从RackSpace文件下载文件

Question

我已经使用composer安装了PHP。“示例”文件夹似乎有旧代码，因为它不适合我。我想从RackSpace文件夹下载一些文件。以下是我的代码，它没有带来任何东西。

<?php
require 'vendor/autoload.php';

$authURL = 'https://identity.api.rackspacecloud.com/v2.0/';
$credentials = array(
    'username' => 'XXXX',
    'apiKey' => 'XXXX'
);
$connection = new \OpenCloud\Rackspace($authURL, $credentials);
// var_dump($connection);exit;
$objstore = $connection->objectStoreService('cloudFiles', 'DFW');

// get our containers
print("Containers:\n");
$conlist = $objstore->listContainers();
//var_dump($conlist);
while($container = $conlist->Next()) {
    printf("* %s\n", $container->name);
}

Answer 1

首先，更新php-opencloud的最新版本，目前为1.7。

接下来，包含对象存储的示例代码位于here，但不包括您想要做的事情。

下面的代码(给定路径)将遍历容器并将对象从容器保存到目标路径($savePath)。如果该对象已经存在于该路径中，则将跳过该对象。此版本包括表示每个对象的成功或失败的输出。试试看，如果你有任何问题，请告诉我。

注意:请记住，的云文件( Object )是在每个数据中心的基础上处理的，因此只有连接到ORD中的objectStoreService，才能访问存储在ORD中的容器中的文件。

<?php
require 'vendor/autoload.php';

$authURL = 'https://identity.api.rackspacecloud.com/v2.0/';
$credentials = array(
    'username' => 'YOUR_USERNAME',
    'apiKey' => 'YOUR_API_KEY',
);

$savePath = '/path/to/files/';
$connection = new \OpenCloud\Rackspace($authURL, $credentials);

$objstore = $connection->objectStoreService('cloudFiles', 'ORD');

// get our containers
print("Containers:\n");
$conlist = $objstore->listContainers();
//var_dump($conlist);
while($container = $conlist->Next()) {
    printf("*** %s\n", $container->name);
    if($container->name == 'test2')
    {
        $files = $container->ObjectList();
        while($o = $files->Next())
        {
            $file_name = $o->getName();
            // Get our object
            $file = $container->getObject($file_name);
            printf("** %s\n", $file->getName());
            // Let's save this file
            echo "* Saving object\n";
            if(file_exists($savePath.$file_name))
            {
                echo "* File already exists! SKIPPING\n\n";
            }
            else
            {
                if (!$fp = @fopen($savePath.$file_name, "wb")) {
                    throw new OpenCloud\Common\Exceptions\IOError(sprintf(
                        'Could not open file [%s] for writing',
                        $savePath.$file_name
                    ));
                }
                //$retval = fwrite($fp, $o->getContent());
                if (fwrite($fp, $file->getContent()) === FALSE) {
                    echo "* ERROR - Cannot write to file ($savePath.$file_name)\n\n";
                }
                else
                {
                    echo "* File successfully written\n\n";
                }
            }
        }
    }
}

输出：

Containers:
*** gallery
*** test2
** 61OUUC44G-L._SL1471_.jpg
* Saving object
* File written

** Computer-Code.jpg
* Saving object
* File written

** accessibility2.jpg
* Saving object
* File written

我的服务器上的目录列表：

root@app01:/path/to/files# ll
total 960
drwxrwxrwx  2 root     root       4096 Nov  8 18:53 ./
drwxr-xr-x 15 www-data www-data   4096 Nov  8 18:20 ../
-rw-r--r--  1 www-data www-data  68650 Nov  8 18:45 61OUUC44G-L._SL1471_.jpg
-rw-r--r--  1 www-data www-data 374177 Nov  8 18:45 accessibility2.jpg
-rw-r--r--  1 www-data www-data 515919 Nov  8 18:45 Computer-Code.jpg

Answer 2

递归下载Rackspace云文件

<?php
/**
 *  "require": {
 *      "rackspace/php-opencloud": "dev-master"
 *  }
 */

ini_set('memory_limit', '2048M'); // size must be bigger than the biggest file
ini_set('max_execution_time', 0);

require 'vendor/autoload.php';

use OpenCloud\Rackspace;

// Instantiate a Rackspace client.
$client = new Rackspace(Rackspace::US_IDENTITY_ENDPOINT, array(
    'username' => '<USERNAME>',
    'apiKey'   => '<APIKEY>'
));

$objStore = $client->objectStoreService('cloudFiles', 'LON');
$savePath = __DIR__.'/backup/';

// get our containers
print("Containers:\n");
$containersList = $objStore->listContainers();

while($container = $containersList->Next()) {
    if( ! in_array($container->name, array('.CDN_ACCESS_LOGS', '<CONTAINER_TO_EXCLUDE>'))) {
        printf("*** %s\n", $container->name);

        $containerDir = $savePath.$container->name.'/';
        if (!is_dir($containerDir)) {
            mkdir($containerDir, 0777, true);
        }

        $files = $container->ObjectList();
        while($o = $files->Next()) {
            $file_name = $o->getName();

            if (file_exists($containerDir . $file_name)) {
                echo '## '.$containerDir.$file_name.' already exists'."\n";
                continue;
            }

            // Get our object
            $file = $container->getObject($file_name);

            if (strpos($file->getName(), '<FILES_TO_EXCLUDE>') !== false) {
                continue;
            }

            $tempDir = $containerDir . dirname($file->getName()) . '/';    
            if (!is_dir($tempDir)) {
                mkdir($tempDir, 0777, true);
            }

            if (file_put_contents($containerDir . $file_name, $file->getContent())) {
                printf("** %s - OK\n", $file->getName());
            } else {
                printf("** %s - KO\n", $file->getName());
            }
            unset($file);
        }
    }
}