1 | <?php
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2 |
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3 | /**
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4 | * This class manage upload, with use of the JUpload applet. It's both a sample to show how to use the applet, and
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5 | * a class you can use directly into your own application.
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6 | *
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7 | * Recommandation: Don't update its code !
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8 | *
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9 | * By doing this, you'll be able to reuse directly any update coming from the JUpload project, instead of reporting your
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10 | * modifications into any new version of this class. This guarantees you that your project can use the last version of
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11 | * JUpload, without any code modification. We work so that the applet behavior remains unchanged, but from time to time,
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12 | * a change can appear.
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13 | *
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14 | * Sample:
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15 | * - See the index.php samples, in the same folder.
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16 | *
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17 | * Notes:
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18 | * - maxChunkSize: this class use a default maxChunkSize of 500K (or less, depending on the script max size). This allows
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19 | * upload of FILES OF ANY SIZE on quite all ISP hosting. If it's too big for you (the max upload size of your ISP is less
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20 | * than 500K), or if you want no chunk at all, you can, of course, override this default value.
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21 | *
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22 | *
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23 | *
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24 | * Parameters:
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25 | * - $appletparams contains a map for applet parameters: key is the applet parameter name. The value is the value to transmit
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26 | * to the applet. See the applet documentation for information on all applet parameters.
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27 | * - $classparams contains the parameter specific for the JUpload class below. Here are the main class parameters:
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28 | * - demo_mode. Files are uploaded to the server, but not stored on its hard drive. That is: you can simulate the global
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29 | * behavior, but won't consume hard drive space. This mode is used on sourceforge web site.
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30 | *
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31 | *
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32 | * Output generated for uploaded files:
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33 | * - $files is an array of array. This can be managed by (a) the function given in the callbackAfterUploadManagement class
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34 | * parameter, or (b) within the page whose URL is given in the afterUploadURL applet parameter, or (c) you can Extend the
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35 | * class and redeclare defaultAfterUploadManagement() to your needs.
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36 | * See the defaultAfterUploadManagement() for a sample on howto manage this array.
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37 | *
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38 | * This array contains:
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39 | * - One entry per file. Each entry is an array, that contains all files properties, stored as $key=>$value.
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40 | * The available keys are:
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41 | * - name: the filename, as it is now stored on the system.
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42 | * - size: the file size
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43 | * - path: the absolute path, where the file has been stored.
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44 | * - fullName: the canonical file name (i.e. including the absolute path)
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45 | * - md5sum: the md5sum of the file, if further control is needed.
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46 | * - mimetype: the calculated mime type of the file
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47 | * - If the formData applet parameter is used: all attributes (key and value) uploaded by the applet, are put here,
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48 | * repeated for each file.
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49 | *
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50 | * Note: if you are using a callback function (i.e. callbackAfterUploadManagement) and you do not see a global 'object' you
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51 | * are expecting then it might have been destroyed by PHP - c.f. http://bugs.php.net/bug.php?id=39693
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52 | *
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53 | */
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54 | class JUpload {
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55 |
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56 | var $appletparams;
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57 | var $classparams;
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58 | var $files;
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59 |
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60 | public function JUpload($appletparams = array(), $classparams = array()) {
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61 | if (gettype($classparams) != 'array')
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62 | $this->abort('Invalid type of parameter classparams: Expecting an array');
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63 | if (gettype($appletparams) != 'array')
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64 | $this->abort('Invalid type of parameter appletparams: Expecting an array');
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65 |
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66 | // set some defaults for the applet params
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67 | if (!isset($appletparams['afterUploadURL']))
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68 | $appletparams['afterUploadURL'] = $_SERVER['PHP_SELF'] . '?afterupload=1';
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69 | if (!isset($appletparams['name']))
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70 | $appletparams['name'] = 'JUpload';
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71 | if (!isset($appletparams['archive']))
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72 | $appletparams['archive'] = 'wjhk.jupload.jar';
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73 | if (!isset($appletparams['code']))
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74 | $appletparams['code'] = 'wjhk.jupload2.JUploadApplet';
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75 | if (!isset($appletparams['debugLevel']))
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76 | $appletparams['debugLevel'] = 0;
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77 | if (!isset($appletparams['httpUploadParameterType']))
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78 | $appletparams['httpUploadParameterType'] = 'array';
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79 | if (!isset($appletparams['showLogWindow']))
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80 | $appletparams['showLogWindow'] = ($appletparams['debugLevel'] > 0) ? 'true' : 'false';
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81 | if (!isset($appletparams['width']))
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82 | $appletparams['width'] = 500;
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83 | if (!isset($appletparams['height']))
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84 | $appletparams['height'] = ($appletparams['showLogWindow'] == 'true') ? 500 : 300;
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85 | if (!isset($appletparams['mayscript']))
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86 | $appletparams['mayscript'] = 'true';
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87 | if (!isset($appletparams['scriptable']))
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88 | $appletparams['scriptable'] = 'false';
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89 | //if (!isset($appletparams['stringUploadSuccess']))
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90 | $appletparams['stringUploadSuccess'] = 'SUCCESS';
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91 | //if (!isset($appletparams['stringUploadError']))
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92 | $appletparams['stringUploadError'] = 'ERROR: (.*)';
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93 | $maxpost = $this->tobytes(ini_get('post_max_size'));
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94 | $maxmem = $this->tobytes(ini_get('memory_limit'));
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95 | $maxfs = $this->tobytes(ini_get('upload_max_filesize'));
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96 | $obd = ini_get('open_basedir');
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97 | if (!isset($appletparams['maxChunkSize'])) {
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98 | $maxchunk = ($maxpost < $maxmem) ? $maxpost : $maxmem;
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99 | $maxchunk = ($maxchunk < $maxfs) ? $maxchunk : $maxfs;
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100 | $maxchunk /= 4;
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101 | $optchunk = (500000 > $maxchunk) ? $maxchunk : 500000;
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102 | $appletparams['maxChunkSize'] = $optchunk;
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103 | }
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104 | $appletparams['maxChunkSize'] = $this->tobytes($appletparams['maxChunkSize']);
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105 | if (!isset($appletparams['maxFileSize']))
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106 | $appletparams['maxFileSize'] = $maxfs;
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107 | $appletparams['maxFileSize'] = $this->tobytes($appletparams['maxFileSize']);
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108 | if (isset($classparams['errormail'])) {
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109 | $appletparams['urlToSendErrorTo'] = $_SERVER["PHP_SELF"] . '?errormail';
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110 | }
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111 |
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112 | // Same for class parameters
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113 | if (!isset($classparams['demo_mode']))
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114 | $classparams['demo_mode'] = false;
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115 | if ($classparams['demo_mode']) {
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116 | $classparams['create_destdir'] = false;
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117 | $classparams['allow_subdirs'] = true;
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118 | $classparams['allow_zerosized'] = true;
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119 | $classparams['duplicate'] = 'overwrite';
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120 | }
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121 | if (!isset($classparams['debug_php'])) // set true to log some messages in PHP log
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122 | $classparams['debug_php'] = false;
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123 | if (!isset($this->classparams['allowed_mime_types'])) // array of allowed MIME type
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124 | $classparams['allowed_mime_types'] = 'all';
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125 | if (!isset($this->classparams['allowed_file_extensions'])) // array of allowed file extensions
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126 | $classparams['allowed_file_extensions'] = 'all';
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127 | if (!isset($classparams['verbose_errors'])) // shouldn't display server info on a production site!
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128 | $classparams['verbose_errors'] = true;
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129 | if (!isset($classparams['session_regenerate']))
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130 | $classparams['session_regenerate'] = false;
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131 | if (!isset($classparams['create_destdir']))
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132 | $classparams['create_destdir'] = true;
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133 | if (!isset($classparams['allow_subdirs']))
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134 | $classparams['allow_subdirs'] = false;
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135 | if (!isset($classparams['spaces_in_subdirs']))
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136 | $classparams['spaces_in_subdirs'] = false;
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137 | if (!isset($classparams['allow_zerosized']))
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138 | $classparams['allow_zerosized'] = false;
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139 | if (!isset($classparams['duplicate']))
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140 | $classparams['duplicate'] = 'rename';
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141 | if (!isset($classparams['dirperm']))
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142 | $classparams['dirperm'] = 0755;
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143 | if (!isset($classparams['fileperm']))
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144 | $classparams['fileperm'] = 0644;
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145 | if (!isset($classparams['destdir'])) {
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146 | if ($obd != '')
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147 | $classparams['destdir'] = $obd;
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148 | else
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149 | $classparams['destdir'] = '/var/tmp/jupload_test';
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150 | }
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151 | if ($classparams['create_destdir'])
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152 | @mkdir($classparams['destdir'], $classparams['dirperm']);
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153 | if (!is_dir($classparams['destdir']) && is_writable($classparams['destdir']))
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154 | $this->abort('Destination dir not accessible');
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155 | if (!isset($classparams['tmp_prefix']))
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156 | $classparams['tmp_prefix'] = 'jutmp.';
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157 | if (!isset($classparams['var_prefix']))
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158 | $classparams['var_prefix'] = 'juvar.';
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159 | if (!isset($classparams['jscript_wrapper']))
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160 | $classparams['jscript_wrapper'] = 'JUploadSetProperty';
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161 | if (!isset($classparams['tag_jscript']))
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162 | $classparams['tag_jscript'] = '<!--JUPLOAD_JSCRIPT-->';
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163 | if (!isset($classparams['tag_applet']))
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164 | $classparams['tag_applet'] = '<!--JUPLOAD_APPLET-->';
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165 | if (!isset($classparams['tag_flist']))
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166 | $classparams['tag_flist'] = '<!--JUPLOAD_FILES-->';
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167 | if (!isset($classparams['http_flist_start']))
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168 | $classparams['http_flist_start'] =
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169 | "<table border='1'><TR><TH>Filename</TH><TH>file size</TH><TH>Relative path</TH><TH>Full name</TH><TH>md5sum</TH><TH>Specific parameters</TH></TR>";
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170 | if (!isset($classparams['http_flist_end']))
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171 | $classparams['http_flist_end'] = "</table>\n";
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172 | if (!isset($classparams['http_flist_file_before']))
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173 | $classparams['http_flist_file_before'] = "<tr><td>";
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174 | if (!isset($classparams['http_flist_file_between']))
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175 | $classparams['http_flist_file_between'] = "</td><td>";
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176 | if (!isset($classparams['http_flist_file_after']))
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177 | $classparams['http_flist_file_after'] = "</td></tr>\n";
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178 |
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179 | $this->appletparams = $appletparams;
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180 | $this->classparams = $classparams;
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181 | $this->page_start();
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182 | }
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183 |
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184 | /**
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185 | * Log a message on the current output, as a HTML comment.
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186 | */
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187 | protected function logDebug($function, $msg, $htmlComment=true)
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188 | {
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189 | $output = "[DEBUG] [$function] $msg";
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190 | if ($htmlComment) {
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191 | echo("<!-- $output -->\r\n");
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192 | } else {
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193 | echo("$output\r\n");
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194 | }
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195 | }
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196 |
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197 | /**
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198 | * Log a message to the PHP log.
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199 | * Declared "protected" so it may be Extended if you require customised logging (e.g. particular log file location).
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200 | */
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201 | protected function logPHPDebug($function, $msg)
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202 | {
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203 | if ($this->classparams['debug_php'] === true) {
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204 | $output = "[DEBUG] [$function] " . $this->arrayexpand($msg);
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205 | error_log($output);
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206 | }
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207 | }
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208 |
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209 | private function arrayexpand($array)
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210 | {
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211 | $output = '';
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212 | if (is_array($array)) {
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213 | foreach ($array as $key => $value) {
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214 | $output .= "\n " . $key . ' => ' . $this->arrayexpand($value);
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215 | }
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216 | } else {
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217 | $output .= $array;
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218 | }
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219 | return $output;
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220 | }
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221 |
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222 | /**
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223 | * Convert a value ending in 'G','M' or 'K' to bytes
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224 | *
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225 | */
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226 | private function tobytes($val)
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227 | {
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228 | $val = trim($val);
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229 | $last = strtolower($val{strlen($val) - 1});
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230 | switch ($last) {
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231 | case 'g':
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232 | $val *= 1024;
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233 | case 'm':
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234 | $val *= 1024;
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235 | case 'k':
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236 | $val *= 1024;
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237 | }
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238 | return $val;
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239 | }
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240 |
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241 | /**
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242 | * Build a string, containing a javascript wrapper function
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243 | * for setting applet properties via JavaScript. This is necessary,
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244 | * because we use the "modern" method of including the applet (using
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245 | * <object> resp. <embed> tags) in order to trigger automatic JRE downloading.
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246 | * Therefore, in Netscape-like browsers, the applet is accessible via
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247 | * the document.embeds[] array while in others, it is accessible via the
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248 | * document.applets[] array.
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249 | *
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250 | * @return A string, containing the necessary wrapper function (named JUploadSetProperty)
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251 | */
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252 | private function str_jsinit()
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253 | {
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254 | $N = "\n";
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255 | $name = $this->appletparams['name'];
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256 | $ret = '<script type="text/javascript">' . $N;
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257 | $ret .= '<!--' . $N;
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258 | $ret .= 'function ' . $this->classparams['jscript_wrapper'] . '(name, value) {' . $N;
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259 | $ret .= ' document.applets["' . $name . '"] == null || document.applets["' . $name . '"].setProperty(name,value);' . $N;
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260 | $ret .= ' document.embeds["' . $name . '"] == null || document.embeds["' . $name . '"].setProperty(name,value);' . $N;
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261 | $ret .= '}' . $N;
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262 | $ret .= '//-->' . $N;
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263 | $ret .= '</script>';
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264 | return $ret;
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265 | }
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266 |
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267 | /**
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268 | * Build a string, containing the applet tag with all parameters.
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269 | *
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270 | * @return A string, containing the applet tag
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271 | */
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272 | private function str_applet() {
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273 | $N = "\n";
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274 | $params = $this->appletparams;
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275 | // return the actual applet tag
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276 | $ret = '<object classid = "clsid:8AD9C840-044E-11D1-B3E9-00805F499D93"' . $N;
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277 | $ret .= ' codebase = "http://java.sun.com/update/1.5.0/jinstall-1_5-windows-i586.cab#Version=5,0,0,3"' . $N;
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278 | $ret .= ' width = "' . $params['width'] . '"' . $N;
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279 | $ret .= ' height = "' . $params['height'] . '"' . $N;
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280 | $ret .= ' name = "' . $params['name'] . '">' . $N;
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281 | foreach ($params as $key => $val) {
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282 | if ($key != 'width' && $key != 'height')
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283 | $ret .= ' <param name = "' . $key . '" value = "' . $val . '" />' . $N;
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284 | }
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285 | $ret .= ' <comment>' . $N;
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286 | $ret .= ' <embed' . $N;
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287 | $ret .= ' type = "application/x-java-applet;version=1.5"' . $N;
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288 | foreach ($params as $key => $val)
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289 | $ret .= ' ' . $key . ' = "' . $val . '"' . $N;
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290 | $ret .= ' pluginspage = "http://java.sun.com/products/plugin/index.html#download">' . $N;
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291 | $ret .= ' <noembed>' . $N;
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292 | $ret .= ' Java 1.5 or higher plugin required.' . $N;
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293 | $ret .= ' </noembed>' . $N;
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294 | $ret .= ' </embed>' . $N;
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295 | $ret .= ' </comment>' . $N;
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296 | $ret .= '</object>';
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297 | return $ret;
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298 | }
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299 |
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300 | private function abort($msg = '')
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301 | {
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302 | $this->cleanup();
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303 | if ($msg != '')
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304 | die(str_replace('(.*)', $msg, $this->appletparams['stringUploadError']) . "\n");
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305 | exit;
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306 | }
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307 |
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308 | private function warning($msg = '')
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309 | {
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310 | $this->cleanup();
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311 | if ($msg != '')
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312 | echo('WARNING: ' . $msg . "\n");
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313 | echo $this->appletparams['stringUploadSuccess'] . "\n";
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314 | exit;
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315 | }
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316 |
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317 | private function cleanup()
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318 | {
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319 | // remove all uploaded files of *this* request
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320 | if (isset($_FILES)) {
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321 | foreach ($_FILES as $key => $val)
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322 | @unlink($val['tmp_name']);
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323 | }
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324 | // remove accumulated file, if any.
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325 | @unlink($this->classparams['destdir'] . '/' . $this->classparams['tmp_prefix'] . session_id());
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326 | @unlink($this->classparams['destdir'] . '/' . $this->classparams['tmp_prefix'] . 'tmp' . session_id());
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327 | // reset session var
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328 | $_SESSION[$this->classparams['var_prefix'] . 'size'] = 0;
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329 | return;
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330 | }
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331 |
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332 | private function mkdirp($path)
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333 | {
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334 | // create subdir (hierary) below destdir;
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335 | $dirs = explode('/', $path);
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336 | $path = $this->classparams['destdir'];
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337 | foreach ($dirs as $dir)
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338 | {
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339 | $path .= '/' . $dir;
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340 | if (!file_exists($path)) { // @ does NOT always supress the error!
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341 | @mkdir($path, $this->classparams['dirperm']);
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342 | }
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343 | }
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344 | if (!is_dir($path) && is_writable($path))
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345 | $this->abort('Destination dir not accessible');
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346 | }
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347 |
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348 | /**
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349 | * This method:
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350 | * - Replaces some potentially dangerous characters by '_' (in the given name an relative path)
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351 | * - Checks if a files of the same name already exists.
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352 | * - If no: no problem.
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353 | * - If yes, and the duplicate class param is set to rename, the file is renamed.
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354 | * - If yes, and the duplicate class param is set to overwrite, the file is not renamed. The existing one will be erased.
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355 | * - If yes, and the duplicate class param is set to reject, an error is thrown.
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356 | */
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357 | private function dstfinal(&$name, &$subdir)
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358 | {
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359 | $name = preg_replace('![`$\\\\/|]!', '_', $name);
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360 | if ($this->classparams['allow_subdirs'] && ($subdir != '')) {
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361 | $subdir = trim(preg_replace('!\\\\!', '/', $subdir), '/');
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362 | $subdir = preg_replace('![`$|]!', '_', $subdir);
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363 | if (!$this->classparams['spaces_in_subdirs']) {
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364 | $subdir = str_replace(' ', '_', $subdir);
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365 | }
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366 | // recursively create subdir
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367 | if (!$this->classparams['demo_mode'])
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368 | $this->mkdirp($subdir);
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369 | // append a slash
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370 | $subdir .= '/';
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371 | } else {
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372 | $subdir = '';
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373 | }
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374 | $ret = $this->classparams['destdir'] . '/' . $subdir . $name;
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375 | if (file_exists($ret)) {
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376 | if ($this->classparams['duplicate'] == 'overwrite') {
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377 | return $ret;
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378 | }
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379 | if ($this->classparams['duplicate'] == 'reject') {
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380 | $this->abort('A file with the same name already exists');
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381 | }
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382 | if ($this->classparams['duplicate'] == 'warning') {
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383 | $this->warning("File $name already exists - rejected");
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384 | }
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385 | if ($this->classparams['duplicate'] == 'rename') {
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386 | $cnt = 1;
|
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387 | $dir = $this->classparams['destdir'] . '/' . $subdir;
|
---|
388 | $ext = strrchr($name, '.');
|
---|
389 | if ($ext) {
|
---|
390 | $nameWithoutExtension = substr($name, 0, strlen($name) - strlen($ext));
|
---|
391 | } else {
|
---|
392 | $ext = '';
|
---|
393 | $nameWithoutExtension = $name;
|
---|
394 | }
|
---|
395 |
|
---|
396 | $rtry = $dir . $nameWithoutExtension . '.[' . $cnt . ']' . $ext;
|
---|
397 | while (file_exists($rtry)) {
|
---|
398 | ++$cnt;
|
---|
399 | $rtry = $dir . $nameWithoutExtension . '.[' . $cnt . ']' . $ext;
|
---|
400 | }
|
---|
401 | //We store the result name in the byReference name parameter.
|
---|
402 | $name = $nameWithoutExtension . '.[' . $cnt . ']' . $ext;
|
---|
403 | $ret = $rtry;
|
---|
404 | }
|
---|
405 | }
|
---|
406 | return $ret;
|
---|
407 | }
|
---|
408 |
|
---|
409 | /**
|
---|
410 | * Example function to process the files uploaded. This one simply displays the files' data.
|
---|
411 | *
|
---|
412 | */
|
---|
413 | public function defaultAfterUploadManagement()
|
---|
414 | {
|
---|
415 | $flist = '[defaultAfterUploadManagement] Nb uploaded files is: ' . sizeof($this->files);
|
---|
416 | $flist = $this->classparams['http_flist_start'];
|
---|
417 | foreach ($this->files as $f) {
|
---|
418 | //$f is an array, that contains all info about the uploaded file.
|
---|
419 | $this->logDebug('defaultAfterUploadManagement', " Reading file ${f['name']}");
|
---|
420 | $flist .= $this->classparams['http_flist_file_before'];
|
---|
421 | $flist .= $f['name'];
|
---|
422 | $flist .= $this->classparams['http_flist_file_between'];
|
---|
423 | $flist .= $f['size'];
|
---|
424 | $flist .= $this->classparams['http_flist_file_between'];
|
---|
425 | $flist .= $f['relativePath'];
|
---|
426 | $flist .= $this->classparams['http_flist_file_between'];
|
---|
427 | $flist .= $f['fullName'];
|
---|
428 | $flist .= $this->classparams['http_flist_file_between'];
|
---|
429 | $flist .= $f['md5sum'];
|
---|
430 | $addBR = false;
|
---|
431 | foreach ($f as $key => $value) {
|
---|
432 | //If it's a specific key, let's display it:
|
---|
433 | if ($key != 'name' && $key != 'size' && $key != 'relativePath' && $key != 'fullName' && $key != 'md5sum') {
|
---|
434 | if ($addBR) {
|
---|
435 | $flist .= "<br>";
|
---|
436 | } else {
|
---|
437 | // First line. We must add a new 'official' list separator.
|
---|
438 | $flist .= $this->classparams['http_flist_file_between'];
|
---|
439 | $addBR = true;
|
---|
440 | }
|
---|
441 | $flist .= "$key => $value";
|
---|
442 | }
|
---|
443 | }
|
---|
444 | $flist .= $this->classparams['http_flist_file_after'];
|
---|
445 | }
|
---|
446 | $flist .= $this->classparams['http_flist_end'];
|
---|
447 |
|
---|
448 | return $flist;
|
---|
449 | }
|
---|
450 |
|
---|
451 | /**
|
---|
452 | * Generation of the applet tag, and necessary things around (js content). Insertion of this into the content of the
|
---|
453 | * page.
|
---|
454 | * See the tag_jscript and tag_applet class parameters.
|
---|
455 | */
|
---|
456 | private function generateAppletTag($str)
|
---|
457 | {
|
---|
458 | $this->logDebug('generateAppletTag', 'Entering function');
|
---|
459 | $str = preg_replace('/' . $this->classparams['tag_jscript'] . '/', $this->str_jsinit(), $str);
|
---|
460 | return preg_replace('/' . $this->classparams['tag_applet'] . '/', $this->str_applet(), $str);
|
---|
461 | }
|
---|
462 |
|
---|
463 | /**
|
---|
464 | * This function is called when constructing the page, when we're not reveiving uploaded files. It 'just' construct
|
---|
465 | * the applet tag, by calling the relevant function.
|
---|
466 | *
|
---|
467 | * This *must* be public, because it is called from PHP's output buffering
|
---|
468 | */
|
---|
469 | public function interceptBeforeUpload($str)
|
---|
470 | {
|
---|
471 | $this->logDebug('interceptBeforeUpload', 'Entering function');
|
---|
472 | return $this->generateAppletTag($str);
|
---|
473 | }
|
---|
474 |
|
---|
475 | /**
|
---|
476 | * This function displays the uploaded files description in the current page (see tag_flist class parameter)
|
---|
477 | *
|
---|
478 | * This *must* be public, because it is called from PHP's output buffering.
|
---|
479 | */
|
---|
480 | public function interceptAfterUpload($str)
|
---|
481 | {
|
---|
482 | $this->logDebug('interceptAfterUpload', 'Entering function');
|
---|
483 | $this->logPHPDebug('interceptAfterUpload', $this->files);
|
---|
484 |
|
---|
485 | if (count($this->files) > 0) {
|
---|
486 | if (isset($this->classparams['callbackAfterUploadManagement'])) {
|
---|
487 | $this->logDebug('interceptAfterUpload', 'Before call of ' . $this->classparams['callbackAfterUploadManagement']);
|
---|
488 | $strForFListContent = call_user_func($this->classparams['callbackAfterUploadManagement'], $this, $this->files);
|
---|
489 | } else {
|
---|
490 | $strForFListContent = $this->defaultAfterUploadManagement();
|
---|
491 | }
|
---|
492 | $str = preg_replace('/' . $this->classparams['tag_flist'] . '/', $strForFListContent, $str);
|
---|
493 | }
|
---|
494 | return $this->generateAppletTag($str);
|
---|
495 | }
|
---|
496 |
|
---|
497 | /**
|
---|
498 | * This method manages the receiving of the debug log, when an error occurs.
|
---|
499 | */
|
---|
500 | private function receive_debug_log()
|
---|
501 | {
|
---|
502 | // handle error report
|
---|
503 | if (isset($_POST['description']) && isset($_POST['log'])) {
|
---|
504 | $msg = $_POST['log'];
|
---|
505 | mail($this->classparams['errormail'], $_POST['description'], $msg);
|
---|
506 | } else {
|
---|
507 | if (isset($_SERVER['SERVER_ADMIN']))
|
---|
508 | mail($_SERVER['SERVER_ADMIN'], 'Empty jupload error log', 'An empty log has just been posted.');
|
---|
509 | $this->logPHPDebug('receive_debug_log', 'Empty error log received');
|
---|
510 | }
|
---|
511 | exit;
|
---|
512 | }
|
---|
513 |
|
---|
514 | /**
|
---|
515 | * This method is the heart of the system. It manage the files sent by the applet, check the incoming parameters (md5sum) and
|
---|
516 | * reconstruct the files sent in chunk mode.
|
---|
517 | *
|
---|
518 | * The result is stored in the $files array, and can then be managed by the function given in the callbackAfterUploadManagement
|
---|
519 | * class parameter, or within the page whose URL is given in the afterUploadURL applet parameter.
|
---|
520 | * Or you can Extend the class and redeclare defaultAfterUploadManagement() to your needs.
|
---|
521 | */
|
---|
522 | private function receive_uploaded_files()
|
---|
523 | {
|
---|
524 | $this->logDebug('receive_uploaded_files', 'Entering POST management');
|
---|
525 |
|
---|
526 | if (session_id() == '') {
|
---|
527 | include_once('../../header.session.inc.php');
|
---|
528 | }
|
---|
529 | // we check for the session *after* handling possible error log
|
---|
530 | // because an error could have happened because the session-id is missing.
|
---|
531 | if (!isset($_SESSION[$this->classparams['var_prefix'] . 'size'])) {
|
---|
532 | $this->abort('Invalid session (in afterupload, POST, check of size)');
|
---|
533 | }
|
---|
534 | if (!isset($_SESSION[$this->classparams['var_prefix'] . 'files'])) {
|
---|
535 | $this->abort('Invalid session (in afterupload, POST, check of files)');
|
---|
536 | }
|
---|
537 | $this->files = $_SESSION[$this->classparams['var_prefix'] . 'files'];
|
---|
538 | if (!is_array($this->files)) {
|
---|
539 | $this->abort('Invalid session (in afterupload, POST, is_array(files))');
|
---|
540 | }
|
---|
541 | if ($this->appletParameters['sendMD5Sum'] && !isset($_POST['md5sum'])) {
|
---|
542 | $this->abort('Required POST variable md5sum is missing');
|
---|
543 | }
|
---|
544 | $cnt = 0;
|
---|
545 | foreach ($_FILES as $key => $value) {
|
---|
546 | //Let's read the $_FILES data
|
---|
547 | if (isset($files_data)) {
|
---|
548 | unset($files_data);
|
---|
549 | }
|
---|
550 | $jupart = (isset($_POST['jupart'])) ? (int) $_POST['jupart'] : 0;
|
---|
551 | $jufinal = (isset($_POST['jufinal'])) ? (int) $_POST['jufinal'] : 1;
|
---|
552 | $relpaths = (isset($_POST['relpathinfo'])) ? $_POST['relpathinfo'] : null;
|
---|
553 | $md5sums = (isset($_POST['md5sum'])) ? $_POST['md5sum'] : null;
|
---|
554 | $mimetypes = (isset($_POST['mimetype'])) ? $_POST['mimetype'] : null;
|
---|
555 | //$relpaths = (isset($_POST["relpathinfo$cnt"])) ? $_POST["relpathinfo$cnt"] : null;
|
---|
556 | //$md5sums = (isset($_POST["md5sum$cnt"])) ? $_POST["md5sum$cnt"] : null;
|
---|
557 |
|
---|
558 | if (gettype($relpaths) == 'string') {
|
---|
559 | $relpaths = array($relpaths);
|
---|
560 | }
|
---|
561 | if (gettype($md5sums) == 'string') {
|
---|
562 | $md5sums = array($md5sums);
|
---|
563 | }
|
---|
564 | if ($this->appletParameters['sendMD5Sum'] && !is_array($md5sums)) {
|
---|
565 | $this->abort('Expecting an array of MD5 checksums');
|
---|
566 | }
|
---|
567 | if (!is_array($relpaths)) {
|
---|
568 | $this->abort('Expecting an array of relative paths');
|
---|
569 | }
|
---|
570 | if (!is_array($mimetypes)) {
|
---|
571 | $this->abort('Expecting an array of MIME types');
|
---|
572 | }
|
---|
573 | // Check the MIME type (note: this is easily forged!)
|
---|
574 | if (isset($this->classparams['allowed_mime_types']) && is_array($this->classparams['allowed_mime_types'])) {
|
---|
575 | if (!in_array($mimetypes[$cnt], $this->classparams['allowed_mime_types'])) {
|
---|
576 | $this->abort('MIME type ' . $mimetypes[$cnt] . ' not allowed');
|
---|
577 | }
|
---|
578 | }
|
---|
579 | if (isset($this->classparams['allowed_file_extensions']) && is_array($this->classparams['allowed_file_extensions'])) {
|
---|
580 | $fileExtension = substr(strrchr($value['name'][$cnt], "."), 1);
|
---|
581 | if (!in_array($fileExtension, $this->classparams['allowed_file_extensions'])) {
|
---|
582 | $this->abort('File extension ' . $fileExtension . ' not allowed');
|
---|
583 | }
|
---|
584 | }
|
---|
585 |
|
---|
586 | $dstdir = $this->classparams['destdir'];
|
---|
587 | $dstname = $dstdir . '/' . $this->classparams['tmp_prefix'] . session_id();
|
---|
588 | $tmpname = $dstdir . '/' . $this->classparams['tmp_prefix'] . 'tmp' . session_id();
|
---|
589 |
|
---|
590 | // Controls are now done. Let's store the current uploaded files properties in an array, for future use.
|
---|
591 | $files_data['name'] = $value['name'][$cnt];
|
---|
592 | $files_data['size'] = 'not calculated yet';
|
---|
593 | $files_data['tmp_name'] = $value['tmp_name'][$cnt];
|
---|
594 | $files_data['error'] = $value['error'][$cnt];
|
---|
595 | $files_data['relativePath'] = $relpaths[$cnt];
|
---|
596 | $files_data['md5sum'] = $md5sums[$cnt];
|
---|
597 | $files_data['mimetype'] = $mimetypes[$cnt];
|
---|
598 |
|
---|
599 | if (!move_uploaded_file($files_data['tmp_name'], $tmpname)) {
|
---|
600 | if ($classparams['verbose_errors']) {
|
---|
601 | $this->abort("Unable to move uploaded file (from ${files_data['tmp_name']} to $tmpname)");
|
---|
602 | } else {
|
---|
603 | trigger_error("Unable to move uploaded file (from ${files_data['tmp_name']} to $tmpname)", E_USER_WARNING);
|
---|
604 | $this->abort("Unable to move uploaded file");
|
---|
605 | }
|
---|
606 | }
|
---|
607 |
|
---|
608 | // In demo mode, no file storing is done. We just delete the newly uploaded file.
|
---|
609 | if ($this->classparams['demo_mode']) {
|
---|
610 | if ($jufinal || (!$jupart)) {
|
---|
611 | if ($jupart) {
|
---|
612 | $files_data['size'] = ($jupart - 1) * $this->appletparams['maxChunkSize'] + filesize($tmpname);
|
---|
613 | } else {
|
---|
614 | $files_data['size'] = filesize($tmpname);
|
---|
615 | }
|
---|
616 | $files_data['fullName'] = 'Demo mode<BR>No file storing';
|
---|
617 | array_push($this->files, $files_data);
|
---|
618 | }
|
---|
619 | unlink($tmpname);
|
---|
620 | ++$cnt;
|
---|
621 | continue;
|
---|
622 | }
|
---|
623 | //If we get here, the upload is a real one (no demo)
|
---|
624 | if ($jupart) {
|
---|
625 | // got a chunk of a multi-part upload
|
---|
626 | $len = filesize($tmpname);
|
---|
627 | $_SESSION[$this->classparams['var_prefix'] . 'size'] += $len;
|
---|
628 | if ($len > 0) {
|
---|
629 | $src = fopen($tmpname, 'rb');
|
---|
630 | $dst = fopen($dstname, ($jupart == 1) ? 'wb' : 'ab');
|
---|
631 | while ($len > 0) {
|
---|
632 | $rlen = ($len > 8192) ? 8192 : $len;
|
---|
633 | $buf = fread($src, $rlen);
|
---|
634 | if (!$buf) {
|
---|
635 | fclose($src);
|
---|
636 | fclose($dst);
|
---|
637 | unlink($dstname);
|
---|
638 | $this->abort('read IO error');
|
---|
639 | }
|
---|
640 | if (!fwrite($dst, $buf, $rlen)) {
|
---|
641 | fclose($src);
|
---|
642 | fclose($dst);
|
---|
643 | unlink($dstname);
|
---|
644 | $this->abort('write IO error');
|
---|
645 | }
|
---|
646 | $len -= $rlen;
|
---|
647 | }
|
---|
648 | fclose($src);
|
---|
649 | fclose($dst);
|
---|
650 | unlink($tmpname);
|
---|
651 | }
|
---|
652 | if ($jufinal) {
|
---|
653 | // This is the last chunk. Check total lenght and
|
---|
654 | // rename it to it's final name.
|
---|
655 | $dlen = filesize($dstname);
|
---|
656 | if ($dlen != $_SESSION[$this->classparams['var_prefix'] . 'size'])
|
---|
657 | $this->abort('file size mismatch');
|
---|
658 | if ($this->appletParameters['sendMD5Sum']) {
|
---|
659 | if ($md5sums[$cnt] != md5_file($dstname))
|
---|
660 | $this->abort('MD5 checksum mismatch');
|
---|
661 | }
|
---|
662 | // remove zero sized files
|
---|
663 | if (($dlen > 0) || $this->classparams['allow_zerosized']) {
|
---|
664 | $dstfinal = $this->dstfinal($files_data['name'], $files_data['relativePath']);
|
---|
665 | if (!rename($dstname, $dstfinal))
|
---|
666 | $this->abort('rename IO error');
|
---|
667 | if (!chmod($dstfinal, $this->classparams['fileperm']))
|
---|
668 | $this->abort('chmod IO error');
|
---|
669 | $files_data['size'] = filesize($dstfinal);
|
---|
670 | $files_data['fullName'] = $dstfinal;
|
---|
671 | $files_data['path'] = dirname($dstfinal);
|
---|
672 | array_push($this->files, $files_data);
|
---|
673 | } else {
|
---|
674 | unlink($dstname);
|
---|
675 | }
|
---|
676 | // reset session var
|
---|
677 | $_SESSION[$this->classparams['var_prefix'] . 'size'] = 0;
|
---|
678 | }
|
---|
679 | } else {
|
---|
680 | // Got a single file upload. Trivial.
|
---|
681 | if ($md5sums[$cnt] != md5_file($tmpname))
|
---|
682 | $this->abort('MD5 checksum mismatch');
|
---|
683 | $dstfinal = $this->dstfinal($files_data['name'], $files_data['relativePath']);
|
---|
684 | if (!rename($tmpname, $dstfinal))
|
---|
685 | $this->abort('rename IO error');
|
---|
686 | if (!chmod($dstfinal, $this->classparams['fileperm']))
|
---|
687 | $this->abort('chmod IO error');
|
---|
688 | $files_data['size'] = filesize($dstfinal);
|
---|
689 | $files_data['fullName'] = $dstfinal;
|
---|
690 | $files_data['path'] = dirname($dstfinal);
|
---|
691 | array_push($this->files, $files_data);
|
---|
692 | }
|
---|
693 | ++$cnt;
|
---|
694 | }
|
---|
695 |
|
---|
696 | echo $this->appletparams['stringUploadSuccess'] . "\n";
|
---|
697 | $_SESSION[$this->classparams['var_prefix'] . 'files'] = $this->files;
|
---|
698 | session_write_close();
|
---|
699 | exit;
|
---|
700 | }
|
---|
701 |
|
---|
702 | /**
|
---|
703 | *
|
---|
704 | *
|
---|
705 | */
|
---|
706 | private function page_start() {
|
---|
707 | $this->logDebug('page_start', 'Entering function');
|
---|
708 |
|
---|
709 | // If the applet checks for the serverProtocol, it issues a HEAD request
|
---|
710 | // -> Simply return an empty doc.
|
---|
711 | if ($_SERVER['REQUEST_METHOD'] == 'HEAD') {
|
---|
712 | // Nothing to do
|
---|
713 | } else if ($_SERVER['REQUEST_METHOD'] == 'GET') {
|
---|
714 | // A GET request means: return upload page
|
---|
715 | $this->logDebug('page_start', 'Entering GET management');
|
---|
716 |
|
---|
717 | if (session_id() == '') {
|
---|
718 | include_once('../../header.session.inc.php');
|
---|
719 | }
|
---|
720 | if (isset($_GET['afterupload'])) {
|
---|
721 | $this->logDebug('page_start', 'afterupload is set');
|
---|
722 | if (!isset($_SESSION[$this->classparams['var_prefix'] . 'files'])) {
|
---|
723 | $this->abort('Invalid session (in afterupload, GET, check of $_SESSION): files array is not set');
|
---|
724 | }
|
---|
725 | $this->files = $_SESSION[$this->classparams['var_prefix'] . 'files'];
|
---|
726 | if (!is_array($this->files)) {
|
---|
727 | $this->abort('Invalid session (in afterupload, GET, check of is_array(files)): files is not an array');
|
---|
728 | }
|
---|
729 | // clear session data ready for new upload
|
---|
730 | $_SESSION[$this->classparams['var_prefix'] . 'files'] = array();
|
---|
731 |
|
---|
732 | // start intercepting the content of the calling page, to display the upload result.
|
---|
733 | ob_start(array(& $this, 'interceptAfterUpload'));
|
---|
734 | } else {
|
---|
735 | $this->logDebug('page_start', 'afterupload is not set');
|
---|
736 | if ($this->classparams['session_regenerate']) {
|
---|
737 | session_regenerate_id(true);
|
---|
738 | }
|
---|
739 | $this->files = array();
|
---|
740 | $_SESSION[$this->classparams['var_prefix'] . 'size'] = 0;
|
---|
741 | $_SESSION[$this->classparams['var_prefix'] . 'files'] = $this->files;
|
---|
742 | // start intercepting the content of the calling page, to display the applet tag.
|
---|
743 | ob_start(array(& $this, 'interceptBeforeUpload'));
|
---|
744 | }
|
---|
745 | } else if ($_SERVER['REQUEST_METHOD'] == 'POST') {
|
---|
746 | // If we got a POST request, this is the real work.
|
---|
747 | if (isset($_GET['errormail'])) {
|
---|
748 | //Hum, an error occurs on server side. Let's manage the debug log, that we just received.
|
---|
749 | $this->receive_debug_log();
|
---|
750 | } else {
|
---|
751 | $this->receive_uploaded_files();
|
---|
752 | }
|
---|
753 | }
|
---|
754 | }
|
---|
755 |
|
---|
756 | }
|
---|
757 |
|
---|
758 | // PHP end tag omitted intentionally!! |
---|