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