[3637] | 1 | <?php |
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| 2 | /*********************************************** |
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| 3 | * File : diffbackend.php |
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| 4 | * Project : Z-Push |
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| 5 | * Descr : We do a standard differential |
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| 6 | * change detection by sorting both |
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| 7 | * lists of items by their unique id, |
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| 8 | * and then traversing both arrays |
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| 9 | * of items at once. Changes can be |
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| 10 | * detected by comparing items at |
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| 11 | * the same position in both arrays. |
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| 12 | * |
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| 13 | * Created : 01.10.2007 |
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| 14 | * |
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| 15 | * ᅵ Zarafa Deutschland GmbH, www.zarafaserver.de |
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| 16 | * This file is distributed under GPL v2. |
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| 17 | * Consult LICENSE file for details |
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| 18 | ************************************************/ |
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| 19 | |
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| 20 | include_once('proto.php'); |
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| 21 | include_once('backend.php'); |
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| 22 | |
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| 23 | |
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| 24 | |
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| 25 | function GetDiff($old, $new) { |
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| 26 | $changes = array(); |
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| 27 | |
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| 28 | // Sort both arrays in the same way by ID |
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| 29 | usort($old, "RowCmp"); |
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| 30 | usort($new, "RowCmp"); |
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| 31 | |
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| 32 | $inew = 0; |
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| 33 | $iold = 0; |
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| 34 | |
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| 35 | // Get changes by comparing our list of messages with |
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| 36 | // our previous state |
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| 37 | while(1) { |
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| 38 | $change = array(); |
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| 39 | |
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| 40 | if($iold >= count($old) || $inew >= count($new)) |
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| 41 | break; |
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| 42 | |
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| 43 | if($old[$iold]["id"] == $new[$inew]["id"]) { |
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| 44 | // Both messages are still available, compare flags and mod |
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| 45 | if(isset($old[$iold]["flags"]) && isset($new[$inew]["flags"]) && $old[$iold]["flags"] != $new[$inew]["flags"]) { |
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| 46 | // Flags changed |
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| 47 | $change["type"] = "flags"; |
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| 48 | $change["id"] = $new[$inew]["id"]; |
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| 49 | $change["flags"] = $new[$inew]["flags"]; |
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| 50 | $changes[] = $change; |
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| 51 | } |
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| 52 | |
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| 53 | if($old[$iold]["mod"] != $new[$inew]["mod"]) { |
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| 54 | $change["type"] = "change"; |
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| 55 | $change["id"] = $new[$inew]["id"]; |
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| 56 | $changes[] = $change; |
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| 57 | } |
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| 58 | |
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| 59 | $inew++; |
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| 60 | $iold++; |
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| 61 | } else { |
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| 62 | if($old[$iold]["id"] > $new[$inew]["id"]) { |
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| 63 | // Message in state seems to have disappeared (delete) |
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| 64 | $change["type"] = "delete"; |
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| 65 | $change["id"] = $old[$iold]["id"]; |
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| 66 | $changes[] = $change; |
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| 67 | $iold++; |
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| 68 | } else { |
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| 69 | // Message in new seems to be new (add) |
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| 70 | $change["type"] = "change"; |
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| 71 | $change["flags"] = SYNC_NEWMESSAGE; |
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| 72 | $change["id"] = $new[$inew]["id"]; |
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| 73 | $changes[] = $change; |
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| 74 | $inew++; |
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| 75 | } |
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| 76 | } |
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| 77 | } |
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| 78 | |
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| 79 | while($iold < count($old)) { |
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| 80 | // All data left in _syncstate have been deleted |
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| 81 | $change["type"] = "delete"; |
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| 82 | $change["id"] = $old[$iold]["id"]; |
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| 83 | $changes[] = $change; |
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| 84 | $iold++; |
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| 85 | } |
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| 86 | |
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| 87 | while($inew < count($new)) { |
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| 88 | // All data left in new have been added |
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| 89 | $change["type"] = "change"; |
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| 90 | $change["flags"] = SYNC_NEWMESSAGE; |
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| 91 | $change["id"] = $new[$inew]["id"]; |
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| 92 | $changes[] = $change; |
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| 93 | $inew++; |
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| 94 | } |
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| 95 | |
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| 96 | return $changes; |
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| 97 | } |
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| 98 | |
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| 99 | function RowCmp($a, $b) { |
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| 100 | return $a["id"] < $b["id"] ? 1 : -1; |
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| 101 | } |
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| 102 | |
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| 103 | class DiffState { |
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| 104 | var $_syncstate; |
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| 105 | |
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| 106 | // Update the state to reflect changes |
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| 107 | function updateState($type, $change) { |
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| 108 | // Change can be a change or an add |
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| 109 | if($type == "change") { |
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| 110 | for($i=0; $i < count($this->_syncstate); $i++) { |
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| 111 | if($this->_syncstate[$i]["id"] == $change["id"]) { |
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| 112 | $this->_syncstate[$i] = $change; |
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| 113 | return; |
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| 114 | } |
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| 115 | } |
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| 116 | // Not found, add as new |
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| 117 | $this->_syncstate[] = $change; |
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| 118 | } else { |
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| 119 | for($i=0; $i < count($this->_syncstate); $i++) { |
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| 120 | // Search for the entry for this item |
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| 121 | if($this->_syncstate[$i]["id"] == $change["id"]) { |
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| 122 | if($type == "flags") { |
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| 123 | // Update flags |
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| 124 | $this->_syncstate[$i]["flags"] = $change["flags"]; |
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| 125 | } else if($type == "delete") { |
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| 126 | // Delete item |
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| 127 | array_splice($this->_syncstate, $i, 1); |
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| 128 | } |
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| 129 | return; |
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| 130 | } |
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| 131 | } |
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| 132 | } |
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| 133 | } |
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| 134 | |
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| 135 | // Returns TRUE if the given ID conflicts with the given operation. This is only true in the following situations: |
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| 136 | // |
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| 137 | // - Changed here and changed there |
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| 138 | // - Changed here and deleted there |
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| 139 | // - Deleted here and changed there |
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| 140 | // |
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| 141 | // Any other combination of operations can be done (e.g. change flags & move or move & delete) |
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| 142 | function isConflict($type, $folderid, $id) { |
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| 143 | $stat = $this->_backend->StatMessage($folderid, $id); |
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| 144 | |
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| 145 | if(!$stat) { |
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| 146 | // Message is gone |
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| 147 | if($type == "change") |
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| 148 | return true; // deleted here, but changed there |
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| 149 | else |
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| 150 | return false; // all other remote changes still result in a delete (no conflict) |
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| 151 | } |
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| 152 | |
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| 153 | foreach($this->_syncstate as $state) { |
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| 154 | if($state["id"] == $id) { |
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| 155 | $oldstat = $state; |
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| 156 | break; |
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| 157 | } |
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| 158 | } |
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| 159 | |
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| 160 | if(!isset($oldstat)) { |
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| 161 | // New message, can never conflict |
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| 162 | return false; |
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| 163 | } |
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| 164 | |
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| 165 | if($state["mod"] != $oldstat["mod"]) { |
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| 166 | // Changed here |
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| 167 | if($type == "delete" || $type == "change") |
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| 168 | return true; // changed here, but deleted there -> conflict, or changed here and changed there -> conflict |
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| 169 | else |
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| 170 | return false; // changed here, and other remote changes (move or flags) |
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| 171 | } |
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| 172 | } |
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| 173 | |
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| 174 | function GetState() { |
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| 175 | return serialize($this->_syncstate); |
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| 176 | } |
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| 177 | |
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| 178 | } |
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| 179 | |
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| 180 | class ImportContentsChangesDiff extends DiffState { |
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| 181 | var $_user; |
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| 182 | var $_folderid; |
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| 183 | |
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| 184 | function ImportContentsChangesDiff($backend, $folderid) { |
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| 185 | $this->_backend = $backend; |
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| 186 | $this->_folderid = $folderid; |
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| 187 | } |
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| 188 | |
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| 189 | function Config($state, $flags = 0) { |
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| 190 | $this->_syncstate = unserialize($state); |
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| 191 | $this->_flags = $flags; |
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| 192 | } |
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| 193 | |
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| 194 | function ImportMessageChange($id, $message) { |
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| 195 | //do nothing if it is in a dummy folder |
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| 196 | if ($this->_folderid == SYNC_FOLDER_TYPE_DUMMY) |
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| 197 | return false; |
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| 198 | |
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| 199 | if($id) { |
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| 200 | // See if there's a conflict |
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| 201 | $conflict = $this->isConflict("change", $this->_folderid, $id); |
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| 202 | |
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| 203 | // Update client state if this is an update |
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| 204 | $change = array(); |
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| 205 | $change["id"] = $id; |
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| 206 | $change["mod"] = 0; // dummy, will be updated later if the change succeeds |
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| 207 | $change["parent"] = $this->_folderid; |
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| 208 | $change["flags"] = (isset($message->read)) ? $message->read : 0; |
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| 209 | $this->updateState("change", $change); |
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| 210 | |
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| 211 | if($conflict && $this->_flags == SYNC_CONFLICT_OVERWRITE_PIM) |
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| 212 | return true; |
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| 213 | } |
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| 214 | |
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| 215 | $stat = $this->_backend->ChangeMessage($this->_folderid, $id, $message); |
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| 216 | |
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| 217 | if(!is_array($stat)) |
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| 218 | return $stat; |
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| 219 | |
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| 220 | // Record the state of the message |
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| 221 | $this->updateState("change", $stat); |
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| 222 | |
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| 223 | return $stat["id"]; |
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| 224 | } |
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| 225 | |
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| 226 | // Import a deletion. This may conflict if the local object has been modified. |
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| 227 | function ImportMessageDeletion($id) { |
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| 228 | //do nothing if it is in a dummy folder |
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| 229 | if ($this->_folderid == SYNC_FOLDER_TYPE_DUMMY) |
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| 230 | return true; |
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| 231 | |
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| 232 | // See if there's a conflict |
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| 233 | $conflict = $this->isConflict("delete", $this->_folderid, $id); |
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| 234 | |
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| 235 | // Update client state |
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| 236 | $change = array(); |
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| 237 | $change["id"] = $id; |
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| 238 | $this->updateState("delete", $change); |
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| 239 | |
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| 240 | // If there is a conflict, and the server 'wins', then return OK without performing the change |
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| 241 | // this will cause the exporter to 'see' the overriding item as a change, and send it back to the PIM |
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| 242 | if($conflict && $this->_flags == SYNC_CONFLICT_OVERWRITE_PIM) |
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| 243 | return true; |
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| 244 | |
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| 245 | $this->_backend->DeleteMessage($this->_folderid, $id); |
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| 246 | |
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| 247 | return true; |
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| 248 | } |
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| 249 | |
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| 250 | // Import a change in 'read' flags .. This can never conflict |
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| 251 | function ImportMessageReadFlag($id, $flags) { |
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| 252 | //do nothing if it is a dummy folder |
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| 253 | if ($this->_folderid == SYNC_FOLDER_TYPE_DUMMY) |
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| 254 | return true; |
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| 255 | |
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| 256 | // Update client state |
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| 257 | $change = array(); |
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| 258 | $change["id"] = $id; |
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| 259 | $change["flags"] = $flags; |
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| 260 | $this->updateState("flags", $change); |
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| 261 | |
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| 262 | $this->_backend->SetReadFlag($this->_folderid, $id, $flags); |
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| 263 | |
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| 264 | return true; |
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| 265 | } |
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| 266 | |
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| 267 | function ImportMessageMove($id, $newfolder) { |
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| 268 | $this->_backend->MoveMessage($this->_folderid, $id, $newfolder); |
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| 269 | return true; |
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| 270 | } |
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| 271 | }; |
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| 272 | |
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| 273 | class ImportHierarchyChangesDiff extends DiffState { |
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| 274 | var $_user; |
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| 275 | |
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| 276 | function ImportHierarchyChangesDiff($backend) { |
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| 277 | $this->_backend = $backend; |
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| 278 | } |
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| 279 | |
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| 280 | function Config($state) { |
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| 281 | $this->_syncstate = unserialize($state); |
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| 282 | } |
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| 283 | |
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| 284 | function ImportFolderChange($id, $parent, $displayname, $type) { |
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| 285 | //do nothing if it is a dummy folder |
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| 286 | if ($parent == SYNC_FOLDER_TYPE_DUMMY) |
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| 287 | return false; |
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| 288 | |
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| 289 | if($id) { |
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| 290 | $change = array(); |
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| 291 | $change["id"] = $id; |
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| 292 | $change["mod"] = $displayname; |
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| 293 | $change["parent"] = $parent; |
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| 294 | $change["flags"] = 0; |
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| 295 | $this->updateState("change", $change); |
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| 296 | } |
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| 297 | |
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| 298 | $stat = $this->_backend->ChangeFolder($parent, $id, $displayname, $type); |
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| 299 | |
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| 300 | if($stat) |
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| 301 | $this->updateState("change", $stat); |
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| 302 | |
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| 303 | return $stat["id"]; |
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| 304 | } |
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| 305 | |
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| 306 | function ImportFolderDeletion($id, $parent) { |
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| 307 | //do nothing if it is a dummy folder |
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| 308 | if ($parent == SYNC_FOLDER_TYPE_DUMMY) |
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| 309 | return false; |
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| 310 | |
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| 311 | $change = array(); |
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| 312 | $change["id"] = $id; |
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| 313 | |
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| 314 | $this->updateState("delete", $change); |
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| 315 | |
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| 316 | $this->_backend->DeleteFolder($parent, $id); |
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| 317 | |
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| 318 | return true; |
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| 319 | } |
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| 320 | }; |
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| 321 | |
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| 322 | class ExportChangesDiff extends DiffState { |
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| 323 | var $_importer; |
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| 324 | var $_folderid; |
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| 325 | var $_restrict; |
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| 326 | var $_flags; |
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| 327 | var $_user; |
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| 328 | |
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| 329 | function ExportChangesDiff($backend, $folderid) { |
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| 330 | $this->_backend = $backend; |
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| 331 | $this->_folderid = $folderid; |
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| 332 | } |
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| 333 | |
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| 334 | function Config(&$importer, $folderid, $restrict, $syncstate, $flags, $truncation) { |
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| 335 | $this->_importer = &$importer; |
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| 336 | $this->_restrict = $restrict; |
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| 337 | $this->_syncstate = unserialize($syncstate); |
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| 338 | $this->_flags = $flags; |
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| 339 | $this->_truncation = $truncation; |
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| 340 | |
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| 341 | $this->_changes = array(); |
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| 342 | $this->_step = 0; |
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| 343 | |
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| 344 | $cutoffdate = $this->getCutOffDate($restrict); |
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| 345 | |
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| 346 | if($this->_folderid) { |
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| 347 | // Get the changes since the last sync |
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| 348 | debugLog("Initializing message diff engine"); |
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| 349 | |
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| 350 | if(!isset($this->_syncstate) || !$this->_syncstate) |
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| 351 | $this->_syncstate = array(); |
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| 352 | |
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| 353 | debugLog(count($this->_syncstate) . " messages in state"); |
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| 354 | |
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| 355 | //do nothing if it is a dummy folder |
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| 356 | if ($this->_folderid != SYNC_FOLDER_TYPE_DUMMY) { |
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| 357 | |
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| 358 | // on ping: check if backend supports alternative PING mechanism & use it |
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| 359 | if ($folderid === false && $this->_flags == BACKEND_DISCARD_DATA && $this->_backend->AlterPing()) { |
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| 360 | $this->_changes = $this->_backend->AlterPingChanges($this->_folderid, $this->_syncstate); |
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| 361 | } |
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| 362 | else { |
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| 363 | // Get our lists - syncstate (old) and msglist (new) |
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| 364 | $msglist = $this->_backend->GetMessageList($this->_folderid, $cutoffdate); |
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| 365 | if($msglist === false) |
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| 366 | return false; |
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| 367 | |
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| 368 | $this->_changes = GetDiff($this->_syncstate, $msglist); |
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| 369 | } |
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| 370 | } |
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| 371 | |
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| 372 | debugLog("Found " . count($this->_changes) . " message changes"); |
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| 373 | } else { |
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| 374 | debugLog("Initializing folder diff engine"); |
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| 375 | |
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| 376 | $folderlist = $this->_backend->GetFolderList(); |
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| 377 | if($folderlist === false) |
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| 378 | return false; |
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| 379 | |
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| 380 | if(!isset($this->_syncstate) || !$this->_syncstate) |
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| 381 | $this->_syncstate = array(); |
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| 382 | |
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| 383 | $this->_changes = GetDiff($this->_syncstate, $folderlist); |
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| 384 | |
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| 385 | debugLog("Found " . count($this->_changes) . " folder changes"); |
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| 386 | } |
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| 387 | } |
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| 388 | |
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| 389 | function GetChangeCount() { |
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| 390 | return count($this->_changes); |
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| 391 | } |
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| 392 | |
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| 393 | function Synchronize() { |
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| 394 | $progress = array(); |
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| 395 | |
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| 396 | // Get one of our stored changes and send it to the importer, store the new state if |
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| 397 | // it succeeds |
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| 398 | if($this->_folderid == false) { |
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| 399 | if($this->_step < count($this->_changes)) { |
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| 400 | $change = $this->_changes[$this->_step]; |
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| 401 | |
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| 402 | switch($change["type"]) { |
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| 403 | case "change": |
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| 404 | $folder = $this->_backend->GetFolder($change["id"]); |
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| 405 | $stat = $this->_backend->StatFolder($change["id"]); |
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| 406 | |
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| 407 | if(!$folder) |
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| 408 | return; |
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| 409 | |
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| 410 | if($this->_flags & BACKEND_DISCARD_DATA || $this->_importer->ImportFolderChange($folder)) |
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| 411 | $this->updateState("change", $stat); |
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| 412 | break; |
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| 413 | case "delete": |
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| 414 | if($this->_flags & BACKEND_DISCARD_DATA || $this->_importer->ImportFolderDeletion($change["id"])) |
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| 415 | $this->updateState("delete", $change); |
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| 416 | break; |
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| 417 | } |
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| 418 | |
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| 419 | $this->_step++; |
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| 420 | |
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| 421 | $progress = array(); |
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| 422 | $progress["steps"] = count($this->_changes); |
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| 423 | $progress["progress"] = $this->_step; |
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| 424 | |
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| 425 | return $progress; |
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| 426 | } else { |
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| 427 | return false; |
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| 428 | } |
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| 429 | } |
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| 430 | else { |
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| 431 | if($this->_step < count($this->_changes)) { |
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| 432 | $change = $this->_changes[$this->_step]; |
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| 433 | |
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| 434 | switch($change["type"]) { |
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| 435 | case "change": |
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| 436 | $truncsize = $this->getTruncSize($this->_truncation); |
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| 437 | |
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| 438 | // Note: because 'parseMessage' and 'statMessage' are two seperate |
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| 439 | // calls, we have a chance that the message has changed between both |
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| 440 | // calls. This may cause our algorithm to 'double see' changes. |
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| 441 | |
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| 442 | $stat = $this->_backend->StatMessage($this->_folderid, $change["id"]); |
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| 443 | $message = $this->_backend->GetMessage($this->_folderid, $change["id"], $truncsize); |
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| 444 | |
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| 445 | // copy the flag to the message |
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| 446 | $message->flags = (isset($change["flags"])) ? $change["flags"] : 0; |
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| 447 | |
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| 448 | if($stat && $message) { |
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| 449 | if($this->_flags & BACKEND_DISCARD_DATA || $this->_importer->ImportMessageChange($change["id"], $message) == true) |
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| 450 | $this->updateState("change", $stat); |
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| 451 | } |
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| 452 | break; |
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| 453 | case "delete": |
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| 454 | if($this->_flags & BACKEND_DISCARD_DATA || $this->_importer->ImportMessageDeletion($change["id"]) == true) |
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| 455 | $this->updateState("delete", $change); |
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| 456 | break; |
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| 457 | case "flags": |
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| 458 | if($this->_flags & BACKEND_DISCARD_DATA || $this->_importer->ImportMessageReadFlag($change["id"], $change["flags"]) == true) |
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| 459 | $this->updateState("flags", $change); |
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| 460 | break; |
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| 461 | case "move": |
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| 462 | if($this->_flags & BACKEND_DISCARD_DATA || $this->_importer->ImportMessageMove($change["id"], $change["parent"]) == true) |
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| 463 | $this->updateState("move", $change); |
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| 464 | break; |
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| 465 | } |
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| 466 | |
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| 467 | $this->_step++; |
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| 468 | |
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| 469 | $progress = array(); |
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| 470 | $progress["steps"] = count($this->_changes); |
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| 471 | $progress["progress"] = $this->_step; |
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| 472 | |
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| 473 | return $progress; |
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| 474 | } else { |
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| 475 | return false; |
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| 476 | } |
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| 477 | } |
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| 478 | } |
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| 479 | |
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| 480 | // ----------------------------------------------------------------------- |
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| 481 | |
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| 482 | function getCutOffDate($restrict) { |
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| 483 | switch($restrict) { |
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| 484 | case SYNC_FILTERTYPE_1DAY: |
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| 485 | $back = 60 * 60 * 24; |
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| 486 | break; |
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| 487 | case SYNC_FILTERTYPE_3DAYS: |
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| 488 | $back = 60 * 60 * 24 * 3; |
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| 489 | break; |
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| 490 | case SYNC_FILTERTYPE_1WEEK: |
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| 491 | $back = 60 * 60 * 24 * 7; |
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| 492 | break; |
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| 493 | case SYNC_FILTERTYPE_2WEEKS: |
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| 494 | $back = 60 * 60 * 24 * 14; |
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| 495 | break; |
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| 496 | case SYNC_FILTERTYPE_1MONTH: |
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| 497 | $back = 60 * 60 * 24 * 31; |
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| 498 | break; |
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| 499 | case SYNC_FILTERTYPE_3MONTHS: |
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| 500 | $back = 60 * 60 * 24 * 31 * 3; |
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| 501 | break; |
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| 502 | case SYNC_FILTERTYPE_6MONTHS: |
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| 503 | $back = 60 * 60 * 24 * 31 * 6; |
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| 504 | break; |
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| 505 | default: |
---|
| 506 | break; |
---|
| 507 | } |
---|
| 508 | |
---|
| 509 | if(isset($back)) { |
---|
| 510 | $date = time() - $back; |
---|
| 511 | return $date; |
---|
| 512 | } else |
---|
| 513 | return 0; // unlimited |
---|
| 514 | } |
---|
| 515 | |
---|
| 516 | function getTruncSize($truncation) { |
---|
| 517 | switch($truncation) { |
---|
| 518 | case SYNC_TRUNCATION_HEADERS: |
---|
| 519 | return 0; |
---|
| 520 | case SYNC_TRUNCATION_512B: |
---|
| 521 | return 512; |
---|
| 522 | case SYNC_TRUNCATION_1K: |
---|
| 523 | return 1024; |
---|
| 524 | case SYNC_TRUNCATION_5K: |
---|
| 525 | return 5*1024; |
---|
| 526 | case SYNC_TRUNCATION_SEVEN: |
---|
| 527 | case SYNC_TRUNCATION_ALL: |
---|
| 528 | return 1024*1024; // We'll limit to 1MB anyway |
---|
| 529 | default: |
---|
| 530 | return 1024; // Default to 1Kb |
---|
| 531 | } |
---|
| 532 | } |
---|
| 533 | |
---|
| 534 | }; |
---|
| 535 | |
---|
| 536 | class BackendDiff { |
---|
| 537 | var $_user; |
---|
| 538 | var $_devid; |
---|
| 539 | var $_protocolversion; |
---|
| 540 | |
---|
| 541 | function Logon($username, $domain, $password) { |
---|
| 542 | return true; |
---|
| 543 | } |
---|
| 544 | |
---|
| 545 | // completing protocol |
---|
| 546 | function Logoff() { |
---|
| 547 | return true; |
---|
| 548 | } |
---|
| 549 | |
---|
| 550 | function Setup($user, $devid, $protocolversion) { |
---|
| 551 | $this->_user = $user; |
---|
| 552 | $this->_devid = $devid; |
---|
| 553 | $this->_protocolversion = $protocolversion; |
---|
| 554 | |
---|
| 555 | return true; |
---|
| 556 | } |
---|
| 557 | |
---|
| 558 | function GetHierarchyImporter() { |
---|
| 559 | return new ImportHierarchyChangesDiff($this); |
---|
| 560 | } |
---|
| 561 | |
---|
| 562 | function GetContentsImporter($folderid) { |
---|
| 563 | return new ImportContentsChangesDiff($this, $folderid); |
---|
| 564 | } |
---|
| 565 | |
---|
| 566 | function GetExporter($folderid = false) { |
---|
| 567 | return new ExportChangesDiff($this, $folderid); |
---|
| 568 | } |
---|
| 569 | |
---|
| 570 | function GetHierarchy() { |
---|
| 571 | $folders = array(); |
---|
| 572 | |
---|
| 573 | $fl = $this->getFolderList(); |
---|
| 574 | foreach($fl as $f){ |
---|
| 575 | $folders[] = $this->GetFolder($f['id']); |
---|
| 576 | } |
---|
| 577 | |
---|
| 578 | return $folders; |
---|
| 579 | } |
---|
| 580 | |
---|
| 581 | function Fetch($folderid, $id, $mimesupport = 0) { |
---|
| 582 | return $this->GetMessage($folderid, $id, 1024*1024, $mimesupport); // Forces entire message (up to 1Mb) |
---|
| 583 | } |
---|
| 584 | |
---|
| 585 | function GetAttachmentData($attname) { |
---|
| 586 | return false; |
---|
| 587 | } |
---|
| 588 | |
---|
| 589 | function SendMail($rfc822, $forward = false, $reply = false, $parent = false) { |
---|
| 590 | return true; |
---|
| 591 | } |
---|
| 592 | |
---|
| 593 | function GetWasteBasket() { |
---|
| 594 | return false; |
---|
| 595 | } |
---|
| 596 | |
---|
| 597 | function GetMessageList($folderid, $cutoffdate) { |
---|
| 598 | return array(); |
---|
| 599 | } |
---|
| 600 | |
---|
| 601 | function StatMessage($folderid, $id) { |
---|
| 602 | return false; |
---|
| 603 | } |
---|
| 604 | |
---|
| 605 | function GetMessage($folderid, $id, $truncsize, $mimesupport = 0) { |
---|
| 606 | return false; |
---|
| 607 | } |
---|
| 608 | |
---|
| 609 | function DeleteMessage($folderid, $id) { |
---|
| 610 | return false; |
---|
| 611 | } |
---|
| 612 | |
---|
| 613 | function SetReadFlag($folderid, $id, $flags) { |
---|
| 614 | return false; |
---|
| 615 | } |
---|
| 616 | |
---|
| 617 | function ChangeMessage($folderid, $id, $message) { |
---|
| 618 | return false; |
---|
| 619 | } |
---|
| 620 | |
---|
| 621 | function MoveMessage($folderid, $id, $newfolderid) { |
---|
| 622 | return false; |
---|
| 623 | } |
---|
| 624 | |
---|
| 625 | function MeetingResponse($requestid, $folderid, $error, &$calendarid) { |
---|
| 626 | return false; |
---|
| 627 | } |
---|
| 628 | |
---|
| 629 | function getTruncSize($truncation) { |
---|
| 630 | switch($truncation) { |
---|
| 631 | case SYNC_TRUNCATION_HEADERS: |
---|
| 632 | return 0; |
---|
| 633 | case SYNC_TRUNCATION_512B: |
---|
| 634 | return 512; |
---|
| 635 | case SYNC_TRUNCATION_1K: |
---|
| 636 | return 1024; |
---|
| 637 | case SYNC_TRUNCATION_5K: |
---|
| 638 | return 5*1024; |
---|
| 639 | case SYNC_TRUNCATION_ALL: |
---|
| 640 | return 1024*1024; // We'll limit to 1MB anyway |
---|
| 641 | default: |
---|
| 642 | return 1024; // Default to 1Kb |
---|
| 643 | } |
---|
| 644 | } |
---|
| 645 | |
---|
| 646 | /** |
---|
| 647 | * Returns array of items which contain contact information |
---|
| 648 | * |
---|
| 649 | * @param string $searchquery |
---|
| 650 | * |
---|
| 651 | * @return array |
---|
| 652 | */ |
---|
| 653 | function getSearchResults($searchquery) { |
---|
| 654 | return false; |
---|
| 655 | } |
---|
| 656 | |
---|
| 657 | /** |
---|
| 658 | * Checks if the sent policykey matches the latest policykey on the server |
---|
| 659 | * |
---|
| 660 | * @param string $policykey |
---|
| 661 | * @param string $devid |
---|
| 662 | * |
---|
| 663 | * @return status flag |
---|
| 664 | */ |
---|
| 665 | function CheckPolicy($policykey, $devid) { |
---|
| 666 | global $user, $auth_pw; |
---|
| 667 | |
---|
| 668 | $status = SYNC_PROVISION_STATUS_SUCCESS; |
---|
| 669 | |
---|
| 670 | $user_policykey = $this->getPolicyKey($user, $auth_pw, $devid); |
---|
| 671 | |
---|
| 672 | if ($user_policykey != $policykey) { |
---|
| 673 | $status = SYNC_PROVISION_STATUS_POLKEYMISM; |
---|
| 674 | } |
---|
| 675 | |
---|
| 676 | if (!$policykey) $policykey = $user_policykey; |
---|
| 677 | return $status; |
---|
| 678 | } |
---|
| 679 | |
---|
| 680 | /** |
---|
| 681 | * Return a policy key for given user with a given device id. |
---|
| 682 | * If there is no combination user-deviceid available, a new key |
---|
| 683 | * should be generated. |
---|
| 684 | * |
---|
| 685 | * @param string $user |
---|
| 686 | * @param string $pass |
---|
| 687 | * @param string $devid |
---|
| 688 | * |
---|
| 689 | * @return unknown |
---|
| 690 | */ |
---|
| 691 | function getPolicyKey($user, $pass, $devid) { |
---|
| 692 | return false; |
---|
| 693 | } |
---|
| 694 | |
---|
| 695 | /** |
---|
| 696 | * Generate a random policy key. Right now it's a 10-digit number. |
---|
| 697 | * |
---|
| 698 | * @return unknown |
---|
| 699 | */ |
---|
| 700 | function generatePolicyKey(){ |
---|
| 701 | return mt_rand(1000000000, 9999999999); |
---|
| 702 | } |
---|
| 703 | |
---|
| 704 | /** |
---|
| 705 | * Set a new policy key for the given device id. |
---|
| 706 | * |
---|
| 707 | * @param string $policykey |
---|
| 708 | * @param string $devid |
---|
| 709 | * @return unknown |
---|
| 710 | */ |
---|
| 711 | function setPolicyKey($policykey, $devid) { |
---|
| 712 | return false; |
---|
| 713 | } |
---|
| 714 | |
---|
| 715 | /** |
---|
| 716 | * Return a device wipe status |
---|
| 717 | * |
---|
| 718 | * @param string $user |
---|
| 719 | * @param string $pass |
---|
| 720 | * @param string $devid |
---|
| 721 | * @return int |
---|
| 722 | */ |
---|
| 723 | function getDeviceRWStatus($user, $pass, $devid) { |
---|
| 724 | return false; |
---|
| 725 | } |
---|
| 726 | |
---|
| 727 | /** |
---|
| 728 | * Set a new rw status for the device |
---|
| 729 | * |
---|
| 730 | * @param string $user |
---|
| 731 | * @param string $pass |
---|
| 732 | * @param string $devid |
---|
| 733 | * @param string $status |
---|
| 734 | * |
---|
| 735 | * @return boolean |
---|
| 736 | */ |
---|
| 737 | function setDeviceRWStatus($user, $pass, $devid, $status) { |
---|
| 738 | return false; |
---|
| 739 | } |
---|
| 740 | |
---|
| 741 | function AlterPing() { |
---|
| 742 | return false; |
---|
| 743 | } |
---|
| 744 | |
---|
| 745 | function AlterPingChanges($folderid, &$syncstate) { |
---|
| 746 | return array(); |
---|
| 747 | } |
---|
| 748 | } |
---|
| 749 | ?> |
---|