initial checkin from subversion
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Tretter
228
shoppinglist.php
Normal file
228
shoppinglist.php
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<?php
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/* $Revision: 58 $ */
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error_reporting(-1);
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ini_set('display_errors', 'On');
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$db = new SQLite3('/var/lib/sqlite/shoppinglist.db');
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try {
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$db->busyTimeout(300000); // 5 min. is a lot but who knows how busy we are; apart from that people don't notice as things run in background :)
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} catch (Exception $ex) {
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// if not supported then can't set it but it's not a break of the leg ;)
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}
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$ShoppingListKey = null;
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$BrowserId = null;
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function readGlobalVars() {
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global $db, $ShoppingListKey, $BrowserId;
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$BrowserId=$_POST['BrowserId'];
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$ShoppingListName=$_POST['ShoppingListName'];
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$ShoppingListKey = $db->querySingle("SELECT key FROM shoppinglist where name='" . SQLite3::escapeString($ShoppingListName) . "'");
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return($ShoppingListKey);
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}
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function BrandBrowser() {
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global $db, $ShoppingListKey, $BrowserId;
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$ShoppingListName=$_POST['ShoppingListName'];
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$res=true;
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$ShoppingListKey = readGlobalVars();
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if (null == $ShoppingListKey ) {
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$res=$db->exec("insert into shoppinglist (name) values ('" . SQLite3::escapeString($ShoppingListName) . "')");
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$ShoppingListKey = $db->lastInsertRowID();
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}
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echo "{ \"Result\":\"" . ($res==true?"True":"False") . "\", \"TransferQKey\":\"" . $_POST['TransferQKey'] . "\" }";
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}
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function DeleteShop(){
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global $db, $ShoppingListKey, $BrowserId;
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$shopGlobalId = $_POST['GlobalId'];
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$sql="update entry set BrowserId = '" . SQLite3::escapeString($BrowserId) . "', status='d' where shoppingListKey=$ShoppingListKey and shopKey in (select key from Shop where globalId='" . SQLite3::escapeString($shopGlobalId) . "') ";
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$res=$db->exec($sql);
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if ($res == true) {
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$res=$db->exec("update shop set BrowserId = '" . SQLite3::escapeString($BrowserId) . "', status='d' where shoppingListKey=" . $ShoppingListKey . " and globalId='" . SQLite3::escapeString($shopGlobalId) . "' ");
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}
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echo "{ \"Result\":\"" . ($res==true?"True":"False") . "\", \"TransferQKey\":\"" . $_POST['TransferQKey'] . "\" }";
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}
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function ReceiveShop() {
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global $db, $ShoppingListKey, $BrowserId;
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$description = $_POST['Description'];
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$shopGlobalId = $_POST['GlobalId'];
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$status = isset($_POST['value']) ? $_POST['value'] : "a";
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if ($status != "d") {
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$status = "a";
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}
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$res=true;
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$shopKey = $db->querySingle("Select key from shop where globalId='" . SQLite3::escapeString($shopGlobalId) . "'");
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if (null == $shopKey) {
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$res=$db->exec("insert into Shop (status,shoppinglistKey,BrowserId,globalId,Description) values ('a'," . $ShoppingListKey . ", '" . $BrowserId . "','" . SQLite3::escapeString($shopGlobalId) . "','" . SQLite3::escapeString($description) . "')");
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$shopKey = $db->lastInsertRowID();
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} else {
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$res=$db->exec("update Shop set status='" . SQLite3::escapeString($status) . "', BrowserId='" . $BrowserId . "', Description = '" . SQLite3::escapeString($description) . "' where key=" . $shopKey);
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}
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echo "{ \"Result\":\"" . ($res==true?"True":"False") . "\", \"TransferQKey\":\"" . $_POST['TransferQKey'] . "\", \"ShopKey\":\"$shopKey\" }";
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}
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function ReceiveEntry() {
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global $db, $ShoppingListKey, $BrowserId;
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$description = $_POST['Description'];
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$shopGlobalId = $_POST['shopGlobalId'];
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$res = true;
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$shopKey = $db->querySingle("Select key from shop where shoppinglistkey=" . $ShoppingListKey . " and globalId='" . SQLite3::escapeString($shopGlobalId) . "'");
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if (null == $shopKey) {
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// normally the shop should arrive first, but it's not guaranteed.... if it doesn't the create a dummy shop...
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$res=$db->exec("insert into Shop (status,shoppinglistkey,BrowserId,globalId,Description) values ('a'," . $ShoppingListKey . ", '" . SQLite3::escapeString($BrowserId) . "','" . SQLite3::escapeString($shopGlobalId) . "','Default')");
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$shopKey = $db->lastInsertRowID();
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}
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if ($res==true) {
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$EntryKey = $db->querySingle("SELECT key FROM Entry where Description='" . SQLite3::escapeString($description) . "' and ShoppingListKey=" . $ShoppingListKey . " and shopKey=" . $shopKey);
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if (null == $EntryKey) {
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$res=$db->exec("insert into Entry (Status,ShoppingListKey,BrowserId,shopKey,Description) values ('a'," . $ShoppingListKey . ",'" . SQLite3::escapeString($BrowserId) . "'," . $shopKey . ",'" . SQLite3::escapeString($description) . "')");
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$EntryKey = $db->lastInsertRowID();
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} else {
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$res=$db->exec("update Entry set status='a', BrowserId='" . $BrowserId . "', Description = '" . SQLite3::escapeString($description) . "' where key=" . $EntryKey);
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}
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}
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echo "{ \"Result\":\"" . ($res==true?"True":"False") . "\", \"TransferQKey\":\"" . $_POST['TransferQKey'] . "\", \"EntryKey\":\"$EntryKey\" }";
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}
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function SendChangedData() {
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global $db, $ShoppingListKey, $BrowserId;
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$maxModified = $_POST['maxModified'];
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$sleepTimer=5; // sleep 5 seconds per Iteration
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$numIterations=0;
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$Data=null;
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while ($Data == null && ($numIterations++ * $sleepTimer)<100){ // do a roundtrip all 100 seconds.
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$Data=getModifiedShopData($maxModified["Shop"]);
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if ($Data==null) { $Data=getModifiedEntryData($maxModified["Entry"] ); }
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if ($Data != null) {
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echo $Data;
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} else {
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sleep($sleepTimer);
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}
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}
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if (null == $Data) {
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echo "{ \"ChangeType\":\"None\", \"Result\":\"True\" }";
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}
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}
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function getModifiedShopData($maxModified) {
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global $db, $ShoppingListKey, $BrowserId;
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$sAddCond="";
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// For initial downloads do not send deleted records.
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if ($maxModified == 0) {
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$sAddCond=" and Shop.status != 'd' ";
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}
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$allShops = null;
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$retVal = null;
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$ojShops=null;
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$sql="SELECT shop.status, shop.modified, shop.key, shop.globalId, shop.Description FROM shop where shop.shoppinglistKey=" . $ShoppingListKey . " and shop.browserId != '" . SQLite3::escapeString($BrowserId) . "' and shop.modified>" . SQLite3::escapeString($maxModified) . "" . $sAddCond . " Order by shop.modified";
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$allShops = $db->query($sql);
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while ($theShop = $allShops->fetchArray()) {
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if (null==$ojShops) { $ojShops=", \"Shops\":["; }
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$ojShops .= "{ \"ShopKey\":\"" . $theShop["key"] . "\", \"Modified\":\"" . $theShop["modified"] . "\", \"Status\":\"" . $theShop["status"] . "\", \"GlobalId\":" . json_encode($theShop["globalId"]) . ", \"Description\":" . json_encode($theShop["Description"]) . " },";
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}
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if (null!=$ojShops) { $ojShops = rtrim($ojShops,",") . "]"; } else { $ojShops=""; }
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if ($ojShops!=null) {
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$retVal= "{ \"ChangeType\":\"Shop\", \"Result\":\"" . ($allShops==true?"True":"False") . "\" " . $ojShops . " }";
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}
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return($retVal);
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}
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function getModifiedEntryData($maxModified) {
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global $db, $ShoppingListKey, $BrowserId;
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$sAddCond="";
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// For initial downloads do not send deleted records.
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if ($maxModified == 0) {
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$sAddCond=" and Entry.status != 'd' ";
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}
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$allEntries = null;
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$retVal = null;
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$ojEntries=null;
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$allEntries = $db->query("SELECT entry.status, entry.modified, entry.key, entry.Description, shop.globalId FROM entry,shop where entry.shoppingListKey=" . $ShoppingListKey . " and shop.key=entry.shopKey and entry.BrowserId != '" . SQLite3::escapeString($BrowserId) . "' and entry.modified>" . SQLite3::escapeString($maxModified) . "" . $sAddCond . " Order by entry.modified");
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while ($theEntry = $allEntries->fetchArray()) {
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if (null==$ojEntries) { $ojEntries=", \"Entries\":["; }
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$ojEntries .= "{ \"EntryKey\":\"" . $theEntry["key"] . "\", \"Modified\":\"" . $theEntry["modified"] . "\", \"Status\":\"" . $theEntry["status"] . "\", \"Description\":" . json_encode($theEntry["Description"]) . ", \"shopGlobalId\":" . json_encode($theEntry["globalId"]) . " },";
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}
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if (null!=$ojEntries) { $ojEntries = rtrim($ojEntries,",") . "]"; } else { $ojEntries=""; }
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if ($ojEntries!=null) {
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$retVal= "{ \"ChangeType\":\"Entry\", \"Result\":\"" . ($allEntries==true?"True":"False") . "\" " . $ojEntries . " }";
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}
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return($retVal);
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}
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function DeleteEntry(){
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global $db, $ShoppingListKey, $BrowserId;
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$Description = $_POST['Description'];
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$shopGlobalId = null;
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if (!empty($_POST['shopGlobalId'])) {
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$shopGlobalId = $_POST['shopGlobalId'];
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}
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$res = true;
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if ($res==true) {
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$sql="update entry set BrowserId = '" . SQLite3::escapeString($BrowserId) . "', status='d' where shoppingListKey=$ShoppingListKey and Description='" . SQLite3::escapeString($Description) . "'";
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if (null != $shopGlobalId) { $sql = $sql . " and shopKey = (select key from shop where globalId='" . SQLite3::escapeString($shopGlobalId) . "')"; }
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$res=$db->exec($sql);
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}
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echo "{ \"Result\":\"" . ($res==true?"True":"False") . "\", \"TransferQKey\":\"" . $_POST['TransferQKey'] . "\" }";
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}
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readGlobalVars();
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if(isset($_POST['action']) && !empty($_POST['action'])) {
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$action = $_POST['action'];
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switch($action) {
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case 'BrandBrowser' : BrandBrowser() ; break;
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case 'ReceiveEntry' : ReceiveEntry() ; break;
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case 'ReceiveShop' : ReceiveShop() ; break;
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case 'SendChangedData' : SendChangedData() ; break;
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case 'DeleteEntry' : DeleteEntry() ; break;
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case 'DeleteShop' : DeleteShop() ; break;
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}
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}
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$db->close();
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?>
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