added google xoauth2 support + fixed a journaling issue

2025-06-13 11:37:02 +02:00 · 2012-09-28 10:34:04 +02:00
parent f930aacc84
commit 55de53bb26
111 changed files with 38812 additions and 4 deletions
--- a/webui/google-api/cache/apiMemcacheCache.php
+++ b/webui/google-api/cache/apiMemcacheCache.php
@ -0,0 +1,126 @@
+<?php
+/*
+ * Copyright 2008 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * A persistent storage class based on the memcache, which is not
+ * really very persistent, as soon as you restart your memcache daemon
+ * the storage will be wiped, however for debugging and/or speed
+ * it can be useful, kinda, and cache is a lot cheaper then storage.
+ *
+ * @author Chris Chabot <chabotc@google.com>
+ */
+class apiMemcacheCache extends apiCache {
+  private $connection = false;
+
+  public function __construct() {
+    global $apiConfig;
+    if (! function_exists('memcache_connect')) {
+      throw new apiCacheException("Memcache functions not available");
+    }
+    $this->host = $apiConfig['ioMemCacheCache_host'];
+    $this->port = $apiConfig['ioMemCacheCache_port'];
+    if (empty($this->host) || empty($this->port)) {
+      throw new apiCacheException("You need to supply a valid memcache host and port");
+    }
+  }
+
+  private function isLocked($key) {
+    $this->check();
+    if ((@memcache_get($this->connection, $key . '.lock')) === false) {
+      return false;
+    }
+    return true;
+  }
+
+  private function createLock($key) {
+    $this->check();
+    // the interesting thing is that this could fail if the lock was created in the meantime..
+    // but we'll ignore that out of convenience
+    @memcache_add($this->connection, $key . '.lock', '', 0, 5);
+  }
+
+  private function removeLock($key) {
+    $this->check();
+    // suppress all warnings, if some other process removed it that's ok too
+    @memcache_delete($this->connection, $key . '.lock');
+  }
+
+  private function waitForLock($key) {
+    $this->check();
+    // 20 x 250 = 5 seconds
+    $tries = 20;
+    $cnt = 0;
+    do {
+      // 250 ms is a long time to sleep, but it does stop the server from burning all resources on polling locks..
+      usleep(250);
+      $cnt ++;
+    } while ($cnt <= $tries && $this->isLocked($key));
+    if ($this->isLocked($key)) {
+      // 5 seconds passed, assume the owning process died off and remove it
+      $this->removeLock($key);
+    }
+  }
+
+  // I prefer lazy initialization since the cache isn't used every request
+  // so this potentially saves a lot of overhead
+  private function connect() {
+    if (! $this->connection = @memcache_pconnect($this->host, $this->port)) {
+      throw new apiCacheException("Couldn't connect to memcache server");
+    }
+  }
+
+  private function check() {
+    if (! $this->connection) {
+      $this->connect();
+    }
+  }
+
+  /**
+   * @inheritDoc
+   */
+  public function get($key, $expiration = false) {
+    $this->check();
+    if (($ret = @memcache_get($this->connection, $key)) === false) {
+      return false;
+    }
+    if (! $expiration || (time() - $ret['time'] > $expiration)) {
+      $this->delete($key);
+      return false;
+    }
+    return $ret['data'];
+  }
+
+  /**
+   * @inheritDoc
+   */
+  public function set($key, $value) {
+    $this->check();
+    // we store it with the cache_time default expiration so objects will at least get cleaned eventually.
+    if (@memcache_set($this->connection, $key, array('time' => time(),
+        'data' => $value), false) == false) {
+      throw new apiCacheException("Couldn't store data in cache");
+    }
+  }
+
+  /**
+   * @inheritDoc
+   */
+  public function delete($key) {
+    $this->check();
+    @memcache_delete($this->connection, $key);
+  }
+}