[1] | 1 | <?php |
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| 2 | /** |
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[136] | 3 | * PEdit.inc.php |
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| 4 | * code by strangecode :: www.strangecode.com :: this document contains copyrighted information |
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| 5 | * |
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| 6 | * PEdit provides a mechanism to store text in php variables |
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[42] | 7 | * which will be printed to the client browser under normal |
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[1] | 8 | * circumstances, but an authenticated user can 'edit' the document-- |
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[334] | 9 | * data stored in vars will be shown in html form elements to be edited |
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[92] | 10 | * and saved. Posted data is stored in XML format in a specified data dir. |
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| 11 | * A copy of the previous version is saved with the unix |
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[1] | 12 | * timestamp as part of the filename. This allows reverting to previous versions. |
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| 13 | * |
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| 14 | * To use, include this file, initialize variables, |
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| 15 | * and call printing/editing functions where you want data and forms to |
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[136] | 16 | * show up. |
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| 17 | * |
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| 18 | * @author Quinn Comendant <quinn@strangecode.com> |
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| 19 | * @concept Beau Smith <beau@beausmith.com> |
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| 20 | * @version 2.0 |
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| 21 | * |
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| 22 | * Example of use: |
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[92] | 23 | |
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| 24 | // Initialize PEdit object. |
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| 25 | require_once 'codebase/lib/PEdit.inc.php'; |
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| 26 | $pedit = new PEdit(array( |
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| 27 | 'data_dir' => COMMON_BASE . '/html/_pedit_data', |
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| 28 | 'authorized' => true, |
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| 29 | )); |
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| 30 | |
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| 31 | // Setup content data types. |
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| 32 | $pedit->set('title'); |
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| 33 | $pedit->set('content', array('type' => 'textarea')); |
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| 34 | |
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| 35 | // After setting all parameters and data, load the data. |
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| 36 | $pedit->start(); |
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| 37 | |
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| 38 | // Print content. |
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| 39 | echo $pedit->get('title'); |
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| 40 | echo $pedit->get('content'); |
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| 41 | |
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| 42 | // Print additional PEdit functionality. |
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| 43 | $pedit->formBegin(); |
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| 44 | $pedit->printAllForms(); |
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| 45 | $pedit->printVersions(); |
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| 46 | $pedit->formEnd(); |
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| 47 | |
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[1] | 48 | */ |
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[92] | 49 | class PEdit { |
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[1] | 50 | |
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[92] | 51 | // PEdit object parameters. |
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| 52 | var $_params = array( |
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| 53 | 'data_dir' => '', |
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| 54 | 'character_set' => 'utf-8', |
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| 55 | 'versions_min_qty' => 20, |
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| 56 | 'versions_min_days' => 10, |
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| 57 | ); |
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[42] | 58 | |
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[92] | 59 | var $_data = array(); // Array to store loaded data. |
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| 60 | var $_data_file = ''; // Full file path to the pedit data file. |
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| 61 | var $_authorized = false; // User is authenticated to see extended functions. |
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| 62 | var $_data_loaded = false; |
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| 63 | var $op = ''; |
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[42] | 64 | |
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| 65 | /** |
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[92] | 66 | * Constructs a new PEdit object. Initializes what file is being operated with |
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| 67 | * (PHP_SELF) and what that operation is. The two |
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[1] | 68 | * operations that actually modify data (save, restore) are treated differently |
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[92] | 69 | * than view operations (versions, view, default). They die redirect so you see |
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[1] | 70 | * the page you just modified. |
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[42] | 71 | * |
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| 72 | * @access public |
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| 73 | * @param optional array $params A hash containing connection parameters. |
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| 74 | */ |
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[92] | 75 | function PEdit($params) |
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[1] | 76 | { |
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[92] | 77 | $this->setParam($params); |
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| 78 | |
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| 79 | if ($this->getParam('authorized') === true) { |
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[1] | 80 | $this->_authorized = true; |
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| 81 | } |
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[92] | 82 | |
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| 83 | // Setup PEAR XML libraries. |
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[300] | 84 | require_once 'XML/Serializer.php'; |
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| 85 | $this->xml_serializer =& new XML_Serializer(array( |
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| 86 | XML_SERIALIZER_OPTION_INDENT => '', |
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| 87 | XML_SERIALIZER_OPTION_LINEBREAKS => '', |
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| 88 | XML_SERIALIZER_OPTION_RETURN_RESULT => true, |
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| 89 | XML_SERIALIZER_OPTION_TYPEHINTS => true, |
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| 90 | )); |
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[92] | 91 | require_once 'XML/Unserializer.php'; |
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| 92 | $this->xml_unserializer =& new XML_Unserializer(array( |
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| 93 | XML_UNSERIALIZER_OPTION_COMPLEXTYPE => 'array', |
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| 94 | )); |
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| 95 | } |
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| 96 | |
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| 97 | /** |
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| 98 | * Set (or overwrite existing) parameters by passing an array of new parameters. |
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| 99 | * |
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| 100 | * @access public |
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| 101 | * @param array $params Array of parameters (key => val pairs). |
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| 102 | */ |
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| 103 | function setParam($params) |
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| 104 | { |
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[136] | 105 | $app =& App::getInstance(); |
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| 106 | |
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[92] | 107 | if (isset($params) && is_array($params)) { |
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| 108 | // Merge new parameters with old overriding only those passed. |
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| 109 | $this->_params = array_merge($this->_params, $params); |
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| 110 | } else { |
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[136] | 111 | $app->logMsg(sprintf('Parameters are not an array: %s', $params), LOG_WARNING, __FILE__, __LINE__); |
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[92] | 112 | } |
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| 113 | } |
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[42] | 114 | |
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[92] | 115 | /** |
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| 116 | * Return the value of a parameter, if it exists. |
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| 117 | * |
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| 118 | * @access public |
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| 119 | * @param string $param Which parameter to return. |
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| 120 | * @return mixed Configured parameter value. |
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| 121 | */ |
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| 122 | function getParam($param) |
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| 123 | { |
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[136] | 124 | $app =& App::getInstance(); |
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| 125 | |
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[92] | 126 | if (isset($this->_params[$param])) { |
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| 127 | return $this->_params[$param]; |
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| 128 | } else { |
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[146] | 129 | $app->logMsg(sprintf('Parameter is not set: %s', $param), LOG_DEBUG, __FILE__, __LINE__); |
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[92] | 130 | return null; |
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[1] | 131 | } |
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[92] | 132 | } |
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| 133 | |
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| 134 | /* |
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| 135 | * Load the pedit data and run automatic functions. |
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| 136 | * |
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| 137 | * @access public |
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| 138 | * @author Quinn Comendant <quinn@strangecode.com> |
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| 139 | * @since 12 Apr 2006 12:43:47 |
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| 140 | */ |
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| 141 | function start($initialize_data_file=false) |
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| 142 | { |
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[136] | 143 | $app =& App::getInstance(); |
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| 144 | |
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[92] | 145 | if (!is_dir($this->getParam('data_dir'))) { |
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| 146 | trigger_error(sprintf('PEdit data directory not found: %s', $this->getParam('data_dir')), E_USER_WARNING); |
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| 147 | } |
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| 148 | |
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| 149 | // The location of the data file. (i.e.: "COMMON_DIR/html/_pedit_data/news/index.xml") |
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| 150 | $this->_data_file = sprintf('%s%s.xml', $this->getParam('data_dir'), $_SERVER['PHP_SELF']); |
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[42] | 151 | |
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[92] | 152 | // op is used throughout the script to determine state. |
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[1] | 153 | $this->op = getFormData('op'); |
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[42] | 154 | |
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[92] | 155 | // Automatic functions based on state. |
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[1] | 156 | switch ($this->op) { |
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| 157 | case 'Save' : |
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| 158 | if ($this->_writeData()) { |
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[136] | 159 | $app->dieURL($_SERVER['PHP_SELF']); |
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[1] | 160 | } |
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| 161 | break; |
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[332] | 162 | |
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[1] | 163 | case 'Restore' : |
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[92] | 164 | if ($this->_restoreVersion(getFormData('version'))) { |
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[136] | 165 | $app->dieURL($_SERVER['PHP_SELF']); |
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[1] | 166 | } |
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| 167 | break; |
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[332] | 168 | |
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[92] | 169 | case 'View' : |
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| 170 | $this->_data_file = sprintf('%s%s__%s.xml', $this->getParam('data_dir'), $_SERVER['PHP_SELF'], getFormData('version')); |
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[136] | 171 | $app->raiseMsg(sprintf(_("This is <em><strong>only a preview</strong></em> of version %s."), getFormData('version')), MSG_NOTICE, __FILE__, __LINE__); |
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[92] | 172 | break; |
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[1] | 173 | } |
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[92] | 174 | |
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| 175 | // Load data. |
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| 176 | $this->_loadDataFile(); |
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| 177 | |
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| 178 | if ($initialize_data_file === true) { |
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| 179 | $this->_createVersion(); |
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| 180 | $this->_initializeDataFile(); |
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| 181 | } |
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[1] | 182 | } |
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[42] | 183 | |
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[1] | 184 | /** |
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| 185 | * Stores a variable in the pedit data array with the content name, and type of form. |
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[42] | 186 | * |
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| 187 | * @access public |
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| 188 | * |
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[92] | 189 | * @param string $content The variable containing the text to store. |
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| 190 | * @param array $options Additional options to store with this data. |
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[1] | 191 | */ |
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[92] | 192 | function set($name, $options=array()) |
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[1] | 193 | { |
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[136] | 194 | $app =& App::getInstance(); |
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| 195 | |
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[92] | 196 | $name = preg_replace('/\s/', '_', $name); |
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| 197 | if (!isset($this->_data[$name])) { |
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| 198 | $this->_data[$name] = array_merge(array('content' => ''), $options); |
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| 199 | } else { |
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[136] | 200 | $app->logMsg(sprintf('Duplicate set data: %s', $name), LOG_NOTICE, __FILE__, __LINE__); |
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[1] | 201 | } |
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| 202 | } |
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| 203 | |
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[42] | 204 | /** |
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[92] | 205 | * Returns the contents of a data variable. The variable must first be 'set'. |
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[1] | 206 | * |
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[42] | 207 | * @access public |
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[92] | 208 | * @param string $name The name of the variable to return. |
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| 209 | * @return string The trimmed content of the named data. |
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[42] | 210 | */ |
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[92] | 211 | function get($name) |
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[1] | 212 | { |
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[92] | 213 | $name = preg_replace('/\s/', '_', $name); |
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[1] | 214 | if ($this->op != 'Edit' && $this->op != 'Versions' && isset($this->_data[$name]['content'])) { |
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[92] | 215 | return $this->_data[$name]['content']; |
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| 216 | } else { |
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| 217 | return ''; |
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[1] | 218 | } |
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| 219 | } |
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| 220 | |
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[42] | 221 | /** |
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[92] | 222 | * Prints the beginning <form> HTML tag, as well as hidden input forms. |
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[42] | 223 | * |
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[92] | 224 | * @return bool False if unauthorized or current page is a version. |
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[42] | 225 | */ |
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[92] | 226 | function formBegin() |
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[1] | 227 | { |
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[136] | 228 | $app =& App::getInstance(); |
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| 229 | |
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[93] | 230 | if (!$this->_authorized || empty($this->_data)) { |
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[92] | 231 | return false; |
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| 232 | } |
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[101] | 233 | ?> |
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[185] | 234 | <form action="<?php echo oTxt($_SERVER['PHP_SELF']); ?>" method="post" id="sc-pedit-form"> |
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| 235 | <input type="hidden" name="filename" value="<?php echo oTxt($_SERVER['PHP_SELF']); ?>" /> |
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[101] | 236 | <input type="hidden" name="file_hash" value="<?php echo $this->_fileHash(); ?>" /> |
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| 237 | <?php |
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[136] | 238 | $app->printHiddenSession(); |
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[92] | 239 | switch ($this->op) { |
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| 240 | case 'Edit' : |
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[101] | 241 | ?> |
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| 242 | <div class="sc-pedit-buttons"> |
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[247] | 243 | <input type="submit" name="op" value="<?php echo _("Save"); ?>" title="<?php echo preg_replace('/^(\w)/i', '($1)', _("Save"))?>" accesskey="<?php echo mb_substr(_("Save"), 0, 1) ?>" /> |
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| 244 | <input type="submit" name="op" value="<?php echo _("Cancel"); ?>" title="<?php echo preg_replace('/^(\w)/i', '($1)', _("Cancel"))?>" accesskey="<?php echo mb_substr(_("Cancel"), 0, 1) ?>" /> |
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[101] | 245 | </div> |
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| 246 | <?php |
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[92] | 247 | break; |
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[332] | 248 | |
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[92] | 249 | case 'View' : |
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[101] | 250 | ?> |
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| 251 | <input type="hidden" name="version" value="<?php echo getFormData('version'); ?>" /> |
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| 252 | <?php |
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[92] | 253 | break; |
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[1] | 254 | } |
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| 255 | } |
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| 256 | |
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[42] | 257 | /** |
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[92] | 258 | * Loops through the PEdit data array and prints all the HTML forms corresponding |
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| 259 | * to all pedit variables, in the order in which they were 'set'. |
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[1] | 260 | * |
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[42] | 261 | * @access public |
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| 262 | */ |
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[92] | 263 | function printAllForms() |
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[1] | 264 | { |
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[92] | 265 | if ($this->_authorized && $this->op == 'Edit' && is_array($this->_data) && $this->_data_loaded) { |
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| 266 | foreach ($this->_data as $name=>$d) { |
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| 267 | $this->printForm($name); |
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[1] | 268 | } |
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| 269 | } |
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| 270 | } |
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| 271 | |
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[42] | 272 | /** |
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| 273 | * Prints the HTML forms corresponding to pedit variables. Each variable |
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[1] | 274 | * must first be 'set'. |
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[42] | 275 | * |
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| 276 | * @access public |
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| 277 | * @param string $name The name of the variable. |
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[92] | 278 | * @param string $type Type of form to print. Currently only 'text' and 'textarea' supported. |
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[42] | 279 | */ |
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[92] | 280 | function printForm($name, $type='text') |
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[1] | 281 | { |
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[98] | 282 | if ($this->_authorized && $this->op == 'Edit' && $this->_data_loaded) { |
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[101] | 283 | ?> |
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| 284 | <div class="sc-pedit-item"> |
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| 285 | <?php |
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[92] | 286 | $type = (isset($this->_data[$name]['type'])) ? $this->_data[$name]['type'] : $type; |
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[1] | 287 | // Print edit form. |
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[92] | 288 | switch ($type) { |
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| 289 | case 'text' : |
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| 290 | default : |
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[101] | 291 | ?> |
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[332] | 292 | <label> |
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| 293 | <?php echo ucfirst(str_replace('_', ' ', $name)); ?> |
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[121] | 294 | <input type="text" name="_pedit_data[<?php echo $name; ?>]" id="sc-pedit-field-<?php echo $name; ?>" value="<?php echo oTxt($this->_data[$name]['content']); ?>" class="sc-full" /> |
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[332] | 295 | </label> |
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[101] | 296 | <?php |
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[1] | 297 | break; |
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[332] | 298 | |
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[1] | 299 | case 'textarea' : |
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[101] | 300 | ?> |
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[332] | 301 | <label> |
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| 302 | <?php echo ucfirst(str_replace('_', ' ', $name)); ?> |
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[124] | 303 | <textarea name="_pedit_data[<?php echo $name; ?>]" id="sc-pedit-field-<?php echo $name; ?>" rows="" cols="" class="sc-full sc-tall"><?php echo oTxt($this->_data[$name]['content']); ?></textarea> |
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[332] | 304 | </label> |
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[101] | 305 | <?php |
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[1] | 306 | break; |
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| 307 | } |
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[101] | 308 | ?> |
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| 309 | </div> |
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| 310 | <?php |
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[1] | 311 | } |
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| 312 | } |
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[42] | 313 | |
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| 314 | /** |
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[334] | 315 | * Prints the ending </form> HTML tag, as well as buttons used during |
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[42] | 316 | * different operations. |
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| 317 | * |
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| 318 | * @return bool False if unauthorized or current page is a version. |
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| 319 | */ |
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[1] | 320 | function formEnd() |
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| 321 | { |
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[93] | 322 | if (!$this->_authorized || empty($this->_data)) { |
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[1] | 323 | // Don't show form elements for versioned documents. |
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| 324 | return false; |
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| 325 | } |
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| 326 | switch ($this->op) { |
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| 327 | case 'Edit' : |
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[101] | 328 | ?> |
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| 329 | <div class="sc-pedit-buttons"> |
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[247] | 330 | <input type="submit" name="op" value="<?php echo _("Save"); ?>" title="<?php echo preg_replace('/^(\w)/i', '($1)', _("Save"))?>" accesskey="<?php echo mb_substr(_("Save"), 0, 1) ?>" /> |
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| 331 | <input type="submit" name="op" value="<?php echo _("Cancel"); ?>" title="<?php echo preg_replace('/^(\w)/i', '($1)', _("Cancel"))?>" accesskey="<?php echo mb_substr(_("Cancel"), 0, 1) ?>" /> |
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[101] | 332 | </div> |
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| 333 | </form> |
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| 334 | <?php |
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[1] | 335 | break; |
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[332] | 336 | |
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[1] | 337 | case 'Versions' : |
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[101] | 338 | ?> |
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| 339 | <div class="sc-pedit-buttons"> |
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[247] | 340 | <input type="submit" name="op" value="<?php echo _("Cancel"); ?>" title="<?php echo preg_replace('/^(\w)/i', '($1)', _("Cancel"))?>" accesskey="<?php echo mb_substr(_("Cancel"), 0, 1) ?>" /> |
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[101] | 341 | </div> |
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| 342 | </form> |
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| 343 | <?php |
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[1] | 344 | break; |
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[332] | 345 | |
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[92] | 346 | case 'View' : |
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[101] | 347 | ?> |
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| 348 | <div class="sc-pedit-buttons"> |
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[247] | 349 | <input type="submit" name="op" value="<?php echo _("Restore"); ?>" title="<?php echo preg_replace('/^(\w)/i', '($1)', _("Restore"))?>" accesskey="<?php echo mb_substr(_("Restore"), 0, 1) ?>" /> |
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| 350 | <input type="submit" name="op" value="<?php echo _("Versions"); ?>" title="<?php echo preg_replace('/^(\w)/i', '($1)', _("Versions"))?>" accesskey="<?php echo mb_substr(_("Versions"), 0, 1) ?>" /> |
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| 351 | <input type="submit" name="op" value="<?php echo _("Cancel"); ?>" title="<?php echo preg_replace('/^(\w)/i', '($1)', _("Cancel"))?>" accesskey="<?php echo mb_substr(_("Cancel"), 0, 1) ?>" /> |
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[101] | 352 | </div> |
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| 353 | </form> |
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| 354 | <?php |
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[92] | 355 | break; |
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[332] | 356 | |
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[1] | 357 | default : |
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[101] | 358 | ?> |
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| 359 | <div class="sc-pedit-buttons"> |
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[247] | 360 | <input type="submit" name="op" value="<?php echo _("Edit"); ?>" title="<?php echo preg_replace('/^(\w)/i', '($1)', _("Edit"))?>" accesskey="<?php echo mb_substr(_("Edit"), 0, 1) ?>" /> |
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| 361 | <input type="submit" name="op" value="<?php echo _("Versions"); ?>" title="<?php echo preg_replace('/^(\w)/i', '($1)', _("Versions"))?>" accesskey="<?php echo mb_substr(_("Versions"), 0, 1) ?>" /> |
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[101] | 362 | </div> |
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| 363 | </form> |
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| 364 | <?php |
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[1] | 365 | } |
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| 366 | } |
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[42] | 367 | |
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| 368 | /** |
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[92] | 369 | * Prints an HTML list of versions of current file, with the filesize |
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| 370 | * and links to view and restore the file. |
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| 371 | * |
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| 372 | * @access public |
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| 373 | */ |
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| 374 | function printVersions() |
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| 375 | { |
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[136] | 376 | $app =& App::getInstance(); |
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| 377 | |
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[92] | 378 | if ($this->_authorized && $this->op == 'Versions') { |
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| 379 | // Print versions and commands to view/restore. |
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| 380 | $version_files = $this->_getVersions(); |
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[101] | 381 | ?><h1><?php printf(_("%s saved versions of %s"), sizeof($version_files), basename($_SERVER['PHP_SELF'])); ?></h1><?php |
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[92] | 382 | if (is_array($version_files) && !empty($version_files)) { |
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[101] | 383 | ?> |
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| 384 | <table id="sc-pedit-versions-table"> |
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| 385 | <tr> |
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| 386 | <th><?php echo _("Date"); ?></th> |
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| 387 | <th><?php echo _("Time"); ?></th> |
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| 388 | <th><?php echo _("File size"); ?></th> |
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| 389 | <th><?php echo _("Version options"); ?></th> |
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| 390 | </tr> |
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| 391 | <?php |
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[92] | 392 | foreach ($version_files as $v) { |
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[101] | 393 | ?> |
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| 394 | <tr> |
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[136] | 395 | <td><?php echo date($app->getParam('date_format'), $v['unixtime']); ?></td> |
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| 396 | <td><?php echo date($app->getParam('time_format'), $v['unixtime']); ?></td> |
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[101] | 397 | <td><?php echo humanFileSize($v['filesize']); ?></td> |
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[136] | 398 | <td class="sc-nowrap"><a href="<?php echo $app->oHREF($_SERVER['PHP_SELF'] . '?op=View&version=' . $v['unixtime'] . '&file_hash=' . $this->_fileHash()); ?>"><?php echo _("View"); ?></a> <?php echo _("or"); ?> <a href="<?php echo $app->oHREF($_SERVER['PHP_SELF'] . '?op=Restore&version=' . $v['unixtime'] . '&file_hash=' . $this->_fileHash()); ?>"><?php echo _("Restore"); ?></a></td> |
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[101] | 399 | </tr> |
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| 400 | <?php |
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[92] | 401 | } |
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[101] | 402 | ?> |
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| 403 | </table> |
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[121] | 404 | <div class="sc-help"><?php printf(_("When there are more than %s versions, those over %s days old are deleted."), $this->getParam('versions_min_qty'), $this->getParam('versions_min_days')); ?></div> |
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[101] | 405 | <?php |
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[92] | 406 | } |
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| 407 | } |
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| 408 | } |
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| 409 | |
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| 410 | /* |
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[334] | 411 | * Returns a secret hash for the current file. |
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[92] | 412 | * |
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| 413 | * @access public |
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| 414 | * @author Quinn Comendant <quinn@strangecode.com> |
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| 415 | * @since 12 Apr 2006 10:52:35 |
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| 416 | */ |
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| 417 | function _fileHash() |
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| 418 | { |
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[136] | 419 | $app =& App::getInstance(); |
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| 420 | |
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| 421 | return md5($app->getParam('signing_key') . $_SERVER['PHP_SELF']); |
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[92] | 422 | } |
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| 423 | |
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| 424 | /* |
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| 425 | * Load the XML data file into $this->_data. |
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| 426 | * |
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| 427 | * @access public |
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| 428 | * @return bool false on error |
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| 429 | * @author Quinn Comendant <quinn@strangecode.com> |
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| 430 | * @since 11 Apr 2006 20:36:26 |
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| 431 | */ |
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| 432 | function _loadDataFile() |
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| 433 | { |
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[136] | 434 | $app =& App::getInstance(); |
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| 435 | |
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[92] | 436 | if (!file_exists($this->_data_file)) { |
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| 437 | if (!$this->_initializeDataFile()) { |
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[136] | 438 | $app->logMsg(sprintf('Initializing content file failed: %s', $this->_data_file), LOG_WARNING, __FILE__, __LINE__); |
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[92] | 439 | return false; |
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| 440 | } |
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| 441 | } |
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| 442 | $xml_file_contents = file_get_contents($this->_data_file); |
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| 443 | $status = $this->xml_unserializer->unserialize($xml_file_contents, false); |
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| 444 | if (PEAR::isError($status)) { |
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[136] | 445 | $app->logMsg(sprintf('XML_Unserialize error: %s', $status->getMessage()), LOG_WARNING, __FILE__, __LINE__); |
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[92] | 446 | return false; |
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| 447 | } |
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| 448 | $xml_file_data = $this->xml_unserializer->getUnserializedData(); |
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| 449 | |
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| 450 | // Only load data specified with set(), even though there may be more in the xml file. |
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| 451 | foreach ($this->_data as $name => $initial_data) { |
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| 452 | if (isset($xml_file_data[$name])) { |
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| 453 | $this->_data[$name] = array_merge($initial_data, $xml_file_data[$name]); |
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| 454 | } else { |
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| 455 | $this->_data[$name] = $initial_data; |
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| 456 | } |
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| 457 | } |
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| 458 | |
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| 459 | $this->_data_loaded = true; |
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| 460 | return true; |
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| 461 | } |
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| 462 | |
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| 463 | /* |
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| 464 | * Start a new data file. |
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| 465 | * |
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| 466 | * @access public |
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| 467 | * @return The success value of both xml_serializer->serialize() and _filePutContents() |
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| 468 | * @author Quinn Comendant <quinn@strangecode.com> |
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| 469 | * @since 11 Apr 2006 20:53:42 |
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| 470 | */ |
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| 471 | function _initializeDataFile() |
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| 472 | { |
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[136] | 473 | $app =& App::getInstance(); |
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| 474 | |
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| 475 | $app->logMsg(sprintf('Initializing data file: %s', $this->_data_file), LOG_INFO, __FILE__, __LINE__); |
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[92] | 476 | $xml_file_contents = $this->xml_serializer->serialize($this->_data); |
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| 477 | return $this->_filePutContents($this->_data_file, $xml_file_contents); |
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| 478 | } |
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| 479 | |
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| 480 | /** |
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[1] | 481 | * Saves the POSTed data by overwriting the pedit variables in the |
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[42] | 482 | * current file. |
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| 483 | * |
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| 484 | * @access private |
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| 485 | * @return bool False if unauthorized or on failure. True on success. |
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| 486 | */ |
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[1] | 487 | function _writeData() |
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| 488 | { |
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[136] | 489 | $app =& App::getInstance(); |
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| 490 | |
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[1] | 491 | if (!$this->_authorized) { |
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| 492 | return false; |
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| 493 | } |
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[92] | 494 | if ($this->_fileHash() != getFormData('file_hash')) { |
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[1] | 495 | // Posted data is NOT for this file! |
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[136] | 496 | $app->logMsg(sprintf('File_hash does not match current file.', null), LOG_WARNING, __FILE__, __LINE__); |
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[1] | 497 | return false; |
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| 498 | } |
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[42] | 499 | |
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[92] | 500 | // Scrub incoming data. Escape tags? |
---|
| 501 | $new_data = getFormData('_pedit_data'); |
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[1] | 502 | |
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[92] | 503 | if (is_array($new_data) && !empty($new_data)) { |
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[1] | 504 | // Make certain a version is created. |
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[92] | 505 | $this->_deleteOldVersions(); |
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| 506 | if (!$this->_createVersion()) { |
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[136] | 507 | $app->logMsg(sprintf('Failed creating new version of file.', null), LOG_NOTICE, __FILE__, __LINE__); |
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[1] | 508 | return false; |
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| 509 | } |
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[92] | 510 | |
---|
| 511 | // Collect posted data that is already specified in _data (by set()). |
---|
| 512 | foreach ($new_data as $name => $content) { |
---|
| 513 | if (isset($this->_data[$name])) { |
---|
| 514 | $this->_data[$name]['content'] = $content; |
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| 515 | } |
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| 516 | } |
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| 517 | |
---|
| 518 | if (is_array($this->_data) && !empty($this->_data)) { |
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| 519 | $xml_file_contents = $this->xml_serializer->serialize($this->_data); |
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| 520 | return $this->_filePutContents($this->_data_file, $xml_file_contents); |
---|
| 521 | } |
---|
| 522 | } |
---|
| 523 | } |
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| 524 | |
---|
| 525 | /* |
---|
| 526 | * Writes content to the specified file. |
---|
| 527 | * |
---|
| 528 | * @access public |
---|
| 529 | * @param string $filename Path to file. |
---|
| 530 | * @param string $content Data to write into file. |
---|
| 531 | * @return bool Success or failure. |
---|
| 532 | * @author Quinn Comendant <quinn@strangecode.com> |
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| 533 | * @since 11 Apr 2006 22:48:30 |
---|
| 534 | */ |
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| 535 | function _filePutContents($filename, $content) |
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| 536 | { |
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[136] | 537 | $app =& App::getInstance(); |
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| 538 | |
---|
[92] | 539 | // Ensure requested filename is within the pedit data dir. |
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[247] | 540 | if (mb_strpos($filename, $this->getParam('data_dir')) === false) { |
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[136] | 541 | $app->logMsg(sprintf('Failed writing file outside pedit _data_dir: %s', $filename), LOG_ERR, __FILE__, __LINE__); |
---|
[92] | 542 | return false; |
---|
| 543 | } |
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[42] | 544 | |
---|
[92] | 545 | // Recursively create directories. |
---|
| 546 | $subdirs = preg_split('!/!', str_replace($this->getParam('data_dir'), '', dirname($filename)), -1, PREG_SPLIT_NO_EMPTY); |
---|
| 547 | // Start with the pedit _data_dir base. |
---|
| 548 | $curr_path = $this->getParam('data_dir'); |
---|
| 549 | while (!empty($subdirs)) { |
---|
| 550 | $curr_path .= '/' . array_shift($subdirs); |
---|
| 551 | if (!is_dir($curr_path)) { |
---|
| 552 | if (!mkdir($curr_path)) { |
---|
[136] | 553 | $app->logMsg(sprintf('Failed mkdir: %s', $curr_path), LOG_ERR, __FILE__, __LINE__); |
---|
[1] | 554 | return false; |
---|
| 555 | } |
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[92] | 556 | } |
---|
| 557 | } |
---|
| 558 | |
---|
| 559 | // Open file for writing and truncate to zero length. |
---|
| 560 | if ($fp = fopen($filename, 'w')) { |
---|
| 561 | if (flock($fp, LOCK_EX)) { |
---|
[247] | 562 | fwrite($fp, $content, mb_strlen($content)); |
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[92] | 563 | flock($fp, LOCK_UN); |
---|
[1] | 564 | } else { |
---|
[136] | 565 | $app->logMsg(sprintf('Could not lock file for writing: %s', $filename), LOG_ERR, __FILE__, __LINE__); |
---|
[1] | 566 | return false; |
---|
| 567 | } |
---|
[92] | 568 | fclose($fp); |
---|
| 569 | // Success! |
---|
[136] | 570 | $app->logMsg(sprintf('Wrote to file: %s', $filename), LOG_DEBUG, __FILE__, __LINE__); |
---|
[92] | 571 | return true; |
---|
| 572 | } else { |
---|
[136] | 573 | $app->logMsg(sprintf('Could not open file for writing: %s', $filename), LOG_ERR, __FILE__, __LINE__); |
---|
[92] | 574 | return false; |
---|
[1] | 575 | } |
---|
| 576 | } |
---|
[42] | 577 | |
---|
| 578 | /** |
---|
| 579 | * Makes a copy of the current file with the unix timestamp appended to the |
---|
[92] | 580 | * filename. |
---|
[42] | 581 | * |
---|
| 582 | * @access private |
---|
[92] | 583 | * @return bool False on failure. True on success. |
---|
[42] | 584 | */ |
---|
[92] | 585 | function _createVersion() |
---|
[1] | 586 | { |
---|
[136] | 587 | $app =& App::getInstance(); |
---|
| 588 | |
---|
[1] | 589 | if (!$this->_authorized) { |
---|
| 590 | return false; |
---|
| 591 | } |
---|
[92] | 592 | if ($this->_fileHash() != getFormData('file_hash')) { |
---|
[1] | 593 | // Posted data is NOT for this file! |
---|
[136] | 594 | $app->logMsg(sprintf('File_hash does not match current file.', null), LOG_ERR, __FILE__, __LINE__); |
---|
[1] | 595 | return false; |
---|
| 596 | } |
---|
[42] | 597 | |
---|
[92] | 598 | // Ensure current data file exists. |
---|
| 599 | if (!file_exists($this->_data_file)) { |
---|
[136] | 600 | $app->logMsg(sprintf('Data file does not yet exist: %s', $this->_data_file), LOG_NOTICE, __FILE__, __LINE__); |
---|
[92] | 601 | return false; |
---|
[1] | 602 | } |
---|
| 603 | |
---|
| 604 | // Do the actual copy. File naming scheme must be consistent! |
---|
[92] | 605 | // filename.php.xml becomes filename.php__1124124128.xml |
---|
| 606 | $version_file = sprintf('%s__%s.xml', preg_replace('/\.xml$/', '', $this->_data_file), time()); |
---|
| 607 | if (!copy($this->_data_file, $version_file)) { |
---|
[136] | 608 | $app->logMsg(sprintf('Failed copying new version: %s -> %s', $this->_data_file, $version_file), LOG_ERR, __FILE__, __LINE__); |
---|
[1] | 609 | return false; |
---|
| 610 | } |
---|
[42] | 611 | |
---|
[1] | 612 | return true; |
---|
| 613 | } |
---|
[92] | 614 | |
---|
| 615 | /* |
---|
| 616 | * Delete all versions older than versions_min_days if there are more than versions_min_qty or 100. |
---|
| 617 | * |
---|
| 618 | * @access public |
---|
| 619 | * @return bool False on failure. True on success. |
---|
| 620 | * @author Quinn Comendant <quinn@strangecode.com> |
---|
| 621 | * @since 12 Apr 2006 11:08:11 |
---|
| 622 | */ |
---|
| 623 | function _deleteOldVersions() |
---|
| 624 | { |
---|
[136] | 625 | $app =& App::getInstance(); |
---|
| 626 | |
---|
[92] | 627 | $version_files = $this->_getVersions(); |
---|
| 628 | if (is_array($version_files) && sizeof($version_files) > $this->getParam('versions_min_qty')) { |
---|
| 629 | // Pop oldest ones off bottom of array. |
---|
| 630 | $oldest = array_pop($version_files); |
---|
| 631 | // Loop while minimum X qty && minimum X days worth but never more than 100 qty. |
---|
| 632 | while ((sizeof($version_files) > $this->getParam('versions_min_qty') |
---|
| 633 | && $oldest['unixtime'] < mktime(date('H'), date('i'), date('s'), date('m'), date('d') - $this->getParam('versions_min_days'), date('Y'))) |
---|
| 634 | || sizeof($version_files) > 100) { |
---|
| 635 | $del_file = dirname($this->_data_file) . '/' . $oldest['filename']; |
---|
| 636 | if (!unlink($del_file)) { |
---|
[136] | 637 | $app->logMsg(sprintf('Failed deleting version: %s', $del_file), LOG_ERR, __FILE__, __LINE__); |
---|
[92] | 638 | } |
---|
| 639 | $oldest = array_pop($version_files); |
---|
| 640 | } |
---|
| 641 | } |
---|
| 642 | } |
---|
[42] | 643 | |
---|
| 644 | /** |
---|
| 645 | * Returns an array of all archived versions of the current file, |
---|
[1] | 646 | * sorted with newest versions at the top of the array. |
---|
[42] | 647 | * |
---|
[1] | 648 | * @access private |
---|
[42] | 649 | * @return array Array of versions. |
---|
| 650 | */ |
---|
[1] | 651 | function _getVersions() |
---|
| 652 | { |
---|
[92] | 653 | $version_files = array(); |
---|
| 654 | $dir_handle = opendir(dirname($this->_data_file)); |
---|
| 655 | $curr_file_preg_pattern = sprintf('/^%s__(\d+).xml$/', preg_quote(basename($_SERVER['PHP_SELF']))); |
---|
| 656 | while ($dir_handle && ($version_file = readdir($dir_handle)) !== false) { |
---|
| 657 | if (!preg_match('/^\./', $version_file) && !is_dir($version_file) && preg_match($curr_file_preg_pattern, $version_file, $time)) { |
---|
| 658 | $version_files[] = array( |
---|
| 659 | 'filename' => $version_file, |
---|
[42] | 660 | 'unixtime' => $time[1], |
---|
[92] | 661 | 'filesize' => filesize(dirname($this->_data_file) . '/' . $version_file) |
---|
[1] | 662 | ); |
---|
| 663 | } |
---|
| 664 | } |
---|
| 665 | |
---|
[92] | 666 | if (is_array($version_files) && !empty($version_files)) { |
---|
| 667 | array_multisort($version_files, SORT_DESC); |
---|
| 668 | return $version_files; |
---|
[1] | 669 | } else { |
---|
| 670 | return array(); |
---|
| 671 | } |
---|
| 672 | } |
---|
[42] | 673 | |
---|
| 674 | /** |
---|
[1] | 675 | * Makes a version backup of the current file, then copies the specified |
---|
[42] | 676 | * archived version over the current file. |
---|
| 677 | * |
---|
| 678 | * @access private |
---|
[92] | 679 | * @param string $version Unix timestamp of archived version to restore. |
---|
| 680 | * @return bool False on failure. True on success. |
---|
[42] | 681 | */ |
---|
[92] | 682 | function _restoreVersion($version) |
---|
[1] | 683 | { |
---|
[136] | 684 | $app =& App::getInstance(); |
---|
| 685 | |
---|
[1] | 686 | if (!$this->_authorized) { |
---|
| 687 | return false; |
---|
| 688 | } |
---|
[92] | 689 | |
---|
| 690 | // The file to restore. |
---|
| 691 | $version_file = sprintf('%s__%s.xml', preg_replace('/\.xml$/', '', $this->_data_file), $version); |
---|
| 692 | |
---|
| 693 | // Ensure specified version exists. |
---|
| 694 | if (!file_exists($version_file)) { |
---|
[334] | 695 | $app->logMsg(sprintf('Cannot restore non-existent file: %s', $version_file), LOG_NOTICE, __FILE__, __LINE__); |
---|
[92] | 696 | return false; |
---|
| 697 | } |
---|
[42] | 698 | |
---|
[92] | 699 | // Make certain a version is created. |
---|
| 700 | if (!$this->_createVersion()) { |
---|
[136] | 701 | $app->logMsg(sprintf('Failed creating new version of file.', null), LOG_ERR, __FILE__, __LINE__); |
---|
[92] | 702 | return false; |
---|
| 703 | } |
---|
[42] | 704 | |
---|
[92] | 705 | // Do the actual copy. |
---|
| 706 | if (!copy($version_file, $this->_data_file)) { |
---|
[136] | 707 | $app->logMsg(sprintf('Failed copying old version: %s -> %s', $version_file, $this->_data_file), LOG_ERR, __FILE__, __LINE__); |
---|
[1] | 708 | return false; |
---|
| 709 | } |
---|
[92] | 710 | |
---|
| 711 | // Success! |
---|
[136] | 712 | $app->raiseMsg(sprintf(_("Page has been restored to version %s."), $version), MSG_SUCCESS, __FILE__, __LINE__); |
---|
[92] | 713 | return true; |
---|
[1] | 714 | } |
---|
[42] | 715 | |
---|
[1] | 716 | } // End class. |
---|
| 717 | |
---|
| 718 | ?> |
---|