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 | // See readme.txt for more details // |
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8 | ///////////////////////////////////////////////////////////////// |
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9 | // // |
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10 | // write.id3v1.php // |
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11 | // module for writing ID3v1 tags // |
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12 | // dependencies: module.tag.id3v1.php // |
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13 | // /// |
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14 | ///////////////////////////////////////////////////////////////// |
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15 | |
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16 | getid3_lib::IncludeDependency(GETID3_INCLUDEPATH.'module.tag.id3v1.php', __FILE__, true); |
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17 | |
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18 | class getid3_write_id3v1 |
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19 | { |
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20 | var $filename; |
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21 | var $tag_data; |
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22 | var $warnings = array(); // any non-critical errors will be stored here |
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23 | var $errors = array(); // any critical errors will be stored here |
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24 | |
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25 | function getid3_write_id3v1() { |
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26 | return true; |
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27 | } |
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28 | |
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29 | function WriteID3v1() { |
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30 | if ((filesize($this->filename) >= (pow(2, 31) - 128)) || (filesize($this->filename) < 0)) { |
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31 | $this->errors[] = 'Unable to write ID3v1 because file is larger than 2GB'; |
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32 | return false; |
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33 | } |
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34 | |
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35 | // File MUST be writeable - CHMOD(646) at least |
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36 | if (is_writeable($this->filename)) { |
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37 | if ($fp_source = @fopen($this->filename, 'r+b')) { |
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38 | |
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39 | fseek($fp_source, -128, SEEK_END); |
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40 | if (fread($fp_source, 3) == 'TAG') { |
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41 | fseek($fp_source, -128, SEEK_END); // overwrite existing ID3v1 tag |
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42 | } else { |
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43 | fseek($fp_source, 0, SEEK_END); // append new ID3v1 tag |
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44 | } |
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45 | $this->tag_data['track'] = (isset($this->tag_data['track']) ? $this->tag_data['track'] : (isset($this->tag_data['track_number']) ? $this->tag_data['track_number'] : (isset($this->tag_data['tracknumber']) ? $this->tag_data['tracknumber'] : ''))); |
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46 | |
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47 | $new_id3v1_tag_data = getid3_id3v1::GenerateID3v1Tag( |
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48 | @$this->tag_data['title'], |
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49 | @$this->tag_data['artist'], |
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50 | @$this->tag_data['album'], |
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51 | @$this->tag_data['year'], |
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52 | @$this->tag_data['genreid'], |
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53 | @$this->tag_data['comment'], |
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54 | @$this->tag_data['track']); |
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55 | fwrite($fp_source, $new_id3v1_tag_data, 128); |
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56 | fclose($fp_source); |
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57 | return true; |
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58 | |
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59 | } else { |
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60 | $this->errors[] = 'Could not open '.$this->filename.' mode "r+b"'; |
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61 | return false; |
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62 | } |
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63 | } |
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64 | $this->errors[] = 'File is not writeable: '.$this->filename; |
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65 | return false; |
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66 | } |
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67 | |
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68 | function FixID3v1Padding() { |
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69 | // ID3v1 data is supposed to be padded with NULL characters, but some taggers incorrectly use spaces |
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70 | // This function rewrites the ID3v1 tag with correct padding |
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71 | |
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72 | // Initialize getID3 engine |
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73 | $getID3 = new getID3; |
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74 | $ThisFileInfo = $getID3->analyze($this->filename); |
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75 | if ($ThisFileInfo['filesize'] >= (pow(2, 31) - 128)) { |
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76 | // cannot write tags on files > 2GB |
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77 | return false; |
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78 | } |
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79 | if (isset($ThisFileInfo['tags']['id3v1'])) { |
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80 | foreach ($ThisFileInfo['tags']['id3v1'] as $key => $value) { |
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81 | $id3v1data[$key] = implode(',', $value); |
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82 | } |
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83 | $this->tag_data = $id3v1data; |
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84 | return $this->WriteID3v1(); |
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85 | } |
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86 | return false; |
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87 | } |
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88 | |
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89 | function RemoveID3v1() { |
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90 | if ($ThisFileInfo['filesize'] >= pow(2, 31)) { |
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91 | $this->errors[] = 'Unable to write ID3v1 because file is larger than 2GB'; |
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92 | return false; |
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93 | } |
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94 | |
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95 | // File MUST be writeable - CHMOD(646) at least |
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96 | if (is_writeable($this->filename)) { |
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97 | if ($fp_source = @fopen($this->filename, 'r+b')) { |
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98 | |
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99 | fseek($fp_source, -128, SEEK_END); |
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100 | if (fread($fp_source, 3) == 'TAG') { |
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101 | ftruncate($fp_source, filesize($this->filename) - 128); |
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102 | } else { |
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103 | // no ID3v1 tag to begin with - do nothing |
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104 | } |
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105 | fclose($fp_source); |
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106 | return true; |
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107 | |
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108 | } else { |
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109 | $this->errors[] = 'Could not open '.$this->filename.' mode "r+b"'; |
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110 | } |
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111 | } else { |
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112 | $this->errors[] = $this->filename.' is not writeable'; |
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113 | } |
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114 | return false; |
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115 | } |
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116 | |
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117 | } |
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118 | |
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119 | ?> |
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