Merge branch 'master' of git://github.com/friendica/friendica

6 files changed, 518 insertions, 0 deletions

diff --git a/library/Smarty/demo/plugins/cacheresource.apc.php b/library/Smarty/demo/plugins/cacheresource.apc.php
new file mode 100644
index 000000000..00ba59817
--- /dev/null
+++ b/library/Smarty/demo/plugins/cacheresource.apc.php
@@ -0,0 +1,77 @@
+<?php
+
+/**
+ * APC CacheResource
+ *
+ * CacheResource Implementation based on the KeyValueStore API to use
+ * memcache as the storage resource for Smarty's output caching.
+ * *
+ * @package CacheResource-examples
+ * @author Uwe Tews
+ */
+class Smarty_CacheResource_Apc extends Smarty_CacheResource_KeyValueStore {
+
+    public function __construct()
+    {
+        // test if APC is present
+        if(!function_exists('apc_cache_info')) {
+            throw new Exception('APC Template Caching Error: APC is not installed');
+        }
+    }
+
+    /**
+     * Read values for a set of keys from cache
+     *
+     * @param array $keys list of keys to fetch
+     * @return array list of values with the given keys used as indexes
+     * @return boolean true on success, false on failure
+     */
+    protected function read(array $keys)
+    {
+        $_res = array();
+        $res = apc_fetch($keys);
+        foreach ($res as $k => $v) {
+            $_res[$k] = $v;
+        }
+        return $_res;
+    }
+
+    /**
+     * Save values for a set of keys to cache
+     *
+     * @param array $keys list of values to save
+     * @param int $expire expiration time
+     * @return boolean true on success, false on failure
+     */
+    protected function write(array $keys, $expire=null)
+    {
+        foreach ($keys as $k => $v) {
+            apc_store($k, $v, $expire);
+        }
+        return true;
+    }
+
+    /**
+     * Remove values from cache
+     *
+     * @param array $keys list of keys to delete
+     * @return boolean true on success, false on failure
+     */
+    protected function delete(array $keys)
+    {
+        foreach ($keys as $k) {
+            apc_delete($k);
+        }
+        return true;
+    }
+
+    /**
+     * Remove *all* values from cache
+     *
+     * @return boolean true on success, false on failure
+     */
+    protected function purge()
+    {
+        return apc_clear_cache('user');
+    }
+}
diff --git a/library/Smarty/demo/plugins/cacheresource.memcache.php b/library/Smarty/demo/plugins/cacheresource.memcache.php
new file mode 100644
index 000000000..230607d69
--- /dev/null
+++ b/library/Smarty/demo/plugins/cacheresource.memcache.php
@@ -0,0 +1,91 @@
+<?php
+
+/**
+ * Memcache CacheResource
+ *
+ * CacheResource Implementation based on the KeyValueStore API to use
+ * memcache as the storage resource for Smarty's output caching.
+ *
+ * Note that memcache has a limitation of 256 characters per cache-key.
+ * To avoid complications all cache-keys are translated to a sha1 hash.
+ *
+ * @package CacheResource-examples
+ * @author Rodney Rehm
+ */
+class Smarty_CacheResource_Memcache extends Smarty_CacheResource_KeyValueStore {
+    /**
+     * memcache instance
+     * @var Memcache
+     */
+    protected $memcache = null;
+    
+    public function __construct()
+    {
+        $this->memcache = new Memcache();
+        $this->memcache->addServer( '127.0.0.1', 11211 );
+    }
+    
+    /**
+     * Read values for a set of keys from cache
+     *
+     * @param array $keys list of keys to fetch
+     * @return array list of values with the given keys used as indexes
+     * @return boolean true on success, false on failure
+     */
+    protected function read(array $keys)
+    {
+        $_keys = $lookup = array();
+        foreach ($keys as $k) {
+            $_k = sha1($k);
+            $_keys[] = $_k;
+            $lookup[$_k] = $k;
+        }
+        $_res = array();
+        $res = $this->memcache->get($_keys);
+        foreach ($res as $k => $v) {
+            $_res[$lookup[$k]] = $v;
+        }
+        return $_res;
+    }
+    
+    /**
+     * Save values for a set of keys to cache
+     *
+     * @param array $keys list of values to save
+     * @param int $expire expiration time
+     * @return boolean true on success, false on failure
+     */
+    protected function write(array $keys, $expire=null)
+    {
+        foreach ($keys as $k => $v) {
+            $k = sha1($k);
+            $this->memcache->set($k, $v, 0, $expire);
+        }
+        return true;
+    }
+
+    /**
+     * Remove values from cache
+     *
+     * @param array $keys list of keys to delete
+     * @return boolean true on success, false on failure
+     */
+    protected function delete(array $keys)
+    {
+        foreach ($keys as $k) {
+            $k = sha1($k);
+            $this->memcache->delete($k);
+        }
+        return true;
+    }
+
+    /**
+     * Remove *all* values from cache
+     *
+     * @return boolean true on success, false on failure
+     */
+    protected function purge()
+    {
+        return $this->memcache->flush();
+    }
+}
diff --git a/library/Smarty/demo/plugins/cacheresource.mysql.php b/library/Smarty/demo/plugins/cacheresource.mysql.php
new file mode 100644
index 000000000..ab8c47516
--- /dev/null
+++ b/library/Smarty/demo/plugins/cacheresource.mysql.php
@@ -0,0 +1,152 @@
+<?php
+
+/**
+ * MySQL CacheResource
+ *
+ * CacheResource Implementation based on the Custom API to use
+ * MySQL as the storage resource for Smarty's output caching.
+ *
+ * Table definition:
+ * <pre>CREATE TABLE IF NOT EXISTS `output_cache` (
+ *   `id` CHAR(40) NOT NULL COMMENT 'sha1 hash',
+ *   `name` VARCHAR(250) NOT NULL,
+ *   `cache_id` VARCHAR(250) NULL DEFAULT NULL,
+ *   `compile_id` VARCHAR(250) NULL DEFAULT NULL,
+ *   `modified` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+ *   `content` LONGTEXT NOT NULL,
+ *   PRIMARY KEY (`id`),
+ *   INDEX(`name`),
+ *   INDEX(`cache_id`),
+ *   INDEX(`compile_id`),
+ *   INDEX(`modified`)
+ * ) ENGINE = InnoDB;</pre>
+ *
+ * @package CacheResource-examples
+ * @author Rodney Rehm
+ */
+class Smarty_CacheResource_Mysql extends Smarty_CacheResource_Custom {
+    // PDO instance
+    protected $db;
+    protected $fetch;
+    protected $fetchTimestamp;
+    protected $save;
+    
+    public function __construct() {
+        try {
+            $this->db = new PDO("mysql:dbname=test;host=127.0.0.1", "smarty", "smarty");
+        } catch (PDOException $e) {
+            throw new SmartyException('Mysql Resource failed: ' . $e->getMessage());
+        }
+        $this->fetch = $this->db->prepare('SELECT modified, content FROM output_cache WHERE id = :id');
+        $this->fetchTimestamp = $this->db->prepare('SELECT modified FROM output_cache WHERE id = :id');
+        $this->save = $this->db->prepare('REPLACE INTO output_cache (id, name, cache_id, compile_id, content)
+            VALUES  (:id, :name, :cache_id, :compile_id, :content)');
+    }
+
+    /**
+     * fetch cached content and its modification time from data source
+     *
+     * @param string $id unique cache content identifier
+     * @param string $name template name
+     * @param string $cache_id cache id
+     * @param string $compile_id compile id
+     * @param string $content cached content
+     * @param integer $mtime cache modification timestamp (epoch)
+     * @return void
+     */
+    protected function fetch($id, $name, $cache_id, $compile_id, &$content, &$mtime)
+    {
+        $this->fetch->execute(array('id' => $id));
+        $row = $this->fetch->fetch();
+        $this->fetch->closeCursor();        
+        if ($row) {
+            $content = $row['content'];
+            $mtime = strtotime($row['modified']);
+        } else {
+            $content = null;
+            $mtime = null;
+        }
+    }
+    
+    /**
+     * Fetch cached content's modification timestamp from data source
+     *
+     * @note implementing this method is optional. Only implement it if modification times can be accessed faster than loading the complete cached content.
+     * @param string $id unique cache content identifier
+     * @param string $name template name
+     * @param string $cache_id cache id
+     * @param string $compile_id compile id
+     * @return integer|boolean timestamp (epoch) the template was modified, or false if not found
+     */
+    protected function fetchTimestamp($id, $name, $cache_id, $compile_id)
+    {
+        $this->fetchTimestamp->execute(array('id' => $id));
+        $mtime = strtotime($this->fetchTimestamp->fetchColumn());
+        $this->fetchTimestamp->closeCursor();
+        return $mtime;
+    }
+    
+    /**
+     * Save content to cache
+     *
+     * @param string $id unique cache content identifier
+     * @param string $name template name
+     * @param string $cache_id cache id
+     * @param string $compile_id compile id
+     * @param integer|null $exp_time seconds till expiration time in seconds or null
+     * @param string $content content to cache
+     * @return boolean success
+     */
+    protected function save($id, $name, $cache_id, $compile_id, $exp_time, $content)
+    {
+        $this->save->execute(array(
+            'id' => $id,
+            'name' => $name,
+            'cache_id' => $cache_id,
+            'compile_id' => $compile_id,
+            'content' => $content,
+        ));
+        return !!$this->save->rowCount();
+    }
+    
+    /**
+     * Delete content from cache
+     *
+     * @param string $name template name
+     * @param string $cache_id cache id
+     * @param string $compile_id compile id
+     * @param integer|null $exp_time seconds till expiration or null
+     * @return integer number of deleted caches
+     */
+    protected function delete($name, $cache_id, $compile_id, $exp_time)
+    {
+        // delete the whole cache
+        if ($name === null && $cache_id === null && $compile_id === null && $exp_time === null) {
+            // returning the number of deleted caches would require a second query to count them
+            $query = $this->db->query('TRUNCATE TABLE output_cache');
+            return -1;
+        }
+        // build the filter
+        $where = array();
+        // equal test name
+        if ($name !== null) {
+            $where[] = 'name = ' . $this->db->quote($name);
+        }
+        // equal test compile_id
+        if ($compile_id !== null) {
+            $where[] = 'compile_id = ' . $this->db->quote($compile_id);
+        }
+        // range test expiration time
+        if ($exp_time !== null) {
+            $where[] = 'modified < DATE_SUB(NOW(), INTERVAL ' . intval($exp_time) . ' SECOND)';
+        }
+        // equal test cache_id and match sub-groups
+        if ($cache_id !== null) {
+            $where[] = '(cache_id = '. $this->db->quote($cache_id)
+                . ' OR cache_id LIKE '. $this->db->quote($cache_id .'|%') .')';
+        }
+        // run delete query
+        $query = $this->db->query('DELETE FROM output_cache WHERE ' . join(' AND ', $where));
+        return $query->rowCount();
+    }
+}
diff --git a/library/Smarty/demo/plugins/resource.extendsall.php b/library/Smarty/demo/plugins/resource.extendsall.php
new file mode 100644
index 000000000..d8c40b5ba
--- /dev/null
+++ b/library/Smarty/demo/plugins/resource.extendsall.php
@@ -0,0 +1,60 @@
+<?php
+
+/**
+ * Extends All Resource
+ * 
+ * Resource Implementation modifying the extends-Resource to walk
+ * through the template_dirs and inherit all templates of the same name
+ * 
+ * @package Resource-examples
+ * @author Rodney Rehm
+ */
+class Smarty_Resource_Extendsall extends Smarty_Internal_Resource_Extends {
+    
+    /**
+     * populate Source Object with meta data from Resource
+     *
+     * @param Smarty_Template_Source $source source object
+     * @param Smarty_Internal_Template $_template template object
+     * @return void
+     */
+    public function populate(Smarty_Template_Source $source, Smarty_Internal_Template $_template=null)
+    {
+        $uid = '';
+        $sources = array();
+        $exists = true;
+        foreach ($_template->smarty->getTemplateDir() as $key => $directory) {
+            try {
+                $s = Smarty_Resource::source(null, $source->smarty, '[' . $key . ']' . $source->name );
+                if (!$s->exists) {
+                    continue;
+                }
+                $sources[$s->uid] = $s;
+                $uid .= $s->filepath;
+            }
+            catch (SmartyException $e) {}
+        }
+        
+        if (!$sources) {
+            $source->exists = false;
+            $source->template = $_template;
+            return;
+        }
+        
+        $sources = array_reverse($sources, true);
+        reset($sources);
+        $s = current($sources);
+        
+        $source->components = $sources;
+        $source->filepath = $s->filepath;
+        $source->uid = sha1($uid);
+        $source->exists = $exists;
+        if ($_template && $_template->smarty->compile_check) {
+            $source->timestamp = $s->timestamp;
+        }
+        // need the template at getContent()
+        $source->template = $_template;
+    }
+} 
+
+?>
\ No newline at end of file
diff --git a/library/Smarty/demo/plugins/resource.mysql.php b/library/Smarty/demo/plugins/resource.mysql.php
new file mode 100644
index 000000000..312f3fc73
--- /dev/null
+++ b/library/Smarty/demo/plugins/resource.mysql.php
@@ -0,0 +1,76 @@
+<?php
+
+/**
+ * MySQL Resource
+ *
+ * Resource Implementation based on the Custom API to use
+ * MySQL as the storage resource for Smarty's templates and configs.
+ *
+ * Table definition:
+ * <pre>CREATE TABLE IF NOT EXISTS `templates` (
+ *   `name` varchar(100) NOT NULL,
+ *   `modified` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+ *   `source` text,
+ *   PRIMARY KEY (`name`)
+ * ) ENGINE=InnoDB DEFAULT CHARSET=utf8;</pre>
+ *
+ * Demo data:
+ * <pre>INSERT INTO `templates` (`name`, `modified`, `source`) VALUES ('test.tpl', "2010-12-25 22:00:00", '{$x="hello world"}{$x}');</pre>
+ *
+ * @package Resource-examples
+ * @author Rodney Rehm
+ */
+class Smarty_Resource_Mysql extends Smarty_Resource_Custom {
+    // PDO instance
+    protected $db;
+    // prepared fetch() statement
+    protected $fetch;
+    // prepared fetchTimestamp() statement
+    protected $mtime;
+
+    public function __construct() {
+        try {
+            $this->db = new PDO("mysql:dbname=test;host=127.0.0.1", "smarty", "smarty");
+        } catch (PDOException $e) {
+            throw new SmartyException('Mysql Resource failed: ' . $e->getMessage());
+        }
+        $this->fetch = $this->db->prepare('SELECT modified, source FROM templates WHERE name = :name');
+        $this->mtime = $this->db->prepare('SELECT modified FROM templates WHERE name = :name');
+    }
+    
+    /**
+     * Fetch a template and its modification time from database
+     *
+     * @param string $name template name
+     * @param string $source template source
+     * @param integer $mtime template modification timestamp (epoch)
+     * @return void
+     */
+    protected function fetch($name, &$source, &$mtime)
+    {
+        $this->fetch->execute(array('name' => $name));
+        $row = $this->fetch->fetch();
+        $this->fetch->closeCursor();
+        if ($row) {
+            $source = $row['source'];
+            $mtime = strtotime($row['modified']);
+        } else {
+            $source = null;
+            $mtime = null;
+        }
+    }
+    
+    /**
+     * Fetch a template's modification time from database
+     *
+     * @note implementing this method is optional. Only implement it if modification times can be accessed faster than loading the comple template source.
+     * @param string $name template name
+     * @return integer timestamp (epoch) the template was modified
+     */
+    protected function fetchTimestamp($name) {
+        $this->mtime->execute(array('name' => $name));
+        $mtime = $this->mtime->fetchColumn();
+        $this->mtime->closeCursor();
+        return strtotime($mtime);
+    }
+}
diff --git a/library/Smarty/demo/plugins/resource.mysqls.php b/library/Smarty/demo/plugins/resource.mysqls.php
new file mode 100644
index 000000000..f9fe1c2f2
--- /dev/null
+++ b/library/Smarty/demo/plugins/resource.mysqls.php
@@ -0,0 +1,62 @@
+<?php
+
+/**
+ * MySQL Resource
+ *
+ * Resource Implementation based on the Custom API to use
+ * MySQL as the storage resource for Smarty's templates and configs.
+ *
+ * Note that this MySQL implementation fetches the source and timestamps in
+ * a single database query, instead of two seperate like resource.mysql.php does.
+ *
+ * Table definition:
+ * <pre>CREATE TABLE IF NOT EXISTS `templates` (
+ *   `name` varchar(100) NOT NULL,
+ *   `modified` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+ *   `source` text,
+ *   PRIMARY KEY (`name`)
+ * ) ENGINE=InnoDB DEFAULT CHARSET=utf8;</pre>
+ *
+ * Demo data:
+ * <pre>INSERT INTO `templates` (`name`, `modified`, `source`) VALUES ('test.tpl', "2010-12-25 22:00:00", '{$x="hello world"}{$x}');</pre>
+ *
+ * @package Resource-examples
+ * @author Rodney Rehm
+ */
+class Smarty_Resource_Mysqls extends Smarty_Resource_Custom {
+    // PDO instance
+    protected $db;
+    // prepared fetch() statement
+    protected $fetch;
+
+    public function __construct() {
+        try {
+            $this->db = new PDO("mysql:dbname=test;host=127.0.0.1", "smarty", "smarty");
+        } catch (PDOException $e) {
+            throw new SmartyException('Mysql Resource failed: ' . $e->getMessage());
+        }
+        $this->fetch = $this->db->prepare('SELECT modified, source FROM templates WHERE name = :name');
+    }
+    
+    /**
+     * Fetch a template and its modification time from database
+     *
+     * @param string $name template name
+     * @param string $source template source
+     * @param integer $mtime template modification timestamp (epoch)
+     * @return void
+     */
+    protected function fetch($name, &$source, &$mtime)
+    {
+        $this->fetch->execute(array('name' => $name));
+        $row = $this->fetch->fetch();
+        $this->fetch->closeCursor();
+        if ($row) {
+            $source = $row['source'];
+            $mtime = strtotime($row['modified']);
+        } else {
+            $source = null;
+            $mtime = null;
+        }
+    }
+}