031 | case '950': |
---|
1032 | case 'GB2312': |
---|
1033 | case '936': |
---|
1034 | case 'BIG5-HKSCS': |
---|
1035 | case 'Shift_JIS': |
---|
1036 | case 'SJIS': |
---|
1037 | case '932': |
---|
1038 | case 'EUC-JP': |
---|
1039 | case 'EUCJP': |
---|
1040 | $HTMLstring = htmlentities($string, ENT_COMPAT, $charset); |
---|
1041 | break; |
---|
1042 | |
---|
1043 | case 'UTF-8': |
---|
1044 | $strlen = strlen($string); |
---|
1045 | for ($i = 0; $i < $strlen; $i++) { |
---|
1046 | $char_ord_val = ord($string{$i}); |
---|
1047 | $charval = 0; |
---|
1048 | if ($char_ord_val < 0x80) { |
---|
1049 | $charval = $char_ord_val; |
---|
1050 | } elseif ((($char_ord_val & 0xF0) >> 4) == 0x0F && $i+3 < $strlen) { |
---|
1051 | $charval = (($char_ord_val & 0x07) << 18); |
---|
1052 | $charval += ((ord($string{++$i}) & 0x3F) << 12); |
---|
1053 | $charval += ((ord($string{++$i}) & 0x3F) << 6); |
---|
1054 | $charval += (ord($string{++$i}) & 0x3F); |
---|
1055 | } elseif ((($char_ord_val & 0xE0) >> 5) == 0x07 && $i+2 < $strlen) { |
---|
1056 | $charval = (($char_ord_val & 0x0F) << 12); |
---|
1057 | $charval += ((ord($string{++$i}) & 0x3F) << 6); |
---|
1058 | $charval += (ord($string{++$i}) & 0x3F); |
---|
1059 | } elseif ((($char_ord_val & 0xC0) >> 6) == 0x03 && $i+1 < $strlen) { |
---|
1060 | $charval = (($char_ord_val & 0x1F) << 6); |
---|
1061 | $charval += (ord($string{++$i}) & 0x3F); |
---|
1062 | } |
---|
1063 | if (($charval >= 32) && ($charval <= 127)) { |
---|
1064 | $HTMLstring .= htmlentities(chr($charval)); |
---|
1065 | } else { |
---|
1066 | $HTMLstring .= '&#'.$charval.';'; |
---|
1067 | } |
---|
1068 | } |
---|
1069 | break; |
---|
1070 | |
---|
1071 | case 'UTF-16LE': |
---|
1072 | for ($i = 0; $i < strlen($string); $i += 2) { |
---|
1073 | $charval = getid3_lib::LittleEndian2Int(substr($string, $i, 2)); |
---|
1074 | if (($charval >= 32) && ($charval <= 127)) { |
---|
1075 | $HTMLstring .= chr($charval); |
---|
1076 | } else { |
---|
1077 | $HTMLstring .= '&#'.$charval.';'; |
---|
1078 | } |
---|
1079 | } |
---|
1080 | break; |
---|
1081 | |
---|
1082 | case 'UTF-16BE': |
---|
1083 | for ($i = 0; $i < strlen($string); $i += 2) { |
---|
1084 | $charval = getid3_lib::BigEndian2Int(substr($string, $i, 2)); |
---|
1085 | if (($charval >= 32) && ($charval <= 127)) { |
---|
1086 | $HTMLstring .= chr($charval); |
---|
1087 | } else { |
---|
1088 | $HTMLstring .= '&#'.$charval.';'; |
---|
1089 | } |
---|
1090 | } |
---|
1091 | break; |
---|
1092 | |
---|
1093 | default: |
---|
1094 | $HTMLstring = 'ERROR: Character set "'.$charset.'" not supported in MultiByteCharString2HTML()'; |
---|
1095 | break; |
---|
1096 | } |
---|
1097 | return $HTMLstring; |
---|
1098 | } |
---|
1099 | |
---|
1100 | |
---|
1101 | |
---|
1102 | function RGADnameLookup($namecode) { |
---|
1103 | static $RGADname = array(); |
---|
1104 | if (empty($RGADname)) { |
---|
1105 | $RGADname[0] = 'not set'; |
---|
1106 | $RGADname[1] = 'Track Gain Adjustment'; |
---|
1107 | $RGADname[2] = 'Album Gain Adjustment'; |
---|
1108 | } |
---|
1109 | |
---|
1110 | return (isset($RGADname[$namecode]) ? $RGADname[$namecode] : ''); |
---|
1111 | } |
---|
1112 | |
---|
1113 | |
---|
1114 | function RGADoriginatorLookup($originatorcode) { |
---|
1115 | static $RGADoriginator = array(); |
---|
1116 | if (empty($RGADoriginator)) { |
---|
1117 | $RGADoriginator[0] = 'unspecified'; |
---|
1118 | $RGADoriginator[1] = 'pre-set by artist/producer/mastering engineer'; |
---|
1119 | $RGADoriginator[2] = 'set by user'; |
---|
1120 | $RGADoriginator[3] = 'determined automatically'; |
---|
1121 | } |
---|
1122 | |
---|
1123 | return (isset($RGADoriginator[$originatorcode]) ? $RGADoriginator[$originatorcode] : ''); |
---|
1124 | } |
---|
1125 | |
---|
1126 | |
---|
1127 | function RGADadjustmentLookup($rawadjustment, $signbit) { |
---|
1128 | $adjustment = $rawadjustment / 10; |
---|
1129 | if ($signbit == 1) { |
---|
1130 | $adjustment *= -1; |
---|
1131 | } |
---|
1132 | return (float) $adjustment; |
---|
1133 | } |
---|
1134 | |
---|
1135 | |
---|
1136 | function RGADgainString($namecode, $originatorcode, $replaygain) { |
---|
1137 | if ($replaygain < 0) { |
---|
1138 | $signbit = '1'; |
---|
1139 | } else { |
---|
1140 | $signbit = '0'; |
---|
1141 | } |
---|
1142 | $storedreplaygain = intval(round($replaygain * 10)); |
---|
1143 | $gainstring = str_pad(decbin($namecode), 3, '0', STR_PAD_LEFT); |
---|
1144 | $gainstring .= str_pad(decbin($originatorcode), 3, '0', STR_PAD_LEFT); |
---|
1145 | $gainstring .= $signbit; |
---|
1146 | $gainstring .= str_pad(decbin($storedreplaygain), 9, '0', STR_PAD_LEFT); |
---|
1147 | |
---|
1148 | return $gainstring; |
---|
1149 | } |
---|
1150 | |
---|
1151 | function RGADamplitude2dB($amplitude) { |
---|
1152 | return 20 * log10($amplitude); |
---|
1153 | } |
---|
1154 | |
---|
1155 | |
---|
1156 | function GetDataImageSize($imgData, &$imageinfo) { |
---|
1157 | $GetDataImageSize = false; |
---|
1158 | if ($tempfilename = tempnam('*', 'getID3')) { |
---|
1159 | if ($tmp = @fopen($tempfilename, 'wb')) { |
---|
1160 | fwrite($tmp, $imgData); |
---|
1161 | fclose($tmp); |
---|
1162 | $GetDataImageSize = @GetImageSize($tempfilename, $imageinfo); |
---|
1163 | } |
---|
1164 | unlink($tempfilename); |
---|
1165 | } |
---|
1166 | return $GetDataImageSize; |
---|
1167 | } |
---|
1168 | |
---|
1169 | function ImageTypesLookup($imagetypeid) { |
---|
1170 | static $ImageTypesLookup = array(); |
---|
1171 | if (empty($ImageTypesLookup)) { |
---|
1172 | $ImageTypesLookup[1] = 'gif'; |
---|
1173 | $ImageTypesLookup[2] = 'jpeg'; |
---|
1174 | $ImageTypesLookup[3] = 'png'; |
---|
1175 | $ImageTypesLookup[4] = 'swf'; |
---|
1176 | $ImageTypesLookup[5] = 'psd'; |
---|
1177 | $ImageTypesLookup[6] = 'bmp'; |
---|
1178 | $ImageTypesLookup[7] = 'tiff (little-endian)'; |
---|
1179 | $ImageTypesLookup[8] = 'tiff (big-endian)'; |
---|
1180 | $ImageTypesLookup[9] = 'jpc'; |
---|
1181 | $ImageTypesLookup[10] = 'jp2'; |
---|
1182 | $ImageTypesLookup[11] = 'jpx'; |
---|
1183 | $ImageTypesLookup[12] = 'jb2'; |
---|
1184 | $ImageTypesLookup[13] = 'swc'; |
---|
1185 | $ImageTypesLookup[14] = 'iff'; |
---|
1186 | } |
---|
1187 | return (isset($ImageTypesLookup[$imagetypeid]) ? $ImageTypesLookup[$imagetypeid] : ''); |
---|
1188 | } |
---|
1189 | |
---|
1190 | function CopyTagsToComments(&$ThisFileInfo) { |
---|
1191 | |
---|
1192 | // Copy all entries from ['tags'] into common ['comments'] |
---|
1193 | if (!empty($ThisFileInfo['tags'])) { |
---|
1194 | foreach ($ThisFileInfo['tags'] as $tagtype => $tagarray) { |
---|
1195 | foreach ($tagarray as $tagname => $tagdata) { |
---|
1196 | foreach ($tagdata as $key => $value) { |
---|
1197 | if (!empty($value)) { |
---|
1198 | if (empty($ThisFileInfo['comments'][$tagname])) { |
---|
1199 | |
---|
1200 | // fall through and append value |
---|
1201 | |
---|
1202 | } elseif ($tagtype == 'id3v1') { |
---|
1203 | |
---|
1204 | $newvaluelength = strlen(trim($value)); |
---|
1205 | foreach ($ThisFileInfo['comments'][$tagname] as $existingkey => $existingvalue) { |
---|
1206 | $oldvaluelength = strlen(trim($existingvalue)); |
---|
1207 | if (($newvaluelength <= $oldvaluelength) && (substr($existingvalue, 0, $newvaluelength) == trim($value))) { |
---|
1208 | // new value is identical but shorter-than (or equal-length to) one already in comments - skip |
---|
1209 | break 2; |
---|
1210 | } |
---|
1211 | } |
---|
1212 | |
---|
1213 | } else { |
---|
1214 | |
---|
1215 | $newvaluelength = strlen(trim($value)); |
---|
1216 | foreach ($ThisFileInfo['comments'][$tagname] as $existingkey => $existingvalue) { |
---|
1217 | $oldvaluelength = strlen(trim($existingvalue)); |
---|
1218 | if (($newvaluelength > $oldvaluelength) && (substr(trim($value), 0, strlen($existingvalue)) == $existingvalue)) { |
---|
1219 | $ThisFileInfo['comments'][$tagname][$existingkey] = trim($value); |
---|
1220 | break 2; |
---|
1221 | } |
---|
1222 | } |
---|
1223 | |
---|
1224 | } |
---|
1225 | if (empty($ThisFileInfo['comments'][$tagname]) || !in_array(trim($value), $ThisFileInfo['comments'][$tagname])) { |
---|
1226 | $ThisFileInfo['comments'][$tagname][] = trim($value); |
---|
1227 | } |
---|
1228 | } |
---|
1229 | } |
---|
1230 | } |
---|
1231 | } |
---|
1232 | |
---|
1233 | // Copy to ['comments_html'] |
---|
1234 | foreach ($ThisFileInfo['comments'] as $field => $values) { |
---|
1235 | foreach ($values as $index => $value) { |
---|
1236 | $ThisFileInfo['comments_html'][$field][$index] = str_replace('�', '', getid3_lib::MultiByteCharString2HTML($value, $ThisFileInfo['encoding'])); |
---|
1237 | } |
---|
1238 | } |
---|
1239 | } |
---|
1240 | } |
---|
1241 | |
---|
1242 | |
---|
1243 | function EmbeddedLookup($key, $begin, $end, $file, $name) { |
---|
1244 | |
---|
1245 | // Cached |
---|
1246 | static $cache; |
---|
1247 | if (isset($cache[$file][$name])) { |
---|
1248 | return @$cache[$file][$name][$key]; |
---|
1249 | } |
---|
1250 | |
---|
1251 | // Init |
---|
1252 | $keylength = strlen($key); |
---|
1253 | $line_count = $end - $begin - 7; |
---|
1254 | |
---|
1255 | // Open php file |
---|
1256 | $fp = fopen($file, 'r'); |
---|
1257 | |
---|
1258 | // Discard $begin lines |
---|
1259 | for ($i = 0; $i < ($begin + 3); $i++) { |
---|
1260 | fgets($fp, 1024); |
---|
1261 | } |
---|
1262 | |
---|
1263 | // Loop thru line |
---|
1264 | while (0 < $line_count--) { |
---|
1265 | |
---|
1266 | // Read line |
---|
1267 | $line = ltrim(fgets($fp, 1024), "\t "); |
---|
1268 | |
---|
1269 | // METHOD A: only cache the matching key - less memory but slower on next lookup of not-previously-looked-up key |
---|
1270 | //$keycheck = substr($line, 0, $keylength); |
---|
1271 | //if ($key == $keycheck) { |
---|
1272 | // $cache[$file][$name][$keycheck] = substr($line, $keylength + 1); |
---|
1273 | // break; |
---|
1274 | //} |
---|
1275 | |
---|
1276 | // METHOD B: cache all keys in this lookup - more memory but faster on next lookup of not-previously-looked-up key |
---|
1277 | //$cache[$file][$name][substr($line, 0, $keylength)] = trim(substr($line, $keylength + 1)); |
---|
1278 | @list($ThisKey, $ThisValue) = explode("\t", $line, 2); |
---|
1279 | $cache[$file][$name][$ThisKey] = trim($ThisValue); |
---|
1280 | } |
---|
1281 | |
---|
1282 | // Close and return |
---|
1283 | fclose($fp); |
---|
1284 | return @$cache[$file][$name][$key]; |
---|
1285 | } |
---|
1286 | |
---|
1287 | function IncludeDependency($filename, $sourcefile, $DieOnFailure=false) { |
---|
1288 | global $GETID3_ERRORARRAY; |
---|
1289 | |
---|
1290 | if (file_exists($filename)) { |
---|
1291 | if (@include_once($filename)) { |
---|
1292 | return true; |
---|
1293 | } else { |
---|
1294 | $diemessage = basename($sourcefile).' depends on '.$filename.', which has errors'; |
---|
1295 | } |
---|
1296 | } else { |
---|
1297 | $diemessage = basename($sourcefile).' depends on '.$filename.', which is missing'; |
---|
1298 | } |
---|
1299 | if ($DieOnFailure) { |
---|
1300 | die($diemessage); |
---|
1301 | } else { |
---|
1302 | $GETID3_ERRORARRAY[] = $diemessage; |
---|
1303 | } |
---|
1304 | return false; |
---|
1305 | } |
---|
1306 | |
---|
1307 | } |
---|
1308 | |
---|
1309 | ?> |
---|